×

Method and apparatus for receiving and transmitting signals in wireless communication system

  • US 8,792,436 B2
  • Filed: 01/29/2010
  • Issued: 07/29/2014
  • Est. Priority Date: 01/30/2009
  • Status: Active Grant
First Claim
Patent Images

1. A method of supporting multiple system modes in a wireless communication system, the method performed by a user equipment (UE) and comprising:

  • receiving a radio resource control (RRC) signal from a base station, wherein the RRC signal indicates at least one first type subframe in which the UE operates in a long term evolution (LTE) mode and at least one second type subframe in which the UE operates in an LTE-Advanced (LTE-A) mode;

    receiving first type downlink data in the at least one first type subframe,wherein the first type downlink data is received through a maximum of four transmit antennas of the base station;

    receiving second type downlink data in the at least one second type subframe,wherein the second type downlink data is received through a maximum of eight transmit antennas of the base station;

    generating a first type feedback value indicating channel status associated with the first type downlink data,wherein the first type feedback value is delivered to the base station based on a first feedback cycle;

    generating a second type feedback value indicating channel status associated with the second type downlink data,wherein the second type feedback value is delivered to the base station based on a second feedback cycle set to be shorter than the first feedback cycle;

    transmitting first type uplink data in the at least first type subframe,wherein the first type uplink data is transmitted by a single antenna of a plurality of antennas of the UE; and

    transmitting second type uplink data in the at least one second type subframe,wherein the second type uplink data is transmitted by the plurality of antennas of the UE.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×