Scheduling authorization withdrawing method and device

A technology for scheduling authorization and back-off windows, which is applied in the directions of error prevention/detection, network flow/resource management, digital transmission system, etc. by using the return channel, and can solve problems such as the occupancy of the downlink direction of the authorized sub-band and the waste of system resources, etc., to improve Utilization, Guaranteed Transmission Quality and Effects of Transmission Delay

Inactive Publication Date: 2017-09-19
POTEVIO INFORMATION TECH CO LTD
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Problems solved by technology

[0006] Aiming at the defects of the prior art, the embodiment of the present invention provides a scheduling grant backoff method and device, which can solve the problem in the prior art that the downlink direction of the authorized subband is always occupied due to the failure to send the downlink enable DCI, which wastes system resources. question

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  • Scheduling authorization withdrawing method and device
  • Scheduling authorization withdrawing method and device

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Embodiment Construction

[0048] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0049] figure 1 is a schematic flowchart of a scheduling grant backoff method provided by an embodiment of the present invention, as shown in figure 1 As shown, the method includes the following steps:

[0050]S1: When the downlink control information DCI of a certain downlink activation reaches the maximum number of hybrid automatic repeat request HARQ transmissions and the transmission fails, the terminal enters the backoff state.

[0051] Specifically, wh...

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Abstract

The embodiment of the invention provides a scheduling authorization withdrawing method and device; the method comprises the following steps: when certain downlink open downlink control information (DCI) reaches the maximum hybrid automatic repeat request (HARQ) transmission frequency and the transmission fails, a terminal enters the withdraw state; when the base station receives an uplink open DCI or a downlink open DCI successful feedback message sent by the terminal, the terminal quits the withdraw state. The method and device can effectively prevent a user from always occupying an authorization channel when the downlink open DCI transmission fails, thus improving the sub-band resource utilization rate.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of wireless communication, and in particular, to a scheduling grant backoff method and device. Background technique [0002] In a wireless communication system, a scheduling algorithm at a Media Access Control (Media Access Control, MAC for short) layer plays a crucial role. The scheduling module implements priority scheduling for end users through information interaction between the upper layer and the lower layer, and completes physical resource allocation and transmission control of Hybrid Automatic Repeat reQuest (HARQ). Its purpose is to allocate and schedule resources on a limited bandwidth while meeting the user's Quality of Service (Qos) requirements, so as to maximize spectrum efficiency and system capacity, and provide users with satisfactory services. [0003] The dynamic shared resource scheduling mode adopted in the Long Term Evolution (LTE) system greatly optimizes th...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/04H04W72/12H04W72/14H04L1/18
CPCH04L1/1864H04W72/23
Inventor 李琳杨茜
Owner POTEVIO INFORMATION TECH CO LTD
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