PATENT CLAIM ANALYSIS

Application Number: 15921482
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-07
Patent Classification: ["370", "335000"]

Abstract:
The present disclosure provides an orthogonal codes based code division multiplexing method of performing the code division multiplexing of demodulation reference signals in multiple layers of resource blocks by using orthogonal matrices, the method comprising: changing the order of chips in particular rows of a first orthogonal matrix to obtain a second orthogonal matrix with the changed order of chips; and multiplying the chips in respective rows of the second orthogonal matrix by the demodulation reference signals in corresponding layers of resource blocks correspondingly in the time direction to obtain code division multiplexing signals. The technical scheme of the present disclosure can improve the power jitter situation of downlink signals on the time, thereby the usage efficiency of the power amplifier at the base station side can be improved.

Claim (Index 1):
A communication apparatus comprising:\n a memory, which, in operation, stores a first orthogonal matrix and a second orthogonal matrix, each matrix including N rows and N columns where N is a natural number equal to or larger than 2, the second orthogonal matrix generated by cyclically shifting chips of selected rows of the first orthogonal matrix; and a processor, which, in operation, controls: reception of a signal, in which first multiplying results of a first subcarrier group are mapped in a first time frame and second multiplying results of a second subcarrier group which is different from the first subcarrier group are mapped in a second time frame, with the first and second subcarrier groups included in a resource block, the first multiplying results obtained by multiplying demodulation reference signals for N respective layers included in a first layer group with chips of N respective rows of the first orthogonal matrix, and the second multiplying results obtained by multiplying demodulation reference signals for N respective layers included in a second layer group with chips of N respective rows of the second orthogonal matrix; demultiplexing of the demodulation reference signals for the first layer group, by multiplying signals mapped to subcarriers in the first subcarrier group with the chips of N respective rows of the first orthogonal matrix; and demultiplexing of the demodulation reference signals for the second layer group, by multiplying signals mapped to subcarriers in the second subcarrier group with the chips of N respective rows of the second orthogonal matrix.

Metadata:
- Claim Count in Document: 11.0
- Percentile: 90.0
- Lexical Diversity: 1.92857
- Patent Class: 370.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15426937', '14455236', '14799443', '15163250', '13642336']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6015256395200401
- 35 USC 102 Novelty (BERT): 0.5944321880285555
- Combined Prediction Score: 0.6008162943708917
- Mean Citation Score: 458.50422
- Max Citation Score: 499.44113
- Similarity Product: 481.2860817901945

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