US 2002/0178247 A1 · Determining control of an internet communication between a sender and a receiver

Abstract

The present invention addresses the possibility of a race condition that arises due to lack of a communication mechanism between the UE and the GGSN, saving unnecessary consumption of radio resources and reducing chances of collisions within the network. Also, the invention prevents the possibility that neither the UE nor GGSN respond appropriately to the Resource Reservation Protocol (RSVP) requirements by halting transmission of any RSVP path/refreshment messages to the IP network in order to refresh/maintain the reservation states due lack of clear assignment of responsibility. This lack of clear understanding between the UE and the GGSN may result in the expiration of the IP network resource reservations made earlier for media streams. This scenario can occur with a higher probability in the absence of this dialog.

Claims16

Dependent claims

A method for assigning responsibility for resource reservation protocol (RSVP) signaling in order to support multimedia communications between a user equipment (UE) in a wireless communication network and a user of an external network, the wireless network having both the UE and a general packet radio service gateway support node (GGSN) capable of supporting RSVP signaling, the method comprising:

providing a policy control function (PCF) capable of assigning RSVP signaling to either the GGSN or UE;
the PCF assigning RSVP signaling to the GGSN or UE;
if the PCF assigns RSVP signaling to the GGSN:
the PCF signaling the GGSN assignment to the GGSN;
the PCF signaling the UE not to perform RSVP signaling;
and
in response to receiving the GGSN assignment, the GGSN performing RSVP signaling;
and
if the PCF assigns RSVP signaling to the UE:
the PCF signaling the UE assignment to the GGSN;
the PCF signaling the GGSN not to perform RSVP signaling;
and
in response to receiving the UE assignment, the UE performing RSVP signaling.

10 more elements

Dependencies are inferred from the claim text.

Determining control of an internet communication between a sender and a receiver

Life of this patent

Determining control of an internet communication between a sender and a receiver

Life of this patent

Abstract

Claims16