WO2018010287A1

WO2018010287A1 - Terminal control method and device

Info

Publication number: WO2018010287A1
Application number: PCT/CN2016/098074
Authority: WO
Inventors: 王少鹏; 白丽
Original assignee: 中兴通讯股份有限公司
Priority date: 2016-07-15
Filing date: 2016-09-05
Publication date: 2018-01-18
Also published as: CN107623911A

Abstract

Embodiments of the present invention provide a terminal control method and device. The terminal control method comprises: obtaining geographical location information of a terminal; obtaining, according to the geographical location information, an identifier of a target cell from a cell information database preset by the terminal; and carrying out cell reselection or network searching according to the identifier of the target cell. According to the solutions of embodiments of the present invention, cell reselection or network searching can be carried out by means of the location technology of a terminal, so that the process of reading system messages in a cell-by-cell mode, the process of cell reselection, and the complex process of cell signal quality evaluation when the terminal moves in a wireless network are simplified, the power consumption of the terminal is reduced, and the efficiency and the stability of cell reselection or network searching are improved.

Description

Terminal control method and device

Technical field

The present invention relates to the field of communications technologies, and in particular, to a terminal control method and apparatus.

Background technique

Currently, terminals often use the following methods for cell reselection or network search:

(1) Perform cell reselection using relevant R criteria

In the cell reselection R criterion, the offset value Q _{hyst is used to} increase the offset value of the speed-dependent scaling factor corresponding to the medium speed state and the high speed state, and the reselection determination time is extended to improve the reselection of the mobile terminal. Rate and stability; however, only two mobile states are difficult to meet the vehicle operating on the road at various speeds, and this method is limited to the same frequency or different frequency and the same priority, does not apply to different priorities. Level of heterogeneous reselection.

(2) Using the neighbor list method to perform cell reselection

By setting the intra-frequency or inter-frequency neighbor list in the base station system message, the measurement of the neighboring cell is limited to the neighbor list in the cell reselection, thereby improving the cell reselection efficiency; however, this method requires terminal reading. The system message of each cell is taken, and the neighbor list is continuously updated. When the terminal passes through multiple cells at a high speed, the neighbor list update lags, causing the reselection to fail.

(3) Perform a network search by setting a network search timer

The network search is controlled by a timer. However, if the sleep time setting is too short, the power consumption cannot be effectively reduced. If the sleep time is set too long, the network connection recovery delay will occur, and the size of the signal-free coverage area spanned by the long-distance vehicle is greatly different. Such as caves, canyons, base station blind spots, deserts, etc., network search timers with fixed durations, can not effectively achieve network search in this scenario.

That is to say, the related cell reselection or network search method has the defects of low efficiency and poor stability.

Summary of the invention

An object of the embodiments of the present invention is to provide a terminal control method and apparatus to solve the problem of low efficiency and poor stability of a related cell reselection or network search method.

In order to achieve the above object, an embodiment of the present invention provides a terminal control method, including:

Obtaining the geographical location information of the terminal;

And obtaining, according to the foregoing geographical location information, an identifier of the target cell from the cell information database preset by the terminal, where the cell information database stores at least cell information of all cells in the location area where the terminal is located;

Cell reselection or network search is performed according to the identifier of the target cell.

Optionally, the foregoing cell information includes at least an identifier of the corresponding cell and geographic location information of a signal coverage boundary.

Optionally, before the step of acquiring the geographic location information of the terminal, the foregoing method further includes:

Receiving, by the server, cell information of all cells in a location area where the foregoing terminal is located;

And updating the information in the cell information database according to the received cell information.

Optionally, the step of receiving, by the receiving server, the cell information of all cells in the location area of the terminal where the terminal is located includes:

When the terminal moves from the previous location area to the current location area, the cell information of all cells in the location area where the terminal is located by the server is received.

Optionally, if the cell reselection or the network search fails according to the identifier of the target cell, the method further includes:

Perform cell reselection or network search according to preset rules;

If the cell reselection or the network search is successful according to the preset rule, the current geographical location information of the terminal and the identifier of the located cell are recorded;

Uploading the geographical location information recorded above and the identifier of the located cell to the server, so that the server updates the corresponding cell information for subsequent terminal use.

Optionally, the cell information acquired from the network operator or the cells in each location area is pre-stored in the foregoing server.

Optionally, the foregoing step of obtaining geographic location information of the terminal includes:

Obtaining the latitude and longitude information of the terminal or acquiring the latitude and longitude information and the height information of the terminal.

The embodiment of the invention further provides a terminal control device, including:

a first acquiring module, configured to acquire geographic location information of the terminal;

The second obtaining module is configured to acquire, according to the geographical location information, an identifier of the target cell from the cell information database preset by the terminal, where the cell information database stores at least all cells in the location area where the terminal is located. Cell information

The first execution module is configured to perform cell reselection or network search according to the identifier of the target cell.

Optionally, the foregoing apparatus further includes:

a receiving module, configured to receive cell information of all cells in a location area where the foregoing terminal is delivered by the server;

The update module is configured to update the information in the cell information database according to the received cell information.

Optionally, the receiving module is specifically configured to:

Optionally, the foregoing apparatus further includes:

a second execution module, configured to perform cell reselection or network search according to a preset rule when cell reselection or network search fails according to the identifier of the target cell;

a recording module, configured to record the current geographical location information of the terminal and the identifier of the located cell when the cell reselection or the network search succeeds according to the preset rule;

The uploading module is configured to upload the geographical location information of the foregoing record and the identifier of the located cell to the server, so that the server updates the corresponding cell information for subsequent terminal use.

Optionally, the foregoing first obtaining module is specifically configured to:

In the embodiment of the present invention, a computer storage medium is further provided, and the computer storage medium may store an execution instruction for executing the terminal control method in the foregoing embodiment.

The beneficial effects of the embodiments of the present invention are as follows:

The terminal control method of the embodiment of the present invention obtains the identifier of the target cell from the cell information database preset by the terminal according to the geographical location information of the terminal, and performs cell reselection according to the identifier of the target cell. Network search can perform cell reselection or network search by means of terminal location technology, reduce system-by-cell read system message, cell reselection and complex cell signal quality evaluation process when the terminal moves in the wireless network, reduce terminal power consumption, and improve cell Efficiency and stability of re-selection or web search.

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without paying for creative labor.

FIG. 1 is a flow chart showing a terminal control method according to an embodiment of the present invention.

2 is a flow chart showing a terminal control method of a specific example of the present invention.

FIG. 3 is a schematic diagram showing a specific application scenario of the terminal control method using the present invention.

FIG. 4 is a block diagram showing the structure of a terminal control apparatus according to an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

As shown in FIG. 1 , an embodiment of the present invention provides a terminal control method, which is applied to a terminal, where the terminal control method includes the following steps 101 to 103:

Step 101: Obtain geographic location information of the terminal.

Step 102: Obtain an identifier of the target cell from the cell information database preset by the terminal according to the geographic location information, where at least the cells in the location area where the terminal is located are stored in the cell information database. Cell information

Step 103: Perform cell reselection or network search according to the identifier of the target cell.

The terminal control method of the embodiment of the present invention obtains the identifier of the target cell from the cell information database preset by the terminal according to the geographical location information of the terminal, according to the geographical location information, according to the identifier of the target cell. Perform cell reselection or network search, and perform cell reselection or network search by using the positioning technology of the terminal, and reduce the system-by-cell read system message, cell reselection, and complex cell signal quality evaluation process when the terminal moves in the wireless network, and reduce the process. Terminal power consumption, improving the efficiency and stability of cell reselection or network search.

Specifically, the cell information includes at least an identifier of a corresponding cell and geographic location information of a signal coverage boundary. That is, after obtaining the geographic location information of the terminal, the terminal may set the cell as the target cell and obtain the corresponding identifier as long as the geographical location information is consistent with the geographical location information of the signal coverage boundary of the cell. For cell reselection or network search.

In the embodiment of the present invention, the step 101 includes:

Obtaining latitude and longitude information of the terminal or acquiring latitude and longitude information and height information of the terminal.

That is to say, the geographical location information in the embodiment of the present invention may be latitude and longitude information, or may be latitude and longitude information and altitude information.

Specifically, when acquiring the geographical location information, it may be based on a Global Positioning System (GPS), a Differential Global Positioning System (DGPS), or an Assisted Global Positioning System (Assisted Global Positioning System). The acquisition of the positioning technology, such as A-GPS, can also be obtained based on the Observed Time Difference of Arrival (OTDOA) method of the wireless network, which is not limited by the present invention.

In the example of the present invention, before the step 101, the method further includes:

Receiving, by the server, cell information of all cells in a location area where the terminal is located;

And updating information in the cell information database according to the received cell information.

That is, the cell information stored in the cell information database preset by the terminal is updated by using information in the server, so that the information in the cell information database can be updated in real time.

The step of receiving the cell information of all cells in the location area of the terminal that is sent by the receiving server is specifically:

When the terminal moves from the previous location area to the current location area, the cell information of all cells in the location area where the terminal is delivered by the server is received.

In the embodiment of the present invention, if the cell reselection or the network search fails according to the identifier of the target cell, the method further includes:

Perform cell reselection or network search according to preset rules;

If the cell reselection or the network search succeeds according to the preset rule, the current geographical location information of the terminal and the identifier of the located cell are recorded;

Uploading the recorded geographical location information and the identifier of the located cell to the server, so that the server updates the corresponding cell information for subsequent terminal use.

In this way, it can be ensured that even if the cell reselection or the network search fails according to the information acquired from the server, the cell reselection or the network search may be performed according to the relevant standard rules, and the information reported by the plurality of terminals is collected. The incorrect cell information in the server is updated in real time to ensure the accuracy of the subsequent information for subsequent terminal use.

It should be noted that when it is generally determined that the terminal reaches the signal coverage boundary of the cell, it can be selected. The cell, so the corresponding cell information can be corrected according to the geographical location information reported by the terminal. In practical applications, if the terminal does not obtain the cell information of the corresponding cell from the server, the cell reselection or network search may be directly performed according to relevant standard rules.

Specifically, in the embodiment of the present invention, the area where the terminal can be located is divided by the location area, and each location area has its own identifier, such as TA1, TA2, TA3, etc., and each location area may have multiple Community. After the terminal enters a new location area, the location area identifier of the location area where the terminal is located is determined, and the location area identifier is reported to the server to download and the location area identifier from the server. The cell information of all cells corresponding to the symbol, that is, the cell information of all cells in the location area where the terminal is located by the server is received.

The cell information stored in the server may be embodied in the following Table 1, that is, in the following data format:

Table 1

In Table 1, the geographical location information is latitude and longitude information and height information, and the location area involved has TA0, TA1, and TA2, and each location area corresponds to 4 cells, and the cell information of each cell includes a cell identifier and a corresponding Geographical location information (It should be noted that in Table 1, the geographical location information corresponding to the cell identifier only indicates one, and actually there may be multiple, which belong to the corresponding The signal coverage boundary of the cell). In addition, Table 1 also records whether cell reselection or network search is successful according to the corresponding cell information, "1" indicates cell reselection or network search success, and "0" indicates cell reselection or network search failure.

For example, if a terminal is located in the location area TA1, the information about the cell information that the terminal can download from the server on the basis of Table 1 can be as shown in Table 2 below:

Table 2

If the geographic location information of the terminal is "1111.123, N, 324.411, W, 12.0", the ID of the corresponding target cell is determined to be "324", and the cell reselection or network is performed based on the target cell ID "324". search for.

Specifically, in order to accurately determine the location area identifier of the terminal, the server may also preset the location area neighbor relationship, as shown in Table 3 below:

位置区标识符Location area identifier	位置区邻区关系Location area neighbor relationship
TA0TA0	TA1-1TA1-1
TA1TA1	TA1TA1
TA2TA2	TA1+1TA1+1
TA3TA3	TA2+1TA2+1

table 3

In this way, the server can obtain the identifier of the corresponding location area according to the report of the terminal, and according to the neighbor relationship of the location area shown in Table 3, when the server receives the information of the location area of the TA1, the server automatically obtains the next location automatically. The zone identifier is TA2.

In the embodiment of the present invention, the server may obtain the cell information from the network operator or the cells in each location area, in addition to updating the information stored in the terminal according to the report information of the multiple terminals, to save and Issued to subsequent terminals.

Next, referring to FIG. 2, the terminal control method of the present invention will be described in detail by way of specific examples. The terminal control method in FIG. 2 includes the following steps:

Step 201: The terminal completes the tracking area update TAU process, enters the location area TA1, and receives the cell information of all the cells in the TA1 from the server; wherein, if the receiving is successful, step 202 is performed; otherwise, step 204 is performed;

Step 202: Obtain an identifier ID of the target cell from cell information of all cells in the TA1 based on the geographic location information of the TA1.

Step 203: According to the target cell ID, parsing the center frequency of the target cell, performing cell reselection or network search; if successful, ending the process, otherwise, performing step 204;

Step 204: Perform cell reselection or network search according to a preset standard rule, and record a corresponding geographic location information of the terminal and an identifier of the located cell.

Step 205: The terminal moves to the new location area TA2, initiates a TAU process, and triggers an uplink data transmission request.

Step 206: Send the information recorded in the step 204 to the server, cause the server to update the corresponding cell information, and repeat the step 101.

In the following, a specific application scenario of the present invention will be described by taking cell reselection as an example.

In FIG. 3, the terminal UE sequentially passes through a location area TA0, TA1, TA2, and TA3, where the TA1 has a cell cell 1-A, a cell 1-B, and a cell 1-C, and the TA2 has a cell cell 2-A. The cell 2-B and the cell 2-C store cell reselection information (ie, cell information of the corresponding cell) in the location areas TA0 to TA3. It should be noted that the cell reselection information of each location area may include multiple different cell reselection information, that is, cell reselection information 1, cell reselection information 2, etc., and generally corresponds to the number of cells in the location area. .

When the UE enters the TA1, the cell reselection process of the TA1 is performed; when the UE moves from the TA1 to the TA2, the UE may upload the cell reselection information of the TA1 to the server, and receive the cell reselection information of the TA2 from the server, to The cell reselection process of TA2 is performed; when the UE is at TA2, the cell reselection process of TA2 is also performed.

Referring to FIG. 4, an embodiment of the present invention further provides a terminal control apparatus, as shown in FIG. Corresponding to the terminal control method, the terminal control device includes:

The first obtaining module 41 is configured to acquire geographic location information of the terminal;

The second obtaining module 42 is configured to acquire, according to the geographical location information, an identifier of the target cell from the cell information database preset by the terminal, where at least the location of the terminal is stored in the cell information database. Cell information of all cells in the area;

The first execution module 43 is configured to perform cell reselection or network search according to the identifier of the target cell.

The terminal control device of the embodiment of the present invention acquires an identifier of the target cell from the cell information database preset by the terminal according to the geographical location information of the terminal, according to the geographical location information, according to the identifier of the target cell. Perform cell reselection or network search, and perform cell reselection or network search by using the positioning technology of the terminal, and reduce the system-by-cell read system message, cell reselection, and complex cell signal quality evaluation process when the terminal moves in the wireless network, and reduce the process. Terminal power consumption, improving the efficiency and stability of cell reselection or network search.

In the embodiment of the present invention, the cell information includes at least an identifier of a corresponding cell and geographic location information of a signal coverage boundary.

Specifically, the device further includes:

a receiving module, configured to receive cell information of all cells in a location area where the terminal is delivered by the server;

And an update module, configured to update information in the cell information database according to the received cell information.

The receiving module is specifically configured as:

In the embodiment of the present invention, the device further includes:

a recording module, configured to perform cell reselection or network search succeeding according to a preset rule, Recording the current geographical location information of the terminal and the identifier of the located cell;

The uploading module is configured to upload the recorded geographical location information and the identifier of the located cell to the server, so that the server updates the corresponding cell information for subsequent terminal use.

Specifically, the cell information acquired from the network operator or the cells of each location area is pre-stored in the server.

Specifically, the first acquiring module is specifically configured to:

Embodiments of the present invention also provide a storage medium. Optionally, in the embodiment, the foregoing storage medium may be configured to store program code for performing the following steps:

S1, acquiring geographic location information of the terminal;

S2: Obtain an identifier of the target cell from the cell information database preset by the terminal according to the geographic location information; where the cell information database stores at least cell information of all cells in the location area where the terminal is located;

S3: Perform cell reselection or network search according to the identifier of the target cell.

Optionally, the storage medium is further arranged to store program code for performing the following steps:

S1: Before acquiring the geographic location information of the terminal, receiving cell information of all cells in a location area where the terminal delivered by the server is located;

S2: Update the information in the cell information database according to the received cell information.

Optionally, in this embodiment, the foregoing storage medium may include, but not limited to, a USB flash drive, a Read-Only Memory (ROM), a Random Access Memory (RAM), a mobile hard disk, and a magnetic memory. A variety of media that can store program code, such as a disc or a disc.

For example, the specific examples in this embodiment may refer to the examples described in the foregoing embodiments and the optional embodiments, and details are not described herein again.

The above description is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can also make several improvements and retouchings without departing from the principles of the present invention. It should be considered as the scope of protection of the present invention.

Industrial applicability

In the embodiment of the present invention, the identifier of the target cell is obtained from the cell information database preset by the terminal according to the geographical location information of the terminal, and the cell reselection or the network search is performed according to the identifier of the target cell. The cell reselection or network search can be performed by using the positioning technology of the terminal, and the system information, cell reselection and complex cell signal quality evaluation process of the cell are read by the cell when the terminal moves in the wireless network, the terminal power consumption is reduced, and the cell reselection is improved. Or the efficiency and stability of web search.

Claims

A terminal control method includes:

Obtaining the geographical location information of the terminal;

Obtaining, according to the geographical location information, an identifier of the target cell from the cell information database preset by the terminal; where the cell information database stores at least cell information of all cells in the location area where the terminal is located;

Perform cell reselection or network search according to the identifier of the target cell.
The method of claim 1, wherein the cell information comprises at least an identifier of a corresponding cell and geographic location information of a signal coverage boundary.
The method of claim 1, wherein before the step of acquiring geographic location information of the terminal, the method further comprises:

Receiving, by the server, cell information of all cells in a location area where the terminal is located;

And updating information in the cell information database according to the received cell information.
The method according to claim 3, wherein the step of receiving the cell information of all cells in the location area in which the terminal is located by the receiving server includes:

When the terminal moves from the previous location area to the current location area, the cell information of all cells in the location area where the terminal is delivered by the server is received.
The method according to claim 3, wherein if the cell reselection or the network search fails according to the identifier of the target cell, the method further includes:

Perform cell reselection or network search according to preset rules;

If the cell reselection or the network search succeeds according to the preset rule, the current geographical location information of the terminal and the identifier of the located cell are recorded;

Uploading the recorded geographical location information and the identifier of the located cell to the server, so that the server updates the corresponding cell information for subsequent terminal use.
The method according to claim 3, wherein the cell information acquired from the network operator or the cells of the respective location areas is pre-stored in the server.
The method according to any one of claims 1-6, wherein the step of acquiring geographic location information of the terminal comprises:

Obtaining latitude and longitude information of the terminal or acquiring latitude and longitude information and height information of the terminal.
A terminal control device includes:

a first acquiring module, configured to acquire geographic location information of the terminal;

a second acquiring module, configured to acquire, according to the geographic location information, an identifier of a target cell from a cell information database preset by the terminal, where the cell information database stores at least a location area where the terminal is located Cell information of all cells within;

The first execution module is configured to perform cell reselection or network search according to the identifier of the target cell.
The apparatus of claim 8, wherein the cell information comprises at least an identifier of a corresponding cell and geographic location information of a signal coverage boundary.
The apparatus of claim 8 wherein said apparatus further comprises:

a receiving module, configured to receive cell information of all cells in a location area where the terminal is delivered by the server;

And an update module, configured to update information in the cell information database according to the received cell information.
The device according to claim 10, wherein the receiving module is specifically configured to:

When the terminal moves from the previous location area to the current location area, the cell information of all cells in the location area where the terminal is delivered by the server is received.
The device of claim 10, wherein the device further comprises:

a second execution module, configured to perform cell reselection or network search according to a preset rule when cell reselection or network search fails according to the identifier of the target cell;

a recording module, configured to record, when the cell reselection or the network search succeeds according to the preset rule, the current geographic location information of the terminal and the identifier of the located cell;

The uploading module is configured to upload the recorded geographical location information and the identifier of the located cell to the server, so that the server updates the corresponding cell information for subsequent terminal use.
The apparatus according to claim 10, wherein said server is pre-stored therein Cell information obtained from a network operator or a cell in each location area.
The device according to any one of claims 8-13, wherein the first obtaining module is specifically configured to:

Obtaining latitude and longitude information of the terminal or acquiring latitude and longitude information and height information of the terminal.