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 14):
The base station according to  claim 13 , wherein each of the L groups of pre-coding matrixes corresponds respectively to a piece of moving speed information, and for the moving speed information corresponding to any one of the groups of pre-coding matrixes, a signal to noise ratio of the UE receiving the downlink data using the level of group of pre-coding matrixes while moving at a corresponding moving speed is greater than or equal to a preset threshold; and\n the processor is further configured to read the programs in the memory to execute determining the l-th level of group of pre-coding matrixes corresponding to current moving speed of the UE according to the current moving speed of the UE, and moving speed information corresponding respectively to each group of pre-coding matrixes in the L groups of pre-coding matrixes.

Metadata:
- Claim Count in Document: 11.0
- Percentile: 94.0
- Lexical Diversity: 2.19149
- Patent Class: 375.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['16084219', '14655731', '15114039', '13505930', '13522374']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5318211816467854
- 35 USC 102 Novelty (BERT): 0.5018374316763567
- Combined Prediction Score: 0.5288228066497425
- Mean Citation Score: 252.271878
- Max Citation Score: 258.89066
- Similarity Product: 188.8632043326938

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