| Patent application number | Description | Published |
|---|
| 20090047936 | METHOD FOR CODEC NEGOTIATION AND SELECTION - A method of modifying a call setup message for a call from a first terminal to a second terminal, the call setup message being sent from the first terminal to a network node via an intermediate node which handles at least some signaling or traffic associated with the call, wherein the network node is responsible for negotiating call setup requirements for the call to the second terminal, the method comprising the steps of: intercepting the call setup message at the intermediate node; identifying one or more preferences or capabilities associated with the intermediate node which may impact the way in which the intermediate node can handle signaling or traffic associated with the call; modifying the call setup message based on information relating to said preferences or capabilities; and sending the modified call setup message to the network node, in order that the node can effect said negotiations based on the modified message. | 02-19-2009 |
| 20090076802 | WIDEBAND CODEC NEGOTIATION - The invention proposes several methods for codec handling. In specific, methods involving providing a supported codec list of a Call Control Server are described. A node receives information, whether a terminal supports a wideband codec, wherein the information is received in call set up signaling from the terminal of the subscriber. Furthermore, configuration information is retrieved, whether a Radio Access Node supports the wideband codec. Additionally, information is retrieved, whether a media gateway supports the wideband codec, wherein the information is either provided by the operator or retrieved from the media gateway (MGW1, MGW2, MGWx). The information is analyzed and in response to the analysis a supported codec list is provided. Furthermore, alternative embodiments and devices adapted for the methods are disclosed. | 03-19-2009 |
| 20090109987 | ENHANCED MEDIA GATEWAY NEGOTIATION - A method and system of negotiating Media Gateways (MGs) between a plurality of call control nodes (CCNs). The system includes an originating CCN which builds an original list of configured Media Gateways capable of being used in a call by the originating CCN. The first CCN associates an identifier and a priority with each Media Gateway in the list prior to sending the list to a subsequent CCN. The subsequent CCN removes from the original list any identifiers associated with any MG in the original list of identifiers which is not capable of being used in the call by the subsequent CCN. The subsequent CCN then forms a modified list of identifiers associated with at least one MG capable of being used in a call by the originating CCN and the subsequent CCN. The subsequent CCN also selects a specified MG from the modified list and sends a first backward message from the second CCN to the originating CCN identifying the specified MG. The originating CCN may then validate that the specified MG is on the original list of identifiers and selects the specified MG for the call. | 04-30-2009 |
| 20100061363 | SYSTEM AND METHOD FOR MEDIA GATEWAY NEGOTIATION - A system and method of negotiating Media Gateways (MGs) between a plurality of call control nodes (CCNs). The system includes a first CCN which builds an original list of identifiers associated with at least one MG capable of being used in a call by the first CCN. The system also includes a second CCN for receiving the original list of identifiers from the first CCN. The second CCN removes from the original list any identifiers associated with any MG in the original list of identifiers which is not capable of being used in the call by the second CCN. The second CCN then forms a modified list of identifiers associated with at least one MG capable of being used in a call by the first CCN and the second CCN. The second CCN also selects a specified MG from the modified list and sends a first backward message from the second CCN to the first CCN identifying the specified MG. The first CCN may then validate that the specified MG is on the original list of identifiers and selects the specified MG for the call. | 03-11-2010 |
| 20100070286 | Technique for controlling codec selection along a complex call path - The invention relates to a technique of operating a call control node controlling at least one section of a call path. The call path includes between two opposite edge nodes a multi-section harmonization path along which codec selection is to be harmonized. A method embodiment of the technique, wherein the call control node is a transfer node in the harmonization path between the edge nodes, comprises the steps of determining if the call control node is a transfer node of the harmonization path; determining if a codec used for the at least one section controlled by the call control node fulfils a predefined harmonization criterion; and providing, in case the used codec does not fulfill the harmonization criterion, a harmonization trigger indication to at least one of the edge nodes of the harmonization path for initiating harmonization. | 03-18-2010 |
| 20100110980 | Technique for controlling establishment of a tandem-free transcoder operation - The invention relates to a technique for controlling establishment of a tandem free operation (TFO) for transfer of TFO frames including content frames between a first and a second transcoder unit without transcoding of the content frames. A method aspect of the technique comprises the steps of transmitting, in case a remotely used codec does not meet a codec compatibility condition, a first transparent mode message indicating to in-path equipment a transparent mode for subsequent transparent TFO negotiation, and transmitting, in the transparent mode, a TFO configuration frame indicating a local TFO codec list. | 05-06-2010 |
| 20100150023 | Method and node for the control of a connection in a communication network - A Method for controlling an establishment or a modification of a connection according to a packet based transmission scheme in a communication network ( | 06-17-2010 |
| 20100161325 | Individual Codec Pathway Impairment Indicator for use in a Communication System - A system and method are described for controlling the setup of a connection in a communication network that includes a set of nodes, such as Mobile Switching Centers (MSCs) and Media Gateways (MGWs). In one example, a speech connection is established between MGWs subject to the control of the MSCs, which can selectively activate or deactivate codecs along the connection. The codecs are selected from a list of supported codecs, each potentially affecting connection quality by differing amounts. A Total Accumulated Impairment (TAI) element is forwarded between the MSCs and step by step updated by these MSCs that includes individual partially accumulated impairment values corresponding to each of the supported codec candidates. Each individual indicator value provides information representative of the expected accumulated impairment along a candidate connection path leading up to, and including, the corresponding codec. By providing information pertaining to the expected accumulated impairment along each candidate connection path, the MSCs can determine an optimum sequence of codecs so as to minimize the overall connection impairment. | 06-24-2010 |
| 20100208585 | Method and node for providing a resource efficient connection in a communication network - A method, a network node and a program unit for controlling the establishment or modification of a connection in a communication network are disclosed. The connection is to be established or modified between nodes that are adapted to employ a coding scheme selected from a plurality of supported coding schemes having a different demand on a utilization of a network resource. In accordance with the invention an expected demand on a utilization of a network resource associated with employing the at least one of the supported coding schemes is determined, and a node controlling the connection selects the coding scheme to be employed such that the associated expected demand on the network resource utilization is minimized. | 08-19-2010 |
| 20100305943 | Method and node for the control of a connection in a communication network - A method, a control node and a program unit for controlling the establishment or modification of a connection for a subscriber having a subscription in a communication network are disclosed. The connection is to be established or modified between nodes that are adapted to employ a coding scheme selected from a plurality of supported coding schemes potentially affecting connection quality. In accordance with the invention a subscribed quality level indicating a target quality level for the subscriber associated with the subscription is determined, and a node controlling the connection checks the subscribed quality level when it selects a coding scheme to be employed for the connection. | 12-02-2010 |
| 20110051682 | Assignment and Handover in a Radio Communication Network - A network entity for a radio communication network includes a processing unit which causes a first resource and a second resource for a terrestrial interface of the radio network to be seized, where the first resource is distinct and different from the second resource. The entity includes a network interface through which a handover request or an assignment request message identifying the first and the second resource is sent. A network entity for a radio communication network includes a network interface which receives a handover request message or an assignment request message identifying a first resource and a second resource. The first resource is distinct and different from the second resource. The entity includes a processing unit that selects one of the first and second resources, allocates a radio channel associated with the handover or assignment, selects a bearer for a terrestrial interface and seizes resources for the interface. | 03-03-2011 |
