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 15):
The MN according to  claim 14 , wherein the switchover indication information comprises an IP address prefix allocated by the IP address anchor, an IP address prefix allocated by 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; and\n the processor is configured to: determine whether the IP address prefix allocated by the IP address anchor meets a preset condition, wherein the preset condition is: the IP address prefix allocated by the IP address anchor does not exist in previous switchover indication information received by the MN, or the IP address prefix allocated by the IP address anchor exists in previous switchover indication information received by the MN and is identified as being allocated by the another IP address anchor; and if the IP address prefix allocated by the IP address anchor meets the preset condition, determine that the accessed IP subnet has changed; or if the IP address prefix allocated by the IP address anchor does not meet the preset condition, determine that the accessed IP subnet has not changed.

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): 0.5709518974749833
- 35 USC 102 Novelty (BERT): 0.5095391566586079
- Combined Prediction Score: 0.5648106233933459
- Mean Citation Score: 209.635612
- Max Citation Score: 216.40446
- Similarity Product: 119.24208193136216

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