WO2019080014A1 - 用于切换带宽部分的方法和终端设备 - Google Patents

用于切换带宽部分的方法和终端设备

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Publication number
WO2019080014A1
WO2019080014A1 PCT/CN2017/107690 CN2017107690W WO2019080014A1 WO 2019080014 A1 WO2019080014 A1 WO 2019080014A1 CN 2017107690 W CN2017107690 W CN 2017107690W WO 2019080014 A1 WO2019080014 A1 WO 2019080014A1
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WO
WIPO (PCT)
Prior art keywords
parameter
bandwidth portion
bwp
switching
terminal device
Prior art date
Application number
PCT/CN2017/107690
Other languages
English (en)
French (fr)
Inventor
唐海
Original Assignee
Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to PCT/CN2017/107690 priority Critical patent/WO2019080014A1/zh
Priority to EP17929657.9A priority patent/EP3700246A4/en
Priority to CN201780096109.1A priority patent/CN111247823B/zh
Priority to TW107137214A priority patent/TW201918095A/zh
Publication of WO2019080014A1 publication Critical patent/WO2019080014A1/zh
Priority to US16/854,172 priority patent/US20200252936A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/06—Reselecting a communication resource in the serving access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
    • H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
    • H04L69/321—Interlayer communication protocols or service data unit [SDU] definitions; Interfaces between layers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
    • H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
    • H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
    • H04L69/324—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the data link layer [OSI layer 2], e.g. HDLC
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/02—Data link layer protocols

Definitions

  • the present application relates to the field of communications, and in particular, to a method and a terminal device for switching a bandwidth portion.
  • the system bandwidth supported by the new radio (NR) system is much larger than the maximum 20 MHz system bandwidth supported by the long term evolution (LTE) system.
  • LTE long term evolution
  • BWP bandwidth part
  • the network device may configure one or more BWPs for the terminal device, and each BWP mainly includes three parameters: a basic parameter set (Numerology), a center frequency point, and Bandwidth, where Numerology can be used to identify subcarrier spacing (SCS) with a bandwidth less than or equal to the maximum system bandwidth.
  • RRC radio resource control
  • BWP is a concept of frequency domain dimension.
  • the existing discussion assumes that at one point in time, the terminal device only supports one active BWP.
  • the so-called activation means that the terminal device expects to receive signals on the bandwidth specified by the BWP, including (uplink and downlink) data transmission, system messages, etc. Wait.
  • the existing discussion also allows the network device to configure the terminal device to switch between different BWPs by sending an instruction, that is, deactivate the current BWP and activate a new BWP.
  • the present application provides a method and a terminal device for switching a BWP, which enables a MAC layer to perform handover of a BWP.
  • a method for switching a BWP comprising: switching a parameter of a MAC layer from a first parameter in a case where a physical layer switches from a first BWP to a second BWP
  • the first parameter corresponds to the first BWP
  • the second parameter corresponds to the second BWP
  • the operation corresponding to the MAC layer is performed.
  • the method for switching the BWP in the embodiment of the present application when the physical layer switches the BWP, by sending a handover identifier to the MAC layer, the parameters corresponding to the MAC layer are also switched, so that the parameter corresponding to the switched BWP can be used. , perform related operations of the MAC layer, thereby improving transmission efficiency.
  • the second parameter includes a physical uplink control channel (PUCCH) resource parameter corresponding to the second BWP, and a physical downlink control channel (physical downlink)
  • the control channel (PDCCH) monitors at least one of a resource parameter and a semi-persistent scheduling (SPS) resource parameter.
  • PUCCH physical uplink control channel
  • SPS semi-persistent scheduling
  • the PUCCH resource parameter may be used to indicate a PUCCH resource, where the PUCCH resource may be a periodic PUCCH resource, where the PUCCH resource may be used to transmit a scheduling request (SR) or a hybrid automatic repeat request (hybrid automatic) Repeat request, HARQ) feedback information.
  • SR scheduling request
  • HARQ hybrid automatic repeat request
  • the PDCCH listening resource parameter may be used to indicate a PDCCH listening resource, and the PDCCH listening resource parameter may be used to indicate a starting position of a PDCCH search space.
  • the SPS resource parameter may be used to indicate an SPS resource, and the SPS resource may include a configured downlink assignment and a configured uplink grant.
  • the SPS resource parameter may be an SPS resource parameter configured by the RRC and controlled by the L1 signaling, that is, similar to the LTE SPS, there is an RRC configuration resource period, and then the DCI control resource activation use of the L1 and the frequency domain location of the resource.
  • the SPS resource parameter may also be a semi-static configuration resource parameter configured only by the RRC, that is, a semi-static resource indicating a pure RRC configuration, without the control of the L1 DCI, and the RRC configures parameters including a resource period and a frequency domain resource location.
  • the switching the parameter of the MAC layer from the first parameter to the second parameter includes: switching from the first BWP at the physical layer After the second BWP, the MAC layer receives the handover identifier from the physical layer; and according to the handover identifier, switches the parameter of the MAC layer from the first parameter to the second parameter.
  • the switching identifier is an identifier of the second BWP.
  • the physical layer is switched from the first BWP to the second BWP, and includes: receiving handover indication information sent by the network device; and switching, according to the handover indication information, the physical layer from the first BWP to the second BWP.
