WO2014198085A1

WO2014198085A1 - Cell reselection list acquisition method and terminal

Info

Publication number: WO2014198085A1
Application number: PCT/CN2013/082001
Authority: WO
Inventors: 王一珊
Original assignee: 中兴通讯股份有限公司
Priority date: 2013-06-09
Filing date: 2013-08-21
Publication date: 2014-12-18
Also published as: CN104244339A

Abstract

Provided are a cell reselection list acquisition method and terminal, the method comprising: acquiring in different ways a first neighbor cell list and a second neighbor cell list of the cell where a terminal is located; obtaining a cell reselection list according to the first neighbor cell list and the second neighbor cell list. The method of the present invention solves the problem in the prior art that a cell reselection list can only be acquired in a single way, and improves terminal user experience.

Description

The present invention relates to the field of communications, and in particular, to a method and a terminal for acquiring a cell reselection list. BACKGROUND With the development of communication technologies, the application of mobile terminals is more and more widespread, and the communication networks of mobile operators are also developing rapidly. The access processing of mobile terminals and networks may cause a series of problems, especially mobile. When the terminal is moving, cell reselection will occur to ensure the continuity of communication; and the smoothness of the handover and the continuity of communication when the mobile terminal is reselected largely determine the performance of the terminal and directly affect the performance. The user experience. According to the 3GPP protocol TS23.122, after the mobile terminal selects a certain cell as the current serving cell, if the cell level signal does not change much, the mobile terminal will camp on the cell, after which, In order to ensure continuous and high-quality services, the mobile terminal will measure the network environment in which it is located, including the cell where the mobile terminal is located and the neighboring cell, and when the cell reselection condition is met, the mobile terminal will reselect the quality of service and / or a cell with better signal strength. Currently, the mobile terminal acquires the communication parameters of the neighboring cell through the system information in the network broadcast message, and the mobile terminal further maintains the neighbor cell list for the next cell reselection service; the method for obtaining the cell reselection list is single, And it is completely dependent on the network broadcast message. In the complex network environment, the acquisition of the broadcast message system information often has some unpredictable problems. For example, if the broadcast message does not carry the SIB11 (measurement control information) message, etc., the cell weight cannot be caused. The selected problem affects the normal use and intuitive experience of the user. For example, when the terminal is used in the mobile process, the network changes are complicated. In this case, if there is no terminal in the neighbor cell list fed back by the network broadcast message, In the cell, the network will be dropped, which is extremely unfavorable for the user's data transmission. Therefore, the method for obtaining a cell reselection list can solve the problem that the method for obtaining a cell reselection list in the prior art is single and relies too much on the network broadcast message, which is a technical problem to be solved by those skilled in the art. SUMMARY OF THE INVENTION The present invention provides a method for acquiring a cell reselection list and a terminal, which solves the problem that the method for obtaining a cell reselection list in the prior art is too singular. The present invention provides a method for obtaining a cell reselection list. In an embodiment, the method includes: obtaining, by using different manners, a first neighbor cell list and a second neighbor cell list of a cell where the terminal is located; The second neighbor cell list gets a cell reselection list. Further, in the cell reselection list obtaining method provided by the foregoing embodiment, the step of acquiring the first neighboring cell list of the cell where the