GB2415324B - A method of controlling uplink power level - Google Patents
A method of controlling uplink power levelInfo
- Publication number
- GB2415324B GB2415324B GB0413421A GB0413421A GB2415324B GB 2415324 B GB2415324 B GB 2415324B GB 0413421 A GB0413421 A GB 0413421A GB 0413421 A GB0413421 A GB 0413421A GB 2415324 B GB2415324 B GB 2415324B
- Authority
- GB
- United Kingdom
- Prior art keywords
- cell
- control
- power level
- hsdpa
- dpch
- 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
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
- H04W52/40—TPC being performed in particular situations during macro-diversity or soft handoff
-
- 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
- H04W52/06—TPC algorithms
- H04W52/16—Deriving transmission power values from another channel
-
- 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
- H04W52/18—TPC being performed according to specific parameters
- H04W52/28—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission
- H04W52/286—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission during data packet transmission, e.g. high speed packet access [HSPA]
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
In soft handover, a mobile user entity 1 is in simultaneous communication with a number of cell base stations 2-4, e.g. via an uplink-dedicated physical channel 9, for normal use. Uplink power level is usually set by reducing power if any active cell requests power down. This is communicated by Transmit Power Control (TCP) signals on a downlink DPCH 5-7 from each cell. If the UE is also using high speed down link packet access (HSDPA), it will be communicating to only the serving cell C 2, e.g. via HS-DPCCH 8 and HS-DSCH 10. In the handover condition, cell A or cell B could be a better link than cell C and could be requesting power down. In the prior art this would also reduce the HSDPA uplink power level, resulting in the likelihood of acknowledgements of correctly received packets not being received by the cell C, leading to unnecessary resending of packets. The invention solves this problem by dividing the control, such that the control signals for the normal traffic sent from all the cells via DLPCH 5-7 control only the corresponding uplink power level on UL-DPCH 9 and separate control of the HSDPA on HSDCCCH is carried out according to signals received from cell C on DL-DPCH.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0413421A GB2415324B (en) | 2004-06-16 | 2004-06-16 | A method of controlling uplink power level |
PCT/GB2005/002200 WO2005125040A2 (en) | 2004-06-16 | 2005-06-07 | A method of controlling uplink power level |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0413421A GB2415324B (en) | 2004-06-16 | 2004-06-16 | A method of controlling uplink power level |
Publications (3)
Publication Number | Publication Date |
---|---|
GB0413421D0 GB0413421D0 (en) | 2004-07-21 |
GB2415324A GB2415324A (en) | 2005-12-21 |
GB2415324B true GB2415324B (en) | 2006-06-28 |
Family
ID=32749980
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0413421A Expired - Fee Related GB2415324B (en) | 2004-06-16 | 2004-06-16 | A method of controlling uplink power level |
Country Status (2)
Country | Link |
---|---|
GB (1) | GB2415324B (en) |
WO (1) | WO2005125040A2 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2433383B (en) * | 2005-12-19 | 2008-03-12 | Motorola Inc | Transmit power control in a cellular communication system |
US7986959B2 (en) | 2007-02-14 | 2011-07-26 | Qualcomm Incorporated | Preamble based uplink power control for LTE |
EP2218191A4 (en) * | 2007-12-06 | 2015-05-13 | Ericsson Telefon Ab L M | Method and arrangement for power control during soft handover |
CN101978735B (en) * | 2008-03-21 | 2015-08-19 | 交互数字专利控股公司 | The method and apparatus of feedback signaling |
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 |
EP2749094B1 (en) * | 2011-10-04 | 2018-06-06 | Telefonaktiebolaget LM Ericsson (publ) | Controlling uplink transmit power responsive to combination of received power control commands during soft handover in a communicaton system |
US9319997B2 (en) * | 2012-09-18 | 2016-04-19 | Qualcomm Incorporated | Apparatus, method, and system for uplink power control in a heterogeneous wireless communication network |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030039217A1 (en) * | 2001-08-25 | 2003-02-27 | Samsung Electronics Co., Ltd. | Apparatus and method for transmitting/receiving uplink transmission power offset and HS-DSCH power level in a communication system employing HSDPA |
GB2383503A (en) * | 2001-01-13 | 2003-06-25 | Samsung Electronics Co Ltd | Method of controlling power upon cell hand-over |
WO2004019513A1 (en) * | 2002-08-08 | 2004-03-04 | Motorola Inc | A communication unit and a method of generating a control signal therefor |
EP1460776A2 (en) * | 2003-03-19 | 2004-09-22 | Nec Corporation | Controller and control method for mobile communication system |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
-
2004
- 2004-06-16 GB GB0413421A patent/GB2415324B/en not_active Expired - Fee Related
-
2005
- 2005-06-07 WO PCT/GB2005/002200 patent/WO2005125040A2/en active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2383503A (en) * | 2001-01-13 | 2003-06-25 | Samsung Electronics Co Ltd | Method of controlling power upon cell hand-over |
US20030039217A1 (en) * | 2001-08-25 | 2003-02-27 | Samsung Electronics Co., Ltd. | Apparatus and method for transmitting/receiving uplink transmission power offset and HS-DSCH power level in a communication system employing HSDPA |
WO2004019513A1 (en) * | 2002-08-08 | 2004-03-04 | Motorola Inc | A communication unit and a method of generating a control signal therefor |
EP1460776A2 (en) * | 2003-03-19 | 2004-09-22 | Nec Corporation | Controller and control method for mobile communication system |
Also Published As
Publication number | Publication date |
---|---|
WO2005125040A2 (en) | 2005-12-29 |
GB0413421D0 (en) | 2004-07-21 |
GB2415324A (en) | 2005-12-21 |
WO2005125040A3 (en) | 2006-04-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20080616 |
|
732E | Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977) |
Free format text: REGISTERED BETWEEN 20090205 AND 20090211 |