Message interworking gateway
First Claim
1. A method of performing message interworking between on one side an IMS overlay network and on the other side a circuit switched PLMN home network associated with said IMS overlay network or a circuit switched PLMN foreign network, the method comprising the steps of:
- intercepting a routing request sent by a sender SMSC in the foreign network or in the home network, the routing request concerning a recipient potentially available on the IMS overlay network, the recipient being a user device or an IMS application;
a gateway processing the intercepted routing request and determining accordingly if the recipient is available on the IMS overlay network;
if the recipient is not available on the IMS overlay network, the gateway returning the intercepted routing request to the home network; and
if the recipient is available on the IMS overlay network, the gateway responding to the intercepted routing request, and subsequently receiving a message for the recipient, performing protocol conversion, and delivering a converted message to the recipient in the IMS network.
1 Assignment
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Accused Products
Abstract
A message interworking gateway (1) resides in an overlay IMS network (2) associated with a home SS7 network (10). The gateway (1) intercepts requests for routing information (MAP-SRIs) from either the home SMSC (11) or a foreign SMSC. If the message recipient is available on the IMS overlay network (2) the gateway (1) performs protocol translation AND routes the translated message to the recipient. If not, the gateway returns the SRI to the home (10) network. The gateway operates without updating the home HLR (12) with user presence data and hence voice traffic can be kept on circuit switched technology without being routed to the IMS overlay network (2).
57 Citations
24 Claims
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1. A method of performing message interworking between on one side an IMS overlay network and on the other side a circuit switched PLMN home network associated with said IMS overlay network or a circuit switched PLMN foreign network, the method comprising the steps of:
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intercepting a routing request sent by a sender SMSC in the foreign network or in the home network, the routing request concerning a recipient potentially available on the IMS overlay network, the recipient being a user device or an IMS application;
a gateway processing the intercepted routing request and determining accordingly if the recipient is available on the IMS overlay network;
if the recipient is not available on the IMS overlay network, the gateway returning the intercepted routing request to the home network; and
if the recipient is available on the IMS overlay network, the gateway responding to the intercepted routing request, and subsequently receiving a message for the recipient, performing protocol conversion, and delivering a converted message to the recipient in the IMS network. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification