PATENT CLAIM ANALYSIS

Application Number: 16049080
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2019-01
Patent Classification: ["375", "267000"]

Abstract:
A codebook C is provided in a MIMO transmitter as well as a MIMO receiver. The codebook C will include M codewords c i , where i is a unique codeword index for each codeword c i . Each codeword defines weighting factors to apply to the MIMO signals, and may correspond to channel matrices or vectors to apply to the MIMO signals prior to transmission from the respective antennas of the MIMO transmitter. The present invention creates codeword subsets S i  for each codeword c i  of the codebook C. Each codeword subset S i  defines L codewords c j , which are selected from all the codewords c i  in the codebook C. The codewords c j  in a codeword subset S i  are the L codewords in the entire codebook that best correlate with the corresponding codeword c i .

Claim (Index 1):
A method of providing feedback from a wireless receiver, the method comprising, at the wireless receiver:\n selecting a first codebook index; transmitting, at a first time, first feedback comprising the first codebook index; selecting a first subset index, wherein the first subset index is selected from a first subset of codebook indices corresponding to the first codebook index, wherein the first subset index of the first subset of codebook indices corresponds to a set of weighting factors to be applied to multiple input multiple output (MIMO) signals by an orthogonal frequency division multiplexing (OFDM) wireless transmitter; transmitting, at a second time, second feedback comprising the first subset index; determining whether to transmit a second codebook index or a second subset index, wherein the second subset index is selected by the wireless receiver from the first subset of codebook indices corresponding to the first codebook index; and transmitting, at a third time, third feedback comprising one of the second codebook index or the second subset index.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 95.0
- Lexical Diversity: 2.1791
- Patent Class: 375.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15665711', '15175246', '12066322', '15852585', '14072779']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5519026552870921
- 35 USC 102 Novelty (BERT): 0.5364913054218674
- Combined Prediction Score: 0.5503615203005697
- Mean Citation Score: 383.866384
- Max Citation Score: 384.58652
- Similarity Product: 358.62055910012253

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

Dataset: test