Abstract: Methods, apparatus and systems for enabling interference avoidance, for example from self and neighboring interference are disclosed. In one representative method implemented in a Wireless Transmit/Receive Unit (WTRU) using time-frequency (TF) resources in first and second directions, the method includes comprising TF resource muting or symbol muting, by the WTRU, one or more TF resources for communication in the first direction based on information associated with a communication in the second direction or subframe shortening, by the WTRU, by one or more TF resources for communication in the first direction based on information associated with a communication in the second direction.

Abstract: Various embodiments herein provide physical uplink control channel (PUCCH) designs for discrete Fourier transform-spread-orthogonal frequency-division multiplexing (DFT-s-OFDM) waveforms for systems operating above the 52.6 GHz carrier frequency. Some embodiments of the present disclosure may be directed to phase tracking reference signal (PT-RS) design for PUCCH with carrier frequencies above 52.6 GHz. Other embodiments may be disclosed and/or claimed.

Abstract: Certain aspects provide a method for wireless communication by a user-equipment (UE). The method generally includes receiving first downlink (DL) control information (DCI) for scheduling resources in time in a system frame for transmission of one or more uplink (UL) data channels and hybrid automatic request (HARQ) signaling for acknowledging whether one or more downlink data channels have been successfully decoded, the one or more UL data channels and the HARQ signaling being configured based on a UL to DL resource ratio associated with a time-division duplex (TDD) subframe configuration. In certain aspects, the UE generates the one or more UL data channels and the HARQ signaling, and transmits the UL data channels and the HARQ signaling using the scheduled resources and in accordance with the TDD subframe configuration.

Abstract: A method for determining a carrier center frequency in a wireless communications system and apparatus is provided. The method includes: determining, a carrier center frequency used by a base station and UE to communicate, according to a frequency band starting frequency, an absolute radio frequency channel number, a frequency band offset, and a relative radio frequency channel number. According to this application, a time for searching for a cell by a terminal can be reduced, power consumption of the terminal can be reduced, and a battery life can be extended.

Abstract: Methods and devices are provided for transmitting and receiving hybrid automatic repeat request acknowledgement (HARQ-ACK) information in a wireless communication system. Higher layer signaling is received that includes at least one of information indicating whether to apply HARQ-ACK spatial bundling to HARQ-ACK information to be transmitted on a physical uplink control channel (PUCCH) or information indicating whether to apply HARQ-ACK spatial bundling to HARQ-ACK information to be transmitted on a physical uplink shared channel (PUSCH). At least one HARQ-ACK information bit corresponding to downlink data received in at least one cell, is determined based on the higher layer signaling. HARQ-ACK information corresponding to the determined at least one HARQ-ACK information bit is transmitted on at least one of the PUCCH or the PUSCH.

Abstract: There is disclosed a method of operating a user equipment in a radio access network. The method includes transmitting feedback control signaling, the feedback control signaling representing a number I of information bits. The I information bits are encoded with a code rate based on a code rate indication. The disclosure also pertains to related devices and methods.

Abstract: Methods, systems, and devices for wireless communication are described. A wireless device may identify multiple regions within a subframe, such as one or more uplink regions, one or more downlink regions, and a guard region. The wireless device may identify and communicate during each region based on a timing relationship between the downlink region and the uplink region. For example, the device may expect hybrid automated repeat request (HARQ) feedback for one downlink region in the same subframe based on the proximity to the next uplink region. Another downlink region may not have HARQ feedback in the same subframe. Similarly, uplink regions may or may not be scheduled within the same subframe.

Abstract: This disclosure relates to wireless communication formats that avoid conflicts in message transmissions. In one implementation, conflicts are avoided by determining that transmitting the uplink message according to a first transmission format will result in a conflict, and responsively determining to transmit the uplink message according to a second transmission format. In another implementation, conflicts are avoided by waiting to transmit a message part until a next time unit of a physical channel that is not conflicted. In another implementation, conflicts are avoided by configuring time units of a second physical channel relative to time units of a first physical channel according to an uplink time unit offset.

