Method for performing wireless switching

摘要

A wireless communication system includes an infrastructure device for transmitting and receiving communications to and from a plurality of user terminals. Each user terminal includes a receiver and a controller that receives a first orthogonal frequency division multiplexing (OFDM) signal on a first carrier frequency that has assignment information indicating a second carrier frequency to transmit uplink data and beam forming information. In response to the assignment information, a transmitter of the user terminal transmits a second OFDM signal on the second carrier frequency using a beam indicated in the beam forming information.

主权项

1. A wireless user terminal comprising:
a receiver and a controller configured to receive a first orthogonal frequency division multiplexing (OFDM) signal on a first carrier frequency of a downlink; wherein the first OFDM signal includes first carrier frequency assignment information indicating a second carrier frequency to transmit uplink data and first beam forming information indicating a first spatial beam; a transmitter and the controller configured in response to the first carrier frequency assignment information, to transmit a second OFDM signal on the second carrier frequency and using a first spatial beam over an antenna array as indicated by the first beam forming information; the receiver and the controller are further configured to receive a third OFDM signal on the first carrier frequency of the downlink; wherein the third OFDM signal includes second carrier frequency assignment information indicating a third carrier frequency to transmit uplink data and second beam forming information indicating a second spatial beam; the transmitter and the controller are further configured in response to the second carrier frequency assignment information, to transmit a fourth OFDM signal on the third carrier frequency and using a second spatial beam over the antenna array as indicated by the second beam forming information; the receiver and the controller are further configured to receive a fifth OFDM signal on the first carrier frequency of the downlink; wherein the fifth OFDM signal includes third carrier frequency assignment information indicating a fourth carrier frequency to receive downlink data and third beam forming information indicating a third spatial beam; and the receiver and the controller are further configured to receive a sixth OFDM signal on the fourth carrier frequency and third spatial beam in response to the third carrier frequency assignment information and the third beam forming information: wherein the first carrier frequency, the second carrier frequency, the third carrier frequency and the fourth carrier frequency are different from each other.