IP Library › Granted Patent US 12677219
Granted Patent B2
US 12677219 · App. 18/699,762 · Granted Jul 7, 2026

Transmission system, electric power control apparatus, electric power control method and program

Inventors: Hirotaka Ujikawa (Musashino, JP); Tatsuya Shimada (Musashino, JP); Yoshihito Sakai (Musashino, JP); Kenji Miyamoto (Musashino, JP); Yuka Okamoto (Musashino, JP)
Assignee: NTT, Inc.
H04W52/0216
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Quick Facts
Patent No.
US 12677219
App. No.
18/699,762
Granted
Jul 7, 2026
Kind
B2
Abstract

A first transmission apparatus receives a data signal transmitted by a communication apparatus from a lower transmission apparatus sets the received data signal in a data unit, and transmits the data unit. A second transmission apparatus receives the data unit transmitted by the first transmission apparatus. An electric power controller calculates an arrival start timing that is a timing at which the data unit including a data signal transmitted from a communication apparatus starts to arrive at the second transmission apparatus on a basis of a code rate and a size of a data transmission block used when the communication apparatus transmits the data signal, and performs control such that a sleep state of a signal processor that performs processing on the data unit in the second transmission apparatus is ended before the arrival start timing.

Claims (24)

1 . A transmission system comprising:

a first transmission apparatus that receives a data signal transmitted by a communication apparatus from a lower transmission apparatus sets the received data signal in a data unit, and transmits the data unit;

a second transmission apparatus that receives the data unit transmitted by the first transmission apparatus; and

an electric power controller that calculates an arrival start timing that is a timing at which the data unit including a data signal transmitted from a communication apparatus starts to arrive at the second transmission apparatus on a basis of a code rate and a size of a data transmission block used when the communication apparatus transmits the data signal, and performs control such that a sleep state of a signal processor that performs processing on the data unit in the second transmission apparatus is ended before the arrival start timing.

2 . An electric power control apparatus comprising

an electric power controller that calculates an arrival start timing that is a timing at which a data unit including a data signal transmitted by a communication apparatus starts to arrive at a second transmission apparatus on a basis of a code rate and a size of a data transmission block used when the communication apparatus transmits the data signal, the data unit being transmitted by a first transmission apparatus that receives a data signal transmitted by the communication apparatus from a lower transmission apparatus, and performs control such that a sleep state of a signal processor that performs processing on the data unit in the second transmission apparatus is ended before the arrival start timing.

3 . The electric power control apparatus according to claim 2 ,

wherein the electric power controller calculates an arrival end timing that is a timing at which the data unit including the data signal transmitted by the communication apparatus ends arrival at the second transmission apparatus on a basis of the code rate and a size of the data transmission block, and an amount of data transmitted by the data unit, and performs control such that a sleep state of the signal processor is started after the arrival end timing.

4 . The electric power control apparatus according to claim 3 ,

wherein the communication apparatus wirelessly transmits the data unit, and

the electric power controller acquires the code rate and a size of the data transmission block on a basis of a modulation and coding scheme (MCS) index in notification to the communication apparatus.

5 . The electric power control apparatus according to claim 3 ,

wherein the communication apparatus wirelessly transmits the data unit, and

the electric power controller acquires the code rate and a size of the data transmission block on a basis of radio reception quality in the communication apparatus.

6 . The electric power control apparatus according to claim 2 ,

wherein the communication apparatus wirelessly transmits the data unit, and

the electric power controller acquires the code rate and a size of the data transmission block on a basis of a modulation and coding scheme (MCS) index in notification to the communication apparatus.

7 . The electric power control apparatus according to claim 2 ,

wherein the communication apparatus wirelessly transmits the data unit, and

the electric power controller acquires the code rate and a size of the data transmission block on a basis of radio reception quality in the communication apparatus.

8 . A transmission control method comprising:

receiving, by a first transmission apparatus, a data signal transmitted by a communication apparatus from a lower transmission apparatus, setting the received data signal in a data unit, and transmitting the data unit;

receiving, by a second transmission apparatus, the data unit transmitted by the first transmission apparatus; and

calculating, by an electric power controller, an arrival start timing that is a timing at which the data unit including a data signal transmitted from a communication apparatus starts to arrive at the second transmission apparatus on a basis of a code rate and a size of a data transmission block used when the communication apparatus transmits the data signal, and performing control such that a sleep state of a signal processor that performs processing on the data unit in the second transmission apparatus is ended before the arrival start timing.