Method and apparatus for data transmission in a mobile telecommunication system supporting enhanced uplink service
DCFirst Claim
1. A method for transmitting data of a first channel not supporting Hybrid Automatic Retransmission Request (HARQ) and a second channel supporting the HARQ in a mobile telecommunication system which supports an enhanced uplink service, the method comprising the steps of:
- determining transmit power factors for the channels and determining if total transmit power required for transmission of the channels exceeds the maximum allowed power;
scaling-down the transmit power factor for the second channel if the total transmit power exceeds the maximum allowed power; and
transmitting data through the first and second channels using the scaled-down transmit power factor for the second channel and the transmit power factor for the first channel.
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Abstract
A method and an apparatus for data transmission in a mobile telecommunication system supporting an enhanced uplink service are provided. A Transport Format Combination (TFC) selector determines TF information for data to be transmitted through a first data channel not supporting Hybrid Automatic Repeat reQuest (HARQ) and a second data channel supporting HARQ, and determines gain factors for the first and second data channel, and first and second control channel carrying control information for the first and second data channel. The gain factors are input to a physical channel transmission controller, and the physical channel transmission controller scales-down the gain factor for the second channel if total transmit power required for transmission of the channels exceeds the predetermined maximum allowed power. A gain scaler adjusts transmit powers of the channels using the scaled gain factor and gain factors for the first data channel, the first control channel and the second control channel.
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Citations
28 Claims
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1. A method for transmitting data of a first channel not supporting Hybrid Automatic Retransmission Request (HARQ) and a second channel supporting the HARQ in a mobile telecommunication system which supports an enhanced uplink service, the method comprising the steps of:
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determining transmit power factors for the channels and determining if total transmit power required for transmission of the channels exceeds the maximum allowed power; scaling-down the transmit power factor for the second channel if the total transmit power exceeds the maximum allowed power; and transmitting data through the first and second channels using the scaled-down transmit power factor for the second channel and the transmit power factor for the first channel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An apparatus for transmitting data of a first channel not supporting Hybrid Automatic Repeat reQuest (HARQ) and a second channel supporting the HARQ in a mobile telecommunication system which supports an enhanced uplink service, the apparatus comprising:
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a controller for determining transmit power factors for the channels, determining if total transmit power required for transmission of the channels exceeds the maximum allowed power, and scaling down the transmit power factor for the second channel if the total transmit power exceeds the maximum allowed power; first and second channel generators for generating first and second data frames by performing channel-coding and modulation of the first and second channel data; and a gain scaling unit for adjusting the transmit powers of the first and second channels, with which the data frames of the first and second channels is transmitted, using the scaled transit power factor for the second channel and the transmit power factor for the first channel. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification