WO2024041377A1

WO2024041377A1 - Beam indication method and apparatus, and readable storage medium

Info

Publication number: WO2024041377A1
Application number: PCT/CN2023/111792
Authority: WO
Inventors: 沈姝伶; 邢艳萍; 费永强
Original assignee: 大唐移动通信设备有限公司
Priority date: 2022-08-26
Filing date: 2023-08-08
Publication date: 2024-02-29
Also published as: CN117692036A

Abstract

The present disclosure provides a beam indication method and apparatus, and a readable storage medium. The method comprises: receiving target information sent by a network side device, wherein the target information comprises beam indication information carried by a first reserved bit in a random access response (RAR), or the target information comprises beam indication information carried by a newly added field in the RAR; determining an optimal beam according to the target information; and according to the optimal beam, sending a message 3 physical uplink shared channel (Msg3 PUSCH), and/or sending a hybrid automatic repeat request acknowledgement (HARQ-ACK) feedback for a message 4 physical downlink shared channel (Msg4 PDSCH). The transmission performance of a Msg3 PUSCH and/or a HARQ-ACK feedback for a Msg4 PDSCH message when multiple beams are used for transmitting a PRACH is improved.

Description

Beam pointing method, device and readable storage medium

This disclosure claims priority to the Chinese patent application filed with the China Patent Office on August 26, 2022, with application number 202211030934.0 and the application title "Beam Instruction Method, Device and Readable Storage Medium", the entire content of which is incorporated by reference. This disclosure is ongoing.

Technical field

The present disclosure relates to the field of communication technology, and in particular, to a beam indicating method, device and readable storage medium.

Background technique

Currently, the terminal will only send a physical random access channel (English: Physical Random Access Channel, abbreviation: PRACH) during a random access attempt. If it receives a random access response (English: Random Access Response, abbreviation: RAR) fails before the next PRACH is sent. Throughout the random process, the terminal always uses the beam (i.e. beam) corresponding to the synchronization signal block (English: Synchronization Signal Block, abbreviation: SSB) that meets the access conditions to send PRACH and send a message (English: Message, abbreviation: Msg) )3 Physical Uplink Shared Channel (English: Physical Uplink Shared Channel, abbreviation: PUSCH) and automatic request retransmission (English: Hybrid Automatic) for Msg4 Physical Downlink Shared Channel (English: Physical Downink Shared Channel, abbreviation: PDSCH) Repeat reQuest, abbreviation: HARQ) confirmation (English: Acknowledgment, abbreviation: ACK) is HARQ-ACK feedback. In the Rel-18 coverage enhancement technology research, multi-physical random access channel multi PRACH transmission in the random access process is supported to improve the transmission performance of PRACH. Among them, multi PRACH may be sent through different beams.

However, in the existing technology, there is only one beam for uplink transmission in the Random Access Channel (English: Random Access Channel, RACH) stage, and the terminal uses this beam to send information during the RACH process. When Rel-18 supports using different beams to transmit multi PRACH, the terminal transmits multiple candidate beams. However, the base station will not notify the terminal which candidate beam to use for subsequent Msg3 PUSCH and/or HARQ-ACK automatic request for Msg4 PDSCH messages. Heavy Send feedback.

Therefore, in the existing technology, when Rel-18 supports the use of different beams to transmit multi PRACH, and the terminal transmits multiple candidate beams, it may select the beam corresponding to the SSB that meets the access conditions or randomly select a beam for subsequent uplink transmission. , but due to the variability of uplink and downlink channels, this beam is not necessarily the optimal beam for uplink transmission. Therefore, the terminal may not enable Msg3 PUSCH and/or HARQ-ACK automatic request retransmission feedback for Msg4 PDSCH messages for optimal performance transmission.

Contents of the invention

The present disclosure provides a beam indication method, device and readable storage medium, which solves the problem in the existing technology that when Rel-18 supports the use of different beams to transmit multi PRACH and the terminal transmits multiple candidate beams, Msg3 PUSCH and / Or the technical issue of HARQ-ACK automatic request for retransmission feedback of Msg4 PDSCH message for optimal performance transmission.

In a first aspect, the present disclosure provides a beam indication method, which is applied to a terminal. The method includes:

Receive target information sent by the network side device; wherein the target information includes beam indication information carried by the first reserved bit in the random response access RAR; or,

The target information includes beam indication information carried in a new field in the random response access RAR;

Determine the optimal beam based on the target information;

Send message 3 physical uplink shared channel Msg3 PUSCH according to the optimal beam, and/or send automatic request retransmission confirmation HARQ-ACK feedback for message 4 physical downlink shared channel Msg4 PDSCH.

Optionally, when the target information is the beam indication information carried by the first reserved bit in the RAR, determining the optimal beam according to the target information includes:

Determine the beam index of the optimal beam according to the corresponding relationship between the state value of the first reserved bit and the candidate beam index;

Determine the optimal beam according to the beam index of the optimal beam;

Wherein, the first reserved bit is a reserved bit in the RAR and/or a reserved bit included in the RAR uplink grant UL grant.

Optionally, when the target information is beam indication information carried in a new field in the RAR, Determining the optimal beam according to the target information includes:

According to the beam indication information carried in the new field, determine the beam index of the optimal beam through the Bitmap bitmap; or,

According to the beam indication information carried in the new field, determine the beam index of the optimal beam through indexing;

The optimal beam is determined according to the beam index of the optimal beam.

In the embodiment of the present disclosure, the optimal beam is determined based on the beam indication information carried by the first reserved bit in the RAR or the beam indication information carried by the new field in the RAR; specifically, the optimal beam can be determined based on the status value of the first reserved bit. The corresponding relationship with the candidate beam index determines the beam index of the optimal beam, or the beam indication information carried by the new field determines the beam index of the optimal beam through a Bitmap bitmap or an index. The beam index corresponds to one beam, and which beam is the optimal beam can be confirmed by determining the beam index of the optimal beam.

Optionally, the new field includes N bits, N is an integer greater than 1, and the N is predefined through a protocol, or the N is configured through high-layer signaling;

Wherein, the N is a fixed value; or,

The N is a non-fixed value.

Optionally, the beam index of the optimal beam is determined through a Bitmap bitmap based on the beam indication information carried in the new field, including:

If the status value of any bit among the N bits included in the new field is the first preset value, then the beam index corresponding to the bit is the beam index of the optimal beam;

Wherein, the number of bits whose status value is the first preset value is greater than 1 or equal to 1, and the beam index corresponding to one bit corresponds to an optimal beam index.

Optionally, when the number of bits whose status value is the first preset value is greater than 1, the message 3 physical uplink shared channel Msg3 PUSCH is sent according to the optimal beam, and/or the message 4 physical downlink shared channel is sent Channel Msg4 PDSCH automatic request retransmission confirmation HARQ-ACK feedback, including:

Select a target optimal beam from a plurality of the optimal beams, where the target optimal beam is any optimal beam among a plurality of the optimal beams;

Send message 3 physical uplink shared channel Msg3 PUSCH according to the target optimal beam, and/or send automatic request retransmission confirmation for message 4 physical downlink shared channel Msg4 PDSCH HARQ-ACK feedback.

In the embodiment of the present disclosure, the beam index of the optimal beam determined through the Bitmap bitmap can be one or more, and then any beam is selected from the beam corresponding to the determined beam index as the physical uplink share for sending message 3 Channel Msg3 PUSCH, and/or send the optimal beam for the automatic request for retransmission confirmation HARQ-ACK feedback for the Message 4 physical downlink shared channel Msg4 PDSCH.

Optionally, the beam index of the optimal beam is determined by indexing based on the beam indication information carried in the new field, including:

According to the corresponding relationship between the state value of the new field and the candidate beam index, the beam index of the optimal beam is determined; wherein, the N bits included in the new field constitute 2 ^N state values, and one state value corresponds to one candidate Beam index.

In the embodiment of the present disclosure, the beam index of the optimal beam is determined by indexing, which can be based on the 2 ^N status values composed of N bits included in the new field, and the corresponding relationship between the status value of the new field and the candidate beam index. Determine which bit corresponds to the state value as the state value corresponding to the optimal beam, and then determine the beam index of the optimal beam, and then confirm that the optimal beam corresponding to the beam index is used to send message 3 physical uplink shared channel Msg3 PUSCH, and/or send Automatic request for retransmission of message 4 physical downlink shared channel Msg4 PDSCH confirms the optimal beam of HARQ-ACK feedback.

Optionally, the beam index of the optimal beam is a synchronization signal block SSB index used for physical random access channel PRACH transmission, wherein the optimal beam is a random access channel transmission opportunity associated with the SSB index. The beam used to send the corresponding PRACH on the RO; or,

The beam index of the optimal beam is the RO index used for PRACH transmission; wherein the optimal beam is the beam used to transmit the corresponding PRACH on the target RO corresponding to the RO index.

In the embodiment of the present disclosure, the beam index may be an SSB index used for multi PRACH transmission, or the beam index may be an RO index for multi PRACH transmission, and the terminal may use the optimal beam for subsequent message 3 physical uplink shared channel Msg3 PUSCH, and/or send automatic request retransmission confirmation HARQ-ACK feedback for the message 4 physical downlink shared channel Msg4 PDSCH, thereby improving the performance of terminal transmission.

In a second aspect, the present disclosure provides a beam indication method, which is applied to network side equipment. The method includes:

Determine target information; wherein the target information includes the first guarantee in the random response access RAR The beam indication information carried by the reserved bit; or, the target information includes the beam indication information carried by the new field in the random response access RAR; the beam indication information is used to indicate the optimal beam of the terminal;

Send target information to the terminal.

Optionally, when the target information is the beam indication information carried by the first reserved bit in the RAR, the determining the target information includes:

According to the corresponding relationship between the state value of the first reserved bit and the candidate beam index, the beam indication information is generated; wherein the first reserved bit is the reserved bit in the RAR and/or the reserved bit included in the RAR uplink grant UL grant. leave bits;

The beam indication information is carried by the first reserved bit, and the message carrying the beam indication information by the first reserved bit is used as the target information.

Optionally, when the target information is the beam indication information carried by a new field in the RAR, the determining the target information includes:

Indicate the beam index of the optimal beam in the form of Bitmap bitmap; or indicate the beam index of the optimal beam in the form of index;

Generate the beam indication information according to the beam index of the optimal beam;

The beam indication information is carried through the new field, and the message carrying the beam indication information in the new field is used as the target information.

In the embodiment of the present disclosure, the beam indication information is determined based on the first reserved bit in the RAR or a new field in the RAR to indicate the optimal beam adopted by the terminal; specifically, the state value of the first reserved bit and the candidate The corresponding relationship of the beam index generates beam indication information, or indicates the beam index of the optimal beam through Bitmap bitmap or index method. Since one beam index corresponds to one beam, beam indication information is generated and carried through the new field. The beam indication information is sent to the terminal, and the target information carrying the beam indication information is sent to the terminal, notifying the terminal to use the optimal beam for the subsequent Message 3 physical uplink shared channel Msg3 PUSCH, and/or sending the message 4 physical downlink shared channel Msg4 PDSCH's automatic request for retransmission confirms HARQ-ACK feedback, thereby improving the performance of terminal transmission.

Wherein, the N is a fixed value; or,

The N is a non-fixed value.

Optionally, the beam index indicating the optimal beam through a Bitmap bitmap includes:

When the status value of any bit among the N bits included in the new field indicates that the status value is the first preset value, the beam index corresponding to the bit is the beam index of the optimal beam;

Optionally, when the number of bits whose status value is the first preset value is greater than 1, the beam indication information is used to instruct the terminal to select a target optimal beam from a plurality of the optimal beams; wherein, the The target optimal beam is any optimal beam among multiple optimal beams.

In the embodiment of the present disclosure, through the status value of any bit in the N bits included in the new field, the beam index of the indicated optimal beam can be one or more, and then the terminal is instructed to select any beam from the optimal beam as the The optimal beam used to send the message 3 physical uplink shared channel Msg3 PUSCH, and/or send the automatic request for retransmission confirmation HARQ-ACK feedback for the message 4 physical downlink shared channel Msg4 PDSCH.

Optionally, the beam index indicating the optimal beam through indexing includes:

Through the corresponding relationship between the state value of the new field and the candidate beam index, the beam index of the optimal beam is indicated; wherein, the N bits included in the new field constitute 2 ^N state values, and one state value corresponds to one candidate. Beam index.

In the embodiment of the present disclosure, the beam index of the optimal beam is indicated by an index, which can be based on the 2 ^N status values composed of N bits included in the new field, and the corresponding relationship between the status value of the new field and the candidate beam index is used. Indicate which bit corresponds to the state value corresponding to the optimal beam, and then determine the beam index of the optimal beam, and then notify the terminal to use the optimal beam corresponding to the beam index to send message 3 physical uplink shared channel Msg3 PUSCH, and/or Send the optimal beam for the automatic request for retransmission confirmation HARQ-ACK feedback for the Message 4 physical downlink shared channel Msg4 PDSCH.

In this embodiment of the present disclosure, the beam index may be an SSB index used for multi PRACH transmission, or the beam index may be an RO index used for multi PRACH transmission. When the network side device receives When the terminal uses multi PRACH sent by different beams, the base station can determine the optimal beam and notify the terminal of the optimal beam, so that the terminal can use the optimal beam for subsequent messages 3 physical uplink shared channel Msg3 PUSCH, and/ Or send automatic request retransmission confirmation HARQ-ACK feedback for the message 4 physical downlink shared channel Msg4 PDSCH, thereby improving the performance of subsequent terminal transmissions.

In a third aspect, the present disclosure provides a beam pointing device, which is used in a terminal. The device includes a memory, a transceiver, and a processor:

Memory, used to store computer programs; transceiver, used to send and receive data under the control of the processor; processor, used to read the computer program in the memory and perform the following operations:

Determine the optimal beam based on the target information;

In a fourth aspect, the present disclosure provides a beam indicating device, which is used in network side equipment. The device includes: a memory, a transceiver, and a processor:

Determine target information; wherein the target information includes beam indication information carried by the first reserved bit in the random response access RAR; or, the target information includes beam indication information carried by a new field in the random response access RAR ;The beam indication information is used to indicate the optimal beam of the terminal;

Send target information to the terminal.

In a fifth aspect, the present disclosure provides a beam indicating device, which device is used in a terminal. The device includes:

A receiving unit configured to receive target information sent by the network side device; wherein the target information includes beam indication information carried by the first reserved bit in the random response access RAR; or the target information includes the random response access RAR The beam indication information carried by the new field in;

A first processing unit configured to determine the optimal beam according to the target information;

The second processing unit is configured to send the message 3 physical uplink shared channel Msg3 PUSCH according to the optimal beam, and/or send the automatic request retransmission confirmation HARQ-ACK feedback for the message 4 physical downlink shared channel Msg4 PDSCH.

In a sixth aspect, the present disclosure provides a beam indicating device, which device is used in network side equipment. The device includes:

A processing unit configured to determine target information; wherein the target information includes beam indication information carried by the first reserved bit in the random response access RAR; or the target information includes a new field in the random response access RAR carried beam indication information; the beam indication information is used to indicate the optimal beam of the terminal;

The sending unit is used to send target information to the terminal.

In a seventh aspect, the present disclosure provides a processor-readable storage medium that stores a computer program, and the computer program is used to cause the processor to execute either the first aspect or the second aspect. method described in the item.

The present disclosure provides a beam indication method, device and readable storage medium, which determines the optimal beam based on the beam indication information carried by the first reserved bit in the RAR or the beam indication information carried by the new field in the RAR. The optimal beam sends the message 3 physical uplink shared channel Msg3 PUSCH, and/or sends the automatic request retransmission confirmation HARQ-ACK feedback for the message 4 physical downlink shared channel Msg4 PDSCH. Therefore, when Rel-18 supports using different beams When transmitting multi PRACH and the terminal transmits multiple candidate beams, the network side device can notify the terminal of the optimal beam so that the terminal can use the optimal beam for subsequent messages 3 Physical Uplink Shared Channel Msg3 PUSCH, and/or send targeted Message 4 Physical Downlink Shared Channel Msg4 PDSCH's automatic request for retransmission confirms HARQ-ACK feedback, thereby improving the performance of subsequent terminal transmissions.

It should be understood that the content described in the above summary section is not intended to define key or important features of the embodiments of the disclosure, nor is it used to limit the scope of the disclosure. Other features of the present disclosure will become apparent from the description below.

Description of drawings

In order to more clearly illustrate the technical solutions in the present disclosure or the prior art, a brief introduction will be given below to the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the following description The drawings in are some embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting any creative effort.

Figure 1 is a schematic structural diagram of a MAC RAR provided by an embodiment of the present disclosure;

Figure 2 is an interactive schematic diagram of the beam indication method provided by an embodiment of the present disclosure;

Figure 3 is a schematic flowchart of a beam indication method provided by an embodiment of the present disclosure;

Figure 4 is a schematic flowchart of a beam indication method provided by another embodiment of the present disclosure;

Figure 5 is a schematic structural diagram of a beam indicating device provided by an embodiment of the present disclosure;

Figure 6 is a schematic structural diagram of a beam pointing device provided by another embodiment of the present disclosure;

Figure 7 is a schematic structural diagram of a beam pointing device provided by yet another embodiment of the present disclosure;

Figure 8 is a schematic structural diagram of a beam pointing device provided by yet another embodiment of the present disclosure.

Detailed ways

The term "and/or" in this disclosure describes the relationship between associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A alone exists, A and B exist simultaneously, and B alone exists. situation. The character "/" generally indicates that the related objects are in an "or" relationship.

The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only some of the embodiments of the present disclosure, not all of them. Based on the embodiments in this disclosure, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of this disclosure.

In order to clearly understand the technical solutions of the present disclosure, the prior art solutions are first introduced in detail. In the existing technology, the terminal will only send one PRACH during a random access attempt. If the RAR fails to be received, the next PRACH will be sent. During the entire random process, the terminal always uses the beam corresponding to the SSB that meets the access conditions to send PRACH, Msg3 PUSCH and HARQ-ACK feedback for Msg4 PDSCH. In the research on coverage enhancement technology of Rel-18, multi PRACH transmission in the random access process is supported to improve the transmission performance of PRACH. Among them, multi PRACH may be sent through different beams.

Among them, there are currently two possible solutions for different beam transmission. One is to use ROs associated with different SSBs for PRACH transmission, and the network side equipment (such as the base station) receives through the beams corresponding to different SSBs; the other is to use the RO associated with different SSBs to receive The reference signal received power (English: Reference Signal Received Power, abbreviation: RSRP) selects the RO associated with the SSB. PRACH transmission is performed, but the beam angle corresponding to the SSB is fine-tuned for each transmission. The base station always receives through the beam corresponding to the initial SSB. This scheme takes into account that the uplink and downlink beam directions are basically aligned, but there is a slight deviation. It is hoped that through Based on the initial beam direction, deflect it at different angles to find the optimal direction.

Among them, the structural diagram of MAC RAR is shown in Figure 1. The R in Figure 1 represents the reserved bit (i.e. reserved bit or reserved bit). The UL grant in MAC RAR occupies 27 bits, and the protocol clearly stipulates the channel status. The information (English: Channel State Information, abbreviated as: CSI) request field is the reserved state (that is, reserved state), therefore, there is also 1 reserved bit in the UL grant.

As shown in Figure 1, the terms involved in the MAC RAR structure are explained: Timing Advance Command (English: Timing Advance Command, abbreviation: TAC); Uplink (English: UP LINK, abbreviation: UL) authorization (ie grant) That is, UL grant; temporary cell wireless network temporary mark (English: Temporary Cell-Radio Network Temporary Identity, referred to as: TC-RNTI); Oct1 represents eight bits 1, Oct2 represents eight bits 2,..., Oct7 represents eight bits 7.

Therefore, in the existing technology, there is only one beam for the uplink transmission in the random access channel (English: Random Access Channel, abbreviation: RACH) stage, and the terminal uses this beam to send information during the RACH process. When Rel-18 supports the use of different beams to transmit multi PRACH, the terminal transmits multiple candidate beams, and the base station will not notify the terminal which candidate beam to use for subsequent Msg3 PUSCH and/or HARQ-ACK automatic request retransmission for the Msg4 PDSCH message. feedback. The terminal may select the beam corresponding to the SSB that meets the access conditions or randomly select a beam for subsequent uplink transmission.

The inventor further studied and found that when Rel-18 supports the use of different beams to transmit multi PRACH and the terminal transmits multiple candidate beams, due to the mutuality of uplink and downlink channels, the beam independently selected by the terminal may not be the optimal beam for uplink transmission. In order to improve the performance of subsequent terminal transmissions, the base station can send the target information of the beam indication information carried by the first reserved bit in the RAR or the beam indication information carried by the new field in the RAR to the terminal. Based on the target information, the terminal determines the best Optimal beam, and then use the optimal beam for subsequent message 3 physical uplink shared channel Msg3 PUSCH, and/or send automatic request retransmission confirmation HARQ-ACK feedback for message 4 physical downlink shared channel Msg4 PDSCH, thereby improving the efficiency of subsequent terminal transmissions performance.

Therefore, based on the above-mentioned inventor's creative research, the beam indication method proposed in this disclosure is proposed, In this disclosure, the terminal receives the target information sent by the network side device, and determines the optimal information through the beam indication information carried by the first reserved bit in the RAR included in the target information or the beam indication information carried by the new field in the RAR. Beam; Specifically, the beam index of the optimal beam can be determined based on the corresponding relationship between the status value of the first reserved bit and the candidate beam index, or the beam indication information carried by the new field can be determined through a Bitmap bitmap or The index method is used to determine the beam index of the optimal beam. Since one beam index corresponds to one beam, the determined beam index of the optimal beam can be used to confirm which beam is the optimal beam, and then use the optimal beam for subsequent messages 3 physics Uplink shared channel Msg3 PUSCH, and/or send automatic request retransmission confirmation HARQ-ACK feedback for the message 4 physical downlink shared channel Msg4 PDSCH, thereby improving the performance of subsequent terminal transmissions to solve the problem when Rel-18 supports different beam transmission multi PRACH, when the terminal transmits multiple candidate beams, it cannot realize the technical problem of Msg3 PUSCH and/or HARQ-ACK automatic request retransmission feedback for Msg4 PDSCH message for optimal performance transmission.

As shown in Figure 2, Figure 2 is an interactive schematic diagram of the beam indication method provided by the embodiment of the present disclosure. As shown in Figure 2, in the embodiment of the present disclosure, when the network side device receives the multi PRACH sent by the terminal using different beams, it determines Optimal beam, and generate beam indication information, and then carry the beam indication information through the first reserved bit in RAR or through a new field in RAR, and send it to the terminal in the form of target information to notify the terminal of the optimal beam to be used; The terminal receives the target information sent by the network side device, and determines the optimal beam based on the first reserved bit in the RAR or the beam indication information carried by the new field in the RAR, and then uses the optimal beam for subsequent message 3 physical uplink Shared channel Msg3 PUSCH, and/or send automatic request retransmission confirmation HARQ-ACK feedback for the message 4 physical downlink shared channel Msg4 PDSCH, thereby improving the performance of subsequent terminal transmissions.

Embodiments of the present disclosure will be described below with reference to the accompanying drawings.

Figure 3 is a schematic flow chart of the beam indication method provided by an embodiment of the present disclosure. As shown in Figure 3, the execution subject of the beam indication method provided by this embodiment is a terminal, and the terminal can use multi PRACH transmitted by different beams. The beam indication method provided by the embodiment of the present disclosure includes the following steps:

Step 301: Receive target information sent by the network side device.

Wherein, the target information includes beam indication information carried by the first reserved bit in the random response access RAR; or, the target information includes beam indication information carried by a new field in the random response access RAR.

The first reserved bit in RAR can be the reserved bit in R as shown in Figure 1 and/or the reserved bit in UL grant. The reserved bit can use the reserved bit in MAC RAR and/or the reserved bit in UL grant; the new bit can use Bitmap method or index indication method.

The beam indication information generated by the network side device indicates which beam the terminal uses is the optimal beam through the first reserved bit or through the new field in the RAR. The terminal uses the indicated optimal beam to send message 3 physical uplink shared channel Msg3 PUSCH, and /Or send automatic request retransmission confirmation HARQ-ACK feedback for the message 4 physical downlink shared channel Msg4 PDSCH.

Step 302: Determine the optimal beam according to the target information.

Step 303: Send message 3 physical uplink shared channel Msg3 PUSCH according to the optimal beam, and/or send automatic request retransmission confirmation HARQ-ACK feedback for message 4 physical downlink shared channel Msg4 PDSCH.

Determine the optimal beam among multiple beams used for multi PRACH transmission based on the reserved bit or new bit in MAC RAR. The optimal beam is used as the beam used for uplink Msg3 PUSCH and/or HARQ-ACK feedback transmission for Msg4 PDSCH. It enables the terminal to know which beam to use for transmission, that is, the terminal sends message 3 physical uplink shared channel Msg3 PUSCH according to the determined optimal beam, and/or sends automatic request retransmission confirmation HARQ-ACK for message 4 physical downlink shared channel Msg4 PDSCH. feedback, thereby improving transmission performance.

Optionally, when the target information is the beam indication information carried by the first reserved bit in the RAR, determining the optimal beam based on the target information can be achieved through the following steps:

The optimal beam is determined according to the beam index of the optimal beam.

Wherein, the first reserved bit is a reserved bit in the RAR and/or a reserved bit included in the RAR uplink grant UL grant. The optimal beam is determined based on the beam index of the optimal beam.

Therefore, the first reserved bit can be one reserved bit, or it can be two reserved bits. The following two scenarios will introduce how to determine the optimal value based on the corresponding relationship between the status value of the first reserved bit and the candidate beam index. The beam index of the beam.

Scenario 1. When the first reserved bit is a reserved bit (i.e. 1 bit or 1 bit), it can be a reserved bit in the RAR or a reserved bit included in the UL grant.

Specifically, if the beam indication information in the target information is carried by 1 reserved bit in the RAR band, the beam index of the optimal beam can be determined based on the status value of the reserved bit and through the relationship between the status value and the candidate beam index. In addition, if the reserved bits are reserved bits in the UL grant, the reserved bits may be the CSI request field.

Among them, when the optimal beam is determined through 1 reserved bit, there are 2 candidate beams for multi PRACH transmission. The two status values of the reserved bit correspond to 2 beam indexes respectively.

Exemplarily, in Embodiment 1, the following describes the beam indication method in detail, taking the MAC RAR carrying a 1-bit indication field for indicating the optimal beam as an example.

This 1 bit can be the reserved bit in MAC RAR, or it can be the CSI request field in UL grant, which is not specifically limited here. One bit can correspond to two status values of "0" and "1", and each status value corresponds to a candidate beam. Therefore, two candidate beams can be determined. For example, when the 1-bit status value is "0", it corresponds to the first candidate beam, which is regarded as the optimal beam. At this time, the terminal uses the first candidate beam to send uplink Msg3 PUSCH and/or HARQ-ACK feedback for Msg4 PDSCH. ; Or, when the 1-bit status value is "1", it corresponds to the second candidate beam, which is regarded as the optimal beam. At this time, the terminal uses the second candidate beam to send uplink Msg3 PUSCH and/or HARQ-ACK feedback for Msg4 PDSCH .

Specifically, the beam index of the optimal beam may be the SSB synchronization signal block index used for multi PRACH transmission, or the beam index of the optimal beam may be the RO index of multi PRACH transmission.

Assume that the first PRACH of multi PRACH transmission is transmitted on the RO associated with SSB1, and the second PRACH is transmitted on the RO associated with SSB2. Then the first candidate beam index can be SSB1, that is, the first candidate beam is the beam corresponding to SSB1; the second candidate beam index can be SSB2, that is, the second candidate beam is the beam corresponding to SSB2. Alternatively, the first candidate beam index can be RO1, that is, the first candidate beam is the beam used by the terminal in the PRACH sent on RO1; the second candidate beam index can be RO2, that is, the second candidate beam is the terminal in RO2 The beam used when sending PRACH.

Scenario 2: When the first reserved bit is two reserved bits (i.e. 2 bits or 2 bits), it can be the reserved bits in the RAR and the reserved bits included in the UL grant.

Specifically, if the beam indication information in the target information is carried by 2 reserved bits in the RAR, the beam index of the optimal beam can be determined based on the 2-bit status value through the relationship between the status value and the candidate beam index. . For example, the status values corresponding to the two reserved bits carried in the MAC RAR message are combined in a predefined order to obtain the status values of the two reserved bits, and the beam is determined based on the status values of the two reserved bits. Index; or, determine the beam index according to the candidate beam information indicated by the status values corresponding to the two reserved bits respectively, and the candidate beam information is used to represent one beam among the N candidate beams. In addition, if the reserved bits in the UL grant in the 2 bits can be the CSI request field.

Among them, when the optimal beam is jointly determined by 2 reserved bits, there are 2 to 4 candidate beams for multi PRACH transmission, that is, there are up to 4 candidate beams for multi PRACH transmission, and the four status values of reserved bits correspond to up to 4 beam indexes. .

Exemplarily, in Embodiment 2, the following describes the beam indication method in detail, taking the MAC RAR carrying a 2-bit indication field for indicating the optimal beam as an example.

MAC RAR carries a 2-bit indication field to indicate the optimal beam, including the reserved bit in MAC RAR and the CSI request field in UL grant. The 2-bit joint indication method is not limited. For example, method 11: 2-bit status values can be combined to indicate four status values of "00", "01", "10" and "11", corresponding to the first, second, third and fourth respectively. candidate beam. If the status value is "01", the terminal uses the second candidate beam to send uplink Msg3 PUSCH and/or HARQ-ACK feedback for Msg4 PDSCH. Among them, it can be that the status value of the reserved bit in the MAC RAR comes first, and the status value of the SCI request field comes after; it can also be that the status value of the SCI request field comes first, and the status value of the reserved bit in the MAC RAR comes after.

Method 12: The 2-bit status value can also be indicated separately. For example, the reserved bit status value "0" in MAC RAR is used to determine the first two candidate beams, and the reserved bit status value "1" is used to indicate the last two candidate beams, and The two status values of the CSI request field are used to determine whether the optimal beam is the first candidate beam or the second candidate beam among the first two candidate beams or the last two candidate beams. For example, assume that the status value of the reserved bit in the MAC RAR is "0", the status value of the CSI request field is "1", and the terminal uses the second candidate beam among the first two candidate beams, that is, up to four candidate beams. The second candidate beam sends an uplink Msg3 PUSCH and/or targets Msg4 PDSCH HARQ-ACK feedback.

Similar to method 1, the grouping of the first two candidate beams and the last two candidate beams can also be determined through the CSI request field, and the optimal beam is determined to be the first candidate in each group through the status value of the reserved bit in the MAC RAR. Beam is still the second candidate beam. For example, assuming that the status value of the reserved bit in the MAC RAR is "0" and the status value of the CSI request field is "1", the terminal uses the first candidate beam among the last two candidate beams, that is, the first candidate beam among the maximum four candidate beams. The third candidate beam sends uplink Msg3 PUSCH and/or HARQ-ACK feedback for Msg4 PDSCH.

Among them, the 2-bit indication field can indicate up to 4 candidate beams. However, if the beams used in multi PRACH transmission are less than 4, the network side device can still indicate through 2 bits, but some status values do not have corresponding candidate beams. Same as the first embodiment, the candidate beam index in this embodiment can be the SSB index, then the candidate beam is the beam corresponding to the SSB, or the candidate beam index can be the RO index, then the candidate beam is the one used by the terminal when sending PRACH on the RO. beam.

Optionally, when the target information is the beam indication information carried by a new field in the RAR, determining the optimal beam based on the target information can be achieved through the following steps:

Step a1: Determine the beam index of the optimal beam according to the beam indication information carried in the new field through the Bitmap bitmap; or,

Step a2: Determine the beam index of the optimal beam through indexing based on the beam indication information carried in the new field.

Among them, the optimal beam is determined based on the beam index of the optimal beam.

Specifically, the terminal receives MAC RAR and determines the optimal beam through the new bits in MAC RAR; the terminal uses the optimal beam to send uplink Msg3 PUSCH and/or HARQ-ACK feedback for Msg4 PDSCH. The beam index of the optimal beam can be determined in at least two ways below, and then the optimal beam can be determined: one way (i.e., way 21) is for the terminal to determine the optimal beam indicated by the new bit according to the Bitmap bitmap; the other way The method (ie method 22) is for the terminal to determine the optimal beam for the new bit indication based on the index method.

Wherein, the N is a fixed value; or,

The N is a non-fixed value.

Whether N here is a fixed value or a non-fixed value, it is predefined or configured through high-level signaling. In addition, if N is a non-fixed value, N needs to be configured in different situations through predefinition or high-level signaling, such as dividing N by frequency bands, that is, different frequency bands correspond to different Ns.

Specifically, for the above method 21, the new bits in MAC RAR are fixed values, such as 64bits; or, the size of the new bits is a non-fixed value, for example, determined by the frequency domain range, FR1 increases by 8bits, and FR2 increases by 64bits. Among them, FR1 and FR2 are the two areas of the 5G spectrum, and FR is the Frequency Range, which is the frequency range. The frequency range of FR1 is 450MHz to 6GHz, also called Sub6G (below 6GHz). The frequency range of FR2 is 24GHz to 52GHz. Most of the electromagnetic wave wavelengths in this spectrum are millimeter-level, so it is also called millimeter wave mmWave (generally greater than 30 GHz is called millimeter wave).

For mode 22, the new bits in MAC RAR are fixed values, such as 6 bits; or, the size of the new bits is a non-fixed value, such as determined by the frequency domain range, FR1 increases by 3 bits, and FR2 increases by 6 bits.

Optionally, based on the beam indication information carried in the new field, the beam index of the optimal beam is determined through a Bitmap bitmap, which can be achieved through the following steps:

Among them, the number of bits whose status value is the first preset value is greater than 1 or equal to 1, and the beam index corresponding to one bit (that is, the beam index corresponding to one bit whose status value is the first preset value) corresponds to an optimal Beam index (that is, the beam index of the optimal beam).

The first preset value here can be any predefined value. For example, the first preset value is 1, that is, the status value of the bit is 1, which means that the beam index corresponding to the bit with the status value 1 is the beam of the optimal beam. index. The first preset value is not limited here. The corresponding relationship between bits and beam indexes, for example, the first bit corresponds to the first SSB index (ie, candidate beam index).

Optionally, when the number of bits whose status value is the first preset value is greater than 1, the message 3 physical uplink shared channel Msg3 PUSCH is sent according to the optimal beam, and/or the message 4 physical downlink shared channel is sent Channel Msg4 PDSCH's automatic request for retransmission confirmation HARQ-ACK feedback can be achieved through the following steps:

Step b1: Select a target optimal beam from a plurality of the optimal beams, where the target optimal beam is any optimal beam among a plurality of the optimal beams;

Step b2: Send the message 3 physical uplink shared channel Msg3 PUSCH according to the target optimal beam, and/or send an automatic request for the message 4 physical downlink shared channel Msg4 PDSCH Retransmission confirms HARQ-ACK feedback.

Among them, the beam index of the optimal beam can be determined by the Bitmap bitmap method to be greater than or equal to 1 beam index.

Illustratively, in Embodiment 3, for Mode 21, the following describes the beam indication method in detail, taking the beam index of the optimal beam using Bitmap as an example.

The new bits of MAC RAR indicate the optimal beam through Bitmap method. The terminal determines the beam index of the optimal beam through the Bitmap method, and the optimal beam is determined by the beam index.

Specifically, one case is that the length of the newly added bits can be a fixed value, such as 64 bits. One bit corresponds to one candidate beam. If the bit status value is "0", it means that the candidate beam is not the optimal beam. If the bit If the status value is "1", it means that the candidate beam is the optimal beam, and the terminal uses the candidate beam to send uplink Msg3 PUSCH and/or HARQ-ACK feedback for Msg4 PDSCH.

The bitmap method can indicate an optimal beam. For example, a candidate beam with a bit status value of "1" is the optimal beam, and only one bit status value is "1".

Optionally, the bitmap method can indicate more than one optimal beam, and the terminal can arbitrarily select a beam among multiple beams to transmit subsequent Msg3 PUSCH or HARQ-ACK feedback for Msg4 PDSCH.

The beam index may be an SSB index for multi PRACH transmission, or the beam index may be an RO index for multi PRACH transmission.

64 bits is mainly considered when the candidate beam index is an SSB index. Up to 64 SSBs can be configured, and there may be up to 64 candidate beams. Each bit corresponds to an SSB index, and the candidate beam is the beam corresponding to the SSB index. Bitmap length can be any length determined by any factors.

In another case, the length of the bitmap may not be fixed, for example, it may change according to the frequency domain range. If the current frequency band is FR1, you only need to add an 8-bit bitmap indication to the MAC RAR. If the current frequency band is FR2, a 64-bit bitmap indication needs to be added to the MAC RAR. The above number of bits is mainly determined by considering that when the candidate beam index is the SSB index, the FR1 network side device can only configure a maximum of 8 SSBs, so there are only a maximum of 8 candidate beams, while the FR2 network side device can configure a maximum of 64 SSBs, and there may be a maximum of 8 SSBs. There are 64 candidate beams, each bit corresponds to an SSB index, and the candidate beam is the beam corresponding to the SSB index.

It should be noted that 8 and 64 are only examples and may be other values determined by the frequency domain range. The bit length can also be multiple bit lengths determined by other factors.

Similar to Embodiment 1 and Embodiment 2, each bit in this embodiment can also correspond to an RO index, and the candidate beam is the beam used by the PRACH transmitted by the terminal on the RO.

Optionally, determining the beam index of the optimal beam by indexing based on the beam indication information carried in the new field can be achieved through the following steps:

Among them, each status value of the newly added bit corresponds to a beam index. For example, the status value that does not correspond to the beam index is set to reserved; the remaining bits in the 8-bit byte alignment are used as reserved bits.

Exemplarily, in Embodiment 4, for mode 22, the following describes the beam indication method in detail by taking the beam index of the optimal beam determined by indexing as an example.

The new bits of MAC RAR indicate the optimal beam through indexing. The terminal determines the optimal beam through indexing based on the newly added bits.

Specifically, in one case, the length of the newly added bits can be a fixed value, such as 6 bits, and a total of 2^6, that is, 64 status values can be indicated. A status value can indicate a candidate beam. For example, the status value "000000" can indicate the first candidate beam index. At this time, the terminal uses the first candidate beam to send uplink Msg3 PUSCH and/or HARQ-ACK feedback for Msg4 PDSCH. The status value "000010" may indicate the third candidate beam index, and the terminal uses the third candidate beam to send uplink Msg3 PUSCH and/or HARQ-ACK feedback for Msg4 PDSCH.

The candidate beam index may be an SSB index, then the candidate beam is the beam corresponding to the SSB, or the candidate beam index may be an RO index, then the candidate beam is the beam used by the terminal when transmitting PRACH on the RO. When index indication is used, the network side device can only indicate one optimal beam through the new bit.

In another case, the length of the newly added bits may not be fixed, for example, it may change according to the frequency domain range. If the current frequency band is FR1, you only need to add a 3-bit bitmap indication to the MAC RAR. If the current frequency band is FR2, a 6-bit bitmap indication needs to be added to the MAC RAR. The above number of bits is mainly determined by considering that when the candidate beam index is the SSB index, the FR1 network side device can only configure a maximum of 8 SSBs, so there are only a maximum of 8 candidate beams, while the FR2 network side device can configure a maximum of 64 SSBs, and there may be a maximum of 8 SSBs. 64 candidate beams, each status value corresponds to An SSB index, the candidate beam is the beam corresponding to the SSB index.

It should be noted that 3 and 6 are only exemplary, and may be other bit lengths determined by the frequency domain range, or multiple bit lengths determined by other factors.

Similar to Embodiment 1, Embodiment 2 and Embodiment 3, each bit in this embodiment can also correspond to an RO index, and the candidate beam is the beam used by the PRACH transmitted by the terminal on the RO.

It should be noted that MAC RAR needs to pay attention to byte alignment when adding new bits. One byte corresponds to 8 bits. Therefore, in this embodiment, no matter whether 3 bits, 6 bits or any other bits are added, 8-bit byte alignment is required. If there is no bit used for optimal beam indication among the 8 bits, it is a reserved bit, which is the same as the 1 reserved bit in the prior art. It will be used by other new features in subsequent version evolutions.

Therefore, this disclosure uses the reserved bit or new bit in the MAC RAR to indicate the optimal beam among the multiple beams used for multi PRACH transmission, and uses the optimal beam as the uplink Msg3 PUSCH and/or HARQ-ACK feedback for Msg4 PDSCH The beam used for transmission improves the performance of subsequent terminal transmission.

FIG. 4 is a schematic flowchart of a beam indication method provided by another embodiment of the present disclosure. As shown in FIG. 4 , the execution subject of the beam indication method provided by this embodiment is a network-side device. The beam indication method provided by the embodiment of the present disclosure includes the following steps:

Step 401: Determine target information.

Wherein, the target information includes beam indication information carried by the first reserved bit in the random response access RAR; or, the target information includes beam indication information carried by a new field in the random response access RAR; the beam The indication information is used to indicate the optimal beam of the terminal.

Step 402: Send target information to the terminal.

The behavior of the network side equipment (here it can refer to the base station) is similar to that of the terminal, that is, the reserved bit or new bit in the MAC RAR indicates the optimal beam, and the base station receives the uplink Msg3 PUSCH and/or HARQ for Msg4 PDSCH on the optimal beam. -ACK feedback.

Specifically, the network side device indicates which beam the terminal uses is the optimal beam through the first reserved bit or through the new field in the RAR, so that the terminal uses the indicated optimal beam to send the message 3 Physical uplink shared channel Msg3 PUSCH, and/or send automatic request retransmission confirmation HARQ-ACK feedback for message 4 physical downlink shared channel Msg4 PDSCH.

Specifically, when the base station receives multiple PRACHs sent by the terminal using different beams, the base station can determine the optimal beam and notify the terminal of the optimal beam, so that the terminal can use the optimal beam to perform subsequent Msg3 PUSCH and Msg4 HARQ-ACK feedback, thereby improving the performance of subsequent terminal transmissions. It solves the problem that when Rel-18 supports the use of different beams to transmit multi PRACH and the terminal transmits multiple candidate beams, Msg3 PUSCH and/or HARQ-ACK automatic request retransmission feedback for Msg4 PDSCH messages cannot be realized for optimal performance transmission. technical problem.

Optionally, when the target information is the beam indication information carried by the first reserved bit in the RAR, the determination of the target information can be achieved through the following steps:

Step c1: Generate beam indication information according to the corresponding relationship between the status value of the first reserved bit and the candidate beam index; wherein the first reserved bit is a reserved bit in the RAR and/or the RAR uplink grant UL grant. Contains reserved bits;

Step c2: Use the first reserved bit to carry the beam indication information, and use the message carrying the beam indication information in the first reserved bit as the target information.

The first reserved bit may be one reserved bit, or may be two reserved bits. The following two scenarios describe how to generate beam indication information based on the corresponding relationship between the status value of the first reserved bit and the candidate beam index.

Scenario 3. Refer to scenario 1. When the first reserved bit is a reserved bit (i.e. 1 bit or 1 bit), it can be a reserved bit in the RAR or a reserved bit included in the UL grant. Among them, the reserved bits in the UL grant can be the CSI request field.

Specifically, when determining the optimal beam through 1 reserved bit, there are 2 candidate beams for multi PRACH transmission. The two status values of the reserved bit correspond to 2 beam indexes respectively. The specific implementation process of indicating the optimal beam by carrying a 1-bit indication field in the MAC RAR can be found in Embodiment 1, which will not be described again here.

Scenario 4. Refer to scenario 2. When the first reserved bit is two reserved bits (ie 2 bits or 2 bits), it can be the reserved bits in the RAR and the reserved bits included in the UL grant.

Specifically, when the optimal beam is jointly determined through 2 reserved bits, there are 2 to 4 candidate beams for multi PRACH transmission, that is, there are up to 4 candidate beams for multi PRACH transmission, reserved The four status values of bits correspond to up to 4 beam indexes. The specific implementation process of the MAC RAR carrying a 2-bit indication field to indicate the optimal beam can be found in Embodiment 2, which will not be described again here.

Optionally, when the target information is the beam indication information carried by a new field in the RAR, the determination of the target information can be achieved through the following steps:

Step d1: Indicate the beam index of the optimal beam in the form of a Bitmap bitmap; or, indicate the beam index of the optimal beam in the form of an index;

Step d2: Generate the beam indication information according to the beam index of the optimal beam;

Step d3: Use the new field to carry the beam indication information, and the new field carries the message of the beam indication information as the target information.

Specifically, the network side device indicates the optimal beam through the new bits in the MAC RAR, informs the terminal to use the optimal beam to send uplink Msg3 PUSCH and/or HARQ-ACK feedback for Msg4 PDSCH, and receives it on the optimal beam Uplink Msg3 PUSCH and/or HARQ-ACK feedback for Msg4 PDSCH. The beam index of the optimal beam, and thus the optimal beam, can be indicated in at least two ways: one way (i.e., mode 31) is for the base station to indicate the optimal beam by adding new bits according to the Bitmap; the other way (i.e., mode 31) Method 32) is that the base station indicates the optimal beam through new bits according to the index method.

Wherein, the N is a fixed value; or,

The N is a non-fixed value.

Specifically, for the above method 31, the newly added bits in MAC RAR are fixed values, such as 64bits; or, the newly added bit sizes are non-fixed values, for example, determined by the frequency domain range, FR1 increases by 8bits, and FR2 increases by 64bits.

For mode 32, the newly added bits in MAC RAR are fixed values, such as 6 bits; or, the newly added bit size is a non-fixed value, such as determined by the frequency domain range, FR1 increases by 3 bits, and FR2 increases by 6 bits.

Optionally, indicating the beam index of the optimal beam through a Bitmap bitmap can be implemented through the following steps:

Among them, the number of bits whose status value is the first preset value is greater than 1 or equal to 1, and one ratio The corresponding beam index corresponds to an optimal beam index.

For method 31, the implementation process of using the new bits of MAC RAR to indicate the optimal beam through the Bitmap method can be found in Embodiment 3, which will not be described again here.

Optionally, indicating the beam index of the optimal beam through indexing can be achieved through the following steps:

For method 32, the implementation process of using the new bits of MAC RAR to indicate the optimal beam through indexing can be found in Embodiment 4, which will not be described again here.

Therefore, in this disclosure, when the base station receives the multi PRACH sent by the terminal using different beams, When, the base station determines the optimal beam and notifies the terminal of the optimal beam, so that the terminal can use the optimal beam to perform subsequent Msg3 PUSCH and HARQ-ACK feedback for Msg4 PDSCH, thereby improving the performance of subsequent terminal transmissions.

Figure 5 is a schematic structural diagram of a beam indicating device provided by an embodiment of the present disclosure. As shown in Figure 5, the beam indicating device provided by this embodiment is applied to a terminal. The beam indicating device provided by this embodiment includes: a transceiver 500. Data is received and sent under the control of processor 510.

In FIG. 5 , the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 510 and various circuits of the memory represented by memory 520 are linked together. The bus architecture can also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are all well known in the art and therefore will not be described further herein. The bus interface provides the interface. The transceiver 500 may be a plurality of components, including a transmitter and a receiver, providing a unit for communicating with various other devices over transmission media, including wireless channels, wired channels, optical cables, and other transmission media. The processor 510 is responsible for managing the bus architecture and general processing, and the memory 520 can store data used by the processor 510 when performing operations.

The processor 510 may be a central processing unit (CPU), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field-Programmable Gate Array, FPGA) or a complex programmable logic device (Comple6 Programmable Logic Device). ,CPLD), the processor can also adopt a multi-core architecture.

In this embodiment, the memory 520 is used to store computer programs; the transceiver 500 is used to send and receive data under the control of the processor 510; the processor 510 is used to read the computer program in the memory and perform the following operations:

Determine the optimal beam based on the target information;

Send message 3 physical uplink shared channel Msg3 PUSCH according to the optimal beam, and/or send automatic request retransmission confirmation for message 4 physical downlink shared channel Msg4 PDSCH HARQ-ACK feedback.

Optionally, the processor 510 is configured to determine the optimal beam according to the target information when the target information is the beam indication information carried by the first reserved bit in the RAR, specifically including:

Determine the optimal beam according to the beam index of the optimal beam;

Optionally, the processor 510 is configured to determine the optimal beam based on the target information when the target information is beam indication information carried by a new field in the RAR, specifically including:

The optimal beam is determined according to the beam index of the optimal beam.

Wherein, the N is a fixed value; or,

The N is a non-fixed value.

Optionally, the processor 510 is configured to determine the beam index of the optimal beam based on the beam indication information carried in the newly added field through a Bitmap bitmap, specifically including:

Optionally, the processor 510 is configured to send the message 3 physical uplink shared channel Msg3 PUSCH according to the optimal beam when the number of bits with the status value being the first preset value is greater than 1, and/or send the message 4 When the automatic request for retransmission of the physical downlink shared channel Msg4 PDSCH confirms the HARQ-ACK feedback, it specifically includes:

Select a target optimal beam from a plurality of the optimal beams, where the target optimal beam is a plurality of the optimal beams. Any optimal beam among the above optimal beams;

Send message 3 physical uplink shared channel Msg3 PUSCH according to the target optimal beam, and/or send automatic request retransmission confirmation HARQ-ACK feedback for message 4 physical downlink shared channel Msg4 PDSCH.

Optionally, the processor 510 is configured to determine the beam index of the optimal beam by indexing based on the beam indication information carried in the new field, specifically including:

Determine the beam index of the optimal beam according to the corresponding relationship between the status value of the newly added field and the candidate beam index;

The N bits included in the new field constitute 2 ^N status values, and one status value corresponds to one candidate beam index.

It should be noted here that the beam pointing device provided by the present disclosure can implement all the method steps implemented in the method embodiments shown in Figures 2 and 3, and can achieve the same technical effect. No further explanation will be given in this embodiment. The same parts and beneficial effects as those in the method embodiment will be described in detail.

Figure 6 is a schematic structural diagram of a beam indicating device provided by another embodiment of the present disclosure. As shown in Figure 6, the beam indicating device provided by this embodiment is applied to a terminal, and the beam indicating device 600 provided by this embodiment includes:

The receiving unit 601 is configured to receive target information sent by the network side device; wherein the target information includes beam indication information carried by the first reserved bit in the random response access RAR; or the target information includes random response access The beam indication information carried by the new field in RAR;

The first processing unit 602 is used to determine the optimal beam according to the target information;

The second processing unit 603 is configured to send the message 3 physical uplink shared channel Msg3 PUSCH according to the optimal beam, and/or send the automatic request retransmission confirmation HARQ-ACK feedback for the message 4 physical downlink shared channel Msg4 PDSCH.

Optionally, the first processing unit is specifically used for:

When the target information is the beam indication information carried by the first reserved bit in the RAR, according to the The corresponding relationship between the state value of the first reserved bit and the candidate beam index is determined to determine the beam index of the optimal beam;

Determine the optimal beam according to the beam index of the optimal beam;

Optionally, the first processing unit is specifically used for:

When the target information is the beam indication information carried by the newly added field in the RAR, the beam index of the optimal beam is determined through the Bitmap bitmap according to the beam indication information carried by the new field; or,

The optimal beam is determined according to the beam index of the optimal beam.

Wherein, the N is a fixed value; or,

The N is a non-fixed value.

Optionally, the first processing unit is specifically used for:

When the status value of any bit among the N bits included in the new field is the first preset value, the beam index corresponding to the bit is the beam index of the optimal beam;

Optionally, the second processing unit is specifically used for:

When the number of bits whose status value is the first preset value is greater than 1, a target optimal beam is selected from a plurality of the optimal beams, and the target optimal beam is any one of the plurality of optimal beams. optimal beam;

Optionally, the first processing unit is also specifically used for:

It should be noted here that the beam pointing device provided by the present disclosure can implement all the method steps implemented in the method embodiments of Figures 2-3, and can achieve the same technical effect. The method and method in this embodiment will no longer be discussed here. The same parts and beneficial effects of the embodiments will be described in detail.

Figure 7 is a schematic structural diagram of a beam indicating device provided by yet another embodiment of the present disclosure. As shown in Figure 7, the beam indicating device provided by this embodiment is applied to network side equipment. The beam pointing device provided by this embodiment includes: a transceiver 700, used to receive and send data under the control of the processor 710.

In FIG. 7 , the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 710 and various circuits of the memory represented by memory 720 are linked together. The bus architecture can also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are all well known in the art and therefore will not be described further herein. The bus interface provides the interface. The transceiver 700 may be a plurality of components, including a transmitter and a receiver, providing a unit for communicating with various other devices over transmission media, including wireless channels, wired channels, optical cables, and other transmission media. The processor 710 is responsible for managing the bus architecture and general processing, and the memory 720 can store data used by the processor 710 when performing operations.

The processor 710 may be a central processing unit (CPU), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field-Programmable Gate Array, FPGA) or a complex programmable logic device (Comple8Programmable Logic Device, CPLD), the processor can also adopt a multi-core architecture.

In this embodiment, the memory 720 is used to store computer programs; the transceiver 700 is used to send and receive data under the control of the processor; the processor 710 is used to read the computer program in the memory and perform the following operations:

Send target information to the terminal.

Optionally, the processor 710 is configured to determine the target information when the target information is the beam indication information carried by the first reserved bit in the RAR, specifically including:

Optionally, the processor 710 is configured to determine the target information when the target information is the beam indication information carried by a new field in the RAR, specifically including:

Wherein, the N is a fixed value; or,

The N is a non-fixed value.

Optionally, the processor 710 is configured to indicate the beam index of the optimal beam through a Bitmap bitmap, specifically including:

Optionally, the processor 710 is configured to indicate the beam index of the optimal beam through an index, specifically including:

It should be noted here that the beam pointing device provided by the present disclosure can implement all the method steps implemented in the method embodiments shown in Figures 2 and 4, and can achieve the same technical effect. No further explanation will be given here. The same parts and beneficial effects as those in the method embodiment will be described in detail.

Figure 8 is a schematic structural diagram of a beam indicating device provided by yet another embodiment of the present disclosure. As shown in Figure 8, the beam indicating device provided by an embodiment of the present disclosure is applied to network side equipment, then the beam indicating device 800 provided by this embodiment includes :

Processing unit 801, configured to determine target information; wherein the target information includes beam indication information carried by the first reserved bit in the random response access RAR; or the target information includes a new addition in the random response access RAR The beam indication information carried in the field; the beam indication information is used to indicate the optimal beam of the terminal;

The sending unit 802 is used to send target information to the terminal.

Optionally, the processing unit is specifically used for:

When the target information is the beam indication information carried by the first reserved bit in the RAR, the beam indication information is generated according to the corresponding relationship between the status value of the first reserved bit and the candidate beam index; wherein, the first reserved bit The bits are reserved bits in the RAR and/or reserved bits contained in the RAR uplink authorization UL grant;

Optionally, the processing unit is also specifically used for:

When the target information is the beam indication information carried by the new field in the RAR, through Bitmap bitmap indicates the beam index of the optimal beam; or index indicates the beam index of the optimal beam;

Wherein, the N is a fixed value; or,

The N is a non-fixed value.

Optionally, the processing unit is specifically used for:

Optionally, the processing unit is also specifically used for:

It should be noted here that the beam indicating device provided by the present disclosure can implement all the method steps implemented in the method embodiments of Figures 2 and 4, and can achieve the same technical effect. The method and method in this embodiment will no longer be discussed here. The same parts and beneficial effects of the embodiments will be described in detail.

It should be noted that the division of units in the embodiment of the present disclosure is schematic and is only a logical Editing function division, there may be other division methods in actual implementation. In addition, each functional unit in various embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit. The above integrated units can be implemented in the form of hardware or software functional units.

The integrated unit may be stored in a processor-readable storage medium if it is implemented in the form of a software functional unit and sold or used as an independent product. Based on this understanding, the technical solution of the present disclosure is essentially or contributes to the existing technology, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , including several instructions to cause a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the methods of various embodiments of the present disclosure. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program code. .

An embodiment of the present disclosure also provides a processor-readable storage medium. The processor-readable storage medium stores a computer program, and the computer program is used to cause the processor to execute any of the above method embodiments.

The processor-readable storage medium may be any available media or data storage device that the processor can access, including but not limited to magnetic storage (such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.), optical storage (such as CD, DVD, BD, HVD, etc.), and semiconductor memories (such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid state drive (SSD)), etc.

Those skilled in the art will appreciate that embodiments of the present disclosure may be provided as methods, systems, or computer program products. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment that combines software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, magnetic disk storage, optical storage, and the like) embodying computer-usable program code therein.

The disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the disclosure. It will be understood that each process and/or block in the flowchart illustrations and/or block diagrams, and combinations of processes and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine, The instructions, which are caused to be executed by a processor of a computer or other programmable data processing device, produce means for carrying out the functions specified in the flow diagram block or blocks and/or the block diagram block or blocks.

These processor-executable instructions may also be stored in a processor-readable memory that causes a computer or other programmable data processing apparatus to operate in a particular manner, such that the generation of instructions stored in the processor-readable memory includes the manufacture of the instruction means product, the instruction device implements the function specified in one process or multiple processes in the flow chart and/or one block or multiple blocks in the block diagram.

These processor-executable instructions may also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce computer-implemented processing, thereby causing the computer or other programmable device to The instructions that are executed provide steps for implementing the functions specified in a process or processes of the flowchart diagrams and/or a block or blocks of the block diagrams.

Obviously, those skilled in the art can make various changes and modifications to the present disclosure without departing from the spirit and scope of the disclosure. In this way, if these modifications and variations of the present disclosure fall within the scope of the claims of the present disclosure and equivalent technologies, the present disclosure is also intended to include these modifications and variations.

Claims

A beam indication method, characterized in that it is applied to a terminal, and the method includes:

Receive target information sent by the network side device; wherein the target information includes beam indication information carried by the first reserved bit in the random response access RAR; or,

The target information includes beam indication information carried in a new field in the random response access RAR;

Determine the optimal beam based on the target information;

Send message 3 physical uplink shared channel Msg3 PUSCH according to the optimal beam, and/or send automatic request retransmission confirmation HARQ-ACK feedback for message 4 physical downlink shared channel Msg4 PDSCH.
The method according to claim 1, characterized in that when the target information is the beam indication information carried by the first reserved bit in the RAR, determining the optimal beam according to the target information includes:

Determine the beam index of the optimal beam according to the corresponding relationship between the state value of the first reserved bit and the candidate beam index;

Determine the optimal beam according to the beam index of the optimal beam;

Wherein, the first reserved bit is a reserved bit in the RAR and/or a reserved bit included in the RAR uplink grant UL grant.
The method according to claim 1, characterized in that when the target information is beam indication information carried by a new field in the RAR, determining the optimal beam according to the target information includes:

According to the beam indication information carried in the new field, determine the beam index of the optimal beam through the Bitmap bitmap; or,

According to the beam indication information carried in the new field, determine the beam index of the optimal beam through indexing;

The optimal beam is determined according to the beam index of the optimal beam.
The method according to claim 3, characterized in that the new field includes N bits, N is an integer greater than 1, the N is predefined through a protocol, or the N is configured through high-level signaling;

Wherein, the N is a fixed value; or,

The N is a non-fixed value.
The method according to claim 4, characterized in that determining the beam index of the optimal beam according to the beam indication information carried in the newly added field through a Bitmap bitmap includes:

If the status value of any bit among the N bits included in the new field is the first preset value, then the beam index corresponding to the bit is the beam index of the optimal beam;

Wherein, the number of bits whose status value is the first preset value is greater than 1 or equal to 1, and the beam index corresponding to one bit corresponds to an optimal beam index.
The method according to claim 5, characterized in that when the number of bits whose status value is the first preset value is greater than 1, the message 3 physical uplink shared channel Msg3 PUSCH is sent according to the optimal beam, and /or send automatic request retransmission confirmation HARQ-ACK feedback for the message 4 physical downlink shared channel Msg4 PDSCH, including:

Select a target optimal beam from a plurality of the optimal beams, where the target optimal beam is any optimal beam among a plurality of the optimal beams;

Send message 3 physical uplink shared channel Msg3 PUSCH according to the target optimal beam, and/or send automatic request retransmission confirmation HARQ-ACK feedback for message 4 physical downlink shared channel Msg4 PDSCH.
The method according to claim 4, characterized in that the beam index of the optimal beam is determined by indexing according to the beam indication information carried in the new field, including:

Determine the beam index of the optimal beam according to the corresponding relationship between the status value of the newly added field and the candidate beam index;

The N bits included in the new field constitute 2 N status values, and one status value corresponds to one candidate beam index.
The method according to any one of claims 2 to 7, characterized in that the beam index of the optimal beam is the synchronization signal block SSB index used for physical random access channel PRACH transmission, wherein the optimal beam The beam is the beam used to send the corresponding PRACH on the random access channel transmission opportunity RO associated with the SSB index; or,

The beam index of the optimal beam is the RO index used for PRACH transmission; wherein the optimal beam is the beam used to transmit the corresponding PRACH on the target RO corresponding to the RO index.
A beam indication method, characterized in that it is applied to network side equipment, and the method includes:

Determine target information; wherein the target information includes beam indication information carried by the first reserved bit in the random response access RAR; or, the target information includes beam indication information carried by a new field in the random response access RAR ;The beam indication information is used to indicate the optimal beam of the terminal;

Send the target message to the terminal.
The method according to claim 9, characterized in that when the target information is the beam indication information carried by the first reserved bit in the RAR, the determining the target information includes:

According to the corresponding relationship between the state value of the first reserved bit and the candidate beam index, the beam indication information is generated; wherein the first reserved bit is the reserved bit in the RAR and/or the reserved bit included in the RAR uplink grant UL grant. leave bits;

The beam indication information is carried by the first reserved bit, and the message carrying the beam indication information by the first reserved bit is used as the target information.
The method according to claim 9, characterized in that when the target information is beam indication information carried by a new field in the RAR, the determining the target information includes:

Indicate the beam index of the optimal beam in the form of Bitmap bitmap; or indicate the beam index of the optimal beam in the form of index;

Generate the beam indication information according to the beam index of the optimal beam;

The beam indication information is carried through the new field, and the message carrying the beam indication information in the new field is used as the target information.
The method according to claim 11, characterized in that the new field includes N bits, N is an integer greater than 1, the N is predefined through a protocol, or the N is configured through high-level signaling;

Wherein, the N is a fixed value; or,

The N is a non-fixed value.
The method according to claim 12, characterized in that indicating the beam index of the optimal beam through a Bitmap bitmap includes:

When the status value of any bit among the N bits included in the new field indicates that the status value is the first preset value, the beam index corresponding to the bit is the beam index of the optimal beam;

Wherein, the number of bits whose status value is the first preset value is greater than 1 or equal to 1, and the beam index corresponding to one bit corresponds to an optimal beam index.
The method according to claim 13, characterized in that when the status value is the first preset value When the number of bits is greater than 1, the beam indication information is used to instruct the terminal to select the target optimal beam from multiple optimal beams; wherein the target optimal beam is one of the multiple optimal beams. any optimal beam.
The method according to claim 12, characterized in that the beam index indicating the optimal beam by indexing includes:

Through the corresponding relationship between the state value of the new field and the candidate beam index, the beam index of the optimal beam is indicated; wherein, the N bits included in the new field constitute 2 N state values, and one state value corresponds to one candidate. Beam index.
The method according to any one of claims 10 to 15, characterized in that the beam index of the optimal beam is the synchronization signal block SSB index used for physical random access channel PRACH transmission, wherein the optimal beam The beam is the beam used to send the corresponding PRACH on the random access channel transmission opportunity RO associated with the SSB index; or,

The beam index of the optimal beam is the RO index used for PRACH transmission; wherein the optimal beam is the beam used to transmit the corresponding PRACH on the target RO corresponding to the RO index.
A beam pointing device, characterized in that the device is used in a terminal, and the device includes a memory, a transceiver, and a processor:

Memory, used to store computer programs; transceiver, used to send and receive data under the control of the processor; processor, used to read the computer program in the memory and perform the following operations:

Receive target information sent by the network side device; wherein the target information includes beam indication information carried by the first reserved bit in the random response access RAR; or,

The target information includes beam indication information carried in a new field in the random response access RAR;

Determine the optimal beam based on the target information;

Send message 3 physical uplink shared channel Msg3 PUSCH according to the optimal beam, and/or send automatic request retransmission confirmation HARQ-ACK feedback for message 4 physical downlink shared channel Msg4 PDSCH.
The device according to claim 17, characterized in that the processor is configured to determine the optimal beam according to the target information when the target information is the beam indication information carried by the first reserved bit in the RAR, specifically including: :

According to the corresponding relationship between the state value of the first reserved bit and the candidate beam index, the optimal beam is determined The beam index of the beam;

Determine the optimal beam according to the beam index of the optimal beam;

Wherein, the first reserved bit is a reserved bit in the RAR and/or a reserved bit included in the RAR uplink grant UL grant.
The device according to claim 17, characterized in that the processor is configured to determine the optimal beam according to the target information when the target information is beam indication information carried by a new field in the RAR, specifically including:

According to the beam indication information carried in the new field, determine the beam index of the optimal beam through the Bitmap bitmap; or,

According to the beam indication information carried in the new field, determine the beam index of the optimal beam through indexing;

The optimal beam is determined according to the beam index of the optimal beam.
The device according to claim 19, characterized in that the new field includes N bits, N is an integer greater than 1, the N is predefined through a protocol, or the N is configured through high-level signaling;

Wherein, the N is a fixed value; or,

The N is a non-fixed value.
The device according to claim 20, characterized in that the processor is configured to determine the beam index of the optimal beam according to the beam indication information carried in the newly added field through a Bitmap bitmap, specifically including:

If the status value of any bit among the N bits included in the new field is the first preset value, then the beam index corresponding to the bit is the beam index of the optimal beam;

Wherein, the number of bits whose status value is the first preset value is greater than 1 or equal to 1, and the beam index corresponding to one bit corresponds to an optimal beam index.
The device according to claim 21, characterized in that the processor is configured to send message 3 physical uplink shared channel Msg3 PUSCH according to the optimal beam when the number of bits with a status value of the first preset value is greater than 1. , and/or when sending automatic request retransmission confirmation HARQ-ACK feedback for the message 4 physical downlink shared channel Msg4PDSCH, specifically including:

Select a target optimal beam from a plurality of the optimal beams, where the target optimal beam is any optimal beam among a plurality of the optimal beams;

Send message 3 physical uplink shared channel Msg3 PUSCH according to the target optimal beam, and/or send automatic request retransmission confirmation HARQ-ACK feedback for message 4 physical downlink shared channel Msg4 PDSCH.
The device according to claim 22, characterized in that the processor is configured to determine the beam index of the optimal beam according to the beam indication information carried in the newly added field by means of an index, specifically including:

Determine the beam index of the optimal beam according to the corresponding relationship between the status value of the newly added field and the candidate beam index;

The N bits included in the new field constitute 2 N status values, and one status value corresponds to one candidate beam index.
The device according to any one of claims 18-23, wherein the beam index of the optimal beam is a synchronization signal block SSB index used for physical random access channel PRACH transmission, wherein the optimal beam The beam is the beam used to send the corresponding PRACH on the random access channel transmission opportunity RO associated with the SSB index; or,

The beam index of the optimal beam is the RO index used for PRACH transmission; wherein the optimal beam is the beam used to transmit the corresponding PRACH on the target RO corresponding to the RO index.
A beam indicating device, characterized in that the device is used in network side equipment, and the device includes: a memory, a transceiver, and a processor:

Memory, used to store computer programs; transceiver, used to send and receive data under the control of the processor; processor, used to read the computer program in the memory and perform the following operations:

Determine target information; wherein the target information includes beam indication information carried by the first reserved bit in the random response access RAR; or, the target information includes beam indication information carried by a new field in the random response access RAR ;The beam indication information is used to indicate the optimal beam of the terminal;

Send target information to the terminal.
The device according to claim 25, characterized in that the processor is configured to determine the target information when the target information is the beam indication information carried by the first reserved bit in the RAR, specifically including:

Generate beam indication information according to the corresponding relationship between the status value of the first reserved bit and the candidate beam index; wherein the first reserved bit is a reserved bit in the RAR and/or a reserved bit included in the RAR uplink grant UL grant. leave bits;

The beam indication information is carried by the first reserved bit, and the message carrying the beam indication information by the first reserved bit is used as the target information.
The device according to claim 25, characterized in that the processor is configured to determine the target information when the target information is the beam indication information carried by a new field in the RAR, specifically including:

Indicate the beam index of the optimal beam in the form of Bitmap bitmap; or indicate the beam index of the optimal beam in the form of index;

Generate the beam indication information according to the beam index of the optimal beam;

The beam indication information is carried through the new field, and the message carrying the beam indication information in the new field is used as the target information.
The device according to claim 27, characterized in that the new field includes N bits, N is an integer greater than 1, the N is predefined through a protocol, or the N is configured through high-level signaling;

Wherein, the N is a fixed value; or,

The N is a non-fixed value.
The device according to claim 28, characterized in that when the processor is configured to indicate the beam index of the optimal beam through a Bitmap bitmap, it specifically includes:

When the status value of any bit among the N bits included in the new field indicates that the status value is the first preset value, the beam index corresponding to the bit is the beam index of the optimal beam;

Wherein, the number of bits whose status value is the first preset value is greater than 1 or equal to 1, and the beam index corresponding to one bit corresponds to an optimal beam index.
The device according to claim 29, characterized in that when the number of bits whose status value is the first preset value is greater than 1, the beam indication information is used to instruct the terminal to select from a plurality of the optimal beams. Target optimal beam; wherein the target optimal beam is any optimal beam among a plurality of the optimal beams.
The device according to claim 28, characterized in that when the processor is configured to indicate the beam index of the optimal beam through an index, it specifically includes:

Through the corresponding relationship between the state value of the new field and the candidate beam index, the beam index of the optimal beam is indicated; wherein, the N bits included in the new field constitute 2 N state values, and one state value corresponds to one candidate. Beam index.
The device according to any one of claims 26-31, wherein the beam index of the optimal beam is a synchronization signal block SSB index used for physical random access channel PRACH transmission, wherein the optimal beam The beam is the beam used to send the corresponding PRACH on the random access channel transmission opportunity RO associated with the SSB index; or,

The beam index of the optimal beam is the RO index used for PRACH transmission; wherein the optimal beam is the beam used to transmit the corresponding PRACH on the target RO corresponding to the RO index.
A beam indicating device, characterized in that the device is used in a terminal, and the device includes:

A receiving unit configured to receive target information sent by the network side device; wherein the target information includes beam indication information carried by the first reserved bit in the random response access RAR; or the target information includes the random response access RAR The beam indication information carried by the new field in;

A first processing unit configured to determine the optimal beam according to the target information;

The second processing unit is configured to send the message 3 physical uplink shared channel Msg3 PUSCH according to the optimal beam, and/or send the automatic request retransmission confirmation HARQ-ACK feedback for the message 4 physical downlink shared channel Msg4 PDSCH.
The device according to claim 33, characterized in that the first processing unit is specifically used for:

When the target information is the beam indication information carried by the first reserved bit in the RAR, determine the beam index of the optimal beam according to the corresponding relationship between the status value of the first reserved bit and the candidate beam index;

Determine the optimal beam according to the beam index of the optimal beam;

Wherein, the first reserved bit is a reserved bit in the RAR and/or a reserved bit included in the RAR uplink grant UL grant.
The device according to claim 33, characterized in that the first processing unit is specifically used for:

When the target information is the beam indication information carried by the new field in the RAR, the beam index of the optimal beam is determined in the form of a Bitmap bitmap according to the beam indication information carried by the new field; or,

According to the beam indication information carried in the new field, determine the beam index of the optimal beam through indexing;

The optimal beam is determined according to the beam index of the optimal beam.
The device according to claim 35, characterized in that the new field includes N bits, N is an integer greater than 1, the N is predefined through a protocol, or the N is configured through high-level signaling;

Wherein, the N is a fixed value; or,

The N is a non-fixed value.
The device according to claim 36, characterized in that the first processing unit is specifically used for:

When the status value of any bit among the N bits included in the new field is the first preset value, the beam index corresponding to the bit is the beam index of the optimal beam;

Wherein, the number of bits whose status value is the first preset value is greater than 1 or equal to 1, and the beam index corresponding to one bit corresponds to an optimal beam index.
The device according to claim 37, characterized in that the second processing unit is specifically used for:

When the number of bits whose status value is the first preset value is greater than 1, a target optimal beam is selected from a plurality of the optimal beams, and the target optimal beam is any one of the plurality of optimal beams. optimal beam;

Send message 3 physical uplink shared channel Msg3 PUSCH according to the target optimal beam, and/or send automatic request retransmission confirmation HARQ-ACK feedback for message 4 physical downlink shared channel Msg4 PDSCH.
The device according to claim 36, characterized in that the first processing unit is also specifically used for:

Determine the beam index of the optimal beam according to the corresponding relationship between the status value of the newly added field and the candidate beam index;

The N bits included in the new field constitute 2 N status values, and one status value corresponds to one candidate beam index.
The device according to any one of claims 34 to 39, characterized in that the beam index of the optimal beam is a synchronization signal block SSB index used for physical random access channel PRACH transmission, wherein the optimal beam The beam is the beam used to send the corresponding PRACH on the random access channel transmission opportunity RO associated with the SSB index; or,

The beam index of the optimal beam is the RO index used for PRACH transmission; wherein, the The optimal beam is the beam used to transmit the corresponding PRACH on the target RO corresponding to the RO index.
A beam indicating device, characterized in that the device is used in network side equipment, and the device includes:

A processing unit configured to determine target information; wherein the target information includes beam indication information carried by the first reserved bit in the random response access RAR; or the target information includes a new field in the random response access RAR carried beam indication information; the beam indication information is used to indicate the optimal beam of the terminal;

The sending unit is used to send target information to the terminal.
The device according to claim 41, characterized in that the processing unit is specifically used for:

When the target information is the beam indication information carried by the first reserved bit in the RAR, the beam indication information is generated according to the corresponding relationship between the status value of the first reserved bit and the candidate beam index; wherein, the first reserved bit The bits are reserved bits in the RAR and/or reserved bits contained in the RAR uplink authorization UL grant;

The beam indication information is carried by the first reserved bit, and the message carrying the beam indication information by the first reserved bit is used as the target information.
The device according to claim 41, characterized in that the processing unit is also specifically used for:

When the target information is the beam indication information carried by a new field in the RAR, the beam index of the optimal beam is indicated in the form of a Bitmap bitmap; or the beam index of the optimal beam is indicated in the form of an index;

Generate the beam indication information according to the beam index of the optimal beam;

The beam indication information is carried through the new field, and the message carrying the beam indication information in the new field is used as the target information.
The device according to claim 43, characterized in that the new field includes N bits, N is an integer greater than 1, the N is predefined through a protocol, or the N is configured through high-level signaling;

Wherein, the N is a fixed value; or,

The N is a non-fixed value.
The device according to claim 44, characterized in that the processing unit is specifically used for:

When the status value of any bit among the N bits included in the new field indicates that the status value is the first preset value, the beam index corresponding to the bit is the beam index of the optimal beam;

Wherein, the number of bits whose status value is the first preset value is greater than 1 or equal to 1, and the beam index corresponding to one bit corresponds to an optimal beam index.
The device according to claim 45, characterized in that when the number of bits whose status value is the first preset value is greater than 1, the beam indication information is used to instruct the terminal to select from a plurality of the optimal beams. Target optimal beam; wherein the target optimal beam is any optimal beam among a plurality of the optimal beams.
The device according to claim 44, characterized in that the processing unit is also specifically used for:

Through the corresponding relationship between the state value of the new field and the candidate beam index, the beam index of the optimal beam is indicated; wherein, the N bits included in the new field constitute 2 N state values, and one state value corresponds to one candidate. Beam index.
The device according to any one of claims 42-47, wherein the beam index of the optimal beam is a synchronization signal block SSB index used for physical random access channel PRACH transmission, wherein the optimal beam The beam is the beam used to send the corresponding PRACH on the random access channel transmission opportunity RO associated with the SSB index; or,

The beam index of the optimal beam is the RO index used for PRACH transmission; wherein the optimal beam is the beam used to transmit the corresponding PRACH on the target RO corresponding to the RO index.
A processor-readable storage medium, characterized in that the processor-readable storage medium stores a computer program, and the computer program is used to cause the processor to execute the method according to any one of claims 1 to 16 .