CN114615709A

CN114615709A - Configuration method and device of random access channel, electronic equipment and storage medium

Info

Publication number: CN114615709A
Application number: CN202011449002.0A
Authority: CN
Inventors: 毛欢欢; 于泳; 魏浩; 李萍
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2020-12-09
Filing date: 2020-12-09
Publication date: 2022-06-10
Also published as: WO2022121553A1

Abstract

The application relates to the field of communication, and provides a configuration method and device of a random access channel, electronic equipment and a storage medium. The configuration method of the random access channel comprises the following steps: receiving a radio resource management (RRC) message, wherein the RRC message carries association information between an SSB and a random access TYPE RA-TYPE, and the RA-TYPE comprises a 2-step random access RA and a 4-step RA; determining an SSB to be configured; determining the RA-TYPE to be configured according to the association information between the SSB and the RA-TYPE to be configured; and completing the configuration of a random access channel according to the SSB to be configured and the RA-TYPE to be configured. The method is applied to the random access CBRA process based on competition, and achieves the purposes of configuring a random access channel based on the wave beam, improving the access success rate of the system and reducing the time delay.

Description

Configuration method and device of random access channel, electronic equipment and storage medium

Technical Field

The embodiment of the application relates to the field of communication, and in particular relates to a method and an apparatus for configuring a random access channel, an electronic device, and a storage medium.

Background

2-step Random access (2-step RA) is a new access method introduced by the R16 protocol specification, and reduces the original 4-step RA to 2-step RA, which significantly reduces the delay, but not all Random access scenarios can use 2-step RACH. Therefore, the corresponding RACH configuration is performed according to the need of selecting whether to use the 2-step RA or the 4-step RA according to different situations. The configuration method of random channel access mainly adopted at present is as follows: whether to use the 2-step RACH or the 4-step RACH is performed first according to a Reference Signal Receiving Power (RSRP) threshold, and then selection of the synchronization Signal and the PBCH block SSB is performed.

However, for far-field ue selecting 2-step RA, even if all reference signal received power threshold conditions can be met, buffer limitation caused by hardware failure may occur, such as not meeting the condition of Timing Advance (TA) or not meeting the demodulation performance of msgA Uplink Shared Channel (msgA-PUSCH), which may cause 2-step RA failure, and it is necessary to fall back to 4-step RA, reduce the access success rate of the system and increase the delay.

Disclosure of Invention

The embodiments of the present application mainly aim to provide a method, an apparatus, an electronic device, and a storage medium for configuring a random access channel, which are capable of meeting a cache limitation caused by hardware, so that the random access channel can be configured based on a beam, an access success rate of a system is improved, and a time delay is reduced.

In order to achieve the above object, an embodiment of the present application provides a method for configuring a random access channel, where the method includes: receiving a radio resource management (RRC) message, wherein the RRC message carries association information of an SSB and a random access TYPE RA-TYPE, and the RA-TYPE comprises a 2-step random access RA and a 4-step RA; determining an SSB to be configured; determining the RA-TYPE to be configured according to the association information between the SSB and the RA-TYPE to be configured; and completing the configuration of the random access channel according to the SSB to be configured and the RA-TYPE to be configured.

The embodiment of the present invention further provides a device for configuring a random access channel, including: the system comprises a receiving module, a sending module and a receiving module, wherein the receiving module is used for receiving a radio resource management (RRC) message, the RRC message carries association information of an SSB and a random access TYPE RA-TYPE, and the RA-TYPE comprises a 2-step random access RA and a 4-step RA; the selection module is used for determining the SSB to be configured and determining the RA-TYPE to be configured according to the association information between the SSB to be configured and the RA-TYPE; and the configuration module is used for completing the configuration of the random access channel according to the SSB to be configured and the RA-TYPE to be configured, which are determined by the selection module.

An embodiment of the present invention also provides an electronic device, including:

at least one processor; and the number of the first and second groups,

a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,

the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the above-described method of configuring a random access channel.

Embodiments of the present invention also provide a computer-readable storage medium, which stores a computer program, and when the computer program is executed by a processor, the computer program implements the above-mentioned method for configuring a random access channel.

Compared with the prior art, the embodiment of the invention has the advantages that the received RRC message can carry the association information of the SSB and the random access TYPE RA-TYPE, so that after the SSB to be configured is determined, the RA-TYPE to be configured is obtained according to the association information between the SSB to be configured and the RA-TYPE, and then the configuration of the random access channel is completed according to the SSB to be configured and the RA-TYPE to be configured. Because the association information of the SSBs and the RA-TYPE can directly determine whether the RA-TYPE to be configured corresponding to each SSB is a 2-step RA or a 4-step RA, the SSBs that cannot satisfy the hardware restriction condition can be directly defined as corresponding 4-step RAs, so that the cache restriction caused by hardware can be satisfied when the RA-TYPE to be configured is selected, and the RA-TYPE to be configured is selected based on the beam information SSB, thereby realizing selection of a random access channel based on a beam, avoiding the occurrence of a case where the RA falls back to the 4-step RA after the 2-step access failure and the 2-step access failure, improving the access success rate of the system, and avoiding the increase of time delay caused by the fall back.

Drawings

One or more embodiments are illustrated by the figures in the accompanying drawings, which correspond to and are not intended to limit the embodiments.

Fig. 1 is a flowchart of a method for configuring a random access channel according to a first embodiment of the present application;

fig. 2 is a schematic diagram illustrating a bitmap indication in a method for configuring a random access channel according to a first embodiment of the present application;

fig. 3 is a flowchart of step 102 in a method for configuring a random access channel according to a first embodiment of the present application;

fig. 4 is a flowchart of a method for configuring a random access channel according to a second embodiment of the present application;

fig. 5 is a flowchart of a method for configuring a random access channel according to a third embodiment of the present application;

fig. 6 is a flowchart of a method for configuring a random access channel according to a fourth embodiment of the present application;

fig. 7 is a schematic diagram of beam allocation in a method for configuring a random access channel according to a fifth embodiment of the present application;

fig. 8 is a schematic structural diagram of a configuration apparatus of a random access channel according to a sixth embodiment of the present application;

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

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present application more clear, the embodiments of the present application will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that numerous technical details are set forth in various embodiments of the present application in order to provide a better understanding of the present application. However, the technical solution claimed in the present application can be implemented without these technical details and various changes and modifications based on the following embodiments. The following embodiments are divided for convenience of description, and should not constitute any limitation to the specific implementation of the present application, and the embodiments may be mutually incorporated and referred to without contradiction.

A first embodiment of the present application relates to a method for configuring a random access channel, where an execution subject is a user equipment, and as shown in fig. 1, the method specifically includes:

step 101, receiving a radio resource management RRC message, where the RRC message carries association information between an SSB and a random access TYPE RA-TYPE, and the RA-TYPE includes a 2-step random access RA and a 4-step RA.

Specifically, in the present embodiment, SSB is a synchronization signal and a physical layer broadcast channel block, and the association information between SSB and random access TYPE RA-TYPE may be represented in the form of a bitmap or a mask. Of course, the above is only a specific example, and the representation form of the association information between the SSB and the random access TYPE RA-TYPE may also include other forms in the actual using process, which is not described in detail here. And the RRC message carrying the association information between the SSB and the random access TYPE RA-TYPE can mainly select the RA-TYPE TYPE according to the service TYPE and the requirement of the user equipment or according to the beam width, for example, the remote-field user equipment needs to ensure the access success rate as much as possible, therefore, according to the 4-step RA, the situation that the RSRP condition is not met but the hardware limiting condition cannot be met can not occur, the specific SSB corresponding to the remote-field beam is set as the 4-step RA, and the access failure is avoided.

More specifically, when the association information between the SSB and the random access TYPE RA-TYPE is represented in the form of a bitmap, as shown in fig. 2, a bitmap name of the association information between the SSB and the random access TYPE RA-TYPE may be defined as rattypessbbittap, and a value of each bit of the rattypessbbittap directly indicates a second preset value of RA-TYPE on the SSB association, where the length of the rattypessbbittap is the number of SSBs used by the system, and when the value of one bit of the rattypessbbittap is 1, the RA-TYPE corresponding to the SSB is represented as 2-step RA, that is, a 2-step RACH beam is configured. When the association information between the SSB and the random access TYPE RA-TYPE is represented in the form of a bitmap, as shown in the following table, a second mask name of the association information between the SSB and the random access TYPE RA-TYPE may be defined as a rattypessbressmarkindex, one rattypessbressmarkindex corresponds to a preset association relationship, the association relationship is a mapping relationship between the SSB and the RA-TYPE, the length of the rattypessbressmarkindex may be 4 bits, and the SSBs indicated in the table content all adopt 2-step RA.

RATypeSSBResMaskIndex	SSB Resource
		0	all SSBs
1	every odd SSBs
		2	every even SSBs
3	the first half SSBs
		4	the last half SSBs
5	first 8 SSBs
		6	first 16 SSBs
7	last 8 SSBs
		8	reserved
9	reserved
		10	reserved
11	reserved
		12	reserved
13	reserved
		14	reserved
15	reserved

It should be noted that the maximum number of SSBs is 64, the bitmap needs to support 64 bits at most, and the mask needs to support 4 bits at most according to the above example, which has little influence on the RRC message carrying the synchronization signal and the association information between the physical layer broadcast channel block SSB and the random access TYPE RA-TYPE. Because the system needs to be disconnected in the process of the SSB reconfiguration, the SSB also needs to perform corresponding reconfiguration on the bitmap or mask of the association information between the SSB and the RA-TYPE carried in the RRC message when performing reconfiguration. Although the above are all cases where the RRC message carries the association information between the SSB and the RA-TYPE, the RRC message also has a scenario where the RRC message does not carry the synchronization signal and the association information between the physical layer broadcast channel block SSB and the random access TYPE RA-TYPE, specifically, a rule agreed by both parties is adopted based on the selection of the RA-TYPE by the user equipment and the base station, for example, the rule may be that 2-step RA is adopted when the SSB number < M is satisfied, and M is a positive integer selected according to an actual situation, so that based on the rule that specifies the association relationship between the SSB and the RA-TYPE, the following steps may still be performed, and the configuration of the random access channel may be successfully completed.

Step 102, determining the SSB to be configured.

Specifically, in the present embodiment, an SSB is selected from all available SSBs according to a certain rule, and the selected SSB is used as a configuration result of the SSB.

More specifically, as shown in FIG. 3, step 102 includes:

step 301, acquiring a reference signal received power threshold msgA-RSRP-threshold ssb of the synchronization signal and the physical layer broadcast channel block by msgA and a reference signal received power threshold RSRP-threshold ssb of the synchronization signal and the physical layer broadcast channel block.

Step 302, determining the SSBs to be configured according to a first threshold condition and a second threshold condition, wherein the first threshold condition is that the SS-RSRP of at least one SSB is greater than msgA-RSRP-threshold SSB, and the second threshold condition is that the SS-RSRP of at least one SSB is greater than RSRP-threshold SSB.

And 103, determining the RA-TYPE to be configured according to the association information between the SSB and the RA-TYPE to be configured.

In the present embodiment, in practical applications, the method generally includes, after step 101, the steps of: the method comprises the steps of obtaining RSRP of downlink loss, and then selecting carrier types according to the RSRP of the downlink loss and a comparison result of an RSRP threshold (RSRP-threshold SSB-SUL) selected between a Normal UpLink (NUL) carrier and a Supplementary UpLink (SUL) carrier. However, the problem to be solved by the present embodiment is how to select 2-step RA or 4-step RA, and the type of carrier used when 2-step RA is used is always NUL, so it is considered that NUL is always selected as a carrier after step 101.

Specifically, in this embodiment, since the RRC message carries the association information of the random access TYPE RA-TYPE corresponding to the SSB, after one SSB to be configured is determined from all the SSBs, the RA-TYPE corresponding to the SSB can be directly searched in the association information of the random access TYPE RA-TYPE corresponding to the SSB according to the SSB to be configured, and the searched RA-TYPE is used as the RA-TYPE to be configured.

And step 104, completing the configuration of the random access channel according to the SSB to be configured and the RA-TYPE to be configured.

