PATENT CLAIM ANALYSIS

Application Number: 16279329
Application Type: Utility
Filing Date: 2019-02
Publication Date: 2019-06
Patent Classification: ["375", "267000"]

Abstract:
A channel state information sending method, a channel state information receiving method, and a device are disclosed, to reduce resource overheads required when a terminal device feeds back CSI to a network device in a scenario of a high precision codebook-based precoding matrix. The method includes: determining, by a terminal device, a precoding matrix W; sending, by the terminal device, a signal including CSI to a network device; obtaining, by the network device, an RI and indication information based on the signal including the CSI; obtaining, by the network device, a PMI2 based on the RI and the indication information; and determining, by the network device, the precoding matrix W based on the rank indicator RI and the second precoding matrix indicator PMI2.

Claim (Index 1):
A channel state information CSI receiving method, comprising:\n receiving, by a network device from a terminal device, a signal comprising channel state information (CSI), the CSI comprising a rank indicator (RI), indication information, and a second precoding matrix indicator PMI2; obtaining, by the network device, the RI and the indication information based on the signal comprising the CSI; obtaining, by the network device, the PMI2 based on the RI and the indication information; and determining, by the network device, a precoding matrix W based on the rank indicator RI and the second precoding matrix indicator PMI2, wherein W comprises W=W 1 \u00d7W 2 , W is a matrix with N t  rows and L columns, W 1  is a matrix with N t  rows and 2I columns, W 2  is a matrix with 2I rows and L columns, N t  is a quantity of antenna ports, L is a rank indicated by the RI, N t  is greater than or equal to L, I is an integer greater than or equal to 1, an element at a location in an i th  row and an l th  column in W 2  is Y i,l , i is an integer greater than or equal to zero and less than or equal to 2I\u22121, l is an integer greater than or equal to zero and less than or equal to L\u22121, Y i,l  comprises Y i,l =X i,l 1 \u00d7X i,l 2 \u00d7X i,l 3 , and X i,l 3  is a complex number with modulus 1; and the indication information indicates that W 2  comprises M X i,l 1  whose values are non-zero, the PMI2 indicates a parameter of W 2 , the parameter of W 2  indicated by the PMI2 comprises all X i,l 1  in W 2  and X i,l 2  and X i,l 3 , which correspond to the M X i,l 1  whose values are non-zero in W 2 , and does not comprise X i,l 2  and X i,l 3  which correspond to X i,l 1  other than the M X i,l 1  whose values are non-zero in W 2 .

Metadata:
- Claim Count in Document: 47.0
- Percentile: 99.0
- Lexical Diversity: 2.69811
- Patent Class: 375.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['16146599', '15971076', '15371840', '14831698', '15398551']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.4466753815821387
- 35 USC 102 Novelty (BERT): 0.5255001612479874
- Combined Prediction Score: 0.4545578595487236
- Mean Citation Score: 255.364284
- Max Citation Score: 332.98795
- Similarity Product: 276.74614199275675

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

Dataset: test