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

An optimization method and dynamic scheduling technology, applied in the field of communication, can solve the problems of increasing end-to-end delay of voice packets and affecting user perception, so as to reduce end-to-end delay, improve user perception, and improve uplink wireless resources. The effect of utilization

Inactive Publication Date: 2017-01-25
JILIN UNIV
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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

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

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Embodiment

[0027] see Figure 1-Figure 2 , a VoLTE service uplink dynamic scheduling optimization method based on DRX cycles, the method specifically includes the following steps:

[0028] (1) First, the base station of drx is turned on and when the voice service uses dynamic scheduling, the PDCP judges the voice packet attribute to obtain the attribute information of the voice packet, and the DRX cycle is 20ms;

[0029] (2) PDCP notifies the MAC layer of the attribute information of the voice packet. When receiving the BSR containing LCG1 reported by the UE, the MAC layer determines the size of the voice packet to be increased according to the attribute information of the voice packet. Scheduling does not increase the transport block size;

[0030] (3) When the terminal has uplink data to send, it needs to send SR resource application for new data transmission to the base station, and the base station periodically performs SR scheduling detection. If SR scheduling is detected and UE up...

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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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Application Information

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IPC IPC(8): H04W72/12H04W76/04
CPCH04W72/535H04W72/21
Inventor 钱志鸿吕思潼翟双王鑫孙大洋董颖
Owner JILIN UNIV
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