terminal is located includes: acquiring, by the terminal, communication parameters of the neighboring cell of the cell in which the cell is located, and generating a first neighboring cell list, The communication parameters include the cell number of the neighboring cell and its signal strength value. Further, the cell reselection list obtaining method provided by the foregoing embodiment further includes: determining, by the terminal, whether a signal value change value of the cell in which the cell is located is greater than a preset change threshold, and if yes, acquiring a communication parameter of a neighboring cell of the cell in which the cell is located, and generating the first A list of neighboring cells. Further, in the cell reselection list obtaining method provided by the foregoing embodiment, the step of acquiring the second neighboring cell list of the cell where the terminal is located is specifically: the terminal receives the neighbor cell list sent by the communication base station of the cell in which the cell is located, according to each The measurement control information of the neighboring cell obtains the communication parameters of each neighboring cell, and generates a second neighbor cell list according to the neighboring cell list and the communication parameters of each neighboring cell. Further, in the cell reselection list obtaining method provided by the foregoing embodiment, the step of obtaining the cell reselection list according to the first neighboring cell list and the second neighboring cell list is specifically: comparing the first neighboring cell list and the second neighboring cell The acquisition time of the cell list is used as a cell reselection list for the neighbor cell list corresponding to the latest acquisition time; or the aggregation or intersection of the first neighbor cell list and the second neighbor cell list is generated to generate a cell reselection list. In addition, the present invention further provides a terminal. In an embodiment, the terminal includes a list obtaining module and a list generating module, where the list obtaining module is configured to obtain a first neighboring cell list and a cell of the cell where the terminal is located in different manners. a neighboring cell list; the list generating module is configured to obtain a cell reselection list according to the first neighboring cell list and the second neighboring cell list. Advantageous Effects of the Invention: The cell reselection list obtaining method and the terminal provided by the present invention respectively obtain the first and second neighboring cell lists in different manners, and obtain a cell reselection list according to the two lists, thereby solving the prior art. The method for obtaining the cell reselection list is too singular; the terminal automatically acquires the communication parameters of the neighboring cell of the cell in which the cell is located and generates the first neighbor cell list, which solves the problem that the cell reselection list acquisition method existing in the prior art completely depends on the system. The issue of broadcast messages enhances the end user experience. 1 is a schematic diagram of a method for acquiring a cell reselection list according to an embodiment of the present invention; FIG. 2 is a schematic diagram of a terminal according to an embodiment of the present invention; and FIG. 3 is a cell reselection according to an application example of the present invention. Schematic diagram of the list acquisition method. The cell reselection list obtaining method provided by the present invention can be applied to all the terminals having the cell reselection function, and is preferably applied to a smart terminal such as a mobile phone. The following uses a smart phone as an example for description. The present invention will now be further illustrated by way of specific embodiments in conjunction with the accompanying drawings. FIG. 1 is a schematic diagram of a method for acquiring a cell reselection list according to an embodiment of the present invention. As shown in FIG. 1 , in this embodiment, a method for acquiring a cell reselection list for terminal cell reselection provided by the present invention includes the following steps. :

