PATENT CLAIM ANALYSIS

Application Number: 16138742
Application Type: Utility
Filing Date: 2018-09
Publication Date: 2019-01
Patent Classification: ["380", "277000"]

Abstract:
A novel key management approach is provided for securing communication handoffs between a UE and two base stations. A UE establishes a secure communication session with a first base station based on a first master session key based on a master transient key. The UE obtains a second base station identifier associated with a second base station and sends a message associated with a handoff to either the first base station or the second base station. The UE generates a second master session key based on at least the master transient key and the second base station identifier. The second master session key is used for secure communications with the second base station in connection with an intra-authenticator handoff from the first base station to the second base station. The UE then moves the secure communication session to the second base station.

Claim (Index 1):
A method of wireless communication at an User Equipment (UE), comprising:\n deriving a master transient key based on a master key and an identifier; establishing a secure communication session with a first base station based on a first master session key that is based on the master transient key; obtaining a second base station identifier associated with a second base station; sending a message to at least one of the first base station or the second base station, the message being associated with a handoff of the secure communication session to the second base station; generating a second master session key based on at least the master transient key and the second base station identifier, wherein the second master session key is different than the first master session key, wherein the second master session key is used for secure communications with the second base station in connection with an intra-authenticator handoff from the first base station to the second base station associated with a same authenticator in a cellular network; and moving, in the handoff, the secure communication session to the second base station, wherein the second master session key is used in the secure communication session with the second base station.

Metadata:
- Claim Count in Document: 86.0
- Percentile: 97.0
- Lexical Diversity: 2.79245
- Patent Class: 380.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15672636', '12109082', '11843583', '12474764', '14285917']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.4672350683643495
- 35 USC 102 Novelty (BERT): 0.6055799199771322
- Combined Prediction Score: 0.4810695535256278
- Mean Citation Score: 424.0246599999999
- Max Citation Score: 559.0416
- Similarity Product: 496.8540625883104

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