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A scheduling method for 5G low-latency evolution

A scheduling method and low-latency technology, applied in the field of scheduling that evolves to 5G low-latency, can solve problems such as limiting the processing time of the MAC layer and system bottlenecks, and achieve the elimination of timing constraints, flexible deployment, and low-latency services the effect of the demand

Inactive Publication Date: 2020-10-09
POTEVIO INFORMATION TECH CO LTD
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Problems solved by technology

That is, the MAC layer of the corresponding subframe must be processed only after receiving the feedback result of the baseband, and the retransmitted data and the newly transmitted data are transmitted independently. This serial processing method limits the processing time of the MAC layer, making the system slow down Bottlenecks when extending

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  • A scheduling method for 5G low-latency evolution
  • A scheduling method for 5G low-latency evolution
  • A scheduling method for 5G low-latency evolution

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Embodiment Construction

[0042] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0043] In general, this application tries to eliminate the timing constraints between baseband processing and protocol processing. The real-time part only retains the design idea of ​​the HARQ retransmission function that has a strong real-time relationship with the air interface, and separates new transmission services from retransmission services and processes them in parallel. , to reduce the MAC layer processing time. For future 5G services with low-latency requirements, an emergency service channel is opened in real-time processing tasks, and the preemptive processing process of sending emergency services is prioritized by preempting the resources of low-priority user...

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Abstract

The present invention provides a scheduling method for 5G low-latency evolution, including: receiving newly transmitted data in the current subframe and generating a pre-scheduled user queue, synchronously receiving retransmission service and / or emergency service data; adjusting the pre-scheduled user queue in the scheduling queue Scheduling users, inserting emergency service users and retransmission service users into the pre-scheduling user queue; sending user multiplexing group packets and sending them to the baseband; returning users who failed to retransmit / new data were not successfully sent to the user queue, emergency services not sent Successfully sent users generate preemptive queue returns. The scheduling method proposed in this application can process retransmission and new transmission services in parallel, greatly reducing the processing time of the MAC layer, enabling the system to smoothly evolve to low-latency, and better meet the low-latency requirements of 5G in the future.

Description

technical field [0001] The present invention relates to the field of communication technologies, and more specifically, to a scheduling method for 5G low-latency evolution. Background technique [0002] The third generation partnership project long-term evolution LTE system and its enhanced LTE-advanced can work based on two systems, one is the frequency division duplex system, the downlink transmission and the uplink transmission are carried on the paired spectrum, and the two frequency division duplex , to avoid mutual frequency band interference; the other is the time-division duplex system, the downlink transmission and uplink transmission are carried on the same frequency point, and the downlink transmission and uplink transmission are time-division duplexed at the same frequency to avoid mutual time slot interference. [0003] With the enrichment of business types, some delay-sensitive services have emerged, which are called low-latency services, requiring end-to-end d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/865H04W72/12H04L47/6275
CPCH04L47/6275H04W72/569
Inventor 董敏安思麒
Owner POTEVIO INFORMATION TECH CO LTD
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