Method and apparatus for transporting ethernet data packets via radio frames in a wireless metropolitan area network
First Claim
1. A terminal for transporting data packets via radio frames, the terminal comprising:
- a. a data packet receiver for receiving data packets for communication over a wireless link wherein not every data packet has a same length;
b. a data packet formatting apparatus coupled to the data packet receiver, the data packet formatting apparatus for formatting the data packets according to radio frames wherein the radio frames each have a same length and wherein the data packets are formatted into the radio frames such that boundaries for the data packets are not necessarily aligned with boundaries for the radio frames; and
c. a wireless transceiver coupled to the packet formatting apparatus, the wireless transceiver for communicating the radio frames over the wireless link.
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Accused Products
Abstract
Method and apparatus for transporting Ethernet data packets via radio frames in a wireless metropolitan area network. A terminal includes a data packet receiver for receiving data packets for communication over a wireless link wherein not every data packet has a same length; a data packet formatting apparatus for formatting the data packets according to radio frames wherein the radio frames each have a same length and wherein the data packets are formatted into the radio frames such that boundaries for the data packets are not necessarily aligned with boundaries for the radio frames; and a wireless transceiver for communicating the radio frames over the wireless link. The packets can be Fast Ethernet packets. The terminal does not convert the Ethernet data packets into a telephony communication protocol or into an asynchronous transfer mode (ATM) protocol prior to communication of the radio frames over the wireless link. The terminal can include a data packet synchronizer for synchronizing the data packets to a clock signal associated with the radio frames. The data packets can be time-division multiplexed into the radio frames. According to another aspect, a method of transporting Ethernet data packets via radio frames includes steps of receiving Ethernet data packets wherein each data packet includes a preamble and a start-of-frame delimiter, stripping off the preamble and start-of-frame delimiter, formatting the packet data according to radio frames, including appending a synch field to the packet data, and appending a length field to the packet data.
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Citations
59 Claims
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1. A terminal for transporting data packets via radio frames, the terminal comprising:
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a. a data packet receiver for receiving data packets for communication over a wireless link wherein not every data packet has a same length;
b. a data packet formatting apparatus coupled to the data packet receiver, the data packet formatting apparatus for formatting the data packets according to radio frames wherein the radio frames each have a same length and wherein the data packets are formatted into the radio frames such that boundaries for the data packets are not necessarily aligned with boundaries for the radio frames; and
c. a wireless transceiver coupled to the packet formatting apparatus, the wireless transceiver for communicating the radio frames over the wireless link. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of transporting data packets via radio frames wherein the method comprises steps of:
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a. receiving data packets wherein not every data packet has a same length;
b. formatting the data packets according to radio frames wherein the radio frames each have a same length and wherein the data packets are formatted into the radio frames such that boundaries for the data packets are not necessarily aligned with boundaries for the radio frames; and
c. communicating the radio frames over the wireless link. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A method of transporting data packets via radio frames wherein the method comprises steps of:
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a. receiving data packets wherein not every data packet has a same length and wherein each data packet is separated by an inter-packet gap;
b. formatting the data packets according to radio frames wherein each radio frame includes a data field having a predetermined length and wherein the data packets are formatted into each data filed one after the other wherein each data packet is separated from its neighbors by a code representative of an inter-packet gap and wherein boundaries fro the data packets are not necessarily aligned with boundaries for the radio frames such that the data packets are time-division multiplexed into the radio frames; and
c. communicating the radio frames over the wireless link. - View Dependent Claims (27, 28, 29, 30)
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31. A method of transporting Fast Ethernet data packets via radio frames over a wireless link, the method comprising steps of
a. receiving Fast Ethernet data packets into a receiver from a first local area network via a twisted pair of wires; -
b. formatting the data packets according to radio frames wherein the radio frames each have a same length and wherein the Fast Ethernet data packets are formatted into radio frames such that boundaries for the Fast Ethernet packets are not necessarily aligned with boundaries for the radio frames;
c. communicating the radio frames over the wireless link;
d. receiving the radio frames from the wireless link;
e. reconstructing the Fast Ethernet data packets from received radio frames; and
f. communicating reconstructed Fast Ethernet data packets to a second local area network. - View Dependent Claims (32, 33, 34, 35)
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36. A terminal for transporting data packets via radio frames, the terminal comprising:
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a. a data packet receiver for receiving data packets for communication over a wireless link wherein not every data packet has a same length;
b. a packet formatting apparatus coupled to the data packet receiver, the packet formatting apparatus for formatting the data packets according to radio frames wherein the packet formatting apparatus comprises;
c. means for performing forward error correction on data from the data packets thereby forming error corrected data;
d. means for inserting the error corrected data into radio frames; and
e. means for randomizing data within the radio frames; and
f. a wireless transceiver coupled to the packet formatting apparatus, the wireless transceiver for communicating the radio frames over the wireless link. - View Dependent Claims (37, 38, 39, 40, 41, 42, 43, 44)
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45. A method of transporting Ethernet data packets via radio frames, the method comprising steps of:
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a. receiving Ethernet data packets wherein each data packet includes a preamble and a start-of-frame delimiter;
b. stripping off the preamble and start-of-frame delimiter;
c. formatting the packet data according to radio frames wherein the step of formatting includes steps of;
i. appending a synch field to the packet data; and
ii. appending a length field to the packet data. - View Dependent Claims (46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59)
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Specification