发明名称 |
Methods and apparatus for random chip delay access priority |
摘要 |
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. <IMAGE> |
申请公布号 |
EP0994603(B1) |
申请公布日期 |
2005.09.14 |
申请号 |
EP19990307818 |
申请日期 |
1999.10.05 |
申请人 |
LUCENT TECHNOLOGIES INC. |
发明人 |
CHUAH, MOOI CHOO;YUE, ON-CHING;ZHANG, QINQING |
分类号 |
H04L29/08;H04B1/707;H04B7/26;H04L12/28;H04L12/56;H04W74/08 |
主分类号 |
H04L29/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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