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PRACH preamble sequence sending and receiving method and device

A transmission method and preamble technology, applied in electrical components, wireless communication, etc., can solve problems such as large system impact

Inactive Publication Date: 2020-10-27
POTEVIO INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the entire cell is switched to the high-speed mode because of the access requirements of such a small number of newly added mobile UEs, it will have a great impact on the PRACH preamble transmission of the existing fixed UE equipment, and even require the original UEs in the system to upgrade To support the high-speed mode, it has a great impact on the system, so it is not suitable to use cell-level parameters to switch the entire cell to the high-speed mode

Method used

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  • PRACH preamble sequence sending and receiving method and device
  • PRACH preamble sequence sending and receiving method and device
  • PRACH preamble sequence sending and receiving method and device

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Embodiment Construction

[0033] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments. In the following description, specific details, such as specific configurations and components, are provided only to assist in a comprehensive understanding of the embodiments of the present invention. Accordingly, those of ordinary skill in the art should recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. Also, descriptions of well-known functions and constructions are omitted for clarity and conciseness.

[0034] It should be understood that reference throughout this specification to "an embodiment" or "an embodiment" means that a particular feature, structure, or characteristic related to the embodiment is included in at least one embodiment of th...

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Abstract

The embodiment of the invention provides a PRACH preamble sequence sending and receiving method and device. The method comprises the following steps: generating a physical random access channel (PRACH) preamble sequence; determining a frequency domain uplink target sub-band corresponding to the motion state type according to the motion state type supported by the terminal, wherein different motionstate types correspond to different frequency domain uplink sub-bands; and in the target sub-band, sending the PRACH preamble sequence to network side equipment. The invention provides a mode for configuring cell-level parameters of the PRACH preamble sequence which is compatible with both high-speed moving UE and non-high-speed UE.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a method and device for sending and receiving a PRACH preamble sequence. Background technique [0002] Time Division-Long Term Evolution (TD-LTE) 230 power wireless communication system is a custom-developed TD-LTE technology to meet the communication needs of smart grid services. Spectrum resources. In this communication system, a physical random access channel (Physical Random Access Channel, PRACH) is used for a terminal (User Equipment, UE) to establish an initial connection with a base station (eNB), and the UE first sends a random access preamble sequence to the eNB. [0003] When the eNB receives the PRACH sequence, it will receive the PRACH sequence from high-speed and non-high-speed UEs at the same time, and the false peak generated by the high-speed moving UE overlaps with the peak positions of other non-high-speed UEs, resulting in misjudgment by ...

Claims

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Application Information

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IPC IPC(8): H04W74/00H04W74/08H04W72/04
CPCH04W74/004H04W74/0866H04W72/0453H04W72/51
Inventor 朱莉森王姗龚秋莎陈艳霞冯绍鹏
Owner POTEVIO INFORMATION TECH