CN100446621C - Method for establishing wireless resource control access and wireless network controller - Google Patents
Method for establishing wireless resource control access and wireless network controller Download PDFInfo
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- CN100446621C CN100446621C CNB2006100249611A CN200610024961A CN100446621C CN 100446621 C CN100446621 C CN 100446621C CN B2006100249611 A CNB2006100249611 A CN B2006100249611A CN 200610024961 A CN200610024961 A CN 200610024961A CN 100446621 C CN100446621 C CN 100446621C
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Abstract
The present invention relates to the field of mobile communication, and discloses a method for establishing wireless resource control connection and a wireless network controller, so that the time delay for establishing RRC connection is reduced, and the success ratio of the establishment of the RRC connection is increased. In the present invention, after an RNC sends an RRC connection establishment message to a UE, if the RNC does not receive an RRC connection establishment completion message from the UE in a preset time length, the RNC resends the RRC connection establishment message to the UE. The RNC resends the RRC connection establishment message according to the preset time length until the RNC receives the RRC connection establishment completion message from the UE or the number of resending reaches a preset value, wherein the product of the preset time length and the preset value is less than the maximum waiting time needed for that the UE resends an RRC connection request message after that the UE sends the RRC connection request message fails.
Description
Technical field
The present invention relates to moving communicating field, be particularly related to Wideband Code Division Multiple Access (WCDMA) (Wideband CodeDivision Multiple Access, abbreviation " WCDMA ") Radio Resource control in the system (RadioResource Control is called for short " RRC ") establishment of connection.
Background technology
WCDMA is as one of 3G (Third Generation) Moblie standard, by core net (Core Net, abbreviation " CN "), Universal Terrestrial Radio Access Network (UMTS Terrestrial Radio Access Network, be called for short " UTRAN ") and subscriber equipment (User Equipment is called for short " UE ") composition.
Wherein, UTRAN comprises one or several RNS (Radio NetworkSubsystem is called for short " RNS ") again.Each RNS is made up of a radio network controller (Radio NetworkController is called for short " RNC ") and one or more base-station node (Node Base Station is called for short " NodeB ").Usually, be connected by the Iu interface between RNC and the CN; Connect by Iub interface between NodeB and the RNC; Be connected by the Iur interface between RNC and the RNC, the Iur interface can connect or connect by transmission network by the direct physical between the RNC to be realized.
In said structure, RNC is responsible for distributing and is attached thereto with control or the Radio Resource of relevant NodeB, promptly be responsible for the Radio Resource of control UTRAN, mainly finish functions such as the connection foundation of Radio Resource control (RadioResource Control is called for short " RRC ") and disconnection, switching, the merging of grand diversity, RRM control.
Wherein, it is the connection of air interface rrc layer between UE and the UTRAN that RRC connects, and each UE can only have a RRC to connect usually.UE promptly is in (IDLE) state following time free time when not setting up RRC and connect, UE can only receive the paging and the system information broadcast of network.When UE need send information to initiate business to network, perhaps register, during basic activity such as sub-district gravity treatment, just need to initiate RRC and connect the process of setting up, set up and UTRAN between RRC connect to carry out information interaction, carry out comings and goings then.After activity is finished, discharge RRC and connect.It is can exchange message between UE and the network in order to make that RRC connects the purpose of setting up.
It is the frequent activity of initiating of UE that RRC sets up.UE need need to set up RRC with UTRAN and be connected when network send various information or use WCDMA network professional.And UE in order not take Internet resources and power saving, can discharge RRC to connect when not carrying out these activities, is in the idle condition that no RRC connects.When needing have RRC to be connected once more, initiate RRC again and set up process with network.Therefore, the RRC connection is created as the important indicator that power is the network performance quality.
At present, connect the success rate of setting up in order to guarantee RRC, UE has adopted overtime retransmission mechanism.Be that UE is after sending RRC connection request (RRC CONNECTION REQUEST) message, start a timer, wait for the response of RNC, if timer has surpassed maximum latency, UE does not receive that still RRC connects foundation (RRC CONNECTION SETUP) message, UE will retransmit RRC connection request message, attempt setting up RRC once more and connect.After repeating several times, connect if still can not set up RRC, UE will abandon setting up the RRC connection so, and report high-rise RRC to connect the foundation failure.
Specifically, according to of the explanation of one of WCDMA 3GPP 25 serial protocols 331 V3.7.0 (2001-06) agreement to the Radio Resource control flow, as shown in Figure 1, in step 110, UE sends RRC connection request message to the UTRAN side, it is 1 that counter V300 is set simultaneously, and starts predefined timer T300.Wherein, the number of times that counter V300 control messages retransmits, the each maximum latency that awaits a response after the RRC connection request message that sends of timer T300 control.
After this, in step 120, when the UTRAN side was received the RRC connection request message that UE sends, if allow to connect, then RNC was that it distributes UTRAN side resource, and in step 130, and RNC sends RRC to UE and connects and set up message.
Set up message if UE receives from the RRC connection of UTRAN side, then enter step 140, send a confirmation to the UTRAN side, RRC connects foundation and finishes (RRC CONNECTIONSETUP COMPLETE) message, and notice RNC connection is set up and finished.
If receiving from the RRC connection of UTRAN side, UE do not set up message, and timer T300 is overtime, and counter V300 does not arrive default number of retransmissions, in the case, enter step 150, UE resends RRC connection request message, simultaneously, counter V300 adds 1, and restarts timer T300.
If greater than default maximum retransmission N300, UE still do not receive that the RRC of UTRAN side connects and set up message up to counter V300, then enter step 160, UE abandons setting up RRC and connects, and reports high-rise RRC to connect to set up and fail, and UE enters idle condition.The time of above-mentioned timer and the number of retransmissions of UE can be in the network side settings.
In actual applications, there is following problem in such scheme: existing RRC cut-in method has increased the access delay of UE, has wasted Internet resources.
Cause the main cause of this situation to be, when UE sends RRC connection request message and do not receive that message is set up in the RRC connection, can repeat to send RRC connection request message, surpass predefined value until receiving that RRC connects to set up message or retransmit number of times.Because UE needs to wait for a period of time after sending RRC connection request message failure each time and could initiate RRC once more and connect the process of setting up, the time that makes the UE access network need has increased by one section, the time that increases equals maximum latency, is generally 2s, thereby has increased the access delay of UE.
And, UE do not receive RRC connect set up message reason not necessarily the UTRAN side do not respond, also might be to set up information drop-out because RRC connects, connect the success rate of setting up and reduced RRC.In this case, if UE sends RRC connection request message to the UTRAN side once more, it is unnecessary just to seem, and has wasted the resource of UTRAN side.Because according to present way, the UTRAN side is not done any uniqueness inspection to each bar RRC connection request message of receiving, without exception according to agreement, the resource of distribution network side, thereby may cause the duplicate allocation Internet resources, even these resources finally can be released, still in a period of time, formed the wasting of resources.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of method and radio network controller of setting up the Radio Resource control connection, makes that the time delay of setting up the RRC connection is reduced and RRC establishment of connection success rate is improved
For achieving the above object, the invention provides a kind of method of setting up the Radio Resource control connection, comprise following steps:
Subscriber equipment sends wireless resource control connection request message to radio network controller, and the connection of Radio Resource control is set up in request;
Described radio network controller returns the Radio Resource control connection to described subscriber equipment and sets up message, if in default duration, do not receive from the Radio Resource control connection foundation of this subscriber equipment and finish message, then retransmit described Radio Resource control connection and set up message.
Wherein, described radio network controller is retransmitted described Radio Resource control connection according to described default duration and is set up message, receive to set up until this radio network controller and finish message, or retransmit number of times and reach predetermined value from the described Radio Resource control connection of described subscriber equipment.
In this external described method, described default duration is set up message and is finished the required time of message to receiving to set up from the described Radio Resource control connection of described subscriber equipment from sending described Radio Resource control connection greater than described radio network controller under the normal condition.
In this external described method, described default duration is greater than 700ms.
In this external described method, the product of described default duration and described predetermined value sends the required maximum latency of described wireless resource control connection request message less than described subscriber equipment once more after sending the wireless resource control connection request message failure.
