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WO2021169378A1 - Procédé et dispositif de configuration de mesure - Google Patents

Procédé et dispositif de configuration de mesure Download PDF

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Publication number
WO2021169378A1
WO2021169378A1 PCT/CN2020/125942 CN2020125942W WO2021169378A1 WO 2021169378 A1 WO2021169378 A1 WO 2021169378A1 CN 2020125942 W CN2020125942 W CN 2020125942W WO 2021169378 A1 WO2021169378 A1 WO 2021169378A1
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WIPO (PCT)
Prior art keywords
terminal device
offset
value
measurement
configuration information
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PCT/CN2020/125942
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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
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • 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
    • H04W36/0058—Transmission of hand-off measurement information, e.g. measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

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 generally needs to use the gap measurement method to perform cell measurement, the specific process Including: 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 the 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 neighboring cell measurement.
  • 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 measurement gap offset Shift (gap offset).
  • the measurement configuration information may also include information such as a measurement report reporting strategy and a list of neighbor 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 the measurement of all the reference signals of the neighboring cells to be measured. Measurement of the cell.
  • This application provides a measurement configuration method and equipment to improve the success rate and efficiency of terminal equipment cell measurement.
  • 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:
  • the base station sends measurement configuration information to the terminal device; wherein the measurement configuration information is used to notify the terminal device to adjust the offset of the gap used in cell measurement.
  • the base station After determining that the cell measurement of the terminal device fails, the base station notifies the terminal device to adjust the gap offset when the cell measurement is subsequently performed without changing other gap configuration parameters. In this way, in the subsequent cell measurement process, the probability that the terminal device receives the reference signal of the neighboring cell to be measured that has not been measured before in the gap can be increased, thereby ensuring that the terminal device can complete the cell after a limited number of measurements. Measurement. Therefore, this method can improve the success rate and efficiency of the terminal device cell measurement.
  • the measurement configuration information includes an offset adjustment instruction, where the offset adjustment instruction is used to instruct the terminal device to perform the offset adjustment according to a preset adjustment rule. Adjustment.
  • This design can reduce the amount of data carried in the measurement configuration information and reduce the resource overhead for transmitting the measurement configuration information.
  • the measurement configuration information includes offset configuration information, where the offset configuration information is used by the terminal device to determine the adjusted value f i of the offset.
  • This design can improve the efficiency of the terminal device in determining the adjusted offset.
  • the offset configuration information includes: an adjustment value ⁇ f, an adjustment value indication for determining the adjustment value ⁇ f, or an adjusted value f i ; where ⁇ f is relative to The default value f 0 of the offset is set, or the ⁇ f is set relative to the offset value f i-1 that the base station configures for the terminal device last time.
  • This design can improve the flexibility of the base station to set the offset configuration information.
  • Period where r is a positive number less than or equal to L, and L is the gap length configured by the base station for the terminal device; or the value of ⁇ f is a value greater than 0 and less than T0, where T0 is the terminal
  • r may be set to 5 ms.
  • the adjustment value, the number of bits in the bitmap sequence is or T0 is the gap period used by the terminal device for cell measurement, T1 is the reference signal transmission period of the neighboring cell to be measured, r is a positive number less than or equal to L, and L is the gap configured by the base station for the terminal device length.
  • the r can be set to 5 ms.
  • This design can improve the flexibility of the base station to set the adjustment value indication.
  • the measurement configuration information is also used to notify that the reporting strategy of the measurement report is periodic triggering, or a reporting strategy that preferably arrives first in the periodic triggering or event triggering.
  • This design can speed up the reporting time of the measurement report of the terminal device, so that the base station can perform cell handover or add SCG for the terminal device as soon as possible.
  • the method before the base station sends the measurement configuration information to the terminal device, the method further includes: the base station determines that the cell measurement of the terminal device fails.
  • 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:
  • the terminal device receives measurement configuration information from the base station, where the measurement configuration information is used to notify the terminal device to adjust the offset of the gap used in cell measurement; the terminal device determines the adjusted offset according to the measurement configuration information For the value f i of the offset, the position of the gap is determined according to the f i , and the cell measurement is performed in the gap.
  • the measurement configuration information includes an offset adjustment instruction, where the offset adjustment instruction is used to instruct the terminal device to perform the offset adjustment according to a preset adjustment rule. Adjustment; the terminal device determines the adjusted value f i of the offset according to the measurement configuration information, including:
  • the terminal device adjusts the offset according to the offset adjustment instruction and according to the preset adjustment rule, and determines the value f i of the adjusted offset.
  • the measurement configuration information includes offset configuration information, where the offset configuration information is used by the terminal device to determine the adjusted value f i of the offset;
  • the terminal device determining the adjusted value f i of the offset according to the measurement configuration information includes:
  • the terminal device determines the adjusted value f i of the offset according to the offset configuration information.
  • the offset configuration information includes: an adjustment value ⁇ f, an adjustment value indication for determining the adjustment value ⁇ f, or an adjusted value f i ; where ⁇ f is relative to The default value f 0 of the offset is set, or the ⁇ f is a value f i-1 relative to the offset last configured for the terminal device by the base station.
  • Period where r is a positive number less than or equal to L, and L is the gap length configured by the base station for the terminal device; or the value of ⁇ f is a value greater than 0 and less than T0, where T0 is the terminal The gap period used when the device performs cell measurement.
  • the adjustment value, the number of bits in the bitmap sequence is or T0 is the gap period used by the terminal device for cell measurement, T1 is the reference signal transmission period of the neighboring cell to be measured, r is a positive number less than or equal to L, and L is the gap configured by the base station for the terminal device length.
  • the measurement configuration information is also used to notify 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; After performing cell measurement in the gap, the method further includes:
  • the terminal device sends a measurement report to the base station according to the reporting strategy indicated by the measurement configuration information, where the measurement report includes the measurement result generated by the terminal device.
  • 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 read and execute The program and data stored by the storage element enable the method provided in any of the above aspects of the present application to be implemented.
  • 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 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.
  • Figure 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 this 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 this 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.
  • 4A is a schematic diagram of an example of a first method for adjusting gap offset provided by an embodiment of this application.
  • 4B is a schematic diagram of an example of a second method for adjusting gap offset provided by an embodiment of the application.
  • 4C is a schematic diagram of an example of a third method for adjusting gap offset provided by an embodiment 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.
  • the present application provides a measurement configuration method and equipment to improve the efficiency of cell measurement of terminal equipment.
  • the method and the device are based on the same technical idea. 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 in accordance with 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 neighbor cell to be measured (the measurement result of the at least one neighbor cell to be measured)
  • the measurement result is the actual measurement value), or includes the measurement results of all measured neighboring cells (wherein, the measurement results of the neighboring cells to be measured for which the terminal device does not receive the reference signal are empty or zero.
  • 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.
  • intra-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 a radio frequency channel, 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 ie MGRP
  • MNL maximum value of the gap length
  • GNL maximum value of the gap length
  • 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.
  • the terminal device is in The reference signal of neighboring cell a can be received in gap1, but the reference signal of neighboring cell b can not be received; the terminal device cannot receive the reference signals of neighboring cell a and neighboring cell b in gap2. Obviously, this will cause the terminal device to be unable to receive the reference signals of all neighboring cells to be measured in the gap at a fixed location, and thus cannot complete the measurement of all the cells to be measured, which will cause the cell measurement of the terminal device to fail.
  • this application provides a measurement configuration method and equipment.
  • the base station can instruct the terminal device to adjust the gap offset (that is, the position of the gap) during subsequent cell measurement.
  • the gap offset that is, the position of the gap
  • the probability that the terminal device receives the reference signal of the neighboring cell to be measured that has not been measured before 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 in the embodiment of the present application is applicable.
  • the communication system includes: a base station 201 (base station 201a, base station 201b, and base station 201c in the figure), and terminal equipment 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 middle.
  • 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 , SA scene and NSA scene in 5G communication technology.
  • EN-DC EUTRA-NR Dual Connectivity
  • NE-DC NR-EUTRA Dual Connectivity
  • NR-DC NR-DC
  • non-DC scenarios SA scene and NSA scene in 5G communication technology.
  • 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 adjust the gap offset (that is, the position of the gap) when the cell measurement is subsequently performed through the measurement configuration information.
  • the gap offset that is, the position of the gap
  • the probability that the terminal device receives the reference signal of the neighboring cell to be measured that has not been measured before 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 send the measurement configuration information after determining that the terminal device cell measurement fails, or upon receiving an instruction, or within a time window.
  • the measurement configuration method provided by 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.
  • the base station sends first measurement configuration information to the terminal device, where the first measurement configuration information is used to configure the offset of the gap used by the terminal device to perform cell measurement as f 0 .
  • 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 offset), 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 measurement gap configuration (measGapConfig) signaling or measurement configuration (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 is L
  • the gap period is T0
  • the gap offset is f 0 .
  • 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 report 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, where 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 uses the third method, the first measurement report includes all The measurement result of the cell to be measured, and only the measurement result of the neighboring 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 the 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 determines to adjust the offset of the gap used when performing subsequent cell measurements on the terminal device.
  • the base station may notify the terminal device through various implementation manners to implement the configuration of the offset.
  • the base station may adjust the position of the gap in the gap period by increasing the offset of the gap to cover the time domain position of the reference signal of the neighboring cell to be measured that has not been measured before.
  • the first implementation manner when the preset adjustment rule for the offset is determined through negotiation between the base station and the terminal device, or the agreement specifies the preset adjustment rule for the offset, the base station may report to the The terminal device sends an offset adjustment instruction, so that the terminal device adjusts the offset according to the offset adjustment instruction and according to the preset adjustment rule.
  • the offset adjustment instruction is used to instruct the terminal device to adjust the offset according to a preset adjustment rule.
  • the base station can directly determine the offset configuration information and send it to the terminal device.
  • the terminal device can directly determine the offset configuration information based on the offset configuration information. Take the value f 1 .
  • the offset configuration information is used by the terminal device to determine the value f 1 of the offset adjusted this time.
  • the offset configuration information may include any one of the following: an adjustment value ⁇ f, an adjustment value indication for determining the adjustment value ⁇ f, or an adjusted value f 1 .
  • the ⁇ f may be set by the default value f 0 relative to the offset (the value of the offset configured by the base station for the terminal device for the first time).
  • the value of ⁇ f is a value greater than 0 and less than T0, where T0 is the gap period used when the terminal device performs cell measurement.
  • T0 is the gap period used when the terminal device performs cell measurement.
  • the gap offset can be determined according to the gap length L to determine the adjustment step r, and the value of r is less than Or equal to L.
  • the preset adjustment rule in the foregoing first implementation manner may be determined according to the adjustment step r.
  • the base station may also determine the offset configuration information in the second implementation manner according to the adjustment step r, which will be described below with several examples.
  • the offset configuration information contains the adjustment value ⁇ f.
  • n may be i.
  • the n when the ⁇ f is set relative to the offset value f i-1 configured for the terminal device by the base station last time, the n may be 1.
  • ⁇ f when the ⁇ f is set relative to the default value f 0 of the offset (the value of the offset configured by the base station for the terminal device for the first time), and when i is less than or equal to N ,
  • the value of n may be i.
  • the adjustment value indication may be a bitmap sequence.
  • the bitmap sequence indicates different adjustment values based on different values, and the number of bits of the bitmap sequence is or T0 is the gap period used when the terminal device performs cell measurement, and T1 is the reference signal transmission period of the neighboring cell to be measured.
  • the bitmap sequence may adopt a one-hot code encoding method. In this way, the terminal device can determine the adjustment value corresponding to the bitmap sequence according to the received bitmap sequence, and then determine the adjusted offset.
  • the base station may also use the saved history records of the system frame number and frame timing difference (SFN and frame timing difference, SFTD) between the serving cell of the terminal device and the neighboring cell to be measured, To determine the value of the above offset configuration information.
  • SFN and frame timing difference SFN and frame timing difference, SFTD
  • the base station may select a history record of SFTD between the serving cell and the neighboring cell to be measured with the strongest signal.
  • the process for the base station to adjust the gap offset according to the SFTD can be the same as the traditional method, and will not be repeated this time.
  • the base station may further adjust the reporting strategy of the measurement report as: periodic triggering, or It is a reporting strategy that prefers the arrival time first in periodic triggering or event triggering.
