WO2004100565A3 - Fast random access method for eudch of wcdma - Google Patents

Fast random access method for eudch of wcdma Download PDF

Info

Publication number
WO2004100565A3
WO2004100565A3 PCT/KR2004/001097 KR2004001097W WO2004100565A3 WO 2004100565 A3 WO2004100565 A3 WO 2004100565A3 KR 2004001097 W KR2004001097 W KR 2004001097W WO 2004100565 A3 WO2004100565 A3 WO 2004100565A3
Authority
WO
WIPO (PCT)
Prior art keywords
random access
power
eudch
preamble
initial
Prior art date
Application number
PCT/KR2004/001097
Other languages
French (fr)
Other versions
WO2004100565A2 (en
Inventor
Ju-Ho Lee
Gaoke Du
Xiaoqiang Li
Guixia Yan
Yujian Zhang
Original Assignee
Samsung Electronics Co Ltd
Beijing Samsung Telecom R&D Ct
Ju-Ho Lee
Gaoke Du
Xiaoqiang Li
Guixia Yan
Yujian Zhang
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 Samsung Electronics Co Ltd, Beijing Samsung Telecom R&D Ct, Ju-Ho Lee, Gaoke Du, Xiaoqiang Li, Guixia Yan, Yujian Zhang filed Critical Samsung Electronics Co Ltd
Publication of WO2004100565A2 publication Critical patent/WO2004100565A2/en
Publication of WO2004100565A3 publication Critical patent/WO2004100565A3/en

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
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
    • H04W52/362—Aspects of the step size
    • 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
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
    • H04W52/367—Power values between minimum and maximum limits, e.g. dynamic range
    • 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

Abstract

A fast random access method for the enhanced uplink dedicated channel of WCDMA system including: Network periodically set 'EUDCH power offset' and 'EUDCH power ramp step' and broadcast them to a UE via the system information block or transmit them via dedicated channel; and the UE calculates Preamble_Initial_power and preamble transmission power based on the received 'EUDCH power offset' and 'EUDCH power ramp step', respectively. By specially setting the transmission power offset for initial preamble and larger power ramp step, the initial transmission power of random access procedure is increased, and the probability of random access success is increased. Time needed for power probing is reduced, and the time needed for the random access is reduced. Values of the information elements newly added are set by the network according to the current uplink interference and the estimated possible number of the users for the fast random access.
PCT/KR2004/001097 2003-05-12 2004-05-12 Fast random access method for eudch of wcdma WO2004100565A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN03125091.2 2003-05-12
CNA031250912A CN1549475A (en) 2003-05-12 2003-05-12 Fast random switching in method used for upward special channel enhancement of WCDMA system

Publications (2)

Publication Number Publication Date
WO2004100565A2 WO2004100565A2 (en) 2004-11-18
WO2004100565A3 true WO2004100565A3 (en) 2005-02-17

Family

ID=33426299

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2004/001097 WO2004100565A2 (en) 2003-05-12 2004-05-12 Fast random access method for eudch of wcdma

Country Status (2)

Country Link
CN (1) CN1549475A (en)
WO (1) WO2004100565A2 (en)

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GB0522347D0 (en) * 2005-10-27 2005-12-07 Siemens Ag Signalling information transfer for mobile telephones
US7783317B2 (en) 2005-11-04 2010-08-24 M-Stack Limited Method and apparatus for calculating an initial transmission power in universal mobile telecommunications system user equipment
ES2292080T3 (en) * 2005-11-04 2008-03-01 M-Stack Limited METHOD AND APPLIANCE TO CALCULATE A POWER OF INITIAL TRANSMISSION IN A USER EQUIPMENT OF TELECOMMUNICATION SYSTEM OF UNIVERSAL MOBILES.
US20070149132A1 (en) 2005-12-22 2007-06-28 Junyl Li Methods and apparatus related to selecting control channel reporting formats
EP1981303A4 (en) * 2006-02-06 2012-10-10 Panasonic Corp Base station and communication system
CN101137198B (en) * 2006-08-31 2011-10-26 华为技术有限公司 Random access probe transmitting method and apparatus
ES2691027T3 (en) * 2006-09-29 2018-11-23 Nokia Technologies Oy Device, method and software product that provides use of E-DCH as a shared RACH channel
KR100915005B1 (en) * 2007-02-01 2009-09-02 한국전자통신연구원 Method for transmitting Broadcasting signal and random access preamble
AU2008301677C1 (en) * 2007-09-18 2012-03-15 Sharp Kabushiki Kaisha Radio communication system, base station device, mobile station device, and random access method
EP2218288B1 (en) 2007-11-01 2011-05-18 Koninklijke Philips Electronics N.V. Improved power ramping for rach
CN101448325B (en) * 2007-11-27 2012-11-21 电信科学技术研究院 Processing method and base station for random access process
US8718694B2 (en) * 2007-12-07 2014-05-06 Interdigital Patent Holdings, Inc. Method and apparatus of signaling and procedure to support uplink power level determination
CN101478827B (en) * 2008-01-04 2011-09-14 华为技术有限公司 Method, system and apparatus for retransmitting preamble signature
US8289866B2 (en) * 2008-03-31 2012-10-16 Qualcomm Incorporated Flexible power offset assignments for acquisition indicator channels
CN101282516B (en) * 2008-04-10 2011-04-20 中兴通讯股份有限公司 Method for processing updating message of base station transmission system information
RU2586884C2 (en) * 2010-02-12 2016-06-10 Мицубиси Электрик Корпорейшн Mobile communication system
CN102438305B (en) * 2010-09-29 2014-12-10 中兴通讯股份有限公司 Power control method and terminal
CN102438306A (en) * 2010-09-29 2012-05-02 中兴通讯股份有限公司 Power control method, network side equipment and terminal
CN102448158B (en) * 2010-10-11 2014-12-31 工业和信息化部电信传输研究所 Mobile terminal random access method of TD-SCDMA system
US8520622B2 (en) 2011-07-06 2013-08-27 Telefonaktiebolaget L M Ericsson (Publ) Controlling uplink and downlink transmission power during asynchronous switching of control states by user equipment
EP3451748B1 (en) 2013-08-13 2021-04-14 Huawei Technologies Co., Ltd. Method for sending preamble sequence and user equipment
CN110581753B (en) * 2018-06-08 2022-05-03 中国电信股份有限公司 Uplink interference avoidance transmission method and system, base station and user terminal

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5347515A (en) * 1992-03-27 1994-09-13 Pittway Corporation Method and apparatus for global polling having contention-based address identification
US20020052204A1 (en) * 1998-09-22 2002-05-02 Bender Paul E. Method and apparatus for rapid assignment of a traffic channel in digital cellular communication systems
US6785550B1 (en) * 2000-11-28 2004-08-31 Lucent Technologies Inc. Mobile location estimation in a wireless communication system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5347515A (en) * 1992-03-27 1994-09-13 Pittway Corporation Method and apparatus for global polling having contention-based address identification
US20020052204A1 (en) * 1998-09-22 2002-05-02 Bender Paul E. Method and apparatus for rapid assignment of a traffic channel in digital cellular communication systems
US6785550B1 (en) * 2000-11-28 2004-08-31 Lucent Technologies Inc. Mobile location estimation in a wireless communication system

Also Published As

Publication number Publication date
WO2004100565A2 (en) 2004-11-18
CN1549475A (en) 2004-11-24

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