发明名称 |
CHANNEL HOPPING IN A RADIO COMMUNICATIONS SYSTEM |
摘要 |
The invention relates to a method and apparatus for channel hopping between mobile stations (MS1-MS3) and a base station (BS1) in a radio communications system. A channel allocation means (211) within the base station (BS1) generates channel hopping sequences that are transmitted via a control channel (SACCH) to hopping sequence lists (204-206) in the mobile stations (MS1-MS3). The hopping sequences are also transmitted to corresponding hopping sequence lists (201-203) in the base station (BS1). A channel hopping sequence is divided into a number of sequence intervals (Ti) corresponding to the time between two adjacent channel hops within a channel hopping sequence. In the channel allocation means (211) the attenuation ( delta ) of the connections (F1-F3) and the interference (I(channel,t)) of the channels are continuously being observed within each sequence interval (Ti). The channel allocation means (211) generates channel hopping sequences according to the principle that a connection that has poor connection quality will be allocated a channel hopping sequence with channels of high channel quality and connections with successively better connection quality are allocated channel hopping sequence having successively poorer channels. |
申请公布号 |
EP0890224(A1) |
申请公布日期 |
1999.01.13 |
申请号 |
EP19970926315 |
申请日期 |
1997.05.22 |
申请人 |
TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) |
发明人 |
ALMGREN, KNUT, MAGNUS;OLOFSSON, HAKAN, GUNNAR;PERSSON, YNGVE, BENGT |
分类号 |
H04J1/00;H04B1/713;H04B7/12;H04B7/24;H04J3/00;H04W16/06;H04W72/08;(IPC1-7):H04B1/713 |
主分类号 |
H04J1/00 |
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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