US 12,273,169 B2
Dynamically beamformed control channel for beamformed cells
Huaning Niu, Milpitas, CA (US); Hyejung Jung, Palatine, IL (US); Gang Xiong, Beaverton, OR (US); Yushu Zhang, Beijing (CN); Hooman Shirani-Mehr, Portland, OR (US); Yuan Zhu, Beijing (CN); and Jong-Kae Fwu, Sunnyvale, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Jul. 7, 2022, as Appl. No. 17/859,363.
Application 17/859,363 is a division of application No. 15/766,561, abandoned, previously published as PCT/US2015/067071, filed on Dec. 21, 2015.
Claims priority of provisional application 62/238,606, filed on Oct. 7, 2015.
Prior Publication US 2022/0352943 A1, Nov. 3, 2022
Int. Cl. H04B 7/06 (2006.01); H04J 11/00 (2006.01); H04L 5/00 (2006.01); H04L 27/26 (2006.01); H04W 36/00 (2009.01); H04W 72/23 (2023.01); H04W 88/16 (2009.01)
CPC H04B 7/0617 (2013.01) [H04J 11/00 (2013.01); H04L 5/00 (2013.01); H04L 5/0048 (2013.01); H04L 5/0051 (2013.01); H04L 27/2602 (2013.01); H04W 36/0022 (2013.01); H04W 72/23 (2023.01); H04W 88/16 (2013.01); H04J 2011/0009 (2013.01); H04J 2011/0096 (2013.01); H04L 5/005 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus comprising processing circuitry configured to cause a base station (BS) to:
transmit a downlink signal that includes a plurality of orthogonal frequency division multiplexing (OFDM) symbols, wherein a time-frequency resource domain of the downlink signal includes transmissions of a plurality of downlink control channels, wherein transmission of a first of the plurality of downlink control channels occurs within a first group of one or more OFDM symbols from said plurality of OFDM symbols, wherein transmission of a second of the plurality of downlink control channels occurs within a second group of one or more OFDM symbols from said plurality of OFDM symbols,
wherein said transmitting includes:
transmitting first downlink control information using first beamforming parameters, wherein the first downlink control information is transmitted on said first of the plurality of downlink control channels formed from a first set of one or more control channel elements (CCEs) with a localized or distributed mapping between resource element groups (REGs) and CCEs, wherein each of the REGs of said first of the plurality of downlink control channels spans a range of one OFDM symbol duration and 12 frequency subcarriers, wherein resource elements are reserved for only one REG within its respective range; and
transmitting second downlink control information using second beamforming parameters, wherein the second downlink control information is transmitted on said second of the plurality of downlink control channels.