WO2022206124A1 - 随机接入方法、设备、装置及存储介质 - Google Patents

随机接入方法、设备、装置及存储介质 Download PDF

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Publication number
WO2022206124A1
WO2022206124A1 PCT/CN2022/072116 CN2022072116W WO2022206124A1 WO 2022206124 A1 WO2022206124 A1 WO 2022206124A1 CN 2022072116 W CN2022072116 W CN 2022072116W WO 2022206124 A1 WO2022206124 A1 WO 2022206124A1
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Prior art keywords
target
initial uplink
uplink bwp
frequency
candidate
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PCT/CN2022/072116
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English (en)
French (fr)
Inventor
费永强
邢艳萍
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大唐移动通信设备有限公司
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Publication of WO2022206124A1 publication Critical patent/WO2022206124A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA

Definitions

  • the present disclosure relates to the field of wireless communication technologies, and in particular, to a random access method, device, apparatus, and storage medium.
  • RedCap UE Reduced Capability User Equipment
  • RedCap UE aim to reduce the implementation complexity and cost of terminals. Therefore, the maximum bandwidth supported by RedCap UEs will be smaller than the maximum bandwidth supported by ordinary UEs. For example, when the carrier frequency is below 6GHz, the maximum bandwidth supported by ordinary UEs The maximum bandwidth can be 100MHz, while the maximum bandwidth supported by RedCap UEs may only be 20MHz.
  • the UE measures the synchronization signal block (Synchronization Signal Block, SSB) sent by the gNB, and selects the SSB with better signal strength (Reference Signal Received Power (Reference Signal Received Power) measured by the SSB , RSRP) is greater than the predefined threshold value) corresponding to the random access channel opportunity (Random Access Channel Occasion, RO), on the RO send the physical random access channel (Physical Random Access Channel, PRACH), as a random access channel the first step in.
  • SSB Synchronization Signal Block
  • RSRP Reference Signal Received Power
  • PRACH Physical Random Access Channel
  • the frequency domain range of all ROs is included in the frequency domain range of the initial Uplink Bandwidth Part (initial Uplink Bandwidth Part, initial UL BWP).
  • initial UL BWP initial Uplink Bandwidth Part
  • its maximum bandwidth may be smaller than the initial UL BWP bandwidth.
  • RedCap UE still uses the RO used by the common 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.
  • the embodiments of the present disclosure provide a random access method, device, apparatus, and storage medium.
  • an embodiment of the present disclosure provides a random access method, which is applied to a terminal device, and the method includes:
  • the target initial uplink bandwidth part BWP is determined.
  • the method further includes:
  • the determining of the target initial uplink bandwidth part BWP according to the target RO includes:
  • the target initial uplink BWP is determined in the at least one initial uplink BWP candidate.
  • the sets of ROs corresponding to the initial uplink BWP candidates do not overlap
  • the determining the target initial uplink BWP from the at least one initial uplink BWP candidate according to the determined target RO includes:
  • the target initial uplink BWP is determined according to the initial uplink BWP candidate corresponding 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;
  • the determining the target initial uplink BWP from the at least one initial uplink BWP candidate according to the determined target RO includes:
  • the target initial uplink BWP is determined according to the initial uplink BWP candidate corresponding to the determined target RO.
  • the target initial uplink BWP is determined in the at least one initial uplink BWP candidate according to the determined target RO, including any of the following:
  • 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 a unique initial uplink BWP candidate corresponding to each RO.
  • 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.
  • determining the target initial uplink bandwidth part BWP according to the target RO including any of the following:
  • the target initial uplink BWP Determine the starting frequency or center frequency corresponding to the target RO, and determine the 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 target RO.
  • the corresponding starting frequencies or center frequencies are the same, 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;
  • 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 and the starting frequency corresponding to the target RO Similarly, 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 target initial uplink bandwidth part BWP according to the target RO including any of the following:
  • the center frequency of the frequency domain range corresponding to the target initial uplink BWP be the same as the starting frequency or center frequency corresponding to the specified 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;
  • 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 designated RO.
  • the corresponding starting frequencies are the same, 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.
  • an embodiment of the present disclosure further provides a random access method, which is applied to a network device, and the method includes:
  • the target initial uplink bandwidth part BWP corresponding to the terminal device is determined.
  • the method further includes:
  • the determining, according to the target RO, the target initial uplink bandwidth part BWP corresponding to the terminal device includes:
  • the target initial uplink BWP corresponding to the terminal device is determined in the at least one initial uplink BWP candidate.
  • the sets of ROs corresponding to the initial uplink BWP candidates do not overlap
  • Determining, according to the determined target RO, the target initial uplink BWP corresponding to the terminal device in the at least one initial uplink BWP candidate including:
  • the target initial uplink BWP corresponding to the terminal device is determined according to the initial uplink BWP candidate corresponding 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, according to the determined target RO, the target initial uplink BWP corresponding to the terminal device in the at least one initial uplink BWP candidate including:
  • the target initial uplink BWP corresponding to the terminal device is determined.
  • the target initial uplink BWP corresponding to the terminal device is determined in the at least one initial uplink BWP candidate according to the determined target RO, including any of the following:
  • the target initial uplink BWP corresponding to the terminal device is determined according to the first indication information corresponding to the target RO, and the first indication information is used to indicate a unique initial uplink BWP candidate corresponding to each RO.
  • 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.
  • determining the target initial uplink bandwidth part BWP corresponding to the terminal device according to the target RO including any of the following:
  • the target initial uplink BWP Determine the start frequency or center frequency corresponding to the target RO, and determine the target initial uplink BWP corresponding to the terminal device according to the start frequency or center frequency; wherein, the center of the frequency domain range corresponding to the target initial uplink BWP The frequency 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 to the terminal device or is predefined;
  • 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 target initial uplink BWP.
  • the starting frequencies corresponding to the ROs are the same, and the frequency domain width of the frequency domain range corresponding to the target initial uplink BWP is indicated by the network device to the terminal device or is predefined.
  • determining the target initial uplink bandwidth part BWP corresponding to the terminal device according to the target RO including any of the following:
  • the target initial uplink BWP corresponding to The center frequency of the frequency domain range is the same as the starting frequency or center frequency corresponding to the specified RO, and the frequency domain width of the frequency domain range corresponding to the target initial uplink BWP is the one indicated by the network device to the terminal device or is pre-defined;
  • the start 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 start frequency; wherein, the start of the frequency domain range corresponding to the target initial uplink BWP The frequency 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 to the terminal device or is predefined.
  • an embodiment of the present disclosure further provides a terminal device, including a memory, a transceiver, and a processor, wherein:
  • a memory for storing a computer program
  • a transceiver for sending and receiving data under the control of the processor
  • a processor for reading the computer program in the memory and implementing the random access method described in the first aspect The steps of the access method.
  • an embodiment of the present disclosure further provides a network device, including a memory, a transceiver, and a processor, wherein:
  • a memory for storing a computer program
  • a transceiver for sending and receiving data under the control of the processor
  • a processor for reading the computer program in the memory and implementing the random access method described in the second aspect above The steps of the access method.
  • an embodiment of the present disclosure further provides a random access apparatus, which is applied to a terminal device, and the apparatus includes:
  • a first determining unit configured to determine a target random access channel opportunity RO for initiating random access
  • the second determining unit is configured to determine the target initial uplink bandwidth part BWP according to the target RO.
  • an embodiment of the present disclosure further provides a random access apparatus, which is applied to a network device, and the apparatus includes:
  • a third determining unit configured to determine the target random access channel opportunity RO used by the terminal device to initiate random access
  • the fourth determining unit is configured to determine, according to the target RO, the target initial uplink bandwidth part BWP corresponding to the terminal device.
  • an embodiment of the present disclosure further provides a processor-readable storage medium, where the processor-readable storage medium stores a computer program, and the computer program is used to cause the processor to execute the first aspect as described above The steps of the random access method, or the steps of executing the random access method described in the second aspect above.
  • 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 initial uplink BWP frequency domain, it is avoided that the RedCap UE cannot initiate random access on the RO with the best channel condition, which ensures the reliability of random access and improves the success rate of random access.
  • Fig. 1 is a schematic diagram of the positions of the initial UL BWP and RO in the frequency domain provided by the prior art
  • FIG. 2 is one of the schematic flowcharts of the random access method provided by an embodiment of the present disclosure
  • FIG. 3 is one of the schematic diagrams of the implementation of the random access method provided by the embodiment of the present disclosure.
  • FIG. 4 is the second schematic diagram of the implementation of the random access method provided by the embodiment of the present disclosure.
  • FIG. 5 is a third schematic diagram of the implementation of the random access method provided by the embodiment of the present disclosure.
  • FIG. 6 is a fourth schematic diagram of the implementation of the random access method provided by the embodiment of the present disclosure.
  • FIG. 7 is a second schematic flowchart of a random access method provided by an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of a terminal device provided by an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of a network device provided by an embodiment of the present disclosure.
  • FIG. 10 is one of the schematic structural diagrams of a random access apparatus provided by an embodiment of the present disclosure.
  • FIG. 11 is a second schematic structural diagram of a random access apparatus provided by an embodiment of the present disclosure.
  • the term "and/or" describes the association relationship of associated objects, and indicates that there can be three kinds of relationships. For example, A and/or B can indicate that A exists alone, A and B exist at the same time, and B exists alone these three situations.
  • the character “/” generally indicates that the associated objects are an "or" relationship.
  • the term “plurality” refers to two or more than two, and other quantifiers are similar.
  • a network device (such as a gNB) broadcasts and sends the configuration information of the SSB, the initial UL BWP, and the configuration information of the RO.
  • the network device can send multiple SSBs, and there is a certain mapping relationship between SSBs and ROs, and there can be many-to-one, one-to-one or one-to-many correspondences between them, and the mapping relationship indication information is also included in the RO configuration. in the information.
  • FIG. 1 is a schematic diagram of the positions of the initial UL BWP and the RO in the frequency domain provided by the prior art. As shown in FIG. 1 , there are 8 frequency-divided ROs in the frequency domain, 8 ROs correspond to 4 SSBs, and ROs corresponding to different SSBs are distinguished by different patterns (SSBs are not shown in the figure). However, because the bandwidth of the RedCap UE is smaller than the initial UL BWP, a RedCap initial UL BWP may not include all ROs in the frequency domain, which leads to a RedCap UE may not be able to select the optimal RO for random access.
  • RedCap initial UL BWP is similar to the existing initial UL BWP, it 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 enter.
  • the gNB broadcast configuration is generally used to allow the UE to determine the only public initial UL BWP with a fixed frequency domain range; if the RedCap initial UL BWP is implemented in a similar way, it may cause the RedCap UE to receive the best SSB signal.
  • the corresponding RO is outside the range of the RedCap initial UL BWP frequency domain, and the RedCap UE cannot initiate random access on the RO with the best channel condition, which reduces the strength of the transmitted and received signals during random access, and also reduces the success rate of random access.
  • the embodiments of the present disclosure provide 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 initiates random access according to the RedCap UE.
  • RO determines the RedCap initial UL BWP of the RedCap UE, so that the RO selected by the RedCap UE can always be within the range of its RedCap initial UL BWP frequency domain, ensuring the reliability of random access and improving the success of random access. Rate.
  • FIG. 2 is a schematic flowchart of a random access method provided by an embodiment of the present disclosure. The method is applied to a terminal device. As shown in FIG. 2 , the method includes the following steps:
  • Step 200 determining a target random access channel opportunity RO for initiating random access
  • the terminal device needs to initiate random access to the network device (eg gNB) in order to obtain the communication service provided by the network device.
  • 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) according to the RO configuration information sent by the network device.
  • the network device initiates the target RO used for random access, so as to send PRACH to the network device on the target RO, as the first step of random access.
  • the present disclosure mainly takes four-step random access as an example, and the PRACH can be Message 1 (Message 1, Msg1) in the four-step random access; the present disclosure can also be used for two-step random access, in which case the PRACH can be PRACH in message A (Message A, MsgA) in two-step random access.
  • the PRACH can be Message 1 (Message 1, Msg1) in the four-step random access; the present disclosure can also be used for two-step random access, in which case the PRACH can be PRACH in message A (Message A, MsgA) in two-step random access.
  • Step 201 Determine the target initial uplink bandwidth part BWP according to the target RO.
  • the terminal device After the terminal device determines the target RO for initiating random access to the network device, it can determine its corresponding initial uplink BWP, that is, the target initial uplink BWP, according to the target RO.
  • the network device if the network device detects the PRACH in the target RO, the network device may determine the target initial uplink BWP corresponding to the terminal device according to the target RO where the terminal device initiates random access.
  • the terminal device determines the target RO and the target initial uplink BWP
  • its uplink transmission in the random access phase may all be performed in the determined target initial uplink BWP
  • the uplink transmission in the random access phase includes PRACH, message 3 (Message 3, Msg3), feedback to the physical uplink control channel (Physical Uplink Control Channel, PUCCH) of message 4 (Message 4, Msg4), or the physical uplink shared channel ( Physical Uplink Shared Channel, PUSCH), PUCCH feedback to message B (Message B, MsgB), etc.
  • PRACH Physical Uplink Control Channel
  • PUCCH Physical Uplink Control Channel
  • PUCCH Physical Uplink Control Channel
  • PUSCH Physical Uplink Shared Channel
  • the embodiments of the present disclosure are described by taking the RedCap UE needing to initiate random access to the network device as an example.
  • those skilled in the art can know that the technical solutions of the embodiments of the present disclosure are not limited to the scenario in which the RedCap UE initiates random access.
  • Other types of terminal equipment are also applicable, such as narrowband terminals, IoT terminals, and so on.
  • the embodiments of the present disclosure only take the RedCap UE as an example for introduction.
  • 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 of its initial uplink BWP. , which prevents the RedCap UE from being unable to initiate random access on the RO with the best channel condition, ensures the reliability of random access, and improves the success rate of random access.
  • the method further includes:
  • the target initial uplink bandwidth part BWP including:
  • a target initial uplink BWP is determined in at least one initial uplink BWP candidate.
  • the terminal device may 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, so that according to the determined target RO, in the at least one initial uplink One of the BWP candidates is determined as the target initial uplink BWP.
  • the sending of the configuration information by the network device may be implemented in various ways, such as broadcast sending, unicast or multicast notification, and the like.
  • the configuration information of the initial uplink BWP candidates includes at least the frequency domain position of each initial uplink BWP candidate.
  • only the frequency domain position may be different among the initial uplink BWP candidates, and the rest of the configurations are the same (such as frequency domain width, PUSCH configuration, PUCCH configuration, etc.). ), for example, other configuration information other than the frequency domain location is shared among the initial uplink BWP candidates. In this way, the overhead of sending the configuration information of the initial uplink BWP candidate can be reduced.
  • 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 that according to the determined target RO, at least one initial uplink BWP One of the candidates is determined as the target initial uplink BWP, which prevents the RedCap UE from initiating random access on the RO with the best channel condition, ensures the reliability of random access, and improves the success rate of random access.
  • the sets of ROs corresponding to each initial uplink BWP candidate do not overlap
  • the target initial uplink BWP is determined in at least one initial uplink BWP candidate, including:
  • the target initial uplink BWP is determined according to the initial uplink BWP candidate corresponding to the determined target RO.
  • 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 set of ROs corresponding to each initial uplink BWP candidate do not overlap.
  • the RO corresponding to each initial uplink BWP candidate refers to the RO whose frequency domain range is included in the frequency domain range of the initial uplink BWP candidate.
  • the RO corresponding to the The initial uplink BWP candidate refers to the initial uplink BWP candidate including the RO in the frequency domain.
  • the inclusion may be completely included, that is, the frequency domain range of the initial uplink BWP candidate includes the complete RO frequency domain range, or, the inclusion may only be partially included, that is, the RO frequency domain range is only partially included in the initial uplink BWP candidate. in the frequency domain.
  • the sets of ROs corresponding to each initial uplink BWP candidate do not overlap, which means that there is a "many-to-one" correspondence between each RO and each initial uplink BWP candidate.
  • Which initial uplink BWP candidate is included in the frequency domain to determine the target initial uplink BWP. For example, if the target RO is included in the initial uplink BWP candidate 1 in the frequency domain, the initial uplink BWP candidate 1 is determined as the target initial uplink BWP.
  • the sets of ROs corresponding to each initial uplink BWP candidate 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, and improve the The efficiency of random access of terminal equipment is improved.
  • FIG. 3 is a schematic diagram of the implementation of a random access method provided by an embodiment of the present disclosure.
  • a network device sends 4 SSBs (SSB_0, SSB_1, SSB_2, SSB_3), and 8 frequency-divided SSBs are configured in the frequency domain RO (RO_0, RO_1,...RO_7), 8 ROs correspond to 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 in Different patterns are used for distinction in the figure, and SSB is not drawn in the figure.
  • the network device broadcasts three RedCap initial UL BWP candidate configuration information, namely RedCap initial UL BWP 0, RedCap initial UL BWP 1 and RedCap initial UL BWP 2.
  • the initial uplink BWP candidate configuration information includes frequency domain range indication information of each initial uplink BWP candidate, indicating the frequency domain range of each initial uplink BWP candidate.
  • the frequency domain width of each initial uplink BWP candidate does not exceed the maximum bandwidth supported by the RedCap UE, which can ensure that the RedCap UE can transmit correctly no matter which initial uplink BWP candidate is selected as the target initial uplink BWP.
  • 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 ⁇
  • RedCap initial UL BWP 2 The set of ROs included is ⁇ RO_6, RO_7 ⁇ . It can be seen that the RO sets included in the three initial uplink BWP candidates are different from each other, and there is no overlap between the sets.
  • RO_0, RO_1, and RO_2 correspond to RedCap initial UL BWP 0
  • RO_3, RO_4, and RO_5 correspond to RedCap initial UL BWP 1
  • RO_6 and RO_7 correspond to RedCap initial UL BWP 2.
  • a RedCap UE If a RedCap UE measures that the RSRP of SSB_0 is greater than the predefined threshold, 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 A RedCap UE can determine that its RedCap initial UL BWP is RedCap initial UL BWP 0. Similarly, if another RedCap UE detects that the RSRP of SSB_1 is greater than the predefined threshold, it can select RO_2 or RO_3 corresponding to SSB_1 to initiate random access.
  • the RedCap UE selects RO_2, it will also Determine the RedCap initial UL BWP 0 as the RedCap initial UL BWP, if the RedCap UE selects RO_3, then determine the RedCap initial UL BWP 1 as the RedCap initial UL BWP.
  • the gNB can determine that a RedCap UE that initiates random access uses the RedCap initial UL BWP 0 as the RedCap initial UL BWP. Similarly, when the gNB detects PRACH in different ROs, it can determine the RedCap initial UL BWP corresponding to a RedCap UE that initiates random access.
  • the RedCap UE can always select the best RO to initiate random access based on the measurement result of the SSB, thus ensuring the random access channel
  • the signal quality improves the success rate of random access.
  • the "many-to-one" correspondence between RO and RedCap initial UL BWP candidates also enables the gNB to always uniquely determine the RedCap initial UL BWP of the RedCap UE that initiates random access according to the RO that receives the PRACH, reducing the Implementation complexity of gNB.
  • the premise of the "many-to-one" correspondence is that there are multiple ROs corresponding to the same RedCap initial UL BWP candidate in the frequency domain. There may also be a situation where one RO corresponds to the same RedCap initial UL BWP candidate, in this case there is a "one-to-one" correspondence. Under the "one-to-one" correspondence, the analysis in this embodiment is also applicable.
  • the sets of ROs corresponding to each initial uplink BWP candidate do not overlap, and the ROs corresponding to the same synchronization signal block SSB correspond to the same initial uplink BWP candidate;
  • the target initial uplink BWP is determined in at least one initial uplink BWP candidate, including:
  • the target initial uplink BWP is determined according to the initial uplink BWP candidate corresponding to the determined target RO.
  • 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 set of ROs corresponding to each initial uplink BWP candidate Not only do they not overlap, but 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.
  • the terminal device may 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 the initial uplink BWP candidate 2 in the frequency domain, then The initial uplink BWP candidate 2 is determined as the target initial uplink BWP.
  • the sets of ROs corresponding to each initial uplink BWP candidate 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
  • the device can uniquely determine the target initial uplink BWP according to the determined target RO, which improves the random access efficiency of the terminal device and simplifies the uplink and downlink beam relationships that the network device needs to maintain in the initial uplink BWP.
  • FIG. 4 is a schematic diagram of the implementation of the random access method provided by the embodiment of the present disclosure, as shown in FIG. 4 , in which it is assumed that there are two initial uplink BWP candidates (RedCap initial UL BWP 0 and RedCap initial UL BWP 1). What is different from the embodiment corresponding to FIG. 3 is that there is an additional restriction in this embodiment: if one SSB corresponds to multiple ROs, the multiple ROs corresponding to the same SSB must be included in the same initial uplink. BWP candidate.
  • each SSB corresponds to two ROs (for example, 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 ROs corresponding to different SSBs are distinguished by different patterns in the figure.
  • SSB is not shown in the figure)
  • the two ROs corresponding to the same SSB are included in the same initial uplink BWP candidate, and there will be no two ROs corresponding to the same SSB.
  • RedCap initial UL BWP Another case is included in RedCap initial UL BWP 1.
  • this embodiment has an additional beneficial effect: the transmission beam between the gNB and the UE has a corresponding relationship between uplink and downlink beam pairs (beam pairs).
  • the downlink beam is represented by the SSB sent by the gNB
  • the uplink beam is represented by the PRACH and Msg3 sent by the UE.
  • This method can simplify the relationship between the uplink and downlink beams that the gNB needs to maintain in the RedCap initial UL BWP. Different initial uplink BWP candidates maintain downlink beams corresponding to the same SSB.
  • the premise of the "many-to-one" correspondence is that there are multiple ROs corresponding to the same RedCap initial UL BWP candidate in the frequency domain, or multiple SSBs corresponding 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 RedCap initial UL BWP. In this case, there is a "one-to-one" correspondence. Under the "one-to-one" correspondence, the analysis in this embodiment is also applicable.
  • the target initial uplink BWP is determined in at least one initial uplink BWP candidate according to the determined target RO, including any of the following:
  • the target initial uplink BWP is determined according to the first indication information corresponding to the target RO, and the first indication information is used to indicate a unique initial uplink BWP candidate corresponding to each RO.
  • 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 set of ROs corresponding to each initial uplink BWP candidate There is overlap. This indicates that there may be a "many-to-many" correspondence between each RO and each initial uplink BWP candidate, or a "one-to-many" correspondence.
  • the target initial uplink BWP cannot be uniquely determined only according to which initial uplink BWP candidate the target RO is included in in the frequency domain.
  • the terminal device may determine the target initial uplink BWP according to the selection priority 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. It is the initial upstream BWP of the target.
  • the selection priority corresponding to each initial uplink BWP candidate may be sent by the network device to the terminal device.
  • the terminal device may also determine the target initial uplink BWP according to the corresponding start frequency and/or center frequency of each initial uplink BWP candidate.
  • the target RO includes both initial uplink BWP candidate 1 and initial uplink BWP candidate 1 in the frequency domain.
  • the initial uplink BWP candidate 1 with the lowest starting frequency is determined as the target initial uplink BWP.
  • the initial uplink BWP candidate with the highest start frequency or the lowest center frequency or the highest center frequency may also be determined as the target initial uplink BWP.
  • 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 specifying that the initial uplink BWP candidate with a smaller index value has a higher priority. .
  • a predefined method can be used to allow the terminal device to determine its own target initial uplink BWP from at least one initial uplink BWP candidate.
  • the terminal device may also determine its own target initial uplink BWP according to receiving the first indication information sent by the network device.
  • the first indication information indicates an initial uplink BWP candidate uniquely corresponding to each RO.
  • the terminal 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 is in the frequency domain may be included in multiple initial uplink BWP candidates. For example, although the target RO is included in both the initial uplink BWP candidate 1 and the initial uplink BWP candidate 2 in the frequency domain, but the network device indicates that the target RO corresponds to the initial uplink BWP candidate 1, the terminal device can determine the initial uplink BWP candidate 1 It is the initial upstream BWP of the target.
  • the sets of ROs corresponding to each initial uplink BWP candidate received by the terminal device may overlap, thereby reducing the configuration restriction on the initial uplink BWP candidate and improving the flexibility of configuration.
  • FIG. 5 is a schematic diagram of the implementation of a random access method provided by an embodiment of the present disclosure. As shown in FIG. 5 , different from the embodiment corresponding to FIG. 3 or FIG. 4 is that in this embodiment, the relationship between the RO and the initial uplink BWP candidate There are no constraints like "many-to-one" or "one-to-one". The same RO may correspond to multiple initial uplink BWP candidates, and the initial uplink BWP candidates may overlap among RO sets included in the frequency domain.
  • 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. Available methods are:
  • the gNB broadcasts the selection priority among the initial uplink BWP candidates.
  • the gNB can broadcast a priority order among the initial uplink BWP candidates, such as 0>1>2, this priority order can be used for all ROs, and the UE can 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 ROs, the indication overhead is small.
  • RedCap UE selects the initial uplink BWP candidate with the lowest/highest frequency at the start/center frequency domain position.
  • This method does not require the gNB to broadcast additional information, but allows the UE to determine its own initial uplink BWP among multiple initial uplink BWP candidates through predefined rules. For example, it may be specified 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 the selected RO as its RedCap initial UL BWP. Under this predefined method, if the RedCap UE selects RO_3, RO_3 corresponds to RedCap initial UL BWP 0 and RedCap initial UL BWP 1.
  • RedCap initial UL BWP 0 Since the starting frequency of RedCap initial UL BWP 0 is lower than RedCap initial UL BWP 1, the UE Determine RedCap initial UL BWP 0 as its initial upstream BWP. Similarly, selection based on the center frequency position of the initial uplink BWP candidate, or selecting the initial uplink BWP candidate with the highest frequency at the start/center frequency domain position, etc. can also be generalized.
  • the gNB can broadcast the RedCap initial UL BWP corresponding to each RO (corresponding to multiple initial uplink BWP candidates). For example, the gNB may 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 needs to be indicated by each RO (corresponding to multiple initial uplink BWP candidates), the indication overhead is larger than (1), but the indication is also more flexible.
  • the method in this embodiment has the least configuration restriction on the RedCap initial UL BWP candidate, and the configuration is the most flexible. However, additional methods are required to deal with the possible situation that "one RO corresponds to multiple initial uplink BWP candidates".
  • determine the target initial uplink bandwidth part BWP including any of the following:
  • the target initial uplink BWP Determine the start frequency or center frequency corresponding to the target RO, and determine the target initial uplink BWP according to the start frequency or center frequency; wherein, the center frequency of the frequency domain range corresponding to the target initial uplink BWP and the start frequency or center frequency corresponding to the target RO The same, 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;
  • the frequency domain width of the frequency domain range is indicated by the network device or predefined.
  • 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 the predefined rules.
  • the center frequency of the frequency domain range corresponding to the target initial uplink BWP can be predefined to be the same as a certain frequency corresponding to the target RO.
  • the center frequency of the frequency domain range corresponding to the target initial uplink BWP can be predefined and the center frequency corresponding to the target RO.
  • Other frequencies are the same.
  • the start frequency of the frequency domain range corresponding to the target initial uplink BWP can be predefined to be the same as the start frequency corresponding to the target RO, and the end frequency of the frequency domain range corresponding to the target initial uplink BWP can also be predefined.
  • the termination frequency is the same, and so on.
  • the above frequencies are the same, the frequencies may be completely equal, or the frequencies may not be 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.
  • “center frequency” + “a predefined/notified offset value” “center frequency of the target initial uplink BWP”.
  • the frequency domain width of the frequency domain range corresponding to the target initial uplink BWP may be indicated by the network device, such as sent by the network device to the terminal device through broadcasting, 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 according to different target ROs.
  • 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 transmission configuration of the network device. Information cost.
  • determine the target initial uplink bandwidth part BWP including any of the following:
  • the target initial uplink BWP Determine the starting frequency or center frequency corresponding to the designated RO corresponding to the target RO, and determine 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 starting frequency corresponding to the designated RO.
  • the initial frequency or center frequency is the same, 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;
  • the frequency domain width of the frequency domain range corresponding to the initial uplink BWP is indicated by the network device or is predefined.
  • the specified RO refers to the RO that is predefined or indicated by the network device and used to determine the target initial uplink BWP frequency domain range.
  • all ROs may be ROs used to determine the target initial uplink BWP frequency domain range, while in this embodiment, only some ROs (that is, all ROs with different frequency domain positions) A subset of ROs) is a designated RO.
  • the terminal device determines the target RO used to initiate random access to the network device, it needs to first determine the designated RO set in the RO set according to the RO set where the target RO is located.
  • RO for example, the RO set where the target RO is located may be a set of multiple ROs corresponding to the same SSB, and there is at least one specified RO in the RO set, then the specified RO can be determined according to the frequency domain range of the specified RO and the predefined rules.
  • the frequency domain range of the target initial uplink BWP corresponding to the terminal device.
  • 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 candidates, so that the Reduce the overhead of network devices sending configuration information.
  • FIG. 6 is a schematic diagram of the implementation of the random access method provided by the embodiment of the present disclosure.
  • the network device sends 4 SSBs (SSB_0, SSB_1, SSB_2, SSB_3), and 4 frequency-divided SSBs are configured in the frequency domain RO (RO_0, RO_1, RO_2, RO_3), 4 ROs correspond to 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.
  • the network device does not indicate the frequency domain range of the RedCap initial UL BWP, that is, the "frequency domain position" or "frequency domain width" of the initial uplink BWP candidate. At least one, 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 specific ROs that "can be used to determine the initial uplink BWP candidate".
  • each RO with different positions in the frequency domain corresponds to a RedCap initial UL BWP 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.
  • the predefined width is 20MHz in frequency domain range 1 (Frequency Range 1, FR1, refers to the frequency band below 6GHz), and the width is 100MHz in FR2 (Frequency Range 2, refers to the millimeter wave frequency band).
  • 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 corresponding to the RedCap initial UL BWP 0 according to RO_0; the same is true for the network device. If the PRACH sent by the RedCap UE is detected in RO_0, the gNB The initial uplink BWP of a RedCap UE that initiates random access, that is, the frequency domain range of RedCap initial UL BWP 0 can be determined.
  • the specific RO may also be a subset of all ROs with different positions in the frequency domain, for example, it may be a subset of ROs determined in a pre-defined manner (for example, the lowest frequency among multiple ROs corresponding to the same SSB) one), it can also be the RO subset indicated by the network equipment broadcast;
  • the frequency domain position of the initial uplink BWP candidate can also have other determination or corresponding methods, such as the frequency domain starting position of the initial uplink BWP candidate and the starting position of the RO The location is the same;
  • the frequency domain width of the initial uplink BWP candidate can also be indicated by the network device broadcast, or even indicated for each initial uplink BWP candidate separately, that is, the frequency domain width of the initial uplink BWP candidate may not be uniform, common , but independent.
  • FIG. 7 is a schematic flowchart of a random access method provided by an embodiment of the present disclosure. The method is applied to a network device. As shown in FIG. 7 , the method includes the following steps:
  • Step 700 Determine the target random access channel opportunity RO used by the terminal device to initiate random access
  • the terminal device needs to initiate random access to the network device (eg gNB) in order to obtain the communication service provided by the network device.
  • 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) according to the RO configuration information sent by the network device.
  • the network device initiates the target RO used for random access, and sends PRACH to the network device on the target RO as the first step of random access.
  • the network device detects the PRACH in the target RO, the network device can determine the target RO selected by the terminal device that initiates random access.
  • Step 701 Determine the target initial uplink bandwidth part BWP corresponding to the terminal device according to the target RO.
  • the network device can determine the initial uplink BWP corresponding to the terminal device, that is, the target initial uplink BWP, according to the target RO.
  • the network device determines the target RO selected by the terminal device according to the RO that detects the PRACH, and determines the target initial uplink BWP corresponding to the terminal device according to the target RO, so that the terminal device selects the target RO.
  • the target RO can always be within the target initial uplink BWP frequency domain, which prevents the RedCap UE from initiating random access on the RO with the best channel condition, ensures the reliability of random access, and improves the success rate of random access. .
  • the method further includes:
  • the target RO determine the target initial uplink bandwidth part BWP corresponding to the terminal device, including:
  • the target initial uplink BWP corresponding to the terminal device is determined in at least one initial uplink BWP candidate.
  • the network device may also send the configuration information of at least one initial uplink BWP candidate and the configuration information of at least one RO to the terminal device, so that the terminal device can, according to the determined target RO, be in at least one One of the initial uplink BWP candidates is determined as the target initial uplink BWP.
  • the network device also determines one of the at least one initial uplink BWP candidates as the target initial uplink BWP according to the determined target RO.
  • the sending of the configuration information by the network device may be implemented in various ways, such as broadcast sending, unicast or multicast notification, and the like.
  • the configuration information of the initial uplink BWP candidates includes at least the frequency domain position of each initial uplink BWP candidate.
  • only the frequency domain position may be different among the initial uplink BWP candidates, and the rest of the configurations are the same (such as frequency domain width, PUSCH configuration, PUCCH configuration, etc.). ), for example, other configuration information other than the frequency domain location is shared among the initial uplink BWP candidates. In this way, the overhead of sending the configuration information of the initial uplink BWP candidate can be reduced.
  • the network device can send the configuration information of at least one initial uplink BWP candidate and the configuration information of at least one RO to the terminal device, and according to the determined target RO, in the at least one initial uplink BWP candidate One of them is determined to be the target initial uplink BWP corresponding to the terminal device, which prevents the RedCap UE from initiating random access on the RO with the best channel condition, ensures the reliability of random access, and improves the success rate of random access.
  • the sets of ROs corresponding to each initial uplink BWP candidate do not overlap
  • Determining, according to the determined target RO, a target initial uplink BWP corresponding to the terminal device in at least one initial uplink BWP candidate including:
  • the target initial uplink BWP corresponding to the terminal device is determined.
  • 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 set of ROs corresponding to each initial uplink BWP candidate do not overlap.
  • the RO corresponding to each initial uplink BWP candidate refers to the RO whose frequency domain range is included in the frequency domain range of the initial uplink BWP candidate.
  • the RO corresponding to the The initial uplink BWP candidate refers to the initial uplink BWP candidate including the RO in the frequency domain.
  • the inclusion may be completely included, that is, the frequency domain range of the initial uplink BWP candidate includes the complete RO frequency domain range, or, the inclusion may only be partially included, that is, the RO frequency domain range is only partially included in the initial uplink BWP candidate. in the frequency domain.
  • the sets of ROs corresponding to each initial uplink BWP candidate do not overlap, which means that there is a "many-to-one" correspondence between each RO and each initial uplink BWP candidate.
  • the network device can Which initial uplink BWP candidate is included in the frequency domain to determine the target initial uplink BWP. For example, if the target RO is included in the initial uplink BWP candidate 1 in the frequency domain, the initial uplink BWP candidate 1 is determined as the target initial uplink BWP.
  • the sets of ROs corresponding to each initial uplink BWP candidate sent by the network device to the terminal device do not overlap, so that both the terminal device and the network device can be unique according to the determined target RO. Determining the target initial uplink BWP improves the efficiency of random access.
  • the sets of ROs corresponding to each initial uplink BWP candidate do not overlap, and the RO corresponding to the same synchronization signal block SSB corresponds to the same initial uplink BWP candidate;
  • Determining, according to the determined target RO, a target initial uplink BWP corresponding to the terminal device in at least one initial uplink BWP candidate including:
  • the target initial uplink BWP corresponding to the terminal device is determined.
  • 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 set of ROs corresponding to each initial uplink BWP candidate Not only do they not overlap, but 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.
  • the network device may 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 the initial uplink BWP candidate 2 in the frequency domain, then The initial uplink BWP candidate 2 is determined as the target initial uplink BWP.
  • the sets of ROs corresponding to each initial uplink BWP candidate 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 both the terminal device and the network device can uniquely determine the target initial uplink BWP according to the determined target RO, which improves the efficiency of random access and simplifies the uplink and downlink beam relationships that the network device needs to maintain in the initial uplink BWP.
  • the target initial uplink BWP corresponding to the terminal device is determined in at least one initial uplink BWP candidate according to the determined target RO, including any of the following:
  • the target initial uplink BWP corresponding to the terminal device is determined according to the first indication information corresponding to the target RO, and the first indication information is used to indicate a unique initial uplink BWP candidate corresponding to each RO.
  • 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 set of ROs corresponding to each initial uplink BWP candidate There is overlap. This indicates that there may be a "many-to-many" correspondence between each RO and each initial uplink BWP candidate, or a "one-to-many" correspondence.
  • the target initial uplink BWP cannot be uniquely determined only according to which initial uplink BWP candidate the target RO is included in in the frequency domain.
  • the network device may determine the target initial uplink BWP according to the selection priority 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. It is the initial upstream BWP of the target.
  • the selection priority corresponding to each initial uplink BWP candidate may be sent by the network device to the terminal device.
  • the network device may also determine the target initial uplink BWP according to the start frequency and/or center frequency corresponding to each initial uplink BWP candidate, for example, the target RO includes both the initial uplink BWP candidate 1 and the initial uplink BWP candidate 1 and the initial In the uplink BWP candidate 2, the initial uplink BWP candidate 1 with the lowest starting frequency is determined as the target initial uplink BWP.
  • the initial uplink BWP candidate with the highest start frequency or the lowest center frequency or the highest center frequency may also be determined as the target initial uplink BWP.
  • 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 specifying that the initial uplink BWP candidate with a smaller index value has a higher priority. .
  • a predefined method can be used to enable the network device to determine the target initial uplink BWP corresponding to the terminal device in at least one initial uplink BWP candidate.
  • the terminal device may also determine its own target initial uplink BWP according to receiving the first indication information sent by the network device.
  • the first indication information indicates an initial uplink BWP candidate uniquely corresponding to each RO.
  • 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.
  • each RO is indicated with a unique initial uplink BWP candidate
  • the network device can determine the only corresponding initial uplink BWP candidate of the target RO as the target initial uplink BWP, even if the target RO is in the frequency domain may be included in multiple initial uplink BWP candidates. For example, although the target RO is included in both the initial uplink BWP candidate 1 and the initial uplink BWP candidate 2 in the frequency domain, but the network device indicates that the target RO corresponds to the initial uplink BWP candidate 1, the initial uplink BWP candidate 1 can be determined as the target.
  • Initial upstream BWP is included in both the initial uplink BWP candidate 1 and the initial uplink BWP candidate 2 in the frequency domain
  • the sets of ROs corresponding to each initial uplink BWP candidate sent by the network device to the terminal device may overlap, thereby reducing the configuration restriction on the initial uplink BWP candidate and improving the configuration efficiency. flexibility.
  • the target initial uplink bandwidth part BWP corresponding to the terminal device is determined, including any of the following:
  • the target initial uplink BWP 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 and the starting frequency corresponding to the target RO The frequency or center frequency is the same, and the frequency domain width of the frequency domain range corresponding to the target initial uplink BWP is indicated by the network device to the terminal device or is predefined;
  • 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 target initial The frequency domain width of the frequency domain range corresponding to the uplink BWP is indicated by the network device to the terminal device or is predefined.
  • the network device may 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 the predefined rule.
  • the center frequency of the frequency domain range corresponding to the target initial uplink BWP can be predefined to be the same as a certain frequency corresponding to the target RO.
  • the center frequency of the frequency domain range corresponding to the target initial uplink BWP can be predefined and the center frequency corresponding to the target RO.
  • Other frequencies are the same.
