WO2022141130A1

WO2022141130A1 - Cell measurement method and communication apparatus

Info

Publication number: WO2022141130A1
Application number: PCT/CN2020/141108
Authority: WO
Inventors: 韩霜; 杨帆; 常俊仁
Original assignee: 华为技术有限公司
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2022-07-07
Also published as: CN114982273A

Abstract

Provided are a cell measurement method and a communication apparatus, which relate to the technical field of communications, and are used for enabling a terminal device to trigger a measurement report in a timely manner. In the method, when the moving speed of a terminal device is relatively high, the terminal device can use a filtering parameter with a larger numerical value to filter the signal strength of each cell to be measured, so as to increase the weight of the current measured signal strength in a measurement result, and the terminal device can then trigger a measurement event in a timely manner to report a measurement report. A network device can initiate a handover for the terminal device according to the measurement report.

Description

Cell measurement method and communication device

technical field

The present application relates to the field of communication technologies, and in particular, to a cell measurement method and a communication device.

Background technique

When the terminal device performs cell measurement, it will perform cell measurement according to the measurement configuration parameters delivered by the network device. The measurement configuration parameters delivered by the network device include: measurement frequency/cell information, measurement report reporting conditions, layer 3 (layer 3, L3) filtering parameters and other information.

The measurement frequency/cell information is used to indicate the frequency/cell measured by the terminal device; the measurement report reporting condition is used to determine whether the cell measurement result of the terminal meets the measurement report reporting condition, and if so, the terminal device sends a measurement report to the network device , triggering the network device to initiate the handover process. The filtering parameter is a weight value, which is used to weight the measurement result of the current measurement and the measurement result of the previous measurement to determine the final measurement result.

Currently, in a scenario in which a terminal device moves at a high speed, it may happen that the terminal device cannot trigger a measurement report in time, thereby causing the terminal device to fail to initiate a handover.

SUMMARY OF THE INVENTION

The present application provides a cell measurement method and a communication device, which solve the problem in the prior art that a terminal device cannot trigger a measurement report in time in a high-speed moving scenario.

In order to solve the above-mentioned technical problems, the application adopts the following technical solutions:

In a first aspect, a cell measurement method is provided, including: a terminal device receiving measurement configuration information from a network device.

The terminal device sends a measurement report to the network device; the measurement report is determined according to the measurement configuration information, the first signal strength of the cell to be measured, the second signal strength of the cell to be measured, and the first filtering parameter; the first signal strength is measured by the terminal device. The current signal strength of the cell to be measured, the second signal strength is the signal strength determined by the terminal device according to the historical measurement results of the cell to be measured; the first filter parameter is the layer 3 filter parameter determined according to the moving speed of the terminal device.

Based on the above technical solution, the terminal device can determine the first filter parameter according to the moving speed of the terminal device; the terminal device filters the signal strength of each cell to be measured according to the first filter parameter, and determines the measurement result of each cell to be measured. The terminal device triggers a corresponding measurement event to generate a measurement report according to the measurement results of each cell to be measured, and sends the measurement report to the network device.

In this way, when the moving speed of the terminal device is relatively high, the terminal device can filter the signal strength of each cell to be measured by using a filter parameter with a larger value, and increase the weight of the currently measured signal strength in the measurement result. Furthermore, the terminal device can trigger the measurement event in time to report the measurement report. The network device can initiate handover to the terminal device according to the measurement report.

With reference to the above first aspect, in a possible implementation manner, the first filtering parameter is a layer 3 filtering parameter determined by the terminal device according to the moving speed of the terminal device.

Based on this, the terminal device can directly determine the layer 3 filtering parameters without an instruction from the network device, thereby reducing signaling overhead between the network device and the terminal device.

With reference to the above first aspect, in a possible implementation manner, the first filtering parameter is a layer 3 filtering parameter determined by the network device according to the moving speed of the terminal device.

Based on this, the network device indicates the layer 3 filter parameters for the terminal device, which can make the layer 3 filter parameters determined by the network device and the terminal device consistent, and improve the ability of the network device to manage the terminal device.

With reference to the above first aspect, in a possible implementation manner, the method further includes: the terminal device receives second indication information from the network device, where the second indication information is used to indicate the first filtering parameter.

Based on this, the network device may indicate the first filtering parameter through the second indication information.

With reference to the above first aspect, in a possible implementation manner, the method further includes: the terminal device sends third indication information to the network device, where the third indication information is used to indicate the moving speed of the terminal device.

Based on this, by sending the third indication information to the network device, the terminal device can enable the network device to determine the moving speed of the terminal device in time, and then determine the first filtering parameter.

With reference to the above-mentioned first aspect, in a possible implementation manner, the first filter parameter is the filter parameter with the largest value among the second filter parameter and the third filter parameter. The second filtering parameter is a layer 3 filtering parameter determined by the terminal device according to the moving speed of the terminal device. The third filtering parameter is a layer 3 filtering parameter sent by the network device to the terminal device.

Based on this, the terminal device determines that the filter parameter with the largest value among the second filter parameter and the third filter parameter is the first filter parameter, which can further improve the probability of the terminal device triggering the measurement report, so that the terminal device can report the measurement report in time.

With reference to the above first aspect, in a possible implementation manner, the third filtering parameter is specifically: a layer 3 filtering parameter determined by the network device according to the moving speed of the terminal device and sent to the terminal device.

Based on this, the terminal device can determine the filter parameter with the largest value from the two filter parameters determined according to the moving speed, further improving the probability of the terminal device triggering the measurement report, so that the terminal device can report the measurement report in time.

In a second aspect, a cell measurement method is provided, including: a network device sending measurement configuration information to a terminal device.

The network device receives the measurement report from the terminal device; the measurement report is determined according to the measurement configuration information, the first signal strength of the cell to be measured, the second signal strength of the cell to be measured, and the first filtering parameter; the first signal strength is measured by the terminal device The current signal strength of the cell to be measured is the current signal strength of the cell to be measured, the second signal strength is the signal strength determined by the terminal device according to the historical measurement results of the cell to be measured; the first filtering parameter is the layer 3 filtering parameter determined according to the moving speed of the terminal device.

With reference to the above second aspect, in a possible implementation manner, the first filtering parameter is a layer 3 filtering parameter determined by the terminal device according to the moving speed of the terminal device.

With reference to the above second aspect, in a possible implementation manner, the first filtering parameter is a layer 3 filtering parameter determined by the network device according to the moving speed of the terminal device.

With reference to the above second aspect, in a possible implementation manner, the method further includes: the network device sends second indication information to the terminal device, where the second indication information is used to indicate the first filtering parameter.

With reference to the above second aspect, in a possible implementation manner, the method further includes: the network device receives third indication information from the terminal device, where the third indication information is used to indicate the moving speed of the terminal device.

With reference to the above second aspect, in a possible implementation manner, the first filter parameter is the filter parameter with the largest value among the second filter parameter and the third filter parameter. The second filtering parameter is a layer 3 filtering parameter determined by the terminal device according to the moving speed of the terminal device. The third filtering parameter is a layer 3 filtering parameter sent by the network device to the terminal device.

With reference to the above second aspect, in a possible implementation manner, the third filtering parameter is specifically: a layer 3 filtering parameter determined by the network device according to the moving speed of the terminal device and sent to the terminal device.

In a third aspect, a communication device is provided, characterized by comprising: a processing unit and a communication unit;

The processing unit is configured to instruct the communication unit to receive the measurement configuration information from the network device.

The processing unit is further configured to instruct the communication unit to send a measurement report to the network device; the measurement report is determined according to the measurement configuration information, the first signal strength of the cell to be measured, the second signal strength of the cell to be measured, and the first filtering parameter; the first The signal strength is the current signal strength of the cell to be measured measured by the terminal equipment, the second signal strength is the signal strength determined by the terminal equipment according to the historical measurement results of the cell to be measured; the first filtering parameter is the layer 3 determined according to the moving speed of the terminal equipment filter parameters.

With reference to the above third aspect, in a possible implementation manner, the first filtering parameter is a layer 3 filtering parameter determined by the terminal device according to the moving speed of the terminal device.

