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WO2016086419A1 - Procédé, dispositif et système de diffusion/multidiffusion multimédia - Google Patents

Procédé, dispositif et système de diffusion/multidiffusion multimédia Download PDF

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Publication number
WO2016086419A1
WO2016086419A1 PCT/CN2014/093164 CN2014093164W WO2016086419A1 WO 2016086419 A1 WO2016086419 A1 WO 2016086419A1 CN 2014093164 W CN2014093164 W CN 2014093164W WO 2016086419 A1 WO2016086419 A1 WO 2016086419A1
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WIPO (PCT)
Prior art keywords
mce
receive
determined
embms
session
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Ceased
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PCT/CN2014/093164
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English (en)
Chinese (zh)
Inventor
张毅
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to PCT/CN2014/093164 priority Critical patent/WO2016086419A1/fr
Priority to CN201480036202.XA priority patent/CN105519147B/zh
Publication of WO2016086419A1 publication Critical patent/WO2016086419A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/16—Arrangements for providing special services to substations
    • H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
    • H04L12/189—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast in combination with wireless systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a multimedia broadcast multicast service method, apparatus, and method.
  • the radio access network provides a peer-to-peer unicast bearer service, which supports upper-layer user services such as file downloading and streaming, and the unicast bearer service cannot share the wireless and transmission resources of the access network.
  • the traffic generated by mobile video services and application store downloads is increasing rapidly.
  • LTE networks inevitably generate congestion risks.
  • the user experience is degraded.
  • Operators face the dilemma of increasing revenues.
  • the broadcast multicast service is introduced on the mobile network, and the user services with concentrated interest are transmitted in a point-to-multipoint manner by sharing wireless and transmission resources, for example, live broadcast of major event videos, push of hot news, etc.
  • it provides opportunities for operators to reduce equipment investment, explore new business models, and increase revenue while reducing network load.
  • the Multimedia Broadcast Multicast Service is a multimedia broadcast multicast function defined in 3GPP R6.
  • the MBMS standard work was launched in 2002 and was frozen in September 2005.
  • the actual network implementation was in 2007. Since 2008, 3G networks have gradually promoted MBMS services.
  • MBMS is one of the mobile TV standards. Mobile operators only need to upgrade their existing WCDMA/HSPA networks to provide MBMS mobile TV services on a large scale.
  • the eMBMS (Enhanced Multimedia Broadcast Multicast Service) technology is an enhanced broadcast multicast technology based on the 3GPP R9 protocol and is one of the most efficient video bearer technologies in the mobile field. Compared with the previous generation MBMS video bearer technology, eMBMS technology can support more bandwidth, which means more channels and video content, while the video picture is clearer and smoother, and the user experience is better.
  • FIG. 1 shows a logical architecture diagram of an existing eMBMS, which mainly includes the following logical entities: a mobility management entity (MME), an eMBMS gateway. (eMBMS gate way, eMBMS-GW), multi-cell/multicast coordination entity (MCE), base station (eg, evolved Node B, eNB, or other type of base station), MBMS-GW and The base station communicates through the M1 interface, and the MCE communicates with the base station through the M2 interface, and the MME communicates with the MCE through the M3 interface.
  • the MCE is responsible for allocating radio resources of all base stations in the Multimedia Broadcast multicast service Single Frequency Network (MBSFN) area, and the base station is responsible for providing services for users of the cells covered by the MBSFN area.
  • MMSFN Multimedia Broadcast multicast service Single Frequency Network
  • An embodiment of the present invention provides a multimedia broadcast multicast service system, which can enable a user equipment to implement an eMBMS service through WIFI.
  • a first aspect of the present invention provides a multimedia broadcast multicast service system, including: a multimedia broadcast multicast service gateway (MBMS gate way, MBMS-GW), and a multi-cell/multicast coordination entity (MCE). And at least one access point (AP);
  • MBMS gate way MBMS-GW
  • MCE multi-cell/multicast coordination entity
  • AP access point
  • the MCE is configured to determine, according to the received area identifier, an AP that needs to receive an eMBMS session, and send an eMBMS session to the determined AP.
  • the determined AP is further configured to broadcast the multicast packet received from the MBMS-GW in a WIFI air interface.
  • the determining, by the received area identifier, the access point AP, and sending the eMBMS session to the determined AP includes:
  • the MCE establishes a connection between the MCE and the at least one AP, determines an access point AP according to the received area identifier, and sends an eMBMS session to the determined AP.
  • the access controller (AC) is further included.
  • the MCE is configured to determine an AP according to the received area identifier, and send an eMBMS session to the determined AP, including:
  • the MCE is configured to determine an AC according to the received area identifier, and send an eMBMS session to the determined AC, where the determined AC determines an AP according to the area identifier, and distributes an eMBMS session to the determined AP.
