A measurement configuration method and device
After the terminal device cell measurement fails, the base station notifies the terminal device to adjust the offset of the gap, which solves the problem that the terminal device cannot receive all reference signals of the neighbor cell to be measured, and improves the success rate and efficiency of the cell measurement.
Patent Information
- Application Number
- CN202010117705.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-02-25
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2040-02-25
AI Technical Summary
When performing cell measurements, the terminal device may not be able to receive reference signals from all neighboring cells to be measured, resulting in measurement failure, affecting service continuity and communication quality.
After the terminal device cell measurement fails, the base station notifies the terminal device to adjust the offset of the gap to increase the probability of receiving the reference signal of the neighboring cell to be measured during subsequent cell measurements.
By adjusting the offset of the gap, the terminal device can improve the success rate and efficiency of cell measurements, ensuring that measurements of all cells to be measured can be completed in a limited number of measurements.
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Figure CN113382435B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of communication technologies, and in particular, to a measurement configuration method and device. Background Art
[0002] In a communication system, in order to ensure the service continuity and communication quality of a terminal device, the terminal device usually needs to perform cell measurements to implement cell reselection and cell handover. The types of cell measurements include intra-frequency measurement, inter-frequency / inter-system measurement.
[0003] When the terminal device performs inter-frequency / inter-system measurement during initial access or in the radio resource control (RRC)_connective state, the terminal device generally needs to use the measurement method of gap measurement for cell measurement. The specific process includes: within 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 to the base station that manages the serving cell. Then the base station switches the terminal device to a cell with better signal quality according to the measurement report.
[0004] Currently, before the terminal device performs cell measurement, it needs to be configured for measurement by the base station of the serving cell, and the measurement configuration information is sent to the terminal device. The terminal device can determine the position of each gap according to the received measurement configuration information to perform measurement on neighboring cells. Usually, the gap length is 6 milliseconds (ms). Among them, the measurement configuration information includes: measurement gap repetition period (MGRP) (also known as gap period), measurement gap length (MGL) (abbreviated as gap length), and the offset of the measurement gap (gap offset). Optionally, the measurement configuration information may further include information such as the reporting strategy of the measurement report and the list of neighboring cells to be measured.
[0005] In order to improve the cell measurement efficiency, the terminal device should be able to receive the reference signals of all neighboring cells to be measured within the gap. However, the 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 sent by each neighboring cell 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 include the time domain position of the reference signals of some neighboring cells to be measured, resulting in the terminal device being unable to receive the reference signals of these neighboring cells to be measured, and thus unable to complete the measurement of all cells to be measured. Summary of the Invention
[0006] The present application provides a measurement configuration method and device to improve the success rate and efficiency of cell measurement of a terminal device.
[0007] In a first aspect, an embodiment of the present application provides a measurement configuration method, which can be applied to Figure 2 various scenarios in the communication system shown that require inter-frequency / inter-system measurement through the gap measurement method. The method includes:
[0008] 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 for cell measurement.
[0009] Through this method, after determining that the cell measurement of the terminal device fails, the base station notifies the terminal device to adjust the offset of the gap during subsequent cell measurement without changing other gap configuration parameters. In this way, during subsequent cell measurement, the probability that the terminal device receives the reference signal of the to-be-measured neighboring cell that was not measured before within the gap can be increased, so as to ensure that the terminal device can complete the cell measurement after a limited number of measurements. Therefore, this method can improve the success rate and efficiency of the cell measurement of the terminal device.
[0010] In a possible design, the measurement configuration information includes an offset adjustment indication, wherein the offset adjustment indication is used to instruct the terminal device to adjust the offset according to a preset adjustment rule.
[0011] 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.
[0012] In a possible design, the measurement configuration information includes offset configuration information, wherein the offset configuration information is used for the terminal device to determine the value f of the adjusted offset i .
[0013] This design can improve the efficiency of the terminal device to determine the adjusted offset.
[0014] In a possible design, the offset configuration information includes: an adjustment value Δf, an adjustment value indication for determining the adjustment value Δf, or the adjusted value f i ; wherein, the Δf is set relative to the default value f0 of the offset, or the Δf is set relative to the offset value f i-1 configured by the base station for the terminal device last time.
[0015] This design can improve the flexibility of the base station in setting the offset configuration information.
[0016] In a possible design, the value of Δf is n*r, where n is a positive integer less than or equal to N, N = T1 / r, 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 length configured by the base station for the terminal device; or the value of Δf is a value greater than 0 and less than T0, where T0 is the gap period used by the terminal device for cell measurement. Exemplarily, when L is 6 ms specified by the LTE communication technology, r can be set to 5 ms.
[0017] In a possible design, the adjustment value indication is n, where n is a positive integer less than or equal to N, N = T1 / r, 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 length configured by the base station for the terminal device; or the adjustment value indication is a bitmap sequence, where 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 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 length configured by the base station for the terminal device. Exemplarily, in the same design as above, r can be set to 5 ms.
[0018] This design can improve the flexibility of the base station in setting the adjustment value indication.
[0019] In a possible design, the measurement configuration information is further used to notify that the reporting policy of the measurement report is periodic trigger, or is the reporting policy that preferentially selects the one with the earlier arrival time in periodic trigger or event trigger. 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.
[0020] In a possible design, 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.
[0021] In a second aspect, an embodiment of the present application provides a measurement configuration method, which can be applied to Figure 2 various scenarios that require inter-frequency / inter-system measurement through the gap measurement method in the shown communication system. The method includes:
[0022] 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 for cell measurement; the terminal device determines the value f of the adjusted offset according to the measurement configuration information. i According to the f i the position of the gap is determined, and cell measurement is performed within the gap.
[0023] In a possible design, the measurement configuration information includes an offset adjustment indication, where the offset adjustment indication is used to instruct the terminal device to adjust the offset according to a preset adjustment rule; the terminal device determines the value f of the adjusted offset according to the measurement configuration information. i including:
[0024] The terminal device adjusts the offset according to the offset adjustment indication according to the preset adjustment rule to determine the value f of the adjusted offset. i .
[0025] In a possible design, the measurement configuration information includes offset configuration information, where the offset configuration information is used for the terminal device to determine the value f of the adjusted offset. i The terminal device determines the value f of the adjusted offset according to the measurement configuration information. i including:
[0026] The terminal device determines the value f of the adjusted offset according to the offset configuration information. i .
[0027] In a possible design, the offset configuration information includes: an adjustment value Δf, an adjustment value indication for determining the adjustment value Δf, or the adjusted value f. i where the Δf is set relative to the default value f0 of the offset, or the Δf is relative to the offset value f i-1 configured by the base station for the terminal device last time.
[0028] In a possible design, the value of the Δf is n*r, where the value of n is a positive integer less than or equal to N, N = T1 / r, 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 length configured by the base station for the terminal device; or the value of the Δf is a value greater than 0 and less than T0, where T0 is the gap period used by the terminal device for cell measurement.
[0029] In a possible design, the adjustment value is indicated as n, where the value of n is a positive integer less than or equal to N, N = T1 / r, 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 length configured by the base station for the terminal device; or the adjustment value is indicated as a bitmap sequence, where different adjustment values are indicated based on different values, and the number of bits of 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 length configured by the base station for the terminal device.
[0030] In a possible design, the measurement configuration information is further used to notify that the reporting policy of the measurement report is periodic triggering, or a reporting policy that prefers the arrival time first in periodic triggering or event triggering; after the terminal device performs cell measurement within the gap, the method further includes:
[0031] The terminal device sends a measurement report to the base station according to the reporting policy indicated by the measurement configuration information, where the measurement report includes the measurement results generated by the terminal device.
[0032] In a third aspect, an embodiment of the present application provides a communication device, including units for performing each step in any of the above aspects.
[0033] In a fourth aspect, an embodiment of the present application provides a communication device, including at least one processing element and at least one storage element, where 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 programs and data stored in the storage element, so that the methods provided in any of the above aspects of the present application are implemented.
[0034] In a fifth aspect, an embodiment of the present application provides a communication system, including a base station and a terminal device, where the base station has the function of performing the method provided in the first aspect of the present application, and the terminal device has the function of performing the method provided in the second aspect of the present application.
[0035] In a sixth aspect, an embodiment of the present application further provides a computer program, which, when running on a computer, causes the computer to execute the method provided in any of the above aspects.
[0036] In a seventh aspect, an embodiment of the present application further provides a computer-readable storage medium, in which a computer program is stored, and when the computer program is executed by a computer, it causes the computer to execute the method provided in any of the above aspects.
[0037] In an eighth aspect, an embodiment of the present application further provides a chip, which is used to read a computer program stored in a memory and execute the method provided in any of the above aspects.
[0038] In a ninth aspect, an embodiment of the present application further provides a chip system, which includes a processor for supporting a computer device to implement the method provided in any of the above aspects. In a possible design, the chip system further includes a memory for storing necessary programs and data of the computer device. The chip system may be composed of chips or may include chips and other discrete devices. Description of the Drawings
[0039] Figure 1A Schematic diagram of gap measurement in the prior art;
[0040] Figure 1B Schematic diagram of the gap position provided by an embodiment of the present application;
[0041] Figure 1C Schematic diagram of the time-domain position of the reference signal of the NR cell provided by an embodiment of the present application;
[0042] Figure 1D Schematic diagram of the time-domain position of the gap and the reference signal of the NR cell provided by an embodiment of the present application;
[0043] Figure 2 Architecture diagram of a communication system provided by an embodiment of the present application;
[0044] Figure 3 Flowchart of a measurement configuration method provided by an embodiment of the present application;
[0045] Figure 4A Schematic diagram of the first example of the method for adjusting the gap offset provided by an embodiment of the present application;
[0046] Figure 4B Schematic diagram of the second example of the method for adjusting the gap offset provided by an embodiment of the present application;
[0047] Figure 4C Schematic diagram of the third example of the method for adjusting the gap offset provided by an embodiment of the present application;
[0048] Figure 5 Structure diagram of a communication device provided by an embodiment of the present application;
[0049] Figure 6 Structure diagram of a communication device provided by an embodiment of the present application. Detailed Embodiments
[0050] The present application provides a measurement configuration method and device to improve the efficiency of cell measurement of a terminal device. Among them, the method and the device are based on the same technical concept. Since the principles for the method and the device to solve problems are similar, the implementation of the device and the method can be referred to each other, and the repeated parts will not be elaborated again.
[0051] Hereinafter, some terms in the present application will be explained to facilitate the understanding of those skilled in the art.
[0052] 1) A terminal device is a device that provides voice and / or data connectivity to a user. A terminal device can also be referred to as a user equipment (UE), a mobile station (MS), a mobile terminal (MT), etc.
[0053] For example, a terminal device can be a handheld device, a vehicle-mounted device, etc. with wireless connection capabilities. Currently, some examples of terminal devices are: mobile phone, tablet computer, laptop computer, palmtop computer, mobile internet device (MID), wearable device, virtual reality (VR) device, augmented reality (AR) device, wireless terminal in industrial control, wireless terminal in self-driving, wireless terminal in remote medical surgery, wireless terminal in smart grid, wireless terminal in transportation safety, wireless terminal in smart city, wireless terminal in smart home, etc.
[0054] 2) A base station is a device that connects a terminal device to a wireless network in a communication system. The base station, as a node in the radio access network, can also be referred to as a network device, and can also be referred to as a radio access network (RAN) node (or device).
[0055] Currently, some examples of base stations are: gNB, evolved Node B (eNB), transmission reception point (TRP), radio network controller (RNC), Node B (NB), base station controller (BSC), base transceiver station (BTS), home base station (e.g., home evolved Node B, or home Node B, HNB), or base band unit (BBU), etc.
[0056] In addition, in a network structure, the base station may include a centralized unit (CU) node and a distributed unit (DU) node. This structure splits the protocol layers of the eNB in the long term evolution (LTE) system. The functions of some protocol layers are centrally controlled by the CU, and the functions of the remaining part or all protocol layers are distributed in the DU, and the DU is centrally controlled by the CU.
[0057] 3) Measurement configuration information is sent by the base station to the terminal device and is used to enable the terminal device to perform cell measurements according to the measurement configuration information. Usually, the base station can send the measurement configuration information through RRC signaling. Among them, the measurement configuration information may but is not limited to include at least one of the following measurement parameters: measurement object, list of neighboring cells to be measured, or gap configuration parameters (gap period, gap length, starting position of the gap).
[0058] In the embodiments of the present application, after the base station sends the measurement configuration information to the terminal device once, the base station can also send the measurement configuration information again to indicate that the base station adjusts the value of at least one of the above measurement parameters. In this way, the base station can flexibly reconfigure the measurement parameters.
[0059] Among them, the base station indicates that the base station adjusts the value of any measurement parameter through the measurement configuration information, which may but is not limited to include the following forms:
[0060] The adjusted value of the measurement parameter is included in the measurement configuration information.
[0061] The adjustment value of the measurement parameter is included in the measurement configuration information, and the adjustment value may be the difference between the adjusted value and the value before adjustment of the measurement parameter.
[0062] The measurement configuration information includes an indication for adjusting measurement parameters. The terminal device may, according to the indication for adjusting the measurement parameters, determine the value of the adjusted measurement parameter in a manner agreed with the base station.
[0063] 4) A measurement report, which is obtained by the terminal device after performing cell measurements and reported to the base station.
[0064] When the terminal device receives reference signals of at least one neighbor cell to be measured within the gap, the measurement report may include the measurement results of the terminal device for the at least one neighbor cell to be measured (the measurement results of the at least one neighbor cell to be measured are actual measured values), or include the measurement results of all measured neighbor cells (wherein, the measurement results of the neighbor cells to be measured for which the terminal device does not receive reference signals are empty or zero).
[0065] When the terminal device does not receive reference signals of neighbor cells to be measured within the gap, the terminal device may not report the measurement report, or the reported measurement report is empty, or the measurement results of each neighbor cell to be measured in the reported measurement report are empty or zero.
[0066] Exemplarily, the measurement result of each neighbor cell to be measured may be a signal quality parameter of the neighbor cell to be measured. Optionally, the signal quality parameter may include one or more of the following parameters:
[0067] Reference Signal Received Power (RSRP), Signal to Interference plus Noise Ratio (SINR), Received Signal Strength Indication (RSSI), Reference Signal Received Quality (RSRQ).
[0068] 5) “And / or” describes the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. The character “ / ” generally represents an “or” relationship between the front and back associated objects.
[0069] It should be noted that the “multiple” involved in this application refers to two or more.
[0070] In addition, it should be understood that in the description of this application, terms such as “first” and “second” are only used for the purpose of distinguishing descriptions, and cannot be understood as indicating or implying relative importance, nor can they be understood as indicating or implying an order.
[0071] First, the traditional gap measurement method will be described below.
[0072] The types of cell measurements include: co-frequency measurement, inter-frequency / inter-system measurement. Among them, co-frequency measurement means that the neighboring cell to be measured and the serving cell of the terminal device are in the same carrier frequency point. Inter-frequency / system measurement means that the neighboring cell to be measured and the serving cell of the terminal device are not in the same carrier frequency point.
[0073] Generally, the terminal device realizes signal reception and transmission through the radio frequency path, and a set of radio frequency paths generally operates on one carrier frequency point.
[0074] During the initial access or RRC connection state of the terminal device, when there are multiple sets of radio frequency paths set inside the terminal device, the terminal device can use one of the radio frequency paths to adjust to the carrier frequency point of the serving cell to receive the signal of the serving cell and send signals to the serving cell. At the same time, the terminal device can also adjust other radio frequency paths to the carrier frequency point of the neighboring cell to receive the reference signal of the neighboring cell. In this way, the terminal device can perform cell measurement without pausing service transmission.
[0075] However, when only one set of radio frequency paths is set inside the terminal device, as shown in Figure 1A the terminal device cannot perform service transmission and cell measurement simultaneously because the terminal device needs to adjust the radio frequency path to the carrier frequency point of the serving cell to receive the signal of the serving cell and send signals to the serving cell; within the gap, the terminal device stops interacting with the serving cell and adjusts the radio frequency path to the carrier frequency point of the neighboring cell to receive the reference signal of the neighboring cell.
[0076] The base station configures the gap measurement of the terminal device by sending measurement configuration information to the terminal device. Among the gap configuration parameters in the measurement configuration information, the value of the gap period (i.e., MGRP) can be 40ms, 80ms, etc.; the maximum value of the gap length (MGL) is 6ms; the value range of the gap offset (gapoffset) 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 by referring to the following formula:
[0077] T = MGRP / 10;
[0078] SFN mod T = FLOOR(gapoffset / 10);
[0079] subframe = gapoffset mod 10;
[0080] Wherein, SFN is the system frame number of the serving cell of the terminal device, and subframe is the subframe in the system frame of the SFN.
[0081] In order to ensure the cell measurement efficiency of the terminal device and improve the success rate of the cell measurement of the terminal device, the terminal device should be able to receive the reference signals of all neighboring cells to be measured within the gap configured by the base station for the terminal device, so that the terminal device can realize the measurement of all neighboring cells to be measured.
[0082] However, the time domain position of the gap is determined by the terminal device according to the timing of the serving cell, while the time domain position of the reference signal of each neighboring cell is determined according to the timing of the corresponding neighboring cell.
[0083] For example, in the long term evolution (LTE) cell of the fourth generation (4G) communication technology, the cell reference signal (CRS) is evenly distributed on each subframe. th Generation, 4G) communication technology, the cell reference signal (CRS) of the long term evolution (LTE) cell is evenly distributed on each subframe.
[0084] For another example, referring to Figure 1C the fifth generation (5G) communication technology, the reference signal of the new radio (NR) cell - the synchronization signal block (SSB) is sent according to a period, and multiple SSBs can be sent within one period, but the multiple SSBs are concentrated in a certain time window within the period to form an SSB burst. Among them, the SSB period can be 5 ms, 10 ms, 20 ms, 40 ms, 80 ms, or 160 ms, etc., and the SSB periods of different NR cells can also be different. Exemplarily, assuming the SSB period is 20 ms, the SSB burst can be concentrated in the first or second 5 ms for transmission. th Generation, 5G) communication technology, the reference signal of the new radio (NR) cell - the synchronization signal block (SSB) is sent according to a period, and multiple SSBs can be sent within one period, but the multiple SSBs are concentrated in a certain time window within the period to form an SSB burst. Among them, the SSB period can be 5 ms, 10 ms, 20 ms, 40 ms, 80 ms, or 160 ms, etc., and the SSB periods of different NR cells can also be different. Exemplarily, assuming the SSB period is 20 ms, the SSB burst can be concentrated in the first or second 5 ms for transmission.
[0085] Therefore, 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 signals of some neighboring cells to be measured. As Figure 1D shown, the terminal device can receive the reference signal of neighboring cell a within gap1, but cannot receive the reference signal of neighboring cell b; the terminal device cannot receive the reference signals of neighboring cell a and neighboring cell b within gap2. Obviously, this will cause the terminal device to be unable to receive the reference signals of all neighboring cells to be measured within the fixed - position gap, thus unable to complete the measurement of all cells to be measured, and further resulting in the failure of the cell measurement of the terminal device.
[0086] To solve the above problems, the present application provides a measurement configuration method and device. In the solution provided by the embodiments of the present application, the base station may instruct the terminal device to adjust the offset of the gap (i.e., the position of the gap) during subsequent cell measurements. In this way, during subsequent cell measurement processes, the probability that the terminal device receives the reference signal of the to-be-measured neighboring cell that has not been measured before within the gap can be increased. Therefore, this method can improve the success rate and efficiency of the cell measurement of the terminal device.
[0087] The embodiments of the present application will be specifically described below with reference to the accompanying drawings.
[0088] Figure 2 Shows the architecture of a possible communication system to which the measurement configuration method provided by the embodiments of the present application is applicable. Refer to Figure 2 As shown, in this communication system, it includes: a base station 201 (such as base stations 201a, 201b, 201c in the figure), and a terminal device 202.
[0089] The base station 201 is responsible for providing services related to wireless access for the terminal device 202, and implementing functions such as wireless physical layer functions, resource scheduling and wireless resource management, Quality of Service (QoS) management, radio access control, and mobility management (such as cell reselection and handover).
[0090] 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.
[0091] In this communication system, each cell uses a corresponding carrier frequency point to provide access services for the terminal device. It should be noted that the frequency points used by different cells may be the same or different. In addition, the present application does not limit the communication technology used by each cell, and the communication technologies used by different cells may be the same or different. Exemplarily, cells A, B, C, and D are all LTE cells using 4G communication technology; or cells A, B, C, and D are all NR cells using 5G communication technology; or some of cells A, B, C, and D are LTE cells and some are NR cells.
[0092] The terminal device 202 is a device that accesses the network through the cell managed by the base station 201.
[0093] The base station 201 and the terminal device 202 are connected through the Uu interface, so as to realize the communication between the terminal device 202 and the base station 201.
[0094] In addition, Figure 2 The architecture shown can be applied to various communication scenarios. For example, the 5th Generation (5G) communication system, future 6th generation communication systems and other evolved communication systems, Long Term Evolution (LTE) communication systems, vehicle to everything (V2X), LTE-vehicle (LTE-V), vehicle to vehicle (V2V), vehicle networking, Machine Type Communications (MTC), Internet of Things (IoT), LTE-machine to machine (LTE-M), machine to machine (M2M), and other communication scenarios.
[0095] The measurement configuration method provided by the embodiments of this application is applicable to various scenarios that require inter-frequency / inter-system measurement through the gap measurement method in the communication system shown in Figure 2 For example, in the LTE measurement scenario in 4G communication technology, and the following scenarios in 5G communication technology that support Dual Connectivity (DC) technology: EN-DC (EUTRA-NR Dual Connectivity) scenario, NE-DC (NR-EUTRA Dual Connectivity), NR-DC, and non-DC scenarios, SA scenario and NSA scenario in 5G communication technology.
[0096] Assume that the terminal device 202 accesses the cell A (cell A is the serving cell) managed by the base station 201a, and cell B, cell C, and cell D are the neighboring cells determined by the base station 201a for the terminal device 202.
[0097] For example, in the LTE measurement scenario and non-DC scenario, 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 within 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 to a cell with better signal quality according to the signal quality parameters of each cell in the measurement report.
[0098] For another example, in various scenarios that support dual-connectivity technology, cell A is the primary cell (PCell) of the terminal device 202, and 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 a gap configuration parameter 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 within the gap. After the measurement is completed, the terminal device reports a measurement report to the base station 201a; 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 add a secondary cell group (SCG) for the terminal device 202.
