Method, apparatus and storage medium for configuring random access channel

Abstract

This application relates to the field of communications and proposes a method, apparatus, electronic device, and storage medium for configuring a random access channel. The method for configuring a random access channel includes: receiving a Radio Resource Management (RRC) message, wherein the RRC message carries association information between a Service Block (SSB) and a Random Access Type (RA-TYPE), the RA-TYPE including a 2-step random access RA and a 4-step RA; determining the SSB to be configured; determining the RA-TYPE to be configured based on the association information between the SSB and the RA-TYPE; and completing the configuration of the random access channel based on the SSB and the RA-TYPE. Applied in contention-based random access (CBRA) processes, this method achieves the goals of beam-based random access channel configuration, improved system access success rate, and reduced latency.

Description

Technical Field

[0001] This application relates to the field of communications, and in particular to a method, apparatus, electronic device, and storage medium for configuring a random access channel. Background Technology

[0002] Two-step random access (2-RACH) is a new access method introduced in the Release 16 (R16) protocol specification. It simplifies the original four-step RACH to two steps, significantly reducing latency. However, not all random access scenarios can use 2-step RACH. Therefore, the choice between 2-step and four-step RACH must be made based on different situations before configuring the RACH accordingly. Currently, the main method for configuring random channel access is as follows: first, determine whether to use 2-step or four-step RACH based on the Reference Signal Receiving Power (RSRP) threshold, and then select the synchronization signal and the PBCH block SSB.

[0003] However, for far-field user equipment that has selected a 2-step RA, even if all the reference signal received power threshold conditions can be met, the 2-step RA may fail due to the inability to meet hardware buffering limitations, such as the timing advance (TA) condition or the demodulation performance of the msgA-Physical Uplink Shared Channel (msgA-PUSCH). This would require a fallback to a 4-step RA, reducing the system's access success rate and increasing latency. Summary of the Invention

[0004] The main objective of this application is to propose a method, apparatus, electronic device, and storage medium for configuring a random access channel, which aims to meet the buffering limitations imposed by hardware, enabling the configuration of random access channels based on beams, improving the system's access success rate, and reducing latency.

[0005] To achieve the above objectives, this application provides a method for configuring a random access channel, the method comprising 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), the RA-TYPE including a 2-step random access RA and a 4-step RA; determining the SSB to be configured; determining the RA-TYPE to be configured based on the association information between the SSB to be configured and the RA-TYPE; and completing the configuration of the random access channel based on the SSB to be configured and the RA-TYPE to be configured.

[0006] An embodiment of the present invention also provides a random access channel configuration apparatus, comprising: a receiving module, configured to receive a Radio Resource Management (RRC) message, wherein the RRC message carries association information between an SSB and a Random Access Type (RA-TYPE), the RA-TYPE including a 2-step random access RA and a 4-step RA; a selection module, configured to determine an SSB to be configured, and to determine an RA-TYPE to be configured based on the association information between the SSB to be configured and the RA-TYPE; and a configuration module, configured to complete the configuration of the random access channel based on the SSB to be configured and the RA-TYPE to be configured determined by the selection module.

[0007] Embodiments of the present invention also provide an electronic device, comprising:

[0008] At least one processor; and,

[0009] A memory communicatively connected to the at least one processor; wherein,

[0010] The memory stores instructions that can be executed by the at least one processor, which, when executed, enable the at least one processor to perform the random access channel configuration method described above.

[0011] Embodiments of the present invention also provide a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the above-described method for configuring a random access channel.

[0012] Compared to existing technologies, the embodiments of this invention allow the received RRC message to carry the association information between the SSB and the random access type RA-TYPE. This enables the determination of the SSB to be configured, the RA-TYPE to be configured to be obtained based on the association information between the SSB and the RA-TYPE, and then the configuration of the random access channel is completed based on the SSB and the RA-TYPE. Since the association information between the SSB and the RA-TYPE can directly determine whether the RA-TYPE to be configured for each SSB is a 2-step RA or a 4-step RA, SSBs that do not meet the hardware constraints can be directly defined as corresponding to a 4-step RA. This ensures that the selection of the RA-TYPE to be configured meets the buffering constraints imposed by the hardware. Furthermore, the RA-TYPE to be configured is selected based on the beam information SSB, thereby achieving beam-based selection of the random access channel, avoiding 2-step access failures and backtracking to a 4-step RA after a 2-step access failure, improving the system's access success rate, and avoiding the increased latency caused by backtracking. Attached Figure Description

[0013] One or more embodiments are illustrated by way of example with reference to the accompanying drawings, and these illustrations are not intended to limit the embodiments.

[0014] Figure 1 This is a flowchart of the random access channel configuration method provided in the first embodiment of this application;

[0015] Figure 2 This is a bitmap indication diagram of the random access channel configuration method provided in the first embodiment of this application;

[0016] Figure 3 This is a flowchart of step 102 in the random access channel configuration method provided in the first embodiment of this application;

[0017] Figure 4 This is a flowchart of the random access channel configuration method provided in the second embodiment of this application;

[0018] Figure 5 This is a flowchart of the random access channel configuration method provided in the third embodiment of this application;

[0019] Figure 6 This is a flowchart of the random access channel configuration method provided in the fourth embodiment of this application;

[0020] Figure 7 This is a schematic diagram of beam allocation in the random access channel configuration method provided in the fifth embodiment of this application;

[0021] Figure 8 This is a schematic diagram of the configuration apparatus for a random access channel provided in the sixth embodiment of this application;

[0022] Figure 9 This is a schematic diagram of the structure of the electronic device provided in the seventh embodiment of this application. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the various embodiments of this application will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been presented in the various embodiments of this application to facilitate the reader's better understanding of this application. However, the technical solutions claimed in this application can be implemented even without these technical details and with various changes and modifications based on the following embodiments. The division of the various embodiments below is for the convenience of description and should not constitute any limitation on the specific implementation of this application. The various embodiments can be combined with and referenced by each other without contradiction.

[0024] The first embodiment of this application relates to a method for configuring a random access channel, wherein the executing entity is a user equipment, such as... Figure 1 As shown, it specifically includes:

[0025] Step 101: Receive a Radio Resource Management (RRC) message, wherein the RRC message carries the association information between the SSB and the Random Access Type (RA-TYPE), and the RA-TYPE includes a 2-step random access RA and a 4-step RA.

[0026] Specifically, in this embodiment, SSB is the synchronization signal and physical layer broadcast channel block. The association information between SSB and random access type RA-TYPE can be represented in the form of a bitmap or a mask. Of course, the above is only a specific example. In actual use, the representation of the association information between SSB and random access type RA-TYPE can also include other forms, which will not be elaborated here. Moreover, the association information between SSB and random access type RA-TYPE carried in the RRC message can be selected based on the user equipment's own service type and requirements or based on the beamwidth. For example, far-field user equipment needs to ensure access success rate as much as possible. Therefore, based on the fact that a 4-step RA will not result in a situation where the RSRP condition is met but the hardware limitation condition is not met, the specific SSB of the corresponding far-field beam is set to a 4-step RA to avoid access failure.

[0027] More specifically, when the association information between the SSB and the random access type RA-TYPE is represented in the form of a bitmap, such as Figure 2 As shown, the bitmap name for the association information between SSB and random access type RA-TYPE can be defined as RATypeSSBbitmap. Each bit of RATypeSSBbitmap directly indicates the second preset value of the RA-TYPE associated with the SSB. The length of RATypeSSBbitmap is the number of SSBs used by the system. When a bit in RATypeSSBbitmap is 1, it indicates that the RA-TYPE corresponding to the SSB is a 2-step RA, i.e., a 2-step RACH beam is configured. When the association information between SSB and random access type RA-TYPE is represented in bitmap form, as shown in the table below, the second mask name for the association information between SSB and random access type RA-TYPE can be defined as RATypeSSBResMaskIndex. One RATypeSSBResMaskIndex corresponds to a pre-set association relationship, which is a mapping relationship between SSB and RA-TYPE. The length of RATypeSSBResMaskIndex can be 4 bits. The SSBs indicated in the table all use 2-step RA.

