US 12,676,710 B2Granted

Wireless communication device

AssigneeInternational Semiconductor Group

InventorsRyoko Matsuo, Tomoya Tandai

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Abstract

According to one embodiment, a wireless communication device includes a receiver, a controller and a transmitter. The receiver receives a terminal identifier of a first terminal being a target for downlink frequency multiplexing transmission from another wireless communication device, and receives information identifying, of a plurality of frequency components, a first frequency component allocated to the first terminal. The controller selects, of a plurality second terminals belonging to the wireless communication device, a second terminal having a terminal identifier same as that of the first terminal and allocates the first frequency component to the selected second terminal. The transmitter transmits a header at a band including the plurality of frequency components, the header including the terminal identifier of the selected second terminal in a first field corresponding to the first frequency component, and transmits a first frame addressed to the selected second terminal via the first frequency component.

Claims14

Dependent claims

A wireless communication device communicating with a second wireless communication device, comprising:

a receiver configured to
receive a terminal identifier of a first terminal being a target for downlink frequency multiplexing transmission from the second wireless communication device and the terminal identifier of the first terminal being allocated by the second wireless communication device, and
receive information identifying, among a plurality of frequency components, a first frequency component allocated to the first terminal;
a controller configured to
select, among a plurality of second terminals belonging to the wireless communication device, a terminal identifier of the second terminal being allocated by the wireless communication device and being same as the terminal identifier of the first terminal, and
allocate the first frequency component to the selected second terminal;
and
a transmitter configured to transmit a first physical packet in a period at least partially overlapping with a period in which a second physical packet is transmitted from the second wireless communication device, the first physical packet including
(1) a first header containing a plurality of first fields associated with the plurality of frequency components, the terminal identifier of the selected second terminal being set in a field corresponding to the first frequency component among the plurality of first fields, and
(2) a first frame addressed to the second terminal,
wherein the first header is transmitted at a frequency band including the plurality of frequency components and the first frame is transmitted via the first frequency component, the transmitter being configured to transmit the terminal identifier of the second terminal and the information identifying the first frequency component to the second wireless communication device,
wherein the second physical packet including
(1) a second header containing a plurality of second fields associated with the plurality of frequency components, the terminal identifier of the first terminal being set in a field corresponding to the first frequency component among the plurality of second fields, and
(2) a second frame addressed to the first terminal, the second header being transmitted at the frequency band including the plurality of frequency components and the second frame is transmitted via the first frequency component, and
a format of the first header being the same as a format of the second header.

12 more elements

A wireless communication device communicating with a second wireless communication device, comprising:

a receiver configured to
receive a terminal identifier of a first terminal being a target for downlink frequency multiplexing transmission from second wireless communication device, and
receive information identifying, among a plurality of frequency components, a first frequency component allocated to the first terminal, the terminal identifier of the first terminal being allocated by the second wireless communication device;
a controller configured to select, among a plurality second terminals belonging to the wireless communication device, at least one second terminal allocated with the first frequency component, the terminal identifier of the at least one second terminal being allocated by the wireless communication device;
and
a transmitter configured to transmit a first physical packet in a period at least partially overlapping with a period in which a second physical packet is transmitted from the second wireless communication device, the first physical packet including
(1) a first header containing at least a plurality of first fields associated with the first frequency component, the terminal identifier of the first terminal being set in a field of the plurality of first fields associated with the first frequency component, a terminal identifier of the at least one selected second terminal being set in at least one field of the plurality of first fields associated with the first frequency component, and
(2) at least one first frame addressed to the at least one second terminal,
wherein the first header is transmitted at a frequency band including the plurality of frequency components and
the at least one first frame is transmitted via the first frequency component in a spatial multiplexing manner,
the transmitter is configured to transmit the terminal identifier of the at least one second terminal and the information identifying the first frequency component to the second wireless communication device,
the second physical packet includes
(1) a second header containing a plurality of second fields associated with the first frequency component, the terminal identifier of the first terminal being set in a field of the plurality of second fields associated with the first frequency component and the terminal identifier of the at least one selected second terminal being set in at least one field of the plurality of second fields associated with the first frequency component, and
(2) a second frame addressed to the first terminal,
wherein the second header is transmitted at the frequency band including the plurality of frequency components,
the first frame is transmitted via the first frequency component in a spatial multiplexing manner, and
a format of the first header is the same as a format of the second header.

14 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/909,585Filed 8 Oct 2024 · continuation
Priority: JP 2017-05018615 Mar 2017
Published: US 2025/0030513 A123 Jan 2025
Granted: 7 Jul 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification14 codes

H04L 5/0035
Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation: resource allocation in a cooperative…
H04B 7/0452
MIMO systems: multi-user MIMO systems
H04B 7/0697
At the transmitting station: using spatial multiplexing
H04L 5/0037
Arrangements for allocating sub-channels of the transmission path: inter-user or inter-terminal allocation

Family

Application15/918,295Parent of this continuation · filed 12 Mar 2018
Application17/555,584Parent of this continuation · filed 20 Dec 2021
US 11,228,408 B2Parent of this continuation · filed 18 Jan 2022
Application18/504,259Parent of this continuation · filed 8 Nov 2023
US 11,818,063 B2Parent of this continuation · filed 14 Nov 2023
US 2025/0030513 A1Pre-grant publication · published 23 Jan 2025
US 12,137,063 B2Parent of this continuation
US 2018/0270029 A1Published application
US 2022/0116164 A1Published application
US 2024/0072953 A1Published application
US 12,676,710 B2This patent

From the US filing history. Foreign family members aren’t listed.