# US 11,310,816 B2 · Associating a downlink reference signal for positioning of a user equipment with an uplink reference signal for transmission by the user equipment > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,310,816 B2 - Document ID: US11310816B2 - Status: Granted - Kind: B2 - Application number: 16/439,535 - Filed: 2019-06-12 - Published: 2020-01-16 - Granted: 2022-04-19 - Earliest claimed: 2018-07-10 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Alexandros Manolakos; Sony Akkarakaran; Joseph Binamira Soriaga; Tao Luo; Naga Bhushan - Web page: https://patentgrep.com/patent/US11310816B2 ## CPC - H04L 5/0051: {of dedicated pilots, i.e. pilots destined for a single user or terminal} - H04W 72/1273: of downlink data flows - G01S 5/0236: {Assistance data, e.g. base station almanac} - G01S 5/0249: {Determining position using measurements made by a non-stationary device other than the device whose position is being determined} - 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 4/02: Services making use of location information - H04W 4/029: Location-based management or tracking services - H04W 64/00: Locating users or terminals {or network equipment} for network management purposes, e.g. mobility management - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04W 80/02: Data link layer protocols - H04W 80/10: adapted for {application} session management, e.g. SIP [Session Initiation Protocol] {(connection management H04W76/00; arrangements for session management H04L67/14)} - H04L 5/001: {the frequencies being arranged in component carriers} - H04L 5/0023: {Time-frequency-space} - H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals} - H04L 5/0094: {Indication of how sub-channels of the path are allocated} - 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) - 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 ## Abstract In an embodiment, a network entity schedules, as part of a positioning procedure for a UE, a first set of resources for transmission of DL RS(s) by at least one BS to the UE. The network entity associates the DL RS(s) with UL RS(s) for transmission by the UE on a second set of resources to one or more BSs as part of the positioning procedure for the UE. The network entity transmits, to the UE, an indication of the association between the DL RS(s) and the UL RS(s). The UE receives the indication along with the DL RS(s) from the at least one BS. The UE transmits the UL RS(s) to the one or more BSs on the second set of resources in response to the received indication. ## Claims ### Claim 1 A method of operating a network entity, comprising: scheduling, as part of a positioning procedure for a user equipment (UE), a first set of resources for transmission of at least one downlink (DL) reference signal (RS) by at least one base station to the UE; associating the at least one DL RS with at least one uplink (UL) RS for transmission by the UE on a second set of resources to one or more base stations as part of the positioning procedure for the UE; and transmitting, to the UE, an indication of the association between the at least one DL RS and the at least one UL RS. ### Claim 2 (depends on 1) The method of claim 1, wherein the at least one base station includes a single base station associated with the positioning procedure, or wherein the at least one base station includes multiple base stations associated with the positioning procedure that each transmit one or more DL RSs to be measured by the UE. ### Claim 3 (depends on 1) The method of claim 1, wherein the indication indicates the association without a particular DL RS being specified. ### Claim 4 (depends on 1) The method of claim 1, wherein the indication is contained in a radio resource control (RRC) configuration of the at least one DL RS, or wherein the indication is indicated via a bit in a Downlink Control Information (DCI) field, or wherein the indication is contained in an RRC configuration of the at least one UL RS. ### Claim 5 (depends on 1) The method of claim 1, further comprising: determining a resource mapping rule of the second set of resources; and transmitting the resource mapping rule to the UE. ### Claim 6 (depends on 5) The method of claim 5, wherein the resource mapping rule is transmitted to the UE before the at least one DL RS is transmitted to the UE. ### Claim 7 (depends on 5) The method of claim 5, wherein the resource mapping rule is based on a quasi co-location (QCL) association between the first and second sets of resources. ### Claim 8 (depends on 7) The method of claim 7, wherein the resource mapping rule allocates the second set of resources based on a specified delta in an angle of departure (AoD) according to the QCL association between the first and second sets of resources. ### Claim 9 (depends on 5) The method of claim 5, wherein the resource mapping rule maps the second set of resources onto the same slot as the first set of resources, or wherein the resource mapping rule allocates the second set of resources via a carrier switching procedure irrespective of whether the allocation of the second set of resources is tagged as an antenna-switching use case. ### Claim 10 (depends on 5) The method of claim 5, wherein the resource mapping rule allocates supplemental resources to the second set of resources that are not allocated to one or more other UL RSs that lack an association to a DL RS for positioning. ### Claim 11 (depends on 10) The method of claim 10, wherein the supplemental resources include one or more additional subcarriers via setting a subcarrier skipping pattern so as not to skip any subcarriers in a frequency domain, or wherein the supplemental resources include one or more additional subcarriers via subcarrier hopping, or wherein the supplemental resources include an Angle of Departure (AoD) configuration, or any combination thereof. ### Claim 12 (depends on 1) The method of claim 1, wherein the at least one DL RS includes a plurality of periodically or semi-persistently transmitted DL RSs, or wherein the at least one DL RS includes one or more DL RSs that are transmitted aperiodically. ### Claim 13 (depends on 1) The method of claim 1, wherein the first set of resources includes a first bandwidth part (BWP), and the second set of resources includes the first BWP or a second BWP that is different than the first BWP, or wherein the first set of resources includes a first component carrier (CC), and the second set of resources includes the first CC or a second CC that is different than the first CC, or wherein the first set of resources includes a first frequency range, and the second set of resources includes the first frequency range or a second frequency range that is different than the first frequency range, or wherein the first set of resources includes a first subcarrier spacing (SCS), and the second set of resources includes the first SCS or a second SCS that is different than the first SCS, or wherein the first set of resources includes a first time behavior characteristic, and the second set of resources includes the first time behavior characteristic or a second time behavior characteristic that is different than the first time behavior characteristic, or wherein the first time behavior characteristic corresponds to periodic transmission and the second time behavior characteristic corresponds to aperiodic transmission, or wherein the at least one UL RS corresponds to at least one Sounding Reference Signal (SRS) or at least one DeModulation Reference Signal (DMRS) on a Physical Uplink Shared Channel (PUSCH), or any combination thereof. ### Claim 14 (depends on 1) The method of claim 1, wherein the at least one UL RS is configured for at least one function separate from the positioning procedure. ### Claim 15 (depends on 14) The method of claim 14, wherein the at least one function is a codebook-based function, a non-codebook-based function, an uplink beam management function, or an antenna-switching function. ### Claim 16 A method of operating a user equipment (UE), comprising: receiving, from at least one base station as part of a positioning procedure for the UE, at least one downlink (DL) reference signal (RS) on a first set of resources; receiving, from a network entity, an indication of an association between the at least one DL RS with at least one uplink (UL) RS for transmission by the UE; and transmitting, to one or more base stations in response to the received indication, the at least one UL RS on a second set of resources as part of the positioning procedure for the UE. ### Claim 17 (depends on 16) The method of claim 16, wherein the indication indicates the association without a particular DL RS being specified. ### Claim 18 (depends on 16) The method of claim 16, wherein the indication is contained in a radio resource control (RRC) configuration of the at least one DL RS, or wherein the indication is indicated via a bit in a Downlink Control Information (DCI) field, or wherein the indication is contained in an RRC configuration of the at least one UL RS. ### Claim 19 (depends on 16) The method of claim 16, further comprising: receiving a resource mapping rule before the at least one DL RS is transmitted to the UE. ### Claim 20 (depends on 19) The method of claim 19, wherein the resource mapping rule is based on a quasi co-location (QCL) association between the first and second sets of resources. ### Claim 21 (depends on 20) The method of claim 20, wherein the resource mapping rule allocates the second set of resources based on a specified delta in an angle of departure (AoD) according to the QCL association between the first and second sets of resources. ### Claim 22 (depends on 16) The method of claim 16, wherein the resource mapping rule maps the second set of resources onto the same slot as the first set of resources, or wherein the resource mapping rule allocates the second set of resources via a carrier switching procedure irrespective of whether the allocation of the second set of resources is tagged as an antenna-switching use case. ### Claim 23 (depends on 16) The method of claim 16, wherein the resource mapping rule allocates supplemental resources to the second set of resources that are not allocated to one or more other UL RSs that lack an association to a DL RS for positioning. ### Claim 24 (depends on 23) The method of claim 23, wherein the supplemental resources include one or more additional subcarriers via setting a subcarrier skipping pattern so as not to skip any subcarriers in a frequency domain, or wherein the supplemental resources include one or more additional subcarriers via subcarrier hopping, or wherein the supplemental resources include an Angle of Departure (AoD) configuration, or any combination thereof. ### Claim 25 (depends on 16) The method of claim 16, wherein the at least one DL RS includes a plurality of periodically or semi-persistently transmitted DL RSs, or wherein the at least one DL RS includes one or more DL RSs that are transmitted aperiodically. ### Claim 26 (depends on 16) The method of claim 16, wherein the first set of resources includes a first bandwidth part (BWP), and the second set of resources includes the first BWP or a second BWP that is different than the first BWP, or wherein the first set of resources includes a first component carrier (CC), and the second set of resources includes the first CC or a second CC that is different than the first CC, or wherein the first set of resources includes a first frequency range, and the second set of resources includes the first frequency range or a second frequency range that is different than the first frequency range, or wherein the first set of resources includes a first subcarrier spacing (SCS), and the second set of resources includes the first SCS or a second SCS that is different than the first SCS, or wherein the first set of resources includes a first time behavior characteristic, and the second set of resources includes the first time behavior characteristic or a second time behavior characteristic that is different than the first time behavior characteristic, or wherein the at least one UL RS corresponds to at least one Sounding Reference Signal (SRS) or at least one DeModulation Reference Signal (DMRS) on a Physical Uplink Shared Channel (PUSCH). ### Claim 27 (depends on 16) The method of claim 16, wherein the at least one UL RS is configured for at least one function separate from the positioning procedure. ### Claim 28 (depends on 27) The method of claim 27, wherein the at least one function is a codebook-based function, a non-codebook-based function, an uplink beam management function, or an antenna-switching function. ### Claim 29 A network entity, comprising: a memory; at least one processor coupled to the memory and at least one transceiver and configured to: schedule, as part of a positioning procedure for a user equipment (UE), a first set of resources for transmission of at least one downlink (DL) reference signal (RS) by at least one base station to the UE; associate the at least one DL RS with at least one uplink (UL) RS for transmission by the UE on a second set of resources to one or more base stations as part of the positioning procedure for the UE; and transmit, to the UE, an indication of the association between the at least one DL RS and the at least one UL RS. ### Claim 30 A user equipment (UE), comprising: a memory; at least one processor coupled to the memory and at least one transceiver and configured to: receive, from at least one base station as part of a positioning procedure for the UE, at least one downlink (DL) reference signal (RS) on a first set of resources; receive, from a network entity, an indication of an association between the at least one DL RS with at least one uplink (UL) RS for transmission by the UE; and transmit, to one or more base stations in response to the received indication, the at least one UL RS on a second set of resources as part of the positioning procedure for the UE.