WO2024000520A1 - 一种信号测量方法及通信装置 - Google Patents

一种信号测量方法及通信装置 Download PDF

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Publication number
WO2024000520A1
WO2024000520A1 PCT/CN2022/103146 CN2022103146W WO2024000520A1 WO 2024000520 A1 WO2024000520 A1 WO 2024000520A1 CN 2022103146 W CN2022103146 W CN 2022103146W WO 2024000520 A1 WO2024000520 A1 WO 2024000520A1
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Prior art keywords
satellite
measurement
series
cell
terminal
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PCT/CN2022/103146
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English (en)
French (fr)
Inventor
罗禾佳
孟贤
王晓鲁
汪宇
王俊
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华为技术有限公司
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Priority to PCT/CN2022/103146 priority Critical patent/WO2024000520A1/zh
Publication of WO2024000520A1 publication Critical patent/WO2024000520A1/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 embodiments of the present application relate to the field of communication technology, and in particular, to a signal measurement method and a communication device.
  • the fifth generation (5th generation, 5G) new radio has entered the commercial deployment stage from the standardization stage.
  • the NR standard is researched and designed based on the characteristics of land communications, and has the characteristics of providing high-speed, high-reliability, and low-latency communications for user terminals.
  • NTN non-terrestrial networks
  • the gNB In terrestrial communications, after the user terminal (user equipment, UE) establishes a radio resource control (RRC) connection with the 5G base station (gNodeB, gNB), the gNB will issue measurement control information. When the gNB reports it regularly through the UE When the measurement report finds that there is a target cell that meets the requirements, gNB instructs the UE to perform handover to the target cell to receive services.
  • RRC radio resource control
  • the gNB instructs the UE to perform handover to the target cell to receive services.
  • the satellite in orbit A is close to the UE but is blocked in a given area, the communication quality will be reduced. Satellites in orbit B covering the same given area may not be affected by obstruction.
  • the UE still chooses to receive the satellite in orbit A. communication services, users’ business experience is poor. In addition, the overhead of regularly reporting measurement reports by the UE is high.
  • the present application provides a signal measurement method and communication device to reduce signal measurement overhead and improve the efficiency of cell switching, cell reselection, and cell access.
  • this application provides a signal measurement method, which can be executed by a terminal.
  • the terminal can be understood as a UE, a vehicle-mounted device, a terminal chip, etc. This application does not specifically limit the type of terminal here.
  • the terminal can communicate with satellites.
  • satellites can be geostationary satellites, non-geostationary satellites, artificial satellites, low-orbit satellites, medium-orbit satellites, high-orbit satellites, etc., which are not specifically limited in this application.
  • the terminal obtains measurement configuration information.
  • the measurement configuration information includes information of at least one satellite cell and a measurement time range.
  • the at least one satellite cell includes a first satellite cell.
  • the measurement time range of the first satellite cell is that the coverage range of the first satellite cell is located in the third satellite cell. All or part of the time length of a region, the first region is the region where the terminal is located; the terminal measures the signal of at least one satellite cell in the first region according to the measurement configuration information, and obtains the measurement value.
  • the terminal when it performs cell signal measurement, it uses the correlation of satellite coverage in the orbit or trajectory and performs it based on the series of satellite measurement time ranges in the measurement configuration information. There are clear constraints on the measurement objects and the start and end time range. Through this This method can reduce unnecessary switching and reselection, thereby reducing signaling interactions and improving data processing efficiency.
  • the satellites corresponding to at least one satellite cell include satellites in the first satellite series and the second satellite series, and the satellites in the same satellite series have the same orbit or the same projected trajectory on the ground.
  • the measurement start and end times of satellite cells of different satellites in the same satellite series are different.
  • the measurement configuration information also includes: the identification of the satellite cell and the measurement frequency point of at least one satellite cell.
  • the terminal measures N signal quality parameters within the measurement time range of the first satellite cell, and the measurement value of the first satellite cell includes at least one of the following:
  • the signal quality parameter with the worst signal among the N signal quality parameters is the worst signal among the N signal quality parameters
  • the signal quality parameter higher than the first quality parameter threshold corresponds to the first time length and start and end time of the time period
  • the signal quality parameter among the N signal quality parameters that is lower than the second quality parameter threshold corresponds to the second time length and start and end time of the time period
  • the ratio of the first time length to the measurement time range of the first satellite cell is the ratio of the first time length to the measurement time range of the first satellite cell
  • the ratio of the second time length to the measurement time range of the first satellite cell is the ratio of the second time length to the measurement time range of the first satellite cell.
  • the terminal can avoid short-term signal quality only and select a satellite that is closer to the terminal but may actually have signal obstruction to receive communication services, thus ensuring communication quality.
  • the signal quality parameter is one of the following: reference signal received power (RSRP), received signal strength indicator (received signal strength indicator, RSSI), reference signal received quality (reference signal received quality, RSRQ) and signal to interference plus noise ratio (signal to interference plus noise ratio, SINR).
  • RSRP reference signal received power
  • RSSI received signal strength indicator
  • RSSI received signal strength indicator
  • RSRQ reference signal received quality
  • SINR signal to interference plus noise ratio
  • the measurement configuration information also includes report configuration
  • the report configuration includes: report content configuration information, used to indicate the type of measurement values included in the measurement report; and trigger events, used to indicate the method of reporting the measurement report. Triggering conditions.
  • the triggering event includes at least one of the following:
  • the first trigger event is used to indicate that when the signal quality fluctuation of the satellite cell in the satellite series where the terminal is located is higher than the first fluctuation threshold, a measurement report is reported;
  • the second trigger event is used to indicate that when the signal quality fluctuation of the satellite cell in the satellite series where the terminal is located is lower than the second fluctuation threshold, a measurement report is reported;
  • the third trigger event is used to indicate that when the signal quality fluctuation of a satellite cell in a satellite series other than the satellite series where the terminal is located is higher than the third fluctuation threshold, a measurement report is reported;
  • the fourth trigger event is used to indicate that when the signal quality fluctuation of the satellite cell in the satellite series other than the satellite series where the terminal is located is higher than the signal quality fluctuation of the satellite cell in the first satellite series, a measurement report is reported;
  • the satellite series where the terminal is located is the satellite series to which the serving satellite cell of the terminal belongs.
  • the measurement configuration information also includes: adjacent satellite cell measurement conditions; adjacent satellite cell measurement conditions include at least one of the following:
  • Satellite cells of satellite series other than the satellite series where the terminal is located have a higher priority than satellite cells in the satellite series where the terminal is located;
  • the priority of satellite cells of satellite series other than the satellite series where the terminal is located is not higher than that of satellite cells in the satellite series where the terminal is located, and the signal quality fluctuation of the satellite cells in the satellite series where the terminal is located is higher than the fourth fluctuation threshold;
  • the satellite series where the terminal is located is the satellite series to which the serving satellite cell of the terminal belongs.
  • the measurement configuration information also includes: satellite cell reselection conditions, and the reselection conditions include at least one of the following:
  • the signal quality of the satellite cell of the satellite series other than the satellite series where the terminal is located is not higher than the fourth fluctuation threshold
  • the signal quality of the satellite cell of the satellite series other than the satellite series where the terminal is located is not higher than the signal quality of the satellite cell of the satellite series where the terminal is located.
  • the measurement configuration information further includes: a series identifier of the first satellite series and a series identifier of the second satellite series.
  • the satellite cells of the satellites in the first satellite series constitute a super cell; the satellite cells of the satellites in the second satellite series constitute a super cell.
  • the terminal receives measurement configuration information from the network device.
  • the terminal if the terminal is in the radio resource control RRC connected state, the terminal reports the measurement value; or if the terminal is in the RRC non-connected state, the terminal determines whether to start signal measurement of the satellite cell or determine whether to perform Satellite cell reselection.
  • this application provides a signal measurement method, which can be performed through network equipment.
  • the network equipment can be understood as satellites, transmission reception points (transmission reception points, TRPs), etc. This application is not specifically limited here.
  • the network device determines measurement configuration information.
  • the measurement configuration information includes information on at least one satellite cell and a measurement time range.
  • the at least one satellite cell includes a first satellite cell.
  • the measurement time range of the first satellite cell is the coverage area of the first satellite cell. All or part of the time length of the first area, which is the area where the terminal is located; the network device sends measurement configuration information.
  • the satellites corresponding to at least one satellite cell include satellites in the first satellite series and the second satellite series, and the satellites in the same satellite series have the same orbit or the same projected trajectory on the ground.
  • the measurement start and end times of satellite cells of different satellites in the same satellite series are different.
  • the measurement configuration information also includes report configuration
  • the report configuration includes:
  • Report content configuration information used to indicate the type of measurement values included in the measurement report
  • Trigger events are used to indicate the trigger conditions for reporting measurement reports.
  • the triggering event includes at least one of the following:
  • the first trigger event is used to indicate that when the signal quality fluctuation of the satellite cell in the satellite series where the terminal is located is higher than the first fluctuation threshold, a measurement report is reported;
  • the second trigger event is used to indicate that when the signal quality fluctuation of the satellite cell in the satellite series where the terminal is located is lower than the second fluctuation threshold, a measurement report is reported;
  • the third trigger event is used to indicate that when the signal quality fluctuation of a satellite cell in a satellite series other than the satellite series where the terminal is located is higher than the third fluctuation threshold, a measurement report is reported;
  • the fourth trigger event is used to indicate that when the signal quality fluctuation of the satellite cell in the satellite series other than the satellite series where the terminal is located is higher than the signal quality fluctuation of the satellite cell in the satellite series where the terminal is located, a measurement report is reported;
  • the satellite series where the terminal is located is the satellite series to which the serving satellite cell of the terminal belongs.
  • the network device receives a measurement report reported by the terminal according to the measurement configuration information.
  • the measurement report includes the measurement value obtained by the terminal measuring the cell signal of at least one satellite in the first area according to the measurement configuration information. ;
  • the network equipment makes a satellite cell switching decision for the terminal based on the measurement report.
  • the terminal measures N signal quality parameters within the measurement time range of the first satellite cell, and the measurement value of the first satellite cell includes at least one of the following:
  • the signal quality parameter with the worst signal among the N signal quality parameters is the worst signal among the N signal quality parameters
  • the signal quality parameter higher than the first quality parameter threshold corresponds to the first time length and start and end time of the time period
  • the signal quality parameter among the N signal quality parameters that is lower than the second quality parameter threshold corresponds to the second time length and start and end time of the time period
  • the ratio of the first time length to the measurement time range of the first satellite cell is the ratio of the first time length to the measurement time range of the first satellite cell
  • the ratio of the second time length to the measurement time range of the first satellite cell is the ratio of the second time length to the measurement time range of the first satellite cell.
  • the signal quality parameter is one of the following: RSRP, RSSI, RSRQ, and SINR.
  • the measurement configuration information also includes: adjacent satellite cell measurement conditions;
  • the adjacent satellite cell measurement conditions include at least one of the following:
  • Satellite cells of satellite series other than the satellite series where the terminal is located have a higher priority than satellite cells in the satellite series where the terminal is located;
  • the priority of satellite cells of satellite series other than the satellite series where the terminal is located is not higher than that of satellite cells in the satellite series where the terminal is located, and the signal quality fluctuation of the satellite cells in the satellite series where the terminal is located is higher than the fourth fluctuation threshold;
  • the satellite series where the terminal is located is the satellite series to which the serving satellite cell of the terminal belongs.
  • the measurement configuration information also includes: satellite cell reselection conditions, and the reselection conditions include at least one of the following:
  • the signal quality of the satellite cell of the satellite series other than the satellite series where the terminal is located is not higher than the fourth fluctuation threshold
  • the signal quality of the satellite cell of the satellite series other than the satellite series where the terminal is located is not higher than the signal quality of the satellite cell of the satellite series where the terminal is located.
  • the measurement configuration information further includes: a series identifier of the first satellite series and a series identifier of the second satellite series.
  • the present application provides a communication device, which may be a terminal (such as the terminal in the first aspect or the terminal in the second aspect) or a chip provided inside the terminal, or may be a network device (such as The network device in the first aspect, the network device in the second aspect) or a chip provided inside the network device.
  • the communication device has the function of implementing any one of the above first to second aspects.
  • the communication device includes a module or unit corresponding to the steps involved in any one of the above first to second aspects, or Means, the functions or units or means can be implemented by software, or by hardware, or by hardware executing corresponding software.
  • the communication device includes a processing unit and a transceiver unit, where the transceiver unit can be used to send and receive signals to achieve communication between the communication device and other devices.
  • the transceiver unit is used to send measurements. Configuration information; the processing unit can be used to perform some internal operations of the communication device.
  • the transceiver unit may be called an input-output unit, a communication unit, etc., the transceiver unit may be a transceiver, and the processing unit may be a processor.
  • the transceiver unit may be an input-output interface, an input-output circuit, or an input-output pin, etc., and may also be called an interface, a communication interface, or an interface circuit, etc.;
  • the processing unit may be a processor, a processing circuit or a logic circuit, etc.
  • the communication device includes a processor and may also include a transceiver, the transceiver is used to send and receive signals, and the processor executes program instructions to complete the above first to second aspects. method in any possible design or implementation.
  • the communication device may further include one or more memories, the memory being used to couple with the processor, and the memory may store necessary computer programs to implement the functions involved in any one of the above first to second aspects. or instructions.
  • the processor can execute the computer program or instructions stored in the memory. When the computer program or instructions are executed, the communication device implements any of the possible designs or implementations of the first to second aspects. method.
  • the communication device includes a processor, which may be coupled to a memory.
  • the memory may store necessary computer programs or instructions to implement the functions involved in any one of the above-mentioned first to second aspects.
  • the processor can execute the computer program or instructions stored in the memory. When the computer program or instructions are executed, the communication device implements any of the possible designs or implementations of the first to second aspects. method.
  • the communication device includes a processor and an interface circuit, wherein the processor is configured to communicate with other devices through the interface circuit and execute any possible design of the above first to second aspects or Methods in the implementation.
  • the processor can be implemented by hardware or software.
  • the processor can be a logic circuit, an integrated circuit, etc.; when implemented by software, the processor can be implemented by software.
  • the processor may be a general-purpose processor implemented by reading software code stored in memory.
  • the above processors may be one or more, and the memories may be one or more.
  • the memory can be integrated with the processor, or the memory can be provided separately from the processor. During the specific implementation process, the memory and the processor can be integrated on the same chip, or they can be respectively provided on different chips. The embodiments of this application do not limit the type of memory and the arrangement method of the memory and the processor.
  • the present application provides a communication system, which includes the terminals, network equipment, and satellites in the above-mentioned first to second aspects.
  • the present application provides a chip system, which includes a processor and may also include a memory, for implementing the method described in any of the possible designs of the first aspect to the second aspect.
  • the chip system can be composed of chips or include chips and other discrete devices.
  • the present application also provides a computer-readable storage medium.
  • Computer-readable instructions are stored in the computer-readable storage medium.
  • the computer-readable instructions When the computer-readable instructions are run on a computer, the computer executes the steps from the first aspect to the third aspect. Either of two possible design approaches.
  • the present application provides a computer program product containing instructions that, when run on a computer, cause the computer to execute the methods of the embodiments of the first aspect to the second aspect.
  • Figure 1 is a schematic diagram of a transparent forwarding architecture provided by an embodiment of the present application.
  • Figure 2 is a schematic diagram of a regeneration architecture provided by an embodiment of the present application.
  • Figure 3 is a schematic diagram of a communication scenario provided by an embodiment of the present application.
  • Figure 4 is a schematic diagram of another communication scenario provided by an embodiment of the present application.
  • Figure 5A is a schematic diagram of a ground co-orbit satellite
  • Figure 5B is a schematic diagram of the movement of ground co-orbit satellites
  • Figure 6 is a schematic diagram of a terminal communication scenario
  • Figure 7 is a schematic flow chart of a signal measurement method provided by an embodiment of the present application.
  • Figure 8 is a schematic diagram of multiple series of satellites of the service terminal
  • Figure 9A is a schematic diagram of the satellite series of traditional orbiting satellites
  • Figure 9B is a schematic diagram of a satellite series of ground co-orbit satellites
  • Figure 10 shows a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • Figure 11 shows a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • Figure 12 shows a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • NTN systems may include satellite systems. According to satellite altitude, that is, satellite orbit altitude, satellite systems can be divided into highly elliptical orbit (HEO) satellites, GEO satellites, medium earth orbit (MEO) satellites and LEO satellites.
  • the NTN system can also include aerial network equipment such as a high altitude platform station (HAPS) communication system.
  • HAPS high altitude platform station
  • the NTN network includes a first network device, a second network device and a terminal.
  • the first network device may be a satellite, for example, it may be a HEO satellite, a GEO satellite, a MEO satellite, a LEO satellite, or a HAPS, etc., and is not limited here.
  • the second network device may be a gateway station (also called a ground station, an earth station, or a gateway station), which may be used to connect the second network device to the core network.
  • the communication mode of the first network device is a transparent transmission mode (transparent), that is, the first network device serves as a base station for wireless communication, and the second network device can serve as a relay for the first network device and can transparently transmit the second network device.
  • the second network device can access the core network through the base station and then access the data network.
  • the communication mode of the first network device may also be a regenerative mode.
  • the communication mode of the first network device is the regeneration mode, that is, the first network device can serve as a base station for wireless communication.
  • the first network device can use artificial earth satellites and high-altitude aircraft as base stations for wireless communication, for example As an evolved base station (evolved Node B, eNB), gNB, etc.
  • the second network device can transparently transmit signaling between the first network device and the core network.
  • FIG. 1 and FIG. 2 only show one first network device and one second network device.
  • the architecture of multiple first network devices and/or one second network device may be adopted as needed.
  • Each first network device may provide services to one or more terminals, each second network device may correspond to one or more first network devices, and each first network device may correspond to one or more third 2.
  • Network equipment is not specifically limited in this application.
  • the NTN communication system provides seamless coverage for terminal equipment by deploying all or part of the functions of access network equipment on NTN equipment (such as high-altitude platforms or satellites). Since non-terrestrial equipment is less affected by natural disasters, it can improve Communication system reliability.
  • Figure 3 illustrates a possible network architecture.
  • the architecture of the NTN device can be a transparent transmission mode.
  • Figure 4 exemplarily shows another possible network architecture.
  • the architecture of the NTN device can be in regeneration mode.
  • NTN equipment and access network equipment on the ground can be interconnected through a common core network.
  • NTN equipment and access network equipment on the ground can also achieve higher timeliness of assistance and interconnection through interfaces defined between access network equipment.
  • the interface between access network equipment can be called the Xn interface.
  • Access The interface between the network equipment and the core network can be called the NG interface. Interoperability and collaboration can be achieved between NTN equipment and access network equipment on the ground through the Xn interface or NG interface.
  • the link between the NTN device and the terminal device may be called a service link, and the link between the NTN device and the gateway device may be called a feeder link.
  • the network equipment may be an NTN equipment having all or part of the functions of the access network equipment, or it may also be an access network equipment on the ground.
  • Access network equipment is an entity on the network side that is used to transmit or receive signals, such as gNB.
  • Access network devices may be devices used to communicate with mobile devices.
  • the access network device can be an AP in wireless local area networks (WLAN), an eNB in long term evolution (LTE), or a relay station or access point or integrated access backhaul. access and backhaul (IAB), or in-vehicle devices, wearable devices, and access network equipment in future 5G networks or access network equipment in future evolved public land mobile networks (PLMN) networks, or NR gNB etc. in the system.
  • WLAN wireless local area networks
  • LTE long term evolution
  • IAB access and backhaul
  • PLMN public land mobile networks
  • the access network device provides services for the cell, and the terminal device communicates with the access network device through the transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell.
  • the access network device in the embodiment of this application may refer to a centralized unit (central unit, CU) or a distributed unit (distributed unit, DU).
  • the access network equipment may also be composed of CU and DU.
  • the CU and the DU may be physically separated or deployed together, which is not specifically limited in the embodiments of this application.
  • One CU can be connected to one DU, or multiple DUs can share one CU, which can save costs and facilitate network expansion.
  • CU and DU can be segmented according to the protocol stack.
  • RRC service data adaptation protocol
  • PDCP packet data convergence protocol
  • RLC radio link control
  • MAC media access control
  • DU physical layer
  • the above-mentioned protocol stack segmentation method is not completely limited in the embodiments of this application, and other segmentation methods are also possible.
  • CU and DU are connected through the F1 interface.
  • CU represents gNB and is connected to the core network through the Ng interface.
  • the access network device in the embodiment of this application may also refer to a centralized unit control plane (CU-CP) node or a centralized unit user plane (CU-UP) node, or the access network device may also be a CU-CP and CU-UP.
  • CU-CP is responsible for the control plane function, mainly including RRC and PDCP-C.
  • PDCP-C is mainly responsible for encryption and decryption of control plane data, integrity protection, data transmission, etc.
  • CU-UP is responsible for user plane functions, mainly including SDAP and PDCP-U.
  • SDAP is mainly responsible for processing core network data and mapping flows to bearers.
  • PDCP-U is mainly responsible for data plane encryption and decryption, integrity protection, header compression, serial number maintenance, data transmission, etc.
  • CU-CP and CU-UP are connected through the E1 interface.
  • CU-CP represents gNB and is connected to the core network through the Ng interface.
  • CU-UP is connected to DU through F1-U (user plane).
  • F1-C control plane
  • F1-U user plane
  • PDCP-C is also in CU-UP.
  • the access network device mentioned in the embodiment of this application may be a device including CU, or DU, or a device including CU and DU, or a control plane CU node (CU-CP node) and a user plane CU node (CU-UP node). And the equipment of DU node.
  • the access network equipment may be other devices that provide wireless communication functions for terminal equipment.
  • the embodiments of this application do not limit the specific technology and specific equipment form used by the access network equipment. For convenience of description, in the embodiments of this application, the device that provides wireless communication functions for terminal equipment is called access network equipment.
  • the terminal device may be a device capable of receiving scheduling and instruction information from the access network device (or NTN device).
  • the terminal device may be a device that provides voice and/or data connectivity to the user, or a handheld device with a wireless connection function, or Other processing equipment connected to the wireless modem.
  • the terminal device can communicate with one or more core networks or the Internet via a wireless access network (such as a radio access network, RAN).
  • the terminal device can be a mobile terminal device, such as a mobile phone (also known as a "cellular" phone, mobile phone). (mobile phone)), computers and data cards, for example, may be portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile devices that exchange voice and/or data with the wireless access network.
  • terminal equipment can also be called a system, subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile station), mobile station (MS), remote station (remote station), access point (access point, AP), remote terminal equipment (remote terminal), access terminal equipment (access terminal), user terminal equipment (user terminal), user agent (user agent), subscriber station (subscriber station, SS), user terminal equipment ( customer premises equipment (CPE), terminal, UE, mobile terminal (MT), etc.