[0028] 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

[0029] It should be noted that the protocol stipulates that the maximum number of SSBs is 64, the bitmap needs to support up to 64 bits at most, and the mask needs to support up to 4 bits according to the above example. It has little impact on the RRC message carrying the association information between the synchronization signal and the physical layer broadcast channel block SSB and the random access type RA-TYPE. Since the system needs to disconnect the network during the SSB reconfiguration process, when the SSB is reconfigured, it is also necessary to reconfigure the bitmap or mask of the association information between the SSB and RA-TYPE carried in the RRC message accordingly. Although the above are all cases where the RRC message carries the association information between the SSB and RA-TYPE, there are also scenarios where the RRC message does not carry the association information between the synchronization signal and the physical layer broadcast channel block SSB and the random access type RA-TYPE. Specifically, a mutually agreed rule is adopted based on the selection of the RA-TYPE by the user equipment and the base station. For example, the rule can be that when the SSB number < M, two-step RA is used, and M is a positive integer selected according to the actual situation. Therefore, based on this rule that defines the association relationship between the SSB and RA-TYPE, the following steps can still be executed to successfully complete the configuration of the random access channel.

[0030] Step 102, determine the SSB to be configured.

[0031] Specifically, in this embodiment, an SSB is selected from all available SSBs according to a certain rule, and the selected SSB is used as the configuration result of the SSB.

[0032] More specifically, as Figure 3 shown, step 102 includes:

[0033] Step 301, obtain the reference signal received power threshold msgA-RSRP-ThresholdSSB of msgA for the synchronization signal and the physical layer broadcast channel block and the reference signal received power threshold RSRP-ThresholdSSB for the synchronization signal and the physical layer broadcast channel block.

[0034] Step 302, determine the SSB to be configured according to the first threshold condition and the second threshold condition. Among them, the first threshold condition is that there is at least one SSB whose SS-RSRP is greater than msgA-RSRP-ThresholdSSB, and the second threshold condition is that there is at least one SSB whose SS-RSRP is greater than RSRP-ThresholdSSB.

[0035] Step 103, determine the RA-TYPE to be configured according to the association information between the SSB to be configured and RA-TYPE.

[0036] It should be noted that, in this embodiment, in practical applications, after step 101, there is generally an additional step: obtaining the downlink loss RSRP, and then selecting the carrier type based on the comparison result of the RSRP threshold (rsrp-ThresholdSSB-SUL) between the downlink loss RSRP and the normal uplink (NUL) carrier and the supplementary uplink (SUL) carrier. However, since the problem solved by this embodiment is how to select between 2-step RA and 4-step RA, and the carrier type used when using 2-step RA is always NUL, it can be assumed that NUL will always be selected as the carrier after step 101.

[0037] Specifically, in this embodiment, since the RRC message carries the association information of the random access type RA-TYPE corresponding to the SSB, after determining an SSB to be configured from all 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, and the found RA-TYPE is used as the RA-TYPE to be configured.

[0038] Step 104: Configure the random access channel according to the SSB and RA-TYPE to be configured.

[0039] Specifically, after determining the SSB and RA-TYPE to be configured, the corresponding variables are initialized to complete the configuration of the random access channel, and then the corresponding message (msgA or msg1) is transmitted directly.

[0040] Compared to existing technologies, the embodiments of this invention allow the received RRC message to carry the association information between the SSB and the random access type RA-TYPE. This enables the determination of the SSB to be configured, the RA-TYPE to be configured to be obtained based on the association information between the SSB and the RA-TYPE, and then the configuration of the random access channel is completed based on the SSB and the RA-TYPE. Since the association information between the SSB and the RA-TYPE can directly determine whether the RA-TYPE to be configured for each SSB is a 2-step RA or a 4-step RA, SSBs that do not meet the hardware constraints can be directly defined as corresponding to a 4-step RA. This ensures that the selection of the RA-TYPE to be configured meets the buffering constraints imposed by the hardware. Furthermore, the RA-TYPE to be configured is selected based on the beam information SSB, thereby achieving beam-based selection of the random access channel, avoiding 2-step access failures and backtracking to a 4-step RA after a 2-step access failure, improving the system's access success rate, and avoiding the increased latency caused by backtracking.

