WO2020232566A1 - Bwp切换方法、装置及存储介质 - Google Patents

Bwp切换方法、装置及存储介质 Download PDF

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Publication number
WO2020232566A1
WO2020232566A1 PCT/CN2019/087358 CN2019087358W WO2020232566A1 WO 2020232566 A1 WO2020232566 A1 WO 2020232566A1 CN 2019087358 W CN2019087358 W CN 2019087358W WO 2020232566 A1 WO2020232566 A1 WO 2020232566A1
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WO
WIPO (PCT)
Prior art keywords
trp
terminal
bwp
main
information
Prior art date
Application number
PCT/CN2019/087358
Other languages
English (en)
French (fr)
Inventor
李明菊
Original Assignee
北京小米移动软件有限公司
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.)
Filing date
Publication date
Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to CN201980000853.6A priority Critical patent/CN110291814B/zh
Priority to PCT/CN2019/087358 priority patent/WO2020232566A1/zh
Priority to US17/611,893 priority patent/US20220240250A1/en
Publication of WO2020232566A1 publication Critical patent/WO2020232566A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453Resources in frequency domain, e.g. a carrier in FDMA
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0003Two-dimensional division
    • H04L5/0005Time-frequency
    • H04L5/0007Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0014Three-dimensional division
    • H04L5/0023Time-frequency-space
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0091Signaling for the administration of the divided path
    • H04L5/0096Indication of changes in allocation
    • H04L5/0098Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signaling, i.e. of overhead other than pilot signals

Definitions

  • the embodiments of the present disclosure relate to the field of communication technologies, and in particular, to a BWP switching method, device, and storage medium.
  • the base station can configure multiple BWPs (Bandwidth Part) for the terminal, some of which have a wider bandwidth and some have a narrower bandwidth.
  • the terminal can only have one active (active) BWP, and the terminal can only receive or send data on the active BWP. If the terminal needs to transmit more data, the base station can instruct the terminal to switch to a BWP with a wider bandwidth; if the terminal needs to transmit less data, the base station can instruct the terminal to switch to a BWP with a narrower bandwidth.
  • the base station can send downlink data to the terminal through multiple TRP (Transmitter Receiver Points) antenna panels (panels).
  • the terminal can also receive data sent by the base station through multiple panels, or Send uplink data to the base station through multiple panels.
  • TRP Transmitter Receiver Points
  • the terminal can also receive data sent by the base station through multiple panels, or Send uplink data to the base station through multiple panels.
  • each TRP individually configures PDCCH (Physical Downlink Control Channel) resources for the terminal, and schedules their respective PDSCH (Physical Downlink Control Channel) resources.
  • PDCCH Physical Downlink Control Channel
  • PDSCH Physical Downlink Control Channel
  • multiple TRPs can only communicate with the same terminal on the same active BWP, and the terminal cannot determine which TRP indicates the BWP to perform BWP switching at this time.
  • the embodiments of the present disclosure provide a BWP switching method, device and storage medium.
  • the technical solution is as follows:
  • a BWP handover method including:
  • the base station sends TRP configuration information, where the TRP configuration information is used to indicate a main TRP configured by the base station, where the main TRP is one TRP among n TRPs configured by the base station, and the n is an integer greater than 1;
  • the base station sends BWP handover information through the main TRP, where the BWP handover information is used to indicate handover to the target BWP.
  • the TRP configuration information includes identification information of each TRP
  • the TRP with the smallest identification information is the primary TRP, or the TRP with the largest identification information is the primary TRP.
  • the TRP configuration information includes the CORESET (Control Resource Set, control resource set) number and/or CORESET set number of each TRP;
  • the TRP with the smallest CORESET number and/or CORESET set number is the main TRP, or the TRP with the largest CORESET number and/or CORESET set number is the main TRP.
  • the TRP configuration information is sent to the terminal through RRC (Radio Resource Control, radio resource control) signaling and/or MAC (Medium Access Control, medium access control) signaling.
  • RRC Radio Resource Control, radio resource control
  • MAC Medium Access Control, medium access control
  • the main TRP is further configured to send a BWP switching notification to other TRPs among the n TRPs except the main TRP after sending the BWP switching information, and the BWP switching notification is used to send The other TRP notifies the terminal that it has switched to the target BWP;
  • the other TRP is used to allocate resources for the terminal on the target BWP.
  • a BWP handover method including:
  • the terminal receives TRP configuration information
  • the terminal determines a primary TRP according to the TRP configuration information, where the primary TRP is one TRP among n TRPs configured for the terminal, and the n is an integer greater than 1.
  • BWP switching information sent by the main TRP, where the BWP switching information is used to instruct the terminal to switch to a target BWP;
  • the terminal switches to the target BWP according to the BWP switching information.
  • the TRP configuration information includes identification information of each TRP
  • the terminal determining the main TRP according to the TRP configuration information includes:
  • the terminal determines the TRP with the smallest identification information as the primary TRP, or the terminal determines the TRP with the largest identification information as the primary TRP.
  • the terminal When switching to the target BWP, the terminal starts a timer
  • the TRP with the smallest identification information is the primary TRP, or the TRP with the largest identification information is the primary TRP.
  • the TRP configuration information includes the CORESET number and/or CORESET set number of each TRP;
  • the other TRP is used to allocate resources for the terminal on the target BWP.
  • the configuration information receiving module is configured to receive TRP configuration information
  • a handover information receiving module configured to receive BWP handover information sent by the main TRP, where the BWP handover information is used to instruct the terminal to switch to a target BWP;
  • the BWP switching module is configured to switch to the target BWP according to the BWP switching information.
  • the primary TRP determining module is configured to determine the TRP with the smallest identification information as the primary TRP, or determine the TRP with the largest identification information as the primary TRP.
  • the TRP configuration information includes the CORESET number and/or CORESET set number of each TRP;
  • the timer starting module is configured to start the timer when switching to the target BWP;
  • the communication module is configured to maintain communication with the main TRP after the timer expires, and communicate with the other TRPs according to the resources allocated in the PDCCH information sent by other TRPs in the n TRPs .
  • the value of the timer is written into the chip of the terminal in advance, and/or is configured to the terminal by the base station.
  • a BWP handover device applied to a base station includes:
  • a memory for storing executable instructions of the processor
  • the processor is configured to:
  • TRP configuration information is used to indicate a primary TRP configured by the base station, where the primary TRP is one TRP among n TRPs configured by the base station, and the n is an integer greater than 1;
  • the BWP switching information is sent through the main TRP, and the BWP switching information is used to indicate switching to the target BWP.
  • a BWP switching device which is applied to a terminal, and the device includes:
  • a non-transitory computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, the steps of the method described in the first aspect are implemented, Or implement the steps of the method described in the second aspect.
  • the base station sends TRP configuration information to the terminal, so that the terminal can determine the main TRP according to the TRP configuration information. Furthermore, the base station sends BWP switching information to the terminal through the main TRP to instruct the terminal to switch the BWP to the target BWP, so that the terminal can switch between multiple TRPs.
  • the terminal performs BWP handover according to the BWP indicated by the main TRP, thereby providing a BWP handover scheme in a multi-TRP scenario, ensuring the accuracy of BWP handover and realizing reliable transmission between the terminal and the base station .
  • Fig. 1 is a schematic diagram showing a network architecture according to an exemplary embodiment
  • Fig. 2 is a flowchart showing a BWP handover method according to an exemplary embodiment
  • Fig. 4 is a block diagram showing a BWP switching device according to another exemplary embodiment
  • Fig. 6 is a schematic structural diagram showing a base station according to an exemplary embodiment
  • the base station 110 is a device deployed in an access network to provide the terminal 120 with a wireless communication function.
  • the base station 110 may include various forms of macro base stations, micro base stations, relay stations, access points, and so on.
  • the names of devices with base station functions may be different. For example, in a 5G NR system, they are called gNodeB or gNB. As communication technology evolves, the name "base station" may change.
  • the above-mentioned devices that provide wireless communication functions for the terminal 120 are collectively referred to as base stations.
  • the base station 110 may also be an in-vehicle device, which is suitable for communication between vehicles in the Internet of Vehicles. When communicating between vehicles, the channels or signaling in the present disclosure are all channels or signaling suitable for sidelinks.
  • the number of terminals 120 is usually multiple, and one or more terminals 120 may be distributed in a cell managed by each base station 110.
  • the terminal 120 may include various handheld devices with wireless communication functions, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to a wireless modem, as well as various forms of User Equipment (UE), mobile stations ( Mobile Station, MS), terminal device (terminal device), etc.
  • UE User Equipment
  • MS Mobile Station
  • terminal device terminal device
  • the terminal 120 may also be an in-vehicle device, which is suitable for scenarios of communication between vehicles in the Internet of Vehicles.
  • the channels or signaling in the present disclosure are all channels or signaling suitable for side links.
  • the "5G NR system" in the embodiments of the present disclosure may also be referred to as a 5G system or an NR system, but those skilled in the art can understand its meaning.
  • the technical solutions described in the embodiments of the present disclosure may be applicable to the 5G NR system, and may also be applicable to the subsequent evolution system of the 5G NR system and the 5G NR vehicle networking system.
  • Fig. 2 is a flow chart showing a BWP handover method according to an exemplary embodiment. This method can be applied to the network architecture shown in Figure 1. The method can include the following steps (201-204).
  • step 201 the base station sends TRP configuration information to the terminal.