  • subscriber unit subscriber station
  • MS mobile station
  • remote station remote station
  • access point access point
  • AP remote terminal equipment
  • access terminal equipment access terminal
  • user terminal user terminal
  • user agent user agent
  • subscriber station subscriber station
  • SS user terminal equipment
  • CPE customer premises equipment
  • the terminal device may also be a wearable device and a next-generation communication system, for example, a terminal device in a 5G network or a terminal device in a future evolved PLMN network, a terminal device in an NR communication system, etc.
  • the terminal device may also be a terminal that communicates with the NTN device.
  • the embodiments of the present application may also be applied to other future-oriented communication technologies, such as the sixth generation mobile communication network (6G).
  • 6G sixth generation mobile communication network
  • the network architecture and business scenarios described in this application are for the purpose of explaining the technical solutions of this application more clearly and do not constitute a limitation on the technical solutions provided by this application. Persons of ordinary skill in the art will know that with the evolution of network architecture and new business scenarios, The technical solution provided in this application is also applicable to similar technical problems.
  • cell handover/cell reselection is mainly to ensure that the terminal equipment receives services in a cell with better signal quality. However, when the terminal equipment is in different states, the operation of the terminal is different. The cell handover/cell reselection is divided into different situations. Neighborhood re-election is introduced:
  • gNB After the UE establishes an RRC connection with gNB, gNB will deliver relevant measurement configuration information to configure the UE's measurement behavior. When gNB finds a target cell that meets the requirements through the UE's measurement report, gNB will instruct the UE to perform cell handover.
  • the main switching process is:
  • Step 1 gNB sends the measurement configuration information to the UE through an RRC reconfiguration (RRCReconfiguration) message.
  • RRCReconfiguration RRC reconfiguration
  • Step 2 The UE measures the cell signal according to the measurement configuration information and obtains the cell measurement result.
  • Step 3 The UE reports the measurement results to the gNB through the measurement report.
  • Step 4 gNB determines whether there is a suitable new serving cell based on the measurement report.
  • Step 5 gNB determines the new serving cell and instructs the UE to perform cell handover.
  • the measurement configuration information includes at least one or more of the following:
  • Measurement objects are objects that the UE needs to measure, including synchronization signal/physical broadcast channel block (SSB)/channel state information reference signal (CSI- RS) frequency, SSB/CSI-RS subcarrier spacing, SSB-based measurement timing configuration (SMTC), whitelist cells and blacklist cells.
  • SSB synchronization signal/physical broadcast channel block
  • CSI- RS channel state information reference signal
  • SMTC SSB-based measurement timing configuration
  • whitelist cells blacklist cells.
  • a measurement object refers to a single carrier frequency
  • NR the essence of measurement is to measure the reference signals of the serving cell and neighboring cells, so a measurement object refers to the time-frequency of the reference signal to be measured location and subcarrier spacing.
  • the measurement object of NR indicates information used for SSB-based measurement or CSI-RS-based measurement.
  • Measurement gaps The time period for the UE to leave the current frequency point and measure at other frequency points. It is only involved in inter-frequency measurement and inter-system measurement.
  • Reporting configurations are the standards that trigger reporting of measurement reports and the format of the measurement reports. According to the type, it is divided into event-triggered reporting and period-triggered reporting. Among them, the event trigger reporting configuration includes various event categories and threshold values, the duration to meet the trigger conditions, the measurement quantities that need to be reported, and the reference signal type, etc., as shown in Table 1 below.
  • Ms represents the measurement result of the serving cell
  • Mn represents the measurement result of the neighboring cell
  • Hys represents the amplitude hysteresis of the measurement result.
  • TimeToTrig represents the length of time that the event entry condition continues to be met, that is, time lag.
  • Thresh, Thresh1, Thresh2 represent threshold values.
  • Ofs and Ofn represent the frequency offsets of the serving cell and neighboring cells respectively.
  • Ocs and Ocn respectively represent the cell offset CIO of the serving cell and neighboring cell.
  • Off represents the offset of the measurement result.
  • Triggering quantity is the strategy for triggering event reporting.
  • Measurement identities combine measurement objects with report configurations as a collection.
  • Measurement report reporting methods one-time reporting triggered by events, periodic reporting triggered by events, and periodic reporting.
  • an event-triggered reporting indicates that when the entry threshold of a certain measurement event is met and continues for a period of time (time to trigger), the sending of the measurement report will be triggered. After the measurement report is sent once, the process ends.
  • Event-triggered periodic reporting indicates that when the entry threshold of a certain measurement event is met and continues for a period of time (time to trigger), the sending of the measurement report will be triggered.
  • the timer (reportinterval) between multiple measurements and the counter of the number of measurements (reportamount) will be started. The process will not end until the number of reports reaches the required number. If the counter is infinite, it will be reported periodically. .
  • Periodic reporting instructs the UE to send measurement reports according to the specified reporting interval (reportinterval).
  • Trigger volume It is the parameter of the strategy that triggers event reporting, including one or more of the following:
  • RSRP reflects the received strength of the reference signal.
  • RSSI Reflects the total signal strength of the current signal.
  • RSRQ reflects the signal-to-noise ratio and interference level of the current signal quality, approximately the ratio of RSRP to RSSI.
  • SINR reflects the signal-to-interference ratio of the current signal and is an important indicator for measuring UE performance.
  • the measurement events used in the handover strategy are mainly SSB-based RSRP and SSB-based RSRQ as trigger quantities, that is, the trigger quantities corresponding to the measurement events are RSRP and RSRQ.
  • RSRP trigger indicates that the measurement triggering and stopping processes are based on RSRP.
  • gNB only delivers event measurement control of RSRP, and the UE performs measurements based on the measurement control information.
  • the UE determines that the RSRP of a certain measurement frequency point (or a certain measurement cell) meets the entry conditions of the corresponding event, the UE reports a measurement report.
  • RSRP and RSRQ are triggered at the same time: It means that the measurement triggering and stopping processes are based on RSRP and RSRQ, and the RSRP-based process and the RSRQ-based process do not affect each other and are carried out independently.
  • gNB delivers event measurement control for RSRP and RSRQ at the same time, and the UE performs measurements based on the measurement control information.
  • the UE determines that the RSRP or RSRQ of a certain measurement frequency point (or a certain measurement cell) meets the event entry conditions, the UE reports a measurement report.
  • RSRP triggers RSRQ filtering Indicates that the measurement triggering and stopping processes are based on RSRP, but the measurement report will contain both RSRP and RSRQ measurement results, and neighbor cell filtering is performed based on the RSRQ measurement results.
  • gNB delivers event measurement control of RSRP and RSRQ at the same time, and the UE performs measurements based on the measurement control information.
  • the UE determines that the RSRP of a certain measurement frequency point (or a certain measurement cell) meets the entry conditions of the corresponding event, the UE reports a measurement report, and the The measurement report contains the measurement results of both RSRP and RSRQ.
  • gNB After gNB receives the measurement report, gNB generates a candidate cell list or a candidate frequency point list based on the RSRP measurement results, and filters the candidate cells based on the RSRQ measurement results.
  • Typical aperiodic measurement feedback the UE performs measurements on one or more given reference signals based on the gNB's measurement configuration information. If the measured results are found to meet a certain trigger condition (for example, higher than a threshold), a report is triggered. event to feed back the measurement results to gNB.
  • the gNB comprehensively decides whether to handover the UE or performs corresponding resource scheduling based on the feedback from the UE.
  • the terminal device is in a non-connected state
  • the overall cell reselection process includes three stages: starting neighbor cell measurement, reselection evaluation and judgment, and cell reselection.
  • Measurement configuration information at least includes:
  • the UE needs to meet certain conditions to start neighbor cell measurement. Based on this condition, a decision is made on the current serving cell. Only after the decision is passed, the UE starts neighbor cell measurement. This is done to save energy and power for the UE by limiting measurement actions. After the UE starts neighbor cell measurement, it will calculate the R value (R criterion variable, reflecting the signal quality level of the cell) of the current serving cell and neighboring cells respectively, and queue up for cell reselection decision. Whether to start neighbor cell measurement mainly considers two factors: cell reselection priority and signal quality of the current serving cell. For the R value R s of the serving cell and the R value R n of the neighboring cell, please refer to the relevant description in TS38.304 of the 3GPP protocol, which will not be explained here.
  • the UE will unconditionally start neighbor cell measurement.
  • the UE will measure the signal quality of the current serving cell and compare it with the signal quality standard issued by the network.
  • the UE After the neighboring cell measurement is completed, the UE begins to evaluate and decide whether to perform cell reselection to the neighboring cell. Neighboring cells with different priorities have different decision methods. Taking the same priority as an example, the reselection of cells with the same priority is based on the R criterion: calculate the cell signal quality level of each neighboring cell and the current serving cell; then sort according to the cell signal quality level, and select the cell with the highest signal quality level or close to the maximum cells; finally, among these cells, the cell with the largest number of beams whose beam signal quality meets the requirements is selected as the best cell, and this cell is said to meet the cell reselection criteria. If the selected best cell continues to meet the cell reselection criteria during TreselectionNR and the UE stays in the current serving cell for more than 1s, the UE starts cell reselection to the neighboring cell.
  • the UE After completing neighbor cell measurement and confirming that there is a new cell that meets the cell reselection conditions, the UE will start trying to camp on the new cell.
  • the UE searches for the target cell.
  • the UE receives the system message of the target cell. If there is no access restriction (such as judging whether the target cell is barred or reserved through the system message of the target cell), it will camp on the target cell, that is, reselection. to the target neighborhood. Otherwise, the UE still camps on the current serving cell.
  • Ground co-orbit satellite chain includes a group of satellites with the same orbital inclination, but each satellite is in a discrete orbit and projects the same trajectory on the ground.
  • satellite 1 satellite 2 and satellite 3 are a group of satellites with the same orbital inclination, and their projected trajectories on the ground are all trajectory 1.
  • all satellites in the satellite chain need to have the same orbital inclination.
  • the right ascension of the ascending node (RAAN) of any two satellites must be different from each other.
  • ⁇ E is the angular velocity of the earth's rotation
  • n 0 is the angular velocity of the satellite motion
  • n 0 is the angular velocity of the satellite motion
  • n 0 is the angular velocity of the satellite motion
  • ⁇ RAAN is the ascending node right ascension difference between satellite orbits
  • ⁇ AoL is the ascending angular distance difference between satellites.
  • satellite S1 and satellite S2 are two satellites on the ground co-orbit satellite chain. Satellite S1 and satellite S2 are both in independent orbits, and the inclination angles I of the orbits are the same.
  • satellite S1 passes the equator from south to north, and its ground projection is exactly at UE.
  • Satellite S2 is south of the equator and west of S1; due to the rotation of the earth, satellite S2 also passes the same point on the equator at time t2. Its ground projection is also located exactly at the UE (assuming that the UE is stationary relative to the earth).
  • satellite S1 and satellite S2 are operating in different orbits, their motion trajectories on the ground are the same.
  • Ground common orbit constellation a constellation composed of one or more ground common orbit satellite chains.
  • Hypercell In existing ground communication networks, multiple base stations in tunnels or high-speed railways are often regarded as multiple TRPs in a cell, and multiple TRPs are configured into one logical cell. Each TRP The same physical cell identity document (PCI), global cell identity document (CGI), frequency and bandwidth are used. Since each TRP uses the same PCI and CGI, the UE does not perceive the existence of multiple TRPs when moving between TRPs, so there is no need to switch cells.
  • PCI physical cell identity document
  • CGI global cell identity document
  • a typical hypercell implementation is as follows:
  • Each TRP uses the same PCI, CGI, frequency and bandwidth. Since each TRP uses the same PCI and CGI, the UE does not perceive the existence of multiple TRPs when moving between TRPs, so there is no need to switch cells.
  • the existing method of cell switching by terminal equipment in the connected state can be used in the NTN system.
  • decisions based on short or short-term measurement results may not necessarily be made over a longer period of time.
  • a suitable serving cell that is, a cell under satellite coverage
  • the UE can transmit data with satellites in two different orbits.
  • the satellites in each orbit can be regarded as a satellite series, in which the satellites move in the direction of the arrow and cover the UE sequentially.
  • the satellite of series #2 is closer to the UE than the satellite of series #1, but there is an obstruction between satellite 3 and the UE due to terrain reasons.
  • the signal perceived by the UE changes with time as shown in Figure 6.
  • the time slice series # perceived by the UE The satellite signal changes over time in 1 are shown in Figure 6.
  • the existing measurement and reporting mechanism lacks long-term granular measurement and reporting. The UE will still choose to connect or stay on the satellite in Series #2, which cannot effectively utilize the strong predictability characteristics of the above-mentioned satellite scenarios, resulting in an insufficient user experience.
  • the measurement reporting time range is not specifically configured for satellite coverage.
  • triggering reporting based on periodicity can achieve the effect of obtaining long-term signal quality, but frequent reporting is very expensive. For long-term reporting that only needs to obtain measurement statistical characteristics, frequent reporting causes too much overhead.
  • the current reselection mechanism lacks a mechanism for making optimal decisions using the coverage information of previous satellites, and it is easy to make decisions based only on short-term measurements, resulting in Unnecessary back-and-forth reselection.
  • this application provides a signal measurement method that reduces unnecessary switching and reselection under the condition that there are clear constraints on the measurement object and the start and end time range, thereby reducing signaling overhead and ensuring signal communication quality.
  • this method can be applied to cell handover, reselection and access scenarios.
  • this method is applied to the communication architecture shown in Figures 1 and 2 as an example.
  • Data interaction between a terminal and a first network device (the first network device in Figures 1 and 2, or may also be called a satellite base station) can be used as an example for illustration.
  • Figure 7 takes the data interaction between the terminal and the first network device as an example for illustration.
  • Step 701 The terminal obtains measurement configuration information.
  • the measurement configuration information includes information on at least one satellite cell and a measurement time range.
  • the at least one satellite cell includes the first satellite cell, and the measurement time range of the first satellite cell is the coverage of the first satellite cell.
  • the range is all or part of the time length of the first area, which is the area where the terminal is located.
  • the measurement configuration information may come from the first network device. If the terminal has accessed the network, the first network device can obtain the location information of the terminal and know which satellites can cover the area where the terminal is located. Then the first network device can send the information of these satellite cells and the measurement time range of the satellite cells. To the terminal so that the terminal can measure the signal of the satellite cell. Of course, there is also a situation where the terminal is not connected to the network. There may be multiple first network devices that can deliver the information of the satellite cells they serve and the measurement time range of the satellite cells through reference signals. If the terminal can receive the reference signal, then Measurement configuration information can be obtained.
  • step 700 may be performed, and the first network device sends measurement configuration information.
  • the area where the terminal is located may be covered by multiple satellite cells, so the measurement configuration information may include information on multiple satellite cells.
  • the information on different satellite cells may be indicated by different cell identifiers, such as PCI , CGI, etc.
  • the above measurement configuration information can be updated regularly, such as every day, or once every 10 hours, etc., or the update can be triggered based on changes in the terminal's position, such as when the terminal is in position
  • the measurement configuration information obtained by 1 located in the southern hemisphere
  • the measurement configuration information obtained by the terminal at location 2 located in the northern hemisphere
  • the satellites corresponding to at least one satellite cell include satellites in the first satellite series and the second satellite series, wherein the satellites in the same satellite series have the same orbit (that is, are located in the same orbit) or are projected on the ground. Satellites with the same trajectory (that is, satellites in the ground co-orbit satellite chain).
  • the measurement configuration information may also include a series identifier of the first satellite series and a series identifier of the second satellite series. As shown in Figure 8, there are four series of satellites surrounding the terminal.
  • the measurement configuration information includes the four series of satellite cell information and the measurement time range. The terminal needs to measure the signal quality of the four series of satellite cells.
  • each series of satellites can be determined through the orbit information (including altitude, inclination angle, ascending node angle), and then the angular offset range compared to the agreed reference point on the orbit (such as the current satellite position and The angle of the ascending node with respect to the center of the earth) describes the range within the orbit.
  • the area where a certain series of satellites is located is the area between PH1 and PH2.
  • the first network device can inform the terminal of a wider range of satellite ephemeris information, and then inform the selection criteria of the series of satellites.
  • the terminal can calculate the real-time positions of the satellites in the orbits corresponding to the series at a given time, and then compare whether these satellites are within the specific area required by the series of satellites. If so, it means that the satellite belongs to the specific satellite series.
  • the ascending node height of satellite series 1 is RAAN1 and the area is [PH11, PH12].
  • the satellite cell measurement time range of satellite series 1 is t1s (measurement start time) - t1e (measurement end time).
  • Table 2 is for traditional orbit satellites, but different satellite series may include multiple satellites, and different satellite cells can be indicated by different cell identifiers, such as PCI, CGI, etc., and the same
  • the measurement start and end times of different satellite cells in the series are different.
  • the measurement frequencies corresponding to different satellite cells may be the same or different. For example, the measurement frequencies of adjacent satellite cells are different, and the measurement frequencies of non-adjacent satellite cells are different. Frequency points can be configured the same.
  • the measurement configuration information can be shown in Table 3 below. It is assumed that satellite series 1 is the satellite series of the current service terminal. This satellite series includes multiple satellite cells. Different satellite cells are indicated by different PCIs. For example, the PCI is ID#1a.
  • the measurement time range of the satellite cell is t1a-s (measurement start time) ⁇ t1a-e (measurement end time), and the measurement frequency points are 1a and SCS1a.
  • the description here is only illustrative and does not specifically limit the identity of the satellite cell, the measurement time range, and the measurement frequency point.
  • the measurement configuration information may also include other information, which is not shown here one by one.
  • the orbit of each series of satellites can be used to determine the orbit of the satellite, and then compared with the orbit information
  • the offset range from an agreed reference point an intersection between the orbit and the equator, or the starting RAAN and starting AoL describes the range within the orbit.
  • the area where a certain series of satellites is located is the area between PH11 and PH12.
  • the first network device can inform the terminal of a wider range of satellite ephemeris information, and then inform the selection criteria of the series of satellites.
  • the terminal can calculate the real-time positions of the satellites in the orbits corresponding to the series at a given time, and then compare whether these satellites are within the specific area required by the series of satellites. If so, it means that the satellite belongs to the specific satellite series.
  • the starting RAAN of satellite series 2 is RANN1, the starting AoL is AoL1, and the area is [PH21, PH22].
  • the satellite cell measurement time range of satellite series 2 is t2s (measurement start time)-t2e (measurement end time) .
  • Table 4 is for satellites in the ground co-orbit satellite chain, but different satellite series may include multiple satellites, and different satellite cells can be indicated by different cell identifiers, such as PCI, CGI, etc., and the measurement start and end times of different satellite cells in the same series are different, and the measurement frequencies corresponding to different satellite cells may be the same or different. For example, the measurement frequencies of adjacent satellite cells are different and inconsistent. The measurement frequencies of neighboring satellite cells can be configured with the same frequency.
  • the measurement configuration information can be shown in Table 5 below. It is assumed that satellite series 1 is the satellite series of the current service terminal. This satellite series includes multiple satellite cells. Different satellite cells are indicated by different PCIs. For example, the PCI is ID#1a.
  • the measurement time range of the satellite cell is t1a-s (measurement start time) ⁇ t1a-e (measurement end time), and the measurement frequency points are frequency point 1 and SCS1.
  • the description here is only illustrative and does not specifically limit the identity of the satellite cell, the measurement time range, and the measurement frequency point.
  • the time offset for configuring the measurement time range of each satellite cell in Table 3 is the same, which can reduce the instruction overhead.
  • the time offset for configuring the measurement time range of each satellite cell is passed through ⁇ and ⁇ represent, ⁇ and ⁇ may be the same or different, and are not specifically limited in this application.
  • Step 702 The terminal measures the signal of at least one satellite cell in the first area according to the measurement configuration information to obtain a measurement value, where the measurement value is used to indicate the signal quality fluctuation of at least one satellite cell within the measurement time range.
  • the measured values include the measured values of the first satellite series and the measured values of the second satellite series.
  • the terminal will measure the measurement values of the satellite cells of the satellites in the first satellite series and the satellite cells of the satellites in the second satellite series.
  • the terminal will measure the satellite cells according to the multiple satellite series.
  • the signals of satellite cells of multiple satellite series are measured, and then the measurement values of different satellite series are compared to determine which satellite series of satellite cells have larger signal quality fluctuations. Since the measured values of different satellite series are similar, here we only assume that the terminal measured N signal quality parameters within the measurement time range of the first satellite cell.
  • the measured values of the first satellite cell include at least one of the following:
  • Measured value 1 The signal quality parameter with the worst signal among the N signal quality parameters.
  • signal quality parameters are usually indicated by one of the following: RSRP, RSSI, RSRQ and SINR, or variations of the above parameters, such as the trigger amount introduced in 1.1) above, RSRP triggers RSRQ filtering, etc.
  • RSRP Signal quality parameters
  • one satellite may cover multiple satellite cells. This article simplifies the description here and only takes one satellite cell under one satellite as an example. However, in actual application, the number of cells covered by a satellite is not limited.
  • the signal quality parameter with the worst signal among the N signal quality parameters is used as the measured value.
  • the signal quality parameter is RSRP
  • the first satellite series includes 3 satellites. They are satellite 1, satellite 2 and satellite 3 respectively. Satellite 1 covers satellite cell 1, satellite 2 covers satellite cell 2, and satellite 3 covers satellite cell 3.
  • the measurement time range of satellite cell 1 is from time 1 to time 2, the measurement time range of satellite cell 2 is from time 3 to time 4, and the measurement time range of satellite cell 3 is from time 5 to time 6. From time 1 to time 2, the terminal measured the worst RSRP of satellite cell 1 as X1. From time 3 to time 4, the terminal measured the worst RSRP of satellite cell 2 as X2.
  • the terminal measured the worst RSRP of satellite cell 2.
  • the worst RSRP of satellite cell 3 is X3, where X1 is smaller than X2 and X2 is smaller than X3. Therefore, the measured value 1 is the worst RSRP of satellite cell 3, which is X1.
  • the measurement configuration information also includes the information of the satellite cell in a second satellite series and the measurement time range.
  • the second satellite series includes two satellites, satellite A and satellite B. Satellite A covers satellite cell A1, and satellite B covers satellite cell. B1.
  • the measurement time range of satellite cell A1 is from time 1 to time 2, and the measurement time range of satellite cell B1 is from time 7 to time 8. From time 1 to time 2, the terminal measured the worst RSRP of satellite cell A1 as Y1. From time 7 to time 8, the terminal measured the worst RSRP of satellite cell B1 as Y2.
  • Y1 is less than Y2, so the measurement value 1 is satellite The worst RSRP of A's satellite cell A1, that is, Y1.
  • X1 is smaller than Y1, because the smaller the worst RSRP is, the more unstable the satellite cell signal is. It can be seen that the signal quality of the satellite cell in the second satellite series is more stable, while the signal quality of the satellite cell in the first satellite series fluctuates greatly.
  • Measurement 2 Variance of N signal quality parameters.
  • the first satellite series includes 3 satellites, namely satellite 1 and satellite 2. As well as satellite 3, satellite 1 covers cell 1, satellite 2 covers satellite cell 2, and satellite 3 covers satellite cell 3.
  • the measurement time range of satellite cell 1 is from time 1 to time 2
  • the measurement time range of satellite cell 2 is from time 3 to time 4
  • the measurement time range of satellite cell 3 is from time 5 to time 6.
  • the terminal measures the RSRP of satellite cell 1 from time 1 to time 2, and calculates the variance value of the RSRP of satellite cell 1, which is the variance 1; the terminal measures the RSRP of satellite cell 2 from time 3 to time 4, and calculates the RSRP of satellite cell 2.
  • the variance value is also variance 2; the terminal measures the RSRP of satellite cell 3 from time 5 to time 6, and calculates the variance value of the RSRP of satellite cell 3, which is variance 3; therefore, the measurement value 2 is variance 1, variance 2 and variance 3. .
  • variance 1 is less than variance 2
  • variance 2 is less than variance 3.
  • the measurement configuration information also includes the information of the satellite cell in a second satellite series and the measurement time range.
  • the second satellite series includes two satellites, satellite A and satellite B. Satellite A covers satellite cell A1, and satellite B covers satellite cell. B1.
  • the measurement time range of satellite cell A1 is from time 1 to time 2, and the measurement time range of satellite cell B1 is from time 7 to time 8.
  • the terminal measures the RSRP of satellite cell A1 from time 1 to time 2, and calculates the variance value of the RSRP of satellite cell 1, which is variance 4; the terminal measures the RSRP of satellite cell B1 from time 7 to time 8, and calculates the RSRP of satellite cell B1.
  • the variance value is also variance 5; therefore measurement value 2 is variance 4 and variance 5. Among them, variance 4 is smaller than variance 5.
  • variance 3 is smaller than variance 5. Since the smaller the variance value, the more stable the satellite cell signal is. It can be seen that the signal quality of the satellite cell in the second satellite series fluctuates greatly, while the signal quality of the satellite cell in the first satellite series is stable.
  • Measured value 3 The ratio of the variance of N signal quality parameters to the average value of the signal quality parameters.
  • the ratio of the variance of the N signal quality parameters to the average of the signal quality parameters is taken as the measured value.
  • the signal quality parameter is RSRP
  • the first satellite series includes 3 satellites.
  • the satellites are respectively satellite 1, satellite 2 and satellite 3.
  • Satellite 1 covers cell 1
  • satellite 2 covers cell 2
  • satellite 3 covers cell 3.
  • the measurement time range of satellite cell 1 is from time 1 to time 2
  • the measurement time range of satellite cell 2 is from time 3 to time 4
  • the measurement time range of satellite cell 3 is from time 5 to time 6.
  • the terminal measures the RSRP of satellite cell 1 from time 1 to time 2, and calculates the ratio of the variance value of the RSRP of satellite cell 1 to the average value of RSRP, which is the ratio 1; the terminal measures the RSRP of satellite cell 2 from time 3 to time 4, and Calculate the ratio of the variance value of RSRP of satellite cell 2 to the average value of RSRP, that is, the ratio 2; the terminal measures the RSRP of satellite cell 3 from time 5 to time 6, and calculates the variance value of RSRP of satellite cell 3 and the average of RSRP
  • the ratio of values is also ratio 3; therefore the measured value 3 is ratio 1, ratio 2 and ratio 3. Among them, ratio 1 is smaller than ratio 2, and ratio 2 is smaller than ratio 3.
  • the measurement configuration information also includes the information of the satellite cell in a second satellite series and the measurement time range.
  • the second satellite series includes two satellites, satellite A and satellite B. Satellite A covers satellite cell A1, and satellite B covers satellite cell. B1.
  • the measurement time range of satellite cell A1 is from time 1 to time 2, and the measurement time range of satellite cell B1 is from time 7 to time 8.
  • the terminal measures the RSRP of satellite cell A1 from time 1 to time 2, and calculates the ratio of the variance value of the RSRP of satellite cell 1 to the average value of RSRP, which is the ratio 4;
  • the terminal measures the RSRP of satellite cell B1 from time 7 to time 8, and calculates the RSRP of satellite cell B1 from time 7 to time 8.
  • Calculate the ratio of the variance value of the RSRP of the satellite cell B1 to the average value of the RSRP that is, the ratio 5; therefore, the measured value 3 is the ratio 4 and the ratio 5.
  • the ratio 4 is smaller than the ratio 5.
  • the ratio 3 is smaller than the ratio 5, because the smaller the ratio, the more stable the satellite cell signal is. It can be seen that the signal quality of the satellite cells in the second satellite series fluctuates greatly, and the signal quality of the satellite cells in the first satellite series is stable.
  • Measured value 4 The first time length and start and end time of the corresponding time period for the signal quality parameter higher than the first quality parameter threshold among the N signal quality parameters.
  • the first time length and the start and end time of the time period corresponding to the signal quality parameter higher than the first quality parameter threshold among the N signal quality parameters are used as measured values.
  • the signal quality parameter is RSRP
  • the first satellite series includes three satellites, namely satellite 1, satellite 2 and satellite 3. Satellite 1 covers satellite cell 1, satellite 2 covers satellite cell 2, and satellite 3 covers satellite cell 3.
  • the measurement time range of satellite cell 1 is from time 1 to time 2
  • the measurement time range of satellite cell 2 is from time 3 to time 4
  • the measurement time range of satellite cell 3 is from time 5 to time 6.
  • the terminal measures the RSRP of satellite cell 1 from time 1 to time 2, and calculates the time length for which the RSRP of satellite cell 1 is higher than the first quality parameter threshold W and the start and end time of this time length (for example, the terminal measures from time 1 to time 2 Obtain the RSRP of satellite cell 1.
  • the RSRP of satellite cell 1 measured by the terminal from time 1.2 to time 1.8 is higher than W.
  • the measurement configuration information also includes the information of the satellite cell in a second satellite series and the measurement time range.
  • the second satellite series includes two satellites, satellite A and satellite B. Satellite A covers satellite cell A1, and satellite B covers satellite cell. B1.
  • the measurement time range of satellite cell A1 is from time 1 to time 2, and the measurement time range of satellite cell B1 is from time 7 to time 8.
  • the terminal measures the RSRP of satellite cell A1 from time 1 to time 2, and calculates the time length for which the RSRP of satellite cell A1 is higher than the first quality parameter threshold W and the start and end time of this time length (for example, the terminal measures from time 1 to time 2 Obtain the RSRP of satellite cell 1.
  • the RSRP of satellite cell A1 measured by the terminal from time 1.5 to time 1.8 is higher than W.
  • time 1.5 to time 1.8 is recorded as The start and end time of the first time length
  • 0.3 and time 1.5 ⁇ 1.8 are used as measurement values 4);
  • the terminal measures the RSRP of satellite cell B1 from time 7 to time 8, and calculates the time length for which the RSRP of satellite cell B1 is higher than W and The start and end time of this time length (for example, the terminal measured the RSRP of satellite cell B1 from time 7 to time 8, the RSRP of satellite cell B1 measured by the terminal from time 7.1 to time 7.9 was higher than W, and the RSRP of satellite cell B1 measured by the terminal from time 7.1 to time 7.9
  • the time length 0.2 greater than the threshold is less than 0.3. Since the longer the first time length indicates the more stable the satellite cell signal, it can be seen that the signal quality of the satellite cell in the first satellite series fluctuates greatly, and the signal quality of the satellite cell in the second satellite series fluctuates greatly. stable quality.
  • Measured value 5 The second time length and start and end time of the corresponding time period for the signal quality parameter lower than the second quality parameter threshold among the N signal quality parameters.
  • the second quality parameter threshold shown in the measured value 5 can be set to the same value as the first quality parameter threshold in the above-mentioned measured value 4, or can be set to a different value.
  • This application is not specific here. Limitation, the following description takes the first quality parameter threshold and the second quality parameter threshold as being different as an example.
  • the second time length and the start and end time of the time period corresponding to the signal quality parameter lower than the second quality parameter threshold among the N signal quality parameters are used as measured values.
  • the signal quality parameter It is RSRP.
  • the first satellite series includes three satellites, namely satellite 1, satellite 2 and satellite 3. Satellite 1 covers cell 1, satellite 2 covers cell 2, and satellite 3 covers satellite cell 3.
  • the measurement time range of satellite cell 1 is from time 1 to time 2
  • the measurement time range of satellite cell 2 is from time 3 to time 4
  • the measurement time range of satellite cell 3 is from time 5 to time 6.
  • the terminal measures the RSRP of satellite cell 1 from time 1 to time 2, and calculates the time length for which the RSRP of satellite cell 1 is lower than the second quality parameter threshold S and the start and end time of this time length (for example, the terminal measures from time 1 to time 2 Obtain the RSRP of satellite cell 1.
  • the RSRP of satellite cell 1 measured by the terminal from time 1.8 to time 2 is lower than S.
  • the terminal measures the RSRP of satellite cell 3 from time 5 to time 6, and calculates the RSRP of satellite cell 3
  • 0.2 is less than 0.3
  • 0.3 is less than 0.5.
  • the measurement configuration information also includes the information of the satellite cell in a second satellite series and the measurement time range.
  • the second satellite series includes two satellites, satellite A and satellite B. Satellite A covers satellite cell A1, and satellite B covers satellite cell. B1.
  • the measurement time range of satellite cell A1 is from time 1 to time 2, and the measurement time range of satellite cell B1 is from time 7 to time 8.
  • the terminal measures the RSRP of satellite cell A1 from time 1 to time 2, and calculates the time length for which the RSRP of satellite cell A1 is lower than the second quality parameter threshold S and the start and end time of this time length (for example, the terminal measures from time 1 to time 2 Obtain the RSRP of satellite cell A1.
  • the RSRP of satellite cell A1 measured by the terminal from time 1.5 to time 1.8 is lower than S.
  • the signal quality parameters lower than the second quality parameter threshold correspond to the time period 0.5 and less than 0.8. Since the longer the second time length indicates the more unstable the satellite cell signal, it can be seen that the signal quality of the satellite cell in the second satellite series fluctuates greatly. , the signal quality of satellite cells in the first satellite series is stable.
  • Measurement value 6 The ratio of the first time length to the measurement time range of the first satellite cell.
  • the ratio of the first time length to the measurement time range of the first satellite cell is used as the measurement value, which can be understood through the following example.
  • the signal quality parameter is RSRP
  • the first satellite series includes 3 satellites. , respectively satellite 1, satellite 2 and satellite 3. Satellite 1 covers cell 1, satellite 2 covers cell 2, and satellite 3 covers cell 3.
  • the measurement time range of satellite cell 1 is from time 1 to time 2
  • the measurement time range of satellite cell 2 is from time 3 to time 4
  • the measurement time range of satellite cell 3 is from time 5 to time 6.
  • the terminal measures the RSRP of satellite cell 1 from time 1 to time 2, and calculates the ratio of the length of time in which the RSRP of satellite cell 1 is higher than the first quality parameter threshold W and the measurement time range (for example, the terminal measures from time 1 to time 2 Obtain the RSRP of satellite cell 1.
  • the ratio of the time length to the measurement time range for example, if the terminal measured from
  • the measurement configuration information also includes the information of the satellite cell in a second satellite series and the measurement time range.
  • the second satellite series includes two satellites, satellite A and satellite B. Satellite A covers satellite cell A1, and satellite B covers satellite cell. B1.
  • the measurement time range of satellite cell A1 is from time 1 to time 2, and the measurement time range of satellite cell B1 is from time 7 to time 8.
  • the terminal measures the RSRP of satellite cell A1 from time 1 to time 2, and calculates the ratio of the length of time in which the RSRP of satellite cell A1 is higher than the first quality parameter threshold W and the measurement time range (for example, the terminal measures from time 1 to time 2 Obtain the RSRP of satellite cell 1.
  • the terminal measures the RSRP of satellite cell B1 from time 7 to time 8, and calculates the ratio of the length of time when the RSRP of satellite cell B1 is higher than W and the measurement time range (for example, the terminal measures the RSRP of satellite cell B1 from time 7 to time 8.
  • the RSRP of satellite cell B1 measured by the terminal from time 7.1 to time 7.9 is higher than W
  • the RSRP of satellite cell B1 measured by the terminal from time 7.1 to time 7.9 is higher than W
  • 0.8((7.9-7.1 0.8)/ (8-7)) recorded as measured value 6).
  • 0.3 is less than 0.8.
  • 0.2 is less than 0.3. Since the larger the ratio, the more stable the satellite cell signal is. It can be seen that the signal quality of the satellite cells in the first satellite series fluctuates greatly, and the signal quality of the satellite cells in the second satellite series is stable.
  • Measurement value 7 The ratio of the second time length to the measurement time range of the first satellite cell.
  • the ratio of the second time length to the measurement time range of the first satellite cell is used as the measurement value, which can be understood through the following example.
  • the signal quality parameter is RSRP
  • the first satellite series includes 3 satellites. , respectively satellite 1, satellite 2 and satellite 3. Satellite 1 covers cell 1, satellite 2 covers cell 2, and satellite 3 covers cell 3.
  • the measurement time range of satellite cell 1 is from time 1 to time 2
  • the measurement time range of satellite cell 2 is from time 3 to time 4
  • the measurement time range of satellite cell 3 is from time 5 to time 6.
  • the terminal measures the RSRP of satellite cell 1 from time 1 to time 2, and calculates the ratio of the length of time that the RSRP of satellite cell 1 is lower than the second quality parameter threshold S and the measurement time range (for example, the terminal measures from time 1 to time 2 Obtain the RSRP of satellite cell 1.
  • the ratio to the measurement time range for example, if the terminal
  • the measurement configuration information also includes the information of the satellite cell in the second satellite series and the measurement time range.
  • the second satellite series includes two satellites, satellite A and satellite B. Satellite A covers satellite cell A1, and satellite B covers satellite cell. B1.
  • the measurement time range of satellite cell A1 is from time 1 to time 2, and the measurement time range of satellite cell B1 is from time 7 to time 8.
  • the terminal measures the RSRP of satellite cell A1 from time 1 to time 2, and calculates the ratio of the length of time that the RSRP of satellite cell A1 is lower than the second quality parameter threshold S and the measurement time range (for example, the terminal measures from time 1 to time 2 Obtain the RSRP of satellite cell A1.
  • the terminal measures the RSRP of satellite cell B1 from time 7 to time 8, and calculates the ratio of the length of time that the RSRP of satellite cell B1 is lower than S and the measurement time range (for example, the terminal measures the RSRP of satellite cell B1 from time 7 to time 8.
  • the RSRP of satellite cell B1 measured by the terminal from time 7.1 to time 7.9 is lower than S
  • the RSRP of satellite cell B1 measured by the terminal from time 7.1 to time 7.9 is lower than S
  • 0.8((7.9-7.1 0.8)/ (8-7)) recorded as measured value 7).
  • 0.3 is less than 0.8.
  • 0.5 is less than 0.8, because the longer the ratio, the more unstable the satellite cell signal is. It can be seen that the signal quality of the satellite cell in the second satellite series fluctuates greatly, while the signal quality of the satellite cell in the first satellite series is stable.
  • the signal quality fluctuation of the satellite cell can also be jointly indicated by the above-mentioned multiple measured values.
  • measured value 1 and measured value 2 are jointly indicated, and the measured value 1 is jointly indicated.
  • the satellite cell with the worst signal quality parameters and the satellite cell with the largest variance of the quality parameters in measured value 2 are determined as cells with large signal quality fluctuations, or the signal quality parameters in measured value 1 are greater than a certain threshold, and the signal quality parameters in measured value 2 are Satellite cells whose quality parameter variance is greater than a certain threshold are determined as cells with large signal quality fluctuations.
  • other determination methods may be involved, and this application will not give examples here.
  • the above-mentioned measurement values can be set in priority order, and the signal quality of the satellite cell is determined based on the priority. It is assumed that there are three measurement values, among which the priority of measurement value 3 Greater than measurement 2, the priority of measurement value 2 is greater than measurement value 1. In practical applications, if the signal quality fluctuations reported by different measurement values are different in different cells, the measurement value with a higher priority can be used to determine the signal quality fluctuations.
  • the cell shall prevail, for example, the fluctuation condition of the satellite cell determined by the measurement value 3 shall prevail. This application is only described in an exemplary manner and is not specifically limited.
  • the signal quality fluctuations of satellite cells in different satellite series can be determined based on the above measurement values.
  • the network equipment can instruct the terminal to switch to the satellite cell reception service of the satellite series with more stable signal quality.
  • the terminal can also receive services according to different Depending on the signal quality fluctuations of satellite cells in the satellite series, choose the satellite cell of the satellite series with more stable signal quality to receive service.
  • the specific selection of which satellite cell in the satellite series with more stable signal quality is not specifically limited here. For example, it can be determined based on the time period in which the satellite cell can provide services for the terminal and the current time period. This application is This is not specifically limited.
  • the terminal reports the measurement value to the network device so that the network device can decide whether to perform a cell handover operation, or if the terminal is in the RRC non-connected state, the terminal determines whether to start signal measurement of the satellite cell or determine Whether to perform satellite cell reselection.
  • the terminal when the terminal performs cell signal measurement, it uses the correlation of satellite coverage in the orbit or trajectory and performs it based on the series of satellite measurement time ranges in the measurement configuration information. There are clear constraints on the measurement objects and the start and end time range. Through this This method can reduce unnecessary switching and reselection, thereby reducing signaling interactions and improving data processing efficiency. And by indicating the fluctuation of the cell signal quality of at least one satellite within the measurement time range by the above measurement value, it can avoid the terminal receiving only at the satellite closer to the terminal for a long time (actually the satellite may have signal obstruction, etc., which is the situation in Figure 6) Communication services can ensure communication quality.
  • the measurement configuration information also includes report configuration.
  • the report configuration may include: report content configuration information, used to indicate the type of measurement values included in the measurement report (that is, which measurement value is reported in the measurement report); triggering events, using Indicates the triggering conditions for reporting measurement reports.
  • the triggering event may include at least one of the following:
  • the first trigger event is used to indicate that when the signal quality fluctuation of the satellite cell in the satellite series where the terminal is located is higher than the first fluctuation threshold, a measurement report is reported.
  • the second trigger event is used to indicate that when the signal quality fluctuation of the satellite cell in the satellite series where the terminal is located is lower than the second fluctuation threshold, a measurement report is reported.
  • the third triggering event is used to indicate that when the signal quality fluctuation of a satellite cell in a satellite series other than the satellite series where the terminal is located is higher than the third fluctuation threshold, a measurement report is reported.
  • the fourth trigger event is used to indicate that when the signal quality fluctuation of a satellite cell in a satellite series other than the satellite series where the terminal is located is higher than the signal quality fluctuation of a satellite cell in the first satellite series, a measurement report is reported.
  • the satellite series where the terminal is located is the satellite series to which the serving satellite cell of the terminal belongs.
  • first fluctuation threshold, second fluctuation threshold and third fluctuation threshold can be set to the same threshold, or can be set to different thresholds, which is not specifically limited in this application.
  • Ls represents the ratio of the quality variance and the average quality of the series of satellite cells where the current terminal is located
  • Ln represents the ratio of the quality variance and the average quality of other series of satellite cells
  • Thresh the first fluctuation threshold
  • Offset offset, expressed in This offset is optional to avoid ping-pong effects.
  • trigger event L3 if the UE finds that the fluctuation of another series of satellites is better than the fluctuation of the current series of satellites (that is, the signals of the other series of satellites are more stable), a report is triggered. The base station may then instruct the UE to switch to another series of satellite cells.
  • multiple trigger events can be designed. For example, it can trigger only “worst quality” (similar to RSRP trigger), or it can trigger “worst quality” and “quality variance” at the same time. (Similar to RSRP and RSRQ triggering at the same time), it can also be triggered based on a certain indicator, such as "worst quality”, but the measurement report contains multiple measurement results at the same time, such as “worst quality” and “quality variance” (similar to RSRP triggering RSRQ filtering). Variables such as RSRP, RSRQ and volatility indicators can also be combined to trigger, and there are no restrictions on the specific combination.
  • the measurement configuration information also includes: adjacent satellite cell measurement conditions; the measurement conditions include at least one of the following:
  • Satellite cells of satellite series other than the satellite series where the terminal is located have a higher priority than satellite cells in the satellite series where the terminal is located; wherein, the satellite series where the terminal is located is the satellite series to which the serving satellite cell of the terminal belongs.
  • the satellite series of the current service terminal is satellite series 1.
  • the adjacent satellite series of satellite series 1 include satellite series 2 and satellite series 3.
  • satellite series 3 has a higher priority than satellite series 1
  • satellite series 2 has a higher priority.
  • Lower than satellite series 1 the signal measurement of the satellite cell of satellite series 3 is triggered.
  • the priorities of satellite series 2 and satellite series 3 can be sorted, and the satellite cell of the satellite series with the highest priority is selected for signal measurement.
  • the priority of satellite cells of satellite series other than the satellite series where the terminal is located is not higher than that of satellite cells in the satellite series where the terminal is located, and the signal quality fluctuation of the satellite cells in the satellite series where the terminal is located is higher than the fourth fluctuation threshold.
  • the satellite series of the current service terminal is satellite series 1
  • the satellite series adjacent to satellite series 1 includes satellite series 3.
  • the priority of satellite series 3 is not higher than that of satellite series 1, but the signal of the satellite cell of satellite series 1
  • the quality fluctuation is higher than the fourth fluctuation threshold, that is, the signal stability of the satellite cell of the current satellite series 1 is poor, so the signal measurement of the satellite cell of the satellite series 3 will be performed.
  • the measurement configuration information also includes: satellite cell reselection conditions; the reselection conditions include at least one of the following:
  • the signal quality of the satellite cells of the satellite series other than the satellite series where the terminal is located is not higher than the fourth fluctuation threshold; within the preset time threshold, the signal quality of the satellite cells of the satellite series other than the satellite series where the terminal is located is Not higher than the signal quality of the satellite cell of the satellite series where the terminal is located. That is, within the preset time threshold, the signal of the neighboring cell of the current serving terminal's satellite cell is more stable than the signal of the current serving terminal's satellite cell, so the neighboring cell can be used as the new serving terminal's satellite cell.
  • the preset time threshold can be set based on the user's needs, for example, set to 1 day, or 1 week, or 10 hours, etc. This application does not limit the specific time range of the preset time threshold. .
  • the base station configures (or agrees with the UE) reselection conditions related to the large time granularity fluctuations between different satellite series for the UE.
