Repeater and operating method thereof

Patent metadata

Field	Value
Publication number	US-2019363864-A1
Application number	US-201916423922-A
Country	US
Kind code	A1
Filing date	May 28, 2019
Priority date	May 25, 2018
Publication date	Nov 28, 2019
Grant date	—

Abstract

An operating method of a repeater, the operating method comprises: receiving a first communication signal according to a first mobile communication standard, generating a time division duplex (TDD) switching signal based on information about a start point of the received first communication signal, and controlling switching of an uplink and a downlink of a repeater that relays a second communication signal according to a second mobile communication standard based on the generated TDD switching signal.

First claim

What is claimed is:

1 . An operating method of a repeater, the operating method comprising:
receiving a first communication signal according to a first mobile communication standard; generating a time division duplex (TDD) switching signal based on information about a start point of the received first communication signal; and controlling switching of an uplink and a downlink of a repeater that relays a second communication signal according to a second mobile communication standard based on the generated TDD switching signal.

2 . The operating method of claim 1 , further comprising:
obtaining information about the start point of the first communication signal from the received first communication signal.

3 . The operating method of claim 2 , wherein the obtaining of the information about the start point of the first communication signal comprises:
obtaining the information about the start point by using a preamble of the first communication signal or extracting a synchronization signal included in the first communication signal to obtain the information about the start point.

4 . The operating method of claim 1 , wherein the generating of the TDD switching signal comprises:
generating the TDD switching signal based on the information about the start point of the received first communication signal and TDD switching pattern information of the second communication signal.

5 . The operating method of claim 4 , wherein the TDD switching pattern information is determined based on a period of a downlink-uplink pattern, the number of consecutive downlink slots, the number of consecutive downlink symbols from a last downlink slot, the number of consecutive uplink slots from the end of the downlink-uplink pattern, and the number of consecutive uplink symbols from a first uplink slot.

6 . The operating method of claim 1 , wherein the generating of the TDD switching signal comprises:
generating the TDD switching signal by compensating a preset time delay value for the information about the start point of the received first communication signal.

7 . The operating method of claim 1 , further comprising:
determining whether or not an error has occurred in the reception of the first communication signal.

8 . The operating method of claim 7 , wherein the generating of the TDD switching signal comprises:
maintaining the TDD switching signal as the existing TDD switching signal when an error has occurred in the reception of the first communication signal.

9 . The operating method of claim 1 , wherein the first mobile communication standard is an LTE standard or an LTE-A standard, and the second mobile communication standard is a 5G standard.

10 . A repeater comprising:
a switching signal generator configured to receive a first communication signal according to a first mobile communication standard and generate a TDD switching signal based on information about a start point of the received first communication signal; and a switching circuit configured to control uplink and downlink switching of a repeater that relays a second communication signal according to a second mobile communication standard based on the generated TDD switching signal.

Assignees

• Solid Inc

Inventors

• Kim Hyunchae
• Hong Hoony

Classifications

• H04L5/14 Primary

  Two-way operation using the same type of signal, i.e. duplex · CPC title

• H04B7/15557

  Selecting relay station operation mode, e.g. between amplify and forward mode, decode and forward mode or FDD - and TDD mode · CPC title

• H04B7/15

  Active relay systems · CPC title

• H04L5/1469 Primary

  using time-sharing · CPC title

• H04L5/0096

  Indication of changes in allocation · CPC title