Abstract: Provided is a method of transmitting a Physical Uplink Shared Channel (PUSCH) in a special subframe by a User Equipment (UE). The method includes receiving an Uplink (UL) grant from a base station, the UL grant being included in a downlink time period of Time Division Duplex (TDD) cell, wherein the TDD cell having TDD UL/DL configuration 1, 2 or 6; determining a resource in an Uplink Pilot Time Slot (UpPTS) of a special subframe of the TDD cell to transmit a PUSCH associated with the received UL grant, wherein the special subframe, having subframe number 1 or 6, consists of a Downlink Pilot Time Slot (DwPTS), a guard period (GP), and the UpPTS; transmitting, from the UE, the PUSCH mapped to the resource in the UpPTS; and receiving a Physical Hybrid Automatic Repeat Request Indicator Channel (PHICH) responsive to the PUSCH.

Abstract: Channel state determination is performed at a user equipment (UE) of a mobile network. The UE determines one or a plurality of time intervals that may be used for channel measurements, performs a plurality of signal power measurements associated each to one of the time intervals to be used for channel measurement and generates a channel state information as a function of the plurality of the signal power measurements. Information comprising an indication of a plurality of time intervals that may be used for received signal power measurements is generated and sent from an access node (eNB) to the UE. The eNB evaluates a measurement report, received from the UE, that comprises received signal power measurements associated each to one of the time intervals.

Abstract: A user equipment (UE) is described. The UE includes receiving circuitry configured to receive a first parameter. The receiving circuitry is also configured to receive a second parameter. The UE also includes transmitting circuitry configured to perform, based on the first parameter, the first PUCCH repetitions in first multiple slots. The transmitting circuitry is also configured to perform, based on the second parameter, the second PUCCH receptions in second multiple slot. For a case that the first PUCCH repetitions collide with the second PUCCH receptions, a priority for different types of uplink control information (UCI) is applied. Hybrid automatic repeat request-acknowledgment (HARQ-ACK) has a higher priority than a scheduling request (SR) and channel state information (CSI). The SR has a higher priority than the CSI.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may communicate with a base station using a beamforming configuration, according to a transmission configuration indicator (TCI) configuration. The UE may receive a message including a TCI configuration. The UE may determine based on the TCI configuration, a TCI pool for a TCI state type of a set of TCI state types and a set of CCs. The UE may then perform the wireless communication via a directional beam based on the TCI pool for the TCI state type and the set of component carriers (CCs).

Abstract: Generally, the described techniques provide for a base station transmitting an indication of a set of one or more available channels to a user equipment (UE). The base station may transmit to the UE a first downlink burst using a first channel and a first frame period. In some cases, the base station may detect interference associated with the first downlink burst, for example, by performing a listen-before-talk (LBT) procedure or through an interference management resources (IMR) procedure in which the base station transmits reference signal signals to the UE that the UE may use to return a report on measured interference. If the base station detects interference, the base station may transmit to the UE an instruction to switch to a second channel and a second frame period, where the second channel may be selected from the set of one or more available channels.

Abstract: Certain aspects may be implemented in a method for wireless communication. The method generally includes determining a counter downlink assignment index (cDAI) to be included in each of a plurality of downlink control information (DCI), each of a first subset of the plurality of DCI being on a control channel, and each of a second subset of the plurality of DCI being on a data channel, each of the first subset of the plurality of DCI scheduling one of the data channels, and wherein each of the control channels and the data channels is on a cell of a plurality of cells, the determination of the cDAIs being based on order of the cell, with respect to the plurality of cells, on which each of the cDAIs is to be transmitted; generating and outputting for transmission the control channels and data channels in accordance with the determination.

