JP5642382B2

5G,4G,3G

Title

CLOSED-LOOP RATE CONTROL FOR MULTI-CHANNEL COMMUNICATION SYSTEM

Application Number:

JP20090287916

Publication Date:

17-12-2014

Current Assignee:

Family ID:

Application Date:

18-12-2009

Publication Country:

US

Priority Date:

25-10-2002

Declaring Company:

Abstract  Abstract

PROBLEM TO BE SOLVED: To provide closed-loop rate control for data transmission in a plurality of parallel channels.

SOLUTION: An internal loop estimates channel conditions of communication links and selects data rates suitable for each of the plurality of parallel channels based on channel estimation. Reception SNRs are calculated based on the channel estimation by parallel channels; operation SNRs are calculated based on the reception SNRs and SNR offsets of the parallel channels; and the data rates are selected based on the operation SNRs of the parallel channels and one set of necessary SNRs of one set of data rates supported by systems. An external loop estimates the quality of the data transmission received by the plurality of parallel channels to adjust the operation of the internal loop. For example the SNR offset for each parallel channel is adjusted based on the statuses of packets received by the parallel channels.

COPYRIGHT: (C)2010JPO&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.