WO2022027488A1 - Procédé de communication sans fil, dispositif terminal et dispositif de réseau - Google Patents

Procédé de communication sans fil, dispositif terminal et dispositif de réseau Download PDF

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Publication number
WO2022027488A1
WO2022027488A1 PCT/CN2020/107530 CN2020107530W WO2022027488A1 WO 2022027488 A1 WO2022027488 A1 WO 2022027488A1 CN 2020107530 W CN2020107530 W CN 2020107530W WO 2022027488 A1 WO2022027488 A1 WO 2022027488A1
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WIPO (PCT)
Prior art keywords
bwp
downlink
association relationship
ssb
terminal device
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Application number
PCT/CN2020/107530
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English (en)
Chinese (zh)
Inventor
胡奕
李海涛
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Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to PCT/CN2020/107530 priority Critical patent/WO2022027488A1/fr
Priority to CN202080101257.XA priority patent/CN115669133A/zh
Publication of WO2022027488A1 publication Critical patent/WO2022027488A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the embodiments of the present application relate to the field of communications, and in particular, to a wireless communication method, a terminal device, and a network device.
  • the terminal equipment can send and receive signals by mapping the synchronization signal block (Synchronization Signal Block, SSB) beam to the uplink and downlink resources.
  • SSB Synchronization Signal Block
  • Satellites use multiple beams to cover the ground.
  • a satellite can form dozens or even hundreds of beams to cover the ground, and a satellite beam can cover a diameter of dozens of to above. Hundred kilometers of ground area.
  • different frequency points/carriers/frequency bands can be used for adjacent satellite beams during network deployment.
  • One method is to configure different BWPs in the same cell for different satellite beams, so that The movement of the terminal between satellite beams does not need to do cell handover, but only needs to do BWP handover in the cell.
  • One of the satellite beams is only associated with part of the SSB beams in the cell. In this case, how to map SSB beams to uplink and downlink resources, such as paging resources, to ensure consistent understanding between terminal equipment and network equipment is a problem that needs to be solved. problem.
  • the embodiments of the present application provide a wireless communication method, terminal device, and network device, which can map the SSB beam associated with the currently activated BWP to uplink and downlink resources, so as to ensure consistent understanding between the terminal device and the network device, and can Avoid resource waste caused by mapping all SSB beams in a cell to uplink and downlink resources.
  • a method for wireless communication comprising: a terminal device mapping N synchronization signal blocks SSB beams associated with a currently activated first bandwidth part BWP to beams used for signal transmission or reception on the first BWP resource, where N is a positive integer; the terminal device selects a target SSB beam among the N SSB beams; the terminal device performs signal transmission or reception on the resource mapped by the target SSB beam.
  • a method for wireless communication comprising: in the case that bandwidth part BWP switching is required, the terminal device switches the currently activated BWP to the same synchronization signal block SSB beam associated with the BWP Another BWP.
  • a method for wireless communication comprising: a network device sending a downlink BWP configuration and/or an uplink BWP configuration to a terminal device, wherein the downlink BWP configuration is used to configure an association relationship between a downlink BWP and an SSB beam,
  • the uplink BWP configuration is used to configure the association relationship between the uplink BWP and the synchronization signal block SSB beam.
  • a terminal device for executing the method in the first aspect or any possible implementation manner of the first aspect.
  • the terminal device includes a unit for executing the method in the first aspect or any possible implementation manner of the first aspect.
  • a terminal device for executing the method in the second aspect or any possible implementation manner of the second aspect.
  • the terminal device includes a unit for executing the method in the second aspect or any possible implementation manner of the second aspect.
  • a network device for executing the method in the third aspect or any possible implementation manner of the third aspect.
  • the network device includes a unit for executing the method in the third aspect or any possible implementation manner of the third aspect.
  • a terminal device in a seventh aspect, includes: a processor and a memory.
  • the memory is used for storing a computer program
  • the processor is used for calling and running the computer program stored in the memory to execute the method in the above-mentioned first aspect or each implementation manner thereof.
  • a terminal device in an eighth aspect, includes: a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to execute the method in the second aspect or each of its implementations.
  • a network device comprising: a processor and a memory.
  • the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method in the third aspect or each of its implementations.
  • a chip is provided for implementing any one of the above-mentioned first to third aspects or the method in each of its implementations.
  • the chip includes: a processor for calling and running a computer program from a memory, so that a device installed with the chip executes any one of the above-mentioned first to third aspects or implementations thereof method.
  • a computer-readable storage medium for storing a computer program, and the computer program causes a computer to execute the method in any one of the above-mentioned first aspect to the third aspect or each implementation manner thereof.
  • a computer program product comprising computer program instructions, the computer program instructions causing a computer to perform the method in any one of the above-mentioned first to third aspects or the implementations thereof.
  • a thirteenth aspect provides a computer program that, when run on a computer, causes the computer to perform the method of any one of the above-mentioned first to third aspects or the respective implementations thereof.
  • the terminal device can map the SSB beam associated with the currently activated BWP to the resources used for signal transmission or reception, and further transmit or receive the signal based on the mapping relationship, which is beneficial to ensure the terminal device and the network device.
  • the understanding is consistent, and only the SSB beam associated with the currently activated BWP is mapped, not all the SSB beams in the cell, which is beneficial to avoid waste of resources.
  • FIG. 1 is a schematic diagram of an application scenario provided by an embodiment of the present application.
  • FIG. 2 is an example of a beam layout diagram of an NTN network according to an embodiment of the present application.
  • FIG. 3 is a schematic diagram of a wireless communication method provided by an embodiment of the present application.
  • FIG. 4 is an example of a method for wireless communication according to an embodiment of the present application.
  • FIG. 5 is another example of a method for wireless communication according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram of another wireless communication method provided by an embodiment of the present application.
  • FIG. 7 is a schematic diagram of still another wireless communication method provided by an embodiment of the present application.
  • FIG. 8 is a schematic block diagram of a terminal device provided by an embodiment of the present application.
  • FIG. 9 is a schematic block diagram of another terminal device provided by an embodiment of the present application.
  • FIG. 10 is a schematic block diagram of a network device provided by an embodiment of the present application.
  • FIG. 11 is a schematic block diagram of a communication device provided by an embodiment of the present application.
  • FIG. 12 is a schematic block diagram of a chip provided by an embodiment of the present application.
  • FIG. 13 is a schematic block diagram of a communication system provided by an embodiment of the present application.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • CDMA Wideband 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
  • NR New Radio
  • NTN Non-Terrestrial Networks
  • UMTS Universal Mobile Telecommunication System
  • WLAN Wireless Local Area Networks
  • Wireless Fidelity Wireless Fidelity
  • WiFi fifth-generation communication
  • D2D Device to Device
  • M2M Machine to Machine
  • MTC Machine Type Communication
  • V2V Vehicle to Vehicle
  • V2X Vehicle to everything
  • the communication system in this embodiment of the present application may be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, a dual connectivity (Dual Connectivity, DC) scenario, or a standalone (Standalone, SA) distribution. web scene.
  • Carrier Aggregation, CA Carrier Aggregation, CA
  • DC Dual Connectivity
  • SA standalone
  • the communication system in the embodiment of the present application may be applied to an unlicensed spectrum, where the unlicensed spectrum may also be considered as a shared spectrum; or, the communication system in the embodiment of the present application may also be applied to a licensed spectrum, where, Licensed spectrum can also be considered unshared spectrum.
  • the embodiments of the present application describe various embodiments in conjunction with network equipment and terminal equipment, where the terminal equipment may also be referred to as user equipment (User Equipment, UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.
  • user equipment User Equipment, UE
  • access terminal subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.
  • the terminal device can be a station (STATION, ST) in the WLAN, can be a cellular phone, a cordless phone, a Session Initiation Protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, personal digital processing (Personal Digital Assistant, PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, next-generation communication systems such as end devices in NR networks, or future Terminal equipment in the evolved public land mobile network (Public Land Mobile Network, PLMN) network, etc.
  • PLMN Public Land Mobile Network
  • the terminal device can be deployed on land, including indoor or outdoor, handheld, wearable, or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as airplanes, balloons, and satellites) superior).
  • the terminal device may be a mobile phone (Mobile Phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (Virtual Reality, VR) terminal device, and an augmented reality (Augmented Reality, AR) terminal Equipment, wireless terminal equipment in industrial control, wireless terminal equipment in self driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid , wireless terminal equipment in transportation safety, wireless terminal equipment in smart city or wireless terminal equipment in smart home, etc.
  • a mobile phone Mobile Phone
  • a tablet computer Pad
  • a computer with a wireless transceiver function a virtual reality (Virtual Reality, VR) terminal device
  • augmented reality (Augmented Reality, AR) terminal Equipment wireless terminal equipment in industrial control, wireless terminal equipment in self driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid , wireless terminal equipment in transportation safety, wireless terminal equipment in smart city or wireless terminal equipment in smart home, etc.
  • the terminal device may also be a wearable device.
  • Wearable devices can also be called wearable smart devices, which are the general term for the intelligent design of daily wear and the development of wearable devices using wearable technology, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-scale, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, which needs to cooperate with other devices such as smart phones.
  • the network device may be a device for communicating with a mobile device, and the network device may be an access point (Access Point, AP) in WLAN, or a base station (Base Transceiver Station, BTS) in GSM or CDMA , it can also be a base station (NodeB, NB) in WCDMA, it can also be an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or access point, or a vehicle-mounted device, wearable device and NR network
  • BTS Base Transceiver Station
  • NodeB NodeB
  • NB evolved base station
  • LTE Long Term Evolutional Node B
  • eNB evolved Node B
  • eNodeB evolved base station
  • gNB vehicle-mounted device
  • the network equipment (gNB) in the PLMN network in the future evolution or the network equipment in the NTN network, etc.
  • the network device may have a mobile feature, for example, the network device may be a mobile device.
  • the network device may be a satellite or a balloon station.
  • the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a High Elliptical Orbit (HEO) ) satellite etc.
  • the network device may also be a base station set in a location such as land or water.
  • a network device may provide services for a cell, and a terminal device communicates with the network device through transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell, and the cell may be a network device (
  • the cell can belong to the macro base station, or it can belong to the base station corresponding to the small cell (Small cell).
  • Pico cell Femto cell (Femto cell), etc.
  • These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.
  • the communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or referred to as a communication terminal, a terminal).
  • the network device 110 may provide communication coverage for a particular geographic area, and may communicate with terminal devices located within the coverage area.
  • FIG. 1 exemplarily shows one network device and two terminal devices.
  • the communication system 100 may include multiple network devices and the coverage of each network device may include other numbers of terminal devices. This application The embodiment does not limit this.
  • the communication system 100 may further include other network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the present application.
  • network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the present application.
  • a device having a communication function in the network/system may be referred to as a communication device.
  • the communication device may include a network device 110 and a terminal device 120 with a communication function, and the network device 110 and the terminal device 120 may be the specific devices described above, which will not be repeated here.
  • the communication device may also include other devices in the communication system 100, such as other network entities such as a network controller, a mobility management entity, etc., which are not limited in this embodiment of the present application.
  • the "instruction" mentioned in the embodiments of the present application may be a direct instruction, an indirect instruction, or an associated relationship.
  • a indicates B it can indicate that A directly indicates B, for example, B can be obtained through A; it can also indicate that A indicates B indirectly, such as A indicates C, and B can be obtained through C; it can also indicate that there is an association between A and B relation.
  • corresponding may indicate that there is a direct or indirect corresponding relationship between the two, or may indicate that there is an associated relationship between the two, or indicate and be instructed, configure and be instructed configuration, etc.
  • BWP Bandwidth Part
  • the maximum channel bandwidth supported in the NR system can reach 400MHZ (wideband carrier). If the UE keeps working on the wideband carrier, the power consumption of the UE is very large. Adjusting the RF bandwidth of the UE according to the actual throughput of the UE can optimize the power consumption of the UE, which is the motivation for introducing BWP.
  • a terminal in a connected state can only have at most one active downlink BWP and one active uplink BWP at a time.
  • the network can configure up to 4 uplink BWPs and up to 4 downlink BWPs for the terminal in the connected state.
  • FDD Frequency Division Multiplexing
  • the network can configure a connected terminal with 4 upstream BWPs (for example, the BWP indices are 0, 1, 2, and 3, respectively) and 4 downstream BWPs (for example, the BWP indexes are 0, 1, 2, and 3, respectively).
  • the currently activated UL BWP index can be 0, and the currently activated downlink BWP index can be 1; if the downlink control information (Downlink Control Information, DCI) command is used to switch the downlink BWP to another BWP, for example, from the currently activated DL BWP 1 switches to DL BWP 2, while UL BWP can remain unchanged.
  • DCI Downlink Control Information
  • the BWP activated on the serving cell by the terminal in the connected state can be changed by means of BWP handover.
  • the BWP handover methods can be the following four:
  • the network notifies the terminal of the target BWP of handover by sending a PDCCH to the terminal.
  • RRC Radio Resource Control
  • network-controlled BWP handover For example, the network device instructs the terminal to switch the activated downlink BWP to firstActiveDownlinkBWP- The downlink BWP indicated by Id, and/or the activated uplink BWP is switched to the uplink BWP indicated by firstActiveUplinkBWP-Id.
  • Implicit BWP toggle The network may configure a timer (BWP deactivation timer, bwp-InactivityTimer) for each serving cell of the terminal. If the currently activated DL BWP of the terminal is a BWP other than the default (default) BWP and the initial (initial) DL BWP, every time when the terminal receives a PDCCH indicating the uplink or downlink scheduling of the UE on the currently activated BWP, or the terminal After receiving the PDCCH indicating that the UE is scheduled in the currently activated BWP uplink or downlink, the timer bwp-InactivityTimer is started or restarted.
  • BWP deactivation timer bwp-InactivityTimer
  • the terminal When the timer bwp-InactivityTimer times out, the terminal automatically switches to the default DL BWP or the initial DL BWP, where the default DL BWP and the initial DL BWP are configured by the network device, for example, through RRC.
  • RACH Random Access Channel
  • the terminal if the terminal does not configure the RACH opportunity (RACH Occasion, RO) on the currently activated UL BWP, the terminal automatically switches the UL BWP to the initial UL BWP, and at the same time switches the UL BWP to the initial UL BWP.
  • DL BWP switches to initial DL BWP.
  • Terminal equipment in idle state and inactive state can obtain the master information block (Master Information Block, MIB) and system information block (System Information) of the camping cell through the cell-defining synchronization signal block (cell defining SSB, CD-SSB).
  • Block, SIB)1 information indicates the relevant configuration information of the initial BWP (initial BWP) used for initial access, for example, including the relevant configuration information of the initial UL BWP and the initial DL BWP.
  • the network configures random access resources (for example, RACH-ConfigCommon) for the initial access terminal equipment, and the random access resources and synchronization signal blocks (Synchronization Signal Block, SSB) between Correspondence.
  • the network device may also control the selection of random access resources of the terminal device by configuring a reference signal receiving power (Reference Signal Receiving Power, RSRP) threshold (for example, rsrp-ThresholdSSB).
  • RSRP Reference Signal Receiving Power
  • the terminal can select the SSB whose RSRP measurement value meets the above-mentioned RSRP threshold, and further select the corresponding random access resource according to the corresponding relationship between the random access resource and the SSB to send the random access preamble (ie, Msg1), and receive the random access response message (ie Msg2) sent by the network on the selected SSB.
  • RSRP Reference Signal Receiving Power
  • the main function of paging is to enable the network device to page the UE through a paging message when the UE is in the Radio Resource Control (RRC) idle (IDLE) state or the RRC inactive (INACTIVE) state. , or notify the UE of system message changes or earthquake and tsunami/public early warning information (applicable to all RRC states of the UE, including the connected state) through a short message.
  • RRC Radio Resource Control
  • IDLE Radio Resource Control
  • IACTIVE Radio Resource Control
  • the reception of the paging message includes blind detection of the Physical Downlink Control Channel (PDCCH) scrambled by the Paging Radio Network Temporary Identity (P-RNTI), and reception of the PDCCH scheduled by the PDCCH.
  • the paging message is transmitted in the PDSCH (or in other words, the paging message is carried in the PDSCH).
  • the UE can monitor the paging channel discontinuously, that is, adopt the paging discontinuous reception (Discontinuous Reception, DRX) mechanism.
  • DRX paging discontinuous reception
  • the UE only needs to monitor paging during a paging occasion (Paging Occasion, PO) in each DRX cycle (cycle).
  • the terminal device may monitor the PDCCH on the PO on the paging frame (Paging Frame, PF).
  • PF may refer to a radio frame, for example, a fixed 10ms, and the radio frame may contain one or more POs, or the starting positions of one or more POs.
  • PO is composed of S PDCCH monitoring occasions (monitoring occasions), wherein S is the actual number of synchronization signal blocks (Synchronization Signal Block, SSB) broadcast in the management information base (Management Information Base, MIB).
  • S is the actual number of synchronization signal blocks (Synchronization Signal Block, SSB) broadcast in the management information base (Management Information Base, MIB).
  • MIB Management Information Base
  • the UE after knowing the number of PDCCH monitoring occasions in the PF, PO and PO, the UE only needs to know the starting position of the first PDCCH monitoring occasion in the PO to monitor the PDCCH.
  • the starting position may be configured by higher layer signaling, or determined based on PO index.
  • downlink broadcast information such as SSB, remaining system information (Remaining System Information, RMSI), and initial access can also support a beam (Beam) management mechanism.
  • SSB remaining system information
  • RMSI Remaining System Information
  • Beam Beam management mechanism
  • the SSB has multiple transmission opportunities in the time domain period, which may correspond to different beams respectively.
  • the UE has the opportunity to send random access only when the SSB beam scan signal "covers" the UE.
  • the sending time (that is, the RO) of the physical random access channel (Physical Random Access Channel, PRACH) needs to establish a mapping relationship with the sending time (index) of the SSB.
  • the base station determines the beam sent by the downlink random access response (Random Access Response, RAR) according to the resource location of the UE's uplink PRACH.
  • RAR Random Access Response
  • satellites use multiple beams to cover the ground.
  • a satellite can form dozens or even hundreds of beams to cover the ground, and a satellite beam can cover a diameter of Dozens to hundreds of kilometers of ground area.
  • a satellite beam is the smallest unit that a satellite covers the earth's surface, corresponding to different directions. Usually, a satellite covers the earth's surface through hundreds or thousands of satellite beams. These satellite beams can be deployed as different cells or within the same cell.
  • different frequency points/carriers/frequency bands can be used for adjacent satellite beams during network deployment, as shown in Figure 2.
  • An implementation method is to configure different BWPs in the same cell for different satellite beams, so that the terminal equipment does not need to perform cell handover when moving between satellite beams, but only needs to perform intra-cell BWP handover.
  • each satellite beam is only associated with a part of the SSB, or in other words, each BWP is only associated with a part of the SSB.
  • how to perform the mapping of the SSB beam to the paging resource and the RACH resource mapping to avoid the waste of resources is an urgent need to solve problem.
  • FIG. 3 is a schematic flowchart of a method 200 for wireless communication according to an embodiment of the present application.
  • the method 200 may be executed by a terminal device in the communication system shown in FIG. 1 .
  • the method 200 includes the following contents :
  • the terminal device maps the N synchronization signal block SSB beams associated with the currently activated first bandwidth part BWP to resources used for signal transmission or reception on the first BWP, where N is a positive integer;
  • the terminal device selects a target SSB beam from the N SSB beams
  • the terminal device performs signal transmission or reception on the resource mapped by the target SSB beam.
  • the embodiments of the present application may be applied to NTN scenarios, or may also be applied to other scenarios in which multiple BWPs are configured to implement frequency division multiplexing, and the present application is not limited thereto.
  • the SSB beams in this embodiment of the present application may be other reference signal beams, such as channel state information reference signal (Channel State Information Reference Signal, CSI-RS) beams, demodulation reference signal (Demodulation Reference Signal, DMRS) beams, etc.,
  • CSI-RS Channel State Information Reference Signal
  • DMRS Demodulation Reference Signal
  • the reference signal beam is a beam realized by reference signal transmission.
  • the reference signal exists in the form of a beam. Therefore, the reference signal beam can be called a reference signal, that is, an SSB beam. Also known as SSB, the two are interchangeable.
  • the SSB beam is used as an example for description, but the present application is not limited to this.
  • the first BWP currently activated by the terminal device is associated with N SSB beams, and the N SSB beams are part of all SSB beams in the serving cell of the terminal device, or in other words, the N is less than Number of SSB beams broadcast in SIB1.
  • the terminal device can map the N SSB beams to the uplink and downlink resources used for signal transmission or reception on the first BWP, and further determine to use the N SSB beams during subsequent signal transmission. The resource mapped by which SSB beam can be used for signal transmission or reception, thereby avoiding the problem of resource waste caused by mapping all SSB beams in the serving cell to the resources of the first BWP.
  • the resources used for signal transmission or reception include at least one of the following:
  • Physical random access channel PRACH resource Physical random access channel PRACH resource.
  • the terminal device may map the SSB beam associated with the first BWP to the resource of the PDCCH used for scheduling the paging message, and in this case, the first BWP may be the first downlink BWP.
  • the terminal device may map the SSB beam associated with the first BWP to the PRACH resource, and in this case, the first BWP may be the first uplink BWP.
  • the PDCCH used for scheduling the paging message may be referred to as the paging PDCCH, and the PDCCH is the PDCCH scrambled by the P-RNTI.
  • the terminal device may also map the SSB beam associated with the first BWP to other resources used for signal transmission or reception on the first BWP, but the present application is not limited thereto.
  • the specific resource mapping manner is described by taking the mapping of SSB beams to paging resources and the mapping of SSB beams to PRACH resources as examples.
  • Embodiment 1 Mapping of SSB beams to paging resources
  • the first BWP is the first downlink BWP
  • the first downlink BWP is the currently activated downlink BWP
  • the terminal device maps the N SSB beams associated with the first downlink BWP to paging resources on the first downlink BWP.
  • the terminal device maps N SSB beams associated with the first downlink BWP to a first PO on the first downlink BWP, where the first PO corresponds to N Continuous PDCCH monitoring occasions, each of the PDCCH monitoring occasions corresponds to one SSB beam in the N SSB beams.
  • the terminal device assumes that the network device transmits the same paging PDCCH by traversing the N SSB beams associated with the first downlink BWP on the N consecutive PDCCH monitoring occasions.
  • the network device may sequentially traverse the N SSB beams in ascending order of SSB index (index) to send the paging PDCCH.
