Bandwidth allocation for communication systems

• US 6,859,443 B1
• Filed: 02/14/2000
• Issued: 02/22/2005
• Est. Priority Date: 02/14/2000
• Status: Expired due to Fees

• Current Assignee: ADC Telecommunications Incorporated (TE Connectivity Limited)
• Original Assignee: Teledata Networks Ltd.
• Inventors: Mushkin, Mordechai
• Primary Examiner(s): Pham, Chi
• Assistant Examiner(s): George, Keith M.
• Application Number:
  US09/503,435
• Time in Patent Office: 1,835 Days
• Field of Search: 370/319, 370/320, 370/481, 370/324, 370/442, 370/441, 370/343, 370/344, 370/329, 370/330, 375/130, 375/142, 375/150
• US Class Current: 370/324
• CPC Class Codes: H04B 7/2621 using frequency division multiple access [FDMA] H04B7/2615 takes precedence

Abstract

A method of dynamic modification of a communication link is provided. The method includes assigning a new carrier frequency to a first communication link. The method further includes adjusting the carrier frequency of the first communication link until the new carrier frequency is reached without substantially interrupting the first communication link. Further, the first communication link uses a single link during the modification.

Claims

1. A method of dynamic modification of a communication link, the method comprising:

assigning a new carrier frequency to a first communication link;

adjusting the carrier frequency of the first communication link until the new carrier frequency is reached without substantially interrupting the first communication link;

wherein the first communication link uses a single link during the modification; and

adjusting the frequency of at least one additional link;

wherein the first communication link and at least one additional link comprise a duplex link.

2. A method of dynamic modification of a communication link, the method comprising:

assigning a new carrier frequency to a first communication link;

adjusting the carrier frequency of the first communication link until the new carrier frequency is reached without substantially interrupting the first communication link;

wherein the first communication link uses a single link during the modification; and

adjusting the frequency of at least one additional link;

wherein adjusting the frequency of at least one additional link comprises incrementally adjusting the frequency of the at least one additional link.

3. A method of dynamic modification of a communication link, the method comprising:

assigning a new carrier frequency to a first communication link;

adjusting the carrier frequency of the first communication link until the new carrier frequency is reached without substantially interrupting the first communication link;

wherein the first communication link uses a single link during the modification; and

adjusting the frequency of at least one additional link, wherein adjusting the frequency of at least one additional link comprises continuously adjusting the frequency of the at least one additional link.

4. A method of synchronizing two transceivers that transmit during non-overlapping time periods, the method comprising:

during a period when a first transceiver transmits, tracking of at least one link parameter of the transmission by a second transceiver; and

adjusting at least one link parameter of the second transceiver, for transmissions by the second transceiver after the first transceiver ceases its transmission;

wherein the at least one link parameter comprises a carrier frequency of the transmission.

5. A method of synchronizing two transceivers that transmit during non-overlapping time periods, the method comprising:

during a period when a first transceiver transmits, tracking of at least one link parameter of the transmission by a second transceiver; and

adjusting at least one link parameter of the second transceiver, for transmissions by the second transceiver after the first transceiver ceases its transmission;

wherein the first transceiver captures the transmission by the second transceiver without acquisition of the frequency of transmission of the second transceiver.

6. A method of synchronizing two transceivers that transmit during non-overlapping time periods, the method comprising:

during a period when a first transceiver transmits, tracking of at least one link parameter of the transmission by a second transceiver; and

adjusting at least one link parameter of the second transceiver, for transmissions by the second transceiver after the first transceiver ceases its transmission;

wherein the at least one link parameter comprises a symbol timing.

7. A method of synchronizing two transceivers that transmit during non-overlapping time periods, the method comprising:

during a period when a first transceiver transmits, tracking of at least one link parameter of the transmission by a second transceiver; and

adjusting at least one link parameter of the second transceiver, for transmissions by the second transceiver after the first transceiver ceases its transmission;

wherein;

during a period when the second transceiver transmits, tracking of at least one link parameter of the transmission by the first transceiver; and

setting of the at least one link parameter of the first transceiver, for transmissions by the first transceiver after the second transceiver ceases its transmission.

8. The method according to claim 7, wherein the at least one link parameter for the transmission by the second transceiver is different from the at least one link parameter for the transmission by the first transceiver.

9. A method of synchronizing two transceivers that transmit during non-overlapping time periods, the method comprising:

during a period when a first transceiver transmits, tracking of at least one link parameter of the transmission by a second transceiver; and

adjusting at least one link parameter of the second transceiver, for transmissions by the second transceiver after the first transceiver ceases its transmission;

wherein the at least one link parameter is the phase of the carrier frequency of the transmission.

10. A method of providing for a wider bandwidth channel of a first transmitter in a multi-user communication system, the method comprising:

moving the carrier frequency of at least one transmitter adjacent to the first transmitter, away from the carrier frequency of the first transmitter, using a single link while moving the carrier frequency; and

increasing the bandwidth of the first transmitter to occupy at least part of the bandwidth vacated by the movement of the at least one adjacent transmitter.

11. The method according to claim 10, wherein moving the carrier frequency comprises incrementally moving the carrier frequency.

12. The method according to claim 10, wherein moving the carrier frequency comprises continuously moving the carrier frequency.

13. The method according to claim 10, and also including moving a carrier frequency of at least one additional transmitter together with the at least one adjacent transmitter to vacate bandwidth such that the at least one adjacent transmitter can move away from the carrier frequency of the first transmitter.

14. The method according to claim 13, wherein carrier frequencies of the at least one adjacent transmitter and the at least one additional transmitter move concurrently.

15. A method of providing contiguous bandwidth for a user in a multi-user communication system comprising:

moving one or more carrier frequencies of one or more communication links to create an unused, contiguous frequency band without establishing parallel links; and

filling the unused, contiguous frequency band with a new link.

16. The method according to claim 15, wherein moving one or more carrier frequencies comprises incrementally moving one or more carrier frequencies.

17. The method according to claim 15, wherein moving one or more carrier frequencies comprises continuously moving one or more carrier frequencies.