# US 2013/0279727 A1 · Hearing device and a method of selecting an optimal transceiver channel in a wireless network > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0279727 A1 - Document ID: US20130279727A1 - Status: Published application - Kind: A1 - Application number: 13/825,966 - Filed: 2011-10-14 - Published: 2013-10-24 - Earliest claimed: 2010-10-14 - Assignees: GN ReSound A/S - Inventors: Hong Liu; Brian Dam Pedersen - Web page: https://patentgrep.com/patent/US20130279727A1 ## CPC - H04R 25/50: {Customised settings for obtaining desired overall acoustical characteristics} - H04L 1/0033: {arrangements specific to the transmitter} - H04L 43/0823: Errors, e.g. transmission errors - H04R 25/552: {Binaural} - H04R 25/554: {using a wireless connection, e.g. between microphone and amplifier or using Tcoils} - H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA - H04W 72/542: using measured or perceived quality - H04R 2225/51: Aspects of antennas or their circuitry in or for hearing aids - H04R: LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS (producing sounds with frequency not determined by supply frequency G10K) - 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 A method in a wireless network comprising a plurality of frequency channels and a receiving participant, the method includes: receiving data on a first subset of the plurality of frequency channels, wherein the frequency channels in the first subset are utilized at least once; receiving data on a second subset of the plurality of frequency channels; determining packet error rates for the respective frequency channels in the first and the second subsets; and selecting one of the plurality of frequency channel as an optimal frequency channel based on a result from the act of determining. ## Claims ### Claim 1 A method in a wireless network comprising a plurality of frequency channels and a receiving participant, the method comprising: receiving data on a first subset of the plurality of frequency channels, wherein the frequency channels in the first subset are utilized at least once; receiving data on a second subset of the plurality of frequency channels; determining packet error rates for the respective frequency channels in the first and the second subsets; and selecting one of the plurality of frequency channel as an optimal frequency channel based on a result from the act of determining. ### Claim 2 (depends on 1) The method according to claim 1, further comprising determining long term evaluations of the respective frequency channels in the first and second subsets based on the packet error rates for the respective frequency channels in the first and the second subsets, and a first time constant; wherein the one of the plurality of frequency channels is selected as the optimal frequency channel based on the long term evaluations. ### Claim 3 (depends on 1) The method according to claim 1, further comprising: determining long term evaluations of the respective frequency channels in the first and second subsets based on the packet error rates for the respective frequency channels in the first and the second subsets, and a first time constant; and determining short term evaluations of the respective frequency channels in the first and second subsets based on the packet error rates for the respective frequency channels in the first and second subsets, and a second time constant, the second time constant being smaller than the first time constant; wherein the one of the plurality of frequency channels is selected as the optimal frequency channel based on the short term evaluations if the long term evaluations of two or more of the frequency channels have a same evaluation value. ### Claim 4 (depends on 1) The method according to claim 1, further comprising: determining long term evaluations of the respective frequency channels in the first and second subsets based on the packet error rates for the respective frequency channels in the first and the second subsets, and a first time constant; and determining short term evaluations of the respective frequency channels in the first and second subsets based on the packet error rates for the respective frequency channels in the first and second subsets, and a second time constant, the second time constant being smaller than the first time constant; wherein the one of the plurality of frequency channels is selected as the optimal frequency channel based on a random selection from two or more of the frequency channels having the respective short term evaluations that are identical, and the respective long term evaluations that are identical. ### Claim 5 (depends on 1) The method according to claim 1, further comprising determining an environment of the receiving participant based on long term evaluations of some of the plurality of frequency channels, short term evaluations of some of the plurality of frequency channels, or both. ### Claim 6 (depends on 1) The method according to claim 1, further comprising maintaining the selected one of the plurality of frequency channels as the optimal frequency channel if the packet error rate for the selected one of the plurality of frequency channels is below a first threshold value or if the packet error rates for the frequency channels in the second subset are above a second threshold value. ### Claim 7 (depends on 1) The method according to claim 1, further comprising transmitting a countdown value from the receiving participant to a transmitting participant, wherein the countdown value indicates to the receiving and transmitting participants when to switch to the optimal frequency channel. ### Claim 8 (depends on 1) The method according to claim 1, further comprising transmitting high bandwidth data between the receiving participant and a transmitting participant in the second subset of the plurality of frequency channels. ### Claim 9 (depends on 8) The method according to claim 8, wherein the high bandwidth data is configured to carry a real-time audio signal. ### Claim 10 (depends on 1) The method according to claim 1, further comprising transmitting redundant data between the receiving participant and a transmitting participant in the first subset of the plurality of frequency channels. ### Claim 11 (depends on 1) The method according to claim 1, further comprising excluding a certain one of the frequency channels in the first and second subsets as a possible candidate for the optimal frequency channel if the packet error rate for f the certain one of the frequency channels is above a threshold value. ### Claim 12 (depends on 1) The method according to claim 1, wherein the receiving participant is a hearing device. ### Claim 13 (depends on 1) A hearing device comprising a transceiver and a digital signal processor configured to perform the method according to claim 1. ### Claim 14 A method of selecting an optimal frequency channel in a wireless network comprising a plurality of frequency channels and a transmitting participant and a receiving participant, the method comprising: utilizing redundant data to determine which of the plurality of frequency channels is a frequency channel with a lowest packet error rate. ### Claim 15 (depends on 14) A hearing device comprising a transceiver and a digital signal processor configured to perform the method according to claim 14.