Abstract:
Methods, systems, apparatuses, and devices are described for wireless communication. From a plurality of physical carriers associated with a clear channel assessment (CCA) performed by a device, one of the physical carriers for which the CCA was successful may be identified. A virtual carrier associated with a wireless data transmission by the device may be mapped to the identified one of the physical carriers.
Abstract:
Resource mapping and coding schemes to handle bursty interference are disclosed that provide for spreading the modulated symbols for one or more transmission code words over more symbols in the time-frequency transmission stream. Certain aspects allow for the modulated symbols to be based on bits from more than one code word. Other aspects also provide for re-mapping code word transmission sequences for re-transmissions based on the number of re-transmissions requested by the receiver. Additional aspects provide for layered coding that uses a lower fixed-size constellation to encode/decode transmissions in a layered manner in order to achieve a larger- size constellation encoding. The layered encoding process allows the transmitter and receiver to use different coding rates for each coding layer. The layered encoding process also allows interference from neighboring cells to be canceled without knowledge of the actual constellation used to code the interfering neighboring signal.
Abstract:
Channel state information (CSI) and acknowledgement (ACK) reporting enhancements in Long Term Evolution (LTE)/LTE-Advanced (LTE-A) enabling communications over an unlicensed spectrum are disclosed. For example, ACK/NAK may include unlicensed spectrum interference information, such as WIFI interference. Additionally, in anticipation of a future downlink transmission, UEs may report WiFI interference to base stations absent a current downlink transmission. Also, CSI-RS and/or IMR resources may be staggered across subframes and/or within slots of subframes. Further, CSI reporting may include separate reports for CSI-RS resources that experience unlicensed spectrum interference and interference free CSI-RS resources. Still further, CSI reports may include a request to the base station to switch the current channel or band. Finally, inter-RAT ACK and CSI reporting may be provided on a second unlicensed spectrum band, such as a WIFI band, for a first unlicensed spectrum band, such as an LTE/LTE-A unlicensed band.
Abstract:
This disclosure provides systems, methods, and devices for wireless communication that supports an assistance indicator, such as a UAI message, that includes position assistance information. In a first aspect, a method of wireless communication includes generating, by a user equipment (UE), an assistance indicator including position assistance information. The method further includes transmitting the assistance indicator to a network entity. Other aspects and features are also claimed and described.
Abstract:
Method and apparatus for beam information in downlink AoD positioning with UE positioning. The apparatus sends a first request, to at least one base station, for a beam response report based on at least a first location information. The first request includes the first location information with respect to the at least one base station. The apparatus sends a second request, to the at least one base station, for a beam response report based on at least a second location information. The second request includes the second location information with respect to the at least one base station. The apparatus receives, from the at least one base station, one or more beam response reports comprising beam response information of one or more transmission beams of the at least one base station corresponding to at least the first location information and the second location information.
Abstract:
Methods, apparatuses, and computer-readable storage medium for positioning are provided. An example method at a base station may include transmitting, to a user equipment (UE), a location request requesting location information from the UE. The example method at the base station may further include receiving, from the UE, an acknowledgment acknowledging the location request. The example method at the base station may further include transmitting, to the UE based on the received acknowledgment, a measurement gap (MG) request associated with a location management function (LMF) for the UE to measure its location based on the transmitted location request.
Abstract:
Aspects presented herein may enable a UE to measure a subset of a bandwidth of PRSs, such that the UE may measure the PRSs without retuning bandwidth. In one aspect, a UE measures at least one quality metric associated with one or more channels for one or more PRSs. The UE receives, from a base station, the one or more PRSs via the one or more channels. The UE measures the one or more PRSs using at least one measuring BW of a plurality of measuring BWs, the plurality of measuring BWs being based on at least one of the measured at least one quality metric meeting a quality metric threshold, a BW for the one or more PRSs being greater than or outside of a BW for an ABWP, or a UEsystem BW being greater than the BW for the one or more PRSs.
Abstract:
Method and apparatus for measuring downlink positioning of an SCell in a dormant state. The apparatus receives, from a base station, a dormancy state configuration of an SCell associated with the base station. The apparatus measures downlink positioning measurements associated with at least one frequency corresponding to the SCell in a dormant state based on the dormancy state configuration. The apparatus may measure downlink positioning measurements associated with at least one frequency corresponding to at least one active cell associated with the base station. The apparatus may report the downlink positioning measurements of the SCell in the dormant state to an active cell associated with the base station.
Abstract:
Disclosed are techniques for wireless positioning. In an aspect, a user equipment (UE) receives one or more positioning reference signal (PRS) configurations, performs a first set of positioning measurements of a first set of PRS resources indicated by a first PRS configuration for a normal mode positioning procedure, transmits a first measurement report for the normal mode positioning procedure, performs a second set of positioning measurements of a second set of PRS resources indicated by a second PRS configuration for a positioning reference unit (PRU) mode positioning procedure, and transmits a second measurement report for the PRU mode positioning procedure, wherein a number of the first set of positioning measurements is less than a number of the second set of positioning measurements.
Abstract:
Disclosed are techniques for wireless positioning performed by a user equipment. For example, the method includes entering into a Radio Resource Control (RRC) inactive state. The method includes monitoring, during a first time interval, while the user equipment is in the RRC inactive state, one or more first bandwidth parts having a first bandwidth to perform a first operation. The method includes monitoring, during a second time interval, while the user equipment is in the RRC inactive state, one or more second bandwidth parts having a second bandwidth to perform a second operation. The second bandwidth is different than the second bandwidth.