Specifically, after determining the SSB to be configured and the RA-TYPE to be configured, the configuration of the random access channel may be completed by performing corresponding variable initialization, and then, the transmission of the corresponding message (msgA or msg1) may be directly performed.

A second embodiment of the present application relates to a method for configuring a random access channel, and the present embodiment is substantially the same as the first embodiment except that step 302 is further refined, and a specific flow of the present embodiment specifically includes, as shown in fig. 4:

step 401, receiving a radio resource management RRC message, where the RRC message carries association information between an SSB and a random access TYPE RA-TYPE and a reference signal received power Threshold msgA-RSRP-Threshold of msgA, and the RA-TYPE includes a 2-step random access RA and a 4-step RA.

Specifically, the RRC message in step 401 in this embodiment further carries a reference signal received power Threshold msgA-RSRP-Threshold of msgA, and the rest is substantially the same as step 101 in the first embodiment, which is not repeated here.

The SSB to be configured is obtained through steps 402 to 409, which are specifically as follows:

step 402, acquiring a reference signal received power threshold msgA-RSRP-threshold ssb of the synchronization signal and the physical layer broadcast channel block by msgA and a reference signal received power threshold RSRP-threshold ssb of the synchronization signal and the physical layer broadcast channel block.

And step 403, determining initial RA-TYPE according to msgA-RSRP-Threshold.

Specifically, an initial RA-TYPE is determined according to the size relationship between the acquired downlink loss RSRP and the msgA-RSRP-Threshold, and the determined initial RA-TYPE is initialized with corresponding parameters.

It should be noted that step 403 is substantially the same as that in the prior art, and therefore, is not described herein again.

Step 404, determine whether the initial RA-TYPE is RA in step 2.

Specifically, if yes, go to step 405, otherwise, go to step 406.

Step 405, taking a first threshold condition as a threshold condition, wherein the first threshold condition is that the SS-RSRP of at least one SSB is greater than msgA-RSRP-ThresholdSSB.

And step 406, taking a second threshold condition as a threshold condition, wherein the second threshold condition is that the SS-RSRP of at least one SSB is greater than the RSRP-ThresholdSSB.

Step 407, determine whether the threshold condition is satisfied, if yes, execute step 408, and if no, execute step 409.

And step 408, taking any SSB meeting the threshold condition as the SSB to be configured.

And step 409, taking any SSB as the SSB to be configured.

And step 410, determining the RA-TYPE to be configured according to the association information between the SSB and the RA-TYPE to be configured.

Specifically, step 410 in this embodiment is substantially the same as step 103 in the first embodiment, and therefore, the description thereof is omitted here.

Step 411, detecting whether the initial RA-TYPE is the same as the RA-TYPE to be configured.

Specifically, if yes, go to step 413, otherwise go to step 412.

Step 412, the initial RA-TYPE is changed to the RA-TYPE to be configured.

Specifically, if the initial RA-TYPE is a 2-step RA and the RA-TYPE to be configured is a 4-step RA, the execution of step 403 actually determines the RA-TYPE to be configured as the 2-step RA, and after the execution of step 412, the RA-TYPE to be configured is changed from the 2-step RA to the 4-step RA. Similarly, if the initial RA-TYPE is a 4-step RA and the RA-TYPE to be configured is a 2-step RA, the execution of step 403 actually determines the RA-TYPE to be configured as the 4-step RA, and the execution of step 412 changes the RA-TYPE to be configured from the 4-step RA to the 2-step RA.

Step 413, completing configuration of the random access channel according to the SSB to be configured and the RA-TYPE to be configured.

In this embodiment, the SSB in step 103 does not need to be reconfigured, and the configuration result of the SSB obtained in step 406 is still used. Specifically, preamble resources on RA resources to be configured by the SSB that determines the 2-step RA according to the second threshold value, the configured preamble resources can be used for the 2-step RA without following what is indicated by the configuration specified by the 3 GPP. At this time, on the RA resource to be configured by SSB not indicating 2-stepRA, the configured preamble resource can be used for 4-step RA without following the content indicated by the configuration specified by 3 GPP.

