CN100370874C - A method for solving configuration failure of radio resource control process - Google Patents
A method for solving configuration failure of radio resource control process Download PDFInfo
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- CN100370874C CN100370874C CNB2004100709353A CN200410070935A CN100370874C CN 100370874 C CN100370874 C CN 100370874C CN B2004100709353 A CNB2004100709353 A CN B2004100709353A CN 200410070935 A CN200410070935 A CN 200410070935A CN 100370874 C CN100370874 C CN 100370874C
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Abstract
The present invention discloses a method for solving a configuration failure of a radio resource control process, which comprises that after receiving an order of a radio resource control process carrying a safety guarantee cell, a user facility judges if the reconfigured cell value of the corresponding condition variable thereof is true. If the reconfigured cell value of the corresponding condition variable thereof is true, then the user facility buffers the currently received information of the order of the radio resource control process, waits for the finish of the last radio resource control process, and after the finish of the last radio resource control process, processes the buffered information of the order of the radio resource control process. If the reconfigured cell value of the corresponding condition variable thereof is not true, the user facility processes the currently received information of the order of the radio resource control directly. The method of the present invention can be used for solving the problem that in the multiple radio resource control processes carrying the same safety guarantee cell, the configuration of the following processes is failed because the current process is not finished. The utility model has the advantages of development of the access rate of service, improvement of the stability of a system, and enhancement of the compatibility of a 3GPP agreement.
Description
Technical field
The present invention relates to Radio Resource control (RRC) process of Wideband Code Division Multiple Access (WCDMA) (WCDMA) system, specially refer to a kind of method of the RRC of solution process configuration failure.
Background technology
The WCDMA system is made up of core net (CN), universal mobile telecommunications system terrestrial access network (UTRAN) and subscriber equipment (UE).The major function of UTRAN is functions such as the management of access control, mobile management and Radio Resource of realization system and control.UTRAN comprises that one or more is connected to the RNS (RNS) of CN by the Iu interface, and a RNS can comprise a radio network controller (RNC) and one or more base station node B.
Uu Interface is the Uu interface, is also referred to as wave point, and this interface uses Radio Transmission Technology that subscriber equipment is linked into system's fixed network part.The protocol stack of Uu interface comprises three layers: physical (L1), data link layer (L2) and network layer (L3).The Uu protocol stack of the interface is divided into two planes: control plane and user plane.The main processing controls signaling of control plane, user plane is processes user data then.On control plane, data link layer comprises two sublayers: medium access control (MAC) sublayer and Radio Link control (RLC) sublayer; Network layer comprises Radio Resource control (RRC) layer.
Wherein, rrc layer is controlled wireless resource allocation and is responsible for sending and receiving relevant signaling.Control signaling capability between handled UE of rrc layer and the UTRAN is a lot, has stipulated a lot of RRC message flows in 3GPP agreement 3GPP TS 25.331, is also referred to as the RRC process.
In the RRC process, UE and UTRAN operate accordingly according to the cell (IE:Information Element) that carries in the RRC message that sends and receive.In agreement 3GPP TS25.331, also define a plurality of IE, and defined the corresponding operating that UE and UTRAN send or need carry out when receiving these IE.Wherein, this protocol definition carry out the IE of encryption configuration, be encryption mode information (Ciphering Mode Info), UE, RNC or CN will carry out encryption configuration according to the information among this IE, and carry out operation such as the startup of carrying of UE, RNC two side signalling links and user face data/restart encryption; In addition; this agreement has also defined the IE that carries out the integrity protection configuration; be integrity protection pattern information (Integrity Protection Mode Info); UE, RNC or CN will carry out the integrity protection configuration according to the information among this IE, and carry out UE, RNC both sides up link and operations such as downlink signaling startup integrity protection or modification integrity protection.
Stipulated that in agreement 3GPP TS 25.331 the RRC message that many RRC processes are used can comprise above-mentioned two IE, promptly comprise IE " Ciphering Mode Info ", perhaps comprise IE " IntegrityProtection Mode Info ", or comprise IE " Ciphering Mode Info " and IE " Integrity Protection Mode Info " simultaneously, for example: radio bearer set up message, the release message of radio bearer, radio bearer reconfigure message, transmission channel reconfigure message, physical channel reconfigure message, Security Mode Command message, the cell update acknowledgement message, universal mobile telecommunications system terrestrial access network Acceditation Area upgrades the mobile message message of acknowledgement message and universal mobile telecommunications system terrestrial access network.
Be the signaling process that example illustrates a subnormal RRC process with the safe mode control procedure below.
Fig. 1 has shown the once normal safe mode control procedure of agreement 3GPP TS 25.331 regulations.Need to prove that Fig. 1 has only shown the flow process between UE and the RNC, do not show the flow process between RNC and the CN.
Wherein, 4 of the UE-L3 of Fig. 1, UE-L2, RNC-L3 and RNC-L2 square frames are represented the L3 layer of UE side and the L3 layer and the L2 layer entity of L2 layer and RNC side respectively.As shown in Figure 1, described safe mode control procedure comprises following steps:
Step 101:RNC-L3 sends Security Mode Command message to RNC-L2, wherein can comprise IE " Ciphering Mode Info " or IE " Integrity Protection Mode Info " or the two all comprises;
Step 102:RNC-L2 sends to UE-L2 with the protocol Data Unit PDU of Security Mode Command message;
Step 103:UE-L2 is uploaded to UE-L3 with Security Mode Command message after correctly receiving the PDU of Security Mode Command message, and RNC-L2 is given in the response (ACK) of returning correct reception safe mode command PDU;
The response of the correct reception safe mode command PDU that step 104:RNC-L2 will receive is uploaded to RNC-L3;
Step 105:UE-L3 carries out corresponding operation according to the IE that comprises in the Security Mode Command message that receives, and returns safe mode and finish message to UE-L2;
Wherein, if comprise IE " Ciphering Mode Info " in the Security Mode Command message, UE will carry out corresponding encryption configuration, simultaneously the Boolean type cell of encrypted state (CIPHERING_STATUS) variable of UE self be reconfigured (Reconfiguration) and be set to very (TRUE);
If comprise IE " Integrity Protection Mode Info " in the Security Mode Command message, UE carries out corresponding integrity protection configuration, and the Boolean type cell Reconfiguration of integrity protection information (INTEGRITY_PROTECTION_INFO) variable of UE self is set to TRUE simultaneously;
Step 106:UE-L2 finishes message PDU with safe mode and sends to RNC-L2;
Step 107:RNC-L2 correctly receives after safe mode finishes message PDU, safe mode is finished message upload to RNC-L3, and return correct reception safe mode and finish the response of message PDU and give UE-L2;
The response that the correct reception safe mode that step 108:UE-L2 will receive is finished message PDU is uploaded to UE-L3;
In this step, when UE-L3 receives after safe mode finishes message PDU and correctly receive response, the IE that UE-L3 comprises according to Security Mode Command message in the above-mentioned steps 105, the variable CIPHERING_STATUS of UE that will be corresponding with this IE or the cell Reconfiguration of INTEGRITY_PROTECTION_INFO are re-set as vacation (FALSE).
For example, if comprise IE " Ciphering Mode Info " in the Security Mode Command message, then UE is re-set as FALSE with the Boolean type cell Reconfiguration of the CIPHERING_STATUS variable of self; If comprise IE " Integrity Protection ModeInfo " in the Security Mode Command message, then UE is re-set as FALSE with the Boolean type cell Reconfiguration of the INTEGRITY_PROTECTION_INFO variable of self.
Through above-mentioned steps 101～108, once normal safe mode control procedure is finished.
Other of agreement 3GPP TS 25.331 regulations can comprise RRC process and the above-mentioned safe mode control procedure basically identical of IE " Ciphering Mode Info " or IE " Integrity Protection Mode Info ", therefore, just be not described in detail in this manual.
As mentioned above, Fig. 1 has only shown once normal safe mode control procedure.But, in the operation of reality, may occur double or repeatedly have the RRC process of above-mentioned two IE, these two continuous RRC processes may come from same CN, also may be from different CN.In this case, appear at UE-L3 possibly and receive for the first time the RRC process and finish message PDU and correctly receive before the response, UE-L3 just receives the situation of the command messages of RRC process for the second time.Again because twice RRC process may have identical IE, promptly all have IE " Ciphering Mode Info " or IE " Integrity Protection Mode Info ", therefore, when UE-L3 receives RRC procedure command second time message, because UE-L3 does not receive as yet that for the first time the RRC process is finished message PDU and correctly receives response, the variable INTEGRITY_PROTECTION_INFO of UE or the cell Reconfiguration of CIPHERING_STATUS still are true, according to the regulation of agreement 3GPP TS25.331, this will cause UE to the RRC process processing of the failing second time.
