PATENT CLAIM ANALYSIS

Application Number: 15872978
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-06
Patent Classification: ["370", "329000"]

Abstract:
Disclosed are a method, an apparatus, and a system for adjusting a contention window size for performing channel access. In detail, the method includes: receiving a plurality of hybrid automatic repeat request acknowledgement (HARQ-ACK) responses for downlink channel(s) of the specific cell; generating a random number N (N≥0) in a contention window size; and performing the downlink transmission in the specific cell after standing by for N slots while the specific cell is idle, wherein when a ratio of negative acknowledgement (NACK) among the plurality of HARQ-ACK responses is equal to or more than a reference value, the contention window size becomes larger than a previous value, and when the ratio of the NACK among the plurality of HARQ-ACK responses is less than the reference value, the contention window size is reset to a minimum value.

Claim (Index 1):
A method for performing downlink transmission in a specific cell by an apparatus in a cellular wireless communication system, the method comprising:\n receiving hybrid automatic repeat request acknowledgement (HARQ-ACK) feedback for downlink channel transmission(s) of the specific cell, wherein the downlink channel transmission(s) are included in one or more adjacent subframes on the specific cell which are most recently transmitted before the downlink transmission; determining a contention window based on HARQ-ACK value(s) of HARQ-ACK feedback corresponding to downlink channel transmission(s) in reference subframe(s) among the one or more adjacent subframes, wherein when a ratio of negative acknowledgement (NACK) of the HARQ-ACK value(s) is equal to or more than a reference value, the contention window is increased to a next higher allowed value, and when the ratio of the NACK of the HARQ-ACK value(s) is less than the reference value, the contention window is reset to a minimum value, generating a random number N (N\u22650) in the determined contention window; and performing the downlink transmission in the specific cell after sensing a channel on the specific cell at least for N slots while the channel on the specific cell is idle.

Metadata:
- Claim Count in Document: 29.0
- Percentile: 86.0
- Lexical Diversity: 2.15068
- Patent Class: 370.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15444239', '15051683', '15573435', '15576739', '14760092']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.622635067226238
- 35 USC 102 Novelty (BERT): 0.5996686716278705
- Combined Prediction Score: 0.6203384276664012
- Mean Citation Score: 432.2212420000001
- Max Citation Score: 540.4530599999998
- Similarity Product: 488.5539019684802

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

Dataset: test