Random access method, device, apparatus and storage medium

Abstract

The embodiment of the present application provides a random access method, device, apparatus and storage medium, which are applied to a terminal device, and the method includes: determining a target random access channel opportunity RO for initiating random access; and determining a target initial uplink bandwidth part BWP according to the target RO. Through the random access method, device, apparatus and storage medium provided by the embodiment of the present application, the terminal device determines its corresponding target initial uplink BWP according to the selected target RO, so that the target RO selected by the terminal device can always be within the frequency domain range of its initial uplink BWP, avoiding the RedCap UE from being unable to initiate random access on the RO with the best channel condition, ensuring the reliability of random access, and improving the success rate of random access.

Description

Technical Field

[0001] The present application relates to the field of wireless communication technology, and in particular to a random access method, device, apparatus and storage medium. Background Art

[0002] In the 5G NR (New Radio) system, as technology evolves, it is necessary to support a terminal with reduced capabilities, namely RedCap (Reduced Capability) UE (User Equipment). Compared with ordinary UE, RedCap UE aims to reduce the implementation complexity and cost of the terminal. Therefore, the maximum bandwidth supported by RedCap UE will be smaller than the maximum bandwidth supported by ordinary UE. For example, when the carrier frequency is below 6GHz, the maximum bandwidth supported by ordinary UE can be 100MHz, while the maximum bandwidth supported by RedCap UE may be only 20MHz.

[0003] Regardless of the type of UE, it is necessary to initiate random access to the network device (such as gNB (next Generation Node B)) to obtain the communication service provided by the network device. Specifically, taking the four-step random access as an example, the UE measures the SSB (Synchronization Signal Block) sent by the gNB, selects the RO (RACH (Random Access Channel) occasion) corresponding to the SSB with better signal strength (the RSRP (Reference Signal Received Power) measured by the SSB is greater than the predefined threshold value), and sends PRACH (Physical Random Access Channel) on the RO as the first step of random access. The frequency domain range of all ROs is included in the frequency domain range of the initial UL BWP (initial Uplink Bandwidth Part). However, due to the small bandwidth of the RedCap UE, its maximum bandwidth may be smaller than the initial UL BWP bandwidth. At this time, the following problems will exist:

[0004] (1) If the RedCap UE still uses the RO used by the ordinary UE, it is possible that the RO selected by the RedCap UE is outside its own frequency band, resulting in the inability to select the optimal RO to send PRACH.

[0005] (2) If the maximum bandwidth of the RedCap UE is smaller than the initial UL BWP bandwidth, it may not work correctly in the initial UL BWP. Summary of the invention

[0006] In view of the problems existing in the prior art, the embodiments of the present application provide a random access method, device, apparatus and storage medium.

[0007] In a first aspect, an embodiment of the present application provides a random access method, applied to a terminal device, the method comprising:

[0008] Determining a target random access channel opportunity RO for initiating random access;

[0009] According to the target RO, a target initial uplink bandwidth part BWP is determined.

[0010] Optionally, the method further comprises:

[0011] receiving configuration information of at least one initial uplink BWP candidate and configuration information of at least one RO sent by a network device;

[0012] The determining a target initial uplink bandwidth part BWP according to the target RO includes:

[0013] The target initial uplink BWP is determined from the at least one initial uplink BWP candidate according to the determined target RO.

[0014] Optionally, the sets of ROs corresponding to the initial uplink BWP candidates do not overlap;

[0015] The determining, according to the determined target RO, the target initial uplink BWP from the at least one initial uplink BWP candidate comprises:

[0016] The target initial uplink BWP is determined according to the determined initial uplink BWP candidate corresponding to the target RO.

[0017] Optionally, the sets of ROs corresponding to the initial uplink BWP candidates do not overlap, and the ROs corresponding to the same synchronization signal block SSB correspond to the same initial uplink BWP candidate;

[0018] The determining, according to the determined target RO, the target initial uplink BWP from the at least one initial uplink BWP candidate comprises:

[0019] The target initial uplink BWP is determined according to the determined initial uplink BWP candidate corresponding to the target RO.

[0020] Optionally, there is overlap between sets of ROs corresponding to the initial uplink BWP candidates;

[0021] The determining, according to the determined target RO, the target initial uplink BWP from the at least one initial uplink BWP candidate comprises any one of the following:

[0022] Determine at least one initial uplink BWP candidate corresponding to the target RO, and determine the target initial uplink BWP according to the priorities corresponding to the initial uplink BWP candidates;

[0023] Determine at least one initial uplink BWP candidate corresponding to the target RO, and determine the target initial uplink BWP according to the starting frequency and / or center frequency respectively corresponding to each initial uplink BWP candidate;

[0024] The target initial uplink BWP is determined according to first indication information corresponding to the target RO, where the first indication information is used to indicate an initial uplink BWP candidate uniquely corresponding to each RO.

[0025] Optionally, the RO corresponding to the initial uplink BWP candidate is an RO whose frequency domain range is included in the frequency domain range of the initial uplink BWP candidate.

[0026] Optionally, determining a target initial uplink bandwidth part BWP according to the target RO includes any one of the following:

[0027] Determine a starting frequency or a center frequency corresponding to the target RO, and determine a target initial uplink BWP according to the starting frequency or the center frequency; wherein the center frequency of the frequency domain range corresponding to the target initial uplink BWP is the same as the starting frequency or the center frequency corresponding to the target RO, and the frequency domain width of the frequency domain range corresponding to the target initial uplink BWP is indicated by a network device or is predefined;

[0028] Determine the starting frequency corresponding to the target RO, and determine the target initial uplink BWP according to the starting frequency; wherein the starting frequency of the frequency domain range corresponding to the target initial uplink BWP is the same as the starting frequency corresponding to the target RO, and the frequency domain width of the frequency domain range corresponding to the target initial uplink BWP is indicated by the network device or is predefined.

[0029] Optionally, determining a target initial uplink bandwidth part BWP according to the target RO includes any one of the following:

[0030] Determine a starting frequency or a center frequency corresponding to a designated RO corresponding to the target RO, and determine a target initial uplink BWP according to the starting frequency or the center frequency; wherein the center frequency of the frequency domain range corresponding to the target initial uplink BWP is the same as the starting frequency or the center frequency corresponding to the designated RO, and the frequency domain width of the frequency domain range corresponding to the target initial uplink BWP is indicated by a network device or is predefined;

[0031] Determine the starting frequency corresponding to the designated RO corresponding to the target RO, and determine the target initial uplink BWP according to the starting frequency; wherein the starting frequency of the frequency domain range corresponding to the target initial uplink BWP is the same as the starting frequency corresponding to the designated RO, and the frequency domain width of the frequency domain range corresponding to the target initial uplink BWP is indicated by the network device or is predefined.

[0032] In a second aspect, an embodiment of the present application further provides a random access method, which is applied to a network device, and the method includes:

[0033] Determine a target random access channel timing RO for the terminal device to initiate random access;

[0034] According to the target RO, a target initial uplink bandwidth part BWP corresponding to the terminal device is determined.

[0035] Optionally, the method further comprises:

[0036] Sending configuration information of at least one initial uplink BWP candidate and configuration information of at least one RO to the terminal device;

[0037] The determining, according to the target RO, a target initial uplink bandwidth part BWP corresponding to the terminal device includes:

[0038] According to the determined target RO, the target initial uplink BWP corresponding to the terminal device is determined from the at least one initial uplink BWP candidate.

[0039] Optionally, the sets of ROs corresponding to the initial uplink BWP candidates do not overlap;

[0040] The determining, according to the determined target RO, a target initial uplink BWP corresponding to the terminal device from the at least one initial uplink BWP candidate comprises:

[0041] According to the determined initial uplink BWP candidate corresponding to the target RO, the target initial uplink BWP corresponding to the terminal device is determined.

[0042] Optionally, the sets of ROs corresponding to the initial uplink BWP candidates do not overlap, and the ROs corresponding to the same synchronization signal block SSB correspond to the same initial uplink BWP candidate;

[0043] The determining, according to the determined target RO, a target initial uplink BWP corresponding to the terminal device from the at least one initial uplink BWP candidate comprises:

[0044] According to the determined initial uplink BWP candidate corresponding to the target RO, the target initial uplink BWP corresponding to the terminal device is determined.

[0045] Optionally, there is overlap between sets of ROs corresponding to the initial uplink BWP candidates;

[0046] The determining, according to the determined target RO, the target initial uplink BWP corresponding to the terminal device from the at least one initial uplink BWP candidate includes any one of the following:

[0047] Determine at least one initial uplink BWP candidate corresponding to the target RO, and determine the target initial uplink BWP corresponding to the terminal device according to the priorities corresponding to the initial uplink BWP candidates;

[0048] Determine at least one initial uplink BWP candidate corresponding to the target RO, and determine the target initial uplink BWP corresponding to the terminal device according to the starting frequency and / or the center frequency respectively corresponding to each initial uplink BWP candidate;

[0049] The target initial uplink BWP corresponding to the terminal device is determined according to the first indication information corresponding to the target RO, where the first indication information is used to indicate an initial uplink BWP candidate uniquely corresponding to each RO.

[0050] Optionally, the RO corresponding to the initial uplink BWP candidate is an RO whose frequency domain range is included in the frequency domain range of the initial uplink BWP candidate.

[0051] Optionally, determining a target initial uplink bandwidth part BWP corresponding to the terminal device according to the target RO includes any one of the following:

[0052] Determine a starting frequency or a center frequency corresponding to the target RO, and determine a target initial uplink BWP corresponding to the terminal device according to the starting frequency or the center frequency; wherein the center frequency of the frequency domain range corresponding to the target initial uplink BWP is the same as the starting frequency or the center frequency corresponding to the target RO, and the frequency domain width of the frequency domain range corresponding to the target initial uplink BWP is indicated to the terminal device by the network device or is predefined;

[0053] Determine the starting frequency corresponding to the target RO, and determine the target initial uplink BWP corresponding to the terminal device according to the starting frequency; wherein the starting frequency of the frequency domain range corresponding to the target initial uplink BWP is the same as the starting frequency corresponding to the target RO, and the frequency domain width of the frequency domain range corresponding to the target initial uplink BWP is indicated to the terminal device by the network device or is predefined.

[0054] Optionally, determining a target initial uplink bandwidth part BWP corresponding to the terminal device according to the target RO includes any one of the following:

[0055] Determine a starting frequency or a center frequency corresponding to a designated RO corresponding to the target RO, and determine a target initial uplink BWP corresponding to the terminal device according to the starting frequency or the center frequency; wherein the center frequency of the frequency domain range corresponding to the target initial uplink BWP is the same as the starting frequency or the center frequency corresponding to the designated RO, and the frequency domain width of the frequency domain range corresponding to the target initial uplink BWP is indicated to the terminal device by the network device or is predefined;

[0056] Determine the starting frequency corresponding to the designated RO corresponding to the target RO, and determine the target initial uplink BWP corresponding to the terminal device according to the starting frequency; wherein the starting frequency of the frequency domain range corresponding to the target initial uplink BWP is the same as the starting frequency corresponding to the designated RO, and the frequency domain width of the frequency domain range corresponding to the target initial uplink BWP is indicated to the terminal device by the network device or is predefined.

[0057] In a third aspect, an embodiment of the present application further provides a terminal device, including a memory, a transceiver, and a processor, wherein:

[0058] A memory for storing a computer program; a transceiver for sending and receiving data under the control of the processor; and a processor for reading the computer program in the memory and implementing the steps of the random access method as described in the first aspect above.

[0059] In a fourth aspect, an embodiment of the present application further provides a network device, including a memory, a transceiver, and a processor, wherein:

[0060] A memory for storing a computer program; a transceiver for sending and receiving data under the control of the processor; and a processor for reading the computer program in the memory and implementing the steps of the random access method described in the second aspect as described above.

[0061] In a fifth aspect, an embodiment of the present application further provides a random access device, applied to a terminal device, the device comprising:

[0062] A first determining unit, configured to determine a target random access channel opportunity RO for initiating random access;

[0063] The second determining unit is configured to determine a target initial uplink bandwidth part BWP according to the target RO.

[0064] In a sixth aspect, an embodiment of the present application further provides a random access device, applied to a network device, the device comprising:

[0065] A third determining unit, configured to determine a target random access channel opportunity RO for the terminal device to initiate random access;

[0066] The fourth determining unit is used to determine the target initial uplink bandwidth part BWP corresponding to the terminal device according to the target RO.

[0067] In the seventh aspect, an embodiment of the present application also provides a processor-readable storage medium, wherein the processor-readable storage medium stores a computer program, and the computer program is used to enable the processor to execute the steps of the random access method described in the first aspect as described above, or to execute the steps of the random access method described in the second aspect as described above.

[0068] The random access method, device, apparatus and storage medium provided in the embodiments of the present application enable the terminal device to determine its corresponding target initial uplink BWP according to the selected target RO, so that the target RO selected by the terminal device is always within the frequency domain of its initial uplink BWP, thereby avoiding the RedCap UE from being unable to initiate random access on the RO with the best channel condition, ensuring the reliability of random access and improving the success rate of random access. BRIEF DESCRIPTION OF THE DRAWINGS

[0069] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0070] Figure 1 It is a schematic diagram of the positions of the initial UL BWP and RO in the frequency domain provided by the prior art;

[0071] Figure 2 This is one of the flow diagrams of the random access method provided in the embodiment of the present application;

[0072] Figure 3 This is one of the implementation diagrams of the random access method provided in the embodiment of the present application;

[0073] Figure 4 This is the second implementation diagram of the random access method provided in the embodiment of the present application;

[0074] Figure 5 This is the third implementation diagram of the random access method provided in the embodiment of the present application;

[0075] Figure 6 This is the fourth implementation diagram of the random access method provided in the embodiment of the present application;

[0076] Figure 7 This is the second flow chart of the random access method provided in the embodiment of the present application;

[0077] Figure 8 is a schematic diagram of the structure of a terminal device provided in an embodiment of the present application;

[0078] Fig. 9 It is a schematic diagram of the structure of a network device provided in an embodiment of the present application;

[0079] Fig.10 This is one of the structural schematic diagrams of the random access device provided in the embodiment of the present application;

[0080] Fig.11 This is the second structural diagram of the random access device provided in the embodiment of the present application. DETAILED DESCRIPTION

[0081] In the embodiments of the present application, the term "and / or" describes the association relationship of the associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0082] In the embodiments of the present application, the term "plurality" refers to two or more than two, and other quantifiers are similar.

[0083] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0084] In the existing NR, the network equipment (such as gNB) broadcasts the SSB, the configuration information of the initial UL BWP and the configuration information of the RO. Among them, the network equipment can send multiple SSBs, and there is a certain mapping relationship between the SSB and the RO, which can be a many-to-one, one-to-one or one-to-many correspondence. The mapping relationship indication information is also included in the RO configuration information.

[0085] Figure 1 The schematic diagram of the location of the initial UL BWP and RO in the frequency domain provided by the prior art. Figure 1 As shown in the figure, there are 8 frequency-divided ROs in the frequency domain, and the 8 ROs correspond to 4 SSBs. The ROs corresponding to different SSBs are distinguished by different patterns (SSBs are not shown in the figure). However, since the bandwidth of the RedCap UE is smaller than the initial UL BWP, a RedCap initial ULBWP may not include all ROs in the frequency domain, which may result in a RedCap UE being unable to select the optimal RO for random access. For example, Figure 1 In the example, assuming that the RedCap initial UL BWP is similar to the existing initial UL BWP, is unique, and has the same center frequency as the existing initial UL BWP, it cannot initiate random access in RO_0, RO_1 or RO_6, RO_7.

[0086] At present, the UE is generally allowed to determine a single public initial UL BWP with a fixed frequency domain range through gNB broadcast configuration; if the RedCap initial UL BWP is implemented in a similar way, it may cause the RO corresponding to the SSB with the best signal received by the RedCap UE to be outside the frequency domain range of the RedCap initial UL BWP, and the RedCap UE cannot initiate random access on the RO with the best channel condition, which reduces the strength of the received and sent signals during random access and also reduces the success rate of random access. At this time, it may be necessary to introduce a new RedCap-exclusive initial UL BWP; but there is currently no method to define a new RedCap-exclusive initial UL BWP.

[0087] In response to the above problems, each embodiment of the present application provides a solution, the core idea of ​​which is: the RedCap UE determines its corresponding RedCap initial UL BWP according to the selected RO; correspondingly, the network device determines the RedCap initial UL BWP of the RedCap UE according to the RO for random access initiated by the RedCap UE, so that the RO selected by the RedCap UE can always be within the frequency domain range of its RedCap initial UL BWP, thereby ensuring the reliability of random access and improving the success rate of random access.

[0088] Figure 2 A schematic diagram of a random access method provided in an embodiment of the present application, wherein the method is applied to a terminal device, such as Figure 2As shown, the method comprises the following steps:

[0089] Step 200: determining a target random access channel opportunity RO for initiating random access;

[0090] Specifically, the terminal device needs to initiate random access to the network device (such as gNB) in order to obtain the communication service provided by the network device. To this end, the terminal device first measures the SSB sent by the network device, and selects the RO corresponding to the SSB with better signal strength (the RSRP measured by the SSB is greater than the predefined threshold value) as the target RO for initiating random access to the network device according to the RO configuration information sent by the network device, so as to send PRACH to the network device on the target RO as the first step of random access. This application mainly takes four-step random access as an example, and the PRACH can be Msg1 (Message 1) in the four-step random access; this application can also be used for two-step random access, in which case the PRACH can be the PRACH in MsgA (Message A) in the two-step random access.

[0091] Step 201: Determine a target initial uplink bandwidth part BWP according to a target RO.

[0092] Specifically, after the terminal device determines the target RO for initiating random access to the network device, it can determine its corresponding initial uplink BWP, i.e., the target initial uplink BWP, based on the target RO. Accordingly, if the network device detects PRACH in the target RO, the network device can determine the target initial uplink BWP corresponding to the terminal device based on the target RO to which the terminal device initiates random access.

[0093] Optionally, after the terminal device determines the target RO and the target initial uplink BWP, its uplink transmission in the random access phase can be performed in the determined target initial uplink BWP. The uplink transmission in the random access phase includes PRACH, Msg3 (Message 3), PUCCH (Physical Uplink Control Channel) feedback to Msg4 (Message 4), or PUSCH (Physical Uplink Shared Channel) in MsgA (specific to the 2-step RACH mode), PUCCH feedback to MsgB (Message B), etc. This method can simplify the transmission of the terminal device in the random access phase, and the terminal device does not need to switch between multiple BWPs in the initial access phase.

[0094] The embodiments of the present application are described by taking the RedCap UE needing to initiate random access to the network device as an example. Of course, those skilled in the art can know that the technical solutions of the embodiments of the present application are not limited to the scenario where the RedCap UE initiates random access, and other types of terminal devices can also be applied, such as narrowband terminals, IoT terminals, etc. For the convenience of subsequent discussion, the embodiments of the present application are only introduced by taking the RedCap UE as an example.

[0095] In the random access method provided in the embodiment of the present application, the terminal device determines its corresponding target initial uplink BWP according to the selected target RO, so that the target RO selected by the terminal device is always within the frequency domain of its initial uplink BWP, thereby avoiding the RedCap UE from being unable to initiate random access on the RO with the best channel condition, ensuring the reliability of random access, and improving the success rate of random access.

[0096] Optionally, the method further comprises:

[0097] receiving configuration information of at least one initial uplink BWP candidate and configuration information of at least one RO sent by a network device;

[0098] Determining the target initial uplink bandwidth part BWP according to the target RO includes:

[0099] According to the determined target RO, a target initial uplink BWP is determined from at least one initial uplink BWP candidate.

[0100] Specifically, before determining the target initial uplink BWP, the terminal device may also receive configuration information of at least one initial uplink BWP candidate and configuration information of at least one RO sent by the network device, thereby determining one of the at least one initial uplink BWP candidates as the target initial uplink BWP according to the determined target RO.

[0101] The network device may send the configuration information in a variety of ways, such as broadcast transmission, unicast or multicast notification, etc. The configuration information of the initial uplink BWP candidate includes at least the frequency domain position of each initial uplink BWP candidate.

[0102] Optionally, in the configuration information of at least one initial uplink BWP candidate sent by the network device, the initial uplink BWP candidates may only have different frequency domain positions, and the rest of the configurations are the same (such as frequency domain width, PUSCH configuration, PUCCH configuration, etc.). For example, the initial uplink BWP candidates share other configuration information except the frequency domain position. This method can reduce the overhead of sending the configuration information of the initial uplink BWP candidate.

[0103] The random access method provided in the embodiment of the present application is that the terminal device can receive the configuration information of at least one initial uplink BWP candidate and the configuration information of at least one RO sent by the network device, so as to determine one of the at least one initial uplink BWP candidates as the target initial uplink BWP according to the determined target RO, thereby avoiding the RedCap UE from being unable to initiate random access on the RO with the best channel condition, ensuring the reliability of random access, and improving the success rate of random access.

[0104] Optionally, the sets of ROs corresponding to the initial uplink BWP candidates do not overlap;

[0105] Determining a target initial uplink BWP from at least one initial uplink BWP candidate according to the determined target RO includes:

[0106] The target initial uplink BWP is determined according to the determined initial uplink BWP candidate corresponding to the target RO.

[0107] Specifically, before determining the target initial uplink BWP, the terminal device may also receive configuration information of at least one initial uplink BWP candidate and configuration information of at least one RO sent by the network device, wherein the sets of ROs corresponding to the initial uplink BWP candidates do not overlap.

[0108] It should be noted that, in each embodiment of the present application, the RO corresponding to each initial uplink BWP candidate refers to an RO whose frequency domain range is included in the frequency domain range of the initial uplink BWP candidate, and accordingly, the initial uplink BWP candidate corresponding to the RO refers to an initial uplink BWP candidate that includes the RO in the frequency domain. Among them, including can be completely included, that is, the frequency domain range of the initial uplink BWP candidate includes the complete RO frequency domain range, or including can also be only partially included, that is, the frequency domain range of the RO is only partially included in the frequency domain range of the initial uplink BWP candidate.

[0109] The sets of ROs corresponding to the initial uplink BWP candidates do not overlap, which means that there is a "many-to-one" correspondence between each RO and each initial uplink BWP candidate. After determining the target RO, the terminal device can determine the target initial uplink BWP according to which initial uplink BWP candidate the target RO is included in in the frequency domain. For example, if the target RO is included in initial uplink BWP candidate 1 in the frequency domain, then the initial uplink BWP candidate 1 is determined as the target initial uplink BWP.

[0110] In the random access method provided by the embodiment of the present application, the sets of ROs corresponding to the initial uplink BWP candidates received by the terminal device do not overlap, so that the terminal device can uniquely determine the target initial uplink BWP according to the determined target RO, thereby improving the efficiency of random access of the terminal device.

[0111] Figure 3 A schematic diagram of an implementation of the random access method provided in the embodiment of the present application is shown in FIG. Figure 3 As shown, the network device sends 4 SSBs (SSB_0, SSB_1, SSB_2, SSB_3), and 8 frequency-divided ROs (RO_0, RO_1, ... RO_7) are configured in the frequency domain. The 8 ROs correspond to the 4 SSBs, SSB_0 corresponds to RO_0 and RO_1, SSB_1 corresponds to RO_2 and RO_3, SSB_2 corresponds to RO_4 and RO_5, SSB_3 corresponds to RO_6 and RO_7, and the ROs corresponding to different SSBs are distinguished by different patterns in the figure, and the SSBs are not drawn in the figure. In addition, the network device broadcasts and sends 3 RedCap initial UL BWP candidate configuration information, namely RedCapinitial UL BWP 0, RedCap initial UL BWP 1 and RedCap initial UL BWP 2. The initial uplink BWP candidate configuration information includes the frequency domain range indication information of each initial uplink BWP candidate, indicating the frequency domain range of each initial uplink BWP candidate. Preferably, the frequency domain width of each initial uplink BWP candidate does not exceed the maximum bandwidth supported by the RedCap UE, so that the RedCap UE can correctly transmit no matter which initial uplink BWP candidate is selected as the target initial uplink BWP.

[0112] Depend on Figure 3 It can be seen that the RO set included in the frequency domain of RedCap initial UL BWP 0 is {RO_0, RO_1, RO_2}, the RO set included in RedCap initial UL BWP 1 is {RO_3, RO_4, RO_5}, and the RO set included in RedCap initial ULBWP 2 is {RO_6, RO_7}. It can be seen that the RO sets included in the three initial uplink BWP candidates are different, and there is no overlap between the sets. Under this method, RO_0, RO_1, RO_2 correspond to RedCap initial UL BWP 0, RO_3, RO_4, RO_5 correspond to RedCap initial UL BWP 1, and RO_6, RO_7 correspond to RedCap initial UL BWP 2.

[0113] If a RedCap UE measures that the RSRP of SSB_0 is greater than a predefined threshold value, it can select RO_0 or RO_1 corresponding to SSB_0 to initiate random access, that is, send PRACH in the selected RO; taking RO_0 as an example, the RedCap UE can determine that its RedCap initial UL BWP is RedCap initial UL BWP 0. Similarly, if another RedCap UE measures that the RSRP of SSB_1 is greater than a predefined threshold value, it can select RO_2 or RO_3 corresponding to SSB_1 to initiate random access. In this case, if the RedCap UE selects RO_2, it also determines RedCap initial UL BWP 0 as its RedCap initial UL BWP. If the RedCap UE selects RO_3, it determines RedCap initial UL BWP 1 as its RedCap initial UL BWP.

[0114] Accordingly, if the gNB detects PRACH in RO_0, the gNB can determine that a RedCap UE initiating random access uses RedCap initial UL BWP 0 as the RedCap initial UL BWP. Similarly, if the gNB detects PRACH in different ROs, it can determine the RedCap initial UL BWP corresponding to a RedCap UE initiating random access.

[0115] Through the method in this embodiment, while satisfying that the RedCap initial UL BWP does not exceed the RedCap UE bandwidth, the RedCap UE can always select the best RO based on the SSB measurement result to initiate random access, thereby ensuring the signal quality of the random access channel and improving the success rate of random access. The "many-to-one" correspondence between the RO and the RedCap initial UL BWP candidates also enables the gNB to always uniquely determine the RedCap initial UL BWP of the RedCap UE initiating random access based on the RO received from the PRACH, reducing the implementation complexity of the gNB.

[0116] In addition, the premise of the "many-to-one" correspondence is that multiple ROs correspond to the same RedCapinitial UL BWP candidate in the frequency domain. It is also possible that one RO corresponds to the same RedCap initial UL BWP candidate, in which case it is a "one-to-one" correspondence. Under the "one-to-one" correspondence, the analysis in this embodiment is also applicable.

[0117] Optionally, the sets of ROs corresponding to the initial uplink BWP candidates do not overlap, and the ROs corresponding to the same synchronization signal block SSB correspond to the same initial uplink BWP candidate;

[0118] Determining a target initial uplink BWP from at least one initial uplink BWP candidate according to the determined target RO includes:

[0119] The target initial uplink BWP is determined according to the determined initial uplink BWP candidate corresponding to the target RO.

[0120] Specifically, before determining the target initial uplink BWP, the terminal device can also receive the configuration information of at least one initial uplink BWP candidate and the configuration information of at least one RO sent by the network device, wherein the sets of ROs corresponding to the initial uplink BWP candidates do not overlap, and if one SSB corresponds to at least one RO, then at least one RO corresponding to the same SSB is included in the same initial uplink BWP candidate. This indicates that not only is there a "many-to-one" correspondence between each RO and each initial uplink BWP candidate, but there is also a "many-to-one" correspondence between each SSB and each initial uplink BWP candidate.

[0121] After determining the target RO, the terminal device can determine the target initial uplink BWP according to which initial uplink BWP candidate the target RO is included in in the frequency domain. For example, if the target RO is included in initial uplink BWP candidate 2 in the frequency domain, the initial uplink BWP candidate 2 is determined as the target initial uplink BWP.

[0122] In the random access method provided by the embodiment of the present application, the sets of ROs corresponding to the initial uplink BWP candidates received by the terminal device do not overlap, and the ROs corresponding to the same SSB are included in the same initial uplink BWP candidate, so that the terminal device can uniquely determine the target initial uplink BWP according to the determined target RO, thereby improving the efficiency of random access of the terminal device and simplifying the uplink and downlink beam relationships that the network device needs to maintain in the initial uplink BWP.

[0123] Figure 4 A schematic diagram of an implementation of the random access method provided in the embodiment of the present application is shown in FIG. Figure 4 As shown, it is assumed that there are 2 initial uplink BWP candidates (RedCap initial UL BWP 0 and RedCap initial UL BWP 1). Figure 3 The difference from the corresponding embodiment is that there is an additional restriction in this embodiment: if one SSB corresponds to multiple ROs, then the multiple ROs corresponding to the same SSB must be included in the same initial uplink BWP candidate.

[0124] Figure 4 In the figure, each SSB corresponds to two ROs (such as SSB_0 corresponds to RO_0 and RO_1, SSB_1 corresponds to RO_2 and RO_3, SSB_2 corresponds to RO_4 and RO_5, SSB_3 corresponds to RO_6 and RO_7, ROs corresponding to different SSBs are distinguished by different patterns in the figure, and SSBs are not drawn in the figure), then the two ROs corresponding to the same SSB are included in the same initial uplink BWP candidate, and there will not be a situation where one of the two ROs corresponding to the same SSB is included in RedCap initial UL BWP 0 and the other is included in RedCap initial UL BWP 1. In this case, not only is there a "many-to-one" correspondence between ROs and RedCap initial UL BWP candidates, but there is also (implicitly) a "many-to-one" correspondence between SSBs and RedCap initial UL BWP candidates.

[0125] In addition, compared with the present embodiment Figure 3 The corresponding embodiment has an additional beneficial effect: there is a corresponding relationship between the transmission beams between the gNB and the UE in the form of uplink and downlink beam pairs. In the initial access phase, the downlink beam is represented by the SSB sent by the gNB, and the uplink beam is represented by the PRACH, Msg3, etc. sent by the UE. This method can simplify the uplink and downlink beam relationship that the gNB needs to maintain in the RedCapinitial UL BWP, and the gNB does not need to maintain the downlink beam corresponding to the same SSB in different initial uplink BWP candidates.

[0126] In addition, the premise of the "many-to-one" correspondence is that multiple ROs correspond to the same RedCapinitial UL BWP candidate in the frequency domain, or multiple SSBs correspond to the same RedCap initial UL BWP candidate. It is also possible that one RO corresponds to the same RedCap initial UL BWP candidate, or one SSB corresponds to the same RedCapinitial UL BWP. In this case, it is a "one-to-one" correspondence. Under the "one-to-one" correspondence, the analysis in this embodiment is also applicable.

[0127] Optionally, there is overlap between the sets of ROs corresponding to the initial uplink BWP candidates;

[0128] The determining, according to the determined target RO, a target initial uplink BWP from at least one initial uplink BWP candidate includes any one of the following:

[0129] Determine at least one initial uplink BWP candidate corresponding to the target RO, and determine the target initial uplink BWP according to the priorities corresponding to the initial uplink BWP candidates;

[0130] Determine at least one initial uplink BWP candidate corresponding to the target RO, and determine the target initial uplink BWP according to the starting frequency and / or center frequency respectively corresponding to each initial uplink BWP candidate;

[0131] The target initial uplink BWP is determined according to the first indication information corresponding to the target RO, where the first indication information is used to indicate an initial uplink BWP candidate uniquely corresponding to each RO.

[0132] Specifically, before determining the target initial uplink BWP, the terminal device may also receive configuration information of at least one initial uplink BWP candidate and configuration information of at least one RO sent by the network device, wherein there is overlap between the sets of ROs corresponding to the initial uplink BWP candidates. This indicates that there may be a "many-to-many" correspondence relationship or a "one-to-many" correspondence relationship between each RO and each initial uplink BWP candidate.

[0133] Since one RO may be included in two initial uplink BWP candidates in the frequency domain at the same time (of course, it is also possible that some ROs correspond to only one initial uplink BWP candidate, in which case the target initial uplink BWP can be uniquely determined), after the terminal device determines the target RO, it cannot uniquely determine the target initial uplink BWP based only on which initial uplink BWP candidate the target RO is included in in the frequency domain.

[0134] In this case, the terminal device can determine the target initial uplink BWP according to the selection priorities corresponding to each initial uplink BWP candidate. For example, if the target RO is included in both the initial uplink BWP candidate 1 and the initial uplink BWP candidate 2 in the frequency domain, and the selection priority of the initial uplink BWP candidate 1 is higher than that of the initial uplink BWP candidate 2, the initial uplink BWP candidate 1 is determined as the target initial uplink BWP.

[0135] The selection priorities respectively corresponding to the initial uplink BWP candidates may be sent by the network device to the terminal device.

[0136] Optionally, the terminal device may also determine the target initial uplink BWP according to the starting frequency and / or center frequency corresponding to each initial uplink BWP candidate. For example, if the target RO is included in both the initial uplink BWP candidate 1 and the initial uplink BWP candidate 2 in the frequency domain, the initial uplink BWP candidate 1 with the lowest starting frequency is determined as the target initial uplink BWP. Of course, the initial uplink BWP candidate with the highest starting frequency, the lowest center frequency, or the highest center frequency may also be determined as the target initial uplink BWP.

[0137] It should be noted that the above examples of determining the target initial uplink BWP based on the starting frequency or the center frequency are not exhaustive, and there may be multiple determination rules, such as stipulating that the initial uplink BWP candidate with a smaller index value has a higher priority. The specific rule based on which the determination is made can be predefined to allow the terminal device to determine its own target initial uplink BWP from at least one initial uplink BWP candidate.

[0138] Optionally, the terminal device may also determine its own target initial uplink BWP according to the first indication information sent by the receiving network device, wherein the first indication information indicates an initial uplink BWP candidate uniquely corresponding to each RO.

[0139] Since each RO is indicated to have a unique corresponding initial uplink BWP candidate, after determining the target RO, the terminal device can determine the initial uplink BWP candidate uniquely corresponding to the target RO as the target initial uplink BWP, even if the target RO may be included in multiple initial uplink BWP candidates in the frequency domain. For example, although the target RO is included in both initial uplink BWP candidate 1 and initial uplink BWP candidate 2 in the frequency domain, the network device indicates that the target RO corresponds to initial uplink BWP candidate 1, and the terminal device can determine initial uplink BWP candidate 1 as the target initial uplink BWP.

[0140] In the random access method provided in the embodiment of the present application, the sets of ROs corresponding to the initial uplink BWP candidates received by the terminal device can overlap, thereby reducing the configuration restrictions on the initial uplink BWP candidates and improving the configuration flexibility.

[0141] Figure 5 A schematic diagram of an implementation of the random access method provided in the embodiment of the present application is shown in FIG. Figure 5 As shown, Figure 3 or Figure 4 The difference from the corresponding embodiment is that in this embodiment, there is no "many-to-one" or "one-to-one" constraint relationship between the RO and the initial uplink BWP candidate. The same RO can correspond to multiple initial uplink BWP candidates, and the RO sets included in the initial uplink BWP candidate in the frequency domain may overlap.

[0142] In this embodiment, if the selected RO corresponds to multiple initial uplink BWP candidates, the RedCap UE needs to determine one of the multiple initial uplink BWP candidates as the RedCap initial UL BWP in addition to selecting the RO. The available methods are:

[0143] (1) The gNB broadcasts the selection priority among the initial uplink BWP candidates.

[0144] For example, the gNB may broadcast a priority order between initial uplink BWP candidates, such as 0>1>2, and the priority order may be used for all ROs, and the UE may determine the RedCap initial UL BWP according to the priority order. For example, if the RedCap UE selects RO_2, the RedCap UE determines RedCap initial UL BWP 0 as its initial uplink BWP; if the RedCap UE selects RO_4, the RedCap UE determines RedCap initial UL BWP 1 as its initial uplink BWP. Since the priority is common to the RO, the indication overhead is small.

[0145] (2) Through a predefined method, such as RedCap UE selects the initial uplink BWP candidate with the lowest / highest frequency at the starting / center frequency domain position.

[0146] This method does not require the gNB to broadcast additional information, but through predefined rules, the UE can determine its own initial uplink BWP from multiple initial uplink BWP candidates. For example, it can be stipulated that the RedCap UE always selects the initial uplink BWP candidate with the lowest starting position frequency among the multiple initial uplink BWP candidates overlapping with the selected RO as its RedCap initialUL BWP. Under this predefined method, if the RedCap UE selects RO_3, RO_3 corresponds to RedCap initial UL BWP0 and RedCap initial UL BWP 1. Since the starting frequency position of RedCap initial UL BWP 0 is lower than that of RedCap initial UL BWP 1, the UE determines RedCap initial UL BWP 0 as its initial uplink BWP. Similarly, it can also be extended to select based on the center frequency position of the initial uplink BWP candidate, or select the initial uplink BWP candidate with the highest frequency at the starting / center frequency domain position, and so on.

[0147] (3) The gNB broadcasts the RedCap initial UL BWP corresponding to each RO.

[0148] Similar to (1), the gNB can broadcast the RedCapinitial UL BWP corresponding to each RO (corresponding to multiple initial uplink BWP candidates). For example, the gNB can indicate that RO_2 corresponds to RedCap initial UL BWP 0, and RO_3 corresponds to RedCap initial UL BWP 1. Since the indication of the initial uplink BWP candidate is required for each RO (corresponding to multiple initial uplink BWP candidates), the indication overhead is larger than (1), but the indication is also more flexible.

[0149] The method in this embodiment has the least restrictions on the configuration of RedCap initial UL BWP candidates and is the most flexible in configuration, but an additional method is required to handle the possible situation of "one RO corresponds to multiple initial uplink BWP candidates".

[0150] Optionally, determining a target initial uplink bandwidth part BWP according to the target RO includes any one of the following:

[0151] Determine a starting frequency or a center frequency corresponding to the target RO, and determine a target initial uplink BWP according to the starting frequency or the center frequency; wherein the center frequency of the frequency domain range corresponding to the target initial uplink BWP is the same as the starting frequency or the center frequency corresponding to the target RO, and the frequency domain width of the frequency domain range corresponding to the target initial uplink BWP is indicated by the network device or is predefined;

[0152] Determine the starting frequency corresponding to the target RO, and determine the target initial uplink BWP according to the starting frequency; wherein the starting frequency of the frequency domain range corresponding to the target initial uplink BWP is the same as the starting frequency corresponding to the target RO, and the frequency domain width of the frequency domain range corresponding to the target initial uplink BWP is indicated by the network device or is predefined.

[0153] Specifically, after the terminal device determines the target RO for initiating random access to the network device, it can determine the frequency domain range of its corresponding target initial uplink BWP according to the frequency domain range of the target RO and predefined rules.

[0154] For example, the center frequency of the frequency domain range corresponding to the target initial uplink BWP can be predefined to be the same as a frequency corresponding to the target RO, such as the center frequency of the frequency domain range corresponding to the target initial uplink BWP can be predefined to be the same as the center frequency corresponding to the target RO, or the center frequency of the frequency domain range corresponding to the target initial uplink BWP can be predefined to be the same as the starting frequency corresponding to the target RO, or the center frequency of the frequency domain range corresponding to the target initial uplink BWP can be predefined to be the same as other frequencies corresponding to the target RO.

[0155] For another example, the starting frequency of the frequency domain range corresponding to the target initial uplink BWP can be predefined to be the same as the starting frequency corresponding to the target RO, and the ending frequency of the frequency domain range corresponding to the target initial uplink BWP can also be predefined to be the same as the ending frequency corresponding to the target RO, and so on.

[0156] It should be noted that the above-mentioned frequency being the same may mean that the frequencies are completely equal, or that the frequencies are not completely equal, and there is a certain offset. For example, the center frequency of the target RO is the same as the center frequency of the target initial uplink BWP, which may mean that "the center frequency of the target RO" + "a predefined / notified offset value" = "the center frequency of the target initial uplink BWP".

[0157] In addition, the frequency domain width of the frequency domain range corresponding to the target initial uplink BWP may be indicated by a network device, such as sent by the network device to the terminal device via broadcast, or may be predefined. It should be noted that the frequency domain width of the frequency domain range corresponding to the target initial uplink BWP may be fixed or may have different frequency domain widths depending on the target RO.

[0158] In the random access method provided by the embodiment of the present application, the frequency domain range of the target initial uplink BWP can be determined according to the frequency domain range of the target RO, without the need for the network device to indicate the frequency domain range of the initial uplink BWP candidate, thereby reducing the overhead of the network device sending configuration information.

[0159] Optionally, determining a target initial uplink bandwidth part BWP according to the target RO includes any one of the following:

[0160] Determine a starting frequency or a center frequency corresponding to a designated RO corresponding to a target RO, and determine a target initial uplink BWP according to the starting frequency or the center frequency; wherein the center frequency of a frequency domain range corresponding to the target initial uplink BWP is the same as the starting frequency or the center frequency corresponding to the designated RO, and the frequency domain width of the frequency domain range corresponding to the target initial uplink BWP is indicated by a network device or is predefined;

[0161] Determine the starting frequency corresponding to the designated RO corresponding to the target RO, and determine the target initial uplink BWP according to the starting frequency; wherein the starting frequency of the frequency domain range corresponding to the target initial uplink BWP is the same as the starting frequency corresponding to the designated RO, and the frequency domain width of the frequency domain range corresponding to the target initial uplink BWP is indicated by the network device or is predefined.

[0162] Specifically, the designated RO refers to an RO that is predefined or indicated by a network device and is used to determine a target initial uplink BWP frequency domain range.

[0163] Different from the above-mentioned embodiment, in the above-mentioned embodiment, all ROs can be ROs used to determine the frequency domain range of the target initial uplink BWP, while in the present embodiment, only some ROs (i.e., a subset of all ROs with different frequency domain positions) are designated ROs. In this case, after the terminal device determines the target RO for initiating random access to the network device, it is necessary to first determine the designated RO in the RO set based on the RO set where the target RO is located. For example, the RO set where the target RO is located can be a set of multiple ROs corresponding to the same SSB, and there is at least one designated RO in the RO set. Then, the frequency domain range of the target initial uplink BWP corresponding to the terminal device can be determined based on the frequency domain range of the designated RO and predefined rules.

[0164] In the random access method provided in the embodiment of the present application, the frequency domain range of the target initial uplink BWP can be determined according to the frequency domain range of the designated RO corresponding to the target RO, without the need for the network device to indicate the frequency domain range of the initial uplink BWP candidate, thereby reducing the overhead of the network device sending configuration information.

[0165] Figure 6 A schematic diagram of an implementation of the random access method provided in the embodiment of the present application is shown in FIG. Figure 6 As shown in the figure, the network device sends 4 SSBs (SSB_0, SSB_1, SSB_2, SSB_3), and 4 frequency-divided ROs (RO_0, RO_1, RO_2, RO_3) are configured in the frequency domain. The 4 ROs correspond to the 4 SSBs, SSB_0 corresponds to RO_0, SSB_1 corresponds to RO_1, SSB_2 corresponds to RO_2, SSB_3 corresponds to RO_3, and SSB is not drawn in the figure. ROs corresponding to different SSBs are distinguished by different patterns in the figure.

[0166] and Figure 3-Figure 5 The difference between the corresponding embodiments is that the network device does not indicate the frequency domain range of the RedCap initial UL BWP, that is, at least one of the "frequency domain position" or "frequency domain width" of the initial uplink BWP candidate is not directly indicated by the network device. The frequency domain range of the initial uplink BWP candidate can be determined according to a specific RO. In this embodiment, it is assumed that all ROs with different frequency domain positions are all specific ROs that can be used to determine the initial uplink BWP candidate.

[0167] like Figure 6As shown, in this embodiment, each RO with different frequency domain positions corresponds to a RedCap initial ULBWP candidate. The frequency domain center position of each RO is the frequency domain center position of its corresponding RedCap initial UL BWP candidate; the frequency domain width of the initial uplink BWP candidate is predefined, and the frequency domain width of each initial uplink BWP candidate is the same, for example, the width is predefined as 20MHz in frequency domain range 1 (Frequency Range 1, FR1, referring to the frequency band below 6GHz) and the width is 100MHz in FR2 (Frequency Range 2, referring to the millimeter wave frequency band).

[0168] Through the method in this embodiment, if the RedCap UE selects a certain RO, the frequency domain range of the RedCap initial UL BWP corresponding to the RedCap UE can be determined according to the frequency domain information of the RO and the predefined rules. For example, if the RedCap UE selects RO_0 for access, it can also determine the frequency domain range of its corresponding RedCap initial UL BWP0 according to RO_0; the network device is similar. If the PRACH sent by the RedCap UE is detected in RO_0, the gNB can determine the frequency domain range of the initial uplink BWP of a RedCap UE that initiates random access, that is, RedCap initial UL BWP 0.

[0169] In another embodiment, the specific RO may also be a subset of all ROs with different frequency domain positions, for example, it may be a RO subset determined in a predefined manner (such as the one with the lowest frequency among multiple ROs corresponding to the same SSB), or it may be a RO subset indicated by a network device broadcast; the frequency domain position of the initial uplink BWP candidate may also have other determination or correspondence methods, for example, the frequency domain starting position of the initial uplink BWP candidate is the same as the starting position of the RO; the frequency domain width of the initial uplink BWP candidate may also be indicated by a network device broadcast, or may even be indicated separately for each initial uplink BWP candidate, that is, the frequency domain width of the initial uplink BWP candidate may not be unified or common, but independent.

[0170] Figure 7 A schematic diagram of a random access method provided in an embodiment of the present application, wherein the method is applied to a network device, such as Figure 7 As shown, the method comprises the following steps:

[0171] Step 700: determining a target random access channel opportunity RO for the terminal device to initiate random access;

[0172] Specifically, the terminal device needs to initiate random access to the network device (such as gNB) in order to obtain the communication service provided by the network device. To this end, the terminal device first measures the SSB sent by the network device, and selects the RO corresponding to the SSB with better signal strength (the RSRP measured by the SSB is greater than the predefined threshold value) as the target RO for initiating random access to the network device according to the RO configuration information sent by the network device, and sends PRACH to the network device on the target RO as the first step of random access. Accordingly, if the network device detects PRACH in the target RO, the network device can determine the target RO selected by the terminal device that initiated the random access.

[0173] Step 701: Determine the target initial uplink bandwidth part BWP corresponding to the terminal device according to the target RO.

[0174] Specifically, after the network device determines the target RO selected by the terminal device initiating random access, it can determine the initial uplink BWP corresponding to the terminal device, that is, the target initial uplink BWP, according to the target RO.

[0175] In the random access method provided in the embodiment of the present application, the network device determines the target RO selected by the terminal device according to the RO detected by the PRACH, and determines the target initial uplink BWP corresponding to the terminal device according to the target RO, so that the target RO selected by the terminal device is always within the frequency domain of the target initial uplink BWP, thereby avoiding the RedCap UE from being unable to initiate random access on the RO with the best channel condition, ensuring the reliability of random access, and improving the success rate of random access.

[0176] Optionally, the method further comprises:

[0177] Sending configuration information of at least one initial uplink BWP candidate and configuration information of at least one RO to the terminal device;

[0178] According to the target RO, the target initial uplink bandwidth part BWP corresponding to the terminal device is determined, including:

[0179] According to the determined target RO, a target initial uplink BWP corresponding to the terminal device is determined from at least one initial uplink BWP candidate.

[0180] Specifically, before determining the target initial uplink BWP, the network device may also send configuration information of at least one initial uplink BWP candidate and configuration information of at least one RO to the terminal device, so that the terminal device determines one of the at least one initial uplink BWP candidate as the target initial uplink BWP according to the determined target RO. Correspondingly, the network device also determines one of the at least one initial uplink BWP candidate as the target initial uplink BWP according to the determined target RO.

[0181] The network device may send the configuration information in a variety of ways, such as broadcast transmission, unicast or multicast notification, etc. The configuration information of the initial uplink BWP candidates at least includes the frequency domain position of each initial uplink BWP candidate.

[0182] Optionally, in the configuration information of at least one initial uplink BWP candidate sent by the network device, the initial uplink BWP candidates may only have different frequency domain positions, and the rest of the configurations are the same (such as frequency domain width, PUSCH configuration, PUCCH configuration, etc.). For example, the initial uplink BWP candidates share other configuration information except the frequency domain position. This method can reduce the overhead of sending the configuration information of the initial uplink BWP candidate.

[0183] In the random access method provided in the embodiment of the present application, the network device can send configuration information of at least one initial uplink BWP candidate and configuration information of at least one RO to the terminal device, and determine one of the at least one initial uplink BWP candidates as the target initial uplink BWP corresponding to the terminal device according to the determined target RO, thereby avoiding the RedCap UE from being unable to initiate random access on the RO with the best channel condition, ensuring the reliability of random access, and improving the success rate of random access.

[0184] Optionally, the sets of ROs corresponding to the initial uplink BWP candidates do not overlap;

[0185] The step of determining, according to the determined target RO, a target initial uplink BWP corresponding to the terminal device from at least one initial uplink BWP candidate comprises:

[0186] According to the determined initial uplink BWP candidate corresponding to the target RO, the target initial uplink BWP corresponding to the terminal device is determined.

[0187] Specifically, before determining the target initial uplink BWP, the network device may also send configuration information of at least one initial uplink BWP candidate and configuration information of at least one RO to the terminal device, wherein the sets of ROs corresponding to the initial uplink BWP candidates do not overlap.

[0188] It should be noted that, in each embodiment of the present application, the RO corresponding to each initial uplink BWP candidate refers to an RO whose frequency domain range is included in the frequency domain range of the initial uplink BWP candidate, and accordingly, the initial uplink BWP candidate corresponding to the RO refers to an initial uplink BWP candidate that includes the RO in the frequency domain. Among them, including can be completely included, that is, the frequency domain range of the initial uplink BWP candidate includes the complete RO frequency domain range, or including can also be only partially included, that is, the frequency domain range of the RO is only partially included in the frequency domain range of the initial uplink BWP candidate.

[0189] The sets of ROs corresponding to the initial uplink BWP candidates do not overlap, which means that there is a "many-to-one" correspondence between each RO and each initial uplink BWP candidate. After determining the target RO, the network device can determine the target initial uplink BWP according to which initial uplink BWP candidate the target RO is included in in the frequency domain. For example, if the target RO is included in initial uplink BWP candidate 1 in the frequency domain, then the initial uplink BWP candidate 1 is determined as the target initial uplink BWP.

[0190] In the random access method provided by the embodiment of the present application, the sets of ROs corresponding to the initial uplink BWP candidates sent by the network device to the terminal device do not overlap, so that the terminal device and the network device can uniquely determine the target initial uplink BWP according to the determined target RO, thereby improving the efficiency of random access.

[0191] Optionally, the sets of ROs corresponding to the initial uplink BWP candidates do not overlap, and the ROs corresponding to the same synchronization signal block SSB correspond to the same initial uplink BWP candidate;

[0192] The step of determining, according to the determined target RO, a target initial uplink BWP corresponding to the terminal device from at least one initial uplink BWP candidate comprises:

[0193] According to the determined initial uplink BWP candidate corresponding to the target RO, the target initial uplink BWP corresponding to the terminal device is determined.

[0194] Specifically, before determining the target initial uplink BWP, the network device may also send configuration information of at least one initial uplink BWP candidate and configuration information of at least one RO to the terminal device, wherein the sets of ROs corresponding to the initial uplink BWP candidates do not overlap, and if one SSB corresponds to at least one RO, at least one RO corresponding to the same SSB is included in the same initial uplink BWP candidate. This indicates that not only is there a "many-to-one" correspondence between each RO and each initial uplink BWP candidate, but there is also a "many-to-one" correspondence between each SSB and each initial uplink BWP candidate.

[0195] After determining the target RO, the network device can determine the target initial uplink BWP according to which initial uplink BWP candidate the target RO is included in in the frequency domain. For example, if the target RO is included in initial uplink BWP candidate 2 in the frequency domain, the initial uplink BWP candidate 2 is determined as the target initial uplink BWP.

[0196] In the random access method provided by the embodiment of the present application, the sets of ROs corresponding to the initial uplink BWP candidates sent by the network device to the terminal device do not overlap, and the ROs corresponding to the same SSB are included in the same initial uplink BWP candidate, so that the terminal device and the network device can uniquely determine the target initial uplink BWP according to the determined target RO, thereby improving the efficiency of random access and simplifying the uplink and downlink beam relationships that the network device needs to maintain in the initial uplink BWP.

[0197] Optionally, there is overlap between the sets of ROs corresponding to the initial uplink BWP candidates;

[0198] The determining, according to the determined target RO, a target initial uplink BWP corresponding to the terminal device from at least one initial uplink BWP candidate, includes any one of the following:

[0199] Determine at least one initial uplink BWP candidate corresponding to the target RO, and determine the target initial uplink BWP corresponding to the terminal device according to the priorities corresponding to the initial uplink BWP candidates;

[0200] Determine at least one initial uplink BWP candidate corresponding to the target RO, and determine the target initial uplink BWP corresponding to the terminal device according to the starting frequency and / or center frequency respectively corresponding to each initial uplink BWP candidate;

[0201] According to the first indication information corresponding to the target RO, the target initial uplink BWP corresponding to the terminal device is determined, and the first indication information is used to indicate the initial uplink BWP candidate uniquely corresponding to each RO.

[0202] Specifically, before determining the target initial uplink BWP, the network device may also send configuration information of at least one initial uplink BWP candidate and configuration information of at least one RO to the terminal device, wherein there is overlap between the sets of ROs corresponding to the initial uplink BWP candidates. This indicates that there may be a "many-to-many" correspondence relationship or a "one-to-many" correspondence relationship between each RO and each initial uplink BWP candidate.

[0203] Since one RO may be included in two initial uplink BWP candidates in the frequency domain at the same time (of course, it is also possible that some ROs correspond to only one initial uplink BWP candidate, in which case the target initial uplink BWP can be uniquely determined), after the terminal device determines the target RO, it cannot uniquely determine the target initial uplink BWP based only on which initial uplink BWP candidate the target RO is included in in the frequency domain.

[0204] In this case, the network device can determine the target initial uplink BWP according to the selection priorities corresponding to the initial uplink BWP candidates. For example, if the target RO is included in both the initial uplink BWP candidate 1 and the initial uplink BWP candidate 2 in the frequency domain, and the selection priority of the initial uplink BWP candidate 1 is higher than that of the initial uplink BWP candidate 2, the initial uplink BWP candidate 1 is determined as the target initial uplink BWP.

[0205] The selection priorities respectively corresponding to the initial uplink BWP candidates may be sent by the network device to the terminal device.

[0206] Optionally, the network device may also determine the target initial uplink BWP according to the starting frequency and / or center frequency corresponding to each initial uplink BWP candidate. For example, if the target RO is included in both the initial uplink BWP candidate 1 and the initial uplink BWP candidate 2 in the frequency domain, the initial uplink BWP candidate 1 with the lowest starting frequency is determined as the target initial uplink BWP. Of course, the initial uplink BWP candidate with the highest starting frequency, the lowest center frequency, or the highest center frequency may also be determined as the target initial uplink BWP.

[0207] It should be noted that the above examples of determining the target initial uplink BWP based on the starting frequency or the center frequency are not exhaustive, and there may be multiple determination rules, such as stipulating that the initial uplink BWP candidate with a smaller index value has a higher priority. The specific rule based on which the determination is made can be predefined to allow the network device to determine the target initial uplink BWP corresponding to the terminal device from at least one initial uplink BWP candidate.

[0208] Optionally, the terminal device may also determine its own target initial uplink BWP according to the first indication information sent by the receiving network device. The first indication information indicates an initial uplink BWP candidate uniquely corresponding to each RO. Accordingly, the network device may also determine the target initial uplink BWP corresponding to the terminal device according to an initial uplink BWP candidate uniquely corresponding to each RO in the first indication information.

[0209] Since each RO is indicated to have a unique corresponding initial uplink BWP candidate, after determining the target RO, the network device can determine the unique initial uplink BWP candidate corresponding to the target RO as the target initial uplink BWP, even if the target RO may be included in multiple initial uplink BWP candidates in the frequency domain. For example, although the target RO is included in both initial uplink BWP candidate 1 and initial uplink BWP candidate 2 in the frequency domain, the network device indicates that the target RO corresponds to initial uplink BWP candidate 1, and the initial uplink BWP candidate 1 can be determined as the target initial uplink BWP.

[0210] In the random access method provided by the embodiment of the present application, the sets of ROs corresponding to the initial uplink BWP candidates sent by the network device to the terminal device can overlap, thereby reducing the configuration restrictions on the initial uplink BWP candidates and improving the configuration flexibility.

[0211] Optionally, determining a target initial uplink bandwidth part BWP corresponding to the terminal device according to the target RO includes any one of the following:

[0212] Determine the starting frequency or center frequency corresponding to the target RO, and determine the target initial uplink BWP corresponding to the terminal device according to the starting frequency or center frequency; wherein the center frequency of the frequency domain range corresponding to the target initial uplink BWP is the same as the starting frequency or center frequency corresponding to the target RO, and the frequency domain width of the frequency domain range corresponding to the target initial uplink BWP is indicated to the terminal device by the network device or is predefined;

[0213] Determine the starting frequency corresponding to the target RO, and determine the target initial uplink BWP corresponding to the terminal device according to the starting frequency; wherein the starting frequency of the frequency domain range corresponding to the target initial uplink BWP is the same as the starting frequency corresponding to the target RO, and the frequency domain width of the frequency domain range corresponding to the target initial uplink BWP is indicated to the terminal device by the network device or is predefined.

[0214] Specifically, after the network device determines the target RO used by the terminal device to initiate random access, it can determine the frequency domain range of the target initial uplink BWP corresponding to the terminal device according to the frequency domain range of the target RO and predefined rules.

[0215] For example, the center frequency of the frequency domain range corresponding to the target initial uplink BWP can be predefined to be the same as a frequency corresponding to the target RO, such as the center frequency of the frequency domain range corresponding to the target initial uplink BWP can be predefined to be the same as the center frequency corresponding to the target RO, or the center frequency of the frequency domain range corresponding to the target initial uplink BWP can be predefined to be the same as the starting frequency corresponding to the target RO, or the center frequency of the frequency domain range corresponding to the target initial uplink BWP can be predefined to be the same as other frequencies corresponding to the target RO.

[0216] For another example, the starting frequency of the frequency domain range corresponding to the target initial uplink BWP can be predefined to be the same as the starting frequency corresponding to the target RO, and the ending frequency of the frequency domain range corresponding to the target initial uplink BWP can also be predefined to be the same as the ending frequency corresponding to the target RO, and so on.

[0217] It should be noted that the above-mentioned frequency being the same may mean that the frequencies are completely equal, or that the frequencies are not completely equal, and there is a certain offset. For example, the center frequency of the target RO is the same as the center frequency of the target initial uplink BWP, which may mean that "the center frequency of the target RO" + "a predefined / notified offset value" = "the center frequency of the target initial uplink BWP".

[0218] In addition, the frequency domain width of the frequency domain range corresponding to the target initial uplink BWP can be the frequency domain width of the frequency domain range corresponding to the initial uplink BWP in the configuration information indicated by the network device to the terminal device, or it can be predefined. It should be noted that the frequency domain width of the frequency domain range corresponding to the target initial uplink BWP can be fixed or have different frequency domain widths depending on the target RO.

[0219] In the random access method provided by the embodiment of the present application, the frequency domain range of the target initial uplink BWP can be determined according to the frequency domain range of the target RO, without the need for the network device to indicate the frequency domain range of the initial uplink BWP candidate, thereby reducing the overhead of the network device sending configuration information.

[0220] Optionally, determining a target initial uplink bandwidth part BWP corresponding to the terminal device according to the target RO includes any one of the following:

[0221] Determine the starting frequency or center frequency corresponding to the designated RO corresponding to the target RO, and determine the target initial uplink BWP corresponding to the terminal device according to the starting frequency or center frequency; wherein the center frequency of the frequency domain range corresponding to the target initial uplink BWP is the same as the starting frequency or center frequency corresponding to the designated RO, and the frequency domain width of the frequency domain range corresponding to the target initial uplink BWP is indicated to the terminal device by the network device or is predefined;

[0222] Determine the starting frequency corresponding to the designated RO corresponding to the target RO, and determine the target initial uplink BWP corresponding to the terminal device according to the starting frequency; wherein the starting frequency of the frequency domain range corresponding to the target initial uplink BWP is the same as the starting frequency corresponding to the designated RO, and the frequency domain width of the frequency domain range corresponding to the target initial uplink BWP is indicated to the terminal device by the network device or is predefined.

[0223] Specifically, the designated RO refers to an RO that is predefined or indicated by a network device to a terminal device and is used to determine a target initial uplink BWP frequency domain range.

[0224] Different from the above-mentioned embodiment, in the above-mentioned embodiment, all ROs can be ROs used to determine the frequency domain range of the target initial uplink BWP, while in the present embodiment, only some ROs (i.e., a subset of all ROs with different frequency domain positions) are designated ROs. In this case, after the network device determines the target RO used by the terminal device to initiate random access, it is necessary to first determine the designated RO in the RO set based on the RO set where the target RO is located. For example, the RO set where the target RO is located can be a set of multiple ROs corresponding to the same SSB, and there is at least one designated RO in the RO set. Then, the frequency domain range of the target initial uplink BWP corresponding to the terminal device can be determined based on the frequency domain range of the designated RO and predefined rules.

[0225] In the random access method provided in the embodiment of the present application, the frequency domain range of the target initial uplink BWP can be determined according to the frequency domain range of the designated RO corresponding to the target RO, without the need for the network device to indicate the frequency domain range of the initial uplink BWP candidate, thereby reducing the overhead of the network device sending configuration information.

[0226] The methods and devices provided in the various embodiments of the present application are based on the same application concept. Since the methods and devices solve problems based on similar principles, the implementation of the devices and methods can refer to each other, and the repeated parts will not be repeated.

[0227] Figure 8 A schematic diagram of the structure of a terminal device provided in an embodiment of the present application, such as Figure 8 As shown, the terminal device includes a memory 820, a transceiver 810 and a processor 800; wherein the processor 800 and the memory 820 may also be arranged physically separately.

[0228] The memory 820 is used to store computer programs; the transceiver 810 is used to send and receive data under the control of the processor 800.

[0229] Specifically, the transceiver 810 is used to receive and send data under the control of the processor 800 .

[0230] Among them, Figure 8In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 800 and various circuits of memory represented by memory 820 are linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described in this application. The bus interface provides an interface. The transceiver 810 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, which transmission medium includes a wireless channel, a wired channel, an optical cable, and other transmission media. For different user devices, the user interface 830 may also be an interface capable of externally and internally connecting required devices, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

[0231] The processor 800 is responsible for managing the bus architecture and general processing, and the memory 820 can store data used by the processor 800 when performing operations.

[0232] The processor 800 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or a complex programmable logic device (CPLD). The processor may also adopt a multi-core architecture.

[0233] The processor 800 calls the computer program stored in the memory 820 to execute any of the methods provided in the embodiments of the present application according to the obtained executable instructions, for example: determining a target random access channel opportunity RO for initiating random access; and determining a target initial uplink bandwidth part BWP according to the target RO.

[0234] Optionally, the method further includes: receiving configuration information of at least one initial uplink BWP candidate and configuration information of at least one RO sent by a network device;

[0235] Determining a target initial uplink bandwidth part BWP according to the target RO includes: determining the target initial uplink BWP from at least one initial uplink BWP candidate according to the determined target RO.

[0236] Optionally, the sets of ROs corresponding to the initial uplink BWP candidates do not overlap;

[0237] Determining a target initial uplink BWP from at least one initial uplink BWP candidate according to the determined target RO includes: determining the target initial uplink BWP according to the initial uplink BWP candidate corresponding to the determined target RO.

[0238] Optionally, the sets of ROs corresponding to the initial uplink BWP candidates do not overlap, and the ROs corresponding to the same synchronization signal block SSB correspond to the same initial uplink BWP candidate;

[0239] Determining a target initial uplink BWP from at least one initial uplink BWP candidate according to the determined target RO includes: determining the target initial uplink BWP according to the initial uplink BWP candidate corresponding to the determined target RO.

[0240] Optionally, there is overlap between the sets of ROs corresponding to the initial uplink BWP candidates;

[0241] According to the determined target RO, determining the target initial uplink BWP from at least one initial uplink BWP candidate includes any one of the following: determining at least one initial uplink BWP candidate corresponding to the target RO, and determining the target initial uplink BWP according to the priorities respectively corresponding to the initial uplink BWP candidates; determining at least one initial uplink BWP candidate corresponding to the target RO, and determining the target initial uplink BWP according to the starting frequencies and / or center frequencies respectively corresponding to the initial uplink BWP candidates; determining the target initial uplink BWP according to first indication information corresponding to the target RO, the first indication information being used to indicate the initial uplink BWP candidate uniquely corresponding to each RO.

[0242] Optionally, the RO corresponding to the initial uplink BWP candidate is an RO whose frequency domain range is included in the frequency domain range of the initial uplink BWP candidate.

[0243] Optionally, determining the target initial uplink bandwidth part BWP according to the target RO includes any one of the following: determining the starting frequency or center frequency corresponding to the target RO, and determining the target initial uplink BWP according to the starting frequency or center frequency; wherein the center frequency of the frequency domain range corresponding to the target initial uplink BWP is the same as the starting frequency or center frequency corresponding to the target RO, and the frequency domain width of the frequency domain range corresponding to the target initial uplink BWP is indicated by the network device or is predefined; determining the starting frequency corresponding to the target RO, and determining the target initial uplink BWP according to the starting frequency; wherein the starting frequency of the frequency domain range corresponding to the target initial uplink BWP is the same as the starting frequency corresponding to the target RO, and the frequency domain width of the frequency domain range corresponding to the target initial uplink BWP is indicated by the network device or is predefined.

[0244] Optionally, determining the target initial uplink bandwidth part BWP according to the target RO includes any one of the following: determining the starting frequency or center frequency corresponding to the designated RO corresponding to the target RO, and determining the target initial uplink BWP according to the starting frequency or center frequency; wherein the center frequency of the frequency domain range corresponding to the target initial uplink BWP is the same as the starting frequency or center frequency corresponding to the designated RO, and the frequency domain width of the frequency domain range corresponding to the target initial uplink BWP is indicated by the network device or is predefined; determining the starting frequency corresponding to the designated RO corresponding to the target RO, and determining the target initial uplink BWP according to the starting frequency; wherein the starting frequency of the frequency domain range corresponding to the target initial uplink BWP is the same as the starting frequency corresponding to the designated RO, and the frequency domain width of the frequency domain range corresponding to the target initial uplink BWP is indicated by the network device or is predefined.

[0245] Fig. 9 A schematic diagram of the structure of a network device provided in an embodiment of the present application, such as Fig. 9 As shown, the network device includes a memory 920, a transceiver 910 and a processor 900; wherein the processor 900 and the memory 920 may also be arranged physically separately.

[0246] The memory 920 is used to store computer programs; the transceiver 910 is used to send and receive data under the control of the processor 900.

[0247] Specifically, the transceiver 910 is used to receive and send data under the control of the processor 900 .

[0248] Among them, Fig. 9 In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 900 and various circuits of memory represented by memory 920 are linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described in this application. The bus interface provides an interface. The transceiver 910 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, which transmission medium includes a wireless channel, a wired channel, an optical cable, and other transmission media. The processor 900 is responsible for managing the bus architecture and general processing, and the memory 920 may store data used by the processor 900 when performing operations.

[0249] The processor 900 may be a CPU, an ASIC, an FPGA or a CPLD, and the processor may also adopt a multi-core architecture.

[0250] The processor 900 calls the computer program stored in the memory 920 to execute any of the methods provided in the embodiments of the present application according to the obtained executable instructions, for example: determining the target random access channel timing RO used by the terminal device to initiate random access; according to the target RO, determining the target initial uplink bandwidth part BWP corresponding to the terminal device.

[0251] Optionally, the method further comprises: sending configuration information of at least one initial uplink BWP candidate and configuration information of at least one RO to the terminal device;

[0252] The determining of a target initial uplink bandwidth part BWP corresponding to the terminal device according to the target RO includes: determining a target initial uplink BWP corresponding to the terminal device from at least one initial uplink BWP candidate according to the determined target RO.

[0253] Optionally, the sets of ROs corresponding to the initial uplink BWP candidates do not overlap;

[0254] Determining the target initial uplink BWP corresponding to the terminal device from at least one initial uplink BWP candidate according to the determined target RO includes: determining the target initial uplink BWP corresponding to the terminal device according to the initial uplink BWP candidate corresponding to the determined target RO.

[0255] Optionally, the sets of ROs corresponding to the initial uplink BWP candidates do not overlap, and the ROs corresponding to the same synchronization signal block SSB correspond to the same initial uplink BWP candidate;

[0256] Determining the target initial uplink BWP corresponding to the terminal device from at least one initial uplink BWP candidate according to the determined target RO includes: determining the target initial uplink BWP corresponding to the terminal device according to the initial uplink BWP candidate corresponding to the determined target RO.

[0257] Optionally, there is overlap between the sets of ROs corresponding to the initial uplink BWP candidates;

[0258] The method of determining the target initial uplink BWP corresponding to the terminal device from at least one initial uplink BWP candidate according to the determined target RO includes any one of the following: determining at least one initial uplink BWP candidate corresponding to the target RO, and determining the target initial uplink BWP corresponding to the terminal device according to the priorities respectively corresponding to the initial uplink BWP candidates; determining at least one initial uplink BWP candidate corresponding to the target RO, and determining the target initial uplink BWP corresponding to the terminal device according to the starting frequencies and / or center frequencies respectively corresponding to the initial uplink BWP candidates; determining the target initial uplink BWP corresponding to the terminal device according to first indication information corresponding to the target RO, the first indication information being used to indicate the initial uplink BWP candidate uniquely corresponding to each RO.

[0259] Optionally, the RO corresponding to the initial uplink BWP candidate is an RO whose frequency domain range is included in the frequency domain range of the initial uplink BWP candidate.

[0260] Optionally, determining the target initial uplink bandwidth part BWP corresponding to the terminal device according to the target RO includes any one of the following: determining the starting frequency or center frequency corresponding to the target RO, and determining the target initial uplink BWP corresponding to the terminal device according to the starting frequency or center frequency; wherein the center frequency of the frequency domain range corresponding to the target initial uplink BWP is the same as the starting frequency or center frequency corresponding to the target RO, and the frequency domain width of the frequency domain range corresponding to the target initial uplink BWP is indicated to the terminal device by the network device or is predefined; determining the starting frequency corresponding to the target RO, and determining the target initial uplink BWP corresponding to the terminal device according to the starting frequency; wherein the starting frequency of the frequency domain range corresponding to the target initial uplink BWP is the same as the starting frequency corresponding to the target RO, and the frequency domain width of the frequency domain range corresponding to the target initial uplink BWP is indicated to the terminal device by the network device or is predefined.

[0261] Optionally, determining the target initial uplink bandwidth part BWP corresponding to the terminal device according to the target RO includes any one of the following: determining the starting frequency or center frequency corresponding to the designated RO corresponding to the target RO, and determining the target initial uplink BWP corresponding to the terminal device according to the starting frequency or center frequency; wherein the center frequency of the frequency domain range corresponding to the target initial uplink BWP is the same as the starting frequency or center frequency corresponding to the designated RO, and the frequency domain width of the frequency domain range corresponding to the target initial uplink BWP is indicated to the terminal device by the network device or is predefined; determining the starting frequency corresponding to the designated RO corresponding to the target RO, and determining the target initial uplink BWP corresponding to the terminal device according to the starting frequency; wherein the starting frequency of the frequency domain range corresponding to the target initial uplink BWP is the same as the starting frequency corresponding to the designated RO, and the frequency domain width of the frequency domain range corresponding to the target initial uplink BWP is indicated to the terminal device by the network device or is predefined.

[0262] It should be noted here that the above-mentioned terminal device and network device provided in the embodiment of the present application can implement all the method steps implemented in the above-mentioned method embodiment, and can achieve the same technical effect. The parts and beneficial effects that are the same as the method embodiment in this embodiment will not be described in detail here.

[0263] Fig.10 A schematic diagram of the structure of a random access device provided in an embodiment of the present application, which is applied to a terminal device, such as Fig.10 As shown, the device comprises:

[0264] The first determining unit 1000 is configured to determine a target random access channel opportunity RO for initiating random access;

[0265] The second determining unit 1010 is configured to determine a target initial uplink bandwidth part BWP according to a target RO.

[0266] Optionally, the device further comprises:

[0267] The receiving unit 1020 is configured to receive configuration information of at least one initial uplink BWP candidate and configuration information of at least one RO sent by a network device;

[0268] The second determining unit 1010 is configured to determine a target initial uplink BWP from at least one initial uplink BWP candidate according to the determined target RO.

[0269] Optionally, the sets of ROs corresponding to the initial uplink BWP candidates do not overlap;

[0270] The second determining unit 1010 is configured to determine a target initial uplink BWP according to the determined initial uplink BWP candidate corresponding to the target RO.

[0271] Optionally, the sets of ROs corresponding to the initial uplink BWP candidates do not overlap, and the ROs corresponding to the same synchronization signal block SSB correspond to the same initial uplink BWP candidate;

[0272] The second determining unit 1010 is configured to determine a target initial uplink BWP according to the determined initial uplink BWP candidate corresponding to the target RO.

[0273] Optionally, there is overlap between the sets of ROs corresponding to the initial uplink BWP candidates;

[0274] The second determining unit 1010 is configured to perform any of the following steps:

[0275] Determine at least one initial uplink BWP candidate corresponding to the target RO, and determine the target initial uplink BWP according to the priorities corresponding to the initial uplink BWP candidates;

[0276] Determine at least one initial uplink BWP candidate corresponding to the target RO, and determine the target initial uplink BWP according to the starting frequency and / or center frequency respectively corresponding to each initial uplink BWP candidate;

[0277] The target initial uplink BWP is determined according to the first indication information corresponding to the target RO, where the first indication information is used to indicate an initial uplink BWP candidate uniquely corresponding to each RO.

[0278] Optionally, the RO corresponding to the initial uplink BWP candidate is an RO whose frequency domain range is included in the frequency domain range of the initial uplink BWP candidate.

[0279] Optionally, the second determining unit 1010 is configured to perform any of the following steps:

[0280] Determine a starting frequency or a center frequency corresponding to the target RO, and determine a target initial uplink BWP according to the starting frequency or the center frequency; wherein the center frequency of the frequency domain range corresponding to the target initial uplink BWP is the same as the starting frequency or the center frequency corresponding to the target RO, and the frequency domain width of the frequency domain range corresponding to the target initial uplink BWP is indicated by the network device or is predefined;

[0281] Determine the starting frequency corresponding to the target RO, and determine the target initial uplink BWP according to the starting frequency; wherein the starting frequency of the frequency domain range corresponding to the target initial uplink BWP is the same as the starting frequency corresponding to the target RO, and the frequency domain width of the frequency domain range corresponding to the target initial uplink BWP is indicated by the network device or is predefined.

[0282] Optionally, the second determining unit 1010 is configured to perform any of the following steps:

[0283] Determine a starting frequency or a center frequency corresponding to a designated RO corresponding to a target RO, and determine a target initial uplink BWP according to the starting frequency or the center frequency; wherein the center frequency of a frequency domain range corresponding to the target initial uplink BWP is the same as the starting frequency or the center frequency corresponding to the designated RO, and the frequency domain width of the frequency domain range corresponding to the target initial uplink BWP is indicated by a network device or is predefined;

[0284] Determine the starting frequency corresponding to the designated RO corresponding to the target RO, and determine the target initial uplink BWP according to the starting frequency; wherein the starting frequency of the frequency domain range corresponding to the target initial uplink BWP is the same as the starting frequency corresponding to the designated RO, and the frequency domain width of the frequency domain range corresponding to the target initial uplink BWP is indicated by the network device or is predefined.

[0285] Fig.11 A schematic diagram of the structure of a random access device provided in an embodiment of the present application, which is applied to a network device, such as Fig.11 As shown, the device comprises:

[0286] The third determining unit 1100 is used to determine a target random access channel timing RO for the terminal device to initiate random access;

[0287] The fourth determining unit 1110 is configured to determine a target initial uplink bandwidth part BWP corresponding to the terminal device according to the target RO.

[0288] Optionally, the device further comprises:

[0289] The sending unit 1120 is configured to send configuration information of at least one initial uplink BWP candidate and configuration information of at least one RO to the terminal device;

[0290] The fourth determining unit 1110 is configured to determine, according to the determined target RO, a target initial uplink BWP corresponding to the terminal device from at least one initial uplink BWP candidate.

[0291] Optionally, the sets of ROs corresponding to the initial uplink BWP candidates do not overlap;

[0292] The fourth determining unit 1110 is configured to determine a target initial uplink BWP corresponding to the terminal device according to the determined initial uplink BWP candidate corresponding to the target RO.

[0293] Optionally, the sets of ROs corresponding to the initial uplink BWP candidates do not overlap, and the ROs corresponding to the same synchronization signal block SSB correspond to the same initial uplink BWP candidate;

[0294] The fourth determining unit 1110 is configured to determine a target initial uplink BWP corresponding to the terminal device according to the determined initial uplink BWP candidate corresponding to the target RO.

[0295] Optionally, there is overlap between the sets of ROs corresponding to the initial uplink BWP candidates;

[0296] The fourth determining unit 1110 is configured to perform any of the following steps:

[0297] Determine at least one initial uplink BWP candidate corresponding to the target RO, and determine the target initial uplink BWP corresponding to the terminal device according to the priorities corresponding to the initial uplink BWP candidates;

[0298] Determine at least one initial uplink BWP candidate corresponding to the target RO, and determine the target initial uplink BWP corresponding to the terminal device according to the starting frequency and / or center frequency respectively corresponding to each initial uplink BWP candidate;

[0299] According to the first indication information corresponding to the target RO, the target initial uplink BWP corresponding to the terminal device is determined, and the first indication information is used to indicate the initial uplink BWP candidate uniquely corresponding to each RO.

[0300] Optionally, the RO corresponding to the initial uplink BWP candidate is an RO whose frequency domain range is included in the frequency domain range of the initial uplink BWP candidate.

[0301] Optionally, the fourth determining unit 1110 is configured to perform any of the following steps:

[0302] Determine the starting frequency or center frequency corresponding to the target RO, and determine the target initial uplink BWP corresponding to the terminal device according to the starting frequency or center frequency; wherein the center frequency of the frequency domain range corresponding to the target initial uplink BWP is the same as the starting frequency or center frequency corresponding to the target RO, and the frequency domain width of the frequency domain range corresponding to the target initial uplink BWP is indicated to the terminal device by the network device or is predefined;

[0303] Determine the starting frequency corresponding to the target RO, and determine the target initial uplink BWP corresponding to the terminal device according to the starting frequency; wherein the starting frequency of the frequency domain range corresponding to the target initial uplink BWP is the same as the starting frequency corresponding to the target RO, and the frequency domain width of the frequency domain range corresponding to the target initial uplink BWP is indicated to the terminal device by the network device or is predefined.

[0304] Optionally, the fourth determining unit 1110 is configured to perform any of the following steps:

[0305] Determine the starting frequency or center frequency corresponding to the designated RO corresponding to the target RO, and determine the target initial uplink BWP corresponding to the terminal device according to the starting frequency or center frequency; wherein the center frequency of the frequency domain range corresponding to the target initial uplink BWP is the same as the starting frequency or center frequency corresponding to the designated RO, and the frequency domain width of the frequency domain range corresponding to the target initial uplink BWP is indicated to the terminal device by the network device or is predefined;

[0306] Determine the starting frequency corresponding to the designated RO corresponding to the target RO, and determine the target initial uplink BWP corresponding to the terminal device according to the starting frequency; wherein the starting frequency of the frequency domain range corresponding to the target initial uplink BWP is the same as the starting frequency corresponding to the designated RO, and the frequency domain width of the frequency domain range corresponding to the target initial uplink BWP is indicated to the terminal device by the network device or is predefined.

[0307] It should be noted that the division of units in the embodiments of the present application is schematic and is only a logical function division. There may be other division methods in actual implementation. In addition, each functional unit in each embodiment of the present application may be integrated into a processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0308] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, server, or network device, etc.) or a processor (processor) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), disk or optical disk and other media that can store program codes.

[0309] It should be noted here that the above-mentioned device provided in the embodiment of the present application can implement all the method steps implemented in the above-mentioned method embodiment, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0310] On the other hand, an embodiment of the present application also provides a processor-readable storage medium, which stores a computer program, and the computer program is used to enable the processor to execute the random access method provided by the above embodiments, including: determining a target random access channel timing RO for initiating random access; and determining a target initial uplink bandwidth part BWP based on the target RO.

[0311] On the other hand, an embodiment of the present application also provides a processor-readable storage medium, which stores a computer program, and the computer program is used to enable the processor to execute the random access method provided by the above-mentioned embodiments, including: determining a target random access channel timing RO used by the terminal device to initiate random access; based on the target RO, determining the target initial uplink bandwidth part BWP corresponding to the terminal device.

[0312] The processor-readable storage medium can be any available medium or data storage device that can be accessed by the processor, including but not limited to magnetic storage (such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.), optical storage (such as CD, DVD, BD, HVD, etc.), and semiconductor storage (such as ROM, EPROM, EEPROM, non-volatile memory (NANDFLASH), solid-state drive (SSD)), etc.

[0313] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) that contain computer-usable program code.

[0314] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer executable instructions. These computer executable instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0315] These processor executable instructions may also be stored in a processor readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the processor readable memory produce an article of manufacture including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0316] These processor-executable instructions may also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for executing on the computer or other programmable device to implement the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0317] The technical solution provided in the embodiment of the present application can be applicable to a variety of systems, especially 5G systems. For example, the applicable system can be a global system of mobile communication (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access (WCDMA) general packet radio service (GPRS) system, a long term evolution (LTE) system, a LTE frequency division duplex (FDD) system, a LTE time division duplex (TDD) system, an advanced long term evolution (LTE-A) system, a universal mobile telecommunication system (UMTS), a world-wide interoperability for microwave access (WiMAX) system, a 5G new air interface (NR) system, etc. These various systems include terminal equipment and network equipment. The system may also include a core network part, such as an evolved packet system (EPS), a 5G system (5GS), etc.

[0318] The terminal device involved in the embodiment of the present application may be a device that provides voice and / or data connectivity to a user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem. In different systems, the name of the terminal device may also be different. For example, in a 5G system, the terminal device may be called a user equipment (UE). A wireless terminal device can communicate with one or more core networks (CN) via a radio access network (RAN). The wireless terminal device may be a mobile terminal device, such as a mobile phone (or a "cellular" phone) and a computer with a mobile terminal device. For example, it may be a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device that exchanges language and / or data with a wireless access network. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs) and other devices. The wireless terminal device may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, a remote terminal device, an access terminal device, a user terminal device, a user agent, and a user device, but is not limited in the embodiments of the present application.

[0319] The network device involved in the embodiment of the present application may be a base station, which may include multiple cells providing services for the terminal. Depending on the specific application scenario, the base station may also be called an access point, or may be a device in the access network that communicates with the wireless terminal device through one or more sectors on the air interface, or other names. The network device may be used to interchange received air frames with Internet Protocol (IP) packets, and serve as a router between the wireless terminal device and the rest of the access network, wherein the rest of the access network may include an Internet Protocol (IP) communication network. The network device may also coordinate the attribute management of the air interface. For example, the network device involved in the embodiments of the present application may be a network device (Base Transceiver Station, BTS) in the Global System for Mobile communications (Global System for Mobile communications, GSM) or Code Division Multiple Access (Code Division Multiple Access, CDMA), or a network device (NodeB) in Wide-band Code Division Multiple Access (WCDMA), or an evolutionary network device (evolutional Node B, eNB or e-NodeB) in the long term evolution (long term evolution, LTE) system, a 5G base station (gNB) in the 5G network architecture (next generation system), or a home evolved Node B (Home evolved Node B, HeNB), a relay node, a home base station (femto), a pico base station (pico), etc., which is not limited in the embodiments of the present application. In some network structures, the network device may include a centralized unit (CU) node and a distributed unit (DU) node, and the centralized unit and the distributed unit may also be arranged geographically separately.

[0320] Network devices and terminal devices can each use one or more antennas for multiple-input multiple-output (MIMO) transmission. MIMO transmission can be single-user MIMO (SU-MIMO) or multi-user MIMO (MU-MIMO). Depending on the form and number of antenna combinations, MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO or massive-MIMO, or it can be diversity transmission, precoded transmission or beamforming transmission, etc.

[0321] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A random access method, characterized in that: Applied to a terminal device, the method comprises: Determining a target random access channel opportunity RO for initiating random access; Determine a target initial uplink bandwidth part BWP according to the target RO; The method further includes: receiving configuration information of at least one initial uplink BWP candidate and configuration information of at least one RO sent by a network device; The determining a target initial uplink bandwidth part BWP according to the target RO includes: Determine the target initial uplink BWP from the at least one initial uplink BWP candidate according to the determined target RO; The sets of ROs corresponding to the initial uplink BWP candidates do not overlap, and the ROs corresponding to the same synchronization signal block SSB correspond to the same initial uplink BWP candidate; determining the target initial uplink BWP from the at least one initial uplink BWP candidate according to the determined target RO includes: determining the target initial uplink BWP according to the initial uplink BWP candidate corresponding to the determined target RO; or, There is overlap between the sets of ROs corresponding to the initial uplink BWP candidates; and determining the target initial uplink BWP from the at least one initial uplink BWP candidate according to the determined target RO includes any one of the following: Determine at least one initial uplink BWP candidate corresponding to the target RO, and determine the target initial uplink BWP according to the priorities corresponding to the initial uplink BWP candidates; Determine at least one initial uplink BWP candidate corresponding to the target RO, and determine the target initial uplink BWP according to the starting frequency and / or center frequency respectively corresponding to each initial uplink BWP candidate; The target initial uplink BWP is determined according to first indication information corresponding to the target RO, where the first indication information is used to indicate an initial uplink BWP candidate uniquely corresponding to each RO.

2. The random access method according to claim 1, characterized in that: The RO corresponding to the initial uplink BWP candidate is an RO whose frequency domain range is included in the frequency domain range of the initial uplink BWP candidate.

3. A random access method, characterized in that: Applied to a network device, the method comprises: Determine a target random access channel timing RO for the terminal device to initiate random access; Determine a target initial uplink bandwidth part BWP corresponding to the terminal device according to the target RO; The method further comprises: sending configuration information of at least one initial uplink BWP candidate and configuration information of at least one RO to the terminal device; The determining, according to the target RO, a target initial uplink bandwidth part BWP corresponding to the terminal device includes: Determine, according to the determined target RO, a target initial uplink BWP corresponding to the terminal device from among the at least one initial uplink BWP candidate; The sets of ROs corresponding to the initial uplink BWP candidates do not overlap, and the ROs corresponding to the same synchronization signal block SSB correspond to the same initial uplink BWP candidate; determining the target initial uplink BWP corresponding to the terminal device in the at least one initial uplink BWP candidate according to the determined target RO, comprises: determining the target initial uplink BWP corresponding to the terminal device according to the initial uplink BWP candidate corresponding to the determined target RO; or, There is overlap between the sets of ROs corresponding to the initial uplink BWP candidates; and determining the target initial uplink BWP corresponding to the terminal device from the at least one initial uplink BWP candidate according to the determined target RO includes any one of the following: Determine at least one initial uplink BWP candidate corresponding to the target RO, and determine the target initial uplink BWP corresponding to the terminal device according to the priorities corresponding to the initial uplink BWP candidates; Determine at least one initial uplink BWP candidate corresponding to the target RO, and determine the target initial uplink BWP corresponding to the terminal device according to the starting frequency and / or center frequency respectively corresponding to each initial uplink BWP candidate; The target initial uplink BWP corresponding to the terminal device is determined according to the first indication information corresponding to the target RO, where the first indication information is used to indicate an initial uplink BWP candidate uniquely corresponding to each RO.

4. The random access method according to claim 3, characterized in that: The RO corresponding to the initial uplink BWP candidate is an RO whose frequency domain range is included in the frequency domain range of the initial uplink BWP candidate.

5. A terminal device, comprising a memory, a transceiver, and a processor: A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations: Determining a target random access channel opportunity RO for initiating random access; Determine a target initial uplink bandwidth part BWP according to the target RO; The operations also include: receiving configuration information of at least one initial uplink BWP candidate and configuration information of at least one RO sent by a network device; The determining a target initial uplink bandwidth part BWP according to the target RO includes: Determine the target initial uplink BWP from the at least one initial uplink BWP candidate according to the determined target RO; The sets of ROs corresponding to the initial uplink BWP candidates do not overlap, and the ROs corresponding to the same synchronization signal block SSB correspond to the same initial uplink BWP candidate; determining the target initial uplink BWP from the at least one initial uplink BWP candidate according to the determined target RO includes: determining the target initial uplink BWP according to the initial uplink BWP candidate corresponding to the determined target RO; or, There is overlap between the sets of ROs corresponding to the initial uplink BWP candidates; and determining the target initial uplink BWP from the at least one initial uplink BWP candidate according to the determined target RO includes any one of the following: Determine at least one initial uplink BWP candidate corresponding to the target RO, and determine the target initial uplink BWP according to the priorities corresponding to the initial uplink BWP candidates; Determine at least one initial uplink BWP candidate corresponding to the target RO, and determine the target initial uplink BWP according to the starting frequency and / or center frequency respectively corresponding to each initial uplink BWP candidate; The target initial uplink BWP is determined according to first indication information corresponding to the target RO, where the first indication information is used to indicate an initial uplink BWP candidate uniquely corresponding to each RO.

6. The terminal device according to claim 5, characterized in that: The RO corresponding to the initial uplink BWP candidate is an RO whose frequency domain range is included in the frequency domain range of the initial uplink BWP candidate.

7. A network device comprising a memory, a transceiver, and a processor: A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations: Determine a target random access channel timing RO for the terminal device to initiate random access; Determine a target initial uplink bandwidth part BWP corresponding to the terminal device according to the target RO; The operations also include: Sending configuration information of at least one initial uplink BWP candidate and configuration information of at least one RO to the terminal device; The determining, according to the target RO, a target initial uplink bandwidth part BWP corresponding to the terminal device includes: Determine, according to the determined target RO, a target initial uplink BWP corresponding to the terminal device from among the at least one initial uplink BWP candidate; The sets of ROs corresponding to the initial uplink BWP candidates do not overlap, and the ROs corresponding to the same synchronization signal block SSB correspond to the same initial uplink BWP candidate; The determining, according to the determined target RO, a target initial uplink BWP corresponding to the terminal device from the at least one initial uplink BWP candidate comprises: Determine the target initial uplink BWP corresponding to the terminal device according to the determined initial uplink BWP candidate corresponding to the target RO; There is overlap between the sets of ROs corresponding to the initial uplink BWP candidates; The determining, according to the determined target RO, the target initial uplink BWP corresponding to the terminal device from the at least one initial uplink BWP candidate includes any one of the following: Determine at least one initial uplink BWP candidate corresponding to the target RO, and determine the target initial uplink BWP corresponding to the terminal device according to the priorities corresponding to the initial uplink BWP candidates; Determine at least one initial uplink BWP candidate corresponding to the target RO, and determine the target initial uplink BWP corresponding to the terminal device according to the starting frequency and / or center frequency respectively corresponding to each initial uplink BWP candidate; The target initial uplink BWP corresponding to the terminal device is determined according to the first indication information corresponding to the target RO, where the first indication information is used to indicate an initial uplink BWP candidate uniquely corresponding to each RO.

8. The network device according to claim 7, characterized in that: The RO corresponding to the initial uplink BWP candidate is an RO whose frequency domain range is included in the frequency domain range of the initial uplink BWP candidate.

9. A random access device, characterized in that: Applied to a terminal device, the device comprises: A first determining unit, configured to determine a target random access channel opportunity RO for initiating random access; A second determining unit, configured to determine a target initial uplink bandwidth part BWP according to the target RO; The apparatus further includes a receiving unit, configured to receive configuration information of at least one initial uplink BWP candidate and configuration information of at least one RO sent by a network device; The determining a target initial uplink bandwidth part BWP according to the target RO includes: Determine the target initial uplink BWP from the at least one initial uplink BWP candidate according to the determined target RO; The sets of ROs corresponding to the initial uplink BWP candidates do not overlap, and the ROs corresponding to the same synchronization signal block SSB correspond to the same initial uplink BWP candidate; determining the target initial uplink BWP from the at least one initial uplink BWP candidate according to the determined target RO includes: determining the target initial uplink BWP according to the initial uplink BWP candidate corresponding to the determined target RO; or, There is overlap between the sets of ROs corresponding to the initial uplink BWP candidates; and determining the target initial uplink BWP from the at least one initial uplink BWP candidate according to the determined target RO includes any one of the following: Determine at least one initial uplink BWP candidate corresponding to the target RO, and determine the target initial uplink BWP according to the priorities corresponding to the initial uplink BWP candidates; Determine at least one initial uplink BWP candidate corresponding to the target RO, and determine the target initial uplink BWP according to the starting frequency and / or center frequency respectively corresponding to each initial uplink BWP candidate; The target initial uplink BWP is determined according to first indication information corresponding to the target RO, where the first indication information is used to indicate an initial uplink BWP candidate uniquely corresponding to each RO.

10. A random access device, characterized in that: Applied to network equipment, the device comprises: A third determining unit, configured to determine a target random access channel opportunity RO for the terminal device to initiate random access; A fourth determining unit, configured to determine a target initial uplink bandwidth part BWP corresponding to the terminal device according to the target RO; The apparatus further includes a sending unit, configured to send configuration information of at least one initial uplink BWP candidate and configuration information of at least one RO to the terminal device; The determining, according to the target RO, a target initial uplink bandwidth part BWP corresponding to the terminal device includes: Determine, according to the determined target RO, a target initial uplink BWP corresponding to the terminal device from among the at least one initial uplink BWP candidate; The sets of ROs corresponding to the initial uplink BWP candidates do not overlap, and the ROs corresponding to the same synchronization signal block SSB correspond to the same initial uplink BWP candidate; determining the target initial uplink BWP corresponding to the terminal device in the at least one initial uplink BWP candidate according to the determined target RO, comprises: determining the target initial uplink BWP corresponding to the terminal device according to the initial uplink BWP candidate corresponding to the determined target RO; or, There is overlap between the sets of ROs corresponding to the initial uplink BWP candidates; and determining the target initial uplink BWP corresponding to the terminal device from the at least one initial uplink BWP candidate according to the determined target RO includes any one of the following: Determine at least one initial uplink BWP candidate corresponding to the target RO, and determine the target initial uplink BWP corresponding to the terminal device according to the priorities corresponding to the initial uplink BWP candidates; Determine at least one initial uplink BWP candidate corresponding to the target RO, and determine the target initial uplink BWP corresponding to the terminal device according to the starting frequency and / or center frequency respectively corresponding to each initial uplink BWP candidate; The target initial uplink BWP corresponding to the terminal device is determined according to the first indication information corresponding to the target RO, where the first indication information is used to indicate an initial uplink BWP candidate uniquely corresponding to each RO.

11. A processor-readable storage medium, characterized in that: The processor-readable storage medium stores a computer program, and the computer program is used to enable the processor to execute the method according to any one of claims 1 to 2, or to execute the method according to any one of claims 3 to 4.

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