IP Library Granted Patent US 9,955,361
Granted Patent B2
US 9,955,361 · App. 14/189,044 · Granted Apr 24, 2018

Method and system for WI-FI data transmission

Inventors: Sasa Trajkovic (Burnaby, CA); Shawn Patrick Stapleton (Burnaby, CA); Qianqi Zhuang (Richmond, CA)
Assignee: Dali Systems Co., Ltd.
H04W16/26H04B10/25754H04W84/12H04W88/085
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Quick Facts
Patent No.
US 9,955,361
App. No.
14/189,044
Granted
Apr 24, 2018
Kind
B2
Abstract

A system for networking Wi-Fi Access Points in a Distributed Antenna System includes a plurality of Digital Access Units (DAUs). The plurality of DAUs are coupled and operable to route signals between the plurality of DAUs. The system also includes a plurality of Digital Remote Units (DRUs) coupled to the plurality of DAUs and operable to transport signals between DRUs and DAUs and a plurality of DAU ports and DRU ports. The system further includes a Framer/Deframer, wherein the cellular payload data is separated from the IP data and a network switch. The IP data from a plurality of DAU and DRU ports are buffered and routed to a plurality of DAU and DRU ports. Furthermore, the system includes a plurality of Wi-Fi access points coupled via a mesh network to Wi-Fi access points connected to a plurality of DRUs.

Claims (15)

1. A system for transmitting data in a digital Distributed Antenna System, the system comprising:

a plurality of Digital Access Units (DAUs), wherein the plurality of DAUs are coupled and operable to route signals between the plurality of DAUs, wherein at least one DAU of the plurality of DAUs includes a plurality of optical ports operable to transmit/receive cellular payload data and an Ethernet port operable to transmit/receive IP data, a first external port operable to transmit/receive cellular payload data to/from a first base transceiver station (BTS) and a second external port operable to transmit/receive cellular payload data to/from a second BTS;

a plurality of Digital Remote Units (DRUs) coupled to the plurality of DAUs and operable to transport signals between the plurality of DRUs and the plurality of DAUs;

a Framer included in the at least one DAU and operable to frame the cellular payload data with the IP data;

a Deframer included in the at least one DAU and operable to separate the cellular payload data from the IP data;

a router included in the at least one DAU operable to receive cellular payload data from at least one optical port of the plurality of optical ports and operable to select either the first external port or the second external port to receive cellular payload data from the at least one optical port of the plurality of optical ports; and

a switch included in the at least one DAU and coupled to the Framer, wherein the cellular payload data and IP data are collated and routed by the switch to the framer, and wherein the cellular payload data and the IP data are allocated, by the switch, to one or more of the plurality of optical ports of the at least one DAU.

2. The system of claim 1 wherein the plurality of DAUs are coupled via at least one of Ethernet cable, Optical Fiber, Microwave Line of Sight Link, Wireless Link, or Satellite Link.

3. The system of claim 1 wherein the plurality of DAUs are coupled to the plurality of DRUs via at least one of Ethernet cable, Optical Fiber, Microwave Line of Sight Link, Wireless Link, or Satellite Link.

4. The system of claim 1 wherein the plurality of DRUs are connected in a daisy chain configuration.

5. The system of claim 1 wherein the plurality of DRUs are connected to the at least one DAU in a star configuration.

6. The system of claim 1 wherein the plurality of DRUs are connected in a loop to the at least one DAU.

7. The system of claim 1 further comprising a plurality of Wi-Fi gateways, each Wi-Fi gateway coupled to a corresponding one of the plurality of DRUs.

8. The system of claim 7 wherein each of the plurality of Wi-Fi gateways is integrated into the corresponding one of the plurality of DRUs.

9. The system of claim 7 further comprising a plurality of sets of Wi-Fi access points, each set being coupled via a mesh network to a corresponding one of the plurality of Wi-Fi gateways.

Assignments (3)
SECURITY INTEREST Recorded Jul 24, 2019
From: DALI WIRELESS, INC.
To: DALI RESEARCH (NORTHWIND) LLC
Reel/Frame 049846/0055 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 11, 2017
From: STAPLETON, SHAWN PATRICK
To: DALI SYSTEMS CO. LTD.
Reel/Frame 044358/0575 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 13, 2014
From: TRAJKOVIC, SASA; ZHUANG, QIANQI
To: DALI SYSTEMS CO. LTD.
Reel/Frame 032882/0990 →
Continuity (2)
Provisional Application 61769539 · Feb 26, 2013
Related Publication 20140314061A1 · Oct 23, 2014