Time-division multi-channel transmission and reception system

Patent metadata

Field	Value
Publication number	US-12563325-B2
Application number	US-202418439939-A
Country	US
Kind code	B2
Filing date	Feb 13, 2024
Priority date	Sep 5, 2023
Publication date	Feb 24, 2026
Grant date	Feb 24, 2026

Abstract

Disclosed is a time-division multi-channel transmission and reception system including a transmitter and a receiver. The transmitter includes a first transmit channel that outputs a first transmit signal based on a first time-division pulse signal, a second transmit channel that outputs a second transmit signal based on a second time-division pulse signal, and a time-division pulse generator that generates the first time-division pulse signal and the second time-division pulse signal based on a clock signal. The first transmit signal and the second transmit signal are separated from each other in time.

First claim

What is claimed is:

1 . A time-division multi-channel transmission and reception system including a transmitter and a receiver, the time-division multi-channel transmission and reception system comprising:
the transmitter including: a first transmit channel configured to output a first transmit signal based on a first time-division pulse signal; a second transmit channel configured to output a second transmit signal based on a second time-division pulse signal; and a time-division pulse generator configured to generate, from a single clock signal, a sequence of pulses that are sequentially distributed to different transmit channels, wherein the first time-division pulse signal and the second time-division pulse signal are respectively provided to the first transmit channel and the second transmit channel, wherein the first transmit signal and the second transmit signal are separated from each other in time.

2 . The time-division multi-channel transmission and reception system of claim 1 , wherein the time-division pulse generator includes:
a pulse generator configured to generate a pulse at a certain period based on the clock signal; and a switch configured to generate the first time-division pulse signal and the second time-division pulse signal based on the pulse.

3 . The time-division multi-channel transmission and reception system of claim 2 , wherein the pulse generator includes a delay locked loop.

4 . The time-division multi-channel transmission and reception system of claim 2 , wherein the pulse generator is configured to control a pulse width and a pulse period of the pulse based on a pulse control signal.

5 . The time-division multi-channel transmission and reception system of claim 2 , wherein the pulse includes a first pulse and a second pulse being sequentially generated, and
wherein the switch is configured to output the first pulse to the first transmit channel to generate the first time-division pulse signal and output the second pulse to the second transmit channel to generate the second time-division pulse signal.

6 . The time-division multi-channel transmission and reception system of claim 1 , further comprising:
a local signal generator configured to generate a local signal, wherein the first transmit channel includes: an up-mixer configured to perform frequency conversion of the first time-division pulse signal based on the local signal to output a transmit converted signal; a power amplifier configured to amplify the transmit converted signal to output a transmit amplified signal; and a transmit antenna configured to radiate the first transmit signal to the outside based on the transmit amplified signal.

7 . The time-division multi-channel transmission and reception system of claim 6 , wherein the receiver includes:
a first receive channel configured to receive a first receive signal; a second receive channel configured to receive a second receive signal; and a signal processor configured to process signals received from the first receive channel and the second receive channel.

8 . The time-division multi-channel transmission and reception system of claim 7 , wherein the first receive channel includes:
a receive antenna configured to receive the first receive signal; a low noise amplifier configured to amplify the first receive signal and output a receive amplified signal; an IQ down-mixer configured to convert a frequency of the receive amplified signal based on the local signal to output a receive converted signal; an IQ low pass filter configured to pass a low bandwidth signal including a frequency of the received converted signal; and an IQ variable gain amplifier configured to amplify the signal passing through the IQ low pass filter.

9 . The time-division multi-channel transmission and reception system of claim 8 , wherein the signal processor includes an analog-to-digital converter configured to convert the signals received from the first receive channel and the second receive channel into digital signals.

10 . The time-division multi-channel transmission and reception system of claim 8 , wherein the IQ down-mixer includes a frequency multiplier for converting a frequency of the local signal and a quadrature-phase signal generator for converting a phase of the receive amplified signal.

11 . An operation method of a time-division multi-channel transmission and reception system including a first transmit channel, a second transmit channel, and a time-division pulse generator, the operation method comprising:
generating, by the time-division pulse generator, from a clock signal generated and output by a clock generator, a sequence of pulses that are sequentially distributed to different transmit channels; outputting, by the time-division pulse generator, a first pulse to the first transmit channel to generate a first time-division pulse signal; and outputting, by the time-division pulse generator, a second pulse to the second transmit channel to generate a second time-division pulse signal, wherein the second pulse is generated after a certain pulse repetition interval elapses after the first pulse is generated.

12 . The operation method of claim 11 , wherein the time-division pulse generator includes:
a pulse generator configured to generate the first pulse and the second pulse based on the clock signal; and a switch configured to generate the first time-division pulse signal based on the first pulse and generate the second time-division pulse signal based on the second pulse.

13 . The operation method of claim 11 , wherein the time-division multi-channel transmission and reception system further includes a local signal generator configured to generate a local signal, and
wherein the first transmit channel includes: an up-mixer configured to perform frequency conversion of the first time-division pulse signal based on the local signal to output a transmit converted signal; a power amplifier configured to amplify the transmit converted signal to output a transmit amplified signal; and a transmit antenna configured to radiate the first transmit signal to the outside based on the transmit amplified signal.

14 . A time-division multi-channel transmission and reception system, comprising:
a first transmit channel configured to output a first transmit signal based on a first time-division pulse signal; a second transmit channel configured to output a second transmit signal based on a second time-division pulse signal; and a time-division pulse generator configured to generate, from a single clock signal, a sequence of pulses that are sequentially distributed to different transmit channels, wherein the first time-division pulse signal and the second time-division pulse signal are respectively provided to the first transmit channel and the second transmit channel, wherein the first transmit signal and the second transmit signal are separated from each other in time.

15 . The time-division multi-channel transmission and reception system of claim 14 , wherein the time-division pulse generator includes:
a pulse generator configured to generate a pulse at a certain period based on the clock signal; and a switch configured to generate the first time-division pulse signal and the second time-division pulse signal based on the pulse.

16 . The time-division multi-channel transmission and reception system of claim 15 , wherein the pulse generator includes a delay locked loop.

17 . The time-division multi-channel transmission and reception system of claim 15 , wherein the pulse

Assignees

• Electronics & Telecommunications Res Inst

Inventors

• Han Seon-Ho
• Koo Bon Tae

Classifications

• H04J14/08 Primary

  Time-division multiplex systems · CPC title

• H04B7/0413

  MIMO systems · CPC title

• H04B1/40

  Circuits · CPC title

• H04L25/493

  by transition coding, i.e. the time-position or direction of a transition being encoded before transmission · CPC title

• H04Q11/0421 Primary

  Circuit arrangements therefor · CPC title