Alcatel Lucent

Ivy Mao

Shanawaz Shaik

Robert Alexander Mann

Haiqing H Ma

Xiong Xue

Kugendran Sabaratnam

Matthew Yee

Peter Wang

Various exemplary embodiments relate to a method performed by a policy and charging rules node (PCRN), the method including: sending a first Sy spending limit request (SLR) to an online charging system (OCS) without specifying any policy counters; receiving from the OCS a first spending limit answer (SLA) including policy counters and associated status reports for a subscriber; creating an Sy session; determining required policy counters based upon the policy counter statuses; sending a second Sy SLR to the OCS for the required policy counters; and receiving a second SLA including status reports for the required policy counters.

Sy session creation and recovering from inconsistent session state between PCRF and OCS

Various exemplary embodiments relate to a method performed by a policy and charging rules node (PCRN), the method comprising: receiving an event trigger from a policy and charging enforcement node (PCEN) indicating that a subscriber is out of credit; installing temporary PCC rules to handle the out of credit status of the subscriber; receiving an indication that the subscriber has completed a reallocation of credit action; uninstalling the temporary PCC rules and restoring the original PCC rules after receiving an indication of reallocation of credit.

Temporarily disable out-of-credit PCC rule

Various exemplary embodiments relate to a method of identifying a subscriber at a network node. The method may include: receiving a message including a network access identifier (NAI); removing the first digit from the NAI to form a stripped NAI; determining whether the stripped NAI corresponds to a subscriber; determining whether the NAI corresponds to a subscriber; adding a hint digit to form an extended NAI, and determining whether the extended NAI corresponds to a subscriber; and if any of the NAIs correspond to a subscriber, using the corresponding NAI to identify the subscriber. Various exemplary embodiments relate to a policy and charging rules node including: a subscriber cache including a subscriber identifier; an interface configured to receive a NAI; a NAI modifier configured to form an extended NAI and a stripped NAI; and a subscriber identification module configured to determine whether a NAI is stored in the subscriber cache.

NAI subscription-ID hint digit handling

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Kanata, Canada

Ivy Mao