WO2019096150A1 - 用于随机接入的方法、终端设备和网络设备 - Google Patents

用于随机接入的方法、终端设备和网络设备 Download PDF

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Publication number
WO2019096150A1
WO2019096150A1 PCT/CN2018/115361 CN2018115361W WO2019096150A1 WO 2019096150 A1 WO2019096150 A1 WO 2019096150A1 CN 2018115361 W CN2018115361 W CN 2018115361W WO 2019096150 A1 WO2019096150 A1 WO 2019096150A1
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Prior art keywords
random access
bwp
configuration parameter
terminal device
resource
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PCT/CN2018/115361
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English (en)
French (fr)
Inventor
常俊仁
曹振臻
李秉肇
徐海博
王学龙
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to RU2020119768A priority Critical patent/RU2772814C2/ru
Priority to AU2018369171A priority patent/AU2018369171A1/en
Priority to EP18877984.7A priority patent/EP3703459A4/en
Publication of WO2019096150A1 publication Critical patent/WO2019096150A1/zh
Priority to US16/875,134 priority patent/US11758586B2/en
Priority to AU2021266219A priority patent/AU2021266219B2/en
Priority to US18/447,056 priority patent/US20240032110A1/en

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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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0092—Indication of how the channel is divided
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1273—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of downlink data flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H04W74/004—Transmission of channel access control information in the uplink, i.e. towards network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H04W74/006—Transmission of channel access control information in the downlink, i.e. towards the terminal
    • 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 application relates to the field of communications, and more particularly to a method, a terminal device and a network device for random access.
  • BWP Bandwidth part
  • New Radio NR
  • the network device can configure one terminal device for one or more downlink BWPs and one or more uplink BWPs.
  • Each BWP corresponds to a set of configuration parameters, including: supported carrier spacing, bandwidth size, and frequency location.
  • the size of the bandwidth refers to the number of consecutive physical resource blocks (PRBs) included in the BWP, and the frequency location is the location of the BWP in the entire cell bandwidth or carrier bandwidth.
  • PRBs physical resource blocks
  • the corresponding BWP when the terminal device initially accesses may be generally referred to as an initial BWP (initial BWP).
  • initial BWP initial BWP
  • activation BWP the BWP for data transmission configured by the network device for the terminal device according to need.
  • the BWP can be dynamically activated/deactivated, and the BWP used by the terminal device can be quickly adjusted through dynamic activation/deactivation.
  • the terminal device when the terminal device is triggered to perform random access when performing data transmission on the currently activated BWP, for example, the first BWP, the terminal device performs random access on the first BWP, but this will result in random access. Failure failed.
  • the network device schedules the resource that the terminal device receives the random access response according to the configuration parameter of the first BWP, for example, the first configuration parameter, and the resource that the terminal device sends the random access message 3, if the configuration parameter of the first BWP (ie, The first configuration parameter is different from the configuration parameter of the BWP (ie, the initial BWP) that performs the random access before the terminal device.
  • the terminal device when the resource offset is different, the terminal device cannot determine the location where the network device sends the random access response message. And the resource that the terminal device sends the random access message 3. In this way, the terminal device will not successfully receive the random access response message, resulting in random access failure. For example, if there is no random access resource in the first BWP, the terminal device cannot successfully send a random access request, and the subsequent random access process cannot be continued, thereby causing random access failure.
  • the present application provides a method, a terminal device, and a network device for random access, which can improve the success rate of random access.
  • a method for random access comprising:
  • the terminal device performs data transmission according to a configuration parameter of the currently activated first bandwidth part BWP, where the configuration parameter of the first BWP includes at least one of a first resource offset, a first bandwidth, and a first subcarrier interval;
  • the terminal device Determining, by the terminal device, a first random access resource and a second configuration parameter for performing random access, where the second configuration parameter includes at least one of a second resource offset, a second bandwidth, and a second subcarrier interval;
  • the terminal device sends the random access request to the network device on the first random access resource
  • the terminal device receives a random access response according to the second configuration parameter, where the random access response is sent by the network device according to the random access request.
  • the terminal device may cause random access failure when performing data transmission on the currently activated BWP (ie, the first BWP). For example, the network device schedules, according to the first configuration parameter, the terminal device to receive the resource of the random access response, if the configuration parameter of the first BWP (ie, the first configuration parameter) and the BWP of the terminal device before performing the random access (ie, the initial BWP)
  • the configuration parameters are different. For example, when the resource offsets are different, the terminal device cannot determine the location where the network device sends the random access response message. In this way, the terminal device will not successfully receive the random access response message, resulting in random access failure. For example, if there is no random access resource in the first BWP, the terminal device cannot successfully send a random access request, and the subsequent random access process cannot be continued, thereby causing random access failure. Or, it may cause interference with other terminal devices.
  • the terminal device when the terminal device performs data transmission on the currently activated BWP, if the random access procedure is triggered, the random access is performed according to the first random access resource and the second configuration parameter, instead of Random access is performed on the currently activated BWP.
  • the network device When determining that the terminal device is triggered to perform random access, the network device performs a corresponding random access procedure on the first random access resource and the second configuration parameter.
  • the network device and the terminal device understand the same resource, because the terminal device can send the random access request on the first random access resource, and in the subsequent random access process, for example, the terminal device receives the random access response message. Therefore, the success rate of random access can be improved, and interference with other terminal devices can be reduced.
  • the method further includes: the terminal device sending a random access message 3 to the network device according to the random access response.
  • the terminal device receives the random access response according to the second configuration parameter, where the terminal device determines, according to the second configuration parameter, first scheduling information, where the first scheduling information is used to indicate a resource
  • the terminal device receives a random access response sent by the network device on the first resource.
  • the terminal device sends a random access message 3 to the network device according to the random access response, including:
  • the terminal device parses the second scheduling information carried by the random access response according to the second configuration parameter, where the second scheduling information is used to indicate the second resource;
  • the terminal device sends the random access message 3 to the network device on the second resource.
  • the first random access resource and the second configuration parameter are associated with the first BWP;
  • the first random access resource and the second configuration parameter are associated with the second BWP; or
  • the first random access resource is a cell-specific random access resource, and the cell-specific random access resource is associated with the second configuration parameter;
  • the first random access resource and the second configuration parameter are associated with a cell definition synchronization signal block SSB.
  • random access can be performed more flexibly.
  • the second BWP is any one of the following:
  • An initial BWP associated with the first BWP an initial BWP associated with the third BWP, an initial BWP, a cell defined bandwidth portion BWP, and a BWP associated with the cell definition SSB, wherein the third BWP is activated for the first BWP when deactivated in BWP.
  • the first random access resource and the second configuration parameter are associated with the first BWP, which is equivalent to configuring the first random access resource and the second configuration parameter while configuring the first BWP, so that the configuration rule can be simplified.
  • the second BWP is the initial BWP associated with the third BWP, the initial BWP, the cell defined bandwidth portion BWP, or the BWP associated with the cell definition SSB, since the BWPs have been configured in advance, or the first random access resource and the first
  • the second configuration parameter has been configured in advance, and only the association between the first BWP and the second BWP is configured when the first BWP is configured, and the information of the first random access resource and the second configuration are not necessarily carried by corresponding signaling.
  • the information of the parameters can save signaling overhead.
  • the information about the first random access resource and/or the information of the second configuration parameter are carried by the radio resource control RRC reconfiguration information; and/or
  • the information of the first random access resource and/or the information of the second configuration parameter are carried by the system broadcast message.
  • the information of the first random access resource and/or the information of the second configuration parameter are carried by the existing signaling, which can communicate with the prior art to a greater extent.
  • the RRC reconfiguration message or the system broadcast message carries a configuration parameter of the second BWP, where the first random access resource and the second configuration parameter are associated with a second BWP, where the The configuration parameters of the second BWP include the second configuration parameter.
  • the method further includes:
  • the terminal device deactivates or releases the second BWP according to the first indication information, and continues to maintain the second configuration parameter of the second BWP.
  • the method further includes:
  • the terminal device stops receiving the BWP activation/deactivation indication information from the first BWP, or stops listening to the downlink control information of the first BWP, or deactivates the first BWP, or releases the first BWP.
  • the method when the terminal device performs a random access process, the method further includes:
  • the terminal device If the terminal device receives the indication information for deactivating the first BWP, the terminal device stops the random access procedure, or the terminal device determines that the current random access procedure fails.
  • the method before the terminal device sends a random access request to the network device on the first random access resource, the method further includes: the terminal device activating the second BWP .
  • the method further includes:
  • the terminal device receives the random access message 4 sent by the network device;
  • the terminal device activates the first BWP.
  • the terminal device deactivates the first BWP in the random access process, the first BWP may be activated after the random access succeeds.
  • the method when the terminal device performs a random access process, the method further includes:
  • the terminal device receives the second indication information sent by the network device, where the second indication information is used to activate the fourth BWP;
  • the terminal device performs a random access procedure according to a fifth BWP associated with the fourth BWP, the fifth BWP being an initial BWP associated with the fourth BWP, an initial BWP, a cell defined bandwidth portion BWP, or associated with a cell definition SSB BWP.
  • the new BWP is activated, that is, the fourth BWP, and the terminal device and the network device may consider that the random access fails.
  • the terminal device can continue to perform random access according to the fifth BWP associated with the fourth BWP, thereby being able to improve the random access success rate.
  • the first BWP is associated with multiple random access resources
  • the terminal device determines the first random access resource, including:
  • the terminal device randomly selects one random access resource from the plurality of random access resources as the first random access resource.
  • the first BWP is associated with multiple initial BWPs
  • the terminal device determines the first random access resource, including:
  • the terminal device determines the first random access resource according to at least one of the following:
  • the terminal device uses the random access resource of the first initial BWP in the plurality of initial BWPs as the first random access resource, where the random access resource of the first initial BWP is randomly associated with the first BWP
  • the access resources are the same, and/or the first BWP is the best initial BWP of the synchronization signal block SSB measurement results in the plurality of initial BWPs, and the measurement result is the reference signal received power RSRP, the reference signal received quality RSRQ, and the signal.
  • the terminal device uses the access resource of any one of the multiple initial BWPs as the first random access resource;
  • the terminal device selects, as the first random access resource, a random access resource of an initial BWP of the plurality of BWPs that has the largest resource intersection with the first BWP.
  • the terminal device can improve the flexibility of the system by selecting the first random access resource and the second configuration parameter by using various rules.
  • a method for random access comprising:
  • the network device performs data transmission according to a configuration parameter of the currently activated first bandwidth part BWP, where the configuration parameter of the first BWP includes at least one of a first resource offset, a first bandwidth, and a first subcarrier interval;
  • the network device determines a first random access resource and a second configuration parameter
  • the network device sends a random access response to the terminal device according to the random access request and the second configuration parameter, where the second configuration parameter includes a second resource offset, at least one of the second bandwidth and the second subcarrier interval One.
  • the method further includes:
  • the network device receives the random access message 3 sent by the terminal device according to the random access response.
  • the first random access resource and the second configuration parameter are associated with the first BWP; or
  • the first random access resource and the second configuration parameter are associated with the second BWP; or
  • the first random access resource is a cell-specific random access resource, and the cell-specific random access resource is associated with the second configuration parameter;
  • the first random access resource and the second configuration parameter are associated with a cell definition synchronization signal block SSB.
  • the second BWP is any one of the following:
  • An initial BWP associated with the first BWP an initial BWP associated with the third BWP, an initial BWP, a cell defined bandwidth portion BWP, and a BWP associated with the cell definition SSB, wherein the third BWP is activated for the first BWP when deactivated in BWP.
  • the method before the determining, by the network device, the first random access resource and the second configuration parameter, the method further includes:
  • the network device sends a radio resource control RRC reconfiguration message and/or a system broadcast message to the terminal device, where the RRC reconfiguration message carries the information of the first random access resource and/or the information of the second configuration parameter, and/ Or the system broadcast message carries information of the first random access resource and/or information of the second configuration parameter.
  • the RRC reconfiguration message or the system broadcast message includes configuration parameters of the second BWP, the first random access resource and the second configuration parameter and the second BWP.
  • the present application provides a terminal device for performing the method in any of the foregoing first aspect or any possible implementation of the first aspect.
  • the present application provides a network device for performing the method in any of the foregoing possible aspects of the second aspect or the second aspect.
  • the present application provides a terminal device, including: a memory, a processor, a transceiver, and a computer program stored on the memory and operable on the processor, wherein the processor
  • the method of any of the above-described first aspects or any of the possible implementations of the first aspect is performed when the computer program is executed.
  • the present application provides a network device, including: a memory, a processor, a transceiver, and a computer program stored on the memory and operable on the processor, wherein the processor
  • the method of any of the above-described second aspect or any of the possible implementations of the second aspect is performed when the computer program is executed.
  • the application provides a computer readable medium for storing a computer program, the computer program comprising instructions for performing the method of the first aspect or any of the possible implementations of the first aspect.
  • the present application provides a computer readable medium for storing a computer program, the computer program comprising instructions for performing the method of any of the second aspect or any of the possible implementations of the second aspect.
  • the present application provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of any of the first aspect or the first aspect of the first aspect.
  • the present application provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of any of the above-described second aspect or any of the possible implementations of the second aspect.
  • the present application provides a chip, including: an input interface, an output interface, at least one processor, and a memory, wherein the input interface, the output interface, the processor, and the memory communicate with each other through an internal connection path.
  • the processor is operative to execute code in the memory, the processor being operative to perform the method of the first aspect or any of the possible implementations of the first aspect, when the code is executed.
  • the present application provides a chip, including: an input interface, an output interface, at least one processor, and a memory, wherein the input interface, the output interface, the processor, and the memory communicate with each other through an internal connection path,
  • the processor is operative to execute code in the memory, the processor being operative to perform the method of any of the possible implementations of the second aspect or the second aspect described above when the code is executed.
  • FIG. 1 is a schematic structural diagram of a communication system provided by an embodiment of the present application.
  • Figure 2 is a schematic diagram of a BWP.
  • FIG. 3 is a schematic flowchart of a contention-based random access method in the prior art.
  • FIG. 4 is a schematic diagram of the specific content of a random access response message.
  • FIG. 5 is a schematic flowchart of a method for random access according to an embodiment of the present application.
  • FIG. 6 is a schematic flowchart of a method for random access according to another embodiment of the present application.
  • FIG. 7 is a schematic block diagram of a terminal device according to an embodiment of the present application.
  • FIG. 8 is a schematic block diagram of a network device according to an embodiment of the present application.
  • FIG. 9 is a schematic block diagram of another terminal device according to an embodiment of the present application.
  • FIG. 10 is a schematic block diagram of another network device according to an embodiment of the present application.
  • FIG. 11 is a schematic block diagram of a communication apparatus according to an embodiment of the present application.
  • FIG. 12 is another schematic block diagram of a communication apparatus according to an embodiment of the present application.
  • FIG. 13 is still another schematic block diagram of a communication apparatus according to an embodiment of the present application.
  • FIG. 14 is still another schematic block diagram of a communication apparatus according to an embodiment of the present application.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • LTE-A Advanced Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • a generation communication system for example, a fifth-generation (5G) communication system
  • 5G system can also be called a new radio access technology (NR) system.
  • FIG. 1 is a schematic diagram of a communication system 100 suitable for use with embodiments of the present application.
  • the communication system 100 can include a network device 102 and terminal devices 104-114.
  • the network device 102 may be any device having a wireless transceiving function or a chip that can be disposed on the device, including but not limited to: a base station (eg, a base station NodeB, an evolved base station eNodeB, a fifth generation ( 5G) Network equipment in the communication system (such as transmission point (TP), transmission reception point (TRP), gNB, base station, small base station equipment, etc.), network equipment in the future communication system, and wireless protection An access node, a wireless relay node, a wireless backhaul node, etc. in a Wireless-Fidelity (WiFi) system.
  • a base station eg, a base station NodeB, an evolved base station eNodeB, a fifth generation ( 5G) Network equipment in the communication system (such as transmission point (TP), transmission reception point (TRP), gNB, base station, small base station equipment, etc.), network equipment in the future communication system, and wireless protection An access node, a wireless relay node, a
  • Network device 102 can communicate with a plurality of terminal devices, such as terminal devices 104-114 shown in the figures.
  • the terminal device may also be referred to as a user equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, and a wireless communication.
  • Device user agent, or user device.
  • the terminal device in the embodiment of the present application may be a mobile phone, a tablet, a computer with a wireless transceiver function, a virtual reality (VR) terminal device, and an augmented reality (AR) terminal.
  • VR virtual reality
  • AR augmented reality
  • the embodiment of the present application does not limit the application scenario.
  • the foregoing terminal device and a chip that can be disposed in the foregoing terminal device are collectively referred to as a terminal device.
  • the communication system 100 can also be a public land mobile network (PLMN) network, a device to device (D2D) network, a machine to machine (M2M) network, or other network.
  • PLMN public land mobile network
  • D2D device to device
  • M2M machine to machine
  • FIG. 1 is a simplified schematic diagram of an example for ease of understanding.
  • Other communication devices and terminal devices may also be included in the communication system 100, which are not shown in FIG.
  • the system may configure a corresponding bandwidth for each terminal device.
  • the bandwidth allocated to the terminal device is called BWP, and the terminal device is in its own BWP. Transfer on.
  • the system can configure different BWPs for different terminal devices.
  • the configuration parameters corresponding to each BWP include: supported subcarrier spacing, bandwidth size, and resource offset.
  • the subcarrier spacing interval can be configured through Numerology. The Numerology includes the configuration of the subcarrier spacing and the configuration of the cyclic prefix length.
  • the size of the bandwidth refers to the number of consecutive PRBs included in the BWP, and the frequency location is the bandwidth or carrier of the BWP in the entire cell. The location in the bandwidth.
  • Figure 2 is a schematic diagram of the resources of a BWP.
  • the reference point is the location of PRB0 (not the PRB0 in the figure) on the absolute resource granularity, and may generally be the lowest position of the entire cell bandwidth or carrier bandwidth.
  • the starting position of BWP1 is the position of PRB0 shown in the figure.
  • the network device may notify the terminal device of the resource offset between the PRB0 and the reference point shown in FIG. 2.
  • the network device may also notify the terminal device of the PRB index (index) of a given Numerology, and the PRB indicated by the PRB index is the end position of the BWP1.
  • the end position of the BWP1 shown in FIG. 2 is PRB15, that is, The BWP1 includes PRB0 to PBR15.
  • the network device can directly notify the bandwidth of the terminal device BWP1.
  • a BWP can be uniquely determined based on Numerology, resource offset, and bandwidth size, or a BWP is associated with configuration parameters Numerology, resource offset, and bandwidth.
  • the bandwidth capability of the terminal device is smaller than the bandwidth of the entire cell or the broadband carrier, but greater than or equal to the bandwidth of a specific BWP configured to the terminal device.
