System and method of channel control in a wireless communication system

Patent metadata

Field	Value
Publication number	US-9998944-B2
Application number	US-201113998000-A
Country	US
Kind code	B2
Filing date	Sep 28, 2011
Priority date	Apr 29, 2011
Publication date	Jun 12, 2018
Grant date	Jun 12, 2018

Abstract

An apparatus may include a receiver arranged to wirelessly receive a downlink message allocating a set of component carriers and non-backward-compatible component carriers. The apparatus may include a processor and a control channel assignment module that is operable on the processor to determine timing for an acknowledgment message for responding to data transmitted in an uplink communication, and to locate a control channel resource for an acknowledgment message to data transmitted via a non-backward-compatible component carrier, the acknowledgement message to be carried by a component carrier. Other embodiments are disclosed and claimed.

First claim

The invention claimed is:

1. User equipment (UE), comprising:
a radio frequency (RF) receiver to wirelessly receive a downlink (DL) message from an evolved node B (eNB), the DL message to allocate a non-backward-compatible component carrier to the UE;
an RF transmitter to transmit data on an uplink (UL) channel via the non-backward-compatible component carrier; and
circuitry to:
identify a backward-compatible component carrier via which to receive an acknowledgment message transmitted by the eNB in response to the transmission of the data on the UL channel;
determine a timing for receiving the acknowledgment message;
determine a physical resource block (PRB) index associated with a physical uplink shared channel (PUSCH) PRB used for transmission of the data;
apply an extended mapping rule to determine a second PRB index based on the PRB index associated with the PUSCH PRB, the extended mapping rule to map PRBs of the backward-compatible component carrier and PRBs of the non-backward-compatible component carrier to respective PRB indices comprised in a same extended range of PRB indices; and
identify, among a plurality of control channel resources of a physical hybrid automatic repeat request (HARQ) indicator channel (PHICH) of the backward-compatible component carrier, a control channel resource comprising the acknowledgment message, the control channel resource to comprise a PHICH PRB associated with the second PRB index.

2. The UE of claim 1 , the acknowledgment message to comprise a hybrid automatic repeat request (HARQ) acknowledgement/non-acknowledgement (ACK/NAK) message.

3. The UE of claim 1 , wherein determining the timing for receiving the acknowledgment message comprises determining a DL subframe during which to receive the acknowledgment message.

4. The UE of claim 3 , the circuitry to:
identify a UL subframe during which the RF transmitter transmits the data on the UL channel; and
determine the DL subframe based on the UL subframe.

5. The UE of claim 1 , comprising an antenna coupled to one or both of the RF receiver and the RF transmitter.

6. Non-transitory computer-readable storage media having stored thereon instructions that, when executed, cause user equipment (UE) to:
receive a downlink (DL) message from an evolved node B (eNB), the DL message to allocate a non-backward-compatible component carrier to the UE;
transmit data on an uplink (UL) channel via the non-backward-compatible component carrier;
identify a backward-compatible component carrier via which to receive an acknowledgment message transmitted by the eNB in response to the transmission of the data on the UL channel;
determine a timing for receiving the acknowledgment message;
determine a physical resource block (PRB) index associated with a physical uplink shared channel (PUSCH) PRB used for transmission of the data;
apply an extended mapping rule to determine a second PRB index based on the PRB index associated with the PUSCH PRB, the extended mapping rule to map PRBs of the backward-compatible component carrier and PRBs of the non-backward-compatible component carrier to respective PRB indices comprised in a same extended range of PRB indices; and
identify, among a plurality of control channel resources of a physical hybrid automatic repeat request (HARQ) indicator channel (PHICH) of the backward-compatible component carrier, a control channel resource comprising the acknowledgment message, the control channel resource to comprise a PHICH PRB associated with the second PRB index.

7. The non-transitory computer-readable storage media of claim 6 , the acknowledgment message to comprise a hybrid automatic repeat request (HARQ) acknowledgement/non-acknowledgement (ACK/NAK) message.

8. The non-transitory computer-readable storage media of claim 6 , wherein determining the timing for receiving the acknowledgment message comprises determining a DL subframe during which to receive the acknowledgment message.

9. The non-transitory computer-readable storage media of claim 8 , having stored thereon instructions that, when executed, cause the UE to:
identify a UL subframe during which the RF transmitter transmits the data on the UL channel; and
determine the DL subframe based on the UL subframe.

10. A method, comprising:
receiving, at user equipment (UE), a downlink (DL) message from an evolved node B (eNB), the DL message to allocate a non-backward-compatible component carrier to the UE;
transmitting data on an uplink (UL) channel via the non-backward-compatible component carrier;
identifying, by circuitry of the UE, a backward-compatible component carrier via which to receive an acknowledgment message transmitted by the eNB in response to the transmission of the data on the UL channel;
determining a timing for receiving the acknowledgment message;
determining a physical resource block (PRB) index associated with a physical uplink shared channel (PUSCH) PRB used for transmission of the data;
applying an extended mapping rule to determine a second PRB index based on the PRB index associated with the PUSCH PRB, the extended mapping rule to map PRBs of the backward-compatible component carrier and PRBs of the non-backward-compatible component carrier to respective PRB indices comprised in a same extended range of PRB indices; and
identifying, among a plurality of control channel resources of a physical hybrid automatic repeat request (HARQ) indicator channel (PHICH) of the backward-compatible component carrier, a control channel resource comprising the acknowledgment message, the control channel resource to comprise a PHICH PRB associated with the second PRB index.

11. The method of claim 10 , the acknowledgment message to comprise a hybrid automatic repeat request (HARQ) acknowledgement/non-acknowledgement (ACK/NAK) message.

12. The method of claim 10 , wherein determining the timing for receiving the acknowledgment message comprises determining a DL subframe during which to receive the acknowledgment message.

13. The method of claim 12 , comprising:
identifying a UL subframe during which the RF transmitter transmits the data on the UL channel; and
determining the DL subframe based on the UL subframe.

Assignees

• Wang Ping
• Fwu Jong Kae
• Intel Corp

Inventors

• Wang Ping
• Fwu Jong-Kae

Classifications

• H04W72/21

  in the uplink direction of a wireless link, i.e. towards the network · CPC title

• H04W72/23

  in the downlink direction of a wireless link, i.e. towards a terminal · CPC title

• H04W72/20

  Control channels or signalling for resource management · CPC title

• H04W72/566

  of the information or information source or recipient · CPC title

• H04B7/0639

  Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection · CPC title