CN101583170B - Processing method for cell reselection in establishment process of RRC connection and device - Google Patents

Processing method for cell reselection in establishment process of RRC connection and device Download PDF

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Publication number
CN101583170B
CN101583170B CN2009101479756A CN200910147975A CN101583170B CN 101583170 B CN101583170 B CN 101583170B CN 2009101479756 A CN2009101479756 A CN 2009101479756A CN 200910147975 A CN200910147975 A CN 200910147975A CN 101583170 B CN101583170 B CN 101583170B
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China
Prior art keywords
gravity treatment
sub
user terminal
rrc
district
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CN2009101479756A
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Chinese (zh)
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CN101583170A (en
Inventor
汤月宝
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中兴通讯股份有限公司
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/08Reselecting an access point
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/20Manipulation of established connections
    • H04W76/27Transitions between radio resource control [RRC] states

Abstract

The invention discloses a processing method for cell reselection in the establishment process of RRC connection and a device. The processing method comprises the following steps: when cell reselectionoccurs in the establishment process of RRC connection of a user terminal and UTRAN, an access layer of the user terminal notifies a non-access layer of the cell reselection in the establishment proce ss of RRC connection; the non-access layer caches the connection establishing request, detects whether cell information reported by the access layer is received in real time, and judges whether the process of connection management of mobile management (MM) and the special process of MM conflict after the reported cell information is received, if so, the special process of MM is initiated, and after the special process is ended, the cached connection establishing request is reinitiated or a call is waited to be reinitiated by a network side. The method solves the problem that in the prior art, cell reselection in the establishment process of RRC connection causes conflict between the connection management of MM and the special process of MM so as to cause call failure.

Description

The processing method and the device of sub-district gravity treatment in the process are set up in a kind of RRC connection

Technical field

The present invention relates to communication technical field, relate in particular to a kind of RRC connection and set up the processing method and the device of sub-district gravity treatment in the process.

Background technology

At user terminal and UTRAN (Universal Terrestrial Radio Access Network, whole world terrestrial radio access network) carries out RRC (Radio Resource Control between, radio resource control) connection is set up in the process, the RRC connection is set up process by UE (User Equipment, user terminal) upper strata Non-Access Stratum is initiated, and makes a call as response beep-page message or UE.Concrete, above-mentioned RRC connection is set up process as shown in Figure 1, set up in the process in the RRC connection, UE is at up CCCH (CommonControl Channel, Common Control Channel) goes up to RRC connection request message of UTRAN transmission, sign (TMSI (the Temporary Mobile Subscriber Identity that comprises UE in the message, Temporary Mobile Subscriber Identity), PTMSI, IMSI (International Mobile Subscriber Identity, IMSI International Mobile Subscriber Identity), IMEI (International Mobile Equipment Identity, International Mobile Station Equipment Identification)) and optionally metrical information.As if allowing UE to insert behind the UTRAN process access control algorithm, then on descending CCCH, send the RRC connection and set up message, and in message, indicate UE the state that enters.The RRC that UE receives expectation connect set up message after, will assemble the RRC connection setup complete message, and on up DCCH (Dedicated Control Channel, Dedicated Control Channel), send it to UTRAN.If the RRC connection setup complete message sends successfully, then merit is built up in the RRC connection.

Yet, set up in the process in the RRC connection, owing to reasons such as network congestion, signal quality variation, may cause setting up the sub-district gravity treatment of generation network side appointment in the process or the sub-district gravity treatment of measurement triggering in the RRC connection, this just might be because lane place (LA, Location Area) route district (RA, Routing Area) changes, cause MM (Mobility Management, mobile management) connection management process and MM special process to clash, thereby cause call failure.Wherein, MM connection management process and MM special process clash and are meant that RRC is connected the situation of sending location area updating or Routing Area Update request after setting up successfully again.According to agreement, the RRC connection is set up following several reuse adoption process may be taken place in the process.(1) owing to the signal quality variation, thus the sub-district gravity treatment of generation measurement triggering; (2) RRC connects the sub-district gravity treatment of setting up the message appointment; (3) the RRC connection refused message is specified the gravity treatment of frequency or appointment standard.

According to agreement, to (1) this situation, need after reselect the sub-district, on new sub-district, resend the RRC connection and set up request message, do not consider the situation that MM connection management process and MM special process clash.To (2) this situation, agreement has only been described the RRC connection and has been set up the successful processing of message appointment frequency selection, the processing of selecting to fail is not described.To (3) this situation, might the RRC connection refused message specify frequency or appointment standard gravity treatment or not specify gravity treatment, no matter any one situation that all might cause MM connection management process and MM special process to clash in three kinds of situations takes place.Now general processing method is to connect to set up at RRC to forbid the sub-district gravity treatment in the process, and this just causes UE to connect in poor sub-district of signal and the RRC of UTRAN, thereby influences call successful rate.

