WO2015077989A1 - 面向用户体验质量的移动视频业务反馈方法、装置和设备 - Google Patents

面向用户体验质量的移动视频业务反馈方法、装置和设备 Download PDF

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Publication number
WO2015077989A1
WO2015077989A1 PCT/CN2013/088181 CN2013088181W WO2015077989A1 WO 2015077989 A1 WO2015077989 A1 WO 2015077989A1 CN 2013088181 W CN2013088181 W CN 2013088181W WO 2015077989 A1 WO2015077989 A1 WO 2015077989A1
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WO
WIPO (PCT)
Prior art keywords
terminal
base station
video resource
video
capacity
Prior art date
Application number
PCT/CN2013/088181
Other languages
English (en)
French (fr)
Inventor
李娜
韩广林
费泽松
白伟
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 CN201380003092.2A priority Critical patent/CN105264790B/zh
Priority to PCT/CN2013/088181 priority patent/WO2015077989A1/zh
Publication of WO2015077989A1 publication Critical patent/WO2015077989A1/zh

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Classifications

    • 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
    • H04L65/80Responding to QoS
    • 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
    • H04L65/61Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio
    • H04L65/613Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio for the control of the source by the destination
    • 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

  • the present invention relates to communication technologies, and in particular, to a mobile video service feedback method, apparatus and device for user experience quality. Background technique
  • QoE quality of experience
  • the average bandwidth requirement is 3 Mbps.
  • both scheduling and data transmission are performed by the base station.
  • the base station downlink scheduler makes a scheduling decision according to the amount of buffered data on the base station side, the QoS requirement of the user, the fairness, and the feedback channel measurement report.
  • the base station sends the scheduling result to each related user through control signaling and sends the downlink according to the scheduling result.
  • Data; the scheduled user receives the downlink data on the resource block specified by the scheduling signaling with a specified modulation and coding scheme and an antenna selection scheme.
  • how to protect the QoE of the end user and effectively avoid the buffer overflow of the terminal is an urgent problem to be solved in the current mobile video service.
  • the base station sends the media presentation data to the client device, and the client device calculates the QoE metric value according to the received media presentation data, and periodically reports the QoE metric value to the base station, so that the base station learns the current user. QoE when receiving downlink data.
  • the prior art base station may easily cause a buffer overflow of the terminal when transmitting data to the terminal, thereby affecting the QoE of the user.
  • the embodiments of the present invention provide a mobile video service feedback method, apparatus, and device for user experience quality, which are used to solve the problem that the base station may overflow the buffer of the terminal when the base station sends data to the terminal in the prior art, and affect the QoE of the user. problem.
  • a first aspect of the embodiments of the present invention provides a mobile video service feedback method for user experience quality, including:
  • the terminal stores the first video resource in the available buffer
  • the terminal feeds back the capacity of the available buffer to the base station, and discards the first video resource, so that the base station according to the capacity of the available buffer
  • the terminal sends the second video resource.
  • the method before the receiving, by the terminal, the first video resource sent by the base station, the method further includes:
  • the terminal sends a video resource request message to the base station, where the video resource request message carries a measurement value of a user experience quality QoE indicator, and the measured value of the QoE indicator is a set of one or more measured values;
  • the receiving, by the terminal, the first video resource sent by the base station including:
  • the terminal Receiving, by the terminal, a response message that is sent by the base station according to the measured value of the QoE indicator, where the response message includes the first video resource that is sent by the base station to the terminal, and the base station is the a downlink resource that is allocated by the terminal to receive the first video resource, and an uplink resource that is allocated by the base station to the terminal and that feeds back the capacity of the available buffer to the base station.
  • the receiving, by the terminal, the capacity of the available buffer to the base station includes:
  • the measured value of the QoE indicator includes r 3 ⁇ 4 ( 0, and a ⁇ (0 ;
  • the time is the size of the first video data packet in the video resource received by the terminal, and the terminal determines, according to the measured value of the QoE indicator, the maximum rate at which the terminal receives the first video resource, including :
  • the P is the number of the last video data packets in the video resource received by the terminal; the terminal according to the source rate of the first video resource sent by the base station Determining a maximum rate at which the terminal receives the first video resource.
  • the terminal determines, according to a current video play mode, a maximum of the first video resource that is received by the terminal
  • the level of representation corresponding to the rate including:
  • the receiving, by the terminal, the capacity of the available buffer to the base station includes:
  • the terminal Feeding back, by the PUSCH resource, the capacity of the available buffer to the base station;
  • the terminal feeds back the capacity of the available buffer to the base station by physically uplinking a control channel PUCCH resource.
  • a second aspect of the embodiments of the present invention provides a mobile video service feedback method for user experience quality, including:
  • the base station sends the first video resource to the terminal
  • the base station sends a second video resource to the terminal according to the available buffer capacity.
  • the method before the sending, by the base station, the first video resource to the terminal, the method further includes:
  • the base station sends a response message to the terminal according to the measured value of the QoE indicator, where the response message includes the first video resource that is sent by the base station to the terminal, and the base station is the terminal.
  • the allocated downlink resource that receives the first video resource and the uplink resource that the base station allocates to the terminal to feed back the capacity of the available buffer to the base station.
  • the receiving, by the base station, the capacity of the available buffer of the terminal that is sent by the terminal includes:
  • a third aspect of the embodiments of the present invention provides a mobile video service feedback device for user experience quality, including:
  • a receiving comparison module configured to receive a first video resource sent by the base station, and perform a comparison operation on the size of the first video resource and the available buffer of the device, to obtain a comparison result; Determining a module, including a feedback unit and a storage unit;
  • the storage unit is configured to store the first video resource in the available buffer
  • the feedback unit is configured to feed back the capacity of the available buffer to the base station, and discard the first video resource, so that the base station according to the capacity of the available buffer Delivering a second video resource to the device;
  • the receiving and comparing module is further configured to receive the second video resource, and return the capacity of the second video resource as a new first video resource to an available buffer of the terminal, to perform the comparing operation, until The comparison result is not greater than.
  • the device further includes:
  • a sending module configured to send a video resource request message to the base station, where the receiving the comparison module receives the first video resource sent by the base station, where the video resource request message carries the measured value of the user experience quality QoE indicator,
  • the measured value of the QoE indicator is a set of one or more measured values
  • the receiving and comparing module is configured to receive a response message that is sent by the base station according to the measured value of the QoE indicator, where the response message includes the first video resource that is sent by the base station to the device. And a downlink resource that is allocated by the base station to the device to receive the first video resource, and an uplink resource that is allocated by the base station to the device and that feeds back the capacity of the available buffer to the base station.
  • the feedback unit is configured to determine, according to the measured value of the QoE indicator, that the device receives the a maximum rate of a video resource; determining, according to a current video play mode, a representation level corresponding to a maximum rate at which the apparatus receives the first video resource; transmitting the representation level to the base station, so that the base station is configured according to the base station
  • the representation level knows the size of the available buffer.
  • the measured value of the QoE indicator includes r fc3 ⁇ 4 ( 0, and ⁇ (0; wherein, ⁇ (0 For the moment when the second video data packet in the video resource received by the device enters the user queue, ⁇ ⁇ (0 is the first video number in the video resource received by the device The time of the packet entering the server queue is the size of the first video data packet in the video resource received by the device.
  • the feedback unit is specifically used according to the formula, wherein the p is the device.
  • the feedback unit is specifically configured to: if the base station allocates a physical uplink shared channel PUSCH resource to the device, The feedback unit feeds back the capacity of the available buffer to the base station by using the PUSCH resource; if the base station does not allocate the PUSCH resource to the device, the feedback unit passes the physical uplink control channel PUCCH resource.
  • the fourth aspect of the embodiments of the present invention provides a mobile video service feedback device for user experience quality, including:
  • a first sending module configured to send the first video resource to the terminal
  • a first receiving module configured to receive a capacity of the available buffer of the terminal that is fed back by the terminal
  • a second sending module configured to send, to the terminal, a second video resource according to the available buffer capacity
  • the device further includes:
  • a second receiving module configured to receive a video resource request message sent by the terminal, where the first sending module sends the first video resource to the terminal, where the video resource request message carries A measurement value with a user experience quality QoE indicator, the measured value of the QoE being a set of one or more measured values;
  • the first sending module is configured to send a response message to the terminal according to the measured value of the QoE indicator, where the response message includes the first video resource that is sent by the device to the terminal. And the uplink resource allocated by the device to the terminal to receive the first video resource, and the uplink resource allocated by the device to the terminal to feed back the capacity of the available buffer to the base station.
  • the first receiving module includes:
  • a receiving unit configured to receive, according to a current video playing mode of the terminal, a representation level corresponding to a maximum rate at which the terminal receives the first video resource, where the terminal receives the first
  • the maximum rate of the video resource is determined by the terminal according to the measured value of the QoE indicator
  • a determining unit configured to learn, according to the representation level, a capacity size of an available buffer of the terminal.
  • a fifth aspect of the embodiments of the present invention provides a mobile video service feedback device for user experience quality, including:
  • a receiver configured to receive a first video resource sent by the base station
  • a processor configured to perform a comparison operation on the size of the first video resource and the available buffer of the device, to obtain a comparison result, and to be used to: if the comparison result is not greater than, the first video And storing the resource into the available buffer; and if the comparison result is greater than, reporting the capacity of the available buffer to the base station, and discarding the first video resource, so that the base station is configured according to the Transmitting a second video resource to the device by using the capacity of the available buffer;
  • the receiver is further configured to receive the second video resource, where the processor is further configured to return the second video resource as a new first video resource and a capacity of the available buffer of the terminal to the execution center.
  • the comparison operation is performed until the comparison result is not greater than.
  • the device further includes:
  • a transmitter configured to send a video resource request message to the base station, where the video resource request message carries a measurement value of a user experience quality QoE indicator, and the measured value of the QoE indicator is a collection of one or more measured values;
  • the receiver is specifically configured to receive a response message that is sent by the base station according to the measured value of the QoE indicator, where the response message includes the first video resource that is sent by the base station to the device. Determining, by the base station, a downlink resource that is used by the device to receive the first video resource, and an uplink resource that is allocated by the base station to the device and that feeds back the capacity of the available buffer to the base station.
  • the processor is configured to determine, according to the measured value of the QoE indicator, that the device receives the a maximum rate of a video resource; determining, according to a current video play mode, a representation level corresponding to a maximum rate at which the device receives the first video resource; transmitting the representation level to the base station, so that the base station is configured according to The representation level knows the size of the available buffer.
  • the measured value of the QoE indicator includes r fc3 ⁇ 4 ( 0, and ⁇ (0; wherein, ⁇ (0 For the moment when the second video data packet in the video resource received by the device enters the user queue, 7) (0 is the first video data packet in the video resource received by the device to enter the server queue. Time, the size of the first video data packet in the video resource received by the device for the previous time; then the processor is specifically used according to the formula
  • 3 ⁇ 4 computes the link throughput, wherein the P is the number of the last video data packets in the video resource received by the device before the corpse; and the method is delivered according to the base station a source rate of a video resource and a maximum rate at which the device receives the first video resource.
  • the processor is specifically configured to: if the base station allocates a physical uplink shared channel PUSCH resource to the device, The processor feeds back the capacity of the available buffer to the base station by using the PUSCH resource; if the base station does not allocate the PUSCH resource to the device, the processor passes the physical uplink control channel PUCCH resource.
  • the sixth aspect of the present invention provides a mobile video service feedback device for user experience quality, including:
  • a transmitter configured to send a first video resource to the terminal
  • a receiver configured to receive a capacity of an available buffer of the terminal that is fed back by the terminal, where the transmitter is further configured to send a second video resource to the terminal according to the available buffer capacity.
  • the receiver is further configured to receive a video resource request message that is sent by the terminal, where the video resource request message carries a user experience quality
  • the measured value of the QoE indicator where the measured value of the QoE is a set of one or more measured values
  • the transmitter is specifically configured to send a response message to the terminal according to the measured value of the QoE indicator, where the response message includes the first video resource that is sent by the device to the terminal.
  • the device is a downlink resource that is allocated by the terminal to receive the first video resource, and an uplink resource that is allocated by the device to the terminal and that feeds back the capacity of the available buffer to the base station.
  • the receiver is specifically configured to receive, by the terminal, according to a current video play mode of the terminal a representation level corresponding to the maximum rate at which the terminal receives the first video resource; wherein, the maximum rate at which the terminal receives the first video resource is determined by the terminal according to the measured value of the QoE indicator;
  • the user-quality quality-oriented mobile video service feedback method, device, and device according to the embodiment of the present invention, which is configured to receive the available buffer of the terminal, and the terminal receives the first video resource and the terminal delivered by the base station.
  • the size of the available buffers is compared to obtain a comparison result; and the size of the first video resource delivered by the base station is larger than the terminal.
  • the capacity of the available buffer is used, the capacity of the available buffer is reported to the base station, so that the base station can determine the video resource of the appropriate size to be sent to the terminal according to the capacity of the available buffer, thereby effectively preventing the base station from sending a large amount of downlink data.
  • the buffer of the terminal overflows, thereby improving the quality of the user's experience.
  • FIG. 1 is a flowchart of Embodiment 1 of a mobile video service feedback method for user experience quality provided by the present invention
  • Embodiment 2 is a flowchart of Embodiment 2 of a mobile video service feedback method for user experience quality provided by the present invention
  • Embodiment 3 is a flowchart of Embodiment 3 of a mobile video service feedback method for user experience quality provided by the present invention
  • Embodiment 4 is a flowchart of Embodiment 4 of a mobile video service feedback method for user experience quality provided by the present invention
  • Figure 5 is a user-oriented provided by the present invention
  • Figure 6 is a user-oriented provided by the present invention
  • Figure 7 is a user-oriented provided by the present invention.
  • Figure 8 is a user-oriented provided by the present invention
  • FIG. 9 is a schematic structural diagram of Embodiment 1 of a mobile video service feedback device for user experience quality provided by the present invention.
  • FIG. 10 is a schematic diagram of a mobile video service feedback device for user experience quality provided by the present invention. a schematic diagram of the structure of the second;
  • FIG. 11 is a schematic structural diagram of Embodiment 3 of a mobile video service feedback device for user experience quality according to the present invention.
  • the technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention.
  • the embodiments are a part of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
  • the terminal involved in the present application may be a wireless terminal or a wired terminal, and the wireless terminal may be a device that provides voice and/or data connectivity to the user, a handheld device with wireless connection function, or is connected to Other processing devices for wireless modems.
  • the wireless terminal can communicate with one or more core networks via a radio access network (eg, RAN, Radio Access Network), which can be a mobile terminal, such as a mobile phone (or "cellular" phone) and with a mobile terminal Computers, for example, can be portable, pocket, handheld, computer built-in or in-vehicle mobile devices that exchange language and/or data with the wireless access network.
  • a radio access network eg, RAN, Radio Access Network
  • a mobile terminal such as a mobile phone (or "cellular" phone)
  • Computers for example, can be portable, pocket, handheld, computer built-in or in-vehicle mobile devices that exchange language and/or data with the wireless access network.
  • a wireless terminal may also be called a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, or an access point.
  • Remote Terminal Access Terminal, User Terminal, User Agent, User Device, or User Equipment.
  • a base station as referred to in this application may refer to a device in an access network that communicates with a wireless terminal over one or more sectors over an air interface.
  • the base station can be used to convert the received air frame to the IP packet as a router between the wireless terminal and the rest of the access network, wherein the remainder of the access network can include an Internet Protocol (IP) network.
  • IP Internet Protocol
  • the base station can also coordinate the genus of the air interface Sexual management.
  • the base station may be a base station (BTS, Base Transceiver Station) in GSM or CDMA, or may be a base station (NodeB) in WCDMA, or may be an evolved base station in LTE (NodeB or eNB or e-NodeB, evolutional Node B), this application is not limited.
  • FIG. 1 is a flowchart of Embodiment 1 of a mobile video service feedback method for user experience quality provided by the present invention. As shown in FIG. 1, the method includes the following steps:
  • the terminal receives the first video resource sent by the base station, and performs a comparison operation on the size of the first video resource and the available buffer of the terminal to obtain a comparison result.
  • the base station sends the first video resource to the terminal, where the first video resource may be a video segment or a video clip.
  • the terminal receives the first video resource, and compares the size of the first video resource with the capacity of the available buffer of the terminal to determine a comparison result. It should be noted here that the first video resource received by the terminal has not been stored in the available buffer of the terminal.
  • the terminal determines, according to the comparison result, whether to store the first video resource in the available buffer; if the comparison result is not greater, the terminal stores the first video resource in an available buffer; if the comparison result is greater than, the terminal sends the The base station feeds back the capacity of the available buffer, and discards the first video resource, so that the base station sends the second video resource to the terminal according to the capacity of the available buffer; the terminal receives the second video resource, and uses the second video resource as the new one.
  • the capacity of a video resource and the available buffer of the terminal is returned to perform a comparison operation until the comparison result is not greater than.
  • the terminal determines that the size of the first video resource is greater than the capacity of the available buffer of the terminal, it indicates that if the terminal directly stores the first video resource in the available buffer, the buffer of the terminal overflows, affecting the user. QoE. Therefore, in order to receive the video resources that the buffer can store, the terminal feeds back the capacity of the available buffer to the base station, and discards the first video resource that is larger than the capacity of the available buffer. It is noted that the terminal can feed back the capacity of the available buffer to the base station in multiple manners, for example, the terminal can inform the base station terminal of the available buffer size by the buffer level, and can also receive the maximum of the first video resource through the terminal.
  • the representation level corresponding to the rate informs the base station terminal of the available buffer size, and can also directly inform the base station terminal of the available buffer size in the form of bytes, and can also inform the relative value of the available buffer to the total buffer capacity.
  • the size of the available buffer of the base station terminal is not limited in this embodiment of the present invention.
  • the base station learns the available buffer of the terminal.
  • the capacity of the second video resource is delivered to the terminal according to the capacity of the available buffer.
  • the second video resource is the same as the content of the first video resource, but is smaller than the first video resource.
  • the second video resource may be the compression of the first video resource, or by reducing the second video resource.
  • the resolution is such that the second video resource size is no larger than the first video resource.
  • the terminal receives the second video resource delivered by the base station, and compares the second video resource with the capacity of the available buffer of the terminal as the new first video resource. If the comparison result is still greater than the capacity of the available buffer, Then, the terminal continues to feed back the capacity of the current available buffer to the base station, so that the base station sends the video resource again according to the capacity of the available buffer, until the video resource size sent by the base station is not greater than the capacity of the available buffer of the terminal.
  • the terminal When the terminal receives the first video resource size sent by the base station is not greater than the capacity of the available buffer of the terminal, the terminal directly stores the first video resource to the available buffer.
  • the terminal compares the size of the first video resource sent by the base station with the available buffer of the terminal, and obtains a comparison result;
  • the base station can report the capacity of the available buffer to the base station, so that the base station can determine the video resource of the appropriate size and send it to the terminal according to the capacity of the available buffer, thereby effectively avoiding
  • the base station sends a large amount of downlink data to the terminal, the buffer overflow of the terminal is caused, thereby improving the quality of the user experience.
  • FIG. 2 is a flowchart of Embodiment 2 of a mobile video service feedback method for user experience quality provided by the present invention.
  • the method in this embodiment is that the terminal sends a video resource request message to the base station, so that the base station sends the first video resource to the terminal, and the terminal compares the size of the received first video resource with the available buffer size of the terminal, and then The specific process by which the base station feeds back the capacity of the available buffer.
  • the method specifically includes the following steps:
  • the terminal sends a video resource request message to the base station, where the video resource request message carries the measured value of the user QoE indicator, and the measured value of the QoE indicator is one or more measured values.
  • the base station when the base station sends the first video resource, if the base station wants to know the QoE of the user on the terminal side, the base station sends a QoE indicator to the terminal, and the terminal calculates the measured value of the QoE indicator according to the relevant parameter and sends the measured value to the base station, so that the base station according to the QoE
  • the measured value of the indicator knows the quality of the experience when the user receives the video resource last time and the QoE demand when the user receives the first video resource this time.
  • the measurement of the QoE indicator here
  • the value can be one or more, that is, the QoE indicator measurement value can be the re-buffer percentage, or the time T download (i) of the user queue that receives the video data packet in the video resource and enters the terminal buffer. It may be the time r fc3 ⁇ 4 (o, which may also be request/response processing, switching event, average throughput, initial playback delay, buffer level, playlist, media) when the video data packet in the video resource is received into the server queue of the base station buffer.
  • the information Media Presentation Description, hereinafter referred to as MPD) information and the like are not limited in the embodiment of the present invention.
  • the terminal receives a response message sent by the base station according to the measured value of the QoE indicator, where the response message includes a first video resource that is sent by the base station to the terminal, a downlink resource that the base station allocates to the terminal, and a base station that receives the first video resource, and a base station.
  • An uplink resource allocated to the terminal for feeding back the capacity of the available buffer to the base station.
  • the base station After receiving the measured value of the QoE indicator sent by the terminal, the base station checks whether the user profile and the network operation policy rule preset by the base station are met according to the measured value of the QoE indicator, and sends a response to the terminal according to the check result.
  • the response message includes: a first video resource that is sent by the base station to the terminal, a downlink resource that the base station allocates for the terminal to receive the first video resource, and an uplink resource that is allocated by the base station to the terminal and that feeds back the capacity of the available buffer to the base station.
  • the terminal determines, according to the comparison result, whether to store the first video resource in the available buffer; if the comparison result is not greater, the terminal stores the first video resource in an available buffer; if the comparison result is greater than, the terminal sends the The base station feeds back the capacity of the available buffer, and discards the first video resource, so that the base station sends the second video resource to the terminal according to the capacity of the available buffer; the terminal receives the second video resource, and uses the second video resource as the new one.
  • the capacity of a video resource and the available buffer of the terminal is returned to perform a comparison operation until the comparison result is not greater than.
  • the terminal receives the first video resource sent by the base station on the downlink resource allocated by the base station, compares the size of the first video resource with the capacity of the available buffer of the terminal, obtains a comparison result, and determines a direction according to the comparison result.
  • the capacity of the available buffer of the base station feedback terminal is also directly stored to the first video resource to the available buffer of the terminal.
  • the terminal feeds back the capacity of the available buffer to the base station, it is triggered by the terminal itself, that is, the feedback period is controlled by itself, and the waste of uplink resources is also avoided.
  • the size ratio of the first video resource delivered by the base station to the available buffer of the terminal is compared by the terminal And obtaining a comparison result; and when the size of the first video resource sent by the base station is greater than the capacity of the available buffer of the terminal, reporting the capacity of the available buffer to the base station, so that the base station can determine the capacity of the available buffer.
  • a video resource of a suitable size is sent to the terminal, which effectively avoids buffer overflow of the terminal when the base station sends a large amount of downlink data to the terminal, thereby improving the quality of the user experience.
  • the method in this embodiment is that the terminal determines the level of representation in different play modes, and sends the representation level to the base station. So that the base station knows the capacity of the current available buffer of the terminal according to the representation level. Further, the terminal, feeding back the capacity of the available buffer to the base station, includes: determining, by the terminal, the maximum rate of receiving the first video resource by the terminal according to the measured value of the QoE indicator; and determining, according to the current video play mode, receiving the terminal a representation level corresponding to a maximum rate of the first video resource; and sending the representation level to the base station, so that the base station learns the capacity size of the available buffer according to the representation level.
  • the terminal determines the maximum rate of receiving the first video resource that it supports according to the measured value of the measured QoE indicator.
  • the measured value of the QoE indicator includes r fc3 ⁇ 4 ( ), ⁇ (0 and . . . (0)
  • the terminal can calculate the maximum rate of receiving the first video resource according to the measured value of the QoE indicator, specifically:
  • the terminal determines which link throughput corpse l) Shang, P is the number of the video terminal a resource before ⁇ received video data packets; U is a front terminal receiving a video
  • the first video packet in the resource enters the user queue, it is 1 J
  • r fc3 ⁇ 4 o is the moment when the first video packet in the video resource received by the terminal enters the server queue, £te (0 is the terminal before The size of the first video packet in the received video resource.
  • the user queue here refers to the queue formed by the video packet entering the terminal buffer, and the server queue refers to the video packet that enters the buffer of the base station.
  • T download ( ) - T fetch ( ) is the first packet in the video resource received by the terminal from the base station The transmission time to the terminal. After the terminal determines the R t , the terminal matches the source rate of the first video resource sent by the base station, so as to determine the maximum rate at which the terminal receives the first video resource. It should be noted that the base station can notify the terminal to deliver the source rate of the first video resource by means of broadcast or multicast.
  • the terminal determines the representation level according to the current video play mode, and notifies the base station of the representation level, so that the base station knows the capacity of the available buffer of the terminal, where the representation level can be For the expression of the rate. Specifically, the terminal determines the representation level according to the current video play mode into two cases:
  • the terminal feeds back the capacity of the available buffer to the base station through the PUSCH resource;
  • the terminal feeds back the capacity of the available buffer to the base station through the Physical Uplink Control Channel (PUCCH) resource.
  • PUCCH Physical Uplink Control Channel
  • the terminal compares the size of the first video resource sent by the base station with the available buffer of the terminal, and obtains a comparison result;
  • the base station can report the capacity of the available buffer to the base station, so that the base station can determine the video resource of the appropriate size and send it to the terminal according to the capacity of the available buffer, thereby effectively avoiding
  • the base station sends a large amount of downlink data to the terminal, the buffer overflow of the terminal is caused, thereby improving the quality of the user experience.
  • FIG. 3 is a schematic flowchart diagram of Embodiment 3 of a mobile video service feedback method for user experience quality provided by the present invention. As shown in FIG. 3, the method includes the following steps:
  • the base station sends the first video resource to the terminal. Specifically, the base station sends the first video resource to the terminal, where the first video resource may be a video segment or a video clip. After receiving the first video resource, the terminal compares the size of the first video resource with the capacity of the available buffer of the terminal to determine a comparison result. It should be noted here that the first video resource sent by the base station is not yet stored in the available buffer of the terminal.
  • S302 The base station receives the capacity of the available buffer of the terminal fed back by the terminal.
  • S303 The base station sends the second video resource to the terminal according to the available buffer capacity.
  • the terminal determines that the size of the first video resource is greater than the capacity of the available buffer of the terminal, it indicates that if the terminal directly stores the first video resource in the available buffer, the buffer of the terminal overflows, affecting the user. QoE. Therefore, in order to receive the video resources that the buffer can store, the terminal feeds back the capacity of the available buffer to the base station, and discards the first video resource that is larger than the capacity of the available buffer. It is noted that the terminal can feed back the capacity of the available buffer to the base station in multiple manners, for example, the terminal can inform the base station terminal of the available buffer size by the buffer level, and can also receive the maximum of the first video resource through the terminal.
  • the representation level corresponding to the rate informs the base station terminal of the available buffer size, and can also directly inform the base station terminal of the available buffer size in the form of bytes, and can also inform the relative value of the available buffer to the total buffer capacity.
  • the size of the available buffer of the base station terminal is not limited in this embodiment of the present invention.
  • the base station After receiving the capacity of the available buffer that is fed back by the terminal, the base station learns the capacity of the available buffer of the terminal, and then sends the second video resource to the terminal according to the capacity of the available buffer.
  • the second video resource is the same as the content of the first video resource, but is smaller than the first video resource.
  • the second video resource may be the compression of the first video resource, or by reducing the second video resource.
  • the resolution is such that the second video resource size is no larger than the first video resource.
  • the terminal receives the second video resource delivered by the base station, and compares the second video resource with the capacity of the available buffer of the terminal as the new first video resource. If the comparison result is still greater than the capacity of the available buffer, Then, the terminal continues to feed back the capacity of the current available buffer to the base station, so that the base station sends the video resource again according to the capacity of the available buffer, until the video resource size sent by the base station is not greater than the capacity of the available buffer of the terminal.
  • the terminal When the terminal receives the first video resource size sent by the base station is not greater than the capacity of the available buffer of the terminal, the terminal directly stores the first video resource to the available buffer.
  • the base station sends the first video resource to the terminal by using the base station, and the terminal compares the capacity of the first video resource with the available buffer of the terminal, and sends the same to the base station.
  • FIG. 4 is a flowchart of Embodiment 4 of the mobile video service feedback method for user experience quality provided by the present invention.
  • the method of the present embodiment is to receive, by the base station, a video resource request message that carries the measurement value of the QoE indicator sent by the terminal, and send a response message carrying the first video resource to the terminal, so that the terminal obtains the available buffer according to the first video resource and the terminal. After comparing the capacity of the area, the specific process of feeding back the capacity of the available buffer to the base station.
  • the method specifically includes the following steps:
  • the base station receives the video resource request message sent by the terminal, where the video resource request message carries the measured value of the user's quality of experience indicator, and the measured value of the quality of experience is a set of one or more measured values.
  • the base station sends the first video resource
  • the base station wants to know the QoE of the terminal user
  • the base station sends the content of the QoE indicator to the terminal
  • the terminal calculates the measured value of the QoE indicator according to the relevant parameter and sends the measured value to the base station, so that the base station according to the QoE
  • the measured value of the indicator knows the quality of the experience when the user received the video last time and the QoE demand when the user receives the first video resource this time.
  • the measured value of the QoE indicator here may be one or more, that is, the QoE indicator may be a re-buffer percentage, or may be a time when the video packet in the video resource is received into the user queue of the terminal buffer.
  • T download (i ) it can also be the time r fc3 ⁇ 4 (o, which can also be request/response processing, switch event, average throughput, initial playback delay, buffer level, playback) when the video data packet in the video resource is received into the server queue of the base station buffer.
