WO2023115341A1 - 无线通信的方法、终端设备及网络设备 - Google Patents

无线通信的方法、终端设备及网络设备 Download PDF

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Publication number
WO2023115341A1
WO2023115341A1 PCT/CN2021/140126 CN2021140126W WO2023115341A1 WO 2023115341 A1 WO2023115341 A1 WO 2023115341A1 CN 2021140126 W CN2021140126 W CN 2021140126W WO 2023115341 A1 WO2023115341 A1 WO 2023115341A1
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Prior art keywords
terminal device
threshold
channels
network device
paths
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PCT/CN2021/140126
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English (en)
French (fr)
Inventor
邢金强
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Oppo广东移动通信有限公司
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Priority to PCT/CN2021/140126 priority Critical patent/WO2023115341A1/zh
Publication of WO2023115341A1 publication Critical patent/WO2023115341A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/52—TPC using AGC [Automatic Gain Control] circuits or amplifiers

Definitions

  • the present application relates to the field of communication technologies, and more specifically, to a wireless communication method, terminal equipment, and network equipment.
  • terminal devices can form beams through multiple channels, and use beams to communicate with network devices. If the terminal device uses all channels to communicate with the network device, the power consumption of the terminal device will increase.
  • the present application provides a wireless communication method, terminal equipment, and network equipment to solve the above problems.
  • a wireless communication method including: a terminal device selects a target path from multiple paths to communicate with a network device based on a first parameter, and the first parameter is used to indicate the actual transmit power and/or signal strength or quality received by said terminal device.
  • a wireless communication method including: a network device communicates with a terminal device through a second beam, the second beam corresponds to the first beam of the terminal device, and the target path corresponding to the second beam The determination is based on a first parameter, where the first parameter is used to indicate the actual transmit power of the terminal device and/or the strength or quality of a signal received by the terminal device.
  • a terminal device including: a selection unit, configured to select a target path from multiple paths to communicate with a network device based on a first parameter, and the first parameter is used to indicate the actual transmit power and/or signal strength or quality received by said terminal device.
  • a network device including: a communication unit, configured to communicate with a terminal device through a second beam, the second beam corresponds to the first beam of the terminal device, and the target path corresponding to the second beam The determination is based on a first parameter, where the first parameter is used to indicate the actual transmit power of the terminal device and/or the strength or quality of a signal received by the terminal device.
  • a terminal device including a memory and a processor, the memory is used to store a program, and the processor is used to invoke the program in the memory to execute the method according to the first aspect.
  • a network device including a memory and a processor, the memory is used to store a program, and the processor is used to invoke the program in the memory to execute the method described in the second aspect.
  • an apparatus including a processor, configured to call a program from a memory to execute the method described in the first aspect.
  • an apparatus including a processor, configured to call a program from a memory to execute the method described in the second aspect.
  • a ninth aspect provides a chip, including a processor, configured to call a program from a memory, so that a device installed with the chip executes the method described in the first aspect.
  • a chip including a processor, configured to call a program from a memory, so that a device installed with the chip executes the method described in the second aspect.
  • a computer-readable storage medium on which a program is stored, and the program causes a computer to execute the method described in the first aspect.
  • a computer-readable storage medium on which a program is stored, and the program causes a computer to execute the method described in the second aspect.
  • a thirteenth aspect provides a computer program product, including a program, the program causes a computer to execute the method described in the first aspect.
  • a fourteenth aspect provides a computer program product, including a program, the program causes a computer to execute the method described in the second aspect.
  • a fifteenth aspect provides a computer program, the computer program causes a computer to execute the method described in the first aspect.
  • a sixteenth aspect provides a computer program, the computer program causes a computer to execute the method described in the second aspect.
  • the embodiment of the present application provides a solution for a terminal device to select a target path, that is, the terminal device can select a target path based on a first parameter.
  • factors such as the actual transmit power of the terminal device and/or the signal strength or quality received by the terminal device may be considered, thereby helping to reduce the impact of path adjustment on communication performance.
  • Fig. 1 is an example diagram of a wireless communication system applied in the embodiment of the present application.
  • FIG. 2 is a schematic structural diagram of a terminal device provided by an embodiment of the present application.
  • FIG. 3 is a schematic diagram of a beam situation corresponding to different channel numbers provided by an embodiment of the present application.
  • Fig. 4 is a schematic flowchart of a wireless communication method provided by an embodiment of the present application.
  • FIG. 5 is a schematic flowchart of another wireless communication method provided by an embodiment of the present application.
  • Fig. 6 is a schematic flowchart of a network device indicating a beam to a terminal device provided by an embodiment of the present application.
  • Fig. 7 is a schematic block diagram of a terminal device provided by an embodiment of the present application.
  • Fig. 8 is a schematic block diagram of a network device provided by an embodiment of the present application.
  • Fig. 9 is a schematic structural diagram of a device provided by an embodiment of the present application.
  • FIG. 1 is a wireless communication system 100 applied in an embodiment of the present application.
  • the wireless communication system 100 may include a network device 110 and a terminal device 120 .
  • the network device 110 may be a device that communicates with the terminal device 120 .
  • the network device 110 can provide communication coverage for a specific geographical area, and can communicate with the terminal device 120 located in the coverage area.
  • Figure 1 exemplarily shows one network device and two terminals.
  • the wireless communication system 100 may include multiple network devices and each network device may include other numbers of terminal devices within the coverage area. The embodiment does not limit this.
  • the wireless communication system 100 may further include other network entities such as a network controller and a mobility management entity, which is not limited in this embodiment of the present application.
  • network entities such as a network controller and a mobility management entity, which is not limited in this embodiment of the present application.
  • the technical solutions of the embodiments of the present application can be applied to various communication systems, for example: the fifth generation (5th generation, 5G) system or new radio (new radio, NR), 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), etc.
  • the technical solutions provided in this application can also be applied to future communication systems, such as the sixth generation mobile communication system, and satellite communication systems, and so on.
  • the terminal equipment in the embodiment of the present application may also be referred to as user equipment (user equipment, UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station (mobile station, MS), mobile terminal (mobile Terminal, MT) ), remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device.
  • the terminal device in the embodiment of the present application may be a device that provides voice and/or data connectivity to users, and can be used to connect people, objects and machines, such as handheld devices with wireless connection functions, vehicle-mounted devices, and the like.
  • the terminal device in the embodiment of the present application can be mobile phone (mobile phone), tablet computer (Pad), notebook computer, palmtop computer, mobile internet device (mobile internet device, MID), wearable device, virtual reality (virtual reality, VR) equipment, augmented reality (augmented reality, AR) equipment, wireless terminals in industrial control, wireless terminals in self driving, wireless terminals in remote medical surgery, smart Wireless terminals in smart grid, wireless terminals in transportation safety, wireless terminals in smart city, wireless terminals in smart home, etc.
  • UE can be used to act as a base station.
  • a UE may act as a scheduling entity that provides sidelink signals between UEs in V2X or D2D, etc.
  • a cell phone and an automobile communicate with each other using sidelink signals. Communication between cellular phones and smart home devices without relaying communication signals through base stations.
  • the network device in this embodiment of the present application may be a device for communicating with a terminal device, and the network device may also be called an access network device or a wireless access network device, for example, the network device may be a base station.
  • the network device in this embodiment of the present application may refer to a radio access network (radio access network, RAN) node (or device) that connects a terminal device to a wireless network.
  • radio access network radio access network, RAN node (or device) that connects a terminal device to a wireless network.
  • the base station can broadly cover various names in the following, or replace with the following names, such as: Node B (NodeB), evolved base station (evolved NodeB, eNB), next generation base station (next generation NodeB, gNB), relay station, Access point, transmission point (transmitting and receiving point, TRP), transmission point (transmitting point, TP), primary station MeNB, secondary station SeNB, multi-standard radio (MSR) node, home base station, network controller, access node , wireless node, access point (access piont, AP), transmission node, transceiver node, base band unit (base band unit, BBU), remote radio unit (Remote Radio Unit, RRU), active antenna unit (active antenna unit) , AAU), radio head (remote radio head, RRH), central unit (central unit, CU), distributed unit (distributed unit, DU), positioning nodes, etc.
  • NodeB Node B
  • eNB evolved base station
  • next generation NodeB next generation base
  • a base station may be a macro base station, a micro base station, a relay node, a donor node, or the like, or a combination thereof.
  • a base station may also refer to a communication module, modem or chip used to be set in the aforementioned equipment or device.
  • the base station can also be a mobile switching center, a device that undertakes the function of a base station in D2D, vehicle-to-everything (V2X), machine-to-machine (M2M) communication, and a device in a 6G network.
  • V2X vehicle-to-everything
  • M2M machine-to-machine
  • Base stations can support networks of the same or different access technologies. The embodiment of the present application does not limit the specific technology and specific device form adopted by the network device.
  • Base stations can be fixed or mobile.
  • a helicopter or drone can be configured to act as a mobile base station, and one or more cells can move according to the location of the mobile base station.
  • a helicopter or drone may be configured to serve as a device in communication with another base station.
  • the network device in this embodiment of the present application may refer to a CU or a DU, or, the network device includes a CU and a DU.
  • a gNB may also include an AAU.
  • Network equipment and terminal equipment can be deployed on land, including indoors or outdoors, hand-held or vehicle-mounted; they can also be deployed on water; they can also be deployed on aircraft, balloons and satellites in the air.
  • the scenarios where the network device and the terminal device are located are not limited.
  • the communication device mentioned in this application may be a network device, or may also be a terminal device.
  • the first communication device is a network device
  • the second communication device is a terminal device.
  • the first communication device is a terminal device
  • the second communication device is a network device.
  • both the first communication device and the second communication device are network devices, or both are terminal devices.
  • the working frequency band of the millimeter wave is introduced, and the working frequency of the millimeter wave is usually above 10 GHz.
  • the spatial propagation loss of electromagnetic waves in the millimeter wave frequency band is very large, resulting in limited coverage of electromagnetic wave signals.
  • the terminal equipment In order to overcome the large space loss, the terminal equipment generally uses an antenna array composed of multiple antenna elements to form narrow beams to transmit and receive signals in the millimeter wave frequency band. These narrow beams have relatively strong directivity, as shown in Figure 1. Show.
  • the signal transmission and reception system of the terminal device may include multiple transmission paths (or channels) and/or multiple reception paths.
  • the multiple transmit paths may include multiple power amplifiers (power amplifier, PA) and antenna elements
  • the multiple receive paths may include multiple low noise amplifiers (low noise amplifier, LNA) and antenna elements.
  • the transmit path and/or the receive path are referred to as paths for short below.
  • beams 1 to 6 shown in FIG. 2 may be transmit beams or receive beams.
  • a terminal device includes 4 transmit channels and 4 receive channels (such as channels 1 to 4), and the 4 transmit channels can correspond to (or generate) 6 transmit beams (or uplink filters or uplink filter parameters), 4 Each receiving path may correspond to 6 receiving beams (or downlink filters or downlink filtering parameters).
  • the more channels the terminal device includes (or the more antenna elements) the more beams the terminal device can form, and the narrower the formed beams are, that is, the greater the beamforming gain.
  • the narrower the beam the greater the peak effective isotropic radiated power (peak EIRP) of the terminal equipment.
  • peak EIRP represents the maximum peak power that a terminal device can achieve in a certain direction.
  • the larger the value the greater the uplink and downlink coverage that a terminal device can achieve.
  • each antenna element is connected to PA, LNA, phase shifter and other components, and one channel works, which means that the PA, LNA, phase shifter and other components on the channel need to work together, and these Working together, the devices generate significant power dissipation.
  • the increase in power consumption will accelerate the exhaustion of the power of the terminal device, and at the same time generate a large amount of heat, so that the terminal device cannot continue to work due to overheating.
  • the terminal equipment only uses some channels to work when it is not necessary, that is to say, the terminal equipment does not have to keep all the channels in the working state, but can select some or all of the channels as needed Work. By reducing the number of working channels, the power consumption and heat generation of the terminal equipment can be reduced. However, there is currently no clear solution on how to select the number of channels for the terminal device.
  • the terminal device can form 6 beams, that is, beam 1 to beam 6 .
  • the number of beams that the terminal device can form is reduced to three, that is, beam a, beam b, and beam c.
  • the number of beams generated by 2 channels is less, and the beamforming gain is reduced, so that the uplink and downlink coverage of terminal equipment is reduced. Therefore, when reducing the number of channels, it is necessary to consider the impact of the number of channels on the communication performance of the terminal device.
  • the signal power transmitted by the terminal equipment is related to the output power Pout of the PA and the beamforming gain GainAnt.
  • the greater the output power of the PA the greater the transmit power of the terminal equipment; the greater the GainAnt, the greater the transmit power of the terminal equipment.
  • the terminal equipment can achieve it in two ways. One way is that the terminal device can increase the output power of the PA to reduce the number of transmission paths (that is, reduce the shaping gain of the antenna). Another way is that the terminal equipment can reduce the output power of the PA and increase the number of transmission channels (that is, increase the shaping gain of the antenna). In the above two methods, reducing the number of transmission channels can lead to lower terminal power consumption and heat generation.
  • the terminal device can reduce the number of transmission paths and increase the output power of the PA, thereby reducing power consumption and heat generation of the terminal device.
  • the transmit power and interference of the terminal device will change.
  • the terminal equipment in the central area of the cell requires relatively small transmission power, and the interference caused by neighboring cells is relatively small.
  • it is more suitable to reduce the number of transmission paths that is, reducing the number of transmission paths can Ensure the communication quality of terminal equipment.
  • the required transmit power is relatively large, and adjacent cells cause a lot of interference to it, so it is not suitable to reduce the number of transmit channels at this time.
  • the communication quality of the terminal equipment cannot be guaranteed by reducing the number of transmission channels. Therefore, it is more suitable for the terminal equipment to ensure the communication quality by increasing the number of transmission channels.
  • the number of channels may be selected by considering factors such as actual transmit power and/or interference of the terminal device.
  • the actual transmit power of the terminal device may be the target power described above. The solution of the embodiment of the present application will be described below with reference to FIG. 4 .
  • step S410 the terminal device selects a target path from multiple paths based on the first parameter to communicate with the network device.
  • the terminal device in this embodiment of the application may be a millimeter wave terminal.
  • the terminal device may also be an electromagnetic wave terminal of other frequency bands.
  • the multiple paths may be paths supported by the terminal device, or the number of the multiple paths is the maximum number of paths supported by the terminal device.
  • the multiple paths may include a transmit path, or the multiple paths may include a receive path, or the multiple paths may include both a transmit path and a receive path.
  • the target path may include a transmit path, or the target path may include a receive path, or the target path may include a transmit path and a receive path.
  • the selection method of the transmit path and the receive path is similar, and the transmit path and the receive path are collectively referred to as paths for description below.
  • a terminal device may select a target transmission path from a plurality of paths. For another example, the terminal device may select a target receiving path from multiple paths. For another example, the terminal device may select a target transmission path and a target reception path from multiple paths.
  • adjusting the number of transmit channels will have an impact on the number of receive channels, and similarly, adjusting the number of receive channels will have an impact on the number of transmit channels. For example, when the number of transmit paths is reduced, the number of receive paths is correspondingly reduced. Taking FIG. 3 as an example, when the terminal device selects 4 transmission paths, correspondingly, 4 reception paths are selected. When the terminal equipment selects 2 transmit paths, correspondingly, 2 receive paths are selected. Therefore, the terminal device can simultaneously select the transmit path and the receive path based on the first parameter.
  • the first parameter may be used to indicate one or more of the following parameters: actual transmit power of the terminal device, signal quality received by the terminal device, and signal strength received by the terminal device.
  • the signal quality received by the terminal device may be indicated by reference signal receiving quality (reference signal receiving quality, RSRQ) and/or signal-to-interference-noise ratio (signal-to jamming and noise ratio, SINR).
  • the signal strength received by the terminal device may be indicated by a reference signal receiving power (RSRP).
  • RSRP reference signal receiving power
  • the first parameter may include the actual transmit power and/or transmit power headroom of the terminal device.
  • Example 1 The first parameter is transmit power
  • the actual transmit power of the terminal device may be simply referred to as the transmit power of the terminal device.
  • the transmit power of the terminal device may be the maximum transmit power Pcmax configurable by the terminal device, or may be the transmit power TxPow scheduled by the network device.
  • the transmit power of the terminal device may be the smaller value of Pcmax and TxPow. For example, if the transmit power scheduled by the network device is less than the maximum transmit power of the terminal device, the transmit power of the terminal device is the transmit power scheduled by the network device; if the transmit power scheduled by the network device is greater than the maximum transmit power of the terminal device, the terminal device The transmit power of is the maximum transmit power of the terminal equipment.
  • the target path may be selected based on the transmit power of the terminal device. If the transmit power of the terminal device is relatively high, the terminal device can select a larger number of paths; if the transmit power of the terminal device is small, the terminal device can select a relatively small number of paths.
  • the terminal device may select the target path based on the transmit power of the terminal device and the first threshold (or referred to as a threshold). That is to say, the target path may be determined based on the relationship between the transmit power headroom and the first threshold.
  • the number of the first threshold may be one or more, that is, the first threshold may include one threshold, or may include multiple thresholds.
  • the following describes respectively the situations in which the terminal device reduces the number of paths and increases the number of paths.
  • the first threshold is the threshold for reducing the number of paths
  • the terminal device may reduce the number of paths.
  • the first threshold may also have a corresponding relationship with the number of paths.
  • the first threshold has a corresponding relationship with n paths.
  • the terminal device can select n channels, that is, the terminal device reduces the number of channels from m to n, where m is the number of channels currently used by the terminal device, and m is greater than n.
  • the multiple thresholds include threshold 1 and threshold 2, and threshold 1 is higher than threshold 2.
  • the terminal device can reduce the number of paths; when the transmit power of the terminal device is lower than threshold 2, the terminal device can continue to reduce the number of paths. In other words, the number of channels of the terminal equipment can be changed multiple times.
  • Multiple thresholds may have corresponding relationships with multiple channel quantities.
  • the terminal device may select the target path based on the correspondence between the multiple thresholds and the multiple path quantities, as well as the transmit power of the terminal device. Wherein, the number of the target path is one of the numbers of multiple paths.
  • the threshold 1 has a corresponding relationship with the number of n channels
  • the threshold 2 has a corresponding relationship with the number of k channels, where n is greater than k.
  • the number of target paths selected by the terminal device is one of n and k.
  • the terminal device can select n channels, that is, the terminal device can reduce the number of channels from m to n, where m is greater than n, and m is the number of channels currently used by the terminal device;
  • the terminal device can select k channels, that is, the terminal device can reduce the number of channels from n to k.
  • the first threshold may be predefined in the protocol, or may be independently determined by the terminal device, or may be configured by the network device for the terminal device. If the first threshold is configured by the network device, the network device can pass radio resource control (radio resource control, RRC) signaling, media access control (media access control, MAC) signaling and downlink control information (downlink control information, DCI) ) in one or more ways.
  • RRC radio resource control
  • media access control media access control
  • MAC media access control information
  • DCI downlink control information
  • the first threshold is the threshold for increasing the number of channels
  • the terminal device may increase the number of paths.
  • the first threshold may also have a corresponding relationship with the number of paths.
  • the first threshold has a corresponding relationship with y channels.
  • the terminal device can select y channels, that is, the terminal device increases the number of channels from x to y, where x is the number of channels currently used by the terminal device, and x is less than y.
  • the multiple thresholds include threshold 3 and threshold 4, and threshold 3 is lower than threshold 4.
  • the terminal device can increase the number of paths; when the transmit power of the terminal device is higher than the threshold 4, the terminal device can continue to increase the number of paths. In other words, the number of channels of the terminal equipment can be changed multiple times.
  • Multiple thresholds may have corresponding relationships with multiple channel quantities.
  • the terminal device may select the target path based on the correspondence between the multiple thresholds and the multiple path quantities, as well as the transmit power of the terminal device. Wherein, the number of the target path is one of the numbers of multiple paths.
  • the threshold 3 has a corresponding relationship with y channels
  • the threshold 4 has a corresponding relationship with z channels, where y is smaller than z.
  • the number of target paths selected by the terminal device is one of y and z.
  • the terminal device can select y channels, that is, the terminal device can increase the number of channels from x to y, where x is less than y, and x is the number of channels currently used by the terminal device; when When the transmit power of the terminal device is higher than the threshold 4, the terminal device can select the number of z channels, that is, the terminal device can increase the number of channels from y to z.
  • the first threshold may be predefined in the protocol, or may be independently determined by the terminal device, or may be configured by the network device for the terminal device. If the first threshold is configured by the network device, the network device may configure it in one or more ways of RRC signaling, MAC signaling and DCI.
  • the threshold for increasing the number of paths and the threshold for reducing the number of paths may be the same or different. Taking the first threshold as an example for illustration, it can be understood that this method is also applicable to the case where the first threshold is multiple thresholds, and for the sake of brevity, details are not described here.
  • threshold x If the threshold for increasing the number of channels is the same as the threshold for reducing the number of channels, for example, both are threshold x.
  • the terminal device selects n channels, that is, the terminal device can reduce the number of channels from m to n; when the transmit power of the terminal device is higher than the threshold x, the terminal device selects There are m thresholds, that is, the terminal device can increase the number of paths from n to m.
  • the threshold for increasing the number of channels is different from the threshold for reducing the number of channels, for example, the threshold for increasing the number of channels corresponds to threshold a, and the threshold for reducing the number of channels corresponds to threshold b.
  • the terminal device selects n channels.
  • the number that is, the terminal device can reduce the number of channels from m to n.
  • the terminal device selects the number of m channels, that is, the terminal device can increase the number of channels from n to m.
  • the first parameter is the transmit power headroom
  • the transmit power headroom may refer to the difference between the configurable maximum transmit power Pcmax of the terminal device and the terminal transmit power TxPow scheduled by the network device.
  • the terminal device can select the target path based on the transmit power headroom. If the transmission power headroom is small, the terminal device may select a larger number of paths; if the transmission power headroom is large, the terminal device may select a smaller number of paths.
  • the terminal device may select the target path based on the transmit power headroom and the first threshold. That is to say, the target path may be determined based on the relationship between the transmit power headroom and the first threshold.
  • the number of the first threshold may be one or more, that is, the first threshold may include one threshold, or may include multiple thresholds.
  • the following describes respectively the situations in which the terminal device reduces the number of paths and increases the number of paths.
  • the first threshold is the threshold for reducing the number of paths
  • the terminal device may reduce the number of paths.
  • the first threshold may also have a corresponding relationship with the number of paths.
  • the first threshold has a corresponding relationship with n channels.
  • the terminal device can select n channels, that is, the terminal device reduces the number of channels from m to n, where m is the number of channels currently used by the terminal device, and m is greater than n .
  • the multiple thresholds include threshold 1 and threshold 2, and threshold 1 is lower than threshold 2.
  • the terminal device can reduce the number of channels; when the transmit power headroom of the terminal device is higher than threshold 2, the terminal device can continue to reduce the number of channels. In other words, the number of channels of the terminal equipment can be changed multiple times.
  • Multiple thresholds may have corresponding relationships with multiple channel quantities.
  • the terminal device may select the target channel based on the correspondence between multiple thresholds and multiple channel quantities, and the transmit power headroom of the terminal device. Wherein, the number of the target path is one of the numbers of multiple paths.
  • the threshold 1 has a corresponding relationship with the number of n channels
  • the threshold 2 has a corresponding relationship with the number of k channels, where n is greater than k.
  • the number of target paths selected by the terminal device is one of n and k.
  • the terminal device can select n channels, that is, the terminal device can reduce the number of channels from m to n, m is greater than n, and m is the number of channels currently used by the terminal device ;
  • the terminal device can select k channels, that is, the terminal device can reduce the number of channels from n to k.
  • the first threshold may be predefined in the protocol, or may be independently determined by the terminal device, or may be configured by the network device for the terminal device. If the first threshold is configured by the network device, the network device may configure it in one or more ways of RRC signaling, MAC signaling and DCI.
  • the first threshold is the threshold for increasing the number of channels
  • the terminal device may increase the number of paths.
  • the first threshold may also have a corresponding relationship with the number of paths.
  • the first threshold has a corresponding relationship with y channels.
  • the terminal device can select y channels, that is, the terminal device increases the number of channels from x to y, where x is the number of channels currently used by the terminal device, and x is less than y .
  • the multiple thresholds include threshold 3 and threshold 4, and threshold 3 is higher than threshold 4.
  • the terminal device can increase the number of channels; when the transmit power headroom of the terminal device is lower than the threshold 4, the terminal device can continue to increase the number of channels. In other words, the number of channels of the terminal equipment can be changed multiple times.
  • Multiple thresholds may have corresponding relationships with multiple channel quantities.
  • the terminal device may select the target channel based on the correspondence between multiple thresholds and multiple channel quantities, and the transmit power headroom of the terminal device. Wherein, the number of the target path is one of the numbers of multiple paths.
  • the threshold 3 has a corresponding relationship with y channels
  • the threshold 4 has a corresponding relationship with z channels, where y is smaller than z.
  • the number of target paths selected by the terminal device is one of y and z.
  • the terminal device can select y channels, that is, the terminal device can increase the number of channels from x to y, where x is less than y, and x is the number of channels currently used by the terminal device ;
  • the terminal device can select the number of z channels, that is, the terminal device can increase the number of channels from y to z.
  • the first threshold may be predefined in the protocol, or may be independently determined by the terminal device, or may be configured by the network device for the terminal device. If the first threshold is configured by the network device, the network device may configure it in one or more ways of RRC signaling, MAC signaling and DCI.
  • the threshold for increasing the number of paths and the threshold for reducing the number of paths may be the same or different. Taking the first threshold as an example for illustration, it can be understood that this method is also applicable to the case where the first threshold is multiple thresholds, and for the sake of brevity, details are not described here.
  • threshold x If the threshold for increasing the number of channels is the same as the threshold for reducing the number of channels, for example, both are threshold x.
  • the terminal device selects n channels, that is, the terminal device can reduce the number of channels from m to n; when the transmit power margin of the terminal device is lower than the threshold x , the terminal device selects m thresholds, that is, the terminal device can increase the number of paths from n to m.
  • the threshold for increasing the number of channels is different from the threshold for reducing the number of channels, for example, the threshold for increasing the number of channels corresponds to threshold a, and the threshold for reducing the number of channels corresponds to threshold b.
  • the terminal device selects The number of channels is n, that is, the terminal device can reduce the number of channels from m to n.
  • the terminal device selects the number of m channels, that is, the terminal device can increase the number of channels from n to m.
  • Example 3 The first parameter is RSRP
  • the terminal device can select the target path based on RSRP. If the RSRP is small, the terminal device can select a larger number of paths; if the RSRP is large, the terminal device can select a smaller number of paths.
  • the terminal device may select the target path based on the RSRP of the signal received by the terminal device and the first threshold. That is to say, the target path may be determined based on the relationship between the RSRP of the signal received by the terminal device and the first threshold.
  • the number of the first threshold may be one or more, that is, the first threshold may include one threshold, or may include multiple thresholds.
  • the following describes respectively the situations in which the terminal device reduces the number of paths and increases the number of paths.
  • the first threshold is the threshold for reducing the number of paths
  • the terminal device may reduce the number of paths.
  • the first threshold may also have a corresponding relationship with the number of paths.
  • the first threshold has a corresponding relationship with n paths.
  • the terminal device can select n channels, that is, the terminal device reduces the number of channels from m to n, where m is the number of channels currently used by the terminal device, and m is greater than n .
  • the multiple thresholds include threshold 1 and threshold 2, and threshold 1 is lower than threshold 2.
  • the terminal device can reduce the number of paths; when the RSRP is higher than the threshold 2, the terminal device can continue to reduce the number of paths. In other words, the number of channels of the terminal equipment can be changed multiple times.
  • Multiple thresholds may have corresponding relationships with multiple channel quantities.
  • the terminal device may select the target path based on the correspondence between the multiple thresholds and the multiple path quantities, and the RSRP of the signal received by the terminal device. Wherein, the number of the target path is one of the numbers of multiple paths.
  • the threshold 1 has a corresponding relationship with the number of n channels
  • the threshold 2 has a corresponding relationship with the number of k channels, where n is greater than k.
  • the number of target paths selected by the terminal device is one of n and k.
  • the terminal device can select n channels, that is, the terminal device can reduce the number of channels from m to n, m is greater than n, and m is the number of channels currently used by the terminal device; when the RSRP is higher than the threshold
  • the terminal device can select the number of k channels, that is, the terminal device can reduce the number of channels from n to k.
  • the first threshold may be predefined in the protocol, or may be independently determined by the terminal device, or may be configured by the network device for the terminal device. If the first threshold is configured by the network device, the network device may configure it in one or more ways of RRC signaling, MAC signaling and DCI.
  • the first threshold is the threshold for increasing the number of channels
  • the terminal device may increase the number of paths.
  • the first threshold may also have a corresponding relationship with the number of paths.
  • the first threshold has a corresponding relationship with y channels.
  • the terminal device can select y channels, that is, the terminal device increases the number of channels from x to y, where x is the number of channels currently used by the terminal device, and x is less than y.
  • the multiple thresholds include threshold 3 and threshold 4, and threshold 3 is higher than threshold 4.
  • the terminal device can increase the number of paths; when the RSRP is lower than the threshold 4, the terminal device can continue to increase the number of paths. In other words, the number of channels of the terminal equipment can be changed multiple times.
  • Multiple thresholds may have corresponding relationships with multiple channel quantities.
  • the terminal device may select the target path based on the correspondence between the multiple thresholds and the multiple path quantities, and the RSRP of the signal received by the terminal device. Wherein, the quantity of the target path is one of the quantities of multiple paths.
  • the threshold 3 has a corresponding relationship with y channels
  • the threshold 4 has a corresponding relationship with z channels, where y is smaller than z.
  • the number of target paths selected by the terminal device is one of y and z.
  • the terminal device can select y channels, that is, the terminal device can increase the number of channels from x to y, where x is less than y, and x is the number of channels currently used by the terminal device; when the RSRP is lower than the threshold
  • the terminal device can select the number of z channels, that is, the terminal device can increase the number of channels from y to z.
  • the first threshold may be predefined in the protocol, or may be independently determined by the terminal device, or may be configured by the network device for the terminal device. If the first threshold is configured by the network device, the network device may configure it in one or more ways of RRC signaling, MAC signaling and DCI.
  • the threshold for increasing the number of paths and the threshold for reducing the number of paths may be the same or different. Taking the first threshold as an example for illustration, it can be understood that this method is also applicable to the case where the first threshold is multiple thresholds, and for the sake of brevity, details are not described here.
  • threshold x If the threshold for increasing the number of channels is the same as the threshold for reducing the number of channels, for example, both are threshold x.
  • the terminal device selects n channels, that is, the terminal device can reduce the number of channels from m to n; when the RSRP of the signal received by the terminal device is lower than the threshold x , the terminal device selects m thresholds, that is, the terminal device can increase the number of paths from n to m.
  • the threshold for increasing the number of paths is different from the threshold for reducing the number of paths, for example, the threshold for increasing the number of paths corresponds to threshold a, and the threshold for reducing the number of paths corresponds to threshold b.
  • the terminal device chooses The number of channels is n, that is, the terminal device can reduce the number of channels from m to n.
  • the terminal device selects the number of m channels, that is, the terminal device can increase the number of channels from n to m.
  • Example 4 The first parameter is RSRQ
  • the terminal device can select the target path based on the RSRQ. If the RSRQ is small, the terminal device can select a larger number of paths; if the RSRQ is large, the terminal device can select a smaller number of paths.
  • the terminal device may select the target path based on the RSRQ of the signal received by the terminal device and the first threshold. That is to say, the target path can be determined based on the relationship between the RSRQ of the signal received by the terminal device and the first threshold.
  • the number of the first threshold may be one or more, that is, the first threshold may include one threshold, or may include multiple thresholds.
  • the following describes respectively the situations in which the terminal device reduces the number of paths and increases the number of paths.
  • the first threshold is the threshold for reducing the number of paths
  • the terminal device may reduce the number of paths.
  • the first threshold may also have a corresponding relationship with the number of paths.
  • the first threshold has a corresponding relationship with n channels.
  • the terminal device can select n channels, that is, the terminal device reduces the number of channels from m to n, where m is the number of channels currently used by the terminal device, and m is greater than n .
  • the multiple thresholds include threshold 1 and threshold 2, and threshold 1 is lower than threshold 2.
  • the terminal device can reduce the number of paths; when the RSRQ is higher than the threshold 2, the terminal device can continue to reduce the number of paths. In other words, the number of channels of the terminal equipment can be changed multiple times.
  • Multiple thresholds may have corresponding relationships with multiple channel quantities.
  • the terminal device may select the target channel based on the correspondence between the multiple thresholds and the multiple channel quantities, and the RSRQ of the signal received by the terminal device. Wherein, the number of the target path is one of the numbers of multiple paths.
  • the threshold 1 has a corresponding relationship with the number of n channels
  • the threshold 2 has a corresponding relationship with the number of k channels, where n is greater than k.
  • the number of target paths selected by the terminal device is one of n and k.
  • the terminal device can select n channels, that is, the terminal device can reduce the number of channels from m to n, where m is greater than n, and m is the number of channels currently used by the terminal device; when RSRQ is higher than the threshold
  • the terminal device can select the number of k channels, that is, the terminal device can reduce the number of channels from n to k.
  • the first threshold may be predefined in the protocol, or may be independently determined by the terminal device, or may be configured by the network device for the terminal device. If the first threshold is configured by the network device, the network device may configure it in one or more ways of RRC signaling, MAC signaling and DCI.
  • the first threshold is the threshold for increasing the number of channels
  • the terminal device may increase the number of paths.
  • the first threshold may also have a corresponding relationship with the number of paths.
  • the first threshold has a corresponding relationship with y channels.
  • the terminal device can select y channels, that is, the terminal device increases the number of channels from x to y, where x is the number of channels currently used by the terminal device, and x is smaller than y.
  • the multiple thresholds include threshold 3 and threshold 4, and threshold 3 is higher than threshold 4.
  • the terminal device can increase the number of paths; when the RSRQ is lower than the threshold 4, the terminal device can continue to increase the number of paths. In other words, the number of channels of the terminal equipment can be changed multiple times.
  • Multiple thresholds may have corresponding relationships with multiple channel quantities.
  • the terminal device may select the target channel based on the correspondence between the multiple thresholds and the multiple channel quantities, and the RSRQ of the signal received by the terminal device. Wherein, the number of the target path is one of the numbers of multiple paths.
  • the threshold 3 has a corresponding relationship with y channels
  • the threshold 4 has a corresponding relationship with z channels, where y is smaller than z.
  • the number of target paths selected by the terminal device is one of y and z.
  • the terminal device can select y channels, that is, the terminal device can increase the number of channels from x to y, where x is less than y, and x is the number of channels currently used by the terminal device; when RSRQ is lower than the threshold
  • the terminal device can select the number of z channels, that is, the terminal device can increase the number of channels from y to z.
  • the first threshold may be predefined in the protocol, or may be independently determined by the terminal device, or may be configured by the network device for the terminal device. If the first threshold is configured by the network device, the network device may configure it in one or more ways of RRC signaling, MAC signaling and DCI.
  • the threshold for increasing the number of paths and the threshold for reducing the number of paths may be the same or different. Taking the first threshold as an example for illustration, it can be understood that this method is also applicable to the case where the first threshold is multiple thresholds, and for the sake of brevity, details are not described here.
  • threshold x If the threshold for increasing the number of channels is the same as the threshold for reducing the number of channels, for example, both are threshold x.
  • the terminal device selects n channels, that is, the terminal device can reduce the number of channels from m to n; when the RSRQ of the signal received by the terminal device is lower than the threshold x , the terminal device selects m thresholds, that is, the terminal device can increase the number of paths from n to m.
  • the threshold for increasing the number of channels is different from the threshold for reducing the number of channels, for example, the threshold for increasing the number of channels corresponds to threshold a, and the threshold for reducing the number of channels corresponds to threshold b.
  • the terminal device selects The number of channels is n, that is, the terminal device can reduce the number of channels from m to n.
  • the terminal device selects m channels, that is, the terminal device can increase the number of channels from n to m.
  • the first parameter is SINR
  • the end device can select the target channel based on the SINR. If the SINR is smaller, the terminal device can select a larger number of paths; if the SINR is larger, the terminal device can select a smaller number of paths.
  • the terminal device may select the target path based on the SINR of the signal received by the terminal device and the first threshold. That is to say, the target path may be determined based on the relationship between the SINR of the signal received by the terminal device and the first threshold.
  • the number of the first threshold may be one or more, that is, the first threshold may include one threshold, or may include multiple thresholds.
  • the following describes respectively the situations in which the terminal device reduces the number of paths and increases the number of paths.
  • the first threshold is the threshold for reducing the number of paths
  • the terminal device may reduce the number of paths.
  • the first threshold may also have a corresponding relationship with the number of paths.
  • the first threshold has a corresponding relationship with n channels.
  • the terminal device can select n channels, that is, the terminal device reduces the number of channels from m to n, where m is the number of channels currently used by the terminal device, and m is greater than n .
  • the multiple thresholds include threshold 1 and threshold 2, and threshold 1 is lower than threshold 2.
  • the terminal device can reduce the number of paths; when the SINR is higher than the threshold 2, the terminal device can continue to reduce the number of paths. In other words, the number of channels of the terminal equipment can be changed multiple times.
  • Multiple thresholds may have corresponding relationships with multiple channel quantities.
  • the terminal device may select the target channel based on the correspondence between multiple thresholds and multiple channel quantities, and the SINR of the signal received by the terminal device. Wherein, the number of the target path is one of the numbers of multiple paths.
  • the threshold 1 has a corresponding relationship with the number of n channels
  • the threshold 2 has a corresponding relationship with the number of k channels, where n is greater than k.
  • the number of target paths selected by the terminal device is one of n and k.
  • the terminal device can select n channels, that is, the terminal device can reduce the number of channels from m to n, m is greater than n, and m is the number of channels currently used by the terminal device; when the SINR is higher than the threshold
  • the terminal device can select the number of k channels, that is, the terminal device can reduce the number of channels from n to k.
  • the first threshold may be predefined in the protocol, or may be independently determined by the terminal device, or may be configured by the network device for the terminal device. If the first threshold is configured by the network device, the network device may configure it in one or more ways of RRC signaling, MAC signaling and DCI.
  • the first threshold is the threshold for increasing the number of channels
  • the terminal device may increase the number of paths.
  • the first threshold may also have a corresponding relationship with the number of paths.
  • the first threshold has a corresponding relationship with y channels.
  • the terminal device can select y channels, that is, the terminal device increases the number of channels from x to y, where x is the number of channels currently used by the terminal device, and x is less than y.
  • the multiple thresholds include threshold 3 and threshold 4, and threshold 3 is higher than threshold 4.
  • the terminal device can increase the number of paths; when the SINR is lower than the threshold 4, the terminal device can continue to increase the number of paths. In other words, the number of channels of the terminal equipment can be changed multiple times.
  • Multiple thresholds may have corresponding relationships with multiple channel quantities.
  • the terminal device may select the target channel based on the correspondence between multiple thresholds and multiple channel quantities, and the SINR of the signal received by the terminal device. Wherein, the number of the target path is one of the numbers of multiple paths.
  • the threshold 3 has a corresponding relationship with y channels
  • the threshold 4 has a corresponding relationship with z channels, where y is smaller than z.
  • the number of target paths selected by the terminal device is one of y and z.
  • the terminal device can select y channels, that is, the terminal device can increase the number of channels from x to y, where x is less than y, and x is the number of channels currently used by the terminal device; when the SINR is lower than the threshold
  • the terminal device can select the number of z channels, that is, the terminal device can increase the number of channels from y to z.
  • the first threshold may be predefined in the protocol, or may be independently determined by the terminal device, or may be configured by the network device for the terminal device. If the first threshold is configured by the network device, the network device may configure it in one or more ways of RRC signaling, MAC signaling and DCI.
  • the threshold for increasing the number of paths and the threshold for reducing the number of paths may be the same or different. Taking the first threshold as an example for illustration, it can be understood that this method is also applicable to the case where the first threshold is multiple thresholds, and for the sake of brevity, details are not described here.
  • the threshold for increasing the number of channels is the same as the threshold for reducing the number of channels, for example, both are threshold x.
  • the terminal device selects n channels, that is, the terminal device can reduce the number of channels from m to n; when the SINR of the signal received by the terminal device is lower than the threshold x , the terminal device selects m thresholds, that is, the terminal device can increase the number of paths from n to m.
  • the threshold for increasing the number of channels is different from the threshold for reducing the number of channels, for example, the threshold for increasing the number of channels corresponds to threshold a, and the threshold for reducing the number of channels corresponds to threshold b.
  • the terminal device selects The number of channels is n, that is, the terminal device can reduce the number of channels from m to n.
  • the terminal device selects the number of m channels, that is, the terminal device can increase the number of channels from n to m.
  • the first parameter may be one or more of the several examples described above.
  • the transmitting beam and receiving beam of the terminal equipment are the same, when the number of channels decreases, the beam width will become wider, which will weaken the ability of the terminal equipment to suppress the interference in the non-peak direction, and the signal-to-noise ratio of the received signal of the terminal equipment will deteriorate. Therefore, when the transmitting beam and the receiving beam of the terminal device are the same beam, the adjustment of the transmitting beam of the terminal device will affect the receiving performance.
  • the terminal device After the terminal device adjusts the number of channels, the number of beams of the terminal device will also change. Still taking Figure 3 as an example, when a terminal device uses 4 channels to communicate with network devices, the terminal device can generate 6 beams (beam 1 to beam 6), and when the terminal device uses 2 channels to communicate with network devices, the terminal device can generate 6 beams (beam 1 to beam 6). 3 beams can be generated (beam a, beam b and beam c). After the beam changes, there is currently no clear solution as to which beam the terminal device should use to communicate with the network device. For example, before reducing the number of channels, the terminal device uses beam 3 to communicate with the network device. After reducing the number of channels, the terminal device should choose which beam among beam a, beam b, and beam c to communicate with the network device. solved problem.
  • the terminal device can communicate with the network device on the first beam.
  • the first beam is a beam generated by the target path.
  • the network device may communicate with the terminal device on the second beam, where the second beam corresponds to the first beam of the terminal device. If the first beam is a transmit beam, the second beam is a receive beam corresponding to the first beam. If the first beam is a receive beam, the second beam is a transmit beam corresponding to the first beam.
  • the first beam may be determined based on one or more of the following information: correspondence between beams generated by different numbers of paths; signal quality or strength received by the receiving beam; correspondence between receiving beams and transmitting beams; or beams indicated by network devices.
  • correspondence between beams generated by different numbers of paths based on one or more of the following information: correspondence between beams generated by different numbers of paths; signal quality or strength received by the receiving beam; correspondence between receiving beams and transmitting beams; or beams indicated by network devices.
  • the terminal device may determine the first beam based on the correspondence between beams generated by different numbers of paths. After path adjustment, the terminal device can directly complete the beam selection according to the mapping relationship between the beams before and after the adjustment.
  • the beams shown in Table 1 may be transmit beams or receive beams.
  • Beam 1 Beam 2 Beam 3
  • Beam 4 Beam 5 Beam 6 2-channel beam Beam a Beam b beam c
  • beam 1 and beam 2 correspond to beam a
  • beam 3 and beam 4 correspond to beam b
  • beam 5 and beam 6 correspond to beam c. If the terminal device uses beam 1 or beam 2 to communicate with the network device before path adjustment, then after path adjustment, the terminal device can use beam a to communicate with the network device. If the terminal device uses beam 3 or beam 4 to communicate with the network device before the path adjustment, then after the path adjustment, the terminal device can use beam b to communicate with the network device. If the terminal device uses beam 5 or beam 6 to communicate with the network device before path adjustment, then after path adjustment, the terminal device can use beam c to communicate with the network device.
  • the correspondence between beams shown in Table 1 may be a correspondence between transmit beams, or may be a correspondence between receive beams, which is not specifically limited in this embodiment of the present application. That is to say, beams 1 to 6 in Table 1 may be transmit beams or receive beams, and beam a, beam b, and beam c may be transmit beams or receive beams.
  • the terminal device may determine the first beam based on the signal quality or strength received by the receiving beam.
  • the terminal device can use different beams to measure the strength or quality of the downlink signal, and select a target beam.
  • the target beam may be the beam with the best signal strength and/or signal quality.
  • the strength or quality of the downlink signal may include one or more of RSRP, RSRQ, and SINR of the downlink signal. The better the strength or quality of the downlink signal of the beam, the better the beam.
  • the terminal device can use different receiving beams to measure the strength or quality of the downlink signal under the new number of channels. Further, the terminal device may select the target beam based on the measurement result. Still taking FIG. 3 as an example, after the number of channels is adjusted, the beams corresponding to the terminal device are beam a, beam b, and beam c. The terminal device may use beam a, beam b, and beam c to measure downlink signals respectively, and select a target beam from beam a, beam b, and beam c based on the measurement results.
  • the target beam may be determined as the first beam, that is, the first beam is the target beam.
  • End devices can use targeted beams to communicate with network devices.
  • the terminal device may use the target beam to communicate with the network device.
  • the terminal device may determine the first beam based on the correspondence between the receiving beam and the transmitting beam. If the first beam is the transmitting beam, the terminal device may first select the receiving beam, and then determine the transmitting beam based on the corresponding relationship between the receiving beam and the transmitting beam. The terminal device may determine the target receiving beam in the manner described above. That is, the terminal device can select a target receiving beam based on the quality or strength of the downlink signal.
  • the terminal device may determine the target transmitting beam based on the corresponding relationship between the receiving beam and the transmitting beam. If after the number of channels is adjusted, the receiving beams corresponding to the terminal device are beam a, beam b, and beam c, and the corresponding transmitting beams of the terminal device are beam d, beam e, and beam f. Wherein, beam a corresponds to beam d, beam b corresponds to beam e, and beam c corresponds to beam f.
  • the terminal device selects beam a as the target receiving beam by measuring the downlink signals of beam a, beam b, and beam c, then according to the corresponding relationship between the transmitting beam and the receiving beam, the terminal device can determine beam d as the target transmitting beam beam (ie the first beam).
  • the terminal device may determine the first beam based on the beam indicated by the network device.
  • the terminal device may use the beam indicated by the network device as the first beam. For example, if the network device indicates to the terminal device to use beam 1 for communication, the terminal device may use beam 1 to communicate with the network device.
  • the network device may measure multiple transmit beams of the terminal device, so as to select the first beam.
  • the terminal device may respectively transmit uplink signals on multiple transmission beams, and the network device may measure the signals on the multiple transmission beams, such as measuring signal quality and/or strength, so as to select the first beam.
  • the network device may indicate the first beam to the terminal device. Further, the terminal device may transmit an uplink signal on the first beam.
  • Signal quality and/or strength may include one or more of RSRP, RSRQ, SINR.
  • the network device indicates the beam to the terminal device.
  • the terminal device may sequentially transmit uplink signals to the network device on different transmit beams.
  • the terminal device transmits uplink signals on multiple transmit beams, which may be performed under the instruction of the network device, or may also be sent by the terminal device autonomously. For example, after receiving the indication information sent by the network device, the terminal device then transmits an uplink signal.
  • step S606 the network device instructs the terminal device to transmit an uplink signal on beam 1.
  • step S608 the terminal device transmits uplink signal 1 on beam 1 .
  • step S610 the network device measures the uplink signal 1 .
  • step S612 the network device instructs the terminal device to transmit an uplink signal on beam 2.
  • step S614 the terminal device transmits the uplink signal 2 on the beam 2.
  • step S616 the network device measures the uplink signal 2.
  • the network device may select a first beam from multiple beams.
  • the first beam may be the beam with the best signal strength and/or quality.
  • step S620 the network device indicates the first beam to the terminal device.
  • step S622 after receiving the instruction from the network device, the terminal device uses the first beam to transmit an uplink signal.
  • the terminal device When the terminal device adjusts the number of paths, it may adjust the number of paths under the condition that any condition described above is satisfied. Alternatively, the terminal device may adjust the number of paths only when the network device allows path adjustment. In other words, the terminal device may select the target path based on the first parameter when the network device allows path adjustment.
  • the network device may send indication information to the terminal device, where the indication information is used to instruct the network device to allow the terminal device to perform path adjustment.
  • the terminal device determines the target path based on the first parameter. In other words, the target path is determined when the instruction information sent by the network device is received.
  • the terminal device may send a path adjustment request to the network device.
  • the terminal device may send a path adjustment request to the network device before performing path adjustment.
  • the terminal device may send a path adjustment request to the network device after judging that the condition for path adjustment is met through the manner described above.
  • the path adjustment request may carry path adjustment information.
  • the path adjustment information may include the adjustment of path type and/or path quantity.
  • the types of paths include transmit paths and/or receive paths. That is, to adjust the transmission path, or to adjust the reception path.
  • the path adjustment situation may include information on reducing or increasing the number of paths. That is, whether the path adjustment request requests to increase or decrease the number of paths.
  • step S604 the network device sends indication information to the terminal device.
  • the indication information is used to indicate that the terminal device is allowed to adjust the number of paths.
  • the network device can determine whether to allow or prohibit the terminal device from performing path adjustment according to the current network condition.
  • the network device may send indication information to the terminal device. If the network device does not allow the terminal device to perform path adjustment, the network device may not send indication information to the terminal device, or the network device may send other indication information to the terminal device to indicate that the terminal device is not allowed to perform path adjustment.
  • the terminal device may also carry beam adjustment information in the path adjustment request.
  • the beam adjustment information may include the beam type and/or the adjustment situation of the number of beams.
  • the types of beams include transmit beams and/or receive beams. That is, whether to adjust the transmit beam or to adjust the receive beam.
  • the beam adjustment condition may include information on reducing the number of beams or increasing the number of beams. That is, whether the beam adjustment request requests to increase or decrease the number of beams.
  • step S604 the network device sends indication information to the terminal device.
  • the indication information is used to indicate that the terminal device is allowed to adjust the number of beams.
  • the network device can determine whether to allow or prohibit the terminal device from performing beam adjustment according to the current network condition.
  • the network device may send indication information to the terminal device. If the network device does not allow the terminal device to perform beam adjustment, the network device may not send indication information to the terminal device, or the network device may send other indication information to the terminal device to indicate that the terminal device is not allowed to perform beam adjustment.
  • the network device may also use a timer to indicate whether the terminal device can perform path adjustment.
  • the network device may use a prohibit timer (prohibit timer) to indicate when the terminal device cannot perform path adjustment.
  • the terminal device cannot adjust the number of channels, and after the blocking timer expires, the terminal device can adjust the number of channels. That is, the target path may be determined upon expiration of the blocking timer.
  • the terminal device After the network device activates the blocking timer, the terminal device cannot adjust the number of channels during the activation period of the blocking timer.
  • the network device may determine whether to activate the blocking timer after receiving the path adjustment request sent by the terminal device.
  • the terminal device may also send path adjustment capability (or antenna unit adjustment capability) information to the network device.
  • the network device may assist the terminal device in selecting a path and/or beam according to the capability information of the terminal device.
