WO2024016293A1 - Procédé de commutation de partie de bande passante (bwp), appareil, dispositif de communication et support de stockage - Google Patents

Procédé de commutation de partie de bande passante (bwp), appareil, dispositif de communication et support de stockage Download PDF

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Publication number
WO2024016293A1
WO2024016293A1 PCT/CN2022/107209 CN2022107209W WO2024016293A1 WO 2024016293 A1 WO2024016293 A1 WO 2024016293A1 CN 2022107209 W CN2022107209 W CN 2022107209W WO 2024016293 A1 WO2024016293 A1 WO 2024016293A1
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Prior art keywords
downlink bwp
terminal
bwp
type
type terminal
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PCT/CN2022/107209
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English (en)
Chinese (zh)
Inventor
李艳华
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北京小米移动软件有限公司
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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 PCT/CN2022/107209 priority Critical patent/WO2024016293A1/fr
Priority to CN202280002761.3A priority patent/CN117751662A/zh
Publication of WO2024016293A1 publication Critical patent/WO2024016293A1/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 present disclosure relates to the field of wireless communication technology but is not limited to the field of wireless communication technology, and in particular, to a bandwidth partial BWP switching method and device, communication equipment and storage media.
  • terminals can work based on the bandwidth part (Bandwidth Part, BWP). That is, the terminal does not need to monitor the entire bandwidth, but needs to monitor a specific BWP and send and receive data on the specific BWP.
  • BWP Bandwidth Part
  • Redcap reduced capability
  • NR-lite light
  • Redcap terminal a new terminal type is proposed, namely reduced capability (Redcap) UE, which can also be called light (NR-lite) or Redcap terminal.
  • Embodiments of the present disclosure provide a bandwidth partial BWP switching method and device, communication equipment, and storage media.
  • a bandwidth partial BWP switching method is provided, wherein the method is executed by a first type of terminal, and the method includes:
  • the first type terminal is configured with an inactivity timer (Inactivity Timer)
  • Inactivity Timer Inactivity Timer
  • determining whether the first-type terminal falls back to the target downlink BWP or remains at the currently activated downlink BWP according to whether the first-type terminal is configured with an inactivation timer includes at least one of the following:
  • the first type terminal When the first type terminal is configured with the inactivation timer and the target downlink BWP, determine to fall back to the target downlink BWP when the inactivation timer times out;
  • the first type terminal When the first type terminal is configured with the inactivation timer and the target downlink BWP is not configured, it is determined to maintain the currently activated downlink BWP.
  • the target downlink BWP has multiple candidate downlink BWPs; different candidate downlink BWPs have different priorities;
  • Determining to fall back to the target downlink BWP when the inactivation timer times out when the first type terminal is configured with the inactivation timer and the target downlink BWP includes:
  • the inactivation timer When the first type of terminal is configured with the inactivation timer and it is determined that the candidate downlink BWP of the first priority is not configured and the candidate downlink BWP of the second priority is configured, it is determined that the inactivation timer is configured. When the timer times out, fall back to the alternative downlink BWP of the second priority;
  • the inactivation timer When the first type of terminal is configured with the inactivation timer, and when it is determined that an alternative downlink BWP of the first priority is configured and an alternative downlink BWP of the second priority is configured, it is determined that the inactivation timer When the server times out, it falls back to the alternative downlink BWP of the first priority level;
  • the first priority is higher than the second priority.
  • the candidate downlink BWPs of the target downlink BWP include:
  • the initial downlink BWP includes at least one of the following:
  • the initial downlink BWP of the first type of terminal
  • the initial downlink BWP of the second type of terminal where the bandwidth supported by the second type of terminal is greater than the bandwidth supported by the first type of terminal;
  • the initial downlink BWP of a third type terminal where the bandwidth supported by the third type terminal is greater than the bandwidth supported by the second type terminal.
  • the priority of the candidate downlink BWP includes at least one of the following:
  • the priority of the default downlink BWP is higher than the priority of the initial downlink BWP of the first type terminal
  • the priority of the initial downlink BWP of the first type terminal is higher than the priority of the initial downlink BWP of the second type terminal;
  • the priority of the initial downlink BWP of the second type terminal is higher than the priority of the initial downlink BWP of the third type terminal.
  • the configuration information used to configure the initial downlink BWP of the first type of terminal is carried in a system information block.
  • the initial downlink BWP includes at least one of the following:
  • the target downlink BWP is:
  • the initial downlink BWP to receive the paging message is selected based on the preset selection rules.
  • the preset selection rules include:
  • the initial downlink BWP of the received paging message corresponding to the label is selected as the target downlink BWP.
  • the restart conditions of the inactivation timer include:
  • the number of data schedules received by the first type terminal reaches a predetermined number of times ;
  • the number of data schedules received by the first type terminal reaches a predetermined number.
  • a bandwidth partial BWP configuration method is provided, wherein the method is executed by a network device, and the method includes:
  • the type of the target terminal it is determined whether to configure an inactivation timer for the target terminal, where the inactivation timer is used for the target terminal to fall back to the target downlink BWP.
  • determining whether to configure an inactivation timer for the target terminal according to the type of the target terminal includes:
  • the target terminal is a first type terminal, determine not to configure the inactivation timer for the target terminal;
  • the target terminal When the target terminal is not a terminal of the first type, it is determined to configure the inactivation timer for the target terminal.
  • a bandwidth part BWP determination method is provided, wherein the method is executed by a network device, and the method includes:
  • determining the downlink BWP currently operating by the first-type terminal according to whether the first-type terminal is configured with an inactivation timer includes at least one of the following:
  • the first type terminal When the first type terminal is configured with the inactivation timer and is configured with a target downlink BWP, determine that the first type terminal falls back to the target downlink BWP when the inactivation timer expires;
  • the first type terminal When the first type terminal is configured with the inactivation timer and the target downlink BWP is not configured, it is determined that the first type terminal remains at the currently activated downlink BWP.
  • the target downlink BWP has multiple candidate downlink BWPs; different candidate downlink BWPs have different priorities;
  • the first type terminal When the first type terminal is configured with the inactivation timer and it is determined that the first priority candidate downlink BWP is not configured and the second priority candidate downlink BWP is configured, it is determined that the first type terminal is configured with the inactivation timer. The terminal falls back to the alternative downlink BWP of the second priority when the inactivation timer expires;
  • the first type terminal when it is determined that the first priority candidate downlink BWP is configured and the second priority candidate downlink BWP is configured, it is determined that the first type terminal Fall back to the alternative downlink BWP of the first priority level when the inactivation timer expires;
  • the first priority is higher than the second priority.
  • the candidate downlink BWPs of the target downlink BWP include:
  • the initial downlink BWP includes at least one of the following:
  • the initial downlink BWP of the first type of terminal
  • the initial downlink BWP of the second type of terminal where the bandwidth supported by the second type of terminal is greater than the bandwidth supported by the first type of terminal;
  • the initial downlink BWP of a third type terminal where the bandwidth supported by the third type terminal is greater than the bandwidth supported by the second type terminal.
  • the priority of the candidate downlink BWP includes at least one of the following:
  • the priority of the default downlink BWP is higher than the priority of the initial downlink BWP of the first type terminal
  • the priority of the initial downlink BWP of the first type terminal is higher than the priority of the initial downlink BWP of the second type terminal;
  • the priority of the initial downlink BWP of the second type terminal is higher than the priority of the initial downlink BWP of the third type terminal.
  • the configuration information used to configure the initial downlink BWP of the first type of terminal is carried in a system information block.
  • the initial downlink BWP includes at least one of the following:
  • the target downlink BWP is:
  • the initial downlink BWP to receive the paging message is selected based on the preset selection rules.
  • the preset selection rules include:
  • the initial downlink BWP of the received paging message corresponding to the label is selected as the target downlink BWP.
  • the restart conditions of the inactivation timer include:
  • the number of data schedules received by the first type terminal reaches a predetermined number of times ;
  • the number of data schedules received by the first type terminal reaches a predetermined number.
  • a bandwidth partial BWP switching device wherein, applied to a first type of terminal, the device includes:
  • the first determination module is configured to determine whether the first type terminal is configured with an inactivation timer and determines whether the first type terminal falls back to the target downlink BWP or remains at the currently activated downlink BWP.
  • the first determining module is configured to:
  • the first type terminal When the first type terminal is configured with the inactivation timer and the target downlink BWP, determine to fall back to the target downlink BWP when the inactivation timer times out;
  • the first type terminal When the first type terminal is configured with the inactivation timer and the target downlink BWP is not configured, it is determined to maintain the currently activated downlink BWP.
