KR20100003452A - Apparatus and method for seamless broadcasting service between different broadcasting zone in broadband wireless access system - Google Patents

Abstract

PURPOSE: A broadcasting service method between heterogeneous broadcasting zones and an apparatus thereof for generating a mapping table about a broadcast channel are provided to supply the broadcast service by generating a mapping table about a broadcast channel. CONSTITUTION: If a broadcast channel is selected, an MAC layer ID in a current broadcasting zone and an MAC layer ID in an adjacency broadcast zone are mapped(401). The composed mapping table as is stored in the MAC layer(407). The MAC layer ID at the adjacency broadcast zone obtains from the mapping table(411). In the broadcast channel is the adjacency broadcast zone, it is continuously received by using obtained MAC layer ID(415).

Description

Method and apparatus for seamless broadcasting service between heterogeneous broadcasting zones in a broadband wireless access system {APPARATUS AND METHOD FOR SEAMLESS BROADCASTING SERVICE BETWEEN DIFFERENT BROADCASTING ZONE IN BROADBAND WIRELESS ACCESS SYSTEM}

The present invention relates to a broadcast service, and more particularly, to a method and an apparatus for providing a seamless broadcast service by a terminal internally generating and managing a mapping table for a broadcast channel for each broadcast zone in a broadband wireless access system.

Major services in the wireless network include the Internet, Voice over IP (VoIP), and non-real-time streaming services. In addition to these existing services, a real-time broadcast service, for example, WiMAX's MultiCast and BroadCast Service (hereinafter referred to as 'MCBCS') may be called 'MBS' according to the intention of the standardization group or operator. Is expected to be a new killer application.

The broadcast service serves different broadcast channels for each broadcast zone. For example, assuming that the application layer manages a broadcast channel list (MCID list) for each broadcast zone (MBS zone ID), in order for a user to view a broadcast, the broadcast zone ID to which the terminal belongs in the MAC layer is applied to the application layer. In addition, the application layer should inform the MAC layer of the MCID for the channel selected by the user. In addition, the MAC layer and the physical layer decode the broadcast channel of the corresponding MCID and deliver it to the application layer. In such a system, the terminal can move to another broadcasting zone while receiving a broadcast. Thus, when handover between heterogeneous broadcasting networks, the currently received broadcast channel becomes a service in a new broadcasting zone as well as the existing broadcasting zone. If present, the MAC layer should know the MCID for the corresponding broadcast channel in the new broadcast zone. To this end, after the handover, the MAC layer of the terminal receives the broadcast zone ID from the new broadcast zone and delivers it to the application layer, and the application layer finds an MCID that can be used in the new MBS zone and delivers it to the MAC layer. In this process, the broadcast that was serviced until the terminal can decode the desired data is likely to be interrupted. That is, since a delay occurs until the data is decoded in a new broadcast zone, the broadcast service may be frequently disconnected in an environment such as frequent handover or ping pong.

Accordingly, in providing a broadcast service between heterogeneous networks according to handover of a terminal, a method of providing a seamless broadcast service is required.

An object of the present invention is to provide an apparatus and method for generating a mapping table for a broadcast channel for each broadcast zone between heterogeneous broadcast zones in a broadband wireless access system.

Another object of the present invention is to provide a broadcast service in a broadband wireless access system, and to provide an apparatus and method for providing a seamless broadcast service during handover between different broadcast zones of a terminal.

Another object of the present invention is to provide the MAC layer in the terminal to deliver information of the serving MBS zone and the adjacent MBS zone to the application layer, the application layer configures the MCID mapping table between the serving MBS zone and the adjacent MBS zone for the same broadcast channel An apparatus and method for delivering to a MAC layer are provided.

Another object of the present invention is to provide an apparatus and method for managing an MCID mapping table between a serving MBS zone and an adjacent MBS zone for the same broadcast channel in a MAC layer of a terminal.

It is still another object of the present invention to provide an apparatus and method for continuously receiving a broadcast channel received in a previous broadcast zone in a new broadcast zone without interworking with an application layer by a MAC layer of a terminal in a handover between different broadcast zones.

According to an embodiment of the present invention for achieving the above object, in a method for processing inter-broadcast handover in a terminal of a broadband wireless access system, when a broadcast channel is selected, the current broadcast zone for the selected broadcast channel Mapping the MAC layer ID and the MAC layer ID in the adjacent broadcast zone to construct a mapping table, storing the configured mapping table in the MAC layer, and moving the neighboring broadcast zone from the mapping table. And acquiring a MAC layer ID in the neighboring broadcast zone for the broadcast channel, and continuously receiving the broadcast channel in the neighboring broadcast zone using the obtained MAC layer ID. .

According to an embodiment of the present invention for achieving the above object, when a broadcast channel is selected in a terminal device in a broadband wireless access system, information about a serving broadcast zone and a neighboring broadcast zone is obtained from a MAC layer processor. An application layer processor configured to map a MAC layer ID in the serving broadcast zone and a MAC layer ID in the adjacent broadcast zone with respect to a selected broadcast channel, and to transfer the mapping table to the MAC layer processor; Storing the mapping table from the application layer processor, acquiring a MAC layer ID in the adjacent broadcast zone for the broadcast channel from the mapping table during handover between broadcast zones, and using the obtained MAC layer ID. And a MAC layer processing unit for continuously receiving a broadcast channel in the adjacent broadcast zone. It shall be.

As described above, in the present invention, the MAC layer of the terminal acquires and stores the MCID mapping table between the serving MBS zone and the adjacent MBS zone for the same broadcast channel from the application layer in advance. Accordingly, in the handover between different broadcast zones, since the MAC layer of the UE can obtain the MAC layer ID in the new broadcast zone for the existing broadcast channel from the mapping table without interworking with the application layer, the broadcast service is seamlessly performed. There is an advantage that can be received. Accordingly, it is expected that the competitiveness of the terminal providing the broadcast service can be enhanced.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In describing the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

Hereinafter, an apparatus and method for managing an MCID mapping table between a serving MBS zone and an adjacent MBS zone for a same broadcast channel in a terminal will be described.

In order to provide a seamless broadcast service, the present invention generates a MAC layer ID mapping table between a current broadcast zone and a neighboring broadcast zone for the same broadcast channel internally and stores it in the MAC layer. In the handover between different broadcast zones, the MAC layer acquires the MAC layer ID in the new broadcast zone for the broadcast channel received in the existing broadcast zone from the mapping table, and moves the broadcast using the obtained MAC layer ID. This is to receive the broadcast channel seamlessly in the zone.

Here, the MAC layer name tag includes a multicast connection ID (hereinafter referred to as 'MCID'), a logical channel ID (hereinafter referred to as 'LCID'), and a transport connection ID (hereinafter referred to as 'LCID'). "TCID"), and the IP layer name tag includes a broadcast channel IP and a content IP. In addition, the application layer (meaning above L3 layer) name tag may include a content ID, a broadcast channel ID, a broadcast station ID, and a service provider (SP) ID, and the IP layer name tag may also be included therein. That is, the application layer is above the MAC layer, for example, in the case of the L7 layer, L3 (IP) or L4 (Transport) or L5 (Application) or one of L6 or L7 or a combination of these five layers (eg L3 & L5). The broadcast zone name tag for the mapping table for the broadcast channel for each broadcast zone includes a MAC layer broadcast zone (MBS zone ID for WiMAX) and an application layer broadcast zone (MCBCS transmission zone ID for WiMAX). .

In the following description, the name of a network entity (NE) is defined according to a corresponding function, and may vary according to the intention of the standardization group or the operator. For example, a base station may be referred to as a radio access station (RAS) or a base station (BS), and a base station controller may be an access control router (ACR) or an access service network-gateway (ASN-GW). Gateway). Here, the ASN-GW may perform a router function as well as a base station controller function.

In addition, the subjects related to the MCBCS service are described as follows. Typically, subjects related to the MCBCS service are a content provider (hereinafter referred to as "CP"), a service provider (hereinafter referred to as "SP"), and a network operator (hereinafter referred to as "AP"). , User includes. First, the CP is responsible for producing and supplying the content provided by the MCBCS service, the SP is supplied with the content from the CP, serves to serve the user for free or a fixed fee for the content, The AP is responsible for transmitting the service of the SP to users. The CP, SP, and AP may each be independent operators, but one operator may play all roles or two or more roles. An example thereof may be a terrestrial broadcasting operator in Korea.

1 is a diagram illustrating a network structure for providing an MCBCS service of a broadband wireless access system according to the present invention.

As shown, the network structure is a security server (150), MCBCS application server (hereinafter referred to as 'AS') (140-1, 140-2), MCBCS server 130, MCBCS It is configured to include a controller (120), the base station 110 and the terminal (100). Here, the MCBCS controller 120 may be an independent device installed separately from the base station controller, or the base station controller may include a function of the MCBCS controller. The names may be called different names according to the type of wireless network.

Referring to FIG. 1, first, the security server 150 belongs to an area of the SP and performs functions such as authentication, authorization, and billing processing for the user's subscription to the MCBCS service.

The MCBCS ASs 140-1 and 140-2 belong to the area of the SP and have a subscription processing / management function for the user who has subscribed to the MCBCS service, a function for transmitting the contents of the MCBCS service to the AP, and a fraudulent user. It performs user authentication for access control, protects content supplied to CP, manages terminals of multiple users, and provides information required for MCBCS services. In FIG. 1, for example, the MCBCS AS 1 140-1 may be an MCBCS AS for an SP that provides a free service or does not provide an illegal user control function and a content protection function, and the MCBCS AS 2 ( 140-2) may be an MCBCS AS for an SP that provides paid services, fraudulent user control, and content protection. Hereinafter, the functions of the MCBCS ASs 140-1 and 140-2 will be described in detail.

-MCBCS service information, for example, service guide generation: When creating a service guide, it follows the mutually agreed data model between MCBCS ASs.

-Perform subscription procedure to receive MCBCS service of user

-Interact with the security server 150 to perform user authentication, permission to use, billing

-User group management by MCBCS channel or MCBCS content

-Management and distribution of authentication key by group

-Unauthorized user access control / multimedia content protection (Service Protection / Content Protection): Content encryption and decryption key management and distribution

-Stream Transmission / File Transmission: Definition of transmission protocol, management of reception report to check whether user has received MCBCS contents normally, file metadata (File transmission) for file transmission Metadata Management

-User Interaction: Provides interactive service with users

-Notification / Alert: Provides a service to notify users who have subscribed to MCBCS service when there is a change in broadcasting schedule or emergency broadcasting is required.

The MCBCS server 130 belongs to the SP area and collects and transmits MCBCS service information (eg, service guide) from various MCBCS ASs, manages for efficient use of network resources, and errors in data by a user terminal. It provides support function for missing reception. Detailed functions are as follows.

-MCBCS Transmission Zone Management: Management of base stations in the area to service for each SP

-Service Guide processing: Aggregate service guides received from MCBCS AS, service guide compression to reduce fragmentation, network resource consumption, and maintenance management of service guides as needed.

-Service Guide Deployment: Unicast or Multicast Methods

-Stream Transmission / File Transmission: Check whether the user has received the MCBCS contents normally (sometimes play the same role as MCBCS AS)

-Multicast group management through user location tracking

-Receipt report processing: When the user reports the network status through the reception report, it is reflected.

The MCBCS controller 120 is located in the AP, and efficiently connects the MCBCS service transmitted through the central network as a connection part of a core network (CSN: Core Service Network) and an access network (ASN) through a wireless network. It supports the function of transmitting and notifying the start of the MCBCS service to the user's terminal. Detailed functions are as follows.

Data / time synchronization to provide macro diversity gain: Burst reservation allocation and packet processing

-Manage MBS Zone ((Multicast and Broadcast Service_Zone: MBS_ZONE)

-Group paging information delivery for notification

Here, the MCBCS controller 120 may directly interface only with the MCBCS server 130, for example, and interface with different SPs may be performed through the MCBCS server 130.

The base station 110 is responsible for the wireless transmission of the MCBCS service transmitted by wire, and is managed by the AP.

The terminal 100 serves as a user terminal to provide a user with the MCBCS service transmitted through the network entities. The terminal 100 includes a service guide (including a mapping table for all broadcast zones (application layer ID vs. MAC layer ID)) through the application layer in order to receive, change, and delete broadcast traffic even in idle mode. (Received and stored from 130. The MCBCS server 130 authenticates the subscriber when a subscription request is received from the terminal, and downloads the service guide to the terminal if the authentication is successful. The service guide may include a broadcast schedule (content ID, time, transmission rate, etc.), a multicast IP address, an MCID, an MBS zone ID, an encryption key, a lift time of an encryption key, and the like. Can obtain a broadcast zone ID (MBS zone ID) to which it currently belongs through a message for broadcasting a system parameter (for example, a DCD message), and a message for broadcasting a neighbor base station list (for example, a DCD message). NBR-ADV message) may be used to obtain IDs for neighboring broadcast zones.

Lastly, although not shown, the policy server manages QoS profile information for each IP flow for a terminal requesting a service.

Herein, the service area illustrated in FIG. 1 represents an area where the SP provides a service, and the MCBCS transmission zone is an identifier used by the CP and the SP to negotiate an MCBCS service area. This is an identifier that is not used in the access service network (ASN), which is an area managed by the AP. The identifier used by the SP and the AP to negotiate the service area is an MBS zone ID, and may have a relationship of n: m with the MCBCS transmission zone. The MBS zone means an area in which MCBCS service flows are valid through different Connection IDentifiers (CIDs) or different Security Associations (SAs).

2 is a block diagram showing an apparatus configuration of a terminal in a broadband wireless access system according to the present invention.

As shown, the terminal is an RF receiver 200, a physical layer processor 210, a medium access control (MAC) layer processor 220, an IP layer processor 230, an application layer processor And 240.

Referring to FIG. 2, first, the RF receiver 200 converts an RF signal received through an antenna into a baseband signal, and converts the converted baseband analog signal into a digital signal.

The physical layer processor 210 physically decodes the signal from the RF receiver 200 and outputs original information data. In this case, the physical layer processing unit 210 may include a modulation block, a channel decoding block, and the like. Assuming an OFDM system, the modulation block includes a fast fourier transform (FFT) operator for extracting data carried on each subcarrier, and the channel decoding block includes a demodulator, a deinterleaver, and a channel decoder. (channel decoder) or the like.

The MAC layer processor 220 converts the data from the physical layer processor 210 into IP packet data and transmits the data to the IP layer processor 230. The MAC layer processing unit 220 receives a broadcasting MAC message transmitted from a current base station and neighboring base stations, obtains broadcast zone information and broadcast channel reference information from the received broadcasting MAC message, and then applies the application layer processing unit. Can be passed to 240. For example, in the case of WiMAX, the broadcast zone information may be an MBS zone ID, and the broadcasting MAC message may be MBS_MAP_IE, MBS-MAP message, MBS_Data_IE, Downlink Channel Descriptor (DCD), or the like. Here, the MBS_MAP_IE is a message for the base station to provide the terminal with the location information and decoding information of the MBS-MAP message in the downlink subframe, the MBS-MAP message is a message composed of MBS_Data_IE, the base station through the MBS_Data_IE The terminal provides location information and decoding information of MCBCS data bursts. The DCD is a broadcast message for the base station to transmit broadcast zone information to the terminal. In addition, the MAC layer processor 220 may receive a broadcast message including a neighboring base station list, obtain neighboring broadcast zone information from the broadcast message, and transmit the adjacent broadcast zone information to the application layer processor 240.

In addition, according to the present invention, the MAC layer processor 220 receives and manages the MCID mapping table 260 between the serving broadcast zone and the adjacent broadcast zone for the same broadcast channel from the application layer processor 240. Therefore, during handover between broadcast zones, the MAC layer processor 220 obtains the MCID in the target broadcast zone for the broadcast channel received in the serving broadcast zone using the MCID mapping table 260, and obtains the obtained MCID. Using the MCID, the broadcast channel is seamlessly received and transmitted to the upper layer.

The IP layer processor 230 extracts application service data from data in the form of an IP packet from the MAC layer processor 220 and delivers the application service data to the application layer processor 240.

The application layer processor 240 provides various application services (eg, e-mail, FTP, etc.) for communication to the user by using the application service data from the IP layer processor 230. The application layer processing unit 240 receives and stores a service guide (including a mapping table (application layer ID vs. MAC layer ID) for all broadcasting zones) 250 from the MCBCS server of the core service network.

