CROSS-REFERENCES TO RELATED APPLICATIONS
[0001] The present invention claims priority of Korean Patent Application Nos.
10-2008-0068316 and
10-2008-0130550, filed on July 14, 2008, and December 19, 2008, respectively, which are incorporated
herein by reference.
BACKGROUND OF THE INVENTION
Field of the Invention
[0002] The present invention relates to a method for providing an region-based broadcasting
service; and, more particularly, to a method for providing an region-based Digital
Multimedia Broadcasting (DMB) service where service area is divided into a wide area
and a local area according to the coverage of broadcasting signals and data of a corresponding
service are separately transmitted, and an apparatus and method for receiving the
region-based broadcasting service. The region-based DMB service providing method can
quickly and easily provide a wide area service and/or a local area service simultaneously
or selectively by transmitting local area common service information to be commonly
applied to a plurality of local areas that belong to a specific wide area through
wide area transmission frames, and efficiently receiving broadcasting signals at a
receiving part. Development of Next-Generation DTV Core Technology
Description of Related Art
[0003] A conventional broadcasting service providing method through a terrestrial digital
multimedia broadcasting (T-DMB) network sets each broadcasting coverage as a single
area and provides the same service to the area set as a single area.
[0004] For example, in the case of T-DMB, a T-DMB service is provided by dividing 6 MHz
band allocated as a conventional analog TV band into about 2 MHz bands including a
guard band interval. The frequency band of 2 MHz including a guard band is generally
used to cover a wide area such as a metropolitan area in consideration of a basic
purpose of broadcasting.
[0005] The conventional broadcasting service providing method commonly provides services
of a frequency band over the entire wide area, regardless of the location within the
wide area.
[0006] In other words, the conventional DMB service has a limitation in systematically classifying
and providing a service specified to an area, especially to a local area, and has
a disadvantage in view of transmission efficiency.
[0007] Therefore, it is required to develop a method for hierarchically dividing a service
area into local areas and providing a service according to an area.
SUMMARY OF THE INVENTION
[0008] As described above, the conventional technology does not systematically classify
and provide a service dedicated to a specific area and has a problem in that it is
inefficient in terms of transmission efficiency. The present invention is devised
to resolve the problems of the conventional technology.
[0009] Other objects and advantages of the present invention can be understood by the following
description, and become apparent with reference to the embodiments of the present
invention. Also, it is obvious to those skilled in the art to which the present invention
pertains that the objects and advantages of the present invention can be realized
by the means as claimed and combinations thereof.
[0010] An embodiment of the present invention is directed to a method for providing a service
based on a location/area by dividing a service area into wide areas and local areas
according to coverage of broadcasting signals and separately providing service data
according to a wide area and a local area.
[0011] An embodiment of the present invention is directed to a method for transmitting local
area common control information to be commonly applied to a plurality of location
areas that belong to a wide area through wide area transmission frame.
[0012] Also, an embodiment of the present invention is directed to a method for receiving
service data related to a wide area and local area simultaneously or selectively at
a receiving part and providing the received service data to users.
[0013] In accordance with an aspect of the present invention, there is provided a method
for providing an region-based Digital Multimedia Broadcasting (DMB) service, which
includes: generating a wide area transmission frame including data reflated to a wide
area service and local area common service information to be commonly applied to a
plurality of local areas belonging to a wide area; and transforming the generated
wide area transmission frame into a broadcasting signal and broadcasting the broadcasting
signal over the wide area.
[0014] In accordance with another aspect of the present invention, there is provided a broadcasting
service receiving apparatus for receiving an region-based broadcasting service, including:
a location information acquiring means for acquiring current location information
of the broadcasting service receiving apparatus; a wide area data receiving means
for extracting wide area service-related data and local area common service information
from wide area broadcasting signals; a local area data receiving means for receiving
local area broadcasting signals corresponding to the current location information
and extracting local area service-related data from the local area broadcasting signals
based on the acquired current location information and the extracted local area common
service information; and an region-based service processing means for receiving corresponding
extracted information from at least one between the wide area data receiving means
and the local area data receiving means according to a selection made by a user to
provide an region-based service.
[0015] In accordance with another aspect of the present invention, there is provided a method
for receiving an region-based broadcasting service, including: acquiring wide area
service information and local area common service information by receiving wide area
broadcasting signals; receiving a selection on the type of an region-based service
from a user; and when the selected service type is a local area service, receiving
local area broadcasting signals corresponding to a current location based on current
location information and the local area common service information to provide the
local area service.
BRIEF DBSCBIBTION OF THE DRAWINGS
[0016] Fig. 1 is a diagram showing how a broadcasting coverage is divided in a multiple
frequency network (MFN) in accordance with an embodiment of the present invention.
[0017] Fig. 2 illustrates a system of control information for a region-based broadcasting
service in accordance with an embodiment of the present invention.
[0018] Fig. 3 is a flowchart describing a method for providing a Digital Multimedia Broadcasting
(DMB) service based on an area.
[0019] Figs. 4A to 4C illustrate a transmission frame of a wide area ensemble for a region-based
broadcasting service in accordance with an embodiment of the present invention.
[0020] Fig. 5 illustrates a transmission frame of a local area ensemble in accordance with
an embodiment of the present invention.
[0021] Fig. 6 is a block view of a region-based broadcasting service receiving apparatus
in accordance with an embodiment of the present invention.
[0022] Fig. 7 is a flowchart describing a region-based broadcasting service receiving method
of the region-based broadcasting service receiving apparatus in accordance with an
embodiment of the present invention.
[0023] Fig. 8 is a flowchart describing an automatic alarm service providing method in accordance
with an embodiment of the present invention.
DESCRIPTION OF SPECIFIC EMBODIMENTS
[0024] The present invention separates and provides diverse multimedia services including
audio, video and data according to each service area through a terrestrial Digital
Multimedia Broadcasting (T-DMB) network. In other words, the present invention divides
a service area into small areas where DMB broadcasting signals are received according
to coverage of broadcasting signals and separately provide a service specified to
the small area.
[0025] Particularly, the present invention provides typical T-DMB service through the T-DMB
network as well as services specified for an area or location by dividing a service
area into wide areas and local areas according to the coverage of broadcasting signals
and separately transmitting data related to each area.
[0026] A region-based broadcasting service receiving apparatus of the present invention
includes a wide area data receiving module and a local area data receiving module
separately to thereby provide a region-based broadcasting service by receiving both
or any one of wide region-based data and local region-based data.
[0027] To take an example, the method of the present invention divides a broadcasting services
area into a wide area and local areas and provides a common service to the wide area
and provides a limited service related to a specific local area to the local area.
In this way, the method of the present invention can provide not only a DMB service
in a mobile environment efficiently but also additionally provide diverse local region-based
or location-based services related to a specific local area or the location of a user.
[0028] The advantages, features and aspects of the invention will become apparent from the
following description of the embodiments with reference to the accompanying drawings,
which is set forth hereinafter. Also, when it is considered that detailed description
on a conventional technology may obscure a point of the present invention, the description
will not be provided herein. Hereafter, specific embodiments of the present invention
will be described in detail with reference to the accompanying drawings.
[0029] Fig. 1 is a diagram showing how a broadcasting coverage is divided in a multiple
frequency network (MFN) in accordance with an embodiment of the present invention.
The drawing illustrates a concept that a broadcasting coverage of a wide area is divided
into local areas.
[0030] In accordance with an embodiment of the present invention, a broadcasting coverage,
which means an area where a conventional terrestrial Digital Multimedia Broadcasting
(DMB) service is provided, is divided into wide areas each covering a metropolis and
then each wide area is divided again into local areas to hierarchically provide a
mobile DMB service according to each local area.
[0031] Herein, a wide area 10, such as Daejon metropolitan city, includes one or more local
areas 101a to 101c, 102a to 102c, and 103a to 103c, such as Yuseong-gu and Jeonmin-dong.
A common service is scheduled and provided to all of the local areas 101a to 101c,
102a to 102c, and 103a to 103c that belong to the wide area 10.
[0032] As for the local areas 101a to 101c, 102a to 102c, and 103a to 103c, a service limited
to a local area is provided. The local areas 101a to 101c, 102a to 102c, and 103a
to 103c use a frequency different from that of the wide area 10, which thereby constitutes
a Multiple Frequency Network (MFN).
[0033] According to specific embodiments of the region-based service providing method which
is suggested in the present invention, when a user moves to a specific location of
a local area while receiving a wide area service, a receiving apparatus of the user
receives a service specifically provided to the local area automatically or upon a
request from the user, asks the user of whether to receive the area-specific service
or not, and provides the user with the service if the user selects using the local
area service.
[0034] Such a region-based service can provide the mobile user with beneficial information
related to the location of the user. For example, when the user is located near an
amusement park along with his family, he does not have to deliberately make an access
to a mobile communication network or a cable network to find out event or local information
of the amusement park but he can simply acquire information related to the amusement
park from local-area DMB signals broadcasted to the corresponding local area.
[0035] In order to provide the region-based service, the first thing to do is to provide
one or more service information (SI) on local area DMB ensembles, which will be simply
referred to as local area service information, and to efficiently form and provide
service information and service data for a local area.
[0036] To satisfy the first conditions, the present invention includes local area service
information in a wide area ensemble (see Fig. 2) and includes service information
and service data of a corresponding local area in each local-area ensemble.
[0037] Fig. 2 illustrates a system of control information for a region-based broadcasting
service in accordance with an embodiment of the present invention.
[0038] Service information to be included in a wide area terrestrial DMB, which will be
referred to as a wide area ensemble, generally includes the frequency of each local
area, location of a transmitter, and coverage information where broadcasting signals
propagate. Hereafter, among service information included in a wide area ensemble,
service information only dedicated to a wide area service will be referred to as 'wide
area service information' while service information commonly applied to the entire
or some local areas in connection with a local area service will be referred to as
'local area common service information.' In addition, service information limited
to a specific local area, which is included in a local area ensemble and transmitted
in connection with a specific local-area service will be referred to as 'local area-specific
service information.'
[0039] Referring to Figs. 4A to 4C, a wide area ensemble includes general ensemble-related
information on a T-DMB ensemble, which will be referred to as 'local area ensemble,'
and related location information. Besides, the wide area ensemble includes additional
related information to provide a local region-based occasional service, which is automatically
informed to a user.
[0040] Also, unlike ensemble-related information provided by a conventional Digital Audio
Broadcasting (DAB), the wide area ensemble includes identification information, which
is called an ensemble identifier, to identify a local area ensemble existing in a
wide area. In other words, although conventional DAB/DMB service providing methods
provide information on other ensembles, and service information or announcement information
of the other ensembles, the present invention forms in group service information to
be commonly/generally applied to local area ensembles that constitute a wide area
and provides the grouped service information.
[0041] To be specific, the wide area ensemble (see Figs. 4A to 4C) includes local area common
service information to be commonly applied to the local areas that belong to the wide
area. In short, a wide area ensemble includes service information related to a wide
area service, and service information to be commonly applied to the entire or some
local areas of a wide area. Service information used in connection with the present
invention not only includes control information of a narrow meaning but also includes
diverse additional information except for substantial service data for a corresponding
area service, such as service information (see Fig. 2).
[0042] A method for providing local area common service information, suggested in the present
invention, includes a method of adding an additional field to an existing DAB FIG
to form local area common service information or a method of allocating an additional
sub-channel to a main service channel based on DAB exclusive Markup Language (XML)
to thereby form and provide XML data, as illustrated in Figs. 4A and 4B. Also, the
present invention can provide local area common service information in diverse data
forms other than the above-mentioned methods.
[0043] As for the transmission of local area service information, local area common service
information should be transmitted through a wide area ensemble, while local area-specific
service information should be transmitted through each local area ensemble. Herein,
the local area common service information and/or the local area-specific service information
may include additional announcement information. The announcement information corresponds
to information on a service or data, which should be necessarily received, when a
user is located in the coverage of a local area. The announcement information is needed
when a service provider compels users informed of the existence of a service or data
to be provided to the users.
[0044] Referring to Fig. 2, service information available in connection with a region-based
service is divided into service information 20 for a wide area, which is a group of
local areas, and service information 201 to 204 for a plurality of local areas that
belong to the wide area. Service information on each local area is again divided into
local area common service information, which is in common among the entire or some
local areas, and local area-specific service information, which is related only to
a specific local area.
[0045] A field of a service information 201 that is related to a wide area may include a
group identifier, wide area location information, coverage information, the number
of local area ensembles, whether there is an announcement service and the like. Herein,
if there are a plurality of wide areas, the group identifier is a wide area identifier
for identify each wide area. The group identifier may be the same as a transmitter
identifier indicator (TII) or it may be a group identification code individually given.
The location information and the coverage information stand for a specific location
of a transmitter or a wide area service region and coverage information around the
specific location. The number of local area ensembles means the number of local area
ensembles existing in a wide area and it includes local area ensemble service information
201 to 204 as many as the number in the lower rank.
[0046] Also, the wide area service information may additionally include information on whether
there is automatic announcement service. The information on whether there is automatic
announcement service is a field informing that there is a local area service or a
service like an occasional event which should be automatically informed to all users
in the coverage of a certain local area constituting a wide area.
[0047] Using the automatic announcement service field is advantageous in that when a user
is in the cover of a specific local area service, a region-based service provider
can automatically inform the user of an advertisement, occasional event, or important
announcement information. Also, the user does not have to be bothered by setting his
terminal to a broadcasting channel for the local area to receive those informations
specific to the local area.
[0048] To take an example of using the automatic announcement service field, if there is
a special occasion at an amusement park of a certain local area, the local region-based
service provider can provide all users in the coverage of the local area with the
occasional event information automatically or compulsorily. The technology of the
present invention can automatically provide information or similar services of diverse
forms.
[0049] Fig. 3 is a flowchart describing a method for providing a Digital Multimedia Broadcasting
(DMB) service based on an area.
[0050] In a region-based broadcasting service providing system of the present invention,
wide area transmission frames including 'wide area service-related data,' which are
wide area service information and wide area service data, and 'local area common service
information to be commonly applied to a local area which belongs to the wide area'
are generated at step S300. The generation of the wide area transmission frame will
be described in detail with reference to Figs. 4A to 4C.
[0051] At step S302, the generated wide area transmission frames are transformed into broadcasting
signals and broadcasted over the wide area.
[0052] Figs. 4A to 4C illustrate a transmission frame of a wide area ensemble for a region-based
broadcasting service in accordance with an embodiment of the present invention.
[0053] Local area common service information, which is service information commonly applied
to all or some local area bands (or local area ensembles) existing in a wide area,
can be transmitted through any one of the following three methods.
[0054] First, as shown in Fig. 4A, local area common service information is transmitted
by forming a separate Fast Information Group (FIG) 411 in a Fast Information Channel
(FIC) 41. In other words, wide area service information and the local area common
service information 411 are included in the FIC 41, and wide area service data are
included in a Main Service Channel (MSC) 42 to be transmitted.
[0055] Second, as shown in Fig. 4B, a local area sub-channel 421 is formed in the main service
channel 42 and data are transmitted in the form of XML or binary stream, text or another
available data form. In short, wide area service information is included in the FIC
41 and the main service channel 42 is divided into sub-channels and. The local area
common service information 421 and wide area service data are included in the different
sub-channels to be transmitted.
[0056] Third, as shown in Fig. 4C, data are separately transmitted through a FIG 431 of
the FIC 41 and sub-channels 432 of the FIG 431 and MSC 42. In other words, wide area
service information is included in the FIC 41 and wide area service data are include
din the main service channel 42 to be transmitted, while the local area common service
information is separately included in the sub-channels 431 and local area sub-channel
421 of the FIC 41 and the main service channel 42 to be transmitted.
[0057] Fig. 5 illustrates a transmission frame of a local area ensemble in accordance with
an embodiment of the present invention.
[0058] The local area transmission frame is the same as the existing T-DMB structure. If
there is any difference, FIC 51 corresponds only to a local area FIC (L-FIC) and it
includes service information limited only to a corresponding local area, which is
referred to as local area-specific service information.
[0059] A main service channel 52 includes local area data (L-data).
[0060] Fig. 6 is a block view of a region-based broadcasting service receiving apparatus
in accordance with an embodiment of the present invention. Hereafter, the region-based
broadcasting service receiving apparatus of the present invention will be simply referred
to as a 'region-based DMB reception terminal.'
[0061] The region-based DMB reception terminal 60 of the present invention simultaneously
receives a wide area service and a local area service by forming one or more T-DMB
baseband processing modules, which correspond to the elements 602 and 603 shown in
Fig. 6). Also, the region-based DMB reception terminal 60 acquires real-time location
information of a user by separately forming a location information acquisition module
601, receive a service of the corresponding area where the user is located, and provides
the location information periodically or upon a request of a user to provide the user
with services and contents associated with the location.
[0062] Referring to Fig. 6, the region-based DMB reception terminal 60 of the present invention
includes a location information acquiring unit 601, a wide area data receiver 602,
a local area data receiver 603, and a region-based service processor 604. Hereafter,
the constituent elements will be described in detail.
[0063] The location information acquiring unit 601 measures a location information of the
region-based DMB reception terminal 60 based on location signals transmitted from
a Global Positioning System (GPS) 62 or a DMB transmitter_ and the local area data
receiver 603 receives DMB signals of the location based on the measured location information.
The technology of the present invention can separately provide users with contents
or services related to the location of the user or an area through the region-based
service processor 604 based on the measured location information.
[0064] The wide area data receiver 602 receives DMB signals, which are wide area broadcasting
signals, transmitted through a wide area channel to acquire wide area service information
and local area common service information. In other words, the wide area data receiver
602 receives local area common service information transmitted through a wide area
channel and transmits it to the region-based service processor 604. The transmitted
local area common service information is used for providing a local area service.
[0065] The local area data receiver 603 receives local area-specific service information
and service data of the local area from local area-specific broadcasting signal, which
are broadcasting signals of the local area where a current region-based DMB reception
terminal 60 is located, based on the local area common service information transmitted
from the wide area data receiver 602 and the location information transmitted from
the location information acquiring unit 601. Herein, since the wide area broadcasting
signals use different frequency from that of the local area broadcasting signals,
the region-based DMB reception terminal 60 can simultaneously receive and process
the broadcasting signals of the two kinds.
[0066] The region-based service processor 604 provides the users with services, programs,
and contents transmitted through the wide area data receiver 602 and the local area
data receiver 603 according to the location of a user.
[0067] To be specific, the region-based service processor 604 receives service, program,
or contents that are related to a specific area or location through the wide area
data receiver 602 and the local area data receiver 603 to provide a service corresponding
to the specific area or location based on the location information measured by the
location information acquiring unit 601 or location information (which is TII and
location information of the TII) transmitted through a T-DMB network, and provides
the users with services according to an area or location.
[0068] For example, the region-based service processor 604 provides information related
to a specific location or an area, such as district information of a specific district,
an amusement park, a department store, a discount store, an education institute (e.g.,
school affairs information of university), a government or public office, a tourist
attraction, a residential area (e.g. condominium complex), hospital, village information,
diverse types of organizations (religious organization), an airport, transportation
terminal, station and so forth.
[0069] Fig. 7 is a flowchart describing a region-based broadcasting service receiving method
of the region-based broadcasting service receiving apparatus in accordance with an
embodiment of the present invention.
[0070] When the region-based DMB reception terminal 60 operates to provide a region-based
service, at step S700, it receives and processes wide area broadcasting signals to
acquire wide area service information and local area common service information. Herein,
the reception process includes receiving and managing the wide area service information
and the local area common service information upon a request of a user. This signifies
that the region-based DMB reception terminal 60 receives the wide area service information
and the local area common service information automatically and periodically. The
wide area service information and the local area common service information generally
include the informations shown in Fig. 2, other than the wide area service information
and local area service information provided by a conventional DMB system.
