CN100558197C - The management of new and old link circuit resource and conversion method in a kind of communication system - Google Patents
The management of new and old link circuit resource and conversion method in a kind of communication system Download PDFInfo
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- CN100558197C CN100558197C CNB2005101183123A CN200510118312A CN100558197C CN 100558197 C CN100558197 C CN 100558197C CN B2005101183123 A CNB2005101183123 A CN B2005101183123A CN 200510118312 A CN200510118312 A CN 200510118312A CN 100558197 C CN100558197 C CN 100558197C
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Abstract
The invention discloses the management and the conversion method of new and old link circuit resource in a kind of communication system, it is characterized in that, be respectively network side and UE is provided with change-over time, and the change-over time that is provided with for UE is less than the change-over time for the network side setting; UE is after collecting the link transforming message, according to being the conversion of carrying out new old link change-over time of its setting; Network side keeps new and old two links to communicate by letter with UE after configuring new link simultaneously, carries out new old link conversion after arriving the change-over time of network side again, and old link is transformed on the new link.The present invention can guarantee when link does not fall, improves the time delay that continues of link conversion.
Description
Technical field
The present invention relates to the link connection switch technology of communication system, relate in particular to a kind of management and conversion method that in communication system, shortens the link circuit resource of the time delay that continues.
Background technology
The time delay that continues is major issue in Wideband Code Division Multiple Access (WCDMA) (WCDMA) system, and the long meeting of the time delay that continues directly influences user's subjective feeling, influences the loyalty of user to the WCDMA Operation Network.Link establishment in the handshaking procedure is divided into synchronous foundation, the asynchronous dual mode of setting up.Setting up synchronously is in setting up process, and radio network controller (RNC) informing base station (NodeB) and user terminal (UE) are gone up in the change-over time of an appointment (CFN) and be transformed into new link from old link.Asynchronous foundation is that RNC is respectively NodeB and UE sets up link, but does not guarantee that new link comes into force in time simultaneously.
Setting up in the process synchronously, needing the designated conversion time in advance, can set up message eating dishes without rice or wine also can in the transition period, receive in wrong for guaranteeing UE.
Existingly set up synchronized reconfiguration Radio Link between process need SRNC, NodeB and the UE synchronously.Synchronizing process is as follows:
The first, NodeB is after receiving the reconfiguring radio link message that SRNC issues, can not enable new configuration parameter immediately, promptly carry out the conversion of new old link, but be ready to corresponding radio resource, wait receives reshuffling execution message, the change-over time of obtaining the SRNC regulation from message that SRNC issues.
The second, UE can not enable new configuration parameter immediately after receiving the configuration messages that SRNC issues, but obtains from message the change-over time of SRNC regulation.
Three, in the change-over time of SRNC regulation, NodeB and UE enable new configuration parameter simultaneously, carry out the conversion of new old link.
Fig. 1 is the existing signaling process figure that sets up RAB synchronously.Referring to Fig. 1, this synchronizing process comprises:
1) CN sends RAB assignment request message RAB ASSIGNMENTREQUEST to UTRAN, initiates RAB and sets up process.
2) after SRNC receives the RAB request of setting up, the qos parameter of RAB is mapped as AAL2 link characteristic parameters and Radio Resource characterisitic parameter, the ALCAP of Iu interface sets up process according to user's face transmission bearer of wherein AAL2 link characteristic parameters initiation Iu interface.
3) SRNC sends radio link reconfiguration to the NodeB that is controlled and prepares message RADIO LINKRECONFIGURATION PREPARE, and the NodeB that request is controlled prepares to increase by the dedicated transmissions link (DCH) of one (or many) carrying RAB on existing Radio Link.
4) NodeB distributes corresponding resource, sends radio link reconfiguration to affiliated SRNC then and is ready to complete message RADIO LINK RECONFIGURATION READY, and notice SRNC radio link reconfiguration is ready to complete, and promptly new link configuration is finished.
5) user's face transmission bearer of the ALCAP of Iub interface initiation Iub interface is set up process among the SRNC.NodeB and SRNC set up synchronously by the up-downgoing synchronization frame of exchange DCH Frame Protocol.
6) SRNC sets up message RADIO BEARERSETUP to the radio bearer that UE sends the RRC agreement, comprising default change-over time.
7) SRNC wherein also comprises default change-over time to the NodeB transmission radio link reconfiguration execution message RADIO LINKRECONFIGURATION COMMIT that is controlled.
8) after UE execution RB sets up, after arriving change-over time, carry out the conversion of new and old link, and on new link, finish message RADIO BEARER SETUPCOMPLETE to the foundation of SRNC transmission radio bearer.
9) SRNC receives after radio bearer sets up the message finish, and responds RAB assignment response message RAB ASSIGNMENT RESPONSE to CN, finishes RAB and sets up flow process.
But there is following shortcoming in above-mentioned prior art:
In the scene of piece by mistake of eating dishes without rice or wine not, link transfer process in the synchronized reconfiguration does not need very long yet complete connection smoothly, but network side is to prevent mistake piece link call drop high the time, the change-over time of being reserved is long, cause eating dishes without rice or wine not by mistake in the scene of piece, the time delay that continues of its link conversion is also very long.
Summary of the invention
In view of this, main purpose of the present invention is to provide the management and the conversion method of new and old link circuit resource in a kind of communication system, to guarantee when link does not fall, improves the time delay that continues of link conversion.
In order to realize the foregoing invention purpose, main technical schemes of the present invention is:
The management of new and old link circuit resource and conversion method is characterized in that in a kind of communication system, are respectively network side and UE is provided with change-over time, and the change-over time that is provided with for UE is less than the change-over time for the network side setting; UE is after collecting the link transforming message, according to being the conversion of carrying out new old link change-over time of its setting; Network side keeps new and old two links to communicate by letter with UE after configuring new link simultaneously, carries out new old link conversion after arriving the change-over time of network side again, and old link is transformed on the new link.
Be zero the described change-over time that is provided with for UE, and UE carries out the conversion of new old link immediately after collecting the link transforming message.
Described network side with new and old two links with the concrete grammar that UE keeps communicating by letter is simultaneously:
The Control Node of network side communicates alternately by the via node of new link or old link or new old link and network side; The via node of network side utilizes new old link and UE to communicate simultaneously.
This method further comprises: the Control Node estimation of network side is under the good situation of communication quality, and network side is to the time delay of UE issuing message; Control Node will estimate that the result sends to the via node of network side, and via node utilizes old link after UE issues the link transforming message, postpone the zero-time of utilizing new link and UE to communicate according to this time delay.
This method further comprises: the Control Node of network side according to described be provided with for network side change-over time the supervising the network side the channel code resource, after overtime, just other new links are deleted or be used in to the channel code resource of old link for the change-over time of network side setting.
Be provided with by network side described change-over time for network side and UE setting; Wherein be handed down to UE by the link transforming message change-over time that is provided with for UE.
Described network side is handed down to UE by old link with the link transforming message.
The concrete grammar that described network side disposes new link is: network side is the channel code on the different code trees with old link of new link configuration.
It is to be undertaken by the mode of radio link reconfiguration that described network side disposes new link.
It is to be undertaken by the mode that Radio Link is set up that described network side disposes new link.
Described network side is UTRAN, and the Control Node of this network side is RNC, and the via node of this network side is a base station node B, and described link transforming message is that message or Radio Link carrying reconfiguration message are set up in the Radio Link carrying.
Compared with prior art, the present invention has following beneficial effect:
Among the present invention, be respectively UE and be set different change-over time with network side, and the change-over time of UE is shorter than the change-over time of network side, UE after collecting the link transforming message immediately or carry out the conversion of new old link in the short time, it is mutual to start new configuration parameter and network side, change-over time is shorter, so the time delay that continues of link also shortens.And for guaranteeing the alternately normal of network side and UE, network side keeps new and old two links and UE mutual simultaneously, after arriving the change-over time of network side, to change, old link just lost efficacy, therefore when shortening continues time delay, also guaranteed not call drop of link.In addition, network side is the channel code that new and old two links adopt different code trees, produces when avoiding two links to exist simultaneously and disturbs, and further assurance continues at short notice.In addition, network side of the present invention is avoided new link that old link is formed too early disturbing the mistake piece of eating dishes without rice or wine cause to increase by postponing enabling of new link after issuing link connection message, thereby further avoids link to transmit the re-transmission of message, shortens the time delay that continues.
Description of drawings
Fig. 1 is the existing signaling process figure that sets up RAB synchronously;
Fig. 2 is the information interaction flow chart of first embodiment of the invention;
Fig. 3 is the message interaction process figure of second embodiment of the invention.
Embodiment
Below by specific embodiments and the drawings the present invention is described in further details.
Core technology scheme of the present invention is: the management of new and old link circuit resource and conversion method in a kind of communication system, be respectively network side and UE is provided with change-over time, and the change-over time that is provided with for UE is than lacking the change-over time that is provided with for network side; UE is after collecting the link transforming message, according to being the conversion of carrying out new old link change-over time of its setting; Network side utilizes new and old two links and UE to keep communicating by letter after configuring new link simultaneously, carries out new old link conversion after arriving the change-over time of network side again, and old link is transformed on the new link.
Scheme of the present invention is not limited only to the link of WCDMA system and changes the mechanism, and also applicablely comprises that at other link in communication system of Control Node, via node and user terminal changes the mechanism.Embodiment as herein described is that example describes with the WCDMA system, wherein network side is UTRAN, RNC is a Control Node, NodeB is a via node, and the number of NodeB has a plurality of, be responsible for the data forwarding between user terminal UE and the Control Node, described link transforming message is that message (RADIO BEAR SETUP or abbreviation RB SETUP) or Radio Link carrying reconfiguration message (RADIO BEAR RECONFIG or abbreviation RB RECONFIG) are set up in the Radio Link carrying.
Below with two embodiment method of the present invention is described respectively.
First embodiment: this scheme by reshuffle come into force during, UTRAN keeps the necessary resource of new old link two covers, receives and dispatches simultaneously by new old link, guarantees that UE can collect this message, and carries out follow-up interacting message.
Fig. 2 is the information interaction flow chart of first embodiment of the invention.Referring to Fig. 2, this first embodiment mainly comprises:
Step 201, RNC and NodeB have finished the foundation of link, are carried as DCH or HSDPA, and this configuration is called old link.RNC receives after the RAB assignment that the link after beginning to reshuffle is called new link.By the RNC Resources allocation, make RNC and NodeB separate herein, comprising: channel code, FP ID, Alcap resource in the resource that the new old link of reshuffling before and after coming into force takies.
Step 202, RNC are after receiving the RAB assignment, judgement is that RB sets up or RB revises, if RB revises, the message that RNC will issue after selecting is that RADIO BEAR RECONFIG gives UE, if RB sets up, RNC issues RADIO BEAR SETUP message and gives UE.Suppose that herein the link transforming message that RNC issues is a RADIO BEAR SETUP message.
Step 203, RNC are the channel code on the different code trees of new and old link assignment, and RNC carries new configuration information and sends to NodeB by radio link reconfiguration message (RADIO LINK RECONFIG PREPARE) message; NodeB carries out returning radio link reconfiguration after the radio link reconfiguration and is ready to complete message (RADIO LINK RECONFIG READY); After RNC receives RADIO LINKRECONFIG READY, send RADIO LINK RECONFIG COMMIT message to NodeB, wherein carry long T1 change-over time that is provided with into network side, this long T1 change-over time is used to prevent that NodeB from deleting old link in advance; And, RNC sends the link transforming message by NodeB to UE, be that message (RADIO BEAR RECONFIG) or Radio Link carrying reconfiguration message (RADIO BEAR SETUP) are set up in the Radio Link carrying, wherein carrying RNC is T2 change-over time of UE configuration, satisfy T2 smaller or equal to T1, for also adopting the mode of conversion (now) immediately the change-over time of UE configuration, promptly the value of T2 is zero.In order to reach optimum effect, most preferred embodiment is should adopt the mode of conversion immediately the change-over time of UE configuration.
Described RNC by NodeB to the concrete grammar that UE sends the link transforming message is: RNC can be at new link, perhaps old link transmission RADIO BEAR SETUP or RADIO BEARRECONFIG message are to NodeB, perhaps on new and old two links, send RADIO BEARSETUP or RADIO BEAR RECONFIG message simultaneously to NodeB, but NodeB must keep new and old two cover link circuit resources for UE at the same time, keep new old link and UE to communicate simultaneously, receiving and sending messages on the old link or receiving and sending messages on new link no matter that is to say UE, network side can both guarantee to carry out normal mutual with UE.Be like this UE than the early conversion of carrying out new old link of network side, also can guarantee can not go offline.
If step 204, NodeB receive the data that RNC sends on new link, then encoding, modulating at the enterprising line space mouth of new link, launch by the channel code resource of eating dishes without rice or wine, if receive the data that RNC sends at old link, then according to original configuration coding, modulation and emission as usual.NodeB starts the reception of up new old link simultaneously, receives the message that UE sends, and is transmitted to RNC on new link or old link.
In the present embodiment, eating dishes without rice or wine of producing disturbed because new old link coexists in order to reduce, can be in the following ways: at least how long RADIOBEAR RECONFIG that RNC will send by estimation or RADIOBEAR SETUP message just arrive UE not eating dishes without rice or wine to miss under the situation of piece (being that communication quality is good), promptly estimate downlink delay; With the time delay of estimation as the time delay (Delayed Activation Time) of postponing change-over time, and in RADIO LINK RECONFIG COMMIT or RADIO LINK RECONFIG PREPARE message, carry Delayed Activation Time and send to NodeB, NodeB utilizes old link after UE issues the link transforming message, postpone the zero-time of utilizing new link and UE to communicate according to this time delay, make described link transforming message on old link, arrive after the UE, NodeB just is enabled in the upstream message of reception UE on the new link and the emission of downstream message, adopting this mechanism can avoid new link that old link is formed the mistake piece of eating dishes without rice or wine that disturbs and cause too early increases, thereby further avoid link to transmit the re-transmission of message, shorten the time delay that continues.
In addition, RNC channel code resource according to NodeB change-over time T1 supervising the network side the channel code resource, be T1 overtime after, just with the channel code resource deletion of old link or can be used by other new links.
Step 205, UE begin to attempt the down-going synchronous on the new link after carrying out new old link conversion, and convert message to the RNC return link, promptly radio bearer is set up and is finished message (RADIO BEARSETUP COMPLETE) or radio bearer and reshuffle and finish message (RADIO BEARRECONFIG COMPLETE); After RNC receives, think new configuration take-effective, the old link circuit resource of RNC deletion RNC.
Only provided the information receiving and transmitting that RNC carries out new old link among Fig. 2.Also having a kind of mode is that RNC receives and dispatches on old link, and NodeB finishes the transmitting-receiving between new old link and the UE, this mode specifically describes as follows: RNC also can receive and dispatch the message from NodeB on old link, and NodeB is responsible for finishing on new old link and mutual between the UE, to data from the RNC old link, on new old link, send to UE simultaneously,, on old link, send to RNC from the data on the new old link of UE.
Fig. 3 is the message interaction process figure of second embodiment of the invention.Referring to Fig. 3, except the step 203 among first embodiment, the step of this second embodiment is identical with other steps of first embodiment, difference is: second embodiment is in step 203, RNC is the channel code on the different code trees of new and old link assignment, and RNC carries new configuration information and sets up message (RADIO LINK SETUP) by Radio Link and send to NodeB; NodeB carries out returning Radio Link after new Radio Link is set up and sets up response message (RADIO LINKRESPONSE).And described T2 change-over time that is provided with for NodeB sends to NodeB by RADIO LINK SETUP message.
Herein, RNC need send a customizing messages to NodeB, be used to notify NodeB receiving on the descending old channel whether data send the data to UE simultaneously on new channel and old channel, if for being, then NodeB is receiving on the descending old channel that data send the data to UE simultaneously on new channel and old channel, otherwise, if NodeB is in the data of receiving RNC on the old channel then only send the data to UE on old channel, if in the data of receiving RNC on the new channel then only on new channel, sending the data to UE.This customizing messages can send to NodeB by described RADIO LINK RECONFIG PREPARE message or RADIO LINK SETUP message, can send to NodeB by constructing a new message.
RNC is carrying out when dynamic channel reshuffles, do not have this moment CN to issue the RAB assignment message and give RNC, RNC is that the own RB reconfiguration message that initiatively issues is given UE, radio link reconfiguration message or Radio Link are set up message and are given NodeB, the controlling mechanism of this moment and the description of first and second embodiment are in full accord, and different is not have the RAB assignment message.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with the people of this technology in the disclosed technical scope of the present invention; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.
Claims (11)
1, the management and the conversion method of new and old link circuit resource in a kind of communication system is characterized in that, are respectively network side and UE is provided with change-over time, and the change-over time that is provided with for UE is less than the change-over time for the network side setting; UE is after collecting the link transforming message, according to being the conversion of carrying out new old link change-over time of its setting; Network side keeps new and old two links to communicate by letter with UE after configuring new link simultaneously, carries out new old link conversion after arriving the change-over time of network side again, and old link is transformed on the new link.
2, method according to claim 1 is characterized in that, be zero the described change-over time that is provided with for UE, and UE carries out the conversion of new old link immediately after collecting the link transforming message.
3, method according to claim 1 is characterized in that, described network side with new and old two links with the concrete grammar that UE keeps communicating by letter is simultaneously:
The Control Node of network side communicates alternately by the via node of new link or old link or new old link and network side; The via node of network side utilizes new old link and UE to communicate simultaneously.
4, method according to claim 1 is characterized in that, this method further comprises: the Control Node estimation of network side is under the good situation of communication quality, and network side is to the time delay of UE issuing message; Control Node will estimate that the result sends to the via node of network side, and via node utilizes old link after UE issues the link transforming message, postpone the zero-time of utilizing new link and UE to communicate according to this time delay.
5, method according to claim 1, it is characterized in that, this method further comprises: the Control Node of network side according to described be provided with for network side change-over time the supervising the network side the channel code resource, after overtime, just other new links are deleted or be used in to the channel code resource of old link for the change-over time of network side setting.
6, method according to claim 1 is characterized in that, be provided with by network side described change-over time for network side and UE setting; Wherein be handed down to UE by the link transforming message change-over time that is provided with for UE.
7, method according to claim 6 is characterized in that, described network side is handed down to UE by old link with the link transforming message.
8, method according to claim 1 is characterized in that, the concrete grammar that described network side disposes new link is: network side is the channel code on the different code trees with old link of new link configuration.
9, method according to claim 1 is characterized in that, it is to be undertaken by the mode of radio link reconfiguration that described network side disposes new link.
10, method according to claim 1 is characterized in that, it is to be undertaken by the mode that Radio Link is set up that described network side disposes new link.
11, according to each described method of claim 1 to 10, it is characterized in that, described network side is UTRAN, the Control Node of this network side is RNC, the via node of this network side is a base station node B, and described link transforming message is that message or Radio Link carrying reconfiguration message are set up in the Radio Link carrying.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US11082331B2 (en) | 2016-04-01 | 2021-08-03 | Qualcomm Incorporated | Interworking with legacy radio access technologies for connectivity to next generation core network |
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| CN101742416B (en) * | 2009-12-14 | 2013-01-16 | 中兴通讯股份有限公司 | Terminal for digital cluster system and method for processing broadcast channel message thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11082331B2 (en) | 2016-04-01 | 2021-08-03 | Qualcomm Incorporated | Interworking with legacy radio access technologies for connectivity to next generation core network |
| US11374853B2 (en) | 2016-04-01 | 2022-06-28 | Qualcomm Incorporated | Interworking with legacy radio access technologies for connectivity to next generation core network |
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