Loss of signalling bearer transport

DC Zamora, SF Alonso, JJP BALBÁS… - US Patent 10,063,597, 2018 - Google Patents
Being aware of a loss of signalling bearer transport through an IP Connectivity Access
Network is an important issue. Therefore, the present invention relies on amending the …

Loss of signalling bearer transport

DC Zamora, SF Alonso, JJP Balbás, S Terrill - US Patent 9,635,062, 2017 - Google Patents
Being aware of a loss of signalling bearer transport through an IP Connectivity Access
Network is an important issue. Therefore, the present invention relies on amending the …

Service redirection from a policy and charging control architecture

FC Castro, AML Nieto, IM Cabello - US Patent 11,647,085, 2023 - Google Patents
the PCC architecture includes, amongst other entities, a Policy and Charging Control Rules
Function (hereinafter PCRF) in charge of policy control decision and flow based charging …

Method to protect against manipulated charging signaling data in IMS networks

K Hoffmann - US Patent App. 11/174,889, 2007 - Google Patents
Method to protect against manipulated charging signaling data in IMS networks In the prior
art CDR tickets are exchanged between devices/functionalities of an IMS system. This can …

SPI handling between UE and P-CSCF in an IMS network

K Kalepu, S Mufti - US Patent 10,412,128, 2019 - Google Patents
Abstract Managing Security Parameter Information (SPIs) to prevent race condition failures
begins where a system negotiates SPIs along with associated expiration times, and re …

Subscriber-specific tracing in communications

JO Soderlund, JP Hyttinen, JO Nousiainen… - US Patent …, 2016 - Google Patents
A method for subscriber tracing comprises capturing user plane packets in a network
apparatus implementing a 3GPP policy and charging enforcement functionality PCEF …

SPI handling between UE and P-CSCF in an IMS network

K Kalepu, S Mufti - US Patent 10,193,939, 2019 - Google Patents
Primary Examiner–Thai D Hoang (74) Attorney, Agent, or Firm—Perkins Coie LLP (57)
ABSTRACT Managing Security Parameter Information (SPIs) to prevent race condition …

Detection of bearer loss in an IP-based multimedia session

CZ Liu, SS Mathai - US Patent App. 12/313,630, 2010 - Google Patents
The present invention provides a method for detecting bearer loss in an IP-based
multimedia session. A multimedia session is initiated by an access terminal. A Policy and …

Method for selecting a policy and charging rules function server on a non-roaming scene

T Rui, Z Zong, X Zhou, J Song, J Zhu - US Patent 9,019,890, 2015 - Google Patents
The present invention discloses a method for selecting a policy and charging rules function
server in a non-roaming scenario to achieve that the PCC policies for each IP-CAN session …

Cleaning up hanging lawful interception resources from a triggered point of interception when a triggering function fails

N Surana, KR Dammalapati - US Patent 11,601,818, 2023 - Google Patents
H04L63/306—Network architectures or network communication protocols for network
security for supporting lawful interception, monitoring or retaining of communications or …