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Method-and-apparatus-for-wireless-network-architecture-based-on-subscriber-distribution

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Method and apparatus for wireless network architecture based on subscriber distribution

Details

Inventors: Ernam, Hakan; Xu, Jim; Reece, Christopher S.;
Assignee: Northern Telecom Limited (Montreal, CA)
Primary Examiner: Vo; Nguyen
Assistant Examiner: Banks-Harold; Marsha D.
Attorney, Agent or Firm: Haynes & Boone, L.L.P.

A method and apparatus for scaling a wireless telecommunications network having an architecture based upon subscriber distribution includes providing a base station subsystem (BSS) and a pool of mobile switching centers (MSCs) interconnected with one another. The mobile switching centers include visitor location registers (VLRs). Lastly, a dispatcher mobile switching center (DMSC) is provided, the dispatcher mobile switching center being coupled between the base station subsystem (BSS) and the pool of mobile switching centers (MSCs) for establishing communication between the base station subsystem (BSS) and the pool of mobile switching centers (MSCs). The dispatcher mobile switching center (DMSC) further provides for distributing mobile station subscribers and call related work among the pool of mobile switching centers (MSCs).

DETAILED DESCRIPTION The wireless network architecture of the present disclosure includes a networking architecture for multiple mobile switching center wireless networks employing a dispatcher switch to distribute subscribers and call related work among the mobile switching centers of a given network.
According to one embodiment of the present disclosure, a method for scaling a wireless telecommunications network having an architecture based upon subscriber distribution includes providing a base station subsystem (BSS) and a pool of mobile switching centers (MSCs) interconnected with one another.
The mobile switching centers include visitor location registers (VLRs).
Lastly, a dispatcher mobile switching center (DMSC) is provided, the dispatcher mobile switching center (DMSC) being coupled between the base station subsystem (BSS) and the pool of mobile switching centers (MSCs) for establishing communication between the base station subsystem (BSS) and the pool of mobile switching centers (MSCs).
The dispatcher mobile switching center (DMSC) further is provided for distributing mobile station subscribers and call related work among the pool of mobile switching centers (MSCs).
According to another embodiment, providing the dispatcher mobile switching center (DMSC) includes providing a table of subscribers and corresponding MSC/VLR entries.
Each subscriber corresponds to a mobile station identification (mob.
sub.
-- id) and each corresponding MSC/VLR entry corresponds to a particular mobile switching center/visitor location register identification (VLR.
sub.
-- id) of the pool of mobile switching centers (MSCs).
A corresponding MSC/VLR entry is assigned to the subscriber when the mobile station of the respective subscriber is initially powered up.
The table further may include MSC/VLR identifications (VLR.
sub.
-- ids) indexed by identity of mobile subscribers (mob.
sub.
-- ids).
The table still further may include a pseudo visitor location register (pseudo VLR) having a structure optimized for very fast searches and updates

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