Abstract: Various methods and apparatuses are provided to address the need for improved multi-carrier communication. In one apparatus, a radio access network (RAN) (402) includes multiple network nodes (403, 406) operative to transmit, via multiple carriers (411-412), packet data to a user element (UE) (401) using a protocol stack. The protocol stack includes a radio link control (RLC) layer split into an upper RLC processing layer and multiple lower RLC processing layers. Each lower RLC processing layer is associated with one carrier of the multiple carriers and each lower RLC processing layer supports packet data transmission via its associated carrier. The upper RLC processing layer supports packet data transmission via the multiple carriers.

Abstract: In one example embodiment, a method for reducing an effect of an interference signal on data being transmitted over a communication channel is disclosed. The method includes determining, by a processor, a code vector representing data based on an information vector and an interference vector, the information vector representing the data, the interference vector representing the interference signal. The method further includes generating, by the processor, a transmit vector for transmitting the data based on the code vector and the interference vector.

Abstract: In one example embodiment, a method for reducing an effect of an interference signal on data being transmitted over a communication channel includes determining, by the processor, a code word based on a base information vector and an auxiliary vector, the base information vector including base information bits representing the data to be transmitted over the communication channel, the auxiliary vector corresponding to an interference vector representing the interference signal. The method further includes generating, by the processor, a transmit vector for transmission based on the determined code word and the interference vector.

Abstract: Various methods and devices are provided to address the need for interference mitigation in heterogeneous wireless networks. In one method, a small cell network node provides (301) diversity reception for uplink communications of user equipment (UE) served by a macro cell network node. The small cell network node and the macro cell network node coordinate (302) the scheduling of uplink resource blocks so that the UE and user equipment served by the small cell network node are not scheduled during the same uplink resource blocks.

Abstract: In one embodiment, the method includes determining, at a network element, a first filter component based on reference sequences for user equipments in a first set. The method further includes determining a second filter component. The second component is based on a plurality of received signals and has estimated contributions to the plurality of received signals by the user equipments in the first set removed. The plurality of received signals are associated with a plurality of antennas. The method further includes filtering a selected received signal based on the first and second filter components to obtain an estimated signal for a selected user equipment.

Abstract: In one example embodiment, a method for reducing an effect of an interference signal on data being transmitted over a communication channel includes determining, by the processor, a code word based on a base information vector and an auxiliary vector, the base information vector including base information bits representing the data to be transmitted over the communication channel, the auxiliary vector corresponding to an interference vector representing the interference signal. The method further includes generating, by the processor, a transmit vector for transmission based on the determined code word and the interference vector.

Abstract: Various exemplary embodiments relate to a method and related network node including one or more of the following: receiving, at the node, a network update message; determining whether the network update message should be propagated to other nodes; if the network update message should be propagated to other nodes, forwarding the network update message to at least one other node; and if the network update message should not be propagated to other nodes, refraining from forwarding the network update message to any other node. Various further embodiments relate to a method and related network node including one or more of the following: determining a first time period for the network update message; setting the first time period as a delay time; waiting for the delay time; and after the delay time has elapsed, computing new routing information based on the network update message.

Abstract: In one example embodiment, a method for reducing an effect of an interference signal on data being transmitted over a communication channel is disclosed. The method includes determining, by a processor, a code vector representing data based on an information vector and an interference vector, the information vector representing the data, the interference vector representing the interference signal. The method further includes generating, by the processor, a transmit vector for transmitting the data based on the code vector and the interference vector.

Abstract: In one example embodiment, a method for reducing an effect of an interference signal on data being transmitted over a communication channel includes determining, by a processor, a code word based on at least an information vector and an interference vector, the information vector representing the data, the interference vector representing the interference signal. The method further includes determining, by the processor, a code vector based on the determined code word. The method further includes generating, by the processor, a transmit vector based on the code vector and the interference vector.

Abstract: The present invention provides a method for content rate selection. The method includes selecting a content rate for play out of at least one frame transmitted from a media server to a media client via a wireless access network. Selection of the content rate is performed based on a statistical representation of a bandwidth available for transmission of frames.

Abstract: The present invention provides a method for content rate selection. The method includes selecting a content rate for play out of at least one frame transmitted from a media server to a media client via a wireless access network. Selection of the content rate is performed based on a statistical representation of a bandwidth available for transmission of frames.

