Method and apparatus for transmitting a gigabit-ethernet signal by a high capacity point-to-point radio system
View Patent ↗A method and apparatus are described for transmitting/receiving a Gigabit-Ethernet signal by a high capacity point-to-point radio system. The basic idea consists in transmitting a Gigabit Ethernet interface using a single frequency in a channel plan of about 56 MHz bandwidth. The invention is based on a technology that combines forward error correction, cross polarization interference cancellation (XPIC), base-band signal processing, adaptive equalization and antenna's interconnection. In the best configuration, two carrier frequencies, H and V polarized, are selected in order to have the required bandwidth for easily transporting a Gigabit Ethernet. A proper compression rate can be selected according to the available resources; in case of radio channel failure, the compression rate can be changed. Ethernet frames are mapped by a Generic Framing Procedure encapsulation protocol.
1. An apparatus for transmitting a Gigabit-Ethernet signal through a fixed high capacity point-to-point radio system, the apparatus comprising:
a user interface for receiving a Gigabit-Ethernet signal to be transmitted;
means for selecting a transmission carrier frequency and an associated bandwidth, wherein said carrier frequency is in a range of 6 to 38 GHz and said associated bandwidth is less than 1.25 GHz;
a compression rate selector for compressing the Gigabit-Ethernet signal to be transmitted by a compression rate of 1:8, thus obtaining a compressed Gigabit-Ethernet signal, wherein the step of compressing comprises selecting a compression rate according to resources which are available in the radio link;
a mapper for mapping the compressed Gigabit-Ethernet signal in a single virtual container; and
a transceiver means for transmitting the single virtual container through said fixed high capacity point-to-point radio system.
2. The apparatus of claim 1 , further comprising feedback means for selecting the compression rate in response to a signaling indicating a failure of one or more radio channels.
3. The apparatus of claim 1 , wherein said means for selecting a transmission carrier frequency selects a number of transmission carrier frequencies, wherein said number of transmission carrier frequencies depends on said compression rate.
4. An apparatus for transmitting a Gigabit-Ethernet signal through a fixed high capacity point-to-point radio system, the apparatus comprising:
a user interface for receiving a Gigabit-Ethernet signal to be transmitted;
means for selecting a transmission carrier frequency and an associated bandwidth, wherein said carrier frequency is in a range of 6 to 38 GHz and said associated bandwidth is less than 1.25 GHz;
a compression rate selector for compressing the Gigabit-Ethernet signal to be transmitted by a compression rate of 1:4, thus obtaining a compressed Gigabit-Ethernet signal, wherein the step of compressing comprises selecting a compression rate according to resources which are available in the radio link;
a mapper for mapping the compressed Gigabit-Ethernet signal in two virtual containers; and
a transceiver means for transmitting the two virtual containers through said fixed high capacity point-to-point radio system.
5. The apparatus of claim 4 , further comprising a mapper for mapping the two virtual containers into a single dual size STM-1.
6. The apparatus of claim 4 , further comprising feedback means for selecting the compression rate in response to a signaling indicating a failure of one or more radio channels.
7. The apparatus of claim 4 , wherein said means for selecting a transmission carrier frequency selects a number of transmission carrier frequencies, wherein said number of transmission carrier frequencies depends on said compression rate.
8. An apparatus for transmitting a Gigabit-Ethernet signal through a fixed high capacity point-to-point radio system, the apparatus comprising:
a user interface for receiving a Gigabit-Ethernet signal to be transmitted;
means for selecting a transmission carrier frequency and an associated bandwidth, wherein said carrier frequency is in a range of 6 to 38 GHz and said associated bandwidth is less than 1.25 GHz;
a compression rate selector for compressing the Gigabit-Ethernet signal to be transmitted by a compression rate of 1:2, thus obtaining a compressed Gigabit-Ethernet signal, wherein the step of compressing comprises selecting a compression rate according to resources which are available in the radio link;
a mapper for mapping the compressed Gigabit-Ethernet signal in four virtual containers; and
a transceiver means for transmitting the four virtual containers through said fixed high capacity point-to-point radio system,
wherein two independent data sequences, discriminated by orthogonal polarization, are transmitted on the same carrier frequency.
9. The apparatus of claim 8 , further comprising a mapper for mapping the four virtual containers into two dual size STM-1.
10. The apparatus of claim 8 , further comprising feedback means for selecting the compression rate in response to a signaling indicating a failure of one or more radio channels.
11. The apparatus of claim 8 , wherein said means for selecting a transmission carrier frequency selects a number of transmission carrier frequencies, wherein said number of transmission carrier frequencies depends on said compression rate.
12. An apparatus for transmitting a Gigabit-Ethernet signal through a fixed high capacity point-to-point radio system, the apparatus comprising:
a user interface for receiving a Gigabit-Ethernet signal to be transmitted;
means for selecting a transmission carrier frequency and an associated bandwidth, wherein said carrier frequency is in a range of 6 to 38 GHz and said associated bandwidth is less than 1.25 GHz;
a compression rate selector for compressing the Gigabit-Ethernet signal to be transmitted by a compression rate of 1:1, thus obtaining a compressed Gigabit-Ethernet signal, wherein the step of compressing comprises selecting a compression rate according to resources which are available in the radio link;
a mapper for mapping the compressed Gigabit-Ethernet signal in eight virtual containers; and
a transceiver means for transmitting the eight virtual containers through said fixed high capacity point-to-point radio system,
wherein a further carrier frequency is selected in the range of 6 to 38 GHz, and
means for transmitting two independent data sequences on the same carrier frequency, discriminated by orthogonal polarization.
13. The apparatus of claim 12 , further comprising means for mapping the eight virtual containers into four dual size STM-1.
14. The apparatus of claim 12 , further comprising feedback means for selecting the compression rate in response to a signaling indicating a failure of one or more radio channels.
15. The apparatus of claim 12 , wherein said means for selecting a transmission carrier frequency selects a number of transmission carrier frequencies, wherein said number of transmission carrier frequencies depends on said compression rate.