# US 12,003,316 B2 · Reference signaling for radio access networks > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,003,316 B2 - Document ID: US12003316B2 - Status: Granted - Kind: B2 - Application number: 17/265,720 - Filed: 2018-08-05 - Published: 2021-06-24 - Granted: 2024-06-04 - Earliest claimed: 2018-08-05 - Assignees: Telefonaktiebolaget LM Ericsson (publ) - Applicants: Telefonaktiebolaget LM Ericsson (publ) - Inventors: Robert Baldemair; Stefan Parkvall; Erik Dahlman; Sorour Falahati - Web page: https://patentgrep.com/patent/US12003316B2 ## CPC - H04J 11/0079: {Acquisition of downlink reference signals, e.g. detection of cell-ID} - H04J 11/0056: {Inter-base station aspects} - H04J 11/0093: {Neighbour cell search} - 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 5/14: Two-way operation using the same type of signal, i.e. duplex - H04J: MULTIPLEX COMMUNICATION (transmission in general H04B; peculiar to transmission of digital information H04L5/00; systems for the simultaneous or sequential transmission of more than one television signal H04N7/08; in exchanges H04Q11/00; stereophonic systems H04S) - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract There is disclosed a method of operating a network node for a radio access network. The method includes transmitting reference signaling indicating an identity associated to the network node. The disclosure also pertains to related devices and methods. ## Claims ### Claim 1 A method of operating a radio network node for a radio access network, the method comprising: transmitting reference signaling indicating an identity associated to the network node involved in BS-to-BS interference, the reference signaling having a signal structure including at least one differentiable connection between at least one pair of adjacent resource elements in a time domain covering a first symbol that repeats in a time domain, a part of the first symbol being appended to the first symbol either as a prefix or a suffix such that the first symbol and a repeated succeeding symbol have a differentiable connection in the time domain at a symbol border between the first symbol and the repeated succeeding symbol, the first symbol and the repeated succeeding symbol being mapped to a pair of adjacent resource elements in the time-domain. ### Claim 2 A radio network node for a radio access network, the radio network node being configured to: transmit reference signaling indicating an identity associated to the network node involved in BS-to-BS interference, the reference signaling having a signal structure including at least one differentiable connection between at least one pair of adjacent resource elements in a time domain covering a first symbol that repeats in a time domain, a part of the first symbol being appended to the first symbol either as a prefix or a suffix such that the first symbol and a repeated succeeding symbol have a differentiable connection in the time domain at a symbol border between the first symbol and the repeated succeeding symbol, the first symbol and the repeated succeeding symbol being mapped to a pair of adjacent resource elements in the time-domain. ### Claim 3 A method of operating a receiving network node in a radio access network, the method comprising: receiving, by the receiving network node, reference signaling from a second network node involved in BS-to-BS interference, the reference signaling indicating an identity associated to the second network node, the reference signaling having a signal structure including at least one differentiable connection between at least one pair of adjacent resource elements in a time domain covering a first symbol that repeats in a time domain, a part of the first symbol being appended to the first symbol either as a prefix or a suffix such that the first symbol and a repeated succeeding symbol have a differentiable connection in the time domain at a symbol border between the first symbol and the repeated succeeding symbol, the first symbol and the repeated succeeding symbol being mapped to a pair of adjacent resource elements in the time-domain. ### Claim 4 A receiving network node for a radio access network, the receiving node being configured to: receive reference signaling from a second network node involved in BS-to-BS interference, the reference signaling indicating an identity associated to the second network node, the reference signaling having a signal structure including at least one differentiable connection between at least one pair of adjacent resource elements in a time domain covering a first symbol that repeats in a time domain, a part of the first symbol being appended to the first symbol either as a prefix or a suffix such that the first symbol and a repeated succeeding symbol have a differentiable connection in the time domain at a symbol border between the first symbol and the repeated succeeding symbol, the first symbol and the repeated succeeding symbol being mapped to a pair of adjacent resource elements in the time-domain. ### Claim 5 (depends on 1) The method according to claim 1, wherein the reference signaling has a non-cyclic appendix. ### Claim 6 (depends on 1) The method according to claim 1, wherein the reference signaling in combination with information from the SS/PBCH block transmission indicates the identity. ### Claim 7 (depends on 1) The method according to claim 1, wherein the identity is at least one of a group identity, a cell identity and a network node identity. ### Claim 8 (depends on 1) The method according to claim 1, wherein the reference signaling is mapped to resource elements according to a sequence indicating the identity. ### Claim 9 (depends on 1) The method according to claim 1, wherein the reference signaling is transmitted at different intervals than the SS/PBCH block transmission. ### Claim 10 A non-transitory computer storage medium storing executable program instructions configured to cause processing circuitry to at least one of control and perform a method of operating a radio network node for a radio access network, the method comprising: transmitting reference signaling indicating an identity associated to the network node involved in BS-to-BS interference, the reference signaling having a signal structure including at least one differentiable connection between at least one pair of adjacent resource elements in a time domain covering a first symbol that repeats in a time domain, a part of the first symbol being appended to the first symbol either as a prefix or a suffix such that the first symbol and a repeated succeeding symbol have a differentiable connection in the time domain at a symbol border between the first symbol and the repeated succeeding symbol, the first symbol and the repeated succeeding symbol being mapped to a pair of adjacent resource elements in the time-domain. ### Claim 11 (depends on 3) The method according to claim 3, wherein the reference signaling has a non-cyclic appendix. ### Claim 12 (depends on 3) The method according to claim 3, wherein the reference signaling in combination with information from the SS/PBCH block transmission indicates the identity. ### Claim 13 (depends on 3) The method according to claim 3, wherein the identity is at least one of a group identity, a cell identity and a network node identity. ### Claim 14 (depends on 3) The method according to claim 3, wherein the reference signaling is mapped to resource elements according to a sequence indicating the identity. ### Claim 15 (depends on 3) The method according to claim 3, wherein the reference signaling has a non-cyclic appendix.