  • the target downlink BWP has multiple candidate downlink BWPs; different candidate downlink BWPs have different priorities;
  • the first determination module is configured as:
  • the inactivation timer When the first type of terminal is configured with the inactivation timer and it is determined that the candidate downlink BWP of the first priority is not configured and the candidate downlink BWP of the second priority is configured, it is determined that the inactivation timer is configured. When the timer times out, fall back to the alternative downlink BWP of the second priority;
  • the server When the first type of terminal is configured with the inactivation timer, and when it is determined that the candidate downlink BWP of the first priority is configured and the candidate downlink BWP of the second priority is configured, it is determined that the inactivation timer is configured. When the server times out, it falls back to the alternative downlink BWP of the first priority level;
  • the first priority is higher than the second priority.
  • the candidate downlink BWPs of the target downlink BWP include:
  • the initial downlink BWP includes at least one of the following:
  • the initial downlink BWP of the first type of terminal
  • the initial downlink BWP of the second type of terminal where the bandwidth supported by the second type of terminal is greater than the bandwidth supported by the first type of terminal;
  • the initial downlink BWP of a third type terminal where the bandwidth supported by the third type terminal is greater than the bandwidth supported by the second type terminal.
  • the priority of the candidate downlink BWP includes at least one of the following:
  • the priority of the default downlink BWP is higher than the priority of the initial downlink BWP of the first type terminal
  • the priority of the initial downlink BWP of the first type terminal is higher than the priority of the initial downlink BWP of the second type terminal;
  • the priority of the initial downlink BWP of the second type terminal is higher than the priority of the initial downlink BWP of the third type terminal.
  • the configuration information used to configure the initial downlink BWP of the first type of terminal is carried in a system information block.
  • the initial downlink BWP includes at least one of the following:
  • the target downlink BWP is:
  • the initial downlink BWP to receive the paging message is selected based on the preset selection rules.
  • the preset selection rules include:
  • the initial downlink BWP of the received paging message corresponding to the label is selected as the target downlink BWP.
  • the restart conditions of the inactivation timer include:
  • the number of data schedules received by the first type terminal reaches a predetermined number of times ;
  • the number of data schedules received by the first type terminal reaches a predetermined number.
  • a bandwidth partial BWP configuration device wherein, applied to network equipment, the device includes:
  • the second determination module is configured to determine whether to configure an inactivation timer for the target terminal according to the type of the target terminal, where the inactivation timer is used for the target terminal to fall back to the target downlink BWP.
  • the second determining module is configured to:
  • the target terminal is a first type terminal, determine not to configure the inactivation timer for the target terminal;
  • the target terminal When the target terminal is not a terminal of the first type, it is determined to configure the inactivation timer for the target terminal.
  • an apparatus for determining a bandwidth part BWP wherein, applied to network equipment, the apparatus includes:
  • the third determination module is configured to determine the downlink BWP currently working by the first type terminal according to whether the first type terminal is configured with an inactivation timer; wherein the downlink BWP currently working by the first type terminal is used for For the network device to send downlink information.
  • the third determining module is configured as:
  • the first type terminal When the first type terminal is configured with the inactivation timer and is configured with a target downlink BWP, determine that the first type terminal falls back to the target downlink BWP when the inactivation timer expires;
  • the first type terminal When the first type terminal is configured with the inactivation timer and the target downlink BWP is not configured, it is determined that the first type terminal remains at the currently activated downlink BWP.
  • the target downlink BWP has multiple candidate downlink BWPs; different candidate downlink BWPs have different priorities;
  • the third determination module is configured as:
  • the first type terminal When the first type terminal is configured with the inactivation timer and it is determined that the first priority candidate downlink BWP is not configured and the second priority candidate downlink BWP is configured, it is determined that the first type terminal is configured with the inactivation timer. The terminal falls back to the alternative downlink BWP of the second priority when the inactivation timer expires;
  • the first type terminal when it is determined that the first priority candidate downlink BWP is configured and the second priority candidate downlink BWP is configured, it is determined that the first type terminal Fall back to the alternative downlink BWP of the first priority level when the inactivation timer expires;
  • the first priority is higher than the second priority.
  • the candidate downlink BWPs of the target downlink BWP include:
  • the initial downlink BWP includes at least one of the following:
  • the initial downlink BWP of the first type of terminal
  • the initial downlink BWP of the second type of terminal where the bandwidth supported by the second type of terminal is greater than the bandwidth supported by the first type of terminal;
  • the initial downlink BWP of a third type terminal where the bandwidth supported by the third type terminal is greater than the bandwidth supported by the second type terminal.
  • the priority of the candidate downlink BWP includes at least one of the following:
  • the priority of the default downlink BWP is higher than the priority of the initial downlink BWP of the first type terminal
  • the priority of the initial downlink BWP of the first type terminal is higher than the priority of the initial downlink BWP of the second type terminal;
  • the priority of the initial downlink BWP of the second type terminal is higher than the priority of the initial downlink BWP of the third type terminal.
  • the configuration information used to configure the initial downlink BWP of the first type of terminal is carried in a system information block.
  • the initial downlink BWP includes at least one of the following:
  • the target downlink BWP is:
  • the initial downlink BWP to receive the paging message is selected based on the preset selection rules.
  • the preset selection rules include:
  • the initial downlink BWP of the received paging message corresponding to the label is selected as the target downlink BWP.
  • the restart conditions of the inactivation timer include:
  • the number of data schedules received by the first type terminal reaches a predetermined number of times ;
  • the number of data schedules received by the first type terminal reaches a predetermined number.
  • a communication device wherein the communication device includes:
  • memory for storing instructions executable by the processor
  • the processor is configured to implement the method described in the first aspect, the second aspect, or the third aspect when running the executable instructions.
  • a computer storage medium stores a computer executable program, and when the executable program is executed by a processor, the first aspect or the second aspect or the third aspect is implemented. methods described in three aspects.
  • the technical solution provided by the embodiments of the present disclosure determines whether the first-type terminal falls back to the target downlink BWP or remains at the currently activated downlink BWP based on whether the first-type terminal is configured with an inactivation timer. BWP, but not all terminals perform BWP fallback when certain conditions are met, thereby reducing unnecessary BPW fallback for first-type terminals and reducing power consumption caused by BWP fallback for first-type terminals.
  • Figure 1 is a schematic structural diagram of a wireless communication system according to an exemplary embodiment
  • Figure 2 is a schematic diagram of a BW solution for terminals with different bandwidths according to an exemplary embodiment
  • Figure 3 is a schematic flowchart of a BWP switching method according to an exemplary embodiment
  • Figure 4 is a schematic flowchart of a BWP configuration method according to an exemplary embodiment
  • Figure 5 is a schematic flowchart of a BWP determination method according to an exemplary embodiment
  • Figure 6 is a schematic structural diagram of a BWP switching device according to an exemplary embodiment
  • Figure 7 is a schematic structural diagram of a BWP configuration device according to an exemplary embodiment
  • Figure 8 is a schematic structural diagram of a BWP determination device according to an exemplary embodiment
  • Figure 9 is a schematic structural diagram of a UE according to an exemplary embodiment
  • Figure 10 is a schematic structural diagram of a network device according to an exemplary embodiment.
  • first, second, third, etc. may be used to describe various information in the embodiments of the present disclosure, the information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other.
  • first information may also be called second information, and similarly, the second information may also be called first information.
  • word “if” as used herein may be interpreted as "when” or "when” or "in response to determining.”
  • FIG. 1 shows a schematic structural diagram of a wireless communication system provided by an embodiment of the present disclosure.
  • the wireless communication system is a communication system based on cellular mobile communication technology.
  • the wireless communication system may include several terminals 11 and several network devices 12 .
  • the terminal 11 may be a device that provides voice and/or data connectivity to the user.
  • the terminal 11 can communicate with one or more core networks via a Radio Access Network (RAN).
  • RAN Radio Access Network
  • the terminal 11 can be an Internet of Things UE, such as a sensor device, a mobile phone (or "cellular" phone) and a device with
  • the computer of the IoT UE may, for example, be a fixed, portable, pocket-sized, handheld, computer-built-in or vehicle-mounted device.
  • the terminal 11 may be a device of an unmanned aerial vehicle.
  • the terminal 11 may also be a vehicle-mounted device, for example, it may be an on-board computer with a wireless communication function, or a wireless communication device connected to an external on-board computer.
  • the terminal 11 may also be a roadside device, for example, it may be a streetlight, a signal light or other roadside device with wireless communication function.
  • the network device 12 may be a device used to communicate with terminals in a wireless communication system.
