WO2023185466A1 - 一种通信方法及装置 - Google Patents

一种通信方法及装置 Download PDF

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Publication number
WO2023185466A1
WO2023185466A1 PCT/CN2023/081551 CN2023081551W WO2023185466A1 WO 2023185466 A1 WO2023185466 A1 WO 2023185466A1 CN 2023081551 W CN2023081551 W CN 2023081551W WO 2023185466 A1 WO2023185466 A1 WO 2023185466A1
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WIPO (PCT)
Prior art keywords
information
network device
energy
energy saving
cell
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PCT/CN2023/081551
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English (en)
French (fr)
Inventor
酉春华
王珏
范强
娄崇
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华为技术有限公司
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Publication of WO2023185466A1 publication Critical patent/WO2023185466A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point
    • 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
    • H04W52/0203—Power saving arrangements in the radio access network or backbone network of wireless communication networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present application relates to the field of communication technology, and in particular, to a communication method and device.
  • DC technology means that a single terminal device can establish connections with two network devices at the same time.
  • One of the two network devices serves as the primary network device of the terminal device, and the other network device serves as the secondary network device of the terminal device.
  • the present application provides a communication method and device for considering energy-saving information of candidate auxiliary network devices when adding auxiliary network devices to terminal devices, thereby facilitating the addition of appropriate network devices as auxiliary network devices for terminal devices.
  • embodiments of the present application provide a communication method, which can be applied to a first network device or a module in the first network device.
  • the first network device A network device receives energy saving information of M cells from a second network device, where the M cells are cells managed by the second network device; and, based on the energy saving information of the M cells, sends a message to the second network device.
  • the network device sends second request information, the second request information is used to request to add N cells among the M cells to the secondary cell group of the terminal device; where M and N are positive integers, and N is less than Or equal to M.
  • the first network device can decide whether to request to add the second network device as the auxiliary network device of the terminal device based on the energy saving information of the M cells of the second network device. For example, if the M cells are all deeply energy-saving, such In this case, it is very likely that the second network device will not be able to meet the data transmission requirements of the terminal device, and the first network device may not request to add the second network device as a secondary network device of the terminal device. In this way, since the first network device considers the energy saving information of the cells managed by the candidate secondary network device when adding the secondary network device to the terminal device, it is convenient to add the appropriate network device as the secondary network device of the terminal device.
  • the method further includes: sending first request information to the second network device, where the first request information includes identifiers of the M cells, and the first request information is used to Request energy saving information of the M cells; wherein the M cells are W cells reported by the first network device according to the terminal device The measurement results are selected from the W cells; W is a positive integer, and W is greater than or equal to M.
  • the M cells include a first cell, and the energy saving information of the first cell includes at least one of the following:
  • the energy-saving state information is used to indicate whether the first cell is in an energy-saving state
  • the energy-saving direction information is used to indicate the energy-saving direction of the first cell, and the energy-saving direction includes the uplink direction and/or the downlink direction;
  • the energy saving mode information is used to indicate the energy saving mode used by the first cell, and the energy saving mode is a semi-static energy saving mode, a dynamic energy saving mode or a hybrid energy saving mode;
  • Energy saving degree information the energy saving degree information is used to indicate the energy saving degree of the first cell
  • the energy saving object information is used to indicate the energy saving object of the first cell, the energy saving object includes at least one of the following: synchronization signal/physical broadcast channel block SSB, random access signal, configuration authorization, system information , sounding reference signal SRS, physical uplink control channel PUCCH;
  • the energy-saving carrier information is used to indicate unavailable carriers of the first cell
  • the energy-saving resource information is used to indicate unavailable airspace resources of the first cell
  • the maximum data transmission rate that the first cell can provide for the terminal device is the maximum data transmission rate that the first cell can provide for the terminal device.
  • the energy-saving mode information includes at least one of the following:
  • the unavailable airspace resources of the first cell include at least one of the following:
  • the method further includes: receiving first indication information from the second network device, the first indication information indicating that the second network device has updated at least one of the N cells. Energy saving information for a community.
  • the first indication information is carried in a secondary base station release request message.
  • the first indication information includes updated energy saving information of the at least one cell; the method further includes: releasing the first energy saving information according to the updated energy saving information of the at least one cell.
  • the second network device can notify the first network device after updating the energy saving information of at least one cell, so that when the cell managed by the second network device cannot meet the data transmission needs of the terminal device due to the energy saving information update, , the first network device can adjust the data transmission mode in time, such as releasing the second network device, and try to add other auxiliary network devices to avoid affecting the data transmission of the terminal device.
  • the method further includes: receiving third request information from the second network device, The third request information is used to request to update the energy saving information of at least one cell among the N cells; according to the third request information, second instruction information is sent to the second network device, and the second instruction information Indicate that the second network device is allowed to update the energy saving information of the at least one cell.
  • the second network device can first request from the first network device whether it is allowed to update the energy saving information of at least one cell. If the first network device allows it, the second network device can update the energy saving information of at least one cell, so that the energy saving information of at least one cell can be updated. This effectively prevents the second network device from privately updating the energy saving information of at least one cell and affecting the data transmission of the terminal device.
  • the method further includes: sending fourth request information to the second network device, where the fourth request information is used to request the second network device to update at least one of the N cells. Energy saving information for a community.
  • At least one of the following is also included: determining that the data transmission requirements of the terminal device have changed; determining that key data of the terminal device is about to arrive or has arrived. ; Determine that the amount of data cached in the terminal device of the first network device is greater than or equal to the threshold.
  • the second network device can first request from the first network device whether it is allowed to update the energy saving information of at least one cell. If the first network device allows it, the second network device can update the energy saving information of at least one cell. That is to say, the first network device can control the second network device to update the energy saving information of at least one cell, thereby effectively ensuring that the second network device can save energy without affecting the data transmission of the terminal device.
  • embodiments of the present application provide a communication method, which can be applied to a second network device or a module in the second network device.
  • the first The second network device sends energy saving information of M cells to the first network device, and the M cells are cells managed by the second network device; and receives the energy saving information sent by the first network device based on the energy saving information of the M cells.
  • Second request information the second request information is used to request to add N cells among the M cells to the secondary cell group of the terminal device; where M and N are positive integers, and N is less than or equal to M .
  • the method further includes: receiving first request information from the first network device, where the first request information includes identifiers of the M cells, and the first request information is To request the energy saving information of the M cells; wherein the M cells are selected by the first network device from the W cells according to the measurement results of the W cells reported by the terminal device; W is A positive integer, and W is greater than or equal to M.
  • the M cells include a first cell, and the energy saving information of the first cell includes at least one of the following:
  • the energy-saving state information is used to indicate whether the first cell is in an energy-saving state
  • the energy-saving direction information is used to indicate the energy-saving direction of the first cell, and the energy-saving direction includes the uplink direction and/or the downlink direction;
  • the energy saving mode information is used to indicate the energy saving mode used by the first cell, and the energy saving mode is a semi-static energy saving mode, a dynamic energy saving mode or a hybrid energy saving mode;
  • Energy saving degree information the energy saving degree information is used to indicate the energy saving degree of the first cell
  • the energy saving object information is used to indicate the energy saving object of the first cell, the energy saving object includes at least one of the following: SSB, random access signal, configuration authorization, system information, SRS, PUCCH;
  • the energy-saving carrier information is used to indicate unavailable carriers of the first cell
  • the energy-saving resource information is used to indicate unavailable airspace resources of the first cell
  • the maximum data transmission rate that the first cell can provide for the terminal device is the maximum data transmission rate that the first cell can provide for the terminal device.
  • the energy saving mode information includes At least one of the following:
  • the unavailable airspace resources of the first cell include at least one of the following:
  • the method further includes: sending first indication information to the first network device, the first indication information indicating that the second network device has updated at least one of the N cells.
  • Community energy saving information
  • the first indication information includes updated energy saving information of the at least one cell.
  • the method further includes: sending third request information to the first network device, where the third request information is used to request to update the energy saving information of at least one of the N cells; Second indication information is received from the first network device, and the second indication information indicates that the second network device is allowed to update the energy saving information of the at least one cell.
  • the method further includes: receiving fourth request information from the first network device, the fourth request information being used to request the second network device to update the N cells Energy saving information for at least one community.
  • the fourth request information includes a reason value, and the reason value is used to indicate at least one of the following: the data transmission requirements of the terminal device change; the key data of the terminal device is about to arrive or has arrived; The amount of data cached in the terminal device of the first network device is greater than or equal to the threshold.
  • the method claimed in the second aspect corresponds to the method claimed in the first aspect, and the beneficial effects of the relevant technical features can be referred to the description in the first aspect, which will not be described again.
  • the present application provides a communication device, where the communication device is, for example, a first network device or a second network device.
  • the communication device is provided with the functions related to the first aspect or the second aspect.
  • the communication device includes modules or units or means corresponding to the operations related to the first aspect or the second aspect.
  • the functions or units Or the means can be implemented by software, or implemented by hardware, or the corresponding software can be implemented by hardware.
  • the communication device includes a processing unit and a communication unit, where the communication unit can be used to send and receive signals to implement communication between the communication device and other devices.
  • the communication unit is used to send messages to a terminal.
  • the device sends system information; the processing unit may be used to perform some internal operations of the communication device.
  • the functions performed by the processing unit and the communication unit may correspond to the operations related to the above-mentioned first aspect or the second aspect.
  • the communication device includes a processor, and the processor can be coupled to a memory.
  • the memory may store necessary computer programs or instructions to implement the functions involved in the first aspect or the second aspect.
  • the processor can execute computer programs or instructions stored in the memory. When the computer programs or instructions are executed, The communication device is caused to implement the method in any possible design or implementation manner of the first aspect or the second aspect.
  • the communication device includes a processor and a memory, and the memory can store the necessary computer programs or instructions to implement the functions involved in the first aspect or the second aspect.
  • the processor can execute the computer program or instructions stored in the memory. When the computer program or instructions are executed, the communication device implements any possible design or implementation of the first aspect or the second aspect. method.
  • the communication device includes a processor and an interface circuit, wherein the processor is configured to communicate with other devices through the interface circuit and execute any possible design or implementation of the first aspect or the second aspect. method within the method.
  • the processor can be implemented by hardware or software.
  • the processor can be a logic circuit, an integrated circuit, etc.; when implemented by software, the processor can be implemented by software.
  • the processor may be a general-purpose processor implemented by reading software code stored in memory.
  • the above processors may be one or more, and the memories may be one or more.
  • the memory can be integrated with the processor, or the memory can be provided separately from the processor. During the specific implementation process, the memory and the processor can be integrated on the same chip, or they can be respectively provided on different chips. The embodiments of this application do not limit the type of memory and the arrangement method of the memory and the processor.
  • the present application provides a communication system, which may include a first network device and a second network device.
  • the first network device is configured to perform the method in any possible design of the first aspect
  • the second network device is configured to perform the method in any possible design of the second aspect.
  • the present application provides a computer-readable storage medium.
  • Computer-readable instructions are stored in the computer storage medium.
  • the computer reads and executes the computer-readable instructions, the computer is caused to execute the above-mentioned first aspect or
  • the second aspect is any possible method in the design.
  • the present application provides a computer program product, which when a computer reads and executes the computer program product, causes the computer to execute the method in any possible design of the first aspect or the second aspect.
  • the present application provides a chip.
  • the chip includes a processor.
  • the processor is coupled to a memory and is used to read and execute a software program stored in the memory to implement the first aspect or the second aspect. any possible design approach.
  • Figure 1 is a schematic diagram of a network architecture applicable to the embodiment of the present application.
  • Figure 2A is a schematic diagram of a CU-DU separation architecture provided by an embodiment of the present application.
  • Figure 2B is a schematic diagram of another CU-DU separation architecture provided by an embodiment of the present application.
  • Figure 3 is a schematic diagram of data wireless bearer corresponding to dual connectivity provided by the embodiment of the present application.
  • Figure 4 is a schematic flowchart of adding a secondary network device according to an embodiment of the present application.
  • Figure 5 is a schematic flow chart corresponding to the communication method provided by the embodiment of the present application.
  • Figure 6 is a schematic diagram of the semi-static energy-saving mode provided by the embodiment of the present application.
  • Figure 7 is a schematic flow chart corresponding to the communication method provided by the embodiment of the present application.
  • Figure 8 is a possible exemplary block diagram of the device involved in the embodiment of the present application.
  • Figure 9 is a schematic structural diagram of a network device provided by an embodiment of the present application.
  • FIG. 1 is a schematic diagram of a communication system applicable to the embodiment of the present application.
  • the communication system 10 includes one or more network devices 20 and one or more terminal devices 30 .
  • the interface between the network device and the terminal device may be a Uu interface (or called an air interface), and data transmission may be performed between the network device 20 and the terminal device 30 through air interface resources.
  • Terminal equipment also known as user equipment (UE), mobile station (MS), mobile terminal (MT), etc.
  • UE user equipment
  • MS mobile station
  • MT mobile terminal
  • terminal devices refers to equipment that provides voice and/or data connectivity to users.
  • handheld devices vehicle-mounted devices, etc. with wireless connection capabilities.
  • some examples of terminal devices are: mobile phones, tablets, laptops, PDAs, mobile internet devices (MID), wearable devices, virtual reality (VR) devices, augmented reality devices Augmented reality (AR) equipment, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical surgery, smart grid Wireless terminals in transportation safety (transportation safety), wireless terminals in smart city (smart city), wireless terminals in smart home (smart home), etc.
  • transportation safety transportation safety
  • smart city smart city
  • smart home smart home
  • Network equipment refers to the radio access network (RAN) node (or device) that connects terminals to the wireless network, and can also be called a base station.
  • RAN nodes are: Node B (NB), evolved Node B (gNB), transmission reception point (TRP), evolved Node B (eNB), Radio network controller (RNC), base station controller (BSC), base transceiver station (BTS), home base station (e.g., home evolved NodeB, or home Node B, HNB) , baseband unit (base band unit, BBU), or wireless fidelity (wireless fidelity, Wifi) access point (access point, AP), etc.
  • NB Node B
  • gNB evolved Node B
  • TRP transmission reception point
  • eNB evolved Node B
  • RNC Radio network controller
  • BSC base station controller
  • BTS base transceiver station
  • home base station e.g., home evolved NodeB, or home Node B, HNB
  • BBU baseband unit
  • wireless fidelity
  • the control plane protocol layer structure can include a radio resource control (RRC) layer and a packet data convergence protocol (PDCP) layer.
  • RRC radio resource control
  • PDCP packet data convergence protocol
  • the user plane protocol layer structure can include the PDCP layer, RLC layer, and MAC layer and physical layer.
  • a service data adaptation protocol (SDAP) layer can also be included above the PDCP layer.
  • SDAP service data adaptation protocol
  • the SDAP layer, PDCP layer, RLC layer, MAC layer, and physical layer can also be collectively referred to as the access layer.
  • the access layer For specific descriptions of each of the above protocol layers, please refer to the relevant technical specifications of 3GPP.
  • the network device may include one or more centralized units (CU) and one or more distributed units (DU).
  • Multiple DUs may be composed of one CU centralized control, this architecture can be called CU-DU separation architecture.
  • the interface between CU and DU may be called the F1 interface, where the control panel (CP) interface may be the F1-C interface and the user panel (UP) interface may be the F1-U interface.
  • CP control panel
  • UP user panel
  • the processing functions of CU and DU can be divided according to the protocol layer of the wireless network: For example, as shown in Figure 2A, the PDCP layer and The functions of the above protocol layers are set in the CU, and the functions of the protocol layers below the PDCP layer (such as the RLC layer and MAC layer, etc.) are set in the DU. It can be understood that the above-mentioned division of the processing functions of CU and DU according to protocol layers is only an example, and can also be divided in other ways.
  • the functions of the protocol layers above the RLC layer are set in the CU, RLC layer and the following protocol layers.
  • the functions are set in DU.
  • CU or DU can be divided into functions with more protocol layers.