  • the corresponding BWP when the terminal device is initially accessed is referred to as an initial BWP (initial BWP).
  • initial BWP There can typically be multiple initial BWPs on a cell or a wideband carrier.
  • the initial BWP can be understood as a unique BWP for initial access configured by the system.
  • the BWP for data transmission configured by the network device for the terminal device according to need is called an activation BWP.
  • the initial BWP is understood as a BWP used by the UE to perform initial access. Or it can be understood that the UE performs random access on the initial BWP. Or, it can be understood that the UE performs random access according to the random access resource of the initial BWP and the configuration parameter of the initial BWP.
  • the configuration parameter of the initial BWP may not include the information of the random access resource of the initial BWP. Alternatively, it can be understood that the UE performs random access according to the configuration parameter of the initial BWP. At this time, the configuration parameter of the initial BWP may include information of the random access resource of the initial BWP.
  • the random access resource in the embodiment of the present application refers to a resource that the terminal device sends a random access request, that is, a physical random access channel (PRACH) resource.
  • PRACH physical random access channel
  • the initial BWP has SSB, system information (such as BWP bandwidth, Numerology, etc.) and corresponding random access resource information and other necessary information to support the UE to perform initial access.
  • system information such as BWP bandwidth, Numerology, etc.
  • random access resource information such as BWP bandwidth, Numerology, etc.
  • the current method is that the network device dynamically controls the terminal device to convert between BWPs under different configuration parameters by using Downlink Control Information (DCI).
  • DCI Downlink Control Information
  • the DCI of the scheduled downlink transmission may include an identifier (ID) of the BWP, so that the terminal device may be activated to activate the downlink BWP corresponding to the BWP ID and receive the physical downlink shared channel of the DCI scheduling on the downlink BWP (Physical Downlink Shared Channel, PDSCH).
  • ID identifier
  • PDSCH Physical Downlink Shared Channel
  • the BWP ID may be included in the DCI that schedules the uplink transmission, so that the UE may be instructed to activate the uplink BWP corresponding to the BWP ID and transmit the Physical Uplink Shared Channel (PUSCH) of the DCI scheduling on the uplink BWP.
  • PUSCH Physical Uplink Shared Channel
  • the conversion of BWP can also be understood as the activation and deactivation of BWP.
  • the downlink BWP currently activated by the terminal device is BWP1.
  • the BWP conversion of the terminal device means that the terminal device needs to deactivate the downlink BWP1 and activate the downlink BWP2.
  • the dynamic activation/deactivation method allows you to quickly adjust the BWP used by the terminal device.
  • the network can dynamically change other configurations such as the bandwidth of the activated BWP used by the terminal device by activating/deactivating the BWP.
  • the terminal device can obtain uplink synchronization through a random access procedure, and the terminal device can also obtain an uplink grant (UL grant) through a random access procedure, or a time alignment timer of the terminal device (Timing Alignment). Timer, TAT) times out, and the terminal device re-acquires uplink synchronization through random access (RA).
  • UL grant uplink grant
  • TAT time alignment timer of the terminal device
  • the terminal device may initiate a contention-based random access procedure under the following conditions:
  • Case 1 The terminal device needs to send a Scheduling Request (SR), but no SR resources are currently available.
  • SR Scheduling Request
  • Case 3 The TAT of the terminal device times out and the uplink data arrives.
  • the present application is not limited to triggering random access only in the above three cases, and the terminal device may also initiate random access in other cases.
  • the contention-based random access method process includes S310-S340 on a conventional cell or a carrier.
  • the terminal device sends a random access message 1 (RA Msg1), that is, a random access request or a random access preamble (Random Access Preamble) to the network device.
  • RA Msg1 random access message 1
  • RA Msg1 random access message 1
  • Random Access Preamble Random Access Preamble
  • the random access request is sent on a random access resource (Random Access Channel, RACH), and the preamble (Preamble) carried in the random access request implies that the terminal device needs to send a random number.
  • RACH Random Access Channel
  • Preamble The size of access message 3 (RA Msg3).
  • the network device sends a random access response (Random Access Response), that is, RA Msg2, to the terminal device.
  • RA Msg2 Random Access Response
  • the network device After receiving the random access request, the network device sends a random access response on the downlink shared channel.
  • the random access response is generated by a Media Access Control (MAC) layer. See Figure 4 for details of the random access response.
  • the number on the right side of Figure 4 indicates the number of bytes occupied by one line.
  • MAC Media Access Control
  • the Timing Advance Command (TAC) field includes a TA value calculated by the network device that needs to be transmitted in the uplink.
  • the uplink grant (UL Grant) field indicates that the terminal device performs the information of the uplink resource allocated by S330.
  • Temporary C-RNTI indicates a temporary identifier assigned to the UE.
  • the terminal device sends the random access message 3 on the uplink shared channel according to the resource indicated in the random access response.
  • the network device sends a random access message 4 to the terminal device.
  • the random access message 4 is used to solve the conflict problem caused when multiple terminal devices use the same preamble.
  • the terminal device and the network device perform only S310 and S320.
  • S310 and S320 For details, refer to the prior art, and details are not described herein again.
  • the terminal device when random access is triggered, the terminal device performs default random access on the currently triggered cell or carrier.
  • the BWP resource configuration on a cell or a wideband carrier is very dynamic and flexible.
  • different BWPs may correspond to different resource offsets.
  • the terminal device performs random access on the currently activated BWP (eg, referred to as the first BWP), and the first BWP and the one or more initials
  • the configuration parameters of the BWP such as the resource offset, the subcarrier spacing, or the bandwidth
  • the terminal device cannot determine the location where the network device sends the random access response message during the random access procedure. And the resource that the terminal device sends the random access message 3.
  • the resource offset of the first BWP is 5 PRBs
  • the resource offset of the initial BWP is 6 PRBs
  • the subcarrier spacing and bandwidth of the first BWP are the same as the initial BWP
  • the network device is indexed as The random access response message is sent in the PRB of the network, that is, the network device sends a random access response message in the second PRB in the first BWP
  • the terminal device considers that the network device sends the random connection in the second PRB of the initial BWP.
  • the resource offsets of the first BWP and the initial PRB are different, the resources understood by the terminal device and the network device are substantially different resources. In this way, the terminal device will not successfully receive the random access response message, resulting in random access failure. Or, it may cause collisions with other terminal devices in the transmission of these PBRs, causing mutual interference.
  • the terminal device cannot successfully send a random access request, and the subsequent random access process cannot be continued, thereby causing random access failure.
  • the present application provides a method for random access, which can improve the random access success rate and can reduce interference to other terminal devices.
  • FIG. 5 is a schematic flowchart of a method for random access according to an embodiment of the present application, which is shown from the perspective of device interaction.
  • the terminal device performs data transmission according to a configuration parameter of the currently activated first BWP, where the configuration parameter of the first BWP includes at least one of a first resource offset, a first bandwidth, and a first subcarrier interval.
  • the resource offset can be understood as the resource size of the relative offset between the starting position of the BWP (eg, subcarrier or PRB, etc.) and the absolute reference point, that is, the resource offset is related to the position of the BWP. Then, for the first resource offset, it can be understood as the resource size of the relative offset between the starting position of the first BWP and the absolute reference point.
  • the resource offset can be represented by the number of PRBs, but the embodiment of the present application does not limit this.
  • the first bandwidth is the bandwidth of the first BWP.
  • the first subcarrier spacing is a subcarrier spacing of the first BWP, and a starting position and/or an ending position of a PRB in frequency may be determined according to the subcarrier spacing.
  • the network device when the terminal device performs data transmission according to the configuration parameter of the first BWP, the network device also performs data transmission with the terminal device according to the configuration parameter of the first BWP.
  • data transmission includes the transmission and reception of data, for example, when the terminal device transmits data (for example, the first data) to the network device according to the configuration parameter of the first BWP, the network device configures according to the first BWP. The parameter receives the first data.
  • the network device sends data (for example, the second data) to the terminal device according to the configuration parameter of the first BWP
  • the terminal device receives the second data according to the configuration parameter of the first BWP.
  • the terminal device may determine a set of parameters configured by the network device: the resource offset, the bandwidth, and the first subcarrier interval, determine the bandwidth size and resource location supported by the network device, or determine a BWP. . Or it can be understood that the set of parameters corresponds to a BWP.
  • a plurality of BWPs (e.g., first BWPs) configured by a network device for a terminal device may have the same bandwidth and subcarrier spacing, but with different frequency offsets.
  • the parameter of the first BWP and the second configuration parameter may include only the frequency offset.
  • the plurality of BWPs configured by the network device for the terminal device may have the same frequency offset and subcarrier spacing, but the bandwidth is different.
  • the parameter of the first BWP and the second configuration parameter may include only the bandwidth.
  • multiple BWPs configured by the network device for the terminal device may have the same frequency offset and bandwidth, but the subcarrier spacing is different.
  • the terminal device sends a random access request to the network device on the first random access resource.
  • the network device receives the random access request on the first random access resource.
  • the terminal device is triggered to perform a random access procedure, for example, in any of the trigger situations (1) to (3) described above.
  • the terminal device is triggered to perform a random access procedure, and the terminal device may start performing a random access procedure, that is, sending a random access request to the network device on the first random access resource.
  • the method may further include:
  • the terminal device determines a first random access resource that performs random access. Accordingly, the network device determines a first random access resource that performs random access.
  • the terminal device first determines the first random access resource, and then starts performing the random access procedure.
  • the network device sends a random access response to the terminal device according to the second configuration parameter and the first random access request.
  • the terminal device receives the random access response according to the second configuration parameter.
  • the second configuration parameter includes at least one of a second resource offset, a second bandwidth, and a second subcarrier interval.
  • the second resource offset is used by the terminal device to determine the location of the resource (eg, PRB).
  • the second bandwidth is used by the terminal device to determine the size of the bandwidth (denoted as: band #1) usable in S506 and the following step S508.
  • the second subcarrier spacing is the subcarrier spacing of band #1.
  • the terminal device acquires first scheduling information according to the second configuration parameter, where the first scheduling information is used to indicate the first resource, and the terminal device receives the random access response on the first resource.
  • the terminal device may first determine, according to the second configuration parameter and the first scheduling information, the first resource that sends the random access response message.
  • the first scheduling information may be an index of the PRB
  • the terminal device may determine, according to the index of the PRB and the second configuration parameter, the location of the PRB indicated by the index of the PRB in the band #1. The terminal device then detects or receives the random access response on the first resource.
  • the first random access resource and the second configuration parameter are corresponding, that is, if the terminal device sends the random access request by using the first random access resource, the second configuration parameter is used to receive the random access response and send the random access message.
  • the method may further include:
  • the terminal device determines a second configuration parameter that performs random access. Accordingly, the network device also determines a second configuration parameter to perform random access.
  • the terminal device first determines the second configuration parameter, and then receives the random access response according to the second configuration parameter.
  • S505 may be performed before S504, or may be performed after S54, which is not limited by the embodiment of the present application. It should be understood that S505 may be executed simultaneously with S503, or S505 may be executed before S503, or S505 may be executed after S503, which is not limited in this embodiment of the present application.
  • the terminal device may cause random access failure when performing data transmission on the currently activated BWP (ie, the first BWP). For example, the network device schedules, according to the first configuration parameter, the terminal device to receive the resource of the random access response, if the configuration parameter of the first BWP (ie, the first configuration parameter) and the BWP of the terminal device before performing the random access (ie, the initial BWP)
  • the configuration parameters are different. For example, when the resource offsets are different, the terminal device cannot determine the location where the network device sends the random access response message. In this way, the terminal device will not successfully receive the random access response message, resulting in random access failure. For example, if there is no random access resource in the first BWP, the terminal device cannot successfully send a random access request, and the subsequent random access process cannot be continued, thereby causing random access failure. Or, it may cause interference with other terminal devices.
  • the terminal device when the terminal device performs data transmission on the currently activated BWP, if the random access procedure is triggered, the random access is performed according to the first random access resource and the second configuration parameter, instead of Random access is performed on the currently activated BWP.
  • the network device When determining that the terminal device is triggered to perform random access, the network device performs a corresponding random access procedure on the first random access resource and the second configuration parameter.
  • the network device and the terminal device understand the same resource, because the terminal device can send the random access request on the first random access resource, and in the subsequent random access process, for example, the terminal device receives the random access response message. Therefore, the success rate of random access can be improved, and interference with other terminal devices can be reduced.
  • the method may further include:
  • the terminal device sends a random access message 3 to the network device according to the random access response.
  • the terminal device parses the second scheduling information carried by the random access response message according to the second configuration parameter, where the second scheduling information is used to indicate the second resource, and the terminal device is on the second resource.
  • the random access message 3 is sent to the network device.
  • the random access response message carries the second scheduling resource
  • the terminal device may determine the second resource according to the second scheduling resource and the second configuration parameter.
  • the second scheduling information may be an index of the PRB
  • the terminal device may locate the PRB in the band #1 indicated by the index of the PRB according to the index of the PRB and the second configuration parameter, and then the terminal device is in the one or more PRBs. Send an access response message at any time.
  • the application may be applied to non-contention random access in the contention-based random access, but the application is not limited to the two scenarios, and the application may be applied to other applications.
  • Random access in the scene Specifically, when performing non-contention random access, the scheduling information of the random access response may also be received and parsed using the first configuration parameter.
  • the second configuration parameter is at least partially different from the first configuration parameter, and/or the resource of the first BWP does not include a random access resource, and the random access resource is used to send a random access request.
  • the second configuration parameter is at least partially different from the first configuration parameter, that is, the second configuration parameter may be different or partially different from the first configuration parameter.
  • the second resource offset may be different from the first resource offset, that is, the starting position of the first BWP is different from the starting position of the band #1.
  • the second bandwidth is different from the first bandwidth, that is, the bandwidth of the first BWP is different from the bandwidth of the band #1.
  • the second subcarrier spacing is different from the first subcarrier spacing, that is, the subcarrier spacing of the first BWP is different from the subcarrier spacing of the band#1.
  • the resource of the first BWP does not include the random access resource, that is, there is no resource in the first BWP that can be used to send the random access request. In this case, the resources of the first BWP do not include the first random access resource.
  • the first random access resource and the second configuration parameter are associated with the first BWP.
  • the BWP1 can be configured to the terminal device at the same time.
  • the network device informs the terminal device of the configuration parameters of the BWP1, that is, the resource offset, the bandwidth (ie, the size of the bandwidth), and at least one of the carrier intervals, or may also notify the terminal device of the random access in the BWP1.
  • the resource, or the random access resource in the BWP1, may be predefined.
  • the terminal device performs data transmission on the first BWP, that is, performs data transmission according to the first configuration parameter
  • the terminal device performs random access on the BWP1, that is, the terminal device is on the BWP1.
  • the random access resource ie, the first random access resource
  • a subsequent step of performing random access such as receiving a random access response, or sending a random access message 3 further.
  • the first random access resource and the second configuration parameter are associated with the second BWP; or
  • the first random access resource is a cell-specific random access resource, and the cell-specific random access resource is associated with the second configuration parameter;
  • the first random access resource and the second configuration parameter are associated with a cell definition SSB.
  • the first random access resource and the second configuration parameter are associated with the second BWP.
  • the first random access resource and the second configuration parameter have a mapping relationship with the second BWP, or the terminal device can be configured according to the first
  • the second BWP determines the first random access resource and the second configuration parameter.
  • the first random access resource and the second configuration parameter are associated with the cell definition SSB.
  • the terminal device may determine, according to the cell definition SSB, the first random access resource and the second configuration parameter, or the first random access.
  • the resource and the second configuration parameter have a mapping relationship with the cell definition SSB.
  • the first random access resource is a cell-specific random access resource
  • the terminal device in the cell uses the first random access resource to send a random access request when performing random access.
  • the cell-specific random access resource is associated with the second configuration parameter.
  • the second configuration parameter may be determined according to the cell-specific random access resource, or the cell-specific random access resource may be determined according to the second configuration and the parameter.
  • the cell-specific random access resource has a mapping relationship with the second configuration parameter.
  • the cell defining SSB indicates that the terminal device determines the downlink timing of the current cell or the current carrier by using the SSB of the characteristic, and determines the signal quality of the cell or the carrier according to the measurement result of the SSB.
  • the second BWP may be any one of the following:
  • the initial BWP associated with the first BWP is noted as: initial BWP2. That is to say, the cell may have multiple initial BWPs, and different BWPs for data transmission may correspond to different initial BWPs, that is, the initial BWP2 is a specific BWP of the plurality of initial BWPs.
  • the terminal device can determine the initial BWP2 according to the currently activated BWP, that is, the first BWP. Therefore, when the terminal device performs data transmission on the first BWP, if the random access is triggered, the random access can be performed on the initial BWP2.
  • the initial BWP associated with the third BWP is denoted as: initial BWP3.
  • the BWP3, that is, the terminal device performs data transmission on the third BWP it is triggered to execute the BWP used by the random access.
  • the third BWP is a BWP that is deactivated when the first BWP is activated.
  • the BWP used when performing the random access is the initial BWP3.
  • the terminal device performs random access on the BWP 3.
  • a cell definition BWP can be understood as a BWP including cell-specific random access resources.
  • the terminal equipment in the cell can use the cell definition BWP when performing random access.
  • the BWP associated with the cell definition SSB refers to the BWP where the cell definition SSB is located.
  • the terminal equipment in the cell can use the BWP associated with the cell definition SSB when performing random access.
  • the BWP associated with the cell-defined SSB may be defined as a cell-defined BWP, but the embodiment of the present application does not limit this.
  • the terminal device can perform random access using any one of the one or more BWPs in the cell.
  • the terminal device may specifically select one random access resource from the multiple random access resources in S503.
  • the first random access resource is any one of the plurality of random access resources.
  • the terminal device may perform random access on multiple initial BWPs, then in S503, the terminal device may specifically perform at least one of the following rules.
  • the initial BWP is a BWP that the terminal device can perform random access.
  • the association of the first BWP with the plurality of initial BWPs may be understood as the plurality of initial BWPs may be determined by the first BWP, and the terminal device may perform random access on any of the plurality of initial BWPs.
  • the BWP for random access includes a random access resource.
  • Rule 1 The terminal device uses the random access resource of the first initial BWP in the plurality of initial BWPs as the first random access resource.
  • the random access resource of the first initial BWP is the same as the random access resource associated with the first BWP, and/or the first BWP is the best measurement result of the synchronization signal block SSB in the multiple initial BWPs.
  • the initial BWP, the measurement result is at least one of a reference signal received power RSRP, a reference signal received quality RSRQ, and a signal to noise and interference ratio SINR.
  • the first BWP is associated with a random access resource
  • the random access resources of the initial BWP (ie, the first BWP) of the multiple initial BWPs are the same as the random access resources associated with the first BWP
  • the terminal The device uses the random access resource of the initial BWP as the first random access resource.
  • the terminal device may perform measurement on the SSBs sent on the multiple BWPs to obtain multiple or multiple sets of measurement results, such as RSRP, reception quality RSRQ, and/or SINR. It is easy to understand that each initial BWP corresponds to one or a set of measurements.
  • the terminal device selects the initial BWP corresponding to the best one or a group of the obtained one or more sets of measurement results, that is, the maximum RSRP, the reception quality RSRQ, and/or the initial BWP corresponding to the SINR.
  • the access resource is used as the first random access resource. If an initial BWP only satisfies one of the foregoing conditions, the terminal device may use the random access resource of any BWP that satisfies the above conditions as the first random access resource.
  • the terminal device uses the configuration parameter of the initial BWP as the second configuration parameter. Or, the terminal device performs random access on the initial BWP.
  • Rule 2 The terminal device uses the time-access resource of any one of the multiple initial BWPs as the first random access resource.
  • the terminal device randomly selects a random access resource of any one of the multiple BWPs as the first random access resource.
  • Rule 3 The terminal device selects a random access resource of the initial BWP of the plurality of BWPs that has the largest resource intersection with the first BWP as the first random access resource.
  • the terminal device selects the random access resource of the initial BWP in which the frequency band overlaps the frequency band of the plurality of BWPs with the first BWP as the first random access resource.
  • the method may further include:
  • the network device sends an RRC reconfiguration message and/or a system broadcast message to the terminal device, where the RRC reconfiguration message carries the information of the first random access resource and/or the information of the second configuration parameter, and/or the system broadcast message carries the first random Information of access resources and/or information of second configuration parameters.
  • the RRC reconfiguration message may carry the information of the first random access resource and the information of the second configuration parameter; or the RRC reconfiguration message may carry the information of the first random access resource, and the system broadcast message may carry the second configuration parameter.
  • the RRC reconfiguration message may carry the information of the second configuration parameter, and the system broadcast message may carry the information of the first random access resource; or the system broadcast message may carry the information of the first random access resource and the second configuration parameter.
  • the information in this application is not limited in this embodiment.
  • the terminal device may specifically determine the first random access resource and the second configuration parameter according to the RRC reconfiguration message and/or the system broadcast message.
  • the terminal device can learn the first random access resource and the second configuration parameter according to the RRC reconfiguration message and/or the system broadcast message before performing the random access, and the terminal device can be based on the first random access.
  • the resource and the second configuration parameter perform a random access procedure.
  • the RRC reconfiguration message or the system broadcast message includes a configuration parameter of the second BWP, and the configuration parameter of the second BWP includes the second configuration parameter.
  • the network device configures the second BWP to the network device by using the RRC reconfiguration message or the system broadcast message.
  • the method may further include:
  • the network device sends the first indication information to the terminal device.
  • the first indication information is used to deactivate or release the second BWP;
  • the terminal device deactivates or releases the second BWP according to the first indication information, and continues to maintain configuration parameters of the second BWP.
  • S510 and S512 may be performed before S502 or S504, or may be performed after S506 or S508, which is not limited by the embodiment of the present application.
  • the maintenance of the configuration parameters of the second BWP by the terminal device means that the terminal device continues to maintain or save the configuration parameters of the second BWP without deleting or discarding it.
  • the terminal device may ignore or not Ignoring the first deactivation command, but continuing to perform random access on the second BWP, or the terminal device is triggered to perform random access when performing data transmission on the first BWP again, the terminal device is still in the Random access is performed on the second BWP.
  • the method may further include: the terminal device activating the second BWP.
  • the terminal device first activates the second BWP and then performs random access on the second BWP.
  • the terminal device performs random access on the second BWP, it can also be understood that the terminal device has activated the second BWP, and then performs random access on the second BWP.
  • the method further includes:
  • the terminal device performs at least one of the following operations:
  • the terminal device stops receiving the indication information that the BWP is activated to deactivate the BWP from the first BWP;
  • the terminal device no longer monitors downlink control information of the first BWP
  • the terminal device deactivates the first BWP
  • the terminal device releases the first BWP.
  • the terminal device performs the process of S504, S506 or S508, or between S504 and S506, or between S506 and S508, or after performing S508 but the terminal device has not successfully accessed the random access, the terminal device The device can stop performing the above operations. That is to say, if the terminal device receives the indication information for activating or deactivating a certain BWP on the first BWP, the terminal device may not activate or deactivate the BWP according to the indication information. And/or, the terminal device may no longer continue to listen to the downlink control information on the first BWP. And/or, the terminal device deactivates or releases the first BWP.
  • the method may further include: after the random access succeeds, the terminal device activates the first BWP.
  • the terminal device may activate the first BWP after receiving the random access message 4.
  • the terminal device may activate the first BWP after receiving the random access response.
  • the method may further include:
  • the terminal device If the terminal device receives the indication information for deactivating the first BWP, the terminal device stops the random access procedure, or the terminal device determines that the current random access procedure fails.
  • the network device needs to deactivate the first BWP, send, to the terminal device, indication information for deactivating the first BWP to deactivate the first BWP.
  • the terminal device stops the current random access procedure, that is, the subsequent random access procedure is not performed, or the terminal device considers that the current random access fails.
  • the method may further include:
  • the terminal device performs a random access procedure according to a fifth BWP associated with the fourth BWP, the fifth BWP being an initial BWP associated with the fourth BWP, an initial BWP, a cell defined bandwidth portion BWP, or a BWP associated with the cell definition SSB .
  • the terminal device performs random access with reference to the scenario in which the first BWP is activated, that is, the currently activated BWP is the first BWP.
  • the fourth BWP herein may be understood as the first BWP described above
  • the fifth BWP may be understood as the second BWP described above
  • the description about the fifth BWP may specifically describe the description of the second BWP, I won't go into details here.
  • the new BWP is activated, that is, the fourth BWP, and the terminal device and the network device may consider that the random access fails. At this time, the terminal device may continue to perform random access according to the fifth BWP associated with the fourth BWP. If the currently activated BWP includes more than the fourth BWP, that is, may include multiple BWPs, the terminal device selects one BWP from the newly activated multiple BWPs including the random access resources for random access. For the specific selection method, reference may be made to the rules 1 to 3 described above, and details are not described herein again.
  • the terminal device is the UE and the network device is the gNB.
  • Figure 6 shows a specific embodiment of a method for random access.
  • the UE performs an RRC connection with the gNB.
  • the UE initiates an RRC connection setup procedure from an idle mode or an idle state, and establishes an RRC connection with the gNB. Specifically, when accessing a broadband cell or a broadband carrier of the gNB, the UE may be accessed from one of the initial BWPs.
  • the UE may enter the connected state to recognize the initial BWP, and the UE treats it as a normal cell before entering the connected state.
  • the gNB sends a connection reconfiguration message to the UE.
  • the gNB determines to configure and/or activate one or more new BWPs for the UE according to information about the current service status of the UE and the current resource status of the broadband cell. Then, the gNB sends an RRC Connection Reconfiguration message to the UE to configure one or more new BWPs for the UE.
  • the gNB may send indication information of one or more BWPs to the UE to activate the one or more BWPs for the UE.
  • the gNB can also carry any of the following through the RRC connection reconfiguration message:
  • the configuration information of the BWP associated with the cell definition SSB may include: a resource offset of the BWP associated with the cell definition SSB, a Numerology, and a bandwidth (or a size of the bandwidth).
  • the gNB configures information of the initial BWP associated with the activated BWP or the BWP to be activated for the UE.
  • This information can include resource offsets, Numerology, and bandwidth.
  • the newly activated BWP of the UE is BWP3, and the initial BWP associated with BWP3 is the initial BWP1.
  • the gNB configures or activates BWP3 for the UE, the gNB also specifies the initial BWP 11 associated with the BWP 3 for the UE.
  • the bandwidth range of the initial BWP1 may be a subset of the bandwidth range of the BWP3. In practice, the two may overlap or may not overlap. This application does not impose any limitation.
  • the activated BWP itself may have no random access resources, and its associated initial BWP1 does not overlap with it.
  • the configuration information includes random access resources, resource offsets, Numerology, and bandwidth related to the random access procedure.
  • the gNB network configures and activates a new BWP for the UE, the initial BWP is deactivated in the reconfiguration message, and the UE continues to maintain the resource offset, Numerology, and bandwidth corresponding to the initial BWP.
  • the UE After the UE establishes a connection with the gNB, it first works in the BWP4, and then when the network configures the BWP3 for the UE, the network can deactivate the BWP4, but at this time, the UE needs to continue to retain the resource offset, the nullerology, and the bandwidth corresponding to the initial BWP1. Used for subsequent random access.
  • the configured new BWP has two independent sets of parameters, and one set is a parameter related to performing a random access procedure, that is, a random access resource and a resource offset that need to be applied in the random access process when the UE performs random access. Volume, Numerology and Bandwidth. Another set of parameters is that the UE performs parameters related to normal service data transmission, that is, parameters such as resource offset, Numerology, and bandwidth applied when the UE performs service data transmission.
  • the above-mentioned A to D may be transmitted in the broadcast message of the gNB in addition to the above-mentioned A to E in the RRC reconfiguration message, which is not limited in this embodiment of the present application.
  • the UE After receiving the RRC connection reconfiguration message, the UE configures a new BWP and sends an RRC connection reconfiguration complete message to the gNB.
  • the UE determines whether to activate the newly configured BWP according to the indication of the RRC.
  • the newly configured BWP may be activated by a dedicated BWP activation deactivation message.
  • the UE uses the activated BWP for data transmission.
  • the UE determines a random access resource or a BWP used to perform a random access procedure.
  • the UE may specifically perform one of the following operations.
  • Operation A1 The UE determines to initiate random access on the random access resource associated with the cell definition SSB, and sends a random access request to the gNB.
  • the UE performs random access from the random access resource associated with the cell-defined SSB. .
  • the UE when the UE is triggered to perform random access, the UE actively activates the cell definition BWP, and initiates random access on the cell definition BWP.
  • Operation B1 The UE initiates random access at the initial BWP associated with the activated BWP.
  • Operation C1 The UE initiates random access according to configuration information associated with the random access procedure.
  • Operation D1 The UE performs random access on the initial access resource of the initial BWP according to the saved configuration information of the initial BWP.
  • Operation E1 The UE initiates random access according to the configured BWP and configuration parameters related to performing random access.
  • the UE receives the random access response according to the resource offset, the Numerology, and the bandwidth corresponding to any one of the foregoing A to D.
  • the UE specifically performs one of the following operations in S607.
  • Operation A2 When receiving the random access response, the UE determines the reception of the random access response according to the configuration information of the BWP associated with the cell definition SSB. or,
  • the receiving of the random access response is determined according to the configuration information of the cell definition BWP. That is, the information of the PRB for transmitting the random access response, the Numerology information, and the like are determined.
  • the scheduling information of the random access message 3 is determined according to the configuration information of the BWP associated with the cell definition SSB or the configuration information of the cell definition BWP, and the PRB used by the random access message 3 is transmitted.
  • Operation B2 The UE determines the reception of the random access response according to the resource offset, the Numerology, and the bandwidth of the initial BWP associated with the activated BWP. And further, after receiving the random access response, determining scheduling information of the random access message 3 according to the resource offset, the Numerology, and the bandwidth of the initial BWP associated with the activated BWP.
  • Operation C2 The UE determines the reception of the random access response according to the configured resource offset related to the random access, the Numerology, and the bandwidth. And further, after receiving the random access response, determining scheduling information of the random access message 3 according to the resource offset, the nullerology, and the bandwidth related to the random access.
  • Operation D2 The UE determines the reception of the random access response according to the saved resource offset of the initial BWP, the Numerology, and the bandwidth. And further, after receiving the random access response, determining scheduling information of the random access message 3 according to the saved resource offset of the initial BWP, the Numerology, and the bandwidth.
  • Operation E2 The UE determines the reception of the random access response according to the configured configuration parameters related to performing the random access related to the activated BWP. And further, after receiving the random access response, determining scheduling information of the random access message 3 according to the configuration parameter information related to the performing random access related to the activated BWP.
  • the UE After receiving the random access response, the UE sends the random access message 3 according to the scheduling information of the corresponding random access message 3 determined by the operations A2 to E2.
  • the UE After transmitting the random access message 3, the UE receives the contention resolution message sent by the gNB, and determines whether the random access procedure of the UE is successful.
  • the terminal device determines that the terminal device is triggered to perform random access
  • the terminal device and the network device perform a random access procedure based on the agreed information or parameters, so that the network device and The resources understood by the terminal device are the same, so that the success rate of random access can be improved.
  • the method for the random access provided by the embodiment of the present application is described in detail with reference to FIG. 1 to FIG. 6 .
  • the terminal device and the network device provided by the embodiment of the present application are described below with reference to FIG. 7 to FIG.
  • FIG. 7 is a schematic block diagram of a terminal device 700 provided by an embodiment of the present application.
  • the terminal device 700 includes:
  • the transceiver unit 710 is configured to perform data transmission according to a configuration parameter of the currently activated first bandwidth part BWP, where the configuration parameter of the first BWP includes a first resource offset, at least one of a first bandwidth and a first subcarrier interval.
  • the configuration parameter of the first BWP includes a first resource offset, at least one of a first bandwidth and a first subcarrier interval.
  • the processing unit 720 is configured to determine a first random access resource and a second configuration parameter that perform random access, where the second configuration parameter includes a second resource offset, at least one of the second bandwidth and the second subcarrier interval One item;
  • the transceiver unit 710 is further configured to send the random access request to the network device on the first random access resource;
  • the transceiver unit 720 is further configured to receive a random access response according to the second configuration parameter, where the random access response is sent by the network device according to the random access request.
  • the transceiver unit is further configured to send a random access message 3 to the network device according to the random access response.
  • processing unit is specifically configured to:
  • the transceiver unit is configured to receive, on the first resource, a random access response sent by the network device.
  • processing unit is specifically configured to:
  • the transceiver unit is specifically configured to send the random access message 3 to the network device on the second resource.
  • the first random access resource and the second configuration parameter are associated with the first BWP; or
  • the first random access resource and the second configuration parameter are associated with a second BWP;
  • the first random access resource is a cell-specific random access resource, and the cell-specific random access resource is associated with the second configuration parameter;
  • the first random access resource and the second configuration parameter are associated with a cell definition synchronization signal block SSB.
  • the second BWP is any one of the following:
  • the information of the first random access resource and/or the information of the second configuration parameter are carried by radio resource control RRC reconfiguration information; and/or
  • the information of the first random access resource and/or the information of the second configuration parameter are carried by a system broadcast message.
  • the RRC reconfiguration message or the system broadcast message includes a configuration parameter of the second BWP, and the configuration parameter of the second BWP includes the second configuration parameter.
  • the receiving unit is further configured to:
  • the process deactivates or releases the second BWP according to the first indication information, and continues to maintain the second configuration parameter of the second BWP.
  • processing unit is further configured to:
  • the processing unit stops the random access procedure, or the terminal device determines that the current random access procedure fails.
  • the terminal device 700 herein is embodied in the form of a functional unit.
  • the term "unit” as used herein may refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor (eg, a shared processor, a proprietary processor, or a group) for executing one or more software or firmware programs. Processors, etc.) and memory, merge logic, and/or other suitable components that support the described functionality.
  • ASIC application specific integrated circuit
  • processor eg, a shared processor, a proprietary processor, or a group
  • memory merge logic, and/or other suitable components that support the described functionality.
  • the terminal device 700 may be specifically the terminal device in the foregoing method embodiments, and the terminal device 700 may be used to perform various processes corresponding to the terminal device in the foregoing method embodiments. And/or steps, to avoid repetition, will not be repeated here.
  • FIG. 8 is a schematic block diagram of a network device 800 provided by an embodiment of the present application.
  • the network device 800 includes:
  • the transceiver unit 810 is configured to perform data transmission according to a configuration parameter of the currently activated first bandwidth part BWP, where the configuration parameter of the first BWP includes a first resource offset, at least one of a first bandwidth and a first subcarrier interval.
  • the configuration parameter of the first BWP includes a first resource offset, at least one of a first bandwidth and a first subcarrier interval.
  • the processing unit 820 is configured to determine a first random access resource and a second configuration parameter
  • the transceiver unit 810 is further configured to: receive, on the first random access resource, a random access request sent by the terminal device;
  • the transceiver unit 810 is further configured to send a random access response to the terminal device according to the random access request and the second configuration parameter, where the second configuration parameter includes a second resource offset, and the second bandwidth And at least one of the second subcarrier spacing.
  • the transceiver unit is further configured to:
  • the first random access resource and the second configuration parameter are associated with the first BWP; or
  • the first random access resource and the second configuration parameter are associated with a second BWP;
  • the first random access resource is a cell-specific random access resource, and the cell-specific random access resource is associated with the second configuration parameter;
  • the first random access resource and the second configuration parameter are associated with a cell definition synchronization signal block SSB.
  • the second BWP is any one of the following:
  • the transceiver unit is further configured to:
  • a transmit radio resource control RRC reconfiguration message and/or a system broadcast message where the RRC reconfiguration message carries information of the first random access resource and/or information of the second configuration parameter, And/or the system broadcast message carries information of the first random access resource and/or information of the second configuration parameter.
  • the RRC reconfiguration message or the system broadcast message includes a configuration parameter of the second BWP, and the configuration parameter of the second BWP includes the second configuration parameter.
  • the network device 800 herein is embodied in the form of a functional unit.
  • the term "unit" as used herein may refer to an ASIC, an electronic circuit, a processor (eg, a shared processor, a proprietary processor or a group processor, etc.) and memory, a merge logic, and a processor for executing one or more software or firmware programs. / or other suitable components that support the described functionality.
  • the network device 800 may be specifically the network device in the foregoing method embodiments, and the network device 800 may be used to perform various processes corresponding to the network device in the foregoing method embodiments. And/or steps, to avoid repetition, will not be repeated here.
  • FIG. 9 shows a terminal device 900 provided by an embodiment of the present application.
  • the terminal device can include a processor 910, a transceiver 920, and a memory 930, the processor 910, the transceiver 920, and the memory 930 communicating with each other through an internal connection path.
  • the related functions implemented by the processing unit 720 in FIG. 7 may be implemented by the processor 910, and the related functions implemented by the transceiver unit 710 may be implemented by the processor 910 controlling the transceiver 920.
  • the processor 910 may include one or more processors, for example, including one or more central processing units (CPUs).
  • processors for example, including one or more central processing units (CPUs).
  • CPUs central processing units
  • the CPU may be a single core CPU, and It can be a multi-core CPU.
  • the transceiver 920 is configured to transmit and receive data and/or signals, as well as to receive data and/or signals.
  • the transceiver can include a transmitter and a receiver for transmitting data and/or signals, and a receiver for receiving data and/or signals.
  • the memory 930 includes, but is not limited to, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read only memory (EPROM), and a read only memory.
  • RAM random access memory
  • ROM read-only memory
  • EPROM erasable programmable read only memory
  • CD-ROM compact disc read-only memory
  • the memory 930 is used to store program code and data of the terminal device, and may be a separate device or integrated in the processor 910.
  • the processor 910 is configured to control a transceiver to perform information transmission with a network device.
  • a transceiver to perform information transmission with a network device.
  • Figure 9 only shows a simplified design of the terminal device.
  • the terminal device may also include other necessary components, including but not limited to any number of transceivers, processors, controllers, memories, etc., and all terminal devices that can implement the present application are protected by the present application. Within the scope.
  • the terminal device 900 can be replaced with a chip device, for example, a communication chip that can be used in the terminal device for implementing related functions of the processor 910 in the terminal device.
  • the chip device can be a field programmable gate array for implementing related functions, a dedicated integrated chip, a system chip, a central processing unit, a network processor, a digital signal processing circuit, a microcontroller, or a programmable controller or other integrated chip.
  • the chip may include one or more memories for storing program code that, when executed, causes the processor to perform the corresponding functions.
  • FIG. 10 shows a network device 1000 provided by an embodiment of the present application.
  • the network device can include a processor 1010, a transceiver 1020, and a memory 1030 that communicate with one another via internal connection paths.
  • the related functions implemented by the processing unit 820 of FIG. 8 may be implemented by the processor 1010, and the related functions implemented by the transceiver unit 810 may be implemented by the processor 1010 controlling the transceiver 1020.
  • the processor 1010 may include one or more processors, for example, including one or more CPUs.
  • the processor may be a single core CPU or a multi-core CPU.
  • the transceiver 1020 is configured to transmit and receive data and/or signals, as well as to receive data and/or signals.
  • the transceiver can include a transmitter and a receiver for transmitting data and/or signals, and a receiver for receiving data and/or signals.
  • the memory 1030 includes, but is not limited to, a RAM, a ROM, an EPROM, a CD-ROM, and the memory 1030 is used to store related instructions and data.
  • the memory 1030 is used to store program code and data of the network device, and may be a separate device or integrated in the processor 1010.
  • the processor 1010 is configured to control transmission of information between the transceiver and the terminal device.
  • the processor 1010 is configured to control transmission of information between the transceiver and the terminal device.
  • Figure 10 only shows a simplified design of the network device.
  • the network device may also include other necessary components, including but not limited to any number of transceivers, processors, controllers, memories, etc., and all network devices that can implement the present application are protected by the present application. Within the scope.
  • network device 1000 can be replaced with a chip device, such as a communication chip that can be used in a network device for implementing related functions of processor 1010 in a network device.
  • the chip device can be a field programmable gate array for implementing related functions, a dedicated integrated chip, a system chip, a central processing unit, a network processor, a digital signal processing circuit, a microcontroller, or a programmable controller or other integrated chip.
  • the chip may include one or more memories for storing program code that, when executed, causes the processor to perform the corresponding functions.
  • the embodiment of the present application further provides a communication device, which may be a terminal device or a circuit.
  • the communication device can be used to perform the actions performed by the terminal device in the above method embodiments.
  • FIG. 11 shows a schematic structural diagram of a simplified terminal device.
  • the terminal device uses a mobile phone as an example.
  • the terminal device includes a processor, a memory, a radio frequency circuit, an antenna, and an input/output device.
  • the processor is mainly used for processing communication protocols and communication data, and controlling terminal devices, executing software programs, processing data of software programs, and the like.
  • Memory is primarily used to store software programs and data.
  • the RF circuit is mainly used for the conversion of the baseband signal and the RF signal and the processing of the RF signal.
  • the antenna is mainly used to transmit and receive RF signals in the form of electromagnetic waves.
  • Input and output devices such as touch screens, display screens, keyboards, etc., are primarily used to receive user input data and output data to the user. It should be noted that some types of terminal devices may not have input and output devices.
  • the processor When the data needs to be sent, the processor performs baseband processing on the data to be sent, and outputs the baseband signal to the radio frequency circuit.
  • the radio frequency circuit performs radio frequency processing on the baseband signal, and then sends the radio frequency signal to the outside through the antenna in the form of electromagnetic waves.
  • the RF circuit receives the RF signal through the antenna, converts the RF signal into a baseband signal, and outputs the baseband signal to the processor, which converts the baseband signal into data and processes the data.
  • the memory may also be referred to as a storage medium or a storage device or the like.
  • the memory may be independent of the processor, or may be integrated with the processor, which is not limited in this embodiment of the present application.
  • the antenna and the radio frequency circuit having the transceiving function can be regarded as the transceiving unit of the terminal device, and the processor having the processing function is regarded as the processing unit of the terminal device.
  • the terminal device includes a transceiver unit 1110 and a processing unit 1120.
  • the transceiver unit can also be referred to as a transceiver, a transceiver, a transceiver, and the like.
  • the processing unit may also be referred to as a processor, a processing board, a processing module, a processing device, and the like.
  • the device for implementing the receiving function in the transceiver unit 1110 can be regarded as a receiving unit, and the device for implementing the sending function in the transceiver unit 1110 is regarded as a sending unit, that is, the transceiver unit 1110 includes a receiving unit and a sending unit.
  • the transceiver unit may also be referred to as a transceiver, a transceiver, or a transceiver circuit.
  • the receiving unit may also be referred to as a receiver, a receiver, or a receiving circuit or the like.
  • the transmitting unit may also be referred to as a transmitter, a transmitter, or a transmitting circuit, and the like.
  • transceiver unit 1110 is configured to perform the sending operation and the receiving operation on the terminal device side in the foregoing method embodiment
  • processing unit 1120 is configured to perform other operations on the terminal device except the transmitting and receiving operations in the foregoing method embodiment.
  • the transceiver unit 1110 is configured to perform a transmitting or receiving operation on the terminal device side in S502 in FIG. 5, a transmitting operation on the terminal device side in S504, a receiving operation on the terminal device side in S506, and/or The transmitting operation on the terminal device side in S508, and/or the transceiver unit 1110 is also used to perform other transmitting and receiving steps on the terminal device side in the embodiment of the present application.
  • the processing unit 1120 is configured to perform S503 and S504 in FIG. 5, and/or the processing unit 1120 is further configured to perform other processing steps on the terminal device side in the embodiment of the present application.
  • the transceiver unit 1110 is configured to perform a receiving operation on the terminal device side in S601, S602, S605, S607, and S609 in FIG. 6, and on the terminal device side in S601, S603, S605, and S608.
  • the transmitting operation, and/or the transceiver unit 1120 is also used to perform other transmitting and receiving steps on the terminal device side in the embodiment of the present application.
  • the processing unit 1120 is configured to perform S604 and S606 in FIG. 6, and/or the processing unit 1120 is further configured to perform other processing steps on the terminal device side in the embodiment of the present application.
  • the chip When the communication device is a chip, the chip includes a transceiver unit and a processing unit.
  • the transceiver unit may be an input/output circuit and a communication interface;
  • the processing unit is a processor or a microprocessor or an integrated circuit integrated on the chip.
  • the device shown in FIG. 12 can be referred to.
  • the device can perform functions similar to processor 910 in FIG.
  • the device includes a processor 1210, a transmit data processor 1220, and a receive data processor 1230.
  • the processing unit 720 in the above embodiment may be the processor 1210 in FIG. 12 and perform the corresponding functions.
  • the transceiver unit 710 in the above embodiment may be the transmission data processor 1220 in FIG. 12, and/or the reception data processor 1230.
  • a channel coder and a channel decoder are shown in FIG. 12, it is to be understood that these modules are not intended to be limiting, and are merely illustrative.
