Cell measurement method, apparatus, device and medium

Abstract

The present disclosure discloses a cell measurement method, an apparatus, a device and a medium, which relate to the field of communications. The method includes a step of receiving configuration information for indicating a dynamic adjustment rule of a time parameter when the terminal performs cell measurement, and a step of determining a measurement window based on the dynamic adjustment rule. By setting the dynamic adjustment rule of the time parameter of the measurement window according to the configuration information, the UE can obtain the time parameter information of the subsequent SMTC / measurement gap, such as the offset / duration value, based on the configuration information, and can effectively reduce the update frequency of the SMTC / measurement gap.

Description

Technical Field

[0001] The present disclosure relates to the field of communications, and in particular, to a cell measurement method, apparatus, device, and medium.

Background Art

[0002] In 5G NR, non-terrestrial networks (NTN), that is, 5G satellite communication networks, have been introduced. Considering the high altitude of satellites from the earth, the transmission delay of the NTN network is large.

[0003] In the NTN system, since the cell radius is large, the overlap range of the coverage areas of different satellites is also large. When satellite 1 provides services to user equipment (UE), the UE may be located within the coverage of satellite 2 / satellite 3. Considering the mobility of the UE, the UE needs to measure adjacent cells covered by satellite 2 / satellite 3 and needs to consider the influence of the transmission delay difference.

Summary of the Invention

Problems to be Solved by the Invention

[0004] Embodiments of the present disclosure provide a cell measurement method, apparatus, device, and medium. Such technical solutions are as follows.

Means for Solving the Problems

[0005] One aspect of the present disclosure is a cell measurement method executed by a terminal, including: receiving configuration information for instructing a dynamic adjustment rule of a time parameter when the terminal performs cell measurement; and determining a measurement window based on the dynamic adjustment rule.

[0006] Another aspect provides a cell measurement method executed by a network device, including the step of transmitting, to a terminal, setting information for instructing a dynamic adjustment rule of time parameters when the terminal performs cell measurement, based on the position information of the terminal and the ephemeris information of a satellite.

[0007] Another aspect provides a cell measurement apparatus, including a receiving module that receives setting information for instructing a dynamic adjustment rule of time parameters when a terminal performs cell measurement, and a processing module that determines a measurement window based on the dynamic adjustment rule.

[0008] Another aspect provides a cell measurement apparatus, including a transmitting module that transmits, to a terminal, setting information for instructing a dynamic adjustment rule of time parameters when the terminal performs cell measurement, based on the position information of the terminal and the ephemeris information of a satellite.

[0009] Another aspect provides a terminal, including a processor, a transceiver connected to the processor, and a memory for storing executable instructions of the processor, wherein the processor is configured to load and execute the executable instructions to implement the cell measurement method described in any of the above embodiments.

[0010] Another aspect provides a network device, including a processor, a transceiver connected to the processor, and a memory for storing executable instructions of the processor, wherein the processor is configured to load and execute the executable instructions to implement the cell measurement method described in any of the above embodiments.

[0011] Another aspect provides a computer-readable storage medium storing executable instructions, wherein the executable instructions are loaded and executed by a processor to implement the cell measurement method described in any of the above embodiments.

Advantages of the Invention

[0012] The technical solutions provided by the embodiments of the present disclosure include at least the following beneficial effects. By setting the dynamic adjustment rule of the time parameter of the measurement window according to the configuration information, the UE can obtain the time parameter information of subsequent SMTC / measurement Gap, such as the value of offset / duration length, based on the configuration information, and can effectively reduce the update frequency of SMTC / measurement Gap.

Brief Description of the Drawings

[0013] To more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for the description of the embodiments are briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present disclosure. Those skilled in the art can also obtain other drawings based on these drawings without creative efforts.

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Embodiments for Carrying Out the Invention

[0014] To make the objectives, technical solutions, and advantages of the present disclosure clearer, the embodiments of the present disclosure will be described in more detail below in conjunction with the drawings.

[0015] Currently, the Third Generation Partnership Project (3GPP (registered trademark)) is researching NTN technology, which generally uses satellite communication to provide communication services to terrestrial users. Compared with terrestrial cellular network communication, satellite communication has many unique advantages. First, satellite communication is not restricted by the user's location. For example, general terrestrial communication cannot cover areas where communication facilities cannot be installed, such as the sea, mountains, deserts, or areas with few people and no communication coverage. In contrast, in the case of satellite communication, one satellite can cover a large area on the ground, and since the satellite can orbit around the Earth, theoretically, satellite communication can cover every corner of the Earth. Second, satellite communication has great social value. Since satellite communication can cover mountainous and remote areas, poor developing countries or regions at low cost, people in these regions can enjoy advanced voice communication and mobile Internet technology, narrowing the information gap with developed regions and promoting the development of these regions. Third, the satellite communication distance is long, and even when the communication distance increases, the communication cost does not increase significantly. Finally, satellite communication has high stability and is not affected by natural disasters.

[0016] Communication satellites can be divided into Low-Earth Orbit (LEO) satellites, Medium-Earth Orbit (MEO) satellites, Geostationary Earth Orbit (GEO) satellites, High Elliptical Orbit (HEO) satellites, etc. according to the difference in orbital altitude. At the current stage, the main research focuses on LEO and GEO.

