WO2024103234A1 - 无线通信方法及装置、终端设备、网络设备 - Google Patents

无线通信方法及装置、终端设备、网络设备 Download PDF

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Publication number
WO2024103234A1
WO2024103234A1 PCT/CN2022/131781 CN2022131781W WO2024103234A1 WO 2024103234 A1 WO2024103234 A1 WO 2024103234A1 CN 2022131781 W CN2022131781 W CN 2022131781W WO 2024103234 A1 WO2024103234 A1 WO 2024103234A1
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Prior art keywords
bwp
terminal device
information
activated
data
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PCT/CN2022/131781
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English (en)
French (fr)
Inventor
贺传峰
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Oppo广东移动通信有限公司
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Priority to PCT/CN2022/131781 priority Critical patent/WO2024103234A1/zh
Publication of WO2024103234A1 publication Critical patent/WO2024103234A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems

Definitions

  • the embodiments of the present application relate to the field of mobile communication technology, and specifically to a wireless communication method and apparatus, terminal equipment, and network equipment.
  • Embodiments of the present application provide a wireless communication method and apparatus, a terminal device, and a network device.
  • the present application also provides a wireless communication method, the method comprising:
  • the terminal device receives first information on a first bandwidth part (Bandwidth Part, BWP), wherein the first information is used to indicate a second BWP; the first BWP is a BWP currently activated by the terminal device;
  • BWP Bandwidth Part
  • the terminal device communicates on the second BWP.
  • the present application also provides a wireless communication method, the method comprising:
  • the network device sends first information to the terminal device on the first BWP, where the first information is used to indicate the second BWP; the first BWP is the BWP currently activated by the terminal device;
  • the network device communicates with the terminal device on the second BWP.
  • the embodiment of the present application further provides a wireless communication device, applied to a terminal device, including:
  • a first transceiver unit is configured to receive first information on a first BWP, where the first information is used to indicate a second BWP; the first BWP is a BWP currently activated by the terminal device;
  • the first transceiver unit is further configured to communicate on the second BWP.
  • the present application also provides a wireless communication device, which is applied to a network device, and the device includes:
  • the second transceiver unit is configured to send first information to the terminal device on the first BWP, where the first information is used to indicate the second BWP; the first BWP is the BWP currently activated by the terminal device;
  • the second transceiver unit is further configured to communicate with the terminal device on the second BWP.
  • the communication device provided in the embodiment of the present application may be a terminal device in the above solution or a network device in the above solution, and the communication device includes a processor and a memory.
  • the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the above wireless communication method.
  • the chip provided in the embodiment of the present application is used to implement the above-mentioned wireless communication method.
  • the chip includes: a processor, which is used to call and run a computer program from a memory, so that a device equipped with the chip executes the above-mentioned wireless communication method.
  • the computer-readable storage medium provided in the embodiment of the present application is used to store a computer program, which enables a computer to execute the above-mentioned wireless communication method.
  • the computer program product provided in the embodiment of the present application includes computer program instructions, which enable a computer to execute the above-mentioned wireless communication method.
  • the computer program provided in the embodiment of the present application when executed on a computer, enables the computer to execute the above-mentioned wireless communication method.
  • the terminal device can use the second BWP to perform data transmission under the instruction of the network device, thereby improving resource utilization.
  • FIG1 is a schematic diagram of a communication architecture provided in an embodiment of the present application.
  • FIG2 is a schematic diagram of the structure of a terminal device receiver system provided in an embodiment of the present application.
  • FIG3A is a timing diagram 1 of cross-BWP scheduling provided by an embodiment of the present application.
  • FIG3B is a second timing diagram of cross-BWP scheduling provided by an embodiment of the present application.
  • FIG4 is a flowchart of a wireless communication method according to an embodiment of the present application.
  • FIG5 is a timing diagram of a special signal transmission provided in an embodiment of the present application.
  • FIG6 is a second flow chart of a wireless communication method provided in an embodiment of the present application.
  • FIG7A is a third flow chart of a wireless communication method provided in an embodiment of the present application.
  • FIG7B is a fourth flow chart of a wireless communication method provided in an embodiment of the present application.
  • FIG8 is a signal transmission timing diagram 1 provided in an embodiment of the present application.
  • FIG9 is a second timing diagram of a signal transmission provided in an embodiment of the present application.
  • FIG10A is a third timing diagram of a signal transmission provided in an embodiment of the present application.
  • FIG10B is a fourth timing diagram of signal transmission provided in an embodiment of the present application.
  • FIG11 is a flowchart diagram 5 of a wireless communication method provided in an embodiment of the present application.
  • FIG12 is a schematic diagram of a structure of a wireless communication device provided in an embodiment of the present application.
  • FIG13 is a second schematic diagram of the structure of a wireless communication device provided in an embodiment of the present application.
  • FIG14 is a schematic structural diagram of a communication device provided in an embodiment of the present application.
  • FIG15 is a schematic structural diagram of a chip according to an embodiment of the present application.
  • FIG16 is a schematic block diagram of a communication system provided in an embodiment of the present application.
  • FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present application.
  • the communication system 100 may include a terminal device 110 and a network device 120.
  • the network device 120 may communicate with the terminal device 110 via an air interface.
  • the terminal device 110 and the network device 120 support multi-service transmission.
  • LTE Long Term Evolution
  • TDD LTE Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • IoT Internet of Things
  • NB-IoT Narrow Band Internet of Things
  • eMTC enhanced Machine-Type Communications
  • 5G communication system also called New Radio (NR) communication system
  • NR New Radio
  • the network device 120 may be an access network device that communicates with the terminal device 110.
  • the access network device may provide communication coverage for a specific geographical area, and may communicate with the terminal device 110 (eg, UE) located in the coverage area.
  • the network device 120 can be an evolved base station (Evolutional Node B, eNB or eNodeB) in a Long Term Evolution (LTE) system, or a Next Generation Radio Access Network (NG RAN) device, or a base station (gNB) in an NR system, or a wireless controller in a Cloud Radio Access Network (CRAN), or the network device 120 can be a relay station, an access point, an in-vehicle device, a wearable device, a hub, a switch, a bridge, a router, or a network device in a future evolved Public Land Mobile Network (PLMN), etc.
  • Evolutional Node B, eNB or eNodeB in a Long Term Evolution (LTE) system
  • NG RAN Next Generation Radio Access Network
  • gNB base station
  • CRAN Cloud Radio Access Network
  • PLMN Public Land Mobile Network
  • the terminal device 110 may be any terminal device, including but not limited to a terminal device connected to the network device 120 or other terminal devices by wire or wireless connection.
  • the terminal device 110 may refer to an access terminal, a user equipment (UE), a user unit, a user 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 a user device.
  • UE user equipment
  • the access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, an IoT device, a satellite handheld terminal, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a 5G network, or a terminal device in a future evolution network, etc.
  • SIP Session Initiation Protocol
  • IoT IoT device
  • satellite handheld terminal a Wireless Local Loop (WLL) station
  • PDA Personal Digital Assistant
  • PDA Personal Digital Assistant
  • the terminal device 110 can be used for device to device (Device to Device, D2D) communication.
  • D2D Device to Device
  • the wireless communication system 100 may further include a core network device 130 that communicates with the network device 120.
  • the core network device 130 may be a 5G core network (5G Core, 5GC) device, such as an access and mobility management function (Access and Mobility Management Function, AMF), and another example, an authentication server function (Authentication Server Function, AUSF), and another example, a user plane function (User Plane Function, UPF), and another example, a session management function (Session Management Function, SMF).
  • 5G Core, 5GC 5G Core, 5GC
  • AMF Access and Mobility Management Function
  • AUSF Authentication Server Function
  • UPF User Plane Function
  • SMF Session Management Function
  • the core network device 130 may also be an evolved packet core (Evolved Packet Core, EPC) device of the LTE network, such as a session management function + core network data gateway (Session Management Function+Core Packet Gateway, SMF+PGW-C) device.
  • EPC evolved Packet Core
  • SMF+PGW-C Session Management Function+Core Packet Gateway
  • SMF+PGW-C Session Management Function+Core Packet Gateway
  • SMF+PGW-C Session Management Function+Core Packet Gateway
  • SMF+PGW-C Session Management Function+Core Packet Gateway
  • SMF+PGW-C Session Management Function+Core Packet Gateway
  • the various functional units in the communication system 100 can also establish connections and achieve communication through the next generation network (NG) interface.
  • NG next generation network
  • the terminal device establishes an air interface connection with the access network device through the NR interface for transmitting user plane data and control plane signaling; the terminal device can establish a control plane signaling connection with the AMF through the NG interface 1 (N1 for short); the access network device, such as the next generation wireless access base station (gNB), can establish a user plane data connection with the UPF through the NG interface 3 (N3 for short); the access network device can establish a control plane signaling connection with the AMF through the NG interface 2 (N2 for short); the UPF can establish a control plane signaling connection with the SMF through the NG interface 4 (N4 for short); the UPF can exchange user plane data with the data network through the NG interface 6 (N6 for short); the AMF can establish a control plane signaling connection with the SMF through the NG interface 11 (N11 for short); the SMF can establish a control plane signaling connection with the PCF through the NG interface 7 (N7 for short).
  • the access network device such as the next generation wireless access base station
  • FIG1 exemplarily shows a network device, a core network device and two terminal devices.
  • the wireless communication system 100 may include multiple network devices and each network device may include other number of terminal devices within its coverage area, which is not limited in the embodiments of the present application.
  • FIG. 1 is only an example of the system to which the present application is applicable.
  • the method shown in the embodiment of the present application can also be applied to other systems.
  • system and “network” are often used interchangeably in this article.
  • the term “and/or” in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships.
  • a and/or B can represent: A exists alone, A and B exist at the same time, and B exists alone.
  • the character "/" in this article generally indicates that the associated objects before and after are in an "or” relationship.
  • the "indication" mentioned in the embodiment of the present application can be a direct indication, an indirect indication, or an indication of an association relationship.
  • a indicates B which can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, B can be obtained through C; it can also mean that A and B have an association relationship.
  • the "correspondence” mentioned in the embodiment of the present application can mean that there is a direct or indirect correspondence relationship between the two, or it can mean that there is an association relationship between the two, or it can mean that the relationship between indicating and being indicated, configuring and being configured, etc.
  • predefined or “predefined rules” mentioned in the embodiments of the present application can be implemented by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in devices (for example, including terminal devices and network devices), and the present application does not limit its specific implementation method.
  • predefined may refer to the definition in the protocol.
  • protocol may refer to a standard protocol in the field of communications, such as LTE protocols, NR protocols, and related protocols used in future communication systems, and the present application does not limit this.
  • the standard discussion version 18 (R18) considers introducing a wake-up receiver (WUR) for terminal devices, and receiving the wake-up signal (WUS) through WUR.
  • WUR has the characteristics of extremely low cost, extremely low complexity and extremely low power consumption, and it mainly receives the wake-up signal based on envelope detection. Therefore, the WUS received by the wake-up receiver is different from the modulation method and waveform of the signal carried by the physical downlink control channel (PDCCH) defined in R16 and R17.
  • WRS mainly modulates the envelope signal by amplitude shift keying (ASK) of the carrier signal.
  • ASK amplitude shift keying
  • the demodulation of the envelope signal can be completed based on the energy provided by the wireless RF signal to drive the low-power circuit, so WUR can be a passive receiver.
  • WUR can also be powered by the terminal device. Regardless of the power supply method, the WUR greatly reduces the power consumption compared with the traditional receiver of the terminal device.
  • WUR can be combined with the main receiver in the terminal device as an additional module of the main receiver, or it can be used alone as a wake-up function module of the terminal device.
  • the main receiver and WUR in the terminal device share a set of RF antennas.
  • WUR can receive WUS. If the terminal device needs to turn on the main receiver, then WUR can send a wake-up message to the main receiver to instruct the main receiver to turn on. Otherwise, the main receiver of the terminal device can be in a closed state.
  • a terminal device can have at most one activated downlink BWP and one activated uplink BWP at a time.
  • the network device can configure up to 4 uplink BWPs and up to 4 downlink BWPs for a connected terminal device.
  • the activated uplink BWP is one of the configured up to 4 uplink BWPs
  • the activated downlink BWP can be one of the configured up to 4 downlink BWPs.
  • the network device can configure 4 uplink BWPs (BWP index values are 0, 1, 2, 3) and 4 downlink BWPs (BWP index values are 0, 1, 2, 3) for a connected terminal device.
  • the index value of the currently activated uplink BWP can be 0, that is, uplink BWP 0, and the index value of the currently activated downlink BWP can be 1, that is, downlink BWP 1. If the network device instructs to switch downlink BWP 0 to downlink BWP 2, the uplink BWP activated by the terminal device can remain unchanged.
  • the uplink BWP and the downlink BWP need to be switched in pairs.
  • the uplink BWP and the downlink BWP with the same BWP index indicated by the network device are activated at the same time.
  • the terminal device supports multiple BWP switching modes, including but not limited to BWP switching based on downlink control information (Downlink Control Information, DCI) control, BWP switching based on radio resource control (Radio Resource Control, RRC) signaling, BWP switching based on timer, and BWP switching triggered by random access channel (Random Access Channel, RACH).
  • DCI Downlink Control Information
  • RRC Radio Resource Control
  • RACH Random Access Channel
  • a BWP indication field (Bandwidth part indicator) may be included in the DCI for data scheduling for the terminal device, and the number of bits of the indication field is determined according to the number of BWPs configured by the network device to the terminal device, for example, the number of bits of the indication field may be 0, 1 or 2.
  • the bit length of the BWP indication field is log 2 (n BWP ), where n BWP is the number of BWPs configured by the network device for the terminal device.
  • n BWP,RRC n BWP,RRC + 1.
  • the BWP indication field is the same as the BWP-ID configured by the high-level parameters.
  • n BWP n BWP,RRC .
  • Table 1 shows the corresponding relationship between the BWP indication field value and the BWP when the network device is configured with 4 BWPs through high-level signaling.
  • the BWP indication field value when the BWP indication field value is 00, it can indicate the first BWP configured by the high-level signaling. When the BWP indication field value is 01, it can indicate the second BWP configured by the high-level signaling. When the BWP indication field value is 10, it can indicate the third BWP configured by the high-level signaling. When the BWP value is 11, it can indicate the fourth BWP configured by the high-level signaling.
  • the network device may indicate an indication value corresponding to a BWP different from the BWP currently located by the terminal device in the BWP indication field in the DCI sent to the terminal device. After receiving the BWP, the terminal device performs the BWP switching.
  • the terminal device can also switch the BWP based on a timer.
  • the terminal device can configure a BWP timer, so that the terminal device can reset the BWP timer every time it receives a DCI schedule in the current BWP, and then continue to count.
  • the terminal device can switch to the default BWP.
  • BWP can be applied to both PDCCH reception and Physical Downlink Shared Channel (PDSCH) reception, and each BWP contains a control resource set (CORESET).
  • CORESET control resource set
  • the NR system supports cross-BWP scheduling.
  • the terminal device receives a DCI containing a BWP indication information that triggers a BWP switch. If the BWP indicated by the BWP indication information is different from the currently activated BWP, a BWP switch will occur before the PDSCH scheduled by the DCI, so that the PDCCH and the PDSCH scheduled by it will be in different BWPs. This operation can be called cross-BWP scheduling.
  • the DCI that triggers BWP switching in BWP 1 can directly schedule the PDSCH in BWP 2 after the BWP switching is completed, so that the terminal device can immediately receive data in the scheduled PDSCH after the activated BWP switches to BWP 2.
  • the scheduling DCI to indicate BWP switching is the most efficient way to achieve "cross-BWP scheduling".
  • a dedicated BWP switching DCI format can also be used, but it is difficult to achieve fast scheduling.
  • the last DCI in BWP 1 only triggers BWP switching, but is not used to schedule PDSCH.
  • the terminal device detects a DCI scheduling PDSCH in the switched BWP 2, obtains the scheduling information of PDSCH, and receives data in the scheduled PDSCH at a later time.
  • the BWP indication information in the DCI indicates the BWP switching
  • the resource indication information in the DCI is used to indicate the time-frequency resources on the new BWP after the BWP switching.
  • the BWP switching and cross-BWP scheduling occur simultaneously through the indication of the DCI.
  • scheduling DCI the DCI indicating BWP switching and cross-BWP scheduling is referred to as scheduling DCI.
  • the time-frequency resources carrying special signals are reused with the time-frequency resources of existing NR channels and signals to avoid the large resource overhead caused by configuring dedicated time-frequency resources for special signals.
  • special signals such as WUS, paging signals, synchronization signal blocks, etc.
  • the time-frequency resources carrying special signals are not at the edge of the existing system bandwidth, some resource "holes" will be formed in the middle of the frequency domain resources within the system bandwidth, causing the network equipment to be unable to schedule continuous frequency domain resources for data transmission, resulting in a decrease in resource utilization. Since the range of frequency domain resources for data scheduling is the frequency domain resources within the activated BWP, the corresponding BWP can be configured for the special signal separately, without having to configure the frequency domain resources for special signals on the data scheduling BWP to generate resource "holes".
  • the network device can use the BWP configured for the special signal to schedule resources when the special signal is not sent. There is currently no clear method for how to schedule these BWPs.
  • the wireless communication method provided in the embodiment of the present application may include step 410 and step 420 .
  • Step 410 The terminal device receives first information on a first BWP, where the first information is used to indicate a second BWP, wherein the first BWP is a BWP currently activated by the terminal device.
  • Step 420 The terminal device communicates on the second BWP.
  • the first information can be sent by the network device, or forwarded by the network device through other devices, and the embodiment of the present application does not limit this.
  • the first BWP may be a BWP currently activated by the terminal device.
  • the first BWP may be configured by the network device, or pre-configured, or agreed upon by a protocol, which is not limited in the embodiments of the present application.
  • the network device can send the first information to the terminal device via the BWP currently activated by the terminal device. Accordingly, the terminal device can receive the first information sent by the network device on at least part of the time-frequency resources of the currently activated BWP.
  • the first information may indicate a second BWP different from the first BWP. It is understandable that after receiving the first information, the terminal device may communicate with the network device through the second BWP indicated by the first information.
  • the second BWP may be a BWP where the special signal is located, that is, a BWP configured by the network device for transmitting the special signal.
  • the special signal may be a signal used to wake up the main receiver of the terminal device to transmit data and/or control information, thereby reducing the power consumption of the terminal device.
  • the special signal may be a WUS, an energy-saving signal, a paging signal, etc., which is not limited in the embodiments of the present application.
  • the second BWP may be at least one of the following: a BWP where the WUS is located, a BWP where the energy-saving signal is located, and a BWP where the paging signal is located.
  • the WUS and the energy-saving signal may be the same signal or different signals, and the embodiment of the present application does not limit this.
  • the first information can be physical layer control signaling, such as DCI; the first information can also be high-level control signaling, such as radio resource control (Radio Resource Control, RRC) signaling, and the first information can also be dedicated signaling, which is not limited in the embodiments of the present application.
  • DCI physical layer control signaling
  • RRC Radio Resource Control
  • the first information may include BWP indication information
  • the BWP indication information may carry identification information, an index value, and other information of the second BWP that can uniquely identify the second BWP.
  • time-frequency resources on the second BWP corresponding to the special signal can be used for the transmission of the special signal. Since the special signal is not always transmitted, other data can be transmitted on the time-frequency resources where the special signal is not transmitted to improve resource utilization.
  • the network device can instruct the terminal device to communicate on the second BWP where the special signal is located.
  • the second BWP can be used to transmit data, or the second BWP can be used to transmit data and control information. It can be understood that communicating on the second BWP can include transmitting data on the second BWP, or transmitting data and control information on the second BWP, and the embodiment of the present application does not limit this.
  • the data transmitted on the second BWP can be PDSCH
  • the control information can be PDCCH.
  • the terminal device can reuse the second BWP configured by the network device for special signals for communication according to the instruction of the network device, which effectively improves the utilization rate of spectrum resources.
  • the frequency domain bandwidth of the second BWP corresponding to the special signal is generally small and is mainly used for sending the special signal.
  • the special signal is not always sent.
  • the special signal may be sent only during the continuous transmission time (on duration) within a transmission cycle, and not during the non-continuous transmission time (off duration).
  • the time-frequency resources on the second BWP corresponding to the special signal can be used for other types of communications.
  • the network device can instruct the terminal device to communicate on the second BWP configured separately for the special signal through the first information.
  • the network device wants to perform cross-BWP scheduling, it will also trigger the terminal device to switch BWP, that is, the BWP activated by the scheduled terminal device is switched to the second BWP where the special signal is located.
  • BWP the BWP activated by the scheduled terminal device is switched to the second BWP where the special signal is located.
  • the second BWP where the special signal is located is mainly used for the transmission of special signals, and the PDCCH search space is not necessarily configured.
  • the terminal device uses the second BWP as the activated BWP, it may cause the terminal device to no longer receive control information to switch to other BWPs. In addition, the bandwidth of the second BWP corresponding to the special signal is generally small. If the network device needs to interact with the terminal device for data, it does not want the terminal device to switch to the second BWP where the special signal is located and use the second BWP as the activated BWP.
  • the terminal device after the terminal device completes the communication on the second BWP, it can still use the first BWP as the activated BWP and re-communicate on the first BWP. That is to say, after the communication is completed on the second BWP, the terminal device can actively communicate on the originally activated first BWP.
  • the terminal device may not switch the state of the activated BWP during the process of responding to the first information. That is, the BWP activated by the terminal device may remain unchanged as the first BWP, and the terminal device only performs one data transmission on the second BWP. In this way, the terminal device can continue to perform subsequent communications with the first BWP after completing the data transmission.
  • the terminal device can adaptively switch the currently activated BWP in the process of responding to the first information. Specifically, the terminal device can complete the switching of the activated BWP twice. In the first switching, the activated BWP can be switched from the first BWP to the second BWP. In the second switching, the terminal device can actively switch the activated BWP from the second BWP to the original first BWP, so that the terminal device can perform subsequent communications again in the originally activated first BWP.
  • the terminal device completes the communication on the second BWP
  • the communication on the original first BWP again can be actively operated by the terminal device, rather than instructed or scheduled by the network device.
  • the terminal device can, under the instruction of the network device, reuse the second BWP where the special signal is located for communication, and re-communicate on the originally activated first BWP after the communication is completed.
  • This can fully utilize the BWP where the special signal is located, improve resource utilization, and avoid restrictions on the terminal device's communication on the second BWP.
  • the communication of the terminal device through the second BWP in step 420 can be implemented in the following manner:
  • Step 420a The terminal device switches the activated BWP from the first BWP to the second BWP.
  • the terminal device can communicate on the second BWP.
  • the terminal device can switch the activated BWP from the first BWP to the second BWP, and use the second BWP as the BWP activated by the terminal device.
  • the terminal device can communicate with the network device on the second BWP according to the instruction of the first information.
  • the terminal device in the process of switching the first BWP to the second BWP, may perform RF retuning and/or baseband parameter reconfiguration, switch the RF resources from the first BWP to the second BWP, and use the second BWP as the activated BWP. In this way, the terminal device can communicate on the second BWP.
  • the wireless communication method provided in the embodiment of the present application may further include the following steps:
  • Step 430 After completing the communication on the second BWP, the terminal device switches the activated BWP from the second BWP to the first BWP.
  • the terminal device can complete the switching of the activated BWP twice.
  • the terminal device in the first switching, can switch the activated BWP from the first BWP to the second BWP according to the first information, and use the second BWP as the BWP activated by the terminal device, so that the terminal device can communicate through the activated second BWP.
  • the terminal device can actively switch the activated BWP from the second BWP to the original first BWP, and use the original first BWP as the BWP activated by the terminal device, so that the terminal device and the network device can perform subsequent resource scheduling based on the originally activated first BWP.
  • the terminal device can make an autonomous decision and actively switch the activated second BWP back to the originally used first BWP. That is to say, in the embodiment of the present application, in the second switching, the terminal device can switch the activated BWP back to the original first BWP without the instruction of signaling. In this way, the terminal device and the network device can perform subsequent resource scheduling based on the original first BWP.
  • the terminal device switches the activated BWP from the second BWP to the first BWP after completing the communication on the second BWP.
  • the first information may be used only to indicate the second BWP, and resource scheduling for data transmission by the terminal device on the second BWP may be completed by another information.
  • the terminal device may receive DCI 1 (i.e., the first information) and DCI 2, DCI 1 may indicate the second BWP, and DCI 2 may indicate the first time-frequency resource transmission of the PDSCH on the second BWP. Based on this, the terminal device may determine the second BWP according to DCI 1, and determine the scheduled PDSCH to be transmitted on the first time-frequency resource of the second BWP according to DCI 2.
  • the first information in addition to being used to indicate the second BWP, can also be used to indicate the transmission of the first data on the first time-frequency resource of the second BWP. That is, the first information can indicate BWP switching and cross-BWP scheduling.
  • the first information may include BWP indication information and resource indication information, wherein the BWP indication information may indicate the second BWP, and the resource indication information may indicate the first time-frequency resource on the second BWP.
  • the resource scheduling information also indicates the frequency domain resources on the new BWP after the BWP switching. That is, BWP switching and cross-BWP scheduling occur simultaneously through the indication of the first information.
  • the first information may be a scheduling DCI.
  • the scheduling DCI may indicate the second BWP and the first time-frequency resource for transmitting the first data on the second BWP.
  • the scheduling DCI may also only indicate the second BWP without being used for scheduling data. The embodiment of the present application does not limit the indication content of the scheduling DCI.
  • the terminal device completing the communication on the second BWP may include: the terminal device completing the transmission of the first data on the first time-frequency resource of the second BWP. That is, after the terminal device completes the data scheduled by the first information on the second BWP, it actively switches the activated BWP from the second BWP to the first BWP. In this way, the terminal device can use the second BWP for data transmission to improve resource utilization. At the same time, after the terminal device completes the communication on the second BWP, it can switch the activated BWP to the original first BWP without having to perform subsequent resource scheduling with the second BWP. In this way, additional restrictions on the second BWP where the special signal is located are avoided, thereby ensuring normal data interaction between the network device and the terminal device.
  • the terminal device may immediately switch the activated BWP from the second BWP to the original first BWP.
  • the terminal device may be configured with a timer.
  • the terminal device may start the timer when switching the activated BWP from the first BWP to the second BWP, or start the timer after the terminal device completes the transmission on the second BWP, and when the timer expires, the terminal device switches the activated BWP from the second BWP to the first BWP, and re-activates the first BWP as the activated BWP of the terminal device.
  • the timer can be configured by the network device, can be pre-configured, can be agreed upon by the protocol, or can be set by the terminal device itself, and the embodiments of the present application do not impose any restrictions on this.
  • the terminal device may transmit the first data on the second BWP in step 420a and step 430. Therefore, the feedback information of the terminal device for the first data transmitted on the second BWP may be transmitted via the first BWP or the second BWP.
  • the feedback information may be Hybrid Automatic Repeat reQuest (HARQ) information, or other types of feedback information, which is not limited in the embodiments of the present application.
  • HARQ Hybrid Automatic Repeat reQuest
  • the terminal device after the terminal device completes the communication on the second BWP, it can actively switch the activated BWP from the second BWP to the original first BWP.
  • the terminal device can choose to provide feedback after the activated BWP is switched from the second BWP to the first BWP.
  • the terminal device can transmit feedback information of the first data on the original first BWP after switching back to the second BWP.
  • the terminal device may also choose to provide feedback on the received first information before the activated BWP switches from the second BWP to the first BWP, and the terminal device may transmit feedback information for the first data on the second BWP.
  • the terminal device can choose any of the above methods to send data feedback information, and the embodiments of the present application do not limit this.
  • first BWP and the second BWP may include only the downlink BWP, or the first BWP and the second BWP may include a pair of uplink BWP and downlink BWP.
  • first BWP and the second BWP may include only the downlink BWP.
  • first BWP and the second BWP may include a pair of uplink BWP and downlink BWP.
  • BWP indicated by the BWP indication information corresponds to the uplink BWP and the downlink BWP, and the two BWPs are activated at the same time.
  • the first BWP and the second BWP may include a paired uplink BWP and downlink BWP.
  • the terminal device may transmit feedback information for the above data on the uplink BWP corresponding to the first BWP, or the terminal device may transmit feedback information for the above data on the uplink BWP corresponding to the second BWP.
  • a terminal device may receive DCI 1 (i.e., first information) on a downlink BWP 1, wherein the BWP indication information in the DCI 1 indicates a downlink BWP 2, and the resource scheduling information is used to schedule PDSCH 1 in BWP 2.
  • DCI 1 i.e., first information
  • the terminal device After receiving DCI 1, the terminal device performs RF retuning and/or baseband parameter reconfiguration, and after a first processing delay, the currently activated BWP of the terminal device may be switched to the downlink BWP 2.
  • the terminal device receives PDSCH 1 on the downlink BWP 2.
  • the terminal device Since the downlink BWP 1 corresponds to the uplink BWP 1, after the transmission of PDSCH 1 is completed, the terminal device automatically switches the activated BWP to the uplink BWP 1, and after a second switching delay, the terminal device may transmit the HARQ information of the first data on the PUCCH of the uplink BWP 1.
  • a terminal device In actual applications, it takes a certain amount of time for a terminal device to perform RF retuning and/or baseband parameter reconfiguration. During this period, the terminal device cannot perform normal transceiver operations.
  • the RF retuning time may include the time for receiving the first information, the time for retuning the frequency point and the RF bandwidth, and the time required for adjusting components such as analog to digital converter (ADC), digital to analog converter (DAC), and automatic gain tracking control (AGC).
  • ADC analog to digital converter
  • DAC digital to analog converter
  • the RF retuning time can be 20 microseconds ( ⁇ s), and the corresponding number of time domain symbols is about 1 time domain symbol when the subcarrier spacing is 30kHz, and about 2 time domain symbols when the subcarrier spacing is 60kHz. If the BWP switching occurs in the frequency band and the center frequency changes, the time required for RF retuning is 50-200 ⁇ s, and the corresponding number of time domain symbols is about 2-6 time domain symbols when the subcarrier spacing is 30kHz, and about 3-12 time domain symbols when the subcarrier spacing is 60kHz.
  • the RF retuning time is 900 ⁇ s, and the corresponding number of time domain symbols is about 26 time domain symbols when the subcarrier spacing is 30kHz, and about 51 time domain symbols when the subcarrier spacing is 60kHz.
  • the terminal device in the process of the terminal device switching the activated BWP from the first BWP to the second BWP, there is a time interval between the terminal device communicating on the first BWP and communicating on the second BWP, and the terminal device cannot perform sending and receiving operations during the time interval.
  • the terminal device communicates through the second BWP in step 420, which can be implemented in the following manner:
  • the terminal device After the second time period, the terminal device communicates on the second BWP.
  • the second time period may include a time period in which the terminal device switches from the first BWP to the second BWP.
  • the second time period at least includes the time period when the terminal device switches from the first BWP to the second BWP.
  • the second time period may include the time interval between the terminal device communicating on the first BWP and communicating on the second BWP as described above.
  • the second time period of the terminal device may include a time period from when the terminal device does not communicate on the first BWP to when the terminal device communicates on the second BWP.
  • the terminal device may avoid the second time period in which the sending and receiving operations are not performed. That is, the terminal device may not transmit data in the second time period. After the second time period, communication is performed on the second BWP, thereby avoiding the problem of data loss caused by the inability of the terminal device to perform the sending and receiving operations in the second time period, thereby ensuring the correct transmission of data.
  • the terminal device not transmitting data may include the terminal device not receiving designated data.
  • the designated data may be PDSCH, PDCCH, etc., which is not limited in the embodiments of the present application.
  • the terminal device not transmitting data may also include the terminal device not demodulating or decoding the received information, or the terminal device not performing other operations other than demodulating and decoding the received information, or the terminal device treating the received data as an error case, which is not limited in the embodiments of the present application.
  • the network device can avoid data interaction with the terminal device in the second time period. Specifically, the network device can determine the time period for the terminal device to perform RF retuning and/or baseband parameter reconfiguration according to the time length in Table 2, and avoid scheduling data in the second time period for the terminal device.
  • the second time period may be indicated by the first information.
  • the first information may include a delay indication field, and the second time period is indicated by the delay indication field.
  • the terminal device can start communicating on the second BWP.
  • DCI 1 i.e., the first information
  • the BWP indication information in DCI 1 indicates BWP 2
  • the resource scheduling information in DCI 1 can indicate PDSCH 1.
  • the terminal device can perform RF retuning and/or baseband parameter reconfiguration according to the indication of DCI 1, and after the second time period, switch the activated BWP 1 to BWP 2. It can be seen that after the second time period, the terminal device can receive PDSCH 1 scheduled by DCI 1 on the time-frequency resources of BWP 2.
  • the terminal device needs to perform RF retuning and/or baseband parameter reconfiguration again, and switch the RF resources from the second BWP to the original first BWP, so that the terminal device can communicate on the first BWP again.
  • the terminal device cannot perform normal transceiver operations during the time interval. That is, during the process of the terminal device switching the activated BWP from the second BWP to the first BWP, there is a time interval between the terminal device communicating on the second BWP and communicating on the first BWP, and the terminal device cannot perform transceiver operations during the time interval.
  • the terminal device can communicate again on the first BWP after the second BWP transmission is completed after a first time period; wherein the first time period may include a time period in which the terminal device switches the activated BWP from the second BWP to the first BWP.
  • the first time period may at least include the time period consumed by the terminal device to switch the activated BWP from the second BWP to the first BWP.
  • the first time period at least includes the time period when the terminal device switches from the second BWP to the first BWP.
  • the first time period may be the time interval between when the terminal device communicates on the second BWP and when it communicates on the first BWP. It can also be understood that the first time period may be the time period from when the terminal device does not communicate on the second BWP to when the terminal device communicates on the first BWP.
  • the terminal device can avoid the first time period when switching from the second BWP to the first BWP, and does not transmit data during the first time period. After the first time period, the terminal device can communicate on the first BWP again to avoid the problem of data loss caused by the inability of the terminal device to perform sending and receiving operations during the first time period, thereby ensuring the correct transmission of data.
  • the terminal device not transmitting data may include the terminal device not receiving designated data.
  • the designated data may be PDSCH, PDCCH, etc., which is not limited in the embodiments of the present application.
  • the terminal device not transmitting data may also include the terminal device not demodulating or decoding the received information, or the terminal device not performing other operations other than demodulating and decoding the received information, or the terminal device treating the received data as an error case, which is not limited in the embodiments of the present application.
  • the terminal device may perform two BWP switches, and therefore, the terminal device may not receive data in both the first time period and the second time period.
  • the terminal device receives DCI 1 (i.e., the first information) on BWP 1, the BWP indication information in DCI 1 indicates BWP 2, and the resource scheduling information in DCI 1 may indicate PDSCH 1.
  • the terminal device may perform RF retuning and/or baseband parameter reconfiguration according to the indication of DCI 1, and after a second time period, switch the activated BWP 1 to BWP 2.
  • the terminal device may receive PDSCH 1 scheduled by DCI 1 on the time-frequency resources of BWP 2.
  • the terminal device may actively perform RF retuning and/or baseband parameter reconfiguration, and after a first time period, switch the activated BWP 2 to BWP 1.
  • the second BWP switching does not require instruction indication, and automatically switches to BWP 1 after the reception of PDSCH 1 is completed. In this way, the terminal device can continue to receive DCI 2 on BWP 1 and receive PDSCH 2 scheduled by DCI 2.
  • the network device may avoid scheduling resources for the terminal device on time domain resources within the first time period and the second time period. It is understandable that when the network device performs cross-BWP scheduling, the scheduled time domain resources may avoid the time period when the terminal device performs RF retuning and/or baseband parameter reconfiguration according to the requirements shown in Table 2.
  • a terminal device may regard the scheduling information as an error case and may not respond to the scheduling information. For example, the terminal device may not receive the PDSCH scheduled by the network device.
  • the terminal device can receive DCI 1 (i.e., the first information) on BWP 1, and DCI 1 includes BWP indication information, and the BWP indication information indicates BWP 2.
  • DCI 1 also includes resource scheduling information, which schedules PDSCH 1 and PDSCH 2 respectively.
  • the time-frequency resources of PDSCH 1 are located in the second time period, and PDSCH 2 is located in the time domain after switching to BWP 2.
  • the delay of switching from BWP 1 to BWP 2 for RF retuning and/or baseband parameter reconfiguration is the second time period.
  • PDSCH 1 is located in the time domain resources of the second time period, so the terminal device can regard the resource scheduling information for scheduling PDSCH 1 as an error case.
  • PDSCH 2 scheduled by DCI 1 arrives after the second time period, so the terminal device can receive PDSCH 2 normally.
  • the terminal device can receive DCI 1 and DCI 2 on BWP 1, wherein DCI 1 includes resource scheduling information, and the resource scheduling information can indicate PDSCH 1 and PDSCH 2.
  • DCI 2 can include BWP indication information, and the BWP indication information can indicate BWP 2.
  • the delay of switching from BWP 1 to BWP 2 for RF retuning and/or baseband parameter reconfiguration is the second time period.
  • PDSCH 1 is located in the second time period, and PDSCH 2 is located in the time domain after switching to BWP 2.
  • the terminal device can regard the resource scheduling information of scheduling PDSCH 1 in DCI 1 as an error case. For PDSCH 2, the terminal device can receive it normally.
  • the wireless communication method provided in the embodiment of the present application may further perform the following steps:
  • Step 440 After the terminal device completes communication on the second BWP, the activated BWP is the second BWP.
  • the terminal device needs to perform two RF retuning and/or baseband parameter reconfiguration.
  • the terminal device cannot transmit or receive during the two processing delays, resulting in a certain delay overhead.
  • the terminal device can only perform one activated BWP switch. After the activated BWP is switched from the first BWP to the second BWP, the terminal device can keep the activated BWP unchanged.
  • the terminal device receives the first information on the first BWP, and the first information indicates the second BWP.
  • the terminal device switches the activated BWP from the first BWP to the second BWP based on the first information. In this way, the terminal device communicates on the second BWP, and after completing the communication on the second BWP, the terminal device continues to use the second BWP as the activated BWP, avoiding unnecessary BWP switching.
  • the first information is further used to indicate that the first data is transmitted on the first time-frequency resource of the second BWP. Based on this, the terminal device completing communication on the second BWP may mean that the terminal device completes the transmission of the first data on the first time-frequency resource of the second BWP.
  • the activated BWP is still the second BWP.
  • the first information may be a scheduling DCI.
  • the scheduling DCI may indicate the second BWP and the first time-frequency resource for transmitting the first data on the second BWP.
  • the scheduling DCI may also only indicate the second BWP and not be used for scheduling data. The embodiment of the present application does not limit the indication content of the scheduling DCI.
  • the terminal device may transmit the first data on the second BWP. Therefore, the feedback information of the terminal device with respect to the first data transmitted on the second BWP may be transmitted via the second BWP.
  • the terminal device can switch the activated BWP from the first BWP to the second BWP according to the first information, and after the terminal device completes the transmission of the first data in the first time-frequency resource of the second BWP, the second BWP is still used as the activated BWP. Therefore, in this embodiment, the terminal device can use the activated second BWP to transmit feedback information for the first data.
  • the first BWP and the second BWP may include only the downlink BWP, or the first BWP and the second BWP may include a paired uplink BWP and a downlink BWP. That is, the BWP indicated by the BWP indication information corresponds to the uplink BWP and the downlink BWP, and the two BWPs are activated at the same time.
  • the first BWP and the second BWP may include only the downlink BWP.
  • the first BWP and the second BWP may include a paired uplink BWP and a downlink BWP.
  • the terminal device may transmit feedback information for the above data on the uplink BWP corresponding to the second BWP.
  • the terminal device may include a primary receiver and a secondary receiver.
  • the main receiver can be a common receiver in the terminal device.
  • the auxiliary receiver can be a low-cost, low-complexity and low-power receiver.
  • the main receiver can receive data with a larger frequency domain bandwidth, while the auxiliary receiver can receive data with a smaller frequency domain bandwidth due to cost and complexity constraints.
  • the auxiliary receiver may be configured to receive the special signal in the above embodiments, such as WUS, energy saving signal, paging signal, etc.
  • the special signal in the embodiment of the present application may be used to wake up the main receiver.
  • the wireless communication method provided in the embodiment of the present application may further include the following steps:
  • the terminal device turns off the main receiver according to the first information.
  • the first information in the embodiment of the present application may be received on a main receiver of a terminal device.
  • the first information may indicate a second BWP, which is different from the first BWP.
  • the second BWP is a special BWP.
  • the terminal device determines that the BWP indicated by the BWP indication information in the first information is a special second BWP, it can actively shut down the main receiver and only use the auxiliary receiving communication to save power.
  • the terminal device may store a list of identification information of special BWPs. If the terminal device determines that the identification information of the BWP indicated by the first information is included in the list of identification information of the special BWP, it actively turns off the main receiver and communicates through the auxiliary receiver.
  • the wireless communication method provided in the embodiment of the present application may further include the following steps:
  • the terminal device receives second information through the auxiliary receiver, and the second information indicates to wake up the main receiver.
  • the terminal device can receive information through the auxiliary receiver to reduce the power consumption of the terminal device.
  • the network device When the network device needs to wake up the main receiver of the terminal device, it can send the second information to the terminal device. In this way, the terminal device receives the second information through the currently working auxiliary receiver, and the terminal device can wake up the main receiver according to the instruction of the second information. In this way, the main receiver can resend and receive data/information.
  • the second information may be control information, such as DCI, or the second information may be a special signal in the above embodiment, which is not limited in the embodiment of the present application.
  • the second information may be received on the second BWP. It is understandable that the terminal device may transmit and receive data/information on the second BWP after turning off the main receiver.
  • the terminal device turning off the main receiver can be considered as the terminal device switching the activated first BWP to the second BWP.
  • the terminal device waking up the main receiver can be understood as switching the activated BWP from the second BWP to the first BWP.
  • the search space of the PDCCH may be configured on the second BWP, and the terminal device may receive control information (eg, DCI) on the second BWP and switch to other BWPs.
  • control information eg, DCI
  • the special signal may carry BWP indication information, and the special signal may realize the switching of BWP while waking up the main receiver of the terminal device.
  • the network device may send a special signal to instruct the terminal device to wake up the main receiver.
  • the special signal may include BWP indication information to switch the activated BWP to the first BWP with a large bandwidth for data transmission.
  • the terminal device can switch the activated BWP from the first BWP to the second BWP according to the first information, and communicate on the second BWP. After the terminal device completes the communication on the second BWP, it can actively switch the activated BWP from the second BWP back to the original first BWP, or the terminal device maintains the activated BWP as the second BWP unchanged.
  • the first information may also indicate whether the terminal device switches the activated BWP from the second BWP to the first BWP after completing the communication on the second BWP.
  • the terminal device can determine whether to perform step 430 or step 440 after step 420a based on the first information. That is, the terminal device can determine whether to switch the activated BWP from the second BWP to the first BWP or keep the activated BWP unchanged as the second BWP after completing the communication on the second BWP based on the first information.
  • the network device can instruct the terminal device through the first information to switch the activated BWP from the second BWP to the first BWP after completing the communication on the second BWP. That is, the terminal device can implement the above steps 420a and 430.
  • the first information may instruct the terminal device to continue to use the second BWP as the activated BWP after completing communication on the second BWP. That is, the terminal device may implement steps 420a and 440 above.
  • the first information may include a first switching indication field, and when the value of the first switching indication field is different, it indicates that the terminal device performs different operations.
  • the value of the first switching indication field is a first value (for example, 0 or 1), it can indicate that the terminal device does not perform an activated BWP switch after completing communication on the second BWP, that is, after the terminal device completes communication on the second BWP, the second BWP continues to be the activated BWP.
  • the value of the first switching indication field is a second value (for example, 1 or 0)
  • it can indicate that the terminal device performs an activated BWP switch after completing communication on the second BWP, that is, after the terminal device completes communication on the second BWP, the activated second BWP is switched to the first BWP.
  • the network device can instruct the terminal device whether to switch the activated BWP from the second BWP back to the original first BWP through the first information according to actual needs, thereby improving the flexibility of data transmission.
  • the terminal device communicates through the second BWP in step 420, which can also be implemented in the following manner:
  • Step 420b The terminal device maintains the activated BWP as the first BWP, and communicates on the second BWP.
  • the terminal device may not change the activation state of the currently activated BWP. That is, after receiving the first information, the terminal device may keep the first BWP as the activated BWP and not switch the activated BWP in the process of responding to the first information.
  • the terminal device may keep the activated BWP as the first BWP unchanged.
  • the terminal device may communicate with the terminal device on the second BWP according to the instruction of the first information.
  • the first information is further used to indicate that the first data is transmitted on the first time-frequency resource of the second BWP.
  • the terminal device communicating on the second BWP may refer to the terminal device transmitting the first data on the first time-frequency resource of the second BWP.
  • step 420b although the BWP activated by the terminal device has not changed, the underlying hardware of the terminal device still needs to switch the RF resources twice.
  • the terminal device can perform RF retuning and/or baseband parameter reconfiguration to prepare for the terminal device to communicate on the second BWP, and switch the RF resources from the first BWP to the second BWP. In this way, the terminal device can transmit the first data on the first time-frequency resource of the second BWP.
  • the terminal device can perform RF retuning and/or baseband parameter reconfiguration again to switch the RF resources from the second BWP to the first BWP.
  • the terminal device is also unable to perform normal transmitting and receiving operations.
  • the terminal device communicates on the second BWP, which may include: the terminal device communicates on the second BWP after the second time period.
  • the second time period may at least include a time period in which the terminal device switches the radio frequency resources from the first BWP to the second BWP, which may also be referred to as a preparation time period for the terminal device to perform data transmission on the second BWP.
  • the terminal device can avoid the second time period, and the terminal device can not transmit data in the first time period. After the second time period, communication is performed on the second BWP, so as to avoid the problem of data loss caused by the terminal device being unable to perform sending and receiving operations in the second time period, thereby ensuring the correct transmission of data.
  • step 420b after the terminal device completes the transmission of the first data on the second BWP, the terminal device needs to go through a first time period before it can communicate on the first BWP again.
  • the first time period is a time period that at least includes the terminal device switching the radio frequency resources from the second BWP to the first BWP, and can also be called a preparation time period for the terminal device to perform data transmission on the first BWP.
  • the terminal device can avoid the first time period, and the terminal device can not transmit data in the first time period. After the first time period, communication is resumed on the first BWP, so as to avoid the problem of data loss caused by the inability of the terminal device to perform the sending and receiving operations in the first time period, thereby ensuring the correct transmission of data.
  • the terminal device when the terminal device receives the first information in step 420b, keeps the activated BWP as the first BWP, and communicates on the second BWP, the terminal device can keep the main receiver turned on, and the terminal device can continue to send and receive data/information through the main receiver after transmitting the data scheduled by the first information on the auxiliary receiver.
  • the terminal device when the terminal device receives the first information in step 420b, keeps the activated BWP as the first BWP, and communicates on the second BWP, the terminal device can turn off the main receiver and turn on the auxiliary receiver when switching the radio frequency resources from the first BWP to the second BWP, and turn off the auxiliary receiver and turn on the main receiver when switching the radio frequency resources from the second BWP to the first BWP.
  • the embodiments of the present application are not limited to this.
  • the terminal device may transmit the first data on the second BWP.
  • the feedback information of the terminal device for the first data transmitted on the second BWP may be transmitted via the first BWP or the second BWP.
  • the terminal device may transmit feedback information for the data on the second BWP before performing the second radio frequency resource switching.
  • the terminal device may also transmit feedback information for the data on the activated first BWP after completing the second radio frequency resource switching, and the embodiment of the present application does not limit this.
  • the terminal device can choose any of the above methods to send data feedback information, and the embodiments of the present application do not limit this.
  • the first BWP and the second BWP may include only the downlink BWP, or the first BWP and the second BWP may include a paired uplink BWP and a downlink BWP. That is, the BWP indicated by the BWP indication information corresponds to the uplink BWP and the downlink BWP, and the two BWPs are activated at the same time.
  • the first BWP and the second BWP may include only the downlink BWP.
  • the first BWP and the second BWP may include a paired uplink BWP and a downlink BWP.
  • the first BWP and the second BWP may include a paired uplink BWP and downlink BWP.
  • the terminal device may transmit feedback information for the above data on the uplink BWP corresponding to the first BWP, or the terminal device may transmit feedback information for the above data on the uplink BWP corresponding to the second BWP.
  • the first information may further indicate whether to switch the activated BWP from the first BWP to the second BWP.
  • the terminal device may perform step 420a or step 420b according to the first information. That is, the first information may indicate whether the terminal device switches the activated BWP from the first BWP to the second BWP and communicates on the second BWP after receiving the first information, or keeps the activated BWP as the first BWP and communicates on the second BWP.
  • the first information may include a second switching indication field, and when the value of the second switching indication field is different, it instructs the terminal device to perform different operations.
  • the value of the second switching indication field is a first value (for example, 0 or 1)
  • it can instruct the terminal device to switch the activated BWP to a second BWP.
  • the value of the first switching indication field is a second value (for example, 1 or 0)
  • it can instruct the terminal device to keep the activated BWP unchanged as the first BWP.
  • the first information may simultaneously indicate whether to switch the activated BWP from the first BWP to the second BWP, and indicate whether to switch the activated BWP from the second BWP to the first BWP after the terminal device completes the communication on the second BWP. That is, the first information may include a first switching indication field and a second switching indication field.
  • the second switching indication field indicates a value of the first value
  • the first switching indication field indicates a value of the first value
  • the terminal device can determine to switch the activated BWP to the second BWP for communication, and after completing the communication on the second BWP, do not switch the activated BWP, and continue to use the second BWP as the activated BWP.
