CN101835225A - Method and equipment for switching communication service between systems - Google Patents
Method and equipment for switching communication service between systems Download PDFInfo
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- CN101835225A CN101835225A CN200910079934A CN200910079934A CN101835225A CN 101835225 A CN101835225 A CN 101835225A CN 200910079934 A CN200910079934 A CN 200910079934A CN 200910079934 A CN200910079934 A CN 200910079934A CN 101835225 A CN101835225 A CN 101835225A
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Abstract
The invention discloses a method and equipment for switching a communication service between systems. The method comprises the following steps of: judging whether user equipment which establishes the communication service is in a cell forward access channel state or not; if the user equipment is in the cell forward access channel state, judging whether the communication service needs born in a global system for mobile communications (GSM) or not when a core network initiates the wireless access bearer establishment of the communication service; and if the communication service needs born in the GSM, triggering the switching, between a communication system which establishes the communication service and the GSM, of the communication service, and establishing the communication service in the GSM. Due to the adoption of the method, the defect that, in the prior art, a switching process between the systems cannot be performed when the user equipment is in the cell forward access channel state can be overcome; switching time delay can be reduced; and the technical effect of avoiding dropped calls of the user equipment can be achieved. In addition, as the user equipment can be switched into the GSM directly while the service is established, strategies of the network can be more flexible.
Description
Technical field
The present invention relates to wireless communication technology, the method and apparatus that particularly a kind of communication service is switched between system.
Background technology
Fig. 1 is the radio reception device principle schematic, as shown in the figure, NodeB is the base station, RNC (Radio Network Controller) is a radio network controller, and the two is collectively referred to as RAN (Radio Access Network, wireless access network) or wireless access subsystem, RAN is UE (User Equipment, subscriber equipment) and the part between the CN (Core Network, core net), link to each other with core net by the Iu interface.NodeB can handle one or more sub-districts, and links to each other with RNC by Iub interface.RNC is responsible for switching controls, and user mobility management function between different districts provides support.The base station is by Uu interface and UE transmission data.
In the 3G system, the user at first sets up RRC (Radio Resource Control, Radio Resource control) with network and connects when initiating audio call, sets up RAB (Radio Access Bearer, RAB) afterwards again.Connect for RRC, network side is according to the load condition of sub-district, perhaps collocation strategy is (such as priority allocation FACH (Forward Access CHannel, forward access channel), perhaps priority allocation DCH (Dedicated CHannel, dedicated channel) resource) it may be based upon DCH and go up (this moment, the user was in CELL_DCH (cell private channel) state), also may be based upon FACH/RACH (Random Access CHannel, Random Access Channel) goes up (this moment, the user was in CELL_FACH (cell forward access channel) state), when RRC is based upon FACH/RACH, because FACH is a down channel, RACH is a up channel, needs simultaneously in the both direction Resources allocation usually.
In addition, also have a kind of situation, UE set up the connection of PS (Packet Switched, packet switching) territory or had set up the PS business with network before initiating audio call, and this moment, UE also may be in the CELL_FACH state.
When core net initiation RAB sets up, RNC according to the load condition of sub-district or network operation strategy (such as preferentially speech business being carried on GSM (Global System for Mobile communication, global system for mobile communications) network), the user need be based upon the GSM sub-district this moment.
Be based upon the situation of DCH state for RRC, though RNC refusal RAB sets up, it can initiate repositioning process, and by repositioning process speech business is based upon in the GSM network.In this scheme, when switching between the UE executive system, owing to voice are not also set up successfully, so user's fundamental sensation influences voice less than switching between system.Under the situation of handoff failure, the user is felt as call failure.
But be in the situation of CELL_FACH for the user, at present in the agreement of prior art, only support the user who RRC is based upon DCH to switch to GSM, be based upon FACH/RACH and only establish CS (Circuit Switch for RRC, circuit switching) user of domain signaling connection then can't be switched between executive system.In addition,, connect, then can only use the mode of network-triggered sub-district gravity treatment to finish mobility functions between system, so also can't between system, set up speech business in the handoff procedure if set up the PS domain signaling for the UE of CELL_FACH state.
Cause the schematic flow sheet of call drop when Fig. 2 sets up speech business for UE under the CELL_FACH state because of inadequate resource, as shown in the figure, may further comprise the steps:
Step 201, UE set up the RRC connection or set up the PS business, and are in the CELL_FACH state;
Step 202, UE send INITIAL DIRECT TRANSFER (initial directly transmission) message to RNC;
Between step 203, UE and the CN through the Non-Access Stratum process that direct transfers alternately;
Step 204, CN send RAB ASSIGNMENT REQUEST (RAB assignment request) message request to RNC and set up speech business;
Step 205, RNC find inadequate resource;
Step 206, RNC represent the professional failure of setting up to CN feedback RAB ASSIGNMENT RESPONSE (RAB assigns response) message;
Step 207, RNC send IU RELEASE REQUEST (the IU interface discharges request) message to CN;
Step 208, CN reply IU RELEASE COMMAND (the IU interface releases order) message to RNC;
Step 209, RNC send IU RELEASE COMPLETE (the IU interface discharges and finishes) message to CN;
The connection of step 210, release UE, the UE call drop.
Fig. 3 carries out when setting up speech business for UE under the CELL_FACH state switching the implementing procedure schematic diagram between system, as shown in the figure, can comprise:
Step 301, UE set up the RRC connection or set up the PS business, and are in the CELL_FACH state;
Between step 303, UE and the CN through the Non-Access Stratum process that direct transfers alternately;
Step 304, CN send RAB ASSIGNMENT REQUEST message request to RNC and set up speech business;
Step 305, RNC find that network configuration is that voice use the GSM carrying;
Step 306, RNC send RADIO BEARER SETUP (radio bearer foundation) message to UE, are based upon the CELL_DCH state;
Step 308, RNC send RAB ASSIGNMENT RESPONSE (RAB assigns response) message to CN, professional foundation successfully;
Step 309, RNC send RELOCATION REQUIRED (reorientation demand) message to CN, and request switches to GSM;
Step 310, CN switch to GSM to RNC feedback RELOCATION COMMAND (repositioning instruction) message with business;
Step 314, discharge the connection of UE at 3G, UE keeps communication at GSM.
By above-mentioned flow process as can be seen, the deficiencies in the prior art are: when the user is in the CELL_FACH state, can't sets up in the process at RAB and switch between executive system, and can only initiate to switch between system after RAB foundation is finished again.Owing to can not switch between executive system, RNC needs earlier RAB to be based upon on the DCH, and then is initiated to the switching of GSM.But because success set up in voice before switching, so in the handoff procedure, will have the long situation of handover delay between system, the user can feel the interruption of voice; If handoff failure, then the user can think call drop, and it is relatively poor that the user experiences.
In addition, under the situation of 3G Serving cell inadequate resource,, will cause conversation loss if can not switch between executive system.
Summary of the invention
The invention provides the method and apparatus that a kind of communication service is switched between system, in order to solve the problem of switching between the UE executive system under the CELL_FACH state in the prior art.
The method that provides a kind of communication service to switch between system in the embodiment of the invention comprises the steps:
Judge the state of the UE that sets up communication service;
When definite UE is in the CELL_FACH state, judge the bearing mode of described communication service;
Determining that described communication service needs when GSM carries, when the RAB that initiates communication service as CN sets up, trigger the switching of described communication service between the communication system of setting up this communication service and GSM, and set up described communication service at GSM.
Preferably, the state of the user equipment (UE) of communication service is set up in described judgement, comprising:
When RRC is based upon FACH/RACH or UE to establish the PS territory professional and when using the FACH/RACH carrying, determine that UE is in the CELL_FACH state.
Preferably, the bearing mode of the described communication service of described judgement comprises:
RNC determines that current inadequate resource or network configuration are that GSM when carrying preferentially used in described communication service, determine that described communication service needs carry at GSM.
Preferably, the switching of the described communication service of described triggering between the communication system of setting up this communication service and GSM, and set up described communication service at GSM, comprising:
Indication CN application GSM Internet resources;
UE switches to the GSM sub-district in GSM resource bid success back indication.
Preferably, described indication CN application GSM Internet resources comprise:
Set up by the RAB that returns to CN and to carry re-positioning request in the failed message and indicate CN application GSM Internet resources.
Preferably, the described UE that indicates after GSM resource bid success comprises to the switching of GSM sub-district:
After GSM resource bid success, initiate the reorientation order to RNC;
RNC initiates HANDOVER FROM UTRAN order to UE;
UE switches to the GSM sub-district after receiving HANDOVER FROM UTRAN order.
Preferably,, behind the handover success, further comprise:
CN sends the Iu release command to RNC;
RNC returns release to CN and finishes after discharging the Iu connection.
A kind of radio network controller also is provided in the embodiment of the invention, has comprised:
Condition judgment module is used to judge whether the UE that sets up communication service is in the CELL_FACH state;
The carrying judge module is used for when described UE is in the CELL_FACH state, when the RAB of CN initiation communication service sets up, judges whether described communication service needs carry at GSM;
Handover module is used for needing then to trigger the switching of described communication service between the communication system of setting up this communication service and GSM when GSM carries in described communication service, and triggers CN and set up described communication service at GSM.
Preferably, described condition judgment module is further used for when RRC is based upon FACH/RACH or UE to establish the PS territory professional and when using the FACH/RACH carrying, determine that UE is in the CELL_FACH state.
Preferably, described carrying judge module is further used for determining that at RNC current inadequate resource or network configuration are that GSM when carrying preferentially used in described communication service, determine that described communication service needs carry at GSM.
Preferably, described handover module comprises:
The CN indicating member is used to indicate CN application GSM Internet resources;
The UE indicating member is used for switching to the GSM sub-district at GSM resource bid success back indication UE.
Preferably, described CN indicating member is further used for setting up by the RAB that returns to CN and carries re-positioning request in the failed message and indicate CN application GSM Internet resources.
Preferably, the UE indicating member is further used for after the reorientation order of receiving the CN initiation, initiates HANDOVER FROM UTRAN order to UE, and described HANDOVER FROM UTRAN order is used to indicate UE to switch to the GSM sub-district.
A kind of subscriber equipment also is provided in the embodiment of the invention, has comprised:
Receiver module is used to receive HANDOVER FROM UTRAN order;
Handover module is used for after receiving HANDOVER FROM UTRAN order business being switched to the GSM sub-district.
A kind of system of switching communication service between system is provided again in the embodiment of the invention, has comprised:
RNC is used to judge whether the UE that sets up communication service is in the CELL_FACH state; If then when the RAB that initiates communication service as CN sets up, judge whether described communication service needs to carry at GSM; If then indicate CN application GSM Internet resources; And indication UE switches to the GSM sub-district after GSM resource bid success;
CN is used for the indication application GSM Internet resources according to RNC;
UE is used for according to the indication of RNC business being switched to the GSM sub-district.
Preferably, CN is further used for behind handover success, sends the Iu release command to RNC;
RNC is further used for after discharging the Iu connection, returns to discharge to CN and finishes.
Beneficial effect of the present invention is as follows:
In the invention process, after whether the UE that determines to set up communication service is in the CELL_FACH state, be the RAB that then initiates communication service at CN when setting up, whether need carry at GSM to judge communication service; If then trigger the switching of described communication service between the communication system of setting up this communication service and GSM, and set up described communication service at GSM.Because in case determine that UE is in the CELL_FACH state, and when needing on GSM, to carry, just directly begin reorientation at RAB establishment stage indication CN, and business switched to GSM, thereby when having avoided that UE is in the CELL_FACH state in the prior art, can not carry out the deficiency switched between system, obtain the minimizing handover delay, avoid the technique effect of UE call drop.In addition, also, make that the strategy of network is also more flexible because when business is set up, can directly UE be switched to gsm system.
Description of drawings
Fig. 1 is a radio reception device principle schematic in the background technology;
Fig. 2 is the schematic flow sheet that causes call drop when UE sets up speech business under the CELL_FACH state in the background technology because of inadequate resource;
Fig. 3 carries out switching between system the implementing procedure schematic diagram when UE sets up speech business under the CELL_FACH state in the background technology;
The method implementing procedure schematic diagram that Fig. 4 switches between system for communication service in the embodiment of the invention;
Fig. 5 carries out the implementing procedure schematic diagram that switches between system when UE sets up speech business under the CELL_FACH state in the embodiment of the invention;
Fig. 6 is a radio network controller structural representation in the embodiment of the invention;
Fig. 7 is a user device architecture schematic diagram in the embodiment of the invention;
Fig. 8 is the system configuration schematic diagram that switches communication service in the embodiment of the invention between system.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described.
The method implementing procedure schematic diagram that Fig. 4 switches between system for communication service as shown in the figure, when switching between system, can comprise the steps:
Be that 3G network, communication service are that speech business is that example describes embodiment with the communication network of setting up communication service below.Other communication network also can be implemented the present invention, as long as exist in this communication system when the user is in the CELL_FACH state, can't set up at RAB and switch this problem in the process between executive system, just can implement.For the business of other circuit domain, so long as the business that gsm system is supported, for example: speech business, circuit domain low-speed data service etc., can use this scheme.The business of gsm system support is compared with the 3G system, and speed is lower usually.
UE may be in the CELL_FACH state before setting up speech business, therefore need determine by the state to UE in step 401, judged that specifically whether UE is in the mode of CELL_FACH state, can comprise:
When RRC is based upon FACH/RACH or UE to establish the PS territory professional and when using the FACH/RACH carrying, can determine that then UE is in the CELL_FACH state.
Can know by the technical problem that the embodiment of the invention solved, after definite UE is in the CELL_FACH state, for fear of the problem that causes because of switching between system, just must determine in step 402 whether communication service needs to carry at GSM, when this step is set up at the RAB that initiates speech business as CN, judge, concrete, judging whether described communication service needs can comprise when GSM carries:
When RNC determines current inadequate resource or network configuration is that GSM when carrying preferentially used in described communication service, can determine that then described communication service needs carry at GSM.
Need after the GSM carrying in definite communication service, just can execution in step 403, that is: switch between the triggering system with professional and set up concurrent flow process.
Then,, and set up in the described process of communication service, can comprise following two parts at GSM in the switching of triggering communication service between 3G system and GSM of implementation step 403:
1, indication CN application GSM Internet resources;
2, switch to the GSM sub-district at GSM resource bid success back indication UE.
In the enforcement, when indication CN application GSM Internet resources, can comprise:
Set up by the RAB that returns to CN and to carry re-positioning request in the failed message and indicate CN application GSM Internet resources.
Concrete, can be: RNC returns RAB to CN and sets up failed message, and wherein carrying failure cause is Directed Retry, has also just initiated re-positioning request to CN like this, requires CN that UE is switched to the GSM sub-district, and CN just can be to GSM network application resource afterwards.
In the enforcement, when switch the GSM sub-district, can comprise at GSM resource bid success back indication UE:
After GSM resource bid success, initiate the reorientation order to RNC;
RNC initiates HANDOVER FROM UTRAN order to UE;
UE switches to the GSM sub-district after receiving HANDOVER FROM UTRAN order.
Concrete, after GSM resource bid success, CN initiates the reorientation order to RNC, and RNC initiates HANDOVER FROM UTRAN order to UE, and UE receives after the HANDOVER FROMUTRAN order, just can carry out speech business to the GSM sub-district and switch.
The effect of HANDOVER FROM UTRAN order is the resource information of notice UE Target cell and Target cell, UE receives after this order, according to the wireless resource information of GSM cell information that wherein carries and GSM cell allocation, set up wireless connections in the GSM sub-district.UE just can switch to the GSM network after receiving this order.
Behind the handover success, further can also comprise:
CN sends the Iu release command to RNC;
RNC returns release to CN and finishes after discharging the Iu connection.
Behind the handover success, CN sends the Iu release command to RNC, and RNC returned release to CN and finish, and UE still continued to keep voice communication in the GSM network this moment, the situation of call drop can not occur after discharging the Iu connection.
Fig. 5 carries out the implementing procedure schematic diagram that switches between system when setting up speech business for UE under the CELL_FACH state, as shown in the figure, implement when with the switching to example and carry out of speech business, can comprise the steps:
Step 501, UE set up the RRC connection or set up PS territory business, and are in the CELL_FACH state;
Step 502, UE send INITIAL DIRECT TRANSFER message to RNC;
Between step 503, UE and the CN through the Non-Access Stratum process that direct transfers alternately;
Step 504, CN send RAB ASSIGNMENT REQUEST message request to RNC and set up speech business;
Step 505, RNC find inadequate resource, and perhaps network configuration is that voice use the GSM carrying;
Step 506, RNC send RAB ASSIGNMENT RESPONSE message to CN, and indicating services is set up failure, and is former because Directed Retry;
Step 507, RNC send RELOCATION REQUIRED message to CN, and be former because Directed Retry asks to switch to GSM;
Step 508, CN switch to GSM to RNC feedback RELOCATION COMMAND message;
Step 509, RNC send HANDOVER FROM UTRAN COMMAND message to UE, and indication switches to GSM;
Step 510, CN send IU RELEASE COMMAND message to RNC;
Step 511, RNC reply IU RELEASE COMPLETE message to CN;
Step 512, discharge the connection of UE at 3G, UE keeps communication at GSM.
As can be seen from the above-described embodiment, when UE was in the CELL_FACH state, network can switch to the GSM sub-district with UE by HANDOVER FROM UTRAN order, and issuable call drop phenomenon when having avoided switching between system has also reduced handover delay simultaneously.
Based on same inventive concept, a kind of radio network controller, subscriber equipment, radio communication core network system also are provided in the embodiment of the invention, between system, have switched the system of communication service, because the principle that these equipment are dealt with problems is similar to the method that a kind of communication service is switched between system, therefore the enforcement of these equipment can repeat part and not give unnecessary details referring to the enforcement of method.
Fig. 6 is the radio network controller structural representation, as shown in the figure, can comprise among the RNC:
Carrying judge module 602 is used for when described UE is in the CELL_FACH state, when the RAB of CN initiation communication service sets up, judges whether described communication service needs carry at GSM.During concrete enforcement, this module can be positioned at RNC inside, can realize by software programming.
Condition judgment module can be further used for when RRC is based upon FACH/RACH or UE to establish the PS territory professional and when using the FACH/RACH carrying, determine that UE is in the CELL_FACH state.
In the enforcement, the functional entity of employed channel when UE realizes business can be known on every RNC, all condition judgment module can be realized.During concrete enforcement, RRM module on the RNC or Radio Resource control module etc. can be used for realizing this function.
The carrying judge module can be further used for determining that at RNC current inadequate resource or network configuration are that GSM when carrying preferentially used in described communication service, determine that described communication service needs carry at GSM.
In the enforcement, RNC is last can be known network configuration or carry out the functional entity of network configuration, and can determine the function that functional entity that the current base station bearing resource distributes can be used for realizing carrying judge module.During concrete enforcement, the entity of finishing similar functions can be functional entitys such as RRM module or Radio Resource control module.
Handover module can comprise:
The CN indicating member is used to indicate CN application GSM Internet resources;
The UE indicating member is used for switching to the GSM sub-district at GSM resource bid success back indication UE.
The CN indicating member can also be further used for setting up by the RAB that returns to CN and carry re-positioning request in the failed message and indicate CN application GSM Internet resources.
In the enforcement, be used to set up the function that functional entity that RAB connects all can be realized the CN indicating member among the RNC.
The UE indicating member can be further used for after the reorientation order of receiving the CN initiation, initiates HANDOVER FROM UTRAN order to UE, and described HANDOVER FROM UTRAN order is used to indicate UE to switch to the GSM sub-district.
In the enforcement, can be used in the function that the functional entity of initiating the reorientation order can be realized the UE indicating member among the RNC.
Fig. 7 is the user device architecture schematic diagram, as shown in the figure, can comprise among the UE:
Receiver module 701 is used to receive HANDOVER FROM UTRAN order;
Handover module 702 is used for after receiving HANDOVER FROM UTRAN order business being switched to the GSM sub-district.
Fig. 8 is the system configuration schematic diagram that switches communication service between system, as shown in the figure, can comprise in the system:
RNC801 is used to judge whether the UE that sets up communication service is in the CELL_FACH state; If then when the RAB that initiates communication service as CN sets up, judge whether described communication service needs to carry at GSM; If then indicate CN application GSM Internet resources; And indication UE switches to the GSM sub-district after GSM resource bid success;
CN802 is used for the indication application GSM Internet resources according to RNC;
UE803 is used for according to the indication of RNC business being switched to the GSM sub-district.
In the enforcement, CN can also be further used for behind handover success, sends the Iu release command to RNC;
RNC can also be further used for after discharging the Iu connection, returns to discharge to CN and finishes.
For the convenience of describing, the each several part of the above device is divided into various modules with function or the unit is described respectively.Certainly, when enforcement is of the present invention, can in same or a plurality of softwares or hardware, realize the function of each module or unit.
As can be seen from the above-described embodiment, after whether the UE that determines to set up communication service is in the CELL_FACH state, be the RAB that then initiates communication service when setting up at CN, whether need carry at GSM to judge communication service; If then trigger the switching of described communication service between the communication system of setting up this communication service and GSM, and set up described communication service at GSM.Because in case determine that UE is in the CELL_FACH state, and when needing on GSM, to carry, just directly begin reorientation at RAB establishment stage indication CN, and business switched to GSM, thereby when having avoided that UE is in the CELL_FACH state in the prior art, can not carry out the deficiency switched between system, obtain the minimizing handover delay, avoid the technique effect of UE call drop.In addition, also, make that the strategy of network is also more flexible because when business is set up, can directly UE be switched to gsm system.
Further, when UE was in the CELL_FACH state, network can be by HANDOVERFROM UTRAN order, UE is switched to the GSM sub-district, overcome in the prior art, when UE is in the CELL_FACH state, can not use the deficiency of HANDOVER FROM UTRAN process.
Those skilled in the art should understand that embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware embodiment, complete software implementation example or in conjunction with the form of the embodiment of software and hardware aspect.And the present invention can adopt the form that goes up the computer program of implementing in one or more computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) that wherein include computer usable program code.
The present invention is that reference is described according to the flow chart and/or the block diagram of method, equipment (system) and the computer program of the embodiment of the invention.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or the block diagram and/or square frame and flow chart and/or the block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, make the instruction of carrying out by the processor of computer or other programmable data processing device produce to be used for the device of the function that is implemented in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, make the instruction that is stored in this computer-readable memory produce the manufacture that comprises command device, this command device is implemented in the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded on computer or other programmable data processing device, make on computer or other programmable devices and to carry out the sequence of operations step producing computer implemented processing, thereby the instruction of carrying out on computer or other programmable devices is provided for being implemented in the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
Although described the preferred embodiments of the present invention, in a single day those skilled in the art get the basic creative notion of cicada, then can make other change and modification to these embodiment.So claims are intended to all changes and the modification that are interpreted as comprising preferred embodiment and fall into the scope of the invention.
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 (16)
1. the method that communication service is switched between system is characterized in that, comprises the steps:
Judge the state of the user equipment (UE) of setting up communication service;
When definite UE is in cell forward access channel CELL_FACH state, judge the bearing mode of described communication service;
Determining that described communication service needs after the GSM carrying, when the RAB RAB that initiates communication service as core net CN sets up, trigger the switching of described communication service between the communication system of setting up this communication service and GSM, and set up described communication service at GSM.
2. the method for claim 1 is characterized in that, the state of the user equipment (UE) of communication service is set up in described judgement, comprising:
When radio resource control RRC is based upon forward access channel/Random Access Channel FACH/RACH, or UE to establish packet switching PS territory professional and when using the FACH/RACH carrying, determine that UE is in the CELL_FACH state.
3. the method for claim 1 is characterized in that, the bearing mode of the described communication service of described judgement comprises:
Radio network controller (RNC) determines that current inadequate resource or network configuration are that GSM when carrying preferentially used in described communication service, determine that described communication service needs carry at GSM.
4. as the arbitrary described method of claim 1 to 3, it is characterized in that, the switching of the described communication service of described triggering between the communication system of setting up this communication service and GSM, and set up described communication service at GSM, comprising:
Indication CN application GSM Internet resources;
UE switches to the GSM sub-district in GSM resource bid success back indication.
5. method as claimed in claim 4 is characterized in that, described indication CN application GSM Internet resources comprise:
Set up by the RAB that returns to CN and to carry re-positioning request in the failed message and indicate CN application GSM Internet resources.
6. method as claimed in claim 4 is characterized in that, the described UE that indicates after GSM resource bid success comprises to the switching of GSM sub-district:
After GSM resource bid success, initiate the reorientation order to RNC;
RNC initiates to switch the UTRAN instruction to UE;
UE receives that switching UTRAN instruction back switches to the GSM sub-district.
7. method as claimed in claim 4 is characterized in that, behind the handover success, further comprises:
CN sends the Iu release command to RNC;
RNC returns release to CN and finishes after discharging the Iu connection.
8. a radio network controller is characterized in that, comprising:
Condition judgment module is used to judge whether the UE that sets up communication service is in the CELL_FACH state;
The carrying judge module is used for when described UE is in the CELL_FACH state, when the RAB of CN initiation communication service sets up, judges whether described communication service needs carry at GSM;
Handover module is used for needing then to trigger the switching of described communication service between the communication system of setting up this communication service and GSM when GSM carries in described communication service, and triggers CN and set up described communication service at GSM.
9. radio network controller as claimed in claim 8, it is characterized in that, described condition judgment module is further used for when RRC is based upon FACH/RACH or UE to establish the PS territory professional and when using the FACH/RACH carrying, determine that UE is in the CELL_FACH state.
10. radio network controller as claimed in claim 8, it is characterized in that, described carrying judge module is further used for determining that at RNC current inadequate resource or network configuration are that GSM when carrying preferentially used in described communication service, determine that described communication service needs carry at GSM.
11., it is characterized in that described handover module comprises as the arbitrary described radio network controller of claim 8 to 10:
The CN indicating member is used to indicate CN application GSM Internet resources;
The UE indicating member is used for switching to the GSM sub-district at GSM resource bid success back indication UE.
12. radio network controller as claimed in claim 11 is characterized in that, described CN indicating member is further used for setting up by the RAB that returns to CN and carries re-positioning request in the failed message and indicate CN application GSM Internet resources.
13. radio network controller as claimed in claim 11, it is characterized in that, the UE indicating member is further used for initiating to switch the UTRAN instruction to UE after receiving the reorientation order that CN initiates, and described the switching the UTRAN instruction and be used to indicate UE to switch to the GSM sub-district.
14. a subscriber equipment is characterized in that, comprising:
Receiver module is used for receiving and switches the UTRAN instruction;
Handover module, be used for receive switch UTRAN instruction after, business is switched to the GSM sub-district.
15. a system of switching communication service between system is characterized in that, comprising:
RNC is used to judge whether the UE that sets up communication service is in the CELL_FACH state; If then when the RAB that initiates communication service as CN sets up, judge whether described communication service needs to carry at GSM; If then indicate CN application GSM Internet resources; And indication UE switches to the GSM sub-district after GSM resource bid success;
CN is used for the indication application GSM Internet resources according to RNC;
UE is used for according to the indication of RNC business being switched to the GSM sub-district.
16. system as claimed in claim 15 is characterized in that,
CN is further used for behind handover success, sends the Iu release command to RNC;
RNC is further used for after discharging the Iu connection, returns to discharge to CN and finishes.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910079934A CN101835225B (en) | 2009-03-13 | 2009-03-13 | Method and equipment for switching communication service between systems |
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| CN200910079934A CN101835225B (en) | 2009-03-13 | 2009-03-13 | Method and equipment for switching communication service between systems |
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| CN101835225B CN101835225B (en) | 2012-08-29 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102413534A (en) * | 2010-09-26 | 2012-04-11 | 大唐移动通信设备有限公司 | Cell switching method, system and equipment |
| CN104303556A (en) * | 2012-12-31 | 2015-01-21 | 华为技术有限公司 | Method for sharing wireless network, radio network controller, and core network |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101106517B (en) * | 2006-07-13 | 2010-06-23 | 大唐移动通信设备有限公司 | Traffic control method and RNC for high-speed downlink packet access |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102413534A (en) * | 2010-09-26 | 2012-04-11 | 大唐移动通信设备有限公司 | Cell switching method, system and equipment |
| CN102413534B (en) * | 2010-09-26 | 2014-09-10 | 大唐移动通信设备有限公司 | Cell switching method, system and equipment |
| CN104303556A (en) * | 2012-12-31 | 2015-01-21 | 华为技术有限公司 | Method for sharing wireless network, radio network controller, and core network |
| CN104303556B (en) * | 2012-12-31 | 2018-01-16 | 华为技术有限公司 | Method, radio network controller and the core net of shared wireless network |
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| Publication number | Publication date |
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| CN101835225B (en) | 2012-08-29 |
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