Abstract: The present invention addresses a method, including configuring a remote device (UE) for measurements of at least one carrier in a first frequency band which is different from a second frequency band which is licensed used for communication by said remote device, receiving a measurement report from said remote device, and deciding on the usability of the at least one measured carrier in said first frequency band for communication by said remote device. Also, a method is proposed, including measuring at least one carrier in a first frequency band which is different from a second frequency band which is licensed used for communication by a remote device, and sending, to a network transceiver device, a measurement report of the measurements. Likewise, corresponding computer program products as well as correspondingly configured devices are addressed.

Abstract: There are provided measures for common control deactivation in carrier aggregation, said measures exemplarily including a configuration of a secondary carrier for carrier aggregation with a primary carrier of a terminal, including a deactivation of a common control for the secondary carrier, an indication of the deactivation of the common control for the secondary carrier via the primary carrier, and a signaling of control information, substituting control information of the deactivated common control, for facilitating selection of or operation on the secondary carrier without the deactivated common control via the primary carrier from a base station to the terminal. Said measures may exemplarily be applied for common control deactivation in carrier aggregation in heterogeneous network environments based on LTE, LTE-Advanced, HSPA and/or UMTS radio access systems.

Abstract: The exemplary embodiments of the invention provide at least a method and apparatus to perform operations including transmitting an indication of a default configuration for a sub-frame having a downlink transmission portion and an uplink transmission portion; transmitting an indication of a preferred configuration for said sub-frame; and scheduling at least one of transmissions to and transmissions from a communication device according to said preferred sub-frame configuration.

Abstract: The disclosure relates to use of carriers for aggregation in a wireless system. A set of carriers available for use in carrier aggregation is first determined. It is then determined if at least one carrier of the set of carriers can become unavailable for use by a communication device. An indication of a configuration type of the at least one carrier is sent to the communication device, the configuration type being indicative of different behavior during a period. The at least one carrier is maintained in the set of carriers during said period. The communication device receives the indication. If a change in the availability state of the at least one carrier is determined, the communication is operated, device in relation to the at least one carrier, according to the availability state and the received indication during said period.

Abstract: Synchronization in a communication system A method and apparatus for a communication system is disclosed. In the system communications occur via a multiple of nodes each providing a stratum for synchronization. It is determined that the stratum of a node is not included in a predefined set of stratums. In response to said determination synchronizing with the node is provided differently from nodes with stratums without taking the order of the stratum into account. Information about the status can be communicated between nodes.

Abstract: There is provided a control entity for a communication network, a base station including such a control entity and a user equipment for communication with such a base station. The control entity includes a controller for providing a downlink control signal (e.g. a downlink assignment) scheduling a downlink data resource in a first time slot wherein the controller is configured for providing the downlink control signal over a downlink control resource in an earlier time slot which is chronologically earlier than the first time slot.

Abstract: A method and apparatus can be configured to determine an uplink-downlink configuration. The method also transmits an indication of the uplink-downlink configuration. The transmitting the indication of the uplink-downlink configuration includes using physical layer signaling. The transmitting the indication of the uplink-downlink configuration also includes reusing an existing physical layer channel.

Abstract: The present invention relates to methods, apparatuses, a system, and a computer program product for synchronizing to an uncoordinated access network. A new access device added to the access network is temporarily set into an over-the-air discover state and identification signals are broadcast from the new access device. Operating access devices are set into an discovery state in response to a detection of the identification signal, wherein their inter access device over-the-air transmission is stopped during the discovery state and an identity of the new access device is searched.

Abstract: A spectral arrangement for radio resources is usable for transmitting radio data within a telecommunication network. The spectral arrangement includes (a) a first radio resource usable for transmitting radio data in a first data flow direction, wherein the first data flow direction is either an uplink direction or a downlink direction, (b) a second radio resource usable for transmitting radio data in a second data flow direction, wherein the second data flow direction is opposite to the first data flow direction, (c) a third radio resource usable for transmitting radio data in the second data flow direction and (d) a guard band, which on the frequency scale is located between the first radio resource and the second radio resource such that the first radio resource is separated from the second radio resource Between the second radio resource and the third radio resource there is provided no guard band.

Abstract: According to one general aspect, an apparatus may include a processor. In various embodiments, the processor may be configured to select either an uplink sub-frame or a special sub-frame to employ for base station-to-base station (B2B) communication in some embodiments, the processor may be configured to cause at least one user equipment (UE), associated with the apparatus, to either refrain from transmitting or substantially receiving during the selected sub-frame In various embodiments, the processor may be configured to transmit data, from the apparatus to a receiving BS, during at least a portion of the selected sub-frame.

Abstract: The present invention addresses a method, including configuring a remote device (UE) for measurements of at least one carrier in a first frequency band which is different from a second frequency band which is licensed used for communication by said remote device, receiving a measurement report from said remote device, and deciding on the usability of the at least one measured carrier in said first frequency band for communication by said remote device. Also, a method is proposed, including measuring at least one carrier in a first frequency band which is different from a second frequency band which is licensed used for communication by a remote device, and sending, to a network transceiver device, a measurement report of the measurements.

Abstract: There is provided a control entity for a communication network, a base station including such a control entity and a user equipment for communication with such a base station. The control entity includes a controller for providing a downlink control signal (e.g. a downlink assignment) scheduling a downlink data resource in a first time slot wherein the controller is configured for providing the downlink control signal over a downlink control resource in an earlier time slot which is chronologically earlier than the first time slot.

Abstract: There is provided a timing entity for a communication network which includes a base station and a user equipment capable of communicating with each other over at least two carriers which have different temporal configuration of its uplink and downlink resources. The timing entity includes a control entity adapted for determining timing data defining a timing of a control signalling transmission which is related to a data transmission on a first carrier and which uses a resource of a first type on the second carrier. According to an embodiment the timing data specify for the control signalling transmission a time slot in which there is available a resource of the first type on the second carrier for the control signalling transmission. The control entity may be implemented in a base station and/or a user equipment.

Abstract: The disclosure relates to use of carriers for aggregation in a wireless system. A set of carriers available for use in carrier aggregation is first determined. It is then determined if at least one carrier of the set of carriers can become unavailable for use by a communication device. An indication of a configuration type of the at least one carrier is sent to the communication device, the configuration type being indicative of different behavior during a period. The at least one carrier is maintained in the set of carriers during said period. The communication device receives the indication. If a change in the availability state of the at least one carrier is determined, the communication is operated, device in relation to the at least one carrier, according to the availability state and the received indication during said period.

Abstract: There are provided measures for common control deactivation in carrier aggregation, said measures exemplarily including a configuration of a secondary carrier for carrier aggregation with a primary carrier of a terminal, including a deactivation of a common control for the secondary carrier, an indication of the deactivation of the common control for the secondary carrier via the primary carrier, and a signaling of control information, substituting control information of the deactivated common control, for facilitating selection of or operation on the secondary carrier without the deactivated common control via the primary carrier from a base station to the terminal. Said measures may exemplarily be applied for common control deactivation in carrier aggregation in heterogeneous network environments based on LTE, LTE-Advanced, HSPA and/or UMTS radio access systems.

Abstract: Transmitting an indication of a default configuration for a sub-frame having a downlink transmission portion and an uplink transmission portion; transmitting an indication of a preferred configuration for said sub-frame; and scheduling transmissions to and/or from a communication device according to said preferred sub-frame configuration.

Abstract: An apparatus, method and computer program product include requesting a physical identifier of a communication base station having a preset hierarchical distance to a communication core network from a first communication base station having a higher hierarchical distance than the preset hierarchical distance, based on a connection on one of an interface between a communication base station having a higher hierarchical distance than the preset hierarchical distance and the communication core network and an interface between two communication base stations both having a higher hierarchical distance than the preset hierarchical distance. Prior to the requesting, an initial synchronization with a neighbor base station can be established. After the requesting, an accurate synchronization with the overly base station based on the obtained physical identifier can be established.

Abstract: Synchronisation in a communication system A method and apparatus for a communication system is disclosed. In the system communications occur via a multiple of nodes each providing a stratum for synchronisation. It is determined that the stratum of a node is not included in a predefined set of stratums. In response to said determination synchronising with the node is provided differently from nodes with stratums without taking the order of the stratum into account. Information about the status can be communicated between nodes.

Abstract: It is provided an apparatus, comprising including deciding means configured to decide whether or not a predefined condition is met; receiving means configured to receive a first signal at predefined places; inhibiting means configured to inhibit sending a second signal at the predefined places, if the deciding means decides that the predefined condition is met; monitoring means configured to monitor, if the deciding means decides that the predefined condition is met, for at least two of the predefined places whether or not a first signal is received at the predefined places; defining means configured to define a first mute place based on the monitoring result of the monitoring means and a predefined rule, wherein the first mute place is one of the predefined places at which a first signal is received; wherein the inhibiting means is configured to inhibit sending the second signal at the first mute place.

Abstract: A method of coordinating the transmission resources used by the UEs for UL sounding transmission in a communication network wherein multiple base stations are receiving the sounding transmission from multiple UEs. the method including defining at least one coordinated multi-point transmission set including at least one of the plurality of base station, and/or grouping at least one of the plurality of user equipments of the at least one coordinated multi-point transmission set, transmitting coordinated sounding reference signals in the at least one coordinated multi-point transmission set, and estimating the full UL channel status based on the transmitted coordinated sounding signal.