  • the base station sends second measurement configuration information to the terminal device.
  • the second measurement configuration information includes an offset adjustment instruction or offset configuration information.
  • the terminal device After receiving the second measurement configuration information from the base station, the terminal device can determine that the gap length and the gap period remain unchanged, and adjust the gap offset.
  • 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, but is not limited to, include: signaling 1 that includes the offset of the configuration gap, and information that includes the configuration measurement report. Signaling of reporting strategy 2.
  • the signaling 1 may include an indication to maintain the gap length and the gap period unchanged, or include the gap length L and the gap period T0 configured for the base station last time.
  • the terminal device determines the adjusted value f 1 of the offset according to the second measurement configuration information, according to the f 1 , and the gap length L and the gap length L configured for it last time by the base station In the gap period T0, the position of the gap is determined, and cell measurement is performed in the gap.
  • the terminal device determines the adjusted value f 1 of the offset in different implementation manners.
  • the terminal device determines the adjusted value f 1 of the offset in different implementation manners.
  • the process of the terminal device performing cell measurement in the gap is the same as 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 device sends a second measurement report to the base station through S307; when the terminal device cell measurement fails, the terminal device can also pass the 4 steps described in S302. Ways to notify the base station that the current cell measurement has 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. It should be noted that, in the second measurement report sent by the terminal device to the base station, the measurement result of the valid cell to be measured that has been measured before and saved by the terminal device may be carried; or the terminal device may determine to pass multiple measurements. In the secondary cell measurement, after obtaining the measurement results of all the cells to be measured, the measurement results of all the cells to be measured are reported to the base station through the second measurement report.
  • the base station determines the success or failure of the current cell measurement of the terminal device according to the second measurement report (or in combination with the first measurement report).
  • the second measurement report (and the first measurement report) does not contain the measurement results of all the cells to be measured)
  • the base station continues to the next time Adjust the gap offset process.
  • the method for the base station to adjust the gap offset next time is the same as that of S304a-S305. For the specific process, please refer to the description in the corresponding step, which will not be repeated here.
  • the ⁇ f adjusted this time has a certain increase over the ⁇ f adjusted this time in S304a, for example, an increase of 5ms .
  • the terminal device may perform cell handover or add SCG according to the measurement results of all the cells to be measured.
  • 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 base station uses 5ms as the adjustment step r to adjust the gap offset when the terminal device fails each time the cell measurement, because the reference signal of the neighboring cell to be measured is also based on T1 as the period Therefore, the terminal device can measure the cell at most times of T1/5ms, that is, the time period of at most T1*(T1/5ms), the base station can measure all the cells to be measured, thereby completing the cell measurement, Avoid performance loss due to continuous measurement failures.
  • the embodiment of the present application provides a measurement configuration method.
  • the base station after determining that the cell measurement of the terminal device fails, the base station notifies the terminal device to adjust the gap offset when performing cell measurement subsequently without changing other gap configuration parameters.
  • the probability that the terminal device receives the reference signal of the neighboring cell to be measured that has not been measured before in the gap can be increased, so as to ensure that the terminal device undergoes T1/r measurements at most. Cell measurement. Therefore, this method can improve the success rate and efficiency of the terminal device cell measurement.
  • this application also provides an example of a method for adjusting the gap offset.
  • the offset of the gap is adjusted according to the set adjustment step r each time.
  • the adjustment step length r gap length-1ms.
  • the base station and the terminal equipment can agree on a set of adjustment values Among them, T1 is the reference signal transmission period of the neighboring cell to be measured.
  • the base station determines that the cell measurement of the terminal device fails, it increases the gap offset according to the adjustment step. Or every time the base station determines that the cell measurement of the terminal device fails, the base station adds an adjustment value based on the default gap offset configured for the terminal device for the first time, where the adjustment value is The number of adjustments according to the offset is determined in the set of adjustment values. For example, during the first adjustment, the base station or the terminal device determines that the adjustment value is 5 ms; during the second adjustment, the base station or the terminal device determines that the adjustment value is 10 ms, and so on.
  • the terminal device when the terminal device performs cell measurement for the first time, it can only receive the SSB sent by the neighboring cell 1 to be measured in the gap position where the gap offset value is 0. Therefore, the terminal device can only obtain Obviously, the measurement result of the neighboring cell 1 to be measured has failed in the cell measurement of the terminal device.
  • the base station may notify the terminal device to adjust the gap offset through measurement configuration information.
  • the terminal device determines that the adjusted gap offset is 5ms, and then the terminal device can receive the SSB sent by the neighboring cell 1 to be measured at a position where the gap offset is 5ms. Therefore, the terminal device can The measurement result of the neighboring cell 2 to be measured is obtained.
  • the base station may continue to notify the terminal device to continue adjusting the gap offset through the measurement configuration information; in this way, the terminal device may have a gap offset of 10 ms.
  • the measurement result of the neighboring cell 3 to be measured is measured at the position of, and the measurement result of the neighboring cell 4 to be measured is measured at the position where the gap offset is 15 ms.
  • the terminal device can pass cell measurements up to 4 times, and finally achieve a successful cell measurement.
  • the base station can also obtain more measurement results of the frequency points to be measured within the duration of T1*4, avoiding the performance loss caused by the continuous cell measurement failure of the terminal equipment.
  • the base station can use the steps and specific implementations shown in S304a and S305 in the embodiment shown in FIG. 3 to notify the terminal device to adjust the gap offset. Go into details again.
  • this application also provides an example of a method for adjusting the gap offset.
  • the offset of the gap is adjusted according to the set adjustment step r each time.
  • the adjustment step length r gap length-1ms.
  • the base station and the terminal equipment can agree to divide the gap period T0 into Intervals.
  • the starting position of each interval is used as the gap adjustment value. Therefore, the base station and the terminal equipment may agree to include A bitmap sequence of bits represents the gap offset corresponding to each interval.
  • the base station can use an 8-bit bitmap sequence as an indication of the offset adjustment value.
  • the adjustment value of the gap offset corresponding to the bitmap sequence "10000000” is 0ms
  • the adjustment value of the gap offset corresponding to the bitmap sequence "01000000” is 5ms
  • the gap offset corresponding to the bitmap sequence "00010000” The adjustment value is 15ms.
  • the base station may determine an interval in sequence after determining the offset for adjusting the gap, and then send the bitmap sequence corresponding to the interval to the terminal device.
  • the terminal device determines the adjustment value according to the received bitmap sequence.
  • the base station and the terminal equipment may agree to divide the reference signal transmission period T1 of the neighboring cell to be measured according to the adjustment step size into Intervals.
  • the starting position of each interval is used as the gap adjustment value. Therefore, the base station and the terminal equipment may agree to include A bitmap sequence of bits represents the gap offset corresponding to each interval. As shown in the figure, assuming that T1 is 20 ms, the base station can use a 4-bit bitmap sequence as an indication of the offset adjustment value.
  • the adjustment value of the gap offset corresponding to the bitmap sequence "1000" is 0ms
  • the adjustment value of the gap offset corresponding to the bitmap sequence "0100” is 5ms
  • the gap offset corresponding to the bitmap sequence "0001” The adjustment value is 15ms.
  • bitmap sequence adopts the one-hot code encoding method, but this example does not constitute a limitation on the encoding method of the bitmap sequence.
  • bitmap sequence can also be implemented by other encoding methods, which is not limited in this application.
  • 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 measurement configuration information to the terminal device through the communication unit 501; wherein the measurement configuration information is used to notify the terminal device to adjust the offset of the gap used in cell measurement.
  • the measurement configuration information includes an offset adjustment instruction, wherein the offset adjustment instruction is used to instruct the terminal device to adjust the offset according to a preset adjustment rule .
  • the measurement configuration information includes offset configuration information, wherein the offset configuration information is used by the terminal device to determine the adjusted value f i of the offset.
  • the offset configuration information includes: an adjustment value ⁇ f, an adjustment value indication for determining the adjustment value ⁇ f, or an adjusted value f i ; wherein, ⁇ f is relative to all The default value f 0 of the offset is set, or the ⁇ f is set relative to the offset value f i-1 that the base station configures for the terminal device last time.
  • the measurement configuration information is also used to notify that the reporting strategy of the measurement report is a periodic trigger, or a reporting strategy that prefers to arrive first in a periodic trigger or an event trigger.
  • processing unit 502 is further configured to:
  • 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 measurement configuration information from the base station through the communication unit, where the measurement configuration information is used to notify the terminal device to adjust the offset of the gap used in cell measurement; according to the measurement configuration Information, determine the adjusted value f i of the offset, determine the position of the gap according to the f i , and perform cell measurement in the gap.
  • the measurement configuration information includes an offset adjustment instruction, wherein the offset adjustment instruction is used to instruct the terminal device to adjust the offset according to a preset adjustment rule ;
  • the processing unit 502 when determining the adjusted value f i of the offset according to the measurement configuration information, is specifically configured to:
  • the offset is adjusted according to the preset adjustment rule, and the adjusted value f i of the offset is determined.
  • the measurement configuration information includes offset configuration information, wherein the offset configuration information is used by the terminal device to determine the adjusted value f i of the offset;
  • the processing unit 502 when determining the adjusted value f i of the offset according to the measurement configuration information, is specifically configured to:
  • the offset configuration information includes: an adjustment value ⁇ f, an adjustment value indication for determining the adjustment value ⁇ f, or an adjusted value f i ; wherein, ⁇ f is relative to all The default value f 0 of the offset is set, or the ⁇ f is a value f i-1 relative to the offset configured by the base station for the terminal device last time.
  • the measurement configuration information is also used to notify 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 processing unit 502 further Used to: after performing cell measurement in the gap, according to the reporting strategy indicated by the measurement configuration information, send a measurement report to the base station through the communication unit 501, where the measurement report includes the terminal equipment Generated measurement results.
  • 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 several instructions to make a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) 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 disk or optical disk and other media that can store program code .
  • 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: send measurement configuration information to a terminal device through the transceiver 601; wherein, the measurement configuration information is used for Notifying the terminal device to adjust the gap offset used in cell measurement.
  • the measurement configuration information is used for Notifying the terminal device to adjust the gap offset used in cell measurement.
  • the processor 602 when the communication device 600 is applied to a terminal device, the processor 602 is specifically configured to: receive measurement configuration information from a base station through the transceiver 601, where the measurement configuration information is used Notifying the terminal device to adjust the offset of the gap used in cell measurement; determining the adjusted value f i of the offset according to the measurement configuration information, and determining the position of the gap according to the f i , And perform cell measurement in the gap.
  • the measurement configuration information is used Notifying the terminal device to adjust the offset of the gap used in cell measurement
  • determining the adjusted value f i of the offset according to the measurement configuration information determining the position of the gap according to the f i , And perform cell measurement in the gap.
  • 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 a random access memory (RAM), and may also include a non-volatile memory (non-volatile memory), such as 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, which is used to support 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 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 after determining that the cell measurement of the terminal device fails, the base station notifies the terminal device to adjust the gap offset when performing cell measurement subsequently without changing other gap configuration parameters.
  • the probability that the terminal device receives the reference signal of the neighboring cell to be measured that has not been measured before in the gap can be increased, thereby ensuring that the terminal device can complete the cell after a limited number of measurements. Measurement. 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

Un procédé et un dispositif de configuration de mesure sont divulgués dans la présente demande, qui sont destinés à améliorer le taux de réussite et l'efficacité d'une mesure de cellule par un dispositif terminal. Dans la solution, après la détermination selon laquelle la mesure de cellule réalisée par un dispositif terminal a échoué, une station de base notifie au dispositif terminal d'ajuster un décalage d'intervalle lors de la réalisation de la mesure de cellule ultérieurement. Par conséquent, dans le processus de mesure de cellule ultérieur, la probabilité que le dispositif terminal reçoive dans l'intervalle un signal de référence d'une cellule voisine à mesurer qui n'a pas été précédemment mesurée peut être augmentée, ce qui permet d'assurer que le dispositif terminal peut passer par un nombre limité de mesures, de façon à achever la mesure de cellule. Par conséquent, le procédé peut améliorer le taux de réussite et l'efficacité de mesure de cellule par un dispositif terminal.
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