CN105379353B

CN105379353B - Switching method, source access network node and target access network node

Info

Publication number: CN105379353B
Application number: CN201480007266.7A
Authority: CN
Inventors: 舒文江; 徐凯; 徐小英; 杨旭东
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2014-05-08
Filing date: 2014-05-08
Publication date: 2020-03-10
Anticipated expiration: 2034-05-08
Also published as: CN105379353A; WO2015168918A1

Abstract

The invention relates to the technical field of wireless communication, in particular to a switching method and an access network node, wherein the method comprises the following steps: receiving a terminal switching request (100) sent by a source access network node; estimating a rate value (110) of the terminal after the terminal is switched from the source cell to the target cell according to the terminal switching request; and when the estimated switched rate value is determined to meet the preset condition, sending a terminal switching request response message to the source access network node so that the source access network node switches the terminal from the source cell to the target cell (120). Therefore, the scheme provided by the embodiment of the invention ensures that the rate value of the terminal meets the preset condition after the terminal is switched to the target system, thereby avoiding the influence on the service quality and further improving the user experience.

Description

Switching method, source access network node and target access network node

Technical Field

The present invention relates to the field of wireless communication technologies, and in particular, to a handover method, an access network node, and a target access network node.

Background

At present, with the development of communication technology, various new access technologies are developed. Since the networks corresponding to the various access technologies usually have respective suitable coverage and application scenarios, the heterogeneous system applications consisting of systems using different access technologies are generated.

Due to the characteristics of the systems, for example, an LTE (Long Term Evolution) System has the characteristics of high transmission rate and small coverage, and an UMTS (Universal Mobile Telecommunications System) has the characteristics of low transmission rate and wide coverage, there is a need for handover between different systems in practical application. The inter-system switching means that the terminal crosses the boundary of the current system, the service is switched from the current system to another system, and after the system switching is completed, the switched system is used for managing the current service of the terminal.

For example, when an LTE System coexists with a GSM (Global System for Mobile communications) System or an LTE System coexists with a UMTS System, in some scenarios, a terminal needs to switch from one System to another System, e.g., when the terminal is in a connected state and has a service running, the terminal needs to switch from the GSM System/UMTS System to the LTE System with better signal quality in order to maintain the communication quality of the terminal.

In the prior art, when a handover between different systems is performed, a target system may access a terminal as long as it is determined that the target system has a capability of accessing the terminal when receiving a handover request, but there are disadvantages of a reduced rate and an impact on service quality, for example, if the handover is initiated based on a load, the terminal is switched from an LTE system to a UMTS system, and if the rate of the UMTS system is less than that of the LTE system, by using the method, although the terminal can be switched from the LTE system to the UMTS system, due to the reduction of the service rate, the service quality is affected, and user experience is reduced.

Of course, there may be a defect that the service quality is affected because the rate of the target cell is lower than that of the source cell in the handover between the same systems.

In summary, the existing handover technology has the defects of affecting the quality of service and reducing the user experience.

Disclosure of Invention

The embodiment of the invention provides a switching method, an access network node and a target access network node, which are used for overcoming the defects that the service quality is influenced and the user experience is reduced in the conventional different system switching technology.

The embodiment of the invention provides the following specific technical scheme:

in a first aspect, a handover method is provided, including:

receiving a terminal switching request sent by a source access network node;

estimating a rate value of the terminal after the terminal is switched from the source cell to the target cell according to the terminal switching request;

and when the estimated switched rate value meets the preset condition, sending a terminal switching request response message to the source access network node, so that the source access network node switches the terminal from the source cell to the target cell.

With reference to the first aspect, in a first possible implementation manner, the source access network node and the target access network node belong to any one or any two combinations of the following:

global system for mobile communications GSM, code division multiple access CDMA system, time division multiple access TDMA system, wideband code division multiple access WCDMA system, frequency division multiple access FDMA system, time division synchronous code division multiple access TD-SCDMA system, long term evolution LTE system, universal mobile telecommunications system UMTS system.

With reference to the first aspect or the first possible implementation manner of the first aspect, in a second possible implementation manner, the source access network node is a base station or a radio network controller, RNC, and the target access network node is a base station or an RNC.

With reference to the first aspect, or the first to second possible implementation manners of the first aspect, in a third possible implementation manner, the terminal handover request includes any one of the following or a combination of any several of the following:

switching type indication, wireless signal measurement result, rate value required by the terminal after the terminal is switched, and rate value before the terminal is switched;

wherein the switching type indication carrying the switching type of the switching to be performed by the terminal is based on load switching;

the wireless signal measurement result is used for indicating that the switching type of the switching to be performed by the terminal is load-based switching.

With reference to the first aspect, or the first to third possible implementation manners of the first aspect, in a fourth possible implementation manner, estimating, according to the terminal handover request, a rate value after the terminal is handed over from the source cell to the target cell includes:

acquiring current load information of the target cell;

and estimating a rate value of the terminal after the terminal is switched from the source cell to the target cell according to the terminal switching request and the load information.

With reference to the fourth possible implementation manner of the first aspect, in a fifth possible implementation manner, the load information includes any one or a combination of any several of the following:

the information of the number of the high-speed packet access HSPA terminals of the target cell, the information of the number of code channel resources used by the target cell, the information of the code channel resource use ratio of the target cell, the information of the number of CE resources occupied by a channel processing unit of the target cell, the information of the CE resource occupation ratio of the target cell, the information of the residual power value of the target cell, and the information of the residual power ratio of the target cell.

With reference to the first aspect, or the first to fifth possible implementation manners of the first aspect, in a sixth possible implementation manner, before determining that the estimated rate value after the handover meets the preset condition, the method further includes:

receiving a rate indication message sent by a core network; the rate indication message comprises a rate value before the terminal is switched and/or a rate value required by the terminal after the terminal is switched;

the rate value before the terminal is switched is reported to the core network after the source access network node is obtained through statistics; or, the core network is obtained by statistics;

the rate value required by the terminal after the terminal is switched is set by the source access network node according to the rate value before the terminal is switched, which is obtained by statistics, and the rate value is reported to the core network; or, the core network is set according to the counted rate value before the terminal is switched.

With reference to the third to sixth possible implementation manners of the first aspect, in a seventh possible implementation manner, the determining that the estimated rate value after the switching meets a preset condition specifically includes:

if the terminal switching request comprises a speed value required by the terminal after the terminal is switched, determining that the estimated speed value after the switching is greater than or equal to the speed value required by the terminal after the terminal is switched;

and if the terminal switching request comprises the speed value before the terminal switching, determining that the estimated speed value after the switching is greater than or equal to the speed value before the terminal switching.

With reference to the first aspect, or the first to seventh possible implementation manners of the first aspect, in an eighth possible implementation manner, the terminal handover request includes service type information of the terminal in the source cell and/or radio resource configuration information of the terminal in the source cell;

determining that the estimated switched speed value is greater than or equal to a preset threshold value specifically includes:

estimating a rate value before the terminal is switched according to the service type information of the terminal in the source cell and/or the wireless resource configuration information of the terminal in the source cell;

and determining that the estimated speed value after the switching is more than or equal to the speed value before the terminal is switched.

With reference to the first aspect, or the first to eighth possible implementation manners of the first aspect, in a ninth possible implementation manner, the method further includes:

and when the estimated switched speed value is determined not to meet the preset condition, sending an access refusing message to the source access network node, and refusing the access of the terminal.

With reference to the ninth possible implementation manner of the first aspect, in a tenth possible implementation manner, the access rejection message includes a reason for rejecting the access of the terminal.

With reference to the first aspect, or the first to tenth possible implementation manners of the first aspect, in an eleventh possible implementation manner, before sending the terminal handover request response message to the source access network node, the method further includes:

and receiving an indication message sent by the source access network node, wherein the indication message is used for indicating the target access network node to forbid configuring enhanced wireless resource information for the terminal.

With reference to the eleventh possible implementation manner of the first aspect, in a twelfth possible implementation manner, the enhanced radio resource information includes any one or a combination of any several of the following:

uplink multi-carrier information, downlink multi-carrier information, multiple-input multiple-output (MIMO) information, multi-stream information, frequency band combination information, 64-phase Quadrature Amplitude Modulation (QAM) information, Closed Loop Transmit Diversity (CLTD) information and open loop transmit diversity information.

In a second aspect, a handover method is provided, including:

sending a terminal switching request to a target access network node;

receiving a terminal switching request response message sent by the target access network node, and switching the terminal from a source cell to a target cell;

and the terminal switching request response message is sent when the target access network node determines that the speed value of the terminal after being switched from the source cell to the target cell, which is estimated according to the terminal switching request, meets a preset condition.

With reference to the second aspect, in a first possible implementation manner, the source access network node and the target access network node belong to any one or any two combinations of the following:

With reference to the second aspect or the first possible implementation manner of the second aspect, in a second possible implementation manner, the source access network node is a base station or a radio network controller RNC, and the target access network node is a base station or an RNC.

With reference to the second aspect or the first possible implementation manner of the second aspect, in a second possible implementation manner, the terminal handover request includes any one of or a combination of any several of the following:

With reference to the second possible implementation manner of the second aspect, in a third possible implementation manner, the terminal handover request includes service type information of the terminal in the source cell and/or radio resource configuration information of the terminal in the source cell;

and the service type information of the terminal in the source cell and/or the wireless resource configuration information of the terminal in the source cell are/is used for the target access network node to estimate the rate value before the terminal is switched.

With reference to the second aspect, or the first to third possible implementation manners of the second aspect, in a fourth possible implementation manner, the method further includes:

receiving an access rejection message sent by the target access network node, and rejecting the terminal to access;

wherein the access rejection message is sent when the target access network node determines that the estimated rate value after the handover does not satisfy the preset condition.

With reference to the fourth possible implementation manner of the second aspect, in a fifth possible implementation manner, the access rejection message includes a reason for rejecting the access of the terminal.

With reference to the second aspect, or the first to fifth possible implementation manners of the second aspect, in a sixth possible implementation manner, before receiving the terminal handover request response message sent by the target access network node, the method further includes:

sending an indication message to the target access network node, wherein the indication message is used for indicating the target access network node to forbid configuring enhanced wireless resource information for the terminal;

switching a terminal from a source cell to a target cell specifically comprises:

and switching the terminal which is not configured with the enhanced wireless resource information from the source cell to the target cell.

With reference to the sixth possible implementation manner of the second aspect, in a seventh possible implementation manner, the enhanced radio resource information includes any one or a combination of any several of the following:

In a third aspect, a handover method is provided, including:

receiving current load information of a target cell reported by a target access network node;

estimating a rate value of the terminal after the terminal is switched from the source cell to the target cell according to the load information;

when the estimated speed value meets the preset condition, sending a terminal switching request to the target access network node;

and when receiving a terminal switching request response message sent by the target access network node according to the terminal switching request, switching the terminal from the source cell to the target cell.

With reference to the third aspect, in a first possible implementation manner, the source access network node and the target access network node belong to any one or any two combinations of the following:

With reference to the third aspect or the first possible implementation manner of the third aspect, in a second possible implementation manner, the source access network node is a base station or a radio network controller, RNC, and the target access network node is a base station or an RNC.

With reference to the third aspect, or the first to second possible implementation manners of the third aspect, in a third possible implementation manner, the load information includes any one of or a combination of any several of the following:

With reference to the third aspect, or the first to third possible implementation manners of the third aspect, in a fourth possible implementation manner, the determining that the estimated speed value satisfies the preset condition specifically includes:

determining that the estimated speed value is greater than or equal to the speed value before the terminal is switched; or

And determining that the estimated speed value is greater than or equal to the speed value required by the terminal after the terminal is switched.

With reference to the fourth possible implementation manner of the third aspect, in a fifth possible implementation manner, the rate value before the terminal is switched is obtained through statistics; or

And the rate value before the terminal is switched is obtained according to the service type information of the terminal in the source cell and/or the wireless resource configuration information of the terminal in the source cell.

With reference to the third aspect, or the first to fifth possible implementation manners of the third aspect, in a sixth possible implementation manner, before receiving a terminal handover request response message sent by the target access network node, the method further includes:

sending an indication message to the target access network node;

wherein the indication message is used for indicating the target access network node to forbid configuring enhanced radio resource information for the terminal;

switching the terminal from the source cell to the target cell specifically includes:

With reference to the third aspect, or the first to sixth possible implementation manners of the third aspect, in a seventh possible implementation manner, the enhanced radio resource information includes any one of or a combination of any several of the following:

In a fourth aspect, a handover method is provided, including:

reporting current load information of a target cell to a source access network node so that the source access network node estimates a rate value of a terminal switched from the source cell to the target cell according to the load information;

receiving a terminal switching request sent by the source access network node, wherein the terminal switching request is sent when the source access network node determines that the estimated speed value of the terminal after being switched from the source cell to the target cell meets a preset condition;

and sending a terminal switching request response message to the source access network node according to the terminal switching request so that the source access network node switches the terminal from the source cell to the target cell.

With reference to the fourth aspect, in a first possible implementation manner, the source access network node and the target access network node belong to any one or any two combinations of the following:

With reference to the fourth aspect or the first possible implementation manner of the fourth aspect, in a second possible implementation manner, the source access network node is a base station or a radio network controller RNC, and the target access network node is a base station or an RNC.

With reference to the fourth aspect or the first to second possible implementation manners of the fourth aspect, in a third possible implementation manner, the load information includes any one or a combination of any several of the following:

With reference to the fourth aspect, or the first to third possible implementation manners of the fourth aspect, in a fourth possible implementation manner, before sending the terminal handover request response message to the source access network node, the method further includes:

and switching the terminal which is not configured with the enhanced wireless resource information from the source cell to the cell.

With reference to the fourth aspect or the first to fourth possible implementation manners of the fourth aspect, in a fifth possible implementation manner, the enhanced radio resource information includes any one of or a combination of any several of the following:

In a fifth aspect, a handover method is provided, including:

receiving a terminal switching request sent by a source access network node, wherein the terminal switching request carries indication information, and the indication information is used for indicating whether enhanced wireless resources are configured for a terminal;

when the indication information is determined to be used for indicating the information for configuring the enhanced wireless resources for the terminal, sending a terminal switching request response message to the source access network node, so that the source access network node configures the wireless resource information for the terminal, and switching the terminal configured with the wireless resource information from a source cell to a target cell; or

And when the indication information is determined to be used for indicating the information for forbidding the configuration of the wireless resources for the terminal, sending a terminal switching request response message to the source access network node, so that the source access network node switches the terminal which is not configured with the wireless resource information from the source cell to the target cell.

With reference to the fifth aspect, in a first possible implementation manner, the enhanced radio resource information includes any one of or a combination of any several of the following:

In a sixth aspect, a handover method is provided, including:

a terminal switching request is sent to a target access network node, wherein the terminal switching request carries indication information, and the indication information is used for indicating whether enhanced wireless resources are configured for a terminal;

when receiving a terminal switching request response message sent by the target access network node when the indication information is determined to be used for indicating the terminal to be configured with the information of the enhanced wireless resources, configuring the wireless resource information for the terminal, and switching the terminal configured with the wireless resource information from a source cell to a target cell; or;

and when receiving a terminal switching request response message sent by the target access network node when the indication information is determined to be used for indicating that the information of the wireless resources is forbidden to be configured for the terminal, switching the terminal which is not configured with the wireless resource information from the source cell to the target cell.

With reference to the sixth aspect, in a first possible implementation manner, the enhanced radio resource information includes any one of or a combination of any several of the following:

A seventh aspect provides a target access network node, comprising:

a receiving unit, configured to receive a terminal switching request sent by a source access network node;

the estimating unit is used for estimating a rate value of the terminal after the terminal is switched from the source cell to the target cell according to the terminal switching request;

a sending unit, configured to send a terminal handover request response message to the source access network node when it is determined that the estimated rate value after handover meets a preset condition, so that the source access network node switches the terminal from the source cell to the target cell.

With reference to the seventh aspect, in a first possible implementation manner, the source access network node and the target access network node belong to any one or any two combinations of the following:

With reference to the seventh aspect or the first possible implementation manner of the seventh aspect, in a second possible implementation manner, the source access network node is a base station or a radio network controller, RNC, and the target access network node is a base station or an RNC.

With reference to the seventh aspect, or the first to second possible implementation manners of the seventh aspect, in a third possible implementation manner, the terminal handover request received by the receiving unit includes any one of or a combination of any several of the following:

With reference to the seventh aspect, or the first to third possible implementation manners of the seventh aspect, in a fourth possible implementation manner, the estimating unit is specifically configured to:

acquiring current load information of the target cell;

With reference to the fourth possible implementation manner of the seventh aspect, in a fifth possible implementation manner, the load information obtained by the estimating unit includes any one of or a combination of any several of the following:

With reference to the seventh aspect, or the first to fifth possible implementation manners of the seventh aspect, in a sixth possible implementation manner, the receiving unit is further configured to:

With reference to the third to sixth possible implementation manners of the seventh aspect, in a seventh possible implementation manner, the sending unit is specifically configured to:

With reference to the seventh aspect, or the first to seventh possible implementation manners of the seventh aspect, in an eighth possible implementation manner, the terminal handover request received by the receiving unit includes service type information of the terminal in the source cell and/or radio resource configuration information of the terminal in the source cell;

when the sending unit determines that the estimated switched speed value is greater than or equal to a preset threshold value, the method specifically includes:

With reference to the seventh aspect, or the first to eighth possible implementation manners of the seventh aspect, in a ninth possible implementation manner, the method further includes an access rejecting unit, where the access rejecting unit is configured to:

With reference to the ninth possible implementation manner of the seventh aspect, in a tenth possible implementation manner, the access rejection message sent by the access rejection unit includes a reason for rejecting the access of the terminal.

With reference to the seventh aspect, or the first to tenth possible implementation manners of the seventh aspect, in an eleventh possible implementation manner, the receiving unit is further configured to:

With reference to the eleventh possible implementation manner of the seventh aspect, in a twelfth possible implementation manner, the prohibiting, by the receiving unit, the enhanced radio resource information configured for the terminal includes any one of or a combination of any several of the following:

In an eighth aspect, a source access network node is provided, comprising:

a sending unit, configured to send a terminal switching request to a target access network node;

a switching unit, configured to receive a terminal switching request response message sent by the target access network node, and switch the terminal from the source cell to the target cell;

With reference to the eighth aspect, in a first possible implementation manner, the source access network node and the target access network node belong to any one or any two combinations of the following:

With reference to the eighth aspect or the first possible implementation manner of the eighth aspect, in a second possible implementation manner, the source access network node is a base station or a radio network controller RNC, and the target access network node is a base station or an RNC.

With reference to the eighth aspect or the first possible implementation manner of the eighth aspect, in a second possible implementation manner, the terminal switching request sent by the sending unit includes any one or a combination of any several of the following:

With reference to the second possible implementation manner of the eighth aspect, in a third possible implementation manner, the terminal handover request sent by the sending unit includes service type information of the terminal in the source cell and/or radio resource configuration information of the terminal in the source cell;

With reference to the eighth aspect or the first to third possible implementation manners of the eighth aspect, in a fourth possible implementation manner, the apparatus further includes a receiving unit, where the receiving unit is configured to:

With reference to the fourth possible implementation manner of the eighth aspect, in a fifth possible implementation manner, the access rejection message received by the receiving unit includes a reason for rejecting the access of the terminal.