[0017] LEO Low-orbit satellites have an altitude range of 500 km to 1500 km, and the corresponding orbital period is about 1.5 hours to 2 hours. The signal propagation delay of single-hop communication between users is usually less than 20 ms. The longest visible time of the satellite is 20 minutes. The signal propagation distance is short, the link loss is small, and the requirement for the transmission power of the user terminal is not high.

[0018] GEO Geostationary satellites have an orbital altitude of 35,786 km and a period of orbiting around the Earth of 24 hours. The signal propagation delay for single-hop communication between users is usually 250 ms.

[0019] To ensure satellite coverage and improve the system capacity of the entire satellite communication system, satellites use multiple beams to cover the ground. One satellite can form dozens, and in some cases, hundreds of beams to cover the ground. One satellite beam can cover a ground area with a diameter ranging from dozens to hundreds of kilometers.

[0020] There are at least two NTN scenarios: the transparent transmission load NTN and the regeneration load NTN. Figure 1 shows a scenario of the transparent transmission load NTN including UE12, satellite 14, gateway device 16, and data network 18. A feeder link is included between satellite 14 and gateway device 16.

[0021] Figure 2 shows a scenario of the regeneration load NTN including UE12, satellite 14, gateway device 16, and data network 18. A feeder link is included between satellite 14 and gateway device 16, and an inter-satellite link is included between satellite 14 and satellite 14.

[0022] The NTN network is composed of the following network elements. · One or more gateways: Used to connect satellites to terrestrial public networks. · Feeder link: A link used for communication between a gateway and a satellite. · Service link: A link used for communication between a terminal and a satellite. · Satellites: Divided into two types, transparent transmission load and regeneration load, based on the functions they provide. · Throughput load: It only provides the functions of radio frequency filtering, frequency conversion, and amplification, only provides signal transmission, and does not change the waveform signal it transmits. · Repeater load: In addition to the functions of radio frequency filtering, frequency conversion, and amplification, it can also provide the functions of demodulation / decoding, routing / conversion, and encoding / modulation. It has some or all of the functions of a base station. · Inter-Satellite Links (ISL): It exists in the scenario of repeater load.

[0023] In the TN system, the cell radius is small, the transmission delay difference between the UE and different cells is very small, and it is much smaller than the length of the Synchronization Signal Block Measurement Timing Configuration (SMTC) / Measurement Gap. However, in the NTN system, since the cell radius is large, the overlap range of the coverage areas of different satellites is also large. When satellite 1 is providing services to the UE, the UE may also be within the coverage range of satellite 2 / satellite 3. Considering the mobility of the UE, the UE needs to measure the adjacent cells covered by satellite 2 / satellite 3 and needs to consider the influence of the transmission delay difference. As shown in Figure 3, satellite (SA1) is the satellite of the serving cell, and satellite (SA2) is the satellite of the adjacent cell. The transmission delay for the UE to receive the signal from the serving cell can be expressed as T1g (feeder link transmission delay) + T1u (service link transmission delay), and the transmission delay for the UE to receive the signal from the adjacent cell is T2u + T2g. The transmission delay difference is T1g + T1u - (T2g + T2u).

[0024] Considering that the distances between different satellites and the UE and the ground station are different, there is a large difference in the transmission delay between the time when the UE receives the signal from the serving cell and the time when it receives the signal from the adjacent cell, that is, T1g + T1u - (T2g + T2u) does not approach 0 and may be larger than the length of the SMTC / Measurement Gap.

[0025] If the SMTC / measurement interval setting does not consider the transmission delay difference, the UE may miss the SSB / CSI-RS measurement window, and as a result, it will not be able to perform measurements on the set reference signal. Considering that the positions of different satellites are different and the propagation delay difference is large, the conventional SMTC / Gap setting method cannot be applied to the NTN network environment. When the network sets SMTC / Gap, it is necessary to consider the difference in transmission delay between different UEs and different satellites. In the SMTC setting, different SMTCs are set for each frequency, and the same SMTC setting is used to measure cells of the same frequency, but it is not applicable to the NTN network with a large transmission delay difference.

[0026] Figure 4 shows a flowchart of a cell measurement method provided by an exemplary embodiment of the present disclosure. In this embodiment, it is assumed that the method is executed by a terminal. The method includes the following steps 401 and 402.

[0027] In step 401, receive setting information for instructing a dynamic adjustment rule of time parameters when the terminal performs cell measurement.

[0028] The setting information is information for the network device to set a measurement window for the UE based on the location information of the UE and the ephemeris information of the satellite, and the setting information includes a dynamic setting rule of the time parameters of the measurement window.

[0029] The type of satellite includes at least one type of LEO satellite, MEO satellite, GEO satellite, unmanned aerial vehicle platform (UAS Platform) satellite, and HEO satellite.

[0030] The measurement window includes at least one of SMTC and the measurement Gap. The time parameter includes at least one of an offset (SMTC-offset, measurement Gap-gapoffset), a period (SMTC-periodicity, measurement Gap-mgrp), and a duration length (SMTC-duration, measurement Gap-mgl). Optionally, when the measurement window includes the measurement Gap, the time parameter further includes a measurement gap timing advance (mgta).