With reference to the above third aspect, in a possible implementation manner, the first filtering parameter is a layer 3 filtering parameter determined by the network device according to the moving speed of the terminal device.

With reference to the above third aspect, in a possible implementation manner, the processing unit is further configured to instruct the communication unit to receive second indication information from the network device, where the second indication information is used to indicate the first filtering parameter.

With reference to the above third aspect, in a possible implementation manner, the processing unit is further configured to instruct the communication unit to send third indication information to the network device, where the third indication information is used to indicate the moving speed of the terminal device.

With reference to the above third aspect, in a possible implementation manner, the first filter parameter is the filter parameter with the largest value among the second filter parameter and the third filter parameter. The second filtering parameter is a layer 3 filtering parameter determined by the terminal device according to the moving speed of the terminal device. The third filtering parameter is a layer 3 filtering parameter sent by the network device to the terminal device.

With reference to the above third aspect, in a possible implementation manner, the third filtering parameter is specifically: a layer 3 filtering parameter determined by the network device according to the moving speed of the terminal device and sent to the terminal device.

In a fourth aspect, a communication device is provided, comprising: a processing unit and a communication unit.

The processing unit is configured to instruct the communication unit to send measurement configuration information to the terminal device.

The processing unit is used to instruct the communication unit to receive the measurement report from the terminal device; the measurement report is determined according to the measurement configuration information, the first signal strength of the cell to be measured, the second signal strength of the cell to be measured, and the first filtering parameter; the first The signal strength is the current signal strength of the cell to be measured measured by the terminal equipment, the second signal strength is the signal strength determined by the terminal equipment according to the historical measurement results of the cell to be measured; the first filtering parameter is the layer 3 determined according to the moving speed of the terminal equipment filter parameters.

With reference to the above fourth aspect, in a possible implementation manner, the first filtering parameter is a layer 3 filtering parameter determined by the terminal device according to the moving speed of the terminal device.

With reference to the above fourth aspect, in a possible implementation manner, the first filtering parameter is a layer 3 filtering parameter determined by the network device according to the moving speed of the terminal device.

With reference to the above fourth aspect, in a possible implementation manner, the processing unit is further configured to instruct the communication unit to send second indication information to the terminal device, where the second indication information is used to indicate the first filtering parameter.

With reference to the above fourth aspect, in a possible implementation manner, the processing unit is further configured to instruct the communication unit to receive third indication information from the terminal device, where the third indication information is used to indicate the moving speed of the terminal device.

With reference to the above fourth aspect, in a possible implementation manner, the first filter parameter is the filter parameter with the largest value among the second filter parameter and the third filter parameter. The second filtering parameter is a layer 3 filtering parameter determined by the terminal device according to the moving speed of the terminal device. The third filtering parameter is a layer 3 filtering parameter sent by the network device to the terminal device.

With reference to the above fourth aspect, in a possible implementation manner, the third filtering parameter is specifically: a layer 3 filtering parameter determined by the network device according to the moving speed of the terminal device and sent to the terminal device.

In a fifth aspect, the present application provides a communication device, comprising: a processor and a storage medium; at least one processor and an interface circuit, where the interface circuit is configured to receive signals from other communication devices other than the communication device and transmit to the processor Or send the signal from the processor to other communication devices than the communication device, and the processor is used to implement the first aspect and any one of the possible implementations of the first aspect through logic circuits or executing code instructions. method. The communication device may be a terminal device or a chip in the terminal device.

In a sixth aspect, the present application provides a communication device, comprising: a processor and a storage medium; at least one processor and an interface circuit, where the interface circuit is configured to receive signals from other communication devices other than the communication device and transmit to the processor Or send the signal from the processor to other communication devices than the communication device, and the processor is used to implement the second aspect and any one of the possible implementations of the second aspect through logic circuits or executing code instructions. method. The communication device may be a network device or a chip in the network device.

In a seventh aspect, the present application provides a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, and when the instructions are run on a computer, the computer is made to execute any one of the first aspect and the first aspect The methods described in possible implementations.

In an eighth aspect, the present application provides a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, and when the instructions are run on a computer, the computer is made to execute any one of the second aspect and the second aspect. The methods described in possible implementations.

In a ninth aspect, the present application provides a computer program product comprising instructions that, when the computer program product is run on a computer, cause the computer to perform as described in the first aspect and any possible implementation manner of the first aspect method.

In a tenth aspect, the present application provides a computer program product comprising instructions that, when the computer program product is run on a computer, cause the computer to perform as described in the second aspect and any possible implementation of the second aspect method.

It should be understood that the description of technical features, technical solutions, beneficial effects or similar language in this application does not imply that all features and advantages may be realized in any single embodiment. On the contrary, it can be understood that the description of features or beneficial effects means that a specific technical feature, technical solution or beneficial effect is included in at least one embodiment. Therefore, descriptions of technical features, technical solutions or beneficial effects in this specification do not necessarily refer to the same embodiments. Furthermore, the technical features, technical solutions and beneficial effects described in this embodiment can also be combined in any appropriate manner. Those skilled in the art will understand that an embodiment can be implemented without one or more specific technical features, technical solutions or beneficial effects of a specific embodiment. In other embodiments, additional technical features and benefits may also be identified in specific embodiments that do not embody all embodiments.

Description of drawings

1 is a schematic diagram of a system architecture of a communication system according to an embodiment of the present application;

FIG. 2 is a schematic flowchart of a cell measurement method provided by an embodiment of the present application;

3 is a schematic flowchart of another cell measurement method provided by an embodiment of the present application;

4 is a schematic flowchart of another cell measurement method provided by an embodiment of the present application;

FIG. 5 is a schematic flowchart of another cell measurement method provided by an embodiment of the present application;

FIG. 6 is a schematic flowchart of another cell measurement method provided by an embodiment of the present application;

FIG. 7 is a schematic structural diagram of a communication device according to an embodiment of the present application;

FIG. 8 is a schematic diagram of a hardware structure of a communication device provided by an embodiment of the present application;

FIG. 9 is a schematic diagram of a hardware structure of another communication device provided by an embodiment of the present application;

FIG. 10 is a schematic diagram of a hardware structure of a terminal device according to an embodiment of the application;

FIG. 11 is a schematic diagram of a hardware structure of a network device according to an embodiment of the application.

Detailed ways

In the description of this application, unless otherwise stated, "/" means "or", for example, A/B can mean A or B. In this article, "and/or" is only an association relationship to describe the associated objects, which means that there can be three kinds of relationships, for example, A and/or B, which can mean that A exists alone, A and B exist at the same time, and B exists alone these three situations. Further, "at least one" means one or more, and "plurality" means two or more. The words "first" and "second" do not limit the quantity and execution order, and the words "first", "second" and the like do not limit certain differences.

It should be noted that, in this application, words such as "exemplary" or "for example" are used to represent examples, illustrations or illustrations. Any embodiment or design described in this application as "exemplary" or "such as" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present the related concepts in a specific manner.

The present application can be applied to 4G systems, various systems based on 4G system evolution, 5G systems, and various systems based on 5G system evolution. The 4G system may also be called an evolved packet system (EPS). The core network of the 4G system may be called an evolved packet core (EPC), and the access network may be called long term evolution (LTE). The core network of the 5G system can be called 5GC (5G core), and the access network can be called new radio (NR). For the convenience of description, the application of the application to the 5G system is exemplified in the following to illustrate the application, but it can be understood that the application is also applicable to the 4G system, the third generation (3th Generation, 3G) system, etc., without limitation .

The network device in this embodiment of the present application is an entity on the network side that is used for sending a signal, or receiving a signal, or sending a signal and receiving a signal. The network device may be a device deployed in a radio access network (RAN) to provide wireless communication functions for terminal devices, for example, a TRP, a base station (for example, an evolved NodeB (eNB, eNB or eNodeB), a downlink Generation base station node (next generation node base station, gNB), next generation eNB (next generation eNB, ng-eNB, etc.), various forms of control nodes (for example, network controller, wireless controller (for example, cloud radio Access network (cloud radio access network, CRAN) scenario wireless controller)), road side unit (road side unit, RSU) and so on. Specifically, the network device may be various forms of macro base station, micro base station (also referred to as small cell), relay station, access point (access point, AP), etc., and may also be the antenna panel of the base station. The control node can be connected to multiple base stations, and configure resources for multiple terminal devices covered by the multiple base stations. In systems using different radio access technologies (RATs), the names of devices with base station functions may vary. For example, it may be called eNB or eNodeB in LTE system, and may be called gNB in 5G system or NR system, and the specific name of the base station is not limited in this application. The network device may also be a network device in a future evolved public land mobile network (public land mobile network, PLMN).

The terminal device in this embodiment of the present application is an entity on the user side that is used to receive a signal, or send a signal, or receive a signal and send a signal. The terminal device may be a wireless terminal device or a wired terminal device. A wireless end device may be a device that provides voice and/or data connectivity to a user, a handheld device with wireless connectivity, or other processing device connected to a wireless modem. A certain air interface technology (for example, NR technology or LTE technology) is used to communicate with each other between the terminal device and the network device. A certain air interface technology (for example, NR technology or LTE technology) may also be used for mutual communication between terminal devices. The wireless terminal device may communicate with one or more core network devices via the network device, such as with AMF, SMF, and the like. The terminal device can be a mobile terminal device, such as a mobile phone (or called a "cellular" phone), a smart phone, a satellite wireless device, a wireless terminal device in industrial control, a wireless terminal device in unmanned driving, a wireless terminal device in telesurgery Terminal equipment, wireless terminal equipment in smart grid, wireless terminal equipment in transportation security, wireless terminal equipment in smart city, wireless terminal equipment in smart home, wireless modem card and computer with mobile terminal equipment ( For example, mobile devices, which may be laptop, portable, pocket-sized, hand-held, computer built-in, or vehicle-mounted), exchange voice and/or data with network equipment. Exemplarily, the wireless terminal device may be a personal communication service (PCS) phone, a mobile phone, a tablet computer, a computer with a wireless transceiver function, an AR terminal device, a VR terminal device, an MR terminal device, an XR terminal device, a cordless Telephone, session initiation protocol (SIP) phone, wireless local loop (WLL) station, personal digital assistant (PDA), machine type communication terminal equipment and other equipment. In vehicle networking communication, the communication device loaded on the vehicle is a terminal device, and the roadside unit (RSU) can also be used as a terminal device. The communication equipment loaded on the UAV can also be regarded as a kind of terminal equipment. Terminal equipment may also be referred to as user equipment (UE), terminal, mobile terminal (MT), subscriber unit (subscriber unit), subscriber station, mobile station, mobile station, remote station, access point, connection Incoming terminal, user terminal, user agent, etc.

In the current mobile communication system, there are situations where multiple cells cover the same location, and when the terminal device is located at the same location covered by multiple cells, the terminal device needs to select the cell with the strongest access signal strength. In this way, the terminal device transmits service data on the cell with the strongest signal strength, thereby improving the data transmission quality of the terminal device.

During the movement of the terminal device, the strength of the signals from each cell received by the terminal device will change continuously.

For example, when the terminal device is far away from the currently accessed cell (referred to as cell A), the signal strength from cell A received by the terminal device will continue to decrease. When the signal strength from cell A received by the terminal equipment drops to a certain value, the terminal equipment continues to transmit services on cell A, which will cause the service to be stuck, congested, or even dropped.

In order to ensure the transmission quality of the service of the terminal equipment. During the movement of the terminal device, if it is determined that the signal strength of the neighboring cell of cell A (referred to as cell B) is greater than that of cell A, the terminal device needs to report the event to the network device (that is, the signal strength of cell B is greater than that of cell A). signal strength) to trigger the network device to initiate a handover procedure to handover the terminal device from cell A to cell B.

In this way, the terminal equipment can always keep transmitting services on the cell with strong signal strength, so as to ensure the transmission quality of the terminal equipment services.

Currently, the method for performing cell measurement and handover by terminal equipment and network equipment includes the following steps 1-6:

Step 1. The terminal equipment accesses the cell A.

In a possible implementation manner, the terminal equipment accessing the network equipment may be implemented as: the terminal equipment camps on the cell A and enters a connected state.

Step 2: The network device sends measurement configuration parameters to the terminal device. Correspondingly, the terminal device receives the measurement configuration parameters from the network device.

In a possible implementation manner, the measurement configuration parameters are carried in an RRC reconfiguration (RRCReconfiguration) message sent by the network device to the terminal device. That is to say, the RRC reconfiguration message sent by the network device to the terminal device includes measurement configuration parameters (MeasConfig).

The measurement configuration parameters recorded in the embodiments of the present application include at least one of the following information: measurement frequency/cell information, reporting threshold configuration, filtering parameter configuration, timer duration configuration, and other information.

The measurement frequency/cell information is used to indicate the cell to be measured and the frequency corresponding to the cell. The measurement frequency/cell information includes the information of the cell currently accessed by the terminal device. Alternatively, the measurement frequency point cell information may only include the frequency point information that needs to be measured, and at this time, the information of the current access cell may be indicated by an RRC reconfiguration message.

The reporting threshold configuration is used to indicate the conditions for the terminal device to send the measurement report to the network device. That is to say, the reporting threshold configuration is used to instruct the terminal device to determine the measurement report according to the measurement result, and to send the measurement report to the network device.

The filter coefficient is used to filter the signal strength of the cell currently measured by the terminal device and the measurement result of the cell determined by the terminal device in the previous cell measurement, so as to determine the measurement result of the cell.

In an example, the measurement result of the cell determined by the terminal device satisfies the following formula 1:

Y _n =(1-a)×Y _n-1 +a×X Formula 1

Among them, Y _n is the measurement result of the cell; Y _n-1 is the measurement result of the cell determined by the terminal device in the previous cell measurement, X is the current signal strength of the cell measured by the terminal device, a is the filter parameter, and the value is a constant, Generally speaking, the value of a is 0.5.

Since the wireless signal of the cell is easily interfered by other signals, resulting in fast fading and other situations, the signal strength of the cell measured by the terminal device may be lower than the actual signal strength of the cell. If the terminal equipment reports a measurement report because the signal strength of the cell measured by the terminal equipment is lower than the actual signal strength of the cell, it will cause the network equipment to switch the terminal equipment to a cell with poor signal quality, thereby reducing the service transmission quality of the terminal equipment. .

In order to avoid this situation, the network device configures filtering parameters for the terminal device to balance the previous measurement result and the current measurement result of the terminal device, so as to avoid the situation where the terminal device erroneously generates a measurement report due to fast fading.

Step 3: The terminal device measures the signal strength of the frequency point or cell according to the measurement configuration parameter, and determines the measurement result.

For example, the measurement configuration parameter indicates that the cells to be measured include cell A and cell B.

The terminal device starts the physical (PHY) layer to measure the signal strength of cell A according to the frequency configuration or cell configuration information in the measurement configuration parameters, and the PHY layer of the terminal device sends the signal strength of cell A to the RRC layer of the terminal device. The RRC layer of the terminal device determines the measurement result of cell A according to the signal strength of cell A, the previous measurement result of cell A, and the filter coefficient.

The terminal device starts the physical layer to measure the signal strength of cell B according to the frequency configuration or cell configuration information in the measurement configuration parameters, and the PHY layer of the terminal device sends the signal strength of cell B to the RRC layer of the terminal device. The RRC layer of the terminal device determines the measurement result of the cell B according to the signal strength of the cell B, the previous measurement result of the cell B, and the filter coefficient.

Specifically, for cell A, the terminal device performs the following 3.1-3.3 to determine the measurement result of cell A.

Step 3.1: The terminal device starts the physical (PHY) layer to measure the reference signal of cell A, and determines the current signal strength of cell A.

Wherein, the signal strength of cell A includes but is not limited to at least one of the following: reference signal receiving power (reference signal receiving power, RSRP) value; reference signal receiving quality (reference signal receiving quality, RSRQ) value; signal-to-interference plus noise ratio (signal to interference plus noise ratio, SINR) value, received signal strength indication (received signal strength indication, RSSI).

Step 3.2, the terminal device determines the previous measurement result of cell A.