  • the second switching indication field indicates a value of the first value
  • the first switching indication field indicates a value of the second value
  • the terminal device can determine to switch the activated BWP to the second BWP for communication, and after completing the communication on the second BWP, actively switch the activated BWP back to the original BWP.
  • the second switching indication field indicates a value of the second value
  • the first switching indication field indicates a value of the first value or the second value
  • the terminal device can determine to keep the activated BWP unchanged as the first BWP, and only communicate on the second BWP.
  • the size of the sequence number of each process does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present application.
  • downlink indicates that the transmission direction of the signal or data
  • uplink is used to indicate that the transmission direction of the signal or data is the second direction sent from the user equipment of the cell to the site
  • side is used to indicate that the transmission direction of the signal or data is the third direction sent from the user equipment 1 to the user equipment 2.
  • downlink signal indicates that the transmission direction of the signal is the first direction.
  • the term "and/or” is only a description of the association relationship of the associated objects, indicating that there can be three relationships. Specifically, A and/or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character “/" in this article generally indicates that the front and back associated objects are in an "or" relationship.
  • FIG. 12 is a schematic diagram of a structure of a wireless communication device provided in an embodiment of the present application, which is applied to a terminal device. As shown in FIG. 12 , the wireless communication device includes:
  • the first transceiver unit 1201 is configured to receive first information on a first bandwidth part BWP, where the first information is used to indicate a second BWP; the first BWP is a BWP currently activated by the terminal device;
  • the first transceiver unit 1201 is further configured to communicate on the second BWP.
  • the first transceiver unit 1201 may include a switching unit configured to switch the activated BWP from the first BWP to the second BWP.
  • the switching unit is further configured to switch the activated BWP from the second BWP to the first BWP after completing the communication on the second BWP.
  • the first information is further used to indicate transmission of first data on a first time-frequency resource of the second BWP, and the first transceiver unit 1201 may also be configured to complete transmission of the first data on the first time-frequency resource.
  • the first transceiver unit 1201 is further configured to transmit feedback information of the first data on the first BWP;
  • the switching unit is further configured to switch the terminal device to the first BWP after a first time period.
  • the terminal device includes a main receiver and a secondary receiver; the wireless communication apparatus further includes a control unit configured to shut down the main receiver according to the first information.
  • the first transceiver unit 1201 is further configured to receive second information through the auxiliary receiver, where the second information indicates waking up the main receiver.
  • the second information is received on the second BWP.
  • the first transceiver unit 1201 is further configured to keep the activated BWP as the first BWP, and perform the communication on the second BWP.
  • the first information is further used to indicate transmission of first data on the first time-frequency resources of the second BWP; the first transceiver unit 1201 is further configured to transmit the first data on the first time-frequency resources of the second BWP.
  • the first transceiver unit 1201 is further configured to transmit feedback information of the first data to the terminal device on the first BWP;
  • the terminal device transmits feedback information of the first data on the second BWP.
  • the first information is further used to indicate whether to switch the activated BWP from the first BWP to the second BWP.
  • the first information is further used to indicate whether to switch the activated BWP from the second BWP to the first BWP after the communication is completed on the second BWP.
  • the second BWP is at least one of the following:
  • the BWP where the wake-up signal WUS is located the BWP where the energy-saving signal is located, and the BWP where the paging signal is located.
  • the first transceiver unit 1201 is further configured to communicate on the second BWP after a second time period; wherein the second time period is a time period in which the terminal device switches the activated BWP from the first BWP to the second BWP, or the second time period is a preparation time period for the terminal device to communicate on the second BWP.
  • FIG. 13 is a second schematic diagram of the structure of a wireless communication device provided in an embodiment of the present application, which is applied to a network device. As shown in FIG. 13 , the wireless communication device includes:
  • the second transceiver unit 1301 is configured to send first information to the terminal device on the first BWP, where the first information is used to indicate the second BWP; the first BWP is the BWP currently activated by the terminal device;
  • the second transceiver unit 1301 is further configured to communicate with the terminal device on the second BWP.
  • the wireless communication apparatus further comprises a determining unit configured to determine that the terminal device switches the activated BWP from the first BWP to the second BWP.
  • the determining unit is further configured to determine that the BWP activated by the terminal device is switched from the second BWP to the first BWP after completing the communication with the terminal device on the second BWP.
  • the first information is also used to indicate the transmission of first data on the first time-frequency resource of the second BWP, and the determination unit is further configured to complete the transmission of the first data with the terminal device on the first time-frequency resource.
  • the second transceiver unit 1301 is further configured to transmit feedback information of the first data on the first BWP;
  • the second transceiver unit 1301 is further configured to determine that the terminal device switches to the first BWP after a first time period.
  • the determining unit is further configured to determine that the BWP that remains activated by the terminal device is the first BWP;
  • the second transceiver unit 1301 is further configured to perform the communication with the terminal device on the second BWP.
  • the first information is also used to indicate transmission of first data on the first time-frequency resources of the second BWP
  • the second transceiver unit 1301 is further configured to transmit the first data on the first time-frequency resources of the second BWP.
  • the second transceiver unit 1301 is further configured to transmit feedback information of the first data on the first BWP;
  • feedback information of the first data is transmitted on the second BWP.
  • the terminal device includes a primary receiver and a secondary receiver; the first information is also used to indicate turning off the primary receiver.
  • the second transceiver unit 1301 is further configured to send second information, wherein the second indication wakes up the main receiver.
  • the second information is transmitted on the second BWP.
  • the first information is further used to indicate whether to switch the activated BWP from the first BWP to the second BWP.
  • the first information is further used to indicate whether to switch the activated BWP from the second BWP to the first BWP after communication is completed on the second BWP.
  • the second BWP is at least one of the following:
  • the BWP where the WUS is located the BWP where the energy-saving signal is located, and the BWP where the paging signal is located.
  • the second transceiver unit 1301 is further configured to communicate on the second BWP after a second time period.
  • FIG14 is a schematic structural diagram of a communication device 1400 provided in an embodiment of the present application.
  • the communication device may be a terminal device or a network device.
  • the communication device 1400 shown in FIG14 includes a processor 1410, which may call and run a computer program from a memory to implement the method in the embodiment of the present application.
  • the communication device 1400 may further include a memory 1420.
  • the processor 1410 may call and run a computer program from the memory 1420 to implement the method in the embodiment of the present application.
  • the memory 1420 may be a separate device independent of the processor 1410 , or may be integrated into the processor 1410 .
  • the communication device 1400 may further include a transceiver 1430 , and the processor 1410 may control the transceiver 1430 to communicate with other devices, specifically, may send information or data to other devices, or receive information or data sent by other devices.
  • the transceiver 1430 may include a transmitter and a receiver.
  • the transceiver 1430 may further include an antenna, and the number of antennas may be one or more.
  • the communication device 1400 may specifically be a network device of an embodiment of the present application, and the communication device 1400 may implement corresponding processes implemented by the network device in each method of the embodiment of the present application, which will not be described in detail here for the sake of brevity.
  • the communication device 1400 may specifically be a mobile terminal/terminal device of an embodiment of the present application, and the communication device 1400 may implement the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiment of the present application, which will not be described again for the sake of brevity.
  • Fig. 15 is a schematic structural diagram of a chip according to an embodiment of the present application.
  • the chip 1500 shown in Fig. 15 includes a processor 1510, and the processor 1510 can call and run a computer program from a memory to implement the method according to the embodiment of the present application.
  • the chip 1500 may further include a memory 1520.
  • the processor 1510 may call and run a computer program from the memory 1520 to implement the method in the embodiment of the present application.
  • the memory 1520 may be a separate device independent of the processor 1510 , or may be integrated into the processor 1510 .
  • the chip 1500 may further include an input interface 1530.