The command messages that above-mentioned second time of RRC process occurs prior to the first time RRC process finish message PDU and correctly receive the reason that response arrives the UE-L3 situation and have a lot.The wherein a kind of RRC process first time that may be exactly can't correctly receive RNC-L2 and sent owing to the UE-L2 that reason caused of transmission link is finished message PDU and is correctly received response, the RRC process is finished message PDU and is correctly received response though RNC-L2 can retransfer for the first time subsequently, is later than RRC procedure command message arrival UE-L3 for the second time probably; Another kind may be because RRC process RRC process for the first time and then for the second time, the command messages that causes RNC-L2 itself to send RRC process for the second time will be finished message PDU correctly to receive the response time Zao than sending for the first time the RRC process, therefore, the command messages of RRC process can arrive UE-L3 earlier for the second time.In the applied environment of reality, above-mentioned latter event more likely occurs.
Be that example describes above-mentioned situation in detail still below with the safe mode control procedure.In this example, the IE that supposes in the Security Mode Command message to be comprised is IE " Ciphering Mode Info ", and RNC itself sends for the second time Security Mode Command message and will finish message PDU and correctly receive response early than sending for the first time the RRC process.
Fig. 2 has shown the double safe mode control procedure that causes the safe mode configuration failure second time.As shown in Figure 2, described safe mode control procedure comprises following steps:
Step 201:RNC-L3 sends for the first time, and Security Mode Command message arrives RNC-L2, wherein comprise IE " Ciphering Mode Info ", RNC-L3 sends to UE-L2 with this Security Mode Command message, UE-L2 correctly receives after the PDU of the Security Mode Command message first time, be uploaded to UE-L3, and return correct reception for the first time Security Mode Command message PDU correctly receive response and give RNC-L2, RNC-L2 is uploaded to RNC-L3 with this response message;
Step 202:UE carries out corresponding encryption configuration, and the Boolean type cell Reconfiguration of the CIPHERING_STATUS variable of UE self is set to TRUE simultaneously, and returns for the first time safe mode and finish message and give UE-L2; The UE-L2 general safe mode first time is finished message and is sent to RNC;
Step 203:RNC-L3 sends for the second time, and Security Mode Command message arrives RNC-L2, wherein also comprise IE " Ciphering Mode Info ", RNC-L2 sends to UE-L2 with this Security Mode Command message, UE-L2 correctly receives after the PDU of the Security Mode Command message second time, be uploaded to UE-L3, and return for the second time Security Mode Command message PDU and correctly receive response and give RNC-L2, RNC-L2 is uploaded to RNC-L3 with this response message;
Step 204:UE-L3 is before receiving the Security Mode Command message second time, do not receive the correct response that safe mode is for the first time finished message PDU that receives, therefore, the Boolean type cell Reconfiguration of the CIPHERING_STATUS variable of UE self still is TRUE.According to agreement regulation, UE will be to processings of failing of the safe mode command second time, and thus, UE-L3 transmission safe mode failed message is to opposite end RNC;
Step 205:RNC-L2 returns the correct safe mode for the first time of receiving and finishes the response of message PDU and give UE-L2, and UE-L2 is uploaded to UE-L3 with this message, and the safe mode control procedure finishes for the first time.
From safety mode process shown in Figure 2 as can be seen, the main cause that causes above-mentioned second time of safe mode control procedure configuration failure is when safe mode command arrives UE-L3 for the second time, UE does not receive the correct response that safe mode is for the first time finished message PDU that receives as yet, and promptly the Boolean type cell Reconfiguration of the CIPHERING_STATUS variable of UE still is TRUE.Need to prove that flow process shown in Figure 2 is only described a kind of possibility that causes the problems referred to above, in the application of reality, some message is not necessarily necessary, and each message sequence is not necessarily fully identical with Fig. 2.
Equally, if twice safe mode control procedure all has IE " Integrity Protection ModeInfo ", because in primary safe mode control procedure, UE will be set to TRUE by the cell Reconfiguration among the UE UE own variable INTEGRITY_PROTECTION_INFO after receiving the safe mode command first time, the situation that above-mentioned second time of safe mode control procedure configuration failure therefore, also can occur.
In addition, owing to can comprise above-mentioned two kinds of IE in the message of agreement 3GPP TS 25.331 defined a plurality of RRC processes, therefore, as long as before and after twice continuous RRC process all include IE " Ciphering Mode Info " or comprise IE " Integrity Protection Mode Info " or comprise IE " Ciphering Mode Info " simultaneously and IE " Integrity Protection Mode Info ", just the situation of above-mentioned second time of RRC process configuration failure also can appear.
Because in the applied environment of reality, the situation that is similar to the above-mentioned double RRC of carrying out process is recurrent, described double RRC process may come from same CN also may be from different CN.If all comprising IE " CipheringMode Info " in the command messages of double RRC process or all comprising IE " Integrity Protection Mode Info " just to cause follow-up business can't correctly set up or cause signaling to connect unusual release, therefore, in order to improve the call completion rate, the stability of promotion system need take a kind of method to solve the above problems.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of method of the RRC of solution process configuration failure, can solve the problem of the RRC process configuration failure that causes by above-mentioned special circumstances effectively, improve the call completion rate, promote the stability of system.
The method of the invention is: subscriber equipment is after receiving the Radio Resource control procedure command messages that carries encryption mode information cell and/or integrity protection pattern information cell, judge in this subscriber equipment with the entrained encryption mode information cell and/or the cell value that reconfigures of the corresponding state variable of integrity protection pattern information cell whether be true, if, then subscriber equipment is with the current Radio Resource control procedure command messages buffer memory that receives, wait for that last Radio Resource control procedure finishes, and after last once Radio Resource control procedure finishes, handle the Radio Resource control procedure command messages of buffer memory; Otherwise subscriber equipment is directly handled the current Radio Resource control command message that receives.
In addition, subscriber equipment can start a timer after with described Radio Resource control procedure command messages buffer memory, if before described timer expiry, last Radio Resource control procedure finishes, and then handles the Radio Resource control procedure order of buffer memory; Otherwise subscriber equipment will carry out abnormality processing to the Radio Resource control procedure order of buffer memory.
And the control procedure that described Radio Resource control procedure is a radio bearer or for the process that reconfigures of transmission channel or for the process that reconfigures of physical channel or for the safe mode control procedure.
State variable of the present invention is encrypted state variable or integrity protection information variable.
In method of the present invention, above-mentioned Radio Resource control procedure finishes to be specially: subscriber equipment receives that this Radio Resource control procedure of correct reception that radio network controller is sent finishes the response of message.
In addition, in the method for the invention, the current radio resource control information of receiving of above-mentioned buffer memory carries out in the network layer of subscriber equipment.
This shows, use method of the present invention, receive earlier at above-mentioned UE under the situation of RRC procedure command second time message, UE by buffer to receive earlier the second time RRC process the command messages buffer memory regular hour, the RRC process first time of wait is simultaneously finished message PDU and is correctly received response, can guarantee substantially that UE receiving for the first time after the RRC process finishes message PDU and correctly receive response, after promptly the RRC process finishes for the first time, handles RRC process for the second time again.Therefore, use method of the present invention and can solve the problem of RRC process configuration failure for the second time substantially, improved the call completion rate simultaneously, promoted the stability of system, also strengthened the compatibility of 3GPP agreement.
Description of drawings
Fig. 1 is normal safe mode control procedure once;
Fig. 2 causes the double safe mode control procedure of safe mode configuration failure for the second time;
Fig. 3 is the safe mode control procedure of double configuration successful in a preferred embodiment of the invention;
Fig. 4 is the RRC process of double configuration successful in the another preferred embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the method for the invention is described in further detail.
Fig. 3 is the safe mode control procedure of double configuration successful in a preferred embodiment of the invention.In the present embodiment, all comprise IE " Ciphering ModeInfo " in the double Security Mode Command message, and the time of the UE of Security Mode Command message arrival for the second time may be finished the time that message PDU correctly receives response arrival UE early than the safe mode first time.
As shown in Figure 3, double safe mode control procedure of the present invention comprises following steps:
Step 301:RNC-L3 sends for the first time, and Security Mode Command message arrives RNC-L2, wherein comprise IE " Ciphering Mode Info ", RNC-L3 sends to UE-L2 with this Security Mode Command message, UE-L2 correctly receives after the PDU of the Security Mode Command message first time, be uploaded to UE-L3, and return for the first time Security Mode Command message PDU and correctly receive response and give RNC-L2, RNC-L2 is uploaded to RNC-L3 with this response message;
Step 302:UE carries out corresponding encryption configuration, and the Boolean type cell Reconfiguration of UE self CIPHERING_STATUS variable is set to TRUE simultaneously, and returns for the first time safe mode and finish message and give UE-L2; The UE-L2 general safe mode first time is finished message and is sent to RNC;
Step 303:RNC-L3 sends for the second time, and Security Mode Command message arrives RNC-L2, wherein also comprise IE " Ciphering Mode Info ", RNC-L2 sends to UE-L2 with this Security Mode Command message, UE-L2 correctly receives after the PDU of the Security Mode Command message second time, be uploaded to UE-L3, and return for the second time Security Mode Command message PDU and correctly receive response and give RNC-L2, RNC-L2 is uploaded to RNC-L3 with this response message;
Step 304:UE-L3 receives for the second time after the Security Mode Command message, judges whether at first to have received that the safe mode first time that UE-L2 uploads finishes message PDU and correctly receive response,
If receive, then the safe mode control procedure finishes for the first time, and UE can handle safe mode command for the second time, and its handling process does not show among Fig. 3 with the safe mode control procedure is identical for the first time;
Correctly do not receive response if receive as yet that for the first time safe mode is finished message PDU, then UE wouldn't handle safe mode command for the second time, and the safe mode command buffer memory gets up for the second time, and the wait safe mode first time is finished message PDU and correctly received response, and execution in step 305 then;
Step 305:UE-L2 receives after the safe mode first time that RNC-L2 sends finishes the correct reception response of information PDU, is uploaded to UE-L3; The value of the Boolean type cell Reconfiguration of UE-L3 UE self CIPHERING_STATUS variable is set to FALSE, and the safe mode control procedure finishes for the first time;
Step 306:UE-L3 handles safe mode control procedure for the second time, UE carries out corresponding encryption configuration, Boolean type cell Reconfiguration with UE self CIPHERING_STATUS variable is re-set as TRUE simultaneously, and returns for the second time safe mode and finish message and give UE-L2; The UE-L2 general safe mode second time is finished message and is sent to RNC.
Follow-up process is identical with normal safe mode control procedure, does not show among Fig. 3 that the present invention has not been described in detail yet.
Need to prove, in above-mentioned steps 304, UE-L3 is in the buffer memory safe mode command second time, can start a timer, this timer is set buffer memory and is waited for that safe mode is finished the time that message PDU correctly receives response for the first time, and length of timer can be provided with flexibly according to actual conditions, if receiving before timer expiry that safe mode is finished message PDU for the first time correctly receives response, then carries out above-mentioned step 305; If up to timer expiry, do not receive yet that for the first time safe mode is finished message PDU correctly to receive response, UE will carry out abnormality processing, and the flow process of relevant abnormality processing does not show in Fig. 3 yet.The flow process of this abnormality processing has been carried out detailed regulation in agreement 3GPP TS 25.331, therefore, just no longer narrated in the present invention.
Need to prove that in addition in step 304, caching of the present invention is not limited to carry out at UE-L3, also can indicate other entities of UE-L2 or UE to carry out by UE-L3.
And wait method of the present invention is not limited to the method for above-mentioned startup timer, can also adopt other any methods that can delay time and wait for, and can not exceed the spirit and scope of the present invention.
By the method for embodiment 1 as can be seen, though the time of the UE of Security Mode Command message arrival for the second time may be finished message PDU early than the safe mode first time and correctly be received the time that response arrives UE, but by adding buffer at UE, for the second time the Security Mode Command message buffer memory regular hour, can guarantee normally carrying out of twice safe mode control procedure substantially.
Embodiment 2.
In the present embodiment, all comprise IE " IntegrityProtection Mode Info " in the double Security Mode Command message, and the time of the UE of Security Mode Command message arrival for the second time may be finished the time that message PDU correctly receives response arrival UE early than the safe mode first time.
The handling process of present embodiment and embodiment 1 described step 301～306 are basic identical.Difference is:
1, in the present embodiment, UE need revise cell Reconfiguration among the variable INTEGRITY_PROTECTION_INFO in step 302, step 305 and the step 306;
2, in the present embodiment, in the step 302 and 306, UE-L3 will carry out the integrity protection configuration after receiving Security Mode Command message.
By the method for present embodiment, also can guarantee normally carrying out of twice safe mode control procedure substantially.
Embodiment 3.
In the present embodiment, can comprise IE " CipheringMode Info " in the double Security Mode Command message or comprise IE " Integrity Protection Mode Info " or comprise IE " Ciphering Mode Info " simultaneously and IE " Integrity Protection Mode Info ", and the IE that twice Security Mode Command message in front and back comprised there is common factor.
As mentioned above, present embodiment can comprise following 5 kinds of situations: in double safe mode control procedure, comprise IE " Ciphering Mode Info " in the primary Security Mode Command message, and comprise IE " Ciphering Mode Info " and IE " Integrity Protection Mode Info " in secondary Security Mode Command message simultaneously; Perhaps conversely; Perhaps comprise IE " Integrity Protection Mode Info " in the Security Mode Command message, and comprise IE " Ciphering Mode Info " and IE " Integrity Protection ModeInfo " in secondary Security Mode Command message simultaneously in the first time; Perhaps conversely; Or double Security Mode Command message all comprises IE " Ciphering Mode Info " and IE " Integrity Protection Mode Info " simultaneously.
And in the present embodiment, the time of the UE of Security Mode Command message arrival for the second time may be finished message PDU early than the safe mode first time and correctly be received the time that response arrives UE.
The handling process of present embodiment and embodiment 1 described handling process are basic identical.Difference only is: in step 302, step 305 and step 306, UE will operate accordingly according to IE entrained in the Security Mode Command message, revises the cell value of self relevant variable.
Owing to can comprise IE " Ciphering Mode Info " or IE " Integrity Protection Mode Info " in the RRC message that the RRC process that agreement 3GPP TS 25.331 regulations are a lot of is used, and UE and RNC all are similar to the processing procedure that comprises these two kinds of IE, therefore, method of the present invention is applicable to that also other comprise the RRC message of IE " Ciphering Mode Info " or IE " IntegrityProtection Mode Info ", for example, radio bearer sets up message, the release message of radio bearer, radio bearer reconfigure message, transmission channel reconfigure message, physical channel reconfigure message, Security Mode Command message, the cell update acknowledgement message, universal mobile telecommunications system terrestrial access network Acceditation Area upgrades the mobile message message of acknowledgement message and universal mobile telecommunications system terrestrial access network.
Present embodiment just with the first time RRC process set up process for the radio bearer that comprises IE " Ciphering Mode Info ", and the RRC process is that example describes for the safe mode control procedure that comprises IE " Ciphering Mode Info " for the second time.And in the present embodiment, the time of Security Mode Command message arrival UE may be set up early than radio bearer and be finished the time that message PDU correctly receives response arrival UE.
Fig. 4 is the RRC process of double configuration successful in the another preferred embodiment of the present invention.As shown in Figure 4, embodiment 4 may further comprise the steps:
Step 401:RNC-L3 sends radio bearer and sets up message to RNC-L2, wherein comprise IE " Ciphering Mode Info ", RNC-L3 sets up message with this radio bearer and sends to UE-L2, UE-L2 correctly receives radio bearer and sets up after the PDU of message, be uploaded to UE-L3, and return radio bearer and set up message PDU and correctly receive response and give RNC-L2, RNC-L2 is uploaded to RNC-L3 with this response message;
Step 402:UE carries out corresponding encryption configuration, and other set up the relevant operation of message with radio bearer, the Boolean type cell Reconfiguration of UE self CIPHERING_STATUS variable is set to TRUE simultaneously, and returns radio bearer foundation and finish message to UE-L2; UE-L2 finishes message with radio bearer foundation and sends to RNC;
Step 403:RNC-L3 sends Security Mode Command message to RNC-L2, wherein also comprise IE " Ciphering Mode Info ", RNC-L2 sends to UE-L2 with this Security Mode Command message, UE-L2 correctly receives after the PDU of Security Mode Command message, be uploaded to UE-L3, and return Security Mode Command message PDU and correctly receive response and give RNC-L2, RNC-L2 is uploaded to RNC-L3 with this response message;
Step 404:UE-L3 receives after the Security Mode Command message, judges whether at first to receive that radio bearer that UE-L2 uploads is set up finishes message PDU and correctly receive response,
If receive, then radio bearer is set up flow process and is finished, and UE can handle safe mode command, and its handling process is identical with safe mode control procedure of the prior art, does not show among Fig. 4;
Do not finish message PDU and correctly receive response if receive radio bearer foundation as yet, then UE wouldn't handle safe mode command, and the safe mode command buffer memory is got up, and the foundation of wait radio bearer is finished message PDU and correctly received response;
Step 405:UE-L2 receives radio bearer that RNC-L2 sends and sets up to finish and be uploaded to UE-L3 after message PDU correctly receives response; The Boolean type cell Reconfiguration of the CIPHERING_STATUS variable of UE-L3 UE self is set to FALSE, and radio bearer is set up flow process and finished;
Step 406:UE-L3 handles the safe mode control procedure, UE carries out corresponding encryption configuration, and other associative operations, value with the Boolean type cell Reconfiguration of UE self CIPHERING_STATUS variable is changed to TRUE again simultaneously, and returns safe mode and finish message and give UE-L2; UE-L2 finishes message with safe mode and sends to RNC.
Follow-up process is identical with normal safe mode control procedure, does not show among Fig. 4 that the present invention has not been described in detail yet.
Equally, in above-mentioned steps 404, UE-L3 is in the buffer memory safe mode command, can start a timer, buffer memory set by this timer and the foundation of wait radio bearer is finished the time that message PDU correctly receives response, finish message PDU and correctly receive response if before timer expiry, receive radio bearer foundation, then carry out above-mentioned step 405; If up to timer expiry, do not receive yet that radio bearer is set up to finish message PDU and correctly receive response that UE will carry out abnormality processing.
If above-mentioned radio bearer is set up process and the safe mode control procedure all comprises IE " IntegrityProtection Mode Info ", then UE need revise cell Reconfiguration among the variable INTEGRITY_PROTECTION_INFO in step 402, step 405 and step 406; And in step 402 and 406, UE-L3 will carry out the integrity protection configuration after receiving Security Mode Command message.
This shows,, also can guarantee to have for twice normally the carrying out of RRC flow process of identical IE substantially by the method for present embodiment.
Need to prove, method of the present invention is equally applicable to above-mentioned radio bearer and sets up and comprise IE " Ciphering Mode Info " in the command messages of process and safe mode control procedure or comprise IE " Integrity Protection Mode Info " or comprise IE " Ciphering Mode Info " simultaneously and IE " Integrity Protection Mode Info ", and twice RRC procedure command message IE of being comprised in front and back has the situation of common factor.In this case, the handling process of UE and RNC and embodiment 4 described handling processes are basic identical.Difference only is: in step 402, step 405 and step 406, UE will operate accordingly according to entrained IE in the RRC procedure command message, revises the cell value of relevant variable.
Need to prove in addition, method of the present invention also is not limited only to the RRC process described in the foregoing description, but be applicable to that all doublely all comprise IE " Ciphering Mode Info " or IE " Integrity Protection Mode Info " or comprise IE " Ciphering Mode Info " simultaneously and the RRC process of IE " Integrity Protection Mode Info ", and the handling process of UE and RNC and the method described in the embodiment are basic identical.
As can be seen from the above embodiments, at the double IE " Ciphering Mode Info " that all comprises, perhaps IE " Integrity Protection Mode Info ", or comprise simultaneously in the RRC process of IE " Ciphering ModeInfo " and IE " Integrity Protection Mode Info ", using method of the present invention can solve basically owing to the command messages of the RRC process for the second time problem prior to the RRC process configuration failure first time, the RRC process finished that message PDU receives correctly that response arrives that UE-L3 causes second time, guarantee to have for twice normally the carrying out of RRC flow process of identical IE, therefore, improved the call completion rate, promote the stability of system, also strengthened the compatibility of 3GPP agreement.
Be easy to obtain, of the present invention at UE side adding buffer, the method for the first RRC procedure command message buffering certain hour that arrives also is applicable to the RRC process of continuous several times.Promptly using method of the present invention also can solve in continuous several times RRC process, owing to follow-up RRC procedure command message is finished message prior to front RRC process and is correctly received response and arrive that UE causes, the problem of follow-up RRC process configuration failure, and the handling process basically identical of its handling process and the foregoing description.
In addition, the front and back order of each message shown in the message flow that the foregoing description is described and message has only shown a kind of possibility that causes occurring above-mentioned RRC process configuration failure, method of the present invention is not limited to the front and back order of the message described in the foregoing description and each message, in the application of reality, can omit, replace wherein some message, and the front and back of each message orders also can relative variability, and can not exceed the spirit and scope of the present invention.
More than lift preferred embodiment; the purpose, technical solutions and advantages of the present invention have been carried out further detailed description; institute is understood that; the above is the preferred embodiments of the present invention; not in order to show the present invention; within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. method that solves Radio Resource control procedure configuration failure, it is characterized in that, subscriber equipment is after receiving the radio resource control information that carries encryption mode information cell and/or integrity protection pattern information cell, judge in this subscriber equipment with the entrained encryption mode information cell and/or the cell value that reconfigures of the corresponding state variable of integrity protection pattern information cell whether be true, if, then subscriber equipment is with the current radio resource control information buffer memory that receives, wait for that last Radio Resource control procedure finishes, and after last once Radio Resource control procedure finishes, handle the radio resource control information of buffer memory; Otherwise subscriber equipment is directly handled the current radio resource control information that receives.
2. the method for claim 1 is characterized in that, subscriber equipment is after with described radio resource control information buffer memory, start a timer, if before described timer expiry, last Radio Resource control procedure finishes, and then handles the radio resource control information of buffer memory; Otherwise subscriber equipment will carry out abnormality processing to the radio resource control information of buffer memory.
3. the method for claim 1, it is characterized in that described radio resource control information is setting up message or being the release message of radio bearer or reconfiguring message or reconfiguring message or reconfiguring message or upgrade acknowledgement message or be the mobile message message of universal mobile telecommunications system terrestrial access network for Security Mode Command message or for the cell update acknowledgement message or for universal mobile telecommunications system terrestrial access network Acceditation Area for physical channel for transmission channel for radio bearer of radio bearer.
4. the method for claim 1 is characterized in that, described state variable is encrypted state variable or integrity protection information variable.
5. the method for claim 1 is characterized in that, described Radio Resource control procedure finishes to be specially: subscriber equipment receives that this Radio Resource control procedure of correct reception that radio network controller is sent finishes the response of message.
6. the method for claim 1 is characterized in that, the current radio resource control information of receiving of described buffer memory carries out in the network layer of subscriber equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNB2004100709353A CN100370874C (en) | 2004-07-16 | 2004-07-16 | A method for solving configuration failure of radio resource control process |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2004100709353A CN100370874C (en) | 2004-07-16 | 2004-07-16 | A method for solving configuration failure of radio resource control process |
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| CN1722902A CN1722902A (en) | 2006-01-18 |
| CN100370874C true CN100370874C (en) | 2008-02-20 |
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| CNB2004100709353A Expired - Fee Related CN100370874C (en) | 2004-07-16 | 2004-07-16 | A method for solving configuration failure of radio resource control process |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US8996005B2 (en) * | 2009-01-23 | 2015-03-31 | Htc Corporation | Method of handling cell change and related apparatus |
| CN112672355A (en) * | 2019-09-29 | 2021-04-16 | RealMe重庆移动通信有限公司 | Method for establishing security mode, UE and computer storage medium |
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|---|---|---|---|---|
| WO2000054456A1 (en) * | 1999-03-08 | 2000-09-14 | Nokia Mobile Phones Ltd. | Method of ciphering data transmission in a radio system |
| CN1350761A (en) * | 1999-05-11 | 2002-05-22 | 诺基亚网络有限公司 | Integrity protection method for radio network signaling |
| EP1233636A2 (en) * | 2001-02-16 | 2002-08-21 | Microsoft Corporation | System and method for over the air configuration security |
| EP1248487A2 (en) * | 2001-04-07 | 2002-10-09 | Lg Electronics Inc. | Method for setting up radio bearer in mobile communication system |
| CN1426185A (en) * | 2001-12-13 | 2003-06-25 | 华为技术有限公司 | Method for realizing secrete communication by autonomously selecting enciphered algorithm |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000054456A1 (en) * | 1999-03-08 | 2000-09-14 | Nokia Mobile Phones Ltd. | Method of ciphering data transmission in a radio system |
| CN1350761A (en) * | 1999-05-11 | 2002-05-22 | 诺基亚网络有限公司 | Integrity protection method for radio network signaling |
| EP1233636A2 (en) * | 2001-02-16 | 2002-08-21 | Microsoft Corporation | System and method for over the air configuration security |
| EP1248487A2 (en) * | 2001-04-07 | 2002-10-09 | Lg Electronics Inc. | Method for setting up radio bearer in mobile communication system |
| CN1426185A (en) * | 2001-12-13 | 2003-06-25 | 华为技术有限公司 | Method for realizing secrete communication by autonomously selecting enciphered algorithm |
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| CN1722902A (en) | 2006-01-18 |
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