  • the base station has multiple TRPs, and can communicate with the terminal through multiple TRPs. If the communication between multiple TRPs is a non-ideal backhaul line, each TRP individually configures PDCCH resources for the terminal, and schedules its own PDSCH to send downlink data to the terminal, or schedules its own PUSCH resource so that the terminal can send to the base station on the PUSCH resource Upstream data. However, at the same time, the terminal can only have one active BWP, and the terminal can only receive or send data on that active BWP.
  • the TRP configuration information is used to inform the terminal of the TRP configured by the base station.
  • the base station can configure one TRP for the terminal or multiple TRPs for the terminal.
  • the base station configures n TRPs for the terminal, where n is an integer greater than 1, the TRP configuration information is also used to indicate the main TRP configured by the base station for the terminal.
  • the terminal receives TRP configuration information sent by the base station.
  • the TRP configuration information includes the CORESET number and/or CORESET set number of each TRP configured by the base station for the terminal, where the TRP with the smallest CORESET number and/or CORESET set number is the main TRP, or, The TRP with the largest CORESET number and/or CORESET set number is the primary TRP.
  • the TRP with the smallest CORESET number is the main TRP.
  • the base station configures two TRPs for the terminal, denoted as TRP#0 and TRP#1. Take the TRP configuration information including the CORESET number of each TRP as an example. If the CORESET number of TRP#0 is 0, 1, and 2, and the CORESET number of TRP#1 is 3, 4, and 5, then the TRP corresponding to the CORESET numbered 0 (That is, TRP#0) is the main TRP. In addition, if it is specified that the TRP with the largest CORESET number is the main TRP, still taking the above example as an example, the TRP corresponding to the CORESET numbered 5 (that is, TRP#1) is the main TRP.
  • the TRP with the smallest CORESET set number is the main TRP. It is still assumed that the base station has configured two TRPs for the terminal, denoted as TRP#0 and TRP#1. Taking the TRP configuration information including the CORESET set number of each TRP as an example, if TRP#0 corresponds to the first CORESET set, the first CORESET set includes CORESET#0, CORESET#1, and CORESET#2, and the first CORESET set The number is 0.
  • the base station can assign the smallest CORESET number and/or CORESET set number to the new primary TRP, and then send the new TRP to the terminal Configuration information. For example, when the base station needs to reconfigure a new primary TRP for the terminal, the base station can assign CORESET#0 to the new primary TRP.
  • the current main TRP is TRP#0, that is, CORESET#0 is included in the CORESET of TRP#0; if the signal strength of TRP#0 becomes worse, the base station needs to reconfigure the terminal with a new main TRP, assuming TRP# 1, then CORESET#0 is assigned to TRP#1, for example, the CORESET numbers of TRP#1 are 0, 1, and 2, and the CORESET numbers of TRP#0 are 3, 4, and 5.
  • the base station can allocate the largest CORESET number and/or CORESET set number to the new main TRP, and then send the new TRP to the terminal Configuration information. For example, when the base station needs to reconfigure the terminal with a new primary TRP, the base station can assign CORESET#5 to the new primary TRP.
  • the foregoing TRP configuration information is sent to the terminal through RRC signaling and/or MAC signaling.
  • the base station may send TRP configuration information to the terminal through RRC signaling or MAC signaling.
  • the TRP configuration information includes the identification information of each TRP configured by the base station for the terminal, or includes the CORESET number and CORESET number of each TRP configured by the base station for the terminal. / Or CORESET set number, so that the terminal can determine each TRP configured by the base station according to the TRP configuration information, and determine the main TRP from it.
  • the base station only needs to use one RRC signaling or one MAC signaling to inform the terminal of each TRP configured to the terminal, and at the same time indicate the main TRP, which helps to save signaling overhead.
  • the base station may first configure multiple TRPs for the terminal through RRC signaling, and then indicate the main TRP to the terminal through MAC signaling.
  • the base station configures three TRPs for the terminal through RRC signaling, including TRP#0, TRP#1, and TRP#2, and then the base station indicates to the terminal that TRP#0 is the primary TRP through MAC signaling.
  • the base station can indicate the new primary TRP to the terminal through a new MAC signaling.
  • the base station informs the terminal of each TRP configured to the terminal through RRC signaling, and then instructs the main TRP through MAC signaling, which is more flexible in indicating the main TRP.
  • step 202 the terminal determines the main TRP according to the TRP configuration information.
  • the terminal After receiving the TRP configuration information, the terminal can determine the primary TRP according to the TRP configuration information.
  • the TRP configuration information includes the identification information of each TRP configured by the base station for the terminal, and the terminal determines the TRP with the smallest identification information as the primary TRP, or the terminal determines the TRP with the largest identification information as the primary TRP .
  • the TRP configuration information includes the CORESET number and/or CORESET set number of each TRP configured by the base station for the terminal, and the terminal determines the TRP with the smallest CORESET number and/or CORESET set number as the main TRP, Alternatively, the terminal determines the TRP with the largest CORESET number and/or CORESET set number as the main TRP.
  • step 203 the base station sends BWP handover information to the terminal through the main TRP.
  • the terminal can learn the identification information of the target BWP according to the BWP switching information, and further switch to the target BWP.
  • the base station sends TRP configuration information to the terminal so that the terminal can determine the main TRP according to the TRP configuration information. Furthermore, the base station sends BWP switching information to the terminal through the main TRP to Instructs the terminal to switch the BWP to the target BWP, which realizes that in the scenario where multiple TRPs communicate with the terminal, the terminal performs BWP switching according to the BWP indicated by the main TRP, thereby providing a BWP switching solution in the multi-TRP scenario, ensuring The accuracy of BWP handover enables reliable transmission between the terminal and the base station.
  • the other TRPs among the n TRPs do not allocate resources to the terminal.
  • the main TRP can allocate resources to the terminal and communicate with the terminal.
  • the duration of the target period can be pre-configured, which is not limited in the embodiment of the present disclosure.
  • the main TRP is also used to send a BWP switching notification to other TRPs in the n TRPs except the main TRP after sending the BWP switching information, and the BWP switching notification is used to notify other TRPs that the terminal has switched to Target BWP; other TRPs are used to allocate resources for the terminal on the target BWP.
  • the main TRP is also used to send a BWP switching notification to other TRPs in the n TRPs except the main TRP before sending the BWP switching information.
  • the BWP switching notification is used to notify other TRPs that the terminal will switch to the target BWP after the target time. .
  • TRPs can communicate with each other.
  • each TRP is independently scheduled. Therefore, the main TRP can also send BWP switching notifications to other TRPs to notify other TRP terminals that they have Switch to the target BWP or inform other TRP terminals to switch to the target BWP after the target time, and further, other TRPs can allocate resources to the terminal on the target BWP.
  • the terminal when switching to the target BWP, the terminal starts a timer; wherein, before the timer ends, the terminal only communicates with the main TRP according to the resources allocated in the PDCCH information sent by the main TRP.
  • the foregoing PDCCH information may be DCI signaling.
  • the value of the above-mentioned timer is written into the chip of the terminal in advance, and/or is configured to the terminal by the base station.
  • the base station can configure the above-mentioned timer value for the terminal through RRC signaling.
  • the base station needs to inform the terminal in advance which timer needs to be started when switching to the target BWP.
  • the base station may inform the terminal which timer needs to be started through RRC signaling, MAC signaling or DCI signaling.
  • the terminal can monitor whether other TRPs have sent PDCCH information. If other TRPs have sent PDCCH information, the terminal can also use the PDCCH information sent by other TRPs. Communicate with other TRPs on the resources allocated in.
  • the above-mentioned steps performed on the base station side can be separately implemented as a BWP handover method on the base station side.
  • the above-mentioned steps performed on the terminal side can be individually implemented as a BWP switching method on the terminal side.
  • the configuration information sending module 310 is configured to send TRP configuration information, where the TRP configuration information is used to indicate a primary TRP configured by the base station, and the primary TRP is one TRP among n TRPs configured by the base station. n is an integer greater than 1.
  • the switching information sending module 320 is configured to send BWP switching information through the main TRP, where the BWP switching information is used to indicate switching to a target BWP.
  • the configuration information receiving module 410 is configured to receive TRP configuration information.
  • the main TRP determination module 420 is configured to determine the main TRP according to the TRP configuration information, where the main TRP is one TRP among n TRPs configured for the terminal, and the n is an integer greater than 1.
  • the BWP switching module 440 is configured to switch to the target BWP according to the BWP switching information.
  • the base station sends TRP configuration information to the terminal so that the terminal can determine the main TRP according to the TRP configuration information. Furthermore, the base station sends BWP switching information to the terminal through the main TRP to Instructs the terminal to switch the BWP to the target BWP, which realizes that in the scenario where multiple TRPs communicate with the terminal, the terminal performs BWP switching according to the BWP indicated by the main TRP, thereby providing a BWP switching solution in the multi-TRP scenario, ensuring The accuracy of BWP handover enables reliable transmission between the terminal and the base station.
  • the primary TRP determining module 420 is configured to determine the TRP with the smallest identification information as the primary TRP, or determine the TRP with the largest identification information as the primary TRP.
  • the TRP configuration information includes the CORESET number and/or CORESET set number of each TRP;
  • the main TRP determination module 420 is configured to determine the TRP with the smallest CORESET number and/or CORESET set number as the main TRP, or determine the TRP with the largest CORESET number and/or CORESET set number as the main TRP The main TRP.
  • the terminal before the timer ends, the terminal only communicates with the main TRP according to the resources allocated in the PDCCH information sent by the main TRP.
  • the apparatus further includes: a communication module 460.
  • the communication module 460 is configured to maintain communication with the main TRP after the timer expires, and communicate with the other TRPs according to the resources allocated in the PDCCH information sent by other TRPs in the n TRPs Communication.
  • the value of the timer is written into the chip of the terminal in advance, and/or is configured to the terminal by the base station.
  • the device provided in the above embodiment realizes its functions, only the division of the above functional modules is used for illustration. In actual applications, the above functions can be allocated by different functional modules according to actual needs. That is, the content structure of the device is divided into different functional modules to complete all or part of the functions described above.
  • the present disclosure also provides a BWP handover device, which can be applied to the base station described above, and can realize the BWP handover method provided by the present disclosure on the base station side.
  • the device may include a processor, and a memory for storing executable instructions of the processor.
  • the processor is configured as:
  • TRP configuration information is used to indicate a primary TRP configured by the base station, where the primary TRP is one TRP among n TRPs configured by the base station, and the n is an integer greater than 1;
  • the BWP switching information is sent through the main TRP, and the BWP switching information is used to indicate switching to the target BWP.
  • the TRP configuration information includes identification information of each TRP; wherein the TRP with the smallest identification information is the main TRP, or the TRP with the largest identification information is the main TRP .
  • the TRP configuration information includes the CORESET number and/or CORESET set number of each TRP; wherein the TRP with the smallest CORESET number and/or CORESET set number is the main TRP, or, The TRP with the largest CORESET number and/or CORESET set number is the main TRP.
  • the TRP configuration information is sent to the terminal through RRC signaling and/or MAC signaling.
  • the main TRP is further configured to send a BWP switching notification to other TRPs among the n TRPs except the main TRP after sending the BWP switching information, the BWP switching notification It is used to notify the other TRP that the terminal has switched to the target BWP; the other TRP is used to allocate resources for the terminal on the target BWP.
  • Another exemplary embodiment of the present disclosure also provides a BWP switching device, which can be applied to the terminal introduced above, and can implement the BWP switching method provided by the present disclosure on the terminal side.
  • the device may include a processor, and a memory for storing executable instructions of the processor.
  • the processor is configured as:
  • the primary TRP is one TRP among n TRPs configured for the terminal, and the n is an integer greater than 1.
  • the TRP configuration information includes identification information of each TRP
  • the processor is configured to determine the TRP with the smallest identification information as the primary TRP, or determine the TRP with the largest identification information as the primary TRP.
  • the TRP configuration information includes the CORESET number and/or CORESET set number of each TRP;
  • the processor is configured to determine the TRP with the smallest CORESET number and/or CORESET set number as the main TRP, or determine the TRP with the largest CORESET number and/or CORESET set number as the main TRP .
  • the processor is further configured to start a timer when switching to the target BWP; wherein, before the timer ends, the terminal only uses the PDCCH sent by the main TRP The resources allocated in the information communicate with the main TRP.
  • the processor is further configured to maintain communication with the main TRP after the timer expires, and allocates according to PDCCH information sent by other TRPs among the n TRPs. Resource to communicate with the other TRP.
  • the value of the timer is written into the chip of the terminal in advance, and/or is configured to the terminal by the base station.
  • the base station and the terminal include hardware structures and/or software modules corresponding to each function.
  • the embodiments of the present disclosure can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Those skilled in the art can use different methods for each specific application to implement the described functions, but such implementation should not be considered as going beyond the scope of the technical solutions of the embodiments of the present disclosure.
  • Fig. 6 is a schematic structural diagram showing a base station according to an exemplary embodiment.
  • the base station 600 includes a transmitter/receiver 601 and a processor 602.
  • the processor 602 may also be a controller, which is represented as "controller/processor 602" in FIG. 6.
  • the transmitter/receiver 601 is used to support the sending and receiving of information between the base station and the terminal in the foregoing embodiment, and to support communication between the base station and other network entities.
  • the processor 602 performs various functions for communicating with the terminal.
  • the uplink signal from the terminal is received via the antenna, demodulated by the receiver 601 (for example, demodulating the high-frequency signal into a baseband signal), and further processed by the processor 602 to restore the terminal Send to business data and signaling information.
  • service data and signaling messages are processed by the processor 602, and modulated by the transmitter 601 (for example, the baseband signal is modulated into a high-frequency signal) to generate a downlink signal, which is transmitted to the terminal via an antenna .
  • the processor 602 is further configured to execute various steps on the base station side in the foregoing method embodiments and/or other steps of the technical solutions described in the embodiments of the present disclosure.
  • the base station 600 may further include a memory 603, and the memory 603 is used to store program codes and data of the base station 600.
  • the base station may also include a communication unit 604.
  • the communication unit 604 is used to support the base station to communicate with other network entities (for example, network equipment in the core network, etc.).
  • the communication unit 604 may be an NG-U interface to support communication between the base station and a UPF (User Plane Function) entity; or, the communication unit 604 may also be an NG-C
  • the interface is used to support access to AMF (Access and Mobility Management Function) entities for communication.
  • AMF Access and Mobility Management Function
  • FIG. 6 only shows a simplified design of the base station 600.
  • the base station 600 may include any number of transmitters, receivers, processors, controllers, memories, communication units, etc., and all base stations that can implement the embodiments of the present disclosure are within the protection scope of the embodiments of the present disclosure.
  • Fig. 7 is a schematic structural diagram of a terminal according to an exemplary embodiment.
  • the terminal 700 includes a transmitter 701, a receiver 702, and a processor 703.
  • the processor 703 may also be a controller, which is represented as "controller/processor 703" in FIG. 7.
  • the terminal 700 may further include a modem processor 705, where the modem processor 705 may include an encoder 706, a modulator 707, a decoder 708, and a demodulator 709.
  • the transmitter 701 adjusts (eg, analog conversion, filtering, amplification, and upconversion, etc.) the output samples and generates an uplink signal, which is transmitted to the base station via an antenna.
  • the antenna receives the downlink signal transmitted by the base station.
  • the receiver 702 adjusts (eg, filters, amplifies, down-converts, and digitizes, etc.) the signal received from the antenna and provides input samples.
  • the encoder 706 receives service data and signaling messages to be transmitted on the uplink, and processes the service data and signaling messages (for example, formatting, encoding, and interleaving).
  • the modulator 707 further processes (for example, symbol mapping and modulation) the encoded service data and signaling messages and provides output samples.
  • the demodulator 709 processes (e.g., demodulates) the input samples and provides symbol estimates.
  • the decoder 708 processes (e.g., deinterleaves and decodes) the symbol estimates and provides decoded data and signaling messages sent to the terminal 700.
  • the encoder 706, the modulator 707, the demodulator 709, and the decoder 708 can be implemented by a synthesized modem processor 705. These units are processed according to the radio access technology adopted by the radio access network (for example, 5G NR and access technologies of other evolved systems). It should be noted that when the terminal 700 does not include the modem processor 705, the foregoing functions of the modem processor 705 may also be performed by the processor 703.
  • the processor 703 controls and manages the actions of the terminal 700, and is used to execute the processing procedure performed by the terminal 700 in the foregoing embodiment of the present disclosure.
  • the processor 703 is further configured to execute each step on the terminal side in the foregoing method embodiment, and/or other steps of the technical solution described in the embodiment of the present disclosure.
  • the terminal 700 may further include a memory 704, and the memory 704 is configured to store program codes and data for the terminal 700.
  • FIG. 7 only shows a simplified design of the terminal 700.
  • the terminal 700 may include any number of transmitters, receivers, processors, modem processors, memories, etc., and all terminals that can implement the embodiments of the present disclosure are within the protection scope of the embodiments of the present disclosure.
  • the embodiments of the present disclosure also provide a non-transitory computer-readable storage medium on which a computer program is stored, and when the computer program is executed by the processor of the base station, the above-mentioned BWP switching method on the base station side is implemented.
  • the embodiment of the present disclosure also provides a non-transitory computer-readable storage medium on which a computer program is stored, and when the computer program is executed by the processor of the terminal, the above-mentioned BWP switching method on the terminal side is implemented.

