WO2014101198A1

WO2014101198A1 - Cell reselection method and device

Info

Publication number: WO2014101198A1
Application number: PCT/CN2012/088072
Authority: WO
Inventors: 肖登坤; 张涛; 王融; 法夫子⋅范尼
Original assignee: 华为技术有限公司
Priority date: 2012-12-31
Filing date: 2012-12-31
Publication date: 2014-07-03
Also published as: CN104041116A

Abstract

Provided in an embodiment of the present invention are a cell reselection method and device, the method comprising: determining whether to generate a cell reselection triggering condition according to the current service attribute of a mobile station (101); and determining a new cell based on a preset cell reselection rule when the cell reselection triggering condition is generated (102). The cell reselection method and device provided in the embodiment of the present invention determine a cell reselection triggering condition and in turn determine a new cell according to the current service attribute of a mobile station, thus reducing the frequency of cell reselection conducted by a mobile station when multi-RATs coexist, and in turn reducing the power consumption of the mobile station.

Description

Method and device for realizing cell reselection

The present invention relates to a wireless network technology, and in particular, to a method and an apparatus for implementing cell reselection. Background technique

With the development of the communication industry, the future development trend of wireless communication networks is the coexistence of multiple communication systems. For example, with the commercialization of the 4G communication standard-Long Term Evolution (LTE), there will be a Global System for Mobile Communications (GSM) (2G) and a wide-band code. The (Wideband Code Division Multiple Access; hereinafter referred to as: WCDMA) (3G) and LTE (4G) three radio access technologies (Radio Access Technology; hereinafter referred to as RAT) coexist.

The cell reselection technology faces new challenges in the existing multiple radio access technology (Multi-RAT) scenarios. When the mobile station selects a cell as the current serving cell, the mobile station will camp in the selected cell if the various conditions change little. When the mobile station moves across the cell, or the cell signal quality and signal strength change due to other factors, the mobile station performs cell reselection, that is, selects a new cell to update the current serving cell among different radio access technologies.

However, in the existing multiple radio access technology scenarios, different radio access technologies have different characteristics, and the cell that the mobile station accesses based on the cell reselection principle cannot match its own service characteristics, so often leads to The number of cell reselections increases, increasing the power consumption of the mobile station. Summary of the invention

Embodiments of the present invention provide a method and an apparatus for implementing cell reselection to reduce the number of times a mobile station performs cell reselection.

A first aspect of the embodiments of the present invention provides a method for implementing cell reselection, including: determining, according to a current service attribute of a mobile station, whether a trigger condition for cell reselection is generated; when generating a trigger condition for cell reselection, based on The set cell reselection rule determines a new cell. In a first possible implementation manner of the first aspect, according to the current service attribute of the mobile station The trigger conditions for determining whether to generate cell reselection include:

If the signal of the high priority cell of the current serving cell satisfies the requirement, and the current service attribute of the mobile station does not match the service attribute of the current serving cell, a trigger condition for cell reselection is generated;

If the signal of the high priority cell of the current serving cell satisfies the requirement, the current service attribute of the mobile station matches the service attribute of the current serving cell, and the signal of the current serving cell does not meet the requirement, a trigger condition for cell reselection is generated;

When the mobile station's camping time in the current serving cell exceeds the set time threshold, and the current service attribute of the mobile station does not match the service attribute of the current serving cell, a trigger condition for cell reselection is generated.

With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the signal that meets the requirements of the high priority cell includes:

The signal quality of the cell of the EUTRAN or UTRAN is greater than the first threshold during the first set time interval; or

The signal strength of the cell of GSM/GERAN or CDMA2000 is greater than the second threshold in the second set time interval;

The signal of the current serving cell does not meet the requirements including:

The signal strength of the current serving cell is less than the third threshold in the third set time interval.

With reference to the first aspect to the second possible implementation of the first aspect, in a third possible implementation manner of the first aspect, the method for implementing cell reselection further includes: according to a current service attribute of the mobile station, Cell selection is performed in cells of at least two radio access systems.

With reference to the third possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, performing cell selection in a cell of the at least two radio access systems according to a current service attribute of the mobile station includes: :

Accessing a corresponding wireless access system by using a wireless access function configured on the mobile station; acquiring a broadcast system message by using the accessed wireless access system, where the system message includes at least two wireless access systems Attribute information of the mobile station related cell;

Selecting a wireless access system to be accessed according to the attribute information of the related cell and the set radio access system selection rule;

In the wireless access system to be accessed, the cell selection is performed according to the cell selection rule of the wireless access system to be accessed. With reference to the fourth possible implementation manner of the first aspect, in a fifth possible implementation manner of the first aspect, the attribute information of the cell related to the mobile station in the at least two radio access systems includes: In the access system, the load, available resources, priority list, interference parameters, and recommended cell list of each cell in the vicinity of the mobile station location.

With reference to the third possible implementation manner of the first aspect, in a sixth possible implementation manner of the first aspect, performing cell selection in a cell of the at least two radio access systems according to a current service attribute of the mobile station includes: :

Accessing various corresponding wireless access systems through various wireless access functions configured on the mobile station; in various wireless access systems, performing cell selection according to cell selection rules of various wireless access systems, and obtaining multiple Selected cells;

Selecting a cell to be accessed according to the signal strength and signal quality of each candidate cell and the service attribute of the mobile station.

A second aspect of the embodiments of the present invention provides a method for implementing cell reselection, including: acquiring attribute information of surrounding cells of at least two types of radio access systems in which the location is located; broadcast transmission system information, where The system information includes attribute information of surrounding cells in at least two types of radio access systems, so that the mobile station performs cell selection in cells of at least two radio access systems according to current service attributes.