  • the terminal device may choose to blindly detect the paging PDCCH on all of the N SSB beams. That is, the terminal device may blindly detect the paging PDCCH at the N consecutive PDCCH monitoring occasions in the first PO. Alternatively, the terminal device may also blindly detect the paging PDCCH only on part of the SSB beams. That is, the terminal device can blindly detect the paging PDCCH at the PDCCH monitoring occasions corresponding to the part of the SSB beams in the N consecutive PDCCH monitoring occasions in the first PO.
  • the terminal device may receive a downlink BWP configuration sent by a network device, where the downlink BWP configuration is used to configure the SSB beam associated with the downlink BWP and/or the paging search space of the downlink BWP .
  • the downlink BWP configuration is configured to configure at least one of the following:
  • Multiple downlink BWPs including multiple downlink initial BWPs and/or multiple dedicated downlink BWPs;
  • the first PDCCH monitoring occasion in the PO sequence is used to indicate the first PDCCH monitoring occasion corresponding to each PO in a paging radio frame PF on the first downlink BWP.
  • the configuration parameters in the downlink BWP configuration may be configured through the same message or signaling, or may also be configured through different messages or signaling, which is not limited in this application.
  • the downlink BWP configuration may be configured through system message configuration or RRC dedicated signaling configuration, and the present application is not limited thereto.
  • the association relationship between each downlink BWP and the SSB beam is configured by a first association relationship, wherein the first association relationship is the association relationship between the downlink BWP and the SSB beam.
  • the network device can directly configure the association relationship of the SSB beams of the downlink BWP.
  • the association relationship between each downlink BWP and the SSB beam is configured by a second association relationship and a third association relationship, wherein the second association relationship is the association relationship between the downlink BWP and the satellite beam, and the third association relationship is the satellite beam.
  • the relationship between the beam and the SSB beam is configured by a second association relationship and a third association relationship, wherein the second association relationship is the association relationship between the downlink BWP and the satellite beam, and the third association relationship is the satellite beam.
  • the network device may indirectly configure the association relationship between the downlink BWP and the SSB beam.
  • each downlink BWP may be associated with one satellite beam.
  • One or more SSB beams are associated with each satellite beam or each downlink BWP.
  • the network device may configure a paging search space corresponding to one or more of the downlink BWPs, and for the downlink BWP configured with the paging search space, the terminal device performs the downlink BWP on the downlink BWP. Mapping of associated SSB beams to paging resources.
  • the network may also configure the downlink BWP with the first PDCCH monitoring occasion in a PO sequence (for example, the firstPDCCH-MonitoringOccasionOfPO sequence), where the firstPDCCH-MonitoringOccasionOfPO sequence is used to indicate the first PDCCH monitoring occasion corresponding to each PO in a PF on the downlink BWP.
  • a PO sequence for example, the firstPDCCH-MonitoringOccasionOfPO sequence
  • Embodiment 2 Mapping of SSB beams to PRACH resources
  • the first BWP is the first uplink BWP
  • the first uplink BWP is the currently activated uplink BWP
  • the terminal device maps the N SSB beams associated with the first uplink BWP to the first uplink BWP.
  • the uplink BWP configuration of the terminal device is first described.
  • the terminal device receives the uplink BWP configuration sent by the network device.
  • the uplink BWP configuration is used to configure the association relationship between the uplink BWP and the SSB beam and/or the PRACH resource on the uplink BWP.
  • the uplink BWP configuration is configured to configure at least one of the following:
  • Multiple upstream BWPs including multiple upstream initial BWPs and/or multiple dedicated upstream BWPs;
  • the uplink BWP configuration may be configured through the same message or signaling, or may also be configured through different messages or signaling, which is not limited in this application.
  • the uplink BWP configuration may be configured through system message configuration or RRC dedicated signaling configuration, etc., which the present application is not limited to.
  • Manner 1 The association relationship between each uplink BWP and the SSB beam is configured through a fourth association relationship, where the fourth association relationship is the association relationship between the uplink BWP and the SSB beam.
  • the network device can directly configure the association relationship of the SSB beams of the uplink BWP.
  • the association relationship between each uplink BWP and the SSB beam is configured by a fifth association relationship and a sixth association relationship, wherein the fifth association relationship is an association relationship between an uplink BWP and a satellite beam, and the sixth association relationship The relationship is the relationship between the satellite beam and the SSB beam.
  • the network device may indirectly configure the association relationship between the uplink BWP and the SSB beam.
  • the configuration parameters of the PRACH resource include at least one of the following:
  • a PRACH configuration index (eg prach-ConfigurationIndex), wherein the PRACH configuration index is associated with information on the number of preambles and the time domain resource configuration of the RO;
  • the number of SSB beams included in each RO and the number of SSB beams that can be used to transmit contention-based preamble sequences that is, SSBssb-perRACH-OccasionAndCB-PreamblesPerSSB.
  • the time domain resource configuration of the RO includes at least one of the following:
  • the PRACH configuration period The PRACH configuration period, the subframe number where the PRACH is located, the time slot where the PRACH is located, the symbol where the PRACH is located, and the time length corresponding to each PRACH.
  • the frequency domain resource configuration of the RO includes at least one of the following:
  • the starting position of the frequency domain resources of PRACH for example, msg1-FrequencyStart
  • the frequency division multiplexing coefficient for example, msg1-FDM
  • the terminal device determines a PRACH occasion association period (PRACH occasion association period) on the uplink BWP according to the configuration parameters of the PRACH resource, wherein the PRACH occasion association period indicates that the period starts from radio frame 0 , the time required for mapping all SSBs associated with the uplink BWP to different ROs at least once.
  • PRACH occasion association period indicates that the period starts from radio frame 0 , the time required for mapping all SSBs associated with the uplink BWP to different ROs at least once.
  • the PRACH opportunity association period is an integer multiple of the PRACH configuration period.
  • the terminal device may map the SSB beam associated with the uplink BWP to the RO on the uplink BWP within each PRACH opportunity association period on the uplink BWP.
  • the terminal device maps the N SSB beams associated with the first uplink BWP to the random access channel opportunity RO on the first uplink BWP. Further, the terminal device One SSB beam is selected from the N SSB beams, and random access is initiated on the RO mapped by the SSB beam, for example, a random access preamble is sent.
  • the terminal device maps the N SSB beams associated with the first uplink BWP to the RO on the first uplink BWP at least once . That is, in each PRACH opportunity association period, each SSB beam in the N SSB beams is mapped to at least one RO.
  • the terminal device performs the following four steps to map the N SSB beams associated with the first uplink BWP to ROs on the first uplink BWP:
  • Step a the order of the contention-based preamble index in each RO is incremented
  • Step b when the PRACH frequency division multiplexing is configured, the order of the frequency domain resource index of the frequency division multiplexing RO is incremented;
  • Step c increasing the order of the time domain resource index of the time domain multiplexing RO in the PRACH time slot;
  • Step d the order of PRACH slot indices is incremented.
  • the terminal device sequentially performs the mapping of the SSB beams to the PRACH resources according to the sequence of the RO, the RO, the PRACH time slot, and the PRACH time slot.
  • the terminal device executes the four steps cyclically in sequence, so that the N SSBs associated with the first uplink BWP are mapped to different ROs at least once.
  • the N SSBs associated with the first uplink BWP are mapped to different ROs at least once in the PRACH occasion association period, so the redundant RO is not used to transmit the preamble sequence.
  • the network device can perform the mapping from the SSB beam to the RO in a similar way, then the network device decides to send the random access preamble based on the RO used by the terminal device to send the random access preamble, and the mapping relationship between the SSB beam and the RO.
  • incoming response (RAR) SSB beam incoming response
  • Embodiment 1 and Embodiment 2 The specific execution flow of Embodiment 1 and Embodiment 2 will be described in detail below with reference to FIG. 4 and FIG. 5 .
