Determination of mobile service option via phone number

Details Determination of mobile service option via phone number Determination of mobile service option via phone number

1999-09-29

2002-04-09

Bost, Dwayne (Department: 2681)

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

C455S414200, C455S556200, C455S565000, C455S090300, C379S442000, C379S456000

Reexamination Certificate

active

06370399

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention generally relates to the field of wireless communications. More particularly, the present invention relates to a novel and improved method and system for determining the selection of a mobile service data option in a wireless communications network having data service support.
2. Description of Related Art
Recent innovations in wireless communication and computer-related technologies, as well as the unprecedented growth of Internet subscribers, have paved the way for mobile computing. In fact the popularity of mobile computing has placed greater demands on the current Internet infrastructure to provide mobile users with more support. One crucial part of meeting these demands and providing users with such support is the use of Code Division Multiple Access (CDMA) technology in wireless communication systems.
CDMA technology has been used in military and intelligence-gathering satellite communication systems for decades. However, only recently has CDMA's potential for wireless commercial communication applications been exploited. Unlike conventional analog and digital communication systems, which divide the available frequency spectrum into narrow channels and assign conversations to each channel, CDMA systems assign a unique code to each conversation and spread the plurality of simultaneous conversations across a wideband spread spectrum bandwidth. As long as the receiving apparatus has the correct code, it can successfully detect and select its conversation from the other conversations concurrently transmitted over the same bandwidth in the CDMA system. The standard for CDMA (i.e., spread spectrum) wideband wireless communication systems is generally provided by the Telecommunications Industry Association/Electronics Industries Association Interim Standard 95 (TIA/EIA IS-95), entitled “MOBILE STATION-BASE STATION COMPATIBILITY STANDARD FOR DUAL-MODE WIDEBAND SPREAD SPECTRUM CELLULAR SYSTEM”, published in July 1993 and herein incorporated by reference.
Even more recently, CDMA technology has been recognized as ideal for accommodating data service traffic as well. In fact, TIA/EIA IS-707, as defined in “DATA SERVICE OPTIONS FOR WIDEBAND SPREAD SPECTRUM SYSTEMS”, published in February 1998 and herein incorporated by reference, provides a suite of data service options within a wireless CDMA communication network. This standard includes circuit-switched data/modem emulation services, such as asynchronous data, Group m facsimile, and secure telephone units (STU-III) applications. In addition, it includes packet-switched services, such as Internet-related e-mail and web-browsing capabilities.
These services enable mobile users to use their laptop or palmtop computers to access the Internet. To wit, just as stationary users conventionally employ “wired” communication devices to connect their desktop computers to land-based networks, mobile users can use wireless communication devices (MT2 devices) to connect their mobile laptops to such networks. As used herein, an MT2 device refers to any subscriber station in the wireless communication network that is can be used while in transit or during halts at unspecified points. MT2 devices include portable units (e.g., hand-held personal phones) and units permanently installed in vehicles (e.g., installed mobile phone units), as well as wireless local loop (WLL) telephones.
FIG. 1
illustrates a high-level block diagram of a wireless data communication system in which mobile terminal equipment TE2 device
102
(e.g., laptop or palmtop computer), communicates with an Interworking Function (IWF)
108
via a wireless communication system. The wireless communication system includes a wireless communication device MT2 device
104
and a Base Station/Mobile Switching Center (BS/MSC)
106
. The IWF
108
serves as the access point or gateway to the Internet. An L interface couples IWF
108
to BS/MSC
106
. Often the IWF
108
will be co-located with the BS/MSC.
The TE2 device
102
is electronically coupled to the MT2 device
104
via the R
m
interface. The MT2 device
104
communicates with the BS/MSC
106
via the wireless interface U
m
. The TE2 device
102
and the MT2 device
104
may be integrated into a single unit or maybe separated out, as in the case of an installed mobile phone unit in which a laptop operates as the TE2 device
102
and the transceiver operates as the MT2 device
104
. The combination of the TE2 device
102
and the MT2 device
104
, whether integrated or separate, is also referred to as a mobile station (MS)
103
.
As stated above, CDMA Data Service Options offers direct Internet access via its packet-switch functionality. Specifically, TIA/EIA IS-707.5, entitled “DATA SERVICE OPTIONS FOR WIDEBAND SPREAD SPECTRUM SYSTEMS: PACKET DATA SERVICES,” published in February 1998 and herein incorporated by reference, defines requirements for support of packet data transmission capability on TIA/EIA IS-95 wideband spread spectrum systems. IS-707.5 specifies a packet data bearer service that may be used for communication between TE2 device
102
and IWF
108
via BS/MSC
106
and provides procedures that can apply to multiple packet data services.
In particular, the IS-707.5 standard specifies the Packet Data Service options that may be used to communicate between the TE2 device
102
and IWF
108
via BS/MSC
106
. In doing so, IS-707.5 introduces two protocol option models, which specify the packet data protocol requirements for the R
m
interface, U
m
interface, and the L interface.
FIG. 2
depicts one of the protocol option models, the Relay Layer Interface Protocol Option model
200
, in which the application running on the TE2 device
102
manages the packet data as well as the network addressing.
At the far left of
FIG. 2
is a protocol stack, shown in conventional vertical format that depicts the protocol layers running on the TE2 device
102
. At the top of the TE2 protocol stack lies the application layer
202
. For mobile users accessing the Internet through Packet Data Service options, the communications applications software such as web browser programs (e.g., Netscape Navigator™, Microsoft Internet Explorer™ etc.) and e-mail/messaging programs (e.g., Eudora®) comprise the application layer
202
of the TE2 device
102
.
As depicted in
FIG. 2
, the transport layer protocol
204
of the TE2 device
102
maybe the Transmission Control Protocol (TCP). TCP is defined in Request for Comment 793 (RFC 793) entitled, “TRANSMISSION CONTROL PROTOCOL: DARPA INTERNET PROGRAM PROTOCOL SPECIFICATION”, published in September 1981 and herein incorporated by reference. Essentially, TCP provides a reliable transport service to all applications. TCP manages the assembly of messages coming from the TE2 device
102
into packets or datagrams that are transmitted over the Internet.
Alternatively, the transport layer protocol
204
of the TE2 device
102
may implement the User Datagram Protocol (UDP). UDP is defined in Request for Comment 768 (RFC 768) entitled, “USER DATAGRAM PROTOCOL”, published in August 1980 and incorporated by reference. Like TCP, UDP provides a transport service to all applications. However, instead of assembling the messages coming from the TE2 device
102
into packets or datagrams, UDP relies on the application itself to ensure that the messages arrive and that they do so in sequence.
The network layer protocol
206
of the TE2 device
102
is the Internet Protocol (IP), is defined in Request for Comment 791 (RFC 791) entitled, “INTERNET PROTOCOL: DARPA INTERNET PROGRAM PROTOCOL SPECIFICATION”, published in September 1981 and herein incorporated by reference. The IP protocol is the life-blood of the Internet as it handles the addressing and routing functionality for all Internet communications. It achieves this by affixing a 32-bit address to the header of packets, so as to ensure that the packets get to the right destination. Each computer on the network checks the IP address to see where to forward the IP packets.
The link layer proto

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