WO2015109492A1 - 移动终端、第一基站及流媒体分段获取方法 - Google Patents

移动终端、第一基站及流媒体分段获取方法 Download PDF

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Publication number
WO2015109492A1
WO2015109492A1 PCT/CN2014/071253 CN2014071253W WO2015109492A1 WO 2015109492 A1 WO2015109492 A1 WO 2015109492A1 CN 2014071253 W CN2014071253 W CN 2014071253W WO 2015109492 A1 WO2015109492 A1 WO 2015109492A1
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WO
WIPO (PCT)
Prior art keywords
mobile terminal
base station
transmission capability
streaming media
capability information
Prior art date
Application number
PCT/CN2014/071253
Other languages
English (en)
French (fr)
Inventor
吴俊峰
王瑜
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.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2014/071253 priority Critical patent/WO2015109492A1/zh
Priority to CN201480000032.XA priority patent/CN105027530B/zh
Publication of WO2015109492A1 publication Critical patent/WO2015109492A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/2866Architectures; Arrangements
    • H04L67/30Profiles
    • H04L67/303Terminal profiles
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/60Network streaming of media packets
    • H04L65/75Media network packet handling
    • H04L65/764Media network packet handling at the destination 

Definitions

  • Mobile terminal First base station and streaming media segment acquisition method
  • the embodiments of the present invention relate to communication technologies, and in particular, to a mobile terminal, a first base station, and a streaming media segment obtaining method. Background technique
  • HTTP Hyper Text Transfer Protocol
  • DASH Dynamic Adaptive Streaming over HTTP
  • HTTP Server can compress a video file into multiple video sources with different bitrates. Each video source is cut into segments with equal time segments. These video segments can be used as separate video access units.
  • the HTTP Server writes the video source and the recommended bandwidth correspondence of different code rates into a Media Presentation Description (MPD) file, and then sends it to the DASH Client.
  • MPD Media Presentation Description
  • the DASH client can select the appropriate segment to download and play according to the currently estimated bandwidth.
  • the HTTP Server When the video service starts, the HTTP Server first sends the MPD file to the DASH client.
  • the DASH client uses the HTTP protocol GET method to apply for segment download and play to the HTTP server, and determines the next segment request according to the current segment download rate. If the actual download rate is higher than the current segment rate, the next segment requests a higher bit rate segment, otherwise the next segment requests a lower bit rate segment.
  • the DASH client firstly applies for a segment in three ways: 1. a segment that requests a minimum bit rate; 2, a segment that requests a maximum bit rate; 3, a segment that applies for a fixed configuration of the DASH client.
  • Embodiments of the present invention provide a mobile terminal, a first base station, and a method for acquiring a streaming media segment, Overcoming the inaccuracy of the initial application segment in the prior art.
  • an embodiment of the present invention provides a mobile terminal, including:
  • a sending module configured to send, to the first base station, a request for acquiring transmission capability information corresponding to the mobile terminal, after receiving the media presentation description file sent by the dynamic adaptive media server, and a receiving module, configured to receive the first base station Returning transmission capability information corresponding to the mobile terminal;
  • a processing module configured to select, in the media representation description file, a first streaming media segment that matches the transmission capability information
  • the sending module is further configured to send an application for the first streaming media segment to the dynamic adaptive media server.
  • the receiving module is specifically used to:
  • the second base station obtains the transmission capability estimation of the mobile terminal.
  • an embodiment of the present invention provides a first base station, including:
  • a receiving module configured to receive a request that is sent by the mobile terminal, after receiving the media presentation description file sent by the dynamic adaptive media server, for acquiring the transmission capability information corresponding to the mobile terminal;
  • a sending module configured to send, to the mobile terminal, transmission capability information corresponding to the mobile terminal, where the mobile terminal selects, in the media representation description file, a first streaming media segment that matches the transmission capability information And sending an application for the first streaming segment to the dynamic adaptive media server.
  • the method further includes:
  • a processing module configured to: perform transmission capability estimation on the mobile terminal to obtain the transmission capability information, where the sending module is further configured to send the transmission capability information to the mobile terminal; or the receiving module is configured to receive a second The transmitting capability information sent by the base station, correspondingly, the sending module is configured to send the transmission capability information to the mobile terminal, where the mobile terminal is to be handed over by the first base station to the second base station
  • the transmission capability information is the The second base station obtains the transmission capability estimation of the mobile terminal.
  • an embodiment of the present invention provides a mobile terminal, including:
  • a sending module configured to send the media presentation description file to the first base station after receiving the media presentation description file sent by the dynamic adaptive media server;
  • a receiving module configured to receive description information of the first streaming media segment returned by the first base station, where the first streaming media segment is a transmission capability information corresponding to the mobile terminal selected in the media presentation description file Matched streaming media segmentation;
  • the sending module is further configured to send an application for the first streaming media segment to the dynamic adaptive media server.
  • the receiving module is specifically configured to: receive description information of a first streaming media segment sent by the first base station, where the first streaming media segment is a streaming media segment selected by the first base station in the media presentation description file that matches transmission capability information corresponding to the mobile terminal; the transmission capability information is that the first base station is to the mobile station Obtained by the terminal for transmission capacity estimation;
  • the mobile terminal obtains the transmission capability estimation.
  • the embodiment of the present invention provides a first base station, including:
  • a receiving module configured to receive the media presentation description file that is sent by the mobile terminal after receiving the media presentation description file sent by the dynamic adaptive media server;
  • the first streaming media segment is a streaming media segment selected in the media presentation description file that matches the transmission capability information corresponding to the mobile terminal.
  • the sending module is configured to return, to the mobile terminal, description information of a first streaming media segment, where the first streaming media segment is by the first a streaming media segment selected by the base station in the media presentation description file that matches the transmission capability information corresponding to the mobile terminal; the transmission capability information is the first base Obtained by the station for estimating the transmission capability of the mobile terminal; or
  • the receiving module is configured to receive the description information of the first streaming media segment sent by the second base station, where the sending module is configured to send the description information of the first streaming media segment to the mobile terminal;
  • the first streaming media segment is a streaming media segment selected by the second base station in the media presentation description file to match the transmission capability information corresponding to the mobile terminal;
  • the first base station is switched to the second base station, and the transmission capability information is obtained by the second base station estimating the transmission capability of the mobile terminal, where the media representation description file is forwarded by the first base station. To the second base station.
  • an embodiment of the present invention provides a method for acquiring a streaming media segment, including: after receiving a media presentation description file sent by a dynamic adaptive media server, the mobile terminal sends, to the first base station, the mobile terminal. a request for the corresponding transmission capability information; the mobile terminal receiving the transmission capability information corresponding to the mobile terminal returned by the first base station;
  • the mobile terminal selects, in the media representation description file, a first streaming media segment that matches the transmission capability information, and sends an application for the first streaming media segment to the dynamic adaptive media server.
  • the receiving, by the mobile terminal, the transmission capability information corresponding to the mobile terminal that is returned by the first base station includes:
  • the mobile terminal Receiving, by the mobile terminal, the transmission capability information from the second base station that is forwarded by the first base station, where the mobile terminal is to be handed over by the first base station to the second base station, and the transmission capability The information is obtained by the second base station estimating the transmission capability of the mobile terminal.
  • an embodiment of the present invention provides a method for acquiring a streaming media segment, including: receiving, by a first base station, a mobile terminal, after receiving a media presentation description file sent by a dynamic adaptive media server, for acquiring the mobile terminal a request for the corresponding transmission capability information; the first base station returns corresponding transmission capability information to the mobile terminal, where the mobile terminal selects, in the media representation description file, the first time that the transmission capability information is matched Streaming media segments, and transmitting an application for the first streaming media segment to the dynamic adaptive media server.
  • the returning, by the first base station, the corresponding transmission capability information to the mobile terminal includes:
  • the first base station performs transmission capability estimation on the mobile terminal to obtain the transmission capability information, and sends the transmission capability information to the mobile terminal;
  • the transmission capability information sent by the second base station Receiving, by the first base station, the transmission capability information sent by the second base station, and sending the information to the mobile terminal, where the mobile terminal is to be switched by the first base station to the second base station, and the transmission capability is The information is obtained by the second base station estimating the transmission capability of the mobile terminal.
  • an embodiment of the present invention provides a method for acquiring a streaming media segment, including: after receiving a media presentation description file sent by a dynamic adaptive media server, the mobile terminal sends the media presentation description file to a first base station;
  • the mobile terminal sends an application for the first streaming media segment to the dynamic adaptive media server.
  • the receiving, by the mobile terminal, the description information of the first streaming media segment returned by the first base station includes:
  • the mobile terminal receives, by the first base station, description information of a first streaming media segment from the second base station, where the first streaming media segment is described by the second base station in the media representation a streaming media segment selected in the file that matches the transmission capability information corresponding to the mobile terminal; the mobile terminal is to be handed over by the first base station to the second base station, and the transmission capability information is The second base station obtains the transmission capability estimation of the mobile terminal.
  • an embodiment of the present invention provides a method for acquiring a streaming media segment, including: Receiving, by the first base station, the media presentation description file that is sent by the mobile terminal after receiving the media presentation description file sent by the dynamic adaptive media server;
  • the first streaming media segment is a streaming media segment selected in the media presentation description file that matches the transmission capability information corresponding to the mobile terminal.
  • the first base station returns, to the mobile terminal, description information of the first streaming media segment, including:
  • the first base station description information of the first streaming media segment to the mobile terminal, where the first streaming media segment is selected by the first base station in the media presentation description file, and a media segment that matches the transmission capability information of the mobile terminal; the transmission capability information is obtained by the first base station estimating the transmission capability of the mobile terminal; or the first base station receives the second base station to send Descriptive information of the first streaming media segment, and sent to the mobile terminal; wherein the first streaming media segment is selected by the second base station in the media presentation description file, and the mobile terminal Corresponding transmission capability information matching the streaming media segment; the mobile terminal is to be handed over by the first base station to the second base station, and the transmission capability information is that the second base station transmits to the mobile terminal Obtained by the capability estimation, the media presentation description file is forwarded by the first base station to the second base station.
  • a ninth aspect, the embodiment of the present invention provides a mobile terminal device, including:
  • the memory storing execution instructions, when the mobile terminal device is in operation, the processor is in communication with the memory, the processor executing the execution instruction to cause the mobile terminal device to perform The method of any of the fifth aspect or the seventh aspect.
  • the embodiment of the present invention provides a base station device, including:
  • the memory storing execution instructions, when the base station device is in operation, the processor is in communication with the memory, the processor executing the execution instruction to cause the base station device to perform, as in the sixth The method of any of the aspects or the eighth aspect.
  • the mobile terminal, the first base station, and the streaming media segment obtaining method after receiving the media presentation description file sent by the dynamic adaptive media server, the mobile terminal sends, to the first base station, a method for acquiring the corresponding corresponding to the mobile terminal.
  • the media presentation file is sent to the first base station, where the first base station selects the first streaming media segment that matches the transmission capability information corresponding to the mobile terminal to return to the first flow in the media presentation description file.
  • the description of the media segment is sent to the mobile terminal, and the mobile terminal sends an application for the first streaming media segment to the dynamic adaptive media server, where the first streaming media segment is selected according to the mobile terminal.
  • the selection of the transmission capability is matched with the current transmission capability, so the application of the first streaming media segmentation by the mobile terminal is more accurate, and the problem that the initial application of the streaming media segmentation is inaccurate in the prior art is solved.
  • Embodiment 1 is a schematic structural diagram of Embodiment 1 of a mobile terminal according to the present invention.
  • FIG. 4 is a first schematic structural diagram 1 of a first base station according to the first embodiment of the present invention.
