CN114287118A

CN114287118A - Downlink control signaling receiving method, network equipment and terminal equipment

Info

Publication number: CN114287118A
Application number: CN201980099795.7A
Authority: CN
Inventors: 林亚男; 吴作敏
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2019-11-15
Filing date: 2019-11-15
Publication date: 2022-04-05
Anticipated expiration: 2039-11-15
Also published as: WO2021092955A1; CN114287118B

Abstract

The invention discloses a downlink control signaling receiving method, a network device, a terminal device, a chip, a computer readable storage medium, a computer program product and a computer program, wherein the method comprises the following steps: the terminal equipment receives a first signaling; the first signaling is used for indicating the terminal equipment to transmit a first uplink channel; under the condition that a preset condition is met, a target information field in the first signaling is used for indicating the number of downlink channels contained in the N channel groups, or is used for indicating the number of downlink channels contained in each of the N channel groups; the preset conditions include: the terminal device receives a second signaling, and a second uplink channel scheduled by the second signaling at least partially overlaps with the first uplink channel in a time domain, where the second uplink channel is used to transmit feedback information corresponding to M channel groups, N, M is a positive integer, and N is less than or equal to M.

Description

Downlink control signaling receiving method, network equipment and terminal equipment

Technical Field

The present invention relates to the field of information processing technologies, and in particular, to a downlink control signaling receiving method, a network device, a terminal device, a chip, a computer-readable storage medium, a computer program product, and a computer program.

Background

In the related art, a packet-based ACK/NACK feedback scheme is supported for NR-U (NR-based Access to Unlicensed Spectrum) of Rel-16. The feedback mode may be that the network device indicates, through the scheduling signaling, the scheduled downlink channel or the channel group information to which the downlink channel carrying the DCI belongs; when the network equipment sends a trigger signaling and instructs the terminal to feed back ACK/NACK information corresponding to a certain channel group, the terminal feeds back feedback information corresponding to all PDSCHs or PDCCHs belonging to the group to the base station together. Such a feedback method may have a problem of reducing uplink transmission efficiency, a problem of limiting the number of scheduled downlink channels due to scheduling limitations, and the like.

Disclosure of Invention

In order to solve the above technical problem, embodiments of the present invention provide a downlink control signaling receiving method, a network device, a terminal device, a chip, a computer-readable storage medium, a computer program product, and a computer program.

In a first aspect, a method for receiving downlink control signaling is provided, including:

the terminal equipment receives a first signaling;

the first signaling is used for indicating the terminal equipment to transmit a first uplink channel; the first signaling comprises a target information domain; under the condition that a preset condition is met, a target information field in the first signaling is used for indicating the number of downlink channels contained in the N channel groups, or is used for indicating the number of downlink channels contained in each of the N channel groups;

the preset conditions include:

the terminal device receives a second signaling, and a second uplink channel scheduled in the second signaling at least partially overlaps with the first uplink channel in a time domain, where the second uplink channel is used to transmit feedback information corresponding to M channel groups, N, M is a positive integer, and N is less than or equal to M.

In a second aspect, a method for receiving downlink control signaling is provided, including:

the network equipment sends a first signaling;

the preset conditions include:

and sending a second signaling to the terminal device, wherein a second uplink channel scheduled in the second signaling at least partially overlaps with the first uplink channel in a time domain, the second uplink channel is used for transmitting feedback information corresponding to M channel groups, N, M is a positive integer, and N is less than or equal to M.

In a third aspect, a terminal device is provided, which includes:

a first communication unit which receives a first signaling;

the preset conditions include:

In a fourth aspect, a network device is provided, comprising:

a second communication unit that transmits the first signaling;

the preset conditions include:

In a fifth aspect, a method for receiving downlink control signaling is provided, including:

the terminal equipment receives a first signaling; the first signaling comprises a first information domain and a second information domain;

the first information field is used for indicating the number of downlink channels contained in a target channel group; the second information field is used for indicating that the target channel group indicated by the first information field is one of at least two channel groups.

A sixth aspect provides a method for receiving downlink control signaling, including:

the network equipment sends a first signaling; the first signaling comprises a first information domain and a second information domain;

the first information field is used for indicating the number of downlink channels contained in a target channel group to terminal equipment; the second information field is used for indicating that the target channel group indicated by the first information field is one of at least two channel groups.

In a seventh aspect, a terminal device is provided, including:

a first communication unit which receives a first signaling; the first signaling comprises a first information domain and a second information domain;

In an eighth aspect, a network device is provided, comprising:

a second communication unit that transmits the first signaling; the first signaling comprises a first information domain and a second information domain;

In a ninth aspect, there is provided a terminal device, comprising: a processor and a memory for storing a computer program capable of running on the processor,

the memory is used for storing computer programs, and the processor is used for calling and running the computer programs stored in the memory to execute the steps of the method.

In a tenth aspect, there is provided a network device comprising: a processor and a memory for storing a computer program capable of running on the processor,

In an eleventh aspect, there is provided a chip comprising: and the processor is used for calling and running the computer program from the memory so that the equipment provided with the chip executes the method.

In a twelfth aspect, a computer-readable storage medium is provided, for storing a computer program, which causes a computer to perform the steps of the method as described before.

In a thirteenth aspect, a computer program product is provided, comprising computer program instructions to cause a computer to perform the method as described above.

In a fourteenth aspect, a computer program is provided, which causes a computer to perform the method as described above.

By adopting the above scheme, whether the target information field in the first signaling contains the number of the downlink channels can be determined according to the received second signaling, and the target information field of the first signaling can be determined to indicate the number of the downlink channels under the condition that the preset condition is met. The method can determine that feedback information corresponding to a plurality of channel groups needs to be sent under the condition that a preset condition is met, so that the problems that the system efficiency is influenced and the DCI indicating efficiency is reduced due to the fact that feedback is triggered each time the first signaling is sent are solved; in addition, the above mode has no limitation on the number of the downlink channels of the target information domain, so that the problem of scheduling limitation is avoided.

Drawings

Fig. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application;

fig. 2 is a first flowchart illustrating a discontinuous reception processing method according to an embodiment of the present invention;

fig. 3 is a flowchart illustrating a discontinuous reception processing method according to an embodiment of the present invention;

fig. 4-1 and fig. 4-2 are schematic diagrams of two scenarios of a discontinuous reception processing method according to an embodiment of the present invention;

fig. 5 is a schematic diagram of a structure of a terminal device according to an embodiment of the present invention;

fig. 6 is a schematic diagram of a network device structure according to an embodiment of the present invention;

fig. 7 is a third schematic flow chart of a discontinuous reception processing method according to an embodiment of the present invention;

fig. 8 is a fourth schematic flow chart of a discontinuous reception processing method according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of a communication device according to an embodiment of the present invention;

FIG. 10 is a schematic block diagram of a chip provided by an embodiment of the present application;

fig. 11 is a schematic diagram two of a communication system architecture provided in an embodiment of the present application.

Detailed Description

So that the manner in which the features and aspects of the embodiments of the present invention can be understood in detail, a more particular description of the embodiments of the invention, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings.

Technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: a Global System for Mobile communications (GSM) System, a Code Division Multiple Access (CDMA) System, a Wideband Code Division Multiple Access (WCDMA) System, a General Packet Radio Service (GPRS), a Long Term Evolution (Long Term Evolution, LTE) System, an LTE Frequency Division Duplex (FDD) System, an LTE Time Division Duplex (TDD), a Universal Mobile Telecommunications System (UMTS), a Worldwide Interoperability for Microwave Access (WiMAX) communication System, or a 5G System.

For example, a communication system 100 applied in the embodiment of the present application may be as shown in fig. 1. The communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a UE120 (or referred to as a communication terminal, terminal). Network device 110 may provide communication coverage for a particular geographic area and may communicate with UEs located within that coverage area. Optionally, the Network device 110 may be a Base Transceiver Station (BTS) in a GSM system or a CDMA system, a Network device (NodeB, NB) in a WCDMA system, an evolved Node B (eNB or eNodeB) in an LTE system, or a wireless controller in a Cloud Radio Access Network (CRAN), or a Network device in a Mobile switching center, a relay Station, an Access point, a vehicle-mounted device, a wearable device, a hub, a switch, a bridge, a router, a Network side device in a 5G Network, or a Network device in a Public Land Mobile Network (PLMN) for future evolution, or the like.

The communication system 100 also includes at least one UE120 located within the coverage area of the network device 110. "UE" as used herein includes, but is not limited to, connections via wireline, such as Public Switched Telephone Network (PSTN), Digital Subscriber Line (DSL), Digital cable, direct cable connection; and/or another data connection/network; and/or via a Wireless interface, e.g., to a cellular Network, a Wireless Local Area Network (WLAN), a digital television Network such as a DVB-H Network, a satellite Network, an AM-FM broadcast transmitter; and/or another UE's device configured to receive/transmit communication signals; and/or Internet of Things (IoT) devices. A UE that is arranged to communicate over a radio interface may be referred to as a "radio communication terminal", "radio terminal" or "mobile terminal".

Optionally, a Device to Device (D2D) communication may be performed between UEs 120.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

An embodiment of the present invention provides a method for receiving a downlink control signaling, as shown in fig. 2, including:

step 21: the terminal equipment receives a first signaling; the first signaling is used for indicating the terminal equipment to transmit a first uplink channel; the first signaling comprises a target information domain; under the condition that a preset condition is met, a target information field in the first signaling is used for indicating the number of downlink channels contained in the N channel groups, or is used for indicating the number of downlink channels contained in each of the N channel groups;

the preset conditions include:

Correspondingly, an embodiment of the present invention provides a method for receiving a downlink control signaling, as shown in fig. 3, including:

step 31: the network equipment sends a first signaling; the first signaling is used for indicating the terminal equipment to transmit a first uplink channel; the first signaling comprises a target information domain; under the condition that a preset condition is met, a target information field in the first signaling is used for indicating the number of downlink channels contained in the N channel groups, or is used for indicating the number of downlink channels contained in each of the N channel groups;

the preset conditions include:

In this embodiment, the terminal device may support multiple channel groups, and in a preferred example, the terminal device supports two channel groups.

The aforementioned first signaling may be carried by Downlink Control Information (DCI). The second signaling may also be carried by the DCI. To represent the distinction, DCI carrying the first signaling may be referred to as first DCI, and DCI carrying the second signaling may be referred to as second DCI.

The target information field in the first signaling is used to indicate the number of downlink channels included in the N channel groups, or is used to indicate the number of downlink channels included in each of the N channel groups, and may be understood as:

the target information field in the first signaling is used for carrying information used for indicating the number of downlink channels included in the N channel groups, or is used for carrying information used for indicating the number of downlink channels included in each of the N channel groups.

The following describes embodiments of the present application with reference to a number of examples:

examples 1, 1,

And the terminal equipment receives the second signaling, and before the terminal equipment receives the first signaling, the second signaling is received. That is, the network device sends the second signaling before sending the first signaling. In this example, the second uplink channel at least partially overlaps with the first uplink channel in the time domain.

The first Uplink CHannel may be a Physical Uplink Shared CHannel (PUSCH) scheduled by the first DCI and transmitted in the time slot a. The second Uplink CHannel may be a Physical Uplink Control CHannel (PUCCH) transmitted in a time slot b indicated by the second DCI. Wherein the time slots a and b at least partially overlap. For example, the time slots a and b may be the same or partially the same. The feedback information may be Acknowledgement (ACK)/non-acknowledgement (NACK) information. The target information field may be a Downlink Assignment Index (DAI) included in the first signaling (i.e., the first DCI). That is, the DCI includes a DAI information field, which is referred to as a target information field.

The method further comprises: the terminal equipment transmits a feedback information codebook through the first uplink channel; wherein the feedback information codebook comprises feedback information corresponding to the M channel groups; the number of bits included in the feedback information codebook is determined according to the content indicated by the target information field.

Regarding the number of bits contained in the feedback information codebook, a first numerical value can be obtained by multiplying the number of channels corresponding to the M channel groups by a corresponding preset value; the first value is used as the bit number contained in the feedback information codebook. The corresponding preset value may be the number of bits included in the transport block, or may be another number, which is not exhaustive here.

For example, the terminal device transmits the ACK/NACK feedback information in a channel group manner. The terminal supports two channel groups. And the terminal receives a second DCI, wherein the second DCI is used for instructing the terminal to transmit ACK/NACK information corresponding to at least one channel group through a PUCCH (namely a second uplink channel) in the time slot n. The terminal device further receives the first DCI, where the first DCI is used to schedule transmission of a PUSCH (i.e., a first uplink channel) in slot n, and the PUSCH and the PUCCH at least partially overlap in a time domain. When processing delay (processing time) is satisfied, transmitting a feedback information codebook (ACK/NACK codebook) in a PUSCH (namely a first uplink channel);

wherein the ACK/NACK codebook includes ACK/NACK information corresponding to the at least one channel group.

The size of the ACK/NACK codebook (i.e., the number of bits included therein) is determined according to a dai (downlink assignment index) target information field in the first DCI.

Further, the number of downlink channels included in the N channel groups,

for several cases, when N is equal to 1, the number of downlink channels included in the N channel groups is: the number of downlink channels included in a first channel group, and the M channel groups include the first channel group.

And when N is greater than 1, the total number of downlink channels contained in the N channel groups. For example, if N is 2, the total number of all downlink channels included in the two channel groups is defined.

If N is 1, the target information field (i.e., DAI information field) is used to indicate the number of downlink channels included in the first channel group, then the following cases can be classified:

one of the situations is: if the at least one channel group only comprises one channel group, taking the channel group as a first channel group, and correspondingly, the DAI indicates the number of downlink channels included in the first channel group;

or,

in the second case: if the at least one channel group comprises two channel groups (or more than two channel groups), the DAI indicates the number of downlink channels included in the first channel group.

For the second case, the first channel group may be one of the following:

the downlink channel scheduled by the second signaling or the channel group to which the downlink channel carrying the second signaling belongs; that is to say, the first channel group is a channel group to which a downlink channel scheduled by the second DCI belongs, or the first channel group is a channel group to which a downlink channel carrying the second DCI belongs.

Or, a channel group other than the channel group to which the downlink channel scheduled by the second signaling belongs; that is, the first channel group is a channel group other than the channel group to which the downlink channel scheduled by the second DCI belongs;

or, an agreed channel group.

Specifically, in one case, the second signaling may also indicate a corresponding second uplink channel while scheduling the downlink channel, so that the first channel group may correspond to the channel group to which the downlink channel scheduled by the second signaling belongs, or may be the channel group to which the downlink channel carrying the second signaling belongs.

In another case, the first channel group may be any channel group except the channel group to which the downlink channel scheduled by the second signaling belongs. For example, if the terminal supports two channel groups, the two channel groups are respectively denoted as channel group 1 and channel group 2; if the channel group to which the downlink channel scheduled by the second signaling belongs may be the channel group 1, the first channel group is the channel group 2. For another example, if the channel group supported by the terminal is 3 channel groups, which are respectively denoted as

channel groups

1, 2, and 3; then if the channel group to which the downlink channel scheduled by the second signaling belongs is channel group 1, the first channel group may be either channel group 2 or channel group 3.

In yet another case, the first channel group may be an agreed channel group. Wherein the agreed channel group includes: and the channel group with the largest number or the smallest number in the M channel groups. For example, the terminal supports two channel groups, which are numbered 1 and 2, i.e.

channel groups

1 and 2; if the appointed channel group is the channel group with the maximum number, the first channel group is the channel group 2; if the agreed channel group is the least numbered channel group, then the first channel group is channel group 1.

Regarding the target information field (DAI information field) for indicating the number of downlink channels included in each of the N channel groups, it can be understood that:

the number of downlink channels included in the target information field is used to indicate the number of downlink channels included in each of the N channel groups.

When N is 1, it can also be understood as a brushing of the downlink channels included in the first channel group.

When N is greater than 1, taking N ═ 2 as an example for explanation, the DAI information field, that is, the target information field, may be further divided into two sub-parts, which are denoted as sub-DAI1 and 2, respectively; wherein, the sub-DAI1 is used for indicating the number of downlink channels included in the channel group 1, and the sub-DAI 2 is used for indicating the number of downlink channels included in the channel group 2.

On the basis of the foregoing, as to how to determine the content indicated in the target information field of the first signaling, what the content specifically contained in the target information field in the first signaling is indicated by using another specified information field (i.e. specified bit field) in the second signaling except for the target information field may be divided into several ways:

mode 1, if the target information field in the first signaling contains the total number of downlink channels contained in the N channel groups; no indication may be made in the second signaling as long as the content, which is the total amount, is directly extracted from the target information field of the first signaling.

Mode 2,

The second signaling comprises first information, and the first information is used for indicating the target information field of the first signaling and is used for indicating the number of downlink channels contained in each of the N channel groups.

That is, what the content indicated by the target information field contained in the first signaling is indicated by the first information contained in the second signaling. The specific first information may include L bit values at specified bit positions in the second signaling, and further, if the L bit values of the first information are preset values, it may be determined that the first information of the second signaling is used to indicate, in the first signaling, the number of downlink channels included in each of the N channel groups indicated by the target information field.

Mode 3,

The second signaling comprises second information, and the second information is used for indicating that the target information field of the first signaling is used for indicating the number of downlink channels included in a channel group to which the downlink channels scheduled by the second signaling belong.

That is, what the contents indicated by the target information field contained in the first signaling are is indicated by the second information contained in the second signaling. The specific second information may include K bit values at designated bit positions in the second signaling, and further, if the K bit values of the second information are preset values, it may be determined that the second information of the second signaling is used to indicate the number of downlink channels included in a channel group to which the downlink channel scheduled for the second signaling belongs, which is indicated by the target information field in the first signaling.

In the method 4, the second signaling may include third information, which is used to indicate that the target information field included in the first signaling is used to indicate that the first channel group is a channel group other than the channel group to which the downlink channel scheduled by the second DCI belongs.

In combination with the foregoing several manners, the bits in which the first information, the second information, and the third information are located may be the same, for example, the first information is a first value of the bit, the second information may be a second value of the bit, assuming that a bit value of the specified bit is 01, the specified bit may be considered as the first information, and if the bit value is 10, the specified bit may be considered as the second information.

To explain this example with reference to fig. 4-1, when receiving a first DCI, where the target information field DAI is included and the number of included channels is indicated to be 6, that is, the number of downlink channels included in a first channel Group (for example, Group 1 in the figure). In addition, the first DCI also indicates a slot of a first uplink channel, and the first uplink channel is a PUSCH in the figure. Before the first DCI is received, the terminal device also receives a second DCI, where the second DCI is used to indicate that feedback information of multiple channels is transmitted through a second uplink channel (PUCCH in the figure). The figure illustrates that PUCCH and PUSCH overlap in the time domain. In the figure, there may be a plurality of corresponding second DCIs in the first channel group, and each second DCI counts the number of downlink channels in the first channel group, for example, when the DCI is transmitted for the first time, the DAI count is 1 until the transmission for the 6 th time, that is, the DAI count is 6 in the figure. Based on the foregoing description, after receiving the first DCI, the feedback codebook is transmitted on a first uplink channel (PUSCH).

Example 2 is the same as example 1 in that the terminal device transmits ACK/NACK feedback information in a channel group manner. The terminal supports two channel groups. The difference from example 1 is that, in this example, in the case where a preset condition is not satisfied, the target information field is a reserved information field; or, the target information field is used for carrying information irrelevant to the number of downlink channels included in the at least one channel group.

That is:

the target information domain is a reserved information domain under the condition that the terminal equipment does not receive a second signaling; or, the target information field is used for carrying information irrelevant to the number of downlink channels included in the at least one channel group.

Or, in the case that the terminal device receives the second signaling, the second uplink channel indicated by the second signaling and the first uplink channel indicated by the first signaling are not overlapped in the time domain, and the target information domain is a reserved information domain; or, the target information field is used for carrying information irrelevant to the number of downlink channels included in the at least one channel group.

For example, the terminal receives a first DCI, where the first DCI is used to schedule transmission of a PUSCH in slot n, and a PUCCH without ACK/NACK in slot n at least partially overlaps with the PUSCH in a time domain. And the terminal only transmits the PUSCH at the moment.

A DAI information field in the first DCI:

reserving an information domain; the reserved information field is an information field in which the content of the terminal device is not read, or an information field in which the content of the terminal device is not executed. That is, the terminal device may not read the information field, or read but not perform the operation corresponding to the content of the reserved information field.

Or, the information may be used to indicate other information, i.e., information that is not related to the number of downlink channels included in the at least one channel group. For example: the physical channel priority information, the coding level table information, the CBG coding block group information, the PUSCH physical resource information, ACK/NACK information for instructing the terminal to transmit all HARQ processes, and the like, but are not limited thereto.

The present example is explained with reference to fig. 4-2, and is different from fig. 4-1 in that PUCCH and PUSCH are not overlapped in time domain as illustrated in fig. 4-2. Then the feedback codebook may be transmitted in the PUCCH, i.e. the second uplink channel, based on the indication of the second DCI, while the DAI field in the first DCI is the reserved information field.

Therefore, by adopting the above scheme, it can be determined whether the target information field in the first signaling contains the number of downlink channels according to the received second signaling, and under the condition that the preset condition is met, it can be determined that the target information field of the first signaling indicates the number of downlink channels. The method can determine that feedback information corresponding to a plurality of channel groups needs to be sent under the condition that a preset condition is met, so that the problems that the system efficiency is influenced and the DCI indicating efficiency is reduced due to the fact that feedback is triggered each time the first signaling is sent are solved; in addition, the above mode has no limitation on the number of the downlink channels of the target information domain, so that the problem of scheduling limitation is avoided.

An embodiment of the present invention provides a terminal device, as shown in fig. 5, including:

a first communication unit 51 that receives a first signaling; the first signaling is used for indicating the terminal equipment to transmit a first uplink channel; the first signaling comprises a target information domain; under the condition that a preset condition is met, a target information field in the first signaling is used for indicating the number of downlink channels contained in the N channel groups, or is used for indicating the number of downlink channels contained in each of the N channel groups;

the preset conditions include:

receiving a second signaling, wherein a second uplink channel scheduled in the second signaling at least partially overlaps with the first uplink channel in a time domain, the second uplink channel is used for transmitting feedback information corresponding to M channel groups, N, M is a positive integer, and N is less than or equal to M.

Accordingly, an embodiment of the present invention provides a network device, as shown in fig. 6, including:

a second communication unit 61 that transmits the first signaling; the first signaling is used for indicating the terminal equipment to transmit a first uplink channel; the first signaling comprises a target information domain; under the condition that a preset condition is met, a target information field in the first signaling is used for indicating the number of downlink channels contained in the N channel groups, or is used for indicating the number of downlink channels contained in each of the N channel groups;

the preset conditions include:

examples 1, 1,

The first communication unit 51 receives the second signaling and receives the second signaling before the terminal device receives the first signaling. That is, the second communication unit 61 transmits the second signaling before transmitting the first signaling. In this example, the second uplink channel at least partially overlaps with the first uplink channel in the time domain.

The first communication unit 51 transmits a feedback information codebook through the first uplink channel; wherein the feedback information codebook comprises feedback information corresponding to the M channel groups; the number of bits included in the feedback information codebook is determined according to the content indicated by the target information field.

Further, the number of downlink channels included in the N channel groups is:

The first channel group may be one of:

or, an agreed channel group.

Mode 2,

Mode 3,

In the method 4, the second signaling may include third information, which is used to indicate that the content indicated by the target information field included in the first signaling is a channel group other than the channel group to which the first channel group belongs, where the downlink channel scheduled by the second DCI belongs.

That is:

Or, under the condition that the terminal device receives the second signaling, the second uplink channel indicated by the second signaling and the first uplink channel indicated by the first signaling are not overlapped in the time domain, and the target information domain is a reserved information domain; the reserved information field is an information field in which the content of the terminal device is not read, or an information field in which the content of the terminal device is not executed. That is, the terminal device may not read the information field, or read but not perform the operation corresponding to the content of the reserved information field.

Or, the target information field is used for carrying information irrelevant to the number of downlink channels included in the at least one channel group.

Therefore, by adopting the scheme, whether the target information domain in the first signaling contains the number of the downlink channels can be determined according to the received second signaling. Therefore, the interpretation method for the target information domain of the first signaling is determined through the triggering of the second signaling, and the scheduling limitation problem caused by the limitation on the number of the target information domains is avoided.

And when the second uplink channel is not triggered, the target information domain can be used for indicating the additional information, so that the DCI indicating efficiency is improved.

In another embodiment, as shown in fig. 7, a method for receiving downlink control signaling includes:

step 71: the terminal equipment receives a first signaling; the first signaling comprises a first information domain and a second information domain; the first information field is used for indicating the number of downlink channels contained in a target channel group; the second information field is used for indicating that the target channel group indicated by the first information field is one of at least two channel groups.

Correspondingly, a method for receiving downlink control signaling, as shown in fig. 8, includes:

step 81: the network equipment sends a first signaling; the first signaling comprises a first information domain and a second information domain; the first information field is used for indicating the number of downlink channels contained in a target channel group to terminal equipment; the second information field is used for indicating that the target channel group indicated by the first information field is one of at least two channel groups.

For example, the terminal transmits the ACK/NACK feedback information in a channel group manner. The terminal supports two channel groups. The DAI in the UL grant (first DCI) is used to indicate the number of PDSCHs included in one group. The UL grant includes a first information field, where the first information field is used to indicate that the DAI is used to indicate which group of the two channel groups includes the number of PDSCHs.

In another embodiment, a terminal device, as shown in fig. 5, includes:

a first communication unit 51 that receives a first signaling; the first signaling comprises a first information domain and a second information domain; the first information field is used for indicating the number of downlink channels contained in a target channel group; the second information field is used for indicating that the target channel group indicated by the first information field is one of at least two channel groups.

Accordingly, a network device, as shown in fig. 6, includes:

a second communication unit 61 that transmits the first signaling; the first signaling comprises a first information domain and a second information domain; the first information field is used for indicating the number of downlink channels contained in a target channel group to terminal equipment; the second information field is used for indicating that the target channel group indicated by the first information field is one of at least two channel groups.

Fig. 9 is a schematic structural diagram of a communication device 900 according to an embodiment of the present invention, where the communication device in this embodiment may be embodied as a terminal device in the foregoing embodiment. The communication device 900 shown in fig. 9 includes a processor 910, and the processor 910 can call and run a computer program from a memory to implement the method in the embodiment of the present invention.

Optionally, as shown in fig. 9, the communication device 900 may further include a memory 920. From the memory 920, the processor 910 may call and execute a computer program to implement the method in the embodiment of the present invention.

The memory 920 may be a separate device from the processor 910, or may be integrated in the processor 910.

Optionally, as shown in fig. 9, the communication device 900 may further include a transceiver 930, and the processor 910 may control the transceiver 930 to communicate with other devices, and specifically, may transmit information or data to the other devices or receive information or data transmitted by the other devices.

The transceiver 930 may include a transmitter and a receiver, among others. The transceiver 930 may further include one or more antennas.

Optionally, the communication device 900 may specifically be a network device according to the embodiment of the present invention, and the communication device 900 may implement a corresponding process implemented by the network device in each method according to the embodiment of the present invention, which is not described herein again for brevity.

Optionally, the communication device 900 may specifically be a terminal device or a network device in the embodiment of the present invention, and the communication device 900 may implement a corresponding process implemented by a mobile terminal/a terminal device in each method in the embodiment of the present invention, and for brevity, details are not described here again.

Fig. 10 is a schematic structural diagram of a chip of an embodiment of the present invention. The chip 1000 shown in fig. 10 includes a processor 1010, and the processor 1010 may call and execute a computer program from a memory to implement the method in the embodiment of the present invention.

Optionally, as shown in fig. 10, the chip 1000 may further include a memory 1020. From memory 1020, processor 1010 may retrieve and execute computer programs to implement the methods of embodiments of the present invention.

The memory 1020 may be a separate device from the processor 1010 or may be integrated into the processor 1010.

Optionally, the chip 1000 may further include an input interface 1030. The processor 1010 may control the input interface 1030 to communicate with other devices or chips, and specifically may obtain information or data transmitted by the other devices or chips.

Optionally, the chip 1000 may further include an output interface 1040. The processor 1010 may control the output interface 1040 to communicate with other devices or chips, and may particularly output information or data to the other devices or chips.

Optionally, the chip may be applied to the network device in the embodiment of the present invention, and the chip may implement the corresponding process implemented by the terminal device in each method in the embodiment of the present invention, and for brevity, details are not described here again.

It should be understood that the chips mentioned in the embodiments of the present invention may also be referred to as a system-on-chip, a system-on-chip or a system-on-chip.

It should be understood that the processor of embodiments of the present invention may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The Processor may be a general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.

It will be appreciated that the memory in embodiments of the invention may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of example, but not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic random access memory (DDR SDRAM), Enhanced Synchronous SDRAM (ESDRAM), Synchronous link SDRAM (SLDRAM), and Direct Rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

It should be understood that the above memories are exemplary but not limiting illustrations, for example, the memories in the embodiments of the present invention may also be Static Random Access Memory (SRAM), dynamic random access memory (dynamic RAM, DRAM), Synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (enhanced SDRAM, ESDRAM), Synchronous Link DRAM (SLDRAM), Direct Rambus RAM (DR RAM), and the like. That is, the memory in the embodiments of the present invention is intended to comprise, without being limited to, these and any other suitable types of memory.

Fig. 11 is a schematic block diagram of a communication system 800 provided in an embodiment of the present application. As shown in fig. 11, the communication system 800 includes a terminal device 810 and a network device 820.

The terminal device 810 may be configured to implement the corresponding function implemented by the UE in the foregoing method, and the network device 820 may be configured to implement the corresponding function implemented by the network device in the foregoing method, which is not described herein again for brevity.

The embodiment of the invention also provides a computer readable storage medium for storing the computer program.

Optionally, the computer-readable storage medium may be applied to a network device or a terminal device in the embodiment of the present invention, and the computer program enables a computer to execute corresponding processes implemented by the network device in each method in the embodiment of the present invention, which is not described herein again for brevity.

Embodiments of the present invention also provide a computer program product, which includes computer program instructions.

Optionally, the computer program product may be applied to a network device or a terminal device in the embodiment of the present invention, and the computer program instruction enables a computer to execute corresponding processes implemented by the network device in each method in the embodiment of the present invention, which is not described herein again for brevity.

The embodiment of the invention also provides a computer program.

Optionally, the computer program may be applied to the network device or the terminal device in the embodiment of the present invention, and when the computer program runs on a computer, the computer is enabled to execute corresponding processes implemented by the network device in the methods in the embodiment of the present invention, which is not described herein again for brevity.

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 invention.

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

In the embodiments provided in the present invention, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed 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 can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into 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 such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

A method for receiving downlink control signaling comprises the following steps:

the terminal equipment receives a first signaling;

the first signaling is used for indicating the terminal equipment to transmit a first uplink channel; under the condition that a preset condition is met, a target information field in the first signaling is used for indicating the number of downlink channels contained in the N channel groups, or is used for indicating the number of downlink channels contained in each of the N channel groups;

the preset conditions include:

the terminal device receives a second signaling, and a second uplink channel scheduled by the second signaling at least partially overlaps with the first uplink channel in a time domain, where the second uplink channel is used to transmit feedback information corresponding to M channel groups, N, M is a positive integer, and N is less than or equal to M.
The method according to claim 1, wherein, in case a preset condition is not satisfied,

the target information domain is a reserved information domain;

or,

the target information field is used for carrying information irrelevant to the number of downlink channels contained in the at least one channel group.
The method of claim 2, wherein the reserved information field is an information field for which the terminal device does not read its content or an information field for which the terminal device does not execute its content.
The method of claim 1, wherein the method further comprises:

and before the terminal equipment receives the first signaling, receiving the second signaling.
The method of claim 1 or 4, wherein the method further comprises:

the terminal equipment transmits a feedback information codebook through the first uplink channel;

wherein the feedback information codebook comprises feedback information corresponding to the M channel groups;

the number of bits included in the feedback information codebook is determined according to the target information field.
The method of claim 1, wherein,

the M channel groups include the N channel groups.
The method according to any one of claims 1, 4, 5, and 6, wherein when N is equal to 1, the number of downlink channels included in the N channel groups is: the number of downlink channels included in a first channel group, and the M channel groups include the first channel group.
The method of claim 7, wherein the first channel group is:

the downlink channel scheduled by the second signaling or the channel group to which the downlink channel carrying the second signaling belongs;

or, a channel group other than the channel group to which the downlink channel scheduled by the second signaling belongs;

or, an agreed channel group.
The method of claim 8, wherein,

the second signaling includes first information, where the first information is used to indicate that the target information field is used to indicate the number of downlink channels included in each of the N channel groups.
The method of claim 8, wherein,

the second signaling comprises second information, and the second information is used for indicating the target information field to indicate the number of downlink channels included in a channel group to which the downlink channel scheduled by the second signaling belongs.
The method of claim 8, wherein the agreed channel group comprises:

and the channel group with the largest number or the smallest number in the M channel groups.
A method for receiving downlink control signaling comprises the following steps:

the network equipment sends a first signaling;

the first signaling is used for indicating the terminal equipment to transmit a first uplink channel; under the condition that a preset condition is met, a target information field in the first signaling is used for indicating the number of downlink channels contained in the N channel groups, or is used for indicating the number of downlink channels contained in each of the N channel groups;

the preset conditions include:

and sending a second signaling to the terminal device, where a second uplink channel scheduled by the second signaling at least partially overlaps with the first uplink channel in a time domain, the second uplink channel is used to transmit feedback information corresponding to M channel groups, N, M is a positive integer, and N is less than or equal to M.
The method according to claim 12, wherein, in case a preset condition is not satisfied,

the target information domain is a reserved information domain; or, the target information field is used for carrying information irrelevant to the number of downlink channels included in the at least one channel group.
The method of claim 12, wherein the method further comprises:

the network device sends the second signaling before sending the first signaling.
The method of claim 12 or 14, wherein the method further comprises:

the network equipment receives a feedback information codebook through the first uplink channel;

wherein the feedback information codebook comprises feedback information corresponding to the M channel groups;

the number of bits included in the feedback information codebook is determined according to the content indicated by the target information field.
The method of claim 12, wherein,

the M channel groups include the N channel groups.
The method according to any one of claims 12, 14, 15, and 16, wherein when N is equal to 1, the number of downlink channels included in the N channel groups is: the number of downlink channels included in a first channel group, and the M channel groups include the first channel group.
The method of claim 17, wherein the first channel group is:

the downlink channel scheduled by the second signaling or the channel group to which the downlink channel carrying the second signaling belongs;

or, a channel group other than the channel group to which the downlink channel scheduled by the second signaling belongs;

or, an agreed channel group.
The method of claim 18, wherein,

the second signaling comprises first information, and the first information is used for indicating the target information field of the first signaling and is used for indicating the number of downlink channels contained in each of the N channel groups.
The method of claim 18, wherein,

the second signaling comprises second information, and the second information is used for indicating that the target information field of the first signaling is used for indicating the number of downlink channels included in a channel group to which the downlink channels scheduled by the second signaling belong.
The method of claim 18, wherein the agreed channel group comprises:

and the channel group with the largest number or the smallest number in the M channel groups.
A terminal device, comprising:

a first communication unit which receives a first signaling;

the first signaling is used for indicating the terminal equipment to transmit a first uplink channel; under the condition that a preset condition is met, a target information field in the first signaling is used for indicating the number of downlink channels contained in the N channel groups, or is used for indicating the number of downlink channels contained in each of the N channel groups;

the preset conditions include:

the terminal device receives a second signaling, and a second uplink channel scheduled by the second signaling at least partially overlaps with the first uplink channel in a time domain, where the second uplink channel is used to transmit feedback information corresponding to M channel groups, N, M is a positive integer, and N is less than or equal to M.
The terminal device according to claim 22, wherein, in case a preset condition is not satisfied,

the target information domain is a reserved information domain; or, the target information field is used for carrying information irrelevant to the number of downlink channels included in the at least one channel group.
The terminal device of claim 23, wherein the reserved information field is an information field for which the terminal device does not read its content or an information field for which the terminal device does not execute its content.
The terminal device of claim 22, wherein the first communication unit receives the second signaling before receiving the first signaling.
The terminal device according to claim 22 or 25, wherein the first communication unit transmits a feedback information codebook through the first uplink channel;

wherein the feedback information codebook comprises feedback information corresponding to the M channel groups;

the number of bits included in the feedback information codebook is determined according to the content indicated by the target information field.
The terminal device of claim 22,

the M channel groups include the N channel groups.
The terminal device according to any one of claims 22, 25, 26, and 27, wherein when N is equal to 1, the number of downlink channels included in the N channel groups is: the number of downlink channels included in a first channel group, and the M channel groups include the first channel group.
The terminal device of claim 28, wherein the first channel group is:

the downlink channel scheduled by the second signaling or the channel group to which the downlink channel carrying the second signaling belongs;

or, a channel group other than the channel group to which the downlink channel scheduled by the second signaling belongs;

or, an agreed channel group.
The terminal device of claim 29, wherein,

the second signaling comprises first information, and the first information is used for indicating the target information field of the first signaling and is used for indicating the number of downlink channels contained in each of the N channel groups.
The terminal device of claim 29, wherein,

the second signaling comprises second information, and the second information is used for indicating that the target information field of the first signaling is used for indicating the number of downlink channels included in a channel group to which the downlink channels scheduled by the second signaling belong.
The terminal device of claim 29, wherein the agreed channel group comprises:

and the channel group with the largest number or the smallest number in the M channel groups.
A network device, comprising:

a second communication unit that transmits the first signaling;

the first signaling is used for indicating the terminal equipment to transmit a first uplink channel; under the condition that a preset condition is met, a target information field in the first signaling is used for indicating the number of downlink channels contained in the N channel groups, or is used for indicating the number of downlink channels contained in each of the N channel groups;

the preset conditions include:

and sending a second signaling to the terminal device, where a second uplink channel scheduled by the second signaling at least partially overlaps with the first uplink channel in a time domain, the second uplink channel is used to transmit feedback information corresponding to M channel groups, N, M is a positive integer, and N is less than or equal to M.
The network device of claim 33, wherein, in the event that a preset condition is not met,

the target information domain is a reserved information domain; or, the target information field is used for carrying information irrelevant to the number of downlink channels included in the at least one channel group.
The network device of claim 33, wherein the second communication unit transmits the second signaling before transmitting the first signaling.
The network device of claim 33 or 35, wherein the second communication unit receives a feedback information codebook through the first uplink channel;

wherein the feedback information codebook comprises feedback information corresponding to the M channel groups;

the number of bits included in the feedback information codebook is determined according to the content indicated by the target information field.
The network device of claim 33,

the M channel groups include the N channel groups.
The network device according to any one of claims 33, 35, 36, and 37, wherein when N is equal to 1, the number of downlink channels included in the N channel groups is: the number of downlink channels included in a first channel group, and the M channel groups include the first channel group.
The network device of claim 38, wherein the first channel group is:

the downlink channel scheduled by the second signaling or the channel group to which the downlink channel carrying the second signaling belongs;

or, a channel group other than the channel group to which the downlink channel scheduled by the second signaling belongs;

or, an agreed channel group.
The network device of claim 39,

the second signaling comprises first information, and the first information is used for indicating that the content indicated by the target information field of the first signaling is the number of downlink channels included in each of the N channel groups.
The network device of claim 39,

the second signaling comprises second information, and the second information is used for indicating that the content indicated by the target information field of the first signaling is the number of downlink channels included in a channel group to which the downlink channels scheduled by the second signaling belong.
The network device of claim 39, wherein the agreed channel group comprises:

and the channel group with the largest number or the smallest number in the M channel groups.
A method for receiving downlink control signaling comprises the following steps:

the terminal equipment receives a first signaling; the first signaling comprises a first information domain and a second information domain;

the first information field is used for indicating the number of downlink channels contained in a target channel group; the second information field is used for indicating that the target channel group indicated by the first information field is one of at least two channel groups.
A method for receiving downlink control signaling comprises the following steps:

the network equipment sends a first signaling; the first signaling comprises a first information domain and a second information domain;

the first information field is used for indicating the number of downlink channels contained in a target channel group to terminal equipment; the second information field is used for indicating that the target channel group indicated by the first information field is one of at least two channel groups.
A terminal device, comprising:

a first communication unit which receives a first signaling; the first signaling comprises a first information domain and a second information domain;

the first information field is used for indicating the number of downlink channels contained in a target channel group; the second information field is used for indicating that the target channel group indicated by the first information field is one of at least two channel groups.
A network device, comprising:

a second communication unit that transmits the first signaling; the first signaling comprises a first information domain and a second information domain;

the first information field is used for indicating the number of downlink channels contained in a target channel group to terminal equipment; the second information field is used for indicating that the target channel group indicated by the first information field is one of at least two channel groups.
A terminal device, comprising: a processor and a memory for storing a computer program capable of running on the processor,

wherein the memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory to execute the steps of the method according to any one of claims 1-11 and 43.
A network device, comprising: a processor and a memory for storing a computer program capable of running on the processor,

wherein the memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory to execute the steps of the method according to any one of claims 12-21 and 44.
A chip, comprising: a processor for calling and running a computer program from a memory so that a device on which the chip is installed performs the method of any of claims 1-11, 43.
A chip, comprising: a processor for calling and running a computer program from a memory so that a device on which the chip is installed performs the method of any of claims 12-21, 44.
A computer readable storage medium for storing a computer program for causing a computer to perform the steps of the method of any one of claims 1-21, 43, 44.
A computer program product comprising computer program instructions to cause a computer to perform the method of any one of claims 1-21, 43, 44.
A computer program for causing a computer to perform the method of any one of claims 1-21, 43, 44.