  • the receiving indication information sent by the receiving network device includes: receiving RRC dedicated signaling and downlink control information sent by the network device (downlink control information, DCI) or a MAC control unit (CE), the RRC dedicated signaling, DCI or MAC CE includes the handover indication information.
  • DCI downlink control information
  • CE MAC control unit
  • the physical layer is switched from the first BWP to the second BWP, including: removing the physical layer from the first according to a preset period.
  • the BWP switches to the second BWP.
  • the preset period may be configured by the network device for the terminal device.
  • the method for switching the BWP in the embodiment of the present application when the physical layer switches the BWP, by sending a handover identifier to the MAC layer, the parameters corresponding to the MAC layer are also switched, so that the parameter corresponding to the switched BWP can be used. , perform related operations of the MAC layer, thereby improving transmission efficiency.
  • a terminal device for performing the method of any of the above first aspect or any of the possible implementations of the first aspect.
  • the terminal device comprises means for performing the method of any of the above-described first aspect or any of the possible implementations of the first aspect.
  • a terminal device comprising: a storage unit for storing instructions for executing instructions stored in the memory, and a processor, and when the processor executes the instructions stored by the memory The execution causes the processor to perform the method of the first aspect or any possible implementation of the first aspect.
  • a computer readable medium for storing a computer program comprising instructions for performing the method of the first aspect or any of the possible implementations of the first aspect.
  • a computer program product comprising instructions for performing the above-described first aspect or any of the possible implementations of the first aspect when the computer runs the finger of the computer program product The method of switching BWP.
  • the computer program product can be run on the terminal device of the second aspect described above.
  • FIG. 1 is a schematic flowchart of a method for switching a BWP according to an embodiment of the present application.
  • FIG. 2 is a schematic block diagram of a terminal device according to an embodiment of the present application.
  • FIG. 3 is another schematic block diagram of a terminal device according to an embodiment of the present application.
  • GSMC global system of mobile communication
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access
  • GPRS general packet radio service
  • LTE long term evolution
  • FDD LTE frequency division duplex
  • TDD LTE Time Division Duplex
  • UMTS universal mobile telecommunication system
  • WiMAX worldwide interoperability for microwave access
  • 5G future fifth generation
  • 5G fifth generation
  • NR new radio
  • the terminal device in the embodiment of the present application may refer to a user equipment, an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or User device.
  • the terminal device may also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), with wireless communication.
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistant
  • the network device in the embodiment of the present application may be a device for communicating with a terminal device, where the network device may be a base transceiver station (BTS) in a GSMC system or a CDMA system, or a base station (NodeB in a WCDMA system. NB), which may also be an evolved base station (evolutional NodeB, eNB or eNodeB) in the LTE system, or a wireless controller in a cloud radio access network (CRAN) scenario, or the network device may For relay stations, access points, in-vehicle devices, wearable devices, and in future 5G networks
  • the network device or the network device in the PLMN network in the future is not limited in this embodiment.
  • FIG. 1 shows a schematic flow diagram of a method 100 for switching BWPs, which may be performed by a terminal device, in accordance with an embodiment of the present application.
  • the method 100 includes: S110, in the case that the physical layer is switched from the first BWP to the second BWP, the parameters of the MAC layer are switched from the first parameter to the second parameter, where the first parameter corresponds to The first BWP, the second parameter corresponds to the second BWP; S120, according to the second parameter, performing an operation corresponding to the MAC layer.
  • the network device in the RRC connection state, may configure one or more BWPs for the terminal device, and also allow the network device to configure the terminal device to switch between different BWPs by sending an instruction, that is, deactivate (deactivate ) The current BWP, while activating a new BWP.
  • activating any one of the BWPs means that the terminal device expects to receive signals on the bandwidth specified by the BWP, including (uplink and downlink) data transmission, system messages, and the like.
  • the terminal device may determine the handover BWP according to the handover indication information sent by the network device or according to a preset period. Specifically, the terminal device may receive the handover indication information sent by the network device, where the handover indication information is used to indicate that the terminal device switches from the current BWP to the new BWP, for example, the terminal device is currently in the first BWP, according to the handover indication information. The terminal device can be instructed to switch from the first BWP to the second BWP.
  • the handover indication information may include an identifier of the second BWP, so that the terminal device switches from the first BWP to the second BWP according to the identifier of the second BWP in the handover indication information.
  • the terminal device receives the handover indication information sent by the network device, and the handover indication information is carried by the RRC dedicated signaling, or the handover indication information is included by using the DCI or the MAC CE, but the embodiment of the present application is Not limited to this.
  • the terminal device can also switch the BWP according to a preset period.
  • a timer may be maintained in the terminal device, and it is determined whether to perform BWP switching based on the timer.
  • the timer is set to be equal to the preset period value, and the preset period value may be configured by the network device, or the terminal device may determine whether to switch the BWP according to the preset period value according to the actual application setting.
  • the terminal device determines to execute the BWP, and may switch the physical layer from the current first BWP to the second BWP, specifically, deactivate the first BWP and activate the second BWP.
  • the MAC layer may be switched from the first parameter to the second parameter, where the first parameter corresponds to the first BWP, and the second parameter pair Should be in the second BWP.
  • the terminal device performs a BWP handover at the physical layer, and may send a handover identifier from the physical layer to the MAC layer, where the handover identifier indicates that the physical layer performs the BWP handover.
  • the switching identifier may be an identifier of the second BWP, so as to determine a parameter corresponding to the new BWP of the MAC layer, that is, determining, according to the identifier of the second BWP, that the physical layer has switched to the second BWP, determining that the MAC layer corresponds to the first The second parameter of the second BWP.
  • the first parameter of the MAC layer is switched to the second parameter, and the parameter of the MAC layer that needs to be switched may include at least one of a PUCCH resource parameter, a PDCCH monitoring resource parameter, and an SPS resource parameter.
  • the PUCCH resource parameter may be used to indicate a PUCCH resource, where the PUCCH resource may be a periodic PUCCH resource, and the PUCCH resource may be used for S) or HARQ feedback information.
  • the PDCCH listening resource parameter may be used to indicate a PDCCH listening resource, and the PDCCH listening resource parameter may be used to indicate a starting position of a PDCCH search space.
  • the SPS resource parameter may be used to indicate an SPS resource, and the SPS resource may include a configured downlink assignment and a configured uplink grant.
  • the SPS resource parameter may be configured by the RRC and configured by the L1.
  • the SPS resource parameter is controlled, that is, similar to the LTE SPS, there is an RRC configuration resource period, and then the DCI control resource activation use of the L1 and the frequency domain location of the resource; the SPS resource parameter may also be a semi-static configured only by the RRC.
  • the configuration resource parameter that is, the semi-static resource indicating the pure RRC configuration, without the control of the L1DCI, the RRC configures parameters including the resource period and the frequency domain resource location.
  • the first parameter of the MAC layer is switched to the second parameter.
  • the first parameter of the MAC layer may include a PUCCH resource parameter, a PDCCH monitoring resource parameter, and an SPS resource parameter corresponding to the first BWP.
  • the switched second parameter may include a PUCCH resource parameter, a PDCCH listening resource parameter, and an SPS resource parameter corresponding to the second BWP.
  • the terminal device switches the first BWP of the physical layer to the second BWP, and also switches the first parameter corresponding to the first BWP of the MAC layer to the second parameter corresponding to the second BWP.
  • the terminal device may use the second BWP, and may also perform related operations of the MAC layer according to the second parameter.
  • the method for switching the BWP in the embodiment of the present application when the physical layer switches the BWP, by sending a handover identifier to the MAC layer, the parameters corresponding to the MAC layer are also switched, so that the parameter corresponding to the switched BWP can be used. , perform related operations of the MAC layer, thereby improving transmission efficiency.
  • the size of the sequence numbers of the foregoing processes does not mean the order of execution sequence, and the order of execution of each process should be determined by its function and internal logic, and should not be applied to the embodiment of the present application.
  • the implementation process constitutes any limitation.
  • the terminal device 200 includes: a switching unit 210 and a processing unit 220, and optionally, a receiving unit 230.
  • the switching unit 210 is configured to: when the physical layer is switched from the first BWP to the second BWP, switch the parameter of the MAC layer from the first parameter to the second parameter, where the first parameter corresponds to the first parameter
  • the processing unit 220 is configured to: perform an operation corresponding to the MAC layer according to the second parameter.
  • the terminal device of the embodiment of the present application performs the switching of the handover identifier to the MAC layer, so that the parameters corresponding to the MAC layer are also switched, so that the MAC layer can be executed using the parameters corresponding to the switched BWP.
  • the second parameter includes at least one of a PUCCH resource parameter, a PDCCH intercept resource parameter, and an SPS resource parameter corresponding to the second BWP.
  • the switching unit 210 is configured to: after the physical layer switches from the first BWP to the second BWP, receive, at the MAC layer, a handover identifier from the physical layer; according to the handover identifier, the switching identifier The parameters of the layer are switched from the first parameter to the second parameter.
  • the switching identifier is an identifier of the second BWP.
  • the receiving unit 230 is configured to: receive the handover indication information sent by the network device; the switching unit 210 is further configured to: switch the physical layer from the first BWP to the second BWP according to the handover indication information.
  • the receiving unit 230 is specifically configured to: receive the RRC dedicated signaling, the DCI, or the MAC CE sent by the network device, where the RRC dedicated signaling, the DCI, or the MAC CE includes the handover indication information.
  • the switching unit 210 is further configured to: remove the physical layer from the first according to a preset period The BWP switches to the second BWP.
  • terminal device 200 may correspond to the method 100 in the embodiment of the present application, and the foregoing and other operations and/or functions of the respective units in the terminal device 200 respectively implement the method in FIG. 1 .
  • the corresponding process of the terminal device is not described here for brevity.
  • the terminal device of the embodiment of the present application performs the switching of the handover identifier to the MAC layer, so that the parameters corresponding to the MAC layer are also switched, so that the MAC layer can be executed using the parameters corresponding to the switched BWP.
  • FIG. 3 shows a schematic block diagram of a terminal device 300 according to an embodiment of the present application.
  • the terminal device 300 includes a processor 310 and a transceiver 320.
  • the processor 310 is connected to the transceiver 320, and is optional.
  • the terminal device 300 further includes a memory 330, and the memory 330 is connected to the processor 310.
  • the processor 310, the memory 330 and the transceiver 320 communicate with each other through an internal connection path, and the data signal is transmitted and/or controlled.
