Noise reduction techniques and apparatus for enhancing wireless data network telephony

• US 6,381,222 B1
• Filed: 07/13/1999
• Issued: 04/30/2002
• Est. Priority Date: 04/28/1998
• Status: Expired due to Term

• Current Assignee: Genesys Telecommunications Laboratories Incorporated (Genesys Cloud Services Incorporated)
• Original Assignee: Genesys Telecommunications Laboratories Incorporated (Genesys Cloud Services Incorporated)
• Inventors: Kikinis, Dan
• Primary Examiner(s): HSU, ALPUS
• Application Number:
  US09/352,495
• Time in Patent Office: 1,022 Days
• Field of Search: 370/278, 370/280, 370/328, 370/389, 370/338, 370/341, 370/349, 370/401, 370/409, 370/468, 370/477, 455/445, 455/450, 455/451, 455/452, 455/453, 455/509, 455/517
• US Class Current: 370/280
• CPC Class Codes: H04L 65/80 Responding to QoS
• CPC Class Codes: H04M 1/026 Details of the structure or mounting of specific components
• CPC Class Codes: H04M 1/2535 adapted for voice communication over an Internet Protocol [IP] network Voice over Internet Protocol (VoIP) network equipment and services H04M7/006; implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP] H04L69/16
• CPC Class Codes: H04M 2201/40 using speech recognition
• CPC Class Codes: H04M 2203/2061 Language aspects
• CPC Class Codes: H04M 2207/18 wireless networks
• CPC Class Codes: H04M 3/18 with means for reducing interference or noise; with means for reducing effects due to line faults with means for protecting lines
• CPC Class Codes: H04M 7/006 Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP) , including next generation networks with a packet-switched transport layer H04L65/00 takes precedence; aspects not specific to the type of network H04M3/00; special services in those networks H04M3/42
• CPC Class Codes: H04W 40/02 Communication route or path selection, e.g. power-based or shortest path routing
• CPC Class Codes: H04W 40/24 Connectivity information management, e.g. connectivity discovery or connectivity update
• CPC Class Codes: H04W 74/0825 with collision detection
• CPC Class Codes: H04W 8/26 Network addressing or numbering for mobility support
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]
• CPC Class Codes: H04W 88/02 Terminal devices
• CPC Class Codes: H04W 88/08 Access point devices
• CPC Class Codes: H04W 88/14 Backbone network devices

Abstract

A system for wireless communication comprises an architecture of routers connected to a network and having connected transceivers for wireless transmission and reception of data, and a plurality of hand-held communicators adapted for users to communicate with the network through the routers. The system is configured for data network telephony (DNT) in the wireless portion, wherein voice data is encoded and transmitted in real time in data packets, and also provides data exchange for document-type entities. In one aspect a unique mirroring of channels from the wireless portion to a hard-wired link provides for mutual access and sharing of overall bandwidth from and to individual transceivers.

Claims

1. In a wireless communication system having an intelligent router connected by a hard-wired link to a tansceiver, wherein a gross wireless bandwidth is allocated by assigning communication channels for individual users, a method for ensuring sharing of the bandwidth among the users, comprising the steps of:

(a) mirroring the channel assignments for wireless communication for the users to the hard-wired link by the router, creating thereby virtual channels in the hard-wired link; and

(b) transmitting data meant for a specific channel from the router to the transceiver for wireless transmission according to the virtual channels imposed on the hard-wired link.

4. The DNT system of claim 1 wherein the DNT-capable data network is a local area network (LAN).

5. The DNT system of claim 1 wherein the DNT-capable data network is a wide area network (WAN).

2. A system for ensuring sharing of bandwidth among users in a wireless communication system comprising;

a plurality of users, each having a portable computer-enhanced communicator unit for communicating with the system;

a transceiver for communicating with the communicator units, allocating gross wireless bandwidth by assigning communication channels to individual ones of the communicator units; and

an intelligent router connected by a hard-wired link to the transceiver;

wherein the router mirrors the channel assignments to the hard-wired link, creating thereby virtual channels in the hard-wired link, and transmits data meant for a specific channel to the transceiver for wireless transmission to the communicator units, according to the virtual channels imposed on the hard-wired link.

3. The system of claim 2 wherein the router is further adapted to process data network telephony (DNT) calls on a DNT-capable data network and to broadcast and receive the DNT calls to and from the plurality of communicator units via the transceiver as DNT data packets.