DRX (discontinuous reception) period based optimization method for uplink dynamic scheduling of VoLTE (voice over long term evolution) business

Abstract

The invention discloses a DRX (discontinuous reception) period based optimization method for uplink dynamic scheduling of VoLTE (voice over long term evolution) business. According to the method, when a drx base station is started and voice service is subjected to dynamic scheduling, PDCP (packet data convergence protocol) is adopted for judging an attribute of a voice packet, then MAC (media access control) is informed of the attribute of the voice packet and determines the size of the voice packet required to be added according to the attribute, and when a BSR (buffer status report) which is reported by UE and contains an LCG1 (logical channel group 1) is received, MAC judges the size of the voice packet according to the attribute, informed by PDCP, of the voice packet, and size of ceiling voice packets is extra added during scheduling. With the adoption of the method, the problems that end-to-end delay of the voice business is increased and the user's perception is affected because of existence of the voice packet waiting for scheduling after one-time uplink scheduling due to the fact that influence of the DRX period is not taken into consideration in the scheme scheduling mode in the prior art are solved.

Description

technical field [0001] The present invention relates to the field of communication technologies, in particular to a DRX cycle-based uplink dynamic scheduling optimization method for VoLTE services. Background technique [0002] TD-LTE is the English abbreviation of Time Division Long Term Evolution (Time Division Long Term Evolution), which is a communication technology and standard based on 3GPP LTE (Third Generation Partnership Project Long Term Evolution technology). 3GPP LTE is the standard for the upcoming 4th generation radio access network. A major challenge that designers continue to face is reducing the system power consumption of mobile terminals, also known in LTE terminology as user equipment (UE). In recent communication schemes like UMTS and the upcoming LTE system, UEs employ Discontinuous Reception (DRX) mode. [0003] DRX means that the UE stops monitoring the Physical Downlink Control Channel (PDCCH) for well-defined subframes (eg 2ms out of every 20ms) a...

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Problems solved by technology

[0007] According to the 36.321 protocol, when the terminal has uplink data to send, it needs to send SR (scheduling request, scheduling request) to the base station for resource application for new data transmission. Certain uplink resources are used for BSR, and only the transport block resources reported by the BSR are allocated without considering the impact of the DRX cycle. Due to the impact of the DRX cycle, the voice packets generated by the UE need to wait for another DRX cycle before they can be scheduled, which will cause voice The end-to-end delay of the packet increases, affecting user perception

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