# US 9,433,003 B2 · Multi-radio coexistence via timing controls for radios using the same radio access technology > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,433,003 B2 - Document ID: US9433003B2 - Status: Granted - Kind: B2 - Application number: 13/743,260 - Filed: 2013-01-16 - Published: 2013-09-12 - Granted: 2016-08-30 - Earliest claimed: 2012-03-07 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Richard Dominic Wietfeldt; George Chrisikos - Web page: https://patentgrep.com/patent/US9433003B2 ## CPC - H04W 72/541: using the level of interference - H04W 16/14: Spectrum sharing arrangements {between different networks} - H04W 72/542: using measured or perceived quality - H04W 72/1215: {for collaboration of different radio technologies} - H04W 88/04: adapted for relaying to or from another terminal or user - H04W 88/06: adapted for operation in multiple networks {or having at least two operational modes}, e.g. multi-mode terminals - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract A method of wireless communication includes identifying a first radio operating in a first mode and a second radio operating in a second mode defined within one device. The first radio and the second radio operate on a same radio access technology (RAT) and also operate on a same band. The method also includes altering a communication time of the first radio and/or the second radio to reduce interference. ## Claims ### Claim 1 A method of wireless communication, comprising: identifying, at a first wireless device, a first radio operating in a station mode to communicate with a remote access point while a second radio operates in an access point mode to serve as an access point for a second wireless device, the first radio having a first transmit/receive chain and the second radio having a second transmit/receive chain that is different from the first transmit/receive chain such that information from transmissions/receptions of the first radio is different in comparison to information from transmissions/receptions of the second radio, and the first radio and the second radio are operating in different end-to-end communication links; identifying, at the first wireless device, the second radio operating in the access point mode while the first radio operates in the station mode, the first radio and second radio being defined within one device, the first radio and the second radio operating on a same radio access technology (RAT) and also operating on a same band; and altering a communication of the first radio and/or the second radio to reduce interference. ### Claim 2 (depends on 1) The method of claim 1, in which the altering comprises altering communications of the first radio to be non-overlapping in time with communications of the second radio. ### Claim 3 (depends on 1) The method of claim 1, further comprises altering the band of the first radio to be different from the band of the second radio. ### Claim 4 (depends on 1) The method of claim 1, in which the altering comprises altering the communication of a third radio operating on a RAT that is different from the RAT of the first and second radio. ### Claim 5 An apparatus for wireless communications, comprising: means for identifying, at a first wireless device, a first radio operating in a station mode to communicate with a remote access point while a second radio operates in an access point mode to serve as an access point for a second wireless device, the first radio having a first transmit/receive chain and the second radio having a second transmit/receive chain that is different from the first transmit/receive chain such that information from transmissions/receptions of the first radio is different in comparison to information from transmissions/receptions of the second radio, and the first radio and the second radio are operating in different end-to-end communication links; means for identifying, at the first wireless device, the second radio operating in the access point mode while the first radio operates in the station mode, the first radio and second radio being defined within one device, the first radio and the second radio operating on a same radio access technology (RAT) and also operating on a same band; and means for altering a communication of the first radio and/or the second radio to reduce interference. ### Claim 6 (depends on 5) The apparatus of claim 5, in which the means for altering comprises means for altering communications of the first radio to be non-overlapping in time with communications of the second radio. ### Claim 7 (depends on 5) The apparatus of claim 5, further comprises means for altering the band of the first radio to be different from the band of the second radio. ### Claim 8 (depends on 5) The apparatus of claim 5, in which the means for altering comprises means for altering the communication of a third radio operating on a RAT that is different from the RAT of the first and second radio. ### Claim 9 A non-transitory computer-readable medium having program code recorded thereon for wireless communication, the program code comprising: program code to identify, at a first wireless device, a first radio operating in a station mode to communicate with a remote access point while a second radio operates in an access point mode to serve as an access point for a second wireless device, the first radio having a first transmit/receive chain and the second radio having a second transmit/receive chain that is different from the first transmit/receive chain such that information from transmissions/receptions of the first radio is different in comparison to information from transmissions/receptions of the second radio, and the first radio and the second radio are operating in different end-to-end communication links; program code to identify, at the first wireless device, the second radio operating in the access point mode while the first radio operates in the station mode, the first radio and second radio being defined within one device, the first radio and the second radio operating on a same radio access technology (RAT) and also operating on a same band; and program code to alter a communication of the first radio and/or the second radio to reduce interference. ### Claim 10 (depends on 9) The non-transitory computer-readable medium of claim 9, in which the program code to alter further comprises program code to alter communications of the first radio to be non-overlapping in time with communications of the second radio. ### Claim 11 (depends on 9) The non-transitory computer-readable medium of claim 9, further comprises program code to alter the band of the first radio to be different from the band of the second radio. ### Claim 12 (depends on 9) The non-transitory computer-readable medium of claim 9, in which the program code to alter further comprises program code to alter the communication of a third radio operating on a RAT that is different from the RAT of the first and second radio. ### Claim 13 An apparatus for wireless communications, comprising: a memory; and at least one processor coupled to the memory, the at least one processor being configured: to identify, at a first wireless device, a first radio operating in a station mode to communicate with a remote access point while a second radio operates in an access point mode to serve as an access point for a second wireless device, the first radio having a first transmit/receive chain and the second radio having a second transmit/receive chain that is different from the first transmit/receive chain such that information from transmissions/receptions of the first radio is different in comparison to information from transmissions/receptions of the second radio, and the first radio and the second radio are operating in different end-to-end communication links; to identify, at the first wireless device, the second radio operating in the access point mode while the first radio operates in the station mode, the first radio and second radio being defined within one device, the first radio and the second radio operating on a same radio access technology (RAT) and also operating on a same band; and to alter a communication of the first radio and/or the second radio to reduce interference. ### Claim 14 (depends on 13) The apparatus of claim 13, in which the at least one processor is further configured to alter communications of the first radio to be non-overlapping in time with communications of the second radio. ### Claim 15 (depends on 13) The apparatus of claim 13, in which the at least one processor is further configured to alter the band of the first radio to be different from the band of the second radio. ### Claim 16 (depends on 13) The apparatus of claim 13, in which the at least one processor is further configured to alter the communication of a third radio operating on a RAT that is different from the RAT of the first and second radio.