PATENT CLAIM ANALYSIS

Application Number: 16165371
Application Type: Utility
Filing Date: 2018-10
Publication Date: 2019-02
Patent Classification: ["375", "267000"]

Abstract:
A method of transmitting a Physical Layer Convergence Procedure (PLCP) frame in a Very High Throughput (VHT) Wireless Local Area Network (WLAN) system includes generating a MAC Protocol Data Unit (MPDU) to be transmitted to a destination station (STA), generating a PLCP Protocol Data Unit (PPDU) by adding a PLCP header, including an L-SIG field containing control information for a legacy STA and a VHT-SIG field containing control information for a VHT STA, to the MPDU, and transmitting the PPDU to the destination STA. A constellation applied to some of Orthogonal Frequency Division Multiplex (OFDM) symbols of the VHT-SIG field is obtained by rotating a constellation applied to an OFDM symbol of the L-SIG field.

Claim (Index 20):
An apparatus, comprising:\n at least one wireless local area network transceiver; at least one antenna, communicatively coupled to the local area network transceiver; at least one processor; at least one memory including computer program code, the memory and the computer program code configured to, working with the processor, cause the apparatus to perform at least the following:\n receive, by the local area network transceiver, a Physical Layer Convergence Procedure Protocol Data Unit (PPDU), the PPDU being received by the local area network by way of the antenna, the PPDU comprising:\n a legacy signal field including a first symbol that is mapped onto a first binary phase shift keying (BPSK) constellation; \n a Very High Throughput Signal (VHT-SIG) field including a second symbol and a third symbol, the second symbol being mapped onto the first BPSK constellation, and the third symbol being mapped onto a second BPSK constellation, and the second BSPK constellation being rotated by 90\u00b0 counter-clockwise relative to the first BPSK constellation; and \n wherein the second symbol includes an indicator indicating Single User-Multiple Input Multiple Output (SU-MIMO) transmission or multi user-MIMO (MU-MIMO) transmission; \n the third symbol includes a cyclic redundancy check (CRC) for the second symbol and, at least a portion of, the third symbol; \n the PPDU omits an HT SIG field between the legacy field and the VHT-SIG field; \n the VHT-SIG field further includes a multiplexing number indicating a number of spatial streams; \n the second symbol includes the multiplexing number indicating the number of spatial streams; \n the VHT-SIG field is immediately after the legacy field; \n the second symbol is immediately after the first symbol; and \n the third symbol is immediately after the second symbol.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 97.0
- Lexical Diversity: 1.98529
- Patent Class: 375.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['13943572', '15841385', '14985317', '14560971', '12941974']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6299490719367838
- 35 USC 102 Novelty (BERT): 0.6678321284624246
- Combined Prediction Score: 0.6337373775893479
- Mean Citation Score: 670.63764
- Max Citation Score: 713.452
- Similarity Product: 629.1553528409004

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