JP2008113090A5 - - Google Patents
Download PDFInfo
- Publication number
- JP2008113090A5 JP2008113090A5 JP2006293242A JP2006293242A JP2008113090A5 JP 2008113090 A5 JP2008113090 A5 JP 2008113090A5 JP 2006293242 A JP2006293242 A JP 2006293242A JP 2006293242 A JP2006293242 A JP 2006293242A JP 2008113090 A5 JP2008113090 A5 JP 2008113090A5
- Authority
- JP
- Japan
- Prior art keywords
- subchannel
- terminal
- base station
- switching
- communication system
- 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.)
- Granted
Links
- 238000005259 measurement Methods 0.000 claims 1
Claims (7)
各基地局は、各端末毎に使用可能又は使用不可能なサブチャネルが示された情報を含み各端末に割り当てられた第１のサブチャネルと、実際に使用するデータを含む第２のサブチャネルと、を含むサブチャネルの端末毎の割り当てを設定するサブチャネル割当設定手段を有し、
前記複数の端末のうちの一つの端末から前記第１のサブチャネルの切替要求を受信した場合、当該端末に割り当てられた前記第１のサブチャネルと同じスロットに前記第２のサブチャネルを集めて割り当てることを特徴とする通信システム。 In an OFDMA communication system that performs data communication between a plurality of base stations and a plurality of terminals,
Each base station includes a first subchannel allocated to each terminal including information indicating usable or unusable subchannels for each terminal, and a second subchannel including data actually used And subchannel allocation setting means for setting allocation for each terminal of subchannels including:
When the first subchannel switching request is received from one of the plurality of terminals, the second subchannel is collected in the same slot as the first subchannel allocated to the terminal. A communication system characterized by assigning.
各基地局は、各端末毎に使用可能又は使用不可能なサブチャネルが示された情報を含み各記端末に割り当てられた第１のサブチャネルと、実際に使用するデータを含む第２のサブチャネルと、を含むサブチャネルの端末毎の割り当てを設定するサブチャネル割当設定手段を有し、
前記複数の端末のうちの一つの端末から前記第１のサブチャネルの切替要求を受信した場合、少なくとも１つのスロットは基地局が使用する制御チャネルを空けることを特徴とする通信システム。 In an OFDMA communication system that performs data communication between a plurality of base stations and a plurality of terminals,
Each base station includes a first subchannel allocated to each terminal including information indicating usable or unusable subchannels for each terminal, and a second subchannel including data actually used. Subchannel allocation setting means for setting allocation for each terminal of subchannels including channels,
A communication system, wherein when a switching request for switching the first subchannel is received from one of the plurality of terminals, at least one slot frees a control channel used by a base station.
前記複数の端末のうちの一つの端末から前記第１のサブチャネルの切替要求を受信した場合、前記第１のサブチャネルと同じスロットに前記第２のサブチャネルを集めて割り当てたサブチャネルの割り当て情報を当該端末に送信することを特徴とする基地局。 A sub including a first sub-channel allocated to each terminal including information indicating available or unusable sub-channels for each terminal, and a second sub-channel including data actually used It has a subchannel assignment setting unit that sets assignment of channels for each terminal,
Allocation of subchannels when the second subchannel is collected and allocated in the same slot as the first subchannel when a switching request for the first subchannel is received from one of the plurality of terminals A base station that transmits information to the terminal.
切替先となる基地局との通信状態を測定する通信状態測定部と、前記切替先となる基地局を検索する切替先基地局検索部と、を有していることを特徴とする端末。 A terminal in the communication system according to claim 1 or 2,
A terminal comprising: a communication state measurement unit that measures a communication state with a base station that is a switching destination; and a switching destination base station search unit that searches for the base station that is the switching destination.
ダウンリンクの無線品質が劣化した場合、前記端末が切替元の基地局へ前記第１のサブチャネル切替要求を送信するステップと、
前記切替元の基地局が、前記第１のサブチャネルと同じスロットに前記第２のサブチャネルを集めて割り当て、１つのスロットに前記第１のサブチャネルと前記第２のサブチャネルがまとまった状態のサブチャネル割り当て情報を端末に送信するステップと、
前記端末が、前記サブチャネル割り当て情報を受信して、通信が行われていないすべての相対スロットにおいて、周辺基地局の検索を行うステップと、
前記端末と、検索により見つかった切替先の基地局とのリンクを確立し、前記切替元の基地局とのリンクを切断するステップと、を含むことを特徴とする基地局切替方法。 A base station switching method at the time of handover in the communication system according to claim 1 or 2,
When the downlink radio quality is degraded, the terminal transmits the first subchannel switching request to the switching source base station;
The switching source base station collects and assigns the second subchannel to the same slot as the first subchannel, and the first subchannel and the second subchannel are collected in one slot. Transmitting the subchannel allocation information to the terminal,
The terminal receives the subchannel allocation information and performs a search for neighboring base stations in all relative slots in which communication is not performed;
Establishing a link between the terminal and a switching destination base station found by the search and disconnecting the link with the switching source base station.
アップリンクの無線品質が劣化した場合、切替元の基地局がハンドオーバ指示を端末に送信するステップと、
前記ハンドオーバ指示を受信して、前記端末が前記切替元の基地局へ前記第１のサブチャネル切替要求を送信するステップと、
前記切替元の基地局が、前記第１のサブチャネルと同じスロットに前記第２のサブチャネルを集めて割り当て、１つのスロットに前記第１のサブチャネルと前記第２のサブチャネルがまとまった状態のサブチャネル割り当て情報を前記端末に送信するステップと、
前記端末が、前記サブチャネル割り当て情報を受信して、通信が行われていないすべての相対スロットにおいて、周辺基地局の検索を行うステップと、
前記端末と、検索により見つかった切替先の基地局とのリンクを確立し、前記切替元の基地局とのリンクを切断するステップと、を含むことを特徴とする基地局切替方法。 A base station switching method at the time of handover in the communication system according to claim 1 or 2,
When uplink radio quality is degraded, the switching source base station transmits a handover instruction to the terminal; and
Receiving the handover instruction, and the terminal transmitting the first subchannel switching request to the switching source base station;
The switching source base station collects and assigns the second subchannel to the same slot as the first subchannel, and the first subchannel and the second subchannel are collected in one slot. Transmitting the subchannel allocation information to the terminal;
The terminal receives the subchannel allocation information and performs a search for neighboring base stations in all relative slots in which communication is not performed;
Establishing a link between the terminal and a switching destination base station found by the search and disconnecting the link with the switching source base station.
前記端末の使用可能又は使用不可能なサブチャネルが示された情報を含み当該端末に割り当てられる第１のサブチャネルと、当該端末へのデータを含む第２のサブチャネルと、を同じスロットに含まれるサブチャネルに割り当てるサブチャネル割当手段を有することを特徴とする基地局。A first subchannel that includes information indicating usable or unusable subchannels of the terminal and is assigned to the terminal, and a second subchannel that includes data for the terminal are included in the same slot. A base station comprising subchannel allocating means for allocating to a subchannel.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006293242A JP4926647B2 (en) | 2006-10-27 | 2006-10-27 | Communication system, base station and terminal used in the communication system, and base station switching method |
| PCT/JP2007/070856 WO2008053788A1 (en) | 2006-10-27 | 2007-10-25 | Communication system and base stations, terminals and base station switching method used in that communication system |
| US12/447,425 US8493930B2 (en) | 2006-10-27 | 2007-10-25 | Communication system, base station and mobile station used in the communication system, and base station switching method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006293242A JP4926647B2 (en) | 2006-10-27 | 2006-10-27 | Communication system, base station and terminal used in the communication system, and base station switching method |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2008113090A JP2008113090A (en) | 2008-05-15 |
| JP2008113090A5 true JP2008113090A5 (en) | 2010-10-28 |
| JP4926647B2 JP4926647B2 (en) | 2012-05-09 |
Family
