초록 ▼

An efficient retransmission of data using symbol accumulation wherein the packet received in error is retransmitted at a lower energy-per-bit level concurrently in the same frame with the new packet. The destination device receives the data transmission and retransmission, demodulate the signal, and

An efficient retransmission of data using symbol accumulation wherein the packet received in error is retransmitted at a lower energy-per-bit level concurrently in the same frame with the new packet. The destination device receives the data transmission and retransmission, demodulate the signal, and separates the received data into the new and retransmitted packet. The destination device then accumulates the energy of the retransmitted packet with the energy already accumulated for the packet received in error and decodes the accumulated packet. The accumulation of the additional energy provided by the subsequent retransmissions improves the probability of a correct decoding. The throughput rate can be improved since the packet received in error is retransmitted concurrently with the transmission of the new data packet. The capacity is maximized since the retransmission of the packet received in error is at a lower energy level than that of the new packet.

대표청구항 ▼

[ We claim:] [1.] A method for decoding a data packet comprising the steps of:first receiving a transmission of said data packet to obtain a received packet;second receiving at least one retransmission of said data packet to obtain retransmitted packets;accumulating said received packet with said re

[ We claim:] [1.] A method for decoding a data packet comprising the steps of:first receiving a transmission of said data packet to obtain a received packet;second receiving at least one retransmission of said data packet to obtain retransmitted packets;accumulating said received packet with said retransmitted packets to obtain an accumulated packet; anddecoding said accumulated packetscaling code symbols of said received packet with a first gain factor;scaling code symbols of each of said retransmitted packets with second gain factors; andcombining said code symbols of said received packet with said code symbols of said retransmitted packets to obtain said accumulated packet.