Abstract: The present invention relates to 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: 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.

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: The present invention relates to 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, and transmitting to the primary station a request for an uplink transmission resource if a request condition is satisfied, said request condition being based on at least one previous grant of uplink transmission resource, (b) at the primary station, granting to the secondary station an uplink transmission resource to be used.

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: 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.

Abstract: A wireless communication method and a wireless communication system includes a user equipment and a cooperating set of access nodes, each access node being operable to wirelessly exchange data and/or signalling information with the user equipment, the cooperating set participating directly or indirectly in the exchange with the user equipment in accordance with an exchange scheme, the cooperating set includes at least a first access node, the first access node being interconnected by an interface with a second access node.

Abstract: The present invention relates to 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, and transmitting to the primary station a request for an uplink transmission resource if a request condition is satisfied, said request condition being based on at least one previous grant of uplink transmission resource, (b) at the primary station, granting to the secondary station an uplink transmission resource to be used.

Abstract: A communication system, such as UMTS, comprises a scheduler (12) in a first station (PS) which is able to control a user equipment (UE1, UE2). The scheduler when operating in a data transmission mode, such as HSUPA (High-Speed Uplink Packet Access) controls the user equipment with combinations of absolute grants (AG) and relative grants (RG). The relative grants serve to adapt a transmission parameter relative to a reference value. The reference value for the relative grant is selected dependent on a property of one or more of the grants. Such a property may comprise the absolute grant being an all process grant or a single process grant.

Abstract: The application relates to a transmission method in a communication system comprising a base station, a relay node and a plurality of UEs, the method comprising: when a new user data stream is established between a UE and the relay node, sending data stream characteristics including quality of service requirements, a channel identification and a UE identification for the user data stream to the base station; for transmission between the relay node and the base station, grouping the user data stream into one of a plurality of groups of multiplexed user data streams, each of which groups is defined by quality of service requirements; wherein the user data stream can be distinguished within its group on receipt using multiplexing information held within the group in conjunction with the data stream characteristics.

Abstract: A method is provided in handover of a user equipment in a communications system from communicating with a donor node via a relay node, to communicating with a target node, the donor node being operable to transmit downlink data to the relay node in a series of sequentially marked donor packets, the relay node being operable to then transmit the downlink data to the user equipment in a series of sequentially marked relay packets. The method includes receiving a handover request at the donor node and, upon receipt, beginning buffering of the donor packets in a temporary buffer at the donor node, transmitting a status message from the relay node to the donor node indicating a first of the relay packets not received by the user equipment, transmitting an update message from the donor node to the relay node indicating the first donor packet buffered in the temporary buffer.

Abstract: A method in a communications system in which a plurality of user equipments are transmitting data to a donor node via a relay node, the plurality of user equipments each storing the data in its own UE buffer prior to transmission to the relay node, the relay node storing the data received from the plurality of user equipments in a relay buffer prior to transmission to the donor node. The method comprises at the relay node, sending a relay buffer status report from the relay node to the donor node when a buffered data value passes a threshold value. The buffered data value representing either data stored in the UE buffers or data stored in the relay buffer.

Abstract: A method of operating a packet data multicast communication system which comprises a network or NodeB (BS) and a plurality of mobile stations (MS1, MS2, MS3). The network and the mobile stations have transceiving equipment (14, 34) for the transmission of data packets on a downlink between the network and mobile stations, and feedback signalling (ACK/NACK) on an uplink. The mobile stations have means for receiving a data packet transmitted by the first station, means (46) for measuring the quality of reception, means (30, 48) for determining into which one of at least three predetermined quality ranges the measured quality falls. Each of the at least three predetermined quality ranges represents a respective transmitter behavior of the first station and the transmitter behavior corresponding to at least two non-contiguous ones of the quality ranges is identical.

Abstract: A system (50) for communicating data packets from a first station (100) to a destination (400) via at least one of a plurality of second stations (200) which are coupled to the destination (400), in which the second stations (200) acknowledge receipt of the data packets. The first station (100) decides whether to retransmit a data packet or to proceed with transmitting the next data packet, the decision being dependent on receiving a plurality of positive acknowledgements or a plurality of negative acknowledgements.

Abstract: The present invention relates to method for communicating in a network comprising the step a) of a primary station transmitting to at least one secondary station on a downlink control channel an indication related to a resource allocated to said secondary station in accordance with a semi persistent schedule, wherein the step a) comprises the step of transmitting to the secondary station at least two messages including at least part of the indication in one subframe.

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 of communicating in a network, comprising a secondary station transmitting to a primary station a data packet comprising a report, the secondary station monitoring before transmission of the packet whether said packet includes an indication of the order of transmission in a sequence of transmitted packets, and adding an indication of the order of transmission in a sequence of transmitted packets.

Abstract: First and second data is transmitted simultaneously by modulating a first set of signal constellation points, corresponding to the first data, with second data thereby creating a second set of constellation points. The second set of constellation points comprises two subsets corresponding to two values of the first data. The constellation points are selected such that the minimum distance between the first and second subsets is not less than the minimum distance between the constellation points of the first set of constellation points.

Abstract: A method of operating a communication station including queuing data units, estimating the transmission delay of at least one of the data units in the queue, and if the estimated transmission delay exceeds a threshold, requesting permission to transmit at least one data unit.

Abstract: Data packets having different assigned priorities are multiplexed by operating a queue for each different priority of data packet and assembling groups (80) of the data packets for transmission. Each group has two portions. A first portion (90) of the group is populated with data packets selected from one or more of the queues according to a first rule and a second portion (95) of the group is populated with data packets selected from one or more of the queues according to a second rule. Preferably the first portion contains data packets having the highest priority, and the second portion contains a selection of the data packets having a lower a priority. Selection of data packets for the second portion may depend on criteria such as delay experienced and queue length. The size of the first and second portions may be adapted according to delay experienced and queue length.