NLOS WIRELESS BACKHAUL DOWNLINK COMMUNICATION

摘要

A method for communicating over a wireless backhaul channel comprising generating a radio frame comprising a plurality of time slots, wherein each time slot comprises a plurality of symbols in time and a plurality of sub-carriers in a system bandwidth, broadcasting a broadcast channel signal comprising a transmission schedule to a plurality of remote units in a number of consecutive sub-carriers centered about a direct current (DC) sub-carrier in at least one of the time slots in the radio frame regardless of the system bandwidth, and transmitting a downlink (DL) control channel signal and a DL data channel signal to a first of the remote units, wherein the DL data channel signal is transmitted by employing a single carrier block transmission scheme comprising a Discrete Fourier Transform (DFT) spreading for frequency diversity.

主权项

1. A method for communicating over a wireless backhaul channel, comprising:
generating a radio frame comprising a plurality of time slots, wherein each time slot comprises a plurality of symbols in time and a plurality of sub-carriers in a system bandwidth, and wherein the radio frame comprises an adjustable link directionality ratio of a number of the time slots for an uplink (UL) direction and the number of time slots for a downlink (DL) direction to provide traffic load balancing; broadcasting a broadcast channel signal to a plurality of remote units in a number of consecutive sub-carriers centered about a direct current (DC) sub-carrier in at least one of the time slots in the radio frame regardless of the system bandwidth, wherein the broadcast channel signal comprises a transmission schedule comprising slot assignments that indicate a link direction and a transmission opportunity for a first of the plurality of remote units; and transmitting a DL control channel signal and a DL data channel signal to the first remote unit, wherein the DL control channel signal comprises DL control information that controls transmission of the DL data channel signal, wherein the broadcast channel signal, the DL control channel signal, and the DL data channel signal are transmitted by employing a time-frequency multiplex scheme, and wherein the DL data channel signal is transmitted by employing a single carrier block transmission scheme comprising a Discrete Fourier Transform (DFT) spreading for frequency diversity.