WO2023143011A1 - 一种通信方法和装置 - Google Patents

一种通信方法和装置 Download PDF

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Publication number
WO2023143011A1
WO2023143011A1 PCT/CN2023/071343 CN2023071343W WO2023143011A1 WO 2023143011 A1 WO2023143011 A1 WO 2023143011A1 CN 2023071343 W CN2023071343 W CN 2023071343W WO 2023143011 A1 WO2023143011 A1 WO 2023143011A1
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WIPO (PCT)
Prior art keywords
bandwidth
terminal device
frequency domain
maximum
bwp
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PCT/CN2023/071343
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English (en)
French (fr)
Inventor
侯海龙
金哲
孙欢
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华为技术有限公司
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Publication of WO2023143011A1 publication Critical patent/WO2023143011A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/08—Load balancing or load distribution
    • H04W28/09—Management thereof
    • H04W28/0958—Management thereof based on metrics or performance parameters
    • H04W28/0967—Quality of Service [QoS] parameters
    • H04W28/0983—Quality of Service [QoS] parameters for optimizing bandwidth or throughput
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/08—Load balancing or load distribution
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18—Negotiating wireless communication parameters
    • H04W28/20—Negotiating bandwidth

Definitions

  • the embodiments of the present application relate to the communication field, and in particular, to a communication method and device.
  • the fifth generation (the 5th generation, 5G) mobile communication technology new radio (new radio, NR) is a global 5G standard based on a new air interface design based on orthogonal frequency division multiplexing (OFDM).
  • OFDM orthogonal frequency division multiplexing
  • BWP bandwidth part
  • network devices can configure BWP for terminal devices. When the bandwidth of the BWP is less than or equal to the maximum bandwidth of the terminal device, the terminal device can communicate with the network device.
  • the bandwidth of a terminal device includes radio frequency bandwidth and baseband bandwidth.
  • the bandwidth of the BWP bandwidth is smaller than or equal to the bandwidth of the terminal device.
  • the bandwidth configuration of the BWP refers to the radio frequency bandwidth or the baseband bandwidth. Therefore, how to configure the bandwidth of the BWP so that it can be applied to terminal devices with different bandwidth capabilities is an urgent problem to be solved.
  • the present application provides a communication method and device, so that network equipment can configure BWP for terminal equipment with different radio frequency bandwidth and baseband bandwidth.
  • the present application provides a communication method, and the execution subject of the method may be a terminal device, or may be a chip applied in the terminal device.
  • the following description is made by taking the execution subject as a terminal device as an example.
  • the method may include: the terminal device receives BWP configuration information from the network device, the BWP includes at least a first bandwidth and a second bandwidth, the first bandwidth is determined according to the radio frequency bandwidth of the terminal device, and the second bandwidth is determined according to the terminal device The baseband bandwidth is determined.
  • the terminal device communicates with the network device through the BWP.
  • the BWP bandwidth configured by the network device for the terminal device may include two parts, such as the first bandwidth and the second bandwidth, and the first bandwidth is determined according to the radio frequency bandwidth of the terminal device, and the second bandwidth is determined according to the The baseband bandwidth is determined, that is, the first bandwidth can be configured based on the radio frequency bandwidth, and the second bandwidth can be configured based on the baseband bandwidth.
  • the BWP configured by the network device for the terminal device can take into account both the RF bandwidth and the baseband bandwidth, so that the BWP can be applied not only to the terminal device with the same RF bandwidth and baseband bandwidth, but also to the terminal device with different RF bandwidth and baseband bandwidth. Terminal Equipment. Therefore, through the above solution, terminal devices with various bandwidth capabilities can be connected to the network device, and then communicate with the network device.
  • the first bandwidth is used to indicate the maximum range of frequency domain resources used by the terminal device to receive or send signals;
  • the second bandwidth is used to indicate the frequency domain resources used by the terminal device to receive or send signals The maximum transmission bandwidth of domain resources.
  • the size of the first bandwidth is less than or equal to the maximum radio frequency bandwidth of the terminal device, and the size of the second bandwidth is less than or equal to the maximum baseband bandwidth of the terminal device; or, the size of the first bandwidth Both the size of the first bandwidth and the size of the second bandwidth are less than or equal to the maximum radio frequency bandwidth of the terminal device, and both are larger than the maximum baseband bandwidth of the terminal device; or, the size of the first bandwidth and the size of the second bandwidth are both smaller than or equal to the The maximum radio frequency bandwidth of the terminal device, and both are less than or equal to the maximum baseband bandwidth of the terminal device; or, the size of the first bandwidth and the size of the second bandwidth are both larger than the maximum radio frequency bandwidth of the terminal device, and both are larger than the terminal device The maximum baseband bandwidth of the device.
  • the size relationship between the first bandwidth and the second bandwidth and the maximum radio frequency bandwidth and the maximum baseband bandwidth of the terminal device can have the following four situations:
  • the bandwidth of the frequency domain resources used by the terminal device to transmit signals The size is less than or equal to the maximum baseband bandwidth of the terminal device.
  • the baseband of the terminal device does not need to process data blocks exceeding its bandwidth capability, so the processing delay will not be increased, and it is also beneficial to reduce the overall transmission delay of the signal.
  • the frequency domain resources used by the terminal device to transmit signals The size of the bandwidth is less than or equal to the maximum radio frequency bandwidth of the terminal device, and may be greater than the maximum baseband bandwidth of the terminal device. In this case, the radio frequency of the terminal device can receive all signals without causing data loss.
  • the frequency domain used by the terminal equipment to transmit signals The resource bandwidth is less than or equal to the maximum radio frequency bandwidth of the terminal device, and is less than or equal to the maximum baseband bandwidth of the terminal device.
  • the terminal device can directly reuse the existing BWP mechanism, the changes to the NR protocol are small, and the performance loss is also reduced.
  • the bandwidth of the frequency domain resources used by the terminal device to transmit signals can be larger than the maximum radio frequency bandwidth of the terminal device, and can also be larger than the maximum baseband bandwidth of the terminal device.
  • the terminal device can directly multiplex the existing signal to communicate with the network device, for example, the terminal device multiplexes the existing synchronization signal block (SSB) to communicate with the network device, thereby reducing resource overhead .
  • SSB synchronization signal block
  • the configuration information of the BWP includes at least a frequency domain position of the first bandwidth
  • the frequency domain position of the second bandwidth may be determined according to the frequency domain position of the first bandwidth.
  • the terminal device can dynamically send or receive signals on the frequency domain resources of the first bandwidth. Considering that the frequency domain position of the second bandwidth can be determined according to the frequency domain position of the first bandwidth, and when the size of the first bandwidth is less than or equal to the maximum radio frequency bandwidth of the terminal device, the terminal device in the frequency domain of the second bandwidth
  • the radio frequency may not be readjusted for switching at a location, thereby reducing the handover delay of the terminal equipment, and at the same time, the terminal equipment can also obtain greater frequency diversity gain.
  • the frequency domain position of the second bandwidth may be determined according to the frequency domain position of the first bandwidth, including: the frequency domain position of the second bandwidth may be determined according to the offset and the frequency domain position of the first bandwidth The domain location is determined.
  • the offset may be an offset of the frequency domain position of the second bandwidth relative to the frequency domain position of the first bandwidth.
  • the second bandwidth and the M frequency domain resources determined by the N frequency domain positions of the second bandwidth are M sub-BWPs in the BWP, where N and M are positive integers.
  • the method further includes: determining frequency domain resource allocation of the physical downlink shared channel PDSCH/physical uplink shared channel PUSCH according to the first bandwidth and the second bandwidth. Based on the above technical solution, the frequency domain resource allocation of the Physical Downlink Shared Channel PDSCH/Physical Uplink Shared Channel PUSCH can be determined according to the first bandwidth and the second bandwidth at the same time, so that the frequency diversity gain or the frequency selective scheduling gain can be guaranteed.
  • the resource block group granularity improves the utilization rate of frequency domain resources, and improves the detection performance of frequency domain resources of the physical downlink shared channel PDSCH/physical uplink shared channel PUSCH.
  • the number of resource block groups included in the BWP may be determined according to the first bandwidth and the second bandwidth, wherein the BWP includes The number of resource blocks is determined according to the first bandwidth, and the size of the resource block group is determined according to the second bandwidth.
  • the processing delay of the first channel/first signal of the terminal device is greater than the processing delay of the first channel/first signal of the second terminal device, wherein the first channel of the terminal device /The bandwidth of the first signal is greater than the maximum baseband bandwidth of the terminal device, and the first channel of the terminal device/The bandwidth of the first signal is less than or equal to the maximum radio frequency bandwidth of the terminal device, and the first channel of the second terminal device/ The bandwidth of the first signal is less than or equal to the maximum baseband bandwidth of the second terminal device, and the bandwidth of the first channel/first signal of the second terminal device is less than or equal to the maximum radio frequency bandwidth of the second terminal device, where "/ " stands for "or".
  • the bandwidth of the first channel/first signal of the terminal device is greater than the maximum baseband bandwidth of the terminal device, and the bandwidth of the first channel/first signal of the terminal device is less than or equal to the maximum radio frequency bandwidth of the terminal device,
  • the baseband of the terminal device can complete the processing of large data blocks by increasing the processing delay.
  • the present application provides a communication method, and the execution subject of the method may be a network device, or may be a chip applied in the network device.
  • the execution subject of the method may be a network device, or may be a chip applied in the network device. The following description is made by taking the execution subject as an example of a network device.
  • the method may include: the network device may send BWP configuration information to the terminal device, where the BWP includes at least the first bandwidth and the second bandwidth.
  • the first bandwidth is determined according to the radio frequency bandwidth of the terminal device
  • the second bandwidth is determined according to the baseband bandwidth of the terminal device.
  • the network device communicates with the terminal device according to the BWP.
  • the bandwidth of the BWP configured by the network device for the terminal device includes two parts, such as the first bandwidth and the second bandwidth, and the first bandwidth is determined according to the radio frequency bandwidth of the terminal device, and the second bandwidth is determined according to the radio frequency bandwidth of the terminal device.
  • the baseband bandwidth is determined, that is, the first bandwidth may be configured based on the radio frequency bandwidth, and the second bandwidth may be configured based on the baseband bandwidth.
  • the BWP configured by the network device for the terminal device can take into account both the RF bandwidth and the baseband bandwidth, so that the BWP can be applied not only to the terminal device with the same RF bandwidth and baseband bandwidth, but also to the terminal device with different RF bandwidth and baseband bandwidth. Terminal Equipment. Therefore, through the above solution, the network device can communicate with terminal devices with different bandwidth capabilities.
  • the first bandwidth is used to indicate the maximum range of frequency domain resources used by the terminal device to receive or send signals;
  • the second bandwidth is used to indicate the frequency domain resources used by the terminal device to receive or send signals The maximum transmission bandwidth of domain resources.
  • the size of the first bandwidth is less than or equal to the maximum radio frequency bandwidth of the terminal device, and the size of the second bandwidth is less than or equal to the maximum baseband bandwidth of the terminal device; or, the size of the first bandwidth Both the size of the first bandwidth and the size of the second bandwidth are less than or equal to the maximum radio frequency bandwidth of the terminal device, and both are larger than the maximum baseband bandwidth of the terminal device; or, the size of the first bandwidth and the size of the second bandwidth are both smaller than or equal to the The maximum radio frequency bandwidth of the terminal device, and both are less than or equal to the maximum baseband bandwidth of the terminal device; or, the size of the first bandwidth and the size of the second bandwidth are both larger than the maximum radio frequency bandwidth of the terminal device, and both are larger than the terminal device The maximum baseband bandwidth of the device.
  • the configuration information of the BWP includes at least a frequency domain position of the first bandwidth, where the frequency domain position of the second bandwidth is determined according to the frequency domain position of the first bandwidth.
  • the frequency domain position of the second bandwidth is determined according to the frequency domain position of the first bandwidth, including: the frequency domain position of the second bandwidth is determined according to the offset and the frequency domain position of the first bandwidth Determine, wherein the offset may be an offset of the frequency domain position of the second bandwidth relative to the frequency domain position of the first bandwidth.
  • the second bandwidth and the M frequency domain resources determined by the N frequency domain positions of the second bandwidth are M sub-BWPs in the BWP, where N and M are positive integers.
  • the method further includes: determining frequency domain resource allocation of the physical downlink shared channel PDSCH/physical uplink shared channel PUSCH according to the first bandwidth and the second bandwidth.
  • the number of resource block groups included in the BWP is determined according to the first bandwidth and the second bandwidth, wherein the resource block groups included in the BWP The number of blocks is determined according to the first bandwidth, and the size of the resource block group is determined according to the second bandwidth.
  • the processing delay of the first channel/first signal of the terminal device is greater than the processing delay of the first channel/first signal of the second terminal device, wherein the first channel of the terminal device /The bandwidth of the first signal is greater than the maximum baseband bandwidth of the terminal device, and the first channel of the terminal device/The bandwidth of the first signal is less than or equal to the maximum radio frequency bandwidth of the terminal device, and the first channel of the second terminal device/ The bandwidth of the first signal is less than or equal to the maximum baseband bandwidth of the second terminal device, and the bandwidth of the first channel/first signal of the second terminal device is less than or equal to the maximum radio frequency bandwidth of the second terminal device.
  • a communication device in the third aspect, and the beneficial effects may refer to the description of the first aspect, which will not be repeated here.
  • the communication device has the function of implementing the actions in the method example of the first aspect above.
  • the functions described above may be implemented by hardware, or may be implemented by executing corresponding software on the hardware.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • the communication device includes: a transceiver module, configured to receive configuration information from a bandwidth part BWP of a network device, where the BWP includes at least a first bandwidth and a second bandwidth, and the first bandwidth is based on the terminal device The radio frequency bandwidth is determined, and the second bandwidth is determined according to the baseband bandwidth of the terminal device; a processing module is configured to communicate with the network device through the BWP.
  • a transceiver module configured to receive configuration information from a bandwidth part BWP of a network device, where the BWP includes at least a first bandwidth and a second bandwidth, and the first bandwidth is based on the terminal device
  • the radio frequency bandwidth is determined, and the second bandwidth is determined according to the baseband bandwidth of the terminal device
  • a processing module is configured to communicate with the network device through the BWP.
  • a communication device configured to send configuration information of a bandwidth part BWP to a terminal device, where the BWP includes at least a first bandwidth and a second bandwidth, and the first bandwidth is based on the configuration information of the terminal device.
  • the radio frequency bandwidth is determined, and the second bandwidth is determined according to the baseband bandwidth of the terminal device; a processing module is configured to communicate with the terminal device through the BWP.
  • These modules can perform the corresponding functions in the method example of the second aspect above. For details, refer to the detailed description in the method example, and details are not repeated here.
  • a communication device is provided, and the communication device may be the terminal device in the foregoing method embodiment, or a chip provided in the terminal device.
  • the communication device includes a communication interface, a processor, and optionally, a memory.
  • the memory is used to store computer programs or instructions
  • the processor is coupled to the memory and the communication interface.
  • the communication device executes the method performed by the terminal device in the above method embodiments.
  • a communication device is provided, and the communication device may be the network device in the foregoing method embodiment, or a chip provided in the network device.
  • the communication device includes a communication interface, a processor, and optionally, a memory.
  • the memory is used to store computer programs or instructions
  • the processor is coupled to the memory and the communication interface.
  • the communication device executes the method performed by the network device in the above method embodiments.
  • a computer program product includes: computer program code, when the computer program code is executed, the method performed by the terminal device in the above aspects is executed.
  • a computer program product includes: computer program code, when the computer program code is executed, the method performed by the network device in the above aspects is executed.
  • the present application provides a system-on-a-chip, where the system-on-a-chip includes a processor, configured to implement functions of the terminal device in the methods in the foregoing aspects.
  • the chip system further includes a memory, configured to store program instructions and/or data.
  • the system-on-a-chip may consist of chips, or may include chips and other discrete devices.
  • the present application provides a system-on-a-chip, where the system-on-a-chip includes a processor, configured to implement the functions of the network device in the methods of the foregoing aspects.
  • the chip system further includes a memory, configured to store program instructions and/or data.
  • the system-on-a-chip may consist of chips, or may include chips and other discrete devices.
  • the present application provides a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, and when the computer program is run, the methods performed by the terminal device in the above aspects are implemented.
  • the present application provides a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, and when the computer program is executed, the method performed by the network device in the above aspects is implemented.
  • Fig. 1 shows a schematic diagram of a communication scenario applicable to this embodiment of the present application.
  • FIG. 2 shows a schematic diagram of a communication method 200 provided by an embodiment of the present application.
  • FIG. 3 shows a schematic diagram of a frequency domain location 300 provided by an embodiment of the present application.
  • FIG. 4 shows a schematic diagram of another frequency domain position 400 provided by the embodiment of the present application.
  • FIG. 5 shows a schematic diagram of another frequency domain position 500 provided by the embodiment of the present application.
  • FIG. 6 shows a schematic block diagram of a communication device 600 provided by an embodiment of the present application.
  • FIG. 7 shows a schematic block diagram of another communication device 700 provided by an embodiment of the present application.
  • the technical solutions of the embodiments of the present application can be applied to various communication systems, such as: fifth generation (5th generation, 5G) or new radio (new radio, NR) system, long term evolution (long term evolution, LTE) system, LTE frequency Division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD) system, etc.
  • 5G fifth generation
  • NR new radio
  • long term evolution long term evolution
  • LTE frequency Division duplex frequency division duplex
  • FDD frequency division duplex
  • TDD time division duplex
  • the technical solution provided by this application can also be applied to future communication systems, such as the sixth generation mobile communication system.
  • the technical solution provided by this application can also be applied to device to device (device to device, D2D) communication, vehicle to everything (vehicle-to-everything, V2X) communication, machine to machine (machine to machine, M2M) communication, machine type Communication (machine type communication, MTC), and Internet of things (internet of things, IoT) communication system or other communication systems.
  • D2D device to device
  • V2X vehicle-to-everything
  • M2M machine to machine
  • M2M machine type Communication
  • MTC machine type communication
  • IoT Internet of things
  • the terminal device in the embodiment of the present application may be a device that provides voice/data to users, for example, a handheld device with a wireless connection function, a vehicle-mounted device, and the like.
  • some terminals are: mobile phone (mobile phone), tablet computer, notebook computer, palmtop computer, mobile internet device (mobile internet device, MID), wearable device, virtual reality (virtual reality, VR) device, augmented reality (augmented reality, AR) equipment, wireless terminals in industrial control, wireless terminals in self driving, wireless terminals in remote medical surgery, smart grid Wireless terminals in transportation safety, wireless terminals in smart city, wireless terminals in smart home, cellular phones, cordless phones, session initiation protocol , SIP) phones, wireless local loop (wireless local loop, WLL) stations, personal digital assistants (personal digital assistant, PDA), handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, Wearable devices, terminal devices in a 5G network, or terminal devices in a future evolving public land mobile network (PLMN), etc.,
  • the terminal device may also be a wearable device.
  • Wearable devices can also be called wearable smart devices, which is a general term for the application of wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not only a hardware device, but also achieve powerful functions through software support, data interaction, and cloud interaction.
  • Generalized wearable smart devices include full-featured, large-sized, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, etc., and only focus on a certain type of application functions, and need to cooperate with other devices such as smart phones Use, such as various smart bracelets and smart jewelry for physical sign monitoring.
  • the terminal device can also be the terminal device in the IoT system.
  • IoT is an important part of the development of information technology in the future. Its main technical feature is to connect items to the network through communication technology, so as to realize Interconnection, an intelligent network that interconnects things.
  • the device for realizing the function of the terminal device may be the terminal device, or may be a device capable of supporting the terminal device to realize the function, such as a chip system or a chip, and the device may be installed in the terminal device.
  • the system-on-a-chip may be composed of chips, or may include chips and other discrete devices.
  • the network device in the embodiment of the present application may be a device for communicating with a terminal device, and the network device may be a global system for mobile communications (GSM) system or a code division multiple access (code division multiple access, CDMA)
  • GSM global system for mobile communications
  • CDMA code division multiple access
  • the base transceiver station (BTS) in the system can also be the base station (NodeB, NB) in the wideband code division multiple access (WCDMA) system, or the evolved base station (evolved base station) in the LTE system.
