摘要:
A method and apparatus for use in a wireless transmit receive unit (WTRU) for receiving system information. A WTRU receives a broadcast signal from a gNB, wherein the broadcast signal includes system information. The WTRU determines configuration information associated with the received system information and the WTRU transmits a signal to the gNB using the determined configuration information associated with the received system information. The configuration information includes an indication regarding whether the WTRU is able to include any one or a combination of a request signal or a feedback signal in the signal transmitted to the gNB. The transmitted signal to the gNB may include a preamble that indicates system information block (SIB) request information. The transmitted signal to the gNB may include a control field that indicates additional SIB request information. The transmitted signal may provide feedback for the received system information. The WTRU then receives system information from the gNB in response to the transmitted signal. The received system information in response to the transmitted signal is one or more SIBs.
摘要:
A method implemented by a wireless/transmit receive unit (WTRU), the method comprising: receiving a synchronization signal (SS) block of a plurality of SS blocks comprised in a SS burst set, each of the plurality of SS blocks comprised in the SS burst set comprising a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a physical broadcast channel (PBCH) transmission, wherein each respective SS block of the plurality of SS blocks comprised in the SS burst set is associated with a respective SS-block index that identifies the respective SS block within the SS burst set; determining the respective SS-block index for the received SS block based on the PBCH transmission comprised in the received SS block; and determining a system frame number (SFN) based on the PBCH transmission comprised in the received SS block.
摘要:
A method implemented by a wireless/transmit receive unit (WTRU), the method comprising: receiving a synchronization signal (SS) block of a plurality of SS blocks comprised in a SS burst set, each of the plurality of SS blocks comprised in the SS burst set comprising a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a physical broadcast channel (PBCH) transmission, wherein each respective SS block of the plurality of SS blocks comprised in the SS burst set is associated with a respective SS-block index that identifies the respective SS block within the SS burst set; determining the respective SS-block index for the received SS block based on the PBCH transmission comprised in the received SS block; and determining a system frame number (SFN) based on the PBCH transmission comprised in the received SS block.
摘要:
Systems, methods, and instrumentalities are disclosed for range extension, basic service set (BSS) color labeling, and multi-user (MU) fragmentation and control in WLANs. A range extension notification/enablement scheme, a clear channel assessment (CCA), a headroom indication, and/or power scaling may be provided for a range extension mode. BSS color may be provided for multiple-BSSs under an access point (AP). Uplink (UL) transmission may be provided with different fragmentation capabilities. A high-efficiency (HE) trigger-based UL NDP physical layer convergence protocol (PLCP) protocol data unit (PPDU) frame may be provided. A station (STA) may receive a trigger frame comprising a null data packet (NDP) indication and a trigger type. The STA may determine that the STA is an intended recipient of the trigger frame. The STA may prepare an NDP PPDU for a control frame and/or a management frame based on the trigger type.
摘要:
Systems, methods, and instrumentalities are disclosed for multiple resource unit (RU) allocation for OFDMA WLAN. A transmitter may parse an encoded bit stream into a plurality of spatial streams. The transmitter may determine an allocation of encoded bits of the plurality of spatial streams to a plurality of interleavers. The transmitter may allocate the encoded bits to the plurality of interleavers based on the determined allocation. The allocation of the encoded bits may be determined based on one or more of channel related feedback, an RU configuration associated with the transmission, a quality of service (QoS), and/or traffic priorities. The transmitter may interleave the encoded bits using the plurality of interleavers. The transmitter may combine the interleaved encoded bits from the plurality of interleavers into a sequenced bit stream.
摘要:
ePDCCH may be provided. For example, a WTRU may receive a configuration for monitoring an ePDCCH resource. Based on the configuration, the WTRU may be configured to monitor and may monitor the ePDCCH resource on a particular subframe. Additionally, a WTRU may derive an aggregation level for a subframe associated with an aggregation level number NAL. The WTRU may transmit or monitor an ePDCCH using the aggregation level associated with the NAL for the subframe. A WTRU may also receive a reference signal. The WTRU may then determine the type of reference signal received. The WTRU may perform a demodulation of the PDSCH or ePDCCH using a demodulation timing based on the determined type. The ePDCCH or PDSCH may also be monitored or received by identifying a demodulation reference timing implicitly based on a location of one or more ePDCCH resources where the WTRU may receive DCI.
摘要:
A method and apparatus for sending feedback for multi-cell high speed downlink packet access (HSDPA) operations are disclosed. A wireless transmit/receive unit (WTRU) may generate and send hybrid automatic repeat request acknowledgement (HARQ-ACK) messages and/or channel quality indication (CQI) or precoding control indication/channel quality indication (PCI/CQI) messages for a plurality of cells via a plurality of high speed dedicated physical control channels (HS-DPCCHs) with a spreading factor of 128. Each HARQ-ACK message may be mapped to two cells and each CQI or PCI/CQI message may be mapped to one cell. The cells may be remapped to an HARQ-ACK message and a CQI or PCI/CQI message within an HS-DPCCH on a condition that any cell is activated or deactivated on that HS-DPCCH.
摘要:
A method for configuring transmission parameters for uplink, UL, transmissions utilizing multiple antennas, and a Wireless Transmit/Receive Unit, WTRU, comprising a processor configured to perform the method are disclosed. Data are transmitted via at least two antennas using at least two multiple-input and multiple-output, MIMO, transmission streams including a first reference channel via a first MIMO transmission stream and a second reference channel via a second MIMO transmission stream. A power offset associated with the second MIMO transmission stream is received, and E-TFC selection is performed for the second MIMO transmission stream using the power offset associated with the second MIMO transmission stream.
摘要:
Methods and apparatus for multiple carrier utilization in wireless communications are disclosed. These methods include multiple carrier activation/deactivation, multiple carrier discontinuous transmission (DTX) and discontinuous reception (DRX) activation/deactivation and operations, and multiple carrier acknowledgment/negative acknowledgement feedback. The methods include provisions for joint multiple carrier activation and deactivation and joint DTX and DRX activation and deactivation of multiple carriers.