Wireless communication system and communication device

• US 9,401,734 B2
• Filed: 02/25/2015
• Issued: 07/26/2016
• Est. Priority Date: 02/27/2014
• Status: Active Grant

• Current Assignee: Panasonic Intellectual Property Management Co., Ltd. (Panasonic Holdings Corporation)
• Original Assignee: Panasonic Intellectual Property Management Co., Ltd. (Panasonic Holdings Corporation)
• Inventors: Sakamoto, Satoru, Abe, Katsuya
• Primary Examiner(s): Talukder, Md
• Application Number:
  US14/631,678
• Publication Number:
  US 20150270887A1
• Time in Patent Office: 517 Days
• Field of Search: 455/500, 455/502, 455/507, 455/41.3
• US Class Current: 1/1
• CPC Class Codes: H04B 1/38 Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
• CPC Class Codes: H04B 7/15507 Relay station based processing for cell extension or control of coverage area, network planning with network coordinated processing with regard to cell extension H04W16/26; network topologies using dedicated repeater stations H04W84/047; terminal devices adapted for relaying to or from an other terminal H04W88/04

Abstract

In a wireless communication system, transmitters that transmit data, receivers that receive data, and repeaters that relay data communicate with one another in a wireless manner. The transmitter wirelessly communicates with the receiver by using first slave-device identification information for performing communication as a slave device of the receiver. The receiver wirelessly communicates with the transmitter by using first master-device identification information for performing communication as a master device of the transmitter, and wirelessly communicates with the repeater by using second slave-device identification information for performing communication as a slave device of the repeater. The repeater wirelessly communicates with the receiver by using second master-device identification information for performing communication as a master device of the receiver.

Claims

1. A wireless communication system in which transmitters that transmit data, receivers that receive data, and repeaters that relay data communicate with one another in a wireless manner by exchanging identification information items thereof,

wherein the transmitter includes a first communication unit that wirelessly communicates with the receiver by using first slave-device identification information for performing communication as a slave device of the receiver,

the receiver includes a second communication unit that wirelessly communicates with the transmitter by using first master-device identification information for performing communication as a master device of the transmitter, and that wirelessly communicates with the repeater by using second slave-device identification information for performing communication as a slave device of the repeater,

the repeater includes a third communication unit that wirelessly communicates with the receiver by using second master-device identification information for performing communication as a master device of the receiver,

the wireless communication is wireless communication of a time division system,

the receiver includes a first synchronization unit that performs synchronization with the transmitters,

the repeater includes a second synchronization unit that performs synchronization with the receivers,

the second communication unit of the receiver transmits a plurality of control data items for performing slot synchronization to the transmitters that are wirelessly connected to the receiver at one time,

the third communication unit of the repeater transmits a plurality of control data items for performing slot synchronization to the receivers that are wirelessly connected to the repeater at one time,

the second communication unit of the receiver transmits combination data in which the control data and information data are combined to the transmitter that is wirelessly connected to the receiver, and

the control data includes information on a transmission destination of the information data.

2. The wireless communication system of claim 1,

wherein the first master-device identification information includes the same master-device information as in the second master-device identification information, the first slave-device identification information includes the same slave-device information as in the second slave-device identification information, and the master-device information and the slave-device information include information that is determined by the transmitter.

3. The wireless communication system of claim 1,

wherein the second communication unit of the receiver communicates data by using a slot in a predetermined position,

the slot includes transmission slots and reception slots that are periodically repeated, and

the second communication unit of the receiver inverts a part of the transmission slots to a reception slot, or inverts a part of the reception slots to a transmission slot, and communicates data with the repeater by using the inverted slot.

4. The wireless communication system of claim 3, further comprising:

an information processing device that performs broadcast communication of data with the plurality of receivers through the repeater,

wherein the second communication unit of the receiver inverts a part of the transmission slots to a reception slot for broadcast communication, and receives broadcast data from the repeater by using the inverted slot, or the third communication unit of the repeater inverts a part of the reception slots to a transmission slot for broadcast communication, and transmits broadcast data to the plurality of receivers by using the inverted slot.

5. The wireless communication system of claim 3,

wherein the second communication unit of the receiver inverts a part of the reception slots to a transmission slot, and transmits information data to the repeater by using the inverted slot, and

the third communication unit of the repeater transmits the information data to the receiver by using a transmission slot.

6. The wireless communication system of claim 1,

wherein the second communication unit of the receiver receives the data from the transmitter, and receives an instruction on a method of processing the data from the repeater, and

the receiver includes a control unit that processes the data from the transmitter in response to the instruction on the processing method.

7. The wireless communication system of claim 1,

wherein the data includes voice data or image data.

8. The wireless communication system of claim 1,

wherein one receiver is provided in a region that is spatially partitioned, and

one repeater is provided for the plurality of receivers.

9. A wireless communication system in which transmitters that transmit data, receivers that receive data, and repeaters that relay data communicate with one another in a wireless manner by exchanging identification information items thereof,

wherein the transmitter includes a first communication unit that wirelessly communicates with the receiver by using first slave-device identification information for performing communication as a slave device of the receiver,

the receiver includes a second communication unit that wirelessly communicates with the transmitter by using first master-device identification information for performing communication as a master device of the transmitter, and that wirelessly communicates with the repeater by using second slave-device identification information for performing communication as a slave device of the repeater,

the repeater includes a third communication unit that wirelessly communicates with the receiver by using second master-device identification information for performing communication as a master device of the receiver,

the second communication unit of the receiver communicates data by using a slot in a predetermined position,

the slot includes transmission slots and reception slots that are periodically repeated,

the second communication unit of the receiver inverts a part of the transmission slots to a reception slot, or inverts a part of the reception slots to a transmission slot, and communicates data with the repeater by using the inverted slot,

the third communication unit of the repeater transmits a plurality of control data items for performing slot synchronization to the receivers that are wirelessly connected to the repeater at one time, and

the second communication unit of the receiver transmits combination data in which the control data and information data are combined to the transmitter that is wirelessly connected to the receiver.

10. The wireless communication system of claim 9,

wherein the first master-device identification information includes the same master-device information as in the second master-device identification information, the first slave-device identification information includes the same slave-device information as in the second slave-device identification information, and the master-device information and the slave-device information include information that is determined by the transmitter.

11. The wireless communication system of claim 9,

wherein the wireless communication is wireless communication of a time division system,

the receiver includes a first synchronization unit that performs synchronization with the transmitters, and

the repeater includes a second synchronization unit that performs synchronization with the receivers.

12. The wireless communication system of claim 11, wherein the second communication unit of the receiver transmits a plurality of control data items for performing slot synchronization to the transmitters that are wirelessly connected to the receiver at one time.

13. The wireless communication system of claim 9,

wherein the second communication unit of the receiver receives the data from the transmitter, and receives an instruction on a method of processing the data from the repeater, and

the receiver includes a control unit that processes the data from the transmitter in response to the instruction on the processing method.

14. The wireless communication system of claim 9,

wherein the data includes voice data or image data.

15. The wireless communication system of claim 9,

wherein one receiver is provided in a region that is spatially partitioned, and

one repeater is provided for the plurality of receivers.