Abstract: Radio-frequency front-end circuit includes: first transfer circuit that transfers a 4G signal, a first antenna terminal connected to a first antenna, a second antenna terminal connected to a second antenna, and a switch that includes a first selection terminal and a second selection terminal. The first selection terminal is connected to the first transfer circuit, and the second selection terminal is connected to a second transfer circuit that transfers a 5G signal. The switch: when the first antenna is high in antenna sensitivity, connects the first antenna terminal to the first selection terminal, and connects the second antenna terminal to the second selection terminal; and when the second antenna is high in antenna sensitivity, connects the first antenna terminal to the second selection terminal, and connects the second antenna terminal to the first selection terminal.

Abstract: Provided is a terminal apparatus that, when two terminals having mutually different subframe structure patterns are coexistent, can suppress DCI scheduling constraints of those terminals in a base station. In a terminal, a signal separation unit separates, from a received signal, both a response signal assigned to a first resource determined on the basis of a number of resources associated with the first subframes in which the signal was received and downstream control information assigned to a second resource. It should be noted that at a timing when both a first structure pattern that has been set in the terminal and a second structure pattern that has been set in another terminal that cannot change the setting of the structure pattern are the first subframes, the signal separation unit uses a number of resources associated with the first subframes of the second structure pattern.

Abstract: Systems and methods for triggering CSI reporting on PUCCH are described herein. A network node transmits a downlink-related control message including a Channel State Information (CSI) request field and a Physical Uplink Control Channel (PUCCH) resource indicator. A wireless device receives the control message and determines to trigger a CSI report in accordance with the CSI request field and the PUCCH resource indicator.

Abstract: The purpose of the present invention is to avoid ACK/NACK collision in a system in which E-PDCCH control information is transmitted, increase the utilization efficiency of ACK/NACK resources, and suppress unnecessary PUSCH band reduction. A wireless communications terminal having a configuration comprising: a reception unit that receives control signals including ACK/NACK indexes, via an expanded physical downlink control channel; a control unit that determines, on the basis of the ACK/NACK indexes, whether to use a dynamically allocated dynamic ACK/NACK resource or a specified resource specified beforehand, to send downlink data ACK/NACK signals; and a transmission unit that sends the ACK/NACK signals using the dynamic ACK/NACK resource or the specified resource, as determined.

Abstract: Disclosed are a communication technique for merging, with IoT technology, a 5G communication system supporting a data transmission rate higher than a 4G system, and a system therefor. The present disclosure can be applied to intelligent services (for example, smart home, smart building, smart city, smart car or connected car, healthcare, digital education, retail, security and safety related services, and the like) on the basis of 5G communication technology and IoT-related technology.

Abstract: The present invention relates to a wireless communication system. More specifically, the present invention relates to a method and a device for handling for Bandwidth Part operation in wireless communication system, the method comprising: starting a timer related to a downlink (DL) bandwidth part (BWP), when an active BWP for a serving cell is switched to the DL BWP; wherein DL semi-persistent scheduling (SPS) resources are configured on the DL BWP and uplink (UL) SPS resources are configured on a UL BWP related with the DL BWP; transmitting UL data on one of the UL SPS resources or receiving DL data on one of the DL SPS resources; and restarting the timer related to the DL BWP when the UL data is transmitted on the UL SPS resource or the DL data is received in the DL SPS resource.

Abstract: One or more embodiments provide a method implemented in a user equipment (UE) used in a wireless communications system. The method includes transmitting an indication to a base station that the UE is capable of transmitting on a single uplink carrier frequency and downlink carrier aggregation. The method also includes receiving an uplink carrier frequency switching pattern from the base station. The method also includes switching uplink carrier frequencies based on the uplink carrier frequency switching pattern.

Abstract: A method for disconnecting a wireless time-division duplex communication link, said time-division duplex communication link being between a first node transmitting during time slots allocated to said first node and a second node transmitting during separate time slots allocated to said second node, said first node transmitting at a respective one of a plurality of frequency bands during each of said time slots allocated to said first node, said method may include sub-dividing a time slot allocated to said first node into consecutive time intervals; and disrupting communication between said first node and said second node by transmitting, using a transmitter, respective interference signals during at least some of said time intervals of the time slot to provide an aggregated disconnect signal of the time slot, each of said interference signals being transmitted on one of said plurality of frequency bands, wherein for at least two of said time intervals said interference signals are transmitted on different fre

Abstract: Disclosed are a method for performing uplink transmission or reception in a wireless communication system and a device therefor. Specifically, a method for performing uplink transmission by a terminal in a wireless communication system may comprise the steps of: receiving, from a base station, a configuration relating to a beam association between a resource in a first frequency band and a resource in a second frequency band; allocating, by the base station, the resource in the first frequency band to the terminal, wherein the first frequency band does not overlap with the second frequency band; switching the first frequency band to the second frequency band; allocating, by the base station, the resource in the second frequency band to the terminal; and on the basis of the configuration relating to the beam association, performing the uplink transmission on the resource in the second frequency band.

Abstract: A wireless transmit/receive unit (WTRU) may monitor a common physical downlink control channel (PDCCH) search space for a downlink control information (DCI) signal and a first radio network terminal identifier (RNTI). In an example, the DCI signal may include an uplink (UL)/downlink (DL) configuration indication. In a further example, the first RNTI may be associated with UL/DL configuration information. The WTRU may transmit UL data or receive DL data based on the received UL/DL configuration indication. In another example, the DCI may include a plurality of UL/DL configuration indications. In an additional example, a plurality of WTRUs may monitor the common PDCCH search space for the first RNTI. Also, the UL/DL configuration indication may indicate UL/DL configuration information on a symbol basis. Further, the WTRU may receive a second RNTI which is associated with the UL/DL configuration indication.

Abstract: A user terminal according to one aspect of the present disclosure includes: a receiving section that receives measurement signals of a first cell and a second cell; and a control section that, when at least one of handover, cell re-selection and a cell addition procedure is performed based on a measurement result that uses the measurement signals, determines whether or not to assume that timings of radio frames and numbers assigned to the radio frames match between the first cell and the second cell.

Abstract: The frequency band of an uplink channel of the first node is identical to the frequency band of a downlink channel of the second node. The frequency band of the uplink channel of the first node is different from the frequency band of a downlink channel of the first node. Uplink data from the terminal is received through the uplink channel of the first node; when the terminal is an intra-frequency terminal, downlink data is transmitted to the terminal through the downlink channel of the second node; and when the terminal is an inter-frequency terminal, downlink data is transmitted to the terminal through the downlink channel of the first node. The wireless communication method is compatible with intra-frequency terminals and inter-frequency terminals, and the inter-frequency terminal transmits uplink data through the first node and receive downlink data through the second node, thus implementing duplex communication and improving communication efficiency.

Abstract: Disclosed are techniques for wireless communication. In an aspect, a user equipment (UE) engaged in a positioning session with a plurality of transmission-reception points (TRPs) receives a downlink positioning reference signal (DL-PRS) configuration specifying one or more DL-PRS resource sets of a DL-PRS instance, wherein all DL-PRS resources of the one or more DL-PRS resource sets of the DL-PRS instance are scheduled within a time window, and receives an uplink PRS (UL-PRS) configuration specifying one or more UL-PRS resource sets, wherein all of the one or more UL-PRS resources are scheduled within the time window. The UE may perform, during the time window, measurements of DL-PRS transmissions on one or more DL-PRS resources of the one or more DL-PRS resource sets, and transmit, during the time window, at least one UL-PRS on the one or more UL-PRS resources.

Abstract: A user equipment (UE) may assess a radio link quality of a plurality of frames for communication, via the interface to the RF circuitry, with a radio access network (RAN) node. When the radio link quality of a frame, of the plurality of frames, is below an out-of-sync (OOS) threshold, the UE may indicate that the frame is OOS. When the radio link quality of a frame, of the plurality of frames, is above an in-sync (IS) threshold that the frame is IS. Additionally, or alternatively, the UE may process information, received from the RAN node indicating a partial subframe, of a subframe, to be used to transmit uplink control information (UCI) to the RAN node. The UE ma also perform UCI mapping for using of the partial subframe to transmit UCI via a physical uplink control channel (PUSCH), and proceed by using the partial subframe to communicate the UCI to the RAN node.

Abstract: Methods, systems, and devices for wireless communications are described. A device (e.g., a base station or a user equipment (UE)) may identify a sequence length corresponding to a number of resource blocks, and select a modulation scheme based on the sequence length. The device may select, from a set of sequences associated with the modulation scheme, a sequence having the sequence length. In some examples, the set of sequences may include at least one of a set of time domain phase shift keying computer-generated sequences or a set of frequency domain phase shift keying computer-generated sequences. The device may generate a reference signal for a data transmission based on the sequence and transmit the reference signal within the number of resource blocks.

Abstract: Wireless communications systems and methods related to sidelink communications in a TDD system are provided. A first user equipment (UE) may receive from a base station (BS), a time-division-duplexing (TDD) configuration. The first UE may select a first TDD configuration from a set of configured TDD configurations based on the TDD configuration. Additionally, the first UE may transmit to a second UE, an indication of the first TDD configuration. The first and the second UEs may communicate a sidelink communication based on the first TDD configuration. Other features are also claimed and described.

Abstract: An apparatus of a Fifth Generation NodeB (gNB) to operate in a License Assisted Access (LAA) system configures a transmission initiation time interval contention window size (CWS) of N number of subframes between Category 4 Listen Before Talk (LBT) uplink (UL) transmissions by a user equipment (UE) operating in the LAA system, and a memory to store a value of N which can have a value 6 or greater or 10 or greater. An apparatus of a UE to operate in an LAA system decodes a configuration from the gNB of a transmission initiation time interval contention CWS of N number of subframes between Category 4 LBT UL transmissions in the LAA system. The CWS is increased to a next higher value when an UL grant or an autonomous UL (AUL) downlink feedback indicator (DFI) is not received before the expiration of a timer.

Abstract: A radio frequency module includes: a first antenna connection terminal; a second antenna connection terminal different from the first antenna connection terminal; a first filter having a passband of a first frequency range including a first communication band allocated as a TDD communication band; a second filter having a passband of a second frequency range including a second communication band allocated as a TDD communication band; and a third filter having a passband of a third frequency range including a third communication band allocated as a TDD communication band. The third frequency range is located between the first frequency range and the second frequency range. The first and second filters are both connected to one of the first antenna connection terminal and the second antenna connection terminal. The third filter is connected to the other of the first antenna connection terminal and the second antenna connection terminal.

Abstract: A wireless communication method, device and storage medium are provided. The method includes that resource configuration information is received, the resource configuration information is configured to determine multiple resource units divided in the frequency and the time of a specific carrier and type information of each resource unit, the type information of each resource unit indicates that the resource unit is one of an uplink resource unit, a downlink resource unit, or a protection resource unit; and communication is performed on the particular carrier based on the resource configuration information.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a base station, control signaling indicating a set of resources for transmitting a set of uplink shared channel transmissions and a set of demodulation reference signals (DMRSs) having phase coherence across a set of transmission time intervals (TTIs). The UE may receive, from the base station, a control message indicating a cancellation of a first resource of the set of resources. The UE may determine one or more phase-continuity conditions for the set of resources based on receiving the control message indicating the cancellation of the first resource. The UE may transmit, in remaining resources of the set of resources, at least a subset of the set of uplink shared channel transmissions and at least a subset of the set of DMRSs in accordance with the one or more phase-continuity conditions.

