CN104105214B - A kind of data transmission method and device - Google Patents
A kind of data transmission method and device Download PDFInfo
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- CN104105214B CN104105214B CN201310111565.2A CN201310111565A CN104105214B CN 104105214 B CN104105214 B CN 104105214B CN 201310111565 A CN201310111565 A CN 201310111565A CN 104105214 B CN104105214 B CN 104105214B
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Abstract
The invention discloses a kind of data transmission method and device.Its method includes：Random access request is initiated to access network node；After the uplink authorization information for receiving access network node return, generation is not more than the packet for the stock number that the uplink authorization information is indicated and is sent to base station, upstream data to be sent and the identification information of the core-network side data link pre-established are carried in the packet, to indicate by the core-network side data link transmission pre-established upstream data to be sent.The data link of access net side need not be set up in transmitting procedure（Such as DRB）With the data link of core-network side（Such as GTP tunnel）, therefore reduce foundation and safeguard the signaling needed for user face data link, overhead is reduced, system effectiveness is improved.
Description
Technical field
The present invention relates to communication technical field, more particularly to a kind of data transmission method and device.
Background technology
UMTS（Universal Mobile Telecommunications System, UMTS）And length
Phase evolution（Long Term Evolution, LTE）The user plane data transfer of system is to be based respectively on grouping system（Packet
System, PS）Carrying and evolved packet system（Evolved Packet System, EPS）Carrying completes data route.EPS
Carrying includes radio bearer and GTP（GPRS Tunneling Protocol, GPRS Tunnel Protocol）Tunnel.Radio bearer refers to
The carrying of wireless network side, i.e. Data Radio Bearer（Data Radio Bearer, DRB）.GTP tunnel is carried by S1（It is evolved
Base station（eNB）Carrying between SGW）And S5/S8 carryings（Carrying between SGW and PGW）Composition.Wherein, GTP is one group
It is IP-based, in global system for mobile communications（Global System of Mobile communication, GSM）With
The communications protocol of general packet radio service (General Packet Radio Service, GPRS) is supported in UMTS network.
SGW（SGSN Serving Gateway）It is SGSN（Serving GPRS Support Node）Gateway, SGSN is GPRS
（General Packet Radio Service, general packet radio service）Serving GPRS support node.PGW（Packet Date
Network Gateway）It is grouped data network gateway.
S1 carryings, which are called, does S1-U carryings.S1-U carries two ports, and downlink port is in radio network controller
（Radio Network Controller, RNC）/ eNB, uplink port is in SGW.
In PS/EPS loading establishing process, the lower line identifier of RNC/eNB distribution S1-U carryings（RNC/eNB user plane
The termination point of a tunnel mark of transport Layer address+RNC/eNB S1-U carryings（Tunnel Endpoint IDentifier, TEID））；
The upper line identifier of SGW distribution S1-U carryings（The TEID of SGW user plane transport Layer address+SGW S1-U carryings）.Wherein, user
Face transport Layer address is IP address.
Machine type（Machine-type communication, MTC）Communicate as a kind of new communication theory, its
Purpose is to organically combine a variety of different types of communication technologys, such as：Machine-to-machine communication, apparatus control communication, man-machine friendship
Mutual communication, mobile interchange communication, so as to promote social production and the development of life style.MTC communication is also known as machinery compartment
（Machine-to-machine,M2M）Communication or Internet of Things.
At present, have using existing mobile communications network to support the core-network side solution of MTC communication.But without
The access net side solution of MTC communication is supported using existing mobile communications network.Only carried out between MTC terminal and network side
The information transfer of small data quantity, if realizing the data of MTC communication according to the data transfer mode of existing mobile communications network
Transmission, can produce larger signaling consumption, cause system effectiveness relatively low.
The content of the invention
It is an object of the invention to provide a kind of data transmission method and device, solved with the access net side for realizing MTC communication
Scheme.
The purpose of the present invention is achieved through the following technical solutions：
A kind of data transmission method, including：
Random access request is initiated to access network node；
Receive after the uplink authorization information that the access network node is returned, generation is not more than the uplink authorization information and indicated
Stock number packet and be sent to the access network node, carried in the packet upstream data to be sent and in advance
The identification information of the core-network side data link of foundation, to indicate by the core-network side data link transmission pre-established
The upstream data to be sent.
A kind of data transmission method, including：
The random access request that receiving terminal is sent；
Uplink authorization is carried out for the terminal, and uplink authorization information is sent to the terminal；
Receive the packet for being not more than the stock number that the uplink authorization information is indicated of the terminal generation, the data
Upstream data to be sent and the identification information of the core-network side data link pre-established are carried in bag；
Send described to core net node by the core-network side data link pre-established corresponding to the identification information
The upstream data carried in packet.
A kind of terminal, including：
Stochastic accessing processing module, for initiating random access request to access network node；
Data transmission module, for receiving after the uplink authorization information that the access network node is returned, generation is not more than institute
State the packet of the stock number of uplink authorization information instruction and be sent to the access network node, carry pending in the packet
The identification information of the upstream data sent and the core-network side data link pre-established, to indicate by the core pre-established
Upstream data to be sent described in heart net side data link transmission.
