CN103517358B - Method, system and device for transmitting data in process of switching access points - Google Patents

Method, system and device for transmitting data in process of switching access points Download PDF

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Publication number
CN103517358B
CN103517358B CN201210224338.6A CN201210224338A CN103517358B CN 103517358 B CN103517358 B CN 103517358B CN 201210224338 A CN201210224338 A CN 201210224338A CN 103517358 B CN103517358 B CN 103517358B
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China
Prior art keywords
radio bearer
described
access point
cell
data radio
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CN201210224338.6A
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Chinese (zh)
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CN103517358A (en
Inventor
张大钧
杨义
梁靖
鲍炜
许芳丽
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电信科学技术研究院
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Priority to CN201210224338.6A priority Critical patent/CN103517358B/en
Publication of CN103517358A publication Critical patent/CN103517358A/en
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Publication of CN103517358B publication Critical patent/CN103517358B/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/04Reselecting a cell layer in multi-layered cells

Abstract

The embodiment of the invention relates to the technical field of wireless communication, in particular to a method, system and device for transmitting data in the process of switching access points. The method, system and device for transmitting data are used for solving the problem in the prior art that under the condition of a heterogeneous network, and when the access points are switched, interruption and time delay of a data surface can be increased. The method of the embodiment comprises that a user device determines that all or part of a DRB is reshuffled from one cell to another cell under the condition that RRC connection is not changed, in the process that access point switching is conducted by the user device, data are transmitted through an original data radio bearer, wherein the original data radio bearer is used in the end before access point switching of the data surface. Due to the fact that in the process that access point switching is conducted by the user device, the data are transmitted through the original data radio bearer, so that the interruption and time delay of the data surface when the access points are switched under the condition of the heterogeneous network is reduced, and switching efficiency is further improved, and data transmission time is shortened.

Description

The method of transmission data, system and equipment in a kind of access point handoff procedure

Technical field

The present invention relates to wireless communication technology field, particularly to a kind of side of transmission data in access point handoff procedure Method, system and equipment.

Background technology

With the deployment of Home eNodeB, Microcell etc., traditional homogeneous network only having macrocell will progressively be evolved to many The heterogeneous network (hetnet) that type cell coexists.In the case of heterogeneous network, the related performance of mobility is (as switching, RLF (Radio Link Failure, Radio Link Failure) etc.) need to improve further, in order to improve travelling performance, need to introduce New framework, i.e. chain of command and user plane isolation technics.

In X2 handoff procedure, according to measurement result, enforcement of the judgment X2 handover operation, by source eNB for source eNB (evolution base station) Send handover request message to target eNB;Target eNB, according to these parameters, configures new carrying, if configuration successful, target ENB will return switching response message;Source eNB sends RRC (Radio Resource Control, wireless heterogeneous networks) weight to UE Configuration message, meanwhile, source eNB stops reception and the transmission of data and chain of command;After UE receives message, stop at source eNB's The reception of data and chain of command and transmission, carry out synchronization operation to target eNB, once completing uplink synchronous, UE will Start to enable new safe key, start to apply new PDCP (Packet Data Convergence Protocol, packet count According to aggregation protocol)/RLC (Radio Link Control, wireless spread-spectrum technology)/MAC (Medium Access Control;Matchmaker Body Access Control) entity carries out reception and the transmission of data and chain of command, and what UE sent at first is that RRC reconfigures completion message; After target eNB receives this message, return ACK (confirmation) message of RLC, start simultaneously at the transmission carrying out downlink data;UE exists After receiving the ACK that RRC reconfigures completion message, start the up transmission of data surface.

In existing heterogeneous network, as shown in Figure 1A, Macro cell (macrocell) provides basis to cover, and is operated in existing There is LTE (Long Term Evolution, Long Term Evolution) cellular band, and Local cell (home cell) provides focus to cover Lid, can be operated in 3GHz with super band, adopt high-speed link (wire/wireless) phase between Local Cell and Macro Cell Even, when UE moves in Macro cell coverage, cutting between Macro cell and Local cell may constantly be executed Change operation.

When UE moves in Macro cell coverage, may constantly execute Macro cell and Local cell it Between handover operation, according to the switching characteristic between existing X2 interface, from send RRC reconfiguration message to UE from the beginning of, source eNB The the sending and receiving of all carryings will be terminated, and only when UE is accomplished to the synchronization of target eNB, and complete RRC and reconfigure The transmission of completion message and after confirming, just start to apply new carry configuration and carry out sending and receiving of data and chain of command, from And increased the interruption time delay of data surface.

In sum, the interruption time delay of data surface can be increased at present in the case of heterogeneous network when carrying out access point switching.

Content of the invention

The method of transmission data, system and equipment in a kind of access point handoff procedure provided in an embodiment of the present invention, in order to Solve in the case of heterogeneous network, the interruption time delay of data surface present in prior art, can be increased when carrying out access point switching Problem.

The method of transmission data in a kind of access point handoff procedure provided in an embodiment of the present invention, including:

User equipment determines to be needed in the case that radio resource control RRC connection is constant, by all or part of data no Line carries DRB and puts another cell from a cell re-configuration;

Described user equipment in carrying out access point handoff procedure, by original Data Radio Bearer transmission data, its Described in original Data Radio Bearer be by data surface access point switching before the last Data Radio Bearer using.

The method of transmission data in another kind access point handoff procedure provided in an embodiment of the present invention, including:

Macro base station determines that user equipment needs in the case that radio resource control RRC connection is constant, will be all or part of Data Radio Bearer DRB puts another cell from a cell re-configuration;

Described macro base station sends RRC to described user equipment and connects reconfiguration message, is used for notifying described user equipment to enter Row switching access point, and by original Data Radio Bearer transmission data in carrying out access point handoff procedure;

Wherein, described original Data Radio Bearer is by the data finally using before the access point switching of data surface Radio bearer.

In a kind of access point handoff procedure provided in an embodiment of the present invention, the user equipment of transmission data includes:

First processing module, needs in the case that radio resource control RRC connection is constant for determining, will whole or portion Divided data radio bearer DRB puts another cell from a cell re-configuration;

Transport module, for carrying out in access point handoff procedure, by original Data Radio Bearer transmission data, its Described in original Data Radio Bearer be by data surface access point switching before the last Data Radio Bearer using.

The base station of transmission data in a kind of access point handoff procedure provided in an embodiment of the present invention, including:

Second processing module, for determining that user equipment needs, will in the case that radio resource control RRC connection is constant All or part of Data Radio Bearer DRB puts another cell from a cell re-configuration;

Notification module, connects reconfiguration message for sending RRC to described user equipment, is used for notifying described user equipment Switch over access point, and by original Data Radio Bearer transmission data in carrying out access point handoff procedure;

Wherein, described original Data Radio Bearer is by the data finally using before the access point switching of data surface Radio bearer.

