WO2019191992A1

WO2019191992A1 - Method for cell measurement, terminal device, and network device

Info

Publication number: WO2019191992A1
Application number: PCT/CN2018/082045
Authority: WO
Inventors: 唐珣; 柴丽; 张戬
Original assignee: 华为技术有限公司
Priority date: 2018-04-04
Filing date: 2018-04-04
Publication date: 2019-10-10
Also published as: CN111937434A; CN111937434B

Abstract

The present application provides a method for cell measurement, a terminal device, and a network device. The method comprises: a terminal device receives radio resource control (RRC) connection release information sent by a network device, the RRC connection release information comprising at least one of a measurement frequency list for idle state measurement, a cell list, and the duration of a timer; when the terminal device performs reselection from a first resident cell to a second resident cell, the terminal device determines, on the basis of the frequency of the second resident cell, and at least one of the measurement frequency list, the cell list, and the duration of the timer, whether to perform idle state measurement on the second resident cell. According to the present method for cell measurement, terminal device, and network device, by means of the idle state measurement indicated by the RRC connection release information, the subsequent idle state measurement behavior can be determined after cell reselection.

Description

Cell measurement method, terminal device and network device

Technical field

The present application relates to the field of communications, and more particularly to a method, a terminal device and a network device for cell measurement.

Background technique

In a communication system, for example, a 5th generation (5G) system, a carrier aggregation (CA) technology may be introduced to improve a data transmission rate of a user equipment (UE).

For a UE in an idle state, if you need to use CA technology for data transmission, you need to provide multi-carrier measurement results to select a suitable secondary cell (SCell). After adding the secondary carrier, you can use CA technology to perform data. transmission. In order to further reduce the process, a method for indicating an idle state measurement configuration in a Radio Resource Control (RRC) connection release message or a broadcast message is proposed, so that the candidate carrier and the cell can be used when the UE is in an idle state. The measurement is performed, and the measurement result is reported to the base station directly after the UE enters the connected state, so that the base station can quickly configure the SCell for the UE.

When the UE is in the idle state, the UE may replace different camping cells, which is called cell reselection, as the UE moves. Since the deployment of carrier aggregation is usually in a wide range, and the broadcast state indicates that the idle state measurement has a large amount of signaling overhead, it is more common to use the RRC Connection Release message to indicate the idle state measurement. Therefore, for the idle state measurement indicated by the RRC connection release message, it is necessary to continue the idle state measurement after the cell reselection.

Summary of the invention

The present application provides a cell measurement method, a terminal device, and a network device, so that the idle state measurement indicated by the RRC connection release message can determine the subsequent measurement behavior in the idle state after the cell reselection.

A first aspect provides a method for cell measurement, including: receiving, by a terminal device, radio resource control RRC connection release information sent by a network device, where the RRC connection release information includes a measurement frequency list, a cell list, and At least one of a time length of the timer; when the terminal device reselects from the first camped cell to the second camped cell, the terminal device is based on the frequency of the second camped cell, a list of measured frequencies And determining, by at least one of a cell list and a time length of the timer, whether to perform idle state measurement in the second camping cell.

In the embodiment of the present application, after the cell reselection of the terminal device in the idle state, at least one of the measurement frequency, the list cell list, and the time length of the timer included in the reselected cell and the RRC connection release information is determined. Therefore, the terminal device can implement the measurement behavior of the terminal device in the idle state after the cell reselection according to at least one of the measurement frequency list indicated by the RRC connection release information, the cell list, and the time length of the timer.

In some possible implementation manners, the terminal device determines whether the second resident is based on at least one of a frequency of the second camping cell, a measurement frequency list, a cell list, and a time length of a timer. Performing, by the cell, the idle state measurement, including: if at least one of the following is met, the terminal device determines to perform measurement in the second camped cell to obtain a measurement result: a frequency of the second camped cell and the The frequency of the first camping cell is the same; the frequency of the second camping cell is in the measurement frequency list; and the second camping cell is in the cell list.

In some possible implementation manners, the terminal device restarts the timer when reselecting to the second camping cell.

In the foregoing technical solution, after the cell reselection occurs in the terminal device, the timer is restarted, so that the duration of the measurement of the cell after the reselection of the terminal device becomes longer, so that the measurement error can be reduced, and the obtained measurement result can be more accurate.

In some possible implementation manners, the idle state measurement configuration of the terminal device in the second camping cell is the same as the idle state measurement configuration in the first camping cell, where the idle state measurement configuration includes the At least one of a frequency list, the cell list, a time length of a timer, and a measurement amount.

In some possible implementations, the method further includes: the terminal device obtaining the updated measurement result by using a layer three filtering model based on the measurement result.

In the above technical solution, after obtaining the measurement result, the terminal device can further update the measurement result by using the layer three filtering model, so that the measurement result can be more accurate and stable, and the secondary cell selected by the network device according to the updated measurement result is more suitable. Terminal Equipment.

In some possible implementation manners, the filtering parameter in the layer three filtering model is indicated by the first indication information received by the terminal device.

In some possible implementations, the method further includes: the terminal device saving historical measurement results.

In the above technical solution, the terminal device saves the measurement results obtained in different camping cells each time, thereby avoiding waste of information.

In some possible implementation manners, when the number of the measurement results saved by the terminal device reaches a maximum value, the terminal device saves the historical measurement result, including: the terminal device does not save the multi-carrier measurement corresponding to the current resident cell. The result is: or the terminal device deletes the multi-carrier measurement result corresponding to the earliest resident cell that is saved; or if the multi-carrier measurement result corresponding to the current camping cell exists in the historical measurement result saved by the terminal device, The multi-carrier measurement result is updated to the current measurement result.

The foregoing technical solution determines a policy for how to save the measurement result corresponding to the current camped cell when the number of historical measurement results saved by the terminal device reaches a maximum value, so that the historical measurement result saved by the terminal device reaches a maximum value afterwards There can be a unified saving strategy to avoid the problem that the terminal device blindly saves the measurement results.

In some possible implementations, the method further includes: the terminal device sending the second indication information to the network device, where the second indication information is used to indicate that the terminal device saves the historical measurement result.

In some possible implementations, the method further includes: the terminal device transmitting the historical measurement result to the network device.

The foregoing technical solution feeds back the saved historical measurement result to the network device after the terminal device enters the connected state, so that the network device can obtain the signal strength of different camping cells according to the historical measurement result, thereby facilitating network optimization.

In some possible implementations, the method further includes: when the terminal device reselects to the first camping cell, based on the idle state measurement configuration, the terminal device is in the first camp The cell performs measurements.

A second aspect provides a method for cell measurement, including: receiving, by a terminal device, first indication information sent by a network device, where the first indication information includes a measurement frequency list, a cell list, a time length of a timer, and/or The measurement device saves the historical measurement result, wherein the historical measurement result is obtained according to the measurement frequency list, the cell list, the time length of the timer, and/or the multi-carrier measurement performed by the measurement quantity. .

In some possible implementations, the method further includes: the terminal device obtaining the updated historical measurement result by using a layer three filtering model based on the historical measurement result.

In some possible implementations, the filtering parameters in the layer three filtering model are indicated by the third indication information.

In some possible implementations, the method further includes: when the terminal device reselects the camped cell corresponding to the historical measurement result, based on the measured frequency list, the cell list, the time length of the timer, and/or Or, the measured quantity is measured in the camping cell corresponding to the historical measurement result.

A third aspect provides a method for cell measurement, including: receiving, by a terminal device, first indication information sent by a network device, where the first indication information includes a measurement frequency list, a cell list, a time length of a timer, and/or And measuring, by the terminal device, idle state measurement in the current camping cell based on the measured frequency list, the cell list, the time length of the timer, and/or the measured quantity, to obtain the first measurement result; The terminal device obtains the second measurement result by using the layer three filtering model based on the first measurement result.

In some possible implementations, the filtering parameters in the filtering model are indicated by the first indication information.

In some possible implementations, before the storing, by the terminal device, the second measurement result, the method further includes: when the number of measurement results saved by the terminal device reaches a maximum value, the terminal device saves a history. The measurement result includes: the terminal device does not save the multi-carrier measurement result corresponding to the currently camped cell; or the terminal device deletes the multi-carrier measurement result corresponding to the earliest resident cell that is saved; or if the terminal device saves the location The multi-carrier measurement result corresponding to the current camping cell exists in the historical measurement result, and the multi-carrier measurement result is updated to the current measurement result.

A fourth aspect provides a method for cell measurement, including: the network device transmitting radio resource control RRC connection release information to a terminal device, where the RRC connection release information includes a measurement frequency list, a cell list, and a cell list for idle state measurement, and At least one of a length of time of the timer; wherein, when the terminal device reselects from the first camped cell to the second camped cell, the measured frequency list, the cell list, and the time length of the timer At least one item is used by the terminal device to determine whether to perform idle state measurement in the second camped cell.

In some possible implementation manners, the idle state measurement configuration of the second camping cell is the same as the idle state measurement configuration of the first camping cell, where the idle state measurement configuration includes the frequency list, the At least one of a cell list, a time length of a timer, and a measurement amount.

In some possible implementations, the method further includes: the network device sending first indication information to the terminal device, where the first indication information is used to indicate a filtering parameter in a layer three filtering model, the layer The triple filtering model is used to update the measurement result obtained by the terminal device in the second camping cell.

In some possible implementations, the method further includes: the network device receiving the first indication information sent by the terminal device, where the first indication information is used to indicate that the terminal device saves the historical measurement result .

In some possible implementations, the method further includes: the network device receiving the historical measurement result sent by the terminal device.

A fifth aspect provides a method for measuring a cell, where the network device sends the first indication information to the terminal device, where the first indication information includes a measurement frequency list, a cell list, a time length of the timer, and/or, The measurement amount, the measurement frequency list, the cell list, the time length of the timer, and/or the measurement amount is used to perform multi-carrier measurement to obtain a historical measurement result.

In some possible implementations, the method further includes: the network device receiving the second indication information sent by the terminal device, where the second indication information is used to indicate that the terminal device saves the historical measurement result.

In some possible implementations, the method further includes: the network device sending third indication information to the terminal device, where the third indication information is used to indicate a filtering parameter in a layer three filtering model, the layer A triple filtering model is used to update the historical measurements.

The sixth aspect provides a method for cell measurement, including: the network device sends first indication information to the terminal device, where the first indication information includes a measurement frequency list, a cell list, a time length of the timer, and/or, The measurement amount; the measurement frequency list, the cell list, the time length of the timer, and/or the measurement amount is used to perform idle state measurement in the current camping cell to obtain the first measurement result.

In some possible implementation manners, the first indication information is used to indicate a filtering parameter in a layer three filtering model, and the filtering parameter is used to update the first measurement result to obtain a second measurement result.

In some possible implementations, the network device receives second indication information that is sent by the terminal device, where the second indication information is used to indicate that the terminal device saves a historical measurement result.

According to a seventh aspect, a terminal device includes: a communication unit, configured to receive radio resource control RRC connection release information sent by a network device, where the RRC connection release information includes a measurement frequency list and a cell list for idle state measurement At least one of a length of time of the timer and the processing unit, configured to, when reselecting from the first camping cell to the second camping cell, based on the frequency of the second camping cell, a list of measured frequencies, and a cell And determining at least one of a time period of the list and the timer to determine whether to perform an idle state measurement in the second camped cell.

In some possible implementations, the processing unit specifically includes: determining to perform measurement in the second camped cell to obtain a measurement result: at least one frequency of the second camping cell, if at least one of the following is satisfied The frequency of the first camping cell is the same; the frequency of the second camping cell is in the measurement frequency list; and the second camping cell is in the cell list.

In some possible implementations, the processing unit further includes: restarting the timer when reselecting to the second camping cell.

In some possible implementations, the idle state measurement configuration of the second camping cell is the same as the idle state measurement configuration of the first camping cell, where the idle state measurement configuration includes the frequency list, At least one of a cell list, a time length of a timer, and a measurement amount.

In some possible implementation manners, the processing unit further includes: obtaining, according to the measurement result, the updated measurement result by using a layer three filtering model.

In some possible implementations, the filtering parameters in the layer three filtering model are indicated by the received first indication information.

In some possible implementations, the processing unit further includes: saving a historical measurement result.

In some possible implementation manners, when the number of saved measurement results reaches a maximum value, the processing unit further includes: not saving the multi-carrier measurement result corresponding to the currently camped cell; or deleting the saved first-preferred cell corresponding to the The multi-carrier measurement result is updated; or if the multi-carrier measurement result corresponding to the current camping cell exists in the saved historical measurement result, the multi-carrier measurement result is updated to the current measurement result.

In some possible implementation manners, the communications unit further includes: sending, to the network device, second indication information, where the second indication information is used to indicate that the historical measurement result is saved.

In some possible implementations, the communications unit further includes transmitting the historical measurement result to the network device.

In some possible implementations, the processing unit further includes: when reselecting to the first camping cell, performing measurement on the first camping cell based on the idle state measurement configuration.

In an eighth aspect, a terminal device is provided, comprising means for performing the method of any of the above-described second aspect or any of the possible implementations of the second aspect.

In a ninth aspect, there is provided a terminal device comprising means for performing the method of any of the above-described third or third aspects of the possible implementation.

A tenth aspect, a network device, including: a communication unit, configured to send, to a terminal device, radio resource control RRC connection release information, where the RRC connection release information includes a measurement frequency list and a cell list for idle state measurement, And at least one of a length of time of the timer; wherein, when the terminal device reselects from the first camped cell to the second camped cell, the measured frequency list, the cell list, and the time length of the timer At least one of the at least one is used by the terminal device to determine whether to perform idle state measurement in the second camped cell.

In some possible implementation manners, the communications unit further includes: sending, to the terminal device, first indication information, where the first indication information is used to indicate a filtering parameter in a layer three filtering model, the layer three filtering model And a method for updating a measurement result obtained by the terminal device in the second camping cell.

In some possible implementations, the communications unit further includes: receiving first indication information sent by the terminal device, where the first indication information is used to indicate that the terminal device saves the historical measurement result.

In some possible implementations, the communications unit further includes: receiving the historical measurement result sent by the terminal device.

In an eleventh aspect, a network device is provided, comprising means for performing the method of any of the above fifth or fifth possible implementations.

According to a twelfth aspect, there is provided a network device comprising means for performing the method of any of the above-described sixth or sixth possible implementations.

In a thirteenth aspect, a terminal device is provided, the terminal device comprising a processor for implementing the functions in the method described in the first aspect above. The terminal device may also include a memory for storing program instructions and data. The memory is coupled to the processor, and the processor can invoke and execute program instructions stored in the memory for implementing the functions of the method described in the first aspect above. The terminal device may also include a transceiver (or receiver) for the terminal device to communicate with other devices.

In a fourteenth aspect, a terminal device is provided, the terminal device comprising a processor for implementing the functions in the method described in the second aspect above. The terminal device may also include a memory for storing program instructions and data. The memory is coupled to the processor, and the processor can invoke and execute program instructions stored in the memory for implementing the functions of the method described in the second aspect above. The terminal device may also include a transceiver (or receiver) for the terminal device to communicate with other devices.

In a fifteenth aspect, a terminal device is provided, the terminal device comprising a processor for implementing the functions in the method described in the third aspect above. The terminal device may also include a memory for storing program instructions and data. The memory is coupled to the processor, and the processor can invoke and execute program instructions stored in the memory for implementing the functions of the method described in the third aspect above. The terminal device may also include a transceiver (or receiver) for the terminal device to communicate with other devices.

In a sixteenth aspect, a network device is provided, the network device comprising a processor for implementing the functions of the method described in the fourth aspect above. The network device can also include a memory for storing program instructions and data. The memory is coupled to the processor, and the processor can invoke and execute program instructions stored in the memory for implementing the functions of the method described in the fourth aspect above. The network device may also include a transceiver (or receiver) for the network device to communicate with other devices.

In a seventeenth aspect, a network device is provided, the network device comprising a processor for implementing the functions in the method described in the fifth aspect above. The network device can also include a memory for storing program instructions and data. The memory is coupled to the processor, and the processor can invoke and execute program instructions stored in the memory for implementing the functions of the method described in the fifth aspect above. The network device may also include a transceiver (or receiver) for the network device to communicate with other devices.

In an eighteenth aspect, a network device is provided, the network device comprising a processor for implementing the functions in the method described in the sixth aspect above. The network device can also include a memory for storing program instructions and data. The memory is coupled to the processor, and the processor can invoke and execute program instructions stored in the memory for implementing the functions of the method described in the sixth aspect above. The network device may also include a transceiver (or receiver) for the network device to communicate with other devices.

According to a nineteenth aspect, there is provided a computer storage medium comprising computer instructions which, when executed on a computer, cause the computer to perform any of the possible aspects of the first or fourth aspect described above The method described in the implementation.

According to a twentieth aspect, there is provided a computer storage medium comprising computer instructions which, when executed on a computer, cause the computer to perform any of the possible aspects of the second or fifth aspect described above The method described in the implementation.

In a twenty-first aspect, there is provided a computer storage medium comprising computer instructions which, when executed on a computer, cause the computer to perform any of the possible aspects of the third or sixth aspect described above The method described in the implementation.

DRAWINGS

1 is a schematic diagram of a system in accordance with an embodiment of the present application.

FIG. 2 is a schematic interaction diagram of a cell measurement method according to an embodiment of the present application.

FIG. 3 is a schematic interaction diagram of a cell measurement method according to another embodiment of the present application.

4 is a schematic interaction diagram of a cell measurement method according to another embodiment of the present application.

FIG. 5 is a schematic diagram of a saved camped cell in an embodiment of the present application.

FIG. 6 is a schematic block diagram of a terminal device according to an embodiment of the present application.

FIG. 7 is a schematic block diagram of a terminal device according to an embodiment of the present application.

FIG. 8 is a schematic block diagram of a network device according to an embodiment of the present application.

FIG. 9 is a schematic block diagram of a network device according to an embodiment of the present application.

detailed description

The technical solutions in the present application will be described below with reference to the accompanying drawings.

The technical solution of the embodiment of the present application can be applied to various communication systems, for example, a global system of mobile communication (GSM) system, a code division multiple access (CDMA) system, and a wideband code division multiple access. (wideband code division multiple access, WCDMA) system, general packet radio service (GPRS), long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE Time division duplex (TDD), universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) communication system, future fifth generation (5th generation, 5G) system or new radio (NR).

By way of example and not limitation, in the embodiments of the present application, a terminal device may also be referred to as a UE, an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, and a terminal. , a wireless communication device, a user agent, or a user device. The terminal device may be a staion (ST) in the WLAN, and may be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, and a personal digital processing. (personal digital assistant, PDA) device, handheld device with wireless communication capabilities, computing device or other processing device connected to a wireless modem, in-vehicle device, wearable device, and next-generation communication system, for example, a terminal device in a 5G network or Terminal equipment in a public land mobile network (PLMN) network in the future.

By way of example and not limitation, in the embodiment of the present application, the terminal device may also be a wearable device. A wearable device, which can also be called a wearable smart device, is a general term for applying wearable technology to intelligently design and wear wearable devices such as glasses, gloves, watches, clothing, and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are more than just a hardware device, but they also implement powerful functions through software support, data interaction, and cloud interaction. Generalized wearable smart devices include full-featured, large-size, non-reliable smartphones for full or partial functions, such as smart watches or smart glasses, and focus on only one type of application, and need to work with other devices such as smartphones. Use, such as various smart bracelets for smart signs monitoring, smart jewelry, etc.

In addition, in the embodiment of the present application, the terminal device may also be a terminal device in an Internet of Things (IoT) system, and the IoT is an important component of future information technology development, and its main technical feature is to pass the article through the communication technology. Connected to the network to realize an intelligent network of human-machine interconnection and physical interconnection.

The network device may be a device for communicating with the mobile device, such as a network device, and the network device may be an access point (AP) in the WLAN, a base transceiver station (BTS) in GSM or CDMA, or may be A base station (nodeB, NB) in WCDMA may also be an evolved base station (evolutional node B, eNB or eNodeB) in LTE, or a relay station or an access point, or an in-vehicle device, a wearable device, and a network in a future 5G network. A device or a network device in a future evolved PLMN network.

In addition, in the embodiment of the present application, the network device provides a service for the cell, and the terminal device communicates with the network device by using a transmission resource (for example, a frequency domain resource, or a spectrum resource) used by the cell, where the cell may be a network device. (e.g., a base station) corresponding to a cell, the cell may belong to a macro base station, or may belong to a base station corresponding to a small cell, where the small cell may include: a metro cell, a micro cell, and a pico cell. (pico cell), femto cell, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.