  • Embodiment 1 of a first base station is a second schematic structural diagram of Embodiment 1 of a first base station according to the present invention.
  • Embodiment 2 of a mobile terminal according to the present invention.
  • Embodiment 9 is a schematic structural diagram of Embodiment 2 of a first base station according to the present invention.
  • FIG. 10 is a flowchart of Embodiment 1 of a method for acquiring a streaming media segment according to the present invention.
  • FIG. 11 is a flowchart of Embodiment 2 of a method for acquiring a streaming media segment according to the present invention
  • FIG. 12 is a flowchart of Embodiment 3 of a method for acquiring a streaming media segment according to the present invention.
  • Embodiment 13 is a flowchart of Embodiment 4 of a method for acquiring a streaming media segment according to the present invention
  • FIG. 14 is a schematic structural diagram of Embodiment 1 of a mobile terminal device according to the present invention
  • FIG. 15 is a schematic structural diagram of Embodiment 1 of a base station device according to the present invention. detailed description
  • FIG. 1 is a schematic structural diagram of Embodiment 1 of a mobile terminal according to the present invention.
  • FIG. 2 is a signaling flow chart 1 of Embodiment 1 of the present invention
  • FIG. 3 is a signaling flow chart 2 of Embodiment 1 of the present invention.
  • the execution entity of this embodiment is a mobile terminal that can function as a DASH Client, and the mobile terminal can be implemented by software and/or hardware.
  • the solution of this embodiment is applied in a Long Term Evolution (LTE) system.
  • the mobile terminal 10 of this embodiment may include: a sending module 101, a receiving module 102, and a processing module 103, where the sending module 101 is configured to receive a media presentation description file sent by the dynamic adaptive media server. After transmitting a request for acquiring the transmission capability information corresponding to the mobile terminal to the first base station;
  • the receiving module 102 is configured to receive the transmission capability information corresponding to the mobile terminal returned by the first base station, and the processing module 103 is configured to select, in the media representation description file, the first streaming media segment that matches the transmission capability information;
  • the sending module 101 is further configured to send an application for the first streaming segment to the dynamic adaptive media server.
  • the sending module 101 of the mobile terminal 10 as the DASH client receives the media representation description file MPD file fed back by the dynamic adaptive media server (before the MPD request can be transmitted to the dynamic adaptive media server) And transmitting, to the first base station, a request for acquiring transmission capability information corresponding to the mobile terminal.
  • the first base station receives a request for transmission capability information.
  • the uplink and downlink resources of the air interface are scheduled, and the transmission and reception of each mobile terminal are allocated by the base station through a scheduling algorithm.
  • the first base station can estimate how many resources can be scheduled for the mobile terminal according to the current load situation, the geographic location information of the mobile terminal, and the channel condition.
  • the capability of the mobile terminal is the transmission capability of the mobile terminal.
  • the first base station will estimate the transmission capability of the mobile terminal.
  • the transmission capability information is transmitted to the mobile terminal 10, and the receiving module 102 of the mobile terminal 10 receives the transmission capability information returned by the first base station, and the processing module 103 of the mobile terminal 10 selects the first streaming media segment matching the transmission capability information in the MPD file. That is, the code rate of the selected first streaming segment matches the transmission capability, the sending module 101 of the mobile terminal 10 sends an application for the first streaming segment to the dynamic adaptive media server, and the dynamic adaptive media server returns to the first streaming media. Segment to the mobile terminal.
  • the receiving module 102 is specifically configured to:
  • the first base station estimates the transmission capability of the mobile terminal, and returns the transmission capability information to the mobile terminal, and moves.
  • the receiving module 102 of the terminal 10 receives the transmission capability information. If the mobile terminal is to be handed over to the second base station by the first base station, as shown in FIG. 3, after receiving the handover request of the first base station, the second base station estimates the transmission after the mobile terminal accesses according to the current load, the channel condition, and the like.
  • the second base station sends the transmission capability information of the mobile terminal to the first base station by using a handover request response message, and the first base station may connect the transmission capability information of the mobile terminal to a Radio Resource Control (RRC) connection.
  • RRC Radio Resource Control
  • the re-distribution message is sent to the mobile terminal, and the receiving module 102 of the mobile terminal 10 receives the transmission capability information, and the following process is the same as the embodiment of FIG.
  • the mobile terminal After receiving the media presentation description file sent by the dynamic adaptive media server, the mobile terminal
  • the first base station sends a request for acquiring the transmission capability information corresponding to the mobile terminal, and the first base station returns, to the mobile terminal, the transmission capability information obtained by estimating the transmission capability of the mobile terminal, if the mobile terminal is to be first
  • the second base station performs transmission capacity estimation.
  • the mobile terminal receives the transmission capability information, and selects, in the media representation description file, the first streaming media segment that matches the transmission capability information, And sending, to the dynamic adaptive media server, an application for the first streaming media segment, where the selection of the first streaming media segment is performed according to a selection of a transmission capability corresponding to the mobile terminal, and the current transmission capability is matched, so Mobile terminal for the first stream
  • the application for media segmentation is more accurate, and solves the problem of inaccurate segmentation of the initial application for streaming media in the prior art.
  • FIG. 4 is a first schematic structural diagram of a first base station according to a first embodiment of the present invention
  • FIG. 5 is a second schematic structural view of a first base station according to the first embodiment of the present invention.
  • the execution body of this embodiment is a base station, and the base station can be implemented by software and/or hardware.
  • the solution of this embodiment is applied in an LTE system. As shown in FIG.
  • the first base station 40 of this embodiment may include: a receiving module 401 and a sending module 402, where the receiving module 401 is configured to receive, after receiving the media presentation description file sent by the dynamic adaptive media server, the mobile terminal Sending a request for acquiring the transmission capability information corresponding to the mobile terminal; the sending module 402 is configured to return, to the mobile terminal, the transmission capability information corresponding to the mobile terminal, so that the mobile terminal selects and matches the transmission capability information in the media representation description file.
  • the first streaming segment is sent and the application for the first streaming segment is sent to the dynamic adaptive media server.
  • the receiving module 401 of the first base station 40 receives, after receiving the media representation description file MPD file sent by the dynamic adaptive media server, the mobile terminal 10 sends a corresponding to the mobile terminal for acquiring the mobile terminal.
  • the request for transmission capability information In the LTE system, the uplink and downlink resources of the air interface are scheduled, and the transmission and reception of each mobile terminal are allocated by the base station through a scheduling algorithm. Then, when the mobile terminal 10 accesses the first base station and applies for the streaming media segment, the first base station can estimate how many resources can be scheduled for the mobile terminal according to the current load situation, the geographic location information of the mobile terminal, and the channel condition.
  • the capability of the mobile terminal is the transmission capability of the mobile terminal.
  • the first base station 40 transmits the transmission capability information obtained by estimating the transmission capability of the mobile terminal to the mobile terminal 10, and the mobile terminal 10 receives the transmission capability information returned by the first base station, and selects the first stream matching the transmission capability information in the MPD file.
  • Media segmentation that is, the code rate of the selected first streaming segment matches the transmission capability, and sends an application for the first streaming segment to the dynamic adaptive media server, and the dynamic adaptive media server returns the first streaming segment to the mobile terminal.
  • the first base station 40 of this embodiment may further include:
  • the processing module 403 is configured to perform transmission capability estimation on the mobile terminal to obtain transmission capability information, and the sending module 402 is further configured to send the transmission capability information to the mobile terminal; or
  • the receiving module 401 is configured to receive the transmission capability information sent by the second base station, and correspondingly, the sending module 402 is configured to send the transmission capability information to the mobile terminal, where the mobile terminal is to be handed over by the first base station to the second base station, where the transmission capability information is Obtained by the second base station for estimating the transmission capability of the mobile terminal.
  • the first base station 40 may further include a processing module 403, for the mobile terminal.
  • the transmitting capability estimates the transmission capability information
  • the sending module 402 sends the transmission capability information to the mobile terminal; or, based on the structure shown in FIG. 4, when the mobile terminal is to be handed over by the first base station to the second base station, the first The receiving module 401 of the base station 40 receives the transmission capability information sent by the second base station.
  • the sending module 402 sends the transmission capability information to the mobile terminal, and the transmission capability information is obtained by the second base station estimating the transmission capability of the mobile terminal.
  • the first base station receives a request for acquiring the transmission capability information corresponding to the mobile terminal that is sent by the mobile terminal after receiving the media presentation description file sent by the dynamic adaptive media server, and the first base station returns to the mobile terminal.
  • the mobile terminal performs the transmission capability information obtained by the transmission capability estimation. If the mobile terminal is to be handed over by the first base station to the second base station, the second base station performs transmission capability estimation and forwards the data to the first base station, otherwise
  • the base station performs estimation, the mobile terminal receives the transmission capability information, selects a first streaming media segment that matches the transmission capability information in the media presentation description file, and sends a pair to the dynamic adaptive media server.
  • the selection of the first streaming media segment is performed according to the transmission capability corresponding to the mobile terminal, and matches the current transmission capability, so the mobile terminal applies for the first streaming media segmentation.
  • FIG. 6 is a schematic structural diagram of Embodiment 2 of a mobile terminal according to the present invention
  • FIG. 7 is a signaling flowchart 1 of Embodiment 2 of the present invention
  • FIG. 8 is a signaling flowchart 2 of Embodiment 2 of the present invention.
  • the execution entity of this embodiment is a mobile terminal that can function as a DASH Client, and the mobile terminal can be implemented by software and/or hardware.
  • the solution of this embodiment is applied in an LTE system. As shown in FIG.
  • the mobile terminal 60 of this embodiment may include: a sending module 601 and a receiving module 602, where the sending module 601 is configured to: after receiving the media presentation description file sent by the dynamic adaptive media server, to the first The base station sends a media presentation description file, and the receiving module 602 is configured to receive description information of the first streaming media segment returned by the first base station, where the first streaming media segment is a transmission capability corresponding to the mobile terminal selected in the media presentation description file. The information matching the streaming media segment; the sending module 601, configured to send the application for the first streaming media segment to the dynamic adaptive media server.
  • the sending module 601 of the mobile terminal 60 as the DASH client receives the media representation description file MPD file fed back by the dynamic adaptive media server (before the MPD request can be transmitted to the dynamic adaptive media server) Sending an MPD file to the first base station.
  • the first base station receives the MPD file.
  • the uplink and downlink resources of the air interface are scheduled, and the transmission and reception of each mobile terminal are allocated by the base station through a scheduling algorithm. That When the mobile terminal 60 accesses the first base station and applies for streaming media segmentation, the first base station can estimate how many resources can be scheduled for the mobile terminal according to the current load situation, the geographical location information of the mobile terminal, and the channel conditions.
  • the capability of the mobile terminal is the transmission capability of the mobile terminal.
  • the first base station will perform transmission capability estimation on the mobile terminal to obtain transmission capability information, and select a streaming media segment matching the transmission capability information corresponding to the mobile terminal in the MPD file to be sent to the mobile terminal 60, and the receiving module 602 of the mobile terminal 60 receives The description information of the first streaming media segment returned by the first base station, the code rate of the first streaming media segment matches the transmission capability, and the sending module 601 of the mobile terminal 60 sends the description information of the first streaming media segment to the dynamic adaptive media server. Sending an application for the first streaming segment, the dynamic adaptive media server returns the first streaming segment to the mobile terminal.
  • the receiving module 602 is specifically configured to:
  • the transmission capability information is obtained by the first base station estimating the transmission capability of the mobile terminal;
  • the first base station Receiving, by the first base station, description information of the first streaming media segment from the second base station, where the first streaming media segment is a transmission capability corresponding to the mobile terminal selected by the second base station in the media presentation description file
  • the information is matched by the streaming media segment; the mobile terminal is to be handed over by the first base station to the second base station, and the transmission capability information is obtained by the second base station estimating the transmission capability of the mobile terminal.
  • the first base station estimates the transmission capability of the mobile terminal and selects a transmission corresponding to the mobile terminal in the MPD file.
  • the matched streaming media segment is returned to the mobile terminal. If the mobile terminal is to be handed over by the first base station to the second base station, as shown in FIG. 8, after receiving the handover request of the first base station, the second base station according to the current The load, the channel condition, and the like are used to estimate the transmission capability of the mobile terminal after access, and the second base station selects, in the MPD file, the first streaming media segment that matches the transmission capability corresponding to the mobile terminal, and the second base station segments the first streaming media.
  • the description information is sent to the first base station by using a handover request response message, and the first base station may send the description information of the first streaming media segment to the mobile terminal by using a Radio Resource Control (RRC) connection reconfiguration message.
  • RRC Radio Resource Control
  • the receiving module 602 of the terminal 60 receives the description information of the first streaming media segment, and the subsequent flow is similar to that of FIG. 7.
  • the mobile terminal after receiving the media presentation description file sent by the dynamic adaptive media server, the mobile terminal sends the media presentation description file to the first base station, where the first base station selects and works in the media presentation description file.
  • the first streaming media segment matching the transmission capability information corresponding to the mobile terminal returns the description information of the first streaming media segment to the mobile terminal, and the mobile terminal sends the first streaming media to the dynamic adaptive media server.
  • the selection of the first streaming media segment is based on the transmission capability corresponding to the mobile terminal, and matches the current transmission capability, so the mobile terminal applies the first streaming media segmentation more accurately, and solves the present problem.
  • the initial application for streaming media segmentation is inaccurate.
  • FIG. 9 is a schematic structural diagram of Embodiment 2 of the first base station according to the present invention.
  • the execution body of this embodiment is a base station, and the base station can be implemented by software and/or hardware.
  • the solution of this embodiment is applied in an LTE system. As shown in FIG.
  • the first base station 90 of this embodiment may include: a receiving module 901 and a sending module 902, where the receiving module 901 is configured to receive, after receiving the media presentation description file sent by the dynamic adaptive media server, the receiving terminal The sending media indicates a description file; the sending module 902 is configured to return, to the mobile terminal, description information of the first streaming media segment, for the mobile terminal to send an application for the first streaming media segment to the dynamic adaptive media server; wherein, the first flow The media segment is a streaming segment selected in the media presentation description file that matches the transmission capability information corresponding to the mobile terminal.
  • the receiving module 901 of the first base station 90 receives the MPD file sent by the mobile terminal 60 after receiving the media presentation description file MPD file sent by the dynamic adaptive media server.
  • the uplink and downlink resources of the air interface are scheduled, and the transmission and reception of each mobile terminal are allocated by the base station through a scheduling algorithm.
  • the first base station may estimate, according to the current load situation, the geographical location information of the mobile terminal, and the channel condition, how many resources can be scheduled for the mobile terminal in a period of time.
  • the capability of the mobile terminal is the transmission capability of the mobile terminal.
  • the first base station 90 will perform transmission capability estimation on the mobile terminal to obtain transmission capability information, and select a streaming media segment matching the transmission capability information corresponding to the mobile terminal in the MPD file to be sent to the mobile terminal 60, and the transmitting module of the first base station 90
  • the 902 returns the description information of the first streaming media segment to the mobile terminal 60, where the code rate of the first streaming media segment matches the transmission capability, and the first streaming media segment may be selected by the first base station 90 in the media presentation description file, and The streaming media segment corresponding to the transmission capability information of the mobile terminal.
  • the mobile terminal 60 sends an application for the first streaming media segment to the dynamic adaptive media server according to the description information of the first streaming media segment, and the dynamic adaptive media server returns the first streaming media segment to the mobile terminal.
  • the sending module 902 is configured to return, to the mobile terminal, description information of the first streaming media segment;
  • the first streaming media segment is a streaming media segment that is selected by the first base station in the media presentation description file and matches the transmission capability information corresponding to the mobile terminal; the transmission capability information is that the first base station transmits the mobile terminal to the mobile terminal. Obtained by estimate; or
  • the receiving module 901 is configured to receive description information of the first streaming media segment sent by the second base station, and correspondingly, the sending module 902 is configured to send the description information of the first streaming media segment to the mobile terminal; where, the first streaming media segmentation a streaming media segment selected by the second base station in the media presentation description file to match the transmission capability information corresponding to the mobile terminal; the mobile terminal is to be handed over by the first base station to the second base station, and the transmission capability information is the second base station Obtaining the transmission capability of the mobile terminal, the media presentation description file is forwarded by the first base station to the second base station.
  • the first base station estimates the transmission capability of the mobile terminal and selects a transmission corresponding to the mobile terminal in the MPD file.
  • the capability matching media segment is returned to the mobile terminal by the sending module 902. If the mobile terminal is to be handed over by the first base station to the second base station, as shown in FIG. 8, the second base station receives the handover request of the first base station. After that, according to the current load, the channel condition, etc., the transmission capability of the mobile terminal after the access is estimated, and the second base station selects the first streaming media segment that matches the transmission capability corresponding to the mobile terminal in the MPD file, and the second base station will be the first time.
  • the description information of the streaming media segment is sent to the first base station by using the handover request response message, and the receiving module 901 of the first base station 90 receives the description information of the first streaming media segment, and the radio resource control protocol (Radio Resource Control) is adopted by the sending module 902.
  • the RRC) connection reconfiguration message is sent to the mobile terminal.
  • the first base station receives a media presentation description file that is sent by the mobile terminal after receiving the media presentation description file sent by the dynamic adaptive media server, and if the mobile terminal is to be switched by the first base station to the second base station, The base station performs transmission capability estimation and selects, in the media presentation description file, the first streaming media segment that matches the transmission capability information, and the first base station forwards the description information of the first streaming media segment to the mobile terminal, otherwise
  • a base station performs transmission capability estimation and selects, in the media presentation description file, a first streaming media segment that matches the transmission capability information, and sends the description information to the mobile terminal, where the mobile terminal receives the description information, and
  • the dynamic adaptive media server sends an application for the first streaming media segment, and the selection of the first streaming media segment is performed according to the transmission capability corresponding to the mobile terminal, and matches the current transmission capability, so the mobile terminal is for the first time.
  • the application for streaming media segmentation is more accurate and solves the prior art Early times apply for streaming media segment is not accurate.
  • FIG. 10 is a flowchart of Embodiment 1 of a method for acquiring a streaming media segment according to the present invention, and the execution of this embodiment is performed.
  • the main body is a mobile terminal that can function as a DASH Client, and the mobile terminal can be implemented by software and/or hardware.
  • the solution of this embodiment is applied in an LTE system.
  • the method in this embodiment may include:
  • Step 1001 After receiving the media presentation description file sent by the dynamic adaptive media server, the mobile terminal sends a request for acquiring the transmission capability information corresponding to the mobile terminal to the first base station.
  • Step 1002 The mobile terminal receives the transmission capability information corresponding to the mobile terminal returned by the first base station.
  • Step 1003 The mobile terminal selects, in the media presentation description file, the first streaming media segment that matches the transmission capability information, and sends an application for the first streaming media segment to the dynamic adaptive media server.
  • the receiving, by the mobile terminal, the transmission capability information corresponding to the mobile terminal returned by the first base station includes:
  • the mobile terminal receives the transmission capability information from the second base station that is forwarded by the first base station; where the mobile terminal is to be handed over by the first base station to the second base station, and the transmission capability information is obtained by the second base station estimating the transmission capability of the mobile terminal. of.
  • the mobile terminal of the embodiment shown in FIG. 1 can be used to perform the technical solution of the embodiment.
  • the implementation principle and technical effects are similar, and details are not described herein again.
  • FIG. 11 is a flowchart of Embodiment 2 of a method for obtaining a streaming media segment according to the present invention.
  • the execution entity of this embodiment is a base station, and the base station can be implemented by software and/or hardware.
  • the solution of this embodiment is applied in an LTE system.
  • the method in this embodiment may include:
  • Step 1101 The first base station receives a request for acquiring the transmission capability information corresponding to the mobile terminal that is sent by the mobile terminal after receiving the media presentation description file sent by the dynamic adaptive media server.
  • Step 1102 The first base station returns corresponding transmission capability information to the mobile terminal, so that the mobile terminal selects the first streaming media segment that matches the transmission capability information in the media presentation description file, and sends the first to the dynamic adaptive media server.
  • Application for streaming media segmentation
  • the returning, by the first base station, the corresponding transmission capability information to the mobile terminal includes:
  • the first base station estimates the transmission capability of the mobile terminal to obtain transmission capability information, and sends the transmission capability information to the mobile terminal.
  • Mobile terminal or
  • the first base station receives the transmission capability information sent by the second base station, and sends the information to the mobile terminal, where the mobile terminal is to be handed over by the first base station to the second base station, and the transmission capability information is obtained by the second base station estimating the transmission capability of the mobile terminal. of.
  • the returning, by the first base station, the corresponding transmission capability information to the mobile terminal includes:
  • the first base station estimates the transmission capability of the mobile terminal to obtain transmission capability information, and sends the information to the mobile terminal;
  • the first base station receives the transmission capability information sent by the second base station, and sends the information to the mobile terminal, where the mobile terminal is to be handed over by the first base station to the second base station, and the transmission capability information is obtained by the second base station estimating the transmission capability of the mobile terminal. of.
  • the method of the present embodiment can be implemented by using the first base station in the embodiment shown in FIG. 4 and FIG. 5, and the implementation principle and technical effects are similar, and details are not described herein again.
  • FIG. 12 is a flowchart of Embodiment 3 of a method for acquiring a segment of a streaming media according to the present invention.
  • the executor of the embodiment is a mobile terminal that can function as a DASH client, and the mobile terminal can be implemented by software and/or hardware.
  • the solution of this embodiment is applied in an LTE system.
  • the difference between the embodiment and the embodiment shown in FIG. 10 is that the mobile terminal sends a media presentation description file to the base station, and the base station selects a flow matching the transmission capability information corresponding to the mobile terminal in the media presentation description file.
  • the media segment the mobile terminal receives the description information of the first streaming media segment, and the method in this embodiment may include: Step 1201: After receiving the media presentation description file sent by the dynamic adaptive media server, the mobile terminal sends the description file to the first base station.
  • the media indicates a description file.
  • Step 1202 The mobile terminal receives the description information of the first streaming media segment returned by the first base station, where the first streaming media segment is a streaming media segment that is selected in the media presentation description file and matches the transmission capability information corresponding to the mobile terminal. .
  • Step 1203 The mobile terminal sends an application for the first streaming media segment to the dynamic adaptive media server.
  • the receiving, by the mobile terminal, the description information of the first streaming media segment returned by the first base station includes: the mobile terminal receiving the description information of the first streaming media segment sent by the first base station, where the first streaming media segment is first a streaming media segment selected by the base station in the media presentation description file that matches the transmission capability information corresponding to the mobile terminal; the transmission capability information is obtained by the first base station estimating the transmission capability of the mobile terminal;
  • the mobile terminal receives, by the first base station, description information of the first streaming media segment from the second base station, where the first streaming media segment is selected by the second base station in the media presentation description file and corresponds to the mobile terminal.
  • the transmission capability information matches the streaming media segmentation; the mobile terminal is to be handed over by the first base station to the second base station, and the transmission capability information is obtained by the second base station estimating the transmission capability of the mobile terminal.
  • the method of the embodiment may be implemented by using the mobile terminal of the embodiment shown in FIG. 6 , and the implementation principle and the technical effect are similar, and details are not described herein again.
  • FIG. 13 is a flowchart of Embodiment 4 of a method for acquiring a streaming media segment according to the present invention.
  • the execution entity of this embodiment is a base station, and the base station can be implemented by software and/or hardware.
  • the solution of this embodiment is applied in an LTE system.
  • the difference between the embodiment and the embodiment shown in FIG. 11 is that the base station receives the media representation description file and selects a streaming media segment matching the transmission capability information corresponding to the mobile terminal in the media presentation description file to send to the
  • the method in this embodiment may include:
  • Step 1301 The first base station receives a media presentation description file that is sent by the mobile terminal after receiving the media presentation description file sent by the dynamic adaptive media server.
  • Step 1302 The first base station returns, to the mobile terminal, description information of the first streaming media segment, for the mobile terminal to send an application for the first streaming media segment to the dynamic adaptive media server.
  • the first streaming media segment is a streaming media segment selected in the media presentation description file that matches the transmission capability information corresponding to the mobile terminal.
  • the first base station returns the description information of the first streaming media segment to the mobile terminal, where the first base station returns the description information of the first streaming media segment to the mobile terminal, where the first streaming media segment is configured by the first base station
  • the media indicates a streaming media segment selected in the description file that matches the transmission capability information corresponding to the mobile terminal; the transmission capability information is obtained by the first base station estimating the transmission capability of the mobile terminal; or
  • the first base station receives the description information of the first streaming media segment sent by the second base station, and sends the description information to the mobile terminal.
  • the first streaming media segment is selected by the second base station in the media presentation description file and corresponds to the mobile terminal.
  • the transport capability information is matched by the streaming media segment; the mobile terminal is to be handed over by the first base station to the second base station, and the transmission capability information is obtained by the second base station estimating the transmission capability of the mobile terminal, and the media representation description file is the first base station. Forwarded to the second base station.
  • the method of this embodiment may be implemented by using the first base station in the embodiment shown in FIG. 9 to implement the technical solution of the embodiment.
  • the implementation principle and technical effects are similar, and details are not described herein again.
  • FIG. 14 is a schematic structural diagram of Embodiment 1 of a mobile terminal device according to the present invention.
  • the mobile terminal device 140 provided by the embodiment includes a processor 1401 and a memory 1402.
  • the mobile terminal device 140 may further include a transmitter 1403 and a receiver 1404.
  • Transmitter 1403 and receiver 1404 can be coupled to processor 1401.
  • the transmitter 1403 is configured to transmit data or information
  • the receiver 1404 is configured to receive data or information
  • the memory 1402 stores execution instructions.
  • the processor 1401 communicates with the memory 1402, and the processor 1401 invokes
  • the execution instructions in the memory 1402 are used to perform the technical solutions of the method embodiments shown in FIG. 10 and FIG. 12, and the implementation principles and technical effects are similar, and details are not described herein again.
  • FIG. 15 is a schematic structural diagram of Embodiment 1 of a base station device according to the present invention.
  • the base station device 150 provided in this embodiment includes a processor 1501 and a memory 1502.
  • the base station device 150 can also include a transmitter 1503 and a receiver 1504.
  • Transmitter 1503 and receiver 1504 can be coupled to processor 1501.
  • the transmitter 1503 is configured to transmit data or information
  • the receiver 1504 is configured to receive data or information
  • the memory 1502 stores execution instructions.
  • the processor 1501 communicates with the memory 1502, and the processor 1501 calls the memory.
  • the execution instructions in the method of the method of the method shown in FIG. 11 and FIG. 13 are similar to the technical solutions of the method embodiment shown in FIG.
  • the disclosed apparatus and method may be implemented in other manners.
  • the device embodiments described above are only schematic.
  • the division of the unit or module is only a logical function division.
  • there may be another division manner for example, multiple units or modules may be used. Combined or can be integrated into another system, or some features can be ignored, or not executed.
  • the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or module, and may be in electrical, mechanical or other form.
  • the modules described as separate components may or may not be physically separate.
  • the components displayed as modules may or may not be physical modules, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the modules may be selected according to actual needs to achieve the objectives of the solution of the embodiment.
  • the aforementioned program can be stored in a computer readable storage medium.
  • the steps including the foregoing method embodiments are performed; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

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Abstract

本发明实施例提供一种移动终端、第一基站及流媒体分段获取方法。本发明移动终端,包括:发送模块,用于在接收到动态自适应媒体服务器发送的媒体表示描述文件后,向第一基站发送用于获取移动终端对应的传输能力信息的请求;接收模块,用于接收所述第一基站返回的所述移动终端对应的传输能力信息;处理模块,用于在所述媒体表示描述文件中选择与所述传输能力信息相匹配的首次流媒体分段;所述发送模块还用于向所述动态自适应媒体服务器发送对所述首次流媒体分段的申请。本发明实施例提高了移动终端对首次流媒体分段的申请的准确性,解决了现有技术中初次申请流媒体分段不准确的问题。

Description

移动终端、 第一基站及流媒体分段获取方法
技术领域
本发明实施例涉及通信技术, 尤其涉及一种移动终端、 第一基站及流媒 体分段获取方法。 背景技术
超文本传输协议(Hyper Text Transfer Protocol, 简称 HTTP)动态自适应 流媒体 (Dynamic Adaptive Streaming over HTTP, 简称 DASH) 是基于 HTTP 的媒体服务,主要由 HTTP服务器 Server和 DASH客户端 client组成。 HTTP Server可以将一个视频文件压缩为不同码率的多个视频源,每个视频源切割成 多个时间段相等的分段 segment, 这些视频 segment可以作为单独视频访问单 元。 HTTP Server将不同码率的视频源和建议带宽对应关系写入媒体表示描述 (Media Presentation Description,简称 MPD)文件,然后发送给 DASH Client。 DASH client可以根据当前估算的带宽情况, 选择合适的 segment下载播放。
视频服务开始时, HTTP Server首先将 MPD文件发送到 DASH client DASH client利用 HTTP协议 GET方式向 HTTP Server申请 segment下载 并播放, 并且根据当前 segment下载速率, 决定下一段 segment申请。 如 果实际下载速率高于当前 segment 码率, 则下一段申请较高码率的 segment, 否则下一段申请较低码率的 segment。但是, 在初次申请 segment 的时候, 没有前一段作为参考。 现有技术中 DASH client初次申请 segment 通常有三种方式: 1,申请最小码率的 segment; 2,申请最大码率的 segment; 3 , 申请 DASH client固定配置的 segment。
上述初次申请 segment的方式, 存在不准确的问题。 例如按照最小的 码率申请, 然后将前两段下载速率作为参考, 申请下一段 segment进行播 放, 即使当前信道条件非常好, 开始的播放效果也比较差。 发明内容
本发明实施例提供一种移动终端、 第一基站及流媒体分段获取方法, 以 克服现有技术中初次申请 segment不准确的问题。
第一方面, 本发明实施例提供一种移动终端, 包括:
发送模块, 用于在接收到动态自适应媒体服务器发送的媒体表示描述 文件后, 向第一基站发送用于获取移动终端对应的传输能力信息的请求; 接收模块, 用于接收所述第一基站返回的所述移动终端对应的传输能 力信息;
处理模块, 用于在所述媒体表示描述文件中选择与所述传输能力信息 相匹配的首次流媒体分段;
所述发送模块还用于向所述动态自适应媒体服务器发送对所述首次流 媒体分段的申请。
结合第一方面, 在第一种可能的实现方式中, 所述接收模块, 具体用 于:
接收所述第一基站发送的、 所述第一基站对所述移动终端进行传输能 力估计而获得的所述传输能力信息; 或
接收所述第一基站转发的、 来自于第二基站的所述传输能力信息; 其 中, 所述移动终端要由所述第一基站切换至所述第二基站, 所述传输能力 信息是所述第二基站对所述移动终端进行传输能力估计而获得的。
第二方面, 本发明实施例提供一种第一基站, 包括:
接收模块, 用于接收移动终端在接收到动态自适应媒体服务器发送的 媒体表示描述文件后发送的用于获取所述移动终端对应的传输能力信息的 请求;
发送模块, 用于向所述移动终端发送所述移动终端对应的传输能力信 息, 以供所述移动终端在所述媒体表示描述文件中选择与所述传输能力信 息相匹配的首次流媒体分段, 并向所述动态自适应媒体服务器发送对所述 首次流媒体分段的申请。
结合第二方面, 在第一种可能的实现方式中, 还包括:
处理模块, 用于对所述移动终端进行传输能力估计获得所述传输能力 信息, 所述发送模块还用于发送所述传输能力信息给所述移动终端; 或 所述接收模块用于接收第二基站发送的所述传输能力信息, 对应的, 所述发送模块用于发送所述传输能力信息给所述移动终端; 其中, 所述移 动终端要由所述第一基站切换至所述第二基站, 所述传输能力信息是所述 第二基站对所述移动终端进行传输能力估计而获得的。
第三方面, 本发明实施例提供一种移动终端, 包括:
发送模块, 用于在接收到动态自适应媒体服务器发送的媒体表示描述 文件后, 向第一基站发送所述媒体表示描述文件;
接收模块,用于接收所述第一基站返回的首次流媒体分段的描述信息, 所述首次流媒体分段是在所述媒体表示描述文件中选择的、 与移动终端对 应的传输能力信息相匹配的流媒体分段;
所述发送模块, 还用于向所述动态自适应媒体服务器发送对所述首次 流媒体分段的申请。
结合第三方面,在第一种可能的实现方式中,所述接收模块具体用于: 接收所述第一基站发送的首次流媒体分段的描述信息, 其中, 所述首 次流媒体分段是由所述第一基站在所述媒体表示描述文件中选择的、 与所 述移动终端对应的传输能力信息相匹配的流媒体分段; 所述传输能力信息 是所述第一基站对所述移动终端进行传输能力估计而获得的;
接收所述第一基站转发的、 来自于第二基站的首次流媒体分段的描述 信息; 其中, 所述首次流媒体分段是由所述第二基站在所述媒体表示描述 文件中选择的、与所述移动终端对应的传输能力信息相匹配的流媒体分段; 所述移动终端要由所述第一基站切换至所述第二基站, 所述传输能力信息 是所述第二基站对所述移动终端进行传输能力估计而获得的。
第四方面, 本发明实施例提供一种第一基站, 包括:
接收模块, 用于接收移动终端在接收到动态自适应媒体服务器发送的 媒体表示描述文件后发送的所述媒体表示描述文件;
发送模块, 用于向所述移动终端返回首次流媒体分段的描述信息, 以 供所述移动终端向所述动态自适应媒体服务器发送对所述首次流媒体分段 的申请; 其中,所述首次流媒体分段是在所述媒体表示描述文件中选择的、 与所述移动终端对应的传输能力信息相匹配的流媒体分段。
结合第四方面, 在第一种可能的实现方式中, 所述发送模块用于向所 述移动终端返回首次流媒体分段的描述信息; 其中, 所述首次流媒体分段 是由所述第一基站在所述媒体表示描述文件中选择的、 与所述移动终端对 应的传输能力信息相匹配的流媒体分段; 所述传输能力信息是所述第一基 站对所述移动终端进行传输能力估计而获得的; 或
所述接收模块,用于接收第二基站发送的首次流媒体分段的描述信息, 对应的, 所述发送模块, 用于发送所述首次流媒体分段的描述信息给所述 移动终端; 其中, 所述首次流媒体分段是由所述第二基站在所述媒体表示 描述文件中选择的、 与所述移动终端对应的传输能力信息相匹配的流媒体 分段; 所述移动终端要由所述第一基站切换至所述第二基站, 所述传输能 力信息是所述第二基站对所述移动终端进行传输能力估计而获得的, 所述 媒体表示描述文件是所述第一基站转发给所述第二基站的。
第五方面, 本发明实施例提供一种流媒体分段获取方法, 包括: 移动终端在接收到动态自适应媒体服务器发送的媒体表示描述文件 后, 向第一基站发送用于获取所述移动终端对应的传输能力信息的请求; 所述移动终端接收所述第一基站返回的所述移动终端对应的传输能力 信息;
所述移动终端在所述媒体表示描述文件中选择与所述传输能力信息相 匹配的首次流媒体分段, 并向所述动态自适应媒体服务器发送对所述首次 流媒体分段的申请。
结合第五方面, 在第一种可能的实现方式中, 所述移动终端接收所述 第一基站返回的所述移动终端对应的传输能力信息包括:
所述移动终端接收所述第一基站发送的、 所述第一基站对所述移动终 端进行传输能力估计而获得的所述传输能力信息; 或
所述移动终端接收所述第一基站转发的、 来自于第二基站的所述传输 能力信息; 其中, 所述移动终端要由所述第一基站切换至所述第二基站, 所述传输能力信息是所述第二基站对所述移动终端进行传输能力估计而获 得的。
第六方面, 本发明实施例提供一种流媒体分段获取方法, 包括: 第一基站接收移动终端在接收到动态自适应媒体服务器发送的媒体表 示描述文件后发送的用于获取所述移动终端对应的传输能力信息的请求; 所述第一基站向所述移动终端返回对应的传输能力信息, 以供所述移 动终端在所述媒体表示描述文件中选择与所述传输能力信息相匹配的首次 流媒体分段, 并向所述动态自适应媒体服务器发送对所述首次流媒体分段 的申请。 结合第六方面, 在第一种可能的实现方式中, 所述第一基站向所述移 动终端返回对应的传输能力信息包括:
所述第一基站对所述移动终端进行传输能力估计获得所述传输能力信 息, 并发送给所述移动终端; 或
所述第一基站接收第二基站发送的所述传输能力信息, 并发送给所述 移动终端; 其中, 所述移动终端要由所述第一基站切换至所述第二基站, 所述传输能力信息是所述第二基站对所述移动终端进行传输能力估计而获 得的。
第七方面, 本发明实施例提供一种流媒体分段获取方法, 包括: 移动终端在接收到动态自适应媒体服务器发送的媒体表示描述文件 后, 向第一基站发送所述媒体表示描述文件;
所述移动终端接收所述第一基站返回的首次流媒体分段的描述信息, 所述首次流媒体分段是在所述媒体表示描述文件中选择的、 与所述移动终 端对应的传输能力信息相匹配的流媒体分段;
所述移动终端向所述动态自适应媒体服务器发送对所述首次流媒体分 段的申请。
结合第七方面, 在第一种可能的实现方式中, 所述移动终端接收所述 第一基站返回的首次流媒体分段的描述信息包括:
所述移动终端接收所述第一基站发送的首次流媒体分段的描述信息, 其中, 所述首次流媒体分段是由所述第一基站在所述媒体表示描述文件中 选择的、 与所述移动终端对应的传输能力信息相匹配的流媒体分段; 所述 传输能力信息是所述第一基站对所述移动终端进行传输能力估计而获得 的;
所述移动终端接收所述第一基站转发的、 来自于第二基站的首次流媒 体分段的描述信息; 其中, 所述首次流媒体分段是由所述第二基站在所述 媒体表示描述文件中选择的、 与所述移动终端对应的传输能力信息相匹配 的流媒体分段; 所述移动终端要由所述第一基站切换至所述第二基站, 所 述传输能力信息是所述第二基站对所述移动终端进行传输能力估计而获得 的。
第八方面, 本发明实施例提供一种流媒体分段获取方法, 包括: 第一基站接收移动终端在接收到动态自适应媒体服务器发送的媒体表 示描述文件后发送的所述媒体表示描述文件;
所述第一基站向所述移动终端返回首次流媒体分段的描述信息, 以供 所述移动终端向所述动态自适应媒体服务器发送对所述首次流媒体分段的 申请; 其中, 所述首次流媒体分段是在所述媒体表示描述文件中选择的、 与所述移动终端对应的传输能力信息相匹配的流媒体分段。
结合第八方面, 在第一种可能的实现方式中, 所述第一基站向所述移 动终端返回首次流媒体分段的描述信息包括:
所述第一基站向所述移动终端返回首次流媒体分段的描述信息;其中, 所述首次流媒体分段是由所述第一基站在所述媒体表示描述文件中选择 的、 与所述移动终端对应的传输能力信息相匹配的流媒体分段; 所述传输 能力信息是所述第一基站对所述移动终端进行传输能力估计而获得的; 或 所述第一基站接收第二基站发送的首次流媒体分段的描述信息, 并发 送给所述移动终端; 其中, 所述首次流媒体分段是由所述第二基站在所述 媒体表示描述文件中选择的、 与所述移动终端对应的传输能力信息相匹配 的流媒体分段; 所述移动终端要由所述第一基站切换至所述第二基站, 所 述传输能力信息是所述第二基站对所述移动终端进行传输能力估计而获得 的, 所述媒体表示描述文件是所述第一基站转发给所述第二基站的。
第九方面, 本发明实施例提供一种移动终端设备, 包括:
处理器和存储器, 所述存储器存储执行指令, 当所述移动终端设备运行 时, 所述处理器与所述存储器之间通信, 所述处理器执行所述执行指令使得 所述移动终端设备执行如第五方面或第七方面中任一所述的方法。
第十方面, 本发明实施例提供一种基站设备, 包括:
处理器和存储器, 所述存储器存储执行指令, 当所述基站设备运行时, 所述处理器与所述存储器之间通信, 所述处理器执行所述执行指令使得所述 基站设备执行如第六方面或第八方面中任一所述的方法。
本发明实施例移动终端、 第一基站及流媒体分段获取方法, 移动终端 在接收到动态自适应媒体服务器发送的媒体表示描述文件后, 向第一基站 发送用于获取所述移动终端对应的传输能力信息的请求, 第一基站向移动 终端返回对所述移动终端进行传输能力估计获得的所述传输能力信息, 所 述移动终端接收所述传输能力信息, 在所述媒体表示描述文件中选择与所 述传输能力信息相匹配的首次流媒体分段, 并向所述动态自适应媒体服务 器发送对所述首次流媒体分段的申请; 或移动终端在接收到动态自适应媒 体服务器发送的媒体表示描述文件后, 向第一基站发送所述媒体表示描述 文件, 所述第一基站在所述媒体表示描述文件中选择与所述移动终端对应 的传输能力信息相匹配的首次流媒体分段返回首次流媒体分段的描述信息 给所述移动终端, 所述移动终端向所述动态自适应媒体服务器发送对所述 首次流媒体分段的申请, 上述首次流媒体分段的选择都是根据移动终端对 应的传输能力进行的选择, 与当前传输能力相匹配, 因此移动终端对首次 流媒体分段的申请更准确, 解决了现有技术中初次申请流媒体分段不准确 的问题。 附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案, 下面将对实 施例或现有技术描述中所需要使用的附图作一简单地介绍, 显而易见地, 下 面描述中的附图是本发明的一些实施例, 对于本领域普通技术人员来讲, 在 不付出创造性劳动性的前提下, 还可以根据这些附图获得其他的附图。
图 1为本发明移动终端实施例一的结构示意图;
图 2为本发明实施例一的信令流程图一;
图 3为本发明实施例一的信令流程图二;
图 4为本发明第一基站实施例一的结构示意图一;
图 5为本发明第一基站实施例一的结构示意图二;
图 6为本发明移动终端实施例二的结构示意图;
图 7为本发明实施例二的信令流程图一;
图 8为本发明实施例二的信令流程图二;
图 9为本发明第一基站实施例二的结构示意图;
图 10为本发明流媒体分段获取方法实施例一的流程图;
图 11为本发明流媒体分段获取方法实施例二的流程图;
图 12为本发明流媒体分段获取方法实施例三的流程图;
图 13为本发明流媒体分段获取方法实施例四的流程图;
图 14为本发明移动终端设备实施例一的结构示意图; 图 15为本发明基站设备实施例一的结构示意图。 具体实施方式
为使本发明实施例的目的、 技术方案和优点更加清楚, 下面将结合本发 明实施例中的附图, 对本发明实施例中的技术方案进行清楚、 完整地描述, 显然, 所描述的实施例是本发明一部分实施例, 而不是全部的实施例。 基于 本发明中的实施例, 本领域普通技术人员在没有作出创造性劳动前提下所获 得的所有其他实施例, 都属于本发明保护的范围。
图 1为本发明移动终端实施例一的结构示意图, 图 2为本发明实施例一 的信令流程图一, 图 3 为本发明实施例一的信令流程图二。 本实施例的执行 主体为可以作为 DASH Client的移动终端, 该移动终端可以通过软件和 /或硬 件实现。 本实施例的方案应用在长期演进 (Long Term Evolution, 简称 LTE) 系统中。 如图 1所示, 本实施例的移动终端 10可以包括: 发送模块 101、 接 收模块 102和处理模块 103, 其中, 发送模块 101, 用于在接收到动态自适应 媒体服务器发送的媒体表示描述文件后, 向第一基站发送用于获取移动终端 对应的传输能力信息的请求;
接收模块 102, 用于接收第一基站返回的移动终端对应的传输能力信息; 处理模块 103,用于在媒体表示描述文件中选择与传输能力信息相匹配的 首次流媒体分段;
发送模块 101 还用于向动态自适应媒体服务器发送对首次流媒体分段的 申请。
具体地, 如图 2所示, 作为 DASH client的移动终端 10的发送模块 101 在接收到动态自适应媒体服务器反馈的媒体表示描述文件 MPD文件后(之前 可以向动态自适应媒体服务器发射 MPD请求) , 向第一基站发送用于获取移 动终端对应的传输能力信息的请求。 第一基站接收传输能力信息的请求。 在 LTE系统中, 空口的上下行资源是基于调度的, 每个移动终端的发送和接收 都会由基站通过调度算法进行分配。 那么在移动终端 10接入第一基站, 申请 流媒体分段时, 第一基站可以根据当前负载情况, 移动终端的地理位置信息 和信道条件等估计出一段时间内可以为这个移动终端调度多少资源的能力即 移动终端对应的传输能力。 第一基站将对移动终端进行传输能力估计获得的 传输能力信息发送给移动终端 10,移动终端 10的接收模块 102接收第一基站 返回的传输能力信息, 移动终端 10的处理模块 103在 MPD文件中选择与传 输能力信息相匹配的首次流媒体分段, 即选择的首次流媒体分段的码率与传 输能力相匹配, 移动终端 10的发送模块 101向动态自适应媒体服务器发送对 首次流媒体分段的申请, 动态自适应媒体服务器返回首次流媒体分段给移动 终端。
可选地, 接收模块 102, 具体用于:
接收第一基站发送的、 第一基站对移动终端进行传输能力估计而获得的 传输能力信息; 或
接收第一基站转发的、 来自于第二基站的传输能力信息; 其中, 移动终 端要由第一基站切换至第二基站, 传输能力信息是第二基站对移动终端进行 传输能力估计而获得的。
具体地, 移动终端将传输能力信息的请求发送给第一基站之后, 如果一 直在第一基站的范围内, 则由第一基站对移动终端的传输能力进行估计返回 传输能力信息给移动终端, 移动终端 10的接收模块 102接收传输能力信息。 如果移动终端要由第一基站切换至第二基站, 则如图 3所示, 第二基站在收 到第一基站的切换请求后, 根据当前负载, 信道情况等估计移动终端接入后 的传输能力, 第二基站将这个移动终端的传输能力信息通过切换请求响应消 息发送给第一基站, 第一基站可以将这个移动终端的传输能力信息通过无线 资源控制协议 (Radio Resource Control, 简称 RRC)连接重配消息发送给移动 终端, 移动终端 10的接收模块 102接收传输能力信息, 之后的流程与图 2类 本实施例, 移动终端在接收到动态自适应媒体服务器发送的媒体表示描 述文件后, 向第一基站发送用于获取所述移动终端对应的传输能力信息的请 求, 第一基站向移动终端返回对所述移动终端进行传输能力估计获得的所述 传输能力信息, 如果移动终端要由第一基站切换至第二基站, 则由第二基站 进行传输能力估计并转发给第一基站, 否则由第一基站进行估计, 所述移动 终端接收所述传输能力信息, 在所述媒体表示描述文件中选择与所述传输能 力信息相匹配的首次流媒体分段, 并向所述动态自适应媒体服务器发送对所 述首次流媒体分段的申请, 上述首次流媒体分段的选择都是根据移动终端对 应的传输能力进行的选择, 与当前传输能力相匹配, 因此移动终端对首次流 媒体分段的申请更准确, 解决了现有技术中初次申请流媒体分段不准确的问 题。
图 4为本发明第一基站实施例一的结构示意图一, 图 5为本发明第一基 站实施例一的结构示意图二。 本实施例的执行主体为基站, 该基站可以通过 软件和 /或硬件实现。 本实施例的方案应用在 LTE系统中。 如图 4所示, 本实 施例的第一基站 40可以包括: 接收模块 401和发送模块 402, 其中接收模块 401, 用于接收移动终端在接收到动态自适应媒体服务器发送的媒体表示描述 文件后发送的用于获取移动终端对应的传输能力信息的请求; 发送模块 402, 用于向移动终端返回移动终端对应的传输能力信息, 以供移动终端在媒体表 示描述文件中选择与传输能力信息相匹配的首次流媒体分段, 并向动态自适 应媒体服务器发送对首次流媒体分段的申请。
具体地, 如图 2所示, 第一基站 40的接收模块 401接收移动终端 10在 接收到动态自适应媒体服务器发送的媒体表示描述文件 MPD文件后, 向第一 基站发送用于获取移动终端对应的传输能力信息的请求。 在 LTE系统中, 空 口的上下行资源是基于调度的, 每个移动终端的发送和接收都会由基站通过 调度算法进行分配。 那么在移动终端 10接入第一基站, 申请流媒体分段时, 第一基站可以根据当前负载情况, 移动终端的地理位置信息和信道条件等估 计出一段时间内可以为这个移动终端调度多少资源的能力即移动终端对应的 传输能力。 第一基站 40将对移动终端进行传输能力估计获得的传输能力信息 发送给移动终端 10,移动终端 10接收第一基站返回的传输能力信息,在 MPD 文件中选择与传输能力信息相匹配的首次流媒体分段, 即选择的首次流媒体 分段的码率与传输能力相匹配, 向动态自适应媒体服务器发送对首次流媒体 分段的申请, 动态自适应媒体服务器返回首次流媒体分段给移动终端。
可选地, 如图 5所示, 本实施例的第一基站 40还可以包括:
处理模块 403, 用于对移动终端进行传输能力估计获得传输能力信息, 发 送模块 402还用于发送传输能力信息给移动终端; 或
接收模块 401 用于接收第二基站发送的传输能力信息, 对应的, 发送模 块 402用于发送传输能力信息给移动终端; 其中, 移动终端要由第一基站切 换至第二基站, 传输能力信息是第二基站对移动终端进行传输能力估计而获 得的。
具体地, 如图 5所示, 第一基站 40还可以包括处理模块 403, 对移动终 端进行传输能力估计获得传输能力信息, 发送模块 402发送传输能力信息给 移动终端; 或者, 在图 4所示的结构基础上, 在移动终端要由第一基站切换 至第二基站时, 第一基站 40的接收模块 401接收第二基站发送的传输能力信 息, 对应的, 发送模块 402发送传输能力信息给移动终端, 传输能力信息是 第二基站对移动终端进行传输能力估计而获得的。
本实施例, 第一基站接收移动终端在接收到动态自适应媒体服务器发送 的媒体表示描述文件后发送的用于获取所述移动终端对应的传输能力信息的 请求, 第一基站向移动终端返回对所述移动终端进行传输能力估计获得的所 述传输能力信息, 如果移动终端要由第一基站切换至第二基站, 则由第二基 站进行传输能力估计并转发给第一基站, 否则由第一基站进行估计, 所述移 动终端接收所述传输能力信息, 在所述媒体表示描述文件中选择与所述传输 能力信息相匹配的首次流媒体分段, 并向所述动态自适应媒体服务器发送对 所述首次流媒体分段的申请, 上述首次流媒体分段的选择都是根据移动终端 对应的传输能力进行的选择, 与当前传输能力相匹配, 因此移动终端对首次 流媒体分段的申请更准确, 解决了现有技术中初次申请流媒体分段不准确的 问题。
图 6为本发明移动终端实施例二的结构示意图, 图 7为本发明实施例二 的信令流程图一, 图 8 为本发明实施例二的信令流程图二。 本实施例的执行 主体为可以作为 DASH Client的移动终端, 该移动终端可以通过软件和 /或硬 件实现。 本实施例的方案应用在 LTE系统中。 如图 6所示, 本实施例的移动 终端 60可以包括: 发送模块 601和接收模块 602, 其中, 发送模块 601用于 在接收到动态自适应媒体服务器发送的媒体表示描述文件后, 向第一基站发 送媒体表示描述文件; 接收模块 602, 用于接收第一基站返回的首次流媒体分 段的描述信息, 首次流媒体分段是在媒体表示描述文件中选择的、 与移动终 端对应的传输能力信息相匹配的流媒体分段; 发送模块 601, 用于向动态自适 应媒体服务器发送对首次流媒体分段的申请。
具体地, 如图 7所示, 作为 DASH client的移动终端 60的发送模块 601 在接收到动态自适应媒体服务器反馈的媒体表示描述文件 MPD文件后(之前 可以向动态自适应媒体服务器发射 MPD请求) , 向第一基站发送用于 MPD 文件。 第一基站接收 MPD文件。 在 LTE系统中, 空口的上下行资源是基于 调度的, 每个移动终端的发送和接收都会由基站通过调度算法进行分配。 那 么在移动终端 60接入第一基站, 申请流媒体分段时, 第一基站可以根据当前 负载情况, 移动终端的地理位置信息和信道条件等估计出一段时间内可以为 这个移动终端调度多少资源的能力即移动终端对应的传输能力。 第一基站将 对移动终端进行传输能力估计获得传输能力信息,在 MPD文件中选择与移动 终端对应的传输能力信息相匹配的流媒体分段发送给移动终端 60, 移动终端 60的接收模块 602接收第一基站返回的首次流媒体分段的描述信息, 首次流 媒体分段的码率与传输能力相匹配, 移动终端 60的发送模块 601根据首次流 媒体分段的描述信息向动态自适应媒体服务器发送对首次流媒体分段的申 请, 动态自适应媒体服务器返回首次流媒体分段给移动终端。
