CA2281454A1 - Methods and apparatus for random chip delay access priority in a communications system - Google Patents

Methods and apparatus for random chip delay access priority in a communications system Download PDF

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Publication number
CA2281454A1
CA2281454A1 CA002281454A CA2281454A CA2281454A1 CA 2281454 A1 CA2281454 A1 CA 2281454A1 CA 002281454 A CA002281454 A CA 002281454A CA 2281454 A CA2281454 A CA 2281454A CA 2281454 A1 CA2281454 A1 CA 2281454A1
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CA
Canada
Prior art keywords
access priority
based access
communications system
chip delay
methods
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
Application number
CA002281454A
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French (fr)
Other versions
CA2281454C (en
Inventor
Mooi Choo Chuah
On-Ching Yue
Qinqing Zhang
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.)
Nokia of America Corp
Original Assignee
Lucent Technologies Inc
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 Lucent Technologies Inc filed Critical Lucent Technologies Inc
Publication of CA2281454A1 publication Critical patent/CA2281454A1/en
Application granted granted Critical
Publication of CA2281454C publication Critical patent/CA2281454C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
    • H04W74/0866—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a dedicated channel for access
    • H04W74/0875—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a dedicated channel for access with assigned priorities based access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices

Abstract

The present invention provides methods and apparatus for providing access priority in a MAC protocol of a communications system such as, for example, with respect to UMTS RACH. Particularly, the invention introduces several access priority methodologies including: (i) random chip delay access priority (RCDAP); (ii) random backoff based access priority (RBBAP); (iii) variable logical channel based access priority (VLCAP); (iv) UMTS-specific variable logical channel based access priority (VLCAP'); (v) probability based access priority (PBAP); and (vi) retransmission based access priority (REBAP). Each methodology associates some parameter or parameter's to access priority classes in order to influence the likelihood of a remote terminal completing a successful access request to a base station.
CA002281454A 1998-10-14 1999-09-08 Methods and apparatus for random chip delay access priority in a communications system Expired - Fee Related CA2281454C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/172,493 1998-10-14
US09/172,493 US6674765B1 (en) 1998-05-22 1998-10-14 Methods and apparatus for random chip delay access priority in a communications system

Publications (2)

Publication Number Publication Date
CA2281454A1 true CA2281454A1 (en) 2000-04-14
CA2281454C CA2281454C (en) 2004-07-06

Family

ID=22627931

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002281454A Expired - Fee Related CA2281454C (en) 1998-10-14 1999-09-08 Methods and apparatus for random chip delay access priority in a communications system

Country Status (6)

Country Link
US (1) US6674765B1 (en)
EP (1) EP0994603B1 (en)
JP (1) JP3521125B2 (en)
KR (1) KR100704068B1 (en)
CA (1) CA2281454C (en)
DE (1) DE69927227T2 (en)

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Also Published As

Publication number Publication date
EP0994603A2 (en) 2000-04-19
JP2000188784A (en) 2000-07-04
EP0994603A3 (en) 2001-11-21
DE69927227T2 (en) 2006-07-13
KR20000034991A (en) 2000-06-26
US6674765B1 (en) 2004-01-06
DE69927227D1 (en) 2005-10-20
KR100704068B1 (en) 2007-04-05
EP0994603B1 (en) 2005-09-14
CA2281454C (en) 2004-07-06
JP3521125B2 (en) 2004-04-19

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