Facilitating in-device coexistence between wireless communication technologies

• US 10,700,724 B2
• Filed: 02/11/2019
• Issued: 06/30/2020
• Est. Priority Date: 02/25/2013
• Status: Active Grant

• Current Assignee: Apple Inc.
• Original Assignee: Apple Inc.
• Inventors: Zhao, Wen, Flynn, Paul V., Burchill, William S., Majjigi, Vinay R., Wang, Xiaowen, Mujtaba, Syed A., Song, Kee-Bong
• Primary Examiner(s): Tran, Tuan A
• Application Number:
  US16/272,622
• Publication Number:
  US 20190312606A1
• Time in Patent Office: 505 Days
• Field of Search: None
• CPC Class Codes: H04B 1/1081 Reduction of multipath noise by equalising H04B7/005
• CPC Class Codes: H04B 17/29 Performance testing
• CPC Class Codes: H04L 47/24 Traffic characterised by specific attributes, e.g. priority or QoS
• CPC Class Codes: H04L 47/25 with rate being modified by the source upon detecting a change of network conditions
• CPC Class Codes: H04L 47/41 by acting on aggregated flows or links
• CPC Class Codes: H04W 28/0236 radio quality, e.g. interference, losses or delay
• CPC Class Codes: H04W 52/243 taking into account interferences
• CPC Class Codes: H04W 52/265 taking into account the quality of service QoS
• CPC Class Codes: H04W 52/267 taking into account the information rate
• CPC Class Codes: H04W 52/36 with a discrete range or set of values, e.g. step size, ramping or offsets
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 8/04 Registration at HLR or HSS [Home Subscriber Server]
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Abstract

A method for facilitating in-device coexistence between wireless communication technologies on a wireless communication device is provided. The method can include transmitting data traffic from the wireless communication device via an aggressor wireless communication technology; determining occurrence of an in-device interference condition resulting from transmission of the data traffic via the aggressor wireless communication technology interfering with concurrent data reception by the wireless communication device via a victim wireless communication technology; and reducing a bit rate of the data traffic transmitted via the aggressor wireless communication technology in response to the in-device interference condition.

Claims

1. A wireless device comprising:

a first wireless interface;

a second wireless interface; and

processing circuitry communicatively coupled to the first and second wireless interfaces and configured to cause the wireless device to;

transmit, via the first wireless interface, first data traffic encoded using a first codec;

detect an in-device interference condition impacting reception via the second wireless interface; and

switch to using a second codec to encode subsequent data traffic transmitted via the first wireless interface in response to the in-device interference condition,

wherein the second codec encodes data traffic at a lower bit rate than the first codec.

2. The wireless device of claim 1, wherein the processing circuitry is further configured to cause the wireless device to:

determine whether the in-device interference condition persists while using the second codec; and

switch to using a third codec having a lower bit rate than the second codec in response to determining that the in-device interference condition persists.

3. The wireless device of claim 1, wherein the processing circuitry is further configured to cause the wireless device to:

switch to using, in response to determining that the in-device interference condition persists, progressively lower bit rate codecs that respectively satisfy a minimum bit rate to encode data traffic transmitted via the first wireless interface.

4. The wireless device of claim 3, wherein the minimum bit rate guarantees a threshold quality of service (QoS) level for data transmitted via the first wireless interface.

5. The wireless device of claim 1, wherein the processing circuitry is further configured to cause the wireless device to:

subsequent to switching to using the second codec, switch to using progressively higher bit rate codecs for encoding data traffic transmitted via the first wireless interface until the in-device interference condition reoccurs; and

switch to using, for encoding data traffic, a highest bit rate codec for which the in-device interference condition does not occur.

6. The wireless device of claim 1, wherein the processing circuitry is further configured to cause the wireless device to:

transmit second data traffic via the first wireless interface in conjunction with the first data traffic,

wherein a data rate of the second data traffic remains unaltered in response to the in-device interference condition.

7. The wireless device of claim 6, wherein the second data traffic has a higher priority classification than the first data traffic.

8. An apparatus configurable for operation in a wireless device, the apparatus comprising processing circuitry configured to cause the wireless device to:

transmit, via a first wireless interface, first data traffic encoded using a first codec;

detect an in-device interference condition impacting reception via the second wireless interface; and

switch to using a second codec to encode subsequent data traffic transmitted via the first wireless interface in response to the in-device interference condition,

wherein the second codec encodes data traffic at a lower bit rate than the first codec.

9. The apparatus of claim 8, wherein the processing circuitry is further configured to cause the wireless device to:

determine whether the in-device interference condition persists while using the second codec; and

switch to using a third codec having a lower bit rate than the second codec in response to determining that the in-device interference condition persists.

10. The apparatus of claim 8, wherein the processing circuitry is further configured to cause the wireless device to:

switch to using, in response to determining that the in-device interference condition persists, progressively lower bit rate codecs that respectively satisfy a minimum bit rate to encode data traffic transmitted via the first wireless interface.

11. The apparatus of claim 10, wherein the minimum bit rate guarantees a threshold quality of service (QoS) level for data traffic transmitted via the first wireless interface.

12. The apparatus of claim 8, wherein the processing circuitry is further configured to cause the wireless device to:

subsequent to switching to using the second codec, switch to using progressively higher bit rate codecs for encoding data traffic transmitted via the first wireless interface until the in-device interference condition reoccurs; and

switch to using, for encoding data traffic, a highest bit rate codec for which the in-device interference condition does not occur.

13. The apparatus of claim 8, wherein the processing circuitry is further configured to cause the wireless device to:

transmit second data traffic via the first wireless interface in conjunction with the first data traffic,

wherein a data rate of the second data traffic remains unaltered in response to the in-device interference condition.

14. The apparatus of claim 13, wherein the second data traffic has a higher priority classification than the first data traffic.

15. A method performed by a wireless device comprising a first wireless interface and a second wireless interface, the method comprising:

transmitting, via the first wireless interface, first data traffic encoded using a first codec;

detecting an in-device interference condition impacting reception via the second wireless interface; and

switching to using a second codec to encode subsequent data traffic transmitted via the first wireless interface in response to the in-device interference condition,

wherein the second codec encodes data traffic at a lower bit rate than the first codec.

16. The method of claim 15, further comprising:

determining whether the in-device interference condition persists while using the second codec; and

switching to using a third codec having a lower bit rate than the second codec in response to determining that the in-device interference condition persists.

17. The method of claim 15, further comprising:

switching to using, in response to determining that the in-device interference condition persists, progressively lower bit rate codecs that respectively satisfy a minimum bit rate to encode data traffic transmitted via the first wireless interface.

18. The method of claim 17, wherein the minimum bit rate guarantees a threshold quality of service (QoS) level for data traffic transmitted via the first wireless interface.

19. The method of claim 15, further comprising:

subsequent to switching to using the second codec, switching to using progressively higher bit rate codecs for encoding data traffic transmitted via the first wireless interface until the in-device interference condition reoccurs; and

switching to using, for encoding data traffic, a highest bit rate codec for which the in-device interference condition does not occur.

20. The method of claim 15, further comprising:

transmitting second data traffic via the first wireless interface in conjunction with the first data traffic,

wherein;

a data rate of the second data traffic remains unaltered in response to the in-device interference condition, and

the second data traffic has a higher priority classification than the first data traffic.