  • CU or DU can also be divided into partial processing functions with protocol layers. The embodiments of the present application do not limit this.
  • the functions of the CU can be implemented by one entity, or by different entities.
  • the functions of CU can be further divided, that is, the control plane and the user plane are separated and implemented through different entities, namely the control plane CU entity (ie CU-CP entity) and the user plane CU entity (ie CU-UP entity).
  • the CU-CP entity and the CU-UP entity can be coupled with the DU to jointly complete the functions of the RAN equipment.
  • the interface between the CU-CP entity and the CU-UP entity can be the E1 interface
  • the interface between the CU-CP entity and the DU can be the F1-C interface
  • the interface between the CU-UP entity and the DU can be the F1-U interface.
  • a DU and a CU-UP can be connected to a CU-CP.
  • one DU can be connected to multiple CU-UPs
  • one CU-UP can be connected to multiple DUs.
  • one CU-UP can also be connected to the collaborative Multiple CU-CPs improve the flexibility of CU-CPs.
  • Figure 2B is a schematic diagram of the distribution of an air interface protocol stack. As shown in Figure 2B, for both the user plane and the control plane, the air interface protocol stack can be RLC, MAC, and PHY in DU, and PDCP and above protocol layers in CU.
  • the signaling generated by the CU can be sent to the terminal device through DU, or the signaling generated by the terminal device can be sent to the CU through DU.
  • the DU can directly encapsulate the signaling through the protocol layer and transparently transmit it to the terminal device or CU without parsing the signaling.
  • the sending or receiving of signaling by the DU includes such a scenario.
  • RRC or PDCP layer signaling will eventually be processed into physical layer data and sent to the terminal device, or converted from the received physical layer data.
  • the RRC layer or PDCP layer signaling can also be considered to be sent by the DU, or by the DU and the radio frequency device.
  • the embodiments of the present application do not limit the number of network devices and terminal devices included in the communication system, and in addition to network devices and terminal devices, the above communication system may also include other devices or network elements. , such as core network equipment, relay equipment, etc., the embodiments of the present application are not limited to this.
  • the communication system shown in Figure 1 above can support various radio access technologies (RAT).
  • the communication system shown in Figure 1 can be a fourth generation (4th generation, 4G) communication system (also known as Long term evolution (long term evolution, LTE) communication system), 5G communication system (also called new radio (NR) communication system), wireless fidelity (wireless fidelity, Wi-Fi) system, or future-oriented evolutionary system.
  • 4G fourth generation
  • LTE Long term evolution
  • NR new radio
  • wireless fidelity wireless fidelity
  • Wi-Fi wireless fidelity
  • future-oriented evolutionary system future-oriented evolutionary system.
  • the communication system and business scenarios described in the embodiments of this application are for the purpose of explaining the technical solutions of the embodiments of this application more clearly, and do not constitute a limitation on the technical solutions provided by the embodiments of this application.
  • Those of ordinary skill in the art will know that with the communication With the evolution of the system and the emergence of new business scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.
  • a terminal device can establish a connection with two network devices (that is, establish a dual connection).
  • One of the two network devices serves as the main network device of the terminal device, and the other network device serves as the main network device of the terminal device.
  • the service cell group provided by the main network device for the terminal device can be called the master cell group (MCG).
  • MCG master cell group
  • SCG secondary cell group
  • the MCG may include at least one cell.
  • the cell is the primary cell (PCell) of the terminal device; the terminal device may perform an initial connection establishment process or start a connection re-establishment process in the PCell.
  • the SCG can include at least one cell.
  • the SCG only includes one cell the cell is the primary secondary cell (PSCell) of the terminal device; the terminal device can perform random access on the PSCell, or when there is no need to perform random access on the PSCell.
  • the terminal device can directly transmit the physical uplink shared channel (PUSCH) on the PSCell.
  • PUSCH physical uplink shared channel
  • PCell and PSCell can be collectively referred to as special cells (SpCell).
  • SpCell special cells
  • MCG or SCG contains multiple cells
  • one of them is SpCell.
  • Cells other than SpCell are called secondary cells (SCell).
  • SCell and SpCell in each cell group perform carrier aggregation and together serve as a terminal.
  • the device provides services.
  • the data radio bearer (DRB) corresponding to dual connectivity can include MCG bearer (MCG bearer), SCG bearer (SCG bearer), and split bearer (split bearer).
  • MCG bearer means that the RLC/MAC entity of the DRB is only on the primary network device
  • SCG bearer means that the RLC/MAC entity of the DRB is only on the secondary network device
  • split bearer means that the RLC/MAC entity of the DRB is only on the secondary network device. Both the primary network device and the secondary network device are available.
  • part of the PDU sessions of the terminal device and/or part of the quality of service (QoS) flows in the PDU session can be shunted from the primary network device to the secondary network device, such as QoS flows that are diverted to secondary network devices can be mapped to SCG bearer or splitbearer; some QoS flows that are not diverted can be mapped to MCG bearer or splitbearer.
  • QoS quality of service
  • the data in the QoS flow mapped to the SCG bearer can be all sent to the terminal device by the secondary network device on the cells in the secondary cell group, and the data in the QoS flow mapped to the split bearer can be partially sent by the secondary network device on the cells in the secondary cell group. The other part can be sent to the terminal equipment by the main network equipment on the cells in the main cell group.
  • the data in the QoS flow mapped to the MCG bearer can be sent by the main network equipment on the main cell group. sent to the terminal equipment on the cells in the cell group.
  • network equipment can determine whether to perform energy-saving operations based on load information, such as turning off cells.
  • the load information may include the usage of wireless resources, the number of users, the number of RRC connections, etc.
  • network equipment can shut down cells covering the area where the office building is located at night based on load information.
  • the network equipment can also perform more fine-grained energy-saving operations.
  • the network equipment can perform shutdown operations in the time domain, frequency domain, and air domain, thereby making it more efficient. Effectively reduce the power consumption of network equipment.
  • the terminal device can establish a connection with two network devices. Specifically, the terminal device and two network devices There are many specific implementations for establishing a connection between network devices. For example, the terminal device can first establish a connection with the main network device, and then the main network device can add a secondary network device to the terminal device through the secondary base station addition process. A possible process is described below in conjunction with Figure 4.
  • Figure 4 is a schematic flowchart of adding a secondary network device according to an embodiment of the present application. As shown in Figure 4, the process may include:
  • the first network device sends measurement configuration information to the terminal device.
  • the measurement configuration information may include frequency information that needs to be measured by the terminal device; accordingly, the terminal device may receive the measurement configuration information and perform measurement.
  • the first network device may send the measurement configuration information to the terminal device through an RRC reconfiguration message.
  • the terminal device reports a measurement report to the first network device.
  • the measurement report may include identifiers of W cells and measurement results of W cells; accordingly, the first network device may receive the measurement report.
  • W is a positive integer.
  • the W cells may be cells managed by the same network device or may be cells managed by different network devices.
  • the W cells may include at least one cell managed by the second network device.
  • the measurement result of the cell may include the reference signal receiving power (RSRP) or reference signal receiving quality (RSRQ) of the cell, which is not specifically limited.
  • RSRP reference signal receiving power
  • RSRQ reference signal receiving quality
  • the first network device sends a SeNB addition request message to the second network device based on the measurement results of W cells.
  • the SeNB addition request message is used to request to add the second network device as the secondary network of the terminal device. equipment.
  • the first network device may determine whether to request to add the second network device as a secondary network device based on the measurement results of W cells. If the first network device decides to request to add the second network device as the secondary network device, it can send a secondary base station addition request message to the second network device; if the first network device decides not to request to add the second network device as the secondary network device, then The secondary base station addition request message may not be sent. In this case, the first network device may subsequently try to add other network devices as secondary network devices of the terminal device.
  • the first network device determines whether to request to add the second network device as a secondary network device. For example, after the first network device determines that the preset conditions are met, it may decide to request to add the second network device as a secondary network device.
  • the preset condition may include condition 1, and the first network device determining that condition 1 is met may mean that the first network device determines that the measurement results of M cells managed by the second network device among the W cells are all greater than or equal to threshold 1.
  • M is a positive integer
  • M is less than or equal to W.
  • the preset condition may also include other possible conditions, such as condition 2.
  • condition 2 may mean that the first network device determines that the secondary network device needs to offload the data of the terminal device. There may be multiple situations in which the first network device determines that the secondary network device needs to offload the data of the terminal device. Three possible situations are described here.
  • Scenario 1 The first network device determines that the service data that is about to arrive or has arrived at the terminal device requires a high transmission rate (for example, the transmission rate is greater than or equal to threshold 2), and then it may determine that the secondary network device needs to offload the data of the terminal device.
  • a high transmission rate for example, the transmission rate is greater than or equal to threshold 2
  • Scenario 2 The first network device determines that the service data that is about to arrive or has arrived at the terminal device requires high reliability (for example, the reliability is greater than or equal to threshold 3), and then it may determine that the secondary network device needs to offload the data of the terminal device.
  • the reliability for example, the reliability is greater than or equal to threshold 3
  • the above-mentioned data with higher transmission rate requirements or higher reliability requirements can be collectively referred to as critical data.
  • higher requirements for transmission rate can also be understood as higher requirements for transmission delay.
  • Scenario 3 The first network device determines that the amount of data of the terminal device cached by the first network device is greater than or equal to threshold 4, Then it can be determined that the secondary network device needs to offload the data of the terminal device.
  • the secondary base station addition request message may include identifiers of M cells.
  • the secondary base station addition request message may also include other possible information, such as measurement results of M cells, which are not specifically limited.
  • the secondary base station addition request message is used to request to add a second network device as a secondary network device of the terminal device.
  • the secondary base station addition request message is used to request to add M cells to the secondary cell group of the terminal device.
  • S404 After receiving the secondary base station addition request message from the first network device, if the second network device determines that it can accommodate the terminal device, it may allocate wireless resources to the terminal device and send the secondary base station addition request confirmation to the first network device ( SeNB addition request acknowledgment) message.
  • the confirmation message may include wireless resource information of M cells allocated by the second network device to the terminal device.
  • the first network device sends secondary base station addition instruction information to the terminal device, and the secondary base station addition instruction information instructs to add the second network device as the secondary network device of the terminal device.
  • the secondary base station addition instruction information may be carried in an RRC reconfiguration message, and the secondary base station addition instruction information may include radio resource information of M cells allocated by the second network device to the terminal device, and is not specifically limited.
  • the terminal device initiates random access to the second network device on one of the M cells (the cell is the PSCell), and then establishes a connection with the second network device.
  • the first network device and the second network device transmit data of the terminal device.
  • the first network device can add the second network device as a secondary network device to the terminal device.
  • the M cells of the second network device may be in an energy-saving state.
  • the first network device adds the second network device as the secondary network device of the terminal device through the process shown in Figure 4, it may be difficult to meet the data transmission needs of the terminal device (such as the arrival of key data of the terminal device).
  • M cells are in an energy-saving state, it is difficult to meet the transmission requirements of key data).
  • embodiments of the present application provide a communication method to consider energy-saving information of candidate auxiliary network devices when adding auxiliary network devices to a terminal device, thereby facilitating the addition of appropriate network devices as auxiliary network devices of the terminal device.
  • Figure 5 is a schematic flowchart corresponding to the communication method provided in Embodiment 1 of the present application. As shown in Figure 5, the method includes:
  • the first network device sends first request information to the second network device.
  • the first request information includes the identifiers of M cells; accordingly, the second network device can receive the first request information, and the first request information is used to request M Energy saving information for each community.
  • the M cells are cells managed by the second network device, or it can also be understood that the second network device provides services for the M cells.
  • the first network device may send the first request information to the second network device.
  • the first network device meeting the preset conditions reference may be made to the description of Figure 4 .
  • the first network device and the second network device may be network devices under the same wireless access technology, for example, both are network devices in a 5G communication system or both are network devices in a 4G communication system, or The first network device and the second network device may also be network devices under different wireless access technologies. For example, one is a network device in a 4G communication system and the other is a network device in a 5G communication system.
  • the second network device sends the energy saving information of M cells to the first network device; accordingly, the first network device can receive the energy saving information of M cells.
  • the M cells include the first cell.
  • the energy saving information of the first cell may include Energy-saving status information and/or auxiliary information, the energy-saving status information is used to indicate whether the first cell is in the energy-saving state, and the auxiliary information includes relevant information of the first cell in the energy-saving state.
  • the energy-saving information of the first cell may also include auxiliary information; when the energy-saving status information is used to indicate that the first cell is in a non-energy-saving state, the energy-saving information of the first cell does not Include supporting information.
  • the energy saving information of the first cell may also include auxiliary information but not the energy saving state information.
  • the auxiliary information may be used to implicitly indicate that the first cell is in the energy saving state.
  • the auxiliary information may include at least one of the following (1) to (7).
  • the energy-saving direction information is used to indicate the energy-saving direction of the first cell, and the energy-saving direction includes the uplink direction and/or the downlink direction.
  • the energy-saving direction is the uplink direction, it means that the second network device performs energy-saving operations in the uplink direction of the first cell; when the energy-saving direction is the downlink direction, it means that the second network device performs energy-saving operations in the downlink direction of the first cell. for energy-saving operation.
  • the energy saving mode information is used to indicate the energy saving mode of the first cell.
  • the energy saving mode of the first cell may be a semi-static energy saving mode, a dynamic energy saving mode or a hybrid energy saving mode.
  • the semi-static energy-saving mode means that within one cycle of the semi-static energy-saving mode, some resources are available and some resources are unavailable.
  • Dynamic energy-saving mode means that available resources and unavailable resources appear dynamically without a fixed cycle.
  • Hybrid energy-saving mode refers to the configuration of semi-static energy-saving mode and dynamic energy-saving mode at the same time.
  • the resource described here may refer to a physical resource block (PRB) or a symbol or a time slot.
  • the resource is a PRB as an example.
  • the unavailability involved in the embodiments of this application refers to the unavailability caused by the second network device performing shutdown for the purpose of energy saving.
  • the energy saving mode information may indicate the energy saving mode of the first cell in multiple ways.
  • the energy-saving mode information may include two bits; when the value of the two bits is 00, it indicates that the energy-saving mode is a semi-static energy-saving mode; when the value of the two bits is 01, it indicates that the energy-saving mode is a dynamic energy-saving mode. When the value of the two bits is 11, it indicates that the energy-saving mode is a hybrid energy-saving mode.
  • the energy-saving mode information may also include at least one of the following: the period of the semi-static energy-saving mode; the proportion of time domain resources (such as symbols or time slots) available in a period; The proportion of time domain resources used; the proportion of PRBs available within a cycle; the proportion of PRBs unavailable within a cycle; and the proportion of PRBs actually used within a preset time period. For example, if the length of a cycle is X1 symbols and the length of available time domain resources is Y1 symbols, the proportion of available time domain resources in a cycle is Y1/X1. For another example, a cycle includes a total of X2 PRBs, of which Y2 PRBs are available, then the proportion of PRBs available in a cycle is Y2/X2.
  • the energy saving degree information is used to indicate the energy saving degree of the first cell, and the energy saving degree may be the first energy saving degree or the second energy saving degree.
  • the first data transmission rate is less than the second data transmission rate
  • the first data transmission rate is the maximum data transmission rate that can be provided to the terminal device when the energy saving degree of the first cell in the energy saving direction is the first energy saving degree
  • the second data transmission rate is The transmission rate is the maximum data transmission rate that can be provided to the terminal device when the energy saving degree of the first cell in the energy saving direction is the second energy saving degree.
  • the first degree of energy saving may be called deep energy saving
  • the second degree of energy saving may be called light energy saving.
  • the energy saving mode of the first cell is the semi-static energy saving mode and the proportion of time domain resources available in a cycle is greater than or equal to the threshold 5 or the proportion of PRBs available in a cycle is greater than or equal to the threshold 6, the first cell
  • the degree of energy saving in the direction of energy saving is mild energy saving.
  • the degree of energy saving in the energy saving direction of the first community is deep energy saving.
