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Connectivity-based positioning determination in wireless communication network

A wireless communication network and wireless communication technology, applied in the field of positioning determination

Pending Publication Date: 2022-06-24
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Challenges for these methods include effectively differentiating LoS links from NLoS links to identify LoS, and accurately determining the NLoS error for each link in LoS reduction

Method used

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  • Connectivity-based positioning determination in wireless communication network
  • Connectivity-based positioning determination in wireless communication network
  • Connectivity-based positioning determination in wireless communication network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] figure 1 is a block diagram of a wireless communication network and NLoS scenario for UE positioning determination. In the illustrated example, wireless communication network 100 includes BSs 102 , 104 , 106 and UE 108 , and the operating environment of UE 108 includes two obstacles 110 , 112 . LoS paths are shown at 120 , 122 and NLoS paths are shown at 124 . Another LoS path 126 between UE 108 and BS 104 is blocked by obstacle 112 , so a "weak" LoS path is shown at 128 . In this scenario, the rays propagating along the NLoS path 124 may be stronger than the rays propagating along the weak LoS path 128, so it is not possible for the UE 108 to distinguish these LoS rays from NLoS rays based solely on the received signal power.

[0032] Although geometry-based UE positioning determination methods may be simple and cost-effective, these methods only perform well in LoS scenarios and when certain assumptions of signal, noise, channel and array models are satisfied. Howe...

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Abstract

In one embodiment, at a first user equipment (UE) in a wireless communication network, signaling associated with a direct wireless communication link between the first UE and a second UE is received. Based on the received signaling, signaling indicating a range estimate between the first UE and the second UE is sent to a network device in the wireless communication network. According to another aspect of the invention, signaling indicative of a range estimate associated with such a direct wireless communication link is received, and signaling indicative of a prediction model and / or signaling indicative of a prediction from the prediction model is transmitted. The prediction model is used to predict a line of sight (LoS) state of a communication link in the wireless communication network, and is based in part on the range estimation.

Description

[0001] This application claims priority to US Patent Application No. 16 / 675,597, filed on November 6, 2019, entitled "CONNECTIVITY-BASED POSITIONING DETERMINATION IN WIRELESSCOMMUNICATION NETWORKS", This application is incorporated herein by reference. technical field [0002] The present application relates to wireless communication, and in particular, to positioning determination in a wireless communication network. Background technique [0003] The lack of line of sight (LoS) communication (also known as non-line of sight (NLoS) communication) can affect the accuracy of estimating a UE's location or location in a wireless communication network. This phenomenon occurs because NLoS produces a bias in estimating direct path parameters such as time of flight (ToF) (also known as range) and angle of arrival (AoA), both of which are This information source is crucial for geometry-based localization determination. Specifically, the NLoS range deviation of all base stations (BS...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W64/00G01S5/00
CPCH04L5/0091H04L5/0053H04L5/0048H04W4/023G01S5/0289H04W4/029H04W76/20
Inventor 纳维德·塔达永默罕默德哈迪·巴里
Owner HUAWEI TECH CO LTD