In this external described method, described predetermined value is 1.
The present invention also provides a kind of radio network controller, comprise the transceiver module that is used for messaging, also comprise the repeating transmission timer, be used for sending or retransmitting to subscriber equipment picking up counting when the Radio Resource control connection is set up message at described transceiver module, if described receiver module is not received to set up from the Radio Resource control connection of this subscriber equipment and finished message in default duration, then trigger described transceiver module and retransmit described Radio Resource control connection and set up message.
Wherein, also comprise retransmission counter, be used for counting retransmitting number of times;
When reaching predetermined value or described transceiver module, described retransmission counter receives from the Radio Resource control connection of described subscriber equipment and sets up when finishing message that described transceiver module stops repeating transmission that described Radio Resource control connection is set up message.
In addition, the product of described default duration and described predetermined value is less than described subscriber equipment required maximum latency of described once more transmission wireless resource control connection request message after sending the wireless resource control connection request message failure.
By relatively finding, the main distinction of technical scheme of the present invention and prior art is,, after message is set up in UE transmission RRC connection,, then retransmit this RRC connection and set up message at RNC to this UE if RNC does not receive the RRC connection setup complete message from this UE in default duration.
RNC retransmits the RRC connection according to default duration and sets up message, and the RRC connection setup complete message or the repeating transmission number of times that receive from UE until this RNC reach predetermined value.Wherein, the product of default duration and predetermined value sends the required maximum latency of RRC connection request message less than UE once more after sending RRC connection request message failure.
Difference on this technical scheme, brought comparatively significantly beneficial effect, when promptly in default duration, not receiving the RRC connection setup complete message of UE by RNC, retransmit the RRC connection and set up message, improved the RRC connection and set up message by the correct probability that receives of UE, to such an extent as to thereby avoided UE owing to fail correctly to receive RRC and connect and set up message and have to initiate again RRC and connect the process of setting up, and the big RRC access delay that causes.
Because the product of default duration and predetermined value sends the required maximum latency of RRC connection request message less than UE once more after sending RRC connection request message failure.Therefore, realized improve RRC connect be created as power in, reduced the time delay that RRC sets up process.
Description of drawings
Fig. 1 sets up the method flow diagram that RRC connects in the prior art;
Fig. 2 is the system construction drawing of setting up the RRC connection of one better embodiment according to the present invention;
Fig. 3 is the method flow diagram of setting up the RRC connection of one better embodiment according to the present invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.
Core of the present invention is, when UE sets up the RRC connection at needs, sends RRC connection request message, the connection that RRC is set up in request to RNC; After RNC receives this message,, then return the RRC connection and set up message to this UE if allow it to connect; This UE returns the RRC connection setup complete message after receiving that message is set up in this RRC connection; If in default duration, RNC does not receive the RRC connection setup complete message from this UE, then retransmit the RRC connection and set up message, reach predetermined value up to receiving the RRC connection setup complete message or retransmitting number of times.
According to inventive principle, system and the method thereof of the present invention's one better embodiment being set up the RRC connection describe below.
As shown in Figure 2, set up in the system that RRC connects and comprise RNC and one or more UE at least, wherein, among the RNC except original transceiver module that is used for messaging, also comprise to be used to calculate wait for to receive the RRC used time of connection setup complete message and when this time reaches scheduled duration, trigger RRC and connect and set up the repeating transmission timer of message retransmission, and be used for retransmitting the retransmission counter that number of times is counted.
Specifically, when UE sets up the RRC connection at needs, send RRC connection request message to RNC, RNC receives this message by transceiver module, and under its situation about connecting of permission, send the RRC connection by transceiver module to it and set up message, starting the repeating transmission timer simultaneously picks up counting, if do not receive RRC connection setup complete message from this UE through timing transceiver module in default duration, then retransmit timer triggering transceiver module repeating transmission RRC connection and set up message, and count retransmitting number of times by retransmission counter.When retransmission counter reached predetermined value or transceiver module and receives RRC connection setup complete message from UE, transceiver module stopped RRC being connected the repeating transmission of setting up message.Wherein, the product of default duration and predetermined value sends the required maximum latency of RRC connection request message less than UE once more after sending RRC connection request message failure.
More than the system of present embodiment has been carried out simple declaration, the method that RRC connects of setting up to present embodiment is described in detail below.
As shown in Figure 3, in step 310, when UE sets up the RRC connection at needs, send RRC connection request message to RNC.
Then enter step 320, RNC receives the RRC connection request message from UE, judging whether to allow this UE to set up RRC according to the current network resources distribution condition connects, if allowing it to set up RRC connects, then insert step 330, otherwise, if not allowing this UE to set up RRC, RNC do not connect, then directly enter step 380, this RRC connection failure.
In step 330, RNC sends the RRC connection to this UE and sets up message after being this UE allocation of network resources, simultaneously, starts the repeating transmission timer and picks up counting, and retransmission counter is added 1.Wherein, the initial value of retransmission counter is 0.Then enter step 340.
Because UE can return the RRC connection setup complete message after message is set up in RRC connection that RNC sends out receiving, therefore, in step 340, RNC judges whether to receive the RRC connection setup complete message from UE.If receive this message, then enter step 350, the RRC connection is finished, and this UE successfully sets up RRC and connects; Otherwise, then enter step 360.
In step 360, RNC judge to retransmit timer and whether reaches default duration, if reach default duration then enter step 370, otherwise then returns step 340, continues to judge whether to receive the RRC connection setup complete message from UE.
Wherein, default duration connects and sets up message to receiving from the required time of the RRC connection setup complete message of UE from sending RRC greater than RNC under the normal condition, to determine that UE does not receive really that RRC connects and sets up message, avoids unnecessary retransmission.Generally speaking, RNC connects and sets up message and be not more than 600 milliseconds (ms) to receiving from the required time of the RRC connection setup complete message of UE from sending RRC, considers the otherness of different UEs, and usually, Preset Time is set to greater than 700ms.
In step 370, RNC judge to retransmit number of times and whether reaches predetermined value, owing to connect when setting up message sending RRC first, the retransmission counter value is 1, subtracts 1 so retransmit number of times for retransmitting Counter Value.If the repeating transmission number of times reaches predetermined value then enters step 380, this RRC connection failure; Otherwise then return step 330, RNC retransmits the RRC connection to this UE and sets up message, simultaneously, starts the repeating transmission timer once more and restarts timing, and retransmission counter is added 1.Present embodiment is set up message by retransmitting the RRC connection according to default duration, improved the RRC connection and set up message by the correct probability that receives of UE, to such an extent as to thereby avoided UE, and then improved RRC and connect and be created as power owing to fail correctly to receive RRC and connect and set up message and have to initiate again RRC and connect the process of setting up.What deserves to be mentioned is that the product of above-mentioned default duration and predetermined value must send the required maximum latency of RRC connection request message once more less than UE after sending RRC connection request message failure.That is to say, under normal conditions, owing to preset duration greater than 700ms, and the maximum latency at the required interval of UE twice transmission RRC connection request message is 2 seconds (s), therefore for the not outer Internet resources of occupying volume of trying one's best, retransmit the predetermined value of number of times and be advisable with 1 time.Because the predetermined value of retransmitting number of times and the product of default duration be less than 2s, thereby realized further reducing the time delay that RRC sets up process improving when the RRC connection is created as power.
Though pass through with reference to some of the preferred embodiment of the invention, the present invention is illustrated and describes, but those of ordinary skill in the art should be understood that and can do various changes to it in the form and details, and without departing from the spirit and scope of the present invention.
Claims (7)
1. a method of setting up the Radio Resource control connection is characterized in that, comprises following steps:
Subscriber equipment sends wireless resource control connection request message to radio network controller, and the connection of Radio Resource control is set up in request;
Described radio network controller returns the Radio Resource control connection to described subscriber equipment and sets up message, if in default duration, do not receive from the Radio Resource control connection foundation of this subscriber equipment and finish message, then retransmit described Radio Resource control connection and set up message, receive to set up until this radio network controller and finish message, or retransmit number of times and reach predetermined value from the described Radio Resource control connection of described subscriber equipment.
2. the method for setting up the Radio Resource control connection according to claim 1, it is characterized in that described default duration is set up message and finished the required time of message to receiving to set up from the described Radio Resource control connection of described subscriber equipment from sending described Radio Resource control connection greater than described radio network controller under the normal condition.
3. the method for setting up the Radio Resource control connection according to claim 2 is characterized in that, described default duration is greater than 700ms.
4. according to each described method of setting up the Radio Resource control connection in the claim 1 to 3, it is characterized in that the product of described default duration and described predetermined value sends the required maximum latency of described wireless resource control connection request message less than described subscriber equipment once more after sending the wireless resource control connection request message failure.
5. the method for setting up the Radio Resource control connection according to claim 4 is characterized in that, described predetermined value is 1.
6. a radio network controller comprises the transceiver module that is used for messaging, it is characterized in that, also comprises to retransmit timer and retransmission counter;
Described repeating transmission timer is used for sending or retransmitting to subscriber equipment at described transceiver module picking up counting when the Radio Resource control connection is set up message, if described receiver module is not received to set up from the Radio Resource control connection of this subscriber equipment and finished message in default duration, then trigger described transceiver module and retransmit described Radio Resource control connection and set up message;
Described retransmission counter is used for counting retransmitting number of times;
When reaching predetermined value or described transceiver module, described retransmission counter receives from the Radio Resource control connection of described subscriber equipment and sets up when finishing message that described transceiver module stops repeating transmission that described Radio Resource control connection is set up message.
7. radio network controller according to claim 6, it is characterized in that the product of described default duration and described predetermined value sends the required maximum latency of described wireless resource control connection request message less than described subscriber equipment once more after sending the wireless resource control connection request message failure.
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| CN101478828B (en) * | 2008-01-04 | 2011-12-21 | 电信科学技术研究院 | Sending method, communication system and base station for downlink scheduling message |
| CN101541093B (en) * | 2008-03-21 | 2013-04-24 | 华为技术有限公司 | Method and device for establishing and maintaining interface connection |
| WO2010075651A1 (en) * | 2008-12-31 | 2010-07-08 | 中兴通讯股份有限公司 | Method and terminal for radio resource connection reestablishment |
| CN101594654B (en) * | 2009-06-18 | 2015-04-01 | 中兴通讯股份有限公司 | Realization method for service link establishment and mobility management sub-layer |
| CN101730022A (en) * | 2009-11-27 | 2010-06-09 | 至德讯通（北京）科技有限公司 | Data transmission method and data transmission device |
| WO2011066687A1 (en) * | 2009-12-04 | 2011-06-09 | 华为技术有限公司 | Method, base station and user equipment for connection reestablishment |
| CN102647803A (en) * | 2011-02-21 | 2012-08-22 | 电信科学技术研究院 | Method, system and equipment of transmitting information |
| CN103260212A (en) * | 2012-02-15 | 2013-08-21 | 鼎桥通信技术有限公司 | Method and system for sending information transmitted in UM or TM mode |
| CN102711063B (en) * | 2012-05-24 | 2014-12-10 | 大唐移动通信设备有限公司 | Radio resource control (RRC) connection setup message transmitting method and device |
| CN104158638A (en) * | 2013-05-13 | 2014-11-19 | 中兴通讯股份有限公司 | Method and system for controlling UE to retransmitting data transmission request, network side equipment and UE |
| CN104469745B (en) * | 2014-11-26 | 2018-05-01 | 大唐移动通信设备有限公司 | The application process and device of a kind of integrity protection parameter |
| CN108347773A (en) * | 2017-01-23 | 2018-07-31 | 普天信息技术有限公司 | The distribution method of SPS resources in a kind of V2X networks |
| CN109245867B (en) * | 2018-08-14 | 2022-09-27 | 深圳壹账通智能科技有限公司 | Message sending method, computer readable storage medium and terminal equipment |
| CN109495916B (en) * | 2018-11-20 | 2022-05-10 | 华为技术服务有限公司 | Communication method and device |
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