# US 12,191,903 B2 · Ultra-wideband device for transmitting/receiving multiple packets and method for operating same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,191,903 B2 - Document ID: US12191903B2 - Status: Granted - Kind: B2 - Application number: 18/070,031 - Filed: 2022-11-28 - Published: 2023-06-01 - Granted: 2025-01-07 - Earliest claimed: 2021-11-26 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Mingyu Lee; Jonghoe Koo; Youngwan So; Hyunseob Oh; Junyoung Choi; Taeyoung Ha - Web page: https://patentgrep.com/patent/US12191903B2 ## CPC - G01S 13/0209: {Systems with very large relative bandwidth, i.e. larger than 10 %, e.g. baseband, pulse, carrier-free, ultrawideband} - H04B 1/7183: Synchronisation - G01S 13/765: {with exchange of information between interrogator and responder} - H04B 1/7163: using impulse radio - H04B 1/7176: Data mapping, e.g. modulation - 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 A method for operating a first ultra-wideband (UWB) device according to an embodiment of the disclosure may include: transmitting, in a first slot within a ranging round, a ranging control message for UWB communication; receiving a first packet transmitted by a second UWB device in a second slot within the ranging round based on the ranging control message; and receiving a second packet transmitted by a third UWB device in the second slot within the ranging round based on the ranging control message. ## Claims ### Claim 1 A method by a first ultra-wideband (UWB) device, the method comprising: transmitting, in a slot of control phase within a ranging round, a ranging control message for UWB communication; receiving, from a second UWB device, a first packet in a slot of a ranging phase within the ranging round, wherein the slot of the ranging phase within the ranging round is allocated based on the ranging control message; and receiving, from a third UWB device, a second packet in the slot of the ranging phase within the ranging round. ### Claim 2 (depends on 1) The method of claim 1, wherein the ranging control message includes at least one of: a slot index for the slot of the ranging phase within the ranging round; sender address for identifying the first UWB device; receiver address for identifying the second UWB device; or receiver address for identifying the third UWB device. ### Claim 3 (depends on 1) The method of claim 1, wherein: the first packet is configured as a first SP3 type packet which is a scrambled timestamp sequence (STS) packet (SP) configuration 3, a first timepoint to transmit the first packet in the slot of the ranging phase is configured based on a first offset included in the ranging control message, the second packet is configured as a second SP3 type packet which is SP configuration 3, and a second timepoint to transmit the second packet in the slot of the ranging phase is configured based on a second offset included in the ranging control message. ### Claim 4 (depends on 3) The method of claim 3, wherein the first SP3 type packet comprises a first synchronization header (SHR) and a first STS, and the second SP3 type packet comprises a second SHR and a second STS. ### Claim 5 (depends on 1) The method of claim 1, wherein, in case that the second UWB device and the third UWB device are allocated to an identical slot index corresponding to the slot of the ranging phase in a ranging device management (RDM) list included in the ranging control message, a transmission order for the second UWB device and the third UWB device in the slot of the ranging phase is determined according to an order included in the RDM list. ### Claim 6 (depends on 1) The method of claim 1, wherein the first packet comprises a first synchronization header (SHR), the second packet comprises a second SHR, and the first SHR and the second SHR are configured based on different codes. ### Claim 7 (depends on 6) The method of claim 6, wherein, in case that the second UWB device and the third UWB device are allocated to an identical slot index corresponding to the slot of the ranging phase in a ranging device management (RDM) list included in the ranging control message, SHR codes for the second UWB device and the third UWB device are determined according to an order included in the RDM list. ### Claim 8 (depends on 1) The method of claim 1, wherein: the first packet is configured as a first SP3 type packet which is a scrambled timestamp sequence (STS) packet (SP) configuration 3, wherein the second packet is configured as a second SP3 type packet which is being SP configuration 3, and wherein the first SP3 type packet and the second SP3 type packet are configured based on different codes, respectively. ### Claim 9 (depends on 1) The method of claim 1, wherein the first packet includes a sequence of predetermined size, and the second packet includes a sequence of predetermined size. ### Claim 10 (depends on 1) The method of claim 1, wherein the ranging control message is used to indicate a code index allocated to the second UWB device, and wherein the ranging control message is used to indicate a code index allocated to the third UWB device. ### Claim 11 (depends on 1) The method of claim 1, wherein the first packet comprises at least one of a first preamble and a first scrambled timestamp sequence (STS), and wherein the second packet comprises at least one of a second preamble and a second STS. ### Claim 12 A method by a second ultra-wideband (UWB) device, the method comprising: receiving, from a first UWB device, a ranging control message for UWB communication in a slot of control phase within a ranging round; and transmitting a first packet in a slot of a ranging phase within the ranging round, wherein the slot of the ranging phase within the ranging round is allocated based on the ranging control message, wherein a second packet is transmitted, by a third UWB, in the slot of the ranging phase within the ranging round. ### Claim 13 (depends on 12) The method of claim 12, wherein the ranging control message includes at least one of: a slot index for the slot of the ranging phase within the ranging round; sender address for identifying the first UWB device; receiver address for identifying the second UWB device; or receiver address for identifying the third UWB device. ### Claim 14 (depends on 12) The method of claim 12, wherein: the first packet is configured as a first SP3 type packet which is a scrambled timestamp sequence (STS) packet (SP) configuration 3, a first timepoint to transmit the first packet in the slot of the ranging phase is configured based on a first offset included in the ranging control message, the second packet is configured as a second SP3 type packet which is SP configuration 3, and a second timepoint to transmit the second packet in the slot of the ranging phase is configured based on a second offset included in the ranging control message. ### Claim 15 (depends on 12) The method of claim 12, wherein: the first packet is configured as a first SP3 type packet which is a scrambled timestamp p sequence (STS) packet (SP) configuration 3, wherein the second packet is configured as a second SP3 type packet which is SP configuration 3, and the first SP3 type packet and the second SP3 type packet are configured based on different codes, respectively. ### Claim 16 (depends on 12) The method of claim 12, wherein the first packet includes a sequence of predetermined size, and the second packet includes a sequence of predetermined size. ### Claim 17 (depends on 12) The method of claim 12, wherein the ranging control message is used to indicate a code index allocated to the second UWB device, and wherein the ranging control message is used to indicate a code index allocated to the third UWB device. ### Claim 18 (depends on 12) The method of claim 12, wherein the first packet comprises at least one of a first preamble and a first scrambled timestamp sequence (STS), and wherein the second packet comprises at least one of a second preamble and a second STS. ### Claim 19 A first ultra-wideband (UWB) device comprising: a transceiver; and a controller coupled with the transceiver and configured to control the transceiver to: transmit, in a slot of control phase within a ranging round, a ranging control message for UWB communication, receive, from a second UWB device, a first packet in a slot of a ranging phase within the ranging round, wherein the slot of the ranging phase within the ranging round is allocated based on the ranging control message, and receive, from a third UWB device, a second packet in the slot of the ranging phase within the ranging round. ### Claim 20 A second ultra-wideband (UWB) device comprising: a transceiver; and a controller coupled with the transceiver and configured to control the transceiver to: receive, from a first UWB device, a ranging control message for UWB communication in a slot of control phase within a ranging round, and transmit a first packet in a slot of a ranging phase within the ranging round, wherein the slot of the ranging phase within the ranging round is allocated based on the ranging control message, wherein a second packet is transmitted, by a third UWB device, in the slot of the ranging phase within the ranging round.