  • threshold 5 and threshold 6 may be pre-stored in the network device.
  • the energy saving object information is used to indicate the energy saving object of the first cell.
  • the energy saving object may include at least one of the following: synchronization signal/physical broadcast channel block (SSB), random access signal, configuration authorization resource, System information, sounding reference signal (SRS), physical uplink control channel (PUCCH).
  • SSB synchronization signal/physical broadcast channel block
  • SRS sounding reference signal
  • PUCCH physical uplink control channel
  • the energy saving object when the energy saving object includes SSB, it means that the second network device saves energy for the SSB of the first cell. For example, the second network device increases the transmission period of the SSB of the first cell; when the energy saving object includes random access.
  • the second network device when receiving a signal, it means that the second network device saves energy for the random access signal of the first cell. For example, the second network device increases the period of random access resources used to carry the random access signal.
  • Other energy-saving objects can be processed with reference.
  • the energy-saving carrier information is used to indicate unavailable carriers in the first cell.
  • the energy-saving carrier information may include the identification of unavailable carriers in the first cell.
  • the first cell may include one downlink carrier and/or one or more uplink carriers.
  • the multiple uplink carriers may include a normal uplink (NUL) carrier and At least one supplementary uplink (SUL) carrier.
  • NUL normal uplink
  • SUL supplementary uplink
  • the unavailable carrier in the first cell may be uplink carrier 1, or it may also be uplink carrier 2, or it may It is uplink carrier 1 and uplink carrier 2, or it can also be uplink carrier 1, uplink carrier 2 and downlink carrier.
  • the energy-saving carrier information can directly indicate that the first cell is in the off state without including the first cell. Identification of the unavailable carrier.
  • the energy-saving resource information is used to indicate unavailable airspace resources of the first cell.
  • the unavailable airspace resources of the first cell may include at least one of the following: the number of unavailable antenna ports; the number of unavailable beams; the number of unavailable channels; the number of unavailable antennas; and the number of unavailable TRPs; The number of unavailable power amplifiers.
  • the unavailable beams may include transmitting beams and/or receiving beams
  • the unavailable channels may include transmitting channels and/or receiving channels
  • the unavailable antennas may include transmitting antennas and/or receiving antennas.
  • the second network device can send to the first network device the maximum data transmission rate that each of the M cells can provide for the terminal device (such as the uplink direction and/or or the maximum data transmission rate in the downlink direction), for example, M cells include cell 1, cell 2...cell m, cell 1 can provide the maximum data transmission rate V1 for terminal equipment, and cell 2 can provide terminal equipment with the maximum data transmission rate V1 The maximum data transmission rate V2 provided...The maximum data transmission rate Vm that cell m can provide for terminal equipment.
  • the first network device sends second request information to the second network device according to the energy saving information of the M cells.
  • the second request information is used to request to add N cells among the M cells to the secondary cell group of the terminal device. , or the second request information is used to request to add the second network device as a secondary network device of the terminal device.
  • N is a positive integer, and N is less than or equal to M.
  • the second request information may be, for example, a request message for the secondary base station to add.
  • the first network device can obtain information from the M cells based on the energy saving information of the M cells. Select N cells and send second request information to the second network device. Taking the first cell as an example, the first network device can determine whether to select the first cell based on the energy saving information of the first cell. For example, if the first cell is in a non-energy-saving state, the first cell may be selected; if the first cell is in an energy-saving state, the first cell may not be selected. For another example, if the energy saving degree of the first cell in the energy saving direction is light energy saving, the first cell may be selected; if the energy saving degree of the first cell in the energy saving direction is deep energy saving, the first cell may not be selected. For another example, if the energy saving object of the first cell includes at least one of SSB, random access signal, configuration authorization resource, system information, SRS, and PUCCH, the first cell may not be selected; otherwise, the first cell may be selected.
  • the energy saving object of the first cell includes at least one of SSB,
  • the first network device can determine that there are N cells among the M cells that can meet the data transmission requirements of the terminal device based on the energy saving information of the M cells and the data transmission requirements of the terminal device. It is decided to request to add the second network device as the secondary network device of the terminal device, and send the second request information to the second network device; otherwise, the second request information may not be sent to the second network device.
  • the data transmission requirements of the terminal device may include transmission reliability requirements, transmission rate requirements, transmission direction requirements (for example, the data to be transmitted is uplink data and/or downlink data), transmission delay requirements, etc., and are not specifically limited.
  • the first network device can determine whether there are N cells among the M cells based on the energy saving information of the M cells and the data transmission requirements of the terminal device.
  • the first network device selects N cells from the M cells based on the energy saving information of the M cells and the data transmission requirements of the terminal device, and sends the second request information to the second network device.
  • the first network device can determine whether to select the first cell based on the energy saving information of the first cell and the data transmission requirements of the terminal device. For example, if the terminal device has downlink data transmission requirements but no uplink data transmission requirements, if the energy-saving direction of the first cell is the uplink direction, the first cell can be selected; if the energy-saving direction of the first cell is the downlink direction, it does not need to be selected. Select the first cell.
  • the data of terminal equipment (such as ultra-reliable low latency communication (URLLC) data) has higher transmission delay requirements.
  • the energy-saving mode of the first cell in the energy-saving direction is dynamic energy-saving mode, the first cell may be selected; if the energy-saving mode of the first cell in the energy-saving direction is a semi-static energy-saving mode, the first cell may not be selected.
  • the specific way in which the first network device decides whether to request to add the second network device as a secondary network device based on the energy saving information of the M cells depends on the internal implementation of the first network device, and the above descriptions are only some possibilities. Example, the embodiments of this application do not limit this.
  • the first network device can decide whether to request to add the second network device as the auxiliary network device of the terminal device based on the energy saving information of the M cells of the second network device. For example, if the M cells are all deeply energy-saving, such In this case, it is very likely that the second network device will not be able to meet the data transmission requirements of the terminal device, and the first network device may not request to add the second network device as a secondary network device of the terminal device. In this way, since the first network device considers the energy saving information of the cells managed by the candidate secondary network device when adding the secondary network device to the terminal device, it is convenient to add the appropriate network device as the secondary network device of the terminal device.
  • the above-mentioned first network device and the second network device may both be base stations, or the first network device may be a CU and the second network device may be a DU. That is to say, DU can also send the energy saving information of at least one cell managed by DU to CU. Information, and then the CU can decide whether to add these cells to the secondary cell of the terminal device based on the energy saving information of at least one cell. For specific implementation, refer to the above.
  • the above method may also include:
  • S504 After receiving the second request information from the first network device, if the second network device determines that it can accommodate the terminal device, it may allocate wireless resources to the terminal device and send a confirmation message to the first network device.
  • the confirmation message may be, for example, Add a request confirmation message for the secondary base station.
  • the first network device After receiving the confirmation message from the second network device, the first network device can instruct the terminal device to add the second network device as the auxiliary network device of the terminal device, and then the first network device and the second network device can transmit the terminal device's data.
  • the first network device can also perform other possible operations based on the energy saving information of the N cells. For example, the first network device can also decide how much data to distribute to the second network device based on the energy saving information of N cells. For example, if the N cells are all in an energy saving state, less data can be distributed to the second network device. Otherwise, More data can be offloaded to the second network device. For another example, the first network device can also decide whether the cells in the main cell group of the terminal device should enter the energy-saving state based on the energy-saving information of N cells. For example, if the N cells are all in a non-energy-saving state, and the terminal device needs to transmit If the amount of data is not large, the first network device may decide to enter one or more cells in the primary cell group into an energy-saving state.
  • the above method may also include other possible steps.
  • the above method may also include other possible steps. Several possible implementations are described below in conjunction with Implementation Mode 1 to Implementation Mode 4.
  • the above method may also include:
  • the second network device After updating the energy saving information of at least one cell among the N cells, the second network device sends first indication information to the first network device.
  • the first indication information indicates that the second network device has updated the energy saving information of at least one cell.
  • the first indication information may include updated energy saving information of at least one cell.
  • the first indication information may be carried in a secondary base station release request message or other possible messages, and is not specifically limited.
  • At least one cell may include a primary and secondary cell and/or a secondary cell other than the primary and secondary cells managed by the second network device. That is to say, the second network device may send the first indication information to the first network device after updating the energy saving information of any cell among the N cells.
  • At least one cell includes a primary and secondary cell. That is to say, the second network device can send the first indication information to the first network device after updating the energy saving information of the primary and secondary cells; if the second network device updates the energy saving information of other secondary cells except the primary and secondary cells, If the energy saving information of the primary and secondary cells is not updated, the first indication information may not be sent to the first network device.
  • the second network device can selectively send the first indication information to the first network device after updating the energy saving information of the primary and secondary cells. For example, if the second network device updates the energy saving degree of the primary and auxiliary cells from light energy saving to deep energy saving, the updated energy saving information of the primary and auxiliary cells can be sent to the first network device; If the degree of energy saving is updated from deep energy saving to light energy saving, there is no need to send the first indication information to the first network device.
  • the first network device determines whether to release the second network device according to the first instruction information.
  • the first network device may Release the second network device and try to add other auxiliary network devices for the terminal device; if it is determined that the N cells can still meet the data transmission needs of the terminal device, you do not need to release the second network device and continue to distribute traffic through the second network device.
  • Terminal device data the first network device can also release the second network device after receiving the first indication information (for example, as mentioned above, taking the primary and secondary cells as an example, the second network device is at the energy saving level of the primary and secondary cells.
  • the first instruction information is sent to the first network device; since the primary and secondary cells are likely to be difficult to meet the data transmission needs of the terminal device in the deep energy saving state, the first network The device can directly release the second network device).
  • the second network device can notify the first network device after updating the energy saving information of at least one cell, so that when the cell managed by the second network device cannot meet the data transmission needs of the terminal device due to the energy saving information update, , the first network device can adjust the data transmission mode in time, such as releasing the second network device, and try to add other auxiliary network devices to avoid affecting the data transmission of the terminal device.
  • the above method may also include:
  • the second network device sends third request information to the first network device.
  • the third request information is used to request to update the energy saving information of at least one cell among the N cells.
  • the third request information may include target energy saving information of at least one cell to be updated by the second network device. That is to say, when the second network device wants to update the energy saving information of at least one cell, it may first send the third request information to the first network device.
  • the first network device After receiving the third request information, the first network device determines whether to allow the second network device to update the energy saving information of at least one cell according to the third request information.
  • the first network device may send second indication information to the second network device, and the second indication information indicates that the second network device is allowed to update the energy saving information of at least one cell.
  • energy-saving information if it is determined that the second network device is not allowed to update the energy-saving information of at least one cell, third indication information may be sent to the second network device, and the third indication information indicates that the second network device is not allowed to update the energy-saving information of at least one cell. information, or the second network device can be released.
  • the first network device may determine whether to allow the second network device to update the energy saving information of at least one cell based on the target energy saving information of at least one cell to be updated by the second network device and the data transmission requirements of the terminal device. For example, if the first network device determines that the second network device can still meet the data transmission needs of the terminal device after updating the energy saving information of at least one cell to the target energy saving information, it may allow the second network device to update the energy saving information of at least one cell. .
  • the second network device can first request from the first network device whether it is allowed to update the energy saving information of at least one cell. If the first network device allows it, the second network device can update the energy saving information of at least one cell. That is to say, the first network device can control the second network device to update the energy saving information of at least one cell, thereby effectively ensuring that the second network device can save energy without affecting the data transmission of the terminal device.
  • the above method may also include:
  • the first network device sends fourth request information to the second network device.
  • the fourth request information is used to request the second network device to update the energy saving information of at least one cell among the N cells.
  • the first network device sends the fourth request information to the second network device.
  • the first network device determines that new service data of the terminal device has arrived, and the transmission delay requirement of the new service data is relatively high (that is, the data transmission requirements of the terminal device change).
  • the fourth request information may be sent to the second network device. Further, the fourth request information may include a reason value, and the reason value is used to indicate the reason why the first network device requests the second network device to update the energy saving information of at least one cell among the N cells.
  • the reason may be the above (1) (2) )(3) at least one.
  • the latest energy saving information of the N cells may be sent by the second network device to the first network device on its own initiative, or may be sent by the second network device to the first network device based on a request from the first network device.
  • the second network device after receiving the fourth request information, can update the energy saving information of at least one cell among the N cells according to the fourth request information, and send the fourth instruction information to the first network device.
  • the fourth instruction The information indicates that the second network device has updated the energy saving information of at least one cell.
  • the second network device may not update the energy saving information of at least one cell among the N cells according to the fourth request information, and send the fifth instruction information to the first network device, and the fifth instruction information instructs the second network device not to update the energy saving information of at least one cell among the N cells. Update the energy saving information of at least one community.
  • the fifth indication information may be carried in the SeNB release request message. Accordingly, after receiving the SeNB release request message, the first network device may release the second network device.
  • the first network device can request the second network device to update the energy saving information of at least one cell, so that the second network device can update the energy saving information of at least one cell based on the request of the first network device, so as to satisfy the requirements of the terminal device. data transmission requirements.
  • the above method may also include:
  • S506-d After determining that the second network device does not need to offload the data of the terminal device, the first network device sends sixth instruction information to the second network device, and the sixth instruction information indicates that the second network device does not need to offload the data of the terminal device.
  • the first network device determines that there is no need for the second network device to offload the data of the terminal device. For example, the critical data transmission of the terminal device is completed and/or the amount of data of the terminal device cached in the first network device is less than Threshold 4.
  • the first network device determines that it does not need the second network device to offload the data of the terminal device, which may mean that the first network device determines that it does not need the second network device to offload the data of the terminal device temporarily, and may need it again in the future.
  • the second network device offloads the data of the terminal device.
  • the second network device receives the sixth indication information and can flexibly decide whether to update the energy saving information of at least one cell among the N cells according to the sixth indication information.
  • the second network device may send first indication information to the first network device, and the first indication information indicates that the second network device has updated the energy saving information of at least one cell. Can information.
  • the first network device determines that it needs the second network device to offload the data of the terminal device, it can determine whether the N cells can meet the data transmission needs of the terminal device based on the latest energy saving information of the N cells. If so, the first network device The device can offload the data of the terminal device through the second network device. Otherwise, the first network device may release the second network device, or perform S506-c.
  • the second network device can flexibly decide whether to update the energy saving information of at least one of the N cells. For example, the second network device A more energy-saving operation can be performed on at least one cell among the N cells, thereby saving energy without affecting data transmission of the terminal device.
  • Figure 7 is a schematic flowchart corresponding to the communication method provided in Embodiment 2 of the present application. As shown in Figure 7, the method includes:
  • the first network device sends fifth request information to the second network device.
  • the fifth request information includes the identifiers of M cells.
  • the fifth request information is used to request the second network device to determine M cells based on the energy saving information of the M cells. Whether the cell can be added to the secondary cell group of the terminal device.
  • the fifth request information may also include data transmission requirement information of the terminal device.
  • the second network device may send seventh indication information to the first network device.
  • the seventh indication information indicates that N cells among the M cells can be added to the secondary cell group of the terminal device.
  • the second network device may select N cells from the M cells and send the seventh indication information to the second network device.
  • the second network device may select N cells from the M cells based on the energy saving information of the M cells. For example, if N cells among the M cells are all in a non-energy-saving state, seventh indication information may be sent to the first network device, and the seventh indication information indicates that N cells among the M cells can be added to the secondary cells of the terminal device. group.
  • the second network device can use the energy saving information of M cells and the data transmission demand of the terminal device. If it is determined that there are The N cells that can meet the data transmission requirements of the terminal device can send the seventh indication information to the first network device.
  • the first network device After receiving the seventh instruction information, the first network device sends the second request information to the second network device.
  • the second request information is used to request to add N cells to the secondary cell group of the terminal device, or the second The request information is used to request to add the second network device as a secondary network device of the terminal device.
  • S704 After receiving the second request information from the first network device, if the second network device determines that it can accommodate the terminal device, it may allocate wireless resources to the terminal device and send a confirmation message to the first network device.