  • the memory 330 can be used to store instructions, and the processor 310 is configured to execute the storage of the memory 330.
  • An instruction to control the transceiver 320 to send information or a signal where the processor 310 is configured to: switch the parameter of the MAC layer from the first parameter to the second parameter when the physical layer switches from the first BWP to the second BWP, The first parameter corresponds to the first BWP, and the second parameter corresponds to the second BWP; according to the second parameter, the operation corresponding to the MAC layer is performed.
  • the terminal device of the embodiment of the present application performs the switching of the handover identifier to the MAC layer, so that the parameters corresponding to the MAC layer are also switched, so that the MAC layer can be executed using the parameters corresponding to the switched BWP.
  • the second parameter includes at least one of a PUCCH resource parameter, a PDCCH intercept resource parameter, and an SPS resource parameter corresponding to the second BWP.
  • the processor 310 is configured to: after the physical layer switches from the first BWP to the second BWP, receive, at the MAC layer, a handover identifier from the physical layer; according to the handover identifier, the MAC layer The parameter is switched from the first parameter to the second parameter.
  • the switching identifier is an identifier of the second BWP.
  • the transceiver 320 is configured to: receive the handover indication information sent by the network device, where the processor 310 is configured to: switch the physical layer from the first BWP to the second BWP according to the handover indication information.
  • the transceiver 320 is configured to: receive the RRC dedicated signaling, the DCI, or the MAC CE sent by the network device, where the RRC dedicated signaling, the DCI, or the MAC CE includes the handover indication information.
  • the processor 310 is configured to: switch the physical layer from the first BWP to the second BWP according to a preset period.
  • the terminal device 300 may correspond to the terminal device 200 in the embodiment of the present application, and may correspond to the corresponding body in the method 100 according to the embodiment of the present application, and each of the terminal devices 300
  • the foregoing and other operations and/or functions of the unit are respectively implemented in order to implement the corresponding processes of the terminal device in the method in FIG. 1 , and are not described herein for brevity.
  • the terminal device of the embodiment of the present application performs the switching of the handover identifier to the MAC layer, so that the parameters corresponding to the MAC layer are also switched, so that the MAC layer can be executed using the parameters corresponding to the switched BWP.
  • the above method embodiments of the present application may be applied to a processor or implemented by a processor.
  • the processor may be an integrated circuit chip with signal processing capabilities.
  • each step of the foregoing method embodiment may be completed by an integrated logic circuit of hardware in a processor or an instruction in a form of software.
  • the above processor may be a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or the like.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • Programming logic devices, discrete gates or transistor logic devices, discrete hardware components The methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present application may be directly implemented by the hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory, and the processor reads the information in the memory and combines the hardware to complete the steps of the above method.
  • the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be a read-only memory (ROM), a programmable read only memory (ROMM), an erasable programmable read only memory (erasable PROM, EPROM), or an electrical Erase programmable EPROM (EEPROM) or flash memory.
  • ROM read-only memory
  • PROM programmable read only memory
  • EEPROM electrical Erase programmable EPROM
  • flash memory a random access memory (RAM) that acts as an external cache.
  • RAM static random access memory
  • dynamic RAM dynamic random access memory
  • DRAM Synchronous DRAM
  • DDR SDRAM Double Data Rate SDRAM
  • ESDRAM Enhanced Synchronous Dynamic Random Access Memory
  • SLDRAM Synchronously connect dynamic random access memory
  • DR RAM direct memory bus random access memory
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product. Based on this understanding, this application The technical solution in essence or the part contributing to the prior art or part of the technical solution may be embodied in the form of a software product stored in a storage medium, including a plurality of instructions for making one
  • the computer device (which may be a personal computer, server, or network device, etc.) performs all or part of the steps of the methods described in various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program code. .

