摘要:
The invention relates to a method of routing traffic from a sender to a receiver in a communication network said method comprising for at least two possible routes between the sender and the receiver the step of calculating at least one metric for at least one link in each route, characterized by the steps of calculating a sensitivity parameter for said at least one metric and taking said sensitivity parameter into account when selecting a route. The sensitivity parameter may be based on a derivative of said metric with respect to a variable on which said metric depends. The method may also comprise the step of calculating a reliability parameter for said at least one metric and taking said reliability parameter into account when selecting a route.
摘要:
A communication system is provided which is arranged for accessing a network by a group of first access paths and a group of second access paths. The first and second access paths have a different access technology. An access path monitor is provided for obtaining status information related to the access paths in accordance with the monitoring procedure. An access controller is provided for selecting an access path for a communication session in accordance with a selection procedure and in dependence on the status information. A modifier is provided for modifying one or both of the monitoring procedure and the selection procedure in accordance with a modification procedure and in dependence on decision information.
摘要:
A communication system is provided which is arranged for accessing a network by a group of first access paths and a group of second access paths. The first and second access paths have a different access technology. An access path monitor is provided for obtaining status information related to the access paths in accordance with the monitoring procedure. An access controller is provided for selecting an access path for a communication session in accordance with a selection procedure and in dependence on the status information. A modifier is provided for modifying one or both of the monitoring procedure and the selection procedure in accordance with a modification procedure and in dependence on decision information.
摘要:
The present invention relates to communications. More especially it relates to multiple access communications over diverse access technologies. Particularly it relates to multiple radio access technologies and heterogeneous networks and admission control for multi-technology access, the admission control serving one or more communication sessions over more than one access technology at the same time.
摘要:
The invention relates to a method of routing traffic from a sender to a receiver in a communication network said method comprising for at least two possible routes between the sender and the receiver the step of calculating at least one metric for at least one link in each route, characterized by the steps of calculating a sensitivity parameter for said at least one metric and taking said sensitivity parameter into account when selecting a route. The sensitivity parameter may be based on a derivative of said metric with respect to a variable on which said metric depends. The method may also comprise the step of calculating a reliability parameter for said at least one metric and taking said reliability parameter into account when selecting a route.
摘要:
A network node (110) and a method therein for managing radio, resources are disclosed. The radio resources are dedicated for beacon (121, 122) signaling, fey a first device; (131) and a second device (132), in conjunction with device-to-device, “D2D”, discovery. The first device: (131) is stationary and the second device (132) is non-stationary. The network node (110) selects (202) a first and a second set of radio resources out of the radio resources. The first arid second sets are dedicated for beacon signaling by the first device (131) and the second device (132), respectively. The first set of radio resources Is non-overlapping with the second set of radio resources. Then the network node (110) schedules (203) a specific radio resource of the first set of radio resources to the first device (131). Next, the network node (110) sends (204) information about the scheduled specific radio resource to the first device (131). The network node (110) further sends (205) information about the second set of radio resources to the second device (132). In this manner, the second device (132) restricts Us radio resources usable for beacon signaling to the second set of radio resources.
摘要:
A technique is provided for use by a Multi-Radio Management Resource (MRRM) component of a multi-radio wireless communication system for controlling the handover of a mobile terminal between different radio access technologies (RAT). In one example, all suitable RATs having coverage areas currently covering the location of a mobile terminal are identified. The performance gain that might be achieved via a handover to one of the other RATs is then determined by the MRRM based on various performance gain factors. Handover costs that will be incurred as a result of the handover are also explicitly calculated. Then, a cost-adjusted gain is determined by the MRRM based on the performance gain and the handover costs. A handover is only triggered by the MRRM if the cost-adjusted gain exceeds a minimum threshold. The speed and trajectory of the mobile terminal may also be considered.
摘要:
A technique is provided for use by a Multi-Radio Management Resource (MRRM) component of a multi-radio wireless communication system for controlling the handover of a mobile terminal between different radio access technologies (RAT). In one example, all suitable RATs having coverage areas currently covering the location of a mobile terminal are identified. The performance gain that might be achieved via a handover to one of the other RATs is then determined by the MRRM based on various performance gain factors. Handover costs that will be incurred as a result of the handover are also explicitly calculated. Then, a cost-adjusted gain is determined by the MRRM based on the performance gain and the handover costs. A handover is only triggered by the MRRM if the cost-adjusted gain exceeds a minimum threshold. The speed and trajectory of the mobile terminal may also be considered.
摘要:
A data unit processing entity (4) is described, which has a decision part (41) for setting a forwarding address FA on the basis of an identifying address in a received data unit, by referring to decision data stored in a decision data memory (42). A management part (43) is provided, which is arranged to provide a network control function (51) with access to the decision data in the decision data memory (42), in order to change said decision data, independently of any access given to mobile nodes.
摘要:
A radio communication system and a method for assigning a short-lived Cell Radio Network Temporary Identifier, “CRNTI”, to a first user equipment performing random access to a radio network node are provided. The radio communication system registers the first user equipment as connected to the radio network node. A message for synchronizing the radio network node and the first user equipment with respect to the first time period is transferred. After the first time period has elapsed, the radio communication system maintains the first user equipment connected to the radio network node, and allows the short-lived CRNTI to be assigned to a second user equipment.