[0041] The second embodiment of this application relates to a method for configuring a random access channel. This embodiment is largely the same as the first embodiment, except that step 302 is further refined. The specific process of this embodiment is as follows: Figure 4 As shown, it specifically includes:

[0042] Step 401: Receive a Radio Resource Management (RRC) message, wherein the RRC message carries the association information between the SSB and the Random Access Type (RA-TYPE) and the reference signal received power threshold (msgA-RSRP-Threshold) of msgA. The RA-TYPE includes 2-step random access RA and 4-step RA.

[0043] Specifically, in step 401 of this embodiment, the RRC message also carries the reference signal received power threshold msgA-RSRP-Threshold for msgA. The rest is roughly the same as step 101 in the first embodiment, so it will not be described in detail here.

[0044] The SSB to be configured is obtained through steps 402-409, as detailed below:

[0045] Step 402: Obtain the reference signal received power threshold msgA-RSRP-ThresholdSSB for the synchronization signal and the physical layer broadcast channel block and the reference signal received power threshold RSRP-ThresholdSSB for the synchronization signal and the physical layer broadcast channel block.

[0046] Step 403: Determine the initial RA-TYPE based on msgA-RSRP-Threshold.

[0047] Specifically, the initial RA-TYPE is determined based on the relationship between the obtained downlink loss RSRP and msgA-RSRP-Threshold, and the determined initial RA-TYPE is used for corresponding parameter initialization.

[0048] It should be noted that step 403 is largely the same as the prior art, so it will not be described in detail here.

[0049] Step 404: Determine if the initial RA-TYPE is a 2-step RA.

[0050] Specifically, if yes, proceed to step 405; otherwise, proceed to step 406.

[0051] Step 405: Use the first threshold condition as the threshold condition, wherein the first threshold condition is that there is at least one SSB whose SS-RSRP is greater than msgA-RSRP-ThresholdSSB.

[0052] Step 406: Use the second threshold condition as the threshold condition, wherein the second threshold condition is that there is at least one SSB and the SS-RSRP is greater than RSRP-ThresholdSSB.

[0053] Step 407: Determine whether the threshold condition is met. If yes, proceed to step 408; otherwise, proceed to step 409.

[0054] Step 408: Select any SSB that meets the threshold condition as the SSB to be configured.

[0055] Step 409: Select any SSB as the SSB to be configured.

[0056] Step 410: Determine the RA-TYPE to be configured based on the association information between the SSB to be configured and the RA-TYPE.

[0057] Specifically, step 410 in this embodiment is largely the same as step 103 in the first embodiment, and will not be described in detail here.

[0058] Step 411: Check whether the initial RA-TYPE is the same as the RA-TYPE to be configured.

[0059] Specifically, if yes, proceed to step 413; otherwise, proceed to step 412.

[0060] Step 412: Change the initial RA-TYPE to the RA-TYPE to be configured.

[0061] Specifically, if the initial RA-TYPE is a 2-step RA and the RA-TYPE to be configured is a 4-step RA, executing step 403 will actually determine the RA-TYPE to be configured as a 2-step RA, and after executing step 412, the RA-TYPE to be configured will be changed from a 2-step RA to a 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, executing step 403 will actually determine the RA-TYPE to be configured as a 4-step RA, and after executing step 412, the RA-TYPE to be configured will be changed from a 4-step RA to a 2-step RA.

[0062] Step 413: Configure the random access channel according to the SSB and RA-TYPE to be configured.

[0063] It should be noted that in this embodiment, the SSB in step 103 does not need to be reconfigured; the configuration result of the SSB obtained in step 406 is still used. Specifically, for the preamble resources on the RA resources to be configured for the 2-step RA based on the second threshold, the configured preamble resources can all be used for the 2-step RA without following the configuration instructions specified by 3GPP. At this time, for the preamble resources on the RA resources to be configured for the SSB that does not indicate the 2-step RA, the configured preamble resources can all be used for the 4-step RA without following the configuration instructions specified by 3GPP.

[0064] Compared with the prior art, this embodiment directly inherits the steps of determining the SSB in the prior art, namely steps 401 to 409, which makes less change to the existing random access channel configuration process, thus enabling compatibility with existing protocols and reducing the difficulty of method implementation.

[0065] The third embodiment of this application relates to a method for configuring a random access channel. This embodiment is largely the same as the first embodiment, except that, as Figure 5 As shown, the process of determining the SSB to be configured in the prior art has been simplified, specifically including:

[0066] Step 501: Receive a Radio Resource Management (RRC) message, wherein the RRC message carries the information to be configured between the SSB and the Random Access Type (RA-TYPE), and the RA-TYPE includes a 2-step random access RA and a 4-step RA.

[0067] Specifically, step 401 in this embodiment is largely the same as step 101 in the first embodiment, and will not be described in detail here.

[0068] The SSB to be configured is obtained through steps 502-507, as detailed below:

[0069] Step 502: Obtain the reference signal received power threshold msgA-RSRP-ThresholdSSB for the synchronization signal and the physical layer broadcast channel block, and the reference signal received power threshold RSRP-ThresholdSSB for the synchronization signal and the physical layer broadcast channel block. Step 503: Determine whether the first threshold condition is met.

[0070] It should be noted that the first threshold condition is that there is at least one SSB whose SS-RSRP is greater than msgA-RSRP-ThresholdSSB.

[0071] Specifically, if yes, proceed to step 504; otherwise, proceed to step 505.

[0072] Step 504: Select any SSB that meets the first threshold condition as the SSB to be configured.

[0073] Step 505: Determine whether the second threshold condition is met.

[0074] It should be noted that the second threshold condition is that the SS-RSRP of at least one SSB is greater than the RSRP-ThresholdSSB.

[0075] Specifically, if yes, proceed to step 506; otherwise, proceed to step 507.

[0076] Step 506: Select any SSB that meets the second threshold condition as the SSB to be configured.

[0077] Step 507: Select any SSB as the SSB to be configured.

[0078] Step 508: Determine the RA-TYPE corresponding to the SSB to be configured based on the association information between the SSB to be configured and the RA-TYPE.

[0079] Specifically, step 508 in this embodiment is largely the same as step 103 in the first embodiment, and will not be described in detail here.

[0080] Step 509: Configure the random access channel according to the SSB and RA-TYPE to be configured.

[0081] Specifically, step 509 in this embodiment is largely the same as step 104 in the first embodiment, and will not be described in detail here. It should be noted that in this embodiment, the preamble resources configured on the RA resources associated with the SSB that have indicated 2-step RA can all be used for 2-step RA, without needing to follow the configuration indicated by 3GPP. At this time, the preamble resources configured on the RA resources associated with the SSB that have not indicated 2-step RA can all be used for 4-step RA, without needing to follow the configuration indicated by 3GPP.

[0082] Compared with the prior art, this embodiment omits the step of obtaining the second RA-TYPE in the prior art by first selecting a BSS from all SSBs as the SSB to be configured, and then choosing whether to use the 2-step RA as the RA-TYPE to be configured or the 4-step RA as the RA-TYPE to be configured. This reduces the determination of the initial RA-TYPE to be configured and the corresponding initialization operation, making the operation non-repetitive, the process simpler, and the latency smaller.

[0083] The fourth embodiment of this application relates to a method for configuring a random access channel. This embodiment is largely the same as the first embodiment, except that, as follows: Figure 6 As shown, the procedure before step 104 also includes:

[0084] Step 601: If the RA-TYPE to be configured is a 4-step RA, determine whether the SS-RSRP of the SSB to be configured is greater than the preset reference signal received power threshold msgA-RSRP-Threshold.

[0085] Specifically, if yes, proceed to step 602; otherwise, proceed to step 603.

[0086] It should be noted that in this embodiment, the specific value of the preset msgA-RSRP-Threshold differs from that in the prior art mentioned in the second embodiment. The preset msgA-RSRP-Threshold is a value manually set according to actual needs. Through this value, certain special cases (whether the SS-RSRP of the SSB to be configured is greater than the preset reference signal received power threshold msgA-RSRP-Threshold) are filtered out and corresponding operations are performed. Therefore, the filtering conditions can be flexibly changed by using the preset value, and the actual execution result can be adjusted.

[0087] Step 602: Update the RA-TYPE to be configured to 2-step RA.

