Patent ID: 8059632
Filing Date: 2011-11-15
Classification: H04L,H04W

Abstract:
1. A method for uplink transmission of channel quality indicators (CQIs) by a user equipment (UE) in a wireless communications network that includes an eNodeB, wherein the eNodeB is capable of non-real-time (NRT) data transmission and voice-over-internet-protocol (VoIP) transmission comprising VoIP packets, each having an IP header and IP payload, and silence indication (SID) packets, each having an IP header and IP payload, wherein the VoIP packets are transmitted at a first fixed interval and representing a talkspurt period and the SID packets are transmitted at a second fixed interval greater than said first interval and representing a silence period, and wherein the UE is capable of receiving both NRT data transmission and VoIP transmission, the method comprising: at the eNB, converting the VoIP packets and SID packets into medium access control (MAC) protocol data units (PDUs) having MAC headers, and modifying the MAC header of a PDU with a control bit prior to transmission to the UE if the IP payload associated with said PDU is a SID packet that follows a VoIP packet or a VoIP packet that follows a SID packet; when the eNodeB is transmitting NRT data to the UE, transmitting CQIs to the eNodeB at a first rate, each CQI having a first fixed number of bits; and when the eNodeB is transmitting VoIP to the UE, during said identified silence period, not transmitting CQIs from the UE to the eNodeB.