# US 12,184,573 B2 · Signal communication method and device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,184,573 B2 - Document ID: US12184573B2 - Status: Granted - Kind: B2 - Application number: 17/640,212 - Filed: 2020-07-24 - Published: 2022-10-06 - Granted: 2024-12-31 - Earliest claimed: 2019-09-29 - Assignees: Datang Mobile Communications Equipment Co., Ltd. - Applicants: Datang Mobile Communications Equipment Co., Ltd. - Inventors: Bin Ren; Hui Li; Deshan Miao; Xiaotao Ren; Ren Da - Web page: https://patentgrep.com/patent/US12184573B2 ## CPC - H04L 5/0037: {Inter-user or inter-terminal allocation} - 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)} - H04L 5/0094: {Indication of how sub-channels of the path are allocated} - H04L 27/2613: {Structure of the reference signals} - H04W 4/023: {using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds} - H04W 4/44: for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H] - H04L 5/0007: {the frequencies being orthogonal, e.g. OFDM(A) or DMT} - H04L 5/0078: {Timing of allocation} - H04W 64/00: Locating users or terminals {or network equipment} for network management purposes, e.g. mobility management - H04W 64/003: {locating network equipment} - H04W 92/18: between terminal devices - 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 The present application discloses a signal transmission method and device that can achieve transmission of sidelink positioning reference signals so as to implement sidelink-based positioning. Embodiments of the present application provide a signal sending method used at a sending end, the method comprising: determining sidelink positioning reference signal (SPRS) resource configuration information of a first terminal on a sidelink; and sending, according to the SPRS resource configuration information, a SPRS to a second terminal via the sidelink, such that the second terminal performs positioning measurement on the basis of the SPRS. ## Claims ### Claim 1 A data transmitting method, comprises: determining a Sidelink Positioning Reference Signal, SPRS, resource configuration information of a first terminal on a Sidelink; transmitting an SPRS to a second terminal through the Sidelink according to the SPRS resource configuration information, wherein the SPRS is used for the second terminal to perform a positioning measurement; wherein the SPRS resource configuration information comprises an SPRS frequency domain structure; wherein the SPRS frequency domain structure comprises: a plurality of continuous REs occupying a full bandwidth, and different SPRS resources being distinguished by a comb pattern of REs at equal interval. ### Claim 2 (depends on 1) The method according to claim 1, wherein the SPRS resource configuration information comprises one or a combination of: an SPRS resource set, SPRS resources, an SPRS time domain structure, or a sequence number of a slot for transmitting the SPRS to the second terminal. ### Claim 3 (depends on 2) The method according to claim 2, wherein the SPRS resource set comprises at least one of following characteristics: the SPRS resource set comprises at least one SPRS resource, and all SPRS resources in the SPRS resource set are associated with an antenna array of a same terminal, or for new radio frequency bands FR1 and FR2, an identifier of each SPRS resource in the SPRS resource set is associated with an antenna array of a terminal, or wherein the SPRS resources comprise at least one of following characteristics: a comb factor Comb-N resource unit pattern of each of the SPRS resources is used to map an SPRS sequence to Resource Element, REs, in frequency domain; the SPRS resource is described by at least one of: an SPRS resource ID, a sequence ID, a Comb-N value, a RE offset, an initial slot index and symbol index of the SPRS resource, a quantity of symbols of each SPRS resource, or a quasi co-location information of Synchronization Block/PBCH, SSB; the quantity of symbols of the SPRS resource is pre-defined by protocol or pre-configured on a network side, or the Comb-N value of the SPRS resource is pre-defined by protocol or pre-configured on a network side. ### Claim 4 (depends on 2) The method according to claim 2, wherein the SPRS time domain structure supports two SPRS time domain structures as follows: a single slot structure: Automatic Gain Control, AGC; SPRS; and Guard Period, GP, are placed in sequence from front to back in each slot; a slot bundling structure: AGC, SPRS and GP are placed in sequence from front to back in a plurality of continuous slots. ### Claim 5 (depends on 4) The method according to claim 4, wherein the slot bundling structure is used by a terminal to transmit an SPRS continuously in a broadcast mode, or wherein in the SPRS time domain structure, a quantity and locations of OFDM symbols occupied by the SPRS in time domain are predefined by protocol or configured on a network side. ### Claim 6 (depends on 1) The method according to claim 1, wherein in the first frequency domain structure, a comb factor in frequency domain is predefined by protocol or configured on a network side, and different SPRS resources are mapped to different transmitting antenna arrays, or wherein the SPRS frequency domain structure supports a fixed RE pattern and a frequency hopping RE pattern. ### Claim 7 (depends on 1) The method according to claim 1, wherein an SPRS frequency domain bandwidth in the SPRS frequency domain structure is pre-defined by protocol or configured on a network side, and a maximum value of the SPRS frequency domain bandwidth is a maximum system bandwidth of the Sidelink. ### Claim 8 (depends on 1) The method according to claim 1, wherein the SPRS resource configuration information is pre-defined by protocol or determined by signaling; wherein the signaling comprises one or a combination of: a broadcast signaling issued from a serving base station, a Downlink Control Information, DCI, signaling, a positioning dedicated signaling defined by Uu protocol of NR wireless air interface, or a positioning dedicated signaling of Proximity Communication Port PC5 protocol. ### Claim 9 (depends on 1) A signal transmitting device, comprises: a memory configured to store program instructions; a processor configured to invoke the program instructions stored in the memory to perform the method of claim 1. ### Claim 10 A signal receiving method, comprises: determining a Sidelink Positioning Reference Signal, SPRS, resource configuration information of a first terminal on a Sidelink, wherein the SPRS resource configuration information is transmitted by a second terminal; receiving an SPRS transmitted by the second terminal through the Sidelink according to the SPRS resource configuration information; wherein the SPRS resource configuration information comprises an SPRS frequency domain structure; wherein the SPRS frequency domain structure comprises: a plurality of continuous REs occupying a full bandwidth, and different SPRS resources being distinguished by a comb pattern of REs at equal interval. ### Claim 11 (depends on 10) The method according to claim 10, further comprises: measuring the SPRS to obtain a positioning measurement value; determining relative distance information from the second terminal to the first terminal according to the positioning measurement value. ### Claim 12 (depends on 10) The method according to claim 10, wherein the SPRS resource configuration information comprises one or a combination of: an SPRS resource set, SPRS resources, an SPRS time domain structure, or a sequence number of a slot for receiving the SPRS transmitted by the second terminal. ### Claim 13 (depends on 12) The method according to claim 12, wherein the SPRS resource set comprises at least one of following characteristics: the SPRS resource set comprises at least one SPRS resource, and all SPRS resources in the SPRS resource set are associated with an antenna array of a same terminal, or for new radio frequency bands FR1 and FR2, an identifier of each SPRS resource in the SPRS resource set is associated with an antenna array of a terminal, or wherein the SPRS resources comprise at least one of following characteristics: a comb factor Comb-N resource unit pattern of each of the SPRS resources is used to map an SPRS sequence to Resource Elements, REs, in frequency domain; the SPRS resource is described by at least one of: an SPRS resource ID, a sequence ID, a Comb-N value, a RE offset, an initial slot index and symbol index of the SPRS resource, a quantity of symbols of each SPRS resource, or a quasi co-location information of Synchronization Block/PBCH, SSB; the quantity of symbols of the SPRS resource is pre-defined by protocol or pre-configured on a network side, or the Comb-N value of the SPRS resource is pre-defined by protocol or pre-configured on a network side. ### Claim 14 (depends on 12) The method according to claim 12, wherein the SPRS time domain structure supports two SPRS time domain structures as follows: a single slot structure: AGC, SPRS and GP are placed in sequence from front to back in each slot; a slot bundling structure: AGC, SPRS and GP are placed in sequence from front to back in a plurality of continuous slots. ### Claim 15 (depends on 14) The method according to claim 14, wherein the slot bundling structure is used by a terminal to transmit an SPRS continuously in a broadcast mode, or in the SPRS time domain structure, a quantity and locations of OFDM symbols occupied by the SPRS in time domain are predefined by protocol or configured on a network side. ### Claim 16 (depends on 10) The method according to claim 10, wherein in the first frequency domain structure, a comb factor in frequency domain is predefined by protocol or configured on a network side, and different SPRS resources are mapped to different transmitting antenna arrays. ### Claim 17 (depends on 10) The method of claim 10, wherein the SPRS frequency domain structure supports a fixed RE pattern and a frequency hopping RE pattern. ### Claim 18 (depends on 10) The method according to claim 10, wherein an SPRS frequency domain bandwidth in the SPRS frequency domain structure is pre-defined by protocol or configured on a network side, and a maximum value of the SPRS frequency domain bandwidth is a maximum system bandwidth of the Sidelink. ### Claim 19 (depends on 10) The method according to claim 10, wherein the SPRS resource configuration information is pre-defined by protocol or determined by signaling; wherein the signaling comprises one or a combination of: a broadcast signaling issued from a serving base station, a Downlink Control Information, DCI, signaling, a positioning dedicated signaling defined by Uu protocol of NR wireless air interface, or a positioning dedicated signaling of Proximity Communication Port PC5 protocol. ### Claim 20 (depends on 10) A signal receiving device, comprises: a memory configured to store program instructions; a processor configured to invoke the program instructions stored in the memory to perform the method of claim 10.