  • the embodiment of the present invention does not limit the list, the MPD information, and the like.
  • the base station sends a response message to the terminal according to the measured value of the quality of experience indicator, where the response message includes a first video resource that is sent by the base station to the terminal, a downlink resource that the base station allocates to receive the first video resource, and the base station is the terminal.
  • the allocated uplink resource that feeds back the capacity of the available buffer to the base station.
  • the base station after receiving the measured value of the QoE indicator sent by the terminal, the base station according to the QoE index The measured value of the target is checked to meet the preset user profile and network operation policy rules on the base station side, and the response message is sent to the terminal according to the check result.
  • the response message includes: a first video resource that is sent by the base station to the terminal, a downlink resource that the base station allocates to the terminal for receiving the first video resource, and an uplink resource that is allocated by the base station to the terminal and that feeds back the capacity of the available buffer to the base station.
  • S403 The base station receives the capacity of the available buffer of the terminal fed back by the terminal.
  • S404 The base station sends the second video resource to the terminal according to the available buffer capacity.
  • the terminal compares the size of the first video resource with the capacity of the available buffer of the terminal, and the size of the first video resource is greater than the terminal amount.
  • the capacity of the buffer is available
  • the capacity of the available buffer of the terminal is fed back to the base station;
  • the base station receives the capacity of the available buffer, and delivers the second video resource to the terminal according to the capacity of the available buffer, so that the terminal will deliver the buffer.
  • the second video resource continues to be compared with the capacity of the available buffer of the terminal as the new first video resource, until the video resource size sent by the base station is not greater than the capacity of the available buffer of the terminal.
  • the base station sends the first video resource to the terminal by using the base station, and the terminal compares the capacity of the first video resource with the available buffer of the terminal, and sends the same to the base station.
  • the size of the first video resource is greater than the capacity of the available buffer of the terminal, the size of the available buffer is reported to the base station, so that the base station can determine the video resource of the appropriate size and send the video resource to the terminal according to the capacity of the available buffer, thereby effectively avoiding
  • the base station sends a large amount of downlink data to the terminal, the buffer of the terminal overflows, thereby improving the quality of the user experience.
  • the method in this embodiment is a specific process for the base station to learn the capacity of the available buffer of the terminal by using the representation level reported by the terminal.
  • the receiving, by the base station, the capacity of the available buffer of the terminal, which is sent by the terminal includes: a representation level that the base station receives, according to a current video playing mode of the terminal, corresponding to a maximum rate at which the terminal receives the first video resource; The maximum rate at which the terminal receives the first video resource is determined by the terminal according to the measured value of the QoE indicator; the base station learns the capacity size of the available buffer of the terminal according to the foregoing representation level.
  • the capacity of the available buffer of the terminal may be notified to the base station in multiple forms.
  • the terminal determines the capacity of the available buffer of the current terminal of the base station by determining the level of representation in different video play modes, and the representation level is received by the terminal.
  • Representation of the maximum rate of the first video resource The maximum rate of receiving the first video resource is determined by the terminal according to the measured value of the QoE indicator, specifically: when the measured value of the QoE indicator includes r fc3 ⁇ 4 ( 0, ( 0 and ⁇ (0, the terminal can be based on the The measured value of the QoE indicator calculates the maximum rate of receiving the first video resource, specifically: the terminal first determines the link throughput according to the formula R.
  • P is the number of the last video data packets in the video resource received by the terminal before;
  • U is the time when the first video data packet in the video resource received by the terminal enters the user queue
  • the user queue here) Refers to the queue formed by the video packets entering the terminal buffer.
  • the server queue refers to the queue formed by the video packets entering the buffer of the base station (because the video packets sent to the terminal must first enter the server queue, and then Enter the user queue)
  • T download ( ) - T fetch () is the transmission time of the first packet in the video resource received by the terminal from the base station to the terminal.
  • the terminal After the terminal determines the R t , the terminal matches the source rate of the first video resource sent by the base station with R, so as to determine the maximum rate at which the terminal receives the first video resource. It should be noted that the base station can notify the terminal to deliver the source rate of the first video resource by means of broadcast or multicast.
  • the terminal determines the level of the representation according to the current video play mode, which may be divided into two cases:
  • the terminal If the current video playback mode of the terminal is buffered, the terminal according to the formula - ⁇ , ⁇ :)) determining a second level representing ⁇ 3 ⁇ 4; where, ⁇ is a time when the level prior to the receiving video terminal resource.
  • the base station receives the representation level sent by the terminal, and further knows the capacity of the available buffer of the terminal; Afterwards, the second video resource may be sent to the terminal according to the obtained capacity of the available buffer, so that the terminal can perform the comparison operation again.
  • the base station sends the first video resource to the terminal by using the base station, and the terminal compares the capacity of the first video resource with the available buffer of the terminal, and sends the same to the base station.
  • the size of the first video resource is greater than the capacity of the available buffer of the terminal, the size of the available buffer is reported to the base station, so that the base station can determine the video resource of the appropriate size and send the video resource to the terminal according to the capacity of the available buffer, thereby effectively avoiding
  • the base station sends a large amount of downlink data to the terminal, the buffer overflow of the terminal is caused, thereby improving the user experience.
  • the foregoing program may be stored in a computer readable storage medium, and when executed, the program includes the steps of the foregoing method embodiments; and the foregoing storage medium includes: R0M, RAM, magnetic disk or optical disk, etc.
  • R0M random access memory
  • RAM random access memory
  • magnetic disk or optical disk etc.
  • FIG. 5 is a schematic structural diagram of Embodiment 1 of a mobile video service feedback apparatus for user experience quality according to the present invention.
  • the device can be integrated in the terminal.
  • the apparatus includes: a receiving comparison module 10, configured to receive a first video resource sent by a base station, and perform a comparison operation on the first video resource size and a capacity of an available buffer of the device, to obtain a comparison result; a determination module 11, comprising a feedback unit 111 and a storage unit 112; if the comparison result is not greater than, the storage unit 112 is configured to store the first video resource into the available buffer; If the comparison result is greater than, the feedback unit 111 is configured to feed back the capacity of the available buffer to the base station, and discard the first video resource, so that the base station according to the capacity of the available buffer
  • the device sends a second video resource; the receiving and comparing module 10 is further configured to receive the second video resource, and use the second video resource as a new first video resource and an available buffer of the terminal.
  • the mobile video service feedback device for the user experience quality provided by the embodiment of the present invention may perform the foregoing method embodiments, and the implementation principles and technical effects thereof are similar, and details are not described herein again.
  • FIG. 6 is a schematic structural diagram of Embodiment 2 of a mobile video service feedback apparatus for user experience quality according to the present invention.
  • the device further includes: a sending module 12, configured to send a video to the base station before the receiving and comparing module 10 receives the first video resource sent by the base station a resource request message; wherein, the video resource request cancellation And the measured value of the QoE indicator is a set of one or more measured values; the receiving and comparing module 10 is specifically configured to receive, according to the QoE indicator, the base station according to the QoE indicator.
  • the response message includes the first video resource that is sent by the base station to the device, and the downlink resource that the base station allocates to the device to receive the first video resource. And an uplink resource allocated by the base station to the device to feed back the capacity of the available buffer to the base station.
  • the mobile video service feedback device for the user experience quality provided by the embodiment of the present invention may perform the foregoing method embodiments, and the implementation principles and technical effects thereof are similar, and details are not described herein again.
  • the feedback unit 111 is specifically configured to determine, according to the measured value of the QoE indicator, a maximum rate at which the device receives the first video resource, and determine, according to a current video play mode, the first video to be received by the device.
  • the representation level corresponding to the maximum rate of the resource; sending the representation level to the base station, so that the base station learns the capacity size of the available buffer according to the representation level.
  • the measured value of the QoE indicator includes r fc3 ⁇ 4 ( 0, and ⁇ (0; wherein, 7 ⁇ beau ⁇ (0 is the first video data packet in the video resource received by the device before entering the user queue Time, 7 ⁇ 3 ⁇ 4 (0 is the time when the first video data packet in the video resource received by the device enters the server queue, which is the size of the first video data packet in the video resource received by the device.
  • the feedback unit 111 is specifically configured to determine the link throughput according to the formula 3 ⁇ 4 ⁇ T r , where the P is the last/ ⁇ video data packets in the video resource received by the device before the corpse And determining, according to the source rate of the first video resource, the maximum rate of the device to receive the first video resource.
  • the feedback unit 112 is specifically configured to: if the base station allocates a physical uplink shared channel (PUSCH) resource to the device, the feedback unit feeds back the capacity of the available buffer to the base station by using the PUSCH resource. If the base station does not allocate the PUSCH resource to the device, the feedback unit feeds back the capacity of the available buffer to the base station by using a physical uplink control channel PUCCH resource.
  • PUSCH physical uplink shared channel
  • the mobile video service feedback device for the user experience quality provided by the embodiment of the present invention may perform the foregoing method embodiments, and the implementation principles and technical effects thereof are similar, and details are not described herein again.
  • FIG. 7 is a schematic structural diagram of Embodiment 3 of a mobile video service feedback apparatus for user experience quality provided by the present invention, where the apparatus can be integrated in a base station.
  • the apparatus includes: a first sending module 20, configured to send a first video resource to a terminal; a first receiving module 21, configured to receive a capacity of an available buffer of the terminal fed back by the terminal;
  • the second sending module 22 is configured to send the second video resource to the terminal according to the available buffer capacity.
  • the mobile video service feedback device for the user experience quality provided by the embodiment of the present invention may perform the foregoing method embodiments, and the implementation principles and technical effects thereof are similar, and details are not described herein again.
  • FIG. 8 is a schematic structural diagram of Embodiment 4 of a mobile video service feedback apparatus for user experience quality according to the present invention.
  • the device further includes: a second receiving module 23, configured to receive the terminal before the first sending module 20 sends the first video resource to the terminal a video resource request message sent by the video resource request message, where the video resource request message carries a measurement value of the user experience quality QoE indicator, and the measured value of the QoE is a set of one or more measurement values;
  • the method is configured to send, according to the measured value of the QoE indicator, a response message to the terminal, where the response message includes the first video resource that is sent by the device to the terminal, and the device is a downlink resource that is allocated by the terminal to receive the first video resource, and an uplink resource that is allocated by the device to the terminal and that feeds back the capacity of the available buffer to the base station.
  • the mobile video service feedback device for the user experience quality provided by the embodiment of the present invention may perform the foregoing method embodiments, and the implementation principles and technical effects thereof are similar, and details are not described herein again.
  • the first receiving module 21 includes: a receiving unit 210, configured to receive, according to the current video playing mode of the terminal, the terminal Determining a representation level corresponding to the maximum rate at which the terminal receives the first video resource; wherein, the maximum rate at which the terminal receives the first video resource is determined by the terminal according to the measured value of the QoE indicator;
  • the determining unit 211 is configured to learn, according to the representation level, a capacity size of an available buffer of the terminal.
  • the mobile video service feedback device for the user experience quality provided by the embodiment of the present invention may perform the foregoing method embodiments, and the implementation principles and technical effects thereof are similar, and details are not described herein again.
  • FIG. 9 is a schematic structural diagram of Embodiment 1 of a mobile video service feedback device for user quality of experience provided by the present invention.
  • the device may be a terminal or may be integrated in the terminal.
  • the device includes: a receiver 30, configured to receive a first video resource sent by a base station, and a processor 31, configured to perform, on the first video resource size and a capacity of an available buffer of the device, Comparing the operation, obtaining the comparison result; and if the comparison result is not greater than, storing the first video resource into the available buffer; and if the comparison result is greater than,
  • the base station feeds back the capacity of the available buffer, and discards the first video resource, so that the base station sends the second video resource to the device according to the capacity of the available buffer;
  • the processor 31 is further configured to: return the second video resource as a new first video resource and a capacity of the available buffer of the terminal to perform the comparing operation, until The comparison result is not greater than.
  • the mobile video service feedback device for the user experience quality provided by the embodiment of the present invention may perform the foregoing method embodiments, and the implementation principle and technical effects thereof are similar, and details are not described herein again.
  • FIG. 10 is a schematic structural diagram of Embodiment 2 of a mobile video service feedback device for user experience quality according to the present invention.
  • the device further includes: a transmitter 32, configured to: Sending a video resource request message to the base station; where the video resource request message carries a measurement value of a user experience quality QoE indicator, where the measured value of the QoE indicator is a set of one or more measured values;
  • the device 30 is specifically configured to receive a response message sent by the base station according to the measured value of the QoE indicator, where the response message includes the first video resource that is sent by the base station to the device, and the base station is a downlink resource that is allocated by the device to receive the first video resource, and an uplink resource that is allocated by the base station to the device to feed back the capacity of the available buffer to the base station.
  • the mobile video service feedback device for the user experience quality provided by the embodiment of the present invention may perform the foregoing method embodiment, and the implementation principle and the technical effect are similar, and details are not described herein again.
  • the processor 31 is further configured to determine, according to the measured value of the QoE indicator, a maximum rate at which the device receives the first video resource, and determine, according to a current video play mode, the device to receive the first a representation level corresponding to a maximum rate of a video resource; sending the representation level to the base station, so that the base station learns the capacity size of the available buffer according to the representation level.
  • the measured value of the foregoing QoE indicator includes 3 ⁇ 4 ( 0 ⁇ ( 0 and ⁇ ') ; wherein, ⁇ (0 is the second video data packet in the video resource received by the device before entering the user queue At the moment, 7) (0 is the time when the first video data packet in the video resource received by the device enters the server queue, which is the size of the first video data packet in the video resource received by the device last time;
  • the processor 31 may also be used according to the formula, wherein the P is the device
  • the number of the last video data packets in the previous received video resource and the maximum rate of the first video resource that is sent by the base station and the maximum of the first video resource received by the device rate.
  • the processor 31 may be further configured to: if the base station allocates a physical uplink shared channel PUSCH resource to the device, the processor feeds back, by using the PUSCH resource, the available buffer capacity to the base station. And if the base station does not allocate the PUSCH resource to the device, the processor feeds back the capacity of the available buffer to the base station by using a physical uplink control channel PUCCH resource.
  • the mobile video service feedback device for the user experience quality provided by the embodiment of the present invention may perform the foregoing method embodiment, and the implementation principle and the technical effect are similar, and details are not described herein again.
  • FIG. 1 is a schematic structural diagram of Embodiment 3 of a mobile video service feedback device for user experience quality provided by the present invention.
  • the device can be a base station or integrated in a base station.
  • the device includes: a transmitter 40, configured to send a first video resource to a terminal, and a receiver 41, configured to receive a capacity of an available buffer of the terminal fed back by the terminal; 40.
  • the method further sends a second video resource to the terminal according to the available buffer capacity.
  • the mobile video service feedback device for the user experience quality provided by the embodiment of the present invention may perform the foregoing method embodiments, and the implementation principle and technical effects thereof are similar, and details are not described herein again.