[0071] The region-based broadcasting service of the present invention provides any one of
the following three types according to a mode selected by a user.
[0072] First, when a user selects a wide and local area service simultaneous reception mode
at step S702, the region-based DMB reception terminal 60 acquires wide area service
information and local area common service information from wide area broadcasting
signals and acquires local area-specific service information and local area service
data from local area broadcasting signals to thereby provide a user with both wide
area service and local area service.
[0073] Herein, the local area service receiving process of steps S708 to S712 is as follows.
At step S708, location information of the local area common service information is
acquired. At step S710, the region-based DMB reception terminal 60 receives local
area broadcasting signals corresponding to the acquired location information to thereby
acquire local area-specific service information. At step S712, the region-based DMB
reception terminal 60 receives service data of the corresponding local area from the
local area broadcasting signals based on local area service information, which includes
local area common service information and local area-specific service information
to there by provide a corresponding service.
[0074] In other words, the location information is acquired by using a GPS or from DMB signals
at the step S708. At the step S710, the local area-specific service information corresponding
to the acquired location is received by receiving service information broadcasted
over the corresponding local area. According to an embodiment, an electronic grogram
guide (EPG) is formed using wide area service information, local area common service
information, and local area-specific service information and provided to the user.
[0075] Subsequently, at step S712, local area service data are acquired from broadcasting
signals of the corresponding local area automatically or upon a request from a user
to thereby provide a service corresponding to the local area service data.
[0076] Second, when the user wants to receive only the local area service at steps S702
and 714, the region-based DMB reception terminal 60 receives the location information
at the step S708, receives local area-specific service information of the corresponding
local area, acquires the local area service data and provides the service at step
S712. The processes are the same as the case when the region-based DMB reception terminal
60 is set in the wide/local area service simultaneous reception mode.
[0077] Third, when the user wants to receive only the wide area, the region-based DMB reception
terminal 60 drives only the wide area data receiver 602 of Fig. 6 and acquire wide
area service data from wide area broadcasting signals to thereby provide the user
with a service corresponding to the wide area service data at the step S714.
[0078] Fig. 8 is a flowchart describing an automatic alarm service providing method in accordance
with an embodiment of the present invention. The drawing shows an automatic announcement
service when region-based broadcasting service information shown in Fig. 2 is used.
[0079] At step S800, the region-based DMB reception terminal 60 receives automatic announcement
service information, such as information on whether there is an automatic announcement
service, based on the local area common service information provided by wide area
ensembles.
[0080] At step S802, the region-based DMB reception terminal 60 detects the location of
a user, that is, the location of the region-based DMB reception terminal 60 in a corresponding
local area.
[0081] At step S804, the region-based DMB reception terminal 60 checks if there is an automatic
announcement service in a local area where the region-based DMB reception terminal
60 is located based on the automatic announcement service information obtained in
the step S800 and the location information obtained in the step S802.
[0082] If there is an automatic announcement service in the local area, the region-based
DMB reception terminal 60 receives automatic announcement service data from corresponding
local area broadcasting signals and provides the user with the announcement service.
Otherwise, if there is no automatic announcement service in the local area, the logic
flow goes back to the initial stage, which is the step S800.
[0083] Meanwhile, the method of the present invention described above may be programmed
for a computer. Codes and code segments constituting the computer program may be easily
inferred by a computer programmer of ordinary skill in the art to which the present
invention pertains. The computer program may be stored in a computer-readable recording
medium, i.e., data storage, and it may be read and executed by a computer to realize
the method of the present invention. The recording medium includes all types of computer-readable
recording media.
[0084] As described above, the present invention provides mobile users with information,
service, or contents specified for a specific area by providing a DMB service based
on an area or location, or diverse information related to the location of the mobile
user. Embodiments of the present invention can maximize the experience of the user
and provide the users with diverse information and service by providing the service
based on an area or location.
[0085] In short, the present invention provides area-specific service only to the area when
it provides DMB service such as audio, video and data in a mobile environment.
