PATENT CLAIM ANALYSIS

Application Number: 16067122
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2019-01
Patent Classification: ["375", "267000"]

Abstract:
Provided are a method and device for uplink information feedback and downlink data transmission, used, when the speed of motion of a terminal is high, for solving the problem of CSI information reported by the terminal being insufficient to track changes on the channel, such that data transmission carried out on the basis of the channel state information reported by the terminal causes seriously degraded performance. The method comprises: a base station obtaining a precoding matrix of a terminal, and an l-th precoding matrix set of L precoding matrix sets corresponding to said precoding matrix; each precoding matrix set of said L precoding matrix sets containing at least one precoding matrix; said at least one precoding matrix originating from a preset codebook, wherein l≤L and L is a positive integer; according to the precoding matrix contained in the obtained l-th precoding matrix set, the base station sending downlink data to the terminal. By means of the precoding matrix set, a relatively wide beam is formed to cover the user, thus guaranteeing downlink transmission for the terminal when it is moving at high speed, improving the reliability of downlink transmission.

Claim (Index 4):
The method according to  claim 3 , wherein any one of the pre-coding matrixes in the codebook corresponds to L groups of pre-coding matrixes, the l-th level of group of pre-coding matrixes among the L groups of pre-coding matrixes comprises N l  pre-coding matrixes, and the N l  pre-coding matrixes are first N l  pre-coding matrixes in the codebook comprising the pre-coding matrixes sorted in an ascending order of their distances from the any one pre-coding matrix, wherein N l <N l+1 .

Metadata:
- Claim Count in Document: 11.0
- Percentile: 94.0
- Lexical Diversity: 2.19149
- Patent Class: 375.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['16084219', '14655731', '15114039', '13505930', '13522374']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5014236523772472
- 35 USC 102 Novelty (BERT): 0.5029245269343575
- Combined Prediction Score: 0.5015737398329583
- Mean Citation Score: 252.271878
- Max Citation Score: 258.89066
- Similarity Product: 178.8825786252213

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

Dataset: test