Patent classifications
H04L5/00
EXTENSION OF AN EVALUATION PERIOD OF INTEGRATED ACCESS BACKHAUL MOBILE TERMINATION DUE TO COMMUNICATION OF THE CO-LOCATED INTEGRATED ACCESS BACKHAUL DISTRIBUTED UNIT
The apparatus may be a first device at a first IAB node or the first IAB node itself. The IAB node may be configured to receive a configuration for a first set of reference signals associated with an IAB-MT function of the IAB node, wherein the first set of reference signals overlaps in time with a second set of time periods associated with an IAB-DU function of the IAB node. The IAB node may further be configured to extend an IAB-MT reference-signal measurement period based on the overlap between the first set of reference signals for measurement with the IAB-MT function of the IAB node and the second set of time periods associated with the IAB-DU function of the IAB node.
SHORT REFERENCE SIGNALS FOR SIDELINK COMMUNICATION
Methods, systems, and devices for wireless communications are described. In some examples, a wireless communications system may support short reference signals for sidelink communication. A transmitting user equipment (UE) and a receiving UE may receive, from a base station, configuration signaling that indicates a set of sidelink resources that includes a set of slots within a subcarrier. A subset of the slots may include a first set of symbols allocated to a physical sidelink shared channel (PSSCH) and a second set of symbols allocated to a reference signal, where the first set of symbols comes before the second set of symbols in a time domain. The transmitting UE may transmit, to the receiving UE, a reference signal over the second set of symbols and the receiving UE may utilize the reference signal to decode data message received from the transmitting UE.
TECHNIQUES FOR SIDELINK SENSING AND POSITIONING
This disclosure provides systems, methods and apparatus, for measurement and reporting procedures associated with a sidelink positioning reference signal (SL-PRS). In one aspect, a first user equipment (UE), which may function as a sidelink anchor node, may transmit an SL-PRS to a second UE in accordance with a slot format or structure that is dedicated for SL-PRS transmissions. The first UE may select resources for the transmission of the SL-PRS via sensing and exclusion or using a set of resources that are dedicated for SL-PRS transmissions. The second UE may receive the SL-PRS and use the SL-PRS to acquire positioning information, in accordance with an observed time difference of arrival (OTDOA)-based positioning method, or may transmit a second SL-PRS to the first UE to facilitate acquisition of positioning information at the first UE, in accordance with a round-trip-time (RTT)-based positioning method.
TECHNIQUES FOR SIDELINK SENSING AND POSITIONING
This disclosure provides systems, methods and apparatus, for measurement and reporting procedures associated with a sidelink positioning reference signal (SL-PRS). In one aspect, a first user equipment (UE), which may function as a sidelink anchor node, may transmit an SL-PRS to a second UE in accordance with a slot format or structure that is dedicated for SL-PRS transmissions. The first UE may select resources for the transmission of the SL-PRS via sensing and exclusion or using a set of resources that are dedicated for SL-PRS transmissions. The second UE may receive the SL-PRS and use the SL-PRS to acquire positioning information, in accordance with an observed time difference of arrival (OTDOA)-based positioning method, or may transmit a second SL-PRS to the first UE to facilitate acquisition of positioning information at the first UE, in accordance with a round-trip-time (RTT)-based positioning method.
METHODS AND APPARATUS FOR UE POWER SAVINGS IN INITIAL DOWNLINK BANDWIDTH PART DEDICATED TO REDCAP DEVICES
Methods and apparatuses for operating in different bandwidth parts (BWPs). A method includes receiving a first synchronization signal and physical broadcast channel (SS/PBCH) block in a first BWP; determining, based on information provided by the first SS/PBCH block, a first control resource set (CORESET) in the first BWP; and receiving a first physical downlink control channel (PDCCH) in the first CORESET. The PDCCH provides a first downlink control information (DCI) format that schedules a reception of a first physical downlink shared channel (PDSCH) providing a system information block (SIB1). The method further includes receiving the first PDSCH, determining a second BWP based on information provided by the SIB1, and receiving a second SS/PBCH block in the second BWP. The second BWP does not include a bandwidth of the first SS/PBCH block. The second BWP does not include a bandwidth of the first CORESET.
METHOD FOR TRANSMITTING DEMODULATION REFERENCE SIGNAL FOR UPLINK DATA IN WIRELESS COMMUNICATION SYSTEM, AND DEVICE FOR SAME
The present disclosure provides a method for transmitting a demodulation reference signal. Specifically, the method performed by the terminal comprising: receiving, from a base station, a radio resource control (RRC) signaling including control information representing that transform precoding for an uplink is enabled; generating a low peak to average power ratio (PAPR) sequence based on a length-6 sequence; generating a sequence used for the demodulation reference signal based on the low PAPR sequence; and transmitting, to the base station, the demodulation reference signal based on the sequence used for the demodulation reference signal, wherein the length-6 sequence has an 8-Phase Shift Keying (PSK) symbol as each element of the sequence.
METHOD AND APPARATUS FOR SUPPORTING UDM UPDATE DATA FOR NPN
Disclosed is a method, performed by an access and mobility management function, of providing a user equipment (UE) with update information regarding at least one UE parameter. The method includes receiving, from the UE, a registration request message, transmitting, to a unified data management (UDM), a UE context management registration message based on the registration request message, receiving, from the UDM, update information regarding the UE parameter, in response to the UE context management registration message, wherein the update information regarding the UE parameter includes information regarding preferred SNPN and information regarding a list of group identifiers for network selection (GINs), and transmitting, to the UE, the update information regarding the UE parameter including the information regarding preferred SNPN and the information regarding the list of GINs.
COVERAGE ENHANCEMENT
The present disclosure proposes various methods for improving coverage. According to an embodiment of the present disclosure, when an unavailable resource exists in a resource set configured for repeated transmission of a physical uplink channel, the UE may determine a resource capable of actually performing repeated transmission of a physical uplink channel within the resource set. According to another embodiment of the present disclosure, when the terminal receives the TPC command within the resource corresponding to the DMRS bundle, the terminal may perform power control based on the TPC command after the resource.
APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING ACTIVATION INDICATOR REGARDING COMPONENT CARRIER IN WIRELESS COMMUNICATION SYSTEM
A method for supporting activation/deactivation of serving cells by a base station (BS) in a wireless communication system provides decreased overhead and decreased power consumption for a user equipment (UE). The method includes configuring M supportable serving cells in the UE, configuring an indicator indicating activation/deactivation of each of the M serving cells, configuring a medium access control (MAC) message which includes a MAC control element (CE) and a logical channel identifier (LCID), the MAC CE including the indicator configured for each of the M serving cells and having a length corresponding to an integer multiple of 8 bits, the LCID indicating that the MAC CE includes the indicator indicating activation/deactivation of each serving cell, and transmitting the configured MAC message to the UE. Accordingly, a control channel or data channel regarding a component carrier is selectively received depending on whether the component carrier is activated.
MOBILE TERMINAL AND BASE STATION INVOLVED IN DOWNLINK CHANNEL OPERATIONS INCLUDING RADIO CHANNEL ESTIMATION BASED ON DEMODULATION REFERENCE SIGNAL
The present disclosure relates to a mobile terminal, a base station and respective operation methods. The mobile terminal comprises circuitry, which in operation assumes that a base station is configured to use one of a plurality of transmission beams, receives a downlink control channel candidate and a corresponding demodulation reference signal using one of a plurality of reception beams corresponding to the assumed one of the plurality of transmission beams, performs channel estimation based on the received demodulation reference signal, and, depending on the quality, demodulates the downlink control channel candidate using the channel estimation. The channel estimation is performed using a demodulation reference signal sequence which is generated observing an association which is associating the generated sequence with the assumed one of the plurality of transmission beams such that at least two of the plurality of transmission beams are associated with different demodulation reference signal sequences.