Data sending and receiving method

A technology for data transmission and reception, data application in data exchange network, data exchange details, data exchange through path configuration, etc. It can solve the problem of not building a master-slave relationship between devices, and achieve the reduction of times, reliable data transmission, and power suppression. The effect of consumption

Active Publication Date: 2019-01-11
NAT INST OF INFORMATION & COMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] On the other hand, the peer-to-peer network is composed of a PAN coordinator and multiple FFDs or RFDs, which is the same as the above-mentioned star network, but the difference is that all devices are peer-to-peer, that is, no master-slave is established between devices relation

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no. 1 Embodiment approach

[0039] First, the data transmission and reception method according to the first embodiment of the present invention will be described.

[0040] figure 1 It is a figure which shows the structure of the node in the data transmission and reception method of embodiment. A node 1 is configured to include a wireless unit 2 , a communication control unit 3 , and an upper layer processing unit 4 . In addition, a node is a general term for devices including FFD and RFD that perform data transmission and reception such as data distribution and relay.

[0041] The wireless unit 2 has a receiving unit 22 for receiving data via a receiving antenna 21, a transmitting unit 24 for transmitting data via a transmitting antenna 23, a main buffer 25 for buffering various data, and a buffer provided between the main buffer 25 and the transmitting unit 24. The transmission buffer 26 temporarily buffers the transmission data transmitted from the main buffer 25 to the transmission unit 24 .

[00...

no. 2 Embodiment approach

[0061] Next, a data transmission and reception method according to a second embodiment of the present invention will be described.

[0062] In the data sending and receiving method of this embodiment, also as figure 2 As shown, similarly to the first embodiment, each node 1 periodically waits for a unique waiting period and a unique interval. Furthermore, the detection method of the surrounding nodes 1 in this embodiment is performed in the same manner as the method in the above-mentioned first embodiment, and a request node and a response node are generated.

[0063] Next, the state of data transmission and reception performed after the detection of the peripheral nodes will be described below. Figure 5 It is a diagram showing the status of data transmission and reception between nodes 1 in the data transmission and reception method according to the second embodiment of the present invention.

[0064] First, the response node continuously transmits to the request node wai...

no. 3 Embodiment approach

[0071] Next, a data transmission and reception method according to a third embodiment of the present invention will be described.

[0072] In the data sending and receiving method of this embodiment, also as figure 2As shown, similarly to the first embodiment, each node 1 periodically waits for a unique waiting period and a unique interval. Furthermore, the detection method of the surrounding nodes 1 in this embodiment is performed in the same manner as the method in the above-mentioned first embodiment, and a request node and a response node are generated.

[0073] Next, the state of data transmission and reception performed after the detection of the peripheral nodes will be described below. Figure 6 It is a diagram showing the status of data transmission and reception between nodes 1 in the data transmission and reception method according to the third embodiment of the present invention.

[0074] First, the requesting node sends the waiting information request of the re...

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Abstract

The present invention provides a data transmission and reception method capable of effectively suppressing power consumption. The method of transmitting and receiving data between a plurality of nodes has the following steps performed in one node: a judging step of judging whether the data size of the data to be sent is less than or equal to a data size that can be sent; The data is divided into a plurality of intermediate data of a data size smaller than the data size that can be transmitted; the transmission data generation step is to add a division header to the plurality of intermediate data respectively to generate a plurality of transmission data; the transmission step is to transmit the plurality of transmission data to other nodes sending; and the following steps performed in other nodes: a receiving step, receiving a plurality of sending data sent from one node; a restoring step, for a plurality of sending data received, combining and restoring the sending data according to the information of the split header Send object data.

Description

technical field [0001] The invention relates to a data sending and receiving method capable of effectively suppressing power waste. Background technique [0002] The wireless personal area network is a short-distance network that can connect the equipment in the personal work environment with the equipment located around it. [0003] In recent years, in such wireless personal area networks, communication devices conforming to IEEE802.15.4 standards that are small, inexpensive, and capable of low-output digital wireless communication are used. [0004] A network conforming to the IEEE802.15.4 specification is roughly composed of two types of devices, FFD (Full Function Device: full function device) and RFD (Reduced Function Device: reduced function device). [0005] The FFD is a full-featured on-board device that has a PAN entry approval function for a new device to join its own personal area network (PAN) and a superframe definition function used for communication with othe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/06H04L12/951H04L29/08H04W84/18H04L47/43
CPCH04W28/065H04W84/18Y02D30/70H04L12/403H04W52/0216H04W52/0219H04W52/0229H04W56/00H04L12/12H04L12/44H04W68/00H04L41/12H04L67/104H04W28/04H04W52/02
Inventor 儿岛史秀原田博司
Owner NAT INST OF INFORMATION & COMM TECH
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