PATENT CLAIM ANALYSIS

Application Number: 15870171
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-05
Patent Classification: ["370", "331000"]

Abstract:
Embodiments of the present invention relate to the field of communications technologies, and provide an IP address management method and apparatus, an IP address anchor, and a mobile node. The method includes: when detecting that a mobile node (MN) accesses an IP subnet on which an IP address anchor is located, obtaining, by the IP address anchor, a valid IP address prefix being used by the MN; and sending, by the IP address anchor, switchover indication information to the MN according to the valid IP address prefix, so that the MN determines, according to the switchover indication information, whether the accessed IP subnet has changed. The present invention resolves a prior-art problem that an MN cannot determine whether an IP subnet accessed by the MN has changed, thereby achieving a technical effect that an MN can accurately determine whether an IP subnet accessed by the MN has changed.

Claim (Index 2):
The method according to  claim 1 , wherein the sending, by the IP address anchor, switchover indication information to the MN according to the valid IP address prefix comprises:\n determining, by the IP address anchor, whether the valid IP address prefix already comprises an IP address prefix allocated by the IP address anchor; if the valid IP address prefix does not comprise an IP address prefix allocated by the IP address anchor, allocating, by the IP address anchor, an IP address prefix to the MN, and differentially identifying the IP address prefix allocated by the IP address anchor and an IP address prefix that is in the valid IP address prefix and that is allocated by another IP address anchor; or if the valid IP address prefix already comprises an IP address prefix allocated by the IP address anchor, differentially identifying, by the IP address anchor, the IP address prefix allocated by the IP address anchor and an IP address prefix that is in the valid IP address prefix and that is allocated by another IP address anchor; and sending, by the IP address anchor, the switchover indication information to the MN, wherein the switchover indication information comprises the IP address prefix allocated by the IP address anchor, the IP address prefix allocated by the another IP address anchor, and a type identifier, wherein the type identifier is used to differentially identify the IP address prefix allocated by the IP address anchor and the IP address prefix allocated by the another IP address anchor.

Metadata:
- Claim Count in Document: 18.0
- Percentile: 86.0
- Lexical Diversity: 2.47059
- Patent Class: 370.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['11582476', '12999747', '14358481', '11516551', '12744628']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5777209734114498
- 35 USC 102 Novelty (BERT): 0.481089005497952
- Combined Prediction Score: 0.5680577766201
- Mean Citation Score: 209.635612
- Max Citation Score: 216.40446
- Similarity Product: 170.22096075232744

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

Dataset: test