IP Library Granted Patent US 11,838,394
Granted Patent B2
US 11,838,394 · App. 17/735,406 · Granted Dec 5, 2023

Wireless communication device and wireless communication method

Inventors: Toshihisa Nabetani (Kawasaki, JP); Ryoko Matsuo (Shinagawa, JP); Tomoko Adachi (Kawasaki, JP); Tsuguhide Aoki (Kawasaki, JP)
Assignee: KABUSHIKI KAISHA TOSHIBA
H04L69/16H04B7/0452H04L1/16H04W16/28
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Quick Facts
Patent No.
US 11,838,394
App. No.
17/735,406
Granted
Dec 5, 2023
Kind
B2
Abstract

According to one embodiment, a wireless communication device includes: a receiver configured to receive a plurality of first frames transmitted by spatial multiplexing; and a transmitter configured to transmit a second frame containing check results indicating whether the first frames are successfully received and first information specifying at least one communication device. The receiver is configured to receive a plurality of third frames transmitted by spatial multiplexing from a communication device having transmitted the first frame the check result of which represents failure and the communication device specified in the first information.

Claims (12)

1. A wireless communication device comprising:

a receiver configured to receive a plurality of first frames transmitted by multiuser multiplexing from each of a plurality of first communication devices, wherein transmitter addresses of the first frames are different from each other; and

a transmitter configured to transmit a packet including at least one second frame and a third frame, the at least one second frame contains check results indicating the first frames that are successfully received from each of the plurality of first communication devices and the third frame contains first information specifying a plurality of second communication devices, the second communication devices including at least one of the plurality of first communication devices and including at least one third communication device different from the plurality of first communication devices, wherein

the receiver is configured to receive a plurality of fourth frames transmitted by multiuser multiplexing in response to the packet from the at least one of the plurality of first communication devices and from the at least one third communication device specified in the first information.

2. The wireless communication device according to claim 1 , wherein the at least one of the plurality of first communication devices that transmits the fourth frame is a first communication device for which at least one of the first frames has not been a success among the at least one of the plurality of first communication devices included in the plurality of second communication devices.

3. The wireless communication device according to claim 2 , wherein the fourth frame transmitted by the first communication device for which at least one of the first frames has not been a success is a retransmitted frame of the first frame.

4. The wireless communication device according to claim 3 , wherein the at least one of the plurality of first communication devices that transmits the fourth frame is a first communication device for which at least one of the first frames has not been a success among the at least one of the plurality of first communication devices included in the plurality of second communication devices.

5. The wireless communication device according to claim 1 , further comprising at least one antenna.

6. A wireless communication method comprising:

receiving a plurality of first frames transmitted by multiuser multiplexing from each of a plurality of first communication devices, wherein transmitter addresses of the first frames are different from each other;

transmitting a packet including at least one second frame and a third frame, the at least one second frame contains check results indicating the first frames that are successfully received from each of the plurality of first communication devices and the third frame contains first information specifying a plurality of second communication devices, the second communication devices including at least one of the plurality of first communication devices and including at least one third communication device different from the plurality of first communication devices; and

receiving a plurality of fourth frames transmitted by multiuser multiplexing in response to the packet from the at least one of the plurality of first communication devices and from the at least one third communication device specified in the first information.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 11, 2022
From: TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION
To: INTERNATIONAL SEMICONDUCTOR GROUP
Reel/Frame 061744/0776 →
Priority Claims (1)
JP 2014-045490 · Mar 7, 2014 · national
Continuity (5)
Continuation 16796210 · Feb 20, 2020
Continuation 16281998 · Feb 21, 2019
Continuation 15255671 · Sep 2, 2016
Continuation PCTJP2015056869 · Mar 9, 2015
Related Publication 20220263926A1 · Aug 18, 2022