CN115189848B

CN115189848B - Communication method and device

Info

Publication number: CN115189848B
Application number: CN202110369415.6A
Authority: CN
Inventors: 李君瑶; 杨帆; 黎超; 张莉莉
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2021-04-06
Filing date: 2021-04-06
Publication date: 2025-08-08
Anticipated expiration: 2041-04-06
Also published as: CN115189848A

Abstract

The present application provides a communication method and apparatus that can be applied to a communication system, such as a long term evolution system or a new air interface system. The communication method includes: a terminal device obtains a first index, and determines, based on a first mapping relationship: a target uplink control resource and a target repetition factor corresponding to the first index. In the first mapping relationship, one index can correspond to one repetition factor and one uplink control resource. The terminal device sends an uplink signal on the target uplink control resource according to the target repetition factor. Through the embodiments of the present application, the repetition factor corresponding to the uplink signal takes into account both resource overhead and flexibility, which can improve communication efficiency.

Description

Communication method and device

Technical Field

The present application relates to the field of communications, and in particular, to a communication method and apparatus.

Background

To ensure communication quality, a physical uplink control channel (physical uplink control channel, PUCCH) may be repeatedly transmitted, and the number of times of PUCCH transmission is a repetition factor.

Currently, the repetition factor may be determined based on three schemes of a PUCCH resource indication (PUCCH resource indicator, PRI) field (field), a transmission power control (transmit power control, TPC) field, or a newly added field in downlink control information (downlink control information, DCI). Specifically, in the PRI-based scheme, the repetition factor may be implicitly indicated according to an association relationship between the PUCCH resource and the repetition factor, that is, the PRI is multiplexed to indicate the repetition factor. In TPC based schemes, the repetition factor may be indicated with the TPC field in situations where no adjustment of the transmit power is required, such as coverage limited situations. Of course, the repetition factor may also be indicated based on a newly added field in the DCI.

However, in the PRI-based scheme, since only one repetition factor is associated with each PUCCH resource, i.e., PRI indication information corresponds to the repetition factors one by one, the indicated repetition factors are fixed, e.g., cannot match the channel conditions, and thus the flexibility is poor. The TPC-based scheme is only applicable to scenes with limited coverage and limited applicable scenes. In the scheme based on the newly added field of the DCI, the newly added field can increase the resource overhead, and when the bit number of the newly added field is small, only partial repetition factors can be indicated, and the flexibility is still poor. In summary, none of the above three schemes can compromise resource overhead and flexibility.

Disclosure of Invention

The embodiment of the application provides a communication method and a device, which can improve communication efficiency.

In order to achieve the above purpose, the application adopts the following technical scheme:

In a first aspect, a communication method is provided. The communication method comprises the steps that terminal equipment obtains a first index and determines target uplink control resources and target repetition factors corresponding to the first index according to a first mapping relation. In the first mapping relationship, one index may correspond to one repetition factor and one uplink control resource. The target repetition factor is used to transmit the uplink signal on the target uplink control resource.

Based on the communication method provided in the first aspect, the target uplink control resource and the target repetition factor may be determined based on the index and the first mapping relation. Wherein, one index corresponds to one uplink control resource and one repetition factor, i.e. the combination between the uplink control resource and different repetition factors corresponds to different indexes. Therefore, the same uplink control resource can correspond to a plurality of repetition factors, and the target repetition factor is determined from the repetition factors corresponding to the uplink control resource according to the index, so that the indication of the repetition factor is more flexible, for example, the repetition factor can be indicated according to the channel environment, and the communication efficiency is improved.

In addition, the index can be determined through the existing field, so that the implicit indication of the repetition factor is realized, and the field does not need to be added, so that extra resource expenditure is avoided, and the communication efficiency is further improved.

In addition, the repetition factor can be indicated under different conditions, such as coverage limited conditions or non-coverage limited conditions, through the index, so that the flexibility of the repetition factor indication can be improved, and the communication efficiency can be further improved. In summary, the communication method described in the first aspect can take account of resource overhead and flexibility, thereby improving communication efficiency.

It should be noted that, in some possible designs, in the first mapping relationship in the embodiments of the present application, an index may also correspond to an index of a repetition factor and an index of an uplink control resource.

In one possible design, the terminal device obtaining the first index may include the terminal device obtaining configuration information and determining the first index according to the configuration information. The configuration information may include the number of uplink control resources, the number of repetition factors corresponding to the first mapping relationship, the first uplink resource index indication information, the total number of control channel elements CCEs in the downlink control resource set CORESET, and the first resource index.

Alternatively, the first uplink resource index indication information may be uplink control resource indication information.

Alternatively, the first resource index may be an index of a first CCE occupied by the physical downlink control channel.

In one possible design, the first index is related to a ratio of the first resource index to a total number of CCEs in the downlink control resource set, and the first uplink resource index indicates information.

In one possible design, the first index may satisfy the following relationship: Wherein r _re,rep is a first index, N _CCE,p is the total number of CCEs in the downlink control resource set, N _CCE,p is the first resource index, N _CCE,p/N_CCE,p＜1,R_re,rep is the product of the number of repetition factors and the number of uplink control resources, and Δ _PRI is the value of the first uplink resource index indication information. Therefore, different indexes can be determined through different combinations of PRI and the first resource index, so that different repetition factors and flexible indication of uplink control resources can be realized, and the communication efficiency is further improved.

In one possible design, the first index may satisfy one of the following relationships: Or alternatively, the first and second heat exchangers may be, Wherein R _re,rep is a first index, N _CCE,p is the total number of CCEs in the downlink control resource set, N _CCE,p is the first resource index, N _CCE,p/N_CCE,p＜1,R_PUCCH is 0-N _CCE,p/N_CCE,p＜1,R_PUCCH is the number of uplink control resources, R _re,rep is the product of the number of repetition factors and the number of uplink control resources, and Δ _PRI is the value of the first uplink resource index indication information.

In one possible design, the first index may satisfy the following relationship: Wherein r _re,rep is a first joint index, N _CCE,p is the number of CCEs in the downlink control resource set, N _CCE,p is the first resource index, N _CCE,p/N_CCE,p＜1,R_repetition is a repetition factor number, and Δ _PRI is a value of first uplink resource index indication information.

In one possible design, the first index may satisfy the following relationship: Wherein R _re,rep is a first index, N _CCE,p is the total number of CCEs in the downlink control resource set, N _CCE,p is the first resource index, N _CCE,p/N_CCE,p＜1,R_PUCCH is 0-N _CCE,p/N_CCE,p＜1,R_PUCCH is the number of uplink control resources, R _re,rep is the product of the number of repetition factors and the number of uplink control resources, and Δ _PRI is the value of the first uplink resource index indication information.

In one possible design, the first index may satisfy the following relationship: Wherein R _re,rep is a first index, N _CCE,p is the total number of CCEs in the downlink control resource set, N _CCE,p is a first resource index, N _CCE,p/N_CCE,p＜1,R_repetition is 0-N _CCE,p/N_CCE,p＜1,R_repetition, R _PUCCH is the number of uplink control resources, R _re,rep is the product of the number of repetition factors and the number of uplink control resources, and Δ _PRI is the value of the first uplink resource index indication information.

In a possible design, the method of the first aspect may further include that the terminal device obtains first indication information, and determines a first mapping relationship according to the first repetition factor set and the uplink control resource set. The first indication information is used for indicating a first repetition factor set, and the first repetition factor set is one of a plurality of repetition factor sets. In this manner, one repetition factor set may be selected from the plurality of repetition factor sets, and the first mapping relationship may be determined according to the selected repetition factor set. For example, the repetition factor set can be selected according to the scene, so that the indication of the repetition factor can be more flexible, and the communication efficiency is further improved.

Further, the method of the first aspect may further include the terminal device receiving second indication information, where the second indication information is used to indicate multiple repetition factor sets. In this manner, different sets of repetition factors may be dynamically configured. For example, the repetition factor set may be configured according to a scenario, so that the indication of the repetition factor is more flexible, thereby further improving communication efficiency.

Optionally, the second indication information may be carried in one or more of downlink control information or medium access control-control cells, where the downlink control information includes one or more of modulation and coding scheme indication information, carrier indication information, antenna port indication information, or priority indication information.

Or alternatively, the second indication information may be an RNTI, which is used to scramble the downlink control information.

In a possible design, the terminal device determines, according to a first mapping relationship, a target uplink control resource and a target repetition factor corresponding to the first index, and may include determining, by the terminal device, an index of the target uplink control resource and an index of the target repetition factor according to the first joint index. And the terminal equipment determines the target uplink control resource and the target repetition factor according to the index of the target uplink control resource and the index of the target repetition factor.

It may be understood that in the embodiment of the present application, the terminal device may further directly determine the target uplink control resource and the target repetition factor through the first index.

Alternatively, the index of the target uplink control resource and the index of the target repetition factor may satisfy the following conditions: rep_index=r _re,repmod R_repetition. Wherein re_index is an index of the target uplink control resource, rep_index is an index of the target repetition factor, R _repetition is a number of repetition factors, and R _re,rep is an index corresponding to a combination of the target uplink control resource and the target repetition factor.

Or alternatively, the index of the target uplink control resource and the index of the target repetition factor may satisfy the condition that re_index=r _re,repmod R_PUCCH; Wherein re_index is an index of a target uplink control resource, rep_index is an index of a target repetition factor, R _PUCCH is the number of uplink control resources, and R _re,rep is an index corresponding to a combination of the target uplink control resource and the target repetition factor.

In a second aspect, a communication method is provided that includes a network device determining a target uplink control resource and a target repetition factor. The target repetition factor is used for receiving the uplink signal on the target uplink control resource. The network device transmits the first information. The first information includes the number of uplink control resources, the number of repetition factors, first uplink resource index indication information, the total number of control channel elements CCEs in the downlink control resource set CORESET, and a first resource index.

In one possible design, the first uplink resource index indication information may be uplink control resource indication information.

In one possible design, the first resource index may be an index of a first CCE occupied by the physical downlink control channel.

In one possible embodiment, the target repetition factor is determined from the first set of repetition factors. The method of the second aspect may further include transmitting the first indication information. The first indication information is used for indicating a first repetition factor set, and the first repetition factor set is one of a plurality of repetition factor sets.

Optionally, the method of the second aspect may further comprise sending second indication information. Wherein the second indication information is used for indicating a plurality of repetition factor sets.

In addition, the technical effects of the communication method described in the second aspect may refer to the technical effects of the communication method described in the first aspect, and are not described herein.

In a third aspect, a communication method is provided, the communication method including a terminal device obtaining third indication information. The third indication information is used for indicating target association information, the target association information is one of a plurality of candidate association information, and one candidate association information comprises a mapping relation between each uplink control resource and a repetition factor in one uplink control resource set. And the terminal equipment determines a target repetition factor of the target uplink control resource according to the target association information. The target uplink control resource is an uplink control resource indicated by the fourth indication information, and the target repetition factor is used for sending an uplink signal on the target uplink control resource.

Based on the communication method of the third aspect, one association information may be selected from the plurality of association information, and then the target repetition factor may be determined from the selected association information through the target uplink control resource. In this way, the third indication information selects the associated information, so that the target repetition factor can be selected from the repetition factors corresponding to the target uplink control resource, and the flexibility of the repetition factor indication can be improved, thereby improving the communication efficiency.

In addition, the third indication information indicates the association information, the repetition factor can be implicitly indicated by the uplink control resource indication information, the implicit indication of the repetition factor can be realized by the existing field, and a new field is not needed, so that extra resource expenditure is avoided, and the communication efficiency is further improved.

And the third indication information is used for selecting the associated information, and different associated information can be selected according to the channel condition, such as the associated information with large corresponding repetition factor when coverage is limited, and the associated information with small corresponding repetition factor when non-coverage is limited, so that flexibility is improved, and communication efficiency is further improved.

In summary, the communication method described in the third aspect can take account of resource overhead and flexibility, thereby improving communication efficiency.

In one possible design, the third indication information may be carried in one or more of downlink control information or medium access control-control cells, where the downlink control information includes one or more of modulation and coding scheme indication information, carrier indication information, antenna port indication information, or priority indication information. In this way, the existing field in the downlink control information can be used to indicate the associated information, so that extra resource overhead can be avoided, and the communication efficiency can be further improved. In addition, the modulation and coding scheme indication information of the media access control-control cell and the downlink control information is utilized to indicate the related information, so that the repetition factor can be indicated in a scene with non-coverage limitation, and the flexibility can be improved.

In a possible design, the terminal device obtains the third indication information, which may include that the terminal device receives the downlink control information. Wherein, the downlink control information is scrambled by the first RNTI. The terminal equipment acquires target association information corresponding to the first RNTI, wherein the plurality of candidate association information respectively correspond to different RNTI used for scrambling downlink control information. Therefore, the RNTI can be acquired according to the downlink control information, so that extra resource expenditure can be avoided, and the communication efficiency is further improved.

In one possible design, the candidate association information may relate to a set of uplink control resources or a format of an uplink channel. Thus, the association information can be determined according to different uplink control resource sets or formats of uplink channels. For example, the configuration of the repetition factor set related to the uplink control resource set or the format of the uplink channel can better adapt to different scenes, and the flexibility of transmitting the repetition factor is improved.

In a fourth aspect, a communication method is provided and applied to a network device, and the communication method includes determining a target uplink control resource and a target repetition factor. The target repetition factor is used for receiving the uplink signal on the target uplink control resource. The network device sends association information indicating information which is used for indicating the target association relation.

In one possible design, the association information indicator may be carried in downlink control information or medium access control-control cells.

In one possible design, the association information indication information may be downlink control information scrambled by the first RNTI, and the plurality of candidate association information are respectively applied to different RNTIs of the scrambled downlink control information.

The technical effects of the communication method described in the fourth aspect may refer to the technical effects of the communication method described in the third aspect, and are not described herein.

In a fifth aspect, a communication method includes a terminal device receiving fifth indication information. Wherein the fifth indication information is carried in one or more of downlink control information or medium access control-control cells. The fifth indication information corresponds to a repetition factor. And the terminal equipment determines a target repetition factor according to the fifth indication information. The target repetition factor is used for sending an uplink signal on the target uplink control resource.

Based on the communication method of the fifth aspect, the target repetition factor may be indicated based on downlink control information or a medium access control-control cell, wherein one repetition factor may correspond to a different repetition factor. Therefore, different repetition factors can be indicated according to the downlink control information or the media access control-control information element, so that the indication of the repetition factors is flexibly realized, and the communication efficiency can be improved. In addition, the repetition factor is indicated by the existing field, so that additional resource overhead can be avoided, and the communication efficiency can be improved. In addition, based on the downlink control information or the media access control-control information element indication target repetition factor, implicit indication of the repetition factor can be realized, for example, the repetition factor can be determined according to the MCS index, so that the indication of the repetition factor can be realized under different coverage conditions, the flexibility of the repetition factor indication is improved, and the communication efficiency is further improved.

In summary, the communication method according to the fifth aspect can improve flexibility and further improve communication efficiency.

In one possible design, the fifth indication information may include one or more of Modulation and Coding Scheme (MCS) indication information, carrier indication information, antenna port indication information, or priority indication information. Therefore, the indication of the repetition factor can be flexibly realized by utilizing the existing field of the downlink control information, and additional resource expenditure is not needed, so that the efficiency is improved.

Optionally, the modulation and coding scheme indication information is used to indicate an MCS index, and the repetition factor may be related to the MCS index and/or a modulation order corresponding to the MCS index. Therefore, the repetition factor can be indicated implicitly according to the MCS index indicated by the modulation and coding scheme indication information, and the repetition factor is indicated under different coverage conditions, such as coverage limitation or non-coverage limitation, so that the repetition factor is indicated flexibly, and the communication efficiency is further improved.

Further, the MCS index may include at least two intervals, each of the at least two intervals corresponding to a respective one of the repetition factors. Or the modulation order corresponding to the MCS index may include at least two intervals, each of the at least two intervals corresponding to a respective one of the repetition factors.

Or alternatively, the repetition factor may correspond to the number of modem reference signal ports. Further, the modem reference signal port number may include at least two intervals, each of the at least two intervals corresponding to a respective one of the repetition factors.

In a possible design, the method according to the fifth aspect may further include the terminal device determining, according to the fifth indication information, a target repetition factor in the target repetition factor set.

In a possible design, the method of the fifth aspect may further include the terminal device receiving sixth indication information. The sixth indication information is used for indicating the target repetition factor set. The target set of repetition factors is one of a plurality of candidate sets of repetition factors.

Optionally, the method of the fifth aspect may further include the terminal device receiving seventh indication information. Wherein the seventh indication information is used for indicating a plurality of candidate repetition factor sets.

Optionally, the candidate set of repetition factors is related to a set of uplink control resources or a format of an uplink channel.

In a sixth aspect, a communication method is provided and applied to a network device, where the communication method includes determining a target uplink control resource and a target repetition factor. The target repetition factor is used for receiving the uplink signal on the target uplink control resource. Fifth indication information is transmitted. Wherein the fifth indication information is carried in one or more of downlink control information or medium access control-control information element, and the fifth indication information corresponds to the repetition factor.

In one possible design, the fifth indication information may include one or more of Modulation and Coding Scheme (MCS) indication information, carrier indication information, antenna port indication information, or priority indication information.

In a possible implementation manner, the communication method according to the sixth aspect may further include sending sixth indication information. The sixth indication information is used for indicating a target repetition factor set where the target repetition factor is located, and the target repetition factor set is one of a plurality of candidate repetition factor sets.

Further, the communication method according to the sixth aspect may further include transmitting sixth indication information. The sixth indication information is used for indicating a plurality of candidate repetition factor sets.

Further, the technical effects of the communication method described in the sixth aspect may refer to the technical effects of the communication method described in the fifth aspect, and will not be described herein.

In a seventh aspect, a communication method is provided, where the communication method includes a terminal device receiving downlink control information. Wherein, the downlink control information is scrambled by the second RNTI. And acquiring a target repetition factor corresponding to the second RNTI. Wherein, RNTIs used for scrambling downlink control information respectively correspond to different repetition factors. The target repetition factor is used to transmit the uplink signal on the target uplink control resource.

According to the communication method based on the seventh aspect, the repetition factors can be indicated through different RNTI, so that a field is not required to be added newly, extra resource expenditure is avoided, different RNTI are corresponding to different repetition factors, flexible indication of the repetition factors can be achieved, and further communication efficiency is improved. Furthermore, the repetition factor can be indicated under different coverage conditions, and the indication of the repetition factor is more flexible. In summary, the communication method of the seventh aspect may compromise resource overhead and flexibility.

In a possible design, the communication method according to the seventh aspect may further include determining, by the terminal device, the target repetition factor in the target repetition factor set according to the eighth indication information.

In a possible design, the communication method according to the seventh aspect may further include the terminal device receiving ninth indication information. Wherein the ninth indication information is used for indicating the target repetition factor set. The target set of repetition factors is one of a plurality of candidate sets of repetition factors.

Optionally, the communication method according to the seventh aspect may further include the terminal device receiving tenth indication information. Wherein the tenth indication information is used for indicating a plurality of candidate repetition factor sets.

Further, the technical effects of the communication method described in the seventh aspect may refer to the technical effects of the communication method described in the third aspect, and are not described herein.

In an eighth aspect, a communication method is provided that includes a network device determining a target uplink control resource and a target repetition factor. The target repetition factor is used for receiving the uplink signal on the target uplink control resource. And sending the first downlink control information. The first downlink control information is scrambled through the second RNTI, and different RNTIs used for scrambling the downlink control information correspond to different repetition factors respectively.

Further, the technical effects of the communication method described in the eighth aspect may refer to the technical effects of the communication method described in the seventh aspect, and are not described herein.

In a ninth aspect, a communication apparatus is provided that includes an acquisition module and a determination module. And the acquisition module is used for acquiring the first index. And the determining module is used for determining the target uplink control resource and the target repetition factor corresponding to the first index according to the first mapping relation. In the first mapping relation, one index corresponds to one repetition factor and one uplink control resource, and the target repetition factor is used for sending uplink signals on the target uplink control resource.

In one possible embodiment, the acquisition module may be configured to acquire configuration information. The configuration information may include the number of uplink control resources, the number of repetition factors corresponding to the first mapping relationship, the first uplink resource index indication information, the total number of control channel elements CCEs in the downlink control resource set CORESET, and the first resource index. The determining module may be further configured to determine the first index according to the configuration information.

In one possible design, the first index may satisfy the following relationship: Wherein r _re,rep is a first index, N _CCE,p is the total number of CCEs in the downlink control resource set, N _CCE,p is the first resource index, N _CCE,p/N_CCE,p＜1,R_re,rep is the product of the number of repetition factors and the number of uplink control resources, and Δ _PRI is the value of the first uplink resource index indication information.

In one possible embodiment, the first index may satisfy one of the following relationships: Or alternatively, the first and second heat exchangers may be, Wherein R _re,rep is a first index, N _CCE,p is the total number of CCEs in the downlink control resource set, N _CCE,p is the first resource index, N _CCE,p/N_CCE,p＜1,R_PUCCH is 0-N _CCE,p/N_CCE,p＜1,R_PUCCH is the number of uplink control resources, R _re,rep is the product of the number of repetition factors and the number of uplink control resources, and Δ _PRI is the value of the first uplink resource index indication information.

In one possible design, the obtaining module may be further configured to obtain the first indication information. The first indication information is used for indicating a first repetition factor set, and the first repetition factor set is one of a plurality of repetition factor sets. And determining a first mapping relation according to the first repetition factor set and the uplink control resource set.

Further, the acquisition module may be further configured to receive the second indication information. Wherein the second indication information is used for indicating a plurality of repetition factor sets.

Alternatively, the acquisition module may include a receiving module and a transmitting module. Wherein the transceiver module is configured to implement a transmitting function and a receiving function of the communication device according to the ninth aspect. The transmitting module and the receiving module may also be integrated into one module, such as a transceiver module.

Optionally, the communication device according to the ninth aspect may further include a storage module, where the storage module stores a program or instructions. The program or instructions, when executed by the processing module, enable the communication device to perform the communication method of the first aspect.

The communication apparatus according to the ninth aspect may be a terminal device or a network device, or may be a chip (system) or other components or assemblies that may be disposed in the terminal device or the network device, or may be an apparatus including the terminal device or the network device, which is not limited in this aspect of the present application.

Further, the technical effects of the communication method described in the ninth aspect may refer to the technical effects of the communication method described in the first aspect, and are not described herein.

In a tenth aspect, a communication device is provided that includes a processing module and a transceiver module. And the processing module is used for determining the target uplink control resource and the target repetition factor. The target repetition factor is used for receiving the uplink signal on the target uplink control resource. And the transceiver module is used for transmitting the first information. The first information includes an uplink control resource number, a repetition factor number, first uplink resource index indication information, a total number of control channel elements CCEs in the downlink control resource set CORESET, and a first resource index.

In one possible embodiment, the target repetition factor is determined from the first set of repetition factors. The transceiver module is further used for sending the first indication information. The first indication information is used for indicating a first repetition factor set, and the first repetition factor set is one of a plurality of repetition factor sets.

Optionally, the transceiver module may be further configured to send the second indication information. Wherein the second indication information is used for indicating a plurality of repetition factor sets.

Alternatively, the transceiver module may include a receiving module and a transmitting module. Wherein, the transceiver module is used for realizing the sending function and the receiving function of the communication device according to the fifth aspect.

Optionally, the communication device according to the tenth aspect may further include a storage module, where the storage module stores a program or instructions. The program or instructions, when executed by the processing module, enable the communication device to perform the communication method of the third aspect.

The communication apparatus according to the tenth aspect may be a terminal device or a network device, or may be a chip (system) or other components or assemblies that may be provided in the terminal device or the network device, or may be an apparatus including the terminal device or the network device, which is not limited in this aspect of the present application.

Further, the technical effects of the communication method described in the tenth aspect may refer to the technical effects of the communication method described in the first aspect, and will not be described herein.

In an eleventh aspect, a communication apparatus is provided. The communication device is configured to perform the communication method described in any implementation manner of the first aspect to the eighth aspect.

In the present application, the communication apparatus according to the eleventh aspect may be the terminal device according to any one of the first aspect, the third aspect, the fifth aspect, or the seventh aspect, or the network device according to any one of the second aspect, the fourth aspect, the sixth aspect, or the eighth aspect, or may be provided on a chip (system) or other parts or components of the terminal device or the network device, or an apparatus including the terminal device or the network device.

It should be understood that the communication apparatus according to the eleventh aspect includes a corresponding module, unit, or means (means) for implementing the communication method according to any one of the first to eighth aspects, where the module, unit, or means may be implemented by hardware, software, or implemented by hardware executing corresponding software. The hardware or software comprises one or more modules or units for performing the functions involved in the communication methods described above.

Further, the technical effects of the communication apparatus according to the eleventh aspect may refer to the technical effects of the communication method according to any one of the first to eighth aspects, and are not described herein.

In a twelfth aspect, a communication device is provided. The communication device comprises a processor for executing the communication method according to any one of the possible implementation manners of the first aspect to the eighth aspect.

In one possible configuration, the communication device according to the twelfth aspect may further comprise a transceiver. The transceiver may be a transceiver circuit or an interface circuit. The transceiver may be for use in a communications device according to the twelfth aspect to communicate with other communications devices.

In one possible configuration, the communication device according to the twelfth aspect may further comprise a memory. The memory may be integral with the processor or may be separate. The memory may be used for storing computer programs and/or data related to the communication method according to any one of the first to eighth aspects.

In the present application, the communication apparatus according to the twelfth aspect may be the terminal device according to the first aspect, the third aspect, the fifth aspect, or the seventh aspect, or the network device according to the second aspect, the fourth aspect, the sixth aspect, or the eighth aspect, or may be provided on a chip (system) or other parts or components of the terminal device or the network device, or an apparatus including the terminal device or the network device.

Further, the technical effects of the communication apparatus according to the twelfth aspect may refer to the technical effects of the communication method according to any one of the implementation manners of the first aspect to the eighth aspect, which are not described herein.

In a thirteenth aspect, a communication device is provided. The communication device comprises a processor coupled to the memory for executing a computer program stored in the memory for causing the communication device to perform the communication method according to any one of the possible implementation manners of the first to eighth aspects.

In one possible implementation form, the communication device according to the thirteenth aspect may further comprise a transceiver. The transceiver may be a transceiver circuit or an interface circuit. The transceiver may be for use in a communication device according to the thirteenth aspect in communication with other communication devices.

In the present application, the communication apparatus according to the thirteenth aspect may be the terminal device according to the first aspect, the third aspect, the fifth aspect, or the seventh aspect, or the network device according to the second aspect, the fourth aspect, the sixth aspect, or the eighth aspect, or may be provided on a chip (system) or other parts or components of the terminal device or the network device, or an apparatus including the terminal device or the network device.

Further, the technical effects of the communication apparatus according to the thirteenth aspect may refer to the technical effects of the communication method according to any implementation manner of the first aspect to the eighth aspect, and are not described herein.

In a fourteenth aspect, there is provided a communication apparatus comprising a processor and a memory, the memory being for storing a computer program which, when executed by the processor, causes the communication apparatus to perform the communication method of any one of the implementations of the first to eighth aspects.

In one possible configuration, the communication device according to the fourteenth aspect may further comprise a transceiver. The transceiver may be a transceiver circuit or an interface circuit. The transceiver may be for use in a communication device according to the fourteenth aspect to communicate with other communication devices.

In the present application, the communication apparatus according to the fourteenth aspect may be the terminal device according to the first aspect, the third aspect, the fifth aspect, or the seventh aspect, or the network device according to the second aspect, the fourth aspect, the sixth aspect, or the eighth aspect, or may be provided on a chip (system) or other parts or components of the terminal device or the network device, or an apparatus including the terminal device or the network device.

Further, the technical effects of the communication apparatus according to the fourteenth aspect may refer to the technical effects of the communication method according to any one of the implementation manners of the first aspect to the eighth aspect, and are not described herein.

In a fifteenth aspect, there is provided a communication device comprising a processor for executing the communication method according to any one of the implementation forms of the first to eighth aspects according to a computer program in a memory after being coupled to the memory and reading the computer program in the memory.

In one possible configuration, the communication device according to the fifteenth aspect may further comprise a transceiver. The transceiver may be a transceiver circuit or an interface circuit. The transceiver may be for use in a communications device according to the fifteenth aspect to communicate with other communications devices.

In the present application, the communication apparatus according to the fifteenth aspect may be the terminal device according to the first aspect, the third aspect, the fifth aspect, or the seventh aspect, or the network device according to the second aspect, the fourth aspect, the sixth aspect, or the eighth aspect, or may be provided on a chip (system) or other parts or components of the terminal device or the network device, or an apparatus including the terminal device or the network device.

In addition, the technical effects of the communication device described in the fifteenth aspect may refer to the technical effects of the communication method described in any implementation manner of the first aspect to the eighth aspect, which are not described herein.

In a sixteenth aspect, a processor is provided. Wherein the processor is configured to perform the communication method according to any one of the possible implementation manners of the first aspect to the eighth aspect.

A seventeenth aspect provides a communication system. The communication system includes one or more terminal devices, and one or more network devices.

In an eighteenth aspect, there is provided a computer readable storage medium comprising a computer program or instructions which, when run on a computer, cause the computer to perform the communication method according to any one of the possible implementation manners of the first to eighth aspects.

In a nineteenth aspect, there is provided a computer program product comprising a computer program or instructions which, when run on a computer, cause the computer to perform the communication method according to any one of the possible implementation manners of the first to eighth aspects.

Drawings

Fig. 1 is a schematic diagram of a communication system according to an embodiment of the present application;

Fig. 2 is a schematic flow chart of a communication method according to an embodiment of the present application;

fig. 3 is a second schematic flow chart of a communication method according to an embodiment of the present application;

fig. 4 is a flowchart illustrating a third embodiment of a communication method according to the present application;

fig. 5 is a flow chart of a communication method according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of a communication device according to an embodiment of the present application;

Fig. 7 is a schematic structural diagram of a communication device according to an embodiment of the present application;

Fig. 8 is a schematic diagram of a communication device according to an embodiment of the present application.

Detailed Description

The technical terms of the embodiments of the present application will be described below:

A PUCCH resource indication (PUCCH resource indicator, PRI) is included in downlink control information (downlink control information, DCI) format 1_0, DCI format 1_1, DCI format 1_2 for scheduling a physical downlink shared channel (physical downlink SHARE CHANNEL, PDSCH), wherein the field in DCI format 1_0, DCI format 1_1 is 3 bits (bit), the field in DCI format 1_2 is 0 or 1 or 2 or 3 bits, the number of bits is indicated by a field "numberOfBitsForPUCCH-ResourceIndicatorDCI-1-2" in a higher layer parameter, and the number of bits is used to indicate a resource carried in PUCCH for carrying automatic retransmission request (hybrid automatic repeat request, HARQ) Acknowledgement (ACK) feedback corresponding to PDSCH carrying the DCI scheduling.

2. Modulation and coding scheme (modulation and coding scheme, MCS) modulation and coding strategy of the terminal device, rate configuration in the new air interface (NR) is achieved by means of a modulation and coding index (MCS index), the larger the modulation and coding index, the higher the corresponding modulation order and rate. The modulation coding index and the channel quality have the relationship that the better the channel environment is, the larger the modulation coding index is, and the worse the channel environment is, the smaller the modulation coding index is. Wherein the channel quality is related to a channel quality indication (channel quality indicator, CQI). The channel environment can be determined according to the signal-to-noise-and-interference ratio (signal to interference plus noise ratio, SINR), the higher the signal-to-noise-and-interference ratio is, the better the channel environment is, the channel capacity and the system throughput can be improved, and the lower the signal-to-noise-and-interference ratio is, the worse the channel environment is. For example, a higher signal-to-noise-and-interference ratio corresponds to a modulation code index that is larger than a lower signal-to-noise-and-interference ratio corresponds to a modulation code index. In communication, a rate table is formed by taking a factor affecting a rate and a modulation coding index in a modulation coding scheme as rows.

The technical scheme of the application will be described below with reference to the accompanying drawings.

The technical solution of the embodiment of the present application may be applied to various communication systems, such as a wireless fidelity (WIRELESS FIDELITY, wiFi) system, a vehicle-to-object (vehicle to everything, V2X) communication system, an inter-device (device-todevie, D2D) communication system, a vehicle networking communication system, a 4th generation (4th generation,4G) mobile communication system, such as a long term evolution (long term evolution, LTE) system, a worldwide interoperability for microwave access (worldwide interoperability for microwave access, wiMAX) communication system, a fifth generation (5th generation,5G) mobile communication system, such as a new radio, NR) system, and future communication systems, such as a sixth generation (6th generation,6G) mobile communication system, and the like.

The present application will present various aspects, embodiments, or features about a system that may include a plurality of devices, components, modules, etc. It is to be understood and appreciated that the various systems may include additional devices, components, modules, etc. and/or may not include all of the devices, components, modules etc. discussed in connection with the figures. Furthermore, combinations of these schemes may also be used.

In addition, in the embodiments of the present application, words such as "exemplary," "for example," and the like are used to indicate an example, instance, or illustration. Any embodiment or design described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, the term use of an example is intended to present concepts in a concrete fashion.

In the embodiment of the present application, "information", "signal", "message", "channel", and "signaling (singaling)" may be used in a mixed manner, and it should be noted that the meaning of the expression is consistent when the distinction is not emphasized. "of", "corresponding (corresponding, relevant)" and "corresponding (corresponding)" are sometimes used in combination, and it should be noted that the meaning of the expression is consistent when the distinction is not emphasized.

The network architecture and the service scenario described in the embodiments of the present application are for more clearly describing the technical solution of the embodiments of the present application, and do not constitute a limitation on the technical solution provided by the embodiments of the present application, and those skilled in the art can know that, with the evolution of the network architecture and the appearance of the new service scenario, the technical solution provided by the embodiments of the present application is applicable to similar technical problems.

To facilitate understanding of the embodiments of the present application, a communication system suitable for use in the embodiments of the present application will be described in detail with reference to the communication system shown in fig. 1. Fig. 1 is a schematic diagram of a communication system to which the communication method according to the embodiment of the present application is applicable.

As shown in fig. 1, the communication system includes a network device and a terminal device.

The network device is a device located at the network side of the communication system and having a wireless transceiver function or a chip system arranged on the device. The network device includes, but is not limited to, an Access Point (AP) in a wireless fidelity (WIRELESS FIDELITY, wiFi) system, such as a home gateway, router, server, switch, bridge, etc., an evolved Node B (eNB), a radio network controller (radio network controller, RNC), a Node B (Node B, NB), a base station controller (base station controller, BSC), a base transceiver station (base transceiver station, BTS), a home base station (e.g., home evolved NodeB, or home Node B, HNB), a baseband unit (BBU), a wireless relay Node, a wireless backhaul Node, a transmission point (transmission and reception point, TRP, or transmission point, TP), etc., a gNB in a new air interface (new, NR) system, or a transmission point (TRP, TP), one or a group of base stations (including multiple antenna panels) in a 5G system, or a network Node that forms a gNB or transmission point, such as a baseband unit (BBU), a distributed base station unit (rspad), a distributed unit (rspad), etc.

The terminal equipment is a terminal which is accessed into the communication system and has a wireless receiving and transmitting function or a chip system which can be arranged on the terminal. The terminal device may also be referred to as a user equipment, access terminal, subscriber unit, subscriber station, mobile station, remote terminal, mobile device, user terminal, wireless communication device, user agent, or user equipment. The terminal device in the embodiment of the present application may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal in industrial control (industrial control), a wireless terminal in unmanned (SELF DRIVING), a wireless terminal in remote medical (remote medical), a wireless terminal in smart grid (SMART GRID), a wireless terminal in transportation security (transportation safety), a wireless terminal in smart city (SMART CITY), a wireless terminal in smart home (smart home), a vehicle-mounted terminal, an RSU with a terminal function, or the like. The terminal device of the present application may be a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip, or a vehicle-mounted unit that is built in a vehicle as one or more components or units, and the vehicle may implement the communication method provided by the present application through the built-in vehicle-mounted module, vehicle-mounted component, vehicle-mounted chip, or vehicle-mounted unit.

It should be noted that, the communication method provided in the embodiment of the present application may be applicable to the communication between the terminal device and the network device shown in fig. 1, and specific implementation may refer to the following method embodiments, which are not described herein.

It should be noted that the solution in the embodiment of the present application may also be applied to other communication systems, and the corresponding names may also be replaced by names of corresponding functions in other communication systems.

It should be understood that fig. 1 is a simplified schematic diagram that is merely exemplary for ease of understanding, and that other network devices, and/or other terminal devices, may also be included in the communication system, which are not shown in fig. 1.

The communication method provided by the embodiment of the application will be specifically described with reference to fig. 2 to 8.

Fig. 2 is a schematic flow chart of a communication method according to an embodiment of the present application. The communication method may be applied to communication between the terminal device and the network device shown in fig. 1. As shown in fig. 2, the communication method includes the steps of:

s201, the network equipment determines a target uplink control resource and a target repetition factor.

The target repetition factor is used for receiving the uplink signal on the target uplink control resource.

For example, the target uplink control resource may be a resource for receiving an uplink signal, such as a physical uplink control channel PUCCH. The target repetition factor is a repetition factor corresponding to the uplink signal, and is used for indicating the number of times the uplink signal is transmitted on the target uplink control resource.

Specifically, the network device may determine the target uplink control resource and the target repetition factor according to the configured uplink control resource and the measured channel state and other factors.

S202, the network equipment sends first information, and the terminal equipment receives the first information.

The first information includes an uplink control resource number, a repetition factor number, first uplink resource index indication information, a total number of control channel elements (control CHANNEL ELEMENT) CCEs in the downlink control resource set CORESET, and a first resource index.

The number of uplink control resources may be, for example, the number of all uplink control resources in the uplink control resource set where the uplink control resources for transmitting the uplink signal are located. For example, if the uplink resource set 0 includes the uplink control resource 0 and the uplink control resource 7, the uplink control resource number is 8. For another example, if the uplink resource set 0 includes the uplink control resource 0 and the uplink control resource 15, the uplink control resource number is 16. The number of repetition factors may be the number of repetition factors in the first mapping relationship, and the number may be configured through RRC signaling. For example, if the repetition factor in the first mapping relationship has a repetition factor of "2" and a repetition factor of "4", the number of repetition factors is 2. The first uplink resource index indication information may be uplink control resource indication information (PUCCH resource indicator, PRI). The total number of control channel elements in the downlink control resource set may be the number of all control channel elements CCEs in the downlink control resource set. For example, if a total of 100 control channel elements are included in one downlink control resource set, the total number of control channel elements in the downlink control resource set is 100. The first resource index may be an index of a first CCE occupied by a physical downlink control channel.

S203, the terminal equipment acquires the first index.

The first index is one of a plurality of indexes (hereinafter, referred to as joint indexes for convenience of distinction), and the joint index is used for indicating uplink control resources and repetition factors. A joint index corresponds to an uplink control resource and a repetition factor. In other words, one uplink control resource and one repetition factor constitute one combination, and one joint index corresponds to one of the combinations.

It can be understood that, in the present application, a joint index corresponds to an uplink control resource and a repetition factor, and indicates that there is a correspondence between a joint index and indication information of a combination of the uplink control resource and the repetition factor. For example, a joint index corresponding to an uplink control resource and a repetition factor may include a joint index corresponding to a repetition factor value and an uplink control resource, or a joint index corresponding to a repetition factor value and an identification (e.g., index) of an uplink control resource, or a joint index corresponding to an index of a repetition factor and an identification (e.g., index) of an uplink control resource.

For ease of understanding, the following description will be given by taking an example in which the uplink control resources include resource 0 and resource 1, and the repetition factor includes repetition factor "2" and repetition factor "4". As shown in table 1, the joint index 0 indicates the resource 0 and the repetition factor 2, the joint index 1 indicates the resource 0 and the repetition factor 4, the joint index 2 indicates the resource 1 and the repetition factor 2, and the joint index 3 indicates the resource 1 and the repetition factor 4.

TABLE 1

Joint index	Uplink control resource	Repetition factor
			0	Resource 0	2
1	Resource 0	4
			2	Resource 1	2
3	Resource 1	4

Optionally, the first index satisfies the following relationship:

Wherein r _re,rep is a first index, N _CCE,p is the total number of CCEs in the downlink control resource set, N _CCE,p is the first resource index, N _CCE,p/N_CCE,p＜1,R_re,rep is the product of the number of repetition factors and the number of uplink control resources, and Δ _PRI is the value of the first uplink resource index indication information.

It should be noted that, the formula (1) may be a relationship that the first index satisfies when the number of uplink control resources is greater than or equal to the threshold of the number of uplink control resources, for example, the threshold is 8. At this time, the PRI is used to indicate the uplink control resource, and the number of state values indicated by the PRI is 8, that is, the number of values of Δ _PRI. Or formula (1) may be a relationship that the first index satisfies when the number of combinations of the uplink control resource and the repetition factor is greater than or equal to a combination threshold, such as 8. At this time, the PRI is used to indicate the combination of the uplink control resource and the repetition factor, and the number of state values indicated by the PRI is 8, that is, the number of values of Δ _PRI is 8. In the formula (1), the symbol which is less than or equal to the symbol can be a symbol which is less than or equal to the symbol, and the symbol which is greater than or equal to the symbol can be a symbol which is greater than or equal to the symbol.

Illustratively, the uplink control resource number threshold may be determined according to the number of possible values of PRI. For example, if the possible PRI has 8 values from 0 to 7, the threshold for the number of uplink control resources may be 8.

Taking the uplink control resource set including 16 uplink control resources and 4 repetition factors as an example, in the above formula (1), the mapping relationship between n _CCE,p/N_CCE,p、Δ_PRI and r _re,rep and the above is shown in the following table 2.

