System and method for providing wireless over a passive optical network (PON)

• US 8,098,990 B2
• Filed: 08/01/2007
• Issued: 01/17/2012
• Est. Priority Date: 09/12/2006
• Status: Active Grant

• Current Assignee: NEC Corporation
• Original Assignee: NEC Corporation, NEC Laboratories America Inc (NEC Corporation)
• Inventors: Hu, Junqiang, Wang, Ting, Qian, Dayou, Luo, Yuanqiu, Suemura, Yoshihiko, Shibutani, Makoto
• Primary Examiner(s): Phan, Hanh
• Application Number:
  US11/832,075
• Publication Number:
  US 20080063397A1
• Time in Patent Office: 1,630 Days
• Field of Search: 398/66, 398/67, 398/68, 398/69, 398/70, 398/71, 398/72, 398/74, 398/75, 398/78, 398/79, 398/77, 398/98, 398/99, 398/100, 398/115, 398/116, 398/117, 398/58, 398/59, 398/89, 398/43, 398/38, 398/76, 455/3.1, 455/5.1, 455/6.1, 455/6.3, 455/4.1, 455/4.2, 455/561, 455/422, 455/562, 455/436, 725/105, 725/106, 725/121, 725/125, 725/127, 725/129, 370/352, 370/392, 370/389, 370/468, 370/432, 370/465
• US Class Current: 398/72
• CPC Class Codes: H04J 14/021 Reconfigurable arrangements, e.g. reconfigurable optical add/drop multiplexers [ROADM] or tunable optical add/drop multiplexers [TOADM]
• CPC Class Codes: H04J 14/0246 using one wavelength per ONU
• CPC Class Codes: H04J 14/025 using one wavelength per ONU, e.g. for transmissions from-ONU-to-OLT or from-ONU-to-ONU
• CPC Class Codes: H04J 14/0282 WDM tree architectures
• CPC Class Codes: H04J 14/0298 with sub-carrier multiplexing [SCM]
• CPC Class Codes: H04Q 11/0067 Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring
• CPC Class Codes: H04Q 2011/0086 Network resource allocation, dimensioning or optimisation
• CPC Class Codes: H04W 88/085 Access point devices with remote components

Abstract

A network system and method include a wireless base station integrated at a central office of a service provider. The wireless base station is configured to provide portable and fixed services to customers. A passive optical network is coupled to the wireless base station at the central office to provide a link to extend an antenna for wireless operations of the wireless base station to a remote site such that a wireless signal from the wireless base station is transmitted in parallel with a passive fiber network signal through the link.

Claims

1. A network system, comprising:

a wireless base station integrated with an optical line terminal in a single chassis at a central office of a service provider to permit resource sharing between the wireless base station and the optical line terminal, the wireless base station being connected to the optical line terminal through a chassis backplane and sharing a common modulator and receiver with the optical line terminal, wherein the wireless base station is configured to provide portable and fixed services to customers; and

a passive optical network coupled to the wireless base station at the central office to provide a link to extend an antenna for wireless operations of the wireless base station to a remote site such that a wireless signal from the wireless base station is transmitted in parallel with a passive fiber network signal through the link, wherein wavelength-division multiplexing is employed to transmit the wireless signal to an area, and sub-carrier modulation multiplexing is employed to distribute the wireless signal to receivers within the area,

wherein the wireless base station transmits gain control and frequency information to the remote site for adjusting a configuration of a power amplifier and a clock synthesizer at the remote site.

2. The network system as recited in claim 1, wherein the wireless signal is a radio frequency signal.

3. The network system as recited in claim 1, wherein the wireless signal is an intermediate frequency signal.

4. The network system as recited in claim 1, wherein the wireless signal is a digitized signal.

5. The network system as recited in claim 1, wherein the signals are enabled to travel in parallel by employing wavelength-division multiplexing.

6. The network system as recited in claim 1, wherein network system includes wireline and wireless services simultaneously.

7. The network system as recited in claim 1, wherein the wireless base station includes an indoor unit at the central office and a plurality of outdoor units disposed remotely wherein the plurality of outdoor units employ a parallel signal detection method to enable a unique sub-carrier for an individual wavelength associated with each of the plurality of outdoor units.

8. The network system as recited in claim 1, wherein the wireless base station includes an indoor unit at the central office and an outdoor unit disposed remotely from the central office, the network further comprising a distributed antenna network with a given cell.

9. The method as recited in claim 1, wherein the optical line terminal and wireless base station share a common processor.

10. A method for simultaneously providing wireline and wireless services, comprising:

integrating a wireless base station with an optical line terminal in a single chassis at a central office of a service provider to permit resource sharing between the wireless base station and the optical line terminal, the wireless base station being connected to the optical line terminal through a chassis backplane and sharing a common modulator and receiver with the optical line terminal, wherein the wireless base station is configured to provide portable and fixed services to customers;

coupling a passive optical network to the wireless base station at the central office to provide a link to extend an antenna for wireless operations of the wireless base station to a remote site; and

transmitting a wireless signal from the wireless base station in parallel with a passive fiber network signal through the link, wherein wavelength-division multiplexing is employed to transmit the wireless signal to an area, and sub-carrier modulation multiplexing is employed to distribute the wireless signal to receivers within the area,

wherein the wireless base station transmits gain control and frequency information to the remote site for adjusting a configuration of a power amplifier and a clock synthesizer at the remote site.

11. The method system as recited in claim 10, wherein transmitting a wireless signal includes transmitting a radio frequency signal.

12. The method system as recited in claim 10, wherein transmitting a wireless signal includes transmitting an intermediate frequency signal.

13. The method system as recited in claim 10, wherein transmitting a wireless signal includes transmitting a digitized signal.

14. The method as recited in claim 10, wherein transmitting includes at least one of sub-carrier modulation and wavelength-division multiplexing.

15. The method as recited in claim 10, wherein the wireless base station includes an indoor unit at the central office and a plurality of outdoor units disposed remotely, and the method further comprises employing a parallel signal detection method to enable a unique sub-carrier for an individual wavelength associated with each of the plurality of outdoor units.

16. The method as recited in claim 10, wherein the wireless base station includes an indoor unit at the central office and an outdoor unit disposed remotely from the central office, and the method further comprises distributing antenna modules within a given network cell.