Base station device, terminal device, and communication method

Patent metadata

Field	Value
Publication number	US-12395280-B2
Application number	US-202017088524-A
Country	US
Kind code	B2
Filing date	Nov 3, 2020
Priority date	May 14, 2018
Publication date	Aug 19, 2025
Grant date	Aug 19, 2025

Abstract

A base station device that communicates with a terminal device in a wireless manner, the base station device includes, a controller configured to determine an accumulation number which is a number of reception confirmation packets that are able to be accumulated in the terminal device and correspond to packets received from the base station device, in accordance with an amount of data transmitted by the terminal device, and a transmitter configured to transmit a control signal including the determined accumulation number to the terminal device.

First claim

What is claimed is:

1. A base station device that communicates with a terminal device in a wireless manner, the base station device comprising:
a receiver configured to receive data from the terminal device;
a controller configured to determine an accumulation number which is a number of reception confirmation packets that are able to be accumulated in the terminal device, in accordance with an amount of data received from the terminal device, the reception confirmation packets are responses to packets that are transmitted from the base station device to the terminal device, the reception confirmation packets being transmitted from the terminal device to the base station device; and
a transmitter configured to transmit a control signal including the determined accumulation number to the terminal device, wherein
the data is different from the reception confirmation packets, and
the controller is further configured to control to cause the terminal device to discard prior to transmission, a reception confirmation packet which is included in the reception confirmation packets and exceeds the accumulation number by the transmitting of the control signal via the transmitter.

2. The base station device according to claim 1 , wherein
the controller configured to determine the accumulation number for each of a plurality of the terminal devices in a case where the number of terminal devices is plural, and
the transmitter is configured to transmit the control signal for each of the plurality of terminal devices.

3. The base station device according to claim 1 , further comprising
an allocator configured to allocate wireless resources to the terminal device, wherein
the terminal device transmits the number of reception confirmation packets corresponding to the amount of wireless resources allocated to the base station device, among the reception confirmation packets corresponding to the accumulation number, to the base station device.

4. The base station device according to claim 1 , wherein
the controller is further configured to control to cause the terminal device to discard a second reception confirmation packet which is included in the reception confirmation packets when a first reception confirmation packet included in the reception confirmation packets is transmitted by the terminal device.

5. A terminal device that communicates with a base station device configured to receive data from the terminal device in a wireless manner, the terminal device comprising:
a transmitter configured to transmit the data to the base station device;
a receiver configured to receive a control signal including an accumulation number which is a number of reception confirmation packets that are able to be accumulated, the accumulation number being determined by the base station device in accordance with an amount of data transmitted by the terminal device, the reception confirmation packets are responses to packets that are transmitted from the base station device to the terminal device, the reception confirmation packets being transmitted from the terminal device to the base station device; and
a transmission controller configured to:
accumulate the reception confirmation packets corresponding to the accumulation number included in the received control signal, and
discard prior to transmission, the reception confirmation packets which are included in the confirmation packets and exceed the accumulation number, wherein
the data is different from the reception confirmation packets.

6. A communication method in a base station device that communicates with a terminal device in a wireless manner, the communication method comprising:
receiving data from the terminal device;
determining an accumulation number which is a number of reception confirmation packets that are able to be accumulated in the terminal device, in accordance with an amount of data received from the terminal device, the reception confirmation packets are responses to packets that are transmitted from the base station device to the terminal device, the reception confirmation packets being transmitted from the terminal device to the base station device; and
transmitting a control signal including the determined accumulation number to the terminal device, wherein
the data is different from the reception confirmation packets; and
the communication method further comprising controlling to cause the terminal device to discard prior to transmission, a reception confirmation packet which is included in the reception confirmation packets and is exceed the accumulation number by the transmitting of the control signal.

Assignees

• Fujitsu Ltd

Inventors

• Ohta Yoshiaki
• Kawasaki Yoshihiro
• Ode Takayoshi
• Nakamura Michiharu

Classifications

• H04W72/51

  based on terminal or device properties · CPC title

• H04W72/23

  in the downlink direction of a wireless link, i.e. towards a terminal · CPC title

• H04L1/1635

  Cumulative acknowledgement, i.e. the acknowledgement message applying to all previous messages · CPC title

• H04W28/0273

  adapting protocols for flow control or congestion control to wireless environment, e.g. adapting transmission control protocol [TCP] (wireless network protocols or protocol adaptations to wireless operation, e.g. wireless application protocol H04W80/00) · CPC title

• H04L69/163

  In-band adaptation of TCP data exchange; In-band control procedures · CPC title