  • the first network device after receiving the confirmation message from the second network device, can instruct the terminal device to add the second network device as the auxiliary network device of the terminal device, and then the first network device and the second network device can transmit the terminal device's data.
  • S706 After updating the energy saving information of at least one cell among the N cells, the second network device sends sixth request information to the first network device.
  • the sixth request information is used to request the release of the second network device.
  • the sixth request information may carry a reason value, and the reason value is used to indicate the reason for requesting to release the second network device.
  • the reason may be: after updating the energy saving information of N cells, the N cells cannot meet the requirements of the terminal device. number according to transmission requirements. That is to say, after the second network device updates the energy saving information of at least one cell among the N cells, if the N cells still meet the data transmission requirements of the terminal device, it may not send the sixth request information to the first network device; if N If a cell cannot meet the data transmission requirements of the terminal device, the sixth request information may be sent to the first network device.
  • the first network device After receiving the sixth request information, the first network device can release the second network device according to the sixth request information.
  • the first network device can first send request information to the second network device, and the second network device determines that N cells among the M cells can be added to the secondary cell group of the terminal device based on the energy saving information of the M cells. Finally, the first network device then requests the second network device to add N cells to the secondary cell group of the terminal device. In this way, when adding a secondary network device to the terminal device, the energy saving information of the cell managed by the candidate secondary network device is taken into consideration, thereby making it easy to add a suitable network device as the secondary network device of the terminal device.
  • step numbers in each flow chart described in Embodiment 1 and Embodiment 2 are only an example of the execution process and do not constitute a restriction on the order of execution of the steps. There is no timing between them in the embodiments of the present application. There is no strict order of execution between the steps of a dependency. Not all steps shown in each flowchart are necessary steps. Some steps can be deleted based on actual needs, or other possible steps can be added based on actual needs.
  • Embodiment 1 and Embodiment 2 can refer to each other; in addition, in the same embodiment, different implementation methods or different Examples can also be cross-referenced.
  • the network device may include corresponding hardware structures and/or software modules that perform each function.
  • the embodiments of the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is performed by hardware or computer software driving the hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each specific application, but such implementations should not be considered beyond the scope of this application.
  • Embodiments of the present application can divide the network device into functional units according to the above method examples.
  • each functional unit can be divided corresponding to each function, or two or more functions can be integrated into one unit.
  • the above integrated units can be implemented in the form of hardware or software functional units.
  • Figure 8 shows a possible exemplary block diagram of the device involved in the embodiment of the present application.
  • the device 800 may include: a processing unit 802 and a communication unit 803.
  • the processing unit 802 is used to control and manage the actions of the device 800 .
  • the communication unit 803 is used to support communication between the device 800 and other devices.
  • the communication unit 803, also called a transceiver unit may include a receiving unit and/or a sending unit, respectively configured to perform receiving and sending operations.
  • the device 800 may also include a storage unit 801 for storing program codes and/or data of the device 800 .
  • the device 800 may be the first network device in the above embodiment.
  • the processing unit 802 can support the apparatus 800 to perform the actions of the first network device in each of the above method examples.
  • the processing unit 802 mainly performs internal actions of the second network device in the method example, and the communication unit 803 may support communication between the apparatus 800 and other devices.
  • the communication unit 803 is configured to: receive energy saving information from M cells of the second network device, where the M cells are cells managed by the second network device; and, according to the M Energy saving information of the cells, and sending second request information to the second network device, where the second request information is used to request to add N cells among the M cells to the secondary cell group of the terminal device. .
  • the device 800 may be the second network device in the above embodiment.
  • the processing unit 802 can support the apparatus 800 to perform the actions of the second network device in the above method examples.
  • the processing unit 802 mainly performs internal actions of the second network device in the method example, and the communication unit 803 may support communication between the apparatus 800 and other devices.
  • the communication unit 803 is configured to: send energy saving information of M cells to the first network device, where the M cells are cells managed by the second network device; receive the energy saving information of the first network device.
  • the second request information is sent according to the energy saving information of the M cells, and the second request information is used to request to add N cells among the M cells to the secondary cell group of the terminal device.
  • each unit in the device can be a separate processing element, or it can be integrated and implemented in a certain chip of the device.
  • it can also be stored in the memory in the form of a program, and a certain processing element of the device can call and execute the unit. Function.
  • all or part of these units can be integrated together or implemented independently.
  • the processing element described here can also be a processor, which can be an integrated circuit with signal processing capabilities.
  • each operation of the above method or each unit above can be implemented by an integrated logic circuit of hardware in the processor element or implemented in the form of software calling through the processing element.
  • the unit in any of the above devices may be one or more integrated circuits configured to implement the above method, such as: one or more application specific integrated circuits (ASIC), or one or Multiple microprocessors (digital signal processors, DSPs), or one or more field programmable gate arrays (FPGAs), or a combination of at least two of these integrated circuit forms.
  • ASIC application specific integrated circuits
  • DSPs digital signal processors
  • FPGAs field programmable gate arrays
  • the unit in the device can be implemented in the form of a processing element scheduler
  • the processing element can be a processor, such as a general central processing unit (CPU), or other processors that can call programs.
  • these units can be integrated together and implemented in the form of a system-on-a-chip (SOC).
  • SOC system-on-a-chip
  • the above receiving unit is an interface circuit of the device and is used to receive signals from other devices.
  • the receiving unit is an interface circuit used by the chip to receive signals from other chips or devices.
  • the above unit used for sending is an interface circuit of the device and is used to send signals to other devices.
  • the sending unit is an interface circuit used by the chip to send signals to other chips or devices.
  • network device 90 may include one or more DUs 901 and one or more CUs 902.
  • the DU 901 may include at least one antenna 9011, at least one radio frequency unit 9012, at least one processor 9013 and at least one memory 9014.
  • the DU 901 part is mainly used for transmitting and receiving radio frequency signals, converting radio frequency signals and baseband signals, and performing partial baseband processing.
  • CU 902 may include at least one processor 9022 and at least one memory 9021.
