Abstract: The invention relates to a client device (100) and a network access node (300) for transmitting and receiving a random access preamble. The modulation sequence for the random access preamble is based on a first sequence and a second sequence. The first sequence is a sequence from a set of near-orthogonal sequences and the second sequence is a sequence from a set of constant envelope sequences. Due to its construction, the random access preamble herein provides low PAPR and suppresses the side-lobes in its auto-correlation function while producing a set of preambles with low cross-correlation. Furthermore, the invention also relates to corresponding methods and a computer program.

Abstract: A client device for wireless communication includes a transceiver and a processor. The transceiver is configured to receive frequency resource information to indicate a set of frequency resources for a physical random access channel (PRACH) preamble transmission. The frequency resource information includes at least one of: an interlace information indicating at least one of an interlace of a block-interlaced frequency-division multiplexing (B-IFDM) allocation, a resource element allocation information indicating a subset of resource elements within each block of the at least one B-IFDM interlace, and a resource element spacing information, such that an at least one resource element within at least one block of the at least one B-IFDM interlace is allocated for the transmission of one PRACH preamble according to a tone-interlaced frequency-division multiplexing (T-IFDM) allocation. The resource element allocation is repeated in each block of the at least one B-IFDM interlace.

Abstract: The present disclosure relates to reference signal design methods and devices. In one example method, a first communication device obtains at least one sequence from a subset of sequences in a set of sequences and obtains at least one reference signal based on the obtained at least one sequence. The sequence is phase rotated during its generation, phase rotated in the frequency domain, or cyclically shifted in the time domain based on a constant value ?q. The first communication device transmits the reference signal to a second communication device.

Abstract: This disclosure relates to techniques for synchronization signals. The synchronization signal comprise a primary synchronization signal (PSS) generated based on a PSS sequence and a secondary synchronization signal (SSS) generated based on an SSS sequence. The SSS sequence may be generated based on a first sequence corresponding to a first cyclic shift and a second sequence corresponding to a second cyclic shift. The first cyclic shift and the second cyclic shift are associated with a Cell ID. The PSS sequence may be generated based on one of the first and the second sequences.

Abstract: The present disclosure relates to a client device and a network access node for transmitting and receiving a random access preamble which comprises a division of a set of resource blocks available for transmission of the random access preamble into at least two subsets of resource blocks, wherein each resource block in the set of resource blocks comprises a plurality of subcarriers, a first selection of resource blocks within the first subset of resource blocks and a second selection of resource blocks within the second subset of resource blocks, wherein the first selection of resource blocks is different to the second selection of resource blocks, and a mapping of a modulation sequence of the random access preamble onto at least one subcarrier in each selected resource block. Thereby, lower side-lobes of the auto-correlation function is achieved. Furthermore, the present disclosure also relates to corresponding methods and a computer program.

Abstract: A method includes allocating, by a communications controller, a first set of resource blocks to an enhanced physical downlink shared channel (ePDSCH), where the ePDSCH has a first starting point and allocating, by the communications controller, a second set of resource blocks to an enhanced physical downlink control channel (ePDCCH). The method also includes identifying, by the communications controller, a second starting point for the ePDSCH, where the second starting point for the ePDSCH is located within a legacy control region, where the first starting point of the ePDCCH is located within the legacy control region, and where the second starting point of the ePDSCH is different than the first starting point of the ePDCCH. Additionally, the method includes signaling, by the communications controller to a user equipment (UE) the second starting point and a number of the second set of resource blocks allocated to the ePDSCH.

Abstract: Various embodiments of this disclosure relate to generation and reception of signals comprising cyclically shifted basis functions. A device may obtain a set of modulation symbols and modulate a plurality of basis functions based on the set of modulation symbols to generate a signal. The plurality of basis functions may comprise cyclically shifted versions of a basis function and a periodic autocorrelation function of the basis function may comprise an ideal (e.g., perfect) periodic autocorrelation function.

Abstract: The present disclosure relates to reference signal design methods and devices. In one example method, a first communication device obtains at least one sequence from a subset of sequences in a set of sequences and obtains at least one reference signal based on the obtained at least one sequence. The sequence is phase rotated during its generation, phase rotated in the frequency domain, or cyclically shifted in the time domain based on a constant value ?q. The first communication device transmits the reference signal to a second communication device.

Abstract: The disclosure relates to a network node and a user device. The network node is configured to determine a resource indicator comprising a single resource allocation value that specifies a first start index and a first number of frequency resources. The first start index and the first number of frequency resources are used for allocating a first set of contiguous frequency resources within a first sub-band, and a corresponding first set of contiguous frequency resources within a second sub-band. The first sub-band and the second sub-band are non-overlapping and comprise equal number of frequency resources. The network node includes a transceiver configured to transmit a transmission grant comprising the resource indicator to the user device.

Abstract: A user device and a network node for a wireless communication system are provided. The user device configured to receive a transmission grant indicating a set of frequency resources assigned for transmission to a network node; configured to determine a channel access outcome based on a channel access procedure performed in the set of frequency resources; wherein is configured to transmit a first signal to the network node in the set of frequency resources according to the channel access outcome. The network node configured to transmit a transmission grant to a user device, the transmission grant indicating a set of frequency resources assigned for transmission from the user device to the network node and for performing a channel access procedure; receive a first signal from the user device in the set of frequency resources. The disclosure also relates to a non-transitory computer-readable storage medium.

Abstract: This application provides an information transmission method and apparatus. The method includes: sending, by a network device, first information, where the first information indicates a first parameter, and the first parameter is at least one of 237, 216, 195, 173, 152, 137, 132, 127, 121, 117, 112, 108, 103, 99, 94, 91, 89, 86, 84, 81, 77, 74, 72, 69, 68, 67, 66, 64, 63, 62, 61, 59, 58, and 57, or at least one of 153, 137, 122, 109, 97, 85, 81, 77, 74, 71, 68, 65, 63, 60, 57, 55, 53, 51, 50, 48, 47, and 45. According to the information transmission method and apparatus provided in this application, information used to generate a random access preamble sequence can be configured for a terminal device.

Abstract: A transmitting device and a receiving device are described for a wireless communication system. The transmitting device transmits one or more synchronization signals on a carrier to at least one receiving device. A frequency of a synchronization signal among the one or more synchronization signals is located on a first frequency raster, and a carrier frequency of the carrier is deployed on a second frequency raster. The frequencies of two different synchronization signals among the one or more synchronization signals are located on different frequency positions in the first raster. The transmitting device transmits an indication of the carrier frequency to the at least one receiving device. The indication comprises at least one integer number. The receiving device derives the carrier frequency based on the at least one integer number.

Abstract: A transmitter, a receiver and methods therein, configured to transmit a first type of synchronisation signal, in M1 symbols li,, 0?i?(M1?1) and a second type of synchronisation signal in M2 symbols kj,, 0?j?(M2?1) of a subframe, wherein M2?M1?2. The transmitter comprises a processor, configured to determine in which symbols li the synchronisation signal of the first type is to be transmitted, and in addition configured to calculate in which symbols kj, the synchronisation signal of the second type is to be transmitted, by placing each of the M2 symbols kj at a symbol distance from an associated symbol li. The transmitter also comprises a transmitting circuit configured to transmit the synchronisation signals of the first type in the M1 symbols li, and transmitting the synchronisation signals of the second type in the M2 symbols kj.

Abstract: Transmit device and method therein, for providing transmission burst information to a receive device by downlink control signalling. The transmit device is configured to: transmit a Downlink Control Information, DCI (210-1), comprising the transmission burst information, wherein the DCI (210-1) has the same number of bits as a DCI format used for PDSCH scheduling. Also a receive device (120) and method (600) therein is disclosed.

Abstract: The invention relates to a client device (100) and a network access node (300) for transmitting and receiving a random access preamble. The modulation sequence for the random access preamble is based on a first sequence and a second sequence. The first sequence is a sequence from a set of near-orthogonal sequences and the second sequence is a sequence from a set of constant envelope sequences. Due to its construction, the random access preamble herein provides low PAPR and suppresses the side-lobes in its auto-correlation function while producing a set of preambles with low cross-correlation. Furthermore, the invention also relates to corresponding methods and a computer program.

Abstract: Example transmit devices, receive devices, and related methods are described herein, In one example, transmission burst information is provided to a receive device by downlink control signalling. An example transmit device is configured to transmit a Downlink Control Information, or DCI, the DCI including the transmission burst information. The DCI has the same number of bits as a DCI format used for PDSCH scheduling.

Abstract: A network node configured to operate in an unlicensed communication spectrum includes a processor and a transceiver, the processor being configured to determine an identifier for subframe for an uplink control channel transmission, the uplink control channel transmission comprising at least HARQ-ACK information, wherein the subframe for the uplink control channel transmission is a function of at least an index of a subframe in a downlink control channel that is configured to transmit the identifier, and the identifier; and wherein the transceiver is configured to transmit the identifier in the downlink control channel.

Abstract: Embodiments provide methods and devices for data transmission and assignment of uplink control channel resources in an uplink FDD carrier, for enabling a terminal device to provide HARQ feedback for data transmitted in the downlink using carrier aggregation of a downlink FDD carrier and at least one TDD carrier. A method includes associating each downlink subframe in the downlink FDD carrier with an uplink control channel subframe in the uplink FDD carrier, associating each downlink subframe and special subframe in the TDD carrier with an uplink control channel subframe in the uplink FDD carrier, assigning uplink control channel resources in the uplink FDD carrier to the terminal device according to the associations, and transmitting data on said downlink FDD carrier and/or TDD carrier, to be received by the terminal device.

Abstract: A transmitting apparatus for a wireless communication system, where the wireless communication system includes an OFDM based waveform corresponding to a plurality of pre-defined subcarrier spacing values including at least a first subcarrier spacing value ?f1 and at least a second subcarrier spacing value ?f2. The transmitting apparatus includes a processor and a transmitter where the processor is configured to generate a signal S1 that is a NSF time repetition of an another signal S2. A duration of the another signal S2 is 1/?f2, NSF=?f2/?f1 is an integer greater than 1, and the transmitter is configured to transmit a symbol comprising S1.

Abstract: Embodiments are provide for communicating data or other non-control information messages within a downlink control channel directly, rather than in a data channel or broadcast channel. Thereby, radio resource utilization can be substantially improved in the cellular system, such as in the case of transmitting smaller data packets. In an embodiment, a transmitter arranges a set of time-frequency radio resources, associated with a downlink control channel, for transmitting information other than control information sent on the downlink control channel. The transmitter then sends, on the set of time-frequency radio resources, a data information message comprising the information other than the control information. The information other than the control information comprises one of user-specific data information and broadcast data information. A receiver then receives on the downlink control channel, control information and the data information message.