Allocation of signal-to-noise ratio margin in multi-carrier systems
View Patent ↗Allocation of different signal-to-noise margins to different carriers in a multi-carrier system is described. A preferred embodiment comprises assigning signal-to-noise ratio (SNR) margins to carriers in a multi-carrier system, comprises assigning a first SNR margin to a first data service based upon a first service characteristic, assigning a second SNR margin to a second data service based upon a second service characteristic, transmitting data associated with the first data service using the first signal-to-noise margin, and transmitting data associated with the second data service using the second signal-to-noise margin.
1. A method for assigning signal-to-noise ratio (SNR) margins to carriers defined by a multi-carrier telecommunication protocol, comprising:
assigning a first SNR margin to a first group of carriers of the multi-carrier telecommunication protocol corresponding to voice data;
assigning a second SNR margin to a second group of carriers of the multi-carrier telecommunication protocol corresponding to non-voice data;
modulating the first and second groups of carriers for transmission over a telecommunication network as prescribed by the telecommunication protocol; and
transmitting the first and second group of carriers.
2. The method of claim 1 , wherein the first group of carriers and the second group of carriers are transmitted on the same physical medium.
3. The method of claim 2 , wherein the physical medium is a wireline connection.
4. The method of claim 2 , wherein the physical medium is a wireless connection.
5. The method of claim 1 , wherein the first group of carriers are assigned to a first set of sequential frequencies, and the second group of carriers are assigned to a second set of sequential frequencies.
6. The method of claim 1 , wherein the first group of carriers and the second group of carriers are assigned to non-subsequent frequencies.
7. The method of claim 1 , wherein the first and second groups of carriers are modulated using a trellis coder.
8. The method of claim 1 , wherein the first SNR margin is higher than the second SNR margin.
9. The method according to claim 1 , wherein the first group of carriers and the second group of carriers are assigned to non-subsequent frequencies and wherein the carriers are reordered for trellis code modulation.
10. The method of claim 1 , wherein the multi-carrier system is an Asymmetric Digital Subscriber Line (ADSL) system or a Very high speed Digital Subscriber Line (VDSL) system.
11. An apparatus for assigning signal-to-noise ratio (SNR) margins to carriers defined by a multi-carrier telecommunication protocol, comprising:
a transceiver that is configured to assign a first SNR margin to a first group of carriers of the multi-carrier telecommunication protocol corresponding to voice data;
wherein the transceiver is configured to assign a second SNR margin to a second group of carriers of the multi-carrier telecommunication protocol corresponding to non-voice data;
a modulator that is configured to modulate the first and second groups of carriers for transmission over a telecommunication network as prescribed by the telecommunication protocol.
12. The apparatus of claim 11 , wherein the first group of carriers and the second group of carriers are transmitted on the same physical medium.
13. The apparatus of claim 12 , wherein the physical medium is a wireline connection.
14. The apparatus of claim 12 , wherein the physical medium is a wireless connection.
15. The apparatus of claim 11 , wherein the first group of carriers are assigned to a first set of sequential frequencies, and the second group of carriers are assigned to a second set of sequential frequencies.
16. The apparatus of claim 11 , wherein the first group of carriers and the second group of carriers are assigned to non-subsequent frequencies.
17. The apparatus of claim 11 , wherein the first and second groups of carriers are modulated using a trellis coder.
18. The apparatus of claim 11 , wherein the first SNR margin is higher than the second SNR margin.
19. The apparatus according to claim 11 , wherein the first group of carriers and the second group of carriers are assigned to non-subsequent frequencies and wherein the carriers are reordered for trellis code modulation.
20. The apparatus of claim 11 , wherein the multi-carrier system is an Asymmetric Digital Subscriber Line (ADSL) system or a Very high speed Digital Subscriber Line (VDSL) system.