发明名称 |
Adaptive transmission channel allocation method and system for ISM and unlicensed frequency bands |
摘要 |
A method and system for establishing a connection link between a master device and a plurality of slave devices in a communications network having a plurality of frequency channels within a radio frequency band known as the unlicensed ISM band, wherein the connection links between the master device and the slave devices are capable of being carried out in a frequency-hopping fashion. The method comprises the steps of sending a link request to the master device requesting establishment of a non-frequency-hopping connection link between the master device and a slave device; establishing the non-frequency-hopping connection link as requested if the master device is able to select a communication channel for such a connection link; and establishing or maintaining the connection link in the frequency-hopping fashion if the master device is unable to select such a communication channel. In order to establish the non-frequency-hopping connection link, channel conditions including the carrier power of the channel and the interference and noise levels adversely affecting the connection link are measured.
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申请公布号 |
US6760317(B1) |
申请公布日期 |
2004.07.06 |
申请号 |
US20000610758 |
申请日期 |
2000.07.06 |
申请人 |
NOKIA MOBILE PHONES LTD. |
发明人 |
HONKANEN MAURI;LAPPETELAINEN ANTTI;PALIN ARTO |
分类号 |
H04B1/713;H04B7/24;H04L1/00;H04L12/28;H04L12/56;H04L29/06;H04W72/08;H04W84/00;(IPC1-7):H04Q7/00 |
主分类号 |
H04B1/713 |
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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