TABLE 2

Table 2 continuation

Or alternatively, the first index satisfies one of the following relationships:

Or alternatively

Wherein R _re,rep is a first index, N _CCE,p is the total number of CCEs in the downlink control resource set, N _CCE,p is the first resource index, N _CCE,p/N_CCE,p＜1,R_PUCCH is 0-N _CCE,p/N_CCE,p＜1,R_PUCCH is the number of uplink control resources, R _re,rep is the product of the number of repetition factors and the number of uplink control resources, and Δ _PRI is the value of the first uplink resource index indication information.

The formula (2) or the formula (3) may be a relationship that the first index satisfies when the number of uplink control resources is less than or equal to the uplink control resource number threshold, or the number of combinations of uplink control resources and repetition factors is less than or equal to the combination threshold. At this time, the number of the state values used for indicating the PRI is the same as the number of the uplink control resources, and is 8, that is, the number of the values of Δ _PRI is 8.

Or formula (2) and formula (3) may also be a relationship that the first index satisfies when the number of combinations of the uplink control resource and the repetition factor is less than or equal to a combination threshold, for example, the threshold is 8. At this time, the number of the state values used for the indication by the PRI is the same as the number of the uplink control resources, that is, the number of the values of Δ _PRI is the same as the number of the uplink control resources. If there are 4 uplink control resources, the possible values of the first uplink resource index indicating information PRI are 4, which may be "000", "001", "010", "011" and "100", respectively, and correspondingly, the possible values of Δ _PRI are "0", "1", "2", "3" and "4". For another example, if the number of uplink control resources is 5, the first uplink resource index indication information may be indicated by 3 bits, and the possible values of the first uplink resource index indication information PRI are "000", "001", "010", "011" and "100", and correspondingly, the possible values of Δ _PRI are "0", "1", "2", "3" and "4".

In the formula (2) and the formula (3), the symbol which is less than or equal to is also a symbol which is "<", and the symbol which is greater than or equal to is also a symbol which is more than or equal to ".

In the embodiment of the present application, when the number of uplink control resources is less than or equal to the threshold of the number of uplink control resources, or the number of combinations of uplink control resources and repetition factors is less than or equal to the threshold of the combination, the combination of the repetition factors and the uplink control resources may be indicated by PRI, that is, the joint index may be indicated by PRI. For example, when the number of combinations of the uplink control resource and the repetition factor is less than or equal to the combination threshold, the value of R _re,rep PRI is used to indicate the joint index, i.e., the value of the number of PRI combined by the uplink control resource and the repetition factor indicates the joint index.

Equation (3) may be a reduced equation of equation (2). For example, at R _re,rep＝R_PUCCH·R_repetition, the case of fΔ _PRI＜R_re,repmod R_PUCCH does not exist and equation (2) is simplified to yield equation (3).

It can be understood that the implementation principle of the uplink control resource number threshold is similar to that of the uplink control resource threshold in formula 1, and will not be described herein.

The following uplink control resource set includes 4 uplink control resources, and 4 repetition factors are exemplified, and in the above formula (2) or formula (3), the mapping relationship between n _CCE,p/N_CCE,p、Δ_PRI and r _re,rep is shown in the following table 3.

TABLE 3 Table 3

Or alternatively, the first index satisfies the following relationship:

Wherein r _re,rep is a first index, N _CCE,p is the number of CCEs in the downlink control resource set, N _CCE,p is the first resource index, N _CCE,p/N_CCE,p＜1,R_repetition is 0-N _CCE,p/N_CCE,p＜1,R_repetition is the number of repetition factors, and Δ _PRI is the value of the first uplink resource index indication information.

It should be noted that, the formula (4) may be a relationship that the first index satisfies when the number of uplink control resources is less than or equal to the threshold of the number of uplink control resources, for example, the threshold is 8. At this time, the number of state values used for indicating the PRI is the same as the number of uplink control resources, and is 8, that is, the number of values of Δ _PRI.

Or formula (4) may also be a relationship that the first index satisfies when the number of combinations of the uplink control resource and the repetition factor is less than or equal to a combination threshold, for example, the threshold is 8. At this time, the PRI is used to indicate the combination of the uplink control resources and the repetition factor, and the number of the state values used for the PRI is the same as the number of the uplink control resources, that is, the number of the values of Δ _PRI is the same as the number of the uplink control resources. Regarding the implementation of the value of Δ _PRI in the formula (4), reference may be made to the implementation manner of Δ _PRI in the above formula (2) and formula (3), which is not described herein.

In the formula (4), the symbol which is less than or equal to the symbol can be a symbol which is less than or equal to the symbol, and the symbol which is greater than or equal to the symbol can be a symbol which is greater than or equal to the symbol.

Equation (4) may be a reduced equation of equation (2) or equation (3). For example, at R _re,rep＝R_PUCCH·R_repetition, the case of Δ _PRI＜R_re,repmod R_pUCCH does not exist, and equation (2) or equation (3) is simplified to yield equation (4).

Taking the uplink control resource set including 4 uplink control resources and 4 repetition factors as an example, in the above formula (4), the mapping relationship between n _CCE,p/N_CCE,p、Δ_PRI and r _re,rep may be referred to as shown in the above table 3.

Or alternatively, the first index satisfies the following relationship:

Taking the uplink control resource set including 16 uplink control resources and 4 repetition factors as an example, in the above formula (5), the mapping relationship between n _CCE,p/N_CCE,p、Δ_PRI、r_re,rep and n _CCE,p/N_CCE,p、Δ_PRI、r_re,rep is shown in table 4.

TABLE 4 Table 4

Table 4 continuation

Taking the uplink control resource set including 4 uplink control resources and 4 repetition factors as an example, in the above formula (6) or formula (7), the mapping relationship between n _CCE,p/N_CCE,p、Δ_PRI and r _re,rep is shown in the following table 5.

TABLE 5

Or alternatively, the first index satisfies the following relationship:

Wherein R _re,rep is a first index, N _CCE,p is the total number of CCEs in the downlink control resource set, N _CCE,p is a first resource index, N _CCE,p/N_CCE,p＜1,R_repetition is 0-N _CCE,p/N_CCE,p＜1,R_repetition, R _PUCCH is the number of uplink control resources, R _re,rep is the product of the number of repetition factors and the number of uplink control resources, and Δ _PRI is the value of the first uplink resource index indication information.

It should be noted that, the formula (6) may be a simplified formula of the formula (5). For example, when R _PUCCH is less than or equal to 8,Alternatively, R _repetition, equation (6) is reduced to equation (5).

Taking the uplink control resource set including 16 uplink control resources and 4 repetition factors as an example, according to the above formula (6) or the above formula (7), the mapping relationship between n _CCE,p/N_CCE,p、Δ_PRI and r _re,rep may be shown by referring to the above table 4, which is not described herein.

Taking the uplink control resource set including 8 uplink control resources and 4 repetition factors as an example, in the above formula (6), the mapping relationship between n _CCE,p/N_CCE,p、Δ_PRI and r _re,rep may be referred to as shown in the above table 3.

Or alternatively, the first index satisfies the following relationship:

Taking the uplink control resource set including 16 uplink control resources and 4 repetition factors as an example, the mapping relationship between n _CCE,p/N_CCE,p、Δ_PRI、r_re,rep and n _CCE,p/N_CCE,p、Δ_PRI、r_re,rep in the above formula (7) may be shown by referring to the above table 2, which is not described herein. Taking the uplink control resource set including 8 uplink control resources and 4 repetition factors as an example, in the above formula (7), the mapping relationship between n _CCE,p/N_CCE,p、Δ_PRI and r _re,rep is shown in the above table 3.

Or alternatively, the first index satisfies the following relationship:

Any one of the formulas (5) to (8) may be a relation that the first index satisfies when the number of uplink control resources is greater than 8, equal to 8, or less than 8. The first index may be a relationship satisfied when the number of combinations of the uplink control resource and the repetition factor is greater than 8, equal to 8, or less than 8.

In any one of the formulas (5) to (8), the "++symbol may be a" < "symbol, and the" > "symbol may be a" ++symbol.

It should be noted that, the formula (8) may be a simplified formula of the formula (7). For example, when R _PUCCH is less than or equal to 8,Alternatively, R _repetition, equation (8) is reduced to equation (7).

Taking the uplink control resource set including 16 uplink control resources and 4 repetition factors as an example, according to the above formula (5), the mapping relationship between n _CCE,p/N_CCE,p、Δ_PRI and r _re,rep may be determined by referring to the above table 2, which is not described herein. Taking the uplink control resource set including 8 uplink control resources and 4 repetition factors as an example, in the above formula (7), the mapping relationship between n _CCE,p/N_CCE,p、Δ_PRI and r _re,rep is shown in the above table 3.

In the embodiment of the present application, if the number of uplink control resources is less than 8 and the resource value is indicated by the PRI, the value of the first uplink resource index indication information is identical to the number of uplink control resources to be indicated. For example, if the number of uplink control resources is 5, the first uplink resource index indicating information may be indicated by 3 bits, and the possible values of the first uplink resource index indicating information PRI are "000", "001", "010", "011" and "100", and correspondingly, the possible values of Δ _PRI are "0", "1", "2", "3" and "4".

If the number of combinations of the uplink control resource and the repetition factor is greater than 8, 8 possible values of the PRI first uplink resource index indication information PRI are available. If the number of combinations of the uplink control resources and the repetition factors is less than 8, the number of possible values of the PRI first uplink resource index indicating information PRI is the same as the number of uplink control resources, and if there are 4 uplink control resources, the number of possible values of the first uplink resource index indicating information PRI is 4, and the possible values of the PRI first uplink resource index indicating information PRI may be "000", "001", "010", "011" and "100", respectively, and accordingly, the possible values of Δ _PRI are "0", "1", "2", "3" and "4".

For example, the target uplink control resource may be an uplink control resource for transmitting an uplink signal, such as a physical uplink control channel PUCCH. The target repetition factor is a repetition factor corresponding to the uplink signal, and is used for indicating the number of times the uplink signal is transmitted on the target uplink control resource.

Therefore, different joint indexes can be determined through different combinations of PRI and first resource indexes, so that different repetition factors and flexible indication of uplink control resources can be realized, and the communication efficiency is further improved.

In a possible design, step S203, the terminal device obtains the first index, which may include step 1 and step 2.

Step 1, terminal equipment acquires configuration information.

The configuration information may include the number of uplink control resources, the number of repetition factors corresponding to the first mapping relationship, the first uplink resource index indication information, the total number of control channel elements CCEs in the downlink control resource set CORESET, and the first resource index.

The number of uplink control resources may be the number of uplink control resources in the uplink control resource set, for example. For example, if the uplink resource set 0 includes the uplink control resource 0 and the uplink control resource 7, the uplink control resource number is 8. For another example, if the uplink resource set 0 includes the uplink control resource 0 and the uplink control resource 15, the uplink control resource number is 16. The number of repetition factors may be the number of repetition factors in the first mapping relationship, and may be configured through RRC signaling. The first mapping relationship is determined according to the repetition factor set and the resource set. For example, if the repetition factor in the first mapping relationship has a repetition factor of "2" and a repetition factor of "4", the number of repetition factors is 2.

The first uplink resource index indication information may be uplink control resource indication information (PUCCH resource indicator, PRI). In different DCIs, PRI may be 3 bits or 0 bits to 3 bits. The first uplink resource index indication information may also be timing indication information, which may be a timing indication (PDSCH-to-harq_ feedback timing indicator) field of a physical downlink shared channel (physical downlink SHARED CHANNEL, PDSCH) to HARQ feedback in DCI. May be used to instruct the terminal device to transmit acknowledgement information such as an Acknowledgement (ACK) or a negative acknowledgement (negative acknowledgement, NACK). In the hybrid automatic repeat request (hybrid automatic repeat request, HARQ) mechanism, ACK, NACK are collectively referred to as HARQ-ACK information. For example, the HARQ-ACK information in DCI format1_0, DCI format1_1, DCI format1_2 is 3 bits, 0 to 3 bits, respectively.

The total number of control channel elements in the downlink control resource set may be the number of all control channel elements in the downlink control resource set. For example, if a total of 100 control channel elements are included in one downlink control resource set, the total number of control channel elements in the downlink control resource set is 100. The first resource index may be an index of a first CCE occupied by a physical downlink control channel.

The index (may be an index value) of the first CCE occupied by the physical downlink control channel and the aggregation level (may be a value of an aggregation level) of the downlink channel are modulo 0.

And step 2, determining a first index according to the configuration information.

Specifically, the terminal device determining the first index according to the configuration information may include the terminal device determining the first index according to one of the formulas (1) to (8).

Specifically, if the number of uplink control resources is greater than the threshold of the number of uplink control resources, or the number of combinations of uplink control resources and repetition factors is greater than the threshold of the combination, the terminal device may determine the first index according to formula (1). It should be noted that, if the number of uplink control resources is equal to the threshold of the number of uplink control resources, or the number of combinations of uplink control resources and repetition factors is equal to the threshold of the combination, the terminal device may determine the first index according to the formula (1) as well. Or if the number of uplink control resources is less than or equal to the uplink control resource number threshold, or the number of combinations of uplink control resources and repetition factors is less than or equal to the combination threshold, the terminal device may determine the first index according to one of the following formulas (2), (3), or (4). Or the terminal device determines the first index according to one of the following multiple terms, equation (5), equation (6), equation (7) and equation (8).

It should be noted that, in the embodiment of the present application, the formulas (1) to (8) are only used as examples, and other manners may be adopted to obtain the first index when the embodiment is implemented. For example, the first index may be obtained according to the mapping relationship between n _CCE,p/N_CCE,p、Δ_PRI and r _re,rep as in tables 2 to 5.

S204, the terminal equipment determines a target uplink control resource and a target repetition factor corresponding to the first index according to the first mapping relation.

In the first mapping relationship, one joint index corresponds to one repetition factor and one uplink control resource. The target repetition factor is used to transmit the uplink signal on the target uplink control resource.

Illustratively, a joint index corresponds to a repetition factor and an uplink control resource, that is, an uplink control resource and a repetition factor together correspond to a joint index.

The first mapping relationship may be a mapping relationship between a repetition factor in the first repetition factor set and an uplink control resource in the uplink control resource set. The following description will be given by taking the example that the uplink control resources include resource 0 and resource 1, and the repetition factors include repetition factor "2" and repetition factor "4".

As shown in table 1 above, the joint index 0 corresponds to the resource 0 and the repetition factor 2, the joint index 1 corresponds to the resource 0 and the repetition factor 4, the joint index 2 corresponds to the resource 0 and the repetition factor 2, and the joint index 3 corresponds to the resource 0 and the repetition factor 4.

It should be noted that, in some possible designs, one joint index may also correspond to one repetition factor index and one uplink control resource index in the first mapping relationship.

Taking the example that the uplink control resources include resource 0 and resource 1, and the repetition factors include repetition factor "2" and repetition factor "4". The indexes of the resource 0 and the resource 1 are the resource index 0 and the resource index 1 in sequence. The index of the repetition factor "2" is the repetition factor 0, and the index of the repetition factor "4" is the repetition factor 1, and the mapping relation table of the joint index, the repetition factor index and the uplink control resource index is shown in the following table 6.

TABLE 6

Joint index	Uplink control resource index	Repetition factor index
			0	Resource 0	Repetition factor 0
1	Resource 0	Repetition factor 1
			2	Resource 1	Repetition factor 0
3	Resource 1	Repetition factor 1

In one possible design of the embodiment of the present application, the communication method shown in fig. 2 may further include the network device sending downlink control information or a medium access control-control cell to the terminal device. The terminal equipment acquires the first indication information.

The first indication information is used for indicating a first repetition factor set, and the first repetition factor set is one of a plurality of repetition factor sets.

Optionally, the terminal device obtains the first indication information, which may include that the terminal device receives downlink control information or a medium access control-control cell, to obtain the first indication information. In other words, the first indication information may be carried in downlink control information or medium access control-control cells.

For example, the first indication information may be used to indicate the first set of repetition factors. The first set of repetition factors may be a set of all repetition factors in the first mapping relation.

The first indication information may be carried in the downlink control information. For example, the first indication information may be carried in one or more of modulation and coding scheme indication information, carrier indication information, antenna port indication information, or priority indication information of the downlink control information. Modulation and coding scheme indication information may also be referred to as a modulation and coding (modulation and coding scheme) field (field), carrier indication information may also be referred to as a carrier indication (carrier indicator) field, antenna port indication information may also be referred to as an Antenna port(s) field, and priority indication information may also be referred to as a priority indication (priority indicator) field.

It may be appreciated that the first indication information may also be a field newly added in the downlink control information.

Specifically, the first indication information may include bits in one or more fields of the downlink control information, and the first indication information may also be carried in a medium access control-control cell, or the first indication information may be carried in a field of the downlink control information and in the medium access control-control cell. For example, if the repetition factor set includes 2, only 1 bit is needed to indicate the repetition factor, and the first indication information may be carried in one field of the downlink control information or in the medium access control-control cell.

If the repetition factor includes 4, 2 bits are required for indication, 1 bit of the first indication information may be carried in the field of the downlink control information, and another bit may be carried in the mac-control cell. Or the 2 bits of the first indication information are all carried in the field of the downlink control information. Or 2 bits of the first indication information may be carried in the medium access control-control cell.

It should be noted that, if a part of fields in the downlink control information is not available for carrying bits of the first indication information, corresponding bits may be carried by other fields of the downlink control information. For example, when coverage is limited, the first indication information may be carried on carrier indication information, antenna port indication information, or priority indication information. For another example, the first indication information may be carried in other information than carrier indication information, such as modulation and coding scheme indication information, when non-coverage is limited. The specific indication can be indicated by the most significant bit or the least significant bit of the corresponding information, or can be indicated by the state value of the corresponding information. For example, in 3bits of information, the state value may be "111", "110".

In addition, the first indication information may be indicated implicitly or by displaying an indication. For example, the first set of repetition factors may be implicitly indicated by the modulation and coding scheme indication information. For example, the first set of repetition factors may be determined according to an interval in which the MCS index is located. If the MCS index is large, e.g., the MCS index is one of MCS index 17 through MCS index 28, then a corresponding small set of repetition factors, e.g., {1,2}. If the MCS index is small, e.g., the MCS index is one of MCS index 0 through MCS index 16, a correspondingly large set of repetition factors, e.g., {4,8}.

The first indication information may be a combination of a display indication and an implicit indication. For example, when the first indication information is implemented by two bits, one bit of the first indication information may be indicated by means of display indication, and the other bit of the first indication information may be indicated by means of implicit indication.

Or alternatively, the terminal device receives the downlink control information, and obtains a radio network temporary identifier (radio network temporary identifier, RNTI) that scrambles the downlink control information from the downlink control information, to obtain the first indication information. In other words, the first indication information is an RNTI that scrambles the downlink control information. Specifically, when two repetition factor sets are configured, the first indication information may be 1 bit.

In the embodiment of the present application, the first repetition factor set of the terminal device may also be determined according to a modulation and coding scheme index table (MCS index table). For example, if the target code rate or the target modulation order corresponding to the modulation and coding scheme index table (MCS index table) configured at the terminal device side is low, the first repetition factor set may be determined to be a larger repetition factor set, such as the repetition factors {4,8}. For another example, if the target code rate or the target modulation order corresponding to the modulation and coding scheme index table (MCS index table) configured at the terminal device side is high, the first repetition factor set may be determined to be a smaller repetition factor set, for example, the repetition factors {1,2}.

It should be noted that, in the embodiment of the present application, the repetition factor set may also be determined by a protocol. It will be appreciated that in embodiments of the present application, there may be only one repetition factor set. At this time, the repetition factor set is the first repetition factor set. The repetition factor set may be configured by RRC signaling or determined by a protocol when it is one.

After the terminal equipment acquires the first indication information, the terminal equipment determines a first mapping relation according to the first repetition factor set and the uplink control resource set.

In this manner, one repetition factor set may be selected from the plurality of repetition factor sets, and the first mapping relationship may be determined according to the selected repetition factor set. For example, the repetition factor set can be selected according to the scene, so that the indication of the repetition factor can be more flexible, and the communication efficiency is further improved.

Further, the communication method shown in fig. 2 may further include that the network device transmits the second indication information, and the terminal device receives the second indication information. Wherein the second indication information is used for indicating a plurality of repetition factor sets. In other words, the network device may configure the terminal device with a plurality of sets of repetition factors by transmitting the second indication information.

The second indication information may be a radio resource control (radio resource control, RRC) message, for example.

In this manner, different sets of repetition factors may be dynamically configured. For example, the repetition factor set may be configured according to a scenario, so that the indication of the repetition factor is more flexible, thereby further improving communication efficiency.

The following describes how to determine the first mapping relation in combination with the first or second embodiment.

In the first mode, the joint index is determined according to the ascending order of the repetition factor indexes, and then the joint index is determined according to the ascending order of the uplink control resource indexes. For ease of understanding, the following detailed description is provided in connection with examples.

The uplink control resources in one uplink control resource set comprise resources 0 to 15, and the repetition factor set comprises repetition factors which are sequentially corresponding to the repetition factors 0 to 3, namely '1', '2', '4', and '8'. The correspondence between the uplink control resource and the repetition factor is shown in table 7. Each of the uplink control resources 0 to 15 corresponds to 4 repetition factors.

TABLE 7

Uplink control resource	Repetition factor 0	Repetition factor 1	Repetition factor 2	Repetition factor 3
					Resource 0	1	2	3	4
Resource 1	1	2	3	4
					Resource 2	1	2	3	4
Resource 3	1	2	3	4
					Resource 4	1	2	3	4
Resource 5	1	2	3	4
					Resource 6	1	2	3	4
Resource 7	1	2	3	4
					Resource 8	1	2	3	4
Resource 9	1	2	3	4
					Resource 10	1	2	3	4
Resource 11	1	2	3	4
					Resource 12	1	2	3	4
Resource 13	1	2	3	4
					Resource 14	1	2	3	4
Resource 15	1	2	3	4

When the first mapping relation is determined, first, from left to right, the joint indexes of the resource 0 corresponding to the combinations of the repetition factors are determined, then, from left to right, the joint indexes of the resource 1 corresponding to the combinations of the repetition factors are determined, and the combination index of the resource 15 and the combination of the repetition factor 4 is determined.

The mapping relationship among the uplink control resources, the repetition factor, and the joint index in fig. 7 is shown in table 8.

TABLE 8

And in a second mode, determining a joint index according to the ascending order of the uplink control resource indexes, and then determining the joint index according to the ascending order of the repetition factor indexes. For ease of understanding, the following detailed description is provided in connection with examples.

As shown in table 7, the uplink control resources in one uplink control resource set include resources 0 to 15, and the repetition factors include repetition factors "1", "2", "4" and "8". Each of resources 0 through 15 corresponds to 4 repetition factors. When the first mapping relationship is determined, first, from top to bottom, joint indexes of the repetition factor "1" corresponding to the combinations of the uplink control resources are determined, and then, from top to bottom, joint indexes of the repetition factor "2" corresponding to the combinations of the repetition factors are determined, and then, the first and second mapping relationships are established until joint indexes of the combinations of the repetition factor "4" and the resources 15 are determined. The mapping relationships among the repetition factor, the uplink control resource and the joint index are shown in table 9.

TABLE 9

It can be appreciated that in the embodiment of the present application, the first mapping relationship may also be determined in other manners, and the mapping relationship between the uplink control resource, the repetition factor and the joint index of the first mapping relationship is not limited to the examples shown in table 8 and table 9. For example, in table 9, repetition factor 8 and resource 14 may correspond to joint index 63 and repetition factor 8 and resource 15 may correspond to joint index 62.

In addition, tables 8 and 9 are only one example of the first mapping relationship, and in some possible embodiments, the mapping relationship may be implemented in other manners. For example, the first mapping relationship may also be implemented in the form of an array. When the first mapping relationship shown in table 9 is implemented using an array, the mapping relationship among the repetition factor 8, the resource 15, and the joint index 63 is {8,15,63}.

For example, the implementation of the target uplink control resource may refer to the implementation of the target uplink control resource in step S201, and the implementation of the target repetition factor may refer to the implementation of the target repetition factor in step S202, which is not described herein.

In an exemplary embodiment, if one joint index corresponds to one repetition factor and one uplink control resource in the first mapping relationship, the step S204 is that the terminal device determines, according to the first mapping relationship, the target uplink control resource and the target repetition factor corresponding to the first index, and may include that the terminal device determines the target uplink control resource and the target repetition factor from the mapping relationship of the joint index, the uplink control resource, and the repetition factor.

The first mapping relationship is illustrated in fig. 8 as an example. If the first index is the joint index 7, it may be determined that the target uplink control resource is resource 1 and the target repetition factor is "8".

In an exemplary embodiment, if in the first mapping relationship, one joint index corresponds to an index of a repetition factor and an index of an uplink control resource, in step S204, the terminal device determines, according to the first mapping relationship, a target uplink control resource and a target repetition factor corresponding to the first index, and may include step 3 and step 4.

And step 3, the terminal equipment determines the index of the target uplink control resource and the index of the target repetition factor according to the first index.

Optionally, if the first mapping relationship is determined according to the first mode, the index of the target uplink control resource and the index of the target repetition factor satisfy the following relationship:

rep_index=r_re,repmod R_repetition; (10)

Wherein re_index is the index of the target uplink control resource, rep_index is the index of the target repetition factor, R _repetition is the number of repetition factors, and R _re,rep is the joint index corresponding to the combination of the target uplink control resource and the target repetition factor.

Or alternatively, if the first mapping relationship is determined according to the second mode, the index of the target uplink control resource and the index of the target repetition factor satisfy the following relationship:

re_index=r_re,repmod R_PUCCH; (11)

Wherein re_index is the index of the target uplink control resource, rep_index is the index of the target repetition factor, R _PUCCH is the number of uplink control resources, and R _re,rep is the joint index corresponding to the combination of the target uplink control resource and the target repetition factor.

It should be noted that, in the embodiment of the present application, the formulas (9) to (12) are only used as examples, and other implementations may be adopted to obtain the index of the target repetition factor and the index of the target uplink control resource in the specific implementation.

And step 4, the terminal equipment determines the target uplink control resource and the target repetition factor according to the index of the target uplink control resource and the index of the target repetition factor.

Illustratively, if the index re_index of the target uplink control resource is "0", the target uplink control resource is resource 0. The index rep_index of the target repetition factor is "3", and the target repetition factor is a repetition factor of "4".

It may be understood that, in the embodiment of the present application, the target uplink control resource and the target repetition factor may also be determined according to the coordinates of the joint index. For example, after the indexes of the target uplink control resource and the target repetition factor are calculated according to the above formulas (9) and (10) or according to the above formulas (11) and (12), the coordinates of the first index are determined according to the indexes of the target uplink control resource and the target repetition factor. Specifically, the position coordinate of the target uplink control resource is re_index+1. The index of the target repetition factor is rep_index, and the position coordinate of the repetition factor is rep_index+1. Taking the repetition factor as the abscissa and the resource as the ordinate as an example, if the abscissa of the repetition factor 0 is 1, the abscissas of the repetition factors 0 to 3 are in turn from the abscissas "1" to the abscissas "4", and the abscissas of the resources 0 to 15 are in turn from the abscissas "1" to the abscissas "16". The position coordinates of the target repetition factor 0 to the target repetition factor 3 corresponding to the resources 0 to 15 are shown in table 10. If the index of the target uplink resource is "0" and the index of the target repetition factor is "2", it may be determined that the coordinates corresponding to the target uplink resource and the target repetition factor are (3, 1).

Table 10

In the embodiment of the application, the target repetition factor can be determined through the first index through the RRC signaling indication. In other words, in the embodiment of the present application, the repetition factor is determined by using the method shown in fig. 2, and may be controlled through RRC signaling.

Therefore, the same uplink control resource can correspond to a plurality of repetition factors, and the target repetition factor is determined from the repetition factors corresponding to the uplink control resource according to the index, so that the indication of the repetition factor is more flexible, for example, the repetition factor can be indicated according to the channel environment, and the communication efficiency is improved.

In addition, the repetition factor can be indicated under different conditions, such as coverage limited conditions or non-coverage limited conditions, through the index, so that the flexibility of the repetition factor indication can be improved, and the communication efficiency can be further improved.

In summary, the communication method shown in fig. 2 can give consideration to resource overhead and flexibility, thereby improving communication efficiency.

In the embodiment of the application, the repetition factor can be indicated according to the index of the first CCE occupied by the physical downlink control channel and the total number of the control channel elements CCE in the downlink control resource set. Wherein the index of the target repetition factor satisfies the following relationship:

Wherein rep_index is the index of target repetition factor, NCCE, p is the number of CCEs in the downlink control resource set, n _CCE,p is the first resource index, and 0≤n _CCE,p/N_CCE,p＜1,R_repetition is the number of repetition factors.

Specifically, the index of the repetition factor may be determined according to equation (13), and the repetition factor may be determined according to the index of the repetition factor.

In the embodiment of the application, the formulaIn order to make the round-up upwards,Is rounded downwards.

Fig. 3 is a second flowchart of a communication method according to an embodiment of the present application. The communication method may be applied to communication between the terminal device and the network device shown in fig. 1. The communication method shown in fig. 3 includes:

s301, the network equipment determines a target uplink control resource and a target repetition factor.

For the implementation of step S301, reference may be made to the implementation of step S201 in fig. 2, which is not described herein.

S302, the network device sends association information indication information.

Wherein the association information indication information is used for indicating the target association information. The association information indication information is carried in the downlink control information or the medium access control-control cell. Or the associated information indication information is downlink control information scrambled by the first RNTI.

For the implementation manner of the association indication information, reference may be made to the implementation manner of the first indication information, which is not described herein.

S303, the terminal equipment acquires the third indication information.

The third indication information is used for indicating target association information, the target association information is one of a plurality of candidate association information, and one candidate association information comprises a mapping relation between each uplink control resource and a repetition factor in one uplink control resource set.

In one possible design, the candidate association information may also be preconfigured by RRC or determined by the protocol.

In one possible design, the candidate association information may relate to a set of uplink control resources or a format (format) of an uplink channel, such as an uplink control channel PUCCH.

For example, uplink channel format 1 has a better link budget than uplink channel format 2 and a worse link budget than uplink channel format 2. Therefore, the repetition factor of the uplink control resource of the uplink channel format 1 can be smaller than that of the uplink control resource of the uplink channel format 2. Similarly, the repetition factor of the uplink control resource in the uplink channel format 3 may be smaller than the repetition factor of the uplink control resource in the uplink channel format 1. The uplink channel may be an uplink control channel PUCCH.

For another example, there is a correspondence between the set of uplink control resources and the uplink channel format, and the set of uplink control resources 0 is generally used for transmission of the uplink channel format 0 and the uplink channel format 1, so that the repetition factor corresponding to each uplink control resource in the association information can be determined according to the format of the uplink control resource.

Thus, the association information can be determined according to different uplink control resource sets or formats of uplink channels. For example, the configuration of the repetition factor related to the uplink control resource set or the format of the uplink channel can better adapt to different scenes, and the flexibility of transmitting the repetition factor is improved.

In the different candidate association information, the mapping relationship between the uplink control resource and the repetition factor is different.

Taking the example that the uplink control resource set includes resources 0 to 7, if the candidate association information 0 includes a repetition factor "1" and a repetition factor "2", the mapping relationship between the uplink control resource and the repetition factor is shown in table 11 below. If the candidate association information 1 includes the repetition factor "4" and the repetition factor "8", the mapping relationship between the uplink control resource and the repetition factor is shown in table 12 below.

TABLE 11

Uplink control resource	Repetition factor
		Resource 0	1
Resource 1	2
		Resource 2	1
Resource 3	2
		Resource 4	1
Resource 5	2
		Resource 6	1
Resource 7	2

Table 12

Uplink control resource	Repetition factor
		Resource 0	4
Resource 1	8
		Resource 2	4
Resource 3	8
		Resource 4	4
Resource 5	8
		Resource 6	4
Resource 7	8

In one possible design, the third indication information may be carried in one or more of downlink control information, or medium access control-control cells. The downlink control information includes one or more of modulation and coding scheme indication information, carrier indication information, antenna port indication information, or priority indication information.

The implementation of the downlink control information or the medium access control-control cell may correspond to the specific implementation of the downlink control information or the medium access control-control cell in the communication method corresponding to fig. 2, which is not described herein.

Specifically, in the embodiment of the present application, if there are two candidate association information, 1 bit is required to indicate the target association information, that is, the third indication information may be 1 bit. For example, when coverage is limited, the third indication information may be modulation and coding scheme indication information or 1 bit in a medium access control-control cell. Modulation and coding scheme indication information, carrier indication information, antenna port indication information, priority indication information, or 1 bit in a medium access control-control cell. Similarly, if there are 3 or more candidate association information, more than 2 bits are required to indicate target association information.

Illustratively, if MCS index table 3, it is determined that coverage is limited. Or if the antenna port indication information is determined. For example, if the antenna port indication information indicates the antenna port table by 4 bits, it can be determined that coverage is limited.

In the embodiment of the application, the associated information can be indicated by the state value of the antenna port indication information indicating that the number of ports is large. The association information may also be indicated by the most significant bit or the least significant bit in the antenna port indication information. The association information may also be indicated by a bit of the newly added antenna port indication information. For example, if the configured antenna port table is indicated by 4 bits, the antenna port indication information may be configured to 5 bits, thereby indicating the association information with 1 bit therein, or indicating the association information with a partial status value composed of 5 bits.

It will be appreciated that in the embodiment of the present application, the repetition factor is indicated using downlink control information and/or medium access control-control cells, and may also be configured by RRC signaling.

It should be noted that, in the embodiment of the present application, if the third indication information has a plurality of bits, each bit of the third indication information may include a bit in one or more existing fields in the downlink control information, or may further include a plurality of bits in the medium access control-control cell, or the third indication information may further include a bit in one or more existing fields in the downlink control information, or may further include a plurality of bits in the medium access control-control cell. For example, in the coverage limited case, the third indication information may comprise bits in one or more of modulation and coding scheme indication information, carrier indication information, antenna port indication information, priority indication information, medium access control-control cells. In the non-coverage limited case, the third indication information may comprise a bit in a media access control-control cell. It may be understood that the bits included in the third indication information may be bits of other fields added to the downlink control information.

For the specific implementation of the third indication information, reference may be made to the implementation of the first indication information, which is not described herein.

For example, the candidate association information configured at the terminal device side includes candidate association information 0 and candidate association information 1, and the third indication information may be 1 bit. If the third indication information is a binary number "0", the candidate association information 0 is indicated. If the third indication information is a binary number "1", the candidate association information 1 is indicated.

In a possible design, the terminal device obtaining the third indication information may include that the terminal device receives downlink control information, where the downlink control information is scrambled by the first RNTI. And the terminal equipment acquires target association information corresponding to the first RNTI.

The candidate association information respectively corresponds to different RNTIs for scrambling downlink control information.

In the embodiment of the application, the RNTI can be a cell radio network temporary identifier (cell radio network tempory identity, C-RNTI), a configuration scheduling radio network temporary identifier (configured scheduling radio network tempory identity, CS-RNTI) and the like.

In other words, the third indication information may be an RNTI, and different RNTIs correspond to different candidate association information. For example, the C-RNTI corresponds to one candidate association information and the CS-RNTI corresponds to another candidate association information. Specifically, the C-RNTI corresponds to candidate association information 0, the CS-RNTI corresponds to candidate association information 1, and if the RNTI in the downlink control information is the C-RNTI, the target association information is candidate association information 0. Therefore, the RNTI can be acquired according to the downlink control information, so that extra resource expenditure can be avoided, and the communication efficiency is further improved.

S304, the terminal equipment determines a target repetition factor of the target uplink control resource according to the target association information.

The target uplink control resource is an uplink control resource indicated by the fourth indication information, and the target repetition factor is used for sending an uplink signal on the target uplink control resource.

The uplink signal may be a physical uplink control channel PUCCH or uplink data.

The fourth indication information may be a PRI, for example. The target uplink control resource may be determined according to the PRI. Regarding the implementation of the target uplink control resource, reference may be made to the existing implementation manner of the uplink control resource, which is not described herein.

How to determine the target repetition factor of the target uplink control resource is described in detail below.

Specifically, target association information is determined according to the third indication information, and then a target repetition factor is determined in the target association information according to the determined target uplink control resource.

Taking the target relation information as the association information of the table 12 as an example, if the target uplink control resource determined according to the PRI is resource 1, the target repetition factor is a repetition factor "8" corresponding to resource 1.

In the communication method shown in fig. 3, one piece of association information may be selected from a plurality of pieces of association information, and then a target repetition factor set is determined from the selected piece of association information, thereby determining the target repetition factor. In this way, the third indication information selects the associated information, so that the target repetition factor can be selected from the repetition factors corresponding to the target uplink control resource, and the flexibility of the repetition factor indication can be improved, thereby improving the communication efficiency.

By selecting the association information through the third indication information, different association relations can be selected according to the channel condition, for example, the association information with large corresponding repetition factor is selected when coverage is limited, and the association information with small corresponding repetition factor is selected when non-coverage is limited, so that flexibility is improved, and communication efficiency is further improved.

In summary, the communication method shown in fig. 3 can consider both resource overhead and flexibility, thereby improving communication efficiency.

Fig. 4 is a flow chart of a communication method according to an embodiment of the present application. The communication method may be applied to communication between the terminal device and the network device shown in fig. 1. The communication method shown in fig. 4 includes:

s401, the network equipment determines a target uplink control resource and a target repetition factor.

For the implementation of step S401, reference may be made to the implementation of step S201 in fig. 2, which is not described herein.

S402, the network equipment sends fifth indication information, and the terminal equipment receives the fifth indication information.

Wherein the fifth indication information is carried in one or more of downlink control information or medium access control-control cells. The fifth indication information corresponds to a repetition factor.

Illustratively, the fifth indication information is information that may be used for downlink indication, such as modulation and coding scheme MCS indication information, carrier indication information, antenna port indication information. The downlink indication may be related parameters and configuration indicating PDSCH reception.

S403, the terminal equipment determines a target repetition factor according to the fifth indication information.

The target repetition factor is used for sending an uplink signal on the target uplink control resource.

In one possible design, the fifth indication information may include one or more of Modulation and Coding Scheme (MCS) indication information, carrier indication information, antenna port indication information, or priority indication information. Therefore, the existing field of the downlink control information can be utilized to realize the indication of the repetition factor, so that the cost is saved and the efficiency is improved.

Illustratively, the modulation and coding scheme indication information may also be referred to as a modulation and coding field. For example, the modulation and coding field may be a field in dci_format1_0, dci_format1_1dci_format1_2. The carrier indication information may also be referred to as a carrier indication (carrier indicator) field, the Antenna port indication information may also be referred to as an Antenna port(s) field, and the priority indication information may also be referred to as a priority indication (priority indicator) field.

It should be noted that, in the embodiment of the present application, the repetition factor may also be indicated by other newly added fields.

Illustratively, in embodiments of the present application, the fifth indication information may indicate the repetition factor by one of an implicit indication, a display indication, and an implicit indication in combination.

For ease of understanding, the implicit indication is described below in conjunction with MCS indication information and antenna port number indication information.

Optionally, the modulation and coding scheme indication information is used to indicate an MCS index (MCS index), and the repetition factor may be related to the MCS index and/or a modulation order (modulation order) corresponding to the MCS index.

Specifically, the repetition factor may be determined according to the MCS index, or may be determined according to a modulation order corresponding to the MCS index, or may be determined together according to the MCS index and the modulation order corresponding to the MCS index. Further, the MCS index may include at least two intervals, each of the at least two intervals corresponding to a respective one of the repetition factors.

It is to be appreciated that the MCS index threshold may be configured by RRC signaling or may be determined by the protocol.

Illustratively, the interval corresponding to the MCS index may be divided according to the data segment where the MCS index is located. For example, for MCS index 0-MCS index 28, MCS index 0-MCS index 16 may be specified as one interval and MCS index 17-MCS index 28 as another interval. The interval corresponding to the MCS index may also be determined according to one or more MCS index thresholds. The threshold number of MCS indexes and the repetition factor number satisfy the relationship of n1=m1-1. Where M1 is the number of repetition factors and N1 is the threshold number of MCS indexes. For example, for MCS indexes 0-28, if the MCS index threshold is 17, it may be determined that an MCS index having an index less than 17 belongs to one interval and an index greater than or equal to 17 belongs to another interval.

The correspondence between the intervals and the repetition factors is described below with reference to table 13.

As shown in table 13, the MCS indexes include MCS indexes 0 to 31, and if MCS indexes 29 to 31 are reserved indexes. If the MCS indexes 0 to 28 are divided into two MCS index sections, namely, MCS index 0 to 16 and MCS index 17 to 28, respectively, the MCS index in the section of MCS index 0 to 16 corresponds to a repetition factor, such as the repetition factor "4", and the MCS index in the section of MCS index 17 to 28 corresponds to a repetition factor, such as the repetition factor "2".

TABLE 13

Table 13 continuation

Or further, the modulation order corresponding to the MCS index may include at least two intervals, each of the at least two intervals corresponding to a respective one of the repetition factors.

For example, the interval of the modulation order (hereinafter, simply referred to as modulation order) corresponding to the MCS index may be divided according to the data segment where the modulation order is located. For example, for MCS indexes 0 to 28, if the modulation order corresponding to MCS indexes 0 to 9 is 2, the modulation order corresponding to MCS indexes 10 to 16 is 4, and the modulation order corresponding to MCS indexes 17 to 28 is 6, it may be specified that modulation order 2 and modulation order 4 belong to one interval and modulation order 6 belongs to another interval.

TABLE 14

Table 14 continuation

The interval of modulation orders may also be determined from one or more modulation order thresholds. The threshold number of modulation orders corresponding to the MCS index and the repetition factor number satisfy the following relationship of n2=m2-1. Wherein M2 is the number of repetition factors, and N2 is the threshold number of modulation orders corresponding to the MCS index. For example, for MCS index 0-MCS index 28, if the threshold of modulation order is 6, it may be determined that modulation order less than 6 belongs to one interval and modulation order greater than or equal to 6 belongs to another interval. The correspondence between the intervals and the repetition factors is described below in conjunction with table 14.

As shown in table 14, the MCS index includes MCS index 0 to MCS index 28. If the modulation order interval is less than 6 and the modulation order is greater than or equal to 6, the MCS indexes in the MCS index 0 to MCS index 16 interval correspond to a repetition factor, such as a repetition factor of "4", and the MCS indexes in the MCS index 17 to MCS index 28 interval correspond to a repetition factor, such as a repetition factor of "2".

It will be appreciated that the modulation order threshold may be configured by RRC signaling or may be determined by the protocol.

Therefore, the repetition factor can be indicated implicitly according to the MCS index or the modulation order indicated by the modulation and coding scheme indication information, and the repetition factor is indicated under different coverage conditions, such as coverage limitation or non-coverage limitation, so that the indication of the repetition factor is realized flexibly, and the communication efficiency is further improved.

Alternatively, the repetition factor may be determined from a modulation and coding scheme index table (MCS index table). Wherein one modulation and coding scheme index table corresponds to one repetition factor. For example, if the code rate corresponding to the modulation and coding scheme index table (MCS index table) configured at the terminal device side is low, for example, the modulation and coding scheme index table 3 may determine that the target repetition factor is a larger repetition factor, for example, a repetition factor of 8. For another example, if the code rate corresponding to the modulation and coding scheme index table (MCS index table) configured at the terminal device side is high, it may be determined that the target repetition factor is a smaller repetition factor, for example, a repetition factor of 2.

Alternatively, the repetition factor may correspond to the number of modem reference signal ports.

Further, the modem reference signal port number may include at least two intervals, each of the at least two intervals corresponding to a respective one of the repetition factors.

Illustratively, the interval of the number of the ports of the modem reference signal indicated by the antenna port indication information may be divided according to the data segment where the number of the ports of the modem reference signal is located. For example, for the antenna port indication information of the modem reference signal port number between the port number a and the port number B (excluding the port number B), one repetition factor is corresponding. The modem reference signal port number is located in the antenna port indication information between the port number B (including the port number B) and the port number C, and corresponds to another repetition factor. Wherein A < B < C.

Illustratively, the modem reference signal port number may be inversely related to the repetition factor. For example, the number of modem reference signal ports is 1, the corresponding repetition factor may be "4", the number of modem reference signal ports is 3, and the corresponding repetition factor may be "1".

The interval of the port number of the modem reference signal can be determined according to one or more port number thresholds. The number of port number thresholds and the number of repetition factors satisfy the relationship of n3=m3-1. Where M3 is the number of repetition factors and N3 is the number of port number thresholds.

It will be appreciated that the threshold number of ports may be configured by RRC signaling or may be defined by the protocol.

The correspondence between the modem reference signal port number interval and the repetition factor is described below with reference to table 13.

As shown in table 13, the port indication information is 0 to 11, and the mapping relationship between the antenna port indication information and the antenna ports, the number of antenna ports and the repetition factor is shown in table 15 below.

TABLE 15

In the embodiment of the application, the communication method shown in fig. 4 may further include that the network device sends the field indication information. The terminal device receives the field indication information.

The field indication information may be used to indicate the repetition factor by one or more of an MCS index, a modulation order corresponding to the MCS index, or a DMRS port number.

Illustratively, if there is an association of an uplink coverage condition with a downlink coverage condition, the field indication information is used to indicate that the repetition factor is indicated by the MCS index. The uplink coverage condition is associated with the downlink coverage condition, and one of the conditions that the unpaired spectrum, the time division multiplexing or the uplink and the downlink are in the same frequency point (such as 4.9 GHz) is met.

Explicit indication of the repetition factor is described below in conjunction with carrier indication information, antenna port indication information, and priority indication information.

For example, a partial bit or state value in the carrier indication information may be used to indicate the repetition factor. For example, for DCI format 1_1, the field bit corresponding to the carrier indication information is 0 bit or 3 bits. If the terminal equipment is configured with the carrier indication information by the serving cell, the field bit corresponding to the carrier indication information is 3 bits, and the repetition factor can be indicated through the carrier indication information. At this time, the repetition factor may be indicated by 1 bit or 2 bits in the carrier indication information. Specifically, the most significant bit or the least significant bit of the 3 bits may be taken to indicate a repetition factor, or multiplexing status values such as "111", "110", and "101".

Similarly, for DCI format 1_2, the carrier indication information configured by the serving cell for the terminal device may be 0 bits, 1bit, 2 bits, or 3 bits. When the repetition factor is indicated by the carrier indication information in the DCI format 1_2, the repetition factor may be indicated by the most significant bit or the least significant bit, or the multiplexing status values such as "111", "110" and "101". For example, two repetition factors are indicated, the most significant bit of 1bit may be used, or the repetition factors are indicated with status values "111" and "110".

For example, the repetition factor may be indicated by a bit of a part of the antenna port indication information, e.g., a bit of 4 bits, or 5 bits, or 6 bits of the carrier indication information in DCI format 1_1. As another example, bits of 4 bits, or 5 bits, or 6 bits of the carrier indication information in DCI format 1_2. The implementation of indicating the repetition factor by the antenna port indication information is similar to the carrier indication information and will not be described here again.

In the embodiment of the application, the repetition factor can be indicated by the state value of the antenna port indication information indicating that the number of ports is large. The repetition factor may also be indicated by the most significant bit or the least significant bit in the antenna port indication information. The repetition factor may also be indicated by a bit of the newly added antenna port indication information. For example, if the configured antenna port table is indicated by 4 bits, the antenna port indication information may be configured to 5 bits, thereby indicating the repetition factor with 1 bit therein, or indicating the repetition factor with a partial status value composed of 5 bits.

Illustratively, at this time, the priority of the PUCCH carrying feedback information is low. Accordingly, the repetition factor may be indicated using bits of priority indication information, such as 1-bit priority indication information configured by DCI format 1_1 or DCI format 1_2.

Regarding the scheme for determining coverage limitation, reference may be made to the implementation manner for determining coverage limitation, which is not described herein.

It should be noted that, in the embodiment of the present application, the repetition factor may also be indicated by RRC signaling, where some bits or state values of some fields in the downlink control information are used to indicate the repetition factor. Specifically, the base station may determine which fields to use according to the coverage condition, and further indicate through RRC information.

In a possible design, the communication method shown in fig. 4 may further include determining, by the terminal device, the target repetition factor in the target repetition factor set according to the fifth indication information.

In one possible design, the communication method shown in fig. 4 may further include the network device sending the sixth indication information. Accordingly, the terminal device receives the sixth indication information.

The sixth indication information is used for indicating the target repetition factor set. The target set of repetition factors is one of a plurality of candidate sets of repetition factors.

For the implementation manner of the sixth indication information, reference may be made to the implementation manner of the first indication information, which is not described herein.

Optionally, the communication method shown in fig. 4 may further include the network device transmitting seventh indication information. Accordingly, the terminal device receives the seventh indication information. Wherein the seventh indication information is used for indicating a plurality of candidate repetition factor sets.

Regarding the implementation manner of the seventh indication information, reference may be made to the implementation manner of the second indication information, which is not described herein.

Based on the communication method shown in fig. 4, the target repetition factor may be indicated based on downlink control information or medium access control-control cells. Therefore, different repetition factors can be indicated according to the downlink control information or the media access control-control information element, so that the method is more flexible and the communication efficiency can be improved. In addition, the repetition factor is indicated by the existing field, so that additional resource overhead can be avoided, and the communication efficiency can be improved. In addition, based on the downlink control information or the media access control-control information element indication target repetition factor, implicit indication of the repetition factor can be realized, for example, the repetition factor can be determined according to the MCS index, so that the indication of the repetition factor can be realized under different coverage conditions, the flexibility of the repetition factor indication is improved, and the communication efficiency is further improved.

In summary, the communication method shown in fig. 4 can improve flexibility and further improve communication efficiency.

Fig. 5 is a flow chart of a communication method according to an embodiment of the present application. The communication method may be applied to communication between the terminal device and the network device shown in fig. 1.

The communication method shown in fig. 5 includes:

S501, the network device determines a target uplink control resource and a target repetition factor. The target repetition factor is used for receiving the uplink signal on the target uplink control resource.

S502, the network equipment sends downlink control information. The terminal equipment receives the downlink control information.

Wherein, the downlink control information is scrambled by the second RNTI.

S501, the terminal equipment acquires a target repetition factor corresponding to the second RNTI.

Wherein, RNTIs used for scrambling downlink control information respectively correspond to different repetition factors. The target repetition factor is used to transmit the uplink signal on the target uplink control resource.

In a possible design, the method of the communication method shown in fig. 5 may further include the network device sending eighth indication information, and the terminal device determining the target repetition factor in the target repetition factor set according to the eighth indication information.

In a possible design, the method shown in the communication method shown in fig. 5 may further include that the network device sends the ninth indication information, and the terminal device receives the ninth indication information.

Wherein the ninth indication information is used for indicating the target repetition factor set. The target set of repetition factors is one of a plurality of candidate sets of repetition factors.

Regarding the implementation of the eighth indication information and the ninth indication information, reference may be made to the implementation of the first indication information, which is not described herein. Based on the communication method shown in fig. 5, the repetition factors can be indicated by different RNTI, so that no field needs to be added, extra resource expense is avoided, and the flexible indication of the repetition factors can be realized by corresponding different RNTI with different repetition factors, thereby improving the communication efficiency. Furthermore, the repetition factor can be indicated under different coverage conditions, and the indication of the repetition factor is more flexible.

In summary, the communication method shown in fig. 5 can achieve both resource overhead and flexibility.

The communication method provided by the embodiment of the application is described in detail above with reference to fig. 3 to 5. A communication apparatus for performing the communication method provided by the embodiment of the present application is described in detail below with reference to fig. 6 to 8.

Fig. 6 is a schematic structural diagram of a communication device according to an embodiment of the present application. As shown in fig. 6, the communication apparatus 600 includes an acquisition module 601 and a determination module 602. For ease of illustration, fig. 6 shows only the main components of the communication device.

In some embodiments, the communication apparatus 600 may be adapted to be used in the communication system shown in fig. 1, perform the function of the terminal device in the communication method shown in fig. 2, or perform the function of the terminal device in the communication method shown in fig. 3, or perform the function of the terminal device in the communication method shown in fig. 4, or perform the function of the terminal device in the communication method shown in fig. 5.

The obtaining module 601 is configured to obtain a first index.

And a determining module 602, configured to determine, according to the first mapping relationship, a target uplink control resource and a target repetition factor corresponding to the first index.

In the first mapping relation, one index corresponds to one repetition factor and one uplink control resource, and the target repetition factor is used for sending uplink signals on the target uplink control resource.

In a possible design, the obtaining module 601 is configured to obtain configuration information. The configuration information includes the number of uplink control resources, the number of repetition factors corresponding to the first mapping relationship, first uplink resource index indication information, the total number of control channel elements CCEs in the downlink control resource set CORESET, and a first resource index. The determining module 602 is configured to determine a first index according to the configuration information.

Optionally, the first uplink resource index indication information is uplink control resource indication information.

Optionally, the first resource index is an index of a first CCE occupied by a physical downlink control channel.

In one possible design, the ratio of the first index to the first resource index of the total number of CCEs in the downlink control resource set, and the first uplink resource index indication information are related.

In one possible embodiment, the first index satisfies the following relationship:

In one possible embodiment, the first index satisfies one of the following relationships:

Or alternatively, the first and second heat exchangers may be,

In a possible design, the obtaining module 601 is further configured to obtain first indication information, where the first indication information is used to indicate a first repetition factor set, and the first repetition factor set is one of multiple repetition factor sets;

and determining a first mapping relation according to the first repetition factor set and the uplink control resource set.

Further, the obtaining module 601 is further configured to receive second indication information, where the second indication information is used to indicate a plurality of repetition factor sets.

Alternatively, the acquisition module 601 may include a receiving module and a transmitting module. Wherein, the transceiver module is used for realizing the sending function and the receiving function of the communication device according to the fifth aspect. The transmitting module and the receiving module may also be integrated into one module, such as a transceiver module. The acquisition module 601 may also be a module with a data processing function, and the acquisition module 601 and the determination module 602 may be integrated into one module, such as a processing module.

Optionally, the communication device 600 may further comprise a storage module (not shown in fig. 6) storing programs or instructions. The program or instructions, when executed by the processing module, enable the communications apparatus 600 to perform the functions of a terminal device in the communications method illustrated in any one of figures 2-5.

It is to be appreciated that the processing modules involved in communication device 600 may be implemented by a processor or processor-related circuit component, which may be a processor or processing unit, and that the transceiver modules may be implemented by a transceiver or transceiver-related circuit component, which may be a transceiver or transceiver unit.

The communication device 600 may be a terminal device, a chip (system) or other components or assemblies that may be disposed in the terminal device, or a device including the terminal device, which is not limited in the present application.

In addition, the technical effects of the communication apparatus 600 may refer to the technical effects of the communication method shown in any one of fig. 2 to 5, and will not be described herein.

Fig. 7 is a schematic diagram of a second configuration of a communication device according to an embodiment of the present application. As shown in fig. 7, the communication apparatus 700 includes a processing module 701 and a transceiver module 702. For ease of illustration, fig. 7 shows only the main components of the communication device.

The communication apparatus 700 may be applied to the communication system shown in fig. 1, perform the function of the network device in the communication method shown in fig. 2, or perform the function of the network device in the communication method shown in fig. 3, or perform the function of the network device in the communication method shown in fig. 4, or perform the function of the network device in the communication method shown in fig. 5.

A processing module 701, configured to determine a target uplink control resource and a target repetition factor. The target repetition factor is used for receiving the uplink signal on the target uplink control resource.

And a transceiver module 702, configured to send the first information. The first information includes an uplink control resource number, a repetition factor number, first uplink resource index indication information, a total number of control channel elements CCEs in the downlink control resource set CORESET, and a first resource index.

In one possible design, the first uplink resource index indication information is uplink control resource indication information.

In one possible design, the first resource index is an index of a first CCE occupied by a physical downlink control channel.

