Abstract: A communication system is disclosed in which a base station serves a communication area, wherein the communication area is formed by a plurality of directional beams each covering a respective portion of the communication area and each having a different respective beam identifier. The base station communicates control information, for a communication device (UE), using at least one directional beam associated with that communication device (e.g., a UE-specific operational beam set).

Abstract: A plurality of communications nodes are configured to form a wireless backhaul network to communicate data from a core network of the wireless communications network for transmitting to one or more communications devices or to communicate data to the core network received from the one or more communications devices. At least a first and a second of the plurality of communications nodes are donor communications nodes formed from radio network infrastructure equipment having a physical connection to the core network. According to example embodiments, a migrating communications node determines that it should migrate from a first attachment point in the wireless backhaul network in which the migrating node communicates the data to or from the core network via the first donor communications node. The term “attachment point” is used to express a link of a communications node to other nodes in the backhaul network.

Abstract: A method of transmitting or receiving data by a communications device in a wireless communications network, the method comprising: establishing a connection for transmitting or receiving the data in a first cell of the wireless communications network, determining a value of one or more input parameters, using the value of the one or more input parameters as inputs to a model trained using machine learning, determining, based on an output of the model, that the communications device should perform a handover to establish a connection in a second cell, and responsive to determining that the communications device should establish a connection in the second cell, transmitting a handover message to request the establishment of a connection in a second cell.

Abstract: A method of selecting a cell by a communications device in a wireless communications network comprises receiving from the wireless communications network an indication of a range of physical cell identifiers associated with one or more cells belonging to one or more non-public networks which form part of the wireless communications network which also includes public network cells, detecting signals received from a serving cell and signals received from one or more candidate cells in order to determine whether to remain attached to a currently serving cell or to reselect one of the candidate cells according to a cell reselection procedure when in an idle mode in which the communications device is not transmitting data to or receiving data from the wireless communications network.

Abstract: A wireless telecommunications apparatus for use in a wireless telecommunications network, the wireless telecommunications apparatus comprising: communication circuitry configured to transmit or receive wireless signals; and control circuitry configured to: control the communication circuitry to receive a first wireless signal, the first wireless signal being comprised in Downlink Control Information, DCI, and indicating a waveform to be used by the wireless telecommunications apparatus when transmitting a second wireless signal; and control the communication Receive first signal (DCI) circuitry to transmit the second wireless signal using the indicated waveform.

Abstract: A method of transmitting data by a communications device in a wireless communications network is disclosed. The method comprises determining an amount of uplink data to be transmitted by the communications device to the wireless communications network, and either transitioning to a connected state if the determined amount of the uplink data is greater than a first threshold (Y3) or, if the determined amount of the uplink data is less than the first threshold (Y3) selecting a random access preamble from one of a plurality of groups of random access preambles, selecting modulation and coding for transmitting the uplink data, and transmitting a random access message on a wireless access interface to the wireless communications network as part of a random access procedure.

Abstract: A user equipment for a mobile telecommunications system, including circuitry configured to communicate with a base station of the mobile telecommunications system, wherein the circuitry is further configured to: detect scheduling information for on-demand multicast broadcast service system information, wherein the scheduling information is included in predetermined system information transmitted from the base station to the user equipment; and request the on-demand multicast broadcast service system information based on the detected scheduling information.

Abstract: An infrastructure equipment forming part of a wireless communications network for transmitting data to or receiving data from a plurality of communications devices is provided. The infrastructure equipment providing a cell having a coverage area in which the plurality of communications devices are located. The infrastructure equipment comprises circuitry configured to transmit signals to the communications devices via a wireless access interface provided by the wireless communications network, receive signals from the communications devices via the wireless access interface, transmit to the plurality of communications devices an indication of one or more of a plurality of uplink data transmission configurations, receive a first signal comprising a random access preamble and uplink data from one of the communications devices, and transmit a random access response message to the one of the communications devices.

Abstract: A method of controlling a distributed unit, DU, connected to a central unit, CU, of a wireless communications network is provided. The method comprises receiving, from another DU connected to the CU, information for controlling communications with a communications device controlled by the DU. The information for controlling communications with the communications device being received over an air interface connecting the DU and the other DU. The method comprises controlling communications with the communications device based on the information for controlling communications with the communications device received over the air interface. The controlling the communications with the communications device comprises executing one or more control functions including at least a radio resource management, RRM, function.

Abstract: A method for operating a communications device in a wireless network formed by non-terrestrial network apparatus and gateways is described. The device operates in an in-coverage mode when within the network's coverage, allowing transmission and reception of signals. When the device is expected to go out of coverage at a specific time, it determines when it will next be in coverage. The device transitions to an out-of-coverage mode when out of range and automatically returns to the in-coverage mode when back within the network's coverage at the determined time.

