# US 2013/0155971 A1 · Transmitter characteristic representation for television white space > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0155971 A1 - Document ID: US20130155971A1 - Status: Published application - Kind: A1 - Application number: 13/668,074 - Filed: 2012-11-02 - Published: 2013-06-20 - Earliest claimed: 2011-12-20 - Assignees: QUALCOMM Incorporated - Inventors: Stephen J. Shellhammer; Santosh P. Abraham; Vincent K. Jones - Web page: https://patentgrep.com/patent/US20130155971A1 ## CPC - H04W 72/04: Wireless resource allocation - H04W 16/14: Spectrum sharing arrangements {between different networks} - H04W 72/044: based on the type of the allocated resource - H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA - H04W 72/20: Control channels or signalling for resource management - 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 includes sending, from a wireless device, an information element including at least one transmitter characteristic field. The at least one transmitter characteristic field includes information regarding a spectral mask associated with the wireless device and information regarding an antenna gain associated with the wireless device. ## Claims ### Claim 1 A method comprising: sending, from a wireless device, an information element comprising at least one transmitter characteristic field, wherein the at least one transmitter characteristic field includes information regarding a spectral mask associated with the wireless device and information regarding an antenna gain associated with the wireless device. ### Claim 2 (depends on 1) The method of claim 1, wherein the wireless device includes a television band (TVBD) device. ### Claim 3 (depends on 1) The method of claim 1, wherein the information element is usable to determine one or more television white space (TVWS) channels to allocate to the wireless device. ### Claim 4 (depends on 3) The method of claim 3, wherein the one or more TVWS channels are compliant with an Institute of Electrical and Electronics Engineers (IEEE) 802.11af protocol. ### Claim 5 (depends on 1) The method of claim 1, wherein the spectral mask is represented by a set of value pairs, each value pair in the set of value pairs including a frequency value and a spectral mask value. ### Claim 6 (depends on 5) The method of claim 5, wherein the frequency value is measured at 1 kilohertz resolution and the spectral mask value is measured at 0.01 decibel resolution. ### Claim 7 (depends on 6) The method of claim 6, further comprising representing the frequency value as a sixteen bit unsigned integer and representing the spectral mask value as a sixteen bit signed integer. ### Claim 8 (depends on 5) The method of claim 5, wherein the frequency value is measured at 1 kilohertz resolution and the spectral mask value is measured at 1 decibel resolution. ### Claim 9 (depends on 8) The method of claim 8, further comprising representing the frequency value as a sixteen bit unsigned integer and representing the spectral mask value as an eight bit unsigned integer. ### Claim 10 (depends on 9) The method of claim 9, wherein the eight bit unsigned integer represents a negative value of the spectral mask value. ### Claim 11 (depends on 5) The method of claim 5, wherein the spectral mask value is scaled to a maximum value of 0 decibels. ### Claim 12 (depends on 1) The method of claim 1, wherein the information element further comprises an element identification field, a length field, and a control field. ### Claim 13 (depends on 12) The method of claim 12, wherein the control field indicates a format of the at least one transmitter characteristic field, wherein the format includes an interpolation method for the spectral mask, and wherein the interpolation method includes linear interpolation, piecewise constant interpolation, polynomial interpolation, spline interpolation, cosine interpolation, cubic interpolation, Hermite interpolation, wavelet interpolation, or any combination thereof. ### Claim 14 (depends on 1) The method of claim 1, wherein the at least one transmitter characteristic field further includes a length field, a start field, and a stop field. ### Claim 15 (depends on 14) The method of claim 14, wherein the length field is an unsigned eight bit integer indicating a length of the at least one transmission characteristic field. ### Claim 16 (depends on 14) The method of claim 14, wherein the start field indicates a start channel number of a plurality of wireless local area network (WLAN) channels and wherein the stop field indicates a stop channel number of the plurality of WLAN channels. ### Claim 17 (depends on 1) The method of claim 1, wherein the antenna gain is represented as a signed sixteen bit integer indicating a maximum antenna gain of a transmitter of the wireless device and wherein the antenna gain is represented in 0.01 decibel isotropic resolution. ### Claim 18 (depends on 1) The method of claim 1, wherein the wireless device comprises a television band (TVBD) master device and wherein a plurality of TVBD slave devices is in communication with the TVBD master device. ### Claim 19 (depends on 18) The method of claim 18, further comprising: sending, from the TVBD master device, information elements associated with the TVBD master device and the plurality of TVBD slave devices to a television white space (TVWS) database; and receiving, from the TVWS database, an indication of one or more TVWS channels available to the TVBD master device and to the plurality of TVBD slave devices. ### Claim 20 (depends on 19) The method of claim 19, further comprising receiving, from the TVWS database, a maximum transmit power associated with each of a plurality of TVWS channels. ### Claim 21 (depends on 19) The method of claim 19, further comprising sending, from the TVBD master device, the indication of one or more available TVWS channels to the plurality of TVBD slave devices. ### Claim 22 (depends on 1) The method of claim 1, wherein the wireless device comprises a television band (TVBD) slave device and further comprising: sending, from the TVBD slave device, the information element associated with the TVBD slave device to a TVBD master device; and receiving, from the TVBD master device, an indication of one or more television white space (TVWS) channels available to the TVBD slave device for communication. ### Claim 23 A method comprising: receiving, at an electronic device, an information element comprising at least one transmitter characteristic field from a wireless device, wherein the at least one transmitter characteristic field includes information regarding a spectral mask associated with the wireless device and information regarding an antenna gain associated with the wireless device. ### Claim 24 (depends on 23) The method of claim 23, wherein the electronic device is a television band (TVBD) master device in communication with a plurality of TVBD slave devices. ### Claim 25 (depends on 23) The method of claim 23, wherein the electronic device comprises a television white space (TVWS) database. ### Claim 26 (depends on 25) The method of claim 25, further comprising: determining, based on the received information element, one or more TVWS channels available to the wireless device for communication; and sending an indication of the one or more available TVWS channels to the wireless device. ### Claim 27 An apparatus comprising: a processor; and a memory comprising instructions executable by the processor to: initiate sending of an information element comprising at least one transmitter characteristic field, wherein the at least one transmitter characteristic field includes information regarding a spectral mask associated with a wireless device and information regarding an antenna gain associated with the wireless device. ### Claim 28 An apparatus comprising: a processor; and a memory comprising instructions executable by the processor to: detect receipt of an information element comprising at least one transmitter characteristic field from a wireless device, wherein the at least one transmitter characteristic field includes information regarding a spectral mask associated with the wireless device and information regarding an antenna gain associated with the wireless device. ### Claim 29 An apparatus comprising: means for storing an information element comprising at least one transmitter characteristic field, wherein the at least one transmitter characteristic field includes information regarding a spectral mask associated with a wireless device and information regarding an antenna gain associated with the wireless device; and means for sending the information element to an electronic device. ### Claim 30 An apparatus comprising: means for receiving an information element comprising at least one transmitter characteristic field from a wireless device, wherein the at least one transmitter characteristic field includes information regarding a spectral mask associated with the wireless device and information regarding an antenna gain associated with the wireless device; and means for storing the information element. ### Claim 31 A non-transitory computer-readable medium including program code that, when executed by a processor, causes the processor to: initiate sending of an information element comprising at least one transmitter characteristic field, wherein the at least one transmitter characteristic field includes information regarding a spectral mask associated with a wireless device and information regarding an antenna gain associated with the wireless device. ### Claim 32 A non-transitory computer-readable medium including program code that, when executed by a processor, causes the processor to: detect receipt of an information element comprising at least one transmitter characteristic field from a wireless device, wherein the at least one transmitter characteristic field includes information regarding a spectral mask associated with the wireless device and information regarding an antenna gain associated with the wireless device. ### Claim 33 A method comprising: sending, from a wireless device, an information element comprising at least one transmitter characteristic field, wherein the at least one transmitter characteristic field includes information regarding a spectral mask associated with the wireless device, and wherein the spectral mask is represented by a set of value pairs, each value pair in the set of value pairs including a frequency value and a spectral mask value.