Title:
通信システムにおける再送信に基づくアクセス優先順位のための方法および装置
Document Type and Number:
Japanese Patent JP3588017
Kind Code:
B2
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 parameters to access priority classes in order to influence the likelihood of a remote terminal completing a successful access request to a base station.
Inventors:
Moo Cho Cho
On-Chin Yue
Quinzing Zang
On-Chin Yue
Quinzing Zang
Application Number:
JP29173899A
Publication Date:
November 10, 2004
Filing Date:
October 14, 1999
Export Citation:
Assignee:
Lucent Technologies, Inc.
International Classes:
H04B7/26; H04L12/28; H04L12/56; H04L29/06; H04W74/08; H04W12/10; H04W84/04; (IPC1-7): H04Q7/38; H04L29/06
Domestic Patent References:
| JP9055693A | ||||
| JP9046347A | ||||
| JP9130447A |
Foreign References:
| US5729542 | ||||
| WO1998023109A1 |
Attorney, Agent or Firm:
Masao Okabe
Nobuaki Kato
Kazuo
Shinichi Usui
Ikuo Fujino
Takao Ochi
Teruhisa Motomiya
Norimichi Takanashi
Asahi Shinmitsu
Seiichiro Takahashi
Koji Yoshizawa
Nobuaki Kato
Kazuo
Shinichi Usui
Ikuo Fujino
Takao Ochi
Teruhisa Motomiya
Norimichi Takanashi
Asahi Shinmitsu
Seiichiro Takahashi
Koji Yoshizawa