# US 2018/0026670 A1 · Sharing an antenna for wireless communication > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2018/0026670 A1 - Document ID: US20180026670A1 - Status: Published application - Kind: A1 - Application number: 15/606,649 - Filed: 2017-05-26 - Published: 2018-01-25 - Earliest claimed: 2015-07-29 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Sandip HOMCHAUDHURI; Pradeep Kumar YENGANTI; Ashok RANGANATH; Deepak DHAMDHERE; Viral MODI; Hong FAN; Pattabiraman SUBRAMANIAN; Gangadhar BURRA - Web page: https://patentgrep.com/patent/US20180026670A1 ## CPC - H04B 1/401: for selecting or indicating operating mode - H04B 1/406: {with more than one transmission mode, e.g. analog and digital modes} - H04L 5/0041: {Frequency-non-contiguous} - H04L 5/0055: {Physical resource allocation for ACK/NACK (for physical mapping arrangements in ARQ protocols H04L1/1861)} - H04W 72/04: Wireless resource allocation - H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA - H04W 76/38: triggered by timers - H04W 84/12: WLAN [Wireless Local Area Networks] - H04B: TRANSMISSION - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract In a particular aspect, a method includes performing a first communication operation associated with a first frequency band using an antenna of a wireless device. The first communication operation is initiated by first communication circuitry of the wireless device. The first communication circuitry is associated with a first communication protocol. The method further includes, based on a duration of a second communication operation, performing the second communication operation associated with a second frequency band using the antenna of the wireless device. The second communication operation is initiated by second communication circuitry of the wireless device. The second communication circuitry is associated with a second communication protocol that is different than the first communication protocol. The first frequency band at least partially overlaps the second frequency band. ## Claims ### Claim 1 A method of wireless communication, the method comprising: performing a first communication operation associated with a first frequency band using an antenna of a wireless device, wherein the first communication operation is initiated by first communication circuitry of the wireless device, and wherein the first communication circuitry is associated with a first communication protocol; and based on a duration of a second communication operation, performing the second communication operation associated with a second frequency band using the antenna of the wireless device, wherein the second communication operation is initiated by second communication circuitry of the wireless device, wherein the second communication circuitry is associated with a second communication protocol that is different than the first communication protocol, and wherein the first frequency band at least partially overlaps the second frequency band. ### Claim 2 (depends on 1) The method of claim 1, wherein the second communication operation is performed based on the duration being less than or equal to a time period until a next operation at the first communication circuitry. ### Claim 3 (depends on 2) The method of claim 2, wherein the second communication operation is associated with a criticality bit that indicates whether the second communication operation is critical. ### Claim 4 (depends on 3) The method of claim 3, further comprising refraining from performing a third communication operation associated with the second frequency band based on a second criticality bit indicating that the third communication operation is not critical. ### Claim 5 (depends on 2) The method of claim 2, further comprising performing a third communication operation associated with the first frequency band using the antenna based on a second duration of a fourth communication operation associated with the second frequency band being greater than the time period. ### Claim 6 (depends on 5) The method of claim 5, further comprising sending a negative acknowledgement (NACK) from the first communication circuitry to the second communication circuitry based on the second duration being greater than the time period. ### Claim 7 (depends on 2) The method of claim 2, further comprising performing a third communication operation associated with the second frequency band using the antenna based on a criticality bit associated with the third communication operation indicating that the third communication operation is critical and a second duration of the third communication operation being greater than the time period. ### Claim 8 (depends on 1) The method of claim 1, further comprising performing periodic communication operations associated with the second frequency band using the antenna, wherein the periodic communication operations comprise the second communication operation and one or more communication operations. ### Claim 9 (depends on 8) The method of claim 8, wherein the second communication operation and the one or more communication operations have the same duration. ### Claim 10 (depends on 1) The method of claim 1, further comprising causing a switch to couple the second communication circuitry to the antenna prior to performing the second communication operation. ### Claim 11 (depends on 1) The method of claim 1, further comprising disabling data transmission from the first communication circuitry to the antenna during performance of the second communication operation. ### Claim 12 (depends on 1) The method of claim 1, further comprising performing a third communication operation associated with the first frequency band using the antenna after completion of the second communication operation. ### Claim 13 (depends on 1) The method of claim 1, wherein the second frequency band comprises a 5 gigahertz (GHz) channel. ### Claim 14 (depends on 1) The method of claim 1, further comprising performing periodic communication operations associated with the second frequency band using the antenna, wherein the periodic communication operations are performed multiple times, and wherein the periodic communication operations include the second communication operation. ### Claim 15 (depends on 14) The method of claim 14, wherein a criticality bit associated with the periodic communication operation indicates whether the periodic communication operation is critical. ### Claim 16 (depends on 15) The method of claim 15, further comprising performing a third communication operation associated with the first frequency band using the antenna after performance of the second communication operation and prior to performance of another of the periodic communication operations. ### Claim 17 An apparatus comprising: an antenna; first communication circuitry configured to initiate performance of a first communication operation associated with a first frequency band using the antenna, wherein the first communication circuitry is associated with a first communication protocol; and second communication circuitry configured to, based on a duration of a second communication operation, initiate performance of the second communication operation associated with a second frequency band using the antenna, wherein the second communication circuitry is associated with a second communication protocol that is different than the first communication protocol, and wherein the first frequency band at least partially overlaps the second frequency band. ### Claim 18 (depends on 17) The apparatus of claim 17, wherein the first communication circuitry comprises wireless local area network (WLAN) circuitry, and wherein the second communication circuitry comprises long term evolution (LTE) circuitry. ### Claim 19 (depends on 17) The apparatus of claim 17, further comprising an interface configured to enable communications between the first communication circuitry and the second communication circuitry. ### Claim 20 (depends on 19) The apparatus of claim 19, wherein the interface comprises a shared memory interface, a wireless coexistence interface 2 (WCI-2), a general purpose input-output (GPIO) interface, or a bus. ### Claim 21 (depends on 17) The apparatus of claim 17, further comprising a switch configured to selectively couple the antenna to the first communication circuitry or to the second communication circuitry. ### Claim 22 (depends on 21) The apparatus of claim 21, wherein the first communication circuitry is configured to cause the switch to couple the antenna to the second communication circuitry based on the duration being less than or equal to a time period until a next operation at the first communication circuitry. ### Claim 23 (depends on 21) The apparatus of claim 21, wherein the second communication circuitry is configured to cause the switch to couple the antenna to the first communication circuitry responsive to completion of the second communication operation. ### Claim 24 (depends on 17) The apparatus of claim 17, wherein the antenna, the first communication circuitry, and the second communication circuitry are integrated within a mobile communication device. ### Claim 25 An apparatus comprising: means for performing a first communication operation associated with a first frequency band using an antenna, wherein the first communication operation is associated with a first communication protocol; means for determining whether to perform a second communication operation associated with a second frequency band based on a duration of the second communication operation; and means for performing the second communication operation using the antenna, wherein the second communication operation is associated with a second communication protocol that is different than the first communication protocol, and wherein the first frequency band at least partially overlaps the second frequency band. ### Claim 26 (depends on 25) The apparatus of claim 25, wherein the second frequency band comprises a 5 gigahertz (GHz) channel, wherein the second communication protocol includes a wireless local area network (WLAN) protocol, and wherein the first communication protocol includes a long term evolution (LTE)-Unlicensed (LTE-U) protocol that is associated with at least a portion of the 5 GHz channel. ### Claim 27 (depends on 25) The apparatus of claim 25, further comprising means for sharing messages between the means for performing the second communication operation and the means for performing the first communication operation. ### Claim 28 A non-transitory computer-readable medium storing instructions that, when executed by a processor, cause the processor to: initiate performance of a first communication operation associated with a first frequency band using an antenna of a wireless device, wherein the first communication operation is associated with a first communication protocol; and based on a duration of a second communication operation, initiate performance of the second communication operation associated with a second frequency band using the antenna, wherein the second communication operation is associated with a second communication protocol that is different than the first communication protocol, and wherein the first frequency band at least partially overlaps the second frequency band. ### Claim 29 (depends on 28) The non-transitory computer-readable medium of claim 28, wherein the first communication protocol includes a long term evolution (LTE) protocol, and wherein the second communication protocol includes a wireless local area network (WLAN) protocol. ### Claim 30 (depends on 28) The non-transitory computer-readable medium of claim 28, wherein the second communication operation is performed based on the duration being less than or equal to a time period until a next operation associated with the first communication protocol.