CN110445589A

CN110445589A - A kind of processing method and processing device of business data packet

Info

Publication number: CN110445589A
Application number: CN201810421147.6A
Authority: CN
Inventors: 傅婧; 梁靖
Original assignee: Telecommunications Science and Technology Research Institute Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2018-05-04
Filing date: 2018-05-04
Publication date: 2019-11-12
Anticipated expiration: 2038-05-04
Also published as: CN110445589B

Abstract

The embodiment of the present invention provides a kind of processing method and processing device of business data packet, to solve in the prior art target network side gusset when cannot successfully parse the business data packet received or be not successfully receiving business data packet, the technical issues of business data packet can not correctly be handled, which comprises target RAN node receives the business data packet that UE is sent together when sending and connecting recovery request information；The business data packet is sent to the processing of source RAN node by target RAN node, or, target RAN node cannot parse the business data packet in determination or determination fails when receiving the business data packet, sends instruction information to UE, which is used to indicate UE and retransmits to the business data packet.

Description

A kind of processing method and processing device of business data packet

Technical field

The present invention relates to field field of communication technology more particularly to a kind of processing method and processing devices of business data packet.

Background technique

State between field of communication technology, user equipment (User Equipment, UE) and network side node can be with It is divided into two classes, one kind is connection status, and another kind of is notconnect state.Wherein, connection status is, for example, wireless heterogeneous networks (Radio Resource Control, RRC) connected state；Notconnect state is, for example, RRC Idle state or inactive (inactive) state etc..

By sending connection recovery request to network side node, realization restores from notconnect state to connection status UE.Mesh Before, in order to shorten time delay and reduce signaling overheads, it has been proposed that it is a kind of by business data packet with eat dishes without rice or wine connection restore when one piece It is sent to the scheme of network side node.But due to the mobility of UE, network side node (the i.e. target network of UE reconnect Side gusset) it may not be the source network side gusset connected before UE, thus, target network side gusset may be without the upper of the UE Hereafter, or security algorithm that the UE cannot be supported currently to select, cause target network side gusset that cannot successfully parse reception The business data packet arrived.Target network side gusset cannot successfully parse the business data packet received or be not received by industry When data packet of being engaged in, the business data packet how should be handled, there is presently no specific methods.

Summary of the invention

The embodiment of the present invention provides a kind of processing method and processing device of business data packet, to solve target in the prior art Network side node is when cannot successfully parse the business data packet received or be not successfully receiving business data packet, Wu Fazheng The technical issues of really handling the business data packet.

In a first aspect, providing a kind of processing method of business data packet, comprising:

Target radio access network RAN node receives what user equipment (UE) was sent together when sending and connecting recovery request information Business data packet；

The business data packet is sent to the processing of source RAN node by the target RAN node；Alternatively, the target RAN section Point cannot parse the business data packet in determination or determination fails when receiving the business data packet, and Xiang Suoshu UE is sent Indicate that information, the instruction information are used to indicate the UE and retransmit to the business data packet.

In one possible implementation, the business data packet is sent to source RAN section in the target RAN node Before point, the method also includes:

The target RAN node is after receiving the business data packet, it is determined whether the business data packet can be parsed, If cannot if the business data packet be sent to the source RAN node handle.

In one possible implementation, the business data packet is sent to source RAN node by the target RAN node Processing, comprising:

The business data packet is sent to the source RAN node by the target RAN node, by the source RAN node It parses the business data packet acquisition parsing Data Concurrent and send the parsing data；

Wherein, the parsing data are sent to core net node by the source RAN node；Or, the parsing data are by institute The source RAN node of stating is sent to the target RAN node, and is sent to the core net node by the target RAN node.

In one possible implementation, core net node is sent to by the source RAN node in the parsing data In the case where, further includes:

The target RAN node receives the source RAN node after the business data packet is sent to source RAN node The feedback of transmission indicates that the feedback instruction is used to indicate the source RAN to the disposition of the business data packet.

In one possible implementation, the instruction information include the first information, second of information and the third One of information is a variety of, in which:

The first described information include indicate the target RAN node be not successfully received the business data packet information, Indicate that the target RAN node parses the information of the business data packet not successfully and notifies the UE to the business data packet One or more information in the information retransmitted；

Second of the information includes that the safety for indicating that the target RAN node does not support the business data packet to use is calculated The information of method indicates that the target RAN node does not find the information of the UE context, indicates the target RAN node not The information for the Encryption Algorithm for supporting the business data packet to use indicates that the target RAN node does not support the business datum It wraps the information of the protection algorithm integrallty used and indicates the pressure that the target RAN node does not support the business data packet to use One or more information in the information of contracting agreement；

The third described information includes the information for indicating new key, the information for indicating new Encryption Algorithm, indicates new The information of the protection algorithm integrallty information of compression protocol one or more of new with expression.

In one possible implementation, the instruction information carries in radio resource control RRC message, or carries In packet data convergence protocol data cell PDCP PDU.

In one possible implementation, it is described to described in the case that the instruction information is carried in RRC information UE is sent after instruction information, further includes:

The target RAN node receives the UE according to the business data packet of the instruction information re-transmission；

Wherein, the rrc layer that the business data packet of the re-transmission is the UE applies the new key, the new encryption One of algorithm, the new protection algorithm integrallty and described new compression protocol or it is a variety of after, indicate the UE's The business data packet of PDCP layers of re-transmission；Alternatively, the rrc layer that the business data packet of the re-transmission is the UE is interactive by interlayer, Trigger the business data packet of higher layer retransmission.

In one possible implementation, it is described to institute in the case that the instruction information is carried in PDCP PDU State UE send instruction information after, further includes:

Wherein, the business data packet of the re-transmission is the UE the PDCP layer application new key described new adds One of close algorithm, the new protection algorithm integrallty, described new compression protocol or it is a variety of after, the business datum of re-transmission Packet；Alternatively, the PDCP layer that the business data packet of the re-transmission is the UE triggers the business number of higher layer retransmission by interlayer interaction According to packet.

Second aspect provides a kind of processing method of business data packet, comprising:

User equipment (UE) sends business when sending connection recovery request information to target radio access network RAN node together Data packet；

The UE reception target RAN node cannot parse the business data packet or determine to fail and connect in determination The instruction information sent when receiving the business data packet, the instruction information be used to indicate the UE to the business data packet into Row retransmits；

The UE sends the business data packet retransmitted to the target RAN node according to the instruction information.

In one possible implementation, the received instruction information of the UE is carried in radio resource control RRC In message, or carry in packet data convergence protocol data cell PDCP PDU.

In one possible implementation, in the case that the instruction information is carried in RRC information, the UE according to The instruction information sends the business data packet retransmitted to the target RAN node, comprising:

The rrc layer of the UE is calculated in the application new key, the new Encryption Algorithm, the new integrity protection One of method and the new compression protocol or it is a variety of after, indicate that the PDCP layer of the UE carries out weight to the business data packet It passes；Alternatively,

The rrc layer of the UE retransmits the business data packet by interlayer interaction, triggering high level.

In one possible implementation, in the case that the instruction information is carried in PDCP PDU, the UE root The business data packet retransmitted is sent to the target RAN node according to the instruction information, comprising:

The PDCP layer of the UE is applying the new key, the new Encryption Algorithm, the new integrity protection One of algorithm, described new compression protocol or it is a variety of after, the business data packet is retransmitted；Alternatively,

The PDCP layer of the UE retransmits the business data packet by interlayer interaction, triggering high level.

The third aspect, provides a kind of processing unit of business data packet, and described device is target radio access network RAN section Point, described device include processor and memory for storing instruction, wherein the processor is for reading the memory In instruction, execute following process:

Receive the business data packet that user equipment (UE) is sent together when sending and connecting recovery request information；

The business data packet is sent to the processing of source RAN node；Alternatively, the business data packet cannot be parsed in determination Or determination fails when receiving the business data packet, Xiang Suoshu UE sends instruction information, and the instruction information is used to indicate The UE retransmits the business data packet.

In one possible implementation, the processor reads the instruction execution in the memory for the business Data packet is sent to before this process of source RAN node, further includes executing following process:

After receiving the business data packet, it is determined whether the business data packet can be parsed, if cannot if by institute It states business data packet and is sent to the source RAN node processing.

In one possible implementation, the processor reads the instruction execution in the memory for the business Data packet is sent to the process of source RAN node processing, comprising:

The business data packet is sent to the source RAN node, to parse the business datum by the source RAN node Packet obtains parsing Data Concurrent and send the parsing data；

In one possible implementation, core net node is sent to by the source RAN node in the parsing data In the case where, it further includes executing following process that the processor, which reads the instruction in the memory:

After the business data packet is sent to source RAN node, the feedback instruction that the source RAN node is sent is received, The feedback instruction is used to indicate the source RAN to the disposition of the business data packet.

In one possible implementation, in the case that the instruction information is carried in RRC information, the processor Read instruction execution in the memory to the UE send instruction information process after, further include executing following process:

The UE is received according to the business data packet of the instruction information re-transmission；

In one possible implementation, in the case that the instruction information is carried in PDCP PDU, the processing It further include executing following mistake after device reads the process that the instruction execution in the memory sends instruction information to the UE Journey:

Fourth aspect provides a kind of UE, comprising:

Memory, for storing instruction；

Processor executes following process for reading the instruction in the memory:

Business data packet is sent together when sending connection recovery request information to target radio access network RAN node；It connects It receives the target RAN node and cannot parse the business data packet in determination or determine and fail and receive the business data packet When the instruction information that sends, the instruction information is used to indicate the UE and retransmits to the business data packet；According to described Indicate that information sends the business data packet retransmitted to the target RAN node.

In one possible implementation, in the case that the instruction information is carried in RRC information, the processor The instruction execution read in the memory sends the business datum retransmitted to the target RAN node according to the instruction information The process of packet, comprising:

The rrc layer for controlling the UE is protected in the application new key, the new Encryption Algorithm, the new integrality Protect one of algorithm and the new compression protocol or it is a variety of after, indicate the PDCP layer of the UE to the business data packet into Row retransmits；Alternatively,

The rrc layer of the UE is controlled by interlayer interaction, triggering high level retransmits the business data packet.

In one possible implementation, in the case that the instruction information is carried in PDCP PDU, the processing Device reads the instruction execution in the memory and sends the business number retransmitted to the target RAN node according to the instruction information According to the process of packet, comprising:

The PDCP layer for controlling the UE is applying the new key, the new Encryption Algorithm, the new integrality One of protection algorism, described new compression protocol or it is a variety of after, the business data packet is retransmitted；Alternatively,

The PDCP layer of the UE is controlled by interlayer interaction, triggering high level retransmits the business data packet.

5th aspect, provides a kind of processing unit of business data packet, and described device is target radio access network RAN section Point, comprising:

Receiving module, the business data packet sent together for receiving UE when sending and connecting recovery request information；

Sending module, for the business data packet to be sent to the processing of source RAN node；Alternatively, this cannot be parsed in determination Business data packet or determination fail when receiving the business data packet, send instruction information to UE, the instruction information is for referring to Show that UE retransmits the business data packet.

In one possible implementation, described device further includes determining module, in which:

The determining module, for before the business data packet is sent to source RAN node by the sending module, and institute Receiving module is stated after receiving the business data packet, it is determined whether the business data packet can be parsed；

The sending module is also used to when the determining module determination cannot parse the business data packet, by the business Data packet is sent to the processing of source RAN node.

In one possible implementation, the sending module is specifically used for:

The business data packet is sent to source RAN node, obtains parsing number to parse the business data packet by source RAN node According to and send the parsing data；

Wherein, which is sent to core net node by source RAN node；Or, the parsing data are sent out by source RAN node Target RAN node is given, and the core net node is sent to by target RAN node.

In one possible implementation, the case where the parsing data are sent to core net node by source RAN node Under, the receiving module is also used to:

After the business data packet is sent to source RAN node by the sending module, the feedback that source RAN node is sent is received Instruction, feedback instruction are used to indicate source RAN to the disposition of the business data packet.

In one possible implementation, which includes the first information, second of information and the third letter One of breath is a variety of, in which:

The first information includes indicating that target RAN node is not successfully received the information of the business data packet, indicates target One in information that RAN node parses the information of the business data packet not successfully and notice UE retransmits the business data packet A or multiple information；

Second of the information includes the letter for the security algorithm for indicating that target RAN node does not support the business data packet to use Breath indicates that target RAN node does not find the information of UE context, indicates that target RAN node does not support the business data packet to adopt The information of Encryption Algorithm, the letter for indicating the protection algorithm integrallty that target RAN node does not support the business data packet to use One or more information in the information for the compression protocol that breath and expression target RAN node do not support the business data packet to use；

The third information includes the information for indicating new key, the information for indicating new Encryption Algorithm, indicates newly complete The information of the whole property protection algorism information of compression protocol one or more of new with expression.

In one possible implementation, which carries in RRC information, or carries in PDCP PDU.

In one possible implementation, in the case which carries in RRC information, the receiving module It is also used to:

After the sending module sends instruction information to UE, UE is received according to the business datum of the instruction information re-transmission Packet；

Wherein, the rrc layer that the business data packet of the re-transmission is UE using the new key, the new Encryption Algorithm, this is new Protection algorithm integrallty and one of the new compression protocol or it is a variety of after, indicate the business datum that the PDCP layer of UE retransmits Packet；Alternatively, the rrc layer that the business data packet of the re-transmission is UE triggers the business data packet of higher layer retransmission by interlayer interaction.

In one possible implementation, in the case which carries in PDCP PDU, the reception mould Block is also used to:

Wherein, the business data packet of the re-transmission be UE PDCP layer using the new key, the new Encryption Algorithm, this newly Protection algorithm integrallty, one of the new compression protocol or it is a variety of after, the business data packet of re-transmission；Alternatively, the re-transmission Business data packet be UE PDCP layer by interlayer interact, trigger the business data packet of higher layer retransmission.

6th aspect, provides a kind of UE, including sending module and receiving module, in which:

The sending module, for sending business datum together when sending connection recovery request information to target RAN node Packet；

The receiving module, for receiving, target RAN node cannot parse the business data packet in determination or determination fails into Function receives the instruction information sent when the business data packet, which is used to indicate UE and carries out weight to the business data packet It passes；

The sending module is also used to send the business data packet retransmitted to target RAN node according to the instruction information.

In one possible implementation, the received instruction information of receiving module carries in RRC information, or carries In PDCP PDU.

In one possible implementation, in the case which carries in RRC information, the sending module root The business data packet retransmitted is sent to target RAN node according to the instruction information, comprising:

Rrc layer by UE is being applied the new key, the new Encryption Algorithm, the new protection algorithm integrallty and is being somebody's turn to do One of new compression protocol or it is a variety of after, indicate that the PDCP layer of UE retransmits the business data packet；Alternatively,

Interlayer interaction is carried out by the rrc layer of UE, triggering high level retransmits the business data packet.

In one possible implementation, in the case which carries in PDCP PDU, the sending module The business data packet retransmitted is sent to target RAN node according to the instruction information, comprising:

PDCP layer by UE is being applied the new key, the new Encryption Algorithm, the new protection algorithm integrallty, is being somebody's turn to do One of new compression protocol or it is a variety of after, which is retransmitted；Alternatively,

Interlayer interaction is carried out by the PDCP layer of UE, triggering high level retransmits the business data packet.

7th aspect, provides a kind of computer readable storage medium, the computer-readable recording medium storage has calculating Machine instruction, when the computer instruction is run on a computing device, so that computer equipment executes as described in relation to the first aspect Method.

Eighth aspect, provides a kind of computer readable storage medium, and the computer-readable recording medium storage has calculating Machine instruction, when the computer instruction is run on a computing device, so that computer equipment is executed as described in second aspect Method.

In the embodiment of the present invention, target RAN node receives the industry that UE is sent together when sending and connecting recovery request information Business data packet；The business data packet is sent to the processing of source RAN node by target RAN node, alternatively, target RAN node is in determination The business data packet cannot be parsed or determination fails when receiving the business data packet, send instruction information, the instruction to UE Information is used to indicate UE and retransmits to the business data packet.The method and apparatus recorded through the embodiment of the present invention are perfect Place of the target RAN node that UE is reconnected when cannot successfully parse business data packet or be unsuccessfully received business data packet Reason mode avoids the loss of business datum.Also, in the embodiment of the present invention send connect recovery request information when it is one concurrent Business data packet is sent, time delay is shortened and reduces signaling overheads.

Detailed description of the invention

In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Inventive embodiments for those of ordinary skill in the art without creative efforts, can also be according to mentioning The attached drawing of confession obtains other attached drawings.

Fig. 1 is a kind of flow diagram of the processing method of business data packet in the embodiment of the present invention；

Fig. 2 is the flow diagram of the processing method of another business data packet in the embodiment of the present invention；

Fig. 3 is the flow diagram of the processing method of another business data packet in the embodiment of the present invention；

Fig. 4 is the flow diagram of the processing method of another business data packet in the embodiment of the present invention；

Fig. 5 is a kind of structural block diagram of the processing unit of business data packet in the embodiment of the present invention；

Fig. 6 is a kind of structural block diagram of UE in the embodiment of the present invention.

Specific embodiment

In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.

In addition, the terms "and/or", only a kind of incidence relation for describing affiliated partner, indicates may exist Three kinds of relationships, for example, A and/or B, can indicate: individualism A exists simultaneously A and B, these three situations of individualism B.Separately Outside, character "/" herein typicallys represent the relationship that forward-backward correlation object is a kind of "or" in the case where not illustrating. In addition, it is necessary to understand, in the description of the embodiment of the present invention, the vocabulary such as " first ", " second " are only used for distinguishing description Purpose is not understood to indicate or imply relative importance, can not be interpreted as indication or suggestion sequence.

Firstly, the application scenarios and relevant knowledge to the embodiment of the present invention are introduced.

In long evolving system (Long Term Evolution, LTE), network side node uses hang-up (suspend) Process hangs up UE.After hang-up, UE enters RRC Idle state, but UE and base station side are stored with the context of UE.Think to next UE When interacting with network side, then the information stored before can be used quickly restores the connection with network side and sends data.

Newly eat dishes without rice or wine (New Radio, NR) RRC connection status in addition to RRC free time and RRC connected state, introduce one New state, i.e. inactive state.Inactive state has following characteristics: UE monitoring system message；The mobility of UE is logical Cross cell reselection realization；The corresponding 5G core net of the UE (5G Core Network, 5GC) is established to enter with Next-Generation Net (Next Generation Radio Access Networks, NG-RAN) connection；UE access layer (AS, Access Stratum) context (context) is stored at least one base station 5G (gNB) and the side UE；The notice of the NG-RAN management side RAN Region (RAN-based notification area, RNA)；NG-RAN knows which RNA is current UE be in.Due to UE and RAN Node stores the context of UE, and UE and network side can quickly restore to connect and send based on the information stored before Data.

Packet data convergence protocol (Packet Data Convergence Protocol, PDCP) layer is used for user face The operation such as head compression, encryption, integrity protection is provided with control face data and realizes the support to UE lossless switching.

A kind of processing method of business data packet provided in an embodiment of the present invention can be applied to network side, such as RAN, In, source RAN node, target RAN node in RAN for example can be the network elements such as base station, radio network controller, relay station and set It is standby.

Referring to Figure 1, the processing method of the business data packet includes step 101 and step 102:

Step 101: target RAN node receives the business datum that UE is sent together when sending and connecting recovery request information Packet.

Wherein, with connect the business data packet that recovery request information is sent together for example can be data volume it is smaller and/or Send data packet infrequently, for example, it can be data of water meter packet, data of water meter packet size is generally 12-100 byte, It sends within every 12 hours primary.

Step 102: the business data packet is sent to source RAN node and handled by target RAN node；Alternatively, target RAN node The business data packet cannot be parsed in determination or determination fails when receiving the business data packet, send instruction information to UE, The instruction information is used to indicate UE and retransmits to the business data packet.

As described in step 102, the place for the business data packet that target RAN node sends same connection recovery request information together Reason mode, can be roughly divided into two types, and the first kind is the processing mode based on source RAN node, and the second class is the processing based on UE Mode.Both modes can and be deposited, such as target RAN node can use second after attempting to carry out the failure of first kind mode Class mode, in another example target RAN node can use first kind mode after attempting to carry out the failure of the second class mode, in another example mesh Mark RAN node can be attempted to carry out first kind mode and the second class mode simultaneously.

Above-mentioned first kind mode and the second class mode has in common that target RAN node by means of in communication system Other equipment, the final purpose realized core net node and receive parsing data, also, either use which kind of mode, core The parsing data that heart net node eventually receives are identical, are that sent together when sending and connecting recovery request information A little business datums.That is, first kind mode and the second class mode may be summarized to be: target RAN node combination UE or source RAN The processing of node, so that core net node receives parsing data, the parsing data that core net node receives and the company of transmission The data obtained after the business data packet sent together when connecing recovery request is resolved are identical.

