CN112788653A - Measurement configuration method and equipment - Google Patents
Measurement configuration method and equipment Download PDFInfo
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- CN112788653A CN112788653A CN201911089057.2A CN201911089057A CN112788653A CN 112788653 A CN112788653 A CN 112788653A CN 201911089057 A CN201911089057 A CN 201911089057A CN 112788653 A CN112788653 A CN 112788653A
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- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
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- H04W36/00—Hand-off or reselection arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
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Abstract
The application provides a measurement configuration method and equipment, which are used for improving the success rate and efficiency of cell measurement of terminal equipment. In the scheme, after determining that the cell measurement of the terminal equipment fails, the base station indicates the terminal equipment to use a longer gap when the cell measurement is subsequently performed. Therefore, in the subsequent cell measurement process, the probability that the terminal equipment receives the reference signals of all the to-be-measured adjacent cells in the gap can be improved, and therefore, the method can improve the success rate and the efficiency of the cell measurement of the terminal equipment.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a measurement configuration method and device.
Background
In a communication system, in order to ensure service continuity and communication quality of a terminal device, the terminal device generally needs to perform cell measurement, so as to implement cell reselection (reselection) and cell handover (handover). The types of cell measurement include common-frequency measurement and different-frequency/different-system measurement.
When a terminal device initially accesses or performs inter-frequency/inter-system measurement in a Radio Resource Control (RRC) connected state (RRC _ connected), the terminal device needs to perform cell measurement in a gap measurement mode, which specifically includes: and the terminal equipment receives the reference signals of the adjacent cells in the gap and measures the reference signals of the adjacent cells. After the measurement is completed, the terminal device sends a measurement report (measurement report) to the base station managing the serving cell. And then the base station switches the terminal equipment to a cell with better signal quality according to the measurement report.
Currently, before performing cell measurement, a terminal device needs to perform measurement configuration by a base station managing a serving cell and send measurement configuration information to the terminal device. The terminal device can determine the position of each gap according to the received measurement configuration information so as to measure the adjacent cells. The gap length is typically 6 milliseconds (ms). Wherein, the measurement configuration information comprises: the measurement of the gap repetition period (MGRP) (also called gap period), the measurement of the gap length (MGL) (simply called gap length), and the measurement of the start position (gap offset) of the gap. Optionally, the measurement configuration information may further include information such as a reporting policy of a measurement report and a to-be-measured neighbor cell list.
In order to improve the cell measurement efficiency, the terminal device should be able to receive the reference signals of all the 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 each neighbor cell transmitting the reference signal is determined according to the timing of the corresponding neighbor cell. Therefore, the gap determined by the terminal device according to the measurement configuration information may not include the time domain positions of the reference signals of some neighboring cells to be measured, so that the terminal device cannot receive the reference signals of the neighboring cells to be measured, and further cannot complete measurement of all the cells to be measured.
Disclosure of Invention
The application provides a measurement configuration method and equipment, which are used for improving the probability that a measurement gap covers all reference signals of adjacent cells to be measured in the process of cell measurement of terminal equipment and improving the success rate and efficiency of cell measurement of the terminal equipment.
In a first aspect, an embodiment of the present application provides a measurement configuration method, which may be applied in various scenarios in which inter-frequency/inter-system measurement needs to be performed in a gap measurement manner in the communication system shown in fig. 2. The method comprises the following steps: the base station sends first measurement configuration information to the terminal equipment; the first measurement configuration information is used to indicate that a gap length value used when the terminal device performs cell measurement is adjusted from G1 to G2, wherein G2 is greater than G1. For example, the base station may send the first measurement configuration information after determining that the terminal device cell measurement fails, or when receiving an instruction, or within a time window, or when the terminal device includes an NR cell in a neighboring cell to be measured.
In the method, after determining that the cell measurement of the terminal equipment fails, the base station indicates the terminal equipment to use a longer gap when the cell measurement is subsequently carried out. Therefore, in the subsequent cell measurement process, the probability that the terminal equipment receives the reference signals of all the to-be-measured adjacent cells in the gap can be improved, and therefore, the method can improve the success rate and the efficiency of the cell measurement of the terminal equipment.
In one possible design, the first measurement configuration information is further used to indicate that a start position value of gap is adjusted from P1 to P2, where P2> P1.
Since the terminal device fails the previous cell measurement, and even if the terminal device has received a part of the reference signals to be measured in the previous gap position, the terminal device has already measured the part of the reference signals. Through the design, the base station can migrate the position of the gap and remove the gap position part before adjustment when the gap is reconfigured, so that the terminal equipment can avoid the reduction of the service throughput rate of the terminal equipment caused by the fact that the original gap position part is occupied for cell measurement.
In one possible design, before the base station sends the first measurement configuration information to the terminal device, the base station may determine G2 by:
the method comprises the following steps: the base station determines G2 according to a value T1 of a reference signal sending period of a to-be-measured adjacent cell, wherein T1 is greater than G1;
the second method comprises the following steps: the base station determines G2 from G1.
In the first method, the gap length newly configured by the base station for the terminal device is adjusted based on the transmission period of the reference signal of the neighboring cell to be measured, so that the method can improve the probability that the adjusted gap covers the reference signals of all the neighboring cells to be measured, that is, the probability that the terminal device can receive the reference signals of all the neighboring cells in the adjusted gap, thereby improving the success rate and efficiency of cell measurement of the terminal device.
In the second method, the base station may increase the length of the gap based on the original length of the gap. Since the second embodiment determines G2 according to the reference signal transmission period of the neighboring cell, however, when the reference signal transmission period of the neighboring cell is large (e.g., T1 is equal to 40, 80, or 160), the gap determined by the second embodiment is too long, which further results in a large loss of the traffic throughput of the terminal device. Obviously, the method can improve the probability that the adjusted gap covers the reference signals of all the adjacent cells to be measured, thereby improving the success rate and efficiency of cell measurement of the terminal equipment and ensuring the service throughput rate of the terminal equipment.
In one possible design, when the base station determines G2 using method one, G2 conforms to the formula: g2 ═ T1+ m, m being an integer greater than or equal to 0. In order to prevent time jitter and improve the traffic throughput of the terminal equipment as much as possible, m is 1.
In one possible design, when the base station determines G2 using method two, G2 conforms to the formula: g2 ═ k (G1-1) + r, or according to the formula: g2 ═ k × G1+ r, where k is an integer greater than 2 and r is an integer greater than or equal to 0. Illustratively, k is equal to 2, 4, 8, 16, 32. In order to prevent time jitter and to maximize the traffic throughput of the terminal device, r is 1.
In one possible design, before the base station sends the first measurement configuration information to the terminal device, the base station determines G2 according to a value T1 of a reference signal sending period of a neighboring cell and a starting position difference of gap, where T1> G1, and the starting position difference of the gap is P2-P1.
By the design, the base station can adjust the length of the gap on the basis of the reference signal transmission period of the adjacent cell to be measured, and remove the length and the position of the gap before adjustment from the length and the initial position of the gap. Obviously, the design can improve the probability that the adjusted gap covers the reference signals of all the adjacent cells to be measured, thereby improving the success rate and efficiency of cell measurement of the terminal equipment, ensuring the service throughput rate of the terminal equipment,
in one possible design, when the base station determines G2 through the above design, G2 conforms to the formula: g2 ═ T1- (P2-P1) + n, n being an integer greater than or equal to 0. In order to prevent time jitter and improve the traffic throughput of the terminal equipment as much as possible, n is 1. Illustratively, when the value of P1 is 6, there may be an overlap of 1ms between the adjusted gap position and the gap position before adjustment, i.e., P2-P1 is 5, in order to prevent time jitter.
In one possible design, G2 can be evenly divided by 6.
In one possible design, the base station may determine that the terminal device cell measurement failed by:
the first method is as follows: and the base station does not receive a measurement report from the terminal equipment within a set time length, and determines that the cell measurement of the terminal equipment fails.
The second method comprises the following steps: and the base station receives a measurement report from the terminal equipment, and when the base station determines that the measurement report does not contain the measurement results of all cells to be measured, the base station determines that the cell measurement of the terminal equipment fails.
The third method comprises the following steps: and the base station receives a measurement report from the terminal equipment, and when the base station determines that the measurement result of a part of cells to be measured in the measurement report is invalid, the base station determines that the cell measurement of the terminal equipment fails.
The method is as follows: and when the base station receives the notification message from the terminal equipment, determining that the cell measurement of the terminal equipment fails.
In a possible design, in order to accelerate the reporting time of the measurement report of the terminal device, so that the base station may perform cell handover or add SCG to the terminal device as soon as possible, the first measurement configuration information is further used to indicate that the reporting policy of the measurement report is a periodic trigger, or a reporting policy with a prior arrival time in the periodic trigger or event trigger is preferred.
In one possible design, the first measurement configuration information is further used to indicate that a gap period value used when the terminal device performs cell measurement is adjusted from S1 to S2, where S2> S1.
By adjusting the length (and the initial position) of the gap used by the terminal equipment for the subsequent cell measurement through the method, the probability that the adjusted gap covers all reference signals of the adjacent cells to be measured can be effectively improved, and thus the success rate and the efficiency of the cell measurement of the terminal equipment are improved. Therefore, in order to ensure the service throughput of the terminal device, the base station may further adjust the gap period used by the terminal device for subsequent cell measurement, that is, the gap period is adjusted from S1 to S2, where S2> S1. For example, S2 conforms to the formula S2 ═ a × S1, where a is an integer greater than 2. When G2 determined by the base station conforms to the formula G2 ═ k (G1-1) + r, or G2 ═ k G1+ r, the base station may set the change multiple of the period to be the same as the change multiple of the gap length, that is, a ═ k, in order to ensure that the change in the ratio of the gap length to the gap period before and after adjustment is small.
In one possible design, after the base station sends the first measurement configuration information to the terminal device, the base station may also send second measurement configuration information to the terminal device; wherein the second measurement configuration information is used to indicate: the terminal equipment stops cell measurement; or the second measurement configuration information is used to indicate at least one of:
recovering the gap length value used by the terminal equipment for cell measurement to G1;
and adjusting the gap period value used by the terminal equipment for cell measurement from S3 to S4, wherein S4> S3. Illustratively, S4 conforms to the formula: s4 ═ b × S3, where b is an integer greater than 2.
By the method, the length (and the initial position) of the gap used by the terminal equipment for subsequently measuring the cell is adjusted, so that the probability that the adjusted gap covers all reference signals of the adjacent cells to be measured can be effectively improved, and the success rate and the efficiency of the cell measurement of the terminal equipment are improved. In addition, since the gap length of the cell measurement performed by the terminal device is increased, the service throughput of the terminal device may be affected. In summary, the base station may send second measurement configuration information to the terminal device to compensate for the service throughput of the terminal device.
In a second aspect, an embodiment of the present application provides a measurement configuration method, which may be applied in various scenarios in which inter-frequency/inter-system measurement needs to be performed in a gap measurement manner in the communication system shown in fig. 2. The method comprises the following steps: the method comprises the steps that a terminal device receives first measurement configuration information sent by a base station, wherein the first measurement configuration information is used for indicating that a gap length value used by the terminal device when the terminal device conducts cell measurement is adjusted from G1 to G2, and G2 is larger than G1; and the terminal equipment determines the position of the gap according to the first measurement configuration information, and performs cell measurement in the gap, wherein the length value of the gap is G2.
In the method, after determining that the cell measurement of the terminal equipment fails, the base station indicates the terminal equipment to use a longer gap when the cell measurement is subsequently carried out. Therefore, in the subsequent cell measurement process, the probability that the terminal equipment receives the reference signals of all the to-be-measured adjacent cells in the gap can be improved, and therefore, the method can improve the success rate and the efficiency of the cell measurement of the terminal equipment.
In a third aspect, an embodiment of the present application provides a communication apparatus, including means for performing each step in any one of the above aspects.
In a fourth aspect, embodiments of the present application provide a communication device, including at least one processing element and at least one memory element, where the at least one memory element is configured to store programs and data, and the at least one processing element is configured to perform the method provided in any of the above aspects of the present application.
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 a function of performing the method provided in the first aspect of the present application, and the terminal device has a function of performing the method provided in the second aspect of the present application.
In a sixth aspect, the present application further provides a computer program, which when run on a computer, causes the computer to perform the method provided in any one of the above aspects.
In a seventh aspect, this application embodiment further provides a computer-readable storage medium, in which a computer program is stored, and when the computer program is executed by a computer, the computer is caused to execute the method provided in any one of the above aspects.
In an eighth aspect, an embodiment of the present application further provides a chip, where the chip is configured to read a computer program stored in a memory, and execute the method provided in any one of the above aspects.
In a ninth aspect, an embodiment of the present application further provides a chip system, where the chip system includes a processor, and is used to support a computer device to implement the method provided in any one of the above aspects. In one possible design, the system-on-chip further includes a memory for storing programs and data necessary for the computer device. The chip system may be formed by a chip, and may also include a chip and other discrete devices.
Drawings
FIG. 1A is a schematic diagram of gap measurement in the prior art;
FIG. 1B is a schematic diagram of the gap position provided in the embodiments of the present application;
fig. 1C is a schematic time domain position diagram of a reference signal of an NR cell according to an embodiment of the present disclosure;
fig. 1D is a schematic time domain position diagram of a reference signal of a gap and NR cell according to an embodiment of the present disclosure;
fig. 2 is an architecture diagram of a communication system according to an embodiment of the present application;
fig. 3 is a flowchart of a measurement configuration method according to an embodiment of the present application;
FIG. 4A is a schematic diagram illustrating a comparison between the first gap adjustment and the second gap adjustment provided in the embodiments of the present application;
FIG. 4B is a schematic diagram illustrating a comparison between the second gap adjustment and the second gap adjustment provided in the embodiments of the present application;
FIG. 4C is a schematic diagram showing a comparison between the third gap before and after adjustment provided by the embodiment of the present application;
FIG. 4D is a schematic diagram illustrating a fourth gap before and after adjustment according to an embodiment of the present disclosure;
FIG. 4E is a schematic diagram illustrating a fifth gap adjustment according to the embodiment of the present application;
fig. 5 is a block diagram of a communication device according to an embodiment of the present application;
fig. 6 is a block diagram of a communication device according to an embodiment of the present application.
Detailed Description
The application provides a measurement configuration method and equipment, which are used for improving the probability that a measurement gap covers all reference signals of adjacent cells to be measured in the process of cell measurement of terminal equipment and improving the cell measurement efficiency of the terminal equipment. The method and the device are based on the same technical conception, and because the principles of solving the problems of the method and the device are similar, the implementation of the device and the method can be mutually referred, and repeated parts are not repeated.
Hereinafter, some terms in the present application are explained to facilitate understanding by those skilled in the art.
1) A terminal device is a device that provides voice and/or data connectivity to a user. The terminal device may also be referred to as a User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (MT), and so on.
For example, the terminal device may be a handheld device, a vehicle-mounted device, or the like having a wireless connection function. Currently, some examples of terminal devices are: a mobile phone (mobile phone), a tablet computer, a notebook computer, a palm top computer, a Mobile Internet Device (MID), a wearable device, a Virtual Reality (VR) device, an Augmented Reality (AR) device, a wireless terminal in industrial control (industrial control), a wireless terminal in self driving (self driving), a wireless terminal in remote surgery (remote medical supply), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety (smart security), a wireless terminal in city (smart city), a wireless terminal in home (smart home), and the like.
2) And the base station is a device for accessing the terminal device to the wireless network in the communication system. The base station serves as a node in a radio access network, and may also be referred to as a network device, and may also be referred to as a Radio Access Network (RAN) node (or device).
Currently, some examples of base stations are: a gbb, an evolved Node B (eNB), a Transmission Reception Point (TRP), a Radio Network Controller (RNC), a Node B (NB), a Base Station Controller (BSC), a Base Transceiver Station (BTS), a home base station (e.g., a home evolved Node B or a home Node B, HNB), or a Base Band Unit (BBU), etc.
In addition, in a network structure, the base station may include a Centralized Unit (CU) node and a Distributed Unit (DU) node. The structure separates the protocol layers of the eNB in a Long Term Evolution (LTE) system, the functions of part of the protocol layers are controlled in the CU in a centralized way, the functions of the rest part or all of the protocol layers are distributed in the DU, and the CU controls the DU in a centralized way.
3) And the measurement configuration information is sent to the terminal equipment by the base station and is used for enabling the terminal equipment to carry out cell measurement according to the measurement configuration information. Generally, the base station may transmit the measurement configuration information through RRC signaling. The measurement configuration information may include, but is not limited to, at least one of the following measurement parameters: measurement object, neighbor cell list to be measured, or gap configuration parameters (gap period, gap length, start position of gap).
In this embodiment of the present application, after the base station sends the measurement configuration information to the terminal device once, the base station may further instruct the base station to adjust the value of the at least one measurement parameter by sending the measurement configuration information again. In this way, the base station can flexibly reconfigure the measurement parameters.
The base station instructs the base station to adjust the value of any measurement parameter through the measurement configuration information, which may include but is not limited to the following forms:
the measurement configuration information includes the value of the adjusted measurement parameter.
The measurement configuration information includes an adjustment value of the measurement parameter, and the adjustment value may be a difference between an adjusted value and a value before adjustment of the measurement parameter.
The measurement configuration information includes an adjustment indication of the measurement parameter. The terminal device may determine the value of the adjusted measurement parameter according to the adjustment instruction of the measurement parameter and in a manner agreed with the base station.
4) And the measurement report is obtained after the terminal equipment performs cell measurement and is reported to the base station.
When the terminal device receives the reference signal of at least one neighboring cell to be measured in the gap, the measurement report may include a measurement result of the terminal device on the at least one neighboring cell to be measured, or include measurement results of all neighboring cells to be measured (where the measurement result of the neighboring cell to be measured where the terminal device does not receive the reference signal is null or zero, and the measurement result of the at least one neighboring cell to be measured is an actual measurement value).
Under the condition that the terminal device does not receive the reference signal of the neighboring cell to be measured in the gap, the terminal device may not report the measurement report, or the reported measurement report is empty, or the measurement result of each neighboring cell to be measured in the reported measurement report is empty or zero.
For example, the measurement result of each neighboring cell to be measured may be a signal quality parameter of the neighboring cell to be measured. Optionally, the signal quality parameter may comprise one or more of the following parameters:
reference Signal Received Power (RSRP), signal to interference plus noise ratio (SINR), Received Signal Strength Indication (RSSI), Reference Signal Received Quality (RSRQ).
5) "and/or" describe the association relationship of the associated objects, indicating that there may be three relationships, e.g., a and/or B, which may indicate: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.
In the present application, the plural number means two or more.
In addition, it is to be understood that the terms first, second, etc. in the description of the present application are used for distinguishing between the descriptions and not necessarily for describing a sequential or chronological order.
The conventional gap measurement method will be described below.
The kinds of cell measurements include: common-frequency measurement and different-frequency/different-system measurement. The same-frequency measurement means that the adjacent cell to be measured and the serving cell of the terminal device are in the same carrier frequency point. The pilot frequency/system measurement means that the adjacent cell to be measured and the serving cell of the terminal device are not on the same carrier frequency point.
It is known that a terminal device receives and transmits signals through a radio frequency path, and a set of radio frequency paths generally work at a carrier frequency point.
In the process of initial access or RRC connection state of the terminal equipment, under the condition that a plurality of sets of radio frequency channels are arranged in the terminal equipment, the terminal equipment can use one set of radio frequency channels to adjust to the carrier frequency point of the serving cell so as to receive signals of the serving cell and send signals to the serving cell, and meanwhile, the terminal equipment can also adjust other radio frequency channels to the carrier frequency point of the adjacent cell so as to receive reference signals of the adjacent cell. Thus, the terminal equipment can carry out cell measurement under the condition of not suspending service transmission.
However, in the case that only one set of radio frequency paths is set inside the terminal device, as shown in fig. 1A, the terminal device cannot perform service transmission and cell measurement simultaneously, because the terminal device needs to adjust the radio frequency paths to the carrier frequency points of the serving cell to receive and send signals of the serving cell; and in the gap, the terminal equipment stops interacting with the serving cell and adjusts the radio frequency channel to a carrier frequency point of the adjacent cell so as to receive a reference signal of the adjacent cell.
And the base station transmits the measurement configuration information to the terminal equipment so as to configure the gap measurement of the terminal equipment. In the gap configuration parameters in the measurement configuration information, the value of the gap period (i.e., MGRP) may be 40ms, 80ms, or the like; the value of gap length (MGL) is 6ms at most; the range of the starting position (gapoffset) of gap can be 0-39, or 0-79, etc. The terminal device may calculate the time domain position of the gap according to the above gap configuration parameters, as shown in fig. 1B. Specifically, the terminal device may calculate the time domain position of the gap with reference to the following formula:
T=MGRP/10;
SFN mod T=FLOOR(gapoffset/10);
subframe=gapoffset mod 10;
the SFN is a system frame number of a serving cell of the terminal device, and the subframe is a subframe in the system frame of the SFN.
In order to ensure the cell measurement efficiency of the terminal device and improve the success rate of cell measurement of the terminal device, the terminal device should be able to receive the reference signals of all the neighboring cells to be measured in the gap configured for the terminal device by the base station, so that the terminal device can realize the measurement of all the neighboring cells to be measured.
However, the time domain position of the gap is determined by the terminal device according to the timing of the serving cell, and the time domain position of the reference signal of each neighbor cell is determined according to the timing of the corresponding neighbor cell.
For example, The fourth generation (The 4)thGeneration, 4G) communication technology for Long Term Evolution (LTE) cell referenceA signal, a Cell Reference Signal (CRS), is uniformly distributed on each subframe.
As another example, see FIG. 1C, fifth generation (The 5)thGeneration, 5G) communication technology, a Synchronization Signal Block (SSB), which is a reference signal of a New Radio (NR) cell, is sent periodically, and a plurality of SSBs may be sent in a period, but all the SSBs are concentrated in a certain time window in the period to form an SSB burst. The SSB period may be 5ms, 10ms, 20ms, 40ms, 80ms, or 160ms, and the SSB periods of different NR cells may also be different. For example, assuming an SSB period of 20ms, SSB bursts may be transmitted concentrated in the first or second 5 ms.
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 positions of the reference signals of some neighboring cells to be measured, such as the gap shown by the dashed line box in fig. 1D, which may cause the terminal device to fail to receive the reference signals of these neighboring cells to be measured in the gap, and thus cannot complete the measurement of all the cells to be measured, thereby causing the cell measurement of the terminal device to fail.
In order to solve the above problems, the present application provides a measurement configuration method and apparatus. In the scheme provided by the embodiment of the application, the base station can instruct the terminal device to use a longer gap when performing the subsequent cell measurement. Therefore, in the subsequent cell measurement process, the probability that the terminal equipment receives the reference signals of all the to-be-measured adjacent cells in the gap can be improved, and therefore, the method can improve the success rate and the efficiency of the cell measurement of the terminal equipment.
The embodiments of the present application will be described in detail below with reference to the accompanying drawings.
Fig. 2 shows an architecture of a possible communication system to which the measurement configuration method provided in the embodiment of the present application is applicable. Referring to fig. 2, the communication system includes: a base station 201 (e.g., base station 201a, base station 201b, base station 201c, etc. in the figure), and a terminal apparatus 202.
The base station 201 is responsible for providing radio access related services for the terminal device 202, and implements radio physical layer functions, resource scheduling and radio resource management, Quality of Service (QoS) management, radio access control, and mobility management (e.g., cell reselection and handover) functions.
Each base station 201 is responsible for managing at least one cell. As shown, 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.
In the communication system, each cell provides access service for terminal equipment by using corresponding carrier frequency points. It should be noted that the frequency points used by different cells may be the same or different. In addition, the communication technology used by each cell is not limited in the present application, and the communication technologies used by different cells may be the same or different. For example, cell a, cell B, cell C, and cell D are LTE cells using 4G communication technology; or the cell A, the cell B, the cell C and the cell D are all NR cells using the 5G communication technology; or part of the cells A, B, C and D are LTE cells and part of the cells are NR cells.
The terminal device 202 is a device that accesses a network through a cell managed by the base station 201.
The base station 201 and the terminal device 202 are connected through a Uu interface, so that communication between the terminal device 202 and the base station 201 is realized.
In addition, The architecture shown in fig. 2 can be applied to various communication scenarios, for example, a fifth Generation (5G) communication system, a future sixth Generation communication system and other communication systems that evolve, a Long Term Evolution (Long Term Evolution, LTE) communication system, a vehicle to anything (V2X), a Long Term Evolution-vehicle networking (LTE-V), a vehicle to vehicle (V2V), a vehicle networking, a Machine Type communication (Machine Type Communications, MTC), an internet of things (MTC), an IoT, a Long Term Evolution-Machine to Machine (LTE-Machine to Machine, LTE-M), a Machine to Machine (M2M), and other communication scenarios.
The measurement configuration method provided in the embodiment of the present application is applicable to various scenarios in which inter-frequency/inter-system measurement needs to be performed in a gap measurement manner in a communication system as shown in fig. 2, for example, an LTE measurement scenario in a 4G communication technology, and the following scenarios in a 5G communication technology that support a Dual Connectivity (DC) technology: EN-DC (EUTRA-NR Dual Connectivity) scenarios, NE-DC (NR-EUTRA Dual Connectivity), NR-DC, and non-DC scenarios.
It is assumed that the terminal device 202 accesses a cell a (cell a is a serving cell) managed by the base station 201a, and a cell B, a cell C, and a cell D are neighbor cells determined by the base station 201a for the terminal device 202.
For example, in an LTE measurement scenario and a non-DC scenario, 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 neighbor cell list 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, performs cell measurement in the gap, and reports a measurement report to the base station 201a after the measurement is completed; the base station 201a switches the terminal device to the cell with better signal quality according to the signal quality parameters of each cell in the measurement report.
For another example, in each scenario supporting the dual connectivity technology, cell a is a primary cell (PCell) of terminal device 202, and base station 201a is a primary base station of 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 to-be-measured neighbor cell list (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, performs cell measurement in the gap, and reports a measurement report to the base station 201a after the measurement is completed; the base station 201a configures a secondary cell (SCell) for the terminal device 202 according to the signal quality parameter of each cell in the measurement report, thereby implementing addition of a Secondary Cell Group (SCG) to the terminal device 202.
In order to improve the success rate and efficiency of cell measurement of a terminal device, the embodiment of the application provides a measurement configuration method. The method can be applied to various scenarios in which inter-frequency/inter-system measurement needs to be performed in a gap measurement manner in the communication system shown in fig. 2. The base station indicates the terminal equipment to use longer gap when carrying out cell measurement subsequently through the measurement configuration information, namely indicates that the value of the gap length is adjusted from G1 to G2, and G2> G1. Therefore, in the subsequent cell measurement process, the probability that the terminal equipment receives the reference signals of all the to-be-measured adjacent cells in the gap can be improved, and therefore, the method can improve the success rate and the efficiency of the cell measurement of the terminal equipment. For example, the base station may send the first measurement configuration information after determining that the terminal device cell measurement fails, or determining that an NR cell is included in a to-be-measured neighbor cell of the terminal device, or upon receiving an instruction, or within a time window.
The following describes a measurement configuration method provided in an embodiment of the present application with reference to a flowchart shown in fig. 3. It should be noted that the method flowchart shown in fig. 3 does not limit the measurement configuration method provided in the present application, and the measurement configuration method provided in the present application may include more or less steps than the method shown in fig. 3. In addition, each numerical value referred to in the embodiments of the present application is a value based on the unit of measurement parameter such as the length of the gap and the length of the gap period being ms.
S301: the base station sends first measurement configuration information to the terminal equipment, wherein the first measurement configuration information is used for indicating that a gap length value used by the terminal equipment when the terminal equipment carries out cell measurement is G1. The terminal device receives the first measurement configuration information from the base station.
For example, the first measurement configuration information may be conventional measurement configuration information, which may include gap configuration parameters (gap period, gap length, and start position of gap), and may further include information such as a neighboring cell list to be measured, a reporting policy of a measurement report, and the like. For example, the first measurement configuration information may be measgapcfonfig signaling or measConfig signaling.
The length of the initial gap configured for the terminal device by the base station through the first measurement configuration information may be, but is not limited to, 6 ms. In the following description and examples of embodiments of the present application, G1 ═ 6 is merely exemplified.
S302: and the terminal device determines the position of the gap used in the current cell measurement according to the first measurement configuration information, as shown in fig. 1B, and performs the cell measurement within the determined gap. Wherein the length of the gap takes on the value G1, the period of the gap takes on the value S1, and the initial position of the gap takes on the value P1.
In this embodiment, the performing, by the terminal device, cell measurement in a gap includes: and the terminal equipment receives the reference signal of the adjacent cell to be measured in the gap and determines the measurement result of the adjacent cell to be measured.
It should be noted that, reference signal time domain positions of all neighboring cells to be measured may not be covered in the gap, for example, as shown in fig. 1D, and therefore, in the gap, the terminal device may receive only reference signals of some cells to be measured, or may not receive reference signals of all cells to be measured, and at this time, the terminal device fails to measure the cells.
In case of cell measurement failure of the terminal device, the terminal device may notify the base station by, but not limited to:
the first method is as follows: the terminal device may not send the measurement report to the base station according to a reporting policy of the measurement report, or according to a protocol or an agreement with the base station.
The second method comprises the following steps: the terminal device may send a measurement report carrying measurement results of part of the neighboring cells to be measured to the base station.
The third method comprises the following steps: the terminal device may send a measurement report carrying measurement results of all neighboring cells to be measured to the base station, and the measurement result of the neighboring cell to be measured that is not measured by the terminal device in the measurement report is invalid. For example, the measurement result of the cell to be measured that is not measured by the terminal device may be null, zero, or an indicator indicating that the measurement result is invalid.
The method is as follows: the terminal device may send a notification message to the terminal device, where the notification message is used to notify the base station to: the terminal device cell measurement fails.
S303: and when the terminal equipment informs that the cell measurement of the base station fails in the second mode or the third mode, the terminal equipment sends a first measurement report to the base station. The base station receives the first measurement report from the terminal device. As shown, this step is an optional step.
When the terminal equipment adopts the second mode, the first measurement report comprises measurement results of part of adjacent cells to be measured; when the terminal device adopts the third mode, the first measurement report includes measurement results of all cells to be measured, and only the measurement result of the neighboring cell to be measured by the terminal device is valid.
S304: and the base station determines that the cell measurement of the terminal equipment fails.
Corresponding to the manner in which the terminal device notifies the base station of the cell measurement failure in S302, the base station may determine that the terminal device has the cell measurement failure by:
the first method is as follows: and the base station does not receive a measurement report from the terminal equipment within a set time length, and determines that the cell measurement of the terminal equipment fails.
The second method comprises the following steps: the base station receives a first measurement report from the terminal equipment, and when the base station determines that the first measurement report does not contain the measurement results of all cells to be measured, the base station determines that the cell measurement of the terminal equipment fails.
The third method comprises the following steps: the base station receives a first measurement report from the terminal equipment, and when the base station determines that the measurement result of a part of cells to be measured in the first measurement report is invalid, the base station determines that the cell measurement of the terminal equipment fails.
The method is as follows: and when the base station receives the notification message from the terminal equipment, determining that the cell measurement of the terminal equipment fails.
S304 a: the base station adjusts the gap length used by the terminal equipment for the subsequent cell measurement, and determines that the gap length used by the terminal equipment for the subsequent cell measurement is G2, wherein G2 is greater than G1.
Optionally, in this step, the base station may further adjust a starting position of a gap used by the terminal device when performing subsequent cell measurement, and determine a starting position value P2 of the gap used by the terminal device when performing subsequent cell measurement, where P2 is greater than P1. Since the terminal device fails the previous cell measurement, and even if the terminal device has received a part of the reference signals to be measured in the previous gap position, the terminal device has already measured the part of the reference signals. Therefore, the base station can move the position of the gap when the gap is reconfigured, and remove the gap position part before adjustment, so that the terminal equipment can avoid the reduction of the service throughput rate of the terminal equipment caused by the cell measurement by occupying the original gap position part. After the terminal device uses the adjusted gap to perform cell measurement subsequently, the measurement result of the current neighboring cell to be measured and part of the measurement results of the neighboring cells to be measured obtained in the previous cell measurement may be included in the measurement report and reported to the base station.
For example, when the gap length value G1 before adjustment is 6, P2 may conform to the formula: P2-P1 ═ 6.
Illustratively, to prevent time jitter, there may be an overlap of 1ms between the adjusted gap position and the gap position before adjustment, i.e., P2-P1 is 5.
In S304a, the base station may determine G2 through, but not limited to, the following four embodiments, depending on the manner in which the base station determines G2.
The first embodiment: the base station obtains a value of G2 greater than the value of G1 in the stored gap length values.
The second embodiment: and the base station determines G2 according to the value T1 of the reference signal sending period of the adjacent cell to be measured, wherein T1> G1.
Optionally, in this embodiment, G2 determined by the base station may conform to the following formula: g2 ═ T1+ m, m being an integer greater than or equal to 0. Illustratively, the value of m may be 0, 1, 2, and the like. To prevent time jitter, the value of m may be an integer greater than 0.
Example 1: when G1 is 6, T1 is 20, m is 1, and the value of gap period S1 is 40, the gap length adjustment pair is as shown in fig. 4A.
Example 2: on the basis of the gap length adjustment scheme shown in example 1, the base station may adjust the value of the start position of the gap from 0 to 5, and the pair of the gap length and the start position before and after adjustment is shown in fig. 4B.
In the second embodiment, the gap length reconfigured by the base station for the terminal device is adjusted based on the transmission period of the reference signal of the neighboring cell to be measured, so that the probability that the adjusted gap covers the reference signals of all the neighboring cells to be measured can be improved by this embodiment, that is, the probability that the terminal device can receive the reference signals of all the neighboring cells in the adjusted gap can be improved, thereby improving the success rate and efficiency of cell measurement of the terminal device, as shown in fig. 4A and 4B.
Third embodiment: and the base station determines G2 according to the gap length value G1 configured at the previous time.
Optionally, in this embodiment, G2 determined by the base station may conform to any one of the following formulas: g2 ═ k (G1-1) + r; g2 ═ k × G1+ r. Wherein k is an integer greater than 2, and r is an integer greater than or equal to 0. Illustratively, k has a value of 2, 4, 8, 16, 32, etc. The value of r can be 0, 1, 2, etc. To prevent time jitter, the value of m may be an integer greater than 0.
Example 3: when G1 is 6, k is 2, r is 1, and the value of the gap period S1 is 40, the gap length adjustment is performed before and after the gap length adjustment as shown in fig. 4C.
Example 4: on the basis of the gap length adjustment scheme shown in example 3, the base station may adjust the value of the start position of the gap from 0 to 5, and the pair of the gap length and the start position before and after adjustment is shown in fig. 4D.
In a third embodiment, the base station may increase the length of the gap based on the original gap length. Since the second embodiment determines G2 according to the reference signal transmission period of the neighboring cell, however, when the reference signal transmission period of the neighboring cell is large (e.g., T1 is equal to 40, 80, or 160), the gap determined by the second embodiment is too long, which further results in a large loss of the traffic throughput of the terminal device. Obviously, this embodiment can improve the probability that the adjusted gap covers the reference signals of all the neighboring cells to be measured, thereby improving the success rate and efficiency of cell measurement of the terminal device, as shown in fig. 4C and 4D, and ensuring the service throughput rate of the terminal device.
Fourth embodiment: when the starting position value of the gap used by the base station for performing subsequent cell measurement on the terminal device is adjusted from P1 to P2, the base station may determine G2 according to a value T1 of a reference signal transmission period of a neighboring cell and a starting position difference value of the gap, where T1> G1, and the starting position difference value of the gap is P2-P1.
Optionally, in this embodiment, G2 determined by the base station may conform to the formula: g2 ═ T1- (P2-P1) + n, n being an integer greater than or equal to 0. Illustratively, the value of n may be 0, 1, 2, and the like. To prevent time jitter, the value of m may be an integer greater than 0.
Example 5: when G1, T1, n, P2-P1, and the gap period S1 equals 40, the base station may adjust the start position value of gap from 0 to 5, and the pair of the gap length and the start position before and after adjustment is as shown in fig. 4E.
In the fourth embodiment, the base station may adjust the length of the gap on the basis of the transmission period of the reference signal of the neighboring cell to be measured, and remove the length and the position of the gap before adjustment from the length and the starting position of the gap. Obviously, this embodiment can improve the probability that the adjusted gap covers the reference signals of all the neighboring cells to be measured, thereby improving the success rate and efficiency of cell measurement of the terminal device, and ensuring the service throughput of the terminal device, as shown in fig. 4E.
It should be noted that in any of the above embodiments, the G2 determined by the base station may be evenly divided by 6. In the LTE system, the gap length used in the cell measurement of the terminal device is 6ms, and in the embodiment of the present application, the gap length is set to be a multiple of 6 when the gap length is adjusted, so that multiplexing of the LTE cell measurement can be realized.
In the above four embodiments, the length (and the initial position) of the gap used by the terminal device for performing the cell measurement subsequently is adjusted by the above method, so that the probability that the adjusted gap covers the reference signals of all the neighboring cells to be measured can be effectively improved, and the success rate and the efficiency of the cell measurement of the terminal device are improved. Therefore, in order to ensure the service throughput of the terminal device, the base station may further adjust the gap period used by the terminal device for subsequent cell measurement, that is, the gap period is adjusted from S1 to S2, where S2> S1. For example, S2 conforms to the formula S2 ═ a × S1, where a is an integer greater than 2. When the base station determines the gap length G2 using the third embodiment, in order to ensure that the change in the ratio of the gap length to the gap period before and after adjustment is small, the base station may set the period to be the same as the change in the gap length, i.e., a ═ k.
In addition, in order to accelerate the reporting time of the measurement report of the terminal device, so that the base station can perform cell switching or add SCG to the terminal device as soon as possible, the base station may further adjust the reporting policy of the measurement report to be: a periodic trigger, or a reporting policy with a preferred arrival time prior in the periodic trigger or event trigger.
S305: and the base station sends second measurement configuration information to the terminal equipment. The first measurement configuration information is used to indicate that a gap length value used when the terminal device performs cell measurement is adjusted from G1 to G2, wherein G2 is greater than G1. The terminal device receives the second measurement configuration information from the base station.
Wherein the second measurement configuration information may indicate that the length value of the gap is adjusted from G1 to G2 by, but not limited to:
the first method is as follows: the second measurement configuration information includes a gap length value G2.
The second method comprises the following steps: the second measurement configuration information includes an adjustment value of the gap length, which is a difference between G2 and G1. In this way, the terminal device may determine G2 according to the adjustment value and the gap length G1 before adjustment after receiving the second measurement configuration information from the base station.
The third method comprises the following steps: the second measurement configuration information includes an adjustment indication of the gap length, where the adjustment indication is used to indicate a calculation manner of G2 or G2. In this way, the terminal device may determine or calculate G2 according to the adjustment indication after receiving the second measurement configuration information from the base station.
When the base station further determines in S304a that the start position value of the gap is adjusted to P2, correspondingly, the second measurement configuration information is further used to indicate that the start position value of the gap is adjusted from P1 to P2.
Similar to the second measurement configuration information indicating that the value of the gap length is adjusted from G1 to G2, the second measurement configuration information may also indicate that the value of the start position of the gap is adjusted from P1 to P2 by, but not limited to:
the first method is as follows: the second measurement configuration information includes a start position value P2 of gap.
The second method comprises the following steps: the second measurement configuration information includes an adjustment value of the start position of gap, which is a difference between P2 and P1. Thus, after receiving the second measurement configuration information from the base station, the terminal device may determine P2 according to the adjustment value and the starting position value P1 of gap before adjustment.
The third method comprises the following steps: the second measurement configuration information includes an adjustment indication of a start position of a gap, where the adjustment indication is used to indicate a calculation manner of P2 or P2. In this way, the terminal device may determine or calculate P2 according to the adjustment indication after receiving the second measurement configuration information from the base station.
When the base station further determines in S304a that the value of the gap period is adjusted to S2, correspondingly, the second measurement configuration information is further used to indicate that the value of the gap period is adjusted from S1 to S2. The second measurement configuration information may also, but is not limited to, indicate that the gap period value is adjusted from S1 to S2 by:
the first method is as follows: the second measurement configuration information includes a gap period value S2.
The second method comprises the following steps: the second measurement configuration information includes an adjustment value of the gap period, where the adjustment value is a difference between S2 and S1, or a quotient of S2 divided by S1. In this way, after receiving the second measurement configuration information from the base station, the terminal device may determine S2 according to the adjustment value and the gap period value before adjustment S1.
The third method comprises the following steps: the second measurement configuration information includes an adjustment indication of the gap period, where the adjustment indication indicates a calculation manner of S2 or S2. In this way, the terminal device may determine or calculate S2 according to the adjustment indication after receiving the second measurement configuration information from the base station.
When the base station further 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 a periodic trigger, or a reporting policy with a preferred arrival time prior in the periodic trigger or event trigger.
Optionally, the second measurement configuration information may be multiple information, for example, the second measurement configuration information may include 4 signaling, which are respectively used to indicate a gap length, a gap period, a start position of the gap, and adjustment of a reported measurement of a measurement result. For another example, the second measurement configuration information may include two signaling, where signaling 1 is used to indicate the gap length, the gap period, and the adjustment of the start position of the gap, and signaling 2 is used to indicate the adjustment of the measurement result reporting measurement.
For example, the signaling 1 may be measGapConfig signaling, and the second measurement configuration information carrying the signaling may be MeasConfig signaling. For example, the description of the second measurement configuration information is described as follows:
wherein, in the above description, gapOffset is the starting position of gap, mgl is the length of gap, and mgrp is the period of gap. A value X is added to the value of mgl, and the specific value of X is P2 in this embodiment.
Illustratively, the signaling 2 may be reportconfiginter rat, and the signaling is described as follows:
s306: and the terminal equipment determines the position of the gap used by the next cell measurement according to the second measurement configuration information, and performs the cell measurement in the determined gap, wherein the length value of the gap is G2. The position of the gap determined by the terminal device may refer to the adjusted position of the gap shown in fig. 4A-4E.
When the second measurement configuration information only indicates that the gap length is adjusted, the terminal device may determine the position of the gap according to the start position and the gap period of the gap configured by the base station at the time of the last cell measurement and the gap length G2 indicated by the second measurement configuration information.
When the second measurement configuration information further indicates to adjust any other gap configuration parameter (e.g., a start position of a gap or a gap period), the terminal device may determine the position of the gap according to one configuration parameter that has not been adjusted during the last cell measurement, the gap length G2 indicated by the second measurement configuration information, and a value of another gap configuration parameter.
When the second measurement configuration information further indicates to adjust all other gap configuration parameters (including the start position and the gap period of the gap), the terminal device may determine the position of the gap according to the value of each gap configuration parameter indicated by the second measurement configuration information.
In this step, the process of the terminal device performing cell measurement in the gap is the same as S302, so the process of the terminal device performing cell measurement may refer to the description of S302 above, and is not described herein again.
In addition, the cell measurement may be successful or may fail for various reasons. When the cell measurement of the terminal equipment is successful, the terminal equipment sends a second measurement report to the base station through S307; when the cell measurement of the terminal device fails, the terminal device may also notify the base station that the cell measurement of this time fails in the 4-step method described in S302.
S307: and the terminal equipment sends a second measurement report to the base station. The base station receives the second measurement report from the terminal device. As shown, this step is an optional step.
And when the second measurement configuration information is also used for indicating a reporting strategy of a measurement report, the terminal equipment reports the second measurement report according to the reporting strategy.
S308: and the base station determines that the current cell measurement of the terminal equipment is successful according to the second measurement report.
Optionally, the base station may also determine that the current cell measurement of the terminal device fails in the same manner as in S304.
S309: the base station may send third measurement configuration information to the terminal device after S305 or after S308. And the base station of the terminal equipment receives the third measurement configuration information.
In one embodiment, the third measurement configuration information is used to indicate: and the terminal equipment stops cell measurement. Optionally, the third measurement configuration information may specifically instruct the terminal device to stop performing cell measurement within a set time period; or the terminal equipment stops cell measurement within a set time period after receiving the third measurement configuration information.
In another embodiment, the third measurement configuration information is used to indicate at least one of:
recovering the gap length value used by the terminal equipment for cell measurement to G1;
and adjusting the gap period value used by the terminal equipment for cell measurement from S3 to S4, wherein S4> S3. Illustratively, S4 conforms to the formula: s4 ═ b × S3, where b is an integer greater than 2. If the value of the gap period used when the terminal device is instructed to perform cell measurement again in the second measurement configuration information is adjusted to S2, S3 is S2, otherwise S3 is S1.
As can be seen from the above description, since the second measurement configuration information sent in S305 indicates that the gap length used when the terminal device performs cell measurement again is adjusted from G1 to G2, the success rate of the terminal device performing cell measurement through S306 is high, and in addition, since the gap length of the terminal device performing cell measurement is increased, the traffic throughput of the terminal device may be affected. In summary, according to any of the above embodiments, the service throughput rate of the terminal device after S307 can be ensured or improved.
S310: in the case that the third measurement configuration information is the first embodiment, the terminal device does not perform cell measurement any more. In the case that the third measurement configuration information is the second embodiment, the terminal device determines the position of the gap used in the next cell measurement again according to the gap length and/or the gap period indicated by the third measurement configuration information, and performs the cell measurement within the determined gap.
In this step, the process of the terminal device performing cell measurement within the determined gap is the same as S302, so the process of the terminal device performing cell measurement may refer to the description of S302 above, and is not described herein again.
Of course, after the terminal device performs cell measurement, the base station may also be notified of the measurement result of the terminal device on the neighboring cell to be measured.
It should be further noted that, in this embodiment of the present application, the sending, by the base station, each measurement configuration information to the terminal device, and the sending, by the terminal device, a measurement report or a notification message to the base station may be implemented by RRC signaling, which is not limited in this application.
The embodiment of the application provides a measurement configuration method. In the method, after determining that the cell measurement of the terminal equipment fails, the base station indicates the terminal equipment to use a longer gap when the cell measurement is subsequently carried out. Therefore, in the subsequent cell measurement process, the probability that the terminal equipment receives the reference signals of all the to-be-measured adjacent cells in the gap can be improved, and therefore, the method can improve the success rate and the efficiency of the cell measurement of the terminal equipment.
Based on the same technical concept, the embodiment of the present application further provides a communication device, the structure of which is shown in fig. 5, and the communication device includes a communication unit 501 and a processing unit 502. The communication apparatus may be applied to a base station or a terminal device in the communication system shown in fig. 2, and may implement the measurement configuration method shown in fig. 3 above. The functions of the various units in the apparatus 500 are described below:
wherein the communication unit 501 functions to receive and transmit signals. The communication unit 501 may be implemented by a radio frequency circuit, wherein the radio frequency circuit includes an antenna.
The function of the processing unit 502 when the communication device 500 is applied to a base station will be described below.
A processing unit 502, configured to send first measurement configuration information to the terminal device through the communication unit 501; the first measurement configuration information is used to indicate that a gap length value used when the terminal device performs cell measurement is adjusted from G1 to G2, wherein G2 is greater than G1.
In one embodiment, the first measurement configuration information is further used to indicate that the value of the start position of the gap is adjusted from P1 to P2, wherein P2> P1.
In one embodiment, the processing unit 502 is further configured to:
before the first measurement configuration information is sent to the terminal equipment through the communication unit 501, determining G2 according to a value T1 of a reference signal sending period of a neighbor cell to be measured, wherein T1> G1; or according to G1, determine G2.
In one embodiment, G2 conforms to the formula: g2 ═ T1+ m, m being an integer greater than or equal to 0.
In one embodiment, G2 conforms to the formula: g2 ═ k (G1-1) + r, or according to the formula: g2 ═ k × G1+ r, where k is an integer greater than 2 and r is an integer greater than or equal to 0.
In one embodiment, the processing unit 502 is further configured to:
before the first measurement configuration information is sent to the terminal device through the communication unit 501, G2 is determined according to a value T1 of a reference signal sending period of a neighboring cell and a starting position difference value of gap, wherein T1> G1, and the starting position difference value of gap is P2-P1.
In one embodiment, G2 conforms to the formula: g2 ═ T1- (P2-P1) + n, n being an integer greater than or equal to 0.
In one embodiment, P2-P1 is 5.
In one embodiment, G2 is divisible by 6.
In an embodiment, the first measurement configuration information is further used to indicate that the reporting policy of the measurement report is a periodic trigger, or a reporting policy with a preferred arrival time prior in the periodic trigger or event trigger.
In one embodiment, the first measurement configuration information is further used to indicate that a gap period value used when the terminal device performs cell measurement is adjusted from S1 to S2, where S2> S1.
In one embodiment, S2 conforms to the formula: s2 ═ a × S1, where a is an integer greater than 2.
In one embodiment, the processing unit 502 is further configured to:
after the first measurement configuration information is sent to the terminal device through the communication unit 501, sending second measurement configuration information to the terminal device through the communication unit 501;
wherein the second measurement configuration information is used to indicate: the terminal equipment stops cell measurement; or
The second measurement configuration information is used to indicate at least one of:
recovering the gap length value used by the terminal equipment for cell measurement to G1;
and adjusting the gap period value used by the terminal equipment for cell measurement from S3 to S4, wherein S4> S3.
In one embodiment, S4 conforms to the formula: s4 ═ b × S3, where b is an integer greater than 2.
The following describes the functions of the processing unit 502 when the communication apparatus 500 is applied to a terminal device.
A processing unit 502, configured to receive, by the communication unit 501, first measurement configuration information sent by a base station, where the first measurement configuration information is used to instruct the terminal device to adjust a gap length value used when performing cell measurement from G1 to G2, where G2 is greater than G1; and determining the position of the gap according to the first measurement configuration information, and performing cell measurement in the gap, wherein the length value of the gap is G2.
It should be noted that, in the above embodiments of the present application, the division of the module is schematic, and is only a logical function division, and in actual implementation, there may be another division manner, and in addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or may exist alone physically, or two or more units are integrated in one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
Based on the same technical concept, the embodiment of the present application further provides a communication device, which may be applied to a base station or a terminal device in the communication system shown in fig. 2, and may implement the measurement configuration method shown in fig. 3. Referring to fig. 6, the communication network apparatus includes: a transceiver 601, a processor 602, and a memory 603. Wherein, the transceiver 601, the processor 602 and the memory 603 are connected to each other.
Optionally, the transceiver 601, the processor 602, and the memory 603 are connected to each other through a bus 604. The bus 604 may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 6, but this is not intended to represent only one bus or type of bus.
The transceiver 601 is configured to receive and transmit signals, so as to implement communication interaction with other devices.
The processor 602 is configured to implement the measurement configuration method in the embodiment shown in fig. 3.
In an embodiment, when the communication device 600 is applied to a base station, the processor 602 is specifically configured to:
sending first measurement configuration information to the terminal device through the transceiver 601; the first measurement configuration information is used to indicate that a gap length value used when the terminal device performs cell measurement is adjusted from G1 to G2, wherein G2 is greater than G1. For specific description, reference may be made to the related description in the above embodiments, which is not repeated herein.
In another embodiment, when the communication device 600 is applied to a terminal device, the processor 602 is specifically configured to:
receiving, by the transceiver 601, first measurement configuration information sent by a base station, where the first measurement configuration information is used to indicate that a gap length value used when the terminal device performs cell measurement is adjusted from G1 to G2, where G2 is greater than G1; and determining the position of the gap according to the first measurement configuration information, and performing cell measurement in the gap, wherein the length value of the gap is G2. Specifically, reference may be made to the description in the above embodiments, which are not repeated herein.
The memory 603 is used for storing program instructions, data, and the like. In particular, the program instructions may include program code comprising computer operational instructions. The memory 603 may include a Random Access Memory (RAM) and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory. The processor 602 executes the program instructions stored in the memory 603, and uses the data stored in the memory 603 to implement the above functions, thereby implementing the measurement configuration method provided in the above embodiments.
Based on the above embodiments, the embodiments of the present application further provide a computer program, which, when running on a computer, causes the computer to execute the measurement configuration method provided in the embodiment shown in fig. 3.
Based on the above embodiments, 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, the computer program causes the computer to execute the measurement configuration method provided by the embodiment shown in fig. 3.
Based on the above embodiments, the embodiments of the present application further provide a chip, where the chip is used to read a computer program stored in a memory, and implement the measurement configuration method provided in the embodiment shown in fig. 3.
Based on the foregoing embodiments, the present application provides a chip system, where the chip system includes a processor, and is configured to support a computer device to implement the functions related to the base station or the terminal device in the embodiment shown in fig. 3. In one possible design, the system-on-chip further includes a memory for storing programs and data necessary for the computer device. The chip system may be constituted by a chip, or may include a chip and other discrete devices.
In summary, the present application provides a measurement configuration method and apparatus. In the scheme, after determining that the cell measurement of the terminal equipment fails, the base station indicates the terminal equipment to use a longer gap when the cell measurement is subsequently performed. Therefore, in the subsequent cell measurement process, the probability that the terminal equipment receives the reference signals of all the to-be-measured adjacent cells in the gap can be improved, and therefore, the method can improve the success rate and the efficiency of the cell measurement of the terminal equipment.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may 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 such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (30)
1. A measurement configuration method, comprising:
the base station sends first measurement configuration information to the terminal equipment; the first measurement configuration information is used to indicate that a gap length value used when the terminal device performs cell measurement is adjusted from G1 to G2, wherein G2 is greater than G1.
2. The method of claim 1, wherein the first measurement configuration information is further used to indicate that a starting position value of gap is adjusted from P1 to P2, wherein P2> P1.
3. The method of claim 1 or 2, wherein before the base station sends the first measurement configuration information to the terminal device, further comprising:
the base station determines G2 according to a value T1 of a reference signal sending period of a to-be-measured adjacent cell, wherein T1 is greater than G1; or
The base station determines G2 from G1.
4. The method of claim 3, wherein G2 conforms to the formula: g2 ═ T1+ m, m being an integer greater than or equal to 0.
5. The method of claim 3, wherein G2 conforms to the formula: g2 ═ k (G1-1) + r, or according to the formula: g2 ═ k × G1+ r, where k is an integer greater than 2 and r is an integer greater than or equal to 0.
6. The method of claim 2, wherein prior to the base station transmitting the first measurement configuration information to the terminal device, further comprising:
the base station determines G2 according to a value T1 of a reference signal sending period of an adjacent cell and a difference value of the starting position of gap, wherein T1 is greater than G1, and the difference value of the starting position of the gap is P2-P1.
7. The method of claim 6, wherein G2 conforms to the formula: g2 ═ T1- (P2-P1) + n, n being an integer greater than or equal to 0.
8. The method of claim 6 or 7, wherein P2-P1-5.
9. The method of any one of claims 1-8, wherein G2 is divisible by 6.
10. The method according to any of claims 1-9, wherein the first measurement configuration information is further used to indicate that the reporting policy for measurement reporting is periodic triggering or a reporting policy with a preferred arrival time prior in periodic triggering or event triggering.
11. The method of any one of claims 1-10, wherein the first measurement configuration information is further used to indicate that a gap period value used by the terminal device in cell measurement is adjusted from S1 to S2, where S2> S1.
12. The method of claim 11, wherein S2 conforms to the formula: s2 ═ a × S1, where a is an integer greater than 2.
13. The method of any of claims 1-12, wherein after the base station sends the first measurement configuration information to the terminal device, further comprising:
the base station sends second measurement configuration information to the terminal equipment;
wherein the second measurement configuration information is used to indicate: the terminal equipment stops cell measurement; or
The second measurement configuration information is used to indicate at least one of:
recovering the gap length value used by the terminal equipment for cell measurement to G1;
and adjusting the gap period value used by the terminal equipment for cell measurement from S3 to S4, wherein S4> S3.
14. The method of claim 13, wherein S4 conforms to the formula: s4 ═ b × S3, where b is an integer greater than 2.
15. A measurement configuration method, comprising:
the method comprises the steps that a terminal device receives first measurement configuration information sent by a base station, wherein the first measurement configuration information is used for indicating that a gap length value used by the terminal device when the terminal device conducts cell measurement is adjusted from G1 to G2, and G2 is larger than G1;
and the terminal equipment determines the position of the gap according to the first measurement configuration information, and performs cell measurement in the gap, wherein the length value of the gap is G2.
16. A base station, comprising:
a communication unit for receiving and transmitting signals;
the processing unit is used for sending first measurement configuration information to the terminal equipment through the communication unit; the first measurement configuration information is used to indicate that a gap length value used when the terminal device performs cell measurement is adjusted from G1 to G2, wherein G2 is greater than G1.
17. The base station of claim 16, wherein the first measurement configuration information is further used to indicate that a starting position value of gap is adjusted from P1 to P2, wherein P2> P1.
18. The base station of claim 16 or 17, wherein the processing unit is further configured to:
before the first measurement configuration information is sent to the terminal equipment through the communication unit, determining G2 according to a value T1 of a reference signal sending period of a neighbor cell to be measured, wherein T1> G1; or according to G1, determine G2.
19. The base station of claim 18, wherein G2 conforms to the formula: g2 ═ T1+ m, m being an integer greater than or equal to 0.
20. The base station of claim 18, wherein G2 conforms to the formula: g2 ═ k (G1-1) + r, or according to the formula: g2 ═ k × G1+ r, where k is an integer greater than 2 and r is an integer greater than or equal to 0.
21. The base station of claim 17, wherein the processing unit is further configured to:
before the first measurement configuration information is sent to the terminal device through the communication unit, determining G2 according to a value T1 of a reference signal sending period of a neighboring cell and a starting position difference value of gap, wherein T1> G1, and the starting position difference value of the gap is P2-P1.
22. The base station of claim 21, wherein G2 conforms to the formula: g2 ═ T1- (P2-P1) + n, n being an integer greater than or equal to 0.
23. The base station of claim 21 or 22, wherein P2-P1-5.
24. A base station according to any of claims 16-23, characterized in that G2 is divisible by 6.
25. The base station according to any of claims 16-24, wherein the first measurement configuration information is further used to indicate that the reporting policy for measurement reporting is periodic triggering or a reporting policy with a preferred time of arrival prior in periodic triggering or event triggering.
26. The base station of any of claims 16-25, wherein the first measurement configuration information is further used to indicate that a gap period value used by the terminal device in cell measurement is adjusted from S1 to S2, where S2> S1.
27. The base station of claim 26, wherein S2 conforms to the formula: s2 ═ a × S1, where a is an integer greater than 2.
28. The base station of any of claims 16-27, wherein the processing unit is further configured to:
after the first measurement configuration information is sent to the terminal equipment through the communication unit, sending second measurement configuration information to the terminal equipment through the communication unit;
wherein the second measurement configuration information is used to indicate: the terminal equipment stops cell measurement; or
The second measurement configuration information is used to indicate at least one of:
recovering the gap length value used by the terminal equipment for cell measurement to G1;
and adjusting the gap period value used by the terminal equipment for cell measurement from S3 to S4, wherein S4> S3.
29. The base station of claim 28, wherein S4 conforms to the formula: s4 ═ b × S3, where b is an integer greater than 2.
30. A terminal device, comprising:
a communication unit for receiving and transmitting signals;
a processing unit, configured to receive, by the communication unit, first measurement configuration information sent by a base station, where the first measurement configuration information is used to indicate that a gap length value used when the terminal device performs cell measurement is adjusted from G1 to G2, where G2 is greater than G1; and determining the position of the gap according to the first measurement configuration information, and performing cell measurement in the gap, wherein the length value of the gap is G2.
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