  • the CU 902 part is mainly used for baseband processing, control of network equipment, etc.
  • the DU 901 and the CU 902 can be physically set together or physically separated, that is, a distributed base station.
  • the CU 902 is the control center of the network equipment, which can also be called a processing unit, and is mainly used to complete the baseband processing function.
  • the CU 902 can be used to control the network device to perform the operation process of the network device in the above method embodiment.
  • the network device 90 may include one or more radio frequency units, one or more DUs, and one or more CUs.
  • the DU may include at least one processor 9013 and at least one memory 9014
  • the radio frequency unit may include at least one antenna 9011 and at least one radio frequency unit 9012
  • the CU may include at least one processor 9022 and at least one memory 9021.
  • the CU902 may be composed of one or more single boards. Multiple single boards may jointly support a wireless access network (such as a 5G network) with a single access indication, or may support wireless access networks of different access standards respectively. Access network (such as LTE network, 5G network or other networks).
  • the memory 9021 and processor 9022 can serve one or more single boards. In other words, the memory and processor can be set independently on each board. It is also possible for multiple boards to share the same memory and processor. In addition, necessary circuits can also be installed on each board.
  • the DU901 can be composed of one or more single boards.
  • Multiple single boards can jointly support a wireless access network with a single access indication (such as a 5G network), or can respectively support wireless access networks of different access standards (such as a 5G network).
  • a single access indication such as a 5G network
  • the memory 9014 and processor 9013 may serve one or more single boards. In other words, the memory and processor can be set independently on each board. It is also possible for multiple boards to share the same memory and processor. In addition, necessary circuits can also be installed on each board.
  • the network device shown in Figure 9 can implement each process involving the first network device or the second network device in the above method embodiment.
  • the operations and/or functions of each module in the network device shown in Figure 9 are respectively intended to implement the corresponding processes in the above method embodiment.
  • system and “network” in the embodiments of this application may be used interchangeably.
  • “At least one” means one or more, and “plurality” means two or more.
  • “And/or” describes the relationship between associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A alone exists, A and B exist simultaneously, and B alone exists, where A, B can be singular or plural.
  • the character “/” generally indicates that the related objects are in an “or” relationship.
  • “At least one of the following” or similar expressions thereof refers to any combination of these items, including any combination of a single item (items) or a plurality of items (items).
  • At least one of A, B, and C includes A, B, C, AB, AC, BC, or ABC.
  • the ordinal numbers such as “first” and “second” mentioned in the embodiments of this application are used to distinguish multiple objects and are not used to limit the order, timing, priority or importance of multiple objects. degree.
  • embodiments of the present application may be provided as methods, systems, or computer program products. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment that combines software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.
  • computer-usable storage media including, but not limited to, disk storage, CD-ROM, optical storage, etc.
  • These computer program instructions may also be stored in a computer-readable memory that causes a computer or other programmable data processing apparatus to operate in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction means, the instructions
  • the device implements the functions specified in a process or processes of the flowchart and/or a block or blocks of the block diagram.
  • These computer program instructions may also be loaded onto a computer or other programmable data processing device, causing a series of operating steps to be performed on the computer or other programmable device to produce computer-implemented processing, thereby executing on the computer or other programmable device.
  • Instructions provide steps for implementing the functions specified in a process or processes of a flowchart diagram and/or a block or blocks of a block diagram.

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Abstract

本申请涉及通信技术领域，公开了一种通信方法及装置。其中方法包括：第一网络设备接收来自第二网络设备的M个小区的节能信息，并根据M个小区的节能信息，向第二网络设备发送第二请求信息，第二请求信息用于请求将M个小区中的N个小区添加到终端设备的辅小区组中。采用该种方法，第一网络设备可以根据第二网络设备的M个小区的节能信息，决定是否请求添加第二网络设备为终端设备的辅网络设备；如此，由于第一网络设备在为终端设备添加辅网络设备时，考虑了候选辅网络设备管理的小区的节能信息，从而便于添加合适的网络设备为终端设备的辅网络设备。

Description

一种通信方法及装置
相关申请的交叉引用
本申请要求在2022年03月30日提交中国专利局、申请号为202210334251.8、申请名称为“一种通信方法及装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域，尤其涉及一种通信方法及装置。
背景技术
为了实现更高的传输速率与更低的传输时延，第三代合作伙伴计划(the 3rd generation partnership project，3GPP)引入了双连接(dual connectivity，DC)技术。DC技术是指单个终端设备可以同时与两个网络设备分别建立连接，这两个网络设备中的一个网络设备作为终端设备的主网络设备，另一个网络设备作为终端设备的辅网络设备。
由于网络规模越建越大，设备能耗不断上升，网络设备的高能耗逐渐成为运营商运营成本居高不下的主要原因之一。为了降低网络设备的能耗，目前引入了网络设备的节能技术，比如网络设备可以通过关断小区等操作来实现节能。
然而，当引入网络设备的节能技术后，如何实现双连接，仍需进一步的研究。
发明内容
本申请提供了一种通信方法及装置，用于实现在为终端设备添加辅网络设备时考虑候选辅网络设备的节能信息，从而便于添加合适的网络设备为终端设备的辅网络设备。
第一方面，本申请实施例提供一种通信方法，该方法可以应用于第一网络设备或者第一网络设备中的模块，以该方法应用于第一网络设备为例，在该方法中，第一网络设备接收来自第二网络设备的M个小区的节能信息，所述M个小区为所述第二网络设备管理的小区；以及，根据所述M个小区的节能信息，向所述第二网络设备发送第二请求信息，所述第二请求信息用于请求将所述M个小区中的N个小区添加到终端设备的辅小区组中；其中，M、N为正整数，且N小于或等于M。
采用上述方法，第一网络设备可以根据第二网络设备的M个小区的节能信息，决定是否请求添加第二网络设备为终端设备的辅网络设备，比如若M个小区均为深度节能，此种情形下，很大可能会导致第二网络设备无法满足终端设备的数据传输需求，进而第一网络设备可以不请求添加第二网络设备为终端设备的辅网络设备。如此，由于第一网络设备在为终端设备添加辅网络设备时，考虑了候选辅网络设备管理的小区的节能信息，从而便于添加合适的网络设备为终端设备的辅网络设备。
在一种可能的设计中，所述方法还包括：向所述第二网络设备发送第一请求信息，所述第一请求信息包括所述M个小区的标识，所述第一请求信息用于请求所述M个小区的节能信息；其中，所述M个小区是所述第一网络设备根据所述终端设备上报的W个小区 的测量结果从所述W个小区中选择的；W为正整数，且W大于或等于M。
在一种可能的设计中，所述M个小区包括第一小区，所述第一小区的节能信息包括以下至少一项：
节能状态信息，所述节能状态信息用于指示所述第一小区是否处于节能状态；
节能方向信息，所述节能方向信息用于指示所述第一小区的节能方向，所述节能方向包括上行方向和/或下行方向；
节能模式信息，所述节能模式信息用于指示所述第一小区所使用的节能模式，所述节能模式为半静态节能模式、动态节能模式或混合节能模式；
节能程度信息，所述节能程度信息用于指示所述第一小区的节能程度；
节能对象信息，所述节能对象信息用于指示所述第一小区的节能对象，所述节能对象包括以下至少一项：同步信号/物理广播信道块SSB、随机接入信号、配置授权、系统信息、探测参考信号SRS、物理上行控制信道PUCCH；
节能载波信息，所述节能载波信息用于指示所述第一小区不可用的载波；
节能资源信息，所述节能资源信息用于指示所述第一小区不可用的空域资源；
所述第一小区能够为所述终端设备提供的最大数据传输速率。
在一种可能的设计中，当所述节能模式为半静态节能模式时，所述节能模式信息包括以下至少一项：
所述半静态节能模式的周期；
所述周期内可用的时域资源占比；
所述周期内不可用的时域资源占比；
所述周期内可用的物理资源块PRB占比；
所述周期内不可用的PRB占比；
预设时间段内实际使用的PRB占比。
在一种可能的设计中，所述第一小区不可用的空域资源包括以下至少一项：
不可用的端口数量；
不可用的波束数量；
不可用的通道数量；
不可用的天线数量；
不可用的传输接收点TRP数量；
不可用的功率放大器的数量。
在一种可能的设计中，所述方法还包括：接收来自所述第二网络设备的第一指示信息，所述第一指示信息指示所述第二网络设备更新了所述N个小区中至少一个小区的节能信息。
在一种可能的设计中，第一指示信息承载于辅基站释放请求消息。
在一种可能的设计中，所述第一指示信息包括更新后的所述至少一个小区的节能信息；所述方法还包括：根据更新后的所述至少一个小区的节能信息，释放所述第二网络设备。
采用上述方法，第二网络设备在更新至少一个小区的节能信息后，可以通知给第一网络设备，从而在第二网络设备所管理的小区由于节能信息更新而无法满足终端设备的数据传输需求时，第一网络设备可以及时调整数据传输方式，例如释放第二网络设备，并尝试添加其它的辅网络设备，避免影响终端设备的数据传输。
在一种可能的设计中，所述方法还包括：接收来自所述第二网络设备的第三请求信息， 所述第三请求信息用于请求更新所述N个小区中至少一个小区的节能信息；根据所述第三请求信息，向所述第二网络设备发送第二指示信息，所述第二指示信息指示允许所述第二网络设备更新所述至少一个小区的节能信息。
采用上述方法，第二网络设备可以先向第一网络设备请求是否允许更新至少一个小区的节能信息，若第一网络设备允许，则第二网络设备才可以更新至少一个小区的节能信息，从而能够有效避免第二网络设备私自更新至少一个小区的节能信息而影响终端设备的数据传输。
在一种可能的设计中，所述方法还包括：向所述第二网络设备发送第四请求信息，所述第四请求信息用于请求所述第二网络设备更新所述N个小区中至少一个小区的节能信息。
在一种可能的设计中，向所述第二网络设备发送第四请求信息之前，还包括以下至少一项：确定终端设备的数据传输需求发生变化；确定终端设备的关键数据即将到达或已经到达；确定缓存在第一网络设备的终端设备的数据量大于或等于阈值。
采用上述方法，第二网络设备可以先向第一网络设备请求是否允许更新至少一个小区的节能信息，若第一网络设备允许，则第二网络设备才可以更新至少一个小区的节能信息。也就是说，第一网络设备可以控制第二网络设备更新至少一个小区的节能信息，从而能够有效保证在不影响终端设备的数据传输的同时，实现第二网络设备的节能。
第二方面，本申请实施例提供一种通信方法，该方法可以应用于第二网络设备或者第二网络设备中的模块，以该方法应用于第二网络设备为例，在该方法中，第二网络设备向第一网络设备发送M个小区的节能信息，所述M个小区为所述第二网络设备管理的小区；接收所述第一网络设备根据所述M个小区的节能信息发送的第二请求信息，所述第二请求信息用于请求将所述M个小区中的N个小区添加到终端设备的辅小区组中；其中，M、N为正整数，且N小于或等于M。
在一种可能的设计中，所述方法还包括：接收来自所述第一网络设备的第一请求信息，所述第一请求信息包括所述M个小区的标识，所述第一请求信息用于请求所述M个小区的节能信息；其中，所述M个小区是所述第一网络设备根据所述终端设备上报的W个小区的测量结果从所述W个小区中选择的；W为正整数，且W大于或等于M。
在一种可能的设计中，所述M个小区包括第一小区，所述第一小区的节能信息包括以下至少一项：
节能状态信息，所述节能状态信息用于指示所述第一小区是否处于节能状态；
节能方向信息，所述节能方向信息用于指示所述第一小区的节能方向，所述节能方向包括上行方向和/或下行方向；
节能模式信息，所述节能模式信息用于指示所述第一小区所使用的节能模式，所述节能模式为半静态节能模式、动态节能模式或混合节能模式；
节能程度信息，所述节能程度信息用于指示所述第一小区的节能程度；
节能对象信息，所述节能对象信息用于指示所述第一小区的节能对象，所述节能对象包括以下至少一项：SSB、随机接入信号、配置授权、系统信息、SRS、PUCCH；
节能载波信息，所述节能载波信息用于指示所述第一小区不可用的载波；
节能资源信息，所述节能资源信息用于指示所述第一小区不可用的空域资源；
所述第一小区能够为所述终端设备提供的最大数据传输速率。
在一种可能的设计中，当所述节能模式为半静态节能模式时，所述节能模式信息包括 以下至少一项：
所述半静态节能模式的周期；
所述周期内可用的时域资源占比；
所述周期内不可用的时域资源占比；
所述周期内可用的PRB占比；
所述周期内不可用的PRB占比；
预设时间段内实际使用的PRB占比。
在一种可能的设计中，所述第一小区不可用的空域资源包括以下至少一项：
不可用的端口数量；
不可用的波束数量；
不可用的通道数量；
不可用的天线数量；
不可用的传输接收点TRP数量；
不可用的功率放大器的数量。
在一种可能的设计中，所述方法还包括：向所述第一网络设备发送第一指示信息，所述第一指示信息指示所述第二网络设备更新了所述N个小区中至少一个小区的节能信息。
在一种可能的设计中，所述第一指示信息包括更新后的所述至少一个小区的节能信息。
在一种可能的设计中，所述方法还包括：向所述第一网络设备发送第三请求信息，所述第三请求信息用于请求更新所述N个小区中至少一个小区的节能信息；接收来自所述第一网络设备的第二指示信息，所述第二指示信息指示允许所述第二网络设备更新所述至少一个小区的节能信息。
在一种可能的设计中，所述方法还包括：接收来自所述第一网络设备的第四请求信息，所述第四请求信息用于请求所述第二网络设备更新所述N个小区中至少一个小区的节能信息。
在一种可能的设计中，所述第四请求信息包括原因值，所述原因值用于指示以下至少一项：终端设备的数据传输需求发生变化；终端设备的关键数据即将到达或已经到达；缓存在第一网络设备的终端设备的数据量大于或等于阈值。
上述第二方面请求保护的方法与第一方面相对应，相关技术特征的有益效果可以参照第一方面中的描述，不再赘述。
第三方面，本申请提供一种通信装置，所述通信装置比如为第一网络设备或第二网络设备。所述通信装置具备实现上述第一方面或第二方面涉及的功能，比如，所述通信装置包括执行上述第一方面或第二方面涉及操作所对应的模块或单元或手段，所述功能或单元或手段可以通过软件实现，或者通过硬件实现，也可以通过硬件执行相应的软件实现。
在一种可能的设计中，所述通信装置包括处理单元、通信单元，其中，通信单元可以用于收发信号，以实现该通信装置和其它装置之间的通信，比如，通信单元用于向终端设备发送系统信息；处理单元可以用于执行该通信装置的一些内部操作。处理单元、通信单元执行的功能可以和上述第一方面或第二方面涉及的操作相对应。
在一种可能的设计中，所述通信装置包括处理器，处理器可以用于与存储器耦合。所述存储器可以保存实现上述第一方面或第二方面涉及的功能的必要计算机程序或指令。所述处理器可执行所述存储器存储的计算机程序或指令，当所述计算机程序或指令被执行时， 使得所述通信装置实现上述第一方面或第二方面任意可能的设计或实现方式中的方法。
在一种可能的设计中，所述通信装置包括处理器和存储器，存储器可以保存实现上述第一方面或第二方面涉及的功能的必要计算机程序或指令。所述处理器可执行所述存储器存储的计算机程序或指令，当所述计算机程序或指令被执行时，使得所述通信装置实现上述第一方面或第二方面任意可能的设计或实现方式中的方法。
在一种可能的设计中，所述通信装置包括处理器和接口电路，其中，处理器用于通过所述接口电路与其它装置通信，并执行上述第一方面或第二方面任意可能的设计或实现方式中的方法。
可以理解地，上述第三方面中，处理器可以通过硬件来实现也可以通过软件来实现，当通过硬件实现时，该处理器可以是逻辑电路、集成电路等；当通过软件来实现时，该处理器可以是一个通用处理器，通过读取存储器中存储的软件代码来实现。此外，以上处理器可以为一个或多个，存储器可以为一个或多个。存储器可以与处理器集成在一起，或者存储器与处理器分离设置。在具体实现过程中，存储器可以与处理器集成在同一块芯片上，也可以分别设置在不同的芯片上，本申请实施例对存储器的类型以及存储器与处理器的设置方式不做限定。
第四方面，本申请提供一种通信系统，该通信系统可以包括第一网络设备和第二网络设备。其中，第一网络设备用于执行上述第一方面任一种可能的设计中的方法，第二网络设备用于执行上述第二方面任一种可能的设计中的方法。
第五方面，本申请提供一种计算机可读存储介质，所述计算机存储介质中存储有计算机可读指令，当计算机读取并执行所述计算机可读指令时，使得计算机执行上述第一方面或第二方面任一种可能的设计中的方法。
第六方面，本申请提供一种计算机程序产品，当计算机读取并执行所述计算机程序产品时，使得计算机执行上述第一方面或第二方面的任一种可能的设计中的方法。
第七方面，本申请提供一种芯片，所述芯片包括处理器，所述处理器与存储器耦合，用于读取并执行所述存储器中存储的软件程序，以实现上述第一方面或第二方面的任一种可能的设计中的方法。
本申请的这些方面或其它方面在以下实施例的描述中会更加简明易懂。
附图说明
图1为本申请实施例适用的一种网络架构示意图；
图2A为本申请实施例提供的一种CU-DU分离架构的示意图；
图2B为本申请实施例提供的又一种CU-DU分离架构的示意图；
图3为本申请实施例提供的双连接对应的数据无线承载示意图；
图4为本申请实施例提供的添加辅网络设备的流程示意图；
图5为本申请实施例提供的通信方法所对应的流程示意图；
图6为本申请实施例提供的半静态节能模式示意图；
图7本申请实施例提供的通信方法所对应的流程示意图；
图8为本申请实施例中所涉及的装置的可能的示例性框图；
图9为本申请实施例提供的一种网络设备的结构示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行描述。
图1为本申请实施例适用的一种通信系统示意图。如图1所示，通信系统10包括一个或多个网络设备20，以及一个或多个终端设备30。其中，网络设备与终端设备之间的接口可以为Uu接口(或称为空口)，网络设备20与终端设备30之间可以通过空口资源进行数据传输。
(1)终端设备
终端设备又称之为用户设备(user equipment，UE)、移动台(mobile station，MS)、移动终端(mobile terminal，MT)等，是指向用户提供语音和/或数据连通性的设备。例如，具有无线连接功能的手持式设备、车载设备等。目前，一些终端设备的举例为：手机(mobile phone)、平板电脑、笔记本电脑、掌上电脑、移动互联网设备(mobile internet device，MID)、可穿戴设备，虚拟现实(virtual reality，VR)设备、增强现实(augmented reality，AR)设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程手术(remote medical surgery)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等。
(2)网络设备
网络设备是指将终端接入到无线网络的无线接入网(radio access network，RAN)节点(或设备)，又可以称为基站。目前，一些RAN节点的举例为：节点B(Node B，NB)、继续演进的节点B(gNB)、传输接收点(transmission reception point，TRP)、演进型节点B(evolved Node B，eNB)、无线网络控制器(radio network controller，RNC)、基站控制器(base station controller，BSC)、基站收发台(base transceiver station，BTS)、家庭基站(例如，home evolved NodeB，或home Node B，HNB)、基带单元(base band unit，BBU)，或无线保真(wireless fidelity，Wifi)接入点(access point，AP)等。
(3)终端设备与网络设备之间的通信
终端设备与网络设备之间的通信遵循一定的协议层结构，例如控制面协议层结构可以包括无线资源控制(radio resource control，RRC)层、分组数据汇聚层协议(packet data convergence protocol，PDCP)层、无线链路控制(radio link control，RLC)层、媒体接入控制(media access control，MAC)层和物理层(physicallayer，PHY)；用户面协议层结构可以包括PDCP层、RLC层、MAC层和物理层，在一种可能的实现中，PDCP层之上还可以包括业务数据适配(service data adaptation protocol，SDAP)层。其中，SDAP层、PDCP层、RLC层、MAC层、物理层也可以统称为接入层。有关上述各个协议层的具体描述，可以参考3GPP的相关技术规范。
(4)CU-DU分离架构
示例性地，在一些可能的网络结构中，网络设备可以包括一个或多个集中式单元(centralized unit，CU)和一个或多个分布式单元(distributed unit，DU)，多个DU可以由一个CU集中控制，该种架构可以称为CU-DU分离架构。作为示例，CU和DU之间的接口可以称为F1接口，其中，控制面(control panel，CP)接口可以为F1-C接口，用户面(user panel，UP)接口可以为F1-U接口。
CU和DU的处理功能可以根据无线网络的协议层划分：比如图2A所示，PDCP层及 以上协议层的功能设置在CU，PDCP层以下协议层(例如RLC层和MAC层等)的功能设置在DU。可以理解的，上述对CU和DU的处理功能按照协议层的划分仅仅是一种举例，也可以按照其他的方式进行划分，比如RLC层以上协议层的功能设置在CU，RLC层及以下协议层的功能设置在DU，又比如可以将CU或者DU划分为具有更多协议层的功能，又比如CU或DU还可以划分为具有协议层的部分处理功能。本申请实施例对此并不进行限定。
进一步地，CU的功能可以由一个实体来实现，或者也可以由不同的实体来实现。例如，可以对CU的功能进行进一步切分，即将控制面和用户面分离并通过不同实体来实现，分别为控制面CU实体(即CU-CP实体)和用户面CU实体(即CU-UP实体)，CU-CP实体和CU-UP实体可以与DU相耦合，共同完成RAN设备的功能。CU-CP实体与CU-UP实体之间的接口可以为E1接口，CU-CP实体与DU之间的接口可以为F1-C接口，CU-UP实体与DU之间的接口可以为F1-U接口。其中，一个DU和一个CU-UP可以连接到一个CU-CP。在同一个CU-CP控制下，一个DU可以连接到多个CU-UP，一个CU-UP可以连接到多个DU，在多个CU-CP协作下，一个CU-UP也可以连接到协作的多个CU-CP，从而提升CU-CP的弹性。图2B为一种空口协议栈分布示意图。如图2B所示，针对用户面和控制面来说，空口协议栈都可以是RLC、MAC、PHY在DU，PDCP及以上协议层在CU。
需要说明的是：在上述图2A和图2B所示意的架构中，CU产生的信令可以通过DU发送给终端设备，或者终端设备产生的信令可以通过DU发送给CU。DU可以不对该信令进行解析而直接通过协议层封装后透传给终端设备或CU。以下实施例中如果涉及这种信令在DU和终端设备之间的传输，此时，DU对信令的发送或接收包括这种场景。例如，RRC或PDCP层的信令最终会处理为物理层的数据发送给终端设备，或者，由接收到的物理层的数据转变而来。在这种架构下，该RRC层或PDCP层的信令，即也可以认为是由DU发送的，或者，由DU和射频装置发送的。
可以理解的是，本申请实施例对通信系统中所包括的网络设备的数量、终端设备的数量不作限定，而且上述通信系统中除了包括网络设备和终端设备以外，还可以包括其它设备或网元，如核心网设备、中继设备等，对此本申请实施例也不作限定。
上述图l所示意的通信系统可以支持各种无线接入技术(radio access technology，RAT)，例如图1所示意的通信系统可以为第四代(4th generation，4G)通信系统(也可以称为长期演进(long term evolution，LTE)通信系统)，5G通信系统(也可以称为新无线(new radio，NR)通信系统)，无线保真(wireless fidelity，Wi-Fi)系统，或者是面向未来的演进系统。本申请实施例描述的通信系统以及业务场景是为了更加清楚的说明本申请实施例的技术方案，并不构成对于本申请实施例提供的技术方案的限定，本领域普通技术人员可知，随着通信系统的演变和新业务场景的出现，本申请实施例提供的技术方案对于类似的技术问题，同样适用。
下面先对本申请实施例所涉及的相关技术特征进行解释说明。需要说明的是，这些解释是为了让本申请实施例更容易被理解，而不应该视为对本申请所要求的保护范围的限定。
一、双连接
在图l所示意的网络架构中，终端设备可以和两个网络设备建立连接(即建立双连接)，这两个网络设备中的一个网络设备作为终端设备的主网络设备，另一个网络设备作为终端设备的辅网络设备。
由于终端设备在一个网络设备下可以同时接受多个小区的服务，因此主网络设备为终端设备提供的服务小区组可以称为主小区组(master cell group，MCG)，类似的，辅网络设备为终端设备提供的服务小区组称为辅小区组(secondary cell group，SCG)。
其中，MCG可以包括至少一个小区，当MCG仅包括一个小区时，该小区为终端设备的主小区(primary cell，PCell)；终端设备可以在PCell进行初始连接建立过程或开始连接重建立过程。SCG可以包括至少一个小区，当SCG仅包括一个小区时，该小区为终端设备的主辅小区(primary secondary cell，PSCell)；终端设备可以在PSCell上进行随机接入，或者当不需要在PSCell上进行随机接入时，终端设备可以直接在PSCell上传输物理上行共享信道(physical uplink shared channel，PUSCH)。
在5G通信系统中，PCell和PSCell可以统称为特殊小区(special sell，SpCell)。当MCG或SCG包含多个小区时，其中各有一个小区为SpCell，除SpCell以外的小区均称为辅小区(secondary cell，SCell)，各个小区组中的SCell与SpCell进行载波聚合，共同为终端设备提供服务。
二、双连接对应的数据传输
如图3所示，双连接对应的数据无线承载(data radio bearer，DRB)可以包括MCG承载(MCG bearer)、SCG承载(SCG bearer)、分裂承载(split bearer)。其中，MCG bearer是指该DRB的RLC/MAC实体只在主网络设备上；SCG bearer是指该DRB的RLC/MAC实体只在辅网络设备上；split bearer是指该DRB的RLC/MAC实体在主网络设备和辅网络设备上都有。
在终端设备建立双连接后，以下行数据传输为例，终端设备的部分PDU会话和/或PDU会话中的部分服务质量(quality ofservice，QoS)流可以从主网络设备分流到辅网络设备，比如分流到辅网络设备的QoS流可以映射到SCG bearer或splitbearer；未分流的部分QoS流可以映射到MCG bearer或splitbearer。其中，映射到SCG bearer上的QoS流中的数据可以全部由辅网络设备在辅小区组中的小区上发送给终端设备，映射到split bearer上的QoS流中的数据可以部分由辅网络设备在辅小区组中的小区上发送给终端设备，另一部分可以由主网络设备在主小区组中的小区上发送给终端设备，映射到MCG bearer上的QoS流中的数据可以由主网络设备在主小区组中的小区上发送给终端设备。
三、网络没备的节能技术
为了降低网络设备的能耗，目前引入了网络设备的节能技术，比如网络设备可以根据负载信息判断是否进行节能操作，例如关断小区。其中，负载信息可以包括无线资源的使用量、用户数量、RRC连接数量等。举个例子，网络设备可以根据负载信息，在夜间关断覆盖办公楼所在区域的小区。
进一步地，除了关断小区这一节能操作外，本申请实施例中，网络设备还可以进行更细粒度的节能操作，比如网络设备可以进行时域、频域、空域的关断操作，从而更加有效地降低网络设备的功耗。
如前文所述，终端设备可以和两个网络设备建立连接，具体来说，终端设备和两个网 络设备建立连接的具体实现可以有多种，比如终端设备可以先与主网络设备建立连接，进而主网络设备可以通过辅基站添加流程为终端设备添加辅网络设备。下面结合图4描述一种可能的流程。
图4为本申请实施例提供的添加辅网络设备的流程示意图。如图4所示，该流程可以包括：
S401，第一网络设备向终端设备发送测量配置信息，比如测量配置信息可以包括需要终端设备测量的频率信息；相应地，终端设备可以接收测量配置信息并执行测量。
示例性地，第一网络设备可以通过RRC重配置消息向终端设备发送测量配置信息。
S402，终端设备向第一网络设备上报测量报告，测量报告可以包括W个小区的标识以及W个小区的测量结果；相应地，第一网络设备可以接收测量报告。其中，W为正整数。
此处，W个小区可以为同一个网络设备管理的小区或者也可以为不同网络设备管理的小区，比如W个小区可以包括第二网络设备管理的至少一个小区。
示例性地，小区的测量结果可以包括小区的参考信号接收功率(reference signal receiving power，RSRP)或参考信号接收质量(reference signal receiving quality，RSRQ)，具体不做限定。
S403，第一网络设备根据W个小区的测量结果，向第二网络设备发送辅基站添加请求(SeNB addition request)消息，辅基站添加请求消息用于请求添加第二网络设备为终端设备的辅网络设备。
此处，第一网络设备可以根据W个小区的测量结果，判断是否请求添加第二网络设备为辅网络设备。若第一网络设备决定请求添加第二网络设备为辅网络设备，则可以向第二网络设备发送辅基站添加请求消息；若第一网络设备决定不请求添加第二网络设备为辅网络设备，则可以不发送辅基站添加请求消息，此种情形下，第一网络设备后续可以尝试添加其它网络设备为终端设备的辅网络设备。
其中，第一网络设备判断是否请求添加第二网络设备为辅网络设备的情形可以有多种。比如，第一网络设备确定满足预设条件后，可以决定请求添加第二网络设备为辅网络设备。其中，预设条件可以包括条件1，第一网络设备确定满足条件1可以是指：第一网络设备确定W个小区中第二网络设备管理的M个小区的测量结果均大于或等于阈值1。其中，M为正整数，且M小于或等于W。
可选地，预设条件还可以包括其它可能的条件，比如条件2，第一网络设备确定满足条件2可以是指：第一网络设备确定需要辅网络设备分流终端设备的数据。其中，第一网络设备确定需要辅网络设备分流终端设备的数据的情形可以有多种，此处描述三种可能的情形。
情形1，第一网络设备确定终端设备即将到达或已经到达的业务数据对传输速率要求较高(比如传输速率大于或等于阈值2)，则可以确定需要辅网络设备分流终端设备的数据。
情形2，第一网络设备确定终端设备即将到达或已经到达的业务数据对可靠性要求较高(比如可靠性大于或等于阈值3)，则可以确定需要辅网络设备分流终端设备的数据。
本申请实施例中，上述对传输速率要求较高或对可靠性要求较高的数据可以统称为关键数据。其中，对传输速率要求较高也可以理解为对传输时延要求较高。
情形3，第一网络设备确定第一网络设备缓存的终端设备的数据量大于或等于阈值4， 则可以确定需要辅网络设备分流终端设备的数据。
示例性地，辅基站添加请求消息可以包括M个小区的标识。可选地，辅基站添加请求消息还可以包括其它可能的信息，比如M个小区的测量结果，具体不做限定。辅基站添加请求消息用于请求添加第二网络设备为终端设备的辅网络设备，也可以替换为，辅基站添加请求消息用于请求将M个小区添加到终端设备的辅小区组中。
S404，第二网络设备接收到来自第一网络设备的辅基站添加请求消息后，若确定能接纳终端设备，则可以为终端设备分配无线资源，并向第一网络设备发送辅基站添加请求确认(SeNB addition request acknowledge)消息。
此处，确认消息可以包括第二网络设备为终端设备分配的M个小区的无线资源信息。
S405，第一网络设备向终端设备发送辅基站添加指示信息，辅基站添加指示信息指示添加第二网络设备为终端设备的辅网络设备。
示例性地，辅基站添加指示信息可以承载于RRC重配置消息，辅基站添加指示信息可以包括第二网络设备为终端设备分配的M个小区的无线资源信息，具体不做限定。
S406，终端设备在M个小区中的一个小区(该小区即为PSCell)上向第二网络设备发起随机接入，进而与第二网络设备建立连接。
S407，第一网络设备和第二网络设备传输终端设备的数据。
采用上述图4所示意的流程，第一网络设备可以为终端设备添加第二网络设备为辅网络设备。然而，当引入网络设备的节能技术后，第二网络设备的M个小区可能处于节能状态。此种情形下，如果第一网络设备通过上述图4所示意的流程添加第二网络设备为终端设备的辅网络设备，则可能会难以满足终端设备的数据传输需求(比如终端设备的关键数据到达，当M个小区处于节能状态时，难以满足关键数据的传输需求)。
基于此，本申请实施例提供一种通信方法，用于实现在为终端设备添加辅网络设备时考虑候选辅网络设备的节能信息，从而便于添加合适的网络设备为终端设备的辅网络设备。
下面结合实施例一和实施例二对本申请实施例提供的通信方法进行详细描述。
实施例一
图5为本申请实施例一提供的通信方法所对应的流程示意图。如图5所示，该方法包括：
S501，第一网络设备向第二网络设备发送第一请求信息，第一请求信息包括M个小区的标识；相应地，第二网络设备可以接收第一请求信息，第一请求信息用于请求M个小区的节能信息。其中，M个小区为第二网络设备管理的小区，或者也可以理解为，第二网络设备为该M个小区提供服务。
示例性地，第一网络设备确定满足预设条件后，可以向第二网络设备发送第一请求信息。第一网络设备满足预设条件的具体实现，可以参照图4的描述。
作为一种可能的实现，第一网络设备和第二网络设备可以是同一无线接入技术下的网络设备，例如都是5G通信系统中的网络设备或都是4G通信系统中的网络设备，或者第一网络设备和第二网络设备也可以是不同的无线接入技术下的网络设备，例如一个是4G通信系统中的网络设备，另一个是5G通信系统中的网络设备。
S502，第二网络设备向第一网络设备发送M个小区的节能信息；相应地，第一网络设备可以接收M个小区的节能信息。
示例性地，M个小区包括第一小区，以第一小区为例，第一小区的节能信息可以包括 节能状态信息和/或辅助信息，节能状态信息用于指示第一小区是否处于节能状态，辅助信息包括第一小区在节能状态下的相关信息。当节能状态信息用于指示第一小区处于节能状态时，第一小区的节能信息还可以包括辅助信息；当节能状态信息用于指示第一小区处于非节能状态时，第一小区的节能信息不包括辅助信息。此外，第一小区的节能信息也可以包括辅助信息，而不包括节能状态信息，此种情形下，可以通过辅助信息隐式指示第一小区处于节能状态。其中，辅助信息可以包括以下(1)至(7)中的至少一项。
(1)节能方向信息
节能方向信息用于指示第一小区的节能方向，节能方向包括上行方向和/或下行方向。当节能方向为上行方向时，是指第二网络设备在第一小区的上行方向上进行了节能操作；当节能方向为下行方向时，是指第二网络设备在第一小区的下行方向上进行了节能操作。
(2)节能模式信息
节能模式信息用于指示第一小区的节能模式，第一小区的节能模式可以为半静态节能模式、动态节能模式或混合节能模式。其中，如图6所示，半静态节能模式是指在半静态节能模式的一个周期内，部分资源可用，部分资源不可用。动态节能模式是指可用的资源和不可用的资源动态出现，没有固定的周期。混合节能模式是指同时配置了半静态节能模式和动态节能模式。可以理解的是，此处所描述的资源可以是指物理资源块(physical resource block，PRB)或符号或时隙，图6中是以资源为PRB为例进行示意的。此外，本申请实施例中所涉及的不可用均是指第二网络设备为了节能而执行关断所导致的不可用。
示例性地，节能模式信息指示第一小区的节能模式的指示方式可以有多种。比如节能模式信息可以包括两个比特；当两个比特的取值为00时，表示节能模式为半静态节能模式，当两个比特的取值为01时，表示节能模式为动态节能模式，当两个比特的取值为11时，表示节能模式为混合节能模式。
当节能模式为半静态节能模式时，节能模式信息还可以包括以下至少一项：半静态节能模式的周期；一个周期内可用的时域资源(比如符号或时隙)占比；一个周期内不可用的时域资源占比；一个周期内可用的PRB占比；一个周期内不可用的PRB占比；预设时间段内实际使用的PRB占比。比如，一个周期的长度为X1个符号，可用的时域资源的长度为Y1个符号，则一个周期内可用的时域资源占比为Y1/X1。又比如，一个周期共包括X2个PRB，其中有Y2个PRB可用，则一个周期内可用的PRB占比为Y2/X2。
(3)节能程度信息
节能程度信息用于指示第一小区的节能程度，节能程度可以为第一节能程度或第二节能程度。其中，第一数据传输速率小于第二数据传输速率，第一数据传输速率为第一小区在节能方向上的节能程度为第一节能程度时能够为终端设备提供的最大数据传输速率，第二数据传输速率为第一小区在节能方向上的节能程度为第二节能程度时能够为终端设备提供的最大数据传输速率。
示例性地，第一节能程度可以称为深度节能，第二节能程度可以称为轻度节能。比如，当第一小区的节能模式为半静态节能模式，且一个周期内可用的时域资源占比大于或等于阈值5或一个周期内可用的PRB占比大于或等于阈值6时，第一小区在节能方向上的节能程度为轻度节能，反之，第一小区在节能方向上的节能程度为深度节能。比如，阈值5和阈值6可以是预先存储在网络设备中的。
(4)节能对象信息
节能对象信息用于指示第一小区的节能对象，节能对象可以包括以下至少一项：同步信号/物理广播信道块(synchronization signal/physical broadcast channel block，SSB)、随机接入信号、配置授权资源、系统信息、探测参考信号(sounding reference signal，SRS)、物理上行控制信道(physical uplink control channel，PUCCH)。
示例性地，当节能对象包括SSB时，是指第二网络设备针对第一小区的SSB进行了节能，比如第二网络设备增大了第一小区的SSB的发送周期；当节能对象包括随机接入信号时，是指第二网络设备针对第一小区的随机接入信号进行了节能，比如第二网络设备增大了用于承载随机接入信号的随机接入资源的周期。其它节能对象可以参照处理。
(5)节能载波信息
节能载波信息用于指示第一小区不可用的载波，比如节能载波信息可以包括第一小区不可用的载波的标识。
示例性地，第一小区可以包括一个下行载波和/或一个或多个上行载波，当第一小区包括多个上行载波时，多个上行载波可以包括一个普通上行(normal uplink，NUL)载波和至少一个增补上行(supplementary uplink，SUL)载波。以第一小区包括多个上行载波(比如上行载波1、上行载波2)和一个下行载波为例，第一小区不可用的载波可以为上行载波1，或者也可以为上行载波2，或者也可以为上行载波1和上行载波2，又或者也可以为上行载波1、上行载波2和下行载波。
当第一小区的载波均不可用时，可以理解为第二网络设备关断了第一小区，此种情形下，节能载波信息可以直接指示第一小区处于关断状态，而无需再包括第一小区不可用的载波的标识。
(6)节能资源信息
节能资源信息用于指示第一小区不可用的空域资源。示例性地，第一小区不可用的空域资源可以包括以下至少一项：不可用的天线端口数量；不可用的波束数量；不可用的通道数量；不可用的天线数量；不可用的TRP数量；不可用的功率放大器的数量。其中，不可用的波束可以包括发射波束和/或接收波束，不可用的通道可以包括发射通道和/或接收通道，不可用的天线可以包括发射天线和/或接收天线。
(7)第一小区能够为终端设备提供的最大数据传输速率。
可以理解的是，以M个小区均处于节能状态为例，第二网络设备可以向第一网络设备发送M个小区中每个小区能够为终端设备提供的最大数据传输速率(比如上行方向和/或下行方向上的最大数据传输速率)，比如M个小区包括小区1、小区2......小区m，小区1能够为终端设备提供的最大数据传输速率V1，小区2能够为终端设备提供的最大数据传输速率V2......小区m能够为终端设备提供的最大数据传输速率Vm。或者，第二网络设备也可以向第一网络设备发送M个小区总共能够为终端设备提供的最大数据传输速率V0，V0＝V1+V2+......+Vm。
S503，第一网络设备根据M个小区的节能信息，向第二网络设备发送第二请求信息，第二请求信息用于请求将M个小区中的N个小区添加到终端设备的辅小区组中，或者说第二请求信息用于请求添加第二网络设备为终端设备的辅网络设备。其中，N为正整数，且N小于或等于M。
此处，第二请求信息比如可以为辅基站添加请求消息。
作为一种可能的实现，第一网络设备可以根据M个小区的节能信息，从M个小区中 选择N个小区，并向第二网络设备发送第二请求信息。以第一小区为例，第一网络设备可以根据第一小区的节能信息，判断是否选择第一小区。比如，若第一小区处于非节能状态，则可以选择第一小区；若第一小区处于节能状态，则可以不选择第一小区。又比如，若第一小区在节能方向上的节能程度为轻度节能，则可以选择第一小区；若第一小区在节能方向上的节能程度为深度节能，则可以不选择第一小区。又比如，若第一小区的节能对象包括SSB、随机接入信号、配置授权资源、系统信息、SRS、PUCCH中的至少一项，则可以不选择第一小区，否则，可以选择第一小区。
作为又一种可能的实现，第一网络设备可以根据M个小区的节能信息和终端设备的数据传输需求，若确定M个小区中存在能够满足终端设备的数据传输需求的N个小区，则可以决定请求添加第二网络设备为终端设备的辅网络设备，并向第二网络设备发送第二请求信息；否则，可以不向第二网络设备发送第二请求信息。比如，终端设备的数据传输需求可以包括传输可靠性需求，传输速率需求，传输方向需求(比如需要传输的数据为上行数据和/或下行数据)、传输时延需求等，具体不做限定。
其中，第一网络设备根据M个小区的节能信息和终端设备的数据传输需求，判断M个小区中是否存在N个小区的实现方式可以有多种。
比如一种方式为：第一网络设备判断M个小区在上行方向或下行方向上总共能够为终端设备提供的最大数据传输速率是否大于或等于终端设备的业务数据所要求的数据传输速率，如果是，则第一网络设备可以确定M个小区能够满足终端设备的数据传输需求(此种情形下，M＝N)，并向第二网络设备发送第二请求信息；否则，第一网络设备可以决定不请求添加第二网络设备为终端设备的辅网络设备，即不发送第二请求信息。
又一种可能的方式为：第一网络设备根据M个小区的节能信息和终端设备的数据传输需求，从M个小区中选择N个小区，并向第二网络设备发送第二请求信息。以第一小区为例，第一网络设备可以根据第一小区的节能信息和终端设备的数据传输需求，判断是否选择第一小区。比如，终端设备具有下行数据的传输需求，没有上行数据的传输需求，若第一小区的节能方向为上行方向，则可以选择第一小区；若第一小区的节能方向为下行方向，则可以不选择第一小区。又比如，终端设备的数据(比如超高可靠与低时延通信(ultra reliable low latency communication，URLLC)数据)对传输时延要求较高，若第一小区在节能方向上的节能模式为动态节能模式，则可以选择第一小区；若第一小区在节能方向上的节能模式为半静态节能模式，则可以不选择第一小区。
可以理解的是，第一网络设备根据M个小区的节能信息，决定是否请求添加第二网络设备为辅网络设备的具体方式取决于第一网络设备的内部实现，上述所描述仅为一些可能的示例，本申请实施例对此不做限定。
采用上述方法，第一网络设备可以根据第二网络设备的M个小区的节能信息，决定是否请求添加第二网络设备为终端设备的辅网络设备，比如若M个小区均为深度节能，此种情形下，很大可能会导致第二网络设备无法满足终端设备的数据传输需求，进而第一网络设备可以不请求添加第二网络设备为终端设备的辅网络设备。如此，由于第一网络设备在为终端设备添加辅网络设备时，考虑了候选辅网络设备管理的小区的节能信息，从而便于添加合适的网络设备为终端设备的辅网络设备。
上述第一网络设备和第二网络设备可以均为基站，或者第一网络设备可以为CU，第二网络设备可以为DU。也就是说，DU也可以向CU发送DU管理的至少一个小区的节能 信息，进而CU可以根据至少一个小区的节能信息决定是否将这些小区添加到终端设备的辅小区中，具体实现可以参照上文。
可选地，上述方法还可以包括：
S504，第二网络设备接收到来自第一网络设备的第二请求信息后，若确定能接纳终端设备，则可以为终端设备分配无线资源，并向第一网络设备发送确认消息，确认消息比如可以为辅基站添加请求确认消息。
S505，第一网络设备接收到来自第二网络设备的确认消息后，可以指示终端设备添加第二网络设备为终端设备的辅网络设备，进而第一网络设备和第二网络设备可以传输终端设备的数据。
上述S504和S505的具体实现可以参照图4中S404至S407的描述。
可以理解的是，第一网络设备添加第二网络设备为终端设备的辅网络设备之后，第一网络设备还可以根据N个小区的节能信息，执行其它可能的操作。比如，第一网络设备还可以根据N个小区的节能信息，决定分流多少数据给第二网络设备，比如若N个小区均处于节能状态，则可以向第二网络设备分流较少数据，否则，可以向第二网络设备分流较多数据。又比如，第一网络设备还可以根据N个小区的节能信息，决定终端设备的主小区组中的小区要不要进入节能状态，比如若N个小区均处于非节能状态，且终端设备需要传输的数据量也不多，则第一网络设备可以决定将主小区组的一个或多个小区进入节能状态。
可选地，第一网络设备添加第二网络设备为终端设备的辅网络设备之后，上述方法还可以包括其它可能的步骤，下面结合实现方式1至实现方式4，描述几种可能的实现。
实现方式1
在实现方式1中，上述方法还可以包括：
S506-a，第二网络设备更新N个小区中至少一个小区的节能信息后，向第一网络设备发送第一指示信息，第一指示信息指示第二网络设备更新了至少一个小区的节能信息。比如，第一指示信息可以包括更新后的至少一个小区的节能信息。
示例性地，第一指示信息可以承载于辅基站释放请求消息或者其它可能的消息，具体不做限定。
作为一种可能的实现，至少一个小区可以包括主辅小区和/或第二网络设备管理的除主辅小区以外的辅小区。也就是说，第二网络设备可以在更新N个小区中的任一小区的节能信息后，向第一网络设备发送第一指示信息。
作为又一种可能的实现，至少一个小区包括主辅小区。也就是说，第二网络设备可以在更新主辅小区的节能信息后，向第一网络设备发送第一指示信息；若是第二网络设备更新了除主辅小区以外的其它辅小区的节能信息，而没有更新主辅小区的节能信息，则可以不向第一网络设备发送第一指示信息。
可选地，针对于上述两种可能的实现，以主辅小区为例，第二网络设备在更新主辅小区的节能信息后，可以选择性地向第一网络设备发送第一指示信息。比如，若第二网络设备将主辅小区的节能程度由轻度节能更新为深度节能，则可以向第一网络设备发送更新后的主辅小区的节能信息；若第二网络设备将主辅小区的节能程度由深度节能更新为轻度节能，则可以无需向第一网络设备发送第一指示信息。
S507-a，第一网络设备根据第一指示信息，确定是否释放第二网络设备。
示例性地，第一网络设备接收到第一指示信息后，根据第一指示信息所包括的更新后的至少一个小区的节能信息，若确定N个小区无法满足终端设备的数据传输需求，则可以释放第二网络设备，并尝试为终端设备添加其它的辅网络设备；若确定N个小区仍能够满足终端设备的数据传输需求，则可以不释放第二网络设备，并继续通过第二网络设备分流终端设备的数据。或者，第一网络设备也可以在接收到第一指示信息后，便释放第二网络设备(比如参见上文所述，以主辅小区为例，第二网络设备是在主辅小区的节能程度由轻度节能更新为深度节能的情形下，向第一网络设备发送第一指示信息；由于主辅小区在深度节能状态下很大可能会难以满足终端设备的数据传输需求，因此，第一网络设备可以直接释放第二网络设备)。
采用上述方法，第二网络设备在更新至少一个小区的节能信息后，可以通知给第一网络设备，从而在第二网络设备所管理的小区由于节能信息更新而无法满足终端设备的数据传输需求时，第一网络设备可以及时调整数据传输方式，例如释放第二网络设备，并尝试添加其它的辅网络设备，避免影响终端设备的数据传输。
实现方式2
在实现方式2中，上述方法还可以包括：
S506-b，第二网络设备向第一网络设备发送第三请求信息，第三请求信息用于请求更新N个小区中至少一个小区的节能信息。
示例性地，第三请求信息可以包括第二网络设备将要更新的至少一个小区的目标节能信息。也就是说，当第二网络设备想要更新至少一个小区的节能信息时，可以先向第一网络设备发送第三请求信息。
S507-b，第一网络设备接收到第三请求信息后，根据第三请求信息确定是否允许第二网络设备更新至少一个小区的节能信息。
示例性地，第一网络设备若确定允许第二网络设备更新至少一个小区的节能信息，则可以向第二网络设备发送第二指示信息，第二指示信息指示允许第二网络设备更新至少一个小区的节能信息；若确定不允许第二网络设备更新至少一个小区的节能信息，则可以向第二网络设备发送第三指示信息，第三指示信息指示不允许第二网络设备更新至少一个小区的节能信息，或者也可以释放第二网络设备。
作为一种可能的实现，第一网络设备可以根据第二网络设备将要更新的至少一个小区的目标节能信息和终端设备的数据传输需求，确定是否允许第二网络设备更新至少一个小区的节能信息。比如，第一网络设备若确定第二网络设备将至少一个小区的节能信息更新为目标节能信息后，仍然能够满足终端设备的数据传输需求，则可以允许第二网络设备更新至少一个小区的节能信息。
采用上述方法，第二网络设备可以先向第一网络设备请求是否允许更新至少一个小区的节能信息，若第一网络设备允许，则第二网络设备才可以更新至少一个小区的节能信息。也就是说，第一网络设备可以控制第二网络设备更新至少一个小区的节能信息，从而能够有效保证在不影响终端设备的数据传输的同时，实现第二网络设备的节能。
实现方式3
在实现方式3中，上述方法还可以包括：
S506-c，第一网络设备向第二网络设备发送第四请求信息，第四请求信息用于请求第二网络设备更新N个小区中至少一个小区的节能信息。
示例性地，第一网络设备确定满足以下(1)(2)(3)中的至少一项后，向第二网络设备发送第四请求信息。其中，(1)终端设备的数据传输需求发生变化；(2)终端设备的关键数据即将到达或已经到达；(3)缓存在第一网络设备的终端设备的数据量大于或等于阈值4。比如，第一网络设备确定终端设备的新业务数据到达，新业务数据的传输时延要求较高(即终端设备的数据传输需求发生变化)，若N个小区中的至少一个小区的节能模式为半静态节能模式(半静态节能模式难以满足传输时延要求)，则可以向第二网络设备发送第四请求信息。进一步地，第四请求信息可以包括原因值，原因值用于指示第一网络设备请求第二网络设备更新N个小区中至少一个小区的节能信息的原因，该原因可以为上述(1)(2)(3)中的至少一项。
其中，N个小区最新的节能信息可以是第二网络设备主动发送给第一网络设备的，或者也可以是第二网络设备基于第一网络设备的请求而发送给第一网络设备的。
S507-c，第二网络设备接收到第四请求信息后，可以根据第四请求信息，更新N个小区中至少一个小区的节能信息，并向第一网络设备发送第四指示信息，第四指示信息指示第二网络设备已更新至少一个小区的节能信息。
或者，第二网络设备也可以根据第四请求信息，不更新N个小区中的至少一个小区的节能信息，并向第一网络设备发送第五指示信息，第五指示信息指示第二网络设备不更新至少一个小区的节能信息。此种情形下，第五指示信息可以承载于辅基站释放请求消息，相应地，第一网络设备接收到辅基站释放请求消息后，可以释放第二网络设备。
采用上述方法，第一网络设备可以请求第二网络设备更新至少一个小区的节能信息，从而使得第二网络设备可以基于第一网络设备的请求来更新至少一个小区的节能信息，以便于满足终端设备的数据传输需求。
实现方式4
在实现方式4中，上述方法还可以包括：
S506-d，第一网络设备确定不需要第二网络设备分流终端设备的数据后，向第二网络设备发送第六指示信息，第六指示信息指示不需要第二网络设备分流终端设备的数据。
此处，第一网络设备确定不需要第二网络设备分流终端设备的数据的情形可以有多种，比如终端设备的关键数据传输完成和/或缓存在第一网络设备的终端设备的数据量小于阈值4。
可以理解的是，第一网络设备确定不需要第二网络设备分流终端设备的数据，可以是指，第一网络设备确定暂时不需要第二网络设备分流终端设备的数据，后续还有可能再次需要第二网络设备分流终端设备的数据。
S507-d，第二网络设备接收到第六指示信息，可以根据第六指示信息灵活决定要不要更新N个小区中至少一个小区的节能信息。
示例性地，如果第二网络设备更新N个小区中至少一个小区的节能信息，则可以向第一网络设备发送第一指示信息，第一指示信息指示第二网络设备更新了至少一个小区的节 能信息。
后续，第一网络设备确定需要第二网络设备分流终端设备的数据后，可以根据N个小区最新的节能信息，判断N个小区是否能够满足终端设备的数据传输需求，若满足，则第一网络设备可以通过第二网络设备分流终端设备的数据。否则，第一网络设备可以释放第二网络设备，或者执行S506-c。
采用上述方法，第二网络设备在获知第一网络设备确定不需要第二网络设备分流终端设备的数据后，可以灵活决定要不要更新N个小区中至少一个小区的节能信息，比如第二网络设备可以在N个小区中的至少一个小区上采取更节能的操作，从而能够在节能的同时不影响终端设备数据传输。
实施例二
图7为本申请实施例二提供的通信方法所对应的流程示意图。如图7所示，该方法包括：
S701，第一网络设备向第二网络设备发送第五请求信息，第五请求信息包括M个小区的标识，第五请求信息用于请求第二网络设备根据M个小区的节能信息，确定M个小区是否可以添加到终端设备的辅小区组中。
可选地，第五请求信息还可以包括终端设备的数据传输需求信息。
S702，第二网络设备接收到第五请求信息后，可以向第一网络设备发送第七指示信息，第七指示信息指示M个小区中的N个小区可以添加到终端设备的辅小区组中。
作为一种可能的实现，第二网络设备接收到第五请求信息后，可以从M个小区中选择N个小区，并向第二网络设备发送第七指示信息。比如，第二网络设备可以根据M个小区的节能信息，从M个小区中选择N个小区。比如，若M个小区有N个小区均处于非节能状态，则可以向第一网络设备发送第七指示信息，第七指示信息指示M个小区中的N个小区可以添加到终端设备的辅小区组中。
作为又一种可能的实现，若第五请求信息还包括终端设备的数据传输需求信息，则第二网络设备可以M个小区的节能信息和终端设备的数据传输需求，若确定M个小区中存在能够满足终端设备的数据传输需求的N个小区，则可以向第一网络设备发送第七指示信息。
S703，第一网络设备接收到第七指示信息后，向第二网络设备发送第二请求信息，第二请求信息用于请求将N个小区添加到终端设备的辅小区组中，或者说第二请求信息用于请求添加第二网络设备为终端设备的辅网络设备。
S704，第二网络设备接收到来自第一网络设备的第二请求信息后，若确定能接纳终端设备，则可以为终端设备分配无线资源，并向第一网络设备发送确认消息。
S705，第一网络设备接收到来自第二网络设备的确认消息后，可以指示终端设备添加第二网络设备为终端设备的辅网络设备，进而第一网络设备和第二网络设备可以传输终端设备的数据。
S706，第二网络设备更新N个小区中至少一个小区的节能信息后，向第一网络设备发送第六请求信息，第六请求信息用于请求释放第二网络设备。
示例性地，第六请求信息可以携带原因值，原因值用于指示请求释放第二网络设备的原因，比如该原因可以为：更新N个小区的节能信息后，N个小区无法满足终端设备的数 据传输需求。也就是说，第二网络设备更新N个小区中至少一个小区的节能信息后，若N个小区仍然满足终端设备的数据传输需求，则可以不向第一网络设备发送第六请求信息；若N个小区无法满足终端设备的数据传输需求，则可以向第一网络设备发送第六请求信息。
S707，第一网络设备接收到第六请求信息后，可以根据第六请求信息释放第二网络设备。
采用上述方法，第一网络设备可以先向第二网络设备发送请求信息，在第二网络设备根据M个小区的节能信息，确定M个小区中的N个小区可以添加到终端设备的辅小区组后，第一网络设备再请求第二网络设备将N个小区可以添加到终端设备的辅小区组。如此，由于为终端设备添加辅网络设备时，考虑了候选辅网络设备管理的小区的节能信息，从而便于添加合适的网络设备为终端设备的辅网络设备。
针对于上述实施例一和实施例二，可以理解的是：
(1)实施例一和实施例二所描述的各个流程图的步骤编号仅为执行流程的一种示例，并不构成对步骤执行的先后顺序的限制，本申请实施例中相互之间没有时序依赖关系的步骤之间没有严格的执行顺序。各个流程图中所示意的步骤并非全部是必须执行的步骤，可以根据实际需要在各个流程图的基础上删除部分步骤，或者也可以根据实际需要在各个流程图的基础上增添其它可能的步骤。
(2)上述侧重描述了实施例一和实施例二的差异之处，除差异之处的其它内容，实施例一和实施例二可以相互参照；此外，同一实施例中，不同实现方式或不同示例之间也可以相互参照。
上述主要从通信装置交互的角度对本申请实施例提供的方案进行了介绍。可以理解的是，为了实现上述功能，网络设备可以包括执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，本申请的实施例能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
本申请实施例可以根据上述方法示例对网络设备进行功能单元的划分，例如，可以对应各个功能划分各个功能单元，也可以将两个或两个以上的功能集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
在采用集成的单元的情况下，图8示出了本申请实施例中所涉及的装置的可能的示例性框图。如图8所示，装置800可以包括：处理单元802和通信单元803。处理单元802用于对装置800的动作进行控制管理。通信单元803用于支持装置800与其他设备的通信。可选地，通信单元803也称为收发单元，可以包括接收单元和/或发送单元，分别用于执行接收和发送操作。装置800还可以包括存储单元801，用于存储装置800的程序代码和/或数据。
该装置800可以为上述实施例中的第一网络设备。处理单元802可以支持装置800执行上文中各方法示例中第一网络设备的动作。或者，处理单元802主要执行方法示例中第二网络设备的内部动作，通信单元803可以支持装置800与其它设备之间的通信。
比如，在一个实施例中，通信单元803用于：接收来自第二网络设备的M个小区的节能信息，所述M个小区为所述第二网络设备管理的小区；以及，根据所述M个小区的节能信息，向所述第二网络设备发送第二请求信息，所述第二请求信息用于请求将所述M个小区中的N个小区添加到所述终端设备的辅小区组中。
该装置800可以为上述实施例中的第二网络设备。处理单元802可以支持装置800执行上文中各方法示例中第二网络设备的动作。或者，处理单元802主要执行方法示例中第二网络设备的内部动作，通信单元803可以支持装置800与其它设备之间的通信。
比如，在一个实施例中，通信单元803用于：向第一网络设备发送M个小区的节能信息，所述M个小区为所述第二网络设备管理的小区；接收所述第一网络设备根据所述M个小区的节能信息发送的第二请求信息，所述第二请求信息用于请求将所述M个小区中的N个小区添加到所述终端设备的辅小区组中。
应理解以上装置中单元的划分仅仅是一种逻辑功能的划分，实际实现时可以全部或部分集成到一个物理实体上，也可以物理上分开。且装置中的单元可以全部以软件通过处理元件调用的形式实现；也可以全部以硬件的形式实现；还可以部分单元以软件通过处理元件调用的形式实现，部分单元以硬件的形式实现。例如，各个单元可以为单独设立的处理元件，也可以集成在装置的某一个芯片中实现，此外，也可以以程序的形式存储于存储器中，由装置的某一个处理元件调用并执行该单元的功能。此外这些单元全部或部分可以集成在一起，也可以独立实现。这里所述的处理元件又可以成为处理器，可以是一种具有信号的处理能力的集成电路。在实现过程中，上述方法的各操作或以上各个单元可以通过处理器元件中的硬件的集成逻辑电路实现或者以软件通过处理元件调用的形式实现。
在一个例子中，以上任一装置中的单元可以是被配置成实施以上方法的一个或多个集成电路，例如：一个或多个特定集成电路(application specific integrated circuit，ASIC)，或，一个或多个微处理器(digital singnal processor，DSP)，或，一个或者多个现场可编程门阵列(field programmable gate array，FPGA)，或这些集成电路形式中至少两种的组合。再如，当装置中的单元可以通过处理元件调度程序的形式实现时，该处理元件可以是处理器，比如通用中央处理器(central processing unit，CPU)，或其它可以调用程序的处理器。再如，这些单元可以集成在一起，以片上系统(system-on-a-chip，SOC)的形式实现。
以上用于接收的单元是一种该装置的接口电路，用于从其它装置接收信号。例如，当该装置以芯片的方式实现时，该接收单元是该芯片用于从其它芯片或装置接收信号的接口电路。以上用于发送的单元是一种该装置的接口电路，用于向其它装置发送信号。例如，当该装置以芯片的方式实现时，该发送单元是该芯片用于向其它芯片或装置发送信号的接口电路。
参见图9，为本申请实施例提供的一种网络设备的结构示意图，该网络设备(比如基站)可应用于如图1所示的通信系统中，执行上述方法实施例中第一网络设备或第二网络设备的功能。如图9所示，网络设备90可包括一个或多个DU 901和一个或多个CU 902。所述DU 901可以包括至少一个天线9011，至少一个射频单元9012，至少一个处理器9013和至少一个存储器9014。所述DU 901部分主要用于射频信号的收发以及射频信号与基带信号的转换，以及部分基带处理。CU902可以包括至少一个处理器9022和至少一个存储器9021。
所述CU 902部分主要用于进行基带处理，对网络设备进行控制等。所述DU 901与CU 902可以是物理上设置在一起，也可以物理上分离设置的，即分布式基站。所述CU 902为网络设备的控制中心，也可以称为处理单元，主要用于完成基带处理功能。例如所述CU 902可以用于控制网络设备执行上述方法实施例中关于网络设备的操作流程。
此外，可选的，网络设备90可以包括一个或多个射频单元，一个或多个DU和一个或多个CU。其中，DU可以包括至少一个处理器9013和至少一个存储器9014，射频单元可以包括至少一个天线9011和至少一个射频单元9012，CU可以包括至少一个处理器9022和至少一个存储器9021。
在一个实例中，所述CU902可以由一个或多个单板构成，多个单板可以共同支持单一接入指示的无线接入网(如5G网)，也可以分别支持不同接入制式的无线接入网(如LTE网，5G网或其他网)。所述存储器9021和处理器9022可以服务于一个或多个单板。也就是说，可以每个单板上单独设置存储器和处理器。也可以是多个单板共用相同的存储器和处理器。此外每个单板上还可以设置有必要的电路。所述DU901可以由一个或多个单板构成，多个单板可以共同支持单一接入指示的无线接入网(如5G网)，也可以分别支持不同接入制式的无线接入网(如LTE网，5G网或其他网)。所述存储器9014和处理器9013可以服务于一个或多个单板。也就是说，可以每个单板上单独设置存储器和处理器。也可以是多个单板共用相同的存储器和处理器。此外每个单板上还可以设置有必要的电路。
图9所示的网络设备能够实现上述方法实施例中涉及第一网络设备或第二网络设备的各个过程。图9所示的网络设备中的各个模块的操作和/或功能，分别为了实现上述方法实施例中的相应流程。具体可参见上述方法实施例中的描述，为避免重复，此处适当省略详述描述。
本申请实施例中的术语“系统”和“网络”可被互换使用。“至少一种”是指一种或者多种，“多个”是指两个或两个以上。“和/或”，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的情况，其中A，B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一项(个)”或其类似表达，是指的这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如“A，B和C中的至少一个”包括A，B，C，AB，AC，BC或ABC。以及，除非有特别说明，本申请实施例提及“第一”、“第二”等序数词是用于对多个对象进行区分，不用于限定多个对象的顺序、时序、优先级或者重要程度。
本领域内的技术人员应明白，本申请的实施例可提供为方法、系统、或计算机程序产品。因此，本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本申请是参照根据本申请的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然，本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和范围。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (26)

  1. 一种通信方法，其特征在于，所述方法适用于第一网络设备或者所述第一网络设备中的模块，所述方法包括：
    接收来自第二网络设备的M个小区的节能信息，所述M个小区为所述第二网络设备管理的小区；
    根据所述M个小区的节能信息，向所述第二网络设备发送第二请求信息，所述第二请求信息用于请求将所述M个小区中的N个小区添加到终端设备的辅小区组中；
    其中，M、N为正整数，且N小于或等于M。
  2. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    向所述第二网络设备发送第一请求信息，所述第一请求信息包括所述M个小区的标识，所述第一请求信息用于请求所述M个小区的节能信息；其中，所述M个小区是所述第一网络设备根据所述终端设备上报的W个小区的测量结果从所述W个小区中选择的；W为正整数，且W大于或等于M。
  3. 根据权利要求1或2所述的方法，其特征在于，所述M个小区包括第一小区，所述第一小区的节能信息包括以下至少一项：
    节能状态信息，所述节能状态信息用于指示所述第一小区是否处于节能状态；
    节能方向信息，所述节能方向信息用于指示所述第一小区的节能方向，所述节能方向包括上行方向和/或下行方向；
    节能模式信息，所述节能模式信息用于指示所述第一小区所使用的节能模式，所述节能模式为半静态节能模式、动态节能模式或混合节能模式；
    节能程度信息，所述节能程度信息用于指示所述第一小区的节能程度；
    节能对象信息，所述节能对象信息用于指示所述第一小区的节能对象，所述节能对象包括以下至少一项：同步信号/物理广播信道块SSB、随机接入信号、配置授权、系统信息、探测参考信号SRS、物理上行控制信道PUCCH；
    节能载波信息，所述节能载波信息用于指示所述第一小区不可用的载波；
    节能资源信息，所述节能资源信息用于指示所述第一小区不可用的空域资源；
    所述第一小区能够为所述终端设备提供的最大数据传输速率。
  4. 根据权利要求3所述的方法，其特征在于，当所述节能模式为半静态节能模式时，所述节能模式信息包括以下至少一项：
    所述半静态节能模式的周期；
    所述周期内可用的时域资源占比；
    所述周期内不可用的时域资源占比；
    所述周期内可用的物理资源块PRB占比；
    所述周期内不可用的PRB占比；
    预设时间段内实际使用的PRB占比。
  5. 根据权利要求3或4所述的方法，其特征在于，所述第一小区不可用的空域资源包括以下至少一项：
    不可用的端口数量；
    不可用的波束数量；
    不可用的通道数量；
    不可用的天线数量；
    不可用的传输接收点TRP数量；
    不可用的功率放大器的数量。
  6. 根据权利要求1至5中任一项所述的方法，其特征在于，所述方法还包括：
    接收来自所述第二网络设备的第一指示信息，所述第一指示信息指示所述第二网络设备更新了所述N个小区中至少一个小区的节能信息。
  7. 根据权利要求6所述的方法，其特征在于，所述第一指示信息包括更新后的所述至少一个小区的节能信息；
    所述方法还包括：
    根据更新后的所述至少一个小区的节能信息，释放所述第二网络设备。
  8. 根据权利要求1至5中任一项所述的方法，其特征在于，所述方法还包括：
    接收来自所述第二网络设备的第三请求信息，所述第三请求信息用于请求更新所述N个小区中至少一个小区的节能信息；
    根据所述第三请求信息，向所述第二网络设备发送第二指示信息，所述第二指示信息指示允许所述第二网络设备更新所述至少一个小区的节能信息。
  9. 根据权利要求1至5中任一项所述的方法，其特征在于，所述方法还包括：
    向所述第二网络设备发送第四请求信息，所述第四请求信息用于请求所述第二网络设备更新所述N个小区中至少一个小区的节能信息。
  10. 根据权利要求9所述的方法，其特征在于，向所述第二网络设备发送第四请求信息之前，还包括以下至少一项：
    确定所述终端设备的数据传输需求发生变化；
    确定所述终端设备的关键数据即将到达或已经到达；
    确定缓存在第一网络设备的所述终端设备的数据量大于或等于阈值。
  11. 一种通信方法，其特征在于，所述方法适用于第二网络设备或者所述第二网络设备中的模块，所述方法包括：
    向第一网络设备发送M个小区的节能信息，所述M个小区为所述第二网络设备管理的小区；
    接收所述第一网络设备根据所述M个小区的节能信息发送的第二请求信息，所述第二请求信息用于请求将所述M个小区中的N个小区添加到终端设备的辅小区组中；
    其中，M、N为正整数，且N小于或等于M。
  12. 根据权利要求11所述的方法，其特征在于，所述方法还包括：
    接收来自所述第一网络设备的第一请求信息，所述第一请求信息包括所述M个小区的标识，所述第一请求信息用于请求所述M个小区的节能信息；其中，所述M个小区是所述第一网络设备根据所述终端设备上报的W个小区的测量结果从所述W个小区中选择的；W为正整数，且W大于或等于M。
  13. 根据权利要求11或12所述的方法，其特征在于，所述M个小区包括第一小区，所述第一小区的节能信息包括以下至少一项：
    节能状态信息，所述节能状态信息用于指示所述第一小区是否处于节能状态；
    节能方向信息，所述节能方向信息用于指示所述第一小区的节能方向，所述节能方向 包括上行方向和/或下行方向；
    节能模式信息，所述节能模式信息用于指示所述第一小区所使用的节能模式，所述节能模式为半静态节能模式、动态节能模式或混合节能模式；
    节能程度信息，所述节能程度信息用于指示所述第一小区的节能程度；
    节能对象信息，所述节能对象信息用于指示所述第一小区的节能对象，所述节能对象包括以下至少一项：SSB、随机接入信号、配置授权、系统信息、SRS、PUCCH；
    节能载波信息，所述节能载波信息用于指示所述第一小区不可用的载波；
    节能资源信息，所述节能资源信息用于指示所述第一小区不可用的空域资源；
    所述第一小区能够为所述终端设备提供的最大数据传输速率。
  14. 根据权利要求13所述的方法，其特征在于，当所述节能模式为半静态节能模式时，所述节能模式信息包括以下至少一项：
    所述半静态节能模式的周期；
    所述周期内可用的时域资源占比；
    所述周期内不可用的时域资源占比；
    所述周期内可用的PRB占比；
    所述周期内不可用的PRB占比；
    预设时间段内实际使用的PRB占比。
  15. 根据权利要求13或14所述的方法，其特征在于，所述第一小区不可用的空域资源包括以下至少一项：
    不可用的端口数量；
    不可用的波束数量；
    不可用的通道数量；
    不可用的天线数量；
    不可用的传输接收点TRP数量；
    不可用的功率放大器的数量。
  16. 根据权利要求11至15中任一项所述的方法，其特征在于，所述方法还包括：
    向所述第一网络设备发送第一指示信息，所述第一指示信息指示所述第二网络设备更新了所述N个小区中至少一个小区的节能信息。
  17. 根据权利要求16所述的方法，其特征在于，所述第一指示信息包括更新后的所述至少一个小区的节能信息。
  18. 根据权利要求11至15中任一项所述的方法，其特征在于，所述方法还包括：
    向所述第一网络设备发送第三请求信息，所述第三请求信息用于请求更新所述N个小区中至少一个小区的节能信息；
    接收来自所述第一网络设备的第二指示信息，所述第二指示信息指示允许所述第二网络设备更新所述至少一个小区的节能信息。
  19. 根据权利要求11至15中任一项所述的方法，其特征在于，所述方法还包括：
    接收来自所述第一网络设备的第四请求信息，所述第四请求信息用于请求所述第二网络设备更新所述N个小区中至少一个小区的节能信息。
  20. 根据权利要求19所述的方法，其特征在于，所述第四请求信息包括原因值，所述原因值用于指示以下至少一项：
    所述终端设备的数据传输需求发生变化；
    所述终端设备的关键数据即将到达或已经到达；
    缓存在所述第一网络设备的所述终端设备的数据量大于或等于阈值。
  21. 一种通信装置，其特征在于，包括用于执行如权利要求1至10中任一项所述方法的模块，或者包括用于执行如权利要求11至20中任一项所述方法的模块。
  22. 一种通信装置，其特征在于，包括处理器，所述处理器和存储器耦合，所述存储器中存储有计算机程序；所述处理器用于调用所述存储器中的计算机程序，使得所述通信装置执行如权利要求1至10中任一所述的方法或者如权利要求11至20中任一所述的方法。
  23. 一种通信装置，其特征在于，包括处理器和接口电路，所述接口电路用于接收来自所述通信装置之外的其它通信装置的信号并传输至所述处理器或将来自所述处理器的信号发送给所述通信装置之外的其它通信装置，所述处理器通过逻辑电路或执行代码指令用于实现如权利要求1至10中任一项所述的方法或者如权利要求11至20中任一项所述的方法。
  24. 一种计算机可读存储介质，其特征在于，所述存储介质中存储有计算机程序或指令，当所述计算机程序或指令被计算机执行时，实现如权利要求1至20中任一项所述的方法。
  25. 一种计算机程序产品，其特征在于，当计算机读取并执行所述计算机程序产品时，使得计算机执行权利要求1至20中任一项所述的方法。
  26. 一种通信系统，其特征在于，包括执行如权利要求1至10中任一项所述方法的第一网络设备和执行如权利要求11至20中任一项所述方法的第二网络设备。
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