Patent ID: 8913512

Claim:
A telecommunication apparatus enabled for high-speed packet access, the apparatus being arranged to operate according to a reduced and a further reduced mode of transmission of dedicated physical control channel transmission, the telecommunication apparatus comprising: a data transmission controller arranged to control sporadic data transmissions, determine whether an omission of a sporadic data transmission will significantly degrade performance, and disable transmission of that sporadic data transmission when it is determined that the omission will not significantly degrade performance, wherein the sporadic data transmissions include silence insertion descriptor frames transmitted in a silence period of a speech transmission, wherein the data transmission controller is arranged to determine that an omission of transmission of first and second silence insertion descriptor frames of the silence period will significantly degrade performance, and determine that an omission of transmission of a first number of silence insertion descriptor frames of the silence period will not significantly degrade performance, and wherein the first number of silence insertion descriptor frames are subsequent to the first and second silence insertion descriptor frames.