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GB2415324B - A method of controlling uplink power level - Google Patents

A method of controlling uplink power level

Info

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
Application number
GB0413421A
Other versions
GB2415324A (en
GB0413421D0 (en
Inventor
Volker Breuer
Thomas Malcolm Chapman
Burghard Unteregger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens AG, Siemens Corp filed Critical Siemens AG
Priority to GB0413421A priority Critical patent/GB2415324B/en
Publication of GB0413421D0 publication Critical patent/GB0413421D0/en
Priority to PCT/GB2005/002200 priority patent/WO2005125040A2/en
Publication of GB2415324A publication Critical patent/GB2415324A/en
Application granted granted Critical
Publication of GB2415324B publication Critical patent/GB2415324B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [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. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [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. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [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. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [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.
GB0413421A 2004-06-16 2004-06-16 A method of controlling uplink power level Expired - Fee Related GB2415324B (en)

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)

* Cited by examiner, † Cited by third party
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
WO2009072945A1 (en) * 2007-12-06 2009-06-11 Telefonaktiebolaget Lm Ericsson (Publ) Method and arrangement for power control during soft handover
CN105007604A (en) * 2008-03-21 2015-10-28 交互数字专利控股公司 Wireless transmitting/receiving unit and method for sending/triggering feedback
KR101549572B1 (en) * 2008-11-25 2015-09-02 삼성전자주식회사 METHOD AND APPARATUS FOR ADJUSTING TRANSMISSION POWER OF PHYSICAL CONTROL CHANNEL FOR TRANSMISSION OF CHANNEL QUALITY RECOGNITION IN MOBILE COMM
IN2014KN00950A (en) * 2011-10-04 2015-10-09 Ericsson Telefon Ab L M
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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
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
GB2415324A (en) 2005-12-21
GB0413421D0 (en) 2004-07-21
WO2005125040A2 (en) 2005-12-29
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