发明名称 |
A system for transmitting packet data in radio telephone TDMA systems |
摘要 |
<p>The invention relates to a method for transmitting packet data in a cellular system. The number of time slots in a TDMA frame dedicated for packet transmission varies according to transmission needs and each logical channel consisting of corresponding time slots in consecutive TDMA frames is independent of the other logical channels. A data packet is encoded in an information channel frame consisting of N-1 information bursts, and between the frames there can be an acknowledge/retransmission request burst (ARQ) reporting that a received frame was error-free or requesting retransmission. Thus, the information channel consists of repeated sequences of N bursts. Also disclosed are the structure of a packet paging burst (PP), packet random access burst (PRA), packet access grant burst (PAG), acknowledge/retransmission request burst (ARQ) as well as the use of the bursts in starting and maintaining the transmission. <IMAGE></p> |
申请公布号 |
EP0687078(A2) |
申请公布日期 |
1995.12.13 |
申请号 |
EP19950303825 |
申请日期 |
1995.06.05 |
申请人 |
NOKIA MOBILE PHONES LTD. |
发明人 |
HAMALAINEN, JARI;KARPPANEN, ARTO;HONKASALO, ZHI CHUN;JOKINEN, HARRI;LING, WANG |
分类号 |
H04B7/212;H04B7/26;H04L12/56;H04W28/04;H04W52/02;H04W68/00;H04W72/14;H04W74/04;H04W74/08;H04W92/10;(IPC1-7):H04B7/26 |
主分类号 |
H04B7/212 |
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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