  • the coverage of the satellite series with low long-term fluctuations is included in the reselection consideration index, and the UE is prioritized. Save it for satellite series with smaller long-period fluctuations. For example, if the recent signal quality of target satellites in two different orbits is similar (the difference is less than the threshold), but the signal stability of the target satellite in one of the orbits is higher, the UE should camp in a satellite cell in an orbit with higher long-period signal quality. .
  • the reselection of cells with the same priority is based on the R criterion.
  • the R criterion assigns each neighboring cell and An R (Rank) value is calculated from the measurement results of the current serving cell, and then sorted according to the size of the R value. If the R value is greater than the current serving cell, it meets the reselection criteria. If there are multiple ones that meet the criteria, the best one is selected. If it continues to exceed TreselectionRAT, the R criterion is always met.
  • the UE initiates a reselection operation to the cell.
  • the R value is calculated as follows
  • R s Q meas,s +Q hyst -Qoffset temp
  • R n Q meas,n –Qoffset-Qoffset temp
  • Q meas,s is the R criterion calculation parameter, which is used to indicate the signal quality of the cell of the currently serving satellite, which can be obtained through the system message NA.
  • Q meas, n is an R criterion calculation parameter used to indicate the signal quality of neighboring cells of the cell of the currently serving satellite, which can be obtained through the system message NA.
  • Q Hyst is an R criterion calculation parameter used to indicate the reselection hysteresis value of the cell of the currently serving satellite, which can be obtained through the system message SIB2.
  • Qoffset is the calculation parameter of the R criterion.
  • this value is Qoffsetcell and is taken from SIB3; in the case of inter-frequency reselection, this value is equal to QoffsetCell+QoffsetFreq, and both values are taken from SIB4.
  • Qoffsettemp is the R criterion calculation parameter, which can be obtained through the system message SIB1. Among them, Q meas,s and Q meas, n are the measured values.
  • the satellite cells of the satellites in the first satellite series can be formed into a super cell
  • the satellite cells of the satellites in the second satellite series can be formed into a super cell. Cell reselection and handover of the satellites in the super cell are not required. Through signaling interaction between network equipment and terminals, signaling overhead can be reduced and data processing efficiency can be improved. Only satellite cell switching of satellites under different series identities triggers signaling interactions between network equipment and terminals.
  • each device may include a corresponding hardware structure and/or software module to perform each function.
  • each device may include a corresponding hardware structure and/or software module to perform each function.
  • the embodiments of the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is performed by hardware or by computer software driving the hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each specific application, but such implementations should not be considered beyond the scope of this application.
  • Embodiments of the present application can divide the device into functional units according to the above method examples.
  • each functional unit can be divided corresponding to each function, or two or more functions can be integrated into one unit.
  • the above integrated units can be implemented in the form of hardware or software functional units.
  • FIG. 10 shows a possible exemplary block diagram of the communication device involved in the embodiment of the present application.
  • the communication device 1000 may include: a processing unit 1001 and a transceiver unit 1002.
  • the processing unit 1001 is used to control and manage the operations of the communication device 1000 .
  • the transceiver unit 1002 is used to support communication between the communication device 1000 and other devices.
  • the transceiver unit 1002 may include a receiving unit and/or a sending unit, respectively configured to perform receiving and sending operations.
  • the communication device 1000 may also include a storage unit for storing program codes and/or data of the communication device 1000 .
  • the transceiver unit may be called an input-output unit, a communication unit, etc.
  • the transceiver unit may be a transceiver; the processing unit may be a processor.
  • the communication device is a module (such as a chip) in a communication device
  • the transceiver unit may be an input-output interface, an input-output circuit, or an input-output pin, etc., and may also be called an interface, a communication interface, or an interface circuit, etc.
  • the processing unit may be a processor, a processing circuit or a logic circuit, etc.
  • the device may be the above-mentioned terminal, network equipment, satellite, etc.
  • the transceiver unit 1002 is used to obtain measurement configuration information.
  • the measurement configuration information includes information on at least one satellite cell and a measurement time range.
  • the at least one satellite cell includes a first satellite cell, and the measurement time of the first satellite cell.
  • the range is all or part of the time period during which the coverage of the first satellite cell is located in the first area, and the first area is the area where the terminal is located;
  • the processing unit 1001 is configured to measure at least one satellite cell in the first area according to the measurement configuration information.
  • the signal is measured to obtain a measurement value, which is used to indicate the signal quality fluctuation of at least one satellite cell within the measurement time range.
  • the satellites corresponding to at least one satellite cell include satellites in the first satellite series and the second satellite series.
  • the orbits of satellites in the same satellite series are the same or are projected on the ground. same.
  • the measurement start and end times of satellite cells of different satellites in the same satellite series are different.
  • the measurement configuration information also includes: the identification of the satellite cell and the measurement frequency point of at least one satellite cell.
  • the terminal measures N signal quality parameters within the measurement time range of the first satellite cell, and the measurement value of the first satellite cell includes at least one of the following:
  • the signal quality parameter with the worst signal among the N signal quality parameters is the worst signal among the N signal quality parameters
  • the signal quality parameter higher than the first quality parameter threshold corresponds to the first time length and start and end time of the time period
  • the signal quality parameter among the N signal quality parameters that is lower than the second quality parameter threshold corresponds to the second time length and start and end time of the time period
  • the ratio of the first time length to the measurement time range of the first satellite cell is the ratio of the first time length to the measurement time range of the first satellite cell
  • the ratio of the second time length to the measurement time range of the first satellite cell is the ratio of the second time length to the measurement time range of the first satellite cell.
  • the signal quality parameter is one of the following: RSRP, RSSI, RSRQ, and SINR.
  • the measurement configuration information also includes report configuration.
  • the report configuration includes: report content configuration information, used to indicate the type of measurement values included in the measurement report; and trigger events, used to indicate trigger conditions for reporting the measurement report.
  • the triggering event includes at least one of the following:
  • the first trigger event is used to indicate that when the signal quality fluctuation of the satellite cell in the satellite series where the terminal is located is higher than the first fluctuation threshold, a measurement report is reported;
  • the second trigger event is used to indicate that when the signal quality fluctuation of the satellite cell in the satellite series where the terminal is located is lower than the second fluctuation threshold, a measurement report is reported;
  • the third trigger event is used to indicate that when the signal quality fluctuation of a satellite cell in a satellite series other than the satellite series where the terminal is located is higher than the third fluctuation threshold, a measurement report is reported;
  • the fourth trigger event is used to indicate that when the signal quality fluctuation of the satellite cell in the satellite series other than the satellite series where the terminal is located is higher than the signal quality fluctuation of the satellite cell in the first satellite series, a measurement report is reported;
  • the satellite series where the terminal is located is the satellite series to which the serving satellite cell of the terminal belongs.
  • the measurement configuration information also includes: adjacent satellite cell measurement conditions; adjacent satellite cell measurement conditions include at least one of the following:
  • Satellite cells of satellite series other than the satellite series where the terminal is located have a higher priority than satellite cells in the satellite series where the terminal is located;
  • the priority of satellite cells of satellite series other than the satellite series where the terminal is located is not higher than that of satellite cells in the satellite series where the terminal is located, and the signal quality fluctuation of the satellite cells in the satellite series where the terminal is located is higher than the fourth fluctuation threshold;
  • the satellite series where the terminal is located is the satellite series to which the serving satellite cell of the terminal belongs.
  • the measurement configuration information also includes: satellite cell reselection conditions, and the reselection conditions include at least one of the following:
  • the signal quality of the satellite cell of the satellite series other than the satellite series where the terminal is located is not higher than the fourth fluctuation threshold
  • the signal quality of the satellite cell of the satellite series other than the satellite series where the terminal is located is not higher than the signal quality of the satellite cell of the satellite series where the terminal is located.
  • the measurement configuration information also includes: the series identification of the first satellite series and the series identification of the second satellite series.
  • the satellite cells of the satellites in the first satellite series constitute a super cell
  • the satellite cells of the satellites in the second satellite series constitute a super cell
  • the transceiver unit 1002 is also used to receive measurement configuration information from the network device.
  • the transceiver unit 1002 is also used to report the measurement value; or if the terminal is in the RRC non-connected state, the processing unit 1001 is also used to determine the satellite cell based on the measurement value. signal quality fluctuations.
  • the terminal reports the measurement value; or if the terminal is in the RRC non-connected state, the terminal determines whether to start signal measurement of the satellite cell or determine whether to perform satellite cell reselection.
  • the processing unit 1001 is configured to determine measurement configuration information.
  • the measurement configuration information includes information on at least one satellite cell and a measurement time range.
  • the at least one satellite cell includes a first satellite cell, and the measurement of the first satellite cell
  • the time range is all or part of the time period during which the coverage of the first satellite cell is located in the first area, and the first area is the area where the terminal is located; the transceiver unit 1002 is used to send measurement configuration information.
  • the satellites corresponding to at least one satellite cell include satellites in the first satellite series and the second satellite series. Satellites in the same satellite series have the same orbit or the same projected trajectory on the ground.
  • the measurement start and end times of satellite cells of different satellites in the same satellite series are different.
  • the measurement configuration information also includes report configuration.
  • the report configuration includes:
  • Report content configuration information used to indicate the type of measurement values included in the measurement report
  • Trigger events are used to indicate the trigger conditions for reporting measurement reports.
  • the triggering event includes at least one of the following:
  • the first trigger event is used to indicate that when the signal quality fluctuation of the satellite cell in the satellite series where the terminal is located is higher than the first fluctuation threshold, a measurement report is reported;
  • the second trigger event is used to indicate that when the signal quality fluctuation of the satellite cell in the satellite series where the terminal is located is lower than the second fluctuation threshold, a measurement report is reported;
  • the third trigger event is used to indicate that when the signal quality fluctuation of a satellite cell in a satellite series other than the satellite series where the terminal is located is higher than the third fluctuation threshold, a measurement report is reported;
  • the fourth trigger event is used to indicate that when the signal quality fluctuation of the satellite cell in the satellite series other than the satellite series where the terminal is located is higher than the signal quality fluctuation of the satellite cell in the satellite series where the terminal is located, a measurement report is reported;
  • the satellite series where the terminal is located is the satellite series to which the serving satellite cell of the terminal belongs.
  • the transceiver unit 1002 is also configured to receive a measurement report reported by the terminal according to the measurement configuration information.
  • the measurement report includes the measurement value obtained by the terminal measuring the cell signal of at least one satellite in the first area according to the measurement configuration information;
  • the processing unit 1001 is also used to make satellite cell switching decisions for the terminal based on the measurement report.
  • the terminal measures N signal quality parameters within the measurement time range of the first satellite cell, and the measurement value of the first satellite cell includes at least one of the following:
  • the signal quality parameter with the worst signal among the N signal quality parameters is the worst signal among the N signal quality parameters
  • the signal quality parameter higher than the first quality parameter threshold corresponds to the first time length and start and end time of the time period
  • the signal quality parameter among the N signal quality parameters that is lower than the second quality parameter threshold corresponds to the second time length and start and end time of the time period
  • the ratio of the second time length to the measurement time range of the first satellite cell is the ratio of the second time length to the measurement time range of the first satellite cell.
  • the signal quality parameter is one of the following: RSRP, RSSI, RSRQ, and SINR.
  • the measurement configuration information also includes: adjacent satellite cell measurement conditions;
  • the adjacent satellite cell measurement conditions include at least one of the following:
  • Satellite cells of satellite series other than the satellite series where the terminal is located have a higher priority than satellite cells in the satellite series where the terminal is located;
  • the priority of satellite cells of satellite series other than the satellite series where the terminal is located is not higher than that of satellite cells in the satellite series where the terminal is located, and the signal quality fluctuation of the satellite cells in the satellite series where the terminal is located is higher than the fourth fluctuation threshold;
  • the satellite series where the terminal is located is the satellite series to which the serving satellite cell of the terminal belongs.
  • the measurement configuration information also includes: satellite cell reselection conditions, and the reselection conditions include at least one of the following:
  • the signal quality of the satellite cell of the satellite series other than the satellite series where the terminal is located is not higher than the fourth fluctuation threshold
  • the signal quality of the satellite cell of the satellite series other than the satellite series where the terminal is located is not higher than the signal quality of the satellite cell of the satellite series where the terminal is located.
  • the measurement configuration information also includes: the series identification of the first satellite series and the series identification of the second satellite series.
  • Communication device 1100 may be a chip or a system on a chip.
  • the communication device may be located in the equipment involved in any of the above method embodiments, such as satellites, network equipment, terminals, etc., to perform actions corresponding to the equipment.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • Communication device 1100 includes processor 1110.
  • the processor 1110 is used to execute the computer program stored in the memory 1120 to implement the actions of each device in any of the above method embodiments.
  • Communication device 1100 may also include memory 1120 for storing computer programs.
  • memory 1120 and processor 1110 are coupled. Coupling is an indirect coupling or communication connection between devices, units or modules, which can be electrical, mechanical or other forms, and is used for information interaction between devices, units or modules.
  • the memory 1120 is integrated with the processor 1110 .
  • processors 1110 and memories 1120 there can be one or more processors 1110 and memories 1120 without limitation.
  • the communication device 1100 may or may not include the transceiver 1130 , as shown by a dotted box in the figure, and the communication device 1100 may interact with other devices through the transceiver 1130 .
  • the transceiver 1130 may be a circuit, a bus, a transceiver, or any other device that may be used for information exchange.
  • the communication device 1100 may be the first satellite or ground equipment in the implementation of the above methods.
  • connection medium between the transceiver 1130, the processor 1110 and the memory 1120 is not limited in the embodiment of the present application.
  • the memory 1120, the processor 1110 and the transceiver 1130 are connected through a bus in Figure 11.
  • the bus is represented by a thick line in Figure 11.
  • the connection methods between other components are only schematically explained. It is not limited.
  • the bus can be divided into address bus, data bus, control bus, etc. For ease of presentation, only one thick line is used in Figure 11, but it does not mean that there is only one bus or one type of bus.
  • the processor may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may implement or Execute each method, step and logical block diagram disclosed in the embodiment of this application.
  • a general-purpose processor may be a microprocessor or any conventional processor, etc. The steps of the methods disclosed in conjunction with the embodiments of the present application can be directly implemented by a hardware processor, or executed by a combination of hardware and software modules in the processor.
  • the memory may be a non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), etc., or it may be a volatile memory (volatile memory), such as Random-access memory (RAM).
  • Memory may also be, but is not limited to, any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.
  • the memory in the embodiment of the present application can also be a circuit or any other device capable of performing a storage function, used to store computer programs, program instructions and/or data.
  • the embodiment of the present application also provides another communication device 1200, including: an interface circuit 1210 and a logic circuit 1220; the interface circuit 1210 can be understood as an input and output interface, and can be used to perform any of the above methods.
  • the sending and receiving steps of each device in the embodiment; the logic circuit 1220 can be used to run codes or instructions to perform the method performed by each device in any of the above embodiments, which will not be described again.
  • embodiments of the present application also provide a computer-readable storage medium that stores instructions. When the instructions are executed, each device in any of the above method embodiments is executed. be implemented.
  • the computer-readable storage medium may include: U disk, mobile hard disk, read-only memory, random access memory, magnetic disk or optical disk and other various media that can store program codes.
  • embodiments of the present application provide a communication system, which includes the satellites, terminals and network equipment mentioned in any of the above method embodiments, and can be used to perform the tasks performed by each device in any of the above method embodiments. method.
  • embodiments of the present application may be provided as methods, systems, or computer program products. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment that combines software and hardware aspects. Furthermore, the present application may employ computer-usable storage media (including but not limited to magnetic disk storage, compact disc read-only memory (CD-ROM)) containing computer-usable program code therein. , optical storage, etc.).
  • computer-usable storage media including but not limited to magnetic disk storage, compact disc read-only memory (CD-ROM)
  • CD-ROM compact disc read-only memory
  • These computer program instructions may also be stored in a computer-readable memory that causes a computer or other programmable data processing apparatus to operate in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction apparatus, the instructions
  • the device implements the functions specified in a process or processes of the flowchart and/or a block or blocks of the block diagram.
  • These computer program instructions may also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce computer-implemented processing, thereby executing on the computer or other programmable device.
  • Instructions provide steps for implementing the functions specified in a process or processes of a flowchart diagram and/or a block or blocks of a block diagram.

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Abstract

一种信号测量方法及通信装置，终端获取测量配置信息，测量配置信息包括至少一个卫星小区的信息以及测量时间范围，至少一个卫星小区中包括第一卫星小区，第一卫星小区的测量时间范围为第一卫星小区的覆盖范围位于第一区域的时间长度的全部或部分，第一区域为终端所在的区域；终端根据测量配置信息，对第一区域内至少一个卫星小区的信号进行测量，得到测量值，测量值用于指示测量时间范围内至少一个卫星小区的信号质量波动。

Description

一种信号测量方法及通信装置 技术领域
本申请实施例涉及通信技术领域，尤其涉及一种信号测量方法及通信装置。
背景技术
目前，第五代(5th generation，5G)新空口(new radio，NR)已经从标准化阶段进入到商业部署阶段。NR标准是针对于陆地通信特点进行研究设计，具有为用户终端提供高速率、高可靠、低时延通信的特点。相比于陆地通信，非陆地网络(non-terrestrial networks，NTN)通信具有覆盖区域大、组网灵活等特点。当前，各研究院、通信组织、公司参等均参与研究NTN通信技术与标准，力图将天、空、地通信构建成一个统一的通信网络。
在地面通信中，用户终端(user equipment，UE)与5G基站(gNodeB，gNB)建立完无线资源控制(radio resource control，RRC)连接后，gNB会下发测量控制信息，当gNB通过UE定期上报的测量报告发现存在满足要求的目标小区时，gNB指示UE执切换至目标小区接收服务。但是在NTN通信场景中，若轨道A中的卫星距离UE距离较近，但在给定区域内的受到遮挡，通信质量降低。覆盖同一给定区域的轨道B中卫星可能不受遮挡影响，但是在基于现有的小区切换机制，虽然轨道A中卫星信号在通信过程中某个时刻受到遮挡，UE依然选择接收轨道A中卫星的通信服务，用户的业务体验较差。此外，UE定期上报测量报告开销较大。
发明内容
本申请提供一种信号测量方法及通信装置，以减少信号测量的开销，并提高小区切换、小区重选以及小区接入的效率。
第一方面，本申请提供一种信号测量方法，该方法可通过终端来执行，该终端可以理解为UE、车载设备、终端的芯片等，本申请在此不具体限定终端的类型。终端可与卫星进行通信，在本申请中，卫星可以为静止卫星、非静止卫星、人造卫星、低轨道卫星、中轨道卫星以及高轨道卫星等，本申请在此不具体限定。
终端获取测量配置信息，测量配置信息包括至少一个卫星小区的信息以及测量时间范围，至少一个卫星小区中包括第一卫星小区，第一卫星小区的测量时间范围为第一卫星小区的覆盖范围位于第一区域的时间长度的全部或部分，第一区域为终端所在的区域；终端根据测量配置信息，对第一区域内至少一个卫星小区的信号进行测量，得到测量值。
本申请中，终端在进行小区信号测量时，利用轨道或者轨迹中卫星覆盖的相关性，基于测量配置信息中系列卫星测量时间范围进行的，对测量对象和起止时间范围有明确的约束，通过该方式可以减少不必要的切换和重选，进而减少信令的交互，提高数据处理效率。在一种可选的实施方式中，至少一个卫星小区对应的卫星，包括第一卫星系列和第二卫星系列中的卫星，同一卫星系列中的卫星的轨道相同或在地面投影轨迹相同。
在一种可选的实施方式中，同一卫星系列中不同卫星的卫星小区的测量起止时间不同。
在一种可选的实施方式中，测量配置信息还包括：卫星小区的标识、至少一个卫星小 区的测量频点。
在一种可选的实施方式中，终端在第一卫星小区的测量时间范围内测量到N个信号质量参数，第一卫星小区的测量值，包括以下至少一项：
N个信号质量参数中信号最差的信号质量参数；
N个信号质量参数的方差；
N个信号质量参数的方差与信号质量参数的平均值的比值；
N个信号质量参数中高于第一质量参数阈值的信号质量参数对应时间段的第一时间长度以及起止时间；
N个信号质量参数中低于第二质量参数阈值的信号质量参数对应时间段的第二时间长度以及起止时间；
第一时间长度与第一卫星小区的测量时间范围的比值；
第二时间长度与第一卫星小区的测量时间范围的比值。
通过上述的测量值指示测量时间范围内至少一个卫星的小区信号质量波动，可以避免终端只在短期信号质量从而选择距离终端较近但实际该可能存在信号遮挡的卫星接收通信服务，可以保证通信质量。
在一种可选的实施方式中，信号质量参数为以下中的一种：参考信号接收功率(reference signal received power，RSRP)、接收信号强度指示(received signal strength indicator，RSSI)、参考信号接收质量(reference signal received quality，RSRQ)以及信号干扰噪声比(signal to interference plus noise ratio，SINR)。
在一种可选的实施方式中，测量配置信息还包括报告配置，报告配置包括：报告内容配置信息，用于指示测量报告中包括的测量值的类型；触发事件，用于指示上报测量报告的触发条件。
在一种可选的实施方式中，触发事件包括以下至少一项：
第一触发事件，用于指示当终端所在卫星系列中的卫星小区信号质量波动高于第一波动阈值时，上报测量报告；
第二触发事件，用于指示当终端所在卫星系列中的卫星小区信号质量波动低于第二波动阈值时，上报测量报告；
第三触发事件，用于指示当终端所在卫星系列以外的卫星系列中的卫星小区信号质量波动高于第三波动阈值时，上报测量报告；
第四触发事件，用于指示当终端所在卫星系列以外的卫星系列中的卫星小区信号质量波动高于第一卫星系列中的卫星小区的信号质量波动时，上报测量报告；
其中，终端所在卫星系列为终端的服务卫星小区所属的卫星系列。
在一种可选的实施方式中，测量配置信息还包括：相邻的卫星小区测量条件；相邻的卫星小区测量条件包括以下中的至少一种：
终端所在卫星系列以外的卫星系列的卫星小区的优先级高于终端所在卫星系列中的卫星小区；
终端所在卫星系列以外的卫星系列的卫星小区的优先级不高于终端所在卫星系列中的卫星小区，且终端所在卫星系列中的卫星小区的信号质量波动高于第四波动阈值；
其中，终端所在卫星系列为终端的服务卫星小区所属的卫星系列。
在一种可选的实施方式中，测量配置信息还包括：卫星小区的重选条件，重选条件包 括以下中的至少一种：
在预设时间阈值内，终端所在卫星系列以外的卫星系列的卫星小区的信号质量不高于第四波动阈值；
在预设时间阈值内，终端所在卫星系列以外的卫星系列的卫星小区的信号质量不高于终端所在卫星系列的卫星小区的信号质量。
在一种可选的实施方式中，测量配置信息还包括：第一卫星系列的系列标识以及第二卫星系列的系列标识。
在一种可选的实施方式中，第一卫星系列中的卫星的卫星小区构成超小区；第二卫星系列中的卫星的卫星小区构成超小区。
在一种可选的实施方式中，终端接收来自网络设备的测量配置信息。
在一种可选的实施方式中，若终端处于无线资源控制RRC连接态时，终端上报测量值；或，若终端处于RRC非连接态时，终端确定是否启动卫星小区的信号测量或者确定是否执行卫星小区的重选。
第二方面，本申请提供一种信号测量方法，该方法可通过网络设备来执行，该网络设备可以理解为卫星、传输接收点(transmission reception point，TRP)等，本申请在此不具体限定。
网络设备确定测量配置信息，测量配置信息包括至少一个卫星小区的信息以及测量时间范围，至少一个卫星小区中包括第一卫星小区，第一卫星小区的测量时间范围为第一卫星小区的覆盖范围位于第一区域的时间长度的全部或部分，第一区域为终端所在的区域；网络设备发送测量配置信息。
在一种可选的实施方式中，至少一个卫星小区对应的卫星，包括第一卫星系列和第二卫星系列中的卫星，同一卫星系列中的卫星的轨道相同或在地面投影轨迹相同。
在一种可选的实施方式中，同一卫星系列中不同卫星的卫星小区的测量起止时间不同。
在一种可选的实施方式中，测量配置信息还包括报告配置，报告配置包括：
报告内容配置信息，用于指示测量报告中包括的测量值的类型；
触发事件，用于指示上报测量报告的触发条件。
在一种可选的实施方式中，触发事件包括以下至少一项：
第一触发事件，用于指示当终端所在卫星系列中的卫星小区信号质量波动高于第一波动阈值时，上报测量报告；
第二触发事件，用于指示当终端所在卫星系列中的卫星小区信号质量波动低于第二波动阈值时，上报测量报告；
第三触发事件，用于指示当终端所在卫星系列以外的卫星系列中的卫星小区信号质量波动高于第三波动阈值时，上报测量报告；
第四触发事件，用于指示当终端所在卫星系列以外的卫星系列中的卫星小区信号质量波动高于终端所在卫星系列中的卫星小区的信号质量波动时，上报测量报告；
其中，终端所在卫星系列为终端的服务卫星小区所属的卫星系列。
在一种可选的实施方式中，网络设备接收终端根据测量配置信息上报的测量报告，测量报告中包括终端根据测量配置信息，对第一区域内至少一个卫星的小区信号进行测量得到的测量值；
网络设备根据测量报告对终端进行卫星小区切换判决。
在一种可选的实施方式中，终端在第一卫星小区的测量时间范围内测量到N个信号质量参数，第一卫星小区的测量值，包括以下至少一项：
N个信号质量参数中信号最差的信号质量参数；
N个信号质量参数的方差；
N个信号质量参数的方差与信号质量参数的平均值的比值；
N个信号质量参数中高于第一质量参数阈值的信号质量参数对应时间段的第一时间长度以及起止时间；
N个信号质量参数中低于第二质量参数阈值的信号质量参数对应时间段的第二时间长度以及起止时间；
第一时间长度与第一卫星小区的测量时间范围的比值；
第二时间长度与第一卫星小区的测量时间范围的比值。
在一种可选的实施方式中，信号质量参数为以下中的一种：RSRP、RSSI、RSRQ以及SINR。
在一种可选的实施方式中，测量配置信息还包括：相邻的卫星小区测量条件；
相邻的卫星小区测量条件包括以下中的至少一种：
终端所在卫星系列以外的卫星系列的卫星小区的优先级高于终端所在卫星系列中的卫星小区；
终端所在卫星系列以外的卫星系列的卫星小区的优先级不高于终端所在卫星系列中的卫星小区，且终端所在卫星系列中的卫星小区的信号质量波动高于第四波动阈值；
其中，终端所在卫星系列为终端的服务卫星小区所属的卫星系列。
在一种可选的实施方式中，测量配置信息还包括：卫星小区的重选条件，重选条件包括以下中的至少一种：
在预设时间阈值内，终端所在卫星系列以外的卫星系列的卫星小区的信号质量不高于第四波动阈值；
在预设时间阈值内，终端所在卫星系列以外的卫星系列的卫星小区的信号质量不高于终端所在卫星系列的卫星小区的信号质量。
在一种可选的实施方式中，测量配置信息还包括：第一卫星系列的系列标识以及第二卫星系列的系列标识。
第三方面，本申请提供一种通信装置，所述通信装置可以为终端(比如第一方面中的终端、第二方面中的终端)或者设置在终端内部的芯片，还可以为网络设备(比如第一方面中的网络设备、第二方面中的网络设备)或者设置在网络设备内部的芯片。所述通信装置具备实现上述第一方面至第二方面中任一方面的功能，比如，所述通信装置包括执行上述第一方面至第二方面中任一方面涉及步骤所对应的模块或单元或手段(means)，所述功能或单元或手段可以通过软件实现，或者通过硬件实现，也可以通过硬件执行相应的软件实现。
在一种可能的设计中，所述通信装置包括处理单元、收发单元，其中，收发单元可以用于收发信号，以实现该通信装置和其它装置之间的通信，比如，收发单元用于发送测量配置信息；处理单元可以用于执行该通信装置的一些内部操作。所述收发单元可以称为输入输出单元、通信单元等，所述收发单元可以是收发器；所述处理单元可以是处理器。当通信装置是通信设备中的模块(如，芯片)时，所述收发单元可以是输入输出接口、输入 输出电路或输入输出管脚等，也可以称为接口、通信接口或接口电路等；所述处理单元可以是处理器、处理电路或逻辑电路等。
在又一种可能的设计中，所述通信装置包括处理器，还可以包括收发器，所述收发器用于收发信号，所述处理器执行程序指令，以完成上述第一方面至第二方面中任意可能的设计或实现方式中的方法。其中，所述通信装置还可以包括一个或多个存储器，所述存储器用于与处理器耦合，所述存储器可以保存实现上述第一方面至第二方面中任一方面涉及的功能的必要计算机程序或指令。所述处理器可执行所述存储器存储的计算机程序或指令，当所述计算机程序或指令被执行时，使得所述通信装置实现上述第一方面至第二方面任意可能的设计或实现方式中的方法。
在又一种可能的设计中，所述通信装置包括处理器，处理器可以用于与存储器耦合。所述存储器可以保存实现上述第一方面至第二方面中任一方面涉及的功能的必要计算机程序或指令。所述处理器可执行所述存储器存储的计算机程序或指令，当所述计算机程序或指令被执行时，使得所述通信装置实现上述第一方面至第二方面任意可能的设计或实现方式中的方法。
在又一种可能的设计中，所述通信装置包括处理器和接口电路，其中，处理器用于通过所述接口电路与其它装置通信，并执行上述第一方面至第二方面任意可能的设计或实现方式中的方法。
可以理解地，上述第三方面中，处理器可以通过硬件来实现也可以通过软件来实现，当通过硬件实现时，该处理器可以是逻辑电路、集成电路等；当通过软件来实现时，该处理器可以是一个通用处理器，通过读取存储器中存储的软件代码来实现。此外，以上处理器可以为一个或多个，存储器可以为一个或多个。存储器可以与处理器集成在一起，或者存储器与处理器分离设置。在具体实现过程中，存储器可以与处理器集成在同一块芯片上，也可以分别设置在不同的芯片上，本申请实施例对存储器的类型以及存储器与处理器的设置方式不做限定。
第四方面，本申请提供一种通信***，该通信***包括上述第一方面到第二方面中的终端、网络设备以及卫星。
第五方面，本申请提供了一种芯片***，该芯片***包括处理器，还可以包括存储器，用于实现上述第一方面到第二方面中任一种可能的设计中所述的方法。该芯片***可以由芯片构成，也可以包含芯片和其他分立器件。
第六方面，本申请还提供一种计算机可读存储介质，计算机可读存储介质中存储有计算机可读指令，当计算机可读指令在计算机上运行时，以使得计算机执行如第一方面到第二方面中任一种可能的设计中的方法。
第七方面，本申请提供一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行上述第一方面到第二方面的各实施例的方法。
上述第二方面至第七方面可以达到的技术效果，请参照上述第一方面中相应可能设计方案可以达到的技术效果说明，本申请这里不再重复赘述。
附图说明
图1为本申请实施例提供的一种透明转发架构的示意图；
图2为本申请实施例提供的一种再生架构的示意图；
图3为本申请实施例提供的一种通信场景示意图；
图4为本申请实施例提供的另一种通信场景示意图；
图5A为地面共轨迹卫星的示意图；
图5B为地面共轨迹卫星的运动示意图；
图6为一种终端通信场景的示意图；
图7为本申请实施例提供的一种信号测量方法的流程示意图；
图8为服务终端的多个系列卫星的示意图；
图9A为传统轨道卫星的卫星系列的示意图；
图9B为地面共轨迹卫星的卫星系列的示意图；
图10示出了本申请实施例提供的通信装置的结构示意图；
图11示出了本申请实施例提供的通信装置的结构示意图；
图12示出了本申请实施例提供的通信装置的结构示意图。
具体实施方式
为了使本申请的目的、技术方案和优点更加清楚，下面将结合附图对本申请作进一步地详细描述。方法实施例中的具体操作方法也可以应用于装置实施例或***实施例中。其中，在本申请的描述中，除非另有说明，“多个”的含义是两个或两个以上。因此装置与方法的实施可以相互参见，重复之处不再赘述。
NTN***可以包括卫星***。按照卫星高度，即卫星轨位高度，可以将卫星***分为高椭圆轨道(highly elliptical orbiting，HEO)卫星、GEO卫星、中轨(medium earth orbit，MEO)卫星和LEO卫星。此外，NTN***还可以包括高空平台(high altitude platform station，HAPS)通信***等空中网络设备，本申请涉及的网络设备不限于以上举例。
作为一种示例，参见图1，示出了NTN网络的架构示意图。该NTN网络包括第一网络设备、第二网络设备以及终端。第一网络设备可以是卫星，例如可为HEO卫星、GEO卫星、MEO卫星或LEO卫星或HAPS等，这里不作限制。第二网络设备可以是关口站(或称地面站、地球站、信关站)(gateway)，可用于连接第二网络设备与核心网。在图1中，第一网络设备的通信模式为透传模式(transparent)，即第一网络设备作为无线通信的基站，而第二网络设备可作为第一网络设备的中继，可透传第一网络设备与终端之间的信号。例如第二网络设备可通过基站接入核心网，进而接入数据网。
在本申请实施例中，第一网络设备的通信模式也可以是再生模式(regenerative)。参见图2，示出了NTN网络的另一种架构示意图。在图2中，第一网络设备的通信模式为再生模式，即第一网络设备可以作为无线通信的基站，例如第一网络设备可以是将人造地球卫星和高空飞行器等作为无线通信的基站，例如作为演进型基站(evolved Node B，eNB)和gNB等，第二网络设备可透传第一网络设备与核心网之间的信令。
应理解，图1和图2仅示出了一个第一网络设备以及一个第二网络设备，在实际使用中，可根据需要采取多个第一网络设备和/或一个第二网络设备的架构。其中，每个第一网络设备可向一个或多个终端提供服务，每个第二网络设备可对应于一个或多个第一网络设备，每个第一网络设备可对应于一个或多个第二网络设备，本申请中不予具体限定。
NTN通信***通过将接入网设备的全部功能或者部分功能部署在NTN设备(例如高空平台或者卫星等)上为终端设备提供无缝覆盖，由于非地面设备受自然灾害的影响较小， 能提升通信***的可靠性。
示例性的，图3示例性的示出一种可能的网络架构，在图3所示网络架构中NTN设备的架构可以为透明传输模式。图4示例性的示出另一种可能的网络架构，在图4所示网络架构中NTN设备的架构可以为再生模式。
一个示例中，NTN设备和地面上的接入网设备之间可以通过共同的核心网实现互联。或者，NTN设备和地面上的接入网设备也可以通过接入网设备间定义的接口实现更高时效性的协助和互联，参考NR，接入网设备间接口可以称为Xn接口，接入网设备和核心网的接口可以称为NG接口。NTN设备和地面上的接入网设备之间可以通过Xn接口或者NG接口实现互通和协同。
可选的，NTN设备与终端设备间的链路可以称作服务链路(service link)，NTN设备与网关设备间的链路可以称作馈电链路(feeder link)。
其中，网络设备，可以为具有接入网设备全部功能或者部分功能的NTN设备，或者也可以为地面上的接入网设备。接入网设备是网络侧中一种用于发射或接收信号的实体，如，gNB。接入网设备可以是用于与移动设备通信的设备。接入网设备可以是无线局域网(wireless local area networks，WLAN)中的AP，可以是长期演进(long term evolution，LTE)中的eNB，或者中继站或接入点或接入回传一体化(integrated access and backhaul，IAB)，或者车载设备、可穿戴设备以及未来5G网络中的接入网设备或者未来演进的公共陆地移动网络(public land mobile network，PLMN)网络中的接入网设备，或NR***中的gNB等。另外，在本申请实施例中，接入网设备为小区提供服务，终端设备通过该小区使用的传输资源(例如，频域资源，或者说，频谱资源)与接入网设备进行通信。本申请实施例中的接入网设备可以是指集中单元(central unit，CU)或者分布式单元(distributed unit，DU)。或者，接入网设备也可以是CU和DU组成的。其中，CU和DU在物理上可以是分离的，也可以部署在一起，本申请实施例对此不做具体限定。一个CU可以连接一个DU，或者也可以多个DU共用一个CU，可以节省成本，以及易于网络扩展。CU和DU的切分可以按照协议栈切分，其中一种可能的方式是将RRC、业务数据适配协议栈(service data adaptation protocol，SDAP)以及分组数据汇聚协议(packet data convergence protocol，PDCP)层部署在CU，其余的无线链路控制(radio link control，RLC)层、介质访问控制(media access control，MAC)层以及物理层部署在DU。本申请实施例中并不完全限定上述协议栈切分方式，还可以有其它的切分方式。CU和DU之间通过F1接口连接。CU代表gNB通过Ng接口和核心网连接。本申请实施例中的接入网设备也可以是指集中式单元控制面(CU-CP)节点或者集中式单元用户面(CU-UP)节点，或者，接入网设备也可以是CU-CP和CU-UP。其中CU-CP负责控制面功能，主要包含RRC和PDCP-C。PDCP-C主要负责控制面数据的加解密，完整性保护，数据传输等。CU-UP负责用户面功能，主要包含SDAP和PDCP-U。其中SDAP主要负责将核心网的数据进行处理并将flow映射到承载。PDCP-U主要负责数据面的加解密，完整性保护，头压缩，序列号维护，数据传输等。其中CU-CP和CU-UP通过E1接口连接。CU-CP代表gNB通过Ng接口和核心网连接。通过F1-C(控制面)和DU连接。CU-UP通过F1-U(用户面)和DU连接。当然还有一种可能的实现是PDCP-C也在CU-UP。本申请实施例所提及的接入网设备可以为包括CU、或DU、或包括CU和DU的设备、或者控制面CU节点(CU-CP节点)和用户面CU节点(CU-UP节点)以及DU节点的设备。此外，在其它可能的情况下，接入网设备可以是其 它为终端设备提供无线通信功能的装置。本申请的实施例对接入网设备所采用的具体技术和具体设备形态不做限定。为方便描述，本申请实施例中，为终端设备提供无线通信功能的装置称为接入网设备。
终端设备可以是能够接收接入网设备(或NTN设备)调度和指示信息的设备，终端设备可以是指向用户提供语音和/或数据连通性的设备，或具有无线连接功能的手持式设备、或连接到无线调制解调器的其他处理设备。终端设备可以经无线接入网(如，radio access network，RAN)与一个或多个核心网或者互联网进行通信，终端设备可以是移动终端设备，如移动电话(或称为“蜂窝”电话，手机(mobile phone))、计算机和数据卡，例如，可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置，它们与无线接入网交换语言和/或数据。例如，个人通信业务(personal communications service，PCS)电话、无绳电话、会话发起协议(SIP)话机、无线本地环路(wireless local loop，WLL)站、个人数字助理(personal digital assistant，PDA)、平板电脑(Pad)、带无线收发功能的电脑等设备。终端设备也可以称为***、订户单元(subscriber unit)、订户站(subscriber station)，移动站(mobile station)、移动台(mobile station，MS)、远程站(remote station)、接入点(access point，AP)、远程终端设备(remote terminal)、接入终端设备(access terminal)、用户终端设备(user terminal)、用户代理(user agent)、用户站(subscriber station，SS)、用户端设备(customer premises equipment，CPE)、终端(terminal)、UE、移动终端(mobile terminal，MT)等。终端设备也可以是可穿戴设备以及下一代通信***，例如，5G网络中的终端设备或者未来演进的PLMN网络中的终端设备，NR通信***中的终端设备等。终端设备还可以是与NTN设备通信的终端。
此外，本申请实施例还可以适用于面向未来的其他通信技术，例如第六代移动通信网络(6G)。本申请描述的网络架构以及业务场景是为了更加清楚的说明本申请的技术方案，并不构成对本申请提供的技术方案的限定，本领域普通技术人员可知，随着网络架构的演变和新业务场景的出现，本申请提供的技术方案对于类似的技术问题，同样适用。
为了便于理解本申请实施例，下面先对本申请实施例中涉及的术语作简单说明。
1)、小区切换/小区重选
需要说明的是，小区切换/小区重选主要是保证终端设备在信号质量较好的小区接收服务，但是当终端设备处于不同的状态时，终端的操作是不同的，下面分情况对小区切换/小区重选进行介绍：
1.1)终端设备处于连接态
UE与gNB建立RRC连接后，gNB会下发相关测量配置信息来配置UE的测量行为，当gNB通过UE的测量报告发现有满足要求的目标小区时，gNB就会指示UE执行小区切换。切换流程主要为：
步骤1，gNB通过RRC重配置(RRCReconfiguration)消息将测量配置信息发送至UE。
步骤2，UE根据测量配置信息对小区信号测量，得到小区测量结果。
步骤3，UE通过测量报告将测量结果上报给gNB。
步骤4，gNB根据测量报告判定是否存在合适的新服务小区。
步骤5，gNB确定新服务小区，指示UE执行小区切换。
其中，测量配置信息至少包括以下中的一种或多种：
测量对象(measurement objects)：测量对象是UE需要测量的对象，包括同步信号/物 理广播信道块(synchronization signal/physical broadcast channel block，SSB)/信道状态信息参考信号(channel state information reference signal，CSI-RS)频率、SSB/CSI-RS子载波间隔、基于SSB的测量定时配置(ssb-based measurement timing configuration，SMTC)、白名单小区和黑名单小区。对于LTE来说，一个测量对象指的是一个单独的载波频率；对于NR来说，测量的实质是测量服务小区和邻区的参考信号，所以一个测量对象指的是待测参考信号的时频位置和子载波间隔。NR的测量对象指示了用于基于SSB的测量或者基于CSI-RS的测量的信息。
测量间隔(measurement gaps)：让UE离开当前频点到其他频点测量的时间段，仅异频测量和异***测量时涉及。
报告配置(reporting configurations)：报告配置是触发上报测量报告的标准和测量报告的格式。按照类型分为事件触发上报和周期触发上报。其中，事件触发上报配置包括各种事件类别及门限值、满足触发条件的持续时间、需要上报的测量量以及参考信号类型等，如下述表1所示。
表1
Figure PCTCN2022103146-appb-000001
条件公式中相关变量的具体含义如下：
Ms表示服务小区的测量结果，Mn表示邻区的测量结果。
Hys表示测量结果的幅度迟滞。
TimeToTrig表示持续满足事件进入条件的时长，即时间迟滞。
Thresh、Thresh1、Thresh2表示门限值。
Ofs、Ofn分别表示服务小区、邻区的频率偏置。
Ocs、Ocn分别表示服务小区、邻区的小区偏移量CIO。
Off表示测量结果的偏置。
触发量(triggering quantity)：触发量是触发事件上报的策略。
测量标识(measurement identities)：测量标识将测量对象与报告配置联合起来，作为一个集合。
测量报告上报方式：事件触发的一次上报、事件触发的周期上报、周期性上报。其中，事件触发的一次上报指示当满足某个测量事件的进入门限，并持续一段时间(time to trigger)后，才会触发测量报告的发送，测量报告发送一次后，流程结束。事件触发的周期上报指示当满足某个测量事件的进入门限，并持续一段时间(time to trigger)后，才会触发测量报告的发送。上报被触发后，会开启多次测量之间的定时器(reportinterval)以及测量次数的计数器(reportamount)，直至上报次数达到要求后，流程才结束，而如果计数器为无穷，则会一直周期地上报。周期性上报指示UE按照规定的报告间隔(reportinterval)发送测量报告。
触发量：即为触发事件上报的策略的参量，包括以下中的一种或多种：
RSRP：反映参考信号的接收强度。
RSSI：反映当前信号的总信号强度。
RSRQ：反映当前信号质量的信噪比和干扰水平，近似RSRP与RSSI的比值。
SINR：反映当前信号的信干比，是衡量UE性能的一个重要指标。
切换策略所使用的测量事件主要是基于SSB的RSRP、基于SSB的RSRQ作为触发量，即测量事件对应的触发量为RSRP、RSRQ。
仅RSRP触发：表示测量触发和停止过程基于RSRP进行。gNB仅下发RSRP的事件测量控制，UE根据测量控制信息进行测量，当UE判决某测量频点(或某测量小区)的RSRP满足对应事件的进入条件时，UE上报测量报告。
RSRP和RSRQ同时触发：表示测量触发和停止过程基于RSRP和RSRQ进行，且基于RSRP的过程和基于RSRQ的过程互不影响，独立进行。gNB同时下发RSRP和RSRQ的事件测量控制，UE根据测量控制信息进行测量，当UE判决某测量频点(或某测量小区)的RSRP或RSRQ满足事件的进入条件时，UE都上报测量报告。
RSRP触发RSRQ过滤：表示测量触发和停止过程基于RSRP进行，但是测量报告会同时包含RSRP和RSRQ的测量结果，通过RSRQ的测量结果进行邻区过滤。gNB同时下发RSRP和RSRQ的事件测量控制，UE根据测量控制信息进行测量，当UE判决某测量频点(或某测量小区)的RSRP满足对应事件的进入条件时，UE上报测量报告，且该测量报告中同时包含RSRP和RSRQ的测量结果。gNB收到测量报告后，gNB根据RSRP测量结果生成候选小区列表或候选频点列表，并根据RSRQ测量结果对候选小区进行过滤。
典型的非周期测量反馈，UE根据gNB的测量配置信息进行，对给定的一个或多个参考信号进行测量，如果发现测得结果满足某个触发条件(例如高于阈值)，则触发一个上报事件，将测量结果反馈给gNB。gNB根据UE的反馈综合决策UE是否发生切换或者进行相应的资源调度。
1.2)终端设备处于非连接态
小区重选整体流程包括启动邻区测量、重选评估判决、小区重选三个阶段。
类似于连接态，gNB对UE的测量和重选行为进行配置，但非连接态UE测量的目的不同。测量配置信息至少包括：
启动邻区测量的标准：
UE启动邻区测量需要满足一定条件，根据这个条件在当前服务小区上进行判决，判决通过后UE才启动邻区测量。这样做是为了通过限制测量动作来为UE节能省电。UE启动邻区测量后，会分别计算当前服务小区和邻区的R值(R准则变量，体现小区的信号质量等级)，并排队进行小区重选判决。是否启动邻区测量主要考虑小区重选优先级、当前服务小区的信号质量两个因素。服务小区的R值R s和邻区的R值R n可以参阅3GPP协议的TS38.304中的相关描述，这里不再展开说明。
若邻区优先级高于服务小区：不管服务小区的信号质量有多好，UE都会无条件启动邻区测量。
若邻区优先级低于或等于服务小区：UE会测量当前服务小区的信号质量，将其与网络下发的信号质量标准比较。
如果优于这个信号质量标准，就不启动邻区测量。
如果低于或等于这个信号质量标准，就启动邻区测量。
重选评估判决:
邻区测量完成后，UE开始评估判决是否执行小区重选到邻区。不同优先级的邻小区有不同的判决方式。以相同优先级为例，同等优先级小区重选依据R准则进行：计算每一个邻区和当前服务小区的小区信号质量等级；然后根据小区信号质量等级排序，选择小区信号质量等级最大或接近最大的小区；最后在这些小区中，选择波束信号质量满足要求的波束个数最多的小区作为最好小区，并称该小区满足小区重选准则。如果选择出的最好小区持续在TreselectionNR期间一直满足小区重选准则，且UE在当前服务小区驻留超过1s，则UE启动向该邻区的小区重选。
小区重选执行：
完成邻区测量并确认存在符合小区重选条件的新小区后，UE将开始尝试驻留到新的小区。UE搜索目标小区。UE接收目标小区的***消息，如果无接入受限(如通过目标小区的***消息判断目标小区是否禁止(barred)、是否预留(reserved)等)，则驻留到目标小区，即重选到目标小区。否则，UE仍然驻留在当前服务小区。
2)地面共轨迹卫星链：包括一组具有相同的轨道倾角，但每颗卫星都在离散的轨道上，在地面上投影轨迹相同的卫星。例如图5A所示，其中，卫星1、卫星2以及卫星3为一组具有相同轨道倾角的卫星，在地面的投影轨迹均为轨迹1。为了使得地面共轨迹卫星链在地面上的轨迹相同，卫星链上所有卫星除了轨道倾角需要相同外，任意两颗卫星的升交点赤经(right ascension of the ascending node，RAAN)差(升交点赤经差，其中升交点为卫星从南半球穿过赤道到北半球的点)和升交角距(argument of latitude，AoL)差(升交角距差，其中升交角距差指示行星或卫星在其轨道上任一位置和升交点的角距离)的比例相同，并且该比例能补偿地球自转以及轨道摄动引起的经度漂移，即满足以下公式：
Figure PCTCN2022103146-appb-000002
其中，ω E是地球自转角速度，n 0是卫星运动角速度；
Figure PCTCN2022103146-appb-000003
为升交点赤经的轨道摄动量；
Figure PCTCN2022103146-appb-000004
为平近点角的轨道摄动量；
Figure PCTCN2022103146-appb-000005
为近地点角距的轨道摄动量；δRAAN为卫星轨道之间的升交点赤经差，δAoL为卫星之间的升交角距差。
如下图5B所示，卫星S1和卫星S2是地面共轨迹卫星链上的两颗卫星，卫星S1和卫星S2都在独立的轨道上，轨道的倾角I都是相同的。在t1时刻卫星S1由南向北经过赤道，其地面投影正好位于UE处，卫星S2在赤道南面并在S1的西面；由于地球的自转在t2时刻卫星S2也经过了赤道上的同一点，其地面投影也正好位于UE处(假设UE相对地球静止不动)。卫星S1和卫星S2虽然在不同轨道上运行，但它们在地面上的运动轨迹却是相同的。
3)地面共轨迹星座：由一条或多条于地面共轨迹卫星链所组成的星座。
4)传统卫星轨道和其中的卫星：同一轨道内的不同卫星高度、RAAN、轨道倾角都相同，但给定参考靠时间下卫星在轨道内位置不同。
5)超小区(hypercell)：在现有的地面通信网络中，常常把隧道或者高铁中的多个基站看作一个小区中的多个TRP，将多个TRP配置成1个逻辑小区，各个TRP采用相同的物理小区标识(physical cell identity document，PCI)、全球小区标识(cell global identity document，CGI)、频点和带宽。由于各个TRP采用相同的PCI和CGI，UE在TRP间移动时感知不到多个TRP的存在，所以不需要切换小区。
超小区有多种不同的实现方式，其根本目的是减少超小区内不同TRP切换的开销，改善覆盖区域边缘的UE性能。一种典型的hypercell实现方式如下：
各个TRP采用相同的PCI、CGI、频点和带宽。由于各个TRP采用相同的PCI和CGI，UE在TRP间移动时感知不到多个TRP的存在，所以不需要切换小区。
需要说明的是，现有的终端设备在连接态进行小区切换的方法，可以沿用到NTN***中，但是对于卫星通信这类场景，基于较短或者短时间测量结果的决策不一定在更长时间内优选合适的服务小区(也即卫星覆盖下的小区)。如图6所示场景，UE可与两个不同轨道的卫星传输数据，每个轨道的卫星可看做一个卫星系列，其中的卫星沿着箭头方向运动并顺序覆盖UE。其中系列#2的卫星较系列#1的卫星较UE的位置更近，但由于地形原因卫星3和UE之间存在遮挡。
由于距离UE更近，时间片内系列#2中的卫星覆盖质量更优，但是因为存在遮挡造成信号剧烈恶化，UE感知的信号随时间变化如图6所示，UE感知的时间片内系列#1中的卫星信号随时间变化如图6所示。
从短时间来看，UE连接或者驻留在系列#2中的卫星更合适，但需要在一段时间连接或者驻留到其他轨道卫星中，会出现信号中断以及其他信令开销的情况。因而从长时间来看，将UE连接保持在系列#1的卫星中更为合适。但是，现有测量上报机制缺少长时间颗粒度的测量和上报，UE依然会选择系列#2中的卫星连接或驻留，无法有效利用上述卫星场景强可预测性特性，造成用户体验不够优，且测量上报时间范围没有针对卫星覆盖的针对性配置。此外，基于周期触发上报可实现获取长期信号质量的效果，但是频繁上报的开销很大，对于只需要获取测量统计特征的长期上报，频发上报造成开销过大。
现有的终端设备在非连接态进行小区重选的方法，在应用到NTN***时，当前重选机制缺少利用之前卫星的覆盖信息进行最优决策的机制，容易只基于短期测量进行决策，造成不必要的来回重选。
考虑到上述情况，本申请提供一种信号测量方法，在对测量对象和起止时间范围有明确的约束的情况下，减少不必要的切换和重选，进而减少信令开销、保证信号通信质量的情况下，以应用于小区切换、重选以及接入的场景中。在下文介绍时，以该方法应用于图1和图2所示的通信架构为例。可以以终端、第一网络设备(如图1和图2中的第一网络设备，或者也可称为卫星基站)之间的数据交互为例来说明。需要说明的是，本申请实施例只是以通过图1和图2的通信***举例，并不限制于这种场景。图7中以终端、第一网络设备之间的数据交互为例来说明。
步骤701，终端获取测量配置信息，测量配置信息包括至少一个卫星小区的信息以及测量时间范围，至少一个卫星小区中包括第一卫星小区，第一卫星小区的测量时间范围为第一卫星小区的覆盖范围位于第一区域的时间长度的全部或部分，第一区域为终端所在的区域。
需要说明的是，该测量配置信息可来自于第一网络设备。若终端已经接入网络，第一网络设备可以获取终端的位置信息，且可知晓哪些卫星可以覆盖终端所在的区域，那么第一网络设备可将这些卫星小区的信息以及卫星小区的测量时间范围发送给终端，以便终端对卫星小区的信号进行测量。当然还存在终端未接入网络的情况，可能存在多个第一网络设备可将其服务的卫星小区的信息以及卫星小区的测量时间范围通过参考信号下发，若终端能够接收该参考信号，则可获取测量配置信息。
可选的，在执行步骤701之前，可执行步骤700，第一网络设备发送测量配置信息。
另外，还要说明的是，终端所在的区域可能被多个卫星小区覆盖，因此测量配置信息中可以包括多个卫星小区的信息，不同的卫星小区的信息可通过不同的小区标识指示，如PCI，CGI等。
由于终端的位置和卫星的位置可能是不断变化的，因此上述的测量配置信息可以是定期更新，如每天更新、或者10小时更新一次等，也可以基于终端位置的变化触发更新，如终端处于位置1(位于南半球)获取的测量配置信息与终端处于位置2(位于北半球)获取的测量配置信息不同，本申请在此不具体限定。
可选的，至少一个卫星小区对应的卫星，包括第一卫星系列中和第二卫星系列中的卫星，其中，同一卫星系列中的卫星的轨道相同(也即位于同一轨道中)或在地面投影轨迹相同的卫星(也即为地面共轨迹卫星链中的卫星)。此外，测量配置信息还可包括第一卫星系列的系列标识以及第二卫星系列的系列标识。如图8所示，终端周围包括4个系列的卫星，测量配置信息包括4个系列的卫星小区信息以及测量时间范围，终端则需对4个系列的卫星小区的信号质量进行测量。
对于传统轨道卫星也即同一轨道的卫星来说，终端可视的多个系列的卫星如图8所示。例如，可通过每个系列卫星所在的轨道信息(包含高度、倾角、升交点角度)确定卫星所在的轨道，再通过相比较于轨道上约定参考点的角度偏移量范围(例如当前卫星位置和升交点对地心的张角)描述轨道内的范围。如图9A所示，某个系列的卫星所在的区域为PH1～PH2之间的区域。
如下表2所示，其中轨道高度信息、倾角等重复信息略去(如果不同，则不可略去)。第一网络设备可将较大范围的卫星星历信息告知终端，再告知该系列卫星的选择标准。终端可在给定时间计算该系列对应的轨道的卫星的实时位置，再比较这些卫星是否处于该系列卫星所要求的特定区域内，若是，则表示该卫星属于该特定卫星系列。卫星系列1的升 交点高度为RAAN1，所在区域为[PH11，PH12]，该卫星系列1的卫星小区测量时间范围为t1s(测量起始时间)-t1e(测量截止时间)。
表2
Figure PCTCN2022103146-appb-000006
需要说明的是，上述表2是针对传统轨道卫星进行说明，但是不同卫星系列中可能是包括多颗卫星的，不同的卫星小区可通过不同的小区标识进行指示，如PCI、CGI等，且同一系列中不同卫星小区的测量起止时间不同，不同的卫星小区对应的测量频点可能是相同的也可能是不同的，例如相邻卫星小区的测量频点是不同的，不相邻卫星小区的测量频点可以配置相同的。测量配置信息可如下述表3所示，假定卫星系列1为当前服务终端的卫星系列，该卫星系列中包括多个卫星小区，不同的卫星小区通过不同的PCI指示，如，PCI为ID#1a，卫星小区的测量时间范围为t1a-s(测量起始时间)～t1a-e(测量截止时间)，测量频点为1a、SCS1a。在此仅示例性说明并不对卫星小区的标识、测量时间范围以及测量频点进行具体限定。当然在实际应用时，测量配置信息中，还可能包括其他信息，在此不一一示意。
表3
Figure PCTCN2022103146-appb-000007
对于在地面投影轨迹相同的卫星来说，例如，可通过每个系列卫星所在的轨道信息(包含高度、倾角、起始RAAN、起始AoL)确定卫星所在的轨道，再通过相比较于轨道上约定的参考点(轨道和赤道某个交点、或者起始RAAN和起始AoL)偏移量范围描述轨道内 的范围。如图9B所示，某个系列的卫星所在的区域为PH11～PH12之间的区域。
如下表4所示，其中轨道高度信息、倾角等重复信息略去(如果不同，则不可略去)。第一网络设备可将较大范围的卫星星历信息告知终端，再告知该系列卫星的选择标准。终端可在给定时间计算该系列对应的轨道的卫星的实时位置，再比较这些卫星是否处于该系列卫星所要求的特定区域内，若是，则表示该卫星属于该特定卫星系列。卫星系列2的起始RAAN为RANN1、起始AoL为AoL1，所在区域为[PH21，PH22]，该卫星系列2的卫星小区测量时间范围为t2s(测量起始时间)-t2e(测量截止时间)。
表4
Figure PCTCN2022103146-appb-000008
需要说明的是，上述表4是针对地面共轨迹卫星链中的卫星进行说明，但是不同卫星系列中可能是包括多颗卫星的，不同的卫星小区可通过不同的小区标识进行指示，如PCI、CGI等，且同一系列中不同卫星小区的测量起止时间不同，且不同的卫星小区对应的测量频点可能是相同的也可能是不同的，例如相邻卫星小区测量频点是不同的，不相邻卫星小区测量频点可以配置相同的。测量配置信息可如下述表5所示，假定卫星系列1为当前服务终端的卫星系列，该卫星系列中包括多个卫星小区，不同的卫星小区通过不同的PCI指示，如，PCI为ID#1a，卫星小区的测量时间范围为t1a-s(测量起始时间)～t1a-e(测量截止时间)，测量频点为频点1、SCS1。在此仅示例性说明并不对卫星小区的标识、测量时间范围以及测量频点进行具体限定。
表5
Figure PCTCN2022103146-appb-000009
对于表3中配置每个卫星小区测量时间范围的时间偏移量相同，可减少指令开销，为 了不失一般性，上述表5中，配置每个卫星小区测量时间范围的时间偏移量通过△和δ示意，△和δ可以是相同的，也可以是不同的，本申请在此不具体限定。
步骤702，终端根据测量配置信息，对第一区域内至少一个卫星小区的信号进行测量，得到测量值，其中，测量值用于指示测量时间范围内至少一个卫星小区的信号质量波动。可选的，测量值，包括第一卫星系列的测量值和第二卫星系列的测量值。通常终端会测量第一卫星系列中的卫星的卫星小区和第二卫星系列中的卫星的卫星小区的测量值，当然在实际应用时，测量配置信息中包括多个卫星系列时，终端会根据多个卫星系列的测量配置信息，对多个卫星系列的卫星小区的信号进行测量，之后对不同卫星系列的测量值进行比较确定那个卫星系列的卫星小区的信号质量波动较大。由于不同卫星系列的测量值是类似的，在此仅以终端在第一卫星小区的测量时间范围内测量到N个信号质量参数，第一卫星小区的测量值，包括以下至少一项：
测量值1：N个信号质量参数中信号最差的信号质量参数。
需要说明的是，通常信号质量参数通过以下中的一种指示：RSRP、RSSI、RSRQ以及SINR，或者上述几种参数的变型，如上述1.1)中介绍的触发量，RSRP触发RSRQ过滤等，本申请在此不具体限定。
在实际应用时，一个卫星可能覆盖多个卫星小区，本文在此简化描述，仅以一个卫星下一个卫星小区为例来说明，但是在实际应用时，并不对卫星覆盖的小区数量进行限定。
假定，N大于1，则将N个信号质量参数中信号最差的信号质量参数作为测量值，可以通过如下示例来理解，假定信号质量参数为RSRP，第一卫星系列卫星中包括3个卫星，分别为卫星1、卫星2以及卫星3，卫星1覆盖卫星小区1，卫星2覆盖卫星小区2，卫星3覆盖卫星小区3。卫星小区1的测量时间范围为时刻1～时刻2，卫星小区2的测量时间范围为时刻3～时刻4，卫星小区3的测量时间范围为时刻5～时刻6。在时刻1～时刻2终端测量到卫星小区1的最差RSRP为X1，在时刻3～时刻4终端测量到卫星小区2的最差RSRP为X2，在时刻5～时刻6，终端测量到卫星小区3的最差RSRP为X3，其中，X1小于X2，X2小于X3，因此测量值1为卫星小区3的最差RSRP，即X1。
假定测量配置信息中还包括1个第二卫星系列中卫星小区的信息以及测量时间范围，第二卫星系列包括2个卫星，卫星A和卫星B，卫星A覆盖卫星小区A1，卫星B覆盖卫星小区B1。卫星小区A1的测量时间范围为时刻1～时刻2，卫星小区B1的测量时间范围为时刻7～时刻8。在时刻1～时刻2终端测量到卫星小区A1的最差RSRP为Y1，在时刻7～时刻8终端测量到卫星小区B1的最差RSRP为Y2，其中，Y1小于Y2，因此测量值1为卫星A的卫星小区A1的最差RSRP，即Y1。
但是X1小于Y1，由于最差RSRP越小表示卫星小区信号越不稳定，由此可知，第二卫星系列中卫星小区的信号质量更稳定，第一卫星系列中卫星小区的信号质量波动较大。
测量值2：N个信号质量参数的方差。
假定N大于1，则将N个信号质量参数的方差作为测量值，可以通过如下示例来理解，假定信号质量参数为RSRP，第一卫星系列卫星中包括3个卫星，分别为卫星1、卫星2以及卫星3，卫星1覆盖小区1，卫星2覆盖卫星小区2，卫星3覆盖卫星小区3。卫星小区1的测量时间范围为时刻1～时刻2，卫星小区2的测量时间范围为时刻3～时刻4，卫星小区3的测量时间范围为时刻5～时刻6。终端测量时刻1～时刻2卫星小区1的RSRP，并计算卫星小区1的RSRP的方差值也即方差1；终端测量时刻3～时刻4卫星小区2的RSRP， 并计算卫星小区2的RSRP的方差值也即方差2；终端测量时刻5～时刻6卫星小区3的RSRP，并计算卫星小区3的RSRP的方差值也即方差3；因此测量值2为方差1、方差2以及方差3。其中，方差1小于方差2，方差2小于方差3。
假定测量配置信息中还包括1个第二卫星系列中卫星小区的信息以及测量时间范围，第二卫星系列包括2个卫星，卫星A和卫星B，卫星A覆盖卫星小区A1，卫星B覆盖卫星小区B1。卫星小区A1的测量时间范围为时刻1～时刻2，卫星小区B1的测量时间范围为时刻7～时刻8。终端测量时刻1～时刻2卫星小区A1的RSRP，并计算卫星小区1的RSRP的方差值也即方差4；终端测量时刻7～时刻8卫星小区B1的RSRP，并计算卫星小区B1的RSRP的方差值也即方差5；因此测量值2为方差4以及方差5。其中，方差4小于方差5。
但是方差3小于方差5，由于方差值越小表示卫星小区信号越稳定，由此可知第二卫星系列中卫星小区的信号质量波动较大，第一卫星系列中卫星小区的信号质量稳定。
测量值3：N个信号质量参数的方差与信号质量参数的平均值的比值。
假定N大于1，则将N个信号质量参数的方差与信号质量参数的平均值的比值作为测量值，可以通过如下示例来理解，假定信号质量参数为RSRP，第一卫星系列卫星中包括3个卫星，分别为卫星1、卫星2以及卫星3，卫星1覆盖小区1，卫星2覆盖小区2，卫星3覆盖小区3。卫星小区1的测量时间范围为时刻1～时刻2，卫星小区2的测量时间范围为时刻3～时刻4，卫星小区3的测量时间范围为时刻5～时刻6。终端测量时刻1～时刻2卫星小区1的RSRP，并计算卫星小区1的RSRP的方差值与RSRP的平均值的比值也即比值1；终端测量时刻3～时刻4卫星小区2的RSRP，并计算卫星小区2的RSRP的方差值与RSRP的平均值的比值也即比值2；终端测量时刻5～时刻6卫星小区3的RSRP，并计算卫星小区3的RSRP的方差值与RSRP的平均值的比值也即比值3；因此测量值3为比值1、比值2以及比值3。其中，比值1小于比值2，比值2小于比值3。
假定测量配置信息中还包括1个第二卫星系列中卫星小区的信息以及测量时间范围，第二卫星系列包括2个卫星，卫星A和卫星B，卫星A覆盖卫星小区A1，卫星B覆盖卫星小区B1。卫星小区A1的测量时间范围为时刻1～时刻2，卫星小区B1的测量时间范围为时刻7～时刻8。终端测量时刻1～时刻2卫星小区A1的RSRP，并计算卫星小区1的RSRP的方差值与RSRP的平均值的比值也即比值4；终端测量时刻7～时刻8卫星小区B1的RSRP，并计算卫星小区B1的RSRP的方差值与RSRP的平均值的比值也即比值5；因此测量值3为比值4以及比值5。其中，比值4小于比值5。
但是比值3小于比值5，由于比值越小表示卫星小区信号越稳定，由此可知第二卫星系列中卫星小区的信号质量波动较大，第一卫星系列中卫星小区的信号质量稳定。
测量值4：N个信号质量参数中高于第一质量参数阈值的信号质量参数对应时间段的第一时间长度以及起止时间。
假定N大于1，则将N个信号质量参数中高于第一质量参数阈值的信号质量参数对应时间段的第一时间长度以及起止时间作为测量值，可以通过如下示例来理解，假定信号质量参数为RSRP，第一卫星系列卫星中包括3个卫星，分别为卫星1、卫星2以及卫星3，卫星1覆盖卫星小区1，卫星2覆盖卫星小区2，卫星3覆盖卫星小区3。卫星小区1的测量时间范围为时刻1～时刻2，卫星小区2的测量时间范围为时刻3～时刻4，卫星小区3的测量时间范围为时刻5～时刻6。终端测量时刻1～时刻2卫星小区1的RSRP，并计算卫星 小区1的RSRP的高于第一质量参数阈值W的时间长度以及该时间长度的起止时间(如，终端在时刻1～时刻2测量得到卫星小区1的RSRP，在时刻1.2～时刻1.8终端测量的卫星小区1的RSRP高于W，则将0.6(1.8-1.2＝0.6)记录为第一时间长度，将时刻1.2～时刻1.8记录为第一时间长度的起止时间，并将0.6以及时刻1.2～1.8作为测量值4)；终端测量时刻3～时刻4卫星小区2的RSRP，并计算卫星小区2的RSRP的高于W的时间长度以及该时间长度的起止时间(如，终端在时刻3～时刻4测量得到卫星小区2的RSRP，在时刻3.1～时刻3.2终端测量的卫星小区2的RSRP高于W，在时刻3.5～时刻3.9终端测量的卫星小区2的RSRP高于W，则将0.6((3.2-3.1)+(3.9-3.5)＝0.5)记录为第一时间长度，将时刻3.1～时刻3.2和时刻3.5～时刻3.9分别记录为第一时间长度的起止时间，并将0.6以及时刻3.1～时刻3.2和时刻3.5～时刻3.9作为测量值4)；终端测量时刻5～时刻6卫星小区3的RSRP，并计算卫星小区3的RSRP的高于W的时间长度以及该时间长度的起止时间，(如，终端在时刻5.5～时刻5.7测量得到卫星小区3的RSRP高于W，则将0.2(5.7-5.5＝0.2)记录为第一时间长度，将时刻5.5～时刻5.7记录为第一时间长度的起止时间，并将0.2以及时刻5.5～5.7作为测量值4)。其中，0.2小于0.5，0.5小于0.6。
假定测量配置信息中还包括1个第二卫星系列中卫星小区的信息以及测量时间范围，第二卫星系列包括2个卫星，卫星A和卫星B，卫星A覆盖卫星小区A1，卫星B覆盖卫星小区B1。卫星小区A1的测量时间范围为时刻1～时刻2，卫星小区B1的测量时间范围为时刻7～时刻8。终端测量时刻1～时刻2卫星小区A1的RSRP，并计算卫星小区A1的RSRP的高于第一质量参数阈值W的时间长度以及该时间长度的起止时间(如，终端在时刻1～时刻2测量得到卫星小区1的RSRP，在时刻1.5～时刻1.8终端测量的卫星小区A1的RSRP高于W，则将0.3(1.8-1.5＝0.3)记录为第一时间长度，将时刻1.5～时刻1.8记录为第一时间长度的起止时间，并将0.3以及时刻1.5～1.8作为测量值4)；终端测量时刻7～时刻8卫星小区B1的RSRP，并计算卫星小区B1的RSRP的高于W的时间长度以及该时间长度的起止时间(如，终端在时刻7～时刻8测量得到卫星小区B1的RSRP，在时刻7.1～时刻7.9终端测量的卫星小区B1的RSRP高于W，在时刻7.1～时刻7.9终端测量的卫星小区B1的RSRP高于W，则将0.8(7.9-7.1＝0.8)记录为第一时间长度，将时刻7.1～时刻7.9记录为第一时间长度的起止时间，并将0.8以及时刻7.1～时刻7.9作为测量值4)。其中，0.3小于0.8。
但是大于阈值的时间长度0.2小于0.3，由于第一时间长度越长表示卫星小区信号越稳定，由此可知第一卫星系列中卫星小区的信号质量波动较大，第二卫星系列中卫星小区的信号质量稳定。
测量值5：N个信号质量参数中低于第二质量参数阈值的信号质量参数对应时间段的第二时间长度以及起止时间。
需要说明的是，测量值5中所示的第二质量参数阈值可以与上述测量值4中的第一质量参数阈值设置为相同的值，也可以设置为不同的值，本申请在此不具体限定，下述以第一质量参数阈值与第二质量参数阈值不同为例来说明。
假定N大于1，则将N个信号质量参数中低于第二质量参数阈值的信号质量参数对应时间段的第二时间长度以及起止时间作为测量值，可以通过如下示例来理解，假定信号质量参数为RSRP，第一卫星系列卫星中包括3个卫星，分别为卫星1、卫星2以及卫星3，卫星1覆盖小区1，卫星2覆盖小区2，卫星3覆盖卫星小区3。卫星小区1的测量时间范 围为时刻1～时刻2，卫星小区2的测量时间范围为时刻3～时刻4，卫星小区3的测量时间范围为时刻5～时刻6。终端测量时刻1～时刻2卫星小区1的RSRP，并计算卫星小区1的RSRP的低于第二质量参数阈值S的时间长度以及该时间长度的起止时间(如，终端在时刻1～时刻2测量得到卫星小区1的RSRP，在时刻1.8～时刻2终端测量的卫星小区1的RSRP低于S，则将0.2(2-1.8＝0.2)记录为第二时间长度，将时刻1.8～时刻2记录为第二时间长度的起止时间，并将0.2以及时刻1.8～时刻2作为测量值5)；终端测量时刻3～时刻4卫星小区2的RSRP，并计算卫星小区2的RSRP的低于S的时间长度以及该时间长度的起止时间(如，终端在时刻3～时刻4测量得到卫星小区2的RSRP，在时刻3.3～时刻3.5终端测量的卫星小区2的RSRP低于S，在时刻3.9～时刻4终端测量的卫星小区2的RSRP低于S，则将0.3((3.5-3.3)+(4-3.9)＝0.3)记录为第二时间长度，将时刻3.3～时刻3.5和时刻3.9～时刻4分别记录为第二时间长度的起止时间，并将0.3以及时刻3.3～时刻3.5和时刻3.9～时刻4作为测量值5)；终端测量时刻5～时刻6卫星小区3的RSRP，并计算卫星小区3的RSRP的低于S的时间长度以及该时间长度的起止时间，(如，终端在时刻5～时刻5.5测量得到卫星小区3的RSRP低于S，则将0.5(5.5-5＝0.5)记录为第二时间长度，将时刻5～时刻5.5记录为第二时间长度的起止时间，并将0.5以及时刻5～5.5作为测量值5)。其中，0.2小于0.3，0.3小于0.5。
假定测量配置信息中还包括1个第二卫星系列中卫星小区的信息以及测量时间范围，第二卫星系列包括2个卫星，卫星A和卫星B，卫星A覆盖卫星小区A1，卫星B覆盖卫星小区B1。卫星小区A1的测量时间范围为时刻1～时刻2，卫星小区B1的测量时间范围为时刻7～时刻8。终端测量时刻1～时刻2卫星小区A1的RSRP，并计算卫星小区A1的RSRP的低于第二质量参数阈值S的时间长度以及该时间长度的起止时间(如，终端在时刻1～时刻2测量得到卫星小区A1的RSRP，在时刻1.5～时刻1.8终端测量的卫星小区A1的RSRP低于S，则将0.3(1.8-1.5＝0.3)记录为第二时间长度，将时刻1.5～时刻1.8记录为第二时间长度的起止时间，并将0.3以及时刻1.5～1.8作为测量值5)；终端测量时刻7～时刻8卫星小区B1的RSRP，并计算卫星小区B1的RSRP的低于S的时间长度以及该时间长度的起止时间(如，终端在时刻7～时刻8测量得到卫星小区B1的RSRP，在时刻7.1～时刻7.9终端测量的卫星小区B1的RSRP低于S，在时刻7.1～时刻7.9终端测量的卫星小区B1的RSRP低于S，则将0.8(7.9-7.1＝0.8)记录为第二时间长度，将时刻7.1～时刻7.9记录为第二时间长度的起止时间，并将0.8以及时刻7.1～时刻7.9作为测量值5)。其中，0.3小于0.8。
但是低于第二质量参数阈值的信号质量参数对应时间段0.5小于0.8，由于第二时间长度越长表示卫星小区信号越不稳定，由此可知第二卫星系列中卫星小区的信号质量波动较大，第一卫星系列中卫星小区的信号质量稳定。
测量值6：第一时间长度与第一卫星小区的测量时间范围的比值。
假定N大于1，则将第一时间长度与第一卫星小区的测量时间范围的比值作为测量值，可以通过如下示例来理解，假定信号质量参数为RSRP，第一卫星系列卫星中包括3个卫星，分别为卫星1、卫星2以及卫星3，卫星1覆盖小区1，卫星2覆盖小区2，卫星3覆盖小区3。卫星小区1的测量时间范围为时刻1～时刻2，卫星小区2的测量时间范围为时刻3～时刻4，卫星小区3的测量时间范围为时刻5～时刻6。终端测量时刻1～时刻2卫星小区1的RSRP，并计算卫星小区1的RSRP的高于第一质量参数阈值W的时间长度与该测 量时间范围的比值(如，终端在时刻1～时刻2测量得到卫星小区1的RSRP，在时刻1.2～时刻1.8终端测量的卫星小区1的RSRP高于W，则将0.6((1.8-1.2＝0.6)/(2-1＝1))记录为测量值6)；终端测量时刻3～时刻4卫星小区2的RSRP，并计算卫星小区2的RSRP的高于W的时间长度与该测量时间范围的比值(如，终端在时刻3～时刻4测量得到卫星小区2的RSRP，在时刻3.1～时刻3.2终端测量的卫星小区2的RSRP高于W，在时刻3.5～时刻3.9终端测量的卫星小区2的RSRP高于W，则将0.6(((3.2-3.1)+(3.9-3.5)＝0.5)/(4-3)＝0.6)记录为测量值6)；终端测量时刻5～时刻6卫星小区3的RSRP，并计算卫星小区3的RSRP的高于W的时间长度与该测量时间范围的比值(如，终端在时刻5.5～时刻5.7测量得到卫星小区3的RSRP高于W，则将0.2((5.7-5.5＝0.2)/(6-5)＝0.2)记录为测量值6)。其中，0.2小于0.5，0.5小于0.6。
假定测量配置信息中还包括1个第二卫星系列中卫星小区的信息以及测量时间范围，第二卫星系列包括2个卫星，卫星A和卫星B，卫星A覆盖卫星小区A1，卫星B覆盖卫星小区B1。卫星小区A1的测量时间范围为时刻1～时刻2，卫星小区B1的测量时间范围为时刻7～时刻8。终端测量时刻1～时刻2卫星小区A1的RSRP，并计算卫星小区A1的RSRP的高于第一质量参数阈值W的时间长度与该测量时间范围的比值(如，终端在时刻1～时刻2测量得到卫星小区1的RSRP，在时刻1.5～时刻1.8终端测量的卫星小区A1的RSRP高于W，则将0.3((1.8-1.5＝0.3)/(2-1))记录为测量值6)；终端测量时刻7～时刻8卫星小区B1的RSRP，并计算卫星小区B1的RSRP的高于W的时间长度与该测量时间范围的比值(如，终端在时刻7～时刻8测量得到卫星小区B1的RSRP，在时刻7.1～时刻7.9终端测量的卫星小区B1的RSRP高于W，在时刻7.1～时刻7.9终端测量的卫星小区B1的RSRP高于W，则将0.8((7.9-7.1＝0.8)/(8-7))记录为测量值6)。其中，0.3小于0.8。
但是0.2小于0.3，由于比值越大表示卫星小区信号越稳定，由此可知第一卫星系列中卫星小区的信号质量波动较大，第二卫星系列中卫星小区的信号质量稳定。
测量值7：第二时间长度与第一卫星小区的测量时间范围的比值。
假定N大于1，则将第二时间长度与第一卫星小区的测量时间范围的比值作为测量值，可以通过如下示例来理解，假定信号质量参数为RSRP，第一卫星系列卫星中包括3个卫星，分别为卫星1、卫星2以及卫星3，卫星1覆盖小区1，卫星2覆盖小区2，卫星3覆盖小区3。卫星小区1的测量时间范围为时刻1～时刻2，卫星小区2的测量时间范围为时刻3～时刻4，卫星小区3的测量时间范围为时刻5～时刻6。终端测量时刻1～时刻2卫星小区1的RSRP，并计算卫星小区1的RSRP的低于第二质量参数阈值S的时间长度与该测量时间范围的比值(如，终端在时刻1～时刻2测量得到卫星小区1的RSRP，在时刻1.8～时刻2终端测量的卫星小区1的RSRP低于S，则将0.2((2-1.8＝0.2)/(2-1＝1))记录为测量值7)；终端测量时刻3～时刻4卫星小区2的RSRP，并计算卫星小区2的RSRP的低于S的时间长度与该测量时间范围的比值(如，终端在时刻3～时刻4测量得到卫星小区2的RSRP，在时刻3.3～时刻3.5终端测量的卫星小区2的RSRP低于S，在时刻3.9～时刻4终端测量的卫星小区2的RSRP低于S，则将0.3(((3.5-3.3)+(4-3.9)＝0.3)/(4-3))记录为测量值7)；终端测量时刻5～时刻6卫星小区3的RSRP，并计算卫星小区3的RSRP的低于S的时间长度与该测量时间范围的比值(如，终端在时刻5～时刻5.5测量得到卫星小区3的RSRP低于S，则将0.5((5.5-5＝0.5)/(6-5))记录为测量值7)。其中，0.2小 于0.3，0.3小于0.5。
假定测量配置信息中还包括1个第二卫星系列中卫星小区的信息以及测量时间范围，第二卫星系列包括2个卫星，卫星A和卫星B，卫星A覆盖卫星小区A1，卫星B覆盖卫星小区B1。卫星小区A1的测量时间范围为时刻1～时刻2，卫星小区B1的测量时间范围为时刻7～时刻8。终端测量时刻1～时刻2卫星小区A1的RSRP，并计算卫星小区A1的RSRP的低于第二质量参数阈值S的时间长度与该测量时间范围的比值(如，终端在时刻1～时刻2测量得到卫星小区A1的RSRP，在时刻1.5～时刻1.8终端测量的卫星小区A1的RSRP低于S，则将0.3((1.8-1.5＝0.3)/(2-1))记录为测量值7)；终端测量时刻7～时刻8卫星小区B1的RSRP，并计算卫星小区B1的RSRP的低于S的时间长度与该测量时间范围的比值(如，终端在时刻7～时刻8测量得到卫星小区B1的RSRP，在时刻7.1～时刻7.9终端测量的卫星小区B1的RSRP低于S，在时刻7.1～时刻7.9终端测量的卫星小区B1的RSRP低于S，则将0.8((7.9-7.1＝0.8)/(8-7))记录为测量值7)。其中，0.3小于0.8。
但是0.5小于0.8，由于该比值越长表示卫星小区信号越不稳定，由此可知第二卫星系列中卫星小区的信号质量波动较大，第一卫星系列中卫星小区的信号质量稳定。
此外，还要说明的是，在实际应用时，还可通过上述多个测量值联合指示卫星小区的信号质量波动，如，将测量值1和测量值2进行联合指示，将测量值1中的信号质量参数最差的卫星小区，以及测量值2中质量参数的方差最大的卫星小区确定为信号质量波动大的小区，或者将测量值1中信号质量参数大于某个阈值，且测量值2中质量参数的方差大于某个阈值的卫星小区确定为信号质量波动大的小区，此外还可能涉及到其他确定方式，本申请在此不一一示例。
另外，还要说明的是，在实际应用时，可将上述的测量值设置优先级顺序，基于优先级情况确定卫星小区的信号质量，假定存在3个测量值，其中，测量值3的优先级大于测量2，测量值2的优先级及大于测量值1，在实际应用时，如果不同测量值反馈的信号质量波动情况的小区不同时，可以优先级较高的测量值确定信号质量波动情况的小区为准，如将以测量值3确定的卫星小区的波动情况为准，本申请在此仅示例性描述，并不具体限定。
进一步地，根据上述测量值可以确定不同卫星系列中卫星小区的信号质量波动情况，网络设备基于该测量值可指示终端切换到信号质量更稳定的卫星系列的卫星小区接收服务，终端也可根据不同卫星系列中卫星小区的信号质量波动情况选择信号质量更稳定的卫星系列的卫星小区接收服务。当然在实际应用时，具体选择信号质量更稳定的卫星系列的哪个卫星小区在此不具体限定，例如，可基于卫星小区可为终端提供服务的时间段以及当前的时间段来确定，本申请在此不具体限定。
此外，若终端处于RRC连接态时，终端上报测量值至网络设备，以便网络设备决定是否执行小区切换操作，或，若终端处于RRC非连接态时，终端确定是否启动卫星小区的信号测量或者确定是否执行卫星小区的重选。
本申请中，终端在进行小区信号测量时，利用轨道或者轨迹中卫星覆盖的相关性，基于测量配置信息中系列卫星测量时间范围进行的，对测量对象和起止时间范围有明确的约束，通过该方式可以减少不必要的切换和重选，进而减少信令的交互，提高数据处理效率。且通过上述的测量值指示测量时间范围内至少一个卫星的小区信号质量波动，可以避免终端长期只在距离终端较近的卫星(实际该卫星可能存在信号遮挡等也即图6中的情况)接 收通信服务，可以保证通信质量。
接下来分情况来介绍其他可能涉及到的测量配置信息。
情况1、终端处于RRC连接态
可选的，测量配置信息还包括报告配置，报告配置可包括：报告内容配置信息，用于指示测量报告中包括的测量值的类型(也即测量报告中上报哪个测量值)；触发事件，用于指示上报测量报告的触发条件。
可选的，触发事件可包括以下至少一项：
第一触发事件，用于指示当终端所在卫星系列中的卫星小区的信号质量波动高于第一波动阈值时，上报测量报告。
第二触发事件，用于指示当终端所在卫星系列中的卫星小区的信号质量波动低于第二波动阈值时，上报测量报告。
第三触发事件，用于指示当终端所在卫星系列以外的卫星系列中的卫星小区的信号质量波动高于第三波动阈值时，上报测量报告。
第四触发事件，用于指示当终端所在卫星系列以外的卫星系列中的卫星小区的信号质量波动高于第一卫星系列中的卫星小区的信号质量波动时，上报测量报告。
其中，终端所在卫星系列为所述终端的服务卫星小区所属的卫星系列。上述小区的信号质量波动越高，小区信号越不稳定。
此外，还要说明的是，上述第一波动阈值、第二波动阈值以及第三波动阈值可以设置为相同的阈值，也可设置为不同的阈值，本申请在此不具体限定。
如下述表6所示，表6中仅以4种触发事件为例来说明，但是在实际应用时，可能还包括其他触发事件，在此不展开说明。
表6
Figure PCTCN2022103146-appb-000010
Figure PCTCN2022103146-appb-000011
其中，Ls：表示当前终端所在系列卫星小区的质量方差和平均质量的比值；Ln：表示其他系列卫星小区的质量方差和平均质量的比值；Thresh：第一波动阈值；Offset：偏移量，用于避免乒乓效应，该偏移量是可选的。
以触发事件L3为例，如果UE发现另一系列卫星的波动情况优于当前所在系列卫星的波动情况(也即另一系列卫星的信号更加稳定)，则触发上报。之后基站可指示UE切换到另一系列的卫星小区中。
类似现有技术多种触发量设计，可设计多种触发事件，例如可以只对“最差质量”进行触发(类似RSRP触发)，也可以对“最差质量”和“质量方差”同时进行触发(类似RSRP和RSRQ同时触发)，也可以基于某个指标进行触发，例如“最差质量”，但是测量报告同时包含多个测量结果，例如“最差质量”和“质量方差”(类似RSRP触发RSRQ过滤)。也可以把RSRP、RSRQ等变量和波动情况指标进行组合触发，具体组合不作限制。
情况2、终端处于RRC非连接态
可选的，测量配置信息还包括：相邻的卫星小区测量条件；测量条件包括以下中的至少一种：
终端所在卫星系列以外的卫星系列的卫星小区的优先级高于终端所在卫星系列中的卫星小区；其中，终端所在卫星系列为终端的服务卫星小区所属的卫星系列。
例如，当前服务终端的卫星系列为卫星系列1，卫星系列1相邻的卫星系列包括卫星系列2和卫星系列3，其中，卫星系列3的优先级高于卫星系列1，卫星系列2的优先级低于卫星系列1，则触发对卫星系列3的卫星小区的信号测量。此外，若卫星系列2和卫星系列3的优先级均高于卫星系列1，可以对卫星系列2和卫星系列3的优先级进行排序，选择优先级最高的卫星系列的卫星小区进行信号测量。
终端所在卫星系列以外的卫星系列的卫星小区的优先级不高于终端所在卫星系列中的卫星小区，且终端所在卫星系列中的卫星小区的信号质量波动高于第四波动阈值。
例如，当前服务终端的卫星系列为卫星系列1，卫星系列1相邻的卫星系列包括卫星系列3，其中，卫星系列3的优先级不高于卫星系列1，但是卫星系列1的卫星小区的信号质量波动高于第四波动阈值，也即当前卫星系列1的卫星小区的信号稳定性较差，因此会对卫星系列3中卫星小区进行信号测量。
可选的，测量配置信息还包括：卫星小区的重选条件；重选条件包括以下中的至少一种：
在预设时间阈值内，终端所在卫星系列以外的卫星系列的卫星小区的信号质量不高于第四波动阈值；在预设时间阈值内，终端所在卫星系列以外的卫星系列的卫星小区的信号质量不高于终端所在卫星系列的卫星小区的信号质量。也即在预设时间阈值内，当前服务终端的卫星小区的相邻小区的信号比当前服务终端的卫星小区的信号稳定，因此该相邻小区可以作为新的服务终端的卫星小区。
此外，还要说明的是，预设时间阈值可基于用户的需求进行设置，如，设置为1天， 或者1周，或者10个小时等，本申请不对预设时间阈值的具体时间范围进行限定。
基站为UE配置(或者和UE约定)和不同卫星系列间的大时间颗粒度波动情况相关的重选条件，将所在卫星系列的覆盖在长周期波动程度低纳入重选考虑指标，将UE优先驻留到长周期波动较小的卫星系列中。例如，两个不同轨道中的目标卫星的近期信号质量相近(差异小于阈值)，但是其中一个轨道的目标卫星信号稳定性较高，UE应驻留到长周期信号质量更高的轨道中卫星小区。
此外，也可以对现有的指标的测量行为添加长时间测量的约束，例如，对于现有技术中同等优先级小区重选依据R准则进行，R准则根据小区信号质量，给每一个邻小区和当前服务小区的测量结果算出一个R(Rank)值，然后根据R值大小排序，R值大于当前服务小区的，满足重选标准，有多个满足的话，就选最好的。如果持续超过TreselectionRAT，一直满足R准则。UE启动向该小区的重选操作。R值的计算方式如下
R s＝Q meas,s+Q hyst-Qoffset temp
R n＝Q meas,n–Qoffset-Qoffset temp
其中，Q meas,s为R准则计算参数，用于指示当前服务的卫星的小区的信号质量，可通过***消息NA获取。Q meas，n为R准则计算参数，用于指示当前服务的卫星的小区的邻小区的信号质量，可通过***消息NA获取。Q Hyst为R准则计算参数，用于指示当前服务的卫星的小区的重选迟滞值，可通过***消息SIB2获取。Qoffset为R准则计算参数，在同频重选的场景下，这个值取Qoffsetcell，且从SIB3中取；异频重选的情况下，该值等于QoffsetCell+QoffsetFreq，两个值均从SIB4中取。Qoffsettemp为R准则计算参数，可通过***消息SIB1获取。其中Q meas,s、Q meas，n为测量值。
此外，可选的，可将第一卫星系列中的卫星的卫星小区构成超小区，第二卫星系列中的卫星的卫星小区构成超小区在该超小区内的卫星的小区重选、切换均无需在网络设备和终端进行信令的交互，通过该方式可以较少信令开销，提高数据处理效率。只有在不同系列标识下卫星的卫星小区切换才触发网络设备和终端之间的信令交互。
上述主要从设备交互的角度对本申请实施例提供的方案进行了介绍。可以理解的是，为了实现上述功能，各个设备可以包括执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，本申请的实施例能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
本申请实施例可以根据上述方法示例对设备进行功能单元的划分，例如，可以对应各个功能划分各个功能单元，也可以将两个或两个以上的功能集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
在采用集成的单元的情况下，图10示出了本申请实施例中所涉及的通信装置的可能的示例性框图。如图10所示，通信装置1000可以包括：处理单元1001和收发单元1002。处理单元1001用于对通信装置1000的动作进行控制管理。收发单元1002用于支持通信装置1000与其他设备的通信。可选地，收发单元1002可以包括接收单元和/或发送单元，分别用于执行接收和发送操作。可选的，通信装置1000还可以包括存储单元，用于存储通信装置1000的程序代码和/或数据。所述收发单元可以称为输入输出单元、通信单元等， 所述收发单元可以是收发器；所述处理单元可以是处理器。当通信装置是通信设备中的模块(如，芯片)时，所述收发单元可以是输入输出接口、输入输出电路或输入输出管脚等，也可以称为接口、通信接口或接口电路等；所述处理单元可以是处理器、处理电路或逻辑电路等。具体地，该装置可以为上述的终端、网络设备以及卫星等。
在一个实施例中，收发单元1002，用于获取测量配置信息，测量配置信息包括至少一个卫星小区的信息以及测量时间范围，至少一个卫星小区中包括第一卫星小区，第一卫星小区的测量时间范围为第一卫星小区的覆盖范围位于第一区域的时间长度的全部或部分，第一区域为终端所在的区域；处理单元1001，用于根据测量配置信息，对第一区域内至少一个卫星小区的信号进行测量，得到测量值，测量值用于指示测量时间范围内至少一个卫星小区的信号质量波动。
可选的，在一种可选的实施方式中，至少一个卫星小区对应的卫星，包括第一卫星系列和第二卫星系列中的卫星，同一卫星系列中的卫星的轨道相同或在地面投影轨迹相同。
可选的，同一卫星系列中不同卫星的卫星小区的测量起止时间不同。
可选的，测量配置信息还包括：卫星小区的标识、至少一个卫星小区的测量频点。
可选的，终端在第一卫星小区的测量时间范围内测量到N个信号质量参数，第一卫星小区的测量值，包括以下至少一项：
N个信号质量参数中信号最差的信号质量参数；
N个信号质量参数的方差；
N个信号质量参数的方差与信号质量参数的平均值的比值；
N个信号质量参数中高于第一质量参数阈值的信号质量参数对应时间段的第一时间长度以及起止时间；
N个信号质量参数中低于第二质量参数阈值的信号质量参数对应时间段的第二时间长度以及起止时间；
第一时间长度与第一卫星小区的测量时间范围的比值；
第二时间长度与第一卫星小区的测量时间范围的比值。
可选的，信号质量参数为以下中的一种：RSRP、RSSI、RSRQ以及SINR。
可选的，测量配置信息还包括报告配置，报告配置包括：报告内容配置信息，用于指示测量报告中包括的测量值的类型；触发事件，用于指示上报测量报告的触发条件。
可选的，触发事件包括以下至少一项：
第一触发事件，用于指示当终端所在卫星系列中的卫星小区信号质量波动高于第一波动阈值时，上报测量报告；
第二触发事件，用于指示当终端所在卫星系列中的卫星小区信号质量波动低于第二波动阈值时，上报测量报告；
第三触发事件，用于指示当终端所在卫星系列以外的卫星系列中的卫星小区信号质量波动高于第三波动阈值时，上报测量报告；
第四触发事件，用于指示当终端所在卫星系列以外的卫星系列中的卫星小区信号质量波动高于第一卫星系列中的卫星小区的信号质量波动时，上报测量报告；
其中，终端所在卫星系列为终端的服务卫星小区所属的卫星系列。
可选的，测量配置信息还包括：相邻的卫星小区测量条件；相邻的卫星小区测量条件包括以下中的至少一种：
终端所在卫星系列以外的卫星系列的卫星小区的优先级高于终端所在卫星系列中的卫星小区；
终端所在卫星系列以外的卫星系列的卫星小区的优先级不高于终端所在卫星系列中的卫星小区，且终端所在卫星系列中的卫星小区的信号质量波动高于第四波动阈值；
其中，终端所在卫星系列为终端的服务卫星小区所属的卫星系列。
可选的，测量配置信息还包括：卫星小区的重选条件，重选条件包括以下中的至少一种：
在预设时间阈值内，终端所在卫星系列以外的卫星系列的卫星小区的信号质量不高于第四波动阈值；
在预设时间阈值内，终端所在卫星系列以外的卫星系列的卫星小区的信号质量不高于终端所在卫星系列的卫星小区的信号质量。
可选的，测量配置信息还包括：第一卫星系列的系列标识以及第二卫星系列的系列标识。
可选的，第一卫星系列中的卫星的卫星小区构成超小区；第二卫星系列中的卫星的卫星小区构成超小区。
可选的，收发单元1002，还用于接收来自网络设备的测量配置信息。
可选的，若终端处于无线资源控制RRC连接态时，收发单元1002，还用于上报测量值；或，若终端处于RRC非连接态时，处理单元1001，还用于根据测量值确定卫星小区的信号质量波动情况。
可选的，若终端处于RRC连接态时，终端上报测量值；或，若终端处于RRC非连接态时，终端确定是否启动卫星小区的信号测量或者确定是否执行卫星小区的重选。
在另一个实施例中，处理单元1001，用于确定测量配置信息，测量配置信息包括至少一个卫星小区的信息以及测量时间范围，至少一个卫星小区中包括第一卫星小区，第一卫星小区的测量时间范围为第一卫星小区的覆盖范围位于第一区域的时间长度的全部或部分，第一区域为终端所在的区域；收发单元1002，用于发送测量配置信息。
可选的，至少一个卫星小区对应的卫星，包括第一卫星系列和第二卫星系列中的卫星，同一卫星系列中的卫星的轨道相同或在地面投影轨迹相同。
可选的，同一卫星系列中不同卫星的卫星小区的测量起止时间不同。
可选的，测量配置信息还包括报告配置，报告配置包括：
报告内容配置信息，用于指示测量报告中包括的测量值的类型；
触发事件，用于指示上报测量报告的触发条件。
可选的，触发事件包括以下至少一项：
第一触发事件，用于指示当终端所在卫星系列中的卫星小区信号质量波动高于第一波动阈值时，上报测量报告；
第二触发事件，用于指示当终端所在卫星系列中的卫星小区信号质量波动低于第二波动阈值时，上报测量报告；
第三触发事件，用于指示当终端所在卫星系列以外的卫星系列中的卫星小区信号质量波动高于第三波动阈值时，上报测量报告；
第四触发事件，用于指示当终端所在卫星系列以外的卫星系列中的卫星小区信号质量波动高于终端所在卫星系列中的卫星小区的信号质量波动时，上报测量报告；
其中，终端所在卫星系列为终端的服务卫星小区所属的卫星系列。
可选的，收发单元1002，还用于接收终端根据测量配置信息上报的测量报告，测量报告中包括终端根据测量配置信息，对第一区域内至少一个卫星的小区信号进行测量得到的测量值；处理单元1001，还用于根据测量报告对终端进行卫星小区切换判决。
可选的，终端在第一卫星小区的测量时间范围内测量到N个信号质量参数，第一卫星小区的测量值，包括以下至少一项：
N个信号质量参数中信号最差的信号质量参数；
N个信号质量参数的方差；
N个信号质量参数的方差与信号质量参数的平均值的比值；
N个信号质量参数中高于第一质量参数阈值的信号质量参数对应时间段的第一时间长度以及起止时间；
N个信号质量参数中低于第二质量参数阈值的信号质量参数对应时间段的第二时间长度以及起止时间；
第一时间长度与第一卫星小区的测量时间范围的比值
第二时间长度与第一卫星小区的测量时间范围的比值。
可选的，信号质量参数为以下中的一种：RSRP、RSSI、RSRQ以及SINR。
可选的，测量配置信息还包括：相邻的卫星小区测量条件；
相邻的卫星小区测量条件包括以下中的至少一种：
终端所在卫星系列以外的卫星系列的卫星小区的优先级高于终端所在卫星系列中的卫星小区；
终端所在卫星系列以外的卫星系列的卫星小区的优先级不高于终端所在卫星系列中的卫星小区，且终端所在卫星系列中的卫星小区的信号质量波动高于第四波动阈值；
其中，终端所在卫星系列为终端的服务卫星小区所属的卫星系列。
可选的，测量配置信息还包括：卫星小区的重选条件，重选条件包括以下中的至少一种：
在预设时间阈值内，终端所在卫星系列以外的卫星系列的卫星小区的信号质量不高于第四波动阈值；
在预设时间阈值内，终端所在卫星系列以外的卫星系列的卫星小区的信号质量不高于终端所在卫星系列的卫星小区的信号质量。
可选的，测量配置信息还包括：第一卫星系列的系列标识以及第二卫星系列的系列标识。
如图11所示，为本申请还提供的一种通信装置1100。通信装置1100可以是芯片或芯片***。该通信装置可以位于上述任一方法实施例所涉及的设备中，例如卫星、网络设备、终端等，以执行该设备所对应的动作。
可选的，芯片***可以由芯片构成，也可以包含芯片和其他分立器件。
通信装置1100包括处理器1110。
处理器1110，用于执行存储器1120中存储的计算机程序，以实现上述任一方法实施例中各个设备的动作。
通信装置1100还可以包括存储器1120，用于存储计算机程序。
可选地，存储器1120和处理器1110之间耦合。耦合是装置、单元或模块之间的间接 耦合或通信连接，可以是电性，机械或其它的形式，用于装置、单元或模块之间的信息交互。可选的，存储器1120与处理器1110集成在一起。
其中，处理器1110和存储器1120均可以为一个或多个，不予限制。
可选的，在实际应用中，通信装置1100中可以包括收发器1130，也可不包括收发器1130，图中以虚线框来示意，通信装置1100可以通过收发器1130和其它设备进行信息交互。收发器1130可以是电路、总线、收发器或者其它任意可以用于进行信息交互的装置。
在一种可能的实施方式中，该通信装置1100可以为上述各方法实施中的第一卫星、地面设备。
本申请实施例中不限定上述收发器1130、处理器1110以及存储器1120之间的具体连接介质。本申请实施例在图11中以存储器1120、处理器1110以及收发器1130之间通过总线连接，总线在图11中以粗线表示，其它部件之间的连接方式，仅是进行示意性说明，并不引以为限。所述总线可以分为地址总线、数据总线、控制总线等。为便于表示，图11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。在本申请实施例中，处理器可以是通用处理器、数字信号处理器、专用集成电路、现场可编程门阵列或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件，可以实施或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。
在本申请实施例中，存储器可以是非易失性存储器，比如硬盘(hard disk drive，HDD)或固态硬盘(solid-state drive，SSD)等，还可以是易失性存储器(volatile memory)，例如随机存取存储器(random-access memory，RAM)。存储器还可以是能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质，但不限于此。本申请实施例中的存储器还可以是电路或者其它任意能够实施存储功能的装置，用于存储计算机程序、程序指令和/或数据。
基于以上实施例，参见图12，本申请实施例还提供另一种通信装置1200，包括：接口电路1210和逻辑电路1220；接口电路1210，可以理解为输入输出接口，可用于执行上述任一方法实施例中各个设备的收发步骤；逻辑电路1220可用于运行代码或指令以执行上述任一实施例中各个设备执行的方法，不再赘述。
基于以上实施例，本申请实施例还提供一种计算机可读存储介质，该计算机可读存储介质存储有指令，当所述指令被执行时，使上述任一方法实施例中各个设备执行的方法被实施。该计算机可读存储介质可以包括：U盘、移动硬盘、只读存储器、随机存取存储器、磁碟或者光盘等各种可以存储程序代码的介质。
基于以上实施例，本申请实施例提供一种通信***，该通信***包括上述任一方法实施例中提及的卫星、终端以及网络设备，可用于执行上述任一方法实施例中各个设备执行的方法。
本领域内的技术人员应明白，本申请的实施例可提供为方法、***、或计算机程序产品。因此，本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、紧凑型光盘只读储存器(compact disc read-only memory，CD-ROM)、光学存储器等)上实施的计算机程序产品的形式。
本申请是参照根据本申请的方法、装置(***)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理装置的处理器以产生一个机器，使得通过计算机或其他可编程数据处理装置的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理装置以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理装置上，使得在计算机或其他可编程装置上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程装置上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。

Claims (28)

  1. 一种信号测量方法，其特征在于，包括：
    终端获取测量配置信息，所述测量配置信息包括至少一个卫星小区的信息以及测量时间范围，所述至少一个卫星小区中包括第一卫星小区，所述第一卫星小区的测量时间范围为所述第一卫星小区的覆盖范围位于第一区域的时间长度的全部或部分，所述第一区域为所述终端所在的区域；
    所述终端根据所述测量配置信息，对所述第一区域内所述至少一个卫星小区的信号进行测量，得到测量值，所述测量值用于指示所述测量时间范围内所述至少一个卫星小区的信号质量波动。
  2. 根据权利要求1所述的方法，其特征在于，所述至少一个卫星小区对应的卫星，包括第一卫星系列和第二卫星系列中的卫星，同一卫星系列中的卫星的轨道相同或在地面投影轨迹相同。
  3. 根据权利要求2所述的方法，其特征在于，同一卫星系列中不同卫星的卫星小区的测量起止时间不同。
  4. 根据权利要求1或2所述的方法，其特征在于，所述终端在所述第一卫星小区的测量时间范围内测量到N个信号质量参数，所述第一卫星小区的测量值，包括以下至少一项：
    所述N个信号质量参数中信号最差的信号质量参数；
    所述N个信号质量参数的方差；
    所述N个信号质量参数的方差与信号质量参数的平均值的比值；
    所述N个信号质量参数中高于第一质量参数阈值的信号质量参数对应时间段的第一时间长度以及起止时间；
    所述N个信号质量参数中低于第二质量参数阈值的信号质量参数对应时间段的第二时间长度以及起止时间；
    所述第一时间长度与所述第一卫星小区的测量时间范围的比值；
    所述第二时间长度与所述第一卫星小区的测量时间范围的比值。
  5. 根据权利要求4所述的方法，其特征在于，所述信号质量参数为以下中的一种：参考信号接收功率RSRP、接收信号强度指示RSSI、参考信号接收质量RSRQ以及信号干扰噪声比SINR。
  6. 根据权利要求1-5中任一项所述方法，其特征在于，所述测量配置信息还包括报告配置，所述报告配置包括：
    报告内容配置信息，用于指示测量报告中包括的测量值的类型；
    触发事件，用于指示上报测量报告的触发条件。
  7. 根据权利要求6所述的方法，其特征在于，所述触发事件包括以下至少一项：
    第一触发事件，用于指示当所述终端所在卫星系列中的卫星小区信号质量波动高于第一波动阈值时，上报测量报告；
    第二触发事件，用于指示当所述终端所在卫星系列中的卫星小区信号质量波动低于第二波动阈值时，上报测量报告；
    第三触发事件，用于指示当所述终端所在卫星系列以外的卫星系列中的卫星小区信号质量波动高于第三波动阈值时，上报测量报告；
    第四触发事件，用于指示当所述终端所在卫星系列以外的卫星系列中的卫星小区信号质量波动高于所述第一卫星系列中的卫星小区的信号质量波动时，上报测量报告；
    其中，所述终端所在卫星系列为所述终端的服务卫星小区所属的卫星系列。
  8. 根据权利要求1-5中任一项所述的方法，其特征在于，所述测量配置信息还包括：相邻的卫星小区测量条件；所述相邻的卫星小区测量条件包括以下中的至少一种：
    所述终端所在卫星系列以外的卫星系列的卫星小区的优先级高于所述终端所在卫星系列中的卫星小区；
    所述终端所在卫星系列以外的卫星系列的卫星小区的优先级不高于所述终端所在卫星系列中的卫星小区，且所述终端所在卫星系列中的卫星小区的信号质量波动高于第四波动阈值；
    其中，所述终端所在卫星系列为所述终端的服务卫星小区所属的卫星系列。
  9. 根据权利要求8所述的方法，其特征在于，所述测量配置信息还包括：卫星小区的重选条件，所述重选条件包括以下中的至少一种：
    在预设时间阈值内，所述终端所在卫星系列以外的卫星系列的卫星小区的信号质量不高于所述第四波动阈值；
    在所述预设时间阈值内，所述终端所在卫星系列以外的卫星系列的卫星小区的信号质量不高于所述终端所在卫星系列的卫星小区的信号质量。
  10. 根据权利要求2-9中任一项所述的方法，其特征在于，所述测量配置信息还包括：
    所述第一卫星系列的系列标识以及所述第二卫星系列的系列标识。
  11. 根据权利要求10所述的方法，其特征在于，所述第一卫星系列中的卫星的卫星小区构成超小区；所述第二卫星系列中的卫星的卫星小区构成超小区。
  12. 根据权利要求1-11中任一项所述的方法，其特征在于，所述终端获取测量配置信息，包括：
    所述终端接收来自网络设备的所述测量配置信息。
  13. 根据权利要求1-12中任一项所述的方法，其特征在于，还包括：
    若所述终端处于无线资源控制RRC连接态时，所述终端上报所述测量值；或，
    若所述终端处于RRC非连接态时，所述终端确定是否启动所述卫星小区的信号测量或者确定是否执行卫星小区的重选。
  14. 一种信号测量方法，其特征在于，包括：
    网络设备确定测量配置信息，所述测量配置信息包括至少一个卫星小区的信息以及测量时间范围，所述至少一个卫星小区中包括第一卫星小区，所述第一卫星小区的测量时间范围为所述第一卫星小区的覆盖范围位于第一区域的时间长度的全部或部分，所述第一区域为所述终端所在的区域；
    所述网络设备发送所述测量配置信息。
  15. 根据权利要求14所述的方法，其特征在于，所述至少一个卫星小区对应的卫星，包括第一卫星系列和第二卫星系列中的卫星，同一卫星系列中的卫星的轨道相同或在地面投影轨迹相同。
  16. 根据权利要求15所述的方法，其特征在于，同一卫星系列中不同卫星的卫星小区的测量起止时间不同。
  17. 根据权利要求14-16中任一项所述的方法，其特征在于，所述测量配置信息还包括 报告配置，所述报告配置包括：
    报告内容配置信息，用于指示测量报告中包括的测量值的类型；
    触发事件，用于指示上报测量报告的触发条件。
  18. 根据权利要求17所述的方法，其特征在于，所述触发事件包括以下至少一项：
    第一触发事件，用于指示当所述终端所在卫星系列中的卫星小区信号质量波动高于第一波动阈值时，上报测量报告；
    第二触发事件，用于指示当所述终端所在卫星系列中的卫星小区信号质量波动低于第二波动阈值时，上报测量报告；
    第三触发事件，用于指示当所述终端所在卫星系列以外的卫星系列中的卫星小区信号质量波动高于第三波动阈值时，上报测量报告；
    第四触发事件，用于指示当所述终端所在卫星系列以外的卫星系列中的卫星小区信号质量波动高于所述终端所在卫星系列中的卫星小区的信号质量波动时，上报测量报告；
    其中，所述终端所在卫星系列为所述终端的服务卫星小区所属的卫星系列。
  19. 根据权利要求18所述的方法，其特征在于，所述方法还包括：
    所述网络设备接收所述终端根据所述测量配置信息上报的测量报告，所述测量报告中包括所述终端根据所述测量配置信息，对所述第一区域内所述至少一个卫星的小区信号进行测量得到的测量值；
    所述网络设备根据所述测量报告对所述终端进行卫星小区切换判决。
  20. 根据权利要求19所述的方法，其特征在于，所述终端在所述第一卫星小区的测量时间范围内测量到N个信号质量参数，所述第一卫星小区的测量值，包括以下至少一项：
    所述N个信号质量参数中信号最差的信号质量参数；
    所述N个信号质量参数的方差；
    所述N个信号质量参数的方差与信号质量参数的平均值的比值；
    所述N个信号质量参数中高于第一质量参数阈值的信号质量参数对应时间段的第一时间长度以及起止时间；
    所述N个信号质量参数中低于第二质量参数阈值的信号质量参数对应时间段的第二时间长度以及起止时间；
    所述第一时间长度与所述第一卫星小区的测量时间范围的比值
    所述第二时间长度与所述第一卫星小区的测量时间范围的比值。
  21. 根据权利要求20所述的方法，其特征在于，所述信号质量参数为以下中的一种：参考信号接收功率RSRP、接收信号强度指示RSSI、参考信号接收质量RSRQ以及信号干扰噪声比SINR。
  22. 根据权利要求14-16中任一项所述的方法，其特征在于，所述测量配置信息还包括：相邻的卫星小区测量条件；
    所述相邻的卫星小区测量条件包括以下中的至少一种：
    所述终端所在卫星系列以外的卫星系列的卫星小区的优先级高于所述终端所在卫星系列中的卫星小区；
    所述终端所在卫星系列以外的卫星系列的卫星小区的优先级不高于所述终端所在卫星系列中的卫星小区，且所述终端所在卫星系列中的卫星小区的信号质量波动高于第四波动阈值；
    其中，所述终端所在卫星系列为所述终端的服务卫星小区所属的卫星系列。
  23. 根据权利要求22所述的方法，其特征在于，所述测量配置信息还包括：卫星小区的重选条件，所述重选条件包括以下中的至少一种：
    在预设时间阈值内，所述终端所在卫星系列以外的卫星系列的卫星小区的信号质量不高于所述第四波动阈值；
    在所述预设时间阈值内，所述终端所在卫星系列以外的卫星系列的卫星小区的信号质量不高于所述终端所在卫星系列的卫星小区的信号质量。
  24. 根据权利要求15-22中任一项所述的方法，其特征在于，所述测量配置信息还包括：
    所述第一卫星系列的系列标识以及所述第二卫星系列的系列标识。
  25. 一种通信装置，其特征在于，包括：实现如权利要求1-13任一项、或14-24任一项所述的方法的功能模块。
  26. 一种通信装置，其特征在于，包括：至少一个处理器，所述处理器与存储器耦合；
    所述至少一个处理器，用于执行所述存储器存储的计算机程序或指令，以使得如权利要求1-13中任一项或权利要求14-24中任一项所述的方法被执行。
  27. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质存储有指令，当所述指令被计算机执行时，使得如权利要求1-13任一项或14-24任一项所述的方法被执行。
  28. 一种包含计算机程序或指令的计算机程序产品，其特征在于，当其在计算机上运行时，使得上述权利要求1-13任一项或14-24任一项所述的方法被执行。
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