Abstract: A primary station and at least one secondary station communicate on a downlink control channel in a network, wherein the primary station transmits an indication related to a resource allocated to one of the secondary stations in accordance with a semi persistent schedule, wherein at least two messages, which include at least part of the indication, are transmitted in one subframe.

Abstract: In a heterogeneous network based on LTE, the random access, RA, procedure triggered in a macrocell produces transmissions from a UE (20) on the physical random access channel, PRACH, which a picocell eNB (12) can attempt to make measurements of for interference coordination purposes over the X2 interface between the macro eNB (10) and the pico eNB (12). By reconfiguring the UE's behavior during principally the contention-free RA procedure, its transmissions on PRACH are made different to the default such as to be suitable for heterogeneous network interference measurements. This is done by assigning new meanings to certain of the characteristic parameters provided by the macro eNB (10) to the UE (20), such as the RA preamble it uses and the C-RNTI it is assigned during the procedure.

Abstract: A communication system includes a plurality of base stations and a user equipment, wherein the communication link is established between the user equipment and a source base station of the plurality of base stations. A method includes: selecting a target cell and a re-establishment cell of at least one candidate handover base station of the plurality on the basis of a measurement report, the measurement report comprising measurements of attributes of cells of the plurality of base stations for a handover; initiating a handover preparation by transmitting a request from the source base station to the at least one candidate handover base station, wherein the request indicates the target cell and the re-establishment cell; carrying out admission control on the target cell and on the re-establishment cell; initiating the handover by transmitting a handover request acknowledgement from the at least one candidate handover base station to the source base station.

Abstract: An access method of a device (10) such as an MTC device to a network (20, 30, 40) which allows the transmission of small data packets without the need to read all the System Information normally required to make an initial network access. The device (10) may notify the network that an access request is occurring from a device that was either specifically allowed to use a stored access configuration or is accessing the cell using modified system information being broadcast by the cell. Such notification may be implicit in the characteristics (choice of preamble, timing, frequency and/or repetition) of the access request. The network, preferably having knowledge of the method being used by the device to access the network, can either reject this access or accept it depending on whether the access was from a stored configuration or read from System Information.

Abstract: A method may include detecting multiple system-information block (SIB) blocks and associated content. The associated content may be stored. The method may further include detecting multiple change flags associated with the multiple SIB blocks, each of the multiple change flags associated with one of the multiple SIB blocks. In response to detecting a change flag having a first change flag value, content of the SIB block associated with the first change flag may be reused. The first change flag value may represent an absence of a change to the content of the SIB block associated with the first change flag. In response to detecting the change flag having a second change flag value, the SIB block associated with the second change flag may be detected and the associated content stored. The second change flag value may represent a change to the content of the associated SIB blocks.

Abstract: A method may include detecting a synchronization signal from a base station. The method may further include determining a synchronization detection probability based on the detection of the synchronization signal. The method may further include estimating a coverage deficit range based on the synchronization detection probability. The method may further include transmitting coverage deficit signaling configured to indicate the coverage deficit range estimated based on the synchronization detection probability.

Abstract: A method of operating a wireless communication system comprising one or more base stations each configured to provide a corresponding coverage in use, a particular one of the base stations providing coverage to one or more in-coverage terminals, there being one or more out-of-coverage terminals outside the coverage provided by the particular base station, the method comprising: determining whether a condition related to direct device-to-device wireless communication between the in-coverage terminals and the out-of-coverage terminals is satisfied; and if the condition is satisfied, changing at least one of the coverage of the particular base station and the coverage of another one of the base stations, so as to provide coverage to one or more of the out-of-coverage terminals.

Abstract: The invention provides for association of data streams (and/or logical channels) with individual carriers (cells), and independent buffer status reporting per carrier for terminals with more than one uplink carrier configured. In a “Small Cell” scenario for 3GPP LTE, a terminal may be simultaneously served by a macro cell and one or more small cells. These may operate at different frequencies, have different traffic loading and support different QoS (Quality of Service). The invention allows independent control of traffic on the uplinks to the macro cell and the small cells, which can be used to optimize the user experience in relation to the available resources at any given time/location, and allows particular data to be routed via particular cells.

Abstract: The present invention refers to transmission method in a mobile communication system (1) comprising a base station (20) and a terminal (10) for transmitting transmission data to the base station. In order to provide a more efficient transmission procedure, a method is provided, in which the terminal transmits a message to the base station indicating that an uplink transmission resource is to be used by the terminal; and further information is provided by the terminal to the base station.

Abstract: The present invention relates to a method for communicating in a network comprising at least one primary station communicating with at least one secondary station, comprising (a) the secondary station sending to the primary station a buffer status report representative of the amount of data in a buffer of the secondary station, (b) in absence of acknowledgement from the primary station, the secondary station retransmitting the buffer status report and, (c) if a maximum number of retransmissions has been reached, the secondary station sending a further buffer status report to the primary station.

Abstract: A method for activation of a wireless communications link between a terminal (UE) and a first base station (SCeNB) under control of a second base station (MeNB), the method includes: the second base station (MeNB) sending a first activation request signal to the terminal (UE); and the terminal (UE), in response to the first activation request signal, sending a second activation request signal to the first base station (SCeNB). The terminal therefore acts as proxy for communicating an activation request from the second base station to the first base station. This is useful in Small Cell scenarios where backhaul latency may delay an activation request over the X2 interface between the base stations.

Abstract: A telecommunications method in a wireless communication network comprising a base station, a supplementary transmission unit and one or more user equipments, the supplementary transmission unit being initially in a dormant state in which it does not transmit; wherein based on the configuration from the base station the supplementary transmission unit measures a parameter of uplink transmission from the user equipment towards the base station; and a decision is made as to whether to activate the supplementary transmission unit in dependence upon the measured parameter.

Abstract: The present invention relates to a method for communicating in a network comprising at least one primary station communicating with at least one secondary station, comprising (a) the secondary station sending to the primary station a buffer status report representative of the amount of data in a buffer of the secondary station, (b) in absence of acknowledgement from the primary station, the secondary station retransmitting the buffer status report and, (c) if a maximum number of retransmissions has been reached, the secondary station sending a further buffer status report to the primary station.

Abstract: The present invention relates to a method for communicating between a primary station and at least one secondary station, comprising configuring each secondary station to search at least one of a plurality of search spaces having a first structure, said first structure consisting of at least a first number of resource sets having a first size, where at least one resource set might be used to transmit a message to the considered secondary station, changing the search space structure to a second structure different from the first structure in response to a signalling message.

Abstract: The present invention relates to a method for communicating in a network comprising a primary station and at least one secondary station, the secondary station comprising a buffer containing data packets to be transmitted to the primary station, the method comprising the secondary station transmitting an indication of the buffer status to the primary station, whereby the indication comprises information about the history of the buffer.

Abstract: A method for communicating in a network between a primary station and at least one secondary station on a downlink control channel, wherein the primary station transmits an indication related to a resource allocated to one of the secondary stations in accordance with a semi persistent schedule, wherein at least two messages, which include at least part of the indication, are transmitted in one subframe.

Abstract: A wireless communication method for machine type communication (MTC) where a base station defines a cell for wireless communication of the base station with devices within the cell via a downlink from the base station and via an uplink to the base station using one or more radio bearers; and a plurality of MTC devices are in wireless communication with the base station. The plurality of MTC devices share a radio bearer on at least one of the downlink by taking turns to receive data from the base station according to a predetermined schedule; or the uplink by taking turns to transmit data to the base station according to a predetermined schedule and the base station records each MTC device as a member of a group and assigns to each MTC device a first respective timing based on information which distinguishes the MTC device within the group.

Abstract: The present invention relates to a method for communicating between a primary station and a secondary station comprising (a) at the secondary station, upon arrival of a data packet to be transmitted to the primary station, buffering said data packet in a buffer, (b) at the secondary station, after the expiration of a time period starting at arrival of the data packet, transmitting to the primary station a request for an uplink transmission resource if a grant of uplink transmission resource is not received during the said time period, (c) at the primary station, granting to the secondary station an uplink transmission resource.

Abstract: A buffer status reporting scheme for a terminal (10) wishing to transmit data simultaneously in multiple RATs of a wireless communication network, which enables the co-ordination of multiple base stations (12, 14) of different RATs (e.g. LTE eNB, UMTS base station, WiFi access point, etc.) with the assistance of the terminal (10) in order to achieve efficient radio resource scheduling for multi-RAT multi-flow aggregation in uplink. A radio bearer is configured for multi-RAT multi-flow aggregation by the network, and multiple logical channel IDs are assigned to this RB that may be associated with different RATs. Logical channels associated with a certain RAT (or a given set of RATs) may be grouped into one logical channel group for radio resource scheduling reason. The terminal (10) performs buffer status reporting, according to the configuration, on all involved RATs and sends reports/indications to one or more involved base stations (12.14).

Abstract: The present invention relates to a method for communicating in a network comprising a primary station and at least one secondary station, said secondary station comprising a buffer containing data packets to be transmitted to the primary station, the method comprising the step of the secondary station transmitting an indication of the buffer status to the primary station, said indication comprising information about history of said buffer.