CN116437491A

CN116437491A - Method, device, chip and electronic equipment for acquiring path loss reference signal

Info

Publication number: CN116437491A
Application number: CN202111664045.5A
Authority: CN
Inventors: 张萌; 黄曲芳; 周欢
Original assignee: Spreadtrum Communications Shanghai Co Ltd
Current assignee: Spreadtrum Communications Shanghai Co Ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2023-07-14
Also published as: WO2023125243A1

Abstract

The embodiment of the application provides a method, a device, a chip and electronic equipment for acquiring a path loss reference signal. The method is applied to the terminal and comprises the following steps: acquiring a first reference signal; and determining a first path loss reference signal according to the first reference signal, wherein the first path loss reference signal is a path loss reference signal which needs to be referred by Msg3 in the current random access process. According to the method for acquiring the PL-RS, the application scene of the random access process can be expanded.

Description

Method, device, chip and electronic equipment for acquiring path loss reference signal

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to a method, an apparatus, a chip, and an electronic device for obtaining a path loss reference signal.

Background

The Path Loss (PL), or propagation loss, refers to the loss generated by the propagation of radio waves in space, and is caused by the radiation spread of the transmission power and the propagation characteristics of the channel, reflecting the variation of the power average of the received signal in a macroscopic range. In the field of communications, path loss for signal transmission is typically calculated using a path loss reference signal (pathloss reference signal, PL-RS).

The contention-based random access procedure is initiated by the terminal randomly selecting access resources according to random access parameters broadcast in the cell system message. When the terminal allows to initiate connection establishment, firstly, uplink synchronization and uplink channel resources are acquired through random access. The terminal obtains the physical layer resource for random access and the allocated preamble sequence set from the system broadcast information, then generates the random access preamble sequence, and initiates the random access based on competition on the configured physical layer random access resource. The contention-based random access procedure is divided into the following 4 steps.

Step 1, the terminal randomly selects a preamble sequence to transmit on a physical random access channel (Physical Random Access Channel, PRACH).

Step 2, after detecting the preamble sequence, the base station sends a random access response (Random Access Response, RAR) to the terminal, wherein the RAR may include the following information: sequence numbers of received preamble sequences, time adjustment amounts, temporary scheduling identities (ID (C-RNTI)) allocated to terminals, and the like.

And step 3, the terminal sends uplink information on the allocated uplink resources according to the indication of the base station, wherein the information is different according to different trigger reasons of random access.

And 4, the base station receives the uplink message of the terminal and returns a competition resolving message to the terminal which is accessed successfully, wherein the message directly replicates the message sent by the terminal which is accessed successfully in the step 3.

There are 4 signaling messages 1-Message4 (Msg 1-Msg 4) corresponding to the 4 steps described above. Of the 4 signaling, msg3 is sent by the terminal. The terminal needs to refer to the PL-RS transmitted for the current Msg3 before transmitting Msg3 to determine the path loss of transmitting Msg3, thereby determining the transmission power of transmitting Msg3. Therefore, a method of acquiring PL-RS is needed to support the terminal to transmit Msg3.

Disclosure of Invention

Aiming at the problem of how to acquire the PL-RS sent by the Msg3 in the prior art, the application provides a method, a device, a chip and electronic equipment for acquiring a path loss reference signal, and also provides a computer readable storage medium.

The embodiment of the application adopts the following technical scheme:

in a first aspect, the present application provides a method for obtaining a pathloss reference signal, where the method is applied to a terminal, and includes:

acquiring a first reference signal;

and determining a first path loss reference signal according to the first reference signal, wherein the first path loss reference signal is a path loss reference signal which needs to be referred by Msg3 in the current random access process.

In an implementation manner of the first aspect, the Msg1 is sent multiple times in the current random access procedure, and the Msg3 is sent once in the current random access procedure.

In an implementation manner of the first aspect, the acquiring the first reference signal includes:

selecting a reference signal corresponding to the PRACH with earliest time domain transmission of PRACH resources used by the Msg1 to be transmitted for multiple times as the first reference signal;

or alternatively, the process may be performed,

and selecting a reference signal corresponding to the PRACH with the latest PRACH resource time domain transmission used by the Msg1 to be transmitted for multiple times as the first reference signal.

and selecting the reference signal with the highest reference signal receiving power from the reference signals corresponding to the PRACH used for sending the Msg1 for multiple times as the first reference signal.

selecting a reference signal with the minimum reference signal index number from reference signals corresponding to PRACH used for sending the Msg1 for multiple times as the first reference signal;

or alternatively, the process may be performed,

and selecting the reference signal with the largest reference signal index number from the reference signals corresponding to the PRACH used for sending the Msg1 for multiple times as the first reference signal.

acquiring indication information according to the Msg2 in the current random access process;

confirming the Msg1 pointed by the indication information from the multiple transmissions of the Msg1 according to a first relation, wherein the first relation is a corresponding relation between the indication information and the transmission frequency number of the Msg 1;

and selecting the PRACH used by the Msg1 pointed by the indication information for sending, and taking the reference signal corresponding to the PRACH as the first reference signal.

In an implementation manner of the first aspect, the indication information is one or more rows in a modulation and coding policy table pointed by the Msg2, and the first relationship is a correspondence between one or more rows in the modulation and coding policy table and a transmission number.

In one implementation manner of the first aspect, the method further includes:

and receiving the first relation configured by the base station.

confirming the sending moment of Msg2 in the current random access process;

acquiring a first number based on the sending moment, wherein a random access response window for sending the Msg2 comprises a plurality of sub-windows, the number of the sub-windows is consistent with the number of times of sending the Msg1 for a plurality of times, the first number is the number of the first sub-window in the random access response window, and the first sub-window corresponds to the sending moment;

And confirming PRACH used for transmitting the Msg1 with the transmission frequency number of the first number from the multiple transmissions of the Msg1, and taking a reference signal corresponding to the PRACH as the first reference signal.

and selecting a reference signal corresponding to a wave beam used for transmitting the Msg2 in the current random access process as the first reference signal.

In an implementation manner of the first aspect, the Msg1 is sent multiple times during the current random access procedure, and the Msg3 is sent multiple times during the current random access procedure.

In one implementation of the first aspect:

the number of times of sending the Msg1 in the current random access process is consistent with the number of times of sending the Msg 3;

the first reference signal is a reference signal corresponding to a PRACH used for transmitting the Msg1 for the first time;

the first path loss reference signal is a path loss reference signal which needs to be referred by the Msg3 when the Msg3 is transmitted for the first time;

the method further comprises the steps of:

acquiring a second reference signal, wherein the second reference signal is a reference signal corresponding to the PRACH used for transmitting the Msg1 for the second time;

and determining a second path loss reference signal according to the second reference signal, wherein the second path loss reference signal is a path loss reference signal which needs to be referred to by the Msg3 for the second time.

In one implementation manner of the first aspect, the method further includes:

acquiring a third reference signal, wherein the third reference signal is a reference signal corresponding to the PRACH used for transmitting the Msg1 for the third time;

and determining a third path loss reference signal according to the third reference signal, wherein the third path loss reference signal is a path loss reference signal which needs to be referred to when the Msg3 is transmitted for the third time.

In one implementation of the first aspect:

the number of times of sending the Msg1 in the current random access process is smaller than the number of times of sending the Msg 3;

the first path loss reference signal is a path loss reference signal which needs to be referred to when the Msg3 is transmitted each time in a first transmission group, wherein the Msg3 is transmitted for multiple times and comprises a plurality of transmission groups, each transmission group comprises one or more Msg3 transmissions, and the number of the transmission groups is consistent with the number of times of transmitting the Msg 1;

the method further comprises the steps of:

And determining a second path loss reference signal according to the second reference signal, wherein the second path loss reference signal is a path loss reference signal which needs to be referred to by the Msg3 in each transmission of the second transmission group.

In one implementation manner of the first aspect, the method further includes:

and determining a third path loss reference signal according to the third reference signal, wherein the third path loss reference signal is a path loss reference signal which needs to be referred to when the Msg3 is transmitted each time in a third transmission group.

In one implementation of the first aspect:

the first path loss reference signal is a path loss reference signal to be referred by the Msg3 transmitted for the first time in each transmission group, wherein the Msg3 is transmitted for multiple times and comprises a plurality of transmission groups, the transmission times of the Msg3 contained in the last transmission group are consistent or inconsistent with the transmission times of the Msg1, and the transmission times of the Msg3 contained in other transmission groups except the last transmission group are consistent with the transmission times of the Msg 1;

The method further comprises the steps of:

and determining a second path loss reference signal according to the second reference signal, wherein the second path loss reference signal is a path loss reference signal which needs to be referred to when the Msg3 is transmitted for the second time in each transmission group, or the second path loss reference signal is a path loss reference signal which needs to be referred to when the Msg3 is transmitted for the second time in other transmission groups.

In one implementation manner of the first aspect, the method further includes:

and determining a third path loss reference signal according to the third reference signal, wherein the third path loss reference signal is a path loss reference signal which needs to be referred to when the Msg3 is transmitted for the third time in each transmitting group, or the third path loss reference signal is a path loss reference signal which needs to be referred to when the Msg3 is transmitted for the third time in other transmitting groups.

In a second aspect, the present application further provides a method for determining a transmission beam, where the method is applied to a terminal, where Msg1 is transmitted multiple times in a current random access procedure, and Msg3 is transmitted multiple times in the current random access procedure, and the method includes:

acquiring a first reference signal and a second reference signal, wherein the first reference signal and the second reference signal are reference signals corresponding to PRACH used for transmitting the Msg1 twice respectively;

and determining a first beam according to the first reference signal and determining a second beam according to the second reference signal, wherein the first beam and the second beam are beams which need to be used for transmitting the Msg3 twice respectively.

In one implementation of the second aspect:

the first reference signal and the second reference signal are reference signals corresponding to PRACH used for transmitting the Msg1 for the first time and the second time respectively;

the first beam and the second beam are beams that need to be used for transmitting the Msg3 for the first time and the second time, respectively.

In one implementation manner of the second aspect, the method further includes:

and determining a third beam according to the third reference signal, wherein the third beam is a beam which needs to be used for transmitting the Msg3 for the third time.

In one implementation of the second aspect:

the first beam is a beam which needs to be used for transmitting the Msg3 each time in a first transmission group, wherein the Msg3 is transmitted for multiple times and comprises a plurality of transmission groups, each transmission group comprises one or more times of Msg3 transmission, and the number of the transmission groups is consistent with the number of times of transmitting the Msg 1;

the second beam is a beam that needs to be used for transmitting the Msg3 each time in the second transmission group.

In one implementation manner of the second aspect, the method further includes:

And determining a third beam according to the third reference signal, wherein the third beam is a beam which needs to be used for transmitting the Msg3 each time in a third transmission group.

In one implementation of the second aspect:

the first beam is a beam to be used for transmitting the Msg3 for the first time in each transmission group, wherein the Msg3 is transmitted for multiple times and comprises a plurality of transmission groups, the transmission times of the Msg3 contained in the last transmission group are consistent or inconsistent with the transmission times of the Msg1, and the transmission times of the Msg3 contained in other transmission groups except the last transmission group are consistent with the transmission times of the Msg 1;

the second beam is a beam that needs to be used for transmitting the Msg3 for the second time in each of the transmission groups, or the second beam is a beam that needs to be used for transmitting the Msg3 for the second time in the other transmission groups.

In one implementation manner of the second aspect, the method further includes:

and determining a third beam according to the third reference signal, wherein the third beam is a beam which needs to be used for transmitting the Msg3 for the third time in each transmission group, or the third beam is a beam which needs to be used for transmitting the Msg3 for the third time in other transmission groups.

In a third aspect, the present application further provides an apparatus for obtaining a pathloss reference signal, where the apparatus is applied to a terminal, and the apparatus includes:

a reference signal acquisition module for acquiring a first reference signal;

and the path loss reference signal acquisition module is used for determining a first path loss reference signal according to the first reference signal, wherein the first path loss reference signal is the path loss reference signal which needs to be referred by Msg3 in the current random access process.

In a fourth aspect, the present application further provides an apparatus for determining a transmission beam, where the apparatus is applied to a terminal, and Msg1 is transmitted multiple times in a current random access procedure, and Msg3 is transmitted multiple times in the current random access procedure, and the apparatus includes:

A reference signal acquisition module, configured to acquire a first reference signal and a second reference signal, where the first reference signal and the second reference signal are reference signals corresponding to PRACH used for transmitting the Msg1 twice respectively;

and the beam confirmation module is used for determining a first beam according to the first reference signal and determining a second beam according to the second reference signal, wherein the first beam and the second beam are beams which need to be used for transmitting the Msg3 twice respectively.

In a fifth aspect, the present application provides an electronic chip, including:

a processor for executing computer program instructions stored on a memory, wherein the computer program instructions, when executed by the processor, trigger the electronic chip to perform the method steps of the first or second aspect.

In a sixth aspect, the present application provides an electronic device comprising a memory for storing computer program instructions, a processor for executing the computer program instructions and communication means, wherein the computer program instructions, when executed by the processor, trigger the electronic device to perform the method steps of the first or second aspect.

In a seventh aspect, the present application provides a computer readable storage medium having a computer program stored therein, which when run on a computer causes the computer to perform the method according to the first or second aspect.

In an eighth aspect, the present application provides a computer program product comprising a computer program which, when run on a computer, causes the computer to perform the method according to the second aspect of the first aspect.

According to the technical scheme provided by the embodiment of the application, at least the following technical effects can be achieved:

according to the method for acquiring the PL-RS, the PL-RS which needs to be referred when the Msg3 is transmitted can be determined according to the reference signal corresponding to the Msg1 in the application scene of transmitting the Msg1 for multiple times, so that the application scene of the random access process is expanded.

Drawings

FIG. 1 is a schematic diagram of a communication system for an application scenario;

fig. 2 is a signaling interaction diagram of a contention-based random access procedure;

FIG. 3 is a flow chart of a method for acquiring PL-RS according to an embodiment of the present application;

FIG. 4 is a block diagram showing an apparatus for acquiring PL-RS according to an embodiment of the present application;

Fig. 5 is a block diagram of an apparatus for determining a transmit beam according to an embodiment of the present application;

fig. 6 is a block diagram of an electronic device according to an embodiment of the present application.

Detailed Description

For the purposes, technical solutions and advantages of the present application, the technical solutions of the present application will be clearly and completely described below with reference to specific embodiments of the present application and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

The terminology used in the description section of the present application is for the purpose of describing particular embodiments of the present application only and is not intended to be limiting of the present application.

Fig. 1 is a schematic diagram of a communication system for an application scenario. Fig. 2 is a signaling interaction diagram of a contention-based random access procedure.

As shown in fig. 1, a terminal 110 needs to randomly access a network in which a base station 120 is located. A contention-based random access procedure between the terminal 110 and the base station 120 is shown in fig. 2.

S210, the terminal sends Msg1 on the PRACH.

S220, after detecting the Msg1, the base station sends Msg2 (RAR) to the terminal.

S230, the terminal determines that the current Msg3 sends the PL-RS to be referred to.

S231, the terminal sends Msg3 on the allocated uplink resource according to the PL-RS determined in S230 based on the indication of Msg 2.

S240, the base station receives the Msg3 and returns the Msg4 to the terminal which is accessed successfully.

For S230, one possible application scenario is to determine, according to the parameter configuration when the terminal transmits Msg1 in S210, that the current Msg3 transmits the PL-RS to be referred to. Specifically, the implementation of S230 may be implementation 1 described below.

Implementation 1

In S210, the terminal transmits Msg1 once on the PRACH. In implementation 1, reference signals corresponding to the PRACH that transmits Msg1 in S210 may be referred to, so as to determine that the current Msg3 transmits the PL-RS that needs to be referred to.

For example, the PL-RS is determined with reference to the synchronization signal associated with the PRACH and the physical broadcast channel block (Synchronization Signal and Physical Broadcast Channel block, SSB) in S210, where SSB is composed of three parts, namely, a primary synchronization signal (Primary Synchronization Signals, PSS), a secondary synchronization signal (Secondary Synchronization Signals, SSS), and a physical broadcast channel (Physical Broadcast Channel, PBCH); alternatively, the PL-RS is determined with reference to the channel state information reference signal (Channel State Information reference signal, CSI-RS) associated with the PRACH in S210.

In implementation 1, according to the PRACH transmitting Msg1 in S210, it is determined that the current Msg3 transmits the PL-RS to be referred to. That is, the PL-RS used for Msg3 is the downlink reference signal corresponding to PRACH of Msg1. One of the implementation preconditions is that in S210 the terminal transmits Msg1 once on the PRACH. That is, only one PRACH is used in S210, so that one PL-RS can be determined according to the downlink reference signal to which the PRACH is associated.

However, in some application scenarios, in S210, the transmission of Msg1 may be enhanced for coverage enhancement. Specifically, in S210, the Msg1 is enhanced by multiple transmissions. When the same beam is used for transmitting Msg1 multiple times in S210, the same PL-RS can be determined according to the PRACH used in S210, and therefore, if Msg1 is transmitted multiple times in S210 using the same beam, the PL-RS to be referred to for the current Msg3 transmission can be determined based on implementation 1.

However, in some application scenarios, in S210, the beam used when Msg1 is transmitted multiple times includes different beams (two or more different PRACH are used when Msg1 is transmitted multiple times). Wherein, msg1 sent each time may correspond to different downlink reference signals. At this time, it cannot be determined based on implementation 1 that the current Msg3 transmits the PL-RS that needs to be referred to.

Aiming at the situation that the beams adopted when Msg1 is sent for multiple times contain different beams, the embodiment of the application provides a method for acquiring the PL-RS. According to the method for acquiring the PL-RS, the PL-RS which needs to be referred when the Msg3 is transmitted can be determined according to the reference signal corresponding to the Msg1 in the application scene of transmitting the Msg1 for multiple times, so that the application scene of the random access process is expanded.

The method for configuring the Msg3 sending parameters can be applied to random access processes of various different communication protocols, and is not particularly limited. For example, the method for acquiring PL-RS of the present application may be applied to a random access procedure of long term evolution (Long Term Evolution, LTE), or the method for acquiring PL-RS of the present application may be applied to a random access procedure in a 5G application scenario, or a random intervention procedure in a future 6G communication system may all use the scheme of the present application.

Fig. 3 is a flowchart illustrating a method for acquiring PL-RS according to an embodiment of the present application. When the terminal 110 transmits Msg1 multiple times in one round of random access (transmits Msg1 multiple times in S210). Optionally, the beams used for transmitting the Msg1 multiple times at least include two different beams or the multiple times of transmitting the Msg1 corresponds to different PRACH or the multiple times of transmitting the Msg1 corresponds to different Preamble sequences or the multiple times of transmitting the Msg1 has different transmission beams. Wherein each Msg1 transmission may correspond to one PRACH. After the terminal 110 finishes transmitting Msg1 a plurality of times (after S210), the terminal 110 performs the following steps shown in fig. 3 to realize S230.

S310, acquiring a first reference signal;

s320, determining a first path loss reference signal according to the first reference signal, wherein the first path loss reference signal is PL-RS to which Msg3 needs to be referred in the current random access process. Implementation of S320 may refer to implementation 1.

Specifically, the implementation of S310 may be any one of the following implementations 2-6.

Implementation 2

In S310, a reference signal corresponding to the PRACH with the earliest PRACH resource time domain transmission in S210 is selected as the first reference signal. Alternatively, if there are multiple PRACH transmissions that are transmitted earliest at the same time, the first reference signal may be selected as the first reference signal that has the highest PRACH resource index number, or the first reference signal may be selected as the first reference signal that has the smallest PRACH resource index number, or the first reference signal that has the largest PRACH resource frequency domain resource index number, or the first reference signal that has the smallest PRACH resource frequency domain resource index number. The PRACH resource may be an RO (RACH occalation) resource. In addition, the PRACH resource frequency domain resource index number may be the lowest PRB (physical resource block ) index number in the PRACH resource, or the highest PRB index number in the PRACH resource, or any PRB index number in the PRACH resource, or the RO index number corresponding to the PRACH resource.

Or selecting the reference signal corresponding to the PRACH with the latest PRACH resource time domain transmission as the first reference signal. Alternatively, if there are multiple PRACH transmissions that are transmitted at the same time and are transmitted at the latest, the first reference signal may be selected as the highest PRACH resource index number, or the first reference signal may be selected as the smallest PRACH resource index number, or the first reference signal may be selected as the largest PRACH resource frequency domain resource index number, or the first reference signal may be selected as the smallest PRACH resource frequency domain resource index number. The PRACH resource may be an RO (RACH occalation) resource. In addition, the PRACH resource frequency domain resource index number may be the lowest PRB (physical resource block ) index number in the PRACH resource, or the highest PRB index number in the PRACH resource, or any PRB index number in the PRACH resource, or the RO index number corresponding to the PRACH resource.

Implementation 3

In S310, a reference signal with the highest reference signal received power (Reference Signal Receiving Power, RSRP) among the reference signals corresponding to the PRACH in S210 is selected as the first reference signal. Or, selecting the reference signal with the highest signal-to-interference-and-noise ratio (Signal to noise plus interference ratio, SINR) from the reference signals corresponding to the PRACH in S210 as the first reference signal.

Implementation 4

In S310, a reference signal with the smallest reference signal index number among the reference signals corresponding to the PRACH in S210 is selected as the first reference signal, or a reference signal with the largest reference signal index number is selected as the first reference signal.

Implementation 5

In S310, according to the indication information carried by the Msg2 (RAR) in S220, one PRACH is selected from the plurality of PRACHs used for transmitting the Msg1 multiple times in S210, and the reference signal corresponding to the PRACH is used as the first reference signal.

Specifically, in implementation 5, msg2 (RAR) may take a number of different ways to indicate the PRACH that needs to be selected. For example, in implementation 5, msg2 (RAR) may indicate PRACH that needs to be selected in the following manner 5.1 and manner 5.2.

Mode 5.1

Msg2 carries indication information. In S310, according to the first relation, from among the multiple transmissions of Msg1, one transmission of Msg1 to which the instruction information is directed is confirmed, the PRACH used for the transmission of Msg1 to which the instruction information is directed is selected, and the reference signal corresponding to the PRACH is used as the first reference signal. The first relationship is a correspondence relationship between the instruction information and the transmission number of Msg 1.

The first relationship may be predefined or configured by the base station 120 to the terminal 110.

For example, msg2 (RAR) may utilize several rows in a modulation and coding strategy table (Modulation and Coding Scheme table, MCStable) (e.g., as shown in table 1, table 1 is MCStable for a physical downlink shared channel (Physical Downlink Shared Channel, PDSCH)) to indicate the PRACH that needs to be selected.

TABLE 1

The first relationship, i.e., which rows in the MCStable are used to indicate the selection of PRACH. The indication information carried by the Msg2 is one or more rows in the modulation and coding strategy table pointed by the Msg2, and the first relation is the corresponding relation between one or more rows in the modulation and coding strategy table and the number of times of transmission.

The first relationship may be predefined for the terminal in a predefined manner, or may be configured for the terminal by the base station through higher layer signaling. In particular, the higher layer signaling used to configure the first relationship may be a master information block (master information block, MIB), a system information block (system information block, SIB), or other radio resource control (Radio Resource Control, RRC) signaling in system message signaling.

For example, if MCS0, MCS1, MCS3, and MCS4 in MCStable are configured, the first transmission, the second transmission, the third transmission, and the fourth transmission are repeated for multiple transmissions of Msg1, respectively. Then:

When Msg2 (RAR) in S220 points to MCS0 in MCStable, in S310, selecting a reference signal corresponding to the PRACH used when Msg1 is first transmitted in S210 as a first reference signal;

when Msg2 (RAR) in S220 points to MCS1 in MCStable, in S310, selecting a reference signal corresponding to the PRACH used when Msg1 is transmitted for the second time in S210 as a first reference signal;

when Msg2 (RAR) in S220 points to MCS3 in MCStable, in S310, selecting a reference signal corresponding to the PRACH used when Msg1 is transmitted for the third time in S210 as a first reference signal;

when Msg2 (RAR) in S220 points to MCS4 in MCStable, in S310, the reference signal corresponding to the PRACH used when Msg1 is transmitted the fourth time in S210 is selected as the first reference signal.

Mode 5.2

The PRACH that needs to be selected is indicated by the specific time of transmission of Msg2 in S220. That is, in S310, the terminal confirms the transmission time of the base station transmitting Msg2 in S220, and selects one PRACH corresponding to the transmission time of the base station transmitting Msg2 from the PRACH used in S210 according to the transmission time of the base station transmitting Msg 2.

Specifically, a random access response window for transmitting the Msg2 is cut into N sub-windows, wherein N is the number of times of transmitting the Msg1 for multiple times; confirming a first sub-window from the N sub-windows, wherein the first sub-window corresponds to the sending moment of the Msg2 sent by the base station; confirming a first number, wherein the first number is the number of a first sub-window; the PRACH with the transmission frequency number of the first number is selected from PRACH used for transmitting Msg1 for multiple times, and a reference signal corresponding to the PRACH is used as a first reference signal.

For example, if the number of repeated transmissions of Msg1 in S210 is N, a random access response window (RAR window) for transmitting Msg2 in S220 is cut into N parts. If the base station transmits Msg2 in the kth part of the RAR window, in S310, the reference signal corresponding to the PRACH used when the Msg1 is transmitted for the kth time in S210 is selected as the first reference signal.

Implementation 6

In S220, the reference signal corresponding to the beam used by the base station to transmit Msg2 is selected as the first reference signal. That is, in S310, the terminal acquires S220, and the base station transmits a reference signal corresponding to the beam used by Msg2, and uses the reference signal as the first reference signal.

Alternatively, in S220, the reference signal corresponding to the beam used by the UE to receive Msg2 is selected as the first reference signal.

Further, in some application scenarios, the enhancement may be performed by sending Msg3 multiple times, where it is required to determine the PL-RS to be referred to for each Msg3 sending separately.

Specifically, in an application scenario, in a link of transmitting the Msg1, the terminal transmits the Msg1 once; in the link of transmitting Msg3, the terminal needs to transmit Msg3 multiple times. In view of the above, in one solution, a PL-RS is determined according to a reference signal corresponding to the PRACH used when transmitting Msg1, and in a link for transmitting Msg3, the PL-RS is referred to by transmitting Msg3 multiple times.

In another application scene, in the link of sending the Msg1, the terminal sends the Msg1 for a plurality of times; in the link of transmitting Msg3, the terminal needs to transmit Msg3 multiple times. In view of the above, in one solution, a PL-RS is determined according to a reference signal corresponding to the PRACH used when Msg1 is transmitted multiple times (refer to implementation 2-6), and in the link of transmitting Msg3, the PL-RS is referred to for Msg3 transmitted multiple times.

In another solution, a plurality of PL-RSs are determined according to reference signals corresponding to PRACH used when Msg1 is transmitted multiple times, and in the link of transmitting Msg3, the plurality of PL-RSs are allocated to the transmission of Msg3 multiple times. In this solution, the allocation of multiple PL-RSs may be the following implementations 7-9.

Implementation 7

In an application scenario, the terminal 110 transmits Msg1 multiple times in S210 (the beam used for transmitting Msg1 includes at least two different beams); the terminal 110 needs to transmit Msg3 a plurality of times in S231, and the number of times of transmitting Msg3 a plurality of times in S231 is the same as that of transmitting Msg1 a plurality of times in S210. After the terminal 110 finishes transmitting Msg1 a plurality of times (after S210), the terminal 110 performs the steps shown in fig. 3. In S310, the first reference signal is a reference signal corresponding to the PRACH used for the first transmission of Msg1 in S210; in S320, the first PL-RS is the PL-RS to which Msg3 needs to be referred in S231 for the first time.

On the basis of the steps shown in fig. 3, the terminal 110 further performs:

acquiring a second reference signal, wherein the second reference signal is a reference signal corresponding to the PRACH used for transmitting Msg1 for the second time in S210;

and determining a second PL-RS according to the second reference signal, wherein the second PL-RS is the PL-RS to be referred to by the second transmission Msg3 in S231.

Further, when the number of times of transmitting Msg1 is greater than 2, the terminal 110 further performs:

acquiring a third reference signal, wherein the third reference signal is a reference signal corresponding to the PRACH used for transmitting Msg1 for the third time in S210;

and determining a third PL-RS according to the third reference signal, wherein the third PL-RS is the PL-RS which needs to be referred to for the third transmission of Msg3 in S231.

And so on until the reference signal is acquired and the corresponding PL-RS is acknowledged for each transmission of Msg 1.

Taking a specific application scenario as an example, let Msg1 repeat transmission times be M, and Msg3 repeat transmission times be M. Then, the PL-RS of the kth Msg3 transmission refers to the kth Msg1 transmission corresponding reference signal.

Implementation 8

In an application scenario, the terminal 110 transmits Msg1 multiple times in S210 (the beam used for transmitting Msg1 includes at least two different beams); the terminal 110 needs to transmit Msg3 a plurality of times in S231, and the number of times of transmitting Msg3 a plurality of times in S231 is larger than the number of times of transmitting Msg1 a plurality of times in S210. After the terminal 110 finishes transmitting Msg1 a plurality of times (after S210), the terminal 110 performs the steps shown in fig. 3. In S310, the first reference signal is a reference signal corresponding to the PRACH used for the first transmission of Msg1 in S210; in S320, the first PL-RS is a PL-RS to which reference is needed for each transmission of Msg3 in the first transmission group for transmitting Msg3, where multiple transmissions of Msg3 include multiple transmission groups, each transmission group includes one or multiple Msg3 transmissions, and the number of transmission groups is consistent with the number of multiple transmissions of Msg 1.

On the basis of the steps shown in fig. 3, the terminal 110 further performs:

and determining a second PL-RS according to the second reference signal, wherein the second PL-RS is the PL-RS which needs to be referred to when the Msg3 is transmitted each time in the second transmission group.

and determining a third PL-RS according to the third reference signal, wherein the third PL-RS is the PL-RS which needs to be referred to when the Msg3 is transmitted each time in the third transmission group.

Taking a specific application scenario as an example, assuming that the number of Msg1 repeated transmissions is M and the number of Msg3 repeated transmissions is N (N > M, N may be divided by M or the division is not limited), N Msg3 transmissions are divided into M groups, where the number of transmissions in each group is the same (or the number of transmissions in other groups is the same except the last group). In a first packet transmitted by Msg3, all Msg3 transmissions refer to the same PL-RS, and the PL-RS is determined by a reference signal corresponding to the first transmission Msg 1; in the second packet transmitted by Msg3, all Msg3 transmissions refer to the same PL-RS, and the PL-RS is determined by the reference signal corresponding to the Msg1 transmitted for the second time; and so on.

Implementation 9

In an application scenario, the terminal 110 transmits Msg1 multiple times in S210 (the beam used for transmitting Msg1 includes at least two different beams); the terminal 110 needs to transmit Msg3 a plurality of times in S231, and the number of times of transmitting Msg3 a plurality of times in S231 is larger than the number of times of transmitting Msg1 a plurality of times in S210. After the terminal 110 finishes transmitting Msg1 a plurality of times (after S210), the terminal 110 performs the steps shown in fig. 3. In S310, the first reference signal is a reference signal corresponding to the PRACH used for the first transmission of Msg1 in S210; in S320, the first PL-RS is a PL-RS to be referred to for transmitting Msg3 for the first time in each transmission group for transmitting Msg3, where multiple transmission Msg3 includes multiple transmission groups, the number of times of Msg3 transmission included in the last transmission group is identical or inconsistent with the number of times of Msg1 transmission, and the number of times of Msg3 transmission included in other transmission groups except the last transmission group is identical to the number of times of Msg1 transmission.

On the basis of the steps shown in fig. 3, the terminal 110 further performs:

and determining a second PL-RS according to the second reference signal, wherein the second PL-RS is the PL-RS which needs to be referred to for the second transmission of Msg3 in each transmission group, or the second PL-RS is the PL-RS which needs to be referred to for the second transmission of Msg3 in other transmission groups except the last transmission group.

and determining a third PL-RS according to the third reference signal, wherein the third PL-RS is a path loss reference signal which needs to be referred to when Msg3 is transmitted for the third time in each transmission group, or the third PL-RS is the PL-RS which needs to be referred to when Msg3 is transmitted for the third time in other transmission groups except the last transmission group.

Taking a specific application scenario as an example, assuming that the number of Msg1 repeated transmissions is M and the number of Msg3 repeated transmissions is N (N > M, N may be divided by M or the division is not limited), N Msg3 transmissions are divided into multiple groups, where each group includes M transmissions with the same number of times (or other groups except the last group include M transmissions). In any packet transmitted by Msg3, the first Msg3 of the packet transmits the PL-RS determined by referring to the reference signal corresponding to the first transmitted Msg 1; the second Msg3 of the packet transmits the PL-RS determined by referring to the reference signal corresponding to the second Msg 1; and so on.

Further, for multiple transmissions of Msg3, a method for determining a transmission beam is also provided. Specifically, in an application scenario, the terminal 110 sends Msg1 multiple times in S210 (the beam used for sending Msg1 includes at least two beams different from each other), and the terminal 110 needs to send Msg3 multiple times in S231, so that the beam direction of sending Msg3 each time in multiple sending Msg3 can be determined according to the reference signal corresponding to the PRACH used when sending Msg1 multiple times.

Specifically, after the terminal 110 finishes transmitting Msg1 a plurality of times (after S210), the terminal 110 performs the following steps.

Acquiring a first reference signal and a second reference signal, wherein the first reference signal and the second reference signal are reference signals corresponding to PRACH used for twice sending Msg1 in S210 respectively;

and determining a first beam according to the first reference signal and determining a second beam according to the second reference signal, wherein the first beam and the second beam are beams which need to be used for transmitting the Msg3 twice in S231 respectively.

Further, when Msg3 is transmitted more than 2 times, the terminal 110 further performs:

acquiring a third reference signal, wherein the first reference signal, the second reference signal and the third reference signal are reference signals corresponding to PRACH used for sending Msg1 for three times in S210 respectively;

and determining a third beam according to the third reference signal, wherein the first beam, the second beam and the third beam are beams needed to be used for sending the Msg3 for three times in S231 respectively.

And so on until a beam is provided for each transmission of Msg 3.

Further, a specific implementation of determining the transmit beam may be the following implementations 10-12.

Implementation 10

In an application scenario, the terminal 110 transmits Msg1 multiple times in S210 (the beam used for transmitting Msg1 includes at least two different beams); the terminal 110 needs to transmit Msg3 a plurality of times in S231, and the number of times of transmitting Msg3 a plurality of times in S231 is the same as that of transmitting Msg1 a plurality of times in S210. After the terminal 110 finishes transmitting Msg1 a plurality of times (after S210), the terminal 110 performs the following steps.

Acquiring a first reference signal and a second reference signal, wherein the first reference signal and the second reference signal are reference signals corresponding to PRACH used for transmitting the Msg1 for the first time and the second time in S210 respectively;

and determining a first beam according to the first reference signal and determining a second beam according to the second reference signal, wherein the first beam and the second beam are beams required to be used for transmitting the Msg3 for the first time and the second time in S231 respectively.

Further, when the number of times of transmitting Msg3 is greater than 2, the terminal 110 further performs:

and determining a third beam according to the third reference signal, wherein the third beam is a beam needed to be used for transmitting the Msg3 for the third time in S231.

And so on until a corresponding beam is provided for each transmission of Msg 3.

Taking a specific application scenario as an example, let Msg1 repeat transmission times be M, and Msg3 repeat transmission times be M. Then, the beam direction of the kth Msg3 transmission corresponds to the reference signal corresponding to the kth Msg1 transmission.

Implementation 11

In an application scenario, the terminal 110 transmits Msg1 multiple times in S210 (the beam used for transmitting Msg1 includes at least two different beams); the terminal 110 needs to transmit Msg3 a plurality of times in S231, and the number of times of transmitting Msg3 a plurality of times in S231 is larger than the number of times of transmitting Msg1 a plurality of times in S210. After the terminal 110 finishes transmitting Msg1 a plurality of times (after S210), the terminal 110 performs the following steps.

determining a first beam according to a first reference signal, wherein the first beam is a beam which needs to be used for transmitting the Msg3 each time in a first transmission group in S231, wherein the Msg3 is transmitted for multiple times in S231 and comprises a plurality of transmission groups, each transmission group comprises one or more Msg3 transmissions, and the number of the transmission groups is consistent with the number of times of transmitting the Msg 1;

And determining a second beam according to the second reference signal, wherein the second beam is a beam which needs to be used for each transmission of Msg3 in the second transmission group in S231.

and determining a third beam according to the third reference signal, wherein the third beam is a beam which needs to be used for each transmission of Msg3 in the third transmission group in S231.

Taking a specific application scenario as an example, assuming that the number of Msg1 repeated transmissions is M and the number of Msg3 repeated transmissions is N (N > M, N may be divided by M or the division is not limited), N Msg3 transmissions are divided into M groups, where the number of transmissions in each group is the same (or the number of transmissions in other groups is the same except the last group). In the first packet transmitted by the Msg3, the beam directions sent by all the Msg3 are consistent, and the beam directions correspond to the reference signals corresponding to the Msg1 sent for the first time; in the second packet transmitted by the Msg3, the beam directions sent by all the Msg3 are consistent, and the beam directions correspond to the reference signals corresponding to the Msg1 sent for the second time; and so on.

Implementation 12

determining a first beam according to a first reference signal, wherein the first beam is a beam which needs to be used for transmitting Msg3 for the first time in each transmission group in S231, wherein the Msg3 is transmitted for multiple times in S231, the transmission times of Msg3 contained in the last transmission group are consistent or inconsistent with the times of Msg1, and the transmission times of Msg3 contained in other transmission groups except the last transmission group are consistent with the times of Msg 1;

and determining a second beam according to the second reference signal, wherein the second beam is a beam which needs to be used for transmitting the Msg3 for the second time in each transmission group, or the second beam is a beam which needs to be used for transmitting the Msg3 for the second time in other transmission groups except the last transmission group.

and determining a third beam according to the third reference signal, wherein the third beam is a beam which needs to be used for transmitting the Msg3 for the third time in each transmission group, or the third beam is a beam which needs to be used for transmitting the Msg3 for the third time in other transmission groups except the last transmission group.

Taking a specific application scenario as an example, assuming that the number of Msg1 repeated transmissions is M and the number of Msg3 repeated transmissions is N (N > M, N may be divided by M or the division is not limited), N Msg3 transmissions are divided into multiple groups, where each group includes M transmissions with the same number of times (or other groups except the last group include M transmissions). In any packet transmitted by the Msg3, the beam direction of the first Msg3 of the packet corresponds to the reference signal corresponding to the first Msg 1; the beam direction of the second Msg3 transmission of the packet corresponds to the reference signal corresponding to the second Msg1 transmission; and so on.

Further, based on the method for acquiring the PL-RS of the present application, an embodiment of the present application further provides an apparatus for acquiring the PL-RS, where the apparatus is configured in a terminal, and each module in the apparatus may perform a corresponding action under the control of a processing module of the terminal.

Fig. 4 is a block diagram illustrating an apparatus for acquiring PL-RS according to an embodiment of the present application. As shown in fig. 4, the apparatus 400 for acquiring the PL-RS includes:

a reference signal acquisition module 410 for acquiring a first reference signal;

the pathloss reference signal obtaining module 420 is configured to determine a first pathloss reference signal according to a first reference signal, where the first pathloss reference signal is a pathloss reference signal that needs to be referred to by Msg3 in the current random access procedure.

Further, based on the method for determining a transmission beam in the present application, an embodiment of the present application further provides a device for determining a transmission beam, where the device for determining a transmission beam is configured in a base station, and each module in the device for determining a transmission beam may perform a corresponding action under the control of a processing module of the base station.

Fig. 5 is a block diagram of an apparatus for determining a transmit beam according to an embodiment of the present application. As shown in fig. 5, the apparatus 500 for determining a transmission beam includes:

A reference signal obtaining module 510, configured to obtain a first reference signal and a second reference signal, where the first reference signal and the second reference signal are reference signals corresponding to PRACH used for sending the Msg1 twice respectively;

and a beam confirmation module 520, configured to determine a first beam according to the first reference signal, and determine a second beam according to the second reference signal, where the first beam and the second beam are beams that need to be used for transmitting the Msg3 twice respectively.

In the description of the embodiments of the present application, for convenience of description, the apparatus is described as being divided into various modules by functions, where the division of each module is merely a division of a logic function, and the functions of each module may be implemented in one or more pieces of software and/or hardware when the embodiments of the present application are implemented.

In particular, the apparatus according to the embodiments of the present application may be fully or partially integrated into one physical entity or may be physically separated when actually implemented. And these modules may all be implemented in software in the form of calls by the processing element; or can be realized in hardware; it is also possible that part of the modules are implemented in the form of software called by the processing element and part of the modules are implemented in the form of hardware. For example, the determination module may be a separately established processing element or may be implemented integrated in a certain chip of the electronic device. The implementation of the other modules is similar. In addition, all or part of the modules can be integrated together or can be independently implemented. In implementation, each step of the above method or each module above may be implemented by an integrated logic circuit of hardware in a processor element or an instruction in a software form.

For example, the modules above may be one or more integrated circuits configured to implement the methods above, such as: one or more specific integrated circuits (Application Specific Integrated Circuit, ASIC), or one or more digital signal processors (Digital Singnal Processor, DSP), or one or more field programmable gate arrays (Field Programmable Gate Array, FPGA), etc. For another example, the modules may be integrated together and implemented in the form of a System-On-a-Chip (SOC).

Further, based on the method for acquiring PL-RS provided by the present application, an embodiment of the present application further provides an electronic apparatus (terminal), where the electronic apparatus includes a memory for storing computer program instructions, a processor for executing the program instructions, and a communication device, where the computer program instructions, when executed by the processor, trigger the electronic apparatus to execute the actions of acquiring PL-RS performed by the terminal in the method shown in the embodiments of the present application.

Further, based on the method for determining a transmit beam provided in the present application, an embodiment of the present application further provides an electronic device (terminal), where the electronic device includes a memory for storing computer program instructions, a processor for executing the program instructions, and a communication device, where when the computer program instructions are executed by the processor, the processor controls the electronic device to perform the action performed by the terminal in the method for determining a transmit beam in the embodiment of the present application.

Fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present application. The electronic device (terminal) of the embodiment of the present application may employ a component structure as shown in fig. 6. As shown in fig. 6, the electronic device 600 includes a processor 610, a memory 620, and a communication means 630.

The memory 620 may be used to store computer program instructions for performing the methods shown in the above embodiments, which when executed by the processor 610 controls the communication device 630 to perform the methods shown in the above embodiments.

The processor 610 of the electronic device 600 may be a device-on-chip SOC, which may include a central processing unit (Central Processing Unit, CPU) therein, and may further include other types of processors.

Specifically, the processor 610 may include, for example, a CPU, DSP, microcontroller, or digital signal processor, and may further include a GPU, an embedded Neural network processor (Neural-network Process Units, NPU), and an image signal processor (Image Signal Processing, ISP), and the processor 610 may further include a necessary hardware accelerator or logic processing hardware circuit, such as an ASIC, or one or more integrated circuits for controlling program execution of the present application, and the like. Further, the processor 610 may have a function of operating one or more software programs, which may be stored in a storage medium.

The memory 620 of the electronic device 600 may be a read-only memory (ROM), other type of static storage device that can store static information and instructions, a random access memory (random access memory, RAM) or other type of dynamic storage device that can store information and instructions, an electrically erasable programmable read-only memory (electrically erasable programmable read-only memory, EEPROM), a compact disc read-only memory (compact disc read-only memory) or other optical disk storage, optical disk storage (including compact discs, laser discs, optical discs, digital versatile discs, blu-ray discs, etc.), magnetic disk storage media, or other magnetic storage devices, or any computer readable medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.

In particular, in one embodiment of the present application, the processor 610 and the memory 620 may be combined into one processing device, more commonly as separate components. In particular implementations, the memory 620 may also be integrated into the processor 610 or may be separate from the processor 610.

The communication device 630 of the electronic device 600 is configured to implement wireless communication functions, and the communication device 630 includes one or more of an antenna 631, a communication module 632, a modem processor 633, and a baseband processor 634.

The antenna 631 is used to transmit and receive electromagnetic wave signals. Antenna 631 may include one or more separate antennas that may each be utilized to cover a single or multiple communication bands. Different antennas may also be multiplexed to improve the utilization of the antennas.

The communication module 632 may provide a solution for wireless communication, including 2G/3G/4G/5G, etc., applied on the electronic device 600. The communication module 632 may include at least one filter, switch, power amplifier, low noise amplifier (low noise amplifier, LNA), etc. The communication module 632 may receive electromagnetic waves from the antenna 631, filter, amplify, and the like the received electromagnetic waves, and transmit the electromagnetic waves to the modem processor 633 for demodulation. The mobile communication module 632 may amplify the signal modulated by the modem 633 and convert the signal into electromagnetic waves through the antenna 631. In some embodiments, at least some of the functional modules of the mobile communication module 632 may be disposed in the processor 610.

The modem processor 633 may include a modulator and demodulator. The modulator is used for modulating the low-frequency baseband signal to be transmitted into a medium-high frequency signal. The demodulator is used for demodulating the received electromagnetic wave signal into a low-frequency baseband signal. The demodulated low frequency baseband signal is then passed by the demodulator to baseband processor 734 for processing. The low frequency baseband signal is processed by a baseband processor 734 and passed to the processor 610. In some embodiments, modem processor 633 may be a stand-alone device. In other embodiments, modem processor 633 may be provided in the same device as mobile communication module 732 or other functional modules, independent of processor 610.

In some embodiments, the antenna 631 and the communication module 632 of the electronic device 600 are coupled such that the electronic device 600 can communicate with a network and other devices through wireless communication techniques. The wireless communication techniques may include the Global System for Mobile communications (global system for mobile communications, GSM), general packet radio service (general packet radio service, GPRS), code division multiple access (code division multiple access, CDMA), wideband code division multiple access (wideband code division multiple access, WCDMA), time division code division multiple access (time-division code division multiple access, TD-SCDMA), long term evolution (long term evolution, LTE), BT, GNSS, WLAN, NFC, FM, and/or IR techniques, among others. The GNSS may include a global satellite positioning system (global positioning system, GPS), a global navigation satellite system (global navigation satellite system, GLONASS), a beidou satellite navigation system (beidou navigation satellite system, BDS), a quasi zenith satellite system (quasi-zenith satellite system, QZSS) and/or a satellite based augmentation system (satellite based augmentation systems, SBAS).

Further, in a practical application scenario, the method flow of the embodiment shown in the present disclosure may be implemented by an electronic chip mounted on an electronic device. Therefore, based on the method proposed in the present application, an embodiment of the present application further proposes an electronic chip, which is installed in a base station, the electronic chip including a memory for storing computer program instructions and a processor for executing the computer program instructions, wherein the computer program instructions, when executed by the processor, trigger the electronic chip to perform the actions performed by the base station in the method shown in the above embodiment of the present application.

Further, based on the method provided in the present application, an embodiment of the present application further proposes an electronic chip, where the electronic chip is installed in a terminal, and the electronic chip includes a memory for storing computer program instructions and a processor for executing the computer program instructions, where when the computer program instructions are executed by the processor, the electronic chip is triggered to execute an action executed by the terminal in the method shown in the foregoing embodiment of the present application.

Further, the devices, apparatuses, modules illustrated in the embodiments of the present application may be implemented by a computer chip or entity, or by a product having a certain function.

It will be apparent to those skilled in the art that embodiments of the present application may be provided as a method, apparatus, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media having computer-usable program code embodied therein.

In several embodiments provided herein, any of the functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application.

Specifically, in an embodiment of the present application, there is further provided a computer readable storage medium, where a computer program is stored, when the computer program is executed on a computer, to cause the computer to perform the method provided in the embodiment of the present application.

An embodiment of the present application also provides a computer program product comprising a computer program which, when run on a computer, causes the computer to perform the method provided by the embodiments of the present application.

The description of embodiments herein is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (devices), and computer program products according to embodiments herein. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

In the embodiments of the present application, the term "at least one" refers to one or more, and the term "a plurality" refers to two or more. "and/or", describes an association relation of association objects, and indicates that there may be three kinds of relations, for example, a and/or B, and may indicate that a alone exists, a and B together, and B alone exists. Wherein A, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship. "at least one of the following" and the like means any combination of these items, including any combination of single or plural items. For example, at least one of a, b and c may represent: a, b, c, a and b, a and c, b and c or a and b and c, wherein a, b and c can be single or multiple.

In the present embodiments, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.

The application may be described in the general context of computer-executable instructions, such as program modules, being executed by a computer. Generally, program modules include routines, programs, objects, components, data structures, etc. that perform particular tasks or implement particular abstract data types. The application may also be practiced in distributed computing environments where tasks are performed by remote processing devices that are linked through a communications network. In a distributed computing environment, program modules may be located in both local and remote computer storage media including memory storage devices.

All embodiments in the application are described in a progressive manner, and identical and similar parts of all embodiments are mutually referred, so that each embodiment mainly describes differences from other embodiments. In particular, for the device embodiments, since they are substantially similar to the method embodiments, the description is relatively simple, and reference is made to the description of the method embodiments in part.

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

It will be clearly understood by those skilled in the art that, for convenience and brevity of description, specific working procedures of the apparatus, the apparatus and the units described above may refer to corresponding procedures in the foregoing method embodiments, which are not repeated herein.

The foregoing is merely a specific embodiment of the present application, and any person skilled in the art may easily think of changes or substitutions within the technical scope of the present application, and should be covered in the scope of the present application. The protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method for acquiring a pathloss reference signal, the method being applied to a terminal and comprising:

acquiring a first reference signal;

2. The method of claim 1, wherein Msg1 is transmitted multiple times during the current random access procedure and Msg3 is transmitted once during the current random access procedure.

3. The method of claim 2, wherein the acquiring the first reference signal comprises:

or alternatively, the process may be performed,

4. The method of claim 2, wherein the acquiring the first reference signal comprises:

5. The method of claim 2, wherein the acquiring the first reference signal comprises:

or alternatively, the process may be performed,

6. The method of claim 2, wherein the acquiring the first reference signal comprises:

7. The method of claim 6, wherein the indication information is one or more rows in a modulation and coding strategy table pointed to by the Msg2, and the first relationship is a correspondence between one or more rows in the modulation and coding strategy table and a transmission number.

8. The method of claim 6, wherein the method further comprises:

and receiving the first relation configured by the base station.

9. The method of claim 2, wherein the acquiring the first reference signal comprises:

confirming the sending moment of Msg2 in the current random access process;

10. The method of claim 2, wherein the acquiring the first reference signal comprises:

11. The method of claim 1, wherein Msg1 is transmitted multiple times during the current random access procedure and Msg3 is transmitted multiple times during the current random access procedure.

12. The method according to claim 11, wherein:

the method further comprises the steps of:

13. The method according to claim 12, wherein the method further comprises:

14. The method according to claim 11, wherein:

the method further comprises the steps of:

15. The method of claim 14, wherein the method further comprises:

16. The method according to claim 11, wherein:

The method further comprises the steps of:

17. The method of claim 16, wherein the method further comprises:

18. A method for determining a transmission beam, the method being applied to a terminal, wherein Msg1 is transmitted multiple times during a current random access procedure, and Msg3 is transmitted multiple times during the current random access procedure, the method comprising:

19. The method according to claim 18, wherein:

20. The method of claim 19, wherein the method further comprises:

21. The method according to claim 18, wherein:

22. The method of claim 21, wherein the method further comprises:

23. The method according to claim 18, wherein:

24. The method of claim 23, wherein the method further comprises:

25. An apparatus for acquiring a pathloss reference signal, the apparatus being applied to a terminal, the apparatus comprising:

a reference signal acquisition module for acquiring a first reference signal;

26. An apparatus for determining a transmission beam, wherein the apparatus is applied to a terminal, and wherein Msg1 is transmitted multiple times during a current random access procedure, and wherein Msg3 is transmitted multiple times during the current random access procedure, the apparatus comprising:

27. An electronic chip, comprising:

a processor for executing computer program instructions stored on a memory, wherein the computer program instructions, when executed by the processor, trigger the electronic chip to perform the method of any one of claims 1-17.

28. An electronic chip, comprising:

a processor for executing computer program instructions stored on a memory, wherein the computer program instructions, when executed by the processor, trigger the electronic chip to perform the method of any of claims 18-24.

29. An electronic device comprising a memory for storing computer program instructions, a processor for executing the computer program instructions, and communication means, wherein the computer program instructions, when executed by the processor, trigger the electronic device to perform the method of any of claims 1-17.

30. An electronic device comprising a memory for storing computer program instructions, a processor for executing the computer program instructions, and communication means, wherein the computer program instructions, when executed by the processor, trigger the electronic device to perform the method of any of claims 18-24.

31. A computer readable storage medium, characterized in that the computer readable storage medium has stored therein a computer program which, when run on a computer, causes the computer to perform the method according to any of claims 1-24.

32. A computer program product, characterized in that the computer program product comprises a computer program which, when run on a computer, causes the computer to perform the method according to any one of claims 1-24.