In a first specific implementation manner of the second aspect, the attribute information includes: a load, an available resource, a priority list, and an interference parameter of each cell in the vicinity of the mobile station location in each wireless access system. Recommended cell list.

A third aspect of the embodiments of the present invention provides an apparatus for implementing terminal side cell reselection, including:

a reselection triggering module, configured to determine, according to a current service attribute of the mobile station, whether a trigger condition for generating cell reselection is generated;

The cell reselection module is configured to determine a new cell based on the set cell reselection rule when a trigger condition for cell reselection is generated.

In a first possible implementation manner of the third aspect, the reselection triggering module includes: a first triggering unit, configured to: if a signal of a high priority cell of a current serving cell meets a requirement, and a current service attribute of the mobile station When the service attribute of the current serving cell does not match, a trigger condition for cell reselection is generated; a second triggering unit, configured to: if the signal of the high priority cell of the current serving cell satisfies the requirement, the current service attribute of the mobile station matches the service attribute of the current serving cell, and the signal of the current serving cell does not meet the requirement, generating a cell weight Selected trigger condition;

And a third triggering unit, configured to generate a trigger for cell reselection when the camping time of the mobile station exceeds a set time threshold in the current serving cell, and the current service attribute of the mobile station does not match the service attribute of the current serving cell condition.

With reference to the third aspect, or the first possible implementation manner of the third aspect, in the second possible implementation manner of the third aspect, the apparatus for implementing the terminal side cell reselection further includes:

And a cell selection module, configured to perform cell selection in a cell of at least two radio access systems according to a current service attribute of the mobile station.

With reference to the second possible implementation manner of the third aspect, in a third possible implementation manner of the third aspect, the cell selection module includes:

a first access unit, configured to access a corresponding wireless access system by using a wireless access function configured on the mobile station;

a first acquiring unit, configured to acquire a broadcast system message by using the accessed wireless access system, where the system message includes attribute information of a cell related to the mobile station in at least two types of wireless access systems; Selecting a wireless access system to be accessed according to the attribute information of the related cell and the set radio access system selection rule;

And a first cell selection unit, configured to perform cell selection according to a cell selection rule of the to-be-access wireless access system in the wireless access system to be accessed.

With reference to the third possible implementation manner of the third aspect, in a fourth possible implementation manner of the third aspect, the attribute information of the cell related to the mobile station in the at least two radio access systems includes: In the access system, the load, available resources, priority list, interference parameters, and recommended cell list of each cell in the vicinity of the mobile station location.

With reference to the second possible implementation manner of the third aspect, in a fifth possible implementation manner of the third aspect, the cell selection module includes:

a second access unit, configured to access, by using various wireless access functions configured on the mobile station, corresponding wireless access systems;

a second cell selection unit, configured to perform cell selection according to cell selection rules of various radio access systems in various radio access systems, to obtain multiple candidate cells; The third cell selecting unit is configured to select a cell to be accessed according to the signal strength and signal quality of each candidate cell and the service attribute of the mobile station.

A fourth aspect of the embodiments of the present invention provides an apparatus for implementing base station side cell reselection, including:

An attribute information obtaining module, configured to acquire attribute information of surrounding cells of at least two types of wireless access systems in which the location is located;

a system information sending module, configured to broadcast system information, where the system information includes attribute information of surrounding cells in at least two types of wireless access systems, so that the mobile station performs at least two types of wireless access according to current service attributes. Cell selection is performed in the cell of the system.

In a first specific implementation manner of the fourth aspect, the attribute information includes: a load, an available resource, a priority list, an interference parameter, and a usage of each cell in the vicinity of the mobile station location in the wireless access system. Recommended cell list.

The method and device for implementing cell reselection according to the embodiment of the present invention determine the triggering condition of the cell reselection by using the current service attribute of the mobile station to determine a new cell, that is, to avoid blindly triggering cell reselection when the service attribute does not match, resulting in Repeatedly switch between multiple wireless access systems. The technical solution reduces the number of times the mobile station performs cell reselection in a scenario where multiple radio access technologies coexist, thereby reducing the power consumption of the mobile station. DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description of the drawings used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any inventive labor.

1 is a flowchart of Embodiment 1 of a method for implementing J and region reselection according to the present invention;

2 is a flowchart of Embodiment 2 of a method for implementing J and region reselection according to the present invention;

3 is a flowchart of Embodiment 3 of a method for implementing J and region reselection according to the present invention;

4 is a flowchart of Embodiment 4 of a method for implementing J and region reselection according to the present invention;

5 is a cell reselection topology diagram of Embodiment 5 of a method for implementing J and region reselection according to the present invention;

6 is a flowchart of cell selection in Embodiment 6 of the method for implementing re-selection of J in the present invention; FIG. 7 is a flowchart of cell selection in Embodiment 7 of the method for implementing J-area reselection according to the present invention; FIG. 8 is a flowchart of cell selection in Embodiment 8 of a method for implementing cell reselection according to the present invention; FIG. 9 is a flowchart of cell selection in Embodiment 9 of a method for implementing cell reselection according to the present invention; FIG. 11 is a schematic structural diagram of Embodiment 11 of a device for reselecting a terminal side cell according to the present invention; FIG. 12 is a schematic structural diagram of Embodiment 12 of a device for reselecting a terminal side cell according to the present invention; FIG. 13 is a schematic structural diagram of Embodiment 13 of a device for implementing cell reselection on a terminal side according to the present invention; FIG. 14 is a schematic structural diagram of Embodiment 14 of a device for reselecting a cell on a terminal side according to the present invention; FIG. 16 is a schematic structural diagram of a mobile station according to Embodiment 16 of the present invention. FIG. 16 is a schematic structural diagram of a mobile station according to Embodiment 16 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 a partial embodiment of the invention, and not all of the 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.

FIG. 1 is a flowchart of Embodiment 1 of a method for implementing cell reselection according to the present invention. The technical solution in this embodiment is implemented by an apparatus for implementing cell reselection on a terminal side, and the implementation device may be implemented by using hardware or software, and integrated in mobile Taichung can cooperate with the base station to implement cell reselection. As shown in FIG. 1, the method for implementing cell reselection in this embodiment includes:

Step 101: Determine, according to the current service attribute of the mobile station, whether a trigger condition for cell reselection is generated.

In this step, the service attribute is characterized by a 2G, 3G, 4G or other radio access technology that matches the mobile station's own service. For example, when the mobile station's own service is a voice service, the mobile station's service attribute is 2G; When the mobile station's own service is a low-rate data service, the mobile station's service attribute is 3G. When the mobile station's own service is a high-speed data service, the mobile station's service attribute is 4G.

Step 102: When a trigger condition for cell reselection is generated, a new cell is determined based on the set cell reselection rule.

The cell reselection rule set in the above step may be any applicable cell reselection rule. The embodiment does not limit this. For example, the cell reselection rule in the prior art can be used. In the method for implementing cell reselection in this embodiment, the triggering condition of the cell reselection is determined by the current service attribute of the mobile station to determine a new cell, that is, the cell reselection is blindly triggered when the service attribute does not match, resulting in multiple wireless Switch repeatedly under the access system. The technical solution reduces the number of times the mobile station performs cell reselection in a scenario where multiple radio access technologies coexist, thereby reducing the power consumption of the mobile station.

The technical solutions of the method embodiment shown in FIG. 1 are described in detail below by using several specific embodiments.

FIG. 2 is a flowchart of Embodiment 2 of a method for implementing cell reselection according to the present invention. The embodiment is a specific implementation of the step 101 in the first embodiment of the present invention. As shown in FIG. 2, the method for implementing cell reselection in this embodiment includes:

Step 201: If the signal of the high priority cell of the current serving cell satisfies the requirement, and the current service attribute of the mobile station does not match the service attribute of the current serving cell, a trigger condition for cell reselection is generated.

The priority level of the cell is specified by the network operator. Usually the priority of 4G, 3G, 2G is sequentially decreasing. The so-called high-priority cell means that the priority of the radio access system is higher than that of the current serving cell.

Currently, the evolved Universal Terrestrial Radio Access Network (EUTRAN) cell has a service attribute of 4G; Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network; hereinafter referred to as: UTRAN), whose service attributes belong to the 3G standard, and does not include the code division multiple access (CDMA) 2000 cell; GSM/Enhanced Data Rate GSM Evolution Technology (Enhanced Data Rate for GSM Evolution, EDGE for short) GSM EDGE Radio Access Network (hereinafter referred to as GERAN), whose service attributes belong to the 2G system; CDMA2000 cells whose service attributes belong to the 3G system, specifically A cell of CDMA2000.

The current service attribute of the mobile station refers to the used 2G, 3G, 4G or other radio access technology that matches the current mobile station's own service. The current service attribute of the mobile station does not match the service attribute of the current serving cell. For example, the current mobile station uses 2G technology, and the current service If the service attribute of the cell belongs to the 3G standard, the current service attribute of the mobile station does not match the service attribute of the current serving cell, and the other cases are similar.

Specifically, the signal satisfaction requirement of the high priority cell of the current serving cell includes: when the current serving cell is a 2G network, the signal quality of the cell of the EUTRAN or the UTRAN is greater than the first threshold in the first set time interval. Value

Or, when the current serving cell is EUTRAN or UTRAN, the signal strength of the cell of the GERAN or CDMA2000 is greater than the second threshold in the second set time interval.

Therefore, in this embodiment, when the signal quality of the cell of the high priority EUTRAN or UTRAN is greater than the first threshold Thresh _x , _HighQ within the first set time interval TreselectionRAT, and the current service attribute of the mobile station and the current service When the service attributes of the cell do not match, a trigger condition for cell reselection is generated;

Or, when the signal strength of the high priority GERAN or CDMA2000 cell is greater than the second threshold Thresh _x , _HlghP in the second set time interval TreselectionRAT, and the current service attribute of the mobile station and the service attribute of the current serving cell are not When matching, a trigger condition for cell reselection is generated.

Wherein, the parameter TreselectionRAT represents the reselection delay time under a certain RAT, Thresh _x , _HighQ ,

Thresh _x and _Hl ghp are respectively set thresholds of the system. The time interval TreselectionRAT can be obtained by measurement, and the threshold values Thresh _x , _HighQ , Thresh _x , _High p are obtained through the broadcast system message information.

Step 202: When a trigger condition for cell reselection is generated, determining a new cell based on the set cell reselection rule.

In the method for implementing cell reselection in this embodiment, the triggering condition of the cell reselection when the current service attribute of the mobile station does not match the current serving cell service attribute is determined by the signal of the high priority cell and the current service attribute of the mobile station, and then the new condition is determined. The cell is configured to reduce the number of times the mobile station performs cell reselection in a scenario where multiple radio access technologies coexist, thereby reducing the power consumption of the mobile station.

FIG. 3 is a flowchart of Embodiment 3 of a method for implementing cell reselection according to the present invention. The embodiment is a specific implementation of the step 101 in the first embodiment of the present invention. As shown in FIG. 3, the method for implementing cell reselection in this embodiment includes:

Step 301: If the signal of the high priority cell of the current serving cell meets the requirement, the current service attribute of the mobile station matches the service attribute of the current serving cell, and the signal of the current serving cell does not meet the requirement, the trigger condition for generating the cell reselection is generated. . Specifically, the signal satisfaction requirement of the high priority cell of the current serving cell includes: when the current serving cell is a 2G network, the signal quality of the cell of the EUTRAN or the UTRAN is greater than the first threshold in the first set time interval. value;

Therefore, in this embodiment, when the signal quality of the cell of the high priority EUTRAN or UTRAN is greater than the first threshold Thresh _x , _HlghQ in the first set time interval TreselectionRAT, the current service attribute of the mobile station and the current serving cell The service attributes match, and the signal strength of the current serving cell is less than the third threshold Thresh _x , _new within the third set time interval Treselection RAT, and a trigger condition for cell reselection is generated.

When the signal strength of the high-priority GERAN or CDMA2000 cell is greater than the second threshold Thresh _x , _HighP in the second set time interval TreselectionRAT, the current service attribute of the mobile station matches the service attribute of the current serving cell, and the current The signal strength of the serving cell is less than the third threshold Thresh _x , _new within the third set time interval Treselection RAT, and a trigger condition for cell reselection is generated.

The parameter TreselectionRAT indicates the reselection delay time under a certain RAT. Thresh _x , _HighQ , Thresh _x , _HlghP , Thresh _x , and _new are the threshold values set by the system respectively, and the time interval TreselectionRAT can be obtained through measurement. System message information threshold Thresh _x , _HighQ , Thresh _x , _High p, Thresh _x , new°

Step 302: When a trigger condition for cell reselection is generated, determining a new cell based on the set cell reselection rule.

The method for implementing cell reselection in this embodiment determines, by the signal of the high priority cell and the current service attribute of the mobile station, a trigger condition for cell reselection when the current service attribute of the mobile station matches the current serving cell service attribute, and then determines a new The cell is configured to reduce the number of times the mobile station performs cell reselection in a scenario where multiple radio access technologies coexist, thereby reducing the power consumption of the mobile station.

FIG. 4 is a flowchart of Embodiment 4 of a method for implementing cell reselection according to the present invention. This embodiment is shown in FIG. A specific implementation manner of the step 101 in the first embodiment is shown in FIG. 4. The method for implementing cell reselection in this embodiment includes:

Step 401: When the mobile station camps on the current serving cell exceeds a set time threshold, and the current service attribute of the mobile station does not match the service attribute of the current serving cell, a trigger condition for cell reselection is generated.

In this step, the set time threshold can be set according to experience. Optionally, the threshold is set to 1 second.

Step 402: When a trigger condition for cell reselection is generated, a new cell is determined based on the set cell reselection rule.

The method for implementing cell reselection in this embodiment determines, by the mobile station dwell time and the current service attribute, a trigger condition for cell reselection when the current service attribute of the mobile station does not match the current serving cell service attribute, and further determines a new cell. In order to reduce the number of times the mobile station performs cell reselection in a scenario where multiple radio access technologies coexist, the power consumption of the mobile station is reduced.

5 is a cell reselection topology diagram of Embodiment 5 of a method for implementing cell reselection according to the present invention. As shown in FIG. 5, a mobile station is in an overlapping area covered by 2G, 3G, and LTE cells, and 2G, 3G, and LTE co-sites Address, and the priority of the wireless access system is sequentially increased. In each of the RATs in Figure 5, only one station is drawn to indicate that the curve is the moving path of the mobile station, and the arrow is the moving direction. At the same time, the mobile station is a multi-mode terminal, which can support 3G, 3G and LTE. 4 The service attribute of the mobile station is 3G data service. When the mobile station moves, cell reselection will occur.

Step 01: The mobile station is initially in the 3G network, that is, the service attribute of the current serving cell of the mobile station is 3G, as the initial access cell, when the mobile station just moves to the LTE coverage area, although a high priority is received at this time. The signal quality of the LTE cell is greater than the threshold. However, since the current mobile station's service attribute is 3G and the received signal quality from the 3G cell is not less than the specified threshold, cell reselection does not occur.

Step 02: As the mobile station gradually moves, the signal quality from the 3G cell is less than the specified threshold, and the signal quality of the received LTE cell is greater than the threshold. At this time, the cell reselection to the RAT UTE occurs.

The method for implementing cell reselection in this embodiment significantly reduces the number of reselection of the mobile station and reduces the power consumption of the terminal.

FIG. 6 is a flowchart of cell selection in Embodiment 6 of a method for implementing cell reselection according to the present invention. This implementation The example is based on the first embodiment shown in FIG. Further, the method for implementing cell reselection further includes: Step 103: Perform cell selection in a cell of at least two radio access systems according to a current service attribute of the mobile station.

In the method for implementing cell reselection in this embodiment, the triggering condition of the cell reselection is determined by the current service attribute of the mobile station, and then the cell selection is performed, so that the mobile station performs cell reselection in a scenario where multiple radio access technologies coexist. The number of times, the power consumption of the mobile station is reduced, and the cell selection performed when the cell is reselected in the multi-standard system is implemented.

FIG. 7 is a flowchart of cell selection in Embodiment 7 of a method for implementing cell reselection according to the present invention. As shown in FIG. 7, the method for performing cell selection in a cell of at least two types of radio access systems according to the current service attribute of the mobile station in this embodiment includes:

Step 701: Access a corresponding wireless access system by using a wireless access function configured on the mobile station.

In this step, multiple wireless access functions, such as 2G, 3G, LTE or other RATs, can be configured on the mobile station. First, the mobile station accesses the RATj system, and performs cell selection according to the rules of the RATj to determine whether the access is successful. The mobile station can be manually set to access the RATj system, and j represents a certain wireless access standard, such as 2G, 3G. , LTE or other RAT. Among them, the rules for selecting cells in the 2G, 3G, and LTE protocols are:

1) For the 2G system: the received signals are sorted in descending order according to the signal strength, and the UE selects the cell with the strongest strength to camp;

2) For 3G systems, the following formula requirements must be met:

For FDD cells: Srxlev > 0 AND Squal > 0

For TDD cells: Srxlev > 0

Squal = Qqualmeas - (Qqualmin + QqualminOffset)

Srxlev = Qrxlevmeas - (Qrxlevmin + QrxlevminOffset) - Pcompensation

Where Srxlev represents the strength of the received signal; Squal represents the quality of the received signal; Qqualmeas is CPICH Ec/NO; Qrxlevmeas is CPICH RSCP for Frequency Division Duplexing (FDD), for Time Division Duplex (Time Division) Duplexing; hereinafter referred to as: TDD) is P-CCPCH RSCP.

3) For the LTE system, the formula for satisfying the cell selection is as follows:

Srxlev > 0 AND Squal > 0 Where:

Srxlev = Qrxlevmeas - (Qrxlevmin + Qrxlevminoffset) - Pcompensation

Squal = Qqualmeas - (Qqualmin + Qqualminoffset)

Where Srxlev represents the strength of the received signal; Squal represents the quality of the received signal; Qqualmeas is the reference signal receiving quality of the received signal (hereinafter referred to as: RSRQ); Qrxlevmeas is the reference signal received power of the received signal (Reference Signal Receiving) Power, ; hereinafter referred to as: RSRP ); Qrxlevmin is the minimum value of the received signal strength; Qrxlevminoffset is the minimum deviation of the received signal strength; Pcompensation is the path loss compensation value.

If the mobile station fails to access the RATj system, the mobile station attempts to access another RATk system according to the above-mentioned cell selection rule until the mobile station successfully accesses a RAT, assuming that the mobile station successfully accesses the RATj system.

Step 702: Obtain a broadcast system message by using the accessed wireless access system, where the system message includes attribute information of a cell related to the mobile station in at least two types of wireless access systems.

In this step, the mobile station acquires the system message broadcast by the RATj system through the accessed RATj system, and the system message includes attribute information of the cell related to the mobile station in at least two types of radio access systems. The attribute information of the cell related to the mobile station in the at least two types of radio access systems includes: a load, an available resource, a priority list, and a priority list of each cell in the vicinity of the mobile station location in each radio access system. Interference parameters and recommended cell list.

Specifically, in the system message, the load of each cell in the vicinity of the location of the mobile station may be represented by parameters such as the number of users or throughput that has been accessed, the total power received, and the like; The physical resource block, the code, the power, etc.; the priority list of each cell in the vicinity of the mobile station location can be obtained by arranging the priorities of the cells according to the remaining number of resources or the remaining power, etc.; The interference parameter may be characterized by a parameter such as a signal to noise ratio; the recommended cell list may be a recommended cell selected by the base station according to parameters such as remaining resources.

Step 703: Select a wireless access system to be accessed according to the attribute information of the related cell and the set radio access system selection rule.

In this step, the attribute information of the related cell includes the recommended cell list, but the mobile station does not have to accept the recommended cell in the recommended cell list, and the mobile station may re-select one of the RATs according to its own service attribute. Community. For example, the mobile station may select a wireless access system that matches the current service attribute as the wireless access system to be accessed. Here, assume that RATk is the most suitable connection. The system is provided to the mobile station.

Step 704: Perform cell selection according to a cell selection rule of the to-be-access wireless access system in the wireless access system to be accessed.

In this step, since RATk is the most suitable access system for the mobile station, the mobile station exits the RATj system and accesses the RATk system, and then performs cell selection based on the cell selection rule specified in the RATk system. Among them, the mobile station can be manually set to exit the RATj system and access the RATk system, and j and k respectively represent a certain standard, such as 2G, 3G, LTE or other RAT. When the cell in the RATk system is selected, the cell selection of the mobile station ends.

The method for implementing cell reselection in this embodiment, after accessing the corresponding wireless access system by the wireless access function configured on the mobile station and acquiring the system message, selecting an appropriate wireless access system according to the system message and selecting according to the cell The rule selects a cell under the radio access system to implement cell selection when performing cell reselection in a multi-standard manner.

FIG. 8 is a flowchart of cell selection in Embodiment 8 of a method for implementing cell reselection according to the present invention. This embodiment is another implementation method for performing cell selection in a cell of at least two types of radio access systems according to the current service attribute of the mobile station. As shown in FIG. 8, in this embodiment, according to the current service attribute of the mobile station, The method for performing cell selection in a cell of at least two radio access systems includes:

Step 801: Access various corresponding wireless access systems by using various wireless access functions configured on the mobile station.

In this step, multiple wireless access functions, such as 2G, 3G, LTE or other RATs, can be configured on the mobile station. In this embodiment, the mobile station accesses the wireless access system in all modes, wherein the mobile station can be manually set to access all wireless access systems.

Step 802: Perform cell selection according to cell selection rules of various radio access systems in various radio access systems to obtain a plurality of candidate cells.

In this step, when the mobile station accesses all RATs, such as 2G, 3G, and LTE, the cell under the RAT is selected according to the rule of cell selection specified in the 2G, 3G, and LTE protocols. In this embodiment, cellx and celly are assumed. The cellz cell is selected by the 2G, 3G, and LTE systems, respectively.

Step 803: Select a cell to be accessed according to signal strength and signal quality of each candidate cell, and service attributes of the mobile station.

In this step, each candidate cell in the 2G, 3G, and LTE systems is a cellx, celly, and cellz cell, and then, according to the signal strength and signal quality of each cell, and the service genus of the mobile station. Sex, select the cell to be finally accessed. For example, when the signal quality of each cell is greater than a certain threshold, the cell with the strongest received signal is selected. After the cell to be accessed is selected, the cell is accessed and the system message is received, and the cell selection of the mobile station ends.

