摘要:
A modified token bucket algorithm (100) in a rate shaper in a wireless communication network allows for the "borrowing" of tokens, creating the possibility of a token debt, or a token bucket with a negative Token Bucket Counter (TBC) value (108). In this modified token bucket algorithm (100), an incoming packet is passed along (114) so long as the TBC is positive (108), even if the packet must "borrow" some tokens, driving the TBC negative. Subsequent incoming packets are stalled until the TBC reaches a positive value. The token bucket refills at a known rate (104); accordingly, the duration of traffic stalling, when the TBC is negative, is known. During this time, the UE is forced into DRX mode (110), saving battery power by not monitoring DPCCH for traffic that has been halted. The DRX, or sleep, mode (110) may be invoked in several ways.
摘要:
Techniques for a mobile station to signal a request for a reduction in data transmission rate to a base station are disclosed. An example method for facilitating flow control in a wireless communication system includes monitoring resource use associated with a mobile station and, based upon the resource use, setting a congestion indicator in a header of at least one uplink traffic data packet. The uplink traffic data packet is then sent to a wireless base station, which detects the congestion indicator. In some embodiments, ECN bits in an IP header of the uplink traffic data packet are set. In other embodiments, ECN bits in an IP header of a downlink traffic data packet are set, to trigger the generation of a TCP header that indicates congestion in subsequent uplink packets.
摘要:
A method and apparatus for flow control in a wireless communication system is provided. The relay node receives from a base station flow control information for a Un interface between the relay node and the base station and determines whether to request to suspend transmission based on the flow control information. The relay node transmits a transmission suspend command to the base station when it is determined to request the transmission suspension.
摘要:
Systems and methods are disclosed for limiting text/multimedia message delivery based on destination point codes or other destination identifiers. A switching center (122) in a mobile network (100) monitors the amount of text/multimedia message traffic routed to destinations (126-129). If the message traffic routed to a destination (126-129) exceeds a threshold, then the switching center (122) generates a traffic message indicating traffic congestion for the destination (126-129), and transmits the traffic message to a message center (120). The message center (120) processes the traffic message to identify a destination point code for the destination (126-129). The message center (120) then adjusts delivery of text/multimedia messages toward the destination point code of the destination (126-129).
摘要:
A system and method for relay node flow control and/or congestion control in a wireless communications system are provided. A method for relay operation includes determining a buffer status of a buffer for data to be transmitted on a communications channel allocated from network resources controlled by a communications controller, computing buffer status information based on the buffer status, and transmitting the buffer status information to the communications controller.
摘要:
In a mobile communication environment, the data traffic is mapped to a number of bearers (52, 54). In a downlink direction, this is accomplished by filtering data packets on the basis of an identifier which is included into the data packets in response to packet inspection. In the uplink direction, a mirroring function is applied which detects incoming data packets, which are received on one of a plurality of bearers (52, 54) and have a first identifier, and outgoing data packets having a second identifier which is complementary to the first identifier. The outgoing data packets having the complementary second identifier are routed to the same bearer (52, 54) from which the incoming data packets are received.
摘要:
The present invention relates to a method for wireless communication in a network comprising a resource-restricted end device (ZBLD), and at least one router device (R5), wherein the method comprises the following steps: the end device (ZBLD) transmitting a data frame to be forwarded to a destination device in the network, - the router device (R5) receiving the data frame, the router device associating a delay to the data frame and scheduling transmission of the frame after this delay, in case the router device listening that the data frame has been forwarded by another router device, cancelling the scheduled transmission of the data frame. The invention also relates to a router device and a network therefor.
摘要:
Policy and charging control (PCC) is a framework within a Third or Fourth Generation (3G/4G) network that allows operators to authorize and enforce policy, Quality of Service (QoS), and charging control over communication sessions by mobile devices. PCC mechanism is used to determine the type QoS based on a request received from a User Equipment (UE) or network. PCC is one important element within System Architecture Evolution (SAE) architecture to allow the network to perform policy and charging control. A mechanism is provided so that PCC can allow packet flow optimization. Thereby, the network can detect Internet Protocol (IP) flows based on operator defined criteria and can perform policy and QoS control.
摘要:
According to an exemplary embodiment of the invention a network apparatus (200) for identifying a network resource in a network (100) may be provided. The network apparatus may comprise a receiving device (210) and an evaluating device (220). The receiving device (210) may be adapted for receiving a first network time value. Furthermore, the receiving device (210) may be adapted for receiving a second network time value. In addition, the evaluating device may be adapted for classifying the received first network time value and the received second network time value using at least a first class and a second class and wherein at least one class may indicate a network resource (250, 300, 350, 400).