Abstract: A system is described in which a default MME (9A) receives a NAS message (S501, S505) from a mobile device (3D); sends a rerouting request (S509) to a base station (5) serving the mobile device (3D) and includes information identifying a group of dedicated MMEs (9D) to which the NAS message should be rerouted. If none of the dedicated MMEs (9D) is available, then the default MME (9A) receives a message from the base station (5), the message rerouting the NAS message to the default MME (9A), instead of a dedicated MME (9D). The default MME (9A) either proceeds (S515a) to serving the mobile device (3D) or the default MME (9A) rejects (S515b) the NAS message.

Abstract: An example technique may include measuring a wireless link between a user device and an access point to obtain a first set of measurement values, detecting that the wireless link is temporarily blocked during the measuring, modifying, based on the wireless link being temporarily blocked, the first set of measurement values to obtain a second set of measurement values, and sending, to a network device, a report indicating the second set of measurement values.

Abstract: Various communication systems may benefit from having appropriate information regarding communication resources. For example, systems implementing fifth generation multi-connectivity may be able to provide efficient radio scheduling through distribution of L2 buffer status information. A method can include preparing, by a multi-connectivity aggregating entity, an aggregated buffer status regarding a plurality of legs of a split radio access flow. The method can also include distributing the aggregated buffer status to a plurality of schedulers of the legs.

Abstract: A method for managing flows in a network with a plurality of forwarding elements routing the flows between network entities of a network or network domain includes marking flows between network entities with congestion information by at least one of the forwarding elements such that the highest congestion level prevailing on the respective flow path is indicated, identifying locations of one or more possible and/or present bottlenecks and/or congestions in the network based on the congestion information, and performing one or more actions to avoid, mitigate, and/or resolve the identified possible and/or present bottlenecks and/or congestions.

Abstract: An example technique may include measuring a wireless link between a user device and an access point to obtain a first set of measurement values, detecting that the wireless link is temporarily blocked during the measuring, modifying, based on the wireless link being temporarily blocked, the first set of measurement values to obtain a second set of measurement values, and sending, to a network device, a report indicating the second set of measurement values.

Abstract: A method for dual connectivity (DC) performed by a user equipment (UE), wherein said the UE is in connected mode and is connected to a master evolved node B (MeNB) and connectable to a secondary evolved node B (SeNB), includes informing a communication system entity about regarding DC support of said the UE, and when the UE supports DC, receiving a connection reconfiguration message to change or split bearers from the MeNB to the SeNB.

Abstract: A method for providing a random access channel in a, preferably OFDMA-based, wireless network for communication includes: a) defining at least one radio frame according to a frame structure of the wireless network for data transmission; b) providing at least one random access channel in the radio frame by at least one base station of the wireless network for random data transmission of at least one user equipment; c) accessing the at least one random access channel by the at least one user equipment for random data transmission; d) determining network information of the, preferably OFDMA-based, wireless network including network user equipment related information of the at least one user equipment; and e) assigning the at least one random access channel according to the determined network information for random data transmission. A corresponding system is also described.

Abstract: A clustered femtocell network including a plurality of femtocell access points that are connected via a logical interface to a mobile network in order to provide user equipments with radio access to the mobile network, wherein the mobile network includes a Mobility Management Function—MMF—, is characterized in that a logical function—Proxy Mobility Management Function P-MMF—is provided that localizes mobility management of the user equipments in the clustered femtocell network, wherein the P-MMF intercepts and interprets mobility-related signaling between the MMF and the femtocell access points in such a way that it emulates towards the femtocell access points the behavior of the mobile network's MMF and towards the mobile network's MMF the behavior of the femtocell access points. Furthermore, a method for operating a clustered femtocell network is disclosed.

Abstract: A communication network, wherein the network includes a plurality of communication elements that function as transmitters and/or receivers, in particular base stations and operating nodes being associated to at least one of the base stations, wherein the communication between the transmitters and the receivers is performed by way of generating and transmitting signals based on a multi-carrier modulation with a number of N subcarriers around a carrier frequency fc, is characterized in that the communication elements are configured to perform, upon receiving a transmitted signal, a sub-sampling of the received signal, wherein only a predetermined number of the inner-most subcarriers around the carrier frequency fc are employed for data reconstruction. Furthermore, a respective method for operating a communication network is described.

Abstract: A method for performing connection management in a mobile communication network, wherein the network comprises one or more base stations and at least one user terminal being connected to any of said one or more base stations is characterized in that the user terminal provides information which informs the base station the user terminal is connected to that no data transmission from the user terminal to said base station is expected within a certain time interval Texp.

Abstract: A method for operating a WiMAX femtocell base station, wherein the femtocell base station has an active operational mode, in which the radio interface subsystem of the femtocell base station is fully power supplied, is characterized in that a power saving mode with reduced radio interface activity is provided, wherein the femtocell base station is enabled to transit between the active operation mode and the power saving mode. Furthermore, a corresponding femtocell base station for deployment in a WiMAX network is disclosed.

Abstract: A method for operating a base station of a mobile wireless system, in particular of a mobile communications network, wherein the base station is configured to operate in different operation states, wherein the operation states at least include an active operational mode, in which the radio interface subsystem of the base station is fully activated, and a low-duty operational mode with reduced radio transmission activity, is characterized in that in the low-duty operational mode the base station implements a window mechanism including availability intervals during which radio transmissions are allowed and unavailability intervals in which no radio transmissions are allowed. Furthermore, a corresponding base station for deployment in a mobile wireless system is disclosed.

Abstract: A method for operating a WiMAX femtocell base station, wherein the femtocell base station has an active operational mode, in which the radio interface subsystem of the femtocell base station is fully power supplied, is characterized in that a power saving mode with reduced radio interface activity is provided, wherein the femtocell base station is enabled to transit between the active operation mode and the power saving mode. Furthermore, a corresponding femtocell base station for deployment in a WiMAX network is disclosed.

Abstract: A method for operating a WiMAX femtocell base station, wherein the femtocell base station has an active operational mode, in which the radio interface subsystem of the femtocell base station is fully power supplied, is characterized in that a power saving mode with reduced radio interface activity is provided, wherein the femtocell base station is enabled to transit between the active operation mode and the power saving mode. Furthermore, a corresponding femtocell base station for deployment in a WiMAX network is disclosed.

Abstract: A method for operating a base station of a mobile wireless system, in particular of a mobile communications network, wherein the base station is configured to operate in different operation states, wherein the operation states at least include an active operational mode, in which the radio interface subsystem of the base station is fully activated, and a low-duty operational mode with reduced radio transmission activity, is characterized in that in the low-duty operational mode the base station implements a window mechanism including availability intervals during which radio transmissions are allowed and unavailability intervals in which no radio transmissions are allowed. Furthermore, a corresponding base station for deployment in a mobile wireless system is disclosed.

Abstract: A method for providing a random access channel in a, preferably OFDMA-based, wireless network for communication includes: a) defining at least one radio frame according to a frame structure of the wireless network for data transmission; b) providing at least one random access channel in the radio frame by at least one base station of the wireless network for random data transmission of at least one user equipment; c) accessing the at least one random access channel by the at least one user equipment for random data transmission; d) determining network information of the, preferably OFDMA-based, wireless network including network user equipment related information of the at least one user equipment; and e) assigning the at least one random access channel according to the determined network information for random data transmission. A corresponding system is also described.

Abstract: A method for operating a base station of a mobile wireless system, in particular of a mobile communications network, wherein the base station is configured to operate in different operation states, wherein the operation states at least include an active operational mode, in which the radio interface subsystem of the base station is fully activated, and a low-duty operational mode with reduced radio transmission activity, is characterized in that in the low-duty operational mode the base station implements a window mechanism including availability intervals during which radio transmissions are allowed and unavailability intervals in which no radio transmissions are allowed. Furthermore, a corresponding base station for deployment in a mobile wireless system is disclosed.

Abstract: A method and system for switching a base station from an inactive operational mode to a more active operational mode in a hierarchically structured mobile communication network preferably a WiMAX or LTE network, with at least one small cell base station and at least one macro cell base station in a radio access network includes: a) determining a current operational mode of the at least one small cell base station; b) switching the small cell base station from an inactive operational mode to a more active operational mode depending on the determined current operational mode; c) checking whether at least one predefined criteria in addition to a parameter indicating the current operational mode of the small cell base station is fulfilled; and d) depending on the checking result of step c) transmitting a switching signal from a higher level network entity to the small cell base station.

Abstract: Method for operating a network or allowing a simplified use of an M2M (Machine to Machine) node or M2M nodes for providing Machine-Type Communication (MTC), wherein at least one M2M node providing and/or using an M2M service is assigned to a cellular network and will be authorized for communication therewith for providing MTC. At least one M2M node will be associated with at least one master terminal that owns a unique master terminal ID (Identifier), which uniquely identifies the master terminal within the cellular network, and a state of authentication of the M2M node or M2M nodes will be initialized, based on authentication data of the master terminal, so that the M2M node or nodes can be addressed using the master terminal ID and can directly communicate with the cellular network on the basis of the initialized state of authentication. A network for carrying out the method is also described.

Abstract: A communication network, wherein the network includes a plurality of communication elements that function as transmitters and/or receivers, in particular base stations and operating nodes being associated to at least one of the base stations, wherein the communication between the transmitters and the receivers is performed by way of generating and transmitting signals based on a multi-carrier modulation with a number of N subcarriers around a carrier frequency fc, is characterized in that the communication elements are configured to perform, upon receiving a transmitted signal, a sub-sampling of the received signal, wherein only a predetermined number of the inner-most subcarriers around the carrier frequency fc are employed for data reconstruction. Furthermore, a respective method for operating a communication network is described.