WO2022110221A1 - 通信方法及相关设备 - Google Patents

通信方法及相关设备 Download PDF

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Publication number
WO2022110221A1
WO2022110221A1 PCT/CN2020/132947 CN2020132947W WO2022110221A1 WO 2022110221 A1 WO2022110221 A1 WO 2022110221A1 CN 2020132947 W CN2020132947 W CN 2020132947W WO 2022110221 A1 WO2022110221 A1 WO 2022110221A1
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WO
WIPO (PCT)
Prior art keywords
terminal
measurement
serving cell
event
network device
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Legal status (The legal status 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 status listed.)
Ceased
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PCT/CN2020/132947
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English (en)
French (fr)
Inventor
余国华
刘勇
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to EP20963109.2A priority Critical patent/EP4236592A4/en
Priority to PCT/CN2020/132947 priority patent/WO2022110221A1/zh
Priority to CN202080106499.8A priority patent/CN116406526B/zh
Publication of WO2022110221A1 publication Critical patent/WO2022110221A1/zh
Priority to US18/202,816 priority patent/US20230308977A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/30—Connection release
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H04W36/304—Reselection being triggered by specific parameters by measured or perceived connection quality data due to measured or perceived resources with higher communication quality
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0058—Transmission of hand-off measurement information, e.g. measurement reports
    • 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
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states

Definitions

  • the present application relates to the field of communication technologies, and in particular, to a communication method and related equipment.
  • 3GPP (3rd Generation Partnership Project, 3rd Generation Partnership Project) protocol stipulates that the network can initiate an RRC reconfiguration process to a terminal in a radio resource control (radio resource control, RRC) connected state (RRC_CONNECTED).
  • RRC radio resource control
  • the protocol stipulates that only after the AS security is activated, at least one data radio bearer (DRB) and signaling radio bearer 2 (signaling radio bearer2, SRB2) are established, and these When the radio bearer (RB) is not suspended, the master cell group (masterCellGroup) includes a synchronous reconfiguration information element (reconfigurationWithSync) that can be used for handover.
  • DRB data radio bearer
  • SRB2 signaling radio bearer 2
  • the master cell group includes a synchronous reconfiguration information element (reconfigurationWithSync) that can be used for handover.
  • the connection state of the terminal can be called single Signaling connection status.
  • the terminal will not be able to receive the synchronous reconfiguration information element (reconfigurationWithSync) for handover within this time window, so that the handover cannot be initiated, which will lead to the efficiency of non-access stratum (NAS) message delivery.
  • NAS non-access stratum
  • a current practice is to set and start a timer when the terminal enters the single signaling connection state. If the terminal does not detect the NAS message before the timer expires, the network device is directly triggered to release the terminal.
  • the duration of the timer is configured by operation, administration and maintenance (OAM) network elements, but this method has the problem that the duration of the timer is not easy to determine:
  • the terminal in the single-signaling connection state waits for a longer time to be released, that is, the terminal in the single-signaling connection is less likely to be released.
  • the terminal's NAS message delivery, service establishment, and service establishment delay cannot be guaranteed.
  • the waiting time for the terminal in the single signaling connection state to be released is shorter, that is, the terminal in the single signaling connection is easier to be released, which will lead to the need to establish a protocol data unit (Protocol Data Unit).
  • a terminal in a Unit, PDU) session will repeatedly try to access the network, and the terminal access delay will increase, which may cause signaling storms in extreme scenarios.
  • the terminal After the terminal is released, if there is a NAS message to be transmitted or a service to be established between the subsequent network and the terminal, the terminal needs to re-establish an RRC connection, which increases system overhead and increases service delay.
  • the present application provides a communication method and related equipment, which can reduce service damage caused by the terminal being unable to switch in time.
  • a first aspect of the present application provides a communication method, comprising:
  • the network device receives a measurement report (MR) from the terminal in the single signaling connection state, and determines whether to release the radio resource control (radio resource control) with the terminal in the single signaling connection state according to the measurement report. control, RRC) connection.
  • MR measurement report
  • RRC radio resource control
  • the radio bearer RB between the terminal in the single signaling connection state and the network device has and only has signaling radio bearer 0 (SRB0) and signaling radio bearer (SRB1).
  • the terminal in the single signaling connection state is released at an appropriate time, which can not only make the terminal that cannot continue to receive the service of the current serving cell be released in time, reduce the service damage caused by the inability to switch in time, but also ensure that the The terminal that normally accepts the service of the current serving cell is not released in advance, which reduces the system overhead and increases the access delay.
  • the network device further includes sending, by the network device, a measurement configuration to the terminal, where the measurement configuration includes: a measurement object and a reporting condition.
  • the network device may send the measurement configuration to the terminal through RRC signaling.
  • the measurement configuration includes measurement objects and reporting conditions configured by the network device for the terminal.
  • the measurement object is used to indicate the measurement to be performed by the terminal
  • the reporting condition is used to indicate the mechanism by which the terminal reports the measurement result.
  • the measurement object includes at least one of the following:
  • the serving cell that the terminal is currently connected to and at least one neighboring cell of the serving cell that is currently connected.
  • the network device sets the measurement object of the terminal according to the measurement needs. After the terminal receives the measurement object, it can perform measurement on the measurement object. It can measure the serving cell that the terminal is currently connected to, and it can also measure the current serving cell. Measurements are performed on multiple adjacent cells to meet the requirement of reconnecting after releasing the radio resource control connection in the subsequent steps.
  • the reporting condition includes at least one of the following: a measurement event, and a reporting period.
  • the terminal After the terminal obtains the measurement result, if the reporting conditions are met, the terminal sends the measurement result to the network device.
  • the periodic reporting method means that the network device configures a reporting period for the terminal, and when the reporting period is reached, the terminal can trigger the reporting;
  • the event-triggered reporting method means that the network equipment configures a measurement event for the terminal, if the measurement result of the terminal satisfies the According to the requirements of the measurement event, the terminal can trigger the report.
  • the terminal may report the measurement result through a measurement report (measurement report, MR).
  • the measurement event includes at least one of the following:
  • A2 event the signal quality of the serving cell is lower than the absolute threshold
  • Event A3 The signal quality of the adjacent cell is higher than the serving cell by an offset value
  • Event A4 The signal quality of neighboring cells is higher than the absolute threshold
  • Event A5 the signal quality of the serving cell is lower than the first absolute threshold, and the signal quality of the neighboring cell is higher than the second absolute threshold;
  • Event B1 The signal quality of neighboring cells is higher than the absolute threshold
  • Event B2 The signal quality of the serving cell is lower than the first absolute threshold, and the signal quality of the neighbor cell is higher than the second absolute threshold.
  • the signal quality of the serving cell or the neighboring cell may refer to the reference signal measurement value of the currently connected serving cell or the neighboring cell.
  • the measured values of the reference signal include reference signal received power (RSRP), reference signal received quality (RSRQ), signal to interference plus noise ratio (signal to interference plus noise ratio, SINR), or received signal strength indicator (RSSI).
  • the reference signal of the serving cell or the neighboring cell may include a synchronization signal and a physical broadcast channel block (synchronization signal and physical broadcast channel block, SSB) or a channel state information reference signal (channel state information reference signal, CSI-RS) .
  • the reference signal of the terminal may include a channel sounding reference signal (sounding reference signal, SRS).
  • intra-system measurement events including intra-frequency and inter-frequency
  • A1 event the signal quality of the serving cell is higher than the absolute threshold
  • A2 event the signal quality of the serving cell is lower than the absolute threshold
  • A3 event the adjacent cell The signal quality is higher than the serving cell by an offset value
  • event A4 the signal quality of the neighboring cell is higher than the absolute threshold
  • event A5 the signal quality of the serving cell is lower than the first absolute threshold, and the signal quality of the neighboring cell is higher than the second absolute threshold
  • Inter-system measurement event event B1: signal quality of neighboring cells is higher than the absolute threshold
  • event B2 signal quality of serving cell is lower than the first absolute threshold, and signal quality of neighboring cells is higher than the second absolute threshold.
  • the network device can select the above measurement events for configuration, wherein, events A2 to B2 in the measurement events can be configured in this method to trigger reporting conditions.
  • the measurement report includes at least one measurement event.
  • the measurement report reported at this time includes the measurement events satisfied by the measurement result of the terminal.
  • the network device may determine to release the radio resource control connection with the terminal according to the measurement report.
  • the measurement report includes a reference signal measurement value of at least one serving cell or a neighboring cell.
  • the measurement report reported at this time includes the measurement result of the terminal on at least one currently connected serving cell or neighboring cell.
  • the network device may determine whether to release the radio resource control connection with the terminal according to the measurement report. For example, if the network device determines that the reference signal measurement value of the serving cell included in the measurement report is lower than an absolute threshold, or the reference signal measurement value of the adjacent cell is higher than an absolute threshold, or the reference signal measurement value of the adjacent cell is higher than an absolute threshold When the reference signal measurement value of the current serving cell is higher than an offset value, it is determined to release the radio resource control connection with the terminal.
  • the method before executing the release, the method further includes:
  • connection state of the terminal is detected, and the release is performed when it is determined that the terminal is in a single signaling connection.
  • the network device determines to release the radio resource control connection with the terminal according to the measurement report, it re-detects the connection state of the terminal. When it is determined that the terminal is in the single-signaling connection state, the release is performed again, so as to avoid being in a non-single-signal connection state. The problem that the terminal in the connected state is released by mistake, resulting in the loss of service data.
  • an eighth possible implementation manner of the communication method it further includes:
  • the terminal After the release is completed, the terminal is made to send a connection establishment request to a neighboring cell whose signal quality is better than that of the serving cell connected before release.
  • the network device may carry an identifier of a neighboring cell whose signal quality is better than that of the serving cell.
  • the terminal is made to initiate a connection establishment request to a neighboring cell with better signal quality, so as to realize the reconnection of the serving cell.
  • a communication method comprising:
  • the network device receives the reference signal sent by the terminal in the single signaling connection state, and determines the channel quality between the terminal in the single signaling connection state and the network device according to the measurement value of the reference signal.
  • the network device determines whether to release a radio resource control (radio resource control, RRC) connection with the terminal according to the channel quality.
  • RRC radio resource control
  • the radio bearer RB between the terminal in the single signaling connection state and the network device has and only has signaling radio bearer 0 (SRB0) and signaling radio bearer (SRB1).
  • the reference signal of the terminal may include a channel sounding reference signal (SRS), and the network device evaluates the channel quality through the received channel sounding reference signal, and determines whether to release or be in single signaling according to the channel quality.
  • SRS channel sounding reference signal
  • the terminal in the single signaling connection state is released at an appropriate time, which can not only ensure that the terminal that cannot continue to receive the service of the current serving cell is released in time, reduce the service damage caused by the inability to switch in time, but also ensure that the terminal can be The terminal that normally accepts the service of the current serving cell is not released in advance, which reduces the system overhead and increases the access delay.
  • a communication device comprising:
  • At least one memory is connected to the bus and stores program instructions which, when executed by the at least one processor, cause the at least one processor to perform the method described in any one of the communication methods.
  • a fourth aspect of the present application provides a computer-readable storage medium having program instructions stored thereon, and when executed by a computer, the program instructions cause the computer to execute the method described in any one of the communication methods.
  • a fifth aspect of the present application provides a computer program product, which includes program instructions, which when executed by a computer cause the computer to execute the method described in any one of the communication methods.
  • a sixth aspect of the present application provides a communication device, which is used to execute the method described in any one of the communication methods.
  • FIG. 1 shows a flowchart of a communication method provided by an embodiment of the present application
  • FIG. 2 shows a flowchart of another communication method provided by an embodiment of the present application
  • FIG. 3 shows a schematic diagram of interactive signaling between a terminal, a network device, and an AMF provided by an embodiment of the present application
  • FIG. 4 shows an architecture diagram of a network device provided by an embodiment of the present application
  • FIG. 5 shows an architecture diagram of another network device provided by an embodiment of the present application.
  • FIG. 6 shows an architecture diagram of a communication device provided by an embodiment of the present application.
  • Network device 400 configuration unit 401; communication unit 402; release unit 403; network device 500; configuration unit 501; communication unit 502; detection unit 503; release unit 504; ; bus 1040.
  • 3GPP 3rd Generation Partnership Project
  • 3rd Generation Partnership Project 3rd Generation Partnership Project
  • Terminal in this application, refers to the collective name of various terminal devices that can communicate with network base stations in a mobile communication network, which can be mobile phones, tablet computers (Tablet Personal Computer), laptop computers (Laptop Computer), personal digital assistants Terminal equipment such as (Personal Digital Assistant, PDA), mobile Internet Device (Mobile Internet Device, MID), wearable device (Wearable Device), or vehicle-mounted equipment, the specific types of terminals are not limited in the embodiments of the present application.
  • gNB 5G base station
  • eNB 4G base station.
  • AMF Access and Mobility Management Function
  • access and mobility management function is responsible for user mobility and access management.
  • RRC Radio Resource Control
  • Radio Resource Control also known as Radio Resource Management (RRM) or Radio Resource Allocation (RRA)
  • RRM Radio Resource Management
  • RRA Radio Resource Allocation
  • AS Access Stratum
  • AS Access Stratum
  • NAS Access Stratum
  • AS Access Stratum
  • Non-access stratum exists in the wireless communication protocol stack of UMTS as a functional layer between the core network and the terminal. This layer supports signaling and data transfer between the two.
  • PDU Protocol Data Unit
  • OSI Open Systems Interconnection
  • Radio Bearer radio bearer
  • DRB Data Radio Bearer
  • SRB Signaling Bearer
  • SRB is only used to transmit RRC and NAS messages.
  • the transmission channel of SRBs is defined:
  • SRB0 is used to transmit RRC messages, which are transmitted on the logical channel CCCH;
  • SRB1 is used to transmit RRC messages (possibly including piggybacked NAS messages), and has a higher priority than SRB2 before the bearer of SRB2 is established. transmitted on the logical channel DCCH;
  • SRB2 is used to transmit NAS messages, which has a lower priority than SRB1, and is always configured after the security mode is activated, and transmitted on the logical channel DCCH;
  • DRB is used to carry user plane data.
  • OAM operation, administration and maintenance
  • OAM refers to that according to the actual needs of the operator's network operation, the network management work is usually divided into three categories: Operation, Administration, Maintenance, Referred to as OAM.
  • Operation mainly completes the analysis, prediction, planning, and configuration of the daily network and services;
  • maintenance is mainly the daily operation activities such as testing and fault management of the network and its services.
  • RSRQ reference signal received quality
  • reference signal received quality reference signal received quality
  • SINR signal to interference plus noise ratio
  • signal to interference plus noise ratio signal to interference plus noise ratio
  • RSSI received signal strength indicator
  • signal strength indicator
  • SSB synchronization signal and physical broadcast channel block
  • synchronization signal and physical broadcast channel block synchronization signal and physical broadcast channel block
  • CSI-RS channel state information reference signal
  • channel state information reference signal channel state information reference signal
  • SRS sounding reference signal
  • channel sounding reference signal channel sounding reference signal
  • PDCCH Physical Downlink Control Channel
  • downlink physical layer control channel downlink physical layer control channel
  • DCI Downlink Control Information
  • downlink control signaling downlink control signaling
  • Event A1 The signal quality of the serving cell is higher than the absolute threshold
  • A2 event the signal quality of the serving cell is lower than the absolute threshold
  • Event A3 The signal quality of the adjacent cell is higher than the serving cell by an offset value
  • Event A4 The signal quality of neighboring cells is higher than the absolute threshold
  • Event A5 the signal quality of the serving cell is lower than the first absolute threshold, and the signal quality of the neighboring cell is higher than the second absolute threshold;
  • Event B1 The signal quality of neighboring cells is higher than the absolute threshold
  • Event B2 The signal quality of the serving cell is lower than the first absolute threshold, and the signal quality of the neighbor cell is higher than the second absolute threshold.
  • connection state of the terminal may be called a single signaling connection state.
  • the terminal in the single-signaling connection state waits for a longer time to be released, that is, the terminal in the single-signaling connection is less likely to be released.
  • the terminal's NAS message delivery, service establishment, and service establishment delay cannot be guaranteed.
  • the waiting time for the terminal in the single signaling connection state to be released is shorter, that is, the terminal with the single signaling connection is easier to be released, which will cause the terminal that needs to establish a PDU session to repeatedly
  • the terminal access delay increases, which may cause signaling storms in extreme scenarios.
  • the terminal After the terminal is released, if there is a NAS message to be transmitted or a service to be established between the subsequent network and the terminal, the terminal needs to re-establish a radio resource control connection, which increases system overhead and increases service delay.
  • the embodiments of the present application provide a communication method and related equipment.
  • the terminal connected with a single signaling connection can be used at an appropriate time. is released, which can reduce the service damage caused by the terminal being unable to switch in time.
  • the application is described in detail below.
  • an embodiment of the present application provides a communication method, and the method includes:
  • S101 The network device receives the measurement report sent by the terminal.
  • the terminal may be in a single signaling connection state.
  • the RB between the terminal in the single signaling connection state and the network device may have and only have signaling SRB0 and SRB1.
  • a terminal in a single signaling connection state refers to a terminal that has not yet established a PDU session. Or, after the terminal accesses the cell, until the core network instructs the terminal to establish a PDU session, the state of the terminal is a single signaling connection state.
  • the network device may send the measurement configuration to the terminal.
  • the measurement configuration includes a measurement object and a reporting condition, where the measurement object is used to indicate a measurement object to be measured by the terminal, and the reporting condition is used to indicate which mechanism the terminal uses to report the measurement result.
  • a measurement object of the terminal may be set, wherein the measurement object may be set to at least include: the serving cell that the terminal is currently connected to, or at least one neighboring cell of the current serving cell.
  • the terminal receives the measurement object, according to the set measurement object, it can not only measure the serving cell that the terminal is currently connected to, but also measure multiple adjacent cells of the current serving cell, so as to meet the requirements of releasing radio resources in subsequent steps. Controls the need to connect and then connect.
  • the reporting conditions of the terminal may be set, wherein the reporting conditions may be set to at least include: a measurement event or a reporting period.
  • the terminal performs the corresponding measurement according to the above set measurement object, and after obtaining the measurement result, according to the set reporting condition, it can realize event-triggered reporting, or periodic reporting.
  • the periodic reporting method means that the network device configures a reporting period for the terminal, and when the reporting period is reached, the terminal can trigger the reporting;
  • the event-triggered reporting method means that the network equipment configures a measurement event for the terminal, if the measurement result of the terminal satisfies the According to the requirements of the measurement event, the terminal can trigger the report.
  • the above measurement event may include at least one of the following:
  • A2 event the signal quality of the serving cell is lower than the absolute threshold
  • Event A3 The signal quality of the adjacent cell is higher than the serving cell by an offset value
  • Event A4 The signal quality of neighboring cells is higher than the absolute threshold
  • Event A5 the signal quality of the serving cell is lower than the first absolute threshold, and the signal quality of the neighboring cell is higher than the second absolute threshold;
  • Event B1 The signal quality of neighboring cells is higher than the absolute threshold
  • Event B2 The signal quality of the serving cell is lower than the first absolute threshold, and the signal quality of the neighbor cell is higher than the second absolute threshold.
  • the above-mentioned signal quality of the serving cell or the neighboring cell may refer to the reference signal measurement value of the serving cell or the neighboring cell.
  • the measured values of the reference signal include reference signal received power (RSRP), reference signal received quality (RSRQ), signal to interference plus noise ratio (signal to interference plus noise ratio, SINR), or received signal strength indicator (RSSI).
  • the reference signal of the serving cell or the neighboring cell may include a synchronization signal and a physical broadcast channel block (synchronization signal and physical broadcast channel block, SSB) or a channel state information reference signal (channel state information reference signal, CSI-RS) .
  • the reference signal of the terminal may include a channel sounding reference signal (sounding reference signal, SRS).
  • the terminal performs the measurement of the measurement object according to the set measurement object, and after obtaining the measurement result, and when the measurement result satisfies the above set reporting conditions, it can report the measurement result to the network device through the measurement report.
  • S102 The network device determines whether to release the communication connection with the terminal according to the measurement report.
  • the communication connection may be an RRC connection.
  • the measurement report sent by the terminal received by the network device includes event-triggered reporting or periodic reporting.
  • the reporting type of the measurement report is event-triggered reporting
  • the measurement report reported at this time includes at least one of the measurement events set above, and the network device can determine to release the radio resources with the terminal according to the measurement report. Control connection.
  • the reporting type of the measurement report is periodic-triggered reporting
  • the measurement report reported at this time includes the measurement result of the terminal on at least one currently connected serving cell or neighboring cell. The network device may determine whether to release the radio resource control connection with the terminal according to the measurement report.
  • the network device determines that the reference signal measurement value of the serving cell included in the measurement report is lower than an absolute threshold, or the reference signal measurement value of the adjacent cell is higher than an absolute threshold, or the reference signal measurement value of the adjacent cell is higher than an absolute threshold
  • the reference signal measurement value of the current serving cell is higher than an offset value
  • the network device may also detect the connection state of the terminal, and perform the release when it is determined that the terminal is in a single signaling connection. In order to avoid the problem that the terminal in the non-single signaling connection state is accidentally released, resulting in the loss of service data.
  • the network device may further enable the terminal to send a connection establishment request to a neighboring cell whose signal quality is better than that of the serving cell connected before release.
  • the measurement report sent by the terminal includes the signal quality of the serving cell of the currently connected serving cell and the signal quality of at least one adjacent cell, it is assumed that the signal quality of the adjacent cell is better than the serving cell to which the terminal is currently connected.
  • the network device determines to release the radio resource control connection with the terminal according to the measurement report.
  • the release message sent by the network device to the terminal may also carry an identifier of a neighboring cell whose signal quality is better than that of the current serving cell. The terminal can initiate a request to establish a connection to the adjacent cell according to the identification of the adjacent cell, thereby realizing the reconnection of the serving cell.
  • FIG. 2 is a flowchart of another communication method provided by an embodiment of the present application, and the method includes:
  • the network device receives the reference signal sent by the terminal, and determines the channel quality between the terminal and the network device according to the measured value of the reference signal.
  • the terminal may be in a single signaling connection state.
  • the reference signal of the terminal may include a channel sounding reference signal (sounding reference signal, SRS).
  • the network device configures SRS configuration information for the terminal, and sends downlink control signaling (Downlink Control Information, DCI) to the terminal through a downlink physical layer control channel (Physical Downlink Control Channel, PDCCH), where the SRS configuration information may include configuration for the terminal.
  • DCI Downlink Control Information
  • PDCCH Physical Downlink Control Channel
  • the form of reporting SRS which may specifically include periodic reporting signaling or triggering reporting signaling.
  • the terminal performs periodic reporting or triggering reporting of SRS according to the SRS configuration information carried in the received downlink control signaling.
  • the network equipment According to the received SRS, the channel quality between the terminal in the single signaling connection state and the network device is evaluated.
  • S202 The network device determines whether to release the radio resource control connection with the terminal according to the channel quality.
  • the network device determines whether to release the radio resource control connection with the terminal in the single signaling connection state according to the channel quality evaluated above. For example, when the channel quality is lower than a set absolute threshold, it may It is determined that the terminal in the single-signaling connection state can no longer continue to enjoy the communication service of the current network device or serving cell, and then it is determined to release the radio resource control connection with the terminal in the single-signaling connection state, thereby reducing the possibility of the terminal being unable to switch in time. Business is damaged.
  • the present application also provides an embodiment, which specifically introduces the signaling interaction process between the terminal, the network device and the AMF in the present application, and the process includes:
  • RRC Configuration Request RRC Setup Request
  • the network device receives the RRC configuration request signaling, and if the terminal is allowed, sends downlink control signaling to the terminal, where the downlink control signaling includes RRC configuration information (RRC Setup (SRB1));
  • the terminal completes the RRC connection with the network device according to the RRC configuration information (RRC Setup (SRB1)) included in the received downlink control signaling, and sends the RRC connection completion signaling (RRC Setup Complete) to the network device;
  • RRC Configuration information RRC Setup (SRB1)
  • RRC Setup Complete RRC Connection completion signaling
  • the terminal After the RRC connection is completed, the terminal enters the RRC connection mode, and then executes:
  • the network device sends a request signaling (Initial UE Message) to initialize the terminal to the AMF (Access and Mobility Management Function), requesting to establish a context for the terminal;
  • a request signaling Initial UE Message
  • AMF Access and Mobility Management Function
  • AMF receives the request to establish the context, and sends the control signaling (Initial Context Setup Request) containing the initialized context information to the network device;
  • the network device establishes a context for the terminal according to the received initialization context information, and sends a signaling of an initial context setup response (Initial Context Setup Response) to the AMF;
  • the network device completes the establishment of the RRC connection and context with the terminal, but does not establish the PDU session bearer, the terminal is in the state of single signaling connection, and then executes:
  • the network device sends configuration information (RRC Connection Reconfiguration) to the terminal;
  • the configuration information configured by the network device for the terminal may include two implementation manners, specifically:
  • the configuration information includes at least a measurement object that needs to be performed by the terminal or a reporting condition, where the measurement object is used to indicate a measurement object to be measured by the terminal, and the reporting condition is used to indicate which mechanism the terminal uses to report measurement results.
  • the measurement object may be set to at least include: a serving cell to which the terminal is currently connected, or at least one neighboring cell of the current serving cell.
  • the terminal After the terminal receives the measurement object, according to the set measurement object, it can not only measure the serving cell currently connected to the terminal, but also measure multiple adjacent cells of the current serving cell, and send the measurement result to the network device. In order to meet the requirement of reconnecting after releasing the RRC connection in the subsequent steps.
  • the reporting condition may be set to at least include: a measurement event, or a reporting period.
  • the terminal performs the corresponding measurement according to the above set measurement object, and after obtaining the measurement result, according to the set reporting condition, it can realize event-triggered reporting, or periodic reporting.
  • the periodic reporting method means that the network device configures a reporting period for the terminal, and when the reporting period is reached, the terminal can trigger the reporting;
  • the event-triggered reporting method means that the network equipment configures a measurement event for the terminal, if the measurement result of the terminal satisfies the According to the requirements of the measurement event, the terminal can trigger the report.
  • the above measurement event may be set to include one or more of the following:
  • A2 event the signal quality of the serving cell is lower than the absolute threshold
  • Event A3 The signal quality of the adjacent cell is higher than the serving cell by an offset value
  • Event A4 The signal quality of neighboring cells is higher than the absolute threshold
  • Event A5 the signal quality of the serving cell is lower than the first absolute threshold, and the signal quality of the neighboring cell is higher than the second absolute threshold;
  • Event B1 The signal quality of neighboring cells is higher than the absolute threshold
  • Event B2 The signal quality of the serving cell is lower than the first absolute threshold, and the signal quality of the neighbor cell is higher than the second absolute threshold.
  • the above-mentioned signal quality of the serving cell or the neighboring cell may refer to the reference signal measurement value of the serving cell or the neighboring cell.
  • the measured values of the reference signal include reference signal received power (RSRP), reference signal received quality (RSRQ), signal to interference plus noise ratio (signal to interference plus noise ratio) , SINR), or received signal strength indicator (RSSI).
  • the reference signal of the serving cell or the neighboring cell may include a synchronization signal and a physical broadcast channel block (synchronization signal and physical broadcast channel block, SSB) or a channel state information reference signal (channel state information reference signal, CSI-RS) ).
  • the configuration information may be set to include SRS configuration information configured by the network device for the terminal, wherein the SRS configuration information may include the form of reporting SRS configured for the terminal, and may specifically include periodic reporting or triggering
  • the terminal performs periodic reporting or trigger reporting of the SRS according to the SRS configuration information, and the network device evaluates the channel quality between the terminal in the single signaling connection state and the network device according to the received SRS.
  • the terminal sends a configuration complete signaling (RRC Connection Reconfiguration Complete) to the network device, and performs corresponding measurement or sending according to the above configuration information;
  • the terminal sends a measurement report (Measurement Report) to the network device;
  • the terminal also includes two corresponding measurement execution manners and measurement report sending manners. Specifically,
  • the terminal When the above configuration information includes the measurement object or the reporting condition in the first implementation manner, the terminal performs measurement of the measurement object according to the configuration information, and sends the measurement result to the network device in the form of a measurement report, wherein the network The device can judge the channel quality between the terminal and the current serving cell or neighboring cells according to the received measurement report.
  • the terminal performs periodic reporting or trigger reporting of the SRS according to the SRS configuration information, and the network device needs to further detect the received SRS to determine Channel quality between the terminal and the currently connected serving cell.
  • the network device releases the RRC connection (RRC Release) with the terminal according to the received measurement report;
  • the network device determines whether to release the RRC connection with the terminal according to the received measurement report
  • the measurement report reported at this time includes at least one measurement event set above, and the network device can determine the release and The RRC connection between the terminals; when the reporting type of the measurement report is periodic trigger reporting, the measurement report reported at this time includes the measurement results of the terminal on at least one currently connected serving cell or neighboring cell. The network device may determine whether to release the radio resource control connection with the terminal according to the measurement report.
  • the network device determines that the reference signal measurement value of the serving cell included in the measurement report is lower than an absolute threshold, or the reference signal measurement value of the adjacent cell is higher than an absolute threshold, or the reference signal measurement value of the adjacent cell is higher than an absolute threshold
  • the reference signal measurement value of the current serving cell is higher than an offset value
  • the network device when the measurement report sent by the terminal to the network device only includes the SRS, the network device needs to evaluate the channel quality between the terminal in the single signaling connection state and the network device according to the SRS. , and according to the evaluated channel quality, determine whether to release the RRC connection with the terminal in the single signaling connection state, for example, when the channel quality is lower than a set absolute threshold, it can be determined that the If the terminal can no longer continue to enjoy the communication service of the current network device or the serving cell, it is determined to release the RRC connection with the terminal in the single signaling connection state.
  • the network device 400 includes:
  • a configuration unit 401 configured to configure a measurement configuration, where the measurement configuration includes: a measurement object and a reporting condition;
  • the measurement object is used to indicate a measurement object to be measured by the terminal, and the reporting condition is used to indicate which mechanism the terminal uses to report the measurement result.
  • the measurement object may be set to at least include: the serving cell that the terminal is currently connected to, or at least one neighboring cell of the current serving cell. After the terminal receives the measurement object, according to the set measurement object, it can not only measure the serving cell currently connected to the terminal, but also measure multiple adjacent cells of the current serving cell, so as to meet the requirements of releasing radio resources in subsequent steps. Controls the need to connect and then connect.
  • the reporting condition may be set to at least include: measurement event, or reporting period.
  • the terminal performs the corresponding measurement according to the above set measurement object, and after obtaining the measurement result, according to the set reporting condition, it can realize event-triggered reporting, or periodic reporting.
  • the periodic reporting method means that the configuration unit 401 configures a reporting period for the terminal, and when the reporting period is reached, the terminal can trigger the reporting;
  • the event-triggered reporting method means that the configuration unit 401 configures a measurement event for the terminal. If the result meets the requirements of the measurement event, the terminal can trigger the reporting.
  • the above measurement event may include at least one of the following:
  • A2 event the signal quality of the serving cell is lower than the absolute threshold
  • Event A3 The signal quality of the adjacent cell is higher than the serving cell by an offset value
  • Event A4 The signal quality of neighboring cells is higher than the absolute threshold
  • Event A5 the signal quality of the serving cell is lower than the first absolute threshold, and the signal quality of the neighboring cell is higher than the second absolute threshold;
  • Event B1 The signal quality of neighboring cells is higher than the absolute threshold
  • Event B2 The signal quality of the serving cell is lower than the first absolute threshold, and the signal quality of the neighbor cell is higher than the second absolute threshold.
  • the above-mentioned signal quality of the serving cell or the neighboring cell may refer to the reference signal measurement value of the serving cell or the neighboring cell.
  • the measured values of the reference signal include reference signal received power (RSRP), reference signal received quality (RSRQ), signal to interference plus noise ratio (signal to interference plus noise ratio, SINR), or received signal strength indicator (RSSI).
  • the reference signal of the serving cell or the neighboring cell may include a synchronization signal and a physical broadcast channel block (synchronization signal and physical broadcast channel block, SSB) or a channel state information reference signal (channel state information reference signal, CSI-RS) .
  • the reference signal of the terminal may include a channel sounding reference signal (sounding reference signal, SRS).
  • a communication unit 402 configured to send the measurement configuration to the terminal, and receive a measurement report sent by the terminal;
  • the measurement report received by the communication unit 402 from the terminal includes event-triggered reporting or periodic reporting.
  • the reporting type of the measurement report is event-triggered reporting
  • the measurement report reported at this time includes at least A measurement event set above
  • the reporting type of the measurement report is periodic trigger reporting the measurement report reported at this time includes the measurement result of the terminal on at least one currently connected serving cell or neighboring cell.
  • the releasing unit 403 is configured to determine whether to release the radio resource control connection with the terminal according to the measurement report.
  • the release unit 403 may release the radio resource control connection with the terminal.
  • the measurement report includes the reference signal measurement value of the terminal for at least one currently connected serving cell or neighboring cell
  • it is assumed that the reference signal measurement value of the serving cell included in the measurement report is lower than an absolute threshold, or a relative
  • the reference signal measurement value of the neighbor cell is higher than an absolute threshold, or the reference signal measurement value of the neighbor cell is higher than the reference signal measurement value of the current serving cell by an offset value, it is determined to release the radio resource control with the terminal connect.
  • the connection state of the terminal may also be detected, and when it is determined that the terminal is in a single signaling connection, the release is performed.
  • the terminal may also be made to send a connection establishment request to a neighboring cell whose signal quality is better than that of the serving cell connected before release.
  • the measurement report sent by the terminal includes the signal quality of the serving cell of the currently connected serving cell and the signal quality of at least one adjacent cell, it is assumed that the signal quality of the adjacent cell is better than the serving cell to which the terminal is currently connected.
  • the network device determines to release the radio resource control connection with the terminal according to the measurement report, and, in the release message sent by the network device to the terminal, it can also carry the identifier of the adjacent cell whose signal quality is better than the current serving cell, The terminal can initiate a request to establish a connection to the adjacent cell according to the identification of the adjacent cell, thereby realizing the reconnection of the serving cell.
  • FIG. 5 shows an architecture diagram of another network device provided by an embodiment of the present application.
  • the network device 500 includes:
  • a configuration unit 501 configured to configure SRS configuration information
  • the SRS configuration information may include configuration information for instructing the terminal to periodically report the SRS, and may also include configuration information for instructing the terminal to report the SRS in a triggered manner.
  • a communication unit 502 configured to send the SRS configuration information to the terminal, and receive the SRS sent by the terminal;
  • a detection unit 503, configured to determine the channel quality between the terminal in the single signaling connection state and the network device according to the measured value of the SRS;
  • the detection unit 503 measures the received SRS, for example, measures the strength of the received SRS and the degree of interference, and according to the measured value of the SRS, the terminal in the single signaling connection state is connected to the Evaluate the channel quality of network equipment.
  • the releasing unit 504 is configured to determine whether to release the radio resource control connection with the terminal according to the channel quality.
  • the release unit 504 determines whether to release the radio resource control connection between the terminal in the single signaling connection state and the network device according to the result of the channel quality evaluated above, for example, when the channel quality is lower than a set
  • the absolute threshold it can be judged that the terminal in the single signaling connection state can no longer continue to enjoy the communication service of the current network device or serving cell, and then it is determined to release the radio resource control connection with the terminal in the single signaling connection state, thereby Reduce the service damage caused by the terminal being unable to switch in time.
  • FIG. 6 is a schematic structural diagram of a communication device 1000 provided by an embodiment of the present application.
  • the communication device 1000 includes: a processor 1010 , a memory 1020 , a communication interface 1030 , and a bus 1040 .
  • the communication interface 1030 in the communication device 1000 shown in FIG. 6 can be used to communicate with other devices.
  • the processor 1010 can be connected with the memory 1020 .
  • the memory 1020 may be used to store the program codes and data. Therefore, the memory 1020 may be a storage module inside the processor 1010 , or an external storage module independent from the processor 1010 , or may include a storage module inside the processor 1010 and an external storage module independent from the processor 1010 . part.
  • the communication device 1000 may further include a bus 1040 .
  • the memory 1020 and the communication interface 1030 may be connected to the processor 1010 through the bus 1040 .
  • the bus 1040 may be a peripheral component interconnect standard (Peripheral Component Interconnect, PCI) bus or an Extended Industry Standard Architecture (Extended Industry Standard Architecture, EISA) bus or the like.
  • PCI peripheral component interconnect standard
  • EISA Extended Industry Standard Architecture
  • the bus 1040 can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one line is shown in FIG. 6, but it does not mean that there is only one bus or one type of bus.
  • the processor 1010 may adopt a central processing unit (central processing unit, CPU).
  • the processor may also be other general-purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), off-the-shelf programmable gate arrays (FPGAs) or other Programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
  • DSPs digital signal processors
  • ASICs application specific integrated circuits
  • FPGAs off-the-shelf programmable gate arrays
  • a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the processor 1010 uses one or more integrated circuits to execute related programs, so as to implement the technical solutions provided by the embodiments of the present application.
  • the memory 1020 may include read only memory and random access memory, and provides instructions and data to the processor 1010 .
  • a portion of the processor 1010 may also include non-volatile random access memory.
  • the processor 1010 may also store device type information.
  • the processor 1010 executes the computer-executed instructions in the memory 1020 to execute the operation steps of the above method.
  • the communication device 1000 may correspond to the corresponding subject in executing the method according to each embodiment of the present application, and the above-mentioned and other operations and/or functions of each module in the communication device 1000 are respectively for the purpose of realizing the present application.
  • the corresponding processes of each method in the embodiment will not be repeated here.
