# US 10,310,051 B2 · Method for receiving reference signal in wireless communication system and apparatus therefor > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,310,051 B2 - Document ID: US10310051B2 - Status: Granted - Kind: B2 - Application number: 15/129,182 - Filed: 2015-06-30 - Published: 2018-06-28 - Granted: 2019-06-04 - Earliest claimed: 2014-07-04 - Assignees: LG Electronics Inc. - Applicants: LG Electronics Inc. - Inventors: Kijun Kim; Hanbyul Seo; Jonghyun Park - Web page: https://patentgrep.com/patent/US10310051B2 ## CPC - G01S 5/0226: {Transmitters} - G01S 1/04: Details - G01S 1/042: {Transmitters} - G01S 1/20: using a comparison of transit time of synchronised signals transmitted from non-directional antennas or antenna systems spaced apart, i.e. path-difference systems - G01S 5/0221: {Receivers} - G01S 5/0236: {Assistance data, e.g. base station almanac} - G01S 5/0244: {Accuracy or reliability of position solution or of measurements contributing thereto} - G01S 5/10: Position of receiver fixed by co-ordinating a plurality of position lines defined by path-difference measurements {, e.g. omega or decca systems}(G01S5/12 takes precedence {; beacons and receivers cooperating therewith G01S1/306, G01S1/308}) - H04L 5/0048: {Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091)} - H04W 64/00: Locating users or terminals {or network equipment} for network management purposes, e.g. mobility management - 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 - 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 for receiving a reference signal for defining a location in a wireless communication system according to one embodiment of the present invention comprises the steps of: receiving, from a serving cell, beacon-positioning reference signal (B-PRS) configuration information transmitted by at least one beacon device; and detecting the B-PRS by using the B-PRS configuration information, wherein the B-PRS configuration information includes B-PRS group configuration information for at least one beacon device group, and the B-PRS group configuration information can include parameters for generating sequences of the B-PRS transmitted by each beacon device belonging to the corresponding group. ## Claims ### Claim 1 A method for receiving beacon-positioning reference signals (B-PRSs) for determining position in a wireless communication system, by a terminal, the method comprising: receiving, from a serving cell, B-PRS configuration information transmitted by one or more beacon apparatuses; detecting B-PRSs based on the B-PRS configuration information; and measuring, by the terminal, reference signal received power (RSRP) for the B-PRSs based on the B-PRS configuration information, wherein the B-PRS configuration information comprises B-PRS group configuration information about one or more beacon apparatus groups, and measurement information, and wherein the B-PRS group configuration information comprises a parameter for generating a sequence of B-PRSs, transmitted by each beacon apparatus belonging to a corresponding one of the one or more beacon apparatus groups. ### Claim 2 (depends on 1) The method according to claim 1, wherein the parameter indicates a subframe used for each of the beacon apparatuses to transmit a B-PRS. ### Claim 3 (depends on 1) The method according to claim 1, wherein the parameter indicates a frequency shift value used for resource mapping allowing each of the beacon apparatuses to transmit a B-PRS. ### Claim 4 (depends on 1) The method according to claim 1, wherein the parameter indicates an offset value to determine a subframe used for each of the beacon apparatuses to transmit a B-PRS. ### Claim 5 (depends on 1) The method according to claim 1, wherein the parameter indicates a resource block used for each of the beacon apparatuses to transmit a B-PRS. ### Claim 6 (depends on 1) The method according to claim 1, wherein when the RSRP is measured, calculating a path loss value for the B-PRSs based on the RSRP; and triggering a specific event when the calculated path loss value is less than or equal to a threshold. ### Claim 7 A terminal configured to receive beacon-positioning reference signals (B-PRSs) for determining position in a wireless communication system, the terminal comprising: a receiver and transmitter; and a processor, operatively coupled to the receiver and transmitter, wherein the processor is configured to: control the receiver to receive, from a serving cell, B-PRS configuration information transmitted by one or more beacon apparatuses, detect B-PRSs based on the B-PRS configuration information; and measure reference signal received power (RSRP) for the B-PRSs based on the B-PRS configuration information, wherein the B-PRS configuration information comprises B-PRS group configuration information, about one or more beacon apparatus groups, and measurement information, and wherein the B-PRS group configuration information comprises a parameter, for generating a sequence of B-PRSs transmitted by each beacon apparatus belonging to a corresponding one of the one or more beacon apparatus groups. ### Claim 8 (depends on 7) The terminal according to claim 7, wherein the parameter indicates a subframe used for each of the beacon apparatuses to transmit a B-PRS. ### Claim 9 (depends on 7) The terminal according to claim 7, wherein the parameter indicates a frequency shift value used for resource mapping allowing each of the beacon apparatuses to transmit a B-PRS. ### Claim 10 (depends on 7) The terminal according to claim 7, wherein the parameter indicates an offset value to determine a subframe used for each of the beacon apparatuses to transmit a B-PRS. ### Claim 11 (depends on 7) The terminal according to claim 7, wherein the parameter indicates a resource block used for each of the beacon apparatuses to transmit a B-PRS. ### Claim 12 (depends on 7) The terminal according to claim 7, wherein the processor is further configured to: calculate a path loss value for the B-PRSs based on the RSRP, when the RSRP is measured; and trigger a specific event when the calculated path loss value is less than or equal to a threshold.