CN1984438B - Method and system for establishing connection - Google Patents
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- CN1984438B CN1984438B CN2005101344553A CN200510134455A CN1984438B CN 1984438 B CN1984438 B CN 1984438B CN 2005101344553 A CN2005101344553 A CN 2005101344553A CN 200510134455 A CN200510134455 A CN 200510134455A CN 1984438 B CN1984438 B CN 1984438B
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Abstract
The method comprises: a) terminal sends the update message to the controller of serving radio network; the update message carries the service request; b) the controller of serving radio network sends the service request to the core network; c) the terminal is switch into a private connection state to connect to core network. The system thereof comprises: the terminal comprising a message combination unit for setting the service request in the update message transmitted to the core network; the core network comprising message processing unit for receiving the update message and making service connection for the terminal according the service request; and a controller of serving radio network.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of terminal and exist circuit switching (CS Circuit Switched) to be connected and fast connection establishing method and the system of packet switching (PS Packet Switched) when being connected with network.
Background technology
Wireless trunking communication system is a kind of special mobile radio system or specialized mobile radio system, mainly is that the mobile subscriber for the specialized company of outdoor study and business department provides communication services such as production scheduling and commander's control.Be easy to use, set up the advantages such as quick and good confidentiality of conversing because system has, be widely used in numerous special-purpose command dispatch communications fields such as railway transportation, marine communication, harbor navigating, aviation services, weather forecast, forest, mining area operation, public security, electric power, oil, disaster reliefs.Simultaneously, the government of many countries also for the open license application of trunked communication system network operator, as public access mobile radio system, also provides public service with it except that network operator itself uses.
The professional notion of cluster wireless communication press-and-talk (PTT Push To Talk) comes from intercom, and its user experience occupation mode and intercom are similar---and simple, quick, half-duplex call.The Chinese of the PTT meaning is exactly one by promptly saying, according to the requirement specification of Open Mobile Alliance (OMA Open Mobile Alliance), the call establishment time delay should not surpass 1.6s.Because the user is generally the professional user, big characteristics of the more common mobile communication business of PTT business are exactly that call setup is quick.Existing WCDMA access system (WCDMA) or time-division synchronous CDMA system (TD-SCDMA) are not supported the PTT business, and it is also slower that process is set up in its ordinary call, surpass 4s usually.
In the PTT business, the user need not dialing by preestablishing talk group during conversation, pin the specific button of terminal, just can simultaneously speech be sent to other all members in the group.This scheme can say promptly by button that calling and conversation connection procedure were finished in moment, made called party need not any response and just can answer.Communication process adopts semiduplex mode in this scheme, and a side is when speaking, and other members can only listen, and are not talkative.
The user who uses the PTT business be not basically the same with traditional voice communication be absorbed in make a phone call, but be engaged in other movable in, need listen to group's internal information, and deliver the suggestion of oneself frequently, report situation etc.When on duty, be responsible for the safety management of own institute compass of competency as the security personnel of certain mansion or production base, listen to the situation between the companion simultaneously, make relevant reaction or assistance in case of necessity; And tell the companion with the situation report-back that oneself is found.In such occasion, half-duplex communication mode is very suitable.
The voice call that PTT is professional and traditional replenishes mutually, is respectively applied for different occasions.Along with the development of mobile communication, the trend of public mobile communication network has appearred trunking communicating technology is dissolved into.To mobile phone, the user can select to be suitable for the communication mode of oneself more easily with the PTT business integration.
In the prior art, WCDMA or TD-SCDMA user have 4 kinds of connection status having with network under the situation about being connected, be respectively cell paging channel (CELL_PCH), universal terrestrial access network Acceditation Area paging channel (URA_PCH), cell private channel (CELL_DCH) and cell forward access channel (CELL_FACH).Preceding two states, the user receives only the beep-page message of network through terminal, and does not have the mutual of business datum between the network, and the user who is in this state can be arrived by ICQ very soon, and end cell consumes less simultaneously; Latter two state, the user has the mutual of business datum between terminal and network, and terminal works is at real-time data transmit-receive state.When the user is under the connection status, when having paging to arrive, ICQ user, the user responds paging, changes talking state then over to.
The PTT voice data is walked the PS territory, the call flow when providing the user below and being connected with PS through there being CS to be connected between terminal and the network.After terminal and network have been set up the PS territory and have been connected, when not having data transmit-receive between terminal and network, network does not discharge immediately with all of terminal and is connected, but when terminal does not have data transmit-receive, terminal does not take the resource of wave point, this moment, terminal changed resting state over to, i.e. CELL_PCH or URA_PCH state.Be responsible for the continuing of terminal by wireless access network (RAN Ratio Access Network) this moment, that is to say that core net (CN Core Network) side continues to think to be connected with terminal existence.When CN sent data to user terminal, RAN will initiate the paging of RAN side, and after the terminal response paging, RAN is the user terminal distributing radio resource.
Fig. 1 is that the user is as the terminal called call flow.As can be seen from Fig. 1, when certain business is set up the service GPRS support point (SGSN Serving GPRS Support Node) of message arrival CN side, SGSN judges that user terminal has being connected of PS territory with CN, so directly send data or signaling to this terminal, detailed process is as follows:
S01, CN send data transmission requests to service wireless network controller (SRNC Serving Radio Network Controller);
SGSN judges that user terminal (UE) exists the PS territory to be connected with CN, sends data or signaling message in described connection between the SGSN, and according to the connection status of UE and network, these data or signaling have multiple possibility.
S02, there is the SRNC that is connected to know that UE is in CELL_PCH (or URA_PCH) state at present with UE, can only paging receiving message, SRNC sends paging Class1 message in descending paging channel;
S03, UE send cell update message (if UE is in URA_PCH, what then send is the URA updating message) by Common Control Channel, and message is carried type of message and is designated as page response;
S04, SRNC reply the cell update acknowledge message, and indication UE forwards proprietary connection status to;
S05, UE use direct-sending message to send business request information, as the response to message 1;
S06, authentication ciphering process are finished the process of user identity, authority and encryption of calls;
S07, RAB set up process, set up the carrying of UE to CN;
The service quality (QoS) between UE and the CN is consulted in S08, Packet Data Protocol (PDP Packet Data Protocol) negotiations process;
S09, SIP signalling interactive process are finished the residue handshaking procedure of calling.
As shown in Figure 2, be that RAB sets up schematic flow sheet among the step S07, as can be seen from Fig. 2, wireless access network applying portion (RANAP Radio Access Network Application Part), Node B applying portion (NBAP Node B Application Part) and Radio Resource control (RRC Radio Resource Control) all are layer 3 agreements, and atm adaptation layer 2 (Q.AAL2 ATM Adaptation Layer) is a layer 2 protocol.Layer 2 provides to layer 3 and connects the service of foundation, the connection that layer 3 utilizes layer 2 to set up, and floor 2 belongs to data and connects the road floor.RAB connects to set up at first needs RRC to connect, and secondly network side need be known the class of service of this calling.
In the prior art scheme, when UE existed the PS territory to be connected with network, when calling out the arrival called network, network sent data sending request to called.After SRNC receives this message, initiate called paging, the user forwards connection status to from resting state then at random access channel responses.Such process time delay is bigger.
Summary of the invention
There are the long problem of called subscriber's connection set-up delay in fast connection establishing method and system when the invention provides a kind of terminal and network and existing CS to be connected to be connected with PS in order to solve in the prior art.
The inventive method comprises:
A kind of connection method for building up, terminal exists circuit domain to be connected with packet domain with network and is connected, may further comprise the steps:
A, terminal send cell update message or URA updating message to service wireless network controller, carry service request in the described updating message;
B, service wireless network controller are sent to core net with described service request, and reply the renewal acknowledge message to described terminal;
C, terminal go to proprietary connection status according to the parameter of carrying in the described renewal acknowledge message, and the described business that continues between the core net.
In the described steps A, in the described updating message, be provided with the service request indication information, be used to indicate described updating message, whether comprise business request information.
Before the described steps A, also comprise:
A1, core net send data transmission requests to service wireless network controller;
A2, service wireless network controller send beep-page message to terminal.
In the described steps A, described updating message carries the flow process type identification information, identifies described flow process type.
Described method also comprises step:
D, network side and terminal are carried out the authentication ciphering flow process;
E, core net and terminal are set up RAB.
Described step e further comprises:
E1, core net send RAB to service wireless network controller and set up request;
E2, service wireless network controller send radio bearer to terminal and set up request;
E3, terminal send radio bearer to service wireless network controller and set up response;
E4, service wireless network controller send RAB to core net and set up response.
Described method also comprises step:
F, core net and terminal are carried out the context negotiation flow process.
System of the present invention comprises:
System is set up in a kind of connection, comprises terminal, core net and the service wireless network controller that terminal is managed, and described terminal exists circuit domain to be connected with packet domain with network and is connected,
Described terminal is provided with the message merge cells, is used in the cell update message or the universal terrestrial access network registration area URA updating message that send to core net service request being set;
Described core net is provided with message processing unit, is used for the updating message that receiving terminal sends, and according to described service request, is the described business of final connection.
Described terminal also is provided with the flow process type identification unit is set, and is used in the updating message to the service wireless network controller transmission flow process type identification information being set.
Described terminal also is provided with the service request indication information unit is set, and is used in the updating message to the service wireless network controller transmission service request indication information being set.
The present invention program carries business request information in updating message, SRNC therefrom obtains business request information and directly sends to CN by direct-sending message, can reduce the call delay of 2 message like this, promptly saved the time delay of upgrading affirmation and direct-sending message, make the present invention in that existing equipment is changed under the very little situation, obtain calling establishment time delay faster.
Description of drawings
Fig. 1 is called subscriber's connection building process schematic diagram in the prior art;
Fig. 2 sets up schematic flow sheet for called subscriber RAB in the prior art;
Fig. 3 is the embodiment of the invention 1 calling subscriber's connection building process schematic diagram;
Fig. 4 sets up the system configuration schematic diagram for the embodiment of the invention 2 called subscribers connect;
Fig. 5 is a system configuration schematic diagram of the present invention.
Embodiment
Below in conjunction with Figure of description the specific embodiment of the present invention is described.
Cell update message or URA updating message are the responses to RAN, and service request is the response to CN.Directly exist with UE with SRNC under the URA_PCH state and be connected but be in CELL_PCH,, reduce by 2 time delays that interacting message causes so these two message can be merged.
It is strict like that the setup delay requirement of ordinary call does not have PoC to call out, and ordinary call simultaneously is not owing to there being the IMS layer, so the time delay of calling out does not have the length of PoC yet.So ordinary call can be finished continuing of calling according to the prior art flow process also can be according to the flow process after the following optimization.The user can carry indicating bit in cell update message or URA updating message, points out this calling employing message merging or does not adopt message to merge.Network need to judge whether the business request information of carrying in demodulation cell update message or the URA updating message thus.
Embodiment 1: the user is as the scheme of caller.
As shown in Figure 3, be the schematic flow sheet of user of the present invention during as caller, as seen from the figure, mainly may further comprise the steps:
S11, UE send cell update message to SRNC, carry service request in the described cell update message.
When the user initiated certain call business as caller, UE judged whether this calling needs to adopt message to merge, and adopts message to merge at this, and then UE carries business request information in updating message, and the indicating bit indication comprises business request information.
Updating message among the step S11, if the user is in CELL_PCH, what then send is cell update message, if the user is in URA_PCH, what then send is the URA updating message.What present embodiment adopted is cell update message.
Cell update message among the step S11 can send in dedicated channel.
In this process, at first use UE to send the cell update request in Random Access Channel (RACH Random Access CHannel), this request message is very little, tell network its to carry out cell update, network can be at available channel of forward access channel (FACH Forward Access Channel) notice UE, this channel can be dedicated channel (DCH Dedicated CHannel) or Uplink Shared Channel (USCH Uplink Shared CHannel), send cell update message at the channel that distributes, can send described business request information this moment.
After S12, SRNC obtain business request information, service request is sent to CN by direct-sending message.
After SRNC receives described request message, described service request is passed through CN, handle the related service request by CN.
S13, SRNC reply the cell update acknowledge message to UE, and UE forwards proprietary connection status to.
When SRNC passed through CN with described service request, SRNC replied the cell update acknowledge message to UE, in the cell update acknowledge message, carries relevant parameter, and UE forwards proprietary connection status to according to described sub-district acknowledge message.This proprietary connection status is the connection of UE calcaneus rete network user face.
S14, authentication ciphering process are finished the process of UE identity, authority and encryption of calls.
When UE receive upgrade to confirm after, can whether initiate the encrypted authentication process according to the connection situation decision of UE, between UE and Node B, between Node B and the SRNC and carry out relevant encrypted authentication process between SRNC and the CN.
This encrypted authentication is controlled by network side, and purpose is to determine user's identity, has multiple situation can determine to carry out again encrypted authentication, for example: do not have for a long time that authentication ciphering and free of data transmit, the business of request changes, request to the end subscriber variation etc.Whether step S14 can decide to carry out according to specific circumstances.
S15, RAB set up process, set up the carrying of UE to CN;
Whether initiate RAB according to the connection situation decision of UE and set up process, if desired, set up RAB, can may further comprise the steps according to Fig. 3:
S151, CN send RAB to SRNC and set up request message;
S152, SRNC send radio bearer (RB Radio Bearer) to UE and set up request message;
S153, UE send RB foundation to SRNC and finish message;
S154, SRNC send RAB to CN and set up response message.
Whether also be an optional scheme, if former RAB discharges, then need again RAB to set up if needing RAB to set up process.
The service quality (QoS) between UE and the CN is consulted in S16, PDP negotiations process.
Whether the connection situation decision according to UE initiates the PDP negotiations process, if desired, consults QoS between CN and UE.
Whether needing the PDP negotiations process, also is selectable process, after type of service changes, need carry out PDP again and consult.Type of service changes the business that refers to the front and compares, and will consult PDP again when requirements such as data volume, delay, error rate change.
S17, SIP signalling interactive process are finished the residue handshaking procedure of calling.
So far, CN can be the UE described service request that continues, and the SIP Signalling exchange can be carried out in UE and opposite end.
Embodiment 2: the user is as called scheme.
In embodiment 2, the user receives the data transmission requests that CN sends as called.Terminal is in the URA_PCH state at present, can only paging receiving message, and SRNC sends paging Class1 message in descending paging channel.
As shown in Figure 4, be user of the present invention as called schematic flow sheet, as seen from the figure, mainly may further comprise the steps:
S21, CN send data transmission requests to SRNC.
S22, SRNC send paging Class1 message in descending paging channel.
There is the SRNC that is connected to know that UE is in CELL_PCH (or URA_PCH) state at present with UE, can only paging receiving message, SRNC sends paging Class1 message in descending paging channel.
S23, UE send cell update message to SRNC, carry service request in the described cell update message.
After S24, SRNC obtain business request information, service request is sent to CN by direct-sending message.
S25, SRNC reply the cell update acknowledge message to UE, and UE forwards proprietary connection status to.
S26, authentication ciphering process are finished the process of UE identity, authority and encryption of calls.
S27, RAB set up process, set up the carrying of UE to CN;
The QoS between UE and the CN is consulted in S28, PDP negotiations process.
S29, SIP signalling interactive process are finished the residue handshaking procedure of calling.
From embodiment 1 and embodiment 2 as can be seen, the user who is in CELL_PCH (or URA_PCH) state do caller and called flow process basic identical, difference be as called call flow many beep-page message.
The invention allows for a kind of quick connection and set up system, comprise CN, UE and the SRNC that UE is managed, UE exists CS to be connected with PS with CN and is connected.
The present invention is provided with the message merge cells on UE, be used in the updating message that sends to CN service request being set;
On CN, be provided with message processing unit, be used to receive the updating message that UE sends, and according to described service request, be the UE described business that continues.
The present invention also is provided with the flow process type identification unit is set on UE, is used in the updating message to the SRNC transmission flow process type identification information being set.What can identify that this called subscriber connects that method for building up adopts by this flow process type identification information is flow process after optimizing or common flow process, uses with convenient.
The present invention also is provided with the service request indication information unit is set on UE, is used in the updating message to the SRNC transmission service request indication information being set.Be used to indicate described updating message, whether comprise business request information.
The present invention program carries business request information in updating message, SRNC therefrom obtains business request information and directly sends to CN by direct-sending message, can reduce the call delay of 2 message like this, promptly saved the time delay of upgrading affirmation and direct-sending message, make the present invention in that existing equipment is changed under the very little situation, obtain calling establishment time delay faster.
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 (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005101344553A CN1984438B (en) | 2005-12-15 | 2005-12-15 | Method and system for establishing connection |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005101344553A CN1984438B (en) | 2005-12-15 | 2005-12-15 | Method and system for establishing connection |
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| CN1984438A CN1984438A (en) | 2007-06-20 |
| CN1984438B true CN1984438B (en) | 2010-10-06 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101448305B (en) * | 2008-03-05 | 2010-12-08 | 中兴通讯股份有限公司 | Method for circuit domain paging in a plurality of packet domain networks |
| WO2012149788A1 (en) * | 2011-09-30 | 2012-11-08 | 华为技术有限公司 | Service establishment method and system, radio network controller and user terminal |
| CN108124245B (en) * | 2016-11-25 | 2021-05-14 | 北京小米移动软件有限公司 | Processing method, generating method and device for paging signaling message |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2004064342A1 (en) * | 2003-01-13 | 2004-07-29 | Samsung Electronics Co., Ltd. | Mobility method for ue in rrc connected mode |
| EP1494494A2 (en) * | 2003-07-02 | 2005-01-05 | High Tech Computer Corp. | Inter-RAT handover to UTRAN with simultaneous PS and CS domain services |
| CN1592167A (en) * | 2003-08-25 | 2005-03-09 | 北京三星通信技术研究有限公司 | Method for supporting MBMS backward compatibility |
| CN1596000A (en) * | 2003-09-08 | 2005-03-16 | 华为技术有限公司 | A method for dynamically updating group information in cluster service |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004064342A1 (en) * | 2003-01-13 | 2004-07-29 | Samsung Electronics Co., Ltd. | Mobility method for ue in rrc connected mode |
| EP1494494A2 (en) * | 2003-07-02 | 2005-01-05 | High Tech Computer Corp. | Inter-RAT handover to UTRAN with simultaneous PS and CS domain services |
| CN1592167A (en) * | 2003-08-25 | 2005-03-09 | 北京三星通信技术研究有限公司 | Method for supporting MBMS backward compatibility |
| CN1596000A (en) * | 2003-09-08 | 2005-03-16 | 华为技术有限公司 | A method for dynamically updating group information in cluster service |
Non-Patent Citations (1)
| Title |
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| EP 1494494 A2,全文. |
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