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Reference signal sending method and device

A technology of reference signal and transmission method, applied in the field of communication, can solve the problems affecting the high-power data transmission of terminal equipment, large PAPR, etc.

Active Publication Date: 2020-05-19
HUAWEI TECH CO LTD
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present application provides a reference signal transmission method and device to solve the problem that the PAPR corresponding to the reference signal generated based on the PN sequence is usually relatively large, which affects the high-power data transmission of the terminal device

Method used

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  • Reference signal sending method and device
  • Reference signal sending method and device

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Embodiment Construction

[0198] figure 1 It is a schematic diagram of the architecture of the communication system provided by the embodiment of the present application. Such as figure 1 As shown, the communication system may include: a network device 10 and at least one terminal device 20 . The communication system provided by the embodiment of the present application can be used in communication networks with a large number of access devices, such as the Internet of Things and vehicle networks.

[0199] Wherein, the terminal device may be a wireless terminal or a wired terminal, and the wireless terminal may be a device that provides users with voice and / or other service data connectivity, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem equipment. The wireless terminal can communicate with one or more core networks via the radio access network (Radio Access Network, RAN), and the wireless terminal can be a mobile terminal, such as a...

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Abstract

The embodiment of the invention provides a reference signal sending method and device, and the method comprises the steps that terminal equipment determines a root sequence index value of the terminalequipment according to coverage level information of the terminal equipment and a predefined ordered root sequence index value set, wherein the lower the coverage level of the terminal equipment is,the smaller the coverage association indication value corresponding to the root sequence index value of the terminal equipment is, and generating and sending a reference signal according to the root sequence index value of the terminal equipment. According to the embodiment of the invention, the root sequence index value with the relatively small coverage association indication value is selected for the terminal equipment with relatively poor coverage, so that terminal equipment with poor coverage can perform high-power data transmission when using the reference signal in the embodiment, and root sequence index values are sorted according to coverage association indication values so that the root sequence index value with a small coverage association indication value is conveniently selected from the plurality of root sequence index values.

Description

technical field [0001] The present application relates to the field of communications, and in particular to a reference signal sending method and device. Background technique [0002] With more and more application scenarios of the Internet of Things, the communication network as the basis of the Internet of Things faces the demand for large-scale random access, and the location of the access users is not fixed. Current IoT technologies such as ZigBee / LoWPAN or IEEE 802.11ah are only suitable for short-distance IoT coverage and cannot guarantee reliable network coordination and control. However, the current satellite communication has high cost and high energy consumption, and cannot reach indoors. Therefore, a high-performance cellular network with wide-area coverage is an important technology that limits the development of the Internet of Things. [0003] The uplink transmission of terminal equipment in the traditional cellular network is based on scheduling, which has t...

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Application Information

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IPC IPC(8): H04L27/26H04L5/00
CPCH04L5/0048H04L27/262H04L5/00H04L27/26
Inventor 龚政委吴亮张蕾王磊
Owner HUAWEI TECH CO LTD
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