  • the MCE saves a service area list, where the MCE matches the service The area list and the received area identifier determine the AP that needs to receive the eMBMS session.
  • the AP saves a service area list, and the AP sends the service
  • the area list is reported to the MCE, and the MCE matches the service area list and the received area identifier to determine an AP to receive an eMBMS session.
  • the AC saves a service area list, and the AC reports the service area list to the MCE And the MCE matches the service area list and the received area identifier, and determines an AC that needs to receive an eMBMS session.
  • a sixth possible implementation manner of the first aspect when the area identifier that is received by the MCE is determined to be an AP and an eNB The MCE determines to send an eMBMS session only to the determined AP.
  • a seventh possible implementation manner of the foregoing aspect when the MCE determines that the AP and the eNB are determined according to the received area identifier, the MCE determines that only the The determined AP sends an eMBMS session, including:
  • the MCE determines that there is an AP and an eNB according to the received area identifier, the determined AP and the determined eNB correspond to the same service area, and the MCE determines to send only the eMBMS session to the determined AP.
  • the AP is further configured to broadcast channel information in an air interface.
  • the UE is further configured to receive, by using a channel obtained by the parsing, a multicast packet sent by the AP And parsing the multicast packet.
  • an MCE including: a receiving unit, a processing unit, and a sending unit,
  • the receiving unit is configured to receive an eMBMS session sent by the MME, where the eMBMS session carries an area identifier;
  • the processing unit is configured to determine, according to the received area identifier, an AP that needs to receive an eMBMS session;
  • the sending unit is configured to send an eMBMS session to the determined AP.
  • the processing unit is further configured to:
  • the processing unit determines, according to the area identifier received by the receiving unit, an AC that receives an eMBMS session, so that the AC determines, according to the AP list, an AP that needs to receive an eMBMS session.
  • the method further includes a storage unit, where the storage unit is configured to store a service area list, The processing unit matches the service area list and the received area identifier, and determines an AP that needs to receive an eMBMS session.
  • the receiving unit is further configured to receive a service area list that is reported by the AP, where the processing unit matches the service area list and receives the The area ID identifies the AP that needs to receive the eMBMS session.
  • the receiving unit is further configured to receive a service area list that is reported by the AC, where the processing unit matches The service area list and the received area identifier determine an AC that needs to receive an eMBMS session.
  • the determining unit is further configured to: when the received area identifier When it is determined that there is an AP and an eNB, it is determined that only the eMBMS session is sent to the determined AP.
  • the determining, when the received area identifier determines that the AP and the eNB are determined, determining that only the determining The AP sends an eMBMS session including:
  • the determining unit when the received area identifier determines that there is an AP and an eNB, the determined AP and the determined eNB correspond to the same service area, and the determining unit determines to send only the eMBMS to the determined AP. Conversation.
  • a third aspect provides an access point AP, including: a receiving unit, a processing unit, and a broadcast unit;
  • the receiving unit is configured to receive an eMBMS session sent by the MCE or the AC, where the eMBMS session carries a multicast address identifier;
  • the processing unit is configured to establish a connection with the MBMS-GW according to the multicast address identifier
  • the receiving unit is further configured to receive a multicast packet from the MBMS-GW;
  • the broadcast unit is configured to broadcast the received multicast packet on an air interface.
  • the storage unit is configured to store a service area list, so that the MCE matches the service area list and the multicast area identifier, and determines an AP that needs to receive an eMBMS session.
  • the sending unit is further configured to report the service area list that is stored by the storage unit to the MCE.
  • the broadcast unit is further configured to broadcast in a WIFI air interface Channel information.
  • an access controller AC including: a receiving unit and a processing unit,
  • the receiving unit is configured to receive an eMBMS session sent by the MCE, where the eMBMS session carries an area identifier;
  • the processing unit is configured to determine, according to the area identifier, an AP that needs to receive a session;
  • the sending unit is configured to distribute an eMBMS session to an AP that determines that a session needs to be received.
  • the storage unit is configured to store a service area list
  • the sending unit is further configured to send the service area list to the MCE.
  • the processing unit is further configured to: according to the multicast address carried in the eMBMS session The identity establishes a connection with the MBMS-GW;
  • the receiving unit is further configured to receive a multicast packet from the eMBMS.
  • the sending unit is further configured to send the multicast packet to the determined AP.
  • a UE for supporting receiving an eMBMS broadcast by using a WIFI, and is characterized by comprising: a receiving unit, a processing unit, and a display unit;
  • the receiving unit is configured to receive channel information broadcast by the AP;
  • the processing unit is configured to parse the received channel information
  • the display unit is configured to display the parsed channel information.
  • the receiving unit is further configured to receive a multicast packet sent by the AP;
  • the processing unit is further configured to parse the multicast packet
  • the display unit is further configured to parse channel content presented by the multicast package.
  • the multimedia broadcast multicast system includes a multimedia broadcast service gateway MBMS-GW, a multi-cell multicast cooperative entity MCE, and an access point AP.
  • the MCE receives the session message carrying the area identifier from the MME, and determines, according to the area identifier, that the session message needs to be received.
  • the AC sends a session message to the AC, and the AC determines the AP that needs to receive the session message and sends a session message to the AP.
  • the AP establishes a connection with the MBMS-GW according to the received session message, and receives the multicast packet from the MBMS-GW. After the AP is parsed, it is broadcast on the air interface.
  • the embodiment of the present invention can enable the user equipment to implement the eMBMS service through the WIFI, thereby maintaining the continuity of the eMBMS service.
  • FIG. 1 is a logical architecture diagram of an eMBMS in the background art
  • 2-1 is a schematic structural diagram of a multimedia broadcast multicast service system according to an embodiment of the present invention.
  • FIG. 2-2 is a schematic diagram of another multimedia broadcast multicast service system according to an embodiment of the present invention.
  • FIG. 3 is a schematic flowchart of a multimedia broadcast multicast service system according to an embodiment of the present disclosure
  • FIG. 4 is a schematic diagram of another multimedia broadcast multicast service system according to an embodiment of the present invention.
  • FIG. 5 is a schematic flowchart of another multimedia broadcast multicast service system according to an embodiment of the present disclosure.
  • 6-1 is a schematic diagram of another multimedia broadcast multicast service system according to an embodiment of the present invention.
  • FIG. 6-2 is a schematic diagram of another multimedia broadcast multicast service system according to an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of another multimedia broadcast multicast service system according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic flowchart of another multimedia broadcast multicast service system according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic flowchart of another multimedia broadcast multicast service system according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of an MCE according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic structural diagram of an AC according to an embodiment of the present disclosure.
  • FIG. 12 is a schematic structural diagram of an AP according to an embodiment of the present disclosure.
  • FIG. 13 is a schematic structural diagram of a UE according to an embodiment of the present disclosure.
  • FIG. 14 is a schematic structural diagram of another MCE according to an embodiment of the present disclosure.
  • FIG. 15 is a schematic structural diagram of another AC according to an embodiment of the present disclosure.
  • FIG. 16 is a schematic structural diagram of another AP according to an embodiment of the present disclosure.
  • FIG. 17 is a schematic structural diagram of another UE according to an embodiment of the present disclosure.
  • the embodiment of the present invention provides a broadcast system, as shown in FIG. 2-1, including an MBMS-GW, an MCE, an access point (AP), and an access controller (AC);
  • the sent session message determines the AC to receive the session message according to the area identifier in the session message, and the MCE and the AC can communicate through the M2 interface; the AC receives the session message sent by the MCE, and determines the AP to receive the session according to the session message.
  • the AC and the AP can communicate through the CAPWAP protocol or the private protocol interface.
  • the AP After receiving the session message sent by the AC, the AP establishes a connection with the MBMS-GW and receives the multicast packet from the MBMS-GW.
  • the AP and the MBMS-GW Communication can be performed through the M1 interface; the AP receives more After the broadcast, broadcast on the WIFI air interface.
  • the M1 interface and the M2 interface can follow the existing 3GPP protocol.
  • the broadcast system provided by the embodiment of the present invention may specifically implement the process shown in FIG. 3:
  • the MCE receives a session message sent by the MME, for example, a session start request, where the session message carries an area identifier (if the session message carries multiple area identifiers, which can be expressed in the form of a region list), the MCE according to the The received area identification determines the AC to receive the session message and sends a session message to these determined ACs. It can be understood that the MCE can communicate with multiple ACs, and an AC is taken as an example for illustration.
  • the area identifier received by the MCE may be used to identify the eMBMS service area.
  • the eMBMS service area refers to the geographical area range sent by the eMBMS service. If multiple eMBMS services send the same geographical area, these eMBMS services can use the same area identifier.
  • the eMBMS service area can be an area with common characteristics, such as the Expo Park, large shopping malls, airports, etc.
  • An eMBMS service can be sent to multiple eMBMS service areas. The network operation and maintenance personnel can divide multiple area identifiers for the whole network cell and circle multiple area identifiers to form an eMBMS service area.
  • the MCE determines, according to the received area identifier, the AC to receive the session message, which may be implemented in multiple manners.
  • the first implementation manner includes:
  • the MCE queries the corresponding relationship table between the service area and the AC according to the received area identifier carried in the session message sent from the MME.
  • the service area may be a set of the area identified by the area identifier, thereby determining the AC to receive the session.
  • the MCE learns the service area identified by the area identifier according to the area identifier carried in the session message sent by the MME, and determines the need to receive the session according to the obtained service area based on the corresponding relationship between the service area and the AC.
  • AC The correspondence between the service area and the AC is a representation of the correspondence between the service area and the AC. It can also be in other forms.
  • the correspondence table is used as an example.
  • the corresponding relationship table between the service area and the AC may be stored in the MCE; or may be stored in other locations in the network.
  • the MCE may obtain a correspondence table between the service area and the AC through a signaling message, or the MCE passes the signaling. The message is queried to the correspondence table of the service area and the AC stored in other locations in the network.
  • the corresponding relationship table between the service area and the AC may be generated by, for example, as shown by 3012 in FIG. 3: the MCE is available according to the AP.
  • the service area list, and the affiliation relationship between the AP and the AC generates a correspondence table between the service area and the AC.
  • the MCE may further generate a correspondence table between the service area and the AC according to the correspondence between the AC and the SCTP link, the service area list that the AP can use, and the affiliation relationship between the AP and the AC.
  • the MCE can obtain the affiliation relationship between the AP and the AC in the following manner:
  • the AC is connected to the MCE.
  • the AC and the MCE can establish a Stream Control Transmission Protocol (SCTP) connection.
  • SCTP Stream Control Transmission Protocol
  • the AC passes the message, for example, setup.
  • the request message is reported to the AP-managed AP list, and the MCE generates an affiliation relationship between the AP and the AC according to the AP-managed AP list carried in the AC report message.
  • the affiliation table is used as an example to indicate the relationship between the AP and the AC.
  • the implementation form is not limited.
  • the service area list that can be used by the AP can be pre-configured in the MCE, or the AC can be reported to the MCE.
  • the AC reports the service area list configured by the AC to the MCE through the setup request message.
  • the MCE determines the AC to receive the session message according to the received area identifier, and the second implementation manner includes:
  • the MCE receives the session message that is sent by the MME and carries the area identifier, determines the AC to receive the session, and then establishes a connection with the AC.
  • the specific implementation process refers to the first mode. The difference is that, in the second implementation manner, the MCE first determines the AC to receive the session according to the area identifier, and then establishes a connection with the determined AC.
  • the specific implementation process is in the first manner. It has been described in detail and will not be described here.
  • the MCE determines the AC to receive the session message, it distributes the session message to these determined ACs.
  • the MCE queries the corresponding AC of the service area and the AC according to the area identifier carried in the session message received from the MME, and determines that the corresponding AC is queried to the service area, it is determined that the session message is distributed to the AC. Specifically, the MCE passes the M2 interface. Distributing a session message to the corresponding AC. Optionally, the MCE carries the AP list of the AC redistribution in the session message that is distributed to the AC.
  • the AC receives the session message distributed by the MCE, determines the APs to receive the session message, and distributes the session message to the APs;
  • the MCE sends a session start request message to the determined AC, where the message carries the AP list managed by the AC receiving the message, and the AC determines the AP to receive the session message according to the AP list, and distributes the session message to the determined APs. .
  • the AC may query the configured service area list of the configured AP according to the service area list carried in the session message sent by the MCE, determine the APs to receive the session, and distribute the session message to the APs. Specifically, the AC determines, according to the service area information carried in the session message sent by the MCE, the area that needs to receive the MBMS service, and then determines which APs are required to receive the MBMS service according to the service area of the available AP that the AC side knows. The area, thereby determining the APs that need to receive the session, and distributing session messages to these APs.
  • the AP receives the AC distribution session message, establishes a connection between the AP and the MBMS-GW according to the multicast address identifier carried in the session message, and receives the multicast packet from the MBMS-GW.
  • the AP after receiving the session message distributed by the AC, the AP records the correspondence between the TMGI (temporary mobile group identity) and the user plane multicast IP address carried in the session message, where the TMGI is used in the eMBMS.
  • An identifier that uniquely identifies the multicast and broadcast bearer service, and joins the multicast group according to the user plane multicast IP address carried in the session, and the AP and the MBMS-GW communicate through the M1 interface.
  • the AP receives the multicast packet from the MBMS-GW through the M1 interface.
  • the AP may periodically broadcast channel information on the air interface, so that the UE receives the channel information broadcast by the AP.
  • connection between the AC and the MBMS-GW can be established.
  • the M1 interface can be used to implement the mapping between the TMGI and the user-side multicast IP address carried in the AC. Add the user-side multicast IP address to the M1 interface.
  • the AC receives the multicast packet from the MBMS-GW through the M1 interface, and then distributes the received broadcast data to the designated AP.
  • the AP processes the received multicast packet and broadcasts it on the WIFI air interface.
  • the AP strips the GTPU and the Sync header to obtain the payload IP packet, and broadcasts the payload IP packet in the WIFI air interface; and simultaneously records the correspondence between the payload IP packet multicast address and the TMGI, and the AP summary The correspondence between all MBMS sessions of the AP is broadcast on the specified IP multicast group configured.
  • the UE can receive the eMBMS service through the WIFI.
  • the UE For a UE that does not support WIFI and LTE concurrent, that is, the UE cannot simultaneously support receiving eMBMS service through WIFI and receiving eMBMS service through LTE network; or although the UE supports WIFI and LTE concurrent, when the UE enters LTE weak coverage area, the UE terminates Receiving the eMBMS service through the LTE network, and accessing the WIFI to receive the eMBMS service.
  • the embodiment of the present invention provides a broadcast system that can implement eMBMS through WIFI, and the UE can implement the eMBMS service after entering the WIFI coverage area. Or, when the UE enters the WIFI coverage area from the LTE coverage area, the continuity of the eMBMS service is maintained.
  • An embodiment of the present invention provides another multimedia broadcast multicast service system, including, as shown in FIG. 4, an MBMS-GW, an MCE, and an AP.
  • the MCE determines that the AP to receive the session and distributes the session message to the AP, the MCE and the The APs communicate with each other through the M2 interface.
  • the AP receives the multicast packets from the MBMS-GW and broadcasts them on the air interface.
  • the AP communicates with the MBMS-GW through the M1 interface.
  • the M1 interface and the M2 interface comply with the 3GPP protocol.
  • the broadcast system provided by the embodiment of the present invention may specifically implement the method steps shown in FIG. 5.
  • the difference between the broadcast system provided in this embodiment and the broadcast system provided in the first embodiment is that only the AP is included in the embodiment, and the AC is not included.
  • the functions of the AP in this embodiment combine the functions of the AC and the AP in the first embodiment.
  • the specific implementation of the broadcast process is as follows:
  • the MCE receives the session message sent by the MME, where the session message carries the area identifier, and the MCE determines the AP according to the received area identifier, and sends a session message to the determined APs.
  • the specific MCE determines that the AP process to receive the session may refer to the process of determining, by the MCE in Embodiment 1, the AC to receive the session;
  • the AP establishes a location according to the multicast address identifier carried in the session message. Determining a connection between the determined AP and the MBMS-GW, and receiving a multicast packet from the MBMS-GW;
  • the determined AP is further configured to broadcast the multicast packet received from the MBMS-GW in a WIFI air interface.
  • the AP in this embodiment can implement the functions of the AC and the AP in the first embodiment.
  • the UE can receive the eMBMS service through the WIFI.
  • the UE For a UE that does not support WIFI and LTE concurrent, that is, the UE cannot simultaneously support receiving eMBMS service through WIFI and receiving eMBMS service through LTE network; or although the UE supports WIFI and LTE concurrent, when the UE enters LTE weak coverage area, the UE terminates Receiving the eMBMS service through the LTE network, and accessing the WIFI to receive the eMBMS service.
  • the embodiment of the present invention provides a WIFI broadcast system, and the UE can implement the eMBMS service after entering the WIFI coverage area, or the UE covers the LTE. When the area enters the WIFI coverage area, the continuity of the eMBMS service is maintained.
  • the embodiment of the present invention provides another multimedia broadcast multicast service system, including, as shown in FIG. 6-1, FIG. 6-2, MBMS-GW, MCE, AC, AP, and eNB.
  • the embodiment of the present invention is based on the foregoing embodiment.
  • the base station is added (the eNB is taken as an example for description), so that the eMBMS service can be implemented by the base station.
  • the MCE determines the eNB according to the area identifier, and the MCE and the eNB communicate through the M2 interface, and the eNB receives the IP multicast packet from the MBMS-GW through the M1 interface, and sends the IP packet through the air interface in the specified frame when the service scheduling period arrives.
  • the broadcast mode of the broadcast system provided by the embodiment of the present invention is as shown in FIG. 8.
  • the specific implementation process is as follows:
  • the MCE receives the session message sent by the MME, and the session message carries the area identifier. The MCE determines whether there is a corresponding AC or cell according to the area identifier.
  • the MCE determines whether there is a corresponding AC according to the received area identifier, and can query the corresponding relationship table of the service area and the AC, and if the query has an AC, the determined AC is determined.
  • Distribute session messages which in turn determine that a session message is to be received
  • the AP implements the eMBMS service through the WIFI.
  • the specific implementation process is as described in the foregoing embodiment, and is not described here.
  • the MCE may also query the corresponding eNB list according to the area identifier, so as to determine the eNB that is to receive the eMBMS session, and if the corresponding cell is found in the service area according to the received area identifier, the eMBMS session is distributed to the eNB to which the cell belongs. Specifically, the MCE determines, according to the service QoS parameter corresponding to the eMBMS session, whether the resources in the MBSFN subframe resource pool are sufficient, and if sufficient, allocates resources required for the physical multicast channel (PMCH), and allocates session correspondence. LCID.
  • PMCH physical multicast channel
  • the MCE informs the eNB to establish a corresponding M1 interface through the Session Start process (the eNB sends an IGMP report message to request the establishment of the multicast routing of the MBMS GW to the eNB); on the other hand, the eNB is notified to reserve the corresponding air interface through the Scheduling Info process. Resources.
