CN108616880A - A kind of method, apparatus and system of data transmission - Google Patents
A kind of method, apparatus and system of data transmission Download PDFInfo
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- CN108616880A CN108616880A CN201710036362.XA CN201710036362A CN108616880A CN 108616880 A CN108616880 A CN 108616880A CN 201710036362 A CN201710036362 A CN 201710036362A CN 108616880 A CN108616880 A CN 108616880A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/04—Key management, e.g. using generic bootstrapping architecture [GBA]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
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Abstract
The invention discloses a kind of method, apparatus of data transmission and systems；The method of above-mentioned data transmission, including：UE handles transmission data under default state, using the configuration mode of default state, wherein default state refers to the state that the interface between UE and base station disconnects and the interface holding between base station and core net connects.The present invention proposes processing modes of the UE in default state to transmission data, and then realizes the mobility that UE is conveniently adapted to when default state uses unauthorized transmission mode in default state.
Description
Technical field
The present invention relates to wireless communication technology field, the method, apparatus and system of espespecially a kind of data transmission.
Background technology
Long evolving system (LTE, Long Term Evolution) includes mainly following three parts：User equipment
(UE, User Equipment), core net (CN, Core Network) and base station (eNB, Evolved Node B).Wherein, core
Mobile management entity (MME, Mobility Management Entity) in heart net is mainly responsible for the transmission of signaling, service network
It closes (SGW, Serving GateWay) and is mainly responsible for the transmission of data.Interface between UE and eNB is Uu mouthfuls, is passed through between eNB
X2 mouthfuls of interconnections, the interface between eNB and core net are S1 mouthfuls, as shown in Figure 1.Wherein, E-UTRAN (Evolved UMTS
Terrestrial Radio Access Network, the UMTS Terrestrial radio access network of evolution) include multiple eNB.
The agreement framework of UE, eNB and MME are as shown in Figure 2.For UE, protocol layer RRC (Radio Resource
Control, wireless heterogeneous networks), PDCP (Packet Data Convergence Protocol, packet data convergence association
View), RLC (Radio Link Control, wireless spread-spectrum technology), MAC (Medium Access Control, media interviews control
System) and PHY (Physical Layer, physical layer) belong to AS (Access Stratum, access layer), and the high level of AS is NAS
(Non Access Stratum, Non-Access Stratum).
It is provided according to current agreement, UE will be communicated with eNB, first have to access the eNB, that is, initiate random access mistake
Journey.As shown in figure 3, random access (Random Access) process includes following four step：
Step 301：UE knows the available targeting sequencing for random access by system information or RRC signaling
(Preamble) and then the time-frequency location of transmission targeting sequencing in available resource, randomly chooses targeting sequencing and hair
The time-frequency location of targeting sequencing is sent, sends targeting sequencing to eNB；
Step 302：The time-frequency location that eNB is used by random access leader sequence infers the RA-RNTI that UE may be used
(Random Access Radio Network Temporary Identity, random access radio network temporary identifier), and
Targeting sequencing is decoded with RA-RNTI, after targeting sequencing is successfully decoded out in eNB, random access response is replied to UE, wherein with
The information such as uplink authorization are carried in machine access response；
Step 303：UE sends upstream data in the resource of uplink authorization, and the information such as mark for carrying UE；
Step 304：ENB parses upstream data in the resource of uplink authorization, confirms UE, solves conflict, and send competition
Resolution mark is to UE.
However, the delay of the above process is longer, and non-orthogonal techniques have been obtained for the approval of each company at present, because
This, random access procedure has also obtained technical update, can be reduced to two step process.UE can in the case of unauthorized,
Send the data to eNB.As shown in figure 4, the process that unauthorized uplink is sent includes following two steps：
Step 401：UE selects resource in unauthorized resource, sends upstream data；
Step 402：After eNB parses upstream data, response or data are replied.
Wherein, this programme may include two ways：One is UE also to be sent while sending upstream data it is leading
Sequence；Another kind is that UE only sends upstream data.
As it can be seen that compared to random access procedure shown in Fig. 3, it is shown in Fig. 4 it is unauthorized send upstream data process when
Prolong smaller, more flexible.Wherein, when UE is in inactive state, the Uu mouths connection of UE and base station is already off, but still keeps UE
The connection of S1 mouths, then the method that UE can utilize this unauthorized transmission upstream data reduces with reducing the time delay of data packet
The load of signaling.
However, due to UE inactive state using under unauthorized sending method transmission data with it is traditional under connected state
Transmission data it is different, and UE is mobile in inactive state, can use non-award in other cells with gravity treatment to other cells
Transmission data under power mode, therefore, the process of UE processing transmission datas will adapt to the mobility of UE.In addition, UE is sent very much
Data packet can make the COUNT values that the PDCP layers of business use reach maximum value, cause the update of key.
Invention content
It is the general introduction of the theme to being described in detail herein below.This general introduction is not to limit the protection model of claim
It encloses.
The embodiment of the present invention provides a kind of method, apparatus and system of data transmission, provides UE in default state to sending
The processing mode of data.
The embodiment of the present invention provides a kind of method of data transmission, including：UE is under default state, using the configuration of default state
Mode handles transmission data；Wherein, the default state refer to the interface between UE and base station disconnect and the base station and core net it
Between interface keep connection state.
Wherein, the UE handles transmission data using the configuration mode of default state, may include under default state：UE exists
Under default state, the configuration mode of the radio bearer under connected state of the user plane according to preservation handles the transmission data.
Wherein, the UE is under default state, the configuration mode of the radio bearer under connected state of the user plane according to preservation
The transmission data is handled, may include：
The UE pairs of radio bearer that can support transmission, carries out at least one of operation：
Reset MAC layer；Keep PDCP layer states；Keep rlc layer state；Hang up the radio bearer；In MAC layer and PHY
Using default configuration parameter.
Wherein, the holding PDCP layer states may include：Keep PDCP SN, COUNT values, next-hop link count
(NCC), robustness head compression (ROHC) state and PDCP configuration informations；
The holding RLC states may include：Keep RLC SN, RLC patterns and RLC configuration informations.
Wherein, the UE handles transmission data using the configuration mode of default state, may include under default state：UE exists
Under default state, the transmission data is handled according to the configuration mode of scheduled radio bearer in user plane.
Wherein, the UE handles the hair in user plane under default state according to the configuration mode of scheduled radio bearer
Data are sent, may include：
The UE pairs of radio bearer that can support transmission, carries out at least one of operation：
Reset MAC layer；Rebuild rlc layer；Rebuild PDCP layers；Hang up the radio bearer；More new key；It is applied at PDCP layers
The configuration parameter of non-acknowledgement (UM) pattern；In the configuration parameter of rlc layer application UM patterns；In MAC layer and PHY application default configurations
Parameter.
Wherein, the UE handles transmission data using the configuration mode of default state, may include under default state：UE exists
Under default state, the transmission data is handled according to the configuration mode of the radio bearer of target BS in user plane；Wherein, the mesh
Mark base station is the base station that the possible cell reselections of UE arrive.
Wherein, the UE handles institute in user plane under default state according to the configuration mode of the radio bearer of target BS
Transmission data is stated, may include：
The UE pairs of radio bearer that can support transmission, carries out at least one of operation：
Reset MAC layer；Rebuild rlc layer；Rebuild PDCP layers；Hang up the radio bearer；More new key；It is applied at PDCP layers
The configuration parameter of target BS；Configuration parameter in rlc layer application target base station；Join in MAC layer and PHY application default configurations
Number.
Wherein, the radio bearer may include at least one of：DRB、SRB.
Wherein, the method for data transmission can also include：
When UE is under the default state, and the COUNT values that the PDCP layers of any DRB or SRB use reach the Shens triggering UE
Please key updating COUNT values when, the UE initiates key updating process.
Wherein, the COUNT values of the triggering UE application key updatings are preset, alternatively, being believed by system by base station
Breath broadcast, alternatively, being configured by RRC signaling by base station.
Wherein, the UE initiates key updating process, may include：
UE sends RRC signaling, wherein the RRC signaling carries key updating request.
Wherein, the RRC signaling may include following one：RRC connection re-establishment request messages
(RRCConnectionReestablishmentRequest), RRC connections recovery request message
(RRCConnectionResumeRequest), customized new information.
Wherein, the method for data transmission can also include：
UE receives the paging message for carrying key updating instruction information；
After UE receives the paging message, at least one of operation is carried out：
Reset MAC layer；Rebuild rlc layer；More new key；The COUNT values that PDCP layers use are set as 1；According to default state
The configuration mode of lower preservation configures PDCP layers and rlc layer；In MAC layer and PHY application default configuration parameters；
After executing aforesaid operations, the UE is maintained under default state.
Wherein, the method for data transmission can also include：
UE receives the RRC connection reconfiguration message for carrying key updating instruction information；
After the UE receives the RRC connection reconfigurations message, at least one of operation is carried out：
Reset MAC layer；Rebuild rlc layer；More new key；The COUNT values that PDCP layers use are set as 1；According to default state
The configuration mode of lower preservation configures PDCP layers and rlc layer；In MAC layer and PHY application default configuration parameters；
After executing aforesaid operations, the UE is complete to base station transmission RRC connection reconfigurations using unauthorized transmission mode
At message, and it is maintained under default state.
Wherein, the method for data transmission can also include：
After UE receives RRC connection reconfiguration message, at least one of operation is executed：
Reset MAC layer；Rebuild rlc layer；Rebuild PDCP layers；More according to the configuration information carried in RRC connection reconfiguration message
The configuration mode of new default state；
After executing aforesaid operations, UE sends RRC connections using unauthorized transmission mode to the base station of Target cell
It re-matches and completes message, Target cell is switched to, into connected state.
Wherein, after the configuration mode processing transmission data using default state, the method for data transmission can also wrap
It includes：UE uses unauthorized transmission mode, emits the transmission data.
The embodiment of the present invention also provides a kind of method of data transmission, including：
Base station indicates to preset the configuration mode of state to UE, so that the UE is sent out in default state using configuration mode processing
Send data, wherein the default state refers to the disconnection of the interface between UE and base station and the interface between the base station and core net is protected
Hold the state of connection.
Wherein, the method for the data transmission can also include：The base station instruction UE, which enters, presets state.
Wherein, the method for the data transmission can also include：
The base station is broadcasted by system information or RRC signaling sends the COUNT values that triggering UE applies for key updating, with
Make the UE under default state, reaching the triggering UE in the COUNT values that the PDCP layers of any DRB or SRB use applies for key
When newer COUNT values, key updating process is initiated.
Wherein, the method for the data transmission can also include：
The base station judges any DRB or SRB of the UE after receiving the key updating request that the UE is sent
The COUNT values that use of PDCP layers whether reach the COUNT values of the triggering UE application key updatings, if so, to the UE
Send back complex response message, wherein the reply response message carries key updating and indicates information.
Wherein, the method for the data transmission can also include：
The COUNT values that the PDCP layers of any DRB or SRB of the base station monitors UE use；
Reach triggering UE in the COUNT values that the PDCP layers of any DRB or SRB that monitor the UE under default state use
When applying for the COUNT values of key updating, the base station notifies the UE more new keys by paging message, wherein the paging
Message carries key updating and indicates information；Alternatively, the base station is by UE more new keys described in RRC connection reconfiguration message informings,
Wherein, the RRC connection reconfigurations message carries key updating and indicates information.
The embodiment of the present invention also provides a kind of device of data transmission, is applied to UE, including：
First processing module, for when UE is in default state, transmission data to be handled using the configuration mode of default state；Its
In, the default state refers to the shape that the interface between UE and base station disconnects and the interface holding between the base station and core net connects
State.
Wherein, the first processing module, at by least one of mode using the configuration mode for presetting state
Manage transmission data：
The configuration mode of radio bearer under connected state of the user plane according to preservation handles the transmission data；
In user plane the transmission data is handled according to the configuration mode of scheduled radio bearer；
In user plane the transmission data is handled according to the configuration mode of the radio bearer of target BS.
Wherein, the device of the data transmission can also include：
Second processing module, for being under the default state as UE, and the PDCP layers of any DRB or SRB use
When COUNT values reach the COUNT values of triggering UE application key updatings, key updating process is initiated.
Wherein, the device of the data transmission can also include：
Receiving module carries key updating for receiving the paging message for carrying key updating instruction information alternatively, receiving
Indicate the RRC connection reconfiguration message of information；
Third processing module, for after the receiving module receives the paging message, carrying out at least one of
Operation：Reset MAC layer；Rebuild rlc layer；More new key；The COUNT values that PDCP layers use are set as 1；According to being protected under default state
The configuration mode deposited configures PDCP layers and rlc layer；In MAC layer and PHY application default configuration parameters；And executing above-mentioned behaviour
After work, it is maintained under default state；
Alternatively, for after the receiving module receives the RRC connection reconfigurations message, at least one of behaviour is carried out
Make：Reset MAC layer；Rebuild rlc layer；More new key；The COUNT values that PDCP layers use are set as 1；According to being preserved under default state
Configuration mode, configure PDCP layers and rlc layer；In MAC layer and PHY application default configuration parameters；And executing aforesaid operations
Later, RRC connection reconfigurations are sent to base station using unauthorized transmission mode and completes message, and be maintained under default state.
Wherein, the device of the data transmission can also include：Transmitting module, for using unauthorized transmission mode,
Emit the transmission data.
The embodiment of the present invention also provides a kind of device of data transmission, is applied to base station, including：
First indicating module, the configuration mode for indicating default state to user equipment (UE), so that the UE is in default state
Transmission data is handled using the configuration mode, wherein the default state refers to the disconnection of the interface between UE and base station and the base
The interface stood between core net keeps the state of connection.
Wherein, the device of the data transmission can also include：
Second indicating module is used to indicate UE and enters default state.
Wherein, the device of the data transmission can also include：
First transmission module applies for key updating for sending triggering UE by system information broadcast or RRC signaling
COUNT values, so that the UE under default state, reaches the triggering in the COUNT values that the PDCP layers of any DRB or SRB use
When UE applies for the COUNT values of key updating, key updating process is initiated.
Wherein, the device of the data transmission can also include：
Request receiving module, the key updating request sent for receiving the UE；
Judgment module, for after the key updating request that the request receiving module receives that the UE is sent, sentencing
Whether the COUNT values that the PDCP layers of any DRB or SRB of the disconnected UE use reach the COUNT of triggering UE application key updatings
Value；
Second transmission module is that when being, complex response message is sent back to the UE for the result in the judgment module,
Wherein, the reply response message carries key updating and indicates information.
Wherein, the device of the data transmission can also include：
Monitoring modular, the COUNT values that the PDCP layers of any DRB or SRB for monitoring UE use；
Notification module, for the PDCP in the monitoring module monitors to any DRB or SRB of the UE under default state
When the COUNT values that layer uses reach the COUNT values of triggering UE application key updatings, the more Xinmi City the UE is notified by paging message
Key, wherein the paging message carries key updating and indicates information；Alternatively, more by UE described in RRC connection reconfiguration message informings
New key, wherein the RRC connection reconfigurations message carries key updating and indicates information.
The embodiment of the present invention also provides a kind of system of data transmission, including：UE and base station；
The base station is used to indicate to preset to UE the configuration mode of state；
The UE is used to handle transmission data using the configuration mode in default state；
Wherein, the default state refers to the disconnection of the interface between UE and base station and the interface between the base station and core net is protected
Hold the state of connection.
In addition, the embodiment of the present invention also provides a kind of computer readable storage medium, computer executable instructions are stored with,
The method that the data transmission applied to the sides UE is realized when the computer executable instructions are executed by processor.
The embodiment of the present invention also provides a kind of computer readable storage medium, is stored with computer executable instructions, described
The method that the data transmission applied to base station side is realized when computer executable instructions are executed by processor.
In the present embodiment, UE handles transmission data, wherein default under default state using the configuration mode of default state
State refers to the state that the interface between UE and base station disconnects and the interface holding between base station and core net connects.The present embodiment proposes
UE, to the processing mode of transmission data, and then is realized when default state is using unauthorized transmission mode in default state, is convenient for
UE is adapted in the mobility for presetting state.
In some realization methods, preset under state when UE is in, and the COUNT values that the PDCP layers of any DRB or SRB use reach
When applying for the COUNT values of key updating to triggering UE, key updating process is carried out, to realize the key that timely updates.
Other features and advantage will illustrate in the following description, also, partly become from specification
It obtains it is clear that being understood by implementing the application.The purpose of the application and other advantages can be by specification, rights
Specifically noted structure is realized and is obtained in claim and attached drawing.
Description of the drawings
Attached drawing is used for providing further understanding technical scheme, and a part for constitution instruction, with this
The embodiment of application is used to explain the technical solution of the application together, does not constitute the limitation to technical scheme.
Fig. 1 is the Organization Chart of LTE；
Fig. 2 is the diagram of protocol architecture of UE, eNB and MME；
Fig. 3 is the random access procedure figure in LTE；
Fig. 4 is the flow chart that unauthorized uplink is sent；
Fig. 5 is a kind of flow chart of the method for data transmission provided in an embodiment of the present invention；
Fig. 6 is the flow chart of the method for another data transmission provided in an embodiment of the present invention；
Fig. 7 is a kind of schematic diagram of the device of data transmission provided in an embodiment of the present invention；
Fig. 8 is the schematic diagram one of the device of another data transmission provided in an embodiment of the present invention；
Fig. 9 is the schematic diagram two of the device of another data transmission provided in an embodiment of the present invention.
Specific implementation mode
The embodiment of the present application is described in detail below in conjunction with attached drawing, it should be understood that embodiments described below is only
For instruction and explanation of the application, it is not used to limit the application.It should be noted that in the absence of conflict, the application
In embodiment and embodiment in feature mutually can arbitrarily combine.
Step shown in the flowchart of the accompanying drawings can be in the computer system of such as a group of computer-executable instructions
It executes.Also, although logical order is shown in flow charts, and it in some cases, can be with suitable different from herein
Sequence executes shown or described step.
The embodiment of the present invention provides a kind of method of data transmission, as shown in figure 5, including：
Step 501：UE handles transmission data under default state, using the configuration mode of default state；
Wherein, default state refers to the disconnection of the interface between UE and base station and the interface between base station and core net keeps connection
State.For example, in LTE, the interface between UE and base station is Uu mouthfuls, and the interface between base station and core net is S1 mouthfuls, i.e. UE
When in default state, the Uu mouths of UE disconnect and S1 mouthfuls keep connection.
In some realization methods, step 501 may include：
For UE under default state, the configuration mode processing of the radio bearer under connected state of the user plane according to preservation sends number
According to.
In this realization method, the UE pairs of radio bearer that can support transmission can carry out at least one of operation：
Reset MAC layer；Keep PDCP layer states；Keep rlc layer state；Hang up radio bearer；It is applied in MAC layer and PHY
Default configuration parameter.
In this realization method, PDCP layer states are kept, may include：Keep PDCP serial numbers (SN, Serial
Number), COUNT values, next-hop link count (NCC, nextHopChainingCount), robustness head compression (ROHC,
Robust Header Compression) state and PDCP configuration informations；
RLC states are kept, may include：Keep RLC SN, RLC patterns and RLC configuration informations.
In this realization method, radio bearer may include at least one of：Data Radio Bearer (DRB, Data
Radio Bearer), Signaling Radio Bearer (SRB, Signal Radio Bearer).
In some realization methods, step 501 may include：
UE handles transmission data under default state, in user plane according to the configuration mode of scheduled radio bearer.
In this realization method, the UE pairs of radio bearer that can support transmission can carry out at least one of operation：
Reset MAC layer；Rebuild rlc layer；Rebuild PDCP layers；Hang up radio bearer；More new key；At PDCP layers, application is non-really
Recognize the configuration parameter of (UM) pattern；In the configuration parameter of rlc layer application UM patterns；Join in MAC layer and PHY application default configurations
Number.
In this realization method, radio bearer may include at least one of：DRB、SRB.
In some realization methods, step 501 may include：
UE handles transmission data under default state, in user plane according to the configuration mode of the radio bearer of target BS；Its
In, target BS is the base station that the possible cell reselections of UE arrive.
In this realization method, the UE pairs of radio bearer that can support transmission carries out at least one of operation：
Reset MAC layer；Rebuild rlc layer；Rebuild PDCP layers；Hang up radio bearer；More new key；In PDCP layers of application target
The configuration parameter of base station；Configuration parameter in rlc layer application target base station；In MAC layer and PHY application default configuration parameters.
In this realization method, radio bearer may include at least one of：DRB、SRB.
In some realization methods, the method for data transmission provided in this embodiment can also include：
When UE is under default state, and the COUNT values that use of the PDCP layers of any DRB or SRB reach triggering UE apply it is close
When the newer COUNT values of key, UE initiates key updating process.
In this realization method, triggering UE application key updating COUNT values can be it is preset, alternatively, can be by
Base station is broadcasted by system information, alternatively, being configured by RRC signaling by base station.
In this realization method, UE initiates key updating process, may include：
UE sends wireless heterogeneous networks (RRC, Radio Resource Control) signaling, wherein RRC signaling carries close
Key update request.
Wherein, RRC signaling may include following one：RRC connection re-establishment request messages
(RRCConnectionReestablishmentRequest), RRC connections recovery request message
(RRCConnectionResumeRequest), customized new information.
In some realization methods, the method for data transmission provided in this embodiment can also include：
UE receives the paging message for carrying key updating instruction information；
After UE receives the paging message for carrying key updating instruction information, at least one of operation is carried out：
Reset MAC layer；Rebuild rlc layer；More new key；The COUNT values that PDCP layers use are set as 1；According to default state
The configuration mode of lower preservation configures PDCP layers and rlc layer；In MAC layer and PHY application default configuration parameters；
After executing aforesaid operations, UE is maintained under default state.
In some realization methods, the method for data transmission provided in this embodiment can also include：
UE receives the RRC connection reconfiguration message for carrying key updating instruction information；
After UE receives the RRC connection reconfiguration message for carrying key updating instruction information, at least one of operation is carried out：
Reset MAC layer；Rebuild rlc layer；More new key；The COUNT values that PDCH layers use are set as 1；According to default state
The configuration mode of lower preservation configures PDCP layers and rlc layer；In MAC layer and PHY application default configuration parameters；
After executing aforesaid operations, UE sends the completion of RRC connection reconfigurations to base station using unauthorized transmission mode and disappears
Breath, and be maintained under default state.
In some realization methods, the method for data transmission provided in this embodiment can also include：
After UE receives RRC connection reconfiguration message, at least one of operation is executed：
Reset MAC layer；Rebuild rlc layer；Rebuild PDCP layers；More according to the configuration information carried in RRC connection reconfiguration message
The configuration mode of new default state；
After executing aforesaid operations, UE sends RRC connections using unauthorized transmission mode to the base station of Target cell
It re-matches and completes message, Target cell is switched to, into connected state.
In some realization methods, after step 501, the method for data transmission provided in this embodiment can also include：
Step 502：UE uses unauthorized transmission mode, transmitting treated transmission data.
The application is illustrated below by multiple embodiments.It should be noted that in the following embodiments,
Assuming that UE is in default state, under default state, the Uu mouths of UE disconnect and S1 mouthfuls keep connection.
Embodiment one
In the present embodiment, when UE carries out unauthorized transmission under default state, user plane can be according to original to data packet
There are the configuration mode of DRB and SRB under connected state to be handled.
When base station, instruction UE enters default state, ability, the type of business that base station can be according to UE configure which industry of UE
Business can support unauthorized transmission.For example, for some UE, base station indicates that UE enters by RRC information and presets state, and RRC
Message, which carries, can support DRB the and SRB inventories (list) of unauthorized transmission, wherein RRC information may include it is following it
One：RRC connection release message (RRCConnectionRelease), RRC connection reconfiguration message
(RRCConnectionReconfiguration), RRC connection re-establishments message
(RRCConnectionReestablishment) and customized new information.
When UE is in default state, UE can preserve the configuration mode of context and DRB and SRB under original connected state.
When the certain DRB and SRB of base station configuration UE support unauthorized transmission, UE carries out resetting MAC layer to these DRB and SRB, protects
Hold the operation of rlc layer and PDCP layer states.For example, for some UE, it, can be according to guarantor after UE receives the RRC information from base station
Configuration mode under the connected state deposited pair can support the DRB and SRB of unauthorized transmission, proceed as follows：Reset MAC layer；
Keep PDCP layer states；Keep rlc layer state；Hang up DRB and SRB；In MAC layer and PHY application default configuration parameters etc..Its
In, holding PDCP layer states may include：Keep PDCP serial numbers (SN, Serial Number), COUNT values, NCC (next Hop
Chaining Count, next-hop link count), ROHC (Robust Header Compression, robustness head compression) shape
State, PDCP configuration informations etc.；Keep rlc layer state may include：Keep RLC SN, RLC patterns, RLC configuration informations etc..
Embodiment two
In the present embodiment, when UE carries out unauthorized transmission under default state, user plane can be according to pre- to data packet
The configuration mode of fixed DRB and SRB is handled.
When base station configuration UE, which enters, presets state, ability, the type of business that base station can be according to UE configure which industry of UE
Business can support unauthorized transmission, and configure under unauthorized state to the processing mode of data packet.In unauthorized biography
During defeated, in order to reduce complexity, specific processing mode may be used, such as UM patterns.For example, for some UE, base station
UE is configured by RRC information and enters default state, and RRC information carries DRB the and SRB list that can support unauthorized transmission,
And the configuration mode of these DRB and SRB, wherein may include the RLC configurations of the PDCP configuration modes, UM patterns of UM patterns
Mode, while can also carry key updating information NCC (nextHopChainingCount)；Wherein, RRC information may include with
It is one of lower：RRC connection release message (RRCConnectionRelease), RRC connection reconfiguration message
(RRCConnectionReconfiguration), RRC connection re-establishments message
(RRCConnectionReestablishment) and customized new information.
When UE is in default state, and when the certain DRB and SRB of base station configuration UE support unauthorized transmission, UE can be right
These DRB and SRB carry out resetting MAC layer, rebuild rlc layer, rebuild PDCP layers and the operation of the new configuration parameter of application.For example, right
The RRC connection reconfiguration message from base station is received in some UE, UE, pair can be supported non-according to the configuration mode wherein carried
The DRB and SRB of the transmission of mandate, proceed as follows：Reset MAC layer；Rebuild rlc layer；Rebuild PDCP layers；Hang up DRB and
SRB；More new key；The configuration parameter of UM patterns is applied at PDCP layers；In the configuration parameter of rlc layer application UM patterns；In MAC layer
With PHY application default configuration parameters etc..
Embodiment three
In the present embodiment, when UE carries out unauthorized transmission under default state, user plane can be according to mesh to data packet
The configuration mode of mark base station is handled.
Former base station the target BS that UE may be moved to is judged, and obtain UE in target by the measurement report of UE
The configuration mode of base station.Former base station is reconfigured by RRC signaling to UE.
Target BS can according to the characteristic of UE and itself the case where, unauthorized biography can be supported by configuring which business of UE
It is defeated, and configure under unauthorized state to the processing mode of data packet.For example, for some UE, former base station passes through RRC information
It configures UE and enters default state, and RRC information carries under the target BS list that can support default state, and each target BS
Configuration parameter, may include：It can support DRB the and SRB list of unauthorized transmission and matching for these DRB and SRB
Mode is set, while can also carry key updating information NCC (nextHopChainingCount).Wherein, RRC information may include
Following one：RRC connection release message (RRCConnectionRelease), RRC connection reconfiguration message
(RRCConnectionReconfiguration), RRC connection re-establishments message
(RRCConnectionReestablishment) and customized new information.
When UE is in default state, and former base station configuration UE supports unauthorized biography in the certain DRB and SRB of target BS
When defeated, UE can carry out these DRB and SRB resetting MAC layer, rebuild rlc layer, rebuild PDCP layers and the configuration of application target base station
The operation of parameter.Such as：The UE of default state is in for some, if UE has data transmission, and UE has selected some target base
It stands, UE pair can support the DRB and SRB of unauthorized transmission, proceed as follows according to the configuration mode of target BS：Weight
Set MAC layer；Rebuild rlc layer；Rebuild PDCP layers；Hang up DRB and SRB；More new key；Configuration PDCP layers of application target base station
Parameter；Configuration parameter in rlc layer application target base station；In MAC layer and PHY application default configuration parameters etc..
Example IV
In the present embodiment, when UE is under default state, the COUNT values that the PDCP layers of some DRB or SRB use may
Maximum value can be reached, need to overturn, and the overturning of COUNT values can lead to the update of key.At this point, UE can apply more to base station
New key.
Base station can be broadcasted by system information or the COUNT values of RRC signaling configuration triggering UE application key updatings,
The COUNT values that the PDCP layers of some DRB or SRB of UE use reach triggering UE application key updating COUNT values when, UE be to
Apply for more new key in base station.Alternatively, determining that triggering UE applies for the COUNT values of key updating by predefined mode, UE's
When the COUNT values that the PDCP layers of some business use reach the COUNT values of triggering UE application key updatings, UE applies to base station
More new key.
UE applies for more new key to base station.Wherein, UE sends RRC signaling to base station, and RRC signaling can carry key updating
Request.Wherein, RRC signaling may include following one：RRC connection re-establishment request messages
(RRCConnectionReestablishmentRequest), RRC connections recovery request message
(RRCConnectionResumeRequest), customized new information.
After base station receives the key updating request of UE transmissions, judge what the PDCP layers of some DRB or SRB of UE used
Whether COUNT values will overturn, if it is, initiating to reply response message to UE, and be indicated newly in replying response message
NCC。
Embodiment five
In the present embodiment, it is synchronous with the COUNT values of UE in view of base station, base station can also initiate key updating.
When the COUNT values that the PDCP layers of some DRB or SRB of base station monitors to UE use will be overturn, and UE is in pre-
If under state, base station can promote UE more new keys by paging message.Base station will need the mark of the UE of more new key to be added to
In paging message, moreover, paging message can also add key updating instruction information, such as NCC.
UE under default state if receiving the paging message for belonging to the UE, and carries key more in paging message
New to indicate information, then the rrc layer of UE indicates PDCP layers of more new key.For example, UE can execute following operation：Reset MAC layer, again
It builds rlc layer, more new key, the COUNT values that PDCP layers use is set as 1；According to the configuration mode preserved under default state, configuration
PDCP layers and rlc layer；In MAC layer and PHY application default configuration parameters；Moreover, UE continues to keep after executing aforesaid operations
Under default state.
Embodiment six
In the present embodiment, unauthorized transmission is carried out when UE is under default state, the PDCP layers of some DRB or SRB
The COUNT values used may reach maximum value, need to overturn, base station can by RRC signaling more new key, and indicate UE after
It is continuous to stay under default state.
For some UE, access has selected a cell, and carry out unauthorized transmission, when some under default state
The COUNT values that the PDCP layers of DRB or SRB use are up to maximum value, then base station can determine more new key, are sent to UE
RRC signaling (such as RRC connection reconfigurations message) notifies UE more new keys.
After UE receives RRC connection reconfiguration message, following operation can be executed：Reset MAC layer；Rebuild rlc layer；More Xinmi City
Key；The COUNT values that PDCP layers use are set as 1；According to the configuration mode preserved under default state, PDCP layers and rlc layer are configured；
In MAC layer and PHY application default configuration parameters；Then, UE may be used unauthorized transmission mode and send RRC connections to base station
It re-matches and completes message, and be continually maintained under default state.
Embodiment seven
In the present embodiment, when UE is under default state, UE carries out cell reselection, has selected new cell, and carry out non-
The transmission of mandate.Target cell receives the upstream data packet of UE, can find UE's according to information such as the UE marks wherein carried
Former cell, and by X2 mouthfuls, the upstream data packet of UE is passed into former cell.
If former cell is judged, the COUNT values that the PDCP layers of some DRB or SRB of UE use may reach maximum
Value, needs to overturn, former cell can initiate the handoff procedure of X2.First, former cell sends switching request to Target cell；If
Target cell agrees to switching, and switch acknowledgment message is returned to former cell；Former cell is that UE generation instructions are switched to Target cell
RRC connection reconfiguration message, and by X2 mouthfuls, pass to Target cell；Under being sent by unauthorized uplink by Target cell
RRC connection reconfiguration message is sent to UE by row feedback.
After UE receives RRC connection reconfiguration message, the process for being switched to Target cell is executed, following operate can be carried out：
Reset MAC layer；Rebuild rlc layer；Rebuild PDCP layers；State is preset according to the configuration information update carried in RRC connection reconfiguration message
Configuration mode；Then, UE may be used unauthorized transmission mode and send the completion of RRC connection reconfigurations to the base station of Target cell
Message, and enter connected state.
In summary, the present embodiment proposes UE when default state uses unauthorized transmission mode, to transmission data
Processing mode, to not only conveniently adapt to UE in the mobility of activated state, but also the key that can timely update.
In addition, the embodiment of the present invention also provides a kind of method of data transmission, as shown in fig. 6, including：
Step 601：Base station indicates to preset the configuration mode of state to UE, so that UE is sent out in default state using configuration mode processing
Send data；
Wherein, default state refers to the disconnection of the interface between UE and base station and the interface between base station and core net keeps connection
State.For example, in LTE, the interface between UE and base station is Uu mouthfuls, and the interface between base station and core net is S1 mouthfuls, i.e. UE
When in default state, the Uu mouths of UE disconnect and S1 mouthfuls keep connection.
Wherein, the method for data transmission provided in this embodiment can also include：
Step 600：Base station indicates that UE enters and presets state.
In some realization methods, the method for data transmission provided in this embodiment can also include：
Base station is broadcasted by system information or RRC signaling sends the COUNT values that triggering UE applies for key updating, so that place
UE under default state reaches triggering UE in the COUNT values that the PDCP layers of any DRB or SRB use and applies for key updating
When COUNT values, key updating process is initiated.
In some realization methods, the method for data transmission provided in this embodiment can also include：
Base station judges that the PDCP layers of any DRB or SRB of UE use after receiving the key updating request of UE transmissions
COUNT values whether reach the COUNT values of triggering UE application key updatings, if so, send back complex response message to UE,
In, it replys response message and carries key updating instruction information.
In some realization methods, the method for data transmission provided in this embodiment can also include：
The COUNT values that the PDCP layers of any DRB or SRB of base station monitors UE use；
Reach triggering UE in the COUNT values that the PDCP layers of any DRB or SRB that monitor the UE under default state use
When applying for the COUNT values of key updating, base station notifies UE more new keys by paging message, wherein paging message carries key
Update instruction information；Alternatively, base station passes through RRC connection reconfiguration message informing UE more new keys, wherein RRC connection reconfiguration message
It carries key updating and indicates information.
In addition, the detailed description of the method about data transmission provided in this embodiment be referred to above-described embodiment one to
Seven, therefore repeated no more in this.
In addition, the embodiment of the present invention also provides a kind of device of data transmission, as shown in fig. 7, it is applied to UE, including：
First processing module 701, for when UE is in default state, number to be sent using the configuration mode processing of default state
According to；
Wherein, default state refers to the disconnection of the interface between UE and base station and the interface between base station and core net keeps connection
State.
In some realization methods, first processing module 701 can be used for through at least one of mode using default state
Configuration mode handle transmission data：
The configuration mode of radio bearer under connected state of the user plane according to preservation handles transmission data；
In user plane transmission data is handled according to the configuration mode of scheduled radio bearer；
In user plane transmission data is handled according to the configuration mode of the radio bearer of target BS.
In some realization methods, the device of data transmission provided in this embodiment can also include：
Second processing module 702, for being under default state as UE, and the PDCP layers of any DRB or SRB use
When COUNT values reach the COUNT values of triggering UE application key updatings, key updating process is initiated.
Wherein, the COUNT values of triggering UE applications key updating can be preset, alternatively, being believed by system by base station
Breath broadcast, alternatively, being configured by RRC signaling by base station.
In some realization methods, the device of data transmission provided in this embodiment can also include：
Receiving module 703 carries key for receiving the paging message for carrying key updating instruction information alternatively, receiving
The RRC connection reconfiguration message of update instruction information；
Third processing module 704, for receiving the paging message for carrying key updating and indicating information in receiving module 703
Afterwards, at least one of operation is carried out：Reset MAC layer；Rebuild rlc layer；More new key；The COUNT values that PDCP layers use are set
It is set to 1；According to the configuration mode preserved under default state, PDCP layers and rlc layer are configured；Join in MAC layer and PHY application default configurations
Number；And it after executing aforesaid operations, is maintained under default state；
Alternatively, for after receiving module 703 receives and carries the RRC connection reconfiguration message that key updating indicates information,
Carry out at least one of operation：Reset MAC layer；Rebuild rlc layer；More new key；It sets the COUNT values that PDCP layers use to
1；According to the configuration mode preserved under default state, PDCP layers and rlc layer are configured；In MAC layer and PHY application default configuration parameters；
And after executing aforesaid operations, RRC connection reconfigurations are sent to base station using unauthorized transmission mode and complete message, and are protected
It holds under default state.
In some realization methods, the device of data transmission provided in this embodiment can also include：Transmitting module 705 is used
In using unauthorized transmission mode, transmitting first processing module 701 treated transmission data.
In addition, the method that the associated description of the device about data transmission provided in this embodiment is referred to the above-mentioned sides UE
Embodiment, therefore repeated no more in this.
In addition, the embodiment of the present invention also provides a kind of device of data transmission, as shown in Figure 8 or shown in Fig. 9, it is applied to base
It stands, including：
First indicating module 801, the configuration mode for indicating default state to UE, so that UE uses configuration side in default state
Formula handles transmission data；
Wherein, default state refers to the disconnection of the interface between UE and base station and the interface between base station and core net keeps connection
State.
In some realization methods, the device of data transmission provided in this embodiment can also include：
Second indicating module 802 is used to indicate UE and enters default state.
In some realization methods, as shown in figure 8, the device of data transmission provided in this embodiment can also include：
First transmission module 803 applies for key updating for sending triggering UE by system information broadcast or RRC signaling
COUNT values so that the UE under default state, reaches in the COUNT values that the PDCP layers of any DRB or SRB use and triggers UE
When applying for the COUNT values of key updating, key updating process is initiated.
In some realization methods, as shown in figure 8, the device of data transmission provided in this embodiment can also include：
Request receiving module 804, the key updating request for receiving UE transmissions；
Judgment module 805 judges after the key updating request for receiving UE transmissions in request receiving module 804
Whether the COUNT values that the PDCP layers of any DRB or SRB of UE use reach the COUNT values of triggering UE application key updatings；
Second transmission module 806 is that when being, complex response message is sent back to UE for the result in judgment module 805,
In, it replys response message and carries key updating instruction information.
In some realization methods, as shown in figure 9, the device of data transmission provided in this embodiment can also include：
Monitoring modular 807, the COUNT values that the PDCP layers of any DRB or SRB for monitoring UE use；
Notification module 808, any DRB's or SRB of the UE for monitoring to be under default state in monitoring modular 807
When the PDCP layers of COUNT values used reach the COUNT values of triggering UE application key updatings, the more Xinmi City UE is notified by paging message
Key, wherein paging message carries key updating and indicates information；Alternatively, by RRC connection reconfiguration message informing UE more new keys,
Wherein, RRC connection reconfigurations message carries key updating and indicates information.
In addition, the associated description of the device about data transmission provided in this embodiment is referred to the side of above-mentioned base station side
Method embodiment, therefore repeated no more in this.
In addition, the embodiment of the present invention also provides a kind of device of data transmission, including processor and it is stored with processor
The memory of executable instruction executes following operation when instruction is executed by processor：
When UE is in default state, transmission data is handled using the configuration mode of default state；Wherein, default state refers to UE and base station
Between interface disconnect and interface between base station and core net keeps the state of connection.
Wherein, when UE is in default state, transmission data is handled using the configuration mode of default state, may include it is following at least
One of：
When UE is in default state, described in the configuration mode processing of the radio bearer under connected state of the user plane according to preservation
Transmission data；
When UE is in default state, transmission data is handled according to the configuration mode of scheduled radio bearer in user plane；
When UE is in default state, transmission data is handled according to the configuration mode of the radio bearer of target BS in user plane.
Wherein, when instruction is executed by processor, following operation can also be performed：
When UE is under default state, and the COUNT values that use of the PDCP layers of any DRB or SRB reach triggering UE apply it is close
When the newer COUNT values of key, key updating process is initiated.
In addition, the method that the associated description of the device about data transmission provided in this embodiment is referred to the above-mentioned sides UE
Embodiment, therefore repeated no more in this.
In addition, the embodiment of the present invention also provides a kind of device of data transmission, including processor and it is stored with processor
The memory of executable instruction executes following operation when instruction is executed by processor：
The configuration mode of default state is indicated to UE, so that UE handles transmission data in default state using configuration mode, wherein
Default state refers to the state that the interface between UE and base station disconnects and the interface holding between base station and core net connects.
Wherein, when instruction is executed by processor, following operation can also be performed：
Monitor the COUNT values that the PDCP layers of any DRB or SRB of UE use；
Reach triggering UE in the COUNT values that the PDCP layers of any DRB or SRB that monitor the UE under default state use
When applying for the COUNT values of key updating, UE more new keys are notified by paging message, wherein paging message carries key updating
Indicate information；Alternatively, passing through RRC connection reconfiguration message informing UE more new keys, wherein RRC connection reconfiguration message carries key
Update instruction information.
In addition, the associated description of the device about data transmission provided in this embodiment is referred to the side of above-mentioned base station side
Method embodiment, therefore repeated no more in this.
In addition, the embodiment of the present invention also provides a kind of system of data transmission, may include：UE and base station；Wherein, UE
It is referred to the description of embodiment as shown in Figure 7, base station is referred to the description such as Fig. 8 or embodiment illustrated in fig. 9, therefore not in this
It repeats again.
In addition, the embodiment of the present invention also provides a kind of computer readable storage medium, computer executable instructions are stored with,
The method that the data transmission applied to the sides UE is realized when the computer executable instructions are executed by processor.
The embodiment of the present invention also provides a kind of computer readable storage medium, is stored with computer executable instructions, described
The method that the data transmission applied to base station side is realized when computer executable instructions are executed by processor.
One of ordinary skill in the art will appreciate that all or part of step in the above method can be instructed by program
Related hardware (such as processor) is completed, and described program can be stored in computer readable storage medium, as read-only memory,
Disk or CD etc..Optionally, all or part of step of above-described embodiment can also be come using one or more integrated circuits
It realizes.Correspondingly, the form realization of hardware may be used in each module/unit in above-described embodiment, such as passes through integrated circuit
It realizes its corresponding function, can also be realized in the form of software function module, such as be stored in and deposited by processor execution
Program/instruction in reservoir realizes its corresponding function.The application is not limited to the knot of the hardware and software of any particular form
It closes.
The advantages of basic principles and main features and the application of the application have been shown and described above.The application is not by upper
The limitation for stating embodiment, the above embodiments and description only describe the principles of the application, are not departing from the application
Under the premise of spirit and scope, the application will also have various changes and improvements, these changes and improvements both fall within claimed
Within the scope of the application.
Claims (33)
1. a kind of method of data transmission, which is characterized in that including：
User equipment (UE) handles transmission data under default state, using the configuration mode of default state；
Wherein, the default state refers to the disconnection of the interface between UE and base station and the interface between the base station and core net keeps connecting
The state connect.
2. according to the method described in claim 1, it is characterized in that, the UE under default state, using the configuration side of default state
Formula handles transmission data, including：
For UE under default state, the configuration mode of the radio bearer under connected state of the user plane according to preservation handles the transmission number
According to.
3. according to the method described in claim 2, it is characterized in that, the UE under default state, in user plane according to preservation
The configuration mode of radio bearer under connected state handles the transmission data, including：
The UE pairs of radio bearer that can support transmission, carries out at least one of operation：
Reset media access control MAC layer；Keep Packet Data Convergence Protocol PDCP layer states；Keep wireless spread-spectrum technology RLC
Layer state；Hang up the radio bearer；In MAC layer and physical layer PHY application default configuration parameters.
4. according to the method described in claim 3, it is characterized in that, the holding PDCP layer states, including：Keep PDCP serial numbers
SN, COUNT value, next-hop link count NCC, robustness head compression ROHC states and PDCP configuration informations；The holding RLC
State, including：RLCSN, RLC pattern of holding and RLC configuration informations.
5. according to the method described in claim 1, it is characterized in that, the UE under default state, using the configuration side of default state
Formula handles transmission data, including：
UE handles the transmission data under default state, in user plane according to the configuration mode of scheduled radio bearer.
6. according to the method described in claim 5, it is characterized in that, the UE under default state, in user plane according to scheduled
The configuration mode of radio bearer handles the transmission data, including：
The UE pairs of radio bearer that can support transmission, carries out at least one of operation：
Reset media access control MAC layer；Rebuild wireless spread-spectrum technology rlc layer；Rebuild PDCP layers of Packet Data Convergence Protocol；It hangs
Play the radio bearer；More new key；The configuration parameter of non-acknowledgement UM patterns is applied at PDCP layers；In rlc layer application UM patterns
Configuration parameter；In MAC layer and physical layer PHY application default configuration parameters.
7. according to the method described in claim 1, it is characterized in that, the UE under default state, using the configuration side of default state
Formula handles transmission data, including：
UE handles the transmission data under default state, in user plane according to the configuration mode of the radio bearer of target BS；Its
In, the target BS is the base station that the possible cell reselections of UE arrive.
8. the method according to the description of claim 7 is characterized in that the UE is under default state, in user plane according to target base
The configuration mode for the radio bearer stood handles the transmission data, including：
The UE pairs of radio bearer that can support transmission, carries out at least one of operation：
Reset media access control MAC layer；Rebuild wireless spread-spectrum technology rlc layer；Rebuild PDCP layers of Packet Data Convergence Protocol；It hangs
Play the radio bearer；More new key；Configuration parameter PDCP layers of application target base station；In rlc layer application target base station
Configure parameter；In MAC layer and physical layer PHY application default configuration parameters.
9. according to claim 2 to 8 any one of them method, which is characterized in that the radio bearer include it is following at least it
One：Data Radio Bearer DRB, Signaling Radio Bearer SRB.
10. according to the method described in claim 1, it is characterized in that, the method further includes：When UE is in the default state
Under, and PDCP layers of COUNT used of the Packet Data Convergence Protocol of any data radio bearer DRB or Signaling Radio Bearer SRB
When value reaches the COUNT values of triggering UE application key updatings, the UE initiates key updating process.
11. according to the method described in claim 10, it is characterized in that, the COUNT values of the triggering UE application key updatings are
It is preset, alternatively, being to be broadcasted by system information by base station, alternatively, being matched by radio resource control RRC signaling by base station
It sets.
12. according to the method described in claim 10, it is characterized in that, the UE initiate key updating process, including：UE is sent
Radio resource control RRC signaling, the RRC signaling carry key updating request.
13. according to the method for claim 12, which is characterized in that the RRC signaling includes following one：RRC connections weight
Establish request message RRCConnectionReestablishmentRequest, RRC connection recovery request message
RRCConnectionResumeRequest, customized new information.
14. according to the method described in claim 1, it is characterized in that, the method further includes：
UE receives the paging message for carrying key updating instruction information；
After the UE receives the paging message, at least one of operation is carried out：
Reset media access control MAC layer；Rebuild wireless spread-spectrum technology rlc layer；More new key；By Packet Data Convergence Protocol
The PDCP layers of COUNT values used are set as 1；According to the configuration mode preserved under default state, PDCP layers and rlc layer are configured；In MAC
Layer and physical layer PHY application default configuration parameters；
After executing aforesaid operations, the UE is maintained under default state.
15. according to the method described in claim 1, it is characterized in that, the method further includes：
UE receives the radio resource control RRC connection reconfiguration message for carrying key updating instruction information；
After the UE receives the RRC connection reconfigurations message, at least one of operation is carried out：
Reset media access control MAC layer；Rebuild wireless spread-spectrum technology rlc layer；More new key；By Packet Data Convergence Protocol
The PDCP layers of COUNT values used are set as 1；According to the configuration mode preserved under default state, PDCP layers and rlc layer are configured；In MAC
Layer and physical layer PHY application default configuration parameters；
After executing aforesaid operations, the UE sends the completion of RRC connection reconfigurations to base station using unauthorized transmission mode and disappears
Breath, and be maintained under default state.
