Systems, methods, and circuitries are disclosed for generating demodulation reference signals (DM-RS). In one example, a method for a user equipment (UE), includes receiving a configuration of a plurality of bandwidth parts (BWPs) configured with respective numerologies; generating a first pseudo-random sequence based at least in part on one or more of a physical cell ID, a virtual cell ID, a symbol index, a slot index, a frame index, a scrambling ID, or a UE ID for generation of a first DM-RS sequence, wherein a initialization seed for the first pseudo-random sequence is based on a scrambling ID and a slot index, wherein, for the plurality of BWPs a respective scrambling ID is associated with each BWP, and wherein the slot index is defined in accordance with the numerology of the associated BWP; and mapping, for a first BWP, the first DM-RS sequence to at least one DM-RS symbol.

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may perform an operation to obtain one or more channel state information (CSI) resources (e.g., new resources) from a set of resources indicated by a CSI report configuration. For example, the UE may aggregate or separate respective resources of the set of resources to obtain one or more CSI resources. The operation may be performed based on a first number of antenna ports associated with each resource of the set of resources and a second number of antenna ports associated with a codebook configuration. Thus, performing the operation may result in the UE forming one or more CSI resources for measuring CSI on the one or more CSI resources. The UE may transmit a CSI report based on measuring the CSI for a set of reference signals received on the one or more CSI resources.

The present disclosure relates to communication methods and systems for converging a 5.sup.th-Generation (5G) communication system for supporting higher data rates beyond a 4.sup.th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. Disclosed are reliable transmission methods for ultra-reliable low-latency communication (URLLC) in 5G next-generation core networks, which provide methods of redundant transmission through a plurality of transmission paths in order to perform transmission between radio access networks (RANs) through ultra-reliable transmission in the core network. The disclosure also provides simple multiple path transmission and multiple path transmission using an intermedia user plane function (I-UPF) according to the deployment environment of a network router.

A terminal according to one aspect of the present disclosure includes: a receiving section that receives a signal over a plurality of resources; and a control section that multiplies the signal thus received, by a value in an orthogonal cover code (OCC) for each resource in the plurality of resources, and measures a channel state information (CSI)—reference signal (RS) obtained by adding results of the multiplication. The resource is a period longer than a resource block or a symbol. According to one aspect of the present disclosure, a CSI-RS transmitted by using a larger number of CSI-RS ports can be appropriately measured.

A terminal is disclosed including a receiver configured to receive a physical control channel (PUCCH) resource configuration; and a processor configured to use different base sequences for a PUCCH between a first hop and a second hop if the PUCCH resource configuration indicates that intra-slot frequency hopping is enabled, a starting physical resource block (PRB) that is a first PRB in the first hop, and a second hop PRB that is a first PRB in the second hop, even when the second hop PRB is equal to the starting PRB. In other aspects, a radio communication method for a terminal and a base station are also disclosed.

Systems, methods, and circuitries are disclosed for determining Precoding Resource Block Groups (PRGs). In one example, a processor of a base station (BS) is configured to determine a plurality of PRGs that includes a number N consecutive Physical Resource Blocks (PRBs) over which a same precoder assignment is used, starting from a reference PRB. The plurality PRGs include a first boundary PRG, a second boundary PRG, and one or more other PRGs. The first boundary PRG is located at an upper boundary of a bandwidth part. The first boundary PRG comprises fewer than N PRBs when the upper boundary of the bandwidth part is not aligned with a PRG boundary. The second boundary PRG comprises fewer than N PRBs when a lower boundary of the bandwidth part is not aligned with a PRG boundary. A downlink data channel is transmitted to a UE in accordance with the precoder assignments.

Embodiments of the present invention provide a user equipment and a base station that may be used in a wireless communication system, or a method executed by a user equipment, a method executed by a base station. The user equipment in the embodiments of the present invention includes: an obtaining unit, configured to obtain a basic sequence table, the basic sequence table comprising at least two sequences; a receiving unit, configured to receive sequence selection information related to an operation to be executed by the user equipment; and a control unit, configured to determine an operation sequence for the operation according to the basic sequence table and the sequence selection information.

Methods and systems that enable payload data to be spread over a number of a plurality of sub-carriers for wireless transmissions between Access Points (AP) and stations (STA) in a WLAN. The AP receives each STA's status information, and controls an amount of spreading of the payload data that can flexibly and variably takes into account the desired amount of peak power consumption, the required data rate, and the channel conditions. Based on these factors, the AP determines a number of sub-carriers for each STA that will be used to carry the spread payload data. Example embodiments can address high power peak consumption, data rate inflexibility and inefficient spectrum communication as found in conventional wireless systems.

A method and apparatus for transmitting and receiving signal in communication system. A method of a base station includes: configuring frequency spreading sequences each of which corresponds to a transmission starting time point; configuring time spreading sequences each of which corresponds to a terminal; and transmitting information on the frequency spreading sequences and the time spreading sequences to a plurality of terminals, wherein one of the frequency spreading sequences and one of the time spreading sequences are assigned to each of the plurality of terminals.

A terminal is disclosed including a receiver configured to receive a physical control channel (PUCCH) resource configuration; and a processor configured to use different base sequences for a PUCCH between a first hop and a second hop if the PUCCH resource configuration indicates that intra-slot frequency hopping is enabled, a starting physical resource block (PRB) that is a first PRB in the first hop, and a second hop PRB that is a first PRB in the second hop, even when the second hop PRB is equal to the starting PRB. In other aspects, a radio communication method for a terminal and a base station are also disclosed.