Abstract: A method, apparatus and computer program product are provided herein for enabling the joint detection and decoding of uplink state flag symbols. In this regard, a method is provided that determining one or more residual error terms by jointly detecting and decoding in one or more bursts of a radio block. In some example embodiments, the one or more residual error terms are determined over a plurality of uplink state flag symbols in the one or more bursts that correspond to a plurality of available uplink state flag sequences. The method of this embodiment may also include determining a weighted error measure for each of the plurality of available uplink state flag sequences based on the one or more residual error terms. The method of this embodiment may also include determining an uplink state flag value based on the plurality of weighted error measures.

Abstract: Method, operation of a method, and a result of execution of computer program instructions embodied on a non-transitory computer readable memory in a mobility management entity which determines whether a source and destination address of certain Internet protocol data flow are within a specific network in an evolved packet system for evaluating and controlling potential opportunities for device to device communication among two or more proximately located user equipment. In response to determining that the target serving gateway is the source gateway, identification information of the source user equipment is sent to a target serving gateway.

Abstract: If an allocated radio resource in a 2nd component carrier/CC, which is cross scheduled from a 1st CC and the 1st and 2nd CCs have different 1st and 2nd UL/DL subframe configurations, then it is checked if a mapped subframe for acknowledging data that is mapped from the allocated radio resource according to the 2nd UL/DL configuration is a subframe for acknowledging data according to the 1st UL/DL configuration. If not, then the UE or NodeB tune their radio to a predefined resource within the mapped subframe in the 1st CC for acknowledging data on the allocated radio resource in the 2nd CC. If yes then the mapping is conventional. Multiple implementations are shown by which the predefined resource is a resource element or physical resource block depending on whether the mapped subframe according to the 1st UL/DL configuration is a PDCCH or a PDSCH, and these may be implicitly or explicitly linked to the allocated resource.

Abstract: A method, apparatus and computer program are provided for controlling a communications state of an apparatus with respect to a serving cell in a communications network. The apparatus is configured with a first and second, different signal threshold, wherein the first and second signal thresholds are dependent on a reference signal. A value of a signal associated with at least one cell in the communications network is monitored. A timer is configured with a first operative state when the monitored signal value is determined to exceed the first signal threshold and a second operative state when the monitored signal value is determined to be lower than the second signal threshold. Responsive to a value of the timer satisfying a predetermined time parameter, the communications state of the apparatus with respect to its serving cell is adjusted.

Abstract: A wireless device operates in a wireless cellular network under control of a network control apparatus. The wireless device transmits a signal to the network control apparatus. The wireless device receives from the network control apparatus a negative acknowledgement of receipt of the signal in accordance with an automatic repeat request process, The negative acknowledgement indicates that the signal was not received or was not received correctly by the network control apparatus. The wireless device either does not retransmit the signal to the network control apparatus or delays the retransmission of the signal to the network control apparatus in order to avoid conflict with a device-to-device discovery signal being sent by another wireless device.

Abstract: Measures for enabling accurate and prompt inter-cell interference detection in a multi-cell environment. Such measures may include, at a network side of a cellular system, inputting a code-spreaded interleaved frequency division multiple access signal, despreading the inputted signal using a plurality of user-specific spreading codes including at least one spreading code of a user of a subject cell and at least one spreading code of a user of a neighboring cell, and detecting inter-cell interference information on the basis of user-related despreaded signals.

Abstract: A method, apparatus and computer program product are therefore provided according to an example embodiment to provide a cellular based ITS environment. The cellular based ITS environment may be configured based on LTE based interfaces. In this regard, a method includes receiving configuration information from a first access point, wherein the configuration information defines an ITS target area comprising at least the first access point and a first RSU. A method also includes receiving an ITS paging message from the first access point. A method also includes causing a reselection of the first RSU while in the communications range of the first access point in the ITS target area and in response to the received ITS paging message.

Abstract: A geographic region in which an access point AP lies is divided into sectors, each sector associated with a group; and a station is assigned to a group based on location information of the station relative to the sectors. The station can assign itself to a group autonomously, after determining the number of groups from signalling received from the AP. Or the AP can do the group assignments, such as by assessing distance between adjacent stations. The AP can utilize the station's location information to test whether a first link between the station and a first node of a first group is sufficient. If the test indicates that the first link is sufficient the AP can assign the station to the first group, else it will utilize the location information to test whether a second link between the station and a second node of a second group is sufficient.

Abstract: Methods, apparatus and computer program products define additional resource elements of a physical resource block (PRB) to be allocated for the provision of channel state information reference signals in a manner that does not create issues relating to backwards compatibility for legacy mobile terminals. A method may include receiving a definition of a plurality of resource elements of a PRB to be allocated for provision of channel state information reference signals. At least some of the plurality of resource elements of the PRB that are allocated for the provision of channel state information reference signals correspond in position to resource elements of the PRB that are interpreted by a different type of mobile terminal to be muted. The method also causes channel state information reference signals to be received via the plurality of resource elements of the PRB that are allocated for the provision of channel state information reference signals.

Abstract: The present invention proposes methods, devices and computer program products in relation to interference reduction, in particular for control channels in TDD systems allowing allocation of flexible subframes for uplink or downlink transmission. In relation thereto, a format of data transmission in flexible subframes in the uplink and/or downlink is modified.

Abstract: A device and method arranged to control access to resources of a communication network by a User Equipment (UE). One embodiment includes an apparatus for a user equipment for use in controlling access to resources of a communication network, the apparatus including a processing system arranged to cause the apparatus to: monitor for a change in a state of association between a Closed Subscriber Group (CSG) cell and the user equipment, said CSG cell having a Public Land Mobile Network Identity (PLMN ID) and a CSG Identity (CSG ID) associated therewith; and in response to a said change, communicate data indicative of the change, of said CSG ID and of said PLMN ID, for receipt by a Universal Integrated Circuit Card (UICC) associated with the user equipment, whereby to enable the UICC to control access to resources of said CSG cell.

Abstract: Apparatus and method for communication are provided. The solution comprises communicating on a synchronized shared channel having a frame structure comprising symbols; receiving from a network element a given number for each frame or sub frame, and during the given number of symbol periods in the beginning of a frame or sub frame measuring interference and making a decision whether to transmit or not during the rest of the symbol periods of the frame or sub frame.

Abstract: An apparatus and method enable a full duplex system with self-interference cancellation. Receiving circuitry forming a signal receiving path is arranged for transferring communication signals received via air interface. Transmitting circuitry forming a signal transmission path is arranged for transferring communication signals to be transmitted via air interface. Interference cancellation circuitry is in operable connection between the signal receiving path and the signal transmission path. The receiving circuitry and the transmitting circuitry are arranged to receive and transmit communication signals at the same time and at the same frequency. The interference cancellation circuitry comprises resistance, inductance and capacitance arranged to constitute a center frequency of an isolation range between the signal receiving path and the signal transmission path which substantially falls into the center of a communication band for the signals received and/or to be transmitted via air interface.

Abstract: Measures are provided for performing direct radio-frequency to digital conversion. A radio-frequency input signal is compared with a plurality of reference voltages to generate a plurality of comparison signals, each comparison signal corresponding to one of the plurality of reference voltages. One or more of the plurality of generated comparison signals are first filtered to generate a first filtered signal. One or more of the plurality of generated comparison signals are second filtered to generate a second filtered signal. A digital output signal is generated at least on the basis of the first filtered signal and the second filtered signal.

Abstract: Data is written from a first domain to a FIFO memory buffer in a second domain. The first domain uses a first clock signal, the second domain uses a second clock signal and the memory buffer uses the first clock signal that is delivered alongside the data. The data is read from the memory buffer using the second clock signal. A read pointer is adjusted and synchronised with the delivered first clock signal. A token is generated using the delivered first clock signal, based on the read pointer. The token represents a capacity of the memory buffer having been made available. The token is passed to the first domain and synchronised with the first clock signal. The writing of data to the memory buffer is controlled based on a comparison between the synchronised token and a previously received token.

Abstract: Method and apparatus which prevents or at least significantly reduces errors during dynamic TDD UL/DL configuration changes. Received downlink time division duplex subframes are monitored during a predetermined time window, wherein at least a portion of the subframes includes an uplink/downlink configuration indication. In response to not detecting an uplink/downlink configuration indicated by any of the uplink/downlink configuration indications in the monitored downlink time division duplex subframes, an average of the monitored uplink/downlink configuration indications is calculated. The calculated average is utilized in determining a time division duplex uplink/downlink configuration to be used.

Abstract: An apparatus, method and computer program product comprise controlling cellular network based communication in a primary cell on a frequency band related to the cellular network and by using an uplink and downlink configuration specific to the primary cell; controlling communication in a secondary cell on a frequency band related to a television white space channel and by using an uplink and downlink configuration specific to the secondary cell; measuring radio interference on a temporarily set uplink related carrier on the secondary cell based on information on the temporarily set uplink related carrier received on a downlink related carrier on the primary cell; and reporting results of radio interference measurement via the primary cell.

Abstract: A semiconductor device includes a clock input circuit that receives an external clock signal, a PLL circuit for input timing control that performs phase adjustment between the external clock signal and a delayed clock signal to generate an internal clock signal used to acquire input data, and a delay circuit that delays the internal clock signal to output the internal clock signal that is delayed to a PLL circuit for input timing control as a delayed clock signal. The semiconductor device further includes a PLL circuit for output timing control that performs phase adjustment between the external clock signal and a delayed clock signal to generate an internal clock signal used to output output data, and a delay circuit that delays the internal clock signal to output the internal clock signal that is delayed to the PLL circuit for output timing control as a delayed clock signal.

Abstract: The present invention discloses a signaling method, an apparatus and a computer program for controlled transmission signal deferring utilizing both licensed and unlicensed frequency bands for carrier aggregation. In the method, a connection is established between a User Equipment and a base station. For example, based on a sensed interference level, a transmission deferring indication is generated regarding a secondary component carrier locating on an unlicensed band, in case the secondary component carrier is occupied. This indication may be generated and sent either by the base station or by the User Equipment. Finally, the secondary component carrier is deactivated for data transmission, for deferring data transmission for a certain time period. After the deferring time has passed, the data transmission can be re-performed on the same secondary component carrier, or through switching to another secondary component carrier in unlicensed spectrum.

Abstract: A method, apparatus and computer program product are provided that may support power headroom reporting in conjunction with carrier aggregation, such as the secondary cell(s) of a network that supports carrier aggregation. A method, apparatus and computer program product may be configured to receive a command from a primary cell indicating that a connection with a secondary cell is to be activated, receive scheduling information for the secondary cell and cause a power headroom report including actual power headroom parameters, such as at least one of actual power headroom or Pcmax, to be provided no later than in conjunction with an initial transmission following activation of the secondary cell.