WO2012126395A1 - Procédé et dispositif pour une transmission de service - Google Patents

Procédé et dispositif pour une transmission de service Download PDF

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Publication number
WO2012126395A1
WO2012126395A1 PCT/CN2012/072947 CN2012072947W WO2012126395A1 WO 2012126395 A1 WO2012126395 A1 WO 2012126395A1 CN 2012072947 W CN2012072947 W CN 2012072947W WO 2012126395 A1 WO2012126395 A1 WO 2012126395A1
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WO
WIPO (PCT)
Prior art keywords
user
service
group
same
transmission
Prior art date
Application number
PCT/CN2012/072947
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English (en)
Chinese (zh)
Inventor
邱勇
邓永锋
于江
Original Assignee
华为技术有限公司
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.)
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Publication of WO2012126395A1 publication Critical patent/WO2012126395A1/fr

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Classifications

    • 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
    • H04W4/08—User group management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/61—Network physical structure; Signal processing
    • H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
    • H04N21/6131—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving transmission via a mobile phone network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/643—Communication protocols
    • H04N21/64322—IP
    • 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
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/80—Responding to QoS
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/121—Wireless traffic scheduling for groups of terminals or users

Definitions

  • the present invention relates to the field of wireless communication technologies, and in particular, to a method and an apparatus for service transmission.
  • Web browsing-based video services deliver video services over standard HTTP (HyperText Transfer Protocol) servers, such as YouTube (which is an Internet site that provides users with services such as watching and sharing video clips), BELL HLS ( BELL HTTP Live Streamin, Bell HTTP Live Streaming) Live live video.
  • HTTP HyperText Transfer Protocol
  • YouTube which is an Internet site that provides users with services such as watching and sharing video clips
  • BELL HLS BELL HTTP Live Streamin, Bell HTTP Live Streaming
  • a dedicated TCP (Transmission Control Protocol) connection is established between the client and the server; the client sends an HTTP request message to the server through a dedicated TCP connection, requesting the server to transmit the video file;
  • the dedicated TCP connection sends an HTTP response message, and the video data is transmitted to the client, that is, each user separately establishes a bearer for file transmission.
  • the real-time video service based on the dedicated server is a real-time video broadcast through a dedicated server such as RTP (Real Time Transport Protocol), RTMP (Rea Time Messaging Protocol), etc.
  • the video server always obtains the latest video clips, encodes the appropriate media format, and finally assembles into different transport layer data packets, and sends them to the client, that is, the network allocates independent transmission resources for each live video user, and establishes a dedicated bearer.
  • the network allocates an independent transmission resource for each service request. For terminals in the same cell, this allocation Ways have formed a huge waste of air interface resources ⁇
  • Embodiments of the present invention provide a method and apparatus for service transmission to improve utilization of air resources in a wireless service transmission process.
  • a wireless access network element including:
  • a setting unit configured to set a user performing the same service in the same user group
  • a first allocation unit configured to allocate, by the setting unit, a user group included in the user group, the same group transmission resource, where the same group transmission resource includes at least a group transmission channel resource;
  • a transmitting unit configured to broadcast a service to the user by using a group transmission resource allocated by the first allocation unit.
  • a method for service transmission in which users who perform the same service are set in the same user group, and the method further includes:
  • the radio access network element allocates the same group transmission resource to the user included in the one user group, and the same group transmission resource includes at least a group transmission channel resource;
  • the radio access network element broadcasts a service to the user by using the group transmission resource.
  • the technical solution provided by the embodiment of the present invention can set users currently performing the same service in the same user group, and allocate the same group transmission resource to the users included in the one user group, and use the group transmission resource. Broadcasting services to the user, solving the problem of repeated resource allocation, and improving the utilization of air interface resources in the wireless service transmission process.
  • FIG. 1 is a general architecture diagram of service transmission in an embodiment of the present invention
  • FIG. 3 is a flow chart of a method for service transmission in another embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a configuration of a group DCPH transmission channel according to another embodiment of the present invention.
  • FIG. 6 is a flowchart of a method for service transmission in another embodiment of the present invention
  • FIG. 7 is a block diagram showing the composition of a radio access network element according to another embodiment of the present invention.
  • FIG. 8 is a structural block diagram of another radio access network element according to another embodiment of the present invention.
  • FIG. 9 is a block diagram showing the composition of another radio access network element according to another embodiment of the present invention.
  • FIG. 10 is a structural block diagram of another radio access network element according to another embodiment of the present invention.
  • FIG. 11 is a block diagram showing the composition of another radio access network element in another embodiment of the present invention.
  • FIG. 12 is a structural block diagram of another radio access network element according to another embodiment of the present invention.
  • FIG. 13 is a block diagram showing the composition of another radio access network element in another embodiment of the present invention.
  • FIG. 14 is a block diagram showing the composition of another radio access network element according to another embodiment of the present invention.
  • FIG. 15 is a block diagram showing the composition of another radio access network element according to another embodiment of the present invention.
  • a service identification module is introduced on the RAN (Radio Access Network) side to identify services performed in the same cell; or, triggered by the core network, the user performing the same service is set in
  • the users included in the user group are allocated the same group transmission resource, so that the users included in the user group use the same group transmission mode to perform service transmission, and the group transmission mode is multiple.
  • the user allocates the same transport bearer and performs a shared transport.
  • the overall architecture of end-to-end service propagation based on the same transmission is shown in Figure 1.
  • the service transmission on the network side can still comply with the existing service transmission mode service, that is, the service is separately transmitted for each terminal through dedicated resources.
  • the ISP (Internet Service Provider) server can be an HLS (HTTP Live Streaming) video server or a YouTube video server; depending on the wireless system, CN (Core Network) can be of different types.
  • Service network element such as GSM (Global System for Mobi le Communicat ions) or UMTS (Serva GPRS Support Node, J! GPRS support node) Serving with GGSN (Gateway GPRS Support Node), LTE (Long Term Evoluting, 3GPP Long Term Evolution) system GW (Serving GateWay, Service Gateway) and PDN GW.
  • the service identification module PI on the RAN side performs a service identification operation on the service delivered by the ISP server.
  • the RAN network elements that perform service identification are also different, such as the BSC (Base Stat Analyzer) of the GSM system, and the RNC (Radio Network Controller) of the UMTS system. ), an eNodeB (evolved Node B, evolved base station) of the LTE system, or the like.
  • An embodiment of the present invention provides a method for service transmission. As shown in FIG. 2, the method may include:
  • the radio access network element sets the user performing the same service in the same user group.
  • the method for the radio access network element to set the user to perform the same service in the same user group may be implemented by, but not limited to, the following method, where the method includes: the radio access network element according to the service request of the user Or the service is identified according to the identification result, and the users performing the same service are set in the same user group; or the users performing the same service are set in the same user group according to the core network trigger; wherein, the core network can pass multiple
  • the mode triggering may be, for example, the radio access network element receiving the group transmission request sent by the core network, and setting the user performing the same service in the same user group according to the group transmission request, which is not used in this embodiment. Make a limit.
  • the radio access network elements are also different according to the radio system standard, such as the BSC of the GSM system, the RNC of the UMTS system, and the eNodeB of the LTE system.
  • the radio access network element allocates the same group transmission resource to a user included in the one user group.
  • the same group transmission resource may be, but not limited to, a group transmission channel resource of a transmission service. Further, when the radio access network element allocates the group of transmission resources, the radio access network element may also perform the QoS (Quality of Service) requirement for each user in the user group.
  • the users included in the user group are allocated the same group transmission resource, but the embodiment of the present invention does not limit this.
  • the radio access network element broadcasts a service to the user by using the group transmission resource.
  • the radio access network element sets the users currently performing the same service in the same user group, and allocates the same group transmission resource to the users included in the one user group, and uses the group transmission resource.
  • the user broadcast service can solve the problem of repeated resource allocation, and can improve the utilization of air interface resources in the transmission process of the wireless video service.
  • Another embodiment of the present invention provides a method for service transmission. As shown in FIG. 3, the method includes: 201.
  • a radio access network element sets a user performing the same service in a same user group.
  • the method for the radio access network element to set the user to perform the same service in the same user group may be implemented by, but not limited to, the following method, where the method includes: the radio access network element according to the service request or service of the user Identifying the service performed by the current user, and setting the user performing the same service in the same user group according to the recognition result; or setting the user of the same service according to the trigger of the core network by the wireless access network element In the same user group.
  • the radio access network element sets the users performing the same service in the same user group, if there are multiple different services, multiple different user groups are obtained; When users allocate the same group transmission resources, they need to allocate different transmission resources for different user groups.
  • step 203 may be performed; According to the predetermined policy, it is determined that the group transmission mode is not activated, and the transmission resource may be allocated to the user according to an existing service transmission manner.
  • the allocation of the transmission resource to the user according to the existing service transmission manner may be: if the user has been allocated a separate transmission resource, the allocated transmission resource is used to transmit the service for the user, if not yet When the user allocates a separate transmission resource, the user is allocated a separate transmission resource, and the newly allocated transmission resource is used to transmit the service for the user.
  • the group transmission can be started.
  • the input mode, wherein the preset threshold can be set according to actual needs.
  • the number of users viewing the same video under the coverage of the wireless network element may be determined by using a DPI (Deep Packet Inspection) technology or other data packet or data flow detection technology.
  • DPI Deep Packet Inspection
  • the specific technology used to determine the number of users viewing the same video covered by the wireless network element is not limited.
  • the DPI technology is an application layer-based traffic detection and control technology, when IP data packets, TCP (Transmitation Control Protocol) or UDP (User Datagram Protocol) data streams
  • TCP Transmission Control Protocol
  • UDP User Datagram Protocol
  • the system reorganizes the application layer information in the Layer 7 protocol of the 0SI (Open System Interconnect) by deeply reading the contents of the IP packet payload, thereby obtaining the entire application.
  • the content of the program, and then the traffic is shaped according to the system-defined management policy.
  • ISP Internet Service Provider
  • the ISP server when receiving the service request sent by the user included in the user group, allocates a service to each user included in the user group and sends the service to the corresponding user.
  • the allocation mechanism causes the radio access network element to receive a plurality of services allocated by the ISP server for the user group.
  • one of the multiple services When one of the multiple services is selected as the same service of the user included in the user group, one of the multiple services may be selected as the user included in the user group.
  • Same industry The embodiment of the present invention may also be used to select the same service as the same service of the user included in the user group according to the current network status and the RRM algorithm. This is not restricted, and the user can select it according to the needs.
  • the radio access network element may detect a service execution status of the user in real time, if monitoring When a new user needs to join the user group or the user in the user group ends the service, the embodiment of the present invention further includes the following methods:
  • the new user is assigned the same group transmission resource, and the assigned group transmission resource is used to send the service to the new user. It should be noted that, due to factors such as the ability of the new user to perform services or the link quality, the group transmission channel of the user group needs to be reconfigured, and the radio access network element joins the new user to the location. After the user group is further included, determining whether to re-allocate the same group transmission resource for the user included in the user group according to the service capability or link quality of the new user;
  • the user included in the user group is reassigned the same group transmission resource, and is sent to each user included in the user group.
  • a group transmission resource reconfiguration command instructing the user to access the reassigned group transmission resource, to broadcast the service to the user by using the reconfigured same group transmission resource;
  • the group transmission resource assigned to the user that terminates the execution of the same service is revoked.
  • the group transmission resource allocated for the user group is released.
  • Transmission resource if it is determined that the user included in the user group is reassigned the same group transmission resource, it is the user
  • the user included in the group reassigns the same group transmission resource, and sends a group transmission resource reconfiguration command to each user included in the user group, indicating that the user accesses the reassigned group transmission resource, so as to utilize
  • the reconfigured same group transmission resource broadcasts traffic to the user.
  • the method may further include:
  • the non-identity service may also be allocated a dedicated transmission resource; and the non-identical service is sent to the user by using the dedicated transmission resource.
  • the dedicated transmission resource may be allocated to the non-identical service according to the QoS requirement of the non-identical transmission service, but the embodiment of the present invention does not limit this.
  • the users currently performing the same service are set in the same user group, and the users included in the user group are allocated the same group transmission resource, and the group transmission resource is used to broadcast to the user.
  • the service can solve the problem of the repeated allocation of resources, and can improve the utilization of the air interface resources in the transmission process of the wireless video service.
  • the radio access network element in the downlink direction is based on the worst link quality. Multiple users included in the user group transmit the same service, which can save more downlink power resources.
  • the radio access network element before the radio access network element allocates the same group transmission resource to the user included in the one user group, determining whether to start the group transmission mode according to a predetermined policy, when determining to start the group transmission mode, The user is allocated the same group transmission resource according to the user included in the user group, and then the service is broadcast to the user by using the group transmission resource, so that the application of the same service transmission is flexible.
  • the group of transmission resources may be assigned to the new user, and the service is sent to the new user on the group transmission channel. Therefore, the utilization of the air interface resource of the wireless service transmission is further improved, and as the number of users increases, the resource utilization rate of the group transmission mechanism increases linearly.
  • Another embodiment of the present invention provides a method for implementing the same service transmission based on a universal browser (such as IE) or a terminal embedded browser (such as a safar i browser of an i Phone terminal).
  • the browser is generally used to implement the transmission of the video stream based on the HTTP protocol, such as HTTP real-time streaming (HTTP L ve S treaming).
  • HTTP L ve S treaming HTTP real-time streaming
  • the video service is taken as an example for description.
  • the HSDPA transmission mode is taken as an example to describe a group transmission channel establishment process of a video service.
  • the RAN can identify the video service in the serving cell, and according to The predetermined policy decision initiates a group transfer mechanism to switch the users included in the user group to the same HSDPA transmission resource.
  • the method may include:
  • the RAN monitors the video service triggered by the user, sets the user who performs the same video service in the same user group, and determines whether to initiate the group transmission mode according to a predetermined policy.
  • the RAN sets the user who performs the same video service in the same user group, and can be implemented by, but not limited to, the following method.
  • the method includes: the RAN monitors a video service triggered by the user, according to the user.
  • the service request or service identifies the service performed by the current user, and sets the user who currently performs the same video service in the same user group according to the identification result; or the RAN performs the same video service according to the trigger of the core network. Users are set in the same user group.
  • the predetermined policy may include: according to the network management configuration, for example, for the popular video service, the group transmission mode may be started at the beginning, regardless of how many users are watching under the coverage of the wireless access network element, such as during the World Cup.
  • the live broadcast video service may be determined according to the number of users viewing the same video. For example, when the number of users viewing the same video reaches a preset threshold, the group transmission mode may be started, where The preset threshold can be set according to actual needs. It should be noted that, in this case, the number of users viewing the same video under the coverage of the wireless network element may be determined by using the DPI technology or other data packet or data flow detection technology.
  • the number of users who are viewing the same video is not limited; or is triggered by the core network. For a detailed description of the triggering by the core network, refer to the corresponding description in the embodiment 2, and the embodiment of the present invention will not be repeated here. .
  • the RAN determines to start the group transmission mode according to the predetermined policy, allocate, for the user included in the user group, the same group transmission resource based on the HSDPA transmission mode, where the group transmission resource includes at least a group transmission channel resource, according to the
  • the group transmission channel resource setting group configuration command is used to indicate that the user included in the user group accesses the group transmission channel resource, and sends an assignment message to the user to notify the user to access the group transmission channel resource. Transmitting the same service through the group of transmission channel resources.
