PATENT CLAIM ANALYSIS

Application Number: 16022505
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2018-10
Patent Classification: ["455", "456100"]

Abstract:
Embodiments of the present disclosure provide a positioning method based on a time difference of arrival, user equipment, and a network device. The method includes: calculating, by user equipment, a first time difference of arrival RSTD 1  based on positioning signals sent by a first base station and a second base station at a same moment; calculating a second time difference of arrival RSTD 2  based on known location information of the user equipment; calculating a time alignment error TAE based on the RSTD 1  and the RSTD 2 ; and performing, based on the TAE, positioning based on a time difference of arrival TDOA. According to this method, the TAE caused by the base stations is subtracted during positioning calculation. In other words, the time alignment error caused by the base stations is eliminated. Therefore, accuracy of TDOA-based positioning can be ensured.

Claim (Index 16):
The network device according to  claim 11 , wherein the processor is further configured to: before calculating the RSTD2 based on the initial location information of the UE, receive the initial location information reported by the UE.

Metadata:
- Claim Count in Document: 20.0
- Percentile: 94.0
- Lexical Diversity: 2.42424
- Patent Class: 455.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['14339042', '14580224', '12774802', '15535714', '14268978']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.718212275092911
- 35 USC 102 Novelty (BERT): 0.5001047949936445
- Combined Prediction Score: 0.6964015270829843
- Mean Citation Score: 208.71400000000003
- Max Citation Score: 209.9704
- Similarity Product: 134.66712569179538

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test