KR20010004512A - Apparatus and method for broadcasting services of cdma mobile telecommunication system - Google Patents

Abstract

end. The technical field to which the invention described in the claims belongs

The present invention relates to a service method of a mobile communication system using a code division multiple access scheme, and more particularly, to a broadcast service apparatus and method.

I. The technical problem that the invention is trying to solve

In a mobile communication system using a code division multiple access method, a mobile station receives, stores, updates, and transmits broadcast data from remote hosts, and a corresponding base station time-divisions a predetermined code channel into a plurality of broadcast subchannels, and the mobile station The present invention provides a broadcast service apparatus and method capable of receiving broadcast data according to a selected broadcast channel and a reception time by switching to a broadcast reception mode.

All. Summary of the Solution of the Invention

The channel classification codes allocated for broadcast use are multiplied, and the plurality of sub-cast channels transmit broadcast data and in-band paging information alternately in units of paging channel slot intervals.

la. Important uses of the invention

Broadcast service of mobile communication system.

Description

Broadcasting service apparatus and method for code division multiple access mobile communication system {APPARATUS AND METHOD FOR BROADCASTING SERVICES OF CDMA MOBILE TELECOMMUNICATION SYSTEM}

The present invention relates to a service method of a mobile communication system using a code division multiple access scheme, and more particularly, to a broadcast service apparatus and method.

The code division multiple access (hereinafter referred to as CDMA) mobile communication system has been developed in the IS-95 standard, which mainly focuses on voice, and has been discussed as an IMT-2000 capable of transmitting not only voice but also high-speed data. The IMT-2000 standard aims to provide services such as high quality voice, moving picture, and Internet search.

The components of the mobile communication system can be divided into a base station and a mobile station. In addition, the base station controls a base transmission system (Base Transmission System) for performing a wireless connection between the mobile stations and a plurality of base station transmission system and performs a base station (Call Mobility Management) related to call processing (Call Mobility Management) Can be separated by). In addition, the mobile communication system includes a mobile switching center for transmitting and receiving data and control signals with other communication networks, and a base station manager for operating and maintaining the entire mobile communication system. ) May be included.

In general, a communication line existing between a mobile station and a base station in a CDMA mobile communication system is largely a reverse link from a mobile station to a base station as opposed to a forward link from a base station to a mobile station. ). In addition, in a CDMA mobile communication system, a forward channel may be classified into a pilot channel sync channel, a paging channel, and a forward traffic channel. In the CDMA mobile communication network, a reverse channel may be divided into an access channel and a reverse traffic channel.

1 is a diagram illustrating an example of a type of a forward code channel of a CDMA mobile communication system.

As shown in the figure, in the CDMA mobile communication system, the channel for the broadcasting function does not exist separately in the code channel of the forward link from the base station to the mobile station. The code channel of the forward link can be divided into orthogonal codes for channel classification, such as 64 Walsh orthogonal codes. When the code channel of the forward link is divided into Walsh orthogonal codes, the pilot channel uses Walsh code 0 and is used to distinguish the base station. The paging channel uses Walsh code 1 to Walsh code 7, and when there is a call to the mobile station, the base station calls the mobile station through the paging channel. The base station transmits a short message such as a short message or an asynchronous data service through the paging channel.

The synchronization channel also uses Walsh code 32 and is used by the mobile to synchronize with the base station. The message transmitted through the synchronization channel may be a pilot PN offset, a system time, a long PN state, a system ID, a network ID, and a transmission rate of a paging channel. The traffic channel uses Walsh codes 8 to Walsh code 63 and is used to transmit user data such as voice data, packet data, and circuit data to the corresponding mobile station. The base station allocates different Walsh codes when a communication channel with each mobile station is established.

In general, in a mobile communication system, when a mobile station receives a call message from a base station in a call waiting state, the mobile station enters a call mode from this time. In other words, from the user's point of view, the mobile station feels like it is doing nothing except during the actual call operation. Therefore, since the user usually carries the mobile station, there is a case where the user wants to use other uses of the mobile station in addition to the actual call operation. For example, a user may wish to show in color graphics broadcasts such as news or advertisements so that the mobile station can feel a small television function through the display in addition to the talk time.

On the other hand, in a CDMA system, in order for a base station to broadcast a short message service to a plurality of mobile stations, information can be transmitted only to all mobile stations currently located in a cell. In other words, the base station was unable to selectively broadcast a plurality of mobile stations that wanted to receive broadcasts using a short service.

In addition, the base station may transmit broadcast information to each mobile station individually by calling only a specific telephone number when using the short message service. However, even in the above case, the base station checks the telephone number of each registered mobile station in the HLR (Home Location Register) and the VLR (Vigitor Location Register) to provide a short message. Shall be transmitted to each mobile station. As a result, the base station needs to transmit a call message for each mobile station that wants to receive a broadcast service, which may cause excessive system-wide paging load. For example, suppose there are 100 mobile stations in a given cell. When the base station wants to provide a broadcasting service using a short service to 20 mobile stations among the 100 mobile stations, 20 individual calls are required. In addition, 50 separate calls are required for 50 mobile stations. However, as mentioned above, this causes excessive paging load. In addition, since the short message service has a limited amount of data transmission, the base station cannot easily support a broadcast service with a large amount of transmission data such as a graphic service.

In addition, when a broadcast service is formed by forming an individual call channel using a conventional traffic channel, the number of users who can receive a broadcast service is limited because traffic channel resources are limited. In the related art, a specific data service provided by a remote host (such as a newspaper company server or a broadcasting station server), for example, graphic advertisements and sports news, is not provided for some subscribers.

As described above, the conventional CDMA mobile communication system does not provide a broadcast service, and there is no separate channel for a broadcast service in the conventional CDMA code channel. In addition, it can be seen that it is difficult for a base station to support a large amount of broadcast services by using a short service, and it is impossible to selectively broadcast a plurality of mobile stations. In addition, there is a problem in that the number of users who can receive the broadcast service is limited because the traffic channel resources are limited when the broadcast service is formed by forming individual call channels using the conventional traffic channel.

Accordingly, an object of the present invention is to transmit, receive, store, update, and transmit broadcast data from remote hosts in a mobile communication system using a code division multiple access scheme, and the base station transmits a predetermined code channel to a plurality of broadcast subchannels. The present invention provides a broadcast service apparatus and a method in which time-divisional broadcasting is performed and the mobile station switches to a broadcast receiving mode and receives broadcast data according to a selected broadcast channel and a reception time.

Another object of the present invention is to provide a broadcasting server provided to a mobile broadcasting station in a mobile communication system using a code division multiple access scheme to receive and store broadcast data from remote hosts through a computer network, and to store and update the data in a broadcasting database. The broadcast management server provided in the mobile broadcasting station is connected to the mobile switching center to receive broadcast database related statistical information, and manages broadcast data provider and user information. It uses a predetermined code channel exclusively for broadcasting and broadcasts time-divided broadcast data into lower channels, and receives broadcast data according to a broadcast channel and a reception time selected by a corresponding mobile station, wherein the base station broadcasts data in units of paging channel slots. Alternating with In Band Paging The mobile station provides a broadcast service apparatus and method for converting to an in-band paging broadcast receiving mode and checking whether a paging call is made even while receiving broadcast data.

Another object of the present invention is to provide a broadcast channel structure consisting of a plurality of sub-channels are multiplied by the corresponding channel code assigned for broadcasting and time-divided by the time of the unit.

Another object of the present invention is to provide a broadcast channel structure consisting of a plurality of sub-broadcasting channels that are multiplied by the corresponding channel classification code allocated for broadcasting and alternately transmitted broadcast data and In Band Paging information in units of paging channel slot intervals. have.

In addition, another object of the present invention is to multiply the corresponding channel classification code allocated for broadcasting and to transmit broadcasting data and In Band Paging information alternately in units of paging channel slot intervals, and each sub-broadcast channel is assigned to a predetermined paging channel slot interval. The present invention provides a broadcast channel structure for transmitting broadcast data and transmitting paging information of the predetermined paging channel slot interval in a next slot section.

In order to achieve the above object, the present invention provides a broadcast service device of a code division multiple access mobile communication system, comprising: a mobile broadcasting station for receiving, storing, updating, and transmitting broadcast data from remote hosts; and a broadcast output from the mobile broadcasting station. And a base station that broadcasts the broadcast data to mobile stations through a corresponding forward code channel dedicated to broadcast.

The present invention provides a broadcast service method of a code division multiple access mobile communication system comprising: a first step of a mobile station receiving, storing, updating, and transmitting broadcast data from remote broadcast data providing hosts to a base station; A second step of broadcasting the broadcast data to mobile stations through a corresponding forward code channel dedicated to broadcasting; and the base station transmits a broadcast reception mode setting request from the mobile station to the mobile switch. Registering in the L-Al, and when the base station transmits a broadcast menu to the mobile station and transmits the user's selected broadcast menu to the mobile exchange, the mobile exchange transmits statistical information related to the broadcast database for the mobile station. A fourth step of transmitting to the connected mobile broadcasting station and instructions for switching to a broadcast receiving mode of the mobile switching center; Depending characterized made of an a fifth step of receiving the broadcast data according to the selected broadcasting the menu to which the corresponding mobile station switch to the broadcast reception mode.

The present invention is characterized in that a broadcast channel structure in a code division multiple access method mobile communication system is multiplied by a corresponding channel classification code allocated for broadcasting, and is composed of a plurality of sub-broadcast channels time-divided by a corresponding time unit. .

1 is a diagram illustrating an example of a forward code channel type of a CDMA mobile communication system.

2 is a diagram illustrating a structure of a broadcast channel according to an embodiment of the present invention.

3 is a block diagram of a mobile communication system for providing a broadcast service according to an embodiment of the present invention.

4 is a block diagram showing the configuration of a mobile broadcasting station according to an embodiment of the present invention;

5 is a diagram illustrating a broadcast data transmission procedure of a broadcast service according to an embodiment of the present invention.

6A is a diagram illustrating a procedure for releasing a broadcast reception mode at the request of a mobile station in a broadcast service according to an embodiment of the present invention.

6B is a diagram illustrating a procedure for releasing a broadcast reception mode by a mobile switch in a broadcast service according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used as much as possible even if displayed on different drawings. In the following description of the present invention, detailed descriptions of related well-known functions or configurations are omitted when it is determined that the detailed description may unnecessarily obscure the subject matter of the present invention.

In the broadcast channel according to the present invention, a predetermined code channel of a code division multiple access method is used for broadcasting only. The broadcast-only channels are time-divided so that news channels such as major news channels, economic news channels, sports news channels and social news channels, advertising channels such as automobile advertising channels, on-computer advertising channels, local restaurant advertising channels, and weather forecast channels, roads, etc. It is divided into sub-channels such as information channel and securities information channel. The user selects a desired channel among the channels listed above to receive a broadcast. That is, each of the subchannels becomes a media that can deliver news information and advertisement information to the user, like the current television broadcasting.

In addition, the mobile station cannot receive all of the sub broadcast channels due to battery consumption. Accordingly, the mobile station receives only a sports news channel or a weather forecast channel preset by the user. Each of the time-divided subchannels may be leased to a broadcaster or an advertising company that wants to provide news information, advertisement information, and the like.

2 is a diagram illustrating a structure of a broadcast channel according to an embodiment of the present invention. A description with reference to FIG. 1 is as follows.

As shown, the broadcast channel structure 230 expressed in one cycle unit is assigned a specific Walsh orthogonal code and the like. In this case, the specific Walsh code may be a corresponding Walsh code for the traffic channel. The base station performs orthogonal spreading using the corresponding Walsh code with respect to the broadcast information, and time-divides the broadcast-only channel by minute again to broadcast each sub broadcast channel. The time division of the above minute unit is an example in consideration of the data amount of broadcast information such as a graphic, and can be changed in consideration of the data transmission amount and the broadcast information reception time of the mobile station. In an embodiment of the present invention, the number of lower channels is 20, and the number of lower channels is also variable.

On the other hand, the mobile station should periodically monitor the paging slot allocated to the mobile station to check whether the call message is transmitted to the mobile station even while receiving the broadcast information. The CDMA paging channel slot can be divided into slots of 80mS units. In this case, the mobile station may be operated in a slot mode in which a paging channel is monitored only for a specific slot and sleeps for the remaining slots in order to reduce power consumption.

