Abstract: A wireless transmit/receive unit (WTRU) may receive a constellation symbol that includes indications that each are associated with a respective WTRU of a plurality of WTRUs. The WTRU may determine that a first weight associated with a first indication of the indications is different than a second weight associated with a second indication of the indications. The indications may comprise indications of bits modulated at a multi-user constellation bit division multiple access modulator (MU-CBDMAM).

Abstract: A method performed by a STA may comprise receiving data of a MU-HE-PPDU, from an AP. The MU-HE-PPDU may comprise a HE-SIG-A field, a first HE-SIG-B portion and a second HE-SIG-B portion. The first HE-SIG-B portion may be received on a first channel and the second HE-SIG-B portion may be received on a second channel which is different than the first channel. The first HE-SIG-B portion may include one or more STA identifiers.

Abstract: Systems, methods and instrumentalities are disclosed to enable time domain null-forming. An access point (AP) may be configured to send a channel training request to a station (STA). The AP may be configured to receive a channel training packet in response to the channel training request. The channel training packet may include a legacy long training field (LTF). The AP may estimate the channel. The channel estimation may be computed using the legacy LTF. The AP may compute a null-forming vector using the channel estimation. The AP may use the null-forming vector to precode the entire packet.

Abstract: Device, systems, and/or techniques for using sub-channel signaling information between an access point and a first station are disclosed. In one aspect, a method performed by a station (STA) includes: receiving, from a neighboring STA in an overlapping basic service set (OBSS), a physical (PHY) layer preamble that includes a signal field indicating a plurality of sub-bands and associated power thresholds for Uplink Orthogonal Frequency-Divisional Multiple Access (UL OFDMA) transmission, that are available for OBSS spatial reuse (SR) by the STA; and sending, to an AP with which the STA is associated, an UL OFDMA transmission using a sub-band of the plurality of sub-bands and an associated power threshold indicated in the signal field. Additional embodiments are disclosed.

Abstract: A STA may comprise a receiver configured to receive, from an AP, a first polling frame addressed to a broadcast address and sent to a plurality of STAs. The first polling frame may indicate a plurality of sub-channels. The STA may further comprise a transmitter configured to transmit, to the AP, a first PPDU indicating SNR information, on one or more sub-channels of the plurality of sub-channels, a SIFS after the first polling frame is received. The transmitter may be configured to transmit the first PPDU while a second PPDU is transmitted to the AP by another STA of the plurality of STAs, wherein the second PPDU is transmitted on one or more other sub-channels of the plurality of sub-channels.

Abstract: A WTRU may include a memory and a processor. The processor may be configured to receive beam grouping information from a gNB or transmission and reception point (TRP). The beam grouping information may indicate a group of beams that the WTRU may report using group-based reporting. The group-based reporting may be a reduced level of reporting compared to a beam-based reporting. The group-based report may include measurement information for a representative beam. The representative beam may be one of the beams in the group or represents an average of the beams in the group. Alternatively, the representative beam may be a beam that has a maximum measurement value compared to other beams in the group. The group-based report may include a reference signal received power (RSRP) for the representative beam and a differential RSRP for each additional beamin the beam group.

Abstract: Methods and systems for transmitting uplink control information and feedback are disclosed for carrier aggregation systems. A user equipment device may be configured to transmit uplink control information and other feedback for several downlink component carriers using one or more uplink component carriers. The user equipment device may be configured to transmit such data using a physical uplink control channel rather than a physical uplink shared channel. The user equipment device may be configured to determine the uplink control information and feedback data that is to be transmitted, the physical uplink control channel resources to be used to transmit the uplink control information and feedback data, and how the uplink control information and feedback data may be transmitted over the physical uplink control channel.

Abstract: Methods and apparatuses are described herein for full-duplex transmission opportunity discovery and transmission in a wireless 802.11 network. A station (STA) may receive a transmission opportunity (TxOP) setup frame from an access point (AP), the TxOP setup frame including information enabling the STA to transmit a first measurement frame and another STA to transmit a second measurement frame. The STA may transmit the first measurement frame to the other STA, receive the second measurement frame from the other STA, and transmit feedback to the AP based on the received second measurement frame. The STA may receive, based on the feedback, a trigger frame from the AP to communicate during a TxOP and receive, during the TxOP, downlink data from the AP.

Abstract: An access point (AP) may transmit a null data packet announcement (NDPA) with an indication of a resource unit of a bandwidth that feedback is requested. The AP may transmit a null data packet (NDP) for measurement of a channel quality for a resource unit of a bandwidth. The AP may transmit, based on a response, another feedback request for resource units of the bandwidth.

Abstract: Systems, procedures, and instrumentalities are disclosed for synchronizing a signal burst, signal design, and/or system frame acquisition. A synchronization signal (SS) block or burst may be received. The SS block or burst may include a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and/or a Physical Broadcast Channel (PBCH). A first cell ID may be determined and/or a plurality of SSS sequences may be generated. An m0 value (e.g., a first cyclic shift) may be determined from a set of m0 values, for example, based on the generated plurality of SSS sequences. An n1 value (e.g., a second cyclic shift) may be determined from a set of n1 values. A second cell ID may be determined, for example, based on the m0 value and the n1 value. A third cell ID may be determined, for example, based on the second cell ID and the first cell ID.

Abstract: Methods and apparatuses are described herein for multiple access schemes for Wireless Local Area Network (WLAN) with full-duplex radios. For example, an access point (AP), in response to receiving a request to send (RTS) from a first station (STA), may transmit a full-duplex clear to send (FD CTS) to the first STA and a full-duplex request to send (FD RTS) to a second STA. In response to transmitting the FD RTS to the second STA, the AP may receive a clear to send (CTS) from the second STA. The AP may transmit, to both the first STA and the second STA, a FD trigger frame that includes scheduling information to enables FD communication with the first STA for uplink (UL) data and the second STA for downlink (DL) data at a same time. The scheduling information may include timing information and channel information for the FD communication.

Abstract: Methods and systems for transmitting uplink control information and feedback are disclosed for carrier aggregation systems. A user equipment device may be configured to transmit uplink control information and other feedback for several downlink component carriers using one or more uplink component carriers. The user equipment device may be configured to transmit such data using a physical uplink control channel rather than a physical uplink shared channel. The user equipment device may be configured to determine the uplink control information and feedback data that is to be transmitted, the physical uplink control channel resources to be used to transmit the uplink control information and feedback data, and how the uplink control information and feedback data may be transmitted over the physical uplink control channel.

Abstract: An access point (AP) may transmit a null data packet announcement (NDPA) with an indication of a resource unit of a bandwidth that feedback is requested. The AP may transmit a null data packet (NDP) for measurement of a channel quality for a resource unit of a bandwidth. The AP may transmit, based on a response, another feedback request for resource units of the bandwidth.

Abstract: Maintaining time alignment with multiple carriers is contemplated. A group of uplink carriers (UL CC sets) that operate with a single Timing Advance (TA) may be determined, and a TA value may be applied to a specific UL CC set. A wireless transmit/receive unit's (WTRU) capability of using multiple TAs may define a group index of a few bits for each UL CC set. A TA Command received in a Random Access Response message may be used to apply the TA value to each UL carrier of the UL CC set. The WTRU may determine which UL CC set the TA value applies to based on which DL carrier the command was transmitted from. The WTRU may determine which UL CC set the TA value applies to based on the Group Index being explicitly provided in the command. The WTRU may release multi-CC configurations upon Time Alignment Timer (TAT) expiry.

Abstract: A STA may comprise a receiver configured to receive, from an AP, a first polling frame addressed to a broadcast address and sent to a plurality of STAs. The first polling frame may indicate a plurality of sub-channels. The STA may further comprise a transmitter configured to transmit, to the AP, a first PPDU indicating SNR information, on one or more sub-channels of the plurality of sub-channels, a SIFS after the first polling frame is received. The transmitter may be configured to transmit the first PPDU while a second PPDU is transmitted to the AP by another STA of the plurality of STAs, wherein the second PPDU is transmitted on one or more other sub-channels of the plurality of sub-channels.

Abstract: An access point (AP) in a high efficiency (HE) wireless local area network (WLAN) may transmit a message specifying to a group of stations a guard interval from one of two different guard intervals. The AP may receive responses from the group of stations with the specified one of the two different guard intervals for multi-user uplink HE WLAN communication.

Abstract: Systems, procedures, and instrumentalities are disclosed for synchronizing a signal burst, signal design, and/or system frame acquisition. A synchronization signal (SS) block or burst may be received. The SS block or burst may include a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and/or a Physical Broadcast Channel (PBCH). A first cell ID may be determined and/or a plurality of SSS sequences may be generated. An m0 value (e.g., a first cyclic shift) may be determined from a set of m0 values, for example, based on the generated plurality of SSS sequences. An n1 value (e.g., a second cyclic shift) may be determined from a set of n1 values. A second cell ID may be determined, for example, based on the m0 value and the n1 value. A third cell ID may be determined, for example, based on the second cell ID and the first cell ID.

Abstract: Systems, methods, and instrumentalities are disclosed for transmitting a message. For example, a first radio access technology (RAT) and/or a second RAT may be determined. The first RAT may be determined for reception of data. The second RAT may be determined for the reception of the data, perhaps for example based on an indication received via the first RAT. The data may be received via a first node associated with the first RAT and a second node associated with the second RAT.

Abstract: An apparatus and method for synchronization between a WTRU and a gNB are disclosed. The WTRU may receive a multiple beam synchronization signal from the gNB during synchronization. For each beam received by the WTRU, of the multiple beam synchronization signal, the WTRU may compare a received energy of the beam against a first threshold. A multiple beam synchronization signal may include a first and second synchronization signal (SS). If one or more beams of the multiple beam synchronization signal meets or exceeds the first threshold, the WTRU may report an indication of pre-synchronization to the gNB. This pre-synchronization may indicate to the gNB that a WTRU exists in an area of a particular beam of the WTRU. In this way, a gNB may target the WTRU using transmissions directed towards the WTRU.

Abstract: Maintaining time alignment with multiple carriers is contemplated. A group of uplink carriers (UL CC sets) that operate with a single Timing Advance (TA) may be determined, and a TA value may be applied to a specific UL CC set. A wireless transmit/receive unit's (WTRU) capability of using multiple TAs may define a group index of a few bits for each UL CC set. A TA Command received in a Random Access Response message may be used to apply the TA value to each UL carrier of the UL CC set. The WTRU may determine which UL CC set the TA value applies to based on which DL carrier the command was transmitted from. The WTRU may determine which UL CC set the TA value applies to based on the Group Index being explicitly provided in the command. The WTRU may release multi-CC configurations upon Time Alignment Timer (TAT) expiry.