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2 lis 2023 · Telefony komórkowe informują w pewnych sytuacjach sieć, w którym jej rejonie się znajdują. Ułatwia i przyspiesza to ich znajdowanie. Czynność taka to właśnie Location Update i jest wykonywana: przy przekraczaniu wyznaczonego obszaru w danej sieci (zmianie tzw. Location Area) przy zmianie sieci komórkowej Pewną odmianą są także PLU, IMSI attach oraz IMSI detach.
24 mar 2017 · Yes, in GSM/MAP, this is called the location update procedure, not the location registration procedure as in IS-41. Renold's answer provides a good answer as to the details of your question. For a general overview of why the location update procedure is needed and how it is managed in mobile networks, refer to my answer to your earlier question ...
A mobile phone in motion keeps the network informed about changes in the location area. If the mobile moves from a cell in one location area to a cell in another location area, the mobile phone should perform a location area update to inform the network about the exact location of the mobile phone.
21 lip 2023 · The Update Location Request (ULR) is a critical signaling message in mobile telecommunications networks like GSM, UMTS, and LTE. It is used to update the location of a mobile subscriber in the Home Location Register (HLR) or Home Subscriber Server (HSS) when the subscriber moves to a new location area or tracking area.
21 lip 2023 · ULR-Flags (Update Location Request Flags) are parameters used in GSM and UMTS networks during the Update Location procedure. These flags provide specific instructions to the network, controlling how the Update Location request is processed and what information is included in the response.
The steps involve in a location update are RR connection establishment, service request, Authentication (except for periodic registration), ciphering mode setting, location updating and RR connection release.
This paper describes the technical background, roaming scenarios, possible problems to be encountered and solutions that can be found when a GSM900-GSM1800 customer roams in a GSM1900 network and reverse. The paper also describes the practical solutions currently adopted and their possible coexistence.