  • the UE receives the downlink BWP configuration sent by the network device.
  • the network device configures downlink BWP1 associated with SSB beam 1, SSB beam 2 and SSB beam 3, downlink BWP2 associated with SSB beam 4, SSB beam 5 and SSB beam 6, and downlink BWP3 associated with SSB beam 7 and SSB beam 8.
  • the UE determines N consecutive PDCCH monitoring occasions corresponding to a PO on the downlink BWP, where N is the number of SSB beams associated with the downlink BWP.
  • one PO on the downlink BWP1 it may correspond to three consecutive PDCCH monitoring occasions.
  • the UE monitors the PDCCH scrambled by the P-RNTI on the PO of the currently activated downlink BWP.
  • the downlink BWP is associated with N SSB beams, and the UE assumes that for a PO on the downlink BWP, starting from the firstPDCCH-MonitoringOccasionOfPO corresponding to the PO, the network device uses consecutive N PDCCH monitoring opportunities to send the paging PDCCH.
  • the network device may sequentially traverse the N SSB beam directions in order of the SSB index from small to large to send the paging PDCCH.
  • the UE may blindly detect the paging PDCCH for some or all of the N consecutive PDCCH monitoring occasions on one PO on the currently activated downlink BWP.
  • the UE blindly detects the paging PDCCH in all or part of the three consecutive PDCCH monitoring opportunities corresponding to one PO on the downlink BWP1.
  • the UE receives the uplink BWP configuration sent by the network device.
  • the network device configures uplink BWP1 associated with SSB beam 1, SSB beam 2 and SSB beam 3, uplink BWP2 associated with SSB beam 4, SSB beam 5 and SSB beam 6, and uplink BWP3 associated with SSB beam 7 and SSB beam 8.
  • the UE determines a PRACH opportunity association period on the uplink BWP according to the PRACH resource configuration, where the PRACH opportunity association period is an integer multiple of the PRACH configuration period.
  • the UE maps the SSB beam associated with the uplink BWP to the RO on the uplink BWP at each PRACH opportunity associated period on the uplink BWP.
  • FIG. 5 shows the mapping relationship between the associated SSB beams and the RO on the uplink BWP when the activated uplink BWPs are uplink BWP1, uplink BWP2 and uplink BWP3 respectively.
  • the UE may initiate random access on the RO mapped to the SSB beam associated with the currently activated UL BWP. For example, if the uplink BWP1 is the currently activated uplink BWP, and the UE wants to initiate random access on the uplink BWP1, the terminal device selects one SSB among the three SSB beams associated with the uplink BWP1, and the terminal selects Random access is initiated on the RO mapped by the SSB beam.
  • FIG. 6 is a schematic flowchart of a method 300 for wireless communication according to another embodiment of the present application.
  • the method 300 may be executed by a terminal device in the communication system shown in FIG. 1 .
  • the method 300 includes as follows:
  • the terminal device switches the currently activated BWP to another BWP with the same synchronization signal block SSB beam associated with the BWP.
  • BWP handover caused by any possible cause, for example, BWP handover caused by random access described above, or handover caused by timer timeout.
  • the terminal device switches the BWP to the same BWP as the SSB beam associated with the currently activated BWP, so that the terminal device can continue to use these SSB beams in the new Signal transmission on BWP.
  • the need to perform BWP handover includes at least one of the following situations:
  • Case 1 The terminal device needs to initiate random access, but the currently activated uplink BWP is not configured with physical random access channel PRACH resources;
  • the currently activated uplink BWP of the terminal device is configured with PRACH resources, and the current serving cell is a special cell (Spcell), but the currently activated downlink BWP and the currently activated uplink BWP are associated with different SSB beams;
  • Spcell special cell
  • Case 3 The working BWP inactivation timer (ie, bwp-InactivityTimer) associated with the downlink BWP currently activated by the terminal device times out.
  • bwp-InactivityTimer ie, bwp-InactivityTimer
  • the special cell may be, for example, a primary cell (PCell) or a primary and secondary cell (PScell).
  • PCell primary cell
  • PScell primary and secondary cell
  • the currently activated uplink BWP is the first uplink BWP. If the terminal device wants to initiate random access on the first uplink BWP, but the first uplink BWP is not configured with PRACH resources, the terminal device can access the first uplink BWP from the first uplink BWP.
  • the uplink BWP is switched to the first initial uplink BWP, wherein the first initial uplink BWP is the same as the SSB beam associated with the first uplink BWP.
  • the terminal device may also switch the currently activated first downlink BWP to the first downlink initial BWP, wherein the first downlink initial BWP It is the same as the SSB beam associated with the first downlink BWP.
  • the first uplink BWP is a currently activated uplink BWP on an uplink carrier of the serving cell of the terminal device.
  • the currently activated uplink BWP is the first uplink BWP, the first uplink BWP is configured with PRACH resources, and the current serving cell is a special cell, but the currently activated first downlink BWP is associated with the SSB beam of the first uplink BWP
  • the terminal device switches the currently activated first downlink BWP to a second downlink BWP, where the second downlink BWP and the first uplink BWP are associated with the same SSB beam. That is, it is ensured that the SSB beams associated with the uplink BWP and the downlink BWP are the same.
  • the BWP IDs of the uplink BWP and the downlink BWP associated with the same SSB beam may be the same, for example, the BWP IDs of the first downlink BWP and the first uplink BWP are different, and the The BWP ID of the second downlink BWP is the same as that of the first uplink BWP. It can be considered that the uplink BWP and the downlink BWP with the same BWP ID are a pair of BWPs, and when the BWP is configured, the associated SSB beam can be configured for the pair of BWPs.
  • the BWP IDs of the uplink BWP and the downlink BWP associated with the same SSB beam may also be different, that is, the uplink BWP and the downlink BWP independently configure the associated SSB beam.
  • the terminal device switches from the first downlink BWP to the one associated with the first downlink BWP The default downlink BWP or initial downlink BWP of the same SSB beam.
  • the terminal device switches from the first downlink BWP to the default downlink BWP.
  • the terminal device switches from the first downlink BWP to the first downlink BWP
  • the SSB beam associated with the downlink BWP is the same initial downlink BWP.
  • the first downlink BWP is not a default downlink BWP, and the first downlink BWP is not a dormant (dormant) downlink BWP.
  • the terminal device may execute the above example 1 when the first downlink BWP is not the default downlink BWP, the first downlink BWP is not a dormant downlink BWP, and the bwp-InactivityTimer associated with the first downlink BWP times out and the operation of Example 2.
  • the method 300 further includes:
  • the terminal device receives the uplink BWP configuration and/or the downlink BWP configuration sent by the network device.
  • the downlink BWP configuration is used to configure multiple downlink BWPs, including at least one of multiple downlink initial BWPs, at least one default downlink BWP, and multiple dedicated downlink BWPs, and one of the multiple downlink BWPs.
  • the uplink BWP configuration is configured to configure multiple uplink BWPs, including multiple uplink initial BWPs and/or multiple dedicated downlink uplink BWPs, and each uplink BWP and SSB beam in the multiple uplink BWPs. connection relation.
  • uplink BWP configuration and/or the downlink BWP configuration, refer to the relevant descriptions in the method 200 , which are not repeated here for brevity.
  • the network device may further configure the duration of the bwp-InactivityTimer for the terminal device.
  • the wireless communication method according to the embodiment of the present application is described in detail from the perspective of the terminal device, and the wireless communication according to another embodiment of the present application is described in detail below with reference to Fig. 7 from the perspective of the network device Methods. It should be understood that the description on the side of the network device corresponds to the description on the side of the terminal device, and similar descriptions can be referred to above, which are not repeated here to avoid repetition.
  • FIG. 7 is a schematic flowchart of a method 300 for wireless communication according to another embodiment of the present application.
  • the method 300 may be executed by a network device in the communication system shown in FIG. 1 .
  • the method 400 includes: as follows:
  • the network device sends the downlink BWP configuration and/or the uplink BWP configuration to the terminal device, where the downlink BWP configuration is used to configure the association relationship between the downlink BWP and the SSB beam, and the uplink BWP configuration is used to configure the uplink BWP and synchronization signals Association of block SSB beams.
  • the downlink BWP configuration is configured to configure at least one of the following:
  • Multiple downlink BWPs including multiple downlink initial BWPs and/or multiple dedicated downlink BWPs;
  • the first PDCCH monitoring occasion in the PO sequence is used to indicate the first PDCCH monitoring occasion corresponding to each PO in a paging radio frame PF on the first downlink BWP.
  • the association relationship between each downlink BWP and the SSB beam is configured by a first association relationship, wherein the first association relationship is the association relationship between the downlink BWP and the SSB beam;
  • the association relationship between each downlink BWP and the SSB beam is configured by a second association relationship and a third association relationship, wherein the second association relationship is the association relationship between the downlink BWP and the satellite beam, and the third association relationship is the satellite beam and the satellite beam. Association of SSB beams.
  • the uplink BWP configuration is configured to configure at least one of the following:
  • Multiple upstream BWPs including multiple upstream initial BWPs and/or multiple dedicated upstream BWPs;
  • the association relationship between each uplink BWP and the SSB beam is configured by a fourth association relationship, wherein the fourth association relationship is the association relationship between the uplink BWP and the SSB beam;
  • the association relationship between each uplink BWP and the SSB beam is configured by the fifth association relationship and the sixth association relationship, wherein the fifth association relationship is the association relationship between the uplink BWP and the satellite beam, and the sixth association relationship is the satellite beam.
  • the relationship between the beam and the SSB beam is configured by the fifth association relationship and the sixth association relationship, wherein the fifth association relationship is the association relationship between the uplink BWP and the satellite beam, and the sixth association relationship is the satellite beam.
  • the method 400 further includes:
  • the network device maps the N SSB beams associated with the first downlink BWP currently activated by the terminal device to the first physical downlink control channel opportunity PO of the first downlink BWP, where the first PO corresponds to N Continuous physical downlink control channel PDCCH monitoring occasions, each of the PDCCH monitoring occasions corresponds to one SSB beam in the N SSB beams;
  • the network device sends the PDCCH of the same scheduling paging message at the N consecutive PDCCH monitoring occasions.
  • the method 400 further includes:
  • the network device maps the N SSB beams associated with the first uplink BWP currently activated by the terminal device to the random access channel opportunity RO on the first uplink BWP, wherein the first uplink BWP is configured with physical random access.
  • the RO of the network device on the first BWP receives the preamble sequence sent by the terminal device.
  • the network device maps the N SSB beams associated with the first uplink BWP currently activated by the terminal device to the random access channel opportunity RO on the first uplink BWP, including:
  • the network device sequentially maps the N SSB beams associated with the first uplink BWP to ROs on the first uplink BWP according to the following four steps:
  • the order of the frequency domain resource index of the frequency division multiplexing RO is incremented
  • the order of the PRACH slot index is incremented.
  • the network device may also perform the mapping from the SSB beam to the paging resource or PRACH resource in a manner similar to that of the terminal device.
  • the network device may also perform the mapping from the SSB beam to the paging resource or PRACH resource in a manner similar to that of the terminal device.
  • FIG. 8 shows a schematic block diagram of a terminal device 500 according to an embodiment of the present application.
  • the terminal device 500 includes:
  • the processing unit 510 maps the N synchronization signal blocks SSB beams associated with the currently activated first bandwidth part BWP to resources used for signal transmission or reception on the first BWP, where N is a positive integer; and Select the target SSB beam from the N SSB beams;
  • a communication unit 520 configured to send or receive signals on the resource mapped by the target SSB beam.
  • the resources used for signal transmission or reception include at least one of the following:
  • Physical random access channel PRACH resource Physical random access channel PRACH resource.
  • the first BWP includes a first downlink BWP
  • the processing unit 510 is specifically configured to:
  • each PDCCH monitoring occasion corresponds to one SSB beam among the N SSB beams.
  • the communication unit 520 is specifically configured to:
  • the PDCCH of the scheduling paging message is blindly detected on some of the N consecutive PDCCH monitoring occasions.
  • the terminal device assumes that the network device traverses the N SSB beams associated with the first downlink BWP on the N consecutive PDCCH monitoring occasions to send the same scheduling paging PDCCH of the message.
  • the communication unit 520 is further configured to:
  • the downlink BWP configuration is configured to configure at least one of the following:
  • Multiple downlink BWPs including multiple downlink initial BWPs and/or multiple dedicated downlink BWPs;
  • the first PDCCH monitoring occasion in the PO sequence is used to indicate the first PDCCH monitoring occasion corresponding to each PO in a paging radio frame PF on the first downlink BWP.
  • the association relationship between each downlink BWP and the SSB beam is configured by a first association relationship, wherein the first association relationship is the association relationship between the downlink BWP and the SSB beam;
  • the association relationship between each downlink BWP and the SSB beam is configured by a second association relationship and a third association relationship, wherein the second association relationship is the association relationship between the downlink BWP and the satellite beam, and the third association relationship is the satellite beam.
  • the relationship between the beam and the SSB beam is configured by a second association relationship and a third association relationship, wherein the second association relationship is the association relationship between the downlink BWP and the satellite beam, and the third association relationship is the satellite beam.
  • the first BWP includes a first uplink BWP
  • the processing unit 510 is specifically configured to:
  • the N SSB beams associated with the first uplink BWP are mapped to the random access channel opportunity RO on the first uplink BWP, where PRACH resources are configured on the first uplink BWP.
  • the communication unit 520 is specifically configured to: initiate random access on the RO mapped by the target SSB beam.
  • the communication unit 520 is further configured to: receive the uplink BWP configuration sent by the network device.
  • the uplink BWP configuration is configured to configure at least one of the following:
  • Multiple upstream BWPs including multiple upstream initial BWPs and/or multiple dedicated upstream BWPs;
  • the association relationship between each uplink BWP and the SSB beam is configured by a fourth association relationship, wherein the fourth association relationship is the association relationship between the uplink BWP and the SSB beam;
  • the association relationship between each uplink BWP and the SSB beam is configured by the fifth association relationship and the sixth association relationship, wherein the fifth association relationship is the association relationship between the uplink BWP and the satellite beam, and the sixth association relationship is the satellite beam.
  • the relationship between the beam and the SSB beam is configured by the fifth association relationship and the sixth association relationship, wherein the fifth association relationship is the association relationship between the uplink BWP and the satellite beam, and the sixth association relationship is the satellite beam.
  • the configuration parameters of the PRACH resources include at least one of the following:
  • PRACH configuration index wherein, the PRACH configuration index is associated with the number information of the preamble sequence and the time domain resource configuration of the RO;
  • the number of SSB beams included in each RO and the number of SSB beams that can be used to transmit contention-based preambles are referred to.
  • the time domain resource configuration of the RO includes at least one of the following:
  • the PRACH configuration period The PRACH configuration period, the subframe number where the PRACH is located, the time slot where the PRACH is located, the symbol where the PRACH is located, and the time length corresponding to each PRACH.
  • the frequency domain resource configuration of the RO includes at least one of the following:
  • the starting position and frequency division multiplexing coefficient of the frequency domain resources of PRACH are the starting position and frequency division multiplexing coefficient of the frequency domain resources of PRACH.
  • the processing unit 510 is further configured to: in each PRACH opportunity association period on the first uplink BWP, the terminal device associates all the first uplink BWPs at least once.
  • the N SSB beams are mapped to the RO on the first uplink BWP, wherein the PRACH occasion association period is an integer multiple of the PRACH configuration period.
  • the processing unit 510 is further configured to:
  • the order of the frequency domain resource index of the frequency division multiplexing RO is incremented
  • the order of the PRACH slot index is incremented.
  • the processing unit 510 is further configured to: within the PRACH opportunity association period, sequentially and cyclically execute the four steps at least once to associate the first uplink BWP with the N SSBs are mapped to different ROs.
  • the PRACH opportunity association period also There are redundant ROs that are not used to transmit preamble sequences.
  • the above-mentioned communication unit may be a communication interface or a transceiver, or an input/output interface of a communication chip or a system-on-chip.
  • the aforementioned processing unit may be one or more processors.
  • terminal device 500 may correspond to the terminal device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the terminal device 500 are respectively for realizing the method shown in FIG. 3 .
  • the corresponding process of the terminal device in 200 is not repeated here for brevity.
  • FIG. 9 is a schematic block diagram of a terminal device according to an embodiment of the present application.
  • the terminal device 600 of FIG. 9 includes:
  • the processing unit 610 is configured to switch the currently activated BWP to another BWP that is the same as the synchronization signal block SSB beam associated with the BWP when the bandwidth part BWP switching is required.
  • the need to perform BWP handover includes at least one of the following situations:
  • the terminal device needs to initiate random access, but the currently activated uplink BWP is not configured with physical random access channel PRACH resources;
  • the currently activated uplink BWP of the terminal device is configured with PRACH resources, and the current serving cell is a special cell, but the currently activated downlink BWP and the currently activated uplink BWP are associated with different SSB beams;
  • the deactivation timer associated with the downlink BWP currently activated by the terminal device expires.
  • the processing unit 610 is specifically configured to:
  • the terminal device needs to initiate random access, but the currently activated first uplink BWP is not configured with PRACH resources, it switches from the first uplink BWP to the first initial uplink BWP, where the first initial uplink BWP is the same as the first uplink BWP.
  • the SSB beams associated with the first uplink BWP are the same.
  • the processing unit 610 is further configured to:
  • the currently activated first downlink BWP is switched to the first downlink initial BWP, wherein the first downlink initial BWP and the SSB beam associated with the first downlink BWP are the same.
  • the processing unit 610 is specifically configured to:
  • the current activation is switched to a second downlink BWP, wherein the SSB beam associated with the second downlink BWP and the first uplink BWP is the same.
  • the BWP IDs of the first downlink BWP and the first uplink BWP are different, and the BWP IDs of the second downlink BWP and the first uplink BWP are the same.
  • the processing unit 610 is specifically configured to:
  • the deactivation timer associated with the first downlink BWP currently activated by the terminal device expires, switch from the first downlink BWP to the default downlink BWP that is the same as the SSB beam associated with the first downlink BWP or Initial downlink BWP.
  • the processing unit 610 is specifically configured to:
  • the terminal device is configured with the same default downlink BWP as the SSB beam associated with the first downlink BWP, switch from the first downlink BWP to the default downlink BWP; or
  • the terminal device If the terminal device is not configured with the same default downlink BWP as the SSB beam associated with the first downlink BWP, switch from the first downlink BWP to the same SSB beam associated with the first downlink BWP The initial downlink BWP.
  • the first downlink BWP is not a default downlink BWP, and the first downlink BWP is not a dormant downlink BWP.
  • the terminal device 600 further includes:
  • a communication unit configured to receive the uplink BWP configuration and/or the downlink BWP configuration sent by the network device.
  • the downlink BWP configuration is configured to configure at least one of the following:
  • Multiple downlink BWPs including at least one of multiple downlink initial BWPs, at least one default downlink BWP, and multiple dedicated downlink BWPs;
  • the association relationship between each downlink BWP and the SSB beam is configured by a first association relationship, wherein the first association relationship is the association relationship between the downlink BWP and the SSB beam;
  • the association relationship between each downlink BWP and the SSB beam is configured by a second association relationship and a third association relationship, wherein the second association relationship is the association relationship between the downlink BWP and the satellite beam, and the third association relationship is the satellite beam.
  • the relationship between the beam and the SSB beam is configured by a second association relationship and a third association relationship, wherein the second association relationship is the association relationship between the downlink BWP and the satellite beam, and the third association relationship is the satellite beam.
  • the uplink BWP configuration is configured to configure at least one of the following:
  • Multiple upstream BWPs including multiple upstream initial BWPs and/or multiple dedicated downstream upstream BWPs;
  • the association relationship between each uplink BWP and the SSB beam is configured by a fourth association relationship, wherein the fourth association relationship is the association relationship between the uplink BWP and the SSB beam;
  • the association relationship between each uplink BWP and the SSB beam is configured by the fifth association relationship and the sixth association relationship, wherein the fifth association relationship is the association relationship between the uplink BWP and the satellite beam, and the sixth association relationship is the satellite beam.
  • the relationship between the beam and the SSB beam is configured by the fifth association relationship and the sixth association relationship, wherein the fifth association relationship is the association relationship between the uplink BWP and the satellite beam, and the sixth association relationship is the satellite beam.
  • the above-mentioned communication unit may be a communication interface or a transceiver, or an input/output interface of a communication chip or a system-on-chip.
  • the aforementioned processing unit may be one or more processors.
  • terminal device 600 may correspond to the terminal device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the terminal device 600 are respectively for realizing the method shown in FIG. 6 .
  • the corresponding process of the terminal device in 300 is not repeated here for brevity.
  • FIG. 10 is a schematic block diagram of a network device according to an embodiment of the present application.
  • the network device 700 of FIG. 10 includes:
  • a communication unit 710 configured to send a downlink BWP configuration and/or an uplink BWP configuration to the terminal device, wherein the downlink BWP configuration is used to configure the association relationship between the downlink BWP and the SSB beam, and the uplink BWP configuration is used to configure the uplink BWP and The correlation of the synchronization signal block SSB beam.
  • the downlink BWP configuration is configured to configure at least one of the following:
  • Multiple downlink BWPs including multiple downlink initial BWPs and/or multiple dedicated downlink BWPs;
  • the first PDCCH monitoring occasion in the PO sequence is used to indicate the first PDCCH monitoring occasion corresponding to each PO in a paging radio frame PF on the first downlink BWP.
  • the association relationship between each downlink BWP and the SSB beam is configured by a first association relationship, wherein the first association relationship is the association relationship between the downlink BWP and the SSB beam;
  • the association relationship between each downlink BWP and the SSB beam is configured by a second association relationship and a third association relationship, wherein the second association relationship is the association relationship between the downlink BWP and the satellite beam, and the third association relationship is the satellite beam and the satellite beam. Association of SSB beams.
  • the uplink BWP configuration is configured to configure at least one of the following:
  • Multiple upstream BWPs including multiple upstream initial BWPs and/or multiple dedicated upstream BWPs;
  • the association relationship between each uplink BWP and the SSB beam is configured by a fourth association relationship, wherein the fourth association relationship is the association relationship between the uplink BWP and the SSB beam;
  • the association relationship between each uplink BWP and the SSB beam is configured by the fifth association relationship and the sixth association relationship, wherein the fifth association relationship is the association relationship between the uplink BWP and the satellite beam, and the sixth association relationship is the satellite beam.
  • the relationship between the beam and the SSB beam is configured by the fifth association relationship and the sixth association relationship, wherein the fifth association relationship is the association relationship between the uplink BWP and the satellite beam, and the sixth association relationship is the satellite beam.
  • the network device 700 further includes:
  • a processing unit configured to map the N SSB beams associated with the first downlink BWP currently activated by the terminal device to the first physical downlink control channel opportunity PO of the first downlink BWP, wherein the first PO corresponds to N continuous physical downlink control channel PDCCH monitoring occasions, each of the PDCCH monitoring occasions corresponds to one SSB beam in the N SSB beams;
  • the communication unit 710 is further configured to: send the PDCCH of the same scheduling paging message at the N consecutive PDCCH monitoring occasions.
  • the network device 700 further includes:
  • a processing unit configured to map the N SSB beams associated with the first uplink BWP currently activated by the terminal device to the random access channel opportunity RO on the first uplink BWP, wherein the first uplink BWP is configured with a physical random access channel PRACH resources;
  • the communication unit 710 is further configured to: receive the preamble sequence sent by the terminal device at the RO on the first BWP.
  • the processing unit is specifically configured to:
  • the N SSB beams associated with the first uplink BWP are mapped to the RO on the first uplink BWP according to the following four steps:
  • the order of the frequency domain resource index of the frequency division multiplexing RO is incremented
  • the order of the PRACH slot index is incremented.
  • the above-mentioned communication unit may be a communication interface or a transceiver, or an input/output interface of a communication chip or a system-on-chip.
  • the aforementioned processing unit may be one or more processors.
  • the network device 700 may correspond to the network device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the network device 700 are respectively for realizing the method shown in FIG. 7 .
  • the corresponding flow of the network device in 400 is not repeated here for brevity.
  • FIG. 11 is a schematic structural diagram of a communication device 800 provided by an embodiment of the present application.
  • the communication device 800 shown in FIG. 11 includes a processor 810, and the processor 810 can call and run a computer program from a memory, so as to implement the method in the embodiment of the present application.
  • the communication device 800 may further include a memory 820 .
  • the processor 810 may call and run a computer program from the memory 820 to implement the methods in the embodiments of the present application.
  • the memory 820 may be a separate device independent of the processor 810 , or may be integrated in the processor 810 .
  • the communication device 800 may further include a transceiver 830, and the processor 810 may control the transceiver 830 to communicate with other devices, specifically, may send information or data to other devices, or receive other Information or data sent by a device.
  • the transceiver 830 may include a transmitter and a receiver.
  • the transceiver 830 may further include antennas, and the number of the antennas may be one or more.
  • the communication device 800 may specifically be the network device in this embodiment of the present application, and the communication device 800 may implement the corresponding processes implemented by the network device in each method in the embodiment of the present application. For brevity, details are not repeated here. .
  • the communication device 800 may specifically be the mobile terminal/terminal device in the embodiments of the present application, and the communication device 800 may implement the corresponding processes implemented by the mobile terminal/terminal device in each method in the embodiments of the present application. , and will not be repeated here.
  • FIG. 12 is a schematic structural diagram of a chip according to an embodiment of the present application.
  • the chip 900 shown in FIG. 12 includes a processor 910, and the processor 910 can call and run a computer program from a memory, so as to implement the method in the embodiment of the present application.
  • the chip 900 may further include a memory 920 .
  • the processor 910 may call and run a computer program from the memory 920 to implement the methods in the embodiments of the present application.
  • the memory 920 may be a separate device independent of the processor 910 , or may be integrated in the processor 910 .
  • the chip 900 may further include an input interface 930 .
  • the processor 910 may control the input interface 930 to communicate with other devices or chips, and specifically, may acquire information or data sent by other devices or chips.
  • the chip 900 may further include an output interface 940 .
  • the processor 910 may control the output interface 940 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.
  • the chip can be applied to the network device in the embodiment of the present application, and the chip can implement the corresponding processes implemented by the network device in each method of the embodiment of the present application, which is not repeated here for brevity.
  • the chip can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiments of the present application.
  • the chip can implement the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiments of the present application.
  • the chip can implement the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiments of the present application.
  • the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip, a system-on-chip, or a system-on-a-chip, or the like.
  • FIG. 13 is a schematic block diagram of a communication system 1000 provided by an embodiment of the present application. As shown in FIG. 13 , the communication system 1000 includes a terminal device 1010 and a network device 1020 .
  • the terminal device 1010 can be used to implement the corresponding functions implemented by the terminal device in the above method
  • the network device 1020 can be used to implement the corresponding functions implemented by the network device in the above method. For brevity, details are not repeated here. .
  • the processor in this embodiment of the present application may be an integrated circuit chip, which has a signal processing capability.
  • each step of the above method embodiments may be completed by a hardware integrated logic circuit in a processor or an instruction in the form of software.
  • the above-mentioned processor can be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other available Programming logic devices, discrete gate or transistor logic devices, discrete hardware components.
  • DSP Digital Signal Processor
  • ASIC Application Specific Integrated Circuit
  • FPGA Field Programmable Gate Array
  • a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the steps of the method disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor.
  • the software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art.
  • the storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.
  • the memory in this embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically programmable read-only memory (Erasable PROM, EPROM). Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • Volatile memory may be Random Access Memory (RAM), which acts as an external cache.
  • RAM Static RAM
  • DRAM Dynamic RAM
  • SDRAM Synchronous DRAM
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Rate SDRAM DDR SDRAM
  • enhanced SDRAM ESDRAM
  • synchronous link dynamic random access memory Synchlink DRAM, SLDRAM
  • Direct Rambus RAM Direct Rambus RAM
  • the memory in the embodiment of the present application may also be a static random access memory (static RAM, SRAM), a dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and so on. That is, the memory in the embodiments of the present application is intended to include but not limited to these and any other suitable types of memory.
  • Embodiments of the present application further provide a computer-readable storage medium for storing a computer program.
  • the computer-readable storage medium can be applied to the network device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application.
  • the computer program enables the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application.
  • the computer-readable storage medium can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiments of the present application. , and are not repeated here for brevity.
  • Embodiments of the present application also provide a computer program product, including computer program instructions.
  • the computer program product can be applied to the network device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the network device in each method of the embodiments of the present application. Repeat.
  • the computer program product can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiments of the present application, For brevity, details are not repeated here.
  • the embodiments of the present application also provide a computer program.
  • the computer program can be applied to the network device in the embodiments of the present application.
  • the computer program When the computer program is run on the computer, it causes the computer to execute the corresponding processes implemented by the network device in each method of the embodiments of the present application. For the sake of brevity. , and will not be repeated here.
  • the computer program may be applied to the mobile terminal/terminal device in the embodiments of the present application, and when the computer program is run on the computer, the mobile terminal/terminal device implements the various methods of the computer program in the embodiments of the present application.
  • the corresponding process for the sake of brevity, will not be repeated here.
  • the disclosed system, apparatus and method may be implemented in other manners.
  • the apparatus embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and 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 in this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium.
  • the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution, and the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes .

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé de communication sans fil, un dispositif terminal et un dispositif de réseau. Le procédé comprend les étapes suivantes : un dispositif terminal mappe N faisceaux de blocs de signal de synchronisation (SSB) associés à une première partie de bande passante (BWP) actuellement activée avec des ressources, qui sont utilisées pour la transmission ou la réception de signaux, sur la première BWP, N étant un nombre entier positif ; le dispositif terminal sélectionne un faisceau SSB cible parmi les N faisceaux SSB ; et le dispositif terminal effectue une transmission ou une réception de signaux sur les ressources avec lesquelles le faisceau SSB cible est mappé.
PCT/CN2020/107530 2020-08-06 2020-08-06 Procédé de communication sans fil, dispositif terminal et dispositif de réseau WO2022027488A1 (fr)

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CN202080101257.XA CN115669133A (zh) 2020-08-06 2020-08-06 无线通信的方法、终端设备和网络设备

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