Abstract: The invention provides a communication system and components thereof for controlling coordinated transmissions using a plurality of carriers operated by a plurality of transmission points. A transmission point configures a number of signal quality and interference measurements for a mobile telephone communicating over the plurality of carriers, each measurement being associated with multiple carriers and multiple measurement configurations. The mobile telephone performs the configured measurements with respect to each of the multiple carriers and reports the results of the relevant measurements to the transmission point.

Abstract: A cellular communication system is disclosed in which user equipment (UE) initiates a random access channel (RACH) procedure by sending one or more messages, comprising a random access preamble, to a 5G base station, using one or more uplink carriers of a plurality of such carriers available for use by the UE. The base station selects an uplink carrier for initial access by the UE and informs the UE, as part of the RACH procedure, of the UL carrier selected by the base station.

Abstract: Scrambling code is initialized based on a parameter, n?RNTI, that changes from a given block of sub-frames to a subsequent block of sub-frames wherein the parameter is derived using one of the following formulas: n?RNTI=(nRNTI+SFN)mod 216 n?RNTI=(nRNTI+k)mod 216 where nRNTI is a temporary identifier associated with a mobile device connected to said cell and for which said scrambling code is applicable; and SFN is a system frame number associated with said at least one of said sequence of sub-frames; and k is a sub-frame counter.

Abstract: A method is disclosed in which a user equipment (UE) that communicates with a radio access network (RAN) maintains information for configuring timing of fixed frame period (FFPs) for a listen-before-talk (LBT) procedure. When the UE has data to be transmitted, it performs a clear channel assessment, CCA, to determine if a communication channel is clear. When the CCA indicates that the communication channel is clear a channel occupancy time, COT, is initiated for the UE within a subsequent FFP and transmission of the data commences. However, transmission of the data ceases following receipt of an indication, from a node of the RAN, that the transmission should be stopped.

Abstract: A method is disclosed in which downlink control information transmitted by a radio access network provides an indication of at least one set of control resources configured at a UE, or of at least one search space configured at a UE, that the UE is to stop monitoring for DCI, start monitoring for DCI, or continue monitoring for DCI.

Abstract: A cellular communication system is disclosed in which user equipment (UE) initiates a random access channel (RACH) procedure by sending one or more messages, comprising a random access preamble, to a 5G base station, using one or more uplink carriers of a plurality of such carriers available for use by the UE. The base station selects an uplink carrier for initial access by the UE and informs the UE, as part of the RACH procedure, of the UL carrier selected by the base station.

Abstract: The invention provides a communication system and components thereof for controlling coordinated transmissions using a plurality of carriers operated by a plurality of transmission points. A transmission point configures a number of signal quality and interference measurements for a mobile telephone communicating over the plurality of carriers, each measurement being associated with multiple carriers and multiple measurement configurations. The mobile telephone performs the configured measurements with respect to each of the multiple carriers and reports the results of the relevant measurements to the transmission point.

Abstract: The invention provides a communication system and components thereof for controlling coordinated transmissions using a plurality of carriers operated by a plurality of transmission points. A transmission point configures a number of signal quality and interference measurements for a mobile telephone communicating over the plurality of carriers, each measurement being associated with multiple carriers and multiple measurement configurations. The mobile telephone performs the configured measurements with respect to each of the multiple carriers and reports the results of the relevant measurements to the transmission point.

Abstract: A cellular communication system is disclosed in which user equipment (UE) initiates a random access channel (RACH) procedure by sending one or more messages, comprising a random access preamble, to a 5G base station, using one or more uplink carriers of a plurality of such carriers available for use by the UE. The base station selects an uplink carrier for initial access by the UE and informs the UE, as part of the RACH procedure, of the UL carrier selected by the base station.

Abstract: In one aspect, a method performed by a user equipment (UE) in a communication network includes: receiving, in a downlink control information (DCI), from a base station, at least one indication, wherein each of the at least one indication indicates that uplink transmission by the UE should be cancelled or paused, and includes a combination of at least one bit representing at least one resource configuration for the uplink transmission; and cancelling or pausing respective uplink transmission in dependence on the at least one resource configuration represented by one of the at least one indication.

