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Physical signal transmission method and device and physical signal resource allocation method and device

A technology of physical signal and transmission method, which is applied in the direction of transmission path sub-channel allocation, pilot signal allocation, transmission system, etc., which can solve problems such as incorrect reception of uplink signals and uplink signal interference, so as to improve throughput and avoid signal interference , the effect of saving time domain resources

Pending Publication Date: 2021-05-28
BEIJING SAMSUNG TELECOM R&D CENT +1
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Full-duplex devices can simultaneously send and receive data on the same time-frequency resource, so full-duplex devices have a unique interference—self-interference, that is, the downlink signal sent by the device will be received by the device's own receiving antenna , causing strong interference to uplink signals received at the same frequency at the same time
Since the self-interference signal is directly received without spatial attenuation, the power of self-interference will be much higher than that of the uplink signal to be received. If it is not deleted, the uplink signal will not be received correctly

Method used

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  • Physical signal transmission method and device and physical signal resource allocation method and device
  • Physical signal transmission method and device and physical signal resource allocation method and device
  • Physical signal transmission method and device and physical signal resource allocation method and device

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Embodiment Construction

[0066] Reference will now be made in detail to the exemplary embodiments of the present disclosure, examples of which are illustrated in the accompanying drawings, wherein like numerals refer to like parts throughout. The embodiments are described below in order to explain the present disclosure by referring to the figures.

[0067] figure 1 A schematic diagram showing an air interface link in an IAB scenario. Among the full-duplex IAB nodes, there are 4 air interface links, such as figure 1 As shown, they are the downlink (denoted as DL2) from the transmitting end of the IAB-DU to the terminal or the receiving end of the child node IAB-MT, and the uplink from the transmitting end of the child node IAB-MT to the receiving end of the IAB-DU ( Denoted as UL2), the downlink from the IAB-donor or the parent node IAB-DU transmitter to the IAB-MT receiver (denoted as DL1), and the uplink from the IAB-MT to the IAB-donor or the parent node IAB-DU receiver link (denoted as UL1). T...

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Abstract

The invention provides a physical signal transmission method and device and a physical signal resource allocation method and device. The physical signal transmission method for the IAB node comprises the following steps: acquiring a configuration parameter for sending a physical signal; when a terminal function entity uplink sending link, a terminal function entity downlink receiving link, a base station function entity downlink sending link and a base station function entity uplink receiving link of an IAB node carry out simultaneous and same-frequency full duplex transmission, sending an uplink physical signal sent by a terminal function entity of the IAB node and a downlink physical signal sent by a base station function entity of the IAB node on the same time domain resource according to the acquired configuration parameters.

Description

technical field [0001] The present disclosure relates to the technical field of wireless communication. More specifically, the present disclosure relates to a physical signal transmission method and device, and a physical signal resource allocation method and device. Background technique [0002] In a traditional cellular network, a base station communicates directly with terminals within its coverage area. Since 5G NR (New Radio) supports the millimeter-wave frequency band with higher frequency, and in consideration of business flexibility, 5G NR supports a variety of subcarrier spacings greater than 15kHz. These two points lead to a relatively small coverage of a single 5G base station. When the base station communicates with a UE that is far away, it often needs to use other equipment for relay. Therefore, 5G NR supports IAB (Integrated Access and Backhaul) technology. There are two types of nodes in the IAB network, one is IAB-donor and the other is IAB-node. The rol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04L5/14H04L5/00
CPCH04L5/0048H04L5/14H04L5/1469H04W72/0446
Inventor 林鹏苏笛张闯钱辰喻斌
Owner BEIJING SAMSUNG TELECOM R&D CENT
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