EP 2494549 A1 20120905 - CODEC RATE ADAPTATION FOR RADIO CHANNEL RATE CHANGE
Title (en)
CODEC RATE ADAPTATION FOR RADIO CHANNEL RATE CHANGE
Title (de)
CODEC-FREQUENZANPASSUNG FÜR FUNKKANALFREQUENZÄNDERUNGEN
Title (fr)
ADAPTATION DU DÉBIT DE CODAGE-DÉCODAGE POUR LA MODIFICATION DU DÉBIT DE CANAL RADIO
Publication
Application
Priority
- US 60740409 A 20091028
- SE 2010051065 W 20101004
Abstract (en)
[origin: WO2011053222A1] Speech signals to be sent between a first node and a second node via a wireless communication system are Adaptive Multi-Rate (AMR) encoded. A need to change the first node's first data transmission rate over a radio interface to a second different data transmission rate is determined. A new AMR source bit rate is then determined for both nodes. Information is sent to the second node, in advance of changing the data transmission rate over the radio interface, requesting the second node to change towards the new AMR source bit rate. After a predetermined time period sufficient for the second node to change from the current AMR source bit rate to the new AMR source bit rate expires or after the second node indicates a change to the new AMR source bit rate, the first node starts transmitting at the second data transmission rate over the radio interface.
IPC 8 full level
G10L 19/14 (2006.01); H04L 1/00 (2006.01); H04W 28/04 (2009.01)
CPC (source: EP)
H04L 1/0014 (2013.01); H04W 28/22 (2013.01); H04W 76/10 (2018.01); H04W 92/18 (2013.01)
Citation (search report)
See references of WO 2011053222A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2011053222 A1 20110505; CN 102667925 A 20120912; CN 102667925 B 20140108; EP 2494549 A1 20120905
DOCDB simple family (application)
SE 2010051065 W 20101004; CN 201080048503 A 20101004; EP 10827232 A 20101004