16. according to the method described in claim 1, it is characterized in that, the method further includes：
After UE receives radio resource control RRC connection reconfiguration message, at least one of operation is executed：
Reset media access control MAC layer；Rebuild wireless spread-spectrum technology rlc layer；Rebuild PDCP layers of Packet Data Convergence Protocol；It presses
The configuration mode of state is preset according to the configuration information update carried in RRC connection reconfiguration message；
After executing aforesaid operations, UE sends RRC connection reconfigurations using unauthorized transmission mode to the base station of Target cell
Message is completed, Target cell is switched to, into connected state.
17. according to the method described in claim 1, it is characterized in that, described send number using the configuration mode processing for presetting state
According to later, the method further includes：The UE uses unauthorized transmission mode, emits the transmission data.
18. a kind of method of data transmission, which is characterized in that including：
Base station indicates to preset the configuration mode of state to user equipment (UE), so that the UE is used in default state at the configuration mode
Manage transmission data, wherein the default state refers to the disconnection of the interface between UE and base station and connecing between the base station and core net
Mouth keeps the state of connection.
19. according to the method for claim 18, which is characterized in that the method further includes：The base station instruction UE enters
Default state.
20. according to the method for claim 18, which is characterized in that the method further includes：
The base station is broadcasted by system information or radio resource control RRC signaling sends triggering UE and applies for key updating
COUNT values, so that the UE under default state, in the grouped data of any Data Radio Bearer DRB or Signaling Radio Bearer SRB
When the COUNT values that PDCP layers of convergence protocol uses reach the COUNT values of the triggering UE application key updatings, key updating is initiated
Process.
21. according to the method for claim 20, which is characterized in that the method further includes：The base station is receiving
After the key updating request for stating UE transmissions, judge whether is COUNT values that the PDCP layers of any DRB or SRB of the UE use
The COUNT values for reaching the triggering UE application key updatings, if so, sending back complex response message to the UE, wherein described
It replys response message and carries key updating instruction information.
22. according to the method for claim 18, which is characterized in that the method further includes：
The Packet Data Convergence Protocol of any data radio bearer DRB or Signaling Radio Bearer SRB of the base station monitors UE
The PDCP layers of COUNT values used；
Reach triggering UE applications in the COUNT values that the PDCP layers of any DRB or SRB that monitor the UE under default state use
When the COUNT values of key updating, the base station notifies the UE more new keys by paging message, wherein the paging message
It carries key updating and indicates information；Alternatively, the base station by UE described in radio resource control RRC connection reconfiguration message informing more
New key, wherein the RRC connection reconfigurations message carries key updating and indicates information.
23. a kind of device of data transmission, which is characterized in that it is applied to user equipment (UE), including：
First processing module, for when UE is in default state, transmission data to be handled using the configuration mode of default state；Wherein,
The default state refers to the state that the interface between UE and base station disconnects and the interface holding between the base station and core net connects.
24. device according to claim 23, which is characterized in that the first processing module, for by it is following at least
One of mode using preset state configuration mode handle transmission data：
The configuration mode of radio bearer under connected state of the user plane according to preservation handles the transmission data；
In user plane the transmission data is handled according to the configuration mode of scheduled radio bearer；
In user plane the transmission data is handled according to the configuration mode of the radio bearer of target BS.
25. device according to claim 23, which is characterized in that described device further includes：
Second processing module, for being under the default state as UE, and any data radio bearer DRB or Signaling Radio Bearer
When the COUNT values that PDCP layers of the Packet Data Convergence Protocol of SRB uses reach the COUNT values of triggering UE application key updatings, hair
Play key updating process.
26. device according to claim 23, which is characterized in that described device further includes：
Receiving module carries key updating instruction for receiving the paging message for carrying key updating instruction information alternatively, receiving
The radio resource control RRC connection reconfiguration message of information；
Third processing module, for after the receiving module receives the paging message, carrying out at least one of operation：
Reset media access control MAC layer；Rebuild wireless spread-spectrum technology rlc layer；More new key；By PDCP layers of Packet Data Convergence Protocol
The COUNT values used are set as 1；According to the configuration mode preserved under default state, PDCP layers and rlc layer are configured；In MAC layer and object
Manage layer PHY application default configuration parameters；And it after executing aforesaid operations, is maintained under default state；
Alternatively, for after the receiving module receives the RRC connection reconfigurations message, at least one of operation is carried out：
Reset MAC layer；Rebuild rlc layer；More new key；The COUNT values that PDCP layers use are set as 1；According to what is preserved under default state
Configuration mode configures PDCP layers and rlc layer；In MAC layer and PHY application default configuration parameters；And execute aforesaid operations it
Afterwards, RRC connection reconfigurations are sent to base station using unauthorized transmission mode and completes message, and be maintained under default state.
27. device according to claim 23, which is characterized in that described device further includes：Transmitting module, for using non-
The transmission mode of mandate emits the transmission data.
28. a kind of device of data transmission, which is characterized in that it is applied to base station, including：
First indicating module, the configuration mode for indicating default state to user equipment (UE), so that the UE is used in default state
The configuration mode handles transmission data, wherein the default state refer to the interface between UE and base station disconnect and the base station with
Interface between core net keeps the state of connection.
29. device according to claim 28, which is characterized in that described device further includes：Second indicating module, for referring to
Show that UE enters and presets state.
30. device according to claim 28, which is characterized in that described device further includes：First transmission module, for leading to
It crosses system information broadcast or radio resource control RRC signaling sends the COUNT values of triggering UE application key updatings, so as to be in
UE under default state, makes in PDCP layers of the Packet Data Convergence Protocol of any Data Radio Bearer DRB or Signaling Radio Bearer SRB
When COUNT values reach the COUNT values of the triggering UE application key updatings, key updating process is initiated.
31. device according to claim 30, which is characterized in that described device further includes：
Request receiving module, the key updating request sent for receiving the UE；
Judgment module, for after the key updating request that the request receiving module receives that the UE is sent, judging institute
State the COUNT values whether the COUNT values that the PDCP layers of any DRB or SRB of UE use reach triggering UE application key updatings；
Second transmission module is that when being, complex response message is sent back to the UE for the result in the judgment module,
In, the reply response message carries key updating and indicates information.
32. device according to claim 28, which is characterized in that described device further includes：
Monitoring modular, the packet data convergence association of any data radio bearer DRB or Signaling Radio Bearer SRB for monitoring UE
Discuss the PDCP layers of COUNT values used；
Notification module, for making in PDCP layer of the monitoring module monitors to any DRB or SRB of the UE under default state
When COUNT values reach the COUNT values of triggering UE application key updatings, the UE more new keys are notified by paging message,
Wherein, the paging message carries key updating and indicates information；Alternatively, logical by radio resource control RRC connection reconfiguration message
Know the UE more new keys, wherein the RRC connection reconfigurations message carries key updating and indicates information.
33. a kind of system of data transmission, which is characterized in that including：User equipment (UE) and base station；
The base station is used to indicate to preset to UE the configuration mode of state；The UE is used in default state using at the configuration mode
Manage transmission data；Wherein, the default state refers to the disconnection of the interface between UE and base station and connecing between the base station and core net
Mouth keeps the state of connection.
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| CN108616880B (en) | 2022-07-29 |
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