# US 10,768,268 B2 · Apparatus and method for determining properties of channel > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,768,268 B2 - Document ID: US10768268B2 - Status: Granted - Kind: B2 - Application number: 15/412,736 - Filed: 2017-01-23 - Published: 2017-07-27 - Granted: 2020-09-08 - Earliest claimed: 2016-01-25 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Sangkyu Baek; Youngbin Chang - Web page: https://patentgrep.com/patent/US10768268B2 ## CPC - G01S 5/0273: {using multipath or indirect path propagation signals in position determination} - H04B 17/27: for locating or positioning the transmitter - G01S: RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES - H04B: TRANSMISSION ## Abstract The present disclosure relates to a fifth-generation (5G) or pre-5G communication system to support a higher data transmission rate, following a fourth-generation (4G) communication system including long term evolution (LTE). A method for operating an electronic device is provided. The method includes determining the properties of a first signal and a second signal that are transmitted through different frequency bands and performing line-of-sight (LoS) determination based on the determined properties of the first signal and the second signal. ## Claims ### Claim 1 A method for operating a first electronic device, the method comprising: receiving, by the first electronic device, a message including information, from a second electronic device; determining, by the first electronic device, properties of a first signal and a second signal that are received through different frequency bands from the second electronic device based on the information; and performing, by the first electronic device, line-of-sight (LoS) determination by comparing the properties of the first signal and the second signal, wherein the information includes at least one parameter for a transmission power of the first signal and a transmission power of the second signal, and wherein the at least one parameter is used by the first electronic device for determining the properties of the first signal and the second signal. ### Claim 2 (depends on 1) The method of claim 1, wherein the determining of the properties of the first signal and the second signal comprises measuring the properties of the first signal and the second signal. ### Claim 3 (depends on 1) The method of claim 1, wherein the properties of the first signal and the second signal comprise at least one of strengths, transmission times, transmission distances, or transmission directions of the first signal and the second signal. ### Claim 4 (depends on 1) The method of claim 1, wherein the performing of the LoS determination based on the properties comprises: determining strength of the first signal and strength of the second signal; and comparing the strength of the first signal with the strength of the second signal to perform the LoS determination. ### Claim 5 (depends on 1) The method of claim 1, wherein the performing of the LoS determination based on the properties comprises: determining transmission time of the first signal and transmission time of the second signal; and comparing the transmission time of the first signal with the transmission time of the second signal to perform the LoS determination. ### Claim 6 (depends on 1) The method of claim 1, wherein the performing of the LoS determination based on the properties comprises: determining transmission distance of the first signal and transmission distance of the second signal based on transmission time; and comparing the transmission distance of the first signal and the transmission distance of the second signal, which are determined based on the transmission time, to perform the LoS determination. ### Claim 7 (depends on 6) The method of claim 6, further comprising: determining transmission distance of the first signal and transmission distance of the second signal based on signal strength; and comparing the transmission distance of the first signal or the transmission distance of the second signal, which is determined based on the transmission time, with the transmission distance of the first signal or the transmission distance of the second signal, which is determined based on the signal strength, to perform the LoS determination. ### Claim 8 (depends on 1) The method of claim 1, wherein the performing of the LoS determination based on the properties comprises: determining an optimal beam direction of the first signal and an optimal beam direction of the second signal; and comparing the optimal beam direction of the first signal with the optimal beam direction of the second signal to perform the LoS determination. ### Claim 9 (depends on 1) The method of claim 1, wherein the performing of the LoS determination comprises: identifying a transmission time and power of the first signal and a transmission time and power of the second signal; identifying transmission distance of the first signal and the second signal based on the identified transmission time and power of the first signal and the second signal; and comparing the transmission distance of first signal and the second signal. ### Claim 10 A first electronic device comprising: a wireless communication transceiver; and at least one processor configured to: control the wireless communication transceiver to receive a message including information from a second electronic device, determine properties of a first signal and a second signal that are received through different frequency bands from the second electronic device based on the information, and perform line-of-sight (LoS) determination by comparing the properties of the first signal and the second signal, wherein the information includes at least one parameter for a transmission power of the first signal and a transmission power of the second signal, and wherein the at least one parameter is used by the first electronic device for determining the properties of the first signal and the second signal. ### Claim 11 (depends on 10) The first electronic device of claim 10, wherein the at least one processor is further configured to measure the properties of the first signal and the second signal. ### Claim 12 (depends on 10) The first electronic device of claim 10, wherein the properties of the first signal and the second signal comprise at least one of strengths, transmission times, transmission distances, or transmission directions of the first signal and the second signal. ### Claim 13 (depends on 10) The first electronic device of claim 10, wherein the at least one processor is further configured to: determine strength of the first signal and strength of the second signal, and compare the strength of the first signal with the strength of the second signal to perform the LoS determination. ### Claim 14 (depends on 10) The first electronic device of claim 10, wherein the at least one processor is further configured to: determine transmission time of the first signal and transmission time of the second signal, and compare the transmission time of the first signal with the transmission time of the second signal to perform the LoS determination. ### Claim 15 (depends on 10) The first electronic device of claim 10, wherein the at least one processor is further configured to: determine transmission distance of the first signal and transmission distance of the second signal based on transmission time, and compare the transmission distance of the first signal with the transmission distance of the second signal to perform the LoS determination. ### Claim 16 (depends on 15) The first electronic device of claim 15, wherein the at least one processor is further configured to: determine transmission distance of the first signal and transmission distance of the second signal based on signal strength, and compare the transmission distance of the first signal or the transmission distance of the second signal, which is determined based on the transmission time, with the transmission distance of the first signal or the transmission distance of the second signal, which is determined based on the signal strength, to perform the LoS determination. ### Claim 17 (depends on 10) The first electronic device of claim 10, wherein the at least one processor is further configured to: determine an optimal beam direction of the first signal and an optimal beam direction of the second signal, and compare the optimal beam direction of the first signal with the optimal beam direction of the second signal to perform the LoS determination.