Bandwidth allocation and management system for cellular networks

• US 20100266287A1
• Filed: 04/16/2010
• Published: 10/21/2010
• Est. Priority Date: 04/16/2009
• Status: Active Grant

• Current Assignee: Trex Enterprises Corporation
• Original Assignee: Trex Enterprises Corporation
• Inventors: Fein, Robert A., Adhikari, Prasanna, Tigli, Hus
• Granted Patent: US 8,422,885 B2
• Time in Patent Office: Days
• US Class Current: 398/116
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 88/085 Access point devices with remote components

Abstract

A bandwidth allocation and management system for cellular communication networks. The system includes at least one master optical switch and processing station, a number of aggregation base stations that are in optical fiber communication with a master optical switching and processing station and a number of auxiliary cellular base stations surrounded by and supported by each aggregation base station. In preferred embodiments a plurality of sets of three neighboring base stations are each adapted to receive and process RF signals transmitted by cellular users within a broadcast and receive range and transmit the RF signals received, by each of the three neighborhood base stations, from each of the cellular users in analog form to the master optical switching and processing station. The master optical switching and processing station processes the three RF signals and combine, for each user within the broadcast and receive range, the three RF signals and to convert the combined RF signals to digital form for transmission to other users in the communication network.

Claims

1. A bandwidth allocation and management system for cellular communication networks comprising:

A) at least one master optical switching and processing station, each of said at least one master optical switching and processing stations comprising a plurality of service modules wherein each service module is equipped with functional modules, each designed to provide wireless network functions comprising processing functions, multiple access functions and network functions,

B) a number of aggregation base stations that are in optical fiber communication with the master optical switching and processing station and

C) a plurality of auxiliary cellular base stations surrounded by, in communication with and supported by each aggregation base station.

2. The bandwidth allocation and management system as in claim 1 wherein a plurality of sets of three neighboring base stations are each adapted to:

i) receive and process RF signals transmitted by cellular users within a broadcast and receive range of each of the three neighboring base stations and

ii) transmit the RF signals received, by each of the three neighborhood base stations, from each of the cellular users in analog form to the master optical switching and processing station and

wherein the master optical switching and processing station is adapted to process the three RF signals and combine, for each user within the broadcast and receive range, the three RF signals and to convert the combined RF signals to digital form for transmission to other users in the communication network.

3. The bandwidth allocation and management system as in claim 1 wherein the bandwidth allocation and management system comprises at least a plurality of millimeter wave communication links adapted to provide millimeter wave communication between each of at least a plurality of the aggregation base stations and one or more auxiliary base stations.

4. The bandwidth allocation and management system as in claim 2 wherein the bandwidth allocation and management system comprises at least a plurality of millimeter wave communication links adapted to provide millimeter wave communication between each of at least a plurality of the aggregation base stations and one or more auxiliary base stations.

5. The bandwidth allocation and management system as in claim 3 wherein at least a plurality of sets of at least three neighboring base stations are each adapted to:

i) receive and process RF signals transmitted by cellular users within the broadcast and receive range of each of the at least three neighboring base stations and

ii) transmit the three RF signals from each of the cellular users in analog form to the master optical switching and processing station and

wherein the master optical switching and processing station is adapted to process the at least three RF signals and combine the three RF signals and to convert the RF signals to digital form for transmission to other users in the communication network.

6. The bandwidth allocation and management system as in claim 3 wherein each of a plurality of the auxiliary cellular base station:

A) is in wireless communication through a number antennas (such as 1, 2 or

     3) with users in its cell at a similar number of narrow cellular frequency ranges within a broader frequency range below 11 MHz and

B) is also in wireless millimeter wave communication with one of the aggregation base stations at a millimeter wave frequency in excess of 70 GHz.

7. The bandwidth allocation and management system as in claim 3 wherein each of at least a plurality of the auxiliary cellular base stations is in wireless communication through one or more antennas with users in its cell at a similar number of narrow cellular frequency ranges within a broader frequency range below 11 MHz.

8. The bandwidth allocation and management system as in claim 3 wherein each of at least a plurality of the auxiliary base stations comprises a plurality of digital baseband to carrier frequency converters and

A) is equipped with a multiplexing/de-multiplexing switch for separating streams of digital data incoming over millimeter radio into individual streams of packetized digital baseband data directed to one of the digital baseband to carrier frequency converters for extraction of the baseband signal from the stream of packetized digital-baseband data by means of analog-to-digital conversion and for up-conversion of the baseband signal to carrier frequency for transmission over a cellular radio frequency;

and

B) is also equipped with a carrier frequency to digital baseband converter for conversion of signals received from cellular system users to a packetized digital-baseband signal by means of down-conversion to baseband signal and analog-to-digital conversion of the baseband signal.

9. The bandwidth allocation and management system as in claim 8 wherein at least a plurality of said auxiliary base stations are auxiliary-relay base stations and are equipped with switching and relaying equipment for multiplexing and relaying packetized digital-baseband data to and from other auxiliary base stations.

10. The bandwidth allocation and management system as in claim 9 and further comprising millimeter wave communication links adapted to provide communication among at least a plurality of the aggregation base stations, the auxiliary-relay base stations and auxiliary cellular base stations.

11. The bandwidth allocation and management system as in claim 3 wherein at least a plurality of the aggregation base stations are equipped with at least one service module having an interface module adapted to interface with a plurality of millimeter wave radios installed at the aggregation base station and linked to a plurality of auxiliary base stations, said service module being adapted to aggregate digital baseband signals from all the plurality of auxiliary base stations.

12. The bandwidth allocation and management system as in claim 11 wherein each service module is also equipped with a switching module for multiplexing and de-multiplexing of packetized digital-baseband data and to switch the packetized digital-baseband data among baseband processing functional modules, millimeter wave radios and optical signal interfaces.

13. The bandwidth allocation and management system as in claim 3 wherein the bandwidth allocation and management system comprises a plurality of optical fiber links adapted to provide communication between a plurality of the aggregation base stations and the at least one master optical switching and processing station.

14. The bandwidth allocation and management system as in claim 1 wherein the master optical switching and processing station is equipped with a bank of service modules adapted to provide optical signal switching via all optical switches.

15. The bandwidth allocation and management system as in claim 14 wherein the master optical switching and processing station is also equipped with a master controller in control of all of the service modules in the bank of service modules in the aggregation base stations and the service modules in the master station.

16. The bandwidth allocation and management system as in claim 15 wherein the master controller is adapted to efficiently utilize all of the service modules in the system so that in the event the service modules in one or more aggregation base stations are on the verge of becoming over-loaded with processing of digital-baseband signal, the master system controller can transfer service functions from those service modules to the service modules in the master optical switching and processing station or to service modules in other aggregation base stations.

17. The bandwidth allocation and management system as in claim 2 wherein all of said plurality of sets of three neighboring base stations are adapted to operate in the same frequency range except periodically for very short periods of time during which periods the neighboring stations transmit at nine different frequencies to avoid interference in user devices located in or near boundary regions.