# US 2014/0153671 A1 · Method and apparatus for selectively transmitting data using spatial diversity > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0153671 A1 - Document ID: US20140153671A1 - Status: Published application - Kind: A1 - Application number: 13/692,520 - Filed: 2012-12-03 - Published: 2014-06-05 - Earliest claimed: 2012-12-03 - Assignees: Motorola Mobility LLC - Applicants: Motorola Mobility LLC - Inventors: Armin W. Klomsdorf; William P. Alberth, JR. - Web page: https://patentgrep.com/patent/US20140153671A1 ## CPC - H04L 25/02: Details {; arrangements for supplying electrical power along data transmission lines (systems for transmitting signals via power distribution lines H04B3/54)} - H04B 7/0404: the mobile station comprising multiple antennas, e.g. to provide uplink diversity - H04B 7/0689: {using different transmission schemes, at least one of them being a diversity transmission scheme} - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H04B: TRANSMISSION ## Abstract A method, performed in a communication device having multiple transmitters, for selectively transmitting data using spatial diversity, includes determining a type of data to be transmitted, determining whether the type of data meets a data type criteria, which comprises determining whether the data includes priority data, and transmitting the data using spatial diversity when the type of data meets the data type criteria. ## Claims ### Claim 1 A method, performed in a communication device having multiple transmitters, for selectively transmitting data using spatial diversity, the method comprising: determining a type of data to be transmitted; determining whether the type of data meets a data type criteria, which comprises determining whether the data includes priority data; and transmitting the data using spatial diversity when the type of data meets the data type criteria. ### Claim 2 (depends on 1) The method of claim 1, wherein determining whether the data includes priority data comprises determining whether the data includes priority control data, wherein the priority control data is transmitted using spatial diversity ### Claim 3 (depends on 2) The method of claim 2, wherein the priority control data comprises one of an acknowledge, a not-acknowledge or a channel quality indicator message type. ### Claim 4 (depends on 1) The method of claim 1 further comprising: determining whether a diversity transmit criteria is met; and transmitting the data using spatial diversity when the diversity transmit criteria is met and when the type of data meets the data type criteria. ### Claim 5 (depends on 4) The method of claim 4, wherein determining whether the diversity transmit criteria is met comprises at least one of: determining whether the communication device is implementing a timing advance when transmitting; determining whether output power at the communication device exceeds a first threshold; determining whether a sensor indicates an impaired antenna element in the communication device; determining whether a received signal strength indicator value is less than a second threshold; or determining whether a signal to noise ratio value is less than a third threshold. ### Claim 6 (depends on 1) The method of claim 1, wherein transmitting the data using spatial diversity comprises transmitting the data using at least two of the multiple transmitters of the communication device. ### Claim 7 (depends on 6) The method of claim 6, wherein transmitting the data using at least two of the multiple transmitters comprises: creating identical first and second stream streams of the data; designating a first transmitter to transmit the first stream of a channel; and determining when a second transmitter is idle to transmit the second stream over the same channel; and transmitting the first and second streams of the data using the first transmitter and the second transmitter when the second transmitter is idle. ### Claim 8 (depends on 7) The method of claim 7 further comprising requesting an uplink schedule grant when the second transmitter is active. ### Claim 9 (depends on 1) The method of claim 1, wherein determining whether the data includes priority data comprises determining whether the data includes priority payload data, wherein the priority payload data is transmitted using spatial diversity. ### Claim 10 (depends on 9) The method of claim 9, wherein the priority payload data includes priority voice data. ### Claim 11 An electronic device that selectively transmits data using spatial diversity, the electronic device comprising: at least two transmitters; a controller coupled to the at least two transmitters, wherein the controller is configured to: determine a type of data to be transmitted; determine that the type of data is priority data, and, responsively, control the at least two transmitters to transmit the priority data using spatial diversity. ### Claim 12 (depends on 11) The electronic device of claim 11, wherein the controller comprises a baseband processor. ### Claim 13 (depends on 11) The electronic device of claim 11, wherein the electronic device comprises a portable wireless communication device. ### Claim 14 (depends on 11) The electronic device of claim 11, wherein the priority data comprises priority control data comprising one of an acknowledge, not-acknowledge or channel quality indicator message type. ### Claim 15 (depends on 11) The electronic device of claim 11, wherein the priority data comprises priority payload data. ### Claim 16 (depends on 11) The electronic device of claim 11, wherein the controller is configured to control the at least two transmitters to transmit the data when a diversity transmit criteria is met comprising at least one of: when the electronic device is instructed to transmit using a timing advance; when output power at the electronic device exceeds a first threshold; when a sensor indicates an impaired antenna element in the electronic device; when a received signal strength indicator value is less than a second threshold; or when a signal to noise ratio value is less than a third threshold. ### Claim 17 A computer-readable storage element having computer readable code stored thereon for programming a computer to perform a method for selectively transmitting data using spatial diversity, the method comprising: determining whether to transmit the data using spatial diversity based on whether the data includes priority data; and transmitting the data using spatial diversity when the data includes priority data. ### Claim 18 (depends on 17) The computer-readable storage element of claim 17, wherein the data is transmitted using spatial diversity when the data includes priority control data. ### Claim 19 (depends on 17) The computer-readable storage element of claim 17, wherein the data is transmitted using spatial diversity when the data includes priority payload data. ### Claim 20 (depends on 19) The computer-readable storage element of claim 19, wherein the method further comprises: determining whether to transmit the data using spatial diversity based on whether a diversity transmit criteria is met; and transmitting the data using spatial diversity upon determining that the diversity transmit criteria is met, which comprises determining that one of: an electronic device performing the transmitting is using a timing advance; output power at the electronic device exceeds a first threshold; a sensor indicates an impaired antenna element in the electronic device; a received signal strength indicator value is less than a second threshold; or a signal to noise ratio value is less than a third threshold.