With reference to the eighth aspect or the first to fifth possible implementation manners of the eighth aspect, in a sixth possible implementation manner, the sending unit is further configured to:

the switching unit is specifically configured to:

With reference to the sixth possible implementation manner of the eighth aspect, in a seventh possible implementation manner, the information for prohibiting the enhanced radio resource that is not configured by the terminal, indicated in the indication message sent by the sending unit, includes any one of or a combination of any several of the following:

In a ninth aspect, a source access network node is provided, comprising:

a receiving unit, configured to receive current load information of a target cell reported by a target access network node;

the estimating unit is used for estimating a rate value of the terminal after the terminal is switched from the source cell to the target cell according to the load information;

a sending unit, configured to send a terminal handover request to the target access network node when it is determined that the estimated rate value satisfies a preset condition;

and the switching unit is used for switching the terminal from the source cell to the target cell when receiving a terminal switching request response message sent by the target access network node according to the terminal switching request.

With reference to the ninth aspect, in a first possible implementation manner, the source access network node and the target access network node belong to any one or any two combinations of the following:

With reference to the ninth aspect or the first possible implementation manner of the ninth aspect, in a second possible implementation manner, the source access network node is a base station or a radio network controller, RNC, and the target access network node is a base station or an RNC.

With reference to the ninth aspect or the first to second possible implementation manners of the ninth aspect, in a third possible implementation manner, the load information received by the receiving unit includes any one or a combination of any several of the following:

With reference to the ninth aspect or the first to third possible implementation manners of the ninth aspect, in a fourth possible implementation manner, the sending unit is specifically configured to:

With reference to the fourth possible implementation manner of the ninth aspect, in a fifth possible implementation manner, the rate value used by the sending unit before the terminal is switched is obtained through statistics; or

The rate value before the terminal used by the sending unit is switched is obtained according to the service type information of the terminal in the source cell and/or the radio resource configuration information of the terminal in the source cell.

With reference to the ninth aspect or the first to fifth possible implementation manners of the ninth aspect, in a sixth possible implementation manner, the sending unit is further configured to:

sending an indication message to the target access network node;

the switching unit is specifically configured to:

With reference to the ninth aspect or the first to sixth possible implementation manners of the ninth aspect, in a seventh possible implementation manner, the information that prohibits the enhanced radio resource that is not configured by the terminal and is indicated in the indication message sent by the sending unit includes any one of or a combination of any several of the following:

In a tenth aspect, a handover target access network node is provided, including:

a reporting unit, configured to report current load information of a target cell to a source access network node, so that the source access network node estimates, according to the load information, a rate value after a terminal is switched from a source cell to the target cell;

a receiving unit, configured to receive a terminal handover request sent by the source access network node, where the terminal handover request is sent when a rate value determined by the source access network node after the terminal is handed over from the source cell to the target cell meets a preset condition;

a sending unit, configured to send a terminal handover request response message to the source access network node according to the terminal handover request, so that the source access network node switches the terminal from the source cell to the target cell.

With reference to the tenth aspect, in a first possible implementation manner, the source access network node and the target access network node belong to any one or any two combinations of the following:

With reference to the tenth aspect or the first possible implementation manner of the tenth aspect, in a second possible implementation manner, the source access network node is a base station or a radio network controller RNC, and the target access network node is a base station or an RNC.

With reference to the tenth aspect or the first to second possible implementation manners of the tenth aspect, in a third possible implementation manner, the load information reported by the reporting unit includes any one or a combination of any several of the following:

With reference to the tenth aspect or the first to third possible implementation manners of the tenth aspect, in a fourth possible implementation manner, the receiving unit is further configured to:

With reference to the tenth aspect or the first to fourth possible implementation manners of the tenth aspect, in a fifth possible implementation manner, the prohibition of the enhanced radio resource information that is not configured by the terminal and is indicated in the indication message received by the receiving unit includes any one of or a combination of any several of the following:

In an eleventh aspect, there is provided a target access network node, comprising:

a receiving unit, configured to receive a terminal handover request sent by a source access network node, where the terminal handover request carries indication information, and the indication information is used to indicate whether to configure enhanced radio resources for a terminal;

a sending unit, configured to send a terminal handover request response message to the source access network node when it is determined that the indication information is used to indicate information for configuring enhanced radio resources for the terminal, so that the source access network node configures radio resource information for the terminal, and switches the terminal configured with the radio resource information from a source cell to a target cell; or, when determining that the indication information is used for indicating information for prohibiting configuring the wireless resource for the terminal, sending a terminal handover request response message to the source access network node, so that the source access network node switches the terminal not configured with the wireless resource information from the source cell to the target cell.

With reference to the eleventh aspect, in a first possible implementation manner, the enhanced radio resource information that is indicated in the indication message sent by the sending unit and is prohibited from not being configured by the terminal includes any one of or a combination of any several of the following:

In a twelfth aspect, a source access network node is provided, comprising:

a sending unit, configured to send a terminal handover request to a target access network node, where the terminal handover request carries indication information, and the indication information is used to indicate whether to configure enhanced radio resources for a terminal;

a receiving unit, configured to configure radio resource information for the terminal when receiving a terminal handover request response message sent by the target access network node when the target access network node determines that the indication information is used to indicate that enhanced radio resource information is configured for the terminal, and handover the terminal configured with the radio resource information from a source cell to a target cell; or; and when receiving a terminal switching request response message sent by the target access network node when the indication information is determined to be used for indicating that the information of the wireless resources is forbidden to be configured for the terminal, switching the terminal which is not configured with the wireless resource information from the source cell to the target cell.

With reference to the twelfth aspect, in a first possible implementation manner, the enhanced radio resource information that is indicated by the indication message received by the receiving unit and is prohibited from not being configured by the terminal includes any one of or a combination of any several of the following:

In the prior art, when a terminal needs to be switched, the terminal can be switched as long as a target cell is determined to have the capacity of accommodating the terminal, but the existing method only needs to determine that the target cell has the capacity of accommodating the terminal, so that the defects of reducing service quality and reducing user experience exist; estimating a rate value of the terminal after the terminal is switched from the source cell to the target cell according to the terminal switching request; and sending a terminal switching request response message to the source access network node when the estimated switched rate value is determined to meet the preset condition, so that the source access network node switches the terminal from the source cell to the target cell.

Drawings

FIG. 1A is a flowchart of a first method for handover in an embodiment of the present invention;

FIG. 1B is a flowchart of a second method for handover in an embodiment of the present invention;

FIG. 2A is a flowchart of a third method for handover according to an embodiment of the present invention;

FIG. 2B is a flowchart of a fourth method for handover in an embodiment of the present invention;

FIG. 3A is a flowchart of a fifth method for handover in an embodiment of the present invention;

FIG. 3B is a flowchart of a fifth method for handover in an embodiment of the present invention;

FIG. 4 is a first embodiment of a handover in an embodiment of the present invention;

FIG. 5 is a second embodiment of a handover in an embodiment of the present invention;

fig. 6A is a schematic diagram of a first functional structure of a target access network node in an embodiment of the present invention;

fig. 6B is a schematic diagram of a first functional structure of a source access network node in the embodiment of the present invention;

fig. 7A is a schematic structural diagram of a first entity of a source access network node in an embodiment of the present invention;

fig. 7B is a schematic diagram of a first entity structure of a target access network node in an embodiment of the present invention;

fig. 8A is a schematic functional structure diagram of a source access network node in an embodiment of the present invention;

fig. 8B is a schematic diagram of a second functional structure of a target access network node in the embodiment of the present invention;

fig. 9A is a schematic structural diagram of a second entity of a source access network node in an embodiment of the present invention;

fig. 9B is a schematic structural diagram of a second entity of a target access network node in the embodiment of the present invention;

fig. 10A is a schematic functional structure diagram of a target access network node in an embodiment of the present invention;

fig. 10B is a schematic functional structure diagram of a source access network node in the embodiment of the present invention;

fig. 11A is a schematic structural diagram of a third entity of a source access network node in the embodiment of the present invention;

fig. 11B is a schematic structural diagram of a third entity of a target access network node in the embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The techniques described herein may be used in various communication systems, such as current 2G, 3G communication systems and next generation communication systems, such as Global System for Mobile communications (GSM), Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Wideband Code Division Multiple Access (WCDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Long Term-Division Multiple Access (Long Term-Multiple Access), single carrier-FDMA (SC-FDMA), General Packet Radio Service (GPRS), Long Term Evolution (LTE, Long Term Evolution), and other types of communication systems.

Additionally, the terms "system" and "network" are often used interchangeably herein. The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the letter "/" herein generally indicates that the former and latter associated objects are in an "or" relationship.

In order to overcome the defects of influencing the quality of service and reducing the user experience existing after the terminal is switched in the prior art, the embodiment of the invention provides a switching method, which comprises the following steps: receiving a terminal switching request sent by a source access network node; estimating a rate value of the terminal after the terminal is switched from the source cell to the target cell according to the terminal switching request; and sending a terminal switching request response message to the source access network node when the estimated switched rate value is determined to meet the preset condition, so that the source access network node switches the terminal from the source cell to the target cell.

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are merely for illustrating and explaining the present invention, and are not intended to limit the present invention, and that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

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

Referring to fig. 1A, the embodiment of the present invention provides a first detailed handover flowchart:

embodiment one (target system decision):

step 100: receiving a terminal switching request sent by a source access network node;

step 110: estimating a rate value of the terminal after the terminal is switched from the source cell to the target cell according to the terminal switching request;

step 120: and when the estimated switched rate value is determined to meet the preset condition, sending a terminal switching request response message to the source access network node so that the source access network node switches the terminal from the source cell to the target cell.

