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Wireless broadcast transmitting and receiving equipment and communication system

A technology for wireless broadcasting and receiving equipment, applied in the field of wireless broadcasting, can solve the problems of inability to receive and process control information of wireless broadcasting receiving equipment, broadcasting transmitting equipment unable to know the status information of wireless broadcasting receiving equipment, etc., to ensure the quality of long-distance communication, The effect of reducing the transmission power and the number of retransmissions and reducing interference

Active Publication Date: 2019-10-18
NANJING ZGMICRO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The existing point-to-multipoint wireless broadcast has no feedback mechanism, so that the broadcast transmitting device cannot know the status information of the wireless broadcast receiving device, and cannot receive and process the control information of the wireless broadcast receiving device

Method used

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  • Wireless broadcast transmitting and receiving equipment and communication system
  • Wireless broadcast transmitting and receiving equipment and communication system
  • Wireless broadcast transmitting and receiving equipment and communication system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] figure 1 A schematic structural diagram of the wireless broadcast communication system in Embodiment 1 of the present application is shown.

[0051] As shown in the figure, the wireless broadcast communication system includes: one wireless broadcast transmitting device 100 and one or more wireless broadcast receiving devices 200 .

[0052] The wireless broadcast transmitting device 100 and the wireless broadcast receiving device 200 communicate during the broadcast interval and the control interval; the first period in the broadcast interval is used for the wireless broadcast transmitting device 100 to obtain data to be broadcast, and the broadcast interval The second period is used to transmit the data to be broadcast broadcast by the wireless broadcast transmitting device 100; the first period in the control interval is used to transmit the control sequence broadcast by the wireless broadcast transmitting device, and the second period in the control interval is used f...

Embodiment 2

[0100] Figure 4 A schematic diagram of the broadcast time slot structure of the wireless broadcast transmitting device in Embodiment 2 of the present application is shown.

[0101] The main difference between the embodiment of the present application and embodiment 1 is that a period for receiving feedback information sent by the wireless broadcast receiving device 200 is added in the broadcast interval.

[0102] In an implementation manner, the broadcast interval further includes a third period, and the third period within the broadcast interval is used for receiving feedback information sent by the wireless broadcast receiving device.

[0103] In order to further solve the problem that the feedback information is not effectively received when there are many wireless broadcast receiving devices, the embodiment of the present application adds a third period in the broadcast interval to transmit the feedback information of the wireless broadcast receiving devices. In this way,...

Embodiment 3

[0126] The embodiment of the present application uses audio broadcasting as an example to describe in detail.

[0127] The data to be broadcast sent by the wireless broadcast transmitting device is the audio data acquired and encoded through wireless, wired or local storage unit.

[0128] Figure 5 A schematic structural diagram of a wireless broadcast transmitting device in Embodiment 3 of the present application is shown.

[0129] As shown in the figure, the wireless broadcast transmitting device includes: an antenna, a radio frequency transceiver, a baseband data and protocol processor, an audio processor, a sound source interface, and a user interface.

[0130] The wireless broadcast transmitting device acquires audio data through the audio source interface during the first period of time in the broadcast interval. Wherein, the audio source interface may be a USB interface, an SD card, a wireless connection and the like.

[0131] The audio data is encoded by the audio p...

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PUM

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Abstract

The invention provides wireless broadcast transmitting and receiving equipment and a communication system. The wireless broadcast transmitting equipment and the wireless broadcast receiving equipmentcommunicate in a time period of a broadcast interval and a control interval, wherein a second time period in the broadcast interval is used for transmitting to-be-broadcasted data broadcasted by the wireless broadcast transmitting equipment, a first time period in the control interval is used for transmitting a control sequence sent by the wireless broadcast transmitting equipment, and a second time period in the control interval is used for transmitting feedback information sent by the wireless broadcast receiving equipment. Due to the fact that an information feedback channel and an information feedback mechanism are established in the wireless broadcast communication system, a broadcast receiving end can inform a broadcast transmitting end of local state information and control information of the broadcast receiving end, and the broadcast transmitting end can know the information in time.

Description

technical field [0001] The present application relates to the technical field of wireless broadcasting, in particular to a wireless broadcasting transmitting and receiving device and a communication system. Background technique [0002] The rapid development of radio frequency wireless connection technologies such as Bluetooth and WiFi have made wireless audio sharing a part of people's lives. For example, WiFi smart speakers centered on routers, and Bluetooth smart speakers or smart headphones centered on smartphones bring great convenience for people to share audio. In particular, point-to-multipoint wireless broadcasting enables the sharing of audio in multiple rooms. For example, the point-to-multipoint wireless audio broadcasting function realized by adopting classic Bluetooth's connectionless slave broadcast (CSB: Connectionless SlaveBroadcast) technology and low-power Bluetooth broadcast synchronous stream (BIS: Broadcast Isochronous Stream) technology. [0003] How...

Claims

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Application Information

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IPC IPC(8): H04W4/06H04W4/80H04B1/04
CPCH04W4/06H04W4/80H04B1/04Y02D30/70
Inventor 徐斌
Owner NANJING ZGMICRO CO LTD
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