CN114727349B

CN114727349B - Method, device and storage medium for cell reselection

Info

Publication number: CN114727349B
Application number: CN202210612759.XA
Authority: CN
Inventors: 赵文龙; 朱龙昶
Original assignee: Honor Device Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2022-06-01
Filing date: 2022-06-01
Publication date: 2022-10-25
Anticipated expiration: 2042-06-01
Also published as: CN114727349A

Abstract

The embodiment of the application provides a cell reselection method, a cell reselection device and a storage medium, relates to the technical field of terminals, and is applied to terminal equipment; the method comprises the following steps: performing a data service based on a first card; in the process of executing the data service by the first card, if the second card performs cell ping-pong reselection, the terminal device controls and reduces the time that the second card occupies the radio frequency channel according to the signal parameter of the serving cell and the signal parameter of the adjacent cell. Therefore, the probability of cell reselection of the second card of the terminal equipment is reduced, the time length of the second card occupying radio frequency resources is reduced, the throughput of the first card of the terminal equipment is improved, and the user experience is improved.

Description

Method, device and storage medium for cell reselection

Technical Field

The present application relates to the field of terminal technologies, and in particular, to a method, an apparatus, and a storage medium for cell reselection.

Background

With the development of communication technology, dual-card dual-standby mobile terminals have been developed more. In order to support the development of low-cost mobile terminals, the mobile terminal can adopt a radio frequency channel to support a multi-card or multi-mode strategy.

In a possible implementation, mobile terminals with dual sim dual standby (dsdsds1.0) can share radio frequency channels by a time division multiplexing mode. However, in this scheme, since the mobile terminal is configured with only one radio frequency channel, when the Subscriber uses the Subscriber identity Module card 1 (SIM) to perform data services, the SIM card 2 in the idle mode can perform cell reselection and cell handover.

The radio frequency channel is occupied for information interaction of cell reselection and cell switching, when the SIM card 2 has more information interaction with the cell, the data service executed by the SIM card 1 is affected, the occupied frame stealing amount of the mobile terminal is increased, and therefore the throughput of the mobile terminal executing the data service is reduced, and the user experience is reduced.

Disclosure of Invention

The embodiment of the application provides a cell reselection method, a cell reselection device and a storage medium, wherein terminal equipment improves throughput of data service execution based on a first card by controlling time of a second card occupying a radio frequency channel, and improves user experience.

In a first aspect, an embodiment of the present application provides a cell reselection method, which is applied to a terminal device, where the terminal device is provided with a first card and a second card, and the first card and the second card share a radio frequency channel; the method comprises the following steps: performing a data service based on a first card; in the process of executing data service by the first card, if the second card performs cell ping-pong reselection, the terminal equipment controls and reduces the time that the second card occupies a radio frequency channel according to the signal parameter of the serving cell and the signal parameter of the adjacent cell; the serving cell is a cell where the second card resides, and the adjacent cell is a cell adjacent to the serving cell. In the implementation mode, the occupation amount of frame stealing by the second card is reduced, the throughput of the first card is improved, and the use experience of a user is improved.

In a possible implementation manner, controlling to reduce the time that the second card occupies the radio frequency channel according to the signal parameter of the serving cell and the signal parameter of the neighboring cell includes: determining a starting measurement condition according to the relation between the carrier frequencies or communication systems of the adjacent cells and the serving cell; starting a measurement condition related to a measurement threshold value of a cell adjacent to the terminal equipment; when the signal parameters of the serving cell meet the starting measurement conditions, the terminal equipment measures the signal parameters of the adjacent cells; when the signal parameters of the adjacent cells meet the cell reselection conditions, the second card of the terminal equipment is reselected to the adjacent cells from the serving cell; the cell reselection condition is related to a reselection threshold value for cell reselection by the second card of the terminal device. Therefore, the terminal device can perform cell reselection based on the set starting measurement condition and the cell reselection condition to select a cell suitable for residing as a serving cell, and further control the time of the second card occupying a radio frequency channel.

In a possible implementation manner, determining a measurement starting condition according to a relationship between carrier frequencies or communication systems of neighboring cells and serving cells includes: when the adjacent cell and the service cell are the same-frequency cell, the terminal equipment determines a starting measurement condition according to the first starting measurement threshold value; the co-frequency cells are cells with the same carrier frequency; the first starting measurement threshold value is related to the starting measurement condition of the co-frequency cell; or, when the adjacent cell and the serving cell are the pilot frequency cell and the inter-system cell, the terminal device determines the measurement starting condition according to the second measurement starting threshold value; the different-frequency cell is a cell with different carrier frequencies, and the different-system cell is a cell with different communication systems; the second start-up measurement threshold value is associated with start-up measurement conditions of the inter-frequency cell and the inter-system cell. Therefore, the relation between the carrier frequency or the communication system of the adjacent cell and the serving cell influences the starting measurement condition, and the subsequent terminal equipment can determine the starting measurement condition according to the common-frequency cell, the different-frequency cell and the different-system cell so as to set the starting measurement condition.

In one possible implementation manner, determining the start-up measurement condition according to the first start-up measurement threshold value includes: acquiring the service type of the data service; the service types comprise guaranteed bit rate GBR service and Non-guaranteed bit rate Non-GBR service; if the service type is GBR service, the terminal equipment sets the first starting measurement condition as a starting measurement condition; the first starting measurement condition is related to a hysteresis value N of the GBR service and a first starting measurement threshold value; otherwise, the terminal equipment sets the second starting measurement condition as a starting measurement condition; second starting measurement condition and ping-pong reselection frequency N of second card _pp Associated with the first start-up measurement threshold. Therefore, on the basis of the first starting measurement threshold value related to the common-frequency cell, starting measurement conditions are further set according to the time delay requirement of the data service so as to reduceThe probability of starting the measurement event occurs, thereby reducing the time that the second card occupies the radio frequency channel.

In one possible implementation, the first start-up measurement condition satisfies the following formula:

S _S as signal parameters of the serving cell, S _Intrasearch Measuring a threshold value, thresh, for the first start _X,High When the priority of the adjacent cell is higher than that of the service cell, the cell reselection threshold value of the adjacent cell is reselected. Therefore, when the second card performs cell ping-pong reselection, the terminal device can lower the threshold value of the starting measurement condition based on the hysteresis value of the GBR service, reduce the probability of starting the measurement event, and further reduce the time that the second card occupies the radio frequency channel.

In one possible implementation, the second starting measurement condition satisfies the following equation:

。

therefore, when the second card performs cell ping-pong reselection, the terminal device can reduce the threshold value of the starting measurement condition based on the cell ping-pong reselection times of Non-GBR service, reduce the probability of starting the measurement event, and further reduce the time that the second card occupies the radio frequency channel.

In a possible implementation manner, determining the measurement starting condition according to the second measurement threshold value includes: acquiring the service type of the data service; the service types comprise guaranteed bit rate GBR service and Non-guaranteed bit rate Non-GBR service; if the service type is GBR service, the terminal equipment sets the third starting measurement condition as a starting measurement condition; the third starting measurement condition is related to the hysteresis value N of the GBR service and the second measurement threshold value; otherwise, the terminal equipment sets the fourth starting measurement condition as a starting measurement condition; the fourth start-up measurement condition is related to the number Npp of ping-pong reselections occurring for the second card and the second measurement threshold value. Therefore, on the basis of the second starting measurement threshold value related to the pilot frequency cell and/or the inter-system cell, the starting measurement condition is further set through the time delay requirement of the data service, so that the probability of starting measurement events is reduced, and the time for the second card to occupy a radio frequency channel is further reduced.

In one possible implementation, the third start-up measurement condition satisfies the following formula:

S _{nonIntrasearch} the threshold value is measured for the second start. Therefore, when the second card performs cell ping-pong reselection, the terminal device can reduce the threshold value of the starting measurement condition based on the hysteresis value of the GBR service, reduce the probability of the starting measurement event, and further reduce the time that the second card occupies the radio frequency channel.

In one possible implementation, the fourth starting measurement condition satisfies the following formula:

；

therefore, when the second card performs cell ping-pong reselection, the terminal device can reduce the threshold value of the starting measurement condition based on the cell ping-pong reselection frequency of the Non-GBR service, reduce the probability of the starting measurement event, and further reduce the time that the second card occupies the radio frequency channel.

In one possible implementation manner, the method for reselecting the cell further includes: and determining the cell reselection condition according to the priority of the serving cell and the priority of the adjacent cell. In this way, the terminal device may set a cell reselection condition based on the priority for the subsequent terminal device to determine whether to perform a cell reselection event.

In one possible implementation, determining the cell reselection condition according to the priority of the serving cell and the priority of the neighboring cell includes: when the priority of the adjacent cell is higher than or equal to that of the service cell, the terminal setsSetting the first cell reselection condition as a cell reselection condition; the first cell reselection condition, the cell reselection threshold value and the ping-pong reselection times N of the second card _pp (ii) related; or, when the priority of the neighboring cell is lower than the priority of the serving cell, the terminal device sets the second cell reselection condition as the cell reselection condition; the second cell reselection condition is related to a cell reselection threshold value. Therefore, the cell reselection condition is determined according to the priority relation between the serving cell and the adjacent cell, the cell ping-pong reselection time of the second card is controlled, and the throughput of the first card executing the data service is improved.

In one possible implementation, the first cell reselection condition satisfies the following equation:

S _n is a signal parameter of a neighboring cell. Therefore, when the priority of the adjacent cell is higher than or equal to that of the serving cell, the threshold value of the cell reselection condition is increased through the cell ping-pong reselection times, so that the occurrence probability of the cell reselection event is reduced, and the time that the second card occupies the radio frequency channel is controlled.

In one possible implementation, the second cell reselection condition satisfies the following equation:

Thresh _Serving,Low when the priority of the adjacent cell is lower than that of the service cell, S _S A corresponding cell reselection threshold value; thresh _X,Low And when the priority of the adjacent cell is lower than that of the service cell, reselecting the cell reselection threshold value of the adjacent cell. Therefore, when the priority of the adjacent cell is lower than that of the serving cell, the terminal equipment determines whether the cell with the low priority is reselected or not based on the reselection condition of the second cell, so that the probability of cell reselection events is reduced, and the time that the second card occupies a radio frequency channel is controlled.

In a second aspect, an embodiment of the present application provides an apparatus for cell reselection, where the apparatus for cell reselection may be a terminal device, and may also be a chip or a chip system in the terminal device. The apparatus for cell reselection may include a processing unit and a storage unit. The storage unit may be a memory, the storage unit being for storing instructions. The processing unit may be a processor configured to execute the instructions stored by the storage unit to enable the terminal device to implement the method for cell reselection described in the first aspect or any one of the possible implementations of the first aspect.

The device for cell reselection is provided with a first card and a second card, wherein the first card and the second card share a radio frequency channel, and the processor is configured to perform a data service based on the first card; and in the process of executing the data service by the first card, if the second card performs cell ping-pong reselection, controlling and reducing the time of the second card occupying the radio frequency channel according to the signal parameter of the serving cell and the signal parameter of the adjacent cell; the serving cell is a cell where the second card resides, and the adjacent cell is a cell adjacent to the serving cell.

In a possible implementation manner, the processor is specifically configured to determine a measurement starting condition according to a relationship between carrier frequencies or communication systems of neighboring cells and a serving cell; the start-up measurement condition is related to a measurement threshold value of a neighboring cell; when the signal parameters of the serving cell meet the starting measurement conditions, measuring the signal parameters of the adjacent cells; when the signal parameters of the adjacent cells meet the cell reselection conditions, the second card is reselected to the adjacent cells from the serving cell; the cell reselection condition is related to a reselection threshold for the second card to perform cell reselection.

In a possible implementation manner, the processor is specifically configured to determine a measurement starting condition according to a first measurement starting threshold when an adjacent cell and a serving cell are co-frequency cells; the same-frequency cells are the cells with the same carrier frequency; the first starting measurement threshold value is related to the starting measurement condition of the co-frequency cell; or, when the adjacent cell and the serving cell are the pilot frequency cell and the inter-system cell, determining the starting measurement condition according to the second starting measurement threshold value; the different-frequency cells are cells with different carrier frequencies, and the different-system cells are cells with different communication systems; the second start-up measurement threshold value is associated with start-up measurement conditions of the inter-frequency cell and the inter-system cell.

In one possible implementation, the first starting measurement condition satisfies the following formula:

S _S as signal parameters of the serving cell, S _Intrasearch For the first start of the measurement threshold, thresh _X,High And when the priority of the adjacent cell is higher than that of the service cell, reselecting the cell reselection threshold value of the adjacent cell.

In one possible implementation, the second starting measurement condition satisfies the following formula:

。

in a possible implementation manner, the processor is configured to determine a measurement starting condition according to the second measurement threshold, and specifically includes:

acquiring the service type of the data service; the service types comprise guaranteed bit rate GBR service and Non-guaranteed bit rate Non-GBR service; if the service type is GBR service, setting the third starting measurement condition as a starting measurement condition; the third starting measurement condition is related to the hysteresis value N of the GBR service and the second measurement threshold value; otherwise, setting the fourth starting measurement condition as the starting measurement condition; fourth starting measurement condition and ping-pong reselection frequency N of the second card _pp And a second measurement threshold value.

In one possible implementation, the third starting measurement condition satisfies the following formula:

S _{nonIntrasearch} for the second start-up testThe quantity threshold value.

。

in a possible implementation, the processor is further configured to determine the cell reselection condition according to a priority of the serving cell and a priority of the neighboring cell.

In a possible implementation manner, the processor is configured to determine a cell reselection condition according to a priority of a serving cell and a priority of a neighboring cell, and specifically includes:

setting the first cell reselection condition as a cell reselection condition when the priority of the neighboring cell is higher than or equal to the priority of the serving cell; the first cell reselection condition is related to a cell reselection threshold value and the ping-pong reselection times Npp of the second card; or when the priority of the adjacent cell is lower than that of the serving cell, setting the second cell reselection condition as the cell reselection condition; the second cell reselection condition is related to a cell reselection threshold value.

In one possible implementation, the first cell reselection condition satisfies the following formula:

S _n is a signal parameter of a neighboring cell.

In one possible implementation, the second cell reselection condition satisfies the following formula:

Thresh _Serving,Low when the priority of the adjacent cell is lower than that of the service cell, S _S A corresponding cell reselection threshold value; thresh _X,Low And when the priority of the adjacent cell is lower than that of the service cell, reselecting the cell reselection threshold value of the adjacent cell.

In a third aspect, an embodiment of the present application provides an electronic device, including: a processor and a memory, the processor being configured to invoke a program in the memory to cause the terminal device to perform any of the methods for performing the first aspect or any of the possible implementations of the first aspect.

In a fourth aspect, embodiments of the present application provide a computer-readable storage medium storing instructions that, when executed, implement the first aspect or any of the possible implementation manners of the first aspect.

In a fifth aspect, the present application provides a computer program product including a computer program, which when run on a computer causes the computer to perform the method described in the first aspect or any one of the possible implementation manners of the first aspect.

It should be understood that the second aspect to the sixth aspect of the present application correspond to the technical solutions of the first aspect of the present application, and the beneficial effects achieved by the aspects and the corresponding possible implementations are similar and will not be described again.

Drawings

Fig. 1 is a schematic structural diagram of a terminal device 100 according to an embodiment of the present application;

fig. 2 is a schematic diagram of a software structure of a terminal device 100 according to an embodiment of the present application;

fig. 3 is a schematic view of an application scenario provided in an embodiment of the present application;

fig. 4 is a schematic structural diagram of a radio frequency integrated circuit of the terminal device 100 according to an embodiment of the present disclosure;

fig. 5 is a schematic diagram of a cell reselection scenario in a possible implementation;

fig. 6 is a schematic diagram illustrating a cell reselection process in a possible implementation;

fig. 7 is a flowchart illustrating a method for cell reselection according to an embodiment of the present application;

fig. 8 is a schematic flowchart of radio frequency resource allocation of a terminal device according to an embodiment of the present application;

fig. 9 is a flowchart illustrating a method for cell reselection according to an embodiment of the present application;

fig. 10 is a flowchart illustrating a method for cell reselection according to an embodiment of the present application;

fig. 11 is a flowchart illustrating a method for cell reselection according to an embodiment of the present application;

fig. 12 is a flowchart illustrating a method for cell reselection according to an embodiment of the present application;

fig. 13 is a schematic structural diagram of an apparatus for cell reselection according to an embodiment of the present disclosure.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. The following description refers to the accompanying drawings in which the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

The terms referred to in this application are explained first:

1) Protocol Stack Software (PSS): the embodiment of the application can be in a multi-card or multi-mode.

2) Throughput: the amount of data transmitted over the network per unit time may also refer to the number of processing user requests per unit time.

3) Radio Frequency Integrated Circuit (RFIC): is an electronic circuit that uses active devices to achieve signal frequencies in the Radio Frequency (RF) range.

4) Discontinuous Reception (DRX): DRX may cause a User Equipment (UE) to periodically enter a sleep mode (sleep mode), and wake up the UE from the sleep mode when the UE needs to monitor a Physical Downlink Control Channel (PDCCH). If there is no DRX mechanism, the UE may monitor the PDCCH all the time to see if there is information from the serving cell. The DRX mechanism may enable the UE to achieve power saving.

5) System Information Block (SIB): information exchanged between the UE and the cell. In the embodiments of the present application, SIB1 to SIB5 may be mentioned, and the following definitions are given:

SIB1 contains scheduling information and access related information for other cells.

SIB2 carries all UE radio resource configuration information.

The SIB3 carries cell reselection information of the same frequency, different frequency and different systems.

SIB4 carries reselection information for neighboring cells only co-frequency neighboring cells.

SIB5 carries inter-frequency E-UTRAN network reselection information.

6) Guaranteed Bit Rate (GBR) traffic: some services with high real-time requirements require the scheduler to guarantee a minimum bit rate for this type of bearer.

7) Other terms

In the embodiments of the present application, the words "first", "second", and the like are used to distinguish the same items or similar items having substantially the same functions and actions. For example, the first chip and the second chip are only used for distinguishing different chips, and the sequence order thereof is not limited. Those skilled in the art will appreciate that the terms "first," "second," etc. do not denote any order or quantity, nor do the terms "first," "second," etc. denote any order or importance.

It should be noted that in the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present relevant concepts in a concrete fashion.

In the embodiments of the present application, "at least one" means one or more, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a alone, A and B together, and B alone, wherein A and B may be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of the singular or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c can be single or multiple.

In this embodiment, the electronic device may include a terminal device, and the terminal device may also be referred to as a terminal (terminal), a User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (MT), and the like. The terminal device may be a mobile phone (mobile phone), a smart tv, a wearable device, a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, a wireless terminal in industrial control (industrial control), a wireless terminal in self-driving (self-driving), a wireless terminal in remote surgery (remote medical supply), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety (transportation safety), a wireless terminal in smart city (smart city), a wireless terminal in smart home (smart home), and so on. The embodiment of the present application does not limit the specific technology and the specific device form adopted by the terminal device.

In order to better understand the embodiments of the present application, the following describes the structure of the terminal device according to the embodiments of the present application:

fig. 1 shows a schematic configuration diagram of a terminal device 100. The terminal device 100 may include a processor 110, an external memory interface 120, an internal memory 121, a Universal Serial Bus (USB) interface 1300, a charging management module 140, a power management module 141, a battery 142, an antenna 1, an antenna 2, a mobile communication module 150, a wireless communication module 160, an audio module 170, a speaker 170A, a receiver 170B, a microphone 170C, an earphone interface 170D, a sensor module 180, a button 190, a motor 191, an indicator 192, a camera 193, a display screen 194, a Subscriber Identity Module (SIM) card interface 195, and the like.

Wherein, the sensor module 180 may include a pressure sensor, a gyroscope sensor, an air pressure sensor, a magnetic sensor, an acceleration sensor, a distance sensor, a proximity light sensor, a fingerprint sensor, a temperature sensor, a touch sensor, an ambient light sensor, a bone conduction sensor, etc.

It is to be understood that the illustrated structure of the embodiment of the present application does not constitute a specific limitation to the terminal device 100. In other embodiments of the present application, the terminal device 100 may include more or fewer components than shown, or combine certain components, or split certain components, or a different arrangement of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

Processor 110 may include one or more processing units, such as: the processor 110 may include an Application Processor (AP), a modem processor, a Graphics Processor (GPU), an Image Signal Processor (ISP), a controller, a video codec, a Digital Signal Processor (DSP), a baseband processor, and/or a neural-Network Processing Unit (NPU), etc. The different processing units may be separate devices or may be integrated into one or more processors.

The controller can generate an operation control signal according to the instruction operation code and the timing signal to complete the control of instruction fetching and instruction execution.

A memory may also be provided in processor 110 for storing instructions and data. In some embodiments, the memory in the processor 110 is a cache memory. The memory may hold instructions or data that have just been used or recycled by the processor 110. If the processor 110 needs to use the instruction or data again, it may be called from memory. Avoiding repeated accesses reduces the latency of the processor 110, thereby increasing the efficiency of the system.

In some embodiments, processor 110 may include one or more interfaces. The interface may include an integrated circuit (I2C) interface, an integrated circuit built-in audio (I2S) interface, a Pulse Code Modulation (PCM) interface, a universal asynchronous receiver/transmitter (UART) interface, a Mobile Industry Processor Interface (MIPI), a general-purpose input/output (GPIO) interface, a Subscriber Identity Module (SIM) interface, and/or a Universal Serial Bus (USB) interface, etc.

It should be understood that the interface connection relationship between the modules illustrated in the embodiment of the present application is an illustrative description, and does not limit the structure of the terminal device 100. In other embodiments of the present application, the terminal device 100 may also adopt different interface connection manners or a combination of multiple interface connection manners in the above embodiments.

The charging management module 140 is configured to receive a charging input from a charger. The charger may be a wireless charger or a wired charger. In some wired charging embodiments, the charging management module 140 may receive charging input from a wired charger via the USB interface 1300. In some wireless charging embodiments, the charging management module 140 may receive a wireless charging input through a wireless charging coil of the terminal device 100. The charging management module 140 may also supply power to the terminal device through the power management module 141 while charging the battery 142.

The power management module 141 is used to connect the battery 142, the charging management module 140 and the processor 110. The power management module 141 receives input from the battery 142 and/or the charging management module 140, and supplies power to the processor 110, the internal memory 121, the display 194, the camera 193, the wireless communication module 160, and the like. The power management module 141 may also be used to monitor parameters such as battery capacity, battery cycle count, battery state of health (leakage, impedance), etc. In other embodiments, the power management module 141 may be disposed in the processor 110. In other embodiments, the power management module 141 and the charging management module 140 may be disposed in the same device.

The wireless communication function of the terminal device 100 may be implemented by the antenna 1, the antenna 2, the mobile communication module 150, the wireless communication module 160, a modem processor, a baseband processor, and the like.

The

antennas

1 and 2 are used for transmitting and receiving electromagnetic wave signals. The antennas in terminal device 100 may be used to cover a single or multiple communication bands. Different antennas can also be multiplexed to improve the utilization of the antennas. For example: the antenna 1 may be multiplexed as a diversity antenna of a wireless local area network. In other embodiments, the antenna may be used in conjunction with a tuning switch.

The mobile communication module 150 may provide a solution including 2G/3G/4G/5G wireless communication applied on the terminal device 100. The mobile communication module 150 may include at least one filter, a switch, a power amplifier, a Low Noise Amplifier (LNA), and the like. The mobile communication module 150 may receive the electromagnetic wave from the antenna 1, filter, amplify, etc. the received electromagnetic wave, and transmit the electromagnetic wave to the modem processor for demodulation. The mobile communication module 150 may also amplify the signal modulated by the modem processor, and convert the signal into electromagnetic wave through the antenna 1 to radiate the electromagnetic wave. In some embodiments, at least some of the functional modules of the mobile communication module 150 may be disposed in the processor 110. In some embodiments, at least some of the functional modules of the mobile communication module 150 may be provided in the same device as at least some of the modules of the processor 110.

The modem processor may include a modulator and a demodulator. The modulator is used for modulating a low-frequency baseband signal to be transmitted into a medium-high frequency signal. The demodulator is used for demodulating the received electromagnetic wave signal into a low-frequency baseband signal. The demodulator then passes the demodulated low frequency baseband signal to a baseband processor for processing. The low frequency baseband signal is processed by the baseband processor and then transferred to the application processor. The application processor outputs a sound signal through an audio device (not limited to the speaker 170A, the receiver 170B, etc.) or displays an image or video through the display screen 194. In some embodiments, the modem processor may be a stand-alone device. In other embodiments, the modem processor may be provided in the same device as the mobile communication module 150 or other functional modules, independent of the processor 110.

The wireless communication module 160 may provide a solution for wireless communication applied to the terminal device 100, including Wireless Local Area Networks (WLANs) (e.g., wireless fidelity (Wi-Fi) networks), bluetooth (bluetooth, BT), global Navigation Satellite System (GNSS), frequency Modulation (FM), near Field Communication (NFC), infrared (IR), and the like. The wireless communication module 160 may be one or more devices integrating at least one communication processing module. The wireless communication module 160 receives electromagnetic waves via the antenna 2, performs frequency modulation and filtering processing on electromagnetic wave signals, and transmits the processed signals to the processor 110. The wireless communication module 160 may also receive a signal to be transmitted from the processor 110, perform frequency modulation and amplification on the signal, and convert the signal into electromagnetic waves through the antenna 2 to radiate the electromagnetic waves.

In some embodiments, the antenna 1 of the terminal device 100 is coupled to the mobile communication module 150 and the antenna 2 is coupled to the wireless communication module 160 so that the terminal device 100 can communicate with a network and other devices through wireless communication technology. The wireless communication technology may include global system for mobile communications (GSM), general Packet Radio Service (GPRS), code Division Multiple Access (CDMA), wideband Code Division Multiple Access (WCDMA), time-division code division multiple access (time-division code division multiple access, TD-SCDMA), long Term Evolution (LTE), LTE, BT, GNSS, WLAN, NFC, FM, and/or IR technologies, etc. GNSS may include Global Positioning System (GPS), global navigation satellite system (GLONASS), beidou satellite navigation system (BDS), quasi-zenith satellite system (QZSS), and/or Satellite Based Augmentation System (SBAS).

The terminal device 100 implements a display function by the GPU, the display screen 194, and the application processor. The GPU is a microprocessor for image processing, and is connected to the display screen 194 and an application processor. The GPU is used to perform mathematical and geometric calculations for graphics rendering. The processor 110 may include one or more GPUs that execute program instructions to generate or alter display information.

The display screen 194 is used to display images, video, and the like. The display screen 194 includes a display panel. The display panel may be a Liquid Crystal Display (LCD), an organic light-emitting diode (OLED), an active-matrix organic light-emitting diode (active-matrix organic light-emitting diode, AMOLED), a flexible light-emitting diode (FLED), a miniature, a Micro-oeld, a quantum dot light-emitting diode (QLED), or the like. In some embodiments, the terminal device 100 may include 1 or N display screens 194, N being a positive integer greater than 1.

The terminal device 100 may implement a shooting function through the ISP, the camera 193, the video codec, the GPU, the display screen 194, the application processor, and the like.

The ISP is used to process the data fed back by the camera 193. For example, when a photo is taken, the shutter is opened, light is transmitted to the camera photosensitive element through the lens, the optical signal is converted into an electrical signal, and the camera photosensitive element transmits the electrical signal to the ISP for processing and converting into an image visible to naked eyes. The ISP can also carry out algorithm optimization on the noise, brightness and skin color of the image. The ISP can also optimize parameters such as exposure, color temperature and the like of a shooting scene. In some embodiments, the ISP may be provided in camera 193.

The camera 193 is used to capture still images or video. The object generates an optical image through the lens and projects the optical image to the photosensitive element. The photosensitive element may be a Charge Coupled Device (CCD) or a complementary metal-oxide-semiconductor (CMOS) phototransistor. The light sensing element converts the optical signal into an electrical signal, which is then passed to the ISP where it is converted into a digital image signal. And the ISP outputs the digital image signal to the DSP for processing. The DSP converts the digital image signal into an image signal in a standard RGB, YUV and other formats. In some embodiments, the terminal device 100 may include 1 or N cameras 193, N being a positive integer greater than 1.

The digital signal processor is used for processing digital signals, and can process other digital signals besides digital image signals. For example, when the terminal device 100 selects a frequency point, the digital signal processor is used to perform fourier transform or the like on the frequency point energy.

Video codecs are used to compress or decompress digital video. The terminal device 100 may support one or more video codecs. In this way, the terminal device 100 can play or record video in a plurality of encoding formats, such as: moving Picture Experts Group (MPEG) 1, MPEG2, MPEG3, MPEG4, and the like.

The NPU is a neural-network (NN) computing processor that processes input information quickly by using a biological neural network structure, for example, by using a transfer mode between neurons of a human brain, and can also learn by itself continuously. The NPU can implement applications such as intelligent recognition of the terminal device 100, for example: image recognition, face recognition, speech recognition, text understanding, and the like.

The external memory interface 120 may be used to connect an external memory card, such as a Micro SD card, to extend the storage capability of the terminal device 100. The external memory card communicates with the processor 110 through the external memory interface 120 to implement a data storage function. For example, files such as music, video, etc. are saved in the external memory card.

The internal memory 121 may be used to store computer-executable program code, which includes instructions. The internal memory 121 may include a program storage area and a data storage area. The storage program area may store an operating system, an application program (such as a sound playing function, an image playing function, etc.) required by at least one function, and the like. The storage data area may store data (such as audio data, a phonebook, etc.) created during use of the terminal device 100, and the like. In addition, the internal memory 121 may include a high speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, a Universal Flash Storage (UFS), and the like. The processor 110 executes various functional applications of the terminal device 100 and data processing by executing instructions stored in the internal memory 121 and/or instructions stored in a memory provided in the processor.

The terminal device 100 may implement an audio function through the audio module 170, the speaker 170A, the receiver 170B, the microphone 170C, the earphone interface 170D, and the application processor. Such as music playing, recording, etc.

The audio module 170 is used to convert digital audio information into an analog audio signal output and also to convert an analog audio input into a digital audio signal. The audio module 170 may also be used to encode and decode audio signals. In some embodiments, the audio module 170 may be disposed in the processor 110, or some functional modules of the audio module 170 may be disposed in the processor 110.

The speaker 170A, also called a "horn", is used to convert the audio electrical signal into an acoustic signal. The terminal device 100 can listen to music through the speaker 170A, or listen to a handsfree call.

The receiver 170B, also called "earpiece", is used to convert the electrical audio signal into a sound signal. When the terminal device 100 answers a call or voice information, it is possible to answer a voice by bringing the receiver 170B close to the human ear.

The microphone 170C, also referred to as a "microphone," is used to convert sound signals into electrical signals. When making a call or sending voice information, the user can input a voice signal to the microphone 170C by uttering a voice signal close to the microphone 170C through the mouth of the user. The terminal device 100 may be provided with at least one microphone 170C. In other embodiments, the terminal device 100 may be provided with two microphones 170C, which may implement a noise reduction function in addition to collecting sound signals. In other embodiments, the terminal device 100 may further include three, four or more microphones 170C to collect a sound signal, reduce noise, identify a sound source, and implement a directional recording function.

The earphone interface 170D is used to connect a wired earphone. The headset interface 170D may be a USB interface 1300, or may be a 3.5mm open mobile electronic device platform (OMTP) standard interface, a cellular telecommunications industry association (cellular telecommunications industry association of the USA, CTIA) standard interface.

Illustratively, the terminal device 100 may further include one or more of a key 190, a motor 191, an indicator 192, a SIM card interface 195 (eSIM card), and the like.

The software system of the terminal device 100 may adopt a hierarchical architecture, an event-driven architecture, a micro-core architecture, a micro-service architecture, a cloud architecture, or the like. The embodiment of the present application takes an Android system with a hierarchical architecture as an example, and exemplarily illustrates a software structure of the terminal device 100.

Fig. 2 is a block diagram of a software configuration of the terminal device 100 according to the embodiment of the present application.

The layered architecture divides the software into several layers, each layer having a clear role and division of labor. The layers communicate with each other through a software interface. In some embodiments, the Android system is divided into four layers, an application layer, an application framework layer, an Android runtime (Android runtime) and system library, and a kernel layer from top to bottom.

The application layer may include a series of application packages.

As shown in fig. 2, the application package may include camera, calendar, phone, map, phone, music, settings, mailbox, video, social, etc. applications.

The application framework layer provides an Application Programming Interface (API) and a programming framework for the application program of the application layer. The application framework layer includes a number of predefined functions.

As shown in FIG. 2, the application framework layers may include a window manager, content provider, resource manager, view system, notification manager, and the like.

The window manager is used for managing window programs. The window manager can obtain the size of the display screen, judge whether a status bar exists, lock the screen, touch the screen, drag the screen, intercept the screen and the like.

The content provider is used to store and retrieve data and make it accessible to applications. The data may include video, images, audio, calls made and received, browsing history and bookmarks, phone books, etc.

The view system includes visual controls such as controls to display text, controls to display pictures, and the like. The view system may be used to build applications. The display interface may be composed of one or more views. For example, the display interface including the short message notification icon may include a view for displaying text and a view for displaying pictures.

The resource manager provides various resources for the application, such as localized strings, icons, pictures, layout files, video files, and the like.

The notification manager enables the application to display notification information in the status bar, can be used to convey notification-type messages, can disappear automatically after a short dwell, and does not require user interaction. Such as a notification manager used to notify download completion, message alerts, etc. The notification manager may also be a notification that appears in the form of a chart or scroll bar text at the top status bar of the system, such as a notification of a background running application, or a notification that appears on the screen in the form of a dialog window. For example, text information is prompted in the status bar, a prompt tone is given, the terminal device vibrates, an indicator light flickers, and the like.

The Android runtime comprises a core library and a virtual machine. The Android runtime is responsible for scheduling and managing an Android system.

The core library comprises two parts: one part is a function which needs to be called by java language, and the other part is a core library of android.

The application layer and the application framework layer run in a virtual machine. And executing java files of the application program layer and the application program framework layer into a binary file by the virtual machine. The virtual machine is used for performing the functions of object life cycle management, stack management, thread management, safety and exception management, garbage collection and the like.

The system library may include a plurality of functional modules. For example: surface managers (surface managers), media Libraries (Media Libraries), three-dimensional graphics processing Libraries (e.g., openGL ES), 2D graphics engines (e.g., SGL), and the like.

The surface manager is used to manage the display subsystem and provide fusion of 2D and 3D layers for multiple applications.

The media library supports a variety of commonly used audio, video format playback and recording, and still image files, among others. The media library may support a variety of audio-video encoding formats such as MPEG4, h.264, MP3, AAC, AMR, JPG, PNG, etc.

The three-dimensional graphic processing library is used for realizing three-dimensional graphic drawing, image rendering, synthesis, layer processing and the like.

The 2D graphics engine is a drawing engine for 2D drawing.

The kernel layer is a layer between hardware and software. The inner core layer at least comprises a display driver, a camera driver, an audio driver and a sensor driver.

The method for cell reselection provided in the embodiments of the present application is described in detail below with reference to the accompanying drawings. In the present embodiment, "at 8230 \ 8230at 8230:" may be a moment occurring in a certain situation, or may be a period of time after a certain situation occurs, and the present embodiment is not particularly limited thereto.

Taking the electronic device 100 as a terminal device as an example, a scenario in which the terminal device implements cell reselection will be described below. Fig. 3 is a schematic view of a cell reselection scenario provided in the embodiment of the present application.

As shown in fig. 3, a cell reselection system may comprise: base station and terminal equipment, the base station can be: a macro base station, a micro base station, a pico base station, a small station, a relay station, a balloon station, or the like. The number of base stations may be one or more, and the base stations may provide a plurality of cells, for example, a current cell in which the terminal device 100 resides may be defined as a serving cell 301, and a cell adjacent to the serving cell 301 may be defined as an adjacent cell 302. Serving cell 301 and neighboring cell 302 may be served by the same or different base stations.

The terminal device 100 may be an electronic device configured with two or more cards, as shown in fig. 4, the terminal device includes a first card (SIM 1) and a second card (SIM 2), and the SIM1 and the SIM2 share a radio frequency channel. When the SIM1 executes the service data, the SIM2 is in a standby state, and the SIM2 in an idle state can perform cell switching or cell reselection. In a possible implementation manner, the SIM1 of the terminal device 100 is performing a data service, and the SIM2 of the terminal device 100 may perform information interaction with the base station of the serving cell 301; the serving cell in the embodiment of the present application is related to an adjacent cell and a second card in an idle state, and the embodiment of the present application does not limit a cell in which a first card performing a data service resides, and a cell in which SIM1 resides and a cell in which SIM2 resides may be the same cell or different cells.

In a possible implementation, the second card in the idle state may have a cell ping-pong reselection scenario. A possible implementation scenario of cell ping-pong reselection of the second card of the terminal device is described below with reference to fig. 5.

It can be understood that, in the embodiment of the present application, the terminal device performs the data service based on the first card, and the second card is in the idle state as an example. In some embodiments, it may also be that the terminal device performs the data service based on the second card, and the first card is in an idle state. The terminal equipment supporting multi-card multi-standby can also execute data service based on any card, and other cards are in idle states. The embodiments of the present application do not limit this.

An exemplary cell reselection scenario may be as shown in fig. 5. And the terminal equipment resides in the cell B, and reselects the resident cell to the cell C in the cell reselection process.

In an abnormal cell reselection scenario, a terminal device performs cell ping-pong reselection, where the cell ping-pong reselection may be a scenario in which the terminal device frequently reselects between two or more cells due to an improper configuration of cell reselection parameters. For example: and the terminal equipment resides in the cell B, and when the information of the cell A and the cell B meets the reselection condition, the terminal equipment resides in the cell A. And when the cell reselection parameters are not configured properly, the resident cell of the terminal equipment is reselected from the cell A to the cell B. During a period of time, the resident cell of the terminal device is frequently switched between the cell a and the cell B, resulting in cell ping-pong reselection.

Cell ping-pong reselection may be related to cell reselection parameters, the reason for which is described below in conjunction with fig. 6. Fig. 6 shows a schematic flow diagram of cell reselection performed by a terminal device based on reselection parameters in a possible implementation. As shown in fig. 6:

the flow of cell reselection may include initiating a measurement procedure and a cell reselection procedure. The cell reselection parameters may include an initiate measurement threshold value and a cell reselection threshold value. When the signal parameter of the serving cell is lower than the start measurement threshold value, the network resource where the terminal device is currently located is poor, the terminal device can measure the signal parameter of the adjacent cell, if the signal parameter of the adjacent cell meets the cell reselection threshold value, the adjacent cell is suitable for the terminal device to reside, and the terminal device reselects from the serving cell to the adjacent cell. The initiation of the measurement procedure and the cell reselection procedure may be as follows:

s601, the terminal equipment acquires the signal parameters of the serving cell.

When the terminal equipment resides in the serving cell, the terminal equipment can continuously measure the signal parameters of the serving cell.

S602, the terminal equipment determines starting measurement conditions based on the system information; and when the signal parameter of the serving cell meets the starting measurement condition, the terminal equipment measures the signal parameter of the adjacent cell.

The terminal device may also obtain system messages of the serving cell and system messages of the neighboring cells. And the terminal equipment determines whether to start the measurement of the adjacent cell according to the system message.

The system message may include a priority, a carrier frequency starting measurement threshold value, a cell reselection threshold value, and the like. The process of the terminal device performing the start-up measurement may be as shown in a of fig. 6:

it is to be understood that the terminal device may obtain the priorities of the neighboring cell and the serving cell from the system message, and the neighboring cell having a higher priority than the serving cell may be a high priority cell. The neighbor cells having a priority equal to the serving cell may be the same priority cells, and the neighbor cells having a priority lower than the serving cell may be low priority cells.

When the priority of the adjacent cell is higher than that of the serving cell, the terminal equipment can directly start measurement on the adjacent cell.

When the priority of the adjacent cell is equal to that of the service cell, the terminal equipment determines the carrier frequencies of the adjacent cell and the service cell. In one case, if the neighboring cell and the serving cell are in the same frequency, the terminal device determines whether to start measurement of the neighboring cell according to a first start measurement threshold. The first start-up measurement threshold value may include S _IntrasearchQ And S _IntrasearchP First start measurement

The threshold value is related to the same frequency cell, and the signal parameter of the serving cell can include S _rxlev,s And S _qual,s 。

The terminal device may start measurements of neighboring cells.

In another case, if the neighboring cell and the serving cell are in different frequencies or in different communication systems, the terminal device root

And determining whether to start the measurement of the adjacent cell according to the second starting measurement threshold value. The second start measurement threshold value may include S _{nonIntrasearchQ} And S _{nonIntrasearchP} . The second start measurement threshold is associated with an Inter Radio Access Technology (IRAT) cell.

The terminal device may start measurements of neighboring cells.

And when the priority of the adjacent cell is lower than that of the service cell, the terminal equipment determines whether to start the measurement of the adjacent cell according to the second starting measurement threshold value.

The terminal device may start measurements of neighboring cells.

S603, the terminal equipment determines a cell reselection condition based on the system message; and when the signal parameters of the adjacent cells meet the cell reselection conditions, the terminal equipment resides in the adjacent cells.

When the terminal device satisfies step S602, it performs measurement on the neighboring cell to obtain signal parameter S of the neighboring cell _rxlev,n And S _qual,n . And the terminal equipment determines whether to reselect the resident cell from the serving cell to the adjacent cell according to the system message. The cell reselection procedure may be as shown in b of fig. 6:

when the priority of the adjacent cell is higher than that of the serving cell, the terminal equipment starts cell reselection and needs to meet the following conditions:

if the system message includes a threshServingLowQ parameter, which defines a measurement threshold of the serving cell when the terminal device reselects a cell with a lower priority, in this case, the neighboring cell also needs to satisfy the threshold. The high priority cell reselection conditions are as follows:

Thresh _X,HighQ and the reselection threshold is the reselection threshold of the high priority cell corresponding to the signal quality.

2) Duration T _{reselectionRAT} The time is always satisfied that the UE has camped on the current serving cell for more than 1 second. T is _{reselectionRAT} For reselection time, the communication systems of the cells are different, T _{reselectionRAT} Different. For example, in the case of 5GNR (new radio, new air interface), the reselection time is T _{ReselectionNR} . In LTE (long term evolution), the reselection time is T _{ReselectionEUTRA} 。

If the system message does not include the threshServinLowQ parameter, the high-priority cell reselection condition is as follows:

Thresh _X,HighP and the reselection threshold is the reselection threshold of the high priority cell corresponding to the signal strength.

2) Sustained T _{reselectionRAT} The time is always enough for the UE to camp on the current serving cell for more than 1 second.

When the priority of the adjacent cell is the same as that of the serving cell, the terminal equipment starts cell reselection and needs to meet the R criterion.

Wherein R is _S Rating value, R, for serving cell _n Rating, Q, for neighbouring cells _meas,s Referencing for measured serving cellsSignal Received Power (RSRP), Q _meas,n For measured RSRP, Q of neighbouring cells _hyst The hysteresis value is reselected for the serving cell, qoffset being the quality offset value of the neighbouring cell, qoffset _temp An offset value is temporarily added.

The reselection conditions of the cells with the same priority are as follows:

1) R _n >R _s

2) Duration T _{reselectionRAT} The time is always enough for the UE to camp on the current serving cell for more than 1 second.

When the priority of the adjacent cell is lower than that of the serving cell, the terminal equipment starts cell reselection and needs to meet the following conditions:

if the system message includes the threshServinLowQ parameter, the low-priority cell reselection condition is:

Thresh _Serving,LowQ a signal quality threshold value required by the serving cell when the terminal device is reselected to a low priority cell.

Thresh _X,LowQ And reselecting a threshold for a low-priority cell corresponding to the signal quality.

3) Duration T _{reselectionRAT} The time is always satisfied that the UE has camped on the current serving cell for more than 1 second.

If the system message does not include the threshServinLowQ parameter, the low-priority cell reselection condition is as follows:

Thresh _Serving,LowP a signal strength threshold value required by the serving cell when the terminal device reselects to a low priority cell.

Thresh _X,LowP And reselecting a threshold for the low-priority cell corresponding to the signal strength.

It is to be understood that, in a possible implementation, the second card of the terminal device may perform the cell reselection procedure according to the starting measurement threshold value and the cell reselection threshold value. When the configuration of the start measurement threshold and the cell reselection threshold is not proper, the cell where the second card of the terminal device resides may be frequently reselected between the serving cell and the neighboring cell due to unstable network resources, which may cause ping-pong reselection. Because the cell reselection parameter is fixed from the system message, the terminal device is difficult to automatically adjust the ping-pong reselection of the cell, and the second card occupies the radio frequency resource, thereby reducing the efficiency of the first card in executing the data service.

In view of this, an embodiment of the present application provides a cell reselection method, which is applied to a terminal device, where the terminal device is provided with a first card and a second card, and the first card and the second card share a radio frequency channel; the method comprises the following steps: performing a data service based on a first card; in the process of executing the data service by the first card, if the second card performs cell ping-pong reselection, the terminal device controls and reduces the time that the second card occupies the radio frequency channel according to the signal parameter of the serving cell and the signal parameter of the adjacent cell. Therefore, the embodiment of the application reduces the proportion of the second card occupying resources by reducing the probability of cell reselection, thereby improving the throughput of the first card of the terminal equipment and improving the user experience.

The embodiment of the application provides a cell reselection method to improve the data volume received by a first card. The following describes the technical solutions of the present application and how to solve the above technical problems with specific embodiments. The following embodiments may be implemented independently or in combination, and details of the same or similar concepts or processes may not be repeated in some embodiments.

Exemplarily, taking a terminal device including two cards as an example, fig. 7 illustrates a flowchart of a method for cell reselection in this embodiment.

S701, executing data service based on the first card.

The terminal equipment can be provided with a first card and a second card which can share a radio frequency channel. For the sake of distinction, in the embodiment of the present application, a card executing a data service is defined as a first card, and another card in an idle state is defined as a second card. It is to be understood that the card performing the data service and the card in the idle state may also be named in other forms, which is not limited in this embodiment of the present application. The data service may be a service for data transmission and information interaction of the terminal device. The first card of the terminal device may occupy the radio frequency channel and perform a data service.

S702, in the process of executing the data service by the first card, if the second card performs cell ping-pong reselection, the terminal device controls and reduces the time that the second card occupies the radio frequency channel according to the signal parameter of the serving cell and the signal parameter of the adjacent cell.

The serving cell is a cell where the second card resides, and the adjacent cell is a cell adjacent to the serving cell. The signal parameter S may comprise a signal strength value S _rxlev And signal quality value S _qual The signal strength value may be a Reference Signal Received Power (RSRP) and the signal quality value may be a Reference Signal Received Quality (RSRQ).

When the terminal device detects that the first card executes data service and the second card performs cell ping-pong reselection, the second card frequently exchanges information with a serving cell and an adjacent cell, and the second card occupies a radio frequency channel for a long time. The terminal equipment can improve the throughput of the first card by controlling and reducing the time of the second card occupying the radio frequency channel.

The embodiment of the application provides a method for reselecting a cell, which executes data service based on a first card; in the process of executing the data service by the first card, if the second card performs cell ping-pong reselection, the terminal device controls and reduces the time that the second card occupies the radio frequency channel according to the signal parameter of the serving cell and the signal parameter of the adjacent cell. Therefore, the occupation amount of frame stealing by the second card is reduced, the throughput of the first card is improved, and the use experience of a user is improved.

A scenario in which the terminal device controls the time of occupying the radio frequency channel of the second card is described below with reference to fig. 8. For example, fig. 8 shows a flowchart of radio frequency resource allocation of a first card and a second card of a terminal device.

As shown in fig. 8, the terminal device includes a first card and a second card, wherein the first card is in a connected state (connected) and the second card is in an idle state (idle). Illustratively, t1, t2 and t3 are three periods of discontinuous reception DRX, respectively.

Radio frequency resources of the terminal device may be allocated to the first card and the second card during the DRX period. The period of time for the terminal device to adjust the radio frequency resource to the first card can be defined as a first adjustment time T _{tuneAway,SIM（1）} The period of time for the terminal device to adjust the radio frequency resource to the second card can be defined as a second adjustment time T _{tuneAway,SIM（2）} . The first adjustment time is understood to be the time that the first card occupies the radio frequency channel, and the second adjustment time is understood to be the time that the second card occupies the radio frequency channel. The sum of the first adjustment time and the second adjustment time is one period of discontinuous reception. For example, taking T1 as an example, the first adjustment time of T1 is T _{tuneAway,SIM（1）} (T1), the second adjustment time of T1 is T _{tuneAway,SIM（2）} （t1）。t1= T _{tuneAway,SIM（1）} （t1）+ T _{tuneAway,SIM（2）} （t1）。

And in the first adjustment time, a first card of the terminal equipment occupies radio frequency resources, the first card is in a data service period, and in the period, the terminal equipment can execute data service based on the first card. And in the first adjustment time, the second card of the terminal equipment can be in a sleep state. And in the second adjustment time, a second card of the terminal equipment occupies the radio frequency resource, the second card is converted into an awakening state from a sleeping state, and the cell reselection can be executed when the second card is in the awakening state. The second card of the terminal device may perform a paging monitoring event, a neighbor cell measurement event, a base station signaling acquisition event, a system message acquisition event, and the like at the second adjustment time.

For example, taking T1 time period of discontinuous reception as an example, the second card of the terminal device may be at T _{tuneAway,SIM（2）} And paging monitoring is carried out on the cell in the (t 1) time period. In the process, the second card of the terminal device may obtain the information of the serving cell, and determine whether a measurement starting procedure for cell reselection is required at present based on the information of the serving cell. If the second card determines that the serving cell does not meet the condition for starting measurement, the paging monitoring is finished, and the second card of the terminal equipment can enter a sleep state. Wherein the time t of paging monitoring _sync,1 = T _{tuneAway,SIM（2）} （t1）。

Taking T2 time period of discontinuous reception as an example, the second card of the terminal device may be at T _{tuneAway,SIM（2）} (t 2) paging monitoring and neighbor cell measurements are performed for the cell during the time period. In the process, the second card of the terminal equipment can obtain the information of the serving cell, and if the second card determines that the serving cell meets the condition of starting measurement, the terminal equipment measures the signal parameters of the adjacent cells. When the signal parameters of the neighboring cell do not satisfy the cell reselection conditions, the second card of the terminal device ends the current process and enters a sleep state. Wherein, T _{tuneAway,SIM（2）} （t2）= t _sync,2 +t _meas,1 ，t _sync,2 For the time of paging monitoring during the t2 period, t _meas,1 The time of the neighbor cell is measured for the t2 period.

Taking T3 time period of discontinuous reception as an example, the second card of the terminal device may be at T _{tuneAway,SIM（2）} And (t 3) carrying out paging monitoring, adjacent cell measurement, base station signaling acquisition and system message acquisition on the cell in the time period. In the process, the second card of the terminal equipment can obtain the information of the serving cell, and if the second card determines that the serving cell meets the condition of starting measurement, the terminal equipment measures the signal parameters of the adjacent cells. When the signal parameter of the adjacent cell meets the cell reselection condition, the second card of the terminal equipment acquires the base station signaling and system of the adjacent cellAnd in the system message, the resident cell of the second card is reselected to be an adjacent cell from the serving cell. And finishing cell reselection, and enabling the second card of the terminal equipment to enter a sleep state. Wherein, T _{tuneAway,SIM（2）} （t3）= t _sync,3 +t _meas,2 +t _signal,1 +t _SIB,1 。t _sync,3 Time of page monitoring during t3 period, t _meas,2 Measuring time of neighbor cell for t3 time period, t _signal,1 Time to acquire signalling, t _SIB,1 Time for acquiring system message SIB.

It is to be understood that the terminal device may perform the above procedure during a discontinuous reception period, wherein the terminal device may initiate the procedure of neighbor cell measurement when the serving cell information in the paging monitoring event satisfies the condition. When the signal parameters of the neighboring cell meet the reselection condition, the terminal device may acquire the base station signaling and SIB message of the neighboring cell, and reselect the resident cell of the second card to the neighboring cell. The embodiment of the application exemplarily provides a scene executable by the second card of the terminal device in the time periods t1, t2 and t 3. Any scenario of t1, t2, or t3 may occur in one DRX cycle, which is not limited in the embodiment of the present application.

It can be seen that the second adjustment time may include a sum of the above-mentioned multiple paging monitoring events, neighbor cell measurement events, base station signaling acquisition events and SIB message acquisition events, and the second adjustment time within a period of time t satisfies the following formula (1):

wherein N is _sync The number of times a paging monitoring event is performed for the second card within time t; n is a radical of _meas The number of times that the second card measures the adjacent cell within the time t; n is a radical of _signal Acquiring the number of times of base station signaling for a second card within time t; n is a radical of hydrogen _SIB The number of times the SIB message is acquired for the second card within time t. t is t _sync,i Time taken to perform an ith paging monitoring event for the terminal device; t is t _meas,i Time taken for the terminal device to perform the ith neighbor cell measurement event;t _signal,i acquiring the time used for the terminal equipment to execute the ith base station signaling event; t is t _SIB,i And executing the time for acquiring the SIB message event for the terminal equipment at the ith time.

It is understood that, within the time t, if the second card of the terminal device does not execute the corresponding event, the number N of the corresponding event may be set to 0. For example, if the terminal device does not execute the scenario of t3 during time t, then N _signal And N _SIB Are all 0.

As can be seen from equation (1), the amount of data receivable by the first card of the terminal device during time t satisfies the following equation:

where R is downlink data throughput (bits/second), and when R is a variable that can be predetermined by the terminal device, the amount of data received by the first card can be determined by the second adjustment time. Therefore, the number and time of the second card executing the paging monitoring event, the neighbor cell measurement time, the base station signaling acquisition time, and the SIB message acquisition event in the terminal device may affect the amount of data received by the first card.

It can be understood that the terminal device can control the time that the second card occupies the radio frequency channel through the second adjustment time. When the second adjustment time is reduced, the first adjustment time is increased, and the radio frequency channel time that the first card of the terminal equipment can occupy is increased, so that the efficiency of the first card in executing the data service is improved.

The second card of the terminal device may control the second adjustment time, and for example, the method for controlling the time for reducing the radio frequency channel occupied by the second card in step S702 will be described in detail with reference to fig. 9 to 11.

Fig. 9 is a schematic flowchart illustrating a method for cell reselection according to an embodiment of the present application. As shown in fig. 9:

s901, determining starting measurement conditions according to the relation between carrier frequencies or communication systems of adjacent cells and serving cells; the start-up measurement condition is related to a measurement threshold value of a terminal device neighboring cell.

The terminal device can obtain system messages of the adjacent cell and the service cell, and the system messages can include carrier frequencies and communication systems of the adjacent cell and the service cell. If the adjacent cell and the serving cell are in the same carrier frequency, the adjacent cell and the serving cell can be the same-frequency cell; if the adjacent cell and the service cell are in different carrier frequencies, the adjacent cell and the service cell can be different frequency cells; if the communication systems of the adjacent cell and the serving cell are different, the adjacent cell and the serving cell can be inter-system cells. The relationship between the adjacent cells and the carrier frequency or communication system of the serving cell can be a co-frequency cell, a different-frequency cell and a different-system cell.

It should be noted that the inter-system may be understood as two cells in different communication systems. The communication system may be 2G, 3G, 4G, 5G, 6G network, etc., and the cells are in different systems under different network systems, for example: china mobile supports global system for mobile communications (GSM) under 2G network, and time-division-code division multiple access (TD-CDMA) under 3G network; china Unicom supports GSM under a 2G network and wideband code division multiple access (W-CDMA) under a 3G network; china telecommunications supports Code Division Multiple Access (CDMA) in a 2G network and CDMA2000 in a 3G network, which is not listed in the embodiments of the present application.

The terminal equipment can make different starting measurement conditions according to different relations, and the starting measurement conditions are related to the measurement threshold values of the adjacent cells of the terminal equipment. It should be noted that the process of completing the reselection by the cell may include two events: a measurement event and a cell reselection event are initiated. The measurement event is started by the terminal equipment to detect the signal parameters of the serving cell, and if the signal parameters are lower than the measurement threshold value, the terminal equipment can start to measure the signal parameters of a plurality of adjacent cells. The cell reselection event is that on the basis of starting the measurement event, if the signal parameter of the neighboring cell is better than that of the serving cell, the terminal device sets the resident cell as the neighboring cell. The measurement threshold value is associated with initiating a measurement event.

S902, when the signal parameter of the service cell meets the starting measurement condition, the terminal device measures the signal parameter of the adjacent cell.

The terminal equipment can periodically measure the signal parameters of the serving cell in a DRX period and receive a system message sent by a base station of the serving cell. The terminal device may determine whether the signal parameters of the serving cell satisfy the measurement starting conditions set in step S901. If the starting measurement condition is met, the terminal equipment can measure the signal parameters of the adjacent cells.

It can be understood that, if the signal parameter of the serving cell does not satisfy the starting measurement condition, the signal quality of the current camped cell is good, and the terminal device does not need to perform cell reselection to improve the signal quality of the camped cell. The second card of the terminal device may end the page monitoring event and enter a sleep state during the current DRX period. And after the next DRX period, the terminal equipment judges whether the signal parameters of the serving cell meet the starting measurement conditions again. Therefore, when the cell reselection is not needed, the terminal equipment does not measure the signal parameters of the adjacent cell, so that the time that the second card occupies a radio frequency channel is saved.

And S903, when the signal parameter of the adjacent cell meets the cell reselection condition, reselecting the second card of the terminal equipment to the adjacent cell from the serving cell.

The cell reselection condition is related to a reselection threshold value for cell reselection by the second card of the terminal device. When the terminal device obtains the signal parameters of the adjacent cell, the terminal device can judge whether the signal parameters of the adjacent cell meet the cell reselection conditions. And if the cell reselection condition is met, the terminal equipment reselects from the serving cell to the adjacent cell.

Optionally, the terminal device may further determine a cell reselection condition according to the priority of the serving cell and the priority of the neighboring cell.

The system message may further include a priority of the serving cell and a priority of the neighboring cell, and the priority relationship of the cells may be a high priority, a same priority, and a low priority. And the terminal equipment can also set a cell reselection condition according to the priority relation.

According to the cell reselection method provided by the embodiment of the application, the starting measurement condition is determined according to the relation between the carrier frequency or the communication system of the adjacent cell and the serving cell; when the signal parameters of the serving cell meet the starting measurement conditions, the terminal equipment measures the signal parameters of the adjacent cells; and when the signal parameters of the adjacent cells meet the cell reselection conditions, reselecting the second card of the terminal equipment to the adjacent cells from the serving cell. In this way, the terminal device can perform cell reselection based on the set starting measurement condition and the cell reselection condition to select a cell suitable for residing as a serving cell, thereby controlling the time that the second card occupies the radio frequency channel.

Further, the present application provides a method for setting a measurement initiating condition and a cell reselection condition, which is described below with reference to fig. 10 and fig. 11.

Fig. 10 is a schematic flowchart of a method for cell reselection according to an embodiment of the present application, where a flow of determining a measurement starting condition is shown in fig. 10:

in a possible implementation manner, when the neighboring cell and the serving cell are co-frequency cells, the terminal device determines the start-up measurement condition according to the first start-up measurement threshold.

The terminal device may obtain a first start measurement threshold value from the system message, and the first start measurement threshold value may be used to indicate a start measurement threshold of a co-frequency cell. For example, the first starting measurement threshold value may be obtained from intra Freq Cell Reselection Info field of SIB 2. The first start measurement threshold may be S _Intrasearch . The first start-up measurement threshold value is related to start-up measurement conditions of co-frequency cells.

For example, in the embodiment of the present application, on the basis that the start measurement condition is limited by the first start measurement threshold value, the start measurement condition may be further limited according to a network resource requirement for the first card to execute the service data, so as to improve a limiting effect of the start measurement threshold value on the start measurement process.

The embodiment of the present application provides a method for setting a starting measurement condition when co-frequency cells are configured, as described in steps S1001 to S1003:

s1001, acquiring the service type of the data service.

The data traffic is the traffic executed by the terminal device based on the first card, and the data traffic can be divided into GBR traffic and Non-GBR traffic according to the bit rate required by the bearer, wherein, under the condition of network resource shortage, the GBR traffic can still ensure the bit rate, and the bit rate borne by the Non-GBR traffic is reduced. The terminal device may obtain a service type of the data service executed by the first card to determine a degree of a requirement of the data service of the first card for a network resource.

S1002, if the service type is GBR service, the terminal device sets the first starting measurement condition as a starting measurement condition.

The first starting measurement condition is a starting measurement condition when the first card of the terminal equipment executes the GBR service and the service cell and the adjacent cell of the second card are the same-frequency cells. First start-up measurement condition and first start-up measurement threshold value S _Intrasearch The hysteresis value N of the GBR traffic. For the GBR service with higher delay requirement, the terminal device may set the first start measurement condition as the start measurement condition.

Illustratively, if the terminal device measures the signal parameter S of the serving cell _S And if the first starting measurement condition is met, the terminal equipment can start measurement of the adjacent cell. The first start-up measurement condition may satisfy the following formula (3):

among them, thresh _X For the cell reselection threshold value, this value may be taken as a boundary value where the signal parameter satisfies the first start-up measurement condition, where X is the frequency. It can be appreciated that the priority of the neighbor cell with the serving cell can affect Thresh _X Thresh when the neighbor cell priority is higher than the serving cell _X Can be Thresh _X,High ，Thresh _X,High Can be Thresh _X,HighP And Thresh _X,HighQ . Wherein P can be related to signal strengthOff, Q may be related to signal quality. Thresh when neighbor cell priority is lower than serving cell _X Can be Thresh _X,Low ，Thresh _X,Low Can be Thresh _X,LowP And Thresh _X,LowQ 。

Optionally, the signal parameter S _S Is S _rxlev,s Then, the first start-up measurement condition satisfies the following formula (4):

wherein S is _IntrasearchP Is S _rxlev,s A corresponding first starting measurement threshold value; thresh _X,HighP Is S _rxlev,s Corresponding boundary values.

Optionally, the signal parameter S _S Is S _qual,s Then, the first start-up measurement condition satisfies the following formula (5):

wherein S is _IntrasearchQ Is S _qual,s A corresponding first starting measurement threshold value; thresh _X,HighQ Is S _qual,s Corresponding boundary values.

It can be understood that the signal parameter S acquired by the terminal device _S May include S _rxlev,s And S _qual,s When the signal parameter S is one or more of _S Any value of the first starting measurement condition is satisfied, and the terminal equipment can start measurement on the adjacent cell.

And S1003, if not, the terminal equipment sets the second starting measurement condition as the starting measurement condition.

The second starting measurement condition is a starting measurement condition when the first card of the terminal device executes Non-GBR service and the serving cell and the adjacent cell of the second card are co-frequency cells. First start-up measurement condition and first start-up measurement threshold value S _Intrasearch And the number N of ping-pong reselection of the cell _pp It is related. Do not require delayFor high Non-GBR traffic, the terminal device may set the second start measurement condition as the start measurement condition.

Illustratively, if the terminal device measures the signal parameter S of the serving cell _S And if the second starting measurement condition is met, the terminal equipment can start measurement of the adjacent cell. The second start-up measurement condition may satisfy the following equation (6):

among them, thresh _X,High For the cell reselection threshold value, this value may be used here as a boundary value for the signal parameter satisfying the second starting measurement condition.

Optionally, the signal parameter S _S Is S _rxle,s Then, the second start measurement condition satisfies the following formula (7):

optionally, the signal parameter S _S Is S _qual,s Then, the second start measurement condition satisfies the following formula (8):

in another possible implementation manner, when the neighboring cell and the serving cell are inter-frequency cells or inter-system cells, the terminal device determines the start-up measurement condition according to the second start-up measurement threshold.

The terminal device may obtain a second start measurement threshold value from the system message, where the second start measurement threshold value is used to indicate start measurement thresholds of the inter-frequency cell and the inter-system cell. For example, the second starting measurement threshold value can be obtained from the cell Reselection Serving Freq Info field of SIB 2. The second start measurement threshold may be S _{nonIntrasearch} . The second start-up measurement threshold value is associated with start-up measurement conditions of the inter-frequency cell and the inter-system cell.

For example, the embodiment of the present application may further limit the start measurement condition according to a network resource requirement of the first card for executing the service data, on the basis that the second start measurement threshold value limits the start measurement condition.

The embodiment of the present application provides a method for setting a measurement starting condition when a serving cell and an adjacent cell are a pilot frequency cell and a inter-system cell, as described in steps S1004 to S1006:

s1004, acquiring the service type of the data service.

Similar to step S1001, the detailed description is omitted here.

S1005, if the service type is the GBR service, the terminal device sets the third start measurement condition as the start measurement condition.

The third starting measurement condition is the starting measurement condition when the first card of the terminal equipment executes the GBR service and the service cell and the adjacent cell of the second card are the pilot frequency cell and the inter-system cell. Third start-up measurement condition and first start-up measurement threshold value

The hysteresis value N of the GBR traffic. For the GBR traffic with high delay requirement, the terminal device may set the third starting measurement condition as the starting measurement condition.

Illustratively, if the terminal device measures the signal parameter S of the serving cell _S And if the third starting measurement condition is met, the terminal equipment can start measurement of the adjacent cell. The third start-up measurement condition may satisfy the following formula (9):

optionally, the signal parameter S _S Is S _rxlev,s Then, the third start measurement condition satisfies the following formula (10):

wherein S is _{nonIntrasearchP} Is S _rxlev,s A corresponding second start measurement threshold value; thresh _X,HighP Is S _rxlev,s Corresponding boundary values.

Optionally, the signal parameter S _S Is S _qual,s Then, the third start measurement condition satisfies the following formula (11):

wherein S is _{nonIntrasearchQ} Is S _qual,s A corresponding second start measurement threshold value; thresh _X,HighQ Is S _qual,s Corresponding boundary values.

S1006, if not, the terminal device sets the fourth start measurement condition as the start measurement condition.

The fourth starting measurement condition is the starting measurement condition when the first card of the terminal equipment executes Non-GBR service and the service cell and the adjacent cell of the second card are different frequency cell and different system cell. Fourth start-up measurement condition and second start-up measurement threshold value S _{nonIntrasearch} Cell ping-pong reselection times N _pp It is related. For Non-GBR traffic with low latency requirement, the terminal device may set the fourth start measurement condition as the start measurement condition.

Illustratively, if the terminal device measures the signal parameter S of the serving cell _S If the fourth starting measurement condition is satisfied, the terminal device may start measurement of the neighboring cell. The fourth start-up measurement condition may satisfy the following equation (12):

among them, thresh _X,High For the cell reselection threshold value, this value may be taken as a boundary value at which the signal parameter satisfies the fourth starting measurement condition.

Optionally, the signal parameter S _S Is S _rxlev,s Then, the fourth starts measuringThe condition satisfies the following formula (13):

optionally, the signal parameter S _S Is S _qual,s Then, the fourth start measurement condition satisfies the following formula (14):

the embodiment of the application provides four starting measurement conditions, and the terminal equipment can determine the corresponding starting measurement conditions in corresponding scenes. It is understood that the first start-up measurement condition, the second start-up measurement condition, the third start-up measurement condition, and the fourth start-up measurement condition may correspond to equation (3), equation (6), equation (9), and equation (12). Steps S1001 to S1006 provided in the embodiment of the present application only exemplarily describe the above four scenarios, in a specific embodiment, steps S1002, S1003, S1005, and S1006 may not have a precedence relationship, and the terminal device may determine the starting measurement condition according to the relationship between the serving cell and the neighboring cell and the service type, and select any corresponding condition of the first to fourth starting measurement conditions as the starting measurement condition.

It should be noted that, in a possible implementation, the terminal device often starts the measurement threshold S _Intrasearch And S _{nonIntrasearch} Conditions for initiating measurements of neighboring cells are limited. In the embodiment of the present application, for the GBR service sensitive to delay, according to the formula (3) and the formula (9), the start measurement condition and the difference (S) between the start measurement threshold and the GBR service hysteresis value are known _Intrasearch -N or S _{nonIntrasearch} N), the second card of the terminal device may lower the threshold value for initiating the measurement condition based on the parameter N. Signal parameter S of serving cell when threshold value for starting measurement condition is lowered _S Need to achieve a ratio S _Intrasearch And S _{nonIntrasearch} Low value, the second card of the terminal device can satisfy the start-up measurementAnd (4) condition. Therefore, the measurement starting condition is improved through the parameter N, the probability of starting measurement in cell reselection is reduced, the occurrence of adjacent cell measurement events, base station signaling acquisition events and SIB message acquisition events is reduced, the second adjustment time is reduced, the time for the first card to occupy a radio frequency channel is further improved, and the throughput of the first card in executing data services is improved.

In the embodiment of the present application, for Non-GBR service insensitive to delay, it can be known from formula (6) and formula (12) that the measurement starting condition, the measurement starting threshold, and the cell ping-pong reselection time N are set _pp Is dependent on the difference, the second card of the terminal device may be based on the parameter N _pp The threshold value for initiating the measurement condition is lowered. Similar to the principle of performing GBR service, the embodiments of the present application are not described herein again.

The measurement starting process in the method for cell reselection provided in the embodiment of the present application is described above with reference to fig. 10, and the cell reselection process in the method for cell reselection is described below with reference to fig. 11.

The terminal device may determine the cell reselection condition according to the priority of the serving cell and the priority of the neighboring cell.

In a possible implementation manner, S1101, when the priority of the neighboring cell is higher than or equal to the priority of the serving cell, the terminal device sets the first cell reselection condition as the cell reselection condition; first cell reselection condition, cell reselection threshold value and ping-pong reselection times of second card

It is relevant.

Illustratively, if the terminal device measures the signal parameter S of the adjacent cell _N And if the first cell reselection condition is met, the terminal equipment can reselect the adjacent cell. The first cell reselection condition may satisfy the following formula (15):

among them, thresh _X,High When the priority of the adjacent cell is higher than that of the service cell, the cell reselection threshold value of the adjacent cell is reselected.

Optionally, if the system message does not include the threshServingLowQ parameter, the signal parameter S _n Is S _rxlev,n The first start-up measurement condition may satisfy the following formula (16):

among them, thresh _X,HighP S for neighboring cell as high priority cell _rxlev,n Corresponding reselection threshold value.

Optionally, if the system message includes threshServingLowQ parameter, signal parameter S _n Is S _qual,n The first start-up measurement condition may satisfy the following formula (17):

among them, thresh _X,HighQ S for neighboring cell as high priority cell _qual,n Corresponding reselection threshold value.

In the embodiment of the present application, when reselecting an adjacent cell with a high priority or the same priority, it can be known from formula 15 that the first cell reselection condition and the number N of ping-pong reselections of the cell are _pp In relation to, as the number of ping-pong reselections increases, S _n The value to be met is increased, the first cell reselection condition is improved, the probability of cell reselection executed by the terminal equipment is reduced, ping-pong reselection of the second card of the terminal equipment is inhibited, the second adjustment time is reduced, the time of the first card occupying a radio frequency channel is further improved, and the throughput of the first card executing data service is improved.

In another possible implementation manner, in step S1102, when the priority of the neighboring cell is lower than the priority of the serving cell, the terminal device sets the second cell reselection condition as the cell reselection condition; the second cell reselection condition is related to a cell reselection threshold value.

Illustratively, if the terminal device measures the signal parameter S of the neighboring cell _N And if the second cell reselection condition is met, the terminal equipment can reselect the adjacent cell. The second cell reselection condition may satisfy the following formula (18):

wherein, thresh _Serving,Low When the priority of the adjacent cell is lower than that of the service cell, S _S Corresponding cell reselection threshold values.

Optionally, if the system message does not include the threshServinLowQ parameter, the signal parameter S _n Is S _rxlev,n The second start-up measurement condition may satisfy the following formula (19):

among them, thresh _Serving,LowP When the priority of the adjacent cell is lower than that of the service cell, S _rxlev,s A corresponding reselection threshold value; thresh _X,LowP When the priority of the adjacent cell is lower than that of the service cell, S _rxlev,n Corresponding cell reselection threshold value

Optionally, if the system message includes threshServingLowQ parameter, signal parameter S _n Is S _qual,n The second start-up measurement condition may satisfy the following formula (20):

wherein, thresh _Serving,LowQ When the priority of the adjacent cell is lower than that of the service cell, S _qual,s A corresponding reselection threshold; thresh _X,LowQ When the priority of the adjacent cell is lower than that of the service cell, S _qual,n Corresponding reselection threshold value.

It can be understood that the condition for reselecting the camped cell from the high-priority cell to the low-priority cell is harsh, and the first cell reselection condition may not ensure that the signal of the low-priority cell is better than the serving cell, so when the second card of the terminal device is reselected from the serving cell to the neighboring cell with low priority, it is determined whether to reselect the neighboring cell according to the second cell reselection condition.

Optionally, the cell reselection condition further includes a time when the terminal device resides in the serving cell. For example, duration T _{reselectionRAT} The time is always enough for the UE to camp on the current serving cell for more than 1 second.

According to the cell reselection method provided by the embodiment of the application, when the adjacent cells are the high priority cell and the cell with the same priority, the terminal device sets the first cell reselection condition as the cell reselection condition; when the adjacent cell is a low-priority cell, the terminal device sets the second cell reselection condition as a cell reselection condition. Therefore, through the first cell reselection condition and/or the second cell reselection condition, the probability of cell reselection can be reduced by the second card of the terminal device, the occurrence of events of acquiring base station signaling and acquiring SIB messages is reduced, the second adjustment time is reduced, the time of the first card occupying a radio frequency channel is further prolonged, and the throughput of the first card executing data services is increased.

Fig. 12 is a schematic flowchart illustrating a method for cell reselection according to an embodiment of the present application, and details of the methods illustrated in fig. 10 and fig. 11 are described below with reference to fig. 12. As shown in fig. 12:

s1201, the terminal device executes the data service based on the first card.

And S1202, cell ping-pong reselection occurs to the second card of the terminal equipment.

Wherein N is _pp The method for cell reselection of the embodiment of the application can be started by the terminal equipment when the terminal equipment is not lower than 1 and executes the data service based on the first card; n is a radical of hydrogen _pp If the number is less than 1 or the terminal device does not execute the data service based on the first card, the terminal device may perform steps S601-S603The method of (4) may be implemented for cell reselection. The standard schemes in S601 to S603 are not described in too much in the embodiments of the present application.

S1203, the terminal device determines the relationship between the carrier frequencies or communication systems of the adjacent cells and the serving cell.

The adjacent cells and the service cell can be a same-frequency cell, a different-frequency cell and a different-system cell.

In some embodiments, S1204, if the adjacent cell is an intra-frequency cell, the terminal device determines a service type of the data service.

The terminal device executes the data service based on the first card, and the terminal device can determine the service type of the data service, wherein the service type comprises GBR service and Non-GBR service.

Optionally, S1205, if the service type is the GBR service, the terminal device measures the signal parameter of the neighboring cell when the signal parameter of the serving cell meets the first measurement starting condition.

The first start measurement condition satisfies formula (3). The terminal equipment can obtain the system information to obtain the parameters in the formula (3), the formula (4) and the formula (5). For example, the start-up measurement parameters may be as shown in table 1:

when the terminal device executes the data service based on the first card, parameters such as a service type and a hysteresis value of the data service can be acquired. The terminal device determines whether the signal parameters of the serving cell satisfy the first starting measurement condition based on the parameters, and if so, performs step S1210.

Optionally, S1206, if the service type is Non-GBR service, the terminal device measures the signal parameter of the neighboring cell when the signal parameter of the serving cell meets the second starting measurement condition.

The second starting measurement condition satisfies equation (6). Besides the parameters in table 1, the terminal device may also record the number of ping-pong reselections occurring in the cell. The terminal device determines whether the signal parameters of the serving cell satisfy the second start measurement condition based on the parameters, and if so, performs step S1210.

In some embodiments, S1207, if the neighboring cell is an inter-frequency cell and/or an inter-system cell, the terminal device determines a service type of the data service.

Optionally, in S1208, if the service type is the GBR service, the terminal device measures the signal parameter of the neighboring cell when the signal parameter of the serving cell meets the third starting measurement condition.

The third starting measurement condition satisfies equation (9). The terminal device determines whether the signal parameters of the serving cell satisfy the second start measurement condition, and if so, performs step S1210.

Optionally, S1209, if the service type is Non-GBR service, the terminal device measures the signal parameter of the neighboring cell when the signal parameter of the serving cell meets the fourth starting measurement condition.

The fourth start measurement condition satisfies formula (12). The terminal device determines whether the signal parameters of the serving cell satisfy the fourth starting measurement condition, and if so, performs step S1210.

S1210, the terminal device obtains the priority of the adjacent cell and the priority of the service cell.

And the terminal equipment determines that the adjacent cell is a high-priority cell, a same-priority cell or a low-priority cell according to the priority of the adjacent cell and the priority of the service cell.

Optionally, in S1211, if the neighboring cell is a high priority cell or a cell with the same priority, the terminal device performs cell reselection according to the first cell reselection condition.

When the neighboring cell is a high priority cell or a same priority cell, the first cell reselection condition may be formula (15). The terminal equipment can obtain the system information to obtain the parameters in the formula (15), the formula (16) and the formula (17). For example, the cell reselection parameters may be as shown in table 2:

the terminal device determines whether the signal parameters of the neighboring cells satisfy the first cell reselection condition based on the parameters, and if so, executes step S1213.

Optionally, in S1212, if the neighboring cell is a low-priority cell, the terminal device performs cell reselection according to the second cell reselection condition.

The second cell reselection condition may be formula (18) when the neighboring cell is a low priority cell. The terminal device determines whether the signal parameters of the neighboring cell satisfy the second cell reselection condition based on the parameters, and if so, executes step S1213.

S1213, the resident cell of the second card of the terminal equipment is reselected to the adjacent cell from the serving cell.

According to the cell reselection method provided by the embodiment of the application, when the signal parameters of the serving cell meet the starting measurement conditions, the signal parameters of the adjacent cells are measured; and when the signal parameters of the adjacent cells meet the cell reselection conditions, the serving cell reselects the adjacent cells. Based on the starting measurement condition and the cell reselection condition, the probability of cell reselection by the second card of the terminal equipment is reduced, and the cell ping-pong reselection is inhibited, so that the time of the first card occupying a radio frequency channel is prolonged, and the throughput of the first card executing data service is improved.

Optionally, the terminal device may detect a ping-pong condition of the second card according to the log.

The terminal equipment acquires a log, and the log can record the times of cell ping-pong reselection of the second card. The terminal device may determine, according to the log, a ping-pong situation of the second card after executing the cell reselection method according to the embodiment of the present application.

The method for cell reselection provided by the embodiment of the present application is described above with reference to fig. 1 to 12, and the following describes a related apparatus for performing the method provided by the embodiment of the present application. Those skilled in the art will appreciate that the methods and apparatuses may be combined and referred to one another, and that the electronic device provided in the embodiments of the present application may perform the steps of the call setup method described above.

As shown in fig. 13, fig. 13 is a schematic structural diagram of a cell reselection apparatus provided in this embodiment, where the cell reselection apparatus 130 may include a terminal device in this embodiment, and may also include a chip or a chip system in the terminal device. The device comprises: memory 1301 and a processor 1302. The processor 1302 is configured to support the step of information processing in the method for performing cell reselection by the terminal device, and the memory 1301 is configured to store computer-executable instructions, and is controlled by the processor 1302 to perform the method for performing cell reselection provided in the following embodiments of the present application.

For example, the apparatus 130 for cell reselection provided in the embodiment of the present application is provided with a first card and a second card, where the first card and the second card share a radio frequency channel, where the processor 1302 is configured to perform a data service based on the first card; and in the process of executing the data service by the first card, if the second card performs cell ping-pong reselection, controlling and reducing the time of the second card occupying the radio frequency channel according to the signal parameter of the serving cell and the signal parameter of the adjacent cell; the serving cell is a cell where the second card resides, and the neighboring cell is a cell adjacent to the serving cell.

In a possible implementation manner, the processor 1302 is specifically configured to determine a measurement starting condition according to a relationship between carrier frequencies or communication systems of the neighboring cell and the serving cell; initiating a measurement condition related to a measurement threshold value of a neighboring cell; when the signal parameter of the service cell meets the starting measurement condition, measuring the signal parameter of the adjacent cell; when the signal parameters of the adjacent cells meet the cell reselection conditions, the second card is reselected to the adjacent cells from the serving cell; the cell reselection condition is related to a reselection threshold for the second card to perform cell reselection.

In a possible implementation manner, the processor 1302 is specifically configured to determine a measurement starting condition according to a first measurement starting threshold value when an adjacent cell and a serving cell are intra-frequency cells; the same-frequency cells are the cells with the same carrier frequency; the first starting measurement threshold value is related to the starting measurement condition of the co-frequency cell; or, when the adjacent cell and the serving cell are the pilot frequency cell and the inter-system cell, determining the starting measurement condition according to the second starting measurement threshold value; the different-frequency cell is a cell with different carrier frequencies, and the different-system cell is a cell with different communication systems; the second start-up measurement threshold value is associated with start-up measurement conditions of the inter-frequency cell and the inter-system cell.

S _S as signal parameters of the serving cell, S _Intrasearch For the first start of the measurement threshold, thresh _X,High When the priority of the adjacent cell is higher than that of the service cell, the cell reselection threshold value of the adjacent cell is reselected.

。

in a possible implementation manner, the processor 1302 is configured to determine a measurement starting condition according to the second measurement threshold, and specifically includes:

acquiring the service type of the data service; the service types comprise guaranteed bit rate GBR service and Non-guaranteed bit rate Non-GBR service; if the service type is GBR service, setting the third starting measurement condition as a starting measurement condition; the third starting measurement condition is related to a hysteresis value N of the GBR service and a second measurement threshold value; otherwise, setting the fourth starting measurement condition as the starting measurement condition; fourth starting measurement condition and ping-pong reselection times N of second card _pp And a second measurement threshold value.

S _{nonIntrasearch} for the second start-upA threshold value is measured.

。

in a possible implementation, the processor 1302 is further configured to determine a cell reselection condition according to the priority of the serving cell and the priority of the neighboring cell.

In a possible implementation manner, the processor 1302 is configured to determine a cell reselection condition according to a priority of a serving cell and a priority of a neighboring cell, and specifically includes:

S _n is a signal parameter of a neighboring cell.

Thresh _Serving,Low when the priority of the adjacent cell is lower than that of the service cell, S _S A corresponding cell reselection threshold value; thresh _X,Low Reselecting a phase when the priority of the adjacent cell is lower than that of the service cellCell reselection threshold of the neighbor cell.

In one possible implementation, the apparatus 130 for cell reselection may further include an interface circuit 1303 and a display 1304. The interface circuit 1303 is used for performing a step of data reception or transmission in the cell reselection method; display 1304 is used to perform steps shown in methods associated with cell reselection; the memory 1301, the processor 1302, the interface circuit 1303, and the display 1304 are connected by lines.

Optionally, the memory 1301 may include one or more memories, which may be devices in one or more devices or circuits for storing programs or data.

The memory 1301 may be separate and coupled to the processor 1302 of the cell reselection device via a communication link. The memory 1301 may be integrated with the processor 1302.

The memory 1301 may store computer-executable instructions for methods in the terminal device to cause the processor 1302 to perform the methods in the embodiments described above.

The memory 1301 may be a register, cache, RAM, or the like, and the memory 1301 may be integrated with the processor 1302. Memory 1301 may be a read-only memory (ROM) or other type of static storage device that may store static information and instructions, and memory 1301 may be separate from processor 1302.

In a possible implementation manner, the computer execution instructions in the embodiment of the present application may also be referred to as application program codes, which is not specifically limited in the embodiment of the present application.

Optionally, the interface circuit 1303 may further include a transmitter and/or a receiver. The interface circuit 1303 of the cell reselection apparatus 130 may be used to interact with a base station to implement the cell reselection method according to the embodiment of the present disclosure. For example, the interface circuit 1303 may obtain system messages from a base station, etc.

Optionally, the processor 1302 may include one or more CPUs, and may also be other general purpose processors, digital Signal Processors (DSPs), application Specific Integrated Circuits (ASICs), and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the present application may be embodied directly in a hardware processor, or in a combination of the hardware and software modules in the processor.

The embodiment of the application also provides a computer readable storage medium. The methods described in the above embodiments may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. If implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media may include both computer storage media and communication media, and may include any medium that can transfer a computer program from one place to another. A storage medium may be any target medium that can be accessed by a computer.

In one possible implementation, a computer-readable medium may include RAM, ROM, a compact disk-read-only memory (CD-ROM) or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. Also, any connection is properly termed a computer-readable medium. For example, if the software is transmitted from a website, server, or other remote source using a coaxial cable, fiber optic cable, twisted pair, digital Subscriber Line (DSL), or wireless technologies such as infrared, radio, and microwave, then the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of medium. Disk and Disc, as used herein, includes optical Disc, laser Disc, optical Disc, digital Versatile Disc (DVD), floppy disk and blu-ray Disc where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above should also be included within the scope of computer-readable media.

Embodiments of the present application are described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processing unit of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processing unit of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

The above embodiments are only for illustrating the embodiments of the present invention and are not to be construed as limiting the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made on the basis of the embodiments of the present invention shall be included in the scope of the present invention.

Claims

1. A method for reselecting a cell is characterized in that the method is applied to terminal equipment, the terminal equipment is provided with a first card and a second card, and the first card and the second card share a radio frequency channel; the method comprises the following steps:

performing a data service based on the first card;

in the process of executing the data service by the first card, if cell ping-pong reselection occurs to the second card and when a serving cell and an adjacent cell are the same-frequency cells, the terminal equipment acquires the service type of the data service; the service types comprise guaranteed bit rate GBR service and Non-guaranteed bit rate Non-GBR service;

if the service type is the GBR service, the terminal equipment sets a first starting measurement condition as a starting measurement condition; otherwise, the terminal equipment sets the second starting measurement condition as the starting measurement stripA member; wherein the first start measurement condition relates to a hysteresis value N of the GBR traffic and a first start measurement threshold value; the first starting measurement threshold value is related to the starting measurement condition of the co-frequency cell; the second starting measurement condition and the number N of ping-pong reselection occurring to the second card _pp Relative to the first start measurement threshold value; the starting measurement condition is related to a measurement threshold value of a cell adjacent to the terminal equipment; the serving cell is a cell where the second card resides, the adjacent cell is a cell adjacent to the serving cell, and the co-frequency cells are cells with the same carrier frequency;

when the signal parameter of the serving cell meets the measurement starting condition, the terminal equipment measures the signal parameter of the adjacent cell;

when the signal parameters of the adjacent cells meet cell reselection conditions, the second card of the terminal equipment is reselected to the adjacent cells from the serving cell; the cell reselection condition is related to a reselection threshold value for cell reselection by a second card of the terminal device.

2. The method of claim 1, further comprising:

when the adjacent cell and the service cell are the pilot frequency cell and the inter-system cell, the terminal equipment determines a starting measurement condition according to a second starting measurement threshold value; the different-frequency cells are cells with different carrier frequencies, and the different-system cells are cells with different communication systems; the second start measurement threshold value is related to start measurement conditions of the inter-frequency cell and the inter-system cell.

3. The method of claim 1, wherein the first start-up measurement condition satisfies the following equation:

S _S as a signal parameter, S, of the serving cell _Intrasearch For said first start-up measurement threshold value, thresh _X,High Reselecting to the cell reselection threshold value of the neighboring cell when the priority of the neighboring cell is higher than that of the serving cell.

4. The method of claim 3, wherein the second start-up measurement condition satisfies the following equation:

。

5. the method of claim 2, wherein determining the initiating measurement condition based on the second measurement threshold value comprises:

acquiring the service type of the data service; the service types comprise guaranteed bit rate GBR service and Non-guaranteed bit rate Non-GBR service;

if the service type is the GBR service, the terminal equipment sets a third starting measurement condition as the starting measurement condition; the third starting measurement condition is related to a hysteresis value N of the GBR traffic and the second measurement threshold value;

otherwise, the terminal equipment sets a fourth starting measurement condition as the starting measurement condition; the fourth starting measurement condition and the ping-pong reselection frequency N of the second card _pp And said second measurement threshold value.

6. The method of claim 5, wherein the third start-up measurement condition satisfies the following equation:

S _{nonIntrasearch} a measurement threshold value is initiated for the second.

7. The method of claim 6, wherein the fourth starting measurement condition satisfies the following equation:

。

8. the method of claim 1, further comprising:

and determining the cell reselection condition according to the priority of the serving cell and the priority of the adjacent cell.

9. The method of claim 8, wherein determining the cell reselection condition based on the priority of the serving cell and the priority of the neighboring cell comprises:

when the priority of the adjacent cell is higher than or equal to the priority of the serving cell, the terminal equipment sets a first cell reselection condition as the cell reselection condition; the first cell reselection condition, the cell reselection threshold value and the ping-pong reselection frequency N of the second card _pp (ii) related;

or, when the priority of the neighboring cell is lower than the priority of the serving cell, the terminal device sets a second cell reselection condition as the cell reselection condition; the second cell reselection condition is related to a cell reselection threshold value.

10. The method of claim 9, wherein the first cell reselection condition satisfies the following equation:

S _n is a signal parameter of the neighboring cell.

11. The method of claim 10, wherein the second cell reselection condition satisfies the following equation:

Thresh _Serving,Low when the priority of the adjacent cell is lower than that of the service cell, S _S A corresponding cell reselection threshold value; thresh _X,Low Reselecting to the cell reselection threshold value of a neighboring cell when the priority of the neighboring cell is lower than the serving cell.

12. An electronic device, comprising: a processor and a memory, the processor to invoke a program in the memory to cause the electronic device to perform the method of any of claims 1-11.

13. A computer-readable storage medium having instructions stored thereon that, when executed, cause a computer to perform the method of any of claims 1-11.