  • the channel adjustment capability information may include one or more of the following information: the number of channels supported, the number of beams supported, the beamforming gain corresponding to different channel numbers, the beamforming gain difference corresponding to different channel numbers, and the number of different channels.
  • the path adjustment capability information may include the number of paths supported by the terminal device.
  • the number of channels supported by the terminal device may include one or more types. For example, the number of channels supported by the terminal device may be four. For another example, the number of channels supported by the terminal device may be 4 or 2, that is, the number of channels of the terminal device may be adjusted between 4 and 2.
  • the path adjustment capability information may include the number of beams supported by the terminal equipment.
  • the number of beams supported by the terminal device may include one or more types.
  • the number of beams supported by the terminal device may be 6.
  • the number of beams supported by the terminal device may be between 6 and 3, that is, the terminal device may be adjusted between 6 beams and 3 beams.
  • the number of beams supported by the terminal device has a corresponding relationship with the number of channels supported by the terminal device. As mentioned above, if the terminal device supports 4 channels, and the 4 channels correspond to 6 beams, then the terminal device supports 6 beams. If the terminal device supports 2 channels, and the 2 channels correspond to 3 beams, then the terminal device supports 3 beams.
  • the channel adjustment capability information may include beamforming gains corresponding to different numbers of channels. For example, if the terminal device supports 4 paths, the path adjustment capability information may include beamforming gains corresponding to the 4 paths. For another example, if the terminal device supports two paths, the path adjustment capability information may include beamforming gains corresponding to the two paths.
  • the channel adjustment capability information may include beamforming gain differences corresponding to different channel quantities. For example, if the terminal device supports 4 channels and 2 channels, the beamforming gain corresponding to 4 channels is a, and the beamforming gain corresponding to 2 channels is b, then the channel adjustment capability information may include difference.
  • the channel adjustment capability information may include peak transmit power corresponding to different channel quantities. For example, if the terminal device supports 4 paths, the path adjustment capability information may include peak transmit power corresponding to the 4 paths. For another example, if the terminal device supports two paths, the path adjustment capability information may include peak transmit power corresponding to the two paths.
  • the channel adjustment capability information may include peak transmit power differences corresponding to different channel quantities. For example, if the terminal device supports 4 channels and 2 channels, the peak transmit power corresponding to 4 channels is a, and the peak transmit power corresponding to 2 channels is b, the channel adjustment capability information may include the difference between a and b .
  • the channel adjustment capability information may include spherical coverage corresponding to different channel numbers. For example, if the terminal device supports 4 paths, the path adjustment capability information may include the spherical coverage corresponding to the 4 paths. For another example, if the terminal device supports two paths, the path adjustment capability information may include the spherical coverage corresponding to the two paths.
  • the channel adjustment capability information may include spherical coverage differences corresponding to different channel numbers. For example, if the terminal device supports 4 channels and 2 channels, the spherical coverage corresponding to 4 channels is a, and the spherical coverage corresponding to 2 channels is b, the channel adjustment capability information may include the difference between a and b.
  • Table 2 shows an example situation of path adjustment capability information. Taking the terminal device supporting 4 transmission channels and 2 transmission channels as an example, the capability information reported by the terminal device to the network device may be shown in Table 2.
  • the capability information reported by the terminal device to the network device may include: 4-channel transmission beam information, 2-channel transmission beam information, and the corresponding relationship between the 4-channel transmission beam and the 2-channel transmission beam.
  • the difference is J.
  • the peak EIRP difference between beam 1 or 2 and beam a is X
  • the peak EIRP difference between beam 3 or 4 and beam b is Y
  • the peak EIRP difference between beam 5 or 6 and beam c is Z .
  • the difference in spherical coverage between beam 1 or 2 and beam a is E
  • the difference in spherical coverage between beam 3 or 4 and beam b is F
  • the difference in spherical coverage between beam 5 or 6 and beam c is G .
  • Fig. 7 is a schematic block diagram of a terminal device provided by an embodiment of the present application.
  • the terminal device shown in FIG. 7 may be any terminal device described above.
  • the terminal device 700 shown in FIG. 7 may include a selection unit 710 .
  • the selection unit 710 is configured to select a target path from multiple paths to communicate with the network device based on a first parameter, where the first parameter is used to indicate the actual transmission power of the terminal device and/or the received power of the terminal device. Signal strength or quality.
  • the target path is determined based on a relationship between the first parameter and a first threshold.
  • the first threshold includes one or more thresholds, and there is a corresponding relationship between the one or more thresholds and one or more number of paths, and the number of target paths is one or more of the number of paths one of.
  • the first threshold is configured by the network device through at least one of the following signaling: RRC signaling, MAC signaling, and DCI.
  • the first parameter includes at least one of the following parameters: actual transmit power, transmit power headroom, RSRP, RSRQ, and SINR of the terminal device.
  • the target path is determined after receiving instruction information sent by the network device, where the instruction information is used to instruct the network device to allow the terminal device to perform path adjustment.
  • the target path is determined when the blocking timer expires.
  • the terminal device 700 further includes: a communication unit 720, configured to communicate with a network device on a first beam, where the first beam is a beam generated by the target path.
  • a communication unit 720 configured to communicate with a network device on a first beam, where the first beam is a beam generated by the target path.
  • the first beam is determined based on at least one of the following information: correspondence between beams generated by different numbers of paths; signal quality or strength received by receiving beams; correspondence between receiving beams and transmitting beams relationship; beams indicated by network devices.
  • the terminal device 700 further includes a sending unit 730, configured to send path adjustment capability information to a network device.
  • a sending unit 730 configured to send path adjustment capability information to a network device.
  • the channel adjustment capability information includes at least one of the following information: the number of supported channels, the number of supported beams, the difference in beamforming gain corresponding to different numbers of channels, the difference in peak transmit power corresponding to different numbers of channels, Differences in spherical coverage for different number of passes.
  • the terminal device is a millimeter wave terminal.
  • Fig. 8 is a schematic block diagram of a network device provided by an embodiment of the present application.
  • the network device shown in FIG. 8 may be any network device described above.
  • the network device 800 shown in FIG. 8 may include a communication unit 810 .
  • the communication unit 810 is configured to communicate with the terminal device through a second beam, the second beam corresponds to the first beam of the terminal device, and the target path corresponding to the second beam is determined based on a first parameter, and the first parameter It is used to indicate the actual transmission power of the terminal device and/or the signal strength or quality received by the terminal device.
  • the target path is determined based on a relationship between the first parameter and a first threshold.
  • the first threshold includes one or more thresholds, and there is a corresponding relationship between the one or more thresholds and one or more number of paths, and the number of target paths is one or more of the number of paths one of.
  • the first threshold is configured by the network device through at least one of the following signaling: RRC signaling, MAC signaling, and DCI.
  • the first parameter includes at least one of the following parameters: actual transmit power, transmit power headroom, RSRP, RSRQ, and SINR of the terminal device.
  • the target path is determined after receiving instruction information sent by the network device, where the instruction information is used to instruct the network device to allow the terminal device to perform path adjustment.
  • the target path is determined when the blocking timer expires.
  • the first beam is determined based on at least one of the following information: correspondence between beams generated by different numbers of paths; signal quality or strength received by receiving beams; correspondence between receiving beams and transmitting beams relationship; the beam indicated by the network device.
  • the network device 800 further includes: a receiving unit 820, configured to receive path adjustment capability information sent by the terminal device.
  • the channel adjustment capability information includes at least one of the following information: the number of supported channels, the number of supported beams, the difference in beamforming gain corresponding to different numbers of channels, the difference in peak transmit power corresponding to different numbers of channels, Differences in spherical coverage for different number of passes.
  • the terminal device is a millimeter wave terminal.
  • Fig. 9 is a schematic structural diagram of a device according to an embodiment of the present application.
  • the dotted line in Figure 9 indicates that the unit or module is optional.
  • the apparatus 900 may be used to implement the methods described in the foregoing method embodiments.
  • Apparatus 900 may be a chip, a terminal device or a network device.
  • Apparatus 900 may include one or more processors 910 .
  • the processor 910 can support the device 900 to implement the methods described in the foregoing method embodiments.
  • the processor 910 may be a general purpose processor or a special purpose processor.
  • the processor may be a central processing unit (central processing unit, CPU).
  • the processor can also be other general-purpose processors, digital signal processors (digital signal processors, DSPs), application specific integrated circuits (application specific integrated circuits, ASICs), off-the-shelf programmable gate arrays (field programmable gate arrays, FPGAs) Or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
  • a general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like.
  • Apparatus 900 may also include one or more memories 920 .
  • a program is stored in the memory 920, and the program can be executed by the processor 910, so that the processor 910 executes the methods described in the foregoing method embodiments.
  • the memory 920 may be independent from the processor 910 or may be integrated in the processor 910 .
  • Apparatus 900 may also include a transceiver 930 .
  • the processor 910 can communicate with other devices or chips through the transceiver 930 .
  • the processor 910 may send and receive data with other devices or chips through the transceiver 930 .
  • the embodiment of the present application also provides a computer-readable storage medium for storing programs.
  • the computer-readable storage medium can be applied to the terminal or the network device provided in the embodiments of the present application, and the program enables the computer to execute the methods performed by the terminal or the network device in the various embodiments of the present application.
  • the embodiment of the present application also provides a computer program product.
  • the computer program product includes programs.
  • the computer program product can be applied to the terminal or the network device provided in the embodiments of the present application, and the program enables the computer to execute the methods performed by the terminal or the network device in the various embodiments of the present application.
  • the embodiment of the present application also provides a computer program.
  • the computer program can be applied to the terminal or the network device provided in the embodiments of the present application, and the computer program enables the computer to execute the methods performed by the terminal or the network device in the various embodiments of the present application.
  • B corresponding to A means that B is associated with A, and B can be determined according to A.
  • determining B according to A does not mean determining B only according to A, and B may also be determined according to A and/or other information.
  • sequence numbers of the above-mentioned processes do not mean the order of execution, and the execution order of the processes should be determined by their functions and internal logic, and should not be used in the embodiments of the present application.
  • the implementation process constitutes any limitation.
  • the disclosed systems, devices and methods may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.
  • 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 includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present application will be generated 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 instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website, computer, server or data center Transmission to another website site, computer, server or data center by wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.).
  • the computer-readable storage medium may be any available medium that can be read by a computer, or a data storage device such as a server or a data center integrated with one or more available media.
  • the available medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a digital versatile disc (digital video disc, DVD)) or a semiconductor medium (for example, a solid state disk (solid state disk, SSD) )wait.
  • a magnetic medium for example, a floppy disk, a hard disk, a magnetic tape
  • an optical medium for example, a digital versatile disc (digital video disc, DVD)
  • a semiconductor medium for example, a solid state disk (solid state disk, SSD)

Abstract

提供了一种无线通信的方法、终端设备及网络设备。所述方法包括：终端设备基于第一参数，从多个通路中选择目标通路与网络设备进行通信，所述第一参数用于指示所述终端设备的实际发射功率和/或所述终端设备接收的信号强度或质量。终端设备在选择目标通路时，可以考虑终端设备的实际发射功率和/或终端设备接收的信号强度或质量等因素，从而有利于减少通路调整对通信性能的影响。

Description

无线通信的方法、终端设备及网络设备 技术领域
本申请涉及通信技术领域，并且更为具体地，涉及一种无线通信的方法、终端设备及网络设备。
背景技术
为了减少信号的空间损耗，终端设备可以通过多个通路来形成波束，利用波束与网络设备进行通信。如果终端设备使用全部数量的通道与网络设备进行通信，将会造成终端设备功耗的增加。
为了降低终端设备的功耗，协议中讨论了一种在不必要的时候只采用部分通路工作的方式。然而，终端设备应当如何进行通路的选择，目前还没有明确的方案。
发明内容
本申请提供一种无线通信的方法、终端设备及网络设备，以解决上述问题。
第一方面，提供了一种无线通信的方法，包括：终端设备基于第一参数，从多个通路中选择目标通路与网络设备进行通信，所述第一参数用于指示所述终端设备的实际发射功率和/或所述终端设备接收的信号强度或质量。
第二方面，提供了一种无线通信的方法，包括：网络设备通过第二波束与终端设备进行通信，所述第二波束与终端设备的第一波束对应，所述第二波束对应的目标通路基于第一参数确定，所述第一参数用于指示所述终端设备的实际发射功率和/或所述终端设备接收的信号强度或质量。
第三方面，提供一种终端设备，包括：选择单元，用于基于第一参数，从多个通路中选择目标通路与网络设备进行通信，所述第一参数用于指示所述终端设备的实际发射功率和/或所述终端设备接收的信号强度或质量。
第四方面，提供一种网络设备，包括：通信单元，用于通过第二波束与终端设备进行通信，所述第二波束与终端设备的第一波束对应，所述第二波束对应的目标通路基于第一参数确定，所述第一参数用于指示所述终端设备的实际发射功率和/或所述终端设备接收的信号强度或质量。
第五方面，提供一种终端设备，包括存储器和处理器，所述存储器用于存储程序，所述处理器用于调用所述存储器中的程序，以执行如第一方面所述的方法。
第六方面，提供一种网络设备，包括存储器和处理器，所述存储器用于存储程序，所述处理器用于调用所述存储器中的程序，以执行第二方面所述的方法。
第七方面，提供一种装置，包括处理器，用于从存储器中调用程序，以执行第一方面所述的方法。
第八方面，提供一种装置，包括处理器，用于从存储器中调用程序，以执行第二方面所述的方法。
第九方面，提供一种芯片，包括处理器，用于从存储器调用程序，使得安装有所述芯片的设备执行第一方面所述的方法。
第十方面，提供一种芯片，包括处理器，用于从存储器调用程序，使得安装有所述芯片的设备执行第二方面所述的方法。
第十一方面，提供一种计算机可读存储介质，其上存储有程序，所述程序使得计算机执行第一方面所述的方法。
第十二方面，提供一种计算机可读存储介质，其上存储有程序，所述程序使得计算机执行第二方面所述的方法。
第十三方面，提供一种计算机程序产品，包括程序，所述程序使得计算机执行第一方面所述的方法。
第十四方面，提供一种计算机程序产品，包括程序，所述程序使得计算机执行第二方面所述的方法。
第十五方面，提供一种计算机程序，所述计算机程序使得计算机执行第一方面所述的方法。
第十六方面，提供一种计算机程序，所述计算机程序使得计算机执行第二方面所述的方法。
本申请实施例提供了一种终端设备选择目标通路的方案，即终端设备可以基于第一参数，选择目标通路。在选择目标通路时，可以考虑终端设备的实际发射功率和/或终端设备接收的信号强度或质量等因素，从而有利于减少通路调整对通信性能的影响。
附图说明
图1是本申请实施例应用的无线通信系统的示例图。
图2是本申请实施例提供的一种终端设备的结构示意图。
图3是本申请实施例提供的一种不同通道数量对应的波束情况的示意图。
图4是本申请实施例提供的一种无线通信的方法的示意性流程图。
图5是本申请实施例提供的另一种无线通信的方法的示意性流程图。
图6是本申请实施例提供的网络设备向终端设备指示波束的示意性流程图。
图7是本申请实施例提供的一种终端设备的示意性框图。
图8是本申请实施例提供的一种网络设备的示意性框图。
图9是本申请实施例提供的一种装置的示意性结构图。
具体实施方式
下面将结合附图，对本申请中的技术方案进行描述。
图1是本申请实施例应用的无线通信系统100。该无线通信系统100可以包括网络设备110和终端设备120。网络设备110可以是与终端设备120通信的设备。网络设备110可以为特定的地理区域提供通信覆盖，并且可以与位于该覆盖区域内的终端设备120进行通信。
图1示例性地示出了一个网络设备和两个终端，可选地，该无线通信系统100可以包括多个网络设备并且每个网络设备的覆盖范围内可以包括其它数量的终端设备，本申请实施例对此不做限定。
可选地，该无线通信系统100还可以包括网络控制器、移动管理实体等其他网络实体，本申请实施例对此不作限定。
应理解，本申请实施例的技术方案可以应用于各种通信系统，例如：第五代(5th generation，5G)系统或新无线(new radio，NR)、长期演进(long term evolution，LTE)系统、LTE频分双工(frequency division duplex，FDD)系统、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系统，如第六代移动通信系统，又如卫星通信系统，等等。
本申请实施例中的终端设备也可以称为用户设备(user equipment，UE)、接入终端、用户单元、用户站、移动站、移动台(mobile station，MS)、移动终端(mobile Terminal，MT)、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。本申请实施例中的终端设备可以是指向用户提供语音和/或数据连通性的设备，可以用于连接人、物和机，例如具有无线连接功能的手持式设备、车载设备等。本申请的实施例中的终端设备可以是手机(mobile phone)、平板电脑(Pad)、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)中的无线终端等。可选地，UE可以用于充当基站。例如，UE可以充当调度实体，其在V2X或D2D等中的UE之间提供侧行链路信号。比如，蜂窝电话和汽车利用侧行链路信号彼此通信。蜂窝电话和智能家居设备之间通信，而无需通过基站中继通信信号。
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，该网络设备也可以称为接入网设备或无线接入网设备，如网络设备可以是基站。本申请实施例中的网络设备可以是指将终端设备接入到无线网络的无线接入网(radio access network，RAN)节点(或设备)。基站可以广义的覆盖如下中的各种名称，或与如下名称进行替换，比如：节点B(NodeB)、演进型基站(evolved NodeB，eNB)、下一代基站(next generation NodeB，gNB)、中继站、接入点、传输点(transmitting and receiving point，TRP)、发射点(transmitting point，TP)、主站MeNB、辅站SeNB、多制式无线(MSR)节点、家庭基站、网络控制器、接入节点、无线节点、接入点(access piont，AP)、传输节点、收发节点、基带单元(base band unit，BBU)、射频拉远单元(Remote Radio Unit，RRU)、有源天线单元(active antenna unit，AAU)、射频头(remote radio head，RRH)、中心单元(central unit，CU)、分布式单元(distributed unit，DU)、定位节点等。基站可以是宏基站、微基站、中继节点、施主节点或类似物，或其组合。基站还可以指用于设置于前述设备或装置内的通信模块、调制解调器或芯片。基站还可以是移动交换中心以及设备到设备D2D、车辆外联(vehicle-to-everything，V2X)、机器到机器(machine-to-machine，M2M)通信中承担基站功能的设备、6G网络中的网络侧设备、未来的通信系统中承担基站功能的设备等。基站可以支持相同或不同接入技术的网络。本申请的实施例对网络设备所采用的具体技术和具体设备形态不做限定。
基站可以是固定的，也可以是移动的。例如，直升机或无人机可以被配置成充当移动基站，一个或多个小区可以根据该移动基站的位置移动。在其他示例中，直升机或无人机可以被配置成用作与另一基站通信的设备。
在一些部署中，本申请实施例中的网络设备可以是指CU或者DU，或者，网络设备包括CU和DU。gNB还可以包括AAU。
网络设备和终端设备可以部署在陆地上，包括室内或室外、手持或车载；也可以部署在水面上；还可以部署在空中的飞机、气球和卫星上。本申请实施例中对网络设备和终端设备所处的场景不做限定。
应理解，本申请中涉及到的通信设备，可以为网络设备，或者也可以为终端设备。例如，第一通信设备为网络设备，第二通信设备为终端设备。又如，第一通信设备为终端设备，第二通信设备为网络设备。又如，第一通信设备和第二通信设备均为网络设备，或者均为终端设备。
还应理解，本申请中的通信设备的全部或部分功能也可以通过在硬件上运行的软件功能来实现，或者通过平台(例如云平台)上实例化的虚拟化功能来实现。
通信系统系统中，如NR系统，引入了毫米波工作频段，通常情况下毫米波工作频率在10GHz以上。电磁波在毫米波频段的空间传播损耗非常大，导致电磁波信号的覆盖范围受限。为了克服大的空间损耗，终端设备在毫米波频段一般会采用由多个天线阵子组成的天线阵来形成窄波束发射信号和接收信号，这些窄波束相应具有比较强的指向性，如图1所示。
终端设备的信号发射和接收系统可以包括多个发射通路(或通道)和/或多个接收通路。如图2所示，多个发射通路可以包括多个功率放大器(power amplifier，PA)和天线阵子，多个接收通路包括多个低噪声放大器(low noise amplifier，LNA)和天线阵子。为方便描述，下文将发射通路和/或接收通路简称为通路。
以图2为例，图2所示的波束1～波束6可以为发射波束，也可以为接收波束。举例说明，终端设备包括4个发射通路和4个接收通路(如通路1～通路4)，4个发射通路可对应(或产生)6个发射波束(或上行滤波器或上行滤波参数)，4个接收通路可对应6个接收波束(或下行滤波器或下行滤波参数)。通常情况下，终端设备包括的通路数量越多(或天线阵子越多)，终端设备能够形成的波束就越多，且形成的波束越窄，即波束赋形增益越大。波束越窄，终端设备的峰值等效全向辐射功率(peak effective isotropic radiated power，peak EIRP)就越大。peak EIRP表征了终端设备在某个方向所能达到的最大峰值功率，该值越大则终端设备能够达到的上下行覆盖就越大。波束越多，终端设备能够达到的球面覆盖就越大，终端设备就可以在更多方向上保持连接，移动性将更好。
如上所述，终端设备激活的天线阵子越多，终端设备能够达到的上下行覆盖范围就越大，终端设备的波束赋形增益越大。为了保证通信质量，终端设备将始终激活所有的天线阵子来与网络设备进行通信，从而达到最大的波束赋形增益。由图2可知，每个天线阵子都与PA、LNA、移相器等部件连接，一个通路工作，则就意味着该通路上的PA、LNA、移相器等部件都需要一起工作，而这些器件一起工作会产生大量的功耗。功耗的增加会加速终端设备电量的耗尽，同时产生大量的热，使得终端设备因为过热而无法持续工作。
因此，需要进一步研究如何在不对终端设备实际性能产生影响的前提下，降低终端设备的耗电。
一种最直接的解决方案是，终端设备在不必要的时候只采用部分通路工作，也就是说，终端设备可以不必让所有通路都一直处于工作状态，而是可以根据需要选择部分或全部的通路工作。通过减少工作的通路数量，可以降低终端设备的功耗及发热。然而，关于终端设备如何进行通路数量的选择，目前还没有明确的方案。
如前文所述，如果降低通路数量，将会导致终端设备的波束赋形增益降低。以图3为例，在采用4个通路(如通路1～通路4)的情况下，终端设备可以形成6个波束，即波束1～波束6。而当终端设备采用2个通路(通路1和通路2)的情况下，终端设备可以形成的波束降低为3个，即波束a、波束b和波束c。相比于4个通路，2个通路产生的波束数量更少，且波束赋形增益降低，使得终端设备的上下行覆盖减少。因此，在减少通路数量时，需要考虑通路数量对终端设备通信性能的影响。
以发射过程为例。终端设备发射的信号功率大小与PA的输出功率Pout以及波束赋形增益GainAnt有关。PA的输出功率越大，终端设备的发射功率就越大；GainAnt越大，终端设备的发射功率越大。为了达到一个目标功率，终端设备可以通过两种方式来实现。一种方式是，终端设备可以通过提高PA的输出功率，而减少发射通路的数量(即减少天线赋形增益)。另一种方式是，终端设备可以降低PA的输出功率，而增加发射通路的数量(即增加天线赋形增益)。在上述两种方式中，减少发射通路的数量能够带来更低的终端功耗和发热，换句话说，相比于提高PA的输出功率，增加发射通路的数量会带来更大的功耗和发热。因此，为了达到一个目标功率，终端设备可以通过减少发射通路的数量，提高PA的输出功率来实现，从而可以降低终端设备的功耗和发热。
但是，受限于PA输出功率的能力，并非所有的目标功率都能通过减少发射通路的数量来实现。因此，在降低终端功耗和发热的同时，需要考虑目标功率的范围。
另外，减少发射通路的数量还会带来干扰增大的问题。如图3所示，当终端设备的通路数量从4个通路降低为2个通路时，终端设备的波束赋形增益降低，同时波束的宽度会变宽。也就是说，终端设备在非波束峰值方向的增益会变大。当终端设备处于发射状态时，会将更多的功率辐射到非峰值方向， 从而会对其他方向的用户产生干扰。当终端设备处于接收状态时，会接收到更多非峰值方向的信号，而通常情况下，非峰值方向的信号为干扰信号，这将会导致终端设备接收到的信号的信噪比降低。因此，在减少通路数量的同时，还需要考虑波束宽度变宽带来的干扰问题。
综上，终端设备在对通路数量进行调整时，将会使终端设备的发射功率、干扰发生变化。通常情况下，处于小区中心区域的终端设备，其所需要的发射功率比较小，且邻小区对其产生的干扰比较少，此时更适合减少发射通路的数量，即减少发射通路的数量也能保证终端设备的通信质量。而对于小区边缘的终端设备，其所需要的发射功率比较大，且邻小区对其产生的干扰比较多，此时就不适合减少发射通路的数量。处于小区边缘的终端设备，由于减少发射通路的数量将不能保证终端设备的通信质量，因此，终端设备更适合通过增加发射通路的数量，来保证通信质量。
基于此，本申请实施例可以通过考虑终端设备实际的发射功率和/或干扰等因素，来选择通路数量。终端设备实际的发射功率可以为上文描述的目标功率。下面结合图4，对本申请实施例的方案进行描述。
在步骤S410、终端设备基于第一参数，从多个通路中选择目标通路与网络设备进行通信。本申请实施例的终端设备可以为毫米波终端。当然，终端设备也可以为其他频段的电磁波终端。
多个通路可以为终端设备支持的通路，或者，多个通路的数量为终端设备支持的最大通路数量。该多个通路可以包括发射通路，或者多个通路包括接收通路，或者多个通路也可以同时包括发射通路和接收通路。可以理解的是，目标通路可以包括发射通路，或者，目标通路可以包括接收通路，或者，目标通路可以包括发射通路和接收通路。发射通路与接收通路的选择方式类似，下文将发射通路与接收通路统称为通路进行描述。
例如，终端设备可以从多个通路中选择目标发射通路。又例如，终端设备可以从多个通路中选择目标接收通路。再例如，终端设备可以从多个通路中选择目标发射通路和目标接收通路。
当发射波束和接收波束为相同的波束时，调整发射通路的数量将会对接收通路的数量产生影响，同样地，调整接收通路的数量将会对发射通路的数量产生影响。例如，当减少发射通路的数量时，接收通路的数量也相应减少。以图3为例，当终端设备选择4个发射通路时，相应地，就选择了4个接收通路。当终端设备选择2个发射通路时，相应地，就选择了2个接收通路。因此，终端设备可以基于第一参数，同时选择发射通路和接收通路。
第一参数可用于指示以下参数中的一种或多种：终端设备实际的发射功率，终端设备接收的信号质量和终端设备接收的信号强度。终端设备接收的信号质量可以由参考信号接收质量(reference signal receiving quality，RSRQ)和/或信号干扰噪声比(signal-to jamming and noise ratio，SINR)来指示。终端设备接收的信号强度可以由参考信号接收功率(reference signal receiving power，RSRP)来指示。下面结合几个示例，对第一参数的具体内容进行描述。可以理解的是，下文描述的几个示例可以相互结合，即第一参数可以为以下示例中的一种或多种的组合。
以第一参数指示终端设备实际的发射功率为例，第一参数可以包括终端设备实际的发射功率和/或发射功率余量。
示例一、第一参数为发射功率
终端设备实际的发射功率可简称为终端设备的发射功率。终端设备的发射功率可以为终端设备可配置的最大发射功率Pcmax，或者，也可以为网络设备调度的发射功率TxPow。例如，终端设备的发射功率可以为Pcmax和TxPow中的较小值。举例说明，如果网络设备调度的发射功率小于终端设备的最大发射功率，则终端设备的发射功率为网络设备调度的发射功率；如果网络设备调度的发射功率大于终端设备的最大发射功率，则终端设备的发射功率为终端设备的最大发射功率。
本申请实施例可以基于终端设备的发射功率，选择目标通路。如果终端设备的发射功率较大，则终端设备可以选择较多数量的通路；如果终端设备的发射功率较小，则终端设备可以选择较少数量的通路。
在一些实施例中，终端设备可以基于终端设备的发射功率与第一门限(或称为阈值)，选择目标通路。也就是说，目标通路可以基于发射功率余量和第一门限之间的关系确定。
第一门限的数量可以为一个或多个，即第一门限可以包括一个门限，也可以包括多个门限。
下面分别针对终端设备减少通路数量和增加通路数量的情况进行描述。
第一门限为减少通路数量的门限
以第一门限包括一个门限为例，当终端设备的发射功率低于第一门限时，终端设备可以减少通路的数量。另外，第一门限还可以与通路的数量具有对应关系。例如，第一门限与n个通路具有对应关系。当终端设备的发射功率低于第一门限时，终端设备可以选择n个通路，即终端设备将通路数量从m个减少为n个，m为终端设备当前使用的通路数量，m大于n。
以第一门限包括多个门限为例，假设多个门限包括门限1和门限2，门限1高于门限2。当终端设备的发射功率低于门限1时，终端设备可以减少通路的数量；当终端设备的发射功率低于门限2时，终端设备可以继续减少通路的数量。换句话说，终端设备的通路数量可以进行多次变更。
多个门限可以与多个通路数量之间具有对应关系。终端设备可以基于多个门限与多个通路数量之间的对应关系，以及终端设备的发射功率，选择目标通路。其中，目标通路的数量为多个通路数量中的一个。
假设门限1与n个通路数量具有对应关系，门限2与k个通路之间具有对应关系，其中，n大于k。终端设备选择的目标通路的数量为n和k中的一个。当终端设备的发射功率低于门限1时，终端设备可以选择n个通路，即终端设备可以将通路数量从m个减少为n个，m大于n，m为终端设备当前使用的通路数量；当终端设备的发射功率低于门限2时，终端设备可以选择k个通路数量，即终端设备可以将通路数量从n个减少为k个。
第一门限可以是协议中预定义的，或者，也可以是终端设备自主确定的，或者也可以是网络设备为终端设备配置的。如果第一门限由网络设备配置，则网络设备可以通过无线资源控制(radio resource control，RRC)信令、媒体接入控制(media access control，MAC)信令和下行控制信息(downlink control information，DCI)中的一种或多种方式配置。
第一门限为增加通路数量的门限
以第一门限包括一个门限为例，当终端设备实际的发射功率高于第一门限时，终端设备可以增加通路的数量。另外，第一门限还可以与通路的数量具有对应关系。例如，第一门限与y个通路具有对应关系。当终端设备的发射功率高于第一门限时，终端设备可以选择y个通路，即终端设备将通路数量从x个增加为y个，x为终端设备当前使用的通路数量，x小于y。
以第一门限包括多个门限为例，假设多个门限包括门限3和门限4，门限3低于门限4。当终端设备的发射功率高于门限3时，终端设备可以增加通路的数量；当终端设备的发射功率高于门限4时，终端设备可以继续增加通路的数量。换句话说，终端设备的通路数量可以进行多次变更。
多个门限可以与多个通路数量之间具有对应关系。终端设备可以基于多个门限与多个通路数量之间的对应关系，以及终端设备的发射功率，选择目标通路。其中，目标通路的数量为多个通路数量中的一个。
假设门限3与y个通路具有对应关系，门限4与z个通路之间具有对应关系，其中，y小于z。终端设备选择的目标通路的数量为y和z中的一个。当终端设备的发射功率高于门限3时，终端设备可以选择y个通路，即终端设备可以将通路数量从x个增加为y个，x小于y，x为终端设备当前使用的通路数量；当终端设备的发射功率高于门限4时，终端设备可以选择z个通路数量，即终端设备可以将通路数量从y个增加为z个。
第一门限可以是协议中预定义的，或者，也可以是终端设备自主确定的，或者也可以是网络设备为终端设备配置的。如果第一门限由网络设备配置，则网络设备可以通过RRC信令、MAC信令和DCI中的一种或多种方式配置。
增加通路数量的门限与减少通路数量的门限可以相同，也可以不同。以第一门限为一个门限进行举例说明，可以理解的是，该方式对第一门限为多个门限的情况也同样适用，为了简洁，此处不再赘述。
如果增加通路数量的门限和减少通路数量的门限相同，如均为门限x。当终端设备的发射功率低于门限x时，终端设备选择n个通路数量，即终端设备可以将通路数量从m个减少为n个；当终端设备的发射功率高于门限x时，终端设备选择m个门限，即终端设备可以将通路数量从n个增加为m个。
如果增加通路数量的门限与减少通路数量的门限不同，如增加通路数量的门限对应门限a、减少通路数量的门限对应门限b，当终端设备的发射功率小于门限b时，终端设备选择n个通路数量，即终端设备可以将通路数量从m个减少为n个。当终端设备的发射功率高于门限a时，终端设备选择m个通路数量，即终端设备可以将通路数量从n个增加为m个。
示例二、第一参数为发射功率余量
发射功率余量可以指终端设备可配置的最大发射功率Pcmax与网络设备调度的终端发射功率TxPow之间的差值。该值越大，表示发射功率余量越大，终端设备实际的发射功率越小。该值越小，表示发射功率余量越小，终端设备实际的发射功率越大。
终端设备可以基于发射功率余量，选择目标通路。如果发射功率余量较小，则终端设备可以选择较多数量的通路；如果发射功率余量较大，则终端设备可以选择较少数量的通路。
在一些实施例中，终端设备可以基于发射功率余量与第一门限，选择目标通路。也就是说，目标通路可以基于发射功率余量和第一门限之间的关系确定。
第一门限的数量可以为一个或多个，即第一门限可以包括一个门限，也可以包括多个门限。
下面分别针对终端设备减少通路数量和增加通路数量的情况进行描述。
第一门限为减少通路数量的门限
以第一门限包括一个门限为例，当终端设备的发射功率余量高于第一门限时，终端设备可以减少通路的数量。另外，第一门限还可以与通路的数量具有对应关系。例如，第一门限与n个通路具有对应关系。当终端设备的发射功率余量高于第一门限时，终端设备可以选择n个通路，即终端设备将通路数量从m个减少为n个，m为终端设备当前使用的通路数量，m大于n。
以第一门限包括多个门限为例，假设多个门限包括门限1和门限2，门限1低于门限2。当终端设备的发射功率余量高于门限1时，终端设备可以减少通路的数量；当终端设备的发射功率余量高于门限2时，终端设备可以继续减少通路的数量。换句话说，终端设备的通路数量可以进行多次变更。
多个门限可以与多个通路数量之间具有对应关系。终端设备可以基于多个门限与多个通路数量之间的对应关系，以及终端设备的发射功率余量，选择目标通路。其中，目标通路的数量为多个通路数量中的一个。
假设门限1与n个通路数量具有对应关系，门限2与k个通路之间具有对应关系，其中，n大于k。终端设备选择的目标通路的数量为n和k中的一个。当终端设备的发射功率余量高于门限1时，终端设备可以选择n个通路，即终端设备可以将通路数量从m个减少为n个，m大于n，m为终端设备当前使用的通路数量；当终端设备的发射功率余量高于门限2时，终端设备可以选择k个通路数量，即终端设备可以将通路数量从n个减少为k个。
第一门限可以是协议中预定义的，或者，也可以是终端设备自主确定的，或者也可以是网络设备为终端设备配置的。如果第一门限由网络设备配置，则网络设备可以通过RRC信令、MAC信令和DCI中的一种或多种方式配置。
第一门限为增加通路数量的门限
以第一门限包括一个门限为例，当终端设备的发射功率余量低于第一门限时，终端设备可以增加通路的数量。另外，第一门限还可以与通路的数量具有对应关系。例如，第一门限与y个通路具有对应关系。当终端设备的发射功率余量低于第一门限时，终端设备可以选择y个通路，即终端设备将通路数量从x个增加为y个，x为终端设备当前使用的通路数量，x小于y。
以第一门限包括多个门限为例，假设多个门限包括门限3和门限4，门限3高于门限4。当终端设备的发射功率余量低于门限3时，终端设备可以增加通路的数量；当终端设备的发射功率余量低于门限4时，终端设备可以继续增加通路的数量。换句话说，终端设备的通路数量可以进行多次变更。
多个门限可以与多个通路数量之间具有对应关系。终端设备可以基于多个门限与多个通路数量之间的对应关系，以及终端设备的发射功率余量，选择目标通路。其中，目标通路的数量为多个通路数量中的一个。
假设门限3与y个通路具有对应关系，门限4与z个通路之间具有对应关系，其中，y小于z。终端设备选择的目标通路的数量为y和z中的一个。当终端设备的发射功率余量低于门限3时，终端设备可以选择y个通路，即终端设备可以将通路数量从x个增加为y个，x小于y，x为终端设备当前使用的通路数量；当终端设备的发射功率余量低于门限4时，终端设备可以选择z个通路数量，即终端设备可以将通路数量从y个增加为z个。
第一门限可以是协议中预定义的，或者，也可以是终端设备自主确定的，或者也可以是网络设备为终端设备配置的。如果第一门限由网络设备配置，则网络设备可以通过RRC信令、MAC信令和DCI中的一种或多种方式配置。
增加通路数量的门限与减少通路数量的门限可以相同，也可以不同。以第一门限为一个门限进行举例说明，可以理解的是，该方式对第一门限为多个门限的情况也同样适用，为了简洁，此处不再赘述。
如果增加通路数量的门限和减少通路数量的门限相同，如均为门限x。当终端设备的发射功率余量高于门限x时，终端设备选择n个通路数量，即终端设备可以将通路数量从m个减少为n个；当终端设备的发射功率余量低于门限x时，终端设备选择m个门限，即终端设备可以将通路数量从n个增加为m个。
如果增加通路数量的门限与减少通路数量的门限不同，如增加通路数量的门限对应门限a、减少通路数量的门限对应门限b，当终端设备的发射功率余量高于门限b时，终端设备选择n个通路数量，即终端设备可以将通路数量从m个减少为n个。当终端设备的发射功率余量低于门限a时，终端设备选择m个通路数量，即终端设备可以将通路数量从n个增加为m个。
示例三、第一参数为RSRP
终端设备接收的信号的RSRP越大，表示下行信号的信号强度越大。终端设备接收的信号的RSRP越小，表示下行信号的信号强度越小。
终端设备可以基于RSRP，选择目标通路。如果RSRP较小，则终端设备可以选择较多数量的通路；如果RSRP较大，则终端设备可以选择较少数量的通路。
在一些实施例中，终端设备可以基于终端设备接收的信号的RSRP与第一门限，选择目标通路。也就是说，目标通路可以基于终端设备接收的信号的RSRP和第一门限之间的关系确定。
第一门限的数量可以为一个或多个，即第一门限可以包括一个门限，也可以包括多个门限。
下面分别针对终端设备减少通路数量和增加通路数量的情况进行描述。
第一门限为减少通路数量的门限
以第一门限包括一个门限为例，当终端设备接收的信号的RSRP高于第一门限时，终端设备可以减少通路的数量。另外，第一门限还可以与通路的数量具有对应关系。例如，第一门限与n个通路具有对应关系。当终端设备接收的信号的RSRP高于第一门限时，终端设备可以选择n个通路，即终端设备将通路数量从m个减少为n个，m为终端设备当前使用的通路数量，m大于n。
以第一门限包括多个门限为例，假设多个门限包括门限1和门限2，门限1低于门限2。当RSRP高于门限1时，终端设备可以减少通路的数量；当RSRP高于门限2时，终端设备可以继续减少通路的数量。换句话说，终端设备的通路数量可以进行多次变更。
多个门限可以与多个通路数量之间具有对应关系。终端设备可以基于多个门限与多个通路数量之间的对应关系，以及终端设备接收的信号的RSRP，选择目标通路。其中，目标通路的数量为多个通路数量中的一个。
假设门限1与n个通路数量具有对应关系，门限2与k个通路之间具有对应关系，其中，n大于k。终端设备选择的目标通路的数量为n和k中的一个。当RSRP高于门限1时，终端设备可以选择n个通路，即终端设备可以将通路数量从m个减少为n个，m大于n，m为终端设备当前使用的通路数量；当RSRP高于门限2时，终端设备可以选择k个通路数量，即终端设备可以将通路数量从n个减少为k个。
第一门限可以是协议中预定义的，或者，也可以是终端设备自主确定的，或者也可以是网络设备为终端设备配置的。如果第一门限由网络设备配置，则网络设备可以通过RRC信令、MAC信令和DCI中的一种或多种方式配置。
第一门限为增加通路数量的门限
以第一门限包括一个门限为例，当RSRP低于第一门限时，终端设备可以增加通路的数量。另外，第一门限还可以与通路的数量具有对应关系。例如，第一门限与y个通路具有对应关系。当RSRP低于第一门限时，终端设备可以选择y个通路，即终端设备将通路数量从x个增加为y个，x为终端设备当前使用的通路数量，x小于y。
以第一门限包括多个门限为例，假设多个门限包括门限3和门限4，门限3高于门限4。当RSRP低于门限3时，终端设备可以增加通路的数量；当RSRP低于门限4时，终端设备可以继续增加通路的数量。换句话说，终端设备的通路数量可以进行多次变更。