A kind of access network node, including：
Stochastic accessing processing module, the random access request sent for receiving terminal is that the terminal carries out up award
Power, and send uplink authorization information to the terminal；
Data transmission module, the stock number for being not more than the uplink authorization information instruction for receiving the terminal generation
Packet, upstream data to be sent and the mark letter of the core-network side data link pre-established are carried in the packet
Breath, the packet is sent by the core-network side data link pre-established corresponding to the identification information to core net node
The upstream data of middle carrying.
Technical scheme provided in an embodiment of the present invention, terminal in the random access procedure sends upstream data to be sent
To access network node, and transmit to access network node instruction user the core-network side Data-Link pre-established of the upstream data
The upstream data is sent to core net node by road, the core-network side data link that access network node is indicated by terminal.Transmission
During need not set up access net side data link（Such as DRB）With the data link of core-network side（Such as GTP tunnel）, because
This reduces foundation and safeguards the signaling needed for user face data link, reduces overhead, improves system effectiveness.
Brief description of the drawings
Fig. 1 is end side method flow diagram provided in an embodiment of the present invention；
Fig. 2 is access network node side provided in an embodiment of the present invention method flow diagram；
Fig. 3 is the method signaling diagram provided in an embodiment of the present invention applied to LTE system；
Fig. 4 is the method signaling diagram provided in an embodiment of the present invention applied to TD-SCDMA system；
Fig. 5 is the method signaling diagram provided in an embodiment of the present invention applied to WCDMA system；
Fig. 6 is terminal structure schematic diagram provided in an embodiment of the present invention；
Fig. 7 is access network node schematic diagram provided in an embodiment of the present invention.
Embodiment
Support core net one kind of MTC communication possible solution to be based on fast using existing mobile communications network
Fast path（Fast Path）Or it is connectionless（Connectionless）Transmission plan.Based on Fast Path or
In Connectionless transmission plans：
Adhered to or tracing section updating in terminal（Tracking Area Update, TAU）During, mobility pipe
Manage entity（MME）Core-network side data link is set up for terminal, and resource identification, the money are distributed for the core-network side data link
Source is identified has mapping relations between the upper line identifier of core-network side data link.MME is by the core-network side data link
Resource identification is sent to terminal, and terminal preserves the resource identification.
By taking LTE system as an example, core-network side data link can be GTP tunnel, and above-mentioned resource identification can be expressed as SGW
Carrying（SGW Bearer）Index mark（ID）.Mapping between resource identification and the upper line identifier of core-network side data link is closed
System can be presented as：TEID that SGW Bearer indexes ID and SGW S1-U are carried and SGW user plane transport Layer address are reflected
Penetrate relation.Core-network side data link can also be public data network（Public Data Network, PDN）Link, above-mentioned money
Source mark can be expressed as connection identifier（CONNECTION ID）.Resource identification and the upper line identifier of core-network side data link
Between mapping relations can be presented as uplink port identification information and/or upper row address that CONNECTION ID and PDN is linked
Information.
The activationary time of above-mentioned core-network side data link is by Timer Controlling.
For access net side, the embodiments of the invention provide a kind of data transmission method, corresponding terminal and access network section
Point.In the embodiment of the present invention, upstream data to be sent is sent to access network node by terminal in the random access procedure, and to
Access network node instruction user transmits the core-network side data link pre-established of the upstream data, and access network node passes through end
The upstream data is sent to core net node by the core-network side data link that end is indicated.Access need not be set up in transmitting procedure
The data link of net side（Such as DRB）With the data link of core-network side（Such as GTP tunnel）, therefore reduce foundation and safeguard use
Signaling needed for the data link of family face, reduces overhead, improves system effectiveness.
What the core-network side data link pre-established in the embodiment of the present invention was set up during terminal attachment or TAU
Core-network side data link.
Technical scheme provided in an embodiment of the present invention be particularly suitable for use in small data quantity transmitting uplink data application scenarios.
Small data quantity business of such as MTC communication, intelligent terminal etc..
Particularly, for other communication scenes outside MTC communication, it can be set up during terminal attachment or TAU
During core-network side data link, resource identification is distributed for the core-network side data link.Likewise, terminal preserves the resource mark
Know, the resource identification and the upper line identifier of core-network side data link have mapping relations.
In the embodiment of the present invention, small data quantity refers to the data volume for being less than the data-quantity threshold for being used to judge data volume size
Size.The specific value of the data-quantity threshold can by emulating, making an appointment, high-level signaling configuration etc. mode determine.
Below in conjunction with accompanying drawing, technical scheme provided in an embodiment of the present invention is described in detail.
Fig. 1 show the method flow that end side provided in an embodiment of the present invention carries out data transmission, its side of implementing
Formula includes：
Step 100, to access network node initiate random access request.
Step 110, receive the access network node return uplink authorization information after, generation be not more than the uplink authorization information
The packet of the stock number of instruction is simultaneously sent to the access network node.
Wherein, upstream data to be sent and the mark of the core-network side data link pre-established are carried in the packet
Information, to indicate upstream data that the core-network side data link transmission pre-established by this is to be sent.
In the embodiment of the present invention, the identification information of core-network side data link both can be the money of core-network side data link
The upper line identifier of source mark or core-network side data link.Exemplified by being GTP tunnel, the identification information of the GTP tunnel
Both it can be the TEID of SGW Bearer index ID or SGW S1-U carryings, and can also be SGW user plane transport layer
Address.So that PDN is linked as an example, the identification information of the PDN both can be the up of CONNECTION ID or PDN link
Port identification information, can also be the upper row address information of PDN connections.
But in security consideration, it is preferred that resource identification is transmitted in a network as identification information.
In the embodiment of the present invention, if terminal has pre-established multiple core-network side data link, that is, preserve multiple pre-
The identification information for the core-network side data link first set up.The core-network side Data-Link that can then select an identification information corresponding
Road carries out transmitting uplink data.If terminal only preserves an identification information, the core net for selecting the identification information corresponding
Side data link carries out transmitting uplink data.
Technical scheme provided in an embodiment of the present invention can apply to LTE system, the CDMA of UMTS time division synchronous
（Time Division-Synch ronous Code Division Multiple Access, TD-SCDMA）System, UMTS
WCDMA（Wideband Code Division Multiple Access, WCDMA）System etc..
In LTE system, access network node is eNB.In the umts system, access network node is base station and RNC.
If method provided in an embodiment of the present invention is applied in LTE system, the packet of generation is sent to access
After net node, terminal receives the packet for being used to complete contention resolved of access network node return.This is used to complete competition solution
The identification information of the above-mentioned core-network side data link pre-established is carried in packet certainly；What if access network node was returned
The identification information of the core-network side data link pre-established and the mark of the core-network side data link pre-established preserved
Information is identical, it is determined that completing contention resolved.If it is different, then contention resolved fail, can again initiating random access procedure with
Just upstream data is resend.
If method provided in an embodiment of the present invention is applied in LTE system or WCDMA system, sent out to access network node
Rise before random access request, terminal can also determine the data volume size of upstream data to be sent, when it is determined that to be sent
The data volume of upstream data, which is more than, extends the corresponding data-quantity threshold of leading code character, the lead code in the leading code character of selection extension,
By sending the lead code in the leading code character of extension to access network node initiation random access request.
In original random access procedure, terminal, can be according to the uplink authorization information after uplink authorization information is received
The stock number of instruction generates the packet for setting up RRC connections.And in the embodiment of the present invention, receive after uplink authorization information
RRC connections are not set up, but upstream data and above-mentioned identification information are sent by packet.So need the data to packet
Attribute is extended, and is defined upstream data identification information and is used to refer to the packet for carrying upstream data to be sent.Phase
Answer, based on any of the above-described end side embodiment of the method, it is preferred that the stock number that no more than above-mentioned uplink authorization information is indicated
Upstream data identification information can also be carried in packet, so that access network node determines to be somebody's turn to do according to the upstream data identification information
Upstream data to be sent is carried in packet.
Based on any of the above-described end side embodiment of the method, the stock number indicated in uplink authorization information is less than number waiting for transmission
During according to amount, upstream data to be sent can be segmented, the transmitting procedure provided by the multiple embodiments of the present invention is sent
Upstream data.
Based on any of the above-described end side embodiment of the method, when the stock number indicated in uplink authorization information is larger, generation is not
The specific implementation of packet of the stock number indicated more than uplink authorization information can be：By multiple upper line numbers to be sent
It is not more than according to composition in the packet for the stock number that the uplink authorization information is indicated, the packet and also carries each to be sent
The identification information of data link that pre-establishes of the corresponding core net of upstream data.
Fig. 2 show access network node side provided in an embodiment of the present invention and carries out data transmission method flow, and it is specific real
Existing mode includes：
The random access request that step 200, receiving terminal are sent.
Step 210, for the terminal carry out uplink authorization, and to the terminal send uplink authorization information.
Step 220, the packet for being not more than the stock number that the uplink authorization information is indicated for receiving terminal generation.
Upstream data to be sent and the identification information of the core-network side data link pre-established are carried in the packet.
Step 230, sent out to core net node by the core-network side data link pre-established corresponding to the identification information
Send the upstream data carried in packet.
If the identification information is the resource identification that core network data is linked, specifically, access network node is according to resource mark
Know the mapping relations with the upper line identifier of core-network side data link, obtain the upper line identifier of the core-network side data link, root
According to the up identification information upstream data is sent in the core-network side data link to core net node.
As described above, technical scheme provided in an embodiment of the present invention can apply to LTE system, UMTS TD-SCDMA systems
System, UMTS WCDMA system etc..If applied in UMTS system, then access network node is base station and RNC.Accordingly, by
The random access request that base station receiving terminal is sent, carries out uplink authorization, and send uplink authorization letter to the terminal for the terminal
Breath.After the no more than packet for the stock number that the uplink authorization information is indicated that terminal generation is received by base station, by the data
Bag is sent to RNC, is sent out from RNC by the core-network side data link pre-established corresponding to the identification information to core net node
Send the upstream data carried in packet.
If method provided in an embodiment of the present invention is applied in LTE system, it is no more than up that receiving terminal is generated
After the packet for the stock number that authorization message is indicated, access network node sends the data for completing contention resolved to terminal
Bag.This is used for the identification information for completing to carry the above-mentioned core-network side data link pre-established in the packet of contention resolved.
If method provided in an embodiment of the present invention is applied in LTE system or WCDMA system, what receiving terminal was sent
The specific implementation of random access request can be：Receive the leading as the extension of random access request of the terminal transmission
Lead code in code character.The specific implementation for sending the upstream data carried in the packet to core net node can be with
It is：According to the lead code in the leading code character of extension, determine to carry in the packet after upstream data to be sent, pass through
The core-network side data link pre-established corresponding to the identification information sends the upstream data to core net node.
