Antenna selection scheme based on information bits

摘要

A method, transmitter node, and receiver node for communicating a transport block of information bits from the transmitter node to the receiver node are provided. The transmitter node encodes the information bits and divides the coded bits into antenna selection bits and modulation bits. The antenna selection bits are used to select a transmit antenna from a plurality of transmit antennas. The modulation bits are used by a modulator to select modulation symbols for transmission utilizing the selected antenna. The receiver node receives the radio signal with a front-end receiver and computes a plurality of combined signals, each corresponding to one hypothesized transmit antenna at the transmitter node. The receiver forwards the plurality of combined signals to a soft value computer, which computes soft values for the antenna selection and modulation bits. The soft values are combined and decoded to produce decision bits for recovering the transport block.

主权项

1. A method of communicating a transport block of information bits from a transmitter node to a receiver node, wherein the transmitter node includes a channel encoder for encoding the information bits, a modulator for receiving coded information bits and selecting modulation symbols, and a transmitter for transmitting the modulation symbols in a radio signal through a transmit antenna, and wherein the receiver node includes a diversity combining front-end receiver for receiving the radio signal, and a channel decoder for decoding the coded information bits, the method comprising the steps of:
after encoding the information bits by the channel encoder, dividing the coded bits into a first part comprising antenna selection bits and a second part comprising modulation bits; utilizing the antenna selection bits by an antenna selection unit to select a transmit antenna from a plurality of transmit antennas; utilizing the modulation bits by the modulator to select modulation symbols for transmission in the radio signal; and transmitting the radio signal by the transmitter utilizing the selected antenna; wherein the step of transmitting the radio signal includes transmitting an orthogonal frequency division multiplexed, OFDM radio signal, which includes a group of N resource elements defined in time and frequency domains, where N is an integer greater than or equal to 1, and wherein the group of N resource elements includes a plurality of resource elements located consecutively in the frequency domain.