Method and apparatus for performing uplink transmit diversity
AssigneeInterDigital Patent Holdings, Inc.
InventorsBenoit Pelletier, Paul Marinier, Christopher R. Cave, Fengjun Xi
Life of this patent
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Abstract
A method and apparatus for performing uplink (UL) transmit diversity implemented in a wireless transmit/receive unit (WTRU) includes receiving a signal including precoding information. The precoding information is detected and applied to an UL transmission. The UL transmission is transmitted with the applied precoding information.
Claims20
A method for performing uplink (UL) transmit diversity implemented in a wireless transmit/receive unit (WTRU), comprising:
- the WTRU transmitting a pilot bit on at least one transmit antenna;
- the WTRU receiving a signal including uplink precoding information, wherein the uplink precoding information includes UL precoding weights;
- the WTRU detecting the uplink precoding information and applying the UL precoding weights to an UL transmission;
- and
- the WTRU transmitting the UL transmission with the applied precoding weights.
A method of signaling precoding weight information implemented in a wireless/transmit receive unit (WTRU), comprising:
- the WTRU determining a precoding weight information for application to an uplink (UL) transmission wherein the determined precoding information is an index to a list of a precoding weight vector;
- the WTRU transmitting the determined precoding weight information;
- and
- the WTRU transmitting an UL transmission having the applied precoding information.
A wireless transmit/receive unit (WTRU), comprising:
- a receiver;
- a transmitter;
- and
- a processor in communication with the receiver and the transmitter, the processor configured to transmit a pilot bit on at least one transmit antenna, receive a signal including uplink precoding information, wherein the uplink precoding information includes UL precoding weights, detect the uplink precoding information and applying the UL precoding weights to an UL transmission, and transmit the UL transmission with the applied precoding weights.
Dependencies are inferred from the claim text.