CN102196516A - Cell reselection method between networks of different systems - Google Patents
Cell reselection method between networks of different systems Download PDFInfo
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- CN102196516A CN102196516A CN2011101759415A CN201110175941A CN102196516A CN 102196516 A CN102196516 A CN 102196516A CN 2011101759415 A CN2011101759415 A CN 2011101759415A CN 201110175941 A CN201110175941 A CN 201110175941A CN 102196516 A CN102196516 A CN 102196516A
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Abstract
The invention provides a cell reselection method between networks of different systems, comprising the following steps of measuring a first network cell signal intensity and a second network cell signal intensity by using user equipment residing on a first network cell; reselecting the user equipment to a second network cell after Srxlev (Srxlevel) of the first network cell is less than an absolute threshold of the first network cell Qrxlevmeas of the second network cell is more than an absolute threshold of the second network cell and a reselection delay time duration is sustained; and finitely selecting a cell with the best signal intensity for reselection while multiple cells in the second network satisfy the condition. According to the method, the absolute threshold is introduced, therefore, the UE can residue on a certain network, as long as when a resident network receiving signal is less than a certain tolerance value, the UE can be reselected to another network without influencing the residing on the current network due to the signal intensity of the another network, the standby time of a UE terminal is effectively prolonged, and business service continuity is increased.
Description
[technical field]
The present invention relates to wireless network communication technique, particularly a kind of subscriber equipment (UE) residence reselecting between networks with different systems.
[background technology]
UE needs to monitor at any time the signal level of current area and neighbor cell under idle pulley, provide service to select a best sub-district, Here it is cell reselection process.Identical under sub-district reselection criterion under the connection mode and the idle pulley, must satisfy following criterion:
TD (Time Division-Synchronous Code Division Multiple Access, the CDMA (Code Division Multiple Access) that the time-division is synchronous) network reselection criterion:
(1) UE is at the resident Treselection that surpasses of current service cell;
(2) current service cell Srxlev starts measurement less than some values (the gravity treatment thresholding of co-frequency cell or alien-frequency district or intersystem cell);
(3) current service cell Qrxlevmeas+Qhyst carries out gravity treatment less than adjacent sub-district Qrxlevmeas-Qoffset and lasting Treselection after the time.
Srxlev is a sub-district received signal value (dB); Qrxlevmeas is that PCCPCH (Primary Common Control Physical Channel) goes up the signal code power value that receives.
GSM (Global System for Mobile Communications, global system for mobile communications) network reselection criterion:
When the TD signal than current GSM RSSI＞=TD_Offset*4-32 (dbm), and lasting 5s is when above, terminal is carried out the reuse adoption process of TD network.It is that the existing protocol regulation is dead that GSM is fixed as 5s to the gravity treatment timer of TD network, can increase configurable timer, also can use existing protocol 5S timer.
Existing reselection criterion, respectively in the TD network, gravity treatment in the GSM network, topic between not existing.But for gravity treatment between TD network, GSM network, just there are the following problems:
See also shown in Figure 1 because GSM, TD network coverage difference cause terminal frequent gravity treatment between GSM, TD network; Description is learnt according to aforementioned criteria, TD network, GSM network reselection criterion are used relative threshold, if the TD network to GSM network reselection relative threshold less than 20dB, the GSM net to TD net gravity treatment thresholding also less than 20dB, when then the UE terminal moves in Fig. 1 two places, will frequently carry out gravity treatment between system, the stand-by time of UE terminal is shortened greatly; Being unfavorable for also that the UE terminal is stable resides in a certain network, and the continuity of business service also is affected; Perhaps when one of them network stabilization, and another network also can cause constantly gravity treatment between two networks of UE when fluctuation ratio is big up and down.
In the zone of carrying out the TD networking, there is the GSM network coverage in existing network equally; Therefore, be necessary to propose the method for a kind of new UE terminal, to solve the problems of the technologies described above in TD sub-district and the gravity treatment of GSM minizone.
[summary of the invention]
The purpose of this invention is to provide residence reselecting between a kind of networks with different systems, it can effectively reduce subscriber equipment gravity treatment frequency between networks with different systems, effectively prolong the stand-by time of UE terminal, make stable a certain network, the continuity of increase business service of residing in of UE terminal.
