Method and system for communication between coordinator-based wireless networks
First Claim
1. A method for communication between networks, the method comprising:
- notifying a first coordinator of a first coordinator-based wireless network of a presence of a first relay device within the first coordinator-based wireless network;
sending information about the first relay device from the first coordinator to wireless network devices within the first coordinator-based wireless network; and
sending a data frame carrying data to be transmitted to a second wireless network device belonging to a second coordinator-based wireless network from a first wireless network device that receives the information about the first relay device,wherein the data frame is obtained by performing first encapsulation on a subframe specifying a physical address of the first wireless network device and a physical address of the second wireless network device as a first source address and a first destination address, respectively, the data frame specifying a logical address of the first wireless network device and a logical address of the first relay device as a second source address and a second destination address, respectively.
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Accused Products
Abstract
A method and system for communication between wireless networks connected through a wired network in a coordinator-based wireless network environment are provided. According to the method for communication, a wired/wireless relay device that attempts to associate with an initial coordinator-based wireless network notifies a coordinator of information indicating that it acts as a relay device. The coordinator sends the information to wireless network devices within an appropriate coordinator-based wireless network, and each of the wireless network devices transmits data to be transmitted to a device within a different coordinator-based wireless network to the relay device. When the relay device sends the data to a relay device in a coordinator-based wireless network a destination wireless network device belongs to through a wired network, the relay device in the same coordinator-based wireless network as the destination wireless network device sends the data to the destination wireless network device.
43 Citations
22 Claims
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1. A method for communication between networks, the method comprising:
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notifying a first coordinator of a first coordinator-based wireless network of a presence of a first relay device within the first coordinator-based wireless network; sending information about the first relay device from the first coordinator to wireless network devices within the first coordinator-based wireless network; and sending a data frame carrying data to be transmitted to a second wireless network device belonging to a second coordinator-based wireless network from a first wireless network device that receives the information about the first relay device, wherein the data frame is obtained by performing first encapsulation on a subframe specifying a physical address of the first wireless network device and a physical address of the second wireless network device as a first source address and a first destination address, respectively, the data frame specifying a logical address of the first wireless network device and a logical address of the first relay device as a second source address and a second destination address, respectively. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for communication between networks, comprising:
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receiving, at a first wireless network device within a first coordinator-based wireless network, an information frame carrying information about a relay device within the first coordinator-based wireless network from a first coordinator of the first coordinator-based wireless network; and sending a data frame containing data to be transmitted from the first wireless network device to a second wireless network device within a second coordinator-based wireless network to the relay device, wherein the data frame is obtained by performing first encapsulation on a subframe specifying a physical address of the first wireless network device and a physical address of the second wireless network device as a first source address and a first destination address, respectively, the data frame specifying a logical address of the first wireless network device and a logical address of the relay device as a second source address and a second destination address, respectively. - View Dependent Claims (11)
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12. A method for communication between networks, the method comprising:
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notifying a first coordinator of a first coordinator-based wireless network of a presence a first relay device within the first coordinator-based wireless network; and receiving a data frame carrying data to be transmitted from the first wireless network device to a second wireless network device in a second coordinator-based wireless network from the first wireless network device that receives an information frame containing information about the first relay device from the first coordinator, wherein the data frame is obtained by performing first encapsulation on a subframe specifying a physical address of the first wireless network device and a physical address of the second wireless network device as first source address and first destination address, respectively, the data frame specifying a logical address of the first wireless network device and a logical address of the first relay device as a second source address and a second destination address, respectively. - View Dependent Claims (13, 14)
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15. A method for communication between networks, comprising:
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receiving, at a second relay device within a second coordinator-based wireless network, a frame from a first relay device within a first coordinator-based wireless network; and encapsulating the frame received at the second relay device and transmitting a resulting frame to a second wireless network device within the second coordinator-based wireless network, wherein the frame received at the second relay device is obtained by encapsulating a subframe specifying a physical address of the first wireless network device and a physical address of the second wireless network device as a first source address and a first destination address, respectively, the frame specifying a backbone physical address of the first relay device and a backbone physical address of the second relay device as a second source address and a second destination address, respectively, wherein the encapsulating the frame comprises decapsulating the frame and encapsulating a resulting frame specifying a logical address of the second relay device and a logical address of the second wireless network device as third source address and third destination address, respectively.
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16. A wireless network device within a first coordinator-based wireless network transmitting data to another wireless network device within a second coordinator-based wireless network device, the wireless network device comprising:
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a control unit which generates a data frame containing the data to be transmitted; and a transceiving unit which transmits the data frame, wherein the data frame is obtained by encapsulating a subframe specifying a physical address of the wireless network device and a physical address of the other wireless network device of the second coordinator-based wireless network device as a first source address and a first destination address, respectively, the data frame specifying a logical address of the wireless network device and a logical address of a relay device within the first coordinator-based wireless network as a second source address and a second destination address, respectively. - View Dependent Claims (17)
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18. A relay device within a first coordinator-based wireless network, which connects a wired network to a wireless network, the relay device comprising:
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a wireless network interface unit which receives a data frame to be transmitted to a second wireless network device within a second coordinator-based wireless network from a first wireless network device within the first coordinator-based wireless network; a control unit which encapsulates the data frame into a frame format supported by the wired network; and a wired network interface unit which transmits the data frame encapsulated by the control unit to the wired network, wherein the data frame is obtained by encapsulating a subframe specifying a physical address of the first wireless network device and a physical address of the second wireless network device as a first source address and a first destination address, respectively, the data frame specifying a logical address of the first wireless network device and a logical address of the relay device as a second source address and a second destination address, respectively, wherein the control unit encapsulates the data frame by decapsulating the data frame and encapsulating a resulting frame specifying a backbone physical address of the relay device within the first coordinator-based wireless network and a backbone physical address of the relay device of the second wireless network devices as a third source address and a third destination address, respectively. - View Dependent Claims (19, 20, 21)
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22. A relay device within a second coordinator-based wireless network, which connects a wired network to a wireless network, the relay device comprising:
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a wired network interface unit which receives a data frame to be transmitted to a second wireless network device within the second coordinator-based wireless network from a first wireless network device within a first coordinator-based wireless network; a control unit which encapsulates the data frame into a frame format supported by the second coordinator-based wireless network; and a wireless network interface unit which transmits the data frame encapsulated by the control unit to the second wireless network device, wherein the data frame is obtained by encapsulating a subframe specifying a physical address of the first wireless network device and a physical address of the second wireless network device as a first source address and a first destination address, respectively, the data frame specifying a backbone physical address of a relay device within the first coordinator-based wireless network and a backbone physical address of a relay device within the second coordinator-based wireless network as a second source address and a second destination address, respectively, wherein the control unit encapsulates the data frame by decapsulating the received frame and encapsulating a resulting frame specifying a physical address of the relay device within the second coordinator-based wireless network and a physical address of the second wireless network device as a third source address and a third destination address, respectively.
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Specification