# US 2021/0345289 A1 · User equipment positioning estimation in wireless networks with base stations that support multibeam operation > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0345289 A1 - Document ID: US20210345289A1 - Status: Published application - Kind: A1 - Application number: 17/281,092 - Filed: 2019-09-27 - Published: 2021-11-04 - Earliest claimed: 2018-09-27 - Assignees: Sony Group Corporation - Applicants: Sony Corporation - Inventors: Basuki Priyanto; Anders Berggren - Web page: https://patentgrep.com/patent/US20210345289A1 ## CPC - 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}) - G01S 1/0428: {Signal details} - 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 1/44: Rotating or oscillating beam beacons defining directions in the plane of rotation or oscillation - G01S 5/0036: {of measured values, i.e. measurement on mobile and position calculation on base station} - G01S 5/0215: {Interference} - G01S 5/0226: {Transmitters} - H04B 7/0617: {for beam forming} - H04L 5/0035: {Resource allocation in a cooperative multipoint environment} - 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 16/28: using beam steering - H04W 64/006: {with additional information processing, e.g. for direction or speed determination} - G01S 2205/01: specially adapted for specific applications - H04L 5/0023: {Time-frequency-space} - 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 - 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 of operating a base station includes determining a schedule associated with transmission by the base station of a Positioning Reference Signal (PRS) on a plurality of directional beams, the plurality of directional beams having directions corresponding to at least a portion of a plurality of configurable beam directions, the schedule being based on a coordination of the PRS transmission by the base station with PRS transmission on directional beams from at least one other base station; and transmitting the PRS on each of the plurality of directional beams based on the determined schedule. ## Claims ### Claim at position 1 1-31. (canceled) ### Claim 32 A method of operating a base station, comprising: determining a schedule associated with transmission by the base station of a Positioning Reference Signal (PRS) on a plurality of directional beams, the plurality of directional beams having directions corresponding to at least a portion of a plurality of configurable beam directions, the schedule being based on a coordination of the PRS transmission by the base station with PRS transmission on directional beams from at least one other base station; and transmitting the PRS on each of the plurality of directional beams based on the determined schedule. ### Claim 33 (depends on 32) The method of claim 32, wherein the base station is a first base station, wherein the at least one other base station comprises a second base station, and wherein the schedule for the transmission of the PRS on each of the plurality of directional beams is determined by coordinating the PRS transmissions from the first base station with PRS transmissions scheduled to be transmitted on directional beams from the second base station such that the PRS transmissions from the first base station and the PRS transmissions from the second base station occur within a predetermined time period. ### Claim 34 (depends on 33) The method of claim 33, wherein the schedule for the transmission of the PRS on each of the plurality of directional beams is determined such that the PRS transmissions transmitted from the first base station are coordinated with the PRS transmissions scheduled to be transmitted on the directional beams from the second base station in a defined geographic region. ### Claim 35 (depends on 33) The method of claim 33, wherein the schedule for the transmission of the PRS on each of the plurality of directional beams is determined such that the PRS transmissions transmitted from the first base station are coordinated with the PRS transmissions scheduled to be transmitted on the directional beams from the second base station based on reducing interference between the PRS transmissions transmitted from the first base station and PRS transmissions transmitted from the second base station through multiplexing of first resources associated with the PRS transmissions transmitted from the first base station and second resources associated with PRS transmissions transmitted from the second base station; wherein the first resources comprise first sub-frequencies and first time segments and the second resources comprise second sub-frequencies and second time segments; and wherein a length of the predetermined time period is based on a movement characteristic of a User Equipment (UE) within the defined geographic region. ### Claim 36 (depends on 32) The method of claim 32, wherein determining the schedule for the transmission of the PRS on each of the plurality of directional beams comprises: generating the schedule for the transmission of the PRS on each of the plurality of directional beams so as to complete the transmission of the PRS on each of the plurality of beams within a PRS burst interval wherein the PRS burst interval is a first one of a plurality of PRS burst intervals, the method further comprising: generating the schedule for the transmission of the PRS on each of the plurality of directional beams so as to complete the transmission of the PRS on each of the plurality of beams within each of the plurality PRS burst intervals. ### Claim 37 (depends on 32) The method of claim 32, further comprising: assigning beam index identifications to the plurality of directional beams, respectively; and communicating the schedule, a number of the at least the portion of a plurality of configurable beam directions, a number of the plurality of configurable beam directions, the beam index identifications, bandwidths of the plurality of directional beams, respectively, or time domain characteristics of the plurality of directional beams, respectively, to a positioning node wherein the schedule is based on the beam index identifications. ### Claim 38 (depends on 37) The method of claim 37, wherein communicating the schedule, the number of the at least the portion of a plurality of configurable beam directions, the number of the plurality of configurable beam directions, the beam index identifications, the bandwidths of the plurality of directional beams, respectively, or the time domain characteristics of the plurality of directional beams, respectively, to the positioning node is performed following transmission of a Synchronization Signal Block (SSB). ### Claim 39 (depends on 32) The method of claim 32, wherein the schedule is a resource allocation schedule that identifies time segments and sub-frequencies used for transmission by the base station of the PRS on the plurality of directional beams; the method further comprising: assigning beam index identifications to the plurality of directional beams, respectively, the beam index identifications corresponding to pairs of time segment and sub-frequency identifications, respectively; wherein the resource allocation schedule is based on the beam index identifications. ### Claim 40 A method of operating a User Equipment (UE), comprising: receiving from a positioning node, for each of a first base station and a second base station, information associated with transmission of a Positioning Reference Signal (PRS) on a plurality of directional beams, the information comprising a schedule that is based on a coordination of the PRS transmissions on the plurality of directional beams by the first base station and the second base station, and the plurality of directional beams having directions corresponding to at least a portion of a plurality of configurable beam directions, respectively; and receiving a first PRS signal on a first one of the plurality of directional beams from the first base station and a second PRS signal from a second one of the plurality of directional beams second base station based on the schedule, which is based on the coordination of the PRS transmissions. ### Claim 41 (depends on 40) The method of claim 40, further comprising: performing Observed Time Difference of Arrival (OTDOA) measurements based on the first PRS signal, the second PRS signal, and a third PRS signal received from a third base station; and communicating Reference Signal Time Different Measurement (RSTD) information based on the OTDOA measurements. ### Claim 42 (depends on 40) The method of claim 40, wherein the information associated with transmission by the first base station of the PRS signal on the plurality of directional beams comprises a number of the at least the portion of a plurality of configurable beam directions, a number of the plurality of configurable beam directions, beam index identifications assigned to ones of the plurality of directional beams, respectively, bandwidths of the plurality of directional beams, respectively, or time domain characteristics of the plurality of directional beams, respectively. ### Claim 43 (depends on 40) The method of claim 40, further comprising: communicating, to a positioning node, a beam index identification assigned to the one of the plurality of directional beams on which the first PRS signal is received, an Angle of Arrival (AoA) associated with the one of the plurality of directional beams on which the first PRS signal is received, or an Angle of Departure (AoD) associated with the one of the plurality of directional beams on which the first PRS signal is received; wherein the schedule is a resource allocation schedule that identifies time segments and sub-frequencies used for PRS transmissions by the first base station and the second base station on the plurality of directional beams; and wherein the beam index identifications correspond to pairs of the time segment and the sub-frequency identifications, respectively. ### Claim 44 A method of operating a positioning node, comprising: receiving from each of a plurality of base stations information comprising a plurality of configurable beam directions suitable for Positioning Reference Signal (PRS) transmissions; communicating, for each of the plurality of base stations, a schedule associated with transmissions by the respective base station of a PRS on the plurality of directional beams to a User Equipment (UE), the schedule being based on a coordination of the PRS transmissions on the plurality of directional beams by the plurality of base stations; and receiving from the UE Reference Signal Time Different Measurement (RSTD) information based on a first PRS signal transmitted by a first one of the plurality of base stations, a second PRS signal transmitted by a second one of the plurality of base stations, and a third PRS signal transmitted by a third one of the plurality of base stations. ### Claim 45 (depends on 44) The method of claim 44, further comprising: communicating, by the positioning node, the schedule to the plurality of base stations, prior to communication of the schedule to the UE, wherein the schedule is generated by the positioning node based on the information received from the plurality of base stations, and wherein the plurality of directional beams have directions corresponding to at least a portion of a plurality of configurable beam directions. ### Claim 46 (depends on 44) The method of claim 44, wherein the received information further comprises: a number of the at least the portion of a plurality of configurable beam directions, a number of the plurality of configurable beam directions, beam index identifications assigned to ones of the plurality of directional beams, respectively, bandwidths of the plurality of directional beams, respectively, or time domain characteristics of the plurality of directional beams, respectively. ### Claim 47 (depends on 44) The method of claim 44, further comprising: receiving, from the UE, for each of the first, second, and third ones of the plurality of base stations: a beam index identification assigned to the one of the plurality of directional beams on which the PRS signal is transmitted, an Angle of Arrival (AoA) associated with the one of the plurality of directional beams on which the PRS signal is transmitted, or an Angle of Departure (AoD) associated with the one of the plurality of directional beams on which the PRS signal is transmitted. ### Claim 48 (depends on 47) The method of claim 47, further comprising: determining an Observed Time Difference of Arrival (OTDOA) position for the UE based on the RSTD information, the respective beam index identifications, the respective AoAs, or the respective AoDs. ### Claim 49 (depends on 44) The method of any of claim 44, wherein the schedule is determined such that transmissions of the PRS on the plurality of directional beams by respective ones of the plurality of base stations are coordinated between the respective ones of the plurality of base stations so as to occur within a predetermined time period. ### Claim 50 (depends on 44) The method of claim 44, wherein the schedule is determined such that transmissions of the PRS on the plurality of directional beams by respective ones of the plurality of base stations are coordinated between the respective ones of the plurality of base stations in a defined geographic region. ### Claim 51 (depends on 44) The method of claim 44, wherein the schedule is determined such that transmissions of the PRS on the plurality of directional beams by respective ones of the plurality of base stations are coordinated between the respective ones of the plurality of base stations based on, for each of the plurality of base stations, reducing interference between the transmissions of the PRS on the plurality of directional beams by the respective one of the plurality of base stations and transmissions on another respective one of the plurality of base stations through multiplexing of first resources associated with the PRS transmissions transmitted from the respective one of the plurality of base stations and second resources associated with the PRS transmissions transmitted from the other respective one of the plurality of base stations; wherein the schedule is a resource allocation schedule that identifies time segments and sub-frequencies used for transmission by the respective base stations of the PRS on the plurality of directional beams; and wherein the beam index identifications correspond to pairs of the time segment and the sub-frequency identifications, respectively.