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WO2006015554A1 - Procede pour recevoir en meme temps plusieurs services - Google Patents

Procede pour recevoir en meme temps plusieurs services Download PDF

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Publication number
WO2006015554A1
WO2006015554A1 PCT/CN2005/001252 CN2005001252W WO2006015554A1 WO 2006015554 A1 WO2006015554 A1 WO 2006015554A1 CN 2005001252 W CN2005001252 W CN 2005001252W WO 2006015554 A1 WO2006015554 A1 WO 2006015554A1
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WO
WIPO (PCT)
Prior art keywords
service
mbms
radio
receiving
radio bearer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2005/001252
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English (en)
Chinese (zh)
Inventor
Yingzhe Ding
Yanhong Wang
Ming Jin
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Publication of WO2006015554A1 publication Critical patent/WO2006015554A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/30—Resource management for broadcast services

Definitions

  • the present invention relates to a service receiving technology, and more particularly to a method capable of receiving multiple services simultaneously. Background of the invention
  • Multicast and broadcast are technologies for transmitting data from one data source to multiple targets.
  • CBS Cell Broadcast Service
  • CBS allows low bit rate data to be sent to all users through a cell shared broadcast channel. Message business.
  • IP multicast technology is only applicable to wired IP networks, but not to mobile networks, because mobile networks have specific network structures, functional entities, and wireless interfaces, which are different from wired IP networks.
  • WCDMA/GSM Global Standards Organization 3GPP proposes a Multimedia Broadcast/Multicast Service (MBMS) service, which provides a point in the mobile network where data sources send data to multiple users.
  • MBMS Multimedia Broadcast/Multicast Service
  • To multi-point services realize network resource sharing, and improve the utilization of network resources, especially air interface resources.
  • MBMS defined by 3GPP can not only realize plain-text low-rate message-like multicast and broadcast, but also realize multicast and broadcast of high-speed multimedia services, which undoubtedly conforms to the trend of future mobile data development.
  • FIG. 1 is a schematic diagram of a structure of a wireless network supporting broadcast/multicast services.
  • a wireless network entity supporting a broadcast/multicast service is a broadcast/multicast service server (BM-SC) 101.
  • BM-SC 101 communicates with GPRS support node via Gmb interface or Gi interface (GGSN, Gateway GPRS Support Node) 102 connected to one BM-SC 101 can be connected to multiple GGSNs 102; GGSN 102 through Gn/Gp interface and serving GPRS support nodes
  • SGSN Serving GPRS Support Node
  • one GGSN 102 can be connected to multiple SGSNs 103;
  • SGSN 103 can be connected to Universal Mobile Telecommunications System (UT TS) Terrestrial Radio Access Network (UTRAN) 104 via Iu interface, and then UTRAN 104 is connected to a user terminal (UE) 106 through a Uu interface, and the SGSN 103 can also communicate with the global mobile communication system through the Iu/Gb interface.
  • UT TS Universal Mobile Telecommunications System
  • UTRAN Universal Mobile Telecommunications System
  • UTRAN Universal Mobile Telecommunications System
  • UE user terminal
  • the (GSM) Enhanced Radio Access Network (GERAN) 105 is connected, and then the GERAN 105 is connected to the UE 107 via the Um interface.
  • GSM Global System for Mobile communications
  • GERAN Enhanced Radio Access Network
  • a mobile network functional entity broadcast multicast service center that is, a BM-SC
  • the BM-SC provides content.
  • the entry of the user is used to authorize and initiate the MBMS bearer service in the mobile network, and deliver the MBMS content according to a predetermined time schedule.
  • MBMS-related functions are added to functional entities such as UE, UTRAN, GERAN, SGSN, and GGSN.
  • the MBMS includes a multicast mode and a broadcast mode.
  • the multicast mode requires the user to subscribe to the corresponding multicast group, perform service activation, and generate corresponding charging information.
  • the respective service processes are different.
  • Figure 2 and Figure 3 Figure 2 is a schematic diagram of the service flow of the MSMS multicast mode, and Figure 3 is the MSMS broadcast mode. Schematic diagram of business process.
  • the MBMS multicast service involves the following procedures: subscription, service announcement, user join, session open: 1 ⁇ 2 (Session Start), MBMS notification ( MBMS notification ), Data transfer, Session Stop, and Leaving.
  • the sign-off process is used to allow the user to subscribe to the required MBMS service in advance;
  • the service announcement process is used to announce the currently available service by the BM-SC;
  • the user join process is the MBMS multicast service activation process, and the UE is notified during the joining process.
  • the network itself is willing to be a member of the current multicast group and receive the multicast data of the corresponding service.
  • the joining process creates an MBMS UE context for recording the UE information in the network and the UE joining the multicast group.
  • the BM-SC prepares the data transmission, notifying the network to establish the bearer resources of the corresponding core network and the access network; the MBMS notification process is used to notify the UE that the MBMS multicast session is about to start; during the data transmission process, the BM-SC The data is transmitted to the UE through the bearer resources established during the start of the session.
