# US 10,873,432 B2 · Apparatus and method for locating of phase tracking reference signal in wireless communication system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,873,432 B2 - Document ID: US10873432B2 - Status: Granted - Kind: B2 - Application number: 16/018,834 - Filed: 2018-06-26 - Published: 2019-03-14 - Granted: 2020-12-22 - Earliest claimed: 2017-09-08 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Mythri Hunukumbure; Yinan Qi; Hyunil Yoo; Hyungju Nam - Web page: https://patentgrep.com/patent/US10873432B2 ## CPC - 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} - H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA - H04L 5/005: {of common pilots, i.e. pilots destined for multiple users or terminals} - H04L 5/0051: {of dedicated pilots, i.e. pilots destined for a single user or terminal} - H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals} - H04L 5/0062: {Avoidance of ingress interference, e.g. ham radio channels} - 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 providing a phase tracking reference signal (PTRS) amongst a set of resource blocks (RBs) and an apparatus therefor are provided. The method includes selecting a particular RB amongst the set of RBs (operation S41) and arranging the PTRS in the particular RB (operation S42). The PTRS is locatable by a user equipment (UE) device from amongst the set of RBs. Also provided are a set of resource blocks (RBs), a transmission/reception point (TRP), a UE device, a system including a TRP and a UE device, a method therefor and a computer-readable storage medium. The method and apparatus relate to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long-Term Evolution (LTE). ## Claims ### Claim 1 A method performed by a user equipment (UE) for a phase tracking reference signal (PTRS), the method comprising: identifying a frequency density and a PTRS offset for a resource block (RB), wherein the PTRS offset is associated with information specific to the UE; identifying one or more RBs from a set of allocated RBs based on the frequency density and the PTRS offset; and transmitting or receiving at least one PTRS on the one or more RBs. ### Claim 2 (depends on 1) The method of claim 1, the method further comprising: receiving information associated with at least one of the frequency density or a location of the one or more RBs based on a radio resource control (RRC) signaling. ### Claim 3 (depends on 1) The method of claim 1, wherein the frequency density is determined based on a bandwidth of the set of allocated RBs, and wherein the PTRS offset is configured for the UE. ### Claim 4 (depends on 1) The method of claim 1, wherein the identifying of the one or more RBs comprises: if the set of allocated RBs is a non-contiguous set of RBs which comprises multiple separated RB groups, assigning the one or more RBs in order that each of the multiple separated RB groups comprises at least one of the one or more RBs. ### Claim 5 A method performed by a base station (BS) for a phase tracking reference signal (PTRS), the method comprising: determining one or more resource blocks (RBs) from a set of allocated RBs based on a frequency density and a PTRS offset for an RB, wherein the PTRS offset is associated with information specific to a user equipment (UE); and transmitting or receiving at least one PTRS for the UE on the one or more RBs. ### Claim 6 (depends on 5) The method of claim 5, further comprising: transmitting information of at least one of the frequency density or a location of the one or more RBs based on a radio resource control (RRC) signaling. ### Claim 7 (depends on 5) The method of claim 5, wherein the frequency density is determined based on a bandwidth of the set of allocated RBs, and wherein the PTRS offset is configured for the UE. ### Claim 8 (depends on 5) The method of claim 5, wherein, if the set of allocated RBs is a non-contiguous set of RBs which comprises multiple separated RB groups, assigning the one or more RBs in order that each of the multiple separated RB groups comprises at least one of the one or more RBs. ### Claim 9 A user equipment (UE) for a phase tracking reference signal (PTRS), the UE comprising: at least one transceiver; and at least one processor operably coupled to the at least one transceiver, wherein the at least one processor is configured to: identify a frequency density and a PTRS offset for a resource block (RB), wherein the PTRS offset is associated with information specific to the UE, identify one or more RBs from a set of allocated RBs based on the frequency density and the PTRS offset, and control the at least one transceiver to transmit or receive at least one PTRS on the one or more RBs. ### Claim 10 (depends on 9) The UE of claim 9, wherein the frequency density is determined based on a bandwidth of the set of allocated RBs, and wherein the PTRS offset is configured for the UE. ### Claim 11 (depends on 1) The method of claim 1, wherein the PTRS offset depends on the frequency density. ### Claim 12 (depends on 5) The method of claim 5, wherein the PTRS offset depends on the frequency density. ### Claim 13 (depends on 9) The UE of claim 9, wherein the PTRS offset depends on the frequency density. ### Claim 14 A base station (BS) for a phase tracking reference signal (PTRS), the BS comprising: at least one transceiver; and at least one processor operably coupled to the at least one transceiver, wherein the at least one processor is configured to: determine one or more resource blocks (RBs) from a set of allocated RBs based on a frequency density and a PTRS offset for an RB, wherein the PTRS offset is associated with information specific to a user equipment (UE), and transmit or receive at least one PTRS on the one or more RBs, and wherein the PTRS offset is specific to the UE.