On the other hand, since the transmission of the call message to the mobile station is performed at random, the mobile station may not receive the call message in the paging slot allocated to the mobile station, but may simply receive the broadcast information continuously. In order to solve the above problem, the paging channel slot interval should be an integer multiple of the length of the broadcast channel transmission unit frame. When the paging channel slot duration and the broadcast channel transmission unit frame length are the same, the base station transmits single frame broadcast data in a predetermined slot duration of the paging channel. The base station performs in-band paging of paging information of a predetermined slot section of the paging channel in a next broadcast data transmission frame section. In this case, the in band paging means an operation of calling a mobile station through a channel through which a base station transmits data. When the paging channel slot interval is four times the length of the broadcast channel transmission unit frame, the base station transmits the broadcast data per frame four times in a predetermined slot interval of the paging channel. The base station performs in-band paging of paging information of a predetermined slot section of the paging channel during the next four broadcast data frame sections.

For example, when the slot section of the paging channel is 80mS, the base station can transmit broadcast data in units of 20mS frame four times during the predetermined paging channel slot period.

According to an embodiment of the present invention, each frame of the broadcast channel structure 220 expressed in minutes of FIG. 2 is 20mS, and four frames may be transmitted during a paging channel slot interval. In addition, considering that the mobile station misses its paging channel slot due to broadcast data reception, the base station alternately loads broadcast data and In Band Paging information in units of paging channel slot intervals. That is, the base station transmits broadcast data of a corresponding number of frame units in a predetermined slot section of the paging channel, and transmits paging details of the predetermined slot section of the paging channel to the slot section of the paging channel next to the broadcast data.

As a result, for example, if a mobile station allocated with a first paging slot fails to check its allocated slot due to reception of broadcast data, the mobile station may have the same in-band paging information as that of the first paging slot following the receiving broadcast channel. You can check your paging call by referring to. If a mobile station is allocated a second paging slot, the mobile station may receive broadcast data as it is until the first paging slot period, and perform a normal paging slot check operation in the second paging slot period allocated to the mobile station.

As described above, in the description of FIG. 2, each sub broadcast channel may be time-divided in minutes. The time division of the above minute unit is an example in consideration of the data amount of broadcast information such as the graphic, etc., and may be changed in consideration of the data transmission amount and the broadcast information reception time of the mobile station. Meanwhile, referring to FIG. 2, when the amount of received data of the mobile station in minutes is calculated, the number of broadcast data frames transmitted in one minute is 750 [total number of transmission slots] / 2 [slots of actual broadcast data transmitted] * 4 [Number of frames in each transmission slot unit] = 1500 [frames]. The actual transmission data excluding CRC and header for each 20mS frame can transmit 171 bits when the transmission rate is 9600bps, and 267 bits when the transmission rate is 14400bps. Therefore, the broadcast data that can be transmitted for one minute is 171 [the number of bits of actual data that can be transmitted per frame] * 1500 [the number of broadcast data frames that are transmitted for one minute] = 253500 [bits] or 267 [the actual number of data that can be transmitted per frame]. Number of bits] * 1500 [number of broadcast data frames transmitted in one minute] = 400500 [bits]. The amount of data can be transmitted with still pictures, short moving pictures, and simple animation screens.

1 to 2, in the CDMA mobile communication system according to the embodiment of the present invention, a broadcast-only channel structure uses a predetermined code channel in a CDMA forward direction, and the broadcast-only channel is time-divided and It is divided into lower channels. The paging channel slot interval is an integer multiple of the length of the broadcast channel transmission unit frame to monitor whether a call message is transmitted while the mobile station is receiving broadcast data. The base station alternately loads broadcast data and In Band Paging information in units of paging channel slot intervals. In addition, the time division unit of each lower channel is determined in consideration of the data transmission amount and the broadcast information reception time of the mobile station.

3 is a diagram illustrating a configuration of a mobile communication system for providing a broadcast service according to an embodiment of the present invention. Hereinafter, a description will be given with reference to FIGS. 1 and 2.

The base station transmission system 310 to base station transmission system 314 are connected to the corresponding base station controller 316 to base station controller 318, respectively, and are responsible for wireless connection with each mobile station (not shown). The base station controller 316 to base station controller 318 intervene in overall call processing such as a voice call, a circuit call, a packet call, and the like for each mobile station. , Signaling operation with the mobile switch 320 is performed. And, as shown, the mobile switch 320 is responsible for the transmission and reception paths of data and control signals with the public telephone network 326 and the computer network (328). The computer network 328 may be an internet network. In this case, the IWF (Inter-Working Function) 324 has a fax (FAX), a modem pool, and an internet matching function. That is, when the mobile station requests data communication services such as PC communication, Internet communication, and fax communication, the IWF 324 interworks with the mobile switching center 320 to perform data communication with the fax / modem in the public telephone network 326 or the Internet. The matching function allows the mobile station to use the Internet service. At this time, the data from the mobile station to the IWF 324 has a packet data format using the IS-707 standard. The IWF 324 is also connected to a broadcasting server 334 of the mobile station 330 according to an embodiment of the present invention. The mobile switch 320 performs a registration procedure such as power-up registration, power-down registration, location registration, and additional service registration of a predetermined mobile station. It is registered in the Home Location Register (HLR) / Visitor Location Regiser (VLR) 322. The mobile switch 320 registers the broadcast service state of the mobile station with the HLR / VLR 322 according to the embodiment of the present invention.

The broadcast server 334 included in the mobile broadcasting station 330 is connected to the computer network 328 to receive broadcast data from remote hosts such as a news providing host 338 and an advertisement providing host 339 and the like. It stores and updates in the database 336, and transmits the stored broadcast data to the mobile station via the IWF 324, the mobile switch 320, the base station controller and the base station transmission system. The base station and the base station controller transmit the broadcast data to the corresponding mobile station through the broadcast channel structure described in detail with reference to FIG.

And the broadcasting management server (Broadcasting Management Server) 332 provided in the mobile station 330 is an operation & maintenance process (Operation & Maintenance Process) (not shown) in charge of the operation and maintenance provided in the mobile switch 320 And broadcast DB related statistical information according to an embodiment of the present invention. The broadcast DB related statistical information may be a number of a corresponding user, a type of a broadcast channel, and reception time information. In this case, the statistical information may be used to determine the broadcast service fee of the user. In addition, the broadcast management server 332 may manage information of providers and users of broadcast databases such as broadcasting stations and advertisers. In this case, the broadcast database user information may be the number of the corresponding user, the type of the received broadcast channel, and the reception time information. In addition, the broadcast database provider information may be received user incentive information, such as a discount rate information when the broadcast provider receives a broadcast channel from a broadcast provider that rents a predetermined lower broadcast channel. In addition, the broadcast management server 332 manages the broadcast server 340 for transmitting broadcast data using a database management.

4 is a block diagram showing the configuration of a mobile broadcasting station according to an embodiment of the present invention. Hereinafter, a description will be given with reference to FIG. 3.

As shown, the broadcast server 340 of FIG. 3 may be configured of a plurality of broadcast servers 341 to 34N. The broadcast database 336, the broadcast management server 332, and the broadcast server 341 to 34N may be connected to a LAN. At this time, the broadcast server 341 to 34N receive broadcast data from remote hosts, and store and update the broadcast data in the broadcast database 336. The broadcast server 341 to 34N output broadcast data stored in the broadcast database 336. The data MUX / DEMUX 411 to data MUX / DEMUX 41N multiplex / demultiplex the broadcast data from the broadcast server 341 to the broadcast server 34N, and the data communication port 401 to. The data is output to the IWF 324 via the data communication port 408. The data communication ports may be modems.

In addition, the broadcast management server 332 is connected to an operation & maintenance process (not shown) in charge of operation and maintenance provided in the mobile switch 320 (broadcast) according to an embodiment of the present invention Receive DB related statistics. The broadcast management server 332 is responsible for provider management and user management of the broadcast database.

5 is a diagram illustrating a broadcast data transmission procedure of a broadcast service according to an embodiment of the present invention. Hereinafter, a description will be given with reference to FIGS. 1 to 4.

In operation 500, the broadcast server 340 receives and stores and updates broadcast data from broadcast data providing hosts at remote locations.

In step 505, the mobile station requests the service base station transmission system / base international controller to set the broadcast reception mode. In step 510, the service BS transmission system / base international controller requests the mobile switch 320 to set a broadcast reception mode. In operation 515, the mobile switch 320 registers the broadcast service of the mobile station with the HLR / VLR 322. If the mobile station is capable of broadcasting service, in step 520, the HLR / VLR 322 registers the mobile station in a broadcasting service state and transmits an ACK message to the mobile switching center 320. In operation 525, the mobile switch 320 instructs to transmit a broadcast menu to the service base station transmission system / base international controller. In this case, the broadcast menu may be a selection menu for the broadcast lower channel and the reception time of FIG. 2. In step 530, the service base station transmission system / base international controller transmits the broadcast menu to the corresponding mobile station. At this time, a Call Cotrol Process (not shown) provided in the service base station transmission system / base international controller can transmit the broadcast menu to the mobile station. In addition, the broadcast menu may be transmitted through a traffic channel. The broadcast menu may be pre-stored in the call control unit during initial operation such as powering up the service base station transmission system / base international controller, and the broadcast menu may be updated.

If the user selects a type of broadcast channel in a desired time zone in step 535, the mobile station transmits a selection of a broadcast menu to the service base station transmission system / base international controller in step 540. In step 545, the service base station transmission system / base international controller transmits the broadcast menu selection of the user to the mobile switching center 320. In operation 550, the mobile switch 320 transmits broadcast DB related statistical information to the broadcast management server 332. In addition, an operation / maintenance unit (not shown) provided in the mobile switch 320 may transmit the broadcast DB related statistical information to the broadcast management server 332. The broadcast DB related statistical information may be a number of a corresponding user, a type of a selected broadcast channel, and reception time information. In this case, the statistical information may be used to determine the broadcast service fee of the corresponding user.

In operation 555 and 560, the mobile switch 320 instructs the mobile station to switch to the broadcast reception mode. The mobile station enters a broadcast reception mode in step 565 and receives corresponding broadcast data transmitted from the broadcast server 340 via the IWF 324 according to the selected broadcast menu. The mobile station also checks its own call message while receiving the broadcast data in the In Band Paging mode described above with reference to FIG.

FIG. 6A is a diagram illustrating a procedure for releasing a broadcast reception mode at the request of a mobile station in a broadcast service according to an embodiment of the present invention. Hereinafter, a description will be given with reference to FIGS. 1 to 5.

In step 61a, the mobile station requests the service base station transmission system / base international controller to release the broadcast reception mode. In step 62a, the service base station transmission system / base international controller requests the mobile switch 320 to release the broadcast reception mode. In operation 63a, the mobile switch 320 releases the broadcast reception mode of the mobile station. In this case, the HLR / VLR 322 performs an operation such as switching the corresponding broadcast service flag (Flag), and in step 64a, the HLR / VLR 322 transmits a broadcast reception mode release ACK to the mobile switch 320. The mobile switch 320 transmits a broadcast reception mode release ACK to the corresponding mobile station in steps 65a and 66a. In operation 67a, the mobile switch 320 transmits broadcast DB related statistical information to the broadcast management server 332. The broadcast DB related statistical information may be a number of a corresponding user, a type of a broadcast channel, and reception time information of the user's actual broadcast data. In this case, the statistical information may be used to determine the broadcast service fee of the corresponding user.

6B is a diagram illustrating a procedure for releasing a broadcast reception mode by a mobile switch in a broadcast service according to an embodiment of the present invention. Hereinafter, a description will be given with reference to FIGS. 1 to 6A.

The procedure of FIG. 6B may be used when the user forgets to release the broadcast reception mode.

The mobile switch 320 instructs the mobile station to release the broadcast reception mode through the steps 61b and 62b after a preset time elapses after starting the broadcast service for the mobile station. The mobile switch 320 releases the broadcast reception mode of the mobile station in step 63b. In this case, the HLR / VLR 322 performs an operation such as switching the corresponding broadcast service flag (Flag), and in step 64b, the HLR / VLR 322 transmits a broadcast reception mode release ACK to the mobile switch 320. In operation 65b, the mobile switch 320 transmits broadcast DB related statistical information to the broadcast management server 332. The broadcast DB related statistical information may be a number of a corresponding user, a type of a broadcast channel, and reception time information of the user's actual broadcast data. In this case, the statistical information may be used to determine the broadcast service fee of the corresponding user.

As described above, in the code division multiple access mobile communication broadcasting service apparatus and method according to an embodiment of the present invention, a broadcast server provided in a mobile broadcasting station receives broadcast data from remote hosts through a computer network and stores the broadcast data in a broadcast database. And update. The broadcast server transmits the broadcast data to the base station through the IWF and the mobile switch. The broadcast management server provided in the mobile broadcasting station is connected to the mobile exchange to receive broadcast DB related statistical information and manages information of a broadcast data provider and a user. In addition, the corresponding base station uses a predetermined code channel in the CDMA forward only for broadcasting and broadcasts broadcast data time-divided into a lower channel. The mobile station receives broadcast data according to the selected broadcast channel and reception time. In this case, the corresponding base station transmits the broadcasting data and the in-band paging information alternately in units of paging channel slot intervals. The mobile station then switches to the in-band paging broadcast reception mode and checks whether its paging call is made even during broadcast data reception.

As described above, according to the embodiment of the present invention, the apparatus and method for mobile communication broadcasting service of code division multiple access method receives, stores, and transmits broadcast data from remote hosts. The base station time-divisions and broadcasts a predetermined predetermined code channel into a plurality of subchannels. The mobile station then switches to the broadcast reception mode and receives broadcast data according to the selected broadcast channel and reception time. This allows the mobile station to receive and provide various broadcast data serviced by the base station to the user while not actually making a call. In addition, the broadcast channel structure according to the embodiment of the present invention has an advantage of providing high quality broadcast data such as color graphics and moving pictures while minimizing the use of CDMA mobile communication radio resources. In addition, each sub-broadcasting channel according to an embodiment of the present invention can be leased to a broadcaster or an advertising provider, etc., which has the advantage of generating new profits for the mobile communication service provider. In addition, the user may receive a reduction in the telephone fee based on the reception result of the broadcasting channel.

Claims (30)

A broadcast service apparatus of a code division multiple access mobile communication system, A mobile station for receiving, storing, updating, and transmitting broadcast data from remote hosts; A mobile switch for transmitting broadcast data output from the mobile station to a corresponding base station; And a base station for broadcasting the broadcast data to mobile stations through a corresponding forward code channel dedicated to broadcast. The method of claim 1, wherein the broadcast-only forward code channel, And time division into a plurality of sub-broadcast channels, and transmitting the broadcast data and in-band-paging information alternately in units of paging channel slot intervals. The mobile station of claim 2, wherein the mobile station receiving the broadcast data comprises: And converting an operation mode into an in-band-paging broadcast reception mode to check whether a paging call is made even during broadcast data reception. The method of claim 3, wherein the remote host, And transmitting the broadcast data to the mobile broadcasting station through a computer network. The method of claim 4, wherein the remote host, Broadcasting service device that wants to provide broadcast data, broadcast service device, characterized in that the advertising service. The broadcast service apparatus as claimed in claim 5, wherein the computer network is an Internet network. The method of claim 6, Performs fax, modem-pull and internet matching functions between the mobile switch and the computer network to enable data service in the mobile communication system, and matches and outputs broadcast data output from the mobile station to the mobile switch. -Double U-F is further added to the broadcast service device. The method of claim 7, wherein the mobile broadcast station, And a broadcast service-related statistical information connected to an operation / maintenance unit provided in the mobile switch to determine a broadcast service fee of the corresponding user. The method of claim 8, wherein the mobile broadcast station, A broadcast server connected to the computer network and i-double U-F to receive and transmit the broadcast data; A broadcast management server receiving the broadcast database related statistical information and managing broadcast database provider and user information; And a broadcast database for storing and updating the broadcast data. The method of claim 9, wherein the broadcast database provider information, The broadcast service device, characterized in that the incentive information is given to the receiving user by a broadcast provider leasing a predetermined lower broadcast channel. The method of claim 10, wherein the broadcast database user information, Broadcasting device characterized in that the number of the user, the type of the received broadcast channel, the reception time information. The method of claim 11, wherein the broadcast database related statistical information, And a user number, a type of the broadcast lower channel, a broadcast data reception time selected by the user, and reception time information on actual broadcast data of the user. The method of claim 12, And an H-L-R / V / L-AL for registering the broadcast service state of the corresponding mobile station by the mobile switch. In a broadcast service method of a code division multiple access mobile communication system A first step of a mobile station receiving, storing, updating and transmitting broadcast data from remote broadcast data providing hosts to a base station; A second step of the base station broadcasting the broadcast data to mobile stations through a corresponding forward code channel dedicated to broadcast; A third step of the base station transmitting a broadcast reception mode setting request from the corresponding mobile station to the mobile switch and registering the H-L / V-L-AL with the mobile station; Transmitting, by the base station, a broadcast menu to the mobile station, and transmitting the user's selected broadcast menu to the mobile switch, the mobile switch transmitting broadcast database related statistical information about the mobile station to the connected mobile broadcast station; , And a fifth step in which the corresponding mobile station switches to a broadcast reception mode and receives the broadcast data according to the selected broadcast menu according to the broadcast reception mode switching instruction of the mobile switch. The method of claim 14, wherein the first step, And the mobile broadcasting station transmits the broadcasting data to the base station via an i-double U-F and a mobile switch that perform a matching function between the data and the mobile communication system. The method of claim 15, wherein the broadcast-only forward code channel, And time-dividing into a plurality of sub-broadcast channels, and transmitting the broadcast data and in-band-paging information alternately in units of paging channel slot intervals. 17. The mobile station of claim 16, wherein the mobile station receiving the broadcast data comprises: And converting an operation mode into an in-band-paging broadcast reception mode to check whether a paging call is made even during broadcast data reception. In the broadcasting channel structure in the mobile communication system of the code division multiple access method, The channel identification code assigned for broadcasting is multiplied. A broadcast channel structure comprising a plurality of sub broadcast channels time-divided by a corresponding time unit. The method of claim 18, And a paging channel slot duration is an integer multiple of a length of a transmission unit frame of each sub broadcast channel. 20. The method of claim 19, wherein each of the sub broadcast channels, The broadcast channel structure, characterized in that for transmitting the paging channel slot interval, the broadcast data and the in-band-paging information alternately transmitted. The method of claim 20, wherein each of the sub broadcast channel, And transmitting the broadcast data in a predetermined paging channel slot section and transmitting paging information of the predetermined paging channel slot section in a next slot section. The method of claim 21, wherein the corresponding Walsh code, Broadcast channel structure, characterized in that one of the Walsh code for the traffic channel. The method of claim 22, wherein the time time division of the corresponding unit, And a time division time is determined in consideration of the transmission amount of the broadcast data and the broadcast data reception time of the mobile station. The method of claim 23, wherein the time division unit, And at least each of the sub broadcast channels is adapted to transmit still pictures, short moving pictures, and simple animation picture data. In the broadcasting channel structure in the mobile communication system of the code division multiple access method, The Walsh code assigned for the broadcast is multiplied. The broadcasting channel structure, characterized in that the paging channel consists of a plurality of sub-broadcasting channels are transmitted alternately in the broadcast data and in-band-paging information in the slot unit. The method of claim 25, wherein the length of the paging channel slot interval, And a multiplier of the length of a transmission unit frame of each sub broadcast channel. The method of claim 26, wherein each of the sub broadcast channel, And transmitting the broadcast data in a predetermined paging channel slot section and transmitting paging information of the predetermined paging channel slot section in a next slot section. The channel classification code of claim 27, Broadcast channel structure, characterized in that one of the Walsh code for the traffic channel. 29. The method of claim 28, wherein the time time division of the unit is: And a time division time is determined in consideration of the transmission amount of the broadcast data and the broadcast data reception time of the mobile station. The method of claim 29, wherein the time division unit, And at least each of the sub broadcast channels is adapted to transmit still pictures, short moving pictures, and simple animation picture data.