CN101404813B - Method for solving pilot frequency pseudo-random encoding confusion in switching course - Google Patents
Method for solving pilot frequency pseudo-random encoding confusion in switching course Download PDFInfo
- Publication number
- CN101404813B CN101404813B CN2008101770380A CN200810177038A CN101404813B CN 101404813 B CN101404813 B CN 101404813B CN 2008101770380 A CN2008101770380 A CN 2008101770380A CN 200810177038 A CN200810177038 A CN 200810177038A CN 101404813 B CN101404813 B CN 101404813B
- Authority
- CN
- China
- Prior art keywords
- cell
- pilot frequency
- information
- message
- frequency pseudo
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The invention provides a method used for solving pilot frequency pseudorandom coding confusion during switching. When information interaction is processed alternatively between accessed networks, if the information carries the pilot frequency pseudorandom coding of a target subdistrict, the information also carries subdistrict identification information of the target subdistrict. In AN-switched information interaction, the invention increases unique subdistrict identification information overall and uses the subdistrict identification information to indicate the position of current PN, accordingly, the invention can identify further by the subdistrict identification information and causes no confusion, even if the PNs are the same.
Description
Technical field
The present invention relates to field of wireless communication, (access network when switching between AN), solves the method that pilot frequency pseudo-random encoding is obscured to be specifically related to Access Network.
Background technology
Pilot Pseudo Noise Code (pilot frequency pseudo-random encoding, Pilot PN, PN in the narration of back promptly refers to Pilot PN) value 0～512, in radio network configuration, the value of two PN has a minimum interval, if this at interval value be 4, so 0～512, just can only mark 128 different PN.Base station has the sub-district more than three or three usually, and a PN will be distributed in each sub-district, and then 128 PN can distribute to 42 base stations at most.Under a large-scale wireless network, need to use the base station of PN far to surpass 42, therefore can there be the multiplexing situation of PN.
In CDMA2000 1xEV-DO system, when carrying out between AN soft handover, target AN need know that Access Terminal (accesses terminal, AT) wishes which base station (Base Station, soft handover BS) and on which sub-district at target AN.If in the interacting message that AN switches, only identify the sub-district that participates in switching by PN, what so just may occur bringing because of PN is multiplexing obscures.If in switching message, only depend on PN to come distinguishing cell, just can't distinguish for the PN that repeats.For example, come identifying cells,, just must find certain definite sub-district by PN according to some principle so in target AN side if AN has only carried PN when switching in interacting message.Such as, switch neighbor cell configuration according to AN, search the information of sub-district by PN.Owing to may there be identical PN, therefore, obscure the sub-district that may find.
Switch in the neighbor cell configuration at AN, according to current agreement, neighbor cell can only be distinguished by PN.Be subject to the constraint of current agreement, if target AN exists the PN in the whole network multiplexing, and source AN gives expression sub-district in the message of target AN PN only arranged, this brings obscuring in the processing just for target AN.The AN of different manufacturers switches and realizes, the processing of this problem is had nothing in common with each other, and the result of processing is also variant, lack a standard, handle means clearly.
Summary of the invention
The technical problem to be solved in the present invention is, provides in a kind of the switching and solves the method that pilot frequency pseudo-random encoding is obscured, and also can not obscure even pilot frequency pseudo-random encoding is identical when switching between access network.
In order to solve the problems of the technologies described above, the invention provides a kind of method that pilot frequency pseudo-random encoding is obscured that in switching, solves, between access network, switch when carrying out interacting message, if carry the pilot frequency pseudo-random encoding of Target cell in the described message, the cell identity information of also carrying described Target cell in this message then.
Further, said method also can have following characteristics, and described cell identity information is this pilot frequency pseudo-random encoding affiliated subdistrict of globally unique identifier in access network.
Further, said method also can have following characteristics, and described cell identity information is sector mark SectorID or cell ID CI.
Further, said method also can have following characteristics, defines a cell information type, comprises pilot frequency pseudo-random encoding, and channel and sector mark use this cell information type to carry cell information in the described message.
Further, said method also can have following characteristics, and the identification number of described cell information type is 02H.
Further, said method also can have following characteristics, and described access network is judged the Target cell that participates in switching according to pilot frequency pseudo-random encoding in the described message and cell identity information.
The present invention has increased overall unique cell identity information in the interacting message that AN switches, show the position of current PN by cell identity information, thereby even PN is identical, also can further distinguish by cell identity information, can not obscure.
Description of drawings
Fig. 1 is the cell information type schematic diagram that the present invention defines;
Fig. 2 is the embodiment of the invention is carried the present invention's definition in message a cell information type schematic diagram.
Embodiment
The present invention proposes in a kind of interacting message when switching between AN, if carry the Pilot PN information of Target cell in this message, then also in this message, carry the cell identity information of Target cell, this cell identity information can be in AN identifying cells uniquely, show the position of current PilotPN by cell identity information, i.e. sub-district under the Pilot PN.Access network is judged the Target cell that participates in switching according to Pilot PN in the message and cell identity information.
The present invention utilizes the sector mark SectorID of existing 128bit in the agreement as the unique cell identity information of the overall situation.According to the existing protocol regulation, the value of SectorID is unique in AN, and SectorID is placed in the cell information, just can an interior sub-district of unique identification AN.Wherein, cell identity information of the present invention is not limited to above-mentioned SectorID, also can adopt in the AN other overall unique cell ID, for example can also adopt CI (Cell Identity, cell ID) field, this field is 32bit, perhaps defines a new identification information sub-district is identified, and the present invention does not limit this.
The present invention also defines a kind of new cell information type, and as shown in Figure 1, this cell information type comprises pilot frequency pseudo-random encoding, channel and sector mark SectorID, and SectorID has taken 128bit.For this cell information type is got the identification number that an existing protocol does not have use.For example, identification number is taken as 02H, and the name of this cell information type is called pilot frequency pseudo-random encoding, channel and sector mark (Pilot PN, Channeland SectorID).Between AN, switch when carrying out interacting message, if carry cell information in the message, then use the cell information type of this redetermination to carry cell information, thereby carry pilot frequency pseudo-random encoding and sector mark, the energy distinguishing cell can not obscured because of identical generation of Pilot PN.
Further specify the present invention below by instantiation.
Between AN, during soft handover, using in the message of cell information, using the cell information type of newly-increased band SectorID.As shown in Figure 2, in A17-Allocate Request message,, use the cell information type of the present invention's definition to carry cell information at sub-district and parameter intake section (Sector and Parameter Entry), in message, carry SectorID, thereby solve the problem that PN obscures.
Between AN during direct-cut operation,, bring target AN side with the SectorID of the sub-district under the PN of target AN by A16-Session Transfer Request message.In existing A16-Session TransferRequest message, do not have the field of any expression cell information, the present invention is a newly-increased cell information field in message.Similar structure shown in Figure 2 is represented the PN that the request target side is distributed, its corresponding cell list information.In the cell list information that increases, use the cell information type of newly-increased band SectorID.
In handoff procedure in the interactive messages with on after the globally unique identifier of sub-district, PN place, even PN is identical, target AN can be further distinguishes by the globally unique identifier of the sub-district, PN place of wherein carrying, thereby can not produce PN and obscure problem, if promptly in switching message, directly have the cell ID of the PN and the overall situation, just can directly orient Target cell.
Claims (4)
1. one kind solves the method that pilot frequency pseudo-random encoding is obscured in switching, it is characterized in that, between access network, switch when carrying out interacting message, if carry the pilot frequency pseudo-random encoding of Target cell in the described message, the cell identity information of also carrying described Target cell in this message then, described cell identity information is globally unique identifier's pilot frequency pseudo-random encoding affiliated subdistrict in access network, and described access network is judged the Target cell that participates in switching according to pilot frequency pseudo-random encoding in the described message and described cell identity information.
2. the method for claim 1 is characterized in that, described cell identity information is sector mark SectorID or cell ID CI.
3. the method for claim 1 is characterized in that, defines a cell information type, comprises pilot frequency pseudo-random encoding, and channel and sector mark use this cell information type to carry cell information in the described message.
4. method as claimed in claim 3 is characterized in that, the identification number of described cell information type is 02H.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101770380A CN101404813B (en) | 2008-11-12 | 2008-11-12 | Method for solving pilot frequency pseudo-random encoding confusion in switching course |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101770380A CN101404813B (en) | 2008-11-12 | 2008-11-12 | Method for solving pilot frequency pseudo-random encoding confusion in switching course |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101404813A CN101404813A (en) | 2009-04-08 |
| CN101404813B true CN101404813B (en) | 2010-12-08 |
Family
ID=40538653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101770380A Expired - Fee Related CN101404813B (en) | 2008-11-12 | 2008-11-12 | Method for solving pilot frequency pseudo-random encoding confusion in switching course |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101404813B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102187706B (en) * | 2009-07-02 | 2013-06-12 | 华为技术有限公司 | Handover method and device |
| CN101742604B (en) * | 2009-12-10 | 2012-11-14 | 中兴通讯股份有限公司 | Method and device for identifying adjacent pseudo-random code confusion |
| US9036496B2 (en) * | 2012-01-09 | 2015-05-19 | Qualcomm Incorporated | Devices and methods for facilitating overhead message updates in wireless communications systems |
| CN102695197B (en) * | 2012-06-14 | 2016-08-03 | 华为技术有限公司 | A kind of signal conflict detection method, detection method and device |
| CN107231666B (en) * | 2017-06-22 | 2020-10-23 | 奇酷互联网络科技（深圳）有限公司 | Pilot switching method, device, communication system, mobile terminal and storage medium |
-
2008
- 2008-11-12 CN CN2008101770380A patent/CN101404813B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101404813A (en) | 2009-04-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7751838B2 (en) | Method and mobile station for synchronizing to a common synchronization channel and obtaining a channel estimate | |
| JP5062599B2 (en) | Code division multiple access cellular communication system | |
| JP4965739B2 (en) | System and method for operation of a multi-mode terminal in an overlaid network | |
| RU2420918C2 (en) | Sending pilot signals over secondary channels for improved coverage and handover in cellular communication | |
| CN101404813B (en) | Method for solving pilot frequency pseudo-random encoding confusion in switching course | |
| CN101064561B (en) | Method for realizing uplink synchronization during inter-cell switch process | |
| KR101613845B1 (en) | Apparatus and method for efficient beaconing of femto enhanced node b in wireless communication system | |
| US8264986B2 (en) | Wireless communication network, method of generating neighbor list in the wireless communication network, and control device therefor | |
| RU2015125532A (en) | COMMUNICATION DEVICE AND BASE STATION | |
| CN102150462B (en) | Methods and apparatus for frame number synchronization in wireless communication networks | |
| KR20090003183A (en) | Encoding beacon signals to provide identification in peer-to-peer communication | |
| WO2009044318A2 (en) | Closed subscriber group measurement reporting | |
| KR20090112260A (en) | Apparatus and method for updating neighbor list in mobile communication system | |
| US20100210273A1 (en) | Apparatus and method for supporting femto based station in wireless communication system | |
| EP2413631A1 (en) | Femtocell system, and method in femtocell system for achieving mobility to and from macrocells/microcells | |
| CN102215539A (en) | Apparatus and method for supporting cooperative handover in broadband wireless communication system | |
| WO2009147296A1 (en) | Cell search for flexible spectrum use | |
| CN102118355A (en) | Method for processing multicast broadcasting service information | |
| GB2444756A (en) | Address Binding in a Radio Access Network | |
| US8644877B2 (en) | Terminal apparatus, base station apparatus detection method, wireless communication system, and base station apparatus | |
| CA2510041A1 (en) | Method and apparatus for improving hard handoffs in cdma systems | |
| CN101400095B (en) | Target cell determining method, user equipment, base station and system in switching process | |
| US10880760B2 (en) | Identification of neighboring network nodes in a wireless communication network | |
| CN101170820B (en) | Apparatus and method for performing handover using compressed information in broadband wireless access communication system | |
| CN102763455B (en) | The method performing switching by region conversion in BWA |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101208 Termination date: 20181112 |