WO2010075766A1 - Procédé pour indiquer un canal de commande mbs, procédé pour transmettre des données mbs et des informations de configuration de sous-trames mbs - Google Patents

Procédé pour indiquer un canal de commande mbs, procédé pour transmettre des données mbs et des informations de configuration de sous-trames mbs Download PDF

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Publication number
WO2010075766A1
WO2010075766A1 PCT/CN2009/076165 CN2009076165W WO2010075766A1 WO 2010075766 A1 WO2010075766 A1 WO 2010075766A1 CN 2009076165 W CN2009076165 W CN 2009076165W WO 2010075766 A1 WO2010075766 A1 WO 2010075766A1
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Prior art keywords
mbs
superframe
subframe
control channel
scheduling period
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PCT/CN2009/076165
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English (en)
Chinese (zh)
Inventor
方惠英
曲红云
鲁照华
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中兴通讯股份有限公司
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Publication of WO2010075766A1 publication Critical patent/WO2010075766A1/fr

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

Definitions

  • MBS control channel indication method MBS data, and MBS subframe configuration information transmission method
  • the present invention relates to the field of mobile communication technologies, and in particular, to a multicast broadcast service (MBS) control channel indication method, an MBS data transmission method, and an MBS subframe configuration information transmission method in a broadband wireless communication system.
  • MBS multicast broadcast service
  • Next-generation broadband mobile communication systems such as Worldwide Interoperability for Microwave Access (WiMAX), Ultra Mobile Broadband (UMB), and 3GPP Long Term Evolution (3GPP LTE) are on the downlink Multiple access methods of Orthogonal Frequency Division Multiple Access (OFDMA) are adopted.
  • WiMAX Worldwide Interoperability for Microwave Access
  • UMB Ultra Mobile Broadband
  • 3GPP LTE 3GPP Long Term Evolution
  • OFDMA Orthogonal Frequency Division Multiple Access
  • Multicast Broadcast Service is a technology that transfers data from one data source to multiple targets. This technology can improve the utilization of network resources (especially air interface resources). With the promotion of the application of multimedia sharing services, multicast and broadcast service transmission is particularly important for the next generation of broadband mobile communication systems.
  • the new generation of broadband mobile communication systems have increased the bandwidth of the system.
  • the new system needs to support multiple carriers.
  • the bearer of the MBS service can be implemented in two ways: one is a dedicated carrier mode, that is, the MBS service monopolizes all time-frequency resources on a certain carrier; the other way is a shared carrier mode, that is, an MBS service and The unicast service shares time-frequency resources on the carrier.
  • the shared carrier mode is implemented by dividing a part of a unit frame to transmit MBS services.
  • the present invention provides an improved multicast broadcast service implementation solution for solving the problem that the prior art cannot share the carrier between the MBS service and the unicast service in the broadband wireless communication system.
  • an MBS control channel indication method is provided.
  • the MBS control channel indication method includes: MBS scheduling with an integer multiple of one superframe as a scheduling period, wherein the scheduling period includes one MBS control channel; on a broadcast channel of each superframe in the scheduling period Carrying information indicating whether the superframe contains the above MBS control channel.
  • an MBS data transmitting method is provided.
  • the MBS data transmission method includes: sequentially allocating the MBS service data to be transmitted to each MBS subframe in a scheduling period; and transmitting an MBS resource assignment message on the MBS control channel of the scheduling period, where The MBS resource assignment message carries the allocation order information of each MBS service data on each MBS subframe.
  • a method for transmitting MBS subframe configuration information includes: transmitting configuration information of an MBS subframe in a scheduling period in a broadcast channel of a superframe including an MBS control channel, where the configuration information includes: MBS included in a scheduling period The interval of the superframe of the subframe; or, the configuration information is sent in a broadcast channel of each superframe in the scheduling period, where the configuration information includes information about whether the superframe includes an MBS subframe.
  • the broadcast channel indicates whether the superframe includes the MBS control channel, and the configuration information of the MBS subframe in the scheduling period, so that the terminal can acquire the MBS service data sent by the network side, and implement the MBS service and the unicast in the broadband wireless system.
  • the service shared carrier can efficiently indicate the subframe and resource allocation of the MBS service, and ensure the power saving requirement of the broadcast service terminal in the shared carrier mode.
  • FIG. 1 is a schematic diagram of a three-layer frame structure in a broadband wireless communication system
  • FIG. 2 is a flowchart of a method for implementing a multicast broadcast service according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of a frame structure in Embodiment 1;
  • Embodiment 4 is a schematic diagram of a frame structure in Embodiment 2.
  • FIG. 5 is a schematic diagram of a frame structure in Embodiment 3.
  • FIG. 6 is a schematic diagram of a frame structure in Embodiment 4.
  • Figure 7 is a flow chart of the fifth embodiment. detailed description
  • the present invention provides an improved MBS implementation solution, in which an existing MBS shared carrier mode is implemented in a three-layer frame structure to efficiently perform MBS resource allocation.
  • a super The integer multiple of the frame is a scheduling period (also referred to as a scheduling interval), and the multicast broadcast service is scheduled in the scheduling period, and the broadcast information of each super frame in the scheduling period is sent to the terminal whether the super frame includes the MBS.
  • the control channel and the configuration information of the MBS subframe in the scheduling period ensure the power saving requirement of the broadcast service terminal, and further reduce the performance impact of the broadcast multicast resource allocation on the unicast terminal.
  • Figure 1 shows the composition of a three-layer frame structure.
  • superframe 101 is composed of four unit frames 102, wherein superframe control information 103 is located on a number of symbols at the beginning of the superframe.
  • the unit frame 102 is composed of 8 subframe units 104, and the subframe unit 104 is divided into a downlink subframe unit and an uplink subframe unit, which can be specifically configured according to the system.
  • the subframe unit 104 is composed of six OFDM symbols 105.
  • an MBS control channel indication method is first provided.
  • FIG. 2 is a flowchart of a method for indicating an MBS control channel according to an embodiment of the present invention.
  • an MBS control channel indication method according to an embodiment of the present invention mainly includes the following steps (step S201 - step S203):
  • Step S201 The MBS is scheduled by using an integer multiple of a superframe as a scheduling period, where the scheduling period includes an MBS control channel.
  • Step S203 Carrying information indicating whether the superframe includes the MBS control channel on a broadcast channel of each superframe in a scheduling period.
  • the scheduling period may be set according to actual conditions. Specifically, the scheduling period should be an integer multiple of one superframe, and in each scheduling period, an MBS control channel is included, through the MBS control channel, An MBS resource assignment message can be sent to the terminal.
  • the MBS control channel can be the first MBS in the scheduling period.
  • the preset time-frequency resource location of the subframe is sent, or sent at other locations.
  • the terminal when the network side sends the MBS control channel in the preset time-frequency resource location of the first MBS subframe in the scheduling period, the terminal acquires the superframe from the broadcast channel of each superframe in the scheduling period. Whether the MBS control channel is included, if included, the terminal can read the MBS control channel from the location of the preset time-frequency resource of the first MBS subframe of the superframe.
  • the location information of the MBS control channel is also carried on the broadcast channel of each superframe. That is, if the superframe includes the MBS control channel, the specific location information of the MBS control channel in the superframe is further indicated, and the terminal can learn the location of the MBS control channel according to the location information, thereby decoding the MBS control channel.
  • the broadcast message sent on the broadcast channel of the superframe may carry information indicating a superframe including the MBS control channel.
  • the information about the superframe in which the MBS control channel is located may be a superframe sequence number or a partial superframe sequence number of the superframe in which the MBS control channel is located, or may be a relative superframe number information of the superframe in which the superframe and the MBS control channel are located, Based on the information, the terminal can determine the superframe in which the MBS control channel is located, thereby acquiring the MBS control channel from the superframe.
  • the network side sends an MBS resource assignment message by using the foregoing MBS control channel, where the MBS resource assignment message is used to indicate the MBS service configuration on each MBS subframe in the scheduling period in which the UE is located, specifically, the MBS Resource assignment messages can be encoded in a joint encoding manner.
  • the MBS resource assignment message may be indicated in the following manner.
  • the superframe number is indicated by the superframe number plus the MBS subframe number, where the superframe number is the superframe sequence number of the superframe in which the MBS subframe is located in the scheduling period, and the MBS subframe number is the MBS subframe.
  • the serial number in the superframe is indicated by the superframe number plus the MBS subframe number, where the superframe number is the superframe sequence number of the superframe in which the MBS subframe is located in the scheduling period, and the MBS subframe number is the MBS subframe.
  • All MBS subframes in the scheduling period are numbered according to the manner agreed with the terminal, and are indicated according to the number of each MBS subframe.
  • the MBS subframes in the MBS scheduling interval may be sorted and numbered according to the MBS subframe distribution of each superframe in the scheduling period.
  • the MBS resource assignment data may not carry the sequence information of the specific MBS subframe, and when the network side sends the MBS service data, the MBS service data to be sent is allocated to the scheduling period in a certain order. Specifically, if an MBS service data packet is not placed in one MBS subframe, and then placed on the next MBS subframe, the network side sends the MBS resource assignment message on the MBS control channel.
  • the allocation order information of each MBS service data on each MBS subframe is carried, or is allocated in the order agreed with the terminal in advance.
  • the method further includes:
  • Step S205 Send configuration information of the MBS subframe in the scheduling period on a broadcast channel of one or more superframes in the scheduling period.
  • the configuration information of the MBS subframe in the scheduling period respectively sent on the broadcast channels of the one or more superframes in the scheduling period includes: whether each superframe in the scheduling period includes an MBS subframe.
  • the manner of sending the foregoing configuration information includes, but is not limited to, the following two types: (1) transmitting the configuration information in a broadcast channel of a superframe including an MBS control channel, where the configuration information includes: The interval L of the superframe containing the MBS subframe.
  • the configuration information includes: The interval L of the superframe containing the MBS subframe.
  • one MBS scheduling period includes N superframes, and for a superframe including an MBS control channel, the superframe number is 0, and the superframe numbers are sequentially 0, 1, ..., (Nl). Then contains the superframe of MBS For: 0, L, 2xL, ....
  • each configuration information includes: whether the superframe includes information of an MBS subframe.
  • the information of whether the superframe includes the MBS subframe may be identified by 1 bit, for example, the bit " ⁇ indicates that the superframe contains the MBS subframe, and the bit "0" indicates that the superframe does not include the MBS subframe.
  • the network side may allocate the MBS subframes in the scheduling period to each superframe in a manner agreed in advance with the terminal, and the network side does not need to broadcast relevant information to the terminal, and the terminal is configured according to the MBS subframe.
  • the location receives an MBS resource assignment message from the MBS control channel, and decodes the MBS service in each MBS subframe.
  • the position of the MBS subframe in each superframe may be dynamically set. Therefore, for the superframe including the MBS subframe, the configuration information further includes: a MBS sub-frame in a superframe including an MBS subframe in a scheduling period. The position information of the frame.
  • the location information of the MBS subframe in the superframe may be expressed in the form of bitmap information and/or MBS subframe number information.
  • a superframe contains 4 unit frames, it can be indicated by a 4-bit bitmap that which unit frames in the superframe contain MBS subframes (0, 1, 2, 3).
  • the corresponding bit in the bit bitmap is "1", indicating that the corresponding unit frame contains MBS subframes.
  • the information may be specifically divided into two types: The first case is that the MBS subframe number information included in the unit frame including the MBS subframe is the same, for example, the information may be preset or passed through 2-bit information. To identify the number of MBS subframes in each unit frame, for example, 10 indicates that the MBS subframe is in the second unit frame; and the second is that the number of MBS subframes included in the unit frame including the MBS subframe can be separately configured, for example, Corresponding to the unit frame of " ⁇ " in the 4-bit bit bitmap, the number of included subframes is given separately.
  • the terminal when the terminal accesses, the terminal acquires, from the broadcast channel of the current superframe that is accessed, whether the superframe contains information of the MBS control channel, and if the superframe includes the MBS control channel, The terminal then decodes the MBS control channel from the superframe.
  • the terminal acquires the location information, and according to the decoded MBS control channel; if there is no location information of the MBS control channel in the broadcast channel of the superframe, the terminal Continuing to wait for the next superframe until the broadcast channel of the current superframe indicates that the current superframe contains the MBS control channel, the terminal decodes the MBS control channel from the current superframe, and receives the MBS resource assignment message from the MBS control channel; The configuration information of the MBS subframe of the scheduling period and the information carried in the MBS resource assignment message in one superframe or multiple superframe broadcast channels in the scheduling period, and the MBS service in each MBS subframe is decoded.
  • the method for implementing the multicast broadcast service in the implementation example of the present invention can efficiently indicate the subframe and resource allocation of the MBS service, and ensure the power saving requirement of the broadcast service terminal in the shared carrier mode, and further reduce the broadcast multicast resource allocation. Impact on the performance of unicast terminals.
  • a method for transmitting MBS subframe configuration information is also provided.
  • the method may be used after step S203 of the foregoing MBS control channel indication method, or may be used in other cases where configuration information of an MBS subframe needs to be transmitted. use.
  • the MBS scheduling period includes N superframes.
  • the superframe number is 0, and the superframe numbers are sequentially 0, 1, (Nl).
  • the superframes containing MBS are: 0, L, 2xL, .... Or,
  • the configuration information is transmitted in a broadcast channel of each superframe in the scheduling period, wherein the configuration information includes information on whether the superframe includes an MBS subframe.
  • the information of whether the superframe contains the MBS subframe may be identified by 1 bit, for example, the bit " ⁇ " indicates that the superframe contains the MBS subframe, and the bit "0" indicates that the superframe does not include the MBS subframe.
  • the network side may schedule the week in a manner agreed with the terminal in advance. During the period, the MBS subframes are allocated in each superframe, and the network side does not need to broadcast related information to the terminal.
  • the terminal decodes each MBS sub-subsequent according to the position agreed by the MBS subframe and the MBS resource assignment message received from the MBS control channel. MBS service in the frame.
  • the position of the MBS subframe in each superframe may be dynamically set. Therefore, for the superframe including the MBS subframe, the configuration information further includes: a MBS sub-frame in a superframe including an MBS subframe in a scheduling period. The position information of the frame.
  • the location information of the MBS subframe in the superframe may be expressed in the form of bitmap information and/or MBS subframe number information.
  • a superframe contains 4 unit frames, it can be indicated by a 4-bit bitmap that which unit frames in the superframe contain MBS subframes (0, 1, 2, 3).
  • the corresponding bit in the bit bitmap is "1", indicating that the corresponding unit frame contains MBS subframes.
  • the information may be specifically divided into two types: The first case is that the MBS subframe number information included in the unit frame including the MBS subframe is the same, for example, the information may be preset or passed through 2-bit information. To identify the number of MBS subframes in each unit frame, for example, 10 indicates that the MBS subframe is in the second unit frame; and the second is that the number of MBS subframes included in the unit frame including the MBS subframe can be separately configured, for example, Corresponding to the unit frame of " ⁇ " in the 4-bit bit bitmap, the number of included subframes is given separately.
  • a method for transmitting MBS service data which may be used in the above MBS control channel indication method, or in other cases where MBS service data needs to be transmitted.
  • the MBS service data sending method includes: sequentially allocating MBS service data to be transmitted to each MBS subframe in a scheduling period; and then transmitting the MBS resource assignment on the MBS control channel of the scheduling period.
  • the message, wherein the MBS resource assignment message carries allocation order information of each MBS service data on each MBS subframe.
  • Embodiment 1 In order to further understand the specific embodiments of the technical solutions provided by the embodiments of the present invention, the following The specific embodiments of the technical solutions of the embodiments of the present invention are described by way of specific embodiments. Embodiment 1
  • FIG. 3 is a schematic diagram of MBS subframe configuration according to an embodiment of the present invention.
  • an MBS scheduling interval (that is, a scheduling period) includes 16 superframes 301.
  • the superframe interval including the MBS subframe is 4, and if the superframe number of the MBS control channel is 0, the sequence numbers of the superframes including the MBS subframe are 0, 4, 8 , 12.
  • the preset static setting in a unit frame 302 of one superframe, one unit frame is divided into MBS subframes 303, and the unit frames including the MBS subframes each include only one MBS subframe.
  • the terminal When receiving, the terminal decodes the MBS service on each MBS subframe according to a preset rule and an MBS resource assignment message received from the MBS control channel.
  • the MBS subframe is dynamically configured, and the location of the MBS subframe is represented by the bit bitmap and the number of MBS subframes.
  • an MBS scheduling interval includes 16 superframes 401. If the superframe number of the MBS control channel is 0, the MBS sub-module is included according to system settings. The superframes of the frame are sequentially numbered 0, 3, 8, and 10. Then, bitmap information and MBS subframe number information of a unit frame including MBS subframes are transmitted in the broadcast channel of each superframe.