First kind mode and the second class mode the difference lies in that target RAN node is by means of source RAN in first kind mode Node, and target RAN node is by means of UE in the second class mode, also, the solution that core net node receives in first kind mode The business data packet that analysis data are sent together when being parsing UE transmission connection recovery request obtains, and core in the second class mode The parsing data that net node receives are to parse the business data packet that UE is retransmitted to obtain.

In the following, the processing from first kind mode and the second class mode to business data packet provided in an embodiment of the present invention respectively Method is introduced.

Wherein, the processing method of business data packet is specific under first kind mode (processing mode i.e. based on source RAN node) It may include two kinds, Fig. 2 show the first, and Fig. 3 is shown second.

In Fig. 2, the industry that UE is sent together when sending and connecting recovery request information is received in step 201 target RAN node After data packet of being engaged in, for target RAN node to there are two types of the dispositions of business data packet, one is target RAN nodes directly to hold Business data packet is sent to the processing of source RAN node by row step 203, and another kind is to first carry out step before executing step 203 202 determine whether that the business data packet can be parsed, if can if by business data packet be sent to source RAN node processing.

That is, under the processing mode based on source RAN node business data packet processing method, including two kinds may be selected Property use concrete mode:

First, being directly forwarded to the processing of source RAN node after target RAN node receives the business data packet；

Second, after target RAN node receives the business data packet judge whether that the business data packet can be parsed, if can, Business data packet acquisition parsing Data Concurrent is parsed by target RAN node and gives core net node, otherwise, target RAN node The business data packet is forwarded to give the processing of source RAN node.

Wherein, core net node for example can be user plane functions (User Plane Function, UPF) entity, service Gateway (Serving Gateway, S-GW) etc..

After business data packet is sent to the source RAN node by step 203 target RAN node, step is executed by source RAN node The rapid 204 parsing business data packet obtains parsing Data Concurrent and send parsing data.

Source RAN node sends parsing data, including two kinds of alternative sending methods used, respectively Fig. 2, Fig. 3 institute The sending method shown:

In Fig. 2, after step 204 source RAN node parses business data packet acquisition parsing data, source RAN node executes step Parsing data are sent to core net node by rapid 205.

Optionally, in the case that parsing data shown in Fig. 2 are sent to core net node by source RAN node, source RAN section Point can also be performed step 206 and send feedback instruction to target RAN node, and feedback instruction is used to indicate source RAN to the business The disposition of data packet.That is, target RAN node can receive after business data packet is sent to source RAN node The feedback instruction that source RAN node is sent.Wherein, feedback instruction can for example connect the business data packet with feedback sources RAN node Receive situation, parsing situation, transmission situation etc. of the source RAN node to parsing data.

In Fig. 3, after step 204 source RAN node parses business data packet acquisition parsing data, source RAN node executes step Parsing data are sent to target RAN node by rapid 207, then are executed step 208 by target RAN node and be sent to core for data are parsed Heart net node.

It should be noted that step 201- step 204 and step 201- step 204 phase shown in Fig. 2 shown in Fig. 3 Together, details are not described herein.

Fig. 4 is referred to, Fig. 4 show the processing side of business data packet under the processing mode based on UE (i.e. the second class mode) The flow diagram of method.

In Fig. 4, target RAN node executes step 401 and receives what UE was sent together when sending and connecting recovery request information When business data packet, it may determine whether to be successfully received the business data packet；And after receiving the business data packet, target RAN node can carry out parsing operation to the business data packet, it can determine whether that the business data packet can be parsed.In Fig. 4 In, it will be determined whether and be successfully received the business data packet and/or determine whether the step of capable of parsing business data packet conclusion For step 402.

Specifically, target RAN node determines the case where failing to successfully receive business data packet, such as can be connection In recovery request information there is the business data packet sent together in instruction but target RAN node does not receive the business data packet, In another example can be target RAN node during receiving business data packet due to factors such as network failures, cause to receive industry Break during data packet of being engaged in or received business data packet is imperfect etc..

Business data packet cannot be parsed in determination or determination fails when receiving business data packet, and target RAN node is held Row step 403 sends instruction information to UE, which is used to indicate the business that UE sends same connection recovery request together Data packet is retransmitted.

UE executes step 404 and sends the industry retransmitted to target RAN node according to instruction information after receiving instruction information Business data packet.In the embodiment of the present invention, the business data packet that UE sends same connection recovery request together is retransmitted, i.e. UE root The business data packet retransmitted is sent to target RAN node according to instruction information.Wherein, the business data packet of re-transmission connect recovery with same The business data packet sent together is requested to be compared, the business datum content that the two includes is identical, but the key of the two use, safety One of algorithm, Encryption Algorithm, protection algorithm integrallty and compression protocol or a variety of differences.

In the embodiment of the present invention, the instruction information that target RAN node is sent to UE may include the first information, second One of information and the third information are a variety of, in which:

The first information may include one or more information in following three information: (1) indicating target RAN node not It is properly received the information of business data packet, (2) indicate that target RAN node parses the information of business data packet, (3) notice not successfully The information that UE retransmits business data packet；

Second of information may include one or more information in following five information: (1) indicating target RAN node not The information of security algorithm of supporting business data packet to use, (2) indicate target RAN node do not find UE context information, (3) indicate that the information for the Encryption Algorithm that target RAN node does not support business data packet to use, (4) indicate that target RAN node is not propped up Hold the information of the protection algorithm integrallty of business data packet use, (5) indicate that target RAN node does not support business data packet to use Compression protocol information；

The third information may include one or more information in following four information: (1) indicating the letter of new key Breath, (2) indicate that the information of new Encryption Algorithm, (3) indicate that the information (4) of new protection algorithm integrallty indicates new compression association The information of view.

It should be noted that new key in the third information, new Encryption Algorithm, new protection algorithm integrallty and new Compression protocol, refer to the key, encryption that the business data packet sent to target RAN node relative to UE in step 401 uses Algorithm, protection algorithm integrallty and compression protocol are new.

In the embodiment of the present invention, target RAN node is sent in instruction information process to UE, and target RAN node is sent to UE Instruction information can be carrying in RRC information, be also possible to carry in PDCP protocol Data Unit (Packet Data Unit, PDU) in.

In the case where indicating that information carries in RRC information, UE sends to target RAN node according to instruction information and retransmits Business data packet, including two kinds of alternative methods used:

(1) rrc layer of UE is in the new key of application, new Encryption Algorithm, new protection algorithm integrallty and new compression One of agreement or it is a variety of after, indicate that the PDCP layer of UE retransmits business data packet.That is, the business data packet retransmitted is The rrc layer of UE using one of new key, new Encryption Algorithm, new protection algorithm integrallty and new compression protocol or After a variety of, the business data packet that the PDCP layer of UE retransmits is indicated.Wherein, the specific implementation process retransmitted can be UE's Rrc layer indicates that the PDCP layer of UE retransmits business data packet, and the business data packet of re-transmission forms a PDCP PDU and is submitted to Low layer.

(2) rrc layer of UE retransmits business data packet by interlayer interaction, triggering high level.That is, rrc layer notice is high Layer retransmits business data packet.The rrc layer that the business data packet of re-transmission is UE triggers higher layer retransmission by interlayer interaction Business data packet.

In the case where indicating that information carries in PDCP PDU, UE sends weight to target RAN node according to instruction information The business data packet of biography, including two kinds of alternative methods used:

(1) the PDCP layer of UE is applying new key, new Encryption Algorithm, new protection algorithm integrallty, new compression One of agreement or it is a variety of after, business data packet is retransmitted.That is, the PDCP layer that the business data packet retransmitted is UE is applied One of new key, new Encryption Algorithm, new protection algorithm integrallty, new compression protocol or it is a variety of after, re-transmission Business data packet.

(2) the PDCP layer of UE retransmits the business data packet by interlayer interaction, triggering high level.That is, retransmit The PDCP layer that business data packet is UE triggers the business data packet of higher layer retransmission by interlayer interaction.

For ease of understanding, below to three kinds of specific places in the processing method of business data packet provided in an embodiment of the present invention Reason mode is illustrated:

Processing mode 1:

The business data packet received is directly transmitted to the processing mode of source RAN node by target RAN node, specifically include as Lower step:

Step 11:UE sends business data packet (business data packet has carried out encryption and/or integrity protection)；It is optional , UE sends RRC information simultaneously.

Step 12: after target RAN node receives business data packet, business data packet being transmitted to source RAN node；It is optional , received RRC information is also transmitted to source RAN node for one piece simultaneously by target RAN node.

Step 13: source RAN node is based on some information (such as cell wireless network received simultaneously when receiving business data packet Network temporary identifier (Cell Radio Network Temporary Identiy, C-RNTI), source cell mark etc.), find source The context of the UE of RAN node storage, the context based on the UE, source RAN node find key and relevant safety Algorithm, source RAN node are decrypted business data packet and/or complete based on the key and relevant security algorithm that find Integrity verification, the parsing data after obtaining the resolve packet.

Step 14: one of source RAN node selectively proceeds as follows:

(1) parsing data are directly sent to core net node (such as UPF/S-GW)；

(2) parsing data are issued into the target RAN node in step 12, is sent to by target RAN node by data are parsed Core net node (such as UPF/S-GW).

Processing mode 2:

When target RAN node cannot successfully parse business data packet, business data packet is just transmitted to the place of source RAN node Reason mode, specifically comprises the following steps:

Step 21:UE sends business data packet (the PDCP layers of business data packet progress sent to needs to target RAN node The operation such as encryption and/or the compression of integrity protection and relevant head)；Optionally, UE sends RRC information simultaneously.

Step 22: target RAN node is based on some information (such as the C- received while receiving business data packet RNTI, source cell mark etc.), the context for finding the UE of RAN side gusset storage (note: if UE is mobile, leads to target RAN The context of the not no UE of node, target RAN node may need to look into the source RAN node for storing the UE relevant information before It askes, obtains the context of the UE).

Step 23: the discovery of target RAN node cannot successfully parse the small data packets, and target RAN node is by the business datum Packet is transmitted to source RAN node (the RAN side gusset of UE context is stored before i.e. in step 2).For example, target RAN node It cannot support security algorithm selected in UE context and cause to decrypt small data failure；Or target RAN node cannot It supports selected protection algorithm integrallty, causes not can be carried out integrity verification；Or target RAN node does not support that UE is current Used compression protocol is unable to the data packet that successful decompression is received.

Step 24: source RAN node based on receive business data packet when simultaneously receive some information (such as C-RNTI, Source cell mark etc.), find the context of the UE of source RAN node storage.Context based on the UE, source RAN node are found Key, relevant security algorithm, selected compression protocol etc..Source RAN node is based on key obtained, relevant safety Property the information such as algorithm, selected compression protocol, parsing is carried out to business data packet and obtains parsing data.

Step 25: one of source RAN node selectively proceeds as follows:

(1) parsing data are directly sent to core net node；

(2) parsing data are issued into the target RAN node in step 22, is sent to by target RAN node by data are parsed Core net node.

Processing mode 3:

Target RAN node informs UE, and the processing mode of business data packet is retransmitted by UE, is specifically comprised the following steps:

Step 31:UE sends small data packets；Optionally, UE sends RRC information simultaneously.

Step 32: for target RAN node during receiving and/parsing business data packet, determination cannot parse the industry Business data packet or determining fail receive the business data packet.For example, target RAN node discovery cannot find the UE Context；Or based on interaction between node, the context of the UE is obtained, but discovery cannot successfully parse the business data packet (resolving includes one of decryption, integrity verification and decompression or a variety of), as target RAN node does not support the UE Security algorithm selected in context causes to decrypt business data packet failure.

Step 33: target RAN node sends instruction information to UE and informs UE, which includes the first information, the One of two kinds of information and the third information are a variety of, also, the instruction information can carry in RRC information, can also be with It carries in PDCP PDU:

Second of information is the reason of instruction retransmits, and may include one or more information in following five information: (1) Indicate that the information for the security algorithm that target RAN node does not support business data packet to use, (2) indicate that target RAN node is not looked for Information, (4) table of the Encryption Algorithm that target RAN node does not support business data packet to use are indicated to the information of UE context, (3) Show that the information for the protection algorithm integrallty that target RAN node does not support business data packet to use, (5) indicate target RAN node not In the information for the compression protocol for supporting business data packet to use；

The third information may include one or more information in following four information: (1) indicating the letter of new key Breath, (2) indicate that the information of new Encryption Algorithm, (3) indicate that the information (4) of new protection algorithm integrallty indicates new compression association In the information of view.

After step 34:UE receives above-mentioned instruction information, carry out business data packet re-transmission, specific retransmission scheme can for One of lower four kinds of retransmission schemes:

(1) if instruction information carries in RRC information, after safety reactivates, or the encryption calculation that application is new One of method, new protection algorithm integrallty, new compression protocol or it is a variety of after, the PDCP layer of UE just carries out data packet weight It passes.For example, UE, which receives RRC connection, establishes message, carry indicates that decryption services data packet is unsuccessful and/or integrality is tested in the middle The instruction information of failure is demonstrate,proved, the rrc layer of UE triggers PDCP layers of re-transmission business data packet after security activation；In another example UE is received Message is established to RRC connection, the instruction information and new security algorithm for carrying notice re-transmission business data packet in the middle (can To include new Encryption Algorithm and/or protection algorithm integrallty), UE answers new Encryption Algorithm and/or protection algorithm integrallty After using PDCP layers, PDCP layers of progress data packet retransmission, such as PDCP layers by retransmit PDCP Service Data Unit (Service Data Unit, SDU) carry out data packet retransmission.

(2) if instruction information carries in RRC information, rrc layer directly by interlayer interaction, triggers higher layer retransmission business Data packet.For example, UE, which receives RRC connection, establishes message, the instruction letter for indicating to be not successfully received business data packet is carried in the middle Breath, the rrc layer of UE directly by interlayer interaction, trigger high-rise (such as corresponding application layer) and retransmit business data packet.

(3) if instruction information carries in PDCP PDU, PDCP layer new security algorithm to be applied, new encryption calculation One of method, new protection algorithm integrallty, new compression protocol or it is a variety of after, PDCP layers of re-transmission business data packet.For example, For example UE receives PDCP control packet, carry indicates that data packet is unable to successful decryption and/or cannot pass through integrity verification in the middle Instruction information, the PDCP layer new security algorithm to be applied of UE, new Encryption Algorithm, one in new protection algorithm integrallty Kind or it is a variety of after, by retransmitting PDCP layer of data packet retransmission business data packet, such as pass through and retransmit PDCP SDU and realize re-transmission Business data packet.

(4) if instruction information carries in PDCP PDU, PDCP layers of informing are high-rise, trigger higher layer retransmission business datum Packet.

Based on the same inventive concept, the embodiment of the present invention provides a kind of processing unit of business data packet, which can be with Target RAN node for target RAN node above-mentioned, in for example, Fig. 1-Fig. 4.The device includes at least processor and for depositing Store up the memory of instruction, device for example, shown in fig. 5.Device shown in fig. 5 includes memory 501, processor 502 and transmitting-receiving Machine 503, wherein transceiver 503 and memory 501 can be connected by bus interface with processor 502, or can also be led to It crosses special connecting line to connect with processor 502, transceiver 503 can be used for sending business data packet, instruction information, feedback and refer to The information such as show, can be used for receiving the information such as parsing data, business data packet, connection recovery request information.

In the embodiment of the present invention, processor 502 is used to read the instruction in memory 501, executes following process:

The business data packet is sent to the processing of source RAN node；Alternatively, determination cannot parse the business data packet or really Surely it fails when receiving the business data packet, sends instruction information to the UE, which is used to indicate the UE to the industry Business data packet is retransmitted.

In a kind of possible embodiment, processor 502 reads the instruction execution in memory 501 for the business datum Packet is sent to before this process of source RAN node, further includes executing following process:

After receiving the business data packet, it is determined whether the business data packet can be parsed, if cannot if by the business Data packet is sent to source RAN node processing.

In a kind of possible embodiment, processor 502 reads the instruction execution in memory 501 for the business datum Packet is sent to the process of source RAN node processing, comprising:

The business data packet is sent to the source RAN node, is solved with parsing the business data packet by the source RAN node Analysis Data Concurrent gives the parsing data；

Wherein, which is sent to core net node by the source RAN node；Or, the parsing data are saved by source RAN Point is sent to the target RAN node, and is sent to the core net node by the target RAN node.

In a kind of possible embodiment, the feelings of core net node are sent to by the source RAN node in the parsing data Under condition, it further includes executing following process that processor 502, which reads the instruction in memory 501:

After the business data packet is sent to source RAN node, the feedback instruction of source RAN node transmission is received, this is anti- Feedback instruction is used to indicate source RAN to the disposition of the business data packet.

In a kind of possible embodiment, which includes the first information, second of information and the third letter One of breath is a variety of, in which:

The first information includes indicating that the target RAN node is not successfully received the information of the business data packet, indicates to be somebody's turn to do Target RAN node parses the information of the business data packet and the information for notifying the UE to retransmit the business data packet not successfully In one or more information；

Second of the information includes the letter for the security algorithm for indicating that the target RAN node does not support the business data packet to use It ceases, indicate that the target RAN node does not find the information of the UE context, indicates that the target RAN node does not support the business number The information of the Encryption Algorithm used according to packet indicates the integrity protection that the target RAN node does not support the business data packet to use The information of algorithm and indicate one in the information of the compression protocol that the target RAN node does not support the business data packet to use or Multiple information；

In a kind of possible embodiment, which is carried in radio resource control RRC message, or is carried In packet data convergence protocol data cell PDCP PDU.

In a kind of possible embodiment, in the case which carries in RRC information, processor 502 is read Instruction execution in access to memory 501 to the UE send instruction information process after, further include executing following process:

Wherein, the rrc layer that the business data packet of the re-transmission is the UE is applied the new key, the new Encryption Algorithm, is somebody's turn to do One of new protection algorithm integrallty and the new compression protocol or it is a variety of after, indicate the UE PDCP layer retransmit business Data packet；Alternatively, the rrc layer that the business data packet of the re-transmission is the UE triggers the business number of higher layer retransmission by interlayer interaction According to packet.

In a kind of possible embodiment, in the case which carries in PDCP PDU, processor 502 is read Further include executing following process after instruction execution in access to memory 501 sends the process of instruction information to the UE:

Wherein, the PDCP layer that the business data packet of the re-transmission is the UE is applied the new key, the new Encryption Algorithm, is somebody's turn to do One of new protection algorithm integrallty, the new compression protocol or it is a variety of after, the business data packet of re-transmission；Alternatively, this is heavy The PDCP layer that the business data packet of biography is the UE triggers the business data packet of higher layer retransmission by interlayer interaction.

Based on the same inventive concept, the embodiment of the present invention provides a kind of UE, which can be the UE in Fig. 1-Fig. 4.The UE Memory including at least processor and for storing instruction, UE for example, shown in fig. 6.UE shown in fig. 6 includes memory 601, processor 602 and transceiver 603, wherein transceiver 603 and memory 601 can pass through bus interface and processor 502 It is connected, or can also be connect by special connecting line with processor 602, transceiver 603 can be used for sending business number According to information such as packet, connection recovery request information, can be used for receiving the information such as instruction information.

In the embodiment of the present invention, processor 602 is used to read the instruction in memory 601, executes following process:

Business data packet is sent together when sending connection recovery request information to target RAN node；Receive target RAN Node cannot parse the business data packet in determination or determine the instruction information sent when failing and receiving the business data packet, The instruction information is used to indicate the UE and retransmits to the business data packet；It is sent out according to the instruction information to the target RAN node Send the business data packet of re-transmission.

In a kind of possible embodiment, the received instruction information of the UE is carried in radio resource control RRC message In, or carry in packet data convergence protocol data cell PDCP PDU.

In a kind of possible embodiment, in the case which carries in RRC information, processor 602 is read Instruction execution in access to memory 601 sends the mistake of the business data packet retransmitted according to the instruction information to the target RAN node Journey, comprising:

Control the rrc layer of the UE the application new key, the new Encryption Algorithm, the new protection algorithm integrallty and One of the new compression protocol or it is a variety of after, indicate that the PDCP layer of the UE retransmits the business data packet；Alternatively,

In a kind of possible embodiment, in the case which carries in PDCP PDU, processor 602 is read Instruction execution in access to memory 601 sends the mistake of the business data packet retransmitted according to the instruction information to the target RAN node Journey, comprising:

Control the PDCP layer of the UE the application new key, the new Encryption Algorithm, the new protection algorithm integrallty, One of the new compression protocol or it is a variety of after, which is retransmitted；Alternatively,

Based on the same inventive concept, the embodiment of the present invention provides a kind of processing unit of business data packet, which can be with It is the target RAN node in Fig. 1-Fig. 4.The device includes:

In a kind of possible embodiment, described device further includes determining module, in which:

In a kind of possible embodiment, the sending module is specifically used for:

In a kind of possible embodiment, the case where the parsing data are sent to core net node by source RAN node Under, the receiving module is also used to:

In a kind of possible embodiment, which is carried in RRC information, or is carried in PDCP PDU.

In a kind of possible embodiment, in the case which carries in RRC information, the receiving module It is also used to:

In a kind of possible embodiment, in the case which carries in PDCP PDU, the reception mould Block is also used to:

Based on the same inventive concept, the embodiment of the present invention provides a kind of UE, which can be UE described in Fig. 1-Fig. 4. The UE includes sending module and receiving module, in which:

In a kind of possible embodiment, the received instruction information of receiving module is carried in RRC information, or carries In PDCP PDU.

In a kind of possible embodiment, in the case which carries in RRC information, the sending module root The business data packet retransmitted is sent to target RAN node according to the instruction information, comprising:

In a kind of possible embodiment, in the case which carries in PDCP PDU, the sending module The business data packet retransmitted is sent to target RAN node according to the instruction information, comprising:

Based on the same inventive concept, the embodiment of the present invention provides a kind of computer readable storage medium, this is computer-readable Storage medium is stored with computer instruction, when computer instruction is run on computers, so that computer execution is aforementioned by mesh Mark the processing method for the business data packet that RAN node executes.

In the specific implementation process, computer readable storage medium includes: general serial bus USB (Universal Serial Bus flash drive, USB), mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic or disk etc. are various can store program The storage medium of code.

Based on the same inventive concept, the embodiment of the present invention provides a kind of computer readable storage medium, this is computer-readable Storage medium is stored with computer instruction, when computer instruction is run on computers, so that computer execution is aforementioned by UE The processing method of the business data packet of execution.

In the specific implementation process, computer readable storage medium includes: general serial bus USB, moves firmly The various storage mediums that can store program code such as disk, ROM, RAM, magnetic or disk.

Above-mentioned one or more technical solutions, at least have the following beneficial effects:

The apparatus embodiments described above are merely exemplary, wherein units/modules as illustrated by the separation member It may or may not be physically separated, the component shown as units/modules may or may not be Physical unit/module, it can it is in one place, or may be distributed in multiple network unit/modules.It can basis It is actual to need that some or all of the modules therein is selected to achieve the purpose of the solution of this embodiment.Ordinary skill people Member is without paying creative labor, it can understands and implements.

Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can It realizes by means of software and necessary general hardware platform, naturally it is also possible to pass through hardware.Based on this understanding, on Stating technical solution, substantially the part that contributes to existing technology can be embodied in the form of software products in other words, should Computer software product may be stored in a computer readable storage medium, such as ROM/RAM, magnetic disk, CD, including several fingers It enables and using so that a computer equipment (can be personal computer, server or the network equipment etc.) executes each implementation Method described in certain parts of example or embodiment.

Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features； And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and Range.

Claims

1. a kind of processing method of business data packet characterized by comprising

Target radio access network RAN node receives the business that user equipment (UE) is sent together when sending and connecting recovery request information Data packet；

The business data packet is sent to the processing of source RAN node by the target RAN node；Alternatively, the target RAN node exists Determination cannot parse the business data packet or determination fails when receiving the business data packet, and Xiang Suoshu UE sends instruction Information, the instruction information are used to indicate the UE and retransmit to the business data packet.

2. the method as described in claim 1, which is characterized in that send the business data packet in the target RAN node Before the RAN node of source, the method also includes:

The target RAN node is after receiving the business data packet, it is determined whether the business data packet can be parsed, if The business data packet then cannot be sent to the source RAN node to handle.

3. method according to claim 1 or 2, which is characterized in that the target RAN node sends the business data packet Give the processing of source RAN node, comprising:

The business data packet is sent to the source RAN node by the target RAN node, to be parsed by the source RAN node The business data packet obtains parsing Data Concurrent and send the parsing data；

Wherein, the parsing data are sent to core net node by the source RAN node；Or, the parsing data are by the source RAN node is sent to the target RAN node, and is sent to the core net node by the target RAN node.

4. method as claimed in claim 3, which is characterized in that be sent to core by the source RAN node in the parsing data In the case where heart net node, further includes:

The target RAN node receives the source RAN node and sends after the business data packet is sent to source RAN node Feedback instruction, the feedback indicates to be used to indicate the source RAN to the disposition of the business data packet.

5. the method as described in claim 1, which is characterized in that the instruction information includes the first information, second of information With one of the third information or a variety of, in which:

The first described information includes indicating that the target RAN node is not successfully received the information of the business data packet, indicates The target RAN node parses the information of the business data packet not successfully and the UE is notified to carry out the business data packet One or more information in the information of re-transmission；

Second of the information includes the security algorithm for indicating the target RAN node and the business data packet not being supported to use Information indicates that the target RAN node does not find the information of the UE context, indicates that the target RAN node is not supported The information for the Encryption Algorithm that the business data packet uses indicates that the target RAN node does not support the business data packet to adopt The information of protection algorithm integrallty and the compression association for indicating that the target RAN node does not support the business data packet to use One or more information in the information of view；

The third described information includes the information for indicating new key, the information for indicating new Encryption Algorithm, indicates newly complete Property protection algorism information and indicate new one or more of the information of compression protocol.

6. method as claimed in claim 5, which is characterized in that the instruction information is carried in radio resource control RRC message In, or carry in packet data convergence protocol data cell PDCP PDU.

7. method as claimed in claim 6, which is characterized in that in the case that the instruction information is carried in RRC information, institute It states after UE transmission instruction information, further includes:

Wherein, the rrc layer that the business data packet of the re-transmission is the UE is calculated using the new key, the new encryption One of method, the new protection algorithm integrallty and described new compression protocol or it is a variety of after, indicate the PDCP of the UE The business data packet that layer retransmits；Alternatively, the rrc layer that the business data packet of the re-transmission is the UE passes through interlayer interaction, triggering The business data packet of higher layer retransmission.

8. method as claimed in claim 6, which is characterized in that in the case that the instruction information is carried in PDCP PDU, After the transmission instruction information to the UE, further includes:

Wherein, the PDCP layer that the business data packet of the re-transmission is the UE is calculated using the new key, the new encryption One of method, the new protection algorithm integrallty, described new compression protocol or it is a variety of after, the business data packet of re-transmission； Alternatively, the PDCP layer that the business data packet of the re-transmission is the UE triggers the business datum of higher layer retransmission by interlayer interaction Packet.

9. a kind of processing method of business data packet characterized by comprising

User equipment (UE) sends business datum when sending connection recovery request information to target radio access network RAN node together Packet；

The UE reception target RAN node cannot parse the business data packet or determine to fail in determination receives institute The instruction information sent when stating business data packet, the instruction information are used to indicate the UE and carry out weight to the business data packet It passes；

10. method as claimed in claim 9, which is characterized in that the instruction information includes the first information, second of information With one of the third information or a variety of, in which:

11. method as claimed in claim 10, which is characterized in that the received instruction information carrying of UE is wirelessly providing Source controls in RRC information, or carries in packet data convergence protocol data cell PDCP PDU.

12. method as claimed in claim 11, which is characterized in that in the case that the instruction information is carried in RRC information, The UE sends the business data packet retransmitted to the target RAN node according to the instruction information, comprising:

The rrc layer of the UE application the new key, the new Encryption Algorithm, the new protection algorithm integrallty and One of described new compression protocol or it is a variety of after, indicate that the PDCP layer of the UE retransmits the business data packet； Alternatively,

13. method as claimed in claim 11, which is characterized in that the instruction information carries the situation in PDCP PDU Under, the UE sends the business data packet retransmitted to the target RAN node according to the instruction information, comprising:

The PDCP layer of the UE application the new key, the new Encryption Algorithm, the new protection algorithm integrallty, One of described new compression protocol or it is a variety of after, the business data packet is retransmitted；Alternatively,

14. a kind of processing unit of business data packet, which is characterized in that described device is target radio access network RAN node, institute Stating device includes processor and memory for storing instruction, wherein the processor is for reading in the memory Instruction, executes following process:

The business data packet is sent to the processing of source RAN node；Alternatively, determination cannot parse the business data packet or really Surely it fails when receiving the business data packet, Xiang Suoshu UE sends instruction information, described in the instruction information is used to indicate UE retransmits the business data packet.

15. device as claimed in claim 14, which is characterized in that the processor reads the instruction execution in the memory Further include executing following process before the business data packet is sent to this process of source RAN node:

After receiving the business data packet, it is determined whether the business data packet can be parsed, if cannot if by the industry Business data packet is sent to the source RAN node processing.

16. the device as described in claims 14 or 15, which is characterized in that the processor reads the instruction in the memory Execute the process that the business data packet is sent to the processing of source RAN node, comprising:

The business data packet is sent to the source RAN node, is obtained with parsing the business data packet by the source RAN node Data Concurrent must be parsed and send the parsing data；

17. device as claimed in claim 16, which is characterized in that be sent in the parsing data by the source RAN node In the case where core net node, the processor reads the instruction in the memory, further includes executing following process:

After the business data packet is sent to source RAN node, the feedback instruction that the source RAN node is sent is received, it is described Feedback instruction is used to indicate the source RAN to the disposition of the business data packet.

18. device as claimed in claim 14, which is characterized in that the instruction information includes the first information, second of letter One of breath and the third information are a variety of, in which:

19. device as claimed in claim 18, which is characterized in that the instruction information carrying disappears in radio resource control RRC In breath, or carry in packet data convergence protocol data cell PDCP PDU.

20. device as claimed in claim 19, which is characterized in that in the case that the instruction information is carried in RRC information, The processor read the instruction execution in the memory to the UE send instruction information process after, further include execute Following process:

21. device as claimed in claim 19, which is characterized in that the instruction information carries the situation in PDCP PDU Under, after the processor reads the process that the instruction execution in the memory sends instruction information to the UE, further include Execute following process:

22. a kind of user equipment (UE) characterized by comprising

Memory, for storing instruction；

Processor executes following process for reading the instruction in the memory:

Business data packet is sent together when sending connection recovery request information to target radio access network RAN node；Receive institute State target RAN node determination cannot parse the business data packet or determine fail receive the business data packet when hair The instruction information sent, the instruction information are used to indicate the UE and retransmit to the business data packet；According to the instruction Information sends the business data packet retransmitted to the target RAN node.

23. UE as claimed in claim 22, which is characterized in that the instruction information includes the first information, second of information With one of the third information or a variety of, in which:

24. UE as claimed in claim 23, which is characterized in that the received instruction information of UE is carried in radio resource It controls in RRC information, or carries in packet data convergence protocol data cell PDCP PDU.

25. UE as claimed in claim 24, which is characterized in that in the case that the instruction information is carried in RRC information, institute It states the instruction execution that processor is read in the memory and re-transmission is sent to the target RAN node according to the instruction information The process of business data packet, comprising:

The rrc layer for controlling the UE is calculated in the application new key, the new Encryption Algorithm, the new integrity protection One of method and the new compression protocol or it is a variety of after, indicate that the PDCP layer of the UE carries out weight to the business data packet It passes；Alternatively,

26. UE as claimed in claim 24, which is characterized in that in the case that the instruction information is carried in PDCP PDU, The processor reads the instruction execution in the memory and sends re-transmission to the target RAN node according to the instruction information Business data packet process, comprising:

The PDCP layer for controlling the UE is applying the new key, the new Encryption Algorithm, the new integrity protection One of algorithm, described new compression protocol or it is a variety of after, the business data packet is retransmitted；Alternatively,

27. a kind of processing unit of business data packet, which is characterized in that described device is target radio access network RAN node, packet It includes:

Sending module, for the business data packet to be sent to the processing of source RAN node；Alternatively, cannot be parsed in determination described Business data packet or determination fail when receiving the business data packet, send instruction information to UE, the instruction information is used The business data packet is retransmitted in instruction UE.

28. device as claimed in claim 27, which is characterized in that described device further includes determining module, in which:

The determining module, for before the business data packet is sent to source RAN node by the sending module, and it is described Receiving module is after receiving the business data packet, it is determined whether can parse the business data packet；

29. device as claimed in claim 27, which is characterized in that the instruction information includes the first information, second of letter One of breath and the third information are a variety of, in which:

The first described information includes indicating that target RAN node is not successfully received the information of the business data packet, indicates target In the information that RAN node parses the information of the business data packet not successfully and notice UE retransmits the business data packet One or more information；

Second of the information includes the letter for the security algorithm for indicating that target RAN node does not support the business data packet to use Breath indicates that target RAN node does not find the information of UE context, indicates that target RAN node does not support the business data packet The information of the Encryption Algorithm of use indicates the protection algorithm integrallty that target RAN node does not support the business data packet to use Information and indicate one or more of the information of compression protocol that target RAN node does not support the business data packet to use Information；

30. a kind of user equipment (UE), which is characterized in that including sending module and receiving module, in which:

The sending module, for sending business data packet together when sending connection recovery request information to target RAN node；

The receiving module, for receiving, target RAN node cannot parse the business data packet in determination or determination fails into Function receives the instruction information sent when the business data packet, the instruction information be used to indicate UE to the business data packet into Row retransmits；

31. UE as claimed in claim 30, which is characterized in that the instruction information includes the first information, second of information With one of the third information or a variety of, in which:

32. a kind of computer readable storage medium, it is characterised in that:

The computer-readable recording medium storage has computer instruction, when the computer instruction is run on a computing device When, so that computer equipment executes such as method of any of claims 1-8.

33. a kind of computer readable storage medium, it is characterised in that:

The computer-readable recording medium storage has computer instruction, when the computer instruction is run on a computing device When, so that computer equipment executes the method as described in any one of claim 9-13.