  • NodeB, NB base station
  • WCDMA wideband code division multiple access
  • evolved base station evolved base station
  • NodeB, eNB or eNodeB it can also be a wireless controller in the cloud radio access network (cloud radio access network, CRAN) scenario, or the network device can be a relay station, an access point, a vehicle device, a wearable device, and a 5G A network device in the network or a network device in a future evolved PLMN network, one or a group (including multiple antenna panels) antenna panels of a base station in a 5G system, or a network node constituting a gNB or a transmission point, For example, a baseband unit (baseband unit, BBU), or a distributed unit (distributed unit, DU), etc., which are not limited in this embodiment of the present application.
  • BBU baseband unit
  • DU distributed unit
  • a gNB may include a centralized unit (CU) and a DU.
  • the gNB may also include an active antenna unit (AAU).
  • the CU implements some functions of the gNB, and the DU implements some functions of the gNB.
  • the CU is responsible for processing non-real-time protocols and services, and realizes the functions of radio resource control (radio resource control, RRC) and packet data convergence protocol (packet data convergence protocol, PDCP) layer.
  • the DU is responsible for processing physical layer protocols and real-time services, realizing the functions of the radio link control (radio link control, RLC) layer, media access control (media access control, MAC) layer and physical (physical, PHY) layer.
  • the AAU implements some physical layer processing functions, radio frequency processing and related functions of active antennas. Since the information of the RRC layer will eventually become the information of the PHY layer, or be transformed from the information of the PHY layer, under this architecture, high-level signaling, such as RRC layer signaling, can also be considered to be sent by the DU , or, sent by DU+AAU.
  • the network device may be a device including one or more of a CU node, a DU node, and an AAU node.
  • the CU can be divided into network devices in an access network (radio access network, RAN), and the CU can also be divided into network devices in a core network (core network, CN), which is not limited in this application.
  • a terminal device or a network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer.
  • the hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and memory (also called main memory).
  • the operating system may be any one or more computer operating systems that implement business processing through processes, for example, Linux operating system, Unix operating system, Android operating system, iOS operating system, or windows operating system.
  • the application layer includes applications such as browsers, address books, word processing software, and instant messaging software.
  • the embodiment of the present application does not specifically limit the specific structure of the execution subject of the method provided by the embodiment of the present application, as long as the program that records the code of the method provided by the embodiment of the present application can be run to provide the method according to the embodiment of the present application.
  • the execution subject of the method provided by the embodiment of the present application may be a terminal device or a network device, or a functional module in a terminal device or a network device that can call a program and execute the program.
  • Fig. 1 shows a schematic diagram of a communication scenario applicable to this embodiment of the present application.
  • the communication system in FIG. 1 may include at least one terminal device (such as terminal device 110 , terminal device 120 , terminal device 130 , terminal device 140 , terminal device 150 and terminal device 160 ) and a network device 170 .
  • the network device 170 is used to provide communication services for the terminal device and access the core network.
  • the terminal device can access the network by searching for synchronization signals and broadcast signals sent by the network device 170, thereby establishing communication with the network device.
  • the terminal device 110 , the terminal device 120 , the terminal device 130 , the terminal device 140 and the terminal device 160 in FIG. 1 can perform uplink and downlink transmission with the network device 170 .
  • the network device 170 can send downlink signals to the terminal device 110, the terminal device 120, the terminal device 130, the terminal device 140 and the terminal device 160, and can also receive An uplink signal sent by device 160.
  • the terminal device 140, the terminal device 150, and the terminal device 160 can also be regarded as a communication system, and the terminal device 160 can send downlink signals to the terminal device 140 and the terminal device 150, and can also receive uplink signals sent by the terminal device 140 and the terminal device 150. Signal.
  • a network device can send signals to one or more endpoints. Multiple network devices can also send signals to one or more terminals at the same time.
  • BWP bandwidth part
  • RB resource block
  • RBG resource block group
  • BWP can be divided into uplink BWP and downlink BWP, wherein, the BWP used for transmitting uplink data is called uplink BWP, and the BWP used for transmitting downlink data is called downlink BWP.
  • the network device may send BWP configuration information to the terminal device, thereby configuring multiple BWPs for the terminal device.
  • the number of BWPs that a network device can configure for a terminal device is limited. For example, for a terminal device, a network device can configure a maximum of 4 BWPs, and the frequency domain resources of different BWPs can be There may or may not be overlap.
  • the number of BWPs configured by the network device for the terminal device is greater than 1, only one BWP is activated.
  • the bandwidth of the activated BWP is less than or equal to the maximum bandwidth of the terminal device, the terminal device can BWP communicates with network devices.
  • the bandwidth of the terminal device may include a radio frequency (radio frequency, RF) bandwidth and a baseband (baseband, BB) bandwidth.
  • the radio frequency bandwidth may be the bandwidth of the radio frequency processing part, wherein the radio frequency processing part may include at least one or more of the following: functional blocks such as antenna array, power amplifier, filter, RF transceiver, duplexer or converter.
  • the radio frequency bandwidth may also be the bandwidth of one or more functional blocks of the radio frequency link.
  • the baseband bandwidth can be the bandwidth of the baseband processing part, wherein the baseband processing part can at least include one or more of the following: analog-to-digital converter (analog-to-digital converter, ADC)/digital-to-analog converter (digital-to-analog converter, DAC), channel coding/decoding, fast Fourier transform (fast fourier transform, FFT)/inverse fast Fourier transform (inverse fast fourier transform, FFT) IFFF, Post-FFT data cache, receiving processing block, Hybrid auto retransmission request (HARQ) cache, downlink control processing and encoding/decoding, synchronization/cell search block, uplink processing block or multiple input multiple output (MIMO) dedicated processing block, etc. function block.
  • the baseband bandwidth may also be the bandwidth of one or more functional blocks of the baseband processing part.
  • the bandwidth configuration of BWP can refer to one of the RF bandwidth and baseband bandwidth. For example, when the bandwidth of BWP is less than or equal to the maximum RF bandwidth of the terminal device, it is also less than or equal to The maximum baseband bandwidth of the terminal device. However, for a terminal device with different radio frequency bandwidth and baseband bandwidth, when the network device configures the BWP bandwidth for the terminal device, it is unclear whether the reference radio frequency bandwidth or the reference baseband bandwidth is clear. Take the configuration of the BWP bandwidth with reference to the radio frequency bandwidth of the terminal device as an example.
  • the BWP bandwidth When the BWP bandwidth is smaller than or equal to the radio frequency bandwidth of the terminal device, the BWP bandwidth may be larger than the baseband bandwidth of the terminal device or smaller than the baseband of the BWP. bandwidth.
  • the bandwidth of the BWP is greater than the baseband bandwidth of the terminal device, the bandwidth for data transmission between the terminal device and the network device exceeds the baseband processing capability of the terminal device, resulting in transmission errors, and thus the terminal device cannot communicate with the network device.
  • the present application provides a communication method. Through this method, when the network device configures the BWP bandwidth for the terminal device, the present application can simultaneously take into account the radio frequency bandwidth and the baseband bandwidth of the terminal device, thereby enabling the terminal device to perform signal transmission with the network device.
  • FIG. 2 shows a schematic diagram of a communication method 200 provided by an embodiment of the present application. As shown in FIG. 2 , the method 200 may include the following steps.
  • the network device sends BWP configuration information to the terminal device.
  • the BWP may include at least a first bandwidth and a second bandwidth, where the first bandwidth is determined according to the radio frequency bandwidth of the terminal device, and the second bandwidth is determined according to the baseband bandwidth of the terminal device.
  • the bandwidth of the BWP configured by the network device for the terminal device can be divided into two, such as the first bandwidth and the second bandwidth, the first bandwidth can be configured based on the radio frequency bandwidth, and the second bandwidth can be configured based on the baseband bandwidth.
  • the bandwidth configuration of the BWP can take into account terminal devices with multiple bandwidth capabilities.
  • the radio frequency bandwidth of the terminal device can be the same as the baseband bandwidth of the terminal device. Baseband bandwidth is not the same.
  • the radio frequency bandwidth of the terminal device is the same as the baseband bandwidth of the terminal device. In this manner, when the first bandwidth is smaller than the radio frequency bandwidth of the terminal device, it is also smaller than the baseband bandwidth of the terminal device; when the second bandwidth is smaller than the radio frequency bandwidth of the terminal device, it is also smaller than the baseband bandwidth of the terminal device.
  • the radio frequency bandwidth of the terminal device is different from the baseband bandwidth of the terminal device.
  • the size of the first bandwidth is smaller than the radio frequency bandwidth of the terminal device, it may be larger than the baseband bandwidth of the terminal device; when the size of the second bandwidth is smaller than the radio frequency bandwidth of the terminal device, it may also be larger than the baseband bandwidth of the terminal device.
  • the terminal device receives configuration information of the BWP from the network device.
  • the terminal device communicates with the network device through the BWP.
  • the BWP configured by the network device for the terminal device can take into account both the radio frequency bandwidth and the baseband bandwidth, so that the BWP can be applied not only to the terminal device with the same radio frequency bandwidth and baseband bandwidth, but also to different radio frequency bandwidth and baseband bandwidth. terminal equipment. Therefore, through the above solution, terminal devices with different bandwidth capabilities can be connected to the network device, and then communicate with the network device.
  • the first bandwidth may be used to indicate the maximum range of frequency domain resources used by the terminal device to receive or send signals; the second bandwidth may be used to indicate the maximum transmission bandwidth of frequency domain resources used by the terminal device to receive or send signals .
  • the maximum range defines the range of frequency domain resources used by the terminal device to receive or send signals; the maximum transmission bandwidth limits the maximum value of the bandwidth of the signal received or sent by the terminal device. For example, assuming that the maximum transmission bandwidth of the frequency domain resource used by the terminal device to receive or send signals is 5MHz, then the bandwidth of the terminal device to receive or send signals should be less than or equal to 5MHz; The maximum transmission bandwidth of the frequency domain resources is 10MHz, and the bandwidth of receiving or sending signals of the terminal equipment should be less than or equal to 10MHz.
  • the second bandwidth is based on the terminal device configuration; or, the second bandwidth is based on the signal configuration received or sent by the terminal device.
  • the second bandwidth is based on terminal device configuration.
  • the bandwidth of the signal received or sent by the terminal device is determined according to the second bandwidth, and the bandwidth of the signal received or sent by the terminal device is smaller than or equal to the second bandwidth.
  • the bandwidth of the signal received or sent by the terminal device may also be greater than the radio frequency bandwidth of the terminal device.
  • the second bandwidth is configured based on a signal received or sent by the terminal device. Since different signals may correspond to different bandwidths, configurations of the second bandwidth are also different. For example, for a signal whose bandwidth is less than or equal to the radio frequency bandwidth of the terminal device, such as a signal transmitted on a physical downlink share channel (PDSCH), or a signal transmitted on a physical uplink share channel (PUSCH) For the transmitted signal, the size of the second bandwidth is also less than or equal to the radio frequency bandwidth of the terminal device at this time; for another example, for a signal with a bandwidth greater than the radio frequency bandwidth of the terminal device, such as a signal transmitted on a physical broadcast channel (physical broadcast channel, PBCH), At this time, the second bandwidth is also larger than the radio frequency bandwidth of the terminal device. It should be understood that no matter whether the bandwidth of the signal is greater than the baseband bandwidth of the terminal device, the bandwidth of the signal will never be greater than the second bandwidth.
  • PDSCH physical downlink share channel
  • PUSCH physical uplink share channel
  • the configuration information of the BWP includes at least the frequency domain position of the first bandwidth, wherein the frequency domain position of the second bandwidth is determined according to the frequency domain position of the first bandwidth.
  • the frequency domain position of the second bandwidth is determined according to an offset and the frequency domain position of the first bandwidth, where the offset is the frequency domain position of the second bandwidth relative to the frequency domain position of the first bandwidth offset.
  • the configuration information of the BWP may include the frequency domain position of the second bandwidth, or may not include the frequency domain position of the second bandwidth.
  • the offset may be indicated by the network device through signaling, for example, the offset may be indicated by downlink control information (DCI) It can also be indicated by radio resource control (radio resource control, RRC).
  • DCI downlink control information
  • RRC radio resource control
  • the offset may also be a capability value of the terminal device, or may be predefined by a protocol, which is not limited in this embodiment of the present application.
  • the second bandwidth is located within the frequency domain resource range determined by the first bandwidth and the frequency domain position of the first bandwidth.
  • the frequency domain positions of the second bandwidth include one or more frequency domain positions.
  • the second bandwidth and the M frequency domain resources determined by the N frequency domain positions of the second bandwidth are M sub-BWPs in the BWP, where N and M are positive integers.
  • N may be greater than M, may be equal to M, or may be smaller than M, and the embodiment of the present application does not limit the sizes of N and M.
  • N is equal to M, it is a preferred manner to determine N frequency domain resources according to the second bandwidth and N frequency domain positions of the second bandwidth.
  • a frequency domain resource may be determined based on the second bandwidth and the frequency domain position of the second bandwidth, and the frequency domain resource may be a sub-BWP in the BWP.
  • multiple frequency domain positions in the second bandwidth there are multiple frequency domain positions in the second bandwidth, and multiple frequency domain resources may be determined based on the second bandwidth and the frequency domain positions of the second bandwidth.
  • the multiple frequency domain resources may be defined as multiple sub-BWPs in the BWP. For example, there are five frequency domain positions in the second bandwidth, at this time, five frequency domain resources may be determined based on the second bandwidth and the frequency domain positions of the second bandwidth, and each frequency domain resource may be a sub-BWP in the BWP; For example, there are five frequency domain positions in the second bandwidth. At this time, it can be determined based on the second bandwidth and the frequency domain positions of the second bandwidth that the frequency domain resources are larger or smaller than five frequency domain resources, and each frequency domain resource can be a subset of the BWP. BWP.
  • the size relationship between the first bandwidth and the second bandwidth and the radio frequency bandwidth of the terminal device and the baseband bandwidth of the terminal device may include the following four manners.
  • Mode #1 the size of the first bandwidth is less than or equal to the maximum radio frequency bandwidth of the terminal device, and the size of the second bandwidth is less than or equal to the maximum baseband bandwidth of the terminal device.
  • the bandwidth of the signal received or sent by the terminal device is less than or equal to the maximum baseband bandwidth of the terminal device.
  • the maximum radio frequency bandwidth of the terminal equipment is 20MHz
  • the maximum baseband bandwidth of the terminal equipment is 5MHz.
  • the size of the first bandwidth should be less than or equal to 20MHz
  • the size of the second bandwidth should be less than or equal to 5MHz
  • the terminal equipment receives or The bandwidth of the transmitted signal is less than or equal to 5MHz.
  • the second bandwidth is based on the terminal device configuration; or, the second bandwidth is based on the signal configuration received or sent by the terminal device.
  • the second bandwidth is based on the terminal device configuration; or, the second bandwidth is based on the signal configuration received or sent by the terminal device.
  • the bandwidth of the frequency domain resources used by the terminal device to transmit signals is less than Or equal to the maximum baseband bandwidth of the terminal device.
  • the baseband of the terminal device does not need to process data blocks exceeding its bandwidth capability, so the processing delay will not be increased, and the overall transmission delay of the signal will also be reduced.
  • Mode #2 Both the size of the first bandwidth and the size of the second bandwidth are less than or equal to the maximum radio frequency bandwidth of the terminal device, and both are greater than the maximum baseband bandwidth of the terminal device.
  • the bandwidth of the signal received or sent by the terminal device is less than or equal to the maximum radio frequency bandwidth of the terminal device, and may be greater than the maximum baseband bandwidth of the terminal device.
  • the maximum radio frequency bandwidth of the terminal device is 20MHz
  • the maximum baseband bandwidth of the terminal device is 5MHz.
  • the size of the first bandwidth and the size of the second bandwidth should be less than or equal to 20MHz, and both can be greater than 5MHz.
  • the terminal The bandwidth of the signal received or sent by the device may be greater than 5MHz and less than or equal to 20MHz.
  • the processing delay of the first channel/first signal of the terminal device is greater than the processing delay of the first channel/first signal of the second terminal device, wherein the first channel/first signal of the terminal device
  • the bandwidth is greater than the maximum baseband bandwidth of the terminal device, and the bandwidth of the first channel/first signal of the terminal device is less than or equal to the maximum radio frequency bandwidth of the terminal device, and the bandwidth of the first channel/first signal of the second terminal device is less than or equal to the maximum baseband bandwidth of the second terminal device, and the bandwidth of the first channel/first signal of the second terminal device is less than or equal to the maximum radio frequency bandwidth of the second terminal device.
  • the first channel may be one of all channels of the terminal device or the second terminal device.
  • the first signal may be a reference signal.
  • the first signal may be one of all reference signals of the terminal device or the second terminal device.
  • the embodiment of the present application does not limit the specific form of the first channel/first signal.
  • the first channel may be PDSCH, and the first channel may also be PUSCH; for another example, the first signal may be a channel state information-reference signal (CSI-RS), and the first signal may also be a sounding Reference signal (sounding reference signal, SRS).
  • CSI-RS channel state information-reference signal
  • SRS sounding Reference signal
  • the maximum baseband bandwidth of the terminal device is smaller than the maximum baseband bandwidth of the second terminal device, and the maximum radio frequency bandwidth of the terminal device may be equivalent to the processing capability of the maximum radio frequency bandwidth of the second terminal device; or, the maximum baseband bandwidth of the terminal device is smaller than the second The maximum baseband bandwidth of the terminal device and the maximum radio frequency bandwidth of the terminal device are also smaller than the maximum radio frequency bandwidth of the second terminal device.
  • the maximum radio frequency bandwidth of the terminal device is 20 MHz
  • the maximum baseband bandwidth of the terminal device is 5 MHz
  • the maximum radio frequency bandwidth of the second terminal device is 20 MHz
  • the maximum baseband bandwidth of the second terminal device is 20 MHz.
  • the bandwidth of the PDSCH is 10 MHz.
  • the bandwidth of the PDSCH (10 MHz) is smaller than the maximum radio frequency bandwidth (20 MHz) of the second terminal device, and the radio frequency part of the second terminal device can completely receive the signal transmitted on the PDSCH.
  • the bandwidth (10MHz) of the PDSCH is smaller than the maximum baseband bandwidth (20MHz) of the second terminal device, and at this time, the baseband part of the second terminal device can complete the processing of the signal.
  • the bandwidth (10MHz) of the PDSCH is smaller than the maximum radio frequency bandwidth (20MHz) of the terminal equipment, and at this time, the terminal equipment can completely receive the signal transmitted on the PDSCH.
  • the bandwidth of the PDSCH (10MHz) is greater than the maximum baseband bandwidth (5MHz) of the terminal device.
  • the baseband part of the terminal device needs to increase the processing delay to complete the processing of the signal.
  • the processing delay may be the processing delay between the terminal device receiving the PDSCH and sending the PUCCH carrying the HARQ-ACK of the PDSCH.
  • the PUSCH bandwidth is 8 MHz.
  • the bandwidth of the PUSCH (8 MHz) is smaller than the maximum radio frequency bandwidth (20 MHz) of the second terminal device, and at this time the radio frequency part of the second terminal device can completely send the signal transmitted on the PUSCH.
  • the bandwidth (8MHz) of the PUSCH is smaller than the maximum baseband bandwidth (20MHz) of the second terminal device, and at this time, the baseband part of the second terminal device can complete the signal processing.
  • the bandwidth (8MHz) of the PUSCH is smaller than the maximum radio frequency bandwidth (20MHz) of the terminal equipment, and at this time, the terminal equipment can completely send the signal transmitted on the PUSCH.
  • the bandwidth of PUSCH (8MHz) is greater than the maximum baseband bandwidth (5MHz) of the terminal device.
  • the baseband part of the terminal device needs to increase the processing delay to complete the processing of the signal. deal with.
  • the processing delay may be the processing delay between when the terminal device receives a downlink physical control channel (physical downlink control channel, PDCCH) carrying the DCI of the PUSCH and sends the PUSCH.
  • PDCCH physical downlink control channel
  • the CSI-RS bandwidth is 15 MHz.
  • the bandwidth (15MHz) of the CSI-RS is smaller than the maximum radio frequency bandwidth (20MHz) of the second terminal device.
  • the radio frequency part of the second terminal device can completely receive the signal transmitted on the CSI-RS .
  • the bandwidth (15MHz) of the CSI-RS is smaller than the maximum baseband bandwidth (20MHz) of the second terminal device, and at this time, the baseband part of the second terminal device can complete the processing of the signal.
  • the bandwidth (15 MHz) of the CSI-RS is smaller than the maximum radio frequency bandwidth (20 MHz) of the terminal equipment, and the terminal equipment can completely receive the signal transmitted on the CSI-RS at this time.
  • the CSI-RS bandwidth (15MHz) is greater than the maximum baseband bandwidth (5MHz) of the terminal device.
  • the processing delay may be the processing delay between the terminal device receiving the DCI that triggers the CSI measurement feedback and reporting the channel state information
  • the channel state information may include one or more of the following: Reference signal receiving power (reference signal receiving power, RSRP), signal to interference plus noise ratio (signal to interference plus noise ratio, SINR), channel quality indication (channel quality indication, CQI), rank indication (rank indicator, RI), Precoding matrix indicator (precoding matrix indicator, PMI) or multiplication indicator (linear indicator, LI).
  • the time delay when the terminal device processes the signal is T3+delta3, where delta3 is the time delay when the terminal device processes the signal compared to the time delay when the second terminal device processes The time the signal is delayed by the added time.
  • the processing delay of the first channel/first signal of the terminal device is increased compared to the processing delay of the first channel/first signal of the second terminal device
  • the time can be different depending on the processing capability of the second terminal device. For example, suppose there are two second terminal devices with baseband bandwidths of 20MHz and 50MHz respectively, and the baseband bandwidth of the terminal devices is 5MHz. If the first channel/first signal of the second terminal device with a baseband bandwidth of 50MHz is processed delay is T4, then the processing delay of the first channel/first signal of the second terminal device with a baseband bandwidth of 20 MHz is T4+delta4, and the processing delay of the first channel/first signal of the terminal device is T4+delta5, And delta4 is less than delta5.
  • the second bandwidth is based on the terminal device configuration; or, the second bandwidth is based on the signal configuration received or sent by the terminal device.
  • the second bandwidth is based on the terminal device configuration; or, the second bandwidth is based on the signal configuration received or sent by the terminal device.
  • the frequency domain resources used by the terminal device to transmit signals On the premise that the bandwidth is less than or equal to the maximum radio frequency bandwidth of the terminal equipment, it can be greater than the maximum baseband bandwidth of the terminal equipment.
  • the radio frequency of the terminal device can receive all signals without causing data loss, and the baseband of the terminal device can complete the processing of large data blocks by increasing the delay.
  • Mode #3 Both the size of the first bandwidth and the size of the second bandwidth are less than or equal to the maximum radio frequency bandwidth of the terminal device, and both are less than or equal to the maximum baseband bandwidth of the terminal device.
  • the size of the first bandwidth and the size of the second bandwidth should be less than or equal to the minimum value of the maximum radio frequency bandwidth and the maximum baseband bandwidth of the terminal device at this time, and the bandwidth of the signal received or sent by the terminal device is less than or equal to that of the terminal device
  • the maximum radio frequency bandwidth of the device is also less than or equal to the maximum baseband bandwidth of the terminal device, that is, the bandwidth of the signal received or sent by the terminal device is less than or equal to the minimum value of the maximum radio frequency bandwidth and the maximum baseband bandwidth of the terminal device. For example, suppose the maximum radio frequency bandwidth of the terminal equipment is 20MHz, and the maximum baseband bandwidth of the terminal equipment is 5MHz.
  • the size of the first bandwidth and the size of the second bandwidth should be less than or equal to 20MHz, and both should be less than or equal to 5MHz, namely , the size of the first bandwidth and the size of the second bandwidth should be less than or equal to 5MHz (the minimum value of 20MHz and 5MHz), and the bandwidth of the signal received or sent by the terminal device is less than or equal to 5MHz (the minimum value of 20MHz and 5MHz).
  • the second bandwidth is based on the terminal device configuration; or, the second bandwidth is based on the signal configuration received or sent by the terminal device.
  • the second bandwidth is based on the terminal device configuration; or, the second bandwidth is based on the signal configuration received or sent by the terminal device.
  • first bandwidth and the second bandwidth may be configured, or the first bandwidth and the second bandwidth may be configured separately, which is not limited in this embodiment of the present application.
  • the frequency domain used by the terminal device to transmit signals The resource bandwidth will not be greater than the maximum radio frequency bandwidth of the terminal device, nor will it be greater than the maximum baseband bandwidth of the terminal device.
  • the terminal device can directly reuse the existing BWP mechanism, the changes to the NR protocol are small, and the performance loss is also reduced.
  • Mode #4 Both the size of the first bandwidth and the size of the second bandwidth are larger than the maximum radio frequency bandwidth of the terminal device, and both are larger than the maximum baseband bandwidth of the terminal device.
  • the size of the first bandwidth and the size of the second bandwidth can be greater than the maximum value of the maximum radio frequency bandwidth and the maximum baseband bandwidth of the terminal device at this time, and the bandwidth of the signal received or sent by the terminal device can be greater than the maximum value of the terminal device.
  • the radio frequency bandwidth may also be greater than the maximum baseband bandwidth of the terminal device, that is, the bandwidth of the signal received or sent by the terminal device may be greater than the maximum value of the maximum radio frequency bandwidth of the terminal device and the maximum baseband bandwidth of the terminal device.
  • the size of the first bandwidth and the size of the second bandwidth can both be greater than 20 MHz, and both can be greater than 5 MHz, that is, the first bandwidth Both the second bandwidth and the second bandwidth may be greater than 20 MHz (the maximum value of 20 MHz and 5 MHz), and the bandwidth of the signal received or sent by the terminal device may be greater than 20 MHz.
  • the processing delay of the first channel/first signal of the terminal device is greater than the processing delay of the first channel/first signal of the second terminal device, wherein the first channel/first signal of the terminal device
  • the bandwidth is greater than the maximum baseband bandwidth of the terminal device, and the bandwidth of the first channel/first signal of the terminal device is greater than the maximum radio frequency bandwidth of the terminal device, and the bandwidth of the first channel/first signal of the second terminal device is less than or It is equal to the maximum baseband bandwidth of the second terminal device, and the bandwidth of the first channel/first signal of the second terminal device is less than or equal to the maximum radio frequency bandwidth of the second terminal device.
  • the first channel may be one of all channels of the terminal device or the second terminal device
  • the first signal may be a reference signal
  • the first signal may be one of all the reference signals of the terminal device or the second terminal device
  • the embodiment of the present application does not limit the specific form of the first channel/first signal.
  • the first channel may be PBCH.
  • the maximum baseband bandwidth of the terminal device is smaller than the maximum baseband bandwidth of the second terminal device, or the maximum radio frequency bandwidth of the terminal device is smaller than the maximum radio frequency bandwidth of the second terminal device.
  • the terminal device cannot use the bandwidth of the first channel/first signal
  • the transmitted signal is received in its entirety at the same instant in which only a portion of that signal can be received.
  • the terminal device can receive part of the signal on different frequency domain resources at different times, and combine the received part of the signal to complete the complete reception of the signal. In this case , the processing delay of the first channel/first signal of the terminal device will increase.
  • the following describes an exemplary description that the processing delay of the first channel/first signal of the terminal device in mode #4 is greater than the processing delay of the first channel/first signal of the second terminal device.
  • the maximum radio frequency bandwidth of the terminal device is 5 MHz
  • the maximum baseband bandwidth of the terminal device is 5 MHz
  • the maximum radio frequency bandwidth of the second terminal device is 20 MHz
  • the maximum baseband bandwidth of the second terminal device is 20 MHz.
  • the bandwidth of the PBCH is 7.2 MHz.
  • the bandwidth (7.2MHz) of PBCH is less than the maximum radio frequency bandwidth (20MHz) of the second terminal equipment, and now the second terminal equipment can completely receive the signal transmitted on the PBCH; the bandwidth of PBCH (7.2 MHz) is also smaller than the maximum baseband bandwidth (20MHz) of the second terminal device, at this time the baseband part of the second terminal device can complete the processing of the signal.
  • the bandwidth of PBCH (7.2MHz) is greater than the maximum radio frequency bandwidth (5MHz) of the terminal equipment, and the bandwidth of PBCH (7.2MHz) is also greater than the maximum baseband bandwidth (5MHz) of the terminal equipment, so the terminal equipment cannot use
  • a signal transmitted on the PBCH is fully received at the same time, while only a part of the signal can be received at that time.
  • the terminal device can combine and process the partial signals received multiple times, so as to complete the complete reception of the signal. Compared with the time delay when the second terminal device processes the signal, at this time the terminal device needs to increase the processing time delay to complete the processing of the signal.
  • the time delay when the terminal device processes the signal is T6+delta6, where delta6 is the time delay when the terminal device processes the signal compared to the time delay when the second terminal device processes The added time to the delay of the signal.
  • the processing delay of the first channel/first signal of the terminal device is increased compared to the processing delay of the first channel/first signal of the second terminal device
  • the time can be different depending on the processing capability of the second terminal device.
  • the second bandwidth is based on the terminal device configuration; or, the second bandwidth is based on the signal configuration received or sent by the terminal device.
  • the second bandwidth is based on the terminal device configuration; or, the second bandwidth is based on the signal configuration received or sent by the terminal device.
  • first bandwidth and the second bandwidth may be configured, or the first bandwidth and the second bandwidth may be configured separately, which is not limited in this embodiment of the present application.
  • the bandwidth of the frequency domain resources used by the terminal device to transmit signals can be It may be larger than the maximum radio frequency bandwidth of the terminal device, and may also be larger than the maximum baseband bandwidth of the terminal device.
  • the terminal device can directly multiplex the existing signal to communicate with the network device, for example, the terminal device multiplexes the existing synchronization signal/PBCH block (SSB), system information block (system information block, SIB) communicates with network devices, thereby reducing resource overhead.
  • SSB synchronization signal/PBCH block
  • SIB system information block
  • the size relationship between the first bandwidth and the second bandwidth and the radio frequency bandwidth of the terminal device and the baseband bandwidth of the terminal device may also include other methods besides the above four methods, for example, the size of the first bandwidth is larger than that of the terminal device
  • the maximum radio frequency bandwidth of the device is greater than the maximum baseband bandwidth of the terminal device
  • the size of the second bandwidth is less than or equal to the maximum radio frequency bandwidth of the terminal device and less than or equal to the maximum baseband bandwidth of the terminal device.
  • the embodiment of the present application does not limit this.
  • frequency domain resource allocation of the physical downlink shared channel PDSCH/physical uplink shared channel PUSCH is determined according to the first bandwidth and the second bandwidth.
  • frequency domain resource allocation for PDSCH/PUSCH, which are type 0 frequency domain resource allocation and type 1 frequency domain resource allocation.
  • this type of frequency domain resource allocation is discontinuous frequency domain resource allocation, and the frequency domain resource allocation method is: divide the resource blocks in the BWP into N RBG resource block groups, Each resource block group contains Y consecutive resource blocks, and N RBG resource block groups are in one-to-one correspondence with N RBG bits.
  • the terminal device sets the bit corresponding to the resource block group to "1", otherwise it sets it to "0". Therefore, the type 0 type can indicate the resource block group allocated to the PDSCH/PUSCH in the BWP through a bitmap or a bitmap.
  • the number of resource block groups included in the BWP is determined according to the first bandwidth and the second bandwidth, wherein the number of resource block groups included in the BWP is determined according to the first bandwidth A bandwidth determination, the size of the resource block group is determined according to the second bandwidth.
  • the number of resource block groups contained in the BWP (that is, the length of the resource indication field) satisfies the formula (1):
  • N RBG is the number of resource block groups
  • mod is a modulo operation
  • P is the size of the resource block group.
  • the size of the other resource block groups is equal to P.
  • the value of P can be determined according to Table 1.
  • the first column provides the range of the size of the second bandwidth
  • the second column (the size of the resource block group 1)
  • the third column (the size of the resource block group 2) can be the network equipment through the RRC signal
  • the size of the corresponding resource block group can be one of the second column and the third column.
  • the size of the resource block group at this time may be 8 corresponding to the size 1 of the resource block group, or 16 corresponding to the size 2 of the resource block group.
  • the bit length or number of the frequency domain resource allocation indication field is N RBG determined through the above process.
  • this type of frequency domain resource allocation is continuous frequency domain resource allocation, and its resource indication field includes a resource indication value (resource indication value, RIV), which is related to a starting resource block It is related to the length of a contiguously allocated resource block.
  • RIV resource indication value
  • the RIV is determined according to the first bandwidth and the second bandwidth.
  • the RIV can be determined according to the following formula:
  • L RBs is the length of continuously allocated resource blocks
  • RB start is the starting resource block
  • the bit length or number of the frequency domain resource allocation indication field satisfies the formula (6):
  • the highest bit of the frequency domain resource allocation indication field is used to indicate whether the resource allocation is type 0 resource allocation or type 1 resource allocation. For example, when the highest bit indicates type 0 resource allocation, the lower N RBG bits provide frequency domain resource allocation; for another example, when the highest bit indicates type 1 resource allocation, the lower bits provide frequency domain resource allocation.
  • the frequency domain resource allocation of PDSCH/PUSCH can be determined according to the first bandwidth and the second bandwidth at the same time, so that while ensuring the frequency diversity gain or frequency selective scheduling gain, the resource block group granularity can be reduced, and the frequency domain can be improved. resource utilization, and improve the detection performance of PDSCH/PUSCH frequency domain resources.
  • Figure 3 mainly introduces the method for determining the frequency domain position of the second bandwidth when the configuration information of the BWP does not include the frequency domain position of the second bandwidth
  • Figure 4 mainly introduces the method for determining the frequency domain position of the second bandwidth when the configuration information of the BWP includes a frequency domain position of the second bandwidth , the method for determining the frequency domain position of the second bandwidth
  • FIG. 5 mainly introduces the method for determining the frequency domain position of the second bandwidth when the configuration information of the BWP includes multiple frequency domain positions of the second bandwidth.
  • step 210 ie mode #1, mode #2, mode #3 and mode #4. Any one, so that the terminal device can dynamically send or receive signals on the frequency domain resources of the first bandwidth, and when the size of the first bandwidth is less than or equal to the maximum radio frequency bandwidth of the terminal device, the terminal device can transmit or receive signals in the frequency domain resources of the second bandwidth Switching at the domain position does not need to readjust the radio frequency, thereby reducing the handover delay of the terminal equipment, and at the same time, the terminal equipment can also obtain greater frequency diversity gain.
  • FIG. 3 shows a schematic diagram of a frequency domain location 300 provided by an embodiment of the present application.
  • the configuration information of the BWP includes at least the frequency domain position of the first bandwidth, wherein the frequency domain position of the second bandwidth is determined according to the frequency domain position of the first bandwidth.
  • the frequency domain position of the second bandwidth is determined according to an offset and the frequency domain position of the first bandwidth, where the offset is the frequency domain position of the second bandwidth relative to the frequency domain position of the first bandwidth offset.
  • the offset may be indicated by the network device through signaling.
  • the offset may be indicated by the network device through DCI.
  • the offset may be indicated by the network device through frequency domain resources in the DCI indication field (frequency domain resource allocation, FDRA) indication; for another example, the offset may be indicated by the network device through RRC, and for another example, the offset may be indicated by the network device through the multimedia access control layer control unit (media access control control element, MAC CE) instruction.
  • the offset may also be a capability value of the terminal device, or may be predefined by a protocol, which is not limited in this embodiment of the present application.
  • the second bandwidth is located within the frequency domain resource range determined by the first bandwidth and the frequency domain position of the first bandwidth.
  • a frequency domain resource may be determined based on the second bandwidth and the frequency domain position of the second bandwidth, and the frequency domain resource may be a sub-BWP in the BWP.
  • the terminal device can dynamically send or receive signals on the frequency domain resources of the first bandwidth.
  • the positions are different, there will be a switching process for the frequency domain position of the second bandwidth.
  • the frequency domain position of the second bandwidth is determined according to the frequency domain position of the first bandwidth, and when the size of the first bandwidth is less than or equal to the maximum radio frequency bandwidth of the terminal device, the frequency domain position of the terminal device in the second bandwidth
  • the radio frequency can be switched without readjusting the radio frequency, thereby reducing the handover delay of the terminal equipment, and at the same time, the terminal equipment can also obtain greater frequency diversity gain.
  • FIG. 4 shows a schematic diagram of another frequency domain position 400 provided by the embodiment of the present application.
  • the configuration information of the BWP includes at least the frequency domain position of the first bandwidth, wherein the frequency domain position of the second bandwidth is determined according to the frequency domain position of the first bandwidth.
  • the frequency domain position of the second bandwidth is determined according to an offset and the frequency domain position of the first bandwidth, where the offset is the frequency domain position of the second bandwidth relative to the frequency domain position of the first bandwidth offset.
  • the configuration information of the BWP further includes an offset of the frequency domain position of the second bandwidth relative to the frequency domain position of the first bandwidth.
  • the second bandwidth is located within the frequency domain resource range determined by the first bandwidth and the frequency domain position of the first bandwidth.
  • a frequency domain resource may be determined based on the second bandwidth and the frequency domain position of the second bandwidth, and the frequency domain resource may be a sub-BWP in the BWP.
  • the terminal device can dynamically send or receive signals on the frequency domain resources of the first bandwidth.
  • the frequency domain positions of the second bandwidth determined by the configuration information of multiple BWPs are different, the frequency There will be a switching process for the domain location.
  • the frequency domain position of the second bandwidth is determined according to the frequency domain position of the first bandwidth, and when the size of the first bandwidth is less than or equal to the maximum radio frequency bandwidth of the terminal device, the frequency domain position of the terminal device in the second bandwidth
  • the radio frequency can be switched without readjusting the radio frequency, thereby reducing the handover delay of the terminal equipment, and at the same time, the terminal equipment can also obtain greater frequency diversity gain.
  • FIG. 5 shows a schematic diagram of another frequency domain position 500 provided by the embodiment of the present application.
  • the configuration information of the BWP includes at least the frequency domain position of the first bandwidth, wherein the frequency domain position of the second bandwidth is determined according to the frequency domain position of the first bandwidth.
  • the frequency domain position of the second bandwidth is determined according to an offset and the frequency domain position of the first bandwidth, where the offset is the frequency domain position of the second bandwidth relative to the frequency domain position of the first bandwidth offset.
  • the configuration information of the BWP further includes an offset of the frequency domain position of the second bandwidth relative to the frequency domain position of the first bandwidth.
  • the second bandwidth is located within the frequency domain resource range determined by the first bandwidth and the frequency domain position of the first bandwidth.
  • the frequency domain positions of the second bandwidth include multiple frequency domain positions.
  • the second bandwidth and the M frequency domain resources determined by the N frequency domain positions of the second bandwidth are M sub-BWPs in the BWP, where N and M are positive integers greater than 1.
  • N may be greater than M, may be equal to M, or may be smaller than M, and the embodiment of the present application does not limit the sizes of N and M.
  • N is equal to M, it is a preferred manner to determine N frequency domain resources according to the second bandwidth and N frequency domain positions of the second bandwidth.
  • multiple frequency domain resources can be determined based on the second bandwidth and the frequency domain positions of the second bandwidth, and the multiple frequency domain resources can be defined as the Multiple child BWPs.
  • the multiple frequency domain resources there are five frequency domain positions in the second bandwidth, at this time, five frequency domain resources may be determined based on the second bandwidth and the frequency domain positions of the second bandwidth, and each frequency domain resource may be a sub-BWP in the BWP;
  • there are five frequency domain positions in the second bandwidth At this time, it can be determined based on the second bandwidth and the frequency domain positions of the second bandwidth that it is greater than or less than five frequency domain resources, and each frequency domain resource can be one of the BWP Child BWP.
  • a frequency domain resource determined by the first bandwidth and the frequency domain position of the first bandwidth can be recorded as the first BWP
  • multiple frequency domain resources determined by the second bandwidth and the frequency domain position of the second bandwidth can be recorded as for the second BWP.
  • the first BWP may be regarded as the parent BWP of the multiple second BWPs
  • the multiple second BWPs may be regarded as the child BWPs of the first BWP.
  • the second BWPs may be respectively recorded as BWP#X_0, BWP#X_1, . . . , BWP#X_Z, where Z is the number of the second BWP.
  • Mode #A Step 1, the network device configures the number M of sub-BWPs for the terminal device through signaling (such as RRC, another example, MAC CE, and another example DCI); Step 2, the terminal device determines that the bandwidth of each sub-BWP is the bandwidth of the BWP The bandwidth is divided by M; step 3, when the bandwidth of each sub-BWP determined by the terminal device is not a positive integer, the bandwidth of the last sub-BWP is: BWP bandwidth-(M-1)*floor(BWP bandwidth divided by M) , where floor is the rounding down operation.
  • signaling such as RRC, another example, MAC CE, and another example DCI
  • Step 2 the terminal device determines that the bandwidth of each sub-BWP is the bandwidth of the BWP The bandwidth is divided by M; step 3, when the bandwidth of each sub-BWP determined by the terminal device is not a positive integer, the bandwidth of the last sub-BWP is: BWP bandwidth-(M-1)*floor(BWP bandwidth divided by
  • Mode #B The network device configures the bandwidth of each sub-BWP for the terminal device through signaling (such as RRC, or MAC CE).
  • signaling such as RRC, or MAC CE.
  • Mode #C The protocol pre-defines the sub-BWP.
  • the method for determining the number M of sub-BWPs and the bandwidth of each sub-BWP is similar to that of mode #A, and will not be repeated here.
  • the terminal device indicates through the DCI that one of the multiple sub-BWPs is the active BWP. Based on this, the terminal device can communicate with the network device according to the activated sub-BWP. For example, the terminal device activates one of the sub-BWPs by multiplexing the indication field in the existing DCI (such as the BWP indication field, or the FDRA indication field) or introducing a new indication field, so as to establish a communication connection with the network device.
  • the indication field in the existing DCI such as the BWP indication field, or the FDRA indication field
  • the terminal device can dynamically send or receive signals on the frequency domain resource of the first BWP.
  • Configuring multiple second BWPs in the first BWP may make frequency domain resource allocation in the multiple second BWPs refer to the frequency domain resource allocation of the first BWP.
  • the terminal device may not readjust the radio frequency when switching at the frequency domain position of the second BWP, thereby reducing the handover delay of the terminal device and improving the terminal device
  • the transmission efficiency is high, and at the same time, it can also enable the terminal equipment to obtain greater frequency diversity gain.
  • the plurality of second BWPs may share all or part of the same RRC configuration parameters (such as physical channel configuration parameters, and signal configuration parameters), thereby reducing the memory overhead of the terminal device, thereby reducing the complexity and complexity of the terminal device. cost.
  • the BWP in the configuration information of the BWP sent by the network device to the terminal device, the BWP includes at least the first bandwidth and the second bandwidth, but this embodiment of the present application is not limited thereto.
  • the BWP configuration information sent by the network device to the terminal device the BWP may include the first bandwidth
  • the terminal device can learn other ways of the maximum transmission bandwidth of the frequency domain resources used by the terminal device to receive or send signals. This application Examples are also included.
  • the methods and operations implemented by the terminal device or the network device may also be implemented by components (such as chips or circuits) of the terminal device or the network device.
  • the embodiments of the present application further provide corresponding devices, and the device includes corresponding modules for executing the foregoing method embodiments.
  • the module can be software, or hardware, or a combination of software and hardware. It can be understood that the technical features described in the above method embodiments are also applicable to the following device embodiments.
  • the methods provided in the embodiments of the present application are introduced from the perspectives of the network device, the terminal device, and the interaction between the network device and the terminal device.
  • the network device and the terminal device may include a hardware structure and/or a software module, and realize the above-mentioned functions in the form of a hardware structure, a software module, or a hardware structure plus a software module . Whether one of the above-mentioned functions is executed in the form of a hardware structure, a software module, or a hardware structure plus a software module depends on the specific application and design constraints of the technical solution.
  • FIG. 6 and FIG. 7 are schematic structural diagrams of possible communication devices provided by the embodiments of the present application. These communication apparatuses can realize the functions of the terminal equipment or the network equipment in the above method embodiments, and therefore can also realize the beneficial effects of the above method embodiments.
  • the communication device may be the terminal equipment 110-160 as shown in Figure 1, or the network equipment 170 as shown in Figure 1, or a module (such as chips).
  • the communication device 600 includes a transceiver module 601 , and the transceiver module 601 can be used to implement a corresponding communication function.
  • the transceiver module 601 may also be called a communication interface or a communication unit.
  • the apparatus 600 may further include a processing module 602, and the processing module 602 may be configured to implement corresponding processing functions.
  • the device 600 further includes a storage module, which can be used to store instructions and/or data, and the processing module 602 can read the instructions and/or data in the storage module, so that the device implements the actions of terminal devices or network devices.
  • a storage module which can be used to store instructions and/or data
  • the processing module 602 can read the instructions and/or data in the storage module, so that the device implements the actions of terminal devices or network devices.
  • the device 600 can be used to execute the actions performed by the terminal device or network device in the above method embodiments.
  • the device 600 can be a terminal device or a component of a terminal device, or a network device or a component of a network device.
  • the transceiving module 601 is used to perform operations related to the sending and receiving of the terminal device or network device in the method embodiments above
  • the processing module 602 is used to perform operations related to the processing of the terminal device or network device in the method embodiments above.
  • the apparatus 600 is configured to perform the actions performed by the terminal device in the above method embodiments.
  • the transceiver module 601 is configured to receive configuration information from a bandwidth part BWP of a network device, where the BWP includes a first bandwidth and a second bandwidth, the first bandwidth is determined according to the radio frequency bandwidth of the terminal device, and the first bandwidth is determined according to the radio frequency bandwidth of the terminal device.
  • the second bandwidth is determined according to the baseband bandwidth of the terminal device; the processing module 602 is configured to communicate with the network device through the BWP.
  • the first bandwidth is used to indicate the maximum range of frequency domain resources used by the terminal device to receive or send signals; the second bandwidth is used to indicate the maximum transmission bandwidth of frequency domain resources used by the terminal device to receive or send signals .
  • the size of the first bandwidth is less than or equal to the maximum radio frequency bandwidth of the terminal device, and the size of the second bandwidth is less than or equal to the maximum baseband bandwidth of the terminal device; or, the size of the first bandwidth and the size of the second bandwidth
  • the sizes are both less than or equal to the maximum radio frequency bandwidth of the terminal equipment, and both are greater than the maximum baseband bandwidth of the terminal equipment; or, the size of the first bandwidth and the size of the second bandwidth are both less than or equal to the maximum radio frequency bandwidth of the terminal equipment, and both Less than or equal to the maximum baseband bandwidth of the terminal device; or, the size of the first bandwidth and the size of the second bandwidth are both greater than the maximum radio frequency bandwidth of the terminal device, and both are greater than the maximum baseband bandwidth of the terminal device.
  • the configuration information of the BWP includes at least the frequency domain position of the first bandwidth, wherein the frequency domain position of the second bandwidth is determined according to the frequency domain position of the first bandwidth.
  • the frequency domain position of the second bandwidth is determined according to the frequency domain position of the first bandwidth, including: the frequency domain position of the second bandwidth is determined according to an offset and the frequency domain position of the first bandwidth, wherein, The offset is an offset of the frequency domain position of the second bandwidth relative to the frequency domain position of the first bandwidth.
  • the second bandwidth and the M frequency domain resources determined by the N frequency domain positions of the second bandwidth are M sub-BWPs in the BWP, where N and M are positive integers.
  • the method further includes: a processing module 602, configured to determine frequency domain resource allocation of the physical downlink shared channel PDSCH/physical uplink shared channel PUSCH according to the first bandwidth and the second bandwidth.
  • a processing module 602 configured to determine frequency domain resource allocation of the physical downlink shared channel PDSCH/physical uplink shared channel PUSCH according to the first bandwidth and the second bandwidth.
  • the processing module 602 is configured to determine the number of resource block groups included in the BWP according to the first bandwidth and the second bandwidth, wherein the BWP includes The number of resource blocks is determined according to the first bandwidth, and the size of the resource block group is determined according to the second bandwidth.
  • the processing module 602 is configured to make the processing delay of the first channel/first signal of the terminal device greater than the processing delay of the first channel/first signal of the second terminal device, where the first channel/signal of the terminal device The bandwidth of the channel/first signal is greater than the maximum baseband bandwidth of the terminal device, and the bandwidth of the first channel/first signal of the terminal device is less than or equal to the maximum radio frequency bandwidth of the terminal device, the first channel/first signal of the second terminal device The bandwidth of the signal is less than or equal to the maximum baseband bandwidth of the second terminal device, and the bandwidth of the first channel/first signal of the second terminal device is less than or equal to the maximum radio frequency bandwidth of the second terminal device.
  • the apparatus 600 can implement the steps or processes corresponding to the execution of the terminal device in the method embodiment according to the embodiment of the present application, and the apparatus 600 can include a method for executing the execution of the terminal device in any one of the embodiments shown in FIG. 2 to FIG. 5 . method of the module.
  • the apparatus 600 is configured to perform the actions performed by the network device in each method embodiment above.
  • the transceiver module 601 is configured to send configuration information of a bandwidth part BWP to the terminal device, where the BWP includes a first bandwidth and a second bandwidth, the first bandwidth is determined according to the radio frequency bandwidth of the terminal device, and the first bandwidth is determined according to the radio frequency bandwidth of the terminal device.
  • the second bandwidth is determined according to the baseband bandwidth of the terminal device; the processing module 602 is configured to communicate with the terminal device through the BWP.
  • the first bandwidth is used to indicate the maximum range of frequency domain resources used by the terminal device to receive or send signals
  • the second bandwidth is used to indicate the maximum range of frequency domain resources used by the terminal device to receive or send signals transmission bandwidth.
  • the size of the first bandwidth is less than or equal to the maximum radio frequency bandwidth of the terminal device, and the size of the second bandwidth is less than or equal to the maximum baseband bandwidth of the terminal device; or, the size of the first bandwidth and the second The size of the bandwidth is less than or equal to the maximum radio frequency bandwidth of the terminal equipment, and both are greater than the maximum baseband bandwidth of the terminal equipment; or, the size of the first bandwidth and the size of the second bandwidth are both less than or equal to the maximum of the terminal equipment RF bandwidth, and both are less than or equal to the maximum baseband bandwidth of the terminal device; or, the size of the first bandwidth and the size of the second bandwidth are both larger than the maximum radio frequency bandwidth of the terminal device, and both are larger than the maximum baseband of the terminal device bandwidth.
  • the configuration information of the BWP includes at least the frequency domain position of the first bandwidth, wherein the frequency domain position of the second bandwidth is determined according to the frequency domain position of the first bandwidth.
  • the frequency domain position of the second bandwidth is determined according to the frequency domain position of the first bandwidth, including: the frequency domain position of the second bandwidth is determined according to an offset and the frequency domain position of the first bandwidth, wherein, The offset is an offset of the frequency domain position of the second bandwidth relative to the frequency domain position of the first bandwidth.
  • the second bandwidth and the M frequency domain resources determined by the N frequency domain positions of the second bandwidth are M sub-BWPs in the BWP, where N and M are positive integers.
  • the method further includes: determining frequency domain resource allocation of the physical downlink shared channel PDSCH/physical uplink shared channel PUSCH according to the first bandwidth and the second bandwidth.
  • the number of resource block groups included in the BWP is determined according to the first bandwidth and the second bandwidth, wherein the number of resource block groups included in the BWP is Determined according to the first bandwidth, the size of the resource block group is determined according to the second bandwidth.
  • the processing delay of the first channel/first signal of the terminal device is greater than the processing delay of the first channel/first signal of the second terminal device, wherein the first channel/first signal of the terminal device
  • the bandwidth of the terminal device is greater than the maximum baseband bandwidth, and the bandwidth of the first channel/first signal of the terminal device is less than or equal to the maximum radio frequency bandwidth of the terminal device, and the bandwidth of the first channel/first signal of the second terminal device
  • the bandwidth is less than or equal to the maximum baseband bandwidth of the second terminal device, and the bandwidth of the first channel/first signal of the second terminal device is less than or equal to the maximum radio frequency bandwidth of the second terminal device.
  • the apparatus 600 can implement the steps or processes corresponding to the execution of the network equipment in the method embodiment according to the embodiment of the present application. method of the module.
  • the apparatus 600 here is embodied in the form of functional modules.
  • the term "module” here may refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor (such as a shared processor, a dedicated processor, or a group processor, etc.) and memory, incorporated logic, and/or other suitable components to support the described functionality.
  • ASIC application specific integrated circuit
  • the apparatus 600 may specifically be a terminal device or a network device in the above-mentioned embodiments, and may be used to execute each process corresponding to the terminal device or the network device in the above-mentioned method embodiments. And/or steps, in order to avoid repetition, no more details are given here.
  • the apparatus 600 in each of the foregoing solutions has the function of implementing the corresponding steps performed by the terminal device or the network device in the foregoing method.
  • the functions described above may be implemented by hardware, or may be implemented by executing corresponding software on the hardware.
  • the hardware or software includes one or more modules corresponding to the above-mentioned functions; for example, the transceiver module can be replaced by a transceiver (for example, the sending module in the transceiver module can be replaced by a transmitter, and the receiving module in the transceiver module can be replaced by a receiver computer), and other units, such as processing modules, can be replaced by processors to respectively perform the sending and receiving operations and related processing operations in each method embodiment.
  • transceiver module 601 may also be a transceiver circuit (for example, may include a receiving circuit and a sending circuit), and the processing module may be a processing circuit.
  • the apparatus in FIG. 6 may be the device in the foregoing embodiments, or may be a chip or a chip system, such as a system on chip (system on chip, SoC).
  • the transceiver module may be an input-output circuit or a communication interface;
  • the processing module is a processor or a microprocessor or an integrated circuit integrated on the chip. It is not limited here.
  • a communication device 700 includes a processor 710 and an interface circuit 720 .
  • the processor 710 and the interface circuit 720 are coupled to each other.
  • the interface circuit 720 may be a transceiver or an input-output interface.
  • the communication device 700 may further include a memory 730 for storing instructions executed by the processor 710, or storing input data required by the processor 710 to execute the instructions, or storing data generated by the processor 710 after executing the instructions.
  • the processor 710 is used to execute the functions of the above-mentioned processing module 602
  • the interface circuit 720 is used to execute the functions of the above-mentioned transceiver module 601 .
  • the terminal device chip implements the functions of the terminal device in the above method embodiment.
  • the terminal device chip receives information from other modules in the terminal device (such as radio frequency modules or antennas), and the information is sent to the terminal device by the network device; or, the terminal device chip sends information to other modules in the terminal device (such as radio frequency modules or antenna) to send information, which is sent by the terminal device to the network device.
  • the network equipment chip implements the functions of the network equipment in the above method embodiments.
  • the network device chip receives information from other modules in the network device (such as radio frequency modules or antennas), and the information is sent to the network device by the terminal device; or, the network device chip sends information to other modules in the network device (such as radio frequency modules or antenna) to send information, which is sent by the network device to the terminal device.
  • processor in the embodiments of the present application may be a central processing unit (central processing unit, CPU), and may also be other general processors, digital signal processors (digital signal processor, DSP), application specific integrated circuits (application specific integrated circuit, ASIC), field programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof.
  • CPU central processing unit
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • a general-purpose processor can be a microprocessor, or any conventional processor.
  • the method steps in the embodiments of the present application may be implemented by means of hardware, or may be implemented by means of a processor executing software instructions.
  • the software instructions can be composed of corresponding software modules, and the software modules can be stored in random access memory (random access memory, RAM), flash memory, read-only memory (Read-Only Memory, ROM), programmable read-only memory (programmable ROM) , PROM), erasable programmable read-only memory (erasable PROM, EPROM), electrically erasable programmable read-only memory (electrically EPROM, EEPROM), register, hard disk, mobile hard disk, CD-ROM or known in the art any other form of storage medium.
  • An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium.
  • the storage medium may also be a component of the processor.
  • the processor and storage medium can be located in the ASIC.
  • the ASIC may be located in the access network device or the terminal device.
  • the processor and the storage medium may also exist in the access network device or the terminal device as discrete components.
  • all or part of them may be implemented by software, hardware, firmware or any combination thereof.
  • software When implemented using software, it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product comprises one or more computer programs or instructions. When the computer program or instructions are loaded and executed on the computer, the processes or functions described in the embodiments of the present application are executed in whole or in part.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable devices.
  • the computer program or instructions may be stored in or transmitted via a computer-readable storage medium.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device such as a server integrating one or more available media.
  • the available medium may be a magnetic medium, such as a floppy disk, a hard disk, or a magnetic tape; it may also be an optical medium, such as a DVD; it may also be a semiconductor medium, such as a solid state disk (solid state disk, SSD).
  • a magnetic medium such as a floppy disk, a hard disk, or a magnetic tape
  • an optical medium such as a DVD
  • it may also be a semiconductor medium such as a solid state disk (solid state disk, SSD).

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Abstract

本申请实施例提供了一种通信方法和装置。该方法包括：网络设备向终端设备发送BWP的配置信息，该BWP可以至少包括第一带宽和第二带宽，其中，该第一带宽根据该终端设备的射频带宽确定，该第二带宽根据该终端设备的基带带宽确定；终端设备接收来自网络设备的BWP的配置信息；终端设备通过BWP与网络设备通信。通过该申请，网络设备为终端设备配置的BWP可以同时兼顾射频带宽和基带带宽，使得该BWP不仅可以适用于射频带宽和基带带宽相同的终端设备，也可以适用于射频带宽和基带带宽不相同的终端设备。因此，通过上述方案，能够将多种带宽能力的终端设备接入到网络设备中，进而与网络设备之间进行通信。

Description

一种通信方法和装置
本申请要求于2022年01月30日提交中国专利局、申请号为202210114486.6、申请名称为“一种通信方法和装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及通信领域，尤其涉及一种通信方法和装置。
背景技术
第五代(the 5th generation，5G)移动通信技术新无线(new radio，NR)，是基于正交频分复用(orthogonal frequency division multiplexing，OFDM)的全新空口设计的全球性5G标准，也是下一代非常重要的蜂窝移动技术基础。目前NR中引入了带宽部分(bandwidth part，BWP)的概念。根据NR协议，网络设备可以为终端设备配置BWP。当BWP的带宽的大小小于或等于终端设备的最大带宽时，终端设备可以与网络设备之间进行通信。
终端设备的带宽包括射频带宽和基带带宽。对于终端设备的射频带宽和基带带宽相同的场景，网络设备为终端设备配置BWP的带宽时，可以参考射频带宽和基带带宽中的其中之一，例如，BWP的带宽的大小小于或等于终端设备的最大射频带宽时，也不会大于终端设备的最大基带带宽。然而，随着技术发展，出现了终端设备的射频带宽和基带带宽不同的场景，此时关于BWP的带宽配置是参考射频带宽还是参考基带带宽是不明确的。因此，如何配置BWP的带宽使得其能够适用于不同带宽能力的终端设备是亟需解决的问题。
发明内容
本申请提供一种通信方法和装置，从而网络设备可以为射频带宽和基带带宽不相同的终端设备配置BWP。
第一方面，本申请提供了一种通信方法，该方法的执行主体可以是终端设备，也可以是应用于终端设备中的芯片。下面以执行主体是终端设备为例进行描述。
该方法可以包括：终端设备接收来自网络设备的BWP的配置信息，该BWP至少包括第一带宽和第二带宽，该第一带宽根据该终端设备的射频带宽确定，该第二带宽根据该终端设备的基带带宽确定。该终端设备通过该BWP与该网络设备通信。
基于上述技术方案，网络设备为终端设备配置的BWP的带宽可以包括两部分，如分别记为第一带宽和第二带宽，并且第一带宽根据终端设备的射频带宽确定，第二带宽根据终端设备的基带带宽确定，即第一带宽可以基于射频带宽配置，第二带宽可以基于基带带宽配置。通过该方式，网络设备为终端设备配置的BWP可以同时兼顾射频带宽和基带带宽，使得该BWP不仅可以适用于射频带宽和基带带宽相同的终端设备，也可以适用于射 频带宽和基带带宽不相同的终端设备。因此，通过上述方案，能够将多种带宽能力的终端设备接入到网络设备中，进而与网络设备之间进行通信。
在一种可能的设计中，该第一带宽用于指示该终端设备接收或者发送信号所使用的频域资源的最大范围；该第二带宽用于指示该终端设备接收或者发送信号所使用的频域资源的最大传输带宽。
在一种可能的设计中，该第一带宽的大小小于或等于该终端设备的最大射频带宽，该第二带宽的大小小于或等于该终端设备的最大基带带宽；或者，该第一带宽的大小和该第二带宽的大小均小于或等于该终端设备的最大射频带宽、且均大于该终端设备的最大基带带宽；或者，该第一带宽的大小和该第二带宽的大小均小于或等于该终端设备的最大射频带宽、且均小于或等于该终端设备的最大基带带宽；或者，该第一带宽的大小和该第二带宽的大小均大于该终端设备的最大射频带宽、且均大于该终端设备的最大基带带宽。
基于上述技术方案，第一带宽与第二带宽和终端设备的最大射频带宽与最大基带带宽之间的大小关系可以有以下四种情况：
第一种情况，当第一带宽的大小小于或等于终端设备的最大射频带宽、第二带宽的大小小于或等于终端设备的最大基带带宽时，终端设备传输信号所使用的频域资源的带宽的大小小于或等于终端设备的最大基带带宽，此时终端设备的基带不需要处理超过其带宽能力的数据块，因而不会增加处理时延，也有利于降低信号的整体传输时延。
第二种情况，当第一带宽的大小和第二带宽的大小均小于或等于终端设备的最大射频带宽、且均大于终端设备的最大基带带宽时，终端设备传输信号所使用的频域资源的带宽的大小小于或等于终端设备的最大射频带宽、且可以大于终端设备的最大基带带宽。在该情况下，终端设备的射频可以接收全部信号，不会造成数据的丢失。
第三种情况，当第一带宽的大小和第二带宽的大小均小于或等于终端设备的最大射频带宽、且均小于或等于终端设备的最大基带带宽时，终端设备传输信号所使用的频域资源的带宽的大小小于或等于终端设备的最大射频带宽，且小于或等于终端设备的最大基带带宽。在该情况下，终端设备可以直接复用现有的BWP机制，对NR协议改动也较小，性能损失也会降低。
第四种情况，当第一带宽的大小和第二带宽的大小均大于终端设备的最大射频带宽，且均大于终端设备的最大基带带宽时，终端设备传输信号所使用的频域资源的带宽的大小可以大于终端设备的最大射频带宽，也可以大于终端设备的最大基带带宽。在该情况下，终端设备可以直接复用现有的信号与网络设备通信，例如，终端设备复用现有的同步广播块(synchronization signal block，SSB)与网络设备通信，从而可以降低资源的开销。
在一种可能的设计中，该BWP的配置信息至少包括该第一带宽的频域位置，该第二带宽的频域位置可以根据该第一带宽的频域位置确定。基于上述技术方案，终端设备可以在第一带宽的频域资源上动态发送或者接收信号。考虑到第二带宽的频域位置是可以根据该第一带宽的频域位置确定的，并且当第一带宽的大小小于或等于终端设备的最大射频带宽时，终端设备在第二带宽的频域位置上进行切换可以不重新调整射频，从而降低终端设备的切换时延，同时终端设备也能够获得更大的频率分集增益。
在一种可能的设计中，该第二带宽的频域位置可以根据该第一带宽的频域位置确定，包括：该第二带宽的频域位置可以根据偏移量与该第一带宽的频域位置确定。示例性的，该偏移量可以为该第二带宽的频域位置相对于该第一带宽的频域位置的偏移量。
在一种可能的设计中，该第二带宽和该第二带宽的N个频域位置确定的M个频域资源为该BWP中的M个子BWP，其中，N、M为正整数。
在一种可能的设计中，该方法还包括：根据该第一带宽和该第二带宽确定物理下行共享信道PDSCH/物理上行共享信道PUSCH的频域资源分配。基于上述技术方案，物理下行共享信道PDSCH/物理上行共享信道PUSCH的频域资源分配可以同时根据第一带宽和第二带宽确定，从而能够在保证频率分集增益或者频率选择性调度增益的同时，降低资源块组粒度，提高频域资源利用率，并改善物理下行共享信道PDSCH/物理上行共享信道PUSCH的频域资源的检测性能。
在一种可能的设计中，对于类型为type 0的频域资源分配，可以根据该第一带宽和该第二带宽确定该BWP所包含的资源块组的个数，其中，该BWP所包含的资源块的个数根据该第一带宽确定，该资源块组的大小根据该第二带宽确定。
在一种可能的设计中，该终端设备的第一信道/第一信号的处理时延大于第二终端设备的第一信道/第一信号的处理时延，其中，该终端设备的第一信道/第一信号的带宽大于该终端设备的最大基带带宽、且该终端设备的第一信道/第一信号的带宽小于或等于该终端设备的最大射频带宽，该第二终端设备的第一信道/第一信号的带宽小于或等于该第二终端设备的最大基带带宽、且该第二终端设备的第一信道/第一信号的带宽小于或等于该第二终端设备的最大射频带宽，其中“/”代表“或”。
基于上述技术方案，在终端设备的第一信道/第一信号的带宽大于终端设备的最大基带带宽、且终端设备的第一信道/第一信号的带宽小于或等于终端设备的最大射频带宽时，该终端设备的基带可以通过增加处理时延完成对大数据块的处理。
第二方面，本申请提供一种通信方法，该方法的执行主体可以是网络设备，也可以是应用于网络设备中的芯片。下面以执行主体是网络设备为例进行描述。
该方法可以包括：网络设备可以向终端设备发送BWP的配置信息，该BWP至少包括第一带宽和第二带宽。该第一带宽根据该终端设备的射频带宽确定，该第二带宽根据该终端设备的基带带宽确定。该网络设备根据该BWP与该终端设备通信。
基于上述技术方案，网络设备为终端设备配置的BWP的带宽包括两部分，如分别记为第一带宽和第二带宽，并且第一带宽根据终端设备的射频带宽确定，第二带宽根据终端设备的基带带宽确定，即第一带宽可以基于射频带宽配置，第二带宽可以基于基带带宽配置。通过该方式，网络设备为终端设备配置的BWP可以同时兼顾射频带宽和基带带宽，使得该BWP不仅可以适用于射频带宽和基带带宽相同的终端设备，也可以适用于射频带宽和基带带宽不相同的终端设备。因此，通过上述方案，能够使得网络设备与不同带宽能力的终端设备进行通信。
在一种可能的设计中，该第一带宽用于指示该终端设备接收或者发送信号所使用的频域资源的最大范围；该第二带宽用于指示该终端设备接收或者发送信号所使用的频域资源的最大传输带宽。
在一种可能的设计中，该第一带宽的大小小于或等于该终端设备的最大射频带宽，该第二带宽的大小小于或等于该终端设备的最大基带带宽；或者，该第一带宽的大小和该第二带宽的大小均小于或等于该终端设备的最大射频带宽、且均大于该终端设备的最大基带带宽；或者，该第一带宽的大小和该第二带宽的大小均小于或等于该终端设备的最大射频带宽、且均小于或等于该终端设备的最大基带带宽；或者，该第一带宽的大小和该第二带 宽的大小均大于该终端设备的最大射频带宽、且均大于该终端设备的最大基带带宽。
在一种可能的设计中，该BWP的配置信息至少包括该第一带宽的频域位置，其中，该第二带宽的频域位置根据该第一带宽的频域位置确定。
在一种可能的设计中，该第二带宽的频域位置根据该第一带宽的频域位置确定，包括：该第二带宽的频域位置根据偏移量与该第一带宽的频域位置确定，其中，该偏移量可以为该第二带宽的频域位置相对于该第一带宽的频域位置的偏移量。
在一种可能的设计中，该第二带宽和该第二带宽的N个频域位置确定的M个频域资源为该BWP中的M个子BWP，其中，N、M为正整数。
在一种可能的设计中，该方法还包括：根据该第一带宽和该第二带宽确定物理下行共享信道PDSCH/物理上行共享信道PUSCH的频域资源分配。
在一种可能的设计中，对于类型为type 0的频域资源分配，根据该第一带宽和该第二带宽确定该BWP所包含的资源块组的个数，其中，该BWP所包含的资源块的个数根据该第一带宽确定，该资源块组的大小根据该第二带宽确定。
在一种可能的设计中，该终端设备的第一信道/第一信号的处理时延大于第二终端设备的第一信道/第一信号的处理时延，其中，该终端设备的第一信道/第一信号的带宽大于该终端设备的最大基带带宽、且该终端设备的第一信道/第一信号的带宽小于或等于该终端设备的最大射频带宽，该第二终端设备的第一信道/第一信号的带宽小于或等于该第二终端设备的最大基带带宽、且该第二终端设备的第一信道/第一信号的带宽小于或等于该第二终端设备的最大射频带宽。
第三方面，提供一种通信装置，有益效果可以参见第一方面的描述此处不再赘述。所述通信装置具有实现上述第一方面的方法实例中行为的功能。所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的模块。在一个可能的设计中，所述通信装置包括：收发模块，用于接收来自网络设备的带宽部分BWP的配置信息，该BWP至少包括第一带宽和第二带宽，该第一带宽根据该终端设备的射频带宽确定，该第二带宽根据该终端设备的基带带宽确定；处理模块，用于通过该BWP与该网络设备通信。这些模块可以执行上述第一方面方法示例中的相应功能，具体参见方法示例中的详细描述，此处不做赘述。
第四方面，提供一种通信装置，有益效果可以参见第二方面的描述此处不再赘述。所述通信装置具有实现上述第二方面的方法实例中行为的功能。所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的模块。在一个可能的设计中，所述通信装置包括：收发模块，用于向终端设备发送带宽部分BWP的配置信息，该BWP至少包括第一带宽和第二带宽，该第一带宽根据该终端设备的射频带宽确定，该第二带宽根据该终端设备的基带带宽确定；处理模块，用于通过该BWP与该终端设备通信。这些模块可以执行上述第二方面方法示例中的相应功能，具体参见方法示例中的详细描述，此处不做赘述。
第五方面，提供了一种通信装置，该通信装置可以为上述方法实施例中的终端设备，或者为设置在终端设备中的芯片。该通信装置包括通信接口以及处理器，可选的，还包括存储器。其中，该存储器用于存储计算机程序或指令，处理器与存储器、通信接口耦合，当处理器执行所述计算机程序或指令时，使通信装置执行上述方法实施例中由终端设备所执行的方法。
第六方面，提供了一种通信装置，该通信装置可以为上述方法实施例中的网络设备，或者为设置在网络设备中的芯片。该通信装置包括通信接口以及处理器，可选的，还包括存储器。其中，该存储器用于存储计算机程序或指令，处理器与存储器、通信接口耦合，当处理器执行所述计算机程序或指令时，使通信装置执行上述方法实施例中由网络设备所执行的方法。
第七方面，提供了一种计算机程序产品，所述计算机程序产品包括：计算机程序代码，当所述计算机程序代码并运行时，使得上述各方面中由终端设备执行的方法被执行。
第八方面，提供了一种计算机程序产品，所述计算机程序产品包括：计算机程序代码，当所述计算机程序代码被运行时，使得上述各方面中由网络设备执行的方法被执行。
第九方面，本申请提供了一种芯片***，该芯片***包括处理器，用于实现上述各方面的方法中终端设备的功能。在一种可能的设计中，所述芯片***还包括存储器，用于保存程序指令和/或数据。该芯片***，可以由芯片构成，也可以包括芯片和其他分立器件。
第十方面，本申请提供了一种芯片***，该芯片***包括处理器，用于实现上述各方面的方法中网络设备的功能。在一种可能的设计中，所述芯片***还包括存储器，用于保存程序指令和/或数据。该芯片***，可以由芯片构成，也可以包括芯片和其他分立器件。
第十一方面，本申请提供了一种计算机可读存储介质，该计算机可读存储介质存储有计算机程序，当该计算机程序被运行时，实现上述各方面中由终端设备执行的方法。
第十二方面，本申请提供了一种计算机可读存储介质，该计算机可读存储介质存储有计算机程序，当该计算机程序被运行时，实现上述各方面中由网络设备执行的方法。
附图说明
图1示出了适用于本申请实施例的一种通信场景的示意图。
图2示出了本申请实施例提供的一种通信方法200的示意图。
图3示出了本申请实施例提供的一种频域位置300的示意图。
图4示出了本申请实施例提供的又一种频域位置400的示意图。
图5示出了本申请实施例提供的又一种频域位置500的示意图。
图6示出了本申请实施例提供的一种通信装置600的示意性框图。
图7示出了本申请实施例提供的另一种通信装置700的示意性框图。
具体实施方式
下面将结合附图，对本申请实施例中的技术方案进行描述。
本申请实施例的技术方案可以应用于各种通信***，例如：第五代(5th generation，5G)或新无线(new radio，NR)***、长期演进(long term evolution，LTE)***、LTE频分双工(frequency division duplex，FDD)***、LTE时分双工(time division duplex，TDD)***等。本申请提供的技术方案还可以应用于未来的通信***，如第六代移动通信***。本申请提供的技术方案还可以应用于设备到设备(device to device，D2D)通信，车到万物(vehicle-to-everything，V2X)通信，机器到机器(machine to machine，M2M)通信，机器类型通信(machine type communication，MTC)，以及物联网(internet of things，IoT)通信***或者其他通信***。
本申请实施例中的终端设备可以是一种向用户提供语音/数据的设备，例如，具有无 线连接功能的手持式设备、车载设备等。目前，一些终端的举例为：手机(mobile phone)、平板电脑、笔记本电脑、掌上电脑、移动互联网设备(mobile internet device，MID)、可穿戴设备，虚拟现实(virtual reality，VR)设备、增强现实(augmented reality，AR)设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程手术(remote medical surgery)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端、蜂窝电话、无绳电话、会话启动协议(session initiation protocol，SIP)电话、无线本地环路(wireless local loop，WLL)站、个人数字助理(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、可穿戴设备，5G网络中的终端设备或者未来演进的公用陆地移动通信网络(public land mobile network，PLMN)中的终端设备等，本申请实施例对此并不限定。
作为示例而非限定，在本申请实施例中，该终端设备还可以是可穿戴设备。可穿戴设备也可以称为穿戴式智能设备，是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称，如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上，或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备，更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能，例如：智能手表或智能眼镜等，以及只专注于某一类应用功能，需要和其它设备如智能手机配合使用，如各类进行体征监测的智能手环、智能首饰等。
此外，在本申请实施例中，终端设备还可以是IoT***中的终端设备，IoT是未来信息技术发展的重要组成部分，其主要技术特点是将物品通过通信技术与网络连接，从而实现人机互连，物物互连的智能化网络。
本申请实施例中，用于实现终端设备的功能的装置可以是终端设备，也可以是能够支持终端设备实现该功能的装置，例如芯片***或芯片，该装置可以被安装在终端设备中。本申请实施例中，芯片***可以由芯片构成，也可以包括芯片和其他分立器件。
本申请实施例中的网络设备可以是用于与终端设备通信的设备，该网络设备可以是全球移动通信(global system for mobile communications，GSM)***或码分多址(code division multiple access，CDMA)中的基站(base transceiver station，BTS)，也可以是宽带码分多址(wideband code division multiple access，WCDMA)***中的基站(NodeB，NB)，还可以是LTE***中的演进型基站(evoled NodeB，eNB或eNodeB)，还可以是云无线接入网络(cloud radio access network，CRAN)场景下的无线控制器，或者该网络设备可以为中继站、接入点、车载设备、可穿戴设备以及5G网络中的网络设备或者未来演进的PLMN网络中的网络设备，5G***中的基站的一个或一组(包括多个天线面板)天线面板，或者，还可以为构成gNB或传输点的网络节点，如基带单元(baseband unit，BBU)，或，分布式单元(distributed unit，DU)等，本申请实施例并不限定。
在一些部署中，gNB可以包括集中式单元(centralized unit，CU)和DU。gNB还可以包括有源天线单元(active antenna unit，AAU)。CU实现gNB的部分功能，DU实现gNB的部分功能。比如，CU负责处理非实时协议和服务，实现无线资源控制(radio resource control，RRC)，分组数据汇聚层协议(packet data convergence protocol，PDCP)层的功 能。DU负责处理物理层协议和实时服务，实现无线链路控制(radio link control，RLC)层、媒体接入控制(media access control，MAC)层和物理(physical，PHY)层的功能。AAU实现部分物理层处理功能、射频处理及有源天线的相关功能。由于RRC层的信息最终会变成PHY层的信息，或者，由PHY层的信息转变而来，因而，在这种架构下，高层信令，如RRC层信令，也可以认为是由DU发送的，或者，由DU+AAU发送的。可以理解的是，网络设备可以为包括CU节点、DU节点、AAU节点中一项或多项的设备。此外，可以将CU划分为接入网(radio access network，RAN)中的网络设备，也可以将CU划分为核心网(core network，CN)中的网络设备，本申请对此不做限定。
在本申请实施例中，终端设备或网络设备包括硬件层、运行在硬件层之上的操作***层，以及运行在操作***层上的应用层。该硬件层包括中央处理器(central processing unit，CPU)、内存管理单元(memory management unit，MMU)和内存(也称为主存)等硬件。该操作***可以是任意一种或多种通过进程(process)实现业务处理的计算机操作***，例如，Linux操作***、Unix操作***、Android操作***、iOS操作***或windows操作***等。该应用层包含浏览器、通讯录、文字处理软件、即时通信软件等应用。并且，本申请实施例并未对本申请实施例提供的方法的执行主体的具体结构特别限定，只要能够通过运行记录有本申请实施例的提供的方法的代码的程序，以根据本申请实施例提供的方法进行通信即可，例如，本申请实施例提供的方法的执行主体可以是终端设备或网络设备，或者，是终端设备或网络设备中能够调用程序并执行程序的功能模块。
图1示出了适用于本申请实施例的一种通信场景的示意图。图1中的通信***可以包括至少一个终端设备(例如终端设备110、终端设备120、终端设备130、终端设备140、终端设备150和终端设备160)和网络设备170。网络设备170用于为终端设备提供通信服务并接入核心网，终端设备可以通过搜索网络设备170发送的同步信号、广播信号等接入网络，从而建立与网络设备之间的通信。图1中的终端设备110、终端设备120、终端设备130、终端设备140和终端设备160可以与网络设备170进行上下行传输。例如，网络设备170可以向终端设备110、终端设备120、终端设备130、终端设备140和终端设备160发送下行信号，也可以接收终端设备110、终端设备120、终端设备130、终端设备140和终端设备160发送的上行信号。
此外，终端设备140、终端设备150和终端设备160也可以看作一个通信***，终端设备160可以向终端设备140和终端设备150发送下行信号，也可以接收终端设备140和终端设备150发送的上行信号。
应理解，该通信***中包括的网络设备可以是一个或多个。一个网络设备可以向一个或多个终端发送信号。多个网络设备也可以同时向一个或多个终端发送信号。
目前NR中引入了带宽部分(bandwidth part，BWP)的概念。BWP是一个载波上的一部分连续的频域资源，通常以资源块(resource block，RB)作为最小频域单元，并且一个RB可以包括多个子载波(subcarrier)，一个资源块组(resource block group，RBG)由一个或多个资源块组成。NR中通过高层参数配置RBG的大小。需要说明的是，本申请中提及的RBG的大小，理解为RBG包括的资源块的数量。根据数据的上行传输和下行传输，BWP可以分为上行BWP和下行BWP，其中，用于传输上行数据的BWP称为上行BWP，用于传输下行数据的BWP称为下行BWP。
网络设备可以向终端设备发送BWP的配置信息，从而为终端设备配置多个BWP。通 常情况下基于复杂度的考虑，网络设备能够为终端设备配置的BWP的数量是有限的，例如，对于一个终端设备来说，网络设备最大可以配置4个BWP，并且不同BWP的频域资源可以有重叠，也可以没有重叠。当网络设备为终端设备配置的BWP的数量大于1的情况下，只有一个BWP是被激活的，当被激活的BWP的带宽的大小小于或等于终端设备的最大带宽时，终端设备可以根据激活的BWP与网络设备进行通信。
终端设备的带宽可以包括射频(radio frequency，RF)带宽和基带(baseband，BB)带宽。射频带宽可以是射频处理部分的带宽，其中，射频处理部分可以至少包括以下一项或多项：天线阵列、功放、滤波器、RF收发器、双工器或转换器等功能块。射频带宽还可以是射频链路的一个或者多个功能块的带宽。基带带宽可以为基带处理部分的带宽，其中，基带处理部分可以至少包括以下一项或多项：模数转换器(analog-to-digital converter，ADC)/数模转换器(digital-to-analog converter，DAC)、信道编码/译码、快速傅里叶变换(fast fourier transform，FFT)/逆快速傅里叶变换(inverse fast fourier transform，FFT)IFFF、Post-FFT数据缓存、接收处理块、混合自动重传请求(hybrid auto retransmission request，HARQ)缓存、下行控制处理以及编码/译码、同步/小区搜索块、上行处理块或多入多出(multiple input multiple output，MIMO)专属处理块等功能块。基带带宽还可以是基带处理部分的一个或者多个功能块的带宽。
对于射频带宽和基带带宽相同的终端设备，BWP的带宽配置可以参考射频带宽和基带带宽中的其中之一，例如，BWP的带宽的大小小于或等于终端设备的最大射频带宽时，也小于或等于终端设备的最大基带带宽。然而，对于射频带宽和基带带宽不相同的终端设备，网络设备为终端设备配置BWP的带宽时，参考射频带宽还是参考基带带宽是不明确的。以参考终端设备的射频带宽配置BWP的带宽为例，当BWP的带宽的大小小于或等于终端设备的射频带宽时，此时BWP的带宽有可能大于终端设备的基带带宽，也有可能小于BWP的基带带宽。当BWP的带宽大于终端设备的基带带宽时，终端设备和网络设备进行数据传输时的带宽超过终端设备的基带处理能力，导致出现传输错误，因而终端设备无法与网络设备之间进行通信。
鉴于上述技术问题，本申请提供了一种通信方法。通过该方法，本申请能够在网络设备为终端设备配置BWP的带宽时，同时兼顾终端设备的射频带宽和基带带宽，进而使得终端设备能够与网络设备之间进行信号的传输。
下面将结合附图详细说明本申请提供的各个实施例。
图2示出了本申请实施例提供的一种通信方法200的示意图。如图2所示，方法200可以包括如下步骤。
210，网络设备向终端设备发送BWP的配置信息。
示例性的，该BWP可以至少包括第一带宽和第二带宽，其中，该第一带宽根据该终端设备的射频带宽确定，该第二带宽根据该终端设备的基带带宽确定。
也就是说，网络设备为终端设备配置的BWP的带宽可以分为两个，如分别记为第一带宽和第二带宽，第一带宽可以基于射频带宽配置，第二带宽可以基于基带带宽配置。在该情况下，BWP的带宽配置可以兼顾多种带宽能力的终端设备，例如，该终端设备的射频带宽可以与终端设备的基带带宽相同，又如，该终端设备的射频带宽可以与终端设备的基带带宽不相同。
一种可能的方式，终端设备的射频带宽与终端设备的基带带宽相同。在该方式下，第 一带宽的大小小于终端设备的射频带宽时，也会小于终端设备的基带带宽；第二带宽的大小小于终端设备的射频带宽时，也会小于终端设备的基带带宽。
另一种可能的方式，终端设备的射频带宽与终端设备的基带带宽不相同。在该方式下，第一带宽的大小小于终端设备的射频带宽时，有可能会大于终端设备的基带带宽；第二带宽的大小小于终端设备的射频带宽时，也有可能大于终端设备的基带带宽。
220，终端设备接收来自网络设备的BWP的配置信息。
230，终端设备通过BWP与网络设备通信。
基于上述技术方案，网络设备为终端设备配置的BWP可以同时兼顾射频带宽和基带带宽，使得该BWP不仅可以适用于射频带宽和基带带宽相同的终端设备，也可以适用于射频带宽和基带带宽不相同的终端设备。因此，通过上述方案，能够将不同带宽能力的终端设备接入到网络设备中，进而与网络设备之间进行通信。
示例性地，第一带宽可以用于指示终端设备接收或者发送信号所使用的频域资源的最大范围；第二带宽可以用于指示终端设备接收或者发送信号所使用的频域资源的最大传输带宽。
其中，最大范围限定了终端设备接收或者发送的信号所使用的频域资源的范围；最大传输带宽限定了终端设备接收或者发送的信号的带宽的最大值。例如，假设终端设备接收或者发送信号所使用的频域资源的最大传输带宽为5MHz，则终端设备接收或者发送信号的带宽应该小于或等于5MHz；再例如，假设终端设备接收或者发送信号所使用的频域资源的最大传输带宽为10MHz，则终端设备接收或者发送信号的带宽应该小于或等于10MHz。
示例性地，第二带宽基于终端设备配置；或者，第二带宽基于终端设备接收或发送的信号配置。
一种可能的方式，第二带宽基于终端设备配置。此时终端设备接收或者发送的信号的带宽都是根据该第二带宽确定的，并且终端设备接收或者发送的信号的带宽小于或等于该第二带宽。例如，当第二带宽的大小大于终端设备的射频带宽时，终端设备接收或者发送的信号的带宽也可以大于终端设备的射频带宽。
另一种可能的方式，第二带宽基于终端设备接收或发送的信号配置。由于不同的信号可以对应不同的带宽，因此第二带宽的配置也是不同的。例如，对于带宽的大小小于或等于终端设备的射频带宽的信号，如下行物理共享信道(physical downlink share channel，PDSCH)上传输的信号，又如上行物理共享信道(physical uplink share channel，PUSCH)上传输的信号，此时第二带宽的大小也小于或等于终端设备的射频带宽；再例如，对于带宽大于终端设备的射频带宽的信号，如物理广播信道(physicalbroadcast channel，PBCH)上传输的信号，此时第二带宽也大于终端设备的射频带宽。应理解，无论该信号的带宽是否大于终端设备的基带带宽，该信号的带宽始终不会大于该第二带宽。
示例性地，BWP的配置信息至少包括第一带宽的频域位置，其中，第二带宽的频域位置根据第一带宽的频域位置确定。
一种可能的方式，第二带宽的频域位置根据偏移量与第一带宽的频域位置确定，其中，该偏移量为第二带宽的频域位置相对于第一带宽的频域位置的偏移量。
应理解，该BWP的配置信息可以包括第二带宽的频域位置，也可以不包括第二带宽的频域位置。当BWP的配置信息不包括第二带宽的频域位置时，该偏移量可以是网络设 备通过信令指示的，例如，该偏移量可以是通过下行控制信息(downlink control information，DCI)指示的，也可以是通过无线资源控制(radio resource control，RRC)指示的。该偏移量也可以是终端设备的能力值，也可以是协议预定义的，本申请实施例对此不作限定。
示例性地，第二带宽位于第一带宽与第一带宽的频域位置确定的频域资源范围内。
示例性地，第二带宽的频域位置包括一个或多个频域位置。
示例性地，第二带宽和第二带宽的N个频域位置确定的M个频域资源为BWP中的M个子BWP，其中，N、M为正整数。
应理解，N可以大于M，也可以等于M，也可以小于M，本申请实施例并不限定N和M的大小。当N等于M时，根据第二带宽和第二带宽的N个频域位置确定N个频域资源为一种优选方式。
一种可能的方式，第二带宽存在一个频域位置，可以基于第二带宽和第二带宽的频域位置确定一个频域资源，并且该频域资源可以是BWP中的一个子BWP。
另一种可能的方式，第二带宽存在多个频域位置，可以基于第二带宽和第二带宽的频域位置确定多个频域资源。该多个频域资源可以定义为BWP中的多个子BWP。例如，第二带宽存在五个频域位置，此时可以基于第二带宽和第二带宽的频域位置确定五个频域资源，并且每个频域资源可以是BWP中的一个子BWP；再例如，第二带宽存在五个频域位置，此时可以基于第二带宽和第二带宽的频域位置确定大于或者小于五个频域资源，并且每个频域资源可以是BWP中的一个子BWP。
根据步骤210，第一带宽和第二带宽与终端设备的射频带宽和终端设备的基带带宽之间的大小关系可以包括以下四种方式。
方式#1：第一带宽的大小小于或等于终端设备的最大射频带宽，第二带宽的大小小于或等于终端设备的最大基带带宽。
也就是说，此时终端设备接收或发送的信号的带宽小于或等于终端设备的最大基带带宽。例如，假设终端设备的最大射频带宽为20MHz，终端设备的最大基带带宽为5MHz，此时第一带宽的大小应该小于或等于20MHz，第二带宽的大小应该小于或等于5MHz，并且终端设备接收或发送的信号的带宽小于或等于5MHz。
示例性地，第二带宽基于终端设备配置；或者，第二带宽基于终端设备接收或发送的信号配置。关于第二带宽的两种配置方式的示例性说明可参考步骤230中的描述，在此不再进行赘述。
基于上述技术方案，当第一带宽的大小小于或等于终端设备的最大射频带宽、第二带宽的大小小于或等于终端设备的最大基带带宽时，终端设备传输信号所使用的频域资源的带宽小于或等于终端设备的最大基带带宽，此时终端设备的基带不需要处理超过其带宽能力的数据块，因而不会增加处理时延，也有利于降低信号的整体传输时延。
方式#2：第一带宽的大小和第二带宽的大小均小于或等于终端设备的最大射频带宽、且均大于终端设备的最大基带带宽。
也就是说，此时终端设备接收或发送的信号的带宽小于或等于终端设备的最大射频带宽，并可以大于终端设备的最大基带带宽。例如，假设终端设备的最大射频带宽为20MHz，终端设备的最大基带带宽为5MHz，此时第一带宽的大小和第二带宽的大小均应该小于或等于20MHz，且均可以大于5MHz，此时终端设备接收或发送的信号的带宽可以大于5MHz，并小于或等于20MHz。
示例性地，终端设备的第一信道/第一信号的处理时延大于第二终端设备的第一信道/第一信号的处理时延，其中，该终端设备的第一信道/第一信号的带宽大于该终端设备的最大基带带宽、且该终端设备的第一信道/第一信号的带宽小于或等于该终端设备的最大射频带宽，该第二终端设备的第一信道/第一信号的带宽小于或等于该第二终端设备的最大基带带宽、且该第二终端设备的第一信道/第一信号的带宽小于或等于该第二终端设备的最大射频带宽。
其中，第一信道可以是终端设备或第二终端设备的所有信道中的其中之一。第一信号可以为参考信号。例如，该第一信号可以是终端设备或第二终端设备的所有参考信号中的其中之一。本申请实施例对第一信道/第一信号的具体形式不作限定。例如，第一信道可以是PDSCH，第一信道还可以是PUSCH；再例如，第一信号可以是信道状态指示参考信号(channel state information–reference signal，CSI-RS)，第一信号还可以是探测参考信号(sounding reference signal，SRS)。
其中，终端设备的最大基带带宽小于第二终端设备的最大基带带宽，终端设备的最大射频带宽可以与第二终端设备的最大射频带宽的处理能力相当；或者，终端设备的最大基带带宽小于第二终端设备的最大基带带宽，终端设备的最大射频带宽也小于第二终端设备的最大射频带宽。
应理解，对于第一信道/第一信号的带宽大于最大基带带宽、且第一信道/第一信号的带宽小于或等于最大射频带宽的终端设备，由于第一信道/第一信号的带宽小于或等于最大射频带宽，因此该终端设备可以将在第一信道/第一信号上传输的信号在同一时刻完全接收；由于第一信道/第一信号的带宽大于最大基带带宽，因此该终端设备的基带处理该信号时的时延便会增加。
例如，终端设备的最大射频带宽为20MHz，终端设备的最大基带带宽为5MHz，第二终端设备的最大射频带宽为20MHz，第二终端设备的最大基带带宽为20MHz。
以第一信道是PDSCH为例，假设PDSCH带宽为10MHz。对于第二终端设备来说，PDSCH的带宽(10MHz)小于第二终端设备的最大射频带宽(20MHz)，此时第二终端设备的射频部分可以将在PDSCH上传输的信号完全接收。PDSCH的带宽(10MHz)小于第二终端设备的最大基带带宽(20MHz)，此时第二终端设备的基带部分可以完成对该信号的处理。对于终端设备来说，PDSCH的带宽(10MHz)小于终端设备的最大射频带宽(20MHz)，此时终端设备可以将在PDSCH上传输的信号完全接收。PDSCH的带宽(10MHz)大于终端设备的最大基带带宽(5MHz)，相比于第二终端设备的基带部分的处理时延，此时终端设备的基带部分需要通过增加处理时延来完成对该信号的处理，示例性地，该处理时延可以是终端设备接收到PDSCH到发送承载该PDSCH的HARQ-ACK的PUCCH之间的处理时延。以第二终端设备处理该信号时的时延T1为例，终端设备处理该信号时的时延为T1+delta1，其中delta1为终端设备处理该信号时的时延相比于第二终端设备处理该信号时的时延所增加的时间。
以第一信道是PUSCH为例，假设PUSCH带宽为8MHz。对于第二终端设备来说，PUSCH的带宽(8MHz)小于第二终端设备的最大射频带宽(20MHz)，此时第二终端设备的射频部分可以将在PUSCH上传输的信号完全发送。PUSCH的带宽(8MHz)小于第二终端设备的最大基带带宽(20MHz)，此时第二终端设备的基带部分可以完成对该信号的处理。对于终端设备来说，PUSCH的带宽(8MHz)小于终端设备的最大射频带宽 (20MHz)，此时终端设备可以将在PUSCH上传输的信号完全发送。PUSCH的带宽(8MHz)大于终端设备的最大基带带宽(5MHz)，相比于第二终端设备的基带部分的时延，此时终端设备的基带部分需要通过增加处理时延来完成对该信号的处理。示例性地，该处理时延可以是终端设备接收到承载PUSCH的DCI的下行物理控制信道(physical downlink control channel，PDCCH)，到发送该PUSCH之间的处理时延。以第二终端设备处理该信号时的时延T2为例，终端设备处理该信号时的时延为T2+delta2，其中delta2为终端设备处理该信号时的时延相比于第二终端设备处理该信号时的时延所增加的时间。
以第一信号是CSI-RS为例，假设CSI-RS带宽为15MHz。对于第二终端设备来说，CSI-RS的带宽(15MHz)小于第二终端设备的最大射频带宽(20MHz)，此时第二终端设备的射频部分可以将在CSI-RS上传输的信号完全接收。CSI-RS的带宽(15MHz)小于第二终端设备的最大基带带宽(20MHz)，此时第二终端设备的基带部分可以完成对该信号的处理。对于终端设备来说，CSI-RS的带宽(15MHz)小于终端设备的最大射频带宽(20MHz)，此时终端设备可以将在CSI-RS上传输的信号完全接收。CSI-RS的带宽(15MHz)大于终端设备的最大基带带宽(5MHz)，相比于第二终端设备的基带部分的时延，此时终端设备的基带部分需要通过增加处理时延来完成对该信号的处理，示例性地，该处理时延可以是终端设备接收到触发CSI测量反馈的DCI，到上报信道状态信息之间的处理时延，该信道状态信息可以包括以下一种或多种：参考信号接收功率(reference signal receiving power，RSRP)、信号与干扰加噪声比(signal to interference plus noise ratio，SINR)、信道质量指示(channel quality indication，CQI)、秩指示(rank indicator，RI)、预编码矩阵指示(precoding matrix indicator，PMI)或乘指示(linearindicator，LI)。以第二终端设备处理该信号时的时延T3为例，终端设备处理该信号时的时延为T3+delta3，其中delta3为终端设备处理该信号时的时延相比于第二终端设备处理该信号时的时延所增加的时间。
应理解，对于不同带宽能力的第二终端设备来说，终端设备的第一信道/第一信号的处理时延相比于第二终端设备的第一信道/第一信号的处理时延所增加的时间可以是不同的，具体取决于第二终端设备的处理能力。例如，假设有两个第二终端设备，它们的基带带宽分别为20MHz和50MHz，终端设备的基带带宽为5MHz，若基带带宽为50MHz的第二终端设备的第一信道/第一信号的处理时延为T4，则基带带宽为20MHz的第二终端设备的第一信道/第一信号的处理时延为T4+delta4，终端设备的第一信道/第一信号的处理时延为T4+delta5，并且delta4小于delta5。
示例性地，第二带宽基于终端设备配置；或者，第二带宽基于终端设备接收或发送的信号配置。关于第二带宽的两种配置方式的示例性说明可参考步骤230中的描述，在此不再进行赘述。
基于上述技术方案，当第一带宽的大小和第二带宽的大小均小于或等于终端设备的最大射频带宽、且均大于终端设备的最大基带带宽时，终端设备传输信号所使用的频域资源的带宽在小于或等于终端设备的最大射频带宽的前提下，是可以大于终端设备的最大基带带宽的。在该情况下，终端设备的射频可以接收全部信号，不会造成数据的丢失，并且终端设备的基带可以通过增加时延完成对大数据块的处理。
方式#3：第一带宽的大小和第二带宽的大小均小于或等于终端设备的最大射频带宽、且均小于或等于终端设备的最大基带带宽。
也就是说，此时第一带宽的大小和第二带宽的大小均应该小于或等于终端设备的最大 射频带宽与最大基带带宽的最小值，并且终端设备接收或发送的信号的带宽小于或等于终端设备的最大射频带宽，也小于或等于终端设备的最大基带带宽，即终端设备接收或发送的信号的带宽小于或等于终端设备的最大射频带宽与最大基带带宽的最小值。例如，假设终端设备的最大射频带宽为20MHz，终端设备的最大基带带宽为5MHz，此时第一带宽的大小和第二带宽的大小均应该小于或等于20MHz，且均应该小于或等于5MHz，即，第一带宽的大小和第二带宽的大小均应该小于或等于5MHz(20MHz与5MHz的最小值)，终端设备接收或发送的信号的带宽小于或等于5MHz(20MHz与5MHz的最小值)。