  • the eNB notifies the UE by using a system message according to the air interface resource configuration, and unpacks and caches the IP multicast packet received from the MBMS GW.
  • the eNB sends and receives services through the air interface in the specified frame.
  • the eMBMS broadcast service is implemented by the eNB.
  • the AC and the AP may be integrated, and the function of the AC and the function of the AP are implemented by a single AP.
  • the specific implementation manner is as shown in FIG. 9 and has been discussed in detail in the foregoing embodiment. Let me repeat.
  • the MCE When the MCE queried the corresponding service cell and the AC according to the received service area identifier, the MCE can separately distribute the session to the eNB and the AC corresponding to the service area, and different UEs can use WIFI and LTE respectively. Bearer to implement eMBMS service.
  • a UE is used as an example to illustrate that if the UE only enters the WIFI coverage area of the broadcast system shown in this embodiment, the UE can implement the eMBMS service by using the WIFI as the bearer; if the UE only enters the LTE coverage of the broadcast system. In the area, the UE can implement the eMBMS service by using the LTE as the bearer; if the UE enters the area, the WIFI coverage and the LTE coverage are simultaneously performed, that is, the AC corresponding to the service area carried in the MCE-distributed message and the cell corresponding to the carried service area.
  • the UE can receive the eMBMS service through the LTE network, or receive other eMBMS services through the WIFI network, for the UE that supports the WIFI service and the LTE service.
  • Content for example, the UE can receive five CCTV1-CCTV5 through the LTE network.
  • the channel can also receive other different channels such as CCTV11-CCTV14 through the WIFI network.
  • the WIFI coverage can be used as the inter-frequency coverage area of the eMBMS.
  • the WIFI coverage can flexibly customize the broadcast service of the small area. Therefore, the user can implement more regionalized program content through the UE in the coverage area of the WIFI.
  • the UE can receive the eMBM broadcast service through the WIFI when the UE enters the WIFI network separately; when the UE enters the LTE network separately, the eMBM broadcast service can be received through the LTE network; when the UE enters the WIFI network When the LTE network shares the area, the UE selects the WIFI network preferentially, so that the eMBMS service can be received through the WIFI network.
  • the MCE may choose to only send the session to the corresponding AC, so that the UE can receive the eMBMS service only through the AP to which the AC belongs, that is, the WIFI is implemented by using the WIFI.
  • the eMBMS service refer to the foregoing embodiment, and details are not described herein again.
  • the MCE may also only distribute the session to the corresponding AC, so that the UE may
  • the eMBMS service is received only through the AP to which the AC belongs.
  • the MCE can also choose to implement the eMBMS service only through the eNB.
  • the above is the structure of the eMBMS service by arranging only WIFI as the bearer, as shown in Figure 2-1, Figure 2-2, Figure 4; or although the layout can be implemented as a bearer to implement eMBMS through WIFI and LTE networks respectively.
  • the structure of the service is as shown in Figure 6-1, Figure 6-2, and Figure 7.
  • only the WIFI is used as the bearer to implement the eMBMS service.
  • the UE can implement the eMBMS service only through the WIFI bearer.
  • WIFI only scenes. Typical scenarios, such as stadiums and other user-level locations, enable eMBMS services to be deployed through WIFI coverage areas, while eMBMS services may not be provided in LTE networks.
  • the UE can receive the eMBMS service through the WIFI; even for the UE that supports the WIFI service and the LTE service, the UE can receive the eMBMS service only through the WIFI.
  • the embodiment of the present invention provides a multi-cell/multicast coordination entity (MCE), which can be applied to the broadcast system provided by the foregoing embodiment, including, as shown in FIG. 10, the MCE includes: receiving Unit 100, processing unit 101 and transmitting unit 102;
  • MCE multi-cell/multicast coordination entity
  • the receiving unit 100 is configured to receive a session message sent by the MME, where the session message carries an area identifier, and the processing unit 101 is configured to determine an AC or an AP according to the received area identifier;
  • the storage unit 103 may further include a corresponding relationship table between the service area and the AC or the AP, where the corresponding relationship table may be generated by:
  • the receiving unit 100 is configured to receive a message reported by the AC or the AP, and the processing unit 101 generates a affiliation relationship table between the AP and the AC, where the processing unit 101 is further configured to generate a correspondence between the AC and the SCTP link according to the AC identifier carried in the message, or according to the The AP identifier carried in the message generates a correspondence between the AP and the SCTP link, and the processing unit 101 generates a correspondence table between the service area and the AC or the AP according to the foregoing relationship and the corresponding relationship.
  • the sending unit 102 is configured to send a session message to the determined AC or AP.
  • the processing unit 101 is further configured to determine, when the received area identifier determines that the distribution session message has an AC or an AP, and the eNB, determine to select to distribute the eMBMS session only through the AC or the AP, or select to only distribute the eMBMS session by using the eNB.
  • the processing unit 101 may be further configured to: when the received area identifier determines that there is an AC or an AP that distributes the eMBMS session, and the eNB, and when the determined service area corresponding to the AC or the AP is the same as the service area corresponding to the determined eNB, It is determined that the eMBMS session is only distributed through the AC or AP; it is also possible to distribute the eMBMS session only through the eNB.
  • the embodiment of the present invention provides an access controller (AC), which can be applied to the broadcast system provided by the foregoing embodiment, as shown in FIG. 11, comprising: a receiving unit 200, a processing unit 201, and a sending unit 202;
  • AC access controller
  • the receiving unit 200 is configured to receive a session message sent by the MCE, where the session message carries an area identifier.
  • the processing unit 201 is configured to determine, according to the area identifier, an AP that is to receive a session;
  • the sending unit 202 is configured to distribute the session message to the determined AP.
  • the AC provided by the embodiment of the present invention may further include a storage unit 203, where the storage unit 203 stores a service area list, and the sending unit 202 is further configured to send the service area list stored by the storage unit 203 to the MCE.
  • the processing unit 201 may be further configured to establish a connection with the MBMS-GW according to the multicast address identifier carried in the session message. Specifically, the processing unit may communicate with the MBMS-GW through the M1 interface, and the receiving unit 200 receives from the MBMS-GW. Multicast package.
  • the sending unit 202 is further configured to send the multicast packet to the determined AP.
  • the embodiment of the present invention provides an access point (AP), which can be applied to the broadcast system provided in the foregoing embodiment.
  • the receiving unit 300 includes a receiving unit 300, a processing unit 301, and a broadcast unit 302.
  • the receiving unit 300 is configured to receive a session message sent by the MCE or the AC, where the session message carries a multicast address identifier.
  • the processing unit 301 is configured to establish a connection with the MBMS-GW according to the multicast address identifier. Specifically, the processing unit can communicate with the MBMS-GW through the M1 interface.
  • the receiving unit 300 is further configured to receive a multicast packet from the MBMS-GW.
  • the broadcast unit 302 is configured to broadcast the received multicast packet on a WIFI air interface.
  • the AP provided by the embodiment of the present invention may further include a storage unit 303, where the storage unit 303 stores a service area list, and the sending unit 302 is further configured to send the service area list stored by the storage unit 303 to the MCE.
  • the embodiment of the present invention provides a user equipment (UE), which can be applied to the broadcast system provided by the foregoing embodiment, and implements an eMBMS broadcast service by using the broadcast system provided in the foregoing embodiment, including, as shown in FIG. 13, receiving Unit 400, processing unit 401 and display unit 402.
  • UE user equipment
  • the UE can be any access device such as a mobile phone, a tablet, or the like.
  • the receiving unit 400 is configured to receive channel information broadcast by the AP;
  • the processing unit 401 is configured to parse the received channel information.
  • the display unit 402 is configured to display the parsed channel information.
  • the receiving unit 400 is further configured to receive the multicast packet sent by the AP on the parsed channel;
  • the processing unit 401 is further configured to parse the multicast packet.
  • the display unit 402 is further configured to display channel content presented by the multicast package.
  • the embodiment of the present invention provides a multi-cell/multicast coordination entity (MCE), which can be applied to the broadcast system provided in the foregoing embodiment, including, as shown in FIG. 14, the communication interface 501, Processor 502 and memory 503;
  • MCE multi-cell/multicast coordination entity
  • the communication interface 501 is configured to receive a session message sent by the MME, where the session message carries an area identifier.
  • the processor 502 is configured to determine an AC or an AP according to the received area identifier
  • the memory 503 further includes a corresponding relationship table between the service area and the AC or the AP, where the corresponding relationship table can be generated by:
  • the communication interface 501 receives the message reported by the AC or the AP, and the processor 502 generates a affiliation relationship table between the AP and the AC.
  • the processor 502 is further configured to generate a correspondence between the AC and the SCTP link according to the AC identifier carried in the message, or according to the message.
  • the AP identifier carried in the AP generates an association between the AP and the SCTP link, and the processor 502 generates a correspondence table between the service area and the AC or the AP according to the foregoing affiliation relationship and the corresponding relationship.
  • the communication interface 501 Through the communication interface 501, it is used to send a session message to the determined AC or AP.
  • the processor 502 is further configured to determine, when the received area identifier determines that the distribution session message has an AC or an AP, and the eNB, determine to select to distribute the eMBMS session only through the AC or the AP, or select to only distribute the eMBMS session by using the eNB.
  • the processor 502 is further configured to: when the received area identifier determines that there is an AC or an AP that distributes the eMBMS session, and the eNB, and when the determined service area corresponding to the AC or the AP is the same as the service area corresponding to the determined eNB, Make sure to choose to distribute only through AC or AP eMBMS session; it is also possible to distribute the eMBMS session only through the eNB.
  • the embodiment of the present invention provides an access controller (AC), which can be applied to the broadcast system provided by the foregoing embodiment, including, as shown in FIG. 15, a communication interface 601, a processor 602, and a memory 603;
  • AC access controller
  • the communication interface 601 is configured to receive a session message sent by the MCE, where the session message carries an area identifier.
  • the processor 602 is configured to determine, according to the area identifier, an AP that is to receive a session;
  • a session message is distributed to the determined AP through the communication interface 601.
  • the AC provided by the embodiment of the present invention may further include a memory 603, where the memory 603 stores a service area list, and the service area list stored in the memory 603 is sent to the MCE through the communication interface 601.
  • the processor 602 is further configured to establish a connection with the MBMS-GW according to the multicast address identifier carried in the session message. Specifically, the processor 602 can communicate with the MBMS-GW through the M1 interface, and from the MBMS-GW through the M1 interface. Receive multicast packets.
  • the communication interface 601 can also be used to send the multicast packet to the determined AP.
  • An embodiment of the present invention provides an access point (AP), which can be applied to the broadcast system provided in the foregoing embodiment, including, as shown in FIG. 16, a communication interface 701, a processor 702, a memory 703, and a broadcast. Port 704;
  • AP access point
  • the communication interface 701 is configured to receive a session message sent by the MCE or the AC, where the session message carries a multicast address identifier.
  • the processor 702 is configured to establish a connection with the MBMS-GW according to the multicast address identifier. Specifically, the processor 702 can communicate with the MBMS-GW through the M1 interface.
  • a multicast packet can also be received from the MBMS-GW;
  • the broadcast button 704 is configured to broadcast the received multicast packet on the WIFI air interface.
  • the AP provided by the embodiment of the present invention may further include a memory 703, where the memory 703 is stored.
  • the service area list can also send the service area list stored in the memory 703 to the MCE through the communication interface 701.
  • the embodiment of the present invention provides a user equipment (UE), which can be applied to the broadcast system provided by the foregoing embodiment, and implements an eMBMS broadcast service by using the broadcast system provided in the foregoing embodiment, including, as shown in FIG. 801, processor 802, display 803.
  • UE user equipment
  • the UE can be any access device such as a mobile phone, a tablet, or the like.
  • the receiver 801 is configured to receive channel information broadcast by the AP.
  • the processor 802 is configured to parse the channel information received from the AP.
  • the receiver 801 is further configured to receive a multicast packet sent by the AP.
  • the processor 802 is further configured to parse the multicast packet,
  • the display 804 is configured to display according to the multi-cast packet parsed by the processor, so that the user can watch the channel content through the display.
  • the device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical. Units can be located in one place or distributed to multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • the connection relationship between the modules indicates that there is a communication connection between them, and specifically, one or more communication buses or signal lines can be realized.
  • the present invention can be implemented by means of software plus necessary general hardware, and of course,
  • the hardware includes integrated circuits, CPUs, memories, components, and the like.
  • functions performed by a computer program can be easily implemented with the corresponding hardware, and the specific hardware structure used to implement the same function can also be various, such as analog circuits, digital circuits, or circuits. Wait.
  • software program implementation is a better implementation in more cases.
  • the technical solution of the present invention which is essential or contributes to the prior art, can be embodied in the form of a software product stored in a readable storage medium, such as a floppy disk of a computer.
  • U disk mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc., including a number of instructions to make a computer device (may be A personal computer, server, or network device, etc.) performs the methods described in various embodiments of the present invention.
  • a computer device may be A personal computer, server, or network device, etc.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Business, Economics & Management (AREA)
  • General Business, Economics & Management (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Un mode de réalisation de la présente invention concerne un système de service de diffusion/multidiffusion multimédia, comprenant une passerelle de service de diffusion multimédia (MBMS-GW), une entité de coordination de multidiffusion à multiples cellules (MCE) et un point d'accès (AP). Une MCE reçoit, d'une MME, un message de session contenant un identifiant de zone, et selon l'identifiant de zone, elle détermine un AC qui doit recevoir le message de session et transmet le message de session à l'AC, l'AC détermine l'AP qui doit recevoir le message de session et transmet le message de session à l'AP, l'AP établit une connexion avec la MBMS-GW selon le message de session reçu, et reçoit un paquet de multidiffusion de la MBMS-GW, le paquet de multidiffusion est diffusé au niveau d'une interface radio après l'analyse par l'AP. Le mode de réalisation de la présente invention permet à un dispositif utilisateur de réaliser le service eMBMS par la WiFi, maintenant ainsi la continuité du service eMBMS.
PCT/CN2014/093164 2014-12-05 2014-12-05 Procédé, dispositif et système de diffusion/multidiffusion multimédia Ceased WO2016086419A1 (fr)

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