The method for implementing cell reselection in this embodiment selects each cell under the access system by accessing all the radio access systems configured on the mobile station, and then selects the most according to the signal quality, signal strength, and mobile station service attributes. A suitable cell to be accessed is used to implement cell selection performed when cell reselection is performed under multiple standards.

FIG. 9 is a flowchart of Embodiment 9 of a method for implementing cell reselection according to the present invention. The technical solution in this embodiment is implemented by a device for implementing cell reselection on a base station side, and the implementation device can be implemented in hardware or software, and can be implemented with a terminal. Cooperate to achieve cell reselection. As shown in FIG. 9, the method for implementing cell reselection in this embodiment includes:

Step 901: Obtain attribute information of surrounding cells of at least two types of radio access systems in which the location is located.

Step 902: Broadcast system information.

In this step, the system information includes attribute information of surrounding cells in at least two types of radio access systems, so that the mobile station performs cell selection in cells of at least two radio access systems according to current service attributes. Preferably, the attribute information includes: a load, an available resource, a priority list, an interference parameter, and a recommended cell list of each cell in the vicinity of the mobile station location in the various radio access systems.

In the method for implementing cell reselection in this embodiment, the base station sends a system message, so that the mobile station performs cell selection according to the system message, so as to implement cell selection performed when the cell is reselected in the multi-standard system.

FIG. 10 is a schematic structural diagram of Embodiment 10 of an apparatus for implementing terminal-side cell reselection according to the present invention. As shown in FIG. 10, the apparatus for implementing terminal-side cell reselection in this embodiment includes: a reselection triggering module 11 and a cell reselection module 12, wherein the reselection triggering module 11 is configured to determine according to a current service attribute of the mobile station. Whether a trigger condition for cell reselection is generated; the cell reselection module 12 is configured to determine a new cell based on the set cell reselection rule when a trigger condition for cell reselection is generated.

The device in this embodiment may be used to implement the technical solution of the method embodiment shown in FIG. 1. The implementation principle and technical effects are similar, and details are not described herein again.

FIG. 11 is a schematic structural diagram of Embodiment 11 of an apparatus for implementing terminal-side cell reselection according to the present invention. As shown in FIG. 11, the apparatus of this embodiment is further re-selected based on the apparatus structure shown in FIG. The trigger module 11 includes: a first trigger unit 111, a second trigger unit 112, and a third trigger unit 113. The first triggering unit 111 is configured to: when the signal of the high priority cell meets the requirement, and the current service attribute of the mobile station does not match the service attribute of the current serving cell, generate a trigger condition for cell reselection; And a triggering condition for generating a cell reselection when the current service attribute of the mobile station matches the service attribute of the current serving cell, and the signal of the current serving cell does not meet the requirement, where the signal of the high priority cell satisfies the requirement; The triggering unit 113 is configured to generate a trigger condition for cell reselection when the camping time of the mobile station exceeds a set time threshold in the current serving cell, and the current service attribute of the mobile station does not match the service attribute of the current serving cell. .

The device of this embodiment may be used to implement the technical solution of the method embodiment shown in FIG. 2 to FIG. 4, and the implementation principle and the technical effect are similar, and details are not described herein again.

FIG. 12 is a schematic structural diagram of Embodiment 12 of an apparatus for implementing terminal-side cell reselection according to the present invention. As shown in FIG. 12, the device in this embodiment is further configured to include a cell selection module 13 for using at least two types of wireless access systems according to current service attributes of the mobile station. Cell selection is performed in the cell.

The device in this embodiment may be used to implement the technical solution of the method embodiment shown in FIG. 6. The implementation principle and technical effects are similar, and details are not described herein again.

FIG. 13 is a schematic structural diagram of Embodiment 13 of an apparatus for implementing terminal-side cell reselection according to the present invention. As shown in FIG. 13, the apparatus of this embodiment is based on the apparatus structure shown in FIG. 11. Further, the cell selection module 13 includes a first access unit 131, a first obtaining unit 132, a system selecting unit 133, and a first Cell selection unit 134. The first access unit 131 is configured to access a corresponding wireless access system by using a wireless access function configured on the mobile station. The first obtaining unit 132 is configured to obtain a broadcast by using the accessed wireless access system. System message, the system message includes attribute information of a cell related to the mobile station in at least two types of radio access systems; and a system selecting unit 133, configured to: according to the attribute information of the related cell and the set radio connection Entering a system selection rule, selecting a radio access system to be accessed; a first cell selecting unit 134, configured to: according to a cell selection rule of the radio access system to be accessed, in a radio access system to be accessed Perform cell selection. The attribute information of the cell related to the mobile station in the at least two types of radio access systems includes: a load, an available resource, a priority list, and a priority list of each cell in the vicinity of the mobile station location in each radio access system. Interference parameters and recommended cell list.

The device of this embodiment may be used to implement the technical solution of the method embodiment shown in FIG. The principle and technical effects are similar and will not be described here.

FIG. 14 is a schematic structural diagram of Embodiment 14 of an apparatus for implementing terminal-side cell reselection according to the present invention. As shown in FIG. 14, the apparatus of this embodiment is based on the apparatus structure shown in FIG. 12. Further, the cell selection module 13 includes a second access unit 135, a second cell selection unit 136, and a third cell selection unit 137. . The second access unit 135 is configured to access corresponding wireless access systems by using various radio access functions configured on the mobile station; the second cell selecting unit 136 is configured to be used in various wireless access systems. The cell selection is performed according to the cell selection rules of the various radio access systems to obtain a plurality of candidate cells; the third cell selecting unit 137 is configured to: according to the signal strength and signal quality of each candidate cell, and the mobile The service attribute of the station, select the cell to be accessed.

The device in this embodiment may be used to implement the technical solution of the method embodiment shown in FIG. 8. The implementation principle and technical effects are similar, and details are not described herein again.

FIG. 15 is a schematic structural diagram of Embodiment 15 of an apparatus for implementing cell reselection of a base station side according to the present invention. As shown in FIG. 15, the apparatus for implementing cell reselection of the base station side in this embodiment includes: an attribute information acquiring module 21 and a system information sending module 22, wherein the attribute information acquiring module 21 is configured to acquire at least two locations where the location is located. The attribute information of the surrounding cells of the wireless access system; the system information sending module 22, configured to broadcast system information, where the system information includes attribute information of surrounding cells in at least two types of wireless access systems, so that the mobile station The current service attribute, the cell selection is performed in the cells of the at least two radio access systems, and the attribute information preferably includes: the load and the available resources of each cell in the vicinity of the mobile station location in the various radio access systems , priority list, interference parameters, and recommended cell list.

The device in this embodiment may be used to implement the technical solution of the method embodiment shown in FIG. 9. The implementation principle and technical effects are similar, and details are not described herein again.

16 is a schematic structural diagram of a mobile station according to Embodiment 16 of the present invention. The mobile station includes at least one processor 161 (for example, a CPU), at least one network interface 162 or other communication interface, a memory 163, and at least one communication bus 164. Used to implement connection communication between devices. The processor 161 is for executing an executable module, such as a computer program, stored in the memory 163. The memory 163 may include a high speed random access memory (RAM: Random Access Memory), and may also include a non-volatile memory such as at least one disk memory. The communication connection between the mobile station and the base station is achieved by at least one network interface 162.

In some embodiments, the memory 163 stores a program 165 that can be processed The program 161 is executed, the program includes an implementation method for performing a cell reselection, the method includes: determining, according to a current service attribute of the mobile station, whether a trigger condition for generating cell reselection is generated; when generating a trigger condition for cell reselection, based on the setting The determined cell reselection rule determines the new cell. The foregoing procedure for performing the cell reselection method, preferably, determining whether the cell reselection is generated according to the current service attribute of the mobile station includes:

In the above procedure for implementing the method for performing cell reselection, it is preferable that the signal satisfaction requirements of the high priority cell include:

The foregoing method for implementing the method for performing cell reselection, preferably, the method for implementing the cell reselection further includes:

The cell selection is performed in the cells of at least two radio access systems according to the current service attributes of the mobile station.

The foregoing method for performing the cell reselection method preferably, according to the current service attribute of the mobile station, performing cell selection in the cells of the at least two radio access systems includes:

Accessing a corresponding wireless access system by using a wireless access function configured on the mobile station; acquiring a broadcast system message by using the accessed wireless access system, where the system message includes at least two wireless access systems Attribute information of the mobile station related cell; Selecting a wireless access system to be accessed according to the attribute information of the related cell and the set radio access system selection rule;

In the radio access system to be accessed, cell selection is performed according to the cell selection rule of the radio access system to be accessed.

The program for performing the method for performing cell reselection is preferably that the attribute information of the cell related to the mobile station in the at least two types of radio access systems includes: in each of the wireless access systems, each of the locations around the mobile station Cell load, available resources, priority list, interference parameters, and recommended cell list.

The embodiment of the present invention further provides another base station, which includes a memory, a processor, and a network interface. The structure thereof can be seen in FIG. 16. The memory stores a program, and the processor is configured to execute the program to complete the operation. Method:

Obtaining attribute information of surrounding cells of at least two types of radio access systems in which the location is located; broadcasting transmission system information, where the system information includes attribute information of surrounding cells in at least two types of radio access systems, so that the mobile station is configured according to Current service attributes, cell selection is performed in cells of at least two radio access systems.

Preferably, the attribute information includes: a load, an available resource, a priority list, an interference parameter, and a recommended cell list of each cell in the vicinity of the mobile station location in the various radio access systems.

One of ordinary skill in the art will appreciate that all or a portion of the steps to implement the various method embodiments described above can be accomplished by hardware associated with the program instructions. The aforementioned program can be stored in a computer readable storage medium. The program, when executed, performs the steps including the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention, and not The invention is described in detail with reference to the foregoing embodiments, and those skilled in the art should understand that the technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be modified. The equivalents are made without departing from the scope of the technical solutions of the embodiments of the present invention.

Claims

claims

1. A method for implementing cell reselection, which is characterized by including:

Determine whether a trigger condition for cell reselection is generated based on the current service attributes of the mobile station; when a trigger condition for cell reselection is generated, a new cell is determined based on the set cell reselection rules.

2. The implementation method of cell reselection according to claim 1, characterized in that the triggering conditions for determining whether to generate cell reselection according to the current service attributes of the mobile station include:

If the signal of the high-priority cell of the current serving cell meets the requirements and the current service attributes of the mobile station do not match the service attributes of the current serving cell, a trigger condition for cell reselection is generated;

If the signal of the high-priority cell of the current serving cell meets the requirements, the current service attributes of the mobile station match the service attributes of the current serving cell, and the signal of the current serving cell does not meet the requirements, a trigger condition for cell reselection is generated;

When the mobile station's residence time in the current serving cell exceeds the set time threshold and the mobile station's current service attributes do not match those of the current serving cell, a trigger condition for cell reselection is generated.

3. The method for implementing cell reselection according to claim 2, characterized by:

The signal satisfaction requirements of the high-priority cell of the current serving cell include:

The signal quality of the cell of the Evolved Universal Terrestrial Radio Access Network EUTRAN or the Universal Mobile Communications System Terrestrial Radio Access Network UTRAN is greater than the first threshold within the first set time interval; or Global System for Mobile Communications GSM/Enhanced The signal strength of the cell of the data rate GSM evolution technology EDGE wireless access network GERAN or code division multiple access CDMA2000 is greater than the second threshold value within the second set time interval;

The signals of the current serving cell that do not meet the requirements include:

The signal strength of the current serving cell is less than the third threshold within the third set time interval.

4. The method for implementing cell reselection according to any one of claims 1-3, characterized in that it further includes:

According to the current service attributes of the mobile station, cell selection is performed among the cells of at least two wireless access systems.

5. The implementation method of cell reselection according to claim 4, characterized in that, according to the current service attributes of the mobile station, performing cell selection in the cells of at least two wireless access systems includes: through the configuration configured on the mobile station. A wireless access system corresponding to wireless access function access; Obtain broadcast system messages through the accessed wireless access system, where the system messages include attribute information of cells related to the mobile station in at least two wireless access systems;

Select the wireless access system to be accessed according to the attribute information of the relevant cell and the set wireless access system selection rules;

In the wireless access system to be accessed, cell selection is performed according to the cell selection rules of the wireless access system to be accessed.

6. The method for implementing cell reselection according to claim 5, wherein the attribute information of cells related to mobile stations in the at least two wireless access systems includes: In various wireless access systems, the The load, available resources, priority list, interference parameters and recommended cell list of each cell surrounding the mobile station location.

7. The implementation method of cell reselection according to claim 4, characterized in that, according to the current service attributes of the mobile station, performing cell selection in the cells of at least two wireless access systems includes: through the configuration configured on the mobile station. Various wireless access functions access corresponding wireless access systems; in various wireless access systems, cell selection is performed according to the cell selection rules of various wireless access systems to obtain multiple candidate cells;

The cell to be accessed is selected based on the signal strength and signal quality of each cell to be selected, and the service attributes of the mobile station.

8. A method for implementing cell reselection, which is characterized by including:

Obtain attribute information of surrounding cells in at least two wireless access systems where the mobile station is located; broadcast and send system information, wherein the system information includes attribute information of surrounding cells in at least two wireless access systems, so that the mobile station can Based on the current service attributes, cell selection is performed among cells of at least two wireless access systems.

9. The method for implementing cell reselection according to claim 8, wherein the attribute information includes: in various wireless access systems, the load and available resources of each cell surrounding the mobile station location, Priority list, interference parameters and recommended cell list.

10. A device for implementing cell reselection on the terminal side, which is characterized in that it includes:

A reselection trigger module, used to determine whether to generate a trigger condition for cell reselection based on the current service attributes of the mobile station;

The cell reselection module is used to determine a new cell based on the set cell reselection rules when a trigger condition for cell reselection occurs.

11. The device for implementing cell reselection on the terminal side according to claim 10, characterized in that the reselection triggering module includes:

The first trigger unit is used to generate a trigger condition for cell reselection if the signal of the high-priority cell of the current serving cell meets the requirements and the current service attributes of the mobile station do not match the service attributes of the current serving cell;

The second trigger unit is used to generate a cell reset if the signal of the high-priority cell of the current serving cell meets the requirements, the current service attributes of the mobile station match the service attributes of the current serving cell, and the signal of the current serving cell does not meet the requirements. Selected trigger conditions;

The third trigger unit is used to trigger cell reselection when the mobile station's residence time in the current serving cell exceeds the set time threshold and the current service attributes of the mobile station do not match the service attributes of the current serving cell. condition.

12. The device for implementing cell reselection on the terminal side according to claim 10 or 11, further comprising:

The cell selection module is used to select cells among the cells of at least two wireless access systems according to the current service attributes of the mobile station.

13. The device for implementing cell reselection on the terminal side according to claim 12, characterized in that the cell selection module includes:

The first access unit is used to access the corresponding wireless access system through a wireless access function configured on the mobile station;

A first acquisition unit, configured to acquire broadcast system messages through the accessed wireless access system, where the system messages include attribute information of cells related to the mobile station in at least two wireless access systems; a system selection unit, configured to: Select the wireless access system to be accessed according to the attribute information of the relevant cell and the set wireless access system selection rules;

The first cell selection unit is configured to perform cell selection in the wireless access system to be accessed according to the cell selection rules of the wireless access system to be accessed.

14. The apparatus for implementing cell reselection on the terminal side according to claim 13, wherein the attribute information of cells related to the mobile station in the at least two wireless access systems includes: In various wireless access systems, The load, available resources, priority list, interference parameters and recommended cell list of each cell surrounding the mobile station location.

15. The device for implementing cell reselection on the terminal side according to claim 12, characterized in that: The cell selection module includes:

The second access unit is used to access corresponding various wireless access systems through various wireless access functions configured on the mobile station;

The second cell selection unit is used to perform cell selection in various wireless access systems according to the cell selection rules of various wireless access systems to obtain multiple candidate cells;

The third cell selection unit is used to select the cell to be accessed based on the signal strength and signal quality of each cell to be selected, and the service attributes of the mobile station.

16. A device for realizing cell reselection on the base station side, which is characterized by including:

The attribute information acquisition module is used to obtain attribute information of surrounding cells of at least two wireless access systems at the location;

A system information sending module, configured to broadcast and send system information, wherein the system information includes attribute information of surrounding cells in at least two wireless access systems, so that the mobile station can transmit system information in at least two wireless access systems according to the current service attributes. Cell selection is performed among the cells of the system.

17. The device for implementing cell reselection on the base station side according to claim 16, wherein the attribute information includes: load and availability of each cell surrounding the mobile station in various wireless access systems. Resources, priority list, interference parameters and recommended cell list.