ES2529840A2 - Señalización de intercambio de capacidades de orientación de dispositivos y adaptación de contenido multimedia del servidor en respuesta a la orientación de un dispositivo - Google Patents
Señalización de intercambio de capacidades de orientación de dispositivos y adaptación de contenido multimedia del servidor en respuesta a la orientación de un dispositivo Download PDFInfo
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- ES2529840A2 ES2529840A2 ES201331225A ES201331225A ES2529840A2 ES 2529840 A2 ES2529840 A2 ES 2529840A2 ES 201331225 A ES201331225 A ES 201331225A ES 201331225 A ES201331225 A ES 201331225A ES 2529840 A2 ES2529840 A2 ES 2529840A2
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- 230000000977 initiatory effect Effects 0.000 claims 1
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Abstract
Señalización de intercambio de capacidades de orientación de dispositivos y adaptación de contenido multimedia del servidor en respuesta a la orientación de un dispositivo. Las técnicas de señalización de intercambio de capacidades proporcionan información del sensor de orientación procedente de UE a servidores de red. La información del sensor de orientación describe un soporte del dispositivo para capacidades de sensor de orientación, o un estado de orientación actual del dispositivo. Basándose en tal información, un servidor multimedia proporciona diferentes versiones codificadas de contenido multimedia para diferentes modos de orientación del dispositivo soportados por el dispositivo. El servidor también puede adaptar, dinámicamente y en tiempo real, parámetros de captura o transcodificación de medios para crear contenido adaptado (es decir, optimizado) para el modo de orientación actual del dispositivo, o para sus diversos estados de orientación intermedios y posiciones espaciales.
Claims (29)
- REIVINDICACIONES1. Un equipo de usuario (UE) configurado para comunicarse de manera inalámbrica con un servidor de contenido de medios remoto e iniciar señalización de intercambio de capacidades, comprendiendo el UE: 5un sensor de orientación;un dispositivo de visualización;un transceptor de radiofrecuencia;un procesador conectado de manera operativa al transceptor de radiofrecuencia; y 10una memoria conectada de manera operativa al procesador, almacenando la memoria instrucciones que configuran el procesador para:transmitir, a través del transceptor de radiofrecuencia, información que proporciona capacidades de orientación del dispositivo del UE al servidor de contenido de medios remoto o un servidor de perfiles de dispositivos, incluyendo las capacidades de 15 orientación del dispositivo del UE una o más posiciones de orientación que corresponden a información de orientación proporcionada por el sensor de orientación.
- 2. El UE de la reivindicación 1, en el que las instrucciones además configuran el procesador para: 20recibir desde el servidor de contenido de medios remoto un archivo declarativo que describe múltiples versiones del contenido de vídeo configurado para reproducción en el dispositivo de visualización según los estados de orientación indicados en las capacidades de orientación del dispositivo del UE.25
- 3. El UE de la reivindicación 2, en el que las múltiples versiones del contenido de vídeo son codificadas basándose en las capacidades de orientación del dispositivo para reproducción en visualizadores de dispositivo móvil, y en el que las instrucciones además configuran el procesador para:seleccionar, para transmisión continua o distribución de descarga, basándose en 30 un estado de orientación actual del UE, una versión del contenido de vídeo descrita en el archivo declarativo.
- 4. El UE de la reivindicación 3, en el que el archivo declarativo comprende unarchivo de descripción de presentación de medios (MPD), y en el que las instrucciones además configuran el procesador para:proporcionar la información que indica las capacidades de orientación del dispositivo del UE al servidor de contenido de medios remoto con un mensaje POST del protocolo de transferencia de hipertexto (HTTP); 5solicitar del servidor de contenido de medios remoto el archivo MPD mediante un mensaje HTTP GET;recibir desde el servidor de contenido de medios remoto el archivo MPD; ysolicitar la versión seleccionada del contenido de vídeo del servidor de contenido de medios remoto usando transmisión continua adaptativa dinámica sobre HTTP (DASH). 10
- 5. El UE de la reivindicación 1, en el que las instrucciones además configuran el procesador para:determinar un estado de orientación actual del UE basándose en la información de orientación proporcionada por el sensor de orientación; 15transmitir al servidor de contenido de medios remoto un mensaje que indica el estado de orientación actual y que incluye una solicitud de contenido de vídeo para visualización con el dispositivo de visualización basándose en las capacidades de orientación del dispositivo del UE;recibir desde el servidor de contenido de medios remoto un archivo de protocolo 20 de descripción de sesión (SDP) para distribución del contenido de vídeo, siendo seleccionada la distribución de un grupo que comprende:transmitir de manera continua el contenido de vídeo según un protocolo de transmisión continua en tiempo real (RTSP),comunicar el contenido de vídeo usando transmisión continua adaptativa 25 dinámica sobre HTTP (DASH), ydescargar el contenido de vídeo sobre HTTP o el protocolo de Distribución de Archivos sobre Transporte Unidireccional (FLUTE); yrecibir desde el servidor de contenido de medios remoto el contenido de vídeo que está identificado en el archivo SDP y es seleccionado por el servidor de contenido de 30 medios remoto basándose en el estado de orientación actual del UE.
- 6. El UE de la reivindicación 5, en el que las instrucciones configuran además el procesador para:transmitir en un mensaje SUBSCRIBE del protocolo de inicio de sesión (SIP) a un subsistema de Red Básica Multimedia del Protocolo de Internet durante el descubrimiento de servicios la información que proporciona capacidades de orientación del dispositivo del UE.5
- 7. El UE de la reivindicación 1, en el que la información que proporciona capacidades de orientación del dispositivo del UE incluye una lista de posiciones de orientación del dispositivo que proporciona una o más indicaciones seleccionadas de un grupo de comprende modos de orientación del dispositivo de visualización, modos de orientación del dispositivo de captura de vídeo, ángulos de orientación del dispositivo de 10 visualización de vídeo, ángulos de orientación del dispositivo de captura de vídeo, un indicador de valor booleano que tiene valores que indican si el UE es sensible a cambios de orientación, orientación por defecto del dispositivo para representación y visualización, orientación por defecto del dispositivo para captura, número de niveles de granularidad angular igualmente espaciados en un intervalo de 90 grados en el que el sensor de 15 orientación está configurado para detectar cambios de orientación tanto durante la captura como la visualización de vídeo, número de cámaras asociadas al UE, y soporte para reflexión horizontal.
- 8. Un procedimiento de control de distribución de transmisión continua o descarga 20 de contenido multimedia desde un servidor hasta un equipo de usuario (UE) cliente sobre una red inalámbrica, comprendiendo el procedimiento:proporcionar al servidor, mediante señalización de intercambio de capacidades, información indicativa de la capacidad de orientación del dispositivo del cliente para interpretar información de orientación de vídeo procedente del servidor según los modos de 25 orientación del dispositivo soportados en el cliente;recibir por el cliente, desde el servidor, en respuesta a la información, un archivo de metadatos que identifica una versión del contenido multimedia que está disponible para transmisión continua o descarga al cliente y configurado para un modo de orientación de una visualización del cliente; 30determinar un modo de orientación del visualizador del cliente; ytransmitir de manera continua o descargar a través de la red inalámbrica, la versión del contenido multimedia que está identificado en el archivo de metadatos y es seleccionado basándose en la orientación física del cliente, en el que la red inalámbricaemplea al menos un servicio de transmisión continua por conmutación de paquetes (PSS), PSS basado en subsistemas multimedia integrados (IMS), y el servicio de difusión y multidifusión multimedia MBMS (IMS_PSS_MBMS).
- 9. El procedimiento de la reivindicación 8, en el que el cliente comprende un 5 dispositivo móvil y la información incluye información de identidad del dispositivo móvil que identifica el dispositivo móvil por modelo, en el que el servidor comprende un servidor PSS, y en el que la etapa de proporcionar comprende:iniciar un intercambio de perfiles de capacidades del dispositivo entre el servidor PSS y un servidor de perfiles de dispositivos que almacena perfiles de capacidades de 10 dispositivo de múltiples modelos de dispositivos móviles, incluyendo un perfil de capacidades de dispositivo una lista de modos de orientación del dispositivo soportados por el cliente.
- 10. El procedimiento de la reivindicación 8, que además comprende: 15cambiar dinámicamente entre flujos del contenido multimedia basándose en cambios en la orientación física del cliente.
- 11. El procedimiento de la reivindicación 8, en el que el archivo de metadatos comprende un archivo de protocolo de descripción de sesión (SDP) para distribución del 20 contenido multimedia , en el que el procedimiento comprende además:transmitir de manera continua el contenido multimedia según un protocolo de transmisión continua en tiempo real (RTSP),transmitir de manera continua el contenido multimedia usando transmisión continua adaptativa dinámica sobre HTTP (DASH), o 25descargar el contenido multimedia sobre HTTP o el protocolo de Distribución de Archivos sobre Transporte Unidireccional (FLUTE).
- 12. El procedimiento de la reivindicación 8, en el que el archivo de metadatos comprende un archivo de descripción de presentación de medios (MPD) para transmitir de 30 manera continua el contenido multimedia según la transmisión continua adaptativa dinámica sobre HTTP (DASH).
- 13. Procedimiento llevado a cabo por un servidor de contenido de medios, cuyoprocedimiento comprende:recibir, a través de una red de comunicación, un atributo de orientación del dispositivo que incluye una lista de posiciones de orientación del dispositivo soportadas por un terminal cliente de una red de comunicación inalámbrica, las posiciones de orientación del dispositivo relevantes para transmisión continua o descarga de contenido de vídeo sobre 5 un protocolo de transporte soportado por una aplicación de servicio de transmisión continua por conmutación de paquetes en el terminal cliente;adaptar el contenido de vídeo basándose en el atributo de orientación del dispositivo a través de uno o más procesos que incluyen operaciones de selección, captura, compresión y transcodificación de contenido; 10generar un archivo de descripción de sesión o de metadatos para establecer una sesión de transmisión continua o descarga basándose en el atributo de orientación del dispositivo; ydistribuir el contenido de vídeo adaptado y el archivo de descripción de sesión o de metadatos generado al terminal cliente. 15
- 14. Uno o más medios legibles por ordenador, que implementan el procedimiento de la reivindicación 13.
- 15. Procedimiento, según la reivindicación 13, en el que la lista comprende una lista 20 de una o más posiciones de orientación que corresponden respectivamente a uno o más modos de orientación del dispositivo soportados por el terminal cliente.
- 16. Procedimiento, según la reivindicación 13, en el que el protocolo de transporte se selecciona de un grupo que comprende: 25un protocolo de transporte en tiempo real (RTP); yun protocolo de transporte de hipertexto (HTTP).
- 17. Procedimiento, según la reivindicación 13, en el que el archivo de descripción de sesión o de metadatos es un archivo de protocolo de descripción de sesión (SDP) para 30 distribución del contenido de vídeo, comprendiendo el procedimiento además:transmitir de manera continua el contenido de vídeo según un protocolo de transmisión continua en tiempo real (RTSP),transmitir de manera continua el contenido de vídeo usando transmisión continuaadaptativa dinámica sobre HTTP (DASH), odescargar el contenido de vídeo sobre HTTP o el protocolo de Distribución de Archivos sobre Transporte Unidireccional (FLUTE), o un archivo de descripción de presentación de medios (MPD) para DASH.5
- 18. Procedimiento, según la reivindicación 13, que comprende además:transcodificar el contenido de vídeo o convertir un formato del contenido de vídeo basándose en el atributo de orientación del dispositivo.
- 19. Procedimiento, según la reivindicación 13, en el que el atributo de orientación del 10 dispositivo es recibido desde un servidor de perfiles de dispositivos a través de la red de comunicación, y en el que el terminal cliente comprende un equipo de usuario (UE).
- 20. Un equipo de usuario (UE) configurado para coordinación de orientación de vídeo en una red del proyecto de asociación para la tercera generación (3GPP), 15 comprendiendo el UE:una interfaz de red para comunicarse con un servidor del servicio de transmisión continua por conmutación de paquetes (PSS) a través de una red de acceso radio (RAN) de la red 3GPP; yun cliente PSS para: 20señalizar, a través de la interfaz de red, una capacidad del cliente PSS para interpretar información de orientación de vídeo;recibir, a través de la interfaz de red desde el servidor PSS, un archivo de protocolo de descripción de sesión (SDP), incluyendo el archivo SDP información de orientación actual del vídeo que indica una orientación actual del vídeo recibido desde el 25 servidor PSS; ygirar el vídeo recibido desde el servidor PSS basándose en la orientación actual indicada en la información de orientación actual del vídeo.
- 21. El UE de la reivindicación 20, en el que el cliente PSS además está configurado 30 para ejecutar un intercambio de capacidades con el servidor PSS, incluyendo el intercambio de capacidades al menos una de la capacidad del cliente PSS para interpretar la información de orientación del vídeo y una capacidad del cliente para visualizar el vídeo basándose en la información de orientación del vídeo.
- 22. El UE de la reivindicación 21, en el que el intercambio de capacidades además incluye una indicación de una granularidad de ángulos de rotación proporcionada por el UE, y en el que la indicación de la granularidad se selecciona de un grupo que comprende:una granularidad más baja que corresponde a modos de rotación de 90 grados, 5 yuna granularidad más alta que corresponde a una pluralidad de niveles de granularidad angular igualmente espaciados dentro de un intervalo de 90 grados.
- 23. El UE de la reivindicación 20, en el que el cliente PSS además está configurado 10 para:girar el vídeo recibido desde el servidor PSS; ydespués de girar el vídeo, voltear horizontalmente el vídeo basándose en la orientación actual indicada en la información de orientación actual del vídeo.15
- 24. El UE de la reivindicación 20, que además comprende:una o antenas para comunicaciones inalámbricas con al menos uno de un dispositivo de comunicación inalámbrica y una red inalámbrica; yal menos uno de un altavoz, un micrófono, un puerto de conexión, un teclado, una pantalla táctil, una batería, y un puerto de memoria. 20
- 25. Procedimiento llevado a cabo por un servidor de contenido de medios, comprendiendo el procedimiento:realizar intercambio de capacidades del servicio de transmisión continua por conmutación de paquetes (PSS) con un equipo de usuario (UE) a través de una red del 25 proyecto de asociación para la tercera generación (3GPP), especificando el intercambio de capacidades PSS atributos de capacidad del dispositivo para coordinación de orientación de vídeo;seleccionar, basándose en el intercambio de capacidades PSS, contenido que comprende una primera orientación de una imagen; y 30señalizar la primera orientación de la imagen al UE.
- 26. Uno o más medios legibles por ordenador, que implementan el procedimiento de la reivindicación 25.
- 27. Procedimiento, según la reivindicación 25, que comprende además:recibir una indicación de un cambio en una orientación actual del UE;en respuesta a recibir la indicación del cambio en la orientación actual del UE, seleccionar el contenido en el servidor comprendiendo una segunda orientación de la 5 imagen; yseñalizar al UE la segunda orientación de la imagen.
- 28. Procedimiento, según la reivindicación 25, que comprende además:señalizar la primera orientación de la imagen al UE en un archivo de protocolo de 10 descripción de sesión (SDP) y un protocolo de transporte en tiempo real (RTP).
- 29. Procedimiento, según la reivindicación 25, que comprende además:recibir, desde el intercambio de capacidades PSS a través de la red 3GPP, un atributo de orientación del dispositivo que incluye una lista de una o más posiciones de 15 orientación del dispositivo, soportadas por el UE, relevante para el vídeo que puede ser incluido en un archivo de formato de archivo 3GPP y tratado por una aplicación del servicio de transmisión continua por conmutación de paquetes en el UE; ydistribuir contenido al UE basándose en el atributo de orientación del dispositivo,en el que la lista de una o más posiciones de orientación del dispositivo incluye 20 una indicación de un modo de orientación por defecto y un modo de orientación actual indicado por un sensor de orientación del UE.
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