可选地, 接收模块 602具体用于:
接收第一基站发送的首次流媒体分段的描述信息, 其中, 首次流媒体分 段是由第一基站在媒体表示描述文件中选择的、 与移动终端对应的传输能力 信息相匹配的流媒体分段; 传输能力信息是第一基站对移动终端进行传输能 力估计而获得的;
接收第一基站转发的、 来自于第二基站的首次流媒体分段的描述信息; 其中, 首次流媒体分段是由第二基站在媒体表示描述文件中选择的、 与移动 终端对应的传输能力信息相匹配的流媒体分段; 移动终端要由第一基站切换 至第二基站, 传输能力信息是第二基站对移动终端进行传输能力估计而获得 的。
具体地, 移动终端将 MPD文件发送给第一基站之后, 如果一直在第一基 站的范围内,则由第一基站对移动终端的传输能力进行估计并在 MPD文件中 选择与移动终端对应的传输能力相匹配的流媒体分段返回给移动终端, 如果 移动终端要由第一基站切换至第二基站, 则如图 8所示, 第二基站在收到第 一基站的切换请求后, 根据当前负载, 信道情况等估计移动终端接入后的传 输能力,并由第二基站在 MPD文件中选择与移动终端对应的传输能力相匹配 的首次流媒体分段, 第二基站将首次流媒体分段的描述信息通过切换请求响 应消息发送给第一基站, 第一基站可以将首次流媒体分段的描述信息通过无 线资源控制协议 (Radio Resource Control, 简称 RRC)连接重配消息发送给移 动终端, 移动终端 60的接收模块 602接收首次流媒体分段的描述信息, 之后 的流程与图 7类似。 本实施例, 移动终端在接收到动态自适应媒体服务器发送的媒体表示描 述文件后, 向第一基站发送所述媒体表示描述文件, 所述第一基站在所述媒 体表示描述文件中选择与所述移动终端对应的传输能力信息相匹配的首次流 媒体分段返回首次流媒体分段的描述信息给所述移动终端, 所述移动终端向 所述动态自适应媒体服务器发送对所述首次流媒体分段的申请, 上述首次流 媒体分段的选择都是根据移动终端对应的传输能力进行的选择, 与当前传输 能力相匹配, 因此移动终端对首次流媒体分段的申请更准确, 解决了现有技 术中初次申请流媒体分段不准确的问题。
图 9为本发明第一基站实施例二的结构示意图, 本实施例的执行主体为 基站, 该基站可以通过软件和 /或硬件实现。 本实施例的方案应用在 LTE系统 中。 如图 9所示, 本实施例的第一基站 90可以包括: 接收模块 901和发送模 块 902, 其中, 接收模块 901用于接收移动终端在接收到动态自适应媒体服务 器发送的媒体表示描述文件后发送的媒体表示描述文件; 发送模块 902, 用于 向移动终端返回首次流媒体分段的描述信息, 以供移动终端向动态自适应媒 体服务器发送对首次流媒体分段的申请; 其中, 首次流媒体分段是在媒体表 示描述文件中选择的、 与移动终端对应的传输能力信息相匹配的流媒体分段。
具体地, 如图 7所示, 第一基站 90的接收模块 901接收移动终端 60在 接收到动态自适应媒体服务器发送的媒体表示描述文件 MPD 文件后发送的 MPD文件。在 LTE系统中, 空口的上下行资源是基于调度的, 每个移动终端 的发送和接收都会由基站通过调度算法进行分配。 那么在移动终端 60接入第 一基站, 申请流媒体分段时, 第一基站可以根据当前负载情况, 移动终端的 地理位置信息和信道条件等估计出一段时间内可以为这个移动终端调度多少 资源的能力即移动终端对应的传输能力。 第一基站 90将对移动终端进行传输 能力估计获得传输能力信息,在 MPD文件中选择与移动终端对应的传输能力 信息相匹配的流媒体分段发送给移动终端 60,第一基站 90的发送模块 902向 移动终端 60返回首次流媒体分段的描述信息, 首次流媒体分段的码率与传输 能力相匹配, 首次流媒体分段可以是第一基站 90在媒体表示描述文件中选择 的、 与移动终端对应的传输能力信息相匹配的流媒体分段。 移动终端 60根据 首次流媒体分段的描述信息向动态自适应媒体服务器发送对首次流媒体分段 的申请, 动态自适应媒体服务器返回首次流媒体分段给移动终端。
可选地, 发送模块 902用于向移动终端返回首次流媒体分段的描述信息; 其中, 首次流媒体分段是由第一基站在媒体表示描述文件中选择的、 与移动 终端对应的传输能力信息相匹配的流媒体分段; 传输能力信息是第一基站对 移动终端进行传输能力估计而获得的; 或
接收模块 901, 用于接收第二基站发送的首次流媒体分段的描述信息, 对 应的,发送模块 902,用于发送首次流媒体分段的描述信息给移动终端;其中, 首次流媒体分段是由第二基站在媒体表示描述文件中选择的、 与移动终端对 应的传输能力信息相匹配的流媒体分段; 移动终端要由第一基站切换至第二 基站, 传输能力信息是第二基站对移动终端进行传输能力估计而获得的, 媒 体表示描述文件是第一基站转发给第二基站的。
具体地, 移动终端将 MPD文件发送给第一基站之后, 如果一直在第一基 站的范围内,则由第一基站对移动终端的传输能力进行估计并在 MPD文件中 选择与移动终端对应的传输能力相匹配的流媒体分段由发送模块 902返回给 移动终端, 如果移动终端要由第一基站切换至第二基站, 则如图 8所示, 第 二基站在收到第一基站的切换请求后, 根据当前负载, 信道情况等估计移动 终端接入后的传输能力,并由第二基站在 MPD文件中选择与移动终端对应的 传输能力相匹配的首次流媒体分段, 第二基站将首次流媒体分段的描述信息 通过切换请求响应消息发送给第一基站, 第一基站 90的接收模块 901接收首 次流媒体分段的描述信息, 并由发送模块 902通过无线资源控制协议 (Radio Resource Control, 简称 RRC)连接重配消息发送给移动终端。
本实施例, 第一基站接收移动终端在接收到动态自适应媒体服务器发送 的媒体表示描述文件后发送的媒体表示描述文件, 如果移动终端要由第一基 站切换至第二基站, 则由第二基站进行传输能力估计并在所述媒体表示描述 文件中选择与所述传输能力信息相匹配的首次流媒体分段, 由第一基站转发 首次流媒体分段的描述信息给移动终端, 否则由第一基站进行传输能力估计 并在所述媒体表示描述文件中选择与所述传输能力信息相匹配的首次流媒体 分段将描述信息发送给移动终端, 移动终端接收所述描述信息, 并向所述动 态自适应媒体服务器发送对所述首次流媒体分段的申请, 上述首次流媒体分 段的选择都是根据移动终端对应的传输能力进行的选择, 与当前传输能力相 匹配, 因此移动终端对首次流媒体分段的申请更准确, 解决了现有技术中初 次申请流媒体分段不准确的问题。
图 10为本发明流媒体分段获取方法实施例一的流程图, 本实施例的执行 主体为可以作为 DASH Client的移动终端, 该移动终端可以通过软件和 /或硬 件实现。本实施例的方案应用在 LTE系统中。如图 10所示, 本实施例的方法 可以包括:
步骤 1001、 移动终端在接收到动态自适应媒体服务器发送的媒体表示描 述文件后, 向第一基站发送用于获取所述移动终端对应的传输能力信息的请 求。
步骤 1002、 移动终端接收所述第一基站返回的移动终端对应的传输能力 信息。
步骤 1003、 移动终端在媒体表示描述文件中选择与传输能力信息相匹配 的首次流媒体分段, 并向动态自适应媒体服务器发送对首次流媒体分段的申 请。
可选地, 移动终端接收第一基站返回的移动终端对应的传输能力信息包 括:
移动终端接收第一基站发送的、 第一基站对移动终端进行传输能力估计 而获得的传输能力信息; 或
移动终端接收第一基站转发的、 来自于第二基站的传输能力信息; 其中, 移动终端要由第一基站切换至第二基站, 传输能力信息是第二基站对移动终 端进行传输能力估计而获得的。
本实施例的方法, 可以采用图 1 所示实施例的移动终端执行本实施例的 技术方案, 其实现原理和技术效果类似, 此处不再赘述。
图 11为本发明流媒体分段获取方法实施例二的流程图, 本实施例的执行 主体为基站,该基站可以通过软件和 /或硬件实现。本实施例的方案应用在 LTE 系统中。 如图 11所示, 本实施例的方法可以包括:
步骤 1101、 第一基站接收移动终端在接收到动态自适应媒体服务器发送 的媒体表示描述文件后发送的用于获取所述移动终端对应的传输能力信息的 请求。
步骤 1102、 第一基站向移动终端返回对应的传输能力信息, 以供移动终 端在媒体表示描述文件中选择与传输能力信息相匹配的首次流媒体分段, 并 向动态自适应媒体服务器发送对首次流媒体分段的申请。
可选地, 第一基站向移动终端返回对应的传输能力信息包括:
第一基站对移动终端进行传输能力估计获得传输能力信息, 并发送给移 动终端; 或
第一基站接收第二基站发送的传输能力信息, 并发送给移动终端; 其中, 移动终端要由第一基站切换至第二基站, 传输能力信息是第二基站对移动终 端进行传输能力估计而获得的。
可选地, 第一基站向移动终端返回对应的传输能力信息包括:
第一基站对移动终端进行传输能力估计获得传输能力信息, 并发送给移 动终端; 或
第一基站接收第二基站发送的传输能力信息, 并发送给移动终端; 其中, 移动终端要由第一基站切换至第二基站, 传输能力信息是第二基站对移动终 端进行传输能力估计而获得的。
本实施例的方法, 可以采用图 4、 图 5所示实施例的第一基站执行本实施 例的技术方案, 其实现原理和技术效果类似, 此处不再赘述。
图 12为本发明流媒体分段获取方法实施例三的流程图, 本实施例的执行 主体为可以作为 DASH Client的移动终端, 该移动终端可以通过软件和 /或硬 件实现。 本实施例的方案应用在 LTE系统中。 如图 12所示, 本实施例与图 10所示实施例的区别在于移动终端向基站发送媒体表示描述文件, 由基站在 媒体表示描述文件中选择与移动终端对应的传输能力信息相匹配的流媒体分 段, 移动终端接收首次流媒体分段的描述信息, 本实施例的方法可以包括: 步骤 1201、 移动终端在接收到动态自适应媒体服务器发送的媒体表示描 述文件后, 向第一基站发送媒体表示描述文件。
步骤 1202、 移动终端接收第一基站返回的首次流媒体分段的描述信息, 首次流媒体分段是在媒体表示描述文件中选择的、 与移动终端对应的传输能 力信息相匹配的流媒体分段。
步骤 1203、 移动终端向动态自适应媒体服务器发送对首次流媒体分段的 申请。
可选地, 移动终端接收第一基站返回的首次流媒体分段的描述信息包括: 移动终端接收第一基站发送的首次流媒体分段的描述信息, 其中, 首次 流媒体分段是由第一基站在媒体表示描述文件中选择的、 与移动终端对应的 传输能力信息相匹配的流媒体分段; 传输能力信息是第一基站对移动终端进 行传输能力估计而获得的;
或 移动终端接收第一基站转发的、 来自于第二基站的首次流媒体分段的描 述信息; 其中, 首次流媒体分段是由第二基站在媒体表示描述文件中选择的、 与移动终端对应的传输能力信息相匹配的流媒体分段; 移动终端要由第一基 站切换至第二基站, 传输能力信息是第二基站对移动终端进行传输能力估计 而获得的。
本实施例的方法, 可以采用图 6所示实施例的移动终端执行本实施例的 技术方案, 其实现原理和技术效果类似, 此处不再赘述。
图 13为本发明流媒体分段获取方法实施例四的流程图, 本实施例的执行 主体为基站,该基站可以通过软件和 /或硬件实现。本实施例的方案应用在 LTE 系统中。 如图 13所示, 本实施例与图 11所示实施例的区别在于基站接收媒 体表示描述文件并在媒体表示描述文件中选择与移动终端对应的传输能力信 息相匹配的流媒体分段发送给移动终端, 本实施例的方法可以包括:
步骤 1301、 第一基站接收移动终端在接收到动态自适应媒体服务器发送 的媒体表示描述文件后发送的媒体表示描述文件。
步骤 1302、 第一基站向移动终端返回首次流媒体分段的描述信息, 以供 移动终端向动态自适应媒体服务器发送对首次流媒体分段的申请。
其中, 首次流媒体分段是在媒体表示描述文件中选择的、 与移动终端对 应的传输能力信息相匹配的流媒体分段。
可选地, 第一基站向移动终端返回首次流媒体分段的描述信息包括: 第一基站向移动终端返回首次流媒体分段的描述信息; 其中, 首次流媒 体分段是由第一基站在媒体表示描述文件中选择的、 与移动终端对应的传输 能力信息相匹配的流媒体分段; 传输能力信息是第一基站对移动终端进行传 输能力估计而获得的; 或
第一基站接收第二基站发送的首次流媒体分段的描述信息, 并发送给移 动终端; 其中, 首次流媒体分段是由第二基站在媒体表示描述文件中选择的、 与移动终端对应的传输能力信息相匹配的流媒体分段; 移动终端要由第一基 站切换至第二基站, 传输能力信息是第二基站对移动终端进行传输能力估计 而获得的, 媒体表示描述文件是第一基站转发给第二基站的。
本实施例的方法, 可以采用图 9所示实施例的第一基站执行本实施例的 技术方案, 其实现原理和技术效果类似, 此处不再赘述。