In the implementation of the present invention, the source access network node and the target access network node have various forms, for example, optionally, may belong to any one or any two combinations of the following:

GSM, CDMA system, TDMA system, WCDMA system, FDMA system, TD-SCDMA (Time Division-synchronous Code Division Multiple Access) system, and LTE system.

In the implementation of the present invention, the source access network node has various forms, optionally, a base station or a radio network Controller (radio network Controller), and the target access network node also has various forms, optionally, a base station or an RNC, where the source access network node and the target access network node are the base station or the RNC at the same time when the terminal is switched over in the same system, and the source access network node and the target access network node are the base station and the RNC when the terminal is switched over in a different system.

In the implementation of the present invention, the terminal handover request may include a plurality of contents, for example, the terminal handover request includes one or any combination of a handover indication, a radio signal measurement result, a rate value required by the terminal after the terminal is handed over, and a rate value before the terminal is handed over.

The switching type of the switching to be carried out by the portable terminal in the switching type indication is based on load;

the radio signal measurement result is used to indicate that the handover type of the handover to be performed by the terminal is a load-based handover.

When the switching type carrying the switching to be performed by the terminal in the switching type indication in the terminal switching request is load-based switching, it can be determined that the switching type of the switching to be performed by the terminal is load-based switching and then subsequent operations are performed, however, in practical applications, the terminal switching request may not directly carry the switching indication based on the load but carry a wireless signal measurement result for indicating that the switching type of the switching to be performed by the terminal is load-based switching, and when the wireless signal measurement result is obtained, it can be determined that the switching type of the switching to be performed is load-based switching and then subsequent operations are performed, of course, the terminal switching request may also simultaneously carry a switching indication based on the load for representing the wireless signal measurement result based on load switching, at this time, it may be determined that the handover type of the handover to be performed is the load-based handover according to any one of the two methods, and then the subsequent operation may be performed.

The above-mentioned radio signal measurement results include various information including, for example, the radio signal quality or signal strength of the terminal at the source system.

The radio signal measurement result may indicate that the handover type of the handover to be performed by the terminal is a load-based handover, for example, if the radio signal quality of the terminal in the source cell is greater than or equal to-18 db, the handover performed by the terminal at this time is considered as the load-based handover, and thus, when the radio signal quality of the terminal in the source cell is-2 db as shown in the radio signal measurement result, the handover to be performed by the terminal at this time is considered as the load-based handover.

Of course, if the wireless signal quality of the terminal in the source cell is-26 db, the handover performed by the terminal at this time is considered to be a coverage-based handover.

In the embodiment of the present invention, there are multiple types of handover to be performed, for example, the handover may be based on load, or may also be based on coverage, and of course, in practical applications, or along with the development of communication technology, there may be other handover types, which are not described in detail herein.

In this embodiment of the present invention, the rate value may refer to the number of bits transmitted to the terminal divided by the length of time used to transmit the number of bits to the terminal, or may refer to the number of bits transmitted by the receiving terminal divided by the length of time used to receive the number of bits transmitted by the terminal.

In the embodiment of the present invention, there are various ways to estimate the rate value after the terminal is switched from the source cell to the target cell according to the terminal switching request, for example:

acquiring current load information of a target cell;

and estimating the rate value of the terminal after the terminal is switched from the source cell to the target cell according to the terminal switching request and the load information.

For example, when the idle downlink power of the source cell is 20%, the idle downlink code channel resource is X, the idle transport block length is Y, the number of idle carriers is Z, and the number of idle processes is T, based on 20% and X, Y, Z, T, the rate value after the terminal is switched from the source cell to the target cell can be estimated, and the specific calculation method is the prior art, and is not described in detail herein. Of course, there are other implementations, and a detailed description thereof is omitted.

In this embodiment of the present invention, the load information may have various forms, for example, one or any combination of information about the number of HSPA (High-Speed Packet Access) terminals of the target cell, information about the number of code Channel resources used by the target cell, information about the code Channel resource usage ratio of the target cell, information about the CE (Channel Element) resource usage number of the target cell, information about the CE resource usage ratio of the target cell, information about the remaining power value of the target cell, and information about the remaining power ratio of the target cell.

Of course, the load information may be other forms of information, and will not be described in detail here.

Further, in the embodiment of the present invention, before determining that the estimated rate value after the switching meets the preset condition, the following operations are further included:

the rate value before the terminal is switched is reported to the core network after the source access network node is obtained by statistics; or, the core network statistics are obtained;

the rate value required by the terminal after the terminal is switched is set by the source access network node according to the rate value before the terminal is switched, and the rate value is reported to the core network; or the core network is set according to the counted speed value before the terminal is switched.

In the embodiment of the present invention, there are various ways to determine that the estimated rate value after switching satisfies the preset condition, and optionally, the following ways may be adopted:

and if the terminal switching request comprises a speed value before the terminal switching, determining that the estimated speed value after the switching is greater than or equal to the speed value before the terminal switching.

That is to say, in the embodiment of the present invention, the preset condition may have multiple forms, for example, the preset condition may be a rate value before the terminal is switched, or may also be a rate value required by the terminal after the terminal is switched, and of course, the preset condition may be larger than the rate value before the terminal is switched, or may also be smaller than the rate value before the terminal is switched.

In the implementation of the invention, the terminal switching request comprises the service type information of the terminal in the source system and/or the wireless resource configuration information of the terminal in the source system; the service type information of the terminal at the source system and/or the radio resource configuration information of the terminal at the source system can be used for estimating the rate value before the terminal is switched.

At this time, when it is determined that the estimated switched speed value is greater than or equal to the preset threshold value, the following manner may be adopted:

estimating a rate value before the terminal is switched according to the service type information of the terminal in the source system and/or the wireless resource configuration information of the terminal in the source system;

and determining that the estimated speed value after the switching is more than or equal to the speed value before the switching of the terminal.

That is, the rate value before the terminal is switched may be estimated according to the service type information of the terminal at the source system and/or the radio resource configuration information of the terminal at the source system.

In the embodiment of the present invention, there are various ways to obtain the speed value before the terminal is switched, for example, the speed value before the terminal is switched may be carried in the terminal switching request, and when the terminal switching request is received, the speed value before the terminal is switched may be obtained from the terminal switching request, and the obtained speed value before the terminal is switched may be used as the preset condition value.

Of course, other manners may also be adopted to obtain the rate value before the terminal is switched, for example, the terminal switching request includes the service type information of the terminal in the source system and/or the radio resource configuration information of the terminal in the source system;

at this time, when obtaining the rate value before the terminal is switched, the rate value may be:

and estimating the rate value before the terminal is switched according to the service type information of the terminal in the source system and/or the wireless channel configuration information of the terminal in the source system.

The service type information refers to a specific application, and may be an (File Transfer Protocol, FTP) service, or a VIDEO service, or a web service, a game service, or the like.

The radio resource configuration information may refer to configuration of a terminal bandwidth, configuration of a number of carriers, configuration of a physical channel, configuration of a transmission rate channel, and the like, and may also be other configuration information, which is not described in detail herein.

In the embodiment of the present invention, the speed value before the terminal is switched may be a speed value of the terminal at a certain time of the source system, may also be an average speed value of the terminal within a certain time period of the source system, and may also be a value obtained by multiplying the average speed value by a preset coefficient, where a value range of the preset coefficient is [0, 1 ].

Of course, the terminal handover request may not carry a specific rate value, but carries the sections with high, medium and low rate values, for example, the section (100Mbps, + ∞) for representing high rate is carried, at this time, the target access network node may perform handover when it determines that the estimated rate value is greater than 100Mbps when receiving this section.

Of course, in practical application, other modes are possible, and detailed description is omitted here.

In the embodiment of the present invention, the rate value before the terminal is switched has a plurality of modes, and can be transmitted through a standard flow, for example, the rate value before the terminal is switched is carried by a terminal switching request sent by a source access network node and sent to a core network, and the rate value is sent to a target access network node through the core network; or, the source Access Network node sends the rate value before the terminal is switched to the target Access Network node through an RIM (Radio Access Network) RAN (Radio Access Network) flow, or the source Access Network node sends the rate value before the terminal is switched to the target Access Network node through a private flow.

The above process describes a case where the estimated rate value after handover is determined to satisfy a preset condition, and in practical application, further includes a case where the estimated rate value after handover does not satisfy the preset condition. That is, when it is determined that the estimated switched rate value does not satisfy the preset condition, an access rejection message is sent to the source access network node, and the terminal is rejected to access.

In the embodiment of the present invention, optionally, the access rejection message includes a reason for rejecting the access of the terminal, for example, a reason for failing to meet a preset condition.

In the embodiment of the invention, in order to improve the access success rate, the terminal switching request comprises the identification information of the target cell;

at this time, when the terminal is switched from the source cell to the target cell, the following steps are specifically performed:

if the load capacity of the target cell corresponding to the identification information is smaller than a preset load value, switching the terminal from a source cell in a source system to the target cell; or

If the load capacity of the target cell corresponding to the identification information is greater than or equal to a preset load value, determining other cells which are positioned in the target system and adjacent to the source cell;

screening out a cell with the corresponding load capacity smaller than a load preset value from other cells;

and switching the terminal from the source cell to any one of the screened cells, wherein the signal quality of the cell is greater than a signal quality preset threshold value in order to ensure the service quality of the terminal.

In this embodiment of the present invention, the terminal handover request may further include enhanced characteristic capability information supported by the terminal, where the enhanced characteristic capability information supported by the terminal includes one or any combination of uplink multi-carrier configuration information supported by the terminal, downlink multi-carrier configuration information supported by the terminal, MIMO (Multiple Input Multiple Output) configuration information supported by the terminal, multi-stream configuration information supported by the terminal, 64QAM (Quadrature Amplitude Modulation) configuration information supported by the terminal, CLTD (Closed Loop Transmit Diversity) information supported by the terminal, and open Loop Transmit Diversity information supported by the terminal.

And after determining the enhanced characteristic capability supported by the terminal, configuring enhanced wireless channel resource information for the terminal according to the application scene.

In order to increase the rate after the terminal is switched to the target system, further, in the embodiment of the present invention,

before the terminal is switched from the source cell to the target cell, the method further comprises the following steps:

and configuring the enhanced wireless channel resource information for the terminal according to the enhanced characteristic capability information supported by the terminal.

For example, when the terminal supports Dual Cell-High Speed uplink packet Access (uplink packet Access), when the target Access network node configures enhanced radio channel resource information for the terminal, the target Access network node may allocate uplink radio channel resource information of one secondary carrier to the terminal, and include the information in the handover command.

In the embodiment of the present invention, the terminal handover request may include enhanced feature capability information supported by the terminal, but when the enhanced feature capability information supported by the terminal is acquired, the terminal may be configured with enhanced radio channel resource information according to the enhanced feature capability information supported by the terminal, or the terminal may not be configured with the enhanced radio channel resource information.

In the embodiment of the present invention, there are various conditions for triggering the configuration of the enhanced radio channel resource information for the terminal, for example, the terminal handover request carries an indication message, where the indication message is used to indicate the target access network node to configure the enhanced radio channel resource information for the terminal, and at this time, the enhanced radio channel resource information is configured for the terminal according to the enhanced characteristic capability information supported by the terminal, or when it is determined that the estimated rate value after handover does not satisfy the preset condition, the enhanced radio channel resource information is configured for the terminal according to the enhanced characteristic capability information supported by the terminal, so as to increase the rate after the terminal is handed over to the target system.

Or, even if it is determined that the estimated rate value after the handover satisfies the preset condition, in order to further increase the rate value after the terminal is handed over to the target system, the enhanced radio channel resource information may be configured for the terminal according to the enhanced feature capability information supported by the terminal, so as to increase the rate after the terminal is handed over to the target system.

Of course, when the indication message carried in the terminal handover request is obtained and used for indicating the target access network node to configure the enhanced radio channel resource information for the terminal, whether the enhanced radio channel resource information needs to be configured for the terminal according to the enhanced characteristic capability information supported by the terminal may be further determined by combining the resource information of the target system.

In the implementation of the present invention, the rate value of the terminal in the source cell or the estimated rate value in the target cell may be an uplink rate value or a downlink rate value.

In practical application, the type of handover to be performed may also be handover based on coverage, and at this time, after receiving the terminal handover request sent by the source access network node, the terminal directly sends a terminal handover request response message to the source access network node without estimating a rate value after the terminal is handed over from the source cell to the target cell, and the terminal is handed over from the source cell to the target cell.

The terminal handover request response message is directly sent to the source access network node, and it is not said that the target access network node does not make any judgment, but also judges whether the target cell has the capability of accommodating the terminal, and when it is determined that the target cell has the capability of accommodating the terminal, the terminal handover request response message is sent to the source access network node, and the terminal is handed over from the source cell to the target cell.

In the embodiment of the present invention, when determining the handover type of the handover to be performed, the handover type may be determined according to a handover indication or a radio signal measurement result included in the terminal handover request, and whether the handover type carrying the handover to be performed by the terminal in the handover type indication is a load-based handover is checked; or, whether the radio signal measurement result is a handover type for indicating that the terminal is to perform a handover is a load-based handover is checked, if so, the handover is considered to be a load-based handover, otherwise, the handover is considered to be a coverage-based handover, and of course, other determination methods are needed, which are not described in detail herein.

That is to say, when the terminal handover request includes the handover indication based on coverage or is used to characterize the measurement result of the wireless signal based on coverage handover, after receiving the terminal handover request, the terminal directly sends the terminal handover request response message to the source access network node without estimating the rate value after the terminal is handed over from the source cell to the target cell, and the terminal is handed over from the source cell to the target cell.

In practical application, in some scenarios, the quality of a wireless channel is poor, and when a source access network node sends a handover command to a terminal after configuring enhanced wireless channel resource information for the terminal, the source access network node needs to carry the wireless channel resource information configured for the terminal, so that the sent information is large, the probability of retransmission is high due to segmentation, and handover failure may occur, therefore, in the implementation of the present invention, in order to improve the handover success rate of the terminal, before sending a terminal handover request response message to the source access network node, the following operations are further included:

receiving an indication message sent by a source access network node, wherein the indication message is used for indicating a target access network node to forbid configuring enhanced wireless resource information for a terminal;

at this time, when the terminal is handed over from the source cell to the target cell, the following method may be adopted:

The above description is that the indication message explicitly indicates the target access network node to prohibit configuring the enhanced radio resource information for the terminal, and of course, in practical applications, when the indication message that the source access network node sends the indication message allowing configuring the enhanced radio resource information for the terminal is not received, the target access network node may not configure the indication message of the enhanced radio resource information for the terminal, and at this time, when the terminal is switched from the source cell to the target cell, the following manner may be adopted:

In the embodiment of the present invention, the enhanced radio channel resource information includes multiple kinds of information, and optionally, may include any one or a combination of any several of the following:

uplink multi-carrier configuration information, downlink multi-carrier configuration information, MIMO configuration information, multi-stream configuration information, 64QAM configuration information, CLTD information, and open loop transmit diversity information.

In the embodiment of the present invention, in order to improve the robustness of the link quality for the terminal to be switched to the target cell, further, the target system may select a plurality of cells to configure the macro diversity according to the measurement result of the radio signal, and notify the terminal to perform the immediate macro diversity in the switching command, that is, establish a connection between the terminal and each cell included in the macro diversity.

In the above process, before sending a terminal handover request response message to a source access network node and handing over a terminal from a source cell to a target cell, it is further determined whether the target cell has a capability of accommodating the terminal, and the terminal is accessed to the target cell only when the target cell has the capability of accommodating the terminal.

Referring to fig. 1B, the embodiment of the present invention provides a second detailed handover flowchart:

example two (target system decision):

step 1000: sending a terminal switching request to a target access network node;

step 1100: receiving a terminal switching request response message sent by a target access network node, and switching a terminal from a source cell to a target cell; and the terminal switching request response message is sent when the target access network node determines that the speed value of the terminal after the terminal is switched from the source cell to the target cell, which is estimated according to the terminal switching request, meets the preset condition.

GSM, CDMA system, TDMA system, WCDMA system, FDMA system, TD-SCDMA system, LTE system.

In the implementation of the present invention, the source access network node has multiple forms, optionally, a base station or a wireless RNC, and the target access network node also has multiple forms, optionally, a base station or an RNC, where when the terminal is handed over in the same system, the source access network node and the target access network node are the base station or the RNC at the same time, and when the terminal is handed over in a different system, the source access network node and the target access network node are the base station and the RNC.

The terminal switching request comprises service type information of the terminal in the source cell and/or wireless resource configuration information of the terminal in the source cell;

the service type information of the terminal in the source cell and/or the wireless resource configuration information of the terminal in the source cell are used for the target access network node to estimate the rate value before the terminal is switched.

The above process describes a process that the estimated rate value of the terminal after being switched from the source cell to the target cell meets the preset condition, in practical application, the estimated rate value of the terminal after being switched from the source cell to the target cell may not meet the preset condition, at this time, an access rejection message sent by the target access network node is received, and the terminal is rejected to be accessed;

and the access refusing message is sent when the target access network node determines that the estimated switched speed value does not meet the preset condition.

Optionally, the access rejection message includes a reason for rejecting the access of the terminal.

In practical application, in some scenarios, the quality of a wireless channel is poor, and when a source access network node sends a handover command to a terminal after configuring enhanced wireless channel resource information for the terminal, the source access network node needs to carry the wireless channel resource information configured for the terminal, so that the sent information is large, and the probability of retransmission is high due to segmentation, and handover failure may occur, therefore, in the implementation of the present invention, in order to improve the handover success rate of the terminal, further, before receiving a terminal handover request response message sent by a target access network node, the following operations are further included:

sending an indication message to a target access network node, wherein the indication message is used for indicating the target access network node to forbid configuring enhanced wireless resource information for the terminal;

at this time, the terminal is switched from the source cell to the target cell, which may specifically be:

The above description is that the indication message explicitly indicates the target access network node to prohibit configuring the enhanced radio resource information for the terminal, and of course, in practical applications, when the indication message allowing the terminal to be configured with the enhanced radio resource information is not sent to the target access network node, the target access network node may not configure the terminal with the indication message of the enhanced radio resource information, and at this time, when the terminal is switched from the source cell to the target cell, the following manner may be adopted:

In the embodiment of the present invention, the enhanced radio resource information has various forms, for example, any one or a combination of any several of the following forms: the uplink multi-carrier configuration information, the downlink multi-carrier configuration information, the MIMO configuration information, the multi-stream configuration information, the 64QAM configuration information, the CLTD information, and the open-loop transmit diversity information may also include other information in practical application, and detailed description is not repeated here.

Referring to fig. 2A, the embodiment of the present invention provides a third detailed handover flowchart:

example three (source system decision):

step 200: receiving current load information of a target cell reported by a target access network node;

step 210: estimating a rate value of the terminal after the terminal is switched from the source cell to the target cell according to the load information;

step 220: when the estimated speed value is determined to meet the preset condition, a terminal switching request is sent to a target access network node;

step 230: and when receiving a terminal switching request response message sent by the target access network node according to the terminal switching request, switching the terminal from the source cell to the target cell.

In the implementation of the present invention, the load information has various forms, for example, any one or any combination of the following may be included:

the method comprises the steps of HSPA terminal number information of a target cell, code channel resource usage number information of the target cell, code channel resource usage proportion information of the target cell, CE resource occupation number information of the target cell, CE resource occupation proportion information of the target cell, residual power value information of the target cell and residual power proportion information of the target cell.

