A method for loading and transferring packet voice
A technology combining packetized voice and transmission format, applied in transmission systems, digital transmission systems, and multiple use of transmission paths. The effect of transmission efficiency
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Embodiment 1
[0045] Embodiment 1: The work flow can be briefly described as: after the VoIP data stream transmitted from the SGSN reaches the RNC, the RNC decomposes the message into four categories: Class A, Class B, Class C and Class Header, where the Class Header is IP / UDP / RTP / AMR header class, and perform header compression, RNC divides the voice data into Class A / B / C according to the configuration information carried by the RAB assignment (Assignment) message from the SGSN or other messages; then These four categories are transmitted to the UE using the UEP method. After receiving various types of data, the UE decompresses the Class Header, then combines the four types into one IP voice packet, and sends it to the upper layer protocol stack.
[0046] The processing process of the data plane in the RNC is shown in Figure 4. In this scheme, a decomposer (Decomposer) is added to the PDCP layer of the RNC to decompose the packet voice data stream configured to use UEP into Class A, Class...
Embodiment 2
[0068] Embodiment two: the difference between this embodiment and embodiment one is that RNC divides the VoIP data flow from SGSN into three classes: Class A, Class B, and Class C, wherein Class A is the header and The voice data with the highest importance, Class B / C is the voice data with lower importance, and the specific definition method is: Class B / C is consistent with the definition of the first embodiment and the prior art, and Class A is the Class in the first embodiment The sum of the lengths of A and Class Header is shown in Table 3:
[0069] data frame type
AMR
encoding type
total length
(bits)
Class A
(bits)
Class B
(bits)
Class C
(bits)
0
4,75
425
372
53
0
1
5,15
433
379
54
0
2
5,90
448
385
63
0
3
6,70
464
388
76
0 ...
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