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BASE STATION AND METHOD FOR IMPLEMENTING AN ADAPTIVE CLOSED-LOOP MIMO AND OPEN-LOOP MIMO TECHNIQUE IN A WIRELESS COMMUNICATION SYSTEM

  • US 20130022142A1
  • Filed: 07/20/2011
  • Published: 01/24/2013
  • Est. Priority Date: 07/20/2011
  • Status: Abandoned Application
First Claim
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1. A base station which has multiple antennas and also implements an adaptive closed-loop multiple input multiple output (MIMO) and open-loop MIMO technique, the base station comprising:

  • a receiver that receives user equipment reports over a period of time from a user equipment;

    a processor; and

    a memory that stores processor-executable instructions therein where the processor interfaces with the memory and executes the processor-executable instructions to enable the following;

    analyze a current user equipment report and a previous user equipment report received from the user equipment to determine if at least one channel condition parameter has a rate of change greater than a corresponding at least one threshold and if yes then use the open-loop MIMO technique when interacting with the user equipment and if no then use the closed-loop MIMO technique when interacting with the user equipment; and

    a transmitter that sends a message to the user equipment indicating whether currently utilizing the open-loop MIMO technique or the closed-loop MIMO technique to interact with the user equipment.

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