图 14为本发明移动终端设备实施例一的结构示意图。 如图 14所示, 本 实施例提供的移动终端设备 140包括处理器 1401和存储器 1402。移动终端设 备 140还可以包括发射器 1403、 接收器 1404。 发射器 1403和接收器 1404可 以和处理器 1401相连。其中,发射器 1403用于发送数据或信息,接收器 1404 用于接收数据或信息, 存储器 1402存储执行指令, 当移动终端设备 140运行 时, 处理器 1401与存储器 1402之间通信, 处理器 1401调用存储器 1402中 的执行指令, 用于执行如图 10、 图 12所示方法实施例的技术方案, 其实现原 理和技术效果类似, 此处不再赘述。
图 15为本发明基站设备实施例一的结构示意图。 如图 15所示, 本实施 例提供的基站设备 150包括处理器 1501和存储器 1502。基站设备 150还可以 包括发射器 1503、接收器 1504。发射器 1503和接收器 1504可以和处理器 1501 相连。 其中, 发射器 1503用于发送数据或信息, 接收器 1504用于接收数据 或信息, 存储器 1502存储执行指令, 当基站设备 150运行时, 处理器 1501 与存储器 1502之间通信, 处理器 1501调用存储器 1502中的执行指令, 用于 执行如图 11、图 13所示方法实施例的技术方案,其实现原理和技术效果类似, 此处不再赘述。
在本申请所提供的几个实施例中, 应该理解到, 所揭露的设备和方法, 可以通过其它的方式实现。 例如, 以上所描述的设备实施例仅仅是示意性的, 例如, 所述单元或模块的划分, 仅仅为一种逻辑功能划分, 实际实现时可以 有另外的划分方式, 例如多个单元或模块可以结合或者可以集成到另一个系 统, 或一些特征可以忽略, 或不执行。 另一点, 所显示或讨论的相互之间的 耦合或直接耦合或通信连接可以是通过一些接口, 设备或模块的间接耦合或 通信连接, 可以是电性, 机械或其它的形式。
所述作为分离部件说明的模块可以是或者也可以不是物理上分开的, 作 为模块显示的部件可以是或者也可以不是物理模块, 即可以位于一个地方, 或者也可以分布到多个网络单元上。 可以根据实际的需要选择其中的部分或 者全部模块来实现本实施例方案的目的。
本领域普通技术人员可以理解: 实现上述各方法实施例的全部或部分步 骤可以通过程序指令相关的硬件来完成。 前述的程序可以存储于一计算机可 读取存储介质中。 该程序在执行时, 执行包括上述各方法实施例的步骤; 而 前述的存储介质包括: ROM、 RAM, 磁碟或者光盘等各种可以存储程序代码 的介质。 最后应说明的是: 以上各实施例仅用以说明本发明的技术方案, 而非对 其限制; 尽管参照前述各实施例对本发明进行了详细的说明, 本领域的普通 技术人员应当理解: 其依然可以对前述各实施例所记载的技术方案进行修改, 或者对其中部分或者全部技术特征进行等同替换; 而这些修改或者替换, 并 不使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims

权 利 要 求 书
1、 一种移动终端, 其特征在于, 包括:
发送模块, 用于在接收到动态自适应媒体服务器发送的媒体表示描述文 件后, 向第一基站发送用于获取移动终端对应的传输能力信息的请求;
接收模块, 用于接收所述第一基站返回的所述移动终端对应的传输能力 信息;
处理模块, 用于在所述媒体表示描述文件中选择与所述传输能力信息相 匹配的首次流媒体分段;
所述发送模块还用于向所述动态自适应媒体服务器发送对所述首次流媒 体分段的申请。
2、 根据权利要求 1所述的移动终端, 其特征在于, 所述接收模块, 具体 用于:
接收所述第一基站发送的、 所述第一基站对所述移动终端进行传输能力 估计而获得的所述传输能力信息; 或
接收所述第一基站转发的、 来自于第二基站的所述传输能力信息; 其中, 所述移动终端要由所述第一基站切换至所述第二基站, 所述传输能力信息是 所述第二基站对所述移动终端进行传输能力估计而获得的。
3、 一种第一基站, 其特征在于, 包括:
接收模块, 用于接收移动终端在接收到动态自适应媒体服务器发送的媒 体表示描述文件后发送的用于获取所述移动终端对应的传输能力信息的请 求;
发送模块, 用于向所述移动终端返回所述移动终端对应的传输能力信息, 以供所述移动终端在所述媒体表示描述文件中选择与所述传输能力信息相匹 配的首次流媒体分段, 并向所述动态自适应媒体服务器发送对所述首次流媒 体分段的申请。
4、 根据权利要求 3所述的第一基站, 其特征在于, 还包括:
处理模块, 用于对所述移动终端进行传输能力估计获得所述传输能力信 息, 所述发送模块还用于发送所述传输能力信息给所述移动终端; 或
所述接收模块用于接收第二基站发送的所述传输能力信息, 对应的, 所 述发送模块用于发送所述传输能力信息给所述移动终端; 其中, 所述移动终 端要由所述第一基站切换至所述第二基站, 所述传输能力信息是所述第二基 站对所述移动终端进行传输能力估计而获得的。
5、 一种移动终端, 其特征在于, 包括:
发送模块, 用于在接收到动态自适应媒体服务器发送的媒体表示描述文 件后, 向第一基站发送所述媒体表示描述文件;
接收模块, 用于接收所述第一基站返回的首次流媒体分段的描述信息, 所述首次流媒体分段是在所述媒体表示描述文件中选择的、 与移动终端对应 的传输能力信息相匹配的流媒体分段;
所述发送模块, 还用于向所述动态自适应媒体服务器发送对所述首次流 媒体分段的申请。
6、 根据权利要求 5所述的移动终端, 其特征在于, 所述接收模块具体用 于:
接收所述第一基站发送的首次流媒体分段的描述信息, 其中, 所述首次 流媒体分段是由所述第一基站在所述媒体表示描述文件中选择的、 与所述移 动终端对应的传输能力信息相匹配的流媒体分段; 所述传输能力信息是所述 第一基站对所述移动终端进行传输能力估计而获得的;
接收所述第一基站转发的、 来自于第二基站的首次流媒体分段的描述信 息; 其中, 所述首次流媒体分段是由所述第二基站在所述媒体表示描述文件 中选择的、 与所述移动终端对应的传输能力信息相匹配的流媒体分段; 所述 移动终端要由所述第一基站切换至所述第二基站, 所述传输能力信息是所述 第二基站对所述移动终端进行传输能力估计而获得的。
7、 一种第一基站, 其特征在于, 包括:
接收模块, 用于接收移动终端在接收到动态自适应媒体服务器发送的媒 体表示描述文件后发送的所述媒体表示描述文件;
发送模块, 用于向所述移动终端返回首次流媒体分段的描述信息, 以供 所述移动终端向所述动态自适应媒体服务器发送对所述首次流媒体分段的申 请; 其中, 所述首次流媒体分段是在所述媒体表示描述文件中选择的、 与所 述移动终端对应的传输能力信息相匹配的流媒体分段。
8、 根据权利要求 7所述的方法, 其特征在于, 所述发送模块用于向所述 移动终端返回首次流媒体分段的描述信息; 其中, 所述首次流媒体分段是由 所述第一基站在所述媒体表示描述文件中选择的、 与所述移动终端对应的传 输能力信息相匹配的流媒体分段; 所述传输能力信息是所述第一基站对所述 移动终端进行传输能力估计而获得的; 或
所述接收模块, 用于接收第二基站发送的首次流媒体分段的描述信息, 对应的, 所述发送模块, 用于发送所述首次流媒体分段的描述信息给所述移 动终端; 其中, 所述首次流媒体分段是由所述第二基站在所述媒体表示描述 文件中选择的、 与所述移动终端对应的传输能力信息相匹配的流媒体分段; 所述移动终端要由所述第一基站切换至所述第二基站, 所述传输能力信息是 所述第二基站对所述移动终端进行传输能力估计而获得的, 所述媒体表示描 述文件是所述第一基站转发给所述第二基站的。
9、 一种流媒体分段获取方法, 其特征在于, 包括:
移动终端在接收到动态自适应媒体服务器发送的媒体表示描述文件后, 向第一基站发送用于获取所述移动终端对应的传输能力信息的请求;
所述移动终端接收所述第一基站返回的所述移动终端对应的传输能力信 息;
所述移动终端在所述媒体表示描述文件中选择与所述传输能力信息相匹 配的首次流媒体分段, 并向所述动态自适应媒体服务器发送对所述首次流媒 体分段的申请。
10、 根据权利要求 9所述的方法, 其特征在于, 所述移动终端接收所述 第一基站返回的所述移动终端对应的传输能力信息包括:
所述移动终端接收所述第一基站发送的、 所述第一基站对所述移动终端 进行传输能力估计而获得的所述传输能力信息; 或
所述移动终端接收所述第一基站转发的、 来自于第二基站的所述传输能 力信息; 其中, 所述移动终端要由所述第一基站切换至所述第二基站, 所述 传输能力信息是所述第二基站对所述移动终端进行传输能力估计而获得的。
11、 一种流媒体分段获取方法, 其特征在于, 包括:
第一基站接收移动终端在接收到动态自适应媒体服务器发送的媒体表示 描述文件后发送的用于获取所述移动终端对应的传输能力信息的请求;
所述第一基站向所述移动终端返回对应的传输能力信息, 以供所述移动 终端在所述媒体表示描述文件中选择与所述传输能力信息相匹配的首次流媒 体分段, 并向所述动态自适应媒体服务器发送对所述首次流媒体分段的申请。
12、 根据权利要求 11所述的方法, 其特征在于, 所述第一基站向所述移 动终端返回对应的传输能力信息包括:
所述第一基站对所述移动终端进行传输能力估计获得所述传输能力信 息, 并发送给所述移动终端; 或
所述第一基站接收第二基站发送的所述传输能力信息, 并发送给所述移 动终端; 其中, 所述移动终端要由所述第一基站切换至所述第二基站, 所述 传输能力信息是所述第二基站对所述移动终端进行传输能力估计而获得的。
13、 一种流媒体分段获取方法, 其特征在于, 包括:
移动终端在接收到动态自适应媒体服务器发送的媒体表示描述文件后, 向第一基站发送所述媒体表示描述文件;
所述移动终端接收所述第一基站返回的首次流媒体分段的描述信息, 所 述首次流媒体分段是在所述媒体表示描述文件中选择的、 与所述移动终端对 应的传输能力信息相匹配的流媒体分段;
所述移动终端向所述动态自适应媒体服务器发送对所述首次流媒体分段 的申请。
14、 根据权利要求 13所述的方法, 其特征在于, 所述移动终端接收所述 第一基站返回的首次流媒体分段的描述信息包括:
所述移动终端接收所述第一基站发送的首次流媒体分段的描述信息, 其 中, 所述首次流媒体分段是由所述第一基站在所述媒体表示描述文件中选择 的、 与所述移动终端对应的传输能力信息相匹配的流媒体分段; 所述传输能 力信息是所述第一基站对所述移动终端进行传输能力估计而获得的;
所述移动终端接收所述第一基站转发的、 来自于第二基站的首次流媒体 分段的描述信息; 其中, 所述首次流媒体分段是由所述第二基站在所述媒体 表示描述文件中选择的、 与所述移动终端对应的传输能力信息相匹配的流媒 体分段; 所述移动终端要由所述第一基站切换至所述第二基站, 所述传输能 力信息是所述第二基站对所述移动终端进行传输能力估计而获得的。
15、 一种流媒体分段获取方法, 其特征在于, 包括:
第一基站接收移动终端在接收到动态自适应媒体服务器发送的媒体表示 描述文件后发送的所述媒体表示描述文件;
所述第一基站向所述移动终端返回首次流媒体分段的描述信息, 以供所 述移动终端向所述动态自适应媒体服务器发送对所述首次流媒体分段的申 请; 其中, 所述首次流媒体分段是在所述媒体表示描述文件中选择的、 与所 述移动终端对应的传输能力信息相匹配的流媒体分段。
16、 根据权利要求 15所述的方法, 其特征在于, 所述第一基站向所述移 动终端返回首次流媒体分段的描述信息包括:
所述第一基站向所述移动终端返回首次流媒体分段的描述信息; 其中, 所述首次流媒体分段是由所述第一基站在所述媒体表示描述文件中选择的、 与所述移动终端对应的传输能力信息相匹配的流媒体分段; 所述传输能力信 息是所述第一基站对所述移动终端进行传输能力估计而获得的; 或
所述第一基站接收第二基站发送的首次流媒体分段的描述信息, 并发送 给所述移动终端; 其中, 所述首次流媒体分段是由所述第二基站在所述媒体 表示描述文件中选择的、 与所述移动终端对应的传输能力信息相匹配的流媒 体分段; 所述移动终端要由所述第一基站切换至所述第二基站, 所述传输能 力信息是所述第二基站对所述移动终端进行传输能力估计而获得的, 所述媒 体表示描述文件是所述第一基站转发给所述第二基站的。
17、 一种移动终端设备, 其特征在于, 包括:
处理器和存储器, 所述存储器存储执行指令, 当所述移动终端设备运行 时, 所述处理器与所述存储器之间通信, 所述处理器执行所述执行指令使得 所述移动终端设备执行如权利要求 9至 10或 13至 14任一项所述的方法。
18、 一种基站设备, 其特征在于, 包括:
处理器和存储器, 所述存储器存储执行指令, 当所述基站设备运行时, 所述处理器与所述存储器之间通信, 所述处理器执行所述执行指令使得所述 基站设备执行如权利要求 11至 12或 15至 16任一项所述的方法。
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