Uplink scheduling method and device

A scheduling method and a technology for scheduling requests, which are applied in the direction of error prevention/detection, digital transmission system, and error prevention by using the return channel, and can solve problems affecting business continuity and achieve the effect of avoiding random access and ensuring continuity

Active Publication Date: 2020-10-09
CHENGDU TD TECH LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Embodiments of the present invention provide an uplink scheduling method and device to overcome the problem that when the terminal SR reaches the maximum number of transmissions and fails to receive authorization from the base station, random access is re-initiated and service continuity is affected

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  • Uplink scheduling method and device
  • Uplink scheduling method and device

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Embodiment Construction

[0071] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0072] eMTC: Full name Enhanced Machine Type Communications, enhanced machine type communication, applied in the Internet of Things, has the characteristics of wide coverage, low cost, low power consumption, and supports massive connections. Realized by technologies such as high-frequency frequency, it is suitable for areas that require deep cover...

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Abstract

The embodiment of the invention provides an uplink scheduling method and device. The method comprises the following steps: when determining that new data needs to be subjected to uplink transmission,configuring uplink scheduling parameters according to protocol provisions, wherein the uplink scheduling parameters comprise an uplink scheduling request (SR) period and the maximum sending frequencyof the SR; and carrying out uplink scheduling according to the uplink scheduling parameter. The product of the SR period and the SR maximum sending frequency is greater than a first threshold, and thefirst threshold is the sum of the product of the physical uplink shared channel PUSCH maximum repetition frequency and the hybrid automatic repeat request HARQ maximum retransmission frequency and afirst preset offset value. According to the uplink scheduling method provided by the invention, after HARQ transmission is completed, the terminal sends the uplink scheduling request SR to the base station, so that random access is avoided, and the continuity of services is ensured.

Description

technical field [0001] The embodiments of the present invention relate to the field of communication technologies, and in particular, to an uplink scheduling method and device. Background technique [0002] The Internet of Things (IoT) is an important part of the future development of information technology. Its main technical feature is to connect objects to the network through communication technology, so as to realize the intelligent network of man-machine interconnection and object interconnection. The third generation partnership project (3rd Generation Partnership Project, 3GPP) standard aims at the characteristics of this kind of Internet of things business, based on the evolution of LTE, and designed the enhanced machine type communication (EnhancedMachine Type Communications, eMTC) technology specially for the Internet of things . [0003] In eMTC, when the terminal is in an edge weak coverage area, in order to enhance coverage, it usually needs to repeatedly send ...

Claims

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Application Information

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IPC IPC(8): H04W72/12H04L1/18
CPCH04L1/1812H04W72/21Y02D30/70
Inventor 鲜柯王亮冯翔姚敏陈迎魏立梅
Owner CHENGDU TD TECH LTD
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