WO2022067575A1 - 测量报告上报方法及装置 - Google Patents

测量报告上报方法及装置 Download PDF

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Publication number
WO2022067575A1
WO2022067575A1 PCT/CN2020/119050 CN2020119050W WO2022067575A1 WO 2022067575 A1 WO2022067575 A1 WO 2022067575A1 CN 2020119050 W CN2020119050 W CN 2020119050W WO 2022067575 A1 WO2022067575 A1 WO 2022067575A1
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WIPO (PCT)
Prior art keywords
terminal
message
access network
network device
communication
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PCT/CN2020/119050
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English (en)
French (fr)
Inventor
刘圆圆
陈洪强
韩磊
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华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN202080012090.XA priority Critical patent/CN114586405B/zh
Priority to PCT/CN2020/119050 priority patent/WO2022067575A1/zh
Publication of WO2022067575A1 publication Critical patent/WO2022067575A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports

Definitions

  • the present application relates to the field of communication technologies, and in particular, to a method and device for reporting a measurement report.
  • the non-standalone (NSA) networking adopts the 4G-5G dual connection (EN-DC) method, and anchors the 5G new radio (NR) control plane (control plane) to the 4G long term evolution (long term evolution).
  • EN-DC 4G-5G dual connection
  • NR new radio
  • control plane control plane
  • long term evolution long term evolution
  • LTE long term evolution
  • 5G NR is used to carry user plane services.
  • the control plane is the channel used to send and schedule signaling required for resources
  • the user plane is the channel used to transmit user data.
  • the 5G base station Under the NSA network, the 5G base station is attached to the existing 4G core network, which can save the construction of the 5G core network and speed up the 5G deployment process.
  • 4G and 5G Due to the dual-connection feature of 4G and 5G, NSA networking is more likely to expose network compatibility issues than standalone (SA) networking, resulting in the establishment of EN- After DC, services cannot be provided normally.
  • VOLTE voice over long term evolution
  • SCG NR secondary cell group
  • the present application provides a method and device for reporting a measurement report, which are used to reduce the probability that the VOLTE service process is affected under the NSA networking framework, so as to ensure that the terminal can normally make a VOLTE voice call.
  • a method for reporting a measurement report including: a terminal transmits an INVITE message; the terminal receives measurement configuration information; the terminal suspends sending a measurement report before sending first indication information, and the first indication information uses to indicate that the radio bearer of the voice service has been established; the terminal sends a measurement report after sending the first indication information.
  • the terminal transmits an INVITE message, indicating that the terminal is executing the VOLTE service process.
  • the terminal receives the measurement configuration information.
  • the terminal suspends sending the measurement report. In this way, since the network side cannot receive the measurement report sent by the terminal, the network side will not send the SCG configuration information to the terminal, thereby preventing the terminal from performing the operation of adding NR SCG and establishing the radio bearer of the voice service at the same time.
  • the technical solution of the present application can avoid the conflict between the adding operation of NR SCG and the establishment operation of the radio bearer of the voice service, reduce the failure rate of establishing the radio bearer of the voice service, and improve the success rate of the VOLTE service.
  • the terminal transmitting the INVITE message includes: the terminal sending the INVITE message.
  • the terminal transmitting the INVITE message includes: the terminal receiving the INVITE message.
  • the terminal receiving the measurement configuration information includes: the terminal receiving a radio resource control (radio Resource Control, RRC) connection reconfiguration message that is sent by the access network device and carries the measurement configuration information.
  • RRC radio Resource Control
  • the access network device supports a 4G communication standard, and the measurement configuration information is used to configure the terminal to measure the NR cell.
  • the method further includes: receiving, by the terminal, first request information, where the first request information is used to request establishment of a radio bearer of the voice service.
  • the first request information is an activation dedicated evolved packet system (evolved packet system, EPS) bearer context request message
  • the first indication information is an activation dedicated EPS bearer context accept message
  • the method further includes: receiving, by the terminal, an RRC connection reconfiguration message carrying SCG configuration information of the NR secondary cell group sent by the access network device; sending, by the terminal, to the access network device RRC connection reconfiguration complete message.
  • a communication device including: a communication module and a processing module.
  • the communication module is used for transmitting an INVITE message; receiving measurement configuration information; and suspending sending a measurement report before sending first indication information, where the first indication information is used to indicate that a radio bearer of the voice service has been established.
  • the processing module is configured to generate a measurement report after sending the first indication information.
  • the communication module is further configured to send the measurement report generated by the processing module after sending the first indication information.
  • the communication module when the communication device is the calling terminal, the communication module is specifically configured to send the INVITE message.
  • the device when the communication device is a called terminal, the device is specifically configured to receive the INVITE message.
  • the communication module is specifically configured to receive an RRC connection reconfiguration message that carries measurement configuration information and is sent by the access network device.
  • the access network device supports a 4G communication standard, and the measurement configuration information is used to configure the terminal to measure the NR cell.
  • the communication module is further configured to receive first request information, where the first request information is used to request establishment of a radio bearer of the voice service.
  • the first request information is an activation dedicated EPS bearer context request message
  • the first indication information is an activation dedicated EPS bearer context accept message
  • the communication module is specifically configured to receive the RRC connection reconfiguration message that carries the SCG configuration information of the NR secondary cell group sent by the access network device; and send the RRC connection reconfiguration message to the access network device.
  • Configuration complete message is specifically configured to receive the RRC connection reconfiguration message that carries the SCG configuration information of the NR secondary cell group sent by the access network device; and send the RRC connection reconfiguration message to the access network device.
  • a communication device in a third aspect, includes a processor and a transceiver, and the processor and the transceiver are used to implement any one of the methods provided in the first aspect.
  • the processor is configured to perform processing actions in the corresponding method
  • the transceiver is configured to perform the actions of receiving/transmitting in the corresponding method.
  • a chip including: a processing circuit and a transceiver pin, the processing circuit and the transceiver pin being used to implement the method provided in the first aspect.
  • the processing circuit is used for executing the processing actions in the corresponding method
  • the transceiver pins are used for executing the actions of receiving/transmitting in the corresponding method.
  • a computer-readable storage medium stores computer instructions, which, when the computer instructions are executed on a computer, cause the computer to execute any one of the methods provided in the first aspect.
  • a computer program product carrying computer instructions when the computer instructions are executed on a computer, the computer can execute any one of the methods provided in the first aspect.
  • FIG. 1 is a schematic diagram of the architecture of a dual-connection network according to an embodiment of the present application
  • FIG. 2 is a schematic structural diagram of a dual-connection network according to an embodiment of the present application.
  • FIG. 3 is a schematic structural diagram of a dual-connection network according to an embodiment of the present application.
  • FIG. 4 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a VOLTE business process in the related art
  • Fig. 6 is the schematic diagram of a kind of NR SCG adding process in the related art
  • FIG. 7 is a flowchart of a method for reporting a measurement report provided by an embodiment of the present application.
  • FIG. 8 is a flowchart of another measurement report reporting method provided by an embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of another communication apparatus provided by an embodiment of the present application.
  • DC dual connectivity
  • MN master node
  • SN secondary node
  • the master node and the core network are connected through the S1/NG interface.
  • the master node and the core network include at least a control plane connection, and may also have a user plane connection.
  • the S1 interface includes S1-U/NG-U and S1-C/NG-C. Among them, S1-U/NG-U represents the user plane connection, and S1-C/NG-C represents the control plane connection.
  • the master node may also be called a master base station or a master access network device, and the SN may also be called a secondary base station or a slave access network device.
  • the master node manages a primary cell (PCell).
  • the primary cell refers to a cell deployed at the primary frequency point and accessed when the terminal initiates the initial connection establishment process or the RRC connection re-establishment process, or is indicated as the primary cell during the handover process.
  • the primary node may also manage one or more secondary cells (secondary cells, SCells).
  • secondary cells secondary cells
  • MCG master cell group
  • the secondary node manages a primary secondary cell (PSCell).
  • the primary and secondary cell may be a cell accessed by the terminal during the random access process initiated by the terminal to the secondary node, or a cell on another secondary node where the terminal skips the random access process to initiate data transmission during the secondary node change process, or executes When synchronizing the reconfiguration process, initiate the cell on the secondary node that is accessed in the random access process.
  • the secondary node may also manage one or more secondary cells.
  • the cells on the secondary node that provide services for the terminal, such as the primary and secondary cells and the secondary cells on the secondary node, may be collectively referred to as SCG.
  • the primary cell and the primary and secondary cells are collectively referred to as a special cell (special cell, SpCell).
  • the terminal is a device with a wireless transceiver function.
  • Terminals can be deployed on land, including indoor or outdoor, handheld or vehicle; can also be deployed on water (such as ships, etc.); can also be deployed in the air (such as aircraft, balloons and satellites, etc.).
  • the terminal may be user equipment (user equipment, UE).
  • the UE includes a handheld device, a vehicle-mounted device, a wearable device or a computing device with a wireless communication function.
  • the UE may be a mobile phone, a tablet computer, or a computer with a wireless transceiver function.
  • the terminal may also be a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in unmanned driving, a wireless terminal in telemedicine, and a smart grid.
  • the device for implementing the function of the terminal may be a terminal, or may be a device capable of supporting the terminal to implement the function, such as a chip system.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • the above-mentioned primary node and secondary node may be collectively referred to as network devices.
  • the network devices include but are not limited to: access points (APs) in wireless fidelity (WiFi) systems, such as home gateways, routers, servers, switches, bridges, etc., evolved Node B (evolved Node B (eNB), Radio Network Controller (RNC), Node B (Node B, NB), Base Station Controller (BSC), Base Transceiver Station (BTS), Home Base station (for example, home evolved Node B, or home Node B, HNB), baseband unit (baseband unit, BBU), wireless relay node, wireless backhaul node, transmission point (transmission and reception point, TRP or transmission point, TP ), etc., and can also be 5G, such as a gNB in a new radio (NR) system, or a transmission point (TRP or TP), one or a group of base stations in a 5G system (including multiple antenna panels)
  • the antenna panel alternatively
  • the network device may adopt a centralized unit (centralized unit, CU)-DU architecture. That is, the network device may be composed of a CU and at least one DU. In this case, some functions of the network device are deployed on the CU, and another part of the functions of the network device are deployed on the DU.
  • CU and DU are functionally divided according to the protocol stack.
  • the CU deploys the RRC layer in the protocol stack, the packet data convergence protocol (PDCP) layer, and the service data adaptation protocol (SDAP) layer;
  • the DU deploys the protocol The radio link control (RLC) layer, the media access control (MAC) layer, and the physical layer (PHY) in the stack.
  • RLC radio link control
  • MAC media access control
  • PHY physical layer
  • the CU has the processing capabilities of RRC, PDCP and SDAP.
  • DU has the processing capability of RLC, MAC and PHY. It can be understood that the division of the above functions is only an example, and does not constitute a limitation on the CU and the DU. That is to say, there may also be other functional division manners between the CU and the DU, which are not described in detail in this embodiment of the present application.
  • the dual-connection network can be implemented in multiple ways, which are described below with examples.
  • FIG. 1 it is a schematic diagram of an LTE-NR Dual Connectivity (E-UTRA-NR Dual Connectivity, EN-DC) network.
  • the EN-DC network is a dual connection between the 4G radio access network and 5G NR, with the LTE base station (LTE eNB) as the MN and the NR base station (NR gNB) as the SN.
  • LTE eNB LTE base station
  • NR gNB NR base station
  • S1 interface between the LTE eNB and the evolved Packet Core (EPC) of the LTE system at least a control plane connection and a user plane connection.
  • EPC evolved Packet Core
  • there is an S1-U interface between the NR gNB and the EPC that is, only a user plane connection is possible.
  • FIG. 2 it is a schematic diagram of an NR-LTE dual connectivity (NR-E-UTRA Dual Connectivity, NE-DC) network.
  • the NE-DC network is a dual connection between the 4G radio access network and 5G NR under the 5G core network.
  • the NR base station (gNB) is used as the MN
  • the LTE base station (ng-eNB) is used as the SN
  • both the MN and the SN are connected to the 5G core network ( 5th Generation Core Network, 5GC).
  • 5G core network 5th Generation Core Network, 5GC
  • FIG. 3 it is a schematic diagram of the 5G core network LTE-NR dual connectivity (Next Generation E-UTRA-NR Dual Connectivity, NGEN-DC) network.
  • the NGEN-DC network is a dual connection between the 4G radio access network and 5G NR under the 5G core network.
  • the LTE base station (ng-eNB) acts as the MN
  • the NR base station (gNB) acts as the SN
  • both the MN and the SN are connected to the 5GC.
  • ng-eNB acts as the MN
  • gNB acts as the SN
  • both the MN and the SN are connected to the 5GC.
  • there is an NG interface between the ng-eNB and the 5GC which can establish a control plane connection and a user plane connection for the terminal, and the gNB sends the user plane data to the 5GC through the ng-eNB.
  • there is an NG-U interface between the gNB and the 5GC which only establishes a user plane connection for the
  • the user plane connection may not be established between the SN and the core network, but data is transmitted via the MN.
  • the data of the terminal arrives at the MN first, and the MN is at the PDCP layer.
  • the data of the terminal is distributed to the SN, where the distributed data is in the form of, for example, a PDCP protocol data unit (Protocol Data Unit, PDU).
  • PDU Protocol Data Unit
  • EPS bearers are used to transport IMS SIP signaling messages and user voice data packets.
  • An EPS bearer is composed of an evolved radio access bearer (Evolved radio access bearer, E-RAB) and an S5 interface bearer (S5 bearer).
  • E-RAB is further composed of a radio bearer (RB) of an air interface (Uu) and an S1 interface bearer (S1beaerer).
  • the RB of the Uu interface can be further divided into a signaling radio bearer (signaling radio bearer, SRB) and a data radio bearer (data radio bearer, DRB).
  • SRB signaling radio bearer
  • DRB data radio bearer
  • SRBs can be divided into the following 3 categories:
  • SRB0 established on the common control channel (common control channel, CCCH), used to transmit RRC layer signaling messages.
  • CCCH common control channel
  • SRB1 established on a dedicated control channel (DCCH), mainly used to transmit RRC layer signaling messages, and can also transmit NAS layer messages together with RRC layer signaling messages in an embedded manner.
  • DCCH dedicated control channel
  • DRB is used to carry user plane data.
  • a maximum of 8 DRBs can be established between the UE and the base station.
  • QCI is a parameter used by the system to identify the transmission characteristics of service data packets.
  • a QCI mainly includes the following information: resource type (resource type), priority (priority), data delay (packet delay budget), and data packet loss rate (packet error loss rate).
  • EPS bearers can be divided into guaranteed bit rate (guaranteed bit rate, GBR) type bearers and Non-GBR type bearers.
  • GBR guaranteed bit rate
  • GBR means that the bit rate required by the bearer can be maintained even in the case of tight network resources. Therefore, the GBR type bearer is used for services that require high real-time performance.
  • Non-GBR means that in the case of network congestion, the bearer needs to bear the requirement of reducing the bit rate.
  • Non-GBR bearers are used for services that do not require high real-time performance.
  • a communication system supporting a VOLTE voice service may include a calling terminal, a called terminal, an access network device #1 that provides services for the calling terminal, Evolved Packet Core Network (EPC) #1, Internet Protocol Multimedia Subsystem (IMS), and Access Network Equipment# 2. and EPC#2 that provides services for the called terminal.
  • EPC Evolved Packet Core Network
  • IMS Internet Protocol Multimedia Subsystem
  • EPC#2 Evolved Packet Core Network
  • EPC#2 that provides services for the called terminal.
  • the access network devices are responsible for all functions related to the air interface, such as radio link maintenance functions, radio resource management functions, and the like.
  • the access network device may be an evolved base station (evolved Node B, eNodeB).
  • EPC (eg EPC#1 and EPC#2 in Figure 4) is the core network of LTE, including multiple core network elements, such as mobility management entity (mobility management entity, MME), serving gateway (serving gateway, S-GW) ), public data network gateway (P-GW).
  • MME mobility management entity
  • S-GW serving gateway
  • P-GW public data network gateway
  • IMS is used for registration, authentication, control, routing, switching and media negotiation and conversion of VOLTE users.
  • IMS includes multiple network elements, such as call session control function (call session control function, CSCF) network element, home subscriber server (home subscriber server, HSS) and so on.
  • call session control function call session control function, CSCF
  • HSS home subscriber server
  • the following describes the VOLTE service flow between the calling terminal and the called terminal with reference to the communication system shown in FIG. 4 .
  • the VOLTE business process includes the following steps:
  • the calling terminal sends a request (INVITE) message to the IMS.
  • the INVITE message is used to indicate that the calling terminal initiates a voice session to the called terminal.
  • the INVITE message includes the number of the calling terminal, the media type and encoding supported by the calling terminal, and the like.
  • the calling terminal will perform the following steps S102-S105.
  • the calling terminal If the calling terminal is in the connected state, that is, the calling terminal has established an RRC connection with the access network device #1, so that the calling terminal does not need to perform the RRC procedure.
  • steps S102-S105 are all optional steps.
  • the calling terminal may choose to execute some or all of the following steps S102-S105 according to its own situation.
  • a service request (service request) process is performed between the calling terminal and the access network device #1.
  • an RRC procedure (procedure) is performed between the calling terminal and the access network device #1.
  • the access network device #1 sends an RRC connection setup (RRC connection setup) message to the calling terminal. After that, the calling terminal sends an RRC connection setup complete (RRC connection setup complete) message to the access network device #1.
  • RRC connection setup RRC connection setup
  • RRC connection setup complete RRC connection setup complete
  • S104 Execute a security procedure (security procedure) between the calling terminal and EPC#1.
  • EPC#1 sends a security mode command (security mode command) message to the calling terminal. After that, the calling terminal sends a security mode complete (security mode complete) message to EPC#1.
  • security mode command security mode command
  • security mode complete security mode complete
  • S105 The calling terminal and the access network device #1 perform an RRC connection reconfiguration (reconfig) process.
  • the calling terminal receives an RRC connection reconfiguration (RRC connection reconfiguration) message sent by the access network device #1. After that, the calling terminal sends an RRC connection reconfiguration complete (RRC connection reconfiguration complete) message to the access network device #1.
  • RRC connection reconfiguration RRC connection reconfiguration complete
  • the access network device #1 may send the RRC connection reconfiguration message to the calling terminal multiple times.
  • the calling terminal receives the INVITE 100 (TRYING) message sent by the IMS.
  • the IMS will also send an INVITE message to the EPC#2.
  • the INVITE100 (TRYING) message is a temporary response to the INVITE message sent by the calling terminal.
  • the INVITE100 (TRYING) message is used to indicate that the INVITE message sent by the calling terminal is being processed.
  • the called terminal when the called terminal is in an idle state, the communication system needs to perform the following steps S107-S111. Alternatively, when the called terminal is in the connected state, the called terminal may selectively execute some of the following steps S107-S111.
  • S107: EPC#2 sends a paging message to the called terminal in the idle state.
  • the access network device #2 sends an RRC connection setup message to the called terminal. After that, the called terminal sends an RRC connection setup complete message to the access network device #2.
  • EPC#2 sends a security mode command message to the called terminal; after that, the called terminal sends a security mode complete message to EPC#2.
  • the called terminal receives the RRC connection reconfiguration message sent by the access network device #2. After that, the called terminal sends an RRC connection reconfiguration complete message to the access network device #2.
  • the called terminal receives the INVITE message sent by EPC#2.
  • the called terminal sends an INVITE 100 message to the IMS.
  • the INVITE 100 message is used to indicate that the called terminal receives the INVITE message sent by EPC#2.
  • the called terminal sends an INVITE 183 message to the IMS.
  • the INVITE 183 message indicates that the current session (dialog) is being processed, and the INVITE 183 message includes the media type and encoding supported by the called terminal.
  • the called terminal starts the resource reservation (Precondition) process of the called terminal by sending the INVITE 183 message.
  • the calling terminal receives the INVITE 183 message sent by the IMS.
  • the calling terminal After receiving the INVITE 183 message, the calling terminal starts the resource reservation process of the calling terminal.
  • the calling terminal sends a provisional response acknowledgment (the provisional response ACK, PRACK) message to the IMS.
  • a provisional response acknowledgment the provisional response ACK, PRACK
  • the PRACK message is used to indicate that the calling terminal confirms the receipt of the INVITE 183 message.
  • the IMS sends a PRACK message to the called terminal.
  • the called terminal sends a PRACK 200 message to the IMS.
  • the PRACK 200 message is used to indicate that the called terminal confirms that the PRACK message is received.
  • the IMS sends a PRACK 200 message to the calling terminal.
  • the calling terminal sends an UPDATE message to the IMS.
  • the UPDATE message is used to indicate that the resource reservation process of the calling terminal has been completed.
  • the IMS sends an UPDATE message to the called terminal.
  • the called terminal sends an UPDATE 200 message to the IMS.
  • the UPDATE 200 message is used to indicate that the resource reservation process of the called terminal has been completed.
  • the IMS sends an UPDATE 200 message to the calling terminal.
  • the called terminal sends an INVITE 180 message to the IMS.
  • the INVITE 180 message is used to indicate that the called terminal is ringing.
  • the IMS sends an INVITE 180 message to the calling terminal.
  • the calling terminal starts to ring after receiving the INVITE 180 message.
  • the called terminal sends an INVITE 200 message to the IMS.
  • the INVITE 200 message is used to indicate that the called terminal is off-hook.
  • the IMS sends an INVITE 200 message to the calling terminal.
  • the calling terminal sends an acknowledgement (ACK) message to the IMS.
  • ACK acknowledgement
  • the IMS sends an ACK message to the called terminal.
  • the calling process can be performed between the calling terminal and the called terminal.
  • the calling terminal sends a goodbye (BYE) message to the IMS.
  • the BYE message is used to indicate that the calling terminal hangs up.
  • the IMS sends a BYE message to the called terminal.
  • the called terminal sends a BYE 200 message to the IMS.
  • the BYE 200 message is used to indicate that the called terminal hangs up.
  • the IMS sends a BYE 200 message to the calling terminal.
  • NSA non-standalone
  • the NR SCG addition process includes the following steps:
  • the access network device sends measurement configuration information to the terminal.
  • the measurement configuration information is carried in the RRC connection reconfiguration message.
  • the measurement configuration information may be used as the NR measurement information element in the RRC connection reconfiguration information.
  • the measurement configuration information is used to indicate the NR frequency point information that the terminal needs to measure.
  • the measurement configuration information may further include a list of NR cells.
  • the measurement configuration information is also used to indicate the duration of the configuration time (time to trigger) and the measurement report reporting requirements.
  • step S201 the terminal measures the NR cell according to the measurement configuration information. If the measurement result of the NR cell meets the measurement report reporting requirement within the configured time, the terminal may perform the following step S202.
  • the terminal sends a measurement report (measurement report) to the access network device.
  • the access network device sends an RRC connection reconfiguration message carrying the SCG configuration information to the terminal.
  • the terminal After the terminal receives the SCG configuration information, the terminal establishes at least two DRB bearers.
  • one of the two DRB bearers is referred to as a first DRB bearer for short, and the other DRB bearer is referred to as a second DRB bearer for short.
  • the first DRB has nothing to do with whether a voice call is initiated or not, and is only related to whether the RRC enters the connected state.
  • the second DRB is used to carry data services.
  • the terminal sends an RRC connection reconfiguration complete (RRC connection reconfiguration complete) message to the access network device.
  • RRC connection reconfiguration complete RRC connection reconfiguration complete
  • the VoLTE service process shown in Figure 5 and the NR SCG adding process shown in Figure 6 are independent of each other, and the two processes may be performed simultaneously.
  • an embodiment of the present application provides a method for reporting a measurement report. As shown in Figure 7, the method includes the following steps:
  • the terminal transmits an INVITE message.
  • the terminal may be the calling terminal or the called terminal in the VOLTE service process.
  • the INVITE message may contain the session type and at least one parameter for the call.
  • the session type may include: a voice session, a multimedia video session, and the like.
  • the parameters used for calling may be: the number of the calling terminal, the media type and encoding supported by the calling terminal, and the like.
  • step S301 may be specifically implemented as: the terminal sends an INVITE message.
  • step S301 may be specifically implemented as: the terminal receives an INVITE message.
  • the terminal receives the measurement configuration information sent by the first access network device.
  • the first access network device supports the 4G communication standard.
  • the first access network device is the access network device accessed by the terminal.
  • the measurement configuration information is used to configure the terminal to measure the NR cell.
  • the measurement configuration information may include one or more of the following parameters: a measurement object, a cell list, a reporting method, a measurement identifier, an event parameter, and the like.
  • the measurement object is used to indicate the radio access type (RAT) that needs to be measured, such as NR, EUTRA, etc.
  • the cell list includes one or more cell identities.
  • the reporting method can be periodic reporting or event-triggered reporting.
  • Event parameters may include event number, threshold value, configuration time, and the like.
  • the terminal may take one of the following operations:
  • Operation 1 The terminal suspends the measurement of the cell until the terminal establishes the radio bearer of the voice service.
  • the terminal may not need to perform the measurement operation, thereby reducing the power consumption of the terminal.
  • Operation 2 The terminal measures the cell according to the measurement configuration information, and stores the measurement data.
  • the terminal can feed back the measurement report to the first access network device according to the previously stored measurement data to reduce the delay in feeding back the measurement report.
  • the terminal in order to prevent the NR SCG from adding the context of the radio bearer of the voice service, when the terminal does not establish the radio bearer of the voice service, the terminal suspends sending the measurement report; after the terminal establishes the radio bearer of the voice service, the terminal Only allow measurement reports to be sent.
  • establishing the radio bearer of the voice service by the terminal includes the following steps: the terminal receives first request information from the first EPC, where the first request information is used to request the establishment of the radio bearer of the voice service.
  • the terminal establishes the context of the radio bearer of the voice service according to the first request information.
  • the terminal sends the first indication information to the first EPC, where the first indication information is used to indicate that the radio bearer of the voice service has been established.
  • the first EPC is an EPC that provides services for the terminal.
  • the transmission process of the first request information is: the first EPC sends an E-RAB setup request (E-RAB SETUP REQUEST) to the first access network device, and the E-RAB SETUP REQUEST carries the first request information.
  • the first access network device sends an RRC connection reconfiguration (RRC connection reconfiguration) message to the first terminal according to the E-RAB establishment request, where the RRC connection reconfiguration message carries the first request information.
  • RRC connection reconfiguration RRC connection reconfiguration
  • the transmission process of the first indication information is: the first terminal sends an uplink information transfer (UL information transfer) message to the first access network device, and the uplink information transfer message carries the first indication information. Afterwards, the first access network device sends an uplink non-access transport (UL NAS transport) message to the first EPC carrying the first indication information according to the uplink information delivery message.
  • UL information transfer uplink information transfer
  • NAS transport uplink non-access transport
  • the first request information may have other names, such as activate dedicated EPS bearer context request message (activate dedicated EPS bearer context request).
  • the first indication information may have other names, such as activate dedicated EPS bearer context accept message (activate dedicated EPS bearer context accept).
  • the terminal does not send the first indication information, indicating that the terminal has not completed the establishment of the radio bearer of the voice service, so the terminal performs the following step S303.
  • the terminal sends the first indication information, indicating that the terminal completes the establishment of the radio bearer of the voice service, so the terminal performs the following step S304.
  • the terminal Before sending the first indication information, the terminal suspends sending the measurement report.
  • the terminal suspends sending the measurement report, which may be specifically implemented as follows: the terminal does not perform cell measurement, and thus does not generate a corresponding measurement report, so the terminal does not need to send a measurement report.
  • the terminal suspends sending the measurement report, which can be specifically implemented as: the terminal performs cell measurement, but no matter whether the measurement result of the NR cell meets the measurement report reporting requirements, the terminal defaults that the measurement result of the NR cell does not meet the requirements. Measurement report reporting is required, so the terminal does not generate a corresponding measurement report, nor does it need to send a measurement report.
  • the terminal After sending the first indication information, the terminal sends a measurement report.
  • the measurement report includes: measurement results of one or more NR cells.
  • the measurement result of the NR cell may be the reference signal receiving power (reference signal receiving power, RSRP) and/or the reference signal receiving quality (reference signal receiving quality, RSRQ) of the NR cell.
  • RSRP reference signal receiving power
  • RSRQ reference signal receiving quality
  • the terminal performs cell measurement after sending the first indication information. Therefore, when the measurement result of the NR cell meets the measurement report reporting requirement, the terminal generates a corresponding measurement report, and sends the measurement report to the first access network device.
  • the terminal suspends sending the measurement report, so that the network side will not trigger the terminal to add the NR SCG, thereby avoiding
  • the operation of adding an NR SCG conflicts with the operation of establishing a radio bearer for voice services. Therefore, the embodiments of the present application are used to reduce the failure rate of radio bearer establishment of the voice service, and improve the success rate of the VOLTE service.
  • the method may further include the following steps:
  • the terminal receives an RRC connection reconfiguration message that is sent by the first access network device and carries the SCG configuration information.
  • the first access network device can determine whether to add the second access network device as the secondary node of the terminal according to the measurement report, and the second access network device
  • the device supports 5G standard.
  • the first access network device may send a secondary node addition request (SgNB addition request) to the second access network device, the The secondary node addition request includes RRC configuration information, radio bearer configuration information, and the like.
  • the second access network device sends a secondary node addition request acknowledgement (SgNB addition request acknowledge) message to the first access network device.
  • the first access network device sends an RRC connection reconfiguration message carrying the SCG configuration information to the terminal according to the secondary node addition request confirmation message.
  • the SCG configuration information includes the SCG information to be added and the NR DRB resource configuration information.
  • the terminal After the terminal receives the RRC connection reconfiguration message, the terminal parses the RRC connection reconfiguration message to obtain SCG configuration information. After that, the terminal determines 5G radio resources according to the SCG configuration information. Therefore, in the subsequent steps, the terminal can communicate with the second access network device on the 5G radio resource.
  • the terminal sends an RRC connection reconfiguration complete message to the first access network device.
  • the first access network device can learn, according to the RRC connection reconfiguration complete message, that the terminal has completed the RRC connection reconfiguration according to the previously sent RRC connection reconfiguration message. Therefore, the first access network device may send a secondary node reconfiguration complete (SgNB Reconfiguration complete) message to the second access network device.
  • SgNB Reconfiguration complete secondary node reconfiguration complete
  • the terminal may perform a random access procedure with the second access network device, so as to realize synchronization between the terminal and the second access network device.
  • the network side can add an SCG to the terminal, so that the terminal can communicate in a dual-connection manner, thereby improving the data transmission speed of the terminal.
  • FIG. 7 The embodiment shown in FIG. 7 is described below with reference to specific application scenarios.
  • the terminal is the calling terminal
  • a method for reporting a measurement report includes the following steps: S401-S412.
  • steps S401-S404 are steps that need to be performed by the calling terminal in the idle state, but are not mandatory steps for the calling terminal in the connected state.
  • a service request process is performed between the calling terminal and the access network device.
  • an RRC connection reconfiguration process is performed between the calling terminal and the access network device.
  • the calling terminal sends an INVITE message to the IMS.
  • the calling terminal receives the INVITE 100 (Trying) message sent by the IMS.
  • EPS bear setup procedure is used to establish the radio bearer of the voice service.
  • the calling terminal may execute the following step S408.
  • the calling terminal in order to avoid affecting the VOLTE service process, the calling terminal further performs the following steps S409-S410.
  • S408 The calling terminal receives the measurement configuration information sent by the access network device.
  • the calling terminal Before sending the first indication information, the calling terminal suspends sending the measurement report.
  • step S409 can also be described as: before completing the EPS bear setup procedure, the calling terminal suspends sending the measurement report.
  • the calling terminal After sending the first indication information, the calling terminal sends a measurement report.
  • step S410 can also be described as: after completing the EPS bear setup process, the calling terminal sends a measurement report.
  • the calling terminal receives the RRC connection reconfiguration message that carries the SCG configuration information and is sent by the access network device.
  • the calling terminal sends an RRC connection reconfiguration complete message to the first access network device.
  • the calling terminal when the calling terminal is executing the VOLTE service process, the calling terminal receives the measurement configuration information before establishing the radio bearer of the voice service, then before the calling terminal sends the first indication information, the calling terminal Call the terminal to suspend sending the measurement report to avoid the conflict between the operation of adding NR SCG and the establishment of radio bearer of voice service, thereby reducing the failure rate of radio bearer establishment of voice service and improving the success rate of VOLTE service.
  • the terminal is the called terminal
  • a method for reporting a measurement report includes the following steps: S501-S514.
  • steps S501-S505 are steps that need to be performed by the called terminal in the idle state, but are not mandatory steps for the called terminal in the connected state.
  • S501 (optional): The called terminal receives a paging message from the EPC.
  • a service request process is performed between the called terminal and the access network device.
  • an RRC process is performed between the called terminal and the access network device.
  • an RRC connection reconfiguration process is performed between the called terminal and the access network device.
  • the called terminal receives the INVITE message sent by the EPC.
  • the called terminal sends an INVITE 100 message to the IMS.
  • the called terminal sends an INVITE 183 message to the IMS.
  • the called terminal may execute the following step S510.
  • the called terminal in order to avoid affecting the VOLTE service process, the called terminal further executes the following steps S511-S512.
  • the called terminal receives the measurement configuration information sent by the access network device.
  • the called terminal Before sending the first indication information, the called terminal suspends sending the measurement report.
  • step S511 can also be described as: before completing the EPS bear setup procedure, the called terminal suspends sending the measurement report.
  • the called terminal After sending the first indication information, the called terminal sends a measurement report.
  • step S512 can also be described as: after completing the EPS bear setup process, the called terminal sends a measurement report.
  • the called terminal receives the RRC connection reconfiguration message that carries the SCG configuration information and is sent by the access network device.
  • S514 (optional): The called terminal sends an RRC connection reconfiguration complete message to the access network device.
  • the called terminal when the called terminal executes the VOLTE service process, the called terminal receives the measurement configuration information before establishing the radio bearer of the voice service, and before the called terminal sends the first indication information, the called terminal The terminal suspends sending the measurement report to avoid the conflict between the operation of adding NR SCG and the establishment of the radio bearer of the voice service, thereby reducing the failure rate of establishing the radio bearer of the voice service and improving the success rate of the VOLTE service.
  • the terminal includes corresponding hardware structures and/or software modules for executing each function.
  • the embodiments of this application can be implemented in hardware or a combination of hardware and computer software. Whether a function is performed by hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of the technical solutions of the embodiments of the present application.
  • the communication device may be divided into functional units according to the foregoing method examples.
  • each functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing unit.
  • the above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units. It should be noted that the division of units in the embodiments of the present application is illustrative, and is only a logical function division, and other division methods may be used in actual implementation.
  • a communication apparatus provided by an embodiment of the present application includes a processing module 101 and a communication module 102 .
  • the processing module 101 is configured to support the terminal to generate messages (eg, measurement reports), and to parse messages (eg, measurement configuration information).
  • the communication module 102 is used to support the terminal to perform steps S301-S304 in FIG. 7 , steps S305-S306 in FIG. 8 , steps S401-S412 in FIG. 9 , and steps S501-S514 in FIG. 10 .
  • the communication device may further include a storage module 103 for storing program codes and data of the communication device, and the data may include but not limited to original data or intermediate data.
  • the processing module 101 may be a processor or a controller, for example, a CPU, a general-purpose processor, a DSP, an ASIC, an FPGA, or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute the various exemplary logical blocks, modules and circuits described in connection with this disclosure.
  • a processor may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like.
  • the communication module 102 may be a communication interface, a transceiver or a transceiver circuit, etc., where the communication interface is a general term, and in a specific implementation, the communication interface may include multiple interfaces, for example, may include: an interface between a base station and a terminal and/or or other interfaces.
  • the storage module 103 may be a memory.
  • the processing module 101 is a processor
  • the communication module 102 is a communication interface
  • the storage module 103 is a memory
  • the communication device involved in the embodiment of the present application may be as shown in FIG. 12 .
  • the communication device includes: a processor 201 , a communication interface 202 , and a memory 203 .
  • the communication device may further include a bus 204 .
  • the communication interface 202, the processor 201 and the memory 203 can be connected to each other through a bus 204; the bus 204 can be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus etc.
  • the bus 204 can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in FIG. 12, but it does not mean that there is only one bus or one type of bus.
  • an embodiment of the present application further provides a computer program product carrying computer instructions, when the computer instructions are executed on the computer, the computer can execute the methods in the above-mentioned FIGS. 7-10 .
  • an embodiment of the present application further provides a computer-readable storage medium, where the computer-readable storage medium stores computer instructions, and when the computer instructions are executed on the computer, the computer is made to execute the above-mentioned FIG. 7-FIG. 10 . method.
  • an embodiment of the present application further provides a chip, including: a processing circuit and a transceiving pin, where the processing circuit and the transceiving pin are used to implement the methods in FIG. 7 to FIG. 10 .
  • the processing circuit is used for executing the processing actions in the corresponding method
  • the transceiver pins are used for executing the actions of receiving/transmitting in the corresponding method.
  • all or part of the embodiments may be implemented by software, hardware, firmware or any combination thereof.
  • software it can be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general purpose computer, special purpose computer, computer network, or other programmable device.
  • the computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be downloaded from a website site, computer, server, or data center Transmission to another website site, computer, server or data center by wire (eg coaxial cable, optical fiber, Digital Subscriber Line, DSL) or wireless (eg infrared, wireless, microwave, etc.).
  • the computer-readable storage medium may be any available medium that a computer can access, or a data storage device such as a server, a data center, or the like that includes an integration of one or more available media.
  • the available media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, Digital Video Disc (DVD)), or semiconductor media (eg, Solid State Disk (SSD)) Wait.
  • the disclosed system, apparatus and method may be implemented in other manners.
  • the apparatus embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple devices. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each functional unit may exist independently, or two or more units may be integrated into one unit.
  • the above-mentioned integrated units can be implemented in the form of hardware, or can be implemented in the form of hardware plus software functional units.
  • the present application can be implemented by means of software plus necessary general-purpose hardware, and of course hardware can also be used, but in many cases the former is a better implementation manner .
  • the technical solutions of the present application can be embodied in the form of software products in essence, or the parts that make contributions to the prior art.
  • the computer software products are stored in a readable storage medium, such as a floppy disk of a computer. , a hard disk or an optical disk, etc., including several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the various embodiments of the present application.

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Abstract

一种测量报告上报方法及装置，涉及通信技术领域，用于在NSA组网的架构下，降低VOLTE业务流程被影响的概率，从而保证终端能够正常进行VOLTE语音通话。该方法包括：终端发送或接收INVITE消息；终端接收测量配置信息；终端在发送第一指示信息之前，暂停发送测量报告，所述第一指示信息用于表示已建立语音业务的无线承载；所述终端在发送所述第一指示信息之后，发送测量报告。本申请适用于VOLTE业务流程中。

Description

测量报告上报方法及装置 技术领域
本申请涉及通信技术领域，尤其涉及测量报告上报方法及装置。
背景技术
非独立(non-standalone，NSA)组网采用4G-5G双连接(EN-DC)方式，将5G新空口(new radio，NR)控制面(control plane)锚定于4G长期演进(long term evolution，LTE)，5G NR用于承载用户面(user plane)的业务。控制面就是用来发送、调度资源所需信令的通道，用户面就是传输用户数据的通道。
在NSA组网下，5G基站依附现有4G核心网，可以省去5G核心网络建设、加快5G部署进程。但是，由于4G和5G的双连接特性，NSA组网相较于独立(standalone，SA)组网而言，更容易暴露出网络兼容性的问题，导致原本可以正常使用的LTE小区在建立EN-DC后，无法正常提供业务。
例如，若终端同时执行长期演进语音承载(voice over long term evolution，VOLTE)业务流程和NR辅小区组(secondary cell group，SCG)添加流程，则由于VOLTE业务流程和NR SCG添加流程中某些步骤发生冲突，导致VOLTE业务流程受到影响，导致终端出现VOLTE语音掉话的现象。
发明内容
本申请提供一种测量报告上报方法及装置，用于在NSA组网的架构下，降低VOLTE业务流程被影响的概率，从而保证终端能做正常进行VOLTE语音通话。
第一方面，提供一种测量报告上报方法，包括：终端传输INVITE消息；所述终端接收测量配置信息；所述终端在发送第一指示信息之前，暂停发送测量报告，所述第一指示信息用于表示已建立语音业务的无线承载；所述终端在发送所述第一指示信息之后，发送测量报告。
基于上述技术方案，终端传输INVITE消息，说明终端正在执行VOLTE业务流程。当终端执行VOLTE业务流程时，终端接收到测量配置信息。终端在发送第一指示信息之前，暂停发送测量报告。这样一来，由于网络侧接收不到终端发送的测量报告，因此网络侧不会向终端发送SCG配置信息，从而避免终端同时执行NR SCG的添加操作与语音业务的无线承载的建立操作。可见，本申请的技术方案能够避免NR SCG的添加操作与语音业务的无线承载的建立操作发生冲突，降低语音业务的无线承载建立的失败率，提高VOLTE业务的成功率。
一种可能的设计中，当所述终端为主叫终端时，所述终端传输INVITE消息，包括：所述终端发送所述INVITE消息。
一种可能的设计中，当所述终端为被叫终端时，所述终端传输INVITE消息，包括：所述终端接收所述INVITE消息。
一种可能的设计中，所述终端接收测量配置信息，包括：所述终端接收接入网设备发送的携带测量配置信息的无线资源控制(radio Resource Control，RRC)连接重配 置消息。
一种可能的设计中，所述接入网设备支持4G通信制式，所述测量配置信息用于配置终端对NR小区进行测量。
一种可能的设计中，该方法还包括：所述终端接收第一请求信息，所述第一请求信息用于请求建立所述语音业务的无线承载。
一种可能的设计中，所述第一请求信息为激活专用演进分组系统(evolved packet system，EPS)承载上下文请求消息，所述第一指示信息为激活专用EPS承载上下文接受消息。
一种可能的设计中，所述语音业务的无线承载为服务质量等级标识(QoS class identified，QCI)＝1的EPS承载。
一种可能的设计中，该方法还包括：所述终端接收所述接入网设备发送的携带NR辅小区组SCG配置信息的RRC连接重配置消息；所述终端向所述接入网设备发送RRC连接重配置完成消息。
第二方面，提供一种通信装置，包括：通信模块和处理模块。所述通信模块，用于传输INVITE消息；接收测量配置信息；在发送第一指示信息之前，暂停发送测量报告，所述第一指示信息用于表示已建立语音业务的无线承载。所述处理模块，用于在发送第一指示信息之后，生成测量报告。所述通信模块，还用于在发送第一指示信息之后，发送所述处理模块生成的测量报告。
一种可能的设计中，当所述通信装置为主叫终端时，所述通信模块，具体用于发送所述INVITE消息。
一种可能的设计中，当所述通信装置为被叫终端时，所述装置具体用于接收所述INVITE消息。
一种可能的设计中，所述通信模块，具体用于接收接入网设备发送的携带测量配置信息的RRC连接重配置消息。
一种可能的设计中，所述接入网设备支持4G通信制式，所述测量配置信息用于配置终端对NR小区进行测量。
一种可能的设计中，所述通信模块，还用于接收第一请求信息，所述第一请求信息用于请求建立所述语音业务的无线承载。
一种可能的设计中，所述第一请求信息为激活专用EPS承载上下文请求消息，所述第一指示信息为激活专用EPS承载上下文接受消息。
一种可能的设计中，所述语音业务的无线承载为QCI＝1的专用EPS承载对应的DRB。
一种可能的设计中，所述通信模块，具体用于接收所述接入网设备发送的携带NR辅小区组SCG配置信息的RRC连接重配置消息；向所述接入网设备发送RRC连接重配置完成消息。
第三方面，提供一种通信装置，所述通信装置包括处理器和收发器，处理器和收发器用于实现上述第一方面提供的任意一种方法。其中，处理器用于执行相应方法中的处理动作，收发器用于执行相应方法中的接收/发送的动作。
第四方面，提供一种芯片，包括：处理电路和收发管脚，处理电路和收发管脚用 于实现上述第一方面所提供的方法。其中，处理电路用于执行相应方法中的处理动作，收发管脚用于执行相应方法中的接收/发送的动作。
第五方面，提供一种计算机可读存储介质，所述计算机可读存储介质存储计算机指令，当该计算机指令在计算机上运行时，使得计算机执行第一方面所提供的任意一种方法。
第六方面，提供一种携带计算机指令的计算机程序产品，当该计算机指令在计算机上运行时，使得计算机执行第一方面所提供的任意一种方法。
需要说明的是，上述第二方面至第六方面中任一种设计所带来的技术效果可以参见第一方面中对应设计所带来的技术效果，此处不再赘述。
附图说明
图1为本申请实施例提供的一种双连接网络的架构示意图；
图2为本申请实施例提供的一种双连接网络的架构示意图；
图3为本申请实施例提供的一种双连接网络的架构示意图；
图4为本申请实施例提供的一种通信系统的架构示意图；
图5为相关技术中的一种VOLTE业务流程的示意图；
图6为相关技术中的一种NR SCG添加流程的示意图；
图7为本申请实施例提供的一种测量报告上报方法的流程图；
图8为本申请实施例提供的另一种测量报告上报方法的流程图；
图9为本申请实施例提供的另一种测量报告上报方法的流程图；
图10为本申请实施例提供的另一种测量报告上报方法的流程图；
图11为本申请实施例提供的一种通信装置的结构示意图；
图12为本申请实施例提供的另一种通信装置的结构示意图。
具体实施方式
在本申请的描述中，除非另有说明，“/”表示“或”的意思，例如，A/B可以表示A或B。本文中的“和/或”仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。此外，“至少一个”是指一个或多个，“多个”是指两个或两个以上。“第一”、“第二”等字样并不对数量和执行次序进行限定，并且“第一”、“第二”等字样也并不限定一定不同。
需要说明的是，本申请中，“示例性的”或者“例如”等词用于表示作例子、例证或说明。本申请中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其他实施例或设计方案更优选或更具优势。确切而言，使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念。
下面是对本申请所涉及的专业术语的简单介绍，以便于本领域技术人员对方案的理解。
1、双连接
在无线通信技术领域中，为了提升用户的吞吐率，引入了双连接(dual connectivity，DC)技术。DC可以支持两个或两个以上基站同时为一个终端提供数据传输服务。这些基站中包括一个主节点(master node，MN)，以及一个或多个辅节点(secondary node， SN)。
主节点与核心网(core network，CN)之间通过S1/NG接口连接。主节点与核心网之间至少包括控制面连接，还可以有用户面连接。S1接口包括S1-U/NG-U和S1-C/NG-C。其中，S1-U/NG-U代表用户面连接，S1-C/NG-C代表控制面连接。
辅节点与核心网之间可以具有用户面连接，也可以不具有用户面连接。当辅节点与核心网之间不具有用户面连接时，终端的数据可以由主节点在分组数据汇聚协议(packet data convergence protocol，PDCP)层分流给辅节点。该主节点又可被称为主基站或主接入网设备，SN又可被称为辅基站或辅接入网设备。
在双连接场景下，主节点管理一个主小区(primary cell，PCell)。其中，主小区是指部署在主频点，且在终端发起初始连接建立过程或RRC连接重建立过程中接入的小区，或者在切换过程中指示为主小区的小区。
进一步地，除主小区外，主节点还可以管理一个或多个辅小区(secondary cell，SCell)。主节点下为终端提供服务的小区，如主小区、主节点下的辅小区，可以统称为主小区组(master cell group，MCG)。
辅节点管理一个主辅小区(primary secondary cell，PSCell)。其中，主辅小区可以是终端向辅节点发起随机接入过程中接入的小区，或者终端在辅节点改变过程中跳过随机接入过程发起数据传输的另一辅节点上的小区，或者执行同步重配置流程时发起随机接入过程中接入的辅节点上的小区。
进一步地，除主辅小区外，辅节点还可以管理一个或多个辅小区。辅节点上为终端提供服务的小区，如主辅小区、辅节点上的辅小区，可以统称为SCG。
为便于描述，在NR协议中，将主小区和主辅小区统称为特别小区(special cell，SpCell)。
在本申请实施例中，终端是一种具有无线收发功能的设备。终端可以被部署在陆地上，包括室内或室外、手持或车载；也可以被部署在水面上(如轮船等)；还可以被部署在空中(例如飞机、气球和卫星上等)。终端可以是用户设备(user equipment，UE)。其中，UE包括具有无线通信功能的手持式设备、车载设备、可穿戴设备或计算设备。示例性地，UE可以是手机(mobile phone)、平板电脑或带无线收发功能的电脑。终端还可以是虚拟现实(virtual reality，VR)终端设备、增强现实(augmented reality，AR)终端设备、工业控制中的无线终端、无人驾驶中的无线终端、远程医疗中的无线终端、智能电网中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等等。本申请实施例中，用于实现终端的功能的装置可以是终端，也可以是能够支持终端实现该功能的装置，例如芯片系统。本申请实施例中，芯片系统可以由芯片构成，也可以包括芯片和其他分立器件。
上述主节点和辅节点可以统称为网络设备。该网络设备包括但不限于：无线保真(wireless fidelity，WiFi)系统中的接入点(access point，AP)，如家庭网关、路由器、服务器、交换机、网桥等，演进型节点B(evolved Node B，eNB)、无线网络控制器(radio network controller，RNC)、节点B(Node B，NB)、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 Node B，或home Node B，HNB)、基带单元(baseband unit，BBU)， 无线中继节点、无线回传节点、传输点(transmission and reception point，TRP或者transmission point，TP)等，还可以为5G，如，新空口(new radio，NR)系统中的gNB，或，传输点(TRP或TP)，5G系统中的基站的一个或一组(包括多个天线面板)天线面板，或者，还可以为构成gNB或传输点的网络节点，如基带单元(baseband unit，BBU)，或，分布式单元(distributed unit，DU)、具有基站功能的路边单元(road side unit，RSU)等。
在本申请实施例中，网络设备可以采用集中式单元(centralized unit，CU)-DU架构。也即，网络设备可以由CU和至少一个DU构成。这种情况下，网络设备的部分功能部署在CU上，网络设备的另一部分功能部署在DU上。CU和DU是按照协议栈进行功能切分。作为一种实现方式，CU部署有协议栈中的RRC层，分组数据汇聚层协议(packet data convergence protocol，PDCP)层，以及业务数据适应协议(service data adaptation protocol，SDAP)层；DU部署有协议栈中的无线链路控制(radio link control，RLC)层，媒体介入控制(media access control，MAC)层，以及物理层(physical layer，PHY)。从而，CU具有RRC、PDCP和SDAP的处理能力。DU具有RLC、MAC和PHY的处理能力。可以理解的是，上述功能的切分仅为一个示例，不构成对CU和DU的限定。也就是说，CU和DU之间还可以有其他功能切分的方式，本申请实施例在此不予赘述。
依据主节点和辅节点各自支持的通信制式，双连接网络可以有多种实现方式，下面举例说明。
如图1所示，为LTE-NR双连接(E-UTRA-NR Dual Connectivity，EN-DC)网络的示意图。EN-DC网络是4G无线接入网与5G NR的双连接，LTE基站(LTE eNB)作为MN，NR基站(NR gNB)作为SN。如图1中的(a)所示，LTE eNB与LTE系统的演进型分组核心网(evolved Packet Core，EPC)之间存在S1接口，至少有控制面连接，可以还有用户面连接。如图1中的(b)所示，NR gNB和EPC之间存在S1-U接口，即只可以有用户面连接。
如图2所示，为NR-LTE双连接(NR-E-UTRA Dual Connectivity，NE-DC)网络的示意图。NE-DC网络是5G核心网下的4G无线接入网与5G NR的双连接，NR基站(gNB)作为MN，LTE基站(ng-eNB)作为SN，且MN和SN都连接5G核心网(5th Generation Core Network，5GC)。如图2中的(a)所示，gNB与5GC之间存在NG接口，可以为终端建立控制面连接和用户面连接，ng-eNB通过gNB向5GC发送用户面数据。如图2中的(b)所示，ng-eNB与5GC之间存在NG-U接口，仅为终端建立用户面连接，ng-eNB直接向5GC发送用户面数据。
如图3所示，为5G核心网LTE-NR双连接(Next Generation E-UTRA-NR Dual Connectivity，NGEN-DC)网络的示意图。NGEN-DC网络是5G核心网下的4G无线接入网与5G NR的双连接，LTE基站(ng-eNB)作为MN，NR基站(gNB)作为SN，且MN和SN都连接5GC。如图3中的(a)所示，ng-eNB与5GC之间存在NG接口，可以为终端建立控制面连接和用户面连接，gNB通过ng-eNB向5GC发送用户面数据。如图3中的(b)所示，gNB与5GC之间存在NG-U接口，仅为终端建立用户面连接，gNB直接向5GC发送用户面数据。
在图1至图3的双连接网络中，SN和核心网之间也可以不建立用户面连接，而是经由MN传递数据，例如，在下行方向上，终端的数据先到达MN，MN在PDCP层将终端的数据分流给SN，其中分流的数据的形式例如为PDCP协议数据单元(Protocol Data Unit，PDU)。
2、EPS承载
当UE附着到LTE网络之后，在UE发起IMS注册流程及随后的IMS会话流程之前，还需要在LTE网络侧建立相应的EPS承载(bearer)。EPS承载用于传输IMS SIP信令消息和用户语音数据包。
一个EPS承载由演进的无线接入承载(evolved radio access bearer，E-RAB)和S5接口承载(S5bearer)组成。其中，E-RAB又由空中接口(Uu)的无线承载(radio bearer，RB)和S1接口承载(S1beaerer)组成。
其中，Uu接口的RB又可以分为信令无线承载(signaling radio bearer，SRB)和数据无线承载(data radio bearer，DRB)。
SRB可以分为以下3类：
(1)SRB0：建立在公共控制信道(common control channel，CCCH)上，用于传输RRC层信令消息。
(2)SRB1：建立在专用控制信道(dedicated control channel，DCCH)上，主要用于传输RRC层信令消息，还可以以内嵌方式与RRC层信令消息一起传输NAS层消息。
(3)SRB2：在安全模式完成以后，建立在DCCH上，以可靠安全方式专门传输NAS消息。
DRB用于承载用户面数据。根据QoS不同，UE与基站之间最多可以建立8个DRB。
3、QCI
QCI是系统用于标识业务数据包传输特性的参数。
示例性的，如表1所示，为QCI不同取值对应的含义。一个QCI主要包含以下信息：资源类型(resource type)、优先级(priority)、数据时延(packet delay budget)、以及数据丢包率(packet error loss rate)。
如表1所示，根据QCI的不同，可以将EPS承载划分为保证比特速率(guaranteed bit rate，GBR)类承载和Non-GBR类承载。
GBR是指即使在网络资源紧张的情况下，承载要求的比特速率也能够保持。因此，GBR类承载用于对实时性要求较高的业务。
Non-GBR是指在网络拥挤的情况下，承载需要承受降低比特速率的要求。Non-GBR类承载用于对实时性要求不高的业务。
表1
Figure PCTCN2020119050-appb-000001
Figure PCTCN2020119050-appb-000002
以上是对本申请实施例所涉及的术语的介绍，在此统一说明，以下不再赘述。
如图4所示，为本申请实施例提供的一种支持VOLTE语音业务的通信系统，该通信系统可以包括主叫终端、被叫终端、为主叫终端提供服务的接入网设备#1、为主叫终端提供服务的演进分组核心网(evolved packet core network，EPC)#1、网络互连协议多媒体子系统(internet protocol multimedia subsystem，IMS)、为被叫终端提供服务的接入网设备#2、以及为被叫终端提供服务的EPC#2。
其中，接入网设备(例如图4中的接入网设备#1和接入网设备#2)负责空中接口相关的所有功能，例如无线链路维护功能、无线资源管理功能等。示例性的，接入网设备可以为演进型基站(evolved Node B，eNodeB)。
EPC(例如图4中的EPC#1和EPC#2)是LTE的核心网，包括多个核心网网元，例如移动管理实体(mobility management entity，MME)、服务网关(serving gateway，S-GW)、公共数据网网关(public data network gateway，P-GW)。
IMS，用于负责VOLTE用户的注册、鉴权、控制、路由、交换以及媒体协商和转换等功能。IMS包括多个网元，例如呼叫会话控制功能(call session control function，CSCF)网元、归属用户服务器(home subscriber server，HSS)等。
下面结合图4所示的通信系统，介绍主叫终端与被叫终端之间的VOLTE业务流程。
如图5所示，VOLTE业务流程包括以下步骤：
S101、主叫终端向IMS发送请求(INVITE)消息。
其中，INVITE消息用于表示主叫终端向被叫终端发起语音会话。INVITE消息包括主叫终端的号码、主叫终端支持的媒体类型和编码等。
若主叫终端处于空闲态时，为了传输INVITE消息和VOLTE业务流程的后续消息，主叫终端会执行以下步骤S102-S105。
若主叫终端处于连接态，也即主叫终端已经与接入网设备#1建立RRC连接，从而主叫终端可以不用执行RRC流程。
应理解，下述步骤S102-S105均是可选的步骤。主叫终端可以根据自身的情况，选择执行下述步骤S102-S105中的一部分或者全部步骤。
S102、主叫终端与接入网设备#1之间执行服务请求(service request)流程。
S103、主叫终端与接入网设备#1之间执行RRC流程(procedure)。
作为一种可能的实现方式，接入网设备#1向主叫终端发送RRC连接建立(RRC connection setup)消息。之后，主叫终端向接入网设备#1发送RRC连接建立完成(RRC connection setup complete)消息。
S104、主叫终端与EPC#1之间执行安全流程(security procedure)。
作为一种可能的实现方式，EPC#1向主叫终端发送安全模式命令(security mode command)消息。之后，主叫终端向EPC#1发送安全模式完成(security mode complete)消息。
S105、主叫终端与接入网设备#1执行RRC连接重配置(reconfig)流程。该RRC连接重配置流程用于建立SRB2，以及恢复QCI＝5的EPS承载。
示例性的，主叫终端接收接入网设备#1发送的RRC连接重配置(RRC connection reconfiguration)消息。之后，主叫终端向接入网设备#1发送RRC连接重配置完成(RRC connection reconfiguration complete)消息。
可选的，在RRC连接重配置流程中，接入网设备#1可以多次向主叫终端发送RRC连接重配置消息。
S106、主叫终端接收IMS发送的INVITE 100(TRYING)消息。并且，IMS还会向EPC#2发送INVITE消息。
其中，INVITE100(TRYING)消息是对主叫终端发送的INVITE消息的临时响应。INVITE100(TRYING)消息用于表示主叫终端发送的INVITE消息正在处理中。
应理解，当被叫终端处于空闲态时，通信系统需要执行下述步骤S107-S111。或者，当被叫终端处于连接态时，被叫终端可以选择性地执行下述步骤S107-S111中的一部分步骤。
S107、EPC#2向处于空闲态的被叫终端发送寻呼(paging)消息。
S108、被叫终端与接入网设备#2之间执行service request流程。
S109、被叫终端与接入网设备#2之间执行RRC procedure。
作为一种可能的实现方式，接入网设备#2向被叫终端发送RRC connection setup消息。之后，被叫终端向接入网设备#2发送RRC connection setup complete消息。
S110、被叫终端与EPC#2之间执行security procedure。
作为一种可能的实现方式，EPC#2向被叫终端发送security mode command消息；之后，被叫终端向EPC#2发送security mode complete消息。
S111、被叫终端与接入网设备#2之间执行RRC连接重配置流程。
其中，该RRC连接重配置流程用于建立SRB2信令无线承载，以及恢复QCI＝5的EPS承载。
作为一种可能的实现方式，被叫终端接收接入网设备#2发送的RRC connection reconfiguration消息。之后，被叫终端向接入网设备#2发送RRC connection reconfiguration complete消息。
S112、被叫终端接收EPC#2发送的INVITE消息。
S113、被叫终端向IMS发送INVITE 100消息。
其中，INVITE 100消息用于表示被叫终端接收到EPC#2发送的INVITE消息。
S114、被叫终端向IMS发送INVITE 183消息。
其中，INVITE 183消息表示当前会话(dialog)正在处理，INVITE 183消息包括被叫终端支持的媒体类型和编码。
应理解，被叫终端通过发送INVITE 183消息，启动被叫终端的资源预留 (Precondition)流程。
S115、被叫终端与EPC#2之间执行EPS承载建立(EPS bear setup)流程。
其中，该EPS bear setup流程用于建立QCI＝1的专用EPS承载。
S116、主叫终端与EPC#1之间执行EPS bear setup流程。
其中，该EPS bear setup流程用于建立QCI＝1的专用EPS承载。
S117、主叫终端接收IMS发送的INVITE 183消息。
应理解，主叫终端接收到INVITE 183消息之后，启动主叫终端的资源预留流程。
S118、主叫终端向IMS发送临时响应确认(the provisional response ACK，PRACK)消息。
其中，PRACK消息用于表示主叫终端确认接收到INVITE 183消息。
S119、IMS向被叫终端发送PRACK消息。
S120、被叫终端向IMS发送PRACK 200消息。
其中，PRACK 200消息用于表示被叫终端确认接收到PRACK消息。
S121、IMS向主叫终端发送PRACK 200消息。
S122、主叫终端向IMS发送UPDATE消息。
其中，UPDATE消息用于表示主叫终端的资源预留过程已完成。
S123、IMS向被叫终端发送UPDATE消息。
S124、被叫终端向IMS发送UPDATE 200消息。
其中，UPDATE 200消息用于表示被叫终端的资源预留过程已完成。
S125、IMS向主叫终端发送UPDATE 200消息。
S126、被叫终端向IMS发送INVITE 180消息。
其中，INVITE 180消息用于表示被叫终端振铃。
S127、IMS向主叫终端发送INVITE 180消息。
应理解，主叫终端在接收到INVITE 180消息之后，开始振铃。
S128、被叫终端向IMS发送INVITE 200消息。
其中，INVITE 200消息用于表示被叫终端摘机。
S129、IMS向主叫终端发送INVITE 200消息。
S130、主叫终端向IMS发送确认(ACK)消息。
S131、IMS向被叫终端发送ACK消息。
在完成以上步骤之后，主叫终端和被叫终端之间可以进行通话过程。
S132、主叫终端向IMS发送再见(BYE)消息。
其中，BYE消息用于表示主叫终端挂机。
S133、IMS向被叫终端发送BYE消息。
S134、被叫终端向IMS发送BYE 200消息。
其中，BYE 200消息用于表示被叫终端挂机。
S135、IMS向主叫终端发送BYE 200消息。
S136、主叫终端与IMS之间执行去激活EPS承载上下文(deactivate EPS bearer context)流程。
其中，deactivate EPS bearer context流程用于去激活QCI＝1的专用EPS承载。
在deactivate EPS bearer context流程中，主叫终端释放QCI＝1的专用EPS承载对应的DRB。
应理解，QCI＝5的默认EPS承载在核心网侧(也即EPC#1)一直存在。在主叫终端进入连接态时，由EPC#1通知接入网设备#1为主叫终端进行配置QCI＝5的默认EPS承载对应的SRB和DRB。在主叫终端进入空闲态时，由EPC#1通过接入网设备#1指示主叫终端释放QCI＝5的默认EPS承载对应的SRB和DRB。
S137、被叫终端与IMS之间执行deactivate EPS bearer context流程。
以上是VOLTE业务流程的简单介绍，其具体细节可以参考现有技术，在此不再赘述。
当前，在5G部署的初期，为了节省成本，快速开展业务，一部分运营商选择非独立组网(NSA)模式。NSA采用的是EN-DC架构。
在采用EN-DC架构的场景下，如图6所示，NR SCG添加流程包括以下步骤：
S201、接入网设备向终端发送测量配置信息。
其中，该测量配置信息承载于RRC连接重配置消息中。示例性的，测量配置信息可以作为RRC连接重配置信息中的NR测量信元。
测量配置信息用于指示终端需要测量的NR频点信息。可选的，测量配置信息还可以包括NR小区列表。
测量配置信息还用于指示配置时间(time to trigger)的时长，以及测量报告上报要求。
应理解，在步骤S201之后，终端根据测量配置信息，对NR小区进行测量。若NR小区的测量结果在配置时间内满足测量报告上报要求，则终端可以执行下述步骤S202。
S202、终端向接入网设备发送测量报告(measurement report)。
S203、接入网设备向终端发送携带SCG配置信息的RRC连接重配置消息。
在终端接收到SCG配置信息之后，终端建立至少两个DRB承载。为了便于描述，两个DRB承载中的一个DRB承载简称为第一DRB承载，另一个DRB承载简称为第二DRB承载。
其中，第一DRB承载属于QCI＝5的EPS承载的一部分，用来承载IMS专用的信令。第一DRB和语音呼叫是否发起无关，只和RRC是否进入连接态有关。
第二DRB用来承载数据业务。
S204、终端向接入网设备发送RRC连接重配置完成(RRC connection reconfiguration complete)消息。
当前，图5所示的VoLTE业务流程和图6所示的NR SCG添加流程相互独立，两个流程存在同时进行的可能性。在外场测试中发现，当VoLTE业务流程和NR SCG添加建立流程同时进行时，在QCI＝1的专用EPS承载尚未建立之前，添加SCG容易导致QCI＝1的专用EPS承载的上下文丢失，从而导致QCI＝1的专用EPS承载建立失败，最后导致出现VOLTE语音掉话的现象。
其中，添加SCG容易导致QCI＝1的专用EPS承载的上下文丢失，具体是因为：终端建立QCI＝1的专用EPS承载对应的DRB，可能会与终端在添加SCG时建立的用 于承载数据业务的DRB发生冲突，导致终端未正确建立QCI＝1的专用EPS承载对应的DRB。
为了解决上述技术问题，本申请实施例提供一种测量报告上报方法。如图7所示，该方法包括以下步骤：
S301、终端传输INVITE消息。
其中，终端可以为VOLTE业务流程中的主叫终端或者被叫终端。
可选的，INVITE消息可以包含会话类型以及至少一个用于呼叫的参数。其中，会话类型可以包括：语音会话、多媒体视频会话等。示例性的，用于呼叫的参数可以为：主叫终端的号码、主叫终端支持的媒体类型和编码等。
可选的，当终端为主叫终端时，步骤S301可以具体实现为：终端发送INVITE消息。
可选的，当终端为被叫终端时，步骤S301可以具体实现为：终端接收INVITE消息。
S302、终端接收第一接入网设备发送的测量配置信息。
其中，第一接入网设备支持4G通信制式。第一接入网设备即为终端所接入的接入网设备。
在本申请实施例中，测量配置信息用于配置终端对NR小区进行测量。
示例性的，测量配置信息可以包括以下参数中的一个或多个：测量对象、小区列表、报告方式、测量标识、事件参数等。测量对象用于指示需要测量的无线接入类型(radio access type，RAT)，例如NR、EUTRA等。小区列表包括一个或多个小区标识。报告方式可以为周期性上报或者事件触发上报。事件参数可以包括事件的编号、门限值、配置时间等。
可选的，在终端在接收到测量配置信息之后，终端可以采取以下操作中的其中一种：
操作1、终端暂停对小区的测量，直至终端建立语音业务的无线承载。
其中，在LTE中，上述语音业务的无线承载是指QCI＝1的专用EPS承载对应的DRB。
应理解，基于操作1，终端可以不用执行测量操作，从而减少终端的功耗。
操作2、终端根据测量配置信息，对小区进行测量，并存储测量数据。
应理解，基于操作1，在终端允许发送测量报告的情况下，终端可以根据之前存储的测量数据，向第一接入网设备反馈测量报告，减少反馈测量报告的时延。
在本申请实施例中，为了避免NR SCG添加导致丢失语音业务的无线承载的上下文，当终端未建立语音业务的无线承载时，终端暂停发送测量报告；在终端建立语音业务的无线承载之后，终端才允许发送测量报告。
其中，终端建立语音业务的无线承载，包括以下步骤：终端接收来自于第一EPC的第一请求信息，第一请求信息用于请求建立语音业务的无线承载。终端根据第一请求信息，建立语音业务的无线承载的上下文。之后，终端向第一EPC发送第一指示信息，第一指示信息用于表示已建立语音业务的无线承载。其中，第一EPC是为终端提供服务的EPC。
示例性的，第一请求信息的传输过程为：第一EPC向第一接入网设备发送E-RAB建立请求(E-RAB SETUP REQUEST)，E-RAB SETUP REQUEST携带第一请求信息。之后，第一接入网设备根据E-RAB建立请求，向第一终端发送RRC连接重配置(RRC connection reconfiguration)消息，该RRC connection reconfiguration消息携带第一请求信息。
示例性的，第一指示信息的传输过程为：第一终端向第一接入网设备发送上行信息传递(UL information transfer)消息，上行信息传递消息携带第一指示信息。之后，第一接入网设备根据上行信息传递消息，向第一EPC发送上行非接入传输(UL NAS transport)消息携带第一指示信息。
可选的，第一请求信息可以有其他名称，例如激活专用EPS承载上下文请求消息(activate dedicated EPS bearer context request)。第一指示信息可以有其他名称，例如激活专用EPS承载上下文接受消息(activate dedicated EPS bearer context accept)。
应理解，终端未发送第一指示信息，说明终端还未完成语音业务的无线承载的建立，因此终端执行下述步骤S303。终端发送第一指示信息，说明终端完成语音业务的无线承载的建立，因此终端执行下述步骤S304。
S303、终端在发送第一指示信息之前，暂停发送测量报告。
一种可能的实现方式中，终端暂停发送测量报告，可以具体实现为：终端不进行小区测量，从而不生成相应的测量报告，因此终端无需发送测量报告。
另一种可能的实现方式中，终端暂停发送测量报告，可以具体实现为：终端进行小区测量，但是无论NR小区的测量结果是否满足测量报告上报要求，终端均默认NR小区的测量结果均不满足测量报告上报要求，因此终端不生成相应的测量报告，也无需发送测量报告。
S304、终端在发送第一指示信息之后，发送测量报告。
其中，测量报告包括：一个或多个NR小区的测量结果。示例性的，NR小区的测量结果可以为NR小区的参考信号接收功率(reference signal receiving power，RSRP)和/或参考信号接收质量(reference signal receiving quality，RSRQ)。
可选的，终端在发送第一指示信息之后进行小区测量。从而，当NR小区的测量结果满足测量报告上报要求时，终端生成相应的测量报告，并向第一接入网设备发送测量报告。
基于图7所示的实施例，在终端接收或发送INVITE消息之后，终端建立语音业务的无线承载之前，终端暂停发送测量报告，从而使得网络侧不会触发终端进行NR SCG的添加操作，从而避免NR SCG的添加操作与语音业务的无线承载的建立操作发生冲突。从而，本申请实施例用于降低语音业务的无线承载建立的失败率，提高VOLTE业务的成功率。
可选的，在图7所示实施例的基础上，如图8所示，该方法在步骤S304之后，还可以包括以下步骤：
S305、终端接收第一接入网设备发送的携带SCG配置信息的RRC连接重配置消息。
应理解，在第一接入网设备接收到终端发送的测量报告之后，第一接入网设备可 以根据测量报告，确定是否添加第二接入网设备作为终端的辅节点，第二接入网设备支持5G制式。在第一接入网设备确定添加第二接入网设备作为终端的辅节点的情况下，第一接入网设备可以向第二接入网设备发送辅节点添加请求(SgNB addition request)，该辅节点添加请求包括RRC配置信息、无线承载配置信息等。第二接入网设备向第一接入网设备发送辅节点添加请求确认(SgNB addition request acknowledge)消息。第一接入网设备根据辅节点添加请求确认消息，向终端发送携带SCG配置信息的RRC连接重配置消息。
其中，SCG配置信息包括待添加的SCG信息以及NR DRB资源配置信息。
在终端接收到RRC连接重配置消息之后，终端解析RRC连接重配置消息，获取SCG配置信息。之后，终端根据SCG配置信息，确定5G无线资源。从而，在后续步骤中，终端可以在5G无线资源上与第二接入网设备之间进行通信。
S306、终端向第一接入网设备发送RRC连接重配置完成消息。
这样一来，第一接入网设备根据RRC连接重配置完成消息，能够获知终端已根据之前发送的RRC连接重配置消息，完成了RRC连接重配置。因此，第一接入网设备可以向第二接入网设备发送辅节点重配置完成(SgNB Reconfiguration complete)消息。
之后，终端可以和第二接入网设备之间执行随机接入流程，以实现终端与第二接入网设备之间的同步。
基于图7所示的实施例，网络侧可以为终端添加SCG，以使得终端可以采用双连接方式进行通信，提高终端的数据传输速度。
下面结合具体应用场景来说明图7所示的实施例。
场景1、终端为主叫终端
如图9所示，为本申请实施例提供的一种测量报告上报方法，该方法包括以下步骤：S401-S412。其中，步骤S401-S404是处于空闲态的主叫终端需要执行的步骤，但不是处于连接态的主叫终端的必选步骤。
S401(可选的)、主叫终端与接入网设备之间执行服务请求流程。
S402(可选的)、主叫终端与接入网设备之间执行RRC流程
S403(可选的)、主叫终端与EPC之间执行安全流程。
S404(可选的)、主叫终端与接入网设备之间执行RRC连接重配置流程。
S405、主叫终端向IMS发送INVITE消息。
S406、主叫终端接收IMS发送的INVITE 100(Trying)消息。
S407、主叫终端与EPC之间执行EPS bear setup流程。
应理解，EPS bear setup流程用于建立语音业务的无线承载。
上述步骤S401-S407的具体实现可以参考现有技术，在此不予赘述。
在步骤S4010-S407的执行过程中，主叫终端可能执行下述步骤S408。这种情况下，为了避免影响VOLTE业务流程，主叫终端进一步执行下述步骤S409-S410。
S408、主叫终端接收到接入网设备发送的测量配置信息。
S409、主叫终端在发送第一指示信息之前，暂停发送测量报告。
可选的，步骤S409还可以被描述为：在完成EPS bear setup流程之前，主叫终端暂停发送测量报告。
S410、主叫终端在发送第一指示信息之后，发送测量报告。
可选的，步骤S410还可以被描述为：在完成EPS bear setup流程之后，主叫终端发送测量报告。
S411(可选的)、主叫终端接收接入网设备发送的携带SCG配置信息的RRC连接重配置消息。
S412(可选的)、主叫终端向第一接入网设备发送RRC连接重配置完成消息。
应理解，上述步骤S408-S412的具体实现可以参考图7和图8中的相关描述，在此不再赘述。
基于图9所示的实施例，当主叫终端在执行VOLTE业务流程时，主叫终端在建立语音业务的无线承载之前接收到测量配置信息，则在主叫终端发送第一指示信息之前，主叫终端暂停发送测量报告，以避免NR SCG的添加操作与语音业务的无线承载的建立操作发生冲突，从而降低语音业务的无线承载建立的失败率，提高VOLTE业务的成功率。
场景2、终端为被叫终端
如图10所示，为本申请实施例提供的一种测量报告上报方法，该方法包括以下步骤：S501-S514。其中，步骤S501-S505是处于空闲态的被叫终端需要执行的步骤，但不是处于连接态的被叫终端必选的步骤。
S501(可选的)、被叫终端接收到来自于EPC的寻呼消息。
S502(可选的)、被叫终端与接入网设备之间执行服务请求流程。
S503(可选的)、被叫终端与接入网设备之间执行RRC流程。
S504(可选的)、被叫终端与接入网设备之间执行安全流程。
S505(可选的)、被叫终端与接入网设备之间执行RRC连接重配置流程。
S506、被叫终端接收EPC发送的INVITE消息。
S507、被叫终端向IMS发送INVITE 100消息。
S508、被叫终端向IMS发送INVITE 183消息。
S509、被叫终端与EPC之间执行EPS bear setup流程。
其中，上述步骤S501-S509的具体实现可以参考现有技术，在此不予赘述。
在步骤S501-S509的执行过程中，被叫终端可能执行下述步骤S510。这种情况下，为了避免影响VOLTE业务流程，被叫终端进一步执行下述步骤S511-S512。
S510、被叫终端接收到接入网设备发送的测量配置信息。
S511、被叫终端在发送第一指示信息之前，暂停发送测量报告。
可选的，步骤S511还可以被描述为：在完成EPS bear setup流程之前，被叫终端暂停发送测量报告。
S512、被叫终端在发送第一指示信息之后，发送测量报告。
可选的，步骤S512还可以被描述为：在完成EPS bear setup流程之后，被叫终端发送测量报告。
S513(可选的)、被叫终端接收接入网设备发送的携带SCG配置信息的RRC连接重配置消息。
S514(可选的)、被叫终端向接入网设备发送RRC连接重配置完成消息。
应理解，上述步骤S510-S514的具体实现可以参考图7和图8中的相关描述，在此不再赘述。
基于图10所示的实施例，当被叫终端执行VOLTE业务流程时，被叫终端在建立语音业务的无线承载之前接收到测量配置信息，则在被叫终端发送第一指示信息之前，被叫终端暂停发送测量报告，以避免NR SCG的添加操作与语音业务的无线承载的建立操作发生冲突，从而降低语音业务的无线承载建立的失败率，提高VOLTE业务的成功率。
上述主要从终端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，终端为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。结合本申请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。本领域技术人员可以对每个特定的应用来使用不同的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实施例的技术方案的范围。
本申请实施例可以根据上述方法示例对通信装置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处理单元中。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。需要说明的是，本申请实施例中对单元的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。
如图11所示，为本申请实施例提供的一种通信装置，该通信装置包括处理模块101和通信模块102。
其中，处理模块101用于支持终端生成消息(例如测量报告)，以及解析消息(例如测量配置信息)等。通信模块102用于支持终端执行图7中的步骤S301-S304，图8中的步骤S305-S306，图9中的步骤S401-S412，图10中的步骤S501-S514。
可选，该通信装置还可以包括存储模块103，用于存储通信装置的程序代码和数据，数据可以包括不限于原始数据或者中间数据等。
其中，处理模块101可以是处理器或控制器，例如可以是CPU，通用处理器，DSP，ASIC，FPGA或者其他可编程逻辑器件、晶体管逻辑器件、硬件部件或者其任意组合。其可以实现或执行结合本申请公开内容所描述的各种示例性的逻辑方框，模块和电路。处理器也可以是实现计算功能的组合，例如包含一个或多个微处理器组合，DSP和微处理器的组合等等。
通信模块102可以是通信接口、收发器或收发电路等，其中，该通信接口是统称，在具体实现中，该通信接口可以包括多个接口，例如可以包括：基站和终端之间的接口和/或其他接口。
存储模块103可以是存储器。
当处理模块101为处理器，通信模块102为通信接口，存储模块103为存储器时，本申请实施例所涉及的通信装置可以为图12所示。
参阅图12所示，该通信装置包括：处理器201、通信接口202、存储器203。可选的，通信装置还可以包括总线204。其中，通信接口202、处理器201以及存储器 203可以通过总线204相互连接；总线204可以是外设部件互连标准(peripheral component interconnect，PCI)总线或扩展工业标准结构(extended industry standard architecture，EISA)总线等。所述总线204可以分为地址总线、数据总线、控制总线等。为便于表示，图12中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。
可选的，本申请实施例还提供一种携带计算机指令的计算机程序产品，当该计算机指令在计算机上运行时，使得计算机执行上述图7-图10中的方法。
可选的，本申请实施例还提供一种计算机可读存储介质，所述计算机可读存储介质存储计算机指令，当该计算机指令在计算机上运行时，使得计算机执行上述图7-图10中的方法。
可选的，本申请实施例还提供一种芯片，包括：处理电路和收发管脚，处理电路和收发管脚用于实现上述图7-图10中的方法。其中，处理电路用于执行相应方法中的处理动作，收发管脚用于执行相应方法中的接收/发送的动作。
本领域普通技术人员可以理解：在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(Digital Subscriber Line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包括一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，数字视频光盘(Digital Video Disc，DVD))、或者半导体介质(例如固态硬盘(Solid State Disk，SSD))等。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统，装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个设备上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个功能单元独立存在，也可以两个或两个以上单元集成在一个单元中。上述集成 的单元既可以采用硬件的形式实现，也可以采用硬件加软件功能单元的形式实现。
通过以上的实施方式的描述，所属领域的技术人员可以清楚地了解到本申请可借助软件加必需的通用硬件的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在可读取的存储介质中，如计算机的软盘，硬盘或光盘等，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述的方法。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，在本申请揭露的技术范围内的变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (22)

  1. 一种测量报告上报方法，其特征在于，所述方法包括：
    终端传输INVITE消息；
    所述终端接收测量配置信息；
    所述终端在发送第一指示信息之前，暂停发送测量报告，所述第一指示信息用于表示已建立语音业务的无线承载；
    所述终端在发送所述第一指示信息之后，发送所述测量报告。
  2. 根据权利要求1所述的方法，其特征在于，当所述终端为主叫终端时，所述终端传输INVITE消息，包括：
    所述终端发送所述INVITE消息。
  3. 根据权利要求1所述的方法，其特征在于，当所述终端为被叫终端时，所述终端传输INVITE消息，包括：
    所述终端接收所述INVITE消息。
  4. 根据权利要求1至3任一项所述的方法，其特征在于，所述终端接收测量配置信息，包括：
    所述终端接收接入网设备发送的携带测量配置信息的无线资源控制RRC连接重配置消息。
  5. 根据权利要求4任一项所述的方法，其特征在于，所述接入网设备支持4G通信制式，所述测量配置信息用于配置终端对新空口NR小区进行测量。
  6. 根据权利要求1至5任一项所述的方法，其特征在于，所述方法还包括：
    所述终端接收第一请求信息，所述第一请求信息用于请求建立所述语音业务的无线承载。
  7. 根据权利要求6所述的方法，其特征在于，所述第一请求信息为激活专用演进型分组核心网EPS承载上下文请求消息，所述第一指示信息为激活专用EPS承载上下文接受消息。
  8. 根据权利要求1至7所述的方法，其特征在于，所述语音业务的无线承载为服务质量等级标识QCI＝1的专用EPS承载对应的数据无线承载DRB。
  9. 根据权利要求1至8任一项所述的方法，其特征在于，所述方法还包括：
    所述终端接收接入网设备发送的携带NR辅小区组SCG配置信息的RRC连接重配置消息；
    所述终端向所述接入网设备发送RRC连接重配置完成消息。
  10. 一种通信装置，其特征在于，包括：通信模块和处理模块；
    所述通信模块，用于传输INVITE消息；接收测量配置信息；在发送第一指示信息之前，暂停发送测量报告，所述第一指示信息用于表示已建立语音业务的无线承载；
    所述处理模块，用于在发送第一指示信息之后，生成测量报告；
    所述通信模块，还用于在发送第一指示信息之后，发送所述处理模块生成的测量报告。
  11. 根据权利要求10所述的装置，其特征在于，当所述通信装置为主叫终端时，所述通信模块，具体用于发送所述INVITE消息。
  12. 根据权利要求10所述的装置，其特征在于，当所述通信装置为被叫终端时，所述装置具体用于接收所述INVITE消息。
  13. 根据权利要求10至12任一项所述的装置，其特征在于，所述通信模块，具体用于接收接入网设备发送的携带测量配置信息的无线资源控制RRC连接重配置消息。
  14. 根据权利要求13任一项所述的装置，其特征在于，所述接入网设备支持4G通信制式，所述测量配置信息用于配置终端对NR小区进行测量。
  15. 根据权利要求10至14任一项所述的装置，其特征在于，所述通信模块，还用于接收第一请求信息，所述第一请求信息用于请求建立所述语音业务的无线承载。
  16. 根据权利要求15所述的装置，其特征在于，所述第一请求信息为激活专用EPS承载上下文请求消息，所述第一指示信息为激活专用EPS承载上下文接受消息。
  17. 根据权利要求10至16所述的装置，其特征在于，所述语音业务的无线承载为QCI＝1的专用EPS承载对应的DRB。
  18. 根据权利要求10至17任一项所述的装置，其特征在于，所述通信模块，具体用于接收接入网设备发送的携带新空口NR辅小区组SCG配置信息的RRC连接重配置消息；向所述接入网设备发送RRC连接重配置完成消息。
  19. 一种通信装置，其特征在于，其特征在于，包括处理器和通信接口，所述处理器用于执行权利要求1至9中任一项所述的方法中的处理操作，所述通信接口用于执行权利要求1至9中任一项所述的方法中的通信操作。
  20. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质包括计算机指令，当所述计算机指令在计算机上运行时，使得计算机执行如权利要求1至9任一项所述的方法。
  21. 一种计算机程序产品，其特征在于，所述计算机程序产品包括计算机指令，当所述计算机程序产品在计算机上运行时，使得计算机执行如权利要求1至9任一项所述的方法。
  22. 一种芯片，其特征在于，所述芯片包括处理电路和收发管脚；所述处理电路用于执行权利要求1至9中任一项所述的方法中的处理操作，所述收发管脚用于执行权利要求1至9中任一项所述的方法中的通信操作。
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