  • the processing device 1300 includes modules such as a modulation subsystem, a central processing subsystem, and a peripheral subsystem.
  • the communication device in this embodiment can be used as a modulation subsystem therein.
  • the modulation subsystem may include a processor 1303, an interface 1304.
  • the processor 1303 performs the functions of the processing unit 720, and the interface 1304 performs the functions of the transceiver unit 710.
  • the modulation subsystem includes a memory 1306, a processor 1303, and a program stored on the memory 1306 and executable on the processor, and the processor 1303 executes the program to implement the terminal device side in the above method embodiment. Methods.
  • the memory 1306 may be non-volatile or volatile, and its location may be located inside the modulation subsystem or in the processing device 1300 as long as the memory 1306 can be connected to the The processor 1303 is sufficient.
  • a computer readable storage medium having stored thereon an instruction for executing a method on a terminal device side in the above method embodiment when the instruction is executed.
  • a computer program product comprising instructions which, when executed, perform the method on the terminal device side in the above method embodiment.
  • the embodiment of the present application further provides another communication device, which may be a network device or a circuit.
  • the communication device can be used to perform the actions performed by the network device in the above method embodiments.
  • the device 1400 includes one or more radio frequency units, such as a remote radio unit (RRU) 1410 and one or more basebands.
  • a baseband unit (BBU) also referred to as a digital unit, DU) 1420.
  • the RRU 1410 may be referred to as a transceiver module, corresponding to the transceiver unit 810 in FIG. 8.
  • the transceiver module may also be referred to as a transceiver, a transceiver circuit, or a transceiver, etc., which may include at least one antenna 1411.
  • the RRU 1410 portion is mainly used for transceiving radio frequency signals and converting radio frequency signals with baseband signals, for example, for transmitting various information (for example, random access requests) to terminal devices.
  • the BBU 1410 portion is mainly used for performing baseband processing, controlling a base station, and the like.
  • the RRU 1410 and the BBU 1420 may be physically disposed together or physically separated, that is, distributed base stations.
  • the BBU 1420 is a control center of the base station, and may also be referred to as a processing module. It may correspond to the processing unit 820 in FIG. 8 and is mainly used to perform baseband processing functions, such as channel coding, multiplexing, modulation, spreading, and the like.
  • the BBU processing module
  • the BBU may be used to control a base station to perform an operation procedure of the network device in the foregoing method embodiment, for example, a first random access resource and a second configuration parameter.
  • the BBU 1420 may be composed of one or more boards, and multiple boards may jointly support a single access standard radio access network (such as an LTE network), or may support different access systems respectively. Radio access network (such as LTE network, 5G network or other network).
  • the BBU 1420 also includes a memory 1421 and a processor 1422.
  • the memory 1421 is used to store necessary instructions and data.
  • the processor 1422 is configured to control the base station to perform necessary actions, for example, to control the base station to perform an operation procedure of the network device in the foregoing method embodiment.
  • the memory 1421 and the processor 1422 can serve one or more boards. That is, the memory and processor can be individually set on each board. It is also possible that multiple boards share the same memory and processor. In addition, the necessary circuits can be set on each board.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product.
  • the technical solution of the present application which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including
  • the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present application.
  • the foregoing storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

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Abstract

本申请提供了一种用于随机接入的方法、终端设备和网络设备，能够提高随机接入成功率。该方法，包括：终端设备根据当前激活的第一带宽部分BWP的配置参数执行数据传输，该第一BWP的配置参数包括第一资源偏移量，第一带宽和第一子载波间隔中的至少一项；该终端设备确定执行随机接入的第一随机接入资源和第二配置参数，该第二配置参数包括第二资源偏移量，第二带宽和第二子载波间隔中的至少一项；该终端设备在该第一随机接入资源上向该网络设备发送该随机接入请求；该终端设备根据该第二配置参数接收随机接入响应，该随机接入响应是该网络设备根据该随机接入请求发送的。

Description

用于随机接入的方法、终端设备和网络设备
本申请要求于2017年11月17日提交中国专利局、申请号为201711148671.2、申请名称为“用于随机接入的方法、终端设备和网络设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信领域，并且更具体地，涉及一种用于随机接入的方法、终端设备和网络设备。
背景技术
新一代无线通信技术(New Radio，NR)中引入了带宽部分(Bandwidth part，BWP)的概念。在一个宽带的载波上，网络设备可以为一个终端设备配置一个或多个下行BWP，和一个或多个上行BWP。每一个BWP对应一组配置参数，该配置参数包括：支持的在载波间隔，带宽的大小和频率位置。其中，带宽的大小指该BWP包含的连续物理资源块(Physical Resource Block，PRB)的数量，频率位置即该BWP在整个小区带宽或者载波带宽中的位置。
当终端设备从空闲模式接入一个小区或者一个宽带载波时，终端设备初始接入时对应的BWP通常可以称为初始BWP(initial BWP)。一个小区或一个宽带载波上通常可以有多个初始BWP。终端设备在接入到网络设备后，网络设备根据需要为终端设备配置的用于数据传输的BWP称为激活BWP。该BWP可以动态激活/去激活，通过动态激活/去激活的方式，可以快速调整终端设备使用的BWP。
现有技术中，终端设备在当前激活的BWP，例如第一BWP上执行数据传输时，被触发执行随机接入时，终端设备在第一BWP上执行随机接入，但这将会导致随机接入失败。比如，网络设备根据第一BWP的配置参数，例如第一配置参数调度终端设备接收随机接入响应的资源，以及终端设备发送随机接入消息3的资源，若第一BWP的配置参数(即，第一配置参数)与终端设备之前执行随机接入的BWP(即，初始BWP)的配置参数不同，例如资源偏移量不同时，终端设备将无法确定网络设备发送随机接入响应消息的位置，以及该终端设备发送随机接入消息3的资源。这样，终端设备将不能成功接收该随机接入响应消息，从而导致随机接入失败。又如，第一BWP内没有随机接入资源，终端设备将不能成功发送随机接入请求，也就不能继续后续的随机接入过程，从而导致随机接入失败。
发明内容
本申请提供一种用于随机接入的方法、终端设备和网络设备，能够提高随机接入成功率。
第一方面，提供了一种用于随机接入的方法，包括：
终端设备根据当前激活的第一带宽部分BWP的配置参数执行数据传输，该第一BWP的配置参数包括第一资源偏移量，第一带宽和第一子载波间隔中的至少一项；
该终端设备确定执行随机接入的第一随机接入资源和第二配置参数，该第二配置参数包括第二资源偏移量，第二带宽和第二子载波间隔中的至少一项；
该终端设备在该第一随机接入资源上向该网络设备发送该随机接入请求；
该终端设备根据该第二配置参数接收随机接入响应，该随机接入响应是该网络设备根据该随机接入请求发送的。
现有技术中，终端设备在当前激活的BWP(即，第一BWP)上执行数据传输时会导致随机接入失败。比如，网络设备根据第一配置参数调度终端设备接收随机接入响应的资源，若第一BWP的配置参数(即，第一配置参数)与终端设备之前执行随机接入的BWP(即，初始BWP)的配置参数不同，例如资源偏移量不同时，终端设备将无法确定网络设备发送随机接入响应消息的位置。这样，终端设备将不能成功接收该随机接入响应消息，从而导致随机接入失败。又如，第一BWP内没有随机接入资源，终端设备将不能成功发送随机接入请求，也就不能继续后续的随机接入过程，从而导致随机接入失败。或者，可能会导致与其他终端设备的干扰。
本申请实施例的方法，终端设备在当前激活的BWP上执行数据传输时，若被触发执行随机接入过程，则根据第一随机接入资源和第二配置参数执行随机接入，而不是在当前激活的BWP上执行随机接入。网络设备在确定终端设备被触发执行随机接入时，在第一随机接入资源和第二配置参数上执行相应地随机接入过程。由于终端设备能够在第一随机接入资源上发送随机接入请求，并且在后续的随机接入过程中，比如，终端设备接收随机接入响应消息时，网络设备和终端设备所理解的资源相同，从而能够提高随机接入的成功率，并能够降低对其他终端设备的干扰。
在一种可能的实现方式中，该方法还包括：该终端设备根据该随机接入响应向该网络设备发送随机接入消息3。
在一种可能的实现方式中，该终端设备根据该第二配置参数接收随机接入响应，包括：该终端设备根据该第二配置参数确定第一调度信息，该第一调度信息用于指示第一资源；
该终端设备在该第一资源上接收该网络设备发送的随机接入响应。
在一种可能的实现方式中，该终端设备根据该随机接入响应向该网络设备发送随机接入消息3，包括：
该终端设备根据该第二配置参数解析该随机接入响应携带的第二调度信息，该第二调度信息用于指示第二资源；
该终端设备在该第二资源上向该网络设备发送该随机接入消息3。
在一种可能的实现方式中，该第一随机接入资源和该第二配置参数与第一BWP相关联；或者，
该第一随机接入资源和该第二配置参数与第二BWP相关联；或者，
该第一随机接入资源为小区特定的随机接入资源，该小区特定的随机接入资源与该第二配置参数相关联；或者，
该第一随机接入资源和该第二配置参数与小区定义同步信号块SSB相关联。
通过定义多种第一随机接入资源和第二配置参数，可以更加灵活地进行随机接入。
进一步地，第二BWP为下述中的任一种：
与该第一BWP相关联的初始BWP、与第三BWP相关联的初始BWP、初始BWP、小区定义带宽部分BWP和与小区定义SSB相关联的BWP，其中，该第三BWP为激活该第一BWP时去激活的BWP。
该第一随机接入资源和该第二配置参数与第一BWP相关联，相当于在配置第一BWP的同时配置该第一随机接入资源和该第二配置参数，这样能够简化配置规则。
若第二BWP为第三BWP相关联的初始BWP、初始BWP、小区定义带宽部分BWP或与小区定义SSB相关联的BWP，由于这些BWP已经提前配置，或者说第一随机接入资源和该第二配置参数已经提前配置，那么在配置第一BWP时只需配置第一BWP与第二BWP的关联关系，而不必再通过相应地信令携带第一随机接入资源的信息和该第二配置参数的信息，从而能够节省信令开销。
在一种可能的实现方式中该第一随机接入资源的信息和/或该第二配置参数的信息通过无线资源控制RRC重配置信息携带；和/或
该第一随机接入资源的信息和/或该第二配置参数的信息通过系统广播消息携带。
通过现有信令携带第一随机接入资源的信息和/或该第二配置参数的信息，能够与现有技术更大程度地互通。
在一种可能的实现方式中，该RRC重配置消息或该系统广播消息携带该第二BWP的配置参数，该第一随机接入资源和该第二配置参数与第二BWP相关联，该第二BWP的配置参数包括该第二配置参数。
在一种可能的实现方式中，该方法还包括：
该终端设备接收网络设备发送的第一指示信息，该第一指示信息用于去激活或释放该第二BWP；
该终端设备根据该第一指示信息去激活或释放该第二BWP，且继续维护该第二BWP的该第二配置参数。
在一种可能的实现方式中，在该终端设备执行随机接入过程中或者在该终端设备发起随机接入后，该方法还包括：
该终端设备停止从该第一BWP接收BWP激活/去激活指示信息，或者停止监听该第一BWP的下行控制信息，或者去激活该第一BWP，或者释放该第一BWP。
在一种可能的实现方式中，在该终端设备执行随机接入过程中，该方法还包括：
若终端设备接收到去激活该第一BWP的指示信息，该终端设备停止该随机接入过程，或者该终端设备确定当前的随机接入过程失败。
在一种可能的实现方式中，在所述终端设备在第一随机接入资源上向所述网络设备发送随机接入请求之前，所述方法还包括：所述终端设备激活所述第二BWP。
在一种可能的实现方式中，该方法还包括：
该终端设备接收该网络设备发送的随机接入消息4；
该终端设备激活该第一BWP。
即，终端设备若在随机接入过程中去激活第一BWP，可以在随机接入成功后，激活第一BWP。
在一种可能的实现方式中，在该终端设备执行随机接入过程中，该方法还包括：
该终端设备接收该网络设备发送的第二指示信息，该第二指示信息用于激活第四BWP；
该终端设备根据与该第四BWP关联的第五BWP执行随机接入过程，该第五BWP为与第四BWP关联的初始BWP、初始BWP、小区定义带宽部分BWP或与小区定义SSB相关联的BWP。
在本申请实施例中，终端设备执行随机接入过程中，激活新的BWP，即第四BWP，终端设备和网络设备可以认为随机接入失败。此时，终端设备可以根据与第四BWP相关联的第五BWP继续执行随机接入，从而能够提高随机接入成功率。
在一种可能的实现方式中，该第一BWP与多个随机接入资源相关联；
其中，该终端设备确定第一随机接入资源，包括:
该终端设备从该多个随机接入资源中随机选择一个随机接入资源作为该第一随机接入资源。
在一种可能的实现方式中，该第一BWP与多个初始BWP相关联；
其中，该终端设备确定第一随机接入资源，包括：
该终端设备根据下列至少一项确定该第一随机接入资源：
该终端设备将该多个初始BWP中的第一初始BWP的随机接入资源作为该第一随机接入资源，其中，该第一初始BWP的随机接入资源与该第一BWP所关联的随机接入资源相同，和/或，该第一BWP为该多个初始BWP中的同步信号块SSB测量结果最好的初始BWP，该测量结果为参考信号接收功率RSRP、参考信号接收质量RSRQ和信号噪声干扰比SINR中的至少一种；
该终端设备将该多个初始BWP中任一BWP的随接入资源作为该第一随机接入资源；
该终端设备选择该多个BWP中与该第一BWP具有最大的资源交集的初始BWP的随机接入资源作为该第一随机接入资源。
终端设备通过多种规则选择第一随机接入资源和第二配置参数，能够提高系统灵活性。
第二方面，提供了一种用于随机接入的方法，包括：
网络设备根据当前激活的第一带宽部分BWP的配置参数执行数据传输，该第一BWP的配置参数包括第一资源偏移量，第一带宽和第一子载波间隔中的至少一项；
该网络设备确定第一随机接入资源和第二配置参数；
该网络设备在第一随机接入资源上接收终端设备发送的随机接入请求；
该网络设备根据该随机接入请求和第二配置参数，向该终端设备发送随机接入响应，该第二配置参数包括第二资源偏移量，第二带宽和第二子载波间隔中的至少一项。
在一种可能的实现方式中，该方法还包括：
该网络设备接收该终端设备根据该随机接入响应发送的随机接入消息3。
在一种可能的实现方式中，
该第一随机接入资源和该第二配置参数与第一BWP相关联；或者
该第一随机接入资源和该第二配置参数与第二BWP相关联；或者，
该第一随机接入资源为小区特定的随机接入资源，该小区特定的随机接入资源与该第二配置参数相关联；或者，
该第一随机接入资源和该第二配置参数与小区定义同步信号块SSB相关联。
在一种可能的实现方式中，该第二BWP为下述中任一种：
与该第一BWP相关联的初始BWP、与第三BWP相关联的初始BWP、初始BWP、小区定义带宽部分BWP和与小区定义SSB相关联的BWP，其中，该第三BWP为激活该第一BWP时去激活的BWP。
在一种可能的实现方式中，在该网络设备确定第一随机接入资源和第二配置参数之前，该方法还包括：
该网络设备向该终端设备发送无线资源控制RRC重配置消息和/或系统广播消息，该RRC重配置消息携带该第一随机接入资源的信息和/或该第二配置参数的信息，和/或该系统广播消息携带该第一随机接入资源的信息和/或该第二配置参数的信息。
在一种可能的实现方式中，该RRC重配置消息或该系统广播消息包括该第二BWP的配置参数，该第一随机接入资源和该第二配置参数与第二BWP。
第三方面，本申请提供了一种终端设备，用于执行上述第一方面或第一方面的任意可能的实现方式中的方法。
第四方面，本申请提供了一种网络设备，用于执行上述第二方面或第二方面的任意可能的实现方式中的方法。
第五方面，本申请提供了一种终端设备，该终端设备包括：存储器、处理器、收发器及存储在该存储器上并可在该处理器上运行的计算机程序，其特征在于，该处理器执行该计算机程序时执行上述第一方面或第一方面的任意可能的实现方式中的方法。
第六方面，本申请提供了一种网络设备，该网络设备包括：存储器、处理器、收发器及存储在该存储器上并可在该处理器上运行的计算机程序，其特征在于，该处理器执行该计算机程序时执行上述第二方面或第二方面的任意可能的实现方式中的方法。
第七方面，本申请提供了一种计算机可读介质，用于存储计算机程序，该计算机程序包括用于执行第一方面或第一方面的任意可能的实现方式中的方法的指令。
第八方面，本申请提供了一种计算机可读介质，用于存储计算机程序，该计算机程序包括用于执行第二方面或第二方面的任意可能的实现方式中的方法的指令。
第九方面，本申请提供了一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行上述第一方面或第一方面的任意可能的实现方式中的方法。
第十方面，本申请提供了一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行上述第二方面或第二方面的任意可能的实现方式中的方法。
第十一方面，本申请提供了一种芯片，包括：输入接口、输出接口、至少一个处理器、存储器，该输入接口、输出接口、该处理器以及该存储器之间通过内部连接通路互相通信，该处理器用于执行该存储器中的代码，当该代码被执行时，该处理器用于执行上述第一方面或第一方面的任意可能的实现方式中的方法。
第十二方面，本申请提供了一种芯片，包括：输入接口、输出接口、至少一个处理器、存储器，该输入接口、输出接口、该处理器以及该存储器之间通过内部连接通路互相通信，该处理器用于执行该存储器中的代码，当该代码被执行时，该处理器用于执行上述第二方面或第二方面的任意可能的实现方式中的方法。
附图说明
图1是本申请实施例提供的通信系统的示意性架构图。
图2是一个BWP的示意图。
图3是现有技术中基于竞争的随机接入方法的示意性流程图。
图4是随机接入响应消息的具体内容的示意图。
图5是本申请一个实施例的用于随机接入的方法的示意性流程图。
图6是本申请另一实施例的用于随机接入的方法的示意性流程图。
图7是本申请实施例提供的终端设备的示意性框图；
图8是本申请实施例提供的网络设备的示意性框图；
图9是本申请实施例提供的另一终端设备的示意性框图；
图10是本申请实施例提供的另一网络设备的示意性框图。
图11为本申请实施例提供的通信装置的示意性框图。
图12为本申请实施例提供的通信装置的另一示意性框图。
图13为本申请实施例提供的通信装置的再一示意性框图。
图14为本申请实施例提供的通信装置的再一示意性框图。
具体实施方式
下面将结合附图，对本申请中的技术方案进行描述。
应理解，本申请的技术方案可以应用于各种通信系统，例如：全球移动通信(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)系统、通用分组无线业务(General Packet Radio Service，GPRS)、长期演进(LTE)系统、先进的长期演进(LTE-A)系统、LTE频分双工(Frequency Division Duplex，FDD)系统、LTE时分双工(Time Division Duplex，TDD)、通用移动通信系统(Universal Mobile Telecommunication System，UMTS)、全球互联微波接入(Worldwide Interoperability for Microwave Access，WiMAX)通信系统、下一代通信系统(例如，第五代(fifth-generation，5G)通信系统)、多种接入系统的融合系统，或演进系统等。其中，5G系统也可以称为新一代无线接入技术(new radio access technology，NR)系统。
为便于理解本申请实施例，首先结合图1详细说明适用于本申请实施例的通信系统。图1是适用于本申请实施例的通信系统100的示意图。如图1所示，该通信系统100可以包括网络设备102和终端设备104-114。
应理解，该网络设备102可以是任意一种具有无线收发功能的设备或可设置于该设备的芯片，该设备包括但不限于：基站(例如，基站NodeB、演进型基站eNodeB、第五代(5G)通信系统中的网络设备(如传输点(transmission point，TP)、发送接收点(transmission reception point，TRP)、gNB、基站、小基站设备等)、未来通信系统中的网络设备、无线保真(Wireless-Fidelity，WiFi)系统中的接入节点、无线中继节点、无线回传节点等。
网络设备102可以与多个终端设备(例如图中所示的终端设备104-114)通信。
应理解，终端设备也可以称为用户设备(user equipment，UE)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通 信设备、用户代理或用户装置。本申请的实施例中的终端设备可以是手机(mobile phone)、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(Virtual Reality，VR)终端设备、增强现实(Augmented Reality，AR)终端设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程医疗(remote medical)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等等。本申请的实施例对应用场景不做限定。本申请中将前述终端设备及可设置于前述终端设备的芯片统称为终端设备。
此外，该通信系统100也可以是公共陆地移动网络(public land mobile network，PLMN)网络、设备到设备(device to device，D2D)网络、机器到机器(machine to machine，M2M)网络或者其他网络。图1仅为便于理解而示例的简化示意图，该通信系统100中还可以包括其他网络设备和终端设备，图1中未予以画出。
为便于理解本申请实施例，以下结合图1中示出的通信系统简单介绍BWP。
由于NR中，同一小区中不同终端设备的发射或者接收能力可能是不同的，系统可以为每个终端设备配置相应的带宽，这一部分配置给终端设备的带宽称为BWP，终端设备在自己的BWP上传输。系统针对不同的终端设备可以配置不同的BWP。每个BWP对应的配置参数包括：支持的子载波隔间隔，带宽的大小和资源偏移量。其中，子载波隔间隔可以通过Numerology进行配置，Numerology包括子载波间隔的配置和循环前缀长度的配置，带宽的大小指该BWP包含的连续PRB的数量，频率位置即该BWP在整个小区带宽或者载波带宽中的位置。
图2是一个BWP的资源的示意图。如图2所示，参考点是在绝对资源粒度上的PRB0(注意不是图中的PRB0)的位置，通常可以是整个小区带宽或者载波带宽的最低位置。BWP1的起始位置为图中所示的PRB0的位置。网络设备在向终端设备配置BWP1时，可以将图2所示的PRB0与参考点之间的资源偏移量通知给终端设备。此外，网络设备还可以将一个给定Numerology下的PRB索引(index)通知给终端设备，该PRB索引所指示的PRB是BWP1的结束位置，例如图2所示的BWP1的结束位置为PRB15，即该BWP1包括PRB0～PBR15。或者，网络设备可以直接通知终端设备BWP1的带宽。
也就是说，根据Numerology、资源偏移量和带宽大小可以唯一确定一个BWP，或者说，一个BWP与配置参数Numerology、资源偏移量和带宽相关联。
另外，通常情况下，终端设备的带宽能力小于整个小区或宽带载波的带宽，但是大于或等于配置给终端设备的一个具体的BWP的带宽。
当终端设备从空闲(idle)模式接入一个小区或者一个宽带载波时，终端设备初始接入时对应的BWP称为：初始BWP(initial BWP)。一个小区或一个宽带载波上通常可以有多个初始BWP。初始BWP可以理解为系统所配置的特有的用于初始接入的BWP。终端设备在接入到网络设备后，网络设备根据需要为终端设备配置的用于数据传输的BWP称为激活BWP。
本申请实施例中，将初始BWP理解为支持UE进行初始接入所使用的BWP。或者可以理解为UE在初始BWP上执行随机接入。或者可以理解为UE根据该初始BWP的随机接入资源和初始BWP的配置参数执行随机接入，此时，初始BWP的配置参数可以不包 括初始BWP的随机接入资源的信息。或者，可以理解为UE根据该初始BWP的配置参数执行随机接入，此时，初始BWP的配置参数可以包括初始BWP的随机接入资源的信息。应理解，本申请实施例中的随机接入资源是指，终端设备发送随机接入请求的资源，即物理随机接入信道(Physical Random Access Channel，PRACH)资源。
另外，通常而言，初始BWP上都具有SSB，系统信息(例如BWP的带宽，Numerology等)以及对应的随机接入资源的信息等其他必要的支持UE执行初始接入的信息。本申请中将其称之为初始BWP仅为方便描述，只要具有上述特征的BWP都在本申请的范围内，与是否一定称之为初始BWP无关。
在NR的第一版本中，即5G NR的Rel-15中，一个终端设备在一个服务小区上的任何一个时刻，最多只有一个激活的下行BWP和一个上行BWP。为了动态的转换终端设备激活的BWP，目前的方法是网络设备通过下行控制信息(Downlink Control Information，DCI)来动态的控制终端设备在不同配置参数下的BWP间进行转换。具体为：
(1)调度下行传输的DCI来控制终端设备进行下行BWP的转换。例如可以在调度下行传输的DCI中包含BWP的标识(Identification，ID)，这样可以指示终端设备激活该BWP ID对应的下行BWP并在该下行BWP上接收所述DCI调度的物理下行共享信道(Physical Downlink Shared Channel，PDSCH)。
(2)调度上行传输的DCI来控制终端设备进行上行BWP的转换。例如可以在调度上行传输的DCI中包含BWP ID，这样可以指示UE激活该BWP ID对应的上行BWP并在该上行BWP上传输所述DCI调度的物理上行共享信道(Physical Uplink Shared Channel，PUSCH)。
BWP的转换也可以理解为BWP的激活和去激活。例如，假设终端设备当前激活的下行BWP为BWP1。当终端设备收到一个调度下行传输的DCI中包含的BWP ID为BWP2时，那么终端设备进行BWP的转换意味着终端设备需要去激活下行BWP1，并激活下行BWP2。通过动态激活/去激活的方式，可以快速调整终端设备使用的BWP。
网络可以通过激活/去激活BWP的方式，动态改变终端设备使用的激活的BWP的带宽等其他配置。
在NR系统中，终端设备可以通过随机接入过程(Random Access Procedure)获得上行同步，终端设备也可以通过随机接入过程获得上行授权(UL grant)，或终端设备的时间对齐定时器(Timing Alignment Timer，TAT)超时，终端设备重新通过随机接入(Random Access，RA)获得上行同步。
具体地，在终端设备处于连接状态时，终端设备在下列情况下可以发起基于竞争的随机接入过程：
情况一：触发了终端设备需要发送调度请求(Scheduling Request，SR)，但是当前没有SR资源可用。
情况二：终端设备的SR传输达到最大次数。
情况三：终端设备的TAT超时且上行数据到达。
应理解，本申请并不限定仅在上述三种情况下触发随机接入，终端设备也可能在其他情况下发起随机接入。
基于竞争的随机接入(Contention Based Random Access)的接入过程如图3所示。
如图3所示的基于竞争的随机接入方法，在传统的小区或者一个载波上，执行基于竞争的随机接入方法过程包括S310～S340。
S310，终端设备向网络设备发送随机接入消息1(RA Msg1)，即随机接入请求或者随机接入前导码(Random Access Preamble)。
随机接入请求是在随机接入资源，即上行随机接入信道(Random Access Channel，RACH)上发送的，并且随机接入请求中携带的前导码(Preamble)暗示了该终端设备需要发送的随机接入消息3(RA Msg3)的大小。
S320，网络设备向终端设备发送随机接入响应(Random Access Response)，即RA Msg2。
网络设备接收到随机接入请求后，在下行共享信道上发送随机接入响应。随机接入响应由媒体接入控制(Media Access Control，MAC)层产生。随机接入响应的具体内容参见图4。图4中右侧的数字表示一行所占用的字节数。
图4中，定时提前控制(Timing Advance Command，TAC)字段中包含的是网络设备计算得到的终端设备需要在上行发送调整的TA值。
上行授权(UL Grant)字段表示为终端设备执行S330分配的上行资源的信息。
临时小区无线网络临时标识(Cell Radio Network Temporary Identifier，Temporary C-RNTI)--表示为UE分配的一个临时的标识符。
预留(Reserved)字段，暂时没有使用，为后续扩展等使用。
S330，终端设备根据随机接入响应中所指示的资源，在上行共享信道上发送随机接入消息3。
S340，网络设备向终端设备发送随机接入消息4。
随机接入消息4用于解决多个终端设备使用了相同的前导码时引发的冲突问题。
在非竞争的随机接入中，终端设备和网络设备只执行S310和S320。具体地可以参考现有技术，此处不再赘述。
在上述所描述的三种情况下，当触发随机接入时，终端设备都是默认在当前触发的小区或载波上执行随机接入。但是，在多BWP的场景下，一个小区或者一个宽带载波上的BWP资源配置非常动态和灵活。比如，不同的BWP可能对应不同的资源偏移量。另外，BWP之间也存在相互交叉的关系。比如，存在激活BWP和一个或多个初始BWP的情况下，如果终端设备在当前激活的BWP(例如，记作第一BWP)上执行随机接入，且第一BWP与该一个或多个初始BWP的配置参数，比如资源偏移量、子载波间隔或者带宽大小等不同时，将会导致随机接入失败或者导致对其他终端设备的干扰。
比如，若初始BWP配置参数(例如，记作：第一配置参数)与终端设备初始BWP的配置参数不同，终端设备将无法确定在随机接入过程中，网络设备发送随机接入响应消息的位置，以及该终端设备发送随机接入消息3的资源。举例来说，第一BWP的资源偏移量为5个PRB，初始BWP的资源偏移量为6个PRB，第一BWP的子载波间隔和带宽大小与初始BWP相同，若网络设备在索引为2的PRB中发送随机接入响应消息，即网络设备在第一BWP中的第二个PRB中发送随机接入响应消息，而终端设备认为网络设备在初始BWP的第二个PRB中发送随机接入响应消息，由于第一BWP和初始PRB的资源偏移量不同，因此，终端设备和网络设备所理解的资源实质上是不同的资源。这样，终端设 备将不能成功接收该随机接入响应消息，从而导致随机接入失败。或者，可能会导致与其他终端设备在这些PBR的传输冲突，导致相互干扰。
又如，第一BWP内没有随机接入资源，终端设备将不能成功发送随机接入请求，也就不能继续后续的随机接入过程，从而导致随机接入失败。
有鉴于此，本申请提供一种用于随机接入的方法，能够提高随机接入成功率，并能够降低对其他终端设备的干扰。
下面结合附图详细说明本申请实施例。
图5是从设备交互的角度示出的本申请一实施例用于随机接入的方法的示意性流程图。
S502，终端设备根据当前激活的第一BWP的配置参数执行数据传输，第一BWP的配置参数包括第一资源偏移量，第一带宽和第一子载波间隔中的至少一项。
资源偏移量可以理解为BWP的起始位置(比如，子载波或PRB等)与绝对参考点间相对偏移的资源大小，也就是说，该资源偏移量与BWP的位置相关。那么，对于第一资源偏移量，其可以理解为第一BWP的起始位置与绝对参考点间相对偏移的资源大小。资源偏移量可以通过PRB的数量来表征，但本申请实施例对此不作限定。
第一带宽为第一BWP的带宽大小。第一子载波间隔为第一BWP的子载波间隔，根据子载波间隔可确定一个PRB在频率上的起始位置或和/或结束位置。
应理解，终端设备根据第一BWP的配置参数执行数据传输时，网络设备也根据第一BWP的配置参数与该终端设备执行数据传输。还应理解，所谓的“数据传输”包括数据的发送和接收，比如，终端设备据第一BWP的配置参数向网络设备发送数据(例如，第一数据)时，网络设备根据第一BWP的配置参数接收第一数据。网络设备根据第一BWP的配置参数向终端设备发送数据(例如，第二数据)时，终端设备根据该第一BWP的配置参数接收第二数据。
本申请实施例中，终端设备可以由网络设备为其配置的一组参数：资源偏移量、带宽和第一子载波间隔，确定其所支持的带宽大小和资源位置，或者说可以确定一个BWP。或者也可以理解为该组参数对应一个BWP。
从这个概念上理解，网络设备为终端设备配置的多个BWP(例如，第一BWP)可以具有相同的带宽和子载波间隔，但频率偏移量不同。此时，第一BWP的参数和第二配置参数可以仅包括频率偏移量。或者，网络设备为终端设备配置的多个BWP可以具有相同的频率偏移量和子载波间隔，但带宽不同。此时，第一BWP的参数和第二配置参数可以仅包括带宽。或者，网络设备为终端设备配置的多个BWP可以具有相同的频率偏移量和带宽，但子载波间隔不同。此时，第一BWP的参数和第二配置参数可以仅包括子载波间隔。具有相同值的参数可以通过预定义或系统规定的方式实现，但本申请并不限定于此。
S504，终端设备在第一随机接入资源上向网络设备发送随机接入请求。相应地，网络设备在第一随机接入资源上接收该随机接入请求。
具体来讲，终端设备在根据第一BWP的配置参数执行数据传输过程中，若被触发执行随机接入过程，比如，在上述所描述的触发情况(1)～(3)中的任一种情况下，终端设备被触发执行随机接入过程，终端设备可以开始执行随机接入过程，即在第一随机接入资源上向网络设备发送随机接入请求。
可选地，在S504之前，该方法还可以包括：
S503，终端设备确定执行随机接入的第一随机接入资源。相应地，网络设备确定执行随机接入的第一随机接入资源。
即，终端设备首先确定第一随机接入资源，然后再开始执行随机接入过程。
S506，网络设备根据第二配置参数和第一随机接入请求，向终端设备发送随机接入响应。相应地，终端设备根据第二配置参数接收该随机接入响应。
其中，第二配置参数包括第二资源偏移量，第二带宽和第二子载波间隔中的至少一项。第二资源偏移量用于终端设备确定资源(比如，PRB)的位置。第二带宽用于终端设备确定在S506和下述步骤S508中可以使用的带宽(记作：band#1)的大小。第二子载波间隔为band#1的子载波间隔。
可选地，作为S506一种可能的实现方式，终端设备根据第二配置参数获取第一调度信息，第一调度信息用于指示第一资源；终端设备在第一资源上接收该随机接入响应。
也就是说，终端设备可以首先根据第二配置参数和第一调度信息确定发送该随机接入响应消息的第一资源。比如，第一调度信息可以是PRB的索引，终端设备根据该PRB的索引和第二配置参数可以确定该PRB的索引所指示的PRB在band#1中的位置。然后终端设备在第一资源上检测或接收该随机接入响应。
应理解，第一随机接入资源和第二配置参数对应，即终端设备若使用第一随机接入资源发送随机接入请求，则使用第二配置参数接收随机接入响应以及发送随机接入消息3。
可选地，在S506之前，该方法还可以包括：
S505，终端设备确定执行随机接入的第二配置参数。相应地，网络设备也确定执行随机接入的第二配置参数。
即，终端设备首先确定第二配置参数，然后再根据第二配置参数接收该随机接入响应。
应理解，S505可以在S504之前执行，也可以在S54之后执行，本申请实施例对此不作限定。还应理解，S505可以和S503同时执行，或者，S505也可以先于S503执行，或者S505也可以在S503之后执行，本申请实施例对此也不作限定。
现有技术中，终端设备在当前激活的BWP(即，第一BWP)上执行数据传输时会导致随机接入失败。比如，网络设备根据第一配置参数调度终端设备接收随机接入响应的资源，若第一BWP的配置参数(即，第一配置参数)与终端设备之前执行随机接入的BWP(即，初始BWP)的配置参数不同，例如资源偏移量不同时，终端设备将无法确定网络设备发送随机接入响应消息的位置。这样，终端设备将不能成功接收该随机接入响应消息，从而导致随机接入失败。又如，第一BWP内没有随机接入资源，终端设备将不能成功发送随机接入请求，也就不能继续后续的随机接入过程，从而导致随机接入失败。或者，可能会导致与其他终端设备的干扰。
本申请实施例的方法，终端设备在当前激活的BWP上执行数据传输时，若被触发执行随机接入过程，则根据第一随机接入资源和第二配置参数执行随机接入，而不是在当前激活的BWP上执行随机接入。网络设备在确定终端设备被触发执行随机接入时，在第一随机接入资源和第二配置参数上执行相应地随机接入过程。由于终端设备能够在第一随机接入资源上发送随机接入请求，并且在后续的随机接入过程中，比如，终端设备接收随机接入响应消息时，网络设备和终端设备所理解的资源相同，从而能够提高随机接入的成功 率，并能够降低对其他终端设备的干扰。
进一步地，该方法还可以包括：
S508，终端设备根据该随机接入响应向网络设备发送随机接入消息3。
作为S508的一种可能的实现方式，终端设备根据第二配置参数解析该随机接入响应消息携带的第二调度信息，该第二调度信息用于指示第二资源；终端设备在第二资源上向该网络设备发送该随机接入消息3。
也就是说，随机接入响应消息携带第二调度资源，终端设备接收到随机接入响应消息后，可以根据第二调度资源和第二配置参数确定第二资源。比如第二调度信息可以是PRB的索引，终端设备根据该PRB的索引和第二配置参数可以该PRB的索引所指示的PRB在band#1中的位置，然后终端设备在该一个或多个PRB上发送随时接入响应消息。
应理解，本申请实施例的可以应用关于基于竞争的随机接入中，还可以应用于非竞争的随机接入中，但本申请并不仅限于这两种场景，本申请还可以应用于其他的随机接入场景中。特殊地，执行非竞争随机接入时，也可以使用第一配置参数接收和解析随机接入响应的调度信息。
以下，对第一随机接入资源和第二配置参数进行详细说明。
可选地，第二配置参数与第一配置参数至少部分不同，和/或，第一BWP的资源不包括随机接入资源，随机接入资源用于发送随机接入请求。
第二配置参数与第一配置参数至少部分不同的意思是，第二配置参数可以与第一配置参数全部不同或部分不同。比如，第二资源偏移量可以与第一资源偏移量不同，即第一BWP的起始位置与band#1的起始位置不同。或者，第二带宽与第一带宽不同，即第一BWP的带宽大小与band#1的带宽大小不同。或者，第二子载波间隔与第一子载波间隔不同，即第一BWP的子载波间隔与band#1的子载波间隔不同。
第一BWP的资源不包括随机接入资源的意思是，第一BWP内没有可以用于发送随机接入请求的资源。在这种情况下，第一BWP的资源也就不包括第一随机接入资源。
可选地，作为本申请是一个实施例，第一随机接入资源和第二配置参数与第一BWP相关联。
比如，网络设备在向终端设备配置第一BWP，或者激活第一BWP时，或者待激活第一BWP，可以同时向终端设备配置BWP1。如，网络设备告知终端设备该BWP1的配置参数，即资源偏移量、带宽(即，带宽的大小)和在载波间隔中的至少一种，或者还可以告知终端设备该BWP1中的随机接入资源，或者该BWP1中的随机接入资源可以预先定义。若终端设备在第一BWP上执行数据传输时，即根据第一配置参数执行数据传输时，若被触发执行随机接入，则终端设备在BWP1上执行随机接入，即终端设备在BWP1上的随机接入资源(即，第一随机接入资源)发送随机接入请求，以及根据BWP1的配置参数(即，第二资源偏移量，第二带宽和第二子载波间隔中的至少一项)执行随机接入的后续步骤，比如接收随机接入响应，或者更进一步地发送随机接入消息3。
可选地，作为本申请是一个实施例，第一随机接入资源和第二配置参数与第二BWP相关联；或者，
第一随机接入资源为小区特定的随机接入资源，小区特定的随机接入资源与第二配置参数相关联；或者，
第一随机接入资源和第二配置参数与小区定义SSB相关联。
举例来说，第一随机接入资源和第二配置参数与第二BWP相关联可以理解为，第一随机接入资源和第二配置参数与第二BWP具有映射关系，或者终端设备可以根据第二BWP确定第一随机接入资源和第二配置参数。相应地，第一随机接入资源和第二配置参数与小区定义SSB相关联可以理解为，终端设备可以根据小区定义SSB确定第一随机接入资源和第二配置参数，或者第一随机接入资源和第二配置参数与小区定义SSB具有映射关系。
举例来说，第一随机接入资源为小区特定的随机接入资源可以理解为，该小区内的终端设备在进行随机接入时都使用第一随机接入资源发送随机接入请求。小区特定的随机接入资源与第二配置参数相关联可以理解为，根据小区特定的随机接入资源可以确定第二配置参数，或者根据第二配置和参数可以确定小区特定的随机接入资源，或者，小区特定的随机接入资源与第二配置参数具有映射关系。
本申请实施例中，小区定义SSB(cell defining SSB)指终端设备通过这个特性的SSB可以确定当前小区或当前载波的下行定时，以及根据该SSB的测量结果确定该小区或该载波的信号质量。
进一步地，第二BWP可以是下述中的任一种：
(1)与第一BWP相关联的初始BWP。
例如，将与第一BWP相关联的初始BWP记作：初始BWP2。也就是说，小区可以有多个初始BWP，不同的用于数据传输的BWP可以对应不同的初始BWP，即初始BWP2为该多个初始BWP中的一个特定的BWP。终端设备根据当前激活的BWP，即第一BWP可以确定初始BWP2。从而终端设备在第一BWP上执行数据传输时，若被触发执行随机接入，可以在初始BWP2上进行随机接入。
(2)与第三BWP相关联的初始BWP。
例如，将与第三BWP相关联的初始BWP记作：初始BWP3。BWP3即终端设备在第三BWP上执行数据传输时，被触发执行随机接入所使用的BWP。其中，第三BWP为激活所述第一BWP时去激活的BWP。
也就是说，第一BWP上执行数据传输时，若被触发执行随机接入，执行随机接入时使用的BWP为初始BWP3。或者说，终端设备在BWP3执行随机接入。
(3)小区定义BWP。
小区定义BWP可以理解为包括小区特定的随机接入资源的BWP。该小区内的终端设备在进行随机接入时都可以使用小区定义BWP。
(4)与小区定义SSB相关联的BWP。
本申请实施例中，小区定义SSB相关联的BWP是指小区定义SSB所在的BWP。该小区内的终端设备在进行随机接入时都可以使用与小区定义SSB相关联的BWP。
本申请实施例中，可以将与小区定义SSB关联的BWP定义为小区定义BWP，但本申请实施例对此不作限定。
(5)初始BWP。
即，终端设备可以使用小区中的一个或多个BWP中的任一BWP执行随机接入。
可选地，在本申请实施例中，若第一BWP与多个随机接入资源相关联，那么在S503 中，终端设备具体可以从该多个随机接入资源中随机选择一个随机接入资源作为第一随机接入资源。也就是说，第一随机接入资源为该多个随机接入资源中的任一个。
可选地，若第一BWP与多个初始BWP相关联，即终端设备可以在多个初始BWP上执行随机接入，那么在S503中，终端设备具体可以执行下列规则中的至少一种。
应理解，初始BWP即为该终端设备可以进行随机接入的BWP。第一BWP与多个初始BWP相关联可以理解为，可以由第一BWP确定该多个初始BWP，终端设备可以在该多个初始BWP中的任一BWP上执行随机接入。还应理解，一般情况下，用于随机接入的BWP包括一个随机接入资源。
规则一：终端设备将该多个初始BWP中的第一初始BWP的随机接入资源作为第一随机接入资源。
其中，与第一初始BWP的随机接入资源与第一BWP所关联的随机接入资源相同，和/或，第一BWP为对该多个初始BWP中的同步信号块SSB测量结果最好的初始BWP，该测量结果为参考信号接收功率RSRP、参考信号接收质量RSRQ和信号噪声干扰比SINR中的至少一种。
具体来讲，第一BWP关联一个随机接入资源，若多个初始BWP中某一初始BWP(即，第一BWP)的随机接入资源与第一BWP关联的随机接入资源相同，则终端设备将该初始BWP的随机接入资源作为第一随机接入资源。或者，终端设备可以对该多个BWP上发送的SSB进行测量，得到多个或多组测量结果，比如RSRP、接收质量RSRQ、和/或SINR的大小。容易理解，每个初始BWP对应一个或一组测量结果。然后，终端设备选择得到的多个或多组测量结果中最好的一个或一组测量结果所对应的初始BWP，即最大的RSRP、接收质量RSRQ、和/或SINR所对应的初始BWP的随机接入资源作为第一随机接入资源。若某一初始BWP只满足上述条件中的一种，则终端设备可以将满足上述条件的任一BWP的随机接入资源作为第一随机接入资源。
容易理解，终端设备将该初始BWP的配置参数作为第二配置参数。或者说，终端设备在该初始BWP上执行随机接入。
规则二：终端设备将该多个初始BWP中任一BWP的随时接入资源作为第一随机接入资源。
即，终端设备随机选择该多个BWP中的任一BWP的随机接入资源作为第一随机接入资源。
规则三：终端设备选择多个BWP中与第一BWP具有最大的资源交集的初始BWP的随机接入资源作为第一随机接入资源。
即，终端设备选择该多个BWP中频带与第一BWP的频带重叠部分最多的初始BWP的随机接入资源作为第一随机接入资源。
可选地，在S502或S504之前，该方法还可以包括：
网络设备向终端设备发送RRC重配置消息和/或系统广播消息，RRC重配置消息携带第一随机接入资源的信息和/或第二配置参数的信息，和/或系统广播消息携带第一随机接入资源的信息和/或第二配置参数的信息。
即，RRC重配置消息可以携带第一随机接入资源的信息和第二配置参数的信息；或者，RRC重配置消息可以携带第一随机接入资源的信息，系统广播消息可以携带第二配 置参数的信息；或者RRC重配置消息可以携带第二配置参数的信息，系统广播消息可以携带第一随机接入资源的信息；或者系统广播消息可以携带第一随机接入资源的信息和第二配置参数的信息，本申请实施例对此不作限定。
那么，在S504中，终端设备具体可以根据该RRC重配置消息和/或该系统广播消息确定第一随机接入资源和第二配置参数。
也就是说，终端设备在执行随机接入前，根据该RRC重配置消息和/或该系统广播消息可以获知第一随机接入资源和第二配置参数，进而终端设备可以根据第一随机接入资源和第二配置参数执行随机接入过程。
进一步地，该RRC重配置消息或该系统广播消息包括第二BWP的配置参数，第二BWP的配置参数包括第二配置参数。
这里可以理解为，网络设备通过该RRC重配置消息或该系统广播消息向网络设备配置第二BWP。
可选地，该方法还可以包括：
S510，网络设备向终端设备发送第一指示信息。该第一指示信息用于去激活或释放所述第二BWP；
S512，终端设备根据第一指示信息去激活或释放第二BWP，且继续维护第二BWP的配置参数。
应理解，S510和S512可以在S502或S504之前执行，也可以在S506或S508之后执行，本申请实施例对此不作限定。
还应理解，这里终端设备维护第二BWP的配置参数的意思是，终端设备继续保持或者保存第二BWP的配置参数，而不将其删除或丢弃。
也就是说，若在终端设备执行随机接入前，或终端设备在执行随机接入过程中，或终端设备在随机接入完成后，网络设备若去激活第二BWP，终端设备可以忽略或者不忽略该第一去激活命令，但继续在第二BWP上执行随机接入，或者终端设备在再一次在第一BWP上执行数据传输时被触发执行随机接入的过程中，终端设备仍然在第二BWP上执行随机接入。
可选地，在S504之前，该方法还可以包括：终端设备激活所述第二BWP。
即，终端设备首先激活第二BWP，然后再在第二BWP上执行随机接入。
另外，终端设备若在第二BWP上执行随机接入，也可以理解为终端设备已经激活第二BWP，然后才在第二BWP上执行随机接入。
可选地，在终端设备执行随机接入过程中，该方法还包括：
终端设备执行以下操作中的至少一种：
终端设备停止从第一BWP接收激活BWP去激活BWP的指示信息；
终端设备不再监听第一BWP的下行控制信息；
终端设备去激活第一BWP；
终端设备释放第一BWP。
比如，终端设备在执行S504、S506或者S508的过程中，或者在执行S504和S506之间，或者在执行S506和S508之间，或者在执行S508之后但终端设备还没有随机接入成功时，终端设备可以停止执行上述操作。也就是说，终端设备若在第一BWP上接收到 激活或者去激活某一BWP的指示信息，可以不根据该指示信息激活或者去激活该BWP。和/或，终端设备可以不再继续在第一BWP上监听下行控制信息。和/或，终端设备去激活或者释放第一BWP。
应理解，终端设备释放第一BWP可以理解为，终端设备不再使用第一BWP。
进一步地，该方法还可以包括：在随机接入成功后，终端设备激活所述第一BWP。
比如，在基于竞争的随机接入过程中，若在随机接入过程中去激活第一BWP，则终端设备在接收到随机接入消息4后，可以激活第一BWP。
又如，在非竞争的随机接入过程中，若在随机接入过程中去激活第一BWP，则终端设备在接收到随机接入响应后，可以激活第一BWP。
可选地，终端设备执行随机接入过程中，该方法还可以包括：
若终端设备接收到去激活第一BWP的指示信息，终端设备停止随机接入过程，或者终端设备确定当前的随机接入过程失败。
具体来讲，网络设备若需要去激活第一BWP，则向终端设备发送去激活第一BWP的指示信息，以去激活第一BWP。终端设备在接收到该去激活第一BWP的指示信息后，终端设备停止当前的随机接入过程，即不再执行后续的随机接入过程，或者终端设备认为当前的随机接入失败。
可选地，在终端设备执行随机接入过程中，该方法还可以包括：
终端设备接收所述网络设备发送的第二指示信息，第二指示信息用于激活第四BWP；
终端设备根据与所述第四BWP关联的第五BWP执行随机接入过程，第五BWP为与第四BWP关联的初始BWP、初始BWP、小区定义带宽部分BWP或与小区定义SSB相关联的BWP。
具体地，若在随机接入过程中，若另一BWP，例如，第四BWP被激活，则终端设备参照第一BWP被激活，即当前激活的BWP为第一BWP的场景执行随机接入。具体地可以参照上文的描述，此处不再赘述。应理解，这里的第四BWP可以理解为上文所描述的第一BWP，第五BWP可以理解为上文所描述的第二BWP，关于第五BWP的描述具体可以参数第二BWP的描述，这里也不再赘述。
在本申请实施例中，终端设备执行随机接入过程中，激活新的BWP，即第四BWP，终端设备和网络设备可以认为随机接入失败。此时，终端设备可以根据与第四BWP相关联的第五BWP继续执行随机接入。若当前激活的BWP不止包括第四BWP，即可能包括多个BWP，则终端设备从新激活的多个包括随机接入资源的BWP中选择一个BWP进行随机接入。具体地选择方法可以参照上述所描述的规则一～规则三，这里不再赘述。
下面，以终端设备为UE，网络设备为gNB为例，结合图6，所示的用于随机接入的方法的两个具体实施例，对本申请进行详细介绍。
图6示出了一个用于随机接入的方法的具体实施例。
S601，UE与gNB进行RRC连接。
UE从空闲模式或空闲状态发起RRC连接建立过程，与gNB建立RRC连接。具体地，UE在接入gNB的一个宽带小区或宽带载波时，可以是从其中的一个初始BWP接入。
应理解，对于空闲模式UE，UE可以是进入连接态之后才能识别这个初始BWP，在进入连接态之前，UE将其视为一个普通的小区。
S602，gNB向UE发送连接重配置消息。
UE接入到gNB后，gNB根据UE的当前业务情况，当前的宽带小区的资源情况等信息，确定为UE配置和/或激活一个或多个新的BWP。然后，gNB向UE发送RRC连接重配置消息，为UE配置一个或多个新的BWP。
可选地，在该RRC连接重配置消息中，gNB可以向UE发送激活其中的一个或多个BWP的指示信息，以为UE激活该一个或多个BWP。
gNB还可以通过RRC连接重配置消息携带下述中的任一种：
A、与小区定义SSB相关联的随机接入资源的信息以及与小区定义SSB相关联的BWP的配置信息。
与小区定义SSB相关联的BWP的配置信息可以包括：与小区定义SSB相关联的BWP的资源偏移量、Numerology和带宽(或带宽的大小)。
B、与激活的BWP相关联的初始BWP的信息。
即为UE配置新的激活的BWP或待激活的BWP时，gNB为UE配置与激活的BWP或待激活的BWP相关联的初始BWP的信息。该信息可以包括资源偏移量、Numerology和带宽。
比如，UE新激活的BWP为BWP3，与BWP3相关联的初始BWP为初始BWP1。当gNB为UE配置或激活BWP3时，gNB也为UE指定与BWP3关联的初始BWP11。
需要说明的是，初始BWP1的带宽范围可以是BWP3的带宽范围的子集，在实际中二者之间可以交叠，也可以不交叠，本申请对此不做任何限制。比如，激活的BWP本身可以没有随机接入资源，其关联的初始BWP1与其也不存在任何交叠。
C、与随机接入过程关联的配置信息。
该配置信息包括与随机接入过程相关的随机接入资源、资源偏移量、Numerology和带宽。
D、去激活初始BWP的指示信息。
若gNB网络为UE配置和激活新的BWP，在该重配置消息中去激活初始BWP，UE仍然继续保持初始BWP所对应的资源偏移量、Numerology和带宽。
例如，假设UE与gNB建立连接后，首先工作在BWP4，然后当网络为UE配置BWP3时，网络可以去激活BWP4，但是此时UE需要继续保留初始BWP1所对应的资源偏移量、Numerology和带宽，以待后续执行随机接入时使用。
E、配置的新的BWP的两套参数。
配置的新的BWP具有独立的两套参数，一套是与执行随机接入过程相关的参数，即UE在执行随机接入时，在随机接入过程需要应用的随机接入资源、资源偏移量、Numerology和带宽。另外一套参数是UE执行与普通的业务数据传输相关的参数，即UE执行业务数据传输时应用的资源偏移量、Numerology和带宽等参数。
除了在该S602中通过RRC重配置消息携带上述A～E外，也可以在gNB的广播消息中发送上述A～D，本申请实施例对此不作限定。
S603，UE接收到RRC连接重配置消息后，配置新的BWP，并向gNB发送RRC连接重配置完成消息。
S604，进一步地，UE接收到RRC连接重配置消息后，根据RRC的指示确定是否激 活新配置的BWP。
可选地，如果在RRC连接重配置过程中没有激活新配置的BWP，可以通过专用的BWP激活去激活消息对新配置的BWP进行激活。
S605，UE使用激活的BWP进行数据传输。
S606，UE确定随机接入资源或执行随机接入过程所使用的BWP。
在UE与gNB通过激活的BWP进行数据传输的过程中，UE被触发执行随机接入后，对应于S602的A～E，UE具体可以执行下述中的一种操作。
操作A1：UE确定在与小区定义SSB相关联的随机接入资源上发起随机接入，向gNB发送随机接入请求。
具体地，不管UE当前激活的BWP是一个还是多个，也不管当前UE激活的BWP是否对应有关联的随机接入资源，UE从与小区定义SSB相关联的随机接入资源上执行随机接入。
或者，也可以理解为UE被触发执行随机接入时，UE主动激活小区定义BWP，在小区定义BWP上发起随机接入。
操作B1：UE在与激活的BWP相关联的初始BWP发起随机接入。
操作C1：UE根据与随机接入过程关联的配置信息发起随机接入。
操作D1：UE根据保存的初始BWP的配置信息，在初始BWP的隋杰接入资源上执行随机接入。
操作E1：UE根据配置的该BWP与执行随机接入相关的配置参数，发起随机接入。
S607，UE根据上述A～D中任一项所对应的资源偏移量、Numerology和带宽接收随机接入响应。
对应与上述操作A1～操作E1，UE在S607中具体执行下述操作中的一种。
操作A2：UE在接收随机接入响应时，根据与小区定义SSB相关联的BWP的配置信息确定随机接入响应的接收。或者，
根据小区定义BWP的配置信息确定随机接入响应的接收。即确定用于传输随机接入响应的PRB的信息，Numerology信息等。
以及，根据与小区定义SSB相关联的BWP的配置信息或小区定义BWP的配置信息确定随机接入消息3的调度信息，发送随机接入消息3所使用的PRB等。
操作B2：UE根据与激活的BWP相关联的初始BWP的资源偏移量、Numerology和带宽确定随机接入响应的接收。以及进一步在收到随机接入响应后，根据与激活的BWP相关联的初始BWP的资源偏移量、Numerology和带宽确定随机接入消息3的调度信息。
操作C2：UE根据配置的与随机接入相关的资源偏移量、Numerology和带宽确定随机接入响应的接收。以及进一步在收到随机接入响应后，根据与随机接入相关的资源偏移量、Numerology和带宽确定随机接入消息3的调度信息。
操作D2：UE根据保存的初始BWP的资源偏移量、Numerology和带宽确定随机接入响应的接收。以及进一步在收到随机接入响应后，根据保存的初始BWP的资源偏移量、Numerology和带宽确定随机接入消息3的调度信息。
操作E2：UE根据配置的与激活的BWP相关的与执行随机接入相关的配置参数确定随机接入响应的接收。以及进一步在收到随机接入响应后，根据与激活的BWP相关的与 执行随机接入相关的配置参数信息确定随机接入消息3的调度信息。
S608，UE在收到随机接入响应后，根据上述操作A2～操作E2所确定的对应的随机接入消息3的调度信息，发送随机接入消息3。
S609，UE在发送随机接入消息3后，接收gNB发送的竞争解决消息，确定UE的随机接入过程是否成功。
因此，根据本申请的用于随机接入的方法，网络设备在确定终端设备被触发执行随机接入时，终端设备和网络设备基于所约定地信息或参数执行随机接入过程，使得网络设备和终端设备所理解的资源相同，从而能够提高随机接入的成功率。
上面结合图1至图6详细描述了本申请实施例提供的用于随机接入的方法，下面将结合图7至图10，描述本申请实施例提供的终端设备和网络设备。
图7示出了本申请实施例提供的终端设备700的示意性框图。该终端设备700包括：
收发单元710，用于根据当前激活的第一带宽部分BWP的配置参数执行数据传输，所述第一BWP的配置参数包括第一资源偏移量，第一带宽和第一子载波间隔中的至少一项；
处理单元720，用于确定执行随机接入的第一随机接入资源和第二配置参数，所述第二配置参数包括第二资源偏移量，第二带宽和第二子载波间隔中的至少一项；
所述收发单元710还用于，在所述第一随机接入资源上向所述网络设备发送所述随机接入请求；
所述收发单元720还用于，根据所述第二配置参数接收随机接入响应，所述随机接入响应是所述网络设备根据所述随机接入请求发送的。
可选地，所述收发单元还用于，根据所述随机接入响应向所述网络设备发送随机接入消息3。
可选地，所述处理单元具体用于：
根据所述第二配置参数确定第一调度信息，所述第一调度信息用于指示第一资源；
所述收发单元具体用于，在所述第一资源上接收所述网络设备发送的随机接入响应。
可选地，所述处理单元具体用于：
根据所述第二配置参数解析所述随机接入响应携带的第二调度信息，所述第二调度信息用于指示第二资源；
所述收发单元具体用于，在所述第二资源上向所述网络设备发送所述随机接入消息3。
可选地，所述第一随机接入资源和所述第二配置参数与所述第一BWP相关联；或者；
所述第一随机接入资源和所述第二配置参数与第二BWP相关联；或者，
所述第一随机接入资源为小区特定的随机接入资源，所述小区特定的随机接入资源与所述第二配置参数相关联；或者，
所述第一随机接入资源和所述第二配置参数与小区定义同步信号块SSB相关联。
可选地，所述第二BWP为下述中的任一种：
与所述第一BWP相关联的初始BWP、与第三BWP相关联的初始BWP、初始BWP、小区定义带宽部分BWP和与小区定义SSB相关联的BWP，其中，所述第三BWP为激活所述第一BWP时去激活的BWP。
可选地，所述第一随机接入资源的信息和/或所述第二配置参数的信息通过无线资源控制RRC重配置信息携带；和/或
所述第一随机接入资源的信息和/或所述第二配置参数的信息通过系统广播消息携带。
可选地，所述RRC重配置消息或所述系统广播消息包括所述第二BWP的配置参数，所述第二BWP的配置参数包括所述第二配置参数。
可选地，所述接收单元还用于：
接收所述网络设备发送的第一指示信息，所述第一指示信息用于去激活或释放所述第二BWP。
所述处理根据所述第一指示信息去激活或释放所述第二BWP，且继续维护所述第二BWP的所述第二配置参数。
可选地，所述处理单元还用于：
停止从所述第一BWP接收BWP激活/去激活指示信息，或者停止监听所述第一BWP的下行控制信息，或者去激活所述第一BWP，或者释放所述第一BWP。
可选地，若所述收发单元接收到去激活所述第一BWP的指示信息，所述处理单元停止所述随机接入过程，或者所述终端设备确定当前的随机接入过程失败。
应理解，这里的终端设备700以功能单元的形式体现。这里的术语“单元”可以指应用特有集成电路(application specific integrated circuit，ASIC)、电子电路、用于执行一个或多个软件或固件程序的处理器(例如共享处理器、专有处理器或组处理器等)和存储器、合并逻辑电路和/或其它支持所描述的功能的合适组件。在一个可选例子中，本领域技术人员可以理解，终端设备700可以具体为上述各方法实施例中的终端设备，终端设备700可以用于执行上述各方法实施例中与终端设备对应的各个流程和/或步骤，为避免重复，在此不再赘述。
图8示出了本申请实施例提供的网络设备800的示意性框图。该网络设备800包括：
收发单元810，用于根据当前激活的第一带宽部分BWP的配置参数执行数据传输，所述第一BWP的配置参数包括第一资源偏移量，第一带宽和第一子载波间隔中的至少一项；
处理单元820，用于确定第一随机接入资源和第二配置参数；
所述收发单元810还用于，在第一随机接入资源上接收终端设备发送的随机接入请求；
所述收发单元810还用于，根据所述随机接入请求和第二配置参数，向所述终端设备发送随机接入响应，所述第二配置参数包括第二资源偏移量，第二带宽和第二子载波间隔中的至少一项。
可选地，所述收发单元还用于：
接收所述终端设备根据所述随机接入响应发送的随机接入消息3。
可选地，所述第一随机接入资源和所述第二配置参数与所述第一BWP相关联；或者；
所述第一随机接入资源和所述第二配置参数与第二BWP相关联；或者，
所述第一随机接入资源为小区特定的随机接入资源，所述小区特定的随机接入资源与所述第二配置参数相关联；或者，
所述第一随机接入资源和所述第二配置参数与小区定义同步信号块SSB相关联。
可选地，所述第二BWP为下述中任一种：
与所述第一BWP相关联的初始BWP、与第三BWP相关联的初始BWP、初始BWP、小区定义带宽部分BWP和与小区定义SSB相关联的BWP，其中，所述第三BWP为激活所述第一BWP时去激活的BWP。
可选地，所述收发单元还用于，
向所述终端设备接收发送无线资源控制RRC重配置消息和/或系统广播消息，所述RRC重配置消息携带所述第一随机接入资源的信息和/或所述第二配置参数的信息，和/或所述系统广播消息携带所述第一随机接入资源的信息和/或所述第二配置参数的信息。
可选地，所述RRC重配置消息或所述系统广播消息包括所述第二BWP的配置参数，所述第二BWP的配置参数包括所述第二配置参数。
应理解，这里的网络设备800以功能单元的形式体现。这里的术语“单元”可以指ASIC、电子电路、用于执行一个或多个软件或固件程序的处理器(例如共享处理器、专有处理器或组处理器等)和存储器、合并逻辑电路和/或其它支持所描述的功能的合适组件。在一个可选例子中，本领域技术人员可以理解，网络设备800可以具体为上述各方法实施例中的网络设备，网络设备800可以用于执行上述各方法实施例中与网络设备对应的各个流程和/或步骤，为避免重复，在此不再赘述。
图9示出了本申请实施例提供的终端设备900。该终端设备可以包括处理器910、收发器920和存储器930，该处理器910、收发器920和存储器930通过内部连接通路互相通信。图7中的处理单元720所实现的相关功能可以由处理器910来实现，收发单元710所实现的相关功能可以由处理器910控制收发器920来实现。
该处理器910可以包括是一个或多个处理器，例如包括一个或多个中央处理单元(central processing unit，CPU)，在处理器是一个CPU的情况下，该CPU可以是单核CPU，也可以是多核CPU。
该收发器920用于发送和接收数据和/或信号，以及接收数据和/或信号。该收发器可以包括发射器和接收器，发射器用于发送数据和/或信号，接收器用于接收数据和/或信号。
该存储器930包括但不限于是随机存取存储器(random access memory，RAM)、只读存储器(read-only memory，ROM)、可擦除可编程存储器(erasable programmable read only memory，EPROM)、只读光盘(compact disc read-only memory，CD-ROM)，该存储器930用于存储相关指令及数据。
存储器930用于存储终端设备的程序代码和数据，可以为单独的器件或集成在处理器910中。
具体地，所述处理器910用于控制收发器与网络设备进行信息传输。具体可参见方法实施例中的描述，在此不再赘述。
可以理解的是，图9仅仅示出了终端设备的简化设计。在实际应用中，终端设备还可以分别包含必要的其他元件，包含但不限于任意数量的收发器、处理器、控制器、存储器等，而所有可以实现本申请的终端设备都在本申请的保护范围之内。
在一种可能的设计中，终端设备900可以被替换为芯片装置，例如可以为可用于终端设备中的通信芯片，用于实现终端设备中处理器910的相关功能。该芯片装置可以为实现 相关功能的现场可编程门阵列，专用集成芯片，系统芯片，中央处理器，网络处理器，数字信号处理电路，微控制器，还可以采用可编程控制器或其他集成芯片。该芯片中，可选的可以包括一个或多个存储器，用于存储程序代码，当所述代码被执行时，使得处理器实现相应的功能。
图10示出了本申请实施例提供的网络设备1000。该网络设备可以包括处理器1010、收发器1020和存储器1030，该处理器1010、收发器1020和存储器1030通过内部连接通路互相通信。图8中的处理单元820所实现的相关功能可以由处理器1010来实现，收发单元810所实现的相关功能可以由处理器1010控制收发器1020来实现。
该处理器1010可以包括是一个或多个处理器，例如包括一个或多个CPU，在处理器是一个CPU的情况下，该CPU可以是单核CPU，也可以是多核CPU。
该收发器1020用于发送和接收数据和/或信号，以及接收数据和/或信号。该收发器可以包括发射器和接收器，发射器用于发送数据和/或信号，接收器用于接收数据和/或信号。
该存储器1030包括但不限于是RAM、ROM、EPROM、CD-ROM，该存储器1030用于存储相关指令及数据。
存储器1030用于存储网络设备的程序代码和数据，可以为单独的器件或集成在处理器1010中。
具体地，所述处理器1010用于控制收发器与终端设备进行信息传输。具体可参见方法实施例中的描述，在此不再赘述。
可以理解的是，图10仅仅示出了网络设备的简化设计。在实际应用中，网络设备还可以分别包含必要的其他元件，包含但不限于任意数量的收发器、处理器、控制器、存储器等，而所有可以实现本申请的网络设备都在本申请的保护范围之内。
在一种可能的设计中，网络设备1000可以被替换为芯片装置，例如可以为可用于网络设备中的通信芯片，用于实现网络设备中处理器1010的相关功能。该芯片装置可以为实现相关功能的现场可编程门阵列，专用集成芯片，系统芯片，中央处理器，网络处理器，数字信号处理电路，微控制器，还可以采用可编程控制器或其他集成芯片。该芯片中，可选的可以包括一个或多个存储器，用于存储程序代码，当所述代码被执行时，使得处理器实现相应的功能。
本申请实施例还提供一种通信装置，该通信装置可以是终端设备也可以是电路。该通信装置可以用于执行上述方法实施例中由终端设备所执行的动作。
当该通信装置为终端设备时，图11示出了一种简化的终端设备的结构示意图。便于理解和图示方便，图11中，终端设备以手机作为例子。如图11所示，终端设备包括处理器、存储器、射频电路、天线以及输入输出装置。处理器主要用于对通信协议以及通信数据进行处理，以及对终端设备进行控制，执行软件程序，处理软件程序的数据等。存储器主要用于存储软件程序和数据。射频电路主要用于基带信号与射频信号的转换以及对射频信号的处理。天线主要用于收发电磁波形式的射频信号。输入输出装置，例如触摸屏、显示屏，键盘等主要用于接收用户输入的数据以及对用户输出数据。需要说明的是，有些种类的终端设备可以不具有输入输出装置。
当需要发送数据时，处理器对待发送的数据进行基带处理后，输出基带信号至射频电路，射频电路将基带信号进行射频处理后将射频信号通过天线以电磁波的形式向外发送。 当有数据发送到终端设备时，射频电路通过天线接收到射频信号，将射频信号转换为基带信号，并将基带信号输出至处理器，处理器将基带信号转换为数据并对该数据进行处理。为便于说明，图11中仅示出了一个存储器和处理器。在实际的终端设备产品中，可以存在一个或多个处理器和一个或多个存储器。存储器也可以称为存储介质或者存储设备等。存储器可以是独立于处理器设置，也可以是与处理器集成在一起，本申请实施例对此不做限制。
在本申请实施例中，可以将具有收发功能的天线和射频电路视为终端设备的收发单元，将具有处理功能的处理器视为终端设备的处理单元。如图11所示，终端设备包括收发单元1110和处理单元1120。收发单元也可以称为收发器、收发机、收发装置等。处理单元也可以称为处理器，处理单板，处理模块、处理装置等。可选的，可以将收发单元1110中用于实现接收功能的器件视为接收单元，将收发单元1110中用于实现发送功能的器件视为发送单元，即收发单元1110包括接收单元和发送单元。收发单元有时也可以称为收发机、收发器、或收发电路等。接收单元有时也可以称为接收机、接收器、或接收电路等。发送单元有时也可以称为发射机、发射器或者发射电路等。
应理解，收发单元1110用于执行上述方法实施例中终端设备侧的发送操作和接收操作，处理单元1120用于执行上述方法实施例中终端设备上除了收发操作之外的其他操作。
例如，在一种实现方式中，收发单元1110用于执行图5中的S502中终端设备侧的发送或接收操作、S504中终端设备侧的发送操作、S506中终端设备侧的接收操作和/或S508中终端设备侧的发送操作，和/或收发单元1110还用于执行本申请实施例中终端设备侧的其他收发步骤。处理单元1120，用于执行图5中的S503和S504，和/或处理单元1120还用于执行本申请实施例中终端设备侧的其他处理步骤。
再例如，在另一种实现方式中，收发单元1110用于执行图6中S601、S602、S605、S607和S609中终端设备侧的接收操作，以及S601、S603、S605和S608中终端设备侧的发送操作，和/或收发单元1120还用于执行本申请实施例中终端设备侧的其他收发步骤。处理单元1120用于执行图6中的S604和S606，和/或处理单元1120还用于执行本申请实施例中终端设备侧的其他处理步骤。
当该通信装置为芯片时，该芯片包括收发单元和处理单元。其中，收发单元可以是输入输出电路、通信接口；处理单元为该芯片上集成的处理器或者微处理器或者集成电路。
本实施例中的通信装置为终端设备时，可以参照图12所示的设备。作为一个例子，该设备可以完成类似于图9中处理器910的功能。在图12中，该设备包括处理器1210，发送数据处理器1220，接收数据处理器1230。上述实施例中的处理单元720可以是图12中的该处理器1210，并完成相应的功能。上述实施例中的收发单元710可以是图12中的发送数据处理器1220，和/或接收数据处理器1230。虽然图12中示出了信道编码器、信道解码器，但是可以理解这些模块并不对本实施例构成限制性说明，仅是示意性的。
图13示出本实施例的另一种形式。处理装置1300中包括调制子系统、中央处理子系统、周边子系统等模块。本实施例中的通信装置可以作为其中的调制子系统。具体的，该调制子系统可以包括处理器1303，接口1304。其中处理器1303完成上述处理单元720的功能，接口1304完成上述收发单元710的功能。作为另一种变形，该调制子系统包括存储器1306、处理器1303及存储在存储器1306上并可在处理器上运行的程序，该处理器 1303执行该程序时实现上述方法实施例中终端设备侧的方法。需要注意的是，所述存储器1306可以是非易失性的，也可以是易失性的，其位置可以位于调制子系统内部，也可以位于处理装置1300中，只要该存储器1306可以连接到所述处理器1303即可。
作为本实施例的另一种形式，提供一种计算机可读存储介质，其上存储有指令，该指令被执行时执行上述方法实施例中终端设备侧的方法。
作为本实施例的另一种形式，提供一种包含指令的计算机程序产品，该指令被执行时执行上述方法实施例中终端设备侧的方法。
本申请实施例还提供另一种通信装置，该通信装置可以是网络设备也可以是电路。该通信装置可以用于执行上述方法实施例中由网络设备所执行的动作。
本实施例中的装置为网络设备时，该网络设备可以如图14所示，装置1400包括一个或多个射频单元，如远端射频单元(remote radio unit,RRU)1410和一个或多个基带单元(baseband unit，BBU)(也可称为数字单元，digital unit，DU)1420。所述RRU 1410可以称为收发模块，与图8中的收发单元810对应，可选地，该收发模块还可以称为收发机、收发电路、或者收发器等等，其可以包括至少一个天线1411和射频单元1412。所述RRU 1410部分主要用于射频信号的收发以及射频信号与基带信号的转换，例如用于向终端设备发送各种信息(例如，随机接入请求)。所述BBU 1410部分主要用于进行基带处理，对基站进行控制等。所述RRU 1410与BBU 1420可以是物理上设置在一起，也可以物理上分离设置的，即分布式基站。
所述BBU 1420为基站的控制中心，也可以称为处理模块，可以与图8中的处理单元820对应，主要用于完成基带处理功能，如信道编码，复用，调制，扩频等等。例如所述BBU(处理模块)可以用于控制基站执行上述方法实施例中关于网络设备的操作流程，例如，第一随机接入资源和第二配置参数等。
在一个示例中，所述BBU 1420可以由一个或多个单板构成，多个单板可以共同支持单一接入制式的无线接入网(如LTE网)，也可以分别支持不同接入制式的无线接入网(如LTE网，5G网或其他网)。所述BBU 1420还包括存储器1421和处理器1422。所述存储器1421用以存储必要的指令和数据。所述处理器1422用于控制基站进行必要的动作，例如用于控制基站执行上述方法实施例中关于网络设备的操作流程。所述存储器1421和处理器1422可以服务于一个或多个单板。也就是说，可以每个单板上单独设置存储器和处理器。也可以是多个单板共用相同的存储器和处理器。此外每个单板上还可以设置有必要的电路。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的 划分，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，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请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。
所述功能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，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请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)执行本申请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、ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (36)

  1. 一种用于随机接入的方法，其特征在于，包括：
    终端设备根据当前激活的第一带宽部分BWP的配置参数执行数据传输，所述第一BWP的配置参数包括第一资源偏移量，第一带宽和第一子载波间隔中的至少一项；
    所述终端设备确定执行随机接入的第一随机接入资源和第二配置参数，所述第二配置参数包括第二资源偏移量，第二带宽和第二子载波间隔中的至少一项；
    所述终端设备在所述第一随机接入资源上向所述网络设备发送所述随机接入请求；
    所述终端设备根据所述第二配置参数接收随机接入响应，所述随机接入响应是所述网络设备根据所述随机接入请求发送的。
  2. 如权利要求1所述的方法，其特征在于，所述方法还包括：
    所述终端设备根据所述随机接入响应向所述网络设备发送随机接入消息3。
  3. 如权利要求1或2所述的方法，其特征在于，所述终端设备根据所述第二配置参数接收随机接入响应，包括：
    所述终端设备根据所述第二配置参数确定第一调度信息，所述第一调度信息用于指示第一资源；
    所述终端设备在所述第一资源上接收所述网络设备发送的随机接入响应。
  4. 如权利要求2所述的方法，其特征在于，所述终端设备根据所述随机接入响应向所述网络设备发送随机接入消息3，包括：
    所述终端设备根据所述第二配置参数解析所述随机接入响应携带的第二调度信息，所述第二调度信息用于指示第二资源；
    所述终端设备在所述第二资源上向所述网络设备发送所述随机接入消息3。
  5. 如权利要求1-4中任一项所述的方法，其特征在于，
    所述第一随机接入资源和所述第二配置参数与所述第一BWP相关联；或者；
    所述第一随机接入资源和所述第二配置参数与第二BWP相关联；或者，
    所述第一随机接入资源为小区特定的随机接入资源，所述小区特定的随机接入资源与所述第二配置参数相关联；或者，
    所述第一随机接入资源和所述第二配置参数与小区定义同步信号块SSB相关联。
  6. 如权利要求5所述的方法，其特征在于，所述第二BWP为下述中的任一种：
    与所述第一BWP相关联的初始BWP、与第三BWP相关联的初始BWP、初始BWP、小区定义带宽部分BWP和与小区定义SSB相关联的BWP，其中，所述第三BWP为激活所述第一BWP时去激活的BWP。
  7. 如权利要求5或6所述的方法，其特征在于，
    所述第一随机接入资源的信息和/或所述第二配置参数的信息通过无线资源控制RRC重配置信息携带；和/或
    所述第一随机接入资源的信息和/或所述第二配置参数的信息通过系统广播消息携带。
  8. 如权利要求7所述的方法，其特征在于，所述RRC重配置消息或所述系统广播消 息携带所述第二BWP的配置参数，所述第二BWP的配置参数包括所述第二配置参数。
  9. 如权利要求8所述的方法，其特征在于，所述方法还包括：
    所述终端设备接收网络设备发送的第一指示信息，所述第一指示信息用于去激活或释放所述第二BWP；
    所述终端设备根据所述第一指示信息去激活或释放所述第二BWP，且继续维护所述第二BWP的所述第二配置参数。
  10. 如权利要求1-9中任一项所述的方法，其特征在于，在所述终端设备执行随机接入过程中或者在所述终端设备发起随机接入后，所述方法还包括：
    所述终端设备停止从所述第一BWP接收BWP激活/去激活指示信息，或者停止监听所述第一BWP的下行控制信息，或者去激活所述第一BWP，或者释放所述第一BWP。
  11. 如权利要求1-10中任一项所述的方法，其特征在于，在所述终端设备执行随机接入过程中，所述方法还包括：
    若终端设备接收到去激活所述第一BWP的指示信息，所述终端设备停止所述随机接入过程，或者所述终端设备确定当前的随机接入过程失败。
  12. 一种用于随机接入的方法，其特征在于，包括：
    网络设备根据当前激活的第一带宽部分BWP的配置参数执行数据传输，所述第一BWP的配置参数包括第一资源偏移量，第一带宽和第一子载波间隔中的至少一项；
    所述网络设备确定第一随机接入资源和第二配置参数；
    所述网络设备在第一随机接入资源上接收终端设备发送的随机接入请求；
    所述网络设备根据所述随机接入请求和第二配置参数，向所述终端设备发送随机接入响应，所述第二配置参数包括第二资源偏移量，第二带宽和第二子载波间隔中的至少一项。
  13. 如权利要求12所述的方法，其特征在于，所述方法还包括：
    所述网络设备接收所述终端设备根据所述随机接入响应发送的随机接入消息3。
  14. 如权利要求12或13所述的方法，其特征在于，
    所述第一随机接入资源和所述第二配置参数与所述第一BWP相关联；或者；
    所述第一随机接入资源和所述第二配置参数与第二BWP相关联；或者，
    所述第一随机接入资源为小区特定的随机接入资源，所述小区特定的随机接入资源与所述第二配置参数相关联；或者，
    所述第一随机接入资源和所述第二配置参数与小区定义同步信号块SSB相关联。
  15. 如权利要求14所述的方法，其特征在于，所述第二BWP为下述中任一种：
    与所述第一BWP相关联的初始BWP、与第三BWP相关联的初始BWP、初始BWP、小区定义带宽部分BWP和与小区定义SSB相关联的BWP，其中，所述第三BWP为激活所述第一BWP时去激活的BWP。
  16. 如权利要求14或15所述的方法，其特征在于，在所述网络设备确定第一随机接入资源和第二配置参数之前，所述方法还包括：
    所述网络设备向所述终端设备发送无线资源控制RRC重配置消息和/或系统广播消息，所述RRC重配置消息携带所述第一随机接入资源的信息和/或所述第二配置参数的信息，和/或，所述系统广播消息携带所述第一随机接入资源的信息和/或所述第二配置参数的信息。
  17. 如权利要求16所述的方法，其特征在于，所述RRC重配置消息或所述系统广播消息包括所述第二BWP的配置参数，所述第二BWP的配置参数包括所述第二配置参数。
  18. 一种终端设备，其特征在于，包括：
    收发单元，用于根据当前激活的第一带宽部分BWP的配置参数执行数据传输，所述第一BWP的配置参数包括第一资源偏移量，第一带宽和第一子载波间隔中的至少一项；
    处理单元，用于确定执行随机接入的第一随机接入资源和第二配置参数，所述第二配置参数包括第二资源偏移量，第二带宽和第二子载波间隔中的至少一项；
    所述收发单元还用于，在所述第一随机接入资源上向所述网络设备发送所述随机接入请求；
    所述收发单元还用于，根据所述第二配置参数接收随机接入响应，所述随机接入响应是所述网络设备根据所述随机接入请求发送的。
  19. 如权利要求18所述的终端设备，其特征在于，所述收发单元还用于，根据所述随机接入响应向所述网络设备发送随机接入消息3。
  20. 如权利要求18或19所述的终端设备，其特征在于，所述处理单元具体用于：
    根据所述第二配置参数确定第一调度信息，所述第一调度信息用于指示第一资源；
    所述收发单元具体用于，在所述第一资源上接收所述网络设备发送的随机接入响应。
  21. 如权利要求19所述的终端设备，其特征在于，所述处理单元具体用于：
    根据所述第二配置参数解析所述随机接入响应携带的第二调度信息，所述第二调度信息用于指示第二资源；
    所述收发单元具体用于，在所述第二资源上向所述网络设备发送所述随机接入消息3。
  22. 如权利要求18-21中任一项所述的终端设备，其特征在于，
    所述第一随机接入资源和所述第二配置参数与所述第一BWP相关联；或者；
    所述第一随机接入资源和所述第二配置参数与第二BWP相关联；或者，
    所述第一随机接入资源为小区特定的随机接入资源，所述小区特定的随机接入资源与所述第二配置参数相关联；或者，
    所述第一随机接入资源和所述第二配置参数与小区定义同步信号块SSB相关联。
  23. 如权利要求22所述的终端设备，其特征在于，所述第二BWP为下述中的任一种：
    与所述第一BWP相关联的初始BWP、与第三BWP相关联的初始BWP、初始BWP、小区定义带宽部分BWP和与小区定义SSB相关联的BWP，其中，所述第三BWP为激活所述第一BWP时去激活的BWP。
  24. 如权利要求22或23所述的终端设备，其特征在于，
    所述第一随机接入资源的信息和/或所述第二配置参数的信息通过无线资源控制RRC重配置信息携带；和/或
    所述第一随机接入资源的信息和/或所述第二配置参数的信息通过系统广播消息携带。
  25. 如权利要求24所述的终端设备，其特征在于，所述RRC重配置消息或所述系统广播消息包括所述第二BWP的配置参数，所述第二BWP的配置参数包括所述第二配置参数。
  26. 如权利要求22-25中任一项所述的终端设备，其特征在于，所述接收单元还用于：
    接收所述网络设备发送的第一指示信息，所述第一指示信息用于去激活或释放所述第二BWP。
    所述处理根据所述第一指示信息去激活或释放所述第二BWP，且继续维护所述第二BWP的所述第二配置参数。
  27. 如权利要求18-26中任一项所述的终端设备，其特征在于，所述处理单元还用于：
    停止从所述第一BWP接收BWP激活/去激活指示信息，或者停止监听所述第一BWP的下行控制信息，或者去激活所述第一BWP，或者释放所述第一BWP。
  28. 如权利要求18-27中任一项所述的终端设备，其特征在于，
    若所述收发单元接收到去激活所述第一BWP的指示信息，所述处理单元停止所述随机接入过程，或者所述终端设备确定当前的随机接入过程失败。
  29. 一种网络设备，其特征在于，包括：
    收发单元，用于根据当前激活的第一带宽部分BWP的配置参数执行数据传输，所述第一BWP的配置参数包括第一资源偏移量，第一带宽和第一子载波间隔中的至少一项；
    处理单元，用于确定第一随机接入资源和第二配置参数；
    所述收发单元还用于，在第一随机接入资源上接收终端设备发送的随机接入请求；
    所述收发单元还用于，根据所述随机接入请求和第二配置参数，向所述终端设备发送随机接入响应，所述第二配置参数包括第二资源偏移量，第二带宽和第二子载波间隔中的至少一项。
  30. 如权利要求29所述的网络设备，其特征在于，所述收发单元还用于：
    接收所述终端设备根据所述随机接入响应发送的随机接入消息3。
  31. 如权利要求29或30所述的网络设备，其特征在于，
    所述第一随机接入资源和所述第二配置参数与所述第一BWP相关联；或者；
    所述第一随机接入资源和所述第二配置参数与第二BWP相关联；或者，
    所述第一随机接入资源为小区特定的随机接入资源，所述小区特定的随机接入资源与所述第二配置参数相关联；或者，
    所述第一随机接入资源和所述第二配置参数与小区定义同步信号块SSB相关联。
  32. 如权利要求31所述的网络设备，其特征在于，所述第二BWP为下述中任一种：
    与所述第一BWP相关联的初始BWP、与第三BWP相关联的初始BWP、初始BWP、小区定义带宽部分BWP和与小区定义SSB相关联的BWP，其中，所述第三BWP为激活所述第一BWP时去激活的BWP。
  33. 如权利要求31或32所述的网络设备，其特征在于，所述收发单元还用于，
    向所述终端设备接收发送无线资源控制RRC重配置消息和/或系统广播消息，所述RRC重配置消息携带所述第一随机接入资源的信息和/或所述第二配置参数的信息，和/或所述系统广播消息携带所述第一随机接入资源的信息和/或所述第二配置参数的信息。
  34. 如权利要33所述的网络设备，其特征在于，所述RRC重配置消息或所述系统广播消息包括所述第二BWP的配置参数，所述第二BWP的配置参数包括所述第二配置参数。
  35. 一种通信装置，包括存储器、处理器及存储在所述存储器上并可在所述处理器上运行的程序，其特征在于，所述处理器执行所述程序时实现权利要求1至11中任一项所 述的用于随机接入的方法。
  36. 一种通信装置，包括存储器、处理器及存储在所述存储器上并可在所述处理器上运行的程序，其特征在于，所述处理器执行所述程序时实现权利要求12至17中任一项所述的用于随机接入的方法。
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