WO2011047335A1 - Adaptively streaming multimedia - Google Patents
Adaptively streaming multimedia Download PDFInfo
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- WO2011047335A1 WO2011047335A1 PCT/US2010/052943 US2010052943W WO2011047335A1 WO 2011047335 A1 WO2011047335 A1 WO 2011047335A1 US 2010052943 W US2010052943 W US 2010052943W WO 2011047335 A1 WO2011047335 A1 WO 2011047335A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/535—Tracking the activity of the user
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/10—Architectures or entities
- H04L65/1059—End-user terminal functionalities specially adapted for real-time communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/61—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio
- H04L65/612—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio for unicast
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/61—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio
- H04L65/613—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio for the control of the source by the destination
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/75—Media network packet handling
- H04L65/756—Media network packet handling adapting media to device capabilities
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/75—Media network packet handling
- H04L65/762—Media network packet handling at the source
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/80—Responding to QoS
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/2866—Architectures; Arrangements
- H04L67/30—Profiles
- H04L67/303—Terminal profiles
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/10—Flow control between communication endpoints
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
Definitions
- the present disclosure generally relates to streaming multimedia content over a network, and more specifically, to adaptive streaming of multimedia content.
- a wireless communication system may provide communication for a number of access terminals, such as wireless telephones, each of which may be serviced by an access point.
- An access terminal may communicate with one or more access points via transmissions on an uplink and a downlink.
- the uplink (or reverse link) refers to the communication link from the access terminal to the access point
- the downlink (or forward link) refers to the communication link from the access point to the access terminal.
- CDMA code division multiple access
- TDMA time division multiple access
- FDMA frequency division multiple access
- OFDMA orthogonal frequency division multiple access
- SC-FDMA single-carrier frequency division multiple access
- Access terminals include electronic devices such as mobile telephone handsets and other mobile devices that may be configured to receive broadcasts of sports, entertainment, or informational multimedia programs. For example, audio and, or video data may be communicated via a broadband broadcast communications link to the electronic devices.
- audio and, or video data may be communicated via a broadband broadcast communications link to the electronic devices.
- a method of adaptively streaming multimedia content over a network comprises receiving, at a user terminal, a multimedia stream.
- the multimedia stream comprises a plurality of multimedia segments, and each multimedia segment has at least one multimedia characteristic.
- the method further comprises monitoring at least one parameter of the user terminal and selecting a target characteristic.
- the target characteristic is based on the at least one monitored parameter of the user terminal.
- the method further comprises requesting a multimedia segment having the target characteristic.
- an apparatus capable of adaptively streaming multimedia content over a network.
- the apparatus comprises a user terminal.
- the user terminal comprises a receiver configured to receive a multimedia stream.
- the multimedia stream comprises a plurality of multimedia segments, and each multimedia segment has at least one multimedia characteristic.
- the user terminal further comprises an adaptive stream manager configured to monitor at least one parameter of the user terminal.
- the adaptive stream manager is further configured to select a target characteristic based on the at least one monitored parameter of the user terminal.
- the adaptive stream manager is further configured to request, from a media server, a multimedia segment having the target characteristic.
- an apparatus capable of adaptively streaming multimedia content over a network.
- the apparatus comprises means for receiving, at a user terminal, a multimedia stream.
- the multimedia stream comprises a plurality of multimedia segments, and each multimedia segment has at least one multimedia characteristic.
- the apparatus further comprises means for monitoring at least one parameter of the user terminal.
- the apparatus further comprises means for selecting a target characteristic, based on the at least one monitored parameter of the user terminal.
- the apparatus further comprises means for requesting a multimedia segment having the target characteristic.
- a non-transitory computer readable medium comprises code capable of causing a computer to receive, at a user terminal, a multimedia stream.
- the multimedia stream comprises a plurality of multimedia segments, and each multimedia segment has at least one multimedia characteristic.
- the non-transitory computer readable medium further comprises code capable of causing a computer to monitor at least one parameter of the user terminal.
- the non-transitory computer readable medium further comprises code capable of causing a computer to select a target characteristic, based on the at least one monitored parameter of the user terminal.
- the non-transitory computer readable medium further comprises code capable of causing a computer to request, from a media server, a multimedia segment having the target characteristic.
- FIG. 1 illustrates an exemplary wireless multimedia streaming network.
- FIG. 2 illustrates an exemplary implementation of HTTP adaptive streaming on a media server, according to an embodiment.
- FIG. 3 illustrates an exemplary mobile terminal, according to an embodiment.
- FIG. 4 illustrates an exemplary embodiment of a sensor suite of a user terminal.
- FIG. 5 illustrates an exemplary method of streaming multimedia content from a media server to a user terminal, according to an embodiment.
- FIG. 6 illustrates an exemplary method of predicting a future value of a parameter, according to an embodiment.
- FIG. 7 illustrates an exemplary embodiment of an adaptive stream manager.
- Embodiments of the invention relate to methods and apparatuses for receiving media content on a device.
- the device can adapt the received content based on certain conditions.
- adaptive media streaming can allow a mobile device to vary the quality of a multimedia stream based on certain conditions, such as network bandwidth, battery conditions, direction of travel of the device, or a variety of other conditions.
- the device can continue to provide a robust multimedia experience for a user even while parameters of the device are changing over time.
- the device monitors it's own parameters and then predicts future values of such parameters in order to adapt the received media content. For example, if the device detects that is accelerating to a high speed, such as when a user enters a freeway, the device may predict that based on the acceleration parameter it will continue moving to an even higher speed. Using this information, the device may request lower resolution media due to higher data errors predicted at the increased ground speed of the device.
- the media files are divided into segments before being transmitted from a media server or other content provider, to a user's device.
- each segment of the media file has a particular characteristic. Exemplary characteristics include, but are not limited to: bitrate, quality, compression ratio, codec type, or number of audio tracks.
- the server may store a plurality of such segments for each media file so that for any particular media file, there are a plurality of media segments that can be chosen for any point in time in that media file. This allows the device to request different segments of the same file depending on the detected parameters of the user's device. Because different segments may require more or less bandwidth, or have more or less resolution, the system can determine the best quality segment to play for the user.
- CDMA Code Division Multiple Access
- TDMA Time Division Multiple Access
- FDMA Frequency Division Multiple Access
- OFDMA Orthogonal FDMA
- SC-FDMA Single-Carrier FDMA
- a CDMA network may implement a radio technology such as Universal Terrestrial Radio Access (UTRA), cdma2000, etc.
- UTRA includes Wideband-CDMA (W-CDMA) and Low Chip Rate (LCR).
- cdma2000 covers IS-2000, IS-95 and IS-856 standards.
- a TDMA network may implement a radio technology such as Global System for Mobile Communications (GSM).
- GSM Global System for Mobile Communications
- An OFDMA network may implement a radio technology such as Evolved UTRA (E-UTRA), IEEE 802.11, IEEE 802.16, IEEE 802.20, Flash-OFDM", etc.
- E-UTRA, E-UTRA, and GSM are part of Universal Mobile Telecommunication System (UMTS).
- UMTS Universal Mobile Telecommunication System
- LTE Long Term Evolution
- UTRA, E-UTRA, GSM, UMTS and LTE are described in documents from an organization named "3rd Generation Partnership Project" (3GPP).
- cdma2000 is described in documents from an organization named "3rd Generation Partnership Project 2" (3GPP2).
- FIG. 1 illustrates an exemplary wireless multimedia streaming network 100.
- the wireless multimedia streaming network 100 is configured to support multimedia streaming from a media server 110 to a mobile terminal 120.
- the mobile terminal 120 can connect to a base station, such as base station 130 and base station 140, using a data transfer standard as discussed above.
- the base stations 130 and 140 are connected a network 150.
- the network 150 can be, for example, the Internet.
- the mobile terminal 120 can access the media server 110 to download multimedia content. More specifically, in one embodiment, the mobile terminal 120 can stream audio or video from the media server 110.
- the quality of its wireless link with the base station 130 can vary, and the multimedia stream from the media server 110 may be interrupted or otherwise limited.
- the mobile terminal 120 may move into an area with greater signal attenuation.
- the signal-to-noise ratio (SNR) from the base station 130 may cause the data rate to drop.
- the mobile terminal 120 may be moving at a high rate of speed, roaming between sectors of the base station 130 or between the base station 130 and the base station 140.
- the transition from the base station 130 to the base station 140 may increase latency of data packets or cause the data not to be delivered.
- congestion in the network 150 may affect delivery of the multimedia stream from the media server 110.
- HTTP adaptive streaming can allow a mobile device, such as the mobile terminal 120, to vary the quality of a multimedia stream based on certain conditions, such as network bandwidth.
- FIG. 2 illustrates an exemplary implementation of HTTP adaptive streaming on a media server 1 10.
- the media server 110 can be a media server such as the media server 110 discussed above with respect to FIG. 1.
- the media server 110 encodes source data 220 with an encoder 230.
- Source data 220 can be high quality multimedia content, such as audio or video encoded at a high bitrate or possibly with a lossless codec.
- the encoder 230 can encode the source data 220 into a number of different quality levels or bitrates. In the illustrated embodiment, the encoder 230 encodes the source data 220 into a high bitrate storage 240, a medium bitrate storage 250, and a low bitrate storage 260.
- the encoder 230 can use a video compression technique known in the art such as, for example, MPEG-2, MPEG-4, or H.264/MPEG-4 Advanced Video Coding (AVC).
- the encoder 230 breaks each of the multimedia streams 240, 250, and 260 into a number of stream segments that can be accessed individually via a HTTP server 270.
- a directory manifest file 280 can contain a list of available stream bitrates in, for example, an HTTP accessible XML format.
- a terminal accessing the media server 110 can dynamically adjust the bitrate of the streaming multimedia content by requesting the appropriate stream segments as network conditions change.
- the stream segments can be stored for later retrieval.
- the segments can be any size such as, for example, five seconds of content.
- the encoder 230 can encode the source data 220 at multiple segment sizes for each bitrate. For example, the encoder 230 can encode the high bitrate storage 240 in both one-second and five-second segments, which can be accessed individually via the HTTP server 270 as individual Internet addresses in one embodiment.
- an accessing terminal such as mobile terminal 120 can choose the stream segments to download from the media server 110 based on a variety of mobile device data. Modern devices now have access to a variety of available data.
- FIG. 3 illustrates an exemplary mobile terminal 120 that is capable of using additional parameters to predict future bandwidth needs.
- the mobile terminal 120 includes a modem processor 320, a media processor 330, and a sensor suite 340.
- the modem processor 320 serves to provide a data link through which the mobile terminal 120 can communicate with a media server such as, for example, the media server 110 discussed above with respect to FIG. 2.
- the modem processor 320 can be, for example, a baseband chip or module.
- the modem processor 320 can include a modem 322 and a modem buffer 324.
- the modem 322 serves to translate a radio link into data that can be understood by the modem processor 320.
- the modem buffer 324 serves to buffer incoming data that has not yet been processed.
- the media processor 330 serves to manage an incoming multimedia stream and to prepare the stream for presentation to a user.
- the media processor 330 can be, for example, an application processor.
- the media processor 330 includes one or more codec's 332, media buffers 334, and an adaptive stream manager 336.
- the codecs 332, the media buffers 334, and the adaptive stream manager 336 are implemented in software.
- the codecs 332 serve to decode the multimedia stream segments into a raw format compatible with a presentation layer.
- the media buffers 334 serve to create a reserve of streaming media, which can be used in case there is an interruption in data transmission.
- the adaptive stream manager 336 serves to manage the multimedia stream.
- the adaptive stream manager 336 monitors the mobile terminal 120 and network status, including the including sensors 340, predicts future needs for multimedia stream segments, requests the appropriate segments from a media server such as media server 110 discussed above with respect to FIG. 2.
- FIG. 4 illustrates an exemplary embodiment of a sensor suite 340 of a user terminal such as the mobile terminal 120 described above with respect to FIG. 3.
- the sensor suite 340 includes an accelerometer 420, a global positioning system (GPS) or location based services (LBS) module 430, a proximity sensor 340, a microphone 440, a camera 450, a light sensor 470, a compass 480, and a gyroscope 490.
- the sensors 340, 420, 430, 440, 450, 460, 470, 480, and 490 can be variously integrated with other components of the mobile terminal 120 or can be individual components.
- FIG. 5 illustrates an exemplary method 500 of streaming multimedia content from a media server to a user terminal.
- the media server and user terminal can be media server 110 and mobile terminal 120, respectively, as discussed above with respect to FIG. 1.
- the method 500 can be at least partially implemented with, for example, the adaptive stream manager 336 described above with respect to FIG. 3.
- the mobile terminal 120 receives multimedia stream segments from the media server 110.
- Each stream segment can have multimedia characteristics that the adaptive stream manager 336 may use to determine which segment to download.
- Exemplary characteristics include, but are not limited to: bitrate, quality, compression ratio, codec type, number of audio tracks, etc.
- the adaptive stream manager 336 monitors at least one parameter of the user terminal.
- the adaptive stream manager 336 can monitor parameters including, but not limited to: media player buffer conditions, network connection bandwidth, network connection latency, network connection type, radio signal strength, a number of IP socket data connections available, an estimated multimedia clip length, user terminal location, user terminal speed, user terminal direction, user terminal acceleration, a user requested quality level, estimated video quality, estimated sound quality, mobile terminal power consumption, remaining battery life, and/or the mobile terminal power source.
- the media player buffer conditions correspond to the size of a buffer such as media buffer 334 discussed above with respect to FIG. 3.
- Media player buffer conditions can also include the rate at which the buffer is growing or being consumed.
- Network connection bandwidth can include wireless network bandwidth, Internet bandwidth, or the combination of the two.
- Network and ratio information can be obtained, for example, from the modem processor 320, and can include information such as network connection bandwidth, network connection latency, network connection type, radio signal strength, and the number of IP socket data connections available.
- Location information can be obtained, for example, from the GPS/LBS module 430 in the sensor suite 340 and can include such information as user terminal location, user terminal speed, user terminal direction, and user terminal acceleration.
- the adaptive stream manager 336 predicts a future value of one or more of these parameters. For example, the adaptive stream manager 336 can compare current bandwidth with historical bandwidth for various time frames. Historical data may indicate that available bandwidth is likely to decrease during peak hours. Therefore, the adaptive stream manager 336 may predict that a decreasing bandwidth will continue to do so. In another example, historical data may show that a hilly area has poor reception. Therefore, the adaptive stream manager 336 may predict that signal strength is about to decline because the mobile terminal 120 is headed towards the hilly area. In yet another example, the adaptive stream manager 336 may predict that a buffer, such as the media buffer 334, will soon be full based on a current buffer fill rate. In one embodiment, as part of the prediction process, the adaptive stream manager 336 may maintain a history of monitored parameter values and correlate the historical values in order to predict future changes, as discussed below with respect to FIG. 6.
- the adaptive stream manager 336 selects a target multimedia characteristic based on the future value of the parameter that is predicted at 530.
- the target multimedia characteristic can be any characteristic that helps fulfill a preset goal. For example, a user may set the adaptive stream manager 336 to prioritize continuity over quality. Alternatively, the user may set the adaptive stream manager 336 to prioritize quality, which could result in longer buffering periods or discontinuity during playback. In various other examples, a user could set the adaptive stream manager 336 to prioritize battery life, latency while seeking or fast- forwarding, audio quality, memory usage, etc. The user need not specifically set the behavior of the adaptive stream manager 336.
- the behavior of the adaptive stream manager 336 is preset by the manufacturer or is adaptive within preset bounds.
- the adaptive stream manager 336 selects the target multimedia characteristic, by following a hard-coded decision tree. For example, the adaptive stream manager 336 may perform a bandwidth prediction by default and target the highest resolution video that can be transported over the predicted bandwidth.
- the adaptive stream manager 336 requests, from the media server 110, a multimedia segment having the target characteristic selected at 540.
- a number of scenarios will for exemplary purposes only. A skilled artisan will understand that there are many variations of the method 500 within the scope of the present disclosure.
- the adaptive stream manager 336 may be set to prioritize both uninterrupted playback.
- the adaptive stream manager 336 may monitor bandwidth, buffer status, and GPS/LBS information.
- the adaptive stream manager 336 may detect that the mobile terminal 120 is accelerating at a rate that has, in the past, caused a decrease in available bandwidth. Thus, the adaptive stream manager 336 may predict that available bandwidth is about to decline.
- the adaptive stream manager 336 may select a target characteristic of low bitrate multimedia stream segments.
- the adaptive stream manager 336 may then begin requesting multimedia stream segments with a sufficiently low bitrate that playback is not interrupted. The lower bitrate storage segments, however, would likely have a lower quality.
- adaptive stream manager 336 may be set to prioritize battery life.
- the adaptive stream manager 336 may monitor battery life, network connection type, and battery drain. If the mobile terminal 120 moves from a wireless network using a slower, lower power technology to a faster, higher power technology, the adaptive stream manager 336 may predict that battery drain will increase, and thus battery life will decrease. Accordingly, the adaptive stream manager 336 may select a target characteristic of an energy efficient codec. An energy efficient codec may be simpler and thus require less processing power to decode, allowing the media processor 330 to be throttled down to save power. However, the energy efficient codec may not produce high quality video. The adaptive stream manager 336 may then request multimedia stream segments encoded with the energy efficient codec.
- the adaptive stream manager 336 may be set to prioritize quality and battery life.
- the adaptive stream manager 336 may monitor battery life, GPS/LBS data, video quality, and battery drain. If the mobile terminal 120 is stationary, the adaptive stream manager 336 may be able to toggle receive diversity functionality of the mobile terminal 120 to decrease power consumption without affecting signal strength. Thus, the adaptive stream manager 336 may predict that energy consumption will decrease and quality will remain the same. The adaptive stream manager 336 may then disable receive diversity functionality. Accordingly, the adaptive stream manager 336 may then request multimedia stream segments with high quality encoding.
- FIG. 6 illustrates a method 600 of predicting future parameter values, according to one embodiment.
- the adaptive stream manager 336 monitors parameters of a user terminal such as, for example, the mobile terminal 120.
- the parameters that the adaptive stream manager 336 monitors at 610 can be one of the parameters discussed above at 520, with respect to FIG. 5.
- the adaptive stream manager 336 stores the monitored parameters as historical parameter values.
- the historical parameter values can be stored in a memory such as, for example, a flash memory embedded in the mobile terminal 120.
- the historical parameter values can be uploaded via a network such as the network 150.
- the historical parameter values can be analyzed and searched for patterns and correlations between the progression of one historical parameter and subsequent changes in another historical parameter. For example, analysis may show that a rising signal-to-noise ratio (SNR) is correlated with a subsequent increase in available bandwidth. At the same time, a volatile SNR pattern ending with a rise may be correlated with a subsequent decrease in available bandwidth.
- SNR rising signal-to-noise ratio
- Historical parameter values that are uploaded to a remote server can be analyzed remotely, and a summary can be sent back to the adaptive stream manager 336.
- the adaptive stream manager 336 predicts a future parameter value based on the current parameter value, the historical parameter values, and the correlated patterns determined at 630.
- FIG. 7 illustrates an exemplary embodiment of an adaptive stream manager 336.
- the adaptive stream manager 336 includes a receiving module 720, a monitoring module 730, a prediction module 740, a storage module 750, a processing module 760, a memory module 770, and a transmitting module 780.
- the receiving module 720 serves to receive multimedia stream segments from a media server such as, for example, the media server 110 described above with respect to FIG. 1.
- the receiving module 720 can correspond to the modem processor 320, described above with respect to FIG. 3.
- the receiving module 720 can correspond to an aspect of the media processor 330.
- the receiving module 720 provides one means for receiving a multimedia stream, which can comprise a plurality of multimedia segments.
- the monitoring module 730 serves to monitor parameters of a user terminal such as, for example, the mobile terminal 120 described above with respect to FIG. 1.
- the monitoring module 730 can monitor aspects such as the sensor suite 340, the modem buffer 324, and the media buffers 334.
- the monitoring module 720 can correspond to an aspect of the media processor 330.
- the monitoring module 720 provides one means for monitoring at least one parameter of the user terminal.
- the monitored parameter is a network parameter or a quality parameter.
- the monitoring module 720 also provides a means for monitoring a network parameter or a network quality parameter.
- the prediction module 740 serves to predict a future value of at least one of the parameters monitored by the monitoring module 730.
- the prediction module 740 can correspond to an aspect of the media processor 330. In some embodiments, the prediction module 740 correlates historical parameter data when it predicts the future parameter value. Thus, the prediction module 740 provides one means for predicting a future value of at least one parameter of the user terminal based on the historical parameter values and the recent parameter data. At the same time, the prediction module 740 can provide one means for correlating recent parameter data with the historical parameter values. Furthermore, the prediction module 740 can be configured to store historical parameter data in the storage module 750. The storage module 750 can be any data storage medium. Thus, the storage module 750 provides one means for storing historical parameter values of at least one parameter of the user terminal.
- the processing module 760 serves to select a target characteristic based on the future value predicted by the prediction module 740.
- the prediction module 740 can correspond to an aspect of the media processor 330.
- the processing module 760 provides one means for selecting a target characteristic, based on at least one monitored parameter of the user terminal.
- the processing module 760 provides a means for selecting the target characteristic based on the predicted future value of the at least one parameter of the user terminal.
- the memory module 770 serves as working memory for the processing module 760.
- the transmitting module 780 serves to send requests for multimedia segments to the media server 110.
- the transmitting module 720 can correspond to the modem processor 320.
- the transmitting module 720 can correspond to an aspect of the media processor 330.
- the transmitting module 780 provides one means for requesting a multimedia segment having the target characteristic
- a software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
- An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium.
- the storage medium may be integral to the processor.
- the processor and the storage medium may reside in an ASIC.
- the ASIC may reside in a user terminal.
- the processor and the storage medium may reside as discrete components in a user terminal.
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- Computer Hardware Design (AREA)
- General Engineering & Computer Science (AREA)
- Mobile Radio Communication Systems (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
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Abstract
Description
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Priority Applications (6)
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KR1020147034746A KR101553501B1 (en) | 2009-10-16 | 2010-10-15 | Adaptively streaming multimedia |
EP10770684.8A EP2489167B1 (en) | 2009-10-16 | 2010-10-15 | Adaptively streaming multimedia |
CN2010800464896A CN102577312A (en) | 2009-10-16 | 2010-10-15 | Adaptively streaming multimedia |
BR112012008794-0A BR112012008794B1 (en) | 2009-10-16 | 2010-10-15 | Adaptive multimedia streaming |
EP18163466.8A EP3396923B1 (en) | 2009-10-16 | 2010-10-15 | Adaptively streaming multimedia |
JP2012534417A JP5619906B2 (en) | 2009-10-16 | 2010-10-15 | Adaptively streaming multimedia |
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US12/903,491 US9124642B2 (en) | 2009-10-16 | 2010-10-13 | Adaptively streaming multimedia |
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WO2011047335A1 true WO2011047335A1 (en) | 2011-04-21 |
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EP (2) | EP3396923B1 (en) |
JP (2) | JP5619906B2 (en) |
KR (2) | KR20120083463A (en) |
CN (2) | CN102577312A (en) |
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TW (1) | TW201141156A (en) |
WO (1) | WO2011047335A1 (en) |
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EP2489167A1 (en) | 2012-08-22 |
BR112012008794A2 (en) | 2020-09-15 |
BR112012008794B1 (en) | 2022-02-15 |
JP2013509040A (en) | 2013-03-07 |
JP2014147092A (en) | 2014-08-14 |
KR20120083463A (en) | 2012-07-25 |
KR101553501B1 (en) | 2015-09-15 |
CN107196908B (en) | 2022-01-11 |
CN107196908A (en) | 2017-09-22 |
EP3396923A1 (en) | 2018-10-31 |
US9124642B2 (en) | 2015-09-01 |
EP2489167B1 (en) | 2018-04-04 |
JP5619906B2 (en) | 2014-11-05 |
US20110093605A1 (en) | 2011-04-21 |
KR20150008478A (en) | 2015-01-22 |
EP3396923B1 (en) | 2022-11-16 |
TW201141156A (en) | 2011-11-16 |
CN102577312A (en) | 2012-07-11 |
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