CN109152084B

CN109152084B - Message sending method and device

Info

Publication number: CN109152084B
Application number: CN201710459100.4A
Authority: CN
Inventors: 李新县; 唐浩; 唐臻飞; 汪凡
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2017-06-16
Filing date: 2017-06-16
Publication date: 2021-10-26
Anticipated expiration: 2037-06-16
Also published as: CN109152084A

Abstract

The present application provides a method and apparatus for sending a message. The method includes: receiving a random access request sent by a terminal device on a physical random access channel PRACH resource, the PRACH resource being indicated by the remaining minimum system message RMSI; according to a preset The corresponding relationship is determined, and the resource for sending the information of the random access response RAR is determined. RAR control information and/or RAR data information. The embodiments of the present application can improve the communication performance of the communication system.

Description

Message sending method and device

Technical Field

The present application relates to communications technologies, and in particular, to a method and an apparatus for sending a message.

Background

Generally, during the process of accessing the carrier by the terminal device, cell search, cell system information acquisition and random access processes are required. In the cell search process, a SS Block including a synchronization signal and a Master Information Block (MIB) is required to be blind-detected, and then the UE receives system messages sent by the base station, such as Remaining Minimum System Information (RMSI) and Other system messages (OSI), and finally accesses to the carrier through a random access process. However, the random access performance of the existing communication system is still to be further improved.

Disclosure of Invention

The application provides a message sending method and device, which are used for improving the communication performance of a communication system.

In a first aspect, an embodiment of the present application provides a method for sending a message, including:

receiving a random access request sent by a terminal device on a Physical Random Access Channel (PRACH) resource, wherein the PRACH resource is indicated by a residual minimum system message (RMSI);

determining a resource for sending information about a Random Access Response (RAR) according to a preset corresponding relationship, wherein the corresponding relationship comprises a corresponding relationship between any one RMSI in a plurality of RMSIs and PRACH configuration information;

and sending the control information of the RAR and/or the data information of the RAR to the terminal equipment on the resource.

A broadband carrier may include multiple RMSIs, and a corresponding relationship between any one of the multiple RMSIs and PRACH configuration information is locally stored in the base station, that is, for each RMSI, there is a corresponding relationship between the RMSI and the PRACH configuration information.

In the method for sending a message provided in the first aspect of the present application, a base station determines, by receiving a random access request sent by a terminal device on PRACH resources, and according to a preset correspondence, a resource for sending information on a random access response RAR, and sends, to the terminal device, control information of the RAR and/or data information of the RAR on the determined resource, where the PRACH resource is indicated by an RMSI, and the preset correspondence includes a correspondence between any one RMSI of a plurality of RMSIs and PRACH configuration information. The base station can determine the RMSI indicating the PRACH resource according to the corresponding relation between any one of the preset RMSIs and the PRACH configuration information, so that the resource sending the information about the RAR can be obtained, and the control information of the RAR and/or the data information of the RAR are sent to the terminal equipment on the resource, thereby improving the communication performance of the system.

Optionally, the PRACH configuration information includes at least one of the following information: accessing a preamble sequence, a time domain position of the PRACH resource or a frequency domain position of the PRACH resource.

Optionally, the PRACH configuration information indicated by different RMSIs satisfies at least one of the following conditions: different access preamble sequences, different time domain positions of the PRACH resources, or different frequency domain positions of the PRACH resources.

In this scheme, since the PRACH configuration information includes at least one of an access preamble sequence, a time domain position of a PRACH resource, or a frequency domain position of the PRACH resource, and for a plurality of RMSIs included in a carrier, each RMSI corresponds to the PRACH configuration information, in order to distinguish PRACH resources indicated in different RMSIs, PRACH configuration information indicated in different RMSIs is generally made to satisfy at least one of the following conditions: different access preamble sequences, different time domain positions of the PRACH resources, or different frequency domain positions of the PRACH resources.

Optionally, the resource is a control resource set and/or a resource for sending data information of the RAR, and the bandwidth portion where the resource is located is the bandwidth portion where the RMSI is located, the bandwidth portion indicated in the RMSI, or the bandwidth portion of the control resource set where the RMSI is indicated.

In this scheme, the control information of the RAR is sent in the control resource set corresponding to the RAR, and the scheduling information of the data information of the RAR, such as a modulation and demodulation policy, allocated resources, and the like, is indicated in the control information of the RAR. The frequency domain positions of the data information of the RARs indicated in different RAR control resource sets may be the same and may be different. The control resource set corresponding to the RAR may be sent in the bandwidth part where the RMSI is located or the bandwidth part indicated in the RMSI or the bandwidth part of the control resource set indicating the RMSI, and the data of the RAR may be sent in the bandwidth part where the RMSI is located or the bandwidth part indicated in the RMSI or the bandwidth part of the control resource set indicating the RMSI. The bandwidth part in which the RMSI is located refers to a bandwidth part for transmitting scheduling information of the RMSI and transmitting RMSI data.

The bandwidth part indicated in the RMSI is a bandwidth part where a base station indicates, in the RMSI, a resource for sending RAR control information, when the terminal device accesses a carrier, where the resource is a control resource set.

The bandwidth part indicating the control resource set of the RMSI means that when the terminal device accesses a carrier, the control resource set used for sending the RMSI may be indicated in a master information block, and the master information block is included in the SS block, so that the bandwidth part is the part where the SS block is located.

Optionally, the PRACH configuration information includes a time domain location of a PRACH resource; a format of an access preamble sequence corresponds to at least one corresponding relation, the corresponding relation comprises a corresponding relation between any one RMSI in a plurality of RMSIs and the time domain position of the PRACH resource, and the time domain positions of the PRACH resource corresponding to different RMSIs are different.

In the scheme, one format of the access preamble sequence corresponds to one grouping mode, that is, each format has an independent grouping mode, and after the time domain position of the PRACH resource is divided, the divided time domain position group of the PRACH resource corresponds to the RMSI, so that one format of the access preamble sequence corresponds to at least one corresponding relationship. In addition, the different format packets may be the same or different. And the PRACH resources used for a packet are the same for each format.

Optionally, the PRACH configuration information includes a frequency domain location of a PRACH resource; a format of an access preamble sequence corresponds to at least one corresponding relation, the corresponding relation comprises a corresponding relation between any one RMSI in a plurality of RMSIs and the frequency domain position of the PRACH resource, and the frequency domain positions of the PRACH resource corresponding to different RMSIs are different.

In the scheme, one format of an access preamble sequence corresponds to one grouping mode, that is, each format has an independent grouping mode, and after the frequency domain position of the PRACH resource is divided, the divided frequency domain position group of the PRACH resource corresponds to the RMSI.

Optionally, the PRACH configuration information includes an access preamble sequence;

determining a resource for sending information about a Random Access Response (RAR) according to a preset corresponding relation, wherein the resource comprises:

according to the corresponding relation between the RMSI and the access leader sequence, the RMSI corresponding to the access leader sequence included in the random access request is determined, and the access leader sequences corresponding to different RMSIs are different;

and determining the bandwidth part where the RMSI is located, the bandwidth part indicated in the RMSI, or the bandwidth part indicating the control resource set of the RMSI as the bandwidth part where the resource for sending the information of the RAR is located.

In the scheme, if m access preamble sequences are generated on a carrier and the access preamble sequences with different indexes are mutually orthogonal, that is, the access preamble sequences with different indexes are different, the base station can group the m access preamble sequences, for example, divide the m access preamble sequences into n mutually orthogonal access preamble sequence groups; and associating the grouped access preamble sequence groups with the RMSI, wherein the access preamble sequences in each group are different, namely no intersection exists, wherein m and n are positive integers, and the value of n is greater than or equal to the number of the RMSIs contained in the carrier. After associating the grouped access preamble sequence groups with the RMSIs, for each RMSI on the wideband carrier, there exists at least one preamble sequence group associated with it. In this way, after determining the access preamble sequence in the random access request, the base station may determine the group to which the access preamble sequence belongs, so as to determine the RMSI associated with the access preamble sequence group, and use resources in a bandwidth portion in which the RMSI is located, a bandwidth portion indicated in the RMSI, or a bandwidth portion of a control resource set indicating the RMSI for transmitting RAR.

Optionally, the PRACH configuration information includes a time domain location of a PRACH resource;

determining a target time domain position of the PRACH resource receiving the random access request;

determining RMSI corresponding to the target time domain position according to the corresponding relation between the RMSI and the time domain position of the PRACH resource; different time domain positions of the PRACH resources corresponding to different RMSIs are different;

Optionally, the PRACH configuration information includes a frequency domain location of a PRACH resource;

determining a target frequency domain position of the PRACH resource for receiving the random access request;

determining RMSI corresponding to the target frequency domain position according to the corresponding relation between the RMSI and the time domain position of the PRACH resource; the frequency domain positions of the PRACH resources corresponding to different RMSIs are different;

In a second aspect, an embodiment of the present application provides a method for sending a message, including:

sending a random access request to a base station on a Physical Random Access Channel (PRACH) resource, wherein the PRACH resource is indicated by a residual minimum system message RMSI;

and receiving the control information of the random access response RAR and/or the data information of the RAR sent by the base station on the resources.

In the message sending method provided by the second aspect of the present application, a base station determines, by receiving a random access request sent by a terminal device on PRACH resource, a resource for sending information on a random access response RAR according to a preset correspondence, and sends control information of the RAR and/or data information of the RAR to the terminal device on the determined resource, where the PRACH resource is indicated by an RMSI, and the preset correspondence includes a correspondence between any one RMSI of a plurality of RMSIs and PRACH configuration information. The base station can determine the RMSI indicating the PRACH resource according to the corresponding relation between any one of the preset RMSIs and the PRACH configuration information, so that the resource sending the information about the RAR can be obtained, and the control information of the RAR and/or the data information of the RAR are sent to the terminal equipment on the resource, thereby improving the communication performance of the system.

Optionally, the PRACH configuration information includes a time domain location of a PRACH resource; the format of any access preamble sequence corresponds to at least one corresponding relation, the corresponding relation comprises the corresponding relation between any one RMSI in the plurality of RMSIs and the time domain position of the PRACH resource, and the time domain positions of the PRACH resource corresponding to different RMSIs are different.

Optionally, the PRACH configuration information includes a frequency domain location of a PRACH resource; the format of any access preamble sequence corresponds to at least one corresponding relation, the corresponding relation comprises a corresponding relation between any one RMSI in the plurality of RMSIs and the frequency domain position of the PRACH resource, and the frequency domain positions of the PRACH resource corresponding to different RMSIs are different.

In a third aspect, an embodiment of the present application provides an apparatus for sending a message, including:

a receiving module, configured to receive a random access request sent by a terminal device on a physical random access channel PRACH resource, where the PRACH resource is indicated by a remaining minimum system message RMSI;

a determining module, configured to determine, according to a preset correspondence relationship, a resource for sending information on a random access response RAR, where the correspondence relationship includes a correspondence relationship between any one of a plurality of RMSIs and PRACH configuration information;

and the sending module is used for sending the control information of the RAR and/or the data information of the RAR to the terminal equipment on the resources.

the determining module is specifically configured to:

The beneficial effects of the message sending apparatus provided in the third aspect and each possible implementation manner of the third aspect may refer to the beneficial effects brought by the first aspect and each possible implementation manner of the first aspect, and are not described herein again.

In a fourth aspect, an embodiment of the present application provides an apparatus for sending a message, including:

a sending module, configured to send a random access request to a base station on a physical random access channel PRACH resource, where the PRACH resource is indicated by a remaining minimum system message RMSI;

and a receiving module, configured to receive control information of a random access response RAR and/or data information of the RAR sent by the base station on the resource.

The beneficial effects of the message sending apparatus provided in the fourth aspect and each possible implementation manner of the fourth aspect may refer to the beneficial effects brought by the second aspect and each possible implementation manner of the second aspect, and are not described herein again.

In a fifth aspect, an embodiment of the present application provides a base station, including: a receiver, a transmitter, a memory, and a processor;

the memory is used for storing program instructions;

the processor is configured to invoke program instructions in the memory to perform the first aspect described above and various possible implementations of the first aspect.

The beneficial effects of the base station provided in the fifth aspect and each possible implementation manner of the fifth aspect may refer to the beneficial effects brought by the first aspect and each possible implementation manner of the first aspect, and are not described herein again.

In a sixth aspect, an embodiment of the present application provides a terminal device, including: a receiver, a transmitter, a memory, and a processor;

the memory is used for storing program instructions;

the processor is adapted to invoke program instructions in the memory to perform the second aspect described above and various possible implementations of the second aspect.

The beneficial effects of the terminal device provided by the sixth aspect and each possible implementation manner of the sixth aspect may refer to the beneficial effects brought by the second aspect and each possible implementation manner of the second aspect, and are not described herein again.

A seventh aspect of the present application provides a message sending apparatus comprising at least one processing element (or chip) for performing the method of the above first aspect.

An eighth aspect of the present application provides a message sending apparatus comprising at least one processing element (or chip) for performing the method of the second aspect above.

A ninth aspect of the present application provides a program for performing the method of the above first aspect when executed by a processor.

A tenth aspect of the present application provides a program for performing the method of the above second aspect when executed by a processor.

An eleventh aspect of the present application provides a program product, such as a computer-readable storage medium, comprising the program of the ninth aspect.

A twelfth aspect of the application provides a program product, such as a computer readable storage medium, comprising the program of the tenth aspect.

A thirteenth aspect of the present application provides a computer-readable storage medium having stored therein instructions, which, when run on a computer, cause the computer to perform the method of the first aspect described above.

A fourteenth aspect of the present application provides a computer-readable storage medium having stored therein instructions, which, when run on a computer, cause the computer to perform the method of the second aspect described above.

In the method and apparatus for sending a message provided in the embodiment of the present application, a base station determines, by receiving a random access request sent by a terminal device on PRACH resources, and according to a preset correspondence, a resource for sending information on a random access response RAR, and sends, to the terminal device, control information of the RAR and/or data information of the RAR on the determined resource, where the PRACH resource is indicated by an RMSI, and the preset correspondence includes a correspondence between any one RMSI of a plurality of RMSIs and PRACH configuration information. The base station can determine the RMSI indicating the PRACH resource according to the corresponding relation between any one of the preset RMSIs and the PRACH configuration information, so that the resource sending the information about the RAR can be obtained, and the control information of the RAR and/or the data information of the RAR are sent to the terminal equipment on the resource, thereby improving the communication performance of the system.

Drawings

Fig. 1 is a schematic configuration diagram of PRACH configuration information;

FIG. 2 is a schematic diagram of an NR system in accordance with an embodiment;

fig. 3 is a signaling flowchart of a first method for sending a message according to an embodiment of the present application;

FIG. 4a is a schematic diagram of a portion of bandwidth where resources are located;

FIG. 4b is another diagram of the portion of the bandwidth where the resource is located;

FIG. 4c is another schematic diagram of a portion of bandwidth in which resources are located;

fig. 5 is a schematic configuration diagram of PRACH configuration information in an embodiment;

fig. 6 is a schematic structural diagram of a first embodiment of a device for sending a message according to the present application;

fig. 7 is a schematic structural diagram of a second apparatus for sending messages according to the present application;

fig. 8 is a schematic structural diagram of a base station according to an embodiment of the present application;

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

fig. 10 is a schematic structural diagram of a message transmission apparatus according to an embodiment of the present application.

Detailed Description

Hereinafter, some terms in the present application are explained to facilitate understanding by those skilled in the art.

1) A terminal device, which may be a wireless terminal or a wired terminal, a wireless terminal may be a device that provides voice and/or data connectivity to a user, a handheld device having wireless connection capability, or other processing device connected to a wireless modem. Wireless terminals, which may be mobile terminals such as mobile telephones (or "cellular" telephones) and computers having mobile terminals, such as portable, pocket, hand-held, computer-included, or vehicle-mounted mobile devices, may communicate with one or more core networks via a Radio Access Network (RAN). Examples of such devices include Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs), and the like. A wireless terminal may also be referred to as a system, a Subscriber Unit (SU), a Subscriber Station (SS), a mobile station (MB), a mobile station (mobile), a Remote Station (RS), an Access Point (AP), a Remote Terminal (RT), an Access Terminal (AT), a User Terminal (UT), a User Agent (UA), a terminal device (UD), or a User Equipment (UE).

2) A base station (e.g., access point) may refer to a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminals. The base station device may also coordinate management of attributes for the air interface. For example, the base station device may be an evolved node b in Long Term Evolution (LTE), a base station in NR (gNB), or an access point, which is not limited in the present application. It should be noted that the base station described in this embodiment may be not only a base station device, but also a relay device, or other network element devices with a base station function.

3) Units in this application refer to functional units or logical units. It may be in the form of software whose function is carried out by a processor executing program code; but may also be in hardware.

4) The term "plurality" means two or more, and the other terms are similar. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.

The message sending method and device according to the embodiments of the present application can be used in various communication systems, such as 3G, 4G communication systems and next generation communication systems, such as global system for mobile communications (GSM), Code Division Multiple Access (CDMA) systems, Time Division Multiple Access (TDMA) systems, Wideband Code Division Multiple Access (WCDMA) systems, frequency division multiple access (frequency division multiple access) systems, FDMA systems, orthogonal frequency division multiple access (orthogonal frequency-division multiple access; OFDMA) systems, single carrier FDMA (SC-FDMA) systems, General Packet Radio Service (GPRS) systems, LTE systems, 5G communication systems (e.g., NR systems), multiple communication technology converged communication systems (e.g., converged communication systems of LTE and NR technologies), and other such communication systems.

Fig. 1 is a schematic configuration diagram of Physical Random Access Channel (PRACH) configuration information, as shown in fig. 1, in an example, the PRACH configuration information in the NR system is indicated in RMSI, after detecting RMSI, the terminal sends a Random Access request to the base station according to PRACH resources indicated in RMSI, and after receiving the Random Access request, the base station sends a Random Access Response (RAR) to the terminal device on a bandwidth portion where the RMSI is located, a bandwidth portion indicated in RMSI, or a bandwidth portion of a control resource set indicating the RMSI. The bandwidth part is a section of continuous resources in a frequency domain, optionally, one bandwidth part comprises continuous K subcarriers, and K is an integer greater than 0; or optionally, one bandwidth part is a frequency domain resource where N non-overlapping continuous physical resource blocks are located, N is an integer greater than 0, and the subcarrier intervals of the physical resource blocks are 15kHz, 30kHz, 60kHz or other subcarrier intervals; or optionally, a bandwidth part is a frequency domain resource where N non-overlapping continuous physical resource block groups are located, one physical resource block group includes M continuous physical resource blocks, N and M are integers greater than 0, and a subcarrier interval of the physical resource blocks is 15kHz, 30kHz, 60kHz or other subcarrier intervals;

however, as shown in fig. 1, in general, one or more SS blocks may be included in one wideband carrier, and one or more RMSIs may also be included in the wideband carrier, when multiple RMSIs are included in one wideband carrier, if PRACH configuration information in different RMSIs intersect, this may result in that the same PRACH resource is indicated in the multiple RMSIs, and if a base station, after receiving a random access request sent by a terminal over the PRACH resource, cannot determine which RMSI is located over a bandwidth portion, a bandwidth portion indicated in the RMSI, or a bandwidth portion of a control resource set indicating the RMSIs, to send control information of an RAR and/or data information of the RAR to the terminal device.

In an embodiment related to the embodiment of the present application, when a wideband carrier includes multiple RMSIs, a base station cannot determine which RMSI is located in a bandwidth portion, a bandwidth portion indicated in the RMSI, or a bandwidth portion indicating a control resource set of the RMSI, and send a control resource set of an RAR and/or data information of the RAR to a terminal device. Fig. 2 is a schematic architecture diagram of an NR system in an embodiment, as shown in fig. 2, taking the NR system as an example, the NR system includes a base station and a terminal device, and in a process of accessing a carrier by the terminal device, the terminal needs to perform cell search, cell system message acquisition, and a random access process. The SS block is required to be detected in a blind mode in the cell searching process, the SS block comprises a synchronization signal and MIB information, and after the SS block is detected in the blind mode, RMSI and OSI sent by a base station can be received and finally accessed into a carrier wave through a random access process. In NR, the PRACH configuration information is indicated in RMSI, the terminal device sends a random access request to the base station according to the PRACH resource indicated in RMSI after detecting the RMSI, and the base station sends control information of RAR and/or data information of RAR to the terminal device after receiving the random access request. The frequency domain position of the control resource set of the RAR is the same as the frequency domain position of the control resource set of the RMSI or indicated in the RMSI, and the terminal device detects the control information of the RAR in the resource corresponding to the control resource set of the RMSI or the resource indicated by the RMSI, so as to obtain the scheduling information of the data information of the RAR, and finally obtain the data information of the RAR. Or, the terminal device may detect the data information of the RAR in the resource corresponding to the control resource set of the RMSI or the resource indicated by the RMSI.

Typically, a wideband carrier may include one or more narrowband carriers, and may also include one or more SS blocks, and may also include one or more RMSIs. The first carrier contains both SS block and RMSI corresponding to SS block, the second carrier contains only SS block but no RMSI corresponding to SS block, and the third carrier contains neither SS block nor RMSI corresponding to SS block. When a terminal device accesses a carrier, if the carrier contains a plurality of SS blocks, the terminal device needs to perform blind detection on the SS blocks until the detected SS blocks have corresponding RMSIs; if there is no RMSI in the carrier, i.e. the carrier is the second carrier, the terminal device needs to continue to blindly detect other carriers until the first type of carrier is detected. The SS block, the set of control resources for RMSI scheduling, and the physical downlink shared channel carrying the RMSI information may be defined within a downlink common bandwidth portion, which may be less than or equal to the minimum reception bandwidth of the terminal device. The lowest/highest/center frequency domain position of the common bandwidth part and the lowest/highest/center frequency domain position of the SS block have predefined offset values, for example, the lowest/highest/center frequency domain position of the predefined SS block is the same as the common bandwidth part, and for example, 4 offset values are predefined, and then 2 bits are used in the RMSI to indicate the frequency domain position of the common bandwidth part; the size of the 4 kinds of partial bandwidths is predefined and then 2 bits are used in the RMSI to indicate the size of the common bandwidth. When one broadband carrier comprises a plurality of RMSIs, if the PRACH configuration information indicated in each RMSI is the same or there is an intersection between the PRACH configuration information indicated in different RMSIs, a phenomenon that the plurality of RMSIs indicate the same PRACH resource may be caused, so that a base station may not determine which RMSI corresponds to a bandwidth portion, a bandwidth portion indicated in an RMSI, or a bandwidth portion indicating a control resource set of an RMSI to transmit a control resource set of an RAR and/or data information of an RAR on a bandwidth portion of the control resource set of an RMSI after receiving a random access request transmitted on the PRACH resource by a terminal device.

Therefore, an optional embodiment provides a method and an apparatus for sending a message, which can at least solve the following problems: when a plurality of RMSIs are included in one broadband carrier, the base station cannot determine which bandwidth part corresponding to the RMSI, the bandwidth part indicated in the RMSI or the bandwidth part of the control resource set indicating the RMSI sends the control resource set of the RAR and/or the data information of the RAR to the terminal device.

The technical solution of the present application will be described in detail below with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.

Fig. 3 is a signaling flowchart of a first method for sending a message according to an embodiment of the present application. The embodiment relates to a method for determining resources for sending RAR information and sending RAR control information and/or RAR data information to a terminal device on the determined resources after a base station receives a random access request sent by a terminal. As shown in fig. 3, the method comprises the steps of:

step 301, the terminal device sends a random access request to the base station on the PRACH resource, and the PRACH resource is indicated by the RMSI.

In this embodiment, in a process of accessing a carrier, a terminal receives an RMSI sent by a base station after blindly detecting a synchronization signal block SS block, where the RMSI indicates a PRACH resource, and the PRACH resource is an available resource configured by the base station to a terminal device and used for the terminal device to send a preamble sequence. The terminal equipment randomly selects an access preamble sequence and sends the preamble sequence to the base station according to the PRACH resource indicated in the RMSI.

Step 302, the base station determines a resource for sending information about the RAR according to a preset correspondence, where the correspondence includes a correspondence between any one of the plurality of RMSIs and the PRACH configuration information.

In this embodiment, one wideband carrier may include a plurality of RMSIs, and the base station locally stores a correspondence between any one of the plurality of RMSIs and PRACH configuration information, that is, for each RMSI, there is a corresponding correspondence between the RMSI and the PRACH configuration information. After receiving the random access request sent by the terminal equipment, the base station determines the resource for sending the RAR information according to the corresponding relation stored in the local area, so as to send the RAR control information and/or the RAR data information on the determined resource.

Optionally, the resource is a control resource set and/or a resource for sending the data information of the RAR, where the bandwidth part where the resource is located is a bandwidth part where the RMSI is located, a bandwidth part indicated in the RMSI, or a bandwidth part of the control resource set where the RMSI is indicated.

Specifically, fig. 4a is a schematic diagram of a bandwidth portion where resources are located, as shown in fig. 4a, control information of the RAR is sent in a control resource set corresponding to the RAR, and scheduling information of data information of the RAR, such as a modulation and demodulation policy, allocated resources, and the like, is indicated in the control information of the RAR. The frequency domain positions of the data information of the RARs indicated in different RAR control resource sets may be the same and may be different. The control resource set corresponding to the RAR may be sent in the bandwidth part where the RMSI is located or the bandwidth part indicated in the RMSI or the bandwidth part of the control resource set indicating the RMSI, and the data of the RAR may be sent in the bandwidth part where the RMSI is located or the bandwidth part indicated in the RMSI or the bandwidth part of the control resource set indicating the RMSI. The bandwidth part in which the RMSI is located refers to a bandwidth part for transmitting scheduling information of the RMSI and transmitting RMSI data.

Fig. 4b is another schematic diagram of a bandwidth portion where resources are located, and as shown in fig. 4b, the bandwidth portion indicated in the RMSI indicates, in the RMSI, a bandwidth portion where resources for sending RAR control information are located when the terminal device accesses one carrier, where the resources are a control resource set.

Fig. 4c is another schematic diagram of a bandwidth portion where resources are located, as shown in fig. 4c, the bandwidth portion indicating the control resource set of the RMSI means that when a terminal device accesses a carrier, the control resource set used for sending the RMSI may be indicated in a master information block, and the master information block is included in an SS block, so that the bandwidth portion is the portion where the SS block is located.

Optionally, the PRACH configuration information may include at least one of the following information: accessing a preamble sequence, a time domain position of the PRACH resource or a frequency domain position of the PRACH resource. Accordingly, the base station may determine the bandwidth portion where the resource for sending the RAR information is located by at least one of the following manners:

the first method comprises the following steps: when the PRACH configuration information includes an access preamble sequence, the base station determines, according to a correspondence between any one RMSI and the access preamble sequence, an RMSI corresponding to the access preamble sequence in the random access request, and determines a bandwidth portion where the RMSI is located, a bandwidth portion indicated in the RMSI, or a bandwidth portion of a control resource set indicating the RMSI as a bandwidth portion where a control resource set for transmitting RAR is located, where access preamble sequences corresponding to different RMSIs are different.

Specifically, if m access preamble sequences are generated on a carrier and the access preamble sequences with different indexes are orthogonal to each other, that is, the access preamble sequences with different indexes are different, the base station may group the m access preamble sequences, for example, divide the m access preamble sequences into n mutually orthogonal access preamble sequence groups; and associating the grouped access preamble sequence groups with the RMSI, wherein the access preamble sequences in each group are different, namely no intersection exists, wherein m and n are positive integers, and the value of n is greater than or equal to the number of the RMSIs contained in the carrier. After associating the grouped access preamble sequence groups with the RMSIs, for each RMSI on the broadband carrier, at least one preamble sequence group associated with the RMSI exists, and thus, each PRACH resource is indicated by only one RMSI. In this way, after determining the access preamble sequence in the random access request, the base station may determine the group to which the access preamble sequence belongs, so as to determine the RMSI associated with the access preamble sequence group, and use resources in a bandwidth portion in which the RMSI is located, a bandwidth portion indicated in the RMSI, or a bandwidth portion of a control resource set indicating the RMSI for transmitting RAR.

For example, fig. 5 is a schematic configuration diagram of PRACH configuration information in one embodiment. As shown in fig. 5, if 64 access preamble sequences are generated on one wideband carrier, and the 64 access preamble sequences are mutually orthogonal. Assuming that the wideband carrier includes 2 RMSIs, namely RMSI1 and RMSI2, this embodiment is described by taking the example of dividing 64 access preamble sequences into 2 groups, for example, according to the indexes of the access preamble sequences, the access preamble sequences with index numbers 1-40 are divided into a first group, and the access preamble sequences with index numbers 41-64 are divided into a second group. The first set of access preamble sequences is associated with RMSI1 and the second set of access preamble sequences is associated with RMSI 2. Thus, each PRACH configuration is indicated by only one RMSI, as shown in table 1:

TABLE 1

Access preamble sequence group	Associated RMSI
		1-40	RMSI1
41-64	RMSI2

If the index number of the access preamble sequence received by the base station is 28, the base station may determine that the access preamble sequence belongs to the first group, and the RMSI associated with the first group of access preamble sequence groups is RMSI1, so that the base station determines the bandwidth portion of RMSI1 or the bandwidth portion indicated in RMSI2 as the bandwidth portion of the resource for transmitting the RAR information.

It should be noted that, in the above example, the base station may also divide the access preamble sequences into 4 groups, 5 groups, and so on, and when the number of the grouped access preamble sequence groups is greater than the number of the RMSIs, multiple access preamble sequence groups may be associated with the same RMSI. The specific association method is the same as when the number of access preamble sequence groups is equal to the number of RMSIs, and the embodiments of the present application are not described herein again.

In addition, the base station may adopt a plurality of grouping ways in the process of dividing m access preamble sequences into n groups, including but not limited to: for example, the index numbers may be allocated consecutively, such as grouping access preamble sequences with index numbers 1-10, grouping access preamble sequences with index numbers 11-24, and so on. For example, the index numbers may be assigned discontinuously, such as grouping all the access preamble sequences with odd index numbers into one group, and grouping all the access preamble sequences with even index numbers into one group. In another example, the base station may also group all access preamble sequences according to a preset rule, or may also group all access preamble sequences randomly, and for a specific grouping manner, the embodiment of the present application is not limited herein.

Alternatively, as will be understood by those skilled in the art, in order to facilitate the base station to allocate an appropriate uplink resource to the Msg3 in the RAR, the access preamble sequence needs to be divided into group a, group B and a sequence for non-contention access, where the group a, group B and the sequence for non-contention access may be the n disjoint access preamble sequence groups, for example, group a includes 3 access preamble sequence groups, group B includes 4 access preamble sequence groups, and the sequence for non-contention access includes n-7 access preamble sequence groups.

And the second method comprises the following steps: when the PRACH configuration information comprises the time domain position of the PRACH resource, the base station determines the RMSI corresponding to the target time domain position of the PRACH resource for receiving the random access request according to the corresponding relation between any RMSI and the time domain position of the PRACH resource, and determines the bandwidth part where the RMSI is located, the bandwidth part indicated in the RMSI or the bandwidth part of a control resource set indicating the RMSI as the bandwidth part where the resource for sending the RAR information is located, wherein the time domain positions of the PRACH resources corresponding to different RMSIs are different.

Specifically, a base station generates a certain number of access preamble sequences on a broadband carrier, the access preamble sequences with different indexes are orthogonal, and a terminal selects one access preamble sequence in a random access process and then determines a time domain resource for sending a preamble. Under the condition of determining the index of the access preamble sequence, in order to distinguish the PRACH resources indicated in different RMSIs, the time domain positions of the RPACH resources corresponding to different RMSIs are different.

Optionally, in a specific implementation process, the time domain positions of the PRACH resources may be divided in a Time Division Multiplexing (TDM) manner, so that different RMSIs indicate different time domain positions of the PRACH resources. For example: there are three RMSIs on a wideband carrier, where the time domain location of the PRACH resource indicated in RMSI1 is on subframes 1, 2, and 3, the time domain location of the PRACH resource indicated in RMSI2 is on subframes 4,5, and 6, and the time domain location of the PRACH resource indicated in RMSI3 is on subframes 7,8,9, and 10, assuming that there are 10 subframes on one system frame, the PRACH resource may be on any one system frame.

Of course, the base station may also adopt other manners to divide the time domain location. For example, there are two RMSIs on a wideband carrier, the time domain location of the PRACH resource indicated in RMSI1 is on odd system frames, the time domain location of the PRACH resource indicated in RMSI2 is on even system frames, and so on. The embodiment of the present application is not limited herein with respect to the specific division manner of the time domain position.

After receiving the random access request sent by the terminal, the base station can determine the target time domain position of the PRACH resource sending the random access request, and can determine the RMSI corresponding to the target time domain position through the corresponding relation between the RMSI and the time domain position of the PRACH resource. In an example, the correspondence between any one of the RMSIs and the time domain location of the PRACH resource includes: the time domain locations of the PRACH resources indicated in RMSI1 are on subframes 1, 2, and 3, the time domain locations of the PRACH resources indicated in RMSI2 are on subframes 4,5, and 6, and the time domain locations of the PRACH resources indicated in RMSI3 are on subframes 7,8,9, and 10. In this example, the base station determines that the terminal sends the random access request through the subframe 4, and according to the correspondence, it may know that the RMSI corresponding to the subframe 4 is the RMSI2, and determine the bandwidth portion where the RMSI2 is located or the bandwidth portion indicated in the RMSI2 as the bandwidth portion where the resource that sends the RAR information is located.

And the third is that: when the PRACH configuration information includes the frequency domain position of the PRACH resource, the base station determines, according to a correspondence between any one RMSI and the frequency domain position of the PRACH resource in the PRACH configuration information, an RMSI corresponding to a target frequency domain position of the PRACH resource that receives the random access request, and determines a bandwidth portion where the RMSI is located, a bandwidth portion indicated in the RMSI, or a bandwidth portion of a control resource set indicating the RMSI as a bandwidth portion where a resource for transmitting the RAR information is located, where time domain positions of the PRACH resources corresponding to different RMSIs are different.

Specifically, the present embodiment is different from the second embodiment in that, in the second embodiment, in the case of determining the access preamble sequence index, the time domain resources of the RPACH resources corresponding to different RMSIs are guaranteed to be different, whereas in the present embodiment, in the case of determining the access preamble sequence index, the frequency domain positions of the RPACH resources corresponding to different RMSIs are guaranteed to be different.

Optionally, in a specific implementation process, the frequency domain positions of the PRACH resources may be divided, so that the frequency domain positions of different PRACH resources are indicated in different RMSIs. For example: if there are three RMSIs on a wideband carrier, the frequency domain start positions of the PRACH resources indicated in RMSI1 are the 0 th RB and the 6 th RB, the frequency domain start position of the PRACH resources indicated in RMSI2 is the 10 th RB, the frequency domain start positions of the PRACH resources indicated in RMSI3 are the 18 th RB and the 30 th RB, and so on. Of course, the base station may also use other manners for dividing the frequency domain location, as long as the frequency domain location of the PRACH resource can be divided and associated with the RMSI. The embodiment of the present application is not limited herein with respect to the specific division manner of the frequency domain position.

It should be noted that, when the PRACH configuration information includes at least two of the access preamble sequence, the time domain position of the PRACH resource, or the frequency domain position of the PRACH resource, the base station determines the bandwidth portion where the resource for transmitting the RAR information is located according to the specific content included in the PRACH configuration information by correspondingly selecting the at least two manners. For example: if the PRACH configuration information includes the access preamble sequence and the time domain position of the PRACH resource, the base station determines a bandwidth portion where a resource for transmitting the RAR information is located through the first and/or second manner, and if the PRACH configuration information includes the time domain position of the PRACH resource and the frequency domain position of the PRACH resource, the base station determines the bandwidth portion where the resource for transmitting the RAR information is located through the second and/or third manner. The PRACH configuration information includes the access preamble sequence and the frequency domain position of the PRACH resource, or the PRACH configuration information includes the access preamble sequence, the time domain position of the PRACH resource, and the frequency domain position of the PRACH resource is similar to the above, and is not described here again.

Specifically, since the PRACH configuration information includes at least one of an access preamble sequence, a time domain position of a PRACH resource, or a frequency domain position of the PRACH resource, and for a plurality of RMSIs included in a carrier, each RMSI corresponds to the PRACH configuration information, in order to distinguish PRACH resources indicated in different RMSIs, the PRACH configuration information indicated in different RMSIs is generally made to satisfy at least one of the following conditions: different access preamble sequences, different time domain positions of the PRACH resources, or different frequency domain positions of the PRACH resources.

For example: if the PRACH configuration information only includes the access preamble sequence, the access preamble sequences corresponding to different RMSIs are mutually orthogonal, that is, there is no repetition between the access preamble sequences corresponding to different RMSIs.

For another example, if the PRACH configuration information includes access preamble sequences and time domain positions of PRACH resources, the access preamble sequences corresponding to different RMSIs are mutually orthogonal, or the time domain positions of the PRACH resources corresponding to different RMSIs are mutually orthogonal, or the access preamble sequences corresponding to different RMSIs are mutually orthogonal and the time domain positions of the PRACH resources corresponding to different RMSIs are also mutually orthogonal.

In other examples, the PRACH configuration information only includes a time domain position of the PRACH resource or a frequency domain position of the PRACH resource, or the PRACH configuration information includes an access preamble sequence and a frequency domain position of the PRACH resource, or the PRACH configuration information includes the access preamble sequence, the time domain position of the PRACH resource, and the frequency domain position of the PRACH resource. Similar to the above example, at least one of the PRACH configuration information is mutually orthogonal or, alternatively, mutually different. And will not be described in detail herein.

Step 303, sending the control information of the RAR and/or the data information of the RAR to the terminal device on the resource.

In this embodiment, after determining the bandwidth portion of the RMSI, the bandwidth portion indicated in the RMSI, or the bandwidth portion of the control resource set indicating the RMSI, the base station sends the control resource set of the RAR to the terminal device on the bandwidth portion, and sends the data of the RAR indicated in the control resource set to the terminal device, and after receiving the control resource set, the terminal device may determine the bandwidth portion where the data of the RAR is located according to the received scheduling information in the control resource set, and receive the data of the RAR on the determined bandwidth portion.

In addition, the data of the corresponding RAR in the control resource set of different RARs may be the same.

In the method for sending the message provided in the embodiment of the present application, the base station determines, by receiving a random access request sent by the terminal device on PRACH resources, and according to a preset correspondence, a resource for sending information on a random access response RAR, and sends, to the terminal device, control information of the RAR and/or data information of the RAR on the determined resource, where the PRACH resource is indicated by an RMSI, and the preset correspondence includes a correspondence between any one RMSI of a plurality of RMSIs and PRACH configuration information. The base station can determine the RMSI indicating the PRACH resource according to the corresponding relation between any one of the preset RMSIs and the PRACH configuration information, so that the resource sending the information about the RAR can be obtained, and the control information of the RAR and/or the data information of the RAR are sent to the terminal equipment on the resource, thereby improving the communication performance of the system.

In one embodiment, if the PRACH configuration information includes time domain positions of PRACH resources, a format of an access preamble sequence corresponds to at least one correspondence, where the correspondence includes a correspondence between any one of the RMSIs and the time domain positions of the PRACH resources, and the time domain positions of the PRACH resources corresponding to different RMSIs are different.

Specifically, the cyclic prefix lengths and sequence lengths of different preamble sequences correspond to different preamble sequence formats. After selecting the access preamble sequence, the terminal needs to select the PRACH resource for transmitting the access preamble sequence, and for the case that one carrier includes multiple RMSIs, if the access preamble sequences configured in different RMSIs are the same, when dividing the time domain position of the PRACH resource for transmitting the access preamble sequence, the division may be performed according to the format of the access preamble sequence. After the time domain position of the PRACH resource is divided, the divided time domain position group of the PRACH resource corresponds to the RMSI, thus, the format of the access leader sequence corresponds to at least one corresponding relation. In addition, the different format packets may be the same or different. And the PRACH resources used for a packet are the same for each format.

For example, if there are four formats of the access preamble sequence, these formats are format0, format1, format2 and format 3. Assume that there are two RMSIs, RMSI1 and RMSI2, on a wideband carrier. When the time domain positions of the PRACH resources are divided, for format0, the time domain positions of the PRACH resources are divided into two groups, for example, the time domain position of the PRACH resource indicated in RMSI1 is on an odd-numbered system frame, and the time domain position of the PRACH resource indicated in RMSI2 is on an even-numbered system frame. For format1, the time domain locations of the PRACH resources are divided into two groups, e.g., the time domain location of the PRACH resources indicated in RMSI1 is on subframes 0-5, and the time domain location of the PRACH resources indicated in RMSI2 is on subframes 6-9. For format2, the time domain locations of the PRACH resources are divided into two groups, e.g., the time domain location of the PRACH resource indicated in RMSI1 is on subframes 0-2, and the time domain location of the PRACH resource indicated in RMSI2 is on subframes 3-9. For format3, the time domain locations of the PRACH resources are divided into two groups, e.g., the time domain location of the PRACH resource indicated in RMSI1 is on odd system frames, the time domain location of the PRACH resource indicated in RMSI2 is on even system frames, etc. In addition, the formats 0, 1, 2, and 3 may all use the same grouping method, or all use different grouping methods, and the embodiments of the present application are not limited herein with respect to specific grouping methods.

In the embodiment of the present application, when the time domain positions of the PRACH resources are grouped according to the format of the access preamble sequence, the PRACH resources used for grouping in each format are the same.

Optionally, the PRACH configuration information includes a frequency domain position of the PRACH resource, a format of an access preamble sequence corresponds to at least one correspondence, the correspondence includes a correspondence between any one RMSI of the plurality of RMSIs and the frequency domain position of the PRACH resource, and the frequency domain positions of the PRACH resource corresponding to different RMSIs are different.

Specifically, after selecting the access preamble sequence, the terminal needs to select PRACH resources for transmitting the access preamble sequence, and for a case where one carrier includes multiple RMSIs, if access preamble sequences configured in different RMSIs are the same, when dividing the frequency domain position of the PRACH resource for transmitting the access preamble sequence, the division may be performed according to the format of the access preamble sequence. The format of an access preamble sequence corresponds to a grouping mode, that is, each format has an independent grouping mode, after the frequency domain position of the PRACH resource is divided, the divided frequency domain position group of the PRACH resource corresponds to the RMSI, so that the format of an access preamble sequence corresponds to at least one corresponding relationship, in addition, the groupings of different formats may be the same or different, and the PRACH resources used for grouping are the same for each format.

For example, if there are four formats of the access preamble sequence, these formats are format0, format1, format2 and format 3. Assume that there are two RMSIs, RMSI1 and RMSI2, on a wideband carrier. When the frequency domain positions of the PRACH resources are divided, for format0, the frequency domain positions of the PRACH resources are divided into two groups, for example, the frequency domain start position of the PRACH resource indicated in RMSI1 is the 0 th RB, and the start frequency domain position of the PRACH resource indicated in RMSI2 is the 8 th RB. For format1, the frequency domain positions of the PRACH resources are divided into two groups, for example, the frequency domain start position of the PRACH resource indicated in RMSI1 is the 0 th RB, and the frequency domain start position of the PRACH resource indicated in RMSI2 is the 10 th RB. For format2, the frequency domain positions of the PRACH resources are divided into two groups, for example, the frequency domain start position of the PRACH resource indicated in RMSI1 is the 0 th RB, the frequency domain start position of the PRACH resource indicated in RMSI2 is the 20 th RB, and so on, for format3, the frequency domain positions of the PRACH resources are divided into two groups, for example, the frequency domain start position of the PRACH resource indicated in RMSI1 is the 0 th RB, and the frequency domain position of the PRACH resource indicated in RMSI2 is the 8 th RB. In addition, the formats 0, 1, 2, and 3 may all use the same grouping method, or all use different grouping methods, and the embodiments of the present application are not limited herein with respect to specific grouping methods.

In the embodiment of the present application, when the frequency domain positions of the PRACH resources are grouped according to the format of the access preamble sequence, the PRACH resources used for grouping in each format are the same.

Optionally, the base station may further send at least one RMSI to the terminal device, where the RMSI is used to indicate PRACH resources, and configuration information of a PRACH indicated in different RMSIs is different, where the configuration information of the PRACH includes at least one of the following information: accessing a preamble sequence, a time domain position of the PRACH resource or a frequency domain position of the PRACH resource.

Specifically, when the base station allocates the configuration information of the PRACH to the terminal, the configuration information of the PRACH may be grouped, and the grouped configuration information of the PRACH is orthogonal to each other, and the base station may indicate the configuration information of different PRACH through different RMSIs. The configuration information of the PRACH includes the time domain position of the PRACH resource as an example: three RMSIs are arranged on one broadband carrier, wherein the time domain position of the PRACH resource indicated in RMSI1 is on subframes 1, 2 and 3, the time domain position of the PRACH resource indicated in RMSI2 is on subframes 4,5 and 6, and the time domain position of the PRACH resource indicated in RMSI3 is on subframes 7,8,9 and 10, so that even if a plurality of RMSIs are included in one broadband carrier, after the terminal sends a random access request to the base station through the configuration information of the PRACH indicated in one of the RMSIs, the base station can determine the corresponding RMSI according to the configuration information of the PRACH because the configuration information of the PRACH indicated in each RMSI is different, so that RAR is returned to the terminal on the bandwidth part where the RMSI is located, the bandwidth part indicated in the RMSI, or the bandwidth part of the control resource set indicating the RMSI, if the time domain position of the PRACH resource for which the base station receives the random access request is subframe 7, the base station can determine the corresponding RMSI to be RMSI3, and may return RAR to the terminal over the bandwidth part in which RMSI3 resides or indicated in the RMSI.

In this embodiment of the present application, since the base station may indicate different configuration information of the PRACH through different RMSIs, even if one wideband carrier includes multiple RMSIs, after the terminal sends a random access request to the base station through the configuration information of the PRACH indicated in one of the RMSIs, the base station determines the corresponding RMSI, and thus returns an RAR to the terminal on a bandwidth portion where the RMSI is located, a bandwidth portion indicated in the RMSI, or a bandwidth portion of a control resource set indicating the RMSI.

Optionally, the terminal device assumes that PRACH configuration information in different RMSIs are mutually orthogonal, that is, non-repeating, and different.

Optionally, the base station may further receive a random access request sent by the terminal on the PRACH resource, where the random access request includes an identifier of the RMSI, and the base station determines, according to the identifier, a resource for sending the RAR information, where the resource is a time-frequency resource corresponding to the RMSI.

Specifically, when a plurality of RMSIs are included in one wideband carrier, the base station may allocate an identifier to each RMSI, where the identifier is used to distinguish different RMSIs, and may be, for example, an ID number, and the like, where the identifiers corresponding to each RMSI are different. The base station may indicate the identity of the RMSI in the RMSI. In the process of random access, when a terminal sends a random access request by selecting a PRACH resource, the terminal can simultaneously send an RMSI identifier to a base station, wherein the RMSI is used for indicating the PRACH resource selected by the terminal. The base station can obtain the RMSI used for indicating the PRACH resource through the received RMSI identifier, and sends RAR to the terminal on the bandwidth part where the RMSI is located or the bandwidth part indicated in the RMSI. For example: if one broadband carrier comprises two RMSIs, the base station respectively adds identifiers, such as RMSI1 and RMSI2, to each RMSI, and indicates the identifier of the RMSI in the RMSI, when the terminal sends a random access request to the base station, if the PRACH resource indicated by RMSI1 is selected, the terminal can also send the identifier of RMSI1 to the base station when sending the random access request, and after receiving the identifier of RMSI1, the base station can know that the RMSI used for indicating the PRACH resource is RMSI1, and send RAR to the terminal on the bandwidth part where the RMSI is located, the bandwidth part indicated in the RMSI, or the bandwidth part of a control resource set indicating the RMSI. In the embodiment of the application, when the terminal sends the random access request to the base station, the identifier of the RMSI for indicating the PRACH resource selected by the terminal needs to be sent to the base station, and the base station can determine the corresponding RMSI according to the identifier, so that the RAR is sent to the terminal on the bandwidth part where the RMSI is located or the bandwidth part indicated in the RMSI.

Fig. 6 is a schematic structural diagram of a first embodiment of an apparatus for sending a message according to the present application, where the apparatus may be located in a base station, and referring to fig. 6, the apparatus includes: a receiving module 601, a determining module 602 and a sending module 603.

The receiving module 601 is configured to receive a random access request sent by a terminal device on a physical random access channel PRACH resource, where the PRACH resource is indicated by a remaining minimum system message RMSI;

the determining module 602 is configured to determine, according to a preset correspondence relationship, a resource used for sending information about a random access response RAR, where the correspondence relationship includes a correspondence relationship between any one of a plurality of RMSIs and PRACH configuration information;

the sending module 603 is configured to send control information of the RAR and/or data information of the RAR to the terminal device on the resource.

the determining module 602 is specifically configured to:

The apparatus may be configured to execute the method provided by the corresponding method embodiment, and the specific implementation manner and the technical effect are similar and will not be described herein again.

It should be noted that the division of the modules of the above communication device is only a logical division, and the actual implementation may be wholly or partially integrated into one physical entity, or may be physically separated. And these modules can be realized in the form of software called by processing element; or may be implemented entirely in hardware; and part of the modules can be realized in a mode of calling by the processing element through software, and part of the modules can be realized in a mode of hardware. For example, the first sending module may be a processing element separately set up, or may be implemented by being integrated in a certain chip of the base station, or may be stored in a memory of the base station in the form of a program, and a certain processing element of the base station calls and executes the function of the first sending module. Other modules are implemented similarly. In addition, all or part of the modules can be integrated together or can be independently realized. The processing element described herein may be an integrated circuit having signal processing capabilities. In implementation, each step of the above method or each module above may be implemented by an integrated logic circuit of hardware in a processor element or an instruction in the form of software. Further, the above first transmission module is a module for controlling transmission, and information can be transmitted to a terminal through a transmission means of a base station, such as an antenna and a radio frequency device, and the second transmission module is similar thereto.

These above modules may be one or more integrated circuits configured to implement the above methods, such as: one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), among others. As another example, when one of the above modules is implemented in the form of a Processing element scheduler, the Processing element may be a general purpose processor, such as a Central Processing Unit (CPU) or other processor capable of invoking programs. As another example, these modules may be integrated together, implemented in the form of a system-on-a-chip (SOC).

Fig. 7 is a schematic structural diagram of a second apparatus for sending a message according to the present application, where the apparatus may be located in a terminal device, and referring to fig. 7, the apparatus includes: a transmitting module 701 and a receiving module 702.

The sending module 701 is configured to send a random access request to a base station on a physical random access channel PRACH resource, where the PRACH resource is indicated by a remaining minimum system message RMSI;

the receiving module 702 is configured to receive control information of a random access response RAR and/or data information of the RAR sent by the base station on the resource.

It should be noted that the division of the modules of the above communication device is only a logical division, and the actual implementation may be wholly or partially integrated into one physical entity, or may be physically separated. And these modules can be realized in the form of software called by processing element; or may be implemented entirely in hardware; and part of the modules can be realized in a mode of calling by the processing element through software, and part of the modules can be realized in a mode of hardware. For example, the first receiving module may be a separately established processing element, or may be implemented by being integrated in a chip of the terminal, or may be stored in a memory of the terminal in the form of a program, and the function of the first receiving module is called and executed by a processing element of the terminal. Other modules are implemented similarly. In addition, all or part of the modules can be integrated together or can be independently realized. The processing element described herein may be an integrated circuit having signal processing capabilities. In implementation, each step of the above method or each module above may be implemented by an integrated logic circuit of hardware in a processor element or an instruction in the form of software. In addition, the above receiving module is a module for controlling reception, and can receive information transmitted by the base station through a receiving device of the terminal, such as an antenna and a radio frequency device.

Fig. 8 is a schematic structural diagram of a base station according to an embodiment of the present application. Referring to fig. 8, the base station may include a receiver 40, a transmitter 41, a processor 42, and a memory 43. The memory 43 may comprise a high speed RAM memory, and may also include a non-volatile storage NVM, such as at least one disk memory, in which various programs may be stored in the memory 43 for performing various processing functions and implementing the method steps of the present embodiment. Alternatively, the receiver 40 and the transmitter 41 in this embodiment may be a radio frequency module or a baseband module on the base station.

In this embodiment, the receiver 40 is configured to receive a random access request sent by a terminal device on a physical random access channel PRACH resource, where the PRACH resource is indicated by a remaining minimum system message RMSI;

a processor 42, configured to determine, according to a preset correspondence relationship, a resource used for sending information about a random access response RAR, where the correspondence relationship includes a correspondence relationship between any one of multiple RMSIs and PRACH configuration information;

a transmitter 41, configured to transmit control information of the RAR and/or data information of the RAR to the terminal device on the resource.

the processor 42 is specifically configured to:

The base station may be configured to execute the method provided in the corresponding method embodiment, and the specific implementation manner and the technical effect are similar and will not be described herein again.

Fig. 9 is a schematic structural diagram of an embodiment of a terminal device according to the present application. Referring to fig. 9, the base station may include a receiver 50, a transmitter 51, a processor 52, and a memory 53. The memory 53 may comprise a high speed RAM memory, and may also include a non-volatile memory NVM, such as at least one disk memory, in which various programs may be stored in the memory 53 for performing various processing functions and implementing the method steps of the present embodiment. Optionally, the receiver 50 and the transmitter 51 in this embodiment may be a radio frequency module or a baseband module on the terminal device.

In this embodiment, the transmitter 51 is configured to send a random access request to a base station on a physical random access channel PRACH resource, where the PRACH resource is indicated by a remaining minimum system message RMSI;

a receiver 50, configured to receive control information of a random access response RAR and/or data information of the RAR sent by the base station on a resource.

The terminal device may be configured to execute the method provided in the corresponding method embodiment, and the specific implementation manner and the technical effect are similar and will not be described herein again.

The present application also provides a storage medium comprising: a readable storage medium and a computer program for implementing the method for sending a message provided by any of the foregoing embodiments.

The present application also provides a program product comprising a computer program (i.e. executing instructions), the computer program being stored in a readable storage medium. The computer program may be read from a readable storage medium by at least one processor of the transmitting device, and execution of the computer program by the at least one processor causes the transmitting device to implement the method of transmitting a message provided by the various embodiments described above.

Fig. 10 is a schematic structural diagram of a message transmission apparatus according to an embodiment of the present application. As shown in fig. 10, the message transmitting apparatus 1200 may be implemented by a bus 1201 as a general bus architecture. The bus 1201 may include any number of interconnecting buses and bridges depending on the specific application of the sending device 1200 of the message and the overall design constraints. The bus 1201 couples various circuits together including the processor 1202, the storage medium 1203, and the bus interface 1204. Alternatively, the message transmission apparatus 1200 connects a network adapter 1205 or the like via the bus 1201 using the bus interface 1204. The network adapter 1205 may be used to implement signal processing functions at the physical layer of the wireless communication network and to transmit and receive radio frequency signals through the antenna 1207. The user interface 1206 may connect user terminals, such as: a keyboard, a display, a mouse or a joystick, etc. The bus 1201 may also connect various other circuits such as timing sources, peripherals, voltage regulators, or power management circuits, which are well known in the art, and therefore, will not be described in detail.

Alternatively, the means 1200 for sending a message may be configured as a general purpose processing system, such as a chip, including one or more microprocessors providing processor functionality; and an external memory providing at least a portion of the storage medium 1203, all connected together with other support circuitry through an external bus architecture.

Alternatively, the means 1200 for sending messages may be implemented using an ASIC (application specific integrated circuit) having a processor 1202, a bus interface 1204, a user interface 1206; and at least a portion of the storage medium 1203 integrated within a single chip, or the means 1200 for sending a message may be implemented using one or more FPGAs (field programmable gate arrays), PLDs (programmable logic devices), controllers, state machines, gated logic, discrete hardware components, any other suitable circuitry, or any combination of circuitry capable of performing the various functions described throughout this application.

Among other things, the processor 1202 is responsible for managing the bus and general processing (including executing software stored on the storage medium 1203). The processor 1202 may be implemented using one or more general-purpose processors and/or special-purpose processors. Examples of processors include microprocessors, microcontrollers, DSP processors, and other circuits capable of executing software. Software should be construed broadly to mean instructions, data, or any combination thereof, whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise.

The storage medium 1203 is shown in fig. 10 as being separate from the processor 1202, however, it will be readily apparent to those skilled in the art that the storage medium 1203, or any portion thereof, may be located outside of the sending device 1200 of the message. The storage medium 1203 may include, for example, a transmission line, a carrier wave modulated with data, and/or a computer product separate from the wireless node, all of which may be accessed by the processor 1202 through the bus interface 1204. Alternatively, the storage medium 1203, or any portion thereof, may be integrated into the processor 1202, e.g., may be a cache and/or general purpose registers.

The processor 1202 can implement the above-described embodiments, which are not described herein.

Alternatively, all or part of the implementation may be in software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website site, computer, server, or data center to another website site, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the 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 (e.g., Solid State Disk (SSD)), among others.

Claims

1. A method for sending a message, comprising:

sending the control information of the RAR and/or the data information of the RAR to the terminal equipment on the resource;

the resource is a control resource set and/or a resource for sending the data information of the RAR, and the bandwidth part where the resource is located is the bandwidth part where the RMSI is located, the bandwidth part indicated in the RMSI, or the bandwidth part of the control resource set where the RMSI is indicated.

2. The method of claim 1, wherein the PRACH configuration information comprises at least one of the following information: accessing a preamble sequence, a time domain position of the PRACH resource or a frequency domain position of the PRACH resource.

3. The method of claim 2, wherein the PRACH configuration information indicated by different RMSIs satisfies at least one of the following conditions: different access preamble sequences, different time domain positions of the PRACH resources, or different frequency domain positions of the PRACH resources.

4. The method of any of claims 1-3, wherein the PRACH configuration information comprises a time domain location of a PRACH resource; a format of an access preamble sequence corresponds to at least one corresponding relation, the corresponding relation comprises a corresponding relation between any one RMSI in a plurality of RMSIs and the time domain position of the PRACH resource, and the time domain positions of the PRACH resource corresponding to different RMSIs are different.

5. The method of any of claims 1-3, wherein the PRACH configuration information comprises a frequency domain location of PRACH resources; a format of an access preamble sequence corresponds to at least one corresponding relation, the corresponding relation comprises a corresponding relation between any one RMSI in a plurality of RMSIs and the frequency domain position of the PRACH resource, and the frequency domain positions of the PRACH resource corresponding to different RMSIs are different.

6. The method of claim 1, wherein the PRACH configuration information comprises an access preamble sequence;

7. The method of claim 1, wherein the PRACH configuration information comprises a time domain location of a PRACH resource;

8. The method of claim 1, wherein the PRACH configuration information comprises a frequency domain location of PRACH resources;

9. A method for sending a message, comprising:

receiving control information of a Random Access Response (RAR) and/or data information of the RAR sent by the base station on resources, wherein the resources are determined by the base station according to a preset corresponding relationship and are used for sending the information of the Random Access Response (RAR), and the corresponding relationship comprises a corresponding relationship between any one RMSI in a plurality of RMSIs and PRACH configuration information;

10. The method of claim 9, wherein the PRACH configuration information comprises at least one of: accessing a preamble sequence, a time domain position of the PRACH resource or a frequency domain position of the PRACH resource.

11. The method of claim 10, wherein the PRACH configuration information indicated by different RMSIs meets at least one of the following conditions: different access preamble sequences, different time domain positions of the PRACH resources, or different frequency domain positions of the PRACH resources.

12. The method according to any of claims 9-11, wherein said PRACH configuration information comprises a time domain location of a PRACH resource; the format of any access preamble sequence corresponds to at least one corresponding relation, the corresponding relation comprises the corresponding relation between any one RMSI in the plurality of RMSIs and the time domain position of the PRACH resource, and the time domain positions of the PRACH resource corresponding to different RMSIs are different.

13. The method of any of claims 9-11, wherein the PRACH configuration information comprises a frequency domain location of a PRACH resource; the format of any access preamble sequence corresponds to at least one corresponding relation, the corresponding relation comprises a corresponding relation between any one RMSI in the plurality of RMSIs and the frequency domain position of the PRACH resource, and the frequency domain positions of the PRACH resource corresponding to different RMSIs are different.

14. An apparatus for transmitting a message, comprising:

a sending module, configured to send, to the terminal device on the resource, control information of the RAR and/or data information of the RAR;

15. The apparatus of claim 14, wherein the PRACH configuration information comprises at least one of: accessing a preamble sequence, a time domain position of the PRACH resource or a frequency domain position of the PRACH resource.

16. The apparatus of claim 15, wherein the PRACH configuration information indicated by different RMSIs meets at least one of the following conditions: different access preamble sequences, different time domain positions of the PRACH resources, or different frequency domain positions of the PRACH resources.

17. The apparatus of any of claims 14-16, wherein the PRACH configuration information comprises a time domain location of a PRACH resource; a format of an access preamble sequence corresponds to at least one corresponding relation, the corresponding relation comprises a corresponding relation between any one RMSI in a plurality of RMSIs and the time domain position of the PRACH resource, and the time domain positions of the PRACH resource corresponding to different RMSIs are different.

18. The apparatus of any of claims 14-16, wherein the PRACH configuration information comprises a frequency domain location of a PRACH resource; a format of an access preamble sequence corresponds to at least one corresponding relation, the corresponding relation comprises a corresponding relation between any one RMSI in a plurality of RMSIs and the frequency domain position of the PRACH resource, and the frequency domain positions of the PRACH resource corresponding to different RMSIs are different.

19. The apparatus of claim 14, wherein the PRACH configuration information comprises an access preamble sequence;

the determining module is specifically configured to:

20. The apparatus of claim 14, wherein the PRACH configuration information comprises a time domain location of a PRACH resource;

the determining module is specifically configured to:

21. The apparatus of claim 14, wherein the PRACH configuration information comprises a frequency domain location of a PRACH resource;

the determining module is specifically configured to:

22. An apparatus for transmitting a message, comprising:

a receiving module, configured to receive control information of a random access response RAR and/or data information of the RAR sent by the base station on the resource, where the resource is a resource that is determined by the base station according to a preset correspondence and used for sending information of the random access response RAR, and the correspondence includes a correspondence between any one of multiple RMSIs and PRACH configuration information;

23. The apparatus of claim 22, wherein the PRACH configuration information comprises at least one of: accessing a preamble sequence, a time domain position of the PRACH resource or a frequency domain position of the PRACH resource.

24. The apparatus of claim 23, wherein the PRACH configuration information indicated by different RMSIs meets at least one of the following conditions: different access preamble sequences, different time domain positions of the PRACH resources, or different frequency domain positions of the PRACH resources.

25. The apparatus of any of claims 22-24, wherein the PRACH configuration information comprises a time domain location of a PRACH resource; the format of any access preamble sequence corresponds to at least one corresponding relation, the corresponding relation comprises the corresponding relation between any one RMSI in the plurality of RMSIs and the time domain position of the PRACH resource, and the time domain positions of the PRACH resource corresponding to different RMSIs are different.

26. The apparatus of any of claims 22-24, wherein the PRACH configuration information comprises a frequency domain location of a PRACH resource; the format of any access preamble sequence corresponds to at least one corresponding relation, the corresponding relation comprises a corresponding relation between any one RMSI in the plurality of RMSIs and the frequency domain position of the PRACH resource, and the time domain positions of the PRACH resource corresponding to different RMSIs are different.