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Using mobile device identifiers to speed up call/session setup in wireless systems

IP.com Disclosure Number: IPCOM000021477D
Original Publication Date: 2004-Jan-20
Included in the Prior Art Database: 2004-Jan-20
Document File: 4 page(s) / 43K

Publishing Venue

Motorola

Abstract

In wireless systems where mobile equipment of many types and/or configurations is in use, it is often necessary for the infrastructure to query the mobile equipment for its capabilities prior to assigning it new service configurations. If such a signaling exchange needs to take place at the beginning or upon the resumption of a call or a session, the result can be a relatively lengthier setup time, which would be inclusive of the signaling exchange. Currently, given the presence of identity modules that carry the subscription information and that can easily be attached to various pieces of mobile equipment, the call or session setup signaling exchange focuses on the identity of the subscriber rather than the identity of the mobile equipment. The latter, if provided, is merely used to check against a registry of invalidated pieces of mobile equipment or to derive some unique low layer identifier or functional parameter. This paper discusses an approach where information derived from the mobile equipment identifiers is used to derive the capabilities and characteristics of the mobile equipment by searching against a list of pre-store profiles. The upfront availability of the information on capabilities and characteristics of the mobile equipment allow for a call or a session setup that no longer needs a signaling exchange to retrieve this information from the mobile equipment. Thus setup time is being saved by reducing the signaling exchange.

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Using mobile device identifiers to speed up call/session setup in wireless systems

by Valentin Oprescu-Surcobe

Abstract: In wireless systems where mobile equipment of many types and/or configurations is in use, it is often necessary for the infrastructure to query the mobile equipment for its capabilities prior to assigning it new service configurations. If such a signaling exchange needs to take place at the beginning or upon the resumption of a call or a session, the result can be a relatively lengthier setup time, which would be inclusive of the signaling exchange. Currently, given the presence of identity modules that carry the subscription information and that can easily be attached to various pieces of mobile equipment, the call or session setup signaling exchange focuses on the identity of the subscriber rather than the identity of the mobile equipment. The latter, if provided, is merely used to check against a registry of invalidated pieces of mobile equipment or to derive some unique low layer identifier or functional parameter.

This paper discusses an approach where information derived from the mobile equipment identifiers is used to derive the capabilities and characteristics of the mobile equipment by searching against a list of pre-store profiles. The upfront availability of the information on capabilities and characteristics of the mobile equipment allow for a call or a session setup that no longer needs a signaling exchange to retrieve this information from the mobile equipment. Thus setup time is being saved by reducing the signaling exchange.

Fast setup of phone calls and data sessions is becoming an important indicator of the quality of service offered by all communication devices, in general, and by wireless device, especially. The advent of instant messaging, of presence service and of always-on devices, has decreased the end-users tolerance for high latency services and devices. As those application make the way into the enterprise world, high latency systems move beyond just being annoying and start translating into wasted work time and thus, wasted money. Because of these considerations, it is important that the inefficiencies encountered during the setup of wireless calls and sessions be reduced and, where possible, eliminated.

         One source of delay during call and session setup is the signaling exchange that may occur in some wireless systems. Because there is a large variety of mobile equipment, the fixed part of the network (infrastructure or access point) may need to know the exact capabilities and characteristics of each piece of mobile equipment accessing the network. Such knowledge is necessary to allow for the network to support the mobile equipment and to enable, adapt and optimize the transfer. A typical signaling exchange for the purpose of the infrastructure finding out the capabilities and configurations of the mobile equipment is shown in Figure 1, for cdma2000®[1] systems.

Figure 1. Signaling exchange dur...