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Abstract

本公开是关于一种BWP切换方法、装置及存储介质。所述方法包括:基站向终端发送TRP配置信息;终端根据TRP配置信息确定主TRP;基站通过主TRP向终端发送BWP切换信息;终端根据BWP切换信息切换至目标BWP。本公开通过基站向终端发送TRP配置信息,以便终端根据该TRP配置信息确定主TRP,进一步,基站通过该主TRP向终端发送BWP切换信息,以指示终端将BWP切换至目标BWP,实现了在多个TRP与终端通信的场景下,终端根据主TRP指示的BWP来进行BWP切换,从而提供了一种多TRP场景下的BWP切换方案,确保了BWP切换的准确性,实现终端与基站之间的可靠传输。

Description

BWP切换方法、装置及存储介质 技术领域
本公开实施例涉及通信技术领域,特别涉及一种BWP切换方法、装置及存储介质。
背景技术
在5G NR(New Radio,新空口)***中,基站可以给终端配置多个BWP(Bandwidth Part,带宽部分),其中有些BWP的带宽较宽,有些BWP的带宽较窄。另外,在同一时间,终端只能有一个激活(active)BWP,终端只能在该激活BWP上接收或发送数据。若终端需要传输的数据较多时,基站可以指示终端切换到带宽较宽的BWP;若终端需要传输的数据较少时,基站可以再指示终端切换到带宽较窄的BWP。
为了提高空间分集增益,基站可以通过多个TRP(Transmitter Receiver Point,传输接收点)的天线面板(Panel)向终端发送下行数据,对应地,终端也可以通过多个Panel接收基站发送的数据,或者通过多个Panel向基站发送上行数据。此时,若多个TRP之间通信是非理想回程线路(non-ideal backhaul),则每个TRP单独给终端配置PDCCH(Physical Downlink Control Channel,物理下行控制信道)资源,并调度各自的PDSCH(Physical Downlink Shared Channel,物理下行共享信道)资源给终端发送下行数据,或者调度各自的PUSCH(Physical Uplink Shared Channel,物理上行共享信道)资源以便终端在该PUSCH资源上给基站发送上行数据。
在多个TRP与终端通信的场景下,多个TRP只能在同一个激活BWP上与同一个终端进行通信,此时终端无法确定根据哪个TRP指示的BWP来进行BWP切换。
发明内容
本公开实施例提供了一种BWP切换方法、装置及存储介质。所述技术方案如下:
根据本公开实施例的第一方面,提供了一种BWP切换方法,所述方法包括:
基站发送TRP配置信息,所述TRP配置信息用于指示所述基站配置的主TRP,所述主TRP是所述基站配置的n个TRP中的一个TRP,所述n为大于1的整数;
所述基站通过所述主TRP发送BWP切换信息,所述BWP切换信息用于指示切换至目标BWP。
可选地,所述TRP配置信息包括各个所述TRP的标识信息;
其中,所述标识信息最小的TRP为所述主TRP,或者,所述标识信息最大的TRP为所述主TRP。
可选地,所述TRP配置信息包括各个所述TRP的CORESET(Control Resource Set,控制资源集合)编号和/或CORESET集合编号;
其中,所述CORESET编号和/或CORESET集合编号最小的TRP为所述主TRP,或者,所述CORESET编号和/或CORESET集合编号最大的TRP为所述主TRP。
可选地,所述TRP配置信息通过RRC(Radio Resource Control,无线资源控制)信令和/或MAC(Medium Access Control,媒体接入控制)信令发送给所述终端。
可选地,所述主TRP还用于在发送所述BWP切换信息之后,向所述n个TRP中除所述主TRP之外的其它TRP发送BWP切换通知,所述BWP切换通知用于向所述其它TRP通知终端已切换至所述目标BWP;
所述其它TRP用于在所述目标BWP上为所述终端分配资源。
可选地,在发送所述TRP配置信息之后的目标时段内,所述n个TRP中除所述主TRP之外的其它TRP不给终端分配资源。
根据本公开实施例的第二方面,提供了一种BWP切换方法,所述方法包括:
终端接收TRP配置信息;
所述终端根据所述TRP配置信息确定主TRP,所述主TRP是配置给所述终端的n个TRP中的一个TRP,所述n为大于1的整数;
所述终端接收所述主TRP发送的BWP切换信息,所述BWP切换信息用于指示所述终端切换至目标BWP;
所述终端根据所述BWP切换信息切换至所述目标BWP。
可选地,所述TRP配置信息包括各个所述TRP的标识信息;
所述终端根据所述TRP配置信息确定所述主TRP,包括:
所述终端将所述标识信息最小的TRP确定为所述主TRP,或者,所述终端将所述标识信息最大的TRP确定为所述主TRP。
可选地,所述TRP配置信息包括各个所述TRP的CORESET编号和/或CORESET集合编号;
所述终端根据所述TRP配置信息确定所述主TRP,包括:
所述终端将所述CORESET编号和/或CORESET集合编号最小的TRP确定为所述主TRP,或者,所述终端将所述CORESET编号和/或CORESET集合编号最大的TRP确定为所述主TRP。
可选地,所述方法还包括:
在切换至所述目标BWP时,所述终端启动定时器;
其中,所述终端在所述定时器结束之前,仅根据所述主TRP发送的PDCCH信息中分配的资源与所述主TRP进行通信。
可选地,所述方法还包括:
在所述定时器结束之后,所述终端保持与所述主TRP进行通信,并根据所述n个TRP中的其它TRP发送的PDCCH信息中分配的资源,与所述其它TRP进行通信。
可选地,所述定时器的值预先写入到所述终端的芯片中,和/或,由基站配置给所述终端。
根据本公开实施例的第三方面,提供了一种BWP切换装置,应用于基站中,所述装置包括:
配置信息发送模块,被配置为发送TRP配置信息,所述TRP配置信息用于指示所述基站配置的主TRP,所述主TRP是配置的n个TRP中的一个TRP,所述n为大于1的整数;
切换信息发送模块,被配置为通过所述主TRP发送BWP切换信息,所述BWP切换信息用于指示切换至目标BWP。
可选地,所述TRP配置信息包括各个所述TRP的标识信息;
其中,所述标识信息最小的TRP为所述主TRP,或者,所述标识信息最大的TRP为所述主TRP。
可选地,所述TRP配置信息包括各个所述TRP的CORESET编号和/或CORESET集合编号;
其中,所述CORESET编号和/或CORESET集合编号最小的TRP为所述主TRP,或者,所述CORESET编号和/或CORESET集合编号最大的TRP为所述主TRP。
可选地,所述TRP配置信息通过RRC信令和/或MAC信令发送给所述终端。
可选地,所述主TRP还用于在发送所述BWP切换信息之后,向所述n个TRP中除所述主TRP之外的其它TRP发送BWP切换通知,所述BWP切换通知用于向所述其它TRP通知终端已切换至所述目标BWP;
所述其它TRP用于在所述目标BWP上为所述终端分配资源。
可选地,在发送所述TRP配置信息之后的目标时段内,所述n个TRP中除所述主TRP之外的其它TRP不给终端分配资源。
根据本公开实施例的第四方面,提供了一种BWP切换装置,应用于终端中,所述装置包括:
配置信息接收模块,被配置为接收TRP配置信息;
主TRP确定模块,被配置为根据所述TRP配置信息确定主TRP,所述主TRP是配置给所述终端的n个TRP中的一个TRP,所述n为大于1的整数;
切换信息接收模块,被配置为接收所述主TRP发送的BWP切换信息,所述BWP切换信息用于指示所述终端切换至目标BWP;
BWP切换模块,被配置为所述终端根据所述BWP切换信息切换至所述目标BWP。
可选地,所述TRP配置信息包括各个所述TRP的标识信息;
所述主TRP确定模块,被配置为将所述标识信息最小的TRP确定为所述主TRP,或者,将所述标识信息最大的TRP确定为所述主TRP。
可选地,所述TRP配置信息包括各个所述TRP的CORESET编号和/或CORESET集合编号;
所述主TRP确定模块,被配置为将所述CORESET编号和/或CORESET集合编号最小的TRP确定为所述主TRP,或者,将所述CORESET编号和/或CORESET集合编号最大的TRP确定为所述主TRP。
可选地,所述装置还包括:
定时器启动模块,被配置为在切换至所述目标BWP时,启动定时器;
其中,所述终端在所述定时器结束之前,仅根据所述主TRP发送的PDCCH信息中分配的资源与所述主TRP进行通信。
可选地,所述装置还包括:
通信模块,被配置为在所述定时器结束之后,保持与所述主TRP进行通信,并根据所述n个TRP中的其它TRP发送的PDCCH信息中分配的资源,与所述其它TRP进行通信。
可选地,所述定时器的值预先写入到所述终端的芯片中,和/或,由基站配置给所述终端。
根据本公开实施例的第五方面,提供了一种BWP切换装置,应用于基站中,所述装置包括:
处理器;
用于存储所述处理器的可执行指令的存储器;
其中,所述处理器被配置为:
发送TRP配置信息,所述TRP配置信息用于指示所述基站配置的主TRP,所述主TRP是所述基站配置的n个TRP中的一个TRP,所述n为大于1的整数;
通过所述主TRP发送BWP切换信息,所述BWP切换信息用于指示切换至目标BWP。
根据本公开实施例的第六方面,提供了一种BWP切换装置,应用于终端中,所述装置包括:
处理器;
用于存储所述处理器的可执行指令的存储器;
其中,所述处理器被配置为:
接收TRP配置信息;
根据所述TRP配置信息确定主TRP,所述主TRP是配置给所述终端的n个TRP中的一个TRP,所述n为大于1的整数;
接收所述主TRP发送的BWP切换信息,所述BWP切换信息用于指示所述终端切换至目标BWP;
根据所述BWP切换信息切换至所述目标BWP。
根据本公开实施例的第七方面,提供了一种非临时性计算机可读存储介质,其上存储有计算机程序,所述计算机程序被处理器执行时实现如第一方面所述方法的步骤,或者实现如第二方面所述方法的步骤。
本公开实施例提供的技术方案可以包括以下有益效果:
通过基站向终端发送TRP配置信息,以便终端根据该TRP配置信息确定主TRP,进一步,基站通过该主TRP向终端发送BWP切换信息,以指示终端将BWP切换至目标BWP,实现了在多个TRP与终端通信的场景下,终端根据主TRP指示的BWP来进行BWP切换,从而提供了一种多TRP场景下的BWP切换方案,确保了BWP切换的准确性,实现终端与基站之间的可靠传输。
应当理解的是,以上的一般描述和后文的细节描述仅是示例性和解释性的,并不能限制本公开。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分,示出了符合本公开的实施例,并与说明书一起用于解释本公开的原理。
图1是根据一示例性实施例示出的一种网络架构的示意图;
图2是根据一示例性实施例示出的一种BWP切换方法的流程图;
图3是根据一示例性实施例示出的一种BWP切换装置的框图;
图4是根据另一示例性实施例示出的一种BWP切换装置的框图;
图5是根据又一示例性实施例示出的一种BWP切换装置的框图;
图6是根据一示例性实施例示出的一种基站的结构示意图;
图7是根据一示例性实施例示出的一种终端的结构示意图。
具体实施方式
这里将详细地对示例性实施例进行说明,其示例表示在附图中。下面的描述涉及附图时,除非另有表示,不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本公开相一致的所有实施方式。相反,它们仅是与如所附权利要求书中所详述的、本公开的一些方面相一致的装置和方法的例子。
本公开实施例描述的网络架构以及业务场景是为了更加清楚地说明本公开实施例的技术方案,并不构成对本公开实施例提供的技术方案的限定,本领域普通技术人员可知,随着网络架构的演变和新业务场景的出现,本公开实施例提供的技术方案对于类似的技术问题,同样适用。
图1是根据一示例性实施例示出的一种网络架构的示意图。该网络架构可以包括:基站110和终端120。
基站110部署在接入网中。5G NR***中的接入网可以称为NG-RAN(New Generation-Radio Access Network,新一代无线接入网)。基站110与终端120之间通过某种空口技术互相通信,例如可以通过蜂窝技术相互通信。
基站110是一种部署在接入网中用以为终端120提供无线通信功能的装置。基站110可以包括各种形式的宏基站,微基站,中继站,接入点等等。在采用不同的无线接入技术的***中,具备基站功能的设备的名称可能会有所不同,例如在5G NR***中,称为gNodeB或者gNB。随着通信技术的演进,“基站”这一名称可能会变化。为方便描述,本公开实施例中,上述为终端120提供无线通信功能的装置统称为基站。基站110也可以是一个车载设备,适用于车联网中车车之间通信的场景。当车车通信时,本公开中的信道或信令都为适用于侧链路(sidelink)的信道或信令。
终端120的数量通常为多个,每一个基站110所管理的小区内可以分布一个或多个终端120。终端120可以包括各种具有无线通信功能的手持设备、车载设备、可穿戴设备、计算设备或连接到无线调制解调器的其它处理设备,以及各种形式的用户设备(User Equipment,UE),移动台(Mobile Station,MS),终端设备(terminal device)等等。为方便描述,本公开实施例中,上面提到的设备统称为终端。终端120也可以是一个车载设备,适用于车联网中车车之间通信的场景。当车车通信时,本公开中的信道或信令都为适用于侧链路的信道或信令。
本公开实施例中的“5G NR***”也可以称为5G***或者NR***,但本领域技术人员可以理解其含义。本公开实施例描述的技术方案可以适用于5G NR***,也可以适用于5G NR***后续的演进***以及5G NR车联网***。
图2是根据一示例性实施例示出的一种BWP切换方法的流程图。该方法可应用于图1所示的网络架构中。该方法可以包括如下几个步骤(201~204)。
在步骤201中,基站向终端发送TRP配置信息。
在本公开实施例中,基站具有多个TRP,可以通过多个TRP与终端进行通信。若多个TRP之间通信是非理想回程线路,则每个TRP单独给终端配置PDCCH资源,并调度各自的PDSCH给终端发送下行数据,或者调度各自的PUSCH资源以便终端在该PUSCH资源上给基站发送上行数据。但是,在同一时间,终端只能有一个激活BWP,且终端只能在该激活BWP上接收或发送数 据。此时终端无法确定根据哪个TRP指示的BWP来进行BWP切换,因此基站可以为终端配置主TRP,以便在多个TRP与终端通信的场景下,终端根据主TRP指示的BWP来进行BWP切换。
TRP配置信息用于向终端告知基站给其配置的TRP,基站可以给终端配置一个TRP,也可以给终端配置多个TRP。在基站给终端配置多个TRP的情况下,如基站给终端配置n个TRP,n为大于1的整数,TRP配置信息还用于指示基站为终端配置的主TRP,主TRP是上述基站配置给终端的n个TRP中的一个TRP。对应地,终端接收基站发送的TRP配置信息。
在一种可能的实施方式中,上述TRP配置信息包括基站给终端配置的各个TRP的标识信息,其中,标识信息最小的TRP为主TRP,或者,标识信息最大的TRP为主TRP。
基站可以为不同的TRP分配不同的标识信息(也即TRP ID)。以标识信息最小的TRP为主TRP为例,基站为主TRP分配最小的标识信息,例如基站为主TRP分配的TRP ID为0。示例性地,基站向终端发送的TRP配置信息包括3个TRP ID,分别为0、1和2,因此终端将TRP ID为0的TRP作为主TRP。或者,以标识信息最大的TRP为主TRP为例,基站向终端发送的TRP配置信息包括3个TRP ID,分别为0、1和2,因此终端将TRP ID为2的TRP作为主TRP。
如果需要重配置,则当规定标识信息最小的TRP为主TRP时,基站可以为新的主TRP分配最小的标识信息,然后向终端发送新的TRP配置信息;当规定标识信息最大的TRP为主TRP时,基站可以为新的主TRP分配最大的标识信息,然后向终端发送新的TRP配置信息。
另外,TRP的标识信息所对应的TRP,可以由基站告知给终端。例如,基站向终端发送TRP的标识信息与TRP指示信息之间的对应关系。TRP指示信息用于供终端确定相应的TRP,不同的TRP具有不同的指示信息。可选地,TRP指示信息包括TRP的CORESET位置和/或TCI(transmission configuration indication,传输配置指示)状态编号。终端根据上述对应关系,可以确定出每个标识信息所代表的TRP。上述对应关系可以携带在TRP配置信息中,也可以在发送TRP配置信息之后发送,本公开实施例对此不作限定。
在另一种可能的实施方式中,TRP配置信息包括基站给终端配置的各个TRP的CORESET编号和/或CORESET集合编号,其中,CORESET编号和/或CORESET集合编号最小的TRP为主TRP,或者,CORESET编号和/或CORESET 集合编号最大的TRP为主TRP。
示例性地,CORESET编号最小的TRP为主TRP。假设基站给终端配置了两个TRP,记为TRP#0和TRP#1。以TRP配置信息包括各个TRP的CORESET编号为例,如果TRP#0的CORESET编号为0、1和2,TRP#1的CORESET编号为3、4和5,则编号为0的CORESET所对应的TRP(也即TRP#0)为主TRP。另外,如果规定CORESET编号最大的TRP为主TRP,仍然以上述示例为例,则编号为5的CORESET所对应的TRP(也即TRP#1)为主TRP。
示例性地,CORESET集合编号最小的TRP为主TRP。仍然假设基站给终端配置了两个TRP,记为TRP#0和TRP#1。以TRP配置信息包括各个TRP的CORESET集合编号为例,如果TRP#0对应于第一CORESET集合,该第一CORESET集合中包括CORESET#0、CORESET#1和CORESET#2,该第一CORESET集合的编号为0,如果TRP#1对应于第二CORESET集合,该第二CORESET集合中包括CORESET#3、CORESET#4和CORESET#5,该第二CORESET集合的编号为1,则编号为0的CORESET集合所对应的TRP(也即TRP#0)为主TRP。另外,如果规定CORESET集合编号最大的TRP为主TRP,仍然以上述示例为例,则编号为1的CORESET集合所对应的TRP(也即TRP#1)为主TRP。
如果需要重配置,当规定CORESET编号和/或CORESET集合编号最小的TRP为主TRP时,则基站可以为新的主TRP分配最小的CORESET编号和/或CORESET集合编号,然后向终端发送新的TRP配置信息。例如,当基站需要重新给终端配置新的主TRP时,基站可以将CORESET#0赋予新的主TRP。示例性地,假设当前主TRP为TRP#0,即TRP#0的CORESET中包括CORESET#0;若TRP#0的信号强度变差,基站需要重新给终端配置新的主TRP,假设为TRP#1,则将CORESET#0赋予TRP#1,例如此时TRP#1的CORESET编号为0、1和2,TRP#0的CORESET编号为3、4和5。
如果需要重配置,当规定CORESET编号和/或CORESET集合编号最大的TRP为主TRP时,则基站可以为新的主TRP分配最大的CORESET编号和/或CORESET集合编号,然后向终端发送新的TRP配置信息。例如,当基站需要重新给终端配置新的主TRP时,基站可以将CORESET#5赋予新的主TRP。示例性地,假设当前主TRP为TRP#1,即TRP#1的CORESET中包括CORESET#5;若TRP#1的信号强度变差,基站需要重新给终端配置新的主TRP,假设为 TRP#0,则将CORESET#5赋予TRP#0,例如此时TRP#1的CORESET编号为0、1和2,TRP#0的CORESET编号为3、4和5。
可选地,上述TRP配置信息通过RRC信令和/或MAC信令发送给终端。
示例性地,基站可以通过RRC信令或MAC信令向终端发送TRP配置信息,该TRP配置信息包括基站给终端配置的各个TRP的标识信息,或者包括基站给终端配置的各个TRP的CORESET编号和/或CORESET集合编号,以便终端可以根据该TRP配置信息确定基站给其配置的各个TRP,并从中确定出主TRP。在这种情况下,基站仅需通过一个RRC信令或者一个MAC信令即可将配置给终端的各个TRP告知给终端,并同时指示主TRP,有助于节省信令开销。
示例性地,基站可以先通过RRC信令给终端配置多个TRP,然后再通过MAC信令向终端指示主TRP。如基站通过RRC信令给终端配置了3个TRP,包括TRP#0、TRP#1和TRP#2,然后基站再通过MAC信令给终端指示TRP#0为主TRP。另外,当基站需要重新给终端配置新的主TRP时,基站可以通过新的MAC信令向终端指示新的主TRP。在这种情况下,基站通过RRC信令将配置给终端的各个TRP告知给终端,再通过MAC信令指示主TRP,对于主TRP的指示更具灵活性。
在步骤202中,终端根据TRP配置信息确定主TRP。
终端在接收到上述TRP配置信息之后,可以根据该TRP配置信息确定主TRP。
在一种可能的实施方式中,TRP配置信息包括基站给终端配置的各个TRP的标识信息,则终端将标识信息最小的TRP确定为主TRP,或者,终端将标识信息最大的TRP确定为主TRP。
在另一种可能的实施方式中,TRP配置信息包括基站给终端配置的各个TRP的CORESET编号和/或CORESET集合编号,则终端将CORESET编号和/或CORESET集合编号最小的TRP确定为主TRP,或者,终端将CORESET编号和/或CORESET集合编号最大的TRP确定为主TRP。
在步骤203中,基站通过主TRP向终端发送BWP切换信息。
上述BWP切换信息用于指示终端切换至目标BWP。该BWP切换信息中可以包含目标BWP的标识信息。可选地,上述BWP切换信息通过DCI(Downlink Control Information,下行控制信息)信令发送给终端。
在步骤204中,终端根据BWP切换信息切换至目标BWP。
终端可以根据该BWP切换信息获知目标BWP的标识信息,进一步切换至该目标BWP。
此时,对于基站配置给终端的n个TRP中除主TRP之外的其它TRP来说,主要有如下两种情况:一,其它TRP发送的DCI信令中携带BWP切换信息,以指示终端进行BWP切换,但终端忽略其它TRP发送的BWP切换信息;二,其它TRP发送的DCI信令中不携带BWP切换信息,不指示终端进行BWP切换。
综上所述,本公开实施例提供的技术方案中,通过基站向终端发送TRP配置信息,以便终端根据该TRP配置信息确定主TRP,进一步,基站通过该主TRP向终端发送BWP切换信息,以指示终端将BWP切换至目标BWP,实现了在多个TRP与终端通信的场景下,终端根据主TRP指示的BWP来进行BWP切换,从而提供了一种多TRP场景下的BWP切换方案,确保了BWP切换的准确性,实现终端与基站之间的可靠传输。
下面,对终端与各个TRP之间的通信情况进行介绍说明。
在示例性实施例中,在基站向终端发送TRP配置信息之后的目标时段内,n个TRP中除主TRP之外的其它TRP不给终端分配资源。
在目标时段内,只有主TRP可以给终端分配资源,并与终端进行通信。目标时段的时长可以预先配置,本公开实施例对此不作限定。
在示例性实施例中,主TRP还用于在发送BWP切换信息之后,向n个TRP中除主TRP之外的其它TRP发送BWP切换通知,BWP切换通知用于向其它TRP通知终端已切换至目标BWP;其它TRP用于在目标BWP上为终端分配资源。或者主TRP还用于在发送BWP切换信息之前,向n个TRP中除主TRP之外的其它TRP发送BWP切换通知,BWP切换通知用于向其它TRP通知终端在目标时间后将切换至目标BWP。
多个TRP之间可以相互进行通信,当多个TRP之间通信是非理想回程线路时,每个TRP独立进行调度,因此,主TRP还可以向其它TRP发送BWP切换通知,以通知其它TRP终端已切换至目标BWP或者告知其它TRP终端在目标时间后将切换至目标BWP,进而,其它TRP可以在目标BWP上给终端分配资源。
在示例性实施例中,在切换至目标BWP时,终端启动定时器;其中,终端在定时器结束之前,仅根据主TRP发送的PDCCH信息中分配的资源,与主TRP 进行通信。上述PDCCH信息可以是DCI信令。
上述终端与主TRP进行通信包括但不限于以下任意一种:接收PDSCH的下行数据、接收SSB(Synchronization Signal Block,同步信号块)、接收NZP CSI-RS(Non Zero Power Channel State Information Reference Signal,非零功率信道状态信息参考信号)、接收DRS(Discovery Signal,发现参考信号)、发送PUCCH(Physical Uplink Control Channel,物理上行控制信道)信息、发送PUSCH信息、发送PRACH(Physical Random Access Channel,物理随机接入信道)信息、发送SRS(Sounding Reference Signal,探测参考信号)等等,本公开实施例对此不作限定。
可选地,上述定时器的值预先写入到终端的芯片中,和/或,由基站配置给终端。其中,基站可以通过RRC信令给终端配置上述定时器的值。
关于上述定时器的值,主要有下述两种情况:
一,当上述定时器的值只有一个,且大于0时,表示多个TRP之间的通信是非理想回程线路,将该定时器的值写入终端的芯片中,基站可以通过RRC信令或者MAC信令提前告知终端,在切换至目标BWP时,需要启动定时器。
二,当上述定时器的值有两个,且一个为0,另一个大于0时,其中,当定时器的值为0时,表示多个TRP之间的通信是理想回程线路,没有时延;此时,基站需要提前告知终端,在切换至目标BWP时,需要启动哪一个定时器。可选地,基站可以通过RRC信令、MAC信令或者DCI信令告知终端需要启动哪一个定时器。
在定时器结束之前,对于n个TRP中除主TRP之外的其它TRP,主要有下述两种情况:
一,其它TRP可以向终端发送PDCCH信息,但终端可能接收不到,例如,对于切换前的BWP和切换后的目标BWP来说,其它TRP用于发送PDCCH信息的CORESET的位置并不同,导致终端在切换后的目标BWP上无法接收到该PDCCH信息。
二,终端可以接收到其它TRP发送的PDCCH信息,但PDCCH信息指示的频域资源是根据切换前的BWP来指示的,与切换后的目标BWP的频域资源不匹配,若终端根据该PDCCH信息在切换后的目标BWP上占用PDSCH资源,而该PDSCH资源实质上是配置给其它终端的,则会导致误差和干扰;同理,若终端根据该PDCCH信息在切换后的目标BWP上占用PUSCH资源,而该PUSCH 资源实质上是配置给其它终端的,同样会导致误差和干扰。
在定时器结束之后,终端保持与主TRP进行通信,并根据n个TRP中的其它TRP发送的PDCCH信息中分配的资源,与其它TRP进行通信。
在定时器结束之后,终端在与主TRP进行通信的同时,可以监听其它TRP是否发送了PDCCH信息,若其它TRP发送了PDCCH信息,则终端可以同时根据其它TRP发送的PDCCH信息,在该PDCCH信息中分配的资源上,与其它TRP进行通信。
综上所述,本公开实施例提供的技术方案,通过设置定时器,使得终端在切换到目标BWP之后,在定时器结束之前只与主TRP进行通信;在定时器结束之后,在与主TRP保持通信的同时,还可以与其它TRP进行通信,从而避免了多个TRP与终端通信的场景下造成的干扰和误差。
需要说明的一点是,在上述方法实施例中,有些内容从终端和基站交互的角度,对本公开技术方案进行了介绍说明,上述有关基站侧执行的步骤,可以单独实现成为基站侧的BWP切换方法,上述有关终端侧执行的步骤,可以单独实现成为终端侧的BWP切换方法。
下述为本公开装置实施例,可以用于执行本公开方法实施例。对于本公开装置实施例中未披露的细节,请参照本公开方法实施例。
图3是根据一示例性实施例示出的一种BWP切换装置的框图。该装置具有实现上述基站侧方法示例的功能,所述功能可以通过硬件实现,也可以通过硬件执行相应的软件实现。该装置可以是上文介绍的基站,也可以设置在基站中。如图3所示,该装置300可以包括:配置信息发送模块310和切换信息发送模块320。
配置信息发送模块310,被配置为发送TRP配置信息,所述TRP配置信息用于指示所述基站配置的主TRP,所述主TRP是所述基站配置的n个TRP中的一个TRP,所述n为大于1的整数。
切换信息发送模块320,被配置为通过所述主TRP发送BWP切换信息,所述BWP切换信息用于指示切换至目标BWP。
综上所述,本公开实施例提供的技术方案中,通过基站向终端发送TRP配置信息,以便终端根据该TRP配置信息确定主TRP,进一步,基站通过该主TRP 向终端发送BWP切换信息,以指示终端将BWP切换至目标BWP,实现了在多个TRP与终端通信的场景下,终端根据主TRP指示的BWP来进行BWP切换,从而提供了一种多TRP场景下的BWP切换方案,确保了BWP切换的准确性,实现终端与基站之间的可靠传输。
在示例性实施例中,所述TRP配置信息包括各个所述TRP的标识信息;其中,所述标识信息最小的TRP为所述主TRP,或者,标识信息最大的TRP为所述主TRP。
在示例性实施例中,所述TRP配置信息包括各个所述TRP的CORESET编号和/或CORESET集合编号;其中,所述CORESET编号和/或CORESET集合编号最小的TRP为所述主TRP,或者,所述CORESET编号和/或CORESET集合编号最大的TRP为所述主TRP。
在示例性实施例中,所述TRP配置信息通过RRC信令和/或MAC信令发送给所述终端。
