Uplink power control signaling with carrier aggregation

Patent metadata

Field	Value
Publication number	US-9635610-B2
Application number	US-201213997221-A
Country	US
Kind code	B2
Filing date	Apr 11, 2012
Priority date	Sep 30, 2011
Publication date	Apr 25, 2017
Grant date	Apr 25, 2017

Abstract

Technology for providing uplink power control signaling for semi-persistent scheduling with carrier aggregation is disclosed. One method comprises receiving a transmitter power control (TPC) carrier aggregation (CA) physical downlink control channel (PDCCH) configuration information element (IE) identifying a location of information to adjust an uplink power control of a selected component carrier of the UE using semi-persistent scheduling. The TPC-CA-PDCCH configuration IE includes a carrier index value for the selected component carrier of the UE to allow a power level of the selected component carrier to be individually adjusted. A power level of a physical uplink shared channel and/or a physical uplink control channel can be adjusted for the selected component carrier.

First claim

What is claimed is:

1. A user equipment (UE) configured to provide uplink power control signaling for semi-persistent scheduling with carrier aggregation, comprising one or more processors and memory configured to:
receive a transmitter power control (TPC) physical downlink control channel (PDCCH) configuration information element (IE) identifying a TPC index value and a location of information to adjust an uplink power control of a selected component carrier associated with the UE, wherein the UE is configured to provide semi-persistent scheduling;
assign a TPC index value to each active component carrier based on the TPC index value assigned to the selected component carrier; and
adjust a power level of at least one of a physical uplink shared channel (PUSCH) and a physical uplink control channel (PUCCH) for the selected component carrier and each active component carrier, wherein a different TPC index value is assigned to each component carrier to identify the selected component carrier and each active component carrier to apply different power level adjustment to the selected component carrier and each active component carrier.

2. The UE of claim 1 , wherein a same power level adjustment is applied to the selected component carrier and each active component carrier.

3. The UE of claim 1 , wherein, in the TPC-PDCCH configuration IE, a separate single bit power control value and two bit power control value are provided for each active component carrier, wherein one of the single bit power control value and the two bit power control value are identified based on the TPC index value for each active component carrier.

4. A user equipment (UE) configured to provide uplink power control signaling for semi-persistent scheduling with carrier aggregation, comprising one or more processors and memory configured to:
receive a transmitter power control (TPC) carrier aggregation (CA) physical downlink control channel (PDCCH) configuration information element (IE) identifying a location of information to adjust an uplink power control of a selected component carrier of the UE using semi-persistent scheduling;
wherein the TPC-CA-PDCCH configuration IE includes a carrier index value for the selected component carrier of the UE to allow a power level of the selected component carrier to be individually adjusted;
assign a TPC index value to each active component carrier based on a TPC index value assigned to the selected component carrier; and
adjust a power level of at least one of a physical uplink shared channel (PUSCH) and a physical uplink control channel (PUCCH) for the selected component carrier, wherein a different TPC index value is assigned to each component carrier to identify the selected component carrier and each active component carrier to apply different power level adjustment to the selected component carrier and each active component carrier.

5. The UE of claim 4 , wherein the TPC-CA-PDCCH configuration IE is configured to operate based on format 3 or format 3A of a third generation partnership project (3GPP) long term evolution (LTE) downlink control information (DCI).

6. The UE of claim 4 , wherein the information to adjust an uplink power control of a selected component carrier is comprised of one of one bit and two bits.

7. The UE of claim 4 , wherein the TPC-CA-PDCCH configuration IE includes a carrier index value for each component carrier of the UE.

8. The UE of claim 4 , wherein the TPC-CA-PDCCH configuration IE includes a carrier index value for each active component carrier of the UE.

9. The UE of claim 4 , wherein the TPC-CA-PDCCH configuration IE includes a carrier index value for each component carrier of the UE and a separate single bit power control value and two bit power control value for each component carrier, wherein the single bit power control value and the two bit power control value are identified based on the carrier index value for each component carrier.

10. The UE of claim 4 , wherein the one or more processors and memory are further configured to adjust a power level of at least one of a physical uplink shared channel (PUSCH) and a physical uplink control channel (PUCCH) at each subframe.

11. The UE of claim 4 , wherein the one or more processors and memory are further configured to adjust a power level of at least one of a physical uplink shared channel (PUSCH) and a physical uplink control channel (PUCCH) at each persistent physical resource block allocation of the semi-persistent scheduling.

12. At least one non-transitory computer readable medium having instructions stored thereon for providing uplink power control signaling of a user equipment (UE) for semi-persistent scheduling with carrier aggregation, the instructions when executed on a machine to cause the machine to:
receive a transmitter power control (TPC) carrier aggregation (CA) physical downlink control channel (PDCCH) configuration information element (IE) identifying a location of information to adjust an uplink power control of a selected component carrier of the UE using semi-persistent scheduling, wherein the TPC-CA-PDCCH configuration IE includes a carrier index value for the selected component carrier of the UE to allow a power level of the selected component carrier to be individually adjusted;
assign a TPC index value to each active component carrier based on a TPC index value assigned to the selected component carrier; and
adjust a power level of at least one of a physical uplink shared channel (PUSCH) and a physical uplink control channel (PUCCH) for the selected component carrier, wherein a different TPC index value is assigned to each component carrier to identify the selected component carrier and each active component carrier to apply different power level adjustment to the selected component carrier and each active component carrier.

13. The non-transitory computer readable medium of claim 12 , the instructions when executed on a machine to cause the machine to:
receive the TPC-CA-PDCCH configuration IE on a physical downlink control channel (PDCCH) from an eNodeB associated with the selected component carrier.

14. The non-transitory computer readable medium of claim 12 , the instructions when executed on a machine to cause the machine to:
receive the TPC-CA-PDCCH configuration IE, wherein the information to adjust an uplink power control of a selected component carrier of the UE is comprised of one of a single bit and more than one bit.

15. The non-transitory computer readable medium of claim 12 , the instructions when executed on a machine to cause the machine to:
receive in the TPC-CA-PDCCH configuration IE a location of information to adjust an uplink power control of each component carrier of the UE.

16. The non-transitory computer readable medium of claim 12 , the instructions when executed on a machine to cause the machine to:
receive in the TPC-CA-PDCCH configuration IE a location of information to adjust an uplink power control of each active component carrier of the UE.

17. The non-transitory computer readable medium of claim 12 , the instructions when executed on a machine to cause the machine to:
provide, in the TPC-CA-PDCCH configuration IE, a carrier index value for each component carrier of the UE and a separate single bit power control value and two bit power control value for each component carrier, wherein the single bit power control value and the two bit power control value are identified based on the carrier index value for each component carrier.

Assignees

• Yang Rongzhen
• Fwu Jong-Kae
• Niu Huaning
• Intel Corp

Inventors

• Yang Rongzhen
• Fwu Jong-Kae
• Niu Huaning

Classifications

• H04W72/20

  Control channels or signalling for resource management · CPC title

• H04W72/30

  Resource management for broadcast services · CPC title

• H04W72/23

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

• H04W72/27

  between access points · CPC title

• H04W72/541

  using the level of interference · CPC title