While the present invention has been described with respect to the specific embodiments,
it will be apparent to those skilled in the art that various changes and modifications
may be made without departing from the spirit and scope of the invention as defined
in the following claims.
1. A method for providing a region-based Digital Multimedia Broadcasting (DMB) service,
comprising:
generating a wide area transmission frame including data related to a wide area service
and local area common service information to be commonly applied to a plurality of
local areas belonging to a wide area; and
transforming the generated wide area transmission frame into a broadcasting signal
and transmitting the broadcasting signal over the wide area.
2. The method of claim 1, wherein the data related to the wide area service includes
wide area service information and wide area service data.
3. The method of claim 2, wherein in said generating a wide area transmission frame including
data related to a wide area service and local area common service information,
the wide area service information and the local area common service information are
included in a fast information channel (FIC) and the wide area service data is included
in a main service channel (MSC).
4. The method of claim 2, wherein in said generating a wide area transmission frame including
data related to a wide area service and local area common service information,
the wide area service information is included in a FIG, and the main service channel
is divided into sub-channels and the local area common service information and the
wide area service data are included in different sub-channels.
5. The method of claim 2, wherein in said generating a wide area transmission frame including
data related to a wide area service and local area common service information,
the wide area service information is included in a FIC, and the wide area service
data are included in the main service channel in such a manner that the local area
common service information is separately included in the FIC or in sub-channels of
the main service channel.
6. A broadcasting service receiving apparatus for receiving a region-based broadcasting
service, comprising:
a location information acquiring means for acquiring current location information
of the broadcasting service receiving apparatus;
a wide area data receiving means for extracting wide area service-related data and
local area common service information from wide area broadcasting signals;
a local area data receiving means for receiving local area broadcasting signals corresponding
to the current location information and extracting local area service-related data
from the local area broadcasting signals based on the acquired current location information
and the extracted local area common service information; and
a region-based service processing means for receiving corresponding extracted information
from at least one between the wide area data receiving means and the local area data
receiving means according to a selection made by a user to provide a region-based
service.
7. The broadcasting service receiving apparatus of claim 6, wherein the wide area service-related
data include wide area service information and wide area service data, and
the local area service-related data include local area-specific service information
and local area service data.
8. The broadcasting service receiving apparatus of claim 6 or 7, wherein the region-based
service processing means provides any one service among a local area service, a wide
area service, and a wide and local area simultaneous service according to a selection
made by a user.
9. The broadcasting service receiving apparatus of claim 6, 7 or 8, wherein the region-based
service processing means checks whether there is an automatic announcement service
based on the local area common service information and when there is an automatic
announcement service provided, acquires automatic announcement service data from local
area broadcasting signals to provide the announcement service.
10. The broadcasting service receiving apparatus of one of claims 6 to 9, wherein the
wide area broadcasting signals and the local area broadcasting signals use different
frequencies.
11. A method for receiving a region-based broadcasting service, comprising:
acquiring wide area service information and local area common service information
by receiving wide area broadcasting signals;
receiving a selection on the type of an region-based service from a user; and
when the selected service type is a local area service, receiving local area broadcasting
signals corresponding to a current location based on current location information
and the local area common service information to provide the local area service.
12. The method of claim 11, wherein in said receiving local area broadcasting signals
corresponding to a current location based on current location information and the
local area common service information to provide the local area service,
local area-specific service information and local area service data are acquired from
the received local area broadcasting signals and the local area service is provided.
13. The method of claim 11 or 12, wherein in said receiving a selection on the type of
an region-based service from a user,
when the selected service type is the wide area service, wide area service data are
acquired from the wide area broadcasting signals and the wide area service is provided
based on the wide area service information and the wide area service data.
14. The method of claim 13, wherein in said receiving a selection on the type of an region-based
service from a user,
when the selected service type is the wide and local area simultaneous service, the
local area service and the wide area service are provided together.
15. The method of claim 12, 13 or 14, further comprising:
checking whether there is an automatic announcement service based on the local area
common service information; and
when there is an automatic announcement service provided, acquiring automatic announcement
service data from broadcasting signals of a corresponding local area to provide the
automatic announcement service.