PATENT CLAIM ANALYSIS

Application Number: 16009185
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2018-10
Patent Classification: ["370", "329000"]

Abstract:
This application discloses a downlink channel reconstruction method and apparatus. In one embodiment, the method includes: sending, by a base station, multiple different weighted pilot signals to a terminal, where each of the weighted pilot signals includes a product of a pilot signal and a weighting matrix; receiving, by the base station, multiple different optimal code words returned by the terminal, where each of the optimal code words is obtained based on a channel estimation of a weighted pilot signal; and reconstructing, by the base station, a downlink channel according to the multiple different optimal code words. According to the foregoing method, a quantization error can be reduced, so that a beam direction of a reconstructed channel correctly points to the terminal.

Claim (Index 3):
The method according to  claim 2 , wherein the pilot weighting codebook is Q dist : Q dist = { Q s dist | Q s dist = I N T - 2 \ue89e \ue89e u s dist \ue8a0 ( u s dist ) H u s 2 \ue89e dist , s = 0 , L , S - 1 } , where\n I N T  is an N T -dimension identity matrix, N T  is a quantity of antenna ports of the base station, s is a sequence number variable, S is a quantity of elements of the pilot weighting codebook Q dist , \u03bc s dist =(u 0 dist , u 1 dist , L, u S-1 dist ), \n \u03bc s dist = arg \ue89e max \u03bc r r = 0 , L , Ru r , i , u r , j \u2208 \u03bc r \ue89e min i \u2260 j \ue89e d \ue8a0 ( u r , i , u r , j ) , i, j, and r are free variables, R is a positive integer, \u03bc r = { u r , s | u r , s = v r , s v r , s , s = 0 , \u2026 \ue89e , S - 1 } , and v r,s  is an element in a random N T -dimension complex vector set {v r,0 , . . . , v r,S-1 }.

Metadata:
- Claim Count in Document: 32.0
- Percentile: 94.0
- Lexical Diversity: 2.20635
- Patent Class: 370.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['12937521', '15503677', '15371840', '15326218', '12477255']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5918842289370679
- 35 USC 102 Novelty (BERT): 0.5085694569377814
- Combined Prediction Score: 0.5835527517371394
- Mean Citation Score: 221.723384
- Max Citation Score: 228.8104
- Similarity Product: 131.20798914194108

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