Summary of the invention

The invention provides a kind of RRC connection and set up the processing method and the device of sub-district gravity treatment in the process, connect the sub-district gravity treatment of setting up in the process in order to the RRC that exists in the solution prior art and cause MM connection management process and MM special process to clash, and then cause the problem of call failure.

The invention provides a kind of RRC connection and set up the processing method of sub-district gravity treatment in the process, comprising:

A, be connected when in the process of foundation the sub-district gravity treatment taking place when user terminal and UTRAN carry out RRC, the Access Layer notice Non-Access Stratum RRC of described user terminal connects to set up the sub-district gravity treatment takes place in the process;

Request is set up in B, this connection of described Non-Access Stratum buffer memory, and whether detection in real time receives the cell information that described Access Layer reports, and judge after receiving the cell information that reports whether mobile management MM connection management process and MM special process clash, if clash, then initiate the MM special process, and after the MM special process finishes, initiate the connection of buffer memory again and set up request or wait for that network side makes a call again.

Wherein, carrying out RRC between described user terminal and the UTRAN is connected and the sub-district gravity treatment takes place in the process of foundation is:

Described user terminal is initiated to connect to described UTRAN and is set up in the process, and the sub-district gravity treatment of measurement triggering takes place; Perhaps, the RRC that sends according to described UTRAN of described user terminal connects and sets up message and specify sub-district gravity treatment on the frequency; Specify the frequency gravity treatment when perhaps, described user terminal receives the RRC connection refused message that described UTRAN sends or specify sub-district gravity treatment on the standard.

Concrete, the RRC that sends according to described UTRAN when described user terminal connects when setting up message and specifying sub-district gravity treatment on the frequency, and described steps A is specially:

Steps A 1, described user terminal receive RRC that described UTRAN sends and connect and set up message and specify sub-district gravity treatment on the frequency;

Steps A 2, described Access Layer judge whether that success chooses the sub-district of specifying on the frequency, if successfully select, described Access Layer checks whether counter surpasses threshold value, then stop RRC and connect the process of setting up if surpass; If do not surpass then to notify the sub-district gravity treatment take place in the described Non-Access Stratum RRC connection procedure.

When specifying the frequency gravity treatment or specifying sub-district gravity treatment on the standard when described user terminal receives the RRC connection refused message that described UTRAN sends, described steps A is specially:

When described UTRAN sends the RRC connection refused message to described user terminal, and when specifying described user terminal to insert sub-district on other carrier frequency or the standard, described Access Layer checks whether counter surpasses threshold value, if connect the process of setting up above then stopping RRC, otherwise in the notice Non-Access Stratum RRC connection procedure sub-district gravity treatment takes place.

When described user terminal receives the RRC connection refused message that described UTRAN sends, specifying frequency or specifying sub-district gravity treatment on the standard, also comprise after this connects the request of foundation at the Non-Access Stratum buffer memory among the described step B:

Described Access Layer is judged described user terminal, and whether gravity treatment is successful, when the gravity treatment of described user terminal success when specifying carrier frequency or specify sub-district on the standard, described Access Layer is to Non-Access Stratum reporting subdistrict information, and the startup timer, to guarantee during timing operation, can gravity treatment not returning former working frequency points or former standard; When the not successful gravity treatment of described user terminal when specifying carrier frequency or specify sub-district on the standard, described Access Layer starts timer, it is resident to choose a proper cell, and behind timer expiry, reads system information and reporting subdistrict information again and give Non-Access Stratum.

Wherein, described length of timer is specified by described RRC connection refused message.

Method provided by the invention further has following characteristics:

Among the described step B, concrete processing procedure after clashing is: described Non-Access Stratum judges that the connection request of setting up of buffer memory is caller or called, if the MM special process is then initiated in caller, and after special process finishes, initiate the connection of buffer memory more again and set up request; If called, request is set up in the connection that then empties described buffer memory, and initiates the MM special process, after special process finishes, waits for that network side makes a call again.

If when described MM connection management process and MM special process did not clash, described Non-Access Stratum was set up request message with the connection of buffer memory and is issued to described Access Layer again, initiate RRC again by described Access Layer and connect the process of setting up.

The present invention also provides a kind of user terminal, specifically comprises: sub-district gravity treatment message acquiring unit, Access Layer unit and Non-Access Stratum unit, wherein,

Described sub-district gravity treatment message acquiring unit is used for carrying out RRC when being connected the process of setting up the sub-district gravity treatment taking place at user terminal and UTRAN, obtains sub-district gravity treatment message, and triggers described Access Layer unit;

Described Access Layer unit is used for sending the RRC connection to described Non-Access Stratum unit and sets up process generation sub-district gravity treatment notice, and reports to described Non-Access Stratum unit after obtaining cell information;

Described Non-Access Stratum unit, be used for after receiving the sub-district gravity treatment notice of described Access Layer unit transmission, this of cache user terminal connects the request of foundation, and whether detection in real time receives the cell information that described Access Layer unit reports, judge after receiving the cell information that reports whether MM connection management process and MM special process clash, if clash, then initiate the MM special process, and after the MM special process finishes, initiate the connection of buffer memory again and set up request or wait for that network side makes a call again.

Above-mentioned user terminal and UTRAN carry out RRC and are connected and the sub-district gravity treatment takes place in the process of foundation are:

Described user terminal is initiated to connect to described UTRAN and is set up in the process, and the sub-district gravity treatment of measurement triggering takes place; Perhaps,

The RRC that described user terminal sends according to described UTRAN connects and sets up message and specify sub-district gravity treatment on the frequency; Perhaps,

Specify the frequency gravity treatment when described user terminal receives the RRC connection refused message that described UTRAN sends or specify sub-district gravity treatment on the standard.

Compared with prior art, the present invention has the following advantages:

Method provided by the invention, make the cell information that the Non-Access Stratum active detecting Access Layer of user terminal reports, and judge whether MM connection management process and MM special process clash, and then select whether to stop connecting the process of setting up or retransmit to connect and set up request message, effectively avoided after the gravity treatment MM connection management process to clash and caused RRC to be connected the problem of setting up failure, thereby improved call successful rate with the MM special process; Simultaneously, Access Layer is realized the operation of forbidding inserting and forbidding former service frequency of protocol requirement by to the cell information selection on opportunity, farthest respects the agreement regulation.

Description of drawings

In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to introduce simply the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 sets up the process schematic diagram for RRC between user terminal in the prior art and the UTRAN is connected;

Fig. 2 sets up the process flow figure of sub-district gravity treatment in the process for RRC provided by the invention connects;

The method flow diagram that Fig. 3 provides for the specific embodiment of the invention one;

The method flow diagram that Fig. 4 provides for the specific embodiment of the invention two;

The method flow diagram that Fig. 5 provides for the specific embodiment of the invention three;

Fig. 6 is the structure chart of a kind of user terminal provided by the invention.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.

The invention provides a kind of RRC connection and set up the processing method and the device of sub-district gravity treatment in the process, cause MM connection management process and MM special process to clash in order to solve the sub-district gravity treatment that exists the RRC connection to set up in the process in the prior art, and then cause the problem of call failure.

Concrete, the processing method of sub-district gravity treatment in the process is set up in a kind of RRC connection provided by the invention, as shown in Figure 2, may further comprise the steps:

Step S201, be connected when in the process of foundation the sub-district gravity treatment taking place when user terminal and UTRAN carry out RRC, the Access Layer notice Non-Access Stratum RRC of user terminal connects to set up the sub-district gravity treatment takes place in the process;

Request is set up in step S202, this connection of Non-Access Stratum buffer memory, and whether detection in real time receives the cell information that Access Layer reports, and judge after receiving the cell information that reports whether mobile management MM connection management process and MM special process clash, if clash, then initiate the MM special process, and after the MM special process finishes, initiate the connection of buffer memory again and set up request or wait for that network side makes a call again.

Wherein, carrying out RRC between user terminal and the UTRAN is connected and the sub-district gravity treatment takes place in the process of foundation is:

User terminal is initiated to connect to UTRAN and is set up in the process, and the sub-district gravity treatment of measurement triggering takes place; Perhaps, the RRC that sends according to UTRAN of user terminal connects and sets up message and specify sub-district gravity treatment on the frequency; Specify the frequency gravity treatment when perhaps, user terminal receives the RRC connection refused message that UTRAN sends or specify sub-district gravity treatment on the standard.

Concrete, the RRC that sends according to UTRAN when user terminal connects when setting up message and specifying sub-district gravity treatment on the frequency, and above-mentioned steps S201 is specially:

User terminal receives RRC that UTRAN sends and connects and set up message and specify sub-district gravity treatment on the frequency; Access Layer judges whether that success chooses the sub-district of specifying on the frequency, if successfully do not select, Access Layer checks whether counter surpasses threshold value, if connect the process of setting up above then stopping RRC, if surpass then to notify the sub-district gravity treatment takes place in the Non-Access Stratum RRC connection procedure.

When specifying the frequency gravity treatment or specifying the standard gravity treatment when user terminal receives the RRC connection refused message of UTRAN transmission, above-mentioned steps S201 is specially:

When UTRAN sends the RRC connection refused message to user terminal, and the designated user terminal is when inserting sub-district on other carrier frequency or the standard, Access Layer need check whether counter surpasses threshold value, if connect the process of setting up above then stopping RRC, otherwise in the notice Non-Access Stratum RRC connection procedure sub-district gravity treatment takes place.

Further, when specifying frequency or specifying sub-district gravity treatment on the standard when user terminal receives the RRC connection refused message that UTRAN sends, above-mentioned steps S202 also comprises:

Access Layer is judged user terminal, and whether gravity treatment is successful, when the gravity treatment of user terminal success when specifying carrier frequency or specify sub-district on the standard, Access Layer is to Non-Access Stratum reporting subdistrict information, and the startup timer, to guarantee can gravity treatment not return former working frequency points or former standard during timing operation; When the not successful gravity treatment of user terminal when specifying carrier frequency or specify sub-district on the standard, Access Layer starts timer, it is resident to choose a proper cell, and behind timer expiry, reads system information and reporting subdistrict information again and give Non-Access Stratum.

Wherein, length of timer is specified by described RRC connection refused message.

Among the above-mentioned steps S202, the concrete processing procedure that mobile management MM connection management process and MM special process clash is:

Non-Access Stratum judges that the connection request of setting up of buffer memory is caller or called, if the MM special process is then initiated in caller, and after special process finishes, initiates the connection of buffer memory more again and sets up request; If called, request is set up in the connection that then empties buffer memory, and initiates the MM special process, after special process finishes, waits for that network side makes a call again.

If when MM connection management process and MM special process did not clash, Non-Access Stratum was set up request message with the connection of buffer memory and is issued to Access Layer again, initiate RRC again by Access Layer and connect the process of setting up.

Method provided by the invention, make the cell information that the Non-Access Stratum active detecting Access Layer of user terminal reports, and judge whether MM connection management process and MM special process clash, and then select whether to stop connecting the process of setting up or retransmit to connect and set up request message, effectively avoided after the gravity treatment MM connection management process to clash and caused RRC to be connected the problem of setting up failure, thereby improved call successful rate with the MM special process; Simultaneously, Access Layer is realized the operation of forbidding inserting and forbidding former service frequency of protocol requirement by to the cell information selection on opportunity, farthest respects the agreement regulation.

Elaborate the specific implementation process of the processing method of sub-district provided by the invention gravity treatment below by several specific embodiments.

Embodiment provided by the present invention is the cell reselection process finished by the associated treatment of Access Layer and Non-Access Stratum, wherein, Non-Access Stratum carries out active detecting by the cell information that Access Layer is reported, avoid MM connection management process and MM special process to clash, and then improved call successful rate.

Specific embodiment one, present embodiment have elaborated the RRC connection and have set up in the process, and the cell reselection process process of measurement triggering takes place.Concrete, if set up in the process in the RRC connection, physical layer reporting measurement result indicates and has found better sub-district, thereby cause RRC that the sub-district gravity treatment that measurement result triggers takes place, AS (Access Stratum then, Access Layer) layer is notified NAS (Non-Access Stratum before gravity treatment, Non-Access Stratum) RRC taking place connects the sub-district gravity treatment of setting up in the process, NAS layer buffer memory this time connects sets up request message, treat AS layer reporting subdistrict information behind the NAS layer, the NAS layer judges according to the cell information that reports whether RA/LA changes, if do not change, just request message is set up in the connection of buffer memory and be issued to the AS layer again, initiate RRC again by AS and connect foundation.If RA/LA changes, the NAS layer judges that the connection request of setting up of buffer memory is called MT (Mobile Termination) or caller MO (MobileOriginated), if MO, then initiate the MM special process, after special process finishes, again initiate the calling of the MO of buffer memory in advance again, if buffer memory is the MT business, request message is set up in the connection that then empties buffer memory, this process that empties shows as refusal MT business in the specific implementation process, after the special process end, wait for that network side makes a call again.

As shown in Figure 3, the method flow diagram for present embodiment provides specifically may further comprise the steps:

Step S301, beginning.

The upper strata of step S302, UE (Non-Access Stratum) issues to connect sets up request message to the RRC in the Access Layer.

Step S303, RRC send the RRC connection to UTRAN and set up request message.

Step S304, RRC judge whether to take place the gravity treatment of measurement triggering sub-district, if execution in step S309 then, otherwise execution in step S305.

Step S305, RRC receive the RRC connection that sends from UTRAN and set up message.

Step S306, RRC connect according to RRC and set up the message arrangement related resource.

Step S307, RRC send the RRC connection setup complete message to UTRAN.

Step S308, RRC connection is set up successfully.

Step S309, RRC judge that whether counter V300 surpasses threshold value N300, if, execution in step S310 then; Otherwise execution in step S311.

Step S310, termination RRC connection building process, procedure failure is set up in the RRC connection.

Step S311, RRC notice Non-Access Stratum NAS sets up in the RRC connection sub-district gravity treatment takes place in the process.

Step S312, RRC reporting subdistrict information are given Non-Access Stratum NAS.

Step S313, Non-Access Stratum judge whether RA/LA changes, if change then execution in step S314; If do not change, then initiate RRC again and connect the process of setting up.

Step S314, judge that the buffer memory business is MO business or MT business, if MO business execution in step S315 then; If the MT business is then refused execution in step S315 after the MT business.

After step S315, Non-Access Stratum use the link setup reason of particular service, execution in step S302.

Specific embodiment two, present embodiment have elaborated UE and have connected the processing procedure that the frequency of setting up the appointment in the message carries out re-selecting cell according to the RRC that UTRAN sends.

Concrete, if connect in the foundation at RRC, UE sends RRC connection request message to UTRAN, and the UTRAN transmission comprises the RRC connection of specifying frequency point information and sets up message to UE, when making UE specify cell reselection process on the carrier frequency, if UE successfully chooses on the sub-district of specifying on the carrier frequency, RRC configuration related physical layer resource, and assembling RRC connection setup complete message, and on up DCCH, the RRC connection setup complete message is sent to UTRAN; If UE fails when choosing on the sub-district of specifying on the carrier frequency, the sub-district gravity treatment has taken place in RRC notice NAS layer RRC, and gives the NAS layer reporting district information.After the NAS layer is received cell information, judge whether MM connection management process and MM special process clash.If no conflict occurred then the repeating transmission connection is set up request message to RRC, if clash, what then judge buffer memory is MO business or MT business, if be the MO business, then initiate the MM special process, special process is initiated the business of the MO of buffer memory in advance after finishing again again; If buffer memory is the MT business, then refuse the MT business, initiate the MM special process, after special process finished, the wait network side was initiated the calling of MT again.

As shown in Figure 4, the method flow diagram for the embodiment of the invention specifically may further comprise the steps:

Step S401, beginning.

Step S402, UE upper strata issue to connect sets up the RRC that request message is given Access Layer.

Step S403, RRC send the RRC connection to UTRAN and set up request message.

Step S404, RRC receive the RRC connection of UTRAN transmission and set up message.

Step S405, RRC judge that the RRC receive connects and set up message and whether contain the appointment frequency point information, if do not have, and execution in step S406 then; If the frequency of appointment message is arranged, then execution in step S409.

Step S406, RRC connect according to RRC and set up the message arrangement related resource.

Step S407, RRC send the RRC connection setup complete message to UTRAN.

Step S408, RRC connection is set up successfully.

Step S409, RRC carry out the cell reselection process flow process.

Step S410, RRC judge UE whether gravity treatment to the sub-district of specifying on the frequency, if gravity treatment success, then execution in step S406; Otherwise execution in step S411;

Step S411, judge that whether counter V300 surpasses threshold value N300, if surpass, execution in step S412 then, otherwise execution in step S413.

Step S412, termination RRC connection building process, procedure failure is set up in the RRC connection.

Step S413, RRC notice Non-Access Stratum RRC connection is set up the sub-district gravity treatment is taken place in the process.

Step S414, RRC reporting subdistrict information are given Non-Access Stratum.

Step S415, Non-Access Stratum judge whether RA/LA changes, if change then execution in step S416; If do not change, then initiate RRC link setup process execution in step S402 again.

Step S416, judge that the buffer memory business is MO business or MT business, if MO business execution in step S417 then; If the MT business is then refused execution in step S417 after the MT business.

After step S417, Non-Access Stratum use the link setup reason of particular service, execution in step S402.

Specific embodiment three, this embodiment have elaborated UTRAN and the RRC connection refused message have taken place to UE, and UE specifies the frequency point cell gravity treatment according to the RRC connection refused message or specifies the implementation procedure of standard re-selection process.

Concrete, if connect in the foundation at RRC, UE has sent RRC connection request message to UTRAN, because network congestion, UTRAN might send the RRC connection refused message to UE, and specifies UE to insert other carrier frequency or standard.If UTRAN specifies UE to insert other carrier frequency, RRC need judge whether counter V300 surpasses threshold value N300, if V300>N300 then stops RRC and connects foundation, otherwise the sub-district gravity treatment takes place notice NAS layer RRC.Also success is resident on the carrier frequency if the UE gravity treatment is to specifying, and RRC reporting subdistrict information is given the NAS layer, and starts timer simultaneously, guarantees can gravity treatment not return former working frequency points at timing phase run duration, and wherein, length of timer is specified by the RRC connection refused message; If the UE gravity treatment is when specifying the carrier frequency failure, RRC starts timer, and it is resident to choose a proper cell, wait timer expiry after, stressed system information also reports cell information to give NAS layer; If UTRAN specifies UE to insert other standard, RRC need judge whether the V300 counter surpasses threshold value N300, if V300>N300 then stops RRC and connects foundation, otherwise the sub-district gravity treatment takes place notice NAS layer RRC.If UE selects the success of appointment standard, then hang up the 3G protocol stack, can start timer after the 2G gravity treatment success, and report cell information to give the NAS layer, and guarantee to return the 3G standard in the not gravity treatment of timer run duration; If UE select to specify the standard failure, RRC starts timer, and it is resident to choose a suitable cell, wait timer expiry after, stressed system information also reports cell information to give NAS layer.After the NAS layer is received cell information, judge whether MM connection management process and MM special process clash.If no conflict occurred then the repeating transmission connection is set up request message to RRC; If clash, what then judge buffer memory is MO business or MT business, if be the MO business, then initiates the MM special process, and special process is initiated the business of the MO of buffer memory in advance after finishing again again; If buffer memory is the MT business, then refuse the MT business, initiate the MM special process, after special process finished, the wait network side was initiated the calling of MT again.

As shown in Figure 5, the method flow diagram for present embodiment specifically may further comprise the steps:

Step S501, beginning.

Step S502, UE upper strata issue to connect sets up the RRC that request message is given Access Layer.

Step S503, RRC send the RRC connection to UTRAN and set up request message.

Step S504, RRC receive the RRC connection refused message from UTRAN.

Step S505, RRC judge that whether counter V300 surpasses threshold value N300, if surpass, and then execution in step S506 otherwise execution in step S507

Step S506, termination RRC connection building process, procedure failure is set up in the RRC connection.

Step S507, judge whether UTRAN specifies the UE gravity treatment to other carrier frequency or standard, if not, execution in step S508 then, otherwise execution in step S510.

Step S508, RRC start timer.

Step S509, RRC behind timer expiry, execution in step S503.

Step S510, RRC notice Non-Access Stratum RRC connection is set up the sub-district gravity treatment is taken place in the process.

Step S511, RRC judge that UE is that gravity treatment is to specifying frequency or gravity treatment to specifying standard, if gravity treatment is to specifying frequency, then execution in step S512; If gravity treatment is to specifying standard, then execution in step S515;

Step S512, RRC judge whether UE successfully chooses the sub-district of specifying on the frequency, if successfully do not select then execution in step S513; If successfully select then execution in step S516.

Step S513, startup timer, and it is resident to choose a proper cell.

Behind step S514, the timer expiry, read system information again and report cell information to give Non-Access Stratum, execution in step S517.

Step S515, RRC judge whether UE successfully chooses and specify on the standard, if select successfully then execution in step S516, otherwise execution in step S513.

Step S516, startup timer guarantee can gravity treatment not return former working frequency points or former working form during the timing operation.

Step S517, RRC reporting subdistrict information are given Non-Access Stratum.

Step S518, Non-Access Stratum judge whether RA/LA changes, if change then execution in step S519; If do not change, then initiate RRC again and connect the process of setting up.

Step S519, judge that the buffer memory business is MO business or MT business, if MO business execution in step S520 then; If the MT business is then refused execution in step S520 after the MT business.

After the link setup reason of particular service is used on step S520, UE upper strata, execution in step S502.

Method provided by the invention, make the cell information that the Non-Access Stratum active detecting Access Layer of user terminal reports, and judge whether MM connection management process and MM special process clash, and then select whether to stop connecting the process of setting up or retransmit to connect and set up request message, effectively avoided after the gravity treatment MM connection management process to clash and caused RRC to be connected the problem of setting up failure, thereby improved call successful rate with the MM special process; Simultaneously, Access Layer is realized the operation of forbidding inserting and forbidding former service frequency of protocol requirement by to the cell information selection on opportunity, farthest respects the agreement regulation.

The present invention also provides a kind of user terminal, as shown in Figure 6, specifically comprises: sub-district gravity treatment message acquiring unit 610, Access Layer unit 620 and Non-Access Stratum unit 630, wherein,

Sub-district gravity treatment message acquiring unit 610 is used for carrying out RRC when being connected the process of setting up the sub-district gravity treatment taking place at user terminal and UTRAN, obtains sub-district gravity treatment message, and triggers Access Layer unit 620.

Access Layer unit 620 is used for sending the RRC connection to Non-Access Stratum unit 630 and sets up process generation sub-district gravity treatment notice, and reports to Non-Access Stratum unit 630 after obtaining cell information.

Non-Access Stratum unit 630, be used for after receiving the sub-district gravity treatment notice of Access Layer unit 620 transmissions, this of cache user terminal connects the request of foundation, and whether detection in real time receives the cell information that Access Layer unit 620 reports, judge after receiving the cell information that reports whether MM connection management process and MM special process clash, if clash, then initiate the MM special process, and after the MM special process finishes, initiate the connection of buffer memory again and set up request or wait for that network side makes a call again.

Wherein, user terminal and UTRAN carry out RRC and are connected and the sub-district gravity treatment takes place in the process of foundation are:

User terminal is initiated to connect to UTRAN and is set up in the process, and the sub-district gravity treatment of measurement triggering takes place; Perhaps, the RRC that sends according to UTRAN of user terminal connects and sets up message and specify sub-district gravity treatment on the frequency; Specify the frequency gravity treatment when perhaps, user terminal receives the RRC connection refused message that UTRAN sends or specify sub-district gravity treatment on the standard.

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 (9)

