H04L1/0693

Device and method for communicating channel state information reference signal (CSI-RS) in wireless communication system

A method for wireless communication by a terminal, a method for wireless communication by a base station, the terminal, and the base station, are provided. The method for wireless communication by the terminal includes receiving first information comprising a muting subframe interval, a subframe offset, and a muting position of a resource element in a resource block, checking presence of a data in a subframe, determining the resource element to be muted in the subframe based on the muting subframe interval, the subframe offset, and the muting position, if the data is present, and receiving the data on a physical downlink shared channel (PDSCH) based on the result of the determining step.

METHOD OF TRANSMITTING UPLINK CONTROL INFORMATION BY USER EQUIPMENT IN WIRELESS COMMUNICATION SYSTEM AND DEVICE FOR SUPPORTING SAME

The present invention discloses a method of transmitting uplink control information by a user equipment in a wireless communication system and device for supporting the same. Specifically, the present invention discloses a method by which a user equipment maps uplink control information to a physical uplink shared channel when the user equipment intends to transmit the uplink control information on the physical uplink shared channel and transmission operation for the uplink control information based on the same.

METHOD FOR CONFIGURING CHANNEL STATE INFORMATION REPORTING BAND AND COMMUNICATIONS APPARATUS
20200099473 · 2020-03-26 ·

This application configures a quantity and size of subbands in a channel state information (CSI) reporting band for flexibility and reduced complexity of terminal addressing by determining a channel state information subband size based on a bandwidth part (BWP), determining a quantity of channel state information subbands included in a channel state information reporting band based on (i) a carrier bandwidth (CC bandwidth), (ii) the BWP bandwidth or (iii) a channel state information reference signal (CSI-RS) bandwidth and the channel state information subband size. The method further includes determining an actual quantity of resource blocks included in a starting subband and an actual quantity of resource blocks in an ending subband in the channel state information subband.

Methods for Reference Determination in Inter-RAT TDOA
20200092737 · 2020-03-19 ·

A wireless device adapted for operation according to two or more radio access technologies, RATs, obtains positioning reference signal configuration information by sending (602), to a location server, a request for assistance, the request for assistance comprising information about a cell serving the wireless device according to a first RAT. The wireless device receives (604), in response to the request for assistance, positioning reference signal configuration information, the positioning reference signal configuration information identifying one or more signals transmitted according to a second RAT, for measurement by the wireless device. The wireless device measures (606) at least one of the identified one or more signals and may report the measurements and/or estimate a location for the wireless device based on the measurements.

DEVICES AND METHODS FOR EXCHANGING CHANNEL STATE INFORMATION
20200092067 · 2020-03-19 ·

The invention relates to a communication device comprising: a communication interface configured to transmit a pilot signal via a communication channel to a further communication device and to receive a plurality of data elements representing channel state information (CSI) from the further communication device, wherein the plurality of data elements are a subset of a set of data elements representing the full channel state information (CSI) being available at the further communication device; and a processing unit configured to generate the full channel state information (CSI) on the basis of the plurality of data elements by applying a fitting scheme to the plurality of data elements received from the further communication device.

CHANNEL STATE INFORMATION REPORTING ON LICENSED AND UNLICENSED CARRIERS

The present disclosure relates to methods for reporting channel state information. The present disclosure also provides mobile stations for performing these methods, and computer readable media the instructions of which cause the mobile station to perform the methods described herein. For this purpose, the mobile station receives a trigger message that triggers the reporting of channel state information for at least one of the plurality of downlink component carriers, the trigger message being received in a subframe n.sub.Trigger, and reports the triggered channel state information for the at least one of the plurality of downlink component carriers based on reference signals present on the at least one of the plurality of downlink component carriers, in a subframe n.sub.Report later than n.sub.Trigger. The received trigger message indicates that the reference signals are present in a subframe n.sub.RS on the at least one of the plurality of downlink component carriers, where n.sub.Triggern.sub.RS<n.sub.Report.

Uplink transmission collision management

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may identify, when using carrier aggregation and a plurality of component carrier groups, first traffic associated with a first service type and second traffic associated with a second service type for concurrent transmission. The user equipment may transmit, concurrently, the first traffic associated with the first service type using a first component carrier group of the plurality of component carrier groups, and the second traffic associated with the second service type using a second component carrier group of the plurality of component carrier groups. Numerous other aspects are provided.

TECHNIQUES FOR SPATIAL DOMAIN BASIS FUNCTION REFINEMENT
20240097822 · 2024-03-21 ·

Techniques and devices for wireless communications are described. A user equipment (UE) may receive a first message from a network entity that indicates a configuration for reporting spatial domain basis function updates to the network entity. The UE may transmit a full channel state information (CSI) report and a partial CSI report to the network entity based on the indicated configuration. The full CSI report may indicate a set of spatial domain basis functions and the partial CSI report may indicate an update for the set of spatial domain basis functions. The update for the set of spatial domain basis functions may be relative to the full CSI report or a previously transmitted partial CSI report. In some examples, the UE may receive a second message from the network entity based on the partial CSI report.

QUANTIZATION OF CHANNEL STATE INFORMATION IN MULTIPLE ANTENNA SYSTEMS
20240048193 · 2024-02-08 · ·

A method of transmission over multiple wireless channels in a multiple antenna system includes storing channel modulation matrices at a transmitter; receiving quantized channel state information at the transmitter from plural receivers; selecting a transmission modulation matrix using the quantized channel state information from the stored channel modulation matrices; and transmitting over the multiple channels to the plural receivers using the selected transmission modulation matrix. In another embodiment, the method includes storing, at one or more receivers, indexes of modulation matrices generated by a capacity enhancing algorithm; upon a selected one of the one or more receivers receiving a transmission from the transmitter, the selected receiver selecting a modulation matrix from the stored modulation matrices that optimizes transmission between the transmitter and the selected receiver; the selected receiver sending an index representing the selected modulation matrix; and receiving the index at the transmitter from the selected receiver.

Method for configuring channel state information reporting band and communications apparatus

This application provides a method for configuring a channel state information reporting band, a reporting method, and a corresponding apparatus. The method includes: determining a channel state information subband size based on a bandwidth part BWP; and determining, a quantity of channel state information subbands included in a channel state information reporting band, based on a carrier bandwidth CC bandwidth or the bandwidth part BWP bandwidth or a channel state information reference signal CSI-RS bandwidth, and the channel state information subband size. The method further includes: determining an actual quantity of resource blocks included in a starting subband and an actual quantity of resource blocks included in an ending subband in the channel state information subband. Implementation of this application makes configuration of a quantity and size of subbands in a CSI reporting band more flexible, and reduces complexity of terminal addressing.