US 12,238,784 B2
Communication apparatus and communication method
Naoki Kusashima, Kanagawa (JP); Kazuyuki Shimezawa, Kanagawa (JP); and Hiroki Matsuda, Tokyo (JP)
Assigned to SONY GROUP CORPORATION, Tokyo (JP)
Filed by SONY GROUP CORPORATION, Tokyo (JP)
Filed on Jun. 19, 2023, as Appl. No. 18/337,156.
Application 18/337,156 is a continuation of application No. 17/643,915, filed on Dec. 13, 2021, granted, now 11,716,769.
Application 17/643,915 is a continuation of application No. 16/620,041, granted, now 11,240,851, issued on Feb. 1, 2022, previously published as PCT/JP2018/018081, filed on May 10, 2018.
Claims priority of application No. 2017-117977 (JP), filed on Jun. 15, 2017.
Prior Publication US 2023/0413341 A1, Dec. 21, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 74/08 (2024.01); H04L 5/00 (2006.01); H04W 16/28 (2009.01); H04W 72/0446 (2023.01); H04W 72/23 (2023.01); H04W 74/06 (2009.01); H04W 74/0833 (2024.01)
CPC H04W 74/0841 (2013.01) [H04L 5/0048 (2013.01); H04L 5/0053 (2013.01); H04W 16/28 (2013.01); H04W 72/0446 (2013.01); H04W 72/23 (2023.01); H04W 74/06 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A base station device, comprising:
a radio transceiver; and
circuitry configured to control the radio transceiver to:
transmit one or more synchronization signal blocks, each of the one or more synchronization signal blocks comprising:
a New Radio (NR) Primary Synchronization Signal (PSS),
an NR Secondary Synchronization Signal (SSS), and
an NR Physical Broadcast Channel (PBCH), wherein the NR PBCH carries an NR Master Information Block (MIB) which comprises common control resource set information where an NR Physical Downlink Control Channel (PDCCH) is located;
transmit the NR PDCCH to which Cyclic Redundancy Check (CRC) scrambled with a System Information Radio Network Temporary Identifier (SI-RNTI) is added;
transmit an NR Physical Downlink Shared Channel (PDSCH) scheduled by the NR PDCCH;
receive a PRACH associated with a first synchronization signal block selected from among the one or more synchronization signal blocks based on Reference Signal Received Power (RSRP) measurement by a user equipment;
transmit a Random Access Response (RAR) corresponding to the received PRACH; and
receive, after the transmission of the RAR to the user equipment, information regarding a second beam which comprises:
one or more synchronization signal block indices, or
information corresponding to one or more Channel State Information-Reference Signals (CSI-RSs),
wherein a Demodulation Reference Signal (DMRS) of the NR PDCCH, a DMRS of the NR PDSCH and the first synchronization signal block, before the transmission of the RAR to the user equipment, are Quasi-Co-Location (QCL).