Routing in an communications network having a distributed S/PGW architecture

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United States of America Patent

PATENT NO 10097460
APP PUB NO 20170310592A1
SERIAL NO

15517879

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Abstract

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A non-transitory computer readable medium has instructions stored therein to be executed by a packet processing unit (PPU) in a communications network to allow a plurality of PPUs in the communication network to route data packets. The plurality of PPUs collectively maintain a distributed hash table (DHT). The DHT stores a distributed routing table (DRT), where the DRT includes a DRT entry that maps a key to a value. The key is based on a destination Internet Protocol (IP) address and an access point name (APN) associated with an IP session of a user entity (UE). The value represents both an IP address of one of the plurality of PPUs currently serving the IP session of the UE and an IP session identifier that identifies, to that PPU currently serving the IP session of the UE, the IP session of the UE.

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Patent Owner(s)

  • TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kristiansson, Johan Lulea, SE 25 397
Synnergren, Per Gammelstad, SE 47 726

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