  • the start frequency of the frequency domain range corresponding to the target initial uplink BWP can be predefined to be the same as the start frequency corresponding to the target RO, and the end frequency of the frequency domain range corresponding to the target initial uplink BWP can also be predefined.
  • the termination frequency is the same, and so on.
  • the above frequencies are the same, the frequencies may be completely equal, or the frequencies may not be 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.
  • “center frequency” + “a predefined/notified offset value” “center frequency of the target initial uplink BWP”.
  • the frequency domain width of the frequency domain range corresponding to the target initial uplink BWP may 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 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 according to different target ROs.
  • 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 transmission configuration of the network device. Information cost.
  • the target initial uplink bandwidth part BWP corresponding to the terminal device is determined, including any of the following:
  • 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 designated initial frequency.
  • the starting frequency or center frequency corresponding to the RO is the same, and the frequency domain width of the frequency domain range corresponding to the target initial uplink BWP is indicated by the network device to the terminal device or is predefined;
  • 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 starting frequency corresponding to the designated RO.
  • the frequencies are the same, and the frequency domain width of the frequency domain range corresponding to the target initial uplink BWP is indicated by the network device to the terminal device or is predefined.
  • the designated RO refers to the RO that is predefined or indicated to the terminal device by the network device and used to determine the target initial uplink BWP frequency domain range.
  • all ROs may be ROs used to determine the target initial uplink BWP frequency domain range, while in this embodiment, only some ROs (that is, all ROs with different frequency domain positions) A subset of RO) is the designated RO.
  • the network device determines the target RO used by the terminal device to initiate random access, it needs to first determine the designated RO in the RO set according to the RO set where the target RO is located.
  • the set of ROs where the target RO is located may be a set of multiple ROs corresponding to the same SSB, and there is at least one specified RO in the set of ROs, then the terminal can be determined according to the frequency domain range of the specified RO and the predefined rules.
  • the frequency domain range of the target initial uplink BWP corresponding to the device may be a set of multiple ROs corresponding to the same SSB, and there is at least one specified RO in the set of ROs.
  • 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 candidates, so that the Reduce the overhead of network devices sending configuration information.
  • FIG. 8 is a schematic structural diagram of a terminal device provided by an embodiment of the present disclosure.
  • 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 physically separated .
  • 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 .
  • the transceiver 810 is used to receive and transmit data under the control of the processor 800 .
  • 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, therefore, will not be described further in this disclosure.
  • the bus interface provides the interface.
  • Transceiver 810 may be multiple elements, including a transmitter and a receiver, providing means for communicating with various other devices over transmission media including wireless channels, wired channels, fiber optic cables, and the like.
  • the user interface 830 may also be an interface capable of externally connecting the required equipment, and the connected equipment includes but is not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the processor 800 is responsible for managing the bus architecture and general processing, and the memory 820 may store data used by the processor 800 in performing operations.
  • the processor 800 may be a central processing unit (Central Processing Unit, CPU), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field-Programmable Gate Array, FPGA) or a complex programmable logic device (Complex) Programmable Logic Device, CPLD), the processor can also adopt a multi-core architecture.
  • CPU Central Processing Unit
  • ASIC Application Specific Integrated Circuit
  • FPGA Field-Programmable Gate Array
  • CPLD complex programmable logic device
  • the processor can also adopt a multi-core architecture.
  • the processor 800 invokes the computer program stored in the memory 820 to execute any of the methods provided in the embodiments of the present disclosure according to the obtained executable instructions, for example: determining a target random access channel opportunity RO for initiating random access ; According to the target RO, determine the target initial uplink bandwidth part BWP.
  • 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 the network device;
  • Determining the 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.
  • the sets of ROs corresponding to each initial uplink BWP candidate do not overlap
  • determining the target initial uplink BWP in at least one initial uplink BWP candidate includes: determining the target initial uplink BWP according to the initial uplink BWP candidate corresponding to the determined target RO.
  • the sets of ROs corresponding to each initial uplink BWP candidate 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 in at least one initial uplink BWP candidate includes: determining the target initial uplink BWP according to the initial uplink BWP candidate corresponding to the determined target RO.
  • the target initial uplink BWP is determined in at least one initial uplink BWP candidate, including any one of the following: determining at least one initial uplink BWP candidate corresponding to the target RO, and according to the priority corresponding to each initial uplink BWP candidate determine at least one initial uplink BWP candidate corresponding to the target RO, and determine the target initial uplink BWP according to the corresponding start frequency and/or center frequency of each initial uplink BWP candidate;
  • the indication information is used to determine the target initial uplink BWP, and the first indication information is used to indicate a unique initial uplink BWP candidate corresponding to each RO.
  • 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.
  • determining the target initial uplink bandwidth part BWP according to the target RO includes any of the following: determining a start frequency or center frequency corresponding to the target RO, and determining the target initial uplink BWP according to the start 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 start 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; 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 target initial uplink BWP corresponds to the starting frequency.
  • the frequency domain width of the frequency domain range is indicated by the network device or predefined.
  • determining the initial uplink bandwidth part BWP of the target according to the target RO including any of the following: determining the starting frequency or the center frequency corresponding to the designated RO corresponding to the target RO, and determining the target according to the starting frequency or the center frequency.
  • the initial uplink BWP wherein, the center frequency of the frequency domain range corresponding to the target initial uplink BWP is the same as the start frequency or center frequency corresponding to the specified 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 It is predefined; the starting frequency corresponding to the designated RO corresponding to the target RO is determined, and the target initial uplink BWP is determined according to the starting frequency; wherein, the starting frequency of the frequency domain range corresponding to the target initial uplink BWP is the starting frequency corresponding to the designated RO.
  • the initial frequency is the same, 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.
  • FIG. 9 is a schematic structural diagram of a network device provided by an embodiment of the present disclosure.
  • the network device includes a memory 920, a transceiver 910, and a processor 900; the processor 900 and the memory 920 may also be physically arranged separately .
  • 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 .
  • the transceiver 910 is used to receive and transmit data under the control of the processor 900 .
  • 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 peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be described further in this disclosure.
  • the bus interface provides the interface.
  • Transceiver 910 may be multiple elements, ie, including a transmitter and a receiver, providing means for communicating with various other devices over transmission media including wireless channels, wired channels, fiber optic cables, and the like.
  • 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 in performing operations.
  • the processor 900 may be a CPU, an ASIC, an FPGA or a CPLD, and the processor may also adopt a multi-core architecture.
  • the processor 900 invokes the computer program stored in the memory 920 to execute any of the methods provided in the embodiments of the present disclosure according to the obtained executable instructions, for example: determining a target random access channel used by the terminal device to initiate random access Opportunity RO; according to the target RO, determine the target initial uplink bandwidth part BWP corresponding to the terminal device.
  • the method further includes: 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 the target initial uplink bandwidth part BWP corresponding to the terminal device according to the target RO includes: 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.
  • the sets of ROs corresponding to each initial uplink BWP candidate do not overlap
  • Determining, according to the determined target RO, the target initial uplink BWP corresponding to the terminal equipment in the at least one initial uplink BWP candidate includes: determining the target initial uplink BWP corresponding to the terminal equipment according to the initial uplink BWP candidate corresponding to the determined target RO. Upstream BWP.
  • the sets of ROs corresponding to each initial uplink BWP candidate do not overlap, and the ROs corresponding to the same synchronization signal block SSB correspond to the same initial uplink BWP candidate;
  • Determining, according to the determined target RO, the target initial uplink BWP corresponding to the terminal equipment in the at least one initial uplink BWP candidate includes: determining the target initial uplink BWP corresponding to the terminal equipment according to the initial uplink BWP candidate corresponding to the determined target RO. Upstream BWP.
  • Determining, according to the determined target RO, the target initial uplink BWP corresponding to the terminal device in the at least one initial uplink BWP candidate including any one of the following: determining at least one initial uplink BWP candidate corresponding to the target RO, according to each initial uplink BWP candidate.
  • the respective priorities of the BWP candidates determine the target initial uplink BWP corresponding to the terminal equipment; at least one initial uplink BWP candidate corresponding to the target RO is determined, and the terminal equipment is determined according to the respective starting frequencies and/or center frequencies of the initial uplink BWP candidates.
  • the corresponding target initial uplink BWP 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 unique initial uplink BWP candidate corresponding to each RO.
  • 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.
  • determining the target initial uplink bandwidth part BWP corresponding to the terminal device according to the target RO including any of the following: determining the start frequency or center frequency corresponding to the target RO, and determining the terminal device according to the start frequency or the center frequency.
  • the starting frequency corresponding to the target RO determines the target initial uplink BWP corresponding to the terminal equipment 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 frequencies corresponding to the target RO are the same, and the frequency domain width of the frequency domain range corresponding to the target initial uplink BWP is indicated by the network device to the terminal device or is predefined.
  • determining the target initial uplink bandwidth part BWP corresponding to the terminal device according to the target RO including any of the following: determining the start frequency or center frequency corresponding to the designated RO corresponding to the target RO, according to the start frequency or The center frequency determines the target initial uplink BWP corresponding to the terminal device; wherein, the center frequency of the frequency domain range corresponding to the target initial uplink BWP is the same as the start frequency or center frequency corresponding to the specified RO, and the frequency domain range corresponding to the target initial uplink BWP is the same.
  • the domain width is indicated by the network device to the terminal device or is predefined; 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 target initial uplink BWP
  • the starting frequency of the corresponding frequency domain range is the same as the starting frequency corresponding to the specified RO
  • the frequency domain width of the frequency domain range corresponding to the target initial uplink BWP is indicated by the network device to the terminal device or is predefined.
  • FIG. 10 is a schematic structural diagram of a random access apparatus provided by an embodiment of the present disclosure.
  • the apparatus is applied to terminal equipment. As shown in FIG. 10 , the apparatus includes:
  • a first determining unit 1000 configured to determine a target random access channel opportunity RO for initiating random access
  • the second determining unit 1010 is configured to determine the target initial uplink bandwidth part BWP according to the target RO.
  • the device further includes:
  • a receiving unit 1020 configured to 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;
  • 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.
  • the sets of ROs corresponding to each initial uplink BWP candidate do not overlap
  • the second determining unit 1010 is configured to: determine the target initial uplink BWP according to the initial uplink BWP candidate corresponding to the determined target RO.
  • the sets of ROs corresponding to each initial uplink BWP candidate do not overlap, and the ROs corresponding to the same synchronization signal block SSB correspond to the same initial uplink BWP candidate;
  • the second determining unit 1010 is configured to: determine the target initial uplink BWP according to the initial uplink BWP candidate corresponding to the determined target RO.
  • the second determining unit 1010 is configured to perform any one of the following steps:
  • the target initial uplink BWP is determined according to the first indication information corresponding to the target RO, and the first indication information is used to indicate a unique initial uplink BWP candidate corresponding to each RO.
  • 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.
  • the second determining unit 1010 is configured to perform any one of the following steps:
  • the target initial uplink BWP Determine the start frequency or center frequency corresponding to the target RO, and determine the target initial uplink BWP according to the start frequency or center frequency; wherein, the center frequency of the frequency domain range corresponding to the target initial uplink BWP and the start frequency or center frequency corresponding to the target RO The same, 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;
  • the frequency domain width of the frequency domain range is indicated by the network device or predefined.
  • the second determining unit 1010 is configured to perform any one of the following steps:
  • the target initial uplink BWP Determine the starting frequency or center frequency corresponding to the designated RO corresponding to the target RO, and determine 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 starting frequency corresponding to the designated RO.
  • the initial frequency or center frequency is the same, 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;
  • the frequency domain width of the frequency domain range corresponding to the initial uplink BWP is indicated by the network device or is predefined.
  • FIG. 11 is a schematic structural diagram of a random access apparatus provided by an embodiment of the present disclosure.
  • the apparatus is applied to network equipment. As shown in FIG. 11 , the apparatus includes:
  • a third determining unit 1100 configured to determine a target random access channel opportunity RO used by the terminal device to initiate random access
  • the fourth determining unit 1110 is configured to determine, according to the target RO, the target initial uplink bandwidth part BWP corresponding to the terminal device.
  • the device further includes:
  • a sending unit 1120 configured to send the configuration information of at least one initial uplink BWP candidate and the configuration information of at least one RO to the terminal device;
  • 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.
  • the sets of ROs corresponding to each initial uplink BWP candidate do not overlap
  • the fourth determining unit 1110 is configured to: determine the target initial uplink BWP corresponding to the terminal device according to the initial uplink BWP candidate corresponding to the determined target RO.
  • the sets of ROs corresponding to each initial uplink BWP candidate do not overlap, and the ROs corresponding to the same synchronization signal block SSB correspond to the same initial uplink BWP candidate;
  • the fourth determining unit 1110 is configured to: determine the target initial uplink BWP corresponding to the terminal device according to the initial uplink BWP candidate corresponding to the determined target RO.
  • the fourth determining unit 1110 is configured to perform any one of the following steps:
  • the target initial uplink BWP corresponding to the terminal device is determined according to the first indication information corresponding to the target RO, and the first indication information is used to indicate a unique initial uplink BWP candidate corresponding to each RO.
  • 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.
  • the fourth determining unit 1110 is configured to perform any one of the following steps:
  • the target initial uplink BWP 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 and the starting frequency corresponding to the target RO The frequency or center frequency is the same, and the frequency domain width of the frequency domain range corresponding to the target initial uplink BWP is indicated by the network device to the terminal device or is predefined;
  • 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 target initial The frequency domain width of the frequency domain range corresponding to the uplink BWP is indicated by the network device to the terminal device or is predefined.
  • the fourth determining unit 1110 is configured to perform any one of the following steps:
  • 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 designated initial frequency.
  • the starting frequency or center frequency corresponding to the RO is the same, and the frequency domain width of the frequency domain range corresponding to the target initial uplink BWP is indicated by the network device to the terminal device or is predefined;
  • 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 starting frequency corresponding to the designated RO.
  • the frequencies are the same, and the frequency domain width of the frequency domain range corresponding to the target initial uplink BWP is indicated by the network device to the terminal device or is predefined.
  • each functional unit in each embodiment of the present disclosure may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.
  • the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in a processor-readable storage medium.
  • the technical solutions of the present disclosure can be embodied in the form of software products in essence, or the part that contributes to the prior art, or all or part of the technical solutions, and the computer software product is stored in a storage medium , including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the methods described in the various embodiments of the present disclosure.
  • the aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes .
  • an embodiment of the present disclosure further provides a processor-readable storage medium, where a computer program is stored in the processor-readable storage medium, and the computer program is used to cause the processor to execute the processing provided by the foregoing embodiments.
  • the random access 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.
  • an embodiment of the present disclosure further provides a processor-readable storage medium, where a computer program is stored in the processor-readable storage medium, and the computer program is used to cause the processor to execute the processing provided by the foregoing embodiments.
  • the random access method includes: determining a target random access channel opportunity RO used by a terminal device to initiate random access; and determining a target initial uplink bandwidth part BWP corresponding to the terminal device according to the target RO.
  • the processor-readable storage medium can be any available medium or data storage device that can be accessed by a processor, including, but not limited to, magnetic storage (eg, floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.), optical storage (eg, CD, DVD, BD, HVD, etc.), and semiconductor memory (eg, ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state disk (SSD)), etc.
  • magnetic storage eg, floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.
  • optical storage eg, CD, DVD, BD, HVD, etc.
  • semiconductor memory eg, ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state disk (SSD)
  • embodiments of the present disclosure may be provided as a method, system, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable storage media having computer-usable program code embodied therein, including but not limited to disk storage, optical storage, and the like.
  • processor-executable instructions may also be stored in a processor-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a particular manner, such that the instructions stored in the processor-readable memory result in the manufacture of means including the instructions product, the instruction means implements the functions specified in the flow or flow of the flowchart and/or the block or blocks of the block diagram.
  • processor-executable instructions can also be loaded onto a computer or other programmable data processing device to cause a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process that Execution of the instructions provides steps for implementing the functions specified in the flowchart or blocks and/or the block or blocks of the block diagrams.
  • the applicable system may be a global system of mobile communication (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) general packet Wireless service (general packet radio service, GPRS) system, long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD) system, Long term evolution advanced (LTE-A) system, universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) system, 5G New Radio (New Radio, NR) system, etc.
  • GSM global system of mobile communication
  • CDMA code division multiple access
  • WCDMA wideband Code Division Multiple Access
  • General packet Wireless service general packet Radio service
  • GPRS general packet Wireless service
  • LTE long term evolution
  • LTE long term evolution
  • FDD frequency division duplex
  • TDD time division duplex
  • LTE-A Long term evolution advanced
  • the terminal device involved in the embodiments of the present disclosure 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 device connected to a wireless modem.
  • the name of the terminal device may be different.
  • the terminal device may be called user equipment (User Equipment, UE).
  • Wireless terminal equipment can communicate with one or more core networks (Core Network, CN) via a radio access network (Radio Access Network, RAN).
  • RAN Radio Access Network
  • "telephone) and computers with mobile terminal equipment eg portable, pocket-sized, hand-held, computer-built or vehicle-mounted mobile devices, which exchange language and/or data with the radio access network.
  • Wireless terminal equipment may also be referred to as system, subscriber unit, subscriber station, mobile station, mobile station, remote station, access point , a remote terminal device (remote terminal), an access terminal device (access terminal), a user terminal device (user terminal), a user agent (user agent), and a user device (user device), which are not limited in the embodiments of the present disclosure.
  • the network device involved in the embodiments of the present disclosure may be a base station, and the base station may include a plurality of cells providing services for the terminal.
  • the base station may also be called an access point, or may be a device in the access network that communicates with wireless terminal equipment through one or more sectors on the air interface, or other names.
  • the network device can be used to exchange received air frames with Internet Protocol (IP) packets, and act as a router between the wireless terminal device and the rest of the access network, which can include the Internet. Protocol (IP) communication network.
  • IP Internet Protocol
  • the network devices may also coordinate attribute management for the air interface.
  • the network device involved in the embodiments of the present disclosure may be a network device (Base Transceiver Station, BTS) in the Global System for Mobile Communications (GSM) or Code Division Multiple Access (Code Division Multiple Access, CDMA). ), it can also be a network device (NodeB) in Wide-band Code Division Multiple Access (WCDMA), or it can be an evolved network device in a long term evolution (LTE) system (evolutional Node B, eNB or e-NodeB), 5G base station (gNB) in 5G network architecture (next generation system), or Home evolved Node B (HeNB), relay node (relay node) , a home base station (femto), a pico base station (pico), etc., which are not limited in the embodiments of the present disclosure.
  • a 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 geographically separated.
  • MIMO transmission can be single-user MIMO (Single User MIMO, SU-MIMO) or multi-user MIMO. (Multiple User MIMO, MU-MIMO). According to the form and number of root antenna combinations, MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, or diversity transmission, precoding transmission, or beamforming transmission.