Abstract: This disclosure provides systems, methods, and apparatuses, including computer programs encoded on computer storage media, for wireless communication. In one aspect of the disclosure, a method of wireless communication performed by a user equipment (UE) includes receiving, from a base station, a scheduling downlink control information (DCI) message in a physical downlink control channel (PDCCH). The scheduling DCI message indicates a resource allocation for a scheduled DCI message in a subsequent physical downlink shared channel (PDSCH). The method further includes receiving, from the base station, the scheduled DCI message within the subsequent PDSCH. Other aspects and features are also claimed and described.

Abstract: Aspects of the present disclosure include methods, apparatuses, and computer readable media for configuring sounding reference signal (SRS) transmissions on subband full-duplex (SBFD) slots. In an example, a user equipment (UE) may determine a change from a first uplink (UL) bandwidth pattern to a second UL bandwidth pattern occurred within in a sub-band full duplex (SBFD) bandwidth. The UE may also configure one or more settings for a sounding resource signal (SRS) transmission based on the second UL bandwidth pattern. The UE may also transmit, to a base station, the SRS transmission according to the one or more settings for the SRS transmission.

Abstract: In an aspect, a UE measures interference from one or more neighbor base stations on a set of resources over a period of time, and determines an interference burst dynamic associated with the set of resources based on the measured interference over the period of time. The UE transmits an interference measurement report comprising an indication of the interference burst dynamic to a serving base station of the UE. The serving base station performs at least one action based in part upon the prediction.

Abstract: The present disclosure provides an uplink signal transmission method, a terminal, and base station. The terminal receives, from a base station, control information for an uplink scheduling, the control information including information indicating a reference starting position of a physical uplink shared channel (PUSCH); and transmits, to the base station, data based on the information indicating the reference starting position of the PUSCH. The information indicating the reference starting position of the PUSCH includes a starting symbol and a starting position preceding the starting symbol.

Abstract: Aspects of the present disclosure provide apparatus, methods, processing systems, and computer readable mediums for determining timing advances (TAs) for use in sidelink (SL) communications. A method that may be performed by a transceiver (TX) user equipment (UE) includes applying a first TA when transmitting at least a first SL transmission to a receiver (RX) UE and applying a second TA when transmitting at least a second SL transmission to the RX UE.

Abstract: Described herein are techniques and systems for selectively transitioning communication sessions from TDD to FDD based on service type and uplink quality. The selective transitioning of communication sessions from TDD to FDD can provide higher and more reliable uplink throughput to UEs, as needed. An example process includes determining, during setup of a communication session for a UE using TDD, a type of service associated with the communication session, and determining that the type of service is a predefined service of a set of predefined services. The example process may further include determining a value indicative of a quality associated with an uplink connection established by the UE, determining that the value fails to satisfy a threshold value, and transitioning, based at least in part on the value failing to satisfy the threshold value, the communication session to a target base station to finish the setup using FDD.

Abstract: A system and method for time division multiplexing using different radio access technologies is disclosed. In one embodiment, a method performed by a first communication node includes: identifying a time division multiplex pattern that associates a plurality of time domain resources with: one of an uplink signal and a downlink signal, and one of at least two radio access technologies; receiving the uplink signal using at least one first associated time domain resource; and transmitting the downlink signal using at least one second associated time domain resource, wherein the plurality of time domain resources are sequential, and wherein at least one first and second associated time domain resources are associated with different radio access technologies.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive first downlink control information corresponding to a first group of downlink transmissions and second downlink control information corresponding to a second group of downlink transmissions. The UE may calculate a number of information bits for a feedback message including first feedback for one or more downlink transmissions of the first group and second feedback for one or more downlink transmissions of the second group. The number of information bits may include first information bits of the first feedback and second information bits of the second feedback. The UE may identify a transmission power for the feedback message based on the calculated number of information bits. The UE may transmit the feedback message including the first feedback and the second feedback using the identified transmission power.

Abstract: A wireless device may communicate via a primary cell comprising a primary control channel, and via a secondary cell comprising a secondary control channel, and may signal a scheduling request for the transmission of information via either of the control channels. A scheduling request prohibit timer may be started for the transmission via either of the control channels.

Abstract: This disclosure provides methods, devices and systems for channel sounding for wireless communications. Some implementations more specifically relate to scheduling sounding reference signal (SRS) resource sets for wireless devices having more than 4 receive (RX) antenna ports. In some implementations, a base station may determine an antenna switching capability of a user equipment (UE). The antenna switching capability indicates a number of RX antenna ports of the UE. The base station schedules a number of SRS resource sets for the UE based at least in part on the number of RX antenna ports in excess of four. For example, the number of RX antenna ports may be equal to 8. As another example, the number of RX antenna ports may be equal to 6. The base station further receives, from the UE, uplink transmissions of one or more SRS resources for each of the scheduled SRS resource sets.

Abstract: An HARQ-ACK feedback method, a terminal and a network side device are provided. The method includes: when a HARQ-ACK of a PDSCH is required to be transmitted on a PUSCH scheduled by uplink DCI in a multiplexing mode, if the uplink DCI includes a DAI, determining an HARQ-ACK feedback codebook transmitted on the PUSCH, based on at least one of a judgement result of whether the PDSCH scheduled before the uplink DCI is required to transmit the HARQ-ACK on the PUSCH in a multiplexing mode or the DAI, and a maximum quantity of PDSCHs capable of being transmitted after the uplink DCI.

Abstract: The present invention relates to a wireless communication system, and more particularly, to a method of transmitting and receiving a radio signal and an apparatus therefor. The method comprises the steps of receiving data in a time unit #n of a first frequency band and transmitting A/N in a time unit #m+k of a second frequency band in response to the data. In this case, the first frequency band and the second frequency band have different subcarrier spacing and a time unit #m of the second frequency band indicates the last time unit among a plurality of time units of the second frequency band corresponding to the time unit #n of the first frequency band.

Abstract: A configuration to enable a UE to transmit an enhanced preamble to initiate a RACH procedure to improve coverage of PRACH without an excessive increase in usage of PRACH resources. The apparatus transmits, to a base station, a preamble to initiate a RACH procedure. The apparatus monitors for at least one RAR, from the base station, during a RAR window in response to the transmitted preamble. The apparatus transmits, to the base station, an enhanced preamble to initiate the RACH procedure if the at least one RAR is not received during the RAR window.

Abstract: The present invention relates to a method and an apparatus for transmitting and receiving a signal by a terminal in a wireless communication system supporting reconfiguration of wireless resources. Specifically, the method comprises a step of monitoring wireless resource reconfiguration control information on a number of sub-frames within a set monitoring cycle in order to reconfigure wireless resources, wherein a first uplink-downlink setting in accordance with wireless resource reconfiguration control information is valid only if equally detected on a number of sub-frames, and wherein a number of sub-frames are sub-frames set to monitor wireless resource reconfiguration control information of a terminal.

Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for identification of a slot format for a set of slots where at least one slot format of the set is an subband full-duplex slot (e.g., includes uplink and downlink resources separated in a frequency domain). The base station may transmit one or more semi-persistent scheduling configurations to a UE. The UE may identify semi-persistent scheduling occasions for receiving a downlink communication based at least in part on the SPS configurations matching the format of the slot, the periodicity of the slot formats of the set, or other considerations. The UE and the base station may communicate based at least in part on the determined semi-persistent scheduling occasions.

Abstract: Disclosed in some examples is a method for providing a HARQ response in an LTE network for a PUCCH format 1b. The method includes receiving one or more downlink assignments of a bundling window over a wireless downlink control channel; setting a reception status for each sub-frame of a downlink data channel in the bundling window based on whether the sub-frame on the downlink data channel was associated with a particular one of the received downlink assignments and based upon whether the sub-frame was successfully received; setting a reception status of sub-frames of the downlink data channel in the bundling window that did not have a corresponding downlink assignment to a predetermined value; and transmitting a response, the response based upon the reception statuses set by the response module.