Telefonaktiebolaget Lm Ericsson (publ)

Henry Zheng

Haibin Chu

Chunbo Wang

Yingjiao He

Subrata Mukherjee

Jacky Wu

Richard Wang

Jennifer He

Marshall Xu

Linhai Jiang

Mingqiu Xu

A method for a fallback core network node within core network nodes for a first mobile terminated call towards a mobile subscriber initially assigned to a failing ore network node (failing CNN). The method includes receiving data associated to International Mobile Subscriber Identity and Location Area Identifier (LAI) of a mobile subscriber handled in the failing CNN. The method includes receiving a service request from a home location register (HLR), whereby the service request indicates that the fallback CNN is acting as a fallback CNN for the failing CNN, and sending a response to the service request towards the HLR comprising the roaming Number assigned by the fallback CNN. The method includes initiating a paging request towards the radio network comprising said received LAI of said mobile subscriber, and sending a Service Request towards the HLR comprising the Mobile Station Integrated Services Digital Network Number of the mobile subscriber.

Method for allowing a successful first mobile terminated call towards a mobile subscriber initially assigned to a failing core network node

The present invention relates to a network entity for handling communications towards a mobile station over a communication network, the mobile station being capable of receiving a paging request from a mobile switching center of a pool of mobile switching centers, and, in response to the paging request, of transmitting a paging response over the communication network. The network entity comprises a receiver () for receiving the paging response, the paging response comprising mobile identity information identifying the mobile station, a processor () for identifying the mobile switching center to which to re-transmit the paging response upon the basis of the mobile identity information, and a transmitter () for retransmitting the paging response to the identified mobile switching center.

Network entity for mobile communications towards a mobile station

A method for a call control node (MSC-S) for setting up transmission of voice data from a calling party (BSC) towards a called party (BSC) via at least one media gateway node (MGW-, MGW-) is provided, said call control node (MSC-S) acting as a terminating call control node being adapted for communicating with the at least one media gateway node (MGW-) and with an originating call control node (MSC-S), the method comprising receiving first information from the originating call control node (MSC-S) indicative of at least one media gateway node (MGW-, MGW-) usable for transmitting the voice data, receiving second information from the originating call control node (MSC-S) indicative of a codec (PCM) to be used from the calling party (BSC) towards the at least one media gateway node (MGW-, MGW-) usable for transmitting the voice data, determining whether the voice data is transmittable by the at least one media gateway node (MGW-, MGW-) towards the called party (BSC) encoded by said codec (PCM)determining whether a common media gateway node (MGW-) is usable by both the originating call control node (MSC-S) and the terminating call control node (MSC-S), sending first backward information to the originating call control node (MSC-S) indicative of the said codec (PCM), and sending second backward information to the originating call control node (MSC-S) indicative of the common media gateway node (MGW-).

Using a common media gateway node and a coordinated codec by an originating and a terminating call control node

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Shanghai, China

Henry Zheng