# US 2025/0378293 A1 · Ambient communication devices and methods for use thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2025/0378293 A1 - Document ID: US20250378293A1 - Status: Published application - Kind: A1 - Application number: 19/173,874 - Filed: 2025-04-09 - Published: 2025-12-11 - Earliest claimed: 2024-06-11 - Assignees: Oswego Technologies LLC - Applicants: Oswego Technologies LLC - Inventors: Raziq Yaqub; Kazuki Hayashi; Brian Gordaychik - Web page: https://patentgrep.com/patent/US20250378293A1 ## CPC - G06K 19/0723: {the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs} - G06K 7/0008: {General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer} - G06K 7/10019: {resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers. (collision between the communication channels used by wireless communication devices, where the solution is not particularly adapted for RFIDs or the like, H04W74/08)} - H04L 27/2607: {Cyclic extensions} - G06K: GRAPHICAL DATA READING (image or video recognition or understanding G06V); PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract A method performed by a wireless device in communication with a reader may comprise transmitting an energy parameter, to the reader, using one modulation method of the group consisting of OOK and PSK, transmitting assistance device, to the reader, wherein the transmitted assistance information comprises at least a message size pertaining to the device, transmitting a message, having a cyclic prefix, wherein the message is consistent with the message size, on a bandwidth negotiated between the wireless device and the reader. The wireless device and the reader may be configured to communicate according to at least one application layer identifier having a random portion and a non-random portion, wherein the at least one application layer identifier is configured to be of at least two different lengths, wherein the at least two different lengths include a full length and a partial length. ## Claims ### Claim 1 A method performed by a wireless device in communication with a reader, the method comprising: transmitting an energy parameter, to the reader, using one modulation method of the group consisting of On-Off Keying (OOK) and Phase Shift Keying (PSK); transmitting assistance information, to the reader, wherein the transmitted assistance information comprises at least a message size pertaining to the device, wherein the reader is configured to receive assistance information about the device independently from the device and from another device; and transmitting a message, having a cyclic prefix, wherein the message is consistent with the message size, on a bandwidth negotiated between the wireless device and the reader; wherein the wireless device and the reader are configured to communicate according to at least one application layer identifier having a random portion and a non-random portion, wherein the at least one application layer identifier is configured to be of at least two different lengths, wherein the at least two different lengths include a full length and a partial length. ### Claim 2 (depends on 1) The method of claim 1, wherein communication between the wireless device and the reader occurs on the negotiated bandwidth. ### Claim 3 (depends on 1) The method of claim 1, wherein the selected modulation is one of OOK and PSK, wherein the selected modulation employs at least two tones. ### Claim 4 (depends on 1) The method of claim 1, wherein a CRC length is selected based on information that precedes the CRC, wherein the information that precedes the CRC is of a first length or a second length, wherein the second length is different than the first length. ### Claim 5 (depends on 4) The method of claim 4, wherein a CRC is not employed. ### Claim 6 (depends on 1) The method of claim 1, wherein a midamble sequence is variably employed. ### Claim 7 (depends on 1) The method of claim 1, wherein in a first mode, contention based access is provided between the device and the reader and in a second mode, contention free access is provided between the device and the reader. ### Claim 8 (depends on 7) The method of claim 7, further comprising: detecting, during the contention based mode, that a failure occurred; and processing a trigger based message, wherein the trigger based message indicates backoff. ### Claim 9 (depends on 8) The method of claim 8, further comprising: transmitting a message, by the device, the message transmitted at a time instance consistent with the trigger based message. ### Claim 10 A system comprising: a device; and a reader; wherein the reader is configured to receive an energy parameter, from the device, in a transmission from the device to the reader; wherein the reader is configured to receive assistance information about the device independently from the device and from another device, wherein the assistance information comprises at least a message size of the device; wherein the device and the reader are configured to communicate according to at least one application layer identifier, which is configured to be of at least two different lengths, wherein the at least two different lengths include a full length and a partial length; wherein the application layer identifier has a random portion; wherein a sequence number is not employed; wherein modulation methods include one or both of On-Off Keying (OOK) and Phase Shift Keying (PSK). ### Claim 11 A method performed by a wireless device in communication with a reader, the method comprising: transmitting an energy parameter, to the reader, using one modulation method of the group consisting of On-Off Keying (OOK) and Phase Shift Keying (PSK); transmitting assistance information, to the reader, wherein the assistance information comprises at least a message size pertaining to the device; and transmitting a message, having a cyclic prefix, wherein the message is consistent with the message size, on a bandwidth negotiated between the wireless device and the reader.