Title of Invention

A METHOD FOR SETTING UP A CALL BETWEEN A CALLING MOBILE STATION AND A CALLED MOBILE STATION BY A MOBILE SWITCHING CENTER MSC IN A MOBILE CUMMUNICATION SYSTEM

Abstract The invention relates to a method for setting up a call between a calling mobile station and a called mobile station by a Mobile Switching Center MSC in a mobile communication system, the method comprising the steps of receiving (325) a service request message from a calling radio network controller (RNC) (115), and transmitting an incoming call request message to a called radio network controller (RNC) (125); determining if a requested service requested through the service request message can be supported by the called mobile station (135); transmitting (335) a first service connection path setup request to the calling RNC (115) prior to receiving (355) a service acceptance message from the called RNC (125) if the requested service can be supported by the called mobile station (135) transmitting (360) a second service connection path setup request to the called RNC (125), after receiving both the service acceptance message corresponding to the incoming call request from the called RNC (125) and a first service connection path setup response corresponding to the first service connection path setup request from the calling RNC (115); and receiving (370), from the called RNC (125), a second connection path setup response corresponding to the second connection path setup request.
Full Text METHOD AND APPARATUS FOR CALL SET UP IN A MOBILE
COMMUNICATION SYSTEM
CROSS-REFERENCE TO RELATED APPLICATION
This application claims the benefit under 35 U.S.C. ยง 119(a) of Korean
patent application entitled "METHOD AND APPARTUS FOR CALL SET UP IN
A MOBILE COMMUNICATION SYSTEM" filed in the Korean Industrial
Property Office on May 19, 2004, and assigned Serial No. 2004-35728, the entire
contents of which are hereby incorporated by reference.
BACKGROUND OF THE INVENTION
Field of the Invention:
The present invention relates to a mobile communication system. More
particularly, the present invention relates to a method and an apparatus for
establishing a call in a mobile switching center (MSC).
Description of the Related Art:
Typically in a conventional mobile communication system, a procedure
for setting a speech path based on radio network resources of the mobile station is
required in order to establish a call for providing the service between mobile
stations. Such a procedure for establishing the call should follow only a
standardized procedure. Unlike a synchronous mobile communication system
such as that employed in Korea, an asynchronous mobile communication system,
which is some times called a "European Type" system, defines a procedure for
establishing the call requiring two steps, that is, one step for setting up a Radio
Resource Control (RRC) connection path for transmitting control information,
and another step for setting up a service connection path for transmitting user
traffics. Accordingly, the calling mobile station and the called mobile station
perform the step for setting up the RRC connection path and the step for setting
the user traffics connection, respectively.
FIG. 1 illustrates a structure of a conventional asynchronous mobile
communication system. In FIG. 1, the system comprises a base station 105 for
setting up an RRC connection path connected with a calling mobile station 100, a

radio network controller ( RNC) 115 for controlling the RRC connection path via
the base station 105, a base station 130 for setting RRC connection path
connected with a called mobile station 135, a radio network controller (RNC) 125
for controlling the RRC connection path through the base station 130, and a
Mobile Switching Center (MSC) 120 for providing service connections between
the RNCs 115 and 125. According to such a structure in the conventional
asynchronous mobile communication system mentioned above, the users can
communicate with each other through the mobile stations 100 and 135.
Each of the base stations 105, 110 and 130 has at least a transceiver
capable of performing wireless communication with the mobile stations 100 and
135. The RNCs 115 and 125 control the base stations 105, 110 and 130, and
exchange messages for setting up RRC connection path and the service
connection path with the base stations 105, 110 and 130 and the MSC 120.
FIG. 2 illustrates a process for establishing a call in a conventional mobile
communication system shown in FIG. 1. In FIG. 2, for simplicity and clarification
to further understand the prior art, procedures for establishing the calls between
the calling and the called stations and the base stations are omitted. At step 205,
the calling mobile station 100 performs Radio Resource Control (RRC)
connection setup between the base station and the calling mobile station 100 in
accordance with control of the RNC 115. At step 210, if the RNC 115 transmits a
service request message to the MSC 120, the MSC 120 receives the service
request message. The service request message has been sent from the mobile
station to the network to initiate a call establishment originated by the calling
mobile station. Also, the service request message comprises a bearer capability. At
step 215, the MSC transmits an incoming call request message to the RNC 125
which covers the called mobile station 135 located therein. Next at step 220, the
RNC 125 sets up RRC connection path between the called mobile station 135 and
the base station. Then at step 225, the RNC 125 transfers, to the MSC 120, the
service acceptance message indicating that the called mobile station can accept
the service requested by the calling mobile station. The service acceptance
message also comprises the bearer capability. Next, at step 230, the MSC 120
which has received the service acceptance message transmits, to the RNC 115, a
service connection path setup request message for transferring user traffics
between the mobile stations and the base stations based on the types of the
services. Then, at step 235, the RNC 115 sets up the service connection path for