  • the RAN may allocate HSDPA group transmission resources to users in the user group according to the HSDPA transmission mode and the QoS requirements of the current video service of the user in the user group, and the transmission resource may be a group H-RNTI (HS- DSCH Rad io Network Temporary Ident I ty, HS-DSCH (High-Speed Downl Ink Shared Channel) Wireless Network Temporary Identifier), HS-SCCH (High-Speed Shared) Control Channel, high-speed shared control channel) group listening channel, uplink control channel HS-PDCCH (High-Speed Dedicated Physical Control Channel), DPCH (Dedicated Physical Channel) channel, etc., for example, Specifically, it can be:
  • the RAN can schedule the same group HS-DPDCH (High-Speed Dedicated Physical) for the users included in the user group according to the QoS requirements of the current video service of the user in the user group.
  • Data Channel a high-speed dedicated physical data channel
  • the RAN may allocate the same group HS-SCCH (High-Speed Shared Control Channel) as a listening channel for all users included in the user group, for transmitting the group HS-DPDCH channel. Scheduling information. It should be noted that, if the RAN load is light, in the downlink direction, the RAN may also allocate an independent HS-SCCH to all users included in the user group as a proprietary listening channel for transmitting group HS-DPDCH channel scheduling information. ; Assign a dedicated H-RNTI for scrambling the proprietary HS-SCCH channel. When performing service transmission, the respective dedicated control channels of the users in the user group send the same scheduling information for all users included in the user group, and schedule an appropriate group HS-DPCHCH channel for the user group.
  • HS-SCCH High-Speed Shared Control Channel
  • the RAN may allocate an independent HS-DPCCH channel for each user, and transmit the unique HARQ (Hybrid Automatic Repeat Request) process receiving information and link quality information.
  • the RAN may also allocate a separate companion DPCH channel for each user to provide a transmit power reference for the HS-DPCCH channel and the HS-SCCH channel.
  • the MN can allocate the same group of transmission resources to the user group, and the RAN can also Allocating the non-identical service by allocating a dedicated transmission resource for the non-identical service.
  • the RAN When the RAN allocates dedicated transmission resources for non-identical services, it may allocate HSDPA (High-Speed Downlink Packet Access) transmission mode or DCH (Dedicated Channel) based on user capabilities. Channel) A dedicated transmission resource for the transmission mode.
  • HSDPA High-Speed Downlink Packet Access
  • DCH Dedicated Channel
  • the allocating the dedicated transmission resource based on the DCH transmission mode may include: the RAN assigns an independent dedicated DPCH channel to the user for transmitting the non-identical service according to the QoS requirement of the non-identical service. And, at this time, the RAN can provide a power reference for the HSDPA transmission of the same service through the dedicated DPCH channel, replacing the original companion DPCH. channel.
  • the allocating the dedicated transmission resource based on the HSDPA transmission mode may include: the RAN allocates the HS-SCCH as the listening channel for the non-identical service, and is used to transmit the user-specific scheduling information; and allocate the dedicated H-RNTI for the user.
  • the intercepted HS-SCCH channel is scrambled; according to the QoS requirements of the non-identical service, the RAN schedules a suitable dedicated HS-DPCHCH transmission resource for the terminal to transmit the non-identical service.
  • the non-identical service of the user may still apply the foregoing HS-DPCCH channel feedback HARQ reception information and link quality information, and apply the foregoing independent companion DPCH channel to provide a transmission power reference of the HS-DPCCH channel and the HS-SCCH channel.
  • the HS-SCCH channel may be a non-identical service and the same service scheduling proprietary HS-PDSCH transmission in a time division multiplexing manner.
  • the resource and group HS-PDSCH transmission resources are fully compatible with the existing HSDPA transmission mechanism.
  • the RNC For the HSDPA group transmission mode sharing the HS-SCCH channel and the H-RNTI identifier, the RNC needs to allocate the group H-RNTI and the dedicated H to the terminal at the same time. - RNTI. In this scenario, the HSDPA receiving capability of the terminal needs to be extended.
  • the user After receiving the assignment message, the user accesses the group transmission channel, and returns a response to the RAN.
  • the user included in the user group sends an HTTP GET request to the corresponding ISP server to request the latest. Playlist file or ts video file.
  • Each HTTP RESPONSE message carries a playlist file or a ts file requested by the user.
  • the RAN selects, as the HTTP RESPONSE message of the group, one of the multiple HTTP RESPONSE messages sent by the receiving ISP server, that is, the same video service of the user included in the user group.
  • the RAN may also select an HTTP RESPONSE message as the HTTP RESPONSE message of the group according to the current network status and its own RRM algorithm. No restrictions are imposed. 307.
  • the RAN broadcasts the selected HTTP RESPONSE message by using a group transport channel resource, where the HTTP RESPONSE message carries a latest playlist file or a ts video file.
  • the RAN when the RAN allocates the same group of transmission resources to the user included in the user group, the RAN may also be performed according to the DCH transmission mode, and the RAN is a user group different from the HSDPA-based transmission mode.
  • the included user allocates the same group transmission resource to the DPCH code channel or the like, and transmits the selected HTTP RESPONSE message on the group DPCH code channel that the user group listens when transmitting the video resource on the group transmission channel.
  • the RAN allocates a group to the user group in the user group according to the DCH transmission mode, which may be:
  • the same group DPCH code channel is used to transmit the same video data.
  • the RAN allocates the same group DPCH code channel to the users included in the user group, and transmits the same video data.
  • the RAN allocates a dedicated DPCCH channel independently for each user, and transmits control information such as pilot-specific pilot (PILOT), TFCI (Transport Format Combination Indicator), and power control commands. Specifically, as shown in FIG.
  • a specific configuration of a group DPCH transmission channel in the downlink direction is given: where the same group DPCH code channel of the user group only contains the data part DPDCH channel of the DPCH channel; the user-specific DPCH code channel , only the control part DPCCH channel of the DPCH channel is transmitted.
  • the RAN allocates the same group of transmission resources to the users included in the user group.
  • the RAN also needs to allocate the dedicated transmission resource for the non-identical service to transmit the non-identical service.
  • the dedicated transmission resource based on the HSDPA transmission mode or the DCH transmission mode may be allocated according to the user capability.
  • the allocation of the dedicated transmission resource based on the DCH transmission mode includes: the RAN further, according to the QoS requirement of the non-identical service, assigning an independent dedicated DPCH code channel to the non-identical service, for transmitting the non-identical service.
  • the data of the same CCTrCH Coded Composite Transport Channe 1, Coding and Synchronization Transport Channel
  • the group transmission mechanism of the service concurrent scenario requires that the terminal user can support the service of the two CCCHCH channels of the DCH type at the same time.
  • the RAN allocates two types of DCH channels to the application terminal: a dedicated DCH channel and a group DCH channel, which is used to transmit UE-specific services; and a group DCH channel is used to transmit the same video.
  • Each type of DCH channel is mapped to a different CCTrCH channel and a DPCH code channel, respectively.
  • the same group DPCH code channel of the user group only contains the data part DPDCH channel of the DPCH channel; the data part of the DPCH code channel corresponding to the non-same service channel transmits the corresponding non-identical service, and the control part of the proprietary DPCH code channel DPCCH
  • the channel transmits control information such as terminal-specific pilots PIL0T, TFCI, and power control commands.
  • the common channel transmission mode allocates the same group of transmission resources to the users included in the user group. Unlike the HSDPA-based transmission mode, the RAN allocates the same group of transmission resources to the users included in the user group. -CCPCH (Secondary Common Control Phy Channel), etc., and when transmitting video resources on the group transmission channel, the selected HTTP RESPONSE message is transmitted on the group S-CCPCH channel that the user group listens.
  • the RAN allocates a FACH channel group transmission resource to a user included in the user group based on the FACH common channel transmission mode, which may be:
  • the RAN Based on the FACH common channel transmission mode, the RAN selects an appropriate S-CCPCH channel according to the QoS requirements of the user included in the user group to perform video services.
  • the selected S-CCPCH channel can be set to be mixed with non-same video services, or an independent S-CCPCH group transmission channel can be set.
  • the user's uplink data packet such as an HLS GET (HTTP Live Stream Acquisition) request, is sent on the corresponding RACH (Random Access Channel) channel.
  • the PT-M RB INFORMATION similar to the MBMS (Multimedia Broadcast Multicast Service) service can be used in the downlink direction.
  • the configuration mode; the original CELL-FACH state resource configuration mode is still used in the uplink direction.
  • the user who currently performs the same video service can be set in the same user group, and the QoS requirements of the same video service performed by the user included in the user group are included in the user group.
  • the user allocates the same group transmission resource, and according to the group configuration command corresponding to the allocated group transmission channel resource, the user is instructed to access the group transmission channel resource, and the user included in the user group is used by the group transmission channel.
  • the same video service can be broadcasted, and the problem of the repeated allocation of the resources can be solved, and the utilization of the air interface resources in the transmission process of the wireless video service can be improved.
  • the radio access network element in the downlink direction is based on the worst link quality. Transmitting the same video data for multiple users included in the user group can save more downlink power resources.
  • Another embodiment of the present invention provides a method for implementing service transmission using third party software.
  • Third-party software is usually used to implement real-time video stream transmission based on RTP (Rea l-time Transpor t Protoco l) protocol, such as mobile video services.
  • the client first sends a service establishment request data packet in the format of the RTSP (Rea l Time S t reaming Protoco l), requesting to establish an RTP video stream, where the request data packet includes the identifier of the streaming media requested by the client; After receiving the request packet, the solution is parsed, and if the parsing is successful, the related information of the streaming media file, such as the actual address, is returned.
  • the client sends an RTSP play request to the server according to the actual address of the received streaming media, and requests the server to play the RTP video stream for transmitting the RTP real-time video service.
  • the RAN sets a user who performs the same video service in the same user group, and determines whether to start the group transmission mode according to a predetermined policy.
  • the RAN sets the user who performs the same video service in the same user group, and can be implemented by, but not limited to, the following method.
  • the method includes: the RAN monitors a video service triggered by the user, according to the user.
  • the service request or service identifies the service performed by the current user, and sets the user currently performing the same video service in the same user group according to the identification result; or the RAN performs the same video service according to the trigger of the core network. Users are set in the same user group.
  • the predetermined policy may include: according to the network management configuration, for example, for the popular video service, the group transmission mode may be started at the beginning, regardless of how many users are under the coverage of the wireless access network element, such as during the World Cup.
  • the live broadcast video service may be determined according to the number of users viewing the same video. For example, when the number of users viewing the same video reaches a preset threshold, the group transmission mode may be started, where The preset threshold can be set according to actual needs. It should be noted that, in this case, the number of users viewing the same video under the coverage of the wireless network element may be determined by using the DPI technology or other data packet or data flow detection technology. The number of users who are viewing the same video is not limited. Alternatively, it is triggered by the core network. For a detailed description of the triggering by the core network, refer to the corresponding description in Embodiment 2, and the embodiment of the present invention will no longer be used here. Narration.
  • the RAN determines to start the group transmission mode according to the predetermined policy, allocate the same group transmission resource to the user included in the user group, where the group transmission resource includes at least a group transmission channel resource, according to the group transmission channel resource.
  • Setting a group configuration command indicating that the user included in the user group accesses the group transport channel resource, and sending an assignment message to the user to notify the user to access the group transport channel resource, by using the group Transport channel resources for the same service transmission.
  • the RAN is allocated to the user group of the user group, and the corresponding description in the step 302 in the embodiment 3 is omitted.
  • the user After receiving the assignment message, the user accesses the group transmission channel, and returns a response to the RAN.
  • the video transmission on the network side still complies with the existing video service transmission process, and the video server separately sends the RTP video stream to the users in the group.
  • the RAN selects, from the RTP video stream that is sent by the ISP server for each user included in the user group, the same video stream that is the user included in the user group.
  • one of the plurality of RTP video streams When one of the plurality of RTP video streams is selected as the same video service of the user included in the user group, one of the plurality of RTP video streams may be selected as the service.
  • the user The group includes the same video service of the user, and may also select one of the RTP video streams as the same video service of the user included in the user group according to the current network status and the RRM algorithm.
  • the embodiment of the present invention is not limited to the specific implementation, and the user can select the specific selection according to the requirement.
  • the RAN broadcasts the selected RTP video stream by using a group transmission channel resource.
  • the users who currently perform the same video service are set in the same user group, and the users included in the user group are allocated the same group transmission resource, according to the allocated group transmission channel resource setting.
  • the corresponding group configuration command instructs the user to access the group transmission channel, and broadcasts the same video service to the user included in the user group by using the group transmission channel resource, which can solve the problem of repeated resource allocation and improve the wireless video.
  • the air interface resource utilization rate in the service transmission process; and in the embodiment of the present invention, the radio access network element in the downlink direction transmits the same video data for multiple users included in the user group based on the worst link quality, Save more downlink power resources.
  • the radio access network element before the radio access network element allocates the same group transmission resource to the user included in the one user group, determining whether to start the group transmission mode according to a predetermined policy, when determining to start the group transmission mode, The users of the user group are allocated the same group transmission resource, and then the group transmission resource is used to broadcast the service to the user, so that the application of the same service is flexible.
  • the radio access network element includes: a setting unit 51, a first allocating unit 52, and a transmitting unit 53.
  • the setting unit 51 is configured to set users who perform the same video service in the same user group.
  • the first allocating unit 52 is configured to allocate the same group transmission resource to the users included in one user group set by the setting unit 51.
  • the same group transmission resource may be, but not limited to, a channel resource for transmitting a service.
  • the first allocation unit 52 allocates the same group transmission resource to the user included in the one user group, it may be included in the user group according to the QoS requirement of the same service performed by the user included in the user group.
  • the user allocates the same group transmission resource, but the embodiment of the present invention does not limit this.
  • the transmitting unit 53 is configured to broadcast a service to the user by using the group transmission resource allocated by the first allocating unit 52. Further, as shown in FIG. 8, the setting unit 51 includes: an identification subunit 511 and a first setting subunit 512.
  • the identifying subunit 511 is configured to identify a service performed by the user according to a service request or a service of the user.
  • the first setting subunit 512 is configured to set the users that perform the same service identified by the identifying subunit 511 in the same user group.
  • the setting unit 51 includes: a second setting subunit 513.
  • the radio access network element further includes: a determining unit 54.
  • a determining unit 54 configured to determine, according to a predetermined policy, a startup group transmission mode, where the first allocation unit 52 allocates the same group transmission resource to a user included in the one user group, where the group transmission mode is multiple The transmission mode in which the user allocates the same transmission resource.
  • the predetermined policy may include: according to the network management configuration, for example, for the popular video service, the group transmission mode may be started at the beginning, regardless of how many users are watching under the coverage of the wireless access network element, such as during the World Cup.
  • the live broadcast video service may be determined according to the number of users viewing the same video. For example, when the number of users viewing the same video reaches a preset threshold, the group transmission mode may be started, where The preset threshold can be set according to actual needs.
  • the radio access network element When the radio access network element transmits the service according to the transmission mode of the high speed downlink packet access HSDPA, scheduling the same high speed dedicated physical data channel HS-DPDCH for the user included in the user group in the downlink direction;
  • the radio access network element transmits the service based on the dedicated channel DCH transmission mode the user included in the user group is allocated the same dedicated physical channel DPCH code channel, and each user included in the user group is independently allocated.
  • Dedicated physical control channel DPCCH or, When the radio access network element transmits a service based on the forward access channel FACH transmission mode, the user included in the user group is assigned the same group secondary common control physical channel S-CCPCH.
  • the first allocating unit 52 is further configured to: when the radio access network element transmits the service according to the transmission mode of the high speed downlink packet access HSDPA, allocate the same group high speed to the users included in the user group in the downlink direction.
  • Shared Control Channel HS_SCCH High Speed Downlink Shared Channel Radio Network Temporary Identity H-RNTI.
  • the first allocating unit 52 can also be used to allocate a separate HS-SCCH to all users included in the user group as a proprietary listening channel.
  • Transport group HS-DPDCH channel scheduling information allocate dedicated H-RNTI for scrambling the proprietary HS-SCCH channel.
  • the user-specific control channels in the user group send the same scheduling information for all users included in the user group, and adjust the appropriate group HS-DPCHCH channel for the user group.
  • the transmission unit 53 includes a selection subunit 531 and a transmission subunit 532.
  • the selecting sub-unit 531 is configured to select one of the plurality of services to be the same service of the user included in the user group when receiving the multiple services allocated by the ISP server for the user group.
  • the transmitting subunit 532 is configured to broadcast, by using the group transmission resource, the same service selected by the selecting subunit 532 to the user.
  • the transmission unit 53 further includes: an access subunit 533.
  • the access sub-unit 533 is configured to set, according to the allocated group transport channel resource, a group configuration command, to indicate that the user included in the user group is connected to the group transport channel resource;
  • the transmission subunit 532 is configured to broadcast a service to the user by using the group transmission channel resource.
  • the transmission unit 53 further includes: a sending subunit 534.
  • a sending subunit 534 configured to: after the access subunit 533 sets a group configuration command corresponding to the allocated group transport channel resource, to indicate that the user included in the user group is connected to the group transport channel resource Sending an assignment message to the user included in the user group to notify the user to perform the group transmission resource channel The transmission of the same service.
  • the radio access network element further includes: a first operation unit 55, a second operation unit 56, a third operation unit 57, and a fourth operation unit 58.
  • a first operating unit 55 configured to: when the transmitting unit 53 broadcasts a service to the user by using the group transmission resource, when it is detected that a service performed by a new user is the same as a service performed by the user group, The new user joins the user group, assigns the same group transmission resource to the new user, and sends a service to the new user by assigning the same group transmission resource.
  • the first operating unit 55 is further configured to determine, according to the service capability or the link quality of the new user, whether the user group is the user group after adding the new user to the user group.
  • the included users reassign the same group transmission resources;
  • the user included in the user group is reassigned the same group transmission resource, and is sent to each user included in the user group.
  • a group transmission resource reconfiguration command instructing the user to access the reassigned group transmission resource to broadcast a service to the user using the reconfigured same group transmission resource;
  • a second operating unit 56 configured to: when the transmitting unit 53 broadcasts a service to the user by using the group transmission resource, when detecting that the user included in the user group terminates performing the same service of the user group At the time, the group transmission resource assigned to the user who terminates the execution of the same service is revoked.
  • a third operating unit 57 configured to: when the transmitting unit 53 broadcasts a service to the user by using the group transmission resource, when it is detected that all users included in the user group terminate execution of the same service And releasing the group transmission resource allocated by the user group.
  • a fourth operating unit configured to: when the transmitting unit 53 broadcasts a service to the user by using the group transmission resource, when detecting that the service capability or link quality of any user included in the user group occurs And determining, according to the changed service capability or link quality, whether to re-allocate the same group transmission resource for the user included in the user group; if it is determined that the user included in the user group is re-allocated the same group transmission resource Reassigning the same group transmission resource to the users included in the user group, and using each of the user groups included in the user group The user sends a group transmission resource reconfiguration command to instruct the user to access the reassigned group transmission resource to broadcast the service to the user by using the reconfigured same group transmission resource.
  • the radio access network element further includes: a second allocating unit 59 and a second sending unit 510.
  • the second allocating unit 59 is configured to allocate a dedicated transmission resource for the non-identical service when any user included in the user group has a non-identical service in addition to the same service.
  • the second allocating unit 59 may allocate a dedicated transmission resource for the non-identical service according to the service quality requirement of the non-identical transmission service when allocating the dedicated transmission resource for the non-identical service, but the implementation of the present invention is implemented. This example does not limit this.
  • the second allocation unit 59 allocates dedicated transmission resources for the non-identical services, including:
  • an independent dedicated DPCH code channel is allocated to the non-identical service
  • the radio access network element transmits the service based on the HSDPA transmission mode and allocates the dedicated transmission resource based on the HSDPA transmission mode
  • the HS-SCCH and the dedicated H-MTI are independently allocated for the non-identical service.
  • the radio access network element transmits the service according to the DCH transmission mode, and performs dedicated transmission resource allocation based on the DCH transmission mode, allocate a dedicated DPCH code channel for the non-identical service;
  • the radio access network element transmits the service based on the transmission mode of the DCH, and performs dedicated transmission resource allocation based on the HSDPA transmission mode
  • the HS-SCCH, the dedicated HS-DPCCH, and the dedicated are independently allocated for the non-identical service.
  • the H-RNTI, the dedicated HS-DPCHCH is scheduled for the non-identical service
  • the transmit power reference of the HS-DPCCH and the HS-SCCH is provided by using a dedicated physical control channel DPCCH independently allocated by each user included in the user group.
  • the second sending unit 510 is configured to transmit the non-identical service to the user by using a dedicated transmission resource allocated by the second allocation unit 59.
  • the corresponding description of the function subunits included in the radio access network element may be referred to the corresponding description in the foregoing method embodiments, and details are not described herein again.
  • users who perform the same video are set in the same user group, and are the user group.
  • the included user allocates the same group transmission resource, and after the user included in the user group is switched to the group transmission channel, the user can broadcast the video stream to the user included in the user group through the group transmission channel, which can be solved.
  • the radio access network element in the downlink direction is included in the user group based on the worst link quality based on the problem of the repeated allocation of the resources. Multiple users transmitting the same video data can save more downlink power resources.
  • the radio access network element before the radio access network element allocates the same group transmission resource to the user included in the one user group, determining whether to start the group transmission mode according to a predetermined policy, when determining the startup group transmission mode At the same time, the users included in the user group are allocated the same group transmission resource, and then the group transmission resource is used to broadcast the service to the user, so that the application of the same service transmission is flexible.
  • the group of transmission resources may be allocated to the new user, and the video is sent to the new user on the group transmission channel.
  • the flow further improves the utilization of air interface resources in the wireless service transmission process, and as the number of users increases, the resource utilization rate of the group transmission mechanism increases linearly.
  • the technical solution can be widely applied to various types of wireless networks, such as UMTS, GSM, LTE, TD-SCDMA (Time Divi s ion-Synchronous Code Divi s ion Mul t iple Access, time division synchronization code division Multiple access technology), WIMAX (Wor ldwide Interoperabi ty for Microwave Access, global microwave access).
  • UMTS Universal Mobile Telecommunications
  • GSM Global System for Mobile communications
  • LTE Long Term Evolution
  • TD-SCDMA Time Divi s ion-Synchronous Code Divi s ion Mul t iple Access, time division synchronization code division Multiple access technology
  • WIMAX Wide Interoperabi ty for Microwave Access
  • the GSM system allocates the same time slot resource to the user
  • the TD-SCDMA system allocates the same channel code & time slot resource to the user
  • LTE system allocates different subcarriers to the user.
  • the method for service transmission described in the embodiment of the present invention can be applied to a process of playing a video based on a universal browser (such as IE), or can be applied to a process of playing a video based on a terminal embedded browser (such as safar of an iPhone terminal).
  • the i browser can also be applied to the process of playing video based on the third-party software, but the embodiment of the present invention does not limit this, and the method for playing the video can also be implemented by the method of the present invention.
  • the problem of redundant allocation of resources is solved, and the utilization of air interface resources in the transmission process of the wireless video service is improved.
  • the present invention can be implemented by means of software plus necessary general hardware, and of course, by hardware, but in many cases, the former is better.
  • Implementation Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a readable storage medium, such as a floppy disk of a computer.
  • a hard disk or optical disk or the like includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present invention.

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

Abstract

L'invention concerne un procédé et un dispositif pour la transmission de service, relatifs au domaine des communications, qui résolvent le problème de l'attribution répétée de ressources et améliorent le taux d'utilisation des ressources d'interface radio pendant une transmission de service vidéo sans fil. Le procédé selon l'invention comprend les étapes suivantes : un élément de réseau d'accès radio définit les utilisateurs exécutant le même service dans le même groupe d'utilisateurs, et attribue les mêmes ressources de transmission de groupe aux utilisateurs contenus dans le même groupe d'utilisateurs, les mêmes ressources de transmission de groupe comprenant au moins des ressources de canal de transmission de groupe ; et l'élément de réseau d'accès radio utilise les ressources de transmission de groupe pour diffuser des services aux utilisateurs. Les modes de réalisation de l'invention sont principalement utilisés dans le processus de la transmission de service.
PCT/CN2012/072947 2011-03-23 2012-03-23 Procédé et dispositif pour une transmission de service WO2012126395A1 (fr)

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CN102573078B (zh) * 2012-01-06 2014-12-03 华为终端有限公司 Tcp数据包的处理方法和设备
EP2819358B1 (fr) * 2012-06-06 2016-11-02 Huawei Technologies Co., Ltd. Procédé, dispositif et système d'accès multiple
CN104994592B (zh) * 2012-06-06 2016-09-07 华为技术有限公司 多址接入方法、装置及系统
CN103561291A (zh) * 2013-10-31 2014-02-05 腾讯科技（武汉）有限公司 视频通道分配管理方法和相关设备及通信系统
CN107483981B (zh) * 2017-08-29 2019-11-05 武汉斗鱼网络科技有限公司 直播资源计算监测分配方法、存储介质、电子设备及系统
CN107592304B (zh) * 2017-08-29 2019-12-10 武汉斗鱼网络科技有限公司 直播资源计算分配方法、存储介质、电子设备及系统
CN109600759B (zh) * 2017-09-30 2022-04-29 华为技术有限公司 一种策略确定的方法及通信装置
CN114125723B (zh) * 2020-08-27 2023-05-09 中国移动通信有限公司研究院 广播多播业务的实现方法、终端及网络侧设备

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