Conditional transmission deferral for dual wireless band coexistence

• US 9,572,175 B2
• Filed: 03/14/2014
• Issued: 02/14/2017
• Est. Priority Date: 03/15/2013
• Status: Active Grant

• Current Assignee: Apple Inc.
• Original Assignee: Apple Inc.
• Inventors: Burchill, William S., Zhao, Wen, Chen, Huanyu, Cheng, Zhaojun, Dou, Weiping
• Primary Examiner(s): Sheikh, Ayaz
• Assistant Examiner(s): Asefa, Debebe
• Application Number:
  US14/212,334
• Publication Number:
  US 20140269562A1
• Time in Patent Office: 1,068 Days
• US Class Current: 1/1
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 72/1215 for collaboration of different radio technologies
• CPC Class Codes: H04W 76/15 Setup of multiple wireless link connections
• 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 wireless communication system is presented for multiple wireless technology coexistence in a mobile device. A method according to this application might include obtaining one or more transmit allocation parameters for a wireless transmission via a first radio technology at a first wireless processor and the preparing to receive wireless data via a second radio technology at a second wireless processor. Next, the exemplary method might request that the wireless transmission be deferred, followed by deciding whether to grant the deferral request based at least on the one or more transmit allocation parameters.

Claims

1. A method, comprising:

determining one or more first transmit allocation parameters, including a first parameter that specifies allocated first frequency resources, for a first scheduled wireless transmission using a first radio technology;

receiving an indication to conditionally defer the first scheduled wireless transmission based on an upcoming reception of wireless data using a second radio technology and second frequency resources; and

determining whether to defer the first scheduled wireless transmission in order to avoid interference with the upcoming reception of wireless data, based on the first one or more transmit allocation parameters, including based on whether there is a threshold difference between the first frequency resources and the second frequency resources.

2. The method of claim 1, further comprising:

determining to defer the first scheduled wireless transmission;

determining one or more second transmit allocation parameters, including a second parameter that specifies allocated second frequency resources, for a second scheduled wireless transmission using the first radio technology;

receiving an indication to conditionally defer the second scheduled wireless transmission based on an upcoming reception of wireless data using the second radio technology; and

determining not to defer the second scheduled wireless transmission, based on the one or more second transmit allocation parameters.

3. The method of claim 1, wherein the one or more transmit allocation parameters further include:

a transmit power for the first scheduled wireless transmission.

4. The method of claim 1, wherein the first radio technology comprises an LTE technology and the wireless transmission comprises an LTE wireless transmission, and wherein the second radio technology comprises a Wi-Fi technology and the wireless data comprises Wi-Fi data.

5. The method of claim 1, wherein the determining whether to defer the first scheduled wireless transmission includes:

determining to defer the first scheduled wireless transmission in response to a number of resource blocks for the first scheduled wireless transmission comparing to a threshold number in a predetermined manner.

6. The method of claim 1, wherein the determining whether to defer the first scheduled wireless transmission includes determining to defer the first scheduled wireless transmission in response a frequency of a resource block for the transmission comparing to a threshold frequency in a predetermined manner.

7. The method of claim 1, wherein the threshold difference is dynamically determined.

8. The method of claim 1, further comprising determining to defer the first scheduled wireless transmission in response to a number of resource blocks for the first scheduled wireless transmission comparing to a threshold number in a predetermined manner, a frequency of a resource block for the first scheduled wireless transmission comparing to a threshold frequency in a predetermined manner, and a transmit power of the first scheduled wireless transmission comparing to a threshold power in a predetermined manner.

9. An apparatus, comprising:

an LTE wireless processor configured to determine one or more LTE transmit allocation parameters for a first scheduled LTE transmission of data;

a Wi-Fi wireless processor configure to prepare to receive Wi-Fi data;

wherein the Wi-Fi wireless processor is further configured to request that the first scheduled LTE transmission be conditionally deferred based an upcoming reception of Wi-Fi data; and

wherein the LTE wireless processor is further configured to determine whether to defer the first scheduled LTE transmission based at least on one or more first LTE transmit allocation parameters associated with the first scheduled LTE transmission, including based on whether there is a threshold difference between first frequency resources assigned for the scheduled LTE transmission and second frequency resources for the upcoming reception of Wi-Fi data.

10. The apparatus of claim 9, wherein the one or more LTE transmit allocation parameters further include:

a transmit power and a number of resource blocks.

11. The apparatus of claim 9, wherein the apparatus is configured to dynamically determine the threshold difference.

12. The apparatus of claim 11, wherein the apparatus is further configured to:

determine to defer the first scheduled LTE transmission based at least in part on the one or more first LTE transmit allocation parameters

determine one or more second transmit allocation parameters, including a second parameter that specifies allocated second frequency resources, associated with a second scheduled LTE transmission;

receive an indication to conditionally defer the second scheduled LTE transmission based on an upcoming reception of Wi-Fi data; and

determine not to defer the second scheduled LTE transmission, based on the one or more second transmit allocation parameters.

13. A non-transitory computer-readable medium having instructions stored thereon that are executable by a computing device to perform operations comprising:

determining one or more first transmit allocation parameters, including a first parameter that specifies allocated first frequency resources, for a first scheduled wireless transmission via a first radio technology;

receiving an indication to conditionally defer the first scheduled wireless transmission based on an upcoming reception of wireless data using a second radio technology; and

determining whether to defer the first scheduled wireless transmission in order to avoid interference with the upcoming reception of wireless data, based at least on the first one or more transmit allocation parameters, including based on whether there is a threshold difference between first frequency resources assigned for the first scheduled wireless transmission and second frequency resources for the upcoming reception of wireless data.

14. The non-transitory computer-readable medium of claim 13, wherein the first radio technology comprises an LTE technology and the first scheduled wireless transmission comprises an LTE wireless transmission.

15. The non-transitory computer-readable medium of claim 13, wherein the one or more first transmit allocation parameters further include:

a transmit power.

16. The non-transitory computer-readable medium of claim 13, wherein the second radio technology comprises a Wi-Fi technology and the wireless data comprises Wi-Fi data.

17. The non-transitory computer-readable medium of claim 13, wherein the determining whether to defer the first scheduled wireless transmission includes determining to defer the first scheduled wireless transmission in response to a number of resource blocks for the first scheduled wireless transmission comparing to a threshold number in a predetermined manner.

18. The non-transitory computer-readable medium of claim 13, wherein the determining whether to defer the first scheduled wireless transmission includes determining to defer the first scheduled wireless transmission in response a frequency of a resource block for the transmission comparing to a threshold frequency in a predetermined manner.

19. The non-transitory computer-readable medium of claim 13, wherein the operations further comprise:

comparing at least one transmit allocation parameter to a limit for the at least one transmit allocation parameter; and

based at least in part on the comparison, deferring the first scheduled wireless transmission.

20. The non-transitory computer-readable medium of claim 19, wherein the operations further comprise:

determining to defer the first scheduled wireless transmission;

determining one or more second transmit allocation parameters, including a second parameter that specifies allocated second frequency resources, for a second scheduled wireless transmission using the first radio technology;

receiving an indication to conditionally defer the second scheduled wireless transmission based on an upcoming reception of wireless data using the second radio technology; and

determining not to defer the second scheduled wireless transmission and performing the second scheduled wireless transmission, based on the one or more second transmit allocation parameters.