Grouped dispatching method of wireless communication system

Abstract

The present invention provides a method of scheduling packet in a wireless telecommunication system, in which the user packet queues to be transmitted are divided into the user packet queues with packet loss and the user packet queues without packet loss; for the user packet queues with packet loss, if a real time loss ratio of packet for the user exceeds a predetermined loss ratio threshold of packet, terminate a connection to the user; if the real time loss ratio of packet for the user does not exceed the predetermined loss ratio threshold of packet, schedule the user packet queues according to a volume of the loss ratio of packet; for the user packet queues without packet loss, schedule according to packet lengths, channel quality states, time delays and time delay jitters. The present invention decreases the packet loss ratio by giving priority to scheduling users with high packet loss ratio under the condition of existing a certain extent of packet loss, takes the requirements of user packet service sensitive to the time delay jitter into full consideration, and controls the time delay jitter to maintain invariable, therefore improves the telecommunication quality of those users.

Description

technical field [0001] The invention relates to a wideband code division multiple access (WCDMA) communication system in the field of wireless communication, in particular to a grouping scheduling method of the WCDMA communication system. Background technique [0002] Wideband code division multiple access is a wireless transmission technology scheme proposed by the third generation mobile communication system standardization organization. The well-known time division multiple access (TDMA) and frequency division multiple access (FDMA) technologies are mainly used for voice and low-rate data transmission. Certain limitations, and Code Division Multiple Access (CDMA) modulation technology is a new communication technology adopted when there are a large number of system users. [0003] The third-generation mobile communication system can provide mobile users with multimedia services similar to those of fixed networks, support global roaming and have good service quality, and i...

AI Technical Summary

Problems solved by technology

A common solution is to set a long enough data buffer to make up for the shortcoming of delay jitter, such as US patent application 20030112796 "Voice and data exchange over a packet based network with fax relayspoofing" (based on the packet voice of the network of fax delay deception) and data exchange) and U.S. Patent Application 20030026275 "Dynamic Jitter buffering for voice-over-IP and other packet-based communication systems" (dynamic jitter buffering for voice over IP and other packet-based communication systems), but if the delay jitter is large, then The data buffer set to control the delay jitter must also be large, thus increasing the data transmission delay. If the data transmission delay exceeds a certain threshold, it will not meet the service quality requirements of wireless communication.

The existing technology does not consider the processing of delay jitter in the packet scheduling method when all QoS requirements are met, thus destroying the communication quality of some services

Images