Based on any of the above-described access network node side embodiment of the method, it is preferred that can also be taken in the packet that terminal is sent
The upstream data identification information carried in band upstream data identification information, the packet that access network node is sent according to terminal, really
Carried in the fixed packet after upstream data to be sent, pass through the core-network side Data-Link pre-established corresponding to identification information
Road direction core net node sends the upstream data.
Based on any of the above-described access network node side embodiment of the method, carry multiple pending in the packet that the terminal is sent
The data link that the packet core net corresponding with each upstream data to be sent of the upstream data composition sent is pre-established
Identification information, the upstream data carried in the packet is sent to core net node, including：Determined according to identification information every
The corresponding core-network side data link pre-established of individual upstream data to be sent；Pass through each upper line number to be sent respectively
According to the corresponding core-network side data link pre-established the upstream data is sent to core net node.
By taking the data transfer implementation in LTE system as an example, the embodiment of the present invention is used to terminal and access network node
The method of offer coordinates the specific implementation implemented to be described in detail.Its process is as shown in figure 3, specifically include following behaviour
Make：
Step 300, terminal select lead code according to the size of upstream data waiting for transmission, and by Msg1 by before selection
Leading code is sent to eNB, with initiating random access procedure.
In the embodiment, upstream data waiting for transmission is small data quantity data.
If specifically, the upstream data is just to pass, the size of upstream data is not more than B group lead codes（preamble）It is right
The data-quantity threshold messageSizeGroupA answered, then from A group lead codes（Group A）One preamble of middle random selection；
Otherwise in B group lead codes（Group B）One preamble of middle random selection.
If small data is to retransmit, the leading code character of identical, the random selection one in this group when selection and just biography
Preamble initiates Stochastic accessing.
In view of in some scenarios, the size of upstream data to be sent is with respect to RRC connection request
（RRCconnectionrequest）Message, RRC are reconnected（RRCreconnectionrequest）Message is larger, it is desirable to be able to
ENB distributes larger stock number to have sent data as early as possible.Optionally, it can also allocate in advance comprising at least one lead code
Dispatch C group lead codes（Group C, that is, extend leading code character）, network side can be by broadcast configuration terminal using Group C
Threshold value messageSizeGroupB（Extend the corresponding data amount threshold values of leading code character）, power excursion
（messagePowerOffsetGroupC）, then, when upstream data to be sent be more than messageSizeGroupB, and
Power meet PCMAX-preambleInitialReceivedTargetPower-deltaPreambleMsg3-
messagePowerOffsetGroupB>0.Then a preamble is randomly choosed in Group C to send.
Step 310, after eNB receives UE preamble, on leading code character according to where this preamble is carried out
Row is authorized, and uplink authorization information is sent into terminal by Msg2 message, and distribute Temporary Cell Radio Network temporary mark（C-
RNTI）For Msg3 scramblings.
If the lead code is the lead code in Group C, eNB is the larger stock number of terminal distribution, and determines end
End will send upstream data in the random access procedure.The corresponding stock number sizes of Group C can be needed by emulation or reality
Ask determination.
The stock number size that the uplink authorization information of step 320, terminal in Msg2 is indicated, carries out Msg3 media interviews
Key-course user grouping data cell（MAC PDU）Group bag, including upstream data to be sent and determine be used for pass
The identification information of the core-network side data link of the defeated upstream data, the C- distributed in being sent on Msg3 transmission opportunity with Msg2
The Msg3 of RNTI scramblings.
Wherein, terminal determine be used for transmit the upstream data core-network side data link can with but be not limited only to be eventually
Hold the data link set up during attaching process or TAU with core-network side.
Optionally, upstream data amount identification information is also carried in above-mentioned Msg3, is to treat with indicate to carry in the eNB Msg3
The upstream data of transmission, rather than rrc message.
For example and without limitation, the LCID domains in the subheader in MAC SDU or MAC CE can be indicated
Value is used as upstream data amount identification information.
, can be by each upstream data to be sent and right if multiple upstream datas to be sent are transmitted in Msg3
The identification information for the core-network side data link answered is encapsulated in a PDU MAC CE.
Step 330, when eNB receive terminal transmission Msg3 after, by being sent to terminal for completing contention resolved
The identification information of above-mentioned core-network side data link is carried in MAC PDU in Msg4, Msg4.
Step 340, terminal judge whether the identification information that the identification information carried in Msg4 and terminal are preserved is identical, if
Identical, then contention resolved is completed, and notifies eNB to perform step 350, otherwise, return to step 300, and notifies eNB not send in Msg3
Upstream data.
Step 350, eNB are by core-network side data link corresponding to the identification information carried in Msg3 to core net node
Send the upstream data carried in Msg3.
Specifically, eNB according to the upstream data identification information carried, determines to carry to be sent upper in Msg3 in the Msg3
Row data, and then according to the identification information carried in Msg3, determine the ground of the corresponding core net node of core-network side data link
Location, is linked to the corresponding core net node in address of the core net node by the core network data and sends upstream data.If
ENB determines that terminal will send upstream data in the random access procedure in the step 310, then in step 350, can also not
Determined to carry upstream data to be sent in the Msg3 according to upstream data identification information.
If terminal still has upstream data to need transmission, above-mentioned flow is repeated.
It is real using the present invention to terminal and access network node by taking the data transfer implementation in TD-SCDMA system as an example
The method for applying example offer coordinates the specific implementation implemented to be described in detail.Its process is as shown in figure 4, specifically include as follows
Operation：
Step 400, terminal send SYNC-UL to base station, with initiating random access procedure.
Step 410, base station return to FPACH to terminal.
Step 420, terminal select public E-RNTI according to the subframe numbers or frame number of initiating E-RUCCH, and pass through E-
The public E-RNTI of selection is sent to base station by RUCCH, initiates to carry the SI processes of schedule information.
Terminal distribution uplink authorization is given in step 430, base station in descending E-AGCH channels, and uplink authorization information is sent
To terminal.
The stock number size that step 440, terminal are indicated according to uplink authorization information carries out MAC PDU groups and wrapped, including
Upstream data to be sent and the identification information for being used to transmit the core-network side data link of the upstream data determined, and in E-
Base station is sent the packet on PUCH channels.
Wherein, terminal determine be used for transmit the upstream data core-network side data link can with but be not limited only to be eventually
Hold the data link set up during attaching process or TAU with core-network side.
Optionally, upstream data amount identification information is also carried in above-mentioned MAC PDU datas bag, to indicate the base station packet
Middle carrying is upstream data to be sent, rather than rrc message.
For example and without limitation, the LCID domains in the subheader in MAC SDU or MAC CE can be indicated
Value is used as upstream data amount identification information.
, can will be each to be sent up if multiple upstream datas to be sent are transmitted in above-mentioned MAC PDU
The identification information of data and corresponding core-network side data link is encapsulated in a PDU MAC CE.
Step 450, base station are by FP processes by upstream data to be sent and the mark of corresponding core-network side data link
Know information and be sent to RNC.
Step 460, RNC are sent in Msg3 to core net node by core-network side data link corresponding to identification information and taken
The upstream data of band.
If terminal still has upstream data to need transmission, above-mentioned flow is repeated.
By taking the data transfer implementation in WCDMA system as an example, terminal and access network node are implemented using the present invention
The method that example is provided coordinates the specific implementation implemented to be described in detail.Its process is as shown in figure 5, specifically include following behaviour
Make：
Step 500, terminal select lead code according to the size of upstream data waiting for transmission, and by Msg1 by before selection
Leading code is sent to base station, with initiating random access procedure.
In the embodiment, upstream data waiting for transmission is small data quantity data.
If specifically, the upstream data is just to pass, the size of upstream data is not more than the corresponding data volume of B group lead codes
Threshold value messageSizeGroupA, then from A group lead codes（Group A）One preamble of middle random selection；Otherwise in B groups
Lead code（Group B）One preamble of middle random selection.
If small data is to retransmit, the leading code character of identical, the random selection one in this group when selection and just biography
Preamble initiates Stochastic accessing.
In view of in some scenarios, the size of upstream data to be sent is with respect to RRC connection request
（RRCconnectionrequest）Message, RRC are reconnected（RRCreconnectionrequest）Message is larger, it is desirable to be able to
ENB distributes larger stock number to have sent data as early as possible.Optionally, it can also allocate in advance comprising at least one lead code
Dispatch C group lead codes（Group C）, network side can pass through broadcast configuration terminal use Group C threshold value
MessageSizeGroupB, power excursion（messagePowerOffsetGroupC）, then, when upstream data to be sent
More than messageSizeGroupB, and power meet PCMAX-preambleInitialReceivedTargetPower-
deltaPreambleMsg3–messagePowerOffsetGroupB>0.One is then randomly choosed in Group C
Preamble is sent.
Step 510, after eNB receives UE preamble, on leading code character according to where this preamble is carried out
Row is authorized, and uplink authorization information is sent into terminal by AICH channels.
If the lead code is the lead code in Group C, eNB is the larger stock number of terminal distribution, and determines end
End will send upstream data in the random access procedure.The corresponding stock number sizes of Group C can be needed by emulation or reality
Ask determination.
The stock number size that step 520, terminal are indicated according to uplink authorization information, carries out MAC-i PDU group bag, wherein
Including upstream data to be sent and the identification information for being used to transmit the core-network side data link of the upstream data determined, and
The packet is sent by the E-DCH channels of broadcast configuration.
Wherein, terminal determine be used for transmit the upstream data core-network side data link can with but be not limited only to be eventually
Hold the data link set up during attaching process or TAU with core-network side.
Optionally, upstream data amount identification information is also carried in above-mentioned MAC-i PDU, to indicate to take in the packet of base station
Band is upstream data to be sent, rather than rrc message.
For example and without limitation, the LCID domains in the subheader in MAC SDU or MAC CE can be indicated
Value is used as upstream data amount identification information.
, can be by each upstream data to be sent if multiple upstream datas to be sent are transmitted in MAC PDU
It is encapsulated in the identification information of corresponding core-network side data link in a PDU MAC CE.
Step 530, base station are by FP processes by upstream data to be sent and the mark of corresponding core-network side data link
Know information and be sent to RNC.
Step 540, RNC are sent in Msg3 to core net node by core-network side data link corresponding to identification information and taken
The upstream data of band.
If terminal still has upstream data to need transmission, above-mentioned flow is repeated.
