초록 ▼

A system provides transmit diversity with feedback to enhance the reception of communication signals at a wireless communication terminal. Multiple antennae are provided at the base station. The multiple antennae transmit multi-carrier information signals such as OFDM including pilot tones. The wire

A system provides transmit diversity with feedback to enhance the reception of communication signals at a wireless communication terminal. Multiple antennae are provided at the base station. The multiple antennae transmit multi-carrier information signals such as OFDM including pilot tones. The wireless communication terminal receives the pilot tones and performs processing on those tones to detect the relationship between the information signals transmitted from the various antennae of the base station. A feedback signal, based on the comparison of the pilot tones communicates back to the base station information about the channels of the respective transmit antennae to the terminals. The base station modifies the transmission processing associated with the various transmit antennae based upon the feedback signal. The modified processing improves the reception of the information signals at the wireless communication terminal.

대표청구항 ▼

[ What is claimed is:] [1.] A method for enhancing communication reception at a wireless communication terminal, the method comprising the steps of:transmitting, from a first antenna, a first multi-carrier signal including N tones, N being an integer greater than 1, the N tones including at least on

[ What is claimed is:] [1.] A method for enhancing communication reception at a wireless communication terminal, the method comprising the steps of:transmitting, from a first antenna, a first multi-carrier signal including N tones, N being an integer greater than 1, the N tones including at least one pilot tone;transmitting, from a second antenna, a second multi-carrier signal including a plurality of tones the plurality of tones including at least one pilot tone;receiving a feedback signal from a wireless communication terminal, said feedback signal being representative of a processing of the at least one pilot tone of the first multi-carrier signal and the at least one pilot tone of the second multi-carrier signal;processing at least one of said first multi-carrier signal and said second multi-carrier signal in response to said feedback signal received from the wireless communication terminal; andadapting transmission of communication involving the first multi-carrier signal and the second multi-carrier signal in accordance with the received feedback signal.