Method and apparatus providing fast control channel feedback for multiple downlink carrier operations

Patent metadata

Field	Value
Publication number	US-9713125-B2
Application number	US-201313867508-A
Country	US
Kind code	B2
Filing date	Apr 22, 2013
Priority date	Dec 30, 2008
Publication date	Jul 18, 2017
Grant date	Jul 18, 2017

Abstract

A method and apparatus for fast control channel feedback for multiple downlink carrier operations are disclosed. A wireless transmit/receive unit (WTRU) receives signals over a plurality of downlink carriers, generates feedback for each of the plurality of downlink carriers based on the received signals, and transmits via a plurality of antennas, the feedback for at least one of the plurality of downlink carriers over a first physical channel and feedback for another of the plurality of downlink carriers over a second physical channel.

First claim

What is claimed is:

1. A wireless transmit/receive unit comprising:
a receiver configured to receive a first High-Speed Downlink Shared channel (HS-DSCH) signal on a primary serving cell, a second HS-DSCH signal on a first secondary serving cell, a third HS-DSCH signal on a second secondary serving cell, and a fourth HS_DSCH signal on a third secondary serving cell,
circuitry configured to:
generate a first hybrid automatic repeat request acknowledgement (HARQ-ACK) feedback relating to the first HS-DSCH signal and the second HS-DSCH signal and a second HARQ-ACK feedback relating to the third HS-DSCH signal and the fourth HS-DSCH signal; and
concentrate the first HARQ-ACK feedback and the second HARQ-ACK feedback; and

a transmitted configured to transmit the concatenated first HARQ-ACK feedback and the second HARQ-ACK feedback over a single uplink carrier.

2. The wireless transmit/receive unit of claim 1 , wherein the concatenated first HARQ-ACK feedback and the second HARQ-ACK feedback are transmitted via a high speed dedicated physical control channel (HS-DPCCH) with a spreading factor of 128.

3. The wireless transmit/receive unit of claim 1 , wherein the circuitry is further configured to generate a first channel quality indicator (CQI) relating to a first pair of serving cells and a second CQI relating to a second pair of serving cells.

4. The wireless transmit/receive unit of claim 3 , wherein the circuitry is further configured to transmit the first CQI and the second CQI over the single uplink carrier.

5. The wireless transmit/receive unit of claim 4 , wherein the first CQI and the second CQI are combined into a high speed dedicated physical control channel (HS-DPCCH).

6. The wireless transmit/receive unit of claim 1 , wherein the concatenated comprises time-multiplexing the first HARQ-ACK feedback and the second HARQ-ACK feedback.

7. The wireless transmit/receive unit of claim 1 , wherein the circuitry is further configured to generate a state reduction, wherein the state reduction maps actual hybrid automatic repeat request-acknowledgement states to reported hybrid automatic repeat request-acknowledgement states of a smaller set.

8. A method implemented in a wireless transmit/receive unit, the method comprising:
receiving a first High-Speed Downlink Shared channel (HS-DSCH) signal on a primary serving cell, a second HS-DSCH signal on a first secondary serving cell, a third HS-DSCH signal on a second secondary serving cell, and a fourth HS-DSCH signal on a third secondary serving cell;
generating a first HARQ-ACK feedback relating to the first HS-DSCH signal and the second HS-DSCH signal and a second HARQ-ACK feedback relating to the third HS-DSCH signal and the fourth HS-DSCH signal;
concatenated the first HARD-ACK feedback and the second HARD-ACK feedback; and
transmitting the first HARQ-ACK feedback and the second HARQ-ACK feedback over a single uplink carrier.

9. The method of claim 8 , wherein the concatenated first HARQ-ACK feedback and the second HARQ-ACK feedback are transmitted via a high speed dedicated physical control channel (HS-DPCCH) with a spreading factor of 128.

10. The method of claim 8 , further comprising generating a first CQI relating to a first pair of serving cells and a second CQI relating to a second pair of serving cells.

11. The method of claim 10 , further comprising transmitting the first CQI and the second CQI over the single uplink carrier.

12. The method of claim 11 , wherein the first CQI and the second CQI are combined into a high speed dedicated physical control channel (HS-DPCCH).

13. The method of claim 8 , wherein the concatenating comprises time-multiplexing the first HARQ-ACK feedback and the second HARQ-ACK feedback.

14. The method of claim 8 , further comprising generating a state reduction, wherein the state reduction maps actual hybrid automatic repeat request-acknowledgement states to reported hybrid automatic repeat request-acknowledgement states of a smaller set.

Assignees

• Interdigital Patent Holdings Inc

Inventors

• Pani Diana
• Pelletier Benoit
• Cai Lujing
• Marnier Paul
• Cave Christopher R
• Digirolamo Rocco

Classifications

• H04W72/20 Primary

  Control channels or signalling for resource management · CPC title

• H04W24/10

  Scheduling measurement reports {; Arrangements for measurement reports} · CPC title

• H04L1/1854

  Scheduling and prioritising arrangements · CPC title

• H04L1/0026 Primary

  Transmission of channel quality indication · CPC title

• H04W72/0406 Primary

  Electricity · mapped topic