Wherein, the previous measurement result of cell A is determined according to the signal strength of cell A determined by the terminal device last time, and the filtering parameters. .

Step 3.3: The terminal device determines the measurement result of cell A according to formula 1, the current signal strength of cell A, and the previous measurement result of cell A.

It should be pointed out that if the terminal device measures the signal strength of cell A for the first time, the terminal device directly uses the measurement result in step 3.1 as the measurement result of cell A, without the need to follow the methods recorded in steps 3.1 to 3.3 above. Determine the final measurement result.

For cell B, the terminal equipment performs a manner similar to the above steps 3.1 to 3.3 to determine the measurement result of cell B.

Step 4. The terminal device determines a measurement report according to the measurement result.

Specifically, in step 3, the RRC layer of the terminal device determines the measurement results of each cell. The RRC layer of the terminal device evaluates the measurement results of each cell to determine whether the current measurement result meets one of the measurement events that need to be reported. If so, the RRC layer of the terminal device generates a corresponding measurement report and sends the measurement report to the network device. measurement report.

In a possible implementation manner, the measurement report is used to report measurement events to the network device.

As an example, the measurement events to be reported include one or more of the following:

A1: The measurement result of the serving cell is higher than the threshold 1.

A2: The measurement result of the serving cell is lower than the threshold 2.

A3: The neighbor cell measurement result is higher than the serving cell measurement result + offset value (offset).

A4: The adjacent cell measurement result is higher than threshold 3.

A5: The measurement result of the serving cell is lower than the threshold 4, and the measurement result of the neighbor cell is higher than the threshold 5.

A6: The neighbor cell measurement result is higher than the Scell measurement result + offset value (offset).

B1: The measurement result of the inter-system cell is higher than the threshold 6.

B2: The measurement result of the inter-system cell is higher than the threshold 7, and the SPcell measurement result is lower than the threshold 8.

The serving cell above is cell A, and the neighboring cell is cell B. The terminal device determines whether the measurement results of cell A and cell B satisfy the measurement event that needs to be reported according to the measurement results of cell A and cell B. If a measurement event that needs to be reported is satisfied, the terminal device generates a measurement report corresponding to the event.

It can be understood that the events to be reported may also include other types of events, which are not limited in this application.

It should be noted that the terminal device may determine the measurement event to be reported according to the MeasIdList in the measurement configuration sent by the network device. MeasIdList is used to associate frequency/cell information with measurement events to be reported and measurement reporting conditions.

For example, the measurement event that the terminal device needs to report includes the above-mentioned A3 event. When the terminal device determines that the current measurement result satisfies the A3 event, the terminal device generates a measurement report corresponding to the A3 event.

It should be pointed out that the measurement report generated by the terminal device usually includes only one measurement event that needs to be reported. In the case that there are multiple measurement events to be reported, and the terminal device determines that the current measurement result satisfies multiple measurement events to be reported at the same time, the terminal device generates a corresponding measurement report for each measurement event to be reported, and sends the corresponding measurement reports to each measurement event one by one. The network equipment sends these measurement reports.

Step 5: The terminal device sends a measurement report to the network device. Correspondingly, the network device receives the measurement report from the terminal device.

Step 6: The network device performs a corresponding handover process according to the events included in the measurement report.

In the prior art, there is a scenario in which a terminal device moves at a high speed. For example, terminal equipment located in high-speed vehicles (high-speed rail, train, car).

Based on the above description of cell measurement in the prior art, it can be known that:

The signal strength in the measurement result of the cell determined by the terminal device is: the current signal strength of the cell determined by the terminal device and the weighted result of the previous measurement result of the cell. The weighted value is the value of the filtering parameter.

Since in the prior art, the value of the filtering parameter is configured as a fixed value, for example, the value of the filtering parameter in the prior art may be 0.5. Therefore, when the terminal device performs cell measurement, the previous measurement result of the cell has a great influence on the current measurement result.

When the terminal equipment moves at high speed, the signal strength of the cell changes greatly. If the previous measurement results account for a large proportion, the terminal equipment will not be able to trigger the handover event in time, and the measurement report will not be triggered in time. Switch to another cell with better signal quality.

Therefore, in the prior art, if the terminal device is in a high-speed moving scenario, it may happen that the terminal device cannot switch cells in time, which affects the service transmission quality of the terminal device.

In order to solve the above technical problems, the present application provides a cell measurement method. The terminal device uses filtering parameters related to the moving speed of the terminal device to perform cell measurement; the terminal device can use a filter that matches the speed in a high-speed moving scenario. parameters to filter. In this way, the terminal device can quickly trigger the reporting of the measurement report in the high-speed mobile scenario, thereby triggering the network device to initiate cell handover to the terminal device, thereby improving the service transmission quality of the terminal device.

The cell measurement method provided in this embodiment of the present application can be applied to the communication system 100 shown in FIG. 1 . As shown in FIG. 1 , the communication system 100 includes: a terminal device 10 and a network device 20 . The terminal device 10 and the network device 20 are connected by a wireless communication link.

The terminal device 10 is configured to measure the signal strength of the cell, generate a measurement report according to the signal strength of the cell, and the terminal device 10 is further configured to send the measurement report to the network device 20 .

The network device 20 sends measurement configuration information to the terminal device 10, and switches cells for the terminal device according to the measurement report sent by the terminal device 10.

The cell measurement method provided in this embodiment of the present application can be applied to the communication system shown in FIG. 1 . As shown in FIG. 2 , the cell measurement method includes:

S200. The network device sends measurement configuration information to the terminal device. Correspondingly, the terminal device receives the measurement configuration information from the network device.

The measurement configuration information sent by the network device to the terminal device is the same as the measurement configuration information recorded in the foregoing step 2, and details are not described herein again.

This application does not limit the manner in which the network device determines the movement speed of the terminal device.

S201. A terminal device sends a measurement report to a network device. Correspondingly, the network device receives the measurement report from the terminal device.

The measurement report is determined according to the measurement configuration information, the first signal strength of the cell to be measured, the second signal strength of the cell to be measured, and the first filtering parameter; the first signal strength is the current signal strength of the cell to be measured measured by the terminal device, and the first signal strength is the current signal strength of the cell to be measured measured by the terminal device. The second signal strength is the signal strength determined by the terminal device according to the historical measurement result of the cell to be measured; the first filter parameter is the layer 3 filter parameter determined according to the moving speed of the terminal device.

It should be pointed out that the measurement report sent by the terminal device to the network device may also carry the measurement result of the cell to be measured determined by the terminal device, which is not limited in this application.

In this case, with reference to FIG. 2, as shown in FIG. 3, before S201, the method provided by the present application further includes the following S300-S306, which are described in detail below:

S300. The terminal device determines the movement speed of the terminal device.

In a possible implementation manner, the terminal device may determine the movement speed of the terminal device by means of a Sensor sensor, satellite positioning, or the like. There are many ways for the terminal device to determine the moving speed of the terminal device, which is not limited in this application.

S301. A terminal device determines a first filtering parameter.

Wherein, the first filtering parameter is related to the moving speed of the terminal device.

Specifically, the size of the first filtering parameter may be proportional to the moving speed of the terminal device. The greater the moving speed of the terminal device, the greater the value of the first filtering parameter.

In an example, the size of the first filtering parameter is determined by a calculation formula related to the moving speed, and the calculation formula may be a preset calculation formula.

In another example, the terminal device or the network device divides multiple moving speed intervals for the terminal device in advance, and each moving speed in the multiple moving speed intervals corresponds to different filtering parameters.

In this case, the first filter parameter is a filter parameter corresponding to the movement speed interval to which the movement speed of the terminal device belongs.

It should be pointed out that the first filtering parameter may be a layer 3 filtering parameter determined by the terminal device according to the moving speed of the terminal device; or, the first filtering parameter may also be determined by the network device according to the moving speed of the terminal device and sent to the terminal device. The layer 3 filter parameters. This application does not limit this.

S302. The terminal device measures the cell to be measured according to the measurement configuration information, and determines the first signal strength of the cell to be measured.

It should be pointed out that the signal of the cell to be measured measured by the terminal device may be the reference signal of the cell to be measured.

In an example, when the cell to be measured is an LTE cell, the reference signal may be a cell reference signal (cell reference signal, CRS) of the cell to be measured.

When the cell to be measured is a 5G cell, the reference signal may be a synchronization signal block (SSB) of the cell to be measured, and a channel state information reference signal (CSI-RS) of the cell to be measured. )Wait.

It should be pointed out that the cell to be measured may also be other types of cells. Correspondingly, the reference signal measured by the terminal device may also be the reference signal corresponding to the cell. This application does not limit the type of cell and the type of reference signal.

The first signal strength of the cell measured by the terminal device may be at least one of an RSRP value, an RSRQ value, and an SINR value of the cell. Alternatively, the first signal strength may also be other parameters used to characterize signal quality, which is not limited in this application.

S303. The terminal device determines the second signal strength of the cell to be measured according to the historical measurement information of the cell to be measured.

It should be pointed out that the second signal strength of the cell to be measured is the signal strength of the cell to be measured that is finally determined after filtering by the filtering parameter when the terminal device previously measured the cell to be measured.

S304. The terminal device determines the measurement result of the cell to be measured according to the first signal strength, the second signal strength, and the first filtering parameter.

Specifically, the terminal device can determine the measurement result of the cell to be measured according to the above formula 1. The difference between S304 and step 2.3 is that in step 2.3, the value of the filtering parameter is a fixed value, which is the value configured for the terminal device when the network device configures the measurement configuration parameters for the terminal device.

In S304, the value of the filtering parameter is determined according to the moving speed of the terminal device.

It should be noted that the number of cells to be measured is one or more, for example, the cells to be measured include the cell A and the cell B described above.

The terminal device determines the measurement result of each cell to be measured in the one or more cells to be measured according to the methods described in S302 to S304 above.

S305. The terminal device determines a measurement report according to the measurement result of the cell to be measured.

In a possible implementation manner, the terminal device determines the measurement report according to the measurement result of each cell to be measured in the one or more cells to be measured.

In the following, the terminal equipment determines the measurement report for reporting the A3 event according to the cell measurement result as an example for description:

The terminal device determines that the current serving cell is cell A, and the neighboring cells of cell A include cell B. The offset value configured by the network device for the terminal device is 2dB.

The terminal device determines the measurement result of cell A according to the first filtering parameter and the above S302-S304, respectively. And, the terminal device determines the measurement result of the cell B according to the first filtering parameter and the above S302-S304.

The terminal device compares the measurement result of cell A with the measurement result of cell B.

The terminal device determines that the event A3 is triggered when the signal strength of cell B is greater than that of cell A by more than 2 dB. At this time, the terminal device generates a measurement report for reporting the A3 event.

S306, the terminal device sends a measurement report to the network device. Correspondingly, the network device receives the measurement report from the terminal device.

As shown in FIG. 3, after S306, the cell measurement method further includes the following S307:

S307, the network device performs corresponding processing according to the reported event in the measurement report.

In an example, when the measurement report sent by the terminal device is used to report the above-mentioned A3 event, the network device initiates a handover procedure to switch the terminal device from cell A to cell B. For the handover process, reference may be made to the prior art, which will not be repeated in this application.

Based on the above technical solutions, the terminal device uses the speed-related filtering parameters to filter the cell measurement results. In a scenario where the terminal device moves at a high speed, the terminal device can use a larger filter parameter to filter the measurement results of the cell to increase the proportion of the current measurement results. Therefore, the probability of the terminal equipment reporting the measurement report can be increased, thereby enabling the network equipment to switch the terminal equipment in time.

In a possible implementation manner of S301, the first filtering parameter may be any one of the following case 1, case 2, or case 3:

Case 1. The first filtering parameter is a layer 3 filtering parameter determined by the terminal device according to the moving speed of the terminal device.

In case 2, the first filtering parameter is a layer 3 filtering parameter determined by the network device according to the moving speed of the terminal device.

Case 3: The first filter parameter is the filter parameter with the largest value among the second filter parameter and the third filter parameter. The second filtering parameter is a layer 3 filtering parameter determined by the terminal device according to the moving speed of the terminal device; the third filtering parameter is a layer 3 filtering parameter sent by the network device to the terminal device.

In the following, case 1, case 2, and case 3 are described in detail:

With reference to FIG. 3 , as shown in FIG. 4 , in case 1, the terminal device determines the first filtering parameter by performing the following S400.

S400. The terminal device determines the first filtering parameter according to the moving speed of the terminal device.

Specifically, the terminal device has a rule for determining the first filtering parameter. After the terminal device determines the moving speed of the terminal device, the terminal device determines the first filtering parameter according to the moving speed and the above rules.

In an example, the terminal device has a mapping relationship between filtering parameters and moving speed. After determining the moving speed, the terminal device determines the first filtering parameter according to the moving speed and the mapping relationship.

In another example, the terminal device has a calculation formula for determining the first filtering parameter according to the moving speed. After determining the moving speed, the terminal device determines the first filtering parameter according to the moving speed and the calculation formula.

It should be noted that the terminal device may also determine the first filtering parameter in other manners, which is not limited in this application.

With reference to FIG. 3 , as shown in FIG. 5 , in case 2, the terminal device and the network device determine the first filtering parameter by performing the corresponding steps in the following S500-S504.

S500. The terminal device determines third indication information.

The third indication information is used to indicate the moving speed of the terminal device.

It should be noted that the third indication information may directly indicate the movement speed of the terminal device, or may indirectly indicate the movement speed of the terminal device by indicating the movement state of the terminal device.

An example, in the case where the third indication information directly indicates the movement speed of the terminal device, if the movement speed of the terminal device is 120km/h, the third indication information determined by the terminal device includes the specific value of the movement speed of the terminal device. : 120km/h.

In another example, the terminal device determines that the motion state of the terminal device includes: a first motion state, a second motion state, a third motion state, and a fourth motion state.

Wherein, the interval of the moving speed corresponding to the first motion state is: [0, 60), and the unit is km/h.

The interval of the movement speed corresponding to the second motion state is: [60, 150).

The interval of the movement speed corresponding to the third motion state is: [150, 300).

The interval of the moving speed corresponding to the fourth motion state is: [300, +∞).

At this time, if the moving speed of the terminal device is 120 km/h, the third indication information determined by the terminal device includes indication information for indicating the second motion state.

Specifically, the third indication information indicates the motion state of the terminal device through two bits, which are:

When the value of the two bits is "00", the third indication information indicates that the motion state of the terminal device is the first motion state.

When the value of the two bits is "01", the third indication information indicates that the motion state of the terminal device is the second motion state.

When the value of the two bits is "10", the third indication information indicates that the motion state of the terminal device is the third motion state.

When the value of the two bits is "11", the third indication information indicates that the motion state of the terminal device is the fourth motion state.

At this time, if the moving speed of the terminal device is 120 km/h, the value of the two bits in the third indication information determined by the terminal device is "01".

It should be noted that the above is only an exemplary description, and in an actual process, the terminal device may also indicate the moving speed of the terminal device in other manners, which is not limited in this application.

S501. The terminal device sends third indication information to the network device. Correspondingly, the network device receives the third indication information from the terminal device.

Wherein, the third indication information may be carried in an existing signaling message (for example, user equipment assistance information UEAssistanceInformation) exchanged between the existing network device and the terminal device; or, the third indication information may also be carried in a newly added signaling message In the message, this application does not limit this.

S502. The network device determines the first filtering parameter according to the third indication information.

It should be pointed out that the execution body of S502 is different from that of the above-mentioned S400, but the implementation manner is similar. For the specific implementation of S502, reference may be made to the above-mentioned S400, which will not be repeated in this application.

S503. The network device determines the second indication information according to the first filtering parameter.

The second indication information is used to indicate the first filtering parameter.

In a possible implementation manner, the second indication information is a new measurement configuration parameter determined by the network device after adjusting the measurement configuration parameter configured for the terminal device according to the moving speed of the terminal device. The filter parameter included in the new measurement configuration parameter is the first filter parameter.

It should be noted that after the network device determines the movement speed of the terminal device, the network device can also adjust the configuration such as the duration of the trigger event (time to trigger, TTT) timer reported by the terminal device to trigger the measurement report according to the movement speed of the terminal device. parameter, which is not limited in this application.

S504. The network device sends the second indication information to the terminal device. Correspondingly, the terminal device receives the second indication information from the network device.

Wherein, when the second indication information is a new measurement configuration parameter determined by the network device, the manner in which the network device sends the second indication information to the terminal device may be the same as the method in the prior art in which the network device sends the measurement configuration information to the terminal device. The method is the same, and this application will not describe it in detail.

It should be noted that the above describes the method for the network device to determine the moving speed of the terminal device according to the third indication information sent by the terminal device. In the actual process, the network device can also determine the moving speed of the terminal device in other ways; for example, the network device determines the terminal device according to the Doppler frequency offset of the uplink signal (such as sounding reference signal, SRS) of the terminal device The moving speed is not limited in this application.

Case 3: The first filter parameter is the filter parameter with the largest value among the second filter parameter and the third filter parameter.

The second filtering parameter is a layer 3 filtering parameter determined by the terminal device according to the moving speed of the terminal device.

The third filtering parameter is a layer 3 filtering parameter sent by the network device to the terminal device.

With reference to FIG. 3 , as shown in FIG. 6 , in case 3, the terminal device and the network device respectively execute the following S600-S601 to determine the first filtering parameter.

S600. The terminal device determines the size of the second filtering parameter and the third filtering parameter.

In an example, the size of the second filter parameter is 0.9; the size of the third filter parameter is 0.5.

S601. The terminal device determines that the filter parameter with the largest value among the second filter parameter and the third filter parameter is the first filter parameter.

That is to say, when the second filtering parameter is greater than the third filtering parameter, the terminal device determines that the first filtering parameter is the second filtering parameter.

In the case that the third filtering parameter is greater than the second filtering parameter, the terminal device determines that the first filtering parameter is the third filtering parameter.

It should be noted that, for the method for determining the second filtering parameter by the terminal device, reference may be made to the method for determining the second filtering parameter by the terminal device in the above case 1, which is not described in detail in this application.

It should be pointed out that, in case 3, the third filter parameter is the filter parameter determined by the network device according to the moving speed of the terminal device (denoted as case 3.1); or, the third filter parameter is the initial filter parameter configured by the terminal device (denoted as for case 3.2).

In the case where the third filtering parameter is a filtering parameter determined by the network device according to the moving speed of the terminal device, the method for determining the third filtering parameter by the network device and the terminal device may refer to the above-mentioned case 2 in which the network device and the terminal device determine the first filtering parameter. The method of parameters is not described in detail in this application.

In the case where the third filtering parameter is the initial filtering parameter configured by the network device for the terminal device, the method for determining the third filtering parameter by the network device and the terminal device may refer to the method for configuring the filtering parameter for the terminal device by the network device in the prior art, This application does not limit this.

All solutions in the above-mentioned embodiments of the present application can be combined on the premise that there is no contradiction.

The foregoing mainly introduces the solutions of the embodiments of the present application from the perspective of interaction between various network elements. It can be understood that, in order to implement the above-mentioned functions, each network element, for example, a network device and a terminal device, includes at least one of a hardware structure and a software module corresponding to executing each function. Those skilled in the art should easily realize that the present application can be implemented in hardware or a combination of hardware and computer software with the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein. Whether a function is performed by hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.

In this embodiment of the present application, the network device and the terminal device can be divided into functional units according to the foregoing method examples. For example, each functional unit can be divided corresponding to each function, or two or more functions can be integrated into one processing unit. The above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units. It should be noted that the division of units in the embodiments of the present application is schematic, and is only a logical function division, and other division methods may be used in actual implementation.

In the case of using an integrated unit, FIG. 7 shows a possible schematic structural diagram of the communication device (referred to as the communication device 70 ) involved in the above embodiment, and the communication device 70 includes a processing unit 701 and a communication unit 702 , and may also include a storage unit 703 . The schematic structural diagram shown in FIG. 7 may be used to illustrate the structures of the network equipment and the terminal equipment involved in the foregoing embodiments.

When the schematic structural diagram shown in FIG. 7 is used to illustrate the structure of the terminal device involved in the above embodiment, the processing unit 701 is used to control and manage the actions of the terminal device, for example, to control the terminal device to perform S200 and S200 in FIG. 2 and S201, S200 in FIG. 3, and S300 to S306, S200, S300, S400, and S302 to S306 in FIG. 4, S200, S300, S500, S501, S504, and S302 to S306 in FIG. 5, in FIG. 6 Actions performed by the terminal device in S200, S300, S600 to SS601, and S302 to S306, and/or other processes described in the embodiments of this application. The processing unit 701 may communicate with other network entities through the communication unit 702, for example, with the network device shown in FIG. 1 . The storage unit 703 is used to store program codes and data of the terminal device.

When the schematic structural diagram shown in FIG. 7 is used to illustrate the structure of the terminal equipment involved in the foregoing embodiment, the communication apparatus 70 may be the terminal equipment, or may be a chip in the terminal equipment.

When the schematic structural diagram shown in FIG. 7 is used to illustrate the structure of the network device involved in the above embodiment, the processing unit 701 is used to control and manage the actions of the network device, for example, control the network device to perform S200 and S200 in FIG. 2 and S201, S200, S306 and S307 in Fig. 3, S200, S306 and S307 in Fig. 4, S200, S501, S502, S503, S504, S306 and S307 in Fig. 5, S200, S306 and S307 in Fig. 6, and/or actions performed by the terminal device in other processes described in the embodiments of this application. The processing unit 701 may communicate with other network entities through the communication unit 702, for example, with the terminal device shown in FIG. 1 . The storage unit 703 is used to store program codes and data of the terminal device.

When the schematic structural diagram shown in FIG. 7 is used to illustrate the structure of the network equipment involved in the foregoing embodiment, the communication apparatus 70 may be the network equipment, or may be a chip in the network equipment.

Wherein, when the communication device 70 is a terminal device or a network device, the processing unit 701 may be a processor or a controller, and the communication unit 702 may be a communication interface, a transceiver, a transceiver, a transceiver circuit, a transceiver, and the like. Among them, the communication interface is a general term, which may include one or more interfaces. The storage unit 703 may be a memory. When the communication device 70 is a chip in a terminal device or a network device, the processing unit 701 may be a processor or a controller, and the communication unit 702 may be an input interface and/or an output interface, pins or circuits, and the like. The storage unit 703 may be a storage unit (for example, a register, a cache, etc.) in the chip, or a storage unit (for example, a read-only memory, referred to as a read-only memory) located outside the chip in a terminal device or a network device. ROM), random access memory (random access memory, RAM for short), etc.).

The communication unit may also be referred to as a transceiver unit. The antenna and control circuit with the transceiver function in the communication device 70 may be regarded as the communication unit 702 of the communication device 70 , and the processor with the processing function may be regarded as the processing unit 701 of the communication device 70 . Optionally, the device in the communication unit 702 for implementing the receiving function may be regarded as a receiving unit, the receiving unit is used to perform the receiving steps in the embodiments of the present application, and the receiving unit may be a receiver, a receiver, a receiving circuit, or the like.

The integrated units in FIG. 7 may be stored in a computer-readable storage medium if implemented in the form of software functional modules and sold or used as independent products. Based on this understanding, the technical solutions of the embodiments of the present application can be embodied in the form of software products in essence, or the parts that contribute to the prior art, or all or part of the technical solutions, and the computer software products are stored in a storage The medium includes several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to execute all or part of the steps of the methods described in the various embodiments of the present application. Storage media for storing computer software products include: U disk, removable hard disk, read-only memory, random access memory, magnetic disk or optical disk and other media that can store program codes.

The units in FIG. 7 may also be referred to as modules, eg, a processing unit may be referred to as a processing module.

An embodiment of the present application also provides a schematic diagram of a hardware structure of a communication device (referred to as communication device 80 ). Referring to FIG. 8 or FIG. 9 , the communication device 80 includes a processor 801 , and optionally, also includes a connection with the processor 801 memory 802.

In a first possible implementation manner, referring to FIG. 8 , the communication device 80 further includes a transceiver 803 . The processor 801, the memory 802 and the transceiver 803 are connected by a bus. The transceiver 803 is used to communicate with other devices or communication networks. Optionally, the transceiver 803 may include a transmitter and a receiver. A device in the transceiver 803 for implementing the receiving function may be regarded as a receiver, and the receiver is configured to perform the receiving steps in the embodiments of the present application. The device in the transceiver 803 for implementing the sending function may be regarded as a transmitter, and the transmitter is used to perform the sending step in the embodiment of the present application.

Based on the first possible implementation manner, the schematic structural diagram shown in FIG. 8 may be used to illustrate the structure of the network device or terminal device involved in the foregoing embodiment.

When the schematic structural diagram shown in FIG. 8 is used to illustrate the structure of the terminal equipment involved in the above embodiments, the processor 801 is used to control and manage the actions of the terminal equipment, for example, the processor 801 is used to support the terminal equipment to execute the diagram S200 and S201 in 2, S200, and S300 to S306 in FIG. 3, S200, S300, S400, and S302 to S306 in FIG. 4, S200, S300, S500, S501, S504, and S302 to S302 in FIG. 5 S306, S200, S300, S600 to SS601, and S302 to S306 in FIG. 6, and/or actions performed by the terminal device in other processes described in the embodiments of this application. The processor 801 may communicate with other network entities through the transceiver 803, for example, with the network devices shown in FIG. 1 . The memory 802 is used to store program codes and data of the terminal device.

When the schematic structural diagram shown in FIG. 8 is used to illustrate the structure of the network device involved in the above embodiment, the processor 801 is used to control and manage the actions of the network device, for example, the processor 801 is used to support the network device to execute the diagram S200 and S201 in Figure 2, S200, S306 and S307 in Figure 3, S200, S306 and S307 in Figure 4, S200, S501, S502, S503, S504, S306 and S307 in Figure 6, S200 in Figure 6 , S306 and S307, and/or actions performed by the network device in other processes described in the embodiments of this application. The processor 801 may communicate with other network entities through the transceiver 803, for example, with the terminal device shown in FIG. 1 . The memory 802 is used to store program codes and data of the network device.

In a second possible implementation, the processor 801 includes a logic circuit and at least one of an input interface and an output interface. Wherein, the output interface is used for executing the sending action in the corresponding method, and the input interface is used for executing the receiving action in the corresponding method.

Based on the second possible implementation manner, referring to FIG. 9 , the schematic structural diagram shown in FIG. 9 may be used to illustrate the structure of the network device or terminal device involved in the foregoing embodiment.

When the schematic structural diagram shown in FIG. 9 is used to illustrate the structure of the terminal equipment involved in the above-mentioned embodiments, the processor 801 is used to control and manage the actions of the terminal equipment, for example, the processor 801 is used to support the terminal equipment to execute the diagram S200 and S201 in 2, S200, and S300 to S306 in FIG. 3, S200, S300, S400, and S302 to S306 in FIG. 4, S200, S300, S500, S501, S504, and S302 to S302 in FIG. 5 S306, S200, S300, S600 to SS601, and S302 to S306 in FIG. 6, and/or actions performed by the terminal device in other processes described in the embodiments of this application. The processor 801 may communicate with other network entities, eg, with the network device shown in FIG. 1 , through at least one of an input interface and an output interface. The memory 802 is used to store program codes and data of the terminal device.

When the schematic structural diagram shown in FIG. 9 is used to illustrate the structure of the network device involved in the above embodiment, the processor 801 is used to control and manage the actions of the network device, for example, the processor 801 is used to support the network device to execute the diagram S200 and S201 in Figure 2, S200, S306 and S307 in Figure 3, S200, S306 and S307 in Figure 4, S200, S501, S502, S503, S504, S306 and S307 in Figure 6, S200 in Figure 6 , S306 and S307, and/or actions performed by the network device in other processes described in the embodiments of this application. The processor 801 may communicate with other network entities, eg, with the terminal device shown in FIG. 1 , through at least one of the input interface and the output interface. The memory 802 is used to store program codes and data of the network device.

8 and 9 may also illustrate a system chip in a network device. In this case, the actions performed by the above network device may be implemented by the system chip, and the specific actions performed may refer to the above, which will not be repeated here. 8 and 9 may also illustrate a system chip in a terminal device. In this case, the actions performed by the above-mentioned terminal device may be implemented by the system chip, and the specific actions performed may refer to the above, which will not be repeated here.

In addition, an embodiment of the present application also provides a schematic diagram of a hardware structure of a terminal device (referred to as a terminal device 100 ), for details, please refer to FIG. 10 respectively.

FIG. 10 is a schematic diagram of the hardware structure of the terminal device 100 . For the convenience of explanation, FIG. 10 only shows the main components of the terminal device. As shown in FIG. 10 , the terminal device 100 includes a processor, a memory, a control circuit, an antenna, and an input and output device.

The processor is mainly used to process communication protocols and communication data, and to control the entire terminal device, execute software programs, and process data of software programs, for example, to control the terminal device to execute S200 and S201 in FIG. S200, and S300 to S306, S200, S300, S400, and S302 to S306 in FIG. 4, S200, S300, S500, S501, S504, and S302 to S306 in FIG. 5, S200, S300, S600 in FIG. 6 to SS601, and S302 to S306, and/or actions performed by the terminal device in other processes described in the embodiments of this application. The memory is mainly used to store software programs and data. The control circuit (also referred to as a radio frequency circuit) is mainly used for the conversion of the baseband signal and the radio frequency signal and the processing of the radio frequency signal. The control circuit together with the antenna can also be called a transceiver, which is mainly used to send and receive radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, and keyboards, are mainly used to receive data input by users and output data to users.

When the terminal device is powered on, the processor can read the software program in the memory, interpret and execute the instructions of the software program, and process the data of the software program. When it is necessary to send data through the antenna, the processor performs baseband processing on the data to be sent, and outputs the baseband signal to the control circuit in the control circuit. The control circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal through the antenna in the form of electromagnetic waves. send. When data is sent to the terminal device, the control circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, which converts the baseband signal into data and processes the data.

It can be understood by those skilled in the art that, for the convenience of description, FIG. 10 only shows one memory and a processor. In an actual terminal device, there may be multiple processors and memories. The memory may also be referred to as a storage medium or a storage device, etc., which is not limited in this embodiment of the present application.

As an optional implementation manner, the processor may include a baseband processor and a central processing unit. The baseband processor is mainly used to process communication protocols and communication data, and the central processing unit is mainly used to control the entire terminal device, execute A software program that processes data from the software program. The processor in FIG. 10 integrates the functions of the baseband processor and the central processing unit. Those skilled in the art can understand that the baseband processor and the central processing unit may also be independent processors, interconnected by technologies such as a bus. Those skilled in the art can understand that a terminal device may include multiple baseband processors to adapt to different network standards, a terminal device may include multiple central processors to enhance its processing capability, and various components of the terminal device may be connected through various buses. The baseband processor can also be expressed as a baseband processing circuit or a baseband processing chip. The central processing unit can also be expressed as a central processing circuit or a central processing chip. The function of processing the communication protocol and communication data may be built in the processor, or may be stored in the memory in the form of a software program, and the processor executes the software program to realize the baseband processing function.

FIG. 11 is a schematic diagram of the hardware structure of the network device 110 . The network device 110 may include one or more radio frequency units, such as a remote radio unit (remote radio unit, RRU for short) 1101 and one or more baseband units (baseband unit, BBU for short) (also referred to as a digital unit (digital unit, abbreviated as BBU) DU)) 1102.

The RRU 1101 may be called a transceiver unit, a transceiver, a transceiver circuit, or a transceiver, etc., which may include at least one antenna 1111 and a radio frequency unit 1111 . The RRU1101 part is mainly used for the transceiver of radio frequency signals and the conversion of radio frequency signals and baseband signals. The RRU 1101 and the BBU 1102 may be physically set together, or may be physically separated, for example, distributed base stations.

The BBU1102 is the control center of the network equipment, which can also be called a processing unit, and is mainly used to complete baseband processing functions, such as channel coding, multiplexing, modulation, and spread spectrum.

In one embodiment, the BBU 1102 may be composed of one or more boards, and the multiple boards may jointly support a wireless access network (such as an LTE network) of a single access standard, or may separately support wireless access systems of different access standards. Access network (such as LTE network, 5G network or other network). The BBU 1102 also includes a memory 1121 and a processor 1122, and the memory 1121 is used to store necessary instructions and data. The processor 1122 is used to control the network device to perform necessary actions. The memory 1121 and processor 1122 may serve one or more single boards. That is to say, the memory and processor can be provided separately on each single board. It can also be that multiple boards share the same memory and processor. In addition, necessary circuits may also be provided on each single board.

It should be understood that the network device 110 shown in FIG. 11 can execute S200 and S201 in FIG. 2 , S200, S306 and S307 in FIG. 3 , S200, S306 and S307 in FIG. 4 , and S200, S501 and S502 in FIG. 5 . , S503 , S504 , S306 and S307 , S200 , S306 and S307 in FIG. 6 , and/or actions performed by the network device in other processes described in the embodiments of this application. The operations, functions, or, operations and functions of each module in the network device 110 are respectively set to implement the corresponding processes in the foregoing method embodiments. For details, reference may be made to the descriptions in the foregoing method embodiments. To avoid repetition, the detailed descriptions are appropriately omitted here.

In the implementation process, each step in the method provided in this embodiment may be completed by an integrated logic circuit of hardware in a processor or an instruction in the form of software. The steps of the method disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware processor, or executed by a combination of hardware and software modules in the processor.

The processor in this application may include, but is not limited to, at least one of the following: a central processing unit (CPU), a microprocessor, a digital signal processor (DSP), a microcontroller (MCU), or Artificial intelligence processors and other types of computing devices that run software, each computing device may include one or more cores for executing software instructions to perform operations or processing. The processor can be a separate semiconductor chip, or can be integrated with other circuits into a semiconductor chip. For example, it can form a SoC (on-chip) with other circuits (such as codec circuits, hardware acceleration circuits, or various bus and interface circuits). system), or can also be integrated in the ASIC as a built-in processor of an ASIC, and the ASIC integrated with the processor can be packaged separately or can be packaged with other circuits. In addition to a core for executing software instructions for operation or processing, the processor may further include necessary hardware accelerators, such as field programmable gate array (FPGA), PLD (programmable logic device) , or a logic circuit that implements dedicated logic operations.

The memory in this embodiment of the present application may include at least one of the following types: read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (random access memory) , RAM) or other types of dynamic storage devices that can store information and instructions, and can also be Electrically Erasable Programmable Read-Only Memory (EEPROM). In some scenarios, the memory may also be compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compact disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.) , a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, without limitation.

Embodiments of the present application further provide a computer-readable storage medium, including instructions, which, when executed on a computer, cause the computer to execute any of the foregoing methods.

Embodiments of the present application also provide a computer program product containing instructions, which, when run on a computer, enables the computer to execute any of the above methods.

The embodiment of the present application also provides a communication system, including: the above-mentioned network device and terminal device.

An embodiment of the present application further provides a chip, the chip includes a processor and an interface circuit, the interface circuit is coupled to the processor, the processor is used to run a computer program or instructions to implement the above method, and the interface circuit is used to connect with the processor. communicate with other modules outside the chip.

In the above-mentioned embodiments, it may be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using a software program, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, all or part of the processes or functions described in the embodiments of the present application are generated. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable device. Computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website site, computer, server, or data center over a wire (e.g. Coaxial cable, optical fiber, digital subscriber line (DSL) or wireless (such as infrared, wireless, microwave, etc.) means to transmit to another website site, computer, server or data center. Computer-readable storage media can be any available media that can be accessed by a computer or data storage devices including one or more servers, data centers, etc., that can be integrated with the media. Useful media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, DVD), or semiconductor media (eg, solid state disks (SSD)), and the like.

Finally, it should be noted that: the above are only specific embodiments of the present application, but the protection scope of the present application is not limited to this, and any changes or replacements within the technical scope disclosed in the present application should be covered by the present application. within the scope of protection of the application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

A cell measurement method, comprising:

The terminal device receives the measurement configuration information from the network device;

The terminal device sends a measurement report to the network device; the measurement report is determined according to the measurement configuration information, the first signal strength of the cell to be measured, the second signal strength of the cell to be measured, and the first filter parameter; The first signal strength is the current signal strength of the cell to be measured measured by the terminal device, and the second signal strength is the signal strength determined by the terminal device according to the historical measurement result of the cell to be measured; the The first filtering parameter is a layer 3 filtering parameter determined according to the moving speed of the terminal device.
The method according to claim 1, wherein the first filtering parameter is a layer 3 filtering parameter determined by the terminal device according to the moving speed of the terminal device.
The method according to claim 1, wherein the first filtering parameter is a layer 3 filtering parameter determined by the network device according to the moving speed of the terminal device.
The method of claim 3, further comprising:

The terminal device receives second indication information from the network device, where the second indication information is used to indicate the first filtering parameter.
The method according to claim 4, wherein before the terminal device receives the second indication information from the network device, the method further comprises:

The terminal device sends third indication information to the network device, where the third indication information is used to indicate the moving speed of the terminal device.
The method according to claim 1, wherein the first filter parameter is the filter parameter with the largest value among the second filter parameter and the third filter parameter;

Wherein, the second filtering parameter is a layer 3 filtering parameter determined by the terminal device according to the moving speed of the terminal device;

The third filtering parameter is a layer 3 filtering parameter sent by the network device to the terminal device.
The method according to claim 6, wherein the third filter parameter is specifically: a layer 3 filter parameter determined by the network device according to the moving speed of the terminal device and sent to the terminal device.
A communication device, comprising: a processing unit and a communication unit;

the processing unit, configured to instruct the communication unit to receive the measurement configuration information from the network device;

The processing unit is further configured to instruct the communication unit to send a measurement report to the network device; the measurement report is based on the measurement configuration information, the first signal strength of the cell to be measured, and the second signal strength of the cell to be measured. , and the first filtering parameter is determined; the first signal strength is the current signal strength of the cell to be measured measured by the terminal equipment, and the second signal strength is the historical measurement result of the cell to be measured by the terminal equipment according to the The determined signal strength; the first filtering parameter is a layer 3 filtering parameter determined according to the moving speed of the terminal device.
The apparatus according to claim 8, wherein the first filtering parameter is a layer 3 filtering parameter determined by the terminal device according to the moving speed of the terminal device.
The apparatus according to claim 8, wherein the first filtering parameter is a layer 3 filtering parameter determined by the network device according to the moving speed of the terminal device.
The apparatus according to claim 10, wherein the processing unit is further configured to instruct the communication unit to receive second indication information from the network device, where the second indication information is used to instruct the first a filter parameter.
The apparatus according to claim 11, wherein the processing unit is further configured to instruct the communication unit to send third indication information to the network device, where the third indication information is used to instruct the terminal device movement speed.
The device according to claim 8, wherein the first filter parameter is the filter parameter with the largest value among the second filter parameter and the third filter parameter;

Wherein, the second filtering parameter is a layer 3 filtering parameter determined by the terminal device according to the moving speed of the terminal device;

The third filtering parameter is a layer 3 filtering parameter sent by the network device to the terminal device.
The apparatus according to claim 13, wherein the third filter parameter is specifically: a layer 3 filter parameter determined by the network device according to the moving speed of the terminal device and sent to the terminal device.
A communication device, characterized by comprising a processor and an interface circuit, the interface circuit being configured to receive signals from other communication devices other than the communication device and transmit to the processor or transfer signals from the processor The signal is sent to other communication devices other than the communication device, and the processor is used to implement the method according to any one of claims 1 to 7 by means of a logic circuit or executing code instructions.
A computer-readable storage medium, comprising computer-executable instructions, which, when executed on a computer, cause the computer to perform the method according to any one of claims 1 to 7.
A computer program product, comprising computer-executable instructions, which, when executed on a computer, cause the computer to perform the method according to any one of claims 1 to 7.