  • the MBMS service has two modes when transmitting between the UTRAN and the UE: point-to-multipoint (PTM) mode and point-to-point (PTP) mode, and the PTM mode passes the MTCH logical channel.
  • PTM point-to-multipoint
  • PTP point-to-point
  • PTP mode sends data through the DTCH logical channel, only the corresponding one UE can receive; the session end process is used to establish the session start process The bearer resource is released; the user exit process causes the subscribers in the group to leave the multicast group, that is, the user no longer receives the multicast data, and the process deletes the corresponding MBMS UE context.
  • the MBMS broadcast service involves a process similar to the MBMS multicast service, except that the subscription process and the user join process need not be performed before the session starts, and after the session ends, the user exit process does not need to be performed.
  • the two processes of user join and session start are independent of each other, that is, one user may join a multicast service before the session starts, or may be in a session.
  • a multicast service is added during the start of the session.
  • the UE may be classified into an idle (Idle) mode and an RRC connected (R C Connected) mode according to whether a radio resource control (RRC) connection is established.
  • RRC radio resource control
  • the UE that has not established an RRC connection with the UTRAN device is in the Idle mode, and the UE in this mode can only be distinguished by the identifier of the non-access stratum (NAS), such as the IMSI; the UE that has established the RRC connection with the UTRAN device is in the RRC Connected Mode, the UE in this mode allocates a Radio Network Temporary Identity (RNTI) as an identifier of the UE on a common transport channel.
  • NAS non-access stratum
  • RNTI Radio Network Temporary Identity
  • the UE is further divided into different states according to the level of the RC connection and the type of the transport channel that the UE can use: CELL—PCH state, CELL_FACH state, CELL—DCH state, and URA—PCH state, where the former Three states
  • the UEs can be distinguished at the cell level, and the UEs in the URA_PCH state can be distinguished at the UTRAN Registration Area (URA) level.
  • a UE in the CELL-DCH state is assigned a dedicated physical channel, and a dedicated transport channel or a shared channel and a combination thereof may be used.
  • the CELL-FACH state UE continuously monitors a common transport channel (FACH) on the downlink and the default common channel (RACH) on the uplink.
  • FACH common transport channel
  • RACH default common channel
  • the UEs in the CELL_PCH and URA_PCH states use a discontinuous reception (DRX) mode to monitor a paging channel (PCH) through the associated PICH channel, and there is no uplink activity in either state.
  • DRX discontinuous reception
  • UEs that join the MBMS service before the start of the session and during the session have different processing according to the UE mode and state. Meanwhile, UEs in different states have different wireless access capabilities.
  • the session start process starts after the user joins the multicast service, or the user joins the multicast service during the session, the UE with insufficient radio access capability faces the problem of selecting between multiple services.
  • the UTRAN device decides to establish a point-to-multipoint radio bearer
  • the UTRAN sends a dedicated notification message on the dedicated signaling channel to inform the UE that does not currently receive the CELL-DCH state of the MBMS service transmitted using the PTM mode
  • the UE that cannot receive the MBMS service in parallel and the CELL_DCH state of the existing active activity notifies the user after receiving the notification message, and the user makes a choice between the ongoing activity and the new MBMS service; if the user decides to receive the new MBMS service
  • the UE will read the MBMS Point-to-Multipoint Control Channel (MCCH) at a predetermined time to obtain MBMS control information; the UE starts receiving the MBMS service according to the received control information.
  • MCCH Point-to-Multipoint Control Channel
  • Step a The UE in the Idle mode first performs an RRC connection setup if; the UE in the CELL-PCH and URA_PCH states first performs a cell update procedure;
  • Step b Afterwards, the UE initiates a NAS join process
  • Step c The SGSN notifies the UTRAN that one UE has joined a certain MBMS service, and the UTRAN determines the transmission mode used by the service:
  • the UTRAN sends an MBMS-specific notification message including a service identifier, a cause, and the like on the DCCH to notify the UE in the CELL_DCH state, wherein the reason may be that the session is medium; cl2 ⁇ cl4. Receive the CELL-DCH status of the notification message.
  • the UE determines whether the new MBMS service and the current service can be received at the same time. If yes, step c5 is performed; if not, the user is notified, and the user selects between the current service and the MBMS service to determine whether to receive the new MBMS service. If the user decides to receive the new MBMS service, step cl5 is performed; otherwise, the current processing flow is ended.
  • the UE will read the MCCH at a predefined time to obtain MBMS service information and MBMS radio bearer information, and the UE starts to receive PTM radio bearer data according to the obtained MBMS service information and MBMS radio bearer information.
  • the UTRAN and the UE establish a PTP radio bearer through an appropriate RRC procedure, and the specific processing flow is also shown in FIG.
  • the prior art solution has the following problems: When the radio access capability is insufficient, the UE in the CELL-DCH state needs to select between the current service and the new MBMS service, and may release the current service. Receive new MBMS service; or give up receiving new MBMS service and continue to receive current service. Obviously, the prior art cannot receive multiple services at the same time, thus greatly affecting the user's reception of various services. Summary of the invention
  • the present invention provides a method for simultaneously receiving multiple services, so that the UE can simultaneously receive the current service. And the new MBMS service, and can reduce the mutual influence of the UE receiving different services.
  • a method of receiving multiple services simultaneously including the following steps:
  • the UE After receiving the MBMS notification message, the UE determines whether it can receive the new MBMS service and the current service at the same time. If yes, go to step c; otherwise, go to step b;
  • the method further comprises: the radio access network transmitting an MBMS dedicated notification message on the dedicated signaling channel of the UE, and the UE receiving the MBMS dedicated notification message.
  • the reconfiguring the radio resource in the step b is specifically implemented by: the UE and the network side negotiate to modify the service quality of the service.
  • the reconfiguring the radio resource in the step b is specifically implemented by: sending, by the UE, the modify PDP context request to the SGSN to trigger the modification of the radio access bearer by the network side.
  • the modification of the radio access bearer by the triggering network side specifically includes:
  • the UE sends a modify PDP context request to the SGSN;
  • the SGSN After receiving the request, the SGSN sends an update PDP context request to the GGSN, and the GGSN returns to update the PDP context response after receiving the request;
  • the SGSN modifies the radio access bearer through the interaction between the access network and the UE.
  • the reconfiguring the radio resource in the step b is specifically: the UE sends the capability information to the network side to trigger the network side to reconfigure the radio bearer.
  • the re-configuration of the radio bearer by the triggering network side specifically includes:
  • the UE sends UE capability information to the radio access network
  • the radio access network confirms that the radio resource used by the UE needs to be reconfigured, and then performs radio bearer reconfiguration on the UE, and reconfigures the radio resource used by the UE.
  • the method further includes: presetting a radio bearer reconfiguration request message, then step b
  • the reconfiguration of the radio resource is specifically performed by: sending, by the UE, the set radio bearer reconfiguration request to the network side to trigger reconfiguration of the radio bearer by the network side.
  • the re-configuration of the radio bearer by the triggering network side specifically includes:
  • the UE sends a preset radio bearer reconfiguration request to the radio access network
  • the radio access network confirms that the radio resource used by the UE needs to be reconfigured, and then performs radio bearer reconfiguration on the UE, and reconfigures the radio resource used by the UE.
  • the receiving the new MBMS service data in step c is specifically: the UE reads the MCCH at a predetermined time, obtains the MBMS service information, and the MBMS radio bearer information, and then the UE starts to receive according to the obtained MBMS service information and the MBMS radio bearer information. data.
  • step c the method further includes:
  • the receiving, by the step c, the new MBMS service data is: the UE reads the MCCH at a predetermined time to obtain the MBMS service information and the MBMS radio bearer information, and then the UE starts to receive data according to the obtained MBMS service information and the MBMS radio bearer information.
  • the method for receiving multiple services at the same time can make the UE migrate to the CELL-FACH state by reconfiguring the radio resources when the radio access capability of the user equipment in the CELL-DCH state is insufficient.
  • the radio access capability UE can receive multiple services concurrently, and minimize the mutual influence of the UE due to receiving different services.
  • the radio resource management algorithm of the network is more flexible and can provide users with higher quality. Service: When the wireless resources are sufficient, more resources can be allocated when the service is initially established. When more services need to be received, for example: If a new MBMS service is added, the wireless resources can be reconfigured, and the original service is not interrupted. In the case of receiving new business at the same time. BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a schematic diagram of a wireless network structure supporting broadcast/multicast services
  • FIG. 2 is a schematic diagram of the service flow of the MSMS multicast mode
  • FIG. 3 is a schematic diagram of the business process of the MSMS broadcast mode
  • FIG. 4 is a schematic diagram of a multi-service processing flow in the prior art
  • FIG. 5 is a schematic diagram of a process of receiving multiple services in the present invention.
  • FIG. 6 is a schematic diagram of an embodiment of reconfiguring a wireless resource according to the present invention.
  • FIG. 7 is a schematic diagram of another embodiment of reconfiguring a wireless resource according to the present invention.
  • FIG. 8 is a schematic diagram of still another embodiment of reconfiguring a wireless resource according to the present invention. Mode for carrying out the invention
  • both the MBMS service and the non-MBMS service can be transmitted on the dedicated channel or the common channel.
  • the two types cannot be received at the same time. Traffic on the channel, but if different services are switched to transmit on the common channel, and the UE is in the CELL-FACH state, and only the service is received from the common channel, the UE can simultaneously receive multiple services.
  • the basic idea of the present invention is: by reconfiguring the radio resources, the UE in the CELL-DCH state is migrated to the CELL-FACH state, and the service in which the transport channel is the dedicated channel is switched to the common channel, thereby allowing the UE to wirelessly In the case of insufficient access capability, the current service and the new MBMS service can be received simultaneously.
  • the present invention can use the existing message to trigger the process of reconfiguring the radio resource, and can also re-configure the radio resource by introducing a new message requesting the network device to re-adjust the radio resource and explain the reason, for example, because the UE has insufficient radio access capability, for example, :
  • the format of the specific message conforms to the standard because it cannot receive a dedicated physical channel and an auxiliary common physical channel in parallel.
  • Step 501 The UTRAN sends the DCCH on the DCC to the UE in the CELL_DCH state.
  • MBMS-specific notification message for parameters such as service identification, reason, etc. .
  • Step 502 503 The UE in the CELL_DCH state receives the MBMS dedicated notification message, and determines whether it can receive the new MBMS service and the current service at the same time. If yes, step 507 is performed; if not, step 504 is performed.
  • Steps 504-506 The UTRAN reconfigures the radio resource, and then the UE determines whether it can receive the new MBMS service and the current service at the same time. If it can receive, step 507 is performed; if not, the user is notified, the user is in the current service and A selection is made between the MBMS services to determine whether to receive the new MBMS service. If the user decides to receive the new MBMS service, step 507 is performed; otherwise, the current process flow is ended.
  • the reconfiguring the radio resource mainly refers to migrating the UE from the CELL-DCH state to the CELL-FACH state, and switching the service of the transport channel to the dedicated channel to the common channel.
  • Step 507 The UE will read the MCCH at a predefined time to obtain MBMS service information and MBMS radio bearer information, and the UE starts to receive data according to the obtained MBMS service information and MBMS radio bearer information.
  • the reconfiguring the radio resources in the step 504 has different implementation schemes, and specifically includes: Embodiment 1:
  • the UE in the CELL_DCH state determines that the radio access capability of the UE is insufficient, and cannot receive the current service and the new MBMS service at the same time, and notifies the non-access stratum of the radio resource management function entity of the UE.
  • the resource management function entity negotiates with the peer entity in SGS to modify the quality of service (QoS) parameters.
  • QoS quality of service
  • Step 601 The UE sends a modify PDP context request to the SGSN. Modify PDP Context Request
  • Step 602 603 The SGSN sends an update PDP context request to the GGSN after receiving the request. Update PDP Context Request, the GGSN receives the reply and updates the PDP context response Update PDP Context Response.
  • Steps 604 to 605 After receiving the response, the SGSN interacts with the UE through the access network RAN to modify the radio access bearer. After the modification is completed, the SGSN sends a Modify PDP Context Accept to the UE.
  • the request message for modifying the PDP context triggers the modification of the radio access bearer.
  • the radio bearer that the UE needs to receive is adjusted to the radio access capability range of the UE, the UE can simultaneously receive the current Business and new MBMS business.
  • the operation of the wireless access bearer modification is to migrate the UE from the CELL-DCH state to the CELL-FACH state, and switch the service of the transport channel to the dedicated channel to the common channel.
  • the network side sends a Modify PDP Context Reject message to the UE.
  • the UE determines whether it can receive the current service and the new one at the same time.
  • the MBMS service ie: proceeds to step 505.
  • the UE in the CELL-DCH state when the UE in the CELL-DCH state receives the MBMS service-specific notification message, it determines that its radio access capability is insufficient, and cannot receive the current service and the new MBMS service at the same time, and then sends the UE capability information to the UTRAN, triggering The network side reconfigures the radio bearer.
  • Steps 701-704 The UE capability information (Capability Information) process is used to notify the network device of the MBMS capability information of the UE. Specifically, the UE sends the UE capability information to the radio access network RAN. If the network device considers that the radio resource used by the UE can be reconfigured, the radio resource is reconfigured through a Radio Bearer Reconfiguration procedure. If the radio access capability of the UE can receive the reconfigured channel including the MBMS service channel in parallel after the radio resource reconfiguration is completed, the UE starts to receive the MBMS service; otherwise, it reports to the user, and the user makes a selection.
  • the UE capability information procedure wireless How the bearer reconfiguration process is implemented belongs to the prior art.
  • the reconfiguring the radio resource is specifically: moving the UE from the CELL_DCH state to the CELL_FACH state, and switching the service of the transport channel to the dedicated channel to the common channel, for example: the downlink transport channel can be switched from the DCH to the FACH.
  • the process of reconfiguring the radio resources described in Embodiment 2 can also be redundantly performed by the Transport Channel Reconfiguration process.
  • the solution introduces a new message radio bearer reconfiguration request, which is used by the UE to request the network device to reconfigure the radio resource.
  • the message indicates that the radio resource is re-adjusted and the reason is explained because the UE has insufficient radio access capability, for example: a dedicated physical channel and an auxiliary common physical channel cannot be received in parallel.
  • the UE sends a radio bearer reconfiguration request to the access network RAN, and the RAN and the UE reconfigure the radio resource by using a radio bearer reconfiguration procedure, for example, the downlink transmission may be performed.
  • the channel is switched from DCH to FACH. If the radio access capability can receive the reconfigured channel including the MBMS traffic channel in parallel after the radio resource reconfiguration is completed, the UE starts to receive the MBMS service; otherwise, it reports to the user, and the user makes a selection.
  • the solution for receiving multiple service processes becomes:
  • the UTRAN when the UTRAN decides to establish a point-to-multipoint radio bearer, the UTRAN sends an MBMS-specific notification message on the dedicated signaling channel to inform the UE that does not currently receive the CELL-DCH state of the MBMS service transmitted using the PTM mode.
  • the UE that cannot receive the MBMS service in parallel and the CELL_DCH state of the already received service receives the notification message.
  • re-configure the radio resource with the network if the radio resource fails to receive or reconfigure in parallel after reconfiguring the radio resource, notify the user that the user is in the ongoing service and new
  • the process of adding an MBMS service in a session includes the following steps: a.
  • the UE in the Idle mode first performs an RRC connection establishment process; the UE in the CELL-PCH and U A_PCH states first performs a cell update process.
  • the UE initiates the NAS join process.
  • the SGSN informs the UTRAN that a UE has joined a certain MBMS service, and the UTRAN determines the transmission mode used by the service:
  • the ell'. UTRAN sends an MBMS special notification message including parameters such as service identifier and cause on the DCCH to notify the UE in the CELL_DCH state, wherein the reason may be that the session is medium.
  • the CELL-DCH state UE that receives the MBMS-specific notification message, if it can receive the MBMS service and the current service at the same time, perform step cl5; if it cannot simultaneously receive the MBMS service and the current service, negotiate with the network Reconfigure the radio resource. If the MBMS service and the current service can be received at the same time after reconfiguring the radio resource, perform step cl5. If the radio resource fails to receive or reconfigure the radio resource in parallel after reconfiguring the radio resource, notify the user that the user is A choice is made between the current service and the MBMS service; if the user decides to receive the new MBMS service, step cl5 is performed; otherwise, the current process flow is ended.
  • the reconfiguring the radio resource with the network is specifically: moving the UE from the CELL_DCH state to the CELL_FACH state, and switching the service of the transport channel to the dedicated channel to the public. channel.
  • the UE will read the MCCH at a predefined time to obtain the MBMS service information and the MBMS radio bearer information. Thereafter, the UE starts to receive the PTM radio bearer according to the obtained MBMS service information and the MBMS radio bearer information.
  • the UTRAN and the UE establish a PTP radio bearer through an appropriate RRC procedure, and the specific processing procedure is similar to the procedure in cl.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention porte sur un procédé consistant à recevoir plusieurs services en même temps et comprenant les étapes suivantes: a) l'équipement utilisateur, recevant des services, reçoit un message d'annonce d'un service multimédia de diffusion et multidestination et estime s'il peut recevoir en même temps le nouveau service multimédia de diffusion et multidestination et le service courant. Si oui, il exécute alors l'étape c; sinon, il exécute l'étape b; b) l'équipement utilisateur reconfigure les ressources sans fil et va à l'étape c; c) l'équipement utilisateur reçoit les nouvelles données du service multimédia de diffusion et multidestination ainsi que le service courant. Le procédé de cette invention permet à l'équipement utilisateur de recevoir en même temps un service courant et le nouveau service multimédia de diffusion et multidestination et minimise l'influence de la réception de plusieurs services.
PCT/CN2005/001252 2004-08-12 2005-08-12 Procede pour recevoir en meme temps plusieurs services Ceased WO2006015554A1 (fr)

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Application Number Priority Date Filing Date Title
CN200410056125.2A CN1735263A (zh) 2004-08-12 2004-08-12 一种移动通信中接收组播业务的方法
CN200410056125.2 2004-08-12

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WO2006015554A1 true WO2006015554A1 (fr) 2006-02-16

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GB2446933A (en) * 2007-02-21 2008-08-27 Nec Corp A cellular system for transmitting data by which MBMS data is transmitted to maximise an area in which it is receivable

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Publication number Priority date Publication date Assignee Title
JP5208221B2 (ja) 2008-02-01 2013-06-12 インターデイジタル パテント ホールディングス インコーポレイテッド 不連続受信で動作するｗｔｒｕのためのセル再選択を可能にする方法および装置
CN102202260B (zh) * 2010-03-22 2016-04-13 中兴通讯股份有限公司 实现mbms业务接收的方法、系统及mbms接收装置

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CN1476198A (zh) * 2002-08-15 2004-02-18 ��������ͨ�ż����о����޹�˾ 利用小区广播的mbms的业务广告或业务指示的方法
CN1505411A (zh) * 2002-11-06 2004-06-16 三星电子株式会社 提供多媒体广播/多播服务的移动通信系统中的寻呼方法

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Publication number Priority date Publication date Assignee Title
CN1476198A (zh) * 2002-08-15 2004-02-18 ��������ͨ�ż����о����޹�˾ 利用小区广播的mbms的业务广告或业务指示的方法
CN1505411A (zh) * 2002-11-06 2004-06-16 三星电子株式会社 提供多媒体广播/多播服务的移动通信系统中的寻呼方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2446933A (en) * 2007-02-21 2008-08-27 Nec Corp A cellular system for transmitting data by which MBMS data is transmitted to maximise an area in which it is receivable

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