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 15):
The base station according to  claim 13 , wherein the processor is further configured to read the programs in the memory to execute:\n receiving an index of the pre-coding matrix reported by the UE through the receiver; determining current moving speed of the UE; and upon determining that the current moving speed of the UE is greater than a preset threshold, determining a corresponding pre-coding matrix according to the index of the pre-coding matrix reported by the UE, determining the L groups of pre-coding matrixes corresponding to the pre-coding matrix, and determining the l-th level of group of pre-coding matrixes corresponding to the current moving speed of the UE according to the current moving speed of the UE, and a piece of moving speed information corresponding to each group of pre-coding matrixes in the L groups of pre-coding matrixes; or, the processor is further configured to read the programs in the memory to execute: receiving through the receiver an index of the pre-coding matrix, and a level index l of the l-th level of group of pre-coding matrixes among the L groups of pre-coding matrixes corresponding to the pre-coding matrix, both of which are reported by the UE; and obtaining the l-th level of group of pre-coding matrixes among the L groups of pre-coding matrixes corresponding to the pre-coding matrix according to the index and the level index l, both of which are reported by the UE.

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): 0.5324066674661431
- 35 USC 102 Novelty (BERT): 0.499072577487523
- Combined Prediction Score: 0.529073258468281
- Mean Citation Score: 252.271878
- Max Citation Score: 258.89066
- Similarity Product: 197.01510749013545

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