In addition, multiple carriers can work at the same frequency on the carrier in the LTE system or the 5G system. In some special scenarios, the concept of the carrier and the cell can be considered to be equivalent. For example, in a CA scenario, when a secondary carrier is configured for a UE, the carrier index of the secondary carrier and the cell ID of the secondary cell working in the secondary carrier are also carried. In this case, it can be considered. The carrier is equivalent to the concept of a cell, for example, the UE accessing one carrier and accessing one cell are equivalent.

In the embodiment of the present application, the terminal device or the network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. The hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and a memory (also referred to as main memory). The operating system may be any one or more computer operating systems that implement business processing through a process, such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a Windows operating system. The application layer includes applications such as browsers, contacts, word processing software, and instant messaging software. Moreover, the specific structure of the execution body of the method provided by the embodiment of the present application is not particularly limited as long as the program of the code of the method provided by the embodiment of the present application can be run by using the program according to the present application. The method can be communicated. For example, the execution body of the method provided by the embodiment of the present application may be a terminal device or a network device, or a function module that can call a program and execute a program in the terminal device or the network device.

Furthermore, various aspects or features of embodiments of the present application can be implemented as a method, apparatus, or article of manufacture using standard programming and/or engineering techniques. The term "article of manufacture" as used in this application encompasses a computer program accessible from any computer-readable device, carrier, or media. For example, a computer readable medium may include, but is not limited to, a magnetic storage device (eg, a hard disk, a floppy disk, or a magnetic tape, etc.), such as a compact disc (CD), a digital versatile disc (DVD). Etc.), smart cards and flash memory devices (eg, erasable programmable read-only memory (EPROM), cards, sticks or key drivers, etc.). Additionally, various storage media described herein can represent one or more devices and/or other machine-readable media for storing information. The term "machine-readable medium" may include, without limitation, a wireless channel and various other mediums capable of storing, containing, and/or carrying instructions and/or data.

1 is a schematic diagram of a system 100 in which a communication method of an embodiment of the present application can be applied. As shown in FIG. 1, the system 100 includes a network device 102, which may include one antenna or multiple antennas, such as

antennas

104, 106, 108, 110, 112, and 114. Additionally, network device 102 may additionally include a transmitter chain and a receiver chain, as will be understood by those of ordinary skill in the art, which may include multiple components related to signal transmission and reception (eg, processor, modulator, multiplexer) , demodulator, demultiplexer or antenna, etc.).

Network device 102 can communicate with a plurality of terminal devices, such as terminal device 116 and terminal device 122. However, it will be appreciated that network device 102 can communicate with any number of terminal devices similar to terminal device 116 or terminal device 122.

Terminal devices

116 and 122 may be, for example, cellular telephones, smart phones, portable computers, handheld communication devices, handheld computing devices, satellite radios, global positioning systems, PDAs, and/or any other suitable for communicating over wireless communication system 100. device.

As shown in FIG. 1, terminal device 116 is in communication with

antennas

112 and 114, wherein

antennas

112 and 114 transmit information to terminal device 116 over a forward link (also referred to as downlink) 118 and through the reverse link (also Information referred to as uplink 120 receives information from terminal device 116. In addition, terminal device 122 is in communication with

antennas

104 and 106, wherein

antennas

104 and 106 transmit information to terminal device 122 over forward link 124 and receive information from terminal device 122 over reverse link 126.

For example, in a frequency division duplex (FDD) system, for example, forward link 118 can use a different frequency band than reverse link 120, and forward link 124 can be used differently than reverse link 126. Frequency band.

As another example, in a time division duplex (TDD) system and a full duplex system, the forward link 118 and the reverse link 120 can use a common frequency band, a forward link 124, and a reverse link. Link 126 can use a common frequency band.

Each antenna (or set of antennas consisting of multiple antennas) and/or regions designed for communication is referred to as a sector of network device 102. For example, the antenna group can be designed to communicate with terminal devices in sectors of the network device 102 coverage area. The network device can transmit signals to all of the terminal devices in its corresponding sector through a single antenna or multiple antenna transmit diversity. In the course of network device 102 communicating with

terminal devices

116 and 122 via

forward links

118 and 124, respectively, the transmit antenna of network device 102 may also utilize beamforming to improve the signal to noise ratio of

forward links

118 and 124. Moreover, when the network device 102 utilizes beamforming to transmit signals to the randomly dispersed

terminal devices

116 and 122 in the associated coverage area, as compared to the manner in which the network device transmits signals to all of its terminal devices through single antenna or multi-antenna transmit diversity, Mobile devices in neighboring cells are subject to less interference.

At a given time, network device 102, terminal device 116, or terminal device 122 may be a wireless communication transmitting device and/or a wireless communication receiving device. When transmitting data, the wireless communication transmitting device can encode the data for transmission. In particular, the wireless communication transmitting device may acquire (eg, generate, receive from other communication devices, or store in memory, etc.) a certain number of data bits to be transmitted over the channel to the wireless communication receiving device. Such data bits may be included in a transport block (or multiple transport blocks) of data that may be segmented to produce multiple code blocks.

For the convenience of description, in the embodiment of the present application, the technical solution provided by the embodiment of the present application is described by using the terminal device as the UE and the network device as the base station, but the application is not limited thereto.

In the description of the embodiment, the delay that may exist in the uplink and downlink is ignored, and it is assumed that the transmission time of the network device is the same as the reception time of the terminal device. For the processing corresponding to the transmission of the network device and the reception of the terminal device, the embodiment is described from the perspective of the terminal device side. Those skilled in the art can understand that the terminal device receives from the network device, which means that the network device performs the transmission.

The method 200 for cell measurement in the embodiment of the present application is described in detail below with reference to FIG. 2 . 2 is a schematic interaction diagram of a cell measurement method according to an embodiment of the present application. The method of FIG. 2 can include 210-220.

In 210, the UE receives the RRC connection release information sent by the base station, where the RRC connection release information includes at least one of a measurement frequency list for the idle state measurement, a cell list, and a time length of the timer.

After the UE receives the RRC connection release information sent by the base station, the UE enters an idle state, and the timer is started. The RRC connection release information includes the measurement configuration of the idle state, and the UE can start the idle state measurement according to the measurement configuration.

Optionally, the measurement configuration may include a list of measurement frequencies, a list of cells corresponding to each frequency, a length of time of the timer, and/or a measurement amount that needs to be measured and reported.

The timer can be used to determine the measurement duration of the UE in the camped cell.

Optionally, the measurement quantity may include at least one of: reference signal received power (RSRP), reference signal receiving quality (RSRQ), reference signal signal to interference plus noise ratio (reference signal-signal to interference plus noise ratio, RS-SINR).

Alternatively, the frequency in the measurement frequency list may have a corresponding cell list.

Alternatively, the frequency in the measurement frequency list may not have a corresponding cell list.

For example, frequency 1 in the measurement frequency list corresponds to cell 1, cell 2, and cell 3, and frequency 2 in the measurement frequency list does not have a corresponding cell.

Optionally, the base station may send the RRC connection release information to the UE at any time when the UE is in the connected state.

As an example, when the UE needs to perform cell reselection, the base station may send RRC connection release information to the UE. After receiving the RRC connection release information, the UE enters an idle state from the connected state.

As an example, when the system load is too large, the base station may send RRC connection release information to the UE.

It should be understood that, in the embodiment of the present application, the term “and/or” is merely an association relationship describing an associated object, indicating that there may be three relationships, for example, A and/or B, which may indicate that A exists separately, and There are three cases of A and B, and B alone.

In 220, when the UE reselects from the first camping cell to the second camping cell, the UE is based on at least one of a frequency of the second camping cell, a measurement frequency list, a cell list, and a time length of the timer, It is determined whether the idle state measurement is performed in the second camped cell.

In an implementation manner, when the UE reselects from the first camping cell to the second camping cell, if at least one of the following is met, the UE may perform idle state measurement in the second camping cell to obtain Measurement results.

Condition 1: The absolute value of the difference between the frequency of the second camping cell and the frequency of the first camping cell is less than a preset value.

Optionally, the frequency of the second camping cell may be the same as the frequency of the first camping cell. For example, when the frequency of the first camping cell is 2 GHz and the frequency of the second camping cell is 2 GHz, the UE can continue to perform measurements in the second camping cell.

Optionally, the preset value may be configured in advance by the system.

Optionally, the preset value may be notified by the base station to the UE. The base station may notify the UE of the preset value by using a dedicated signaling or a system message, which is not specifically limited in this embodiment of the present application.

Condition 2: The frequency of the second camping cell is in the list of measured frequencies.

That is to say, if the frequencies in the measurement frequency list are combined into one frequency set, when the UE reselects in this frequency set, the UE can perform measurement in the reselected resident cell.

Exemplarily, if the frequency of the measurement frequency includes frequency 1, frequency 2, frequency 3, and frequency 4, and the frequency of the second camping cell is frequency 3, then the UE may continue to perform measurement in the second camping cell.

Condition 3: The second camping cell is in the cell list.

That is to say, if the cells in the cell list corresponding to the multiple carriers are grouped into one cell set, when the UE reselects in the cell set, the UE can perform measurement in the reselected camped cell.

It should be understood that when the second camping cell is in the cell list, the frequency of the second camping cell is also in the list of measured frequencies.

Condition 4: The measurement duration of the first camping cell is less than the length of time of the timer. That is, when the UE reselects to the second camped cell, the timer is in an active state.

For example, the set timer has a time length of 10 s, and the UE measures 6 s in the first camping cell. At this time, if the UE reselects from the first camping cell to the second camping cell, the UE may be in the second camp. The remaining cell continues to measure.

Optionally, the UE reselecting from the first camping cell to the second camping cell may refer to the UE directly reselecting from the first camping cell to the second camping cell.

In other words, in the process of reselecting from the first camping cell to the second camping cell, the UE does not involve other camping cells in the middle.

Optionally, the UE reselects from the first camping cell to the second camping cell, which may refer to the UE reselecting from the first camping cell to the other camping cell, and then reselecting from the other camping cell to the second camping. Community.

The other camped cells may refer to one camped cell or multiple camped cells.

For example, the UE may reselect from the first camped cell to the camped cell 3 and then from the camped cell 3 to the second camped cell.

For another example, the UE may also reselect from the first camped cell to the camped cell 3, then from the camped cell 3 to the camped cell 4, and then from the camped cell 4 to the second camped cell.

After the UE determines that the measurement can be made in the second camped cell, the UE begins to measure at the second camped cell.

Optionally, the measurement duration of the UE in the second camped cell may be the length of time of the timer.

That is, after the UE reselects to the second camped cell, the timer can be restarted.

For example, the time length of the timer is 10s, and after the UE measures 6s in the first camping cell, the UE reselects to the second camping cell, and the UE stops measuring after the second cell measures 10s.

Optionally, the measurement duration of the UE in the second camped cell may be a difference between a time length of the timer and a measurement duration of the first camped cell.

That is, after the UE reselects to the second camped cell, the timer can continue to run.

For example, the time length of the timer is 10s, and after the UE measures 6s in the first camping cell, the UE reselects to the second camping cell, and the UE stops measuring after the second cell measures 4s.

It should be understood that the specific examples in the embodiments of the present application are only intended to help those skilled in the art to better understand the embodiments of the present application.

Optionally, if the base station does not notify the UE of the measurement configuration of the second camped cell, the measurement configuration of the UE in the second camped cell may be the same as the measurement configuration of the first camped cell.

Optionally, if the base station notifies the measurement configuration of the UE in the second camping cell, the UE may perform measurement in the second camping cell according to the measurement configuration notified by the base station.

Optionally, the measurement configuration of the UE that is notified by the base station in the second camping cell may be the same as the configuration of the first camping cell, or may be different.

It should be understood that the manner in which the base station informs the base station of the measurement configuration of the second camping cell in the embodiment of the present application is not specifically limited. For example, the base station may notify the UE of the measurement configuration of the second resident cell by using a broadcast message.

Optionally, the measurement result obtained by the UE in the second camping cell may include a measurement result of the second camping cell, a neighboring cell measurement result corresponding to the frequency of the second camping cell, and a neighboring cell measurement result corresponding to the other frequency.

After the UE completes the measurement of the second camped cell, the measurement result of the second camped cell may be saved.

It should be noted that, in the embodiment of the present application, the measurement result of the second camping cell may also be expressed as the multi-carrier measurement result or other name corresponding to the second camping cell, which is not specifically limited in this embodiment of the present application.

Optionally, after the UE enters the connected state, the measurement result of the second camped cell may be sent to the base station. After receiving the measurement result of the second camped cell sent by the UE, the base station may configure the SCell for the UE according to the measurement result. .

It should be noted that the base station that sends the measurement configuration message and the base station that receives the measurement result may be the same or different, and the application is not limited.

Optionally, if the UE finally reselects any one of the camped cells that has previously camped on, the UE may perform the measurement of the idle state according to the measurement configuration of the indication of the original RRC connection release information.

That is, the measurement of the idle state is performed according to at least one of the measurement frequency list included in the original RRC connection release information, the cell list, and the time length of the timer.

For example, if the UE reselects from camped cell 1 to camped cell 2, reselects from camped cell 2 to camped cell 3, and then reselects from camped cell 3 to camped cell 1 or camped cell 2, then The UE may perform idle state measurement according to the measurement configuration indicated by the RRC connection release information received by the camping cell.

In the foregoing technical solution, after the UE performs cell reselection, the re-selected camping cell performs idle state measurement on the multi-carrier, so that the UE can quickly feed back the measurement report to the base station after entering the connected state, thereby reducing the base station to the UE. Configure the delay of the SCell.

It should be understood that the various embodiments of the embodiments of the present application may be implemented separately or in combination, and the embodiments of the present application are not limited thereto.

For example, in the embodiment of the present application, the embodiment in which the UE determines whether to perform measurement in the new camping cell after the cell is reselected, and the implementation manner in which the UE updates the measurement result in the idle state may be separately implemented, or may be implemented in combination. The embodiment in which the UE updates the measurement result in the idle state is separately described below. It should be understood that the following embodiments may refer to related descriptions in the foregoing embodiments, and the following description is omitted for brevity.

FIG. 3 shows a schematic interaction diagram of a cell measurement method of another embodiment of the present application.

In 310, the base station sends first indication information to the UE, where the first indication information may include at least one of a measurement frequency list for idle state measurement, a cell list, a time length of the timer, and a measurement quantity to be measured.

Optionally, the first indication information may be RRC connection release information.

Optionally, the first indication information may be a system message.

In 320, the UE performs measurement on the current camped cell based on at least one of a measurement frequency list, a cell list, a time length of the timer, and a measurement amount to obtain a measurement result.

Optionally, the current camping cell may be a camping cell after the cell is reselected by the UE, or may be a camping cell that the UE has just entered the idle state, which is not limited in this application.

In 330, the UE obtains the updated measurement result by using a preset model based on the measurement result.

Optionally, the preset model may be configured in advance by the system.

Optionally, the preset model may be sent by the base station to the UE. For example, the preset indicator may be carried in the first indication information received by the UE.

Optionally, the preset model may be a layer 3 (L3) filtering model.

Alternatively, the L3 filtering model can be expressed as follows (1):

F _n =(1-a)·F _n-1 +a·M _n (1)

Where, F _n is the updated measurement result, F _n-1 is updated measurement results over a time period, M _n is a measurement ^{result, a = 1/2 (k} / 4), k is the filter coefficient.

It should be understood that F ₀ is M ₁ , which represents the measurement result of the first time period when the UE is in the second camping cell.

Optionally, the base station may send second indication information to the UE, where the second indication information is used to indicate a filtering parameter of the L3 filtering model.

The filtering parameter may be a or k in the expression (1), and the comparison is not limited in the present application.

Optionally, the second indication information may be first indication information.

Optionally, the second indication information may be other information.

Optionally, the filtering parameter of the L3 filtering model of the UE in the second camping cell may be the same as or different from the filtering parameter of the L3 filtering model of the UE in the first camping cell.

As an example, when the base station does not send the second indication information that does not indicate the filtering parameter to the UE, the filtering parameter may be a filtering parameter of the L3 filtering model of the UE when the first camping cell.

As an example, when the base station sends the second indication information indicating the filtering parameter to the UE, the filtering parameter of the L3 filtering model of the UE in the second camping cell may be the filtering parameter of the L3 filtering model of the UE in the first camping cell. The same, can also be different.

It should be understood that, in the embodiment of the present application, the preset model may also be a filtering model other than the L3 filtering model, which is not specifically limited in this embodiment of the present application.

It should be understood that in the embodiments of the present application, the "first" and "second" are only used to distinguish different objects, but do not limit the scope of the embodiments of the present application.

If the UE performs cell reselection, the UE may restart the L3 filtering in the new camping cell, that is, restart the update from F ₀ ; optionally, the UE may also continue the measurement result of the previous camped cell. Continue with L3 filtering.

In the foregoing technical solution, the measurement result obtained by the UE in the current camping cell is updated by using a preset model, for example, an L3 filtering model, so that the measurement result is more accurate and more stable, and the network device selects the auxiliary according to the updated measurement result. The cell will also be more suitable for terminal equipment.

Optionally, after the UE filters the measurement result, the UE may save the updated measurement result.

Optionally, after the UE enters the connected state, the filtered measurement result may be sent to the base station.

FIG. 4 shows a schematic interaction diagram of a cell measurement method of another embodiment of the present application.

In 410, the base station sends third indication information to the UE, where the third indication information includes a measurement frequency list, a cell list, a time length of the timer, and/or a measurement quantity.

Optionally, the third indication information may be an RRC connection release information.

Optionally, the third indication information may be a system message.

At 420, the UE saves historical measurements.

The measurement result may be obtained according to the measurement frequency list, the cell list, the time length of the timer, and/or the measurement quantity.

It should be understood that the name of the historical measurement result is not limited in the embodiment of the present application, that is, it may also be expressed as another name. For example, historical measurements can also be expressed as measurement logs or multi-carrier measurements.

For each camped cell, the UE may record the measurement result of the camped cell, the measurement result corresponding to the current frequency, and the neighboring cell measurement result corresponding to the frequency in the measurement frequency list.

Alternatively, each measurement can be filtered. For example, L3 filtering is performed.

Alternatively, when the UE leaves the current camping cell, the UE may save the measurement result of the currently camped cell.

For example, when the UE reselects from the camped cell 1 to the camped cell 2, the UE may save the multicarrier measurement result corresponding to the camped cell 1; when the UE reselects from the camped cell 2 to the camped cell 3, the UE The measurement results of the resident cell 2 can be saved.

As an example, when the UE leaves the current camping cell, the UE may automatically save the measurement result of the currently camped cell.

As an example, when the UE leaves the current camping cell, the UE may save the measurement result of the currently camped cell based on the indication information indicating that the UE saves the measurement result.

Optionally, the indication information may be the third indication information, and may also be other indication information, which is not specifically limited in this embodiment of the present application.

In a possible embodiment, the UE may save the measurement result based on the save policy.

Illustratively, the saving policy may include, but is not limited to, the following three cases:

Case 1: When the number of historical measurement results saved by the UE reaches the maximum value, the measurement result of the currently camped cell is not saved.

For example, the UE saves at most 50 measurement results. When the UE reselects from the camped cell 1 to the camped cell 2, the number of historical measurement results that the UE has saved has reached 50, and the UE does not save in the resident at this time. The measurement result of the cell 1.

Case 2: When the number of historical measurement results saved by the UE reaches a maximum value, the saved measurement result in the earliest resident cell is deleted.

For example, the UE saves up to 50 measurement results. When the UE reselects from the camped cell 1 to the camped cell 2, the number of historical measurement results that the UE has saved has reached 50, and the earliest measurement result saved by the UE corresponds to The camping cell is the camping cell 5, and the UE can delete the measurement result of the camping cell 5 and save the measurement result of the camping cell 1.

Case 3: If the measurement result of the current camping cell exists in the historical measurement result saved by the UE, the saved measurement result in the current camping cell is updated to the current measurement result.

For example, as shown in Figure 5, different graphs represent different frequencies. It can be seen that the UE saves the measurement results of the eight cells, wherein the frequency of the cell 1, the cell 2, and the cell 3 is the frequency 1, the frequency of the cell 4 and the cell 5 is the frequency 2, and the cell 6, the cell 7, and the cell 8 The frequency is frequency 3. It is assumed that the measurement result saved by the UE reaches the maximum value at this time. If the UE reselects the camped cell 9 at the frequency 4, a new entry cannot be created for the camped cell at this time, that is, the measurement result corresponding to the camp cannot be saved.

Optionally, when the number of historical measurement results saved by the UE reaches a maximum value, the UE may also delete the measurement result in any one of the camped cells.

For example, the UE saves up to 50 measurement results. When the UE reselects from the camped cell 1 to the camped cell 2, the number of historical measurement results that the UE has saved has reached 50, and the first measurement result saved by the UE corresponds to The camped cell is the camped cell 6, the camping cell corresponding to the second measurement result is the camping cell 7, and the camping cell corresponding to the third measurement result is the camping cell 8... then the UE can delete the camped cell The measurement result of the cell, the measurement result at the camping cell 7, or the measurement result at the camping cell 8....

Optionally, the UE may further send fourth indication information to the base station, where the fourth indication information is used to indicate that the UE saves the historical measurement result.

Optionally, the fourth indication information may be RRC connection completion information.

Alternatively, the UE may send historical measurements to the base station.

As an example, the UE may send a historical measurement result to the base station while transmitting the fourth indication information to the base station.

As an example, the UE may send the historical measurement result to the base station after saving the measurement result corresponding to the resident cell.

As an example, the base station may send the request information requesting the historical measurement result to the UE, and after receiving the request information, the UE may send the request response information to the base station, where the request response information carries the historical measurement result.

Optionally, after the UE enters the connected state, the historical measurement result may also be deleted.

In the foregoing technical solution, the UE saves the historical measurement result, and returns the historical measurement result to the base station after entering the connected state, and the base station can obtain the signal strength of each resident cell through the historical measurement result, thereby facilitating network optimization.

It should be understood that, in the various embodiments of the present application, the size of the sequence numbers of the foregoing processes does not mean the order of execution sequence, and the order of execution of each process should be determined by its function and internal logic, and should not be applied to the embodiment of the present application. The implementation process constitutes any limitation.

It should also be understood that the terms "system" and "network" in the embodiments of the present application are often used interchangeably herein.

The method provided by the embodiment of the present application is described in detail. In order to implement the functions in the foregoing method provided by the embodiment of the present application, the terminal device and the network device may further include a hardware structure and/or a software module, and the hardware structure and the software module. Or the hardware structure plus the software module to achieve the above functions. One of the above functions is performed in a hardware structure, a software module, or a hardware structure plus a software module, depending on the specific application and design constraints of the technical solution.

Based on the same inventive concept as the foregoing method embodiment, the embodiment of the present application provides a terminal device, which is used to implement the function of the terminal device in the foregoing method. FIG. 6 is a schematic block diagram of a terminal device according to an embodiment of the present application. It should be understood that the terminal device 600 shown in FIG. 6 is only an example, and the terminal device 600 of the embodiment of the present application may further include other modules or units, or include modules similar to those of the modules in FIG. 6, or may not include Figure 6 shows all the modules.

The communication unit 610 is configured to receive RRC connection release information, where the RRC connection release information includes at least one of a measurement frequency list for idle state measurement, a cell list, and a time length of the timer.

The processing unit 620 is configured to: when reselecting from the first camping cell to the second camping cell, based on at least one of a frequency of the second camping cell, a measurement frequency list, a cell list, and a time length of the timer, It is determined whether the idle state measurement is performed in the second camped cell.

Optionally, the processing unit 620 is specifically configured to determine, when at least one of the following, that the measurement is performed in the second camping cell, to obtain a measurement result: a frequency of the second camping cell and a first camping cell The frequencies are the same; the frequency of the second camping cell is in the measurement frequency list; the second camping cell is in the cell list.

Optionally, the processing unit 620 is further configured to restart the timer when reselecting to the second camping cell.

Optionally, the idle state measurement configuration of the second camping cell is the same as the idle state measurement configuration of the first camping cell, and the idle state measurement configuration includes a frequency list, a cell list, a time length of the timer, and a measured quantity. At least one.

Optionally, the processing unit 620 is further configured to obtain the updated measurement result by using a layer three filtering model based on the measurement result.

Optionally, the filtering parameters in the layer three filtering model are indicated by the received first indication information.

Optionally, the processing unit 620 is further configured to save historical measurement results.

Optionally, when the number of the saved measurement results reaches a maximum value, the processing unit 620 may be specifically configured to not save the multi-carrier measurement result corresponding to the current camping cell; or delete the multi-carrier measurement corresponding to the saved earliest resident cell. If the multi-carrier measurement result corresponding to the current camping cell exists in the stored historical measurement result, the multi-carrier measurement result is updated to the current measurement result.

Optionally, the communication unit 610 is further configured to send the second indication information, where the second indication information is used to indicate that the historical measurement result is saved.

Optionally, the communication unit 610 can also be configured to send historical measurement results.

Optionally, the processing unit 620 is further configured to: when reselecting to the first camping cell, based on the idle state measurement configuration, the terminal device performs measurement in the first camping cell.

As shown in FIG. 7 , the terminal device 700 is provided to implement the functions of the terminal device in the foregoing method. The terminal device 700 can be a chip system. In the embodiment of the present application, the chip system may be composed of a chip, and may also include a chip and other discrete devices. The terminal device 700 includes a processor 720 (for example, a processing unit) for implementing the functions of the terminal device in the method provided by the embodiment of the present application. For example, the processor 720 may be configured to determine whether to perform idle state measurement or the like in the second camping cell when reselecting from the first camping cell to the second camping cell, as described in detail in the method example. I will not repeat them here.

The terminal device 700 can also include a memory 730 for storing program instructions and/or data. Memory 730 is coupled to processor 720. Processor 720 may operate in conjunction with memory 730. Processor 720 may execute program instructions stored in memory 730.

The terminal device 700 may further include a transceiver 710 (which may be replaced with a receiver and a transmitter, a function implemented by the receiver) (for example, a communication unit) for communicating with the other device through the transmission medium, thereby using the terminal device The 700 can communicate with other devices. The processor 720 uses the transceiver 710 to send and receive signaling, and is used to implement the method performed by the terminal device in the method embodiment of the present application.

The specific connection medium between the above transceiver 710, the processor 720, and the memory 730 is not limited in the embodiment of the present application. In the embodiment of the present application, the memory 730, the processor 720, and the transceiver 710 are connected by a bus 740 in FIG. 7. The bus is indicated by a thick line in FIG. 7, and the connection manner between other components is only schematically illustrated. , not limited to. The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 7, but it does not mean that there is only one bus or one type of bus.

Based on the same inventive concept as the foregoing method embodiment, the embodiment of the present application provides a network device. FIG. 8 is a schematic block diagram of a network device according to an embodiment of the present application. It should be understood that the network device 800 shown in FIG. 8 is only an example, and the network device 800 of the embodiment of the present application may further include other modules or units, or include modules similar to those of the modules in FIG. 8, or may not include All the modules in Figure 8.

The communication unit 810 is configured to send RRC connection release information, where the RRC connection release information includes at least one of a measurement frequency list for idle state measurement, a cell list, and a time length of the timer; When a camping cell reselects to the second camping cell, at least one of the measurement frequency list, the cell list, and the time length of the timer is used by the terminal device to determine whether to perform idle state measurement in the second camping cell.

Optionally, the idle state measurement configuration of the second camping cell is the same as the idle state measurement configuration of the first camping cell, and the idle state measurement configuration includes the frequency list, the cell list, the time length of the timer, and the measurement. At least one of the quantities.

Optionally, the communication unit 810 is further configured to send first indication information, where the first indication information is used to indicate a filtering parameter in a layer three filtering model, and the layer three filtering model is used to update the terminal device obtained in the second camping cell. Measurement results.

Optionally, the communication unit 810 is further configured to receive the first indication information, where the first indication information is used to indicate that the terminal device saves the historical measurement result.

Optionally, the communication unit 810 can also be configured to receive historical measurement results.

FIG. 9 is a network device 900 according to an embodiment of the present application. The network device 900 includes a processor 920, which is used to implement the functions of the network device in the method provided by the embodiment of the present application. For details, refer to the detailed description in the method example, and details are not described herein.

Network device 900 can also include a memory 930 for storing program instructions and/or data. Memory 930 is coupled to processor 920. Processor 920 may operate in conjunction with memory 930. Processor 920 may execute program instructions stored in memory 930.

Network device 900 may also include a transceiver 910 for communicating with other devices over a transmission medium such that devices in network device 900 can communicate with other devices. The processor 920 uses the transceiver 910 to send and receive signaling, and is used to implement the method performed by the network device in the method embodiment of the present application.

The specific connection medium between the above transceiver 910, the processor 920, and the memory 930 is not limited in the embodiment of the present application. In the embodiment of the present application, the memory 930, the processor 920, and the transceiver 910 are connected by a bus 940 in FIG. 9. The bus is indicated by a thick line in FIG. 9, and the connection manner between other components is only schematically illustrated. , not limited to. The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 9, but it does not mean that there is only one bus or one type of bus.

The embodiment of the present application further provides a communication system, including at least one network device and at least one terminal device mentioned in the foregoing embodiments of the present application.

In this embodiment, the processor may be a central processing unit (CPU), and the processor may also be other general-purpose processors, digital signal processors (DSPs), and application specific integrated circuits (applications). Specific integrated circuit (ASIC), field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, etc. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like.

In the embodiments of the present application, the memory may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory may be a read-only memory (ROM), a programmable read only memory (ROMM), an erasable programmable read only memory (erasable PROM, EPROM), or an electrical Erase programmable EPROM (EEPROM) or flash memory. The volatile memory can be a random access memory (RAM) that acts as an external cache. By way of example and not limitation, many forms of random access memory (RAM) are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic randomness. Synchronous DRAM (SDRAM), double data rate synchronous DRAM (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous connection dynamic random access memory Take memory (synchlink DRAM, SLDRAM) and direct memory bus random access memory (DR RAM).

A person skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the system, the device and the unit described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

The method provided by the embodiment of the present application may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, it may 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 a computer, the processes or functions described in accordance with embodiments of the present application are generated in whole or in part. The computer can be a general purpose computer, a special purpose computer, a computer network, a network device, a user device, or other programmable device. The computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transmission to another website site, computer, server or data center via wired (eg coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (eg infrared, wireless, microwave, etc.). The computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media. The usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a digital video disc (DVD)), or a semiconductor medium (eg, an SSD) or the like.

The foregoing is only a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present application. It should be covered by the scope of protection of this application. Therefore, the scope of protection of the present application should be determined by the scope of the claims.

The functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product. Based on such understanding, the technical solution of the present application, which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including The instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present application. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .

Claims

A method for cell measurement, comprising:

Receiving, by the terminal device, the radio resource control RRC connection release information sent by the network device, where the RRC connection release information includes at least one of a measurement frequency list for the idle state measurement, a cell list, and a time length of the timer;

When the terminal device reselects from the first camping cell to the second camping cell, the terminal device is based on the frequency of the second camping cell, the measurement frequency list, the cell list, and the time length of the timer And determining at least one of the idle state measurements in the second camping cell.
The method according to claim 1, wherein the terminal device determines whether the terminal device is based on at least one of a frequency of the second camping cell, a measurement frequency list, a cell list, and a time length of a timer. The second camping cell performs idle state measurement, including:

If at least one of the following is satisfied, the terminal device determines to perform measurement in the second camped cell to obtain a measurement result:

The frequency of the second camping cell is the same as the frequency of the first camping cell;

The frequency of the second camping cell is in the measurement frequency list;

The second camping cell is in the cell list.
The method of claim 2, wherein the method further comprises:

The terminal device obtains the updated measurement result by using a layer three filtering model based on the measurement result.
The method according to claim 3, wherein the filtering parameter in the layer three filtering model is indicated by the first indication information received by the terminal device.
The method according to any one of claims 1 to 4, wherein the terminal device restarts the timer when reselecting to the second camping cell.
The method according to any one of claims 1 to 5, wherein the terminal device measures an idle state measurement configuration of the second camped cell and an idle state measurement configuration of the first camped cell. Similarly, the idle state measurement configuration includes at least one of the frequency list, the cell list, the time length of the timer, and the measurement amount.
The method according to any one of claims 1 to 6, wherein the method further comprises:

The terminal device saves historical measurement results.
The method according to claim 7, wherein when the number of historical measurement results saved by the terminal device reaches a maximum value, the terminal device saves the historical measurement result, including:

The terminal device does not save the multi-carrier measurement result corresponding to the currently camped cell; or

The terminal device deletes the multi-carrier measurement result corresponding to the saved earliest resident cell; or

If the multi-carrier measurement result corresponding to the current camping cell exists in the historical measurement result saved by the terminal device, the multi-carrier measurement result is updated to the current measurement result.
The method according to claim 7 or 8, wherein the method further comprises:

The terminal device sends the second indication information to the network device, where the second indication information is used to indicate that the terminal device saves the historical measurement result.
The method according to any one of claims 7 to 9, wherein the method further comprises:

The terminal device sends the historical measurement result to the network device.
The method according to any one of claims 1 to 10, further comprising:

When reselecting to the first camping cell, the terminal device performs measurement in the first camping cell based on at least one of the measured frequency list, the cell list, and the time length of the timer.
A terminal device, comprising: a processor and a memory, wherein:

The memory is configured to store program instructions;

The processor is configured to invoke and execute program instructions stored in the memory to implement the method of any one of claims 1 to 11.
A computer readable storage medium comprising instructions which, when executed on a computer, cause the computer to perform the method of any one of claims 1 to 11.