  • the processor 1510 may control the input interface 1530 to communicate with other devices or chips, and specifically, may obtain information or data sent by other devices or chips.
  • the chip 1500 may further include an output interface 1540.
  • the processor 1510 may control the output interface 1540 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.
  • the chip can be applied to the network device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the network device in each method of the embodiments of the present application. For the sake of brevity, they will not be repeated here.
  • the chip can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the mobile terminal/terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.
  • the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.
  • FIG16 is a schematic block diagram of a communication system 1600 provided in an embodiment of the present application. As shown in FIG16 , the communication system 1600 includes a terminal device 1610 and a network device 1620 .
  • the terminal device 1610 can be used to implement the corresponding functions implemented by the terminal device in the above method
  • the network device 1620 can be used to implement the corresponding functions implemented by the network device in the above method.
  • the terminal device 1610 can be used to implement the corresponding functions implemented by the terminal device in the above method
  • the network device 1620 can be used to implement the corresponding functions implemented by the network device in the above method.
  • the processor of the embodiment of the present application may be an integrated circuit chip with signal processing capabilities.
  • each step of the above method embodiment can be completed by the hardware integrated logic circuit in the processor or the instruction in the form of software.
  • the above processor can be a general processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • DSP Digital Signal Processor
  • ASIC Application Specific Integrated Circuit
  • FPGA Field Programmable Gate Array
  • the methods, steps and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed.
  • the general processor can be a microprocessor or the processor can also be any conventional processor, etc.
  • the steps of the method disclosed in the embodiment of the present application can be directly embodied as a hardware decoding processor to perform, or the hardware and software modules in the decoding processor can be combined to perform.
  • the software module can be located in a mature storage medium in the field such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc.
  • the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.
  • the memory in the embodiment of the present application can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories.
  • the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory.
  • the volatile memory can be a random access memory (RAM), which is used as an external cache.
  • RAM Direct Rambus RAM
  • SRAM Static RAM
  • DRAM Dynamic RAM
  • SDRAM Synchronous DRAM
  • DDR SDRAM Double Data Rate SDRAM
  • ESDRAM Enhanced SDRAM
  • SLDRAM Synchlink DRAM
  • DR RAM Direct Rambus RAM
  • the memory in the embodiment of the present application may also be static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM), etc. That is to say, the memory in the embodiment of the present application is intended to include but not limited to these and any other suitable types of memory.
  • An embodiment of the present application also provides a computer-readable storage medium for storing a computer program.
  • the computer-readable storage medium can be applied to the network device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.
  • the computer-readable storage medium can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.
  • An embodiment of the present application also provides a computer program product, including computer program instructions.
  • the computer program product can be applied to the network device in the embodiments of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.
  • the computer program product can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.
  • the embodiment of the present application also provides a computer program.
  • the computer program can be applied to the network device in the embodiments of the present application.
  • the computer program runs on a computer, the computer executes the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, they are not described here.
  • the computer program can be applied to the mobile terminal/terminal device in the embodiments of the present application.
  • the computer program When the computer program is run on a computer, the computer executes the corresponding processes implemented by the mobile terminal/terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.
  • the disclosed systems, devices and methods can be implemented in other ways.
  • the device embodiments described above are only schematic.
  • the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed.
  • Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art.
  • the computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in each embodiment of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk, and other media that can store program codes.

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Abstract

本申请实施例提供一种无线通信方法及装置、终端设备、网络设备，该方法包括：终端设备在第一带宽部分BWP上接收第一信息，所述第一信息用于指示第二BWP；所述第一BWP为终端设备当前激活的BWP；所述终端设备在所述第二BWP上进行通信。

Description

无线通信方法及装置、终端设备、网络设备 技术领域
本申请实施例涉及移动通信技术领域，具体涉及一种无线通信方法及装置、终端设备、网络设备。
背景技术
随着通信技术的发展，通信传输资源日益紧张。如何提高资源利用率，是目前亟待解决的技术问题。
发明内容
本申请实施例提供一种无线通信方法及装置、终端设备、网络设备。
本申请实施例还提供一种无线通信方法，所述方法包括：
终端设备在第一带宽部分(Bandwidth Part，BWP)上接收第一信息，所述第一信息用于指示第二BWP；所述第一BWP为终端设备当前激活的BWP；
所述终端设备在所述第二BWP上进行通信。
本申请实施例还提供一种无线通信方法，所述方法包括：
网络设备在第一BWP上向终端设备发送第一信息，所述第一信息用于指示第二BWP；所述第一BWP为终端设备当前激活的BWP；
所述网络设备在所述第二BWP上与所述终端设备进行通信。
本申请实施例还提供一种无线通信装置，应用于终端设备，包括：
第一收发单元，被配置为在第一BWP上接收第一信息，所述第一信息用于指示第二BWP；所述第一BWP为终端设备当前激活的BWP；
所述第一收发单元，还被配置为在所述第二BWP上进行通信。
本申请实施例还提供一种无线通信装置，应用于网络设备，所述装置包括：
第二收发单元，被配置为在第一BWP上向终端设备发送第一信息，所述第一信息用于指示第二BWP；所述第一BWP为终端设备当前激活的BWP；
所述第二收发单元，还被配置为在所述第二BWP上与所述终端设备进行通信。
本申请实施例提供的通信设备，可以是上述方案中的终端设备或者是上述方案中的网络设备，该通信设备包括处理器和存储器。该存储器用于存储计算机程序，该处理器用于调用并运行该存储器中存储的计算机程序，执行上述的无线通信方法。
本申请实施例提供的芯片，用于实现上述的无线通信方法。
具体地，该芯片包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有该芯片的设备执行上述的无线通信方法。
本申请实施例提供的计算机可读存储介质，用于存储计算机程序，该计算机程序使得计算机执行上述的无线通信方法。
本申请实施例提供的计算机程序产品，包括计算机程序指令，该计算机程序指令使得计算机执行上述的无线通信方法。
本申请实施例提供的计算机程序，当其在计算机上运行时，使得计算机执行上述的无线通信方法。
本申请实施例提供的无线通信方法，终端设备可以在网络设备的指示下，利用第二BWP进行数据传输，提高资源利用率。
附图说
此处所说明的附图用来提供对本申请的进一步理解，构成本申请的一部分，本申请的示意性实 施例及其说明用于解释本申请，并不构成对本申请的不当限定。在附图中：
图1是本申请实施例提供的一种通信架构示意图；
图2是本申请实施例提供的一种终端设备接收机系统结构示意图；
图3A是本申请实施例提供的一种跨BWP调度的时序图一；
图3B是本申请实施例提供的一种跨BWP调度的时序图二；
图4是本申请实施例提供的一种无线通信方法的流程示意图一；
图5是本申请实施例提供的一种特殊信号传输时序图；
图6是本申请实施例提供的一种无线通信方法的流程示意图二；
图7A是本申请实施例提供的一种无线通信方法的流程示意图三；
图7B是本申请实施例提供的一种无线通信法的流程示意图四；
图8是本申请实施例提供的一种信号传输时序图一；
图9是本申请实施例提供的一种信号传输时序图二；
图10A是本申请实施例提供的一种信号传输时序图三；
图10B是本申请实施例提供的一种信号传输时序图四；
图11是本申请实施例提供的一种无线通信方法的流程示意图五；
图12是本申请实施例提供的一种无线通信装置的结构组成示意图一；
图13是本申请实施例提供的一种无线通信装置的结构组成示意图二；
图14是本申请实施例提供的一种通信设备示意性结构图；
图15是本申请实施例的芯片的示意性结构图；
图16是本申请实施例提供的一种通信系统的示意性框图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
图1是本申请实施例的一个应用场景的示意图。
如图1所示，通信系统100可以包括终端设备110和网络设备120。网络设备120可以通过空口与终端设备110通信。终端设备110和网络设备120之间支持多业务传输。
应理解，本申请实施例仅以通信系统100进行示例性说明，但本申请实施例不限定于此。也就是说，本申请实施例的技术方案可以应用于各种通信系统，例如：长期演进(Long Term Evolution，LTE)系统、LTE时分双工(Time Division Duplex，TDD)、通用移动通信系统(Universal Mobile Telecommunication System，UMTS)、物联网(Internet of Things，IoT)系统、窄带物联网(Narrow Band Internet of Things，NB-IoT)系统、增强的机器类型通信(enhanced Machine-Type Communications，eMTC)系统、5G通信系统(也称为新无线(New Radio，NR)通信系统)，或未来的通信系统等。
在图1所示的通信系统100中，网络设备120可以是与终端设备110通信的接入网设备。接入网设备可以为特定的地理区域提供通信覆盖，并且可以与位于该覆盖区域内的终端设备110(例如UE)进行通信。
网络设备120可以是长期演进(Long Term Evolution，LTE)系统中的演进型基站(Evolutional Node B，eNB或eNodeB)，或者是下一代无线接入网(Next Generation Radio Access Network，NG RAN)设备，或者是NR系统中的基站(gNB)，或者是云无线接入网络(Cloud Radio Access Network，CRAN)中的无线控制器，或者该网络设备120可以为中继站、接入点、车载设备、可穿戴设备、集线器、交换机、网桥、路由器，或者未来演进的公共陆地移动网络(Public Land Mobile Network，PLMN)中的网络设备等。
终端设备110可以是任意终端设备，其包括但不限于与网络设备120或其它终端设备采用有线或者无线连接的终端设备。
例如，所述终端设备110可以指接入终端、用户设备(User Equipment，UE)、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。接入终端可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，SIP)电话、IoT设备、卫星手持终端、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、5G网络中的终端设备或者未来演进网络中的终端设备等。
终端设备110可以用于设备到设备(Device to Device，D2D)的通信。
无线通信系统100还可以包括与网络设备120进行通信的核心网设备130，该核心网设备130可以是5G核心网(5G Core，5GC)设备，例如，接入与移动性管理功能(Access and Mobility Management Function，AMF)，又例如，认证服务器功能(Authentication Server Function，AUSF)，又例如，用户面功能(User Plane Function，UPF)，又例如，会话管理功能(Session Management Function，SMF)。可选地，核心网络设备130也可以是LTE网络的分组核心演进(Evolved Packet Core，EPC)设备，例如，会话管理功能+核心网络的数据网关(Session Management Function+Core Packet Gateway，SMF+PGW-C)设备。应理解，SMF+PGW-C可以同时实现SMF和PGW-C所能实现的功能。在网络演进过程中，上述核心网设备也有可能叫其它名字，或者通过对核心网的功能进行划分形成新的网络实体，对此本申请实施例不做限制。
通信系统100中的各个功能单元之间还可以通过下一代网络(next generation，NG)接口建立连接实现通信。
例如，终端设备通过NR接口与接入网设备建立空口连接，用于传输用户面数据和控制面信令；终端设备可以通过NG接口1(简称N1)与AMF建立控制面信令连接；接入网设备例如下一代无线接入基站(gNB)，可以通过NG接口3(简称N3)与UPF建立用户面数据连接；接入网设备可以通过NG接口2(简称N2)与AMF建立控制面信令连接；UPF可以通过NG接口4(简称N4)与SMF建立控制面信令连接；UPF可以通过NG接口6(简称N6)与数据网络交互用户面数据；AMF可以通过NG接口11(简称N11)与SMF建立控制面信令连接；SMF可以通过NG接口7(简称N7)与PCF建立控制面信令连接。
图1示例性地示出了一个网络设备、一个核心网设备和两个终端设备，可选地，该无线通信系统100可以包括多个网络设备并且每个网络设备的覆盖范围内可以包括其它数量的终端设备，本申请实施例对此不做限定。
需要说明的是，图1只是以示例的形式示意本申请所适用的系统，当然，本申请实施例所示的方法还可以适用于其它系统。此外，本文中术语“系统”和“网络”在本文中常被可互换使用。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。还应理解，在本申请的实施例中提到的“指示”可以是直接指示，也可以是间接指示，还可以是表示具有关联关系。举例说明，A指示B，可以表示A直接指示B，例如B可以通过A获取；也可以表示A间接指示B，例如A指示C，B可以通过C获取；还可以表示A和B之间具有关联关系。还应理解，在本申请的实施例中提到的“对应”可表示两者之间具有直接对应或间接对应的关系，也可以表示两者之间具有关联关系，也可以是指示与被指示、配置与被配置等关系。还应理解，在本申请的实施例中提到的“预定义”或“预定义规则”可以通过在设备(例如，包括终端设备和网络设备)中预先保存相应的代码、表格或其他可用于指示相关信息的方式来实现，本申请对于其具体的实现方式不做限定。比如预定义可以是指协议中定义的。还应理解，本申请实施例中，所述“协议”可以指通信领域的标准协议，例如可以包括LTE协议、NR协议以及应用于未来的通信系统中的相关协议，本申请对此不做限定。
为便于理解本申请实施例的技术方案，以下对本申请实施例的相关技术进行说明，以下相关技术作为可选方案与本申请实施例的技术方案可以进行任意结合，其均属于本申请实施例的保护范围。
为了进一步降低终端设备的功耗，标准讨论版本18(R18)考虑为终端设备引入唤醒接收机(Wake Up Receiver，WUR)，通过WUR来接收唤醒信号(Wake Up Signal，WUS)。WUR具有极低成本、极低复杂度和极低功耗的特点，其主要通过基于包络检测的方式接收唤醒信号。因此，唤醒接收机接收的WUS与R16、R17定义的基于物理下行控制信道(Physical Downlink Control Channel，PDCCH)承载的信号的调制方式、波形等不同。WRS主要通过对载波信号进行幅移键控(Amplitude Shift Keying，ASK)调制的包络信号。包络信号的解调可以基于无线射频信号提供的能量驱动低功耗电路来完成，因此WUR可以是无源接收机。除此之外，WUR也可以通过终端设备进行供电，无论哪种供电方式，该WUR相比终端设备传统的接收机极大的降低了功耗。WUR可以和终端设备中主接收机结合在一起，作为主接收机的一个附加模块，也可以单独作为终端设备的唤醒功能模块。
示例性的，参考图2所示的一种终端设备接收机系统结构示意图，终端设备中主接收机和WUR共用一套射频天线。WUR可以接收WUS，如果需要终端设备打开主接收机，那么WUR可以向主接收机发送唤醒信息，指示主接收机开启。否则，终端设备的主接收机可以处于关闭状态。
实际应用中，终端设备在一个时刻最多只能有一个激活的下行BWP和一个激活的上行BWP。网络设备可以给连接态的终端设备配置至多4个上行BWP以及至多4个下行BWP。其中，激活的上行BWP为配置的至多4个上行BWP中的一个，激活的下行BWP可以为配置的至多4个下行BWP中的一个。
对于频分双工(Frequency Division Duplexing，FDD)系统，上行BWP和下行BWP之间没有显式的对应(association)关系。例如，网络设备可以为一个连接态的终端设备配置4个上行BWP(BWP索引值分别为0,1,2,3)和4个下行BWP(BWP索引值分别为0,1,2,3)，当前激活的上行BWP的索引值可以是0，即上行BWP 0，当前激活的下行BWP索引值可以是1，即下行BWP 1。如果网络设备指示将下行BWP 0切换到下行BWP 2，终端设备激活的上行BWP可以保持不变。