  • the receiver 41 is further configured to receive a video resource request message sent by the terminal, where the video resource request message carries a measurement value of a user experience quality QoE indicator, and the measured value of the QoE is one. Or a set of multiple measured values; the transmitter 40 is specifically configured to send a response message to the terminal according to the measured value of the QoE indicator; where the response message includes the device sending the device to the terminal.
  • the receiver 41 is further configured to receive, according to a current video play mode of the terminal, a representation level corresponding to a maximum rate at which the terminal receives the first video resource, where The maximum rate at which the terminal receives the first video resource is determined by the terminal according to the measured value of the QoE indicator; and the capacity size of the available buffer of the terminal is learned according to the representation level.
  • the mobile video service feedback device for the user experience quality provided by the embodiment of the present invention may perform the foregoing method embodiments, and the implementation principle and technical effects thereof are similar, and details are not described herein again.

Abstract

一种面向用户体验质量的移动视频业务反馈方法、装置和设备。该方法包括:终端接收基站发送的第一视频资源,并对第一视频资源大小和终端的可用缓冲区的容量执行比较操作,获取比较结果;若比较结果为不大于,则终端将第一视频资源存入可用缓冲区;若比较结果为大于,则终端向基站反馈可用缓冲区的容量,并丢弃第一视频资源,以使基站根据可用缓冲区的容量向终端下发第二视频资源;终端接收第二视频资源,并将第二视频资源作为新的第一视频资源与终端的可用缓冲区的容量返回执行比较操作,直至比较结果为不大于为止;从而避免了基站向终端下发数据时造成终端的缓冲区溢出,提高了用户的体验质量。

Description

面向用户体验质量的移动视频业务反馈方法、 装置和设备 技术领域
本发明涉及通信技术, 尤其涉及一种面向用户体验质量的移动视频业务 反馈方法、 装置和设备。 背景技术
随着智能手机的发展、 新兴平板电脑的出现, 用户对高质量视频内容的 需求急剧增加。 这些移动设备不仅要能够支持多种视频流应用和交互视频应 用 (例如: 视频会议) , 同时还要具有获取视频的能力, 以便于视频共享、 视频播客、视频推特、视频广播应用等,而如何保障用户的体验质量(Qual ity of Experience, 以下简称 QoE)是移动视频得以成功发展和推广的关键所在。 QoE 是指用户的主观体验, 相对于服务质量 (Qual ity of Service, 以下简 称 QoS )性能指标难以估量。但不可否认, 网络带宽是影响移动视频业务 QoE 的最重要因素, 因为只有宽带移动网络才能保证移动视频业务的质量和实时 性。 对于高质量的移动视频业务, 其平均带宽需求为 3Mbps。 在下行数据传 输过程中, 调度与数据发送都由基站完成。 基站下行调度器根据基站侧的缓 存数据量、 用户的 QoS要求、 公平性以及反馈上来的信道测量报告做出调度 决定, 基站把调度结果通过控制信令发送到各有关用户并根据调度结果发送 下行数据; 被调度到的用户在调度信令所指定的资源块上以指定的调制编码 方案、 天线选择方案接收下行数据。 但是, 如何保障终端用户的 QoE并能有 效避免终端的缓冲区溢出, 是当前移动视频业务急需解决的问题。
现有技术中, 基站向客户端设备发送媒体呈现数据, 客户端设备根据所 接收到的媒体呈现数据计算出 QoE度量值, 并将该 QoE度量值周期性的上报 给基站, 使得基站获知当前用户接收下行数据时的 QoE。
但是, 现有技术基站在向终端下发数据时容易造成终端的缓冲区溢出, 进而影响用户的 QoE。
发明内容 本发明实施例提供一种面向用户体验质量的移动视频业务反馈方法、 装 置和设备, 用以解决现有技术中基站在向终端下发数据时容易造成终端的缓 冲区溢出, 影响用户的 QoE的问题。
本发明实施例第一方面提供一种面向用户体验质量的移动视频业务反馈 方法, 包括:
终端接收基站发送的第一视频资源, 并对所述第一视频资源大小和所述 终端的可用缓冲区的容量执行比较操作, 获取比较结果;
所述终端根据所述比较结果确定是否将所述第一视频资源存入所述可用 缓冲区;
若所述比较结果为不大于, 则所述终端将所述第一视频资源存入所述可 用缓冲区;
若所述比较结果为大于, 则所述终端向所述基站反馈所述可用缓冲区的 容量, 并丢弃所述第一视频资源, 以使所述基站根据所述可用缓冲区的容量 向所述终端下发第二视频资源;
所述终端接收所述第二视频资源, 并将所述第二视频资源作为新的第一 视频资源与所述终端的可用缓冲区的容量返回执行所述比较操作, 直至所述 比较结果为不大于为止。
结合第一方面, 在第一方面的第一种可能的实施方式中, 所述终端接收 基站发送的第一视频资源之前, 还包括:
所述终端向所述基站发送视频资源请求消息; 其中, 所述视频资源请求 消息中携带用户体验质量 QoE指标的测量值, 所述 QoE指标的测量值为一个 或多个测量值的集合;
则所述终端接收基站发送的第一视频资源, 包括:
所述终端接收所述基站根据所述 QoE指标的测量值发送的响应消息; 其 中, 所述响应消息包括所述基站下发给所述终端的所述第一视频资源、 所述 基站为所述终端分配的接收所述第一视频资源的下行资源以及所述基站为所 述终端分配的向所述基站反馈所述可用缓冲区的容量的上行资源。
结合第一方面的第一种可能的实施方式, 在第一方面的第二种可能的实 施方式中, 所述终端向所述基站反馈所述可用缓冲区的容量, 包括:
所述终端根据所述 QoE指标的测量值确定所述终端接收所述第一视频资 源的最大速率;
所述终端根据当前的视频播放模式确定与所述终端接收所述第一视频资 源的最大速率对应的表示级别;
所述终端将所述表示级别发送给所述基站, 以使所述基站根据所述表示 级别获知所述可用缓冲区的容量大小。
结合第一方面的第二种可能的实施方式, 在第一方面的第三种可能的实 施方式中, 所述 QoE 指标的测量值包括 r ¾ (0、 和 a^ (0 ; 其中, 为所述终端前一次接收的视频资源中的第 ζ·个视频数据包进入到用 户队列的时刻, 7^¾(0为所述终端前一次接收的视频资源中的第 个视频数 据包进入服务器队列的时刻, 为所述终端前一次接收的视频资源中 的第 个视频数据包的大小; 则所述终端根据所述 QoE指标的测量值确定所 述终端接收所述第一视频资源的最大速率, 包括:
所述终端根据公式 R = ∑ 确定链路吞吐量 其
尸 ^ 中,所述 P为所述终端前一次接收的视频资源中的后 ^个视频数据包的个数; 所述终端根据所述基站下发所述第一视频资源的源速率与所述¾ ^确定 所述终端接收所述第一视频资源的最大速率。
结合第一方面的第三种可能的实施方式, 在第一方面的第四种可能的实 施方式中, 所述终端根据当前的视频播放模式确定与所述终端接收所述第一 视频资源的最大速率对应的表示级别, 包括:
若所述终端当前的视频播放模式为流模式, 则所述终端根据公式 β: = arg max b! ; b! = 1,2, ..., N确定第一表示级别 β:;其中,所述 b,为 表示级别为 的编码视频比特速率;
若所述终端当前的视频播放模式为缓冲模式, 则所述终端根据公式 Q!: ch = max(l, min(2r _ 1, β ))确定第二表示级别 Q :h; 其中, 所述 β ν为所述 终端前一次接收视频资源时的表示级别。 结合第一方面的第一种可能的实施方式, 在第一方面的第五种可能的实 施方式中, 所述终端向所述基站反馈所述可用缓冲区的容量, 包括:
若所述基站为所述终端分配物理上行共享信道 PUSCH资源, 则所述终端 通过所述 PUSCH资源向所述基站反馈所述可用缓冲区的容量;
若所述基站未给所述终端分配所述 PUSCH资源, 则所述终端通过物理上 行控制信道 PUCCH资源向所述基站反馈所述可用缓冲区的容量。
本发明实施例第二方面提供一种面向用户体验质量的移动视频业务反馈 方法, 包括:
基站向终端发送第一视频资源;
所述基站接收所述终端反馈的所述终端的可用缓冲区的容量;
所述基站根据所述可用缓冲区容量向所述终端发送第二视频资源。
结合第二方面, 在第二方面的第一种可能的实施方式中, 所述基站向终 端发送第一视频资源之前, 还包括:
所述基站接收所述终端发送的视频资源请求消息; 其中, 所述视频资源 请求消息中携带用户体验质量 QoE指标的测量值, 所述 QoE的测量值为一个 或多个测量值的集合;
则所述基站向终端发送第一视频资源, 包括:
所述基站根据所述 QoE指标的测量值向所述终端发送响应消息; 其中, 所述响应消息包括所述基站下发给所述终端的所述第一视频资源、 所述基站 为所述终端分配的接收所述第一视频资源的下行资源以及所述基站为所述终 端分配的向所述基站反馈所述可用缓冲区的容量的上行资源。
结合第二方面的第一种可能的实施方式, 在第二方面的第二种可能的实 施方式中, 所述基站接收所述终端反馈的所述终端的可用缓冲区的容量, 包 括:
所述基站接收所述终端根据所述终端的当前的视频播放模式确定的与所 述终端接收所述第一视频资源的最大速率对应的表示级别; 其中, 所述终端 接收所述第一视频资源的最大速率由所述终端根据所述 QoE指标的测量值确 定;
所述基站根据所述表示级别获知所述终端的可用缓冲区的容量大小。 本发明实施例第三方面提供一种面向用户体验质量的移动视频业务反馈 装置, 包括:
接收比较模块, 用于接收基站发送的第一视频资源, 并对所述第一视频 资源大小和所述装置的可用缓冲区的容量执行比较操作, 获取比较结果; 确定模块, 包括反馈单元和存储单元;
若所述比较结果为不大于, 则所述存储单元用于将所述第一视频资源存 入所述可用缓冲区;
若所述比较结果为大于, 则所述反馈单元用于向所述基站反馈所述可用 缓冲区的容量, 并丢弃所述第一视频资源, 以使所述基站根据所述可用缓冲 区的容量向所述装置下发第二视频资源;
则所述接收比较模块还用于接收所述第二视频资源, 并将所述第二视频 资源作为新的第一视频资源与所述终端的可用缓冲区的容量返回执行所述比 较操作, 直至所述比较结果为不大于为止。
结合第三方面, 在第三方面的第一种可能的实施方式中, 所述装置还包 括:
发送模块,用于在所述接收比较模块接收基站发送的第一视频资源之前, 向所述基站发送视频资源请求消息; 其中, 所述视频资源请求消息中携带用 户体验质量 QoE指标的测量值, 所述 QoE指标的测量值为一个或多个测量值 的集合;
则所述接收比较模块, 具体用于接收所述基站根据所述 QoE指标的测量 值发送的响应消息; 其中, 所述响应消息包括所述基站下发给所述装置的所 述第一视频资源、 所述基站为所述装置分配的接收所述第一视频资源的下行 资源以及所述基站为所述装置分配的向所述基站反馈所述可用缓冲区的容量 的上行资源。
结合第三方面的第一种可能的实施方式, 在第三方面的第二种可能的实 施方式中, 所述反馈单元具体用于根据所述 QoE指标的测量值确定所述装置 接收所述第一视频资源的最大速率; 根据当前的视频播放模式确定与所述装 置接收所述第一视频资源的最大速率对应的表示级别; 将所述表示级别发送 给所述基站, 以使所述基站根据所述表示级别获知所述可用缓冲区的容量大 小。
结合第三方面的第二种可能的实施方式, 在第三方面的第三种可能的实 施方式中, 所述 QoE 指标的测量值包括 r fc¾ (0、 和 ^ (0 ; 其中, ^ (0为所述装置前一次接收的视频资源中的第 ^个视频数据包进入到用 户队列的时刻, Γω (0为所述装置前一次接收的视频资源中的第 个视频数 据包进入服务器队列的时刻, 为所述装置前一次接收的视频资源中 的第 个视频数据包的大小; 则所述反馈单元, 具体用于根据公式 其中, 所述 p为所述装置
Figure imgf000008_0001
前一次接收的视频资源中的后 ^个视频数据包的个数; 并根据所述基站下发 所述第一视频资源的源速率与所述 ^确定所述装置接收所述第一视频资源 的最大速率。 结合第三方面的第三种可能的实施方式, 在第三方面的第四种可能的实 施方式中, 所述反馈单元, 具体用于若所述装置当前的视频播放模式为流模 式, 则根据公式 2 = arg m b, ; b^ R^ ii) = 1,2, ..., N确定第一表示级别 β ; 其中, 所述 b,为表示级别为 的编码视频比特速率; 若所述装置当前的视频 播放模式为缓冲模式, 则根据公式
Figure imgf000008_0002
-l,e ))确定第二表示 级别 β£ ; 其中, 所述 为所述装置前一次接收视频资源时的表示级别。
结合第三方面的第一种可能的实施方式, 在第三方面的第五种可能的实 施方式中,所述反馈单元具体用于若所述基站为所述装置分配物理上行共享 信道 PUSCH资源, 则所述反馈单元通过所述 PUSCH资源向所述基站反馈所述 可用缓冲区的容量; 若所述基站未给所述装置分配所述 PUSCH资源, 则所述 反馈单元通过物理上行控制信道 PUCCH资源向所述基站反馈所述可用缓冲区 本发明实施例第四方面提供一种面向用户体验质量的移动视频业务反馈 装置, 包括:
第一发送模块, 用于向终端发送第一视频资源;
第一接收模块,用于接收所述终端反馈的所述终端的可用缓冲区的容量; 第二发送模块, 用于根据所述可用缓冲区容量向所述终端发送第二视频 资源。
结合第四方面, 在第四方面的第一种可能的实施方式中, 所述装置还包 括:
第二接收模块,用于在所述第一发送模块向终端发送第一视频资源之前, 接收所述终端发送的视频资源请求消息; 其中, 所述视频资源请求消息中携 带用户体验质量 QoE指标的测量值, 所述 QoE的测量值为一个或多个测量值 的集合;
则所述第一发送模块, 具体用于根据所述 QoE指标的测量值向所述终端 发送响应消息; 其中, 所述响应消息包括所述装置下发给所述终端的所述第 一视频资源、 所述装置为所述终端分配的接收所述第一视频资源的下行资源 以及所述装置为所述终端分配的向所述基站反馈所述可用缓冲区的容量的上 行资源。
结合第四方面的第一种可能的实施方式, 在第四方面的第二种可能的实 施方式中, 所述第一接收模块, 包括:
接收单元, 用于接收所述终端根据所述终端的当前的视频播放模式确定 的与所述终端接收所述第一视频资源的最大速率对应的表示级别; 其中, 所 述终端接收所述第一视频资源的最大速率由所述终端根据所述 QoE指标的测 量值确定;
确定单元, 用于根据所述表示级别获知所述终端的可用缓冲区的容量大 小。
本发明实施例第五方面提供一种面向用户体验质量的移动视频业务反馈 设备, 包括:
接收器, 用于接收基站发送的第一视频资源;
处理器, 用于对所述第一视频资源大小和所述装置的可用缓冲区的容量 执行比较操作, 获取比较结果; 还用于若所述比较结果为不大于, 则将所述 第一视频资源存入所述可用缓冲区; 还用于若所述比较结果为大于, 则向所 述基站反馈所述可用缓冲区的容量, 并丢弃所述第一视频资源, 以使所述基 站根据所述可用缓冲区的容量向所述设备下发第二视频资源;
则所述接收器还用于接收所述第二视频资源, 所述处理器还用于将所述 第二视频资源作为新的第一视频资源与所述终端的可用缓冲区的容量返回执 行所述比较操作, 直至所述比较结果为不大于为止。
结合第五方面, 在第五方面的第一种可能的实施方式中, 所述设备还包 括:
发送器, 用于向所述基站发送视频资源请求消息; 其中, 所述视频资源 请求消息中携带用户体验质量 QoE指标的测量值, 所述 QoE指标的测量值为 一个或多个测量值的集合;
则所述接收器具体用于接收所述基站根据所述 QoE指标的测量值发送的 响应消息; 其中, 所述响应消息包括所述基站下发给所述设备的所述第一视 频资源、 所述基站为所述设备分配的接收所述第一视频资源的下行资源以及 所述基站为所述设备分配的向所述基站反馈所述可用缓冲区的容量的上行资 源。
结合第五方面的第一种可能的实施方式, 在第五方面的第二种可能的实 施方式中, 所述处理器具体用于根据所述 QoE指标的测量值确定所述设备接 收所述第一视频资源的最大速率; 根据当前的视频播放模式确定与所述设备 接收所述第一视频资源的最大速率对应的表示级别; 将所述表示级别发送给 所述基站, 以使所述基站根据所述表示级别获知所述可用缓冲区的容量大小。
结合第五方面的第二种可能的实施方式, 在第五方面的第三种可能的实 施方式中, 所述 QoE 指标的测量值包括 r fc¾ (0、 和 ^ (0 ; 其中, ^(0为所述设备前一次接收的视频资源中的第 ^个视频数据包进入到用 户队列的时刻, 7)^(0为所述设备前一次接收的视频资源中的第 个视频数 据包进入服务器队列的时刻, 为所述设备前一次接收的视频资源中 的第 个视频数据包的大小; 则所述处理器, 具体用于根据公式
¾„ ∑ T r ^确定链路吞吐量 其中, 所述 P为所述设备 尸 丄 前一次接收的视频资源中的后 ^个视频数据包的个数; 并根据所述基站下发 所述第一视频资源的源速率与所述 ^确定所述设备接收所述第一视频资源 的最大速率。 结合第五方面的第三种可能的实施方式, 在第五方面的第四种可能的实 施方式中, 所述处理器, 具体用于若所述设备当前的视频播放模式为流模式, 则根据公式 2 = arg mp b, ; b,≤R (0 = 1,2, ..., N确定第一表示级别 β ; 其 中, 所述 b,为表示级别为 的编码视频比特速率; 若所述设备当前的视频播 放模式为缓冲模式, 则根据公式 =
Figure imgf000010_0001
-l,e ))确定第二表示级 别2^¾; 其中, 所述 为所述设备前一次接收视频资源时的表示级别。 结合第五方面的第一种可能的实施方式, 在第五方面的第五种可能的实 施方式中, 所述处理器具体用于若所述基站为所述设备分配物理上行共享信 道 PUSCH资源, 则所述处理器通过所述 PUSCH资源向所述基站反馈所述可用 缓冲区的容量; 若所述基站未给所述设备分配所述 PUSCH资源, 则所述处理 器通过物理上行控制信道 PUCCH 资源向所述基站反馈所述可用缓冲区的容 本发明实施例第六方面提供一种面向用户体验质量的移动视频业务反馈 设备, 包括:
发送器, 用于向终端发送第一视频资源;
接收器, 用于接收所述终端反馈的所述终端的可用缓冲区的容量; 所述发送器, 还用于根据所述可用缓冲区容量向所述终端发送第二视频 资源。
结合第六方面, 在第六方面的第一种可能的实施方式中, 所述接收器还 用于接收所述终端发送的视频资源请求消息; 其中, 所述视频资源请求消息 中携带用户体验质量 QoE指标的测量值, 所述 QoE的测量值为一个或多个测 量值的集合;
则所述发送器, 具体用于根据所述 QoE指标的测量值向所述终端发送响 应消息; 其中, 所述响应消息包括所述设备下发给所述终端的所述第一视频 资源、 所述设备为所述终端分配的接收所述第一视频资源的下行资源以及所 述设备为所述终端分配的向所述基站反馈所述可用缓冲区的容量的上行资 源。
结合第六方面的第一种可能的实施方式, 在第六方面的第二种可能的实 施方式中, 所述接收器, 具体用于接收所述终端根据所述终端的当前的视频 播放模式确定的与所述终端接收所述第一视频资源的最大速率对应的表示级 别; 其中, 所述终端接收所述第一视频资源的最大速率由所述终端根据所述 QoE 指标的测量值确定; 并根据所述表示级别获知所述终端的可用缓冲区的 本发明实施例的面向用户体验质量的移动视频业务反馈方法、 装置和设 备, 通过终端将接收到基站下发的第一视频资源与终端的可用缓冲区的容量 进行大小比较, 获取比较结果; 并在基站下发的第一视频资源大小大于终端 的可用缓冲区的容量时, 向基站上报自己的可用缓冲区的容量大小, 使得基 站能够根据该可用缓冲区的容量确定合适大小的视频资源发送给终端, 有效 避免了当基站下发大量下行数据给终端时造成终端的缓冲区溢出, 从而提高 了用户的体验质量。 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 为本发明提供的面向用户体验质 :的移动视频业务反馈方法实施例 一的流程图;
图 2为本发明提供的面向用户体验质 :的移动视频业务反馈方法实施例 二的流程图;
图 3为本发明提供的面向用户体验质 :的移动视频业务反馈方法实施例 三的流程图;
图 4为本发明提供的面向用户体验质 :的移动视频业务反馈方法实施例 四的流程图;
图 5为本发明提供的面向用户
Figure imgf000012_0001
一的结构示意图;
图 6为本发明提供的面向用户
Figure imgf000012_0002
二的结构示意图;
图 7为本发明提供的面向用户
Figure imgf000012_0003
三的结构示意图;
图 8为本发明提供的面向用户
Figure imgf000012_0004
四的结构示意图;
图 9为本发明提供的面向用户体验质 :的移动视频业务反馈设备实施例 一的结构示意图;
图 10为本发明提供的面向用户体验质 :的移动视频业务反馈设备实施例 二的结构示意图;
图 11为本发明提供的面向用户体验质量的移动视频业务反馈设备实施例 三的结构示意图。 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。
本申请中涉及的终端, 即用户设备, 可以是无线终端也可以是有线终 端, 无线终端可以是指向用户提供语音和 /或数据连通性的设备, 具有无 线连接功能的手持式设备、 或连接到无线调制解调器的其他处理设备。 无 线终端可以经无线接入网 (例如, RAN, Radio Access Network) 与一个 或多个核心网进行通信, 无线终端可以是移动终端, 如移动电话 (或称为 "蜂窝" 电话)和具有移动终端的计算机, 例如, 可以是便携式、袖珍式、 手持式、 计算机内置的或者车载的移动装置, 它们与无线接入网交换语言 禾口 /或数据。例如,个人通信业务(PCS, Personal Communication Service) 电话、无绳电话、会话发起协议(SIP)话机、无线本地环路(WLL, Wireless Local Loop) 站、 个人数字助理 (PDA, Personal Digital Assistant) 等设备。 无线终端也可以称为系统、 订户单元 (Subscriber Unit) 、 订 户站(Subscriber Station),移动站(Mobile Station)、移动台(Mobile)、 远程站 (Remote Station) 、 接入点 (Access Point) 、 远程终端 (Remote Terminal )、接入终端 (Access Terminal )、用户终端 (User Terminal )、 用户代理 (User Agent) 、 用户设备 (User Device) 或用户装备 (User Equipment ) 。 本申请中涉及的基站可以是指接入网中在空中接口上通过一个或多 个扇区与无线终端通信的设备。 基站可用于将收到的空中帧与 IP分组进 行相互转换, 作为无线终端与接入网的其余部分之间的路由器, 其中接入 网的其余部分可包括网际协议 (IP) 网络。 基站还可协调对空中接口的属 性管理。例如, 基站可以是 GSM或 CDMA中的基站(BTS, Base Transceiver Station) , 也可以是 WCDMA中的基站 (NodeB) , 还可以是 LTE中的演进 型基站 (NodeB或 eNB或 e-NodeB, evolutional Node B ) , 本申请并不 限定。
图 1为本发明提供的面向用户体验质量的移动视频业务反馈方法实施 例一的流程图。 如图 1所示, 该方法包括如下步骤:
S101 : 终端接收基站发送的第一视频资源, 并对该第一视频资源大小和 终端的可用缓冲区的容量执行比较操作, 获取比较结果。
具体的, 基站向终端发送第一视频资源, 该第一视频资源可以为视频片 段, 也可以为视频剪辑。 终端接收第一视频资源, 并将该第一视频资源的大 小与终端的可用缓冲区的容量大小进行比较, 确定比较结果。 这里需要注意 的是, 终端所接收到的第一视频资源还未存储于终端的可用缓冲区。
S102 : 终端根据该比较结果确定是否将第一视频资源存入上述可用缓冲 区; 若比较结果为不大于, 则终端将第一视频资源存入可用缓冲区; 若比较 结果为大于, 则终端向基站反馈可用缓冲区的容量, 并丢弃第一视频资源, 以使基站根据可用缓冲区的容量向终端下发第二视频资源; 终端接收第二视 频资源, 并将第二视频资源作为新的第一视频资源与终端的可用缓冲区的容 量返回执行比较操作, 直至比较结果为不大于为止。
具体的, 当终端确定上述第一视频资源大小大于终端的可用缓冲区的容 量, 则表明若终端将该第一视频资源直接存储至可用缓冲区, 则会造成终端 的缓冲区溢出, 影响用户的 QoE。 因此, 终端为了能够接收到自己的缓冲区 可以存储的视频资源, 会向基站反馈可用缓冲区的容量, 并且丢弃掉上述大 于可用缓冲区的容量的第一视频资源。 需要注意的是, 终端可以通过多种方 式将可用缓冲区的容量反馈给基站, 例如: 终端可以通过缓冲程度告知基站 终端的可用缓冲区的容量大小, 还可以通过终端接收第一视频资源的最大速 率对应的表示级别告知基站终端的可用缓冲区的容量大小, 还可以直接用字 节的形式告知基站终端的可用缓冲区的容量大小, 还可以通过可用缓冲区占 总缓冲区容量的相对值告知基站终端的可用缓冲区的容量大小, 本发明实施 例对此不做限制。
基站在接收到终端反馈的可用缓冲区的容量后, 获知终端的可用缓冲区 的容量大小, 则根据该可用缓冲区的容量大小向终端下发第二视频资源。 这 里的第二视频资源和上述第一视频资源的内容相同, 只是比上述第一视频资 源大小要小一些, 例如: 第二视频资源可以是第一视频资源的压缩, 或者通 过降低第二视频资源的清晰度使得第二视频资源大小不大于第一视频资源。
终端接收基站下发的第二视频资源, 并将该第二视频资源作为新的第一 视频资源重新与上述终端的可用缓冲区的容量进行比较, 若比较结果依然是 大于可用缓冲区的容量, 则终端会继续向基站反馈自己当前的可用缓冲区的 容量, 使得基站再次根据可用缓冲区的容量下发视频资源, 直至基站下发的 视频资源大小不大于终端的可用缓冲区的容量为止。
当终端接收到基站发送的第一视频资源大小不大于终端的可用缓冲区的 容量, 则终端直接将该第一视频资源存储至上述可用缓冲区。
本发明实施例的面向用户体验质量的移动视频业务反馈方法, 通过终端 将接收到基站下发的第一视频资源与终端的可用缓冲区的容量进行大小比 较, 获取比较结果; 并在基站下发的第一视频资源大小大于终端的可用缓冲 区的容量时, 向基站上报自己的可用缓冲区的容量大小, 使得基站能够根据 该可用缓冲区的容量确定合适大小的视频资源发送给终端, 有效避免了当基 站下发大量下行数据给终端时造成终端的缓冲区溢出, 从而提高了用户的体 验质量。
图 2为本发明提供的面向用户体验质量的移动视频业务反馈方法实施例 二的流程图。本实施例涉及的方法是终端通过向基站发送视频资源请求消息, 使得基站发送第一视频资源给终端, 终端根据所接收到的第一视频资源大小 与终端的可用缓冲区大小进行比较后, 向基站反馈可用缓冲区的容量的具体 流程。 该方法具体包括如下步骤:
S201 : 终端向基站发送视频资源请求消息; 其中, 该视频资源请求消息 中携带用户 QoE指标的测量值, 该 QoE指标的测量值为一个或多个测量值的 隹 A
朱 o
具体的,基站在发送第一视频资源时,若基站想获知终端侧的用户的 QoE , 则向终端发送 QoE指标, 终端根据相关的参数计算该 QoE指标的测量值发送 给基站, 使得基站根据 QoE指标的测量值知道用户上一次接收视频资源时的 体验质量和用户此次接收第一视频资源时的 QoE需求。 这里的 QoE指标的测 量值可以是一个, 也可以是多个, 即 QoE指标测量值可以是重缓冲百分比, 也可以是接收视频资源中的视频数据包进入终端缓冲区的用户队列的时刻 Tdownload (i),还可以是接收视频资源中的视频数据包进入基站缓冲区的服务器队 列的时刻 r fc¾(o, 还可以为请求 /响应处理、 开关事件、 平均吞吐量、 初始 播放延迟、 缓冲程度、 播放列表、 媒体描述文件 (Media Presentation Descript ion , 以下简称 MPD ) 信息等, 本发明实施例对此并不做限制。
