Real-time wireless communication method for guaranteeing quality of service in wireless personal area network
First Claim
1. A real-time wireless communication method used by a terminal, which is designated as being a coordinator from among a plurality of terminals in a wireless personal area network (WPAN), the method to guarantee quality of service, and the method comprising:
- a first superframe communication operation of allocating a first time slot for real-time wireless communication with at least one of the terminals to a first superframe, inserting information about the first time slot into a beacon and broadcasting the beacon, and exchanging data with the terminals in the first time slot of the first superframe; and
a second superframe communication operation of allocating a first time slot to a second superframe which is successive to the first superframe, additionally allocating, when data transmitted or received in the first time slot of the first superframe has an error, a second time slot to the second superframe so as to retransmit or re-receive the data having the error, inserting information about the first time slot and the second time slot into a beacon and broadcasting the beacon, and retransmitting or re-receiving the data having the error in the second time slot of the second superframe.
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Accused Products
Abstract
Provided is a real-time wireless communication method for guaranteeing quality of service in a wireless personal area network (WPAN). When real-time data transmitted in a time slot of a current superframe has an error, a terminal, which was designated as a coordinator from among a plurality of terminals in a WPAN, allocates a time slot for retransmitting the real-time data to a next superframe and retransmits the real-time data in the allocated time slot of the next superframe. Therefore, quality of a real-time communication service in a WPAN can be guaranteed.
14 Citations
20 Claims
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1. A real-time wireless communication method used by a terminal, which is designated as being a coordinator from among a plurality of terminals in a wireless personal area network (WPAN), the method to guarantee quality of service, and the method comprising:
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a first superframe communication operation of allocating a first time slot for real-time wireless communication with at least one of the terminals to a first superframe, inserting information about the first time slot into a beacon and broadcasting the beacon, and exchanging data with the terminals in the first time slot of the first superframe; and a second superframe communication operation of allocating a first time slot to a second superframe which is successive to the first superframe, additionally allocating, when data transmitted or received in the first time slot of the first superframe has an error, a second time slot to the second superframe so as to retransmit or re-receive the data having the error, inserting information about the first time slot and the second time slot into a beacon and broadcasting the beacon, and retransmitting or re-receiving the data having the error in the second time slot of the second superframe. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A real-time wireless communication method used by any one of a plurality of terminals in a WPAN, which is not designated as being a coordinator, the method to guarantee quality of service, and the method comprising:
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a first superframe communication operation of exchanging real-time data with the coordinator in a first time slot which was allocated by the coordinator to a first superframe; and a second superframe communication operation of, when real-time data transmitted or received in the first time slot of the first superframe has an error, retransmitting or re-receiving the real-time data having the error in a second time slot which was additionally allocated by the coordinator to a second superframe that is successive to the first superframe. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification