| 摘要 |
According to embodiments of the present invention, the user-to-user delay and the zapping delay are reduced by a network element which is configured to provide at least one segment that is a shorter version of the actual segment and where the shorter version of the actual segment begins with a key frame or contains key frames only. By providing the at least one segment being a shorter version of the actual segment, wherein a key frame is inserted in the beginning of the segment, the delay, when zapping to a new channel, can be reduced, since a key frame will be accessible with a reduced time delay. Further the user-to-user delay is also reduced since the segment to be joined is shorter. Hence, the time difference occurring when a first user joins in the beginning of a segment and when another user joins at the end of the segment is reduced when the segments are shorter. In addition, the length of the segments can be adjusted to the requested joining point in order to further reduce the user-to-user delay to substantially zero. |
