CN112770374A

CN112770374A - Network registration method and terminal equipment

Info

Publication number: CN112770374A
Application number: CN202110255709.6A
Authority: CN
Inventors: 马志鑫
Original assignee: Fibocom Wireless Inc
Current assignee: Fibocom Wireless Inc
Priority date: 2021-03-09
Filing date: 2021-03-09
Publication date: 2021-05-07
Anticipated expiration: 2041-03-09
Also published as: CN112770374B; WO2022188416A1

Abstract

The embodiment of the application discloses a method for registering a network and terminal equipment. On one hand, before the terminal equipment finishes the network service due to abnormal shutdown, the terminal equipment stores the frequency point of the registered target cell in a historical frequency point list. Therefore, after the terminal equipment is started up next time, the terminal equipment can quickly reside in a target cell through the frequency points in the historical frequency point list, a network can be quickly registered, and the effect of improving user experience is achieved. On the other hand, before storing the frequency point of the target cell in the historical frequency point list, the terminal equipment judges whether the RSRP of the frequency point of the current registered cell is not less than the target threshold value, and only when the RSRP of the frequency point of the current registered cell is not less than the target threshold value, namely the target cell is a cell with better signals, and the frequency point of the target cell is not stored in the historical frequency point list, the operation of storing the frequency point is executed, so that the damage of a memory caused by frequent information storage operation can be avoided.

Description

Network registration method and terminal equipment

Technical Field

The present application relates to the field of computer communications technologies, and in particular, to a method for registering a network and a terminal device.

Background

In recent years, various terminal devices have come into the lives of people, and bring convenience to the lives of people. For example, smart phones have become an essential part of people's life, and people use smart phones to perform network services such as conversation, web browsing, live video and the like. The diversity of network services makes the performance requirements of the communication modules of the terminal devices increasingly high.

The terminal equipment establishes communication connection with network equipment or other terminal equipment through a communication module in the terminal equipment. Many of these terminals are powered by batteries, and in order to allow the batteries to be serviced for a longer period of time, the terminals are usually powered down immediately after the service is completed. When the terminal device is powered on again and uses the network, the terminal device needs to perform full-band scanning to select a cell with a better signal to camp on, which results in a longer time for the terminal device to register in the network.

Disclosure of Invention

The embodiment of the application discloses a method for registering a network and a terminal device, wherein before the terminal device finishes network service due to abnormal shutdown, the terminal device stores frequency points of a registered target cell in a historical frequency point list, so that after the terminal device is started next time, the terminal device can quickly reside in the target cell through the frequency points in the historical frequency point list without executing full-band scanning, the time for registering the terminal device on the network is shortened, and the user experience is improved.

In a first aspect, an embodiment of the present application provides a method for registering a network, where the method includes: registering the target cell according to a historical frequency point list, wherein the historical frequency point list comprises one or more historical frequency points; acquiring Reference Signal Received Power (RSRP) of the target cell; when the RSRP of the target cell is not smaller than a target threshold value, acquiring a frequency point of the target cell; and when the historical frequency point list does not comprise the frequency point of the target cell, storing the frequency point of the target cell into the historical frequency point list.

In the method, on one hand, before the terminal equipment finishes the network service due to abnormal shutdown, the terminal equipment stores the frequency point of the registered target cell in the historical frequency point list. On the other hand, before storing the frequency point of the target cell in the historical frequency point list, the terminal equipment judges whether the RSRP of the frequency point of the current registered cell is not less than the target threshold, and only when the RSRP of the frequency point of the current registered cell is not less than the target threshold, namely when the target cell is a cell with better signals, and the frequency point of the target cell is not stored in the historical frequency point list, the operation of storing the frequency point is executed. Therefore, after the terminal equipment is powered off suddenly and is shut down abnormally, the terminal equipment can be used for the historical frequency point when the terminal equipment is started next time, the network can be quickly registered, the memory cannot be damaged due to frequent information storage operation, and the effect of improving the user experience is achieved.

With reference to the first aspect, in some embodiments, the history frequency point list further includes cell identifiers corresponding to the one or more history frequency points, and registering to a target cell according to the history frequency point list includes: acquiring a cell identifier of a cell to be processed in the historical frequency point list; acquiring information of the cell to be processed according to the cell identifier of the cell to be processed and a historical frequency point corresponding to the cell identifier of the cell to be processed; when the cell to be processed is determined to be a cell which can be registered according to the information of the cell to be processed and an S criterion, determining the cell to be processed to be the target cell; and registering the target cell.

With reference to the first aspect, in some embodiments, the cell identifiers are arranged according to a reverse time order in which the historical frequency points are registered, and the obtaining of the cell identifier of the to-be-processed cell in the historical frequency point list includes: and sequentially acquiring cell identifiers from the historical frequency point list, wherein the cells determined by the acquired cell identifiers are the cells to be processed.

