Unlock instant, AI-driven research and patent intelligence for your innovation.

Uplink transmission method and device

A transmission method and a technology of a transmission unit, which are applied in the field of communication and can solve problems such as the inability of a base station to receive uplink data

Active Publication Date: 2018-10-09
HUAWEI TECH CO LTD
View PDF4 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, when the UE has not obtained the scheduling resources allocated by the base station for a long time, the amount of TA used by the UE may have exceeded. At this time, if the uplink transmission scheme in the LTE system is used, the UE needs to cancel this uplink transmission, so that the base station Unable to receive uplink data sent through scheduling-free resources

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Uplink transmission method and device
  • Uplink transmission method and device
  • Uplink transmission method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0057] Hereinafter, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the embodiments of the present invention, unless otherwise specified, "plurality" means two or more.

[0058] An embodiment of the present invention provides an uplink transmission method, which can be applied to figure 2 In the shown uplink transmission system, the system includes a wireless access device 11 and at least one user equipment 12 .

[0059] A user equipment (user equipment, UE) 11 may also be called a terminal, specifically, a mobile phone, a tablet computer, a notebook computer, a UMPC (Ultra-mobile Personal Computer, ultra-mobile personal computer), a netbook, a PDA (Personal Digital Assistant, ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

Embodiments of the present invention provide an uplink transmission method and device, relates to the technical field of communications, and can be used to increase the probability of a wireless access apparatus correctly receiving uplink data when UE performs uplink transmission on a non-scheduled resource. The method comprises that the UE determines that a non-scheduled resource to perform uplink transmission; when a first TA value stored in the UE is invalid, the UE updates the previously stored first TA value to a predetermined second TA value; abd the UE uses the second TA value to continue performing the current uplink transmission of the non-scheduled resource.

Description

technical field [0001] Embodiments of the present invention relate to the field of communication technologies, and in particular, to an uplink transmission method and device. Background technique [0002] In a long term evolution (long term evolution, LTE) system, each user equipment (user equipment, UE) in a cell first needs to obtain a wireless resource dynamically allocated to it by a base station (referred to as a scheduling resource in the embodiment of the present invention) before performing uplink transmission. . Furthermore, if figure 1 As shown, the UE can determine the start time T1 for sending the uplink subframe to the base station according to the currently used timing advance (timing advance, TA) amount. Since the effective duration of the TA amount in each uplink transmission process is certain, when the time T1 arrives, if the above TA amount is still valid, the UE can use the above scheduling resource to send the above uplink subframe to the base station ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/12
CPCH04W72/1268H04W72/21H04W56/001H04L5/0078H04L5/0091H04L5/0053H04L41/0813H04W72/0446H04W72/23
Inventor 黄曲芳刘星
Owner HUAWEI TECH CO LTD