# US 12,225,558 B2 · Terminal and communication method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,225,558 B2 - Document ID: US12225558B2 - Status: Granted - Kind: B2 - Application number: 17/753,386 - Filed: 2019-09-05 - Published: 2022-08-25 - Granted: 2025-02-11 - Earliest claimed: 2019-09-05 - Assignees: Ntt Docomo, Inc. - Applicants: Ntt Docomo, Inc. - Inventors: Daiki Takeda; Tomoya Ohara; Hiroki Harada - Web page: https://patentgrep.com/patent/US12225558B2 ## CPC - H04W 56/0015: {one node acting as a reference for the others} - H04W 72/30: Resource management for broadcast services - H04L 5/0023: {Time-frequency-space} - 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 16/14: Spectrum sharing arrangements {between different networks} - H04W 56/001: {Synchronization between nodes} - H04W 72/0446: Resources in time domain, e.g. slots or frames - H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA - H04L 5/0007: {the frequencies being orthogonal, e.g. OFDM(A) or DMT} - H04W 74/0833: Random access procedures, e.g. with 4-step access - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract A terminal includes a reception unit that receives, from a base station, a first set including a plurality of resources that include at least a synchronization signal and optionally further include a broadcast channel and a second set including a plurality of resources that include at least a synchronization signal added to the first set in a frequency domain and optionally further include a broadcast channel, a control unit that assumes a Quasi co location (QCL) identical to a QCL assumed for the first set when receiving the second set, and a communication unit that executes a random access procedure with the base station based on information included in the resources. ## Claims ### Claim 1 A terminal, comprising: a reception unit that receives, from a base station, a first set including a plurality of resources that include at least a synchronization signal and optionally further include a broadcast channel and a second set repeatedly arranged in a frequency direction and including a plurality of resources that include at least a synchronization signal and optionally further include a broadcast channel; a control unit that assumes a Quasi co location (QCL) identical to a QCL assumed for the first set when receiving the second set; and a communication unit that executes a random access procedure with the base station based on information included in the plurality of resources of the first set or the plurality of resources of the second set, wherein a frequency position of the second set is changed for each period in a time domain, and wherein the second set comprises at least one Synchronization Signal Block (SSB). ### Claim 2 (depends on 1) The terminal according to claim 1, wherein the reception unit receives, from the base station, the second set arranged at a second frequency position different from a first frequency position in which the first set is arranged. ### Claim 3 (depends on 2) The terminal according to claim 2, wherein the reception unit receives the first set and the second set in a same slot or receives the second set in a slot different from a slot for the first set. ### Claim 4 (depends on 1) The terminal according to claim 1, wherein the reception unit receives information indicating whether or not a plurality of resources arranged in different frequency domains are receivable together, and further receives, in a case in which the plurality of resources arranged in different frequency domains are receivable together: information related to time positions or frequency positions of a plurality of the resources; information indicating a pattern related to a time arrangement of the resources; or information related to time synchronization of a carrier via which the resources are transmitted, and the control unit performs control such that the resources are received based on the information related to the time positions or the frequency positions, the information indicating the pattern related to the time arrangement, or the information related to the time synchronization. ### Claim 5 A communication method executed by a terminal, the method comprising: receiving, from a base station, a first set including a plurality of resources that include at least a synchronization signal and optionally further include a broadcast channel and a second set including a plurality of resources that include at least a synchronization signal repeatedly arranged in a frequency direction and optionally further include a broadcast channel; assuming a Quasi co location (QCL) identical to a QCL assumed for the first set when receiving the second set; and executing a random access procedure with the base station based on information included in the plurality of resources of the first set or the plurality of resources of the second set, wherein a frequency position of the second set is changed for each period in a time domain, and wherein the second set comprises at least one Synchronization Signal Block (SSB).