CN106559913B - Data transfer control method when mobile terminal and its LTE and WLAN are converged - Google Patents
Data transfer control method when mobile terminal and its LTE and WLAN are converged Download PDFInfo
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- CN106559913B CN106559913B CN201510622368.6A CN201510622368A CN106559913B CN 106559913 B CN106559913 B CN 106559913B CN 201510622368 A CN201510622368 A CN 201510622368A CN 106559913 B CN106559913 B CN 106559913B
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Abstract
Data transfer control method when mobile terminal and its LTE and WLAN are converged, which comprises when receiving the data of unknown carrying of WLAN transmission, the data of the unknown carrying are stored, and start timing；When receiving RRC connection reconfiguration confidence before preset time arrival and enabling, the data of the unknown carrying are performed corresponding processing, the RRC connection reconfiguration confidence enable in include the unknown carrying information；When reaching in preset time and not receiving the RRC connection reconfiguration confidence of base station transmission and enable, the data of the unknown carrying are abandoned.Above-mentioned scheme can improve the reliability of bearer service data transmission in mobile terminal in LTE and WLAN convergence.
Description
Technical field
The present invention relates to field of communication technology, data when being converged more particularly to a kind of mobile terminal and its LTE and WLAN
Transfer control method.
Background technique
Long term evolution (Long Term Evolution, LTE) and WLAN (Wireless LAN, WLAN) convergence
(LTE-WLAN Aggregation, LWA) is mobile terminal (RRC Connected) in wireless heterogeneous networks connection status
It is configured to carry out data transmission using the radio resource of LTE and WLAN simultaneously by base station, at this time the base station in mobile terminal and LTE
Keep RRC connection, the Non-Access Stratum signaling of mobile terminal is responsible for transmitting that (the Non-Access Stratum signaling of uplink is sent by base station by base station
To core net, the Non-Access Stratum signaling of downlink is sent to mobile terminal by base station).Mobile terminal in the present invention supports LTE
With the convergence of WLAN.That administers WLAN resource is known as WLAN terminal (WLAN Termination, WT).
In LTE and WLAN convergence, downlink grouped data convergence protocol (the Packet Data of each carrying
Convergence Protocol, PDCP) data packet by be located at base station PDCP entity generate, pass through the Radio Link control of LTE
(Radio Link Control, RLC) layer or media intervention control (Medium Access Control, MAC) layer are made, or
Person is transmitted to mobile terminal by WLAN.Referring to Figure 1 and shown in Fig. 2, in coexistence scenario, LTE and WLAN convergence is supported
Base station can be attached by the backhaul link of idealization or inside with WLAN.And in non-coexistence scenario, support LTE and
The base station of WLAN convergence can be attached by the backhaul link of non-ideal with WT.It is shown in Figure 1, in coexistence scenario
In, mobile terminal can establish multiple radio bearers, as downlink data transmission is carried merely with the MCG of LTE transmission resource
(Master Cell Group Bearer)；Downlink data transmission utilizes the separation of LTE and WLAN transfer resource to carry simultaneously
(Split Bearer)；Downlink data transmission carries (Switched Bearer) merely with the transfer of WLAN transfer resource, transfer
The PDCP entity of carrying is also located in the base station of LTE system.For separation carrying or transfer carrying that mobile terminal is established, this is held
Need to be inserted into radio bearer (Data Radio Bearer, the DRB) mark of the data in the data packet that the PDCP entity of load issues
Information identifies mobile terminal by the DRB to distinguish the data packet of different bearer.Wherein, to the PDCP of carrying
The data packet that entity issues is inserted into the processing of radio bearer (Data Radio Bearer, the DRB) mark of the data, Ke Yiyou
The LWA adaptation layer (LWA Adaptation Layer) newly introduced is implemented, or the PDCP entity by enhancing is implemented.
In the prior art, when mobile terminal is in LTE and WLAN convergence state, base station may modify mobile terminal institute
The type of carrying is established, base station can pass through WT modification process (WLAN Termination Modification
Procedure) and WLAN terminal negotiates to modify the type of the established carrying of mobile terminal, and then base station passes through wireless heterogeneous networks
(Radio Resource Control, RRC) signals the variation of mobile terminal bearer types, and the transmission of RRC signaling needs
Time that will be at least 10 milliseconds, this, which will lead to, generates the asynchronous of wireless parameter configuration between mobile terminal and WT, and then generates
Data transmission is asynchronous, and the processing result such as triggering Radio Link for causing mobile terminal to generate mistake is rebuild, and influences mobile terminal
Middle bearer service is normally carried out.
Summary of the invention
The technical issues of embodiment of the present invention solves is how to improve in mobile terminal to carry industry in LTE and WLAN convergence
The reliability of data of being engaged in transmission.
To solve the above problems, data transfer control method when being converged the embodiment of the invention provides a kind of LTE and WLAN,
The method, comprising:
When receiving the data of unknown carrying of WLAN transmission, the data of the unknown carrying are stored, and opens
Beginning timing；
When the preset time arrival before receive base station transmission RRC connection reconfiguration confidence enable when, to it is described not
Know that the data of carrying perform corresponding processing, the RRC connection reconfiguration confidence enables the information including the unknown carrying；
When being reached in preset time and not receiving the RRC connection reconfiguration confidence of base station transmission and enable, abandon it is described not
Know the data of carrying.
Optionally, the data by the unknown carrying store, comprising: store the data of the unknown carrying
In the MAC layer of WLAN, the PDCP layer of LTE or LWA adaptation layer.
Optionally, the preset time is true by the base station.
Optionally, the method also includes:
When receiving the switching within cell signaling of base station transmission, the downlink bearing data transmitted via WT is continued to；
When determining, received carrying data are unsatisfactory for preset condition, held respectively to described using original cipher key and new key
Data are carried to be decrypted；
When determining, received carrying data meet the preset condition, using the new key to the carrying data
It is decrypted.
Optionally, the method also includes: when determine institute received all carryings carrying data be all satisfied it is described preset
When condition, the original cipher key is deleted.
Optionally, the preset condition are as follows: by received non-MCG carrying downlink data packet sequence number, determine
The downlink data packet that the non-MCG carrying is carried using the non-MCG before first downlink data packet of new key encryption
Have received.
The embodiment of the invention also provides a kind of mobile terminal, the mobile terminal includes:
Storage control unit, suitable for when receive WLAN transmission unknown carrying data when, by the unknown carrying
Data are stored, and start timing；
Judging unit, suitable for the RRC for the base station transmission for judging whether to receive base station transmission before preset time reaches
Connection reconfiguration confidence enables, and the RRC connection reconfiguration confidence enables the information including the unknown carrying；
Processing unit, it is right suitable for when receiving the RRC connection reconfiguration confidence before preset time arrival and enabling
The data of the unknown carrying perform corresponding processing, and the RRC connection reconfiguration confidence enables the information including the unknown carrying；
Discarding unit, suitable for when preset time reaches and do not receive the RRC connection reconfiguration confidence and enable, described in discarding
The data of unknown carrying.
Optionally, the storage control unit is suitable for the data of the unknown carrying being stored in the MAC layer of WLAN, LTE
PDCP layer or LWA adaptation layer.
Optionally, the preset time is determined by the base station.
Optionally, the mobile terminal further include:
Receiving unit, suitable for continuing to via WT transmission when receiving the switching within cell signaling of base station transmission
Downlink bearing data；
Judging unit, suitable for judging, whether received carrying data meet preset condition；
Decryption unit, suitable for when determining that the received carrying data of institute are unsatisfactory for the preset condition, using original cipher key with
New key is respectively decrypted the carrying data；When determining, received carrying data meet the preset condition, adopt
The carrying data are decrypted with the new key.
Optionally, the mobile terminal further include: delete unit, suitable for when determine received all carryings carrying number
When according to being all satisfied the preset condition, the original cipher key is deleted.
Optionally, the preset condition are as follows: by received non-MCG carrying downlink data packet sequence number, determine
The downlink data packet that the non-MCG carrying is carried using the non-MCG before first downlink data packet of new key encryption
Have received.
Compared with prior art, technical solution of the present invention has the advantage that
Above-mentioned scheme saves the data of the unknown carrying when mobile terminal receives the data of unknown carrying
Preset time, before the preset time expires, when the signaling that the carrying for receiving base station transmission changes, not to preservation
Know that the data of carrying carry out subsequent processing, RRC company can be initiated when receiving the data of unknown carrying to avoid mobile terminal
It connects the carrying data rebuild and transmitted caused by the processing result of the mistake such as process to terminate, thus mobile terminal can be improved
In bearer data transmission reliability.
Detailed description of the invention
The block schematic illustration of coexistence scenario when Fig. 1 is LTE and WLAN in the prior art convergence；
The block schematic illustration of non-coexistence scenario when Fig. 2 is LTE and WLAN in the prior art convergence；
The flow chart of data transfer control method when Fig. 3 is one of embodiment of the present invention LTE and WLAN convergence；
Fig. 4 is the flow chart of data transfer control method when another kind LTE and WLAN is converged in the embodiment of the present invention；
Fig. 5 is the structural schematic diagram of the mobile terminal in the embodiment of the present invention.
Specific embodiment
In the prior art, (WT is added by WLAN terminal (WLAN Termination, WT) in base station
Addition) process is mobile terminal configuration WLAN resource, realizes the convergence of LTE and WLAN.In WT Addition process,
When base station and WLAN terminal consult resource distribution, and about WLAN resource distribution and separation carries and/or transfer is held
After load configuration is sent to mobile terminal, after mobile terminal accesses the network of WLAN, mobile terminal and WLAN begin to use WLAN to provide
Source, i.e. WLAN realize the synchronous of parameter configuration with mobile terminal.After mobile terminal accesses WLAN, WLAN starts to mobile whole
End transmission data.
When being in the convergence state of LTE and WLAN, base station may carry out the carrying having built up in mobile terminal
Adjustment accordingly, such as type of change carrying, will carry from MCG bearing modification is Split Bearer, or is increased newly
Switched Bearer.At this point, base station can initiate modification request WT Modification Request to WT, and repaired described
Change the content that bearing modification is indicated in request WT Modification Request.If the modification that WT allows base station to initiate, WT
Confirmation message will be returned to base station.Base station passes through wireless heterogeneous networks (Radio after the confirmation message for receiving WT return
Resource Control, RRC) signaling, if RRC connection reconfiguration confidence enables the instruction to mobile terminal notice bearing modification, shifting
Dynamic terminal receives after RRC connection reconfiguration confidence enables, and knows the information of bearing modification, the modification that available WT is sent to it
The data of (such as Split Bearer or newly-increased Switched Bearer) are carried afterwards.
From above-mentioned introduction as can be seen that in the process of WT Modification, WT will be arrived prior to acquisition for mobile terminal
The information changed is carried, and mobile terminal has accessed WT at this time, WT may not receive RRC connection reconfiguration in mobile terminal
Before confidence enables, the data carried after newly-increased or change are just sent to mobile terminal.But mobile terminal is not receiving
When RRC connection reconfiguration confidence enables, after access layer such as PDCP layers or LWA adaptation layer receive the data of unknown carrying, it will lead to
The processing result of mistake, for example initiate RRC connection reconstruction process and terminate current data and transmit, it affects in mobile terminal and holds
The problem of data of load business are transmitted, and accordingly, there exist poor reliability.
To solve the above-mentioned problems in the prior art, technical solution used in the embodiment of the present invention passes through mobile terminal
To the data of received unknown carrying save preset time, before the preset time expires (i.e. time-out or Expire),
When the signaling that the carrying for receiving base station transmission changes, subsequent processing is carried out to the data of the unknown carrying of preservation, it can be with
Improve the reliability of the bearer service data transmission in mobile terminal.
To make the above purposes, features and advantages of the invention more obvious and understandable, with reference to the accompanying drawing to the present invention
Specific embodiment be described in detail.
The flow chart of data transfer control method when Fig. 3 shows one of embodiment of the present invention LTE and WLAN convergence.
Data transfer control method when LTE as shown in Figure 3 and WLAN are converged may include:
Step S301: when receiving the data of unknown carrying of WLAN transmission, the data of the unknown carrying are carried out
Storage, and start timing；
Step S302: when the RRC connection reconfiguration confidence for receiving base station transmission before preset time reaches enables, to institute
The data for stating unknown carrying perform corresponding processing, and the RRC connection reconfiguration confidence enables the information including the unknown carrying.
Step S303: when the preset time reaches and do not receive the RRC connection reconfiguration confidence and enable, described in discarding
The data of unknown carrying.
Below in conjunction with Fig. 4 in the embodiment of the present invention LTE and WLAN converge when data transfer control method make into one
Walk detailed introduction.
The signaling process figure of data transfer control method when Fig. 4 shows LTE and WLAN convergence in present invention implementation.This
When mobile terminal be in RRC connected state, and be configured with LTE and WLAN convergence.LTE and WLAN as shown in Figure 4
Data transfer control method when convergence may include:
Step S401: when receiving the data of unknown carrying of WLAN transmission, the data of the unknown carrying are carried out
Storage, and start timing.
In specific implementation, after the information of base station and the modification of WT negotiating bearer, WT is sending agreement carrying to base station
It, may be immediately according to the content of the bearing modification (such as newly-increased separation carrying), Xiang Yidong after the confirmation message of modification
Terminal sends new bearer data (sending the data of separation carrying) corresponding with the content of the bearing modification.At this point, because
Then base station sends to mobile terminal after receiving the confirmation message of agreement bearing modification of WT transmission and carries the carrying
The RRC connection reconfiguration confidence of the information of modification enables, so that mobile terminal knows that WT will be sent to it and the bearing modification
The corresponding new bearer data of information.But since mobile terminal is before receiving the information of bearing modification of base station transmission, WT
It has begun to mobile terminal and sends the new bearer data, and mobile terminal not yet knows the information of the bearing modification, this
When, mobile terminal will be incapable of recognizing that the new bearer data, and be treated as unknown carrying data.
It should be noted that if bearing modification is that MCG carrying reconfiguration is set to separation carrying or transfer carrying, this time shift
Dynamic terminal can identify the carrying by load identification, but the RRC configuration before mobile terminal foundation thinks that the carrying is MCG
Carrying, the reception of downlink data is to be sent to mobile terminal from the side LTE, if mobile terminal flanks from WLAN and receives this and hold
The data of load need to be regarded as the data of unknown carrying.
Wherein, mobile terminal can't initiate Radio Link reconstruction Flow ends and work as when receiving unknown carrying data
The preceding transmission for establishing carrying data, but received unknown carrying data is stored, be such as stored in WLAN MAC layer,
The PDCP layer of LTE or the LWA adaptation layer newly introduced, start simultaneously at timing.
In specific implementation, as sart point in time at the time of storing the unknown carrying data, when will be described default
Between be used as end time point.Wherein, from the outset between point to the monitoring of the corresponding duration of end time point can pass through timer
It realizes.
In specific implementation, from the outset between point to the duration between preset time can be preset duration, or
Person can the base station set, and the duration can be configured according to the actual needs, as long as setting it is described when
The long information including unknown carrying that may insure mobile terminal and receive base station transmission, that is, carry the information of bearing modification
RRC connection reconfiguration confidence enables.
Step S402: the carrying for judging whether to receive base station transmission before the preset time reaches described unknown is held
The RRC connection reconfiguration confidence of information carrying breath enables, and when the judgment result is no, step S403 can be executed, conversely, can then execute step
Rapid S404.
In specific implementation, the RRC connection reconfiguration confidence enable include the unknown carrying information, i.e. bearing modification
Information, such as mark of unknown carrying and the type of carrying, so that mobile terminal is receiving the RRC connection reconfiguration confidence
The information of bearing modification can be known when enabling.Wherein, the unknown carrying can be newly-increased carrying, be also possible to mobile terminal
The carrying having built up, but bearer types have changed.For example, the MCG bearing modification that base station has built up mobile terminal
Ingredient is from carrying, and during this, the mark of carrying does not change, but the type carried is modified by base station.
Step S403: the data of the unknown carrying are abandoned.
In specific implementation, when the preset time reaches namely preset timer has timed, out, mobile terminal is still
When not receiving the RRC connection reconfiguration confidence and enabling, then it can determine that the unknown carrying data are not base stations by initiating WT
The carrying data obtained after modification request process (WT Modification Procedure).At this point, mobile terminal can abandon
The unknown carrying data, and trigger Radio Link and rebuild process.
Step S404: the data of the unknown carrying are performed corresponding processing.
In specific implementation, before preset time arrival, i.e., before timer has not timed out, mobile terminal is received
When the RRC connection reconfiguration confidence of the carrying that base station the is sent unknown carrying information enables, then the unknown carrying number can be determined
Pass through the carrying data initiating to obtain after WT modification process according to being base station.At this point, mobile terminal can be to the MAC for being stored in WLAN
Layer or the PDCP layer in LTE or the carrying data in the LWA adaptation layer newly introduced carry out subsequent processing.
For example, being held by MAC layer by described when the unknown carrying data are stored in the MAC layer of WLAN by mobile terminal
It carries data and is transferred to LWA adaptation layer, LWA adaptation layer deletes the load identification for including in data packet, is then passed to this
The corresponding PDCP entity of carrying, when it is described it is unknown be carried as Split Bearer when, by PDCP entity to the carrying data
It is decrypted and is sent to one layer after sorting；When it is described it is unknown be carried as Switched Bearer when, PDCP entity is to described
Carrying data are sent to one layer after being decrypted.
When the unknown carrying data are stored in the PDCP layer of LTE by mobile terminal, mean the number of the carrying at this time
Deleted according to load identification included in packet, when it is described it is unknown be carried as Split Bearer when, by PDCP entity to institute
Carrying data are stated to be decrypted and be sent to one layer after sorting；When it is described it is unknown be carried as Switched Bearer when, PDCP
Entity is sent to upper one layer after the carrying data are decrypted.
In specific implementation, the data transfer control method when LTE in the embodiment of the present invention and WLAN is converged, can also wrap
It includes:
Step S405: state is converged when mobile terminal is in LTE and WLAN, and receives the switching within cell of base station transmission
When signaling, the downlink bearing data transmitted via WT is continued to.
In specific implementation, when mobile terminal is in LTE and WLAN convergence state, and the side LTE key needs to update, base
Standing-meeting sends switching within cell signaling so that mobile terminal implements key updating to mobile terminal.Mobile terminal is according to existing rule
New key is generated, is not unfolded to describe herein.At this point, mobile terminal does not discharge and the connection of WLAN, but continue to
The downlink bearing data of WLAN transmission.
Step S406: judging whether the received carrying data of institute meet preset condition, when the judgment result is yes, can be with
Step S407 is executed, conversely, thening follow the steps S408.
Step S407: it is decrypted respectively to from the received carrying data of WLAN using original cipher key and new key.
In specific implementation, since when receiving the switching within cell signaling of base station transmission, mobile terminal is continued to
The downlink bearing data of WLAN transmission, because mobile terminal can not know that the downlink bearing data of institute's received WLAN transmission is use
Original cipher key still uses new key to be encrypted.Therefore, mobile terminal will continue to retain original cipher key, and receive WLAN transmission
Downlink bearing data when, using original cipher key and new key respectively to the downlink bearing data of received WLAN transmission solve
It is close, to ensure the data integrity of corresponding bearer service.
What needs to be explained here is that the base station of mobile terminal and LTE will after mobile terminal receives switching within cell signaling
Signaling and data transmission are carried out using new key.
Step S408: it is decrypted using new key to from the received carrying data of WLAN.
In specific implementation, the downlink data for the carrying established by mobile terminal can be introduced in PDCP layers of processing
PDCP sequence number, to show position of the currently received downlink data in entire data flow.When mobile terminal is using former close
Key and new key are attempted respectively after a period of time is decrypted to the downlink data of received some carrying via WLAN transmission,
It can be determined according to PDCP layer sequence number, for example and the PDCP data packet for the carrying having been received, via being somebody's turn to do for WLAN transmission
Whether there is also the data packets encrypted by original cipher key in the downlink data of carrying, and according to PDCP layers of sequence number, mobile terminal can
To determine that the carrying is encrypted using the sequence number of the last one data packet of original cipher key encryption, and using the new key
First data packet sequence number.
Wherein, when mobile terminal determines that established Split bearer and Switched Bearer is transmitted via WLAN
Downlink data encrypted by new key or there is no when the downlink data encrypted by original cipher key, that is, meet preset condition: it is logical
The sequence number for crossing downlink data packet determines the use that the Split bearer or Switched Bearer are transmitted via WLAN
When the downlink data packet of the carrying before first downlink data packet of new key encryption has received, mobile terminal can be with
Determine, for some Split Bearer or Switched Bearer, using new key encryption first data packet it
The data packet (after PDCP sequence number) will be all made of new key and encrypt afterwards.At this point, if mobile terminal has received that
All data packets before the sequence then show that the data packet of the carrying can be encrypted using new key, at this time mobile terminal without
The carrying must be decrypted via the downlink data that WLAN is transmitted using original cipher key again.
In specific implementation, data transfer control method when LTE as shown in Figure 4 and WLAN are converged can also include:
Step S409: when determining that all non-MCG carryings established are all satisfied the preset condition, it is close to delete the original
Key.
In specific implementation, mobile terminal may establish multiple Split bearer or Switched Bearer, mobile
Terminal is all made of newly in the downlink data packet via WLAN transmission for determining all Split bearer and Switched Bearer
Key encrypt when, because original cipher key will not be used for institute it is received via WLAN transmission downlink bearing data when, can delete
Original cipher key in order to decryption oprerations, and saves storage resource.
Fig. 5 shows the structural schematic diagram of one of embodiment of the present invention mobile terminal.Mobile terminal as shown in Figure 5
500, it may include storage control unit 501, the first judging unit 502, processing unit 503 and discarding unit 504, in which:
Storage control unit 501, suitable for when receive WLAN transmission unknown carrying data when, by the unknown carrying
Data stored, and start timing.
In specific implementation, the storage control unit 501 is suitable for the data of the unknown carrying being stored in WLAN's
The PDCP layer or LWA adaptation layer of MAC layer, LTE.
First judging unit 502, suitable for judging that whether receiving base station before preset time reaches is sent to base station hair
The RRC connection reconfiguration confidence sent enables, and the RRC connection reconfiguration confidence enables the information including the unknown carrying.
In specific implementation, the preset time can be determined by the base station, or be preset by agreement.
Processing unit 503, it is right suitable for when receiving RRC connection reconfiguration confidence before preset time arrival and enabling
The data of the unknown carrying perform corresponding processing, and include the letter of the unknown carrying in the RRC connection reconfiguration confidence order
Breath.
Discarding unit 504, suitable for abandoning when preset time reaches and do not receive the RRC connection reconfiguration confidence and enable
The data of the unknown carrying.
In specific implementation, the mobile terminal 500 as shown in Figure 5 can also be sentenced including receiving unit 505, second
Disconnected unit 506 and decryption unit 507, in which:
Receiving unit 505, suitable for continuing to transmit via WT when receiving the switching within cell signaling of base station transmission
Downlink bearing data.
Second judgment unit 506, suitable for judging, whether received carrying data meet preset condition.
In specific implementation, it is received carrying data packet in include corresponding sequence number information, the preset condition
Are as follows: by received non-MCG carrying downlink data packet sequence number, determine that the non-MCG carrying is encrypted using new key
First downlink data packet before the downlink data packet of the non-MCG carrying have received.
Decryption unit 507, when being unsatisfactory for the preset condition suitable for carrying data received when determining, using original cipher key
The carrying data are decrypted respectively with the new key；When determining, received carrying data meet the preset condition
When, the carrying data are decrypted using the new key.
In specific implementation, the mobile terminal 500 as shown in Figure 5 can also include deleting unit 508, in which:
Delete unit 508, suitable for when determine the carrying data of received all carryings be all satisfied the preset condition when,
Delete the original cipher key.
Those of ordinary skill in the art will appreciate that all or part of the steps in the various methods of above-described embodiment is can
It is completed with instructing relevant hardware by program, which can store in computer readable storage medium, and storage is situated between
Matter may include: ROM, RAM, disk or CD etc..
The method and system of the embodiment of the present invention are had been described in detail above, the present invention is not limited thereto.Any
Field technical staff can make various changes or modifications without departing from the spirit and scope of the present invention, therefore guarantor of the invention
Shield range should be defined by the scope defined by the claims..
Claims (10)
- Data transfer control method when 1. a kind of LTE and WLAN is converged characterized by comprisingWhen receiving the data of unknown carrying of WLAN transmission, the data of the unknown carrying are stored, and start to count When；When the RRC connection reconfiguration confidence for receiving base station transmission before preset time reaches enables, to the unknown carrying Data perform corresponding processing, and include the information of the unknown carrying in the RRC connection reconfiguration confidence order；When not receiving the RRC connection reconfiguration confidence when the preset time reaches and enable, the data of the unknown carrying are abandoned；When receiving the switching within cell signaling of base station transmission, the downlink bearing data transmitted via WT is continued to；When determining, received carrying data are unsatisfactory for preset condition, using original cipher key and new key respectively to the carrying number According to being decrypted；AndWhen determining, received carrying data meet the preset condition, the carrying data are carried out using the new key Decryption.
- Data transfer control method when 2. LTE according to claim 1 and WLAN is converged, which is characterized in that described by institute The data for stating unknown carrying are stored, comprising: the data of the unknown carrying are stored in the PDCP of the MAC layer of WLAN, LTE Layer or LWA adaptation layer.
- Data transfer control method when 3. LTE according to claim 1 and WLAN is converged, which is characterized in that described default Time is determined by the base station, or is preset by agreement.
- Data transfer control method when 4. LTE according to claim 1 and WLAN is converged, which is characterized in that further include: when Determine the carrying data of received all carryings when being all satisfied the preset condition, delete the original cipher key.
- Data transfer control method when 5. LTE according to claim 1 and WLAN is converged, which is characterized in that described default Condition are as follows: by received non-MCG carrying downlink data packet sequence number, determine the non-MCG carrying using new key The downlink data packet of the non-MCG carrying before first downlink data packet of encryption has received.
- 6. a kind of mobile terminal characterized by comprisingStorage control unit, suitable for when receive WLAN transmission unknown carrying data when, by the data of the unknown carrying It is stored, and starts timing；First judging unit, suitable for judging that the RRC connection reconfiguration for whether receiving base station transmission before preset time reaches is set Signaling, the RRC connection reconfiguration confidence enable the information including the unknown carrying；Processing unit, suitable for when receiving the RRC connection reconfiguration confidence before preset time arrival and enabling, to described The data of unknown carrying perform corresponding processing；Discarding unit, suitable for when preset time reach and do not receive base station transmission RRC connection reconfiguration confidence enable when, abandon institute State the data of unknown carrying；Receiving unit, suitable for continuing to the downlink transmitted via WT when receiving the switching within cell signaling of base station transmission Carry data；Second judgment unit, suitable for judging, whether received carrying data meet preset condition；AndDecryption unit, when being unsatisfactory for the preset condition suitable for carrying data received when determining, using original cipher key and Xinmi City Key is respectively decrypted the carrying data；When determining, received carrying data meet the preset condition, using institute New key is stated the carrying data are decrypted.
- 7. mobile terminal according to claim 6, which is characterized in that the storage control unit is suitable for unknown holding described The data of load are stored in the PDCP layer or LWA adaptation layer of the MAC layer of WLAN, LTE.
- 8. mobile terminal according to claim 6, which is characterized in that the preset time determines by the base station, or by Agreement is preset.
- 9. mobile terminal according to claim 6, which is characterized in that further include: unit is deleted, suitable for being received when determination When the carrying data of all carryings are all satisfied the preset condition, the original cipher key is deleted.
- 10. mobile terminal according to claim 6, which is characterized in that the preset condition are as follows: received non-by institute The sequence number of the downlink data packet of MCG carrying determines the non-MCG carrying using first downlink data packet of new key encryption The downlink data packet of the non-MCG carrying before has received.
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| CN201510622368.6A CN106559913B (en) | 2015-09-25 | 2015-09-25 | Data transfer control method when mobile terminal and its LTE and WLAN are converged |
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| CN1949697A (en) * | 2005-10-14 | 2007-04-18 | 大唐移动通信设备有限公司 | Data transmission method for ensuring receiver and transmitter data identification |
| CN101325804A (en) * | 2007-06-11 | 2008-12-17 | 华为技术有限公司 | Method, device and system for acquiring cryptographic key |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1949697A (en) * | 2005-10-14 | 2007-04-18 | 大唐移动通信设备有限公司 | Data transmission method for ensuring receiver and transmitter data identification |
| CN101325804A (en) * | 2007-06-11 | 2008-12-17 | 华为技术有限公司 | Method, device and system for acquiring cryptographic key |
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