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WO2021088770A1 - Dispositif et procédé de configuration de mesure - Google Patents

Dispositif et procédé de configuration de mesure Download PDF

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Publication number
WO2021088770A1
WO2021088770A1 PCT/CN2020/125944 CN2020125944W WO2021088770A1 WO 2021088770 A1 WO2021088770 A1 WO 2021088770A1 CN 2020125944 W CN2020125944 W CN 2020125944W WO 2021088770 A1 WO2021088770 A1 WO 2021088770A1
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WIPO (PCT)
Prior art keywords
terminal device
measurement
gap
base station
configuration information
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PCT/CN2020/125944
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English (en)
Chinese (zh)
Inventor
王洲
王键
金乐
刘海义
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists

Definitions

  • This application relates to the field of communication technology, and in particular to a measurement configuration method and equipment.
  • the terminal equipment In a communication system, in order to ensure the service continuity and communication quality of the terminal equipment, the terminal equipment usually needs to perform cell measurement, thereby realizing cell reselection and cell handover.
  • the types of cell measurement include intra-frequency measurement and inter-frequency/different system measurement.
  • the terminal device When a terminal device initially accesses or performs inter-frequency/different system measurement in the process of radio resource control (radio resource control, RRC) connected state (RRC_connective), the terminal device needs to use the gap measurement method to perform cell measurement.
  • the specific process includes : In the gap, the terminal device receives the reference signal of the neighboring cell, and measures the reference signal of the neighboring cell. After the measurement is completed, the terminal device sends a measurement report (measurement report) to the base station that manages the serving cell. Then the base station switches the terminal equipment to a cell with better signal quality according to the measurement report.
  • RRC radio resource control
  • the base station that manages the serving cell needs to perform measurement configuration and send the measurement configuration information to the terminal device.
  • the measurement configuration information that the terminal device can receive can determine the location of each gap to perform neighbor cell measurements.
  • the gap length is 6 milliseconds (ms).
  • the measurement configuration information includes: measurement gap repetition period (MGRP) (also known as gap period), measurement gap length (measurement gap length, MGL) (abbreviated as gap length), and the start of the measurement gap. Start position (gap offset).
  • the measurement configuration information may also include information such as a measurement report reporting strategy and a list of neighboring cells to be measured.
  • the terminal equipment in the gap should be able to receive the reference signals of all neighboring cells to be measured.
  • the position of the gap is determined by the terminal equipment according to the timing of the serving cell, and the time domain position of each neighboring cell sending the reference signal is determined according to the timing of the corresponding neighboring cell. Therefore, the gap determined by the terminal device according to the measurement configuration information may not contain the time-domain positions of the reference signals of some neighboring cells to be measured. As a result, the terminal device cannot receive the reference signals of these neighboring cells to be measured, and thus cannot complete all the reference signals to be measured. Measurement of the cell.
  • This application provides a measurement configuration method and equipment, which are used to increase the probability that the measurement gap covers the reference signals of all neighboring cells to be measured during the cell measurement process of the terminal equipment, and improve the success rate and efficiency of the cell measurement of the terminal equipment.
  • the embodiments of the present application provide a measurement configuration method, which can be applied to various scenarios in the communication system shown in FIG. 2 where inter-frequency/different-system measurement needs to be performed in a gap measurement mode.
  • the method includes: a base station sends first measurement configuration information to the terminal device; wherein the first measurement configuration information is used to instruct the terminal device to adjust the value of the gap length used in cell measurement from G1 to G2, where , G2 is greater than G1.
  • the base station may, after determining that the cell measurement of the terminal device fails, or include the NR cell in the neighboring cells to be measured of the terminal device, or upon receiving an instruction, or within a time window, send the first Measurement configuration information.
  • the base station instructs the terminal device to use a longer gap when subsequently performing cell measurement.
  • the probability that the terminal device receives the reference signals of all neighboring cells to be measured in the gap can be increased. Therefore, this method can improve the success rate and efficiency of the terminal device cell measurement.
  • the first measurement configuration information is also used to indicate that the starting position of the gap is adjusted from P1 to P2, where P2>P1.
  • the base station can migrate the gap position when reconfiguring the gap, and eliminate the gap position before adjustment, so that the terminal device can avoid occupying the original gap position for cell measurement and lead to service throughput of the terminal device. The rate drops.
  • the base station may determine G2 through the following two methods:
  • Method 1 The base station determines G2 according to the value T1 of the reference signal transmission period of the neighboring cell to be measured, where T1>G1;
  • Method 2 The base station determines G2 according to G1.
  • the gap length reconfigured by the base station for the terminal device is adjusted based on the reference signal transmission period of the neighboring cell to be measured. Therefore, this method can improve the adjusted gap coverage of all to be measured.
  • the probability of the reference signal of the neighboring cell can increase the probability that the terminal device can receive the reference signal of all neighboring cells in the adjusted gap, thereby improving the success rate and efficiency of the cell measurement of the terminal device.
  • the base station may increase the length of the gap on the basis of the original gap length. Since the second embodiment is to determine G2 based on the reference signal transmission period of the neighboring cell, however, when the reference signal transmission period of the neighboring cell is large (for example, T1 is equal to 40, 80, or 160), the second embodiment is used to determine G2 The gap is too long, which further causes a large loss in the service throughput of the terminal device. Obviously, this method can increase the probability that the adjusted gap covers the reference signals of all neighboring cells to be measured, thereby improving the success rate and efficiency of the terminal device cell measurement, and ensuring the service throughput rate of the terminal device.
  • k is equal to 2, 4, 8, 16, 32.
  • r 1.
  • the base station before the base station sends the first measurement configuration information to the terminal device, uses the value T1 of the reference signal transmission period of the neighboring cell and the gap start position difference Value, determine G2, where T1>G1, and the start position difference of the gap is P2-P1.
  • the base station can adjust the length of the gap on the basis of the reference signal transmission period of the neighboring cell to be measured, and eliminate the length and position of the gap before adjustment from the gap length and the starting position.
  • this design can increase the probability that the adjusted gap covers the reference signals of all neighboring cells to be measured, thereby improving the success rate and efficiency of the terminal device cell measurement, and ensuring the service throughput rate of the terminal device.
  • n is an integer greater than or equal to zero.
  • G2 can be divisible by 6.
  • the base station may determine that the cell measurement of the terminal device fails in the following manner:
  • Manner 1 The base station does not receive a measurement report from the terminal device within a set time period, and it is determined that the cell measurement of the terminal device fails.
  • Manner 2 The base station receives a measurement report from the terminal device, and when the base station determines that the measurement report does not include the measurement results of all the cells to be measured, it determines that the cell measurement of the terminal device fails.
  • Manner 3 The base station receives a measurement report from the terminal device, and when the base station determines that there are invalid measurement results of some cells to be measured in the measurement report, it determines that the terminal device cell measurement fails.
  • the first measurement configuration information is also used to indicate measurement
  • the reporting strategy of the report is periodic triggering, or a reporting strategy that prefers the arrival time first in periodic triggering or event triggering.
  • the first measurement configuration information is also used to instruct the terminal device to adjust the value of the gap period used in cell measurement from S1 to S2, where S2>S1.
  • the base station may further adjust the gap period used by the terminal device for subsequent cell measurement, that is, adjust the gap period from S1 to S2, where S2>S1.
  • the base station may
  • the base station after the base station sends the first measurement configuration information to the terminal device, it may also send second measurement configuration information to the terminal device; wherein the second measurement configuration information is used In the instruction: the terminal device stops performing cell measurement; or the second measurement configuration information is used to indicate at least one of the following:
  • adjusting the length (and starting position) of the gap used by the terminal equipment for subsequent cell measurement can effectively increase the probability that the adjusted gap covers the reference signals of all neighboring cells to be measured, thereby increasing the cell of the terminal equipment The success rate and efficiency of the measurement.
  • the base station may send the second measurement configuration information to the terminal device to compensate for the service throughput rate of the terminal device.
  • the embodiments of the present application provide a measurement configuration method, which can be applied to various scenarios in the communication system shown in FIG. 2 where inter-frequency/different-system measurement needs to be performed in a gap measurement manner.
  • the method includes: a terminal device receives first measurement configuration information sent by a base station, where the first measurement configuration information is used to instruct the terminal device to adjust a gap length value used in cell measurement from G1 to G2, where: G2 is greater than G1; the terminal device determines the location of the gap according to the first measurement configuration information, and performs cell measurement in the gap, where the length of the gap is G2.
  • the base station instructs the terminal device to use a longer gap when subsequently performing cell measurement.
  • the probability that the terminal device receives the reference signals of all neighboring cells to be measured in the gap can be increased. Therefore, this method can improve the success rate and efficiency of the terminal device cell measurement.
  • an embodiment of the present application provides a communication device, including a unit for performing each step in any of the above aspects.
  • an embodiment of the present application provides a communication device, including at least one processing element and at least one storage element, wherein the at least one storage element is used to store programs and data, and the at least one processing element is used to execute the above The method provided by either side.
  • an embodiment of the present application provides a communication system, including a base station and a terminal device, wherein the base station has the function of executing the method provided in the first aspect of the present application, and the terminal device is capable of executing the second aspect of the present application. The function of the provided method.
  • the embodiments of the present application also provide a computer program, which when the computer program runs on a computer, causes the computer to execute the method provided in any one of the foregoing aspects.
  • the embodiments of the present application also provide a computer-readable storage medium in which a computer program is stored.
  • the computer program is executed by a computer, the computer can execute any of the above The method provided by the aspect.
  • an embodiment of the present application also provides a chip, which is used to read a computer program stored in a memory and execute the method provided in any one of the foregoing aspects.
  • an embodiment of the present application also provides a chip system, which includes a processor, and is configured to support a computer device to implement the method provided in any one of the foregoing aspects.
  • the chip system further includes a memory, and the memory is used to store the necessary programs and data of the computer device.
  • the chip system can be composed of chips, or it can include chips and other discrete devices.
  • FIG. 1A is a schematic diagram of gap measurement in the prior art
  • FIG. 1B is a schematic diagram of the gap position provided by an embodiment of the application.
  • FIG. 1C is a schematic diagram of the time domain position of the reference signal of the NR cell provided by an embodiment of the application;
  • FIG. 1D is a schematic diagram of time-domain positions of reference signals of gap and NR cells provided by an embodiment of this application;
  • FIG. 2 is an architecture diagram of a communication system provided by an embodiment of this application.
  • FIG. 3 is a flowchart of a measurement configuration method provided by an embodiment of the application.
  • FIG. 4A is a schematic diagram of comparison before and after the first gap adjustment provided by an embodiment of the application.
  • 4B is a schematic diagram of comparison before and after the second gap adjustment provided by the embodiment of the application.
  • 4C is a schematic diagram of comparison before and after a third gap adjustment provided by an embodiment of the application.
  • FIG. 4D is a schematic diagram of comparison before and after the fourth gap adjustment provided by the embodiment of the application.
  • 4E is a schematic diagram of comparison before and after the fifth gap adjustment provided by the embodiments of the application.
  • FIG. 5 is a structural diagram of a communication device provided by an embodiment of this application.
  • FIG. 6 is a structural diagram of a communication device provided by an embodiment of this application.
  • This application provides a measurement configuration method and device, which are used to increase the probability that the measurement gap covers the reference signals of all neighboring cells to be measured during the cell measurement process of the terminal device, and improve the efficiency of the cell measurement of the terminal device.
  • the method and the device are based on the same technical concept. Since the principles of the method and the device to solve the problem are similar, the implementation of the device and the method can be referred to each other, and the repetition will not be repeated.
  • Terminal equipment is a device that provides users with voice and/or data connectivity.
  • the terminal equipment may also be called user equipment (UE), mobile station (mobile station, MS), mobile terminal (mobile terminal, MT), and so on.
  • UE user equipment
  • MS mobile station
  • MT mobile terminal
  • the terminal device may be a handheld device with a wireless connection function, a vehicle-mounted device, and the like.
  • some examples of terminal devices are: mobile phones (mobile phones), tablet computers, notebook computers, handheld computers, mobile internet devices (MID), wearable devices, virtual reality (VR) devices, augmented Augmented reality (AR) equipment, wireless terminals in industrial control, wireless terminals in self-driving (self-driving), wireless terminals in remote medical surgery, and smart grid (smart grid)
  • a base station is a device that connects terminal equipment to a wireless network in a communication system.
  • the base station can also be referred to as a network device, and can also be referred to as a radio access network (RAN) node (or device).
  • RAN radio access network
  • base stations are: gNB, evolved Node B (eNB), transmission reception point (TRP), radio network controller (RNC), node B (Node B) , NB), base station controller (BSC), base transceiver station (base transceiver station, BTS), home base station (for example, home evolved NodeB, or home Node B, HNB), or baseband unit (baseband unit) , BBU) etc.
  • eNB evolved Node B
  • TRP transmission reception point
  • RNC radio network controller
  • Node B Node B
  • BSC base station controller
  • BTS base transceiver station
  • home base station for example, home evolved NodeB, or home Node B, HNB
  • baseband unit baseband unit
  • the base station may include a centralized unit (CU) node and a distributed unit (DU) node.
  • CU centralized unit
  • DU distributed unit
  • This structure splits the protocol layer of the eNB in the long term evolution (LTE) system. Some of the protocol layer functions are placed under the centralized control of the CU, and some or all of the protocol layer functions are distributed in the DU. Centralized control of DU.
  • Measurement configuration information which is sent by the base station to the terminal equipment, to enable the terminal equipment to perform cell measurement based on the measurement configuration information.
  • the base station can send the measurement configuration information through RRC signaling.
  • the measurement configuration information may, but is not limited to, include at least one of the following measurement parameters: a measurement object, a list of neighbor cells to be measured, or gap configuration parameters (gap period, gap length, gap start position).
  • the base station may further send the measurement configuration information again to instruct the base station to adjust the value of at least one of the above measurement parameters. In this way, the base station can flexibly reconfigure the measurement parameters.
  • the base station instructs the base station to adjust the value of any measurement parameter through the measurement configuration information, which may include but is not limited to the following forms:
  • the measurement configuration information includes the adjusted value of the measurement parameter.
  • the measurement configuration information includes the adjustment value of the measurement parameter, and the adjustment value may be the difference between the adjusted value of the measurement parameter and the value before the adjustment.
  • the measurement configuration information includes an adjustment instruction of the measurement parameter.
  • the terminal device may determine the adjusted value of the measurement parameter according to the adjustment instruction of the measurement parameter in a manner agreed with the base station.
  • the measurement report is obtained by the terminal equipment after cell measurement and reported to the base station.
  • the measurement report may include the measurement result of the terminal device on the at least one neighboring cell to be measured, or the measurement results of all the neighboring cells to be measured. (Wherein, the measurement result of the neighboring cell to be measured for which the terminal device does not receive the reference signal is null or zero, and the measurement result of the at least one neighboring cell to be measured is the actual measurement value).
  • the terminal device may not report the measurement report, or the reported measurement report is empty, or each neighbor cell to be measured in the reported measurement report The measurement result of is empty or zero.
  • the measurement result of each neighboring cell to be measured may be the signal quality parameter of the neighboring cell to be measured.
  • the signal quality parameter may include one or more of the following parameters:
  • RSRP Reference signal received power
  • SINR signal to interference plus noise ratio
  • RSSI received signal strength indication
  • RSRQ reference signal received quality
  • the types of cell measurement include: same frequency measurement, different frequency/different system measurement.
  • the same frequency measurement means that the neighboring cell to be measured and the serving cell of the terminal device are in the same carrier frequency.
  • Inter-frequency/system measurement means that the neighboring cell to be measured and the serving cell of the terminal device are not on the same carrier frequency.
  • terminal equipment receives and sends signals through radio frequency channels, and a set of radio frequency channels generally work on a carrier frequency.
  • the terminal equipment can use one of the radio frequency channels to adjust to the carrier frequency of the serving cell to receive the serving cell.
  • the terminal equipment can also adjust other radio frequency channels to the carrier frequency of the neighboring cell to receive the reference signal of the neighboring cell. In this way, the terminal device can perform cell measurement without suspending service transmission.
  • the terminal equipment cannot perform service transmission and cell measurement at the same time, because the terminal equipment needs to adjust the radio frequency channel to the carrier frequency of the serving cell.
  • the terminal device stops interacting with the serving cell, and adjusts the radio frequency path to the carrier frequency of the neighboring cell to receive the reference signal of the neighboring cell.
  • the base station sends measurement configuration information to the terminal device to configure the terminal device for gap measurement.
  • the value of the gap period (MGRP) can be 40ms, 80ms, etc.; the maximum value of the gap length (MGL) is 6ms; the value of the start position of the gap (gapoffset)
  • the range can be 0-39, or 0-79, etc.
  • the terminal device can calculate the time domain position of the gap according to the above gap configuration parameters, as shown in Figure 1B. Specifically, the terminal device can calculate the time domain position of the gap with reference to the following formula:
  • subframe gapoffset mod 10
  • SFN is the system frame number of the serving cell of the terminal device
  • subframe is the subframe in the system frame of the SFN.
  • the terminal equipment in the gap configured for the terminal equipment in the base station should be able to receive the reference signals of all neighboring cells to be measured, so that the terminal equipment can achieve Measurement of all neighboring cells to be measured.
  • the time domain position of the gap is determined by the terminal device according to the timing of the serving cell, and the time domain position of the reference signal of each neighboring cell is determined according to the timing of the corresponding neighboring cell.
  • fourth generation long term evolution The 4 th Generation, 4G) communication technology (long term evolution, LTE) cell reference signal - reference signal cell (cell reference signal, CRS) are uniformly distributed in each sub-frame of.
  • 4G Long term evolution
  • LTE long term evolution
  • CRS cell reference signal
  • the fifth generation (The 5 th Generation, 5G) new air interface communication technologies (new radio, NR) cell reference signal - block synchronization signal (synchronization signal block, SSB) is sent in the period Yes, and multiple SSBs can be sent in a period, but the multiple SSBs are concentrated in a certain time window in the period to form an SSB burst.
  • the SSB period can be 5 ms, 10 ms, 20 ms, 40 ms, 80 ms, or 160 ms, etc.
  • the SSB period of different NR cells can also be different.
  • the SSB burst can be transmitted in the first or second 5ms.
  • the time-domain position of the gap determined by the terminal device according to the timing of the serving cell and the received measurement configuration information may not include the time-domain position of the reference signal of some neighboring cells to be measured, as shown by the dashed box in Figure 1D gap, which will cause the terminal device to fail to receive the reference signals of the neighboring cells to be measured in the gap, and thus fail to complete the measurement of all the cells to be measured, and cause the cell measurement of the terminal device to fail.
  • this application provides a measurement configuration method and equipment.
  • the base station may instruct the terminal device to use a longer gap when subsequently performing cell measurement. In this way, in the subsequent cell measurement process, the probability that the terminal device receives the reference signals of all neighboring cells to be measured in the gap can be increased. Therefore, this method can improve the success rate and efficiency of the terminal device cell measurement.
  • FIG. 2 shows the architecture of a possible communication system to which the measurement configuration method provided by the embodiment of the present application is applicable.
  • the communication system includes: a base station 201 (a base station 201a, a base station 201b, and a base station 201c in the figure), and a terminal device 202.
  • the base station 201 is responsible for providing wireless access-related services for the terminal device 202, realizing wireless physical layer functions, resource scheduling and wireless resource management, quality of service (QoS) management, wireless access control, and mobile The function of sexual management (such as cell reselection and handover).
  • QoS quality of service
  • Each base station 201 is responsible for managing at least one cell. As shown in the figure, base station 201a is responsible for managing cell A, base station 201b is responsible for managing cell B, and base station 201c is responsible for managing cell C and cell D.
  • each cell uses a corresponding carrier frequency to provide access services for terminal equipment.
  • the frequency points used by different cells may be the same or different.
  • this application does not limit the communication technology used by each cell, and the communication technology used by different cells may be the same or different.
  • cell A, cell B, cell C, and cell D are all LTE cells using 4G communication technology; or cell A, cell B, cell C, and cell D are all NR cells using 5G communication technology; or cell A , Cell B, Cell C and Cell D, some of the cells are LTE cells, and some of the cells are NR cells.
  • the terminal device 202 is a device that accesses the network through a cell managed by the base station 201.
  • the base station 201 and the terminal device 202 are connected through a Uu interface, so as to realize the communication between the terminal device 202 and the base station 201.
  • the architecture shown in Figure 2 can be applied to a variety of communication scenarios, for example, the fifth generation (The 5th Generation, 5G) communication system, the future sixth generation communication system and other evolving communication systems, long-term evolution (Long Term Evolution, LTE) communication system, vehicle to everything (V2X), long-term evolution-Internet of Vehicles (LTE-vehicle, LTE-V), vehicle to vehicle (V2V), Internet of Vehicles, machine Communication (Machine Type Communications, MTC), Internet of Things (IoT), Long Term Evolution-Machine to Machine (LTE-Machine to Machine, LTE-M), Machine to Machine (M2M) and other communication scenarios in.
  • long-term evolution Long Term Evolution, LTE
  • V2X vehicle to everything
  • V2X long-term evolution-Internet of Vehicles
  • LTE-vehicle, LTE-V long-term evolution-Internet of Vehicles
  • V2V vehicle to vehicle
  • Internet of Vehicles Internet of Vehicles
  • Machine Communication Machine Type Communications, MTC
  • the measurement configuration method provided in the embodiments of the present application is applicable to various scenarios in the communication system shown in FIG. 2 where inter-frequency/inter-system measurement needs to be performed through gap measurement methods, for example, LTE measurement scenarios in 4G communication technology, and The following scenarios supporting Dual Connectivity (DC) technology in 5G communication technology: EN-DC (EUTRA-NR Dual Connectivity) scenarios, NE-DC (NR-EUTRA Dual Connectivity), NR-DC, and non-DC scenarios .
  • EN-DC EUTRA-NR Dual Connectivity
  • NE-DC NR-EUTRA Dual Connectivity
  • NR-DC NR-DC
  • non-DC scenarios non-DC scenarios.
  • the terminal device 202 accesses the cell A managed by the base station 201a (cell A is a serving cell), and the cell B, the cell C, and the cell D are neighboring cells determined by the base station 201a for the terminal device 202.
  • the base station 201a sends measurement configuration information to the terminal device 202, where the measurement configuration information includes gap configuration parameters and a list of neighboring cells to be measured (including cell B, cell C, and cell D);
  • the terminal device 202 determines the time domain position of the gap according to the measurement configuration information, and performs cell measurement in the gap, and reports the measurement report to the base station 201a after the measurement is completed; the base station 201a switches the terminal device according to the signal quality parameters of each cell in the measurement report To the cell with better signal quality.
  • cell A is the primary cell (primary cell, PCell) of the terminal device 202
  • the base station 201a is the primary base station of the terminal device 202.
  • the base station 201a sends measurement configuration information to the terminal device 202, where the measurement configuration information includes gap configuration parameters and a list of neighboring cells to be measured (including cell B, cell C, and cell D);
  • the terminal device 202 determines the time domain of the gap according to the measurement configuration information Position, and perform cell measurement in the gap, and report a measurement report to the base station 201a after the measurement is completed;
  • the base station 201a configures a secondary cell (SCell) for the terminal device 202 according to the signal quality parameters of each cell in the measurement report, so as to achieve Add a secondary cell group (SCG) to the terminal device 202.
  • SCell secondary cell group
  • an embodiment of the present application provides a measurement configuration method.
  • the method can be applied to various scenarios in the communication system shown in FIG. 2 where inter-frequency/different-system measurement needs to be performed in a gap measurement mode.
  • the base station instructs the terminal device to use a longer gap during subsequent cell measurement through the measurement configuration information, that is, instructs the gap length value to be adjusted from G1 to G2, G2>G1.
  • the probability that the terminal device receives the reference signals of all neighboring cells to be measured in the gap can be increased. Therefore, this method can improve the success rate and efficiency of the terminal device cell measurement.
  • the base station may, after determining that the terminal device cell measurement fails, or determine that the neighboring cells to be measured of the terminal device includes an NR cell, or upon receiving an instruction, or sending the terminal device within a time window The first measurement configuration information.
  • the measurement configuration method provided in the embodiment of the present application will be described below in conjunction with the flowchart shown in FIG. 3. It should be noted that the method flowchart shown in FIG. 3 does not limit the measurement configuration method provided in this application, and the measurement configuration method provided in this application may include more or fewer steps than the method shown in FIG. 3. In addition, the various values involved in the embodiments of the present application are taken on the basis that the unit of measurement parameters such as the length of the gap and the length of the gap period is ms.
  • the base station sends first measurement configuration information to a terminal device, where the first measurement configuration information is used to instruct the terminal device to use a gap length value of G1 when performing cell measurement.
  • the terminal device receives the first measurement configuration information from the base station.
  • the first measurement configuration information may be traditional measurement configuration information, which may include gap configuration parameters (gap period, gap length, and gap start position), and may also include a list of neighboring cells to be measured and a measurement report. Escalation strategy and other information.
  • the first measurement configuration information may be measGapConfig signaling or measConfig signaling.
  • the terminal device determines the location of the gap used for this cell measurement according to the first measurement configuration information, as shown in FIG. 1B, and performs cell measurement in the determined gap.
  • the gap length takes the value G1
  • the gap period takes the value S1
  • the start position of the gap takes the value P1.
  • the terminal device performing cell measurement in the gap includes: the terminal device receives the reference signal of the neighbor cell to be measured in the gap, and determines the measurement result of the neighbor cell to be measured.
  • the time domain positions of the reference signals of all neighboring cells to be measured may not be covered in the gap, for example, as shown in Figure 1D. Therefore, in the gap, the terminal device may only receive a part of the reference signal of the cell to be measured. Signal, or the reference signal of all the cells to be measured is not received, and the cell measurement of the terminal device fails at this time.
  • the terminal device may, but is not limited to, notify the base station in the following manner:
  • the terminal device may not send a measurement report to the base station according to the reporting strategy of the measurement report, or according to an agreement or an agreement with the base station.
  • the terminal device may send a measurement report carrying measurement results of some neighboring cells to be measured to the base station.
  • the terminal device may send a measurement report carrying the measurement results of all neighboring cells to be measured to the base station, and the measurement results of the neighboring cells to be measured that are not measured by the terminal device in the measurement report are invalid.
  • the measurement result of the cell to be measured that is not measured by the terminal device may be empty, zero, or an indicator used to indicate that the measurement result is invalid.
  • the terminal device may send a notification message to the terminal device, and the notification message is used to notify the base station that the terminal device cell measurement fails.
  • the first measurement report contains the measurement results of some neighboring cells to be measured; when the terminal device adopts the above method three, the first measurement report includes all The measurement result of the cell to be measured, and only the measurement result of the adjacent cell to be measured measured by the terminal device is valid.
  • S304 The base station determines that the cell measurement of the terminal device fails.
  • the base station may also determine that the terminal device cell measurement fails in the following manner:
  • Manner 1 The base station does not receive a measurement report from the terminal device within a set time period, and it is determined that the cell measurement of the terminal device fails.
  • Manner 2 The base station receives a first measurement report from the terminal device, and when the base station determines that the first measurement report does not include measurement results of all cells to be measured, it determines that the terminal device cell measurement fails.
  • Manner 3 The base station receives a first measurement report from the terminal device, and when the base station determines that there are invalid measurement results of some cells to be measured in the first measurement report, it determines that the terminal device cell measurement fails.
  • S304a The base station adjusts the gap length used by the terminal device for subsequent cell measurement, and determines the gap length used by the terminal device for subsequent cell measurement as G2, where G2 is greater than G1.
  • the base station may also adjust the starting position of the gap used by the terminal device when performing subsequent cell measurements, and determine the starting position of the gap used by the terminal device when performing subsequent cell measurements. Value P2, where P2 is greater than P1. Since the terminal device failed in the previous cell measurement, and even if the terminal device has received part of the reference signal to be measured in the previous gap position, the terminal device has already measured the part of the measurement reference signal. Therefore, when the base station reconfigures the gap, the position of the gap can be migrated, and the gap position part before adjustment is removed. In this way, the terminal device can avoid occupying the original gap position part for cell measurement, resulting in a decrease in the service throughput of the terminal device. After the terminal device uses the adjusted gap to perform cell measurement, the measurement result of the neighboring cell to be measured this time and the measurement result of the neighboring cell to be measured obtained in the previous cell measurement can be included in the measurement report and reported to all Mentioned base station.
  • the base station may, but is not limited to, determine G2 through the following four implementation manners.
  • the first implementation manner the base station obtains G2, which is greater than the value of G1, from the stored gap length values.
  • the base station determines G2 according to the value T1 of the reference signal transmission period of the neighboring cell to be measured, where T1>G1.
  • m is an integer greater than or equal to zero.
  • the value of m may be 0, 1, 2, and so on.
  • the value of m can be an integer greater than 0.
  • Example 2 Based on the gap length adjustment solution shown in Example 1, the base station can adjust the value of the gap start position from 0 to 5, and the gap length and the comparison before and after the start position adjustment are shown in Fig. 4B.
  • the gap length reconfigured by the base station for the terminal device is adjusted based on the reference signal transmission period of the neighboring cell to be measured. Therefore, the adjusted gap coverage can be improved through this implementation manner.
  • the probability of the reference signal of all neighboring cells to be measured can increase the probability that the terminal device can receive the reference signal of all neighboring cells in the adjusted gap, thereby improving the success rate and efficiency of the cell measurement of the terminal device, as shown in Figure 4A and Shown in 4B.
  • the third implementation manner the base station determines G2 according to the value G1 of the previously configured gap length.
  • k is an integer greater than 2
  • r is an integer greater than or equal to 0.
  • the value of k is 2, 4, 8, 16, 32, and so on.
  • the value of r can be 0, 1, 2, etc.
  • the value of m can be an integer greater than 0.
  • Example 4 On the basis of the gap length adjustment solution shown in Example 3, the base station can adjust the starting position of the gap from 0 to 5. The comparison of the gap length and the starting position before and after adjustment is shown in Figure 4D .
  • the base station may increase the length of the gap on the basis of the original gap length. Since the second embodiment is to determine G2 based on the reference signal transmission period of the neighboring cell, however, when the reference signal transmission period of the neighboring cell is large (for example, T1 is equal to 40, 80, or 160), the second embodiment is used to determine G2 The gap is too long, which further causes a large loss in the service throughput of the terminal device. Obviously, this embodiment can increase the probability that the adjusted gap covers the reference signals of all neighboring cells to be measured, thereby improving the success rate and efficiency of the terminal device cell measurement, as shown in Figures 4C and 4D, and ensuring the terminal device’s Business throughput rate.
  • the base station when the starting position of the gap used by the base station for subsequent cell measurement of the terminal device is adjusted from P1 to P2, the base station may be based on the reference signal transmission period of the neighboring cell The value of T1, and the gap's starting position difference, determine G2, where T1>G1, and the gap's starting position difference is P2-P1.
  • n may be 0, 1, 2, and so on.
  • the value of m can be an integer greater than 0.
  • the base station may adjust the length of the gap on the basis of the reference signal transmission period of the neighboring cell to be measured, and eliminate the length and position of the gap before adjustment from the gap length and the starting position.
  • this embodiment can increase the probability that the adjusted gap covers the reference signals of all neighboring cells to be measured, thereby improving the success rate and efficiency of the terminal device cell measurement, and ensuring the service throughput rate of the terminal device, as shown in Figure 4E Show.
  • G2 determined by the base station may be divisible by 6. Since in the LTE system, the gap length used by the terminal equipment for cell measurement is 6 ms, in the embodiment of the present application, when adjusting the gap length, the gap length is set to a multiple of 6, so that the multiplexing of LTE cell measurement can be realized.
  • the base station may further adjust the gap period used by the terminal device for subsequent cell measurement, that is, adjust the gap period from S1 to S2, where S2>S1.
  • the base station may further adjust the reporting strategy of the measurement report as: periodic trigger, or It is a reporting strategy that preferentially arrives first in period triggering or event triggering.
  • the base station sends second measurement configuration information to the terminal device.
  • the first measurement configuration information is used to instruct the terminal device to adjust the value of the gap length used in cell measurement from G1 to G2, where G2 is greater than G1.
  • the terminal device receives the second measurement configuration information from the base station.
  • the second measurement configuration information may, but is not limited to, instruct the length of the gap to be adjusted from G1 to G2 in the following manner:
  • the second measurement configuration information includes the gap length value G2.
  • the second measurement configuration information includes an adjustment value of the gap length, and the adjustment value is the difference between G2 and G1.
  • the terminal device can determine G2 according to the adjustment value and the gap length G1 before adjustment.
  • the second measurement configuration information includes an adjustment instruction for the gap length, where the adjustment instruction is used to indicate G2 or a calculation method for calculating G2. In this way, after receiving the second measurement configuration information from the base station, the terminal device can determine or calculate G2 according to the adjustment instruction.
  • the base station further determines in S304a that the value of the starting position of the gap is adjusted to P2, correspondingly, the second measurement configuration information is also used to indicate that the value of the starting position of the gap is adjusted from P1 to P2.
  • the second measurement configuration information may also, but not limited to, indicate that the starting position of the gap is adjusted from P1 to P2 in the following manner :
  • the second measurement configuration information includes the starting position of the gap as P2.
  • the second measurement configuration information includes an adjustment value of the starting position of the gap, and the adjustment value is the difference between P2 and P1.
  • the terminal device receives the second measurement configuration information from the base station, it can determine P2 according to the adjustment value and the starting position of the gap before the adjustment takes the value P1.
  • the second measurement configuration information includes an adjustment instruction for the starting position of the gap, where the adjustment instruction is used to indicate P2 or a calculation method for calculating P2. In this way, after receiving the second measurement configuration information from the base station, the terminal device can determine or calculate P2 according to the adjustment instruction.
  • the second measurement configuration information is further used to instruct the value of the gap period to be adjusted from S1 to S2.
  • the second measurement configuration information can also, but is not limited to, instruct the gap period value to be adjusted from S1 to S2 in the following manner:
  • the second measurement configuration information includes the gap period value S2.
  • the second measurement configuration information includes an adjustment value of the gap period, and the adjustment value is the difference between S2 and S1, or the quotient of S2 divided by S1.
  • the terminal device can determine S2 according to the adjustment value and the gap period value S1 before adjustment.
  • the second measurement configuration information includes an adjustment instruction of the gap period, where the adjustment instruction is used to indicate S2 or a calculation method for calculating S2. In this way, after receiving the second measurement configuration information from the base station, the terminal device can determine or calculate S2 according to the adjustment instruction.
  • the second measurement configuration information is also used to indicate that the reporting strategy of the measurement report is periodic triggering, or is preferred in periodic triggering or event triggering. Reporting strategy with first arrival time.
  • the second measurement configuration information may be multiple pieces of information.
  • the second measurement configuration information may include 4 signaling, which are respectively used to indicate the gap length, the gap period, the start position of the gap, and the measurement Reporting of results and adjustment of measurements.
  • the second measurement configuration information may include two signalings, signaling 1 is used to indicate the adjustment of the gap length, gap period, and the start position of the gap, and signaling 2 is used to indicate the adjustment of the measurement result report measurement.
  • the signaling 1 may be measGapConfig signaling
  • the second measurement configuration information carrying the signaling may be MeasConfig signaling.
  • the description of the second measurement configuration information is described as follows:
  • gapOffset is the starting position of the gap
  • mgl is the gap length
  • mgrp is the gap period.
  • a value X is added to the value of mgl, and the specific value of X is P2 in the embodiment of this application.
  • signaling 2 may be ReportConfigInterRAT, and its signaling is described as follows:
  • the terminal device determines the location of the gap used for the next cell measurement according to the second measurement configuration information, and performs cell measurement within the determined gap, where the length of the gap is G2. For the position of the gap determined by the terminal device, reference may be made to the adjusted gap position shown in FIGS. 4A-4E.
  • the terminal device may indicate the gap start position and gap period configured by the base station during the last cell measurement, and the second measurement configuration information indicates The gap length G2 determines the position of the gap.
  • the terminal device can be based on a configuration parameter that was not adjusted during the last cell measurement , And the gap length G2 indicated by the second measurement configuration information and the value of another gap configuration parameter to determine the position of the gap.
  • any other gap configuration parameter for example, the start position of the gap or the gap period
  • the terminal device can be based on the value of each gap configuration parameter indicated by the second measurement configuration information. Take a value to determine the location of the gap.
  • the process of the terminal device performing cell measurement in the gap is the same as that of S302. Therefore, the process of performing cell measurement by the terminal device can refer to the above description of S302, which will not be repeated here.
  • this cell measurement may succeed or fail.
  • the terminal equipment cell measurement succeeds, the terminal equipment sends a second measurement report to the base station through S307; when the terminal equipment cell measurement fails, the terminal equipment can also pass the 4 steps described in S302. Ways to notify the base station that the current cell measurement failed.
  • the terminal device sends a second measurement report to the base station.
  • the base station receives the second measurement report from the terminal device. As shown in the figure, this step is optional.
  • the terminal device reports the second measurement report according to the reporting strategy.
  • S308 The base station determines that the current cell measurement of the terminal device is successful according to the second measurement report.
  • the base station may also determine that the terminal device has failed the current cell measurement in the same manner as in S304.
  • the base station may send third measurement configuration information to the terminal device after S305 or after S308.
  • the base station of the terminal device receives the third measurement configuration information.
  • the third measurement configuration information is used to indicate that the terminal device stops performing cell measurement.
  • the third measurement configuration information may specifically instruct the terminal device to stop performing cell measurement within a set time period; or the terminal device may, after receiving the third measurement configuration information, set time Stop cell measurement within the segment.
  • the third measurement configuration information is used to indicate at least one of the following:
  • the second measurement configuration information sent in S305 indicates that the gap length used by the terminal device to perform cell measurement again is adjusted from G1 to G2, therefore, the terminal device successfully performs cell measurement through S306
  • the service throughput rate of the terminal device may be affected.
  • the service throughput rate of the terminal device after S307 can be guaranteed or improved.
  • the terminal device no longer performs cell measurement.
  • the terminal device again determines the cell measurement to be used for the next cell measurement according to the gap length and/or gap period indicated by the third measurement configuration information. The position of the gap, and the cell measurement is performed within the determined gap.
  • the process of the terminal device performing cell measurement in the determined gap is the same as that of S302. Therefore, the process of performing cell measurement by the terminal device can refer to the above description of S302, which will not be repeated here.
  • the terminal device after the terminal device performs cell measurement, it can also notify the base station of the measurement result of the neighboring cell to be measured by the terminal device.
  • the base station sends various measurement configuration information to the terminal device, and the terminal device sends a measurement report or notification message to the base station, both of which can be implemented through RRC signaling. , This application does not limit this.
  • the embodiment of the present application provides a measurement configuration method.
  • the base station instructs the terminal device to use a longer gap when subsequently performing cell measurement.
  • the probability that the terminal device receives the reference signals of all neighboring cells to be measured in the gap can be increased. Therefore, this method can improve the success rate and efficiency of the terminal device cell measurement.
  • an embodiment of the present application also provides a communication device.
  • the structure of the device is shown in FIG. 5 and includes a communication unit 501 and a processing unit 502.
  • the communication device can be applied to the base station or terminal equipment in the communication system shown in FIG. 2 and can implement the measurement configuration method shown in FIG. 3 above.
  • the function of each unit in the device 500 is introduced below:
  • the function of the communication unit 501 is to receive and send signals.
  • the communication unit 501 may be implemented by a radio frequency circuit, wherein the radio frequency circuit includes an antenna.
  • the function of the processing unit 502 when the communication device 500 is applied to a base station will be introduced below.
  • the processing unit 502 is configured to send first measurement configuration information to the terminal device through the communication unit 501; wherein the first measurement configuration information is used to indicate the value of the gap length used by the terminal device when performing cell measurement Adjust from G1 to G2, where G2 is greater than G1.
  • the first measurement configuration information is also used to indicate that the starting position of the gap is adjusted from P1 to P2, where P2>P1.
  • processing unit 502 is further configured to:
  • processing unit 502 is further configured to:
  • G2 is determined according to the value T1 of the reference signal transmission period of the neighboring cell and the gap start position difference, where T1> G1, the start position difference of the gap is P2-P1.
  • P2-P1 5.
  • G2 can be divisible by 6.
  • the first measurement configuration information is further used to indicate that the reporting strategy of the measurement report is periodic triggering, or a reporting strategy that prefers the arrival time first in periodic triggering or event triggering.
  • the first measurement configuration information is further used to instruct the terminal device to adjust the value of the gap period used in cell measurement from S1 to S2, where S2>S1.
  • processing unit 502 is further configured to:
  • the second measurement configuration information is used to indicate: the terminal device stops performing cell measurement; or the second measurement configuration information is used to indicate at least one of the following:
  • the value of the gap period used by the terminal device for cell measurement is adjusted from S3 to S4, where S4>S3.
  • the function of the processing unit 502 when the communication device 500 is applied to a terminal device will be introduced below.
  • the processing unit 502 is configured to receive the first measurement configuration information sent by the base station through the communication unit 501, where the first measurement configuration information is used to instruct the terminal device to perform cell measurement with a gap length from G1 Adjust to G2, where G2 is greater than G1; and determine the position of the gap according to the first measurement configuration information, and perform cell measurement in the gap, where the length of the gap is G2.
  • each function in each embodiment of the present application can be integrated into one processing unit, or it can exist alone physically, or two or more units can be integrated into one unit.
  • the above-mentioned integrated unit can be implemented in the form of hardware or software functional unit.
  • the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • the technical solution of the present application essentially or the part that contributes to the existing technology or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , Including a number of instructions to enable a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disks or optical disks and other media that can store program codes. .
  • the embodiments of the present application also provide a communication device, which can be applied to the base station or terminal device in the communication system shown in FIG. 2 and can implement the measurement configuration method shown in FIG. 3.
  • the communication network device includes: a transceiver 601, a processor 602, and a memory 603. Wherein, the transceiver 601, the processor 602, and the memory 603 are connected to each other.
  • the transceiver 601, the processor 602, and the memory 603 are connected to each other through a bus 604.
  • the bus 604 may be a peripheral component interconnect standard (PCI) bus or an extended industry standard architecture (EISA) bus, etc.
  • PCI peripheral component interconnect standard
  • EISA extended industry standard architecture
  • the bus can be divided into an address bus, a data bus, a control bus, and so on. For ease of representation, only one thick line is used in FIG. 6, but it does not mean that there is only one bus or one type of bus.
  • the transceiver 601 is used to receive and send signals to realize communication and interaction with other devices.
  • the processor 602 is configured to implement the measurement configuration method in the embodiment shown in FIG. 3.
  • the processor 602 when the communication device 600 is applied to a base station, the processor 602 is specifically configured to:
  • the first measurement configuration information is sent to the terminal device through the transceiver 601; wherein the first measurement configuration information is used to instruct the terminal device to adjust the value of the gap length used in cell measurement from G1 to G2, Among them, G2 is greater than G1.
  • the processor 602 when the communication device 600 is applied to a terminal device, the processor 602 is specifically configured to:
  • the first measurement configuration information sent by the base station is received through the transceiver 601, where the first measurement configuration information is used to instruct the terminal device to adjust the value of the gap length used in cell measurement from G1 to G2, where: G2 is greater than G1; and determining the location of the gap according to the first measurement configuration information, and performing cell measurement in the gap, where the length of the gap is G2.
  • the first measurement configuration information is used to instruct the terminal device to adjust the value of the gap length used in cell measurement from G1 to G2, where: G2 is greater than G1; and determining the location of the gap according to the first measurement configuration information, and performing cell measurement in the gap, where the length of the gap is G2.
  • the memory 603 is used to store program instructions and data.
  • the program instructions may include program code, and the program code includes computer operation instructions.
  • the memory 603 may include random access memory (RAM), and may also include non-volatile memory (non-volatile memory), for example, at least one disk memory.
  • the processor 602 executes the program instructions stored in the memory 603, and uses the data stored in the memory 603 to implement the above-mentioned functions, thereby realizing the measurement configuration method provided in the above-mentioned embodiment.
  • the embodiments of the present application also provide a computer program, which when the computer program runs on a computer, causes the computer to execute the measurement configuration method provided by the embodiment shown in FIG. 3.
  • the embodiments of the present application also provide a computer-readable storage medium in which a computer program is stored.
  • the computer program When the computer program is executed by a computer, the computer executes the implementation shown in FIG. 3 The measurement configuration method provided by the example.
  • an embodiment of the present application also provides a chip, which is used to read a computer program stored in a memory to implement the measurement configuration method provided by the embodiment shown in FIG. 3.
  • the embodiments of the present application provide a chip system including a processor for supporting a computer device to implement functions related to the base station or terminal equipment in the embodiment shown in FIG. 3.
  • the chip system further includes a memory, and the memory is used to store the necessary programs and data of the computer device.
  • the chip system can be composed of chips, or include chips and other discrete devices.
  • this application provides a measurement configuration method and device.
  • the base station instructs the terminal device to use a longer gap when subsequently performing cell measurement.
  • the probability that the terminal device receives the reference signals of all neighboring cells to be measured in the gap can be increased. Therefore, this method can improve the success rate and efficiency of the terminal device cell measurement.
  • this application can be provided as methods, systems, or computer program products. Therefore, this application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, this application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device.
  • the device implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
  • These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment.
  • the instructions provide steps for implementing the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

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Abstract

L'invention concerne un procédé et un dispositif de configuration de mesure qui sont utilisés pour améliorer le taux de réussite et l'efficacité d'une mesure de cellule effectuée par un dispositif de terminal. Dans la solution, après avoir déterminé que la mesure de cellule effectuée par un dispositif de terminal échoue, une station de base ordonne au dispositif de terminal d'utiliser un espace plus grand pour une mesure de cellule ultérieure. De cette manière, au cours de la mesure de cellule ultérieure, la probabilité que le dispositif de terminal reçoive, à l'intérieur de l'espace, des signaux de référence de toutes les cellules voisines à mesurer peut être améliorée, et par conséquent, au moyen du procédé, le taux de réussite et l'efficacité d'une mesure de cellule effectuée par le dispositif de terminal peuvent être améliorés.
PCT/CN2020/125944 2019-11-08 2020-11-02 Dispositif et procédé de configuration de mesure Ceased WO2021088770A1 (fr)

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