Patent ID: 9699726
Date: 2017-07-04
CPC Classifications: H04L,H04W,Y02D

Claim:
1. A data transmitting/receiving method performed between a master device and at least one slave device, wherein a data frame transmitted/received between the master device and the slave device is configured to include a synchronization section that defines a signal used for synchronization, a payload section that includes at least one payload, a combined information header defining a number of payloads and a payload length of each of the payloads, and a header section that defines a payload length of the payload section as a whole, the data transmitting/receiving method comprising: synchronization establishing step for establishing synchronization between the master device and the slave device based on predetermined synchronization information; receiving step for receiving the data frame after the establishment of the synchronization; payload extracting step for extracting the payloads from the received data frame; payload generating step for generating a new payload section by combining the extracted payloads with another payload extracted from another data frame received from another device or with a new payload generated by a device that receives the data frame; header generating step for generating a new synchronization section and a new header section; data frame generating step for generating a new data frame by combining the new synchronization section and the new header section that are generated with the new payload section; and transmitting step for transmitting the generated new data frame, wherein the slave device determines the master device to be connected based on a predetermined criterion which includes at least one of a distance UP to a collection meter, a distance from a device that has transmitted a scan request, and an order in which scan responses are transmitted.