Decompressing method and device

A decompression and data packet technology, applied in the field of communication, can solve the problems of unable to update the reference value correctly, unable to reasonably judge the number of lost packets, and inappropriate to rely on the time factor.

Active Publication Date: 2018-09-25
DATANG MOBILE COMM EQUIP CO LTD
View PDF6 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the optimization of the resource scheduling algorithm at the physical layer, there may be 2 to 3 compressed voice packets received at the same time during packet accumulation scheduling; or when the system is busy, the packet time interval is not stable. The time factor is not appropriate, and it is impossible to reasonably judge whether the number of lost packets is 2 k The reference value cannot be updated correctly, so choosing the wrong decoding interval leads to CRC check errors, causing packet loss and updating the context, resulting in wrong transmission

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Decompressing method and device
  • Decompressing method and device
  • Decompressing method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0053] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0054] refer to figure 1 , which shows a flow chart of the steps of Embodiment 1 of a decompression method of the present invention, which may specifically include the following steps:

[0055] Step 101, receiving a compressed data packet; wherein, the compressed data packet includes the currently received compressed data packet and the last received compressed data packet;

[0056] In the embodiment of the present invention, the decompression end can receive the compressed data packet, and the decompression end can include a UE (User Equipment, terminal) or a base station. It should be noted that the decompression end can be a compression end at the same time, because the transmission of the compressed data packet is bidirection...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

Embodiments of the invention provide a decompressing method and a decompressing device. The method comprises the steps of: receiving a compressed data packet, wherein the compressed data packet includes a currently received compressed data packet and a last received compressed data packet; extracting a current sequence number corresponding to the PDCP protocol layer PDU of the currently received compressed data packet; extracting a specific sequence number corresponding to the PDCP protocol layer PDU of the last received compressed data packet; acquiring a time interval parameter of the currently received compressed data packet and the last received compressed data packet; determining whether the sequence number difference is greater than a preset sequence number threshold; if not, decompressing the compressed data packets according to the original decoding interval; if so, determining whether the time interval parameter is greater than the preset time threshold; and decompressing thecompressed data packets according to the second decoding interval when the time interval parameter is greater than the preset time threshold.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a decompression method and a decompression device. Background technique [0002] In the LTE (Long Term Evolution, long-term evolution) mobile communication network, VOLTE (Voice OverLte, voice service based on LTE) is an end-to-end voice solution under the condition of all IP (Internet Protocol, Internet Protocol), and voice data packets are periodic Arrival, the packet size is relatively fixed, the voice is compressed and encoded by Adaptive Multi-Rate (AMR, Adaptive Multi-Rate), and then encapsulated into IP data packets for transmission, for example: the broadband voice data packet with the highest rate of 23.85Kbps is 61 characters section, but the ARM packet header RTP (Real-time Transport Protocol, Real-time Transport Protocol) / UDP (User Datagram Protocol, User Datagram Protocol) / IPv (Internet Protocol Version, Internet Protocol Version) 6 reaches 60 bytes, so...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H04L29/06H04L1/00
CPCH04L1/0061H04L69/04H04L65/65
Inventor程岳
OwnerDATANG MOBILE COMM EQUIP CO LTD