Method and apparatus for link adaptation in telecommunications networks

摘要: In an Enhanced Data rate for GSM Evolution (EDGE) type packet cellular network a transmitter (10, 14, 16) and receiver (20, 22, 12) are arranged to operate in example eight different modulation encoding schemes. The connected by communication channel (24). the there two counters (30, 32) a comparator (34) arranged so that count number N e and N s of received consecutive erroneous successful packets, the number is compared with respective stored numbers, when one the stored numbers equalled, signal supplied through control channel (24) switch to more or less robust encoding scheme as appropriate.