PATENT CLAIM ANALYSIS

Application Number: 16084219
Application Type: Utility
Filing Date: 2018-09
Publication Date: 2019-03
Patent Classification: ["375", "267000"]

Abstract:
Disclosed are CSI feedback method, a precoding method, and an apparatus. In the present invention, after a terminal determines first precoding matrices on a first subband, the terminal obtains second precoding matrices corresponding to physical resources in the first subband according to the first precoding matrices and a column vector arrangement mode corresponding to the first precoding matrices; and then, the terminal determines CSI on a second subband according to the second precoding matrices. In the embodiment, precoding matrices are expanded according to a column vector arrangement mode, so as to obtain second precoding matrices corresponding to different physical resources; accordingly based on the second precoding matrices, CSI is measured by using the corresponding second precoding matrices on different physical resources. In the embodiment, precoding matrices are expanded according to a column vector arrangement mode, so that precoding can be performed on each data flow in transmission by using different column vectors, thereby improving the robustness of a transmission solution, and obtaining a stabler precoding gain.

Claim (Index 4):
The method according to  claim 3 , wherein the correspondence relationship between an arrangement pattern of column vectors corresponding to the first pre-coding matrix, and a physical resource in the first sub-band is that:\n an i-th physical resource in the first sub-band corresponds to a k-th arrangement pattern of column vectors corresponding to the first pre-coding matrix, wherein: k=i mod K, wherein i=0, 1, 2 . . . N, k=0, 1, 2, 3, . . . , K\u22121, K is the number of arrangement patterns of column vectors corresponding to the first pre-coding matrix, and N is the number of physical resources in the first sub-band; or k=ceil (i/v) mod K, wherein ceil (i/v) represents the minimum integer no less than i/v, v=RI, or v is the number of antenna ports, i=0, 1, 2 . . . N, k=0, 1, 2, 3, . . . , K\u22121, K is the number of arrangement patterns of column vectors corresponding to the first pre-coding matrix, and N is the number of physical resources in the first sub-band.

Metadata:
- Claim Count in Document: 10.0
- Percentile: 97.0
- Lexical Diversity: 2.78788
- Patent Class: 375.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15934336', '15935035', '15557948', '14434400', '15565200']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5136385929846787
- 35 USC 102 Novelty (BERT): 0.4906169662351245
- Combined Prediction Score: 0.5113364303097233
- Mean Citation Score: 209.479982
- Max Citation Score: 232.42032000000003
- Similarity Product: 178.33679261006358

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