  • 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, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. 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 unit may exist physically alone, or two or more units may be integrated into one unit.
  • the functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium.
  • the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution.
  • the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes .
  • Embodiments of the present application further provide a computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, is used to execute a method for generating diverse problems, and the method includes the methods described in the foregoing embodiments. at least one of the options.
  • the computer storage medium of the embodiments of the present application may adopt any combination of one or more computer-readable media.
  • the computer-readable medium may be a computer-readable signal medium or a computer-readable storage medium.
  • the computer readable storage medium can be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus or device, or any combination of the above. More specific examples (a non-exhaustive list) of computer readable storage media include: electrical connections having one or more wires, portable computer disks, hard disks, random access memory (RAM), read only memory (ROM), Erasable programmable read only memory (EPROM or flash memory), optical fiber, portable compact disk read only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the above.
  • a computer-readable storage medium can be any tangible medium that contains or stores a program that can be used by or in conjunction with an instruction execution system, apparatus, or device.
  • a computer-readable signal medium may include a propagated data signal in baseband or as part of a carrier wave with computer-readable program code coupled thereto. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the foregoing.
  • a computer-readable signal medium can also be any computer-readable medium other than a computer-readable storage medium that can transmit, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device .
  • Program code embodied on a computer readable medium may be transmitted using any suitable medium including, but not limited to, wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
  • Computer program code for performing the operations of the present application may be written in one or more programming languages, including object-oriented programming languages—such as Java, Smalltalk, C++, but also conventional Procedural programming language - such as the "C" language or similar programming language.
  • the program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer, or entirely on the remote computer or server.
  • the remote computer may be connected to the user's computer through any kind of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (eg, through the Internet using an Internet service provider) connect).
  • LAN local area network
  • WAN wide area network
  • Internet service provider an external computer

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Abstract

本申请提供了一种通信方法及相关设备，该通信方法包括：网络设备接收来自处于单信令连接状态的终端的测量报告；所述网络设备根据所述测量报告，确定是否释放与所述处于单信令连接状态的终端之间的通信连接。通过本申请，使得处于单信令连接状态的终端在合适的时机被释放，既可以保证不能继续接收当前服务小区服务的终端被及时释放，减少无法及时切换导致的业务受损，还可以保证能够正常接受当前服务小区服务的终端不被提前释放，降低了系统开销，提升了接入时延。

Description

通信方法及相关设备 技术领域
本申请涉及通信技术领域，特别涉及一种通信方法及相关设备。
背景技术
3GPP(3rd Generation Partnership Project，第三代合作伙伴计划)协议中规定，网络可以向处于无线资源控制(radio resource control，RRC)连接状态(RRC_CONNECTED)的终端发起RRC重配过程。其中，在RRC重配过程中，协议进一步规定仅在AS安全被激活后，建立了至少一个数据无线承载(data radio bearer，DRB)和信令无线承载2(signaling radio bearer2，SRB2)，并且这些无线承载(radio bearer，RB)没有挂起时，才在主小区组(masterCellGroup)中包含可用于切换的同步重配置信元(reconfigurationWithSync)。
在终端和基站之间的RB有且仅有信令无线承载0(signaling radio bearer2，SRB0)和信令无线承载1(signaling radio bearer1，SRB1)的情况下，终端的连接状态可以称之为单信令连接状态。
按照上面协议的规定，该时间窗内终端将无法接收到用于切换的同步重配置信元(reconfigurationWithSync)，从而无法发起切换，进而导致非接入层(non-access stratum，NAS)消息传递效率低、业务建立受损、业务建立时延长等问题。
针对上述问题，当前的一种做法是，在终端进入单信令连接状态时，设置并启动一个定时器。如果终端在该定时器超时前，没有检测到NAS消息，则直接触发网络设备对该终端进行释放。该定时器的时长通过操作、管理和维护网元(operation,administration and maintenance，OAM)配置，但是该做法存在该定时器时长不好确定的问题：
当定时器的时长参数取值越大，处于单信令连接状态的终端等待被释放的时间就越长，即单信令连接的终端越不容易被释放，这样当该终端和服务小区之间信号质量很差的时候，终端的NAS消息传递，业务建立、业务建立时延等都将无法得到保障。
当定时器的时长参数取值越小，处于单信令连接状态的终端等待被释放的时间越短，即单信令连接的终端越容易被释放，这样会导致需要建立协议数据单元(Protocol Data Unit，PDU)会话的终端会反复尝试接入网络，终端接入时延变大，极端场景下会引起信令风暴。终端被释放后，后续网络与终端之间如果有NAS消息需要传递或者业务需要建立，则该终端需要重新建立RRC连接，增加了系统开销，同时业务时延增大。
发明内容
有鉴于此，本申请提供了一种通信方法及相关设备，可以减少终端无法及时切换导致的业务受损。
为达到上述目的，本申请的第一方面提供一种通信方法，包括：
网络设备接收来自处于单信令连接状态的终端的测量报告(measurement report，MR)，并根据该测量报告，确定是否释放与该处于单信令连接状态的终端之间的无线资源控制(radio resource control，RRC)连接。
其中，处于单信令连接状态的终端和所述网络设备之间的无线承载RB有且仅有信令无线承载0(SRB0)和信令无线承载(SRB1)。
通过本方法，使得处于单信令连接状态的终端在合适的时机被释放，既可以使得不能继续接收当前服务小区服务的终端被及时释放，减少无法及时切换导致的业务受损，还可以保证能够正常接受当前服务小区服务的终端不被提前释放，降低了系统开销，提升了接入时延。
根据第一方面，在该通信方法的第一种可能的实现方式中，还包括，该网络设备向终端发送测量配置，该测量配置包括：测量对象和上报条件。
网络设备可以通过RRC信令向终端发送测量配置。测量配置中包括网络设备为终端配置的测量对象和上报条件，一方面，测量对象用于指示终端所要执行的测量，另一方面，上报条件用于指示终端以何种机制上报测量结果。
根据第一方面的第一种可能的实现方式，在该通信方法的第二种可能的实现方式中，该测量对象包括以下至少之一：
该终端当前连接的服务小区、该当前连接的服务小区的至少一个相邻小区。
网络设备根据测量需要，对终端的测量对象进行设定，该终端接收到测量对象之后，可以对该测量对象执行测量，既可对终端当前连接的服务小区进行测量，也可对当前服务小区的多个相邻小区进行测量，以满足后续步骤中，释放无线资源控制连接后再连接的需求。
根据第一方面的第一种可能的实现方式，在该通信方法的第三种可能的实现方式中，该上报条件包括以下至少之一：测量事件，上报周期。
终端得到测量结果后，如果满足上报条件，则该终端向网络设备发送测量结果。如何将测量结果上报给网络设备，有两种方式：周期性上报和事件触发的上报。其中，周期性上报的方式指网络设备为终端配置了上报周期，达到该上报周期时，终端即可触发上报；事件触发的上报方式指网络设备为终端配置了测量事件，如果终端的测量结果满足测量事件的要求，终端即可触发上报。终端可以通过测量报告(measurement report，MR)将测量结果进行上报。
根据第一方面的第三种可能的实现方式，在该通信方法的第四种可能的实现方式中，该测量事件包括以下至少之一：
A2事件：服务小区信号质量低于绝对阈值；
A3事件：相邻小区信号质量比服务小区高一个偏置值；
A4事件：相邻小区信号质量高于绝对阈值；
A5事件：服务小区信号质量低于第一绝对阈值，并且相邻小区信号质量高于第二绝对阈值；
B1事件：相邻小区信号质量高于绝对阈值；
B2事件：服务小区信号质量低于第一绝对阈值，并且相邻小区信号质量高于第二绝对阈值。
服务小区或者相邻小区信号质量可以是指当前连接的服务小区或者相邻小区的参考信号测量值。本申请中，参考信号的测量值包括参考信号接收功率(reference signal received power，RSRP)、参考信号接收质量(reference signal received quality，RSRQ)，信号与干扰加噪声比(signal to interference plus noise ratio，SINR)，或者接收的信号强度指示(received signal strength indicator，RSSI)。本申请中，服务小区或者相邻小区的参考信号可以包括同步信号和物理广播信道块(synchronization signal and physical broadcast channel block，SSB)或者信道状态信息参考信号(channel state information reference signal，CSI-RS)。本申请中，终端的参考信号可以包括信道探测参考信号(sounding reference signal，SRS)。
测量事件分为两种：同系统测量事件(包括同频与异频)：A1事件：服务小区信号质量高于绝对阈值；A2事件：服务小区信号质量低于绝对阈值；A3事件：相邻小区信号质量比服务小区高一个偏置值；A4事件：相邻小区信号质量高于绝对阈值；A5事件：服务小区信号质量低于第一绝对阈值，并且相邻小区信号质量高于第二绝对阈值；异系统测量事件：B1事件：相邻小区信号质量高于绝对阈值；B2事件：服务小区信号质量低于第一绝对阈值，并且相邻小区信号质量高于第二绝对阈值。网络设备根据测量需求，可选择上述测量事件进行配置，其中，该测量事件中的A2事件至B2事件均可以被配置为本方法中，用于触发上报条件。
