Abstract:
The method and arrangement according to the present invention relates to of scheduling and coding in communication systems utilizing automatic repeat request (ARQ) and/or multihop scheduling and forwarding. According to the inventive method the receiving nodes selectively stores received information, also overheard information, as a priori information and feed back information about their respective stored a priori information to a sending node. The sending node forms composite data packets by jointly encoding and scheduling multiple data packets, which composite data packets are transmitted to receiving nodes. Upon receiving a composite data packet the receiving nodes uses their stored a priori information in the process of extracting data for themselves from the composite data packets.
Abstract:
The present invention relates to methods and arrangements in a relaying radio node and/or in a sending/receiving radio node, adapted for use in a relaying communication system. The relaying node is in bidirectional communication with at least a first and a second sending/receiving radio node, and the relaying radio node receives at least a first signal carrying at least first data and a second signal carrying at least second data. The relaying node generates (215) a reduced representation of at least the first and second signal, with a reduced information content as compared to the first and second data, by a joint non-linearly encoding operation, and transmits (220) the reduced representation to at least the first and the second communication node. The first and second sending/receiving node can extract data from the reduced representation by a non-linear decoding operation (225) using stored a priori information.
Abstract:
Network node (110) and method (600) in a network node (110), for admission control of an additional radio access bearer based on load of control channel elements on a control channel, assigned by a scheduler (700) comprised in the network node (110). The method (600) comprises assigning (601), by the scheduler (700), control channel elements on the control channel for already admitted radio access bearers. Further, a first and a second load of the control channel is computed (606, 607) based on the usage of assigned control channel elements subframes on which both downlink assignments and uplink grants are enabled, and on which downlink assignments are enabled, respectively. If any of the first or second loads exceeds a respective threshold value, the radio access bearer to be admitted is rejected (609A).
Abstract:
A signaling mechanism is used for DC-HSUPA. The mechanism is used by the UE and RAN to allow the UE to perform secondary carrier activation or deactivation. The secondary carrier activation deactivation performed by a UE in a manner will ensures that the UE and RAN have the same view of the current activation state. In accordance with one embodiment, the UE transmits a request for carrier activation or deactivation to RAN over an activated carrier and awaits a positive or negative acknowledgement from RAN, or sends the signaling retroactively as a notification that a carrier has been deactivated.
Abstract:
In one aspect, the present invention exploits the fact that the radio interface parameters used for multi-cell operation of a terminal are typically correlated. That is, in the uplink and/or downlink direction, the radio interface parameters used in the two or more cells supporting simultaneous multi-cell communication with the terminal may be related. Accordingly, in one or more embodiments presented herein, a terminal is provided one full set of parameters for the reception of data (downlink communication) and/or transmission of data (uplink communication) in one cell (the anchor serving cell), and some additional (delta) information that describes how the set of parameters for one or more other cells (the secondary serving cells) differs from the first cell. Correspondingly, the terminal is configured to derive the additional parameters needed for communicating in the one or more other cells, based on the full set of parameters and the delta information.