LAA/WiFi Coexistence for 5GHz antenna sharing
First Claim
1. An apparatus, comprising:
- a cellular processor configured to conduct wireless communications according to a first radio access technology (RAT) in a first frequency band and in a second frequency band, wherein the first RAT is a cellular RAT, the first frequency band is in an unlicensed spectrum, and the second frequency band is in a licensed spectrum;
a wireless local area network (WLAN) processor configured to conduct wireless communications according to a second RAT in the first frequency band, wherein the second RAT is a wireless local area network (WLAN) RAT; and
one or more internal communication lines connecting the cellular processor and the WLAN processor;
wherein the cellular processor and the WLAN processor are configured to couple to a same antenna for communications in the first frequency band;
wherein the cellular processor is configured to notify the WLAN processor via the one or more internal communication lines when the cellular processor is beginning a scan and when the cellular processor is ending a scan in the first frequency band;
wherein the WLAN processor is configured to determine whether to cancel or defer one or more scheduled transmissions during an interval starting at the beginning of the scan and ending at the end of the scan;
wherein, in response to a determination to perform one or more transmissions during the interval, the WLAN processor is configured to notify the cellular processor that the WLAN processor transmitted during the interval; and
wherein, in response to the notification that the WLAN processor transmitted during the interval, the cellular processor is configured to ignore one or more scan measurements taken during an interval in which the WLAN processor transmitted.
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Accused Products
Abstract
A wireless communication device (UE) includes a cellular processor configured to conduct wireless communications according to a first radio access technology (RAT) in a first frequency band and in a second frequency band, wherein the first RAT is a cellular RAT, the first frequency band is in an unlicensed spectrum, and the second frequency band is in a licensed spectrum. In some embodiments, the apparatus includes a wireless local area network (WLAN) processor configured to conduct wireless communications according to a second RAT in the first frequency band. In some embodiments, the cellular processor and the WLAN processor are configured to couple to a common antenna for communications in the first frequency band. In some embodiments, the cellular processor may notify the WLAN processor when it is scanning and/or when it is assigned secondary component carriers in the first frequency band. In some embodiments, the WLAN processor may notify the cellular processor when it is transmitting. In some embodiments, the WLAN processor and/or the cellular processor may perform one or more actions in response to such notifications to improve coexistence in the first frequency band.
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Citations
17 Claims
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1. An apparatus, comprising:
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a cellular processor configured to conduct wireless communications according to a first radio access technology (RAT) in a first frequency band and in a second frequency band, wherein the first RAT is a cellular RAT, the first frequency band is in an unlicensed spectrum, and the second frequency band is in a licensed spectrum; a wireless local area network (WLAN) processor configured to conduct wireless communications according to a second RAT in the first frequency band, wherein the second RAT is a wireless local area network (WLAN) RAT; and one or more internal communication lines connecting the cellular processor and the WLAN processor; wherein the cellular processor and the WLAN processor are configured to couple to a same antenna for communications in the first frequency band; wherein the cellular processor is configured to notify the WLAN processor via the one or more internal communication lines when the cellular processor is beginning a scan and when the cellular processor is ending a scan in the first frequency band; wherein the WLAN processor is configured to determine whether to cancel or defer one or more scheduled transmissions during an interval starting at the beginning of the scan and ending at the end of the scan; wherein, in response to a determination to perform one or more transmissions during the interval, the WLAN processor is configured to notify the cellular processor that the WLAN processor transmitted during the interval; and wherein, in response to the notification that the WLAN processor transmitted during the interval, the cellular processor is configured to ignore one or more scan measurements taken during an interval in which the WLAN processor transmitted. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method, comprising:
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conducting, by a cellular processor, wireless communications according to a first radio access technology (RAT) in a first frequency band and in a second frequency band, wherein the first RAT is a cellular RAT, the first frequency band is in an unlicensed spectrum, and the second frequency band is in a licensed spectrum; conducting, by a wireless local area network (WLAN) processor, wireless communications according to a second RAT in the first frequency band, wherein the second RAT is a wireless local area network (WLAN) RAT, wherein the communications by the cellular processor and the WLAN processor in the first frequency band use a common antenna; notifying, by the cellular processor, when the cellular processor is beginning a scan and when the cellular processor is ending a scan in the first frequency band; notifying, by the WLAN processor in in response to a determination not to defer one or more transmissions during the scan, the cellular processor that the WLAN processor transmitted during the scan; and discarding, by the cellular processor, one or more scan measurements taken during an interval in which the WLAN processor transmitted. - View Dependent Claims (13)
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14. A non-transitory computer-readable medium having instructions stored thereon that are executable by a computing device to perform operations comprising:
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conducting, by a cellular processor, wireless communications according to a first radio access technology (RAT) in a first frequency band and in a second frequency band, wherein the first RAT is a cellular RAT, the first frequency band is in an unlicensed spectrum, and the second frequency band is in a licensed spectrum; conducting, by a wireless local area network (WLAN) processor, wireless communications according to a second RAT in the first frequency band, wherein the second RAT is a wireless local area network (WLAN) RAT, wherein the communications by the cellular processor and the WLAN processor in the first frequency band use a common antenna; notifying, by the cellular processor, when the cellular processor is beginning a scan and when the cellular processor is ending a scan in the first frequency band; notifying, by the WLAN processor in in response to a determination not to defer one or more transmissions during the scan, the cellular processor that the WLAN processor transmitted during the scan; and discarding, by the cellular processor, one or more scan measurements taken during an interval in which the WLAN processor transmitted. - View Dependent Claims (15, 16, 17)
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Specification