S202 : 终端接收基站根据上述 QoE指标的测量值发送的响应消息; 其中, 该响应消息包括基站下发给终端的第一视频资源、 基站为终端分配的接收上 述第一视频资源的下行资源以及基站为终端分配的向基站反馈可用缓冲区的 容量的上行资源。
具体的, 基站在接收到终端发送的 QoE指标的测量值后, 根据该 QoE指 标的测量值,检查是否符合基站侧预设的用户配置文件和网络运营策略规则, 并根据检查结果向终端发送响应消息。 该响应消息包括: 基站下发给终端的 第一视频资源、 基站为终端分配的接收上述第一视频资源的下行资源以及基 站为终端分配的向基站反馈可用缓冲区的容量的上行资源。
S203 : 终端根据该比较结果确定是否将第一视频资源存入上述可用缓冲 区; 若比较结果为不大于, 则终端将第一视频资源存入可用缓冲区; 若比较 结果为大于, 则终端向基站反馈可用缓冲区的容量, 并丢弃第一视频资源, 以使基站根据可用缓冲区的容量向终端下发第二视频资源; 终端接收第二视 频资源, 并将第二视频资源作为新的第一视频资源与终端的可用缓冲区的容 量返回执行比较操作, 直至比较结果为不大于为止。
具体的,终端在基站所分配的下行资源上接收基站发送的第一视频资源, 并将第一视频资源大小与终端的可用缓冲区的容量进行比较,获取比较结果, 并根据比较结果决定是向基站反馈终端的可用缓冲区的容量还是直接向第一 视频资源存储至终端的可用缓冲区。 具体的比较和确定过程可以参见上述图 1所示实施例的部分, 在此不再赘述。
另外, 由于终端向基站反馈可用缓冲区的容量是由终端自己触发的, 即 反馈周期是自己控制的, 也避免了上行资源的浪费。
本发明实施例的面向用户体验质量的移动视频业务反馈方法, 通过终端 将接收到基站下发的第一视频资源与终端的可用缓冲区的容量进行大小比 较, 获取比较结果; 并在基站下发的第一视频资源大小大于终端的可用缓冲 区的容量时, 向基站上报自己的可用缓冲区的容量大小, 使得基站能够根据 该可用缓冲区的容量确定合适大小的视频资源发送给终端, 有效避免了当基 站下发大量下行数据给终端时造成终端的缓冲区溢出, 从而提高了用户的体 验质量。
在图 2所示实施例基础上, 作为本发明实施例的一种可行的实施方式, 本实施例涉及的方法是终端通过确定不同播放模式下的表示级别, 并将该表 示级别发送给基站, 以使基站根据该表示级别知道终端当前的可用缓冲区的 容量。 进一步地, 上述终端向所述基站反馈所述可用缓冲区的容量, 包括: 终端根据上述 QoE指标的测量值确定终端接收第一视频资源的最大速率; 并 根据当前的视频播放模式确定与终端接收第一视频资源的最大速率对应的表 示级别; 并将该表示级别发送给基站, 以使基站根据该表示级别获知可用缓 冲区的容量大小。
具体的, 终端会根据自己测量的 QoE指标的测量值确定自己支持的接收 第一视频资源的最大速率。 可选的, 当上述 QoE 指标的测量值包括 r fc¾ ( )、 ^ (0和 。^ (0时, 终端可以根据该 QoE指标的测量值计算得到接收第一 视频资源的最大速率, 具体为:
终端首先根据公式 R = ∑ s 7 确定链路吞吐量 其 尸 l ) 丄 中, P为终端前一次接收的视频资源中的后 ^个视频数据包的个数; u 为终端前一次接收的视频资源中的第 个视频数据包进入到用户队列的时 亥1 J, r fc¾ (o为终端前一次接收的视频资源中的第 个视频数据包进入服务器 队列的时刻, £te(0为终端前一次接收的视频资源中的第 个视频数据包 的大小。 这里的用户队列指的是进入终端缓冲区的视频数据包构成的队 歹 ϋ, 服务器队列指的是进入基站缓冲区的视频数据包构成的队列 (因为发 送给终端的视频数据包要先进入服务器队列, 然后再进入用户队列) , Tdownload ( ) - Tfetch ( )即为终端前一次接收的视频资源中的第 个数据包从基站 到终端的传输时间。 在终端确定 Rt 之后, 终端将基站下发第一视频资源的源速率与 进 行匹配, 从而确定终端接收第一视频资源的最大速率。 这里需要注意的是, 基站可以通过广播或多播的方式告知终端下发第一视频资源的源速率的大 小。
当终端确定终端接收第一视频资源的最大速率之后, 终端会根据当前的 视频播放模式确定表示级别, 并将该表示级别告知基站, 使得基站获知终端 的可用缓冲区的容量, 这里的表示级别可以为速率的表现形式。 具体的, 终 端根据当前的视频播放模式确定表示级别分为两种情况:
第一种: 若终端当前的视频播放模式为流模式, 则终端根据公式 Qr s e p p p = arg max b - b, < R^ ( ) = 1,2, ..., N确定第一表示级别 β ; 其中, b,为表 示级别为 的编码视频比特速率.
第二种: 若终端当前的视频播放模式为缓冲模式, 则终端根据公式 ¾T¾ = max(l, min(2 - l,2:))确定第二表示级别2 ¾ ; 其中, β 为所述终端 前一次接收视频资源时的表示级别。 进一步地, 在上述实施例的基础上, 若基站为终端分配物理上行共享 信道 (Physical Upl ink Shared Channel , 以下简称 PUSCH) 资源, 则所述 终端通过 PUSCH资源向基站反馈可用缓冲区的容量; 若基站未给终端分配上 述 PUSCH资源,则终端通过上行控制信道 (Physical Uplink Control Channel , 以下简称 PUCCH) 资源向基站反馈可用缓冲区的容量。
本发明实施例的面向用户体验质量的移动视频业务反馈方法, 通过终端 将接收到基站下发的第一视频资源与终端的可用缓冲区的容量进行大小比 较, 获取比较结果; 并在基站下发的第一视频资源大小大于终端的可用缓冲 区的容量时, 向基站上报自己的可用缓冲区的容量大小, 使得基站能够根据 该可用缓冲区的容量确定合适大小的视频资源发送给终端, 有效避免了当基 站下发大量下行数据给终端时造成终端的缓冲区溢出, 从而提高了用户的体 验质量。
图 3为本发明提供的面向用户体验质量的移动视频业务反馈方法实施例 三的流程示意图。 如图 3所示, 该方法包括如下步骤:
S301 : 基站向终端发送第一视频资源。 具体的, 基站向终端发送第一视频资源, 该第一视频资源可以为视频片 段, 也可以为视频剪辑。 终端在接收到该第一视频资源后, 会对该第一视频 资源的大小与终端的可用缓冲区的容量大小进行比较, 确定比较结果。 这里 需要注意的是, 基站所发送的第一视频资源此次还未存储于终端的可用缓冲 区。
S302 : 基站接收终端反馈的终端的可用缓冲区的容量。
S303 : 基站根据该可用缓冲区容量向终端发送第二视频资源。
具体的, 当终端确定上述第一视频资源大小大于终端的可用缓冲区的容 量, 则表明若终端将该第一视频资源直接存储至可用缓冲区, 则会造成终端 的缓冲区溢出, 影响用户的 QoE。 因此, 终端为了能够接收到自己的缓冲区 可以存储的视频资源, 会向基站反馈可用缓冲区的容量, 并且丢弃掉上述大 于可用缓冲区的容量的第一视频资源。 需要注意的是, 终端可以通过多种方 式将可用缓冲区的容量反馈给基站, 例如: 终端可以通过缓冲程度告知基站 终端的可用缓冲区的容量大小, 还可以通过终端接收第一视频资源的最大速 率对应的表示级别告知基站终端的可用缓冲区的容量大小, 还可以直接用字 节的形式告知基站终端的可用缓冲区的容量大小, 还可以通过可用缓冲区占 总缓冲区容量的相对值告知基站终端的可用缓冲区的容量大小, 本发明实施 例对此不做限制。
基站在接收到终端反馈的可用缓冲区的容量后, 获知终端的可用缓冲区 的容量大小, 则根据该可用缓冲区的容量大小向终端下发第二视频资源。 这 里的第二视频资源和上述第一视频资源的内容相同, 只是比上述第一视频资 源大小要小一些, 例如: 第二视频资源可以是第一视频资源的压缩, 或者通 过降低第二视频资源的清晰度使得第二视频资源大小不大于第一视频资源。
终端接收基站下发的第二视频资源, 并将该第二视频资源作为新的第一 视频资源重新与上述终端的可用缓冲区的容量进行比较, 若比较结果依然是 大于可用缓冲区的容量, 则终端会继续向基站反馈自己当前的可用缓冲区的 容量, 使得基站再次根据可用缓冲区的容量下发视频资源, 直至基站下发的 视频资源大小不大于终端的可用缓冲区的容量为止。
当终端接收到基站发送的第一视频资源大小不大于终端的可用缓冲区的 容量, 则终端直接将该第一视频资源存储至上述可用缓冲区。 本发明实施例的面向用户体验质量的移动视频业务反馈方法, 通过基站 向终端发送第一视频资源, 终端将第一视频资源与终端的可用缓冲区的容量 进行大小比较, 并在基站下发的第一视频资源大小大于终端的可用缓冲区的 容量时, 向基站上报自己的可用缓冲区的容量大小, 使得基站能够根据该可 用缓冲区的容量确定合适大小的视频资源发送给终端, 有效避免了当基站下 发大量下行数据给终端时造成终端的缓冲区溢出, 从而提高了用户的体验质 图 4 为本发明提供的面向用户体验质量的移动视频业务反馈方法实施 例四的流程图。 本实施例涉及的方法是通过基站接收终端发送的携带 QoE指 标的测量值的视频资源请求消息, 向终端发送携带第一视频资源的响应消息, 从而使得终端根据第一视频资源与终端的可用缓冲区的容量进行比较后, 向 基站反馈可用缓冲区的容量的具体流程。 该方法具体包括如下步骤:
S401 : 基站接收终端发送的视频资源请求消息; 其中, 该视频资源请求 消息中携带用户的体验质量指标的测量值, 该体验质量的测量值为一个或多 个测量值的集合。
具体的, 基站在发送第一视频资源时, 若基站想获知终端用户的 QoE , 则向终端发送 QoE指标的内容, 终端根据相关的参数计算该 QoE指标的测量 值发送给基站, 使得基站根据 QoE指标的测量值知道用户上一次接收视频时 的体验质量和用户此次接收第一视频资源时的 QoE需求。 这里的 QoE指标的 测量值可以是一个, 也可以是多个, 即 QoE指标可以是重缓冲百分比, 也可 以是接收视频资源中的视频数据包进入终端缓冲区的用户队列的时刻 Tdownload (i),还可以是接收视频资源中的视频数据包进入基站缓冲区的服务器队 列的时刻 r fc¾(o, 还可以为请求 /响应处理、 开关事件、 平均吞吐量、 初始 播放延迟、 缓冲程度、 播放列表、 MPD信息等, 本发明实施例对此并不做 限制。
S402 : 基站根据体验质量指标的测量值向终端发送响应消息; 其中, 该 响应消息包括基站下发给终端的第一视频资源、 基站为终端分配的接收第一 视频资源的下行资源以及基站为终端分配的向基站反馈可用缓冲区的容量的 上行资源。
具体的, 基站在接收到终端发送的 QoE指标的测量值后, 根据该 QoE指 标的测量值,检查是否符合基站侧预设的用户配置文件和网络运营策略规则, 并根据检查结果向终端发送响应消息。 该响应消息包括: 基站下发给终端的 第一视频资源、 基站为终端分配的接收上述第一视频资源的下行资源以及基 站为终端分配的向基站反馈可用缓冲区的容量的上行资源。
S403 : 基站接收终端反馈的终端的可用缓冲区的容量。
S404: 基站根据该可用缓冲区容量向终端发送第二视频资源。
具体的, 终端在基站所分配的下行资源上接收基站发送的第一视频资源 后, 将该第一视频资源大小与终端额可用缓冲区的容量进行比较, 并在第一 视频资源大小大于终端额可用缓冲区的容量时, 向基站反馈终端的可用缓冲 区的容量; 基站接收该可用缓冲区的容量, 并根据该可用缓冲区的容量向终 端下发第二视频资源, 以使终端将下发的第二视频资源作为新的第一视频资 源继续与终端的可用缓冲区的容量进行大小比较, 直至基站下发的视频资源 大小不大于终端的可用缓冲区的容量为止。
本发明实施例的面向用户体验质量的移动视频业务反馈方法, 通过基站 向终端发送第一视频资源, 终端将第一视频资源与终端的可用缓冲区的容量 进行大小比较, 并在基站下发的第一视频资源大小大于终端的可用缓冲区的 容量时, 向基站上报自己的可用缓冲区的容量大小, 使得基站能够根据该可 用缓冲区的容量确定合适大小的视频资源发送给终端, 有效避免了当基站下 发大量下行数据给终端时造成终端的缓冲区溢出, 从而提高了用户的体验质 量。
在上述图 4所示实施例的基础上, 作为本发明实施例的一种可行的实 施方式, 本实施例涉及的方法是基站通过终端上报的表示级别获知终端的 可用缓冲区的容量的具体流程。 进一步地, 上述基站接收终端反馈的所述 终端的可用缓冲区的容量, 包括: 基站接收终端根据终端的当前的视频播放 模式确定的与终端接收第一视频资源的最大速率对应的表示级别; 其中, 终 端接收第一视频资源的最大速率由终端根据 QoE指标的测量值确定; 基站根 据上述表示级别获知终端的可用缓冲区的容量大小。
具体的, 终端的可用缓冲区的容量可以通过多种形式告知基站, 本实施 例是通过终端确定不同视频播放模式下的表示级别告知基站当前终端的可用 缓冲区的容量, 该表示级别为终端接收第一视频资源的最大速率对应的表示 级别; 该接收第一视频资源的最大速率由终端根据 QoE指标的测量值确定, 具体为: 当上述 QoE指标的测量值包括 rfc¾(0、 (0和^^ (0时, 终端可 以根据该 QoE指标的测量值计算得到接收第一视频资源的最大速率,具体为: 终端首先根据公式 R 确定链路吞吐量 其
Figure imgf000022_0001
中, P为终端前一次接收的视频资源中的后 ^个视频数据包的个数; U 为终端前一次接收的视频资源中的第 个视频数据包进入到用户队列的时 亥 |J, rfc¾(o为终端前一次接收的视频资源中的第 个视频数据包进入服务器 队列的时刻, a^(0为终端前一次接收的视频资源中的第 个视频数据包 的大小。 这里的用户队列指的是进入终端缓冲区的视频数据包构成的队 歹 ϋ, 服务器队列指的是进入基站缓冲区的视频数据包构成的队列 (因为发 送给终端的视频数据包要先进入服务器队列, 然后再进入用户队列) ,
Tdownload ( ) - Tfetch ()即为终端前一次接收的视频资源中的第 个数据包从基站 到终端的传输时间。 在终端确定 Rt 之后, 终端将基站下发第一视频资源的源速率与 R 进 行匹配, 从而确定终端接收第一视频资源的最大速率。 这里需要注意的是, 基站可以通过广播或多播的方式告知终端下发第一视频资源的源速率的大 小。
当终端确定终端接收第一视频资源的最大速率之后, 终端会根据当前的 视频播放模式确定表示级别, 具体可以分为两种情况:
第一种: 若终端当前的视频播放模式为流模式, 则终端根据公式 e;^ =arg max b- b, <R^( ) = 1,2,...,N确定第一表示级别 β ; 其中, b,为表 示级别为 的编码视频比特速率.