  • the wireless communication system can be the 4th generation mobile communication technology (the 4th generation mobile communication, 4G) system, also known as the Long Term Evolution (LTE) system; or the wireless communication system can also be a 5G system, Also called new radio (NR) system or 5G NR system.
  • the wireless communication system may also be a next-generation system of the 5G system.
  • the access network in the 5G system can be called NG-RAN (New Generation-Radio Access Network). Or, MTC system.
  • the network device 12 may be called a wireless access network device, which may include, for example, an access network device, such as a base station (eg, access point), and may refer to a device in the access network that communicates with a terminal through one or more cells over the air interface.
  • an access network device such as a base station (eg, access point)
  • a base station eg, access point
  • the network device 12 may be an evolved access device (eNB) used in the 4G system.
  • the network device 12 may also be an access device (gNB) using a centralized distributed architecture in the 5G system.
  • eNB evolved access device
  • gNB access device
  • the network device 12 adopts a centralized distributed architecture it usually includes a centralized unit (central unit, CU) and at least two distributed units (distributed unit, DU).
  • the centralized unit is equipped with a protocol stack including the Packet Data Convergence Protocol (PDCP) layer, the Radio Link Control protocol (Radio Link Control, RLC) layer, and the Media Access Control (Media Access Control, MAC) layer; distributed
  • PDCP Packet Data Convergence Protocol
  • RLC Radio Link Control
  • MAC Media Access Control
  • the unit is provided with a physical (Physical, PHY) layer protocol stack, and the embodiment of the present disclosure does not limit the specific implementation of the network device 12.
  • a wireless connection can be established between the network device 12 and the terminal 11 through a wireless air interface.
  • the wireless air interface is a wireless air interface based on the fourth generation mobile communication network technology (4G) standard; or the wireless air interface is a wireless air interface based on the fifth generation mobile communication network technology (5G) standard, such as
  • the wireless air interface is a new air interface; alternatively, the wireless air interface may also be a wireless air interface based on the next generation mobile communication network technology standard of 5G.
  • an E2E (End to End, end-to-end) or D2D (device to device, terminal to terminal) connection can also be established between terminals 11.
  • V2V (vehicle to vehicle, vehicle to vehicle) communication V2I (vehicle to infrastructure, vehicle to roadside equipment) communication
  • V2P (vehicle to pedestrian, vehicle to person) communication in vehicle networking communication Vhicle to everything, V2X Wait for the scene.
  • vehicle-mounted terminal A reports its capability information (such as antenna capability information) to another vehicle-mounted terminal B, and vehicle-mounted terminal B controls the communication between vehicle-mounted terminal A and vehicle-mounted terminal B based on its capability information.
  • the vehicle-mounted terminal B acts as the leading vehicle in the vehicle network.
  • the vehicle-mounted terminal B can be regarded as the above-mentioned network device, and the vehicle-mounted terminal A can be regarded as the above-mentioned terminal 11.
  • the above-mentioned wireless communication system may also include a network management device 13.
  • the network management device 13 may be a core network device in a wireless communication system.
  • the network management device 13 may be a mobility management entity (Mobility Management Entity) in an evolved packet core network (Evolved Packet Core, EPC). MME).
  • the network management device can also be other core network devices, such as serving gateway (Serving GateWay, SGW), public data network gateway (Public Data Network GateWay, PGW), policy and charging rules functional unit (Policy and Charging Rules) Function, PCRF) or Home Subscriber Server (HSS), etc.
  • serving gateway Serving GateWay, SGW
  • public data network gateway Public Data Network GateWay, PGW
  • Policy and Charging Rules Policy and Charging Rules
  • PCRF Policy and Charging Rules
  • HSS Home Subscriber Server
  • Reduced capability UE In the current 3GPP standardization, a new terminal type called Reduced capability UE or simply NR-lite or Redcap terminal is proposed.
  • This type of equipment based on 5G NR-lite usually needs to meet the following requirements: (1) low cost and low complexity; (2) a certain degree of coverage enhancement; (3) power saving; (4) some terminals are 1RX and some are 2RX; (5) After the introduction of Redcap users of the 5G standard R18 version, its bandwidth (BandWidth, BW) has been further reduced.
  • FIG. 2 shows BW solutions with different bandwidths configured for the terminal, such as the BW1 or BW3 solution.
  • BW1 and BW3 configured for terminals have different bandwidths.
  • the data (Data) channel, control (Control) channel and radio frequency (Radio Frequency, RF) channel cannot exceed Transmission outside the 5MHz range.
  • the control channel and radio frequency channel cannot be transmitted beyond the range of 20MHz, and the data channel cannot be transmitted beyond the range of 5MHz.
  • a UE In the downlink direction, on each unit carrier, a UE can be configured with up to 4 BWPs, but there is only one active BWP at a certain time.
  • the activated BWP represents the working bandwidth used by the UE within the working bandwidth of the cell. Outside the BWP, the UE will not receive PDSCH (physical downlink shared channel, physical downlink shared channel), PDCCH (physical downlink control channel, physical downlink control channel) Or CSI-RS (channel-state information reference signal, channel state information reference signal), etc., but exceptions can be made if it is used for wireless resource-related measurements or sending SRS (Sounding Reference Signal, sounding reference signal).
  • PDSCH physical downlink shared channel, physical downlink shared channel
  • PDCCH physical downlink control channel
  • CSI-RS channel-state information reference signal, channel state information reference signal
  • eRedCap enhanced reduced capability terminals
  • the main scenarios are a large number of sensors and industrial sensors. Therefore, the number of terminals is relatively large, and the previous paging capacity of the network will not be enough to support the paging demand, so it is necessary to
  • the network is configured with multiple downlink paging initial BWPs. After the introduction of the eRedcap terminal, how to perform fallback needs to be reconsidered. For example, for the terminal working on BW1, because the current working bandwidth is already relatively small, it is not very meaningful to roll back.
  • FIG 3 is a schematic flowchart of a bandwidth partial BWP switching method according to an exemplary embodiment.
  • the bandwidth partial BWP switching method is executed by the terminal in the wireless communication system shown in Figure 1, and the terminal is a first type terminal.
  • the bandwidth partial BWP switching method may include:
  • Step 301 According to whether the first type terminal is configured with an inactivation timer, determine whether the first type terminal falls back to the target downlink BWP or remains at the currently activated downlink BWP.
  • the BWP switching method provided in this embodiment is executed by the first type of terminal.
  • the first type of terminal may be a terminal whose supported bandwidth is less than a preset threshold, or a specific type of terminal, or any terminal whose supported bandwidth is less than the bandwidth supported by the second type of terminal.
  • the first type of terminal may be an eRedCap terminal or the like.
  • the second type of terminal may include any terminal other than the first type of terminal.
  • the second type of terminal may be a RedCap terminal or enhanced mobile bandwidth (eMBB), etc.
  • the first type of terminal can work based on BWP.
  • a Type 1 terminal can be configured with multiple BWPs at the same time. However, the first type of terminal works on an activated BWP in a serving cell at the same time.
  • the inactivation timer and the BWP configured by the terminal may have a one-to-one correspondence and/or a one-to-many correspondence.
  • the inactivation timer includes: a BWP inactivation timer and/or a secondary cell (Scell) deactivation timer.
  • the network device can configure the inactivation timer used on each BWP for the first type terminal. If the first type of terminal is configured with an inactivation timer, it will automatically fall back from the currently activated BWP to the target downlink BWP when the inactivation timer times out.
  • the first type of terminal is not configured with an inactivation timer, it will remain at the currently activated downlink BWP. If the first type of terminal is not configured with an inactivation timer, the first type of terminal will not fall back to the operation of the target downlink BWP, thus At least reduce BWP fallback for Class 1 terminals configured with inactivation timers.
  • the target downlink BWP is the default downlink BWP of the first type of terminal.
  • the target downlink BWP when the first type of terminal is configured with a default downlink BWP, the target downlink BWP is the default downlink BWP.
  • the target downlink BWP can be the initial downlink BWP.
  • the initial downlink BWP is the downlink BWP configured by the network device for the terminal through system messages.
  • the default downlink BWP is a BWP with a smaller bandwidth specially set by the network device for the terminal based on power saving considerations.
  • the target downlink BWP can be a BWP with a bandwidth smaller than the currently activated BWP of the first type terminal. In this way, through BWP fallback, the number of BWPs monitored by the first type terminal can be reduced, thereby saving power consumption.
  • it may be determined according to the BWP configuration information of the first type terminal whether the first type terminal is configured with an inactivation timer that currently activates downlink BWP usage.
  • the first type of terminal may receive a BWP configuration message from the network device, where the BWP configuration message is used by the first type of terminal to configure an inactivation timer used by the BWP.
  • the first-type terminal determines whether the first-type terminal falls back to the target downlink BWP or remains at the currently activated downlink BWP based on whether the first-type terminal is configured with an inactivation timer.
  • Downlink BWP can reduce the power consumption of user equipment, and by keeping the currently activated downlink BWP, it can suppress unnecessary BWP switching when the bandwidth of the currently activated downlink BWP is narrow, achieving flexible switching of downlink BWP for the first type of terminal.
  • determining whether the first type terminal falls back to the target downlink BWP or remains at the currently activated downlink BWP according to whether the first type terminal is configured with an inactivation timer may include At least one of the following:
  • the first type terminal When the first type terminal is configured with the inactivation timer and the target downlink BWP, determine to fall back to the target downlink BWP when the inactivation timer times out;
  • the first type terminal When the first type terminal is configured with the inactivation timer and the target downlink BWP is not configured, it is determined to maintain the currently activated downlink BWP.
  • the first type of terminal if it is not configured with the inactivation timer, it will continue to maintain the currently activated downlink BWP, and execute the downlink BWP when receiving the BWP switching indication information (for example, DCI) sent by the network device. switch.
  • the BWP switching indication information instructs the first type terminal to activate the default downlink BWP and deactivate the currently activated downlink BWP.
  • the target downstream BWP can be the default downstream BWP or the initial downstream BWP.
  • the first type of terminal when the first type of terminal is configured with the inactivation timer, if the first type of terminal is configured with a default downlink BWP, the first type of terminal will fall back to the default downlink when the inactivation timer expires. BWP.
  • the first-type terminal When the first-type terminal is not configured with a default downlink BWP and is configured with an initial downlink BWP, the first-type terminal can fall back to the initial downlink BWP when the inactivation timer times out.
  • the first type of terminal if the first type of terminal is configured with the inactivation timer, the first type of terminal is not configured with a default downlink BWP and is not configured with an initial downlink BWP, the first type of terminal will be activated when the inactivation timer times out. Maintain the currently active downstream BWP.
  • the inactivation timer configured by the first type terminal is used to fall back to the default downlink BWP and is not used to fall back to the initial downlink BWP, when the first type terminal is not configured with the default downlink BWP , determine to maintain the currently activated downlink BWP when the inactivation timer times out.
  • the restart conditions of the inactivation timer only include the following:
  • the number of data schedules received by the first type terminal reaches a predetermined number of times Or receive an instruction to switch to the currently active downlink BWP.
  • the predetermined number of times can be set according to actual application needs.
  • the predetermined number of times can be set to one time.
  • the protocol stipulates that the first type of terminal (that is, the first type of user) can configure the BWP inactivation timer only if the default downlink BWP is configured; that is, if the default downlink BWP is not configured Then there is no need to configure the BWP inactivation timer.
  • the protocol stipulates that a default downlink BWP needs to be configured for the first type of terminal (ie, the first type of user).
  • the protocol stipulates that if a BWP inactivation timer is configured for the first type of user without configuring a default downlink BWP, the BWP inactivation timer will be invalidated.
  • the inactivation timer is used to fall back to the default downlink BWP and is not used to fall back to the initial downlink BWP, if the first type of terminal is not configured with a default downlink BWP, then no matter whether the first type of terminal is configured with an initial downlink BWP BWP, the first type of terminal will maintain the currently activated downlink BWP when the inactivation timer times out.
  • the method further includes at least one of the following:
  • the first type terminal When the first type terminal is configured with the inactivation timer, the first type terminal is configured with an initial downlink BWP and the default downlink BWP is not configured, it is determined that the target downlink is reached when the inactivation timer times out.
  • the BWP is the downlink BWP with smaller bandwidth among the initial downlink BWP and the currently activated downlink BWP.
  • the first type terminal if the first type terminal is configured with the inactivation timer, and the first type terminal is configured with an initial downlink BWP and the default downlink BWP is not configured, the first type terminal will respond to the initial downlink BWP.
  • the bandwidth of the downlink BWP is compared with the bandwidth of the currently activated downlink BWP, and when the inactivation timer times out, the downlink BWP with smaller bandwidth is operated.
  • BWPs there are multiple BWPs. Different candidate downlink BWPs have different priorities. When performing BWP fallback, you can fall back to the high-priority BWP according to the priority.
  • the first type of terminal when configured with the inactivation timer and the target downlink BWP, it is determined to fall back to the target downlink BWP when the inactivation timer expires.
  • the inactivation timer expires.
  • the first type terminal is configured with the inactivation timer, and when it is determined that the alternative downlink BWP of the first priority is not configured and the alternative downlink BWP of the second priority is configured, it is determined that the inactivation timer is configured. When the timer times out, fall back to the alternative downlink BWP of the second priority;
  • the first type terminal when the first type terminal is configured with the inactivation timer, and when it is determined that the first priority candidate downlink BWP is configured and the second priority candidate downlink BWP is configured, it is determined that the non-activation timer is configured.
  • the alternative downlink BWP falls back to the first priority level when the activation timer expires; wherein the first priority level is higher than the second priority level.
  • the priority of the candidate downstream BWP of the target downstream BWP can be used to determine whether the candidate downstream BWP can be prioritized as the target downstream BWP that falls back when the inactivation timer times out.
  • the network device can configure corresponding priorities for the downlink BWPs when configuring the downlink BWP for the terminal.
  • Each BWP corresponds to a priority, and the priorities corresponding to each BWP can be the same or different.
  • the priority of the candidate downlink BWP can be that the first type terminal sets the priority corresponding to each BWP according to the bandwidth of the BWP. The smaller the bandwidth of the BWP, the higher the priority corresponding to the BWP. It can also be the first type terminal. Set the priority corresponding to BWP according to the transmission quality of BWP.
  • the candidate downlink BWPs of the target downlink BWP include: a default downlink BWP or an initial downlink BWP.
  • the priority of the default downlink BWP is the first priority
  • the priority of the initial downlink BWP is the second priority
  • the first type of terminal when the first type of terminal is configured with an inactivation timer and a default downlink BWP, the first type of terminal will fall back to the default downlink BWP when the inactivation timer times out.
  • the first type terminal when the first type terminal is configured with an inactivation timer and it is determined that the default downlink BWP is not configured and the initial downlink BWP is configured, the first type terminal can fall back to the initial downlink BWP when the inactivation timer expires.
  • the initial downlink BWP includes at least one of the following:
  • the initial downlink BWP of the first type of terminal
  • the initial downlink BWP of the second type of terminal the bandwidth supported by the second type of terminal is greater than the bandwidth supported by the first type of terminal;
  • the initial downlink BWP of a third-type terminal is greater than the bandwidth supported by the second-type terminal.
  • the second type of terminal may include: RedCap terminal.
  • the third type of terminal may include: any terminal that supports a larger bandwidth than the second type of terminal.
  • the third type of terminal may include: enhanced mobile broadband (eMBB) terminal.
  • eMBB enhanced mobile broadband
  • the initial downlink BWP of the second type terminal and the initial downlink BWP of the third type terminal can be configured through a system information block.
  • the system information block can be, for example, System Information Block 1 (SIB1).
  • the priority of the candidate downlink BWP includes at least one of the following:
  • the priority of the default downlink BWP is higher than the priority of the initial downlink BWP of the first type terminal
  • the priority of the initial downlink BWP of the first type terminal is higher than the priority of the initial downlink BWP of the second type terminal;
  • the priority of the initial downlink BWP of the second type terminal is higher than the priority of the initial downlink BWP of the third type terminal.
  • the first type of terminal if the first type of terminal is configured with a default downlink BWP, the first type of terminal will fall back to the default downlink BWP when the inactivation timer times out. If the first type of terminal is not configured with a default downlink BWP and is configured with an initial downlink BWP, the first type of terminal will fall back to the initial downlink BWP when the inactivation timer times out. If the first type of terminal is not configured with a default downlink BWP and is not configured with an initial downlink BWP, the first type of terminal will fall back to the initial downlink BWP configured for the second type of terminal or the third type of terminal when the inactivation timer times out. Configured initial downlink BWP. Wherein, the initial downlink BWP configured for the second type of terminal has a higher priority than the initial downlink BWP configured for the third type of terminal.
  • the configuration information used to configure the initial downlink BWP of the first type of terminal is carried in a system information block.
  • the first type of terminal may configure the initial downlink BWP based on the initial downlink BWP configuration information carried in the system information block sent by the network device.
  • the configuration information of the initial downlink BWP of the first type terminal or the indication information of the configuration information may be carried in the system information block 1 (SIB1) or in the newly created SIB.
  • all or part of the reserved bits in SIB1 are used to represent the configuration information of the initial downlink BWP of the first type terminal or the indication information of the configuration information.
  • the indication information is used to notify the first type terminal in which system information message or SIB it can receive the initial downlink BWP configuration information of the first type terminal.
  • the newly created SIB is used to carry the configuration information of the initial downlink BWP of the first type terminal or the indication information of the configuration information.
  • the newly created SIB is such as SIB1-bis (System Information Block Type 1bis).
  • the initial downlink BWP includes at least one of the following:
  • the initial downstream BWP may have at least one of the following search spaces: a Random Access Response (RAR) search space, a paging search space, and a system message search space.
  • RAR Random Access Response
  • the first type of terminal may use the initial downlink BWP as the target downlink BWP.
  • the first type of terminal can select an initial downlink BWP as the target downlink BWP according to the rules, such as randomly selecting an initial downlink BWP; it can also select a predetermined type of initial downlink BWP as the target downlink BWP.
  • BWP for example, the predetermined type is the initial downlink BWP for receiving paging messages.
  • the target downlink BWP is:
  • the initial downlink BWP to receive the paging message is selected based on the preset selection rules.
  • two initial downlink BWPs are configured for the first type of terminal, which include paging search spaces for receiving paging messages.
  • the paging messages can be received from Select one of the two downstream initial BWPs of the message as the target downstream BWP.
  • the preset selection rules include:
  • the initial downlink BWP of the received paging message corresponding to the label is selected as the target downlink BWP.
  • the preset selection rule can modulate the total number of downlink initial BWPs according to the identification information (UE-ID) of the first type of terminal; according to the modulo index (index), select the initial number of the corresponding number to receive the paging message.
  • the downstream BWP serves as the target downstream BWP.
  • three initial downlink BWPs for receiving paging messages are configured for the first type of terminal, and are arranged according to 0, 1, and 2.
  • the modulo operation result is used as an index and can correspond to 0, 1, or 2 as the target.
  • Downward BWP is used as an index and can correspond to 0, 1, or 2 as the target.
  • the restart condition of the inactivation timer includes at least one of the following:
  • the number of data schedules received by the first type terminal reaches a predetermined number of times Or receive an instruction to switch to the currently active downlink BWP;
  • the number of data schedules received by the first type terminal reaches a predetermined number of times or The command to switch to the currently active downlink BWP is received.
  • the predetermined number of times can be set according to actual application needs.
  • the predetermined number of times can be set to one time.
  • the inactivation timer when the restart condition of the inactivation timer is met, the inactivation timer is restarted and used to time the time when the first type terminal currently activates the downlink BWP and is inactive, thereby ensuring that the downlink BWP can be inactive in a timely manner.
  • the currently activated downlink BWP of the first type terminal falls back to the target downlink BWP.
  • FIG. 4 is a schematic flowchart of a bandwidth partial BWP configuration method according to an exemplary embodiment. The method is executed by the network device in the wireless communication system shown in FIG. 1 . As shown in Figure 4, the bandwidth partial BWP configuration method may include:
  • Step 401 Determine whether to configure an inactivation timer for the target terminal according to the type of the target terminal, where the inactivation timer is used for the target terminal to fall back to the target downlink BWP.
  • the BWP configuration method provided in this embodiment is executed by the network device.
  • Network equipment such as base stations need to determine the downlink BWP that the target terminal is currently working on, and can determine whether to configure an inactivation timer for the target terminal according to the type of the target terminal.
  • the network equipment includes base stations, relay stations, radio frequency remote units, etc., and may also be core network side equipment.
  • the target terminal may work based on BWP.
  • a target terminal can be configured with multiple BWPs at the same time, but the target terminal can only have at most one activated BWP on a serving cell at the same time.
  • the inactivation timer and the BWP configured by the terminal may have a one-to-one correspondence and/or a one-to-many correspondence.
  • the inactivation timer includes: a BWP inactivation timer and/or a secondary cell (Scell) deactivation timer.
  • the network device can configure the inactivation timer used on each BWP for the target terminal. If the target terminal is configured with an inactivation timer, the target terminal enables the function of automatically falling back from the currently activated BWP to the target downlink BWP. If the target terminal is not configured with an inactivation timer, the target terminal will remain in the currently activated downlink BWP.
  • the target downlink BWP when the target terminal is configured with a default downlink BWP, the target downlink BWP is the default downlink BWP; when the target terminal is not configured with a default downlink BWP and is configured with an initial downlink BWP, the target downlink BWP can be the initial downlink BWP.
  • the network device determines whether to configure an inactivation timer for the target terminal according to the type of the target terminal, so that the inactivation timer can be used for the target terminal to fall back to a target with a narrower bandwidth.
  • Downlink BWP can reduce the power consumption of user equipment and realize flexible switching of BWP of the target terminal.
  • the method may further include:
  • configuration information is sent to the target terminal; wherein the configuration information includes the inactivation timer configured for the target terminal.
  • determining whether to configure an inactivation timer for the target terminal according to the type of the target terminal may include:
  • the target terminal is a first type terminal, determine not to configure the inactivation timer for the target terminal;
  • the target terminal when the target terminal is not a terminal of the first type, it is determined to configure the inactivation timer for the target terminal.
  • the type of the target terminal is used to determine whether the target terminal is a first type terminal.
  • the first type of terminal may be a terminal whose supported bandwidth is less than a preset threshold, or a specific type of terminal, or any terminal whose supported bandwidth is less than the bandwidth supported by the second type of terminal.
  • the first type of terminal may be an eRedCap terminal
  • the second type of terminal may be a RedCap terminal
  • FIG. 5 is a schematic flowchart of a method for determining the bandwidth part BWP according to an exemplary embodiment. The method is executed by the network device in the wireless communication system shown in FIG. 1 . As shown in Figure 5, the bandwidth part BWP determination method may include:
  • Step 501 Determine the downlink BWP currently working for the first type terminal according to whether the first type terminal is configured with an inactivation timer; wherein the downlink BWP currently working for the first type terminal is used for the network device Send downlink information.
  • the BWP determination method provided in this embodiment is executed by the network device.
  • the network equipment includes base stations, relay stations, radio frequency remote units, etc., and may also be core network side equipment.
  • the first type of terminal may be a terminal whose supported bandwidth is less than a preset threshold, or a specific type of terminal, or any terminal whose supported bandwidth is less than the bandwidth supported by the second type of terminal.
  • the first type of terminal may be an enhanced reduced capability eRedCap terminal or the like.
  • the second type of terminal may include any terminal other than the first type of terminal.
  • the second type of terminal may be: an eMBB terminal or a RedCap terminal.
  • the first type of terminal can work based on BWP.
  • a first-type terminal can be configured with multiple BWPs at the same time, but the first-type terminal works on an activated BWP in a serving cell at the same time.
  • the inactivation timer and the BWP configured by the terminal may have a one-to-one correspondence and/or a one-to-many correspondence.
  • the inactivation timer includes: a BWP inactivation timer and/or a secondary cell deactivation timer.
  • the network device can configure the inactivation timer used on each BWP for the first type terminal. If the first type of terminal is configured with an inactivation timer, it will automatically fall back from the currently activated BWP to the target downlink BWP when the inactivation timer times out.
  • the first type of terminal is not configured with an inactivation timer, it will remain at the currently activated downlink BWP. If the first type of terminal is not configured with an inactivation timer, the first type of terminal will not fall back to the operation of the target downlink BWP, thus At least reduce BWP fallback for Class 1 terminals configured with inactivation timers.
  • the target downlink BWP is the default downlink BWP of the first type of terminal.
  • the target downlink BWP when the first type of terminal is configured with a default downlink BWP, the target downlink BWP is the default downlink BWP.
  • the target downlink BWP can be the initial downlink BWP.
  • the target downlink BWP can be a BWP with a bandwidth smaller than the currently activated downlink BWP of the first type of terminal. In this way, through the BWP fallback, the BWP monitored by the first type of terminal can be reduced, thereby saving power consumption.
  • it may be determined according to the BWP configuration information of the first type terminal whether the first type terminal is configured with an inactivation timer that currently activates downlink BWP usage.
  • the network device determines the downlink BWP of the first-type terminal currently working according to whether the first-type terminal is configured with an inactivation timer, so that the network device determines the downlink BWP of the first-type terminal currently working according to the downlink BWP of the first-type terminal.
  • BWP sends downlink information.
  • determining the downlink BWP currently operating by the first-type terminal according to whether the first-type terminal is configured with an inactivation timer includes at least one of the following:
  • the first type terminal When the first type terminal is configured with the inactivation timer and is configured with a target downlink BWP, determine that the first type terminal falls back to the target downlink BWP when the inactivation timer expires;
  • the first type terminal When the first type terminal is configured with the inactivation timer and the target downlink BWP is not configured, it is determined that the first type terminal remains at the currently activated downlink BWP.