在示例性实施例中,所述主TRP还用于在发送所述BWP切换信息之后,向所述n个TRP中除所述主TRP之外的其它TRP发送BWP切换通知,所述BWP切换通知用于向所述其它TRP通知终端已切换至所述目标BWP;所述其它TRP用于在所述目标BWP上为所述终端分配资源。
在示例性实施例中,在发送所述TRP配置信息之后的目标时段内,所述n个TRP中除所述主TRP之外的其它TRP不给终端分配资源。
图4是根据另一示例性实施例示出的一种BWP切换装置的框图。该装置具有实现上述终端侧方法示例的功能,所述功能可以通过硬件实现,也可以通过硬件执行相应的软件实现。该装置可以是上文介绍的终端,也可以设置在终端中。如图4所示,该装置400可以包括:配置信息接收模块410、主TRP确定模块420、切换信息接收模块430和BWP切换模块440。
配置信息接收模块410,被配置为接收TRP配置信息。
主TRP确定模块420,被配置为根据所述TRP配置信息确定主TRP,所述主TRP是配置给所述终端的n个TRP中的一个TRP,所述n为大于1的整数。
切换信息接收模块430,被配置为接收所述主TRP发送的BWP切换信息,所述BWP切换信息用于指示所述终端切换至目标BWP。
BWP切换模块440,被配置为所述终端根据所述BWP切换信息切换至所述 目标BWP。
综上所述,本公开实施例提供的技术方案中,通过基站向终端发送TRP配置信息,以便终端根据该TRP配置信息确定主TRP,进一步,基站通过该主TRP向终端发送BWP切换信息,以指示终端将BWP切换至目标BWP,实现了在多个TRP与终端通信的场景下,终端根据主TRP指示的BWP来进行BWP切换,从而提供了一种多TRP场景下的BWP切换方案,确保了BWP切换的准确性,实现终端与基站之间的可靠传输。
在示例性实施例中,所述TRP配置信息包括各个所述TRP的标识信息;
所述主TRP确定模块420,被配置为将所述标识信息最小的TRP确定为所述主TRP,或者,将所述标识信息最大的TRP确定为所述主TRP。
在示例性实施例中,所述TRP配置信息包括各个所述TRP的CORESET编号和/或CORESET集合编号;
所述主TRP确定模块420,被配置为将所述CORESET编号和/或CORESET集合编号最小的TRP确定为所述主TRP,或者,将所述CORESET编号和/或CORESET集合编号最大的TRP确定为所述主TRP。
在示例性实施例中,结合参考图5,所述装置还包括:定时器启动模块450。
定时器启动模块450,被配置为在切换至所述目标BWP时,启动定时器;
其中,所述终端在所述定时器结束之前,仅根据所述主TRP发送的PDCCH信息中分配的资源与所述主TRP进行通信。
在示例性实施例中,结合参考图5,所述装置还包括:通信模块460。
通信模块460,被配置为在所述定时器结束之后,保持与所述主TRP进行通信,并根据所述n个TRP中的其它TRP发送的PDCCH信息中分配的资源,与所述其它TRP进行通信。
在示例性实施例中,所述定时器的值预先写入到所述终端的芯片中,和/或,由基站配置给所述终端。
需要说明的一点是,上述实施例提供的装置在实现其功能时,仅以上述各个功能模块的划分进行举例说明,实际应用中,可以根据实际需要而将上述功能分配由不同的功能模块完成,即将设备的内容结构划分成不同的功能模块,以完成以上描述的全部或者部分功能。
关于上述实施例中的装置,其中各个模块执行操作的具体方式已经在有关 该方法的实施例中进行了详细描述,此处将不做详细阐述说明。
本公开另一示例性实施例还提供了一种BWP切换装置,该装置可应用于上文介绍的基站中,能够实现本公开提供基站侧的BWP切换方法。该装置可以包括:处理器,以及用于存储处理器的可执行指令的存储器。其中,处理器被配置为:
发送TRP配置信息,所述TRP配置信息用于指示所述基站配置的主TRP,所述主TRP是所述基站配置的n个TRP中的一个TRP,所述n为大于1的整数;
通过所述主TRP发送BWP切换信息,所述BWP切换信息用于指示切换至目标BWP。
在示例性实施例中,所述TRP配置信息包括各个所述TRP的标识信息;其中,所述标识信息最小的TRP为所述主TRP,或者,所述标识信息最大的TRP为所述主TRP。
在示例性实施例中,所述TRP配置信息包括各个所述TRP的CORESET编号和/或CORESET集合编号;其中,所述CORESET编号和/或CORESET集合编号最小的TRP为所述主TRP,或者,所述CORESET编号和/或CORESET集合编号最大的TRP为所述主TRP。
在示例性实施例中,所述TRP配置信息通过RRC信令和/或MAC信令发送给所述终端。
在示例性实施例中,所述主TRP还用于在发送所述BWP切换信息之后,向所述n个TRP中除所述主TRP之外的其它TRP发送BWP切换通知,所述BWP切换通知用于向所述其它TRP通知终端已切换至所述目标BWP;所述其它TRP用于在所述目标BWP上为所述终端分配资源。
在示例性实施例中,在发送所述TRP配置信息之后的目标时段内,所述n个TRP中除所述主TRP之外的其它TRP不给终端分配资源。
本公开又一示例性实施例还提供了一种BWP切换装置,该装置可应用于上文介绍的终端中,能够实现本公开提供终端侧的BWP切换方法。该装置可以包括:处理器,以及用于存储处理器的可执行指令的存储器。其中,处理器被配置为:
接收TRP配置信息;
根据所述TRP配置信息确定主TRP,所述主TRP是配置给所述终端的n个TRP中的一个TRP,所述n为大于1的整数;
接收所述主TRP发送的BWP切换信息,所述BWP切换信息用于指示所述终端切换至目标BWP;
根据所述BWP切换信息切换至所述目标BWP。
在示例性实施例中,所述TRP配置信息包括各个所述TRP的标识信息;
所述处理器被配置为将所述标识信息最小的TRP确定为所述主TRP,或者,将所述标识信息最大的TRP确定为所述主TRP。
在示例性实施例中,所述TRP配置信息包括各个所述TRP的CORESET编号和/或CORESET集合编号;
所述处理器被配置为将所述CORESET编号和/或CORESET集合编号最小的TRP确定为所述主TRP,或者,将所述CORESET编号和/或CORESET集合编号最大的TRP确定为所述主TRP。
在示例性实施例中,所述处理器还被配置为在切换至所述目标BWP时,启动定时器;其中,所述终端在所述定时器结束之前,仅根据所述主TRP发送的PDCCH信息中分配的资源与所述主TRP进行通信。
在示例性实施例中,所述处理器还被配置为在所述定时器结束之后,保持与所述主TRP进行通信,并根据所述n个TRP中的其它TRP发送的PDCCH信息中分配的资源,与所述其它TRP进行通信。
在示例性实施例中,所述定时器的值预先写入到所述终端的芯片中,和/或,由基站配置给所述终端。
上述主要从基站和终端的角度,对本公开实施例提供的方案进行了介绍。可以理解的是,基站和终端为了实现上述功能,其包含了执行各个功能相应的硬件结构和/或软件模块。结合本公开中所公开的实施例描述的各示例的单元及算法步骤,本公开实施例能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行,取决于技术方案的特定应用和设计约束条件。本领域技术人员可以对每个特定的应用来使用不同的方法来实现所描述的功能,但是这种实现不应认为超出本公开实施例的技术方案的范围。
图6是根据一示例性实施例示出的一种基站的结构示意图。
基站600包括发射器/接收器601和处理器602。其中,处理器602也可以为控制器,图6中表示为“控制器/处理器602”。所述发射器/接收器601用于支持基站与上述实施例中的所述终端之间收发信息,以及支持所述基站与其它网络实体之间进行通信。所述处理器602执行各种用于与终端通信的功能。在上行链路,来自所述终端的上行链路信号经由天线接收,由接收器601进行解调(例如将高频信号解调为基带信号),并进一步由处理器602进行处理来恢复终端所发送到业务数据和信令信息。在下行链路上,业务数据和信令消息由处理器602进行处理,并由发射器601进行调制(例如将基带信号调制为高频信号)来产生下行链路信号,并经由天线发射给终端。需要说明的是,上述解调或调制的功能也可以由处理器602完成。例如,处理器602还用于执行上述方法实施例中基站侧的各个步骤,和/或本公开实施例所描述的技术方案的其它步骤。
进一步的,基站600还可以包括存储器603,存储器603用于存储基站600的程序代码和数据。此外,基站还可以包括通信单元604。通信单元604用于支持基站与其它网络实体(例如核心网中的网络设备等)进行通信。例如,在5G NR***中,该通信单元604可以是NG-U接口,用于支持基站与UPF(User Plane Function,用户平面功能)实体进行通信;或者,该通信单元604也可以是NG-C接口,用于支持接入AMF(Access and Mobility Management Function接入和移动性管理功能)实体进行通信。
可以理解的是,图6仅仅示出了基站600的简化设计。在实际应用中,基站600可以包含任意数量的发射器,接收器,处理器,控制器,存储器,通信单元等,而所有可以实现本公开实施例的基站都在本公开实施例的保护范围之内。
图7是根据一示例性实施例示出的一种终端的结构示意图。
所述终端700包括发射器701,接收器702和处理器703。其中,处理器703也可以为控制器,图7中表示为“控制器/处理器703”。可选的,所述终端700还可以包括调制解调处理器705,其中,调制解调处理器705可以包括编码器706、调制器707、解码器708和解调器709。
在一个示例中,发射器701调节(例如,模拟转换、滤波、放大和上变频等)该输出采样并生成上行链路信号,该上行链路信号经由天线发射给基站。 在下行链路上,天线接收基站发射的下行链路信号。接收器702调节(例如,滤波、放大、下变频以及数字化等)从天线接收的信号并提供输入采样。在调制解调处理器705中,编码器706接收要在上行链路上发送的业务数据和信令消息,并对业务数据和信令消息进行处理(例如,格式化、编码和交织)。调制器707进一步处理(例如,符号映射和调制)编码后的业务数据和信令消息并提供输出采样。解调器709处理(例如,解调)该输入采样并提供符号估计。解码器708处理(例如,解交织和解码)该符号估计并提供发送给终端700的已解码的数据和信令消息。编码器706、调制器707、解调器709和解码器708可以由合成的调制解调处理器705来实现。这些单元根据无线接入网采用的无线接入技术(例如,5G NR及其他演进***的接入技术)来进行处理。需要说明的是,当终端700不包括调制解调处理器705时,调制解调处理器705的上述功能也可以由处理器703完成。
处理器703对终端700的动作进行控制管理,用于执行上述本公开实施例中由终端700进行的处理过程。例如,处理器703还用于执行上述方法实施例中的终端侧的各个步骤,和/或本公开实施例所描述的技术方案的其它步骤。
进一步的,终端700还可以包括存储器704,存储器704用于存储用于终端700的程序代码和数据。
可以理解的是,图7仅仅示出了终端700的简化设计。在实际应用中,终端700可以包含任意数量的发射器,接收器,处理器,调制解调处理器,存储器等,而所有可以实现本公开实施例的终端都在本公开实施例的保护范围之内。
本公开实施例还提供了一种非临时性计算机可读存储介质,其上存储有计算机程序,所述计算机程序被基站的处理器执行时实现上述基站侧的BWP切换方法。
本公开实施例还提供了一种非临时性计算机可读存储介质,其上存储有计算机程序,所述计算机程序被终端的处理器执行时实现上述终端侧的BWP切换方法。
应当理解的是,在本文中提及的“多个”是指两个或两个以上。“和/或”,描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。字符“/”一般表示前后 关联对象是一种“或”的关系。
本领域技术人员在考虑说明书及实践这里公开的发明后,将容易想到本公开的其它实施方案。本公开旨在涵盖本公开的任何变型、用途或者适应性变化,这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的,本公开的真正范围和精神由下面的权利要求指出。
应当理解的是,本公开并不局限于上面已经描述并在附图中示出的精确结构,并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求来限制。

Claims (20)

  1. 一种BWP切换方法,其特征在于,所述方法包括:
    基站发送传输接收点TRP配置信息,所述TRP配置信息用于指示所述基站配置的主TRP,所述主TRP是所述基站配置的n个TRP中的一个TRP,所述n为大于1的整数;
    所述基站通过所述主TRP发送BWP切换信息,所述BWP切换信息用于指示切换至目标BWP。
  2. 根据权利要求1所述的方法,其特征在于,所述TRP配置信息包括各个所述TRP的标识信息;
    其中,所述标识信息最小的TRP为所述主TRP,或者,所述标识信息最大的TRP为所述主TRP。
  3. 根据权利要求1所述的方法,其特征在于,所述TRP配置信息包括各个所述TRP的控制资源集合CORESET编号和/或CORESET集合编号;
    其中,所述CORESET编号和/或CORESET集合编号最小的TRP为所述主TRP,或者,所述CORESET编号和/或CORESET集合编号最大的TRP为所述主TRP。
  4. 根据权利要求1至3任一项所述的方法,其特征在于,
    所述主TRP还用于在发送所述BWP切换信息之后,向所述n个TRP中除所述主TRP之外的其它TRP发送BWP切换通知,所述BWP切换通知用于向所述其它TRP通知终端已切换至所述目标BWP;
    所述其它TRP用于在所述目标BWP上为所述终端分配资源。
  5. 根据权利要求1至3任一项所述的方法,其特征在于,
    在发送所述TRP配置信息之后的目标时段内,所述n个TRP中除所述主TRP之外的其它TRP不给终端分配资源。
  6. 一种BWP切换方法,其特征在于,所述方法包括:
    终端接收传输接收点TRP配置信息;
    所述终端根据所述TRP配置信息确定主TRP,所述主TRP是配置给所述终端的n个TRP中的一个TRP,所述n为大于1的整数;
    所述终端接收所述主TRP发送的BWP切换信息,所述BWP切换信息用于指示所述终端切换至目标BWP;
    所述终端根据所述BWP切换信息切换至所述目标BWP。
  7. 根据权利要求6所述的方法,其特征在于,所述TRP配置信息包括各个所述TRP的标识信息;
    所述终端根据所述TRP配置信息确定所述主TRP,包括:
    所述终端将所述标识信息最小的TRP确定为所述主TRP;
    或者,
    所述终端将所述标识信息最大的TRP确定为所述主TRP。
  8. 根据权利要求6所述的方法,其特征在于,所述TRP配置信息包括各个所述TRP的控制资源集合CORESET编号和/或CORESET集合编号;
    所述终端根据所述TRP配置信息确定所述主TRP,包括:
    所述终端将所述CORESET编号和/或CORESET集合编号最小的TRP确定为所述主TRP;
    或者,
    所述终端将所述CORESET编号和/或CORESET集合编号最大的TRP确定为所述主TRP。
  9. 根据权利要求6至8任一项所述的方法,其特征在于,所述方法还包括:
    在切换至所述目标BWP时,所述终端启动定时器;
    其中,所述终端在所述定时器结束之前,仅根据所述主TRP发送的物理下行控制信道PDCCH信息中分配的资源与所述主TRP进行通信。
  10. 根据权利要求9所述的方法,其特征在于,所述方法还包括:
    在所述定时器结束之后,所述终端保持与所述主TRP进行通信,并根据所 述n个TRP中的其它TRP发送的PDCCH信息中分配的资源,与所述其它TRP进行通信。
  11. 根据权利要求9所述的方法,其特征在于,所述定时器的值预先写入到所述终端的芯片中,和/或,由基站配置给所述终端。
  12. 一种BWP切换装置,其特征在于,应用于基站中,所述装置包括:
    配置信息发送模块,被配置为发送传输接收点TRP配置信息,所述TRP配置信息用于指示所述基站配置的主TRP,所述主TRP是所述基站配置的n个TRP中的一个TRP,所述n为大于1的整数;
    切换信息发送模块,被配置为通过所述主TRP发送BWP切换信息,所述BWP切换信息用于指示切换至目标BWP。
  13. 一种BWP切换装置,其特征在于,应用于终端中,所述装置包括:
    配置信息接收模块,被配置为接收传输接收点TRP配置信息;
    主TRP确定模块,被配置为根据所述TRP配置信息确定主TRP,所述主TRP是配置给所述终端的n个TRP中的一个TRP,所述n为大于1的整数;
    切换信息接收模块,被配置为接收所述主TRP发送的BWP切换信息,所述BWP切换信息用于指示所述终端切换至目标BWP;
    BWP切换模块,被配置为所述终端根据所述BWP切换信息切换至所述目标BWP。
  14. 根据权利要求13所述的装置,其特征在于,所述TRP配置信息包括各个所述TRP的标识信息;
    所述主TRP确定模块,被配置为将所述标识信息最小的TRP确定为所述主TRP;或者,将所述标识信息最大的TRP确定为所述主TRP。
  15. 根据权利要求13所述的装置,其特征在于,所述TRP配置信息包括各个所述TRP的控制资源集合CORESET编号和/或CORESET集合编号;
    所述主TRP确定模块,被配置为将所述CORESET编号和/或CORESET集 合编号最小的TRP确定为所述主TRP;或者,将所述CORESET编号和/或CORESET集合编号最大的TRP确定为所述主TRP。
  16. 根据权利要求13至15任一项所述的装置,其特征在于,所述装置还包括:
    定时器启动模块,被配置为在切换至所述目标BWP时,启动定时器;
    其中,所述终端在所述定时器结束之前,仅根据所述主TRP发送的物理下行控制信道PDCCH信息中分配的资源与所述主TRP进行通信。
  17. 根据权利要求16所述的装置,其特征在于,所述装置还包括:
    通信模块,被配置为在所述定时器结束之后,保持与所述主TRP进行通信,并根据所述n个TRP中的其它TRP发送的PDCCH信息中分配的资源,与所述其它TRP进行通信。
  18. 一种BWP切换装置,其特征在于,应用于基站中,所述装置包括:
    处理器;
    用于存储所述处理器的可执行指令的存储器;
    其中,所述处理器被配置为:
    发送传输接收点TRP配置信息,所述TRP配置信息用于指示所述基站配置的主TRP,所述主TRP是所述基站配置的n个TRP中的一个TRP,所述n为大于1的整数;
    通过所述主TRP发送BWP切换信息,所述BWP切换信息用于指示切换至目标BWP。
  19. 一种BWP切换装置,其特征在于,应用于终端中,所述装置包括:
    处理器;
    用于存储所述处理器的可执行指令的存储器;
    其中,所述处理器被配置为:
    接收传输接收点TRP配置信息;
    根据所述TRP配置信息确定主TRP,所述主TRP是配置给所述终端的n个 TRP中的一个TRP,所述n为大于1的整数;
    接收所述主TRP发送的BWP切换信息,所述BWP切换信息用于指示所述终端切换至目标BWP;
    根据所述BWP切换信息切换至所述目标BWP。
  20. 一种非临时性计算机可读存储介质,其上存储有计算机程序,其特征在于,所述计算机程序被处理器执行时实现如权利要求1至5任一项所述方法的步骤,或者实现如权利要求6至11任一项所述方法的步骤。
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