CN104684104B

CN104684104B - A kind of dual link method, dual link switching method and corresponding system and equipment

Info

Publication number: CN104684104B
Application number: CN201310632323.8A
Authority: CN
Inventors: 江小威; 陈卓; 杨宁
Original assignee: China Mobile Communications Group Co Ltd
Current assignee: China Mobile Communications Group Co Ltd
Priority date: 2013-11-29
Filing date: 2013-11-29
Publication date: 2018-08-31
Anticipated expiration: 2033-11-29
Also published as: CN104684104A

Abstract

The invention discloses a kind of dual link method, dual link switching method, system and equipment, macro base station is after determining dual link mode and establishing E RAB with micro-base station, connection reconfiguration message is sent to terminal, the content for the micro-base station configuration information that the terminal includes according to the connection reconfiguration message received determines the dual link mode of actual use, overcomes the problem of terminal can not know dual link mode in current 3GPP standards.

Description

A kind of dual link method, dual link switching method and corresponding system and equipment

Technical field

The present invention relates to a kind of wireless communication field more particularly to dual link method, system and equipment and dual links to cut Change method, system and equipment.

Background technology

Base station is widely deployed as the important equipment in wireless communication technique, industry according to the coverage area of base station and Base station is divided into macro base station and micro-base station by transmission power, wherein the region that macro base station is covered is known as macrocell（macro- cell）, the region that micro-base station is covered is known as Microcell, Microcell here can be micro cell, pico cell or femto cell。

In order to ensure the continuity of the network coverage, 3GPP（3^rdGeneration Partnership Project, third For affiliate）The framework for increasing several micro-base stations in macro base station coverage area is proposed in standard, utilizes macro base station reality The seamless continuous covering in existing region, in hot zones（Such as densely populated place）Overlapping covering is carried out using micro-base station, by micro- base It stands and provides preferably network service for the larger business demand amount of hot zones, network coverage quality is improved with this, is increased Throughput of system.

In 3GPP R12 standards, it is proposed that terminal is connected to the scheme on macro base station and micro-base station simultaneously, and terminal can be same When communicated with macro base station and micro-base station, realize terminal and macro base station and micro-base station dual link, as shown in Figure 1, with raising Load balancing between base station, and the handling capacity of terminal can be improved to a certain extent.Currently, 3GPP defines two kinds of doubly-linkeds Connect scheme：

Scheme one：

During downlink, the gateway in core net（S-GW）After data are transmitted directly to micro-base station, then by micro- Base station is sent to terminal；During uplink, after data are reported to micro-base station by terminal, then S- is directly reported to by micro-base station GW, scheme one can be referred to as non-bearing separation（Non- bearer-splitting）Resource polymerization scheme, i.e.,：Micro-base station is sent to The data of terminal are directly issued by S-GW.

Scheme two：

During downlink, data are first sent to macro base station by S-GW, after forwarding the data to micro-base station by macro base station, then Terminal is handed down to by micro-base station；During uplink, data are reported to micro-base station by terminal, are forwarded the data to by micro-base station macro Behind base station, then S-SW is sent to by macro base station, scheme two can be referred to as carrying separation（bearer-splitting）Resource it is poly- Conjunction scheme, i.e.,：The data that micro-base station is sent to terminal are forwarded by macro base station.

Currently, defining only both dual link schemes in 3GPP, still, terminal can not know pair actually used at that time Connection type, therefore, it is necessary to find suitable scheme terminal is made to know that used dual link mode is bearer- Splitting modes are also non-bearer-splitting modes.

Invention content

An embodiment of the present invention provides a kind of dual link method, dual link switching method, system and equipment, to current Terminal can not know the problem of dual link mode in 3GPP schemes.

The embodiment of the present invention describes a kind of dual link method, the method includes：

Macro base station determines that the dual link mode of terminal is that the resource polymerization of carrying separation or the resource of non-bearing separation are gathered It closes；

After establishing radio access bearer E-RAB between macro base station and the micro-base station of terminal access, sends and wrap to the terminal Connection reconfiguration message containing the micro-base station configuration information indicates that the terminal determines dual link according to the connection reconfiguration message Mode；

Wherein：There is the grouped data of micro-base station to converge in the micro-base station configuration information that the connection reconfiguration message includes Poly- agreement PDCP layers of configuration information, the grouping system carrying eps-bearer marks based on evolution and Data Radio Bearer DRB marks When at least one of knowledge information, dual link mode is the resource polymerization of non-bearing separation；Otherwise, dual link mode is carrying point From resource polymerization.

Scheme through the embodiment of the present invention makes terminal be configured according to the micro-base station that the connection reconfiguration message received includes Information determines this used dual link mode, is the optimization to current 3GPP standards.

Preferably, the connection reconfiguration message is sent by radio resource control RRC signaling.

Scheme through the embodiment of the present invention gives a kind of available mode for sending connection reconfiguration message.

E-RAB is established between macro base station and the micro-base station, is specifically included：

Macro base station establishes request to micro-base station initiation E-RAB, and it includes that the micro-base station is made to obtain that the E-RAB, which is established in request, Know that dual link mode is the instruction information of the resource polymerization of carrying separation or the resource polymerization of non-bearing separation；

Macro base station is receiving when establishing response message of the micro-base station return, completes the E- between the micro-base station RAB establishes process.

Scheme through the embodiment of the present invention, macro base station make micro-base station know practical institute when establishing E-RAB with micro-base station The dual link mode used.

Preferably, the instruction message is：The resource distribution of the macro base station configured in operation management maintainance OAM is believed Breath so that micro-base station determines that the dual link mode of terminal is the resource of carrying separation according to the resource allocation information of the macro base station The resource polymerization of polymerization or non-bearing separation；Or

The instruction message is：Uplink tunnel destination node so that micro-base station is determining that the uplink tunnel destination node is macro It when base station, determines that the dual link mode of terminal is the resource polymerization of carrying separation, is determining that the uplink tunnel destination node is clothes When business gateway S-GW, determine that the dual link mode of terminal is the resource polymerization of non-bearing separation；Or

The instruction message is：Indicate that the dual link mode of terminal is resource polymerization or the carrying separation of non-bearing separation Resource polymerization identification number so that micro-base station determines the dual link mode of terminal according to the identification number.

Scheme through the embodiment of the present invention describes three kinds of optional modes that micro-base station knows dual link mode.

Preferably, macro base station to micro-base station initiate E-RAB establish request after, and receive it is described establish response message it Before, the method further includes：

When the micro-base station determines that dual link mode is the resource polymerization of non-bearing separation according to the instruction message, at this Ground configures PDCP layers, eps-bearer is identified and at least one of DRB marks information, is determining that dual link mode is carrying point From resource polymerization when, without be locally configured PDCP layers, eps-bearer mark and DRB mark.

Scheme through the embodiment of the present invention, micro-base station determine dual link mode be carrying separation resource polymerization when, Determine that data are forwarded by macro base station, it is therefore not necessary to be locally configured PDCP layers, eps-bearer mark and DRB mark, simplify Process is locally configured.

Preferably, before macro base station initiates E-RAB foundation requests to micro-base station or macro base station initiates E-RAB to micro-base station Meanwhile the method further includes：

Serving cell serving cell of the macro base station to micro-base station request addition for establishing the E-RAB, or Person, the serving cell for establishing the E-RAB that macro base station has been added to micro-base station request.

Scheme through the embodiment of the present invention, macro base station can ask micro-base station to be distributed before or while establishing E-RAB Serving cell, the serving cell can be that micro-base station is newly added, can also be what micro-base station had been added, with true Possess local resource for establishing E-RAB.

Preferably, when dual link mode is the resource polymerization of carrying separation, between the macro base station and the micro-base station The uplink tunnel destination node of the E-RAB of foundation is the macro base station, otherwise, the E- established between macro base station and the micro-base station The uplink tunnel destination node of RAB is gateway S-GW.

Scheme through the embodiment of the present invention realizes different dual links by configuring different uplink tunnel destination nodes Mode.

The method further includes：

Preferably, E-RAB is established between the macro base station and mobile management entity MME, wherein in dual link mode be to hold When carrying the resource polymerization of separation, the downlink tunnel destination node of the E-RAB established between macro base station and MME is the macro base station；It is no Then, the downlink tunnel destination node of the E-RAB established between macro base station and MME is micro-base station.

Scheme through the embodiment of the present invention realizes different dual links by configuring different downlink tunnel destination nodes Mode.

Preferably, macro base station and E-RAB is established between the micro-base station and MME respectively and send connection reconfiguration message To the terminal, specifically include：

Before macro base station determines the dual link mode of terminal, receives the E-RAB that the MME is initiated and establish request；

E-RAB is established between macro base station and the micro-base station；

E-RAB of the macro base station between completion and micro-base station is established after process, will include own configuration information and described The connection reconfiguration message of micro-base station configuration information is sent to the terminal；

Macro base station returns to carry to MME and establishes response message after the terminal determines dual link mode, completion and MME Between E-RAB establish process.

Scheme through the embodiment of the present invention, describing a kind of macro base station, to establish E-RAB with micro-base station and MME respectively specific Realization process is a kind of feasible program of dual link scheme.

Preferably, macro base station establishes E-RAB between the micro-base station and MME and sends connection reconfiguration message respectively To the terminal, specifically include：

Macro base station receives the E-RAB that the MME is initiated and establishes request before determining the dual link mode of terminal；

When it is the resource polymerization of carrying separation to determine dual link mode, the connection reconfiguration including own configuration information is disappeared Breath is sent to the terminal, indicates that the terminal carries out local connection reconfiguration and sets operation, and complete local in the terminal After connection reconfiguration sets operation, response message is established to MME returns；

E-RAB of the macro base station between completion and MME establishes process and then establishes E-RAB between the micro-base station；

E-RAB of the macro base station between completion and micro-base station is established after process, will include the micro-base station configuration information Connection reconfiguration message be sent to the terminal, indicate that the terminal determines dual link side according to the micro-base station configuration information Formula.

Scheme through the embodiment of the present invention describes another macro base station and establishes E-RAB tools with micro-base station and MME respectively Body realizes process, is another feasible program of dual link scheme.

The embodiment of the present invention also describes a kind of dual link switching method, the method includes：

When macro base station determines that the dual link mode of terminal needs switching, E-RAB is established between the micro-base station of terminal access；

The macro base station is sent to the terminal includes the connection reconfiguration message of the micro-base station configuration information, described in instruction Terminal determines the dual link mode after switching according to the connection reconfiguration message；

Wherein：The dual link mode is the resource polymerization of carrying separation or the resource polymerization of non-bearing separation, described There are PDCP layers configuration information, the eps-bearer marks of micro-base station in the micro-base station configuration information that connection reconfiguration message includes When at least one of DRB marks information, dual link mode after switching is the resource polymerization of non-bearing separation；Otherwise, it cuts Dual link mode after changing is the resource polymerization of carrying separation.

Scheme through the embodiment of the present invention makes terminal determine the front and back dual link mode of switching in dual link switching, It is the optimization to current 3GPP standards.

Preferably, the method further includes：

The macro base station initiates path switching request to MME, wherein in dual link mode by the resource polymerization of carrying separation When being switched to the resource polymerization of non-bearing separation, the downlink tunnel destination node for including in the path switching request is micro-base station, It indicates that downlink tunnel destination node is switched to the micro-base station by the MME from macro base station, otherwise, is wrapped in the path switching request The downlink tunnel destination node contained is macro base station, indicates that downlink tunnel destination node is switched to macro base station by the MME from micro-base station.

Scheme through the embodiment of the present invention, the downlink tunnel destination node for including in macro base station passage path switching request Difference, to trigger the switching that MME realizes dual link.

The real-time example of the present invention describes a kind of doubly-linked welding system, is established the system comprises macro base station, with the macro base station The micro-base station of E-RAB, wherein：

The macro base station, for determining that the dual link mode of terminal is resource polymerization or the non-bearing separation of carrying separation Resource polymerization, and, after establishing E-RAB between the micro-base station, to the terminal send comprising the micro-base station configure The connection reconfiguration message of information indicates that the terminal determines dual link mode according to the connection reconfiguration message；

The micro-base station, for establishing E-RAB with the macro base station；

Wherein：There are the PDCP layers of micro-base station to configure in the micro-base station configuration information that the connection reconfiguration message includes When at least one of information, eps-bearer marks and DRB marks information, dual link mode is that the resource of non-bearing separation is poly- It closes；Otherwise, dual link mode is the resource polymerization of carrying separation.

Preferably, the macro base station is specifically used for initiating E-RAB foundation requests to micro-base station, and the E-RAB establishes request In comprising make the micro-base station know this dual link mode be carrying separation resource polymerization or non-bearing separation resource The instruction information of polymerization, and receive the E-RAB for establishing response message, completing between the micro-base station that the micro-base station returns Establish process；

The micro-base station carries out local matches after receiving the E-RAB foundation requests that the macro base station is initiated It sets, and response message is established to macro base station return.

Preferably, the micro-base station, specifically for being in the instruction message：The macro base station configured in OAM When resource allocation information, determine that the dual link mode of terminal is the money of carrying separation according to the resource allocation information of the macro base station Source polymerize or the resource polymerization of non-bearing separation；Alternatively, being in the instruction message：When uplink tunnel destination node, however, it is determined that The uplink tunnel destination node is macro base station, it is determined that the dual link mode of terminal is the resource polymerization of carrying separation, however, it is determined that The uplink tunnel destination node is S-GW, it is determined that the dual link mode of terminal is the resource polymerization of non-bearing separation；Alternatively, The instruction message is：Indicate that the dual link mode of terminal is that the resource polymerization of non-bearing separation or the resource of carrying separation are gathered When the identification number of conjunction, the dual link mode of terminal is determined according to the identification number.

Preferably, the micro-base station, specifically for determining that dual link mode is non-bearing point according to the instruction message From resource polymerization when, be locally configured PDCP layers, eps-bearer mark and DRB mark, determining that dual link mode is to hold Carry separation resource polymerization when, without be locally configured PDCP layer, eps-bearer mark and DRB identify.

Preferably, the macro base station is additionally operable to before initiating E-RAB to micro-base station and establishing request, or sent out to micro-base station Play E-RAB simultaneously, the serving cell to micro-base station request addition for establishing the E-RAB, alternatively, to described micro- The serving cell for establishing the E-RAB that base station requests have been added.

Preferably, the system also includes：

MME, for establishing E-RAB between the macro base station, wherein gather in the resource that dual link mode is carrying separation When conjunction, the downlink tunnel destination node of the E-RAB established between macro base station and MME is the macro base station；Otherwise, macro base station and MME Between the downlink tunnel destination node of E-RAB established be micro-base station.

Preferably, the MME is specifically used for initiating E-RAB foundation requests to the macro base station, and described macro receiving When establishing response message of base station return, the E-RAB completed between macro base station establishes process；

The macro base station is specifically used for receiving the E-RAB foundation requests that the MME is initiated, and in the doubly-linked for determining terminal After connecing mode, E-RAB is established between the micro-base station, the E-RAB between completion and micro-base station is established after process, will be wrapped The connection reconfiguration message for including own configuration information and the micro-base station configuration information is sent to the terminal, indicates that the terminal is true Determine dual link mode, backward MME return establish response message.

Preferably, the MME is specifically used for initiating E-RAB foundation requests to the macro base station, and is receiving macro base station When establishing response message of return, the E-RAB completed between macro base station establish process；

The macro base station is specifically used for receiving the E-RAB foundation requests that the MME is initiated, and is determining dual link mode When to carry the resource polymerization detached, the connection reconfiguration message including own configuration information being sent to the terminal, indicates institute Terminal is stated to carry out that after local connection reconfiguration sets operation, response message is established to MME returns, and, between completion and MME E-RAB establishes process and then establishes E-RAB between the micro-base station, and the company that will include the micro-base station configuration information It connects reallocation message and is sent to the terminal, indicate that the terminal determines dual link mode according to the micro-base station configuration information.

The embodiment of the present invention also describes a kind of dual link switching system, and the system comprises macro base station and the macro bases The micro-base station of E-RAB is established at station, wherein：

Macro base station when for determining that the dual link mode of terminal needs switching, is established between the micro-base station of terminal access E-RAB, and the connection reconfiguration message for including the micro-base station configuration information is sent to the terminal, indicate the terminal according to institute It states connection reconfiguration message and determines the dual link mode after switching；Wherein：The dual link mode is the resource polymerization of carrying separation Or the resource polymerization of non-bearing separation, there is micro-base station in the micro-base station configuration information that the connection reconfiguration message includes When at least one of PDCP layers of configuration information, eps-bearer marks and DRB marks information, the dual link mode after switching is The resource polymerization of non-bearing separation；Otherwise, the dual link mode after switching is the resource polymerization of carrying separation；

The micro-base station, for establishing E-RAB with the macro base station.

Preferably, the system also includes MME, wherein：

The macro base station is specifically used for initiating path switching request to the MME, wherein in dual link mode by carrying When the resource polymerization of separation is switched to the resource polymerization of non-bearing separation, the downlink tunnel for including in the path switching request is whole Node is micro-base station, and otherwise, the downlink tunnel destination node for including in the path switching request is macro base station；

The MME, the downlink tunnel destination node for including in the path switching request received are micro-base station When, downlink tunnel destination node is switched into the micro-base station from macro base station, includes in the path switching request received Downlink tunnel destination node be macro base station when, downlink tunnel destination node is switched into macro base station from micro-base station.

The embodiment of the present invention describes a kind of macro base station, and the macro base station includes：

Dual link mode determining module, for determining that the dual link mode of terminal is the resource polymerization also right and wrong of carrying separation Carry the resource polymerization of separation；

Tunnel building module establishes E-RAB between the micro-base station accessed for terminal；

Indicating module, for sending the connection reconfiguration message for including the micro-base station configuration information, instruction to the terminal The terminal determines dual link mode according to the connection reconfiguration message；

Wherein：Have in the micro-base station configuration information that the connection reconfiguration message includes PDCP layers of configuration information, When at least one of eps-bearer is identified and DRB is identified information, dual link mode is the resource polymerization of non-bearing separation；It is no Then, dual link mode is the resource polymerization of carrying separation.

Preferably, the indicating module sends the connection reconfiguration message specifically for passing through RRC signaling.

Preferably, the tunnel building module is specifically used for initiating E-RAB foundation requests to micro-base station, and the E-RAB is built Include that the micro-base station is made to know that this dual link mode is resource polymerization or the non-bearing separation of carrying separation in vertical request Resource polymerization instruction information, and receiving that the micro-base station returns when establishing response message, completing and micro- base E-RAB between standing establishes process.

Preferably, the tunnel building module is specifically used for initiating before E-RAB establishes request, or to micro- to micro-base station E-RAB is initiated simultaneously in base station, the serving cell serving to micro-base station request addition for establishing the E-RAB Cell, alternatively, the serving cell for establishing the E-RAB added to micro-base station request.

Preferably, the tunnel building module, is additionally operable to establish E-RAB between MME, wherein is in dual link mode When carrying the resource polymerization of separation, the downlink tunnel destination node of the E-RAB established between MME is the macro base station；Otherwise, with The downlink tunnel destination node of the E-RAB established between MME is micro-base station.

