CN1917701A - Method for realizing quick establishing a call, and quick switching cells through leaving resources behind in advance - Google Patents
Method for realizing quick establishing a call, and quick switching cells through leaving resources behind in advance Download PDFInfo
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- CN1917701A CN1917701A CNA2005100931945A CN200510093194A CN1917701A CN 1917701 A CN1917701 A CN 1917701A CN A2005100931945 A CNA2005100931945 A CN A2005100931945A CN 200510093194 A CN200510093194 A CN 200510093194A CN 1917701 A CN1917701 A CN 1917701A
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Abstract
The method comprises: the network side reserves VoIP channel resources for the calling user and called user; when calling user initiates a call, it activates the VoIP channel resources reserved for calling user; the calling user sends call request message to PTT server through the VoIP channel resources reserved for the calling user; according to the information of called user, the PTT server activates the VoIP channel resources reserved for the called user, which is allocated to the called user; establishing call connection between both calling and called users to make phone call.
Description
Technical field
The present invention relates to wireless communication field, particularly a kind of method that realizes calling out foundation fast and sub-district switching by resource reservation.
Background technology
Present 3-G (Generation Three mobile communication system) comprises: TD-SCDMA (Time DivisionSynchronous Code Division Multiple Access, TD SDMA), WCDMA (Wideband Code Division Multiple Access, Wideband Code Division Multiple Access (WCDMA)), CDMA2000 (Code Division Multiple Access 2000, code division multiple access inserts 2000) etc., those systems adopt circuit mode or grouping VoIP (Voice Over IP, IP-based voice) mode to call out connection usually.Wherein, the call establishment of 3G system grouping VoIP as depicted in figs. 1 and 2, wherein Fig. 1 is the Calling Side call establishment, comprising:
Step s101, the calling subscriber is at CCCH (Common Control Channel, public control channel) goes up to RNC (Radio Net Controller, radio network controller) sends RRC connection request (RRCConnection Request) message, initiate RRC (Radio Resource Control, Radio Resource control) connect the process of setting up, the major parameter that sends in this process comprises: calling subscriber identification (Initial UEIdentity) and call setup reason (Establishment cause), the calling subscriber informs the reason of its identity of RNC and access network by those message.
After step s102, RNC receive RRC connection request message, send the RRC connection to the calling subscriber and set up message (RRC Connection Setup).
If RNC allows calling subscriber's access network, then on the CCCH channel, send RRCConnection Setup message to the calling subscriber, RNC indicates the state of its access network to the calling subscriber by this message.This message is obtained by the signal resource layoutprocedure, comprises: the physic channel information and the transmitting channel information that are used to set up the modern connection of aerial letter that RNC distributes to the calling subscriber, and such as setting up information such as the employed frequency of the modern channel of letter, code channel and time slot.
Step S103, calling subscriber receive that the connection of RNC sets up message, reply RRC connection setup complete message (RRC Connection Setup Complete).
After the calling subscriber receives the RRC Connection Setup message of expectation, connect required physical channel and transmission channel according to the information configuration aerial signaling that carries in the message, and by up DCCH (Dedicated Control Channel, Dedicated Control Channel) sends RRC ConnectionSetup Complete message to RNC, finish calling subscriber and RNC foundation at wave point transmitting signaling link.
Step s104, after RRC connects the foundation end, the calling subscriber sends initial direct-sending message (Initial DirectTransfer) to RNC on the Uu interface, this message comprises: business request information (CM Service Request), user identification code, KSI and the CN relam identifier etc. of initial Non-Access Stratum (NAS, NonAccess Straum).
Step s 105, and after the signal resource layoutprocedure, the signaling that RNC is initialised to SGSN (Service GPRSSupporting node, Serving GPRS Support Node) connects, and sends an initial user message (Initial UE Message) to SGSN.Its major parameter comprises: NAS PDU, Flow indicator.RNC comes the content of storage information element flow sign (Flow Identifier) for this special flow uses calling subscriber's context.Core network domain sign (CN Domain Identity) in the described information element and Servicedescriptor select route for NAS message.
Step s106, SGSN sends service to the calling subscriber and accepts (Service Accept) message, being connected of SGSN and calling subscriber finished in indication, if Service Request can not be accepted, then SGSN sends service-denial (Service Reiect) message to the calling subscriber.
Step s107, the calling subscriber sends to SGSN and activates the PDP Context request message, be ActivatePDP (in the Packet Data Protocol context, packet data protocol) Context Request, comprise in this message: NSAPI, TI, PDP Type, PDP Address, Access Point Name, QoS Requested, PDP Configuration Options.Wherein, the calling subscriber uses the indication of PDP Address parameter to need to use static PDP address or dynamic PDP addresses.If this field is empty, then show dynamic PDP addresses of its hope application.The calling subscriber uses APN (Access Point Name, APN) to select the reference point of a specific external network of sign and/or selects a kind of service.APN is used for identifying the logical name that outside PDN (Packet Data Network, Packet Data Network) and/or user wish certain service of connecting.The QoS profile that QoS Request parameter instruct MS (Mobile Station, portable terminal) is wished.PDP Configuration Options is used for from GGSN (Gateway GPRS Support Node, Gateway GPRS Support Node) request PDP configuration parameter, this parameters, transparent pass through SGSN.
By checking that the signatory record of PDP Type, PDP Address, APN and PDP Context that the calling subscriber provides detects the validity that SGSN verifies message.If do not have the GGSN address to derive or SGSN thinks that Activate PDP Context Request is illegal, then SGSN will refuse the PDP context activation request.If the GGSN address can be derived, then SGSN is TEID of PDP Context generation of this request.If MS asks a dynamic address, SGSN will allow GGSN distribute.SGSN can come the QoS attribute of limit request according to its ability with when preload, also can come the QoS attribute of limit request according to signatory QoSprofile.
Step s108, SGSN send to the GGSN that selects and produce PDP Context request (Create PDPContext Request) message, and this message comprises: PDP Type, PDP Address, Access PointName, QoS Negotiated, TEID, NSAPI, MSISDN, Selection Mode, ChargingCharacteristics, Trace Reference, Trace Type, Trigger Id, OMC Identity, PDPConfiguration Options.Wherein, the APN parameter is the NetworkIdentifier part of APN selected in SGSN, if the request dynamic address, then PDP Address parameter will be changed to sky, GGSN can use APN to find a particular outer network, also may activate the service of this APN.Selection Mode parameter indicates SGSN what selects this APN according to: the APN that the APN of signatory APN, MS request or SGSN select.GGSN is to accept or refuse can use Selection Mode parameter in the current activation in decision.
Step s109, GGSN sends generation PDP Context response (Create PDP ContextResponse) message to SGSN and responds.
Step s110, SGSN sends RAB request for allocation (RAB AssignmentRequest) message to RNC, and request RNC is one or more RAB (Radio AccessBearer, RAB) for the calling subscriber sets up.In setting up the message of RAB, this request comprises QoS parameters such as RAB ID, NAS indicate synchronously, RAB parameter, user plane information, transport layer information, so that RNC distributes rational service resources according to these parameters to the calling subscriber.
After step s111, RNC finish the traffic channel configuration of Iu interface, on the DCCH channel, set up (Radio Bearer Setup) message and distribute the traffic channel information of Uu interface to the calling subscriber by radio bearer.Described RB Setup message mainly has the physic channel information and the transmitting channel information that are used for the air traffic connection that RNC distributes to the calling subscriber.
Step s112, after the calling subscriber receives RB Setup message, according to the parameter configuration Traffic Channel of carrying in the message, and after finishing new configuration, finish (Radio Bearer Setup Complete) message informing RNC by the foundation of DCCH channel transmission radio bearer.
Step s113, RNC has assigned the RAB that the calling subscriber carries out by RAB assignment response (RAB Assignment Response) message informing SGSN.
Step s114, SGSN send to the calling subscriber and activate PDP Context acceptance (Activate PDPContext Accept) message, and the calling of Calling Side connects the process of setting up and finishes.So far, the calling subscriber can transmit business information such as speech on the Traffic Channel of new configuration.
In above-mentioned steps, step s101 can be summarised as to step s103 and set up caller RRC connection procedure; Step s104 is summarised as the PDP Context process of setting up caller GGSN to step s114.
Callee side is called out and is connected the process of setting up, as shown in Figure 2, comprise: set up the called subscriber connection (from step s201 to step s207), set up the called subscriber and connect (from step s208 to step s218) to the PDP Context of GGSN, this process is identical with above-mentioned calling subscriber's execution in step, repeats no more herein.
In the packet domain VoIP of 3G system, there are some urgent calls or to the special call services of call set-up time sensitivity, for example PTT (Push-To-Talk) business.This business refers to realize the function of similar intercom on wireless terminal, saying should be PoC (Push to talk on Cellular) technology more accurately, and wireless terminal user is as long as just can carry out the conversation of one-to-many with the people in the predefined group by next dedicated array of keys.This business realizes calling and called user's session by ptt server on the basis that above-mentioned packet domain VoIP mode is called out.The calling establishment time delay of this business requires: under the same switch, initial call should be not more than 1 second settling time, and PTT seizes the time less than 500 milliseconds.
And the time delay of the whole call setup that the packet domain VoIP mode of 3G system is called out is Calling Side signaling bear setup delay (the step s101 among Fig. 1 is to step s103 required time), Calling Side service bearer setup delay (step S104 is to step S114 required time among Fig. 1), paging time delay (ptt server search called subscriber's time), callee side signaling bear setup delay (the step s201 among Fig. 2 is to step s207 required time), (the step s115 among Fig. 1 is to step s117 for callee side service bearer setup delay (the step s208 among Fig. 2 is required to step s218) and calling and called side session establishment time delay; Step s219 among Fig. 2 is to step s221) sum, this summation time delay does not satisfy far away and calls out the requirement of setting up fast greater than 5s.
In addition, in the process that switch the Intra-RNC sub-district, also there is long defective switching time.Concrete handoff procedure as shown in Figure 3, step s301, radio network controller (RNC) starts direct-cut operation according to the measurement report or the other reasons of user or Node B (former Serving cell); Step s302, radio network controller utilize the NBAP agreement to send wireless connections to target serving district and set up request (Radio LinkSetup Request) message; Step s303, target serving district is utilized the NBAP agreement to send wireless connections to radio network controller and is set up response (Radio Link Setup Response) message; Step s304 sets up Data-carrying with ALCAP (Access Link Control Application Protocol) by the Iub mouth; Step s305, radio network controller sends downlink synchronization message to target serving district; Step s306, target serving district sends uplink synchronisation message to radio network controller; Step s307, radio network controller sends physical channel at the DCCH channel and reconfigures (Physical Channel Reconfiguration) message to the user, make the user carry out direct-cut operation, this message has comprised the P-CCPCH information of target serving district, the resource distribution of new Radio Link, as spreading code, time slot etc., the transmitted power and the last line time that have also comprised the user simultaneously shift to an earlier date control information; After step s308, user receive Physical ChannelReconfigration message, calculate emission timing, dispose new physical channel in target serving district; Step s309, former Serving cell detects the radio link failure with this user, sends Radio Link Failure and indicates to radio network controller; Step s310, user send physical channel and reconfigure and finish (Physical Channel Reconfigration Complete) message to radio network controller on new DCCH, recover transmission then; Step s311, radio network controller sends wireless connections removal requests (Radio Link Delete Request) to former Serving cell; Step s312, former Serving cell sends wireless connections deletion response (Radio link Delete Response) message to radio network controller; Step s313 is by the bearer context for data transmission of ALCAP agreement release Iub mouth; Radio network controller discharges Radio Link and the transmission bearer of this user at former Serving cell.For normal Intra-RNC minizone handoff procedure, radio network controller need be set up Radio Link and corresponding transmission bearer at Iub interface for this user at Target cell, could this user be switched by sending Physical Channel Reconfigration message then to this user.
Because in cell switch process, setting up radio network controller and the link of Target cell, to be connected time delay also long, can cause signal transmission quality quality reduction in the switching of sub-district.
Summary of the invention
The problem to be solved in the present invention provides a kind of the calling by the resource reservation realization and sets up fast and the sub-district fast switching method, can't realize the defective that calling is set up fast and switch fast the sub-district at particular service to overcome prior art.
For addressing the above problem, the invention provides a kind of method of setting up fast by resource reservation realization calling, may further comprise the steps:
A, reserve the channel resource of transmission VoIP speech for calling subscriber and called subscriber at network side;
B, when the calling subscriber makes a call, activate the described channel resource of reserving transmission VoIP speech for the calling subscriber;
C, calling subscriber to PTT ptt server transmission call request information, comprise called user information in this information by the described channel resource of reserving transmission VoIP speech for the calling subscriber;
D, PTT ptt server are according to the called user information calling called subscriber;
E, activate describedly, and distribute to the called subscriber for the called subscriber reserves the channel resource that transmits the VoIP speech;
F, calling subscriber and called subscriber call out and are connected foundation, converse.
Described step B or step e by make the user from CELL_PCH transition between states to the CELL_DCH state, activate the channel resource of described reservation transmission VoIP speech.
To the CELL_DCH state, the channel resource that activates described reservation transmission VoIP speech further may further comprise the steps from CELL_PCH transition between states:
B11, triggering cell renewal process;
The channel resource of B12, radio network controller (RNC) configuration transmission VoIP speech;
The channel resource configuring condition that B13, radio network controller (RNC) notify the user to transmit the VoIP speech;
B14, sub-district and user notify radio network controller (RNC) sub-district escalation process to finish respectively, realize the user from CELL_PCH transition between states to the CELL_DCH state.
To the CELL_DCH state, the channel resource that activates described reservation transmission VoIP speech further comprises from CELL_PCH transition between states:
B21, radio network controller (RNC) are the channel resource that transmission VoIP speech is satisfied in each sub-district pre-configured at least one;
B22, triggering cell renewal process;
The channel resource of the transmission VoIP speech that RNC of B23, RNC activation is pre-configured;
The channel resource configuring condition that B24, RNC notify the user to transmit the VoIP speech;
B25, sub-district and user notify RNC sub-district escalation process to finish respectively, realize the user from CELL_PCH transition between states to the CELL_DCH state
When using the channel resource of default transmission VoIP speech, the user resets the channel resource of at least one transmission VoIP speech, guarantees that there is required preset channel resource in the user when initiating the VoIP business.
Described triggering cell renewal process is to realize by the cell update message that sends radio resource control RRC on public control channel CCCH.
The channel resource of the described pre-configured transmission VoIP speech of described step B23 is to activate by newly-increased NBAP message Radio Link Active Indication.
The channel resource of the described transmission of steps A VoIP speech comprises: satisfy the PDP Context that the VoIP speech requires between the signaling Iu resource between radio network controller (RNC) and the SGSN, professional Iu resource and SGSN and the GGSN.
The present invention also provides a kind of and has reserved the method for accelerating signaling and service resources assignment by the sub-district, may further comprise the steps:
The channel resource of transmission VoIP speech between a, reservation radio network controller (RNC) and the sub-district;
B, triggering cell renewal process;
The channel resource of the transmission VoIP speech between c, the described reservation radio network controller (RNC) of activation and the sub-district;
The channel resource configuring condition that d, radio network controller (RNC) notify the user to transmit the VoIP speech;
E, sub-district and user notify the RNC cell updating course to finish respectively.
The present invention also provides a kind of and has reserved the cell switching method of accelerating signaling and service resources assignment by the sub-district, may further comprise the steps:
(11), be reserved in channel resource between Target cell and the radio network controller (RNC);
(12), when radio network controller (RNC) starts the sub-district and switches, give the user with described channel reservation resource allocation;
(13), the user passes through described channel reservation resource switch to Target cell.
(14) former Serving cell detects the radio link failure with this user, sends Radio Link Failure and indicates to RNC;
(15) user finishes by the physical channel notice RNC physical channel configuration of new configuration, recovers transmission simultaneously;
(16) RNC discharges Radio Link and the transmission bearer of this user at former Serving cell.
The described channel resource of step (11) comprises: Radio Link and corresponding Iub interface transmission bearer.
Step (12) RNC before sends physical channel to the user and reconfigures message, described physical channel reconfigures message and comprises: the P-CCPCH information of Target cell, the resource allocation information of Radio Link, user's transmitted power and last line time shift to an earlier date control information, and the resource allocation information of described Radio Link comprises: configuration spreading code and configuration time slot.
Compared with prior art, the present invention has the following advantages:
The present invention to the resource of reserving transmission VoIP speech between the GGSN for the user, just in signaling Iu resource, the professional Iu resource reserved between RNC and the SGSN in logic, and satisfies the PDP Context of VoIP speech requirement at RNC for the user between SGSN and the GGSN.Therefore, reduced the RRC that sets up calling/called user and connected, set up the time delay of calling/called user to the PDP Contextd of GGSN.
Further, the present invention reserves by local resource, reduced the time delay (just activating the time delay of reserved resource) of transition between states from CELL_PCH transition between states to the CELL_DCH state, accelerate the method for signaling, service resources assignment, save the time delay of the resource distribution process in the transition between states process.
Further, when RNC is the X in the N bar resource of each cell configuration (after X＜N) bar is distributed to the user, RNC should rebulid Z, and (the bar resource of Z≤X) can guarantee can obtain required resource immediately when the user initiates the VoIP business under the situation that power system capacity allows.
Further, when RNC (after X＜N) bar is distributed to the user, remains the N-X bar for the resource of using immediately in the sub-district, as Z (after Z≤X) the bar user uses for the X in the N bar resource of each cell configuration, for the surplus N-X+Z bar of the resource of using immediately, simplified implementation in the sub-district.
Further, in Intra-RNC minizone handoff procedure based on the local resource reservation mode, RNC is by a pre-configured resource in the newly-increased NBAP message Radio Link Active Indication activation Target cell, and send this resource to user by the interface message of eating dishes without rice or wine, set up Radio Link for this user and accordingly in the time of the transmission bearer of Iub interface to save RNC at Target cell, so can accelerate handoff procedure.
Description of drawings
Fig. 1 is the Calling Side call setup flow chart of 3G system grouping VoIP mode in the prior art;
Fig. 2 is the callee side call setup flow chart of 3G system grouping VoIP mode in the prior art;
Fig. 3 is switching flow figure in sub-district in the prior art;
Fig. 4 adopts the grouping voip call of resource reservation mode to set up flow chart among the present invention;
Fig. 5 is the flow chart of a kind of user from PCH transition between states to the DCH state among the present invention;
Fig. 6 is the flow chart of another kind of user from PCH transition between states to the DCH state among the present invention;
Fig. 7 is the sub-district switching flow figure that the present invention adopts the local resource reservation mode.
Embodiment
Below we will be in conjunction with the accompanying drawings, optimum implementation of the present invention is described in detail.At first it is to be noted, the implication of the term of using among the present invention, words and claim can not only only limit to its literal and common implication and go to understand, also comprise the implication and the notion that into conform to technology of the present invention, this is because we are as the inventor, to suitably provide the definition of term, so that the most appropriate description is carried out in our invention.Therefore, the configuration that provides in this explanation and the accompanying drawing is first-selected embodiment of the present invention, rather than will enumerates all technical characteristics of the present invention.We will recognize to also have the various equivalent scheme or the modifications that can replace our scheme.
The present invention at first reserves to resource between the PTT Server user's (comprising calling subscriber and called subscriber): caller/called subscriber is in the PCH state after registering, this moment, user for SGSN was in connection status, therefore, as long as to the resource of reserving transmission VoIP speech between the GGSN for the user, that is: satisfy the PDP Context that the VoIP speech requires between in logic signaling Iu resource, professional Iu resource, SGSN and the GGSN between reservation RNC and the SGSN at RNC.Adopt the voip call of resource reservation mode to set up process as shown in Figure 4, comprising:
Step s401, after the calling subscriber pressed the PTT button, network side activated the described channel resource of reserving transmission VoIP speech for the calling subscriber; At this moment, the calling subscriber from CELL_PCH transition between states to the CELL_DCH state; Up during described CELL_PCH state do not have a transfer of data, and network can only come this user of paging by PCCH; During described CELL_DCH state, UTRAN distributes a DPCH for the user on the uplink and downlink link, and according to current Active Set, determine the position of user on the Serving cell rank, and the user can use dedicated transmission channel, down link, up link to share transmission channel, and the combination of these transmission channels.
Step s402, calling subscriber send SIP call request (SIP INVITE) message and give ptt server, comprise called subscriber's sign in this message.
Step s403, ptt server transmits the PDU data to the called subscriber, and owing to the dedicated channel between called subscriber and the RNC does not exist, so these PDU data are sent to radio network controller (RNC).
Step s404, radio network controller (RNC) is initiated the paging to the called subscriber, promptly sends the paging kind of message.
Step s405, called subscriber activate described for the called subscriber reserves the channel resource that transmits the VoIP speech, trigger from CELL_PCH transition between states to the CELL_DCH state.
Step s406, ptt server sends SIP call request (SIP INVITE) message to called subscriber.
Step s407, the called subscriber sets up by returning SIP call setup success (SIP 200OK) message authentication session.
Step s408, ptt server return SIP call setup success (SIP 200OK) message authentication session and set up successfully.
Step s409, the calling subscriber begins speech to the called subscriber.
The time delay of the whole call setup that above-mentioned packet domain VoIP mode is called out is: Calling Side transition between states time delay (step s401)+paging time delay (step s402 is to step s404)+callee side transition between states time delay (step s405)+calling and called side session establishment time delay (step s406 is to step s408), compared with prior art, simplified and set up the channel step of connecting between RNC and the GGSN, so calling establishment time delay reduces greatly.
From top description as can be known, adopt the user mainly to concentrate on calling/called user side transition between states time delay to the time delay of resource reservation mode call establishment between the ptt server.Wherein, a kind of calling/called user side transition between states time delay process comprises as shown in Figure 5:
Step 501, the user triggers former because the cell updating course of transmitting uplink data by send RRC upgrading message (Cell Update) on CCCH.
After step 502, radio network controller (RNC) are received CELL UPDATE message, send NBAP message (Radio Link Setup Request, request is set up in wireless connections) to Serving cell (Node B), requesting node B sets up DCH for the user.
Step 503, Node B begin to receive describes (Start RX description), and after the Resources allocation, by NBAP message (Radio Link Setup Response, response message is set up in wireless connections) response radio network controller (RNC).
Step 504, radio network controller (RNC) initiate to set up the process of setting up of Iub bearer context for data transmission by the ALCAP agreement.
Step 505 is to step 506, Node B and radio network controller (RNC) are by utilizing mutual down-going synchronous (Downlink Synchronisation) of DCH Frame Protocol (DCH-FP) and uplink synchronous (Uplink Synchronisation) message, and then set up synchronously for the Iub Data-carrying, then, Node B begins the transmission direction description.
Step 507, radio network controller (RNC) send RRC message (Cell UpdateConfirm, upgrading is confirmed) notice user resources configuring condition on CCCH.
Step 508 is after Node B is finished uplink synchronous, by NBAP message (Radio Link RestoreIndication, wireless connections recover indication) notice radio network controller (RNC).
Step 509, the user sends RRC message (PHYSICAL CHANNELRECONFIGURATION COMPLETE on DCCH, physical channel reconfigures to be finished) to radio network controller (RNC), notice RNC Cell Update process is finished, at this moment, the user finishes the transition between states process from CELL_PCH transition between states to the CELL_DCH state.
The time delay of as can be seen from the figure transition between states process comprises that the layoutprocedure (step 502 is to step 506) of business, signal resource adds the reciprocal process of eating dishes without rice or wine (step 501,507 and 509).For the speed that further speed call is set up, must simplify calling and called user side transition between states process.For this reason, the present invention proposes another kind of calling/called user side transition between states method, and this method is reserved by local resource and added express letter the present, service resources assignment realization, and to save the time delay of the resource distribution process in the transition between states process, flow process as shown in Figure 6.
Step s601, the user triggers former because the cell updating course of transmitting uplink data by send RRC message (Cell Update, upgrading message) to radio network controller (RNC) on CCCH.
Step s602, radio network controller (RNC) activates a pre-configured resource by newly-increased NBAP message (Radio LinkActive Indication, wireless connections activate indication).
Step s603, radio network controller (RNC) send RRC message (CellUpdate Confirm, upgrading is confirmed) notice user resources configuring condition to the user on CCCH.
Step s604, the user sends RRC message (PHYSICAL CHANNEL RECONFIGURATION COMPLETE to radio network controller (RNC) on DCCH, physical channel reconfigures to be finished) to radio network controller (RNC), the notice escalation process is finished, at this moment, the user finishes the transition between states process from CELL_PCH transition between states to the CELL_DCH state.
Transition between states process time delay based on the local resource reservation mode is: the preset resource active process adds the reciprocal process of eating dishes without rice or wine, and has saved the time delay of original resource allocation process, has therefore shortened the time delay of transition between states process.
The implementation strategy method of the described resource reservation of Fig. 6 has following two kinds:
A kind of is dynamic resource reservation strategy: RNC satisfies the requirement of VoIP speech for the pre-configured N bar in each sub-district signaling, service resources, when the user has the VoIP service request, RNC activates a pre-configured resource by newly-increased NBAP message " Radio Link Active Indication ", and send this resource to user by the interface message of eating dishes without rice or wine (this place is a Cell Update Confirm message), carry out the time delay of signaling, service resources layoutprocedure to save RNC and Node B.After the user used resource, this resource discharged by normal dispose procedure.When RNC is the X in the N bar resource of each cell configuration (after X＜N) bar is distributed to the user, RNC should rebulid Z (the bar resource of Z≤X), the reconstruction principle of Z is: under the situation that power system capacity allows, guarantee can obtain required resource immediately when the user initiates the VoIP business.
Another kind is fixed resource reservation policy: RNC satisfies the requirement of VoIP speech for the pre-configured N bar in each sub-district letter the present, a service resources, when the user has the VoIP service request, RNC activates a pre-configured resource by newly-increased NBAP message " Radio Link Active Indication ", and send this resource to user by the interface message of eating dishes without rice or wine (this place is a Cell Update Confirm message), carry out the time delay of signaling, service resources layoutprocedure to save RNC and Node B.After the user uses this resource, when channel discharges, do not use present channel deletion message, increase the message of a channel deexcitation again, make this resource distribution not discharge.Promptly, (after X＜N) bar was distributed to the user, for the surplus N-X bar of the resource of using immediately, (after Z≤X) the bar user used, the resource for use immediately in the sub-district remained the N-X+Z bar as Z in the sub-district for the X in the N bar resource of each cell configuration as RNC.Such implementation is fairly simple.
Reserve to accelerate the method for resource assignation by local resource, be applicable to that all need carry out the process of resource distribution, for example: switch, the voice call traffic of circuit mode etc.; The time delay that this method need be carried out the resource distribution process for quickening switching, circuit mode voice service etc. all is beneficial to.Fig. 7 is based on the Intra-RNC minizone handoff procedure of local resource reservation mode
Step s701, radio network controller (RNC) starts direct-cut operation according to the measurement report or the other reasons of user or Serving cell; Step s702, radio network controller (RNC) is by newly-increased NBAP message (Radio Link Active Indication Request, wireless connections activation indication request) activates a pre-configured resource in the target serving district, and send this resource to user by the interface message of eating dishes without rice or wine (this place is a PHYSICAL CHANNEL RECONFIGURATION message), set up Radio Link for this user and accordingly in the time of the transmission bearer of Iub interface to save radio network controller (RNC) in target serving district, so can accelerate handoff procedure; Step s703, radio network controller (RNC) sends physical channel and reconfigures (Physical Channel Reconfiguration) message to the user, make the user carry out direct-cut operation, this message has comprised the P-CCPCH information of target serving district, the resource distribution of new Radio Link, as spreading code, time slot etc., the transmitted power and the last line time that have also comprised the user simultaneously shift to an earlier date control information; After step s704, user receive Physical Channel Reconfigration message, calculate emission timing, dispose new physical channel in target serving district; Step s705, former Serving cell detects the radio link failure with this user, sends the Radio Link Failure Indication message to radio network controller (RNC); Step s706, user send physical channel and reconfigure and finish (Physical Channel Reconfigration Complete) message to radio network controller (RNC) on new physical channel, recover transmission then; Step s707, radio network controller (RNC) sends the wireless connections removal request to former Serving cell, step s708, former Serving cell sends wireless connections deletion response message to radio network controller (RNC); Step s709 is by the bearer context for data transmission of ALCAP agreement release Iub mouth.For normal Intra-RNC minizone handoff procedure, radio network controller (RNC) need be set up Radio Link and corresponding transmission bearer at Iub interface for this user at Target cell, could the user be switched by sending Physical Channel Reconfigration message then to the user.
More than disclosed only be several specific embodiment of the present invention, still, the present invention is not limited thereto, any those skilled in the art can think variation all should fall into protection scope of the present invention.
Claims (13)
1, a kind of method of setting up fast by resource reservation realization calling is characterized in that, may further comprise the steps:
A, reserve the channel resource of transmission VoIP speech for calling subscriber and called subscriber at network side;
B, when the calling subscriber makes a call, activate the described channel resource of reserving transmission VoIP speech for the calling subscriber;
C, calling subscriber to PTT ptt server transmission call request information, comprise called user information in this information by the described channel resource of reserving transmission VoIP speech for the calling subscriber;
D, PTT ptt server are according to the called user information calling called subscriber;
E, activate describedly, and distribute to the called subscriber for the called subscriber reserves the channel resource that transmits the VoIP speech;
F, calling subscriber and called subscriber call out and are connected foundation, converse.
2, realize to call out the method for setting up fast by resource reservation according to claim 1, it is characterized in that, described step B or step e by make the user from CELL_PCH transition between states to the CELL_DCH state, activate the channel resource of described reservation transmission VoIP speech.
3, realize calling out the method for setting up fast by resource reservation as described in claim 2, it is characterized in that, to the CELL_DCH state, the channel resource that activates described reservation transmission VoIP speech further may further comprise the steps from CELL_PCH transition between states:
B11, triggering cell renewal process;
The channel resource of B12, radio network controller (RNC) configuration transmission VoIP speech;
The channel resource configuring condition that B13, radio network controller (RNC) notify the user to transmit the VoIP speech;
B14, sub-district and user notify radio network controller (RNC) sub-district escalation process to finish respectively, realize the user from CELL_PCH transition between states to the CELL_DCH state.
4, realize calling out the method for setting up fast by resource reservation as described in claim 3, it is characterized in that, to the CELL_DCH state, the channel resource that activates described reservation transmission VoIP speech further comprises from CELL_PCH transition between states:
B21, radio network controller (RNC) are the channel resource that transmission VoIP speech is satisfied in each sub-district pre-configured at least one;
B22, triggering cell renewal process;
The channel resource of the transmission VoIP speech that RNC of B23, RNC activation is pre-configured;
The channel resource configuring condition that B24, RNC notify the user to transmit the VoIP speech;
B25, sub-district and user notify RNC sub-district escalation process to finish respectively, realize the user from CELL_PCH transition between states to the CELL_DCH state.
5, as described in claim 4, realize calling out the method for setting up fast by resource reservation, it is characterized in that, when using the channel resource of default transmission VoIP speech, the user resets the channel resource of at least one transmission VoIP speech, guarantees that there is required preset channel resource in the user when initiating the VoIP business.
6, realize calling out the method for setting up fast by resource reservation as described in claim 3 or 4, it is characterized in that, described triggering cell renewal process is to realize by the cell update message that sends radio resource control RRC on public control channel CCCH.
7, as described in claim 4, realize calling out the method for setting up fast by resource reservation, it is characterized in that the channel resource of the described pre-configured transmission VoIP speech of described step B23 is to activate by newly-increased NBAP message Radio Link Active Indication.
8, realize calling out the method for setting up fast by resource reservation according to claim 1, it is characterized in that the channel resource of the described transmission of steps A VoIP speech comprises: satisfy the PDP Context that the VoIP speech requires between the signaling Iu resource between radio network controller (RNC) and the SGSN, professional Iu resource and SGSN and the GGSN.
9, a kind of method by sub-district reservation quickening signaling and service resources assignment is characterized in that, may further comprise the steps:
The channel resource of transmission VoIP speech between a, reservation radio network controller (RNC) and the sub-district;
B, triggering cell renewal process;
The channel resource of the transmission VoIP speech between c, the described reservation radio network controller (RNC) of activation and the sub-district;
The channel resource configuring condition that d, radio network controller (RNC) notify the user to transmit the VoIP speech;
E, sub-district and user notify the RNC cell updating course to finish respectively.
10, a kind of cell switching method by sub-district reservation quickening signaling and service resources assignment is characterized in that, may further comprise the steps:
(11), be reserved in channel resource between Target cell and the radio network controller (RNC);
(12), when radio network controller (RNC) starts the sub-district and switches, give the user with described channel reservation resource allocation;
(13), the user passes through described channel reservation resource switch to Target cell.
11, as described in claim 10, reserve the cell switching method of accelerating signaling and service resources assignment, it is characterized in that step also comprises after (13) by the sub-district:
(14) former Serving cell detects the radio link failure with this user, sends Radio Link Failure and indicates to RNC;
(15) user finishes by the physical channel notice RNC physical channel configuration of new configuration, recovers transmission simultaneously;
(16) RNC discharges Radio Link and the transmission bearer of this user at former Serving cell.
12, as described in claim 10, reserve the cell switching method of accelerating signaling and service resources assignment, it is characterized in that the described channel resource of step (11) comprises: Radio Link and corresponding Iub interface transmission bearer by the sub-district.
13, as described in claim 10, reserve the cell switching method of accelerating signaling and service resources assignment by the sub-district, it is characterized in that, step (12) RNC before sends physical channel to the user and reconfigures message, described physical channel reconfigures message and comprises: the P-CCPCH information of Target cell, the resource allocation information of Radio Link, user's transmitted power and last line time shift to an earlier date control information, and the resource allocation information of described Radio Link comprises: configuration spreading code and configuration time slot.
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