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Abstract

本申请实施例涉及用于切换带宽部分BWP的方法和终端设备。该方法包括在物理层从第一BWP切换为第二BWP的情况下，将MAC层的参数从第一参数切换为第二参数，该第一参数对应于该第一BWP，该第二参数对应于该第二BWP；根据该第二参数，执行该MAC层对应的操作。本申请实施例的用于切换带宽部分的方法和终端设备，在物理层切换BWP时，通过向MAC层发送切换标识，使得MAC层对应的参数也进行切换，从而可以使用与切换后的BWP对应的参数，执行MAC层的相关操作，从而提高传输效率。

Description

用于切换带宽部分的方法和终端设备 技术领域
本申请涉及通信领域，尤其涉及用于切换带宽部分的方法和终端设备。
背景技术
新无线(new radio，NR)***支持的***带宽远大于长期演进(long term evolution，LTE)***支持的最大20MHz的***带宽，但是对于某些终端设备，由于能力受限，并不一定能支持全部的***带宽，同时为了提高调度效率，NR引入了带宽部分(bandwidth part，BWP)的概念。
具体地，在无线资源控制(radio resource control，RRC)连接状态，网络设备可以为终端设备配置一个或者多个BWP，每个BWP主要包含三个参数：基础参数集(Numerology)、中心频点以及带宽，其中，Numerology可以用于标识载波间隔(subcarrier spacing，SCS)，带宽小于或者等于最大***带宽。
由此可以看出，BWP是一个频域维度的概念。同时，现有的讨论假设在一个时间点，终端设备只支持一个激活的BWP，所谓激活是指终端设备期望在该BWP规定的带宽上接收信号，其包括(上下行)数据传输、***消息等等。
同时，现有的讨论也允许网络设备通过发送指令，配置终端设备在不同的BWP之间进行切换，即去激活(deactivate)当前的BWP，而激活一个新的BWP。
但是，目前切换BWP的操作行为，比如激活与去激活等都是物理层行为，是否对介质访问控制(Media Access Control，MAC)层可见是需要进一步研究的课题。
发明内容
本申请提供了一种用于切换BWP的方法和终端设备，能够使得MAC层执行BWP的切换。
第一方面，提供了一种用于切换BWP的方法，该方法包括：在物理层从第一BWP切换为第二BWP的情况下，将MAC层的参数从第一参数切换 为第二参数，该第一参数对应于该第一BWP，该第二参数对应于该第二BWP；根据该第二参数，执行该MAC层对应的操作。
因此，本申请实施例的用于切换BWP的方法，在物理层切换BWP时，通过向MAC层发送切换标识，使得MAC层对应的参数也进行切换，从而可以使用与切换后的BWP对应的参数，执行MAC层的相关操作，从而提高传输效率。
结合第一方面，在第一方面的一种实现方式中，该第二参数包括与该第二BWP对应的物理上行控制信道(physical uplink control channel，PUCCH)资源参数、物理下行控制信道(physical downlink control channel，PDCCH)监听资源参数和半静态调度(semi-persistent scheduling，SPS)资源参数中的至少一个。
具体地，该PUCCH资源参数可以用于指示PUCCH资源，该PUCCH资源可以为一个周期性的PUCCH资源，该PUCCH资源可以用于传输调度请求(scheduling request，SR)或者混合自动重传请求(hybrid automatic repeat request，HARQ)反馈信息。
PDCCH监听资源参数可以用于指示PDCCH监听资源，该PDCCH监听资源参数可以用于指示一个PDCCH搜索区域(search space)的开始位置。
SPS资源参数可以用于指示SPS资源，该SPS资源可以包括配置的下行分配(configured downlink assignment)和配置的上行授权(configured uplink grant)。另外，该SPS资源参数可以为由RRC配置并由L1信令控制的SPS资源参数，也就是与LTE SPS类似，有RRC配置资源周期，再由L1的DCI控制资源激活使用以及资源的频域位置；该SPS资源参数也可以为只由RRC配置的半静态配置资源参数，即指示纯RRC配置的半静态资源，没有L1 DCI的控制，RRC配置了包括资源周期和频域资源位置等等参数。
结合第一方面及其上述实现方式，在第一方面的另一种实现方式中，该将MAC层的参数从第一参数切换为第二参数，包括：在该物理层从该第一BWP切换为该第二BWP之后，在该MAC层接收来自该物理层的切换标识；根据该切换标识，将该MAC层的参数从该第一参数切换为该第二参数。
结合第一方面及其上述实现方式，在第一方面的另一种实现方式中，该切换标识为该第二BWP的标识。
结合第一方面及其上述实现方式，在第一方面的另一种实现方式中，该 物理层从第一BWP切换为第二BWP，包括：接收网络设备发送的切换指示信息；根据该切换指示信息，将该物理层从该第一BWP切换为该第二BWP。
结合第一方面及其上述实现方式，在第一方面的另一种实现方式中，该接收网络设备发送的切换指示信息，包括：接收该网络设备发送的RRC专用信令、下行链路控制信息(downlink control information，DCI)或MAC控制单元(control element，CE)，该RRC专用信令、DCI或MAC CE包括该切换指示信息。
结合第一方面及其上述实现方式，在第一方面的另一种实现方式中，该物理层从第一BWP切换为第二BWP，包括：根据预设周期，将该物理层从该第一BWP切换为该第二BWP。
可选的，该预设周期可以由网络设备为终端设备配置。
因此，本申请实施例的用于切换BWP的方法，在物理层切换BWP时，通过向MAC层发送切换标识，使得MAC层对应的参数也进行切换，从而可以使用与切换后的BWP对应的参数，执行MAC层的相关操作，从而提高传输效率。
第二方面，提供了一种终端设备，用于执行上述第一方面或第一方面的任意可能的实现方式中的方法。具体地，该终端设备包括用于执行上述第一方面或第一方面的任意可能的实现方式中的方法的单元。
第三方面，提供了一种终端设备，包括：存储单元和处理器，该存储单元用于存储指令，该处理器用于执行该存储器存储的指令，并且当该处理器执行该存储器存储的指令时，该执行使得该处理器执行第一方面或第一方面的任意可能的实现方式中的方法。
第四方面，提供了一种计算机可读介质，用于存储计算机程序，该计算机程序包括用于执行第一方面或第一方面的任意可能的实现方式中的方法的指令。
第五方面，提供了一种包括指令的计算机程序产品，当计算机运行所述计算机程序产品的所述指时，所述计算机执行上述第一方面或第一方面的任意可能的实现方式中的用于切换BWP的方法。具体地，该计算机程序产品可以运行于上述第二方面的终端设备上。
附图说明
图1是根据本申请实施例的用于切换BWP的方法的示意性流程图。
图2是根据本申请实施例的终端设备的示意性框图。
图3是根据本申请实施例的终端设备的另一示意性框图。
具体实施方式
下面将结合附图，对本申请实施例中的技术方案进行描述。
本申请实施例的技术方案可以应用于各种通信***，例如：全球移动通讯(global system of mobile communication，GSMC)***、码分多址(code division multiple access，CDMA)***、宽带码分多址(wideband code division multiple access，WCDMA)***、通用分组无线业务(general packet radio service，GPRS)、长期演进(long term evolution，LTE)***、LTE频分双工(frequency division duplex，FDD)***、LTE时分双工(Time Division Duplex，TDD)、通用移动通信***(universal mobile telecommunication system，UMTS)、全球互联微波接入(worldwide interoperability for microwave access，WiMAX)通信***、未来的第五代(5th generation，5G)***或新无线(new radio，NR)等。
本申请实施例中的终端设备可以指用户设备、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。终端设备还可以是蜂窝电话、无绳电话、会话启动协议(session initiation protocol，SIP)电话、无线本地环路(wireless local loop，WLL)站、个人数字处理(personal digital assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备，未来5G网络中的终端设备或者未来演进的公用陆地移动通信网络(public land mobile network，PLMN)中的终端设备等，本申请实施例对此并不限定。
本申请实施例中的网络设备可以是用于与终端设备通信的设备，该网络设备可以是GSMC***或CDMA中的基站(base transceiver station，BTS)，也可以是WCDMA***中的基站(NodeB，NB)，还可以是LTE***中的演进型基站(evolutional NodeB，eNB或eNodeB)，还可以是云无线接入网络(cloud radio access network，CRAN)场景下的无线控制器，或者该网络设备可以为中继站、接入点、车载设备、可穿戴设备以及未来5G网络中的 网络设备或者未来演进的PLMN网络中的网络设备等，本申请实施例并不限定。
图1示出了根据本申请实施例的用于切换BWP的方法100的示意性流程图，该方法100可以由终端设备执行。如图1所示，该方法100包括：S110，在物理层从第一BWP切换为第二BWP的情况下，将MAC层的参数从第一参数切换为第二参数，该第一参数对应于该第一BWP，该第二参数对应于该第二BWP；S120，根据该第二参数，执行该MAC层对应的操作。
在本申请实施例中，在RRC连接状态，网络设备可以为终端设备配置一个或者多个BWP，也允许网络设备通过发送指令，配置终端设备在不同的BWP之间进行切换，即去激活(deactivate)当前的BWP，而激活一个新的BWP。其中，激活任意一个BWP是指终端设备期望在该BWP规定的带宽上接收信号，其包括(上下行)数据传输、***消息等等。
在本申请实施例中，终端设备可以根据网络设备发送的切换指示信息，或者根据预设周期，确定切换BWP。具体地，终端设备可以接收网络设备发送的切换指示信息，该切换指示信息用于指示该终端设备从当前的BWP切换至新的BWP，例如，终端设备当前处于第一BWP，根据该切换指示信息可以指示该终端设备从该第一BWP切换为第二BWP。其中，该切换指示信息可以包括该第二BWP的标识，以便于终端设备根据该切换指示信息中的第二BWP的标识，从第一BWP切换为该第二BWP。
可选的，该终端设备接收网络设备发送的切换指示信息，可以通过RRC专用信令(dedicated signaling)承载该切换指示信息，或者通过DCI或MAC CE包括该切换指示信息，但本申请实施例并不限于此。
可选的，该终端设备还可以根据预设周期，切换BWP。具体地，可以在终端设备中维护一个定时器(timer)，基于该timer确定是否执行BWP切换。例如，设置该timer等于预设周期值，该预设周期值可以由网络设备配置，或者终端设备可以根据实际应用设置，根据该预设周期值，确定是否切换BWP。
应理解，终端设备确定执行BWP，可以将物理层从当前的第一BWP切换至第二BWP，具体地，将第一BWP去激活，将第二BWP激活。
终端设备将物理层从第一BWP切换至第二BWP后，可以将MAC层从第一参数切换为第二参数，其中，第一参数对应于第一BWP，第二参数对 应于第二BWP。具体地，终端设备在物理层执行BWP切换，可以从物理层向MAC层发送切换标识，通过该切换标识指示该物理层执行了BWP切换。其中，该切换标识可以为第二BWP的标识，以便于确定MAC层新的BWP对应的参数，即根据该第二BWP的标识确定物理层已经切换至该第二BWP，则确定MAC层对应第二BWP的第二参数。
在本申请实施例中，将MAC层的第一参数切换为第二参数，该需要切换的MAC层的参数可以包括：PUCCH资源参数、PDCCH监听资源参数以及SPS资源参数中的至少一个。具体地，该PUCCH资源参数可以用于指示PUCCH资源，该PUCCH资源可以为一个周期性的PUCCH资源，该PUCCH资源可以用于S)或HARQ反馈信息。PDCCH监听资源参数可以用于指示PDCCH监听资源，该PDCCH监听资源参数可以用于指示一个PDCCH搜索区域(search space)的开始位置。SPS资源参数可以用于指示SPS资源，该SPS资源可以包括配置的下行分配(configured downlink assignment)和配置的上行授权(configured uplink grant)，另外，该SPS资源参数可以为由RRC配置并由L1信令控制的SPS资源参数，也就是与LTE SPS类似，有RRC配置资源周期，再由L1的DCI控制资源激活使用以及资源的频域位置；该SPS资源参数也可以为只由RRC配置的半静态配置资源参数，即指示纯RRC配置的半静态资源，没有L1DCI的控制，RRC配置了包括资源周期和频域资源位置等等参数。
具体的，将MAC层的第一参数切换为第二参数，例如，该MAC层的第一参数可以包括与第一BWP对应的PUCCH资源参数、PDCCH监听资源参数以及SPS资源参数，则对应的，切换后的第二参数可以包括与第二BWP对应的PUCCH资源参数、PDCCH监听资源参数以及SPS资源参数。
在本申请实施例中，终端设备将物理层的第一BWP切换为第二BWP，也会将MAC层的与第一BWP对应的第一参数切换为与第二BWP对应的第二参数，则终端设备可以使用第二BWP，也可以根据该第二参数，执行MAC层的相关操作。
因此，本申请实施例的用于切换BWP的方法，在物理层切换BWP时，通过向MAC层发送切换标识，使得MAC层对应的参数也进行切换，从而可以使用与切换后的BWP对应的参数，执行MAC层的相关操作，从而提高传输效率。
应理解，在本申请的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
另外，本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
上文中结合图1，详细描述了根据本申请实施例的用于切换BWP的方法，下面将结合图2至图3，描述根据本申请实施例的终端设备。
如图2所示，根据本申请实施例的终端设备200包括：切换单元210和处理单元220，可选的，还可以包括接收单元230。
具体地，该切换单元210用于：在物理层从第一BWP切换为第二BWP的情况下，将MAC层的参数从第一参数切换为第二参数，该第一参数对应于该第一BWP，该第二参数对应于该第二BWP；该处理单元220用于：根据该第二参数，执行该MAC层对应的操作。
因此，本申请实施例的终端设备，在物理层切换BWP时，通过向MAC层发送切换标识，使得MAC层对应的参数也进行切换，从而可以使用与切换后的BWP对应的参数，执行MAC层的相关操作，从而提高传输效率。
可选的，该第二参数包括与该第二BWP对应的PUCCH资源参数、PDCCH监听资源参数和SPS资源参数中的至少一个。
可选的，该切换单元210具体用于：在该物理层从该第一BWP切换为该第二BWP之后，在该MAC层接收来自该物理层的切换标识；根据该切换标识，将该MAC层的参数从该第一参数切换为该第二参数。
可选的，该切换标识为该第二BWP的标识。
可选的，接收单元230用于：接收网络设备发送的切换指示信息；该切换单元210还用于：根据该切换指示信息，将该物理层从该第一BWP切换为该第二BWP。
可选的，该接收单元230具体用于：接收该网络设备发送的RRC专用信令、DCI或MAC CE，该RRC专用信令、DCI或MAC CE包括该切换指示信息。
可选的，该切换单元210还用于：根据预设周期，将该物理层从该第一 BWP切换为该第二BWP。
应理解，根据本申请实施例的终端设备200可对应于执行本申请实施例中的方法100，并且终端设备200中的各个单元的上述和其它操作和/或功能分别为了实现图1中的方法的终端设备相应流程，为了简洁，在此不再赘述。
因此，本申请实施例的终端设备，在物理层切换BWP时，通过向MAC层发送切换标识，使得MAC层对应的参数也进行切换，从而可以使用与切换后的BWP对应的参数，执行MAC层的相关操作，从而提高传输效率。
图3示出了根据本申请实施例的终端设备300的示意性框图，如图3所示，该终端设备300包括：处理器310和收发器320，处理器310和收发器320相连，可选地，该终端设备300还包括存储器330，存储器330与处理器310相连。其中，处理器310、存储器330和收发器320之间通过内部连接通路互相通信，传递和/或控制数据信号，该存储器330可以用于存储指令，该处理器310用于执行该存储器330存储的指令，以控制收发器320发送信息或信号，该处理器310用于：在物理层从第一BWP切换为第二BWP的情况下，将MAC层的参数从第一参数切换为第二参数，该第一参数对应于该第一BWP，该第二参数对应于该第二BWP；根据该第二参数，执行该MAC层对应的操作。
因此，本申请实施例的终端设备，在物理层切换BWP时，通过向MAC层发送切换标识，使得MAC层对应的参数也进行切换，从而可以使用与切换后的BWP对应的参数，执行MAC层的相关操作，从而提高传输效率。
可选的，该第二参数包括与该第二BWP对应的PUCCH资源参数、PDCCH监听资源参数和SPS资源参数中的至少一个。
可选的，该处理器310用于：在该物理层从该第一BWP切换为该第二BWP之后，在该MAC层接收来自该物理层的切换标识；根据该切换标识，将该MAC层的参数从该第一参数切换为该第二参数。
可选的，该切换标识为该第二BWP的标识。
可选的，该收发器320用于：接收网络设备发送的切换指示信息；该处理器310用于：根据该切换指示信息，将该物理层从该第一BWP切换为该第二BWP。
可选的，该收发器320用于：接收该网络设备发送的RRC专用信令、DCI或MAC CE，该RRC专用信令、DCI或MAC CE包括该切换指示信息。
可选的，该处理器310用于：根据预设周期，将该物理层从该第一BWP切换为该第二BWP。
应理解，根据本申请实施例的终端设备300可对应于本申请实施例中的终端设备200，并可以对应于执行根据本申请实施例的方法100中的相应主体，并且终端设备300中的各个单元的上述和其它操作和/或功能分别为了实现图1中的方法中终端设备的相应流程，为了简洁，在此不再赘述。
因此，本申请实施例的终端设备，在物理层切换BWP时，通过向MAC层发送切换标识，使得MAC层对应的参数也进行切换，从而可以使用与切换后的BWP对应的参数，执行MAC层的相关操作，从而提高传输效率。
应注意，本申请上述方法实施例可以应用于处理器中，或者由处理器实现。处理器可能是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(digital signal processor，DSP)、专用集成电路(application specific integrated circuit，ASIC)、现成可编程门阵列(field programmable gate array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器，处理器读取存储器中的信息，结合其硬件完成上述方法的步骤。
可以理解，本申请实施例中的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(read-only memory，ROM)、可编程只读存储器(programmable rom，PROM)、可擦除可编程只读存储器(erasable PROM，EPROM)、电可擦除可编程只读存储器(electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(static RAM，SRAM)、动态随机存取存储器(dynamic RAM， DRAM)、同步动态随机存取存储器(synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM，DR RAM)。应注意，本文描述的***和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的***、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的***、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个***，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请 的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(read-only memory，ROM)、随机存取存储器(random access memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (14)

  1. 一种用于切换带宽部分的方法，其特征在于，包括：
    在物理层从第一带宽部分切换为第二带宽部分的情况下，将介质访问控制MAC层的参数从第一参数切换为第二参数，所述第一参数对应于所述第一带宽部分，所述第二参数对应于所述第二带宽部分；
    根据所述第二参数，执行所述MAC层对应的操作。
  2. 根据权利要求1所述的方法，其特征在于，所述第二参数包括与所述第二带宽部分对应的物理上行控制信道PUCCH资源参数、物理下行控制信道PDCCH监听资源参数和半静态调度SPS资源参数中的至少一个。
  3. 根据权利要求1或2所述的方法，其特征在于，所述将MAC层的参数从第一参数切换为第二参数，包括：
    在所述物理层从所述第一带宽部分切换为所述第二带宽部分之后，在所述MAC层接收来自所述物理层的切换标识；
    根据所述切换标识，将所述MAC层的参数从所述第一参数切换为所述第二参数。
  4. 根据权利要求3所述的方法，其特征在于，所述切换标识为所述第二带宽部分的标识。
  5. 根据权利要求1至4中任一项所述的方法，其特征在于，所述物理层从第一带宽部分切换为第二带宽部分，包括：
    接收网络设备发送的切换指示信息；
    根据所述切换指示信息，将所述物理层从所述第一带宽部分切换为所述第二带宽部分。
  6. 根据权利要求5所述的方法，其特征在于，所述接收网络设备发送的切换指示信息，包括：
    接收所述网络设备发送的无线资源控制RRC专用信令、下行链路控制信息DCI或MAC控制单元CE，所述RRC专用信令、DCI或MAC CE包括所述切换指示信息。
  7. 根据权利要求1至4中任一项所述的方法，其特征在于，所述物理层从第一带宽部分切换为第二带宽部分，包括：
    根据预设周期，将所述物理层从所述第一带宽部分切换为所述第二带宽部分。
  8. 一种终端设备，其特征在于，包括：切换单元，用于在物理层从第一带宽部分切换为第二带宽部分的情况下，将介质访问控制MAC层的参数从第一参数切换为第二参数，所述第一参数对应于所述第一带宽部分，所述第二参数对应于所述第二带宽部分；处理单元，用于根据所述第二参数，执行所述MAC层对应的操作。
  9. 根据权利要求8所述的终端设备，其特征在于，所述第二参数包括与所述第二带宽部分对应的物理上行控制信道PUCCH资源参数、物理下行控制信道PDCCH监听资源参数和半静态调度SPS资源参数中的至少一个。
  10. 根据权利要求8或9所述的终端设备，其特征在于，所述切换单元具体用于：在所述物理层从所述第一带宽部分切换为所述第二带宽部分之后，在所述MAC层接收来自所述物理层的切换标识；根据所述切换标识，将所述MAC层的参数从所述第一参数切换为所述第二参数。
  11. 根据权利要求10所述的终端设备，其特征在于，所述切换标识为所述第二带宽部分的标识。
  12. 根据权利要求8至11中任一项所述的终端设备，其特征在于，所述终端设备还包括：接收单元，用于接收网络设备发送的切换指示信息；所述切换单元还用于：根据所述切换指示信息，将所述物理层从所述第一带宽部分切换为所述第二带宽部分。
  13. 根据权利要求12所述的终端设备，其特征在于，所述接收单元具体用于：接收所述网络设备发送的无线资源控制RRC专用信令、下行链路控制信息DCI或MAC控制单元CE,所述RRC专用信令、DCI或MAC CE包括所述切换指示信息。
  14. 根据权利要求8至11中任一项所述的终端设备，其特征在于，所述切换单元还用于：根据预设周期，将所述物理层从所述第一带宽部分切换为所述第二带宽部分。
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