发明名称 |
RANDOM ACCESS IN A MOBILE TELECOMMUNICATIONS SYSTEM |
摘要 |
An uplink common physical channel (random access channel) frame structure is disclosed with a separate preamble and data portion. The preamble is used by a base station to detect that a mobile station is attempting a random access request. The data portion of the channel includes user data, and pilot symbols that provide energy for channel estimation during reception of the data portion. A guard interval (TG) is preferably inserted between the preamble and data portion of the frame, which enables data detection to occur during an idle period. As such, the frame structures for both the common physical (random access) uplink channel and dedicated physical (traffic) uplink channel are compatible.
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申请公布号 |
CA2331997(C) |
申请公布日期 |
2011.04.12 |
申请号 |
CA19992331997 |
申请日期 |
1999.05.07 |
申请人 |
TELEFONAKTIEBOLAGET LM ERICSSON |
发明人 |
FRANK, GEORG;GRANZOW, WOLFGANG;GUSTAFSSON, MARIA;OLOFSSON, HENRIK;OVESJO, FREDRIK |
分类号 |
H04J13/00;H04W74/08;H04B7/216;H04B7/26;H04J11/00;H04W88/02;H04W88/08 |
主分类号 |
H04J13/00 |
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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