Telefonaktiebolaget Lm Ericsson (publ)

Jan Erik S&ouml;derkvist

Lars Peter Wahlstr&ouml;m

Peter Wahlstr&ouml;m

A method and apparatus for evaluating interference within a timeslot of a received TDMA signal is described. An average received signal strength is calculated for a plurality of repeating segments within a TDMA timeslot. The segment sizes are dependent upon the efficiency of the error correction coding scheme utilized by a selected channel type. The calculated received signal strengths for the plurality of the segments are applied to a lowpass filter. The output of the lowpass filter is processed to determine the level of interference within the timeslot.

Method and apparatus for evaluating a timeslot in a TDMA signal

A cellular network is controlled such that time slots of transmissions from base stations with the same operating frequency are synchronized. Moreover, adjacent base stations using the same frequency are controlled such that, at any given time, they are transmitting different sync words.

Reducing interference in telecommunications systems

A base station monitors signals received from cochannel interferers, and detects the air frame positions of the interfering transmissions. The base station then adjusts the air frame position of its own transmissions such that it minimizes the possibility of interference with the cochannel interferers.

Growing community of inventors

Enebyberg, Sweden

Jan Erik Söderkvist

Growing community of inventors

Enebyberg, Sweden

Jan Erik S&ouml;derkvist

Jan Erik Söderkvist