  • the first type terminal if the first type terminal is not configured with the inactivation timer, it is determined that the first type terminal continues to maintain the currently activated downlink BWP.
  • the target downstream BWP can be the default downstream BWP or the initial downstream BWP.
  • the first type of terminal when the first type of terminal is configured with the inactivation timer, and if the first type of terminal is configured with a default downlink BWP, it is determined that the first type of terminal falls back to the default downlink when the inactivation timer expires.
  • BWP when the first-type terminal is not configured with a default downlink BWP and is configured with an initial downlink BWP, it can be determined that the first-type terminal falls back to the initial downlink BWP when the inactivation timer times out.
  • the first type of terminal if the first type of terminal is configured with the inactivation timer, the first type of terminal is not configured with a default downlink BWP and is not configured with an initial downlink BWP, it is determined that the first type of terminal remains in the state when the inactivation timer expires. The currently activated downlink BWP.
  • the inactivation timer configured by the first type terminal is used to fall back to the default downlink BWP and is not used to fall back to the initial downlink BWP, when the first type terminal is not configured with the default downlink BWP , determining that the first type of terminal remains in the currently activated downlink BWP when the inactivation timer expires.
  • the inactivation timer is used to fall back to the default downlink BWP and is not used to fall back to the initial downlink BWP, if the first type of terminal is not configured with a default downlink BWP, then no matter whether the first type of terminal is configured with an initial downlink BWP BWP, the first type of terminal will maintain the currently activated downlink BWP when the inactivation timer times out.
  • the method further includes at least one of the following:
  • the first type terminal When the first type terminal is configured with the inactivation timer, the first type terminal is configured with an initial downlink BWP and the default downlink BWP is not configured, it is determined that the first type terminal is in the inactivation timer.
  • the target downlink BWP is the downlink BWP with smaller bandwidth among the initial downlink BWP and the currently activated downlink BWP.
  • the first type terminal if the first type terminal is configured with the inactivation timer, and the first type terminal is configured with an initial downlink BWP and the default downlink BWP is not configured, the first type terminal will respond to the initial downlink BWP.
  • the bandwidth of the downlink BWP is compared with the bandwidth of the currently activated downlink BWP, and when the inactivation timer times out, the downlink BWP with smaller bandwidth is operated.
  • the target downlink BWP has multiple candidate downlink BWPs. Different candidate downlink BWPs have different priorities. When performing BWP fallback, you can fall back to a high-priority BWP based on priority.
  • the first type terminal when the first type terminal is configured with the inactivation timer and is configured with the target downlink BWP, it is determined that the first type terminal falls back when the inactivation timer expires.
  • Downstream BWP to the target including:
  • the first type terminal When the first type terminal is configured with the inactivation timer and it is determined that the first priority candidate downlink BWP is not configured and the second priority candidate downlink BWP is configured, it is determined that the first type terminal is configured with the inactivation timer. The terminal falls back to the alternative downlink BWP of the second priority when the inactivation timer expires;
  • the first type terminal when the first type terminal is configured with the inactivation timer, and when it is determined that the first priority candidate downlink BWP is configured and the second priority candidate downlink BWP is configured, the first The class terminal falls back to the alternative downlink BWP of the first priority when the inactivation timer expires; wherein the first priority is higher than the second priority.
  • the priority of the candidate downstream BWP of the target downstream BWP can be used to determine whether the candidate downstream BWP can be prioritized as the target downstream BWP that falls back when the inactivation timer times out.
  • the network device can configure corresponding priorities for the downlink BWPs when configuring the downlink BWP for the terminal.
  • Each BWP corresponds to a priority, and the priorities corresponding to each BWP can be the same or different.
  • the priority of the candidate downlink BWP can be that the first type terminal sets the priority corresponding to each BWP according to the bandwidth of the BWP. The smaller the bandwidth of the BWP, the higher the priority corresponding to the BWP. It can also be the first type terminal. Set the priority corresponding to BWP according to the transmission quality of BWP.
  • the candidate downlink BWP of the target downlink BWP includes a default downlink BWP or an initial downlink BWP.
  • the priority of the default downlink BWP is the first priority
  • the priority of the initial downlink BWP is the second priority
  • the first type of terminal when the first type of terminal is configured with an inactivation timer and a default downlink BWP, the first type of terminal will fall back to the default downlink BWP when the inactivation timer times out.
  • the first type terminal when the first type terminal is configured with an inactivation timer and it is determined that the default downlink BWP is not configured and the initial downlink BWP is configured, the first type terminal can fall back to the initial downlink BWP when the inactivation timer expires.
  • the initial downlink BWP includes at least one of the following:
  • the initial downlink BWP of the first type of terminal
  • the initial downlink BWP of the second type of terminal the bandwidth supported by the second type of terminal is greater than the bandwidth supported by the first type of terminal;
  • the initial downlink BWP of a third-type terminal is greater than the bandwidth supported by the second-type terminal.
  • the second type of terminal may include: RedCap terminal.
  • the third type of terminal may include: eMBB terminal.
  • the priority of the candidate downlink BWP includes at least one of the following:
  • the priority of the default downlink BWP is higher than the priority of the initial downlink BWP of the first type terminal
  • the priority of the initial downlink BWP of the first type terminal is higher than the priority of the initial downlink BWP of the second type terminal;
  • the priority of the initial downlink BWP of the second type terminal is higher than the priority of the initial downlink BWP of the third type terminal.
  • the first type of terminal if the first type of terminal is configured with a default downlink BWP, the first type of terminal will fall back to the default downlink BWP when the inactivation timer times out. If the first type of terminal is not configured with a default downlink BWP and is configured with an initial downlink BWP, the first type of terminal will fall back to the initial downlink BWP when the inactivation timer times out.
  • the first type of terminal is not configured with a default downlink BWP and is not configured with an initial downlink BWP, the first type of terminal will fall back to the initial downlink BWP configured for the second type of terminal or the third type of terminal when the inactivation timer times out.
  • Configured initial downlink BWP wherein, the initial downlink BWP configured for the second type of terminal has a higher priority than the initial downlink BWP configured for the third type of terminal.
  • the configuration information used to configure the initial downlink BWP of the first type of terminal is carried in a system information block.
  • the network device may send the initial downlink BWP configuration information carried in the system information block to the first type terminal, and the configuration information is used for the first type terminal to configure the initial downlink BWP.
  • the configuration information of the initial downlink BWP of the first type terminal or the indication information of the configuration information can be carried in the system information block 1 (System Information Block Type 1, SIB1) or in the newly created SIB.
  • system information block 1 System Information Block Type 1, SIB1
  • SIB1 System Information Block Type 1, SIB1
  • all or part of the reserved bits in SIB1 are used to represent the configuration information of the initial downlink BWP of the first type terminal or the indication information of the configuration information.
  • the indication information is used to notify the first type terminal in which system information message or SIB it can receive the initial downlink BWP configuration information of the first type terminal.
  • the newly created SIB is used to carry the configuration information of the initial downlink BWP of the first type terminal or the indication information of the configuration information.
  • the newly created SIB is such as SIB1-bis (System Information Block Type 1bis).
  • the initial downlink BWP includes at least one of the following:
  • the first downlink initial BWP information may have at least one of the following search spaces: a random access response search space, a paging search space, and a system message search space.
  • the first type of terminal may use the initial downlink BWP as the target downlink BWP.
  • the first type of terminal can select an initial downlink BWP as the target downlink BWP according to the rules, such as randomly selecting an initial downlink BWP; it can also select a predetermined type of initial downlink BWP as the target downlink BWP.
  • BWP for example, the predetermined type is the initial downlink BWP for receiving paging messages.
  • the target downlink BWP is:
  • the initial downlink BWP to receive the paging message is selected based on the preset selection rules.
  • two initial downlink BWPs are configured for the first type of terminal, which include paging search spaces for receiving paging messages.
  • the paging messages can be received from Select one of the two downstream initial BWPs of the message as the target downstream BWP.
  • the preset selection rules include:
  • the initial downlink BWP of the received paging message corresponding to the label is selected as the target downlink BWP.
  • the preset selection rule can modulate the total number of downlink initial BWPs according to the identification information (UE-ID) of the first type of terminal; according to the index of the modulus, select the initial downlink BWP of the corresponding number to receive the paging message as The target downstream BWP.
  • UE-ID identification information
  • three initial downlink BWPs for receiving paging messages are configured for the first type of terminal, and are arranged according to 0, 1, and 2.
  • the modulo operation result is used as an index and can correspond to 0, 1, or 2 as the target.
  • Downward BWP is used as an index and can correspond to 0, 1, or 2 as the target.
  • the restart condition of the inactivation timer includes at least one of the following:
  • the number of data schedules received by the first type terminal reaches a predetermined number of times Or receive an instruction to switch to the currently active downlink BWP;
  • the number of data schedules received by the first type terminal reaches a predetermined number of times or The command to switch to the currently active downlink BWP is received.
  • the predetermined number of times can be set according to actual application needs.
  • the predetermined number of times can be set to one time.
  • the inactivation timer when the restart condition of the inactivation timer is met, the inactivation timer is restarted and used to time the time when the first type terminal currently activates the downlink BWP and is inactive, thereby ensuring that the downlink BWP can be inactive in a timely manner.
  • the currently activated downlink BWP of the first type terminal falls back to the target downlink BWP.
  • Embodiments of the present disclosure provide a BWP switching method, which can be used for BWP switching of specific types of terminals.
  • the specific type of terminal may be an enhanced Redcap type terminal.
  • the BWP inactivation timer is not configured for a specific type of terminal.
  • a BWP inactivation timer is configured for a specific type of terminal; the BWP inactivation timer is only used for the specific type of terminal to fall back to the default downlink BWP.
  • a default downlink BWP is configured for a specific type of terminal, after the BWP inactivation timer times out, the specific type of terminal falls back to the default downlink BWP; if no default downlink BWP is configured, it will continue to work at the current level. The downward BWP.
  • the protocol stipulates that the first type of user can configure the BWP inactivation timer only if the default downlink BWP is configured; that is, if the default downlink BWP is not configured, there is no need to configure the BWP inactivation timer. .
  • the restart condition for the BWP inactivation timer is:
  • the terminal is configured with a default downlink BWP, and the currently active downlink BWP is not the default downlink BWP, and a specific type of terminal receives a data schedule or receives a switch to the currently active downlink BWP instruction, the BWP inactivation timer will be restarted.
  • a default downlink BWP is configured for a specific type of terminal, after the BWP inactivation timer times out, the specific type of terminal falls back to the default downlink BWP; if no default downlink BWP is configured, it switches to a specific downlink initialization timer. BWP.
  • the target downstream BWP is switched to the initial downstream BWP configured for the second type of users in SIB1 (the initial downstream BWP can be configured for eMBB users or the initial downstream BWP configured for R17 Redcap users).
  • the priority of the downlink initial BWP configured for R17 Redcap users is higher than the priority of the initial downlink BWP configured for eMBB users.
  • the target downstream BWP is switched to SIB1-bis or the downstream initial BWP configured for a specific type of user in SIB1 (if only one is configured).
  • the target downstream BWP is switched to the downstream BWP configured for a specific type of user in SIB1-bis (if multiple are configured), and is selected according to the following rules:
  • the predetermined type of downlink initial BWP may be a downlink initial BWP configured for a specific type of terminal and including a RAR search space.
  • the predetermined type of downlink initial BWP may be a downlink initial BWP configured for a specific type of terminal and including a system message search space.
  • the predetermined type of downlink initial BWP may be any type of downlink initial BWP configured for a specific type of terminal:
  • the network device is configured with the downlink initial BWP (third type) for system message reception;
  • the network device is configured with the downlink initial BWP (type 1) used for paging message reception;
  • the network device is configured with the downlink initial BWP (type 2) for RAR message reception;
  • the predetermined type of initial downlink BWP may be the initial BWP used for paging monitoring; at this time, if multiple initial BWPs used for paging monitoring are configured, the terminal selects one of the downlink initial BWPs through predetermined selection rules.
  • the predetermined selection rules can be:
  • the restart condition of the BWP inactivation timer can be:
  • the terminal is configured with a default BWP, and the currently activated BWP is not the default BWP, and the terminal receives a data schedule or receives an instruction to switch to the currently activated downlink BWP, the inactivation timer will be restarted; or,
  • the terminal will restart the inactivation timer after receiving a data schedule or a command to switch to the currently activated downlink BWP.
  • FIG. 6 is a block diagram of a bandwidth partial BWP switching device according to an exemplary embodiment of the present disclosure.
  • the bandwidth partial BWP switching device can be applied to the first type of terminal.
  • the bandwidth partial BWP switching device 100 may include:
  • the first determination module 110 is configured to determine whether the first type terminal falls back to the target downlink BWP or remains at the currently activated downlink BWP according to whether the first type terminal is configured with an inactivation timer.
  • the first determining module 110 is configured as:
  • the first type terminal When the first type terminal is configured with the inactivation timer and the target downlink BWP, determine to fall back to the target downlink BWP when the inactivation timer times out;
  • the first type terminal When the first type terminal is configured with the inactivation timer and the target downlink BWP is not configured, it is determined to maintain the currently activated downlink BWP.
  • the target downlink BWP has multiple candidate downlink BWPs; different candidate downlink BWPs have different priorities;
  • the first determination module 110 is configured as:
  • the inactivation timer When the first type of terminal is configured with the inactivation timer and it is determined that the candidate downlink BWP of the first priority is not configured and the candidate downlink BWP of the second priority is configured, it is determined that the inactivation timer is configured. When the timer times out, fall back to the alternative downlink BWP of the second priority;
  • the inactivation timer When the first type of terminal is configured with the inactivation timer, and when it is determined that an alternative downlink BWP of the first priority is configured and an alternative downlink BWP of the second priority is configured, it is determined that the inactivation timer When the server times out, it falls back to the alternative downlink BWP of the first priority level;
  • the first priority is higher than the second priority.
  • the candidate downlink BWPs of the target downlink BWP include:
  • the initial downlink BWP includes at least one of the following:
  • the initial downlink BWP of the first type of terminal
  • the initial downlink BWP of the second type of terminal where the bandwidth supported by the second type of terminal is greater than the bandwidth supported by the first type of terminal;
  • the initial downlink BWP of a third type terminal where the bandwidth supported by the third type terminal is greater than the bandwidth supported by the second type terminal.
  • the priority of the candidate downlink BWP includes at least one of the following:
  • the priority of the default downlink BWP is higher than the priority of the initial downlink BWP of the first type terminal
  • the priority of the initial downlink BWP of the first type terminal is higher than the priority of the initial downlink BWP of the second type terminal;
  • the priority of the initial downlink BWP of the second type terminal is higher than the priority of the initial downlink BWP of the third type terminal.
  • the configuration information used to configure the initial downlink BWP of the first type of terminal is carried in a system information block.
  • the initial downlink BWP includes at least one of the following:
  • the target downlink BWP is:
  • the initial downlink BWP to receive the paging message is selected based on the preset selection rules.
  • the preset selection rules include:
  • the initial downlink BWP of the received paging message corresponding to the label is selected as the target downlink BWP.
  • the restart conditions of the inactivation timer include:
  • the number of data schedules received by the first type terminal reaches a predetermined number of times ;
  • the number of data schedules received by the first type terminal reaches a predetermined number.
  • FIG. 7 is a block diagram of a bandwidth partial BWP configuration device according to an exemplary embodiment of the present disclosure.
  • the bandwidth part BWP configuration device can be applied to network equipment.
  • the bandwidth partial BWP configuration device 200 may include:
  • the second determination module 210 is configured to determine whether to configure an inactivation timer for the target terminal according to the type of the target terminal, where the inactivation timer is used for the target terminal to fall back to the target downlink BWP.
  • the second determination module 210 is configured as:
  • the target terminal is a first type terminal, determine not to configure the inactivation timer for the target terminal;
  • the target terminal When the target terminal is not a terminal of the first type, it is determined to configure the inactivation timer for the target terminal.
  • FIG. 8 is a block diagram of an apparatus for determining a bandwidth part BWP according to an exemplary embodiment of the present disclosure.
  • the bandwidth part BWP determining device can be applied to network equipment.
  • the bandwidth part BWP determining device 300 may include:
  • the third determination module 310 is configured to determine the downlink BWP currently working by the first type terminal according to whether the first type terminal is configured with an inactivation timer; wherein, the downlink BWP currently working by the first type terminal is expressed by For the network device to send downlink information.
  • the third determining module 310 is configured as:
  • the first type terminal When the first type terminal is configured with the inactivation timer and is configured with a target downlink BWP, determine that the first type terminal falls back to the target downlink BWP when the inactivation timer expires;
  • the first type terminal When the first type terminal is configured with the inactivation timer and the target downlink BWP is not configured, it is determined that the first type terminal remains at the currently activated downlink BWP.