[0099] To improve the success rate and efficiency of cell measurement of the terminal device, an embodiment of the present application provides a measurement configuration method. Among them, this method can be applied to Figure 2 various scenarios in the communication system shown that require inter-frequency / inter-system measurement through the gap measurement method. The base station instructs the terminal device to adjust the offset of the gap (i.e., the position of the gap) when performing cell measurement in the future through the measurement configuration information. In this way, during the subsequent cell measurement process, the probability that the terminal device receives the reference signal of the neighboring cell to be measured that was not measured before within the gap can be increased. Therefore, this method can improve the success rate and efficiency of the cell measurement of the terminal device. Exemplarily, the base station may send the measurement configuration information after determining that the cell measurement of the terminal device fails, or when receiving an instruction, or within a time window.
[0100] The following combines Figure 3 the flowchart shown to illustrate the measurement configuration method provided by the embodiment of the present application. It should be noted that Figure 3 the method flowchart shown does not limit the measurement configuration method provided by the present application. The measurement configuration method provided by the present application may include more or fewer steps than Figure 3 the method shown.
[0101] S301: 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 for cell measurement as f0. The terminal device receives the first measurement configuration information from the base station.
[0102] Exemplarily, the first measurement configuration information may be traditional measurement configuration information, which may include gap configuration parameters (gap period, gap length, and offset of the gap), and may also include information such as a list of neighboring cells to be measured and a reporting strategy for measurement reports. For example, the first measurement configuration information may be a measurement gap configuration (measGapConfig) signaling or a measurement configuration (measConfig) signaling.
[0103] Among them, the length of the gap configured by the base station for the terminal device through the first measurement configuration information may be, but is not limited to, the maximum gap length of 6 ms specified by LTE communication technology, NR R15, and R16. In the following descriptions and examples of this application embodiment, only L = 6 ms is used as an example for illustration.
[0104] S302: The terminal device determines the position of the gap used for this cell measurement according to the first measurement configuration information, as Figure 1B shown, and performs cell measurement within the determined gap. Where the gap length is L, the gap period is T0, and the offset of the gap is f0.
[0105] In the embodiment of this application, the terminal device performs cell measurement within the gap, including: the terminal device receives the reference signal of the neighboring cell to be measured within this gap and determines the measurement result of the neighboring cell to be measured.
[0106] It should be noted that the time domain positions of the reference signals of all neighboring cells to be measured may not be covered within this gap. For example, Figure 1D as shown, therefore, within this gap, the terminal device may only receive the reference signals of some neighboring cells to be measured, or may not receive the reference signals of all neighboring cells to be measured. At this time, the cell measurement of the terminal device fails.
[0107] In the case where the cell measurement of the terminal device fails, the terminal device may, but is not limited to, notify the base station in the following ways:
[0108] Method 1: The terminal device may not send a measurement report to the base station according to the reporting strategy of the measurement report, or in accordance with the protocol or the agreement with the base station.
[0109] Method 2: The terminal device may send a measurement report carrying the measurement results of some neighboring cells to be measured to the base station.
[0110] Method 3: The terminal device may send a measurement report carrying the measurement results of all the neighboring cells to be measured to the base station, and the measurement results of the neighboring cells to be measured that the terminal device has not measured are invalid in this measurement report. Exemplarily, the measurement results of the cells to be measured that the terminal device has not measured may be empty, zero, or an indicator used to indicate that the measurement results are invalid.
[0111] Method 4: The terminal device may send a notification message to the base station, and the notification message is used to notify the base station that the cell measurement of the terminal device fails.
[0112] S303: When the terminal device notifies the base station that the cell measurement fails by using the above Method 2 or Method 3, the terminal device sends a first measurement report to the base station. The base station receives the first measurement report from the terminal device. As shown in the figure, this step is an optional step.
[0113] Among them, when the terminal device uses the above Method 2, the first measurement report contains the measurement results of some neighboring cells to be measured; when the terminal device uses the above Method 3, the first measurement report contains the measurement results of all the cells to be measured, and only the measurement results of the neighboring cells to be measured measured by the terminal device are valid.
[0114] S304: The base station determines that the cell measurement of the terminal device fails.
[0115] Corresponding to the method by which the terminal device notifies the base station that the cell measurement fails in the above S302, the base station may also determine that the cell measurement of the terminal device fails by the following methods:
[0116] Method 1: The base station does not receive a measurement report from the terminal device within a set duration, and determines that the cell measurement of the terminal device fails.
[0117] Method 2: The base station receives a first measurement report from the terminal device. When the base station determines that the first measurement report does not contain the measurement results of all the cells to be measured, it determines that the cell measurement of the terminal device fails.
[0118] Method 3: The base station receives a first measurement report from the terminal device. When the base station determines that there are invalid measurement results of some neighboring cells to be measured in the first measurement report, it determines that the cell measurement of the terminal device fails.
[0119] Method 4: When the base station receives the notification message from the terminal device, it determines that the cell measurement of the terminal device fails.
[0120] S304a: The base station determines to adjust the offset of the gap used for subsequent cell measurement of the terminal device.
[0121] Optionally, after determining that the offset needs to be adjusted, the base station may notify the terminal device through various implementation manners to implement the configuration of the offset.
[0122] In an embodiment of the present application, the base station may adjust the position of the gap within the gap period by increasing the offset of the gap, so as to cover the time domain position of the reference signal of the to-be-measured neighboring cell that was not measured before.
[0123] The first implementation manner: When a preset adjustment rule for the offset is determined through negotiation between the base station and the terminal device, or the protocol stipulates a preset adjustment rule for the offset, the base station may send an offset adjustment indication to the terminal device. In this way, the terminal device adjusts the offset according to the offset adjustment indication and in accordance with the preset adjustment rule. Wherein, the offset adjustment indication is used to instruct the terminal device to adjust the offset according to the preset adjustment rule.
[0124] The second implementation manner: The base station may directly determine the offset configuration information and send it to the terminal device. In this way, the terminal device may directly determine the value f1 of the adjusted offset according to the offset configuration information. Wherein, the offset configuration information is used for the terminal device to determine the value f1 of the offset after this adjustment.
[0125] In the second implementation manner, the offset configuration information may include any one of the following: an adjustment value Δf, an adjustment value indication for determining the adjustment value Δf, or the adjusted value f1. It should be noted that in an embodiment of the present application, wherein, the Δf may be set relative to the default value f0 of the offset (the value of the offset initially configured by the base station for the terminal device), or the Δf may be set relative to the value f of the offset configured by the base station for the terminal device last time i-1 set (wherein, i represents the number of adjustments, i is a positive integer, and when i = 1, f i-1 = f0 is the default value of the offset).
[0126] Regardless of which implementation mode is adopted, the value of Δf is greater than 0 and less than T0, where T0 is the gap period used by the terminal device for cell measurement. It should be noted that, in order to avoid missing the time-domain position of the reference signal of the neighboring cell to be measured, in the embodiments of the present application, the offset of the gap can determine the adjustment step r according to the gap length L, and the value of r is less than or equal to L. In addition, in order to prevent time jitter and improve the service throughput rate of the terminal device as much as possible, the adjustment step r = L - 1 ms. Since in the embodiments of the present application, L is only illustrated by taking L = 6 ms as an example, therefore, r = 5 ms.
[0127] In the embodiments of the present application, the preset adjustment rule in the first implementation mode can be determined according to the adjustment step r. Exemplarily, the preset adjustment rule can satisfy: f i = f i-1 + 5 ms, or f i = f0 + 5 ms * i, that is, each time on the basis of the offset of the gap configured by the base station last time, an adjustment step of 5 ms is added.
[0128] Of course, the base station can also determine the offset configuration information in the second implementation mode according to the adjustment step r, and the following are illustrated by several examples.
[0129] Example 1: The offset configuration information includes an adjustment value Δf. The value of the adjustment value Δf is n * r, where the value of n is a positive integer less than or equal to N, and N = T1 / r, and T1 is the reference signal transmission period of the neighboring cell to be measured. In this way, the terminal device can determine the adjusted offset f i = f0 + Δf.
[0130] Exemplarily, when the Δf is set relative to the default value f0 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 can be i.
[0131] Exemplarily, when the Δf is set relative to the offset value f i-1 configured by the base station for the terminal device last time, n can be 1.
[0132] Example 2: When the offset configuration information includes an adjustment value indication for determining the adjustment value Δf, the adjustment value indication is n, where the value of n is a positive integer less than or equal to N, and N = T1 / r, and T1 is the reference signal transmission period of the neighboring cell to be measured.
[0133] Exemplarily, when the Δf is set relative to the default value f0 of the offset (the value of the offset first configured by the base station for the terminal device), and when i is less than or equal to N, the value of n can be i. In this way, the terminal device can determine the offset Δf = r * n according to the adjustment value indication, and then determine the adjusted offset f i = f0 + r * i.
[0134] Exemplarily, when the Δf is set relative to the value f of the offset configured by the base station for the terminal device last time i-1 When set, n can be 1. In this way, the terminal device can determine the offset Δf = 5 ms according to the adjustment value indication, and then determine the adjusted offset f i = f i-1 + 5 ms.
[0135] Example 3: When the adjustment value indication is included in the offset configuration information, the adjustment value indication can be a bitmap sequence. Among them, 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 by the terminal device for cell measurement, and T1 is the reference signal transmission period of the neighboring cell to be measured. Optionally, the bitmap sequence can adopt the one-hot code encoding method. In this way, the terminal device can accurately determine the adjustment value corresponding to the bitmap sequence according to the received bitmap sequence, and then determine the adjusted offset.
[0136] In the embodiments of the present application, the base station can also determine the value of the above offset configuration information by saving the historical record of the system frame number and frame timing deviation (SFN and frame timing different, SFTD) between the serving cell of the terminal device and the neighboring cell to be measured. Among them, when there are multiple neighboring cells to be measured, the base station can select the historical record of SFTD between the serving cell and the neighboring cell to be measured with the strongest signal. The process of the base station adjusting the offset of the gap according to SFTD can be the same as the traditional method, which will not be elaborated here.
[0137] In addition, in order to 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 base station can further adjust the reporting strategy of the measurement report to: periodic trigger, or the reporting strategy that prefers the arrival time first in periodic trigger or event trigger.
[0138] Through the above solutions, the flexibility of the base station's adjustment method for the gap offset can be increased.
[0139] S305: The base station sends second measurement configuration information to the terminal device. The second measurement configuration information includes an offset adjustment indication or offset configuration information. After receiving the second measurement configuration information from the base station, the terminal device can determine that the gap length and gap period remain unchanged and adjust the offset of the gap.
[0140] When the base station also determines to adjust the reporting policy of the measurement report in S304, correspondingly, the second measurement configuration information is further used to indicate that the reporting policy of the measurement report is periodic triggering, or a reporting policy that prefers the arrival time first among periodic triggering or event triggering.
[0141] Optionally, the second measurement configuration information can be multiple pieces of information. For example, the second measurement configuration information can include, but is not limited to, signaling 1 that configures the offset of the gap and signaling 2 that configures the reporting policy of the measurement report. Of course, signaling 1 can include an indication to maintain the gap length and gap period unchanged, or include the gap length L and gap period T0 configured by the base station for it last time.
[0142] S306: The terminal device determines the value f1 of the adjusted offset according to the second measurement configuration information, and determines the position of the gap according to f1, the gap length L and gap period T0 configured by the base station for it last time, and performs cell measurement within the gap.
[0143] According to different information included in the second measurement configuration information, the implementation manner for the terminal device to determine the value f1 of the adjusted offset is also different. The specific process can refer to the description in S304a above and will not be elaborated here.
[0144] In addition, in this step, the process of the terminal device performing cell measurement within the gap is the same as that in S302. Therefore, the process of the terminal device performing cell measurement can refer to the description in S302 above and will not be elaborated here.
[0145] In addition, due to various reasons, this cell measurement may succeed or may fail. When the cell measurement of the terminal device is successful, the terminal device sends a second measurement report to the base station through S307; when the cell measurement of the terminal device fails, the terminal device can also notify the base station of the failure of this cell measurement through the 4 methods described in S302.
[0146] S307: 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 an optional step.
[0147] When the second measurement configuration information is further used to indicate the reporting policy of the measurement report, the terminal device reports the second measurement report according to the reporting policy. It should be noted that when the terminal device sends the second measurement report to the base station, the measurement results of the valid cells to be measured measured previously and saved by the terminal device may be carried; or after the terminal device determines that the measurement results of all cells to be measured are obtained through multiple cell measurements, the measurement results of all cells to be measured are reported to the base station through the second measurement report.
[0148] Subsequently, the base station determines whether the current cell measurement of the terminal device is successful or failed according to the second measurement report (or in combination with the first measurement report). As Figure 3 shown in S304, when the base station continues to determine that the current cell measurement of the terminal device fails (the second measurement report (and the first measurement report) does not include the measurement results of all cells to be measured), the process of adjusting the offset of the gap for the next time continues. Among them, the method for the base station to adjust the offset of the gap for the next time is the same as that in S304a - S305, and the specific process can be referred to the description in the corresponding steps and will not be elaborated here. It should be noted that when the adjustment value Δf of this adjustment is set relative to the default value f0 of the offset, the Δf of this adjustment has a certain increase compared with the Δf of this adjustment in S304a, for example, an increase of 5 ms, so as to ensure that the value f2 of the offset determined by the terminal device after this adjustment > f1, so that the terminal device can re - determine the position of the gap within the gap period and then perform cell measurement. When the base station determines that the current cell measurement of the terminal device is successful, it can perform cell handover or add SCG according to the measurement results of all cells to be measured.
[0149] It should also be noted that in the embodiments of the present application, the base station sending each measurement configuration information to the terminal device, and the terminal device sending a measurement report or a notification message to the base station can both be implemented through RRC signaling, and the present application does not limit this.
[0150] Through the above measurement configuration method, when the base station adjusts the offset of the gap with an adjustment step of 5 ms in the case of each cell measurement failure of the terminal device, since the reference signal of the neighboring cell to be measured is also sent with a period of T1, therefore, the terminal device can perform cell measurement at most T1 / 5 ms times, that is, at most for a duration of T1 * (T1 / 5 ms), and the base station can measure all cells to be measured, thereby completing the cell measurement and avoiding performance loss caused by continuous measurement failure.
[0151] An embodiment of the present application provides a measurement configuration method. In this method, after determining that the cell measurement of the terminal device fails, the base station notifies the terminal device to adjust the offset of the gap when performing subsequent cell measurements without changing other gap configuration parameters. In this way, during subsequent cell measurement processes, the probability that the terminal device receives the reference signal of the to-be-measured neighboring cell that was not measured before within the gap can be increased, so as to ensure that the terminal device can complete cell measurement after at most T1 / r measurements. Therefore, this method can improve the success rate and efficiency of cell measurement of the terminal device.
[0152] Based on Figure 3 the embodiments shown, the present application also provides an example of a method for adjusting the gap offset. Refer to Figure 4A shown. In this example, the offset of the gap is adjusted by a set adjustment step size r each time. To prevent time jitter and maximize the traffic throughput rate of the terminal device as much as possible, the adjustment step size r = gap length - 1 ms. Additionally, since the gap length is usually set to 6 ms, only r = 5 ms is taken as an example for illustration in this example. According to the adjustment step size, the base station and the terminal device can agree on an adjustment value set {5 ms, 10 ms, ……, }. Where T1 is the transmission period of the reference signal of the to-be-measured neighboring cell.