示例性地，第二带宽基于终端设备配置；或者，第二带宽基于终端设备接收或发送的信号配置。关于第二带宽的两种配置方式的示例性说明可参考步骤230中的描述，在此不再进行赘述。
应理解，在该方式下，第一带宽和第二带宽可以只配置其中之一，也可以将第一带宽和第二带宽分别配置，本申请实施例对此不作限定。
基于上述技术方案，当第一带宽的大小和第二带宽的大小均小于或等于终端设备的最大射频带宽、且均小于或等于终端设备的最大基带带宽时，终端设备传输信号所使用的频域资源的带宽不会大于终端设备的最大射频带宽，也不会大于终端设备的最大基带带宽。在该情况下，终端设备可以直接复用现有的BWP机制，对NR协议改动也较小，性能损失也会降低。
方式#4：第一带宽的大小和第二带宽的大小均大于终端设备的最大射频带宽、且均大于终端设备的最大基带带宽。
也就是说，此时第一带宽的大小和第二带宽的大小均可以大于终端设备的最大射频带宽与最大基带带宽的最大值，并且终端设备接收或发送的信号的带宽可以大于终端设备的最大射频带宽，也可以大于终端设备的最大基带带宽，即终端设备接收或发送的信号的带宽可以大于终端设备的最大射频带宽与终端设备的最大基带带宽的最大值。例如，假设终端设备的最大射频带宽为20MHz，终端设备的最大基带带宽为5MHz，此时第一带宽的大小和第二带宽的大小均可以大于20MHz，且均可以大于5MHz，即，第一带宽和第二带宽均可以大于20MHz(20MHz与5MHz的最大值)，终端设备接收或发送的信号的带宽可以大于20MHz。
示例性地，终端设备的第一信道/第一信号的处理时延大于第二终端设备的第一信道/第一信号的处理时延，其中，该终端设备的第一信道/第一信号的带宽大于该终端设备的最大基带带宽、且该终端设备的第一信道/第一信号的带宽大于该终端设备的最大射频带宽，该第二终端设备的第一信道/第一信号的带宽小于或等于该第二终端设备的最大基带带宽、且该第二终端设备的第一信道/第一信号的带宽小于或等于该第二终端设备的最大射频带宽。
其中，第一信道可以是终端设备或第二终端设备的所有信道中的其中之一，第一信号可以为参考信号，该第一信号可以是终端设备或第二终端设备的所有参考信号中的其中之一，本申请实施例对第一信道/第一信号的具体形式不作限定。例如，第一信道可以是PBCH。
其中，终端设备的最大基带带宽小于第二终端设备的最大基带带宽，或者，终端设备的最大射频带宽小于第二终端设备的最大射频带宽。
应理解，对于第一信道/第一信号的带宽大于最大基带带宽、且第一信道/第一信号的带宽大于最大射频带宽的终端设备，该终端设备不能够将在第一信道/第一信号传输的信 号在同一时刻完全接收，而在该时刻只能接收该信号的一部分。对于重复发送的信号来说，终端设备可以在不同时刻不同频域资源上分别接收部分信号，并将接收到的部分信号进行合并处理，即可完成对该信号的完全接收，在这种情况下，终端设备的第一信道/第一信号的处理时延便会增加。
下面描述方式#4下终端设备的第一信道/第一信号的处理时延大于第二终端设备的第一信道/第一信号的处理时延时的示例性说明。
例如，终端设备的最大射频带宽为5MHz，终端设备的最大基带带宽为5MHz，第二终端设备的最大射频带宽为20MHz，第二终端设备的最大基带带宽为20MHz。
以第一信道是PBCH为例，假设PBCH的带宽为7.2MHz。对于第二终端设备来说，PBCH的带宽(7.2MHz)小于第二终端设备的最大射频带宽(20MHz)，此时第二终端设备可以将在PBCH上传输的信号完全接收；PBCH的带宽(7.2MHz)也小于第二终端设备的最大基带带宽(20MHz)，此时第二终端设备的基带部分可以完成对该信号的处理。对于终端设备来说，PBCH的带宽(7.2MHz)大于终端设备的最大射频带宽(5MHz)，PBCH的带宽(7.2MHz)也大于终端设备的最大基带带宽(5MHz)，因此该终端设备不能够将在PBCH上传输的信号在同一时刻完全接收，而在该时刻只能接收该信号的一部分。对于重复发送的信号来说，终端设备可以通过合并处理多次接收到的部分信号，从而完成对该信号的完全接收。相比于第二终端设备的处理该信号时的时延，此时终端设备需要通过增加处理时延来完成对该信号的处理。以第二终端设备处理该信号时的时延T6为例，终端设备处理该信号时的时延为T6+delta6，其中delta6为终端设备处理该信号时的时延相比于第二终端设备处理该信号时的时延所增加的时间。
应理解，对于不同带宽能力的第二终端设备来说，终端设备的第一信道/第一信号的处理时延相比于第二终端设备的第一信道/第一信号的处理时延所增加的时间可以是不同的，具体取决于第二终端设备的处理能力。具体示例性说明可参考方式#2中的描述，在此不再进行赘述。
示例性地，第二带宽基于终端设备配置；或者，第二带宽基于终端设备接收或发送的信号配置。关于第二带宽的两种配置方式的示例性说明可参考步骤230中的描述，在此不再进行赘述。
应理解，在该方式下，第一带宽和第二带宽可以只配置其中之一，也可以将第一带宽和第二带宽分别配置，本申请实施例对此不作限定。
基于上述技术方案，当第一带宽的大小和第二带宽的大小均大于终端设备的最大射频带宽、且均大于终端设备的最大基带带宽时，终端设备传输信号所使用的频域资源的带宽可以大于终端设备的最大射频带宽，也可以大于终端设备的最大基带带宽。在该情况下，终端设备可以直接复用现有的信号与网络设备通信，例如，终端设备复用现有的同步广播块(synchronization signal/PBCH block，SSB)、***信息块(system information block，SIB)与网络设备通信，从而可以降低资源的开销。
应理解，第一带宽和第二带宽与终端设备的射频带宽和终端设备的基带带宽之间的大小关系除了包括上述四种方式外，还可以包括其它方式，例如，第一带宽的大小大于终端设备的最大射频带宽、且大于终端设备的最大基带带宽，第二带宽的大小小于或等于终端设备的最大射频带宽、且小于或等于终端设备的最大基带带宽。本申请实施例对此并不限定。
示例性地，根据第一带宽和第二带宽确定物理下行共享信道PDSCH/物理上行共享信道PUSCH的频域资源分配。
其中，PDSCH/PUSCH的频域资源分配可以有两种类型，分别为type 0频域资源分配和type 1频域资源分配。
对于类型为type 0的频域资源分配，该类型的频域资源分配为非连续频域资源分配，该频域资源分配的方式为：将BWP中的资源块分为N RBG个资源块组，使得每个资源块组中含有Y个连续的资源块，并且N RBG个资源块组与N RBG个比特一一对应。当网络设备预使用某个资源块组与终端设备通信时，终端设备将与该资源块组相对应的比特设置为“1”,否则设置为“0”。因此，type 0类型可通过比特图或位图指示BWP中分配给PDSCH/PUSCH使用的资源块组。
示例性地，对于类型为type 0的频域资源分配，根据第一带宽和第二带宽确定BWP所包含的资源块组的个数，其中，该BWP所包含的资源块的个数根据该第一带宽确定，该资源块组的大小根据所述第二带宽确定。
其中，该BWP中所包含的资源块组的个数(即资源指示域的长度)满足公式(1)：
Figure PCTCN2023071343-appb-000001
其中，N RBG为资源块组的个数，
Figure PCTCN2023071343-appb-000002
为第一带宽的大小，
Figure PCTCN2023071343-appb-000003
为该BWP的起始资源块，mod为取模运算，P为资源块组的大小。关于资源块组的大小的确定可根据下面描述。
第一个资源块组的大小满足公式(2)：
Figure PCTCN2023071343-appb-000004
最后一个资源块组的大小满足公式(3)：
如果
Figure PCTCN2023071343-appb-000005
否则
Figure PCTCN2023071343-appb-000006
其它资源块组的大小等于P。
其中，P的取值可以根据表1确定。如表1所示，第一列给出了第二带宽的大小的范围，第二列(资源块组的大小1)和第三列(资源块组的大小2)可以是网络设备通过RRC信令配置的，当第二带宽的大小确定时，此时对应的资源块组的大小可以取第二列和第三列中的其中之一。例如，当第二带宽的大小为100时，此时资源块组的大小可以为资源块组的大小1对应的8，也可以为资源块组的大小2对应的16。
表1
第二带宽的大小 资源块组的大小1 资源块组的大小2
1-36 2 4
37-72 4 8
73-144 8 16
145-275 16 16
因此，如果频域资源分配仅配置为type 0类型时，频域资源分配指示域的比特长度或者个数为通过上述过程确定的N RBG。
对于类型为type 1的频域资源分配，该类型的频域资源分配为连续频域资源分配，其资源指示域包括一个资源指示值(resource indication value，RIV)，该RIV与一个起始资源块和一个连续分配的资源块的长度相关。
示例性地，对于类型为type 1的频域资源分配，根据第一带宽和第二带宽确定RIV。
其中，该RIV可根据以下公式确定：
如果
Figure PCTCN2023071343-appb-000007
则RIV的值满足公式(4)：
Figure PCTCN2023071343-appb-000008
否则，RIV的值满足公式(5)：
Figure PCTCN2023071343-appb-000009
其中，
Figure PCTCN2023071343-appb-000010
为第一带宽的大小，L RBs为连续分配的资源块的长度，RB start为起始资源块，且
Figure PCTCN2023071343-appb-000011
Figure PCTCN2023071343-appb-000012
为第二带宽的大小。
因此，如果频域资源分配配置仅为type 1类型时，频域资源分配指示域的比特长度或者个数满足公式(6)：
Figure PCTCN2023071343-appb-000013
其中，
Figure PCTCN2023071343-appb-000014
为第一带宽的大小，
Figure PCTCN2023071343-appb-000015
为第二带宽的大小。
进一步地，通过对公式(1)和公式(6)的分析，如果频域资源分配配置为‘dynamicSwitch’，则频域资源分配指示域的比特长度或者个数满足公式(7)：
Figure PCTCN2023071343-appb-000016
其中，该频域资源分配指示域的最高位比特用于指示该资源分配是type 0资源分配还是type 1资源分配。例如，当最高位比特指示为type 0类型的资源分配时，低位的N RBG个比特提供频域资源分配；再例如，当最高位比特指示为type 1类型的资源分配时，低位的
Figure PCTCN2023071343-appb-000017
个比特提供频域资源分配。
基于上述技术方案，PDSCH/PUSCH的频域资源分配可以同时根据第一带宽和第二带宽确定，从而能够在保证频率分集增益或者频率选择性调度增益的同时，降低资源块组粒度，提高频域资源利用率，并改善PDSCH/PUSCH的频域资源的检测性能。
为便于理解，下面结合图3至图5介绍适用于本申请实施例的几种频域位置的示意图。图3主要介绍当BWP的配置信息不包括第二带宽的频域位置时，关于第二带宽的频域位置的确定方法；图4主要介绍当BWP的配置信息包括第二带宽的一个频域位置时，关于第二带宽的频域位置的确定方法；图5主要介绍当BWP的配置信息包括第二带宽的多个频域位置时，关于第二带宽的频域位置的确定方法。其中，图3、图4以及图5所示的关于频域位置的确定可以用于步骤210中涉及的四种方式(即方式#1、方式#2、方式#3和方式#4)中的任意一种，以便使得终端设备可以在第一带宽的频域资源上动态发送或者接收信号，并且当第一带宽的大小小于或等于终端设备的最大射频带宽时，终端设备在第二带宽的频域位置上进行切换可以不重新调整射频，从而降低终端设备的切换时延，同时终端设备也能够获得更大的频率分集增益。
图3示出了本申请实施例提供的一种频域位置300的示意图。
示例性地，BWP的配置信息至少包括第一带宽的频域位置，其中，第二带宽的频域位置根据第一带宽的频域位置确定。
一种可能的方式，第二带宽的频域位置根据偏移量与第一带宽的频域位置确定，其中，该偏移量为第二带宽的频域位置相对于第一带宽的频域位置的偏移量。
示例性地，该偏移量可以是网络设备通过信令指示的，例如，该偏移量可以是网络设备通过DCI指示，具体的，该偏移量可以是网络设备通过DCI中的频域资源指示域(frequency domain resource allocation，FDRA)指示；再例如，该偏移量可以是网络设备通过RRC指示，再例如，该偏移量可以是网络设备通过多媒体接入控制层控制单元(media access control control element，MAC CE)指示。该偏移量也可以是终端设备的能力值，也可以是协议预定义的，本申请实施例对此不作限定。
示例性地，第二带宽位于第一带宽与第一带宽的频域位置确定的频域资源范围内。
一种可能的方式，第二带宽存在一个频域位置，可以基于第二带宽和第二带宽的频域位置确定一个频域资源，并且该频域资源可以是BWP中的一个子BWP。
基于上述技术方案，终端设备可以在第一带宽的频域资源上动态发送或者接收信号，当通过多次信令指示、或者终端设备的能力值、或者协议预定义确定的第二带宽的频域位置有所不同时，第二带宽的频域位置会有一个切换过程。考虑到第二带宽的频域位置是根据该第一带宽的频域位置确定的，并且当第一带宽的大小小于或等于终端设备的最大射频带宽时，终端设备在第二带宽的频域位置上进行切换可以不重新调整射频，从而降低终端设备的切换时延，同时终端设备也能够获得更大的频率分集增益。
图4示出了本申请实施例提供的又一种频域位置400的示意图。
示例性地，BWP的配置信息至少包括第一带宽的频域位置，其中，第二带宽的频域位置根据第一带宽的频域位置确定。
一种可能的方式，第二带宽的频域位置根据偏移量与第一带宽的频域位置确定，其中，该偏移量为第二带宽的频域位置相对于第一带宽的频域位置的偏移量。
示例性地，该BWP的配置信息还包括第二带宽的频域位置相对于第一带宽的频域位置的偏移量。
示例性地，第二带宽位于第一带宽与第一带宽的频域位置确定的频域资源范围内。
一种可能的方式，第二带宽存在一个频域位置，可以基于第二带宽和第二带宽的频域位置确定一个频域资源，并且该频域资源可以是BWP中的一个子BWP。
基于上述技术方案，终端设备可以在第一带宽的频域资源上动态发送或者接收信号，当通过多个BWP的配置信息确定的第二带宽的频域位置有所不同时，第二带宽的频域位置会有一个切换过程。考虑到第二带宽的频域位置是根据该第一带宽的频域位置确定的，并且当第一带宽的大小小于或等于终端设备的最大射频带宽时，终端设备在第二带宽的频域位置上进行切换可以不重新调整射频，从而降低终端设备的切换时延，同时终端设备也能够获得更大的频率分集增益。
图5示出了本申请实施例提供的又一种频域位置500的示意图。
示例性地，BWP的配置信息至少包括第一带宽的频域位置，其中，第二带宽的频域位置根据第一带宽的频域位置确定。
一种可能的方式，第二带宽的频域位置根据偏移量与第一带宽的频域位置确定，其中，该偏移量为第二带宽的频域位置相对于第一带宽的频域位置的偏移量。
示例性地，该BWP的配置信息还包括第二带宽的频域位置相对于第一带宽的频域位置的偏移量。
示例性地，第二带宽位于第一带宽与第一带宽的频域位置确定的频域资源范围内。
示例性地，第二带宽的频域位置包括多个频域位置。
示例性地，第二带宽和第二带宽的N个频域位置确定的M个频域资源为BWP中的M个子BWP，其中，N、M为大于1的正整数。
应理解，N可以大于M，也可以等于M，也可以小于M，本申请实施例并不限定N和M的大小。当N等于M时，根据第二带宽和第二带宽的N个频域位置确定N个频域资源为一种优选方式。
一种可能的方式，第二带宽存在多个频域位置，可以基于第二带宽和第二带宽的频域位置确定多个频域资源有，并且该多个频域资源可以定义为BWP中的多个子BWP。例如，第二带宽存在五个频域位置，此时可以基于第二带宽和第二带宽的频域位置所确定五个频域资源，并且每个频域资源可以是BWP中的一个子BWP；再例如，第二带宽存在五个频域位置，此时可以基于第二带宽和第二带宽的频域位置确定大于或者小于五个频域资源，并且每个频域资源可以是BWP中的一个子BWP。
基于上述技术方案，可以将第一带宽与第一带宽的频域位置确定的一个频域资源记为第一BWP，将第二带宽和第二带宽的频域位置确定的多个频域资源记为第二BWP。此时该第一BWP可以看作是该多个第二BWP的父BWP，该多个第二BWP可以看作是该第一BWP的子BWP。例如，第一BWP记为BWP#X时，该第二BWP可以分别记为BWP#X_0，BWP#X_1，…，BWP#X_Z，其中Z为该第二BWP的个数。
关于在一个BWP中配置多个子BWP的方式可以有以下三种。
方式#A：步骤1，网络设备通过信令(如RRC、又如MAC CE、又如DCI)为终端设备配置子BWP的个数M；步骤2，终端设备确定每个子BWP的带宽为BWP的带宽除以M；步骤3，当终端设备确定的每个子BWP的带宽不是正整数时，最后一个子BWP的带宽为：BWP的带宽-(M-1)*floor(BWP的带宽除以M)，其中，floor为向下取整运算。
方式#B：网络设备通过信令(如RRC、又如MAC CE)为终端设备配置每个子BWP的带宽。
方式#C：协议预定义子BWP。关于子BWP的个数M的确定以及每个子BWP的带宽的确定方法与方式#A类似，在此不再赘述。
示例性地，终端设备通过DCI指示多个子BWP中的其中之一为激活BWP。基于此，终端设备可以根据激活的子BWP与网络设备之间进行通信。例如，终端设备通过复用现有的DCI中的指示域(如BWP指示域，又如FDRA指示域)或者引入新的指示域来激活其中一个子BWP，从而与网络设备之间建立通信连接。
基于上述技术方案，终端设备可以在第一BWP的频域资源上动态发送或者接收信号。在第一BWP中配置多个第二BWP，可以使得多个第二BWP中的频域资源分配可以参考第一BWP的频域资源分配。并且当第一带宽的大小小于或等于终端设备的最大射频带宽时，终端设备在第二BWP的频域位置上进行切换可以不重新调整射频，从而能够降低终端设备的切换时延，提升终端设备的传输效率，同时也能够使得终端设备获得更大的频率分集增益。进一步扩展，该多个第二BWP可以共享全部或者部分相同的RRC配置参数(如 物理信道配置参数、又如信号配置参数)，从而能够降低终端设备的内存开销，进而降低终端设备的复杂度和成本。
可以理解，步骤210中限定了网络设备发送至终端设备的BWP的配置信息中，BWP至少包括第一带宽和第二带宽，然而本申请实施例并不限于此。例如，网络设备发送至终端设备的BWP的配置信息中，BWP可以包括第一带宽，在BWP的配置信息中包括指示信息，该指示信息用于指示终端设备接收或者发送信号所使用的频域资源的最大传输带宽。也就是说，本申请实施例并不限制BWP是否必须包括第二带宽，终端设备根据BWP的配置信息能够获知终端设备接收或者发送信号所使用的频域资源的最大传输带宽的其它方式，本申请实施例也包括在内。
还可以理解，本申请实施例中的图2至图5中的例子仅仅是为了便于本领域技术人员理解本申请实施例，并非要将本申请实施例限于例示的具体场景。本领域技术人员根据图2至图5的例子，显然可以进行各种等价的修改或变化，这样的修改或变化也落入本申请实施例的范围内。例如，图2至图5中的“在第一带宽的频域资源上动态发送或者接收信号”均可替换为“在第一带宽的频域资源上动态传输信号”。
还可以理解，本申请的各实施例中的一些可选的特征，在某些场景下，可以不依赖于其他特征，也可以在某些场景下，与其他特征进行结合，不作限定。
还可以理解，本申请的各实施例中的方案可以进行合理的组合使用，并且实施例中出现的各个术语的解释或说明可以在各个实施例中互相参考或解释，对此不作限定。
还可以理解，在本申请的各实施例中的各种数字序号的大小并不意味着执行顺序的先后，仅为描述方便进行的区分，不应对本申请实施例的实施过程构成任何限定。
还可以理解，上述各个方法实施例中，由终端设备或网络设备实现的方法和操作，也可以由终端设备或网络设备的组成部件(例如芯片或者电路)来实现。
相应于上述各方法实施例给出的方法，本申请实施例还提供了相应的装置，所述装置包括用于执行上述各个方法实施例相应的模块。该模块可以是软件，也可以是硬件，或者是软件和硬件结合。可以理解的是，上述各方法实施例所描述的技术特征同样适用于以下装置实施例。
上述本申请提供的实施例中，分别从网络设备、终端设备、以及网络设备和终端设备之间交互的角度对本申请实施例提供的方法进行了介绍。为了实现上述本申请实施例提供的方法中的各功能，网络设备和终端设备可以包括硬件结构和/或软件模块，以硬件结构、软件模块、或硬件结构加软件模块的形式来实现上述各功能。上述各功能中的某个功能以硬件结构、软件模块、还是硬件结构加软件模块的方式来执行，取决于技术方案的特定应用和设计约束条件。
图6和图7为本申请的实施例提供的可能的通信装置的结构示意图。这些通信装置可以实现上述方法实施例中终端设备或网络设备的功能，因此也能实现上述方法实施例所具备的有益效果。在本申请实施例中，该通信装置可以是如图1所示的终端设备110～160，也可以是如图1所示的网络设备170，还可以是应用于终端设备或网络设备的模块(如芯片)。
如图6所示，通信装置600包括收发模块601，收发模块601可以用于实现相应的通信功能。收发模块601还可以称为通信接口或通信单元。
示例性地，该装置600还可以包括处理模块602，处理模块602可以用于实现相应的 处理功能。
示例性地，该装置600还包括存储模块，该存储模块可以用于存储指令和/或数据，处理模块602可以读取存储模块中的指令和/或数据，以使得装置实现前述方法实施例中的终端设备或网络设备的动作。
该装置600可以用于执行上文方法实施例中终端设备或网络设备所执行的动作，这时，该装置600可以为终端设备或者终端设备的组成部件，也可以为网络设备或网络设备的组成部件，收发模块601用于执行上文方法实施例中终端设备或网络设备的收发相关的操作，处理模块602用于执行上文方法实施例中终端设备或网络设备的处理相关的操作。
作为一种设计，该装置600用于执行上文方法实施例中终端设备所执行的动作。
一种可能的实现方式，收发模块601，用于接收来自网络设备的带宽部分BWP的配置信息，该BWP包括第一带宽和第二带宽，该第一带宽根据终端设备的射频带宽确定，该第二带宽根据终端设备的基带带宽确定；处理模块602，用于通过该BWP与该网络设备通信。
示例性地，该第一带宽用于指示终端设备接收或者发送信号所使用的频域资源的最大范围；该第二带宽用于指示终端设备接收或者发送信号所使用的频域资源的最大传输带宽。
示例性地，该第一带宽的大小小于或等于终端设备的最大射频带宽，该第二带宽的大小小于或等于终端设备的最大基带带宽；或者，该第一带宽的大小和该第二带宽的大小均小于或等于终端设备的最大射频带宽、且均大于终端设备的最大基带带宽；或者，该第一带宽的大小和该第二带宽的大小均小于或等于终端设备的最大射频带宽、且均小于或等于终端设备的最大基带带宽；或者，该第一带宽的大小和该第二带宽的大小均大于终端设备的最大射频带宽、且均大于终端设备的最大基带带宽。
示例性地，该BWP的配置信息至少包括该第一带宽的频域位置，其中，该第二带宽的频域位置根据该第一带宽的频域位置确定。
示例性地，该第二带宽的频域位置根据该第一带宽的频域位置确定，包括：该第二带宽的频域位置根据偏移量与该第一带宽的频域位置确定，其中，该偏移量为该第二带宽的频域位置相对于该第一带宽的频域位置的偏移量。
示例性地，该第二带宽和该第二带宽的N个频域位置确定的M个频域资源为该BWP中的M个子BWP，其中，N、M为正整数。
示例性地，该方法还包括：处理模块602，用于根据该第一带宽和该第二带宽确定物理下行共享信道PDSCH/物理上行共享信道PUSCH的频域资源分配。
示例性地，对于类型为type 0的频域资源分配，处理模块602，用于根据该第一带宽和该第二带宽确定该BWP所包含的资源块组的个数，其中，该BWP所包含的资源块的个数根据该第一带宽确定，该资源块组的大小根据该第二带宽确定。
示例性地，处理模块602，用于使得终端设备的第一信道/第一信号的处理时延大于第二终端设备的第一信道/第一信号的处理时延，其中，终端设备的第一信道/第一信号的带宽大于终端设备的最大基带带宽、且终端设备的第一信道/第一信号的带宽小于或等于终端设备的最大射频带宽，该第二终端设备的第一信道/第一信号的带宽小于或等于该第二终端设备的最大基带带宽、且该第二终端设备的第一信道/第一信号的带宽小于或等于该第二终端设备的最大射频带宽。
该装置600可实现对应于根据本申请实施例的方法实施例中的终端设备执行的步骤 或者流程，该装置600可以包括用于执行图2至图5中任意一个所示实施例中终端设备执行的方法的模块。
作为另一种设计，该装置600用于执行上文各个方法实施例中网络设备所执行的动作。
一种可能的实现方式，收发模块601，用于向终端设备发送带宽部分BWP的配置信息，该BWP包括第一带宽和第二带宽，该第一带宽根据该终端设备的射频带宽确定，该第二带宽根据该终端设备的基带带宽确定；处理模块602，用于通过该BWP与该终端设备通信。
示例性地，该第一带宽用于指示该终端设备接收或者发送信号所使用的频域资源的最大范围；该第二带宽用于指示该终端设备接收或者发送信号所使用的频域资源的最大传输带宽。
示例性地，该第一带宽的大小小于或等于该终端设备的最大射频带宽，该第二带宽的大小小于或等于该终端设备的最大基带带宽；或者，该第一带宽的大小和该第二带宽的大小均小于或等于该终端设备的最大射频带宽、且均大于该终端设备的最大基带带宽；或者，该第一带宽的大小和该第二带宽的大小均小于或等于该终端设备的最大射频带宽、且均小于或等于该终端设备的最大基带带宽；或者，该第一带宽的大小和该第二带宽的大小均大于该终端设备的最大射频带宽、且均大于该终端设备的最大基带带宽。
示例性地，该BWP的配置信息至少包括该第一带宽的频域位置，其中，该第二带宽的频域位置根据该第一带宽的频域位置确定。
示例性地，该第二带宽的频域位置根据该第一带宽的频域位置确定，包括：该第二带宽的频域位置根据偏移量与该第一带宽的频域位置确定，其中，该偏移量为该第二带宽的频域位置相对于该第一带宽的频域位置的偏移量。
示例性地，该第二带宽和该第二带宽的N个频域位置确定的M个频域资源为该BWP中的M个子BWP，其中，N、M为正整数。
示例性地，该方法还包括：根据该第一带宽和该第二带宽确定物理下行共享信道PDSCH/物理上行共享信道PUSCH的频域资源分配。
示例性地，对于类型为type 0的频域资源分配，根据该第一带宽和该第二带宽确定该BWP所包含的资源块组的个数，其中，该BWP所包含的资源块的个数根据该第一带宽确定，该资源块组的大小根据该第二带宽确定。
示例性地，该终端设备的第一信道/第一信号的处理时延大于第二终端设备的第一信道/第一信号的处理时延，其中，该终端设备的第一信道/第一信号的带宽大于该终端设备的最大基带带宽、且该终端设备的第一信道/第一信号的带宽小于或等于该终端设备的最大射频带宽，该第二终端设备的第一信道/第一信号的带宽小于或等于该第二终端设备的最大基带带宽、且该第二终端设备的第一信道/第一信号的带宽小于或等于该第二终端设备的最大射频带宽。
该装置600可实现对应于根据本申请实施例的方法实施例中的网络设备执行的步骤或者流程，该装置600可以包括用于执行图2至图5中任意一个所示实施例中网络设备执行的方法的模块。
应理解，各单元执行上述相应步骤的具体过程在上述实施例中已经详细说明，为了简洁，在此不再赘述。
还应理解，这里的装置600以功能模块的形式体现。这里的术语“模块”可以指应用 特有集成电路(application specific integrated circuit，ASIC)、电子电路、用于执行一个或多个软件或固件程序的处理器(例如共享处理器、专有处理器或组处理器等)和存储器、合并逻辑电路和/或其它支持所描述的功能的合适组件。在一个可选例子中，本领域技术人员可以理解，装置600可以具体为上述实施例中的终端设备或网络设备，可以用于执行上述各方法实施例中与终端设备或网络设备对应的各个流程和/或步骤，为避免重复，在此不再赘述。
上述各个方案的装置600具有实现上述方法中终端设备或网络设备所执行的相应步骤的功能。所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的模块；例如收发模块可以由收发机替代(例如，收发模块中的发送模块可以由发送机替代，收发模块中的接收模块可以由接收机替代)，其它单元，如处理模块等可以由处理器替代，分别执行各个方法实施例中的收发操作以及相关的处理操作。
此外，上述收发模块601还可以是收发电路(例如可以包括接收电路和发送电路)，处理模块可以是处理电路。
需要指出的是，图6中的装置可以是前述实施例中的设备，也可以是芯片或者芯片***，例如：片上***(system on chip，SoC)。其中，收发模块可以是输入输出电路、通信接口；处理模块为该芯片上集成的处理器或者微处理器或者集成电路。在此不做限定。
如图7所示，通信装置700包括处理器710和接口电路720。处理器710和接口电路720之间相互耦合。可以理解的是，接口电路720可以为收发器或输入输出接口。可选的，通信装置700还可以包括存储器730，用于存储处理器710执行的指令或存储处理器710运行指令所需要的输入数据或存储处理器710运行指令后产生的数据。
当通信装置700用于实现上述方法实施例中的方法时，处理器710用于执行上述处理模块602的功能，接口电路720用于执行上述收发模块601的功能。
当上述通信装置为应用于终端设备的芯片时，该终端设备芯片实现上述方法实施例中终端设备的功能。该终端设备芯片从终端设备中的其它模块(如射频模块或天线)接收信息，该信息是网络设备发送给终端设备的；或者，该终端设备芯片向终端设备中的其它模块(如射频模块或天线)发送信息，该信息是终端设备发送给网络设备的。
当上述通信装置为应用于网络设备的芯片时，该网络设备芯片实现上述方法实施例中网络设备的功能。该网络设备芯片从网络设备中的其它模块(如射频模块或天线)接收信息，该信息是终端设备发送给网络设备的；或者，该网络设备芯片向网络设备中的其它模块(如射频模块或天线)发送信息，该信息是网络设备发送给终端设备的。
可以理解的是，本申请的实施例中的处理器可以是中央处理单元(central processing unit，CPU)，还可以是其它通用处理器、数字信号处理器(digital signal processor，DSP)、专用集成电路(application specific integrated circuit，ASIC)、现场可编程门阵列(field programmable gate array，FPGA)或者其它可编程逻辑器件、晶体管逻辑器件，硬件部件或者其任意组合。通用处理器可以是微处理器，也可以是任何常规的处理器。
本申请的实施例中的方法步骤可以通过硬件的方式来实现，也可以由处理器执行软件指令的方式来实现。软件指令可以由相应的软件模块组成，软件模块可以被存放于随机存取存储器(random access memory，RAM)、闪存、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)、寄存器、硬盘、移动硬盘、CD-ROM或者本领域熟知的任何其它形式的存储介质中。一种示例性的存储介质耦合至处理器，从而使处理器能够从该存储介质读取信息，且可向该存储介质写入信息。当然，存储介质也可以是处理器的组成部分。处理器和存储介质可以位于ASIC中。另外，该ASIC可以位于接入网设备或终端设备中。当然，处理器和存储介质也可以作为分立组件存在于接入网设备或终端设备中。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机程序或指令。在计算机上加载和执行所述计算机程序或指令时，全部或部分地执行本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其它可编程装置。所述计算机程序或指令可以存储在计算机可读存储介质中，或者通过所述计算机可读存储介质进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是集成一个或多个可用介质的服务器等数据存储设备。所述可用介质可以是磁性介质，例如，软盘、硬盘、磁带；也可以是光介质，例如，DVD；还可以是半导体介质，例如，固态硬盘(solid state disk，SSD)。
在本申请的各个实施例中，如果没有特殊说明以及逻辑冲突，不同的实施例之间的术语和/或描述具有一致性、且可以相互引用，不同的实施例中的技术特征根据其内在的逻辑关系可以组合形成新的实施例。
本申请中，“至少一个”是指一个或者多个，“多个”是指两个或两个以上。在本申请的文字描述中，字符“/”，一般表示前后关联对象是一种“或”的关系；在本申请的公式中，字符“/”，表示前后关联对象是一种“相除”的关系。
可以理解的是，在本申请的实施例中涉及的各种数字编号仅为描述方便进行的区分，并不用来限制本申请的实施例的范围。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。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (22)

  1. 一种通信方法，其特征在于，包括：
    终端设备接收来自网络设备的带宽部分BWP的配置信息，所述BWP包括第一带宽和第二带宽，所述第一带宽根据所述终端设备的射频带宽确定，所述第二带宽根据所述终端设备的基带带宽确定；
    所述终端设备通过所述BWP与所述网络设备通信。
  2. 根据权利要求1所述的方法，其特征在于，
    所述第一带宽用于指示所述终端设备接收或者发送信号所使用的频域资源的最大范围；所述第二带宽用于指示所述终端设备接收或者发送信号所使用的频域资源的最大传输带宽。
  3. 根据权利要求1或2所述的方法，其特征在于，
    所述第一带宽的大小小于或等于所述终端设备的最大射频带宽，所述第二带宽的大小小于或等于所述终端设备的最大基带带宽；或者，
    所述第一带宽的大小和所述第二带宽的大小均小于或等于所述终端设备的最大射频带宽、且均大于所述终端设备的最大基带带宽；或者，
    所述第一带宽的大小和所述第二带宽的大小均小于或等于所述终端设备的最大射频带宽、且均小于或等于所述终端设备的最大基带带宽；或者，
    所述第一带宽的大小和所述第二带宽的大小均大于所述终端设备的最大射频带宽、且均大于所述终端设备的最大基带带宽。
  4. 根据权利要求1至3中任一项所述的方法，其特征在于，
    所述BWP的配置信息至少包括所述第一带宽的频域位置，其中，所述第二带宽的频域位置根据所述第一带宽的频域位置确定。
  5. 根据权利要求4所述的方法，其特征在于，所述第二带宽的频域位置根据所述第一带宽的频域位置确定，包括：
    所述第二带宽的频域位置根据偏移量与所述第一带宽的频域位置确定，其中，所述偏移量为所述第二带宽的频域位置相对于所述第一带宽的频域位置的偏移量。
  6. 根据权利要求4或5所述的方法，其特征在于，所述第二带宽和所述第二带宽的N个频域位置确定的M个频域资源为所述BWP中的M个子BWP，其中，N、M为正整数。
  7. 根据权利要求1至6中任一项所述的方法，其特征在于，所述方法还包括：
    根据所述第一带宽和所述第二带宽确定物理下行共享信道PDSCH/物理上行共享信道PUSCH的频域资源分配。
  8. 根据权利要求7所述的方法，其特征在于，
    对于类型为type 0的频域资源分配，根据所述第一带宽和所述第二带宽确定所述BWP所包含的资源块组的个数，其中，所述BWP所包含的资源块的个数根据所述第一带宽确定，所述资源块组的大小根据所述第二带宽确定。
  9. 根据权利要求3至8中任一项所述的方法，其特征在于，
    所述终端设备的第一信道/第一信号的处理时延大于第二终端设备的第一信道/第一信号的处理时延，其中，所述终端设备的第一信道/第一信号的带宽大于所述终端设备的最 大基带带宽、且所述终端设备的第一信道/第一信号的带宽小于或等于所述终端设备的最大射频带宽，所述第二终端设备的第一信道/第一信号的带宽小于或等于所述第二终端设备的最大基带带宽、且所述第二终端设备的第一信道/第一信号的带宽小于或等于所述第二终端设备的最大射频带宽。
  10. 一种通信方法，其特征在于，包括：
    网络设备向终端设备发送带宽部分BWP的配置信息，所述BWP包括第一带宽和第二带宽，所述第一带宽根据所述终端设备的射频带宽确定，所述第二带宽根据所述终端设备的基带带宽确定；
    所述网络设备通过所述BWP与所述终端设备通信。
  11. 根据权利要求10所述的方法，其特征在于，
    所述第一带宽用于指示所述终端设备接收或者发送信号所使用的频域资源的最大范围；所述第二带宽用于指示所述终端设备接收或者发送信号所使用的频域资源的最大传输带宽。
  12. 根据权利要求10或11所述的方法，其特征在于，
    所述第一带宽的大小小于或等于所述终端设备的最大射频带宽，所述第二带宽的大小小于或等于所述终端设备的最大基带带宽；或者，
    所述第一带宽的大小和所述第二带宽的大小均小于或等于所述终端设备的最大射频带宽、且均大于所述终端设备的最大基带带宽；或者，
    所述第一带宽的大小和所述第二带宽的大小均小于或等于所述终端设备的最大射频带宽、且均小于或等于所述终端设备的最大基带带宽；或者，
    所述第一带宽的大小和所述第二带宽的大小均大于所述终端设备的最大射频带宽、且均大于所述终端设备的最大基带带宽。
  13. 根据权利要求10至12中任一项所述的方法，其特征在于，
    所述BWP的配置信息至少包括所述第一带宽的频域位置，其中，所述第二带宽的频域位置根据所述第一带宽的频域位置确定。
  14. 根据权利要求13所述的方法，其特征在于，所述第二带宽的频域位置根据所述第一带宽的频域位置确定，包括：
    所述第二带宽的频域位置根据偏移量与所述第一带宽的频域位置确定，其中，所述偏移量为所述第二带宽的频域位置相对于所述第一带宽的频域位置的偏移量。
  15. 根据权利要求13或14所述的方法，其特征在于，所述第二带宽和所述第二带宽的N个频域位置确定的M个频域资源为所述BWP中的M个子BWP，其中，N、M为正整数。
  16. 根据权利要求10至15中任一项所述的方法，其特征在于，所述方法还包括：
    根据所述第一带宽和所述第二带宽确定物理下行共享信道PDSCH/物理上行共享信道PUSCH的频域资源分配。
  17. 根据权利要求16所述的方法，其特征在于，
    对于类型为type 0的频域资源分配，根据所述第一带宽和所述第二带宽确定所述BWP所包含的资源块组的个数，其中，所述BWP所包含的资源块的个数根据所述第一带宽确定，所述资源块组的大小根据所述第二带宽确定。
  18. 根据权利要求12至17中任一项所述的方法，其特征在于，
    所述终端设备的第一信道/第一信号的处理时延大于第二终端设备的第一信道/第一信号的处理时延，其中，所述终端设备的第一信道/第一信号的带宽大于所述终端设备的最大基带带宽、且所述终端设备的第一信道/第一信号的带宽小于或等于所述终端设备的最大射频带宽，所述第二终端设备的第一信道/第一信号的带宽小于或等于所述第二终端设备的最大基带带宽、且所述第二终端设备的第一信道/第一信号的带宽小于或等于所述第二终端设备的最大射频带宽。
  19. 一种通信装置，其特征在于，包括用于执行如权利要求1至9或10至18中的任一项所述方法的模块。
  20. 一种通信装置，其特征在于，包括处理器和通信接口，所述通信接口用于接收来自所述通信装置之外的其它通信装置的信号并传输至所述处理器或将来自所述处理器的信号发送给所述通信装置之外的其它通信装置，所述处理器通过逻辑电路或执行代码指令用于实现如权利要求1至9或10至18中任一项所述的方法。
  21. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质存储有计算机程序，当所述计算机程序被运行时，实现如权利要求1至9或10至18中任一项所述的方法。
  22. 一种计算机程序产品，其特征在于，所述计算机程序产品包括：计算机程序代码，当所述计算机程序代码被运行时，实现如权利要求1至9或10至18中任一项所述的方法。
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CN108633046A (zh) * 2017-03-24 2018-10-09 华为技术有限公司 传输信号的方法和装置
CN110475292A (zh) * 2018-05-11 2019-11-19 华为技术有限公司 一种通信方法及装置
CN113170475A (zh) * 2021-03-17 2021-07-23 北京小米移动软件有限公司 一种带宽部分配置方法、带宽部分配置装置及存储介质
US20210314946A1 (en) * 2020-04-02 2021-10-07 Qualcomm Incorporated Bandwidth part (bwp) configuration for full duplex

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Publication number Priority date Publication date Assignee Title
CN108633046A (zh) * 2017-03-24 2018-10-09 华为技术有限公司 传输信号的方法和装置
CN110475292A (zh) * 2018-05-11 2019-11-19 华为技术有限公司 一种通信方法及装置
US20210314946A1 (en) * 2020-04-02 2021-10-07 Qualcomm Incorporated Bandwidth part (bwp) configuration for full duplex
CN113170475A (zh) * 2021-03-17 2021-07-23 北京小米移动软件有限公司 一种带宽部分配置方法、带宽部分配置装置及存储介质

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