CN101765182B - Method for redirecting user terminal - Google Patents
Method for redirecting user terminal Download PDFInfo
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- CN101765182B CN101765182B CN2008102407695A CN200810240769A CN101765182B CN 101765182 B CN101765182 B CN 101765182B CN 2008102407695 A CN2008102407695 A CN 2008102407695A CN 200810240769 A CN200810240769 A CN 200810240769A CN 101765182 B CN101765182 B CN 101765182B
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Abstract
The invention discloses a method for redirecting a user terminal, which comprises the following steps of: acquiring a frequency point and a scrambler list carried by a received REC (radio resource control) connection reject message by UE (user equipment), searching a scrambler in the scrambler list under the acquired frequency point, and requesting for accessing into a wireless network in a cell corresponding to the searched scrambler; or, acquiring a frequency point and a scrambler list carried by a received REC (radio resource control) connection release message by UE (user equipment), searching a scrambler in the scrambler list under the acquired frequency point, and requesting for residing in a cell corresponding to the searched scrambler. By adopting the method of the invention, the redirecting of the UE can be realized under the condition of co-frequency networking.
Description
Technical field
The present invention relates to terminal, communications field access technology, in particular, is a kind of method of redirecting user terminal.
Background technology
Home eNodeB (HomeNodeB) is a kind of femtocell, is mainly single family or the minimized office district provides the indoor high-speed wireless access.Has only a UMTS (UMTS on the general HomeNodeB; Universal Mobile Telecommunications System) sub-district; Can be very limited on HomeNodeB with the UE number of designated lane (DCH, Dedicated Channel) access wireless network, therefore; Regular meeting appears at HomeNodeB and has upward reached maximum constraints with the UE number that DCH inserts; Also have UE to continue request inserts wireless network on this HomeNodeB situation, when this situation occurring, go up UE and can only insert wireless network with DCH if be set in this HomeNodeB in advance; Then the request meeting of UE is refused by HomeNodeB at Radio Resource control (RRC, Radio Resource Control) connection establishment stage; On this HomeNodeB, do not insert wireless network if do not limit UE with DCH; Whether the type of service decision UE that is then initiated by UE can insert wireless network on this HomeNodeB, if the type of service that UE initiates is the business that requirement must be passed through the DCH service data transmission, for example session service; The request meeting of UE is at RAB (RAB; Radio Access Bearer) establishment stage, promptly professional establishment stage will be refused by HomeNodeB; If the business that UE initiates is less demanding to transmission channel, UE can insert wireless network with Common transport channel on this HomeNodeB.And the UE request is after the access wireless network is rejected on this HomeNodeB; Can be owing to the signal of HomeNodeB in the coverage of HomeNodeB is stronger; UE still asks on this HomeNodeB, to insert repeatedly; Cause setting up number of times up to the maximum connection of setting and can't insert wireless network, cause access failure, said maximum connection is set up number of times and is generally three times.
At present; In order to solve the problem of above-mentioned UE access failure on HomeNodeB, for inter-frequency networking, promptly the frequency of the part or all of adjacent area of HomeNodeB is different with the frequency of this HomeNodeB; When HomeNodeB refuses the access request of UE; Can fill in frequency in RRC connection refusal (RRC CONNECTION REJECT) message or being redirected in (ReDirection) information of RRC connection release (RRC CONNECTION RELEASE) message, the frequency of being filled in is the frequency of HomeNodeB adjacent area, and the frequency that requirement is filled in is different with the HomeNodeB frequency; Like this; After UE receives RRC CONNECTION REJECT message or RRC CONNECTION RELEASE message, i.e. sub-district under the frequency in the first search redirection information is if search; UE then asks to insert wireless network in the sub-district that is searched, and is about to UE and is redirected to the sub-district that is searched; If can not insert, UE can random search also attempt inserting in the sub-district that is being searched.And in order to practice thrift cost; Operator is probably with HomeNodeB sub-district and its adjacent area identical networking; Be that HomeNodeB is identical with the frequency of its adjacent area, like this, then can't find the frequency of the HomeNodeB adjacent area different with the HomeNodeB frequency; Can not avoid the influence of the signal of HomeNodeB through the method for filling in frequency in the redirection information; Promptly adopt said method can not solve under the identical networking situation, the UE request asks on this HomeNodeB, to insert the problem that causes access failure repeatedly after the access wireless network is rejected on this HomeNodeB.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of method of redirecting user terminal, can realize being redirected of UE under the identical networking situation.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of method of redirecting user terminal, this method may further comprise the steps:
UE obtains frequency and the scrambler tabulation that Home eNodeB HomeNodeB provides, the scrambler under the frequency that is obtained in the tabulation of search scrambler, and request inserts wireless network in the scrambler corresponding district that is searched;
The said scrambler of under the frequency that is obtained, searching in the scrambler tabulation comprises:
A1, first scrambler under the frequency that is obtained in this scrambler tabulation of search if search, finish this search; If do not search, the next scrambler under the frequency that is obtained in the tabulation of the said scrambler of search up to searching, finishes this search, or in not searching this scrambler tabulation any scrambler, execution in step b1;
All the other scramblers except that the scrambler that said scrambler tabulation comprises under the frequency that b1, search are obtained if search, finish this search; If do not search, execution in step c1;
Beyond the frequency that c1, search are obtained, the scrambler under other frequency if search, finishes this search; If do not search, UE searches for different system cell or returns idle IDLE attitude.
Further, said UE obtains frequency and the scrambler tabulation that Home eNodeB HomeNodeB provides and comprises:
UE receives the RRC connection refusal RRC CONNECTION REJECT message that Home eNodeB HomeNodeB sends;
UE resolves the entrained redirected field of RRC CONNECTION REJECT message that receives, and obtains the frequency and the scrambler tabulation of HomeNodeB appointment.
Further, said UE obtains frequency and the scrambler tabulation that Home eNodeB HomeNodeB provides and comprises:
UE receives the RRC connection release RRC CONNECTION RELEASE message that Home eNodeB HomeNodeB sends;
UE resolves the entrained redirected field of RRC CONNECTION RELEASE message that receives, and obtains the frequency and the scrambler tabulation of HomeNodeB appointment.
The method of redirecting user terminal provided by the present invention has following advantage and characteristics:
The sub-district of first search when the present invention directly specifies UE to be redirected; Can solve under the identical networking situation, the UE request asks on this HomeNodeB, to insert the problem that causes access failure repeatedly after the access wireless network is rejected on this HomeNodeB; And; Can select flexibly signal is stronger in the HomeNodeB adjacent area sub-district to improve Cell searching efficient, and improve the success rate that UE in the HomeNodeB coverage inserts wireless network greatly as the first search sub-district.
Description of drawings
Fig. 1 is the realization flow figure of the embodiment of the invention one redirecting user terminal method;
Fig. 2 is the realization flow figure of embodiment of the invention two-fold directional user terminal method.
Embodiment
Basic thought of the present invention is: through filling in the tabulation of frequency and scrambler; Specify the sub-district of first search for UE; No longer need limit the frequency of filling in must be different with the frequency of HomeNodeB; Solved under the identical networking situation since in the HomeNodeB coverage signal of HomeNodeB strong, UE can only be from the problem of HomeNodeB sub-district access under the frequency of HomeNodeB; And can be flexibly with signal is stronger in the HomeNodeB adjacent area sub-district as the first search sub-district; Promptly adjust UE selects to insert the sub-district in the HomeNodeB coverage order; And then improve Cell searching efficient, improve the success rate of UE access wireless network in the HomeNodeB coverage greatly.The sub-district of said first search is meant that institute fills under the frequency scrambler corresponding district in the tabulation of said scrambler.
In the embodiment of the invention one, set UE and on HomeNodeB, can only insert wireless network with DCH, promptly require RRC to connect and be based upon on the DCH, the said flow process of the embodiment of the invention is carried out after UE makes a call.
The realization flow of the embodiment of the invention one redirecting user terminal method is as shown in Figure 1, may further comprise the steps:
Step 101:UE initiates RRC through common signal channel to HomeNodeB in the HomeNodeB sub-district and connects the request of setting up (RRC CONNECTION REQUEST).
Step 102:HomeNodeB detects the DCH resource congestion of self; In the redirected field of RRC CONNECTION REJECT message, fill in the tabulation of frequency and scrambler; Specify the sub-district of first search for UE; Send this RRC CONNECTION REJECT message to UE, the request that refusal UE inserts on this HomeNodeB.
Wherein, the frequency of filling in is the frequency of HomeNodeB; Scrambler in the tabulation of said scrambler is taken from the scrambler under institute's frequency of filling in the HomeNodeB Neighboring Cell List, comprises one or more in the scrambler of HomeNodeB adjacent area during promptly said scrambler is tabulated, and said HomeNodeB adjacent area comprises HomeNodeB macrocell of living in.
Step 103:UE receives RRC CONNECTION REJECT message, resolves the entrained redirected field of RRC CONNECTION REJECT message, obtains the frequency and the scrambler tabulation of HomeNodeB appointment.
Step 104: specify first scrambler in this scrambler tabulation of search under the frequency at this, if search, then execution in step 108, if do not search, then execution in step 105.
Step 105: the next scrambler under filling in frequency in the said scrambler tabulation of search, up to searching execution in step 108; Perhaps, any scrambler in not searching this scrambler tabulation, execution in step 106.
Scrambler in the said scrambler tabulation is selected from the Neighboring Cell List of HomeNodeB; Be that the scrambler corresponding district is one or more in the HomeNodeB adjacent area; Signal at place, UE present position is stronger, and therefore, the probability of scrambler was very little during step 104,105 search were tabulated less than sign indicating number.
Step 106: under search institute's frequency of filling in except that said scrambler all the other scramblers the scrambler that comprises of tabulating, if search, execution in step 108; If do not search, execution in step 107.
Step 107: search is specified beyond the frequency, the scrambler under other frequency, and after searching, execution in step 108; Otherwise, execution in step 109.
Step 108:UE initiates RRC in the sub-district that new search arrives and connects the request of foundation, attempts again inserting.
Step 109:UE searches for different system cell or returns free time (IDLE) attitude, for example searches for global mobile communcations system (GSM) sub-district.
In the embodiment of the invention two; If not being limited to this HomeNodeB goes up with DCH access wireless network; Be that the RRC connection can be based upon on DCH or the Common transport channel; As be based upon on forward access channel (FACH), the RACH Common transport channels such as (RACH), the said access process of the embodiment of the invention carries out after UE makes a call.
The realization flow of embodiment of the invention two-fold directional user terminal method is as shown in Figure 2, may further comprise the steps:
Step 201:UE initiates RRC through common signal channel to HomeNodeB in the HomeNodeB sub-district and connects the request of setting up (RRC CONNECTION REQUEST).
Step 202:HomeNodeB sends RRC to UE and connects foundation (RRC CONNCECTION SETUP) message.
Step 203:UE is connected RRC and sets up on the common signal channel successfully, successfully inserts wireless network, replys the RRC connection to HomeNodeB and sets up successfully (RRC CONNECTION SETUP COMPLETE) message.
Step 204: core net is sent RAB assignment request (RAB ASSIGNMENT REQUEST) message to HomeNodeB, and request HomeNodeB distribution service is set up resource needed.In the embodiment of the invention, the UE initiation session is professional, thereby professional foundation needs DCH.
Step 205:HomeNodeB detects the DCH resource congestion of self; Reply RAB to core net and assign failure response (RAB ASSIGNMENT RESPONSE); After core net is received RAB ASSIGNMENT RESPONSE, send IU interface release command (IU RELEASE COMMAND) and give HomeNodeB.
After step 206:HomeNodeB receives IU RELEASE COMMAND; In the redirected field of RRC CONNECTION RELEASE message, fill in the tabulation of frequency and scrambler; Specify the sub-district of first search for UE; Send this RRC CONNECTION RELEASE message to UE, the request that refusal UE inserts on this HomeNodeB.
Wherein, the frequency of filling in is the frequency of HomeNodeB; Scrambler in the tabulation of said scrambler is taken from the scrambler under institute's frequency of filling in the HomeNodeB Neighboring Cell List, comprises one or more in the HomeNodeB adjacent area during promptly said scrambler is tabulated, and said HomeNodeB adjacent area comprises HomeNodeB macrocell of living in.
Step 207:UE receives RRC CONNECTION RELEASE message, resolves the redirected field of RRC CONNECTION RELEASE message, obtains the frequency and the scrambler tabulation of HomeNodeB appointment.
Step 208: specify first scrambler in this scrambler tabulation of search under the frequency at this, if search, then execution in step 212, if do not search, then execution in step 209.
Step 209: the next scrambler under filling in frequency in the said scrambler tabulation of search, up to searching execution in step 212; Perhaps, any scrambler in not searching this scrambler tabulation, execution in step 210.
Scrambler in the said scrambler tabulation is selected from the Neighboring Cell List of HomeNodeB; Be that the scrambler corresponding district is one or more in the HomeNodeB adjacent area; Signal at place, UE present position is stronger, and therefore, the probability of scrambler was very little during step 208,209 search were tabulated less than sign indicating number.
Step 210: under search institute's frequency of filling in except that said scrambler all the other scramblers the scrambler that comprises of tabulating, if search, execution in step 212; If do not search, execution in step 211.
Step 211: search is specified beyond the frequency, the scrambler under other frequency, and after searching, execution in step 212; Otherwise, execution in step 213.
Step 212:UE new search to the sub-district carry out residently, wait the user to initiate business again.
Step 213:UE searches for different system cell, if search, new search to the sub-district carry out resident; Otherwise, show to can not find any network signal, finish this flow process; For example search for global mobile communcations system (GSM) sub-district.
The above is merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention.
Claims (3)
1. the method for a redirecting user terminal is characterized in that, this method may further comprise the steps:
UE obtains frequency and the scrambler tabulation that Home eNodeB HomeNodeB provides, the scrambler under the frequency that is obtained in the tabulation of search scrambler, and request inserts wireless network in the scrambler corresponding district that is searched;
The said scrambler of under the frequency that is obtained, searching in the scrambler tabulation comprises:
A1, first scrambler under the frequency that is obtained in this scrambler tabulation of search if search, finish this search; If do not search, the next scrambler under the frequency that is obtained in the tabulation of the said scrambler of search up to searching, finishes this search, or in not searching this scrambler tabulation any scrambler, execution in step b1;
All the other scramblers except that the scrambler that said scrambler tabulation comprises under the frequency that b1, search are obtained if search, finish this search; If do not search, execution in step c1;
Beyond the frequency that c1, search are obtained, the scrambler under other frequency if search, finishes this search; If do not search, UE searches for different system cell or returns idle IDLE attitude.
2. according to the method for the said redirecting user terminal of claim 1, it is characterized in that frequency and scrambler tabulation that said UE obtains Home eNodeB HomeNodeB to be provided comprise:
UE receives the RRC connection refusal RRC CONNECTION REJECT message that Home eNodeB HomeNodeB sends;
UE resolves the entrained redirected field of RRC CONNECTION REJECT message that receives, and obtains the frequency and the scrambler tabulation of HomeNodeB appointment.
3. according to the method for the said redirecting user terminal of claim 1, it is characterized in that frequency and scrambler tabulation that said UE obtains Home eNodeB HomeNodeB to be provided comprise:
UE receives the RRC connection release RRC CONNECTION RELEASE message that Home eNodeB HomeNodeB sends;
UE resolves the entrained redirected field of RRC CONNECTION RELEASE message that receives, and obtains the frequency and the scrambler tabulation of HomeNodeB appointment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102407695A CN101765182B (en) | 2008-12-23 | 2008-12-23 | Method for redirecting user terminal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102407695A CN101765182B (en) | 2008-12-23 | 2008-12-23 | Method for redirecting user terminal |
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| Publication Number | Publication Date |
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| CN101765182A CN101765182A (en) | 2010-06-30 |
| CN101765182B true CN101765182B (en) | 2012-07-18 |
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| CN2008102407695A Expired - Fee Related CN101765182B (en) | 2008-12-23 | 2008-12-23 | Method for redirecting user terminal |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103327554A (en) * | 2012-03-19 | 2013-09-25 | 中兴通讯股份有限公司 | Redirecting method and redirecting device |
| CN105722171B (en) * | 2014-12-04 | 2019-04-19 | 中国移动通信集团福建有限公司 | Reorientation method and device |
| CN112055386B (en) * | 2019-06-06 | 2022-04-29 | 成都鼎桥通信技术有限公司 | Resident carrier selection method and equipment |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1674466A (en) * | 1999-08-17 | 2005-09-28 | 三星电子株式会社 | Method for communicating scrambling code id in mobile communication system |
| CN1770906A (en) * | 2004-11-05 | 2006-05-10 | 上海华为技术有限公司 | Same frequency hard handoff method |
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2008
- 2008-12-23 CN CN2008102407695A patent/CN101765182B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1674466A (en) * | 1999-08-17 | 2005-09-28 | 三星电子株式会社 | Method for communicating scrambling code id in mobile communication system |
| CN1770906A (en) * | 2004-11-05 | 2006-05-10 | 上海华为技术有限公司 | Same frequency hard handoff method |
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| Publication number | Publication date |
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| CN101765182A (en) | 2010-06-30 |
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Effective date of registration: 20170817 Address after: 243100 Anhui province Dangtu County Shiqiao Town Yongxin village village natural Village No. 44 Patentee after: Chi Ying Address before: 518057 Nanshan District Guangdong high tech Industrial Park, South Road, science and technology, ZTE building, Ministry of Justice Patentee before: ZTE Corporation |
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Granted publication date: 20120718 Termination date: 20171223 |
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