而对于时分双工(Time Division Duplexing，TDD)系统，上行BWP和下行BWP需要成对切换。网络设备指示的BWP索引相同的上行BWP和下行BWP同时处于激活状态。
终端设备支持多种BWP的切换方式，包括但不限于基于下行控制信息(Downlink Control Information，DCI)控制的BWP切换，基于无线资源控制(Radio Resource Control，RRC)信令的BWP切换，基于定时器的BWP切换，以及基于随机接入信道(Random Access Channel，RACH)触发的BWP切换。
其中，对于DCI触发的BWP切换中，在对终端设备进行数据调度的DCI中可以包括BWP指示域(Bandwidth part indicator)，该指示域的比特数根据网络设备向终端设备配置的BWP的数量确定，例如该指示域的比特数可以为0、1或者2。具体来说，BWP指示域的比特长度为log 2(n BWP)，n BWP为网络设备为终端设备配置的BWP的数量。
其中，在高层RRC信令配置的BWP数量(n BWP,RRC)小于或等于3的情况下(即n BWP,RRC≤3)，n BWP＝n BWP,RRC+1。在该场景中，BWP指示域与高层参数配置的BWP-ID相同。在其他情况下，n BWP＝n BWP,RRC。示例性的，表1示出了网络设备通过高层信令配置了4个BWP情况下，BWP指示域取值与BWP对应关系。
表1
Figure PCTCN2022131781-appb-000001
可以看出，在BWP指示域取值为00时，可以指示高层信令配置的第一BWP。在BWP指示域取值为01时，可以指示高层信令配置的第二BWP。在BWP指示域取值为10时，可以指示高层信令配置的第三BWP。在BWP取值为11时，可以指示高层信令配置的第四BWP。
在需要对终端设备的BWP进行切换时，网络设备可以在向终端设备发送的DCI中的BWP指示域中指示与终端设备当前所在的BWP不同的BWP对应的指示值，终端设备接收到该BWP后执行BWP的切换。
除此之外，终端设备也可以基于定时器进行BWP的切换。终端设备可以配置一个BWP定时器，这样，终端设备在当前BWP每接收到一次DCI调度，可以重置该BWP定时器，此后持续计时，当该BWP定时器超时时，终端设备可以切换至默认BWP。
应理解，BWP既可以应用于PDCCH接收，也可以应用于物理下行共享信道(Physical Downlink Shared Channel，PDSCH)接收，且每个BWP都包含控制资源集合(CORESET)。这样在不发生BWP切换的情况下，一个BWP中的PDCCH就可以用来调度同一BWP内的PDSCH，PDCCH和被调度的PDSCH的子载波间隔也是一致的。
实际应用中，NR系统支持跨BWP调度。具体来说，终端设备接收到一个DCI，该DCI包含一个触发BWP切换的BWP指示信息，若该BWP指示信息所指示的BWP与当前激活的BWP不同，则在该DCI调度的PDSCH之前会发生BWP切换，这样该PDCCH和被其调度的PDSCH就将处于不同的BWP中，这种操作可被称为跨BWP调度(cross-BWP scheduling)。
如图3A所示，如果允许跨BWP调度，在BWP 1内触发BWP切换的DCI可以直接调度完成BWP切换之后在BWP 2内的PDSCH，这样终端设备激活的BWP切换到BWP 2后马上就可以在被 调度的PDSCH里接收数据。当然，采用调度DCI中指示BWP切换是实现“跨BWP调度”的最高效的方式。
而如果不允许跨BWP调度，也可以采用专用的BWP切换的DCI格式，但实现快速调度有一定困难。如图3B所示，BWP 1内的最后一个DCI只触发BWP切换，但不用于调度PDSCH，要等待BWP切换完成后，终端设备在切换后的BWP 2内检测到一个调度PDSCH的DCI，获得PDSCH的调度信息，并在更晚的时间在被调度的PDSCH里接收数据。
应理解，对于BWP切换和跨BWP调度机制，DCI中的BWP指示信息指示BWP切换的同时，DCI中的资源指示信息用于指示BWP切换后的新的BWP上的时频资源。也就是说，BWP切换和跨BWP调度是通过DCI的指示同时发生的。
需要说明的是，本申请实施例中，将指示BWP切换和跨BWP调度的DCI称为调度DCI。
实际应用中，为了提高资源利用率，承载特殊信号(例如WUS、寻呼信号、同步信号块等)的时频资源与现有NR信道和信号的时频资源复用的，避免为特殊信号配置专用的时频资源带来的大的资源开销。同时，承载特殊信号的时频资源如果不在现有系统带宽的边缘，会对系统带宽内的频域资源中间形成一些资源“空洞”，造成网络设备无法调度连续的频域资源用于数据传输，从而导致资源利用率的下降。由于数据调度的频域资源的范围为激活的BWP内的频域资源，因此，可以为特殊单独配置对应的BWP，而不必在数据调度的BWP上配置用于特殊信号的频域资源而产生的资源“空洞”。
应理解，在为特殊信号配置单独的BWP场景下，由于特殊信号并不是持续不断地发送，例如特殊信号的发送具有一定的周期。为了提高资源利用率，网络设备可以在特殊信号不发送时，利用为特殊信号配置的BWP进行资源调度。具体如何对这些BWP进行调度，目前并没有明确的方法。
为便于理解本申请实施例的技术方案，以下通过具体实施例详述本申请的技术方案。以上相关技术作为可选方案与本申请实施例的技术方案可以进行任意结合，其均属于本申请实施例的保护范围。本申请实施例包括以下内容中的至少部分内容。
参考图4所示，本申请实施例提供的无线通信方法可以包括步骤410和步骤420。
步骤410、终端设备在第一BWP上接收第一信息，第一信息用于指示第二BWP，其中，第一BWP为终端设备当前激活的BWP。
步骤420、终端设备在第二BWP上进行通信。
其中，第一信息可以是网络设备发送的，也可以是网络设备通过其他设备转发的，本申请实施例对此不做限制。
在一些实施例中，第一BWP可以是终端设备当前激活的BWP。第一BWP可以是网络设备配置的，或者预配置的，或者协议约定的，本申请实施例对此不做限制。
可以理解的是，网络设备可以通过终端设备当前激活的BWP向终端设备发送第一信息。相应的，终端设备可以在当前激活的BWP的至少部分时频资源上接收网络设备发送的第一信息。
其中，第一信息可以指示与第一BWP不同的第二BWP。可以理解的是，终端设备接收到第一信息后，可以通过第一信息指示的第二BWP与网络设备进行通信。
在一些实施例中，第二BWP可以是特殊信号所在的BWP，即网络设备为传输特殊信号配置的BWP。特殊信号可以是用于唤醒终端设备的主接收机，以进行数据和/或控制信息的传输，从而降低终端设备功耗的信号。示例性的，特殊信号可以是WUS、节能信号、寻呼信号等，本申请实施例对此不做限制。
也就是说，第二BWP可以是以下中的至少一项：WUS所在的BWP、节能信号所在的BWP、寻呼信号所在的BWP。
需要说明的是，WUS与节能信号可以是相同的信号，也可以是不同的信号，本申请实施例对此不做限制。
还需要说明的是，第一信息可以是物理层控制信令，例如DCI；第一信息也可以是高层控制信令，例如无线资源控制(Radio Resource Control，RRC)信令，第一信息还可以是专用信令，本申请实施例对此不做限制。
在一些实施例中，第一信息中可以包括BWP指示信息，该BWP指示信息可以携带第二BWP的标识信息、索引值等能够唯一标识该第二BWP的信息。
可以理解的是，特殊信号对应的第二BWP上的时频资源可以用于特殊信号的传输，由于特殊信号并不总是传输，因此可以在特殊信号不传输的时频资源上进行其他数据的传输，以提高资源利用率。
本申请实施例中，网络设备作为资源调度方，可以指示终端设备在特殊信号所在的第二BWP上进行通信。其中，第二BWP可以用于传输数据，或者，第二BWP可以用于传输数据和控制信息。可以理解的是，在第二BWP上进行通信，可以包括在第二BWP进行数据传输，或者，在第二BWP上进行数据和控制信息的传输，本申请实施例对此不做限制。示例性的，第二BWP上传输的数据可以是PDSCH，控制信息可以是PDCCH。
由此可见，终端设备可以根据网络设备的指示，复用网络设备为特殊信号配置的第二BWP进行通信，有效提高了频谱资源利用率。
应理解，特殊信号对应的第二BWP的频域带宽一般较小，主要用于特殊信号的发送。但是，特殊信号并不总是发送。示例性的，在特殊信号周期性发送时，参考图5所示，特殊信号在一个传输周期内的持续传输时间(on duration)内才可能发送，在非持续传输时间(off duration)内不发送。
因此，在off duration期间，特殊信号对应的第二BWP上的时频资源可以用于其他类型的通信。基于此，网络设备可以通过第一信息指示终端设备在为特殊信号单独配置的第二BWP上进行通信。
然而，如果网络设备要进行跨BWP调度，同时也触发终端设备进行BWP的切换，也就是说，被调度的终端设备激活的BWP切换到特殊信号所在的第二BWP上。这可能并不是网络希望的结果，这是因为特殊信号所在的第二BWP主要用于特殊信号的传输，不一定配置了PDCCH的搜索空间，终端设备将该第二BWP作为激活的BWP，可能会导致终端设备无法再接收控制信息来切换到其他BWP。并且，特殊信号对应的第二BWP的带宽一般较小，如果网络设备需要与终端设备进行数据交互，也不希望终端设备切换到特殊信号所在的第二BWP上，将该第二BWP作为激活BWP。
基于此，本申请实施例中，终端设备可以在第二BWP上完成通信后，仍然以第一BWP为激活的BWP，重新在第一BWP上进行通信。也就是说，在第二BWP上完成通信后，终端设备可以主动在原激活的第一BWP上进行通信。
在一种可能的实现方式中，终端设备在对第一信息进行响应的过程中，可以不对激活的BWP的状态进行切换。也就是说，终端设备激活的BWP可以保持为第一BWP不变，终端设备仅在第二BWP上进行一次数据传输。这样，终端设备可以在完成数据的传输之后，继续以第一BWP进行后续的通信。
在另一种可能的实现方式中，终端设备在对第一信息进行响应的过程中，可以适应地切换当前激活的BWP。具体来说，终端设备可以完成两次激活的BWP的切换，第一次切换中，可以将激活的BWP从第一BWP切换为第二BWP，第二次切换中，终端设备可以主动将激活的BWP从第二BWP切换为原来的第一BWP，这样，终端设备可以重新在原激活的第一BWP进行后续的通信。
需要说明的是，终端设备在第二BWP上完成通信后，重新在原来的第一BWP上进行通信可以是终端设备主动操作的，而不是网络设备指示或者调度的。
由此可见，终端设备可以在网络设备的指示下，复用特殊信号所在的第二BWP进行通信，并在通信完成后重新在原激活的第一BWP进行通信，可以在充分利用特殊信号所在的BWP，提高资源利用率的同时，避免终端设备在第二BWP上通信受到限制。
在本申请一实施例中，参考图6所示，步骤420中终端设备通过第二BWP进行通信，可以通过以下方式实现：
步骤420a、终端设备将激活的BWP从第一BWP切换至第二BWP。
其中，终端设备可以在第二BWP上进行通信。
可以理解的是，终端设备接收到第一信息后，可以将激活的BWP从第一BWP切换到第二BWP上，以第二BWP为终端设备激活的BWP。终端设备可以根据第一信息的指示，在第二BWP上与网络设备进行通信。
本申请实施例中，终端设备在将第一BWP切换到第二BWP的过程中，可以进行射频重调(RF retuning)和/或基带参数重配置，将射频资源从第一BWP切换至第二BWP，以第二BWP为激活的BWP。这样，终端设备可以在第二BWP上进行通信。
可选地，参考图7A所示，步骤420a之后，本申请实施例提供的无线通信方法还可以包括以下步骤：
步骤430、终端设备在第二BWP上完成通信后，将激活的BWP从第二BWP切换至第一BWP。
可以理解的是，终端设备在接收到第一信息之后，可以完成两次激活的BWP的切换。其中，在第一次切换中，终端设备可以根据第一信息，将激活的BWP从第一BWP切换至第二BWP，以第二BWP为终端设备激活的BWP，这样，终端设备可以通过激活的第二BWP进行通信。在第二次切换中，终端设备可以主动将激活的BWP从第二BWP切换至原来的第一BWP，以原来的第一BWP 为终端设备激活的BWP，如此，终端设备和网络设备可以基于原来激活的第一BWP进行后续的资源调度。
值得注意的是，在上述第二次切换中终端设备可以进行自主决策，主动将激活的第二BWP切换回原来使用的第一BWP。也就是说，本申请实施例中，第二次切换中，终端设备可以不需要信令的指示即可将激活的BWP切换回原来的第一BWP。这样，终端设备和网络设备可以基于原来的第一BWP进行后续资源调度。
其中，终端设备在第二次切换中，将激活的BWP从第二BWP切换至第一BWP是在第二BWP上完成通信后实现的。
在一些实施例中，第一信息可以仅用于指示第二BWP，终端设备在第二BWP上进行数据传输的资源调度可以通过另一信息来完成。示例性的，终端设备可以接收DCI 1(即第一信息)和DCI 2，DCI 1可以指示第二BWP，DCI 2可以指示PDSCH在第二BWP上的第一时频资源传输。基于此，终端设备可以根据DCI 1确定第二BWP，并根据DCI 2确定调度的PDSCH在第二BWP的第一时频资源上传输。
在一些实施例中，第一信息除了可以用于指示第二BWP外，还可以用于指示在第二BWP的第一时频资源上传输第一数据。也就是说，第一信息可以指示BWP切换和跨BWP调度。示例性的，第一信息中可以包括BWP指示信息和资源指示信息，其中，BWP指示信息可以指示第二BWP，资源指示信息可以指示第二BWP上的第一时频资源。其中，第一信息中BWP指示信息指示BWP切换的同时，资源调度信息也同时指示BWP切换后新的BWP上的频域资源。也就是说，BWP切换和跨BWP调度是通过第一信息的指示同时发生。
在一些实施例中，第一信息可以是调度DCI。该调度DCI可以指示第二BWP以及第二BWP上传输第一数据的第一时频资源。该调度DCI也可以仅指示第二BWP，而未用于调度数据。本申请实施例对调度DCI的指示内容不做限制。
可选地，在第一信息指示在第二BWP的第一时频资源上传输第一数据的情况下，终端设备在第二BWP上完成通信可以包括：终端设备在第二BWP的第一时频资源上完成第一数据的传输。也就是说，终端设备在第二BWP上完成第一信息调度的数据之后，主动将激活的BWP从第二BWP切换至第一BWP。如此，终端设备可以利用第二BWP进行数据传输，提高资源利用率。同时，终端设备在第二BWP上通信完成后，可以将激活的BWP切换为原来的第一BWP，而不必以第二BWP进行后续的资源调度。如此，避免在特殊信号所在的第二BWP上受到额外的限制，从而保证网络设备和终端设备正常的数据交互。
在一些实施例中，终端设备在第二BWP上完成通信后，可以立刻将激活的BWP从第二BWP切换至原来的第一BWP上。
在另一些实施例中，终端设备可以被配置一个定时器。终端设备可以在将激活的BWP从第一BWP切换至第二BWP时启动该定时器，或者终端设备在第二BWP上完成传输后启动该定时器，并在定时器期满时终端设备将激活的BWP从第二BWP切换至第一BWP上，重新以第一BWP为终端设备激活的BWP。
需要说明的是，该定时器可以是网络设备配置的，可以预配置的，也可以是协议约定，还可以是终端设备自己设定的，本申请实施例对此不做限制。
在一些实施例中，步骤420a和步骤430中，终端设备可以在第二BWP上传输第一数据。因此，终端设备针对第二BWP上传输的第一数据的反馈信息，可以通过第一BWP传输，或者，第二BWP传输。
其中，反馈信息可以是混合自动重传请求(Hybrid Automatic Repeat reQuest，HARQ)信息，或者其他类型的反馈信息，本申请实施例对此不做限制。
在一种可能的实现方式中，终端设备在第二BWP上完成通信后，可以主动将激活的BWP从第二BWP切换至原来的第一BWP。终端设备可以选择在激活的BWP从第二BWP切换至第一BWP之后进行反馈，具体来讲，终端设备可以在切换回原来的第一BWP上传输第一数据的反馈信息。
在另一种可能的实现方式中，终端设备还可以选择在激活的BWP从第二BWP切换至第一BWP之前，对接收到的第一信息进行反馈，则终端设备可以在第二BWP上传输针对该第一数据的反馈信息。
需要说明的是，终端设备可以选择以上中的任意一种方式发送数据的反馈信息，本申请实施例对此不做限制。
应理解，第一BWP和第二BWP可以仅包括下行BWP，第一BWP和第二BWP也可以包括成 对的上行BWP和下行BWP。示例性的，对于FDD系统，第一BWP和第二BWP可以仅包括下行BWP。对于TDD系统，第一BWP和第二BWP可以包括成对的上行BWP和下行BWP。需要说明的是，BWP指示信息指示的BWP对应上行BWP和下行BWP，两个BWP同时处于激活状态。
本申请实施例中，第一BWP和第二BWP可以包括成对的上行BWP和下行BWP。这样，终端设备可以在第一BWP对应的上行BWP上传输针对上述数据的反馈信息，或者，终端设备可以在第二BWP对应的上行BWP上传输针对上述数据的反馈信息。
示例性的，参考图8所示，TDD系统中，终端设备可以在下行BWP 1上接收DCI 1(即第一信息)，该DCI 1中的BWP指示信息指示下行BWP 2，资源调度信息用于调度BWP 2中的PDSCH 1。终端设备接收到DCI 1之后，进行射频重调和/或基带参数重配置，经过第一处理时延后，终端设备当前激活的BWP可以切换到下行BWP 2。终端设备在下行BWP 2上接收PDSCH 1。由于下行BWP1与上行BWP 1对应，在PDSCH 1传输完成后，终端设备自动将激活的BWP切换到上行BWP 1，经过第二切换时延后，终端设备可以在上行BWP 1的PUCCH上传输第一数据的HARQ信息。
实际应用中，终端设备进行射频重调和/或基带参数重配置的处理需要一定的时间，在此期间，终端设备无法进行正常的收发操作。
应理解，射频重调时间可以包括接收第一信息的时间、用来重调频点和射频带宽的时间以及模数转换(Analog to Digital Converter，ADC)、数模转换(Digital to Analog Converter，DAC)、自动增益跟踪控制(Automatic Gain Control，AGC)等器件调整需要的时间。表2示出了射频重调时间在不同条件下的取值。
表2
Figure PCTCN2022131781-appb-000002
从表2可以看出，若BWP切换发生在当前频带内，在中心频点不变，只改变带宽的情况下，射频重调时间可以是20微秒(μs)，对应的时域符号数量在子载波间隔为30kHz时约1个时域符号，在子载波间隔为60kHz时约2个时域符号。若BWP切换发生在频带内，且中心频点改变的情况下，射频重调所需的时间为50-200μs，对应的时域符号数量在子载波间隔为30kHz时约2-6个时域符号，在子载波间隔为60kHz时约3-12个时域符号。若BWP切换发生在其他频带，即跨频带操作(Inter-band operation)，射频重调时间为900μs，对应的时域符号数量在子载波间隔为30kHz时约26个时域符号，在子载波间隔为60kHz时约51个时域符号。
需要说明的是，终端设备将激活的BWP从第一BWP切换至第二BWP的过程中，终端设备在第一BWP上进行通信，以及在第二BWP上进行通信之间存在一段时间间隔，在该时间间隔内终端设备无法进行收发操作。基于此，在本申请一实施例中，步骤420中终端设备通过第二BWP进行通信，可以通过以下方式实现：
终端设备经过第二时间段后，在第二BWP上进行通信。
其中，第二时间段可以包括终端设备从第一BWP切换到第二BWP的时间段。
也就是说，第二时间段至少包括终端设备从第一BWP切换到第二BWP的时间段。换句话说，第二时间段可以包括上文所述的终端设备在第一BWP上进行通信，以及在第二BWP上进行通信之间的时间间隔。
本申请实施例中，经过终端设备第二时间段可以包括终端设备不在第一BWP上进行通信，至终端设备在第二BWP上进行通信的时间段。
终端设备可以避开不执行收发操作的第二时间段。也就是说，终端设备可以在第二时间段内不传输数据。经过第二时间段后，在第二BWP上进行通信，以此避免终端设备在第二时间段内无法进行收发操作，造成数据丢失的问题，从而保证数据的正确传输。
可选地，终端设备不传输数据可以包括终端设备不接收指定数据，示例性的，指定数据可以是PDSCH、PDCCH等，本申请实施例对此不做限制。终端设备不传输数据也可以包括终端设备不对接收到的信息进行解调或者解码，或者终端设备不对接收到的信息进行解调和解码之外的其他操作， 或者终端设备将接收到的数据视为错误情况(error case)，本申请实施例对此不做限制。
此外，网络设备可以避开在第二时间段内与终端设备进行数据交互。具体来讲，网络设备可以根据表2中的时间长度，确定终端设备进行射频重调和/或基带参数重配置的时间段，避免为终端设备调度第二时间段内的数据。
可选地，第二时间段可以由第一信息指示。示例性的，第一信息中可以包括时延指示域，通过该时延指示域指示第二时间段。
进一步地，终端设备在经过第二时间段后，可以开始在第二BWP上进行通信。以下行调度为例，参考图9所示，终端设备在BWP 1上接收DCI 1(即第一信息)，DCI 1中的BWP指示信息指示BWP 2，DCI 1中的资源调度信息可以指示PDSCH 1。终端设备接收到DCI 1之后，可以根据DCI 1的指示进行射频重调和/或基带参数重配置，经过第二时间段，将激活的BWP 1切换到BWP 2。可以看出，在经过第二时间段后，终端设备可以在BWP 2的时频资源上接收DCI 1调度的PDSCH 1。
需要说明的是，终端设备在第二BWP上完成通信后，将激活的BWP从第二BWP切换为第一BWP的过程中，终端设备需要再次进行射频重调和/或基带参数重配置，将射频资源从第二BWP切换至原来的第一BWP，以使终端设备重新在第一BWP上进行通信。
应理解，终端设备在进行射频重调和/或基带参数重配置期间，终端设备无法进行正常的收发操作。也就是说，终端设备将激活的BWP从第二BWP切换为第一BWP的过程中，终端设备在第二BWP上进行通信，以及在第一BWP上进行通信之间在一段时间间隔，在该时间间隔内终端设备无法进行收发操作。
基于此，终端设备可以在第二BWP传输完成后，经过第一时间段，重新在第一BWP上进行通信；其中，第一时间段可以包括终端设备将激活的BWP从第二BWP切换至第一BWP的时间段。
可以理解的是，第一时间段至少可以包括终端设备将激活的BWP从第二BWP切换至第一BWP所消耗的时间段。
也就是说，第一时间段至少包括终端设备从第二BWP切换到第一BWP的时间段。第一时间段可以是终端设备在第二BWP上进行通信，以及在第一BWP上进行通信之间的时间间隔。也可以理解为，经过第一时间段可以是终端设备不在第二BWP上进行通信，到终端设备在第一BWP上进行通信的时间段。
终端设备可以避开从第二BWP切换至第一BWP的第一时间段，在该第一时间段内不传输数据。经过第一时间段后，终端设备可以重新在第一BWP上进行通信，以避免终端设备在第一时间段内无法进行收发操作，造成数据丢失的问题，从而保证数据的正确传输。
其中，终端设备不传输数据可以包括终端设备不接收指定数据，示例性的，指定数据可以是PDSCH、PDCCH等，本申请实施例对此不做限制。终端设备不传输数据也可以包括终端设备不对接收到的信息进行解调或者解码，或者终端设备不对接收到的信息进行解调和解码之外的其他操作，或者终端设备将接收到的数据视为错误情况(error case)，本申请实施例对此不做限制。
可以理解的是，步骤4中，终端设备可以进行两次BWP切换，因此，终端设备可以在第一时间段和第二时间段均不接收数据。
参考图9所示，以下行调度为例，终端设备在BWP 1上接收DCI 1(即第一信息)，DCI 1中的BWP指示信息指示BWP 2，DCI 1中的资源调度信息可以指示PDSCH 1。终端设备接收到DCI 1之后，可以根据DCI 1的指示进行射频重调和/或基带参数重配置，经过第二时间段，将激活的BWP 1切换到BWP 2。终端设备可以在BWP 2的时频资源上接收DCI 1调度的PDSCH 1。在完成PDSCH 1接收之后，终端设备可以主动进行射频重调和/或基带参数重配置，经过第一时间段，将激活的BWP 2切换到BWP 1。其中，第二次BWP切换不需要指令指示，在PDSCH 1接收完成后，自动切换到BWP 1。这样，终端设备可以在BWP 1上继续接收DCI 2，并接收DCI 2调度的PDSCH 2。
在一些实施例中，网络设备可以避免在第一时间段和第二时间段内的时域资源上针对终端设备进行资源调度。可以理解的是，网络设备在进行跨BWP调度的时候，可以根据表2所示的要求，将所调度的时域资源避开终端设备进行射频重调和/或基带参数重配置的时间段。
在一些实施例中，若终端设备接收到网络设备针对第一时间段和/或第二时间段内时域资源的调度信息，则终端设备可以将该调度信息视为错误情况(error case)，可以不对该该调度信息进行响应，例如终端设备可以不接收网络设备调度的PDSCH。
以下行调度为例，参考图10A所示，终端设备可以在BWP 1上接收DCI 1(即第一信息)，DCI 1包括BWP指示信息，该BWP指示信息指示BWP 2。DCI 1中还包括资源调度信息，分别调度PDSCH 1和PDSCH 2。其中，PDSCH 1的时频资源位于第二时间段内，PDSCH 2位于切换至BWP 2后的 时域。终端设备接收到DCI 1之后，从BWP 1切换到BWP 2进行射频重调和/或基带参数重配置的时延为第二时间段。可以看出，PDSCH 1位于第二时间段的时域资源，因此，终端设备可以将调度PDSCH 1的资源调度信息视为error case。DCI 1调度的PDSCH 2在第二时间段之后到达，因此，终端设备可以正常接收该PDSCH 2.
参考图10B所示，终端设备可以在BWP 1上接收DCI 1和DCI 2，其中，DCI 1包括资源调度信息，该资源调度信息可以指示PDSCH 1和PDSCH 2。DCI 2可以包括BWP指示信息，BWP指示信息可以指示BWP 2。终端设备接收到DCI 2之后，从BWP 1切换到BWP 2进行射频重调和/或基带参数重配置的时延为第二时间段。PDSCH 1位于第二时间段内，PDSCH 2位于切换至BWP 2后的时域。终端设备可以将DCI 1中调度PDSCH 1的资源调度信息视为error case。而对于PDSCH 2终端设备可以正常接收。
可选地，参考图7B所示，步骤420a之后，本申请实施例提供的无线通信方法还可以执行以下步骤：
步骤440、终端设备在第二BWP上完成通信后，激活的BWP为第二BWP。
应理解，在步骤430中，终端设备需要进行两次射频重调和/或基带参数重配置。终端设备在两次处理时延期间不能进行收发，造成了一定的时延开销。基于此，本申请实施例步骤440中，在传输第一数据的时域资源之后的目标时长内没有针对该终端设备的数据传输时，终端设备可以仅进行一次激活的BWP切换。即将激活的BWP从第一BWP切换至第二BWP之后，终端设备可以保持激活的BWP不变。
也就是说，终端设备在第一BWP上接收第一信息，第一信息指示第二BWP。终端设备基于第一信息将激活的BWP从第一BWP切换至第二BWP。这样，终端设备在第二BWP上进行通信，并在第二BWP上完成通信后，继续以第二BWP为激活的BWP，避免不必要的BWP切换。
在一些实施例中，第一信息还用于指示在所述第二BWP的第一时频资源上传输第一数据。基于此，终端设备在第二BWP上完成通信可以是指终端设备在第二BWP的第一时频资源上完成第一数据的传输。
也就是说，终端设备在第一时频资源上完成第一数据传输后，激活的BWP仍然为第二BWP。
本申请实施例中，第一信息可以是调度DCI。该调度DCI可以指示第二BWP以及第二BWP上传输第一数据的第一时频资源。该调度DCI也可以仅指示第二BWP，而未用于调度数据。本申请实施例对调度DCI的指示内容不做限制。
在一些实施例中，步骤420a和步骤440中，终端设备可以在第二BWP上传输第一数据。因此，终端设备针对第二BWP上传输的第一数据的反馈信息，可以通过第二BWP传输。
应理解，终端设备根据第一信息可以将激活的BWP从第一BWP切换至第二BWP中，并且，终端设备在第二BWP的第一时频资源将第一数据传输完成后，仍然以第二BWP为激活的BWP。因此，在本实施例中，终端设备可以利用激活的第二BWP传输针对第一数据的反馈信息。
应理解，第一BWP和第二BWP可以仅包括下行BWP，第一BWP和第二BWP也可以包括成对的上行BWP和下行BWP。即BWP指示信息指示的BWP对应上行BWP和下行BWP，两个BWP同时处于激活状态。示例性的，对于FDD系统，第一BWP和第二BWP可以仅包括下行BWP。对于TDD系统，第一BWP和第二BWP可以包括成对的上行BWP和下行BWP。
需要说明的是，在第二BWP可以包括成对的上行BWP和下行BWP的情况下，终端设备可以在第二BWP对应的上行BWP上传输针对上述数据的反馈信息。
在本申请一实施例中，终端设备可以包括主接收机和辅接收机。
应理解，主接收机可以是终端设备中普通的接收机。辅接收机可以是低成本、低复杂度和低功耗的接收机。可选地，主接收机可以接收较大频域带宽的数据，而辅接收机由于成本和复杂度的限制，可以接收较小频域带宽的数据。
示例性的，辅接收机可以被配置为接收上述实施例中的特殊信号，例如WUS、节能信号、寻呼信号等。本申请实施例中的特殊信号可以用于唤醒主接收机。
在本申请一实施例中，本申请实施例提供的无线通信方法还可以包括以下步骤：
终端设备根据第一信息，关闭主接收机。
其中，本申请实施例中的第一信息可以在终端设备的主接收机上接收。其中，第一信息可以指示第二BWP，第二BWP与第一BWP不同。
需要说明的是，第二BWP为特殊的BWP。终端设备确定第一信息中BWP指示信息所指示的BWP为特殊的第二BWP时，可以主动关闭主接收机，只使用辅接收通信以进行省电。
示例性的，终端设备可以存储有特殊BWP的标识信息列表，若终端设备在确定第一信息所指示的BWP的标识信息包含在上述特殊BWP的标识信息列表中，则主动关闭主接收机，通过辅接收机进行通信。
可选地，基于上述实施例，本申请实施例提供的无线通信方法还可以包括以下步骤：
终端设备通过辅接收机接收第二信息，第二信息指示唤醒主接收机。
可以理解的是，终端设备关闭主接收机后，可以通过辅接收机接收信息，以降低终端设备功耗。
网络设备在需要唤醒终端设备的主接收机时，可以向终端设备发送第二信息。这样，终端设备通过当前工作的辅接收机接收该第二信息，终端设备可以根据该第二信息的指示唤醒主接收机。这样，主接收机可以重新进行数据/信息收发。
在一些实施例中，第二信息可以是控制信息，例如DCI，第二信息也可以是上述实施例的特殊信号。本申请实施例对此不做限制。
可选地，第二信息可以在第二BWP上被接收。可以理解的是，终端设备在关闭主接收机后，可以在第二BWP上进行数据/信息收发。
需要说明的是，本申请实施例中，终端设备关闭主接收机可以认为终端设备将激活的第一BWP切换为第二BWP。终端设备唤醒主接收机可以理解为将激活的BWP从第二BWP切换至第一BWP。
在一种可能的实现方式中，在第二BWP上可以配置PDCCH的搜索空间，终端设备可以在第二BWP上接收控制信息(例如DCI)，切换到其他BWP。
在另一种可能的实现方式中，特殊信号可以承载BWP指示信息，特殊信号可以在唤醒终端设备的主接收机的同时，实现BWP的切换。示例性的，终端设备存在下行数据传输需求时，网络设备可以发送特殊信号，指示终端设备唤醒主接收机。并且，特殊信号中可以包括BWP指示信息，将激活的BWP切换到大带宽的第一BWP上进行数据传输。
综上所述，本申请实施例中，终端设备可以根据第一信息将激活的BWP从第一BWP切换至第二BWP，并在第二BWP上进行通信。终端设备在第二BWP上通信完成后，可以主动将激活的BWP从第二BWP切换回原来的第一BWP，或者终端设备维持激活的BWP为第二BWP不变。
在一些实施例中，第一信息还可以指示终端设备在第二BWP上完成通信后，是否将激活的BWP从第二BWP切换至第一BWP。
可以理解的是，终端设备可以根据第一信息，确定在步骤420a之后执行步骤430还是步骤440。也就是说，终端设备可以根据第一信息，确定在第二BWP上完成通信后，将激活的BWP从第二BWP切换至第一BWP，还是将激活的BWP保持为第二BWP不变。
应理解，若网络设备后续针对该终端设备仍然有数据调度，则可以通过第一信息指示终端设备在第二BWP上完成通信后，将激活的BWP从第二BWP切换至第一BWP，也就是说，终端设备可以实现上述步骤420a和步骤430。
若网络设备后续针对该终端设备没有数据调度，则可以通过第一信息指示终端设备在第二BWP上完成通信后，继续以第二BWP为激活的BWP，也就是说，终端设备可以实现上述步骤420a和步骤440。
可选地，第一信息中可以包括第一切换指示域，该第一切换指示域的取值不同时，指示终端设备执行不同的操作。示例性的，第一切换指示域取值为第一值(例如0或1)时，可以指示终端设备在第二BWP上完成通信后，不进行激活的BWP切换，即终端设备在第二BWP上完成通信后，继续将第二BWP作为激活的BWP。第一切换指示域的取值为第二值(例如1或0)时，可以指示终端设备在第二BWP上完成通信后，进行激活的BWP切换，即终端设备在第二BWP上完成通信后，将激活的第二BWP切换至第一BWP。
综上所述，网络设备可以根据实际需要，通过第一信息指示终端设备是否将激活的BWP从第二BWP切换回原来的第一BWP，可以提高数据传输的灵活度。
在本申请一实施例中，参考图11所示，步骤420中终端设备通过第二BWP进行通信，还可以通过以下方式实现：
步骤420b、终端设备保持激活的BWP为第一BWP，并在第二BWP上进行通信。
本申请实施例中，终端设备在接收到第一信息之后，可以不改变当前激活的BWP的激活状态。也就是说，终端设备可以在接收到第一信息之后，保持第一BWP为激活的BWP，在对第一信息响应的过程中不进行激活的BWP的切换。
可以理解的是，终端设备在接收到第一信息之后，可以保持激活的BWP为第一BWP不变。终端设备可以根据第一信息的指示，在第二BWP上与终端设备进行通信。
可选地，第一信息还用于指示在第二BWP的第一时频资源上传输第一数据。基于此，终端设备在第二BWP上进行通信可以是指终端设备在第二BWP的第一时频资源上传输第一数据。
应理解，步骤420b中，终端设备激活的BWP虽然未发生改变，但是终端设备的底层硬件仍然需要进行两次射频资源的切换，第一次射频资源切换，终端设备可以进行射频重调和/或基带参数重配置，为终端设备在第二BWP上进行通信进行准备，将射频资源从第一BWP切换至第二BWP。这样，终端设备可以在第二BWP的第一时频资源上传输第一数据。第二次射频资源切换，终端设备可以再次进行射频重调和/或基带参数重配置，将射频资源从第二BWP切换至第一BWP。
需要说明的是，终端设备在上述两次射频重调和/或基带参数重配置期间，终端设备同样无法进行正常的收发操作。
基于此，步骤420b中，终端设备在第二BWP上进行通信，可以包括：终端设备经过第二时间段后，在第二BWP上进行通信。其中，第二时间段至少可以包括终端设备将射频资源从第一BWP切换至第二BWP的时间段，也可以称为终端设备在第二BWP上进行数据传输的准备时间段。
也就是说，终端设备可以避开第二时间段，终端设备可以在第一时间段内不传输数据。经过第二时间段后，在第二BWP上进行通信，以此避免终端设备在第二时间段内无法进行收发操作，造成数据丢失的问题，从而保证数据的正确传输。
此外，步骤420b中，终端设备在第二BWP上完成第一数据的传输后，终端设备需要经过第一时间段，才可以重新在第一BWP上进行通信。第一时间段为至少可以包括终端设备将射频资源从第二BWP切换至第一BWP的时间段，也可以称为终端设备在第一BWP上进行数据传输的准备时间段。
同样地，终端设备可以避开第一时间段，终端设备可以在第一时间段内不传输数据。经过第一时间段后，重新在第一BWP上进行通信，以此避免终端设备在第一时间段内无法进行收发操作，造成数据丢失的问题，从而保证数据的正确传输。
需要说明的是，在一些实施例中，在步骤420b中终端设备接收第一信息，保持激活的BWP为第一BWP，并在第二BWP上进行通信的情况下，终端设备可以保持主接收机开启，终端设备可以在辅接收机上传输第一信息调度的数据之后，继续通过主接收机进行数据/信息收发。在另一些实施例中，在步骤420b中终端设备接收第一信息，保持激活的BWP为第一BWP，并在第二BWP上进行通信的情况下，终端设备可以在将射频资源从第一BWP切换为第二BWP时，关闭主接收机，开启辅接收机，并在将射频资源从第二BWP切换为第一BWP时，关闭辅接收机，开启主接收机。本申请实施例对此不做限制。
在一些实施例中，步骤420b中，终端设备可以在第二BWP上传输第一数据。其中，终端设备针对第二BWP上传输的第一数据的反馈信息，可以通过第一BWP传输，或者，第二BWP传输。
应理解，本申请实施例中，终端设备可以在进行第二次射频资源切换之前，在第二BWP上传输针对该数据的反馈信息。终端设备也可以在完成第二次射频资源切换后，在激活的第一BWP上传输针对该数据的反馈信息，本申请实施例对此不做限制。
需要说明的是，终端设备可以选择以上中的任意一种方式发送数据的反馈信息，本申请实施例对此不做限制。
应理解，第一BWP和第二BWP可以仅包括下行BWP，第一BWP和第二BWP也可以包括成对的上行BWP和下行BWP。即BWP指示信息指示的BWP对应上行BWP和下行BWP，两个BWP同时处于激活状态。示例性的，对于FDD系统，第一BWP和第二BWP可以仅包括下行BWP。对于TDD系统，第一BWP和第二BWP可以包括成对的上行BWP和下行BWP。
需要说明的是，第一BWP和第二BWP可以包括成对的上行BWP和下行BWP。这样，终端设备可以在第一BWP对应的上行BWP上传输针对上述数据的反馈信息，或者，终端设备可以在第二BWP对应的上行BWP上传输针对上述数据的反馈信息。
在一些实施例中，第一信息还可以指示是否将激活的BWP从第一BWP切换至第二BWP。
也就是说，终端设备可以根据第一信息，执行步骤420a，或者，执行步骤420b。也就是说，第一信息可以指示终端设备接收到第一信息后，将激活的BWP从第一BWP切换至第二BWP上并在第二BWP上进行通信，还是保持激活的BWP为第一BWP并在第二BWP上进行通信。
可选地，第一信息中可以包括第二切换指示域，该第二切换指示域的取值不同时，指示终端设备执行不同的操作。示例性的，第二切换指示域取值为第一值(例如0或1)时，可以指示终端设备将激活的BWP切换为第二BWP。第一切换指示域的取值为第二值(例如1或0)时，可以指示终端设备保持激活的BWP为第一BWP不变。
在一些实施例中，第一信息可以同时指示是否将激活的BWP从第一BWP切换至第二BWP，以及指示终端设备在第二BWP上完成通信后，是否将激活的BWP从第二BWP切换至第一BWP。也就是说，第一信息可以包括第一切换指示域和第二切换指示域。
示例性的，第二切换指示域指示取值为第一值，且第一切换指示域取值为第一值，终端设备可以确定将激活的BWP切换为第二BWP进行通信，并且在第二BWP上完成通信后，不进行激活的BWP切换，继续将第二BWP作为激活的BWP。第二切换指示域指示取值为第一值，且第一切换指示域取值为第二值，终端设备可以确定将激活的BWP切换为第二BWP进行通信，并且在第二BWP上完成通信后，主动将激活的BWP切换切换回原来的BWP。另外，第二切换指示域指示取值为第二值，且第一切换指示域取值为第一值或第二值，终端设备可以确定保持激活的BWP为第一BWP不变，仅在第二BWP进行通信。
以上结合附图详细描述了本申请的优选实施方式，但是，本申请并不限于上述实施方式中的具体细节，在本申请的技术构思范围内，可以对本申请的技术方案进行多种简单变型，这些简单变型均属于本申请的保护范围。例如，在上述具体实施方式中所描述的各个具体技术特征，在不矛盾的情况下，可以通过任何合适的方式进行组合，为了避免不必要的重复，本申请对各种可能的组合方式不再另行说明。又例如，本申请的各种不同的实施方式之间也可以进行任意组合，只要其不违背本申请的思想，其同样应当视为本申请所公开的内容。又例如，在不冲突的前提下，本申请描述的各个实施例和/或各个实施例中的技术特征可以和现有技术任意的相互组合，组合之后得到的技术方案也应落入本申请的保护范围。
还应理解，在本申请的各种方法实施例中，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。此外，在本申请实施例中，术语“下行”、“上行”和“侧行”用于表示信号或数据的传输方向，其中，“下行”用于表示信号或数据的传输方向为从站点发送至小区的用户设备的第一方向，“上行”用于表示信号或数据的传输方向为从小区的用户设备发送至站点的第二方向，“侧行”用于表示信号或数据的传输方向为从用户设备1发送至用户设备2的第三方向。例如，“下行信号”表示该信号的传输方向为第一方向。另外，本申请实施例中，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。具体地，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。
图12是本申请实施例提供的无线通信装置的结构组成示意图一，应用于终端设备，如图12所示，所述无线通信装置包括：
第一收发单元1201，被配置为在第一带宽部分BWP上接收第一信息，所述第一信息用于指示第二BWP；所述第一BWP为终端设备当前激活的BWP；
所述第一收发单元1201，还被配置为在所述第二BWP上进行通信。
在一些实施例中，第一收发单元1201中可以包括切换单元，被配置为将所述激活的BWP从所述第一BWP切换至所述第二BWP。
在一些实施例中，所述切换单元，还被配置为在所述第二BWP上完成通信后，将所述激活的BWP从所述第二BWP切换至所述第一BWP。
在一些实施例中，所述第一信息还用于指示在所述第二BWP的第一时频资源上传输第一数据，所述第一收发单元1201，还可以被配置为在所述第一时频资源完成所述第一数据的传输。
在一些实施例中，所述第一收发单元1201，还被配置为在所述第一BWP上传输所述第一数据的反馈信息；
或者，
在所述第二BWP上传输所述第一数据的反馈信息。
在一些实施例中，所述切换单元，还被配置为经过第一时间段，所述终端设备切换至所述第一BWP。
在一些实施例中，所述终端设备包括主接收机和辅接收机；所述无线通信装置还包括控制单元，被配置为根据所述第一信息，关闭所述主接收机。
在一些实施例中，所述第一收发单元1201，还被配置为通过所述辅接收机接收第二信息，所述第二信息指示唤醒所述主接收机。
在一些实施例中，所述第二信息在所述第二BWP上被接收。
在一些实施例中，所述第一收发单元1201，还被配置为保持激活的BWP为所述第一BWP，并在所述第二BWP上进行所述通信。
在一些实施例中，所述第一信息还用于指示在所述第二BWP的第一时频资源上传输第一数据；所述第一收发单元1201，还被配置为在所述第二BWP的所述第一时频资源上传输所述第一数据。
在一些实施例中，所述第一收发单元1201，还被配置为所述终端设备在所述第一BWP上传输所述第一数据的反馈信息；
或者，
所述终端设备在所述第二BWP上传输所述第一数据的反馈信息。
在一些实施例中，所述第一信息还用于指示是否将激活的BWP从所述第一BWP切换至所述第二BWP。
在一些实施例中，所述第一信息还用于指示在所述第二BWP上完成所述通信后，是否将所述激活的BWP从所述第二BWP切换至所述第一BWP。
在一些实施例中，所述第二BWP为以下中的至少一项：
唤醒信号WUS所在的BWP、节能信号所在的BWP、寻呼信号所在的BWP。
