Patent classifications
H04L27/2601
Apparatus and method for transmitting and receiving asynchronous signal in wireless communication system
The present disclosure relates to a communication method and system for converging a 5th-generation (5G) communication system or a 6th-generation (6G) communication system for supporting higher data rates beyond a 4th-generation (4G) system. The disclosure relates to an operating method of a terminal in a wireless communication system. The method may include: receiving configuration information about a plurality of signatures for non-orthogonal multiple access (NOMA) from a base station, the plurality of signatures including first signatures and second signatures; identifying a first signature sequence for the terminal, based on the configuration information; and transmitting data, configured based on the identified first signature sequence, to the base station, wherein the first signature sequence may be configured by repeating the first signatures, and the first signatures may be respectively applied to consecutive symbols of the data.
Channel measurement techniques in discontinuous reception scenarios
Methods, systems, and devices for wireless communications are described for configuring a user equipment (UE) for reference signal measurement while operating according to a discontinuous reception (DRX) configuration. The DRX configuration may include periodic DRX ON-durations, during which the UE is to be in an active mode for reception and transmission of signals, and between which the UE may transition to a low-power inactive mode. One or more reference signals may be scheduled for transmission by the base station during periods in which the UE may be in the inactive mode, and the UE may skip monitoring one or more of the reference signals while in the inactive mode. For one or more reference signal occasions, the UE may determine, based at least in part on a change in a channel quality metric, to be in a limited active mode in order to measure the reference signal.
PUCCH repetition before RRC connection setup
Methods, systems, and devices for wireless communication are described. A wireless device may determine a Physical Uplink Control Channel (PUCCH) resource for a PUCCH transmission prior to receiving a dedicated PUCCH resource configuration, determining a repetition level for the PUCCH transmission, and transmit the PUCCH transmission, on at least the PUCCH resource, according to the repetition level. A base station may transmit, to a user equipment (UE), information scheduling a Physical Uplink Control Channel (PUCCH) transmission on a PUCCH resource prior to configuring dedicated PUCCH resources for the UE, determine a repetition level for the PUCCH transmission, transmit, to the UE, an indication of the repetition level, and receive, according to the repetition level, a first repetition of the PUCCH transmission on the PUCCH resource and other repetitions of the PUCCH transmission.
Wireless communication apparatus having dynamic transmission bandwidth allocation mechanism and dynamic transmission bandwidth allocation method thereof
The present disclosure discloses a dynamic transmission bandwidth allocation method having dynamic transmission bandwidth allocation mechanism used in a wireless communication apparatus is provided that includes the steps outlined below. Interference information and transmission ability information of remote wireless communication apparatuses is retrieved. A predetermined transmission bandwidth range that includes resource units is set. The remote wireless communication apparatuses are allocated in the predetermined transmission bandwidth range to generate an allocation result. Whether the allocation result satisfies resource unit allocation criteria is determined. When the allocation result does not satisfy the resource unit allocation criteria, the predetermined transmission bandwidth range is shrunk to another allocatable transmission bandwidth range to determine whether the allocation result satisfies the resource unit allocation criteria. When the allocation result satisfies the resource unit allocation criteria, the remote wireless communication apparatuses are allocated according to the allocation result to perform communication thereto through a communication circuit.
COVERAGE ENHANCEMENT AND CONFIGURATION FOR TWO-STEP RACH IN NON-TERRESTRIAL NETWORKS
Aspects are provided which allow coverage enhancement and support in NTNs for repetition, frequency hopping, and antenna switching during msgA transmissions based on a preamble-to-PO mapping. In one aspect, the base station provides and the UE obtains a RACH configuration associating a preamble with at least one PO for two-step random access, where the PO spans a time interval greater than one slot. In another aspect, the base station provides and the UE obtains a RACH configuration associating a preamble with a plurality of POs for two-step random access. In a further aspect, the base station provides the UE a plurality of configurations each indicating a PO for two-step random access. In an additional aspect, the base station provides the UE a configuration indicating a guard band for a PO for two-step random access, where the guard band is indicated in units of subcarriers spanning less than one PRB.
UPLINK CONTROL CHANNEL REPETITION FACTOR INDICATION
Certain aspects of the present disclosure provide techniques for wireless communications by a user equipment (UE) includes receiving a downlink control information (DCI) scheduling a downlink transmission for the UE, the DCI comprising a physical uplink control channel (PUCCH) resource indicator (PRI) indicating an uplink resource for the UE to use to transmit feedback information regarding the downlink transmission; and transmitting, repeatedly a number of times, uplink control information different than the feedback information regarding the downlink transmission, wherein the number of times is based on the PRI.
Signal generation method, transmission device, reception method, and reception device
A signal generation method is used in a transmission device that transmits a plurality of transmission signals from a plurality of antennas at the same frequency and at the same time, in the case where larger power change is performed on a first transmission signal than on a second transmission signal during generation process of the first transmission signal and the second transmission signal, the first transmission signal and the second transmission signal are mapped before the power change such that a minimum Euclidian distance between possible signal points for the first signal is longer than a minimum Euclidian distance between possible signal points for the second signal.
Multiband scheduling for wake up radio
Receiving, at a receiver, a wake-up signal over a wireless communications channel, the wake-up signal including a multiband wake-up-radio (WUR) data unit that includes a plurality of WUR frames, each WUR frame occupying a respective predefined bandwidth within an overall bandwidth of the WUR data unit; filtering a selected WUR frame from the plurality of WUR frames according to the predefined bandwidth occupied by the selected WUR frame; and recovering a set of bits from the selected WUR frame by assigning a bit value to each of a plurality of waveform coded symbols included in the selected WUR frame based on a power distribution within each of the waveform coded symbols.
Apparatus and methods for TB PPDU alignment for multi-link triggered uplink access in a wireless network
Embodiments of the present invention prevent interference caused by the simultaneous transmission and reception of data in a constrained multi-link operation of a wireless network. According to one embodiment, first and second trigger frames are received from a wireless access point (AP) at a wireless station (STA) over first and second wireless links, respectively. First and second data frames are transmitted responsive to the first and second trigger frames over the first and second wireless links, respectively, when the difference between the ending time of the data frame transmitted responsive to the first trigger frame and the ending time of the second trigger frame is greater than a predetermined value to prevent interference.
Carrier interferometry transmitter
A transmitter in a wireless communication network comprises a Carrier Interferometry (CI) coder and a multicarrier modulator communicatively coupled to the CI coder. The CI coder encodes a plurality of data symbols with a plurality of CI codes to produce a plurality of CI symbol values, wherein each of the plurality of CI symbol values equals a sum of information-modulated CI code chips. Each information-modulated CI code chip equals a CI code chip multiplied by one of the plurality of data symbols. The modulator modulates each CI symbol value onto a different subcarrier frequency to produce a multicarrier signal.