Method and apparatus for channel allocation integrity in a communication network

• US 5,349,580 A
• Filed: 12/14/1993
• Issued: 09/20/1994
• Est. Priority Date: 05/08/1992
• Status: Expired due to Term

• Current Assignee: ViaSat Incorporated
• Original Assignee: Scientific-Atlanta Incorporated (Cisco Systems, Inc.)
• Inventors: Highsmith, William, Hester, Phillip
• Primary Examiner(s): Safourek, Benedict V.
• Application Number:
  US08/165,889
• Time in Patent Office: 280 Days
• Field of Search: 455/49.1, 455/53.1, 455/54.2, 455/68, 379/58, 379/63, 370/69.1, 370/84, 370/95.1, 370/95.3, 340/825.03, 340/825.07, 340/825.54
• US Class Current: 370/461
• CPC Class Codes: H04L 47/70 Admission control; Resource allocation
• CPC Class Codes: H04L 47/72 using reservation actions during connection setup
• CPC Class Codes: H04L 47/765 triggered by the end-points
• CPC Class Codes: H04L 47/781 Centralised allocation of resources
• CPC Class Codes: H04L 47/826 Involving periods of time
• CPC Class Codes: H04W 16/06 Hybrid resource partitioning, e.g. channel borrowing
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management

Abstract

A communication network having a master and a plurality of remotes, these remotes supporting a plurality of co-services, in which access to inbound frequencies among the remotes is shared. When a need by a remote for an extraordinary amount of bandwidth is detected, a reserved spillover frequency from a set of frequencies is reserved for that remote. This bandwidth is reallocated when the need for extraordinary bandwidth for that remote has ended.

Claims

1. A communication network having a master and a plurality of remotes, said remotes supporting a plurality of co-services, the network comprising:

means for sharing access to an inbound frequency among the remotes, over which inbound frequency information signals, are transmitted from a remote to said master;

means for detecting a need by a remote for an extraordinary amount of bandwidth in excess of that currently being provided by said inbound frequency for the transmission of information signals;

means for allocating to said remote a reserved amount of bandwidth in response to the detection of said need for extraordinary bandwidth for said remote; and

means for informing each of the remotes of the network of the allocations of the bandwidth.

2. The network of claim 1, wherein the master includes means for periodically broadcasting a signal to the remotes which represents a current allocation, and each remote includes means for receiving and determining from this signal whether the remote has a current allocation.

3. The network of claim 1, wherein the master includes means for periodically broadcasting a signal to the remotes which represents a validation signal, and each remote includes means for receiving and determining from this validation signal whether the remote has a current allocation.

4. The network of claim 1, wherein the master includes means for detecting the occurrence of a collision on a slot of a frequency, and means for correlating the collision with a reservation table to determine that a remote is disrespecting an allocation.

5. The network of claim 4, wherein the master includes means for broadcasting a signal to a remote which represents an allocation, and wherein the master further comprises means for re-broadcasting said allocation when the master determines that a remote is disrespecting said allocation.

6. A method of providing allocation integrity to a communication network having a master and a plurality of remotes, said remotes supporting a plurality of co-services, the method comprising:

sharing access to an inbound frequency among the remotes over which inbound frequency information signals are transmitted from a remote to said master;

detecting a need by a remote for an extraordinary amount of bandwidth in excess of that currently being provided by said inbound frequency for the transmitted information signals;

allocating to said remote a reserved amount of bandwidth in response to the detection of said need for extraordinary bandwidth for said; and

informing each of the remotes of the network of the allocations of the bandwidth.

7. The method of claim 6, further comprising the step of the master periodically broadcasting a signal to the remotes which represents a current allocation, and the step of each remote receiving and determining from this signal whether the remote has a current allocation.

8. The method of claim 6, further comprising the step of the master periodically broadcasting a signal to the remotes which represents a validation signal, and the step of each remote receiving and determining from this validation signal whether the remote has a current allocation.

9. The method of claim 6, further comprising the steps of the master detecting the occurrence of a collision on a slot of a frequency, and correlating the collision with a reservation table to determine that a remote is disrespecting an allocation.

10. The method of claim 9, further comprising the steps of the master broadcasting allocations to remotes and the master re-broadcasting allocations when the master determines that a remote is disrespecting an allocation.