US 12,155,460 B2
Transmitting apparatus, receiving apparatus, communication system, and communication method
Yuma Kase, Tokyo (JP); and Shinichi Hori, Tokyo (JP)
Assigned to NEC CORPORATION, Tokyo (JP)
Filed by NEC Corporation, Tokyo (JP)
Filed on Sep. 21, 2022, as Appl. No. 17/949,369.
Claims priority of application No. 2021-165332 (JP), filed on Oct. 7, 2021.
Prior Publication US 2023/0198654 A1, Jun. 22, 2023
Int. Cl. H04J 14/08 (2006.01); H04B 10/548 (2013.01); H04J 14/02 (2006.01)
CPC H04J 14/08 (2013.01) [H04B 10/548 (2013.01); H04J 14/02 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A transmitting apparatus comprising:
a digital baseband unit configured to separate a baseband signal into an in-phase component I and a quadrature component Q, and output the in-phase and quadrature components I,Q;
an outphasing signal generation unit configured to generate a first signal pair including an in-phase component I1 and a quadrature component Q1 and a second signal pair including an in-phase component I2 and a quadrature component Q2 based on the in-phase and quadrature components I,Q, wherein the in-phase component I1 and the quadrature component Q1 in the first signal pair have 90° different phase and the in-phase component I2 and the quadrature component Q2 in the second signal pair have 90° different phase, then quadrature-modulating the first signal pair for a first output OP1, in parallel with quadrature-modulating the second signal pair for a second output OP2; and
a time-division combining unit configured to combine the first and second output OP1, OP2 in a time-division manner to generate a time-division combined signal.