WO2016082656A1

WO2016082656A1 - Method and device for mobile terminal to select a resident cell

Info

Publication number: WO2016082656A1
Application number: PCT/CN2015/093442
Authority: WO
Inventors: 程丽君
Original assignee: 中兴通讯股份有限公司
Priority date: 2014-11-28
Filing date: 2015-10-30
Publication date: 2016-06-02
Also published as: CN105704765A

Abstract

Disclosed are a method and device for a mobile terminal to select a resident cell, the method comprising: a mobile terminal real-time monitors cell service attribute information broadcasted by a mobile network in the mobile network of a service division carrier or division system deployment; the mobile terminal determines whether the type of the terminal thereof matches the cell service attribute according to the monitored cell service attribute information; and the mobile terminal selects a cell matching the type of the terminal thereof as a target cell according to the determining result and resides in the target cell.

Description

Method and device for selecting cell resident by mobile terminal

Technical field

The present application relates to, but is not limited to, the field of wireless communication technologies, and in particular, to a method and apparatus for selecting a cell to camp on a mobile terminal.

Background technique

UMTS (Universal Mobile Telecommunications System) mobile network uses multiple carrier frequencies to cover the same area. In order to avoid the impact of data services on voice services, the carrier layer strategy of service layering is usually adopted, that is, the most widely used one is selected. The carrier frequency carries voice services, and other carrier frequencies mainly carry data services. In the previous versions of the 3GPP protocol R8, in the UMTS and GSM (Global System for Mobile Communications) networks, the cell selection and reselection of the idle state terminal is based on the cell wireless signal quality ranking method, in order to achieve the above group. The network strategy, the carrier frequency carrying the voice will be configured with a large quality offset. This bias makes the carrier frequency carrying the voice always the best one when performing cell selection and reselection quality ordering in the idle state terminal. In this way, the terminal in the idle state resides in the carrier frequency, and the voice service is carried on the carrier frequency, and the data service needs to do a different frequency and no measurement migration, and migrate to the carrier frequency carrying the data. The parameters of cell selection and reselection are all provided in the cell broadcast information, and the terminal receives. This means that all terminals need to comply with the principle of cell selection and reselection, so all idle terminals in the network will reside in the carrier frequency carrying the voice. With the development of the mobile Internet and the Internet of Things, many new types of mobile network terminals have emerged, such as tablet computers, MTC (Machine Type Communications) devices. In these new types of terminals, only the data packet service can be performed in the data domain. If the service is deployed in the network where the above policy is deployed, a different frequency point and no measurement migration must be performed, and there is a service drop call. risk.

In the R8 version of the protocol, 3GPP introduces different carrier frequencies and inter-standard cell selection and reselection mechanisms based on priorities. The high-priority carrier frequency/standard system selects the high-priority carrier frequency as long as the minimum access quality requirements are met. / System resides. There are two priorities here, one is the broadcast priority, that is, the broadcast in the cell system information, all terminals will receive. The other is dedicated priority, wireless The access network is only sent to a specific terminal through a dedicated message of RRC. The 3GPP specifies that as long as the terminal receives the dedicated priority and within the dedicated priority aging, the terminal uses the dedicated priority and the broadcast priority is ignored. In this way, the network can implement a carrier frequency control policy that distinguishes user categories or terminal types through dedicated priorities. However, only 3GPP R8 and higher terminals support dedicated priority, and in order to be compatible with legacy terminals, the UMTS and GSM cell selection and reselection mechanisms are used in the UMTS. . Therefore, terminals that only support data domain services still need to undergo migration between different carrier frequencies.

Although the UMTS system provides the service domain supported by the cell in the "CN information elements" of the system information block 1 of the cell system information, if the cell only indicates the PS (Packet Switch) domain according to the protocol, the terminal cannot The cell is normally relocated because the terminal cannot perform the registration process such as location update of the CS (Circuit Switch) domain, and the data card, tablet, and MTC cannot reside.

Summary of the invention

The following is an overview of the topics detailed in this document. This Summary is not intended to limit the scope of the claims.

The present invention provides a method and a device for selecting a cell camping in a mobile terminal, and solving the related art in a network with multiple carrier frequency or multi-standard service layering strategy, only the terminal supporting the data service, the inter-frequency when the service is established or The problem of different system migration.

A method for a mobile terminal to select a cell camping, comprising:

In a mobile network in which the service is divided into a carrier frequency or a distributed system, the mobile terminal monitors the cell service attribute information of the mobile network broadcast in real time;

The mobile terminal determines whether the terminal type matches the cell service attribute according to the cell service attribute information that is monitored;

The mobile terminal selects a cell that matches its terminal type as the target cell according to the judgment result, and camps on the target cell.

Optionally, the cell service attribute information includes:

Single CS domain service and dual domain service of CS domain and PS domain.

Optionally, the terminal type includes a voice terminal type and a non-voice terminal type.

Optionally, the determining, by the mobile terminal, whether the terminal type matches the cell service attribute according to the cell service attribute information that is monitored includes:

The mobile terminal establishes a cell selection and reselection evaluation table according to the terminal type and its matched cell service attribute information;

The mobile terminal determines whether the terminal type matches the cell service attribute according to the established cell selection and reselection evaluation table.

Optionally, the mobile terminal selects, according to the determination result, a cell that matches the terminal type as the target cell, and camps on the target cell, and when the mobile terminal determines that the terminal type matches the cell service attribute, Then, the cell matching the terminal type is selected as the target cell and camped on the target cell;

When the mobile terminal judges that its terminal type does not match the cell service attribute, no operation is performed.

A device for selecting a cell to camp on a mobile terminal, comprising:

The monitoring module is configured to: in real time monitor the cell service attribute information of the mobile network broadcast in the mobile network of the service subcarrier or the distributed system;

The judging module is configured to: according to the cell service attribute information monitored, determine whether the terminal type matches the cell service attribute;

The camping module is configured to: according to the judgment result, select a cell that matches the terminal type as the target cell, and camp on the target cell.

Optionally, the cell service attribute information includes:

Single CS domain service and dual domain service of CS domain and PS domain.

Optionally, the determining module includes:

The establishment unit is configured to: establish a cell selection and reselection evaluation table according to the terminal type and its matching cell service attribute information:

The judging unit is configured to: judge the terminal according to the established cell selection and reselection evaluation table Whether the type matches the cell service attribute.

Optionally, the resident module includes:

a camping unit, configured to: when the judging module judges that the terminal type matches the cell service attribute, the cell matching the terminal type is selected as the target cell, and camps on the target cell;

The non-resident unit is set to: when the judging module judges that the terminal type does not match the cell service attribute, no operation is performed.

A computer readable storage medium storing computer executable instructions for performing the method of any of the above.

The embodiment of the present invention selects a cell service that can be supported according to the type of the terminal, and avoids the call drop in the service access process, thereby improving the success rate of service establishment.

Other aspects will be apparent upon reading and understanding the drawings and detailed description.

BRIEF abstract

FIG. 1 is a flowchart of a method for a mobile terminal to select a cell camp according to an embodiment of the present invention;

2 is a schematic diagram of a device for selecting a cell to camp on a mobile terminal according to an embodiment of the present invention;

3 is a first flowchart of a mobile terminal selecting a network carrier frequency resident method according to an embodiment of the present invention;

4 is a second flowchart of a method for camping a mobile terminal to select a cell according to an embodiment of the present invention;

FIG. 5 is a third flowchart of a method for camping a mobile terminal to select a cell according to an embodiment of the present disclosure;

6 is a structural block diagram of a mobile terminal according to an embodiment of the present invention;

FIG. 7 is a structural block diagram of a control system for selecting a cell camping by a mobile terminal according to an embodiment of the present invention.

Embodiments of the invention

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 is a flowchart of a method for selecting a cell to camp on a mobile terminal according to an embodiment of the present invention. As shown in FIG. 1 , the method includes the following steps:

Step S101: The mobile terminal monitors the cell service attribute information of the mobile network broadcast in real time in the mobile network deployed in the service carrier frequency or the split mode;

Step S102: The mobile terminal determines, according to the monitored cell service attribute information, whether the terminal type matches the cell service attribute.

Step S103: The mobile terminal selects a cell that matches its terminal type as the target cell according to the judgment result, and camps on the target cell.

The cell service attribute information includes: a single CS domain service and a dual domain service of the CS domain and the PS domain. The terminal types include a voice terminal type and a non-voice terminal type.

