Hybrid fiber wireless communication system

• US 6,788,666 B1
• Filed: 06/13/2000
• Issued: 09/07/2004
• Est. Priority Date: 06/13/2000
• Status: Expired due to Term

• Current Assignee: T-Mobile Innovations LLC (Deutsche Telekom AG)
• Original Assignee: Sprint Communications Company LP (Deutsche Telekom AG)
• Inventors: Satapathy, Durga P., Linebarger, John William
• Primary Examiner(s): HO, DUC CHI
• Application Number:
  US09/592,698
• Time in Patent Office: 1,547 Days
• Field of Search: 370/338, 370/352, 370/395.1, 370/347, 370/225, 370/228, 370/400, 370/401, 370/467, 370/468, 370/442, 398/68, 398/58, 398/89, 398/66, 455/524, 455/500
• US Class Current: 370/338
• CPC Class Codes: H04L 12/66 Arrangements for connecting between networks having differing types of switching systems, e.g. gateways

Abstract

A communication system comprises a central service node, a plurality of base stations, and a fiber network. The central service node is configured with a baseband data system, a central RF system, and a central optical system. The base stations are each configured with a base station optical system, a base station RF system, and a base station transceiver system. The baseband data system in the central service node processes baseband data. The central RF system converts the baseband data into electronic RF data. The central optical system converts the electronic RF data into optical RF data. The fiber network exchanges the optical RF data between the central service node and the base stations. The base station optical system converts the optical RF data into the electronic RF data. The base station RF system modifies frequencies of the electronic RF data. The base station transceiver system converts the electronic RF data into wireless RF data and exchanges the wireless RF data over an air interface with customer premise equipment.

Claims

1. A communication system comprising:

a central service node configured with baseband data system, central Radio Frequency (RF) system, and central optical system, wherein the baseband data system is configured to process baseband data, the central RF system is configured to convert the baseband data into electronic RF data, and the central optical system is configured to convert the electronic RF data into optical RF data;

a plurality of base stations wherein each base station is configured with base station optical system, base station RF system, and base station transceiver system, wherein the base station optical system is configured to convert the optical RF data into the electronic RF data, the base station RF system is configured to modify frequencies of the electronic RF data, and the base station transceiver system is configured to convert the electronic RF data into wireless RF data and exchange the wireless RF data over an air interface with customer premise equipment; and

a fiber network coupled to the central service node and the base stations and configured to exchange the optical RF data between the central service node and the base stations.

2. The communication system of claim 1 wherein the central optical system, the base station optical system, and the fiber network are configured to use wave division multiplexing to exchange the optical RF data.

3. The communication system of claim 2 wherein the central optical system and the base station optical system are configured to use base station wavelength assignments to exchange the optical RF data with the fiber network.

4. The communication system of claim 1 wherein the fiber network is configured with a work path and a protect path between the central service node and each base station.

5. The communication system of claim 1 wherein at lease some of the base station transceivers exchange the wireless RF data to provide Microwave Multi-point Distribution System service.

6. The communication system of claim 1 wherein at lease some of the base station transceivers exchange the wireless RF data to provide Local Multi-point Distribution System service.

7. The communication system of claim 1 wherein at lease some of the base station transceivers exchange the wireless RF data to provide Personal Communications Service.

8. The communication system of claim 1 wherein the base stations do not perform baseband data processing on the data.

9. The communication system of claim 1 wherein the central baseband system comprises an internet protocol router.

10. The communication system of claim 1 wherein the central baseband system comprises an asynchronous transfer mode switch.

11. The communication system of claim 1 wherein the central baseband system comprises a time division multiplex device.

12. The communication system of claim 1 wherein the central baseband system is configured to communicate with the Internet and with the Public Switched Telephone Network.

13. A method of operating a communication system, the method comprising:

in a central service node, processing baseband data with baseband data systems, converting the baseband data into electronic RF data, and converting the electronic RF data into optical RF data;

in a plurality of base stations, converting the optical RF data into the electronic RF data, modifying frequencies of the electronic RF data, converting the electronic RF data into wireless RF data, and exchanging the wireless RF data over an air interface with customer premise equipment; and

in a fiber network, exchanging the optical RF data between the central service node and the base stations.

14. The method of claim 13 wherein exchanging the optical RF data comprises using wave division multiplexing.

15. The method of claim 14 wherein exchanging the optical RF data comprises using base station wavelength assignments.

16. The method of claim 13 wherein exchanging the optical RF data comprises using a work path and a protect path between the central service node and each base station.

17. The method of claim 13 wherein exchanging the wireless RF data comprises providing Microwave Multi-point Distribution System service.

18. The method of claim 13 wherein exchanging the wireless RF data comprises providing Local Multi-point Distribution System service.

19. The method of claim 13 wherein exchanging the wireless RF data comprises providing Personal Communications Service.

20. The method of claim 13 wherein the base stations do not perform baseband data processing on the data.

21. The method of claim 13 wherein processing the baseband data comprises internet protocol routing.

22. The method of claim 13 wherein processing the baseband data comprises asynchronous transfer mode switching.

23. The method of claim 13 wherein processing the baseband data comprises time division multiplex processing.

24. The method of claim 13 further comprising, in the central service node, communicating with the Internet and with the Public Switched Telephone Network.