WO2023097483A1

WO2023097483A1 - Method and apparatus for acquiring measurement information

Info

Publication number: WO2023097483A1
Application number: PCT/CN2021/134520
Authority: WO
Inventors: 魏璟鑫; 薛剑韬; 肖心龙
Original assignee: 华为技术有限公司
Priority date: 2021-11-30
Filing date: 2021-11-30
Publication date: 2023-06-08
Also published as: CN117501751A

Abstract

Provided in the present application are a method and apparatus for acquiring measurement information, which can reduce power consumption of a terminal device. The method comprises: a terminal device determining, according to a connection state of wireless fidelity and a cell reselection situation within a first time period, whether to perform a search measurement on a second cell using a second search measurement period, wherein the second search measurement period is greater than a first search measurement period, the first search measurement period is a search measurement period initially used by the terminal device, and the terminal device is a terminal device which resides in a first cell; and when it is determined that the search measurement is performed on the second cell using the second search measurement period, the terminal device performing the search measurement on the second cell within a search measurement time of the second search measurement period, so as to acquire measurement information of the second cell, wherein the measurement information is used for determining whether to perform reselection from the first cell to the second cell.

Description

Method and device for obtaining measurement information

technical field

The present application relates to the communication field, and more specifically, to a method and device for acquiring measurement information in the communication field.

Background technique

In the new radio (NR) system, the state of the terminal equipment includes three types, radio resource control idle state (radio resource control_idle, RRC_IDLE) state, RRC inactive (RRC_INACTIVE) state and RRC connected (RRC_CONNECTED) state . When the network device has downlink data that needs to be sent to the terminal device in the RRC_IDLE or RRC_INACTIVE state, the network device needs to paging the terminal device through the paging process first to notify the terminal device to establish or restore the RRC connection before proceeding. data transmission. The main tasks of the terminal equipment in the RRC_IDLE state are unpaging and cell reselection.

In order to ensure the de-paging performance, the terminal device generally wakes up in advance before the discontinuous reception (DRX) is officially woken up, and performs beam measurement (beam measurement), time-frequency synchronization convergence, etc. In order to perform cell reselection, the radio resource management (radio resource management, RRM) search and measurement of the terminal equipment includes measuring the current serving cell, and searching for the same-frequency frequency point territory, different frequency point territory, and different system frequency point territory measurement so that the terminal device reselects to a more suitable cell.

During the wake-up period, the longer the radio frequency (RF) of the terminal device is turned on, the greater the power consumption of the communication processor of the terminal device, and the power consumed by the radio frequency on occupies the main part of the power consumption of the communication processor of the terminal device .

Contents of the invention

The present application provides a method and device for acquiring measurement information, which can reduce power consumption of terminal equipment.

In a first aspect, a method for acquiring measurement information is provided, and the method may be executed by a terminal device or a chip or a chip system on the terminal side. The method includes: the terminal device determines whether to use a second search and measurement period to perform search and measurement on the second cell according to the wireless fidelity connection status and cell reselection within the first time period, the second search and measurement period is greater than the first A search and measurement cycle, the first search and measurement cycle is the search and measurement cycle initially used by the terminal device, where the terminal device is a terminal device residing in the first cell; when it is determined to use the second search and measurement cycle When periodically performing search and measurement on the second cell, the terminal device performs search and measurement on the second cell within the search and measurement time of the second search and measurement period, so as to obtain measurement information of the second cell, The measurement information is used to determine whether to reselect from the first cell to the second cell.

Based on the above technical solution, the terminal device determines whether to use the second search and measurement cycle or the first search and measurement cycle to perform search and measurement on the second cell according to the Wi-Fi connection status and cell reselection within the first time period. The measurement period is greater than the first search measurement period. If it is determined to use the second search and measurement period to perform search and measurement on the second cell, the RF turn-on time of the terminal device can be reduced, thereby reducing power consumption of the terminal device.

With reference to the first aspect, in some implementation manners of the first aspect, if the wireless fidelity connection state of the terminal device meets the first condition within the first time period, and the terminal device is in the first If no cell reselection occurs within the time period, the terminal device determines to use the second search and measurement period to perform search and measurement on the second cell.

With reference to the first aspect, in some implementation manners of the first aspect, the wireless fidelity connection status of the terminal device within the first time period satisfies a first condition, including: the terminal device is in the first The wireless fidelity device connected during the time period does not change; and/or, the address of the wireless fidelity device connected to the terminal device during the first time period does not change; and/or, the terminal device is in the The frequency of establishing a connection with the wireless fidelity device during the first time period remains unchanged; and/or, the channel through which the terminal device establishes a connection with the wireless fidelity device within the first time period remains unchanged.

With reference to the first aspect, in some implementation manners of the first aspect, the terminal device determines whether to use the second search and measurement cycle for the second The cell search measurement includes: the terminal device determines according to the wireless fidelity connection status and cell reselection situation, the signal quality of the first cell and the moving speed of the terminal device within the first time period Whether to use the second search and measurement cycle to perform search and measurement on the second cell.

With reference to the first aspect, in some implementation manners of the first aspect, if the wireless fidelity connection state of the terminal device meets the first condition within the first time period, and the terminal device is in the first time period Cell reselection does not occur within a period of time, the signal quality of the first cell meets the second condition within the first period of time, and the moving speed of the terminal device within the first period of time is less than or equal to the second condition a threshold, the terminal device determines to use the second search and measurement cycle to perform search and measurement on the second cell. It should be understood that if the Wi-Fi connection status of the terminal device meets the first condition within the first time period, it means that the terminal device is in a relatively small range of activities; the terminal device does not undergo cell reselection within the first time period , indicating that the signal quality of the first cell where the terminal device is currently camped on is relatively stable. If the Wi-Fi connection status of the terminal device meets the first condition within the first time period and no cell reselection occurs within the first time period, the signal quality of the first cell and the moving speed of the terminal device are combined , determining to use the second search and measurement cycle to perform search and measurement on the second cell can reduce the RF turn-on time of the terminal device while not affecting the de-paging and cell reselection of the terminal device, thereby reducing the power consumption of the terminal device.

With reference to the first aspect, in some implementation manners of the first aspect, the signal quality of the first cell satisfies a second condition, including: the reference signal received power RSRP of the first cell is greater than or equal to a second threshold, and /or, the SINR of the first cell is greater than or equal to a third threshold.

With reference to the first aspect, in some implementation manners of the first aspect, the second cell includes at least one of a same-frequency neighboring cell, a different-frequency neighboring cell, and a different-system neighboring cell.

With reference to the first aspect, in some implementation manners of the first aspect, the signal quality of the first cell satisfies the second condition, including: the reference signal received power RSRP of the first cell is greater than or equal to a second threshold, so The SINR of the first cell is greater than or equal to a third threshold, and the difference between the RSRP of the first cell minus the RSRP of the second cell is greater than or equal to a fourth threshold, wherein the second cell is the same Neighboring neighborhoods.

In a second aspect, there is provided a communication device, which can be applied to the terminal device described in the first aspect, and the device includes: a determining unit, configured to, according to the wireless fidelity connection status and In case of cell reselection, determine whether to use the second search and measurement period to perform search measurement on the second cell, the second search and measurement period is greater than the first search and measurement period, and the first search and measurement period is the initially used search and measurement period, Wherein, the terminal device is a terminal device residing in the first cell; the processing unit is configured to, when the determining unit determines to use the second search measurement cycle to perform search measurement on the second cell, in the Perform search measurement on the second cell within the search measurement time of the second search measurement period, so as to obtain measurement information of the second cell, and the measurement information is used to determine whether to reselect from the first cell to the second cell. district.

With reference to the second aspect, in some implementation manners of the second aspect, the determining unit is specifically configured to: if the wireless fidelity connection state of the terminal device meets the first condition within the first time period, and the determined If no cell reselection occurs within the first time period, the terminal device determines to use the second search and measurement cycle to perform search and measurement on the second cell.

With reference to the second aspect, in some implementation manners of the second aspect, the wireless fidelity connection status of the terminal device within the first time period satisfies a first condition, including: the terminal device is in the first The wireless fidelity device connected during the time period does not change; and/or, the address of the wireless fidelity device connected to the terminal device during the first time period does not change; and/or, the terminal device is in the The frequency of establishing a connection with the wireless fidelity device during the first time period remains unchanged; and/or, the channel through which the terminal device establishes a connection with the wireless fidelity device within the first time period remains unchanged.

With reference to the second aspect, in some implementation manners of the second aspect, the determining unit is specifically configured to: according to the wireless fidelity connection status and cell reselection situation within the first time period, the first cell Determine whether to use the second search and measurement period to perform search and measurement on the second cell.

With reference to the second aspect, in some implementation manners of the second aspect, the determining unit is specifically configured to: if the wireless fidelity connection state of the terminal device meets the first condition within the first time period, The terminal device does not undergo cell reselection within the first time period, the signal quality of the first cell meets the second condition within the first time period, and the terminal device If the moving speed within is less than or equal to the first threshold, it is determined to use the second search and measurement cycle to perform search and measurement on the second cell.

With reference to the second aspect, in some implementation manners of the second aspect, the signal quality of the first cell satisfies a second condition, including: the reference signal received power RSRP of the first cell is greater than or equal to a second threshold, and /or, the SINR of the first cell is greater than or equal to a third threshold.

With reference to the second aspect, in some implementation manners of the second aspect, the second cell includes at least one of a same-frequency neighboring cell, a different-frequency neighboring cell, and a different-system neighboring cell.

With reference to the second aspect, in some implementation manners of the second aspect, the signal quality of the first cell satisfies the second condition, including: the reference signal received power RSRP of the first cell is greater than or equal to a second threshold, so The SINR of the first cell is greater than or equal to a third threshold, and the difference between the RSRP of the first cell minus the RSRP of the second cell is greater than or equal to a fourth threshold, wherein the second cell is the same Neighboring neighborhoods.

In a third aspect, there is provided a communication device, including: a processor and a memory, the memory is used to store a computer program, and the processor is used to execute the computer program stored in the memory, so that the communication device performs as described in the first aspect. A method in one aspect or any possible implementation of the first aspect.

In a fourth aspect, a communication device is provided, including: an input-output interface and a logic circuit, the input-output interface is used to obtain input information and/or output information; the logic circuit is used to perform any or any of the above-mentioned aspects In the method described in any possible implementation manner, the input information is processed and/or the output information is generated.

In a fifth aspect, a computer-readable storage medium is provided, the computer-readable medium stores a computer program; when the computer program runs on a computer, the computer executes any one of the above-mentioned first aspect and the first aspect Methods in Possible Implementations.

In a sixth aspect, a computer program product including instructions is provided, and when the instructions are executed by a computer, the communication device implements the method in the above-mentioned first aspect and any possible implementation manner of the first aspect.

Description of drawings

FIG. 1 is a schematic diagram of a system architecture applicable to an embodiment of the present application.

Figure 2 is a schematic diagram of the composition of SSB.

Fig. 3 is a schematic flowchart of a method for acquiring measurement information provided by an embodiment of the present application.

Fig. 4 is a schematic block diagram of a communication device according to an embodiment of the present application.

Fig. 5 is a schematic block diagram of a communication device according to an embodiment of the present application.

Detailed ways

The technical solution in this application will be described below with reference to the accompanying drawings.

The embodiments of the present application can be applied to various communication systems, such as a wireless local area network system (wireless local area network, WLAN), a narrowband Internet of Things system (narrow band-internet of things, NB-IoT), a global system for mobile communications (global system for mobile communications, GSM), enhanced data rate for GSM evolution system (enhanced data rate for gsm evolution, EDGE), wideband code division multiple access system (wideband code division multiple access, WCDMA), code division multiple access 2000 system (code division multiple access, CDMA2000), time division-synchronization code division multiple access system (time division-synchronization code division multiple access, TD-SCDMA), long term evolution system (long term evolution, LTE), satellite communication, fifth generation (5th generation, 5G) systems, and three major application scenarios of 5G communication systems: enhanced mobile broadband (eMBB), ultra reliable and low latency communications (URLLC), and massive machine type communications (massive machine type communications, mMTC).

A communication system applicable to this application includes one or more sending ends and one or more receiving ends. Wherein, the signal transmission between the sending end and the receiving end may be transmitted through radio waves, or may be transmitted through transmission media such as visible light, laser, infrared, and optical fiber. Exemplarily, one of the sending end and the receiving end may be a terminal device, and the other may be a network device.

The terminal devices involved in the embodiments of the present application may include various handheld devices with wireless communication functions, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to wireless modems. The terminal can be a mobile station (mobile station, MS), a subscriber unit (subscriber unit), a user equipment (user equipment, UE), a cellular phone (cellular phone), a smart phone (smart phone), a wireless data card, a personal digital assistant ( personal digital assistant (PDA) computer, tablet computer, wireless modem (modem), handheld device (handset), laptop computer (laptop computer), machine type communication (machine type communication, MTC) terminal, etc. Wherein, the user equipment includes vehicle user equipment.

Exemplarily, the network device may be an evolved Node B (evolved Node B, eNB), a radio network controller (radio network controller, RNC), a Node B (Node B, NB), a base station controller (base station controller, BSC) ), base transceiver station (base transceiver station, BTS), home base station (home evolved NodeB, or home Node B, HNB), baseband unit (baseband unit, BBU), wireless fidelity (wireless fidelity, WIFI) system in the connection Access point (access point, AP), wireless relay node, wireless backhaul node, transmission point (transmission point, TP) or transmission and reception point (transmission and reception point, TRP), etc., can also be a new air interface (new radio, A gNB or transmission point (for example, TRP or TP) in NR), one or a group (including multiple) antenna panels of a base station in NR, or a network node constituting a gNB or a transmission point, such as a baseband unit (building baseband unit, BBU) or distributed unit (distributed unit, DU), etc., or, the network device can also be a vehicle device, a wearable device, and a network device in a 5G network, or a network device in a PLMN network that will evolve in the future etc., without limitation.

The product forms of network equipment are very rich. For example, in the process of product realization, the BBU and radio frequency unit (radio frequency unit, RFU) can be integrated in the same device, and the device is connected to the antenna array through a cable (such as but not limited to a feeder). The BBU can also be set separately from the RFU, and the two are connected through an optical fiber, and communicate through, for example but not limited to, a common public radio interface (CPRI) protocol. In this case, the RFU is usually called a remote radio unit (RRU), which is connected to the antenna array by cables. In addition, the RRU can also be integrated with the antenna array, for example, active antenna unit (active antenna unit, AAU) products currently on the market adopt this structure.

Furthermore, the BBU can be further decomposed into multiple parts. For example, the BBU can be further subdivided into a centralized unit (centralized unit, CU) and a distributed unit (distributed unit, DU) according to the real-time performance of the processed services. CU is responsible for processing non-real-time protocols and services, and DU is responsible for processing physical layer protocols and real-time services. Furthermore, some physical layer functions can be separated from the BBU or DU and integrated in the AAU.

As shown in FIG. 1 , a schematic diagram of a system architecture applicable to this embodiment of the present application is shown. The system includes network equipment and terminal equipment, and the network equipment in this embodiment of the present application may be a base station.

In the new wireless (new radio, NR) system, each synchronization signal block (synchronization signal block, SSB) occupies 4 orthogonal frequency division multiplexing (orthogonal frequency division multiplexing, OFDM) symbols (symbol), SSB is composed of synchronization signal Composed of time-domain symbols where the physical broadcast channel (physical broadcast channel, PBCH) is located, it is used for terminal equipment to initially reside, and the synchronization signal includes a primary synchronization signal (primary synchronization signal, PSS) and a secondary synchronization signal (secondary synchronization signal, SSS). As shown in Figure 2, a schematic diagram of the composition of the SSB is shown. The subcarrier spacing (SCS) of the SSB symbol can take values of 15KHz, 30KHz, 120KHz, and 240KHz, among which 15KHz and 30KHz are used for frequency bands below 6GHz, and 120KHz and 240KHz are used for frequency bands above 6GHz.

The SS burst set is composed of at most L SSBs, and the SS burst set is sent periodically; among them, L is related to the frequency band.

During the initial dwell phase, the default SS burst set period (default SS burst set period) is 20ms. For different SSBs in the SS burst set period, the base station can adopt different transmit beam directions. The same SSB in the SS burst set period corresponds to the same transmit beam direction. All sent SSBs within the SS burst set period are limited to 5ms.

In NR, the state of the terminal device includes three types, radio resource control idle state (radio resource control_idle, RRC_IDLE) state, RRC inactive (RRC_INACTIVE) state and RRC connected (RRC_CONNECTED) state. When the network device has downlink data that needs to be sent to the terminal device in the RRC_IDLE or RRC_INACTIVE state, the network device needs to paging the terminal device through the paging process first to notify the terminal device to establish or restore the RRC connection before proceeding. data transmission. The main tasks of the terminal equipment in the RRC_IDLE state are unpaging and cell reselection.

In order to ensure the de-paging performance, the terminal device generally wakes up in advance before the DRX is officially woken up, and performs beam measurement and time-frequency synchronization convergence.

In order to perform cell reselection, the radio resource management (RRM) search and measurement of the terminal equipment includes measuring the current serving cell, and searching for the same-frequency frequency point area, different-frequency point area, and different-system frequency point area. ,Measurement. The protocol will stipulate the time constraints, measurement period, evaluation time and reselection parameters for discovering new detectable cells, so that the terminal equipment can reselect to a more suitable cell. Wherein, the cell reselection of the terminal equipment in the RRC_IDLE state is decided by the terminal equipment.

During RRC_IDLE state wake-up, the longer the RF of the terminal device is turned on, the greater the power consumption of the communication processor of the terminal device, and the power consumption consumed by the radio frequency turning on occupies the main part of the power consumption of the communication processor of the terminal device. Reducing the RF turn-on time of the terminal equipment is the main means to reduce the power consumption of the communication processor of the terminal equipment.

At present, the NR R16 standard additionally specifies the relaxed measurement criteria in addition to the original normal measurement. If the relaxation measurement criterion is satisfied, the relaxation measurement is performed, for example, the search cycle, the measurement cycle, and the evaluation cycle are enlarged; otherwise, the measurement is performed according to the original cycle. The relaxed measurement criteria include low mobility (low mobility) criteria and not at cell edge (not at cell edge) criteria, and the terminal device determines which criteria are met according to parameters configured by the base station.

The base station can configure only the low mobility criterion, and if the serving cell meets the criterion, the terminal equipment residing in the serving cell can perform relaxed measurement on co-frequency neighboring cells. Exemplarily, if the signal quality of the current serving cell is greater than the threshold, the terminal equipment residing in the current serving cell may perform relaxed measurement on the neighboring cells of the same frequency.

The base station can also configure the low mobility criterion and the non-cell edge criterion at the same time. If the serving cell satisfies the two criteria at the same time, the terminal equipment residing in the serving cell can use the same frequency neighbor cell, different frequency neighbor cell and different system Neighboring cells perform relaxation measurements. If the current serving cell only satisfies one of the two criteria, the terminal equipment residing in the current serving cell may perform relaxed measurement on co-frequency neighboring cells. Since the terminal device judges whether the relaxed measurement criteria are met according to the parameters configured by the base station, when the parameters configured by the base station are inappropriate or the environment in which the terminal device is located changes, the terminal device may not meet any relaxed measurement criteria. As a result, the purpose of reducing the power consumption of the terminal equipment cannot be achieved. For example, if the terminal device is stationary at a certain location, the measurement value of the serving cell may fluctuate greatly due to the change of the channel environment, and at this time, the judgment of the low mobility criterion of the existing standard may not be satisfied.

At present, it is also proposed to determine whether to lengthen the domain search period according to the sensor speed indication, cell signal strength/reference signal quality and block error rate, which does not involve lengthening the domain measurement period. Wherein, the speed of the wireless mobile device can be measured by an accelerometer or a global positioning system (GPS). The reference signal quality can be indicated by reference signal receiving power (reference signal receiving power, RSRP)/reference signal receiving quality (reference signal receiving quality, RSRQ)/signal to interference plus noise ratio (signal to interference plus noise ratio, SINR). Wherein, the signal-to-interference-plus-noise ratio may be referred to as the signal-to-interference-noise ratio for short.

In addition, it is also proposed to determine which mode the terminal device is in according to the reference signal quality (SINR/RSRQ) of the current serving cell, whether a specific measurement event is configured, and whether decoding failure occurs on the downlink channel of the serving cell. The modes of the terminal equipment are divided into normal mode, mild emergency mode, and emergency mode. The modes of the terminal equipment are different, and the corresponding search and measurement cycles are different, among which, the scheduling of the emergency mode is the most frequent.

The embodiment of the present application proposes a method for acquiring measurement information, which can reduce power consumption of a terminal device. As shown in FIG. 3 , a schematic flowchart of a method 300 for acquiring measurement information provided by an embodiment of the present application is shown.

310. The terminal device determines whether to use the second search and measurement period to perform search and measurement on the second cell according to the wireless-fidelity (wireless-fidelity, Wi-Fi) connection status and the cell reselection situation in the first time period, the second The second search and measurement period is greater than the first search and measurement period, and the first search and measurement period is a search and measurement period initially used by the terminal device; wherein, the terminal device is a terminal device residing in the first cell. The second search measurement cycle is greater than or equal to the discontinuous reception (DRX) cycle, and the activation time in the DRX cycle includes the search measurement time in the search measurement cycle, in other words, the search measurement time falls within the activation time of the DRX cycle .

It should be understood that the terminal device may determine to search, measuring, to acquire measurement information of the second cell, where the measurement information is used to determine whether to reselect from the first cell to the second cell. The terminal device may be a terminal device in RRC_IDLE state or RRC_INACTIVE state.

Optionally, the second cell includes at least one of adjacent cells of the same frequency, neighboring cells of different frequencies, and neighboring cells of different systems. For example, the second cell may include same-frequency adjacent cells or different-frequency adjacent cells or different-system adjacent cells; for another example, the second cell may include same-frequency adjacent cells, different-frequency adjacent cells, and different-system adjacent cells; The cells may include same-frequency adjacent cells and inter-frequency adjacent cells.

Exemplarily, if the Wi-Fi connection status of the terminal device meets the first condition within the first time period, and the terminal device does not undergo cell reselection within the first time period, the terminal device determines to use the second search The measurement period performs search measurement on the second cell. If the Wi-Fi connection status of the terminal device does not meet the first condition within the first time period, and/or the terminal device undergoes cell reselection within the first time period, the terminal device determines to still use the first search The measurement period performs search measurement on the second cell.

Wherein, the Wi-Fi connection status of the terminal device meets the first condition within the first time period, it can be understood that the Wi-Fi device connected to the terminal device within the first time period remains unchanged; and/or, the terminal The address of the wireless fidelity device to which the device is connected within the first period of time remains unchanged; and/or, the frequency at which the terminal device establishes a connection with the wireless fidelity device within the first period of time remains unchanged; and/or, the terminal device The channel for establishing a connection with the Wi-Fi device during the first time period remains unchanged. If the Wi-Fi connection status of the terminal device meets the first condition within the first time period, and the Wi-Fi connection strength of the terminal device is good, it means that the terminal device is in a relatively small activity range.

If the terminal device does not undergo cell reselection within the first time period, it can be understood that the frequency point, standard and cell physical identifier (identity, ID) of the serving cell where the terminal device resides during the first time period remain unchanged.

Optionally, the terminal device may determine whether to use the second search and measurement period for the second search and measurement period according to the Wi-Fi connection status and cell reselection status, the signal quality of the first cell, and the moving speed of the terminal device within the first time period. The second cell performs search and measurement.

Exemplarily, if the Wi-Fi connection status of the terminal device meets the first condition within the first time period, the terminal device does not undergo cell reselection within the first time period, and the signal quality of the first cell within the first time period If the second condition is satisfied and the moving speed of the terminal device within the first time period is less than or equal to the first threshold, then the terminal device determines to use the second search measurement period to perform search measurement on the second cell. Otherwise, the terminal device determines to still use the first search and measurement cycle to perform search and measurement on the second cell. It should be understood that if the Wi-Fi connection status of the terminal device meets the first condition within the first time period, it means that the terminal device is in a relatively small range of activities; the terminal device does not undergo cell reselection within the first time period , indicating that the signal quality of the first cell where the terminal device is currently camped on is relatively stable. If the Wi-Fi connection status of the terminal device meets the first condition within the first time period and no cell reselection occurs within the first time period, the signal quality of the first cell and the moving speed of the terminal device are combined , determining to use the second search and measurement cycle to perform search and measurement on the second cell can reduce the RF turn-on time of the terminal device while not affecting the de-paging and cell reselection of the terminal device, thereby reducing the power consumption of the terminal device.

Wherein, the moving speed of the terminal device within the first time period is less than or equal to the first threshold, it can be understood that the terminal device is in a static or low-speed state. Specifically, the sensor of the terminal device may indicate that the terminal device is in a static or low-speed state, or the terminal device's own global navigation satellite system (global navigation satellite system, GNSS) indicates that the moving speed of the terminal device is less than or equal to the first a threshold.

The signal quality of the first cell satisfies the second condition, it can be understood that the reference signal received power RSRP of the first cell is greater than or equal to the second threshold, and/or the signal-to-interference and noise ratio SINR of the first cell is greater than or equal to the third threshold . For example, if the reference signal received power RSRP of the first cell is greater than or equal to the second threshold, or the signal-to-interference and noise ratio SINR of the first cell is greater than or equal to the third threshold, or the reference signal received power RSRP of the first cell is greater than or equal to If it is equal to the second threshold and the SINR of the first cell is greater than or equal to the third threshold, it indicates that the signal quality of the first cell is good.

The signal quality of the first cell satisfies the second condition. It can also be understood that the reference signal received power RSRP of the first cell is greater than or equal to the second threshold, the SINR of the first cell is greater than or equal to the third threshold, and the first cell’s The difference between the RSRP minus the RSRP of the second cell is greater than or equal to a fourth threshold; wherein, the second cell is an intra-frequency neighboring cell. This application does not specifically limit it.

320. When it is determined to use the second search and measurement period to perform search and measurement on the second cell, the terminal device performs search and measurement on the second cell within the search and measurement time of the second search and measurement period, so as to obtain measurement information of the second cell, The measurement information is used to determine whether to reselect from the first cell to the second cell. Optionally, the measurement information may be information such as RSRP/RSRQ/SINR of the second cell.

For example, a terminal device in an idle state continuously satisfies the following four conditions during the period [tt ₀ , t]:

(1) The Wi-Fi connection status of the terminal device meets the first condition and the Wi-Fi connection strength of the terminal device is good;

(2) The signal quality of the first cell where the terminal equipment resides satisfies the second condition;

(3) The terminal equipment does not undergo cell reselection;

(4) The moving speed of the terminal device is less than or equal to the first threshold.

Then the terminal device may use the second search and measurement period to perform search and measurement on the second cell, in other words, the terminal device may increase the search and measurement period for the second cell. Optionally, the terminal device may increase the search and measurement cycle for at least one of the same-frequency adjacent cells, different-frequency adjacent cells, and different-system adjacent cells. Otherwise, the terminal device determines not to change the search and measurement period for the second cell, that is, still uses the first search and measurement period to perform search and measurement for the second cell.

In the technical solution provided by the embodiment of the present application, the terminal device determines whether to use the second search and measurement cycle or the first search and measurement cycle to search for the second cell according to the Wi-Fi connection status and cell reselection within the first time period measurement, the second search measurement period is greater than the first search measurement period. If it is determined to use the second search and measurement period to perform search and measurement on the second cell, the RF turn-on time of the terminal device can be reduced, thereby reducing power consumption of the terminal device.

An embodiment of the present application proposes a communication device, as shown in FIG. 4 , which shows a schematic block diagram of a communication device 400 in the embodiment of the present application. The apparatus may be applied to the terminal device in the embodiment of the present application. The communication device 400 includes:

A determining unit 410, configured to determine whether to use a second search and measurement cycle to perform search and measurement on the second cell according to the wireless fidelity connection status and cell reselection of the terminal device within the first time period, the second search and measurement cycle greater than the first search measurement period, the first search measurement period is the initially used search measurement period, wherein the terminal device is a terminal device camping on the first cell;

A processing unit 420, configured to, when the determining unit determines to use the second search and measurement cycle to perform search and measurement on the second cell, perform search and measurement on the second cell within the search and measurement time of the second search and measurement cycle performing search measurements to acquire measurement information of the second cell, where the measurement information is used to determine whether to reselect from the first cell to the second cell.

Optionally, the determining unit 410 is specifically configured to: if the wireless fidelity connection status of the terminal device meets the first condition within the first time period and the terminal device does not have any When cell reselection occurs, it is determined to use the second search and measurement cycle to perform search and measurement on the second cell.

Optionally, the wireless fidelity connection status of the terminal device within the first time period satisfies a first condition, including:

The wireless fidelity device connected to the terminal device during the first time period remains unchanged; and/or,

The address of the wireless fidelity device connected to the terminal device during the first time period remains unchanged; and/or,

The frequency with which the terminal device establishes a connection with the Wi-Fi device during the first time period remains unchanged; and/or,

The channel on which the terminal device establishes a connection with the Wi-Fi device during the first time period remains unchanged.

Optionally, the determining unit 410 is specifically configured to: according to the Wi-Fi connection status and cell reselection situation within the first time period, the signal quality of the first cell, and the moving speed of the terminal device , determining whether to use the second search and measurement cycle to perform search measurement on the second cell.

Optionally, the determining unit 410 is specifically configured to: if the wireless fidelity connection state of the terminal device meets the first condition within the first time period, the terminal device within the first time period No cell reselection occurs within the first time period, the signal quality of the first cell meets the second condition within the first time period, and the moving speed of the terminal device within the first time period is less than or equal to a first threshold, Then it is determined to use the second search and measurement cycle to perform search and measurement on the second cell.

Optionally, the signal quality of the first cell meets the second condition, including: the reference signal received power RSRP of the first cell is greater than or equal to a second threshold, and/or the signal interference and noise of the first cell The ratio SINR is greater than or equal to the third threshold.

Optionally, the second cell includes at least one of adjacent cells of the same frequency, neighboring cells of different frequencies, and neighboring cells of different systems.