[0031] In some embodiments, the dynamic adjustment rule includes at least one of a time parameter change rate and a time parameter setting function.

[0032] The time parameter change rate is used to represent the law of periodic change of the time parameter, and the time parameter setting function is used to represent the functional relationship between the serial number of the time window and the time parameter.

[0033] Optionally, the configuration information can be sent to the UE via Radio Resource Control (RRC) signaling. Here, the configuration information of multiple sets of measurement windows may be included in the measurement window configuration table, and the maximum number of measurement window configurations that can be included in each measurement window configuration table may be determined by the network or based on the provisions of the protocol.

[0034] In an alternative embodiment, the network can include an SMTC configuration table in the measurement configuration. For example, the measurement configuration includes an SMTC configuration table (smtc-ntn-list), whose type is SSB-MTC-ntn-List and is defined as follows: SSB-MTC-ntn is a set of SMTC configurations, smtc-ntn-list includes multiple sets of SMTC configurations, and maxNrofSSBMTCntn is the maximum number of sets of SMTC that can be configured.

[0035] In an alternative embodiment, the network may include a measurement Gap setting table in the measurement configuration. For example, the measurement configuration may include a measurement Gap setting table (meagap-ntn-list), the type of which is MeasGap-ntn-List and is defined as follows: MeasGap-ntn is a set of measurement Gap settings, meagap-ntn-list includes multiple sets of measurement Gap settings, and maxNrofMeasGapntn is the maximum number of sets of measurable Gap that can be set.

[0036] In step 402, determine the measurement window based on the dynamic adjustment rule. In some embodiments, the measurement window is directly determined based on the dynamic adjustment rule, or the measurement window is determined based on the dynamic adjustment rule and the initial time parameter.

[0037] Describe the method of determining the measurement window based on the dynamic adjustment rule. First, the setting information includes the time parameter change rate, and the measurement window is determined based on the initial time parameter and the time parameter change rate. That is, when the network sets the change amount of the time parameter of the measurement window, the UE calculates and obtains the value of the time parameter of the current measurement window based on the change rate and the initial time parameter set by the network.

[0038] Generally, the offset is taken as an example for explanation. Assuming the initial offset is 4 ms and the change rate set by the network is 1 ms, the offset of the first measurement window is 4 ms, the offset of the second measurement window is 5 ms, and the offset of the third measurement window is 6 ms from the time when the UE receives the measurement window setting information.

[0039] The above period is merely an example. It should be noted that in some embodiments, the time parameter change rate includes the numerical values of two change rates that indicate the change rate within the alternating period. Generally speaking, the offset will be used as an example for explanation. Assuming the initial offset is 4 ms, and the change rates set by the network are 1 ms and 2 ms, starting from the time when the UE receives the measurement window setting information, the offset of the first measurement window is 4 ms, the offset of the second measurement window is 5 ms (4 ms + 1 ms), the offset of the third measurement window is 7 ms (5 ms + 2 ms), the offset of the fourth measurement window is 8 ms (7 ms + 1 ms), and so on.

[0040] It should be noted that whether the above initial time parameter is set in the setting information, or the initial time parameter is predefined, or the initial time parameter is preset in advance. In some embodiments, when the initial time parameter is included in the setting information, the initial time parameter set in the setting information is preferentially used. When the initial time parameter is not included in the setting information, the default initial time parameter is used, and the default initial time parameter is the above-mentioned preset initial time parameter or predefined initial time parameter.

[0041] Second, the setting information includes a time parameter setting function, and the measurement window is determined based on the time parameter setting function.

[0042] Here, the time parameter setting function includes any one of a linear function, a quadratic function, or other higher-order functions, or any other form of function, but is not limited thereto.

[0043] Here, the time parameter setting function is a function related to the time parameter of the measurement window and the serial number of the measurement window. The UE calculates and obtains the value of the time parameter of the current measurement window based on the time parameter setting function transmitted by the network.

[0044] Generally, an example of determining the offset using a linear function will be described. Assuming the offset change function is n + 3 and the unit is ms, starting from the time when the UE receives the configuration information, the offset of the first measurement window is 1 + 3 = 4 ms, the offset of the second measurement window is 2 + 3 = 5 ms, and the offset of the third measurement window is 3 + 3 = 6 ms.

[0045] Generally, an example of determining the offset using a quadratic function will be described. Assuming the offset change function is n 2 + 3 and the unit is ms, starting from the time when the UE receives the configuration information, the offset of the first measurement window is 1 + 3 = 4 ms, the offset of the second measurement window is 4 + 3 = 7 ms, and the offset of the third measurement window is 9 + 3 = 12 ms.

[0046] In some embodiments, the serial number of the measurement window represents the serial number of the measurement window in which the UE can perform measurements, starting from the time when the UE receives the network configuration information.

[0047] The position of the measurement window is determined as follows. First, the position of the first measurement window is the position of the closest time window that satisfies the corresponding time parameter set by the network, starting from the time when the UE receives the network configuration information. The position of the nth measurement window is the position of the closest time window that satisfies the corresponding time parameter set by the network from the time when the (n - 1)th measurement window ends, provided that n ≥ 2 and n is an integer.

[0048] Taking the determination of the measurement window using the initial time parameter and the time parameter change rate as an example.

[0049] Generally, FIG. 5 shows a schematic diagram for determining a measurement window based on the offset change rate provided by an exemplary embodiment of the present disclosure. As shown in FIG. 5, the UE received the network configuration information at time t0. The configuration information indicates that the initial offset offset = 0, the offset change rate is 1, the period is 4, and the length of the time window is 1. In this case, the first time window 501 with time t0 as the start time is used as the first measurement window that satisfies the time parameters. In the second period with a period of 4, the second time window 502 with an offset of 1 is used as the second measurement window that satisfies the time parameters. Subsequently, the third time window 503 in the third period is obtained as the measurement window that satisfies the time parameters, and so on.

[0050] Generally, FIG. 6 shows a schematic diagram for determining a measurement window based on the length change rate of the time window provided by an exemplary embodiment of the present disclosure. As shown in FIG. 6, the UE received the network configuration information at time t0. The configuration information indicates that the offset offset = 0, the period is 4, the initial length of the time window is 1, and the time window change rate is 1. In this case, with time t0 as the start time, the first time window 601 with a length of 1 is used as the first measurement window that satisfies the time parameters. In the second period with a period of 4, the second time window 602 with an offset of 0 and a length of 2 is used as the second measurement window that satisfies the time parameters. Subsequently, the third time window 603 with a length of 3 in the third period is obtained as the measurement window that satisfies the time parameters, and so on.

[0051] Generally, FIG. 7 shows a schematic diagram for determining a measurement window based on the periodic change rate provided by an exemplary embodiment of the present disclosure. As shown in FIG. 7, the UE received the network configuration information at time t0. The configuration information indicates that the offset = 0, the initial period is 3, the periodic change rate is 1, and the length of the time window is 1. In this case, taking time t0 as the start time, the first time window 701 with a length of 1 is taken as the first measurement window that satisfies the time parameter. After the first period (three time windows) has elapsed, the fourth time window 702 is taken as the second measurement window that satisfies the time parameter. Subsequently, the time window 703 after the second period (four time windows) has elapsed is obtained as the third measurement window that satisfies the time parameter, and so on.

[0052] In some embodiments, the above configuration information further includes a cell list and / or a satellite list. The cell list is used to indicate the cells to which the dynamic adjustment rules set in the configuration information are applied. The dynamic adjustment rules are for adjusting the time parameters of the measurement windows of the cells in the cell list. The satellite list is used to indicate the satellites to which the dynamic adjustment rules set in the configuration information are applied. The dynamic adjustment rules are applied to adjust the time parameters of the measurement windows of the satellites in the satellite list, or the dynamic adjustment rules are applied to adjust the time parameters of the measurement windows of the cells corresponding to the satellites in the satellite list.

[0053] Optionally, when the measurement windows calculated and obtained based on at least two sets of configuration information overlap, the network can instruct the UE on the measurement window determination method via the shared mode indication information, or the UE can also use the default measurement window determination method to determine the measurement window from the overlapping measurement windows for measurement. Here, the default measurement window determination method includes at least one of a random determination method, a priority determination method, and an extended measurement method.

[0054] In summary, the cell measurement method provided by the embodiments of the present disclosure sets the dynamic adjustment rule of the time parameter of the measurement window according to the configuration information. The UE can obtain the time parameter information of subsequent SMTC / measurement Gap, such as values such as offset / duration length, based on the configuration information, and can effectively reduce the update frequency of SMTC / measurement Gap.

[0055] In some embodiments, the configuration information sent from the network device to the terminal device includes shared mode indication information. FIG. 8 is a flowchart of a cell measurement method provided by another embodiment of the present disclosure, and this method will be described by taking the application to the UE as an example. As shown in FIG. 8, this method includes the following steps 801 and 802.

[0056] In step 801, receive configuration information including shared mode indication information. The shared mode indication information is used to indicate the window determination method when the measurement windows calculated and obtained based on at least two sets of configuration information overlap. That is, the shared mode indication information is used to indicate the behavior of the UE when the measurement windows calculated and obtained based on multiple sets of measurement window configuration information overlap. The measurement window determination method indicated by the shared mode indication information includes at least one of a random determination method, a priority determination method, and an extended measurement method.

[0057] In step 802, determine the measurement window based on the shared mode indication information. 1. When the shared mode indication information indicates the random determination method, randomly determine the measurement window from the measurement windows calculated and obtained based on at least two sets of configuration information and perform measurements. That is, when the measurement windows calculated and obtained based on multiple sets of measurement window setting information overlap, the UE randomly performs corresponding measurements based on one of the measurement windows.

[0058] 2. When the shared mode indication information indicates the priority determination method, measurements are performed using the measurement window with the highest priority among the measurement windows calculated and obtained based on at least two sets of setting information. Here, the measurement window with the highest priority includes the measurement window calculated and obtained based on the setting information with the highest priority. When the measurement windows calculated and obtained based on multiple sets of measurement window setting information overlap, the UE selects the measurement window calculated and obtained based on the measurement window setting information with the highest priority and performs corresponding measurements.

[0059] Optionally, when there are multiple pieces of measurement window setting information with the highest priority, one measurement window is randomly selected from the multiple pieces of measurement window setting information with the highest priority, and corresponding measurements are performed.

[0060] Optionally, when the measurement window setting information does not include priority indication information, the default is the highest or lowest priority.

[0061] In some embodiments, the priority of the measurement window setting information can be determined by at least one of the following methods 2.1 to 2.3.

[0062] 2.1. The priority of the measurement window setting information may be included in the measurement window setting information or may be set individually. That is, the setting information includes a priority indication resource for indicating the priority corresponding to the measurement window set in the current setting information. Optionally, when the setting information does not include priority indication information, by default, the measurement window set in the setting information has the highest priority or the lowest priority.

[0063] 2.2. Use methods such as RRC signaling, MAC CE signaling, and system message broadcast to instruct the UE on the priority of the measurement target cell. Select the highest priority in the applicable cell list corresponding to the measurement window setting information as the priority of the measurement window set in the current measurement window setting information. Or select the lowest priority in the applicable cell list corresponding to the measurement window setting information as the priority of the measurement window set in the current measurement window setting information. Or select the average priority in the applicable satellite list corresponding to the measurement window setting information as the priority of the measurement window set in the current measurement window setting information.

[0064] 2.3. Use methods such as RRC signaling, MAC CE signaling, and system message broadcast to instruct the UE on the priority of the measurement target satellite. Here, select the highest priority in the applicable satellite list corresponding to the measurement window setting information as the priority of the measurement window set in the current measurement window setting information. Or select the lowest priority in the applicable satellite list corresponding to the measurement window setting information as the priority of the measurement window set in the current measurement window setting information. Or select the average priority in the applicable satellite list corresponding to the measurement window setting information as the priority of the measurement window set in the current measurement window setting information.

[0065] 3. When the shared mode indication information indicates the extended measurement method, perform measurements using the extended measurement window based on the measurement window calculated and obtained based on at least two sets of setting information. The extended measurement window includes the range of the measurement window calculated and obtained based on at least two sets of setting information. That is, when the measurement windows calculated and obtained based on a plurality of sets of measurement window setting information overlap, the measurement windows are extended to a range that can include two overlapping measurement windows, and then the corresponding measurements are executed simultaneously.

[0066] In some embodiments, the frequency points and / or subcarrier intervals of the reference signals measured by the measurement windows calculated and obtained based on at least two sets of setting information are the same. That is, when the frequency points and / or subcarrier intervals of the reference signals that the overlapping measurement windows need to measure are the same, the measurement windows are extended to a range that can include two overlapping measurement windows, and then the corresponding measurements can be executed simultaneously.

[0067] In one embodiment, when the measurement windows calculated and obtained based on a plurality of sets of measurement window setting information overlap, if the frequency points or subcarrier intervals of the reference signals that the overlapping measurement windows need to measure are different, other methods within the shared mode setting are selected.

[0068] The embodiment shown in FIG. 8 can form an overall embodiment in combination with the embodiment shown in FIG. 4. That is, the setting information provided in FIG. 4 and the setting information provided in FIG. 8 are the same setting information. It may also be realized as independent embodiments. That is, the setting information provided in FIG. 4 and the setting information provided in FIG. 8 are different setting information, and the present disclosure does not limit this.

[0069] In summary, the method provided by the embodiments of the present disclosure defines a processing method when transmitting measurement windows where SMTC / measurement Gap overlaps. Based on the selected method, the UE can efficiently determine the cells that need to be measured or preferentially measure the cells that require more measurements.

[0070] In some embodiments, the cell measurement method provided by the embodiments of the present disclosure will be described in accordance with the implementation environments of the aforementioned network devices and terminal devices. FIG. 9 is a flowchart of a cell measurement method provided by another embodiment of the present disclosure. Taking the application of the method to a communication system as an example, as shown in FIG. 9, this method includes the following steps 901 to 903.

[0071] In step 901, the network device transmits configuration information to the terminal based on the location information of the terminal and the ephemeris information of the satellite.

[0072] Here, the location information of the terminal includes the exact location information of the terminal or the approximate location information of the terminal, and the ephemeris information of the satellite includes the ephemeris information of the serving satellite and the ephemeris information of the adjacent satellite to be measured. Here, the exact location information refers to relatively accurate positioning information reported by the terminal, such as the distance information and direction information between the terminal and the network device, and the approximate location information refers to relatively approximate positioning information reported by the terminal, such as the cell where the terminal is located.

[0073] In one embodiment, when the UE reports relatively approximate location information, the network needs to set a measurement window applicable to the UEs within the range of this approximate location information.

[0074] In one embodiment, considering the inaccuracy of the UE's location information and the movement of the UE, the network can appropriately extend the duration of the measurement window when setting it.

[0075] In one embodiment, when the network detects that the position of the UE has changed and the original measurement window setting is not applicable to the current position of the UE, the network can update the measurement window setting information of this UE, or the network can update the measurement window setting information periodically, or the network can define the validity period of the measurement window setting information and update the measurement window setting information when it detects that the measurement window setting is invalid.

[0076] Optionally, the setting information includes a dynamic adjustment rule for instructing a time parameter, and / or the setting information includes shared mode indication information.

[0077] In some embodiments, the setting information is used to instruct a dynamic adjustment rule of the time parameter when the terminal performs cell measurement. The setting information includes at least one of a time parameter change rate and a time parameter setting function as a dynamic adjustment rule.

[0078] The time parameter change rate is used in combination with the initial time parameter to determine the measurement window, and the time parameter setting function is used to determine the time parameter of the measurement window based on the serial number of the measurement window and the functional relationship. The time parameter setting function includes at least one of a linear function and a quadratic function, but is not limited thereto.

[0079] The initial time parameter is set in the setting information, or the initial time parameter is predefined, or the initial time parameter is preset. The measurement window includes at least one of a Synchronization Signal Block Measurement Timing Configuration (SSB-MTC) and a measurement gap (Gap). The time parameter includes at least one of an offset, a period, and a duration. Optionally, when the measurement window includes a measurement gap, the time parameter further includes a measurement gap timing advance.

[0080] In some embodiments, the above configuration information further includes a cell list and / or a satellite list. The cell list is used to indicate cells to which the dynamic adjustment rules set in the configuration information apply. The dynamic adjustment rules are for adjusting the time parameters of the measurement windows of the cells in the cell list. The satellite list is used to indicate satellites to which the dynamic adjustment rules set in the configuration information apply. The dynamic adjustment rules are applied to adjust the time parameters of the measurement windows of the satellites in the satellite list, or the dynamic adjustment rules are applied to adjust the time parameters of the measurement windows of the cells corresponding to the satellites in the satellite list.

[0081] Optionally, the configuration information further includes shared mode indication information for indicating a window determination method when measurement windows calculated and obtained based on at least two sets of configuration information overlap. That is, when measurement windows calculated and obtained based on at least two sets of configuration information overlap, the network can indicate the measurement window determination method to the UE via the shared mode indication information.

[0082] Alternatively, the UE may determine a measurement window from the overlapping measurement windows using a default measurement window determination method and perform measurements. The default measurement window determination method includes at least one of a random determination method, a priority determination method, and an extended measurement method.

[0083] For example, when the configuration information does not include shared mode indication information, the UE uses the default measurement window determination method to determine a measurement window from the overlapping measurement windows and perform measurements.

[0084] In some embodiments, data transmission with the terminal is performed in unselected measurement windows among the measurement windows calculated and obtained based on at least two sets of configuration information according to the window determination method.

[0085] Optionally, the UE reports the measurement window selected by the UE when overlapping to the network device. As a result, the network device performs data transmission with the terminal in unselected measurement windows among the measurement windows calculated and obtained based on at least two sets of configuration information. Alternatively, when the measurement window that the UE can select according to the configuration is unique, the network device may determine the measurement window selected by the UE based on the transmitted configuration information, and perform data transmission with the terminal in unselected measurement windows among the measurement windows calculated and obtained based on at least two sets of configuration information.

[0086] In step 902, the terminal receives configuration information. The configuration information is information for the network device to configure a measurement window for the UE based on the location information of the UE and the ephemeris information of the satellite, and the configuration information includes a dynamic configuration rule for the time parameter of the measurement window.

[0087] The types of satellites include at least one of LEO satellites, MEO satellites, GEO satellites, unmanned aerial vehicle platform (UAS Platform) satellites, and HEO satellites. The measurement window includes at least one of SMTC and measurement Gap.

[0088] In some embodiments, the dynamic adjustment rule includes at least one of a time parameter change rate and a time parameter configuration function. The time parameter change rate is used to represent the periodic change law of the time parameter, and the time parameter configuration function is used to represent the functional relationship between the serial number of the time window and the time parameter.

[0089] Optionally, the configuration information can be transmitted to the UE via Radio Resource Control (RRC) signaling.

[0090] Optionally, the configuration information includes shared mode indication information. The shared mode indication information is used to indicate a window determination method when measurement windows calculated and obtained based on at least two sets of configuration information overlap. That is, the shared mode indication information is used to indicate the behavior of the UE when measurement windows calculated and obtained based on multiple sets of measurement window configuration information overlap.

[0091] The measurement window determination method indicated by the shared mode indication information includes at least one of a random determination method, a priority determination method, and an extended measurement method.

[0092] In step 903, the terminal dynamically determines a measurement window based on the configuration information.

[0093] In some embodiments, the measurement window is directly determined based on a dynamic adjustment rule, or the measurement window is determined based on a dynamic adjustment rule and an initial time parameter.

[0094] When the configuration information includes shared mode indication information and measurement windows calculated and obtained based on at least two sets of configuration information overlap, the measurement window is determined based on the shared mode indication information for measurement.

[0095] In summary, the method provided by the embodiments of the present disclosure sets the dynamic adjustment rule of the time parameter of the measurement window according to the configuration information, so that the UE can obtain the time parameter information of subsequent SMTC / measurement Gap, such as the value of the offset / duration length, based on the configuration information, and can effectively reduce the update frequency of SMTC / measurement Gap. The processing method when transmitting a measurement window where SMTC / measurement Gap overlaps is defined, and based on the selected method, the UE can efficiently determine the cell that needs to be measured or preferentially measure the cell that requires more measurement.

[0096] FIG. 10 is a block diagram of the configuration of a cell measurement apparatus provided by an exemplary embodiment of the present disclosure. As shown in FIG. 10, the apparatus includes a receiving module 1010 that receives configuration information for instructing a dynamic adjustment rule of a time parameter when the terminal performs cell measurement, and a processing module 1020 that determines a measurement window based on the dynamic adjustment rule.

[0097] In an alternative embodiment, the processing module 1020 determines the measurement window based on the dynamic adjustment rule and the initial time parameter.

[0098] In an alternative embodiment, the configuration information includes a time parameter change rate. The processing module 1020 determines the measurement window based on the initial time parameter and the time parameter change rate.

[0099] In an alternative embodiment, the configuration information includes a time parameter setting function. The processing module 1020 determines the measurement window based on the time parameter setting function.

[0100] In an alternative embodiment, the time parameter setting function includes at least one of a linear function and a quadratic function, but is not limited thereto.

[0101] In an alternative embodiment, the initial time parameter is set in the setting information, or the initial time parameter is predefined, or the initial time parameter is pre-set.

[0102] In an alternative embodiment, the measurement window includes at least one of synchronization signal block measurement timing configuration (SSB-MTC) and measurement gap (Gap).

[0103] In an alternative embodiment, the time parameter includes at least one of an offset, a period, and a duration.

[0104] In an alternative embodiment, when the measurement window includes the measurement Gap, the time parameter further includes a timing advance.

[0105] In an alternative embodiment, the setting information further includes a cell list and / or a satellite list. The cell list is used to indicate cells to which the dynamic adjustment rules set in the setting information are applied. The dynamic adjustment rules are applied to adjust the time parameters of the measurement windows of the cells in the cell list. The satellite list is used to indicate satellites to which the dynamic adjustment rules set in the setting information are applied. The dynamic adjustment rules are applied to adjust the time parameters of the measurement windows of the satellites in the satellite list, or the dynamic adjustment rules are applied to adjust the time parameters of the measurement windows of the cells corresponding to the satellites in the satellite list.

[0106] In an alternative embodiment, the setting information further includes shared mode indication information. The shared mode indication information is used to indicate a window determination method when measurement windows calculated and obtained based on at least two sets of setting information overlap.

[0107] In an alternative embodiment, when the shared mode indication information indicates a random determination method, the processing module 1020 further randomly determines a measurement window from the measurement windows calculated and obtained based on at least two sets of configuration information and performs a measurement using the determined measurement window.

[0108] In an alternative embodiment, when the shared mode indication information indicates a priority determination method, the processing module 1020 further performs a measurement using the measurement window with the highest priority among the measurement windows calculated and obtained based on at least two sets of configuration information, and the measurement window with the highest priority includes the measurement window calculated and obtained based on the configuration information with the highest priority.

[0109] In an alternative embodiment, when the shared mode indication information indicates an extended measurement method, the processing module 1020 further performs a measurement using an extended measurement window based on the measurement windows calculated and obtained based on at least two sets of configuration information, and the extended measurement window includes the range of the measurement windows calculated and obtained based on at least two sets of configuration information.

[0110] In an alternative embodiment, the frequency points and / or subcarrier intervals of the reference signal measured using the measurement windows calculated and obtained based on at least two sets of configuration information are the same.

[0111] FIG. 11 is a block diagram of a cell measurement apparatus provided by another exemplary embodiment of the present disclosure. As shown in FIG. 11, the apparatus includes a transmission module 1110 that transmits configuration information for instructing a dynamic adjustment rule of time parameters when the terminal performs cell measurement to the terminal based on the position information of the terminal and the ephemeris information of the satellite.

[0112] In an alternative embodiment, the configuration information includes at least one of a time parameter change rate and a time parameter setting function.

[0113] In an alternative embodiment, the time parameter setting function includes, but is not limited to, at least one of a linear function and a quadratic function.

[0114] In an alternative embodiment, the setting information further includes an initial time parameter.

[0115] In an alternative embodiment, the measurement window includes at least one of synchronization signal block measurement timing setting (SSB-MTC) and measurement interval (Gap).

[0116] In an alternative embodiment, the time parameter includes at least one of an offset, a period, and a duration.

[0117] In an alternative embodiment, when the measurement window includes the measurement Gap, the time parameter further includes a timing advance.

[0118] In an alternative embodiment, the setting information further includes a cell list and / or a satellite list. The cell list is used to indicate the cells to which the dynamic adjustment rules set in the setting information are applied. The dynamic adjustment rules are applied to the adjustment of the time parameters of the measurement windows of the cells in the cell list. The satellite list is used to indicate the satellites to which the dynamic adjustment rules set in the setting information are applied. The dynamic adjustment rules are applied to the adjustment of the time parameters of the measurement windows of the satellites in the satellite list, or the dynamic adjustment rules are applied to the adjustment of the time parameters of the measurement windows of the cells corresponding to the satellites in the satellite list.

[0119] In an alternative embodiment, the setting information further includes shared mode indication information. The shared mode indication information is used to indicate a window determination method when the measurement windows calculated and obtained based on at least two sets of setting information overlap.

[0120] In an alternative embodiment, the transmission module 1110 / reception module 1120 performs data transmission with the terminal in a measurement window that is not selected among the measurement windows calculated and obtained based on the at least two sets of configuration information according to the window determination method.

[0121] In an alternative embodiment, the location information of the terminal includes the exact location information of the terminal or the approximate location information of the terminal.

[0122] In an alternative embodiment, the ephemeris information of the satellite includes the ephemeris information of the serving satellite and the ephemeris information of the adjacent satellite to be measured.

[0123] In summary, the apparatus provided by the embodiments of the present disclosure sets the dynamic adjustment rule of the time parameter of the measurement window according to the configuration information, so that the UE can obtain the time parameter information of subsequent SMTC / measurement Gap, such as the values of offset / duration length, based on the configuration information, and can effectively reduce the update frequency of SMTC / measurement Gap. The processing method when transmitting a measurement window where SMTC / measurement Gap overlaps is defined, and based on the selected method, the UE can efficiently determine the cell that needs to be measured or preferentially measure the cell that requires more measurement.

[0124] FIG. 12 shows a schematic configuration diagram of a communication device (network device or terminal) provided by an exemplary embodiment of the present disclosure. The communication device includes a processor 101, a receiver 102, a transmitter 103, a memory 104, and a bus 105.

[0125] The processor 101 includes one or more processing cores, and the processor 101 executes various functional applications and information processing by executing software programs and modules.

[0126] The receiver 102 and the transmitter 103 can be realized as one communication component, and the communication component can be one communication chip.

[0127] The memory 104 is connected to the processor 101 via the bus 105. The memory 104 is configured to store at least one instruction, and the processor 101 is configured to execute the at least one instruction to realize each step in the embodiments of the above method.

[0128] Also, the memory 104 can be realized by any type of volatile or non-volatile storage device or a combination thereof, and the volatile or non-volatile storage device includes, but is not limited to, a magnetic disk or an optical disk, an electrically erasable programmable read-only memory (EEPROM), an erasable programmable read-only memory (EPROM), a static random access memory (SRAM), a read-only memory (ROM), a magnetic memory, a flash memory, a programmable read-only memory (PROM).

[0129] In an exemplary embodiment, a computer-readable storage medium is further provided, and at least one instruction, at least one program, a code set, or an instruction set is stored in the computer-readable storage medium. The at least one instruction, the at least one program, the code set, or the instruction set is loaded and executed by the processor to realize a cell measurement method executed by a terminal device or a network device provided by the embodiments of the above methods.

[0130] Those skilled in the art can understand that all or part of the steps to implement the above embodiments can be completed by hardware, or can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium, and the storage medium may be a read-only memory, a magnetic disk, an optical disk, or the like.

[0131] The above description is only a selective embodiment of the present disclosure, and is not intended to limit the present disclosure. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present disclosure should all be included in the protection scope of the present disclosure.

Claims

1. A cell measurement method executed by a terminal, comprising: receiving configuration information transmitted from a network device; when measurement windows obtained with at least two sets of configuration information overlap, performing measurement using the measurement window with the highest priority, wherein the measurement window with the highest priority includes the measurement window obtained based on the configuration information with the highest priority. A cell measurement method characterized by the above.

2. The measurement window includes a measurement interval (Gap). The cell measurement method according to Claim 1, characterized by the above.

3. The configuration information includes the priority of the configuration information. The cell measurement method according to Claim 1 or 2, characterized by the above.

4. The configuration information further includes at least one of: the change rate of a time parameter; the setting function of a time parameter; a cell list; a satellite list. The cell measurement method according to Claim 3, characterized by the above.

5. The time parameter includes at least one of an offset, a period, and a duration. The cell measurement method according to Claim 4, characterized by the above.

6. A cell measurement method executed by a network device, comprising: transmitting configuration information to a terminal based on the location information of the terminal and the ephemeris information of a satellite; when measurement windows obtained with at least two sets of configuration information overlap, performing measurement using the measurement window with the highest priority, wherein the measurement window with the highest priority includes the measurement window obtained based on the configuration information with the highest priority. A cell measurement method characterized by the above.

7. The measurement window includes a measurement interval (Gap). The cell measurement method according to Claim 6, characterized by the above.

8. The configuration information includes the priority of the configuration information. The cell measurement method according to Claim 6 or 7, characterized by the above.

9. The configuration information further includes at least one of: the change rate of a time parameter; the setting function of a time parameter; a cell list; a satellite list. The cell measurement method according to Claim 8, characterized by the above.

10. The setting function of the time parameter includes at least one of a linear function and a quadratic function. The cell measurement method according to Claim 9, characterized by the above.

11. The time parameter includes at least one of an offset, a period, and a duration length. The cell measurement method according to claim 9, characterized in that.

12. A terminal, a processor, a transceiver connected to the processor, and a memory for storing executable instructions of the processor, and the processor is configured to load and execute the executable instructions to implement the cell measurement method according to any one of claims 1 to 5. A terminal characterized by that.

13. A network device, a processor, a transceiver connected to the processor, and a memory for storing executable instructions of the processor, and the processor is configured to load and execute the executable instructions to implement the cell measurement method according to any one of claims 6 to 11. A network device characterized by that.

14. A computer program, wherein the computer program implements the cell measurement method according to any one of claims 1 to 5. A computer program characterized by that.

15. A computer program, wherein the computer program implements the cell measurement method according to any one of claims 6 to 11. A computer program characterized by that.

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