Session dispatcher at a wireless multiplexer interface

Details Session dispatcher at a wireless multiplexer interface Session dispatcher at a wireless multiplexer interface

2000-05-31

2004-10-19

Ton, Dang (Department: 2666)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

C370S235000, C370S252000, C370S310100, C709S230000, C455S445000, C379S201010, C379S219000

Reexamination Certificate

active

06807178

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Technical Field of the Invention
The present invention relates to a multi-user communications system and, in particular, to an operation for managing multi-user, multi-session access to a shared communications link.
2. Description of Related Art
Reference is now made to
FIG. 1
wherein there is shown a functional block diagram of a wireless local loop arrangement
100
using a wireless Digital Subscriber Line Access Multiplexer (W-DSLAM or a “radio head”) module
102
. A high-speed common carrier network
104
is connected from one of its Asynchronous Transfer Mode ATM switches
106
to the W-DSLAM module
102
over a high-speed wireless link (aggregate path)
108
. The aggregate throughput provided via the wireless link
108
is approximately 40.0 Mbps. The W-DSLAM
102
functions to multiplex this aggregate throughput into a plurality of wireless distribution channels
110
. Each wireless distribution channel
110
is capable providing a throughput of between (approximately) 384 Kbps and (approximately) 2 Mbps. At these operating throughput rates, the W-DSLAM
102
is capable of concentrating a substantial number of channels into the single high speed wireless aggregate path link
108
. Although only one W-DSLAM module
102
is illustrated it will be understood that multiple arrangements
100
may be connected to the common carrier network
104
, and further that multiple W-DSLAM modules may be interconnected with each other in a tree or ring topology within the context of the present invention. Each of the wireless distribution channels
110
is terminated at one or more network termination (NT) nodes or modules
112
, each of which being provided at a user's (or subscriber's) home, office, business, or any other facility. The network termination module
112
may further operate in a multiplexing fashion to allow plural devices (D)
114
, each requiring a portion of the bandwidth provided by the wireless distribution channel
110
, to be connected for communication. Examples of such devices
114
include: a computer, a telephone, home appliances, office devices, and microprocessor controlled components and the like.
The high-speed common carrier network
104
is provided as a Synchronous Optical Network (SONET) or related Synchronous Digital Hierarchy (SDH) ring
120
formed from a plurality of cable interconnected ATM Add/Drop Multiplexers (ADM)
122
. Other network elements, such as a server
124
, routers
126
, and ATM switches
106
are interconnected to the ring
120
. The ATM switches
106
connecting with the W-DSLAM
102
over the link
108
comprises a point of presence (POP) node for providing wireless local loop arrangement
100
access to the common carrier network
104
. This POP ATM switch
106
is preferably connected to one of the ring ATM/ADM modules
122
via a high-speed link
130
capable of throughput in the order of several hundred megabits per second. As one example, the high-speed link
130
may be implemented to transport an Optical Carrier
12
(OC-
12
) optical signal with a throughput of around 622.080 Mbps.
The multi-user shareable wireless local loop distribution channels
110
may advantageously utilize Digital Subscriber Line (DSL) modem technology to support transmission operating rates that are capable of delivering a host of broadband applications such as multimedia, video-teleconferencing, video-on-demand, games-on-demand, and the like. Preferably, a suitable Time Division Multiple Access (TDMA) or Code Division Multiple Access (CDMA) scheme may be utilized for the air interface required for implementing these point to multi-point distribution channels
110
. Further, the air interface may be provided in accordance with standard protocols such as ANSI-136 or GSM, using a common carrier signal, for example, a 200 KHz (for a 384 Kbps data rate) or 1.6 MHz (for data rates up to 2 Mbps) signal.
A network management system database
134
is connected to the W-DSLAM module
102
via a communications link
136
that may comprise a network connection. The database
134
maintains data concerning not only users and their services but also the configuration of the wireless local loop arrangement
100
and network
104
. The database
134
further performs some active management functions concerning ensuring proper operation and configuration of the wireless local loop arrangement
100
and network
104
by monitoring performance and providing dynamic response thereto.
SUMMARY OF THE INVENTION
A plurality of terminal nodes each capable of handling for a given user a plurality of sessions are connected to a multiplexer node operable to aggregate that session traffic onto an aggregate communications link. This connection is made over a shared point to multi-point communications link from the multiplexer node to the plurality of terminal nodes. Regulation of user and session access to the shared communications link is effectuated by a session dispatcher functionality. That functionality includes a dispatcher for each terminal that operates responsive to a received command to regulate session traffic access to the shared communications link. A proxy agent for the functionality at the multiplexer node operates responsive to configuration data to determine (a) which terminal nodes and (b) which sessions being handled thereby are to be granted access rights to the shared communications link and issue the necessary commands to the dispatcher to implement that determined allocation.


REFERENCES:
patent: 5490138 (1996-02-01), Niestegge et al.
patent: 5729826 (1998-03-01), Gavrilovich
patent: 6073163 (2000-06-01), Clark et al.
patent: 6163844 (2000-12-01), Duncan et al.
patent: 6192173 (2001-02-01), Solheim et al.
patent: 6374303 (2002-04-01), Armitage et al.
patent: 6418126 (2002-07-01), Gilmurray et al.
patent: 6452942 (2002-09-01), Lemieux
patent: 6597689 (2003-07-01), Chiu et al.
patent: 6665273 (2003-12-01), Goguen et al.
patent: 0 935 364 (1999-08-01), None
patent: WO 93/07724 (1993-04-01), None
patent: WO 95/24802 (1995-09-01), None
patent: WO 98/58456 (1998-12-01), None
patent: WO 99/04534 (1999-01-01), None
patent: WO 99/51001 (1999-10-01), None
International Search Report, PCT/SE01/01236, dated Dec. 19, 2001.

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