The mobile terminal determines whether the terminal type matches the cell service attribute according to the monitored cell service attribute information, and the mobile terminal establishes a cell selection and reselection evaluation table according to the terminal type and the matched cell service attribute information. The mobile terminal determines whether the terminal type matches the cell service attribute according to the established cell selection and reselection evaluation table.

The mobile terminal selects a cell that matches its terminal type as the target cell according to the judgment result, and camps on the target cell includes: when the mobile terminal determines that the terminal type matches the cell service attribute, the mobile terminal and the terminal thereof The cell whose type matches is selected as the target cell and camps on the target cell; when the mobile terminal determines that its terminal type does not match the cell service attribute, no operation is performed.

2 is a schematic diagram of a device for selecting a cell to camp on a mobile terminal according to an embodiment of the present invention. As shown in FIG. 2, the method includes: a monitoring module 201, a determining module 202, and a resident module 203. The monitoring module 201 is configured to monitor the cell service attribute information of the mobile network broadcast in real time in the mobile network where the service is divided into the carrier frequency or the distributed system. The determining module 202 is configured to: according to the monitored cell service Attribute information, determining whether the terminal type matches the cell service attribute; the resident module 203 is configured to: select, according to the determination result, a cell that matches the terminal type as the target cell, and camp on the target cell . Wherein the cell service attribute letter The information includes: single CS domain service and dual domain service of CS domain and PS domain. The terminal types include a voice terminal type and a non-voice terminal type. The determining module 202 includes: an establishing unit, configured to: establish a cell selection and reselection evaluation table according to the terminal type and the matched cell service attribute information; the determining unit is configured to: select and reselect according to the established cell The evaluation table determines whether the terminal type matches the cell service attribute.

FIG. 3 is a first flowchart of a method for selecting a network carrier frequency of a mobile terminal according to an embodiment of the present invention. As shown in FIG. 3, the method includes the following steps:

Step S301, the network side sends cell service attribute information to the mobile terminal.

The network side may send the foregoing information, that is, the cell service attribute information, by using the system information. At this time, the mobile terminal acquires the foregoing information by listening to the system message.

Step S302: The mobile terminal compares the cell service attribute information sent by the network side according to the terminal type information stored in the mobile terminal device.

The terminal type is used to indicate whether the mobile terminal can support the CS domain voice service, and the cell service attribute information is used to indicate the service domain carried by the cell. The cell service attribute information includes: a single CS domain service, a CS domain, and a PS domain dual domain service. The terminal type information includes: a voice class, a non-voice class.

The mobile terminal in this step may include the following information according to the service capability information supported by the mobile terminal and the cell service attribute information sent by the network side: 1) the mobile terminal monitors system information sent by the network, and the system information carries the cell service attribute. 2) The mobile terminal determines its own terminal type according to the terminal type information stored in its own storage unit; 3) The mobile terminal determines whether it can support the service indicated by the service attribute information of the cell.

Step S303, in the cell selection and reselection evaluation, the mobile terminal only evaluates the cell whose service attribute matches the above terminal type. The principle of whether the different terminal types put the cell into the evaluation list of cell selection and reselection according to the cell service attribute is as shown in Table 1 below.

Table 1: Evaluation list for cell selection and reselection

FIG. 4 is a second flowchart of a method for camping a mobile terminal to select a cell according to an embodiment of the present invention. As shown in FIG. 4, the implementation on the UMTS system is taken as an example for description. The UMTS network deploys multiple carrier frequencies in a region to continuously cover the area. One carrier frequency is used to provide voice services, and the other carrier frequencies mainly bear data services. For the cell carrying the voice carrier of the voice service, the cell service attribute is set to a single CS domain service; the cell carrying the data carrier frequency, the cell service attribute is set to the CS domain and the PS domain dual domain service; when the mobile terminal performs cell selection and reselection evaluation The cell selection and reselection evaluation will be performed only when the service attribute of the cell matches the service capability supported by the terminal type. Includes the following steps:

Step S401, the network side sends cell service attribute information to the mobile terminal.

The network side may send the foregoing information, that is, cell service attribute information, by using system information. The mobile terminal acquires the above information by monitoring system information.

The cell service attribute information sent by the cell carrying the voice service indicates a single CS domain service; the cell service attribute information sent by the cell carrying the data service indicates the CS domain and the PS domain dual domain service.