ID=39445391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2006293242A Expired - Fee Related JP4926647B2 (en) | 2006-10-27 | 2006-10-27 | Communication system, base station and terminal used in the communication system, and base station switching method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4926647B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8199633B2 (en) | 2008-05-27 | 2012-06-12 | Kyocera Corporation | Base station and wireless communication method |
| JP4654267B2 (en) * | 2008-05-27 | 2011-03-16 | 京セラ株式会社 | Base station and radio communication method |
| US8676208B2 (en) * | 2008-06-11 | 2014-03-18 | Mediatek Inc. | Scanning and handover operation in multi-carrier wireless communications systems |
| JP5384297B2 (en) * | 2009-11-04 | 2014-01-08 | 京セラ株式会社 | Mobile communication system, mobile station, base station, and handover method |
| JP5420373B2 (en) * | 2009-11-04 | 2014-02-19 | 京セラ株式会社 | Mobile communication system, mobile station, base station, and handover method |
| JP2011109679A (en) * | 2010-12-15 | 2011-06-02 | Kyocera Corp | Base station and wireless communication method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3403950B2 (en) * | 1998-09-07 | 2003-05-06 | 松下電器産業株式会社 | Mobile station apparatus, broadcast channel receiving method in mobile station apparatus, and cell search method in mobile station apparatus |
| US7573851B2 (en) * | 2004-12-07 | 2009-08-11 | Adaptix, Inc. | Method and system for switching antenna and channel assignments in broadband wireless networks |
| US9184870B2 (en) * | 2005-04-01 | 2015-11-10 | Qualcomm Incorporated | Systems and methods for control channel signaling |
-
2006
- 2006-10-27 JP JP2006293242A patent/JP4926647B2/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102402543B1 (en) | Apparatus and method for determining d2d data resource for d2d communication | |
| KR100959332B1 (en) | Apparatus and method for interference cancellation in broadband wireless communication system | |
| JP4440301B2 (en) | System and method for band adaptive modulation and coding subchannel operation in an orthogonal frequency division multiple access communication system | |
| CN105637963B (en) | Method and apparatus for transmit signal power control and discovery signal resource multiplexing in a wireless communication system | |
| JP2019510390A (en) | Radio resource allocation in narrowband communication systems | |
| RU2006147238A (en) | INTRACERAL GENERAL RE-USE FOR A WIRELESS COMMUNICATION SYSTEM | |
| KR20130065002A (en) | Method for controlling of device-to-device communication | |
| JP2007060642A (en) | Resource allocation in cellular communications system | |
| KR101205799B1 (en) | Mobile communication system, mobile station, base station, and control channel allocation method | |
| CN111181710B (en) | Communication method and device | |
| JP2008113090A5 (en) | ||
| EP3860279A1 (en) | Communication device, control device, and communication system | |
| JP2015529426A5 (en) | ||
| US10820309B2 (en) | Communications in a wireless system | |
| JP2016163355A (en) | Base station, mobile station, and downlink scheduling method | |
| KR20130088572A (en) | Method and apparatus method for recource allocation of enb and sever for inter-cell coordination using up-link signaling channel | |
| JP4651463B2 (en) | Base station and method used in base station | |
| CN100359982C (en) | Shared channel allocation and using method in multi-carrier frequency cell system | |
| US9374820B2 (en) | Dynamic temporary block flow scheduling | |
| CN106954263B (en) | Method and apparatus for configuring multi-band communication in narrowband internet of things | |
| US8514784B2 (en) | Method for processing downlink signal in sector portion and base station thereof | |
| KR101735099B1 (en) | Method and apparatus for managing resources in ofdma cellular system | |
| JP5091020B2 (en) | Wireless communication system, base station, management server, and wireless communication method | |
| JP2007129752A (en) | Wireless communication system | |
| WO2009157257A1 (en) | Radio communication system, base station, channel allocation method, program |