Method and apparatus for optimizing data compression in a...

Details Method and apparatus for optimizing data compression in a... Method and apparatus for optimizing data compression in a...

2000-10-11

2004-10-05

Chin, Stephen (Department: 2634)

Pulse or digital communications

Bandwidth reduction or expansion

Reexamination Certificate

active

06801571

ABSTRACT:

TECHNICAL FIELD OF THE INVENTION
The invention relates generally to wireless digital access systems and, more specifically, to data compression for wireless digital access systems.
BACKGROUND OF THE INVENTION
In the past, data compression techniques, for example such techniques as those described in ITU CCITT Recommendation V.42 bis, which is incorporated by reference into the present application, were applied between two modems to increase throughput between the two modems. Even with the recent growth in wireless communications, the existing paradigm has been maintained as illustrated in FIG.
1
.
FIG. 1
is a block diagram illustrating a system of the prior art for providing communication using data compression. Mobile station
101
is coupled via radio frequency (RF) communication link
109
to base station controller
102
. Base station controller
102
is coupled via coupling
110
to control processor
104
of interworking unit (IWU)
103
. Control processor
104
is coupled via coupling
111
to modem
105
of IWU
103
. Modem
105
is coupled via coupling
112
to base station controller
102
. Base station controller
102
is coupled via coupling
113
to network
106
. Network
106
is coupled via coupling
114
to landline modem
107
. Landline modem
107
is coupled via coupling
115
to server
108
.
A data compression session is established between landline modem
107
and modem
105
of IWU
103
. A separate data compression session utilizing different compression parameters is established between mobile station
101
and control processor
104
of IWU
103
. Thus, control processor
104
is required to perform computationally intensive data compression and decompression of the data being communicated with mobile station
101
. A control processor
104
is typically coupled to approximately 20 modems
105
. Consequently, control processor
104
may be burdened not only with the computationally intensive data compression and decompression for one mobile station
101
, but potentially with the data compression and decompression for approximately 20 mobile stations
101
. Such conditions can easily overwhelm the available processing power of control processor
104
. While simple point-to-point communication systems have benefited from data compression in the past, more complex systems, such as that illustrated in
FIG. 1
, have not been able to achieve the same level of performance. There has been a long-felt, but unsatisfied, need to provide a technique capable of providing substantial improvements in performance to such more complex systems. Thus, a method and apparatus for optimizing data compression in a wireless digital access system is needed.


REFERENCES:
patent: 5131016 (1992-07-01), Broughton et al.
patent: 5410754 (1995-04-01), Klotzbach et al.
patent: 5758256 (1998-05-01), Berry et al.
patent: 5809066 (1998-09-01), Suomi et al.
patent: 5862142 (1999-01-01), Takiyasu et al.
patent: 5911120 (1999-06-01), Jarett et al.
patent: 5920402 (1999-07-01), Scott
patent: 6128505 (2000-10-01), Sipila
patent: 6205173 (2001-03-01), Obradors et al.
patent: 6246754 (2001-06-01), Cole et al.
patent: 6324515 (2001-11-01), Rabipour et al.
patent: 6366609 (2002-04-01), Rossi
patent: 6415329 (2002-07-01), Gelman et al.
patent: 6597674 (2003-07-01), Obuchi et al.
patent: 2002/0009136 (2002-01-01), Heath
patent: WO 9927691 (1999-06-01), None

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