Abstract: A method for configuring a search space within which a mobile terminal performs blind decoding attempts for potential control message candidates which may be transmitted by a base station. The frequency domain resource for which the terminal performs a blind decoding attempt for a given candidate message is determined by a pseudo-random selection (known by both terminal and network) from a pre-determined set of possible resources. A pre-determined set of resources can be different for each candidate. In one embodiment the set of resources is configured by the network for each terminal and each candidate. The method may be applied for example to ePDCCH of an LTE-A wireless communication system.

Abstract: The present invention relates to a method for communicating in a network, the network comprising at least a first cell and a second cell including respectively a first primary station having a first antenna array dedicated to the first cell and a second primary station having a second antenna array dedicated to the second cell, for communicating with a plurality of secondary stations, the method comprising the step of (a) providing with a co-operative beamforming transmission from the first and second primary stations to at least one first secondary station, wherein step (a) includes (a1) the first secondary station signaling at least one channel matrix to at least one of the first and second primary stations, and (a2) the first and second primary stations applying a precoding matrix across both the first antenna array and the second antenna array, and wherein the precoding matrix comprises a first vector for the first cell and a second vector for the second cell, the precoding matrix being based on the at le

Abstract: The present invention relates to a method for operating a network comprising a primary station communicating with a plurality of secondary stations, the method comprising the primary station communicating with a secondary station in a discontinuous mode; the secondary station transmitting to the primary station a control message based on the current status of the secondary station; and the primary station changing a parameter of the discontinuous mode based on the control message.

Abstract: A Small Cell Network in which a terminal (1) is simultaneously served by a macro cell (10) and one or more small cells (20, 22, 24). When suitable uplink resources are not provided for data (PUSCH), the terminal (1) selects a cell and/or resource on which to transmit a scheduling request, or if no resource is allocated for scheduling requests (SR) the invention allows the terminal to select a suitable uplink cell and/or signature for a random access transmission (PRACH), and/or characteristic of a signal used to request such resources. A RACH transmission may also take place if SR has been transmitted more than a defined number of times without PUSCH resources being granted. Use of the most appropriate cell/resource for the request will improve the achievable data rate and system capacity.

Abstract: The present invention relates to a method for operating a network comprising a primary station communicating with a plurality of secondary stations, the method comprising the primary station communicating with a secondary station in a discontinuous mode; the secondary station transmitting to the primary station a control message based on the current status of the secondary station; the primary station changing a parameter of the discontinuous mode based on the control message.

Abstract: Embodiments of the present invention provide a new way for a UE to autonomously indicate to the network from which transmission points (TPs) it is able to receive certain broadcast signals. As an example, by receiving in a broadcast signal in the form of a synchronization sequence, the physical identity of a particular TP, a UE infers when it should, if it wishes, send on an UL an indication of its ability to receive the broadcast signal from that TP—i.e., an indication of its presence in the coverage of the TP. The network is then able to take suitable action in response to this, such as adjusting network coverage, enabling or disabling other broadcast channels and controlling paging.

Abstract: The present invention relates to a method for controlling communication resources in a cellular communication network (1), the cellular communication network comprising a plurality of cells (A to Q) which are under the control of at least one base station (10) and which use the communication resources to communicate via communication links, wherein a distance between two neighboring cells of the plurality of cells using a same communication resource is defined to be a re-use distance of said same communication resource.

Abstract: The present invention relates to a method for communicating between a primary station and a plurality of secondary stations, comprising (a) the primary station configuring a secondary station to search on a first channel 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, where at least one resource set might be used to transmit a message to a secondary station, (b) the primary station setting a characteristic of the first channel to a first value. (c) the primary station changing the characteristic of the first channel to a second value upon detection of a capacity event in the search spaces.

Abstract: A method is disclosed which is intended for use in multiple-input multiple-output wireless communication systems which have a plurality of adjacent cells (cell A, cell B, cell C, cell D), each containing one or more base stations which co-operatively transmit signals to, and receive signals transmitted from, a user equipment (UE). The user equipment is operable to feed back to the relevant base station(s) CSI reports relating to channel(s) between the relevant base station(s) and the users, the base stations are operable to adapt signals for transmission to users, based on the fed back channel state information. The method involves the UE being configured to select at least one cell to be the subject of a CSI report, and to send the CSI report with an indication of the subject cell(s). Feedback overhead on the uplink is reduced when many cells co-operate in transmission to the user equipment.

Abstract: A transmission procedure for use in a communication system including a base station and one or more terminals. The base station transmits a signal to a terminal, and provides the terminal with possible characteristics of a further signal for transmission from the terminal to the base station, the possible characteristics including at least one of: one or more locations for transmission of the further signal in the time domain; and one or more locations for the transmission of the further signal in the frequency domain; and wherein transmission of the further signal from the terminal, with one or more characteristics selected by the terminal from the possible characteristics, indicates further information relating to the terminal.

Abstract: Cell-specific or transmission point (TP)-specific information is indicated to a UE based on the subframe in which a cell/TP transmits its primary and secondary synchronization sequences (PSS and SSS). The principal scenario of interest is a dense deployment of picocells/TPs which are under the control of an overlaid macrocell's eNodeB. Since the antenna port from which PSS/SSS are transmitted can change between subframes, the invention associates some information (such as zero power CSI-RS) related to the picocell/TP transmitting the PSS/SSS with a particular PSS/SSS and subframe combination. The table of associations can be provided by signalling from the macrocell eNodeB, and the information being associated can then be obtained by the UE from any picocell/TP it is in range of without additional signalling being necessary.

Abstract: A wireless communication method in which a station is capable of performing transmission via a plurality of antenna ports simultaneously on an uplink to a wireless communication network, a plurality of transmission possibilities for said transmission being defined by the available antenna ports and/or formats available for transmitting from an antenna port, the station signifying information to the network by selecting from the transmission possibilities.

Abstract: A base station arranged to operate in a wireless communications system as a booster base station providing a cell which is operable as a booster cell providing additional capacity to a coverage cell which it at least partially overlaps, the booster cell being operable to function in a first mode and a second mode, wherein the booster cell provides more additional capacity to the coverage cell when functioning in the first mode than it does when functioning in the second mode, the booster base station comprising: a listening module configured to perform a survey of the uplink interference received at the booster base station; a storage module configured to store uplink scheduling information; a calculation module configured to calculate an adjusted uplink interference; and a switching module configured to switch the booster cell from functioning in the second mode to functioning in the first mode.

Abstract: A wireless communication method in which a user equipment receives downlink signals from at least first and second cells, said downlink signals include respective reference signals transmitted from each of the cells; and a channel jointly transmitted by the cells; the user equipment utilizing a joint amplitude and/or phase reference derived from the respective reference signals to demodulate the jointly transmitted channel.

Abstract: A method of communicating a plurality of transmission layers from at least one cell which is under the control of at least one base station to a user equipment. The plurality of transmission layers includes a data layer and an interference layer which are spatially multiplexed. The data layer includes user data for the user equipment and the interference layer interferes with the data layer. The method includes determining interference layer information relating to the interference layer, transmitting the data layer, the interference layer and a control channel message to user equipment. The control channel message includes a first information field and a second information field.

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: 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: A scheme for transmission of control channel information in a compact form intended to support SPS (Semi-Persistent Scheduling) in a wireless communication system. As applied to LTE, the scheme is to indicate a pre-configured UE-specific resource allocation in a Downlink Control Information (DCI) format containing information for multiple UEs in the same PDCCH. In order to avoid increasing the number of blind decodes, the DCI format size may be the same as an existing DCI format. Preferably the size of the new format is the same as that of DCI formats 0/1A/3/3A. The number of required bits per UE is minimised by signalling only one of a limited set of DCI messages per UE. The scheme provides a means for re-configuring SPS resources for multiple UEs using a single PDCCH transmission, whilst enabling better support for variable packet sizes and variable intervals between packets than currently defined SPS.

Abstract: A wireless communication method including providing one or more base stations each having at least one of multiple sets of antennas, each set of antennas being serving a distinct geographical area; configuring the sets of antennas for use as multiple antenna ports to perform at least data transmission; and receiving, at a subscriber station in wireless communication with at least one base station, a data transmission specific to the subscriber station. The data transmission is jointly transmitted using at least two of the antenna ports with transmit diversity applied between the at least two antenna ports, and at least two of the at least two antenna ports are configured from different ones of the multiple sets of antennas. The antenna ports may correspond to distinct cells and the subscriber station preferably provides separate feedback for each cell.

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 behaviour 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.