Abstract: A communication system is disclosed in which a communication device transmits, to a base station and using communication resources that may be used for grant-free uplink communications, uplink data and information from which the communication device can be identified, wherein the information from which the communication device can be identified comprises a Cyclic Redundancy Check (CRC) value that is encoded with identity information identifying the communication device (for example, a C-RNTI of the communication device).

Abstract: A method for operating a communications device in a wireless network is described. While in an inactive state, the device receives a paging message indicating an upcoming downlink small data transmission (SDT). Upon receiving the message, the device determines if predetermined conditions for receiving the SDT are met. It then transmits an indication to the network regarding whether the conditions are met and receives the downlink SDT based on this determination.

Abstract: A communication system is disclosed in which minimum system information associated with a cell of a radio access network (RAN) is transmitted by a base station. The minimum system information comprises parameters for accessing a cell of the base station, divided into an initial part and a remaining part of the minimum system information. The base station transmits the initial part of the system information via a broadcast channel using a first set of communication resources; transmits information identifying an allocation of at least one further communication resource in a shared channel; and transmits the remaining part of the minimum system information using the at least one further communication resource identified by the allocation.

Abstract: Apparatus and methods for determining an uplink pathloss for a communications device. A system comprises: a first infrastructure equipment; a second infrastructure equipment; and a communications device configured to communicate with the first infrastructure equipment via a first air interface provided by the first infrastructure equipment, and to communicate with the second infrastructure equipment via a second air interface provided by the second infrastructure equipment. The first air interface is an uplink-only interface for the communications device, and wherein the second air interface is both an uplink and downlink interface for the communications device. The uplink pathloss for the communications device on the first air interface is determined based on a received signal power of a first reference signal at the first infrastructure equipment and a transmission power of the first reference signal.

Abstract: A method of operating a communications device for transmitting signals to and/or receiving signals from infrastructure equipment of a wireless communications network is provided. The method comprises receiving, from the infrastructure equipment on a first carrier for the communications device, an indication of uplink resources for transmitting a plurality of directional uplink beams to the infrastructure equipment on an second carrier for the communications device. The second carrier is an uplink-only carrier. The method comprises transmitting the plurality of directional uplink beams to the infrastructure equipment on the second carrier in accordance with the uplink resources indicated by the infrastructure equipment. The method comprises receiving, from the infrastructure equipment on the first carrier, an indication of a result of measurements performed on the plurality of directional uplink beams transmitted on the second carrier.

Abstract: A communications system is described in which user devices are allocated sub-carriers on which to transmit uplink data to a base station. ACK/NACK messages for the data transmitted on the uplink are then transmitted by the base station on sub-carriers that depend on the sub-carriers used to carry the uplink data. A direct mapping function is preferably used to determine the sub-carriers to be used for the ACK/NACK messages from the uplink sub-carriers. In another embodiment, the ACK/NACK messages are transmitted to the user devices on sub-carriers that are previously identified to the user devices, preferably by transmitting one or more index values to the user device in a control channel thereof.

Abstract: A method for operating infrastructure equipment in a wireless communications network is provided. The equipment transmits and receives signals from a communication device and a reconfigurable intelligent surface (RIS). During operation, a signature value associated with the communication device is determined, and one or more beams for signal transmission are selected based on the signature value. The selected beams include a direct beam between the infrastructure and the communication device and beams involving the RIS. The infrastructure equipment controls the RIS configuration to generate these beams, enabling efficient signal transmission between the communication device and the infrastructure.

Abstract: A communication system is disclosed in which a base station serves a communication area, wherein the communication area is formed by a plurality of directional beams each covering a respective portion of the communication area and each having a different respective beam identifier. The base station communicates control information, for a communication device (UE), using at least one directional beam associated with that communication device (e.g., a UE-specific operational beam set).

Abstract: A network node and method for operating a node in a wireless communications network involves communicating user plane data between network parts. The node uses a protocol stack with a physical layer, data link layer, and interworking layer. The interworking layer handles packets with headers and payloads, transmitting them via the data link and physical layers to other network nodes. It also receives packets from other nodes, routing them based on a routing table and packet headers. Each routing table entry corresponds to a connection between infrastructure equipment parts and user equipment associated with the communicated user data.

Abstract: A communications device is provided. The communications device comprises transceiver circuitry configured to transmit signals and receive signals to and from a wireless communications network, and controller circuitry. The controller circuitry is configured in combination with the transceiver circuitry to transmit to the wireless communications network, whilst operating in an inactive state, one or more signals comprising uplink data using a first of a plurality of beams each for transmission in a different one of a plurality of spatial directions, to detect, whilst operating in the inactive state, that the first beam satisfies a beam failure condition a specified number of consecutive times, and subsequently to determine, whilst operating in the inactive state, that the first beam has failed.