Optionally, the transceiver module 702 is further configured to send the second indication information. Wherein the second indication information is used for indicating a plurality of repetition factor sets.

Alternatively, the transceiver module 702 may include a receiving module and a transmitting module. The transceiver module 702 is configured to implement the transmitting function and the receiving function of the communication device described in fig. 7.

Optionally, the communication device shown in fig. 7 may further include a storage module, where the storage module stores a program or instructions. The program or instructions, when executed by the processing module, enable the communication device to perform the communication method described in fig. 2-5.

It is to be appreciated that the processing module 701 referred to in the communication apparatus 700 may be implemented by a processor or a processor-related circuit component, which may be a processor or a processing unit, and that the transceiver module 702 may be implemented by a transceiver or a transceiver-related circuit component, which may be a transceiver or a transceiver unit.

Note that, the communication apparatus 700 may be the network device shown in fig. 1, or may be a chip (system) or other components or assemblies disposed in the network device, or an apparatus including the network device, which is not limited in the embodiment of the present application.

In addition, the technical effects of the communication apparatus 700 may refer to the technical effects of the communication method shown in any one of fig. 2 to 5, and are not described herein.

Fig. 8 is a schematic diagram of a communication device according to an embodiment of the present application. The communication device may be a terminal device or a network device, or may be a chip (system) or other parts or components that may be provided in the terminal device or the network device. As shown in fig. 8, a communication device 800 may include a processor 801. Optionally, the communication device 800 may also include a memory 802 and/or a transceiver 803. The processor 801 is coupled to a memory 802 and a transceiver 803, such as may be connected by a communication bus.

The following describes the respective constituent elements of the communication apparatus 800 in detail with reference to fig. 8:

The processor 801 is a control center of the communication device 800, and may be one processor or a collective term of a plurality of processing elements. For example, the processor 801 is one or more central processing units (central processing unit, CPU), or may be an Application SPECIFIC INTEGRATED Circuit (ASIC), or one or more integrated circuits configured to implement embodiments of the present application, such as one or more microprocessors (DIGITAL SIGNAL processors, DSPs), or one or more field programmable gate arrays (field programmable GATE ARRAY, FPGAs).

Alternatively, the processor 801 may perform various functions of the communication device 800 by running or executing software programs stored in the memory 802 and invoking data stored in the memory 802.

In a particular implementation, the processor 801 may include one or more CPUs, such as CPU0 and CPU1 shown in FIG. 8, as an embodiment.

In a particular implementation, as an embodiment, the communication device 800 may also include a plurality of processors, such as the processor 801 and the processor 804 shown in fig. 2. Each of these processors may be a single-core processor (single-CPU) or a multi-core processor (multi-CPU). A processor herein may refer to one or more devices, circuits, and/or processing cores for processing data (e.g., computer program instructions).

The memory 802 is configured to store a software program for executing the solution of the present application, and the processor 801 controls the execution of the software program, and the specific implementation may refer to the above method embodiment, which is not described herein again.

Alternatively, memory 802 may be, but is not limited to, a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (random access memory, RAM) or other type of dynamic storage device that can store information and instructions, an electrically erasable programmable read-only memory (ELECTRICALLY ERASABLE PROGRAMMABLE READ-only memory, EEPROM), a compact disc read-only memory (compact disc read-only memory) or other optical disk storage, optical disk storage (including compact disc, laser disc, optical disc, digital versatile disc, blu-ray disc, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. The memory 802 may be integral to the processor 801 or may exist separately and be coupled to the processor 801 by interface circuitry (not shown in fig. 8) of the communication device 800, as embodiments of the application are not specifically limited.

A transceiver 803 for communication with other communication devices. For example, the communication apparatus 800 is a terminal device, and the transceiver 803 may be used to communicate with a network device or another terminal device. As another example, the communication apparatus 800 is a network device, and the transceiver 803 may be used to communicate with a terminal device or another network device.

Alternatively, the transceiver 803 may include a receiver and a transmitter (not separately shown in fig. 8). The receiver is used for realizing the receiving function, and the transmitter is used for realizing the transmitting function.

Alternatively, transceiver 803 may be integrated with processor 801 or may exist separately and be coupled to processor 801 through interface circuitry (not shown in fig. 8) of communication device 800, as embodiments of the application are not specifically limited in this regard.

It should be noted that the structure of the communication device 800 shown in fig. 8 is not limited to the communication device, and an actual communication device may include more or fewer components than shown, or may combine some components, or may be different in arrangement of components.

In addition, the technical effects of the communication device 800 may refer to the technical effects of the communication method described in the above method embodiments, which are not described herein.

The embodiment of the application provides a communication system. The communication system comprises one or more terminal devices as described above, and one or more network devices.

It is to be understood that the network device implementing the embodiments of the present application may be implemented by one or more functional units (or functional modules), and the one or more functional units (or functional modules) may be located in the same device or in different devices.

It should be appreciated that the processor in embodiments of the application may be a central processing unit (central processing unit, CPU), which may also be other general purpose processors, digital signal processors (DIGITAL SIGNAL processors, DSPs), application Specific Integrated Circuits (ASICs), off-the-shelf programmable gate arrays (field programmable GATE ARRAY, FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

It should also be appreciated that the memory in embodiments of the present application may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an erasable programmable ROM (erasable PROM), an electrically erasable programmable EPROM (EEPROM), or a flash memory. The volatile memory may be random access memory (random access memory, RAM) which acts as external cache memory. By way of example, and not limitation, many forms of random access memory (random access memory, RAM) are available, such as static random access memory (STATIC RAM, SRAM), dynamic Random Access Memory (DRAM), synchronous Dynamic Random Access Memory (SDRAM), double data rate synchronous dynamic random access memory (double DATA RATE SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (ENHANCED SDRAM, ESDRAM), synchronous link dynamic random access memory (SYNCHLINK DRAM, SLDRAM), and direct memory bus random access memory (direct rambus RAM, DR RAM).

The above embodiments may be implemented in whole or in part by software, hardware (e.g., circuitry), firmware, or any other combination. When implemented in software, the above-described embodiments may be implemented in whole or in part in the form of a computer program product. The computer program product comprises one or more computer instructions or computer programs. When the computer instructions or computer program are loaded or executed on a computer, the processes or functions described in accordance with embodiments of the present application are produced in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from one website site, computer, server, or data center to another website site, computer, server, or data center by wired (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains one or more sets of available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium. The semiconductor medium may be a solid state disk.

It should be understood that the term "and/or" is merely an association relationship describing the associated object, and means that three relationships may exist, for example, a and/or B, and may mean that a exists alone, while a and B exist alone, and B exists alone, wherein a and B may be singular or plural. In addition, the character "/" herein generally indicates that the associated object is an "or" relationship, but may also indicate an "and/or" relationship, and may be understood by referring to the context.

In the present application, "at least one" means one or more, and "a plurality" means two or more. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (a, b, or c) of a, b, c, a-b, a-c, b-c, or a-b-c may be represented, wherein a, b, c may be single or plural.

It should be understood that, in various embodiments of the present application, the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic thereof, and should not constitute any limitation on the implementation process of the embodiments of the present application.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.

In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. The storage medium includes a U disk, a removable hard disk, a read-only memory (ROM), a random access memory (random access memory, RAM), a magnetic disk, an optical disk, or other various media capable of storing program codes.

The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A communication method, applied to a terminal device, the method comprising:

Acquiring a first index;

The method comprises the steps of obtaining first indication information, wherein the first indication information is used for indicating a first repetition factor set, and the first repetition factor set is one of a plurality of repetition factor sets;

determining a first mapping relation according to the first repetition factor set and an uplink control resource set;

Determining a target uplink control resource and a target repetition factor corresponding to the first index according to the first mapping relation;

2. The method of claim 1, wherein the obtaining the first index comprises:

The configuration information comprises uplink control resource number, repetition factor number corresponding to the first mapping relation, first uplink resource index indication information, total number of control channel elements CCE in a downlink control resource set CORESET and first resource index;

and determining the first index according to the configuration information.

3. The method of claim 2, wherein the first uplink resource index indication information is uplink control resource indication information.

4. A method according to claim 2 or 3, characterized in that the first resource index is the index of the first CCE occupied by the physical downlink control channel.

5. A method according to claim 2 or 3, characterized in that the first index is related to the ratio of the first resource index to the total number of CCEs in the downlink control resource set, and the first uplink resource index indication information.

6. A method according to claim 2 or 3, wherein the first index satisfies the following relationship:

Wherein r _re,rep is the first index, N _CCE,p is the total number of CCEs in the downlink control resource set, N _CCE,p is the first resource index, N _CCE,p/N_CCE,p<1,R_re,rep is the product of the repetition factor number and the uplink control resource number, and Δ _PRI is the value of the first uplink resource index indication information.

7. A method according to claim 2 or 3, wherein the first index satisfies one of the following relationships:

Or alternatively, the first and second heat exchangers may be,

Wherein R _re,rep is the first index, N _CCE,p is the total number of CCEs in the downlink control resource set, N _CCE,p is the first resource index, N _CCE,p/N_CCE,p<1,R_PUCCH is the number of uplink control resources, R _re,rep is the product of the number of repetition factors and the number of uplink control resources, and Δ _PRI is the value of the first uplink resource index indication information.

8. A method according to any one of claims 1-3, characterized in that the method further comprises:

And receiving second indication information, wherein the second indication information is used for indicating the multiple repetition factor sets.

9. A method of communication, for use with a network device, the method comprising:

determining a target uplink control resource and a target repetition factor, wherein the target repetition factor is used for receiving an uplink signal on the target uplink control resource;

The method comprises the steps of sending first indication information, wherein the first indication information is used for indicating the first repetition factor set, and the first repetition factor set is one of a plurality of repetition factor sets;

and sending first information, wherein the first information comprises uplink control resource number, repetition factor number, first uplink resource index indication information, total number of Control Channel Elements (CCEs) in a downlink control resource set CORESET and first resource index.

10. The method of claim 9, wherein the first uplink resource index indication information is uplink control resource indication information.

11. The method according to claim 9 or 10, characterized in that the first resource index is an index of a first CCE occupied by a physical downlink control channel.

12. The method according to claim 9 or 10, characterized in that the method further comprises:

And sending second indication information, wherein the second indication information is used for indicating the multiple repetition factor sets.

13. The communication device is characterized by comprising an acquisition module and a determination module;

The acquisition module is used for acquiring the first index;

The acquisition module is further used for acquiring first indication information, wherein the first indication information is used for indicating a first repetition factor set, and the first repetition factor set is one of a plurality of repetition factor sets;

The determining module is used for determining a target uplink control resource and a target repetition factor corresponding to the first index according to the first mapping relation;

14. The apparatus of claim 13, wherein the device comprises a plurality of sensors,

The acquisition module is configured to acquire configuration information, where the configuration information includes an uplink control resource number, a repetition factor number corresponding to the first mapping relation, first uplink resource index indication information, a total number of control channel elements CCE in a downlink control resource set CORESET, and a first resource index;

the determining module is used for determining the first index according to the configuration information.

15. The apparatus of claim 14, wherein the first uplink resource index indication information is uplink control resource indication information.

16. The apparatus of claim 14 or 15, wherein the first resource index is an index of a first CCE occupied by a physical downlink control channel.

17. The apparatus of claim 14 or 15, wherein the first index is related to a ratio of the first resource index to a total number of CCEs in the set of downlink control resources and the first uplink resource index indication information.

18. The apparatus according to claim 14 or 15, wherein the first index satisfies the following relationship:

19. The apparatus according to claim 14 or 15, wherein the first index satisfies one of the following relationships:

Or alternatively, the first and second heat exchangers may be,

20. The device according to any one of claims 13-15, wherein,

The acquisition module is further configured to receive second indication information, where the second indication information is used to indicate the multiple repetition factor sets.

21. A communication device, characterized in that the device comprises a processing module and a transceiver module;

The processing module is used for determining a target uplink control resource and a target repetition factor, wherein the target repetition factor is used for receiving an uplink signal on the target uplink control resource;

The receiving and transmitting module is used for sending first indication information, wherein the first indication information is used for indicating the first repetition factor set, and the first repetition factor set is one of a plurality of repetition factor sets;

The transceiver module is further configured to send first information, where the first information includes an uplink control resource number, a repetition factor number, first uplink resource index indication information, a total number of control channel elements CCEs in a downlink control resource set CORESET, and a first resource index.

22. The apparatus of claim 21, wherein the first uplink resource index indication information is uplink control resource indication information.

23. The apparatus of claim 21 or 22, wherein the first resource index is an index of a first CCE occupied by a physical downlink control channel.

24. The apparatus of claim 21 or 22, wherein the device comprises a plurality of sensors,

The transceiver module is further configured to send second indication information, where the second indication information is used to indicate the multiple repetition factor sets.

25. A communication device is characterized in that the communication device comprises a processor, wherein,

The processor configured to perform the communication method of any of claims 1-12.

26. A communication device comprising a processor coupled to a memory;

The processor configured to execute a computer program stored in the memory, to cause the communication apparatus to perform the communication method according to any one of claims 1-12.

27. A communication device is characterized by comprising a processor;

The processor is configured to be coupled to a memory and to perform the communication method according to any of claims 1-12 in accordance with the instructions after reading the instructions in the memory.

28. A communication device comprising a processor and a memory for storing computer instructions which, when executed by the processor, cause the communication device to perform the communication method of any of claims 1-12.

29. A communication device is characterized by comprising a processor and an interface circuit, wherein,

The interface circuit is used for receiving code instructions and transmitting the code instructions to the processor;

the processor is configured to execute the code instructions to perform the method of any of claims 1-12.

30. A communication device comprising a processor and a transceiver for information interaction between the communication device and other communication devices, the processor executing program instructions for performing the communication method of any of claims 1-12.

31. A processor comprising a processor configured to perform the communication method of any one of claims 1-12.

32. A computer-readable storage medium, characterized in that the computer-readable storage medium comprises a computer program or instructions which, when run on a computer, cause the computer to perform the communication method according to any one of claims 1-12.

33. A computer program product, characterized in that it comprises a computer program or instructions which, when run on a computer, cause the computer to carry out the communication method according to any one of claims 1-12.