CA2317142A1 - Method and system for controlling forward transmit power in a wireless system - Google Patents
Method and system for controlling forward transmit power in a wireless system Download PDFInfo
- Publication number
- CA2317142A1 CA2317142A1 CA002317142A CA2317142A CA2317142A1 CA 2317142 A1 CA2317142 A1 CA 2317142A1 CA 002317142 A CA002317142 A CA 002317142A CA 2317142 A CA2317142 A CA 2317142A CA 2317142 A1 CA2317142 A1 CA 2317142A1
- Authority
- CA
- Canada
- Prior art keywords
- channels
- power control
- soft hand
- transmit power
- base stations
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/38—TPC being performed in particular situations
- H04W52/50—TPC being performed in particular situations at the moment of starting communication in a multiple access environment
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/14—Separate analysis of uplink or downlink
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/12—Outer and inner loops
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/14—Separate analysis of uplink or downlink
- H04W52/146—Uplink power control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/38—TPC being performed in particular situations
- H04W52/40—TPC being performed in particular situations during macro-diversity or soft handoff
Abstract
A method and system for controlling downlink transmit power during a soft hand-off in a spread-spectrum wireless system supports independent power control of multiple forward channels to reduce fading. For a soft hand-off, a mobile switching center determines if a forward control channel is transmitted from different sectors of base stations than a forward data channel is. The base stations preferably adjust transmit powers of the forward channels grouped into different physical channels by receiving power control data over the allocated reverse power control channels to compensate for fading of the forward channels during a soft hand-off.</SDOAB >
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/389,080 US6496531B1 (en) | 1999-09-02 | 1999-09-02 | Method and system for controlling forward transmit power in a wireless system |
US09/389,080 | 1999-09-02 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2317142A1 true CA2317142A1 (en) | 2001-03-02 |
CA2317142C CA2317142C (en) | 2004-04-13 |
Family
ID=23536724
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002317142A Expired - Fee Related CA2317142C (en) | 1999-09-02 | 2000-08-30 | Method and system for controlling forward transmit power in a wireless system |
Country Status (6)
Country | Link |
---|---|
US (1) | US6496531B1 (en) |
EP (1) | EP1081876B1 (en) |
JP (1) | JP3964112B2 (en) |
KR (1) | KR100722067B1 (en) |
CA (1) | CA2317142C (en) |
DE (1) | DE60045885D1 (en) |
Families Citing this family (42)
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GB9921007D0 (en) * | 1999-09-06 | 1999-11-10 | Nokia Telecommunications Oy | Quality measurement |
US6526034B1 (en) | 1999-09-21 | 2003-02-25 | Tantivy Communications, Inc. | Dual mode subscriber unit for short range, high rate and long range, lower rate data communications |
CN1241334C (en) * | 1999-09-30 | 2006-02-08 | 艾利森电话股份有限公司 | Transmit power control |
US8463255B2 (en) | 1999-12-20 | 2013-06-11 | Ipr Licensing, Inc. | Method and apparatus for a spectrally compliant cellular communication system |
KR100735406B1 (en) * | 2000-06-23 | 2007-07-04 | 삼성전자주식회사 | Apparatus and method for processing forward link data of handoff mobile station in cdma communication system |
US7260415B1 (en) * | 2001-05-31 | 2007-08-21 | Sprint Spectrum L.P. | Method and system for location-based power control in wireless communications |
US7574230B1 (en) * | 2001-05-31 | 2009-08-11 | Sprint Spectrum L.P. | Remote base station with transmit power control |
US6970724B2 (en) * | 2001-08-10 | 2005-11-29 | Hewlett-Packard Development Company, L.P. | Apparatus and method for automatically disabling cell phone ringing |
KR100474689B1 (en) | 2001-08-30 | 2005-03-08 | 삼성전자주식회사 | Method for power control during soft handoff in mobile communication system |