第二种: 若终端当前的视频播放模式为缓冲模式, 则终端根据公式
Figure imgf000022_0002
-Ι,β:))确定第二表示级别 β ¾ ; 其中, β 为所述终端 前一次接收视频资源时的表示级别。 基站接收终端发送的表示级别, 进而获知终端的可用缓冲区的容量; 之 后, 可以根据所获知的可用缓冲区的容量向终端发送第二视频资源, 以使终 端可以再次执行比较操作。
本发明实施例的面向用户体验质量的移动视频业务反馈方法, 通过基站 向终端发送第一视频资源, 终端将第一视频资源与终端的可用缓冲区的容量 进行大小比较, 并在基站下发的第一视频资源大小大于终端的可用缓冲区的 容量时, 向基站上报自己的可用缓冲区的容量大小, 使得基站能够根据该可 用缓冲区的容量确定合适大小的视频资源发送给终端, 有效避免了当基站下 发大量下行数据给终端时造成终端的缓冲区溢出, 从而提高了用户的体验质 本领域普通技术人员可以理解: 实现上述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, 执行包括上述方法实施例的步骤; 而前述 的存储介质包括: R0M、 RAM, 磁碟或者光盘等各种可以存储程序代码的介质。
图 5为本发明提供的面向用户体验质量的移动视频业务反馈装置实施例 一的结构示意图。 该装置可以集成在终端中。 如图 5所示, 该装置包括: 接 收比较模块 10, 用于接收基站发送的第一视频资源, 并对所述第一视频资源 大小和所述装置的可用缓冲区的容量执行比较操作, 获取比较结果; 确定模 块 11, 包括反馈单元 111和存储单元 112; 若所述比较结果为不大于, 则所 述存储单元 112用于将所述第一视频资源存入所述可用缓冲区; 若所述比较 结果为大于, 则所述反馈单元 111用于向所述基站反馈所述可用缓冲区的容 量, 并丢弃所述第一视频资源, 以使所述基站根据所述可用缓冲区的容量向 所述装置下发第二视频资源;则所述接收比较模块 10还用于接收所述第二视 频资源, 并将所述第二视频资源作为新的第一视频资源与所述终端的可用缓 冲区的容量返回执行所述比较操作, 直至所述比较结果为不大于为止。
本发明实施例提供的面向用户体验质量的移动视频业务反馈装置, 可以 执行上述方法实施例, 其实现原理和技术效果类似, 在此不再赘述。
图 6为本发明提供的面向用户体验质量的移动视频业务反馈装置实施例 二的结构示意图。 在上述图 5所示实施例的基础上, 进一步地, 所述装置还 包括: 发送模块 12, 用于在所述接收比较模块 10接收基站发送的第一视频 资源之前, 向所述基站发送视频资源请求消息; 其中, 所述视频资源请求消 息中携带用户体验质量 QoE指标的测量值, 所述 QoE指标的测量值为一个或 多个测量值的集合; 则所述接收比较模块 10, 具体用于接收所述基站根据所 述 QoE指标的测量值发送的响应消息; 其中, 所述响应消息包括所述基站下 发给所述装置的所述第一视频资源、 所述基站为所述装置分配的接收所述第 一视频资源的下行资源以及所述基站为所述装置分配的向所述基站反馈所述 可用缓冲区的容量的上行资源。
本发明实施例提供的面向用户体验质量的移动视频业务反馈装置, 可以 执行上述方法实施例, 其实现原理和技术效果类似, 在此不再赘述。
进一步地, 上述反馈单元 111具体用于根据所述 QoE指标的测量值确定 所述装置接收所述第一视频资源的最大速率; 根据当前的视频播放模式确定 与所述装置接收所述第一视频资源的最大速率对应的表示级别; 将所述表示 级别发送给所述基站, 以使所述基站根据所述表示级别获知所述可用缓冲区 的容量大小。
进一步地,所述 QoE指标的测量值包括 r fc¾ (0、 和 ^ (0 ;其中, 7^„^(0为所述装置前一次接收的视频资源中的第 个视频数据包进入到用 户队列的时刻, 7^¾(0为所述装置前一次接收的视频资源中的第 个视频数 据包进入服务器队列的时刻, 为所述装置前一次接收的视频资源中 的第 个视频数据包的大小; 则所述反馈单元 111, 具体用于根据公式 ¾„ ∑ T r 确定链路吞吐量 ^ 其中, 所述 P为所述装置 尸 丄 前一次接收的视频资源中的后 /^个视频数据包的个数; 并根据所述基站下发 所述第一视频资源的源速率与所述¾ ^确定所述装置接收所述第一视频资源 的最大速率。
进一步地, 上述反馈单元 111, 具体用于若所述装置当前的视频播放模 式为流模式, 则根据公式 2 = arg m b, ; b,≤R (0 = 1,2, ..., N确定第一表示 级别 其中, 所述 b,为表示级别为 的编码视频比特速率; 若所述装置 当前的视频播放模式为缓冲模式, 则根据公式 = maX(l, - Ι, βΓ ))确 定第二表示级别 ojr¾ ; 其中, 所述 为所述装置前一次接收视频资源时 的表示级别。 进一步地,上述反馈单元 1 1 1具体用于若所述基站为所述装置分配物理 上行共享信道 PUSCH资源, 则所述反馈单元通过所述 PUSCH资源向所述基站 反馈所述可用缓冲区的容量;若所述基站未给所述装置分配所述 PUSCH资源, 则所述反馈单元通过物理上行控制信道 PUCCH资源向所述基站反馈所述可用 缓冲区的容量。
本发明实施例提供的面向用户体验质量的移动视频业务反馈装置, 可以 执行上述方法实施例, 其实现原理和技术效果类似, 在此不再赘述。
图 7为本发明提供的面向用户体验质量的移动视频业务反馈装置实施例 三的结构示意图, 该装置可以集成在基站中。 如图 7所示, 该装置包括: 第 一发送模块 20, 用于向终端发送第一视频资源; 第一接收模块 21, 用于接收 所述终端反馈的所述终端的可用缓冲区的容量; 第二发送模块 22, 用于根据 所述可用缓冲区容量向所述终端发送第二视频资源。
本发明实施例提供的面向用户体验质量的移动视频业务反馈装置, 可以 执行上述方法实施例, 其实现原理和技术效果类似, 在此不再赘述。
图 8为本发明提供的面向用户体验质量的移动视频业务反馈装置实施例 四的结构示意图。 在上述图 7所示实施例的基础上, 进一步地, 所述装置还 包括: 第二接收模块 23, 用于在所述第一发送模块 20 向终端发送第一视频 资源之前, 接收所述终端发送的视频资源请求消息; 其中, 所述视频资源请 求消息中携带用户体验质量 QoE指标的测量值, 所述 QoE的测量值为一个或 多个测量值的集合; 则所述第一发送模块 20, 具体用于根据所述 QoE指标的 测量值向所述终端发送响应消息; 其中, 所述响应消息包括所述装置下发给 所述终端的所述第一视频资源、 所述装置为所述终端分配的接收所述第一视 频资源的下行资源以及所述装置为所述终端分配的向所述基站反馈所述可用 缓冲区的容量的上行资源。
本发明实施例提供的面向用户体验质量的移动视频业务反馈装置, 可以 执行上述方法实施例, 其实现原理和技术效果类似, 在此不再赘述。
进一步地, 在上述图 8所示实施例的基础上, 上述第一接收模块 21, 包 括: 接收单元 210, 用于接收所述终端根据所述终端的当前的视频播放模式 确定的与所述终端接收所述第一视频资源的最大速率对应的表示级别;其中, 所述终端接收所述第一视频资源的最大速率由所述终端根据所述 QoE指标的 测量值确定; 确定单元 211, 用于根据所述表示级别获知所述终端的可用缓 冲区的容量大小。
本发明实施例提供的面向用户体验质量的移动视频业务反馈装置, 可以 执行上述方法实施例, 其实现原理和技术效果类似, 在此不再赘述。
图 9为本发明提供的面向用户体验质量的移动视频业务反馈设备实施例 一的结构示意图, 该设备可以为终端, 也可以集成在终端中。 如图 9所示, 该设备包括: 接收器 30, 用于接收基站发送的第一视频资源; 处理器 31, 用 于对所述第一视频资源大小和所述装置的可用缓冲区的容量执行比较操作, 获取比较结果; 还用于若所述比较结果为不大于, 则将所述第一视频资源存 入所述可用缓冲区; 还用于若所述比较结果为大于, 则向所述基站反馈所述 可用缓冲区的容量, 并丢弃所述第一视频资源, 以使所述基站根据所述可用 缓冲区的容量向所述设备下发第二视频资源;则所述接收器 30还用于接收所 述第二视频资源,所述处理器 31还用于将所述第二视频资源作为新的第一视 频资源与所述终端的可用缓冲区的容量返回执行所述比较操作, 直至所述比 较结果为不大于为止。
本发明实施例提供的面向用户体验质量的移动视频业务反馈设备, 可以 执行上述方法实施例, 其实现原理和技术效果类似, 在此不再赘述。
图 10 为本发明提供的面向用户体验质量的移动视频业务反馈设备实施 例二的结构示意图, 在上述图 9所示实施例的基础上, 进一步地, 上述设备 还包括: 发送器 32, 用于向所述基站发送视频资源请求消息; 其中, 所述视 频资源请求消息中携带用户体验质量 QoE指标的测量值, 所述 QoE指标的测 量值为一个或多个测量值的集合;则所述接收器 30具体用于接收所述基站根 据所述 QoE指标的测量值发送的响应消息; 其中, 所述响应消息包括所述基 站下发给所述设备的所述第一视频资源、 所述基站为所述设备分配的接收所 述第一视频资源的下行资源以及所述基站为所述设备分配的向所述基站反馈 所述可用缓冲区的容量的上行资源。
本发明实施例提供的面向用户体验质量的移动视频业务反馈设备, 可以 执行上述方法实施例, 其实现原理和技术效果类似, 在此不再赘述。 可选的,上述处理器 31还可以用于根据所述 QoE指标的测量值确定所述 设备接收所述第一视频资源的最大速率; 根据当前的视频播放模式确定与所 述设备接收所述第一视频资源的最大速率对应的表示级别; 将所述表示级别 发送给所述基站, 以使所述基站根据所述表示级别获知所述可用缓冲区的容 量大小。
可选的, 上述 QoE指标的测量值包括 ¾ (0 ^(0和^') ; 其中, ^(0为所述设备前一次接收的视频资源中的第 ^个视频数据包进入到用 户队列的时刻, 7)^(0为所述设备前一次接收的视频资源中的第 个视频数 据包进入服务器队列的时刻, 为所述设备前一次接收的视频资源中 的第 个视频数据包的大小; 则上述处理器 31 还可以用于根据公式 其中, 所述 P为所述设备
Figure imgf000027_0001
前一次接收的视频资源中的后 ^个视频数据包的个数; 并根据所述基站下发 所述第一视频资源的源速率与所述 确定所述设备接收所述第一视频资源 的最大速率。
可选的,上述处理器 31还可以用于若所述设备当前的视频播放模式为流 模式, 则根据公式 2: = arg mp b, ; b,≤R (0 = 1,2, ..., N确定第一表示级别
Q= ·, 其中, 所述 b,为表示级别为 的编码视频比特速率; 若所述设备当前 的视频播放模式为缓冲模式, 则根据公式
Figure imgf000027_0002
- l,e ))确定第 二表示级别 β ¾ ; 其中, 所述 为所述设备前一次接收视频资源时的表 示级别。 可选的,上述处理器 31还可以用于若所述基站为所述设备分配物理上行 共享信道 PUSCH资源, 则所述处理器通过所述 PUSCH资源向所述基站反馈所 述可用缓冲区的容量; 若所述基站未给所述设备分配所述 PUSCH资源, 则所 述处理器通过物理上行控制信道 PUCCH资源向所述基站反馈所述可用缓冲区 的容量。 本发明实施例提供的面向用户体验质量的移动视频业务反馈设备, 可以 执行上述方法实施例, 其实现原理和技术效果类似, 在此不再赘述。
图 1 1 为本发明提供的面向用户体验质量的移动视频业务反馈设备实施 例三的结构示意图。该设备可以为基站,也可以集成在基站中。如图 11所示, 该设备包括: 发送器 40, 用于向终端发送第一视频资源; 接收器 41, 用于接 收所述终端反馈的所述终端的可用缓冲区的容量; 所述发送器 40, 还用于根 据所述可用缓冲区容量向所述终端发送第二视频资源。
本发明实施例提供的面向用户体验质量的移动视频业务反馈设备, 可以 执行上述方法实施例, 其实现原理和技术效果类似, 在此不再赘述。
可选的, 上述接收器 41还可以用于接收所述终端发送的视频资源请求 消息; 其中, 所述视频资源请求消息中携带用户体验质量 QoE指标的测量值, 所述 QoE的测量值为一个或多个测量值的集合; 则上述发送器 40, 具体用于 根据所述 QoE指标的测量值向所述终端发送响应消息; 其中, 所述响应消息 包括所述设备下发给所述终端的所述第一视频资源、 所述设备为所述终端分 配的接收所述第一视频资源的下行资源以及所述设备为所述终端分配的向所 述基站反馈所述可用缓冲区的容量的上行资源。
可选的, 上述接收器 41还可以用于接收所述终端根据所述终端的当前 的视频播放模式确定的与所述终端接收所述第一视频资源的最大速率对应的 表示级别; 其中, 所述终端接收所述第一视频资源的最大速率由所述终端根 据所述 QoE指标的测量值确定; 并根据所述表示级别获知所述终端的可用缓 冲区的容量大小。
本发明实施例提供的面向用户体验质量的移动视频业务反馈设备, 可以 执行上述方法实施例, 其实现原理和技术效果类似, 在此不再赘述。
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、一种面向用户体验质量的移动视频业务反馈方法,其特征在于,包括: 终端接收基站发送的第一视频资源, 并对所述第一视频资源大小和所述 终端的可用缓冲区的容量执行比较操作, 获取比较结果;
所述终端根据所述比较结果确定是否将所述第一视频资源存入所述可用 缓冲区;
若所述比较结果为不大于, 则所述终端将所述第一视频资源存入所述可 用缓冲区;
若所述比较结果为大于, 则所述终端向所述基站反馈所述可用缓冲区的 容量, 并丢弃所述第一视频资源, 以使所述基站根据所述可用缓冲区的容量 向所述终端下发第二视频资源;
所述终端接收所述第二视频资源, 并将所述第二视频资源作为新的第一 视频资源与所述终端的可用缓冲区的容量返回执行所述比较操作, 直至所述 比较结果为不大于为止。
2、 根据权利要求 1所述的方法, 其特征在于, 所述终端接收基站发送的 第一视频资源之前, 还包括:
所述终端向所述基站发送视频资源请求消息; 其中, 所述视频资源请求 消息中携带用户体验质量 QoE指标的测量值, 所述 QoE指标的测量值为一个 或多个测量值的集合;
则所述终端接收基站发送的第一视频资源, 包括:
所述终端接收所述基站根据所述 QoE指标的测量值发送的响应消息; 其 中, 所述响应消息包括所述基站下发给所述终端的所述第一视频资源、 所述 基站为所述终端分配的接收所述第一视频资源的下行资源以及所述基站为所 述终端分配的向所述基站反馈所述可用缓冲区的容量的上行资源。
3、 根据权利要求 2所述的方法, 其特征在于, 所述终端向所述基站反馈 所述可用缓冲区的容量, 包括:
所述终端根据所述 QoE指标的测量值确定所述终端接收所述第一视频资 源的最大速率;
所述终端根据当前的视频播放模式确定与所述终端接收所述第一视频资 源的最大速率对应的表示级别; 所述终端将所述表示级别发送给所述基站, 以使所述基站根据所述表示 级别获知所述可用缓冲区的容量大小。
4、 根据权利要求 3所述的方法, 其特征在于, 所述 QoE指标的测量值包 括 fc (0、 。 (0和 ^ (0 ; 其中, 为所述终端前一次接收的视频 资源中的第 个视频数据包进入到用户队列的时刻, r fc¾ (0为所述终端前一 次接收的视频资源中的第 个视频数据包进入服务器队列的时刻, Spa 为所述终端前一次接收的视频资源中的第 个视频数据包的大小; 则所述 终端根据所述 QoE指标的测量值确定所述终端接收所述第一视频资源的最大 速率, 包括:
所述终端根据公式 R 确定链路吞吐量 其
Figure imgf000030_0001
中,所述 P为所述终端前一次接收的视频资源中的后 ^个视频数据包的个数; 所述终端根据所述基站下发所述第一视频资源的源速率与所述¾ ^确定 所述终端接收所述第一视频资源的最大速率。
5、 根据权利要求 4所述的方法, 其特征在于, 所述终端根据当前的视频 播放模式确定与所述终端接收所述第一视频资源的最大速率对应的表示级 别, 包括:
若所述终端当前的视频播放模式为流模式, 则所述终端根据公式 QZP P = arg max b - bt≤ Rthrpt {i) i = 1,2,..., N确定第一表示级别 β ;其中,所述 b,为 表示级别为 的编码视频比特速率;
若所述终端当前的视频播放模式为缓冲模式, 则所述终端根据公式 Q!:ch = max(l, min(2r _ 1, β ))确定第二表示级别 Q:h; 其中, 所述 β ν为所述 终端前一次接收视频资源时的表示级别。
6、 根据权利要求 2所述的方法, 其特征在于, 所述终端向所述基站反
7、一种面向用户体验质量的移动视频业务反馈方法,其特征在于,包括: 基站向终端发送第一视频资源;
所述基站接收所述终端反馈的所述终端的可用缓冲区的容量;
所述基站根据所述可用缓冲区容量向所述终端发送第二视频资源。
8、 根据权利要求 7所述的方法, 其特征在于, 所述基站向终端发送第一 视频资源之前, 还包括:
所述基站接收所述终端发送的视频资源请求消息; 其中, 所述视频资源 请求消息中携带用户体验质量 QoE指标的测量值, 所述 QoE的测量值为一个 或多个测量值的集合;
则所述基站向终端发送第一视频资源, 包括:
所述基站根据所述 QoE指标的测量值向所述终端发送响应消息; 其中, 所述响应消息包括所述基站下发给所述终端的所述第一视频资源、 所述基站 为所述终端分配的接收所述第一视频资源的下行资源以及所述基站为所述终 端分配的向所述基站反馈所述可用缓冲区的容量的上行资源。
9、 根据权利要求 8所述的方法, 其特征在于, 所述基站接收所述终端反 馈的所述终端的可用缓冲区的容量, 包括:
所述基站接收所述终端根据所述终端的当前的视频播放模式确定的与所 述终端接收所述第一视频资源的最大速率对应的表示级别; 其中, 所述终端 接收所述第一视频资源的最大速率由所述终端根据所述 QoE指标的测量值确 定;
所述基站根据所述表示级别获知所述终端的可用缓冲区的容量大小。
10、 一种面向用户体验质量的移动视频业务反馈装置, 其特征在于, 包 括:
接收比较模块, 用于接收基站发送的第一视频资源, 并对所述第一视频 资源大小和所述装置的可用缓冲区的容量执行比较操作, 获取比较结果; 确定模块, 包括反馈单元和存储单元;
若所述比较结果为不大于, 则所述存储单元用于将所述第一视频资源存 入所述可用缓冲区;
若所述比较结果为大于, 则所述反馈单元用于向所述基站反馈所述可用 缓冲区的容量, 并丢弃所述第一视频资源, 以使所述基站根据所述可用缓冲 区的容量向所述装置下发第二视频资源;
则所述接收比较模块还用于接收所述第二视频资源, 并将所述第二视频 资源作为新的第一视频资源与所述终端的可用缓冲区的容量返回执行所述比 较操作, 直至所述比较结果为不大于为止。
11、 根据权利要求 10所述的装置, 其特征在于, 所述装置还包括: 发送模块,用于在所述接收比较模块接收基站发送的第一视频资源之前, 向所述基站发送视频资源请求消息; 其中, 所述视频资源请求消息中携带用 户体验质量 QoE指标的测量值, 所述 QoE指标的测量值为一个或多个测量值 的集合;
则所述接收比较模块, 具体用于接收所述基站根据所述 QoE指标的测量 值发送的响应消息; 其中, 所述响应消息包括所述基站下发给所述装置的所 述第一视频资源、 所述基站为所述装置分配的接收所述第一视频资源的下行 资源以及所述基站为所述装置分配的向所述基站反馈所述可用缓冲区的容量 的上行资源。
12、 根据权利要求 11所述的装置, 其特征在于, 所述反馈单元具体用于 根据所述 QoE 指标的测量值确定所述装置接收所述第一视频资源的最大速 率; 根据当前的视频播放模式确定与所述装置接收所述第一视频资源的最大 速率对应的表示级别; 将所述表示级别发送给所述基站, 以使所述基站根据 所述表示级别获知所述可用缓冲区的容量大小。
13、 根据权利要求 12所述的装置, 其特征在于, 所述 QoE指标的测量值 包括^ ¾(0、 ^(0和 ^(0 ; 其中, ^(0为所述装置前一次接收的视 频资源中的第 个视频数据包进入到用户队列的时刻, r fc¾(o为所述装置前 一次接收的视频资源中的第 个视频数据包进入服务器队列的时刻, ^。^(0为所述装置前一次接收的视频资源中的第 个视频数据包的大小;则 所述反馈单元, 具体用于根据公式 R = ∑ -r 确定链路吞
尸 吐量 „;其中,所述 P为所述装置前一次接收的视频资源中的后 ^个视频数 据包的个数; 并根据所述基站下发所述第一视频资源的源速率与所述¾ ^确 定所述装置接收所述第一视频资源的最大速率。
14、 根据权利要求 13所述的装置, 其特征在于, 所述反馈单元, 具体用 于若所述装置当前的视频播放模式为流模式, 则根据公式 e;^ = arg max b - b^ R^i) = 1,2, ..., N确定第一表示级别 β ;其中,所述 b,为 表示级别为 的编码视频比特速率; 若所述装置当前的视频播放模式为缓冲 模式,则根据公式 2 ¾ = max(l, min(2 - l, 2: ))确定第二表示级别 β ;其中, 所述 为所述装置前一次接收视频资源时的表示级别。
15、 根据权利要求 11 所述的装置, 其特征在于, 所述反馈单元具体 用于若所述基站为所述装置分配物理上行共享信道 PUSCH资源, 则所述反馈 单元通过所述 PUSCH资源向所述基站反馈所述可用缓冲区的容量; 若所述基 站未给所述装置分配所述 PUSCH资源, 则所述反馈单元通过物理上行控制信 道 PUCCH资源向所述基站反馈所述可用缓冲区的容量。
16、 一种面向用户体验质量的移动视频业务反馈装置, 其特征在于, 包 括:
第一发送模块, 用于向终端发送第一视频资源;
第一接收模块,用于接收所述终端反馈的所述终端的可用缓冲区的容量; 第二发送模块, 用于根据所述可用缓冲区容量向所述终端发送第二视频 资源。
17、 根据权利要求 16所述的装置, 其特征在于, 所述装置还包括: 第二接收模块,用于在所述第一发送模块向终端发送第一视频资源之前, 接收所述终端发送的视频资源请求消息; 其中, 所述视频资源请求消息中携 带用户体验质量 QoE指标的测量值, 所述 QoE的测量值为一个或多个测量值 的集合;
则所述第一发送模块, 具体用于根据所述 QoE指标的测量值向所述终端 发送响应消息; 其中, 所述响应消息包括所述装置下发给所述终端的所述第 一视频资源、 所述装置为所述终端分配的接收所述第一视频资源的下行资源 以及所述装置为所述终端分配的向所述基站反馈所述可用缓冲区的容量的上 行资源。
18、 根据权利要求 17所述的装置, 其特征在于, 所述第一接收模块, 包 括: 接收单元, 用于接收所述终端根据所述终端的当前的视频播放模式确定 的与所述终端接收所述第一视频资源的最大速率对应的表示级别; 其中, 所 述终端接收所述第一视频资源的最大速率由所述终端根据所述 QoE指标的测 量值确定;
确定单元, 用于根据所述表示级别获知所述终端的可用缓冲区的容量大 小。
19、 一种面向用户体验质量的移动视频业务反馈设备, 其特征在于, 包 括:
接收器, 用于接收基站发送的第一视频资源;
处理器, 用于对所述第一视频资源大小和所述装置的可用缓冲区的容量 执行比较操作, 获取比较结果; 还用于若所述比较结果为不大于, 则将所述 第一视频资源存入所述可用缓冲区; 还用于若所述比较结果为大于, 则向所 述基站反馈所述可用缓冲区的容量, 并丢弃所述第一视频资源, 以使所述基 站根据所述可用缓冲区的容量向所述设备下发第二视频资源;
则所述接收器还用于接收所述第二视频资源, 所述处理器还用于将所述 第二视频资源作为新的第一视频资源与所述终端的可用缓冲区的容量返回执 行所述比较操作, 直至所述比较结果为不大于为止。
20、 根据权利要求 19所述的设备, 其特征在于, 所述设备还包括: 发送器, 用于向所述基站发送视频资源请求消息; 其中, 所述视频资源 请求消息中携带用户体验质量 QoE指标的测量值, 所述 QoE指标的测量值为 一个或多个测量值的集合;
则所述接收器具体用于接收所述基站根据所述 QoE指标的测量值发送的 响应消息; 其中, 所述响应消息包括所述基站下发给所述设备的所述第一视 频资源、 所述基站为所述设备分配的接收所述第一视频资源的下行资源以及 所述基站为所述设备分配的向所述基站反馈所述可用缓冲区的容量的上行资 源。
21、 根据权利要求 20所述的设备, 其特征在于, 所述处理器具体用于根 据所述 QoE指标的测量值确定所述设备接收所述第一视频资源的最大速率; 根据当前的视频播放模式确定与所述设备接收所述第一视频资源的最大速率 对应的表示级别; 将所述表示级别发送给所述基站, 以使所述基站根据所述 表示级别获知所述可用缓冲区的容量大小。
22、 根据权利要求 21所述的设备, 其特征在于, 所述 QoE指标的测量值 包括^ ¾(0、 ^(0和 ^(0; 其中, ^(0为所述设备前一次接收的视 频资源中的第 个视频数据包进入到用户队列的时刻, Γ ¾(0为所述设备前 一次接收的视频资源中的第 个视频数据包进入服务器队列的时刻, ^。^(0为所述设备前一次接收的视频资源中的第 个视频数据包的大小;则 所述处理器, 具体用于根据公式 ^=丄 ∑ ^ 确定链路吞吐
P ) - )
量 ; 其中, 所述 P 为所述设备前一次接收的视频资源中的后 个视频数 据包的个数; 并根据所述基站下发所述第一视频资源的源速率与所述¾ ^确 定所述设备接收所述第一视频资源的最大速率。
23、 根据权利要求 22所述的设备, 其特征在于, 所述处理器, 具体用于 若所述设备当前的视频播放模式为流模式 , 则根据公式 QZP P = arg max b- bt≤ Rthrpt{i) i = 1,2,...,N确定第一表示级别 β ;其中,所述 b,为 表示级别为 的编码视频比特速率; 若所述设备当前的视频播放模式为缓冲 模式,则根据公式 2 fc¾ =max(l,min(2 -l,2:))确定第二表示级别 β ;其中, 所述 为所述设备前一次接收视频资源时的表示级别。
24、 根据权利要求 20所述的设备, 其特征在于, 所述处理器具体用于若 所述基站为所述设备分配物理上行共享信道 PUSCH资源, 则所述处理器通过 所述 PUSCH资源向所述基站反馈所述可用缓冲区的容量; 若所述基站未给所 述设备所述 PUSCH资源, 则所述处理器通过物理上行控制信道 PUCCH资源向 所述基站反馈所述可用缓冲区的容量。
25、 一种面向用户体验质量的移动视频业务反馈设备, 其特征在于, 包 括:
发送器, 用于向终端发送第一视频资源;
接收器, 用于接收所述终端反馈的所述终端的可用缓冲区的容量; 所述发送器, 还用于根据所述可用缓冲区容量向所述终端发送第二视频 资源。
26、 根据权利要求 25所述的设备, 其特征在于, 所述接收器还用于接收 所述终端发送的视频资源请求消息; 其中, 所述视频资源请求消息中携带用 户体验质量 QoE指标的测量值, 所述 QoE的测量值为一个或多个测量值的集 合.
则所述发送器, 具体用于根据所述 QoE指标的测量值向所述终端发送响 应消息; 其中, 所述响应消息包括所述设备下发给所述终端的所述第一视频 资源、 所述设备为所述终端分配的接收所述第一视频资源的下行资源以及所 述设备为所述终端分配的向所述基站反馈所述可用缓冲区的容量的上行资 源。
27、 根据权利要求 26所述的设备, 其特征在于, 所述接收器, 具体用于 接收所述终端根据所述终端的当前的视频播放模式确定的与所述终端接收所 述第一视频资源的最大速率对应的表示级别; 其中, 所述终端接收所述第一 视频资源的最大速率由所述终端根据所述 QoE指标的测量值确定; 并根据所 述表示级别获知所述终端的可用缓冲区的容量大小。
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