[0088] Step 603: Keep the RA-TYPE to be configured unchanged.

[0089] Specifically, in this embodiment, when the RA-TYPE to be configured has been determined to be a 4-step RA, if the SS-RSRP corresponding to the SSB configuration result is greater than the preset reference signal received power threshold msgA-RSRP-Threshold for msgA, the RA-TYPE to be configured will be updated from a 4-step RA to a 2-step RA. Otherwise, no update will occur. Therefore, the result of this embodiment is actually to update some SSBs selected for 4-step RA configuration to 2-step RA configuration.

[0090] It should be noted that for preamble resources on RA resources associated with an SSB that has been indicated as 2-step RA, the configured preamble resources can all be used for 2-step RA, without having to follow the configuration indicated by 3GPP. In this case, for preamble resources on RA resources associated with an SSB that has not been indicated as 2-step RA, the configuration indicated by the 3GPP protocol shall apply.

[0091] Compared with the prior art, this embodiment, based on the first embodiment, can further update the selected 4-step RA as the RA-TYPE to be configured by using a preset msgA-RSRP-Threshold, thereby further reducing the latency and flexibly adjusting the range of user equipment covered by the update.

[0092] To enable those skilled in the art to more clearly understand the random access channel configuration methods disclosed in the first to fourth embodiments of the present invention, the fifth embodiment of the present invention is as follows: Figure 7 The beam distribution angle shown above illustrates the implementation method.

[0093] When it is necessary to resolve the issue of two-step RA failure caused by far-field user equipment not meeting hardware limitations, such as Figure 7 As shown, this cell has 24 narrow beams. Based on its 2-step RA buffering capacity, the system can calculate a maximum implementation constraint distance using the following formula: Calculate the maximum implementation constraint distance, where TA is the advance timing amount, reflecting the cache capacity limit, and c is the speed of light.

[0094] When multiple user equipments access the network simultaneously, the maximum TA difference allowed by the demodulation performance of msgA-PUSCH can also be used to calculate the maximum coverage distance of the beam.

[0095] Since the maximum implementation constraint distance covers the first and second layer beams but not all of the third layer beams, access failures may occur on the third layer beam due to unmet hardware constraints. In this case, the base station can configure signaling to prevent UEs on the outer layer beams from performing the two-step RA access:

[0096] The bitmap signaling is: 11111111111111110000000 or the mask signaling is: 5.

[0097] Under this signaling configuration, according to embodiments one, two, and three, a 2-step RA can be implemented on beams 0-15, and a 4-step RA can be implemented on beams 15-23. According to embodiment three, a 2-step RA can be implemented on beams 0-15, and a 2-step RA and a 4-step RA can be distinguished by a preset RSRP threshold on beams 15-23.

[0098] When it is necessary to select RA-TYPE based on one's own business type and needs, such as Figure 7 The scenario shown illustrates the co-coverage of wide and narrow beams: within the same coverage area, there are 1, 2, or n layers of beams (n>2), taking 2 layers as an example. Figure 7 Above the first and second beam coverage, there is another wide beam, which are: narrow beam (0,1) combined to form wide beam 24, narrow beam (2,3) combined to form wide beam 25, narrow beam (4,5) combined to form wide beam 25, narrow beam (5,7) combined to form wide beam 27, narrow beam (8,9) combined to form wide beam 28, narrow beam (10,11) combined to form wide beam 29, narrow beam (12,13) ​​combined to form wide beam 30, and narrow beam (14,15) combined to form wide beam 31.

[0099] At this point, the base station can configure signaling to differentiate between wide and narrow beam access methods, such as wide beams using 2-step RA access and narrow beams using 4-step RA access.

[0100] Configure signaling as follows: Bitmap signaling can be set to 0000000000000000000000011111111 or mask signaling can be set to 7.

[0101] Under the above signaling configuration, 4-step RA or 2-step RA can be selected by user equipment in the shared coverage area. User equipment in the shared coverage area, based on the transmission characteristics of the data services to be transmitted, such as size or transmission delay requirements, further selects the RA-TYPE by selecting the SSB according to implementation methods one, two, and three. 2-step RA is performed on wide beams to improve access speed and reduce latency, while 4-step RA is performed on narrow beams to enhance coverage.

[0102] Furthermore, it should be understood that the step divisions of the various methods described above are only for clarity. In practice, they can be combined into one step or some steps can be split into multiple steps. As long as they include the same logical relationship, they are all within the scope of protection of this patent. Adding insignificant modifications or introducing insignificant designs to the algorithm or process, but without changing the core design of the algorithm and process, are also within the scope of protection of this patent.

[0103] The sixth embodiment of the present invention relates to a configuration apparatus for a random access channel, such as... Figure 8 As shown, it includes: a receiving module 801, a selection module 802, and a configuration module 803.

[0104] The receiving module 801 is used to receive Radio Resource Management (RRC) messages, wherein the RRC message carries the association information between the SSB and the Random Access Type (RA-TYPE), and the RA-TYPE includes 2-step random access RA and 4-step RA.

[0105] Select module 802 is used to determine the SSB to be configured, and to determine the RA-TYPE to be configured based on the association information between the SSB to be configured and the RA-TYPE.

[0106] Configuration module 803 is used to configure the random access channel based on the SSB and RA-TYPE to be configured determined by the selection module.

[0107] It is not difficult to see that this embodiment is a device embodiment corresponding to the first embodiment, and this embodiment can be implemented in conjunction with the first embodiment. The relevant technical details mentioned in the first embodiment are still valid in this embodiment, and will not be repeated here to reduce repetition. Accordingly, the relevant technical details mentioned in this embodiment can also be applied to the first embodiment.

[0108] It is worth mentioning that all modules involved in this embodiment are logical modules. In practical applications, a logical unit can be a physical unit, a part of a physical unit, or a combination of multiple physical units. Furthermore, to highlight the innovative aspects of this invention, this embodiment does not introduce units that are not closely related to solving the technical problem proposed by this invention; however, this does not mean that other units are absent from this embodiment.

[0109] The eighth embodiment of this application relates to an electronic device, such as... Figure 9As shown, it includes: at least one processor 901; and a memory 902 communicatively connected to at least one processor 901; wherein the memory 902 stores instructions executable by at least one processor 901, which are executed by at least one processor 901 to enable at least one processor 901 to perform the random access channel configuration method described in any of the above method embodiments.

[0110] The memory 902 and processor 901 are connected via a bus, which can include any number of interconnecting buses and bridges. The bus connects various circuits of one or more processors 901 and memory 902 together. The bus can also connect various other circuits, such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. A bus interface provides an interface between the bus and the transceiver. The transceiver can be a single element or multiple elements, such as multiple receivers and transmitters, providing a unit for communicating with various other devices over a transmission medium. Data processed by processor 901 is transmitted over a wireless medium via an antenna, which further receives data and transmits it to processor 901.

[0111] Processor 901 is responsible for managing the bus and general processing, and can also provide various functions, including timing, peripheral interfaces, voltage regulation, power management, and other control functions. Memory 902 can be used to store data used by processor 901 during operation.

[0112] The ninth embodiment of the present invention relates to a computer-readable storage medium storing a computer program. When the computer program is executed by a processor, it implements the above-described method embodiments.

[0113] That is, those skilled in the art will understand that all or part of the steps in the methods of the above embodiments can be implemented by a program instructing related hardware. This program is stored in a storage medium and includes several instructions to cause a device (which may be a microcontroller, chip, etc.) or processor to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as a USB flash drive, a portable hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0114] Those skilled in the art will understand that the above embodiments are specific implementations of this application, and in practical applications, various changes can be made in form and detail without departing from the spirit and scope of this application.

Claims

1. A method for configuring a random access channel, characterized in that, include: Receive a Radio Resource Management (RRC) message, wherein the RRC message carries association information between an SSB and a Random Access Type (RA-TYPE), wherein the RA-TYPE includes a 2-step random access RA and a 4-step RA, and the association information is represented in the form of a bitmap, wherein the length of the bitmap is the number of SSBs, each bit of the bitmap corresponds to one SSB, and the value of the bit indicates whether the RA-TYPE corresponding to the SSB is a 2-step RA or a 4-step RA; Identify the SSB to be configured; The RA-TYPE to be configured is determined based on the association information between the SSB to be configured and the RA-TYPE; the random access channel is configured based on the SSB to be configured and the RA-TYPE to be configured.

2. The method according to claim 1, characterized in that, The process of determining the SSB to be configured includes: Obtain the reference signal received power threshold msgA-RSRP-ThresholdSSB for msgA to the synchronization signal and physical layer broadcast channel block and the reference signal received power threshold RSRP-ThresholdSSB for msgA to the synchronization signal and physical layer broadcast channel block; The SSB to be configured is determined according to a first threshold condition and a second threshold condition, wherein the first threshold condition is that there is at least one SSB whose SS-RSRP is greater than the msgA-RSRP-ThresholdSSB, and the second threshold condition is that there is at least one SSB whose SS-RSRP is greater than the RSRP-ThresholdSSB.

3. The method according to claim 2, characterized in that, The RRC message also carries the reference signal received power threshold msgA-RSRP-Threshold for msgA. Before obtaining the configuration result of the SSB, the initial RA-TYPE is determined according to msgA-RSRP-Threshold. The step of determining the SSB to be configured according to the first threshold condition and the second threshold condition includes: Detect whether the initial RA-TYPE is a 2-step RA; If so, the first threshold condition shall be used as the threshold condition; If not, the second threshold condition shall be used as the threshold condition; Determine whether the threshold condition is met; If so, any SSB that satisfies the threshold condition is determined as the SSB to be configured; If not, any one of the SSBs is determined to be the SSB to be configured; After determining the RA-TYPE to be configured based on the association information between the SSB to be configured and the RA-TYPE, and before completing the configuration of the random access channel based on the SSB to be configured and the RA-TYPE to be configured, the method further includes: Detect whether the initial RA-TYPE is the same as the RA-TYPE to be configured; If not, change the initial RA-TYPE to the RA-TYPE to be configured.

4. The method according to claim 2, characterized in that, The step of determining the SSB to be configured based on the first threshold condition and the second threshold condition includes: Determine whether the first threshold condition is met; If the first threshold condition is met, any SSB that meets the first threshold condition will be determined as the SSB to be configured. If the first threshold condition is not met, determine whether the second threshold condition is met; If the second threshold condition is met, any SSB that meets the second threshold condition will be determined as the SSB to be configured. If the second threshold condition is not met, any one of the SSBs will be determined as the SSB to be configured.

5. The method according to any one of claims 2 to 4, characterized in that, Before configuring the random access channel based on the SSB to be configured and the RA-TYPE to be configured, after determining the RA-TYPE to be configured based on the association information and the SSB to be configured, the method further includes: If the RA-TYPE to be configured is a 4-step RA, determine whether the SS-RSRP of the SSB to be configured is greater than the preset reference signal received power threshold msgA-RSRP-Threshold; If so, update the RA-TYPE to be configured to the RA of step 2.

6. The method according to claim 1, characterized in that, The association information is indicated by a mask, wherein the length of the mask is the number of SSBs, and one mask corresponds to a pre-set association relationship, which is a mapping relationship between the SSB and the RA-TYPE.

7. A configuration apparatus for a random access channel, characterized in that, include: A receiving module is configured to receive Radio Resource Management (RRC) messages, wherein the RRC message carries association information between a Service Block (SSB) and a Random Access Type (RA-TYPE), wherein the RA-TYPE includes a 2-step random access RA and a 4-step RA, and the association information is represented in the form of a bitmap, wherein the length of the bitmap is the number of SSBs, each bit of the bitmap corresponds to one SSB, and the value of the bit indicates whether the RA-TYPE corresponding to the SSB is a 2-step RA or a 4-step RA; The selection module is used to determine the SSB to be configured and to determine the RA-TYPE to be configured based on the association information between the SSB to be configured and the RA-TYPE. The configuration module is used to configure the random access channel according to the SSB to be configured and the RA-TYPE to be configured determined by the selection module.

8. An electronic device, characterized in that, include: At least one processor; as well as, A memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor to enable the at least one processor to perform the random access channel configuration method as described in any one of claims 1 to 6.

9. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by the processor, it implements the configuration method of the random access channel according to any one of claims 1 to 6.

Images