多个门限可以与多个通路数量之间具有对应关系。终端设备可以基于多个门限与多个通路数量之间的对应关系，以及终端设备接收的信号的RSRP，选择目标通路。其中，目标通路的数量为多个通路数量中的一个。
假设门限3与y个通路具有对应关系，门限4与z个通路之间具有对应关系，其中，y小于z。终端设备选择的目标通路的数量为y和z中的一个。当RSRP低于门限3时，终端设备可以选择y个通路，即终端设备可以将通路数量从x个增加为y个，x小于y，x为终端设备当前使用的通路数量；当RSRP低于门限4时，终端设备可以选择z个通路数量，即终端设备可以将通路数量从y个增加为z个。
第一门限可以是协议中预定义的，或者，也可以是终端设备自主确定的，或者也可以是网络设备为终端设备配置的。如果第一门限由网络设备配置，则网络设备可以通过RRC信令、MAC信令和DCI中的一种或多种方式配置。
增加通路数量的门限与减少通路数量的门限可以相同，也可以不同。以第一门限为一个门限进行举例说明，可以理解的是，该方式对第一门限为多个门限的情况也同样适用，为了简洁，此处不再赘述。
如果增加通路数量的门限和减少通路数量的门限相同，如均为门限x。当终端设备接收的信号的RSRP高于门限x时，终端设备选择n个通路数量，即终端设备可以将通路数量从m个减少为n个；当终端设备接收的信号的RSRP低于门限x时，终端设备选择m个门限，即终端设备可以将通路数量 从n个增加为m个。
如果增加通路数量的门限与减少通路数量的门限不同，如增加通路数量的门限对应门限a、减少通路数量的门限对应门限b，当终端设备接收的信号的RSRP高于门限b时，终端设备选择n个通路数量，即终端设备可以将通路数量从m个减少为n个。当终端设备接收的信号的RSRP低于门限a时，终端设备选择m个通路数量，即终端设备可以将通路数量从n个增加为m个。
示例四、第一参数为RSRQ
终端设备接收的信号的RSRQ越大，表示下行信号的质量越好，信号干扰越小。终端设备接收的信号的RSRQ越小，表示下行信号的质量越差，信号干扰越大。
终端设备可以基于RSRQ，选择目标通路。如果RSRQ较小，则终端设备可以选择较多数量的通路；如果RSRQ较大，则终端设备可以选择较少数量的通路。
在一些实施例中，终端设备可以基于终端设备接收的信号的RSRQ与第一门限，选择目标通路。也就是说，目标通路可以基于终端设备接收的信号的RSRQ和第一门限之间的关系确定。
第一门限的数量可以为一个或多个，即第一门限可以包括一个门限，也可以包括多个门限。
下面分别针对终端设备减少通路数量和增加通路数量的情况进行描述。
第一门限为减少通路数量的门限
以第一门限包括一个门限为例，当终端设备接收的信号的RSRQ高于第一门限时，终端设备可以减少通路的数量。另外，第一门限还可以与通路的数量具有对应关系。例如，第一门限与n个通路具有对应关系。当终端设备接收的信号的RSRQ高于第一门限时，终端设备可以选择n个通路，即终端设备将通路数量从m个减少为n个，m为终端设备当前使用的通路数量，m大于n。
以第一门限包括多个门限为例，假设多个门限包括门限1和门限2，门限1低于门限2。当RSRQ高于门限1时，终端设备可以减少通路的数量；当RSRQ高于门限2时，终端设备可以继续减少通路的数量。换句话说，终端设备的通路数量可以进行多次变更。
多个门限可以与多个通路数量之间具有对应关系。终端设备可以基于多个门限与多个通路数量之间的对应关系，以及终端设备接收的信号的RSRQ，选择目标通路。其中，目标通路的数量为多个通路数量中的一个。
假设门限1与n个通路数量具有对应关系，门限2与k个通路之间具有对应关系，其中，n大于k。终端设备选择的目标通路的数量为n和k中的一个。当RSRQ高于门限1时，终端设备可以选择n个通路，即终端设备可以将通路数量从m个减少为n个，m大于n，m为终端设备当前使用的通路数量；当RSRQ高于门限2时，终端设备可以选择k个通路数量，即终端设备可以将通路数量从n个减少为k个。
第一门限可以是协议中预定义的，或者，也可以是终端设备自主确定的，或者也可以是网络设备为终端设备配置的。如果第一门限由网络设备配置，则网络设备可以通过RRC信令、MAC信令和DCI中的一种或多种方式配置。
第一门限为增加通路数量的门限
以第一门限包括一个门限为例，当RSRQ低于第一门限时，终端设备可以增加通路的数量。另外，第一门限还可以与通路的数量具有对应关系。例如，第一门限与y个通路具有对应关系。当RSRQ低于第一门限时，终端设备可以选择y个通路，即终端设备将通路数量从x个增加为y个，x为终端设备当前使用的通路数量，x小于y。
以第一门限包括多个门限为例，假设多个门限包括门限3和门限4，门限3高于门限4。当RSRQ低于门限3时，终端设备可以增加通路的数量；当RSRQ低于门限4时，终端设备可以继续增加通路的数量。换句话说，终端设备的通路数量可以进行多次变更。
多个门限可以与多个通路数量之间具有对应关系。终端设备可以基于多个门限与多个通路数量之间的对应关系，以及终端设备接收的信号的RSRQ，选择目标通路。其中，目标通路的数量为多个通路数量中的一个。
假设门限3与y个通路具有对应关系，门限4与z个通路之间具有对应关系，其中，y小于z。终端设备选择的目标通路的数量为y和z中的一个。当RSRQ低于门限3时，终端设备可以选择y个通路，即终端设备可以将通路数量从x个增加为y个，x小于y，x为终端设备当前使用的通路数量；当RSRQ低于门限4时，终端设备可以选择z个通路数量，即终端设备可以将通路数量从y个增加为z个。
第一门限可以是协议中预定义的，或者，也可以是终端设备自主确定的，或者也可以是网络设备为终端设备配置的。如果第一门限由网络设备配置，则网络设备可以通过RRC信令、MAC信令和DCI中的一种或多种方式配置。
增加通路数量的门限与减少通路数量的门限可以相同，也可以不同。以第一门限为一个门限进行举例说明，可以理解的是，该方式对第一门限为多个门限的情况也同样适用，为了简洁，此处不再赘述。
如果增加通路数量的门限和减少通路数量的门限相同，如均为门限x。当终端设备接收的信号的RSRQ高于门限x时，终端设备选择n个通路数量，即终端设备可以将通路数量从m个减少为n个；当终端设备接收的信号的RSRQ低于门限x时，终端设备选择m个门限，即终端设备可以将通路数量从n个增加为m个。
如果增加通路数量的门限与减少通路数量的门限不同，如增加通路数量的门限对应门限a、减少通路数量的门限对应门限b，当终端设备接收的信号的RSRQ高于门限b时，终端设备选择n个通路数量，即终端设备可以将通路数量从m个减少为n个。当终端设备接收的信号的RSRQ低于门限a时，终端设备选择m个通路数量，即终端设备可以将通路数量从n个增加为m个。
示例五、第一参数为SINR
终端设备接收的信号的SINR越大，表示下行信号的质量越好，信号干扰越小。终端设备接收的信号的SINR越小，表示下行信号的质量越差，信号干扰越大。
终端设备可以基于SINR，选择目标通路。如果SINR较小，则终端设备可以选择较多数量的通路；如果SINR较大，则终端设备可以选择较少数量的通路。
在一些实施例中，终端设备可以基于终端设备接收的信号的SINR与第一门限，选择目标通路。也就是说，目标通路可以基于终端设备接收的信号的SINR和第一门限之间的关系确定。
第一门限的数量可以为一个或多个，即第一门限可以包括一个门限，也可以包括多个门限。
下面分别针对终端设备减少通路数量和增加通路数量的情况进行描述。
第一门限为减少通路数量的门限
以第一门限包括一个门限为例，当终端设备接收的信号的SINR高于第一门限时，终端设备可以减少通路的数量。另外，第一门限还可以与通路的数量具有对应关系。例如，第一门限与n个通路具有对应关系。当终端设备接收的信号的SINR高于第一门限时，终端设备可以选择n个通路，即终端设备将通路数量从m个减少为n个，m为终端设备当前使用的通路数量，m大于n。
以第一门限包括多个门限为例，假设多个门限包括门限1和门限2，门限1低于门限2。当SINR高于门限1时，终端设备可以减少通路的数量；当SINR高于门限2时，终端设备可以继续减少通路的数量。换句话说，终端设备的通路数量可以进行多次变更。
多个门限可以与多个通路数量之间具有对应关系。终端设备可以基于多个门限与多个通路数量之间的对应关系，以及终端设备接收的信号的SINR，选择目标通路。其中，目标通路的数量为多个通路数量中的一个。
假设门限1与n个通路数量具有对应关系，门限2与k个通路之间具有对应关系，其中，n大于k。终端设备选择的目标通路的数量为n和k中的一个。当SINR高于门限1时，终端设备可以选择n个通路，即终端设备可以将通路数量从m个减少为n个，m大于n，m为终端设备当前使用的通路数量；当SINR高于门限2时，终端设备可以选择k个通路数量，即终端设备可以将通路数量从n个减少为k个。
第一门限可以是协议中预定义的，或者，也可以是终端设备自主确定的，或者也可以是网络设备为终端设备配置的。如果第一门限由网络设备配置，则网络设备可以通过RRC信令、MAC信令和DCI中的一种或多种方式配置。
第一门限为增加通路数量的门限
以第一门限包括一个门限为例，当SINR低于第一门限时，终端设备可以增加通路的数量。另外，第一门限还可以与通路的数量具有对应关系。例如，第一门限与y个通路具有对应关系。当SINR低于第一门限时，终端设备可以选择y个通路，即终端设备将通路数量从x个增加为y个，x为终端设备当前使用的通路数量，x小于y。
以第一门限包括多个门限为例，假设多个门限包括门限3和门限4，门限3高于门限4。当SINR低于门限3时，终端设备可以增加通路的数量；当SINR低于门限4时，终端设备可以继续增加通路的数量。换句话说，终端设备的通路数量可以进行多次变更。
多个门限可以与多个通路数量之间具有对应关系。终端设备可以基于多个门限与多个通路数量之间的对应关系，以及终端设备接收的信号的SINR，选择目标通路。其中，目标通路的数量为多个通路数量中的一个。
假设门限3与y个通路具有对应关系，门限4与z个通路之间具有对应关系，其中，y小于z。终端设备选择的目标通路的数量为y和z中的一个。当SINR低于门限3时，终端设备可以选择y个通 路，即终端设备可以将通路数量从x个增加为y个，x小于y，x为终端设备当前使用的通路数量；当SINR低于门限4时，终端设备可以选择z个通路数量，即终端设备可以将通路数量从y个增加为z个。
第一门限可以是协议中预定义的，或者，也可以是终端设备自主确定的，或者也可以是网络设备为终端设备配置的。如果第一门限由网络设备配置，则网络设备可以通过RRC信令、MAC信令和DCI中的一种或多种方式配置。
增加通路数量的门限与减少通路数量的门限可以相同，也可以不同。以第一门限为一个门限进行举例说明，可以理解的是，该方式对第一门限为多个门限的情况也同样适用，为了简洁，此处不再赘述。
如果增加通路数量的门限和减少通路数量的门限相同，如均为门限x。当终端设备接收的信号的SINR高于门限x时，终端设备选择n个通路数量，即终端设备可以将通路数量从m个减少为n个；当终端设备接收的信号的SINR低于门限x时，终端设备选择m个门限，即终端设备可以将通路数量从n个增加为m个。
如果增加通路数量的门限与减少通路数量的门限不同，如增加通路数量的门限对应门限a、减少通路数量的门限对应门限b，当终端设备接收的信号的SINR高于门限b时，终端设备选择n个通路数量，即终端设备可以将通路数量从m个减少为n个。当终端设备接收的信号的SINR低于门限a时，终端设备选择m个通路数量，即终端设备可以将通路数量从n个增加为m个。
对于终端设备的发射波束和接收波束相同的情况，第一参数可以为上文描述几个示例中的一种或多种。例如，如果终端设备的发射波束和接收波束相同，当通路数量减少时，其波束宽度会变宽，使得终端设备对非峰值方向的干扰的抑制能力减弱，终端设备接收信号的信噪比恶化。因此，当终端设备的发射波束和接收波束为相同波束时，终端设备的发射波束的调整会对接收性能带来影响。
波束选择
当终端设备进行通路数量的调整后，终端设备的波束数量也会发生变化。仍以图3为例，当终端设备使用4个通路与网络设备通信时，终端设备可以产生6个波束(波束1～波束6)，当终端设备使用2个通路与网络设备通信时，终端设备可以产生3个波束(波束a、波束b和波束c)。在波束发生变化后，终端设备该使用哪个波束与网络设备进行通信，目前还没有明确的方案。例如，在减少通路数量之前，终端设备使用波束3与网络设备进行通信，在减少通路数量之后，终端设备应该选择波束a、波束b、波束c中的哪个波束与网络设备进行通信，是亟需解决的问题。
在通路数量发生变化后，终端设备可以在第一波束上与网络设备进行通信。该第一波束为目标通路产生的波束。对应地，如图5所示，在步骤S510、网络设备可以在第二波束上与终端设备进行通信，所述第二波束与终端设备的第一波束对应。如果第一波束为发射波束，则第二波束为与第一波束对应的接收波束。如果第一波束为接收波束，则第二波束为与第一波束对应的发射波束。
第一波束可以是基于以下信息中的一种或多种确定：不同数量的通路产生的波束之间的对应关系；接收波束接收的信号质量或强度；接收波束与发射波束之间的对应关系；或网络设备指示的波束。下面针对上述情况分别进行描述。
不同数量的通路产生的波束之间的对应关系
终端设备可以基于不同数量的通路产生的波束之间的对应关系，确定第一波束。在进行通路调整后，终端设备可以直接根据调整前后波束之间的映射关系，来完成波束的选择。
举例说明，假设通路调整前后波束之间的对应关系如表1所示。表1所示的波束可以为发射波束，也可以为接收波束。
表1
4通路的波束 波束1、波束2 波束3、波束4 波束5、波束6
2通路的波束 波束a 波束b 波束c
由表1可知，波束1、波束2与波束a对应，波束3、波束4与波束b对应，波束5、波束6与波束c对应。如果在通路调整之前，终端设备使用波束1或波束2与网络设备通信，则在通路调整之后，终端设备可以使用波束a与网络设备通信。如果在通路调整之前，终端设备使用波束3或波束4与网络设备通信，则在通路调整之后，终端设备可以使用波束b与网络设备通信。如果在通路调整之前，终端设备使用波束5或波束6与网络设备通信，则在通路调整之后，终端设备可以使用波束c与网络设备通信。
表1所示的波束之间的对应关系可以为发射波束之间的对应关系，也可以为接收波束之间的对应关系，本申请实施例对此不做具体限定。也就是说，表1中的波束1～波束6可以为发射波束，也可以为接收波束，波束a、波束b和波束c可以为发射波束，也可以为接收波束。
接收波束接收的信号质量
终端设备可以基于接收波束接收的信号质量或强度，确定第一波束。终端设备可以使用不同的波束对下行信号的强度或质量进行测量，选择目标波束。该目标波束可以为信号强度和/或信号质量最好的波束。下行信号的强度或质量可以包括下行信号的RSRP、RSRQ、SINR中的一种或多种。波束的下行信号的强度或质量越好，则表示该波束越好。
在通路数量调整之后，终端设备可以在新的通路数量下，使用不同的接收波束对下行信号的强度或质量进行测量。进一步地，终端设备可以基于测量结果，选择目标波束。仍以图3为例，在通路数量调整之后，终端设备对应的波束为波束a、波束b和波束c。终端设备可以使用波束a、波束b和波束c分别对下行信号进行测量，并基于测量结果，从波束a、波束b和波束c中选择出目标波束。
对于第一波束为接收波束的情况，则可以将目标波束确定为第一波束，即该第一波束为目标波束。终端设备可以使用目标波束与网络设备进行通信。
如果接收波束和发射波束为相同的波束，即上述目标波束既是发射波束，也是接收波束，则终端设备可以使用目标波束与网络设备通信。
接收波束与发射波束之间的对应关系
终端设备可以基于接收波束与发射波束之间的对应关系，确定第一波束。如果第一波束为发射波束，终端设备可以先选择接收波束，然后再基于接收波束与发射波束之间的对应关系，确定发射波束。终端设备可以按照上文描述的方式，确定目标接收波束。即终端设备可以基于下行信号的质量或强度，选择目标接收波束。
在确定目标接收波束后，终端设备可以基于接收波束与发射波束之间的对应关系，确定目标发射波束。如果在通路数量调整之后，终端设备对应的接收波束为波束a、波束b、波束c，终端设备对应的发射波束为波束d、波束e、波束f。其中，波束a与波束d对应，波束b与波束e对应，波束c与波束f对应。
如果终端设备通过对波束a、波束b、波束c的下行信号进行测量，选择波束a作为目标接收波束，则根据发射波束与接收波束之间的对应关系，终端设备可以将波束d确定为目标发射波束(即第一波束)。
网络设备指示的波束
终端设备可以基于网络设备指示的波束，确定第一波束。终端设备可以将网络设备指示的波束作为第一波束。例如，如果网络设备向终端设备指示使用波束1进行通信，则终端设备可以使用波束1与网络设备进行通信。
以第一波束为发射波束为例，网络设备可以对终端设备的多个发射波束进行测量，从而选择第一波束。终端设备可以分别在多个发射波束上发射上行信号，网络设备可以对多个发射波束上的信号进行测量，如对信号质量和/或强度进行测量，从而选择出第一波束。在选择出第一波束后，网络设备可以将第一波束指示给终端设备。进一步地，终端设备可以在第一波束上进行上行信号的发射。信号质量和/或强度可以包括RSRP、RSRQ、SINR中的一种或多种。
下面结合图6，对网络设备向终端设备指示波束的方式进行描述。终端设备在多个发射波束上发射上行信号时，可以依次在不同的发射波束上向网络设备发送上行信号。终端设备在多个发射波束上发射上行信号，可以是在网络设备的指示下进行的，或者也可以是终端设备自主发送的。例如，在接收到网络设备发送的指示信息后，终端设备再进行上行信号的发射。
在步骤S606、网络设备指示终端设备在波束1上发射上行信号。
在步骤S608、终端设备在波束1上发射上行信号1。
在步骤S610、网络设备对上行信号1进行测量。
在步骤S612、网络设备指示终端设备在波束2上发射上行信号。
在步骤S614、终端设备在波束2上发射上行信号2。
在步骤S616、网络设备对上行信号2测量。
如果还有其他的波束，则重复上述步骤。此处为了简洁，不再赘述。
在步骤S618、在所有的波束都测量完成后，网络设备可以从多个波束中选择出第一波束。该第一波束可以是信号强度和/或质量最好的波束。
在步骤S620、网络设备向终端设备指示第一波束。
在步骤S622、在接收到网络设备的指示后，终端设备使用第一波束发射上行信号。
终端设备进行通路数量调整时，可以在满足上文描述的任意条件的情况下，进行通路数量的调整。或者，终端设备还可以在网络设备允许进行通路调整的情况下，才能进行通路数量的调整。换句话说，终端设备可以在网络设备允许进行通路调整的情况下，基于第一参数，选择目标通路。
在一些实施例中，网络设备可以向终端设备发送指示信息，该指示信息用于指示网络设备允许终 端设备进行通路调整。在接收到该指示信息的情况下，终端设备基于第一参数，确定目标通路。换句话说，目标通路是在接收到网络设备发送的指示信息的情况下确定的。
以图6为例，在步骤S602、终端设备可以向网络设备发送通路调整请求。终端设备可以在进行通路调整之前，向网络设备发送通路调整请求。例如，终端设备在通过上文描述的方式判断满足通路调整的条件后，可以向网络设备发送通路调整请求。
终端设备在向网络设备发送通路调整请求时，可以在通路调整请求中携带通路调整信息。通路调整信息可以包括通路类型和/或通路数量的调整情况。
通路的类型包括发射通路和/或接收通路。即是对发射通路进行调整，还是对接收通路进行调整。通路调整情况可以包括减少通路数量或增加通路数量的信息。也就是说，该通路调整请求是请求增加通路数量还是减少通路数量。
在步骤S604、网络设备向终端设备发送指示信息。该指示信息用于指示允许终端设备进行通路数量的调整。网络设备可以根据当前的网络状况，确定是允许还是禁止终端设备进行通路调整。
如果网络设备允许终端设备进行通路调整，则网络设备可以向终端设备发送指示信息。如果网络设备不允许终端设备进行通路调整，则网络设备可以不向终端设备发送指示信息，或者网络设备可以向终端设备发送其他指示信息，以指示不允许终端设备进行通路调整。
当然，终端设备也可以在通路调整请求中携带波束调整信息。波束调整信息可以包括波束的类型和/或波束数量的调整情况。
波束的类型包括发射波束和/或接收波束。即是对发射波束进行调整，还是对接收波束进行调整。波束调整情况可以包括减少波束数量或增加波束数量的信息。也就是说，该波束调整请求是请求增加波束数量还是减少波束数量。
在步骤S604、网络设备向终端设备发送指示信息。该指示信息用于指示允许终端设备进行波束数量的调整。网络设备可以根据当前的网络状况，确定是允许还是禁止终端设备进行波束调整。
如果网络设备允许终端设备进行波束调整，则网络设备可以向终端设备发送指示信息。如果网络设备不允许终端设备进行波束调整，则网络设备可以不向终端设备发送指示信息，或者网络设备可以向终端设备发送其他指示信息，以指示不允许终端设备进行波束调整。
除了向终端设备发送指示信息的方式之外，网络设备还可以通过定时器，来指示终端设备是否能够进行通路调整。例如，网络设备可以通过阻止定时器(prohibit timer)来指示终端设备不能进行通路调整的时机。在阻止定时器运行期间内，终端设备不能进行通路数量的调整，在阻止定时器超时后，终端设备可以进行通路数量的调整。也就是说，目标通路可以是在阻止定时器超时的情况下确定的。
当网络设备激活了该阻止定时器后，在该阻止定时器激活期间内，终端设备不能进行通路数量的调整。网络设备可以在接收到终端设备发送的通路调整请求后，确定是否激活阻止定时器。
终端设备还可以向网络设备发送通路调整能力(或天线单元调整能力)信息。网络设备接收到终端设备发送的通路调整能力信息后，可以根据终端设备的能力信息，辅助终端设备进行通路和/或波束的选择。
通路调整能力信息可以包括以下信息中的一种或多种：支持的通路数量、支持的波束数量、不同通路数量对应的波束赋形增益、不同通路数量对应的波束赋形增益差异、不同通路数量对应的峰值发射功率、不同通路数量对应的峰值发射功率差异、不同通路数量对应的球面覆盖、不同通路数量对应的球面覆盖差异。
通路调整能力信息可以包括终端设备支持的通路数量。终端设备支持的通路数量可以包括一种或多种。例如，终端设备支持的通路数量可以为4个。又例如，终端设备支持的通路数量可以为4个或2个，即终端设备的通路数量可以在4个和2个之间进行调整。
通路调整能力信息可以包括终端设备支持的波束数量。终端设备支持的波束数量可以包括一种或多种。例如，终端设备支持的波束数量可以为6个。又例如，终端设备支持的波束数量可以为6个和3个，即终端设备可以在6个波束和3个波束之间进行调整。
可以理解的是，终端设备支持的波束数量与终端设备支持的通路数量具有对应关系。如前所述，如果终端设备支持4个通路，该4个通路对应6个波束，则终端设备支持6个波束。如果终端设备支持2个通路，该2个通路对应3个波束，则终端设备支持3个波束。
通路调整能力信息可以包括不同通路数量对应的波束赋形增益。例如，如果终端设备支持4个通路，则通路调整能力信息可以包括4个通路对应的波束赋形增益。又例如，如果终端设备支持2个通路，则通路调整能力信息可以包括2个通路对应的波束赋形增益。
通路调整能力信息可以包括不同通路数量对应的波束赋形增益差异。例如，如果终端设备支持4个通路和2个通路，4个通路对应的波束赋形增益为a，2个通路对应的波束赋形增益为b，则通路调整 能力信息可以包括a与b之间的差异。
通路调整能力信息可以包括不同通路数量对应的峰值发射功率。例如，如果终端设备支持4个通路，则通路调整能力信息可以包括4个通路对应的峰值发射功率。又例如，如果终端设备支持2个通路，则通路调整能力信息可以包括2个通路对应的峰值发射功率。
通路调整能力信息可以包括不同通路数量对应的峰值发射功率差异。例如，如果终端设备支持4个通路和2个通路，4个通路对应的峰值发射功率为a，2个通路对应的峰值发射功率为b，则通路调整能力信息可以包括a与b之间的差异。
通路调整能力信息可以包括不同通路数量对应的球面覆盖。例如，如果终端设备支持4个通路，则通路调整能力信息可以包括4个通路对应的球面覆盖。又例如，如果终端设备支持2个通路，则通路调整能力信息可以包括2个通路对应的球面覆盖。
通路调整能力信息可以包括不同通路数量对应的球面覆盖差异。例如，如果终端设备支持4个通路和2个通路，4个通路对应的球面覆盖为a，2个通路对应的球面覆盖为b，则通路调整能力信息可以包括a与b之间的差异。
表2示出了一种通路调整能力信息的示例情况。以终端设备支持4个发射通路和2个发射通路为例，终端设备向网络设备上报的能力信息可以如表2所示。
4通路的发射波束 波束1、波束2 波束3、波束4 波束5、波束6
2通路的发射波束 波束a 波束b 波束c
波束赋形差异(dB) H I J
Peak EIRP差异(dB) X Y Z
球面覆盖差异(dB) E F G
如表2所示，终端设备向网络设备上报的能力信息可以包括：4通路的发射波束信息，2通路的发射波束信息，4通路的发射波束与2通路的发射波束之间的对应关系，不同发射波束对应的波束赋形差异，不同发射波束对应的Peak EIRP差异，不同波束对应的球面覆盖差异。
波束1或波束2与波束a之间的波束赋形差异为H，波束3或波束4与波束b之间的波束赋形差异为I，波束5或波束6与波束c之间的波束赋形差异为J。波束1或波束2与波束a之间的Peak EIRP差异为X，波束3或波束4与波束b之间的Peak EIRP差异为Y，波束5或波束6与波束c之间的Peak EIRP差异为Z。波束1或波束2与波束a之间的球面覆盖差异为E，波束3或波束4与波束b之间的球面覆盖差异为F，波束5或波束6与波束c之间的球面覆盖差异为G。
上文结合图1至图6，详细描述了本申请的方法实施例，下面结合图7至图9，详细描述本申请的装置实施例。应理解，方法实施例的描述与装置实施例的描述相互对应，因此，未详细描述的部分可以参见前面方法实施例。
图7是本申请实施例提供的一种终端设备的示意性框图。图7所示的终端设备可以为上文描述的任意一种终端设备。图7所示的终端设备700可以包括选择单元710。
选择单元710，用于基于第一参数，从多个通路中选择目标通路与网络设备进行通信，所述第一参数用于指示所述终端设备的实际发射功率和/或所述终端设备接收的信号强度或质量。
可选地，所述目标通路基于所述第一参数和第一门限之间的关系确定。
可选地，所述第一门限包括一个或多个门限，所述一个或多个门限与一个或多个通路数量之间具有对应关系，所述目标通路的数量为一个或多个通路数量中的一个。
可选地，所述第一门限由网络设备通过以下信令中的至少一种配置：RRC信令、MAC信令、DCI。
可选地，所述第一参数包括以下参数中的至少一种：所述终端设备实际的发射功率、发射功率余量、RSRP、RSRQ、SINR。
可选地，所述目标通路是在接收到网络设备发送的指示信息的情况下确定的，所述指示信息用于指示所述网络设备允许所述终端设备进行通路调整。
可选地，所述目标通路是在阻止定时器超时的情况下确定的。
可选地，所述终端设备700还包括：通信单元720，用于在第一波束上与网络设备进行通信，所述第一波束为所述目标通路产生的波束。
可选地，所述第一波束基于以下信息中的至少一种确定：不同数量的通路产生的波束之间的对应关系；接收波束接收的信号质量或强度；接收波束与发射波束之间的对应关系；网络设备指示的波束。
可选地，所述终端设备700还包括发送单元730，用于向网络设备发送通路调整能力信息。
可选地，所述通路调整能力信息包括以下信息中的至少一种：支持的通路数量、支持的波束数量、不同通路数量对应的波束赋形增益差异、不同通路数量对应的峰值发射功率差异、不同通路数量对应的球面覆盖差异。
可选地，其特征在于，所述终端设备为毫米波终端。
图8是本申请实施例提供的一种网络设备的示意性框图。图8所示的网络设备可以为上文描述的任意一种网络设备。图8所示的网络设备800可以包括通信单元810。
通信单元810，用于通过第二波束与终端设备进行通信，所述第二波束与终端设备的第一波束对应，所述第二波束对应的目标通路基于第一参数确定，所述第一参数用于指示所述终端设备的实际发射功率和/或所述终端设备接收的信号强度或质量。
可选地，所述目标通路基于所述第一参数和第一门限之间的关系确定。
可选地，所述第一门限包括一个或多个门限，所述一个或多个门限与一个或多个通路数量之间具有对应关系，所述目标通路的数量为一个或多个通路数量中的一个。
可选地，所述第一门限由所述网络设备通过以下信令中的至少一种配置：RRC信令、MAC信令、DCI。
可选地，所述第一参数包括以下参数中的至少一种：所述终端设备实际的发射功率、发射功率余量、RSRP、RSRQ、SINR。
可选地，所述目标通路是在接收到所述网络设备发送的指示信息的情况下确定的，所述指示信息用于指示所述网络设备允许所述终端设备进行通路调整。
可选地，所述目标通路是在阻止定时器超时的情况下确定的。
可选地，所述第一波束基于以下信息中的至少一种确定：不同数量的通路产生的波束之间的对应关系；接收波束接收的信号质量或强度；接收波束与发射波束之间的对应关系；所述网络设备指示的波束。
可选地，所述网络设备800还包括：接收单元820，用于接收所述终端设备发送的通路调整能力信息。
可选地，所述通路调整能力信息包括以下信息中的至少一种：支持的通路数量、支持的波束数量、不同通路数量对应的波束赋形增益差异、不同通路数量对应的峰值发射功率差异、不同通路数量对应的球面覆盖差异。
可选地，所述终端设备为毫米波终端。
图9是本申请实施例的装置的示意性结构图。图9中的虚线表示该单元或模块为可选的。该装置900可用于实现上述方法实施例中描述的方法。装置900可以是芯片、终端设备或网络设备。
装置900可以包括一个或多个处理器910。该处理器910可支持装置900实现前文方法实施例所描述的方法。该处理器910可以是通用处理器或者专用处理器。例如，该处理器可以为中央处理单元(central processing unit，CPU)。或者，该处理器还可以是其他通用处理器、数字信号处理器(digital signal processor，DSP)、专用集成电路(application specific integrated circuit，ASIC)、现成可编程门阵列(field programmable gate array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
装置900还可以包括一个或多个存储器920。存储器920上存储有程序，该程序可以被处理器910执行，使得处理器910执行前文方法实施例所描述的方法。存储器920可以独立于处理器910也可以集成在处理器910中。
装置900还可以包括收发器930。处理器910可以通过收发器930与其他设备或芯片进行通信。例如，处理器910可以通过收发器930与其他设备或芯片进行数据收发。
本申请实施例还提供一种计算机可读存储介质，用于存储程序。该计算机可读存储介质可应用于本申请实施例提供的终端或网络设备中，并且该程序使得计算机执行本申请各个实施例中的由终端或网络设备执行的方法。
本申请实施例还提供一种计算机程序产品。该计算机程序产品包括程序。该计算机程序产品可应用于本申请实施例提供的终端或网络设备中，并且该程序使得计算机执行本申请各个实施例中的由终端或网络设备执行的方法。
本申请实施例还提供一种计算机程序。该计算机程序可应用于本申请实施例提供的终端或网络设备中，并且该计算机程序使得计算机执行本申请各个实施例中的由终端或网络设备执行的方法。
应理解，在本申请实施例中，“与A相应的B”表示B与A相关联，根据A可以确定B。但还应理解，根据A确定B并不意味着仅仅根据A确定B，还可以根据A和/或其它信息确定B。
应理解，本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
应理解，在本申请的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过 程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
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指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照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、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够读取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，数字通用光盘(digital video disc，DVD))或者半导体介质(例如，固态硬盘(solid state disk，SSD))等。
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 (58)

  1. 一种无线通信的方法，其特征在于，包括：
    终端设备基于第一参数，从多个通路中选择目标通路与网络设备进行通信，所述第一参数用于指示所述终端设备的实际发射功率和/或所述终端设备接收的信号强度或质量。
  2. 根据权利要求1所述的方法，其特征在于，所述目标通路基于所述第一参数和第一门限之间的关系确定。
  3. 根据权利要求2所述的方法，其特征在于，所述第一门限包括一个或多个门限，所述一个或多个门限与一个或多个通路数量之间具有对应关系，所述目标通路的数量为一个或多个通路数量中的一个。
  4. 根据权利要求2或3所述的方法，其特征在于，所述第一门限由网络设备通过以下信令中的至少一种配置：无线资源控制RRC信令、媒体接入控制MAC信令、下行控制信息DCI。
  5. 根据权利要求1-4中任一项所述的方法，其特征在于，所述第一参数包括以下参数中的至少一种：所述终端设备实际的发射功率、发射功率余量、参考信号接收功率RSRP、参考信号接收质量RSRQ、信号干扰噪声比SINR。
  6. 根据权利要求1-5中任一项所述的方法，其特征在于，所述目标通路是在接收到网络设备发送的指示信息的情况下确定的，所述指示信息用于指示所述网络设备允许所述终端设备进行通路调整。
  7. 根据权利要求1-5中任一项所述的方法，其特征在于，所述目标通路是在阻止定时器超时的情况下确定的。
  8. 根据权利要求1-7中任一项所述的方法，其特征在于，所述方法还包括：
    所述终端设备在第一波束上与网络设备进行通信，所述第一波束为所述目标通路产生的波束。
  9. 根据权利要求8所述的方法，其特征在于，所述第一波束基于以下信息中的至少一种确定：
    不同数量的通路产生的波束之间的对应关系；
    接收波束接收的信号质量或强度；
    接收波束与发射波束之间的对应关系；
    网络设备指示的波束。
  10. 根据权利要求1-9中任一项所述的方法，其特征在于，所述方法还包括：
    所述终端设备向网络设备发送通路调整能力信息。
  11. 根据权利要求10所述的方法，其特征在于，所述通路调整能力信息包括以下信息中的至少一种：支持的通路数量、支持的波束数量、不同通路数量对应的波束赋形增益差异、不同通路数量对应的峰值发射功率差异、不同通路数量对应的球面覆盖差异。
  12. 根据权利要求1-11中任一项所述的方法，其特征在于，所述终端设备为毫米波终端。
  13. 一种无线通信的方法，其特征在于，包括：
    网络设备通过第二波束与终端设备进行通信，所述第二波束与终端设备的第一波束对应，所述第二波束对应的目标通路基于第一参数确定，所述第一参数用于指示所述终端设备的实际发射功率和/或所述终端设备接收的信号强度或质量。
  14. 根据权利要求13所述的方法，其特征在于，所述目标通路基于所述第一参数和第一门限之间的关系确定。
  15. 根据权利要求14所述的方法，其特征在于，所述第一门限包括一个或多个门限，所述一个或多个门限与一个或多个通路数量之间具有对应关系，所述目标通路的数量为一个或多个通路数量中的一个。
  16. 根据权利要求14或15所述的方法，其特征在于，所述第一门限由所述网络设备通过以下信令中的至少一种配置：无线资源控制RRC信令、媒体接入控制MAC信令、下行控制信息DCI。
  17. 根据权利要求13-16中任一项所述的方法，其特征在于，所述第一参数包括以下参数中的至少一种：所述终端设备实际的发射功率、发射功率余量、参考信号接收功率RSRP、参考信号接收质量RSRQ、信号干扰噪声比SINR。
  18. 根据权利要求13-17中任一项所述的方法，其特征在于，所述目标通路是在接收到所述网络设备发送的指示信息的情况下确定的，所述指示信息用于指示所述网络设备允许所述终端设备进行通路调整。
  19. 根据权利要求13-17中任一项所述的方法，其特征在于，所述目标通路是在阻止定时器超时的情况下确定的。
  20. 根据权利要求13-19中任一项所述的方法，其特征在于，所述第一波束基于以下信息中的至少一种确定：
    不同数量的通路产生的波束之间的对应关系；
    接收波束接收的信号质量或强度；
    接收波束与发射波束之间的对应关系；
    所述网络设备指示的波束。
  21. 根据权利要求13-20中任一项所述的方法，其特征在于，所述方法还包括：
    所述网络设备接收所述终端设备发送的通路调整能力信息。
  22. 根据权利要求21所述的方法，其特征在于，所述通路调整能力信息包括以下信息中的至少一种：支持的通路数量、支持的波束数量、不同通路数量对应的波束赋形增益差异、不同通路数量对应的峰值发射功率差异、不同通路数量对应的球面覆盖差异。
  23. 根据权利要求13-22中任一项所述的方法，其特征在于，所述终端设备为毫米波终端。
  24. 一种终端设备，其特征在于，包括：
    选择单元，用于基于第一参数，从多个通路中选择目标通路与网络设备进行通信，所述第一参数用于指示所述终端设备的实际发射功率和/或所述终端设备接收的信号强度或质量。
  25. 根据权利要求24所述的终端设备，其特征在于，所述目标通路基于所述第一参数和第一门限之间的关系确定。
  26. 根据权利要求25所述的终端设备，其特征在于，所述第一门限包括一个或多个门限，所述一个或多个门限与一个或多个通路数量之间具有对应关系，所述目标通路的数量为一个或多个通路数量中的一个。
  27. 根据权利要求25或26所述的终端设备，其特征在于，所述第一门限由网络设备通过以下信令中的至少一种配置：无线资源控制RRC信令、媒体接入控制MAC信令、下行控制信息DCI。
  28. 根据权利要求24-27中任一项所述的终端设备，其特征在于，所述第一参数包括以下参数中的至少一种：所述终端设备实际的发射功率、发射功率余量、参考信号接收功率RSRP、参考信号接收质量RSRQ、信号干扰噪声比SINR。
  29. 根据权利要求24-28中任一项所述的终端设备，其特征在于，所述目标通路是在接收到网络设备发送的指示信息的情况下确定的，所述指示信息用于指示所述网络设备允许所述终端设备进行通路调整。
  30. 根据权利要求24-28中任一项所述的终端设备，其特征在于，所述目标通路是在阻止定时器超时的情况下确定的。
  31. 根据权利要求24-30中任一项所述的终端设备，其特征在于，所述终端设备还包括：
    通信单元，用于在第一波束上与网络设备进行通信，所述第一波束为所述目标通路产生的波束。
  32. 根据权利要求31所述的终端设备，其特征在于，所述第一波束基于以下信息中的至少一种确定：
    不同数量的通路产生的波束之间的对应关系；
    接收波束接收的信号质量或强度；
    接收波束与发射波束之间的对应关系；
    网络设备指示的波束。
  33. 根据权利要求24-32中任一项所述的终端设备，其特征在于，所述终端设备还包括：
    发送单元，用于向网络设备发送通路调整能力信息。
  34. 根据权利要求33所述的终端设备，其特征在于，所述通路调整能力信息包括以下信息中的至少一种：支持的通路数量、支持的波束数量、不同通路数量对应的波束赋形增益差异、不同通路数量对应的峰值发射功率差异、不同通路数量对应的球面覆盖差异。
  35. 根据权利要求24-34中任一项所述的终端设备，其特征在于，所述终端设备为毫米波终端。
  36. 一种网络设备，其特征在于，包括：
    通信单元，用于通过第二波束与终端设备进行通信，所述第二波束与终端设备的第一波束对应，所述第二波束对应的目标通路基于第一参数确定，所述第一参数用于指示所述终端设备的实际发射功率和/或所述终端设备接收的信号强度或质量。
  37. 根据权利要求36所述的网络设备，其特征在于，所述目标通路基于所述第一参数和第一门限之间的关系确定。
  38. 根据权利要求37所述的网络设备，其特征在于，所述第一门限包括一个或多个门限，所述一个或多个门限与一个或多个通路数量之间具有对应关系，所述目标通路的数量为一个或多个通路数量中的一个。
  39. 根据权利要求37或38所述的网络设备，其特征在于，所述第一门限由所述网络设备通过以 下信令中的至少一种配置：无线资源控制RRC信令、媒体接入控制MAC信令、下行控制信息DCI。
  40. 根据权利要求36-39中任一项所述的网络设备，其特征在于，所述第一参数包括以下参数中的至少一种：所述终端设备实际的发射功率、发射功率余量、参考信号接收功率RSRP、参考信号接收质量RSRQ、信号干扰噪声比SINR。
  41. 根据权利要求36-40中任一项所述的网络设备，其特征在于，所述目标通路是在接收到所述网络设备发送的指示信息的情况下确定的，所述指示信息用于指示所述网络设备允许所述终端设备进行通路调整。
  42. 根据权利要求36-40中任一项所述的网络设备，其特征在于，所述目标通路是在阻止定时器超时的情况下确定的。
  43. 根据权利要求36-42中任一项所述的网络设备，其特征在于，所述第一波束基于以下信息中的至少一种确定：
    不同数量的通路产生的波束之间的对应关系；
    接收波束接收的信号质量或强度；
    接收波束与发射波束之间的对应关系；
    所述网络设备指示的波束。
  44. 根据权利要求36-43中任一项所述的网络设备，其特征在于，所述网络设备还包括：
    接收单元，用于接收所述终端设备发送的通路调整能力信息。
  45. 根据权利要求44所述的网络设备，其特征在于，所述通路调整能力信息包括以下信息中的至少一种：支持的通路数量、支持的波束数量、不同通路数量对应的波束赋形增益差异、不同通路数量对应的峰值发射功率差异、不同通路数量对应的球面覆盖差异。
  46. 根据权利要求36-45中任一项所述的网络设备，其特征在于，所述终端设备为毫米波终端。
  47. 一种终端设备，其特征在于，包括存储器、处理器和通信接口，所述存储器用于存储程序，所述处理器用于调用所述存储器中的程序，使得所述终端设备执行如权利要求1-12中任一项所述的方法。
  48. 一种网络设备，其特征在于，包括存储器和处理器和通信接口，所述存储器用于存储程序，所述处理器用于调用所述存储器中的程序，使得所述网络设备执行如权利要求13-23中任一项所述的方法。
  49. 一种装置，其特征在于，包括处理器，用于从存储器中调用程序，以执行如权利要求1-12中任一项所述的方法。
  50. 一种装置，其特征在于，包括处理器，用于从存储器中调用程序，以执行如权利要求13-23中任一项所述的方法。
  51. 一种芯片，其特征在于，包括处理器，用于从存储器调用程序，使得安装有所述芯片的设备执行如权利要求1-12中任一项所述的方法。
  52. 一种芯片，其特征在于，包括处理器，用于从存储器调用程序，使得安装有所述芯片的设备执行如权利要求13-23中任一项所述的方法。
  53. 一种计算机可读存储介质，其特征在于，其上存储有程序，所述程序使得计算机执行如权利要求1-12中任一项所述的方法。
  54. 一种计算机可读存储介质，其特征在于，其上存储有程序，所述程序使得计算机执行如权利要求13-23中任一项所述的方法。
  55. 一种计算机程序产品，其特征在于，包括程序，所述程序使得计算机执行如权利要求1-12中任一项所述的方法。
  56. 一种计算机程序产品，其特征在于，包括程序，所述程序使得计算机执行如权利要求13-23中任一项所述的方法。
  57. 一种计算机程序，其特征在于，所述计算机程序使得计算机执行如权利要求1-12中任一项所述的方法。
  58. 一种计算机程序，其特征在于，所述计算机程序使得计算机执行如权利要求13-23中任一项所述的方法。
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