To achieve these goals, the present invention adopts following technical scheme:
Residence reselecting between a kind of networks with different systems may further comprise the steps: the subscriber equipment that resides in first network cell is measured the first network cell signal strength signal intensity and the second network cell signal strength signal intensity; When the absolute thresholding of the first network cell Srxlev less than first network cell, and the second network cell Qrxlevmeas is greater than the absolute thresholding of second network cell and continue reselection delay after the time, and subscriber equipment reselects to second network cell.
The absolute thresholding of described first network cell is more than or equal to the lowest service pilot tone of subscriber equipment at first network cell; The absolute thresholding of described second network cell is more than or equal to the lowest service pilot tone of subscriber equipment at second network cell.
Described subscriber equipment can't be served under the situation of the lowest service pilot tone that is lower than described first network cell.
Described subscriber equipment can't be served under the situation of the lowest service pilot tone that is lower than described second network cell.
First network is one of GSM network, TD-SCDMA network, WCDMA network, CDMA2000 network, cdma network, LTE network; Second network is one of GSM network, TD-SCDMA network, WCDMA network, CDMA2000 network, cdma network, LTE network and different with first network formats.
The described reselection delay time is configured by the gravity treatment timer; The described reselection delay time is 0～31S.
The absolute door of described first network cell is limited to-105～91dB, and the absolute door of described second network cell is limited to-105～91dB.
Described first network is the TD-SCDMA network, and described subscriber equipment in the lowest service pilot tone of first network cell is-85dB; Described second network is the GSM network, and described subscriber equipment in the lowest service pilot tone of second network cell is-90dB; Perhaps, described first network is the GSM network, and described subscriber equipment in the lowest service pilot tone of first network cell is-90dB; The described second network TD-SCDMA network, described subscriber equipment in the lowest service pilot tone of second network cell is-85dB.
Described first network is the TD-SCDMA network, and the absolute door of described first network cell is limited to-75dB; Described second network is the GSM network, and the absolute door of described second network cell is limited to-80dB.
Described first network is the GSM network, and the absolute door of described first network cell is limited to-85dB; Described second network is the TD-SCDMA network, and the absolute door of described second network cell is limited to-70dB.
Compared with prior art, the present invention has the following advantages: the present invention improves existing reselecting method, introduce absolute thresholding, promptly work as Serving cell Srxlev less than a certain absolute thresholding, and adjacent sub-district Qrxlevmeas is greater than a certain absolute thresholding, and lasting a period of time of setting, be initiated to the gravity treatment of adjacent sub-district again; The present invention works as adjacent networks with different systems has a plurality of sub-districts to satisfy condition, and gravity treatment is carried out in the best sub-district of limited selection signal strength signal intensity.Can guarantee like this UE resident to a certain network, has only the residing network received signal of working as less than a certain tolerance value, just can gravity treatment arrive another network, and can be because another network signal is strong and weak influence resident in current network, effectively prolong the stand-by time of UE terminal, increase the continuity of business service.
[description of drawings]
Fig. 1 is subscriber equipment gravity treatment schematic diagram between TD network and GSM network.
[embodiment]
In GSM, TD network reselection criterion, owing to have only relative threshold, the difference of subscriber equipment signal quality between GSM, TD network is just carried out gravity treatment during greater than this relative threshold; Cause the UE terminal between GSM, TD network during gravity treatment, gravity treatment is frequent, and the stand-by time of UE terminal is shortened greatly; Being unfavorable for also that the UE terminal is stable resides in a certain network, and the continuity of business service also is affected.
The present invention improves existing reselecting method, introduces absolute thresholding, promptly when Serving cell Srxlev less than a certain absolute thresholding, and adjacent sub-district Qrxlevmeas is greater than a certain absolute thresholding, and continues a period of time of setting, is initiated to the gravity treatment of adjacent sub-district again.Can guarantee like this UE resident to a certain network (GSM or TD), have only when the residing network received signal less than a certain tolerance value, just can gravity treatment to another network, and can not influence resident in current network because another network signal is strong and weak.
The tolerance value is the absolute door limit value of residing network; The absolute door limit value of residing network is more than or equal to the lowest service pilot tone of UE in the residing network sub-district, and UE can't carry out normal service under the situation of the lowest service pilot tone that is lower than the residing network sub-district.Same, the absolute door limit value of objective network is more than or equal to the lowest service pilot tone of UE in the objective network sub-district, and UE can't carry out normal service under the situation of the lowest service pilot tone that is lower than the objective network sub-district.
When between system, carrying out the sub-district gravity treatment, can use this reselecting method, in system, during gravity treatment, keep original reselection criterion.
Parameter is as follows:
The TD network need increase following parameter:
The TD network is to GSM network reselection criterion: Srxlev＜Select Reselect Serv AddTh and Gsm Qrxlevmeas＞Select Reselect Gsm AddTh, and lasting Select Reselect Treselection is long-time, promptly is initiated to the GSM network reselection.
The GSM network need increase following parameter:
The GSM network is to TD network reselection criterion: Srxlev＜Select Reselect Serv AddTh and TD Qrxlevmeas＞Select Reselect Td AddTh, and lasting 5S is long-time, promptly is initiated to the TD network reselection.
The inventive method adapts to gravity treatment between all networks with different systems.
Lift a specific embodiment below the present invention is done further introduction.
The network looks: TD network power scope (50～-110dB), can carry out fine service at-75dB, GSM network power scope (50～-110dB), can finely serve at-85dB.
The threshold setting of TD network:
Select?Reselect?Gsm?AddTh＝-80dB
Select?Reselect?Serv?AddTh ＝-75dB
The threshold setting of GSM network:
Select?Reselect?Td?AddTh＝-70dB
Select?Reselect?Serv?AddTh＝-85dB
Be provided with like this and can solve two inhomogeneous frequent gravity treatments that cause of the network coverage, these values will be seen also network need reach service quality at that time and carry out suitable adjustment certainly.
Claims (10)
1. residence reselecting between a networks with different systems is characterized in that, may further comprise the steps:
The subscriber equipment that resides in first network cell is measured the first network cell signal strength signal intensity and the second network cell signal strength signal intensity;
When the absolute thresholding of the first network cell Srxlev less than first network cell, and the second network cell Qrxlevmeas is greater than the absolute thresholding of second network cell and continue reselection delay after the time, and subscriber equipment reselects to second network cell.
2. residence reselecting between a kind of according to claim 1 networks with different systems is characterized in that: the absolute thresholding of described first network cell is more than or equal to the lowest service pilot tone of subscriber equipment at first network cell; The absolute thresholding of described second network cell is more than or equal to the lowest service pilot tone of subscriber equipment at second network cell.
3. as residence reselecting between a kind of networks with different systems as described in the claim 2, it is characterized in that: described subscriber equipment can't be served under the situation of the lowest service pilot tone that is lower than described first network cell.
4. as residence reselecting between a kind of networks with different systems as described in claim 2 or 3, it is characterized in that: described subscriber equipment can't be served under the situation of the lowest service pilot tone that is lower than described second network cell.
5. residence reselecting between a kind of according to claim 1 networks with different systems is characterized in that: first network is one of GSM network, TD-SCDMA network, WCDMA network, CDMA2000 network, cdma network, LTE network; Second network is one of GSM network, TD-SCDMA network, WCDMA network, CDMA2000 network, cdma network, LTE network and different with first network formats.
6. residence reselecting between a kind of according to claim 1 networks with different systems is characterized in that: the described reselection delay time is configured by the gravity treatment timer; The described reselection delay time is 0～31S.
7. residence reselecting between a kind of according to claim 1 networks with different systems, it is characterized in that: the absolute door of described first network cell is limited to-105～91dB, and the absolute door of described second network cell is limited to-105～91dB.
8. as residence reselecting between a kind of networks with different systems as described in the claim 2, it is characterized in that:
Described first network is the TD-SCDMA network, and described subscriber equipment in the lowest service pilot tone of first network cell is-85dB; Described second network is the GSM network, and described subscriber equipment in the lowest service pilot tone of second network cell is-90dB;
Perhaps, described first network is the GSM network, and described subscriber equipment in the lowest service pilot tone of first network cell is-90dB; The described second network TD-SCDMA network, described subscriber equipment in the lowest service pilot tone of second network cell is-85dB.
9. residence reselecting between a kind of according to claim 1 networks with different systems is characterized in that: described first network is the TD-SCDMA network, and the absolute door of described first network cell is limited to-75dB; Described second network is the GSM network, and the absolute door of described second network cell is limited to-80dB.
10. residence reselecting between a kind of according to claim 1 networks with different systems is characterized in that: described first network is the GSM network, and the absolute door of described first network cell is limited to-85dB; Described second network is the TD-SCDMA network, and the absolute door of described second network cell is limited to-70dB.
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| CN2011101759415A CN102196516A (en) | 2011-06-28 | 2011-06-28 | Cell reselection method between networks of different systems |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103024839A (en) * | 2012-11-21 | 2013-04-03 | 中兴通讯股份有限公司 | Cell reselecting method and device, and base station |
| CN103814591A (en) * | 2013-11-25 | 2014-05-21 | 华为技术有限公司 | Communication method, access network equipment and UE (user equipment) of different-format networks |
| CN103916921A (en) * | 2012-12-31 | 2014-07-09 | 展讯通信（上海）有限公司 | Mobile terminal and different system cell reselection method thereof |
| WO2015131530A1 (en) * | 2014-09-23 | 2015-09-11 | 中兴通讯股份有限公司 | Terminal-resident network selecting method, device and terminal |
| CN106851755A (en) * | 2017-01-19 | 2017-06-13 | 广东欧珀移动通信有限公司 | A kind of cell registration method and device |
| CN107864485A (en) * | 2017-12-21 | 2018-03-30 | 广东欧珀移动通信有限公司 | Detection method and device, computer-readable storage medium |
| CN108040348A (en) * | 2017-12-01 | 2018-05-15 | 广东欧珀移动通信有限公司 | The detection method and device of network insertion result, computer-readable storage medium |
| CN110621047A (en) * | 2019-11-06 | 2019-12-27 | Oppo（重庆）智能科技有限公司 | Operator network switching method and device and computer readable storage medium |
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| CN101646197A (en) * | 2008-08-07 | 2010-02-10 | 中国移动通信集团公司 | Method, equipment and system for reselecting cells among systems |
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| CN1604686A (en) * | 2003-09-26 | 2005-04-06 | 三星电子株式会社 | Access network selection apparatus and method in a heterogeneous system |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103024839B (en) * | 2012-11-21 | 2015-08-12 | 中兴通讯股份有限公司 | Residence reselecting and device, base station |
| US9526052B2 (en) | 2012-11-21 | 2016-12-20 | Zte Corporation | Cell reselection method and apparatus, base station |
| CN103024839A (en) * | 2012-11-21 | 2013-04-03 | 中兴通讯股份有限公司 | Cell reselecting method and device, and base station |
| CN103916921A (en) * | 2012-12-31 | 2014-07-09 | 展讯通信（上海）有限公司 | Mobile terminal and different system cell reselection method thereof |
| CN103916921B (en) * | 2012-12-31 | 2017-08-08 | 展讯通信（上海）有限公司 | Mobile terminal and its reselecting method of different system cell |
| CN103814591B (en) * | 2013-11-25 | 2019-04-05 | 华为技术有限公司 | Communication means, access network equipment and UE in a kind of different standard network |
| CN103814591A (en) * | 2013-11-25 | 2014-05-21 | 华为技术有限公司 | Communication method, access network equipment and UE (user equipment) of different-format networks |
| WO2015074271A1 (en) * | 2013-11-25 | 2015-05-28 | 华为技术有限公司 | Communications method, access network device, and ue in heterogeneous network |
| US9854479B2 (en) | 2013-11-25 | 2017-12-26 | Huawei Technologies Co., Ltd. | Communication method in inter-RAT network, access network device and UE |
| WO2015131530A1 (en) * | 2014-09-23 | 2015-09-11 | 中兴通讯股份有限公司 | Terminal-resident network selecting method, device and terminal |
| CN105517114A (en) * | 2014-09-23 | 2016-04-20 | 中兴通讯股份有限公司 | Selection method and apparatus of terminal residence network, and terminal |
| CN106851755A (en) * | 2017-01-19 | 2017-06-13 | 广东欧珀移动通信有限公司 | A kind of cell registration method and device |
| WO2018133519A1 (en) * | 2017-01-19 | 2018-07-26 | 广东欧珀移动通信有限公司 | Cell registration method and apparatus |
| CN106851755B (en) * | 2017-01-19 | 2020-07-17 | Oppo广东移动通信有限公司 | Cell registration method and device |
| CN108040348A (en) * | 2017-12-01 | 2018-05-15 | 广东欧珀移动通信有限公司 | The detection method and device of network insertion result, computer-readable storage medium |
| CN108040348B (en) * | 2017-12-01 | 2020-09-22 | Oppo广东移动通信有限公司 | Method and device for detecting network access result and computer storage medium |
| CN107864485A (en) * | 2017-12-21 | 2018-03-30 | 广东欧珀移动通信有限公司 | Detection method and device, computer-readable storage medium |
| CN110621047A (en) * | 2019-11-06 | 2019-12-27 | Oppo（重庆）智能科技有限公司 | Operator network switching method and device and computer readable storage medium |
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Application publication date: 20110921 |