The system of transmission data in a kind of access point handoff procedure provided in an embodiment of the present invention, including:

Macro base station, for determine user equipment need radio resource control RRC connect constant in the case of, will all or Partial data radio bearer DRB puts another cell from a cell re-configuration, sends RRC to described user equipment and connects weight Configuration message, is used for notifying described user equipment to switch over access point, and passes through original in carrying out access point handoff procedure Data Radio Bearer transmission data;

User equipment, needs in the case that radio resource control RRC connection is constant for determining, by all or part of number According to radio bearer DRB after a cell re-configuration is put another cell, in carrying out access point handoff procedure, by original Data Radio Bearer transmission data, wherein said original Data Radio Bearer be by data surface access point switching before The Data Radio Bearer finally using.

Because user equipment is carrying out in access point handoff procedure, by original Data Radio Bearer transmission data, from And reduce and carrying out the interruption time delay according to face for the access point switching in the case of heterogeneous network;Further increase switching effect Rate, shortens data transmission period.

Brief description

Figure 1A is E-UTRAN (the Evolved Universal Terrestrial Radio comprising Local eNB Access Network, the general land wireless network of evolution) network architecture schematic diagram;

Figure 1B adopts chain of command network architecture schematic diagram detached with user plane for the embodiment of the present invention;

Fig. 2 is the system structure diagram of transmission data in embodiment of the present invention access point handoff procedure;

Fig. 3 is the structural representation of user equipment in the system of transmission data in embodiment of the present invention access point handoff procedure Figure;

Fig. 4 is the structural representation of macro base station in the system of transmission data in embodiment of the present invention access point handoff procedure;

Fig. 5 is the method flow schematic diagram of embodiment of the present invention user equipment transmission data in access point handoff procedure;

Fig. 6 is the method stream of embodiment of the present invention macro base station notifying user equipment transmission data in access point handoff procedure Journey schematic diagram.

Specific embodiment

Embodiment of the present invention user equipment determines to be needed in the case that RRC connection is constant, by all or part of DRB (Data Radio Bearer, Data Radio Bearer), after a cell re-configuration is put another cell, is carrying out access point In handoff procedure, by original Data Radio Bearer transmission data, wherein original Data Radio Bearer is by data surface Access point switching before the last Data Radio Bearer using.Because user equipment is being carried out in access point handoff procedure, lead to Cross original Data Radio Bearer transmission data, thus reduce carrying out access point switching according to face in the case of heterogeneous network Interruption time delay.

Wherein, the scheme of the embodiment of the present invention is applied in chain of command environment detached with user plane.As shown in Figure 1B, originally Inventive embodiments adopt in the chain of command network architecture detached with user plane, the SRB of UE (Signaling Radio Bearer, Signaling Radio Bearer) it is retained on Macro eNB, and the RLC/MAC/PHY (physical layer) of all DRB is maintained at Local eNB On.

In following declarative procedure, first implement to illustrate from the cooperation of network side and user equipment side, finally distinguish Illustrate from the enforcement of network side and user equipment side, but this does not imply that the two must coordinate enforcement, in fact, working as net When network side and user equipment side are performed separately, also solve respectively in the problems of network side, user equipment side, simply two When person is used in combination, superior technique effect can be obtained.

As shown in Fig. 2 the system of transmission data includes in embodiment of the present invention access point handoff procedure:Macro base station 10 and use Family equipment 20.

Macro base station 10, for determine user equipment need RRC connect constant in the case of, by all or part of DRB from After one cell re-configuration is put in another cell, send message to user equipment, switch over for notifying user equipment and connect Access point, and by original Data Radio Bearer transmission data in carrying out access point handoff procedure;

User equipment 20, for needing to connect constant feelings in RRC according to the determination that notifies receiving from macro base station 10 Under condition, by all or part of DRB after a cell re-configuration is put another cell, in carrying out access point handoff procedure, By original Data Radio Bearer transmission data, wherein original Data Radio Bearer is by the access point switching of data surface The last Data Radio Bearer using before.

It is preferred that macro base station 10 is RRC reconfiguration message to the message that user equipment sends;Accordingly, user equipment 20 According to the parameter receiving in the RRC reconfiguration message of cell-of-origin, determine and need in the case that RRC connection is constant, will All or part of DRB puts another cell from a cell re-configuration.

In force, user equipment 20 is the user equipment being connected to macro base station 10.When macro base station 10 finds user equipment 20 when moving closer to or leaving the overlay area of Local eNB, determine will the access point switching of execution data surface (determining needs In the case that RRC connection is constant, all or part of DRB is put another cell from a cell re-configuration).

It is preferred that user equipment 20 determines needing in the case that RRC connection is constant, by all or part of DRB from one After cell re-configuration is put in another cell, configure new Data Radio Bearer.

Specifically, user equipment 20, according to the relevant parameter in RRC information, keeps PDCP entity constant, configuration is new RLC/MAC/PHY entity and the mapping relations of each inter-entity.

Wherein, switch over the difference according to cell-of-origin and Target cell for the access point, there are multiple situations, enter separately below Row is introduced.

Cell-of-origin in situation one, access point handoff procedure belongs to macro base station 10, and Target cell belongs to home base stations.

Specifically, in access point handoff procedure, user equipment 20 after configuring new Data Radio Bearer, by former While some Data Radio Bearer transmission datas, carry out down-going synchronous operation for Target cell, such as in specified RACH (Random Access Channel, RACH) upper proprietary Preamble (pilot tone) code that sends is to Target cell.

In force, if collocating uplink in RRC reconfiguration course, user equipment 20 is by original Data Radio Bearer While transmission data, carry out uplink synchronous operation for Target cell, such as shifted to an earlier date according to the upstream time that network side returns The information such as amount carry out uplink synchronous.

Wherein, in access point handoff procedure, user equipment 20 is by original Data Radio Bearer transmission data Meanwhile, receiving after Rach Response (random access channel responses) message of Target cell, generating RRC and join again Put completion message, and send RRC to macro base station and reconfigure completion message, then user equipment 20 starts transmission on new DRB Data.

In force, for original Data Radio Bearer, user equipment 20 has multiple processing modes.

Processing mode one, user equipment 20 are receiving the HARQ of RRC completion message (Hybrid Automatic Repeat ReQuest, hybrid automatic repeat-request) after ACK feedback or RLC ACK feedback, by new Data Radio Bearer transmission data, Stop at original Data Radio Bearer transmission data simultaneously;Then, after new Data Radio Bearer receives data, delete Except original Data Radio Bearer, or delete original Data Radio Bearer through setting duration;

Accordingly, macro base station 10 is after receiving and reconfiguring completion message from the RRC of user equipment 20, to user equipment 20 Send the ACK feedback of rlc layer, stop by original Data Radio Bearer transmission data simultaneously and pass through in Target cell new Delete original Data Radio Bearer after Data Radio Bearer transmission data or stop transmitting by original Data Radio Bearer Data is simultaneously deleting original Data Radio Bearer after setting duration, and notifies Target cell wirelessly to hold by new data Carry transmission data.

