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Method and apparatus for providing switch capability mediation in a mobile telephone system

  • US 6,026,298 A
  • Filed: 01/11/1997
  • Issued: 02/15/2000
  • Est. Priority Date: 01/11/1997
  • Status: Expired due to Term
First Claim
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1. A method of providing switch capability mediation, in a home location register (HLR), between two mobile switching centers (MSCs), wherein a first MSC is an originating MSC which receives a call origination request for reaching a subscriber and a second MSC is a serving MSC which serves the subscriber, the method comprising the steps of:

  • determining whether the two MSCs implement different capabilities, the determining step including the step of reading a SUBS file storing a profile record of the subscriber to retrieve an MSC identification (MSCID) of the serving MSC for accessing an MSCID point code map (MPCM) file record associated with the serving MSC; and

    if the two MSCs implement different capabilities, providing capability mediation between the two MSCs comprising the steps of;

    determining, for each different capability involved, which one of the following three situations is present;

    (i) the originating MSC has this capability, but the serving MSC does not;

    (ii) the originating MSC does not have this capability, but the serving MSC does; and

    (iii) both the originating and serving MSCs have this capability but implement it in different ways; and

    providing appropriate mediation in accordance with the determined one of the three situations.

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