KR20030077733A (en) * | 2002-03-26 | 2003-10-04 | 삼성전자주식회사 | Apparatus for determining report pattern of channel quality in communication system using high speed data packet access scheme and method thereof |
CN1192530C (en) * | 2002-04-08 | 2005-03-09 | 华为技术有限公司 | Method for controlling upline control channel power in soft switching of high speed data packet insertion system |
US7299041B2 (en) * | 2002-09-30 | 2007-11-20 | Sony Ericsson Mobile Communications Ab | Method and device of selecting a communication system |
ATE332616T1 (en) * | 2002-10-15 | 2006-07-15 | Lucent Technologies Inc | METHOD FOR SELECTING BASE STATION CELLS FOR A SOFT HANDOVER CONNECTION, AND A NETWORK FOR MOBILE TRANSMISSION SYSTEMS |
US7477618B2 (en) * | 2002-10-25 | 2009-01-13 | Qualcomm Incorporated | Method and apparatus for stealing power or code for data channel operations |
KR100953632B1 (en) * | 2002-12-31 | 2010-04-20 | 엘지전자 주식회사 | Method for controlling transmission power of physical channel |
US7450556B2 (en) * | 2003-07-10 | 2008-11-11 | Via Telecom Co., Ltd. | Method and apparatus estimating cell interference and noise for CDMA packet data channels |
WO2005025262A1 (en) * | 2003-09-04 | 2005-03-17 | Fujitsu Limited | Communication system and handover communication method |
KR101122826B1 (en) * | 2003-12-22 | 2012-03-22 | 텔레폰악티에볼라겟엘엠에릭슨(펍) | Method and system of radio communications of traffic with different characteristic |
US7583975B2 (en) * | 2004-03-08 | 2009-09-01 | Intel Corporation | Adaptive transmit power control in wireless devices |
US20070274343A1 (en) * | 2004-03-30 | 2007-11-29 | Akihiko Nishio | Base Station Device, Mobile Station Device, And Data Channel Allocation Method |
US7636322B1 (en) | 2005-03-07 | 2009-12-22 | Sprint Spectrum L.P. | Method and system for management of RF access probes based on RF conditions |
US20070066232A1 (en) * | 2005-09-22 | 2007-03-22 | Black Peter J | Pilot grouping and route protocols in multi-carrier communication systems |
US8150408B2 (en) * | 2005-03-08 | 2012-04-03 | Qualcomm Incorporated | Pilot grouping and set management in multi-carrier communication systems |
US8369271B2 (en) * | 2005-04-22 | 2013-02-05 | Alcatel Lucent | Method of configuring a cell of a wireless communication system for improved resource utilization |
US8712422B1 (en) | 2005-05-18 | 2014-04-29 | Sprint Spectrum L.P. | Dynamic allocation of access channels based on access channel occupancy in a cellular wireless communication system |
KR100975715B1 (en) | 2005-06-27 | 2010-08-12 | 삼성전자주식회사 | Method for determinning handoff in a mobile communication system |
US20070008944A1 (en) * | 2005-07-06 | 2007-01-11 | Qian Zhang | Method and system for spreading and scrambling downlike physical channels |
US20070008923A1 (en) * | 2005-07-08 | 2007-01-11 | Tandon Tarun K | Method and system for allocating transmit power among a plurality of channels in a wireless communication system |
CN101352056B (en) * | 2006-03-03 | 2012-08-08 | 中兴通讯股份有限公司 | Method for distributing carrier frequency of cluster system |
US7414529B2 (en) * | 2006-08-04 | 2008-08-19 | International Business Machines Corporation | Disablement of camera functionality for a portable device |
JP4797888B2 (en) * | 2006-08-31 | 2011-10-19 | 株式会社日立製作所 | Wireless communication system, control node, and base station for communication using a plurality of wireless resources |
US9516580B2 (en) * | 2007-03-19 | 2016-12-06 | Texas Instruments Incorporated | Enabling down link reception of system and control information from intra-frequency neighbors without gaps in the serving cell in evolved-UTRA systems |
WO2009022948A1 (en) * | 2007-08-10 | 2009-02-19 | Telefonaktiebolaget Lm Ericsson (Publ) | Improvements in, or relating to, e-utran and handover |
US8493919B2 (en) * | 2007-09-21 | 2013-07-23 | Qualcomm Incorporated | Interference mitigation in a wireless communication system |
US8140107B1 (en) | 2008-01-04 | 2012-03-20 | Sprint Spectrum L.P. | Method and system for selective power control of wireless coverage areas |
EP2472742B1 (en) | 2009-08-24 | 2020-05-27 | Samsung Electronics Co., Ltd. | Method and device for sending and receiving a broadcast control channel in a mobile communication system |
US8509699B1 (en) | 2009-09-22 | 2013-08-13 | Sprint Spectrum L.P. | Method and system for adjusting access parameters in response to surges in paging buffer occupancy |
KR20120140000A (en) * | 2011-06-20 | 2012-12-28 | 삼성전자주식회사 | Method and apparatus for synchronization acquisition for direct communication between devices |
US8989041B2 (en) | 2012-05-14 | 2015-03-24 | Qualcomm Incorporated | Apparatus and method for controlling an access probe transmit power according to a reverse link underload condition |
US9438283B2 (en) * | 2014-05-23 | 2016-09-06 | Intel Corporation | Baseband time domain cancellation of data bus interference |
US9942412B1 (en) | 2014-09-08 | 2018-04-10 | Sprint Spectrum L.P. | Use of contention-free random-access preamble in paging process |
EP3001739B1 (en) * | 2014-09-25 | 2019-04-10 | Motorola Solutions, Inc. | Method and apparatus for adaptation of the base station transmit power in order to reduce power consumption |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3352593B2 (en) * | 1996-05-22 | 2002-12-03 | 株式会社エヌ・ティ・ティ・ドコモ | Mobile communication system and transmission power control method during soft handover in mobile communication system |
US6236365B1 (en) * | 1996-09-09 | 2001-05-22 | Tracbeam, Llc | Location of a mobile station using a plurality of commercial wireless infrastructures |
US6122334A (en) * | 1997-06-10 | 2000-09-19 | Hughes; Robbin D. | Pilot signal detection filter for a wireless communication device |
KR100276698B1 (en) * | 1997-11-17 | 2001-02-01 | 정선종 | Forward link power control apparatus and method with interference reduction during soft handoff in CDMA communication systems |
US6154659A (en) * | 1997-12-24 | 2000-11-28 | Nortel Networks Limited | Fast forward link power control in a code division multiple access system |
US6539226B1 (en) * | 1998-02-16 | 2003-03-25 | Nec Corporation | Base station transmission power control system mobile station and base station |
WO1999043180A1 (en) * | 1998-02-19 | 1999-08-26 | Qualcomm Incorporated | A method and apparatus for maximizing standby time using a quick paging channel |
US6144861A (en) * | 1998-04-07 | 2000-11-07 | Telefonaktiebolaget Lm Ericsson | Downlink power control in a cellular mobile radio communications system |
US6216004B1 (en) * | 1998-06-23 | 2001-04-10 | Qualcomm Incorporated | Cellular communication system with common channel soft handoff and associated method |
US6353602B1 (en) * | 1998-08-07 | 2002-03-05 | Lucent Technologies Inc. | CDMA base station assisted soft handoff |
JP3204310B2 (en) * | 1998-08-12 | 2001-09-04 | 日本電気株式会社 | CDMA mobile communication system and downlink transmission power control method thereof |
US6351460B1 (en) * | 1999-05-24 | 2002-02-26 | Qualcomm Incorporated | Method and apparatus for a dedicated control channel in an early soft handoff in a code division multiple access communication system |
-
1999
- 1999-09-02 US US09/389,080 patent/US6496531B1/en not_active Expired - Lifetime
-
2000
- 2000-08-29 EP EP00307380A patent/EP1081876B1/en not_active Expired - Lifetime
- 2000-08-29 DE DE60045885T patent/DE60045885D1/en not_active Expired - Lifetime
- 2000-08-30 CA CA002317142A patent/CA2317142C/en not_active Expired - Fee Related
- 2000-09-01 JP JP2000264842A patent/JP3964112B2/en not_active Expired - Fee Related
- 2000-09-01 KR KR1020000051462A patent/KR100722067B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR100722067B1 (en) | 2007-05-25 |
EP1081876A3 (en) | 2006-05-24 |
JP2001128219A (en) | 2001-05-11 |
DE60045885D1 (en) | 2011-06-09 |
US6496531B1 (en) | 2002-12-17 |
JP3964112B2 (en) | 2007-08-22 |
KR20010050301A (en) | 2001-06-15 |
EP1081876A2 (en) | 2001-03-07 |
CA2317142C (en) | 2004-04-13 |
EP1081876B1 (en) | 2011-04-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |