CN108282815A

CN108282815A - A kind of method and data processing equipment of data processing

Info

Publication number: CN108282815A
Application number: CN201710008158.7A
Authority: CN
Inventors: 刘佳敏; 张大钧; 汪颖
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2017-01-05
Filing date: 2017-01-05
Publication date: 2018-07-13
Anticipated expiration: 2037-01-05
Also published as: CN108282815B

Abstract

The present embodiments relate to wireless communication technology field, more particularly to a kind of method and data processing equipment carrying out data processing, to solve the problem of that there are no a kind of methods of data processing to ensure data lossless transmission in prior art mapping relations change procedure.The data processing equipment of the embodiment of the present invention determines that the mapping relations needs of the PDU flow and RB of user equipment change；By target PDU flow, the first data some or all of in the RB of source are transferred in target RB data processing equipment.Since the embodiment of the present invention is after the mapping relations of PDU flow and RB change, the first data of some or all of target PDU flow in the RB of source have been transferred in target RB, the corresponding target RB of target PDU flow transmit part or all of first data after variation capable of being used, to ensure that data lossless transmits in mapping relations change procedure.

Description

A kind of method and data processing equipment of data processing

Technical field

The present invention relates to wireless communication technology field, more particularly to the method and data processing equipment of a kind of data processing.

Background technology

The network deployment structure that 5G mobile communication system may be used is as shown in Figure 1, be typical LTE (Long Term Evolution, long term evolution) framework.There are multiple cells under eNB (evolution base station), UE (terminal) is carried out with cell under connected state It eats dishes without rice or wine data transmit-receive.Wherein, carried out data transmission by S1 interfaces between core net and eNB；Pass through between eNB and other eNB X2 interface carries out data transmission.

5G mobile communication system can also use network deployment structure as shown in Figure 2, network side node to be divided into CU (Central Unit, central location) and DU (Distributed Unit, distributed unit), a CU are controlled in certain area Multiple DU of deployment, these DU carry out empty especially by TRP (Transmission Reception Point, transfer point) and UE Port transmission.Wherein, one or more TRP can be that UE is serviced simultaneously, carry out data transmission.

It is Unify legislation in conjunction with the network architecture as depicted in figs. 1 and 2, by the CU/DU (tools in the eNB and Fig. 2 in Fig. 1 Body is TRP), all it is referred to as NG-NB (next-generation base station) and eLTE eNB (evolution LTE base station).As shown in figure 3, the network of 5G The logic entity that framework includes is the CN-C (core network control surface functional entity) and CN-U (cores positioned at core net respectively Network users face functional entity)；And the NG-NB and eLTE eNB positioned at access net.Wherein, CN-C and NG-NB/eLTE eNB are built Vertical S1*-C interfaces are used to control the transmission of plane signaling；CN-U and NG-NB/eLTE eNB establish S1*-U and are passed for user face data It is defeated.X2* interfaces are established between wireless access network NG-N/eLTE eNB B, X2* connectors support control plane (such as X2*-C) simultaneously With user plane functions (such as X2*-U).

Wherein, upper establish of S1*-C connects by the control plane of granularity of UE, is established with PDU (Packet on S1*-U Data Unit, Packet Data Unit) Session (session) is that the user plane of granularity connects, a UE is only capable of keeping one simultaneously S1*-C between CN-C is connect, but can be established multiple PDU Session with CN-U on S1*-U interfaces simultaneously and be The user plane of granularity connects.Wireless access network can there are one or multiple NG-NB for UE provide service simultaneously.

Since 5G core nets do not have the concept of Bearer (carrying), core net CN-C to be handed down to the QoS (Quality of NG-NB Of Service, quality of service) parameter be with flow (stream) be granularity configure；On the other hand still due to the NG-NB of access net It is so that granularity carries out QoS management with RB (Radio Bearer, radio bearer).For including multiple in a PDU Session Different PDU flow need the NG-NB that access is netted to establish the mapping relations of flow to RB, a PDU flow are mapped to The RB that one corresponding QOS is required is transmitted.After the mapping relations of PDU flow to RB change, need mapping relations The PDU flow of variation are mapped to new RB and are transmitted.But after the mapping relations of PDU flow to RB change, such as What ensures that data lossless transmission becomes urgent problem to be solved in mapping relations change procedure.

In conclusion currently, in mapping relations change procedure, there are no a kind of method of data processing ensure data without Damage transmission.

Invention content

The present invention provides a kind of method and data processing equipment carrying out data processing, is closed to solve prior art mapping It is in change procedure, there are no a kind of methods of data processing to ensure the problem of data lossless transmits.

Based on the above issues, the embodiment of the present invention provides a kind of method carrying out data processing, including：

Data processing equipment determines that the mapping of the Packet Data Unit stream PDU flow and radio bearer RB of user equipment are closed System needs to change；

By target PDU flow, the first data some or all of in the RB of source are transferred to target to the data processing equipment In RB；

Wherein, the target PDU flow are the PDU flow for needing to change mapping relations.

Optionally, the first data of the target PDU flow include it is following in some or all of：

The data of unallocated sequence number SN in the target PDU flow；

Without the data of air interface transmission in the target PDU flow；

SN has been distributed in the target PDU flow and is passed through air interface transmission but is not received by the confirmation of confirmation message Mode A M data；

SN has been distributed in the target PDU flow from first and has passed through air interface transmission but is not received by confirmation and has been disappeared Whole AM data after the AM data of breath.

Optionally, if the mapping relations of PDU flow and RB of the user equipment after variation include the source RB, institute It states data processing equipment all the first data of target PDU flow described in the source RB are transferred in the target RB.

Optionally, described if the mapping relations of PDU flow and RB of the user equipment after variation include the source RB Part first data of the target PDU flow in the RB of source are transferred in target RB by data processing equipment, including：

The data processing equipment is by the data of the unallocated SN of target PDU flow in the source RB and/or without sky The data of port transmission are transferred in the target RB.

Optionally, if variation after user equipment PDU flow and RB mapping relations in include the source RB, All the first data of target PDU flow described in the source RB are transferred in the target RB by the data processing equipment.

Optionally, the data processing equipment needs to occur in the mapping relations of the PDU flow and RB that determine user equipment After variation, further include：

The data processing equipment is answered the changed RB of whole RB or mapping relations of the user equipment Bit manipulation.

Optionally, the first data of some or all of target PDU flow in the RB of source are transferred to by the data processing equipment In target RB, including：

The data processing equipment is according to arrival times of part or all of first data and the target RB Part or all of first data are inserted into the original of the target RB by the arrival time of legacy data sequentially in time In data；Or

The data processing equipment uses preset interleaved mode, part or all of first data is inserted into described In the legacy data of target RB；Or

The data processing equipment is original according to the priority of part or all of first data and the target RB's Part or all of first data are inserted into the target RB by the priority of data according to the sequence of priority from high to low Legacy data in.

Optionally, part or all of first data being inserted into the target RB are packet data polymerized agreement industry The data of business data cell PDCP SDU formats.

The data processing equipment deletes corresponding discrete second data of target PDU flow described in the source RB It removes；Or

The data processing equipment presses corresponding discrete second data of target PDU flow described in the source RB According to the sequence of the SN serial numbers of data, it is sent to high level successively.

Optionally, if the data processing equipment be node, first data be downlink send end data, described second Data are uplink receiving end data；

If the data processing equipment is user equipment, first data are that uplink sends end data, second number According to for downlink reception end data.

Optionally, if the data processing equipment is user equipment, the user equipment determines the PDU of user equipment The mapping relations needs of flow and RB change, including：

The user equipment determines that the mapping relations of PDU flow and RB need to occur according to the notice of the node received Variation；

The user equipment determines the target PDU flow according to following manner：

The user equipment determines the target PDU flow according to the notice of the node received.

Optionally, the PDU flow of the user equipment are accessed with the variation of RB mapping relations by the user equipment Caused by node is reconfigured, and the data processing equipment is node, and this method further includes：

The node is after the completion of determining total data processing of the target PDU flow in the RB of source, to the user The mapping relations of the PDU flow and RB of equipment are reconfigured.

Optionally, the PDU flow of the user equipment are accessed with the variation of RB mapping relations by the user equipment Caused by node is reconfigured, and the data processing equipment is node, and the node exists target PDU flow Before the first data are transferred in target RB some or all of in the RB of source, further include：

The node is according to the determining target PDU flow some or all of in following manner：

The node according to needed in each RB change mapping relations PDU flow quantity, by the minimum number Need the PDU flow for changing mapping relations as target PDU flow in RB；

The data packet number that the node is changed as needed in the PDU flow of mapping relations determines target PDU flow；

The complexity that the node changes the corresponding transmission states of PDU flow of mapping relations as needed determines target PDU flow；

The corresponding priority of PDU flow that the node changes mapping relations as needed determines target PDU flow；

The corresponding quality of service indexs of PDU flow that the node changes mapping relations as needed determine target PDU flow。

Optionally, the variation of the PDU flow and RB mapping relations of the user equipment is cut by user equipment needs Caused by shifting to destination node, and the data processing equipment is source node, and this method further includes：

By target PDU flow, the first data some or all of in the RB of source are transferred to it in target RB to the source node Afterwards, by data in the target RB by the forwarding data channel forward between the destination node and the source node to described Destination node.

By target PDU flow, the first data some or all of in the RB of source are transferred to it in target RB to the source node Afterwards, the original SN status informations of the target RB are sent to the destination node, and will transfer to the target RB It distribution SN and by air interface transmission but is not received by the corresponding SN status informations of AM data of confirmation message and is adjusted to be not required to It retransmits, and the SN status informations after adjustment is sent to the destination node.

Optionally, the variation of the PDU flow and RB mapping relations of the user equipment is cut by user equipment needs Caused by shifting to destination node, and the data processing equipment is source node, and the source node is by target PDU flow in source RB In some or all of before the first data are transferred in target RB, further include：

The source node determines the target PDU flow according to the notice of the destination node received.

Optionally, the notice includes the target PDU flow；Or

The notice includes the mapping relations of the PDU flow and RB of the user equipment after variation.

Optionally, if the notice includes the mapping relations of the PDU flow and RB of the user equipment after variation, The source node is according to the determining target PDU flow some or all of in following manner：

The source node according to needed in each RB change mapping relations PDU flow quantity, by the minimum number RB in need change mapping relations PDU flow as target PDU flow；

The data packet number that the source node is changed as needed in the PDU flow of mapping relations determines target PDU flow；

The complexity that the source node changes the corresponding transmission states of PDU flow of mapping relations as needed determines mesh Mark PDU flow；

The corresponding priority of PDU flow that the source node changes mapping relations as needed determines target PDU flow；

The corresponding quality of service indexs of PDU flow that the source node changes mapping relations as needed determine target PDU flow。

On the other hand a kind of, data processing equipment of the embodiment of the present invention, including：

Determining module, for determining that the mapping of the Packet Data Unit stream PDU flow and radio bearer RB of user equipment are closed System needs to change；

Processing module, for the first data to be transferred to target RB some or all of in the RB of source by target PDU flow In；

The data of unallocated sequence number SN in the target PDU flow；

Without the data of air interface transmission in the target PDU flow；

Optionally, the processing module, is specifically used for：

If the mapping relations of the PDU flow and RB of the user equipment after variation include the source RB, by the source RB Described in target PDU flow all the first data be transferred in the target RB.

Optionally, the processing module, is specifically used for：

If the mapping relations of the PDU flow and RB of the user equipment after variation include the source RB, by the source RB It the data of the unallocated SN of middle target PDU flow and/or is transferred in the target RB without the data of air interface transmission.

Optionally, the processing module, is specifically used for：

If not including the source RB in the mapping relations of the PDU flow and RB of the user equipment after variation, by the source All the first data of the flow of target PDU described in RB are transferred in the target RB.

Optionally, the determining module, is additionally operable to：

After the mapping relations needs for the PDU flow and RB for determining user equipment change, by the user equipment Whole RB or the changed RB of mapping relations carry out reset operation.

Optionally, the processing module, is specifically used for：

When according to the arrival of the arrival time of part or all of first data and the legacy data of the target RB Between, part or all of first data are inserted into the legacy data of the target RB sequentially in time；Or

Using preset interleaved mode, part or all of first data are inserted into the legacy data of the target RB In；Or

According to the priority of the priority of part or all of first data and the legacy data of the target RB, according to Part or all of first data are inserted into the legacy data of the target RB by the sequence of priority from high to low.

Optionally, the determining module, is additionally operable to：

After determining that the mapping relations needs of the PDU flow and RB of user equipment change, described in the source RB Corresponding discrete second data of target PDU flow are deleted；Or

By target PDU flow described in the source RB corresponding discrete second data according to the SN serial numbers of data Sequentially, it is sent to high level successively.

Optionally, if the data processing equipment is user equipment, the determining module is specifically used for：

Determine that the mapping relations needs of PDU flow and RB change according to the notice of the node received；

The determining module, is specifically used for：

The target PDU flow are determined according to following manner：

The target PDU flow are determined according to the notice of the node received.

Optionally, the processing module, is additionally operable to：

If the PDU flow of the user equipment and the variation of RB mapping relations are the nodes accessed by the user equipment Caused by being reconfigured, and the data processing equipment is node, is determining the target PDU flow in source RB In total data processing after the completion of, the mapping relations of the PDU flow and RB of the user equipment are reconfigured.

Optionally, the processing module, is additionally operable to：

If the PDU flow of the user equipment and the variation of RB mapping relations are the nodes accessed by the user equipment Caused by being reconfigured, and the data processing equipment is node, by parts of the target PDU flow in the RB of source Or before whole first data are transferred in target RB, according to the determining target PDU some or all of in following manner flow：

According to the quantity for the PDU flow for needing to change mapping relations in each RB, by the need in the RB of the minimum number The PDU flow of mapping relations are changed as target PDU flow；

The data packet number in the PDU flow of change mapping relations determines target PDU flow as needed；

The complexity of the corresponding transmission states of PDU flow of change mapping relations determines target PDU flow as needed；

The corresponding priority of PDU flow of change mapping relations determines target PDU flow as needed；

The corresponding quality of service indexs of PDU flow of change mapping relations determine target PDU flow as needed.

Optionally, the processing module, is additionally operable to：

If the variation of the PDU flow and RB mapping relations of the user equipment is switched to by user equipment needs Caused by destination node, and the data processing equipment is source node, by target PDU flow some or all of in the RB of source After first data are transferred in target RB, data in the target RB are passed through between the destination node and the source node Forwarding data channel forward to the destination node.

Optionally, the processing module, is additionally operable to：

If the variation of the PDU flow and RB mapping relations of the user equipment is switched to by user equipment needs Caused by destination node, and the data processing equipment is source node, by target PDU flow some or all of in the RB of source After first data are transferred in target RB, the original SN status informations of the target RB are sent to the destination node, with And it will transfer to having distributed SN and having passed through air interface transmission but be not received by the AM data pair of confirmation message for the target RB The SN status informations answered are adjusted to retransmit, and the SN status informations after adjustment are sent to the destination node.

Optionally, the processing module, is additionally operable to：

If the variation of the PDU flow and RB mapping relations of the user equipment is switched to by user equipment needs Caused by destination node, and the data processing equipment is source node, by target PDU flow some or all of in the RB of source Before first data are transferred in target RB, the target PDU is determined according to the notice of the destination node received flow。

Optionally, the notice includes the target PDU flow；Or

Optionally, the processing module, is specifically used for：

If the notice includes the mapping relations of the PDU flow and RB of the user equipment after variation, according to following The target PDU flow are determined some or all of in mode：

The embodiment of the present invention is when the mapping relations of PDU flow and RB need to change, by target PDU flow in source The first data are transferred in target RB some or all of in RB, after the mapping relations of PDU flow and RB change, are protected The first data of some or all of target PDU flow in the RB of source have been transferred in target RB by card, after capable of using variation The corresponding target RB of target PDU flow transmit part or all of first data, to ensure number in mapping relations change procedure According to Lossless transport.

Description of the drawings

Fig. 1 is the network deployment structure figure one of 5G systems in background technology；

Fig. 2 is the network deployment structure figure two of 5G systems in background technology；

Fig. 3 is the network deployment structure figure three of 5G systems in background technology；

Fig. 4 is the method flow diagram that the embodiment of the present invention carries out data processing；

Fig. 5 is the structural schematic diagram of the first data processing equipment of the embodiment of the present invention；

Fig. 6 is the structural schematic diagram of second of data processing equipment of the embodiment of the present invention.

Specific implementation mode

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

As shown in figure 4, the method that the embodiment of the present invention carries out data processing includes：

Step 401, data processing equipment determine Packet Data Unit the stream PDU flow and radio bearer RB of user equipment Mapping relations needs change；

The first data some or all of in the RB of source turn by target PDU flow for step 402, the data processing equipment It moves in target RB；Wherein, the target PDU flow are the PDU flow for needing to change mapping relations.

Mapping relations needs of the data processing equipment of the embodiment of the present invention in the PDU flow and RB for determining user equipment When changing, the first data some or all of in changed target PDU flow source RB are transferred in target RB. Since the embodiment of the present invention is when the mapping relations of PDU flow and RB need to change, by target PDU flow in the RB of source Some or all of the first data be transferred in target RB, after the mapping relations of PDU flow and RB change, ensure will The first data of some or all of target PDU flow have been transferred in target RB in the RB of source, can use target after variation The corresponding target RB of PDU flow transmit part or all of first data, to ensure in mapping relations change procedure data without Damage transmission.

Wherein, the data processing equipment of the embodiment of the present invention is node or user equipment.

It is illustrated respectively below for different data processing equipments.

First part, data processing equipment are node.

The mapping relations needs of the PDU flow and RB of user equipment of the embodiment of the present invention change including but not limited to Following state：

A, user equipment is switched to destination node by source node, after user equipment is switched to destination node, user equipment The mapping relations of PDU flow and RB change.

B, the node of user equipment access needs the mapping relations to the PDU flow and RB of user equipment to reconfigure, Upon reconfiguration, the mapping relations of the PDU flow and RB of user equipment change.

It illustrates separately below.

One, user equipment is switched to destination node by source node, and the mapping relations of the PDU flow and RB of user equipment need It changes.

It being reported specifically, user equipment measures, source node determines that user equipment needs after being switched to destination node, to Destination node sends switching request message, and the PDU flow numbers of user equipment, each PDU are included in the switching request message The mapping relations of the PDU flow and RB of the QoS information of flow and the user equipment of source node configuration.

After destination node receives switching request message, according to the mapping algorithm of itself, it is determined as the user device configuration New PDU flow and RB mapping relations.

The source node of the embodiment of the present invention determines the target PDU according to the notice of the destination node received flow。

Specifically, following two ways, which may be used, in source node determines target PDU flow：

The notice for the destination node that mode one, source node receive includes target PDU flow.

That is, determining target PDU flow by destination node, and determining target PDU flow are notified to source node.

Destination node is according to user equipment after the mapping relations of the PDU flow and RB of user equipment before switching, and switching PDU flow and RB mapping relations, determine target PDU flow.

For example, being mapped to the same RB in source node PDU flow1 and PDU flow2, flow3 is mapped to another RB, And in destination node, PDU flow2 and PDU flow3 are mapped to the same RB, and PDU flow1 are mapped to another RB.At this point, both it is considered that the mapping relations of PDU flow2 change, using PDU flow2 as target PDU flow； It is considered that PDU flow2 are retained in original RB, PDU flow1 and PDU flow3 have changed mapping relations simultaneously, will PDU flow1 and PDU flow3 are as target PDU flow.

Optionally, the destination node is according to the determining target PDU flow some or all of in following manner：

Mode 1, the destination node, will be described according to the quantity for the PDU flow for needing to change mapping relations in each RB Need the PDU flow for changing mapping relations as target PDU flow in the RB of minimum number；

The data packet number that mode 2, the destination node are changed as needed in the PDU flow of mapping relations determines mesh Mark PDU flow；

Specifically, it would be desirable to change in the PDU flow of mapping relations the less PDU flow of data packet number as target PDU flow；

Mode 3, the destination node change the complexity of the corresponding transmission states of PDU flow of mapping relations as needed Degree determines target PDU flow；

Specifically, it would be desirable to change the smaller PDU of the complexity of the corresponding transmission states of PDU flow of mapping relations Flow is as target PDU flow；

The corresponding priority of PDU flow that mode 4, the destination node change mapping relations as needed determines target PDU flow；

Specifically, it would be desirable to change the lower PDU flow of the corresponding priority of PDU flow of mapping relations as target PDU flow；

The corresponding quality of service indexs of PDU flow that mode 5, the destination node change mapping relations as needed are true Set the goal PDU flow.

The notice for the destination node that mode two, source node receive includes the user equipment after variation The mapping relations of PDU flow and RB.

That is, destination node notifies the mapping relations of the PDU flow and RB of the user equipment after variation to source node, source Node according to the PDU flow of user equipment after the mapping relations of the PDU flow and RB of user equipment before switching, and switching with The mapping relations of RB determine target PDU flow.

Optionally, the source node is according to the determining target PDU flow some or all of in following manner：

Mode 1, the source node according to needed in each RB change mapping relations PDU flow quantity, by the number Measuring in minimum RB needs the PDU flow for changing mapping relations as target PDU flow；

The data packet number that mode 2, the source node are changed as needed in the PDU flow of mapping relations determines target PDU flow；

Mode 3, the source node change the complexity of the corresponding transmission states of PDU flow of mapping relations as needed Determine target PDU flow；

The corresponding priority of PDU flow that mode 4, the source node change mapping relations as needed determines target PDU flow；

The corresponding quality of service indexs of PDU flow that mode 5, the source node change mapping relations as needed determine Target PDU flow.

The source node of the embodiment of the present invention determines that target PDU flow are corresponding after determining target PDU flow Source RB and target RB；And the first data are transferred in target RB some or all of in the RB of source by target PDU flow.

Wherein, the corresponding source RB of target PDU flow are the corresponding RB of target PDU flow before mapping relations variation；Mesh It is the corresponding RB of target PDU flow after mapping relations variation to mark the corresponding target RB of PDU flow.

Data of the target PDU flow of the embodiment of the present invention in the RB of source are divided into the first data and the second data, and described First data are that downlink sends end data, and second data are uplink receiving end data.

(1), for the processing method of the first data.

The first data of target PDU of embodiment of the present invention flow include it is following in some or all of：

The data of unallocated sequence number SN in the target PDU flow；

Without the data of air interface transmission in the target PDU flow；

According to whether including source RB in the mapping relations of the PDU flow and RB of user equipment after variation, to data processing Method is illustrated respectively.

If the mapping relations of the PDU flow and RB of the user equipment after situation 1, variation include the source RB, described All the first data of target PDU flow described in the source RB are transferred in the target RB by data processing equipment.

If the mapping relations of the PDU flow and RB of the user equipment after situation 2, variation include the source RB, source section Part first data of the target PDU flow in the RB of source are transferred in target RB by point；

Specifically, the source node by the data of the unallocated SN of target PDU flow in the source RB and/or without The data of air interface transmission are transferred in the target RB.

If in the mapping relations of the PDU flow and RB of the user equipment after situation 3, variation not including the source RB, source All the first data of target PDU flow described in the source RB are transferred in the target RB by node.

Optionally, following manner may be used by the part of target PDU flow in the RB of source in the source node of the embodiment of the present invention Or all the first data are transferred in target RB：

Mode 1, source node are original according to arrival times of part or all of first data and the target RB's Part or all of first data are inserted into the legacy data of the target RB by the arrival time of data sequentially in time In.

Wherein, the legacy data of target RB is the PDU flow that other being buffered in target RB are mapped in target RB Data.

Specifically, since PDCP (packet data polymerized agreement) is that one Discard Timer of each data packet startup (loses Abandon timer), therefore the time that each data packet reaches PDCP layers can be obtained, source node is determined to need to be transferred to target RB In the first data after, when the first data for being transferred to target RB will be needed to be transferred to target RB, be transferred to mesh as needed It marks the arrival time of each data packet of the first data of RB, while being arrived according to each data packet of legacy data in target RB Up to the time, according to the arrival time more early principle positioned at queue more front, it would be desirable to which the first data for being transferred to target RB are inserted into Into the legacy data of the target RB.

Mode 2, source node use preset interleaved mode, and part or all of first data are inserted into the target In the legacy data of RB.

Specifically, it would be desirable to be transferred to target RB the first data and target RB in legacy data regard two data as Queue.The preset interleaved mode of the embodiment of the present invention can be：Need the first data for being transferred to target RB and the Central Plains target RB There is the alternately arranged mode of data；Or the length ratio according to Liang Ge data queues, determine that each two needs to be transferred to target The interval of the first data of RB.

For example, the data in 1,3,5 ... data bit are the first data for needing to be transferred to target RB, 0,2,4 ... numbers It is legacy data in target RB according to the data on position；Alternatively, the data in 0,3,6,9 ... data bit are to need to be transferred to target The first data of RB, the data in 1,2,4,5,7,8 ... data bit are legacy data in target RB.

Mode 3, source node are according to the legacy data of the priority and the target RB of part or all of first data Priority, part or all of first data are inserted into the original of the target RB according to the sequence of priority from high to low Have in data.

For example, target PDU flow are PDU flow 1, the original data of target RB are PDU flow 2, PDU flow 3 Data, and the priority of 1 data of PDU flow be higher than 3 data of PDU flow 2 and PDU flow priority, then exist When the first data for being transferred to target RB will be needed to be inserted into the legacy data of the target RB, it would be desirable to be transferred to target RB The first data be inserted in the position before the legacy data of target RB.

It should be noted that the first data of some or all of target PDU flow in the RB of source are transferred to mesh by above-mentioned three kinds It is to the embodiment of the present invention for example, target in the RB to be protected by source of the embodiment of the present invention to mark the mode in RB The mode that the first data of some or all of PDU flow are transferred in target RB is not limited to the example above, it is any can be by source The first data of some or all of target PDU flow are transferred to the mode in target RB suitable for the present invention in RB.

Part or all of first data being inserted into above-mentioned three kinds of modes in the target RB are that PDCP SDU (divide Group data aggregation protocol Service Data Unit) format data.

If desired part or all of first data being inserted into the target RB are the data of PDCP PDU formats When, before insertion, it is inserted into again after needing the data by PDCP PDU formats to revert to the data of PDCP SDU formats.

Due to needing the first data for being transferred to target RB to revert to PDCP SDU data, needed in target RB point With PDCP SN.So the SN status transfer (state forward) of target RB are carried out according to existing SN states, only Include the SN states of legacy data.For source RB, due in the RB of source there is still the SN states that may include target PDU flow, It then needs to will transfer to having distributed SN and having passed through air interface transmission but be not received by the AM numbers of confirmation message for the target RB It is adjusted to retransmit according to corresponding SN status informations, the PDCP layers of presence for allowing to receive gap (interval).

(2), for the processing method of the second data.

Mapping relations needs of the source node of the embodiment of the present invention in the PDU flow and RB for determining user equipment become After change, the second data of following two ways pair may be used and handle：

Mode 1 deletes corresponding discrete second data of target PDU flow described in the source RB；

Mode 2, by corresponding discrete second data of target PDU flow described in the source RB according to the SN of data The sequence of serial number, is sent to high level successively.

By target PDU flow, the first data some or all of in the RB of source are transferred to mesh to source node of the embodiment of the present invention Mark RB in after, by data in the target RB by the forwarding data channel between the destination node and the source node before Go to the destination node.

Two, the node of user equipment access needs the mapping relations to the PDU flow and RB of user equipment to re-match It sets, the mapping relations needs of the PDU flow and RB of user equipment change upon reconfiguration.

The node that the case where reconfiguring occurs mainly in user equipment access does not change, but mapping relations need to change In the case of, for example, may first be mapped on acquiescence RB without the corresponding RB of PDU flow when the data arrives, be subsequently After the PDU flow establish suitable special RB, then mapping relations are changed.Either during data packet is sent, root It is required according to algorithm, triggers the variation of mapping relations, can be carried out reconfiguring for mapping relations at this time.

The node of user equipment of embodiment of the present invention access is according to the mapping of the PDU flow and RB of user equipment before variation The mapping relations of the PDU flow and RB of user equipment, determine target PDU flow after relationship, and variation.

For example, before reconfiguring, node PDU flow1 and PDU flow2 are mapped to the same RB, and flow3 is mapped to separately One RB, and upon reconfiguration, PDU flow2 and PDU flow3 are mapped to the same RB, and PDU flow1 are mapped to Another RB.At this point, both it is considered that the mapping relations of PDU flow2 change, using PDU flow2 as target PDU flow；It is also assumed that PDU flow2 are retained in original RB, PDU flow1 and PDU flow3 have changed mapping simultaneously Relationship, using PDU flow1 and PDU flow3 as target PDU flow.

Optionally, node is according to the determining target PDU flow some or all of in following manner：

Mode 1, the node according to needed in each RB change mapping relations PDU flow quantity, by the quantity Need the PDU flow for changing mapping relations as target PDU flow in minimum RB；

The data packet number that mode 2, the node are changed as needed in the PDU flow of mapping relations determines target PDU flow；

The complexity that mode 3, the node change the corresponding transmission states of PDU flow of mapping relations as needed is true Set the goal PDU flow；

The corresponding priority of PDU flow that mode 4, the node change mapping relations as needed determines target PDU flow；

The corresponding quality of service indexs of PDU flow that mode 5, the node change mapping relations as needed determine mesh Mark PDU flow.

The node of the embodiment of the present invention determines the corresponding sources target PDU flow after determining target PDU flow RB and target RB；And the first data are transferred in target RB some or all of in the RB of source by target PDU flow.

It, can be in a manner of some realizations since reconfiguring for mapping relations is happened at the same intra-node Come lower reconfigure may caused by influence.

Mode one, node are after the completion of determining total data processing of the target PDU flow in the RB of source, to described The mapping relations of the PDU flow and RB of user equipment are reconfigured.

Mode two, node are determining that total data processing of the target PDU flow in the RB of source is unfinished, to described The mapping relations of the PDU flow and RB of user equipment are reconfigured.

For mode two, the embodiment of the present invention illustrates the method for data processing according to data type difference respectively.

(1), for the processing method of the first data.

The data of unallocated sequence number SN in the target PDU flow；

Without the data of air interface transmission in the target PDU flow；

If the mapping relations of the PDU flow and RB of the user equipment after situation 1, variation include the source RB, node All the first data of target PDU flow described in the source RB are transferred in the target RB.

If the mapping relations of the PDU flow and RB of the user equipment after situation 2, variation include the source RB, node Part first data of the target PDU flow in the RB of source are transferred in target RB；

Specifically, node is passed by the data of the unallocated SN of target PDU flow in the source RB and/or without eating dishes without rice or wine Defeated data are transferred in the target RB.

If not including the source RB in the mapping relations of the PDU flow and RB of the user equipment after situation 3, variation, save All the first data of target PDU flow described in the source RB are transferred in the target RB by point.

Optionally, the node of the embodiment of the present invention may be used following manner by the part of target PDU flow in the RB of source or All the first data are transferred in target RB：

Mode 1, node are according to the arrival time of part or all of first data and original number of the target RB According to arrival time, part or all of first data are inserted into the legacy data of the target RB sequentially in time In.

Specifically, since PDCP (packet data polymerized agreement) is that one Discard Timer of each data packet startup (loses Abandon timer), therefore the time that each data packet reaches PDCP layers can be obtained, node is determined to need to be transferred in target RB The first data after, when the first data for being transferred to target RB will be needed to be transferred to target RB, be transferred to target as needed The arrival time of each data packet of the first data of RB, while according to the arrival of each data packet of legacy data in target RB Time, according to the arrival time more early principle positioned at queue more front, it would be desirable to which the first data for being transferred to target RB are inserted into In the legacy data of the target RB.

Mode 2, node use preset interleaved mode, and part or all of first data are inserted into the target RB Legacy data in.

Mode 3, node are according to the priority of part or all of first data and the legacy data of the target RB Part or all of first data are inserted into the original of the target RB by priority according to the sequence of priority from high to low In data.

Optionally, the node of user equipment access needs the mapping relations to the PDU flow and RB of user equipment to carry out weight Configuration, after the mapping relations needs of the PDU flow and RB of user equipment change upon reconfiguration, the node is by institute The whole RB or the changed RB of mapping relations for stating user equipment carry out reset operation.

For example, user equipment is corresponding with 4 RB altogether, wherein the mapping relations of 2 RB are changed, then it can be primary Property resets 4 RB, can also reset wherein changed 2 RB.

Specifically, it would be desirable to which the RB corresponding PDCP, RLC, MAC and PHY resetted is restored to init state.

It should be noted that the changed RB of the whole RB or mapping relations of the user equipment is carried out determining When resetting operation, whether includes source RB in the mapping relations of the PDU flow and RB of the user equipment after no matter changing, be required to All the first data of target PDU flow described in the RB of source are transferred in the target RB.

(2), for the processing method of the second data.

Mapping relations needs of the node of the embodiment of the present invention in the PDU flow and RB for determining user equipment change Later, the second data of following two ways pair may be used to handle：

Second part, data processing equipment are user equipment.

User equipment determines that the mapping relations needs of PDU flow and RB change according to the notice of the node received.

Wherein, the PDU flow and RB of user equipment of the embodiment of the present invention mapping relations needs change including but not It is limited to following state：

For situation a, specific switching flow is：User equipment, which measures, to be reported, and source node determines that user equipment needs After being switched to destination node, switching request message is sent to destination node, includes user equipment in the switching request message The PDU flow and RB of the user equipment of PDU flow numbers, the QoS information of each PDU flow and source node configuration Mapping relations.

Optionally, if destination node determination need by the changed RB of whole RB or mapping relations of user equipment into Row resets operation, then the information of the RB resetted will be needed to be placed in switching command and be sent to source node；

Source node notifies the switching command that destination node is sent to user equipment；

The user equipment is after receiving the notice of source node, by the whole RB or mapping relations of the user equipment Changed RB carries out reset operation.

For situation b, optionally, if the node determination of user equipment access needs whole RB by user equipment or reflects It penetrates the changed RB of relationship and carries out reset operation, then the information of the RB resetted will be needed to notify to user equipment；

The user equipment sends out the whole RB or mapping relations of the user equipment after receiving the notice of node The RB for changing carries out reset operation.

Specifically, it would be desirable to the RB corresponding PDCP, RLC (wireless link control protocol data cell) resetted, MAC (media access control protocol data unit) and PHY (physical layer) are restored to init state.

In the mapping relations for needing to switch to PDU flow and RB that destination node causes user equipment due to user equipment When changing, source node after the mapping relations needs for the PDU flow and RB for determining user equipment change, use by notice The mapping relations needs of family equipment PDU flow and RB change；And the target PDU flow of change mapping relations will be needed It notifies to user equipment.

It should be noted that source node determines that the mode of target PDU flow refers to the above, it is no longer superfluous in detail herein It states.

It carries out reconfiguring the PDU flow and RB that cause user equipment in the node accessed due to user equipment When mapping relations change, user equipment access node the PDU flow and RB for determining user equipment mapping relations need After changing, the mapping relations needs of notifying user equipment PDU flow and RB change；And it will need to change to reflect The target PDU flow for penetrating relationship are notified to user equipment.

It should be noted that the node of user equipment access determines that the mode of target PDU flow refers to the above, This is no longer described in detail.

The user equipment of the embodiment of the present invention determines the target after receiving node notice target PDU flow PDU flow corresponding source RB and target RB；And the first data are transferred to some or all of in the RB of source by target PDU flow In target RB.

Data of the target PDU flow of the embodiment of the present invention in the RB of source are divided into the first data and the second data, and described First data are that uplink sends end data, and second data are downlink reception end data.

The embodiment of the present invention illustrates the method for data processing according to data type difference, user equipment respectively.

(1), for the processing method of the first data.

The data of unallocated sequence number SN in the target PDU flow；

Without the data of air interface transmission in the target PDU flow；

If the mapping relations of the PDU flow and RB of the user equipment after situation 1, variation include the source RB, user All the first data of target PDU flow described in the source RB are transferred in the target RB by equipment.

If the mapping relations of the PDU flow and RB of the user equipment after situation 2, variation include the source RB, user Part first data of the target PDU flow in the RB of source are transferred in target RB by equipment；

Specifically, user equipment is by the data of the unallocated SN of target PDU flow in the source RB and/or without sky The data of port transmission are transferred in the target RB.

If not including the source RB in the mapping relations of the PDU flow and RB of the user equipment after situation 3, variation, use All the first data of target PDU flow described in the source RB are transferred in the target RB by family equipment.

Optionally, following manner may be used by the portion of target PDU flow in the RB of source in the user equipment of the embodiment of the present invention Divide or all the first data are transferred in target RB：

Mode 1, user equipment are according to the arrival time of part or all of first data and the original of the target RB There is the arrival time of data, part or all of first data are inserted into original number of the target RB sequentially in time In.

Specifically, since PDCP (packet data polymerized agreement) is that one Discard Timer of each data packet startup (loses Abandon timer), therefore the time that each data packet reaches PDCP layers can be obtained, user equipment is determined to need to be transferred to target After the first data in RB, when the first data for being transferred to target RB will be needed to be transferred to target RB, it is transferred to as needed The arrival time of each data packet of the first data of target RB, while according to each data packet of legacy data in target RB Arrival time, according to the arrival time more early principle positioned at queue more front, it would be desirable to which the first data for being transferred to target RB are inserted Enter into the legacy data of the target RB.

Mode 2, user equipment use preset interleaved mode, and part or all of first data are inserted into the mesh In the legacy data for marking RB.

Mode 3, user equipment are according to original number of the priority and the target RB of part or all of first data According to priority, part or all of first data are inserted into the target RB's according to the sequence of priority from high to low In legacy data.

(2), for the processing method of the second data.

Mapping of the user equipment of the embodiment of the present invention in the PDU flow and RB of the user equipment for receiving node notice After relationship needs change, the second data of following two ways pair may be used and handle：

Based on same inventive concept, a kind of data processing equipment is additionally provided in the embodiment of the present invention, due to the equipment solution Certainly the principle of problem is similar to progress of the embodiment of the present invention method of data processing, therefore the implementation of the equipment may refer to method Implementation, overlaps will not be repeated.

As shown in figure 5, the data processing equipment of the embodiment of the present invention includes：

Determining module 501, for determining that the Packet Data Unit stream PDU flow and radio bearer RB of user equipment reflects Relationship needs are penetrated to change；

Processing module 502, for the first data to be transferred to target some or all of in the RB of source by target PDU flow In RB；

The data of unallocated sequence number SN in the target PDU flow；

Without the data of air interface transmission in the target PDU flow；

Optionally, the processing module 502, is specifically used for：

Optionally, the determining module 501, is additionally operable to：

Optionally, the processing module 502, is specifically used for：

Optionally, the determining module 501, is additionally operable to：

The determining module 501, is specifically used for：

The target PDU flow are determined according to following manner：

Optionally, the processing module 502, is additionally operable to：

Optionally, the notice includes the target PDU flow；Or

Optionally, if the notice includes the mapping relations of the PDU flow and RB of the user equipment after variation, The processing module 502, is specifically used for：

According to the determining target PDU flow some or all of in following manner：

Optionally, if the determining module 501, the processing module 502 are located in the same entity, the entity is Node or user equipment.

Fig. 6 provide a kind of determining module 501, processing module 502 the same entity example.

As shown in fig. 6, a kind of data processing equipment of the embodiment of the present invention includes：

Processor 601, for determining that the mapping relations needs of the PDU flow and RB of user equipment change；By target PDU flow first data some or all of in the RB of source are transferred in target RB；Wherein, the target PDU flow are to need Change the PDU flow of mapping relations.

Transceiver 602, for sending and receiving data under the control of processor 601.

The data of unallocated sequence number SN in the target PDU flow；

Without the data of air interface transmission in the target PDU flow；

Optionally, the processor 601, is specifically used for：

Optionally, the processor 601, is additionally operable to：

Optionally, the processor 601, is specifically used for：

Optionally, the processor 601, is additionally operable to：

Optionally, if the data processing equipment is user equipment, the processor 601 is specifically used for：

The notice of the node received according to the transceiver 602 determines that the mapping relations of PDU flow and RB need to occur Variation；

The processor 601, is specifically used for：

The target PDU flow are determined according to following manner：

The notice of the node received according to the transceiver 602 determines the target PDU flow.

Optionally, the processor 601, is additionally operable to：

Optionally, the notice includes the target PDU flow；Or

Optionally, the processor 601, is specifically used for：

In figure 6, bus architecture (being represented with bus 600), bus 600 may include the bus of any number of interconnection And bridge, the memory that bus 600 will include the one or more processors represented by processor 601 and memory 604 represents Various circuits link together.Bus 600 can also be by each of such as peripheral equipment, voltage-stablizer and management circuit or the like Other circuits of kind link together, and these are all it is known in the art, and therefore, it will not be further described herein. Bus interface 603 provides interface between bus 600 and transceiver 602.Transceiver 602 can be an element, can also be Multiple element, such as multiple receivers and transmitter, provide the unit for being communicated over a transmission medium with various other devices. The data handled through processor 601 are transmitted on the radio medium by antenna 605, and further, antenna 605 also receives data And transfer data to processor 601.

Processor 601 is responsible for bus 600 and common processing, can also provide various functions, including timing, periphery Interface, voltage adjusting, power management and other control functions.And memory 604 can be used to store processor 601 and hold Used data when row operation.

Optionally, processor 601 can be CPU (centre buries device), ASIC (Application Specific Integrated Circuit, application-specific integrated circuit), (Field-Programmable Gate Array, scene can compile FPGA Journey gate array) or CPLD (Complex Programmable Logic Device, Complex Programmable Logic Devices).

Several examples are set forth below, the solution of the present invention is described in detail.

Embodiment 1：UE needs to be switched to destination node from source node, and the mapping of the PDU flow and RB of UE after handover is closed System needs to change.

Target PDU flow are that the corresponding source RB of PDU flow1, PDU flow1 are RB1, and target RB is RB2, and is changed Do not include source RB1 in the mapping relations of the PDU flow and RB of UE afterwards.

Source node is sent in the switching request message of destination node during switching preparation, can carry UE and have altogether How many PDU flow and corresponding QoS information, can also carry the mapping relations of PDU flow and RB；Destination node connects Switching request message is received, is received according to the PDU flow of UE, and according to the mapping algorithm of itself, completes to receive successful The mapping of PDU flow to target RB, according to these as a result, the original PDU flow for being mapped to RB1 are changed and are mapped to RB2, and RB1 is deleted due to no other data, that is to say, that after destination node is received and mapping finishes, RB numbers originally Reduce one, destination node is sent to the forwarding data access of source node and is also allocated according to new RB numbers at this time.

One, source node side.

Source node learns RB number of variations and PDU flow mapping relations is also sent out in the switching result for receiving destination node Changing, then source node is needed according to new RB numbers, and the PDU flow that include in each RB readjust each mesh The state variable for marking RB corresponding forwarding data and forward, for the PDU flow1 of mapping relations variation occur, specifically such as Under：

End data is sent for the downlink of PDU flow1, if it is AM data, then for having continuously received opposite end ARQ (Automatic Repeat Request, arq), the ACK (numbers of (Acknowledgement confirms character) It according to transmission success is then thought, can delete, for being transmitted from first but be not received by the data of opposite end ARQ, ACK and open There are two types of modes for data after beginning：

1, since transmitting first but is not received by the data of opposite end ARQ, ACK, data all thereafter turn It moves on in RB2, is forwarded to destination node and is retransmitted；

2, since transmitting first but is not received by the data of opposite end ARQ, ACK, if data thereafter are It is received to have arrived opposite end ARQ, ACK, then it is assumed that transmission success does not need forward, for removing other numbers after these data According to being transferred in RB2 in sequence, it is forwarded to destination node and is retransmitted；

End data is sent for the downlink of PDU flow1, if it is UM (no affirmation mode) data, then for having sent The data crossed are deleted, and since the data that first is not transmitted across, are sequentially transferred in RB2, and destination node progress is forwarded to It retransmits；

For the uplink receiving end data of PDU flow1, if AM data, for the part that consecutive order receives, directly It is sequentially submitted to high level, for the out of order data received, there are two types of processing modes：

1, from first it is out of order unwrap the beginning, delete all out of order packets, wait and stay in destination node new re-transmission or transmission；

2, out of order to be sent to high level, the high-rise sequence of waiting by out of order packet according to opposite sequencing；

If UM data, by all data packets being properly received according to sequencing, it is sent to high level successively, centre allows to have Notch.

It should be noted that need the data of the PDU flow1 being transferred in RB2, accordingly in provide Insertion method carries out the transfer of data, and in this not go into detail.

The embodiment of the present invention, will be new after the completion of the data for the PDU flow1 for being transferred to RB2 will be needed to shift in RB1 RB2 queues in sequence forward to destination node.

The state forward of AM data and UM data can be carried out according to existing available data of the rule based on RB1, be needed It is noted that due to needing to be added after being from the data of the RB1 PDU flow1 for being transferred to RB2, before state need not being appeared in In turning；

For destination node, after reception state forward and data forwarding, according to existing flow carry out data processing and Feedback of status, subsequent processing need not distinguish between the data and legacy data for the PDU flow1 that RB2 is transferred to from RB1, by its according to Sequential processes.PDCP feedback of status carries out as usual, wherein need not include the number for the PDU flow1 for being transferred to RB2 from RB1 It is believed that breath.

Two, the sides UE.

The RB information after variation and the RB and PDU after variation can be carried in the switching command that source node is sent to UE The mapping relations of flow.For example, after UE obtains the information, determine that PDU flow mappings have made RB2 by RB1, and RB1 is thorough It deletes, UE executes following operation at this time：

End data is sent for the uplink of PDU flow1, if it is AM data, then for having continuously received opposite end The data of ARQ, ACK then think transmission success, can delete；For transmitted from first but be not received by opposite end ARQ, The data of ACK start after data there are two types of mode：

1, since transmitting first but is not received by the data of opposite end ARQ, ACK, data all thereafter are equal It is transferred in RB2, is retransmitted；

2, since transmitting first but is not received by the data of opposite end ARQ, ACK, if data thereafter are It is received to have arrived opposite end ARQ, ACK, then it is assumed that transmission success need not be transferred in RB2, for removing except these data Other data are transferred in RB2 in sequence, are retransmitted；

Then the data being transmitted across are deleted if it is UM data for the uplink transmission end data of PDU flow1 It removes, since the data that first is not transmitted across, is sequentially transferred in RB2, is retransmitted；

For the downlink reception end data of PDU flow1, if AM data, for the part that consecutive order receives, directly It is sequentially submitted to high level, for the out of order data received, there are two types of processing methods：

If UM data, by all data packets being properly received according to sequencing, it is sent to high level successively, centre allows to have Notch；

It should be noted that need the data for being transferred to the PDU flow1 in RB2 from RB1, accordingly in give The insertion method gone out carries out the transfer of data, and in this not go into detail.

The PDCP feedback of status of the sides UE carries out as usual, wherein need not include the number that RB1 is transferred to the PDU flow1 of RB2 It is believed that breath.

Embodiment 2：UE needs to be switched to destination node from source node, and the mapping of the PDU flow and RB of UE after handover is closed System needs to change.

Target PDU flow are that the corresponding source RB of PDU flow1, PDU flow1 are RB1, and target RB is RB2, and is changed The mapping relations of the PDU flow and RB of UE afterwards include source RB1.

It should be noted that the mode of data processing may be used in embodiment 1 in the 2 node side of embodiment and the sides UE Mode can also use following manner：

One, source node side.

Since PDU flow1 are mapped to by original RB1 updates on RB2, but for the PDU flow1, send The data at end are divided into two parts：

A part is the allocated SN and the data Jing Guo air interface transmission, this partial data is not due to confirming or not having Confirmation is continuously sequentially received according to SN, therefore is still in transmission caching and stores, it may be necessary to later retransmission；For this portion For divided data, due to being assigned with SN in RB1 and have passed through air interface transmission, in order to ensure that the SN that RB1 eats dishes without rice or wine is continuous Property, this partial data needs continue to transmit in RB1；

Another part is not distribute SN or without the data Jing Guo air interface transmission, there are two types of possible for this partial data Processing mode, one kind is to continue with to be continued to transmit in RB1, and another kind is to be transferred in RB2 to transmit；

For destination node, state and data forwarding from source node are received, weight is carried out according to existing rule Biography and transmission process, it should be noted that the data for having already passed through the PDU flow1 of air interface transmission can be after RB1 be continued to complete Continuous process.For the data of the PDU flow1 not Jing Guo air interface transmission, destination node can also change rule, i.e., by the portion Divide the data of PDU flow1 to be transferred in RB2 from RB1 and is transmitted processing.

In addition, for destination node, since it is desired that ensureing the data continuity of PDU flow and sequentially submitting, therefore For PDU flow before the data of new RB2 start transmission, it may be necessary to certain transmission pending operation is carried out, only etc. The data of the PDU flow1 of RB1 before it after transmission success, could start the number of the PDU flow1 in RB2 According to transmission.Influence is not exposed to for the data of other PDU flow in RB2, it can be with normal transmission.In handoff procedure, shape is sent State report is fed back according to existing state, and the data information of the PDU flow1 of RB2 is transferred to from RB1 in RB1.

Two, the sides UE.

The RB information after variation and the RB and PDU after variation can be carried in the switching command that source node is sent to UE The mapping relations of flow.For example, after UE obtains the information, determine that PDU flow mappings have made RB2 by RB1, and RB1 is still deposited In the following operation of UE execution at this time：

For PDU flow1 uplink send end data, if it is AM data, RB1 have passed through air interface transmission or Person is assigned with the data of the change of SN, is continually maintained in RB1 and transmits, and the data of the SN of other non-air interface transmissions or distribution can To be transmitted in former RB1, new RB2 can also be transferred to and be transmitted.

It should be noted that in RB2 the data of PDU flow1 either by RB1 transfers Lai or follow-up business source to The new data reached, these data are all the data being located in RB1 after the data of PDU flow1, need elder generation in transmission process It hangs up, wait for the data transmission success of PDU flow1 in RB1 and then is transmitted, while other PDU flow in RB2 Transmission it is unaffected, can as usual carry out.

For UM, it can be deleted in the data of the RB1 PDU flow1 transmitted, other numbers not transmitted It is transmitted according to being transferred directly in RB2；

For the downlink reception end data of UE, the data for the PDU flow1 for including in the RB1 discontinuously received are still in RB1 In handled, be retransmitted packet until receiving gap (interval) and fill up, can sequentially be submitted to high level；

In handoff procedure, status report is fed back according to existing state, and the PDU of RB2 is transferred to from RB1 The data information of flow1 is in RB1.

Embodiment 3：The node of UE access reconfigures the PDU flow and RB mapping relations of the UE；Reconfigure rear UE PDU flow and RB mapping relations needs change.

Target PDU flow are that the corresponding source RB of PDU flow1, PDU flow1 are RB1, and target RB is RB2, and is re-matched The mapping relations of the PDU flow and RB of the UE postponed include source RB1.

The case where service node that the case where reconfiguring occurs mainly in UE does not change, but mapping relations need variation Under, such as may first be mapped on acquiescence RB without the corresponding RB of PDU flow when the data arrives, be subsequently the PDU After flow establishes suitable special RB, then mapping relations are changed.Either during data packet is sent, according to algorithm It is required that triggering the variation of mapping relations, reconfiguring for mapping relations can be carried out at this time.

Mode one, node are after the completion of determining total data processing of the target PDU flow in the RB of source, to described The mapping relations of the PDU flow and RB of UE are reconfigured.

Mode two, node are determining that total data processing of the target PDU flow in the RB of source is unfinished, to UE's The mapping relations of PDU flow and RB are reconfigured.

For mode two, node side and the sides UE are as follows to the mode of data processing：

For the data of the PDU flow1 transmitted on RB1, it is continually maintained on RB1 and completes all transmission；

For in RB1 without air interface transmission or distribute SN the PDU flow1 data, by the partial data by RB1 is transferred in RB2；

In order to ensure sequentially submitting for data, the data on RB1 of the PDU flow1 should be first transmitted, then be opened Beginning starts the transmission of data on RB2 of the PDU flow1.

Embodiment 4：The node of UE access reconfigures the PDU flow and RB mapping relations of the UE；Reconfigure rear UE PDU flow and RB mapping relations needs change.

Node is after the mapping relations needs for the PDU flow and RB for determining UE change, using the method all resetted The mapping relations of the PDU flow and RB of UE are reconfigured.

It should be noted that the corresponding all RB of UE can be carried out reset operation by node, it can also be only corresponding to UE The changed RB of mapping relations carries out reset operation.

Correspondingly, node will need the RB information resetted to notify to UE, so that the RB that UE resets needs carries out reset behaviour Make.

It is specially that the corresponding PDCP of RB, RLC, MAC and PHY are restored to init state to reset operation.

When determining that needing RB corresponding to UE to carry out reset operates, for node side and the sides UE, following side may be used Formula handles data：

For transmission end datas of the PDU flow1 in RB1, data reservation is not sent out, the AM data having had sent and do not have Have and receive confirmation, there are following several selections：

1, it is not received by the data of ACK confirmations from first, thinks to send unsuccessful, it is sequentially retained in transmission In queue, waits for and being retransmitted after resetting；

2, the data being transmitted across think to terminate, delete the data, need not carry out subsequent re-operate；

3, the data confirmed for ACK has been received, it is believed that terminate, can delete, confirm for being not received by ACK Data, be retained in transmit queue in order, wait for reset after retransmit；

For reception end datas of the PDU flow1 in RB1, usually out of order data, also there are two selections：

1, non-continuous data is deleted；

2, by discontinuous according to relative ranks high level is sent to after unpacking.

It should be noted that for the data for the PDU flow1 being retained in RB1, need to be transferred in RB2, and press The transfer of data is carried out according to the insertion method provided in the above, in this not go into detail.

Embodiment 5：UE needs to be switched to destination node from source node, and the mapping of the PDU flow and RB of UE after handover is closed System needs to change.

Specifically switching flow is：

UE, which is measured, to be reported, and source node determines that UE needs after being switched to destination node, and sending switching to destination node asks Message is sought, the PDU flow numbers of UE, the QoS information of each PDU flow and source section are included in the switching request message The mapping relations of the PDU flow and RB of the UE of point configuration.

After destination node receives switching request message, according to the mapping algorithm of itself, it is determined as the new of UE configurations The mapping relations of PDU flow and RB.

Also, destination node determination needs the changed RB of whole RB or mapping relations of UE carrying out reset operation, To then the information of the RB resetted be needed to be placed in switching command and is sent to source node；The switching that source node sends destination node is ordered Enable notice to UE；UE is after receiving the notice of source node, by the changed RB of whole RB or mapping relations of the UE Carry out reset operation.

For source node side and the sides UE, following manner may be used, data are handled：

1, non-continuous data is deleted；

Also, after data of the PDU flow1 in RB1 are transferred in RB2 by source node, data in RB2 are passed through into mesh Forwarding data channel forward between node and source node is marked to destination node.

Above by reference to showing according to the method, apparatus (system) of the embodiment of the present application and/or the frame of computer program product Figure and/or flow chart describe the application.It should be understood that can realize that block diagram and or flow chart is shown by computer program instructions The combination of one block of figure and the block of block diagram and or flow chart diagram.These computer program instructions can be supplied to logical With computer, the processor of special purpose computer and/or other programmable data processing units, to generate machine so that via meter The instruction that calculation machine processor and/or other programmable data processing units execute creates for realizing block diagram and or flow chart block In specified function action method.

Correspondingly, the application can also be implemented with hardware and/or software (including firmware, resident software, microcode etc.).More Further, the application can take computer usable or the shape of computer program product on computer readable storage medium Formula has the computer realized in the medium usable or computer readable program code, to be made by instruction execution system It is used with or in conjunction with instruction execution system.In the present context, computer can be used or computer-readable medium can be with It is arbitrary medium, can includes, store, communicating, transmitting or transmitting program, is made by instruction execution system, device or equipment With, or instruction execution system, device or equipment is combined to use.

Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art God and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies Within, then the present invention is also intended to include these modifications and variations.

Claims

1. a kind of method carrying out data processing, which is characterized in that this method includes：

Data processing equipment determines that the mapping relations of the Packet Data Unit stream PDU flow and radio bearer RB of user equipment need It changes；

By target PDU flow, the first data some or all of in the RB of source are transferred in target RB the data processing equipment；

2. the method as described in claim 1, which is characterized in that during the first data of the target PDU flow include following Partly or entirely：

The data of unallocated sequence number SN in the target PDU flow；

Without the data of air interface transmission in the target PDU flow；

SN has been distributed in the target PDU flow and is passed through air interface transmission but is not received by the affirmation mode of confirmation message AM data；

SN has been distributed in the target PDU flow from first and has passed through air interface transmission but is not received by confirmation message Whole AM data after AM data.

3. method as claimed in claim 2, which is characterized in that if variation after user equipment PDU flow and RB mapping Relationship includes the source RB, then the data processing equipment all first counting target PDU flow described in the source RB According to being transferred in the target RB.

4. method as claimed in claim 2, which is characterized in that if variation after user equipment PDU flow and RB mapping Relationship includes the source RB, and part first data of the target PDU flow in the RB of source are transferred to by the data processing equipment In target RB, including：

The data processing equipment is passed by the data of the unallocated SN of target PDU flow in the source RB and/or without eating dishes without rice or wine Defeated data are transferred in the target RB.

5. method as claimed in claim 2, which is characterized in that if variation after user equipment PDU flow and RB mapping In relationship include the source RB, then the data processing equipment by target PDU flow described in the source RB all first Data are transferred in the target RB.

6. the method as described in claim 3 or 5, which is characterized in that the data processing equipment is in the PDU for determining user equipment After the mapping relations needs of flow and RB change, further include：

The changed RB of whole RB or mapping relations of the user equipment is carried out reset behaviour by the data processing equipment Make.

7. the method as described in claim 1, which is characterized in that the data processing equipment is by target PDU flow in the RB of source Part or all of first data are transferred in target RB, including：

The data processing equipment is original according to arrival times of part or all of first data and the target RB's Part or all of first data are inserted into the legacy data of the target RB by the arrival time of data sequentially in time In；Or

The data processing equipment uses preset interleaved mode, and part or all of first data are inserted into the target In the legacy data of RB；Or

The data processing equipment is according to the legacy data of the priority and the target RB of part or all of first data Priority, part or all of first data are inserted into the original of the target RB according to the sequence of priority from high to low Have in data.

8. the method for claim 7, which is characterized in that described part or all of first be inserted into the target RB Data are the data of packet data polymerized protocol service data cell PDCP SDU formats.

9. the method as described in claim 1, which is characterized in that the data processing equipment is in the PDU for determining user equipment After the mapping relations needs of flow and RB change, further include：

The data processing equipment deletes corresponding discrete second data of target PDU flow described in the source RB；Or

The data processing equipment is by corresponding discrete second data of target PDU flow described in the source RB according to number According to SN serial numbers sequence, be sent to high level successively.

10. Claims 1 to 5,7~9 it is any as described in method, which is characterized in that if the data processing equipment be node, First data are that downlink sends end data, and second data are uplink receiving end data；

If the data processing equipment is user equipment, first data are that uplink sends end data, and second data are Downlink reception end data.

11. method as claimed in claim 10, which is characterized in that if the data processing equipment is user equipment, the use Family equipment determines that the mapping relations needs of the PDU flow and RB of user equipment change, including：

The user equipment determines that the mapping relations needs of PDU flow and RB change according to the notice of the node received；

12. method as claimed in claim 10, which is characterized in that the PDU flow of the user equipment and RB mapping relations Variation is caused by the node accessed by the user equipment is reconfigured, and the data processing equipment is section Point, this method further include：

The node is after the completion of determining total data processing of the target PDU flow in the RB of source, to the user equipment The mapping relations of PDU flow and RB reconfigured.

13. method as claimed in claim 10, which is characterized in that the PDU flow of the user equipment and RB mapping relations Variation is caused by the node accessed by the user equipment is reconfigured, and the data processing equipment is section Point, the node before the first data are transferred in target RB some or all of in the RB of source, also wrap target PDU flow It includes：

The node, will be in the RB of the minimum number according to the quantity for the PDU flow for needing to change mapping relations in each RB Need change mapping relations PDU flow as target PDU flow；

The corresponding quality of service indexs of PDU flow that the node changes mapping relations as needed determine target PDU flow.

14. method as claimed in claim 10, which is characterized in that the PDU flow of the user equipment and RB mapping relations Variation is to be needed caused by switching to destination node by the user equipment, and the data processing equipment is source node, the party Method further includes：

The source node, will by target PDU flow after the first data are transferred in target RB some or all of in the RB of source Data pass through the forwarding data channel forward between the destination node and the source node to the target in the target RB Node.

15. method as claimed in claim 10, which is characterized in that the PDU flow of the user equipment and RB mapping relations Variation is to be needed caused by switching to destination node by the user equipment, and the data processing equipment is source node, the party Method further includes：

The source node, will by target PDU flow after the first data are transferred in target RB some or all of in the RB of source The original SN status informations of the target RB are sent to the destination node, and will transfer to the distribution SN of the target RB And by air interface transmission but it is not received by the corresponding SN status informations of AM data of confirmation message and is adjusted to retransmit, And the SN status informations after adjustment are sent to the destination node.

16. method as claimed in claim 10, which is characterized in that the PDU flow of the user equipment and RB mapping relations Variation is to be needed caused by switching to destination node by the user equipment, and the data processing equipment is source node, described Target PDU flow before the first data are transferred in target RB some or all of in the RB of source, further include by source node：

17. the method described in claim 16, which is characterized in that the notice includes the target PDU flow；Or

18. method as claimed in claim 17, which is characterized in that if the notice includes the user equipment after variation PDU flow and RB mapping relations, the source node is according to determining the target PDU some or all of in following manner flow：

The source node according to needed in each RB change mapping relations PDU flow quantity, by the RB of the minimum number In need change mapping relations PDU flow as target PDU flow；

The complexity that the source node changes the corresponding transmission states of PDU flow of mapping relations as needed determines target PDU flow；

19. a kind of data processing equipment, which is characterized in that including：

Determining module, for determining that the mapping relations of the Packet Data Unit stream PDU flow and radio bearer RB of user equipment need It changes；

Processing module, for the first data to be transferred in target RB some or all of in the RB of source by target PDU flow；

20. equipment as claimed in claim 19, which is characterized in that during the first data of the target PDU flow include following Some or all of：

The data of unallocated sequence number SN in the target PDU flow；

Without the data of air interface transmission in the target PDU flow；

21. equipment as claimed in claim 20, which is characterized in that the processing module is specifically used for：

If the mapping relations of the PDU flow and RB of the user equipment after variation include the source RB, by institute in the source RB All the first data for stating target PDU flow are transferred in the target RB.

22. equipment as claimed in claim 20, which is characterized in that the processing module is specifically used for：

If the mapping relations of the PDU flow and RB of the user equipment after variation include the source RB, by mesh in the source RB It marks the data of the unallocated SN of PDU flow and/or is transferred in the target RB without the data of air interface transmission.

23. equipment as claimed in claim 20, which is characterized in that the processing module is specifically used for：

It, will be in the source RB if in the mapping relations of the PDU flow and RB of the user equipment after variation not including the source RB All the first data of the target PDU flow are transferred in the target RB.

24. the equipment as described in claim 21 or 23, which is characterized in that the determining module is additionally operable to：

After the mapping relations needs for the PDU flow and RB for determining user equipment change, by the complete of the user equipment Portion RB or the changed RB of mapping relations carry out reset operation.

25. equipment as claimed in claim 19, which is characterized in that the processing module is specifically used for：

According to the arrival time of part or all of first data and the arrival time of the legacy data of the target RB, Part or all of first data are inserted into the legacy data of the target RB sequentially in time；Or

Using preset interleaved mode, part or all of first data are inserted into the legacy data of the target RB； Or

According to the priority of the priority of part or all of first data and the legacy data of the target RB, according to preferential Part or all of first data are inserted into the legacy data of the target RB by the sequence of grade from high to low.

26. equipment as claimed in claim 25, which is characterized in that described part or all of be inserted into the target RB One data are the data of packet data polymerized protocol service data cell PDCP SDU formats.

27. equipment as claimed in claim 19, which is characterized in that the determining module is additionally operable to：

After determining that the mapping relations needs of the PDU flow and RB of user equipment change, by target described in the source RB Corresponding discrete second data of PDU flow are deleted；Or

By corresponding discrete second data of target PDU flow described in the source RB according to the sequence of the SN serial numbers of data, It is sent to high level successively.

28. the equipment as described in claim 19~23,25~27, which is characterized in that if the data processing equipment is node, First data are that downlink sends end data, and second data are uplink receiving end data；

29. equipment as claimed in claim 28, which is characterized in that described true if the data processing equipment is user equipment Cover half block, is specifically used for：

The determining module, is specifically used for：

The target PDU flow are determined according to following manner：

30. equipment as claimed in claim 29, which is characterized in that the processing module is additionally operable to：

If the PDU flow of the user equipment and the variation of RB mapping relations are the node needs accessed by the user equipment Caused by being reconfigured, and the data processing equipment is node, is determining the target PDU flow in the RB of source After the completion of total data processing, the mapping relations of the PDU flow and RB of the user equipment are reconfigured.

31. equipment as claimed in claim 28, which is characterized in that the processing module is additionally operable to：

If the PDU flow of the user equipment and the variation of RB mapping relations are the node needs accessed by the user equipment Caused by being reconfigured, and the data processing equipment is node, by parts of the target PDU flow in the RB of source or complete Before the first data of portion are transferred in target RB, according to the determining target PDU flow some or all of in following manner：

According to the quantity for the PDU flow for needing to change mapping relations in each RB, more by the needs in the RB of the minimum number Change the PDU flow of mapping relations as target PDU flow；

32. equipment as claimed in claim 28, which is characterized in that the processing module is additionally operable to：

If the PDU flow of the user equipment and the variation of RB mapping relations are to need to switch to target by the user equipment Caused by node, and the data processing equipment is source node, by target PDU flow first some or all of in the RB of source After data are transferred in target RB, by data in the target RB by before between the destination node and the source node Turn data channel forward to the destination node.

33. equipment as claimed in claim 28, which is characterized in that the processing module is additionally operable to：

If the PDU flow of the user equipment and the variation of RB mapping relations are to need to switch to target by the user equipment Caused by node, and the data processing equipment is source node, by target PDU flow first some or all of in the RB of source After data are transferred in target RB, the original SN status informations of the target RB are sent to the destination node, and will Be transferred to the target RB distributed SN and by air interface transmission but be not received by confirmation message AM data it is corresponding SN status informations are adjusted to retransmit, and the SN status informations after adjustment are sent to the destination node.

34. equipment as claimed in claim 28, which is characterized in that the processing module is additionally operable to：

If the PDU flow of the user equipment and the variation of RB mapping relations are to need to switch to target by the user equipment Caused by node, and the data processing equipment is source node, by target PDU flow first some or all of in the RB of source Before data are transferred in target RB, the target PDU flow are determined according to the notice of the destination node received.

35. equipment as claimed in claim 34, which is characterized in that the notice includes the target PDU flow；Or

36. equipment as claimed in claim 35, which is characterized in that the processing module is specifically used for：

If the notice includes the mapping relations of the PDU flow and RB of the user equipment after variation, according to following manner In some or all of determine the target PDU flow：