Data transmission method, data receiving device and data sending device for video service
A data receiving device and video service technology, applied in the field of data transmission, can solve problems such as video data packet loss and video quality degradation, and achieve the effect of improving video service quality and avoiding a sharp drop in video quality
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Embodiment 1
[0080] The embodiment of the present invention provides a video service data transmission method, the method is executed by the receiver in the video service, the receiver can be UE or RNC, see figure 2 , the method includes:
[0081] Step 101: Receive video data packets.
[0082] Step 102: Judging if the received video data packets are put into the receiving buffer, whether the receiving buffer overflow will be caused, if the judgment result is that the received video data packets are put into the receiving buffer, the receiving buffer will not be caused to overflow , then execute step 103, if the judgment result is that the received video data packet is put into the receiving buffer, which will cause the receiving buffer to overflow, then execute step 104, the receiving buffer is used to store the received video data packet.
[0083] Step 103: Put the received video data packet into the tail of the receiving buffer queue.
[0084] Step 104: judge the type of the video dat...
Embodiment 2
[0089] The embodiment of the present invention provides a video service data transmission method, the method is executed by the receiving end in the video service, the receiving end can be UE or RNC, the embodiment of the present invention is a further description of the first embodiment, the further description Including but not limited to judging the type of video data packets, sending retransmission request messages, etc., see image 3 , the method includes:
[0090] Step 201: Receive video data packets.
[0091] As mentioned above, the receiving end performing step 201 may be UE or RNC, and when the receiving end is RNC, the video data packet received by the receiving end is SDU. When the receiving end is a UE, the video data packet received by the receiving end is a PDU.
[0092] Step 202: Judging if the received video data packets are put into the receiving buffer, whether the receiving buffer overflow will be caused, if the judgment result is that the received video d...
Embodiment 3
[0113] An embodiment of the present invention provides a method for transmitting video service data. The method is executed by a sender in the video service. The sender may be an RNC, and the receiver corresponding to the sender may be a UE. For the corresponding actions of the receiver, see Implementation For example one or two, see Figure 4 , the method includes:
[0114] Step 301: Send the video data packets in the sending buffer, and copy the video data packets in the sending buffer into the retransmission buffer.
[0115] Step 302: Obtain the retransmission request message sent by the receiving end, the retransmission request message includes the identifier of the video data packet to be retransmitted.
[0116] Steps 301 and 302 are not sequenced.
[0117] Step 303: According to the received retransmission request message, determine the type of the video data packet to be retransmitted, and the type of the video data packet to be retransmitted includes important and un...
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