Based on the inventive concept same with method, the embodiment of the present invention also provides a kind of terminal, its structure as shown in fig. 6,
Specifically include：
Stochastic accessing processing module 601, for initiating random access request to access network node；
Data transmission module 602, for receiving after the uplink authorization information that the access network node is returned, generation is not more than
The packet for the stock number that the uplink authorization information is indicated simultaneously is sent to the access network node, carries and treats in the packet
The identification information of the upstream data of transmission and the core-network side data link pre-established, to indicate what is pre-established described in
Upstream data to be sent described in core-network side data link transmission.
It is preferred that in LTE system, the packet of generation is sent to the access network section by the data transmission module 602
After point, the Stochastic accessing processing module 601 is additionally operable to：
The packet for being used to complete contention resolved that the access network node is returned is received, it is described to be used to complete contention resolved
Packet in carry described in the identification information of core-network side data link that pre-establishes；
If the identification information for the core-network side data link pre-established that the access network node is returned and preservation
The identification information of the core-network side data link pre-established is identical, it is determined that completing contention resolved.
It is preferred that in LTE system or WCDMA system, it is described random before initiating random access request to access network node
Access processing module 601 is additionally operable to：
Determine that the data volume of the upstream data to be sent is more than and extend the corresponding data-quantity threshold of leading code character, selection
Lead code in the leading code character of extension；
To access network node initiate random access request when, the Stochastic accessing processing module specifically for：
By sending the lead code in the leading code character of extension to access network node initiation random access request.
Based on any of the above-described end side embodiment, it is preferred that the stock number that no more than described uplink authorization information is indicated
Upstream data identification information is also carried in packet.
Based on any of the above-described end side embodiment, it is preferred that generation is not more than the resource that the uplink authorization information is indicated
During the packet of amount, the data transmission module 602 specifically for：
Multiple upstream data compositions to be sent are not more than to the packet for the stock number that the uplink authorization information is indicated,
The mark letter for the data link that each corresponding core net of upstream data to be sent is pre-established also is carried in the packet
Breath.
The specific implementation of terminal embodiment is referred to the description of above-mentioned end side embodiment of the method, no longer goes to live in the household of one's in-laws on getting married here
State.
Based on the inventive concept same with method, the embodiment of the present invention also provides a kind of access network node, its structure such as Fig. 7
It is shown, specifically include：
Stochastic accessing processing module 701, the random access request sent for receiving terminal is that the terminal progress is up
Authorize, and uplink authorization information is sent to the terminal；
Data transmission module 702, the money for being not more than the uplink authorization information instruction for receiving the terminal generation
Upstream data to be sent and the mark of the core-network side data link pre-established are carried in the packet of source amount, the packet
Know information, the number is sent to core net node by the core-network side data link pre-established corresponding to the identification information
According to the upstream data carried in bag.
It is preferred that in LTE system, the data transmission module receives the no more than uplink authorization of the terminal generation
After the packet for the stock number that information is indicated, the Stochastic accessing processing module 701 is additionally operable to：
Sent to the terminal in the packet for completing contention resolved, the packet for completing contention resolved
The identification information of the core-network side data link pre-established described in carrying.
It is preferred that in LTE system or WCDMA system, it is described random when receiving the random access request that the terminal is sent
Access processing module 701 specifically for：
Receive the lead code in the leading code character of extension as random access request that the terminal is sent；
The data transmission module 702 specifically for：
According to the lead code in the leading code character of extension, determine to carry upstream data to be sent in the packet
Afterwards, the upper line number is sent to core net node by the core-network side data link pre-established corresponding to the identification information
According to.
Based on any of the above-described access network node embodiment, it is preferred that also carrying decimal in the packet that the terminal is sent
According to amount identification information, the small data quantity refers to the data volume size less than data-quantity threshold, sends described to core net node
During the upstream data carried in packet, the data transmission module 702 specifically for：
The upstream data identification information carried in the packet sent according to the terminal, determines the number that the terminal is sent
According to being carried in bag after upstream data to be sent, pass through the core-network side data link pre-established corresponding to the identification information
The upstream data is sent to core net node.
Based on any of the above-described access network node embodiment, it is preferred that carrying multiple treat in the packet that the terminal is sent
The Data-Link that the packet core net corresponding with each upstream data to be sent of the upstream data composition of transmission is pre-established
The identification information on road, when sending the upstream data carried in the packet to core net node, the data processing module 702
Specifically for：
Each corresponding core-network side data link pre-established of upstream data to be sent is determined according to identification information；
Respectively by the corresponding core-network side data link pre-established of each upstream data to be sent to core net
Node sends the upstream data.
The specific implementation of base station embodiment is referred to the description of above-mentioned base station side embodiment of the method, no longer goes to live in the household of one's in-laws on getting married here
State.
It should be understood by those skilled in the art that, embodiments of the invention can be provided as method, system or computer program
Product.Therefore, the present invention can be using the reality in terms of complete hardware embodiment, complete software embodiment or combination software and hardware
Apply the form of example.Moreover, the present invention can be used in one or more computers for wherein including computer usable program code
Usable storage medium（Including but not limited to magnetic disk storage, CD-ROM, optical memory etc.）The computer program production of upper implementation
The form of product.
The present invention is with reference to method according to embodiments of the present invention, equipment（System）And the flow of computer program product
Figure and/or block diagram are described.It should be understood that can be by every first-class in computer program instructions implementation process figure and/or block diagram
Journey and/or the flow in square frame and flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided
The processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce
A raw machine so that produced by the instruction of computer or the computing device of other programmable data processing devices for real
The device for the function of being specified in present one flow of flow chart or one square frame of multiple flows and/or block diagram or multiple square frames.
These computer program instructions, which may be alternatively stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory, which is produced, to be included referring to
Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one square frame of block diagram or
The function of being specified in multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that in meter
Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented processing, thus in computer or
The instruction performed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in individual square frame or multiple square frames.
, but those skilled in the art once know basic creation although preferred embodiments of the present invention have been described
Property concept, then can make other change and modification to these embodiments.So, appended claims are intended to be construed to include excellent
Select embodiment and fall into having altered and changing for the scope of the invention.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (20)
1. a kind of data transmission method, it is characterised in that including：
Random access request is initiated to access network node；
Receive after the uplink authorization information that the access network node is returned, generation is not more than the money that the uplink authorization information is indicated
The packet of source amount is simultaneously sent to the access network node, and upstream data to be sent is carried in the packet and is pre-established
Core-network side data link identification information, to indicate by described in the core-network side data link transmission pre-established
Upstream data to be sent.
2. according to the method described in claim 1, it is characterised in that in Long Term Evolution LTE system, the packet of generation is sent
After the access network node, this method also includes：
Receive the packet for being used to complete contention resolved that the access network node is returned, the number for being used to complete contention resolved
According to the identification information of the core-network side data link pre-established described in carrying in bag；
If the identification information for the core-network side data link pre-established that the access network node is returned is advance with preservation
The identification information of the core-network side data link of foundation is identical, it is determined that completing contention resolved.
3. according to the method described in claim 1, it is characterised in that in LTE system or WCDMA WCDMA system, to
Access network node is initiated before random access request, and this method also includes：
Determine that the data volume of the upstream data to be sent is more than and extend the corresponding data-quantity threshold of leading code character, selection is described
Extend the lead code in leading code character；
Random access request is initiated to access network node, including：
By sending the lead code in the leading code character of extension to access network node initiation random access request.
4. the method according to any one of claims 1 to 3, it is characterised in that be not more than the uplink authorization information and indicate
Stock number packet in also carry upstream data identification information.
5. the method according to any one of claims 1 to 3, it is characterised in that generation is not more than the uplink authorization information
The packet of the stock number of instruction, including：
Multiple upstream data compositions to be sent are not more than to the packet for the stock number that the uplink authorization information is indicated, it is described
The identification information for the data link that each corresponding core net of upstream data to be sent is pre-established also is carried in packet.
6. a kind of data transmission method, it is characterised in that including：
The random access request that receiving terminal is sent；
Uplink authorization is carried out for the terminal, and uplink authorization information is sent to the terminal；
Receive in the packet for being not more than the stock number that the uplink authorization information is indicated of the terminal generation, the packet
Carry the identification information of upstream data to be sent and the core-network side data link pre-established；
The data are sent to core net node by the core-network side data link pre-established corresponding to the identification information
The upstream data carried in bag.
7. method according to claim 6, it is characterised in that in LTE system, receive the terminal generation is not more than institute
After the packet for the stock number for stating uplink authorization information instruction, this method also includes：
Send in the packet for completing contention resolved, the packet for completing contention resolved and carry to the terminal
The identification information of the core-network side data link pre-established.
8. method according to claim 6, it is characterised in that in LTE system or WCDMA system, receives the terminal hair
The random access request sent, including：Before receiving in the leading code character of extension as random access request that the terminal is sent
Leading code；
The upstream data carried in the packet is sent to core net node, including：
According to the lead code in the leading code character of extension, determine to carry in the packet after upstream data to be sent, lead to
Cross the core-network side data link pre-established corresponding to the identification information and send the upstream data to core net node.
9. the method according to any one of claim 6~8, it is characterised in that also taken in the packet that the terminal is sent
Band upstream data identification information, the upstream data carried in the packet is sent to core net node, including：
The upstream data identification information carried in the packet sent according to the terminal, determines the packet that the terminal is sent
It is middle to carry after upstream data to be sent, by the core-network side data link pre-established corresponding to the identification information to core
Heart net node sends the upstream data.
10. the method according to any one of claim 6~8, it is characterised in that carried in the packet that the terminal is sent
What the packet core net corresponding with each upstream data to be sent of multiple upstream data compositions to be sent was pre-established
The identification information of data link, the upstream data carried in the packet is sent to core net node, including：
Each corresponding core-network side data link pre-established of upstream data to be sent is determined according to identification information；
Respectively by the corresponding core-network side data link pre-established of each upstream data to be sent to core net node
Send the upstream data.
11. a kind of terminal, it is characterised in that including：
Stochastic accessing processing module, for initiating random access request to access network node；
Data transmission module, for receiving after the uplink authorization information that the access network node is returned, generation is not more than on described
The packet for the stock number that row authorization message is indicated simultaneously is sent to the access network node, carries to be sent in the packet
The identification information of upstream data and the core-network side data link pre-established, to indicate by the core net pre-established
Upstream data to be sent described in side data link transmission.
12. terminal according to claim 11, it is characterised in that in LTE system, the data transmission module is by generation
Packet is sent to after the access network node, and the Stochastic accessing processing module is additionally operable to：
Receive the packet for being used to complete contention resolved that the access network node is returned, the number for being used to complete contention resolved
According to the identification information of the core-network side data link pre-established described in carrying in bag；
If the identification information for the core-network side data link pre-established that the access network node is returned is advance with preservation
The identification information of the core-network side data link of foundation is identical, it is determined that completing contention resolved.
13. terminal according to claim 11, it is characterised in that in LTE system or WCDMA system, to access network node
Initiate before random access request, the Stochastic accessing processing module is additionally operable to：
Determine that the data volume of the upstream data to be sent is more than and extend the corresponding data-quantity threshold of leading code character, selection is described
Extend the lead code in leading code character；
To access network node initiate random access request when, the Stochastic accessing processing module specifically for：
By sending the lead code in the leading code character of extension to access network node initiation random access request.
14. the terminal according to any one of claim 11~13, it is characterised in that be not more than the uplink authorization information and refer to
Upstream data identification information is also carried in the packet for the stock number shown.
15. the terminal according to any one of claim 11~13, it is characterised in that generation is not more than the uplink authorization letter
Cease indicate stock number packet when, the data transmission module specifically for：
Multiple upstream data compositions to be sent are not more than to the packet for the stock number that the uplink authorization information is indicated, it is described
The identification information for the data link that each corresponding core net of upstream data to be sent is pre-established also is carried in packet.
16. a kind of access network node, it is characterised in that including：
Stochastic accessing processing module, the random access request sent for receiving terminal is that the terminal carries out uplink authorization, and
Uplink authorization information is sent to the terminal；
Data transmission module, the number for being not more than the stock number that the uplink authorization information is indicated for receiving the terminal generation
According to bag, upstream data to be sent and the identification information of the core-network side data link pre-established are carried in the packet,
Sent by the core-network side data link pre-established corresponding to the identification information to core net node in the packet
The upstream data of carrying.
17. access network node according to claim 16, it is characterised in that in LTE system, the data transmission module connects
After the packet for the stock number for receiving the no more than described uplink authorization information instruction of the terminal generation, at the Stochastic accessing
Reason module is additionally operable to：
Send in the packet for completing contention resolved, the packet for completing contention resolved and carry to the terminal
The identification information of the core-network side data link pre-established.
18. access network node according to claim 16, it is characterised in that in LTE system or WCDMA system, receives institute
State terminal transmission random access request when, the Stochastic accessing processing module specifically for：
Receive the lead code in the leading code character of extension as random access request that the terminal is sent；
The data transmission module specifically for：
According to the lead code in the leading code character of extension, determine to carry in the packet after upstream data to be sent, lead to
Cross the core-network side data link pre-established corresponding to the identification information and send the upstream data to core net node.
19. the access network node according to any one of claim 16~18, it is characterised in that the data that the terminal is sent
Upstream data identification information is also carried in bag, it is described when sending the upstream data carried in the packet to core net node
Data transmission module specifically for：
The upstream data identification information carried in the packet sent according to the terminal, determines the packet that the terminal is sent
It is middle to carry after upstream data to be sent, by the core-network side data link pre-established corresponding to the identification information to core
Heart net node sends the upstream data.
20. the access network node according to any one of claim 16~18, it is characterised in that the data that the terminal is sent
The packet core net corresponding with each upstream data to be sent that multiple upstream data compositions to be sent are carried in bag is pre-
The identification information for the data link first set up, it is described when sending the upstream data carried in the packet to core net node
Data processing module specifically for：
Each corresponding core-network side data link pre-established of upstream data to be sent is determined according to identification information；
Respectively by the corresponding core-network side data link pre-established of each upstream data to be sent to core net node
Send the upstream data.
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| WO2020029310A1 (en) * | 2018-08-09 | 2020-02-13 | Oppo广东移动通信有限公司 | Data transmission method and device, and terminal |
| CN105636207A (en) * | 2014-10-28 | 2016-06-01 | 电信科学技术研究院 | Method and equipment for transmitting uplink data |
| CN105991236B (en) * | 2015-03-05 | 2020-02-21 | 电信科学技术研究院 | Uplink transmission method and device |
| US10548000B2 (en) * | 2015-06-11 | 2020-01-28 | Intel IP Corporation | Cellular IoT network architecture |
| CN110213799B (en) * | 2016-03-29 | 2023-04-28 | 大唐移动通信设备有限公司 | Method and device for transmitting downlink small data |
| CN107959978B (en) * | 2016-10-17 | 2022-08-19 | 中兴通讯股份有限公司 | Method and device for keeping instance resources alive in base station network element |
| CN108377580A (en) | 2016-11-04 | 2018-08-07 | 维沃移动通信有限公司 | A kind of data transmission method, terminal and network side equipment |
| CN108282903B (en) | 2017-01-06 | 2020-03-24 | 电信科学技术研究院 | Information transmission method, UE and access network entity |
| CN109219133B (en) * | 2017-06-30 | 2023-08-15 | 中国移动通信有限公司研究院 | Access processing method, user equipment and network equipment |
| WO2019061098A1 (en) * | 2017-09-27 | 2019-04-04 | Nokia Solutions And Networks Oy | Network-initiated uplink small data transmission for nb iot |
| CN111294931B (en) * | 2018-12-10 | 2022-09-16 | 华为技术有限公司 | Communication method, device and computer readable storage medium |
| WO2021062797A1 (en) * | 2019-09-30 | 2021-04-08 | 华为技术有限公司 | Configuration method and apparatus |
| CN112383578A (en) * | 2019-10-21 | 2021-02-19 | 北京城建智控科技有限公司 | Data transmission method, device and equipment |
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