[0153] Each time the base station determines that the cell measurement of the terminal device fails, it increases the offset of the gap according to the adjustment step size. Or each time the base station determines that the cell measurement of the terminal device fails, on the basis of the default offset of the gap initially configured for the terminal device by the base station, it increases an adjustment value, where this adjustment value is determined in the adjustment value set according to the number of offset adjustments. For example, when adjusting for the first time, the base station or the terminal device determines that the adjustment value is 5 ms; when adjusting for the second time, the base station or the terminal device determines that the adjustment value is 10 ms, and so on.
[0154] Refer to Figure 4AAs shown, it is assumed that the gap configuration parameters initially configured by the base station for the terminal device are: the offset of the gap = 0 ms, the gap period is 40 ms, and the gap length = 6 ms. The base station configures 4 neighboring cells to be measured for the terminal device, and the transmission period of the reference signal of each neighboring cell to be measured is 20 ms. As shown in the figure, when the terminal device performs cell measurement for the first time, within the gap position with a gap offset value of 0, only the SSB sent by the neighboring cell to be measured 1 can be received. Therefore, the terminal device can only obtain the measurement result of the neighboring cell to be measured 1, and obviously the cell measurement of the terminal device fails. After determining that the cell measurement of the terminal device fails, the base station can notify the terminal device to adjust the offset of the gap through measurement configuration information. The terminal device determines that the adjusted offset of the gap is 5 ms. Then, the terminal device can receive the SSB sent by the neighboring cell to be measured 1 at the position where the gap offset is 5 ms. Therefore, the terminal device can obtain the measurement result of the neighboring cell to be measured 2. Although the cell measurement still fails, the number of neighboring cells to be measured measured by the terminal device increases. After determining that the cell measurement of the terminal device still fails, the base station can continue to notify the terminal device to continue adjusting the offset of the gap through measurement configuration information; in this way, the terminal device can measure the measurement result of the neighboring cell to be measured 3 at the position where the gap offset is 10 ms, and measure the measurement result of the neighboring cell to be measured 4 at the position where the gap offset is 15 ms. In summary, without changing other gap configuration parameters, the terminal device can finally achieve successful cell measurement through at most 4 cell measurements. The base station can also obtain measurement results of more frequency points to be measured within the duration of T1 * 4, avoiding performance loss caused by continuous cell measurement failure of the terminal device.
[0155] It should be noted that in this example, the base station can adopt Figure 3 the steps and specific implementation methods shown in S304a and S305 in the embodiment shown to notify the terminal device to adjust the offset of the gap, which will not be elaborated here.
[0156] Based on Figure 3 the embodiment shown, the present application also provides an example of a method for adjusting the gap offset. Refer to Figure 4B and Figure 4C shown. In this example, the offset of the gap is adjusted by a set adjustment step r each time. To prevent time jitter and improve the service throughput rate of the terminal device as much as possible, the adjustment step r = gap length - 1 ms. In addition, since the gap length is usually set to 6 ms, only r = 5 ms is used as an example for illustration in this example.
[0157] Refer to Figure 4BAs shown, the base station and the terminal device may agree to divide the gap period T0 into intervals according to the adjustment step size. The starting position of each interval serves as the adjustment value of the gap offset. Therefore, the base station and the terminal device may agree that a bitmap sequence containing bit positions represents the gap offset corresponding to each interval. As shown in the figure, assuming that the gap period initially configured by the base station for the terminal device is 40 ms, then the base station may use an 8-bit bitmap sequence as the indication of the adjustment value of the offset. For example, the adjustment value of the gap offset corresponding to the bitmap sequence "10000000" is 0 ms, the adjustment value of the gap offset corresponding to the bitmap sequence "01000000" is 5 ms; the adjustment value of the gap offset corresponding to the bitmap sequence "00010000" is 15 ms. After determining the adjustment of the gap offset, the base station may sequentially determine an interval and then send the bitmap sequence corresponding to the interval to the terminal device. The terminal device then determines the adjustment value according to the received bitmap sequence.
[0158] Refer to Figure 4C As shown, the base station and the terminal device may agree to divide the reference signal transmission period T1 of the neighboring cell to be measured into intervals according to the adjustment step size. The starting position of each interval serves as the adjustment value of the gap offset. Therefore, the base station and the terminal device may agree that a bitmap sequence containing bit positions represents the gap offset corresponding to each interval. As shown in the figure, assuming that T1 is 20 ms, then the base station may use a 4-bit bitmap sequence as the indication of the adjustment value of the offset. For example, the adjustment value of the gap offset corresponding to the bitmap sequence "1000" is 0 ms, the adjustment value of the gap offset corresponding to the bitmap sequence "0100" is 5 ms; the adjustment value of the gap offset corresponding to the bitmap sequence "0001" is 15 ms.
[0159] It should be noted that in the above example, the bitmap sequence uses the one-hot code encoding method, but this example does not limit the encoding method of the bitmap sequence. In practical applications, the bitmap sequence may also be implemented using other encoding methods, which are not limited in this application.
[0160] Based on the same technical concept, an embodiment of this application also provides a communication device, the structure of which is as Figure 5 shown, including a communication unit 501 and a processing unit 502. The communication device may be applied to Figure 2 the base station or the terminal device in the communication system shown, and may implement the measurement configuration method shown above Figure 3 . The functions of each unit in the device 500 are introduced below:
[0161] The function of the communication unit 501 is to receive and send signals. The communication unit 501 can be implemented by a radio frequency circuit, and an antenna is included in the radio frequency circuit.
[0162] The function of the processing unit 502 when the communication device 500 is applied to a base station will be introduced below.
[0163] The processing unit 502 is configured to send measurement configuration information to a 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 for cell measurement.
[0164] In an implementation manner, the measurement configuration information includes an offset adjustment indication, wherein the offset adjustment indication is used to instruct the terminal device to adjust the offset according to a preset adjustment rule.
[0165] In an implementation manner, the measurement configuration information includes offset configuration information, wherein the offset configuration information is used for the terminal device to determine the value f of the adjusted offset. i 。
[0166] In an implementation manner, the offset configuration information includes: an adjustment value Δf, an adjustment value indication for determining the adjustment value Δf, or the adjusted value f. i ; wherein, the Δf is set relative to the default value f0 of the offset, or the Δf is set relative to the offset value f configured by the base station for the terminal device last time. i-1 Set.
[0167] In an implementation manner, the value of the Δf is n*r, where the value of n is a positive integer less than or equal to N, N = T1 / r, 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 length configured by the base station for the terminal device; or the value of the Δf is a value greater than 0 and less than T0, where T0 is the gap period used by the terminal device for cell measurement.
[0168] In an implementation manner, the adjustment value indication is n, where the value of n is a positive integer less than or equal to N, N = T1 / r, 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 length configured by the base station for the terminal device; or the adjustment value indication is a bitmap sequence, where the bitmap sequence indicates different adjustment values based on different values, and the number of bits of the bitmap sequence is or Let \(T_0\) be the gap period used by the terminal device for cell measurement, \(T_1\) be the reference signal transmission period of the neighboring cell to be measured, \(r\) be a positive number less than or equal to \(L\), and \(L\) be the gap length configured by the base station for the terminal device.
[0169] In one implementation, the measurement configuration information is further used to notify that the reporting policy of the measurement report is periodic triggering, or the reporting policy that preferentially selects the one with an earlier arrival time among periodic triggering and event triggering.
[0170] In one implementation, the processing unit 502 is further configured to:
[0171] Before sending the measurement configuration information to the terminal device through the communication unit 501, determine that the cell measurement of the terminal device fails.
[0172] Next, the function of the processing unit 502 when the communication device 500 is applied to a terminal device is introduced.
[0173] The processing unit 502 is configured to receive measurement configuration information from a 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 for cell measurement; according to the measurement configuration information, determine the value \(f\) of the adjusted offset i , and according to the \(f\) i determine the position of the gap and perform cell measurement within the gap.
[0174] In one implementation, the measurement configuration information includes an offset adjustment indication, where the offset adjustment indication is used to instruct the terminal device to adjust the offset according to a preset adjustment rule;
[0175] When the processing unit 502 determines the value \(f\) of the adjusted offset according to the measurement configuration information i , it is specifically configured to:
[0176] According to the offset adjustment indication, adjust the offset according to the preset adjustment rule to determine the value \(f\) of the adjusted offset i .
[0177] In one implementation, the measurement configuration information includes offset configuration information, where the offset configuration information is used for the terminal device to determine the value \(f\) of the adjusted offset i ;
[0178] When the processing unit 502 determines the value \(f\) of the adjusted offset according to the measurement configuration information i , it is specifically configured to:
[0179] According to the offset configuration information, determine the adjusted offset value f i .
[0180] In one implementation, the offset configuration information includes: an adjustment value Δf, an adjustment value indication for determining the adjustment value Δf, or an adjusted value f i ; wherein the Δf is set relative to the default value f0 of the offset, or the Δf is set relative to the offset value f last configured by the base station for the terminal device i-1 of.
[0181] In one embodiment, the value of Δf is n*r, wherein n is a positive integer less than or equal to N, N=T1 / r, T1 is the reference signal sending period of the neighboring cell to be measured, 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 Δf is a value greater than 0 and less than T0, wherein T0 is the gap period used by the terminal device when performing cell measurement.
[0182] In one embodiment, the adjustment value indication is n, wherein the value of n is a positive integer less than or equal to N, N=T1 / r, T1 is the reference signal sending period of the neighboring cell to be measured, 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 adjustment value indication is a bitmap sequence, wherein 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 by the terminal device for cell measurement, T1 is the reference signal sending period of the neighboring cell to be measured, 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.
[0183] In one embodiment, the measurement configuration information is also used to notify that the reporting strategy of the measurement report is periodic triggering, or is a reporting strategy that prefers an earlier arrival time in periodic triggering or event triggering; the processing unit 502 is also used to: after performing cell measurement within the gap, send a measurement report to the base station through the communication unit 501 according to the reporting strategy indicated by the measurement configuration information, wherein the measurement report includes the measurement results generated by the terminal device.
[0184] It should be noted that the division of modules in the above embodiments of this application is illustrative, merely a logical function division. In actual implementation, there may be other division methods. Additionally, in each embodiment of this application, each functional unit can be integrated in a processing unit, exist independently physically, or two or more units can be integrated in one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
[0185] If the above 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. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to enable a computer device (which can 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 each embodiment of this application. The aforementioned storage medium includes: USB flash drives, mobile hard disks, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical discs, etc., all kinds of media that can store program codes.
[0186] Based on the same technical concept, an embodiment of this application further provides a communication device, which can be applied to Figure 2 the base station or terminal device in the communication system shown, and can implement the measurement configuration method as shown in Figure 3 . Referring to Figure 6 shown, the communication network device includes: a transceiver 601, a processor 602, and a memory 603. Among them, the transceiver 601, the processor 602, and the memory 603 are interconnected with each other.
[0187] Optionally, the transceiver 601, the processor 602, and the memory 603 are interconnected with each other through a bus 604. The bus 604 can be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For the convenience of representation, Figure 6 only a thick line is used to represent it in the figure, but it does not mean that there is only one bus or one type of bus.
[0188] The transceiver 601 is used to receive and send signals, realizing communication and interaction with other devices.
[0189] The processor 602 is used to implement the measurement configuration method in the embodiments as Figure 3 shown.
[0190] In one implementation, 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 to notify the terminal device to adjust the offset of the gap used for cell measurement. For specific descriptions, reference can be made to the relevant descriptions in the above embodiments, which will not be elaborated here.
[0191] In another implementation, 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, wherein the measurement configuration information is used to notify the terminal device to adjust the offset of the gap used for cell measurement; determine the value f of the adjusted offset according to the measurement configuration information i , and determine the position of the gap according to the f i , and perform cell measurement within the gap. For specific details, reference can be made to the descriptions in the above embodiments, which will not be elaborated here.
[0192] The memory 603 is used to store program instructions and data, etc. Specifically, the program instructions may include program codes, and the program codes include computer operation instructions. The memory 603 may include a random access memory (RAM), and may also include a 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 functions, thereby implementing the measurement configuration method provided in the above embodiments.
[0193] Based on the above embodiments, the embodiments of the present application further provide a computer program, when the computer program runs on a computer, causing the computer to execute Figure 3 the measurement configuration method provided in the embodiments shown.
[0194] Based on the above embodiments, the embodiments of the present application further provide a computer-readable storage medium, in which a computer program is stored, and when the computer program is executed by a computer, causing the computer to execute Figure 3 the measurement configuration method provided in the embodiments shown.
[0195] Based on the above embodiments, an embodiment of the present application further provides a chip, which is used to read a computer program stored in a memory to implement Figure 3 the measurement configuration method provided by the embodiment shown.
[0196] Based on the above embodiments, an embodiment of the present application provides a chip system, which includes a processor for supporting a computer device to implement Figure 3 the functions involved in the base station or terminal device in the embodiment shown. In a possible design, the chip system further includes a memory for storing necessary programs and data of the computer device. The chip system can be composed of chips or can include chips and other discrete devices.
[0197] In summary, the present application provides a measurement configuration method and apparatus. In this solution, after determining that the cell measurement of the terminal device fails, the base station notifies the terminal device to adjust the offset of the gap when performing subsequent cell measurements without changing other gap configuration parameters. In this way, during subsequent cell measurement processes, the probability that the terminal device receives the reference signal of the to-be-measured neighboring cell that was not measured before within the gap can be increased, so as to ensure that the terminal device can complete cell measurement after a limited number of measurements. Therefore, this method can improve the success rate and efficiency of cell measurement of the terminal device.
[0198] Those skilled in the art should understand that the embodiments of the present application can be provided as a method, a system, or a computer program product. Therefore, the present application can take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk memories, CD-ROMs, optical memories, etc.) containing computer-usable program codes.
[0199] The present application is described with reference to the flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to the present application. It should be understood that each flow and / or block in the flowchart and / or block diagram, and the combination of flows and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing devices generate a device for implementing the functions specified in one or more flows in the flowchart and / or one or more blocks in the block diagram.
[0200] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to operate in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means embodying the functionality specified in one or more blocks of the flowchart and / or one or more blocks of the block diagram.
[0201] These computer program instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process, whereby the instructions executed on the computer or other programmable apparatus provide steps for implementing the functionality specified in one or more blocks of the flowchart and / or one or more blocks of the block diagram.
[0202] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalent technologies, this application is also intended to include these modifications and variations.
Claims
1. A measurement configuration method, characterized in that, Including: 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 for cell measurement; the adjusted offset of the gap is greater than the offset of the gap before adjustment. 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.
2. The method according to claim 1, characterized in that, The measurement configuration information includes an offset adjustment indication, wherein the offset adjustment indication is used to instruct the terminal device to adjust the offset according to a preset adjustment rule.
3. The method according to claim 1, characterized in that, The measurement configuration information includes offset configuration information, where the offset configuration information is used by the terminal device to determine the value f of the adjusted offset i .
4. The method according to claim 3, characterized in that, The offset configuration information includes: an adjustment value Δf, an adjustment value indication for determining the adjustment value Δf, or an adjusted value f i ; Wherein, the Δf is set relative to the default value f0 of the offset, or the Δf is the offset value f configured by the base station for the terminal device last time. i-1 Set.
5. The method according to claim 4, characterized in that, The value of Δf is n*r, where n is a positive integer less than or equal to N, N = T1 / r, 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 length configured by the base station for the terminal device; or The value of Δf is a value greater than 0 and less than T0, where T0 is the gap period used by the terminal device for cell measurement.
6. The method according to claim 4, characterized in that, The adjustment value indication is n, where n is a positive integer less than or equal to N, N = T1 / r, 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 length configured by the base station for the terminal device; or The adjustment value indication is a bitmap sequence, where different adjustment values are indicated based on different values, and the number of bits of 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 length configured by the base station for the terminal device.
7. The method according to any one of claims 1-6, characterized in that, The measurement configuration information is further used to notify that the reporting policy of the measurement report is periodic triggering, or a reporting policy that prefers the earlier arrival time in periodic triggering or event triggering.
8. A measurement configuration method, characterized in that, Including: The terminal device receives measurement configuration information from the base station, wherein the measurement configuration information is used to notify the terminal device to adjust the offset of the gap used for cell measurement; the adjusted offset of the gap is greater than the offset of the gap before adjustment. The terminal device determines the value f of the adjusted offset according to the measurement configuration information i , and determines the position of the gap according to the f i and performs cell measurement within the gap 9. The method according to claim 8, characterized in that, The measurement configuration information includes an offset adjustment indication, wherein the offset adjustment indication is used to instruct the terminal device to adjust the offset according to a preset adjustment rule. The terminal device determines the value f of the adjusted offset according to the measurement configuration information i , including: The terminal device adjusts the offset according to the offset adjustment indication and determines the value f of the adjusted offset according to the preset adjustment rule i .
10. The method according to claim 8, characterized in that, The measurement configuration information includes offset configuration information, where the offset configuration information is used by the terminal device to determine the value f of the adjusted offset i ; The terminal device determines the value f of the adjusted offset according to the measurement configuration information i , including: The terminal device determines the value f of the adjusted offset according to the offset configuration information i .
11. The method according to claim 10, characterized in that, The offset configuration information includes: an adjustment value Δf, an adjustment value indication for determining the adjustment value Δf, or an adjusted value f i ; where the Δf is set relative to the default value f0 of the offset, or the Δf is relative to the offset value f i-1 configured by the base station for the terminal device last time.
12. The method according to claim 11, characterized in that, The value of Δf is n*r, where n is a positive integer less than or equal to N, N = T1 / r, 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 length configured by the base station for the terminal device; or The value of Δf is a value greater than 0 and less than T0, where T0 is the gap period used by the terminal device for cell measurement.
13. The method according to claim 11, characterized in that, The adjustment value indication is n, where n is a positive integer less than or equal to N, N = T1 / r, 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 length configured by the base station for the terminal device; or The adjustment value indication is a bitmap sequence, where different adjustment values are indicated based on different values, and the number of bits of 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 length configured by the base station for the terminal device.
14. The method according to any one of claims 8-13, characterized in that,The measurement configuration information is further used to notify that the reporting policy of the measurement report is periodic triggering, or a reporting policy that prefers the earlier arrival time in periodic triggering or event triggering. After the terminal device performs cell measurement within the gap, the method further includes: The terminal device sends a measurement report to the base station according to the reporting policy indicated by the measurement configuration information, where the measurement report contains the measurement results generated by the terminal device.
15. A base station, characterized in that, It includes: A communication unit for receiving and sending signals; A processing unit for sending measurement configuration information to the terminal device through the communication unit; where the measurement configuration information is used to notify the terminal device to adjust the offset of the gap used for cell measurement; the adjusted offset of the gap is greater than the offset of the gap before adjustment; The processing unit is further configured to: Determine that the cell measurement of the terminal device fails before sending the measurement configuration information to the terminal device through the communication unit.
16. The base station according to claim 15, characterized in that, The measurement configuration information includes an offset adjustment indication, where the offset adjustment indication is used to instruct the terminal device to adjust the offset according to a preset adjustment rule.
17. The base station according to claim 15, characterized in that, The measurement configuration information includes offset configuration information, where the offset configuration information is used by the terminal device to determine the value f of the adjusted offset i .
18. The base station according to claim 17, characterized in that, The offset configuration information includes: an adjustment value Δf, an adjustment value indication for determining the adjustment value Δf, or an adjusted value f i ; Wherein, the Δf is set relative to the default value f0 of the offset, or the Δf is the offset value f configured by the base station for the terminal device last time. i-1 Set.
19. The base station according to claim 18, characterized in that, The value of Δf is n*r, where n is a positive integer less than or equal to N, N = T1 / r, 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 length configured by the base station for the terminal device; or The value of Δf is a value greater than 0 and less than T0, where T0 is the gap period used by the terminal device for cell measurement.
20. The base station according to claim 18, characterized in that, The adjustment value indication is n, where n is a positive integer less than or equal to N, N = T1 / r, 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 length configured by the base station for the terminal device; or The adjustment value indication is a bitmap sequence, where different adjustment values are indicated based on different values, and the number of bits of 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 length configured by the base station for the terminal device.
21. The base station according to any one of claims 15 - 20, characterized in that, The measurement configuration information is further used to notify that the reporting policy of the measurement report is periodic triggering, or is the reporting policy that prefers the earlier arrival time in periodic triggering or event triggering.
22. A terminal device, characterized in that, It includes: A communication unit for receiving and sending signals; A processing unit, configured to receive measurement configuration information from a base station via the communication unit, where the measurement configuration information is used to notify the terminal device to adjust an offset of a gap used for cell measurement; an offset of the adjusted gap is greater than an offset of the gap before adjustment; and determine a value f of the offset after adjustment according to the measurement configuration information i , and according to the f i determine a position of the gap, and perform cell measurement within the gap.
23. The terminal device according to claim 22, characterized in that, The measurement configuration information includes an offset adjustment indication, where the offset adjustment indication is used to instruct the terminal device to adjust the offset according to a preset adjustment rule; When determining the value f of the adjusted offset according to the measurement configuration information, the processing unit specifically is configured to: i Adjust the offset according to the offset adjustment indication and determine the value f of the adjusted offset according to the preset adjustment rule i .
24. The terminal device according to claim 22, characterized in that, The measurement configuration information includes offset configuration information, where the offset configuration information is used by the terminal device to determine the value f of the adjusted offset i ; The processing unit, when determining the value f of the adjusted offset according to the measurement configuration information, specifically is used for: i when: Determine the value f of the adjusted offset according to the offset configuration information i .
25. The terminal device according to claim 24, characterized in that, The offset configuration information includes: an adjustment value Δf, an adjustment value indication for determining the adjustment value Δf, or an adjusted value f i ; where the Δf is set relative to the default value f0 of the offset, or the Δf is relative to the offset value f i-1 configured by the base station for the terminal device last time.
26. The terminal device according to claim 25, characterized in that, The value of Δf is n*r, where n is a positive integer less than or equal to N, N = T1 / r, 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 length configured by the base station for the terminal device; or The value of Δf is a value greater than 0 and less than T0, where T0 is the gap period used by the terminal device for cell measurement.
27. The terminal device according to claim 25, wherein, The adjustment value indication is n, where n is a positive integer less than or equal to N, N = T1 / r, 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 length configured by the base station for the terminal device; or The adjustment value indication is a bitmap sequence, where different adjustment values are indicated based on different values, and the number of bits of 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 length configured by the base station for the terminal device.
28. The terminal device according to any one of claims 22-27, wherein, The measurement configuration information is further used to notify that the reporting policy of the measurement report is periodic triggering, or is the reporting policy that prefers the earlier arrival time in periodic triggering or event triggering; The processing unit is further configured to: after performing cell measurement within the gap, send a measurement report to the base station through the communication unit according to the reporting policy indicated by the measurement configuration information, where the measurement report includes the measurement result generated by the terminal device.
Citation Information
Patent Citations
Confirmation of measuring gap and communication device
CN102595450A