Interference mitigation in an accessory for a wireless communication device

• US 10,028,250 B2
• Filed: 07/29/2011
• Issued: 07/17/2018
• Est. Priority Date: 07/29/2011
• Status: Active Grant

• Current Assignee: Google Technology Holdings LLC (Alphabet Inc.)
• Original Assignee: Google Technology Holdings LLC (Alphabet Inc.)
• Inventors: Nory, Ravikiran, Kuchibhotla, Ravi, Love, Robert T., Nangia, Vijay, Stewart, Kenneth A.
• Primary Examiner(s): Hsu, Alpus H
• Assistant Examiner(s): Thai, Camquyen
• Application Number:
  US13/193,872
• Publication Number:
  US 20130028200A1
• Time in Patent Office: 2,545 Days
• Field of Search: 455450, 455509, 455522, 455423, 370329, 370252, 370350, 370503, 370344, 73579, 73592, 381315, 704500
• CPC Class Codes: H04L 1/08 by repeating transmission, e.g. Verdan system H04L1/1858 and H04L1/189 take precedence
• CPC Class Codes: H04W 28/04 Error control
• CPC Class Codes: H04W 52/04 TPC
• CPC Class Codes: H04W 72/02 Selection of wireless resources by user or terminal

Abstract

A method in a wireless communication terminal includes receiving configuration signaling for transmitting on a first set of radio resources wherein transmitting only on the first set of radio resources leads to a time-domain periodic repetitive pattern of transmissions from the terminal in a transmission interval that causes interference to a companion device communicably coupled to the wireless communication terminal. The terminals selects a second set of radio resources for transmitting on in the transmission interval such that transmissions on a combination of the second set of radio resources and the first set of radio resources does not lead to a periodic repetitive pattern of transmissions from the terminal in the transmission interval.

Claims

1. A method in a wireless communication terminal, the method comprising:

receiving, from a base station, configuration signaling for transmitting on a first set of radio resources;

accessing stored data representative of information, including one or both of periodicities or power levels, that lead to transmissions that cause interference to a companion device communicably coupled to the wireless communication terminal;

determining, based on the accessed data, whether transmitting only on the first set of radio resources leads to a time-domain periodic repetitive pattern of transmissions from the wireless communication terminal in a transmission interval that causes interference to the companion device;

selecting a second set of radio resources for transmitting in the transmission interval such that transmissions on a combination of the second set of radio resources and the first set of radio resources does not lead to the time-domain periodic repetitive pattern of transmissions from the wireless communication terminal in the transmission interval if it is determined that transmitting only on the first set of radio resources leads to the time-domain periodic repetitive pattern of transmissions from the wireless communication terminal; and

transmitting on the first and the second set of radio resources in the transmission interval, wherein transmitting in the second set of resources includes transmitting dummy information that is not intended to be decoded by an entity receiving the dummy information.

2. The method of claim 1:

wherein transmitting in the first set of radio resources includes transmitting control information or data.

3. The method of claim 1 further comprising:

receiving, from a base station, information identifying a candidate set of radio resources; and

selecting the second set of radio resources from the candidate set of radio resources.

4. The method of claim 3 wherein receiving information identifying the candidate set of radio resources includes receiving information identifying a set of frequency domain resource blocks.

5. The method of claim 3 wherein the information identifying the candidate set of radio resources is received by the wireless communication terminal in a system information block transmitted by the base station.

6. The method of claim 3 wherein the information identifying the candidate set of radio resources includes information identifying a semi-persistently scheduled Physical Uplink Shared Channel resource periodically occurring in the transmission interval received from the base station.

7. The method of claim 3 wherein the information identifying the candidate set of radio resources includes a Physical Uplink Control Channel resource index received from the base station.

8. The method of claim 3 wherein selecting the second set of radio resources from the candidate set of radio resources includes selecting the second set of radio resources such that the second set of radio resources have a pseudo-random transmission pattern in the time domain.

9. The method of claim 3 wherein selecting the second set of radio resources from the candidate set of radio resources includes selecting the second set of radio resources such that the second set of radio resources is a subset of the candidate set of radio resources.

10. The method of claim 1:

wherein transmitting in the first set of radio resources includes transmitting within a carrier bandwidth assigned to the wireless communication terminal; and

wherein transmitting in the second set of radio resources includes transmitting outside of the assigned carrier bandwidth.

11. The method of claim 1 further comprising:

detecting the presence of the companion device communicably coupled to the wireless communication terminal; and

transmitting in the second set of radio resources only when the presence of the companion device has been detected.

12. The method of claim 1 further comprising selecting the second set of radio resources such that the second set of radio resources are distinct from the first set of radio resources in time domain.

13. The method of claim 1 wherein the time-domain periodic repetitive pattern of the first set of radio resources has a periodicity rate or a multiple of the periodicity rate in an audible frequency range.

14. The method of claim 13 wherein selecting the second set of radio resources from the candidate set of radio resources includes selecting resources from the candidate set of radio resources to reduce the periodicity rate or the multiple of the periodicity rate in an audible frequency range of a resulting transmitted waveform in the time domain.

15. The method of claim 1 further comprising transmitting, by the wireless communication terminal to the base station, information indicating detection of the companion device before transmitting in the second set of radio resources.