摘要:
A message generating arrangement determines whether a first communication terminal of a communication system can participate, by means of packet-switching network elements of the communication system, in a communication link in which a second communication terminal of the communication system is participating by means of circuit-switching network elements of the communication system, and generates a message on the basis of the result of the determination.
摘要:
Methods and apparatuses for allocating permanent dedicated preambles for connection with a femtocell. Various embodiments include selecting one or more mobile communication devices to be a main device, assigning the permanent dedicated preambles to each of the one or more main devices, transmitting the assigned permanent dedicated preambles to the one or more main devices, storing a relation of the assigned permanent dedicated preambles in a memory of the one or more main devices, and explicitly releasing one or more of the assigned permanent dedicated preambles when a release condition is met.
摘要:
Methods and apparatus that enable a wireless network to detect and manage impending congestion events caused by a plurality of mobile devices attempting to access the network in a brief space of time. In one embodiment, the network comprises a 3g (UMTS) cellular network, and includes a congestion management and avoidance entity that preemptively triggers a collision mode upon detecting an impending congestion event. This mode advantageously reduces processing burden on the base station by causing the mobile devices (UEs) to halt current access attempts, and invoke a multiple access scheme (e.g., wait a random amount of time before attempting further access attempts). The comparatively early detection and avoidance of collisions reduces the mobile device's power consumption, while addressing congestion events early in the wireless communication process so as to maintain optimal network conditions.
摘要:
Methods and apparatus that enable a wireless network to detect and manage impending congestion events caused by a plurality of mobile devices attempting to access the network in a brief space of time. In one embodiment, the network comprises a 3g (UMTS) cellular network, and includes a congestion management and avoidance entity that preemptively triggers a collision mode upon detecting an impending congestion event. This mode advantageously reduces processing burden on the base station by causing the mobile devices (UEs) to halt current access attempts, and invoke a multiple access scheme (e.g., wait a random amount of time before attempting further access attempts). The comparatively early detection and avoidance of collisions reduces the mobile device's power consumption, while addressing congestion events early in the wireless communication process so as to maintain optimal network conditions.
摘要:
According to one embodiment, a communication device is described comprising a communication circuit configured to communicate in a first communication mode using a first frequency range and a receiver configured to receive a switching delay information message indicating a time interval by which start of communication in a second communication mode using a second frequency range should be delayed after a switch from the first communication mode to the second communication mode. The communication circuit is configured to communicate in the second communication mode when the time interval has elapsed since the start of the switching from the first communication mode to the second communication mode.
摘要:
Methods and apparatus enabling a wireless network to optimize paging channel operation, based on mobile device context information. In one embodiment, the wireless network is a cellular network (e.g., LTE-Advanced), and both base stations and cellular user devices dynamically exchange and maintain a paging agreement. The paging agreement limits the paging channel operation, thereby minimizing unnecessary scanning and usage of irrelevant radio resources. Such paging mechanisms are limited to the air interface between the base station and the mobile device, and are compatible with existing legacy devices and network entities. Networks with appropriately enabled user devices may improve their resource utilization. Base stations may advantageously reclaim freed-up cellular resources to support other services.
摘要:
A method is provided for handover of a communication of a mobile communication device between a first radio access network and a second radio access network. The method comprises storing, by at least one of the communication device and an element of the first radio access network, a context of the communication device in the first radio access network, the context being useable to transfer the communication back to the first radio access network after a transferring to the second radio access network; and transferring the communication to the second radio access network.
摘要:
A message generating arrangement determines whether a first communication terminal of a communication system can participate, by means of packet-switching network elements of the communication system, in a communication link in which a second communication terminal of the communication system is participating by means of circuit-switching network elements of the communication system, and generates a message on the basis of the result of the determination.
摘要:
A transmission channel, for the transmission of messages from a mobile terminal to a base station, is selected after a terminal sends a send authorization request signal, for a particular transmission channel, to the base station and the base station sends a reply signal with a first decision value. The terminal is thus signaled whether the terminal is authorized to send a message on the requested transmission channel. On sending a first negative decision value, the base station sends a second positive decision value with the reply signal, when the terminal is authorized to send a message on another transmission channel. On detection of a first negative decision value, the terminal analyzes the reply signal further for whether a second positive decision value is contained therein and which other transmission channels are available and hence sends the message on one of the available transmission channels.
摘要:
Apparatus and method for forming system information medium access control protocol messages, wherein system information data packets are received from a logical channel, with at least some of the packets having associated prioritization information which is used to indicate the priority of the respective packets, and the system information medium access control protocol messages are formed using at least some of the packets from the logical channel taking into account the prioritization information. Also, apparatus and method for ascertaining system information from system information medium access control protocol messages, wherein a first system information medium access control protocol message is received from a transport channel which contains a statement indicating how a second system information medium access control protocol message is transmitted, the statement is ascertained from the first system information medium access control protocol message, and the second system information medium access control protocol message is received taking into account the ascertained statement.