  • the target downlink BWP has multiple candidate downlink BWPs; different candidate downlink BWPs have different priorities;
  • the third determination module 310 is configured as:
  • the first type terminal When the first type terminal is configured with the inactivation timer and it is determined that the first priority candidate downlink BWP is not configured and the second priority candidate downlink BWP is configured, it is determined that the first type terminal is configured with the inactivation timer. The terminal falls back to the alternative downlink BWP of the second priority when the inactivation timer expires;
  • the first type terminal when it is determined that the first priority candidate downlink BWP is configured and the second priority candidate downlink BWP is configured, it is determined that the first type terminal Fall back to the alternative downlink BWP of the first priority level when the inactivation timer expires;
  • the first priority is higher than the second priority.
  • the candidate downlink BWPs of the target downlink BWP include:
  • the initial downlink BWP includes at least one of the following:
  • the initial downlink BWP of the first type of terminal
  • the initial downlink BWP of the second type of terminal where the bandwidth supported by the second type of terminal is greater than the bandwidth supported by the first type of terminal;
  • the initial downlink BWP of a third type terminal where the bandwidth supported by the third type terminal is greater than the bandwidth supported by the second type terminal.
  • the priority of the candidate downlink BWP includes at least one of the following:
  • the priority of the default downlink BWP is higher than the priority of the initial downlink BWP of the first type terminal
  • the priority of the initial downlink BWP of the first type terminal is higher than the priority of the initial downlink BWP of the second type terminal;
  • the priority of the initial downlink BWP of the second type terminal is higher than the priority of the initial downlink BWP of the third type terminal.
  • the configuration information used to configure the initial downlink BWP of the first type of terminal is carried in a system information block.
  • the initial downlink BWP includes at least one of the following:
  • the target downlink BWP is:
  • the initial downlink BWP to receive the paging message is selected based on the preset selection rules.
  • the preset selection rules include:
  • the initial downlink BWP of the received paging message corresponding to the label is selected as the target downlink BWP.
  • the restart conditions of the inactivation timer include:
  • the number of data schedules received by the first type terminal reaches a predetermined number of times ;
  • the number of data schedules received by the first type terminal reaches a predetermined number.
  • An embodiment of the present disclosure provides a communication device.
  • the communication device includes:
  • memory for storing instructions executable by the processor
  • the processor is configured to implement the BWP switching method, BWP configuration method or BWP determination method provided by any of the foregoing technical solutions when running the executable instructions.
  • the processor may include various types of storage media, which are non-transitory computer storage media that can continue to store information stored thereon after the communication device is powered off.
  • the communication device includes: UE or network device.
  • the processor may be connected to the memory through a bus or the like, and be used to read the executable program stored on the memory, for example, at least one of the methods shown in FIGS. 3 to 5 .
  • FIG 9 is a block diagram of a UE 800 according to an exemplary embodiment.
  • the UE 800 may be an Internet of Things UE, such as a sensor device, a mobile phone (also known as a "cellular" phone), and a computer with an Internet of Things UE, and may be, for example, fixed, portable, pocket-sized, handheld, or built-in to a computer. Or a vehicle-mounted device.
  • UE 800 may include one or more of the following components: a processing component 802, a memory 804, a power supply component 806, a multimedia component 808, an audio component 810, an input/output (I/O) interface 812, a sensor component 814, and Communication component 816.
  • Processing component 802 generally controls the overall operations of UE 800, such as operations associated with display, phone calls, data communications, camera operations, and recording operations.
  • the processing component 802 may include one or more processors 820 to execute instructions to generate all or part of the steps of the methods described above.
  • processing component 802 may include one or more modules that facilitate interaction between processing component 802 and other components.
  • processing component 802 may include a multimedia module to facilitate interaction between multimedia component 808 and processing component 802.
  • Memory 804 is configured to store various types of data to support operations at UE 800. Examples of this data include instructions for any application or method operating on the UE800, contact data, phonebook data, messages, pictures, videos, etc.
  • Memory 804 may be implemented by any type of volatile or non-volatile storage device, or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EEPROM), Programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read-only memory
  • EEPROM erasable programmable read-only memory
  • EPROM Programmable read-only memory
  • PROM programmable read-only memory
  • ROM read-only memory
  • magnetic memory flash memory, magnetic or optical disk.
  • Power supply component 806 provides power to various components of UE 800.
  • Power component 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to UE 800.
  • Multimedia component 808 includes a screen that provides an output interface between the UE 800 and the user.
  • the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user.
  • the touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide action.
  • multimedia component 808 includes a front-facing camera and/or a rear-facing camera. When UE800 is in operating mode, such as shooting mode or video mode, the front camera and/or rear camera can receive external multimedia data.
  • Each front-facing camera and rear-facing camera can be a fixed optical lens system or have a focal length and optical zoom capabilities.
  • Audio component 810 is configured to output and/or input audio signals.
  • audio component 810 includes a microphone (MIC) configured to receive external audio signals when UE 800 is in operating modes, such as call mode, recording mode, and voice recognition mode. The received audio signal may be further stored in memory 804 or sent via communication component 816 .
  • audio component 810 also includes a speaker for outputting audio signals.
  • the I/O interface 812 provides an interface between the processing component 802 and a peripheral interface module, which may be a keyboard, a click wheel, a button, etc. These buttons may include, but are not limited to: Home button, Volume buttons, Start button, and Lock button.
  • Sensor component 814 includes one or more sensors that provide various aspects of status assessment for UE 800 .
  • the sensor component 814 can detect the open/closed state of the device 800, the relative positioning of components, such as the display and keypad of the UE800, the sensor component 814 can also detect the position change of the UE800 or a component of the UE800, the user and the Presence or absence of UE800 contact, UE800 orientation or acceleration/deceleration and temperature changes of UE800.
  • Sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact.
  • Sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor component 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
  • Communication component 816 is configured to facilitate wired or wireless communication between UE 800 and other devices.
  • UE800 can access wireless networks based on communication standards, such as WiFi, 2G, 3G, 4G or 5G, or a combination thereof.
  • the communication component 816 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel.
  • the communications component 816 also includes a near field communications (NFC) module to facilitate short-range communications.
  • NFC near field communications
  • the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.
  • RFID radio frequency identification
  • IrDA infrared data association
  • UWB ultra-wideband
  • Bluetooth Bluetooth
  • UE 800 may be configured by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gates Array (FPGA), controller, microcontroller, microprocessor or other electronic components are implemented for executing the above method.
  • ASICs application specific integrated circuits
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLDs programmable logic devices
  • FPGA field programmable gates Array
  • controller microcontroller, microprocessor or other electronic components are implemented for executing the above method.
  • a non-transitory computer-readable storage medium including instructions such as a memory 804 including instructions, executable by the processor 820 of the UE 800 to generate the above method is also provided.
  • the non-transitory computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.
  • an embodiment of the present disclosure shows the structure of a network device.
  • the network device 900 may be provided as various network elements such as the aforementioned access network elements and/or network functions.
  • network device 900 includes a processing component 922, which further includes one or more processors, and memory resources represented by memory 932 for storing instructions, such as application programs, executable by processing component 922.
  • the application program stored in memory 932 may include one or more modules, each corresponding to a set of instructions.
  • the processing component 922 is configured to execute instructions to perform any of the foregoing methods applied to the network device, for example, the methods shown in any one of FIGS. 3 to 5 .
  • Network device 900 may also include a power supply component 926 configured to perform power management of network device 900, a wired or wireless network interface 950 configured to connect network device 900 to a network, and an input-output (I/O) interface 958 .
  • Network device 900 may operate based on an operating system stored in memory 932, such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM or the like.

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

Abstract

Des modes de réalisation de la présente divulgation concernent un procédé de commutation de partie de bande passante (BWP), un appareil, un dispositif de communication et un support de stockage. Le procédé de commutation de partie de bande passante (BWP) est exécuté par un terminal de premier type, et détermine, en fonction du fait que le terminal de premier type est configuré avec un temporisateur d'inactivité, si le terminal de premier type retourne à une BWP de liaison descendante cible ou reste au niveau d'une BWP de liaison descendante activée actuelle (301).
PCT/CN2022/107209 2022-07-21 2022-07-21 Procédé de commutation de partie de bande passante (bwp), appareil, dispositif de communication et support de stockage WO2024016293A1 (fr)

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PCT/CN2022/107209 WO2024016293A1 (fr) 2022-07-21 2022-07-21 Procédé de commutation de partie de bande passante (bwp), appareil, dispositif de communication et support de stockage
CN202280002761.3A CN117751662A (zh) 2022-07-21 2022-07-21 带宽部分bwp切换方法及装置、通信设备及存储介质

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