transferring the user traffics between the mobile stations and the base stations
according to the setup request message of the MSC 120. Also at step 240, the
RNC 115 sends a setup response message of the service connection path to the
MSC 120. Then, at step 245, the MSC 120 sends the setup request of the service
connection path to the RNC 125. Next, at step 250, the RNC 125 sets up the
service connection path between the mobile terminal 135 and the MSC 120. Then
at step 255, the RNC 125 provides a service connection path setup response, and
completes all the process of the call setup. As a result, if the called mobile
terminal gives a response to the ring caused by the call, then speaking or
communication between the calling and the called mobile stations can be made
through the established service connection path.
By the way, in process for RRC connection setup at step 220, if there is no
response from the called mobile terminal, after a certain time period has elapsed,
the MSC 120 sets up a service connection path connected with the calling mobile
station in order to transmit service-unavailable notice broadcast.
Such a conventional process for establishing a service connection path
setup can be classified largely into 4 steps including a first step for an RRC
connection setup of the calling mobile station at step 205, a second step for an
RRC connection setup of the called mobile station at step 220, a third step for a
service connection path setup of the calling mobile station at step 235 and a
fourth step for a service connection path setup of the called mobile station at step
250. The 4 steps mentioned above are performed sequentially according to the
process flow. Therefore, the process for performing the service connection path
setups of both the calling and the called mobile stations is a time-consuming
procedure.
SUMMARY OF THE INVENTION
Accordingly, the present invention has been made to solve the above-
mentioned problems occurring in the prior art, and an object of the present
invention is to provide a method in which the time for establishing a call setup
can be significantly decreased in a mobile communication system.
Another object of the present invention is to provide a calling setup
method in which it is possible to perform substantially simultaneously both a step
for service connection path setup of a calling mobile station and a step for an

RRC connection path setup of a called mobile station.
In order to accomplish these objects, according to an aspect of the
present invention, a method for establishing a call between a calling mobile
station and a called mobile station in a mobile communication system is provided.
The method comprising the steps of receiving a service request message from a
calling radio network controller (RNC), and transmitting an incoming call request
message to a called radio network controller (RNC), transmitting a first service
connection path setup request to the calling RNC prior to receiving a service
acceptance message from the called RNC, transmitting a second service
connection path setup request to the called RNC, when received, from the called
RNC, the service acceptance message corresponding to the incoming call request
and then when received, from the calling RNC, a first service connection path
setup response corresponding to the first service connection path setup request,
and receiving, from the called RNC, a second connection path setup response
corresponding to the second connection path setup request.
According to another aspect of the present invention, an apparatus for
establishing a call between a calling mobile station and a called mobile station in
a mobile communication system is provided. The apparatus comprises a receiving
unit for receiving a service request message, a service acceptance message and a
service connection path setup request message from a calling radio network
controller (RNC), a control unit for confirming a requested service which has
been requested through the service request message, determining if the service
acceptance message from a called radio network controller (RNC) is received,
and determining if a first service connection path setup response message from
the calling RNC is received, and a transmitting unit for a first service connection
path setup request message to the calling RNC in response to the service request
message, wherein if receiving the service acceptance message and the first service
connection path setup response message, the transmitting unit transmits a second
connection path setup request message to the called RNC.
BRIEF DESCRIPTION OF THE DRAWINGS
The above and other objects, features and advantages of the present
invention will be more apparent from the following detailed description taken in
conjunction with the accompanying drawings, in which:

