CN100428858C - Method and apparatus for shortening soft switch-over time delay - Google Patents
Method and apparatus for shortening soft switch-over time delay Download PDFInfo
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- CN100428858C CN100428858C CNB2006100035260A CN200610003526A CN100428858C CN 100428858 C CN100428858 C CN 100428858C CN B2006100035260 A CNB2006100035260 A CN B2006100035260A CN 200610003526 A CN200610003526 A CN 200610003526A CN 100428858 C CN100428858 C CN 100428858C
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Abstract
The present invention discloses a method for shortening the time delay of soft handoff, which solves the problem that in the prior art, when executing one of other radio resource control (RRC) procedures except a soft handoff procedure, a radio network controller (RNC) doesn't support the parallelism of the radio resource control (RRC) procedure and the soft handoff procedure so as to result in the increase of the time delay of the soft handoff and disrupt service. The method comprises that when executing one of the other radio resource control (RRC) procedures except the soft handoff procedure, the radio network controller (RNC) receives a measurement report which is reported by a terminal device for requesting the soft handoff; the RNC judges whether the terminal device supports the parallelism execution of the other radio resource control procedures and the soft handoff procedure, if true, then the RNC starts the soft handoff procedure in the procedures of carrying out the other radio resource control procedures, else the RNC refuses to carry out the soft handoff procedure in the other radio resource control procedures. The present invention also discloses a radio network controller and a terminal device.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of method and device that shortens soft switch-over time delay.
Background technology
Soft switch-over time delay is major issue in the WCDMA system, and the long meeting of soft switch-over time delay causes switching untimely and call drop.Terminal equipment (UE) requires to carry out soft handover by reporting measurement reports, the soft handover request may appear at a plurality of signaling links, RB in the link that for example continues sets up, during the safe mode, during perhaps RB reshuffles, physical channel is reshuffled or transmission channel reshuffles.
Shown in Figure 1A, a typical handshaking procedure is as follows:
1, the up process that direct transfers: comprise that radio network controller (RNC) begins to accept first PDU of up direct-sending message, to last PDU that collects this up direct-sending message.
2, authentication process: comprise that RNC receives the authentication request of core net, RNC sends authentication request and gives user terminal (UE), and UE responds authentication request and finishes message to RNC, and RNC responds authentication request and finishes message to core net.Authentication request message is a direct-sending message at RNC.
3, ciphering process: comprise that RNC receives the safe mode command of core net, RNC sends safe mode command and gives UE, and UE responds safe mode command and finishes message to RNC, and RNC responds safe mode and finishes message to core net.
4, radio bearer (RB) is set up process: comprise that RNC receives RAB (RAB) the assignment request of core net, RNC finishes the network side resource bid, sends RB and sets up message to UE, after UE finishes RB foundation, sends RB foundation and finishes message to RNC.
5, the descending process that direct transfers: comprise that RNC sends descending direct-sending message to UE, receive that to RNC UE controls ACK that (RLC) layer is responded at Radio Link, confirm the process that the whole acceptance of direct-sending message finish.
RB reshuffles/and transmission channel reshuffles/and the physical channel reconfiguration course is shown in Figure 1B.Described RB reshuffles/and transmission channel reshuffles/and the physical channel reconfiguration course comprises: and RNC determines reconfiguration course, RNC finishes RB and reshuffles/and transmission channel reshuffles/the physical channel reconfiguration message issues, receive that the RB of UE reshuffles/transmission channel reshuffles/physical channel reshuffles and finishes message.
In soft handover area, occur the probability of soft switching process.The soft handover type has: increase Radio Link, deletion Radio Link, replace Radio Link.The soft switching process of follow-up indication comprises that RNC receives the measurement report that UE reports, and RNC finishes activating set updating and issues, and receives that the activating set updating of UE is finished message.
Shown in Fig. 1 C, be that example illustrates typical soft switching process to increase Radio Link:
1, according to the resource behaviour in service, the SRNC decision is set up a wireless links in the new sub-district of DRNC, sets up message RADIO LINK SETUP so send the RNSAP Radio Link to DRNC, the application Radio Resource.If this is article one Radio Link between DRNC and the UE, also should set up a signaling and connect at the Iur interface, be used to carry the RNSAP signaling relevant with this UE.
2, DRNC judgement SRNC request resource can be used, and sends NBAP agreement Radio Link to target NodeB and sets up request message RADIO LINK SETUP REQUEST, and NodeB starts up reception.
3, after NodeB becomes distribution of work SRNC requested resource, send the NBAP Radio Link to DRNC and set up response message RADIO LINK SETUP RESPONSE, report allocation result.
4, SRNC adopts the ALCAP agreement to initiate the Iub transmission bearer and sets up process.
5, DRNC sends the RNSAP Radio Link to SRNC and sets up response message RADIO LINKSETUP RESPONSE.
6, SRNC adopts the ALCAP agreement to initiate the Iur transmission bearer and sets up process.
7, SRNC sends RRC active set updating message (Radio Link increase) ACTIVE SET UPDATE (Radio Link Addition) by the DCCH channel to UE, comprises the RL information that needs increase in the message.
8, UE increases corresponding RL information in active set, returns the renewal of RRC active set to SRNC and finishes message ACTIVE SET UPDATE COMPLETE.The soft switching process that Radio Link increases finishes.
In the prior art, RNC does not support the soft handover during soft RB sets up process, shown in Fig. 2 A: RNC receives measurement report, but find the current RAB assignment process of carrying out, RNC buffer memory measurement report after wait RAB assignment process finishes, begins to handle measurement report, carry out soft handoff procedure, be equivalent to soft handover and be delayed.
For ciphering process, same RNC is not supported in the soft handover during the ciphering process, and the buffer memory measurement report causes soft switch-over time delay to increase.RB between RNC and the UE among the above-mentioned figure is set up message replace with safe mode command, RB sets up and to finish message and replace with safe mode command and finish message; RAB assignment message between RNC and the CN is replaced with safe mode command, and RAB assignment response replaces with safe mode command and finishes the flow chart that message can represent not support during the safe mode soft handover.
Except RB sets up, the ciphering process, RNC reshuffles at RB, transmission channel is reshuffled or physical channel is not supported soft handover during reshuffling flow process yet, causes soft switch-over time delay to increase equally.
In the prior art, UE does not support the soft handoff procedure during RB sets up process, shown in Fig. 2 B: UE receives activating set updating (ACTIVE SET UPDATE) message, and UE detects and exists RB to set up process, and UE responds activating set updating failure (ACTIVE SET UPDATE FAILURE) message.
Equally, UE receives ACTIVE SET UPDATE message, UE detect exist safe mode command process, RB to reshuffle, physical channel is reshuffled or the transmission channel reconfiguration course, UE responds ACTIVESET UPDATE FAILURE.
The typical time delay magnitude of RAB process is about 1 second.In handshaking procedure, if find to have ongoing RAB assignment or safe mode command process when RNC prepares to begin to carry out soft handover, RNC can postpone the processing soft handoff procedure, after wait RAB process or safe mode command are finished, just begins soft handoff procedure.Because soft switch-over time delay can increase by 0 to 1 second, make a call at switching zone customer, may cause call drop because of switching untimely.
In a word, for prior art,, may cause soft switch-over time delay to increase and interrupting service because RNC does not support this process and soft switching process to walk abreast when other RRC processes of carrying out except that soft handover.
Summary of the invention
The invention provides a kind of soft method and device of cutting time delay that shorten, solving in the prior art, thereby cause the soft switch-over time delay increase and the problem of interrupting service because of RNC does not support this process and soft switching process to walk abreast when other RRC processes of carrying out except that soft handover.
The invention provides following technical scheme:
A kind of method that shortens continuous time-delay under soft switching-over comprises the steps:
Receive the measurement report of the request soft handover that terminal equipment reports in radio network controller (RNC) other Radio Resources control (RRC) processes outside carrying out soft handover;
Described RNC judges whether terminal equipment supports described other Radio Resource control procedures and soft switching process executed in parallel, if, RNC sends indicating terminal equipment and carries out the order of soft handover, otherwise RNC refuses to walk abreast soft switching process in described other Radio Resource control procedures;
Terminal equipment receive RNC indication carry out the order of soft handover after described other RRC processes of cancellation or the current execution of buffer memory, preferentially carry out soft switching process and described other RRC processes of continuation this process is finished after; Perhaps
Terminal equipment utilizes the free time in described other RRC processes to finish soft switching process receiving after RNC indication carries out the order of soft handover.
According to said method:
RNC carries out described judgement according to the ability information of whether supporting described other Radio Resource control procedures and soft handover executed in parallel that terminal equipment reports; Perhaps, RNC carries out described judgement according to the version information that terminal equipment reports.
Terminal equipment reports described ability information or described version information to RNC when RRC sets up in the process or finishes.
In described ability information, describe whether support each described other Radio Resource control procedures and soft switching process executed in parallel respectively; Perhaps
Whether unified the description supports whole described other Radio Resource control procedures and soft switching process executed in parallel in described ability information.
The measurement report of further cache request soft handover described RNC refusal carries out soft switching process in described other Radio Resource control procedures after, and after described other Radio Resource control procedures are finished, carry out soft switching process.
Described other Radio Resource control procedures comprise that the up process that direct transfers, authentication process, ciphering process, radio bearer RB set up one of process, the descending process that direct transfers, RB reconfiguration course, transmission channel reconfiguration course and physical channel reconfiguration course.
Terminal equipment reports activating set updating to finish message after finishing soft switching process immediately; Perhaps, terminal equipment is finished the activating set updating that buffer memory need report behind the soft handover and is finished message, and reports the activating set updating of buffer memory to finish message after described other RRC processes are finished.
When if described other Radio Resource control procedures are ciphering process, terminal equipment is finished in the message notice RNC in safe mode command and is encrypted in order and finishes N protocol Data Unit PDU of message and come into effect afterwards, and wherein N is the integer more than or equal to 1.
If when described other Radio Resource control procedures were ciphering process, described terminal equipment carried out data transmit-receive according to new Active Set information; Then described terminal equipment is after knowing that RNC has correctly received safe mode command and finishes message, and the activating set updating that sends buffer memory to RNC is finished message.
Described terminal equipment is after the transmission safe mode command is finished message, and other up RRC message delay that needs sent to RNC send, and sends described other RRC message correct the reception after safe mode command is finished message.
When if described other Radio Resource control procedures are ciphering process, RNC is after sending safe mode command and receive safe mode command and finish during the message, the uplink user data unit of type is finished in the non-security mode order that buffer memory receives, after knowing the up sequence number that begins to encrypt, be decrypted, and finish in the non-security mode order that buffer memory receives before the uplink user data unit of type, described non-security mode order being finished the uplink user data unit of type resolves, if can correctly parse legal type of message and content, then carry out subsequent treatment, otherwise this user data cell of buffer memory.
When if described other Radio Resource control procedures are ciphering process, RNC notifies terminal equipment in the Security Mode Command message that sends, N the protocol Data Unit (PDU) that is encrypted in Security Mode Command message comes into effect afterwards, and wherein N is the integer more than or equal to 1.
If described other Radio Resource control procedures are ciphering process; described terminal equipment is after sending initial direct-sending message and during receiving Security Mode Command message; the order of buffer memory non-security mode finish type the down user data unit; after knowing the descending sequence number that begins to encrypt; be decrypted; and finish in the order of buffer memory non-security mode before the down user data unit of type; described non-security mode order being finished the down user data unit of type resolves; if can correctly parse legal type of message and content; then carry out subsequent treatment; otherwise this user data cell of buffer memory, terminal equipment is according to down user data unit unencryption and do not carry out integrity protection; unencryption and carried out integrity protection; encrypted and do not carried out integrity protection; perhaps encrypted and carried out integrity protection and resolved described user data cell.
A kind of radio network controller comprises
Be used to preserve and judge whether terminal equipment supports the ability information of other Radio Resource control procedures outside executed in parallel soft switching process and the soft handover or the memory module of version information;
When in described other Radio Resource control procedures, receiving the soft handover demand, obtain described ability information or version information from described memory module and confirm whether terminal supports the judge module of executed in parallel soft handover and described other Radio Resource control procedures;
, send indicating terminal equipment and carry out the order of soft handover when being in the judged result of judge module, perhaps, for not the time, refusal carries out the control module of soft switching process in described other Radio Resource control procedures in judged result.
A kind of terminal equipment comprises:
Can judge whether terminal equipment supports ability information of other Radio Resource control (RRC) processes outside executed in parallel soft switching process and the soft handover or the sending module that version information reports;
Be used to receive the receiver module of order and message;
In carrying out described other Radio Resource control procedures, the Executive Module of soft switching process is carried out in the instruction of the beginning soft handover that receives according to described receiver module.
When the present invention receives the soft handover request in other RRC processes except that soft handover, support in terminal under the situation of described other RRC processes and soft switching process executed in parallel, RNC begins this soft switching process, thereby can shorten soft switch-over time delay, shorten time delay magnitude average generally more than 0.3 second, therefore, the present invention can effectively avoid influencing normal business because of increasing soft switch-over time delay.
Description of drawings
Figure 1A is the schematic diagram of typical handshaking procedure in the prior art;
Figure 1B for RB in the prior art reshuffle/transmission channel reshuffles/schematic diagram of physical channel reconfiguration course;
Fig. 1 C is the flow chart that increases Radio Link in the prior art;
Fig. 2 A is the process chart that RNC does not support soft handover in the prior art during RB sets up process;
Fig. 2 B is the process chart that UE does not support soft handover in the prior art during RB sets up process;
Fig. 3 sets up the flow chart of process reporting ability information by RRC for UE in the embodiment of the invention;
Fig. 4 A is the process chart when RB sets up process RNC and receives the soft handover request and determine that UE supports the executed in parallel soft handover in the embodiment of the invention;
Fig. 4 B is the process chart when RB sets up process RNC and receives the soft handover request and determine that UE does not support the executed in parallel soft handover in the embodiment of the invention;
Fig. 5 A is that UE finishes in the message notice RNC in safe mode command and is encrypted in up safe mode command and finishes the flow chart that N protocol Data Unit of message comes into force afterwards in the embodiment of the invention;
Fig. 5 B is that RNC is provided with user data cell and submits for order in the embodiment of the invention, and process chart to the caching function of SDU is provided;
Fig. 5 C is that UE sends the flow chart that activating set updating is finished message after safe mode command is finished Radio Link control (RLC) acknowledge message of message receiving in the embodiment of the invention;
Fig. 5 D is that RNC notifies the flow chart that comes into force after N the PDU that UE is encrypted in descending Security Mode Command message in the embodiment of the invention in Security Mode Command message;
Fig. 5 E is that RNC is provided with user data cell for submitting in proper order in the embodiment of the invention, and UE provides the process chart to the caching function of SDU;
Fig. 6 is the structural representation of RNC in the embodiment of the invention;
Fig. 7 is the structural representation of terminal equipment in the embodiment of the invention.
Embodiment
In order to shorten soft switch-over time delay, the present invention is when RNC carries out other Radio Resources except that soft handover and controls the measurement report that receives the request soft handover that terminal equipment reports in (RRC) processes, further judge whether terminal supports described other Radio Resource control procedures and soft switching process executed in parallel, if support, RNC then issues activating set updating message with the parallel soft switching process that carries out in carrying out described other RRC processes, if terminal is not supported, then refuse in carrying out described other RRC processes, to carry out soft switching process.
Other Radio Resource control procedures except that soft handover comprise: the up process that direct transfers, authentication process, ciphering process (interacting message in the ciphering process has safe mode command, and safe mode command is finished message), the descending process that direct transfers, radio bearer (RB) are set up process, RB reconfiguration course, transmission channel reconfiguration course and physical channel reconfiguration course.
RNC can according to whether supporting of reporting of terminal equipment except that switching other RRC processes and the ability information of soft switching process executed in parallel carry out described judgement.Terminal equipment can when RRC sets up process and finishes or RRC sets up in the process or in the handshaking procedure or in the link maintenance process, report described ability information to RNC.On give the correct time and can utilize any message carrying capacity information that sends to RNC in these processes, also can increase new message carrying capacity information.For example, UE reports RNC with ability information when RRC sets up in the process or finishes, can inform whether RNC has support and the parallel ability of soft switching process by any message carrying capacity information in this process, as, UE carries described ability information by RRC connection setup complete message (RRC CONNECTION SETUP COMPLETE message) and gives RNC.
In the ability information that UE reports, each other RRC process except that soft handover of executed in parallel of whether supporting can be described respectively, the ability cell that carries in the message that reports as UE is as follows:
| Cell (IE) | Whether support with soft handover parallel |
| RB sets up | Y/N |
| Encrypt | Y/N |
| Authentication | Y/N |
| Descending direct transferring | Y/N |
| Up direct transferring | Y/N |
| RB reshuffles | Y/N |
| Transmission channel is reshuffled | Y/N |
| The physical channel reconfiguration course | Y/N |
Wherein: Y expresses support for, N or do not support, but can only be one of them.
In the ability information that UE reports, also can unify to describe and whether support whole described other Radio Resource control procedures and soft handover executed in parallel, the ability cell that carries in the message that reports as UE is as follows:
| Cell (IE) | Whether support with soft handover parallel |
| RB foundation, encryption, authentication, descendingly direct transfer, uply direct transfer, main RRC process such as RB reshuffles, transmission channel is reshuffled, physical channel is reshuffled | Y/N |
Except aforesaid way, RNC can carry out described judgement according to the UE version information of network side.The mode that reports version information identical with the mode of reporting ability information (as, UE can pass through the described version information of RRCCONNECTION SETUP COMPLETE information reporting).For example: the terminal equipment (travelling carriage) that regulation R7 reaches with version all needs support process parallel, if it is R7 or above version that the version information that RNC reports according to UE is determined current UE, determine that then UE supports described other RRC processes and soft handover executed in parallel, if the version information that RNC reports according to UE is determined current UE (as being R6, R5, R4 or R99 version) below the R7 version, determine that then UE does not support other RRC processes and soft handover executed in parallel (regulation for version is not limited to this, can determine according to practical situations).
Consult shown in Figure 3ly, UE is as follows by the flow process that RRC sets up process reporting ability information:
After step 4, RNC receive described RRC CONNECTION SETUP COMPLETE message, therefrom extract ability information and the preservation of UE.
Set up process by RRC and report the flow process of version information and in like manner above-mentioned, repeat no more.
Consult shown in Fig. 4 A, in setting up the RB process, the handling process when RNC receives the soft handover request and determines UE support executed in parallel soft handover is as follows:
Step 4, RNC set up process according to RB and can successfully prepare soft handover, finish relevant resource preparation.
Step 6, UE carry out activating set updating, and finish message to RNC transmission activating set updating after renewal is finished.
UE carry out that RB foundation, encryption, RB are reshuffled, transmission channel is reshuffled or the physical channel reconfiguration course in detect and soft switching process occurred, a kind of preferable mode is to utilize free time in this process to finish soft switching process (because carry out the time of soft switching process shorter); Another kind of mode is, cancellation or current RB foundation, encryption, the RB that carries out of buffer memory reshuffles, transmission channel is reshuffled or physical channel is reshuffled flow process (cancellation is meant the task that cancellation has begun, promptly return back to and do not begin this status of processes), preferentially carry out soft switching process, and after soft handover is finished, continue the flow process of aforementioned buffer memory.
Terminal equipment can report activating set updating to finish message after finishing soft switching process immediately, the activating set updating that also can buffer memory need report is finished message, and reshuffle at current RB foundation, encryption, the RB that carries out, transmission channel is reshuffled or the physical channel reconfiguration course reports the activating set updating of buffer memory to finish message after finishing.
For reshuffle at RB at RNC, physical channel is reshuffled, ciphering process, transmission channel are reshuffled etc. receive the measurement report of request soft handover and determine that UE supports the executed in parallel soft switching process in the process after, the parallel equally activating set updating message that issues of RNC, its processing procedure and in like manner above-mentioned repeats no more.
Consult shown in Fig. 4 B, in setting up the RB process, when RNC received the soft handover request and determines that UE does not support the executed in parallel soft handover, a kind of preferable processing mode was as follows:
Step 20, RNC issue RB to UE and set up order.
Step 21, UE send the measurement report of request soft handover to RNC.
Step 22, RNC detect RB and set up that process is not finished as yet and determine that according to the ability information (or copyright information) that UE reports this UE does not support RB to set up process and soft switching process executed in parallel.
Step 23, RNC refusal are set up process at RB and are carried out soft handover, buffer memory measurement report.
Step 24, UE send RB to RNC and set up response after finishing RB foundation.
Step 25, RNC issue activating set updating (ACTIVE SETUPDATE) message according to the measurement report of buffer memory to UE, begin parallel flow process.
Step 26, UE carry out activating set updating, and finish message to RNC transmission activating set updating after renewal is finished.
During do not carrying out soft handover behind the RNC buffer memory measurement report,, then utilize new measurement report to cover the measurement report of original buffer memory if receive the measurement report of terminal equipment again.
Certainly, in other RRC processes except that switching, when RNC receives the soft handover request and determines that UE does not support the executed in parallel soft handover, also can directly abandon the measurement report of request soft handover, trigger soft switching process by the measurement report of finishing after described other RRC processes that receives.
Encrypt with the parallel process of soft handover in, UE sends safe mode command and finishes after (securitycommand complete) message it, avoids one of in the following ways the potential call drop that brings after parallel:
(1) UE finishes in safe mode command in (security command complete) message and notifies RNC, and N the protocol Data Unit (PDU) of finishing message in up safe mode command encrypted afterwards and come into force.
Shown in Fig. 5 A, come into force by encrypting behind N PDU of postponement, can allow activating set updating finish message is non-encrypted mode (promptly Zhi Hou message is only encrypting messages).
(2) RNC is provided with user data cell (SDU) and submits for order, and caching function to SDU is provided.
RNC sends safe mode command (security command) afterwards, RNC may receive that a lot of non-security mode orders finish the SDU of type, RNC handles according to unencrypted mode these SDU, be that it judges whether to finish type of message for safe mode command, finish message if not safe mode command, RNC is with regard to this SDU of buffer memory, after RNC has received that safe mode command is finished the SDU of message, get the SN sequence number that the cicada uplink UE begins to encrypt, just the up signaling SDU of buffer memory before is decrypted, the SDU that this mechanism can avoid the UE side to send is abandoned by RNC and causes call drop.
Shown in Fig. 5 B, a kind of preferable mode is that before buffer memory SDU, at first the SDU of this up RRC is resolved in trial, if after resolving formation SDU, can discern this RRC type of message and content, with regard to this RRC message of normal process, does not make buffer memory; Otherwise, with regard to the involved data cell of this SDU of buffer memory.That is, the data cell behind the sequence number that begins to encrypt is handled according to manner of decryption, and the data cached unit of sequence number is handled according to non-deciphering before encrypting.When RNC resolves up SDU, according to uplink user data unit unencryption with do not carry out integrity protection, unencryption and carried out integrity protection, encrypt and do not carry out integrity protection or encrypted and carried out integrity protection and resolved.
(3) UE is receiving after safe mode command finishes the RLC ACK of (security command complete) message (expression RNC packed up safe mode command finish whole PDU that security commandcomplete disappears), just send activating set updating and finish message, can avoid up activating set updating to finish message this moment and go out active, its flow process is shown in Fig. 5 C.UE other up RRC message during this period, measurement report message for example all need just send to RNC receiving after safe mode command finishes the RLC ACK message of message, the call drop that the RNC deciphering failure that can avoid like this occurring causes.
Encrypt with the parallel process of soft handover in, RNC sends after the safe mode command security command message, avoids one of in the following way the potential call drop that brings after parallel:
(1) RNC notifies UE in safe mode command security command message, and RNC can allow N the PDU that is encrypted in descending safe mode command security command message come into force afterwards.Shown in Fig. 5 D.
(2) RNC is provided with SDU for submitting in proper order, and UE provides the caching function to SDU.
UE continue the beginning and sent initial direct-sending message after, UE may receive the SDU of a lot of non-security mode orders (security command) type, UE handles according to unencrypted mode these SDU, promptly, judge whether type of message belongs to the type of message of safe mode command, if not Security Mode Command message, this SDU of UE buffer memory, after UE has received safe mode command SDU, get the SN sequence number that the descending RNC of cicada begins to encrypt, just the downlink signaling SDU of buffer memory before is decrypted, the SDU that this mechanism can avoid the RNC side to send is abandoned by UE and causes call drop.
Shown in Fig. 5 E, a kind of preferable mode is that before buffer memory SDU, at first this descending SDU is resolved in trial, if after resolving formation SDU, can discern this RRC type of message and content, with regard to this RRC message of normal process, does not make buffer memory; Otherwise, with regard to the involved data cell of this SDU of buffer memory.That is, the data cell behind the sequence number that begins to encrypt is handled according to manner of decryption, and the data cached unit of sequence number is handled according to non-deciphering before encrypting.Terminal equipment is when attempt resolving descending SDU, according to down user data unit unencryption with do not carry out integrity protection, unencryption and carried out integrity protection, encrypt and do not carry out integrity protection or encrypted and carried out integrity protection and resolved.
Accordingly, the embodiment of the invention provides a kind of radio network controller 40, and this radio network controller also comprises: memory module 400, judge module 410 and control module 420 except comprising the module of finishing existing basic function.
Described memory module 400 is used for the ability information whether storage terminal equipment supports other Radio Resource control procedures outside executed in parallel soft switching process and the soft handover, can judge perhaps whether terminal equipment supports the version information of other Radio Resource control procedures outside executed in parallel soft switching process and the soft handover, this memory module can be the part of existing memory module.
Described judge module 410 and memory module have annexation in logic, be used for carrying out described other RRC processes when receiving the soft handover request, obtain described ability information or version information confirms whether terminal supports executed in parallel described other Radio Resource control procedure and soft switching process from described memory module.
Described control module 420 and judge module have annexation in logic, be used in the judged result of judge module when being, in carrying out described other Radio Resource control procedures, issue activating set updating message with the beginning soft switching process to terminal equipment, perhaps, in the judged result of judge module for not the time, execution soft switching process described other Radio Resource control procedures are finished after.
A kind of preferable mode is that judge module 410 is same module with control module 420, and this module is arranged in existing certain functional module.
Accordingly, the embodiment of the invention provides a kind of terminal equipment 50, comprising: sending module 500, receiver module 510 and Executive Module 520.
Sending module 500 is used for judging whether terminal equipment supports the ability information or the version information of other Radio Resource control (RRC) processes outside executed in parallel soft switching process and the soft handover to be reported to RNC.
Described Executive Module 520 is cancelled after receiving the order of carrying out soft handover or described other RRC processes of the current execution of buffer memory, preferentially carries out soft switching process and continue described other RRC processes after this process is finished; Perhaps, described Executive Module 520 utilizes the free time in described other RRC processes to finish soft switching process after receiving the order of carrying out soft handover.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (21)
1, a kind of method that shortens soft switch-over time delay is characterized in that, comprises the steps:
Receive the measurement report of the request soft handover that terminal equipment reports in radio network controller (RNC) other radio resource control RRC processes outside carrying out soft handover;
Described RNC judges whether terminal equipment supports described other Radio Resource control procedures and soft switching process executed in parallel, if, RNC sends indicating terminal equipment and carries out the order of soft handover, otherwise RNC refuses to walk abreast soft switching process in described other Radio Resource control procedures;
Terminal equipment receive RNC indication carry out the order of soft handover after described other RRC processes of cancellation or the current execution of buffer memory, preferentially carry out soft switching process and described other RRC processes of continuation this process is finished after; Perhaps
Terminal equipment utilizes the free time in described other RRC processes to finish soft switching process receiving after RNC indication carries out the order of soft handover.
2, the method for claim 1 is characterized in that, RNC carries out described judgement according to the ability information of whether supporting described other Radio Resource control procedures and soft handover executed in parallel that terminal equipment reports; Perhaps, RNC carries out described judgement according to the version information that terminal equipment reports.
3, method as claimed in claim 2 is characterized in that, terminal equipment is when RRC sets up process and finishes or RRC sets up in the process or in the handshaking procedure or in the link maintenance process, report described ability information or described version information to RNC.
4, method as claimed in claim 3 is characterized in that, describes whether support each described other Radio Resource control procedures and soft switching process executed in parallel respectively in described ability information; Perhaps
Whether unified the description supports whole described other Radio Resource control procedures and soft switching process executed in parallel in described ability information.
5, the method for claim 1, it is characterized in that, the measurement report of further cache request soft handover described RNC refusal carries out soft switching process in described other Radio Resource control procedures after, and after described other Radio Resource control procedures are finished, carry out soft switching process.
6, as each described method of claim 1 to 5, it is characterized in that described other Radio Resource control procedures comprise that the up process that direct transfers, authentication process, ciphering process, radio bearer RB set up one of process, the descending process that direct transfers, RB reconfiguration course, transmission channel reconfiguration course and physical channel reconfiguration course.
7, method as claimed in claim 6 is characterized in that, terminal equipment reports activating set updating to finish message after finishing soft switching process immediately; Perhaps, terminal equipment is finished the activating set updating that buffer memory need report behind the soft handover and is finished message, and reports the activating set updating of buffer memory to finish message after described other RRC processes are finished.
8, method as claimed in claim 7 is characterized in that, if described other Radio Resource control procedures are ciphering process, then reports activating set updating also to comprise before finishing message at described terminal equipment:
Terminal equipment is finished in the message notice RNC in safe mode command and is encrypted in order and finishes N protocol Data Unit PDU of message and come into effect afterwards, and wherein N is the integer more than or equal to 1.
9, as method as described in the claim 7, it is characterized in that,, then report activating set updating also to comprise before finishing message at described terminal equipment if described other Radio Resource control procedures are ciphering process:
Described terminal equipment carries out data transmit-receive according to new Active Set information;
Then described terminal equipment is after knowing that RNC has correctly received safe mode command and finishes message, and the activating set updating that sends buffer memory to RNC is finished message.
10, method as claimed in claim 9 is characterized in that, this method also comprises:
Described terminal equipment is after the transmission safe mode command is finished message, and other up RRC message delay that needs sent to RNC send, and sends described other RRC message correct the reception after safe mode command is finished message.
11, method as claimed in claim 6 is characterized in that, if described other Radio Resource control procedures are ciphering process, then this method also comprises:
RNC is after sending safe mode command and receive safe mode command and finish during the message, and the uplink user data unit of type is finished in the non-security mode order that buffer memory receives, and after knowing the up sequence number that begins to encrypt, is decrypted.
12, method as claimed in claim 11 is characterized in that, described RNC also comprised finish the uplink user data unit of type in the non-security mode order that buffer memory receives before:
Described non-security mode order is finished the uplink user data unit of type and resolved,, then carry out subsequent treatment if can correctly parse legal type of message and content, otherwise this user data cell of buffer memory.
13, method as claimed in claim 12; it is characterized in that RNC is according to uplink user data unit unencryption and do not carry out integrity protection, unencryption and carried out integrity protection, encrypt and do not carry out integrity protection or encrypted and carried out integrity protection and resolved described user data cell.
14, method as claimed in claim 6 is characterized in that, if when described other Radio Resource control procedures are ciphering process, then RNC also comprised before sending the order that indicating terminal equipment carries out soft handover:
RNC notifies terminal equipment in the Security Mode Command message that sends, N the protocol Data Unit PDU that is encrypted in Security Mode Command message comes into effect afterwards, and wherein N is the integer more than or equal to 1.
15, method as claimed in claim 6 is characterized in that, if described other Radio Resource control procedures are ciphering process, this method also comprises:
Described terminal equipment is after sending initial direct-sending message and during receiving Security Mode Command message, the order of buffer memory non-security mode finish type the down user data unit, after knowing the descending sequence number that begins to encrypt, be decrypted.
16, method as claimed in claim 15 is characterized in that, the down user data unit that type is finished in the order of described terminal equipment buffer memory non-security mode also comprises before:
Described non-security mode order is finished the down user data unit of type and resolved,, then carry out subsequent treatment if can correctly parse legal type of message and content, otherwise this user data cell of buffer memory.
17, method as claimed in claim 16; it is characterized in that terminal equipment is according to down user data unit unencryption and do not carry out integrity protection, unencryption and carried out integrity protection, encrypt and do not carry out integrity protection or encrypted and carried out integrity protection and resolved described user data cell.
18, a kind of radio network controller is characterized in that, comprises
Be used to preserve and judge whether terminal equipment supports the ability information of other Radio Resource control procedures outside executed in parallel soft switching process and the soft handover or the memory module of version information;
When in described other Radio Resource control procedures, receiving the soft handover demand, obtain described ability information or version information from described memory module and confirm whether terminal supports the judge module of executed in parallel soft handover and described other Radio Resource control procedures;
, send indicating terminal equipment and carry out the order of soft handover when being in the judged result of judge module, perhaps, for not the time, refusal carries out the control module of soft switching process in described other Radio Resource control procedures in judged result.
19, radio network controller as claimed in claim 18, it is characterized in that described other Radio Resource control procedures comprise that the up process that direct transfers, authentication process, ciphering process, radio bearer RB set up one of process, the descending process that direct transfers, RB reconfiguration course, transmission channel reconfiguration course and physical channel reconfiguration course.
20, a kind of terminal equipment is characterized in that, comprising:
Can judge whether terminal equipment supports the ability information of other radio resource control RRC processes outside executed in parallel soft switching process and the soft handover or the sending module that version information reports;
Be used to receive the receiver module of order and message;
In carrying out described other Radio Resource control procedures, the Executive Module of soft switching process is carried out in the instruction of the beginning soft handover that receives according to described receiver module.
21, terminal equipment as claimed in claim 20, it is characterized in that, described Executive Module is cancelled after receiving the order of carrying out soft handover or described other RRC processes of the current execution of buffer memory, preferentially carries out soft switching process and continue described other RRC processes after this process is finished; Perhaps
Described Executive Module utilizes the free time in described other RRC processes to finish soft switching process after receiving the order of carrying out soft handover.
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|---|---|---|---|
| CNB2006100035260A CN100428858C (en) | 2006-02-07 | 2006-02-07 | Method and apparatus for shortening soft switch-over time delay |
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| CNB2006100035260A CN100428858C (en) | 2006-02-07 | 2006-02-07 | Method and apparatus for shortening soft switch-over time delay |
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| CN100428858C true CN100428858C (en) | 2008-10-22 |
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| CNB2006100035260A Active CN100428858C (en) | 2006-02-07 | 2006-02-07 | Method and apparatus for shortening soft switch-over time delay |
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| US8473732B2 (en) * | 2008-03-17 | 2013-06-25 | Broadcom Corporation | Method and system for secure block acknowledgment (block ACK) with protected MAC sequence number |
| US9860743B2 (en) | 2015-09-10 | 2018-01-02 | Mediatek Inc. | Apparatuses and methods for avoiding location exposure |
| WO2017143541A1 (en) * | 2016-02-24 | 2017-08-31 | 华为技术有限公司 | Data security protection method and apparatus |
| CN115037707A (en) * | 2021-02-22 | 2022-09-09 | 中国移动通信有限公司研究院 | Transmission jitter control method, user equipment and network side equipment |
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| CN1518255A (en) * | 2003-01-13 | 2004-08-04 | ��������ͨ�ż����о�����˾ | Method for moving UE in RRC connection mole |
| CN1658542A (en) * | 2004-02-17 | 2005-08-24 | 华为技术有限公司 | Method for setting wireless access load |
| WO2005109694A1 (en) * | 2004-05-07 | 2005-11-17 | Lg Electronics Inc. | Performing handover by deferring ip address establishment |
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| CN1518255A (en) * | 2003-01-13 | 2004-08-04 | ��������ͨ�ż����о�����˾ | Method for moving UE in RRC connection mole |
| CN1658542A (en) * | 2004-02-17 | 2005-08-24 | 华为技术有限公司 | Method for setting wireless access load |
| WO2005109694A1 (en) * | 2004-05-07 | 2005-11-17 | Lg Electronics Inc. | Performing handover by deferring ip address establishment |
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