S101: Obtain a first neighbor cell list and a second neighbor cell list of a cell where the terminal is located in different manners. In the present invention, the first neighboring cell list and the second neighboring cell list are the neighboring cell lists that are obtained by the terminal in different manners, and specifically: in one embodiment, the step of acquiring the first neighboring cell list of the cell where the terminal is located The method includes: the terminal acquires communication parameters of a neighboring cell of a cell in which the cell is located, and generates a first neighbor cell list, where the communication parameter includes a cell number of the neighboring cell and a signal strength value thereof. In another embodiment, the terminal acquires the communication parameters of the neighboring cell of the cell in which the cell is located and generates the first neighbor cell list. The method further includes the following steps: the terminal determines whether the signal value change value of the cell in which the cell is located is greater than a preset change threshold; If yes, obtain communication parameters of neighboring cells of the cell in which the cell is located and generate a first neighbor cell list. In this embodiment, the preset change threshold is used as a trigger condition. It can be foreseen that in other embodiments, the trigger condition may be that an acquisition period is set, and the terminal periodically acquires the first neighboring cell of the cell in which the cell is located. The triggering condition may also be that the terminal user operates the terminal, and the control terminal acquires the first neighboring cell list of the cell in which it is located. In an embodiment, the step of acquiring the second neighboring cell list of the cell where the terminal is located is specifically: the terminal receives the neighbor cell list sent by the communication base station of the cell in which the cell is located, and obtains the neighboring cell according to the measurement control information of each neighboring cell. The communication parameter generates a second neighbor cell list according to the neighbor cell list and the communication parameters of each neighboring cell. S102: Obtain a cell reselection list according to the first neighbor cell list and the second neighbor cell list. The method for obtaining a cell reselection list by the terminal according to the first neighboring cell list and the second neighboring cell list is various. In the two preferred embodiments of the present invention, the details are as follows: In an embodiment, according to the first neighboring cell The step of obtaining the cell reselection list by the list and the second neighboring cell list is specifically: comparing the acquisition times of the first neighboring cell list and the second neighboring cell list, and using the neighbor cell list corresponding to the latest acquiring time as the cell reselection list; For example, the acquisition time of the first neighboring cell list is T1, the acquisition time of the second neighboring cell list is Τ2, and the terminal needs to perform cell reselection at time Τ3, and the sequence of each moment is assumed to be: Tl, Τ2, Τ3, Then, the cell reselection list according to the cell reselection at the time of the Τ3 is the second neighbor cell list, and the method for generating the cell reselection list guarantees the real-time performance of the cell reselection list. In another embodiment, the step of obtaining the cell reselection list according to the first neighboring cell list and the second neighboring cell list is specifically: acquiring a union of the first neighboring cell list and the second neighboring cell list, and generating a cell reselection list For example, the first neighboring cell list includes cells 1, 2, 3, and 4, and the second neighboring cell list includes cells 1, 3, 4, and 5, then the cell reselection according to the terminal when performing cell reselection The list is a cell reselection list including cells 1, 2, 3, 4, 5. This method of generating a cell reselection list guarantees the comprehensiveness of the cell reselection list. In another embodiment, the step of obtaining a cell reselection list according to the first neighboring cell list and the second neighboring cell list is specifically: acquiring an intersection of the first neighboring cell list and the second neighboring cell list, and generating a cell reselection list; For example, the first neighboring cell list includes cells 1, 2, 3, and 4, and the second neighboring cell list includes cells 1, 3, 4, and 5, and then, the cell reselection list according to the terminal when performing cell reselection The cell reselection list includes cells 1, 3, and 4. This method of generating a cell reselection list guarantees the accuracy of the cell reselection list. 2 is a schematic diagram of a terminal according to an embodiment of the present invention; as shown in FIG. 2, in the embodiment, the terminal 2 provided by the present invention includes a list obtaining module 21 and a list generating module 22, wherein the list obtaining module 21 is configured to The first neighbor cell list and the second neighbor cell list of the cell where the terminal 2 is located are obtained in different manners. The list generation module 22 is configured to obtain a cell reselection list according to the first neighbor cell list and the second neighbor cell list. In other embodiments, the list obtaining module 21 in the embodiment shown in FIG. 2 includes a first acquiring submodule, where the first acquiring submodule is configured to acquire communication parameters of neighboring cells of the cell in which the cell is located and generate a first neighbor cell list, and the communication is performed. The parameters include the cell number of the neighboring cell and its signal strength value. In other embodiments, the list obtaining module 21 in the foregoing embodiment further includes a determining submodule, where the determining submodule is configured to determine whether the value of the signal value of the cell is greater than a preset change threshold, and if so, triggering the first acquiring Module. In other embodiments, the list obtaining module 21 in the foregoing embodiment further includes a second acquiring submodule, where the second acquiring submodule is configured to receive a neighboring cell list sent by the communication base station of the cell in which the cell is located, according to the neighboring cells. The measurement control information obtains communication parameters of each neighboring cell, and generates a second neighbor cell list according to the neighbor cell list and the communication parameters of each neighboring cell. In other embodiments, the list generation module 22 in the embodiment shown in FIG. 2 is specifically configured to compare the acquisition times of the first neighboring cell list and the second neighboring cell list, and use the neighbor cell list corresponding to the latest acquisition time as the cell. Reselecting the list; or, configured to take a union or intersection of the first neighbor cell list and the second neighbor cell list to generate a cell reselection list. The present invention is further explained in conjunction with a specific application example. In this application example, the following assumptions are made: The trigger condition for the terminal to obtain the first neighbor cell list is a preset change threshold, and is generated according to the first and second neighbor cell lists. Figure 3 is a schematic diagram of a method for obtaining a cell reselection list according to an application example of the present invention. As shown in FIG. 3, in the application example, the cell reselection provided by the present invention is provided. The list acquisition method includes the following steps:

S301: The terminal registers with the cell. The step includes: starting the terminal, performing a series of initialization actions, reading SIM information, phone book information, etc.; the terminal initiates PLMN selection and camps on a certain network; through band scanning and signal search, the terminal selects the PLMN. A cell resides on the cell; after the cell selection is completed, the terminal initiates a location update request to the network, and then the network responds to the location update accept, and finally completes the network registration process.

S302 and S303: When the terminal detects that the change value of the signal strength value of the cell in which the cell is expired is greater than the preset change threshold, the terminal actively detects and acquires the communication parameters of the neighboring cell of the cell in which the cell is located, and generates a first neighbor cell list. For example, if the change value of the signal strength value of the cell where the terminal is located is greater than the change threshold, the terminal initiates a process of acquiring the communication parameters of the neighboring cell of the cell in which the cell is located, to generate a first neighbor cell list. The communication parameters in this embodiment include the cell primary scrambling code PSC of each cell, the communication network PLMN to which the cell belongs, the cell number CELL ID, the location area identifier LAC, and the cell signal strength value; wherein, for the WCDMA cell, the signal strength value Take RSCP and ECIO. For GSM cells, the signal strength value takes RSSI. Table 1 below exemplarily shows the contents of the first neighbor cell list, as follows:

Table 1

S304 and S305: The terminal receives the system broadcast information that is periodically sent, and obtains the second neighbor cell list according to the system broadcast information. Specifically, the step may be: the terminal obtains a system broadcast message periodically sent by the system base station that is received by the system base station that is received on the BCCH (Broadcast Control Channel) channel, and obtains a neighbor cell list and SIB11 information of the cell in which the cell is located, and extracts the information according to the SIB11 information. The neighboring cell frequency point configuration required for cell reselection is performed, and the configured neighboring cell frequency BCCH carrier is monitored, and the communication parameters of each neighboring cell are obtained by decoding the six strongest BCCH carrier information, according to the neighboring cell list and The communication parameters of each neighboring cell generate a second neighbor cell list. Table 2 below gives an example of the contents of the second neighbor cell list, as follows:

Table 2

S306: Generate a cell reselection list according to the first and second neighboring cell lists. If the terminal needs to initiate cell reselection at the time of "15:40:00 on June 8, 2013", the present invention provides three generation methods, which are respectively described separately; in practical applications, the terminal can select according to actual conditions. A cell reselection list is generated to generate a cell reselection list: Method 1: Comparing the acquisition times of the first neighbor cell list and the second neighbor cell list, the neighbor cell list corresponding to the latest acquisition time is used as a cell reselection list, Table 3 below gives an example of the contents of the cell reselection list generated by this method: table 3

Method 2: Take a union of the first neighbor cell list and the second neighbor cell list to generate a cell reselection list. Table 4 below exemplarily shows the content of the cell reselection list generated by the method:

Table 4

Method 3: The intersection of the first neighbor cell list and the second neighbor cell list is taken to generate a cell reselection list. Table 5 below exemplarily shows the content of the cell reselection list generated by this method:

table 5

It can be seen from the above description that the cell reselection list generated by the method 1 ensures the real-time performance of the cell reselection list, and the cell reselection list generated by the method 2 ensures the comprehensiveness of the cell reselection list, and is generated by the method 3. The cell reselection list guarantees the accuracy of the cell reselection list. Each of the three methods has its own advantages. In actual operation, the terminal may select a method to generate a cell reselection list according to actual application requirements.

S307: The terminal initiates a cell reselection operation according to the cell reselection list. Before initiating cell reselection according to the cell reselection list, the method further includes: prioritizing, according to the magnitude of the signal strength value, the cells in the cell reselection list, and sequentially trying each neighbor according to the sorted cell reselection list. The cell camps to complete cell reselection. In summary, the following beneficial effects are achieved by the implementation of the present invention: First, the first and second neighboring cell lists are separately obtained in different manners, and the cell reselection list is obtained according to the two lists, and the prior art is solved. The method for obtaining the cell reselection list is too singular. Second, the terminal automatically obtains the communication parameters of the neighboring cell of the cell in which the cell is located and generates the first neighbor cell list, which solves the problem that the cell reselection list acquisition method existing in the prior art is completely complete. Depending on the problem of the system broadcast message, the terminal user's use experience is increased. Third, when the signal value of the cell in which the cell is located changes, the terminal automatically detects the neighboring cell of the cell in which it is located, and generates a first neighbor cell list, so that the terminal The search condition can be controlled, and the terminal can flexibly set the change threshold according to the signal condition and/or communication requirement of the network in which the network is located, so as to automatically obtain the cell reselection list in time, and provide a basis for the terminal to perform cell reselection, thereby ensuring the cell reselection process. Smooth over-and-end communication quality, greatly Enhanced end-user experience. The above is only a specific embodiment of the present invention, and is not intended to limit the present invention in any way. Any simple modification, equivalent change or modification made to the above embodiments in accordance with the technical spirit of the present invention still belongs to the present technology. The scope of protection of the program.

Claims

Claim

A method for obtaining a cell reselection list, comprising:

Obtaining, by different manners, a first neighboring cell list and a second neighboring cell list of the cell where the terminal is located;

And obtaining a cell reselection list according to the first neighboring cell list and the second neighboring cell list.

2. The cell reselection list obtaining method according to claim 1, wherein the step of acquiring the first neighboring cell list of the cell in which the terminal is located includes:

The terminal acquires the communication parameters of the neighboring cell of the cell in which it is located and generates the first neighbor cell list, where the communication parameter includes the cell number of the neighboring cell and its signal strength value.

The method for acquiring a cell reselection list according to claim 2, further comprising:

The terminal determines whether the value of the signal value of the cell in which the cell is located is greater than a preset change threshold, and if so, obtains the communication parameters of the neighboring cell of the cell in which the cell is located, and generates the first neighbor cell list.

The method for acquiring a cell reselection list according to claim 2, wherein the step of acquiring the second neighbor cell list of the cell where the terminal is located is specifically:

The terminal receives the neighboring cell list sent by the communication base station of the cell in which the cell is located, obtains the communication parameters of each neighboring cell according to the measurement control information of each neighboring cell, and generates the second according to the neighboring cell list and the communication parameters of each neighboring cell. A list of neighboring cells.

The cell reselection list obtaining method according to any one of claims 1 to 4, wherein the step of obtaining a cell reselection list according to the first neighboring cell list and the second neighboring cell list is specifically Aligning the first neighboring cell list and the second neighboring cell list with the neighboring cell list corresponding to the latest acquiring time as the cell reselection list; or, taking the first neighboring cell list And combining or intersecting the second neighbor cell list to generate the cell reselection list.

A terminal, comprising: a list obtaining module and a list generating module, wherein

The list obtaining module is configured to obtain, by using different manners, a first neighboring cell list and a second neighboring cell list of a cell where the terminal is located;

The list generating module is configured to obtain a cell reselection list according to the first neighboring cell list and the second neighboring cell list. The terminal according to claim 6, wherein the list obtaining module comprises:

And a first acquiring submodule, configured to acquire a communication parameter of a neighboring cell of the cell in which the cell is located, and generate the first neighboring cell list, where the communication parameter includes a cell number of the neighboring cell and a signal strength value thereof. The terminal according to claim 7, wherein the list obtaining module further comprises:

The determining sub-module is configured to determine whether the signal value change value of the cell in the cell is greater than a preset change threshold, and if yes, trigger the first acquiring sub-module. The terminal according to claim 7, wherein the list obtaining module further comprises:

a second obtaining sub-module, configured to receive a neighbor cell list sent by the communication base station of the cell in which the cell is located, and obtain communication parameters of each neighboring cell according to the measurement control information of each neighboring cell, according to the neighbor cell list and each neighboring cell The communication parameters generate the second neighbor cell list. The terminal according to any one of claims 6 to 9, wherein

The list generating module is configured to compare the acquisition time of the first neighboring cell list and the second neighboring cell list, and use the neighbor cell list corresponding to the latest acquiring time as the cell reselection list; or And the intersection or the intersection of the first neighboring cell list and the second neighboring cell list is set to generate the cell reselection list.