In the implementation of the present invention, there are various ways to determine that the estimated speed value satisfies the preset condition, and optionally, the following ways may be adopted:

In the implementation of the invention, optionally, the speed value before the terminal is switched is obtained by statistics; or, the information may be obtained according to the service type information of the terminal in the source cell and/or the radio resource configuration information of the terminal in the source cell.

Further, in this embodiment of the present invention, in order to improve the handover success rate, before receiving a terminal handover request response message sent by a target access network node, the method further includes:

sending an indication message to a target access network node;

the indication message is used for indicating the target access network node to forbid configuring enhanced wireless resource information for the terminal;

at this time, when the terminal is handed over from the source cell to the target cell, optionally, the following steps may be performed:

In the implementation of the present invention, optionally, the enhanced radio resource information includes any one or a combination of any several of the following:

uplink multi-carrier information, downlink multi-carrier information, MIMO information, multi-stream information, band combination information, 64QAM information, CLTD information, open loop transmit diversity information.

In the embodiment of the present invention, the speed value before the terminal is switched may be a speed value of the terminal at a certain time in the source cell, may also be an average speed value of the terminal in a certain time period in the source cell, and may also be a value obtained by multiplying the average speed value by a preset coefficient, where a value range of the preset coefficient is [0, 1 ].

Referring to fig. 2B, the embodiment of the present invention provides a detailed flow chart of the handover between the fourth inter-system:

example four (source system decision):

step 2000: reporting the current load information of the target cell to a source access network node so that the source access network node estimates the rate value of the terminal after the terminal is switched from the source cell to the target cell according to the load information;

step 2100: receiving a terminal switching request sent by a source access network node, wherein the terminal switching request is sent when the source access network node determines that an estimated speed value of a terminal switched from a source cell to a target cell meets a preset condition;

step 2200: and sending a terminal switching request response message to the source access network node according to the terminal switching request so that the source access network node switches the terminal from the source cell to the target cell.

In the implementation of the present invention, the source access network node has multiple forms, optionally, a base station or an RNC, and the target access network node also has multiple forms, optionally, a base station or an RNC, wherein when the terminal is switched in the same system, the source access network node and the target access network node are the base station or the RNC at the same time, and when the terminal is switched in a different system, the source access network node and the target access network node are the base station and the RNC.

Further, in the embodiment of the present invention, in order to improve the handover success rate, before sending the terminal handover request response message to the source access network node, the following operations are further included:

and receiving an indication message sent by the source access network node, wherein the indication message is used for indicating the target access network node to forbid configuring the enhanced wireless resource information for the terminal.

In this case, when the terminal is handed over from the source cell to the target cell, the following may be performed:

Referring to fig. 3A, the embodiment of the present invention provides a fifth switching detailed flowchart:

EXAMPLE five

Step 300: receiving a terminal switching request sent by a source access network node, wherein the terminal switching request carries indication information which is used for indicating whether enhanced wireless resources are configured for a terminal or not;

step 310: when the indication information is determined to be used for indicating the information for configuring the enhanced wireless resources for the terminal, sending a terminal switching request response message to the source access network node so that the source access network node configures the wireless resource information for the terminal, and switching the terminal configured with the wireless resource information from the source cell to the target cell; or when the indication information is determined to be used for indicating the information for forbidding the configuration of the wireless resources for the terminal, sending a terminal switching request response message to the source access network node, so that the source access network node switches the terminal which is not configured with the wireless resource information from the source cell to the target cell.

Referring to fig. 3B, the embodiment of the present invention provides a sixth handover detailed flowchart:

EXAMPLE six

Step 3000: a terminal switching request is sent to a target access network node, wherein the terminal switching request carries indication information, and the indication information is used for indicating whether enhanced wireless resources are configured for the terminal;

step 3100: when receiving a terminal switching request response message sent by a target access network node when the indication information is determined to be used for indicating the information for configuring the enhanced wireless resources for the terminal, configuring the wireless resource information for the terminal, and switching the terminal configured with the wireless resource information from a source cell to a target cell; or; and when receiving a terminal switching request response message sent by the target access network node when the indication information is determined to be used for indicating that the information of the wireless resources is forbidden to be configured for the terminal, switching the terminal which is not configured with the wireless resource information from the source cell to the target cell.

For better understanding of the embodiments of the present invention, specific application scenarios are given below, and further detailed description is made for a handover process between different systems:

EXAMPLE seven (flow chart specifically as shown in FIG. 4)

Step 400: a source access network node sends a terminal switching request to a target access network node;

in this step, the terminal switching request carries the rate value before the terminal is switched.

Step 410: when a target access network node receives a speed value obtained from a terminal switching request before terminal switching, determining the current load information of a target cell;

step 420: estimating a rate value of the terminal after the terminal is switched from the source cell to the target cell according to the terminal switching request and the load information;

step 430: and when the target access network node determines that the estimated switched speed value reaches the speed value before the terminal is switched, the target access network node sends a terminal switching request response message to the source access network node and switches the terminal from the source cell to the target cell.

EXAMPLE eight (flow chart specifically shown in FIG. 5)

Step 500: the target access network node reports the load information of the target cell to the source access network node;

step 510: the source access network node estimates a rate value of the terminal after the terminal is switched from the source cell to the target cell according to the load information;

step 520: when the source access network node determines that the estimated speed value meets the preset condition, a terminal switching request is sent to a target access network node;

step 530: a source access network node sends an indication message to a target access network node;

in this step, the indication message is used to indicate the target access network node to prohibit configuring the enhanced radio resource information for the terminal.

Step 540: and when the source access network node receives a terminal switching request response message sent by the target access network node according to the terminal switching request, the terminal which is not configured with the enhanced wireless resource information is switched from the source cell to the target cell.

Based on the above technical solution, referring to fig. 6A, an embodiment of the present invention correspondingly provides a target access network node, where the access network node includes a receiving unit 60, an estimating unit 61, and a sending unit 62, where:

a receiving unit 60, configured to receive a terminal switching request sent by a source access network node;

an estimating unit 61, configured to estimate a rate value after the terminal is switched from the source cell to the target cell according to the terminal switching request;

a sending unit 62, configured to send a terminal handover request response message to the source access network node when it is determined that the estimated rate value after handover meets a preset condition, so that the source access network node switches the terminal from the source cell to the target cell.

Optionally, in the embodiment of the present invention, the source access network node and the target access network node belong to any one or any combination of the following two types:

GSM, CDMA system, TDMA system, WCDMA system, FDMA system, TD-SCDMA system, LTE system, UMTS system.

Optionally, in the embodiment of the present invention, the source access network node is a base station or a radio network controller RNC, and the target access network node is a base station or an RNC.

Optionally, in this embodiment of the present invention, the terminal switching request received by the receiving unit 60 includes any one or a combination of any several of the following:

switching type indication, wireless signal measurement result, rate value required by the terminal after terminal switching, and rate value before terminal switching;

Optionally, in an embodiment of the present invention, the estimating unit 61 is specifically configured to:

acquiring current load information of a target cell;

Optionally, in this embodiment of the present invention, the load information acquired by the estimating unit 61 includes any one or a combination of any several of the following:

Further, in this embodiment of the present invention, the receiving unit 60 is further configured to:

Optionally, in this embodiment of the present invention, the sending unit 62 is specifically configured to:

Optionally, in this embodiment of the present invention, the terminal handover request received by the receiving unit 60 includes service type information of the terminal in the source cell and/or radio resource configuration information of the terminal in the source cell;

when the sending unit 62 determines that the estimated switched rate value is greater than or equal to the preset threshold value, specifically:

Optionally, in this embodiment of the present invention, the apparatus further includes a denial of access unit 63, where the denial of access unit 63 is configured to:

Optionally, in this embodiment of the present invention, the access denial message sent by the access denial unit 63 includes a reason for denying the access of the terminal.

Further, in this embodiment of the present invention, the receiving unit 60 is further configured to: and receiving an indication message sent by the source access network node, wherein the indication message is used for indicating the target access network node to forbid configuring enhanced wireless resource information for the terminal.

Optionally, in this embodiment of the present invention, the information that the receiving unit 60 prohibits the enhanced radio resource configured for the terminal includes any one of the following or a combination of any several of the following:

Based on the above technical solution, referring to fig. 6B, an embodiment of the present invention correspondingly provides a source access network node, where the source access network node includes a sending unit 600 and a switching unit 610, where:

a sending unit 600, configured to send a terminal switching request to a target access network node;

a switching unit 610, configured to receive a terminal switching request response message sent by a target access network node, and switch a terminal from a source cell to a target cell;

and the terminal switching request response message is sent when the target access network node determines that the speed value of the terminal after the terminal is switched from the source cell to the target cell, which is estimated according to the terminal switching request, meets the preset condition.

Optionally, in the embodiment of the present invention, the source access network node is a base station or an RNC, and the target access network node is a base station or an RNC.

Optionally, in this embodiment of the present invention, the terminal switching request sent by the sending unit 600 includes any one or a combination of any several of the following:

Optionally, in this embodiment of the present invention, the terminal handover request sent by the sending unit 600 includes service type information of the terminal in the source cell and/or radio resource configuration information of the terminal in the source cell;

Further, in the embodiment of the present invention, the apparatus further includes a receiving unit 620, where the receiving unit 620 is configured to:

receiving an access rejection message sent by a target access network node, and rejecting terminal access;

Optionally, in this embodiment of the present invention, the access denial message received by the receiving unit 620 includes a reason for denying the access of the terminal.

Further, in this embodiment of the present invention, the sending unit 600 is further configured to:

the switching unit 610 is specifically configured to:

Optionally, in this embodiment of the present invention, the information for prohibiting the enhanced radio resource not configured by the terminal, which is indicated in the indication message sent by the sending unit 600, includes any one of the following or a combination of any several of the following:

As shown in fig. 7A, which is a physical device diagram of a target access network node according to an embodiment of the present invention, the target access network node includes at least one processor 701, a communication bus 702, a memory 703 and at least one communication interface 704.

The communication bus 702 is used for realizing connection and communication among the above components, and the communication interface 704 is used for connecting and communicating with an external device.

The memory 703 is used to store program codes to be executed, and the program codes may specifically include: receiving unit 7031, estimating unit 7032, and transmitting unit 7033, which when executed by processor 701, implement the following functions:

a receiving unit 7031, configured to receive a terminal switching request sent by a source access network node;

an estimating unit 7032, configured to estimate, according to the terminal handover request, a rate value after the terminal is handed over from the source cell to the target cell;

a sending unit 7033, configured to send a terminal handover request response message to the source access network node when it is determined that the estimated rate value after handover meets a preset condition, so that the source access network node switches the terminal from the source cell to the target cell.

As shown in fig. 7B, a physical device diagram of a source access network node provided by the embodiment of the present invention is shown, where the source access network node includes at least one processor 7001, a communication bus 7002, a memory 7003, and at least one communication interface 7004.

The communication bus 7002 is used for realizing connection and communication among the above components, and the communication interface 7004 is used for connecting and communicating with an external device.

The memory 7003 is used for storing program codes to be executed, and the program codes may specifically include: a transmitting unit 70031, a switching unit 70032, which when executed by the processor 7001, implement the following functions:

a sending unit 70031, configured to send a terminal switching request to a target access network node;

a switching unit 70032, configured to receive a terminal switching request response message sent by a target access network node, and switch a terminal from a source cell to a target cell;

Based on the above technical solution, referring to fig. 8A, an embodiment of the present invention correspondingly provides a source access network node, where the source access network node includes a receiving unit 80, an estimating unit 81, a sending unit 82, and a switching unit 83, where:

a receiving unit 80, configured to receive current load information of a target cell reported by a target access network node;

an estimating unit 81, configured to estimate a rate value after the terminal is switched from the source cell to the target cell according to the load information;

a sending unit 82, configured to send a terminal switching request to a target access network node when it is determined that the estimated rate value meets a preset condition;

and a switching unit 83, configured to switch the terminal from the source cell to the target cell when receiving a terminal handover request response message sent by the target access network node according to the terminal handover request.

Optionally, in this embodiment of the present invention, the load information received by the receiving unit includes any one or a combination of any several of the following:

Optionally, in this embodiment of the present invention, the sending unit 82 is specifically configured to:

Optionally, in this embodiment of the present invention, the rate value used by the sending unit 82 before the terminal is switched is obtained by statistics; or

The rate value before the terminal is switched, which is used by the sending unit 82, is obtained according to the service type information of the terminal in the source cell and/or the radio resource configuration information of the terminal in the source cell.

Further, in this embodiment of the present invention, the sending unit 82 is further configured to:

sending an indication message to a target access network node;

the indication message is used for indicating the target access network node to forbid configuring the enhanced wireless resource information for the terminal.

Optionally, in the embodiment of the present invention, the switching unit 83 is specifically configured to:

Optionally, in this embodiment of the present invention, the information for prohibiting the enhanced radio resource not configured by the terminal, which is indicated in the indication message sent by the sending unit 82, includes any one of or a combination of any several of the following:

Based on the above technical solution, referring to fig. 8B, an embodiment of the present invention correspondingly provides a target access network node, where the target access network node includes a reporting unit 800, a receiving unit 810, and a sending unit 820, where:

a reporting unit 800, configured to report current load information of a target cell to a source access network node, so that the source access network node estimates, according to the load information, a rate value after a terminal is switched from a source cell to the target cell;

a receiving unit 810, configured to receive a terminal handover request sent by a source access network node, where the terminal handover request is sent when the source access network node determines that an estimated rate value of a terminal after being handed over from a source cell to a target cell meets a preset condition;

a sending unit 820, configured to send a terminal handover request response message to the source access network node according to the terminal handover request, so that the source access network node switches the terminal from the source cell to the target cell.

Optionally, in this embodiment of the present invention, the load information reported by the reporting unit 800 includes any one or a combination of any several of the following:

Further, in this embodiment of the present invention, the receiving unit 810 is further configured to:

Optionally, in this embodiment of the present invention, the information for prohibiting the enhanced radio resource not configured by the terminal, which is indicated in the indication message received by the receiving unit 810, includes any one of or a combination of any several of the following:

As shown in fig. 9A, which is a physical device diagram of a source access network node according to an embodiment of the present invention, the source access network node includes at least one processor 901, a communication bus 902, a memory 903, and at least one communication interface 904.

The communication bus 902 is used for realizing connection and communication among the above components, and the communication interface 904 is used for connecting and communicating with an external device.

The memory 903 is used to store program codes to be executed, and the program codes may specifically include: the receiving unit 9031, the estimating unit 9032, the sending unit 9033, and the switching unit 9034, when executed by the processor 901, implement the following functions:

a receiving unit 9031, configured to receive current load information of the target cell, which is reported by the target access network node;

an estimating unit 9032, configured to estimate a rate value after the terminal is switched from the source cell to the target cell according to the load information;

a sending unit 9033, configured to send a terminal handover request to the target access network node when it is determined that the estimated rate value meets the preset condition;

a switching unit 9034, configured to switch the terminal from the source cell to the target cell when receiving a terminal switching request response message sent by the target access network node according to the terminal switching request.

As shown in fig. 9B, which is a physical device diagram of a target access network node provided in an embodiment of the present invention, the target access network node includes at least one processor 9001, a communication bus 9002, a memory 9003, and at least one communication interface 9004.

Among them, a communication bus 9002 is used for connection and communication among the above components, and a communication interface 9004 is used for connection and communication with an external device.

The memory 9003 is used for storing program codes to be executed, and the program codes may specifically include: the reporting unit 90031, the receiving unit 90032, and the sending unit 90033, when being executed by the processor 9001, implement the following functions:

a reporting unit 90031, configured to report current load information of the target cell to the source access network node, so that the source access network node estimates, according to the load information, a rate value after the terminal is switched from the source cell to the target cell;

a receiving unit 90032, configured to receive a terminal handover request sent by a source access network node, where the terminal handover request is sent when the source access network node determines that a rate value after an estimated terminal is handed over from a source cell to a target cell meets a preset condition;

a sending unit 90033, configured to send a terminal handover request response message to the source access network node according to the terminal handover request, so that the source access network node switches the terminal from the source cell to the target cell.

Based on the above technical solution, referring to fig. 10A, an embodiment of the present invention correspondingly provides a target access network node, where the target access network node includes a receiving unit 10 and a sending unit 11, where:

a receiving unit 10, configured to receive a terminal switching request sent by a source access network node, where the terminal switching request carries indication information, and the indication information is used to indicate whether to configure enhanced radio resources for a terminal;

a sending unit 11, configured to send a terminal handover request response message to the source access network node when it is determined that the indication information is used to indicate information for configuring enhanced radio resources for the terminal, so that the source access network node configures radio resource information for the terminal, and switches the terminal configured with the radio resource information from the source cell to the target cell; or when the indication information is determined to be used for indicating the information for forbidding the configuration of the wireless resources for the terminal, sending a terminal switching request response message to the source access network node, so that the source access network node switches the terminal which is not configured with the wireless resource information from the source cell to the target cell.

Optionally, in this embodiment of the present invention, the information for prohibiting the enhanced radio resource not configured by the terminal, which is indicated in the indication message sent by the sending unit 11, includes any one of the following or a combination of any several of the following:

Based on the above technical solution, referring to fig. 10B, an embodiment of the present invention correspondingly provides a source access network node, where the target access network node includes a sending unit 100 and a receiving unit 110, where:

a sending unit 100, configured to send a terminal handover request to a target access network node, where the terminal handover request carries indication information, and the indication information is used to indicate whether to configure enhanced radio resources for a terminal;

a receiving unit 110, configured to configure radio resource information for a terminal when receiving a terminal handover request response message sent when the target access network node determines that the indication information is used to indicate that enhanced radio resource information is configured for the terminal, and handover the terminal configured with the radio resource information from a source cell to a target cell; or; and when receiving a terminal switching request response message sent by the target access network node when the indication information is determined to be used for indicating that the information of the wireless resources is forbidden to be configured for the terminal, switching the terminal which is not configured with the wireless resource information from the source cell to the target cell.

Optionally, in this embodiment of the present invention, the information for prohibiting the enhanced radio resource not configured by the terminal, which is indicated in the indication message received by the receiving unit 110, includes any one of or a combination of any several of the following:

As shown in fig. 11A, which is a physical device diagram of a target access network node according to an embodiment of the present invention, the target access network node includes at least one processor 1101, a communication bus 1102, a memory 1103 and at least one communication interface 1104.

The communication bus 1102 is used for realizing connection and communication among the above components, and the communication interface 1104 is used for connecting and communicating with an external device.

The memory 1103 is configured to store program codes that need to be executed, where the program codes may specifically include: receiving unit, transmitting unit 11032, when the above units are executed by processor 1101, implement the following functions:

a receiving unit 11031, configured to receive a terminal handover request sent by a source access network node, where the terminal handover request carries indication information, and the indication information is used to indicate whether to configure enhanced radio resources for a terminal;

a sending unit 11032, configured to send a terminal handover request response message to the source access network node when it is determined that the indication information is used to indicate information for configuring enhanced radio resources for the terminal, so that the source access network node configures radio resource information for the terminal, and switches the terminal configured with the radio resource information from the source cell to the target cell; or when the indication information is determined to be used for indicating the information for forbidding the configuration of the wireless resources for the terminal, sending a terminal switching request response message to the source access network node, so that the source access network node switches the terminal which is not configured with the wireless resource information from the source cell to the target cell.

As shown in fig. 11B, which is an entity apparatus diagram of a source access network node provided in the embodiment of the present invention, the source access network node includes at least one processor 11001, a communication bus 11002, a memory 11003, and at least one communication interface 11004.

The communication bus 11002 is used to realize connection and communication between the above components, and the communication interface 11004 is used to connect and communicate with an external device.

The memory 11003 is used for storing program codes to be executed, and the program codes may specifically include: a transmitting unit 110031, a receiving unit 110032, which when executed by the processor 11001, perform the following functions:

a sending unit 110031, configured to send a terminal handover request to a target access network node, where the terminal handover request carries indication information, and the indication information is used to indicate whether to configure enhanced radio resources for a terminal;

a receiving unit 110031, configured to configure radio resource information for the terminal when receiving a terminal handover request response message sent when the target access network node determines that the indication information is used to indicate that enhanced radio resource is configured for the terminal, and handover the terminal configured with the radio resource information from the source cell to the target cell; or; and when receiving a terminal switching request response message sent by the target access network node when the indication information is determined to be used for indicating that the information of the wireless resources is forbidden to be configured for the terminal, switching the terminal which is not configured with the wireless resource information from the source cell to the target cell.

In summary, the embodiment of the present invention provides a handover method, where the method includes: receiving a terminal switching request sent by a source access network node; estimating a rate value of the terminal after the terminal is switched from the source cell to the target cell according to the terminal switching request; and when the estimated switched speed value reaches the preset threshold value, sending a terminal switching request response message to the source access network node, and switching the terminal from the source cell to the target cell.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.

It will be apparent to those skilled in the art that various modifications and variations can be made in the embodiments of the present invention without departing from the spirit or scope of the embodiments of the invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to encompass such modifications and variations.

Claims

1. A method of handover, comprising:

receiving a terminal switching request sent by a source access network node;

2. The method of claim 1, wherein the source access network node and the target access network node belong to any one or any combination of two of:

3. The method according to claim 1 or 2, wherein the source access network node is a base station or a radio network controller, RNC, and the target access network node is a base station or an RNC.

4. A method according to any one of claims 1 to 3, wherein the terminal handover request includes any one or a combination of any of:

5. The method according to any of claims 1-4, wherein estimating a rate value after the terminal is handed over from the source cell to the target cell according to the terminal handover request comprises:

acquiring current load information of the target cell;

6. The method of claim 5, wherein the load information comprises any one or a combination of any of the following:

7. The method of any one of claims 1-6, wherein before determining that the estimated post-handover rate value satisfies the preset condition, further comprising:

8. The method according to any of claims 4-7, wherein determining that the estimated post-handover rate value satisfies a predetermined condition comprises:

9. The method according to any of claims 1-8, wherein the terminal handover request includes service type information of the terminal in the source cell and/or radio resource configuration information of the terminal in the source cell;

10. The method of any one of claims 1-9, further comprising:

11. The method of claim 10, wherein the deny access message includes a reason for denying access to the terminal.

12. The method of any of claims 1-11, wherein prior to sending a terminal handover request response message to the source access network node, further comprising:

13. The method of claim 12, wherein the enhanced radio resource information comprises any one or a combination of any of the following:

14. A method of handover, comprising:

sending a terminal switching request to a target access network node;

15. The method of claim 14, wherein a source access network node and the target access network node belong to any one or any combination of:

16. A method according to claim 14 or 15, wherein the source access network node is a base station or a radio network controller, RNC, and the target access network node is a base station or an RNC.

17. The method according to any of claims 14-16, wherein the terminal handover request comprises any one or a combination of any of the following:

18. The method according to claim 17, wherein the terminal handover request includes service type information of the terminal in the source cell and/or radio resource configuration information of the terminal in the source cell;

19. The method of any one of claims 14-18, further comprising:

20. The method of claim 19, wherein the deny access message includes a reason for denying access to the terminal.

21. The method according to any of claims 14-20, further comprising, before receiving the terminal handover request response message sent by the target access network node:

22. The method of claim 21, wherein the enhanced radio resource information comprises any one or a combination of any of the following:

23. A method of handover, comprising:

24. The method of claim 23, wherein a source access network node and the target access network node belong to any one or any combination of:

25. A method according to claim 23 or 24, wherein the source access network node is a base station or a radio network controller, RNC, and the target access network node is a base station or an RNC.

26. The method according to any of claims 23-25, wherein the load information comprises any one or a combination of any of the following:

27. A method according to any one of claims 23 to 26, wherein determining that the estimated rate value satisfies a predetermined condition comprises:

28. The method of claim 27, wherein the rate value before the terminal is switched is statistically derived; or

29. The method according to any of claims 23-28, wherein prior to receiving the terminal handover request response message sent by the target access network node, further comprising:

sending an indication message to the target access network node;

30. The method according to any of claims 23-29, wherein the enhanced radio resource information comprises any one or a combination of any of the following:

31. A method of handover, comprising:

32. The method of claim 31, wherein the source access network node and the target access network node belong to any one or any combination of:

33. The method according to claim 31 or 32, wherein said source access network node is a base station or a radio network controller, RNC, and said target access network node is a base station or an RNC.

34. The method according to any of claims 31-33, wherein the load information comprises any one or a combination of any of the following:

35. The method of any of claims 31-34, wherein prior to sending a terminal handover request response message to the source access network node, further comprising:

receiving an indication message sent by the source access network node, wherein the indication message is used for indicating the target access network node to forbid configuring enhanced wireless resource information for the terminal;

36. The method according to any of claims 31-35, wherein the enhanced radio resource information comprises any one or a combination of any of the following:

37. A target access network node, comprising:

38. The target access network node of claim 37, wherein the source access network node and the target access network node belong to any one or any combination of:

39. The target access network node of claim 37 or 38, wherein the source access network node is a base station or a radio network controller, RNC, and the target access network node is a base station or an RNC.

40. The target access network node of any of claims 37-39, wherein the terminal handover request received by the receiving unit comprises any one or a combination of any of the following:

41. The target access network node of any of claims 37-40, wherein the estimating unit is specifically configured to:

acquiring current load information of the target cell;

42. The target access network node of claim 41, wherein the load information obtained by the estimating unit comprises any one or any combination of the following:

43. The target access network node of any of claims 37-42, wherein the receiving unit is further to:

44. The target access network node of any of claims 40-43, wherein the sending unit is specifically configured to:

45. The target access network node of any of claims 37-44, wherein the terminal handover request received by the receiving unit includes service type information of the terminal in the source cell and/or radio resource configuration information of the terminal in the source cell;

46. The target access network node of any of claims 37-45, further comprising a deny access unit to:

47. The target access network node of claim 46, wherein the deny access message sent by the deny access unit includes a reason for denying access to the terminal.

48. The target access network node of any of claims 37-47, wherein the receiving unit is further to:

49. The target access network node of claim 48, wherein the receiving unit prohibits the enhanced radio resource information configured for the terminal from including any one or a combination of any of the following:

50. A source access network node, comprising:

51. The source access network node of claim 50, wherein the source access network node and the target access network node belong to any one or any combination of:

52. The source access network node according to claim 50 or 51, wherein the source access network node is a base station or a radio network controller, RNC, and the target access network node is a base station or an RNC.

53. The source access network node according to any of claims 50-52, wherein the terminal handover request sent by the sending unit comprises any one or any combination of the following:

54. The source access network node in claim 53, wherein the terminal handover request sent by the sending unit includes service type information of the terminal in the source cell and/or radio resource configuration information of the terminal in the source cell;

55. The source access network node of any of claims 50-54, further comprising a receiving unit to:

56. The source access network node of claim 55, wherein the deny access message received by the receiving unit includes a reason for denying access to the terminal.

57. The source access network node of any of claims 50-56, wherein the sending unit is further to:

the switching unit is specifically configured to:

58. The source access network node in claim 57, wherein the information for prohibiting the enhanced radio resources not configured by the terminal indicated in the indication message sent by the sending unit includes any one or a combination of any several of the following:

59. A source access network node, comprising:

60. The source access network node of claim 59, wherein the source access network node and the target access network node belong to any one or any combination of two of:

61. The source access network node of claim 59 or 60, wherein the source access network node is a base station or a radio network controller, RNC, and the target access network node is a base station or an RNC.

62. The source access network node in any of claims 59-61, wherein the load information received by the receiving unit comprises any one or a combination of any of:

63. The source access network node of any of claims 59-62, wherein the sending unit is specifically configured to:

64. The source access network node in claim 63, wherein the rate value before the terminal used by the sending unit is switched is obtained by statistics; or

65. The source access network node of any of claims 59-64, wherein the sending unit is further to:

sending an indication message to the target access network node;

the switching unit is specifically configured to:

66. The source access network node in any of claims 59-65, wherein the enhanced radio resource information that is indicated in the indication message sent by the sending unit and is prohibited from being configured by the terminal comprises any one of or a combination of any several of the following:

67. A handover target access network node, comprising:

68. The target access network node of claim 67, wherein the source access network node and the target access network node belong to any one or any combination of:

69. The target access network node of claim 67 or 68, wherein said source access network node is a base station or a radio network controller, RNC, and said target access network node is a base station or an RNC.

70. The target access network node of any of claims 67-69, wherein the load information reported by the reporting unit includes any one or a combination of any of the following:

71. The target access network node of any of claims 67-70, wherein the receiving unit is further to:

72. The target access network node in any of claims 67-71, wherein the enhanced radio resource information indicated in the indication message received by the receiving unit to prohibit non-configuration by the terminal comprises any one or a combination of any of the following: