Method and apparatus for error control in 3d video transmissoin
AssigneeThomson Licensing
InventorsYan XU, Lin DU, Jianping SONG
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Abstract
Methods and apparatuses for error control in 3D video transmission over wireless network are described. Cooperative Automatic Repeat re Quest(ARQ) is disclosed, which is based on the selective repeat ARQ with consideration of two factors: one is the interdependent relationship between the multiple components of the 3D video, e.g. the 2D video and its depth information in the 2D-plus-Depth format; and the other is time constraints of video frames/packets for continuous video playback. The disclosed cooperative ARQ allows the sender to control ARQ strength adaptively on a per-frame/per-packet basis. It guarantees continuous play back of the 3D video and efficient use of network connections.
Claims18
A method for controlling errors during data transmission, wherein said data comprise two interrelated components, said method comprising:
- transmitting a first packet of a first component and a second packet of a second component of said data separately;
- determining a re-transmission probability for said second packet based on a transmission status of said first packet;
- and
- re-transmitting said second packet with said re-transmission probability for said second packet.
An apparatus for controlling errors during data transmission, wherein said data comprise two interrelated components, said method comprising:
- a normal transmission unit for transmitting a first packet of a first component and a second packet of a second component of said data separately;
- a re-transmission determination unit for generating a re-transmission request for said second packet based on a transmission status of said first packet;
- and
- a re-transmission unit for re-transmitting said second packet upon receiving said re-transmission request.
Dependencies are inferred from the claim text.