US 12,034,583 B2
Base station, terminal apparatus, communication method and recording medium
Takashi Nakayama, Chiba (JP)
Assigned to SONY MOBILE COMMUNICATIONS INC., Tokyo (JP)
Filed by Sony Mobile Communications Inc., Tokyo (JP)
Filed on Apr. 18, 2023, as Appl. No. 18/301,993.
Application 18/301,993 is a continuation of application No. 17/530,462, filed on Nov. 19, 2021, granted, now 11,671,302.
Application 17/530,462 is a continuation of application No. 16/313,646, granted, now 11,212,153, issued on Dec. 28, 2021, previously published as PCT/JP2017/013802, filed on Mar. 31, 2017.
Claims priority of application No. 2016-134132 (JP), filed on Jul. 6, 2016; and application No. 2016-172511 (JP), filed on Sep. 5, 2016.
Prior Publication US 2023/0254195 A1, Aug. 10, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 27/26 (2006.01); H04B 7/0413 (2017.01); H04B 7/06 (2006.01); H04B 7/10 (2017.01); H04W 16/28 (2009.01); H04W 56/00 (2009.01); H04W 72/044 (2023.01); H04W 72/0446 (2023.01); H04W 88/08 (2009.01); H04J 13/00 (2011.01); H04W 36/08 (2009.01)
CPC H04L 27/2657 (2013.01) [H04B 7/0413 (2013.01); H04B 7/0617 (2013.01); H04B 7/10 (2013.01); H04L 27/2691 (2013.01); H04W 16/28 (2013.01); H04W 56/001 (2013.01); H04W 72/0446 (2013.01); H04W 72/046 (2013.01); H04W 88/08 (2013.01); H04W 88/085 (2013.01); H04J 13/0062 (2013.01); H04W 36/08 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A base station comprising:
circuitry comprising a transceiver and a processor, the circuitry being configured to:
transmit, for each of a plurality of beam groups, plural beams comprising a beam-group specific synchronization signal,
wherein each beam group of the plurality of beam groups corresponds to a different partial area of a communication target area of the base station for communicating with a terminal device,
wherein the beam-group specific synchronization signals are orthogonal to each other,
send, to the terminal device, synchronization information for a beam group of the plurality of beam groups, the synchronization information being for a synchronization in a time domain between the terminal device and the base station and comprising:
timing information regarding the synchronization in the time domain between the terminal device and the base station, and
information regarding the beam group; and
receive, from the terminal device, information indicating a beam group identifier of the beam group and information indicating a beam identifier of a beam from among the transmitted plural beams in the beam group,
wherein the beam is determined by the terminal device based on a reception quality of the transmitted plural beams included in the beam group.