UA94204C2 - Pilot-signal for use in multi-sector cells - Google Patents
Pilot-signal for use in multi-sector cellsInfo
- Publication number
- UA94204C2 UA94204C2 UAA201010406A UAA201010406A UA94204C2 UA 94204 C2 UA94204 C2 UA 94204C2 UA A201010406 A UAA201010406 A UA A201010406A UA A201010406 A UAA201010406 A UA A201010406A UA 94204 C2 UA94204 C2 UA 94204C2
- Authority
- UA
- Ukraine
- Prior art keywords
- pilot
- transmitted
- sector
- null
- cell
- Prior art date
Links
Classifications
-
- Y02B60/50—
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
Pilot signal transmission sequences and methods are described for use in a multi-sector cell. Pilots in different sectors i are transmitted at different known power levels. In adjacent sectors a pilot is transmitted while no pilot is transmitted in the adjoining sector. This represents transmission of a NULL pilot signal. A cell NULL is also supported in which NULL pilots are transmitted in each sector of a cell at the same time. Multiple pilot signal measurements are made. At least two channel quality indicator values are generated from measurements corresponding to at least two pilot signals of different power levels. The two values are transmitted back to the base station which uses both values to determine the transmit power required to achieve a desired SNR at the wireless terminal. The wireless terminal also reports information indicating its location to a sector boundary.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US44972903P | 2003-02-24 | 2003-02-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
UA94204C2 true UA94204C2 (en) | 2011-04-11 |
Family
ID=36766710
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
UAA200508984A UA94018C2 (en) | 2003-02-24 | 2004-02-20 | Pilot-signal for use in multi-sector cell |
UAA201010406A UA94204C2 (en) | 2003-02-24 | 2004-02-20 | Pilot-signal for use in multi-sector cells |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
UAA200508984A UA94018C2 (en) | 2003-02-24 | 2004-02-20 | Pilot-signal for use in multi-sector cell |
Country Status (2)
Country | Link |
---|---|
CN (2) | CN1778058B (en) |
UA (2) | UA94018C2 (en) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4998680B2 (en) * | 2006-06-19 | 2012-08-15 | 日本電気株式会社 | Pilot resource allocation method, channel quality measurement method and base station in mobile communication system |
KR20120053061A (en) * | 2006-10-24 | 2012-05-24 | 콸콤 인코포레이티드 | Enabling resource partitioning for wireless communication systems |
CN101174851B (en) * | 2006-11-03 | 2012-11-21 | 华为技术有限公司 | Method and device for detecting and identifying interference due to adjacent station |
KR101401965B1 (en) | 2007-05-25 | 2014-06-02 | 삼성전자주식회사 | Method for measuring a state of a plurality of channels and apparatus, Method for selecting idle channel and apparatus therefor |
US8150326B2 (en) * | 2007-12-28 | 2012-04-03 | Nec Corporation | Signal processing for multi-sectored wireless communications system and method thereof |
US8559879B2 (en) * | 2008-04-22 | 2013-10-15 | Qualcomm Incorporated | Null pilots for interference estimation in a wireless communication network |
US8521206B2 (en) | 2008-04-22 | 2013-08-27 | Qualcomm Incorporated | Interference management with reduce interference requests and interference indicators |
JP5198145B2 (en) * | 2008-05-19 | 2013-05-15 | 株式会社エヌ・ティ・ティ・ドコモ | Base station apparatus, terminal apparatus and method |
US8417252B2 (en) * | 2008-10-24 | 2013-04-09 | Qualcomm Incorporated | Method and apparatus for interference reporting in a N-MIMO communication system |
KR101549572B1 (en) * | 2008-11-25 | 2015-09-02 | 삼성전자주식회사 | Method and apparatus for transmission power control of physical control channel for cqi in mobile telecommunication system supporting multi-cell hsdpa |
US8817769B2 (en) | 2009-01-26 | 2014-08-26 | Qualcomm Incorporated | Power decision pilot for wireless communication |
CN101841386B (en) * | 2009-03-20 | 2014-11-05 | 中兴通讯股份有限公司 | Method and system for feeding back channel quality indications |
CN102215182B (en) * | 2010-04-02 | 2015-01-21 | 电信科学技术研究院 | Pilot and data transmission and reception processing method and equipment |
CN105406950A (en) * | 2014-08-07 | 2016-03-16 | 索尼公司 | Device and method for wireless communication, electronic equipment, and method for electronic equipment |
US10028284B2 (en) * | 2014-08-14 | 2018-07-17 | Qualcomm Incorporated | Systems and methods for improved communication efficiency in wireless networks |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6011787A (en) * | 1996-03-21 | 2000-01-04 | Ntt Mobile Communications Network Inc. | CDMA mobile communication scheme with effective use of sector configuration |
US6035000A (en) * | 1996-04-19 | 2000-03-07 | Amati Communications Corporation | Mitigating radio frequency interference in multi-carrier transmission systems |
US5771461A (en) * | 1996-06-28 | 1998-06-23 | Motorola, Inc. | Method and apparatus for power control of a first channel based on a signal quality of a second channel |
US5933421A (en) * | 1997-02-06 | 1999-08-03 | At&T Wireless Services Inc. | Method for frequency division duplex communications |
US5867478A (en) * | 1997-06-20 | 1999-02-02 | Motorola, Inc. | Synchronous coherent orthogonal frequency division multiplexing system, method, software and device |
SE9702408L (en) * | 1997-06-24 | 1998-12-25 | Ericsson Telefon Ab L M | Sectorization of a cellular CDMA system |
EP2262157A3 (en) * | 2000-07-05 | 2011-03-23 | Sony Deutschland Gmbh | Pilot pattern design for a STTD scheme in an OFDM system |
-
2004
- 2004-02-20 UA UAA200508984A patent/UA94018C2/en unknown
- 2004-02-20 CN CN2004800108612A patent/CN1778058B/en not_active Expired - Lifetime
- 2004-02-20 CN CN2004800108398A patent/CN1871862B/en not_active Expired - Lifetime
- 2004-02-20 UA UAA201010406A patent/UA94204C2/en unknown
Also Published As
Publication number | Publication date |
---|---|
CN1778058B (en) | 2010-11-10 |
CN1871862A (en) | 2006-11-29 |
UA94018C2 (en) | 2011-04-11 |
CN1778058A (en) | 2006-05-24 |
CN1871862B (en) | 2012-03-21 |
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