Abstract
(57) Summary In mobile radiotelephone systems employing TDMA or CDMA, mobile units (5, 7) often have to determine the timing and approximate power required for transmission to the base station. Information broadcasting by the base station allows the mobile station to approximate its distance from each base station (1) and thus determine the coarse sector location based on the average signal strength received. Broadcast information may include an average radial distribution of signal strength versus distance. From the broadcast information, the mobile station (5, 7) determines the propagation loss for the transmission to the base station and the appropriate power level and timing for the transmission. Therefore, the mobile station (5, 7) sends a signal to the base station (1) at the decision signal timing and power level.
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| Not Available | 21/10/1998 | ISLD-190001-020 | ERICSSON INC | No | Family Member | ||||
| Not Available | 21/10/1998 | ISLD-190001-060 | RESEARCH IN MOTION LTD | No | Family Member | ||||
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| KR950704892A | ----- | ----- | ----- | ----- | ----- | ----- | ----- | |||
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| Publication No | Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | Status | National Phase Entries | |||||
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