In addition to the normal function, the application layer processor 240 requests the MAC layer processor 220 for information on the serving broadcast zone and the adjacent broadcast zone when a broadcast channel is selected by a user's key manipulation. The MAC layer processor 220 receives information about the serving broadcast zone and the adjacent broadcast zone. Thereafter, the application layer processor 240 maps the MCID in the serving broadcast zone for the broadcast channel selected by the user and the MCID in the adjacent broadcast zone for the broadcast channel, and maps the mapping table to the MAC layer processor 220. To pass.

Then, the MAC layer processing unit 220 receives the broadcast channel selected by the user using the mapping table. During handover between broadcast zones, the MAC layer processor 220 obtains the MCID of the target broadcast zone for the broadcast channel received in the serving broadcast zone from the mapping table, and disconnects the corresponding broadcast channel using the obtained MCID. Receive without and forward to upper layer.

 As such, the application layer processor 240 manages a service guide 250 including a mapping table for MAC layer name tags vs. IP layer name tags vs. application layer name tags. The guide 250 performs an operation according to a user's broadcast channel selection, change or deletion. For example, when a user selects or changes a broadcast channel, the application layer processor 240 transmits the MAC layer name tag for the selected or changed broadcast channel to a lower layer to receive and transmit data of the corresponding broadcast channel to a higher layer. The MAC layer processor 220 receiving the request for transmission and receiving it may instruct the physical layer processor 210 to open a physical port and receive a flow of the corresponding MAC layer name tag. That is, the MAC layer processor 220 may check the MAC layer name tag of the burst and instruct the physical layer processor 210 to receive and transmit the burst to the higher layer. As a result, when a flow path is generated, the received data is transmitted to a higher layer and displayed to the user.

3 illustrates an interfacing procedure between a MAC layer and an application layer in a terminal according to an embodiment of the present invention.

Referring to FIG. 3, when a broadcast channel is selected by a user, the application layer requests information on a serving broadcast zone and an adjacent broadcast zone from the MAC layer in step 301. Then, in step 303, the MAC layer transmits a response message including an ID for a serving broadcast zone (serving MBS zone ID) and an ID for a neighboring broadcast zone (neighbor MNS zone ID) to the application layer. For example, the information on the serving broadcast zone may be obtained from a DCD message broadcasting a system parameter, and the information on the neighboring broadcast zone may be obtained from an NBR-ADV message broadcasting a neighbor base station list.

In operation 305, the application layer obtains the MCID in the serving broadcast zone and the MCID in the adjacent broadcast zone from the service guide for the broadcast channel selected by the user, and at least one neighbor with the MCID of the serving broadcast zone. The mapping table in which the MCIDs of the broadcast zones are mapped is transferred to the MAC layer.

Then, the MAC layer stores the mapping table from the application layer, decodes the selected broadcast channel, and delivers it to an upper layer. After the handover, the MAC layer acquires the MICD in the new broadcast zone for the broadcast channel using the mapping table without interworking with an application layer, and uses the acquired MCID in the new broadcast zone in the broadcast channel. Receives seamlessly and delivers to the application layer.

Thereafter, when the broadcast channel reception termination is selected by the user, the application layer requests the reception of the broadcast channel to the MAC layer in step 307.

When defining the MBS API according to FIG. 3 is shown in Table 1 below.

Message Parameters API_MAC_MBS_ZONE_REQ No parameter MAC_API_MBS_ZONE_RSP Serving MBS Zone ID Number of neighbor zone n MBS Zone IDs API_MAC_MC_Start_Req Serving MCID Number of neighbor zone n neighbors {MBS zone ID, MCID} API_MAC_MC_Stop_Req Serving MCID

4 is a flowchart illustrating a hand-over procedure between broadcast zones of a terminal in a broadband wireless access system according to an exemplary embodiment of the present invention.

Referring to FIG. 4, in step 401, the terminal receives a service guide (including a mapping table (application layer ID vs. MAC layer ID) for all broadcast zones) from a broadcast server (MCBCS server) through an application layer and applies an application layer. Store in hierarchy

In step 403, the terminal determines whether a broadcast channel is selected according to a user's key operation. When the broadcast channel is selected, the terminal acquires the MCID in the serving broadcast zone and the MCID (at least one or more) in the neighboring broadcast zone for the selected broadcast channel in step 405 from the service guide, and the serving broadcast. A mapping table is constructed by mapping MCIDs in a zone and MCIDs in the adjacent broadcast zone. Here, the mapping table may be configured in the application layer of the terminal.

In step 407, the terminal stores the configured mapping table in the MAC layer and receives the selected broadcast channel. That is, the terminal maps the MCID of the neighboring broadcast zone corresponding to the channel selected in the current cell with the MCID of the current cell and manages it in the MAC layer.

Thereafter, the terminal determines whether handover between broadcast zones occurs in step 409. When handover occurs between broadcast zones, the terminal proceeds to step 411 to acquire an ID for a new broadcast zone (MBS zone ID). Here, the ID for the new broadcast zone may be obtained through a Downlink Channel Descriptor (DCD) message broadcast in a newly moved cell.

In step 413, the terminal (MAC layer) obtains the MCID of the new broadcast zone for the broadcast channel received in the previous broadcast zone from the mapping table. In step 415, the terminal (MAC layer) seamlessly receives a corresponding broadcast channel in a new broadcast zone using the obtained MCID. Thereafter, the terminal terminates the algorithm according to the present invention.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the scope of the following claims, but also by the equivalents of the claims.

1 is a diagram illustrating a network structure for providing an MCBCS service in a broadband wireless access system according to the present invention.

Figure 2 is a block diagram showing the device configuration of a terminal in a broadband wireless access system according to the present invention.

3 is a diagram illustrating an interfacing procedure between a MAC layer and an application layer in a terminal according to an embodiment of the present invention.

4 is a flowchart illustrating a handover procedure between broadcast zones of a terminal in a broadband wireless access system according to an exemplary embodiment of the present invention.

Claims (9)

A method for processing handover between broadcast zones in a terminal of a broadband wireless access system, When a broadcast channel is selected, configuring a mapping table by mapping a MAC layer ID in a current broadcast zone and a MAC layer ID in an adjacent broadcast zone with respect to the selected broadcast channel; Storing the configured mapping table in a MAC layer; Obtaining a MAC layer ID in the neighboring broadcast zone for the broadcast channel from the mapping table in the MAC layer when moving to the neighboring broadcast zone; And continuously receiving the broadcast channel in the neighboring broadcast zone by using the obtained MAC layer ID. The method of claim 1, wherein the mapping table configuration process comprises: When the broadcast channel is selected, requesting information on the current broadcast zone and the adjacent broadcast zone from the application layer to the MAC layer; Transmitting, at the MAC layer, information on the current broadcast zone and at least one adjacent broadcast zone to the application layer; Obtaining, at the application layer, a MAC layer ID in the current broadcast zone and a MAC layer ID in the adjacent broadcast zone for the selected broadcast channel from a service guide; And in the application layer, configuring the mapping table by mapping the obtained MAC layer ID in the current broadcast zone and the MAC layer ID in the adjacent broadcast zone. The method of claim 1, The information on the current broadcast zone is obtained from a MAC message broadcasting a system parameter, and the information on the neighboring broadcast zone is obtained through a MAC message advertising neighbor cell information. The method of claim 1, And receiving a service guide including information on all broadcast zones from the broadcast server through an application layer protocol. The method of claim 1, The MAC layer ID is characterized in that the multicast connection IDentifier (MCID). A terminal device in a broadband wireless access system, When a broadcast channel is selected, the MAC layer processor acquires information on a serving broadcast zone and an adjacent broadcast zone from the MAC layer processor, and identifies a MAC layer ID in the serving broadcast zone and a MAC layer in the adjacent broadcast zone for the selected broadcast channel. An application layer processor configured to configure a mapping table by mapping IDs, and to transfer the mapping table to the MAC layer processor; Storing the mapping table from the application layer processor, acquiring a MAC layer ID in the adjacent broadcast zone for the broadcast channel from the mapping table during handover between broadcast zones, and using the obtained MAC layer ID. And a MAC layer processor for continuously receiving a broadcast channel in the adjacent broadcast zone. The method of claim 6, wherein the MAC layer processing unit, And obtaining information about the serving broadcast zone from a MAC message for broadcasting a system parameter, and obtaining information about the neighboring broadcast zone through a MAC message for advertising neighboring cell information. The method of claim 6, The application layer processing unit, characterized in that for receiving and storing information about all the broadcast zones from the broadcast server of the core service network. The method of claim 6, The MAC layer ID is a device characterized in that the multicast connection IDnetifier (MCID).

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