摘要:
The invention relates to method applicable in a packet-switched cellular network for voice connections, by which method a new dedicated channel can be established quickly using the existing dedicated channel of the voice connection. The establishment of the new dedicated channel utilizes the previous dedicated channel the existence of which is extended by sending to at least the receiving terminals post-speech packets according to the invention. The post-speech packets produce a 2-second delay, approximately, which is sufficient to establish a new dedicated channel between terminals participating in a session.
摘要:
The invention relates to a method for ensuring the adequacy of transmission capacity in a digital packet-switched cellular network where both voice sample packets and associated header fields are transmitted in real time in one and the same transmission channel. The invention also relates to a terminal employing the method. In the method, the contents of voice sample packets at the beginning of a speech spurt are partly replaced by packet header field data in situations where the combined bit count of voice sample data and packet header data exceeds the transmission capacity of the transmission channel.
摘要:
The invention relates to method applicable in a packet-switched cellular network for voice connections, by which method a new dedicated channel can be established quickly using the existing dedicated channel of the voice connection. The establishment of the new dedicated channel utilizes the previous dedicated channel the existence of which is extended by sending to at least the receiving terminals post-speech packets according to the invention. The post-speech packets produce a 2-second delay, approximately, which is sufficient to establish a new dedicated channel between terminals participating in a session.
摘要:
The invention relates to a protocol converter (14) and a method utilizing the converter, enabling a wireless connection (13) between a cellular network (11) and a terminal to apply a reduced RTP protocol according to the invention, instead of the RFC 1889 protocol, in order to save communications capacity on speech connections.
摘要:
The invention relates to a method and subscriber equipment of controlling transmission power in the transmitter. The subscriber equipment transmits bursts with different activity. The subscriber equipment forms an average activity of the transmitter, and controls transmission power of the bursts as a function of the average activity of the transmitter.
摘要:
A session set-up for communicating data via a data network is disclosed. First, a session establishment between a communication apparatus and a serving entity is requested for a service from the serving entity supporting the service. Then, when a requirement of a user connection for the service is determined, an association with a data network for the service is activated via a core network.
摘要:
A session set-up for communicating data via a data network is disclosed. First, a session establishment between a communication apparatus and a serving entity is requested for a service from the serving entity supporting the service. Then, when a requirement of a user connection for the service is determined, an association with a data network for the service is activated via a core network.
摘要:
A data transmission method transmits data to a group of receiving communication devices in a communication system comprising at least one cellular network. The method includes defining, by an application server situated beyond a cellular network, a group of receiving communication devices in the cellular network, the application server having no visibility to locations of receiving devices in the cellular network. The method also includes receiving, in a broadcast/multicast network entity configured to provide broadcast and multicast services in the cellular network, data to be transmitted from the application server to the group. The method also includes transmitting the data from the broadcast/multicast network entity to the group using broadcast and/or multicast transmission. Furthermore, a network entity in a cellular network and a communication system are provided configured to implement the method.
摘要:
A data transmission method transmits data to a group of receiving communication devices in a communication system comprising at least one cellular network. The method includes defining, by an application server situated beyond a cellular network, a group of receiving communication devices in the cellular network, the application server having no visibility to locations of receiving devices in the cellular network. The method also includes receiving, in a broadcast/multicast network entity configured to provide broadcast and multicast services in the cellular network, data to be transmitted from the application server to the group. The method also includes transmitting the data from the broadcast/multicast network entity to the group using broadcast and/or multicast transmission. Furthermore, a network entity in a cellular network and a communication system are provided configured to implement the method.
摘要:
An application server for controlling communication of packet data with a plurality of communication devices in a multicasting session is disclosed. The application server is configured for receiving information regarding a packetization parameter that is desired by at least one of the communication devices for reception of packet data, for assigning a different value for the packetization parameter for use in a multicasting session, and for controlling communication of packet data to the plurality of communication devices in the multicasting session based on the different packetization parameter.