Compared with the prior art, on the basis of the first embodiment, the steps of determining the SSB in the prior art, namely, steps 401 to 409, are directly performed, so that the process change of the existing random access channel configuration is less, the existing protocol can be compatible, and the difficulty in implementing the method is reduced.

A third embodiment of the present application relates to a method for configuring a random access channel, and this embodiment is substantially the same as the first embodiment except that, as shown in fig. 5, a process of determining an SSB to be configured in the prior art is simplified, and specifically includes:

step 501, receiving a radio resource management RRC message, where the RRC message carries information to be configured between an SSB and a random access TYPE RA-TYPE, and the RA-TYPE includes a 2-step random access RA and a 4-step RA.

Specifically, step 401 in this embodiment is substantially the same as step 101 in the first embodiment, and therefore, the description thereof is omitted here.

The SSB to be configured is obtained through steps 502 to 507, which are specifically as follows:

step 502, a reference signal received power threshold msgA-RSRP-threshold ssb for the synchronization signal and the physical layer broadcast channel block and a reference signal received power threshold RSRP-threshold ssb for the synchronization signal and the physical layer broadcast channel block are obtained by msgA. Step 503, determine whether the first threshold condition is satisfied.

It should be noted that the first threshold condition is that the SS-RSRP of at least one SSB is greater than msgA-RSRP-threshold SSB.

Specifically, if yes, go to step 504, otherwise, go to step 505.

And step 504, taking any SSB meeting the first threshold condition as the SSB to be configured.

Step 505, determine whether a second threshold condition is satisfied.

It should be noted that the second threshold condition is that the SS-RSRP of the presence of at least one SSB is greater than RSRP-threshold SSB.

Specifically, if yes, go to step 506, otherwise, go to step 507.

Step 506, any SSB satisfying the second threshold condition is taken as the SSB to be configured.

And step 507, taking any SSB as the SSB to be configured.

And step 508, determining the to-be-configured RA-TYPE corresponding to the to-be-configured SSB according to the association information between the to-be-configured SSB and the RA-TYPE.

Specifically, step 508 in this embodiment is substantially the same as step 103 in the first embodiment, and therefore is not described herein again.

Step 509, the configuration of the random access channel is completed according to the SSB to be configured and the RA-TYPE to be configured.

Specifically, step 509 in this embodiment is substantially the same as step 104 in the first embodiment, and thus is not described herein again. Note that, in the present embodiment, the preamble resource on the SSB-associated RA resource of 2-stepRA has been indicated, and the configured preamble resource can be used for 2-step RA without following the configuration indication specified by 3 GPP. At this time, the configured preamble resource can be used for 4-stepRA on the RA resource associated with the SSB not indicating the 2-step RA, without following the configuration indication specified by the 3 GPP.

Compared with the prior art, on the basis of the first embodiment, as the step of acquiring the second RA-TYPE in the prior art is omitted, a BSS is selected as the SSB to be configured from all SSBs, and then 2-step RA or 4-step RA is selected as the RA-TYPE to be configured, so that the initial RA-TYPE to be configured and the corresponding initialization operation are reduced, the operation is not repeated, the process is simpler, and the time delay is smaller.

A fourth embodiment of the present application relates to a method for allocating a random access channel, and is substantially the same as the first embodiment except that, as shown in fig. 6, the method further includes, before step 104:

step 601, if the RA-TYPE to be configured is RA in 4 steps, judging whether SS-RSRP of the SSB to be configured is larger than a preset reference signal received power Threshold msgA-RSRP-Threshold of msgA.

Specifically, if yes, go to step 602, otherwise, go to step 603.

It should be noted that, in this embodiment, the specific values of the preset msgA-RSRP-Threshold are different from the msgA-RSRP-Threshold in the prior art mentioned in the second embodiment, and the preset msgA-RSRP-Threshold is a value manually set according to actual requirements, and by this value, some special cases (whether the SS-RSRP of the SSB to be configured is greater than the preset msgA reference signal received power Threshold msgA-RSRP-Threshold) are screened out and operated accordingly. Therefore, the screening conditions can be flexibly changed by presetting the numerical values, and the actual execution result is adjusted.

Step 602, updating the RA-TYPE to be configured to the 2-step RA.

Step 603, keeping the RA-TYPE to be configured unchanged.

Specifically, in this embodiment, when it is determined that the RA-TYPE to be configured is a 4-step RA, the SS-RSRP corresponding to the configuration result of the SSB is greater than the preset reference signal received power Threshold msgA-RSRP-Threshold msgA, the RA-TYPE to be configured is updated from the 4-step RA to the 2-step RA, and otherwise, the RA-TYPE to be configured is not updated. Thus, the result of this embodiment is that the SSB with the partial RA-TYPE selected as the configuration 4-step RA is actually updated to the configuration 2-step RA.

Note that, the preamble resource on the RA resource for which SSB association of 2-stepRA has been indicated, the configured preamble resource can be used for 2-stepRA without following the configuration indication specified by 3 GPP. At this time, the preamble resource on the RA resource associated with the SSB not indicating 2-stepRA is indicated according to the configuration specified by the 3GPP protocol.

Compared with the prior art, on the basis of the first embodiment, the embodiment can further update part of selected 4-step RA as the RA-TYPE to be configured to 2-step RA as the RA-TYPE to be configured by adopting the preset msgA-RSRP-Threshold, so that the time delay is further reduced, and the range of the user equipment covered by the update can be flexibly adjusted.

In order to make it clear for those skilled in the art to understand the random access channel configuration method disclosed in the first to fourth embodiments of the present invention, a fifth embodiment of the present invention will explain the above embodiments in terms of beam allocation as shown in fig. 7.

When it is necessary to solve the problem that the far-field user equipment fails in the 2-step RA because the far-field user equipment does not satisfy the hardware constraint condition, as shown in fig. 7, the cell has 24 narrow beams, and the system can calculate a maximum implementation constraint distance according to the cache capability of its own 2-step RA, and may adopt a formula:

and calculating the maximum implementation constraint distance, wherein TA is advance timing quantity reflecting the limitation of the buffer capacity, and c is the light speed.

When a plurality of user equipment are accessed simultaneously, the maximum TA difference allowed by the msgA-PUSCH demodulation performance can also calculate the maximum coverage distance to a beam.

Since the maximum implementation constraint distance covers the first and second layer beams, but does not cover the third layer beam, an access failure due to the fact that the limitation condition of hardware is not satisfied occurs on the third layer beam. At this time, the base station side can implement that the UE of the outer beam does not perform 2-step RA access by configuring signaling:

the bitmap signaling is: 11111111111111110000000 or the mask signaling is: 5.

under the signaling configuration, according to the first, second and third embodiments, 2-step RA can be realized on beams 0-15, and 4-step RA can be realized on beams 15-23. According to the third embodiment, 2-step RA can be realized on the beams 0-15, and 2-stepRA and 4-stepRA can be distinguished on the beams 15-23 through a preset RSRP threshold value.

When an RA-TYPE needs to be selected according to the service TYPE and the requirement of the RA-TYPE, as shown in fig. 7, a wide-narrow beam co-coverage scenario is as follows: within the same coverage area, there are 1, 2 or n (n >2) layers of beams, with 2 layers of beams being an example. In the first and second layer beam coverages of fig. 7, another layer of wide beams is provided, i.e., a narrow beam (0,1) synthesized wide beam 24, a narrow beam (2,3) synthesized wide beam 25, a narrow beam (4,5) synthesized wide beam 25, a narrow beam (5,7) synthesized wide beam 27, a narrow beam (8,9) synthesized wide beam 28, a narrow beam (10,11) synthesized wide beam 29, a narrow beam (12,13) synthesized wide beam 30, and a narrow beam (14,15) synthesized wide beam 31.

At this time, the base station side can distinguish different access modes of wide and narrow beams by configuring signaling, for example, the wide beam performs 2-stepRA access, and the narrow beam performs 4-stepRA access:

the signaling is configured by: the bitmap signaling may be set to 0000000000000000000000011111111 or the mask signaling may be set to 7.

Under the above signaling configuration, 4-stepRA or 2-stepRA can be selected by the ue in the co-coverage area, and based on the transmission characteristics of the data service to be transmitted, such as size or transmission delay requirement, the ue in the co-coverage area further selects RA-TYPE by selecting SSB in two-way according to the implementation. And 2-step RA is carried out on the wide beam to improve the access speed and reduce the time delay, and 4-step RA is carried out on the narrow beam to enhance the coverage.

In addition, it should be understood that the above steps of the various methods are divided for clarity, and the implementation may be combined into one step or split into some steps, and the steps are divided into multiple steps, so long as the same logical relationship is included in the protection scope of the present patent; it is within the scope of the patent to add insignificant modifications to the algorithms or processes or to introduce insignificant design changes to the core design without changing the algorithms or processes.

A sixth embodiment of the present invention relates to a random access channel configuration apparatus, as shown in fig. 8, including: a receiving module 801, a selecting module 802, and a configuring module 803.

The receiving module 801 is configured to receive a radio resource management RRC message, where the RRC message carries association information between an SSB and a random access TYPE RA-TYPE, and the RA-TYPE includes a 2-step random access RA and a 4-step RA.

The selecting module 802 is configured to determine an SSB to be configured, and determine an RA-TYPE to be configured according to association information between the SSB to be configured and the RA-TYPE.

A configuring module 803, configured to complete configuration of the random access channel according to the SSB to be configured and the RA-TYPE to be configured, which are determined by the selecting module.

It should be understood that this embodiment is a device embodiment corresponding to the first embodiment, and that this embodiment can be implemented in cooperation with the first embodiment. The related technical details mentioned in the first embodiment are still valid in this embodiment, and are not described herein again in order to reduce repetition. Accordingly, the related-art details mentioned in the present embodiment can also be applied to the first embodiment.

It should be noted that each module referred to in this embodiment is a logical module, and in practical applications, one logical unit may be one physical unit, may be a part of one physical unit, and may be implemented by a combination of multiple physical units. In addition, in order to highlight the innovative part of the present invention, elements that are not so closely related to solving the technical problems proposed by the present invention are not introduced in the present embodiment, but this does not indicate that other elements are not present in the present embodiment.

An eighth embodiment of the present application relates to an electronic apparatus, as shown in fig. 9, including: includes at least one processor 901; and, memory 902 communicatively connected to at least one processor 901; the memory 902 stores instructions executable by the at least one processor 901, and the instructions are executed by the at least one processor 901, so that the at least one processor 901 can execute the method for configuring the random access channel described in any of the above method embodiments.

The memory 902 and the processor 901 are coupled by a bus, which may comprise any number of interconnected buses and bridges that couple one or more of the various circuits of the processor 901 and the memory 902. The bus may also connect various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. A bus interface provides an interface between the bus and the transceiver. The transceiver may be one element or a plurality of elements, such as a plurality of receivers and transmitters, providing a means for communicating with various other apparatus over a transmission medium. The data processed by the processor 901 is transmitted over a wireless medium via an antenna, which further receives the data and transmits the data to the processor 901.

The processor 901 is responsible for managing the bus and general processing and may also provide various functions including timing, peripheral interfaces, voltage regulation, power management, and other control functions. And memory 902 may be used for storing data used by processor 901 in performing operations.

A ninth embodiment of the present invention relates to a computer-readable storage medium storing a computer program. The computer program realizes the above-described method embodiments when executed by a processor.

That is, as can be understood by those skilled in the art, all or part of the steps in the method for implementing the foregoing embodiments may be implemented by a program instructing related hardware, where the program is stored in a storage medium and includes several instructions to enable a device (which may be a single chip, a chip, or the like) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific embodiments for carrying out the present application, and that various changes in form and details may be made therein without departing from the spirit and scope of the present application in practice.

Claims

1. A method for configuring a random access channel, comprising:

receiving a radio resource management (RRC) message, wherein the RRC message carries association information between an SSB and a random access TYPE (RA-TYPE), and the RA-TYPE comprises a 2-step Random Access (RA) and a 4-step RA;

determining an SSB to be configured;

determining the RA-TYPE to be configured according to the association information between the SSB and the RA-TYPE to be configured; and completing the configuration of a random access channel according to the SSB to be configured and the RA-TYPE to be configured.

2. The method of claim 1, wherein the determining the SSB to be configured comprises:

acquiring a reference signal received power threshold msgA-RSRP-ThresholdSSB of the msgA to a synchronous signal and a physical layer broadcast channel block and a reference signal received power threshold RSRP-ThresholdSSB of the msgA to the synchronous signal and the physical layer broadcast channel block;

determining the SSBs to be configured according to a first threshold condition and a second threshold condition, wherein the first threshold condition is that the SS-RSRP of at least one SSB is greater than the msgA-RSRP-ThresholdSSB, and the second threshold condition is that the SS-RSRP of at least one SSB is greater than the RSRP-ThresholdSSB.

3. The method of claim 2, wherein the RRC message further carries a reference signal received power Threshold msgA-RSRP-Threshold of msgA, and wherein before obtaining the configuration result of the SSB, determining an initial RA-TYPE according to the msgA-RSRP-Threshold, and determining the SSB to be configured according to a first Threshold condition and a second Threshold condition comprises:

detecting whether the initial RA-TYPE is RA in the 2 steps;

if so, taking the first threshold condition as the threshold condition;

if not, taking the second threshold condition as the threshold condition;

judging whether the threshold condition is met;

if yes, determining any SSB meeting the threshold condition as the SSB to be configured;

if not, any SSB is determined to be the SSB to be configured;

after determining the RA-TYPE to be configured according to the association information between the SSB to be configured and the RA-TYPE, before completing configuration of a random access channel according to the SSB to be configured and the RA-TYPE to be configured, the method further includes:

detecting whether the initial RA-TYPE is the same as the RA-TYPE to be configured;

if not, the initial RA-TYPE is changed into the RA-TYPE to be configured.

4. The method of claim 2, wherein the determining the SSB to be configured according to a first threshold condition and a second threshold condition comprises:

judging whether the first threshold condition is met;

if the first threshold condition is met, determining any SSB meeting the first threshold condition as the SSB to be configured;

if the first threshold condition is not met, judging whether the second threshold condition is met;

if the second threshold condition is met, determining any SSB meeting the second threshold condition as the SSB to be configured;

and if the second threshold condition is not met, determining any SSB as the SSB to be configured.

5. The method according to any of claims 1 to 4, wherein before the configuring of the random access channel is completed according to the SSB to be configured and the RA-TYPE to be configured, after the determining of the RA-TYPE to be configured according to the association information and the SSB to be configured, the method further comprises:

if the RA-TYPE to be configured is RA in 4 steps, judging whether the SS-RSRP of the SSB to be configured is larger than a preset reference signal received power Threshold msgA-RSRP-Threshold of msgA or not;

and if so, updating the RA-TYPE to be configured into the RA in the step 2.

6. The method of claim 1, wherein the association information is represented in a bitmap, wherein the length of the bitmap is the number of the SSBs, each bit of the bitmap corresponds to one of the SSBs, and a value of the bit indicates whether the RA-TYPE corresponding to the SSB is the 2-step RA or the 4-step RA.

7. The method of claim 1, wherein the association relationship is indicated by masks, wherein the length of the masks is the number of the SSBs, and one of the masks corresponds to a preset association relationship, and the association relationship is a mapping relationship between the SSBs and the RA-TYPE.

8. An apparatus for configuring a random access channel, comprising:

the system comprises a receiving module, a sending module and a receiving module, wherein the receiving module is used for receiving a radio resource management (RRC) message, the RRC message carries association information of an SSB and a random access TYPE RA-TYPE, and the RA-TYPE comprises a 2-step random access RA and a 4-step RA;

the selection module is used for determining the SSB to be configured and determining the RA-TYPE to be configured according to the association information between the SSB to be configured and the RA-TYPE;

and the configuration module is used for completing the configuration of the random access channel according to the SSB to be configured and the RA-TYPE to be configured, which are determined by the selection module.

9. An electronic device, comprising:

at least one processor; and the number of the first and second groups,

the memory stores instructions executable by the at least one processor to enable the at least one processor to perform a method of configuring a random access channel according to any one of claims 1 to 7.

10. A computer-readable storage medium storing a computer program, wherein the computer program is executed by a processor to implement the method for configuring a random access channel according to any one of claims 1 to 7.