Base station subsystem multiplexer with support for local switching
AssigneeParallel Limited
InventorsRobert D. Schmidt, Siu Bun Chan, Qiming Zhu
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Abstract
In one embodiment, a wireless system comprises a host MSC/VLR of a public land mobile network (PLMN) and a plurality of base station subsystems (BBSs). Each BSS includes a respective base station controller (BSC) and one or more base transceiver stations (BTSs). The wireless system further comprises a virtual base station controller (VBSC) communicatively coupled to the plurality of BSSs and the host MSC/VLR. The VBSC appears, from the perspective of the host MSCNLR, to be a base station controller for the BTSs in the plurality of BSSs. The VBSC and at least some of the BSSs include functionality for locally switching calls in the BSSs.
Claims11
A wireless system comprising:
- a host MSC/VLR of a public land mobile network (PLMN);
- a plurality of base station subsystems (BSSs), each BSS including a respective base station controller (BSC) and one or more base transceiver stations (BTSs);
- and
- a virtual base station controller (VBSC) communicatively coupled to the plurality of BSSs and the host MSC/VLR, wherein
- the VBSC is configured to appear, from a perspective of the host MSC/VLR, to be a base station controller for the BTSs in the plurality of BSSs, and
- the VBSC and at least one of the BSSs include functionality for locally switching calls in the BSSs, and user-to-user information (UUI) inserted in mobile originated (MO) legs of a call are used to match the MO and mobile terminated (MT) legs of calls in order to determine if the call should be locally switched.
Dependencies are inferred from the claim text.