Techniques for adjacent channel interference mitigation

• US 9,998,858 B2
• Filed: 04/03/2014
• Issued: 06/12/2018
• Est. Priority Date: 04/05/2013
• Status: Active Grant

• Current Assignee: Apple Inc.
• Original Assignee: Intel Corporation
• Inventors: Khoryaev, Alexey, Panteleev, Sergey, Shilov, Mikhail, Chervyakov, Andrey, Fwu, Jong-Kae
• Primary Examiner(s): Chou, Albert T
• Application Number:
  US14/771,269
• Publication Number:
  US 20160007302A1
• Time in Patent Office: 1,531 Days
• CPC Class Codes: H04L 67/51 Discovery or management thereof, e.g. service location protocol [SLP] or web services
• CPC Class Codes: H04L 67/56 Provisioning of proxy services store-and-forward switching systems in data switching networks H04L12/54
• CPC Class Codes: H04W 4/00 Services specially adapted for wireless communication networks; Facilities therefor
• CPC Class Codes: H04W 4/021 Services related to particular areas, e.g. point of interest [POI] services, venue services or geofences
• CPC Class Codes: H04W 4/80 Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
• CPC Class Codes: H04W 52/10 Open loop power control
• CPC Class Codes: H04W 52/244 Interferences in heterogeneous networks, e.g. among macro and femto or pico cells or other sector / system interference [OSI]
• CPC Class Codes: H04W 72/0473 the resource being transmission power
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 76/11 Allocation or use of connection identifiers
• CPC Class Codes: H04W 76/14 Direct-mode setup
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]

Abstract

Techniques for adjacent channel interference mitigation are described. In one embodiment, for example, a user equipment (UE) may comprise logic, at least a portion of which is in hardware, the logic to associate the UE with a pico evolved node B (eNB) in a time-division duplex (TDD) picocell, identify an incongruent uplink (UL) sub-frame for the picocell, and select an enhanced UL transmit power for the incongruent UL sub-frame. Other embodiments are described and claimed.

Claims

1. Baseband processing circuitry, comprising:

a memory; and

logic, at least a portion of which is in circuitry coupled to the memory, the logic to;

identify a subframe set based on information comprised in a received message;

identify one or more uplink (UL) power control parameter values for the subframe set; and

determine, based on the one or more UL power control parameter values for the subframe set, a transmit power for transmission by user equipment (UE) of a UL message in a first time-division duplex (TDD) cell during a subframe in the subframe set, the first TDD cell to utilize a first frequency channel, the subframe to comprise a UL subframe according to a dynamically-selected TDD configuration of the first TDD cell, the subframe to comprise a downlink (DL) subframe according to a TDD configuration of a second TDD cell utilizing a second frequency channel that is adjacent to the first frequency channel.

2. The baseband processing circuitry of claim 1, the one or more UL power control parameter values for the subframe set to be comprised in the received message.

3. The baseband processing circuitry of claim 1, the one or more UL power control parameter values for the subframe set to include at least one fractional power control parameter.

4. The baseband processing circuitry of claim 1, the one or more UL power control parameter values for the subframe set to include a target received power parameter P₀ for the UE.

5. The baseband processing circuitry of claim 1, the one or more UL power control parameter values for the subframe set to include a compensation factor parameter α

.

6. The baseband processing circuitry of claim 1, the transmit power to comprise an increased transmit power selected to mitigate interference at an evolved node B (eNB).

7. The baseband processing circuitry of claim 1, the subframe to comprise an incongruent UL subframe.

8. A system, comprising:

the baseband processing circuitry of claim 1;

at least one radio frequency (RF) transceiver; and

at least one RF antenna.

9. At least one non-transitory computer-readable storage medium comprising a set of instructions that, in response to being executed at user equipment (UE), cause the UE to:

identify a subframe set based on information comprised in a received control message;

identify one or more uplink (UL) power control values for the subframe set; and

determine, based on the one or more UL power control values for the subframe set, a transmit power for transmission by the UE of a UL message in a first time-division duplex (TDD) cell during a subframe in the subframe set, the first TDD cell to utilize a first frequency channel, the subframe to comprise a UL subframe according to a dynamically-selected TDD configuration of the first TDD cell, the subframe to comprise a downlink (DL) subframe according to a TDD configuration of a second TDD cell utilizing a second frequency channel that is adjacent to the first frequency channel.

10. The at least one non-transitory computer-readable storage medium of claim 9, the one or more UL power control values to be comprised in the received message.

11. The at least one non-transitory computer-readable storage medium of claim 9, the one or more UL power control values to include at least one fractional power control parameter.

12. The at least one non-transitory computer-readable storage medium of claim 9, the one or more UL power control values to include a target received power parameter P₀ for the UE.

13. The at least one non-transitory computer-readable storage medium of claim 9, the one or more UL power control values to include a compensation factor parameter α

.

14. The at least one non-transitory computer-readable storage medium of claim 9, the transmit power to comprise an increased transmit power selected to mitigate interference at an evolved node B (eNB).

15. The at least one non-transitory computer-readable storage medium of claim 9, the subframe to comprise an incongruent UL subframe.

16. User equipment (UE), comprising:

a radio frequency (RF) transceiver to receive a control message from an evolved node B (eNB) of a first time-division duplex (TDD) cell; and

logic, at least a portion of which is in circuitry coupled to the RF transceiver, the logic to;

identify one or more subframes based on the control message;

identify one or more uplink (UL) power control parameters for the one or more subframes; and

determine, based on the one or more UL power control parameters for the one or more subframes, a transmit power for UL transmission of the UE in the first TDD cell during the one or more subframes, the first TDD cell to utilize a first frequency channel, the one or more subframes to comprise UL subframes according to a dynamically-selected TDD configuration of the first TDD cell, the one or more subframes to comprise downlink (DL) subframes according to a TDD configuration of a second TDD cell utilizing a second frequency channel that is adjacent to the first frequency channel.

17. The UE of claim 16, the one or more UL power control parameters to be comprised in the control message.

18. The UE of claim 16, the one or more UL power control parameters to include at least one fractional power control parameter.

19. The UE of claim 16, the one or more UL power control parameters to include a target received power parameter P₀ for the UE.

20. The UE of claim 16, the one or more UL power control parameters to include a compensation factor parameter α

.

21. The UE of claim 16, the transmit power to comprise an increased transmit power selected to mitigate interference at the eNB.

22. The UE of claim 16, the subframe to comprise an incongruent UL subframe of the TDD cell.