CN1168327C - Witching method between systems - Google Patents
Witching method between systems Download PDFInfo
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- CN1168327C CN1168327C CNB011449330A CN01144933A CN1168327C CN 1168327 C CN1168327 C CN 1168327C CN B011449330 A CNB011449330 A CN B011449330A CN 01144933 A CN01144933 A CN 01144933A CN 1168327 C CN1168327 C CN 1168327C
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Abstract
The present invention discloses a switching method between systems. The method comprises the steps that user equipment monitors the signal quality of an original cell, and when the monitored signal quality is lower than a predefined threshold, the UE sends a measurement result to a network which determines to adopt a special physical control channel gate control technology to carry out measurement between systems according to the sent result. DPCCH gate control parameters at the UE and a base station side and a transmission format set are configured; the UE and the network side carry out gate control according to the gate control parameters. The UE utilizes a clearance generated by the DPCCH gate control technology to synchronize adjacent system cells and measure the signal quality, and then sends a measurement result to the network which judges whether the switching between the systems needs carrying out or not according to the measurement result; if the switching needs carrying out, the network informs the UE to finish the switching between the systems in a designated time. The method not only can fully utilize the gate control clearance and enhance the resource utilization rate of the systems, but also can shorten the transmission interval of TPC and prevent the signal quality of original links in a switching region from reducing.
Description
Technical field
The present invention relates to subscriber equipment (UE) changing method between different base station, the especially changing method between system in the mobile communication system.
Background technology
In mobile communication system, UE, causes switching between system because the wireless access way of two base stations may be different at the switching problem that can relate to usually to the process that target BS moves from home base stations between the base station.Handover scheme utilizes compact model to finish between existing systems, concrete grammar is: when the signal quality that monitors original sub-district as UE is lower than certain predefine thresholding, measurement result is reported network, the network based result who reports, compressed-mode parameter by signaling configuration UE and base station side also starts compact model, the synchronous and signal quality measured of adjacent system cell carried out in the gap that UE produces by compact model, and measurement result reported network, network based reporting measurement result determines whether to carry out switching between system, when needs switch, UE switches by signaling, after UE receives switching command, getting in touch of the cut-out of the moment of appointment and original sub-district, connect with adjacent system cell.The key of switching between system is that the synchronous and measurement of adjacent system cell is carried out in the gap that utilizes compact model to produce.Because the gap that compact model produces is bigger, may cause the more power control bit information of losing, cause the data transmission link degradation, and between system in the handoff procedure, signal quality itself is variation just, need prevent that link-quality from reducing by accurate power controls, so the changing method between existing systems is unfavorable for preventing that link-quality from reducing.
Summary of the invention
The object of the present invention is to provide a kind of inter-system switching method that helps preventing the link-quality reduction.
For achieving the above object, inter-system switching method provided by the invention comprises:
(1) signal quality of the original sub-district of subscriber equipment (UE) monitoring when the signal quality that monitors is lower than the predefine thresholding, reports network with measurement result;
(2) the network based result who reports determines to adopt Dedicated Physical Control Channel (DPCCH) gating technology to carry out system's measurements, and the DPCCH gate parameter of configuration UE and base station side, and configuring transmission format collection (TFS);
(3) UE and network side carry out gate according to the gate parameter, and the synchronous and signal quality measured of adjacent system cell carried out in the gap that UE utilizes the DPCCH gating technology to produce, and measurement result is reported network;
(4) network based measurement result judges whether need carry out switching between system, and if desired, notice UE switches;
(5) UE is according to switching notice, finishes between system in the moment of appointment and switches.
Above-mentioned steps (3) also comprises: the data to packet domain (PS) cushion, and wait for after finish in the gate gap sending again, and the data of circuit domain (CS) are abandoned.
Foregoing can also be used following content to replace: the data to packet domain (PS) cushion, and wait for after finish in the gate gap sending again, for the data of circuit domain (CS), send and satisfy the data that TFS requires.
Above-mentioned steps (3) also comprises: during the gate gap, read through-put power control (TPC) information among the DPCCH, and utilize this information to keep the continuous of power control.
Because the present invention adopts DPCCH gate gap to carry out system's measurements, promptly can carry out the synchronous and measurement in sub-district, thereby finish the switching between system, so both made full use of the gate gap, improved the resource utilization of system, can shorten the transmission intercal of TPC again, therefore can prevent the reduction of Zone switched interior original link signal quality.
Description of drawings
Fig. 1 is the embodiment flow chart of the method for the invention;
Fig. 2 is gate gap figure;
Fig. 3 is a hand off signaling flow chart between the system that uses when of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.
The DPCCH gating technology is applicable to the up-downgoing data transmission link, when not having data to send, stops to send DPCCH, when data need send, recovers the transmission of DPCCH and DPDCH (Dedicated Physical Control Channel and Dedicated Physical Data Channel) again.Because gating technology adopts such scheme, compares with compact model, the gate gap that it produces in a Frame is discontinuous, makes that the gate gap is less, if the employing gating technology carries out the switching between system, can make the TPC information of losing less.Essence of the present invention is that the synchronous and measurement of intersystem cell is carried out in the gap that UE produces by the DPCCH gating technology, and it can keep the continuity of power control, the performance of switching between the raising system when the physical frame gap is provided.
Fig. 1 is the embodiment flow chart of the inventive method.Implement the present invention according to Fig. 1, the 1st step, the signal quality of the original sub-district of user equipment monitors, and the signal quality that monitors judged, when the signal quality that monitors is lower than the predefine thresholding, measurement result is reported network; In the 2nd step, the network based result who reports determines to adopt Dedicated Physical Control Channel (DPCCH) gating technology to carry out system's measurements, and the DPCCH gate parameter of configuration UE and base station side, and configuring transmission format collection (TFS); In the 3rd step, UE and network side carry out gate according to the gate parameter, and the synchronous and signal quality measured of adjacent system cell carried out in the gap that UE utilizes the DPCCH gating technology to produce, and measurement result is reported network.During the DPCCH gate gap in this step, the DPDCH for gate gap correspondence handles respectively according to data type, and the data in PS territory are cushioned, and waits for after the gap finishes sending again; And for the CS numeric field data, data are abandoned or sending part divided data only, but the size that sends data satisfies the requirement of TFS, because TFS is limited; During the gate gap in this step, also to read the TPC information among the DPCCH, and utilize this information to keep the continuous of power control, prevent the further variation of original link signal quality; In the 4th step, network based measurement result judges whether need carry out switching between system, and if desired, notice UE switches; In the 5th step, UE is according to switching notice, finishes between system in the moment of appointment and switches.
Compare with compact model, because therefore the gap that DPCCH gate gap produces less than compact model can use continuous several gates gap when the present invention specifically uses, altogether with reference to figure 2.Among the figure, S1 is the gate gap to S6, and narrow post is DPCCH partly, can S1 is synchronous as adjacent sub-district to S6 in the reality, and follow-up gap is used for measuring.
Be a concrete application example of the present invention below, with reference to figure 3.Shown in the figure, when the signal quality that UE monitors original sub-district is lower than certain predefine thresholding, the measurement result of original sub-district is reported the serving BS controller (SRNC) of network by measurement report signaling (Measurement Report), SRNC is according to the result who reports, determine to adopt the DPCCH gating technology to carry out system's measurements, send radio link reconfiguration demand signalling and radio bearer reconfiguration request signaling (Radio Link ReconfigurationRequest and Radio Bearer Recongfiguration Request) the DPCCH gate parameter of configurating base station side and UE side respectively to former cell base station (Home BS) and UE respectively then, and dispose limited TFS, after parameter configuration finished, Home BS and UE reshuffled the message that the signaling that finishes (RadioLink Reconfiguration Complete and Radio Bearer RecongfigurationComplete) finishes to the configuration of SRNC feedback parameter respectively by sending finish signaling and radio bearer of radio link reconfiguration.UE and network side are being specified constantly and startup DPCCH gating technology on the specific radio frames according to configuration parameter, the synchronous and signal quality measured of adjacent system cell carried out in the gap that UE produces by the DPCCH gating technology, during the gap, the advanced row buffering of high-rise data to the PS territory is waited for after the gap finishes sending data again; For the CS numeric field data, high-rise data being abandoned or sending part divided data only, the size that sends the CS numeric field data satisfies the requirement of limited TFS.UE is after finishing adjacent system cell measurement, with adjacent system cell measurement result by reporting network by measurement report signaling (Measurement Report), be SRNC, SRNC judges whether that according to the reporting measurement result needs carry out switching between system, if desired, SRNC and target base station controller (Target BSC) finish between system switch prepare after, SRNC carries out switching between system to switching command signaling between the UE transmitting system (INTER-SYSTEM HANDOVER COMMAND) notice UE, after UE receives switching command, getting in touch of the cut-out of the moment of appointment and original sub-district, connect with different system cell.Original sub-district, be that Home BS lost efficacy indication signaling (Radio Link Failure Indication) to the inefficacy of SRNC reporting links by Radio Link, SRNC deletes original sub-district link according to the link failure indication by send Radio Link removal request signaling (Radio LinkDelete Request) to Home BS.After UE and Target cell are set up link, finish signaling (HANDOVER COMPLETE) by switching again and report switching to finish to target base station controller.
Claims (3)
1, a kind of inter-system switching method comprises:
(1) signal quality of the original sub-district of user equipment monitors when the signal quality that monitors is lower than the predefine thresholding, reports network with measurement result;
(2) the network based result who reports determines to adopt the Dedicated Physical Control Channel gating technology to carry out system's measurements, and the Dedicated Physical Control Channel gate parameter of configure user equipment and base station side, and the configuring transmission format collection;
(3) subscriber equipment and network side carry out gate according to the gate parameter, and the synchronous and signal quality measured of adjacent system cell carried out in the gap that subscriber equipment utilizes the Dedicated Physical Control Channel gating technology to produce, and measurement result is reported network;
(4) network based measurement result judges whether need carry out switching between system, and if desired, notifying user equipment is switched;
(5) subscriber equipment is according to switching notice, finishes between system in the moment of appointment and switches.
2, inter-system switching method according to claim 1, it is characterized in that described step (3) also comprises: the data to packet domain cushion, wait for after finish in the gate gap and sending again, for the circuit domain data, data are abandoned or sending part divided data only, but the size that sends data satisfies the requirement of configuring transmission format collection.
3, the changing method between system according to claim 1 and 2, it is characterized in that described step (3) also comprises: during the gate gap, read the transmission power control information in the Dedicated Physical Control Channel, and utilize this information to keep the continuous of power control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011449330A CN1168327C (en) | 2001-12-24 | 2001-12-24 | Witching method between systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011449330A CN1168327C (en) | 2001-12-24 | 2001-12-24 | Witching method between systems |
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| Publication Number | Publication Date |
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| CN1429033A CN1429033A (en) | 2003-07-09 |
| CN1168327C true CN1168327C (en) | 2004-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB011449330A Expired - Fee Related CN1168327C (en) | 2001-12-24 | 2001-12-24 | Witching method between systems |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100681897B1 (en) * | 2004-01-26 | 2007-02-12 | 에스케이 텔레콤주식회사 | Method of Switching Multi-mode Multi-band Mobile Communication Terminal in Multi Access Communication Network |
| CN101073284B (en) * | 2005-02-07 | 2010-05-05 | 中兴通讯股份有限公司 | Method for controlling inter-system measurement and inter-frequency measurement |
| CN100362903C (en) * | 2005-05-11 | 2008-01-16 | 北京北方烽火科技有限公司 | A method of hard switch between heterogeneous systems for WCDMA system |
| CN100463564C (en) * | 2005-09-12 | 2009-02-18 | 大唐移动通信设备有限公司 | Switching back method after failure of relay switching |
| GB2443860B (en) * | 2006-10-19 | 2011-02-16 | Vodafone Plc | Controlling the use of access points in a telecommunications network |
| CN101312594B (en) * | 2007-05-25 | 2011-09-14 | 华为技术有限公司 | Switch method, communication system and apparatus |
| CN101335982B (en) * | 2007-06-28 | 2012-02-29 | 联想(北京)有限公司 | Method for mobile user equipment to control switching |
| CN102014424B (en) * | 2009-12-08 | 2014-08-20 | 电信科学技术研究院 | Measurement reporting method and equipment of carrier aggregation system |
| CN102547894B (en) * | 2012-01-12 | 2018-01-26 | 中兴通讯股份有限公司 | A kind of fast cell reselection method for dual-mode dual-standby and the terminal |
| US8885752B2 (en) * | 2012-07-27 | 2014-11-11 | Intel Corporation | Method and apparatus for feedback in 3D MIMO wireless systems |
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2001
- 2001-12-24 CN CNB011449330A patent/CN1168327C/en not_active Expired - Fee Related
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Owner name: BEIJING ZHIXUN HUOBAN TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: HUAWEI TECHNOLOGY CO., LTD. Effective date: 20150605 |
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Effective date of registration: 20150605 Address after: 100193 Beijing City, northeast of Haidian District, South Road, No. 29, building 3, room 4, room 4516 Patentee after: Beijing wisdom partner Technology Co., Ltd. Address before: 517057 Guangdong Shenzhen science and Technology Park HUAWEI road user service center building intellectual property department Patentee before: Huawei Technologies Co., Ltd. |
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