Terminal, base station, and codec mode switching method
AssigneePanasonic Intellectual Property Corporation of America
InventorsTakako Hori, Prateek Basu Mallick, Hidetoshi Suzuki, Ayako Horiuchi, Joachim Loehr
Life of this patent
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Abstract
A UE includes an EUTRA-CMR reception unit that receives a codec mode request (EUTRA-CMR) including a codec mode that is determined by an eNB in accordance with a radio condition of the UE, a mode switching notification unit that notifies an encoder of switching to the codec mode included in the received codec mode request; and a mode switching acknowledgement unit that transmits a response message to the eNB when confirming that the encoder switches the codec mode.
Claims19
A terminal, for use in a communication system including a base station, a first set of terminals including the terminal which support a codec mode request message, and a second set of terminals which do not support the codec mode request message, the terminal comprising:
- capability notification circuitry, which, in operation, notifies the base station of capability information indicating that the terminal supports the codec mode request message;
- reception circuitry, which receives, from the base station, in response to the capability information, the codec mode request message including a codec mode that is determined by the base station in accordance with a radio condition of the terminal, wherein the base station sends the codec mode request message only to the first set of terminals in response to the capability information received therefrom, and does not send the codec mode request message to the second set of terminals;
- mode switching notification circuitry, which, in operation, notifies an encoder of switching to the codec mode included in the codec mode request message;
- and
- mode switching acknowledgement circuitry, which, in operation, transmits a response message to the base station when confirming that the encoder switches the codec mode.
A base station, for use in a communication system including the base station, a first set of terminals that support a codec mode request message, and a second set of terminals that do not support the codec mode request message, the base station comprising:
- reception circuitry, which, in operation, receives, from a terminal which is one of the first set of terminals, capability information indicating that the terminal supports the codec mode request message;
- radio condition detection circuitry, which, in operation, detects a radio condition of the terminal;
- transmission circuitry, which, in response to the capability information, transmits, to the terminal, the codec mode request message including a codec mode that is determined by the base station in accordance with the radio condition of the terminal, wherein the base station sends the codec mode request message only to the first set of terminals in response to the capability information received therefrom, and does not send the codec mode request message to the second set of terminals;
- and
- mode switching acknowledgement reception circuitry, which, in operation, receives, from the terminal, a response message indicating completion of switching to the codec mode included in the codec mode request message.
A codec mode switching method implemented by a terminal used in a communication system including a base station, a first set of terminals including the terminal which support a codec mode request message, and a second set of terminals which do not support the codec mode request message, the codec mode switching method comprising:
- notifying the base station of capability information indicating that the terminal supports the codec mode request message;
- receiving, from the base station in response to the capability information, the codec mode request message including a codec mode that is determined by the base station in accordance with a radio condition of the terminal, wherein the base station sends the codec mode request message only to the first set of terminals in response to the capability information received therefrom, and does not send the codec mode request message to the second set of terminals;
- notifying an encoder of switching to the codec mode included in the codec mode request message;
- and
- transmitting a response message to the base station when confirming that the encoder switches the codec mode.
A codec mode switching method implemented by a base station used in a communication system including the base station, a first set of terminals that support a codec mode request message, and a second set of terminals that do not support the codec mode request message, the codec mode switching method comprising:
- receiving, from a terminal which is one of the first set of terminals, capability information indicating that the terminal supports the codec mode request message;
- detecting a radio condition of the terminal;
- transmitting, to the terminal in response to the capability information, the codec mode request message including a codec mode that is determined by the base station in accordance with the radio condition of the terminal, wherein the base station sends the codec mode request message only to the first set of terminals in response to the capability information received therefrom, and does not send the codec mode request message to the second set of terminals;
- and
- receiving, from the terminal, a response message indicating completion of switching to the codec mode included in the codec mode request message.
Dependencies are inferred from the claim text.