Transmission scheme for communication systems

1. A transmission scheme for at least one transceiver pair, each transceiver pair including a first transceiver and a second transceiver, each transceiver including a transmitter and a receiver, said at least one transceiver pair defining a downlink between the transmitter of a first transceiver and the receiver of a second transceiver and further defining an uplink between the transmitter of said second transceiver and the receiver of said first transceiver, each transceiver pair transmitting data over a data communication frame, said transmission scheme including:

determining a respective active set for each one of said at least one transceiver pairs, said active set including a combination of selected logical allocation units, each said logical allocation unit being defined as a unique combination of a time slot in said data communication frame and a frequency band, each selected logical allocation unit relates to at least one of said downlink only and said uplink,

wherein said active set is determined to meet at least one of power dissipation requirements and temperature requirements, and

where said active set is determined from time to time to control said at least one of power dissipation requirements and temperature requirements at least of said first transceiver.

2. The transmission scheme according to claim 1 , wherein said power dissipation requirements include a power dissipation threshold value, and

wherein said temperature requirements include a temperature threshold value.

3. The transmission scheme according to claim 1 , wherein the time slot and frequency band combination of each one of said logical allocation unit is associated with a power dissipation value; and

wherein a cumulative amount of the respective power dissipation values of the logical allocation units included in at least one of said active sets, does not exceed a power threshold value for at least one of said uplink and downlink.

4. The transmission scheme according to claim 1 , wherein said at least one of power dissipation requirements and temperature requirements is determined according to a temperature value relating to at least one of said transceivers.

5. The transmission scheme according to claim 1 , wherein for a plurality of said transceiver pairs, each said respective active set being determined to be directed toward avoiding crosstalk between the transmissions of said transceivers, and

wherein each transceiver pair is associated with a mutually exclusive active set.

6. The transmission scheme according to claim 1 , wherein at least two of said transceiver pairs are allocated at least one common logical allocation unit.

7. The transmission scheme according to claim 1 , wherein each selected logical allocation unit being further for both downlink and uplink.

8. The transmission scheme according to claim 1 , wherein said active set is determined such that said transmitter of said at least one of said first transceivers terminates the transmission thereof at a respective transmission cutoff time.

9. The transmission scheme according to claim 1 , wherein said active set is determined such that a group of transmitters of said at least one transceiver pair are associated with the same respective transmission cutoff time.

10. The transmission scheme according to claim 1 , wherein, when at least one of uplink data and downlink data to be transmitted by at least one of said at least one transceiver pair for a given frame is less than a threshold percentage of the respective said uplink and said downlink logical allocation units in a transmission frame, respective ones of at least downlink logical allocation units and uplink logical allocation units are not allocated for said transceiver pair.

11. The transmission scheme according to claim 1 including:

partitioning said data communication frame into three mutually exclusive time zones, said time zones including an downlink zone, followed by a downlink\uplink zone, followed by an uplink zone, said downlink zone being for downlink transmission by said transmitter of said first transceiver, said uplink zone being for uplink transmission by said transmitter of said second transceiver, said downlink\uplink zone being for at least one of allocating additional time slots to downlink transmission by said transmitter of said first transceiver and allocating additional time slots to uplink transmission by said transmitter of said second transceiver.

12. The transmission scheme according to claim 11 , wherein said second transceiver detects an end of said downlink transmission of said first transceiver prior to transmitting.

13. The transmission scheme according to claim 11 , wherein said first transceiver transmits to said second transceiver at least one of a duration of said downlink transmission and a duration of said uplink transmission.

14. A communications system comprising:

a distribution point at least including:

at least one distribution point transceiver, each of said at least one transceiver including a respective distribution point transmitter and a respective distribution point receiver, said distribution point transmitter transmitting data over a data communication frame;

a dynamic bandwidth allocator, coupled with said plurality of distribution point transceivers, said dynamic bandwidth allocator dynamically determining a transmission scheme; and

a distribution point controller, coupled with each of said at least one distribution point transceiver and with said dynamic bandwidth allocator, said distribution point controller providing said distribution point transceivers and said dynamic bandwidth allocator with extrinsic parameters relating thereto, said extrinsic parameters at least including a guaranteed bit rate specified for each user; and

at least one customer premise equipment at least including:

a customer premise equipment transceiver, said customer premise equipment transceiver including a customer premise equipment transmitter and a customer premise equipment receiver, said customer premise equipment transmitter transmitting data over said data communication frame; and

a customer premise equipment controller, coupled with said customer premise equipment transceiver, said customer premise equipment providing said customer premise equipment transceivers with extrinsic parameters relating to the operation thereof, said extrinsic parameters at least include a guaranteed uplink bit rate associated with the respective customer premise equipment,

wherein said the transmitter of said distribution point transceiver and the receiver of said customer premise equipment transceiver define said downlink, and

wherein, said the transmitter of said customer premise equipment transceiver and the receiver of said distribution point transceiver define said uplink,

wherein said transmission scheme includes determining a respective active set for each one of said at least one transceiver pairs, said active set including a combination of selected logical allocation units, each said logical allocation unit being defined as a unique combination of a time slot in said data communication frame and a frequency band, each selected logical allocation unit being for at least one of said downlink only and said uplink,

wherein said active set is determined to meet at least one of power dissipation requirements and temperature requirements, and

where said active set is determined from time to time to control said at least one of power dissipation requirements and temperature requirements at least of said at least one distribution point transceiver.

15. The system according to claim 14 , wherein said power dissipation requirements include a power dissipation threshold value, and

wherein said temperature requirements include a temperature threshold value.

16. The system according to claim 14 , where said transmission scheme includes partitioning said frame in time into three mutually exclusive time zones, said time zones including an downlink zone, followed by a downlink\uplink zone, followed by a uplink zone, said downlink zone being for downlink transmission by said transmitter of said first transceiver, said uplink zone being for uplink transmission by said transmitter of said second transceiver, said downlink\uplink zone being for at least one of allocating additional time slots to downlink transmission by said transmitter of said first transceiver and allocating additional time slots to uplink transmission by said transmitter of said second transceiver.

17. A method for determining a transmission scheme between at least one transceiver pair, each transceiver pair including a first transceiver and a second transceiver, each transceiver including a transmitter and a receiver, said at least one transceiver pair defining a downlink between the transmitter of a first transceiver and the receiver of a second transceiver and further defining an uplink between the transmitter of said second transceiver and the receiver of said first transceiver, each transceiver pair transmitting data over a data communication frame, said data communication frame includes a plurality of time slots for transmitting data symbols, said method comprising the procedures of:

determining a combined available bandwidth for both downlink and uplink transmission;

determining the required amount of data to be downlink transmitted;

receiving uplink transmission requests from each one of the at least one second transceiver;

determining bandwidth allocation parameters for each of said at least one second transceivers;

retrieving previously allocated downlink and uplink transmission opportunities in a previous data communication frame; and

determining a transmission scheme to be used by the at least one first transceiver and by said at least one second transceiver, at least for a next transmission frame said transmission scheme includes determining a respective active set for each one of said at least one transceiver pairs, said active set including a combination of selected logical allocation units, each said logical allocation unit being defined as a unique combination of a time slot in said data communication frame and a frequency band, each selected logical allocation unit being for at least one of said downlink only and said uplink,

wherein said active set is determined to meet at least one of power dissipation requirements and temperature requirements, and

where said active set is determined from time to time to control said at least one of power dissipation requirements and temperature requirements at least of said first transceiver.

18. The method according to claim 17 , wherein said power dissipation requirements include a power dissipation threshold value, and

wherein said temperature requirements include a temperature threshold value.

19. The method according to claim 17 , where said transmission scheme includes partitioning said frame in time into three mutually exclusive time zones, said time zones including an downlink zone, followed by a downlink\uplink zone, followed by a uplink zone, said downlink zone being for downlink transmission by said transmitter of said first transceiver, said uplink zone being for uplink transmission by said transmitter of said second transceiver, said downlink\uplink zone being for at least one of allocation additional time slots to downlink transmission by said transmitter of said first transceiver and allocating additional time slots to uplink transmission by said transmitter of said second transceiver.