US 12,335,951 B2
Wireless base station and wireless terminal
Ken Tanaka, Tokyo (JP)
Assigned to SONY GROUP CORPORATION, Tokyo (JP)
Appl. No. 17/802,958
Filed by SONY GROUP CORPORATION, Tokyo (JP)
PCT Filed Dec. 2, 2020, PCT No. PCT/JP2020/044869
§ 371(c)(1), (2) Date Aug. 28, 2022,
PCT Pub. No. WO2021/176783, PCT Pub. Date Sep. 10, 2021.
Claims priority of application No. 2020-036688 (JP), filed on Mar. 4, 2020.
Prior Publication US 2023/0098215 A1, Mar. 30, 2023
Int. Cl. H04W 72/20 (2023.01)
CPC H04W 72/20 (2023.01) 17 Claims
OG exemplary drawing
 
1. A first coordinated wireless base station, comprising:
a communication unit configured to exchange first information with a second coordinated wireless base station of a plurality of coordinated wireless base stations, wherein
the plurality of coordinated wireless base stations includes the first coordinated wireless base station,
each coordinated wireless base station of the plurality of coordinated wireless base stations performs coordinated transmission, and
the first information is for allocation of a reference signal;
a wireless control unit configured to generate the reference signal based on the first information, wherein
the communication unit is further configured to:
transmit a signal including the reference signal to a wireless terminal in the coordinated transmission; and
receive second information from the wireless terminal based on the transmitted signal, and
the second information includes:
third information indicating a frequency error associated with the plurality of coordinated wireless base stations, and
fourth information indicating a number of coordinated wireless base stations in the plurality of coordinated wireless base stations; and
a signal processing unit configured to correct the frequency error based on the second information.