CN103945470A - Switching method, source communication node and target communication node - Google Patents

Switching method, source communication node and target communication node Download PDF

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Publication number
CN103945470A
CN103945470A CN201310018582.1A CN201310018582A CN103945470A CN 103945470 A CN103945470 A CN 103945470A CN 201310018582 A CN201310018582 A CN 201310018582A CN 103945470 A CN103945470 A CN 103945470A
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China
Prior art keywords
communication node
information
handover request
target
source
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CN201310018582.1A
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Chinese (zh)
Inventor
时洁
柴丽
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN201310018582.1A priority Critical patent/CN103945470A/en
Priority to PCT/CN2013/089108 priority patent/WO2014110951A1/en
Publication of CN103945470A publication Critical patent/CN103945470A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0064—Transmission or use of information for re-establishing the radio link of control information between different access points
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the invention relates to a switching method, a source communication node and a target communication node. The switching method includes the steps that the source communication node sends switching requesting information carrying user equipment identification information to the target communication node, and the target communication node comprises a main target communication node and/or an auxiliary target communication node; switching requesting acknowledgment information sent by the main target communication node or the auxiliary target communication node is received, or switching requesting acknowledgment information obtained through information interaction, responding to the switching requesting information, of the main target communication node and the auxiliary target communication node is received; according to the switching request acknowledgment information, data streams which correspond to user equipment and are borne by the source communication node are switched to be borne by the target communication node. The communication nodes on the source side and the target side can be switched in parallel, the GTP information for setting up data forwarding only needs to be directly sent between the communication nodes on the source side and the target side instead of being forwarded, and therefore the signaling overhead is saved.

Description

Changing method, sources traffic node and destination communication node
Technical field
The present invention relates to communication technical field, relate in particular to a kind of changing method, sources traffic node and destination communication node.
Background technology
Along with 3G (Third Generation) Moblie technology (3rd-generation, 3G) network and Long Term Evolution (Long Term Evolution, LTE) fast development, the business of the large bandwidth of two-forty is just bringing the colourful application of people and is experiencing.Especially recently the extensive growth of smart mobile phone, in having injected new vitality to communication, has also brought more challenge to operation.Particularly, along with the progressively increase of application service, the demand of the capacity to network also increases, and in order further to strengthen the capacity of network, the network architecture is from homogeneous network to heterogeneous network evolution.In heterogeneous network, can adopt data distribution mode is that subscriber equipment (User Equipment, UE) provides service, and when communicate by letter with UE in multiple base stations, different base station is born the data flow that UE is different.Such as, Data Radio Bearer (DRB Data RadioBear, DRB) is responsible in a part of base station, and Signaling Radio Bearer (Signaling Radio Bear, SRB) is responsible in a part of base station.
In prior art, in the time that user moves to another eNB community from the community of an evolved communication node (evolved Node B, eNB), can there is a series of Signalling exchange by X2 interface and coordinate handover success to complete in two eNB.Its handoff procedure is as follows: source eNB is to the target eNB request of switching, in this request, comprising suggestion target eNB sets up a conventional data transmission platform (General DataTransfer Platform, GTP) tunnel and realizes downlink data and forward and the GTP tunnel end points of forwarded upstream.If target eNB is agreed to, in switching request acknowledgement message, indicate the endpoint of a tunnel of expecting to receive forwarding data.Source eNB receives after this handover acknowledge message, starts the GTP tunnel end points to target side appointment the data retransmission recently arriving by X2 path, and completes the switching in core net downlink data path.Wherein, returning in switching request acknowledgement message process in source eNB initiation handover request and target eNB, is single for the GTP tunnel of data retransmission.
But, in heterogeneous network, under a macro base station, being often coated with multiple access points, these access nodes can be little base stations, indoor base station, Hypomobility base station, local wireless access point, low power transmissions node.Under this network, UE can communicate with multiple base stations of target side.In the time that UE Cong Yige community moves to another community, while switching, source will have been assisted switching by a dominant base or main plot, other base stations of source or community in the time switching, stop providing service to UE, can produce to a certain extent like this expense that unnecessary signaling or signaling forward.
Summary of the invention
The invention provides a kind of changing method, sources traffic node and destination communication node, return in switching request acknowledgement message process with source eNB initiation handover request and target eNB in solution prior art, GTP tunnel for data retransmission is single, and produce to a certain extent the problem of the expense that unnecessary signaling or signaling forward, the switching that can walk abreast of the communication node of having realized source and target side, and the GTP information of setting up data retransmission only need to directly send between source and the communication node of target side, and do not need to forward, thereby save the expense of signaling.
In first aspect, the invention provides a kind of changing method, described method comprises: sources traffic node sends the handover request information that carries customer equipment identification information to destination communication node, described destination communication node comprises the main communication node of target, and/or target is from communication node; Receive the Handover Request Acknowledge information that the main communication node of described target or target send in response to described handover request information from communication node, or receive the main communication node of described target and described target carries out in response to described handover request information the Handover Request Acknowledge information that information interaction obtains from communication node; According to described Handover Request Acknowledge information, the data flow corresponding with described subscriber equipment of described sources traffic node carrying is switched to by described destination communication node and carried.
In the possible implementation of the first, described sources traffic node comprises that the main communication node in source and/or source are from communication node.
In conjunction with the possible implementation of the first of first aspect or first aspect, in the possible implementation of the second, in described handover request information, entrained information specifically comprises: the main communication node in described source and/or source be from the described customer equipment identification information of communication node, and the main communication node of described target and/or described target are from the target cell information of communication node.
In conjunction with the possible implementation of the second of first aspect, in the third possible implementation, described handover request information comprises one-level handover request information or secondary handover request information, the handover request information that described sources traffic node carries customer equipment identification information to destination communication node transmission at least comprises following a kind of send mode: the described one-level handover request information that the main communication node in described source sends to the main communication node of described target, the described secondary handover request information that the main communication node in described source sends to the main communication node of described target, the described secondary handover request information that the main communication node in described source sends to described target from communication node, the described secondary handover request information that the described secondary handover request information that described source sends to the main communication node of described target from communication node and described source send to described target from communication node from communication node.
In second aspect, the invention provides a kind of changing method, described method comprises: the handover request information of the customer equipment identification information that carries that destination communication node reception sources communication node sends, and described sources traffic node comprises the main communication node in source, and/or source is from communication node; Send described Handover Request Acknowledge information in response to described handover request information to described sources traffic node, the data flow corresponding with described subscriber equipment of described sources traffic node carrying is switched to by described destination communication node and carried according to described Handover Request Acknowledge information in order to described sources traffic node.
In the possible implementation of the first, described destination communication node comprises that the main communication node of target and/or target are from communication node; And, describedly send described Handover Request Acknowledge information to described sources traffic node and specifically comprise: the main communication node of described target or described target send described Handover Request Acknowledge information in response to described handover request information to described sources traffic node from communication node, or the main communication node of described target and described target are carried out information interaction from communication node in response to described handover request information, thereby obtain Handover Request Acknowledge information, and send described Handover Request Acknowledge information to described sources traffic node.
In conjunction with the possible implementation of the first of second aspect, in the possible implementation of the second, the main communication node of described target and described target are carried out information interaction from communication node in response to described handover request information, thereby obtaining Handover Request Acknowledge information specifically comprises: when the main communication node of described target receives described handover request information, according to described handover request information, the described data flow of described sources traffic node carrying is distributed between communication node at the main communication node of described target and described target; Notify described target to accept from communication node the data flow that described target is assigned with from communication node, the data flow of described target from being assigned with described in communication node acceptance or refusal; Or, from communication node, sending to the target of described appointment the information of accepting the data flow of specifying from communication node according to the target of specifying in described handover request information, described appointed data flow is accepted or refused to the target of described appointment from communication node.
In conjunction with the possible implementation of the first of second aspect, in the third possible implementation, the main communication node of described target and described target are carried out information interaction from communication node in response to described handover request information, thereby obtaining Handover Request Acknowledge information specifically comprises: when described target receives from communication node described handover request information, send confirmation to the main communication node of described target, in order to inform that the main communication node of described target knows that according to confirmation described target accepted or refused described handover request information from communication node.
In conjunction with the possible implementation of the first of second aspect, in the 4th kind of possible implementation, the main communication node of described target and described target are carried out information interaction from communication node in response to described handover request information, thereby obtaining Handover Request Acknowledge information specifically comprises: when described target receives from communication node described handover request information, send the confirmation of carrying described handover request information to the main communication node of described target.
In the third aspect, the invention provides a kind of sources traffic node, described node comprises: transmitter, for send the handover request information that carries customer equipment identification information to destination communication node, described destination communication node comprises the main communication node of target, and/or target is from communication node; Receiver, the Handover Request Acknowledge information sending in response to described handover request information from communication node for receiving the main communication node of described target or target, or receive the main communication node of described target and described target and carry out in response to described handover request information the Handover Request Acknowledge information that information interaction obtains from communication node, and by described Handover Request Acknowledge communication to processor; Processor, for receive described Handover Request Acknowledge information from described processor, is switched to the data flow corresponding with described subscriber equipment of described sources traffic node carrying by described destination communication node and carries according to described Handover Request Acknowledge information.
In the possible implementation of the first, described sources traffic node comprises that the main communication node in source and source are from communication node, in described handover request information, entrained information specifically comprises: the main communication node in described source and/or source be from the described customer equipment identification information of communication node, and the main communication node of described target and/or described target are from the target cell information of communication node.
In conjunction with the possible implementation of the first of the third aspect, in the possible implementation of the second, state handover request information and comprise one-level handover request information or secondary handover request information, described transmitter is at least for following a kind of send mode: the described one-level handover request information that the main communication node in described source sends to the main communication node of described target, the described secondary handover request information that the main communication node in described source sends to the main communication node of described target, the described secondary handover request information that the main communication node in described source sends to described target from communication node, the described secondary handover request information that the described secondary handover request information that described source sends to the main communication node of described target from communication node and described source send to described target from communication node from communication node.
In fourth aspect, the invention provides a kind of destination communication node, described node comprises: receiver, the handover request information of the customer equipment identification information that carries sending for destination communication node reception sources communication node, described sources traffic node comprises the main communication node in source, and/or source is from communication node, and by described handover request communication to processor; Transmitter, for receiving described Handover Request Acknowledge information from described processor, send described Handover Request Acknowledge information in response to described handover request information to described sources traffic node, the data flow corresponding with described subscriber equipment of described sources traffic node carrying is switched to by described destination communication node and carried according to described Handover Request Acknowledge information in order to described sources traffic node.
In the possible implementation of the first, described destination communication node comprises that the main communication node of target and target are from communication node; And, described transmitter sends described Handover Request Acknowledge information to described sources traffic node and specifically comprises specifically for described: the main communication node of described target or described target send described Handover Request Acknowledge information in response to described handover request information to described sources traffic node from communication node, or the main communication node of described target and described target are carried out information interaction from communication node in response to described handover request information, thereby obtain Handover Request Acknowledge information, and send described Handover Request Acknowledge information to described sources traffic node.
In conjunction with the possible implementation of the first of fourth aspect, in the possible implementation of the second, described node also comprises: first information interactive unit, for receiving described handover request information when the main communication node of described target, according to described handover request information, the described data flow of described sources traffic node carrying is distributed between communication node at the main communication node of described target and described target; Notify described target to accept from communication node the data flow that described target is assigned with from communication node, the data flow of described target from being assigned with described in communication node acceptance or refusal; Or, from communication node, sending to the target of described appointment the information of accepting the data flow of specifying from communication node according to the target of specifying in described handover request information, described appointed data flow is accepted or refused to the target of described appointment from communication node.
In conjunction with the possible implementation of the first of fourth aspect, in the third possible implementation, described node also comprises: the second information interaction unit, for receiving from communication node described handover request information when described target, send confirmation to the main communication node of described target, in order to inform that the main communication node of described target knows that according to confirmation described target accepted or refused described handover request information from communication node.
In conjunction with the possible implementation of the first of fourth aspect, in the 4th kind of possible implementation, described node also comprises: the 3rd information interaction unit, for receiving from communication node described handover request information when described target, send the confirmation of carrying described handover request information to the main communication node of described target.
By applying changing method provided by the invention, sources traffic node and destination communication node, sources traffic node sends the handover request information that carries user totem information to destination communication node, destination communication node comprises the main communication node of target, and/or target is from communication node; The Handover Request Acknowledge information that the main communication node of receiving target or target send from communication node, or the main communication node of receiving target and target are carried out the Handover Request Acknowledge information obtaining information interaction according to handover request information from communication node; According to Handover Request Acknowledge information, the data flow corresponding with user of sources traffic node carrying is switched to by destination communication node and carried, the switching that can walk abreast of the communication node of having realized source and target side, and the GTP information of setting up data retransmission only need to directly send between source and the communication node of target side, and do not need forwarding, thereby save the expense of signaling.
Brief description of the drawings
The flow chart of the changing method that Fig. 1 provides for the embodiment of the present invention one;
The flow chart of the changing method that Fig. 2 provides for the embodiment of the present invention two;
The information interaction figure of the changing method that Fig. 3 provides for the embodiment of the present invention three;
The information interaction figure of the changing method that Fig. 4 provides for the embodiment of the present invention four;
The schematic diagram of the sources traffic node that Fig. 5 provides for the embodiment of the present invention five;
The schematic diagram of the destination communication node that Fig. 6 provides for the embodiment of the present invention six.
Embodiment
For making object, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Changing method, sources traffic node and destination communication node that the embodiment of the present invention provides, sources traffic node sends the handover request information that carries user totem information to destination communication node, destination communication node comprises the main communication node of target, and/or target is from communication node; The Handover Request Acknowledge information that the main communication node of receiving target or target send from communication node, or the main communication node of receiving target and target are carried out the Handover Request Acknowledge information obtaining information interaction according to handover request information from communication node; According to Handover Request Acknowledge information, the data flow corresponding with user of sources traffic node carrying is switched to by destination communication node and carried, wherein, sources traffic node comprises the main communication node in source, and/or source is from communication node, the switching that can walk abreast of the communication node of having realized source and target side, and the GTP information of setting up data retransmission only need to directly send between source and the communication node of target side, and does not need to forward, thereby save the expense of signaling.
It is worthy of note, in all embodiment of the present invention, source refers to sources traffic node, comprising: the main communication node in source, and/or source is from communication node.In addition, target side refers to destination communication node, comprising: the main communication node of target, and/or target is from communication node.
The flow chart of the changing method that Fig. 1 provides for the embodiment of the present invention one.As shown in the figure, the present embodiment specifically comprises the following steps:
Step 110, sources traffic node sends the handover request information that carries customer equipment identification information to destination communication node.This destination communication node comprises the main communication node of target, or comprises that target is from communication node, or comprises that the main communication node of target and target are from communication node.
Further, the sources traffic node in this step 110 comprises the main communication node in source, or comprises that source is from communication node, or comprises that the main communication node in source and source are from communication node.Sources traffic node sends while carrying the handover request information of customer equipment identification information and may occur three kinds of situations to destination communication node: the main communication node in (1) source, send the handover request information that carries customer equipment identification information to destination communication node; (2) source sends the handover request information that carries customer equipment identification information from communication node to destination communication node; (3) the main communication node in source and source send the handover request information that carries customer equipment identification information from communication node to destination communication node.Wherein, information entrained in handover request information specifically comprises: the main communication node in source and/or source be from the user equipment information of communication node, and the main communication node of target and/or target are from the target cell information of communication node.
Further particularly, handover request information comprises one-level handover request information or secondary handover request information.One-level is only that it does not have special implication in order to distinguish different nouns from secondary.The main communication node in source and/or source send the handover request information that carries customer equipment identification information and at least comprise following a kind of send mode from communication node to destination communication node:
(1) the one-level handover request information that the main communication node in source sends to the main communication node of target;
(2) the secondary handover request information that the main communication node in source sends to the main communication node of target;
(3) the secondary handover request information that the main communication node in source sends to target from communication node;
(4) the secondary handover request information that source sends to the main communication node of target from communication node;
(5) the secondary handover request information that source sends from communication node from communication node to target.
Can be found out by above-mentioned send mode, the main communication node in source can send one-level handover request information or secondary handover request information, and source can only send secondary handover request information from communication node.
Describe the particular content of one-level handover request information and secondary handover request information below in detail.
(1) one-level handover request information is used to indicate radio resource control (Radio ResourceControl, RRC), Signaling Radio Bearer SRB, PDCP (Packet DataConvergence Protocol, PDCP) streamed data, wireless link control (Raido Link Control, RLC) streamed data, one or more switching in media access control (Medium Access Control, MAC) streamed data and chain of command.
Described one-level handover request also can be further used in designation data radio bearer (Data RadioBear, DRB) and user's face one or more switching.
Subscriber equipment can have multiple Signaling Radio Bearers and Data Radio Bearer, and the switching of described Signaling Radio Bearer SRB or Data Radio Bearer DRB can be the switching of Signaling Radio Bearer or the Data Radio Bearer of specified type.
Particularly, one-level handover request information at least comprises following a kind of information: the main communication node of source and customer equipment identification information or source from communication node wish that target side provides communication node information or the communication node cell information of information service, or comprises with source and wish that target side provides the E-RAB information of the communication node information of information service or carrying corresponding to communication node cell information.Wherein, the identification information of UE at least comprises following a kind of information: the X2APID of UE, or the mark of UE interface between communication node, or the cell-radio network of UE temporarily identifies (Cell Radio-NetworkTemporary Identifier, C-RNTI) mark, or UE is in the mark of CN, or UE is at radio resource control (Radio Resource Control, RRC), Signaling Radio Bearer SRB, PDCP streamed data, RLC streamed data, a kind of or combination in the mark in MAC streamed data and chain of command.Wherein, X2APID is the unique identification of UE on eNB side X2 interface.
One-level handover request information can further include the contextual information of subscriber equipment.Contextual information comprises the S1APID of subscriber equipment at MME, the security information of subscriber equipment, the E-RAB information of subscriber equipment, E-RAB information comprises E-RAB id information, cell information, DL data retransmission and UL GTP Tunnel Endpoint information under E-RAB.
In addition, source wishes that target side provides the communication node information of information service or communication node cell information at least to comprise following a kind of information: the main communication node information of target, target is from communication node information, the cell information of the main letter node of target, target is from the cell information of communication node, or comprises the E-RAB information of the carrying corresponding with these communication node information.The nodal information here comprises the identification information of node, and cell information comprises the identification information of community, as PCI, and ECGI, cell cluster identification information etc.
(2) secondary handover request information is used to indicate in lower floor's packet of Data Radio Bearer DRB, DRB and user's face one or more switching.
The switching of the lower floor's packet of the DRB in secondary handover request information, can further comprise the PDCP streamed data bag of DRB, the RLC streamed data bag of DRB, the switching of the MAC streamed data bag of DRB.Particularly, secondary handover request information at least comprises following a kind of information: the customer equipment identification information of source communication node, the contextual information of subscriber equipment, the information of the main communication node in source and/or the main communication node of target, or comprise the cell information of the main communication node in source and/or the main communication node of target.
Customer equipment identification information in secondary handover request information at least comprises following a kind of information: the X2APID of UE, or the mark of UE interface between communication node, or the cell-radio network of UE temporarily identifies (Cell Radio-Network Temporary Identifier, C-RNTI) mark, or UE is in the mark of CN, or a kind of or combination in the mark of UE in Data Radio Bearer DRB, DRB lower floor packet and user's face.Wherein, the mark of UE in DRB lower floor packet further comprises that UE is at the PDCP of DRB streamed data bag, the RLC streamed data bag of DRB, the mark in the MAC streamed data bag of DRB.Wherein, X2APID is the unique identification of UE on eNB side X2 interface.
The information of the communication node in secondary handover request information comprises the identification information of node, and cell information comprises the identification information of community, as PCI, and ECGI, cell cluster identification information etc.
The contextual information of the subscriber equipment in secondary handover request information, comprise the S1APID of subscriber equipment at MME, the security information of subscriber equipment, subscriber equipment E-RAB information, E-RAB information comprises E-RABID information, cell information, DL data retransmission and up GTP pipeline terminal point information under E-RAB.Wherein, GTP is the abbreviation of GPRS Tunnelling Protocol, Chinese: GPRS pipe protocol.GPRS is the abbreviation of General Packet Radio Service, Chinese: GPRS.
(3) one-level handover request message is carried the partial information of secondary handover request, it comprises the identification information of the communication node of secondary handover request, initiate the cell identity information of the communication node of secondary handover request, initiate the customer equipment identification information of the communication node of secondary handover request, E-RABID information, one or more combination in the information of the Target cell of the information of the destination communication node that E-RABID is corresponding, destination communication node that E-RABID is corresponding.
Step 120, the Handover Request Acknowledge information that the main communication node of sources traffic node receiving target or target send in response to handover request information from communication node, or the main communication node of receiving target and target carry out in response to handover request information the Handover Request Acknowledge information that information interaction obtains from communication node.
Further, the sources traffic node in this step 120 comprises that the main communication node in source and/or source are from communication node; Handover Request Acknowledge information comprises one-level Handover Request Acknowledge information or secondary Handover Request Acknowledge information.In the time that sources traffic node receives one-level Handover Request Acknowledge information or secondary Handover Request Acknowledge information, there will be following at least one receive mode:
(1) the main communication node in source receives one-level Handover Request Acknowledge information;
(2) the main communication node in source receives secondary Handover Request Acknowledge information;
(3) source receives described secondary Handover Request Acknowledge information from communication node.
Illustrate sources traffic node in step 110 sends destination communication node in handover request message and step 120 and feed back to process from sources traffic node Handover Request Acknowledge information to destination communication node below, it at least comprises following a kind of process.
(1) if the main communication node in source sends one-level handover request information to the main communication node of target, the one-level Handover Request Acknowledge information that the main communication node of the main communication node receiving target in source sends;
(2) if the main communication node in source sends secondary handover request information to the main communication node of target, the secondary Handover Request Acknowledge information that the main communication node of the main communication node receiving target in source sends;
(3) if the main communication node in source sends secondary handover request information to target from communication node, the secondary Handover Request Acknowledge information that the main communication node receiving target in source sends from communication node;
(4) if source sends secondary handover request information from communication node to the main communication node of target, the secondary Handover Request Acknowledge information that source sends from the main communication node of communication node receiving target;
(5) if source sends secondary handover request information, the secondary Handover Request Acknowledge information that source sends from communication node receiving target from communication node from communication node to target from communication node;
(6) if source sends secondary handover request information, the secondary Handover Request Acknowledge information that the main communication node receiving target in source sends from communication node from communication node to target from communication node.
Step 130, sources traffic node is switched to the data flow corresponding with subscriber equipment of sources traffic node carrying by destination communication node and carries according to Handover Request Acknowledge information.
Further, in this step 130, hold consultation according to Handover Request Acknowledge information from communication node in the main communication node in source and source, thereby main source communication node and/or source are switched to by destination communication node and are carried from the data flow corresponding with subscriber equipment of communication node carrying.
In addition, before step 110, also comprise: information interaction is carried out from communication node in the main communication node in source and source, thereby at least determine following a kind of information:
(1) determine the originating end of handover request information, this originating end comprises that the main communication node in source and/or source are from communication node;
(2) determine the receiving terminal of handover request information, this receiving terminal comprises that the main communication node of target and/or target are from communication node;
(3) determine the type of handover request information;
(4) determine information entrained in handover request information; Wherein, handover request information comprises one-level handover request information or secondary handover request information.
Therefore, the changing method that the embodiment of the present invention provides, sources traffic node sends the handover request information that carries customer equipment identification information to destination communication node, and destination communication node comprises the main communication node of target, and/or target is from communication node; The Handover Request Acknowledge information that the main communication node of receiving target or target send from communication node, or the main communication node of receiving target and target are carried out the Handover Request Acknowledge information obtaining information interaction according to handover request information from communication node; According to Handover Request Acknowledge information, the data flow corresponding with subscriber equipment of sources traffic node carrying is switched to by destination communication node and carried, wherein, sources traffic node comprises the main communication node in source, and/or source is from communication node, the switching that can walk abreast of the communication node of having realized source and target side, and the GTP information of setting up data retransmission only need to directly send between source and the communication node of target side, and does not need to forward, thereby save the expense of signaling.
The flow chart of the changing method that Fig. 2 provides for the embodiment of the present invention two.As shown in the figure, the present embodiment specifically comprises the following steps:
Step 210, the handover request information of the customer equipment identification information that carries that destination communication node reception sources communication node sends.Wherein, sources traffic node comprises the main communication node in source, and/or source is from communication node.
Further, handover request information comprises one-level handover request information and secondary handover request information.Step 210 at least comprises following a kind of receive mode:
(1) the main communication node of the main communication node reception sources of target is to the one-level handover request information sending.
(2) the secondary handover request information that the main communication node of the main communication node reception sources of target sends.
(3) the secondary handover request information that target sends from the main communication node of communication node reception sources.
(4) the secondary handover request information that the main communication node reception sources of target sends from communication node.
(5) the secondary handover request information that target sends from communication node reception sources from communication node.
Step 220, destination communication node sends Handover Request Acknowledge information in response to handover request information to sources traffic node, the data flow corresponding with subscriber equipment of sources traffic node carrying is switched to by destination communication node and is carried according to Handover Request Acknowledge information in order to sources traffic node.
Further, in this step 210, destination communication node comprises that the main communication node of target and/or target are from communication node.Step 210 is specially the main communication node of target, and/or target is from the handover request information of the customer equipment identification information that carries of communication node reception sources communication node transmission; Step 220 is specially the main communication node of target or target and sends Handover Request Acknowledge information in response to handover request information to sources traffic node from communication node, or the main communication node of target and target are carried out the Handover Request Acknowledge information obtaining information interaction and send Handover Request Acknowledge information to sources traffic node in response to handover request information from communication node.
Illustrate the main communication node of target and target below and carry out the mode of information interaction from communication node in response to handover request information:
The first interactive mode:
(1) when the main communication node of target receives handover request information, according to handover request information by the data flow of sources traffic node carrying at the main communication node of target with distribute between communication node;
(2) notification target accepts from communication node the data flow that target is assigned with from communication node, and target accepts or refuse from communication node the data flow being assigned with.Wherein, target specifically comprises from the data flow being assigned with described in communication node acceptance or refusal: target is accepted the data flow being assigned with from communication node, and sends and confirm to receive information to the main communication node of target; Or target is refused the data flow being assigned with from communication node, and the refusal that carries reason for rejection to the main communication node transmission of target is received information.
Or, from communication node, sending the information of accepting the data flow of specifying according to the target of specifying in handover request information to the target of specifying from communication node, appointed data flow is accepted or refused to the target of appointment from communication node.Wherein, the target of appointment is accepted or refuses described appointed data flow specifically to comprise from communication node: the target of appointment is accepted appointed data flow from communication node, and sends and confirm to receive information to the main communication node of target; Or the target of specifying refuses appointed data flow from communication node, and send to the main communication node of target the refusal that carries reason for rejection and receive information.
The second interactive mode:
(1), when target receives from communication node handover request information, send confirmation to the main communication node of target, in order to inform that the main communication node of target knows that according to confirmation target accepted or refused handover request information from communication node.
At another embodiment, (1) also comprises the confirmation that the main communication node wait of target receiving target sends from communication node before.
The third interactive mode:
(1), when target receives from communication node handover request information, send the confirmation of carrying handover request information to the main communication node of target.
(2) feedback information that the main communication node of receiving target sends, knows that from communication node the main communication node of target agrees to that target accepts handover request information or disagree with that target accepts handover request information from communication node from communication node in order to target.
In above-mentioned three kinds of interactive modes, handover request information comprises one-level handover request information or secondary handover request information; Handover Request Acknowledge information comprises one-level Handover Request Acknowledge information or secondary Handover Request Acknowledge information.In step 220, destination communication node specifically comprises to sources traffic node transmission Handover Request Acknowledge information: the main communication node of target sends one-level Handover Request Acknowledge information and/or secondary Handover Request Acknowledge information; Target sends secondary Handover Request Acknowledge information from communication node.
Wherein, one-level Handover Request Acknowledge information comprises for radio resource control rrc layer, Signaling Radio Bearer SRB, chain of command, PDCP shunting, RLC shunting, one or more Handover Request Acknowledge information in one or more Handover Request Acknowledge information in MAC shunting;
Described one-level Handover Request Acknowledge information at least comprises following a kind of information: the destination communication node identification information that the customer equipment identification information of destination communication node based on sources traffic node provides, the customer equipment identification information that the customer equipment identification information of destination communication node based on sources traffic node provides, the corresponding relation of the customer equipment identification information of sources traffic node and the customer equipment identification information of destination communication node, the E-RAB list information of the access under the customer equipment identification information corresponding relation of the customer equipment identification information of sources traffic node and destination communication node.
Here, the corresponding relation of the customer equipment identification information of sources traffic node and the customer equipment identification information of destination communication node, this corresponding relation is corresponding or one-to-many correspondence or many-one correspondence or multi-to-multi correspondence one by one, and the present invention does not here limit.
Customer equipment identification information in one-level Handover Request Acknowledge information at least comprises following a kind of information: the X2APID of UE, or the mark of UE interface between communication node, or the cell-radio network of UE temporarily identifies (Cell Radio-Network Temporary Identifier, C-RNTI) mark, or UE is in the mark of CN, or UE is at radio resource control (the RadioResource Control of Correspond Node, RRC) layer, Signaling Radio Bearer (Signaling Radio Bear, SRB), PDCP streamed data, RLC streamed data, a kind of or combination in mark in MAC streamed data and chain of command.Wherein, X2APID is the unique identification of UE on eNB side X2 interface.
The E-RAB list information that destination communication node in one-level Handover Request Acknowledge information receives comprises up GTP pipeline terminal point information and/or descending GTP pipeline terminal point information.
Secondary Handover Request Acknowledge information at least comprises following a kind of information, send the destination communication node customer equipment identification information corresponding with subscriber equipment of this secondary Handover Request Acknowledge information, and the E-RAB list information of this destination communication node reception, wherein, the E-RAB list information that destination communication node receives comprises up GTP pipeline terminal point information and/or descending GTP pipeline terminal point information.
Illustrate destination communication node in the handover request information of the customer equipment identification information that carries that destination communication node reception sources communication node in step 210 sends and step 220 sends process from Handover Request Acknowledge information to sources traffic node below, it at least comprises following a kind of process.
(1) if the one-level handover request information that the main communication node of the main communication node reception sources of target sends sends one-level Handover Request Acknowledge information to sources traffic node;
(2) if the secondary handover request information that the main communication node of the main communication node reception sources of target sends sends secondary Handover Request Acknowledge information to sources traffic node;
(3) if the secondary handover request information that the main communication node reception sources of target sends from communication node sends secondary Handover Request Acknowledge information to source from communication node;
(4) if the secondary handover request information that target sends from the main communication node of communication node reception sources, to source, main communication node sends secondary Handover Request Acknowledge information;
(5) if the secondary handover request information that target sends from communication node reception sources from communication node, to source, main communication node sends secondary Handover Request Acknowledge information;
(6) if the secondary handover request information that target sends from communication node reception sources from communication node sends secondary Handover Request Acknowledge information to source from communication node.
Therefore, the changing method that the embodiment of the present invention provides, the handover request information of the customer equipment identification information that carries that destination communication node reception sources communication node sends, sources traffic node comprises the main communication node in source, and/or source is from communication node; Send Handover Request Acknowledge information to sources traffic node, the data flow corresponding with subscriber equipment of sources traffic node carrying is switched to by destination communication node and carried according to Handover Request Acknowledge information in order to sources traffic node, wherein, destination communication node comprises the main communication node of target, and/or target is from communication node, the switching that can walk abreast of the communication node of having realized source and target side, and the GTP information of setting up data retransmission only need to directly send between source and the communication node of target side, and do not need forwarding, thereby save the expense of signaling.
In the changing method that the changing method that the invention described above embodiment mono-provides and the embodiment of the present invention two provide, communication node can be the community of base station or base station.Main communication node can be the community of macro base station or macro base station, or is the base station that possesses the ability of RRC or mobile management, or for possess the base station of the ability of RRC or mobile management for a concrete subscriber equipment.Can be the community of small base station or small base station from communication node, also can be low power communication node from communication node, can not possess RRC or not possess the ability of mobile management from communication node, or not possess RRC from communication node for a concrete subscriber equipment or do not possess the ability of mobile management.
The information interaction figure of the changing method that Fig. 3 provides for the embodiment of the present invention three.The main communication node in source is source macro base station, and source is source small base station from communication node.The main communication node of target is target side macro base station, and target is target side small base station from communication node.Wherein, source macro base station can be known and likely mutual load information each other etc. of the radio channel status information of the every other source small base station of communications of user equipment and source macro base station and source small base station, as shown in the figure, the embodiment of the present invention specifically comprises the following steps:
Step 310, source macro base station sends one-level handover request information to target side macro base station.
In addition, this handover request message is carried the partial information of the secondary handover request in step 320, comprises the identification information of UE, as X2APID, the information of the target small base station that E-RABID is corresponding or the community of target small base station, such as, the base station identification information such as PCI, ECGI.
Step 320, source macro base station sends secondary handover request information to target side small base station.
Above-mentioned steps 310 and step 320 can be carried out simultaneously, and source macro base station is initiated one-level handover request information to target macro base station, initiate secondary handover request information to the small base station of target side simultaneously.
Step 330, receives after corresponding handover request information when target side macro base station and target side small base station, can carry out the negotiation relevant for the handover request information of source.Can certainly be completely responsible by target side macro base station, directly to the little base station assigns data flow of target side.
The first negotiations process is as follows: target side macro base station notification target side small base station is accepted the data conversion transmission information that the E-RAB of some UE is corresponding and/or born follow-up E-RAB information service.Target side small base station is accepted information the execution that target side macro base station sends, optional, sends confirmation to target side macro base station; Or the information that target side macro base station sends is refused or accepted to target side small base station; Optionally, target side small base station provides refusal or accepts reason.
The second negotiations process is as follows: target side macro base station sends and accepts or refuse the data conversion transmission information that the E-RAB of some UE is corresponding and/or bear follow-up E-RAB information service to the small base station of specifying in handover request information.Small base station is accepted the information that target side macro base station sends, and carries out, optional, sends confirmation to target side macro base station, knows the acceptance of target side small base station or has refused corresponding secondary handover request in order to target side macro base station; Optionally, target side small base station provides the reason of accepting or refusing.
The third negotiations process is as follows: target side macro base station is waited for the feedback information of small base station, and this feedback information comprises that target side small base station is ready or refuses the information of secondary handover request.
Accordingly, the information that target side small base station carries according to secondary handover request, the confirmation sending to target side macro base station, knows the acceptance of target side small base station or has refused corresponding secondary handover request in order to target side macro base station.
Step 340, target side macro base station sends one-level Handover Request Acknowledge information to source macro base station,
Step 350, target side small base station sends secondary Handover Request Acknowledge information to source macro base station.
Step 360, source dominant base sends to switch to source small base station confirms negotiation information, informs that the UE that specify these base stations will switch.Comprise the UE identification information that will switch, the E-RAB identification information of UE, and the identification information of the identification information of target BS or target BS community.
In above-mentioned steps 350, can also send secondary Handover Request Acknowledge information to source small base station by target side small base station.When target side small base station sends secondary Handover Request Acknowledge information to source small base station, do not need step 360, do not need source dominant base to send to switch to source small base station and confirm negotiation information.
The information interaction figure of the changing method that Fig. 4 provides for the embodiment of the present invention four.As shown in the figure, the embodiment of the present invention specifically comprises the following steps:
Step 410, handover request is consulted whether to initiate from communication node in the main communication node in source and source, and which target side communication node to initiate one-level handover request and secondary handover request for.Destination communication node comprises that the main communication node of target and target are from communication node.
Step 420, the main communication node in source and source can send secondary handover request information to destination communication node from communication node.Destination communication node is that source communication node is wished the communication node that executing data forwards.Such as, the main communication node in source sends secondary handover request information to the main communication node of target, and source sends secondary handover request information from communication node to target from communication node.
Step 430, when the main communication node of target is received corresponding secondary handover request information, target, from communication node is received secondary handover request information, can be carried out holding consultation for the secondary handover request information of source.Can certainly be completely responsible by the main communication node of target, directly flow to target from communication node distribute data.
The first negotiations process is as follows: the main communication node notification target of target is accepted the data conversion transmission information that the E-RAB of some UE is corresponding and/or bears follow-up E-RAB information service from communication node.Accept from communication node information the execution that the main communication node of target sends, optional, send confirmation to destination communication node; Or accept from communication node refusal the information that the main communication node of target sends; Optionally, provide reason.
The second negotiations process is as follows: the main communication node of target sends to the target of specifying in handover request information from communication node to be accepted or refuse the data conversion transmission information that the E-RAB of some UE is corresponding and/or bears follow-up E-RAB information service.Miniature communication node is accepted the information that the main communication node of target sends, and carries out, optional, sends confirmation to destination communication node; Or message Miniature communication node refusal is accepted the information that destination communication node sends; Optionally, provide reason.
The third negotiations process is as follows: the main communication node of target is waited for the feedback information of Miniature communication node., Miniature communication node is ready or is refused the information of secondary handover request.Accordingly, the information that Miniature communication node carries according to secondary handover request, the confirmation sending to the main communication node of target, informs the acceptance of destination communication node Miniature communication node or has refused corresponding secondary handover request.
The 4th kind of negotiations process is as follows: the information that Miniature communication node carries according to secondary handover request, send confirmation to the main communication node of target, inform the acceptance of the main communication node Miniature communication of target node or refused a secondary handover request, and provide the relevant information of secondary handover request, comprise source communication node information, UE identification information, E-RAB relevant information.All right, further wait for the feedback information that the main communication node of target provides.Alternatively, the main communication node of target provides feedback information, agrees to or refuse determine from the secondary handover request of communication node, alternatively, provides the traffic flow information of suggestion Miniature communication economize on electricity agreement or refusal.
Step 440, the main communication node of target sends Handover Request Acknowledge information to source communication node.
Optionally, in step 440, to source, main communication node or source send secondary Handover Request Acknowledge information from communication node from communication node for the main communication node of target or target.Such as, to source, main communication node sends secondary Handover Request Acknowledge information to the main communication node of target, and target sends secondary Handover Request Acknowledge information from communication node to source from communication node.
The schematic diagram of the sources traffic node that Fig. 5 provides for the embodiment of the present invention five.As shown in the figure, the embodiment of the present invention specifically comprises: transmitter 51, receiver 52 and processor 53.
Transmitter 51 is for sending the handover request information that carries customer equipment identification information to destination communication node, destination communication node comprises the main communication node of target, and/or target is from communication node; The Handover Request Acknowledge information that receiver 52 sends in response to handover request information from communication node for the main communication node of receiving target or target, or the main communication node of receiving target and target carry out in response to handover request information the Handover Request Acknowledge information that information interaction obtains from communication node, and by Handover Request Acknowledge communication to processor; Processor 53, for receiving Handover Request Acknowledge information from processor, is switched to the data flow corresponding with subscriber equipment of sources traffic node carrying by destination communication node and carries according to Handover Request Acknowledge information.
In one embodiment, sources traffic node comprises that the main communication node in source and/or source are from communication node; Transmitter 51 sends specifically for the main communication node in source and/or source the handover request information that carries customer equipment identification information from communication node to destination communication node; Wherein, information entrained in handover request information specifically comprises: the main communication node in source and/or source be from the user equipment information of communication node, and the main communication node of target and/or target are from the target cell information of communication node.
Further, handover request information comprises one-level handover request information or secondary handover request information; Transmitter 51 is at least for following a kind of send mode: the one-level handover request information that the main communication node in source sends to the main communication node of target, the secondary handover request information that the main communication node in source sends to the main communication node of target, secondary handover request information that the main communication node in source sends to target from communication node, secondary handover request information that source sends to the main communication node of target from communication node and source are from communication node to target from the secondary handover request information of communication node transmission.Processor 53 is held consultation according to Handover Request Acknowledge information from communication node specifically for the main communication node in source and source, thereby main source communication node is switched to by destination communication node and is carried from the data flow corresponding with subscriber equipment of communication node carrying with source.
Can be found out by above-mentioned send mode, the main communication node in source can send one-level handover request information or secondary handover request information, and source can only send secondary handover request information from communication node.
Above-mentioned one-level handover request information is used to indicate radio resource control RRC, Signaling Radio Bearer SRB, PDCP PDCP streamed data, wireless link control RLC streamed data, one or more switching in media access control MAC streamed data and chain of command.Described one-level handover request also can be further used in designation data radio bearer DRB and user's face one or more switching.
Subscriber equipment can have multiple Signaling Radio Bearers and Data Radio Bearer, and the switching of described Signaling Radio Bearer SRB or Data Radio Bearer DRB can be the switching of Signaling Radio Bearer or the Data Radio Bearer of specified type.
Particularly, one-level handover request information at least comprises following a kind of information: the main communication node of source and customer equipment identification information or source from communication node wish that target side provides communication node information or the communication node cell information of information service, or comprises with source and wish that target side provides the E-RAB information of the communication node information of information service or carrying corresponding to communication node cell information.Wherein, the identification information of UE at least comprises following a kind of information: the X2APID of UE, or the mark of UE interface between communication node, or the cell-radio network of UE temporarily identifies (Cell Radio-NetworkTemporary Identifier, C-RNTI) mark, or UE is in the mark of CN, or UE is at radio resource control (Radio Resource Control, RRC), Signaling Radio Bearer SRB, PDCP streamed data, RLC streamed data, a kind of or combination in the mark in MAC streamed data and chain of command.Wherein, X2APID is the unique identification of UE on eNB side X2 interface.
One-level handover request information can further include the contextual information of subscriber equipment.Contextual information comprises the S1APID of subscriber equipment at MME, the security information of subscriber equipment, the E-RAB information of subscriber equipment, E-RAB information comprises E-RAB id information, cell information, DL data retransmission and UL GTP Tunnel Endpoint information under E-RAB.
In addition, source wishes that target side provides the communication node information of information service or communication node cell information at least to comprise following a kind of information: the main communication node information of target, target is from communication node information, the cell information of the main letter node of target, target is from the cell information of communication node, or comprises the E-RAB information of the carrying corresponding with these communication node information.The nodal information here comprises the identification information of node, and cell information comprises the identification information of community, as PCI, and ECGI, cell cluster identification information etc.
Above-mentioned secondary handover request information is used to indicate in lower floor's packet of Data Radio Bearer DRB, DRB and user's face one or more switching,
The switching of the lower floor's packet of the DRB in secondary handover request information, the PDCP streamed data bag that can be further used for indicating DRB, the RLC streamed data bag of DRB, the switching of the MAC streamed data bag of DRB.Particularly, secondary handover request information at least comprises following a kind of information: the customer equipment identification information of source communication node, the contextual information of subscriber equipment, the information of the main communication node in source and/or the main communication node of target, or comprise the cell information of the main communication node in source and/or the main communication node of target.
Customer equipment identification information in secondary handover request information at least comprises following a kind of information: the X2APID of UE, or the mark of UE interface between communication node, or the cell-radio network of UE temporarily identifies (Cell Radio-Network Temporary Identifier, C-RNTI) mark, or UE is in the mark of CN, or a kind of or combination in the mark of UE in Data Radio Bearer DRB, DRB lower floor packet and user's face.Wherein, the mark of UE in DRB lower floor packet further comprises that UE is at the PDCP of DRB streamed data bag, the RLC streamed data bag of DRB, the mark in the MAC streamed data bag of DRB.Wherein, X2APID is the unique identification of UE on eNB side X2 interface.
The information of the communication node in secondary handover request information comprises the identification information of node, and cell information comprises the identification information of community, as PCI, and ECGI, cell cluster identification information etc.
The contextual information of the subscriber equipment in secondary handover request information, comprise the S1APID of subscriber equipment at MME, the security information of subscriber equipment, subscriber equipment E-RAB information, E-RAB information comprises E-RABID information, cell information, DL data retransmission and up GTP pipeline terminal point information under E-RAB.
In addition, one-level handover request message is carried the partial information of secondary handover request, it comprises the identification information of the communication node of secondary handover request, initiate the cell identity information of the communication node of secondary handover request, initiate the identification information of the subscriber equipment of the communication node of secondary handover request, E-RABID information, one or more combination in the information of the Target cell of the information of the destination communication node that E-RABID is corresponding, destination communication node that E-RABID is corresponding.
In another embodiment, sources traffic node comprises that the main communication node in source and/or source are from communication node; Handover Request Acknowledge information comprises one-level Handover Request Acknowledge information or secondary Handover Request Acknowledge information; Receiver 52 is at least for following a kind of receive mode: the main communication node in source receives one-level Handover Request Acknowledge information or secondary Handover Request Acknowledge information; Source receives secondary Handover Request Acknowledge information from communication node.
Further, receiver 52 is at least for following a kind of receive mode: if the main communication node in source sends one-level handover request information to the main communication node of target, and the one-level Handover Request Acknowledge information that the main communication node of the main communication node receiving target in source sends; If the main communication node in source sends secondary handover request information to the main communication node of target, the secondary Handover Request Acknowledge information that the main communication node of the main communication node receiving target in source sends; If the main communication node in source sends secondary handover request information to target from communication node, the secondary Handover Request Acknowledge information that the main communication node receiving target in source sends from communication node; If source sends secondary handover request information from communication node to the main communication node of target, the secondary Handover Request Acknowledge information that source sends from the main communication node of communication node receiving target; If source sends secondary handover request information, the secondary Handover Request Acknowledge information that source sends from communication node receiving target from communication node from communication node to target from communication node; If source sends secondary handover request information, the secondary Handover Request Acknowledge information that the main communication node receiving target in source sends from communication node from communication node to target from communication node.
In another embodiment, sources traffic node comprises that the main communication node in source and/or source are from communication node, processor 53 is held consultation according to Handover Request Acknowledge information from communication node for the main communication node in source and source, thereby main source communication node and/or source are switched to by destination communication node and are carried from the data flow corresponding with subscriber equipment of communication node carrying.
In addition, the sources traffic node that the embodiment of the present invention provides also comprises: information exchange unit.
Information exchange unit carries out information interaction for the main communication node in source and source from communication node, thereby at least determines following a kind of information: determine the originating end of handover request information, originating end comprises that the main communication node in source and/or source are from communication node; Determine the receiving terminal of handover request information, receiving terminal comprises that the main communication node of target and/or target are from communication node; Determine the type of handover request information; And entrained information in definite handover request information; Wherein, handover request information comprises one-level handover request information or secondary handover request information.
Therefore, the sources traffic node that the embodiment of the present invention provides, by send the handover request information that carries customer equipment identification information to destination communication node, destination communication node comprises the main communication node of target, and/or target is from communication node; The Handover Request Acknowledge information that the main communication node of receiving target or target send from communication node, or the main communication node of receiving target and target are carried out the Handover Request Acknowledge information obtaining information interaction according to handover request information from communication node; According to Handover Request Acknowledge information, the data flow corresponding with subscriber equipment of sources traffic node carrying is switched to by destination communication node and carried, wherein, sources traffic node comprises the main communication node in source, and/or source is from communication node, the switching that can walk abreast of the communication node of having realized source and target side, and the GTP information of setting up data retransmission only need to directly send between source and the communication node of target side, and does not need to forward, thereby save the expense of signaling.
The schematic diagram of the destination communication node that Fig. 6 provides for the embodiment of the present invention six.As shown in the figure, the embodiment of the present invention specifically comprises: receiver 61 and transmitter 62.
The handover request information of the customer equipment identification information that carries that receiver 62 sends for destination communication node reception sources communication node, sources traffic node comprises the main communication node in source, and/or source is from communication node, and by handover request communication to processor; Transmitter 63 is for receiving Handover Request Acknowledge information from processor, send Handover Request Acknowledge information in response to handover request information to sources traffic node, the data flow corresponding with subscriber equipment of sources traffic node carrying is switched to by destination communication node and carried according to Handover Request Acknowledge information in order to sources traffic node.
Further, destination communication node comprises that the main communication node of target and target are from communication node; Receiver 61 is specifically for the main communication node of target, and/or target is from the handover request information of the customer equipment identification information that carries of communication node reception sources communication node transmission; And, transmitter 62 specifically comprises specifically for sending Handover Request Acknowledge information to sources traffic node: the main communication node of target or target send Handover Request Acknowledge information in response to handover request information to sources traffic node from communication node, or the main communication node of target and target are carried out information interaction from communication node in response to handover request information, thereby obtain Handover Request Acknowledge information, and send Handover Request Acknowledge information to sources traffic node.
In one embodiment, the destination communication node that the embodiment of the present invention provides also comprises: first information interactive unit.
First information interactive unit is for receiving handover request information when the main communication node of target, according to handover request information by the data flow of sources traffic node carrying at the main communication node of target with distribute between communication node; Notification target accepts from communication node the data flow that target is assigned with from communication node, and target accepts or refuse from communication node the data flow being assigned with; Or, from communication node, sending the information of accepting the data flow of specifying according to the target of specifying in handover request information to the target of specifying from communication node, appointed data flow is accepted or refused to the target of appointment from communication node.
Further, transmitter 62 is also accepted the data flow being assigned with from communication node for target, and sends and confirm to receive information to the main communication node of target; Or target is refused the data flow being assigned with from communication node, and the refusal that carries reason for rejection to the main communication node transmission of target is received information; Or the target of appointment is accepted appointed data flow from communication node, and send and confirm to receive information to the main communication node of target; Or the target of specifying refuses appointed data flow from communication node, and send to the main communication node of target the refusal that carries reason for rejection and receive information.
In another embodiment, the destination communication node that the embodiment of the present invention provides also comprises: the second information interaction unit.
The second information interaction unit is for receiving from communication node handover request information when target, send confirmation to the main communication node of target, in order to inform that the main communication node of target knows that according to confirmation target accepted or refused handover request information from communication node.
Further, the confirmation that receiving target sends from communication node is also waited for for the main communication node of target in the second information interaction unit.
In one embodiment, the destination communication node that the embodiment of the present invention provides also comprises: the 3rd information interaction unit.
The 3rd information interaction unit, for receiving from communication node handover request information when target, sends the confirmation of carrying handover request information to the main communication node of target.
Further, the feedback information that the 3rd information interaction unit also sends for the main communication node of receiving target, knows that from communication node the main communication node of target agrees to that target accepts handover request information or disagree with that target accepts handover request information from communication node from communication node in order to target.
Handover request information in the embodiment of the present invention comprises one-level handover request information or secondary handover request information; Handover Request Acknowledge information comprises one-level Handover Request Acknowledge information or secondary Handover Request Acknowledge information.
Further, receiver 61 is at least for following a kind of receive mode: the secondary handover request information that the secondary handover request information that the secondary handover request information that the main communication node of the main communication node reception sources of target sends to the main communication node of the main communication node reception sources of one-level handover request information, target sending, the main communication node reception sources of secondary handover request information, target that target sends from the main communication node of communication node reception sources send from communication node and target send from communication node reception sources from communication node.
Transmitter 62 sends one-level Handover Request Acknowledge information and/or secondary Handover Request Acknowledge information for the main communication node of target; Target sends secondary Handover Request Acknowledge information from communication node.In the embodiment of the present invention
Further, transmitter 62 is at least for following a kind of send mode: if the one-level handover request information that the main communication node of the main communication node reception sources of target sends sends one-level Handover Request Acknowledge information to sources traffic node; If the secondary handover request information that the main communication node of the main communication node reception sources of target sends, sends secondary Handover Request Acknowledge information to sources traffic node; If the secondary handover request information that the main communication node reception sources of target sends from communication node, sends secondary Handover Request Acknowledge information to source from communication node; If the secondary handover request information that target sends from the main communication node of communication node reception sources, to source, main communication node sends secondary Handover Request Acknowledge information; If the secondary handover request information that target sends from communication node reception sources from communication node, to source, main communication node sends secondary Handover Request Acknowledge information; If the secondary handover request information that target sends from communication node reception sources from communication node, sends secondary Handover Request Acknowledge information to source from communication node.
Wherein, one-level Handover Request Acknowledge information comprises for radio resource control rrc layer, Signaling Radio Bearer SRB, chain of command, PDCP shunting, RLC shunting, one or more Handover Request Acknowledge information in MAC shunting.In addition, one-level Handover Request Acknowledge information at least comprises following a kind of information: the destination communication node identification information that the customer equipment identification information of destination communication node based on sources traffic node provides, the customer equipment identification information that the customer equipment identification information of destination communication node based on sources traffic node provides, the corresponding relation of the customer equipment identification information of sources traffic node and the customer equipment identification information of destination communication node, the E-RAB list information of the access under the customer equipment identification information corresponding relation of the customer equipment identification information of sources traffic node and destination communication node.
Further, secondary Handover Request Acknowledge information at least comprises following a kind of information, sends the destination communication node customer equipment identification information corresponding with subscriber equipment of this secondary Handover Request Acknowledge information, and the E-RAB list information of this destination communication node reception.The E-RAB list information that this destination communication node receives comprises up GTP pipeline terminal point information and/or descending GTP pipeline terminal point information.
Therefore, the destination communication node that the embodiment of the present invention provides, the handover request information of the customer equipment identification information that carries sending by reception sources communication node, sources traffic node comprises the main communication node in source, and/or source is from communication node; Send Handover Request Acknowledge information to sources traffic node, the data flow corresponding with subscriber equipment of sources traffic node carrying is switched to by destination communication node and carried according to Handover Request Acknowledge information in order to sources traffic node, wherein, destination communication node comprises the main communication node of target, and/or target is from communication node, the switching that can walk abreast of the communication node of having realized source and target side, and the GTP information of setting up data retransmission only need to directly send between source and the communication node of target side, and do not need forwarding, thereby save the expense of signaling.
Professional should further recognize, unit and the algorithm steps of each example of describing in conjunction with embodiment disclosed herein, can realize with electronic hardware, computer software or the combination of the two, for the interchangeability of hardware and software is clearly described, composition and the step of each example described according to function in the above description in general manner.These functions are carried out with hardware or software mode actually, depend on application-specific and the design constraint of technical scheme.Professional and technical personnel can realize described function with distinct methods to each specifically should being used for, but this realization should not thought and exceeds scope of the present invention.
The software module that the method for describing in conjunction with embodiment disclosed herein or the step of algorithm can use hardware, processor to carry out, or the combination of the two is implemented.Software module can be placed in the storage medium of any other form known in random asccess memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technical field.
Above-described embodiment; object of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the foregoing is only the specific embodiment of the present invention; the protection range being not intended to limit the present invention; within the spirit and principles in the present invention all, any amendment of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.

Claims (55)

1. a changing method, is characterized in that, described method comprises:
Sources traffic node sends the handover request information that carries customer equipment identification information to destination communication node, described destination communication node comprises the main communication node of target, and/or target is from communication node;
Receive the Handover Request Acknowledge information that the main communication node of described target or target send in response to described handover request information from communication node, or receive the main communication node of described target and described target carries out in response to described handover request information the Handover Request Acknowledge information that information interaction obtains from communication node;
According to described Handover Request Acknowledge information, the data flow corresponding with described subscriber equipment of described sources traffic node carrying is switched to by described destination communication node and carried.
2. changing method according to claim 1, is characterized in that, described sources traffic node comprises that the main communication node in source and/or source are from communication node.
3. changing method according to claim 1 and 2, it is characterized in that, in described handover request information, entrained information specifically comprises: the main communication node in described source and/or source be from the described customer equipment identification information of communication node, and the main communication node of described target and/or described target are from the target cell information of communication node.
4. changing method according to claim 3, is characterized in that, described handover request information comprises one-level handover request information or secondary handover request information, the handover request information that described sources traffic node carries customer equipment identification information to destination communication node transmission at least comprises following a kind of send mode: the described one-level handover request information that the main communication node in described source sends to the main communication node of described target, the described secondary handover request information that the main communication node in described source sends to the main communication node of described target, the described secondary handover request information that the main communication node in described source sends to described target from communication node, the described secondary handover request information that the described secondary handover request information that described source sends to the main communication node of described target from communication node and described source send to described target from communication node from communication node.
5. changing method according to claim 4, it is characterized in that, described one-level handover request information is used to indicate radio resource control rrc layer, Signaling Radio Bearer SRB, PDCP PDCP shunting, wireless link control RLC shunting, one or more switching in media access control MAC shunting and chain of command.
6. changing method according to claim 5, it is characterized in that, described one-level handover request information at least comprises following a kind of information: the main communication node in source and/or source wish that from customer equipment identification information, the contextual information of subscriber equipment, the source of communication node target side provides communication node information or the communication node cell information of information service, or comprises with source and wish that target side provides the E-RAB information of the communication node information of information service or carrying corresponding to communication node cell information.
7. changing method according to claim 4, is characterized in that, described secondary handover request information is used to indicate in lower floor's packet of Data Radio Bearer DRB, described DRB and user's face one or more switching.
8. changing method according to claim 7, it is characterized in that, described secondary handover request information at least comprises following a kind of information: the customer equipment identification information of source communication node, the contextual information of subscriber equipment, the information of the main communication node in source and/or the main communication node of target, or comprise the cell information of the main communication node in source and/or the main communication node of target.
9. according to the changing method described in claim 5 or 7, it is characterized in that, described one-level handover request message is carried the partial information of secondary handover request, comprise the identification information of the communication node of initiating secondary handover request, initiate the cell identity information of the communication node of secondary handover request, initiate the customer equipment identification information of the communication node of secondary handover request, E-RABID information, one or more combination in the information of the Target cell of the information of the destination communication node that E-RABID is corresponding, destination communication node that E-RABID is corresponding.
10. according to the changing method described in any one in claim 1 to 9, it is characterized in that, described sources traffic node comprises that the main communication node in source and/or source are from communication node; Described Handover Request Acknowledge information comprises one-level Handover Request Acknowledge information or secondary Handover Request Acknowledge information; The Handover Request Acknowledge information that the main communication node of the described target of described reception or target send from communication node, or receive the Handover Request Acknowledge information that the main communication node of described target and described target carry out obtaining information interaction from communication node according to described handover request information and at least comprise following a kind of receive mode: the main communication node in described source receives described one-level Handover Request Acknowledge information or described secondary Handover Request Acknowledge information; Described source receives described secondary Handover Request Acknowledge information from communication node.
11. changing methods according to claim 10, is characterized in that, the main communication node in described source receives described one-level Handover Request Acknowledge information or described secondary Handover Request Acknowledge information; Described source receives described secondary Handover Request Acknowledge information from communication node and at least comprises following one:
If the main communication node in described source sends described one-level handover request information to the main communication node of described target, the main communication node in described source receives the described one-level Handover Request Acknowledge information that the main communication node of described target sends;
If the main communication node in described source sends described secondary handover request information to the main communication node of described target, the main communication node in described source receives the described secondary Handover Request Acknowledge information that the main communication node of described target sends;
If the main communication node in described source sends described secondary handover request information to described target from communication node, the main communication node in described source receives the described secondary Handover Request Acknowledge information that described target sends from communication node;
If described source sends described secondary handover request information from communication node to the main communication node of described target, described source receives from communication node the described secondary Handover Request Acknowledge information that the main communication node of described target sends;
If described source sends described secondary handover request information from communication node to described target from communication node, described source receives from communication node the described secondary Handover Request Acknowledge information that described target sends from communication node;
If described source sends described secondary handover request information from communication node to described target from communication node, the main communication node in described source receives the described secondary Handover Request Acknowledge information that described target sends from communication node.
12. according to the changing method described in claim 1 to 11 any one, it is characterized in that, described sources traffic node comprises that the main communication node in source and/or source are from communication node, and the described data flow corresponding with described subscriber equipment of described sources traffic node being carried according to described Handover Request Acknowledge information is switched to by described destination communication node carries specifically and comprise:
Hold consultation according to Handover Request Acknowledge information from communication node in the main communication node in described source and described source, thereby main source communication node and/or described source are switched to by described destination communication node and are carried from the data flow corresponding with described subscriber equipment of communication node carrying.
13. according to the changing method described in claim 1 to 12 any one, it is characterized in that, described sources traffic node also comprises before sending to destination communication node the handover request information that carries customer equipment identification information:
Information interaction is carried out from communication node in the main communication node in described source and described source, thereby at least determines following a kind of information: determine the originating end of described handover request information, described originating end comprises that the main communication node in described source and/or described source are from communication node; Determine the receiving terminal of described handover request information, described receiving terminal comprises that the main communication node of described target and/or described target are from communication node; Determine the type of described handover request information; And entrained information in definite described handover request information; Wherein, described handover request information comprises described one-level handover request information or described secondary handover request information.
14. 1 kinds of changing methods, is characterized in that, described method comprises:
The handover request information of the customer equipment identification information that carries that destination communication node reception sources communication node sends, described sources traffic node comprises the main communication node in source, and/or source is from communication node;
Send described Handover Request Acknowledge information in response to described handover request information to described sources traffic node, the data flow corresponding with described subscriber equipment of described sources traffic node carrying is switched to by described destination communication node and carried according to described Handover Request Acknowledge information in order to described sources traffic node.
15. changing methods according to claim 14, is characterized in that, described destination communication node comprises that the main communication node of target and/or target are from communication node;
And, describedly send described Handover Request Acknowledge information to described sources traffic node and specifically comprise: the main communication node of described target or described target send described Handover Request Acknowledge information in response to described handover request information to described sources traffic node from communication node, or the main communication node of described target and described target are carried out information interaction from communication node in response to described handover request information, thereby obtain Handover Request Acknowledge information, and send described Handover Request Acknowledge information to described sources traffic node.
16. changing methods according to claim 15, is characterized in that, the main communication node of described target and described target are carried out information interaction from communication node in response to described handover request information, specifically comprise thereby obtain Handover Request Acknowledge information:
When the main communication node of described target receives described handover request information, according to described handover request information, the described data flow of described sources traffic node carrying is distributed between communication node at the main communication node of described target and described target;
Notify described target to accept from communication node the data flow that described target is assigned with from communication node, the data flow of described target from being assigned with described in communication node acceptance or refusal; Or, from communication node, sending to the target of described appointment the information of accepting the data flow of specifying from communication node according to the target of specifying in described handover request information, described appointed data flow is accepted or refused to the target of described appointment from communication node.
17. changing methods according to claim 16, it is characterized in that, described target specifically comprises from the data flow being assigned with described in communication node acceptance or refusal: the data flow of described target from being assigned with described in communication node acceptance, and send and confirm to receive information to the main communication node of described target; Or the data flow of described target from being assigned with described in communication node refusal, and the refusal that carries reason for rejection to the main communication node transmission of described target is received information;
And the target of described appointment is accepted or refuse described appointed data flow specifically to comprise from communication node: the target of described appointment is accepted described appointed data flow from communication node, and send and confirm to receive information to the main communication node of described target; Or the target of described appointment is from the described appointed data flow of communication node refusal, and sends to the main communication node of described target the refusal that carries reason for rejection and receive information.
18. changing methods according to claim 15, is characterized in that, the main communication node of described target and described target are carried out information interaction from communication node in response to described handover request information, specifically comprise thereby obtain Handover Request Acknowledge information:
When described target receives from communication node described handover request information, send confirmation to the main communication node of described target, in order to inform that the main communication node of described target knows that according to confirmation described target accepted or refused described handover request information from communication node.
19. changing methods according to claim 18, is characterized in that, describedly receive from communication node described handover request information when described target, before the main communication node of described target sends confirmation, also comprise:
The main communication node of described target is waited for and is received the confirmation that described target sends from communication node.
20. changing methods according to claim 15, is characterized in that, the main communication node of described target and described target are carried out information interaction from communication node in response to described handover request information, specifically comprise thereby obtain Handover Request Acknowledge information:
When described target receives from communication node described handover request information, send the confirmation of carrying described handover request information to the main communication node of described target.
21. changing methods according to claim 20, it is characterized in that, describedly after sending the confirmation of carrying described handover request information, the main communication node of described target also comprises: receive the described feedback information of the main communication node transmission of described target, know that from communication node the main communication node of described target agrees to that described target accepts described handover request information or disagree with that described target accepts described handover request information from communication node from communication node in order to described target.
22. according to claim 14 to the changing method described in 21 any one, it is characterized in that, described handover request information comprises one-level handover request information or secondary handover request information; Described Handover Request Acknowledge information comprises one-level Handover Request Acknowledge information or secondary Handover Request Acknowledge information.
23. changing methods according to claim 22, it is characterized in that, the main communication node of described target, and/or described target at least comprises following a kind of receive mode from the handover request information of the customer equipment identification information that carries of communication node reception sources communication node transmission: the main communication node of described target receives the main communication node in described source to the described one-level handover request information sending, the main communication node of described target receives the described secondary handover request information that the main communication node in described source sends, described target receives from communication node the described secondary handover request information that the main communication node in described source sends, the main communication node of described target receives described source and receives from communication node the described secondary handover request information that described source sends from communication node from described secondary handover request information and the described target of communication node transmission.
24. changing methods according to claim 22, is characterized in that, the main communication node of described target sends one-level Handover Request Acknowledge information and/or secondary Handover Request Acknowledge information; Described target sends secondary Handover Request Acknowledge information from communication node.
25. changing methods according to claim 24, is characterized in that, the main communication node of described target, and/or described target sends described Handover Request Acknowledge information from communication node to described sources traffic node and at least comprises following a kind of send mode:
If the main communication node of described target receives the described one-level handover request information that the main communication node in described source sends, send described one-level Handover Request Acknowledge information to described sources traffic node;
If the main communication node of described target receives the described secondary handover request information that the main communication node in described source sends, send described secondary Handover Request Acknowledge information to described sources traffic node;
If the main communication node of described target receives the described secondary handover request information that described source sends from communication node, send described secondary Handover Request Acknowledge information to described source from communication node;
If the described secondary handover request information that described target sends from the main communication node of communication node reception sources, sends described secondary Handover Request Acknowledge information to the main communication node in described source;
If described target receives from communication node the described secondary handover request information that described source sends from communication node, send described secondary Handover Request Acknowledge information to the main communication node in described source;
If described target receives from communication node the described secondary handover request information that described source sends from communication node, send described secondary Handover Request Acknowledge information to described source from communication node.
26. according to the changing method described in claim 24 or 25, it is characterized in that, described one-level Handover Request Acknowledge information comprises for radio resource control rrc layer, Signaling Radio Bearer SRB, chain of command, PDCP shunting, RLC shunting, one or more Handover Request Acknowledge information in MAC shunting.
27. according to the changing method described in claim 24 or 25, it is characterized in that, described one-level Handover Request Acknowledge information at least comprises following a kind of information: the destination communication node identification information that the customer equipment identification information of destination communication node based on sources traffic node provides, the customer equipment identification information that the customer equipment identification information of destination communication node based on sources traffic node provides, the corresponding relation of the customer equipment identification information of sources traffic node and the customer equipment identification information of destination communication node, the E-RAB list information of the access under the customer equipment identification information corresponding relation of the customer equipment identification information of sources traffic node and destination communication node.
28. according to the changing method described in claim 24 or 25, it is characterized in that, described secondary Handover Request Acknowledge information at least comprises following a kind of information, send the destination communication node customer equipment identification information corresponding with subscriber equipment of this secondary Handover Request Acknowledge information, and the E-RAB list information of this destination communication node reception.
29. changing methods according to claim 28, is characterized in that, the E-RAB list information that described destination communication node receives comprises up GPRS pipe protocol GPRS pipe protocol GTP pipeline terminal point information and/or descending GTP pipeline terminal point information.
30. 1 kinds of sources traffic nodes, is characterized in that, described node comprises:
Transmitter, for send the handover request information that carries customer equipment identification information to destination communication node, described destination communication node comprises the main communication node of target, and/or target is from communication node;
Receiver, the Handover Request Acknowledge information sending in response to described handover request information from communication node for receiving the main communication node of described target or target, or receive the main communication node of described target and described target and carry out in response to described handover request information the Handover Request Acknowledge information that information interaction obtains from communication node, and by described Handover Request Acknowledge communication to processor;
Processor, for receive described Handover Request Acknowledge information from described processor, is switched to the data flow corresponding with described subscriber equipment of described sources traffic node carrying by described destination communication node and carries according to described Handover Request Acknowledge information.
31. sources traffic nodes according to claim 30, it is characterized in that, described sources traffic node comprises that the main communication node in source and source are from communication node, in described handover request information, entrained information specifically comprises: the main communication node in described source and/or source be from the described customer equipment identification information of communication node, and the main communication node of described target and/or described target are from the target cell information of communication node.
32. sources traffic nodes according to claim 31, is characterized in that, described handover request information comprises one-level handover request information or secondary handover request information, described transmitter is at least for following a kind of send mode: the described one-level handover request information that the main communication node in described source sends to the main communication node of described target, the described secondary handover request information that the main communication node in described source sends to the main communication node of described target, the described secondary handover request information that the main communication node in described source sends to described target from communication node, the described secondary handover request information that the described secondary handover request information that described source sends to the main communication node of described target from communication node and described source send to described target from communication node from communication node.
33. sources traffic nodes according to claim 32, it is characterized in that, described one-level handover request information is used to indicate radio resource control rrc layer, Signaling Radio Bearer SRB, PDCP shunting, RLC shunting, MAC shunting, and one or more switching in chain of command, wherein, described one-level handover request information at least comprises following a kind of information: the main communication node in source and/or source are from the customer equipment identification information of communication node, the contextual information of subscriber equipment, source wishes that target side provides communication node information or the communication node cell information of information service, or comprise with source and wish that target side provides the E-RAB information of the communication node information of information service or carrying corresponding to communication node cell information.
34. sources traffic nodes according to claim 32, it is characterized in that, described secondary handover request information is used to indicate in lower floor's packet of Data Radio Bearer DRB, described DRB and user's face one or more switching, wherein, described secondary handover request information at least comprises following a kind of information: the customer equipment identification information of source communication node, the contextual information of subscriber equipment, the information of the main communication node in source and/or the main communication node of target, or comprise the cell information of the main communication node in source and/or the main communication node of target.
35. according to the sources traffic node described in claim 33 or 34, it is characterized in that, described one-level handover request message is carried the partial information of secondary handover request, comprise the identification information of the communication node of initiating secondary handover request, initiate the cell identity information of the communication node of secondary handover request, initiate the customer equipment identification information of the communication node of secondary handover request, E-RABID information, one or more combination in the information of the Target cell of the information of the destination communication node that E-RABID is corresponding, destination communication node that E-RABID is corresponding.
36. according to the sources traffic node described in claim 30 to 35 any one, it is characterized in that, described sources traffic node comprises that the main communication node in source and/or source are from communication node; Described Handover Request Acknowledge information comprises one-level Handover Request Acknowledge information or secondary Handover Request Acknowledge information; Described receiver is at least for following a kind of receive mode: the main communication node in described source receives described one-level Handover Request Acknowledge information or described secondary Handover Request Acknowledge information; Described source receives described secondary Handover Request Acknowledge information from communication node.
37. sources traffic nodes according to claim 36, it is characterized in that, described receiver is at least for following a kind of receive mode: if the main communication node in described source sends described one-level handover request information to the main communication node of described target, the main communication node in described source receives the described one-level Handover Request Acknowledge information that the main communication node of described target sends; If the main communication node in described source sends described secondary handover request information to the main communication node of described target, the main communication node in described source receives the described secondary Handover Request Acknowledge information that the main communication node of described target sends; If the main communication node in described source sends described secondary handover request information to described target from communication node, the main communication node in described source receives the described secondary Handover Request Acknowledge information that described target sends from communication node; If described source sends described secondary handover request information from communication node to the main communication node of described target, described source receives from communication node the described secondary Handover Request Acknowledge information that the main communication node of described target sends; If described source sends described secondary handover request information from communication node to described target from communication node, described source receives from communication node the described secondary Handover Request Acknowledge information that described target sends from communication node; If described source sends described secondary handover request information from communication node to described target from communication node, the main communication node in described source receives the described secondary Handover Request Acknowledge information that described target sends from communication node.
38. according to the sources traffic node described in claim 30 to 37 any one, it is characterized in that, described sources traffic node comprises that the main communication node in source and/or source are from communication node, described processor is held consultation according to Handover Request Acknowledge information from communication node for the main communication node in described source and described source, thereby main source communication node and/or described source are switched to by described destination communication node and are carried from the data flow corresponding with described subscriber equipment of communication node carrying.
39. according to the sources traffic node described in claim 30 to 38 any one, it is characterized in that, described node also comprises:
Information exchange unit, carry out information interaction for the main communication node in described source and described source from communication node, thereby at least determine following a kind of information: determine the originating end of described handover request information, described originating end comprises that the main communication node in described source and/or described source are from communication node; Determine the receiving terminal of described handover request information, described receiving terminal comprises that the main communication node of described target and/or described target are from communication node; Determine the type of described handover request information; And entrained information in definite described handover request information; Wherein, described handover request information comprises described one-level handover request information or described secondary handover request information.
40. 1 kinds of destination communication node, is characterized in that, described node comprises:
Receiver, the handover request information of the customer equipment identification information that carries sending for destination communication node reception sources communication node, described sources traffic node comprises the main communication node in source, and/or source is from communication node, and by described handover request communication to processor;
Transmitter, for receiving described Handover Request Acknowledge information from described processor, send described Handover Request Acknowledge information in response to described handover request information to described sources traffic node, the data flow corresponding with described subscriber equipment of described sources traffic node carrying is switched to by described destination communication node and carried according to described Handover Request Acknowledge information in order to described sources traffic node.
41. according to the destination communication node described in claim 40, it is characterized in that, described destination communication node comprises that the main communication node of target and target are from communication node;
And, described transmitter sends described Handover Request Acknowledge information to described sources traffic node and specifically comprises specifically for described: the main communication node of described target or described target send described Handover Request Acknowledge information in response to described handover request information to described sources traffic node from communication node, or the main communication node of described target and described target are carried out information interaction from communication node in response to described handover request information, thereby obtain Handover Request Acknowledge information, and send described Handover Request Acknowledge information to described sources traffic node.
42. according to the destination communication node described in claim 41, it is characterized in that, described node also comprises:
First information interactive unit, for receiving described handover request information when the main communication node of described target, according to described handover request information, the described data flow of described sources traffic node carrying is distributed between communication node at the main communication node of described target and described target; Notify described target to accept from communication node the data flow that described target is assigned with from communication node, the data flow of described target from being assigned with described in communication node acceptance or refusal; Or, from communication node, sending to the target of described appointment the information of accepting the data flow of specifying from communication node according to the target of specifying in described handover request information, described appointed data flow is accepted or refused to the target of described appointment from communication node.
43. according to the destination communication node described in claim 42, it is characterized in that, described transmitter is the data flow from being assigned with described in communication node acceptance for described target also, and sends and confirm to receive information to the main communication node of described target; Or the data flow of described target from being assigned with described in communication node refusal, and the refusal that carries reason for rejection to the main communication node transmission of described target is received information; Or the target of described appointment is accepted described appointed data flow from communication node, and send and confirm to receive information to the main communication node of described target; Or the target of described appointment is from the described appointed data flow of communication node refusal, and sends to the main communication node of described target the refusal that carries reason for rejection and receive information.
44. according to the destination communication node described in claim 41, it is characterized in that, described node also comprises:
The second information interaction unit, for receiving from communication node described handover request information when described target, send confirmation to the main communication node of described target, in order to inform that the main communication node of described target knows that according to confirmation described target accepted or refused described handover request information from communication node.
45. according to the destination communication node described in claim 44, it is characterized in that, described the second information interaction unit is also waited for and received the confirmation that described target sends from communication node for the main communication node of described target.
46. according to the destination communication node described in claim 41, it is characterized in that, described node also comprises:
The 3rd information interaction unit, for receiving from communication node described handover request information when described target, sends the confirmation of carrying described handover request information to the main communication node of described target.
47. according to the destination communication node described in claim 46, it is characterized in that, the described feedback information that described the 3rd information interaction unit also sends for receiving the main communication node of described target, knows that from communication node the main communication node of described target agrees to that described target accepts described handover request information or disagree with that described target accepts described handover request information from communication node from communication node in order to described target.
48. according to the destination communication node described in claim 40 to 47 any one, it is characterized in that, described handover request information comprises one-level handover request information or secondary handover request information; Described Handover Request Acknowledge information comprises one-level Handover Request Acknowledge information or secondary Handover Request Acknowledge information.
49. according to the destination communication node described in claim 48 any one, it is characterized in that, described receiver is at least for following a kind of receive mode: the main communication node of described target receives the main communication node in described source to the described one-level handover request information sending, the main communication node of described target receives the described secondary handover request information that the main communication node in described source sends, described target receives from communication node the described secondary handover request information that the main communication node in described source sends, the main communication node of described target receives described source and receives from communication node the described secondary handover request information that described source sends from communication node from described secondary handover request information and the described target of communication node transmission.
50. according to the destination communication node described in claim 48, it is characterized in that, described transmitter sends one-level Handover Request Acknowledge information and/or secondary Handover Request Acknowledge information for the main communication node of described target; Described target sends secondary Handover Request Acknowledge information from communication node.
51. according to the destination communication node described in claim 50, it is characterized in that, described transmitter is at least for following a kind of send mode: if the main communication node of described target receives the described one-level handover request information that the main communication node in described source sends, send described one-level Handover Request Acknowledge information to described sources traffic node; If the main communication node of described target receives the described secondary handover request information that the main communication node in described source sends, send described secondary Handover Request Acknowledge information to described sources traffic node; If the main communication node of described target receives the described secondary handover request information that described source sends from communication node, send described secondary Handover Request Acknowledge information to described source from communication node; If the described secondary handover request information that described target sends from the main communication node of communication node reception sources, sends described secondary Handover Request Acknowledge information to the main communication node in described source; If described target receives from communication node the described secondary handover request information that described source sends from communication node, send described secondary Handover Request Acknowledge information to the main communication node in described source; If described target receives from communication node the described secondary handover request information that described source sends from communication node, send described secondary Handover Request Acknowledge letter to described source from communication node.
52. according to the destination communication node described in claim 50 or 51, it is characterized in that, described one-level Handover Request Acknowledge information comprises for radio resource control rrc layer, Signaling Radio Bearer SRB, chain of command, PDCP shunting, RLC shunting, one or more Handover Request Acknowledge information in MAC shunting.
53. according to the destination communication node described in claim 50 or 51, it is characterized in that, described one-level Handover Request Acknowledge information at least comprises following a kind of information: the destination communication node identification information that the customer equipment identification information of destination communication node based on sources traffic node provides, the customer equipment identification information that the customer equipment identification information of destination communication node based on sources traffic node provides, the corresponding relation of the customer equipment identification information of sources traffic node and the customer equipment identification information of destination communication node, the E-RAB list information of the access under the customer equipment identification information corresponding relation of the customer equipment identification information of sources traffic node and destination communication node.
54. according to the destination communication node described in claim 50 or 51, it is characterized in that, described secondary Handover Request Acknowledge information at least comprises following a kind of information, send the destination communication node customer equipment identification information corresponding with subscriber equipment of this secondary Handover Request Acknowledge information, and the E-RAB list information of this destination communication node reception.
55. according to the destination communication node described in claim 54, it is characterized in that, the E-RAB list information that described destination communication node receives comprises up GTP pipeline terminal point information and/or descending GTP pipeline terminal point information.
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