Abstract: A method of allocating resources for transmitting content from a network element in a communications network to one or more mobile devices each in communication with the network element may include receiving, at the network element, characteristic information corresponding to each of the one or more mobile devices; and generating one or more adaptive guaranteed bit rate (AGBR) values at the network element corresponding to each of the one or more mobile devices, respectively. The AGBR values may be GBR values generated for each of the one or more mobile devices based on the corresponding characteristic information. A first scheduling algorithm may be executed at the network element based on the one or more AGBR values; and resources may be allocated to the one or more mobile devices based on an output of the scheduling algorithm.

Abstract: A method for control of congestion of traffic, being categorized according to a number of layers (L), in a network node, comprises a step of monitoring the amount (n(t)) of incoming flows to this node such that, based upon this amount (n(t)) of incoming flows and on a current number of accepted layers (l(t)), a next number of accepted layers (l(t+1)) for entry into said node is determined by consultation of an action table (T). In an enhanced embodiment the action table is adjusted based on the observed traffic during an observation period.

Abstract: The present invention relates to a new error control paradigm in a packet switched network that is particularly advantageous for multicast transmission. A transmission Status Vector TSV (T) is updated at the sender side whenever a new outgoing data packet (Dj?1) is scheduled for transmission. A corresponding Reception status Vector RSV (R) is similarly updated at the receive side whenever a new incoming and correctly indexed data packet (Dj?1) is validly received. As soon as a missing or corrupted data packet (Dj) is detected, the update of the RSV is suspended. A request is then sent to the sender to get the current Tsv's value, or a part thereof. The erroneous data packet is then recovered from the current TSV's value (Sk,m), from the lastly updated RSV's value (Sj-1), and from otherwise validly received data packets (Dj+1, . . . , Dk).

Abstract: The network unit includes a signaling unit and a video transmitting unit. The signaling unit is configured to receive a request from a decoding device requesting transmission of the video channel. The video transmitting unit is configured to transmit the video channel towards the decoding device, initially as a dedicated multimedia stream dedicatedly supplied to the decoding device and including an anchor frame as a first transmitted video frame, and further in time as a common multimedia stream commonly supplied to a plurality of decoding devices. The video transmitting unit is further configured to transmit the video channel within the dedicated multimedia stream having an earlier time frame with respect to transmission of the video channel within the common multimedia stream, and the video channel is to be initially played at an averagely slower motion speed than the nominal motion speed that the common multimedia stream is to be played.

Abstract: The present invention relates to a network unit adapted to transmit a video channel (Chx) to be played at a nominal motion speed (?), which network unit comprising: a signaling means (104) adapted to receive a request (Join_Chx) from a decoding device (200) whereby transmission of the video channel is requested, a video transmitting means (112) adapted thereupon to transmit the video channel towards the decoding device, initially as a dedicated multimedia stream (UC_Chx) dedicatedly supplied to the decoding device and comprising an independent video frame (I) as first transmitted video frame, and further in time as a common multimedia stream (MC_Chx) commonly supplied to a plurality of decoding devices (200, 220).

Abstract: An access node (101) according to the invention is able to multicast a plurality of video channels to subscribers, and to cache N of these video channels. To select the N video channels for caching, the access node (101) determines for each video channel a weighted sum of the zapping rate rk to channel k and the channel popularity ?k. The N video channels that have the highest values for this weighted sum are cached by the access node (101).

Abstract: The invention concerns a data packet retransmission arrangement having a retransmission buffer, a counter, a forward error correction device and control logic. The retransmission buffer stores recently transmitted data packets. The counter keeps track of the number of retransmission requests received for a data packet (211). If this number is below a first integer value K, the data packet is retransmitted (212, 213). If this number is equal to or above the first integer value K, the forward error correction device calculates N forward error correction packets on L-1 recently transmitted data packets plus the data packet to be retransmitted (211), N being a second integer value equal to or larger than zero, and L being a third integer value equal to or larger than 1. In the latter case, the data packet is retransmitted together with the N forward error correction packets (214).

Abstract: Network devices (30) receiving first packets from first devices (10) and in response transmitting second packets to second devices (20), and receiving third packets from the second devices (20) and in response transmitting fourth packets to the first devices (10), get manipulation means (40) for manipulating information at layers higher than internet protocol layers of headers of packets for improving transport efficiencies between the first and second devices (10,20). The higher layer may comprise a transport control protocol layer-4 to allow the network devices (30) to take over acknowledging functions of the second devices (20) and to take over re-transmission functions of the first devices (10) and to support the second devices (20) through offering additional buffer space and to support the first devices (10) through offering extended/advanced stream management.

Abstract: The invention concerns a method to set up a voice over Internet Protocol communication between a mobile terminal (MT) and a second device (T2) whereby the voice over Internet Protocol communication comprises an air interface between the mobile terminal (MT) and a base station (BS) which is coupled via an access network and an Internet Protocol network to the second device (T2). The method comprises a step of determining, according to predefined rules and conditions, during call set-up appropriate values for a plurality of parameters which are characterizing the voice over Internet Protocol communication in order to realize a desired trade-off between a predefined user quality of said voice over Internet Protocol communication and a predefined bandwidth efficiency.