Preferably, the tunnel building module is specifically used for receiving the E-RAB foundation requests that the MME is initiated, and true After the dual link mode for determining terminal, E-RAB is established between the micro-base station, the E-RAB between completion and micro-base station is established After process, the connection reconfiguration message including own configuration information and the micro-base station configuration information is sent to the terminal, Indicate that the terminal determines dual link mode, backward MME return establish response message.

Preferably, the tunnel building module is specifically used for receiving the E-RAB foundation requests that the MME is initiated, and true When determining the resource polymerization that dual link mode is carrying separation, the connection reconfiguration message including own configuration information is sent to described Terminal establishes response message after indicating that the local connection reconfiguration of the terminal progress sets operation to MME returns, and, it completes E-RAB between MME establishes process and then establishes E-RAB between the micro-base station, and will match including the micro-base station The connection reconfiguration message of confidence breath is sent to the terminal, indicates that the terminal determines doubly-linked according to the micro-base station configuration information Connect mode.

The embodiment of the present invention also describes a kind of terminal, and the terminal includes：

Receiving module, for receiving the connection reconfiguration information for including micro-base station configuration information；

Dual link mode determining module, for determining dual link mode according to the connection reconfiguration message, wherein：Described There are PDCP layers configuration information, the eps-bearer marks of micro-base station in the micro-base station configuration information that connection reconfiguration message includes With DRB mark at least one of information when, determine dual link mode be non-bearing separation resource polymerization；Otherwise, it determines double Connection type is the resource polymerization of carrying separation.

The embodiment of the present invention also describes a kind of macro base station, and the macro base station includes：

Switching judging module, for judging whether the dual link mode of terminal needs to switch；

Tunnel building module, when for needing switching in the dual link mode for determining terminal, the micro-base station with terminal access Between establish E-RAB, wherein dual link mode by carrying separation resource polymerization be switched to non-bearing separation resource polymerization When, the uplink tunnel destination node of the E-RAB established between macro base station and the micro-base station is S-GW, otherwise, uplink tunnel termination Point is macro base station；

Indicating module, for sending the connection reconfiguration message for including the micro-base station configuration information, instruction to the terminal The terminal determines the dual link mode after switching according to the connection reconfiguration message, wherein：The dual link mode is carrying The resource polymerization of resource polymerization or the non-bearing separation of separation matches confidence in the micro-base station that the connection reconfiguration message includes When having at least one of PDCP layers configuration information, eps-bearer marks and the DRB marks of micro-base station information in breath, after switching Dual link mode be non-bearing separation resource polymerization；Otherwise, the dual link mode after switching is that the resource of carrying separation is poly- It closes.

Preferably, the macro base station further includes：

Path switching request module, for initiating path switching request to MME, wherein in dual link mode by carrying point From resource polymerization be switched to the resource polymerization of non-bearing separation when, the downlink tunnel termination that includes in the path switching request Point is micro-base station, indicates that downlink tunnel destination node is switched to the micro-base station by the MME from macro base station, otherwise, the path The downlink tunnel destination node for including in switching request is macro base station, indicates that the MME cuts downlink tunnel destination node from micro-base station Shift to macro base station.

Dual link mode determining module, for determining dual link mode according to the connection reconfiguration message, wherein：It is described double Connection type is the resource polymerization of carrying separation or the resource polymerization of non-bearing separation, in the institute that the connection reconfiguration message includes State at least one in the PDCP layers configuration information for having micro-base station in micro-base station configuration information, eps-bearer marks and DRB marks When a information, determine that dual link mode is switched to the resource polymerization of non-bearing separation by the resource polymerization of carrying separation；Otherwise, really Determine the resource polymerization that the resource polymerization that dual link mode is detached by non-bearing is switched to carrying separation.

Description of the drawings

To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment Attached drawing is briefly introduced, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this For the those of ordinary skill in field, without having to pay creative labor, it can also be obtained according to these attached drawings His attached drawing.

Fig. 1 is the dual link schematic diagram of terminal and macro base station and micro-base station in background technology；

Fig. 2 is dual link method and step schematic diagram in the embodiment of the present invention one；

Fig. 3~Fig. 6 is dual link flow diagram in the embodiment of the present invention one；

Fig. 7 is dual link switching method step schematic diagram in the embodiment of the present invention two；

Fig. 8, Fig. 9 are the flow diagram that dual link is established in the embodiment of the present invention two；

Figure 10 is the structural schematic diagram of doubly-linked welding system in the embodiment of the present invention three；

Figure 11 is the structural schematic diagram of macro base station in the embodiment of the present invention five；

Figure 12 is the structural schematic diagram of terminal in the embodiment of the present invention five；

Figure 13 is the structural schematic diagram of macro base station in the embodiment of the present invention six.

Specific implementation mode

To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention make into It is described in detail to one step, it is clear that the described embodiments are only some of the embodiments of the present invention, rather than whole implementation Example.Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts All other embodiment, shall fall within the protection scope of the present invention.

The embodiment of the present invention proposes a kind of dual link and dual link handover scheme, does not have to improve in current 3GPP standards Terminal is set to know that dual link mode is the resource polymerization of carrying separation（Follow-up abbreviation bearer-splitting modes）Still The resource polymerization of non-bearing separation（Follow-up referred to as non-bearer-splitting modes）The case where, it is sent out from macro base station to terminal Relevant information is carried in the connection reconfiguration message sent, terminal is made to know used dual link mode.

The relevant information refers to the Packet Data Convergence Protocol in micro-base station configuration information（Packet Data Convergence Protocol, PDCP）Layer configuration information, the grouping system carrying based on evolution（Evolved Packet System-bearer, eps-bearer）Mark and Data Radio Bearer（Data Radio Bearer, DRB）Mark, if micro- When in base station configuration information comprising at least one of above-mentioned three kinds of information information, indicate that this dual link mode is non- Bearer-splitting modes；If not including any one of the above information in micro-base station configuration information, this doubly-linked is indicated It is bearer-splitting modes to connect mode.

It should be noted that the micro-base station involved by the embodiment of the present invention includes but not limited to the base stations Pico, Home eNodeB The micro-base station of equal small base stations, the doubly-linked termination process of participation terminal is the practical micro-base station accessed of terminal, subsequently referred to as SeNB； Macro base station involved by the embodiment of the present invention is the practical macro base station accessed of terminal, subsequently referred to as MeNB.

The scheme of the embodiment of the present invention is described in detail with reference to the accompanying drawings of the specification.

Embodiment one：

The embodiment of the present invention one describes a kind of dual link method, as shown in Fig. 2, the dual link method includes following step Suddenly：

Step 101：MeNB determines that the dual link mode of terminal be bearer-splitting modes is also non-bearer- Splitting modes.

In this step, the upper layer network element equipment that MeNB can be in by core net（Such as MME）Triggering, start dual link build Vertical process, can also actively initiate the process of establishing of dual link, or even can also be to be triggered by SeNB and initiate building for dual link Vertical process.

Step 102：E-RAB is established between MeNB and SeNB.

Step 103：Connection reconfiguration message comprising the SeNB configuration informations is sent to the terminal by MeNB.

Step 104：The terminal determines dual link mode according to the content in the connection reconfiguration message, specially： Terminal recognition go out in the micro-base station configuration information that the connection reconfiguration message includes to have micro-base station PDCP layers configuration information, When at least one of eps-bearer is identified and DRB is identified information, determine that dual link mode is non-bearer-splitting Mode；Otherwise, it determines dual link mode is bearer-splitting modes.

One method through the embodiment of the present invention so that the connection reconfiguration message that terminal is sent according to MeNB knows that this is double Connection type is that bearer-splitting modes are also non-bearer-splitting modes, in perfect current 3GPP standards For dual link scheme.

The scheme of above-mentioned steps 101 and step 104 is described in detail below.

In above-mentioned steps 101, MeNB first has to determine that used dual link mode is the side bearer-splitting Formula is also non-bearer-splitting modes.Specifically, MeNB can be according to the load balancing state between local and micro-base station And/or local resource configuration state selects dual link mode, such as：If locally load is smaller by MeNB（Such as less than set Threshold value）, then bearer-splitting modes may be selected；Otherwise, non-bearer-splitting modes are selected；For another example According to the resource configuration state of the locals MeNB, locally available bearer network is determined, if limited without forwarding by bearer network The ability of data, MeNB need to select non-bearer-splitting modes；Otherwise, the side bearer-splitting may be selected in MeNB Formula.

The macro base station is after step 101 determines dual link mode, so that it may establish E- in step 102 and the micro-base station RAB.Specifically, MeNB in dual link other than establishing E-RAB with micro-base station, it is also necessary to E-RAB is established between MME.

The sequencing that the embodiment of the present invention does not establish MeNB E-RAB with SeNB and MME respectively limits, and MeNB can E-RAB is established with elder generation and MME and then establishes E-RAB with SeNB；E-RAB and then and MME can also be first established with SeNB Establish E-RAB；The E-RAB with SeNB can also be established during establishing E-RAB with MME.

Equally, MeNB established between SeNB after E-RAB can be sent to terminal include SeNB configuration informations institute Connection reconfiguration message is stated, example 1, MeNB can be after establishing E-RAB with SeNB and before establishing completion E-RAB, to end with MME End transmission includes the connection reconfiguration message of the SeNB configuration informations and MeNB configuration informations；Example 2, MeNB can be with MME It establishes during E-RAB, includes the configuration information of MeNB to terminal transmission, at this point, terminal can not also determine dual link mode, Later, after E-RAB of the MeNB between completion and SeNB establishes process, then to terminal send include SeNB configuration informations company Reallocation message is connect, at this point, terminal can determine dual link mode.

MeNB establishes E-RAB with SeNB and MME and sends two kinds of examples of connection reconfiguration message to terminal respectively above It is described in detail below：

Example 1：

As shown in figure 3, being triggered by MME for MeNB, the flow diagram of dual link is established, in this example 1, MeNB exists It completes after establishing process with the E-RAB of SeNB, during with the E-RAB of MME foundation, sends to the terminal and match comprising SeNB The connection reconfiguration message of confidence breath, instruction terminal determines dual link mode when the connection reconfiguration for carrying out local sets operation, has Body includes the following steps：

Step 201：MME initiates E-RAB to MeNB and establishes request.

The E-RAB establishes the message content asked：AP marks of the MME and MeNB based on S1 agreements（MME/ The S1AP ID of MeNB）, terminal maximum polymerization bit rate, E-RAB to be established list, the list includes being intended to establish The mark of E-RAB（E-RAB ID）, E-RAB to be established service quality（Quality of Service, QoS）Parameter, uplink Tunnel destination node.Here uplink tunnel can be based on GPRS Tunnel Protocol（GTP）, therefore, the uplink tunnel destination node can To be uplink GTP tunnel destination node, the uplink GTP tunnel destination node is S-GW, usually, can set the uplink GTP Tunnel destination node is the S1 interfaces on S-GW, and specifically, the content of the uplink GTP tunnel destination node may include：Based on GTP Tunnel destination node identity（GTP-TEID）, transport Layer address（Such as IP address）, characterized using this as the uplink GTP S1 interfaces on the S-GW of tunnel destination node.

Step 202：After MeNB receives the E-RAB foundation requests of MME transmissions, E-RAB is established between the SeNB.

The process that E-RAB is established in this step 202, between MeNB and SeNB is：

The first step：MeNB determines dual link mode.

Second step：MeNB initiates addition serving cell to SeNB（serving cell）Request and E-RAB establish request.

The purpose that MeNB initiates addition serving cell to SeNB is：In the resource of newly added serving cell Establish the E-RAB.Certainly, if the serving cell added in SeNB can be used for establishing the E-RAB, MeNB can Directly the serving cell added are asked to establish the E-RAB to SeNB.

It includes uplink tunnel destination node that the E-RAB, which is established in request, if MeNB intends to use bearer- Splitting modes, the uplink tunnel destination node are MeNB（If the uplink tunnel destination node is a certain interface of MeNB, Then E-RAB establishes the GTP-TEID and IP address that the information carried in request is the MeNB interfaces）.If MeNB intends using non- Bearer-splitting modes, the uplink tunnel destination node are the S1 interfaces of S-GW.

It also includes instruction information that the E-RAB, which is established in request, for making the SeNB for receiving the instruction information that can obtain Know that this dual link mode be bearer-splitting modes is also non-bearer-splitting modes.The embodiment of the present invention One includes but not limited to so that SeNB is determined this dual link mode according to the instruction information received using following three kinds of modes.

Mode one：SeNB passes through operation management maintainance（Operation Administration and Maintenance, OAM）The mode of static configuration determines dual link mode.

Local resource allocation information can be interacted between MeNB and SeNB, and other side is made to understand local resource distribution Situation, to avoid MeNB and SeNB when establishing dual link in different ways, specific practice is：MeNB is sent to SeNB Instruction information be the resource allocation information of the MeNB configured in OAM so that SeNB is according to the resource distribution of the MeNB Information determines the dual link mode of terminal.For example, being matched for MeNB by operator if be configured in the resource allocation information of MeNB The bearer network information set, and operator is configured with the dual link mode that the bearer network can only use, then MeNB can only be selected and oneself The dual link mode of the bearer network adaptation of body, SeNB determine the dual link mode of MeNB selections according to the bearer network information of MeNB.

Mode two：SeNB is established in request according to E-RAB and is determined dual link mode comprising uplink tunnel destination node.The finger Show that message is the information of uplink tunnel destination node, if uplink tunnel destination node is MeNB, SeNB determines that dual link mode is Bearer-splitting modes；If uplink tunnel end point is S-GW, SeNB determines that dual link mode is non-bearer- Splitting modes.

Mode three：SeNB is identified according to display and is determined dual link mode.The instruction message is identification number, for indicating eventually The dual link mode at end is that bearer-splitting modes are also non-bearer-splitting modes.

The E-RAB is established in addition to including uplink tunnel destination node and instruction information in request, can also include following Information：The list of maximum the polymerization bit rate, E-RAB to be established of terminal（Including E-RABID, E-RAB qos parameter）, these The parameter setting that MME is sent in the E-RAB foundation requests of MeNB may be used in information.In addition to this, the E-RAB foundation is asked The information that can also include in asking has：

1）, cause value：MeNB asks addition serving cell to SeNB（Or use existing serving cell）'s Reason, such as：Load balancing, wireless reason, QoS of survice reason, promotion handling capacity etc..

2）, serving cell mark：Mark for being added or used to existing serving cell.

3）, RRC contexts：Wireless capability message, access layer configuration information including terminal（C-RNTI including terminal, The PCI of MeNB cells, access layer configuration suggestion（MAC layer configuration, the configuration of physics special layer, the radio resource of carrier wave polymerization are special Configuration, SRD/DRB configurations））, access layer contextual information, RRM information.

4）, security capability information, access layer security information, user subscription information, allow the MDT based on management.

5）, terminal historical information.

Third walks：After the E-RAB that SeNB receives MeNB transmissions establishes request, after locally carrying out corresponding configuration, to Response message is established in the MeNB returns, at this point, the E-RAB between MeNB and SeNB establishes process completion.

The process that is locally configured of SeNB includes：According to the access layer configuration suggestion of MeNB to local serving cell's Access layer is configured accordingly, it is of course also possible to without reference to the access layer configuration suggestion of MeNB, but use and be locally configured. In addition, SeNB can also determine the access layer configuration parameter of terminal（Including：Physical layer parameter, MAC layer parameter, DRB configure parameter （Rlc layer configuration, logic channel configuration, PDCP layers of configuration etc.））.It is configured for the DRB, if SeNB determines this dual link When mode is bearer-splitting modes, do not include in the DRB configurations then：PDCP layers of configuration IE（PDCP- Config, content include abandoning the time, PDCP SN sizes, header compression algorithm, whether needing status report etc.）, also may be used Not include：Eps-bearer marks, DRB marks；If SeNB determines that this dual link mode is non-bearer- When splitting modes, then the DRB configurations include：During PDCP layers of configuration, eps-bearer marks and DRB is identified At least one information.

What the SeNB was returned to the MeNB establishes establish situation of the response message for indicating this E-RAB, content Including：The E-RAB lists of foundation（Including E-RAB ID, E-RAB qos parameters, tunnel destination node）If establishing E-RAB mistakes It loses, further includes the E-RAB lists for establishing failure（Including E-RAB ID and failure cause）.

In flow shown in Fig. 3, MeNB initiates the request of addition serving cell to SeNB simultaneously and E-RAB foundation is asked It asks, which can be deformed into：MeNB first asks addition serving cell to SeNB, at this point, the content carried in request message Do not include E-RAB lists.SeNB returns to addition operating result to MeNB（Access layer configuration information including terminal）.Later, MeNB initiates E-RAB to SeNB again and establishes request, and to establish the E-RAB between MeNB and SeNB, for details, reference can be made to Fig. 4.Again into One step, MeNB to SeNB ask addition serving cell and request establish E-RAB process can it is full decoupled and, i.e.,： MeNB can ask SeNB to add serving cell at any time according to wireless conditions, loading condition, and the request without regard to E-RAB is built Vertical process.

Step 203：MeNB to the terminal send include MeNB configuration informations and SeNB configuration informations connection reconfiguration Message indicates that the terminal when the connection reconfiguration for carrying out local sets operation, determines this dual link mode.

In this step 203, MeNB is constructed by radio resource control according to own configuration information and SeNB configuration informations System（Radio Resource Control, RRC）The connection reconfiguration message that signaling is sent.The SeNB configuration informations can be What SeNB was returned to MeNB establishes the information carried in response message, and MeNB can be established to what SeNB was returned in response message Partial value is modified, and can also not understood the content established in response message completely, is directly placed in connection reconfiguration message.

May include the following contents in the connection reconfiguration message：

1）, measurement configuration information, it is identical as the measurement configuration information that current MeNB is issued in conventional scheme.

2）, MeNB configuration informations, including：Radio resource specialized configuration（Physical layer configurations, MAC layer configure, SPS is configured, The DRB configurations of serving cell additions/modification/release list, MeNB SRB configurations and MeNB particular bearers（That is the carrying Only on MeNB）Deng）.If using bearer-splitting modes, the DRB configurations include：PDCP layers of configuration, Eps-bearer marks, DRB marks, RLC are with Logic Channel Identifier and configuration etc..

3）, SeNB configuration informations, including：Cell index, cell ID, radio-resource-configuration（Physical layer configurations, MAC layer Configuration, SPS configurations, serving cell additions/modification/release list, SeNB SRB are configured and the DRB of SeNB particular bearers Configuration（I.e. the carrying is only on SeNB）Deng）.If using bearer-splitting modes, the DRB configurations include Rlc layer configuration, Logic Channel Identifier and configuration etc., if using non-bearer-splitting modes, the SeNB matches Further include at least one of PDCP layers of configuration information, eps-bearer marks and DRB marks information in confidence breath.

MeNB can eat dishes without rice or wine to send connection reconfiguration message to terminal by MeNB, can also be sent to SeNB, pass through SeNB skies Mouth is sent to terminal, in order to improve transmission reliability, can also eat dishes without rice or wine to eat dishes without rice or wine to be sent to terminal with SeNB by MeNB respectively, has The sending method of body can be determined according to actual channel condition.

After terminal receives the connection reconfiguration message, radio-resource-configuration is carried out to the parts MeNB and SeNB respectively, together When, whether include at least one of PDCP layers of configuration, eps-bearer marks and DRB marks letter according in SeNB configuration informations Breath, to judge dual link mode, if including, it is determined that this dual link mode is non-bearer-splitting modes；It is no Then, determine that dual link mode is bearer-splitting modes.

After the local connection reconfiguration of terminal completion sets operation, returns to re-match to MeNB and complete message, the re-matching completion Message can be eated dishes without rice or wine to send by MeNB, can also eat dishes without rice or wine to relay to MeNB after being sent to SeNB by SeNB, in order to improve hair Reliability is sent, can also eat dishes without rice or wine to eat dishes without rice or wine to send with SeNB by MeNB respectively, specific sending method can be according to actual channel Condition determines.

Step 204：MeNB establishes response message to MME returns, and the E-RAB completed between MME establishes process.

Described establish in response message carries downlink tunnel destination node, if this dual link is bearer- Splitting modes, then the downlink tunnel destination node is MeNB, and otherwise, the downlink tunnel destination node is SeNB.

The response message of establishing can also carry：S1AP ID of MME/MeNB, the E-RAB lists of foundation, if E- RAB establishes failure, can also carry the E-RAB lists for establishing failure.

Examples detailed above 1 is after MeNB first establishes E-RAB with SeNB, during establishing E-RAB with MME, instruction terminal It carries out local connection reconfiguration and sets operation, MeNB can also realize the scheme of the embodiment of the present invention one in other orders.

Example 2：

As shown in figure 5, being still that MeNB is triggered by MME, the flow diagram of dual link is established, in this example 2, MeNB The connection of SeNB configuration informations is sent comprising MeNB configuration informations but not included to terminal during with the E-RAB of MME foundation Reallocation message, MeNB establishes E-RAB after the completion of with the E-RAB of MME foundation, then with SeNB, and then includes to terminal transmission The connection reconfiguration message of SeNB configuration informations, in example 2, terminal has carried out connection reconfiguration twice and has set operation, specifically include with Lower step：

Step 301：MeNB receives the E-RAB that the MME is initiated and establishes request.

This step 301 is identical as the realization method of step 201, and details are not described herein again.

Step 302：MeNB sends to the terminal and wraps when it is bearer-splitting modes to determine dual link mode The connection reconfiguration message for including own configuration information indicates that the terminal carries out local connection reconfiguration and sets operation.

Connection reconfiguration message in this step 302 is compared with the connection reconfiguration message involved by step 203 in example 1, no Including SeNB configuration informations.

Terminal carries out local connection reconfiguration and sets operation to refer to carrying out radio-resource-configuration to the parts MeNB, and return to re-matching Complete message.

Step 303：MeNB returns to the response message of establishing for carrying downlink tunnel destination node to MME, completes between MME E-RAB establish process.

Since this dual link is bearer-splitting modes, the downlink tunnel destination node is MeNB.

The response message of establishing further includes：S1AP ID of MME/MeNB, the E-RAB lists of foundation, if E-RAB is built Vertical failure, can also carry the E-RAB lists for establishing failure.

Step 304：Radio access bearer E-RAB is established between MeNB and SeNB.

The realization process of this step 304 is identical as the realization process of the step 202 in example 1, can also have Fig. 5 and Fig. 6 Two kinds of situations.

Step 305：Connection reconfiguration message including SeNB configuration informations is sent to the terminal by MeNB, indicates the end End carries out local connection reconfiguration and sets operation again, while terminal knows this dual link mode.

Involved connection reconfiguration message and the connection reconfiguration message involved by step 203 in example 1 in this step 305 It compares, does not include MeNB configuration informations.

Terminal carries out local connection reconfiguration and sets operation to refer to carrying out radio-resource-configuration to the parts SeNB, and return to re-matching Message is completed, is terminated at this point, dual link establishes process.

Above example 1 and example 2 are all to be triggered beginning dual link by MME with MeNB to establish process, certainly, MeNB It can also be in the case where not triggered by MME, according to load balancing condition, wireless channel condition or currently on MeNB When part carrying is transferred on SeNB, actively starts dual link and establish process, the scheme of the embodiment of the present invention limits not to this It is fixed.

Embodiment two：

The embodiment of the present invention is second is that on the basis of one scheme of embodiment, it is proposed that MeNB carries out the switching of dual link mode Method, as shown in fig. 7, comprises following steps：

Step 401：When MeNB determines that the dual link mode of terminal needs to switch over, the SeNB of MeNB and terminal access it Between establish E-RAB.

When dual link mode is switched to non-bearer-splitting modes by bearer-splitting modes, MeNB The uplink tunnel destination node of the E-RAB established between SeNB is S-GW, in dual link mode by non-bearer-splitting When mode is switched to bearer-splitting modes, the uplink tunnel destination node of the E-RAB established between MeNB and SeNB is MeNB。

This step in example 1 and example 2 to establish process identical, can also have Fig. 8 and two kinds of situations shown in Fig. 9.

Step 402：MeNB sends the connection reconfiguration message for containing own configuration information and the SeNB configuration informations To the terminal, indicate that the terminal determines the dual link mode after switching according to the connection reconfiguration message.

The dual link mode is bearer-splitting modes or bearer-splitting modes, in the connection Have in the micro-base station configuration information that reallocation message includes micro-base station PDCP layers configuration information, eps-bearer mark and When at least one of DRB marks information, the dual link mode after switching is non-bearer-splitting modes；Otherwise, it cuts Dual link mode after changing is bearer-splitting modes.

When being that connection reconfiguration of the terminal in progress local sets operation in this step, the dual link mode after switching is determined 's.

Step 403：MeNB initiates path switching request to MME, carries out the switching of dual link mode.

It is described when dual link mode is switched to non-bearer-splitting modes by bearer-splitting modes The downlink tunnel destination node for including in the switching request of path is SeNB, indicates that the MME cuts downlink tunnel destination node from MeNB The SeNB is shifted to, otherwise, the downlink tunnel destination node for including in the path switching request is MeNB, indicates that the MME will Downlink tunnel destination node switches to MeNB from SeNB.

After the MME completes the switching of E-RAB, switch to MeNB return paths and confirm, the path switching is wrapped in confirming Destination node containing uplink tunnel be S-GW, at this point, if dual link mode be switched to by bearer-splitting modes it is non- Bearer-splitting modes, the then data that S-GW is sent are sent directly to SeNB by E-RAB, without turning through MeNB Hair；Otherwise, the data that S-GW is sent are after the forwarding of MeNB, then issue SeNB.

E-RAB is described in above example one and embodiment two establishes process（Preferably, there can be serving The adding procedure of cell）, it is similar for the modification of E-RAB, release process, can be that MME is initiated or MeNB actively starts , it might even be possible to it is that SeNB is initiated, as long as initiator notifies corresponding node modification GTP tunnel destination node or deletes GTP tunnels Road.For being sent to the RRC connection reconfiguration message of terminal, can be realized by changing or deleting the DRB information of SeNB, Message body structure is identical as the structure in example 1.

Embodiment three：

The embodiment of the present invention three describes a kind of doubly-linked welding system belonged to embodiment one under same inventive concept, such as schemes Shown in 10, the micro-base station of E-RAB is established the system comprises macro base station, with the macro base station, wherein：

The macro base station is used to determine that the dual link mode of terminal to be resource polymerization or the non-bearing separation of carrying separation Resource polymerization, and, after establishing E-RAB between the micro-base station, to the terminal send comprising the micro-base station configure The connection reconfiguration message of information indicates that the terminal determines dual link mode according to the connection reconfiguration message；

The micro-base station is used to establish E-RAB with the macro base station；

The optimization process that E-RAB is established between macro base station and micro-base station is as follows：

The macro base station is specifically used for establishing request to micro-base station initiation E-RAB, and it includes to make that the E-RAB, which is established in request, The micro-base station knows that this dual link mode is the finger of the resource polymerization of carrying separation or the resource polymerization of non-bearing separation Show information, and receive that the micro-base station returns establishes response message, the E-RAB completed between the micro-base station was established Journey；

The micro-base station is specifically used for after receiving the E-RAB foundation requests that the macro base station is initiated, and is locally configured, And establish response message to macro base station return.

Preferably, the micro-base station specifically for being in the instruction message：The money of the macro base station configured in OAM When the configuration information of source, determine that the dual link mode of terminal is the resource of carrying separation according to the resource allocation information of the macro base station The resource polymerization of polymerization or non-bearing separation；Alternatively, being in the instruction message：When uplink tunnel destination node, however, it is determined that institute It is macro base station to state uplink tunnel destination node, it is determined that the dual link mode of terminal is the resource polymerization of carrying separation, however, it is determined that institute It is S-GW to state uplink tunnel destination node, it is determined that the dual link mode of terminal is the resource polymerization of non-bearing separation；Alternatively, institute Stating instruction message is：Indicate that the dual link mode of terminal is the resource polymerization of non-bearing separation or the resource polymerization of carrying separation Identification number when, the dual link mode of terminal is determined according to the identification number.

Preferably, the micro-base station is specifically used for determining that dual link mode is non-bearing separation according to the instruction message Resource polymerization when, be locally configured PDCP layers, eps-bearer mark and DRB mark, determining dual link mode be carrying When the resource polymerization of separation, without be locally configured PDCP layers, eps-bearer mark and DRB mark.

Preferably, the macro base station is additionally operable to before initiating E-RAB to micro-base station and establishing request, or is initiated to micro-base station E-RAB adds the serving cell for establishing the E-RAB simultaneously, to micro-base station request, alternatively, to micro- base The serving cell for establishing the E-RAB that request of standing has been added.

Preferably, the system also includes MME, for establishing E-RAB between the macro base station, wherein in dual link When mode is the resource polymerization of carrying separation, the downlink tunnel destination node of the E-RAB established between macro base station and MME is described macro Base station；Otherwise, the downlink tunnel destination node of the E-RAB established between macro base station and MME is micro-base station.

The mode that macro base station establishes E-RAB with the micro-base station and MME respectively includes but not limited to following two modes：

Mode one：

The MME is specifically used for initiating E-RAB foundation requests to the macro base station, and is returned receiving the macro base station When establishing response message, complete and macro base station between E-RAB establish process；

The macro base station is specifically used for receiving the E-RAB foundation requests that the MME is initiated, and in the dual link for determining terminal After mode, E-RAB is established between the micro-base station, the E-RAB between completion and micro-base station is established after process, will include The connection reconfiguration message of own configuration information and the micro-base station configuration information is sent to the terminal, indicates that the terminal determines Dual link mode, backward MME13 return establish response message.

Mode two：

The MME is specifically used for initiating E-RAB foundation requests to the macro base station, and is receiving building for macro base station return When vertical response message, the E-RAB completed between macro base station establishes process；

The macro base station is specifically used for receiving the E-RAB foundation requests that the MME13 is initiated, and is determining dual link mode When to carry the resource polymerization detached, the connection reconfiguration message including own configuration information being sent to the terminal, indicates institute Terminal is stated to carry out that after local connection reconfiguration sets operation, response message is established to MME returns, and, between completion and MME E-RAB establishes process and then establishes E-RAB between the micro-base station, and the company that will include the micro-base station configuration information It connects reallocation message and is sent to the terminal, indicate that the terminal determines dual link mode according to the micro-base station configuration information.

Example IV：

The embodiment of the present invention four describes a kind of dual link switching system belonged to embodiment two under same inventive concept, The micro-base station of E-RAB is established the system comprises macro base station, with the macro base station, wherein：

When macro base station is for determining that the dual link mode of terminal needs switching, E- is established between the micro-base station of terminal access RAB, and the connection reconfiguration message for including the micro-base station configuration information is sent to the terminal, indicate the terminal according to Connection reconfiguration message determines the dual link mode after switching；Wherein：The dual link mode be carrying separation resource polymerization or The resource polymerization of non-bearing separation, has micro-base station in the micro-base station configuration information that the connection reconfiguration message includes When at least one of PDCP layers of configuration information, eps-bearer marks and DRB marks information, the dual link mode after switching is The resource polymerization of non-bearing separation；Otherwise, the dual link mode after switching is the resource polymerization of carrying separation；

The micro-base station is used to establish E-RAB with the macro base station.

The system also includes MME, wherein：

Embodiment five：

The embodiment of the present invention five also describes a kind of belonging to macro under same inventive concept with embodiment one and embodiment three Base station, as shown in figure 11, the macro base station include dual link mode determining module 11, tunnel building module 12 and indicating module 13, wherein：

Dual link mode determining module 11 be used for determine the dual link mode of terminal be carrying separation resource polymerization or The resource polymerization of non-bearing separation；

E-RAB is established between the micro-base station that tunnel building module 12 is used to access with terminal；

Indicating module 13 is used to send the connection reconfiguration message for including the micro-base station configuration information, instruction to the terminal The terminal determines dual link mode according to the connection reconfiguration message；

Preferably, the indicating module 13 is specifically used for sending the connection reconfiguration message by RRC signaling.

The optimal way that E-RAB is established between the tunnel building module 12 and micro-base station is as follows：

The tunnel building module 12 is specifically used for initiating E-RAB foundation requests to micro-base station, and the E-RAB establishes request In comprising make the micro-base station know this dual link mode be carrying separation resource polymerization or non-bearing separation resource The instruction information of polymerization, and when establishing response message of the micro-base station return is being received, it completes between the micro-base station E-RAB establish process.

Preferably, the tunnel building module 12 is specifically used for initiating before E-RAB establishes request, or to micro- to micro-base station E-RAB is initiated simultaneously in base station, the serving cell serving to micro-base station request addition for establishing the E-RAB Cell, alternatively, the serving cell for establishing the E-RAB added to micro-base station request.

Preferably, the tunnel building module 12 also establishes E-RAB with MME, specially：The tunnel building module 12 is also For establishing E-RAB between MME, wherein when dual link mode is the resource polymerization of carrying separation, established between MME E-RAB downlink tunnel destination node be the macro base station；Otherwise, the downlink tunnel destination node of the E-RAB established between MME For micro-base station.

It includes but not limited to following two modes that the tunnel building module 12 establishes E-RAB with micro-base station and MME respectively：

Mode one：

The tunnel building module 12 is specifically used for receiving the E-RAB foundation requests that the MME is initiated, and is determining terminal Dual link mode after, establish E-RAB between the micro-base station, the E-RAB between completion and micro-base station establish process it Afterwards, the connection reconfiguration message including own configuration information and the micro-base station configuration information is sent to the terminal, indicates institute State terminal and determine dual link mode, backward MME return establish response message.

Mode two：

The tunnel building module 12 is specifically used for receiving the E-RAB foundation requests that the MME is initiated, and is determining doubly-linked When connecing the resource polymerization that mode is carrying separation, the connection reconfiguration message including own configuration information is sent to the terminal, After indicating that the local connection reconfiguration of the terminal progress sets operation, response message is established to MME returns, and, in completion and MME Between E-RAB establish process and then establish E-RAB between the micro-base station, and will include the micro-base station match confidence The connection reconfiguration message of breath is sent to the terminal, indicates that the terminal determines dual link side according to the micro-base station configuration information Formula.

In the present embodiment five, the terminal for being indicated to determine dual link mode by the macro base station is also described, such as Figure 12 institutes To show, the terminal includes receiving module 21 and dual link mode determining module 22, wherein：

Receiving module 21 is for receiving the connection reconfiguration information for including micro-base station configuration information；

Dual link mode determining module 22 is used to according to the connection reconfiguration message determine dual link mode, wherein：Institute State the PDCP layers configuration information for having micro-base station in the micro-base station configuration information that connection reconfiguration message includes, eps-bearer marks When knowing at least one of DRB marks information, determine that dual link mode is the resource polymerization of non-bearing separation；Otherwise, it determines Dual link mode is the resource polymerization of carrying separation.

Embodiment six：

The embodiment of the present invention six describes a kind of macro base belonged to embodiment two and example IV under same inventive concept It stands, as shown in figure 13, the macro base station includes switching judging module 31, tunnel building module 32 and indicating module 33, wherein：

Switching judging module 31 is for judging whether the dual link mode of terminal needs to switch；

Tunnel building module 32 is used for when the dual link mode for determining terminal needs switching, the micro-base station with terminal access Between establish E-RAB, wherein dual link mode by carrying separation resource polymerization be switched to non-bearing separation resource polymerization When, the uplink tunnel destination node of the E-RAB established between macro base station and the micro-base station is S-GW, otherwise, uplink tunnel termination Point is macro base station；

Indicating module 33 is used to send the connection reconfiguration message for including the micro-base station configuration information, instruction to the terminal The terminal determines the dual link mode after switching according to the connection reconfiguration message, wherein：The dual link mode is carrying The resource polymerization of resource polymerization or the non-bearing separation of separation matches confidence in the micro-base station that the connection reconfiguration message includes When having at least one of PDCP layers configuration information, eps-bearer marks and the DRB marks of micro-base station information in breath, after switching Dual link mode be non-bearing separation resource polymerization；Otherwise, the dual link mode after switching is that the resource of carrying separation is poly- It closes.

Preferably, the macro base station further includes：Path switching request module 34, for initiating path switching request to MME, Wherein, when dual link mode is switched to the resource polymerization of non-bearing separation by the resource polymerization of carrying separation, the path is cut It is micro-base station to change the downlink tunnel destination node for including in request, indicates that the MME switches downlink tunnel destination node from macro base station To the micro-base station, otherwise, the downlink tunnel destination node for including in the path switching request is macro base station, indicates the MME Downlink tunnel destination node is switched into macro base station from micro-base station.

In the present embodiment six, the terminal for being indicated to determine dual link switching mode by the macro base station is also described, it is described Terminal includes receiving module and dual link mode determining module, wherein：

Receiving module is for receiving the connection reconfiguration information for including micro-base station configuration information；

Dual link mode determining module is used to according to the connection reconfiguration message determine dual link mode, wherein：It is described double Connection type is the resource polymerization of carrying separation or the resource polymerization of non-bearing separation, in the institute that the connection reconfiguration message includes State at least one in the PDCP layers configuration information for having micro-base station in micro-base station configuration information, eps-bearer marks and DRB marks When a information, determine that dual link mode is switched to the resource polymerization of non-bearing separation by the resource polymerization of carrying separation；Otherwise, really Determine the resource polymerization that the resource polymerization that dual link mode is detached by non-bearing is switched to carrying separation.

Method, system and equipment through the embodiment of the present invention, after establishing E-RAB between micro-base station by macro base station, Sent to terminal and include the connection reconfiguration message of micro-base station configuration information, terminal according in micro-base station configuration information whether in have it is micro- At least one of the PDCP layers configuration information of base station, eps-bearer marks and DRB marks information determines dual link mode Or dual link switching mode, the problem of terminal can not know dual link mode in perfect 3GPP；Meanwhile micro-base station is according to macro base Stand send instruction message（Resource allocation information, uplink tunnel destination node or the identification number of the macro base station configured in OAM） To determine this dual link mode, and effective supplement to current dual link scheme.

It should be understood by those skilled in the art that, embodiments herein can be provided as method, system or computer program Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the application Apply the form of example.Moreover, the application can be used in one or more wherein include computer usable program code computer Usable storage medium（Including but not limited to magnetic disk storage, CD-ROM, optical memory etc.）The computer program of upper implementation produces The form of product.

The application is with reference to method, the equipment according to the embodiment of the present application（System）And the flow of computer program product Figure and/or block diagram describe.It should be understood that can be realized by computer program instructions every first-class in flowchart and/or the block diagram The combination of flow and/or box in journey and/or box and flowchart and/or the block diagram.These computer programs can be provided Instruct the processor of all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce A raw machine so that the instruction executed by computer or the processor of other programmable data processing devices is generated for real The device for the function of being specified in present one flow of flow chart or one box of multiple flows and/or block diagram or multiple boxes.

These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works so that instruction generation stored in the computer readable memory includes referring to Enable the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one box of block diagram or The function of being specified in multiple boxes.

These computer program instructions also can be loaded onto a computer or other programmable data processing device so that count Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, in computer or The instruction executed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one The step of function of being specified in a box or multiple boxes.

In a typical configuration, the computer equipment includes one or more processors (CPU), input/output Interface, network interface and memory.Memory may include the volatile memory in computer-readable medium, random access memory The forms such as device (RAM) and/or Nonvolatile memory, such as read-only memory (ROM) or flash memory (flash RAM).Memory is to calculate The example of machine readable medium.Computer-readable medium includes that permanent and non-permanent, removable and non-removable media can be with Information storage is realized by any method or technique.Information can be computer-readable instruction, data structure, the module of program or Other data.The example of the storage medium of computer includes, but are not limited to phase transition internal memory (PRAM), static RAM (SRAM), dynamic random access memory (DRAM), other kinds of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), fast flash memory bank or other memory techniques, CD-ROM are read-only Memory (CD-ROM), digital versatile disc (DVD) or other optical storages, magnetic tape cassette, tape magnetic disk storage or Other magnetic storage apparatus or any other non-transmission medium can be used for storage and can be accessed by a computing device information.According to Herein defines, and computer-readable medium does not include non-persistent computer readable media (transitory media), such as The data-signal and carrier wave of modulation.

Although the preferred embodiment of the application has been described, created once a person skilled in the art knows basic Property concept, then additional changes and modifications can be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as It selects embodiment and falls into all change and modification of the application range.

Obviously, those skilled in the art can carry out the application essence of the various modification and variations without departing from the application God and range.In this way, if these modifications and variations of the application belong to the range of the application claim and its equivalent technologies Within, then the application is also intended to include these modifications and variations.

Claims

1. a kind of dual link method, which is characterized in that the method includes：

Macro base station determines that the dual link mode of terminal is the resource polymerization of carrying separation or the resource polymerization of non-bearing separation；

After establishing the radio access bearer E-RAB of evolution between macro base station and the micro-base station of terminal access, sent to the terminal The connection reconfiguration message for including the micro-base station configuration information indicates that the terminal determines doubly-linked according to the connection reconfiguration message Connect mode；

Wherein：There is the packet data convergence of micro-base station to assist in the micro-base station configuration information that the connection reconfiguration message includes It discusses in PDCP layers of configuration information, grouping system carrying eps-bearer marks and Data Radio Bearer DRB marks based on evolution At least one information when, dual link mode be non-bearing separation resource polymerization；Otherwise, dual link mode is carrying separation Resource polymerization.

2. the method as described in claim 1, which is characterized in that the connection reconfiguration message is to pass through radio resource control RRC What signaling was sent.

3. the method as described in claim 1, which is characterized in that E-RAB is established between macro base station and the micro-base station, it is specific to wrap It includes：

Macro base station initiates E-RAB to micro-base station and establishes request, and the E-RAB establishes double comprising making the micro-base station know in request Connection type is the instruction information of the resource polymerization of carrying separation or the resource polymerization of non-bearing separation；

Macro base station is receiving when establishing response message of the micro-base station return, completes the E-RAB between the micro-base station Establish process.

4. method as claimed in claim 3, which is characterized in that the instruction message is：It is configured in operation management maintainance OAM The macro base station resource allocation information so that micro-base station determines the double of terminal according to the resource allocation information of the macro base station Connection type is the resource polymerization of carrying separation or the resource polymerization of non-bearing separation；Or

The instruction message is：Uplink tunnel destination node so that micro-base station is determining that the uplink tunnel destination node is macro base station When, it determines that the dual link mode of terminal is the resource polymerization of carrying separation, is determining that the uplink tunnel destination node is service network When closing S-GW, determine that the dual link mode of terminal is the resource polymerization of non-bearing separation；Or

The instruction message is：Indicate that the dual link mode of terminal is the resource polymerization of non-bearing separation or the money of carrying separation The identification number of source polymerization so that micro-base station determines the dual link mode of terminal according to the identification number.

5. method as claimed in claim 3, which is characterized in that after macro base station initiates E-RAB foundation requests to micro-base station, and Receive it is described establish before response message, the method further includes：

When the micro-base station determines that dual link mode is the resource polymerization of non-bearing separation according to the instruction message, match locally Set PDCP layers, eps-bearer mark and DRB mark at least one of information, determining dual link mode be carrying separation When resource polymerization, without be locally configured PDCP layers, eps-bearer mark and DRB mark.

6. method as claimed in claim 3, which is characterized in that before macro base station initiates E-RAB foundation requests to micro-base station, or Macro base station initiates E-RAB simultaneously to micro-base station, and the method further includes：

Serving cell servingcell of the macro base station to micro-base station request addition for establishing the E-RAB, alternatively, macro The servingcell for establishing the E-RAB that base station has been added to micro-base station request.

7. the method as described in claim 1, which is characterized in that when dual link mode is the resource polymerization of carrying separation, institute State the E-RAB established between macro base station and the micro-base station uplink tunnel destination node be the macro base station, otherwise, macro base station with The uplink tunnel destination node of the E-RAB established between the micro-base station is gateway S-GW.

8. the method as described in claim 1, which is characterized in that the method further includes：

Establish E-RAB between the macro base station and mobile management entity MME, wherein dual link mode be carrying separation money When source polymerize, the downlink tunnel destination node of the E-RAB established between macro base station and MME is the macro base station；Otherwise, macro base station with The downlink tunnel destination node of the E-RAB established between MME is micro-base station.

9. method as claimed in claim 8, which is characterized in that macro base station and between the micro-base station and MME establish E- respectively RAB and connection reconfiguration message is sent to the terminal, specifically included：

E-RAB is established between macro base station and the micro-base station；

E-RAB of the macro base station between completion and micro-base station is established after process, will include own configuration information and micro- base The connection reconfiguration message of configuration information of standing is sent to the terminal；

Macro base station returns to carry to MME and establishes response message, complete between MME after the terminal determines dual link mode E-RAB establish process.

10. method as claimed in claim 8, which is characterized in that macro base station establishes E- between the micro-base station and MME respectively RAB and connection reconfiguration message is sent to the terminal, specifically included：

When it is the resource polymerization of carrying separation to determine dual link mode, the connection reconfiguration message including own configuration information is sent out The terminal is given, indicates that the terminal carries out local connection reconfiguration and sets operation, and complete local connection in the terminal After reconfiguration operation, response message is established to MME returns；

E-RAB of the macro base station between completion and micro-base station is established after process, will include the company of the micro-base station configuration information It connects reallocation message and is sent to the terminal, indicate that the terminal determines dual link mode according to the micro-base station configuration information.

11. a kind of dual link switching method, which is characterized in that the method includes：

The macro base station sends the connection reconfiguration message for including the micro-base station configuration information to the terminal, indicates the terminal The dual link mode after switching is determined according to the connection reconfiguration message；

Wherein：The dual link mode is the resource polymerization of carrying separation or the resource polymerization of non-bearing separation, in the connection Have in the micro-base station configuration information that reallocation message includes micro-base station PDCP layers configuration information, eps-bearer mark and When at least one of DRB marks information, the dual link mode after switching is the resource polymerization of non-bearing separation；Otherwise, switch Dual link mode afterwards is the resource polymerization of carrying separation.

12. method as claimed in claim 11, which is characterized in that the method further includes：

The macro base station initiates path switching request to MME, wherein is switched by the resource polymerization of carrying separation in dual link mode For non-bearing separation resource polymerization when, the downlink tunnel destination node for including in the path switching request is micro-base station, instruction Downlink tunnel destination node is switched to the micro-base station by the MME from macro base station, otherwise, includes in the path switching request Downlink tunnel destination node is macro base station, indicates that downlink tunnel destination node is switched to macro base station by the MME from micro-base station.

13. a kind of doubly-linked welding system, which is characterized in that establish the micro- of E-RAB the system comprises macro base station, with the macro base station Base station, wherein：

The macro base station, for determining that the dual link mode of terminal is the resource polymerization of carrying separation or the money of non-bearing separation Source polymerize, and, after establishing E-RAB between the micro-base station, it includes the micro-base station configuration information to be sent to the terminal Connection reconfiguration message, indicate that the terminal determines dual link mode according to the connection reconfiguration message；

The micro-base station, for establishing E-RAB with the macro base station；

Wherein：There are the PDCP layers of micro-base station to match confidence in the micro-base station configuration information that the connection reconfiguration message includes When at least one of breath, eps-bearer marks and DRB marks information, dual link mode is that the resource of non-bearing separation is poly- It closes；Otherwise, dual link mode is the resource polymerization of carrying separation.

14. system as claimed in claim 13, which is characterized in that the connection reconfiguration message is to pass through wireless heterogeneous networks What RRC signaling was sent.

15. system as claimed in claim 13, which is characterized in that

The macro base station is specifically used for establishing request to micro-base station initiation E-RAB, and it includes to make institute that the E-RAB, which is established in request, It states micro-base station and knows that this dual link mode is the instruction of the resource polymerization of carrying separation or the resource polymerization of non-bearing separation Information, and receive that the micro-base station returns establishes response message, the E-RAB completed between the micro-base station establishes process；

The micro-base station is locally configured after receiving the E-RAB foundation requests that the macro base station is initiated, and Response message is established to macro base station return.

16. system as claimed in claim 15, which is characterized in that

The micro-base station, specifically for being in the instruction message：The resource allocation information of the macro base station configured in OAM When, determine that the dual link mode of terminal is the resource polymerization also right and wrong of carrying separation according to the resource allocation information of the macro base station Carry the resource polymerization of separation；Alternatively, being in the instruction message：When uplink tunnel destination node, however, it is determined that the uplink tunnel Destination node is macro base station, it is determined that the dual link mode of terminal is the resource polymerization of carrying separation, however, it is determined that the uplink tunnel Destination node is S-GW, it is determined that the dual link mode of terminal is the resource polymerization of non-bearing separation；Alternatively, in the instruction message For：Indicate that the dual link mode of terminal is the identification number of the resource polymerization of non-bearing separation or the resource polymerization of carrying separation When, the dual link mode of terminal is determined according to the identification number.

17. system as claimed in claim 15, which is characterized in that

The micro-base station, specifically for determining that dual link mode is the resource polymerization of non-bearing separation according to the instruction message When, be locally configured PDCP layers, eps-bearer mark and DRB mark, determining dual link mode be carrying separation resource When polymerization, without be locally configured PDCP layers, eps-bearer mark and DRB mark.

18. system as claimed in claim 15, which is characterized in that

The macro base station is additionally operable to before initiating E-RAB to micro-base station and establishing request, or initiate E-RAB simultaneously to micro-base station, Serving cell to micro-base station request addition for establishing the E-RAB, alternatively, having added to micro-base station request The serving cell for establishing the E-RAB added.

19. system as claimed in claim 13, which is characterized in that the system also includes：

MME, for establishing E-RAB between the macro base station, wherein dual link mode be carrying separation resource polymerization When, the downlink tunnel destination node of the E-RAB established between macro base station and MME is the macro base station；Otherwise, macro base station and MME it Between the downlink tunnel destination node of E-RAB established be micro-base station.

20. system as claimed in claim 19, which is characterized in that

The MME is specifically used for initiating E-RAB foundation requests to the macro base station, and is receiving what the macro base station returned When establishing response message, the E-RAB completed between macro base station establishes process；

The macro base station is specifically used for receiving the E-RAB foundation requests that the MME is initiated, and in the dual link side for determining terminal After formula, E-RAB is established between the micro-base station, the E-RAB between completion and micro-base station is established after process, will include certainly The connection reconfiguration message of body configuration information and the micro-base station configuration information is sent to the terminal, and it is double to indicate that the terminal determines Connection type, backward MME return establish response message.

21. system as claimed in claim 19, which is characterized in that

The MME is specifically used for initiating E-RAB foundation requests to the macro base station, and in the foundation for receiving macro base station return When response message, the E-RAB completed between macro base station establishes process；

The macro base station is specifically used for receiving the E-RAB foundation requests that the MME is initiated, and is determining that dual link mode is to hold When carrying the resource polymerization of separation, the connection reconfiguration message including own configuration information is sent to the terminal, indicates the end After progress local connection reconfiguration in end sets operation, response message is established to MME returns, and, the E- between completion and MME RAB establishes process and then establishes E-RAB between the micro-base station, and the connection that will include the micro-base station configuration information Reallocation message is sent to the terminal, indicates that the terminal determines dual link mode according to the micro-base station configuration information.

22. a kind of dual link switching system, which is characterized in that establish E-RAB the system comprises macro base station, with the macro base station Micro-base station, wherein：

When for determining that the dual link mode of terminal needs switching, E- is established between the micro-base station of terminal access for macro base station RAB, and the connection reconfiguration message for including the micro-base station configuration information is sent to the terminal, indicate the terminal according to Connection reconfiguration message determines the dual link mode after switching；Wherein：The dual link mode be carrying separation resource polymerization or The resource polymerization of non-bearing separation, has micro-base station in the micro-base station configuration information that the connection reconfiguration message includes When at least one of PDCP layers of configuration information, eps-bearer marks and DRB marks information, the dual link mode after switching is The resource polymerization of non-bearing separation；Otherwise, the dual link mode after switching is the resource polymerization of carrying separation；

The micro-base station, for establishing E-RAB with the macro base station.

23. the system as claimed in claim 22, which is characterized in that the system also includes MME, wherein：

The macro base station is specifically used for initiating path switching request to the MME, wherein is detached by carrying in dual link mode Resource polymerization when being switched to the resource polymerization of non-bearing separation, the downlink tunnel destination node for including in the path switching request For micro-base station, otherwise, the downlink tunnel destination node for including in the path switching request is macro base station；

The MME will when the downlink tunnel destination node for including in the path switching request received is micro-base station Downlink tunnel destination node switches to the micro-base station from macro base station, the downlink for including in the path switching request received When tunnel destination node is macro base station, downlink tunnel destination node is switched into macro base station from micro-base station.

24. a kind of macro base station, which is characterized in that the macro base station includes：

Dual link mode determining module, for determining that the dual link mode of terminal is the resource polymerization or non-bearing of carrying separation The resource polymerization of separation；

Indicating module includes the connection reconfiguration message of the micro-base station configuration information, described in instruction for being sent to the terminal Terminal determines dual link mode according to the connection reconfiguration message；

25. macro base station as claimed in claim 24, which is characterized in that

The indicating module sends the connection reconfiguration message specifically for passing through RRC signaling.

26. macro base station as claimed in claim 24, which is characterized in that

The tunnel building module is specifically used for initiating E-RAB foundation requests to micro-base station, and the E-RAB is established in request and wrapped Containing making the micro-base station know, this dual link mode is the resource polymerization of carrying separation or the resource polymerization of non-bearing separation Instruction information, and receiving that the micro-base station returns when establishing response message, completing the E- between the micro-base station RAB establishes process.

27. macro base station as claimed in claim 26, which is characterized in that

The tunnel building module is specifically used for before micro-base station initiation E-RAB foundation requests, or initiate E- to micro-base station RAB adds the serving cell serving cell for establishing the E-RAB simultaneously, to micro-base station request, alternatively, to institute State the serving cell for establishing the E-RAB that micro-base station request has been added.

28. macro base station as claimed in claim 24, which is characterized in that

The tunnel building module, is additionally operable to establish E-RAB between MME, wherein dual link mode be carrying separation money When source polymerize, the downlink tunnel destination node of the E-RAB established between MME is the macro base station；Otherwise, it is established between MME E-RAB downlink tunnel destination node be micro-base station.

29. macro base station as claimed in claim 28, which is characterized in that

The tunnel building module is specifically used for receiving the E-RAB foundation requests that the MME is initiated, and is determining the double of terminal After connection type, E-RAB is established between the micro-base station, the E-RAB between completion and micro-base station is established after process, will Connection reconfiguration message including own configuration information and the micro-base station configuration information is sent to the terminal, indicates the terminal Determine dual link mode, backward MME return establish response message.

30. macro base station as claimed in claim 28, which is characterized in that

The tunnel building module is specifically used for receiving the E-RAB foundation requests that the MME is initiated, and is determining dual link side When formula is the resource polymerization of carrying separation, the connection reconfiguration message including own configuration information is sent to the terminal, is indicated After the local connection reconfiguration of the terminal progress sets operation, response message is established to MME returns, and, between completion and MME E-RAB establish process and then establish E-RAB between the micro-base station, and will be including the micro-base station configuration information Connection reconfiguration message is sent to the terminal, indicates that the terminal determines dual link mode according to the micro-base station configuration information.

31. a kind of terminal, which is characterized in that the terminal includes：

Dual link mode determining module, for determining dual link mode according to the connection reconfiguration message, wherein：In the connection Have in the micro-base station configuration information that reallocation message includes micro-base station PDCP layers configuration information, eps-bearer mark and When at least one of DRB marks information, determine that dual link mode is the resource polymerization of non-bearing separation；Otherwise, it determines doubly-linked Connect the resource polymerization that mode is carrying separation.

32. a kind of macro base station, which is characterized in that the macro base station includes：

Tunnel building module, when for needing switching in the dual link mode for determining terminal, between the micro-base station of terminal access Establish E-RAB, wherein when dual link mode is switched to the resource polymerization of non-bearing separation by the resource polymerization of carrying separation, The uplink tunnel destination node of the E-RAB established between macro base station and the micro-base station is S-GW, and otherwise, uplink tunnel destination node is Macro base station；

Indicating module includes the connection reconfiguration message of the micro-base station configuration information, described in instruction for being sent to the terminal Terminal determines the dual link mode after switching according to the connection reconfiguration message, wherein：The dual link mode is that carrying detaches Resource polymerization or non-bearing separation resource polymerization, in the micro-base station configuration information that the connection reconfiguration message includes It is double after switching when having at least one of PDCP layers configuration information, eps-bearer marks and the DRB marks of micro-base station information Connection type is the resource polymerization of non-bearing separation；Otherwise, the dual link mode after switching is the resource polymerization of carrying separation.

33. macro base station as claimed in claim 32, which is characterized in that the macro base station further includes：

Path switching request module, for initiating path switching request to MME, wherein in dual link mode by carrying separation When resource polymerization is switched to the resource polymerization of non-bearing separation, the downlink tunnel destination node for including in the path switching request is Micro-base station indicates that downlink tunnel destination node is switched to the micro-base station by the MME from macro base station, otherwise, the path switching The downlink tunnel destination node for including in request is macro base station, indicates that the MME switches to downlink tunnel destination node from micro-base station Macro base station.

34. a kind of terminal, which is characterized in that the terminal includes：

Dual link mode determining module, for determining dual link mode according to the connection reconfiguration message, wherein：The dual link Mode be carrying separation resource polymerization or non-bearing separation resource polymerization, the connection reconfiguration message include it is described micro- There is at least one of PDCP layers configuration information, eps-bearer marks and the DRB marks of micro-base station letter in base station configuration information When breath, determine that dual link mode is switched to the resource polymerization of non-bearing separation by the resource polymerization of carrying separation；Otherwise, it determines double The resource polymerization that connection type is detached by non-bearing is switched to the resource polymerization of carrying separation.