In force, set duration can as needed, empirical value or emulation set.

For processing mode one, user equipment 20, after new DRB transmitting data, stops at original data wireless Carry in this period before transmission data, user equipment 20 uploads in new and original two Data Radio Bearer simultaneously Transmission of data.

Network side after new DRB transmitting data, stops at original Data Radio Bearer and passes in user equipment 20 In this period before transmission of data, macro base station 10 is simultaneously in new and original two Data Radio Bearer transmitting datas.

Processing mode two, user equipment 20 reconfigure and complete to disappear sending RRC to the cell-of-origin in access point handoff procedure After breath, delete original Data Radio Bearer.

Specifically, user equipment 20 is sending after RRC reconfigures completion message to the cell-of-origin in access point handoff procedure, Start, while new DRB transmitting data, to delete original Data Radio Bearer.

Accordingly, macro base station 10 is after receiving and reconfiguring completion message from the RRC of user equipment, to user equipment 20 The ACK sending rlc layer feeds back, and deletes original Data Radio Bearer simultaneously.

Cell-of-origin in situation two, access point handoff procedure belongs to home base stations, and Target cell belongs to home base stations.

Specifically, in access point handoff procedure, user equipment 20, after configuring new Data Radio Bearer, generates RRC Reconfigure completion message, and send RRC to macro base station and reconfigure completion message, then user equipment 20 starts on new DRB Transmission data.

In force, for original Data Radio Bearer, user equipment 20 has multiple processing modes.

Processing mode one, user equipment 20 receive RRC completion message HARQ ACK feed back or RLC ACK feedback after, By new Data Radio Bearer transmission data, stop at original Data Radio Bearer transmission data simultaneously;Then pass through new Data Radio Bearer receive data after, delete original Data Radio Bearer, or through setting duration delete original number According to radio bearer;

Accordingly, after macro base station 10 sends RRC connection reconfiguration message, number is transmitted by new Data Radio Bearer According to notifying cell-of-origin to stop by original Data Radio Bearer transmission data and in Target cell by new data no simultaneously Line is deleted original Data Radio Bearer or notifies cell-of-origin to stop passing through original Data Radio Bearer after carrying transmission data Transmission data is simultaneously deleting original Data Radio Bearer after setting duration, and notifies Target cell by new data no Line carries transmission data.

In force, set duration can as needed, empirical value or emulation set.

For processing mode one, user equipment 20, after new DRB transmitting data, stops at original data wireless Carry in this period before transmission data, user equipment 20 uploads in new and original two Data Radio Bearer simultaneously Transmission of data.

Macro base station 10 stops at original Data Radio Bearer in user equipment 20 after new DRB transmitting data In this period before transmission data, macro base station 10 transmits number on new and original two Data Radio Bearer simultaneously According to.

Processing mode two, user equipment 20 reconfigure and complete to disappear sending RRC to the cell-of-origin in access point handoff procedure After breath, delete original Data Radio Bearer.

Specifically, user equipment 20 is sending after RRC reconfigures completion message to the cell-of-origin in access point handoff procedure, Start, while new DRB transmitting data, to delete original Data Radio Bearer.

Accordingly, after macro base station 10 sends RRC connection reconfiguration message, number is transmitted by new Data Radio Bearer According to original Data Radio Bearer is deleted in notice cell-of-origin simultaneously.

Cell-of-origin in situation three, access point handoff procedure belongs to home base stations, and Target cell belongs to macro base station.

User equipment 20 receive RRC completion message HARQ ACK feed back or RLC ACK feedback after, by new data Radio bearer transmissions data, stops at original Data Radio Bearer transmission data simultaneously;Then wirelessly held by new data After load receives data, delete original Data Radio Bearer, or delete original Data Radio Bearer through setting duration;

Accordingly, macro base station 10, after receiving and reconfiguring completion message from the RRC of user equipment 20, is sent out to user equipment The ACK sending rlc layer feeds back, and notifies cell-of-origin to stop by original Data Radio Bearer transmission data and in Target cell simultaneously Delete original Data Radio Bearer or notify cell-of-origin to stop by original after new Data Radio Bearer transmission data Data Radio Bearer transmission data and deleting original Data Radio Bearer after setting duration, and by new data Radio bearer transmissions data.

In force, set duration can as needed, empirical value or emulation set.

For processing mode one, user equipment 20, after new DRB transmitting data, stops at original data wireless Carry in this period before transmission data, user equipment 20 uploads in new and original two Data Radio Bearer simultaneously Transmission of data.

Network side after new DRB transmitting data, stops at original Data Radio Bearer and passes in user equipment 20 In this period before transmission of data, macro base station 10 is simultaneously in new and original two Data Radio Bearer transmitting datas.

Processing mode two, user equipment 20 reconfigure and complete to disappear sending RRC to the cell-of-origin in access point handoff procedure After breath, delete original Data Radio Bearer.

Specifically, user equipment 20 is sending after RRC reconfigures completion message to the cell-of-origin in access point handoff procedure, Start, while new DRB transmitting data, to delete original Data Radio Bearer.

Accordingly, macro base station 10 is after receiving and reconfiguring completion message from the RRC of user equipment, to user equipment 20 The ACK sending rlc layer feeds back, and notifies cell-of-origin to delete original Data Radio Bearer simultaneously.

As shown in figure 3, the user equipment in the system of transmission data in embodiment of the present invention access point handoff procedure includes: First processing module 300 and transport module 310.

First processing module 300, for determine need RRC connect constant in the case of, by all or part of DRB from one Individual cell re-configuration is put in another cell;

Transport module 310, for carrying out in access point handoff procedure, transmits number by original Data Radio Bearer According to wherein original Data Radio Bearer is by the Data Radio Bearer finally using before the access point switching of data surface.

It is preferred that first processing module 300 is according to the parameter receiving in the RRC reconfiguration message of cell-of-origin, really Fixed needs, in the case that RRC connection is constant, all or part of DRB are put another cell from a cell re-configuration.

It is preferred that first processing module 300 determine need RRC connect constant in the case of, by all or part of DRB from After one cell re-configuration is put in another cell, configure new Data Radio Bearer.

It is preferred that first processing module 300 reconfigures and completes to disappear sending RRC to the cell-of-origin in access point handoff procedure After breath, delete original Data Radio Bearer;Or send RRC to the cell-of-origin in access point handoff procedure and reconfigure and complete to disappear Breath, and after new Data Radio Bearer receives data, delete original Data Radio Bearer;Or switched to access point After cell-of-origin transmission RRC in journey reconfigures completion message, delete original Data Radio Bearer through setting duration.

It is preferred that the Target cell in access point handoff procedure belongs to home base stations;First processing module 300 is by former While some Data Radio Bearer transmission datas, carry out down-going synchronous operation for Target cell.

If it is preferred that collocating uplink in RRC reconfiguration course, first processing module 300 is wireless by original data While carrying transmission data, carry out uplink synchronous operation for Target cell.

It is preferred that first processing module 300, while by original Data Radio Bearer transmission data, is receiving After the Rach Response message of Target cell, generate and send RRC and reconfigure completion message.

It is preferred that the cell-of-origin in access point handoff procedure belongs to home base stations, Target cell belongs to home base stations;First Processing module 300, after the HARQ ACK receiving RRC completion message feeds back or RLC ACK feeds back, is wirelessly held by new data Carry transmission data, stop at original Data Radio Bearer transmission data simultaneously.

It is preferred that the cell-of-origin in access point handoff procedure belongs to home base stations, Target cell belongs to macro base station;At first Reason module 300, while by original Data Radio Bearer transmission data, generates and sends RRC and reconfigures completion message.

As shown in figure 4, the macro base station in the system of transmission data in embodiment of the present invention access point handoff procedure includes:The Two processing modules 400 and notification module 410.

Second processing module 400, for determining that user equipment needs, will whole or portion in the case that RRC connection is constant DRB is divided to put another cell from a cell re-configuration;

Notification module 410, connects reconfiguration message for sending RRC to user equipment, carries out for notifying user equipment Switching access point, and by original Data Radio Bearer transmission data in carrying out access point handoff procedure;

Wherein, the data that original Data Radio Bearer is by finally using before the access point switching of data surface is wireless Carry.

It is preferred that the cell-of-origin in access point handoff procedure belongs to macro base station, Target cell belongs to home base stations;At second , after receiving and reconfiguring completion message from the RRC of user equipment, the ACK sending rlc layer to user equipment is anti-for reason module 400 Feedback, deletes original Data Radio Bearer simultaneously or stops by original Data Radio Bearer transmission data and in Target cell Delete original Data Radio Bearer or stop wireless by original data after new Data Radio Bearer transmission data Carry transmission data and deleting original Data Radio Bearer after setting duration, and notify Target cell to pass through new number According to radio bearer transmissions data;

Wherein, new Data Radio Bearer is by access point handoff procedure user device configuration.

It is preferred that the cell-of-origin in access point handoff procedure belongs to home base stations, Target cell belongs to home base stations;Second Processing module 400, by new Data Radio Bearer transmission data, notifies cell-of-origin to delete original Data Radio Bearer simultaneously Or notify cell-of-origin to stop wirelessly holding by new data by original Data Radio Bearer transmission data and in Target cell Delete original Data Radio Bearer after carrying transmission data or notify cell-of-origin to stop transmitting by original Data Radio Bearer Data is simultaneously deleting original Data Radio Bearer after setting duration, and notifies Target cell wirelessly to hold by new data Carry transmission data;

Wherein, new Data Radio Bearer is by access point handoff procedure user device configuration.

It is preferred that the cell-of-origin in access point handoff procedure belongs to home base stations, Target cell belongs to macro base station;At second , after receiving and reconfiguring completion message from the RRC of user equipment, the ACK sending rlc layer to user equipment is anti-for reason module 400 Feedback, notifies cell-of-origin to delete original Data Radio Bearer or notify cell-of-origin to stop passing through original Data Radio Bearer simultaneously Transmission data simultaneously deletes original Data Radio Bearer or logical in Target cell after new Data Radio Bearer transmission data Know that cell-of-origin stops by original Data Radio Bearer transmission data and deleting original data no after setting duration Line carries, and by new Data Radio Bearer transmission data;

Wherein, new Data Radio Bearer is by access point handoff procedure user device configuration.

Based on same inventive concept, additionally provide a kind of user equipment in the embodiment of the present invention in access point handoff procedure The method of transmission data and the method for macro base station notifying user equipment transmission data in access point handoff procedure, due to these sides The principle of method solve problem is similar to the system of transmission data in embodiment of the present invention access point handoff procedure, therefore these methods Enforcement may refer to the enforcement of system, repeat no more in place of repetition.

As shown in figure 5, embodiment of the present invention user equipment is under in access point handoff procedure, the method for transmission data includes Row step:

Step 501, user equipment determine to be needed in the case that RRC connection is constant, and all or part of DRB is little from one Area is reconfigured in another cell;

Step 502, user equipment, in carrying out access point handoff procedure, transmit number by original Data Radio Bearer According to wherein original Data Radio Bearer is by the Data Radio Bearer finally using before the access point switching of data surface.

It is preferred that user equipment is according to the parameter receiving in the RRC reconfiguration message of cell-of-origin, determines and need In the case that RRC connection is constant, all or part of DRB is put another cell from a cell re-configuration.

User equipment determines to be needed, in the case that RRC connection is constant, all or part of DRB to be put from a cell re-configuration After in another cell, configure new Data Radio Bearer.

Wherein, switch over the difference according to cell-of-origin and Target cell for the access point, there are multiple situations, enter separately below Row is introduced.

Cell-of-origin in situation one, access point handoff procedure belongs to macro base station, and Target cell belongs to home base stations.

Specifically, in access point handoff procedure, user equipment after configuring new Data Radio Bearer, by original Data Radio Bearer transmission data while, carry out down-going synchronous operation for Target cell.

In force, if collocating uplink in RRC reconfiguration course, user equipment is being passed by original Data Radio Bearer While transmission of data, carry out uplink synchronous operation for Target cell.

Wherein, in access point handoff procedure, user equipment is same by original Data Radio Bearer transmission data When, receiving after the Rach Response message of Target cell, generating RRC and reconfigure completion message, and to macro base station Send RRC and reconfigure completion message, then user equipment 20 starts in new DRB transmitting data.

In force, for original Data Radio Bearer, user equipment has multiple processing modes.

Processing mode one, user equipment, after the HARQ ACK receiving RRC completion message feeds back or RLC ACK feeds back, lead to Cross new Data Radio Bearer transmission data, stop at original Data Radio Bearer transmission data simultaneously;Then pass through new After Data Radio Bearer receives data, delete original Data Radio Bearer, or delete original data through setting duration Radio bearer

Processing mode two, user equipment are reconfiguring completion message to the cell-of-origin transmission RRC in access point handoff procedure Afterwards, delete original Data Radio Bearer.

Specifically, user equipment, after reconfiguring completion message to the cell-of-origin transmission RRC in access point handoff procedure, leaves Begin, while new DRB transmitting data, to delete original Data Radio Bearer.

Cell-of-origin in situation two, access point handoff procedure belongs to home base stations, and Target cell belongs to home base stations.

Specifically, in access point handoff procedure, user equipment, after configuring new Data Radio Bearer, generates RRC weight Configuration completion message, and reconfigure completion message to macro base station transmission RRC, then user equipment starts transmission on new DRB Data.

In force, for original Data Radio Bearer, user equipment has multiple processing modes.

Processing mode one, user equipment, after the HARQ ACK receiving RRC completion message feeds back or RLC ACK feeds back, lead to Cross new Data Radio Bearer transmission data, stop at original Data Radio Bearer transmission data simultaneously;Then pass through new After Data Radio Bearer receives data, delete original Data Radio Bearer, or delete original data through setting duration Radio bearer;

Processing mode two, user equipment are reconfiguring completion message to the cell-of-origin transmission RRC in access point handoff procedure Afterwards, delete original Data Radio Bearer.

Specifically, user equipment 20 is sending after RRC reconfigures completion message to the cell-of-origin in access point handoff procedure, Start, while new DRB transmitting data, to delete original Data Radio Bearer.

Cell-of-origin in situation three, access point handoff procedure belongs to home base stations, and Target cell belongs to macro base station.

User equipment receive RRC completion message HARQ ACK feed back or RLC ACK feedback after, by new data no Line carries transmission data, stops at original Data Radio Bearer transmission data simultaneously;Then pass through new Data Radio Bearer After receiving data, delete original Data Radio Bearer, or delete original Data Radio Bearer through setting duration.

Processing mode two, user equipment are reconfiguring completion message to the cell-of-origin transmission RRC in access point handoff procedure Afterwards, delete original Data Radio Bearer.

Specifically, user equipment, after reconfiguring completion message to the cell-of-origin transmission RRC in access point handoff procedure, leaves Begin, while new DRB transmitting data, to delete original Data Radio Bearer.

As shown in fig. 6, embodiment of the present invention macro base station notifying user equipment transmission data in access point handoff procedure Method comprises the following steps:

Step 601, macro base station determine user equipment need RRC connect constant in the case of, by all or part of DRB from One cell re-configuration is put in another cell;

Step 602, macro base station send RRC to user equipment and connect reconfiguration message, are cut for notifying user equipment Changing-over access point, and by original Data Radio Bearer transmission data in carrying out access point handoff procedure;Wherein original number It is by the last Data Radio Bearer using before the access point switching of data surface according to radio bearer.

It is preferred that the cell-of-origin in access point handoff procedure belongs to macro base station, Target cell belongs to home base stations;

Macro base station sends after RRC connects reconfiguration message and also includes:

Macro base station, after receiving and reconfiguring completion message from the RRC of user equipment, sends wireless link to user equipment Control the correct ACK feedback of rlc layer, delete original Data Radio Bearer simultaneously or stop passing through original Data Radio Bearer Transmission data is simultaneously deleted original Data Radio Bearer in Target cell after new Data Radio Bearer transmission data or is stopped Only by original Data Radio Bearer transmission data and deleting original Data Radio Bearer after setting duration, and lead to Know Target cell by new Data Radio Bearer transmission data;

Wherein, new Data Radio Bearer is by access point handoff procedure user device configuration.

It is preferred that the cell-of-origin in access point handoff procedure belongs to home base stations, Target cell belongs to home base stations;

Macro base station sends after RRC connects reconfiguration message and also includes:

Macro base station, by new Data Radio Bearer transmission data, notifies cell-of-origin to delete original data simultaneously and wirelessly holds Carry or notify cell-of-origin stopping by original Data Radio Bearer transmission data and wireless by new data in Target cell Delete original Data Radio Bearer after carrying transmission data or notify cell-of-origin to stop passing by original Data Radio Bearer Transmission of data is simultaneously deleting original Data Radio Bearer after setting duration, and notifies Target cell wireless by new data Carry transmission data;

Wherein, new Data Radio Bearer is by access point handoff procedure user device configuration.

It is preferred that the cell-of-origin in access point handoff procedure belongs to home base stations, Target cell belongs to macro base station;

Macro base station sends after RRC connects reconfiguration message and also includes:

Macro base station, after receiving and reconfiguring completion message from the RRC of user equipment, sends rlc layer to user equipment ACK feeds back, and notifies cell-of-origin to delete original Data Radio Bearer or notify cell-of-origin to stop by original data no simultaneously Line carries transmission data and deletes original data in Target cell after new Data Radio Bearer transmission data and wirelessly hold Carry or notify cell-of-origin to stop by original Data Radio Bearer transmission data and original deleting after setting duration Data Radio Bearer, and by new Data Radio Bearer transmission data;

Wherein, new Data Radio Bearer is by access point handoff procedure user device configuration.

Wherein, Fig. 5 and Fig. 6 can synthesize a flow process, forms the side of a transmission data in access point handoff procedure Method, that is, first carry out step 601 and step 602, then execution step 501 and step 502.

Give some instances below for different scene row and the solution of the present invention is illustrated.

Scene one, UE currently only have connection with Macro eNB.As Macro eNB to Local eNB, enumerate Three examples.

Example one,

Step 1:UE receives and connects after reconfiguration message from the RRC of Macro eNB, according to message intrinsic parameter, judges This is DRB reconfiguration course (reconfiguring on DRB to Local eNB);

Step 2:UE still adopts old DRB link to receive and send PDCP PDU;

Step 3:UE configures RLC, MAC and the PHY layer of new DRB;

Step 4:UE begins for new Local eNB and carries out down-going synchronous operation;

Step 5:If being configured with up, UE initiates for new Local eNB uplink synchronous operation;

Step 6:UE, after Local eNB receives this Rach response message, starts to organize and send RRC and joins again Put completion message;

Step 6a:UE starts the downlink data allowing to receive new DRB;

Step 7:Macro eNB receives after this RRC reconfigures completion message, and tissue is sent the ACK feedback of rlc layer, Stop the data is activation of former DRB link simultaneously, notify Local eNB to start to receive on new DRB and send data;

Step 8:UE receives that RRC joins the HARQ ACK feedback of completion message again or RRC joins the RLC ACK of completion message again Afterwards, will start to send data on new DRB, terminate the data is activation of old DRB simultaneously;

Step 9:When UE receives from first packet of new DRB, or wait certain time again after step 8, Deleted the link of former DRB completely;

Step 10:When Local eNB receives first packet on new DRB, to notify Macro eNB to delete completely former The link of DRB, or wait certain time Macro eNB to delete the link of former DRB completely after step 7 again.

Example two,

Step 1~4 are with step 1~4 of example one;

Step 5:After new Local eNB receives this proprietary preamble information, respond Rach response and disappear Breath, starts the upstream data allowing to receive new DRB;

Step 6:UE, after Local eNB receives this Rach response message, starts to organize and send RRC and joins again Put completion message, receive on new DRB simultaneously and send data, stop data is activation on old DRB link simultaneously;

Step 7:Macro eNB receives after this RRC reconfigures completion message, and tissue is sent the ACK feedback of rlc layer, Notify Local eNB to start to send data on new DRB, terminate old DRB link simultaneously and send data;

Step 8:UE receives that RRC joins the HARQ ACK feedback of completion message again or RRC joins the RLC of completion message again ACK.

Step 9:When UE receives from first packet of new DRB, or wait certain time again after step 8, Deleted the link of former DRB completely;

Step 10:When Local eNB receives first packet on new DRB, to notify Macro eNB to delete completely former The link of DRB, or wait certain time Macro eNB to delete the link of former DRB completely after step 7 again.

Example three,

Step 1~6:Step 1~6 with example one

Step 6a:UE starts to allow the transmitting-receiving in new DRB enterprising row data, and UE deletes old DRB link simultaneously;

Step 7:Macro eNB receives after this RRC reconfigures completion message, and tissue is sent the ACK feedback of rlc layer, Delete old DRB link simultaneously, notify Local eNB in the transmitting-receiving of new DRB enterprising row data.

Scene two, UE have connection (, in Macro, DRB is in local for SRB) simultaneously with Macro eNB and local eNB.For The situation of Local eNB to Macro eNB, enumerates two examples.

Example one,

Step 1:UE receives and connects after reconfiguration message from the RRC of Macro eNB, according to message intrinsic parameter, judges This is DRB reconfiguration course (reconfiguring on DRB to Macro eNB);

Step 2:UE still adopts old DRB link to receive and send PDCP PDU;

Step 3:UE is initially configured the RLC/MAC/PHY layer of new DRB;

Step 4:UE starts to organize and send RRC and reconfigures completion message;

Step 4a:UE starts the downlink data allowing to receive new DRB;

Step 5:Macro eNB receives after this RRC reconfigures completion message, and tissue is sent the ACK feedback of rlc layer, Notify Local eNB to stop the data is activation of former DRB link simultaneously, and start to receive on new DRB and send data;

Step 6:UE receives that RRC joins the HARQ ACK feedback of completion message again or RRC joins the RLC ACK of completion message again Afterwards, will start to send data on new DRB, terminate the data is activation of old DRB simultaneously;

Step 7:When UE receives from first packet of new DRB, or wait certain time again after step 6, Deleted the link of former DRB completely;

Step 8:When Local eNB receives first packet on new DRB, or wait a timing after step 5 again Between, deleted the link of former DRB completely.

Example two,

Step 1:After Macro eNB organizes and sends RRC connection reconfiguration message, start to allow in the enterprising line number of new DRB According to transmitting-receiving, simultaneously notify Local eNB delete former DRB link.

Step 2:UE receives and connects after reconfiguration message from the RRC of Macro eNB, according to message intrinsic parameter, judges This is DRB reconfiguration course (reconfiguring on DRB to Macro eNB);

Step 2:UE deletes old DRB link;And start to allow the transmitting-receiving in new DRB enterprising row data;

Step 3:UE starts to organize and send RRC and reconfigures completion message;

Step 4:Macro eNB receives after this RRC reconfigures completion message, and tissue is sent the ACK feedback of rlc layer.

Step 5:UE receives this ACK.

Scene three, UE have connection (, in Macro, DRB is in local for SRB) with a Macro eNB and local eNB simultaneously. In the case of from a Local eNB to another Local eNB, enumerate two examples.

Example one,

Step 1~6a:Identical with the example one step 1~6a of scene one;

Step 7:Macro eNB receives after this RRC reconfigures completion message, and tissue is sent the ACK feedback of rlc layer, Notify former Local eNB to stop the data is activation of former DRB link simultaneously, notify target Local eNB to start to connect on new DRB Receive and send data;

Step 8:UE receives that RRC joins the HARQ ACK feedback of completion message again or RRC joins the RLC ACK of completion message again Afterwards, will start to send data on new DRB, terminate the data is activation of old DRB simultaneously;

Step 9:When UE receives from first packet of new DRB, or wait certain time again after step 8, Deleted the link of former DRB completely;

Step 10:When target Local eNB receives first packet on new DRB, or wait one after step 7 again Fix time, deleted the link of former DRB completely.

Example two,

Step 1~6a:Identical with the example one step 1~6a of scene one;

Step 7:Macro eNB receives after this RRC reconfigures completion message, and tissue is sent the ACK feedback of rlc layer, Notify former Local eNB to delete old DRB link simultaneously, notify target Local eNB in the transmitting-receiving of new DRB enterprising row data.

Those skilled in the art are it should be appreciated that embodiments of the invention can be provided as method, system or computer program Product.Therefore, the present invention can be using complete hardware embodiment, complete software embodiment or the reality combining software and hardware aspect Apply the form of example.And, the present invention can be using in one or more computers wherein including computer usable program code The upper computer program implemented of usable storage medium (including but not limited to disk memory, CD-ROM, optical memory etc.) produces The form of product.

The present invention is the flow process with reference to method according to embodiments of the present invention, equipment (system) and computer program Figure and/or block diagram are describing.It should be understood that can be by each stream in computer program instructions flowchart and/or block diagram Flow process in journey and/or square frame and flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided The processor instructing general purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device is to produce A raw machine is so that produced for reality by the instruction of computer or the computing device of other programmable data processing device The device of the function of specifying in present one flow process of flow chart or multiple flow process and/or one square frame of block diagram or multiple square frame.

These computer program instructions may be alternatively stored in and can guide computer or other programmable data processing device with spy Determine in the computer-readable memory that mode works so that the instruction generation inclusion being stored in this computer-readable memory refers to Make the manufacture of device, this command device realize in one flow process of flow chart or multiple flow process and/or one square frame of block diagram or The function of specifying in multiple square frames.

These computer program instructions also can be loaded in computer or other programmable data processing device so that counting On calculation machine or other programmable devices, execution series of operation steps to be to produce computer implemented process, thus in computer or On other programmable devices, the instruction of execution is provided for realizing in one flow process of flow chart or multiple flow process and/or block diagram one The step of the function of specifying in individual square frame or multiple square frame.

Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic creation Property concept, then can make other change and modification to these embodiments.So, claims are intended to be construed to including excellent Select embodiment and fall into being had altered and changing of the scope of the invention.

Obviously, those skilled in the art can carry out the various changes and modification essence without deviating from the present invention to the present invention God and scope.So, if these modifications of the present invention and modification belong to the scope of the claims in the present invention and its equivalent technologies Within, then the present invention is also intended to comprise these changes and modification.

Claims (23)

1. in a kind of access point handoff procedure the method for transmission data it is characterised in that the method includes:
User equipment determines to be needed, in the case that radio resource control RRC connection is constant, all or part of data wirelessly to be held Carry DRB to put another cell from a cell re-configuration;
Described user equipment in carrying out access point handoff procedure, by original Data Radio Bearer transmission data, wherein institute State the Data Radio Bearer that original Data Radio Bearer is by finally using before the access point switching of data surface;
If the Target cell in described access point handoff procedure belongs to home base stations, described user equipment carries out access point and switched Journey, including:
Described user equipment, while by original Data Radio Bearer transmission data, carries out descending same for Target cell Step operation;Or
If the cell-of-origin in described access point handoff procedure belongs to home base stations, Target cell belongs to macro base station, and described user sets Standby carry out access point handoff procedure, including:
Described user equipment, while by original Data Radio Bearer transmission data, generates and sends RRC and has reconfigured Become message.
2. the method for claim 1 is it is characterised in that described user equipment determines that needs connect constant feelings in RRC Under condition, all or part of DRB is put another cell from a cell re-configuration, including:
Described user equipment, according to the parameter receiving in the RRC reconfiguration message of cell-of-origin, determines and needs to connect in RRC In the case of constant, all or part of DRB is put another cell from a cell re-configuration.
3. the method for claim 1 is it is characterised in that described user equipment determines that needs connect constant feelings in RRC Under condition, by all or part of DRB after a cell re-configuration is put another cell, also include:
The new Data Radio Bearer of described user device configuration.
4. method as claimed in claim 3, it is characterised in that described user equipment carries out access point handoff procedure, also includes:
Described user equipment, after reconfiguring completion message to the cell-of-origin transmission RRC in described access point handoff procedure, is deleted Described original Data Radio Bearer;Or
Described user equipment sends RRC to the cell-of-origin in described access point handoff procedure and reconfigures completion message, and by new Data Radio Bearer receive data after, delete described original Data Radio Bearer;Or
Described user equipment sends RRC to the cell-of-origin in described access point handoff procedure and reconfigures after completion message, Jing Guoshe Timing is long to delete described original Data Radio Bearer.
If 5. the method for claim 1 is it is characterised in that the Target cell in described access point handoff procedure belongs to this Ground base station, described user equipment carries out access point handoff procedure, also includes:
If collocating uplink in RRC reconfiguration course, described user equipment is by original Data Radio Bearer transmission data Meanwhile, carry out uplink synchronous operation for Target cell.
If 6. the method for claim 1 is it is characterised in that the Target cell in described access point handoff procedure belongs to this Ground base station, described user equipment carries out access point handoff procedure, also includes:
Described user equipment, while by original Data Radio Bearer transmission data, is receiving from Target cell After random access channel responses Rach Response message, generate and send RRC and reconfigure completion message.
7. method as claimed in claim 3 is it is characterised in that the cell-of-origin in described access point handoff procedure belongs to this ground Stand, Target cell belongs to home base stations;
Described user equipment carries out access point handoff procedure, also includes:
Described user equipment feeds back or wireless spread-spectrum technology in the hybrid automatic repeat-request HARQ ACK receiving RRC completion message After RLC ACK feedback, by new Data Radio Bearer transmission data, stop at original Data Radio Bearer transmission number simultaneously According to.
8. in a kind of access point handoff procedure the method for transmission data it is characterised in that the method includes:
Macro base station determines that user equipment needs in the case that radio resource control RRC connection is constant, by all or part of data Radio bearer DRB puts another cell from a cell re-configuration;Wherein, the Target cell in access point handoff procedure belongs to Home base stations;Or the cell-of-origin in access point handoff procedure belongs to home base stations, Target cell belongs to macro base station;
Described macro base station sends RRC to described user equipment and connects reconfiguration message;
If the Target cell in described access point handoff procedure belongs to home base stations, it is used for notifying described user equipment to switch over Access point, and by original Data Radio Bearer transmission data in carrying out access point handoff procedure, wherein, described user sets For while by original Data Radio Bearer transmission data, carry out down-going synchronous operation for Target cell;Or
If the cell-of-origin in described access point handoff procedure belongs to home base stations, Target cell belongs to macro base station, for notifying State user equipment and switch over access point, and pass through original Data Radio Bearer in carrying out access point handoff procedure and transmit number According to wherein, described user equipment, while by original Data Radio Bearer transmission data, generates and sends RRC and joins again Put completion message;
Wherein, the data that described original Data Radio Bearer is by finally using before the access point switching of data surface is wireless Carry.
9. method as claimed in claim 8 is it is characterised in that the cell-of-origin in described access point handoff procedure belongs to described grand Base station, Target cell belongs to home base stations;
After described macro base station sends RRC connection reconfiguration message, also include:
Described macro base station, after receiving and reconfiguring completion message from the RRC of described user equipment, sends to described user equipment The correct ACK feedback of wireless spread-spectrum technology rlc layer, deletes described original Data Radio Bearer simultaneously, or stops by described Original Data Radio Bearer transmission data is simultaneously deleted after new Data Radio Bearer transmission data in described Target cell Described original Data Radio Bearer, or stop by described original Data Radio Bearer transmission data and when setting Delete described original Data Radio Bearer after length, and notify Target cell by new Data Radio Bearer transmission data;
Wherein, new Data Radio Bearer is by access point handoff procedure user device configuration.
10. method as claimed in claim 8 is it is characterised in that the cell-of-origin in described access point handoff procedure belongs to local Base station, Target cell belongs to home base stations;
After described macro base station sends RRC connection reconfiguration message, also include:
Described macro base station, by new Data Radio Bearer transmission data, notifies described cell-of-origin to delete described original number simultaneously According to radio bearer, or described cell-of-origin is notified to stop by described original Data Radio Bearer transmission data and in described target Cell deletes described original Data Radio Bearer after new Data Radio Bearer transmission data, or notifies described cell-of-origin Stop by described original Data Radio Bearer transmission data and deleting described original data no after setting duration Line carries, and notifies described Target cell by new Data Radio Bearer transmission data;
Wherein, new Data Radio Bearer is by access point handoff procedure user device configuration.
11. methods as claimed in claim 8 are it is characterised in that the cell-of-origin in described access point handoff procedure belongs to local Base station, Target cell belongs to described macro base station;
After described macro base station sends RRC connection reconfiguration message, also include:
Described macro base station, after receiving and reconfiguring completion message from the RRC of described user equipment, sends to described user equipment The ACK feedback of rlc layer, notifies described cell-of-origin to delete described original Data Radio Bearer simultaneously, or notifies described cell-of-origin Stop by described original Data Radio Bearer transmission data and pass through new Data Radio Bearer in described Target cell passing Delete described original Data Radio Bearer after transmission of data, or it is wireless by described original data to notify described cell-of-origin to stop Carry transmission data and deleting described original Data Radio Bearer after setting duration, and wirelessly held by new data Carry transmission data;
Wherein, new Data Radio Bearer is by access point handoff procedure user device configuration.
In a kind of 12. access point handoff procedures, the user equipment of transmission data is it is characterised in that this user equipment includes:
First processing module, needs in the case that radio resource control RRC connection is constant for determining, by all or part of number Put another cell from a cell re-configuration according to radio bearer DRB;
Transport module, for carrying out in access point handoff procedure, by original Data Radio Bearer transmission data, wherein institute State the Data Radio Bearer that original Data Radio Bearer is by finally using before the access point switching of data surface;
If the Target cell in described access point handoff procedure belongs to home base stations, described first processing module is additionally operable to:
While by original Data Radio Bearer transmission data, carry out down-going synchronous operation for Target cell;Or
If the cell-of-origin in described access point handoff procedure belongs to home base stations, Target cell belongs to macro base station, at described first Reason module is additionally operable to:
While by original Data Radio Bearer transmission data, generate and send RRC and reconfigure completion message.
13. user equipmenies as claimed in claim 12 it is characterised in that described first processing module specifically for:
According to the parameter receiving in the RRC reconfiguration message of cell-of-origin, determine and need to connect constant situation in RRC Under, all or part of DRB is put another cell from a cell re-configuration.
14. user equipmenies as claimed in claim 12 are it is characterised in that described first processing module is additionally operable to:
Determine and need, in the case that RRC connection is constant, all or part of DRB to be put another cell from a cell re-configuration After upper, configure new Data Radio Bearer.
15. user equipmenies as claimed in claim 14 are it is characterised in that described first processing module is additionally operable to:
After reconfiguring completion message to the cell-of-origin transmission RRC in described access point handoff procedure, delete described original number According to radio bearer;Or reconfigure completion message to the cell-of-origin transmission RRC in described access point handoff procedure, and by new number Receive after data according to radio bearer, delete described original Data Radio Bearer;Or in described access point handoff procedure After cell-of-origin transmission RRC reconfigures completion message, delete described original Data Radio Bearer through setting duration.
16. if user equipmenies as claimed in claim 12 are it is characterised in that Target cell in described access point handoff procedure Belong to home base stations, described first processing module is additionally operable to:
If collocating uplink in RRC reconfiguration course, while by original Data Radio Bearer transmission data, for target Cell carries out uplink synchronous operation.
17. if user equipmenies as claimed in claim 12 are it is characterised in that Target cell in described access point handoff procedure Belong to home base stations, described first processing module is additionally operable to:
While by original Data Radio Bearer transmission data, receiving the RACH from Target cell After response Rach Response message, generate and send RRC and reconfigure completion message.
18. user equipmenies as claimed in claim 14 are it is characterised in that the cell-of-origin in described access point handoff procedure belongs to Home base stations, Target cell belongs to home base stations;
Described first processing module is additionally operable to:
Feed back or wireless spread-spectrum technology RLC ACK feedback in the hybrid automatic repeat-request HARQ ACK receiving RRC completion message Afterwards, by new Data Radio Bearer transmission data, stop at original Data Radio Bearer transmission data simultaneously.
In a kind of 19. access point handoff procedures, the base station of transmission data is it is characterised in that this base station includes:
Second processing module, for determining that user equipment needs, will be all in the case that radio resource control RRC connection is constant Or partial data radio bearer DRB puts another cell from a cell re-configuration;Wherein, the mesh in access point handoff procedure Mark cell belongs to home base stations;Or the cell-of-origin in access point handoff procedure belongs to home base stations, Target cell belongs to macro base station;
Notification module, connects reconfiguration message for sending RRC to described user equipment;If in described access point handoff procedure Target cell belongs to home base stations, is used for notifying described user equipment to switch over access point, and switched carrying out access point By original Data Radio Bearer transmission data in journey, wherein, described user equipment is by original Data Radio Bearer While transmission data, carry out down-going synchronous operation for Target cell;If or, the cell-of-origin in described access point handoff procedure Belong to home base stations, Target cell belongs to macro base station, be used for notifying described user equipment to switch over access point, and connect By original Data Radio Bearer transmission data in access point handoff procedure, wherein, described user equipment is by original number While according to radio bearer transmissions data, generate and send RRC and reconfigure completion message;
Wherein, the data that described original Data Radio Bearer is by finally using before the access point switching of data surface is wireless Carry.
20. base stations as claimed in claim 19 are it is characterised in that the cell-of-origin in described access point handoff procedure belongs to grand base Stand, Target cell belongs to home base stations;
Described Second processing module is additionally operable to:
After receiving and reconfiguring completion message from the RRC of described user equipment, send the ACK of rlc layer to described user equipment Feedback, deletes described original Data Radio Bearer simultaneously, or stops by described original Data Radio Bearer transmission data And delete described original Data Radio Bearer in described Target cell after new Data Radio Bearer transmission data, or stop Only by described original Data Radio Bearer transmission data and wireless deleting described original data after setting duration Carry, and notify Target cell by new Data Radio Bearer transmission data;
Wherein, new Data Radio Bearer is by access point handoff procedure user device configuration.
21. base stations as claimed in claim 19 are it is characterised in that the cell-of-origin in described access point handoff procedure belongs to local Base station, Target cell belongs to home base stations;
Described Second processing module is additionally operable to:
By new Data Radio Bearer transmission data, notify described cell-of-origin to delete described original data simultaneously and wirelessly hold Carry, or notify described cell-of-origin to stop passing through by described original Data Radio Bearer transmission data and in described Target cell Delete described original Data Radio Bearer after new Data Radio Bearer transmission data, or notify described cell-of-origin to stop passing through Described original Data Radio Bearer transmission data and through setting duration after delete described original Data Radio Bearer, and Notify described Target cell by new Data Radio Bearer transmission data;
Wherein, new Data Radio Bearer is by access point handoff procedure user device configuration.
22. base stations as claimed in claim 19 are it is characterised in that the cell-of-origin in described access point handoff procedure belongs to local Base station, Target cell belongs to macro base station;
Described Second processing module is additionally operable to:
After receiving and reconfiguring completion message from the RRC of described user equipment, send the ACK of rlc layer to described user equipment Feedback, notifies described cell-of-origin to delete described original Data Radio Bearer simultaneously, or notifies described cell-of-origin to stop passing through institute State original Data Radio Bearer transmission data and deleted after new Data Radio Bearer transmission data in described Target cell Except described original Data Radio Bearer, or described cell-of-origin is notified to stop transmitting number by described original Data Radio Bearer According to and deleting described original Data Radio Bearer after setting duration, and number is transmitted by new Data Radio Bearer According to;
Wherein, new Data Radio Bearer is by access point handoff procedure user device configuration.
In a kind of 23. access point handoff procedures, the system of transmission data is it is characterised in that this system includes:
Macro base station, for determining that user equipment needs, will be all or part of in the case that radio resource control RRC connection is constant Data Radio Bearer DRB puts another cell from a cell re-configuration, sends RRC connection to described user equipment and reconfigures Message, is used for notifying described user equipment to switch over access point, and passes through original number in carrying out access point handoff procedure According to radio bearer transmissions data;
User equipment, needs in the case that radio resource control RRC connection is constant for determining, by all or part of data no Line carries DRB after a cell re-configuration is put another cell, in carrying out access point handoff procedure, by original number According to radio bearer transmissions data, last before the access point switching that wherein said original Data Radio Bearer is by data surface The Data Radio Bearer using;
If the Target cell in described access point handoff procedure belongs to home base stations, described user equipment is additionally operable to:
While by original Data Radio Bearer transmission data, carry out down-going synchronous operation for Target cell;Or
If the cell-of-origin in described access point handoff procedure belongs to home base stations, Target cell belongs to macro base station, and described user sets Standby it is additionally operable to:
While by original Data Radio Bearer transmission data, generate and send RRC and reconfigure completion message.
CN201210224338.6A 2012-06-28 2012-06-28 Method, system and device for transmitting data in process of switching access points CN103517358B (en)

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