With reference to the first aspect, in some embodiments, the storing the frequency point of the target cell in the historical frequency point list includes: and storing the cell identification of the target cell and the frequency point of the target cell into the historical frequency point list.

With reference to the first aspect, in some embodiments, the registering to the target cell according to the historical frequency point list includes: acquiring historical frequency points to be scanned in the historical frequency point list; scanning the historical frequency points to be scanned to obtain a cell set; determining the registrable cell as the target cell when the cell set comprises registrable cells; and registering the target cell.

With reference to the first aspect, in some embodiments, the acquiring of the historical frequency points to be scanned in the historical frequency point list includes: and sequentially acquiring historical frequency points from the historical frequency point list, wherein the acquired historical frequency points are to-be-scanned historical frequency points.

With reference to the first aspect, in some embodiments, the storing the frequency point of the target cell in the historical frequency point list includes: and storing the RSRP of the target cell and the frequency point of the target cell into the historical frequency point list.

In combination with the first aspect, in some embodiments, the method further comprises: and determining the target threshold as the mean value of the RSRP in the historical frequency point list.

The terminal equipment flexibly sets the target threshold according to the change of the network condition, so that the terminal equipment can flexibly determine whether to store the RSRP of the target cell when the network state changes, and further determine whether to store the frequency point of the target cell. Therefore, the terminal equipment can still store the frequency point of the target cell under the condition of a region with a poor network state, so that the terminal equipment can be quickly registered on the network after being started up under the conditions of abnormal shutdown and the like.

In combination with the first aspect, in some embodiments, the method further comprises: when the terminal equipment receives a service ending instruction, if the historical frequency point list does not include the frequency point of the target cell, storing the frequency point of the target cell in the historical frequency point list, wherein the service ending instruction comprises a shutdown instruction or a flight mode starting instruction; responding to the instruction for ending the service.

In a second aspect, an embodiment of the present application provides a terminal device, including a processor and a memory, where the processor is coupled to the memory through a bus, and the processor is configured to call the instructions stored in the memory to perform: a method of registering a network as described in the first aspect and any possible implementation manner of the first aspect.

In a third aspect, an embodiment of the present application provides a computer storage medium, which includes computer instructions, and when the computer instructions are executed on a terminal device, the terminal device is caused to perform the method for registering a network as described in any one of the first aspect and the possible implementation manner of the first aspect.

In a fourth aspect, an embodiment of the present application provides an apparatus for registering a network, where the apparatus is applied to a terminal device, and the apparatus includes:

the registration unit is used for registering the target cell according to a historical frequency point list, wherein the historical frequency point list comprises one or more historical frequency points;

a first obtaining unit, configured to obtain reference signal received power RSRP of the target cell;

a second obtaining unit, configured to obtain a frequency point of the target cell when RSRP of the target cell is not less than a target threshold;

and the storage unit is used for storing the frequency point of the target cell into the historical frequency point list when the historical frequency point list does not comprise the frequency point of the target cell.

It should be noted that each unit in the above-mentioned apparatus is configured to implement the method according to any one of the first aspect and the first aspect, and the above-mentioned apparatus may further include other units configured to implement the method according to any one of the first aspect and the first aspect, which may specifically refer to relevant descriptions in any one of the first aspect and the first aspect, and is not described herein again.

It is to be understood that the apparatus provided by the second aspect, the computer-readable storage medium provided by the third aspect, and the apparatus provided by the fourth aspect are configured to perform the method provided by any possible implementation manner of the first aspect and the first aspect. Therefore, the beneficial effects achieved by the method can refer to the beneficial effects in the corresponding method, and are not described herein again.

Drawings

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

fig. 2 is a flowchart illustrating a method for registering a network according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of a terminal device according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of an apparatus for registering a network according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a communication module according to an embodiment of the present application.

Detailed Description

The terminology used in the following embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used in the specification of the present application and the appended claims, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the listed items.

Concepts and terms related to the present application are described below.

A cell, also called a cell, refers to an area covered by one or a part of a base station (sector antenna) in a cellular mobile communication system, in which area a terminal device can reliably communicate with the base station via a radio channel.

Public Land Mobile Networks (PLMNs), networks established and operated by governments or operators approved therefor for the purpose of providing land mobile services to the public. The network is typically interconnected with the Public Switched Telephone Network (PSTN) to form a communications network of regional or national scale.

The S criteria, i.e., the received power in the cell search Srxlev >0dB and the received signal quality in the cell search Squal >0 dB.

A Flash memory is a kind of memory device, and is a Non-Volatile (Non-Volatile) memory. In the embodiment of the application, historical frequency points can be stored.

A schematic illustration of a communication system according to an embodiment of the present application is first described below, and as shown in fig. 1, the system may include: terminal device 10, network node 20. Wherein the content of the first and second substances,

the terminal device 10 may specifically be a terminal device including a communication module, the terminal device may specifically be a mobile terminal and/or an intelligent device, the mobile terminal may specifically be at least one of a mobile phone, a tablet computer, a notebook computer, and the like, the intelligent device may specifically be at least one of an intelligent watch, an intelligent bracelet, an intelligent refrigerator, an intelligent sound box, an intelligent washing machine, an intelligent robot, and the like, and the communication module may specifically be any one of a 2G communication module, a 3G communication module, a 4G communication module, a 5G communication module, an NB-IOT communication module, and the like. The terminal device 10 may be stationary or mobile. The terminal device 10 may establish a communication connection with the network node 20 through the communication module.

The network node 20 is a network device, and may establish a communication connection with the terminal device 10 and provide a network service for the terminal device 10. In a specific implementation, the terminal device 10 needs to register with a cell corresponding to the network node 20 and dial successfully, so as to obtain the network service provided by the network node 20. The network node 20 may be an evolved node B in a Long Term Evolution (LTE) system, or a base transceiver station in a time division synchronous code division multiple access (TD-SCDMA) system, and a next generation base station (next generation node B) in a 5G system. The network node 20 may be, among other things, an access point, a transmission node, a central unit or other network entity, and may include some or all of the functionality of the above network entities.

Referring to fig. 2, fig. 2 is a flowchart illustrating a method for registering a network according to the present embodiment. The method may be performed by the terminal device 10 shown in fig. 1 described above, or by a communication module in the terminal device 10. It should be understood that the present embodiment mainly uses the terminal device 10 shown in fig. 1 to execute an example to describe the method for registering a network, as shown in fig. 2, the method may include, but is not limited to, the following steps:

s201, the terminal equipment responds to the received starting instruction and starts.

S202, after the terminal equipment is started, a historical frequency point list is obtained. The historical frequency point list comprises one or more historical frequency points of the terminal equipment registration network. The historical frequency point list is stored in a local memory, and the local memory can be a Flash memory. The historical frequency point is the frequency point of the cell which is registered by the electronic equipment in history. "plurality" means two or more.

It should be understood that a frequency bin is a number for a fixed frequency, and that a frequency bin is used instead of a frequency to indicate the operating frequency of a transceiver. The frequency point of the cell is the number of one working frequency allocated to the cell.

And S203, the terminal equipment registers to the target cell according to the historical frequency point list.

Optionally, the historical frequency point list may include one or more of the historical frequency points, cell identifiers, RSRPs, and the like of the cells that are historically registered, and the historical frequency point, the cell identifier, and the RSRP of one cell that is historically registered correspond to each other. Wherein "plural" means two or more.

The terminal equipment acquires the historical frequency points, cell identifiers and RSRP of the cells which are registered in the history from the historical frequency point list, then determines the cells or cell sets according to the historical frequency points and/or the cell identifiers, and finally judges whether the determined cells or cell sets comprise the cells which can be registered or not through the selection process of the cells which can be registered. And when the cell or the cell set acquired according to the historical frequency point list comprises the cells which can be registered, determining that one cell which can be registered is a target cell and registering the cell to the target cell. And when the cell or the cell set acquired according to the historical frequency point list does not comprise the cell which can be registered, the terminal equipment performs full-band scanning.

Wherein, the cell which can be registered can be used for the terminal device to reside. The selection procedure of the cells that can be registered may be: the method comprises time-frequency Synchronization, System message analysis and cell selection, wherein the time-frequency Synchronization is to synchronize the terminal equipment and the obtained cell in time and frequency, the identification and downlink Synchronization of the terminal equipment to the cell can be realized through Primary Synchronization Signal (PSS) or Secondary Synchronization Signal (SSS), and then through synchronous scrambling, so that the terminal equipment receives a Master Information Block (MIB) message and a System Information Block (SIB) message broadcasted by the cell; the system message analysis mainly comprises that the terminal equipment reads MIB messages and SIB messages so as to acquire the obtained cell information; cell selection is the selection of cells that can be registered based on S-criteria and the resulting information of the cells. The information of the cell may include information of PLMN, cell ID, signal quality of the cell, etc.

The process of the terminal device according to whether the cell or the cell set acquired from the history list includes the cell that can be registered may be different according to the difference of the information included in the history list, and the process is described below with respect to different history list information.

In embodiment 1, the history frequency point list includes cell identifiers and history frequency points of one or more cells that are registered in history, and the terminal device may determine that one cell that can be registered is a target cell among the one or more cells that are registered in history. As shown in table 1, in the historical frequency point list, one or more cell identifiers correspond to one or more historical frequency points one to one, and the sequence of the historical frequency points may be arranged according to a reverse time sequence in which the historical frequency points are registered, that is, the historical frequency points of the cell that has been registered most recently are arranged at the first place. The terminal equipment sequentially acquires the cell identifiers from the historical frequency point list, the cell determined by the acquired cell identifiers is the cell to be processed, and whether the cell to be processed is a target cell is determined according to the cell identifiers of the cell to be processed and the historical frequency points corresponding to the cell identifiers. When the cell to be processed is a cell which can be registered, determining the cell to be processed as the target cell; and when the cell to be processed is not the cell which can be registered, updating the next cell identifier of the cell to be processed, and executing the process of determining whether the cell to be processed is the target cell according to the cell identifier of the cell to be processed and the corresponding historical frequency point.

Taking the process of determining whether the cell to be processed is the target cell according to the cell identifier of the cell to be processed and the corresponding historical frequency point as an example, the process may include: 1) and the terminal equipment acquires the cell identification of the cell to be processed in the historical frequency point list. 2) And the terminal equipment acquires the information of the cell to be processed according to the cell identifier of the cell to be processed and the historical frequency point corresponding to the cell identifier of the cell to be processed. The process of acquiring the information of the cell to be processed may refer to the above time-frequency synchronization and system message analysis process. 3) And the terminal equipment determines whether the cell to be processed is a cell which can be registered according to the information of the cell to be processed and the S criterion.

It should be understood that when a cell that can be registered is not acquired according to the information in the history frequency point list, the terminal device may scan the history frequency points or scan the full band to acquire the cell that can be registered.

For example, the list of historical frequency points is as in table 1, and the terminal device obtains information of the cell that is registered in history according to the historical frequency point 1 and the cell identifier 1 from the first historical frequency point 1, and further determines whether the cell can be registered. When the cell is a cell which can be registered, determining the cell which can be registered as a target cell, and registering the cell to the target cell; and when the cell is not the cell which can be registered, further acquiring the information of the next cell which can be registered in history, and in this way, until determining that one cell which can be registered is the target cell or not acquiring the cell which can be registered according to the information of the history frequency point list. When the cell which can be registered is not acquired according to the information in table 1, the terminal device may scan the history frequency point or scan the full frequency band to acquire the cell which can be registered.

TABLE 1

Historical frequency point 1	Cell identity 1
		Historical frequency point 2	Cell identity 2
Historical frequency point 3	Cell identity 3
		…	…

In other embodiments, the historical frequency point list includes one or both of historical frequency points and RSRP of the cells that are registered historically. The terminal equipment scans the historical frequency points in the historical frequency point list and determines whether the obtained cell set comprises cells which can be registered. The following describes a procedure of determining whether an obtained cell set includes a cell that can be registered when one or both of the history frequency point and the RSRP of a cell that is registered in history are included in the history frequency point list in embodiment 2 and embodiment 3.

The number of cells obtained by scanning a frequency point can be one or more, and a cell set comprises a set of one or more cells obtained by scanning a frequency point. "plurality" means two or more.

Embodiment 2, as shown in table 2, the list of historical frequency points may include one or more historical frequency points. One or more of the historical frequency points in the historical frequency point list are arranged according to the reverse order of the registered time, for example, the historical frequency point of the most recent registered network is arranged with the first bit. And the terminal equipment sequentially acquires the historical frequency points from the historical frequency point list, wherein the acquired historical frequency points are to-be-scanned historical frequency points. The terminal equipment further executes the process of acquiring whether the cell set comprises the registrable cells according to the historical frequency points to be scanned: historical frequency points to be scanned can be scanned to obtain a cell set, and whether a target cell is included in the obtained cell set is determined. When the obtained cell set comprises cells which can be registered, determining one cell which can be registered as the target cell; and when the obtained cell set does not comprise the cells which can be registered, updating the historical frequency point to be scanned as the next historical frequency point, and executing the process of acquiring whether the cell set comprises the cells which can be registered according to the historical frequency point to be scanned.

For example, the terminal device scans the xth historical frequency point to obtain the xth cell set, where the starting value of x is 1. Further, the terminal device determines whether cells that can be registered are included in the xth cell set. If the xth cell set comprises cells which can be registered, the terminal equipment determines that one cell which can be registered is a target cell; and if the x-th cell set does not comprise the cells which can be registered, updating x to be x +1 until the target cell is determined or the cell set obtained by scanning the historical frequency points in the historical frequency point list does not comprise the target cell. And if the cell set obtained by scanning the historical frequency points in the historical frequency point list does not comprise the target cell, the terminal equipment executes full-band scanning.

It should be understood that, in some embodiments, when one or more historical frequency points are included in the historical frequency point list, the terminal device may obtain energy values of the one or more historical frequency points, and then arrange the one or more historical frequency points from large to small according to the energy values. And the terminal equipment sequentially acquires the historical frequency points from the historical frequency point list, wherein the acquired historical frequency points are to-be-scanned historical frequency points. The process of the terminal device further executing obtaining whether the cell set includes a cell that can be registered according to the historical frequency point to be scanned may refer to the related description in embodiment 2, and details are not described here again.

TABLE 2

Historical frequency point 1
	Historical frequency point 2
Historical frequency point 3
	…

Embodiment 3, as shown in table 3, the list of historical frequency points includes historical frequency points and RSRP of one or more historically registered cells. Wherein "a plurality" means two or more. And arranging the historical frequency points in the historical frequency point list from large to small according to the RSRP of the cells which are registered in history. For example, as shown in table 3, RSRP1> RSRP 2> RSRP3, with historical frequency point 1 arranged first. And the terminal equipment sequentially acquires the historical frequency points from the historical frequency point list, wherein the acquired historical frequency points are to-be-scanned historical frequency points. The process of the terminal device further executing obtaining whether the cell set includes a cell that can be registered according to the historical frequency point to be scanned may refer to the related description in embodiment 2, and details are not described here again.

TABLE 3

Historical frequency point 1	RSRP1
		Historical frequency point 2	RSRP2
Historical frequency point 3	RSRP3
		…	…

It should be understood that, in some embodiments, when the terminal device is turned on for the first time or no cell that can be registered is obtained according to the historical frequency point list, the terminal device performs full-band scanning to determine that one cell that can be registered is a target cell.

And scanning the full frequency band of the terminal equipment to acquire a plurality of frequency points. And the terminal equipment scans the jth frequency point to obtain a jth cell set, wherein j is a positive integer. When the jth cell set comprises cells which can be registered, determining one cell which can be registered as a target cell; when the target cell is not included in the j-th set, j is updated to be j +1, in this way, until a cell which can be registered is obtained, and the cell is determined to be the target cell.

For example, the terminal device starts to scan the frequency point of each frequency Band (Band) from the first frequency Band (Band1), and obtains the frequency point in each Band. And sequencing all frequency points in each Band according to the energy value. The terminal device may obtain the first cell set from the first frequency point in the Band1, and further determine whether the first cell set includes cells that can be registered. And if the first cell set does not comprise the cells which can be registered, scanning the next frequency point to obtain the next cell set and judging whether the cells which can be registered are included. And if the cell set obtained by scanning all frequency points in the Band1 does not include cells which can be registered, scanning the next frequency Band2, and repeating the process until obtaining the cells which can be registered.

S204, the terminal device obtains Reference Signal Receiving Power (RSRP) of the target cell.

S205, the terminal device detects whether the RSRP of the target cell is larger than a target threshold value.

When the RSRP of the target cell is greater than the target threshold, the terminal device executes S206; otherwise, the terminal device does not perform S206.

The target threshold may be set to a fixed value, or may be flexibly set by the terminal device according to a change of a network condition. The target threshold may be determined by, but is not limited to:

(1) mode 1 and mode 2 are modes of determining the target threshold value to be a fixed value:

mode 1, the target threshold may be determined to be RSRP that enables the terminal device to receive better network service, e.g., -90 dbm.

In the mode 2, the target threshold may also be determined to be an average value or an equivalent value of a median of RSRPs of cells covered by base stations of network operators in a geographic area where the terminal device is located, and these values may indicate a situation of local network signals.

(2) Mode 3, mode 4, and mode 5 are modes in which the terminal device flexibly sets the target threshold according to a change in the network situation:

and in the mode 3, the target threshold is determined according to the RSRP of N cells which are historically registered by the terminal equipment, wherein N is a positive integer.

In some embodiments, N RSRPs are stored in the historical frequency point list, where the N RSRPs are in one-to-one correspondence with the N historical frequency points, and the terminal device may determine that an average value of the N RSRPs in the historical frequency point list is a target threshold.

In other embodiments, RSRP is not stored in the historical frequency point list, and the terminal device may obtain RSRP of a cell that is historically registered, and set the average of the N times of historical RSRPs as a target threshold. Specifically, after the terminal device registers a cell each time, the RSRP of the registered cell is acquired and stored. When the terminal equipment registers a new cell again, the terminal equipment determines the average value of the RSRPs of the N cells registered for the previous N times as the target threshold value.

In the method 4, the terminal device may use an average value of the RSRP of the target cell and the first target threshold as the target threshold, where the first target threshold is the target threshold determined after the cell is registered last time.

In mode 5, the terminal device may further determine that the target threshold is an average value of RSRPs of the target cell acquired by the terminal device within a period of time.

In the mode 3, the mode 4, and the mode 5, the terminal device flexibly sets the target threshold according to the change of the network condition, so that the terminal device can flexibly determine whether to store the RSRP of the target cell when the network state changes, and further determine whether to store the frequency point of the target cell. Therefore, the terminal equipment can still store the frequency point of the target cell in the condition of poor network state or replacement of the registered cell, so that the terminal equipment can be started to quickly register to the network after abnormal shutdown and other conditions.

S206, the terminal equipment detects whether the frequency point of the target cell is stored in the historical frequency point list.

When the frequency point of the target cell is not stored in the historical frequency point list, the terminal equipment executes S207 to store the frequency point of the target cell in the historical frequency point list; otherwise, when the frequency point of the target cell has been stored in the historical frequency point list, S207 is not executed any more.

In some embodiments, as shown in table 1 and table 3, the historical frequency point list further includes information such as a cell identifier and RSRP of the target cell. And when the frequency point of the target cell is not stored in the historical frequency point list, the terminal equipment acquires the cell identifier and the RSRP of the target cell, and then S207 is executed.

And S207, the terminal equipment stores the frequency points of the target cell in a historical frequency point list.

In some embodiments, the terminal device updates the historical frequency point list, and stores the frequency point of the target cell in the first position of the historical frequency point list, and the form of the historical frequency point list may be as shown in table 2 above.

In some embodiments, the terminal device stores the acquired cell identifier of the target cell, RSRP, and frequency points of the target cell in a historical frequency point list, where the form of the historical frequency point list may be as shown in tables 1 and 3.

It should be noted that, frequently writing the registered frequency point into the historical frequency point list will affect the service life of the Flash memory. From this point of view, the storage operation to the Flash memory should be reduced. Therefore, two judgments S205 and S206 are provided, and only when the RSRP of the frequency point of the currently registered cell is not less than the target threshold, that is, the target cell is a cell with better signal, and the frequency point of the target cell is not stored in the history frequency point list, the operation of storing the frequency point is executed, so that it is ensured that the history frequency point is available when the mobile terminal is started next time, the network can be quickly registered, Flash damage caused by frequent information storage operation is avoided, and the effect of improving user experience is achieved.

And S208, the terminal equipment ends the service.

S208a, whether the terminal device receives the instruction to end the service.

During the use of the terminal device, the terminal device may also end the network service due to an emergency or receiving an instruction to end the service. Wherein, the emergency situation may be sudden loss of signal coverage or abnormal shutdown; the command to end the service may be a command to open the flight mode or a command to shut down.

In some embodiments, when the terminal device receives a shutdown instruction, for example, the terminal device receives a shutdown instruction or an instruction to turn on an airplane mode, the terminal device may perform S208b to detect whether the frequency point of the target cell is stored in the historical frequency point list. When the frequency point of the target cell is stored in the historical frequency point list, the terminal equipment is shut down or a flight mode is opened; when the frequency point of the target cell is not stored in the historical frequency point list, the terminal device executes S208c to store the frequency point of the target cell in the historical frequency point list, and then shuts down or opens the flight mode.

In other embodiments, the terminal device does not receive the shutdown instruction, and the terminal device is abnormally shutdown due to an emergency, for example, when the terminal device is suddenly powered off, the terminal device is forcibly powered off, and the network service is ended.

Before the terminal equipment finishes the network service due to abnormal shutdown, the terminal equipment executes step S203 to connect the network, and then executes step S204-S207 to store the frequency point of the target cell in the historical frequency point list. Therefore, after the terminal equipment is started up next time, the terminal equipment can be quickly resident in the target cell through the historical frequency points without executing full-band scanning, the time for registering the terminal equipment on the network is shortened, and the user experience is improved.

A terminal device according to an embodiment of the present application is described below.

Referring to fig. 3, fig. 3 is a schematic structural diagram of a terminal device 300 according to an embodiment of the present disclosure, where the terminal device 300 may be the terminal device 10 shown in fig. 1, and the terminal device 300 includes a processor 301, a memory 302, a communication module 303, an input/output (I/O) interface 304, a power management module 305, and the like. An input/output (I/O) interface 304 is coupled to peripheral devices such as a display 3041, a camera 3042, a keyboard 3043, and a SIM card interface 3044 through a bus 306, and the bus 306 is used for realizing connection and communication among these components.

It is to be understood that the illustrated structure of the embodiment of the present invention does not specifically limit the terminal device 300. In other embodiments of the present application, terminal device 300 may include more or fewer components than shown, or some components may be combined, some components may be split, or a different arrangement of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

The processor 301 may be one or more processing units such as an Application Processor (AP), a modem processor, a Graphics Processing Unit (GPU), an Image Signal Processor (ISP), a controller, and the like. The processing unit may be a separate device, or may be integrated in one or more chips.