Step S402: The mobile terminal receives the cell service attribute information from the network side, and according to the terminal type information of the terminal, and according to the service attribute information of the cell, determines whether a cell can be placed in the cell list for cell selection and reselection evaluation.

The mobile terminal determines whether a cell can be placed in the list of cell selection and reselection evaluation. In this embodiment, the criterion is as follows:

Step S403: The terminal type is a voice type terminal, and the cell with the service type of the single CS domain service and the CS domain and the PS domain dual domain service is put into the cell list for cell selection and reselection evaluation, that is, the voice cell and the non-voice cell. Perform an assessment of cell selection and reselection.

Step S404: The terminal type is a non-voice type terminal, and the cell with the service type of the single CS domain service is not put into the cell list for cell selection and reselection evaluation, and only the service type is the CS domain and the PS domain dual domain service. The cell performs an evaluation of cell selection and reselection, that is, evaluation of cell selection and reselection only for non-voice cells.

FIG. 5 shows a third flow of a method for camping a mobile terminal to select a cell according to an embodiment of the present invention. The process diagram, as shown in FIG. 5, is described by taking an implementation on a UMTS system as an example. The UMTS network deploys multiple carrier frequencies in one area to cover the area, one of which covers the entire area; the other carrier frequency covers part of the area. Covering the carrier frequency of all areas, in the other carrier frequency coverage area, only the voice service is provided, and the service attribute is set to a single CS domain service; in the area without other carrier frequency coverage, the carrier frequency carries the voice service and carries the data service. The service attribute is set to the dual domain service of the CS domain and the PS domain. The carrier frequency of a part of the area is mainly used to carry data services, and the service attributes are set to dual domain services of the CS domain and the PS domain. Includes the following steps:

Step S501, the network side sends cell service attribute information to the mobile terminal.

The cell service attribute information sent by the cell carrying the voice service indicates a single CS domain service; the cell carrying the data service, and the cell carrying the voice also carries the data, and the sent cell service attribute information indicates the CS domain and the PS domain dual domain service.

Step S502: The mobile terminal receives the cell service attribute information from the network side, and according to the terminal type information of the mobile terminal, and according to the service attribute information of the cell, determines whether a cell can be used as a cell list for cell selection and reselection evaluation.

The mobile terminal determines whether a cell can be used as a cell selection and reselection evaluation target cell. In this embodiment, the criterion is as follows:

Step S503: The terminal type is a voice type terminal, and the cell with the service attribute being the single CS domain service and the CS domain and the PS domain dual service is put into the cell list for cell selection and reselection evaluation.

Step S504: The terminal type is a non-voice type terminal, and the cell with the service attribute being a single CS domain is not put into the cell list for cell selection and reselection evaluation, and only the cell of the service attribute CS domain and the PS domain dual service cell is performed. Evaluation of selection and reselection.

FIG. 6 is a structural block diagram of a mobile terminal according to an embodiment of the present invention. As shown in FIG. 6, the mobile terminal includes: a receiving module 601, a type storage module 602, and a cell selection and reselection cell list building module 603. The receiving module 601 is configured to receive cell service attribute information sent by the network side, where the cell service attribute information indicates a service domain supported by the cell, where the service domain supported by the cell includes: a single CS domain service, CS Domain and PS domain dual domain services. The type The storage module 602 is configured to store the type of the terminal in the mobile terminal device, where the terminal type information indicates whether the mobile terminal has a CS domain voice service capability, where the mobile terminal CS domain voice service capability indication includes: a voice class terminal, Voice class terminal. The cell selection and reselection cell list construction module 603, when the cell selects and reselects, identifies the service provided by the cell according to the terminal type stored in the type storage module 602 and the cell service attribute information received from the network. Whether the mobile terminal can support it.

FIG. 7 is a structural block diagram of a control system for selecting a cell to camp on a mobile terminal according to an embodiment of the present invention. As shown in FIG. 7, the network side device 701 and the mobile terminal 702 are included, and the mobile terminal 702 can move according to the foregoing FIG. The terminal implementation is not described here. The network side device 701 includes: a sending module, configured to send cell service attribute information to the mobile terminal 702. The mobile terminal compares the cell service attribute broadcasted by the network side with the terminal type to which it belongs, and selects only the cell whose cell service attribute matches its own terminal type, and performs cell selection and reselection evaluation.

The mobile terminal of the present embodiment does not evaluate the cell that provides the service that cannot be supported according to whether it has the CS domain voice service capability, and solves the problem in the network in which the multi-carrier frequency service is deployed hierarchically. When the mobile terminal establishes the PS domain data service, the inter-frequency point or the different system migration must be performed to avoid the call drop in the service access process, and the success rate of the service establishment is improved.

In the embodiment of the present invention, the mobile terminal selects the cell service camping that can be supported according to the type of the mobile terminal, thereby solving the dropped call caused by the migration between the inter-frequency and the different systems in the network of the carrier-splitting/splitting system of the service. .

One of ordinary skill in the art will appreciate that all or a portion of the steps of the above-described embodiments can be implemented using a computer program flow, which can be stored in a computer readable storage medium, such as on a corresponding hardware platform (eg, The system, device, device, device, etc. are executed, and when executed, include one or a combination of the steps of the method embodiments.

Alternatively, all or part of the steps of the above embodiments may also be implemented by using an integrated circuit. These steps may be separately fabricated into individual integrated circuit modules, or multiple modules or steps may be fabricated into a single integrated circuit module. achieve.

The device/function module/functional unit in the above embodiments may be implemented by using a general-purpose computing device, which may be concentrated on a single computing device or distributed in multiple computing devices. On the network.

When the device/function module/functional unit in the above embodiment is implemented in the form of a software function module and sold or used as a stand-alone product, it can be stored in a computer readable storage medium. The above mentioned computer readable storage medium may be a read only memory, a magnetic disk or an optical disk or the like.

Industrial applicability

Claims

A method for a mobile terminal to select a cell camping, comprising:

In a mobile network in which the service is divided into a carrier frequency or a distributed system, the mobile terminal monitors the cell service attribute information of the mobile network broadcast in real time;

The mobile terminal determines whether the terminal type matches the cell service attribute according to the cell service attribute information that is monitored;

The mobile terminal selects a cell that matches its terminal type as the target cell according to the judgment result, and camps on the target cell.
The method of claim 1, wherein the cell service attribute information comprises:

Single-circuit switched CS domain service and dual domain service of CS domain and packet switched PS domain.
The method of claim 1, wherein the terminal type comprises a voice terminal type and a non-voice terminal type.
The method according to claim 1, wherein the mobile terminal determines whether the terminal type matches the cell service attribute according to the monitored cell service attribute information, including:

The mobile terminal establishes a cell selection and reselection evaluation table according to the terminal type and its matched cell service attribute information;

The mobile terminal determines whether the terminal type matches the cell service attribute according to the established cell selection and reselection evaluation table.
The method according to claim 4, wherein the mobile terminal selects a cell that matches its terminal type as a target cell according to the judgment result, and camps on the target cell includes:

When the mobile terminal determines that the terminal type matches the cell service attribute, the cell matching the terminal type is selected as the target cell and camped on the target cell;

When the mobile terminal judges that its terminal type does not match the cell service attribute, no operation is performed.
A device for selecting a cell to camp on a mobile terminal, comprising:

The monitoring module is set to: in the mobile network where the service is divided into carrier frequency or distributed system, real-time monitoring Listening to the cell service attribute information of the mobile network broadcast;

The determining module is configured to: determine, according to the cell service attribute information, whether the terminal type matches the cell service attribute;

The camping module is configured to: according to the judgment result, select a cell that matches the terminal type as the target cell, and camp on the target cell.
The apparatus of claim 6, wherein the cell service attribute information comprises:

Single CS domain service and dual domain service of CS domain and PS domain.
The apparatus of claim 6, wherein the terminal type comprises a voice terminal type and a non-voice terminal type.
The apparatus of claim 6, wherein the determining module comprises:

Establishing a unit, configured to: establish a cell selection and reselection evaluation table according to the terminal type and the matching cell service attribute information;

The determining unit is configured to: determine, according to the established cell selection and reselection evaluation table, whether the terminal type matches the cell service attribute.
The apparatus of claim 9 wherein said resident module comprises:

a camping unit, configured to: when the judging module judges that the terminal type matches the cell service attribute, the cell matching the terminal type is selected as the target cell, and camps on the target cell;

The non-resident unit is set to: when the judging module judges that the terminal type does not match the cell service attribute, no operation is performed.
A computer readable storage medium storing computer executable instructions for performing the method of any of claims 1-5.