RESOURCE ASSIGNMENTS FOR UPLINK CONTROL CHANNEL

• US 20150319751A1
• Filed: 06/26/2015
• Published: 11/05/2015
• Est. Priority Date: 10/11/2010
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: GAAL, Peter, CHEN, Wanshi, MONTOJO, Juan, LUO, Xiliang
• Granted Patent: US 9,860,881 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04L 5/0016 Time-frequency-code
• CPC Class Codes: H04L 5/0037 Inter-user or inter-terminal allocation
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 72/51 based on terminal or device properties

Abstract

A wireless communication method includes allocating physical uplink control channel (PUCCH) data in first slot to a first orthogonal cover code (OCC). The method also includes allocating PUCCH data in a second slot of the same subframe to a different orthogonal cover code (OCC). Another method includes mapping PUCCH resources to physical resource blocks based on a user equipment (UE) specific signaling parameter (e.g., a resource index) and a number of symbols in a slot of a subframe.

Claims

1. A method of wireless communication, comprising:

determining a user equipment (UE) specific signaling parameter; and

transmitting in accordance with physical uplink control channel (PUCCH) resources mapped to physical resource blocks (PRBs) based on the UE specific signaling parameter and a number of symbols in a slot of a subframe.

2. The method of claim 1, in which the user equipment (UE) specific signaling parameter for a plurality of UEs is selected in a way that a metric of estimated interference between a pair of UEs is different between a first slot of the subframe and a second slot of the subframe.

3. The method of claim 2, in which the metric of estimated interference is expected average cross-correlation in time varying radio channels between the two OCCs assigned to the pair of UEs.

4. The method of claim 2, in which the PUCCH resources mapped to PRBs is further based on a frequency offset that is used for mapping a first PUCCH format 3 resource.

5. A method of wireless communication, comprising:

determining a user equipment (UE) specific signaling parameter; and

receiving in accordance with physical uplink control channel (PUCCH) resources mapped to physical resource blocks (PRBs) based on the UE specific signaling parameter and a number of symbols in a slot of a subframe.

6. An apparatus for wireless communication, comprising:

a memory; and

at least one processor coupled to the memory, the at least one processor being configured;

to determine a user equipment (UE) specific signaling parameter; and

to transmit in accordance with physical uplink control channel (PUCCH) resources mapped to physical resource blocks (PRBs) based on the UE specific signaling parameter and a number of symbols in a slot of a subframe.

7. The apparatus of claim 6, in which the UE specific signaling parameter for a plurality of UEs is selected in a way that a metric of estimated interference between a pair of UEs is different between a first slot of the subframe and a second slot of the subframe.

8. The apparatus of claim 7, in which the metric of estimated interference is expected average cross-correlation in time varying radio channels between the two OCCs assigned to the pair of UEs.

9. The apparatus of claim 7, in which the PUCCH resources mapped to PRBs is further based on a frequency offset that is used for mapping a first PUCCH format 3 resource.

10. An apparatus for wireless communication, comprising:

a memory; and

at least one processor coupled to the memory, the at least one processor being configured;

to determine a user equipment (UE) specific signaling parameter; and

to receive in accordance with physical uplink control channel (PUCCH) resources mapped to physical resource blocks (PRBs) based on the UE specific signaling parameter and a number of symbols in a slot of a subframe.

11. An apparatus for wireless communication, comprising:

means for determining a user equipment (UE) specific signaling parameter; and

means for transmitting in accordance with physical uplink control channel (PUCCH) resources mapped to physical resource blocks (PRBs) based on the UE specific signaling parameter and a number of symbols in a slot of a subframe.

12. An apparatus for wireless communication, comprising:

means for determining a user equipment (UE) specific signaling parameter; and

means for receiving in accordance with physical uplink control channel (PUCCH) resources mapped to physical resource blocks (PRBs) based on the UE specific signaling parameter and a number of symbols in a slot of a subframe.

13. A computer program product for wireless communication in a wireless network, comprising:

a computer-readable medium having non-transitory program code recorded thereon, the program code comprising;

program code to determine a user equipment (UE) specific signaling parameter; and

program code to transmit in accordance with physical uplink control channel (PUCCH) resources mapped to physical resource blocks (PRBs) based on the UE specific signaling parameter and a number of symbols in a slot of a subframe.

14. A computer program product for wireless communication in a wireless network, comprising:

a computer-readable medium having non-transitory program code recorded thereon, the program code comprising;

program code to program code to determine a user equipment (UE) specific signaling parameter; and

program code to receive in accordance with physical uplink control channel (PUCCH) resources mapped to physical resource blocks (PRBs) based on the UE specific signaling parameter and a number of symbols in a slot of a subframe.