1. a radio resource control RRC connects the processing method of setting up generation sub-district gravity treatment in the process, it is characterized in that, may further comprise the steps:
A,, user terminal and global terrestrial radio access network UTRAN be connected when in the process of foundation the sub-district gravity treatment taking place when carrying out RRC, the Access Layer notice Non-Access Stratum RRC connection of described user terminal is set up the sub-district gravity treatment is taken place in the process, if the sub-district gravity treatment is when specifying frequency when receiving the RRC connection refused message that described UTRAN sends by described user terminal or specifying the sub-district gravity treatment that triggers on the standard, after request is set up in this connection of described Non-Access Stratum buffer memory, execution in step B; Otherwise, after request is set up in this connection of described Non-Access Stratum buffer memory, execution in step C;
B, described Access Layer are judged described user terminal, and whether gravity treatment is successful, when the gravity treatment of described user terminal success when specifying frequency or specify sub-district on the standard, described Access Layer is to Non-Access Stratum reporting subdistrict information, and startup timer, to guarantee can gravity treatment not return former working frequency points or former standard, execution in step C at the timer run duration; When the not successful gravity treatment of described user terminal when specifying frequency or specify sub-district on the standard, described Access Layer starts timer, and it is resident to choose a proper cell, and behind timer expiry, read system information and reporting subdistrict information again and give described Non-Access Stratum, execution in step C;
Whether step C, the real-time detection of described Non-Access Stratum receive the cell information that described Access Layer reports, and judge after receiving the cell information that reports whether mobile management MM connection management process and MM special process clash, if clash, then initiate the MM special process, and after the MM special process finishes, initiate the connection of buffer memory again and set up request or wait for that network side makes a call again.
2. the method for claim 1 is characterized in that, carries out RRC between described user terminal and the UTRAN and is connected and the sub-district gravity treatment takes place in the process of foundation is:
Described user terminal is initiated to connect to described UTRAN and is set up in the process, and the sub-district gravity treatment of measurement triggering takes place; Perhaps,
The RRC that described user terminal sends according to described UTRAN connects and sets up message and specify sub-district gravity treatment on the frequency; Perhaps,
Specify the frequency gravity treatment when described user terminal receives the RRC connection refused message that described UTRAN sends or specify sub-district gravity treatment on the standard.
3. method as claimed in claim 1 or 2 is characterized in that, the RRC that sends according to described UTRAN when described user terminal connects when setting up message and specifying sub-district gravity treatment on the frequency, and described steps A is specially:
Steps A 1, described user terminal receive RRC that described UTRAN sends and connect and set up message and specify sub-district gravity treatment on the frequency;
Steps A 2, described Access Layer judge whether that success chooses the sub-district of specifying on the frequency, if successfully select, described Access Layer checks whether counter surpasses threshold value, then stop RRC and connect the process of setting up if surpass; If do not surpass then to notify the sub-district gravity treatment take place in the described Non-Access Stratum RRC connection procedure.
4. method as claimed in claim 1 or 2 is characterized in that, when specifying the frequency gravity treatment or specifying sub-district gravity treatment on the standard when described user terminal receives the RRC connection refused message that described UTRAN sends, described steps A is specially:
When described UTRAN sends the RRC connection refused message to described user terminal, and when specifying described user terminal to insert sub-district on other frequencies or the standard, described Access Layer checks whether counter surpasses threshold value, if connect the process of setting up above then stopping RRC, otherwise in the notice Non-Access Stratum RRC connection procedure sub-district gravity treatment takes place.
5. the method for claim 1 is characterized in that, described length of timer is specified by described RRC connection refused message.
6. the method for claim 1 is characterized in that, the concrete processing procedure after described the clashing is:
Described Non-Access Stratum judges that the connection request of setting up of buffer memory is caller or called, if the MM special process is then initiated in caller, and after special process finishes, initiates the connection of buffer memory again and sets up request; If called, request is set up in the connection that then empties described buffer memory, and initiates the MM special process, after special process finishes, waits for that network side makes a call again.
7. the method for claim 1 is characterized in that, also comprises:
If when described MM connection management process and MM special process did not clash, described Non-Access Stratum was set up request message with the connection of buffer memory and is issued to described Access Layer again, initiate RRC again by described Access Layer and connect the process of setting up.
8. a user terminal is characterized in that, comprising: sub-district gravity treatment message acquiring unit, Access Layer unit and Non-Access Stratum unit, wherein,
Described sub-district gravity treatment message acquiring unit is used for carrying out RRC when being connected the process of setting up the sub-district gravity treatment taking place at user terminal and UTRAN, obtains sub-district gravity treatment message, and triggers described Access Layer unit;
Described Access Layer unit, be used for sending the RRC connection and set up process generation sub-district gravity treatment notice to described Non-Access Stratum unit, if the sub-district gravity treatment is when specifying frequency when receiving the RRC connection refused message that described UTRAN sends by described user terminal or specifying the sub-district gravity treatment that triggers on the standard, whether gravity treatment is successful for the described user terminal of described Access Layer unit judges, when the gravity treatment of described user terminal success when specifying frequency or specify sub-district on the standard, to Non-Access Stratum unit reporting subdistrict information, and the startup timer, to guarantee can gravity treatment not return former working frequency points or former standard at the timer run duration; When the not successful gravity treatment of described user terminal when specifying frequency or specify sub-district on the standard, described Access Layer unit starting timer, it is resident to choose a proper cell, and behind timer expiry, reads system information and reporting subdistrict information again and give described Non-Access Stratum unit; Otherwise, after obtaining cell information, directly report to described Non-Access Stratum unit;
Described Non-Access Stratum unit, be used for after receiving the sub-district gravity treatment notice of described Access Layer unit transmission, this of cache user terminal connects the request of foundation, and whether detection in real time receives the cell information that described Access Layer unit reports, judge after receiving the cell information that reports whether MM connection management process and MM special process clash, if clash, then initiate the MM special process, and after the MM special process finishes, initiate the connection of buffer memory again and set up request or wait for that network side makes a call again.
9. user terminal as claimed in claim 8 is characterized in that, described user terminal and UTRAN carry out RRC and be connected and the sub-district gravity treatment takes place in the process of foundation be:
Described user terminal is initiated to connect to described UTRAN and is set up in the process, and the sub-district gravity treatment of measurement triggering takes place; Perhaps,
The RRC that described user terminal sends according to described UTRAN connects and sets up message and specify sub-district gravity treatment on the frequency; Perhaps,
Specify the frequency gravity treatment when described user terminal receives the RRC connection refused message that described UTRAN sends or specify sub-district gravity treatment on the standard.
CN2009101479756A 2009-06-12 2009-06-12 Processing method for cell reselection in establishment process of RRC connection and device CN101583170B (en)

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Application publication date: 20091118

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Denomination of invention: Processing method for cell reselection in establishment process of RRC connection and device

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