초록 ▼

Techniques to allocate the total transmit power to the transmission channels in a multi-channel communication system such that higher overall system spectral efficiency and/or other benefits may be achieved. The total transmit power may be initially allocated to the transmission channels based on a

Techniques to allocate the total transmit power to the transmission channels in a multi-channel communication system such that higher overall system spectral efficiency and/or other benefits may be achieved. The total transmit power may be initially allocated to the transmission channels based on a particular power allocation scheme (e.g., the water-filling scheme). The initial allocation may result in more power being allocated to some transmission channels than needed to achieve the required SNR (e.g., the SNR needed to achieve the maximum allowed data rate), which would then result in these transmission channels being operated in the saturation region. In such situations, the techniques reallocate the excess transmit power of transmission channels operated in the saturation region to other transmission channels operated below the saturation region. In this way, higher data rate may be achieved for the “poorer” transmission channels without sacrificing the performance of the “better” transmission channels.

대표청구항 ▼

What is claimed is: 1. A method of allocating transmit power to a plurality of transmission channels in a wireless communication system, comprising:identifying a set of transmission channels to be allocated transmit power;determining a total transmit power available to allocate to the transmission c

What is claimed is: 1. A method of allocating transmit power to a plurality of transmission channels in a wireless communication system, comprising:identifying a set of transmission channels to be allocated transmit power;determining a total transmit power available to allocate to the transmission channels;allocating the total transmit power to the transmission channels in the set based on a particular allocation scheme;determining an excess spectral efficiency based in part on the transmit power allocated to the transmission channels;reallocating one or more transmission channels with reduced amounts of transmit power to reduce the excess spectral efficiency; andreducing the transmit power allocated to each transmission channel to achieve a preferred discrete operating point, the preferred discrete operating point being associated with a target frame error rate.