FIG. 1 is a block diagram illustrating a conventional mobile
communication system;
FIG. 2 is a diagram illustrating a call setup scheme in a conventional
mobile communication system;
FIG. 3 is a diagram illustrating a call setup scheme in a mobile
communication system according to an exemplary embodiment of the present
invention;
FIG. 4 is a flow chart explaining the operation process of a mobile
switching center according to an exemplary embodiment of the present invention;
and
FIG. 5 is a block diagram illustrating a structure of a mobile switching
center according to an exemplary embodiment of the present invention.
Throughout the drawings, it should be noted that like reference numbers
are used to depict the same or similar elements, features and structures.
DETAILED DESCRIPTION OF EXEMPLARY EMBODIMENTS
Hereinafter, exemplary embodiments of the present invention will be
described with reference to the accompanying drawings. A detailed description of
known functions and configurations incorporated herein will be omitted for
conciseness.
The exemplary embodiment of the present invention as described below
substantially simultaneously performs a step for service connection path setup of
a calling mobile station and a step for an RRC connection path setup of a called
mobile station by a calling setup scheme in accordance with exemplary
embodiments of the present invention,
In FIG. 2, after receiving a service acceptance of a called mobile station, a
service connection path setup of a calling mobile is established. This is mainly
because the called mobile station should send its support capability to an Mobile
Switching Center (MSC) such that the called mobile station negotiates its
substantial support range with the MSC and then supports its capability of the
negotiated support range when there are some differences between a requested
capability of the calling mobile station and the substantial support capability of
the called mobile station. In voice services, however, all the mobile stations can
have the support capability for that voice services. Therefore, when the MSC

confirms the requested service of the calling mobile station has been the voice
service, then MSC can establish the service connection path setup of the calling
mobile station to provide a speaking path without receiving any service
acceptance from the called mobile station.
For example, in an asynchronous system, there are several types of
services which the mobile station cannot support. The Adaptive Multi-Rate
(AMR) of 12.2 Kbps, however, can be supported by all the mobile stations.
Therefore, if the requested service of the calling mobile station is a voice service
of just the AMR of 12.2 Kbps, the MSC establishes the service connection path
setup based on the AMR without receiving any service acceptance from the called
mobile station.
FIG. 3 is a diagram illustrating a call setup scheme in a mobile
communication system according to an exemplary embodiment of the present
invention.
Referring to FIG. 3, at step 320, a calling mobile station, in other wards,
User Equipment (UE), 100 establishes Radio Resource Control (RRC) setup
through a Radio Network Controller (RNC) 115. Next, if the calling mobile
station 100 sends a service request message to an MSC Mobile Switching Center
(MSC) 120 at step 325, then at step 330, the MSC 120 sends an incoming call
request to a called mobile station, in other wards, User Equipment (UE), 135 via
an RNC 125 which has a coverage area where the called mobile station 135 is
located. Also, the MSC 120 determines if the service request is a voice speaking
service. If the voice speaking service, then at step 335, the MSC 120 sends
immediately a predetermined service connection path setup request to the calling
RNC 115. The term "immediately" indicates that, unlike the process of FIG. 2, the
MSC 120 sends directly the service connection path setup request to the RNC 115
without receiving a service acceptance message from the called RNC 125.
At step 340, the calling RNC 115 receives the setup request message and
establishes the service connection path setup for transferring user traffics between
the calling mobile station 100 and the MSC 120. Also, the RNC 115 sends a
service connection path response message to the MSC 120 at step 345, while the
called mobile station establishes the RRC setup through the RNC 125 at step 350.
Further, at step 355, the RNC 125 sends a service acceptance request message to
the MSC 120. Next, when the MSC 120 receives the service acceptance of the
called side and the service connection path setup response of the calling side, at

step 360 the MSC 120 sends another service connection path setup request to the
RNC 125. Next, the RNC 125 establishes the service connection path setup for
transferring the user traffics between the called mobile station 135 and the MSC
120 at step 365. Also, at step 370, the RNC 125 sends the service connection path
setup response to the MSC 120 to finally complete the whole process of the call
setup. Next, if the called mobile station responds to ringing for speaking or
communication, the speaking or communication is made at step 375.
When the called mobile station, however, does not respond to the ringing,
the MSC 120 sends service-unavailable notice broadcast through a service
connection path connected with the calling mobile station. Also, when there is no
service acceptance at step 355, it is possible to rapidly provide the service-
unavailable notice broadcast through a service connection path connected with
the calling mobile station.
In the prior art of FIG. 2, only after the service acceptance of the called
mobile station has been confirmed, the step of the service connection path setup
for the calling mobile station is processed at step 235. Unlike the prior art,
according to an exemplary embodiment of the present invention, both the step for
establishing the Commitment, Concurrency and Recovery (CCR) connection
setup of the called mobile station at step 350 and the step for establishing the
service connection path setup of the calling mobile station at step 340 can be
processed at the same time as shown in FIG. 3.
Specifically, in the process for establishing the service connection setup
according to an exemplary embodiment of the present invention, after
establishing the Radio Resource Control (RRC) connection path setup of the
calling mobile station at step 320, both establishing the CCR connection path
setup of the called mobile station at step 350 and establishing the service
connection path setup of the calling mobile station at step 340 are performed the
same time or substantially the same time. Next, the step for establishing the
service connection path setup of the called mobile station is processed at step 365.
FIG. 4 is a flow chart for explaining the operation process of a mobile
switching center according to an exemplary embodiment of the present invention.
When the MSC receives the service request message from the calling
RNC at step 400, the MSC sends the incoming call request message to the called
mobile station at step 405, and determines if the requested service is a voice
service or a dynamic image service at step 410. If the requested service is not the

voice service, for example, asynchronous Adaptive Multi Rate (AMR), or
synchronous Qualcomm Code Excited Linear Predictive (QCELP), but the
dynamic image service, the MSC waits for the service acceptance message from
the called RNC at step 415. When the service acceptance message is received,
then the process proceeds to the step 420 wherein the MSC sends the service
connection path setup request to the calling RNC. Next, when the MSC receives
the service connection path setup response message from the calling RNC at step
425, similarly the MSC, again, sends the service connection path setup request to
the called RNC at step 430. At step 435, the service connection path setup
response is made to finally complete the whole process of the call setup.
Therefore it is possible to speak or communicate between the users through the
mobile communication system.
Contrarily, at step 410, if the requested service is just the voice service
which is supported by the called mobile station, at step 450, the MSC sends the
service connection path setup request message of the calling mobile station to the
calling RNC without waiting for the service acceptance of the called mobile
station. In this case, both the step for establishing the CCR connection path setup
of the called mobile station and the step for establishing the service connection
path setup of the calling mobile station are performed at the almost same time. At
step 455, the MSC operates in a standby mode until receiving all of both the
service connection path setup response and the service acceptance message of the
called RNC. The elapsed times of receiving the response and the service
acceptance messages may be different from each other according to the service
connection path setup time of the calling side or the RRC setup time of the called
side. If receiving all, the process proceeds to step 430, and if not, the process
returns to step 455. Finally, the MSC sends the service connection path setup
request message to the called RNC at step 430, and receives the service
connection path setup response to eventually complete the whole process of the
call setup at step 435.
FIG. 5 illustrates a structure of a mobile switching center according to an
exemplary embodiment of the present invention.
Referring to FIG. 5, a receiving unit 510 is a module for receiving
messages transmitted from the calling RNC and the called RNC. The messages
transmitted from the RNCs comprises for example, a service request message
from the calling RNC and a service connection path setup response message

which is transmitted after setting up the service connection path. Also the
receiving unit 510 receives a service acceptance message indicating a service-
availability of the called mobile station, and a service connection path setup
response message from the called RNC.
A control unit 520 determines if a requested service can be supported by
the called mobile station. The requested service has been requested through the
service request message and the receiving unit 510 has previously received the
requested service as mentioned above. If the requested service is for example, a
voice service of AMR 12.2 kbps, the control unit 520 sends a service connection
path setup request message to a transmitting unit 530 in order to transmit the
request message to the calling RNC.
When the control unit 520 does not receive a response message
corresponding to the service connection path setup request from the calling radio
network controller, the control unit 520 provides a service-unavailable notice
broadcast via a service connection path previously setup between the called RNC
and the control unit 520.
The transmitting unit 530 is a module for transmitting messages to the
calling RNC and the called RNC. Specifically, the transmitting unit 530 transmits,
to the calling RNC, the service connection path setup request message which has
been transmitted from the control unit 520. Further, the transmitting unit 530
transmits, to the called RNC, an incoming call request message and the service
connection path setup request message based on the service acceptance message.
According to an exemplary embodiment of the present invention as
mentioned above, the elapsed time for establishing a call between the calling and
called mobile stations can be significantly reduced because, in the mobile
switching center, the incoming call request message and the service connection
path setup request message can be transmitted in the same period of time. If the
response message of the called mobile station is not received, it is possible to
further rapidly make the service-unavailable notice broadcast through a service
connection path previously set and connected with the calling mobile terminal.
While the invention has been shown and described with reference to
exemplary embodiments thereof, various changes in forms and details may be
made within the scope of the present invention. For example, in addition to the
asynchronous mobile communication system mentioned above, the principle of
the present invention may be applied to all the other mobile communication

systems or its equivalents similar to the asynchronous system in structure and
operation thereof. Accordingly, the scope of the present invention should not be
limited to the embodiments described in the specification but to the appended
claims or its equivalents.

We Claim:
1. A method for setting up a call between a calling mobile station and a
called mobile station by a Mobile Switching Center MSC in a mobile
communication system, the method comprising the steps of:
receiving (325) a service request message from a calling radio network
controller (RNC) (115), and transmitting an incoming call request message to
a called radio network controller (RNC) (125);
determining if a requested service requested through the service request
message can be supported by the called mobile station (135);
transmitting (335) a first service connection path setup request to the calling
RNC (115) prior to receiving (355) a service acceptance message from the
called RNC (125) if the requested service can be supported by the called
mobile station (135);
transmitting (360) a second service connection path setup request to the
called RNC (125), after receiving both the service acceptance message
corresponding to the incoming call request from the called RNC (125) and a
first service connection path setup response corresponding to the first service
connection path setup request from the calling RNC (115); and

receiving (370), from the called RNC (125), a second connection path
setup response corresponding to the second connection path setup request.
2. The method as claimed in claim 1, wherein the requested service is voice
service.
3. The method as claimed in claim 1, wherein the method comprises the step
of providing a service-unavailable-notice broadcast via a service connection
path previously set up and connected with the calling RNC (115), if the
service acceptance message corresponding to the incoming call request is not
received from the called RNC (125).
4. The method as claimed in claim 2, wherein the voice service is a voice
service of the Adaptive Multi Rate AMR 12.2kbps.
5. The method as claimed in claim 1, wherein the incoming call request
message and the first service connection path setup are transmitted
substantially simultaneously.
6. An apparatus for setting up a call between a calling mobile station and a
called mobile station in a mobile communication system, the apparatus
comprising:

a receiving unit operable to receive a service request message and a service
connection path setup response message from a calling radio network
controller (RNC)(115);
a control unit operable to determine if both a service acceptance message
from a called radio network controller (RNC) (125) and a first service
connection path setup response message from the calling RNC (115) are
received and if a requested service requested through the service request
message can be supported by the called mobile station (135); and
a transmitting unit operable to transmit a first service connection path setup
request message to the calling RNC (115) in response to the service request
message prior to the service acceptance message being received if the
requested service can be supported by the called mobile station (135),
wherein the transmitting unit transmits a second service connection path
setup request message to the called RNC (125) after receiving both the
service acceptance message and the first service connection path setup
response message.
7. The apparatus as claimed in claim 6, wherein the requested service is
voice service.

8. The apparatus as claimed in claim 7, wherein the voice service is a voice
service of the Adaptive Multi Rate AMR 12.2kbps.
9. The apparatus as claimed in claim 6, wherein the control unit is operable
to provide a service-unavailable-notice broadcast via a service connection
path previously set up and connected with the calling RNC (115), if the
response message corresponding to the service connection setup request is
not received from the called RNC (125).
10. The apparatus as claimed in claim 6, wherein the transmitting unit is
operable to transmit an incoming call request message to the called RNC
(125) at substantially the same time as transmitting the first service
connector path setup request.


ABSTRACT

TITLE: A method for setting up a call between a calling mobile station and a
called mobile station by a Mobile Switching Center MSC in a mobile
communication system
The invention relates to a method for setting up a call between a calling
mobile station and a called mobile station by a Mobile Switching Center MSC
in a mobile communication system, the method comprising the steps of
receiving (325) a service request message from a calling radio network
controller (RNC) (115), and transmitting an incoming call request message to
a called radio network controller (RNC) (125); determining if a requested
service requested through the service request message can be supported by
the called mobile station (135); transmitting (335) a first service connection
path setup request to the calling RNC (115) prior to receiving (355) a service
acceptance message from the called RNC (125) if the requested service can
be supported by the called mobile station (135) transmitting (360) a second
service connection path setup request to the called RNC (125), after receiving
both the service acceptance message corresponding to the incoming call
request from the called RNC (125) and a first service connection path setup
response corresponding to the first service connection path setup request
from the calling RNC (115); and receiving (370), from the called RNC (125),
a second connection path setup response corresponding to the second
connection path setup request.

Documents:

02555-kolnp-2006 abstract.pdf

02555-kolnp-2006 assignment.pdf

02555-kolnp-2006 claims.pdf

02555-kolnp-2006 correspondencothers.pdf

02555-kolnp-2006 description(complete).pdf

02555-kolnp-2006 drawings.pdf

02555-kolnp-2006 form1.pdf

02555-kolnp-2006 form2.pdf

02555-kolnp-2006 form3.pdf

02555-kolnp-2006 form5.pdf

02555-kolnp-2006 international publication.pdf

02555-kolnp-2006 international search authority report.pdf

02555-kolnp-2006 pct form.pdf

02555-kolnp-2006-correspondence-1.1.pdf

02555-kolnp-2006-form-18.pdf

2555-KOLNP-2006-(20-01-2012)-CORRESPONDENCE.pdf

2555-KOLNP-2006-(26-09-2011)-ABSTRACT.pdf

2555-KOLNP-2006-(26-09-2011)-AMANDED CLAIMS.pdf

2555-KOLNP-2006-(26-09-2011)-CORRESPONDENCE.pdf

2555-KOLNP-2006-(26-09-2011)-DESCRIPTION (COMPLETE).pdf

2555-KOLNP-2006-(26-09-2011)-FORM 1.pdf

2555-KOLNP-2006-(26-09-2011)-FORM 2.pdf

2555-KOLNP-2006-(26-09-2011)-FORM 3.pdf

2555-KOLNP-2006-(26-09-2011)-FORM 5.pdf

2555-KOLNP-2006-(26-09-2011)-OTHERS.pdf

2555-KOLNP-2006-(26-09-2011)-PETITION UNDER RULE 137.pdf

2555-KOLNP-2006-CORRESPONDENCE 1.2.pdf

2555-KOLNP-2006-CORRESPONDENCE 1.4.pdf

2555-KOLNP-2006-CORRESPONDENCE-1.1.pdf

2555-KOLNP-2006-CORRESPONDENCE-1.3.pdf

2555-KOLNP-2006-DRAWINGS-1.1.pdf

2555-KOLNP-2006-ENGLISH TRANSLATION.pdf

2555-KOLNP-2006-EXAMINATION REPORT.pdf

2555-KOLNP-2006-FORM 1.pdf

2555-KOLNP-2006-FORM 18.pdf

2555-KOLNP-2006-FORM 3.pdf

2555-KOLNP-2006-FORM 5.pdf

2555-KOLNP-2006-GPA.pdf

2555-KOLNP-2006-GRANTED-ABSTRACT.pdf

2555-KOLNP-2006-GRANTED-CLAIMS.pdf

2555-KOLNP-2006-GRANTED-DESCRIPTION (COMPLETE).pdf

2555-KOLNP-2006-GRANTED-DRAWINGS.pdf

2555-KOLNP-2006-GRANTED-FORM 1.pdf

2555-KOLNP-2006-GRANTED-FORM 2.pdf

2555-KOLNP-2006-GRANTED-SPECIFICATION.pdf

2555-KOLNP-2006-OTHERS 1.2.pdf

2555-KOLNP-2006-OTHERS PCT FORM.pdf

2555-KOLNP-2006-OTHERS-1.1.pdf

2555-KOLNP-2006-OTHERS.pdf

2555-KOLNP-2006-PA.pdf

2555-KOLNP-2006-REPLY TO EXAMINATION REPORT 1.1.pdf

2555-KOLNP-2006-REPLY TO EXAMINATION REPORT.pdf

abstract-02555-kolnp-2006.jpg


Patent Number 255669
Indian Patent Application Number 2555/KOLNP/2006
PG Journal Number 11/2013
Publication Date 15-Mar-2013
Grant Date 13-Mar-2013
Date of Filing 06-Sep-2006
Name of Patentee SAMSUNG ELECTRONICS CO. LTD.
Applicant Address 416, MAETAN-DONG, YEONGTONG-GU, SUWON-SI, GYEONGGI-DO
Inventors:
# Inventor's Name Inventor's Address
1 HYO-JOON KIM #302, 602-249, NAMHYEON-DONG, GWANAK-GU, SEOUL, REPUBLIC OF KOREA
PCT International Classification Number H04Q7/30; H04Q7/38
PCT International Application Number PCT/KR2005/001462
PCT International Filing date 2006-05-18
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 10-2004-0035728 2004-05-19 Republic of Korea