A memory 302 is coupled to the processor 301 for storing various software programs and/or sets of instructions. In particular implementations, memory 302 may include high speed random access memory and may also include non-volatile memory, such as one or more Flash memories, magnetic disk storage devices, Flash memory devices, or other non-volatile solid state storage devices. The memory 302 may store an operating system, such as an embedded operating system like ANDROID, IOS, WINDOWS, or LINUX. The memory 302 may also store a network communication program that may be used to communicate with one or more terminal devices, one or more network devices, for example, with other terminal devices or network nodes. The memory 302 may store the above-described program of the registered network in fig. 2, so that the terminal device can implement the functions implemented by the terminal device in the respective steps as described above in fig. 2. The memory 302 may also store other programs, which are not limited herein.

The communication module 303 may implement a wireless communication function, and may be the communication module 500 in fig. 5 described below. Among them, the communication module 303 transmits and receives electromagnetic wave signals through the antenna 3031, so that the terminal device 300 can communicate with a network and other devices through a wireless communication technology. The wireless communication technology may include global system for mobile communications (GSM), General Packet Radio Service (GPRS), code division multiple access (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. The GNSS may include a Global Positioning System (GPS), a global navigation satellite system (GLONASS), a beidou navigation satellite system (BDS), a quasi-zenith satellite system (QZSS), and/or a Satellite Based Augmentation System (SBAS).

The SIM card interface 3044 is used to connect a SIM card. The SIM card can be brought into and out of contact with the terminal apparatus 300 by being inserted into the SIM card interface 3044 or pulled out from the SIM card interface 3044. The terminal device 300 may support 1 or N SIM card interfaces, where N is a positive integer greater than 1. The SIM card interface 3044 may support a Nano SIM card, a Micro SIM card, a SIM card, or the like. Multiple cards can be inserted into the same SIM card interface 3044. The types of the plurality of cards may be the same or different. The SIM card interface 3044 may also be compatible with different types of SIM cards. The SIM card interface 3044 can be compatible with an external memory card. The terminal device 300 interacts with the network through the SIM card to implement functions such as communication and data communication. In some embodiments, the terminal device 300 employs eSIM, namely: an embedded SIM card. The eSIM card may be embedded in the terminal device 300 and cannot be separated from the terminal device 300.

The power management module 305 is used to connect a battery or a power source, and the charging management module 305 is connected to the processor 301. The power management module 305 receives input of a battery or a power source, and supplies power to the processor 301, the memory 302, the display 3041, the camera 3042, the keyboard 3043, the communication module 303, and the like.

In this embodiment, the processor 301 is configured to call the instructions stored in the memory 302, and perform:

registering the target cell according to a historical frequency point list, wherein the historical frequency point list comprises one or more historical frequency points;

acquiring Reference Signal Received Power (RSRP) of a target cell;

when the RSRP of the target cell is not smaller than a target threshold value, acquiring a frequency point of the target cell;

and when the historical frequency point list does not comprise the frequency point of the target cell, storing the frequency point of the target cell into the historical frequency point list.

It should be noted that the terminal device is further configured to implement the method implemented by the terminal device in the embodiment of the method shown in fig. 2, which may specifically refer to the related description in fig. 2 and is not described herein again.

The following describes an apparatus for registering a network according to an embodiment of the present application.

As shown in fig. 4, a schematic structural diagram of a network registration apparatus is further provided for the embodiment of the present application, where the network registration apparatus 400 may be the terminal device 10 in fig. 1, and may be used to implement the method for registering a network in the method shown in fig. 2, where the apparatus 400 may include, but is not limited to the following units:

It should be noted that each unit in the network registration apparatus is configured to implement the method for registering a network shown in fig. 2, and the network registration apparatus may further include other units for implementing the method for registering a network shown in fig. 2, which may specifically refer to the relevant description in the method embodiment shown in fig. 2, and is not described here again.

A communication module provided in an embodiment of the present application is described below.

As shown in fig. 5, a schematic structural diagram of a communication module 500 is further provided for the embodiment of the present application, where the communication module 500 may be used to implement the method for registering a network in the method shown in fig. 2, and the module 500 may include, but is not limited to, the following parts:

the processing unit 501 is configured to read a stored historical frequency point list of the storage unit, where the historical frequency point list includes one or more historical frequency points;

the radio frequency module 502 is configured to communicate with one or more cells determined by one or more historical frequency points;

the processing unit 501 is further configured to determine a target cell among the one or more cells; acquiring Reference Signal Received Power (RSRP) of the target cell; when the RSRP of the target cell is not smaller than a target threshold value, acquiring a frequency point of the target cell;

the storage unit 503 is configured to store the frequency point of the target cell when the historical frequency point list does not include the frequency point of the target cell.

The processing unit 501 is connected to the radio frequency module 502 and the storage unit 503 through a bus. The processing unit 501 may include one or more processors and the storage unit 503 may include one or more memories.

It should be noted that each unit in the communication module is configured to implement the method for registering a network shown in fig. 2, and the communication module may further include other modules or units configured to implement the method for registering a network shown in fig. 2, which may specifically refer to the related description in the embodiment of the method shown in fig. 2, and is not described here again.

As used in the above embodiments, the term "when …" may be interpreted to mean "if …" or "after …" or "in response to a determination of …" or "in response to a detection of …", depending on the context. Similarly, depending on the context, the phrase "at the time of determination …" or "if (a stated condition or event) is detected" may be interpreted to mean "if the determination …" or "in response to the determination …" or "upon detection (a stated condition or event)" or "in response to detection (a stated condition or event)".

It is to be understood that one of ordinary skill in the art would recognize that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed in the various embodiments disclosed herein can be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

Those of skill would appreciate that the functions described in connection with the various illustrative logical blocks, modules, and algorithm steps disclosed in the various embodiments disclosed herein may be implemented as hardware, software, firmware, or any combination thereof. If implemented in software, the functions described in the various illustrative logical blocks, modules, and steps may be stored on or transmitted over as one or more instructions or code on a computer-readable medium and executed by a hardware-based processing unit. The computer-readable medium may include a computer-readable storage medium, which corresponds to a tangible medium, such as a data storage medium, or any communication medium including a medium that facilitates transfer of a computer program from one place to another (e.g., according to a communication protocol). In this manner, a computer-readable medium may generally correspond to (1) a non-transitory tangible computer-readable storage medium, or (2) a communication medium, such as a signal or carrier wave. A data storage medium may be any available medium that can be accessed by one or more computers or one or more processors to retrieve instructions, code and/or data structures for implementing the techniques described herein. The computer program product may include a computer-readable medium.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

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

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of registering a network, the method comprising:

acquiring Reference Signal Received Power (RSRP) of the target cell;

2. The method according to claim 1, wherein the list of historical frequency points further includes cell identifiers corresponding to the one or more historical frequency points, and the registering to the target cell according to the list of historical frequency points includes:

acquiring a cell identifier of a cell to be processed in the historical frequency point list;

acquiring information of the cell to be processed according to the cell identifier of the cell to be processed and a historical frequency point corresponding to the cell identifier of the cell to be processed;

when the cell to be processed is determined to be a cell which can be registered according to the information of the cell to be processed and an S criterion, determining the cell to be processed to be the target cell;

and registering the target cell.

3. The method according to claim 2, wherein the cell identifiers are arranged in reverse order according to the registered time of the history frequency points, and the obtaining of the cell identifier of the cell to be processed in the history frequency point list comprises:

and sequentially acquiring cell identifiers from the historical frequency point list, wherein the cells determined by the acquired cell identifiers are the cells to be processed.

4. The method according to claim 2 or 3, wherein the storing the frequency point of the target cell into the historical frequency point list comprises:

and storing the cell identification of the target cell and the frequency point of the target cell into the historical frequency point list.

5. The method according to claim 1, wherein the registering to the target cell according to the historical frequency point list comprises:

acquiring historical frequency points to be scanned in the historical frequency point list;

scanning the historical frequency points to be scanned to obtain a cell set;

determining the registrable cell as the target cell when the cell set comprises registrable cells;

and registering the target cell.

6. The method according to claim 5, wherein the historical frequency points in the historical frequency point list are arranged in reverse order of registered time or in descending order of RSRP corresponding to the historical frequency points, and the obtaining of the historical frequency points to be scanned in the historical frequency point list comprises:

and sequentially acquiring historical frequency points from the historical frequency point list, wherein the acquired historical frequency points are to-be-scanned historical frequency points.

7. The method according to claim 6, wherein the storing the frequency points of the target cell into the historical frequency point list comprises:

and storing the RSRP of the target cell and the frequency point of the target cell into the historical frequency point list.

8. The method of claim 7, further comprising:

and determining the target threshold as the mean value of the RSRP in the historical frequency point list.

9. The method according to any one of claims 1-8, further comprising:

when receiving a service ending instruction, if the historical frequency point list does not include the frequency point of the target cell, storing the frequency point of the target cell in the historical frequency point list, wherein the service ending instruction comprises a shutdown instruction or a flight mode starting instruction;

responding to the instruction for ending the service.

10. A terminal device comprising a processor and a memory, wherein the processor is coupled to the memory via a bus, and wherein the processor is configured to invoke instructions stored by the memory to perform: a method of registering a network as claimed in any one of claims 1 to 9.