JP2009112016A

3G,2G

Title

Method and apparatus for time efficient retransmission using symbol accumulation

Application Number:

JP20080286879

Publication Date:

21-05-2009

Current Assignee:

Family ID:

Application Date:

07-11-2008

Declaring Company:

Publication Country:

US

Priority Date:

13-11-1997

Title

Method and apparatus for time efficient retransmission using symbol accumulation

Application Number:

JP20080286879

Family ID:

Publication Country:

US

Publication Date:

21-05-2009

Application Date:

07-11-2008

Priority Date:

13-11-1997

Current Assignee:

Declaring Company:

Abstract  Abstract

PROBLEM TO BE SOLVED: To improve retransmission through-put with less energy.

SOLUTION: When a wrong packet is received an efficient data transmission by symbol accumulation is implemented using the same frame as a new packet concurrently at a lower energy-per-bit level. A destination device receives data transmission and re-transmission demodulates the signal and divides the signal into a new packet and a re-transmission packet. The destination device 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.

COPYRIGHT: (C)2009JPO&INPIT

Note:

The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)

The information in grey was provided by the patent holder

The information in purple was extracted from the FrandAvenue

Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.

Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.

Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.

Family member:related patents or applications that share a common priority or original filing.