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Abstract

本公开实施例提供一种随机接入方法、设备、装置及存储介质，应用于终端设备，该方法包括：确定用于发起随机接入的目标随机接入信道时机RO；根据所述目标RO，确定目标初始上行带宽部分BWP。通过本公开实施例提供的随机接入方法、设备、装置及存储介质，终端设备根据所选择的目标RO，确定自己对应的目标初始上行BWP，从而使得终端设备所选择的目标RO总是能在其初始上行BWP频域范围内，避免了RedCapUE无法在信道状况最佳的RO上发起随机接入，保证了随机接入的可靠性，提升了随机接入的成功率。

Description

随机接入方法、设备、装置及存储介质
相关申请的交叉引用
本申请要求于2021年03月30日提交的申请号为202110343477X，发明名称为“随机接入方法、设备、装置及存储介质”的中国专利申请的优先权，其通过引用方式全部并入本文。
技术领域
本公开涉及无线通信技术领域，尤其涉及一种随机接入方法、设备、装置及存储介质。
背景技术
在5G新无线(New Radio，NR)系统中，随着技术演进，需要支持一种能力降低的终端(Reduced Capability User Equipment，RedCap UE)。与普通UE相比，RedCap UE旨在降低终端的实现复杂度和成本，因此RedCap UE所支持的最大带宽会小于普通UE所支持的最大带宽，例如在6GHz载频以下时，普通UE所支持的最大带宽可以为100MHz，而RedCap UE所支持的最大带宽可能仅为20MHz。
无论何种UE，均需要向网络设备(如下一代节点B(next Generation Node B，gNB))发起随机接入，才能获得网络设备所提供的通信服务。具体地，以四步随机接入为例，UE测量gNB发送的同步信号块(Synchronization Signal Block，SSB)，选择信号强度较好的SSB(该SSB测得的参考信号接收功率(Reference Signal Received Power，RSRP)大于预定义的门限值)所对应的随机接入信道时机(Random Access Channel Occasion，RO)，在该RO上发送物理随机接入信道(Physical Random Access Channel，PRACH)，作为随机接入的第一步。所有的RO的频域范围均包括在初始上行带宽部分(initial Uplink Bandwidth Part，initial UL BWP)的频域范围内。然而，由于RedCap UE带宽小，其最大带宽可能小于initial UL BWP带宽。此时会存在如下问题：
(1)若RedCap UE仍然使用普通UE所用的RO，有可能RedCap UE所 选的RO在自己的频带之外，导致无法选择最优的RO发送PRACH。
(2)若RedCap UE的最大带宽小于initial UL BWP带宽，则可能无法正确地在initial UL BWP中工作。
发明内容
针对现有技术存在的问题，本公开实施例提供一种随机接入方法、设备、装置及存储介质。
第一方面，本公开实施例提供一种随机接入方法，应用于终端设备，所述方法包括：
确定用于发起随机接入的目标随机接入信道时机RO；
根据所述目标RO，确定目标初始上行带宽部分BWP。
可选地，所述方法还包括：
接收网络设备发送的至少一个初始上行BWP候选的配置信息和至少一个RO的配置信息；
所述根据所述目标RO，确定目标初始上行带宽部分BWP，包括：
根据所确定的目标RO，在所述至少一个初始上行BWP候选中确定所述目标初始上行BWP。
可选地，各所述初始上行BWP候选所对应的RO的集合之间不重叠；
所述根据所确定的目标RO，在所述至少一个初始上行BWP候选中确定所述目标初始上行BWP，包括：
根据所确定的目标RO所对应的初始上行BWP候选，确定所述目标初始上行BWP。
可选地，各所述初始上行BWP候选所对应的RO的集合之间不重叠、且对应同一个同步信号块SSB的RO对应同一个初始上行BWP候选；
所述根据所确定的目标RO，在所述至少一个初始上行BWP候选中确定所述目标初始上行BWP，包括：
根据所确定的目标RO所对应的初始上行BWP候选，确定所述目标初始上行BWP。
可选地，各所述初始上行BWP候选所对应的RO的集合之间存在重叠；
所述根据所确定的目标RO，在所述至少一个初始上行BWP候选中确定所述目标初始上行BWP，包括以下任一种：
确定所述目标RO所对应的至少一个初始上行BWP候选，根据各初始上行BWP候选分别对应的优先级确定所述目标初始上行BWP；
确定所述目标RO所对应的至少一个初始上行BWP候选，根据各初始上行BWP候选分别对应的起始频率和/或中心频率确定所述目标初始上行BWP；
根据所述目标RO对应的第一指示信息，确定所述目标初始上行BWP，所述第一指示信息用于指示每个RO唯一对应的初始上行BWP候选。
可选地，所述初始上行BWP候选所对应的RO为频域范围包括在所述初始上行BWP候选的频域范围内的RO。
可选地，所述根据所述目标RO，确定目标初始上行带宽部分BWP，包括以下任一种：
确定所述目标RO对应的起始频率或中心频率，根据所述起始频率或中心频率确定目标初始上行BWP；其中，所述目标初始上行BWP对应的频域范围的中心频率与所述目标RO对应的起始频率或中心频率相同，所述目标初始上行BWP对应的频域范围的频域宽度为网络设备指示的或者为预定义的；
确定所述目标RO对应的起始频率，根据所述起始频率确定目标初始上行BWP；其中，所述目标初始上行BWP对应的频域范围的起始频率与所述目标RO对应的起始频率相同，所述目标初始上行BWP对应的频域范围的频域宽度为网络设备指示的或者为预定义的。
可选地，所述根据所述目标RO，确定目标初始上行带宽部分BWP，包括以下任一种：
确定所述目标RO对应的指定RO所对应的起始频率或中心频率，根据所述起始频率或中心频率确定目标初始上行BWP；其中，所述目标初始上行BWP对应的频域范围的中心频率与所述指定RO对应的起始频率或中心频率 相同，所述目标初始上行BWP对应的频域范围的频域宽度为网络设备指示的或者为预定义的；
确定所述目标RO对应的指定RO所对应的起始频率，根据所述起始频率确定目标初始上行BWP；其中，所述目标初始上行BWP对应的频域范围的起始频率与所述指定RO对应的起始频率相同，所述目标初始上行BWP对应的频域范围的频域宽度为网络设备指示的或者为预定义的。
第二方面，本公开实施例还提供一种随机接入方法，应用于网络设备，所述方法包括：
确定终端设备用于发起随机接入的目标随机接入信道时机RO；
根据所述目标RO，确定所述终端设备对应的目标初始上行带宽部分BWP。
可选地，所述方法还包括：
向所述终端设备发送至少一个初始上行BWP候选的配置信息和至少一个RO的配置信息；
所述根据所述目标RO，确定所述终端设备对应的目标初始上行带宽部分BWP，包括：
根据所确定的目标RO，在所述至少一个初始上行BWP候选中确定所述终端设备对应的目标初始上行BWP。
可选地，各所述初始上行BWP候选所对应的RO的集合之间不重叠；
所述根据所确定的目标RO，在所述至少一个初始上行BWP候选中确定所述终端设备对应的目标初始上行BWP，包括：
根据所确定的目标RO所对应的初始上行BWP候选，确定所述终端设备对应的目标初始上行BWP。
可选地，各所述初始上行BWP候选所对应的RO的集合之间不重叠、且对应同一个同步信号块SSB的RO对应同一个初始上行BWP候选；
所述根据所确定的目标RO，在所述至少一个初始上行BWP候选中确定所述终端设备对应的目标初始上行BWP，包括：
根据所确定的目标RO所对应的初始上行BWP候选，确定所述终端设备 对应的目标初始上行BWP。
可选地，各所述初始上行BWP候选所对应的RO的集合之间存在重叠；
所述根据所确定的目标RO，在所述至少一个初始上行BWP候选中确定所述终端设备对应的目标初始上行BWP，包括以下任一种：
确定所述目标RO所对应的至少一个初始上行BWP候选，根据各初始上行BWP候选分别对应的优先级确定所述终端设备对应的目标初始上行BWP；
确定所述目标RO所对应的至少一个初始上行BWP候选，根据各初始上行BWP候选分别对应的起始频率和/或中心频率确定所述终端设备对应的目标初始上行BWP；
根据所述目标RO对应的第一指示信息，确定所述终端设备对应的目标初始上行BWP，所述第一指示信息用于指示每个RO唯一对应的初始上行BWP候选。
可选地，所述初始上行BWP候选所对应的RO为频域范围包括在所述初始上行BWP候选的频域范围内的RO。
可选地，所述根据所述目标RO，确定所述终端设备对应的目标初始上行带宽部分BWP，包括以下任一种：
确定所述目标RO对应的起始频率或中心频率，根据所述起始频率或中心频率确定所述终端设备对应的目标初始上行BWP；其中，所述目标初始上行BWP对应的频域范围的中心频率与所述目标RO对应的起始频率或中心频率相同，所述目标初始上行BWP对应的频域范围的频域宽度为所述网络设备指示给所述终端设备的或者为预定义的；
确定所述目标RO对应的起始频率，根据所述起始频率确定所述终端设备对应的目标初始上行BWP；其中，所述目标初始上行BWP对应的频域范围的起始频率与所述目标RO对应的起始频率相同，所述目标初始上行BWP对应的频域范围的频域宽度为所述网络设备指示给所述终端设备的或者为预定义的。
可选地，所述根据所述目标RO，确定所述终端设备对应的目标初始上行带宽部分BWP，包括以下任一种：
确定所述目标RO对应的指定RO所对应的起始频率或中心频率，根据所述起始频率或中心频率确定所述终端设备对应的目标初始上行BWP；其中，所述目标初始上行BWP对应的频域范围的中心频率与所述指定RO对应的起始频率或中心频率相同，所述目标初始上行BWP对应的频域范围的频域宽度为所述网络设备指示给所述终端设备的或者为预定义的；
确定所述目标RO对应的指定RO所对应的起始频率，根据所述起始频率确定所述终端设备对应的目标初始上行BWP；其中，所述目标初始上行BWP对应的频域范围的起始频率与所述指定RO对应的起始频率相同，所述目标初始上行BWP对应的频域范围的频域宽度为所述网络设备指示给所述终端设备的或者为预定义的。
第三方面，本公开实施例还提供一种终端设备，包括存储器，收发机，处理器，其中：
存储器，用于存储计算机程序；收发机，用于在所述处理器的控制下收发数据；处理器，用于读取所述存储器中的计算机程序并实现如上所述第一方面所述的随机接入方法的步骤。
第四方面，本公开实施例还提供一种网络设备，包括存储器，收发机，处理器，其中：
存储器，用于存储计算机程序；收发机，用于在所述处理器的控制下收发数据；处理器，用于读取所述存储器中的计算机程序并实现如上所述第二方面所述的随机接入方法的步骤。
第五方面，本公开实施例还提供一种随机接入装置，应用于终端设备，所述装置包括：
第一确定单元，用于确定用于发起随机接入的目标随机接入信道时机RO；
第二确定单元，用于根据所述目标RO，确定目标初始上行带宽部分BWP。
第六方面，本公开实施例还提供一种随机接入装置，应用于网络设备，所述装置包括：
第三确定单元，用于确定终端设备用于发起随机接入的目标随机接入信道时机RO；
第四确定单元，用于根据所述目标RO，确定所述终端设备对应的目标初始上行带宽部分BWP。
第七方面，本公开实施例还提供一种处理器可读存储介质，所述处理器可读存储介质存储有计算机程序，所述计算机程序用于使所述处理器执行如上所述第一方面所述的随机接入方法的步骤，或执行如上所述第二方面所述的随机接入方法的步骤。
本公开实施例提供的随机接入方法、设备、装置及存储介质，终端设备根据所选择的目标RO，确定自己对应的目标初始上行BWP，从而使得终端设备所选择的目标RO总是能在其初始上行BWP频域范围内，避免了RedCap UE无法在信道状况最佳的RO上发起随机接入，保证了随机接入的可靠性，提升了随机接入的成功率。
附图说明
为了更清楚地说明本公开实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附图是本公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是现有技术提供的initial UL BWP与RO在频域上的位置示意图；
图2是本公开实施例提供的随机接入方法的流程示意图之一；
图3是本公开实施例提供的随机接入方法的实施示意图之一；
图4是本公开实施例提供的随机接入方法的实施示意图之二；
图5是本公开实施例提供的随机接入方法的实施示意图之三；
图6是本公开实施例提供的随机接入方法的实施示意图之四；
图7是本公开实施例提供的随机接入方法的流程示意图之二；
图8是本公开实施例提供的终端设备的结构示意图；
图9是本公开实施例提供的网络设备的结构示意图；
图10是本公开实施例提供的随机接入装置的结构示意图之一；
图11是本公开实施例提供的随机接入装置的结构示意图之二。
具体实施方式
本公开实施例中术语“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。
本公开实施例中术语“多个”是指两个或两个以上，其它量词与之类似。
下面将结合本公开实施例中的附图，对本公开实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本公开一部分实施例，并不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。
现有NR中，网络设备(如gNB)广播发送SSB、initial UL BWP的配置信息以及RO的配置信息。其中，网络设备可以发送多个SSB，SSB与RO之间存在一定的映射关系，它们之间可以是多对一、一对一或一对多的对应关系，映射关系指示信息也是包含在RO配置信息中的。
图1为现有技术提供的initial UL BWP与RO在频域上的位置示意图。如图1所示，在频域上有8个频分的RO，8个RO与4个SSB对应，对应不同SSB的RO用不同的图案区分(图中SSB未示出)。但由于RedCap UE的带宽小于initial UL BWP，因此一个RedCap initial UL BWP在频域上可能无法包括所有的RO，这导致一个RedCap UE可能无法选择最优的RO进行随机接入。例如，在图1中，假设RedCap initial UL BWP与现有initial UL BWP类似，是唯一的，且与现有initial UL BWP中心频率相同，则其无法在RO_0、RO_1或者RO_6、RO_7中发起随机接入。
目前一般通过gNB广播配置的方式，让UE确定唯一一个频域范围固定的、公共的initial UL BWP；若RedCap initial UL BWP按照类似的方法实现，则可能导致RedCap UE接收到信号最好的SSB所对应的RO在RedCap initial  UL BWP频域范围之外，RedCap UE无法在信道状况最佳的RO上发起随机接入，降低随机接入期间收发信号的强度，也降低了随机接入的成功率。此时可能需要引入新的RedCap专属initial UL BWP；但目前尚无定义新的RedCap专属initial UL BWP的方法。
针对上述问题，本公开各实施例提供一种解决方案，其核心思想为：RedCap UE根据所选择的RO，确定自己对应的RedCap initial UL BWP；对应地，网络设备根据RedCap UE发起随机接入的RO，确定RedCap UE的RedCap initial UL BWP，从而能够使得RedCap UE所选的RO总是能在其RedCap initial UL BWP频域范围内，保证了随机接入的可靠性，提升了随机接入的成功率。
图2为本公开实施例提供的随机接入方法的流程示意图，该方法应用于终端设备，如图2所示，该方法包括如下步骤：
步骤200、确定用于发起随机接入的目标随机接入信道时机RO；
具体地，终端设备需要向网络设备(例如gNB)发起随机接入，才能获得网络设备所提供的通信服务。为此，终端设备首先测量网络设备发送的SSB，并根据网络设备发送的RO配置信息选择信号强度较好的SSB(该SSB测得的RSRP大于预定义的门限值)所对应的RO作为向网络设备发起随机接入所用的目标RO，以便在该目标RO上向网络设备发送PRACH，作为随机接入的第一步。本公开主要以四步随机接入为例，该PRACH可以是四步随机接入中的消息1(Message 1，Msg1)；本公开也可以用于两步随机接入，此时该PRACH可以是两步随机接入中的消息A(Message A，MsgA)中的PRACH。
步骤201、根据目标RO，确定目标初始上行带宽部分BWP。
具体地，终端设备确定用于向网络设备发起随机接入的目标RO后，可以根据该目标RO，确定自己对应的初始上行BWP，即目标初始上行BWP。相应地，网络设备在该目标RO中检测到PRACH，则网络设备可以根据终端设备发起随机接入的该目标RO，确定该终端设备所对应的目标初始上行BWP。
可选地，终端设备确定目标RO和目标初始上行BWP后，其在随机接入阶段的上行发送可以均在所确定的目标初始上行BWP中进行，在随机接入阶段的上行发送包括PRACH、消息3(Message 3，Msg3)、对消息4(Message 4，Msg4)的物理上行控制信道(Physical Uplink Control Channel，PUCCH)反馈，或者MsgA(2-step RACH方式下特有)中的物理上行共享信道(Physical Uplink Shared Channel，PUSCH)、对消息B(Message B，MsgB)的PUCCH反馈，等等。这种方式可以简化终端设备在随机接入阶段的发送，终端设备无需在初始接入阶段就在多个BWP之间进行切换。
本公开各实施例以RedCap UE需要向网络设备发起随机接入为例进行说明，当然本领域技术人员可以获知，本公开各实施例的技术方案并不局限于RedCap UE发起随机接入的场景，其他类型的终端设备同样也可以适用，例如窄带终端，物联终端等等。为了后续论述方便，本公开各实施例仅以RedCap UE为例进行介绍。
本公开实施例提供的随机接入方法，终端设备根据所选择的目标RO，确定自己对应的目标初始上行BWP，从而使得终端设备所选择的目标RO总是能在其初始上行BWP频域范围内，避免了RedCap UE无法在信道状况最佳的RO上发起随机接入，保证了随机接入的可靠性，提升了随机接入的成功率。
可选地，所述方法还包括：
接收网络设备发送的至少一个初始上行BWP候选的配置信息和至少一个RO的配置信息；
所述根据目标RO，确定目标初始上行带宽部分BWP，包括：
根据所确定的目标RO，在至少一个初始上行BWP候选中确定目标初始上行BWP。
具体地，终端设备在确定目标初始上行BWP之前，还可以接收网络设备发送的至少一个初始上行BWP候选的配置信息和至少一个RO的配置信息，从而根据所确定的目标RO，在至少一个初始上行BWP候选中确定其中一个为目标初始上行BWP。
其中，网络设备发送配置信息可以通过多种方式实现，例如广播发送、单播或者组播通知等。初始上行BWP候选的配置信息中至少包括各初始上行BWP候选的频域位置。
可选地，网络设备发送的至少一个初始上行BWP候选的配置信息中各初始上行BWP候选之间可以仅有频域位置不同，其余的配置均相同(如频域宽度、PUSCH配置、PUCCH配置等)，例如，各初始上行BWP候选之间共享除频域位置之外的其他配置信息。这种方式可以降低发送初始上行BWP候选的配置信息的开销。
本公开实施例提供的随机接入方法，终端设备可以接收网络设备发送的至少一个初始上行BWP候选的配置信息和至少一个RO的配置信息，从而根据所确定的目标RO，在至少一个初始上行BWP候选中确定其中一个为目标初始上行BWP，避免了RedCap UE无法在信道状况最佳的RO上发起随机接入，保证了随机接入的可靠性，提升了随机接入的成功率。
可选地，各初始上行BWP候选所对应的RO的集合之间不重叠；
根据所确定的目标RO，在至少一个初始上行BWP候选中确定目标初始上行BWP，包括：
根据所确定的目标RO所对应的初始上行BWP候选，确定目标初始上行BWP。
具体地，终端设备在确定目标初始上行BWP之前，还可以接收网络设备发送的至少一个初始上行BWP候选的配置信息和至少一个RO的配置信息，其中，各初始上行BWP候选所对应的RO的集合之间不重叠。
需要说明的是，本公开各实施例中，每个初始上行BWP候选所对应的RO指的是频域范围包括在该初始上行BWP候选的频域范围内的RO，相应地，RO所对应的初始上行BWP候选指的是在频域上包括该RO的初始上行BWP候选。其中，包括可以是完全包括，即初始上行BWP候选的频域范围包括完整的RO频域范围，或者，包括也可以只是部分包括，即RO的频域范围仅有部分包括在初始上行BWP候选的频域范围内。
各初始上行BWP候选所对应的RO的集合之间不重叠，即表明各RO与 各初始上行BWP候选之间是“多对一”的对应关系，终端设备在确定目标RO之后，可以根据目标RO在频域上包括在哪个初始上行BWP候选中，来确定目标初始上行BWP，例如，目标RO在频域上包括在初始上行BWP候选1中，则将该初始上行BWP候选1确定为目标初始上行BWP。
本公开实施例提供的随机接入方法，终端设备接收的各初始上行BWP候选所对应的RO的集合之间不重叠，从而终端设备根据所确定的目标RO即可唯一确定目标初始上行BWP，提高了终端设备随机接入的效率。
图3为本公开实施例提供的随机接入方法的实施示意图，如图3所示，网络设备发送4个SSB(SSB_0、SSB_1、SSB_2、SSB_3)，在频域上配置有8个频分的RO(RO_0，RO_1，……RO_7)，8个RO与4个SSB对应，SSB_0对应RO_0和RO_1，SSB_1对应RO_2和RO_3，SSB_2对应RO_4和RO_5，SSB_3对应RO_6和RO_7，对应不同SSB的RO在图中用不同的图案区分，SSB在图中未画出。此外，网络设备广播发送了3个RedCap initial UL BWP候选配置信息，分别是RedCap initial UL BWP 0、RedCap initial UL BWP 1和RedCap initial UL BWP 2。初始上行BWP候选配置信息中包括了各初始上行BWP候选的频域范围指示信息，指示了各初始上行BWP候选的频域范围。优选地，各初始上行BWP候选的频域宽度均不超过RedCap UE所支持的最大带宽，这样可以保证RedCap UE无论选择哪个初始上行BWP候选作为目标初始上行BWP均可以正确地进行传输。
由图3可知，RedCap initial UL BWP 0在频域上包括的RO集合为{RO_0，RO_1，RO_2}，RedCap initial UL BWP 1包括的RO集合为{RO_3，RO_4，RO_5}，RedCap initial UL BWP 2包括的RO集合为{RO_6，RO_7}。可见，3个初始上行BWP候选所包括的RO集合各不相同，集合之间没有交叠。这种方法下，RO_0、RO_1、RO_2对应RedCap initial UL BWP 0，RO_3、RO_4、RO_5对应RedCap initial UL BWP 1，RO_6、RO_7对应RedCap initial UL BWP 2。
若某个RedCap UE测得SSB_0的RSRP大于预定义的门限值，则可选择SSB_0对应的RO_0或RO_1发起随机接入，也即在选择的RO中发送 PRACH；以选择RO_0为例，则该RedCap UE可以确定其RedCap initial UL BWP为RedCap initial UL BWP 0。类似的，若另一个RedCap UE测得SSB_1的RSRP大于预定义的门限值，则其可选择SSB_1对应的RO_2或RO_3发起随机接入，这种情况下，若该RedCap UE选择RO_2，则也确定RedCap initial UL BWP 0为其RedCap initial UL BWP，若该RedCap UE选择RO_3，则确定RedCap initial UL BWP 1为其RedCap initial UL BWP。
相应地，若gNB在RO_0中检测到PRACH，则gNB可以确定某个发起随机接入的RedCap UE以RedCap initial UL BWP 0为RedCap initial UL BWP。类似地，gNB在不同的RO中检测到PRACH则可以确定某个发起随机接入的RedCap UE所对应的RedCap initial UL BWP。
通过本实施例中的方法，在满足RedCap initial UL BWP不超过RedCap UE带宽的同时，还使得RedCap UE总是可以基于SSB的测量结果选择最佳的RO发起随机接入，保证了随机接入信道的信号质量，提升了随机接入的成功率。RO与RedCap initial UL BWP候选之间的“多对一”的对应方式，还使得gNB总是可以根据接收到PRACH的RO即可唯一确定发起随机接入的RedCap UE的RedCap initial UL BWP，降低了gNB的实现复杂度。
另外，“多对一”的对应关系的前提是在频域上有多个RO对应同一个RedCap initial UL BWP候选。也可能出现一个RO对应同一个RedCap initial UL BWP候选的情况，这种情况下则是“一对一”的对应关系。在“一对一”的对应关系下，本实施例中的分析也是适用的。
可选地，各初始上行BWP候选所对应的RO的集合之间不重叠、且对应同一个同步信号块SSB的RO对应同一个初始上行BWP候选；
根据所确定的目标RO，在至少一个初始上行BWP候选中确定目标初始上行BWP，包括：
根据所确定的目标RO所对应的初始上行BWP候选，确定目标初始上行BWP。
具体地，终端设备在确定目标初始上行BWP之前，还可以接收网络设备发送的至少一个初始上行BWP候选的配置信息和至少一个RO的配置信息， 其中，各初始上行BWP候选所对应的RO的集合之间不仅不重叠，而且若一个SSB对应有至少一个RO，则对应同一个SSB的至少一个RO均包括在同一个初始上行BWP候选中。这表明不仅各RO与各初始上行BWP候选之间是“多对一”的对应关系，而且各SSB与各初始上行BWP候选之间也是“多对一”的对应关系。
终端设备在确定目标RO之后，可以根据目标RO在频域上包括在哪个初始上行BWP候选中，来确定目标初始上行BWP，例如，目标RO在频域上包括在初始上行BWP候选2中，则将该初始上行BWP候选2确定为目标初始上行BWP。
本公开实施例提供的随机接入方法，终端设备接收的各初始上行BWP候选所对应的RO的集合之间不重叠，且对应同一个SSB的RO包括在同一个初始上行BWP候选中，从而终端设备根据所确定的目标RO即可唯一确定目标初始上行BWP，提高了终端设备随机接入的效率，且可以简化网络设备在初始上行BWP中需要维护的上下行波束关系。
图4为本公开实施例提供的随机接入方法的实施示意图，如图4所示，其中假设有2个初始上行BWP候选(RedCap initial UL BWP 0和RedCap initial UL BWP 1)。与图3所对应的实施例有所不同的是，本实施例中还多一个额外的限制：若一个SSB对应有多个RO，则对应同一个SSB的多个RO必须包括在同一个初始上行BWP候选中。
图4中，每个SSB对应两个RO(如SSB_0对应RO_0和RO_1，SSB_1对应RO_2和RO_3，SSB_2对应RO_4和RO_5，SSB_3对应RO_6和RO_7，对应不同SSB的RO在图中用不同的图案区分，SSB在图中未画出)，则对应同一个SSB的两个RO均包括在同一个初始上行BWP候选中，不会出现对应同一个SSB的两个RO一个包括在RedCap initial UL BWP 0、另一个包括在RedCap initial UL BWP 1的情况。这种情况下，不仅RO与RedCap initial UL BWP候选之间是“多对一”的对应关系，甚至SSB与RedCap initial UL BWP候选之间也(隐含地)是“多对一”的对应关系。
此外，本实施例相比图3所对应的实施例，还有一个额外的有益效果： gNB和UE之间的传输波束存在上下行波束对(beam pair)的对应关系。在初始接入阶段，下行波束以gNB发送的SSB表征，上行波束以UE发送的PRACH、Msg3等表征，本方法可以简化gNB在RedCap initial UL BWP中需要维护的上下行波束关系，gNB不需要在不同的初始上行BWP候选中维护对应同一个SSB的下行波束。
另外，“多对一”的对应关系的前提是在频域上有多个RO对应同一个RedCap initial UL BWP候选，或者多个SSB对应同一个RedCap initial UL BWP候选。也可能出现一个RO对应同一个RedCap initial UL BWP候选的情况，或者一个SSB对应同一个RedCap initial UL BWP的情况，这种情况下则是“一对一”的对应关系。在“一对一”的对应关系下，本实施例中的分析也是适用的。
可选地，各初始上行BWP候选所对应的RO的集合之间存在重叠；
所述根据所确定的目标RO，在至少一个初始上行BWP候选中确定目标初始上行BWP，包括以下任一种：
确定目标RO所对应的至少一个初始上行BWP候选，根据各初始上行BWP候选分别对应的优先级确定目标初始上行BWP；
确定目标RO所对应的至少一个初始上行BWP候选，根据各初始上行BWP候选分别对应的起始频率和/或中心频率确定目标初始上行BWP；
根据目标RO对应的第一指示信息，确定目标初始上行BWP，第一指示信息用于指示每个RO唯一对应的初始上行BWP候选。
具体地，终端设备在确定目标初始上行BWP之前，还可以接收网络设备发送的至少一个初始上行BWP候选的配置信息和至少一个RO的配置信息，其中，各初始上行BWP候选所对应的RO的集合之间存在重叠。这表明各RO与各初始上行BWP候选之间有可能是“多对多”的对应关系，或者“一对多”的对应关系。
由于一个RO有可能在频域上同时包括在两个初始上行BWP候选中(当然，也有可能存在部分RO仅对应一个初始上行BWP候选，这种情况下可唯一确定目标初始上行BWP)，终端设备在确定目标RO之后，仅根据目标RO 在频域上包括在哪个初始上行BWP候选中，并不能唯一确定目标初始上行BWP。
在这种情况下，终端设备可以根据各初始上行BWP候选分别对应的选择优先级来确定目标初始上行BWP。例如，目标RO在频域上同时包括在初始上行BWP候选1和初始上行BWP候选2中，且初始上行BWP候选1的选择优先级高于初始上行BWP候选2，则将初始上行BWP候选1确定为目标初始上行BWP。
其中，各初始上行BWP候选分别对应的选择优先级可以是网络设备发送给终端设备的。
可选地，终端设备也可以根据各初始上行BWP候选分别对应的起始频率和/或中心频率来确定目标初始上行BWP，例如，目标RO在频域上同时包括在初始上行BWP候选1和初始上行BWP候选2中，则将起始频率最低的初始上行BWP候选1确定为目标初始上行BWP。当然，也可以将起始频率最高或中心频率最低或中心频率最高的初始上行BWP候选确定为目标初始上行BWP。
需要说明的是，上述基于起始频率或中心频率进行确定目标初始上行BWP的举例并非穷举，还可以有多种确定规则，例如规定索引值较小的初始上行BWP候选具有较高的优先级。具体基于何种规则进行确定，可以通过预定义的方法，让终端设备可以在至少一个初始上行BWP候选中确定自己的目标初始上行BWP。
可选地，终端设备也可以根据接收网络设备发送的第一指示信息，来确定自己的目标初始上行BWP。其中，第一指示信息指示了每个RO唯一对应的一个初始上行BWP候选。
由于每个RO均被指示了唯一对应的一个初始上行BWP候选，因而终端设备在确定目标RO之后，可以将目标RO唯一对应的初始上行BWP候选确定为目标初始上行BWP，即便目标RO在频域上可能包括在多个初始上行BWP候选中。例如，虽然目标RO在频域上同时包括在初始上行BWP候选1和初始上行BWP候选2中，但网络设备指示了该目标RO对应初始上行 BWP候选1，则终端设备可以确定初始上行BWP候选1为目标初始上行BWP。
本公开实施例提供的随机接入方法，终端设备接收的各初始上行BWP候选所对应的RO的集合之间可以重叠，从而减少了对初始上行BWP候选的配置限制，提高了配置的灵活性。
图5为本公开实施例提供的随机接入方法的实施示意图，如图5所示，与图3或图4所对应的实施例不同的是，本实施例中RO与初始上行BWP候选之间没有类似“多对一”或“一对一”的约束关系。同一个RO可以对应多个初始上行BWP候选，初始上行BWP候选在频域上包括的RO集合之间可以存在交叠。
本实施例中，若所选的RO对应多个初始上行BWP候选，则RedCap UE在选择RO之外还需要从多个初始上行BWP候选中确定一个为RedCap initial UL BWP。可用的方法有：
(1)gNB广播初始上行BWP候选之间的选择优先级。
例如，gNB可以广播一个初始上行BWP候选之间的优先级顺序，例如0>1>2，该优先级顺序可以用于所有RO，则UE可以根据该优先级顺序确定RedCap initial UL BWP。例如若RedCap UE选择RO_2，则RedCap UE确定RedCap initial UL BWP 0为其初始上行BWP；若RedCap UE选择RO_4，则RedCap UE确定RedCap initial UL BWP 1为其初始上行BWP。由于优先级对于RO而言是公共的，所以指示开销小。
(2)通过预定义的方法，如RedCap UE选择起始/中心频域位置的频率最低/最高的初始上行BWP候选。
本方法不需要gNB广播额外信息，而是通过预定义的规则，让UE可以在多个初始上行BWP候选中确定自己的初始上行BWP。例如，可以规定，RedCap UE总是选择与所选RO交叠的多个初始上行BWP候选中起始位置频率最低的初始上行BWP候选作为其RedCap initial UL BWP。在该预定义的方法下，若RedCap UE选择了RO_3，RO_3对应RedCap initial UL BWP 0和RedCap initial UL BWP 1，由于RedCap initial UL BWP 0的起始频率位置低于 RedCap initial UL BWP 1，因此UE确定RedCap initial UL BWP 0为其初始上行BWP。类似地，也可以推广到基于初始上行BWP候选的中心频率位置进行选择，或者选择起始/中心频域位置的频率最高的初始上行BWP候选，等等。
(3)gNB广播每个RO对应的RedCap initial UL BWP。
类似(1)，gNB可以广播每个(对应了多个初始上行BWP候选的)RO所对应的RedCap initial UL BWP。例如，gNB可以指示，RO_2对应RedCap initial UL BWP 0，而RO_3对应RedCap initial UL BWP 1。由于初始上行BWP候选的指示是每个(对应了多个初始上行BWP候选的)RO均需要指示的，所以指示开销比(1)大，但是指示也更加灵活。
本实施例中的方法，对RedCap initial UL BWP候选的配置限制最小，配置最灵活。但需要额外的方法处理可能出现的“一个RO对应多个初始上行BWP候选”的情况。
可选地，所述根据目标RO，确定目标初始上行带宽部分BWP，包括以下任一种：
确定目标RO对应的起始频率或中心频率，根据起始频率或中心频率确定目标初始上行BWP；其中，目标初始上行BWP对应的频域范围的中心频率与目标RO对应的起始频率或中心频率相同，目标初始上行BWP对应的频域范围的频域宽度为网络设备指示的或者为预定义的；
确定目标RO对应的起始频率，根据起始频率确定目标初始上行BWP；其中，目标初始上行BWP对应的频域范围的起始频率与目标RO对应的起始频率相同，目标初始上行BWP对应的频域范围的频域宽度为网络设备指示的或者为预定义的。
具体地，终端设备确定用于向网络设备发起随机接入的目标RO后，可以根据该目标RO的频域范围以及预定义的规则，确定自己对应的目标初始上行BWP的频域范围。
例如，可以预定义目标初始上行BWP对应的频域范围的中心频率与目标RO对应的某个频率相同，如可以预定义目标初始上行BWP对应的频域范围 的中心频率与目标RO对应的中心频率相同，也可以预定义目标初始上行BWP对应的频域范围的中心频率与目标RO对应的起始频率相同，或者也可以预定义目标初始上行BWP对应的频域范围的中心频率与目标RO对应的其他频率相同。
再例如，可以预定义目标初始上行BWP对应的频域范围的起始频率与目标RO对应的起始频率相同，还可以预定义目标初始上行BWP对应的频域范围的终止频率与目标RO对应的终止频率相同，等等。
需要说明的是，上述频率相同可以是频率完全相等，也可以是频率不完全相等，存在一定的偏移量，例如目标RO的中心频率与目标初始上行BWP的中心频率相同可以是指“目标RO的中心频率”+“一个预定义/通知的偏移值”＝“目标初始上行BWP的中心频率”。
此外，目标初始上行BWP对应的频域范围的频域宽度可以网络设备指示的，如网络设备通过广播发送给终端设备的，也可以是预定义的。需要说明的是，目标初始上行BWP对应的频域范围的频域宽度既可以是固定不变的，也可以是根据目标RO的不同而具有不同的频域宽度。
本公开实施例提供的随机接入方法，目标初始上行BWP的频域范围可以根据目标RO的频域范围确定，而无需网络设备指示初始上行BWP候选的频域范围，从而可以降低网络设备发送配置信息的开销。
可选地，所述根据目标RO，确定目标初始上行带宽部分BWP，包括以下任一种：
确定目标RO对应的指定RO所对应的起始频率或中心频率，根据起始频率或中心频率确定目标初始上行BWP；其中，目标初始上行BWP对应的频域范围的中心频率与指定RO对应的起始频率或中心频率相同，目标初始上行BWP对应的频域范围的频域宽度为网络设备指示的或者为预定义的；
确定目标RO对应的指定RO所对应的起始频率，根据起始频率确定目标初始上行BWP；其中，目标初始上行BWP对应的频域范围的起始频率与指定RO对应的起始频率相同，目标初始上行BWP对应的频域范围的频域宽度为网络设备指示的或者为预定义的。
具体地，指定RO是指预定义的或者网络设备指示的用于确定目标初始上行BWP频域范围的RO。
与上述实施例有所不同的是，上述实施例中，所有RO均可以是用于确定目标初始上行BWP频域范围的RO，而本实施例中，只有部分RO(即频域位置不同的所有RO的子集)为指定RO，在这种情况下，终端设备确定用于向网络设备发起随机接入的目标RO后，需要先根据该目标RO所在的RO集合来确定该RO集合中的指定RO，例如该目标RO所在的RO集合可以是对应同一个SSB的多个RO的集合，该RO集合中存在至少一个指定RO，则可以根据该指定RO的频域范围以及预定义的规则，确定终端设备对应的目标初始上行BWP的频域范围。
本公开实施例提供的随机接入方法，目标初始上行BWP的频域范围可以根据与目标RO对应的指定RO的频域范围确定，而无需网络设备指示初始上行BWP候选的频域范围，从而可以降低网络设备发送配置信息的开销。
图6为本公开实施例提供的随机接入方法的实施示意图，如图6所示，网络设备发送4个SSB(SSB_0、SSB_1、SSB_2、SSB_3)，在频域上配置有4个频分的RO(RO_0，RO_1，RO_2，RO_3)，4个RO与4个SSB对应，SSB_0对应RO_0，SSB_1对应RO_1，SSB_2对应RO_2，SSB_3对应RO_3，SSB在图中未画出。对应不同SSB的RO在图中用不同的图案区分。
与图3-图5所对应的实施例不同的是，网络设备并未指示RedCap initial UL BWP的频域范围，也即，初始上行BWP候选的“频域位置”或“频域宽度”中的至少一个，是不通过网络设备直接指示的。初始上行BWP候选的频域范围可以根据特定RO确定，本实施例中假设频域位置不同的所有RO全部都为“可用于确定初始上行BWP候选”的特定RO。
如图6所示，本实施例中，频域位置不同的每个RO均对应一个RedCap initial UL BWP候选。其中，每个RO的频域中心位置即为其对应的RedCap initial UL BWP候选的频域中心位置；初始上行BWP候选的频域宽度是预定义的，且各初始上行BWP候选的频域宽度相同，例如预定义在频域范围1(Frequency Range 1，FR1，指在6GHz以下频段中)中宽度为20MHz，在 FR2(Frequency Range 2，指在毫米波频段中)中宽度为100MHz。
通过本实施例中的方法，RedCap UE选择某个RO，则可以根据该RO的频域信息以及预定义的规则，确定该RedCap UE对应的RedCap initial UL BWP的频域范围。例如，若RedCap UE选择RO_0进行接入，则其也可以根据RO_0确定其对应RedCap initial UL BWP 0的频域范围；网络设备也同理，若在RO_0中检测到RedCap UE发送的PRACH，则gNB可以确定某个发起随机接入的RedCap UE的初始上行BWP即RedCap initial UL BWP 0的频域范围。
在另一个实施例中，特定RO也可以是频域位置不同的所有RO的子集，例如可以是以预定义的方式确定的RO子集(如对应同一个SSB的多个RO中的频率最低的一个)，也可以是网络设备广播指示的RO子集；初始上行BWP候选的频域位置也可以有其他的确定或者对应方法，例如初始上行BWP候选的频域起始位置与RO的起始位置相同；初始上行BWP候选的频域宽度也可以是网络设备广播指示的，甚至可以是对每个初始上行BWP候选分别指示的，也即初始上行BWP候选的频域宽度可以不是统一的、公共的，而是独立的。
图7为本公开实施例提供的随机接入方法的流程示意图，该方法应用于网络设备，如图7所示，该方法包括如下步骤：
步骤700、确定终端设备用于发起随机接入的目标随机接入信道时机RO；
具体地，终端设备需要向网络设备(例如gNB)发起随机接入，才能获得网络设备所提供的通信服务。为此，终端设备首先测量网络设备发送的SSB，并根据网络设备发送的RO配置信息选择信号强度较好的SSB(该SSB测得的RSRP大于预定义的门限值)所对应的RO作为向网络设备发起随机接入所用的目标RO，并在该目标RO上向网络设备发送PRACH，作为随机接入的第一步。相应地，网络设备在该目标RO中检测到PRACH，则网络设备可以确定该发起随机接入的终端设备所选择的目标RO。
步骤701、根据目标RO，确定终端设备对应的目标初始上行带宽部分BWP。
具体地，网络设备确定发起随机接入的终端设备所选择的目标RO后，可以根据该目标RO，确定终端设备对应的初始上行BWP，即目标初始上行BWP。
本公开实施例提供的随机接入方法，网络设备根据检测到PRACH的RO确定终端设备所选择的目标RO，并根据该目标RO确定终端设备对应的目标初始上行BWP，从而使得终端设备所选择的目标RO总是能在目标初始上行BWP频域范围内，避免了RedCap UE无法在信道状况最佳的RO上发起随机接入，保证了随机接入的可靠性，提升了随机接入的成功率。
可选地，所述方法还包括：
向终端设备发送至少一个初始上行BWP候选的配置信息和至少一个RO的配置信息；
根据目标RO，确定终端设备对应的目标初始上行带宽部分BWP，包括：
根据所确定的目标RO，在至少一个初始上行BWP候选中确定终端设备对应的目标初始上行BWP。
具体地，网络设备在确定目标初始上行BWP之前，还可以向终端设备发送至少一个初始上行BWP候选的配置信息和至少一个RO的配置信息，从而使得终端设备根据所确定的目标RO，在至少一个初始上行BWP候选中确定其中一个为目标初始上行BWP。相应地，网络设备同样根据所确定的目标RO，在至少一个初始上行BWP候选中确定其中一个为目标初始上行BWP。
其中，网络设备发送配置信息可以通过多种方式实现，例如广播发送、单播或者组播通知等。初始上行BWP候选的配置信息中至少包括各初始上行BWP候选的频域位置。
可选地，网络设备发送的至少一个初始上行BWP候选的配置信息中各初始上行BWP候选之间可以仅有频域位置不同，其余的配置均相同(如频域宽度、PUSCH配置、PUCCH配置等)，例如，各初始上行BWP候选之间共享除频域位置之外的其他配置信息。这种方式可以降低发送初始上行BWP候选的配置信息的开销。
本公开实施例提供的随机接入方法，网络设备可以向终端设备发送至少 一个初始上行BWP候选的配置信息和至少一个RO的配置信息，并根据所确定的目标RO，在至少一个初始上行BWP候选中确定其中一个为终端设备对应的目标初始上行BWP，避免了RedCap UE无法在信道状况最佳的RO上发起随机接入，保证了随机接入的可靠性，提升了随机接入的成功率。
可选地，各初始上行BWP候选所对应的RO的集合之间不重叠；
所述根据所确定的目标RO，在至少一个初始上行BWP候选中确定终端设备对应的目标初始上行BWP，包括：
根据所确定的目标RO所对应的初始上行BWP候选，确定终端设备对应的目标初始上行BWP。
具体地，网络设备在确定目标初始上行BWP之前，还可以向终端设备发送至少一个初始上行BWP候选的配置信息和至少一个RO的配置信息，其中，各初始上行BWP候选所对应的RO的集合之间不重叠。
需要说明的是，本公开各实施例中，每个初始上行BWP候选所对应的RO指的是频域范围包括在该初始上行BWP候选的频域范围内的RO，相应地，RO所对应的初始上行BWP候选指的是在频域上包括该RO的初始上行BWP候选。其中，包括可以是完全包括，即初始上行BWP候选的频域范围包括完整的RO频域范围，或者，包括也可以只是部分包括，即RO的频域范围仅有部分包括在初始上行BWP候选的频域范围内。
各初始上行BWP候选所对应的RO的集合之间不重叠，即表明各RO与各初始上行BWP候选之间是“多对一”的对应关系，网络设备在确定目标RO之后，可以根据目标RO在频域上包括在哪个初始上行BWP候选中，来确定目标初始上行BWP，例如，目标RO在频域上包括在初始上行BWP候选1中，则将该初始上行BWP候选1确定为目标初始上行BWP。
本公开实施例提供的随机接入方法，网络设备向终端设备发送的各初始上行BWP候选所对应的RO的集合之间不重叠，从而使得终端设备和网络设备根据所确定的目标RO均可唯一确定目标初始上行BWP，提高了随机接入的效率。
可选地，各初始上行BWP候选所对应的RO的集合之间不重叠、且对应 同一个同步信号块SSB的RO对应同一个初始上行BWP候选；
所述根据所确定的目标RO，在至少一个初始上行BWP候选中确定终端设备对应的目标初始上行BWP，包括：
根据所确定的目标RO所对应的初始上行BWP候选，确定终端设备对应的目标初始上行BWP。
具体地，网络设备在确定目标初始上行BWP之前，还可以向终端设备发送至少一个初始上行BWP候选的配置信息和至少一个RO的配置信息，其中，各初始上行BWP候选所对应的RO的集合之间不仅不重叠，而且若一个SSB对应有至少一个RO，则对应同一个SSB的至少一个RO均包括在同一个初始上行BWP候选中。这表明不仅各RO与各初始上行BWP候选之间是“多对一”的对应关系，而且各SSB与各初始上行BWP候选之间也是“多对一”的对应关系。
网络设备在确定目标RO之后，可以根据目标RO在频域上包括在哪个初始上行BWP候选中，来确定目标初始上行BWP，例如，目标RO在频域上包括在初始上行BWP候选2中，则将该初始上行BWP候选2确定为目标初始上行BWP。
本公开实施例提供的随机接入方法，网络设备向终端设备发送的各初始上行BWP候选所对应的RO的集合之间不重叠，且对应同一个SSB的RO包括在同一个初始上行BWP候选中，从而终端设备和网络设备根据所确定的目标RO均可唯一确定目标初始上行BWP，提高了随机接入的效率，且可以简化网络设备在初始上行BWP中需要维护的上下行波束关系。
可选地，各初始上行BWP候选所对应的RO的集合之间存在重叠；
所述根据所确定的目标RO，在至少一个初始上行BWP候选中确定终端设备对应的目标初始上行BWP，包括以下任一种：
确定目标RO所对应的至少一个初始上行BWP候选，根据各初始上行BWP候选分别对应的优先级确定终端设备对应的目标初始上行BWP；
确定目标RO所对应的至少一个初始上行BWP候选，根据各初始上行BWP候选分别对应的起始频率和/或中心频率确定终端设备对应的目标初始 上行BWP；
根据目标RO对应的第一指示信息，确定终端设备对应的目标初始上行BWP，第一指示信息用于指示每个RO唯一对应的初始上行BWP候选。
具体地，网络设备在确定目标初始上行BWP之前，还可以向终端设备发送至少一个初始上行BWP候选的配置信息和至少一个RO的配置信息，其中，各初始上行BWP候选所对应的RO的集合之间存在重叠。这表明各RO与各初始上行BWP候选之间有可能是“多对多”的对应关系，或者“一对多”的对应关系。
由于一个RO有可能在频域上同时包括在两个初始上行BWP候选中(当然，也有可能存在部分RO仅对应一个初始上行BWP候选，这种情况下可唯一确定目标初始上行BWP)，终端设备在确定目标RO之后，仅根据目标RO在频域上包括在哪个初始上行BWP候选中，并不能唯一确定目标初始上行BWP。
在这种情况下，网络设备可以根据各初始上行BWP候选分别对应的选择优先级来确定目标初始上行BWP。例如，目标RO在频域上同时包括在初始上行BWP候选1和初始上行BWP候选2中，且初始上行BWP候选1的选择优先级高于初始上行BWP候选2，则将初始上行BWP候选1确定为目标初始上行BWP。
其中，各初始上行BWP候选分别对应的选择优先级可以是网络设备发送给终端设备的。
可选地，网络设备也可以根据各初始上行BWP候选分别对应的起始频率和/或中心频率来确定目标初始上行BWP，例如，目标RO在频域上同时包括在初始上行BWP候选1和初始上行BWP候选2中，则将起始频率最低的初始上行BWP候选1确定为目标初始上行BWP。当然，也可以将起始频率最高或中心频率最低或中心频率最高的初始上行BWP候选确定为目标初始上行BWP。
需要说明的是，上述基于起始频率或中心频率进行确定目标初始上行BWP的举例并非穷举，还可以有多种确定规则，例如规定索引值较小的初始 上行BWP候选具有较高的优先级。具体基于何种规则进行确定，可以通过预定义的方法，让网络设备可以在至少一个初始上行BWP候选中确定终端设备对应的目标初始上行BWP。
可选地，终端设备也可以根据接收网络设备发送的第一指示信息，来确定自己的目标初始上行BWP。其中，第一指示信息指示了每个RO唯一对应的一个初始上行BWP候选。相应地，网络设备同样也可以根据该第一指示信息中每个RO唯一对应的一个初始上行BWP候选来确定终端设备对应的目标初始上行BWP。
由于每个RO均被指示了唯一对应的一个初始上行BWP候选，因而网络设备在确定目标RO之后，可以将目标RO唯一对应的初始上行BWP候选确定为目标初始上行BWP，即便目标RO在频域上可能包括在多个初始上行BWP候选中。例如，虽然目标RO在频域上同时包括在初始上行BWP候选1和初始上行BWP候选2中，但网络设备指示了该目标RO对应初始上行BWP候选1，则可以确定初始上行BWP候选1为目标初始上行BWP。
本公开实施例提供的随机接入方法，网络设备向终端设备发送的各初始上行BWP候选所对应的RO的集合之间可以重叠，从而减少了对初始上行BWP候选的配置限制，提高了配置的灵活性。
可选地，所述根据目标RO，确定终端设备对应的目标初始上行带宽部分BWP，包括以下任一种：
确定目标RO对应的起始频率或中心频率，根据起始频率或中心频率确定终端设备对应的目标初始上行BWP；其中，目标初始上行BWP对应的频域范围的中心频率与目标RO对应的起始频率或中心频率相同，目标初始上行BWP对应的频域范围的频域宽度为网络设备指示给终端设备的或者为预定义的；
确定目标RO对应的起始频率，根据起始频率确定终端设备对应的目标初始上行BWP；其中，目标初始上行BWP对应的频域范围的起始频率与目标RO对应的起始频率相同，目标初始上行BWP对应的频域范围的频域宽度为网络设备指示给终端设备的或者为预定义的。
具体地，网络设备确定终端设备用于发起随机接入的目标RO后，可以根据该目标RO的频域范围以及预定义的规则，确定终端设备对应的目标初始上行BWP的频域范围。
例如，可以预定义目标初始上行BWP对应的频域范围的中心频率与目标RO对应的某个频率相同，如可以预定义目标初始上行BWP对应的频域范围的中心频率与目标RO对应的中心频率相同，也可以预定义目标初始上行BWP对应的频域范围的中心频率与目标RO对应的起始频率相同，或者也可以预定义目标初始上行BWP对应的频域范围的中心频率与目标RO对应的其他频率相同。
再例如，可以预定义目标初始上行BWP对应的频域范围的起始频率与目标RO对应的起始频率相同，还可以预定义目标初始上行BWP对应的频域范围的终止频率与目标RO对应的终止频率相同，等等。
需要说明的是，上述频率相同可以是频率完全相等，也可以是频率不完全相等，存在一定的偏移量，例如目标RO的中心频率与目标初始上行BWP的中心频率相同可以是指“目标RO的中心频率”+“一个预定义/通知的偏移值”＝“目标初始上行BWP的中心频率”。
此外，目标初始上行BWP对应的频域范围的频域宽度可以是网络设备指示给终端设备的配置信息中的初始上行BWP对应的频域范围的频域宽度，也可以是预定义的。需要说明的是，目标初始上行BWP对应的频域范围的频域宽度既可以是固定不变的，也可以是根据目标RO的不同而具有不同的频域宽度。
本公开实施例提供的随机接入方法，目标初始上行BWP的频域范围可以根据目标RO的频域范围确定，而无需网络设备指示初始上行BWP候选的频域范围，从而可以降低网络设备发送配置信息的开销。
可选地，所述根据目标RO，确定终端设备对应的目标初始上行带宽部分BWP，包括以下任一种：
确定目标RO对应的指定RO所对应的起始频率或中心频率，根据起始频率或中心频率确定终端设备对应的目标初始上行BWP；其中，目标初始上 行BWP对应的频域范围的中心频率与指定RO对应的起始频率或中心频率相同，目标初始上行BWP对应的频域范围的频域宽度为网络设备指示给终端设备的或者为预定义的；
确定目标RO对应的指定RO所对应的起始频率，根据起始频率确定终端设备对应的目标初始上行BWP；其中，目标初始上行BWP对应的频域范围的起始频率与指定RO对应的起始频率相同，目标初始上行BWP对应的频域范围的频域宽度为网络设备指示给终端设备的或者为预定义的。
具体地，指定RO是指预定义的或者网络设备指示给终端设备的用于确定目标初始上行BWP频域范围的RO。
与上述实施例有所不同的是，上述实施例中，所有RO均可以是用于确定目标初始上行BWP频域范围的RO，而本实施例中，只有部分RO(即频域位置不同的所有RO的子集)为指定RO，在这种情况下，网络设备确定终端设备用于发起随机接入的目标RO后，需要先根据该目标RO所在的RO集合来确定该RO集合中的指定RO，例如该目标RO所在的RO集合可以是对应同一个SSB的多个RO的集合，该RO集合中存在至少一个指定RO，则可以根据该指定RO的频域范围以及预定义的规则，确定终端设备对应的目标初始上行BWP的频域范围。
本公开实施例提供的随机接入方法，目标初始上行BWP的频域范围可以根据与目标RO对应的指定RO的频域范围确定，而无需网络设备指示初始上行BWP候选的频域范围，从而可以降低网络设备发送配置信息的开销。
本公开各实施例提供的方法和装置是基于同一申请构思的，由于方法和装置解决问题的原理相似，因此装置和方法的实施可以相互参见，重复之处不再赘述。
图8为本公开实施例提供的终端设备的结构示意图，如图8所示，该终端设备包括存储器820，收发机810和处理器800；其中，处理器800与存储器820也可以物理上分开布置。
存储器820，用于存储计算机程序；收发机810，用于在处理器800的控制下收发数据。
具体地，收发机810用于在处理器800的控制下接收和发送数据。
其中，在图8中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器800代表的一个或多个处理器和存储器820代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本公开不再对其进行进一步描述。总线接口提供接口。收发机810可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元，这些传输介质包括无线信道、有线信道、光缆等传输介质。针对不同的用户设备，用户接口830还可以是能够外接内接需要设备的接口，连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。
处理器800负责管理总线架构和通常的处理，存储器820可以存储处理器800在执行操作时所使用的数据。
处理器800可以是中央处理器(Central Processing Unit,CPU)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现场可编程门阵列(Field－Programmable Gate Array，FPGA)或复杂可编程逻辑器件(Complex Programmable Logic Device，CPLD)，处理器也可以采用多核架构。
处理器800通过调用存储器820存储的计算机程序，用于按照获得的可执行指令执行本公开实施例提供的任一所述方法，例如：确定用于发起随机接入的目标随机接入信道时机RO；根据目标RO，确定目标初始上行带宽部分BWP。
可选地，所述方法还包括：接收网络设备发送的至少一个初始上行BWP候选的配置信息和至少一个RO的配置信息；
根据目标RO，确定目标初始上行带宽部分BWP，包括：根据所确定的目标RO，在至少一个初始上行BWP候选中确定目标初始上行BWP。
可选地，各初始上行BWP候选所对应的RO的集合之间不重叠；
根据所确定的目标RO，在至少一个初始上行BWP候选中确定目标初始上行BWP，包括：根据所确定的目标RO所对应的初始上行BWP候选，确定目标初始上行BWP。
可选地，各初始上行BWP候选所对应的RO的集合之间不重叠、且对应同一个同步信号块SSB的RO对应同一个初始上行BWP候选；
根据所确定的目标RO，在至少一个初始上行BWP候选中确定目标初始上行BWP，包括：根据所确定的目标RO所对应的初始上行BWP候选，确定目标初始上行BWP。
可选地，各初始上行BWP候选所对应的RO的集合之间存在重叠；
根据所确定的目标RO，在至少一个初始上行BWP候选中确定目标初始上行BWP，包括以下任一种：确定目标RO所对应的至少一个初始上行BWP候选，根据各初始上行BWP候选分别对应的优先级确定目标初始上行BWP；确定目标RO所对应的至少一个初始上行BWP候选，根据各初始上行BWP候选分别对应的起始频率和/或中心频率确定目标初始上行BWP；根据目标RO对应的第一指示信息，确定目标初始上行BWP，第一指示信息用于指示每个RO唯一对应的初始上行BWP候选。
可选地，所述初始上行BWP候选所对应的RO为频域范围包括在初始上行BWP候选的频域范围内的RO。
可选地，所述根据目标RO，确定目标初始上行带宽部分BWP，包括以下任一种：确定目标RO对应的起始频率或中心频率，根据起始频率或中心频率确定目标初始上行BWP；其中，目标初始上行BWP对应的频域范围的中心频率与目标RO对应的起始频率或中心频率相同，目标初始上行BWP对应的频域范围的频域宽度为网络设备指示的或者为预定义的；确定目标RO对应的起始频率，根据起始频率确定目标初始上行BWP；其中，目标初始上行BWP对应的频域范围的起始频率与目标RO对应的起始频率相同，目标初始上行BWP对应的频域范围的频域宽度为网络设备指示的或者为预定义的。
可选地，所述根据目标RO，确定目标初始上行带宽部分BWP，包括以下任一种：确定目标RO对应的指定RO所对应的起始频率或中心频率，根据起始频率或中心频率确定目标初始上行BWP；其中，目标初始上行BWP对应的频域范围的中心频率与指定RO对应的起始频率或中心频率相同，目标初始上行BWP对应的频域范围的频域宽度为网络设备指示的或者为预定 义的；确定目标RO对应的指定RO所对应的起始频率，根据起始频率确定目标初始上行BWP；其中，目标初始上行BWP对应的频域范围的起始频率与指定RO对应的起始频率相同，目标初始上行BWP对应的频域范围的频域宽度为网络设备指示的或者为预定义的。
图9为本公开实施例提供的网络设备的结构示意图，如图9所示，该网络设备包括存储器920，收发机910和处理器900；其中，处理器900与存储器920也可以物理上分开布置。
存储器920，用于存储计算机程序；收发机910，用于在处理器900的控制下收发数据。
具体地，收发机910用于在处理器900的控制下接收和发送数据。
其中，在图9中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器900代表的一个或多个处理器和存储器920代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本公开不再对其进行进一步描述。总线接口提供接口。收发机910可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元，这些传输介质包括无线信道、有线信道、光缆等传输介质。处理器900负责管理总线架构和通常的处理，存储器920可以存储处理器900在执行操作时所使用的数据。
处理器900可以是CPU、ASIC、FPGA或CPLD，处理器也可以采用多核架构。
处理器900通过调用存储器920存储的计算机程序，用于按照获得的可执行指令执行本公开实施例提供的任一所述方法，例如：确定终端设备用于发起随机接入的目标随机接入信道时机RO；根据目标RO，确定终端设备对应的目标初始上行带宽部分BWP。
可选地，所述方法还包括：向终端设备发送至少一个初始上行BWP候选的配置信息和至少一个RO的配置信息；
所述根据目标RO，确定终端设备对应的目标初始上行带宽部分BWP， 包括：根据所确定的目标RO，在至少一个初始上行BWP候选中确定终端设备对应的目标初始上行BWP。
可选地，各初始上行BWP候选所对应的RO的集合之间不重叠；
所述根据所确定的目标RO，在至少一个初始上行BWP候选中确定终端设备对应的目标初始上行BWP，包括：根据所确定的目标RO所对应的初始上行BWP候选，确定终端设备对应的目标初始上行BWP。
可选地，各初始上行BWP候选所对应的RO的集合之间不重叠、且对应同一个同步信号块SSB的RO对应同一个初始上行BWP候选；
所述根据所确定的目标RO，在至少一个初始上行BWP候选中确定终端设备对应的目标初始上行BWP，包括：根据所确定的目标RO所对应的初始上行BWP候选，确定终端设备对应的目标初始上行BWP。
可选地，各初始上行BWP候选所对应的RO的集合之间存在重叠；
所述根据所确定的目标RO，在至少一个初始上行BWP候选中确定终端设备对应的目标初始上行BWP，包括以下任一种：确定目标RO所对应的至少一个初始上行BWP候选，根据各初始上行BWP候选分别对应的优先级确定终端设备对应的目标初始上行BWP；确定目标RO所对应的至少一个初始上行BWP候选，根据各初始上行BWP候选分别对应的起始频率和/或中心频率确定终端设备对应的目标初始上行BWP；根据目标RO对应的第一指示信息，确定终端设备对应的目标初始上行BWP，第一指示信息用于指示每个RO唯一对应的初始上行BWP候选。
可选地，所述初始上行BWP候选所对应的RO为频域范围包括在初始上行BWP候选的频域范围内的RO。
可选地，所述根据目标RO，确定终端设备对应的目标初始上行带宽部分BWP，包括以下任一种：确定目标RO对应的起始频率或中心频率，根据起始频率或中心频率确定终端设备对应的目标初始上行BWP；其中，目标初始上行BWP对应的频域范围的中心频率与目标RO对应的起始频率或中心频率相同，目标初始上行BWP对应的频域范围的频域宽度为网络设备指示给终端设备的或者为预定义的；确定目标RO对应的起始频率，根据起始频率确定 终端设备对应的目标初始上行BWP；其中，目标初始上行BWP对应的频域范围的起始频率与目标RO对应的起始频率相同，目标初始上行BWP对应的频域范围的频域宽度为网络设备指示给终端设备的或者为预定义的。
可选地，所述根据目标RO，确定终端设备对应的目标初始上行带宽部分BWP，包括以下任一种：确定目标RO对应的指定RO所对应的起始频率或中心频率，根据起始频率或中心频率确定终端设备对应的目标初始上行BWP；其中，目标初始上行BWP对应的频域范围的中心频率与指定RO对应的起始频率或中心频率相同，目标初始上行BWP对应的频域范围的频域宽度为网络设备指示给终端设备的或者为预定义的；确定目标RO对应的指定RO所对应的起始频率，根据起始频率确定终端设备对应的目标初始上行BWP；其中，目标初始上行BWP对应的频域范围的起始频率与指定RO对应的起始频率相同，目标初始上行BWP对应的频域范围的频域宽度为网络设备指示给终端设备的或者为预定义的。
在此需要说明的是，本公开实施例提供的上述终端设备和网络设备，能够实现上述方法实施例所实现的所有方法步骤，且能够达到相同的技术效果，在此不再对本实施例中与方法实施例相同的部分及有益效果进行具体赘述。
图10为本公开实施例提供的随机接入装置的结构示意图，该装置应用于终端设备，如图10所示，该装置包括：
第一确定单元1000，用于确定用于发起随机接入的目标随机接入信道时机RO；
第二确定单元1010，用于根据目标RO，确定目标初始上行带宽部分BWP。
可选地，所述装置还包括：
接收单元1020，用于接收网络设备发送的至少一个初始上行BWP候选的配置信息和至少一个RO的配置信息；
所述第二确定单元1010，用于：根据所确定的目标RO，在至少一个初始上行BWP候选中确定目标初始上行BWP。
可选地，各初始上行BWP候选所对应的RO的集合之间不重叠；
所述第二确定单元1010，用于：根据所确定的目标RO所对应的初始上行BWP候选，确定目标初始上行BWP。
可选地，各初始上行BWP候选所对应的RO的集合之间不重叠、且对应同一个同步信号块SSB的RO对应同一个初始上行BWP候选；
所述第二确定单元1010，用于：根据所确定的目标RO所对应的初始上行BWP候选，确定目标初始上行BWP。
可选地，各初始上行BWP候选所对应的RO的集合之间存在重叠；
所述第二确定单元1010，用于执行以下任一种步骤：
确定目标RO所对应的至少一个初始上行BWP候选，根据各初始上行BWP候选分别对应的优先级确定目标初始上行BWP；
确定目标RO所对应的至少一个初始上行BWP候选，根据各初始上行BWP候选分别对应的起始频率和/或中心频率确定目标初始上行BWP；
根据目标RO对应的第一指示信息，确定目标初始上行BWP，第一指示信息用于指示每个RO唯一对应的初始上行BWP候选。
可选地，所述初始上行BWP候选所对应的RO为频域范围包括在初始上行BWP候选的频域范围内的RO。
可选地，所述第二确定单元1010，用于执行以下任一种步骤：
确定目标RO对应的起始频率或中心频率，根据起始频率或中心频率确定目标初始上行BWP；其中，目标初始上行BWP对应的频域范围的中心频率与目标RO对应的起始频率或中心频率相同，目标初始上行BWP对应的频域范围的频域宽度为网络设备指示的或者为预定义的；
确定目标RO对应的起始频率，根据起始频率确定目标初始上行BWP；其中，目标初始上行BWP对应的频域范围的起始频率与目标RO对应的起始频率相同，目标初始上行BWP对应的频域范围的频域宽度为网络设备指示的或者为预定义的。
可选地，第二确定单元1010，用于执行以下任一种步骤：
确定目标RO对应的指定RO所对应的起始频率或中心频率，根据起始频率或中心频率确定目标初始上行BWP；其中，目标初始上行BWP对应的 频域范围的中心频率与指定RO对应的起始频率或中心频率相同，目标初始上行BWP对应的频域范围的频域宽度为网络设备指示的或者为预定义的；
确定目标RO对应的指定RO所对应的起始频率，根据起始频率确定目标初始上行BWP；其中，目标初始上行BWP对应的频域范围的起始频率与指定RO对应的起始频率相同，目标初始上行BWP对应的频域范围的频域宽度为网络设备指示的或者为预定义的。
图11为本公开实施例提供的随机接入装置的结构示意图，该装置应用于网络设备，如图11所示，该装置包括：
第三确定单元1100，用于确定终端设备用于发起随机接入的目标随机接入信道时机RO；
第四确定单元1110，用于根据目标RO，确定终端设备对应的目标初始上行带宽部分BWP。
可选地，所述装置还包括：
发送单元1120，用于向终端设备发送至少一个初始上行BWP候选的配置信息和至少一个RO的配置信息；
所述第四确定单元1110，用于：根据所确定的目标RO，在至少一个初始上行BWP候选中确定终端设备对应的目标初始上行BWP。
可选地，各初始上行BWP候选所对应的RO的集合之间不重叠；
所述第四确定单元1110，用于：根据所确定的目标RO所对应的初始上行BWP候选，确定终端设备对应的目标初始上行BWP。
可选地，各初始上行BWP候选所对应的RO的集合之间不重叠、且对应同一个同步信号块SSB的RO对应同一个初始上行BWP候选；
所述第四确定单元1110，用于：根据所确定的目标RO所对应的初始上行BWP候选，确定终端设备对应的目标初始上行BWP。
可选地，各初始上行BWP候选所对应的RO的集合之间存在重叠；
所述第四确定单元1110，用于执行以下任一种步骤：
确定目标RO所对应的至少一个初始上行BWP候选，根据各初始上行BWP候选分别对应的优先级确定终端设备对应的目标初始上行BWP；
确定目标RO所对应的至少一个初始上行BWP候选，根据各初始上行BWP候选分别对应的起始频率和/或中心频率确定终端设备对应的目标初始上行BWP；
根据目标RO对应的第一指示信息，确定终端设备对应的目标初始上行BWP，第一指示信息用于指示每个RO唯一对应的初始上行BWP候选。
可选地，所述初始上行BWP候选所对应的RO为频域范围包括在初始上行BWP候选的频域范围内的RO。
可选地，第四确定单元1110，用于执行以下任一种步骤：
确定目标RO对应的起始频率或中心频率，根据起始频率或中心频率确定终端设备对应的目标初始上行BWP；其中，目标初始上行BWP对应的频域范围的中心频率与目标RO对应的起始频率或中心频率相同，目标初始上行BWP对应的频域范围的频域宽度为网络设备指示给终端设备的或者为预定义的；
确定目标RO对应的起始频率，根据起始频率确定终端设备对应的目标初始上行BWP；其中，目标初始上行BWP对应的频域范围的起始频率与目标RO对应的起始频率相同，目标初始上行BWP对应的频域范围的频域宽度为网络设备指示给终端设备的或者为预定义的。
可选地，第四确定单元1110，用于执行以下任一种步骤：
确定目标RO对应的指定RO所对应的起始频率或中心频率，根据起始频率或中心频率确定终端设备对应的目标初始上行BWP；其中，目标初始上行BWP对应的频域范围的中心频率与指定RO对应的起始频率或中心频率相同，目标初始上行BWP对应的频域范围的频域宽度为网络设备指示给终端设备的或者为预定义的；
确定目标RO对应的指定RO所对应的起始频率，根据起始频率确定终端设备对应的目标初始上行BWP；其中，目标初始上行BWP对应的频域范围的起始频率与指定RO对应的起始频率相同，目标初始上行BWP对应的频域范围的频域宽度为网络设备指示给终端设备的或者为预定义的。
需要说明的是，本公开实施例中对单元的划分是示意性的，仅仅为一种 逻辑功能划分，实际实现时可以有另外的划分方式。另外，在本公开各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个处理器可读取存储介质中。基于这样的理解，本公开的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)或处理器(processor)执行本公开各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
在此需要说明的是，本公开实施例提供的上述装置，能够实现上述方法实施例所实现的所有方法步骤，且能够达到相同的技术效果，在此不再对本实施例中与方法实施例相同的部分及有益效果进行具体赘述。
另一方面，本公开实施例还提供一种处理器可读存储介质，所述处理器可读存储介质存储有计算机程序，所述计算机程序用于使所述处理器执行上述各实施例提供的随机接入方法，包括：确定用于发起随机接入的目标随机接入信道时机RO；根据目标RO，确定目标初始上行带宽部分BWP。
另一方面，本公开实施例还提供一种处理器可读存储介质，所述处理器可读存储介质存储有计算机程序，所述计算机程序用于使所述处理器执行上述各实施例提供的随机接入方法，包括：确定终端设备用于发起随机接入的目标随机接入信道时机RO；根据目标RO，确定终端设备对应的目标初始上行带宽部分BWP。
所述处理器可读存储介质可以是处理器能够存取的任何可用介质或数据存储设备，包括但不限于磁性存储器(例如软盘、硬盘、磁带、磁光盘(MO)等)、光学存储器(例如CD、DVD、BD、HVD等)、以及半导体存储器(例 如ROM、EPROM、EEPROM、非易失性存储器(NAND FLASH)、固态硬盘(SSD))等。
本领域内的技术人员应明白，本公开的实施例可提供为方法、系统、或计算机程序产品。因此，本公开可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本公开可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器和光学存储器等)上实施的计算机程序产品的形式。
本公开是参照根据本公开实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机可执行指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机可执行指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些处理器可执行指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的处理器可读存储器中，使得存储在该处理器可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些处理器可执行指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
本公开实施例提供的技术方案可以适用于多种系统，尤其是5G系统。例如适用的系统可以是全球移动通讯(global system of mobile communication，GSM)系统、码分多址(code division multiple access，CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)通用分组无 线业务(general packet radio service，GPRS)系统、长期演进(long term evolution，LTE)系统、LTE频分双工(frequency division duplex，FDD)系统、LTE时分双工(time division duplex，TDD)系统、高级长期演进(long term evolution advanced，LTE-A)系统、通用移动系统(universal mobile telecommunication system，UMTS)、全球互联微波接入(worldwide interoperability for microwave access，WiMAX)系统、5G新空口(New Radio,NR)系统等。这多种系统中均包括终端设备和网络设备。系统中还可以包括核心网部分，例如演进的分组系统(Evloved Packet System,EPS)、5G系统(5GS)等。
本公开实施例涉及的终端设备，可以是指向用户提供语音和/或数据连通性的设备，具有无线连接功能的手持式设备、或连接到无线调制解调器的其他处理设备等。在不同的系统中，终端设备的名称可能也不相同，例如在5G系统中，终端设备可以称为用户设备(User Equipment，UE)。无线终端设备可以经无线接入网(Radio Access Network,RAN)与一个或多个核心网(Core Network,CN)进行通信，无线终端设备可以是移动终端设备，如移动电话(或称为“蜂窝”电话)和具有移动终端设备的计算机，例如，可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置，它们与无线接入网交换语言和/或数据。例如，个人通信业务(Personal Communication Service，PCS)电话、无绳电话、会话发起协议(Session Initiated Protocol，SIP)话机、无线本地环路(Wireless Local Loop，WLL)站、个人数字助理(Personal Digital Assistant，PDA)等设备。无线终端设备也可以称为系统、订户单元(subscriber unit)、订户站(subscriber station)，移动站(mobile station)、移动台(mobile)、远程站(remote station)、接入点(access point)、远程终端设备(remote terminal)、接入终端设备(access terminal)、用户终端设备(user terminal)、用户代理(user agent)、用户装置(user device)，本公开实施例中并不限定。
本公开实施例涉及的网络设备，可以是基站，该基站可以包括多个为终端提供服务的小区。根据具体应用场合不同，基站又可以称为接入点，或者可以是接入网中在空中接口上通过一个或多个扇区与无线终端设备通信的设 备，或者其它名称。网络设备可用于将收到的空中帧与网际协议(Internet Protocol，IP)分组进行相互更换，作为无线终端设备与接入网的其余部分之间的路由器，其中接入网的其余部分可包括网际协议(IP)通信网络。网络设备还可协调对空中接口的属性管理。例如，本公开实施例涉及的网络设备可以是全球移动通信系统(Global System for Mobile communications，GSM)或码分多址接入(Code Division Multiple Access，CDMA)中的网络设备(Base Transceiver Station，BTS)，也可以是带宽码分多址接入(Wide-band Code Division Multiple Access，WCDMA)中的网络设备(NodeB)，还可以是长期演进(long term evolution，LTE)系统中的演进型网络设备(evolutional Node B，eNB或e-NodeB)、5G网络架构(next generation system)中的5G基站(gNB)，也可以是家庭演进基站(Home evolved Node B，HeNB)、中继节点(relay node)、家庭基站(femto)、微微基站(pico)等，本公开实施例中并不限定。在一些网络结构中，网络设备可以包括集中单元(centralized unit，CU)节点和分布单元(distributed unit，DU)节点，集中单元和分布单元也可以地理上分开布置。
网络设备与终端设备之间可以各自使用一或多根天线进行多输入多输出(Multi Input Multi Output,MIMO)传输，MIMO传输可以是单用户MIMO(Single User MIMO,SU-MIMO)或多用户MIMO(Multiple User MIMO,MU-MIMO)。根据根天线组合的形态和数量，MIMO传输可以是2D-MIMO、3D-MIMO、FD-MIMO或massive-MIMO，也可以是分集传输或预编码传输或波束赋形传输等。
显然，本领域的技术人员可以对本公开进行各种改动和变型而不脱离本公开的精神和范围。这样，倘若本公开的这些修改和变型属于本公开权利要求及其等同技术的范围之内，则本公开也意图包含这些改动和变型在内。

Claims (49)

  1. 一种随机接入方法，其特征在于，应用于终端设备，所述方法包括：
    确定用于发起随机接入的目标随机接入信道时机RO；
    根据所述目标RO，确定目标初始上行带宽部分BWP。
  2. 根据权利要求1所述的随机接入方法，其特征在于，所述方法还包括：
    接收网络设备发送的至少一个初始上行BWP候选的配置信息和至少一个RO的配置信息；
    所述根据所述目标RO，确定目标初始上行带宽部分BWP，包括：
    根据所确定的目标RO，在所述至少一个初始上行BWP候选中确定所述目标初始上行BWP。
  3. 根据权利要求2所述的随机接入方法，其特征在于，各所述初始上行BWP候选所对应的RO的集合之间不重叠；
    所述根据所确定的目标RO，在所述至少一个初始上行BWP候选中确定所述目标初始上行BWP，包括：
    根据所确定的目标RO所对应的初始上行BWP候选，确定所述目标初始上行BWP。
  4. 根据权利要求2所述的随机接入方法，其特征在于，各所述初始上行BWP候选所对应的RO的集合之间不重叠、且对应同一个同步信号块SSB的RO对应同一个初始上行BWP候选；
    所述根据所确定的目标RO，在所述至少一个初始上行BWP候选中确定所述目标初始上行BWP，包括：
    根据所确定的目标RO所对应的初始上行BWP候选，确定所述目标初始上行BWP。
  5. 根据权利要求2所述的随机接入方法，其特征在于，各所述初始上行BWP候选所对应的RO的集合之间存在重叠；
    所述根据所确定的目标RO，在所述至少一个初始上行BWP候选中确定所述目标初始上行BWP，包括以下任一种：
    确定所述目标RO所对应的至少一个初始上行BWP候选，根据各初始上 行BWP候选分别对应的优先级确定所述目标初始上行BWP；
    确定所述目标RO所对应的至少一个初始上行BWP候选，根据各初始上行BWP候选分别对应的起始频率和/或中心频率确定所述目标初始上行BWP；
    根据所述目标RO对应的第一指示信息，确定所述目标初始上行BWP，所述第一指示信息用于指示每个RO唯一对应的初始上行BWP候选。
  6. 根据权利要求3-5中任一项所述的随机接入方法，其特征在于，所述初始上行BWP候选所对应的RO为频域范围包括在所述初始上行BWP候选的频域范围内的RO。
  7. 根据权利要求1所述的随机接入方法，其特征在于，所述根据所述目标RO，确定目标初始上行带宽部分BWP，包括以下任一种：
    确定所述目标RO对应的起始频率或中心频率，根据所述起始频率或中心频率确定目标初始上行BWP；其中，所述目标初始上行BWP对应的频域范围的中心频率与所述目标RO对应的起始频率或中心频率相同，所述目标初始上行BWP对应的频域范围的频域宽度为网络设备指示的或者为预定义的；
    确定所述目标RO对应的起始频率，根据所述起始频率确定目标初始上行BWP；其中，所述目标初始上行BWP对应的频域范围的起始频率与所述目标RO对应的起始频率相同，所述目标初始上行BWP对应的频域范围的频域宽度为网络设备指示的或者为预定义的。
  8. 根据权利要求1所述的随机接入方法，其特征在于，所述根据所述目标RO，确定目标初始上行带宽部分BWP，包括以下任一种：
    确定所述目标RO对应的指定RO所对应的起始频率或中心频率，根据所述起始频率或中心频率确定目标初始上行BWP；其中，所述目标初始上行BWP对应的频域范围的中心频率与所述指定RO对应的起始频率或中心频率相同，所述目标初始上行BWP对应的频域范围的频域宽度为网络设备指示的或者为预定义的；
    确定所述目标RO对应的指定RO所对应的起始频率，根据所述起始频 率确定目标初始上行BWP；其中，所述目标初始上行BWP对应的频域范围的起始频率与所述指定RO对应的起始频率相同，所述目标初始上行BWP对应的频域范围的频域宽度为网络设备指示的或者为预定义的。
  9. 一种随机接入方法，其特征在于，应用于网络设备，所述方法包括：
    确定终端设备用于发起随机接入的目标随机接入信道时机RO；
    根据所述目标RO，确定所述终端设备对应的目标初始上行带宽部分BWP。
  10. 根据权利要求9所述的随机接入方法，其特征在于，所述方法还包括：
    向所述终端设备发送至少一个初始上行BWP候选的配置信息和至少一个RO的配置信息；
    所述根据所述目标RO，确定所述终端设备对应的目标初始上行带宽部分BWP，包括：
    根据所确定的目标RO，在所述至少一个初始上行BWP候选中确定所述终端设备对应的目标初始上行BWP。
  11. 根据权利要求10所述的随机接入方法，其特征在于，各所述初始上行BWP候选所对应的RO的集合之间不重叠；
    所述根据所确定的目标RO，在所述至少一个初始上行BWP候选中确定所述终端设备对应的目标初始上行BWP，包括：
    根据所确定的目标RO所对应的初始上行BWP候选，确定所述终端设备对应的目标初始上行BWP。
  12. 根据权利要求10所述的随机接入方法，其特征在于，各所述初始上行BWP候选所对应的RO的集合之间不重叠、且对应同一个同步信号块SSB的RO对应同一个初始上行BWP候选；
    所述根据所确定的目标RO，在所述至少一个初始上行BWP候选中确定所述终端设备对应的目标初始上行BWP，包括：
    根据所确定的目标RO所对应的初始上行BWP候选，确定所述终端设备对应的目标初始上行BWP。
  13. 根据权利要求10所述的随机接入方法，其特征在于，各所述初始上行BWP候选所对应的RO的集合之间存在重叠；
    所述根据所确定的目标RO，在所述至少一个初始上行BWP候选中确定所述终端设备对应的目标初始上行BWP，包括以下任一种：
    确定所述目标RO所对应的至少一个初始上行BWP候选，根据各初始上行BWP候选分别对应的优先级确定所述终端设备对应的目标初始上行BWP；
    确定所述目标RO所对应的至少一个初始上行BWP候选，根据各初始上行BWP候选分别对应的起始频率和/或中心频率确定所述终端设备对应的目标初始上行BWP；
    根据所述目标RO对应的第一指示信息，确定所述终端设备对应的目标初始上行BWP，所述第一指示信息用于指示每个RO唯一对应的初始上行BWP候选。
  14. 根据权利要求11-13中任一项所述的随机接入方法，其特征在于，所述初始上行BWP候选所对应的RO为频域范围包括在所述初始上行BWP候选的频域范围内的RO。
  15. 根据权利要求9所述的随机接入方法，其特征在于，所述根据所述目标RO，确定所述终端设备对应的目标初始上行带宽部分BWP，包括以下任一种：
    确定所述目标RO对应的起始频率或中心频率，根据所述起始频率或中心频率确定所述终端设备对应的目标初始上行BWP；其中，所述目标初始上行BWP对应的频域范围的中心频率与所述目标RO对应的起始频率或中心频率相同，所述目标初始上行BWP对应的频域范围的频域宽度为所述网络设备指示给所述终端设备的或者为预定义的；
    确定所述目标RO对应的起始频率，根据所述起始频率确定所述终端设备对应的目标初始上行BWP；其中，所述目标初始上行BWP对应的频域范围的起始频率与所述目标RO对应的起始频率相同，所述目标初始上行BWP对应的频域范围的频域宽度为所述网络设备指示给所述终端设备的或者为预定义的。
  16. 根据权利要求9所述的随机接入方法，其特征在于，所述根据所述目标RO，确定所述终端设备对应的目标初始上行带宽部分BWP，包括以下任一种：
    确定所述目标RO对应的指定RO所对应的起始频率或中心频率，根据所述起始频率或中心频率确定所述终端设备对应的目标初始上行BWP；其中，所述目标初始上行BWP对应的频域范围的中心频率与所述指定RO对应的起始频率或中心频率相同，所述目标初始上行BWP对应的频域范围的频域宽度为所述网络设备指示给所述终端设备的或者为预定义的；
    确定所述目标RO对应的指定RO所对应的起始频率，根据所述起始频率确定所述终端设备对应的目标初始上行BWP；其中，所述目标初始上行BWP对应的频域范围的起始频率与所述指定RO对应的起始频率相同，所述目标初始上行BWP对应的频域范围的频域宽度为所述网络设备指示给所述终端设备的或者为预定义的。
  17. 一种终端设备，包括存储器，收发机，处理器：
    存储器，用于存储计算机程序；收发机，用于在所述处理器的控制下收发数据；处理器，用于读取所述存储器中的计算机程序并执行以下操作：
    确定用于发起随机接入的目标随机接入信道时机RO；
    根据所述目标RO，确定目标初始上行带宽部分BWP。
  18. 根据权利要求17所述的终端设备，其特征在于，所述操作还包括：
    接收网络设备发送的至少一个初始上行BWP候选的配置信息和至少一个RO的配置信息；
    所述根据所述目标RO，确定目标初始上行带宽部分BWP，包括：
    根据所确定的目标RO，在所述至少一个初始上行BWP候选中确定所述目标初始上行BWP。
  19. 根据权利要求18所述的终端设备，其特征在于，各所述初始上行BWP候选所对应的RO的集合之间不重叠；
    所述根据所确定的目标RO，在所述至少一个初始上行BWP候选中确定所述目标初始上行BWP，包括：
    根据所确定的目标RO所对应的初始上行BWP候选，确定所述目标初始上行BWP。
  20. 根据权利要求18所述的终端设备，其特征在于，各所述初始上行BWP候选所对应的RO的集合之间不重叠、且对应同一个同步信号块SSB的RO对应同一个初始上行BWP候选；
    所述根据所确定的目标RO，在所述至少一个初始上行BWP候选中确定所述目标初始上行BWP，包括：
    根据所确定的目标RO所对应的初始上行BWP候选，确定所述目标初始上行BWP。
  21. 根据权利要求18所述的终端设备，其特征在于，各所述初始上行BWP候选所对应的RO的集合之间存在重叠；
    所述根据所确定的目标RO，在所述至少一个初始上行BWP候选中确定所述目标初始上行BWP，包括以下任一种：
    确定所述目标RO所对应的至少一个初始上行BWP候选，根据各初始上行BWP候选分别对应的优先级确定所述目标初始上行BWP；
    确定所述目标RO所对应的至少一个初始上行BWP候选，根据各初始上行BWP候选分别对应的起始频率和/或中心频率确定所述目标初始上行BWP；
    根据所述目标RO对应的第一指示信息，确定所述目标初始上行BWP，所述第一指示信息用于指示每个RO唯一对应的初始上行BWP候选。
  22. 根据权利要求19-21中任一项所述的终端设备，其特征在于，所述初始上行BWP候选所对应的RO为频域范围包括在所述初始上行BWP候选的频域范围内的RO。
  23. 根据权利要求17所述的终端设备，其特征在于，所述根据所述目标RO，确定目标初始上行带宽部分BWP，包括以下任一种：
    确定所述目标RO对应的起始频率或中心频率，根据所述起始频率或中心频率确定目标初始上行BWP；其中，所述目标初始上行BWP对应的频域范围的中心频率与所述目标RO对应的起始频率或中心频率相同，所述目标 初始上行BWP对应的频域范围的频域宽度为网络设备指示的或者为预定义的；
    确定所述目标RO对应的起始频率，根据所述起始频率确定目标初始上行BWP；其中，所述目标初始上行BWP对应的频域范围的起始频率与所述目标RO对应的起始频率相同，所述目标初始上行BWP对应的频域范围的频域宽度为网络设备指示的或者为预定义的。
  24. 根据权利要求17所述的终端设备，其特征在于，所述根据所述目标RO，确定目标初始上行带宽部分BWP，包括以下任一种：
    确定所述目标RO对应的指定RO所对应的起始频率或中心频率，根据所述起始频率或中心频率确定目标初始上行BWP；其中，所述目标初始上行BWP对应的频域范围的中心频率与所述指定RO对应的起始频率或中心频率相同，所述目标初始上行BWP对应的频域范围的频域宽度为网络设备指示的或者为预定义的；
    确定所述目标RO对应的指定RO所对应的起始频率，根据所述起始频率确定目标初始上行BWP；其中，所述目标初始上行BWP对应的频域范围的起始频率与所述指定RO对应的起始频率相同，所述目标初始上行BWP对应的频域范围的频域宽度为网络设备指示的或者为预定义的。
  25. 一种网络设备，包括存储器，收发机，处理器：
    存储器，用于存储计算机程序；收发机，用于在所述处理器的控制下收发数据；处理器，用于读取所述存储器中的计算机程序并执行以下操作：
    确定终端设备用于发起随机接入的目标随机接入信道时机RO；
    根据所述目标RO，确定所述终端设备对应的目标初始上行带宽部分BWP。
  26. 根据权利要求25所述的网络设备，其特征在于，所述操作还包括：
    向所述终端设备发送至少一个初始上行BWP候选的配置信息和至少一个RO的配置信息；
    所述根据所述目标RO，确定所述终端设备对应的目标初始上行带宽部分BWP，包括：
    根据所确定的目标RO，在所述至少一个初始上行BWP候选中确定所述终端设备对应的目标初始上行BWP。
  27. 根据权利要求26所述的网络设备，其特征在于，各所述初始上行BWP候选所对应的RO的集合之间不重叠；
    所述根据所确定的目标RO，在所述至少一个初始上行BWP候选中确定所述终端设备对应的目标初始上行BWP，包括：
    根据所确定的目标RO所对应的初始上行BWP候选，确定所述终端设备对应的目标初始上行BWP。
  28. 根据权利要求26所述的网络设备，其特征在于，各所述初始上行BWP候选所对应的RO的集合之间不重叠、且对应同一个同步信号块SSB的RO对应同一个初始上行BWP候选；
    所述根据所确定的目标RO，在所述至少一个初始上行BWP候选中确定所述终端设备对应的目标初始上行BWP，包括：
    根据所确定的目标RO所对应的初始上行BWP候选，确定所述终端设备对应的目标初始上行BWP。
  29. 根据权利要求26所述的网络设备，其特征在于，各所述初始上行BWP候选所对应的RO的集合之间存在重叠；
    所述根据所确定的目标RO，在所述至少一个初始上行BWP候选中确定所述终端设备对应的目标初始上行BWP，包括以下任一种：
    确定所述目标RO所对应的至少一个初始上行BWP候选，根据各初始上行BWP候选分别对应的优先级确定所述终端设备对应的目标初始上行BWP；
    确定所述目标RO所对应的至少一个初始上行BWP候选，根据各初始上行BWP候选分别对应的起始频率和/或中心频率确定所述终端设备对应的目标初始上行BWP；
    根据所述目标RO对应的第一指示信息，确定所述终端设备对应的目标初始上行BWP，所述第一指示信息用于指示每个RO唯一对应的初始上行BWP候选。
  30. 根据权利要求27-29中任一项所述的网络设备，其特征在于，所述 初始上行BWP候选所对应的RO为频域范围包括在所述初始上行BWP候选的频域范围内的RO。
  31. 根据权利要求25所述的网络设备，其特征在于，所述根据所述目标RO，确定所述终端设备对应的目标初始上行带宽部分BWP，包括以下任一种：
    确定所述目标RO对应的起始频率或中心频率，根据所述起始频率或中心频率确定所述终端设备对应的目标初始上行BWP；其中，所述目标初始上行BWP对应的频域范围的中心频率与所述目标RO对应的起始频率或中心频率相同，所述目标初始上行BWP对应的频域范围的频域宽度为所述网络设备指示给所述终端设备的或者为预定义的；
    确定所述目标RO对应的起始频率，根据所述起始频率确定所述终端设备对应的目标初始上行BWP；其中，所述目标初始上行BWP对应的频域范围的起始频率与所述目标RO对应的起始频率相同，所述目标初始上行BWP对应的频域范围的频域宽度为所述网络设备指示给所述终端设备的或者为预定义的。
  32. 根据权利要求25所述的网络设备，其特征在于，所述根据所述目标RO，确定所述终端设备对应的目标初始上行带宽部分BWP，包括以下任一种：
    确定所述目标RO对应的指定RO所对应的起始频率或中心频率，根据所述起始频率或中心频率确定所述终端设备对应的目标初始上行BWP；其中，所述目标初始上行BWP对应的频域范围的中心频率与所述指定RO对应的起始频率或中心频率相同，所述目标初始上行BWP对应的频域范围的频域宽度为所述网络设备指示给所述终端设备的或者为预定义的；
    确定所述目标RO对应的指定RO所对应的起始频率，根据所述起始频率确定所述终端设备对应的目标初始上行BWP；其中，所述目标初始上行BWP对应的频域范围的起始频率与所述指定RO对应的起始频率相同，所述目标初始上行BWP对应的频域范围的频域宽度为所述网络设备指示给所述终端设备的或者为预定义的。
  33. 一种随机接入装置，其特征在于，应用于终端设备，所述装置包括：
    第一确定单元，用于确定用于发起随机接入的目标随机接入信道时机RO；
    第二确定单元，用于根据所述目标RO，确定目标初始上行带宽部分BWP。
  34. 根据权利要求33所述的随机接入装置，其特征在于，所述装置还包括：
    接收单元，用于接收网络设备发送的至少一个初始上行BWP候选的配置信息和至少一个RO的配置信息；
    所述第二确定单元，用于：
    根据所确定的目标RO，在所述至少一个初始上行BWP候选中确定所述目标初始上行BWP。
  35. 根据权利要求34所述的随机接入装置，其特征在于，各所述初始上行BWP候选所对应的RO的集合之间不重叠；
    所述第二确定单元，用于：
    根据所确定的目标RO所对应的初始上行BWP候选，确定所述目标初始上行BWP。
  36. 根据权利要求34所述的随机接入装置，其特征在于，各所述初始上行BWP候选所对应的RO的集合之间不重叠、且对应同一个同步信号块SSB的RO对应同一个初始上行BWP候选；
    所述第二确定单元，用于：
    根据所确定的目标RO所对应的初始上行BWP候选，确定所述目标初始上行BWP。
  37. 根据权利要求34所述的随机接入装置，其特征在于，各所述初始上行BWP候选所对应的RO的集合之间存在重叠；
    所述第二确定单元，用于执行以下任一种步骤：
    确定所述目标RO所对应的至少一个初始上行BWP候选，根据各初始上行BWP候选分别对应的优先级确定所述目标初始上行BWP；
    确定所述目标RO所对应的至少一个初始上行BWP候选，根据各初始上行BWP候选分别对应的起始频率和/或中心频率确定所述目标初始上行BWP；
    根据所述目标RO对应的第一指示信息，确定所述目标初始上行BWP，所述第一指示信息用于指示每个RO唯一对应的初始上行BWP候选。
  38. 根据权利要求35-37中任一项所述的随机接入装置，其特征在于，所述初始上行BWP候选所对应的RO为频域范围包括在所述初始上行BWP候选的频域范围内的RO。
  39. 根据权利要求33所述的随机接入装置，其特征在于，所述第二确定单元，用于执行以下任一种步骤：
    确定所述目标RO对应的起始频率或中心频率，根据所述起始频率或中心频率确定目标初始上行BWP；其中，所述目标初始上行BWP对应的频域范围的中心频率与所述目标RO对应的起始频率或中心频率相同，所述目标初始上行BWP对应的频域范围的频域宽度为网络设备指示的或者为预定义的；
    确定所述目标RO对应的起始频率，根据所述起始频率确定目标初始上行BWP；其中，所述目标初始上行BWP对应的频域范围的起始频率与所述目标RO对应的起始频率相同，所述目标初始上行BWP对应的频域范围的频域宽度为网络设备指示的或者为预定义的。
  40. 根据权利要求33所述的随机接入装置，其特征在于，所述第二确定单元，用于执行以下任一种步骤：
    确定所述目标RO对应的指定RO所对应的起始频率或中心频率，根据所述起始频率或中心频率确定目标初始上行BWP；其中，所述目标初始上行BWP对应的频域范围的中心频率与所述指定RO对应的起始频率或中心频率相同，所述目标初始上行BWP对应的频域范围的频域宽度为网络设备指示的或者为预定义的；
    确定所述目标RO对应的指定RO所对应的起始频率，根据所述起始频率确定目标初始上行BWP；其中，所述目标初始上行BWP对应的频域范围 的起始频率与所述指定RO对应的起始频率相同，所述目标初始上行BWP对应的频域范围的频域宽度为网络设备指示的或者为预定义的。
  41. 一种随机接入装置，其特征在于，应用于网络设备，所述装置包括：
    第三确定单元，用于确定终端设备用于发起随机接入的目标随机接入信道时机RO；
    第四确定单元，用于根据所述目标RO，确定所述终端设备对应的目标初始上行带宽部分BWP。
  42. 根据权利要求41所述的随机接入装置，其特征在于，所述装置还包括：
    发送单元，用于向所述终端设备发送至少一个初始上行BWP候选的配置信息和至少一个RO的配置信息；
    所述第四确定单元，用于：
    根据所确定的目标RO，在所述至少一个初始上行BWP候选中确定所述终端设备对应的目标初始上行BWP。
  43. 根据权利要求42所述的随机接入装置，其特征在于，各所述初始上行BWP候选所对应的RO的集合之间不重叠；
    所述第四确定单元，用于：
    根据所确定的目标RO所对应的初始上行BWP候选，确定所述终端设备对应的目标初始上行BWP。
  44. 根据权利要求42所述的随机接入装置，其特征在于，各所述初始上行BWP候选所对应的RO的集合之间不重叠、且对应同一个同步信号块SSB的RO对应同一个初始上行BWP候选；
    所述第四确定单元，用于：
    根据所确定的目标RO所对应的初始上行BWP候选，确定所述终端设备对应的目标初始上行BWP。
  45. 根据权利要求42所述的随机接入装置，其特征在于，各所述初始上行BWP候选所对应的RO的集合之间存在重叠；
    所述第四确定单元，用于执行以下任一种步骤：
    确定所述目标RO所对应的至少一个初始上行BWP候选，根据各初始上行BWP候选分别对应的优先级确定所述终端设备对应的目标初始上行BWP；
    确定所述目标RO所对应的至少一个初始上行BWP候选，根据各初始上行BWP候选分别对应的起始频率和/或中心频率确定所述终端设备对应的目标初始上行BWP；
    根据所述目标RO对应的第一指示信息，确定所述终端设备对应的目标初始上行BWP，所述第一指示信息用于指示每个RO唯一对应的初始上行BWP候选。
  46. 根据权利要求43-45中任一项所述的随机接入装置，其特征在于，所述初始上行BWP候选所对应的RO为频域范围包括在所述初始上行BWP候选的频域范围内的RO。
  47. 根据权利要求41所述的随机接入装置，其特征在于，所述第四确定单元，用于执行以下任一种步骤：
    确定所述目标RO对应的起始频率或中心频率，根据所述起始频率或中心频率确定所述终端设备对应的目标初始上行BWP；其中，所述目标初始上行BWP对应的频域范围的中心频率与所述目标RO对应的起始频率或中心频率相同，所述目标初始上行BWP对应的频域范围的频域宽度为所述网络设备指示给所述终端设备的或者为预定义的；
    确定所述目标RO对应的起始频率，根据所述起始频率确定所述终端设备对应的目标初始上行BWP；其中，所述目标初始上行BWP对应的频域范围的起始频率与所述目标RO对应的起始频率相同，所述目标初始上行BWP对应的频域范围的频域宽度为所述网络设备指示给所述终端设备的或者为预定义的。
  48. 根据权利要求41所述的随机接入装置，其特征在于，所述第四确定单元，用于执行以下任一种步骤：
    确定所述目标RO对应的指定RO所对应的起始频率或中心频率，根据所述起始频率或中心频率确定所述终端设备对应的目标初始上行BWP；其中，所述目标初始上行BWP对应的频域范围的中心频率与所述指定RO对应 的起始频率或中心频率相同，所述目标初始上行BWP对应的频域范围的频域宽度为所述网络设备指示给所述终端设备的或者为预定义的；
    确定所述目标RO对应的指定RO所对应的起始频率，根据所述起始频率确定所述终端设备对应的目标初始上行BWP；其中，所述目标初始上行BWP对应的频域范围的起始频率与所述指定RO对应的起始频率相同，所述目标初始上行BWP对应的频域范围的频域宽度为所述网络设备指示给所述终端设备的或者为预定义的。
  49. 一种处理器可读存储介质，其特征在于，所述处理器可读存储介质存储有计算机程序，所述计算机程序用于使所述处理器执行权利要求1至8任一项所述的方法，或执行权利要求9至16任一项所述的方法。
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