Abstract: A cellular communication system is disclosed in which user equipment (UE) initiates a random access channel (RACH) procedure by sending one or more messages, comprising a random access preamble, to a 5G base station, using one or more uplink carriers of a plurality of such carriers available for use by the UE. The base station selects an uplink carrier for initial access by the UE and informs the UE, as part of the RACH procedure, of the UL carrier selected by the base station.

Abstract: Scrambling code is initialized based on a parameter, n?RNTI, that changes from a given block of sub-frames to a subsequent block of sub-frames wherein the parameter is derived using one of the following formulas: n?RNTI=(nRNTI+SFN)mod 216 n?RNTI=(nRNTI+k)mod 216 where nRNTI is a temporary identifier associated with a mobile device connected to said cell and for which said scrambling code is applicable; and SFN is a system frame number associated with said at least one of said sequence of sub-frames; and k is a sub-frame counter.

Abstract: Scrambling code is initialized based on a parameter, n?RNTl, that changes from a given block of sub-frames to a subsequent block of sub-frames wherein the parameter is derived using one of the following formulas: n?RNTl=(nRNTI+SFN)mod 216 n?RNTl=(nRNTI+k)mod 216 where nRNTI is a temporary identifier associated with a mobile device connected to said cell and for which said scrambling code is applicable; and SFN is a system frame number associated with said at least one of said sequence of sub-frames; and k is a sub-frame counter.

Abstract: The invention provides a communication system and components thereof for controlling coordinated transmissions using a plurality of carriers operated by a plurality of transmission points. A transmission point configures a number of signal quality and interference measurements for a mobile telephone communicating over the plurality of carriers, each measurement being associated with multiple carriers and multiple measurement configurations. The mobile telephone performs the configured measurements with respect to each of the multiple carriers and reports the results of the relevant measurements to the transmission point.

Abstract: The invention provides a communication system and components thereof for controlling coordinated transmissions using a plurality of carriers operated by a plurality of transmission points. A transmission point configures a number of signal quality and interference measurements for a mobile telephone communicating over the plurality of carriers, each measurement being associated with multiple carriers and multiple measurement configurations. The mobile telephone performs the configured measurements with respect to each of the multiple carriers and reports the results of the relevant measurements to the transmission point.

Abstract: A cellular communication system is disclosed in which user equipment (UE) initiates a random access channel (RACH) procedure by sending one or more messages, comprising a random access preamble, to a 5G base station, using one or more uplink carriers of a plurality of such carriers available for use by the UE. The base station selects an uplink carrier for initial access by the UE and informs the UE, as part of the RACH procedure, of the UL carrier selected by the base station.

Abstract: A computer-implemented method for associating users to transmission points over an uplink (UL) of a heterogeneous network (HetNet) is presented. The computer-implemented method includes communicating, via the processor, with a cluster of transmission points, associating each user to one transmission point within the cluster of transmission points by a two-stage procedure, and performing sub-frame scheduling independently by each transmission point within the cluster of transmission points over a set of users associated with.

Abstract: The invention provides a communication system and components thereof for controlling coordinated transmissions using a plurality of carriers operated by a plurality of transmission points. A transmission point configures a number of signal quality and interference measurements for a mobile telephone communicating over the plurality of carriers, each measurement being associated with multiple carriers and multiple measurement configurations. The mobile telephone performs the configured measurements with respect to each of the multiple carriers and reports the results of the relevant measurements to the transmission point.

Abstract: The invention provides a communication system and components thereof for controlling coordinated transmissions using a plurality of carriers operated by a plurality of transmission points. A transmission point configures a number of signal quality and interference measurements for a mobile telephone communicating over the plurality of carriers, each measurement being associated with multiple carriers and multiple measurement configurations. The mobile telephone performs the configured measurements with respect to each of the multiple carriers and reports the results of the relevant measurements to the transmission point.

Abstract: A communication system is disclosed in which coordinated multi-point transmissions for a mobile device are carried out in two stages. In the first stage, a central controller obtains Channel State Information (CSI) reports from multiple transmission points, based on which the controller estimates respective data rates for transmissions between each transmission point and the mobile device. The controller determines an active set of transmission points to be associated with the mobile device, and informs the transmission points about the association made. In the second stage, the transmission points included in the active set carry out scheduling for the mobile device independently from each other until the controller updates the active set of transmission points.