Abstract: Methods for proxy-driven content rate selection for streaming media servers are provided. In one method, one or more maximum transmission rate parameters from a network controller are stored at a proxy server in response to a receiver report message from the client. A target rate for the media session is generated based on the stored maximum transmission rate parameters, and the target rate is transmitted to a media server in a proxy-to-server feedback message. The media server selects the content rate from among a plurality of supported content rates in response to the proxy-to-server feedback message from the proxy server, and streams streaming multimedia frames to the client at the selected content rate.

Abstract: Various exemplary embodiments relate to a method and related network node including one or more of the following: receiving, at the node, a network update message; determining whether the network update message should be propagated to other nodes; if the network update message should be propagated to other nodes, forwarding the network update message to at least one other node; and if the network update message should not be propagated to other nodes, refraining from forwarding the network update message to any other node. Various further embodiments relate to a method and related network node including one or more of the following: determining a first time period for the network update message; setting the first time period as a delay time; waiting for the delay time; and after the delay time has elapsed, computing new routing information based on the network update message.

Abstract: Various methods and devices are provided to address the need for improved inter-carrier load balancing. In one method, network equipment determines (101) an achievable rate for a plurality of wireless devices on each carrier of a plurality of carriers. Inter-carrier load balancing is performed (102) by the network equipment by assigning a carrier of the plurality of carriers to each wireless device using the determined achievable rate of that wireless device on each carrier.

Abstract: Various methods and devices are provided to address the need for improved cooperation-based signal processing. In a first method, network equipment determines (801) a set of dominant interferers for a wireless transmission and requests (802) user-plane data corresponding to each dominant interferer in the set of dominant interferers. The network equipment then processes (803) a received signal corresponding to the wireless transmission to extract the information transmitted. This processing uses at least some user-plane data corresponding to at least one dominant interferer in the set of dominant interferers.

Abstract: Systems and methods are disclosed for reusing resources of a wireless network. Radio communications resources of the wireless network are divided into partitions. A system described herein allows access to resources in the first partition by a first set of users for primary communications on the first partition, and allows access to resources in the first partition by a second set of users for secondary communications on the first partition. The control system also allows access to resources in the second partition by the second set of users for primary communications on the second partition, and allows access to resources in the second partition by the first set of users for secondary communications on the second partition.

Abstract: In a method for dynamically setting a content rate of a multimedia session for a client in a network, a proxy server receives a channel condition feedback message from a network controller and determines whether a receiver report message has been received from the client since a most recent previous channel condition feedback message. The channel condition feedback message includes current channel condition information for the network. The proxy server sends one of an extended feedback report message and a short feedback report message to a media server based on the determining step. The short feedback report message includes at least a maximum transmission rate parameter for the multimedia session. The extended feedback report message includes at least information contained in the receiver report message. The extended feedback report message may, in addition, include the maximum transmission rate parameter for the multimedia session.

Abstract: A method for efficient propagation of link state advertisements in densely interconnected OSPF networks is disclosed for reducing the number of duplicate LSAs propagated during a flooding event. The efficient propagation method includes calculating an LSA propagation subgraph which is used by a node which receives an LSA to determine which links to propagate the LSA upon. This allows a significant reduction in the LSAs which traverse the network during a flooding event. The reduction in LSAs is particularly useful for reducing network convergence times associated with flooding events. In addition, a system is disclosed for performing the method in both a centralized and dispersed manner.

Abstract: Various exemplary embodiments relate to a method and related network node including one or more of the following: receiving, at the node, an indication that a current network state has changed to a new network state from an old network state; determining whether the node has access to pre-computed routing information associated with the new network state; if the node has access to pre-computed routing information associated with the new network state, using the pre-computed routing information to route future network traffic; and if the node does not have access to pre-computed routing information associated with the new network state, computing new routing information and using the new routing information to route future network traffic.

Abstract: Various methods and network nodes (e.g., base stations or base transceiver nodes) are provided to address the need for enhanced uplink performance. In a first method, a virtual soft handoff network node receives (501), from a serving network node, information related to uplink communications of user equipment (UE) served by the serving network node, wherein a soft handoff is not established between the virtual soft handoff network node and the UE. The virtual soft handoff network node receives (502) uplink communications between the UE and the serving network node and processes (503) the uplink communications to determine decoded uplink data from the UE. In a second method, a serving network node sends (401) to a virtual soft handoff network node, information related to uplink communications of user equipment (UE), the UE being served by the serving network node but not in soft handoff with the virtual soft handoff network node.