在一些实施例中，所述第一收发单元1201，还被配置为经过第二时间段后，在所述第二BWP上进行通信；其中，所述第二时间段为所述终端设备将激活的BWP从所述第一BWP切换至所述第二BWP的时间段，或者，所述第二时间段为所述终端设备在所述第二BWP上进行通信的准备时间段。
本领域技术人员应当理解，本申请实施例的上述无线通信装置的相关描述可以参照本申请实施例的无线通信方法的相关描述进行理解。
图13是本申请实施例提供的无线通信装置的结构组成示意图二，应用于网络设备，如图13所示，所述无线通信装置包括：
第二收发单元1301，被配置为在第一BWP上向终端设备发送第一信息，所述第一信息用于指示第二BWP；所述第一BWP为终端设备当前激活的BWP；
所述第二收发单元1301，还被配置为在所述第二BWP上与所述终端设备进行通信。
在一些实施例中，所述无线通信装置还包括确定单元，被配置为确定所述终端设备将所述激活的BWP从所述第一BWP切换至所述第二BWP
在一些实施例中，确定单元还配置为在所述第二BWP上与所述终端设备完成通信后，确定所述终端设备激活的BWP从所述第二BWP切换至所述第一BWP。
在一些实施例中，所述第一信息还用于指示在所述第二BWP的第一时频资源上传输第一数据，所述确定单元，还被配置为在所述第一时频资源与所述终端设备完成所述第一数据的传输。
在一些实施例中，第二收发单元1301，还被配置为在所述第一BWP上传输所述第一数据的反馈信息；
或者，
在所述第二BWP上传输所述第一数据的反馈信息。
在一些实施例中，第二收发单元1301，还被配置为经过第一时间段，确定所述终端设备切换至所述第一BWP。
在一些实施例中，所述确定单元，还被配置为确定所述终端设备保持激活的BWP为所述第一BWP；
所述第二收发单元1301，还被配置为在所述第二BWP上与所述终端设备进行所述通信。
在一些实施例中，第一信息还用于指示在所述第二BWP的第一时频资源上传输第一数据，所述第二收发单元1301，还被配置为在所述第二BWP的所述第一时频资源上传输所述第一数据。
在一些实施例中，所述第二收发单元1301，还被配置为在所述第一BWP上传输所述第一数据的反馈信息；
或者，在所述第二BWP上传输所述第一数据的反馈信息。
在一些实施例中，所述终端设备包括主接收机和辅接收机；所述第一信息还用于指示关闭所述主接收机。
在一些实施例中，第二收发单元1301，还被配置为发送第二信息，所述第二指示唤醒所述主接收机。
在一些实施例中，所述第二信息在所述第二BWP上传输。
在一些实施例中，所述第一信息还用于指示是否将激活的BWP从所述第一BWP切换至所述第二BWP。
在一些实施例中，所述第一信息还用于指示在所述第二BWP上完成通信后，是否将所述激活的 BWP从所述第二BWP切换至所述第一BWP。
在一些实施例中，所述第二BWP为以下中的至少一项：
WUS所在的BWP、节能信号所在的BWP、寻呼信号所在的BWP。
在一些实施例中，第二收发单元1301，还被配置为经过第二时间段后，在所述第二BWP上进行通信。
本领域技术人员应当理解，本申请实施例的上述无线通信装置的相关描述可以参照本申请实施例的无线通信方法的相关描述进行理解。
图14是本申请实施例提供的一种通信设备1400示意性结构图。该通信设备可以终端设备，也可以是网络设备。图14所示的通信设备1400包括处理器1410，处理器1410可以从存储器中调用并运行计算机程序，以实现本申请实施例中的方法。
可选地，如图14所示，通信设备1400还可以包括存储器1420。其中，处理器1410可以从存储器1420中调用并运行计算机程序，以实现本申请实施例中的方法。
其中，存储器1420可以是独立于处理器1410的一个单独的器件，也可以集成在处理器1410中。
可选地，如图14所示，通信设备1400还可以包括收发器1430，处理器1410可以控制该收发器1430与其他设备进行通信，具体地，可以向其他设备发送信息或数据，或接收其他设备发送的信息或数据。
其中，收发器1430可以包括发射机和接收机。收发器1430还可以进一步包括天线，天线的数量可以为一个或多个。
可选地，该通信设备1400具体可为本申请实施例的网络设备，并且该通信设备1400可以实现本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该通信设备1400具体可为本申请实施例的移动终端/终端设备，并且该通信设备1400可以实现本申请实施例的各个方法中由移动终端/终端设备实现的相应流程，为了简洁，在此不再赘述。
图15是本申请实施例的芯片的示意性结构图。图15所示的芯片1500包括处理器1510，处理器1510可以从存储器中调用并运行计算机程序，以实现本申请实施例中的方法。
可选地，如图15所示，芯片1500还可以包括存储器1520。其中，处理器1510可以从存储器1520中调用并运行计算机程序，以实现本申请实施例中的方法。
其中，存储器1520可以是独立于处理器1510的一个单独的器件，也可以集成在处理器1510中。
可选地，该芯片1500还可以包括输入接口1530。其中，处理器1510可以控制该输入接口1530与其他设备或芯片进行通信，具体地，可以获取其他设备或芯片发送的信息或数据。
可选地，该芯片1500还可以包括输出接口1540。其中，处理器1510可以控制该输出接口1540与其他设备或芯片进行通信，具体地，可以向其他设备或芯片输出信息或数据。
可选地，该芯片可应用于本申请实施例中的网络设备，并且该芯片可以实现本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该芯片可应用于本申请实施例中的移动终端/终端设备，并且该芯片可以实现本申请实施例的各个方法中由移动终端/终端设备实现的相应流程，为了简洁，在此不再赘述。
应理解，本申请实施例提到的芯片还可以称为系统级芯片，系统芯片，芯片系统或片上系统芯片等。
图16是本申请实施例提供的一种通信系统1600的示意性框图。如图16所示，该通信系统1600包括终端设备1610和网络设备1620。
其中，该终端设备1610可以用于实现上述方法中由终端设备实现的相应的功能，以及该网络设备1620可以用于实现上述方法中由网络设备实现的相应的功能为了简洁，在此不再赘述。
应理解，本申请实施例的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，本文描述的系统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。
应理解，上述存储器为示例性但不是限制性说明，例如，本申请实施例中的存储器还可以是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(synch link DRAM，SLDRAM)以及直接内存总线随机存取存储器(Direct Rambus RAM，DR RAM)等等。也就是说，本申请实施例中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。
本申请实施例还提供了一种计算机可读存储介质，用于存储计算机程序。
可选的，该计算机可读存储介质可应用于本申请实施例中的网络设备，并且该计算机程序使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该计算机可读存储介质可应用于本申请实施例中的移动终端/终端设备，并且该计算机程序使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现的相应流程，为了简洁，在此不再赘述。
本申请实施例还提供了一种计算机程序产品，包括计算机程序指令。
可选的，该计算机程序产品可应用于本申请实施例中的网络设备，并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该计算机程序产品可应用于本申请实施例中的移动终端/终端设备，并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现的相应流程，为了简洁，在此不再赘述。
本申请实施例还提供了一种计算机程序。
可选的，该计算机程序可应用于本申请实施例中的网络设备，当该计算机程序在计算机上运行时，使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该计算机程序可应用于本申请实施例中的移动终端/终端设备，当该计算机程序在计算机上运行时，使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现的相应流程，为了简洁，在此不再赘述。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以 是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、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所述以权利要求的保护范围为准。

Claims (40)

  1. 一种无线通信方法，所述方法包括：
    终端设备在第一带宽部分BWP上接收第一信息，所述第一信息用于指示第二BWP；所述第一BWP为终端设备当前激活的BWP；
    所述终端设备在所述第二BWP上进行通信。
  2. 根据权利要求1所述的方法，其中，所述终端设备在所述第二BWP上进行通信，包括：
    所述终端设备将所述激活的BWP从所述第一BWP切换至所述第二BWP。
  3. 根据权利要求2所述的方法，其中，所述方法还包括：
    所述终端设备在所述第二BWP上完成通信后，将所述激活的BWP从所述第二BWP切换至所述第一BWP。
  4. 根据权利要求3所述的方法，其中，所述第一信息还用于指示在所述第二BWP的第一时频资源上传输第一数据，所述终端设备在所述第二BWP上完成通信，包括：
    所述终端设备在所述第一时频资源完成所述第一数据的传输。
  5. 根据权利要求4所述的方法，其中，所述方法还包括：
    所述终端设备在所述第一BWP上传输所述第一数据的反馈信息；
    或者，
    所述终端设备在所述第二BWP上传输所述第一数据的反馈信息。
  6. 根据权利要求3-5任一项所述的方法，其中，所述将所述激活的BWP从所述第二BWP切换至所述第一BWP，包括：
    经过第一时间段，所述终端设备切换至所述第一BWP。
  7. 根据权利要求1所述的方法，其中，所述终端设备在所述第二BWP上进行通信，包括：
    所述终端设备保持激活的BWP为所述第一BWP，并在所述第二BWP上进行所述通信。
  8. 根据权利要求7所述的方法，其中，所述第一信息还用于指示在所述第二BWP的第一时频资源上传输第一数据，所述在所述第二BWP进行所述通信，包括：
    所述终端设备在所述第二BWP的所述第一时频资源上传输所述第一数据。
  9. 根据权利要求8所述的方法，其中，
    所述终端设备在所述第一BWP上传输所述第一数据的反馈信息；
    或者，
    所述终端设备在所述第二BWP上传输所述第一数据的反馈信息。
  10. 根据权利要求1-9任一项所述的方法，其中，所述终端设备包括主接收机和辅接收机，所述方法还包括：
    所述终端设备根据所述第一信息，关闭所述主接收机。
  11. 根据权利要求10所述的方法，其中，所述方法还包括：
    所述终端设备通过所述辅接收机接收第二信息，所述第二信息指示唤醒所述主接收机。
  12. 根据权利要求11所述的方法，其中，所述第二信息在所述第二BWP上被接收。
  13. 根据权利要求1-12任一项所述的方法，其中，所述第一信息还用于指示是否将激活的BWP从所述第一BWP切换至所述第二BWP。
  14. 根据权利要求1-13任一项所述的方法，其中，所述第一信息还用于指示在所述第二BWP上完成所述通信后，是否将所述激活的BWP从所述第二BWP切换至所述第一BWP。
  15. 根据权利要求1-14任一项所述的方法，其中，所述第二BWP包括以下中的至少一项：
    唤醒信号WUS所在的BWP、节能信号所在的BWP、寻呼信号所在的BWP。
  16. 根据权利要求1-15任一项所述的方法，其中，所述终端设备在所述第二BWP上进行通信，包括：
    所述终端设备经过第二时间段后，在所述第二BWP上进行所述通信。
  17. 一种无线通信方法，所述方法包括：
    网络设备在第一带宽部分BWP上向终端设备发送第一信息，所述第一信息用于指示第二BWP；所述第一BWP为终端设备当前激活的BWP；
    所述网络设备在所述第二BWP上与所述终端设备进行通信。
  18. 根据权利要求17所述的方法，其中，所述网络设备在所述第二BWP上与所述终端设备进行通信，包括：
    所述网络设备确定所述终端设备将所述激活的BWP从所述第一BWP切换至所述第二BWP。
  19. 根据权利要求18所述的方法，其中，所述方法还包括：
    所述网络设备在所述第二BWP上与所述终端设备完成通信后，确定所述终端设备激活的BWP从所述第二BWP切换至所述第一BWP。
  20. 根据权利要求19所述的方法，其中，所述第一信息还用于指示在所述第二BWP的第一时频资源上传输第一数据，所述网络设备在所述第二BWP上与所述终端设备完成通信，包括：
    所述网络设备在所述第一时频资源与所述终端设备完成所述第一数据的传输。
  21. 根据权利要求20所述的方法，其中，所述方法还包括：
    所述网络设备在所述第一BWP上传输所述第一数据的反馈信息；
    或者，
    所述网络设备在所述第二BWP上传输所述第一数据的反馈信息。
  22. 根据权利要求19-21任一项所述的方法，其中，所述确定所述终端设备激活的BWP从所述第二BWP切换至所述第一BWP，包括：
    经过第一时间段，所述网络设备确定所述终端设备切换至所述第一BWP。
  23. 根据权利要求17所述的方法，其中，所述网络设备在所述第二BWP上与所述终端设备进行通信，包括：
    所述网络设备确定所述终端设备保持激活的BWP为所述第一BWP，并在所述第二BWP上与所述终端设备进行所述通信。
  24. 根据权利要求23所述的方法，其中，所述第一信息还用于指示在所述第二BWP的第一时频资源上传输第一数据，所述在所述第二BWP上与所述终端设备进行所述通信，包括：
    所述网络设备在所述第二BWP的所述第一时频资源上传输所述第一数据。
  25. 根据权利要求24所述的方法，其中，
    所述网络设备在所述第一BWP上传输所述第一数据的反馈信息；
    或者，
    所述网络设备在所述第二BWP上传输所述第一数据的反馈信息。
  26. 根据权利要求17-25任一项所述的方法，其中，所述终端设备包括主接收机和辅接收机，所述第一信息还用于指示关闭所述主接收机。
  27. 根据权利要求26所述的方法，其中，所述方法还包括：
    所述网络设备发送第二信息，所述第二指示唤醒所述主接收机。
  28. 根据权利要求27所述的方法，其中，所述第二信息在所述第二BWP上传输。
  29. 根据权利要求17-28任一项所述的方法，其中，所述第一信息还用于指示是否将激活的BWP从所述第一BWP切换至所述第二BWP。
  30. 根据权利要求17-29任一项所述的方法，其中，所述第一信息还用于指示在所述第二BWP上完成通信后，是否将所述激活的BWP从所述第二BWP切换至所述第一BWP。
  31. 根据权利要求17-30任一项所述的方法，其中，所述第二BWP包括以下中的至少一项：
    唤醒信号WUS所在的BWP、节能信号所在的BWP、寻呼信号所在的BWP。
  32. 根据权利要求17-31任一项所述的方法，其中，所述网络设备与所述终端设备在所述第二BWP上进行通信，包括：
    所述网络设备经过第二时间段后，在所述第二BWP上进行所述通信。
  33. 一种无线通信装置，应用于终端设备，所述装置包括：
    第一收发单元，被配置为在第一带宽部分BWP上接收第一信息，所述第一信息用于指示第二BWP；所述第一BWP为终端设备当前激活的BWP；
    所述第一收发单元，还被配置为在所述第二BWP上进行通信。
  34. 一种无线通信装置，应用于网络设备，所述装置包括：
    第二收发单元，被配置为在第一带宽部分BWP上向终端设备发送第一信息，所述第一信息用于指示第二BWP；所述第一BWP为终端设备当前激活的BWP；
    所述第二收发单元，还被配置为在所述第二BWP上与所述终端设备进行通信。
  35. 一种终端设备，包括：处理器和存储器，该存储器用于存储计算机程序，所述处理器用于调用并运行所述存储器中存储的计算机程序，执行如权利要求1至16中任一项所述的方法。
  36. 一种网络设备，包括：处理器和存储器，该存储器用于存储计算机程序，所述处理器用于调用并运行所述存储器中存储的计算机程序，执行如权利要求17至32中任一项所述的方法。
  37. 一种芯片，包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有所述芯片的设备执行如权利要求1至16中任一项所述的方法，或者，使得安装有所述芯片的设备执行如权利要求17至32中任一项所述的方法。
  38. 一种计算机存储介质，用于存储计算机程序，所述计算机程序使得终端设备执行如权利要求1至16中任一项所述的方法，或者，所述计算机程序使得网络设备执行如权利要求17至32中任一项所述的方法。
  39. 一种计算机程序产品，包括计算机程序指令，所述计算机程序指令使得终端设备执行如权利要求1至16中任一项所述的方法，或者，所述计算机程序指令使得网络设备执行如权利要求17至32中任一项所述的方法。
  40. 一种计算机程序，所述计算机程序使得终端设备执行如权利要求1至16中任一项所述的方法，或者，所述计算机程序使得网络设备执行如权利要求17至32中任一项所述的方法。
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