  • a superframe contains 4 unit frames 402, and a 4-bit bit bitmap can indicate a unit frame of the superframe specifically containing MBS subframes (0, 1, 2, 3).
  • the corresponding bit in the bit bitmap is " ⁇ ", indicating that the corresponding unit frame includes the MBS subframe 403. As shown in FIG. 3, the bit position is 1001, indicating the first unit frame and the fourth of the superframe.
  • the MBS subframe 403 is included in the unit frame.
  • the MBS subframe number information indicating the location of the MBS subframe in the superframe may include two cases: The first case is the number of MBS subframes included in the unit frame including the MBS subframe. Similarly, it can be preset or dynamically set, see Table 1; The second is that the number of MBS subframes included in the unit frame containing the MBS subframe can be configured separately. For example, if the number of subframes in the unit frame including the MBS subframe is the same, the number of MBS subframes in each unit frame is identified by 2-bit information, as shown in Table 2. If the number of subframes in the unit frame including the MBS subframe can be separately configured, the unit frame corresponding to the 4-bit bit bitmap is " ⁇ ", and the number of MBS subframes included is indicated by 2 bits, respectively.
  • a method of indicating the position of the MBS control channel is described. In this embodiment, it is indicated in the broadcast channel of each superframe whether the superframe includes the location of the superframe in which the MBS control channel and the MBS control channel are located.
  • the MBS includes an integer multiple of the superframe as a scheduling interval (ie, a scheduling period), and includes an MBS control channel in an MBS scheduling interval, which is indicated in a broadcast channel of each superframe in the MBS scheduling interval. Whether the superframe contains an MBS control channel. For a superframe that does not include an MBS control channel, superframe information in which the MBS control channel is located may be indicated in the broadcast channel. In a specific implementation process, the MBS control channel may transmit on the first MBS subframe of the corresponding MBS scheduling interval or indicate the location of the MBS control channel in the broadcast channel.
  • the superframe information of the track may be a superframe sequence number or a partial superframe sequence number of the superframe in which the MBS control channel is located, or may be a relative superframe number information of the superframe in which the current superframe and the MBS control channel are located.
  • FIG. 5 is a schematic diagram showing the location of the MBS control channel in the embodiment.
  • an MBS scheduling interval includes four superframes 501, and the MBS control channel is transmitted in the superframe 0, that is, the superframe 505.
  • the broadcast channel 503 of superframe 0 is transmitted in a superframe header 502 indicating that the superframe 505 includes the MBS control channel 504 in the broadcast channel, and the first MBS subframe of the MBS control channel 504 in the superframe 505. Sent on 506.
  • the other superframes of the scheduling interval do not include the MBS control channel, and the broadcast channel indicates that the superframe does not include the MBS control channel, and indicates the superframe where the MBS control channel is located. information.
  • an MBS resource assignment message is sent to the MBS control channel for description.
  • the MBS scheduling is an integer multiple of a superframe as a scheduling interval.
  • FIG. 6 is a schematic diagram of the MBS resource assignment message transmission in the embodiment.
  • the MBS control channel 603 is at the start position of the first MBS subframe 604 corresponding to the MBS scheduling interval (16 superframes).
  • the MBS control channel 603 is not included in the other MBS subframes 608 of the scheduling interval.
  • the broadcast channel 607 in superframe 0 i.e., superframe 601
  • superframe header 602 Superframe Header
  • the broadcast channel of the other superframe indicates that the superframe does not contain the MBS control channel.
  • the channels used by the MBS control channel 603 and the MBS service data transmitted on the MBS subframe are multiplexed in an FDM manner (in a specific implementation, they may also be multiplexed in a time division manner).
  • the MBS resource assignment message 606 is sent on the MBS Control Channel 603, where the MBS Resource Assignment Message 606 contains the MBS service assignments on all MBS subframes in the MBS scheduling interval.
  • the sending of the MBS resource assignment message 606 may be encoded by means of joint coding.
  • the MBS resource assignment message 606 may indicate each MBS in the MBS scheduling interval. MBS service allocation for subframes.
  • the MBS resource assignment message 606 can indicate a specific MBS subframe in two different ways: The first is by the superframe number + the MBS subframe number, where the superframe number is the relative in the MBS scheduling interval.
  • the superframe number for example, for a superframe containing an MBS control channel, the superframe number is 0. If an MBS interval contains N superframes, the sequence numbers of the superframes are 0, 1, ..., (N-l).
  • the subframe number is the relative sequence number of each MBS subframe in the superframe. For example, if one superframe contains a total of M MBS subframes, the relative sequence numbers are: 0, 1, ..., (M-l).
  • the second method is to re-number the MBS subframes in the entire MBS scheduling interval, and identify the MBS subframes in the entire MBS scheduling period by using the re-ordered MBS subframe number in the MBS resource assignment message.
  • the base station scheduler sorts the MBS subframes in the MBS scheduling interval according to the MBS subframe distribution of each superframe in the MBS scheduling interval.
  • the terminal After decoding the MBS control channel, the terminal saves the MBS resource assignment message according to the information of the MBS subframe configuration carried in the broadcast channel in each superframe in the MBS scheduling interval, according to the MBS subframes carried in the MBS resource assignment message.
  • the assignment information of the MBS service decodes the MBS service in each MBS subframe.
  • the MBS resource assignment message may not carry specific MBS subframe sequence number information, and each MBS data packet is sequentially allocated in each MBS subframe within the scheduling interval. If an MBS data packet is not placed in one MBS subframe, continue. Placed on the next MBS subframe, the terminal sequentially decodes the required MBS data packets from the corresponding resources according to the indication in the MBS resource assignment message.
  • the method for decoding the data sent by the network to the network side is described.
  • the MBS resource assignment message does not carry the MBS subframe sequence information as an example, that is, in this embodiment, the network The side allocates MBS service data packets on each MBS subframe of the scheduling interval in a certain order, and the sequence is sent to the terminal through the MBS resource assignment message.
  • FIG. 7 is a flowchart of decoding, by the terminal, the data sent by the network side in the embodiment.
  • the terminal decoding the data sent by the network side mainly includes the following steps: Step 701: Each MBS service packet is sequentially allocated to each MBS subframe in the scheduling interval. If one MBS data packet is not placed in one MBS subframe, the MBS data packet is placed on the next MBS subframe.
  • Step 702 The terminal decodes the MBS resource assignment message, obtains the order and size of each MBS service packet according to the MBS resource assignment message, and calculates the MBS subframe and the specific time-frequency resource in which the MBS service packet is located in the scheduling interval. position.
  • Step S703 The terminal decodes the corresponding MBS service packet according to the calculated MBS subframe and the specific time-frequency resource location.
  • each superframe includes an MBS control channel and configuration information of an MBS subframe in the scheduling period is transmitted by using a broadcast channel of each superframe in a scheduling period, It can efficiently indicate the subframe and resource allocation of the MBS service, and can not only ensure the power saving requirement of the broadcast service terminal in the shared carrier mode, but also reduce the performance impact of the MBS resource allocation on the unicast terminal.

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Abstract

L'invention concerne un procédé pour indiquer un canal de commande de service de diffusion à diffusion sélective (MBS) et un procédé pour transmettre des données MBS et des informations de configuration de sous-trames MBS. Le procédé pour indiquer le canal de commande MBS comprend les étapes suivantes : le MBS est programmé dans un cycle de programmation qui est un multiple d'une supertrame, un canal de commande MBS étant compris dans le cycle de programmation (S201); des informations qui indiquent si la supertrame contient le canal de commande MBS sont transportées dans le canal de diffusion de chaque supertrame dans le cycle de programmation (S203). L'application de la solution technique décrite dans la présente invention peut indiquer efficacement la sous-trame et l'attribution de ressources du service MBS, et donc garantir les exigences d'économies d'électricité d'un terminal de service de diffusion d'une manière partagée par le transporteur.
PCT/CN2009/076165 2009-01-05 2009-12-29 Procédé pour indiquer un canal de commande mbs, procédé pour transmettre des données mbs et des informations de configuration de sous-trames mbs WO2010075766A1 (fr)

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CN101001125A (zh) * 2006-12-18 2007-07-18 中兴通讯股份有限公司 一种移动多媒体广播电子业务指南多路传输的方法
CN101090525A (zh) * 2007-08-06 2007-12-19 中兴通讯股份有限公司 多播广播业务调度方法

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