Optionally, the signal quality of the first cell meets the second condition, including: the reference signal received power RSRP of the first cell is greater than or equal to a second threshold, and the SINR of the first cell is greater than or equal to a third threshold , and, the difference between the RSRP of the first cell minus the RSRP of the second cell is greater than or equal to a fourth threshold, where the second cell is an intra-frequency neighboring cell.

An embodiment of the present application provides a communication device 500 , as shown in FIG. 5 , which shows a schematic block diagram of the communication device 500 according to the embodiment of the present application.

The communication device 500 includes: a processor 510, a memory 520 and a communication interface 530;

The memory 520 is used to store executable instructions;

The processor 510 is coupled to the memory 520 through the communication interface 530, and the processor 510 is configured to invoke and execute the executable instructions in the memory 520, so as to implement the method in the embodiment of the present application. The communication device may be the terminal device in the embodiment of the present application.

The processor 510 mentioned above may be an integrated circuit chip, which has a signal processing capability. In the implementation process, each step of the above-mentioned method embodiments may be completed by an integrated logic circuit of hardware in a processor or instructions in the form of software. The above-mentioned processor can be a general-purpose processor, a digital signal processor (digital signal processor, DSP), an application specific integrated circuit (application specific integrated circuit, ASIC), an off-the-shelf programmable gate array (field programmable gate array, FPGA) or other available Program logic devices, discrete gate or transistor logic devices, discrete hardware components. Various methods, steps, and logic block diagrams disclosed in the embodiments of the present application may be implemented or executed. A general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like. The steps of the method disclosed in the embodiments of the present application can be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register. The storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.

Optionally, the embodiment of the present application further provides a communication device, the communication device includes an input and output interface and a logic circuit, the input and output interface is used to obtain input information and/or output information; the logic circuit is used to perform the above-mentioned The method in any method embodiment performs processing and/or generates output information according to input information.

The embodiment of the present application also provides a computer-readable storage medium, on which a computer program for implementing the method in the above method embodiment is stored. When the computer program runs on the computer, the computer can implement the methods in the above method embodiments.

The embodiment of the present application also provides a computer program product, the computer program product includes computer program code, and when the computer program code is run on the computer, the method in the above method embodiment is executed.

The embodiment of the present application also provides a chip, including a processor, the processor is connected to a memory, the memory is used to store a computer program, and the processor is used to execute the computer program stored in the memory, so that the The chip executes the method in the above method embodiment.

It should be understood that in the embodiment of the present application, the numbers "first", "second"... are only used to distinguish different objects, such as different thresholds, and do not limit the scope of the embodiment of the present application. The embodiment of the present application It is not limited to this.

In addition, the term "and/or" in this application is only an association relationship describing associated objects, indicating that there may be three relationships, for example, A and/or B may indicate: A exists alone, and A and B exist simultaneously , there are three cases of B alone. In addition, the character "/" in this article generally means that the contextual objects are an "or" relationship; the term "at least one" in this application can mean "one" and "two or more", for example, A , B and C, can mean: A exists alone, B exists alone, C exists alone, A and B exist simultaneously, A and C exist simultaneously, C and B exist simultaneously, A, B and C exist simultaneously, these seven kinds Condition.

Those skilled in the art can appreciate that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art may implement the described functionality using different methods for each particular application, but such implementation should not be considered as exceeding the scope of the present application.

Those skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiment, and will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.

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

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

If the functions described above are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (read-only memory, ROM), random access memory (random access memory, RAM), magnetic disk or optical disc and other media that can store program codes. .

The above is only a specific implementation of the application, but the scope of protection of the application is not limited thereto. Anyone familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the application. Should be covered within the protection scope of this application. Therefore, the protection scope of the present application should be determined by the protection scope of the claims.

Claims

A method for obtaining measurement information, comprising:

The terminal device determines whether to use a second search measurement period to perform search measurement on the second cell according to the wireless fidelity connection status and cell reselection within the first time period, and the second search measurement period is greater than the first search measurement period , the first search and measurement period is a search and measurement period initially used by the terminal device, where the terminal device is a terminal device residing in a first cell;

When determining to use the second search and measurement period to perform search and measurement on the second cell, the terminal device performs search and measurement on the second cell within the search and measurement time of the second search and measurement period, to obtain Measurement information of the second cell, where the measurement information is used to determine whether to reselect from the first cell to the second cell.
The method according to claim 1, characterized in that,

If the wireless fidelity connection state of the terminal device meets the first condition within the first time period, and the terminal device does not undergo cell reselection within the first time period, the terminal device determines to adopt The second search and measurement period performs search and measurement on the second cell.
The method according to claim 2, wherein the wireless fidelity connection status of the terminal device within the first time period satisfies a first condition, including:

The wireless fidelity device connected to the terminal device during the first time period remains unchanged; and/or,

The address of the wireless fidelity device connected to the terminal device during the first time period remains unchanged; and/or,

The frequency with which the terminal device establishes a connection with the Wi-Fi device during the first time period remains unchanged; and/or,

The channel on which the terminal device establishes a connection with the Wi-Fi device during the first time period remains unchanged.
The method according to any one of claims 1 to 3, wherein the terminal device determines whether to use the second search and measurement cycle to The second cell performs search measurements, including:

The terminal device determines whether to use the second search according to the Wi-Fi connection status and cell reselection within the first time period, the signal quality of the first cell, and the moving speed of the terminal device. The measurement period performs search measurement on the second cell.
The method according to claim 4, characterized in that,

If the wireless fidelity connection status of the terminal device meets the first condition within the first time period, and the terminal device does not undergo cell reselection within the first time period, at the first time period If the signal quality of the first cell within the period satisfies the second condition and the moving speed of the terminal device within the first time period is less than or equal to a first threshold, then the terminal device determines to use the second search measurement Periodically perform search measurement on the second cell.
The method according to claim 5, wherein the signal quality of the first cell satisfies a second condition, comprising:

The reference signal received power RSRP of the first cell is greater than or equal to a second threshold, and/or the signal-to-interference and noise ratio SINR of the first cell is greater than or equal to a third threshold.
The method according to any one of claims 1 to 6, characterized in that,

The second cell includes at least one of adjacent cells of the same frequency, neighboring cells of different frequencies, and neighboring cells of different systems.
The method according to any one of claims 5 to 7, wherein the signal quality of the first cell satisfies a second condition, comprising:

The reference signal received power RSRP of the first cell is greater than or equal to a second threshold, the SINR of the first cell is greater than or equal to a third threshold, and the RSRP of the first cell minus the RSRP of the second cell The difference is greater than or equal to the fourth threshold, wherein the second cell is an intra-frequency neighboring cell.
A communication device, characterized by comprising:

A determination unit, configured to determine whether to use a second search and measurement period to perform search and measurement on the second cell according to the wireless fidelity connection status and cell reselection of the terminal device within the first time period, and the second search and measurement period is greater than A first search and measurement period, where the first search and measurement period is an initially used search and measurement period, wherein the terminal device is a terminal device residing in a first cell;

a processing unit, configured to, when the determining unit determines to use the second search and measurement cycle to perform search and measurement on the second cell, perform search and measurement on the second cell within the search and measurement time of the second search and measurement cycle Searching for measurements to acquire measurement information of the second cell, where the measurement information is used to determine whether to reselect from the first cell to the second cell.
The device according to claim 9, wherein the determining unit is specifically configured to:

If the wireless fidelity connection state of the terminal device meets the first condition within the first time period, and the terminal device does not undergo cell reselection within the first time period, determine to adopt the second The search measurement period performs search measurement on the second cell.
The apparatus according to claim 10, wherein the Wi-Fi connection status of the terminal device within the first time period satisfies a first condition, including:

The wireless fidelity device connected to the terminal device during the first time period remains unchanged; and/or,

The address of the wireless fidelity device connected to the terminal device during the first time period remains unchanged; and/or,

The frequency with which the terminal device establishes a connection with the Wi-Fi device during the first time period remains unchanged; and/or,

The channel on which the terminal device establishes a connection with the Wi-Fi device during the first time period remains unchanged.
The device according to any one of claims 9 to 11, wherein the determining unit is specifically configured to:

According to the Wi-Fi connection status and cell reselection status, the signal quality of the first cell, and the moving speed of the terminal device within the first time period, determine whether to use the second search and measurement period for all Perform search measurement on the second cell.
The device according to claim 12, wherein the determining unit is specifically configured to:

If the wireless fidelity connection status of the terminal device meets the first condition within the first time period, and the terminal device does not undergo cell reselection within the first time period, at the first time period If the signal quality of the first cell within the period satisfies the second condition and the moving speed of the terminal device within the first time period is less than or equal to the first threshold, then it is determined to use the second search and measurement period for the The second cell performs search measurements.
The device according to claim 13, wherein the signal quality of the first cell satisfies a second condition, comprising:

The reference signal received power RSRP of the first cell is greater than or equal to a second threshold, and/or the signal-to-interference and noise ratio SINR of the first cell is greater than or equal to a third threshold.
Apparatus according to any one of claims 9 to 14, characterized in that

The second cell includes at least one of adjacent cells of the same frequency, neighboring cells of different frequencies, and neighboring cells of different systems.
The device according to any one of claims 13 to 15, wherein the signal quality of the first cell satisfies a second condition, including:

The reference signal received power RSRP of the first cell is greater than or equal to a second threshold, the SINR of the first cell is greater than or equal to a third threshold, and the RSRP of the first cell minus the RSRP of the second cell The difference is greater than or equal to the fourth threshold, wherein the second cell is an intra-frequency neighboring cell.
A communication device, characterized by comprising: a processor and a memory, the memory is used to store a computer program, the processor is used to execute the computer program stored in the memory, so that the communication device performs the The method described in any one of 1 to 8.
A communication device, characterized by comprising: an input and output interface and a logic circuit;

The input and output interface is used to obtain input information and/or output information;

The logic circuit is used for executing the method according to any one of claims 1-8, processing according to the input information and/or generating the output information.
A computer-readable storage medium, comprising:

The computer readable medium stores a computer program;

When the computer program is run on the computer, it causes the computer to execute the method according to any one of claims 1-8.
A computer program product, characterized by comprising a computer program, when the computer program is executed, the method according to any one of claims 1 to 8 is realized.