WO2004014097B1 - Adaptive dual-mode reverse link scheduling method for wireless telecommunications networks - Google Patents

Adaptive dual-mode reverse link scheduling method for wireless telecommunications networks

Info

Publication number
WO2004014097B1
WO2004014097B1 PCT/IB2003/003394 IB0303394W WO2004014097B1 WO 2004014097 B1 WO2004014097 B1 WO 2004014097B1 IB 0303394 W IB0303394 W IB 0303394W WO 2004014097 B1 WO2004014097 B1 WO 2004014097B1
Authority
WO
WIPO (PCT)
Prior art keywords
active set
data rate
reverse link
reduced active
link channel
Prior art date
Application number
PCT/IB2003/003394
Other languages
French (fr)
Other versions
WO2004014097A1 (en
Inventor
Mo-Han Fong
Derek Yu
Jun Li
Ashvin Chheda
Wen Tong
Geng Wu
Original Assignee
Nortel Networks Ltd
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 Nortel Networks Ltd filed Critical Nortel Networks Ltd
Priority to AU2003249451A priority Critical patent/AU2003249451A1/en
Publication of WO2004014097A1 publication Critical patent/WO2004014097A1/en
Publication of WO2004014097B1 publication Critical patent/WO2004014097B1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0025—Transmission of mode-switching indication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/16—Performing reselection for specific purposes
    • H04W36/18—Performing reselection for specific purposes for allowing seamless reselection, e.g. soft reselection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/16—Performing reselection for specific purposes
    • H04W36/22—Performing reselection for specific purposes for handling the traffic

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The present invention provides for a scheduling scheme to be used with respect to a given mobile station. It is determined whether the given mobile station is or is not in softy handoff. This is performed through examining a reduced active set. The reduced active set is based upon the active set, and the selection of the reduced active set includes considerations such as received reverse link channel signal strength. If the mobile station is in soft hand-off or with reduced active set size of greater than one, congestion control scheduling of reverse link communications from the given mobile station is utilized, using a data rate set by the congestion control of the reverse link channel. If the mobile station is not in soft-handoff or with reduced active set size of one, explicit scheduling of the reverse link communications from the given mobile station is utilized, using a data rate set by the explicit data rate control of the reverse link channel.

Claims

AMENDED CLAIMS
[received by the International Bureau on 30 January 2004 (30.01.04); original claims 1-26 replaced by new claims 1-20 (4 pages)]
+ STATEMENT
1. A base station controller (BSC), comprising: an active set generator; and a reduced active set generator, wherein the reduced set generator employs output of the active set generator, and wherein the BSC is configured to send indicia of the reduced active set to a BTS.
2. The BSC of Claim 1, wherein the reduced set generator employs reverse link and forward link channel signal strength to determine members of the reduced active set.
3. The BSC of Claim 1, wherein the active set generator employs measurements of at least one pilot channel energy strength.
4. The BSC of Claim 1, wherein the BSC commands an RDCCCH channel to be used if the number of entries in the reduced active set is greater than one.
5. The BSC of Claim 1, wherein the BSC commands an SCACH channel to be used if the number of entries in the reduced active set is equal to one.
6. An MS, comprising: means for extracting information employable to determine a set of members of an active sec; means For extracting information employable lo determine a set of members of a reduced active set; and means for receiving a plurality of explicit data rate mode channels over a reverse link; means for selecting a congestion control scheduling mode if the number of members of the reduced active set are two or more.
7. The MS of Claim 6, further comprising means for selecting an explicit^ scheduling mode if the number of members of the reduced active set is equal to one.
S. The MS of Claim 6, further comprising means for selecting a congestion control mode if the number of members in the reduced active set is equal to one.
9. The MS of Claim 6, further comprising means for selecting one of a plurality of explicit data rate mode channels.
10. The MS of Claim 7, wherein the MS is configured to extract a reverse link channel data rate from the explicit control data rate channel.
11. The MS of Claim 8, wherein the MS is configured to extract reverse link channel data rate from the congestion control data rate channel.
12. The MS of Claim 11, configured to transmit over a reverse link at the lower of the two data rates extracted from a plurality of congestion control channels.
1 . A method for dynamically switching between explicit reverse link channel data rate control and reverse link channel data rate congestion control, comprising: generating a reduced active set; transmitting indicia of the reduced active set to a BTS; transmitting indicia of the reduced active set to an MS; and if the number of members of the reduced active set is greater than one, transmitting reverse link channel data rate control information in congestion control mode.
14. The method of Claim 13, wherein the step of generating a reduced active set employs the members of an active set.
15. The method of Claim 13, further comprising extracting data rate information in congestion control mode by a mobile station.
16. The method of Claim 13, wherein if the numbers of the members of the reduced active set is equal to one, transmitting reverse link channel data rate control information in a explicit control mode.
17. The method of Claim 16, further comprising extracting data rate information in explicit mode by a mobile station.
18. A computer program product for dynamically switching between explicit reverse link channel data rate control and reverse link channel data rate congestion control, the computer program product having a medium with a computer program embodied thereon, the computer program comprising: computer code for generating a reduced active set; computer code for transmitting indicia of the reduced active set to a BTS; computer code for transmitting indicia of the reduced active set to an MS; and if the number of members of the reduced active set is greater than one, computer code for transmitting reverse link channel data rate control information in congestion control mode.
19. A processor for dynamically switching between explicit reverse link channel data rate control and reverse link channel data rate congestion control, the processor including a computer program comprising: compuier code for generating a reduced active set; computer code for transmitting indicia of the reduced active set to a BTS; computer code for transmitting indicia of the reduced active set to an MS; and if the number of members of the reduced active set is greater than one, computer code for transmitting reverse link channel data rate control information in congestion control mode.
21
20. A system for dynamically switching between explicit reverse link channel data rate control and reverse link channel data rate congestion control, comprising: means for generating a reduced active set; means for transmitting indicia of the reduced active set to a BTS; means for transmitting indicia of the reduced active set to an MS; and if the number of members of the reduced active set is greater than one, means for transmitting reverse link channel data rate control information in congestion control mode.
22
PCT/IB2003/003394 2002-07-31 2003-07-28 Adaptive dual-mode reverse link scheduling method for wireless telecommunications networks WO2004014097A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003249451A AU2003249451A1 (en) 2002-07-31 2003-07-28 Adaptive dual-mode reverse link scheduling method for wireless telecommunications networks

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US40019702P 2002-07-31 2002-07-31
US60/400,197 2002-07-31

Publications (2)

Publication Number Publication Date
WO2004014097A1 WO2004014097A1 (en) 2004-02-12
WO2004014097B1 true WO2004014097B1 (en) 2004-04-01

Family

ID=31495801

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2003/003394 WO2004014097A1 (en) 2002-07-31 2003-07-28 Adaptive dual-mode reverse link scheduling method for wireless telecommunications networks

Country Status (3)

Country Link
CN (1) CN1672453A (en)
AU (1) AU2003249451A1 (en)
WO (1) WO2004014097A1 (en)

Cited By (1)

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CN100584118C (en) * 2004-05-04 2010-01-20 三星电子株式会社 Apparatus and method for supporting soft combining of scheduling signals for uplink packet data service in a mobile communication system

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DE602005005991D1 (en) * 2004-06-17 2008-05-21 Nokia Siemens Networks Gmbh METHOD FOR TERMINATING A MOBILE ENDING DEVICE FOR SOFT HANDOVER
US7561550B2 (en) * 2004-07-26 2009-07-14 Samsung Electronics Co., Ltd. Method and apparatus for scheduling user equipment in a soft handover region for uplink packet transmission
KR20090038915A (en) * 2004-09-15 2009-04-21 가부시키가이샤 엔.티.티.도코모 Mobile communication control method and mobile station
AU2005229670B2 (en) * 2004-11-04 2008-01-24 Samsung Electronics Co., Ltd. Method and apparatus for scheduling uplink data transmission for mobile station in soft handover region in a mobile communication system
GB2420247B (en) 2004-11-10 2008-02-27 Siemens Ag A method of scheduling one or more terminals from a base station
JP4773463B2 (en) 2005-02-07 2011-09-14 テレフオンアクチーボラゲット エル エム エリクソン（パブル） Method and apparatus for handling low reliability scheduling grants in communication networks
EP1696615A1 (en) * 2005-02-28 2006-08-30 NTT DoCoMo, Inc. Transmission rate control method, mobile station, and radio network controller
EP1696616A1 (en) 2005-02-28 2006-08-30 NTT DoCoMo, Inc. Transmission rate control method, mobile station, and radio network controller
US7693537B2 (en) 2005-03-22 2010-04-06 Ntt Docomo, Inc. Transmission rate control method, transmission rate control system, and mobile station
US7664466B2 (en) * 2005-03-22 2010-02-16 Ntt Docomo, Inc. Transmission rate control method, transmission rate control system, and mobile station
JP2006311460A (en) * 2005-05-02 2006-11-09 Ntt Docomo Inc Mobile communication method and radio network controller
JP4761890B2 (en) * 2005-08-23 2011-08-31 株式会社エヌ・ティ・ティ・ドコモ Transmission rate control method, radio base station, and radio network controller
GB2432477A (en) 2005-10-31 2007-05-23 Nec Corp Enhanced dedicated channel reporting for UMTS
US9179345B2 (en) 2005-10-31 2015-11-03 Nec Corporation Enhanced dedicated-channel reporting for UMTS
CN101242245B (en) * 2007-02-06 2012-09-05 华为技术有限公司 A method and device for processing response message

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US6151502A (en) * 1997-01-29 2000-11-21 Qualcomm Incorporated Method and apparatus for performing soft hand-off in a wireless communication system
US5923650A (en) * 1997-04-08 1999-07-13 Qualcomm Incorporated Method and apparatus for reverse link rate scheduling
US6236646B1 (en) * 1997-09-09 2001-05-22 Telefonaktiebolaget Lm Ericsson (Publ) Packet data communications scheduling in a spread spectrum communications system
US6516196B1 (en) * 1999-04-08 2003-02-04 Lucent Technologies Inc. Intelligent burst control functions for wireless communications systems
WO2000076251A1 (en) * 1999-06-09 2000-12-14 Cisco Systems, Inc. Method and system for dynamic soft handoff resource allocation in a wireless network

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100584118C (en) * 2004-05-04 2010-01-20 三星电子株式会社 Apparatus and method for supporting soft combining of scheduling signals for uplink packet data service in a mobile communication system

Also Published As

Publication number Publication date
AU2003249451A1 (en) 2004-02-23
CN1672453A (en) 2005-09-21
WO2004014097A1 (en) 2004-02-12

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