根据第一方面的第四种可能的实现方式，在该通信方法的第五种可能的实现方式中，该测量报告中包含至少一个测量事件。
当测量结果的上报类型为事件触发上报时，此时上报的测量报告中，包含了终端的测量结果所满足的测量事件。网络设备可根据该测量报告确定释放与终端之间的无线资源控制连接。
根据第一方面的第四种可能的实现方式，在该通信方法的第六种可能的实现方式中，该测量报告中包含至少一个服务小区或者相邻小区的参考信号测量值。
当测量结果的上报类型为周期触发上报时，此时上报的测量报告中，包含了终端对至少一个当前连接的服务小区或者相邻小区的测量结果。网络设备可根据该测量报告，确定是否释放与终端之间的无线资源控制连接。例如，如果网络设备判断该测量报告中包括的服务小区的参考信号测量值低于一绝对阈值，或者相邻小区的参考信号测量值高于一绝对阈值，或者相邻小区的参考信号测量值比当前服务小区的参考信号测量值高出一个偏置值时，则确定释放与终端之间的无线资源控制连接。
根据第一方面，在该通信方法的第七种可能的实现方式中，执行该释放前还包括：
对该终端的连接状态进行检测，测定该终端处于单信令连接时，执行该释放。
当网络设备根据测量报告确定释放与终端之间的无线资源控制连接前，对终端的连接状态进行再次检测，当确定该终端处于单信令连接状态，再执行释放，以避免对处于非单信令连接状态的终端的误释放，导致业务数据受损失的问题。
根据第一方面，在所述通信方法的第八种可能的实现方式中，还包括：
完成所述释放后，使所述终端向信号质量优于释放前连接的服务小区的相邻小区发送建立连接的请求。
示例性的，该网络设备可以在发送给终端的释放消息中，携带信号质量优于该服 务小区的相邻小区的标识。当完成释放后，使该终端向信号质量更好的相邻小区发起建立连接的请求，从而实现服务小区的重新连接。
为达到上述目的，本申请的第二方面提供一种通信方法，包括：
网络设备接收处于单信令连接状态的终端发送的参考信号，该网络设备根据该参考信号的测量值，确定处于单信令连接状态的终端与网络设备之间的信道质量。该网络设备根据该信道质量，确定是否释放与终端之间的无线资源控制(radio resource control，RRC)连接。
其中，处于单信令连接状态的终端和所述网络设备之间的无线承载RB有且仅有信令无线承载0(SRB0)和信令无线承载(SRB1)。
本申请中，终端的参考信号可以包括信道探测参考信号(sounding reference signal，SRS)，网络设备通过接收到的信道探测参考信号对信道质量进行评估，并根据信道质量确定是否释放与处于单信令连接状态的终端之间的无线资源控制连接。
通过本方法，使得处于单信令连接状态的终端在合适的时机被释放，既可以保证不能继续接收当前服务小区服务的终端被及时释放，减少无法及时切换导致的业务受损，还可以保证能够正常接受当前服务小区服务的终端不被提前释放，降低了系统开销，提升了接入时延。
为达到上述目的，本申请的第三方面提供一种通信设备，包括：
总线；
通信接口，其与该总线连接；
至少一个处理器，其与该总线连接；以及
至少一个存储器，其与该总线连接并存储有程序指令，该程序指令当被该至少一个处理器执行时使得该至少一个处理器执行通信方法中任意一项所述的方法。
为达到上述目的，本申请的第四方面提供一种计算机可读存储介质，其上存储有程序指令，该程序指令当被计算机执行时使得该计算机执行通信方法中任意一项所述的方法。
为达到上述目的，本申请的第五方面提供一种计算机程序产品，其包括有程序指令，该程序指令当被计算机执行时使得该计算机执行通信方法中任意一项所述的方法。
为达到上述目的，本申请的第六方面提供一种通信装置，该装置用于执行通信方法中任意一项所述的方法。
本申请的这些和其它方面在以下(多个)实施例的描述中会更加简明易懂。
附图说明
以下参照附图来进一步说明本申请的各个特征和各个特征之间的联系。附图均为 示例性的，一些特征并不以实际比例示出，并且一些附图中可能省略了本申请所涉及领域的惯常的且对于本申请非必要的特征，或是额外示出了对于本申请非必要的特征，附图所示的各个特征的组合并不用以限制本申请。另外，在本说明书全文中，相同的附图标记所指代的内容也是相同的。具体的附图说明如下：
图1示出了本申请实施例提供的一种通信方法的流程图；
图2示出了本申请实施例提供的又一种通信方法的流程图；
图3示出了本申请实施例提供的终端、网络设备和AMF之间交互信令的示意图；
图4示出了本申请实施例提供的一种网络设备的架构图；
图5示出了本申请实施例提供的又一种网络设备的架构图；
图6示出了本申请实施例提供的一种通信设备的架构图。
附图标记说明
网络设备400；配置单元401；通信单元402；释放单元403；网络设备500；配置单元501；通信单元502；检测单元503；释放单元504；通信设备1000；处理器1010；存储器1020；通信接口1030；总线1040。
具体实施方式
为使本申请实施例的目的、技术方案和优点更加清楚，下面将结合本申请实施例中附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。通常在此处附图中描述和示出的本申请实施例的组件可以以各种不同的配置来布置和设计。因此，以下对在附图中提供的本申请的实施例的详细描述并非旨在限制要求保护的本申请的范围，而是仅仅表示本申请的选定实施例。基于本申请的实施例，本领域技术人员在没有做出创造性劳动的前提下所获得的所有其他实施例，都属于本申请保护的范围。
说明书和权利要求书中的词语“第一、第二、第三等”或模块A、模块B、模块C等类似用语，仅用于区别类似的对象，不代表针对对象的特定排序，可以理解地，在允许的情况下可以互换特定的顺序或先后次序，以使这里描述的本申请实施例能够以除了在这里图示或描述的以外的顺序实施。
在以下的描述中，所涉及的表示步骤的标号，如S110、S120……等，并不表示一定会按此步骤执行，在允许的情况下可以互换前后步骤的顺序，或同时执行。
说明书和权利要求书中使用的术语“包括”不应解释为限制于其后列出的内容；它不排除其它的元件或步骤。因此，其应当诠释为指定所提到的所述特征、整体、步骤或部件的存在，但并不排除存在或添加一个或更多其它特征、整体、步骤或部件及其组群。因此，表述“包括装置A和B的设备”不应局限为仅由部件A和B组成的设备。
本说明书中提到的“一个实施例”或“实施例”意味着与该实施例结合描述的特定特征、结构或特性包括在本申请的至少一个实施例中。因此，在本说明书各处出现的用语“在一个实施例中”或“在实施例中”并不一定都指同一实施例，但可以指同一实施例。此外，在一个或多个实施例中，能够以任何适当的方式组合各特定特征、结构或特性，如从本公开对本领域的普通技术人员显而易见的那样。
对本申请具体实施方式进行进一步详细说明之前，对本申请实施例中涉及的技术用语进行说明。除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。如有不一致，以本说明书中所说明的含义或者根据本说明书中记载的内容得出的含义为准。另外，本文中所使用的术语只是为了描述本申请实施例的目的，不是旨在限制本申请。
3GPP，3rd Generation Partnership Project，第三代合作伙伴计划。
终端，本申请中指的是能够在移动通信网络中和网络基站进行通信的各种终端设备的统称，可以是手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)、个人数字助理(Personal Digital Assistant，PDA)、移动上网装置(Mobile Internet Device，MID)、可穿戴式设备(Wearable Device)或车载设备等终端设备，在本申请实施例中并不限定终端的具体类型。
gNB，5G基站；eNB，4G基站。
AMF，Access and Mobility Management Function，接入和移动性管理功能，负责用户的移动性和接入管理。
RRC，Radio Resource Control，无线资源控制，又称为无线资源管理(RRM)或者无线资源分配(RRA)，是指通过一定的策略和手段进行无线资源管理、控制和调度，在满足服务质量的要求下，尽可能地充分利用有限的无线网络资源，确保到达规划的覆盖区域，尽可能地提高业务容量和资源利用率。
AS，Access Stratum，接入层。与之相对的是NAS，非接入层，AS层为NAS层提供服务。
NAS，Non-access stratum，非接入层存在于UMTS的无线通信协议栈中，作为核心网与终端之间的功能层。该层支持在这两者之间的信令和数据传输。
PDU，Protocol Data Unit，协议数据单元，是指在分层网络结构，例如在开放式系统互联(OSI)模型中，在传输系统的每一层都将建立协议数据单元。
RB，Radio Bearer，无线承载，无线承载有两种，一种是数据无线承载称为DRB(Data Radio Bearer)，一种是信令承载称为SRB(Signaling Radio Bearer)；
SRB作为一种特殊的无线承载，其仅仅用来传输RRC和NAS消息，在协议36.331中，定义了SRBs的传输信道：
SRB0用来传输RRC消息，在逻辑信道CCCH上传输；
SRB1用来传输RRC消息(也许会包含piggybacked NAS消息)，在SRB2承载的建立之前，比SRB2具有更高的优先级。在逻辑信道DCCH上传输；
SRB2用来传输NAS消息，比SRB1具有更低的优先级，并且总是在安全模式激活之后才配置SRB2，在逻辑信道DCCH上传输；
DRB用于承载用户面数据。
OAM，operation，administration and maintenance，操作维护管理，是指根据运营商网络运营的实际需要，通常将网络的管理工作划分为3大类：操作(Operation)、管理(Administration)、维护(Maintenance)，简称OAM。操作主要完成日常网络和业务进行的分析、预测、规划和配置工作；维护主要是对网络及其业务的测试和故 障管理等进行的日常操作活动。
RSRP，reference signal received power，参考信号接收功率。
RSRQ，reference signal received quality，参考信号接收质量。
SINR，signal to interference plus noise ratio，信号与干扰加噪声比。
RSSI，received signal strength indicator，信号强度指示。
SSB，synchronization signal and physical broadcast channel block，同步信号和物理广播信道块。
CSI-RS，channel state information reference signal，信道状态信息参考信号。
SRS，sounding reference signal，信道探测参考信号。
PDCCH，Physical Downlink Control Channel，下行物理层控制信道。
DCI，Downlink Control Information，下行控制信令。
测量事件分为两种：
同系统测量事件(包括同频与异频)：
A1事件：服务小区信号质量高于绝对阈值；
A2事件：服务小区信号质量低于绝对阈值；
A3事件：相邻小区信号质量比服务小区高一个偏置值；
A4事件：相邻小区信号质量高于绝对阈值；
A5事件：服务小区信号质量低于第一绝对阈值，并且相邻小区信号质量高于第二绝对阈值；
异系统测量事件：
B1事件：相邻小区信号质量高于绝对阈值；
B2事件：服务小区信号质量低于第一绝对阈值，并且相邻小区信号质量高于第二绝对阈值。
在终端和基站之间的无线承载(radio bearer，RB)有且仅有SRB0和SRB1的情况下，终端的连接状态可以称之为单信令连接状态。
技术一：基于上述单信令连接的终端无法直接发起切换的问题，现有技术通过设置并启动一个定时器，如果终端在该定时器超时前，没有检测到NAS消息，则直接触发网络侧对该终端进行释放。
技术一的缺陷：
当定时器的时长参数取值越大，处于单信令连接状态的终端等待被释放的时间就越长，即单信令连接的终端越不容易被释放，这样当该终端和服务小区之间信号质量很差的时候，终端的NAS消息传递，业务建立、业务建立时延等都将无法得到保障。
当定时器的时长参数取值越小，处于单信令连接状态的终端等待被释放的时间越短，即单信令连接的终端越容易被释放，这样会导致需要建立PDU会话的终端会反复尝试接入网络，终端接入时延变大，极端场景下会引起信令风暴。终端被释放后，后续网络与终端之间如果有NAS消息需要传递或者业务需要建立，则该终端需要重新建立无线资源控制连接，增加了系统开销，同时业务时延增大。
基于上述技术中存在的缺陷，本申请的实施例提供了一种通信方法及相关设备，通过为单信令连接的终端设计一种信号质量检测机制，使单信令连接的终端在合适的时机被释放，可以减少终端无法及时切换导致的业务受损。下面对本申请进行详细介绍。
实施例一
如图1所示为本申请实施例提供了一种通信方法，该方法包括：
S101：网络设备接收终端发送的测量报告。
示例性的，该终端可以处于单信令连接状态。
其中，处于单信令连接状态的终端和所述网络设备之间的RB可以有且仅有信令SRB0和SRB1。或者，处于单信令连接状态的终端是指还没有建立PDU会话的终端。或者，从终端接入小区后，到核心网指示终端建立PDU会话前，终端所处的状态为单信令连接状态。
可选的，在该终端向网络设备发送测量报告前，该网络设备可以向终端发送测量配置。
具体的，该测量配置包括测量对象和上报条件，其中该测量对象用于指示终端所要执行测量的测量对象，该上报条件用于指示终端以何种机制上报测量结果。
本申请实施例中，根据测量需要，可对终端的测量对象进行设定，其中该测量对象可设定为至少包括：该终端当前连接的服务小区，或者当前服务小区的至少一个相邻小区。终端接收到测量对象之后，根据设定的测量对象，既可对终端当前连接的服务小区进行测量，也可对当前服务小区的多个相邻小区进行测量，以满足后续步骤中，释放无线资源控制连接后再连接的需求。
本申请实施例中，根据测量需要，可对终端的上报条件进行设定，其中该上报条件可设定为至少包括：测量事件，或者上报周期。终端根据上述设定的测量对象执行对应的测量，得到测量结果后，根据设定的上报条件，可实现事件触发的上报，或者周期性上报。其中，周期性上报的方式指网络设备为终端配置了上报周期，达到该上报周期时，终端即可触发上报；事件触发的上报方式指网络设备为终端配置了测量事件，如果终端的测量结果满足测量事件的要求，终端即可触发上报。
本申请的一些实施例中，上述测量事件可包括以下至少之一：
A2事件：服务小区信号质量低于绝对阈值；
A3事件：相邻小区信号质量比服务小区高一个偏置值；
A4事件：相邻小区信号质量高于绝对阈值；
A5事件：服务小区信号质量低于第一绝对阈值，并且相邻小区信号质量高于第二绝对阈值；
B1事件：相邻小区信号质量高于绝对阈值；
B2事件：服务小区信号质量低于第一绝对阈值，并且相邻小区信号质量高于第二绝对阈值。
其中，上述服务小区或者相邻小区信号质量可以是指服务小区或者相邻小区的参考信号测量值。本申请中，参考信号的测量值包括参考信号接收功率(reference signal received power，RSRP)、参考信号接收质量(reference signal received quality，RSRQ)， 信号与干扰加噪声比(signal to interference plus noise ratio，SINR)，或者接收的信号强度指示(received signal strength indicator，RSSI)。本申请中，服务小区或者相邻小区的参考信号可以包括同步信号和物理广播信道块(synchronization signal and physical broadcast channel block，SSB)或者信道状态信息参考信号(channel state information reference signal，CSI-RS)。本申请中，终端的参考信号可以包括信道探测参考信号(sounding reference signal，SRS)。
终端根据设定的测量对象，执行完成对该测量对象的测量，得到测量结果后，并且在该测量结果满足上述设定的上报条件时，可以通过测量报告将测量结果进行上报给网络设备。
S102：该网络设备根据所述测量报告，确定是否释放与该终端之间的通信连接。
该通信连接可以为RRC连接。
本申请实施例中，网络设备接收的终端发送的测量报告包含事件触发的上报或者周期性上报。具体的，当测量报告的上报类型为事件触发上报时，此时上报的测量报告中，包含至少一个上述设定的测量事件，网络设备可根据该测量报告确定释放与该终端之间的无线资源控制连接。当测量报告的上报类型为周期触发上报时，此时上报的测量报告中，包含了终端对至少一个当前连接的服务小区或者相邻小区的测量结果。网络设备可根据该测量报告，确定是否释放与终端之间的无线资源控制连接。例如，如果网络设备判断该测量报告中包括的服务小区的参考信号测量值低于一绝对阈值，或者相邻小区的参考信号测量值高于一绝对阈值，或者相邻小区的参考信号测量值比当前服务小区的参考信号测量值高出一个偏置值时，则确定释放与终端之间的无线资源控制连接。
可选的，网络设备根据测量报告确定执行上述释放前，还可对所述终端的连接状态进行检测，测定该终端处于单信令连接时，执行所述释放。以避免对处于非单信令连接状态的终端的误释放，导致业务数据受损失的问题。
示例性的，网络设备完成上述释放后，还可使该终端向信号质量优于释放前连接的服务小区的相邻小区发送建立连接的请求。具体的，当终端发送的测量报告中包含当前连接的服务小区的服务小区的信号质量，以及至少一个相邻小区的信号质量时，假设相邻小区的信号质量优于终端当前连接的服务小区时，网络设备根据该测量报告确定释放与该终端之间的无线资源控制连接。并且，在网络设备发送给终端的释放消息中，还可携带信号质量优于当前服务小区的相邻小区的标识。终端根据该相邻小区的标识，即可发起向该相邻小区建立连接的请求，从而实现服务小区的重新连接。
实施例二
如图2所示为本申请实施例提供的另一种通信方法的流程图，该方法包括：
S201：网络设备接收终端发送的参考信号，根据该参考信号的测量值，确定该终端与网络设备之间的信道质量。
示例性的，该终端可以处于单信令连接状态。本申请实施例中，终端的参考信号可以包括信道探测参考信号(sounding reference signal，SRS)。网络设备为终端配置 SRS配置信息，并通过下行物理层控制信道(Physical Downlink Control Channel，PDCCH)向终端发送下行控制信令(Downlink Control Information，DCI)，其中该SRS配置信息中可以包括为终端配置的上报SRS的形式，具体可包括周期性上报信令或触发性上报信令，终端根据接收到的下行控制信令中携带的SRS配置信息，进行SRS的周期性上报或触发性上报，网络设备根据接收到的SRS，对处于单信令连接状态的终端与网络设备之间的信道质量进行评估。
S202：该网络设备根据该信道质量，确定是否释放与终端之间的无线资源控制连接。
本申请实施例中，网络设备根据上述评估的信道质量，确定是否释放与处于单信令连接状态的终端的无线资源控制连接，例如，当该信道质量低于一设定的绝对阈值时，可判断该处于单信令连接状态的终端无法再继续享受当前网络设备或服务小区的通信服务，则确定释放与处于单信令连接状态的终端的无线资源控制连接，从而减少终端无法及时切换导致的业务受损。
实施例三
如图3所示，本申请还提供了一种实施例，具体介绍了本申请中，终端、网络设备和AMF之间的信令交互过程，该过程包括：
S301：终端向网络设备发送RRC配置请求信令(RRC Setup Request)，请求建立RRC连接；
S302：网络设备收到RRC配置请求信令，并且在终端被允许的情况下，向终端发送下行控制信令，该下行控制信令中包含RRC配置信息(RRC Setup(SRB1))；
S303：终端根据接收的下行控制信令中包含的RRC配置信息(RRC Setup(SRB1))，完成与网络设备的RRC连接，并向网络设备发送RRC连接完成信令(RRC Setup Complete)；
在RRC连接完成后，终端进入RRC连接模式，随后执行：
S304：网络设备向AMF(Access and Mobility Management Function，接入和移动性管理功能)发送初始化终端的请求信令(Initial UE Message)，请求为终端建立上下文；
S305：AMF收到建立上下文的请求，向网络设备发送包含初始化的上下文信息的控制信令(Initial Context Setup Request)；
S306：网络设备根据接收的初始化的上下文信息，为终端建立上下文，并向AMF发送初始上下文建立响应的信令(Initial Context Setup Response)；
此时，网络设备完成与终端的RRC连接和上下文的建立，但是并未建立PDU会话承载，该终端处于单信令连接的状态，随后执行：
S307：网络设备向终端发送配置信息(RRC Connection Reconfiguration)；
本申请实施例中，网络设备为终端配置的配置信息可以包括两种实现方式，具体的：
在第一种实现方式中，该配置信息至少包括需要终端执行的测量对象或上报条件，其中该测量对象用于指示终端所要执行测量的测量对象，该上报条件用于指示终端以 何种机制上报测量结果。
本申请实施例中，该测量对象可设定为至少包括：该终端当前连接的服务小区，或者当前服务小区的至少一个相邻小区。终端接收到测量对象之后，根据设定的测量对象，既可对终端当前连接的服务小区进行测量，也可对当前服务小区的多个相邻小区进行测量，并将测量结果发送到网络设备，以满足后续步骤中，释放RRC连接后再连接的需求。
本申请实施例中，该上报条件可设定为至少包括：测量事件，或者上报周期。终端根据上述设定的测量对象执行对应的测量，得到测量结果后，根据设定的上报条件，可实现事件触发的上报，或者周期性上报。其中，周期性上报的方式指网络设备为终端配置了上报周期，达到该上报周期时，终端即可触发上报；事件触发的上报方式指网络设备为终端配置了测量事件，如果终端的测量结果满足测量事件的要求，终端即可触发上报。
本实施例中，上述测量事件可设定为包括下述列举的一个或多个：
A2事件：服务小区信号质量低于绝对阈值；
A3事件：相邻小区信号质量比服务小区高一个偏置值；
A4事件：相邻小区信号质量高于绝对阈值；
A5事件：服务小区信号质量低于第一绝对阈值，并且相邻小区信号质量高于第二绝对阈值；
B1事件：相邻小区信号质量高于绝对阈值；
B2事件：服务小区信号质量低于第一绝对阈值，并且相邻小区信号质量高于第二绝对阈值。
其中，上述服务小区或者相邻小区信号质量可以是指服务小区或者相邻小区的参考信号测量值。本实施例中，参考信号的测量值包括参考信号接收功率(reference signal received power，RSRP)、参考信号接收质量(reference signal received quality，RSRQ)，信号与干扰加噪声比(signal to interference plus noise ratio，SINR)，或者接收的信号强度指示(received signal strength indicator，RSSI)。本实施例中，服务小区或者相邻小区的参考信号可以包括同步信号和物理广播信道块(synchronization signal and physical broadcast channel block，SSB)或者信道状态信息参考信号(channel state information reference signal，CSI-RS)。
在第二种实现方式中，该配置信息可设定为包括网络设备为终端配置SRS配置信息，其中该SRS配置信息中可以包括为终端配置的上报SRS的形式，具体可包括周期性上报或触发性上报，终端根据该SRS配置信息执行SRS的周期性上报或触发性上报，网络设备根据接收到的SRS，对处于单信令连接状态的终端与网络设备之间的信道质量进行评估。
S308：终端向网络设备发送配置完成的信令(RRC Connection Reconfiguration Complete)，并执行根据上述配置信息执行对应的测量或发送；
S309：终端向网络设备发送测量报告(Measurement Report)；
本申请实施例中，根据步骤S307中配置信息的两种实现方式，终端也对应的包含两种测量的执行方式和测量报告的发送方式，具体的，
当上述配置信息包括第一种实现方式中的测量对象或上报条件时，由该终端根据该配置信息执行对测量对象的测量，并将测量结果以测量报告的形式发送至网络设备，其中，网络设备可根据接收到的测量报告，判断终端与当前服务小区或相邻小区的信道质量。
当上述配置信息包括第二种实现方式中的SRS配置信息时，由该终端根据该SRS配置信息执行SRS的周期性上报或触发性上报，网络设备需要对接收到的SRS进行进一步检测，以判断终端与当前连接的服务小区之间的信道质量。
S310：网络设备根据接收到的测量报告，释放与终端的RRC连接(RRC Release)；
本申请实施例中，网络设备根据接收到的测量报告，确定是否释放与终端的RRC连接；
对应步骤S307的第一种实现方式，当测量报告的上报类型为事件触发上报时，此时上报的测量报告中，包含至少一个上述设定的测量事件，网络设备可根据该测量报告确定释放与该终端之间的RRC连接；当测量报告的上报类型为周期触发上报时，此时上报的测量报告中，包含了终端对至少一个当前连接的服务小区或者相邻小区的测量结果。网络设备可根据该测量报告，确定是否释放与终端之间的无线资源控制连接。例如，如果网络设备判断该测量报告中包括的服务小区的参考信号测量值低于一绝对阈值，或者相邻小区的参考信号测量值高于一绝对阈值，或者相邻小区的参考信号测量值比当前服务小区的参考信号测量值高出一个偏置值时，则确定释放与终端之间的RRC连接。
对应步骤S307的第二种实现方式，当终端向网络设备发送的测量报告中仅包含SRS时，网络设备需要根据该SRS对处于单信令连接状态的终端与网络设备之间的信道质量进行评估，并根据评估的信道质量，确定是否释放与处于单信令连接状态的终端的RRC连接，例如，当该信道质量低于一设定的绝对阈值时，可判断该处于单信令连接状态的终端无法再继续享受当前网络设备或服务小区的通信服务，则确定释放与处于单信令连接状态的终端的RRC连接。
实施例四
如图4所示为本申请实施例提供了一种网络设备的架构图，该网络设备400包括：
配置单元401，用于配置测量配置，该测量配置包括：测量对象和上报条件；
本申请实施例中，该测量对象用于指示终端所要执行测量的测量对象，该上报条件用于指示终端以何种机制上报测量结果。其中该测量对象可设定为至少包括：该终端当前连接的服务小区，或者当前服务小区的至少一个相邻小区。终端接收到测量对象之后，根据设定的测量对象，既可对终端当前连接的服务小区进行测量，也可对当前服务小区的多个相邻小区进行测量，以满足后续步骤中，释放无线资源控制连接后再连接的需求。其中该上报条件可设定为至少包括：测量事件，或者上报周期。终端根据上述设定的测量对象执行对应的测量，得到测量结果后，根据设定的上报条件，可实现事件触发的上报，或者周期性上报。其中，周期性上报的方式指配置单元401为终端配置了上报周期，达到该上报周期时，终端即可触发上报；事件触发的上报方式指配置单元401为终端配置了测量事件，如果终端的测量结果满足测量事件的要求， 终端即可触发上报。
本申请的一些实施例中，上述测量事件可包括以下至少之一：
同系统测量事件(包括同频与异频)：
A2事件：服务小区信号质量低于绝对阈值；
A3事件：相邻小区信号质量比服务小区高一个偏置值；
A4事件：相邻小区信号质量高于绝对阈值；
A5事件：服务小区信号质量低于第一绝对阈值，并且相邻小区信号质量高于第二绝对阈值；
异系统测量事件：
B1事件：相邻小区信号质量高于绝对阈值；
B2事件：服务小区信号质量低于第一绝对阈值，并且相邻小区信号质量高于第二绝对阈值。
其中，上述服务小区或者相邻小区信号质量可以是指服务小区或者相邻小区的参考信号测量值。本申请中，参考信号的测量值包括参考信号接收功率(reference signal received power，RSRP)、参考信号接收质量(reference signal received quality，RSRQ)，信号与干扰加噪声比(signal to interference plus noise ratio，SINR)，或者接收的信号强度指示(received signal strength indicator，RSSI)。本申请中，服务小区或者相邻小区的参考信号可以包括同步信号和物理广播信道块(synchronization signal and physical broadcast channel block，SSB)或者信道状态信息参考信号(channel state information reference signal，CSI-RS)。本申请中，终端的参考信号可以包括信道探测参考信号(sounding reference signal，SRS)。
通信单元402，用于向终端发送该测量配置，并接收终端发送的测量报告；
本申请实施例中，通信单元402接收终端发送的测量报告包含事件触发的上报或者周期性上报，具体的，当测量报告的上报类型为事件触发上报时，此时上报的测量报告中，包含至少一个上述设定的测量事件；当测量报告的上报类型为周期触发上报时，此时上报的测量报告中，包含了终端对至少一个当前连接的服务小区或者相邻小区的测量结果。
释放单元403，用于根据该测量报告，确定是否释放与该终端之间的无线资源控制连接。
本申请实施例中，当测量报告中包含至少一个上述设定的测量事件时，该释放单元403可释放与该终端之间的无线资源控制连接。或者，当测量报告中包含了终端对至少一个当前连接的服务小区或者相邻小区的参考信号测量值时，假设该测量报告中包括的服务小区的参考信号测量值低于一绝对阈值，或者相邻小区的参考信号测量值高于一绝对阈值，或者相邻小区的参考信号测量值比当前服务小区的参考信号测量值高出一个偏置值时，则确定释放与终端之间的无线资源控制连接。
本申请的一些实施例中，执行上述释放前，还可对所述终端的连接状态进行检测，测定该终端处于单信令连接时，执行所述释放。
本申请的一些实施例中，完成上述释放后，还可使该终端向信号质量优于释放前连接的服务小区的相邻小区发送建立连接的请求。具体的，当终端发送的测量报告中 包含当前连接的服务小区的服务小区的信号质量，以及至少一个相邻小区的信号质量时，假设相邻小区的信号质量优于终端当前连接的服务小区时，网络设备根据该测量报告确定释放与该终端之间的无线资源控制连接，并且，在网络设备发送给终端的释放消息中，还可携带信号质量优于当前服务小区的相邻小区的标识，终端根据该相邻小区的标识，即可发起向该相邻小区建立连接的请求，从而实现服务小区的重新连接。
实施例五
如图5所示为本申请实施例提供的又一种网络设备的架构图，该网络设备500包括：
配置单元501，用于配置SRS配置信息；
本申请实施例中，该SRS配置信息可以包括指示终端进行周期性上报SRS的配置信息，还可以包括指示终端进行触发性上报SRS的配置信息。
通信单元502，用于向终端发送该SRS配置信息，并接收终端发送的SRS；
检测单元503，用于根据该SRS的测量值，确定处于单信令连接状态的终端与网络设备之间的信道质量；
本申请实施例中，检测单元503对接收到的SRS进行测量，例如对接收该SRS的强弱程度和受干扰程度进行测量，根据该SRS的测量值，对处于单信令连接状态的终端与网络设备的信道质量进行评估。
释放单元504，用于根据该信道质量，确定是否释放与该终端之间的无线资源控制连接。
本申请实施例中，释放单元504根据上述评估的信道质量的结果，确定是否释放处于单信令连接状态的终端与网络设备之间的无线资源控制连接，例如，当该信道质量低于一设定的绝对阈值时，可判断该处于单信令连接状态的终端无法再继续享受当前网络设备或服务小区的通信服务，则确定释放与处于单信令连接状态的终端的无线资源控制连接，从而减少终端无法及时切换导致的业务受损。
实施例六
图6是本申请实施例提供的一种通信设备1000的结构性示意性图。该通信设备1000包括：处理器1010、存储器1020、通信接口1030、总线1040。
应理解，图6所示的通信设备1000中的通信接口1030可以用于与其他设备之间进行通信。
其中，该处理器1010可以与存储器1020连接。该存储器1020可以用于存储该程序代码和数据。因此，该存储器1020可以是处理器1010内部的存储模块，也可以是与处理器1010独立的外部存储模块，还可以是包括处理器1010内部的存储模块和与处理器1010独立的外部存储模块的部件。
其中，通信设备1000还可以包括总线1040。其中，存储器1020、通信接口1030可以通过总线1040与处理器1010连接。总线1040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1040可以分为地址总线、数据总线、控制总线 等。为便于表示，图6中仅用一条线表示，但并不表示仅有一根总线或一种类型的总线。
应理解，在本申请实施例中，该处理器1010可以采用中央处理模块(central processing unit，CPU)。该处理器还可以是其它通用处理器、数字信号处理器(digital signal processor，DSP)、专用集成电路(application specific integrated circuit，ASIC)、现成可编程门阵列(field programmable gate Array，FPGA)或者其它可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。或者该处理器1010采用一个或多个集成电路，用于执行相关程序，以实现本申请实施例所提供的技术方案。
该存储器1020可以包括只读存储器和随机存取存储器，并向处理器1010提供指令和数据。处理器1010的一部分还可以包括非易失性随机存取存储器。例如，处理器1010还可以存储设备类型的信息。
在通信设备1000运行时，所述处理器1010执行所述存储器1020中的计算机执行指令执行上述方法的操作步骤。
应理解，根据本申请实施例的通信设备1000可以对应于执行根据本申请各实施例的方法中的相应主体，并且通信设备1000中的各个模块的上述和其它操作和/或功能分别为了实现本实施例各方法的相应流程，为了简洁，在此不再赘述。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现 出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
本申请实施例还提供了一种计算机可读存储介质，其上存储有计算机程序，该程序被处理器执行时用于执行一种多样化问题生成方法，该方法包括上述各个实施例所描述的方案中的至少之一。
本申请实施例的计算机存储介质，可以采用一个或多个计算机可读的介质的任意组合。计算机可读介质可以是计算机可读信号介质或者计算机可读存储介质。计算机可读存储介质例如可以是，但不限于，电、磁、光、电磁、红外线、或半导体的系统、装置或器件，或者任意以上的组合。计算机可读存储介质的更具体的例子(非穷举的列表)包括：具有一个或多个导线的电连接、便携式计算机磁盘、硬盘、随机存取存储器(RAM)、只读存储器(ROM)、可擦式可编程只读存储器(EPROM或闪存)、光纤、便携式紧凑磁盘只读存储器(CD-ROM)、光存储器件、磁存储器件、或者上述的任意合适的组合。在本文件中，计算机可读存储介质可以是任何包含或存储程序的有形介质，该程序可以被指令执行系统、装置或者器件使用或者与其结合使用。
计算机可读的信号介质可以包括在基带中或者作为载波一部分传播的数据信号，其中连接了计算机可读的程序代码。这种传播的数据信号可以采用多种形式，包括但不限于电磁信号、光信号或上述的任意合适的组合。计算机可读的信号介质还可以是计算机可读存储介质以外的任何计算机可读介质，该计算机可读介质可以发送、传播或者传输用于由指令执行系统、装置或者器件使用或者与其结合使用的程序。
计算机可读介质上包含的程序代码可以用任何适当的介质传输，包括、但不限于无线、电线、光缆、RF等等，或者上述的任意合适的组合。
可以以一种或多种程序设计语言或其组合来编写用于执行本申请操作的计算机程序代码，所述程序设计语言包括面向对象的程序设计语言—诸如Java、Smalltalk、C++，还包括常规的过程式程序设计语言—诸如“C”语言或类似的程序设计语言。程序代码可以完全地在用户计算机上执行、部分地在用户计算机上执行、作为一个独立的软件包执行、部分在用户计算机上部分在远程计算机上执行、或者完全在远程计算机或服务器上执行。在涉及远程计算机的情形中，远程计算机可以通过任意种类的网络，包括局域网(LAN)或广域网(WAN)，连接到用户计算机，或者，可以连接到外部计算机(例如利用因特网服务提供商来通过因特网连接)。
注意，上述仅为本申请的较佳实施例及所运用的技术原理。本领域技术人员会理解，本申请不限于这里所述的特定实施例，对本领域技术人员来说能够进行各种明显的变化、重新调整和替代而不会脱离本申请的保护范围。因此，虽然通过以上实施例对本申请进行了较为详细的说明，但是本申请不仅仅限于以上实施例，在不脱离本申请的构思的情况下，还可以包括更多其他等效实施例，均属于本申请的保护范畴。

Claims (34)

  1. 一种通信方法，其特征在于，包括：
    网络设备接收来自处于单信令连接状态的终端的测量报告；
    所述网络设备根据所述测量报告，确定是否释放与所述处于单信令连接状态的终端之间的通信连接。
  2. 根据权利要求1所述的方法，其特征在于，所述处于单信令连接状态的终端和所述网络设备之间的无线承载RB有且仅有信令无线承载0(SRB0)和信令无线承载(SRB1)。
  3. 根据权利要求1所述的方法，其特征在于，所述通信连接为无线资源控制RRC连接。
  4. 根据权利要求1所述的方法，其特征在于，还包括，所述网络设备向终端发送测量配置，该测量配置包括：测量对象和上报条件。
  5. 根据权利要求4所述的方法，其特征在于，所述测量对象包括以下至少之一：
    所述终端当前连接的服务小区、该当前连接的服务小区的至少一个相邻小区。
  6. 根据权利要求4所述的方法，其特征在于，所述上报条件包括以下至少之一：
    测量事件，上报周期。
  7. 根据权利要求6所述的方法，其特征在于，所述测量事件包括以下至少之一：
    A2事件：服务小区信号质量低于绝对阈值；
    A3事件：相邻小区信号质量比服务小区高一个偏置值；
    A4事件：相邻小区信号质量高于绝对阈值；
    A5事件：服务小区信号质量低于第一绝对阈值，并且相邻小区信号质量高于第二绝对阈值；
    B1事件：相邻小区信号质量高于绝对阈值；
    B2事件：服务小区信号质量低于第一绝对阈值，并且相邻小区信号质量高于第二绝对阈值。
  8. 根据权利要求7所述的方法，其特征在于，所述测量报告中包含至少一个所述测量事件。
  9. 根据权利要求6所述的方法，其特征在于，所述测量报告中包含至少一个当前连接的服务小区或者相邻小区的参考信号测量值。
  10. 根据权利要求1所述的方法，其特征在于，执行所述释放前还包括：
    对所述终端的连接状态进行检测，测定该终端处于单信令连接时，执行所述释放。
  11. 根据权利要求1所述的方法，其特征在于，完成所述释放后还包括：
    使所述终端向信号质量优于释放前连接的服务小区的相邻小区发送建立连接的请求。
  12. 一种通信方法，其特征在于，包括：
    网络设备接收处于单信令连接状态的终端发送的参考信号，根据该参考信号的测量值，确定所述处于单信令连接状态的终端与所述网络设备之间的信道质量；
    根据所述信道质量，确定是否释放与所述终端之间的通信连接。
  13. 根据权利要求12所述的方法，其特征在于，所述处于单信令连接状态的终端和所述网络设备之间的无线承载RB有且仅有信令无线承载0(SRB0)和信令无线承载(SRB1)。
  14. 根据权利要求12所述的方法，其特征在于，所述通信连接为无线资源控制RRC连接。
  15. 根据权利要求12所述的方法，其特征在于，所述参考信号包括信道探测参考信号SRS。
  16. 一种网络设备，其特征在于，包括：
    通信单元，用于接收来自处于单信令连接状态的终端的测量报告；
    释放单元，用于根据所述测量报告，确定是否释放与所述处于单信令连接状态的终端之间的通信连接。
  17. 根据权利要求16所述的设备，其特征在于，所述处于单信令连接状态的终端和所述网络设备之间的无线承载RB有且仅有信令无线承载0(SRB0)和信令无线承载(SRB1)。
  18. 根据权利要求16所述的设备，其特征在于，所述通信连接为无线资源控制RRC连接。
  19. 根据权利要求16所述的设备，其特征在于，还包括：
    配置单元，用于配置测量配置，并通过所述通信单元向所述终端发送，该测量配置包括：测量对象和上报条件。
  20. 根据权利要求19所述的设备，其特征在于，所述测量对象包括以下至少之一：
    所述终端当前连接的服务小区、该当前连接的服务小区的至少一个相邻小区。
  21. 根据权利要求19所述的设备，其特征在于，所述上报条件包括以下至少之一：
    测量事件，上报周期。
  22. 根据权利要求21所述的设备，其特征在于，所述测量事件包括以下至少之一：
    A2事件：服务小区信号质量低于绝对阈值；
    A3事件：相邻小区信号质量比服务小区高一个偏置值；
    A4事件：相邻小区信号质量高于绝对阈值；
    A5事件：服务小区信号质量低于第一绝对阈值，并且相邻小区信号质量高于第二绝对阈值；
    B1事件：相邻小区信号质量高于绝对阈值；
    B2事件：服务小区信号质量低于第一绝对阈值，并且相邻小区信号质量高于第二绝对阈值。
  23. 根据权利要求22所述的设备，其特征在于，所述测量报告中包含至少一个所述测量事件。
  24. 根据权利要求21所述的设备，其特征在于，所述测量报告中包含至少一个 当前连接的服务小区或者相邻小区的参考信号测量值。
  25. 根据权利要求16所述的设备，其特征在于，执行所述释放前还包括：
    对所述终端的连接状态进行检测，测定该终端处于单信令连接时，执行所述释放。
  26. 根据权利要求16所述的设备，其特征在于，完成所述释放后还包括：
    使所述终端向信号质量优于释放前连接的服务小区的相邻小区发送建立连接的请求。
  27. 一种网络设备，其特征在于，包括：
    通信单元，用于接收处于单信令连接状态的终端发送的参考信号；
    检测单元，用于根据所述参考信号的测量值，确定所述处于单信令连接状态的终端与网络设备之间的信道质量；
    释放单元，用于根据所述信道质量，确定是否释放与所述终端之间的通信连接。
  28. 根据权利要求27所述的设备，其特征在于，所述处于单信令连接状态的终端和所述网络设备之间的无线承载RB有且仅有信令无线承载0(SRB0)和信令无线承载(SRB1)。
  29. 根据权利要求27所述的设备，其特征在于，所述通信连接为无线资源控制RRC连接。
  30. 根据权利要求27所述的设备，其特征在于，所述参考信号包括信道探测参考信号SRS。
  31. 一种通信设备，其特征在于，包括：
    总线；
    通信接口，其与所述总线连接；
    至少一个处理器，其与所述总线连接；以及
    至少一个存储器，其与所述总线连接并存储有程序指令，所述程序指令当被所述至少一个处理器执行时使得所述至少一个处理器执行权利要求1至11或权利要求12至15任意一项所述的方法。
  32. 一种计算机可读存储介质，其特征在于，其上存储有程序指令，其特征在于，所述程序指令当被计算机执行时使得所述计算机执行权利要求1至11或权利要求12至15任意一项所述的方法。
  33. 一种计算机程序产品，其特征在于，其包括有程序指令，所述程序指令当被计算机执行时使得所述计算机执行权利要求1至11或权利要求12至15任意一项所述的方法。
  34. 一种通信装置，其特征在于，所述装置用于执行权利要求1至11或权利要求12至15任意一项所述的方法。
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