Qualcomm Incorporated

Loksiva Paruchuri

Satish Kumar

Sarath Pinayour Chandrasekaran

Ashok Kumar Tripathi

Tushar Singh

Sudeepta Kumar Nath

Raja Sekhar Bachu

Anil Kumar Devpura

Siva Naga Raju Undrakunta

Harika Lavanuru

Aspects of the present disclosure relate to techniques for signal compression. Certain aspects described in this disclosure can be implemented in a method for wireless communication by a distributed unit (DU). The method generally includes compressing at least one reference signal (RS) in one or more first set of resource elements (REs) of a symbol and data in one or more second set of REs of the symbol, wherein the at least one RS is compressed using a first compression type and the data is compressed using a second compression type, and wherein the first compression type is different than the second compression type; and sending, to a radio unit (RU), the symbol having the at least one RS in the one or more first set of REs and the data in the one or more second set of REs compressed using the first and second compression types, respectively.

Compression techniques for data and reference signal resource elements (REs)

Certain aspects of the present disclosure provide techniques for dynamic configuration of demodulation reference signals (DMRSs). A method that may be performed by a base station (BS) includes receiving one or more uplink signals from at least one user equipment (UE); estimating a Doppler shift associated with the one or more uplink signals; determining a density of reference signals (RSs) within a slot for the at least one UE based, at least in part, on the estimated Doppler shift associated with the one or more uplink signals; and transmitting information to the at least one UE indicating an allocation of RS resources for the UE, wherein the allocation of the RS resources is based on the density of the RSs for the at least one UE.

Dynamic configuration of DMRS

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station may extract information from a neighboring base station with cell coverage that overlaps cell coverage of the base station. The base station may determine, from the information, one or more locations of control resource sets (CORESETs) used by the neighboring base station. The base station may select resources that do not overlap with the CORESETs used by the neighboring base station. The base station may transmit a communication using the selected resources. Numerous other aspects are described.

Base station resource selection

A base station (BS) may receive at least one system information block (SIB) from one or more neighbor BSs, extract a physical uplink control channel (PUCCH) common configuration from the SIB for each of the one or more neighbor BSs, and select one or more PUCCH common configuration parameters for the BSs to avoid having a same PUCCH common configuration as the one or more neighbor base stations, the same PUCCH common configuration including at least one of a PUCCH hopping parameter or a common PUCCH resource.

PUCCH and PCI configuration for small cell base station

A method of wireless communication includes, in response to a trigger event detected at a first base station, performing, by the first base station, a scan of a plurality of frequencies for a synchronization signal block (SSB) transmission from a second base station. The plurality of frequencies correspond to a plurality of global synchronization channel numbers (GSCNs) associated with the first base station and the second base station. The first base station is associated with a first coverage area that is at least partially within a second coverage area associated with the second base station. The method further includes transmitting, by the first base station, one or more SSBs having an SSB configuration that is based on a result of the scan.

Scan-based synchronization signal block (SSB) configuration for a base station

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station may determine, based at least in part on a configuration of a first random access channel associated with a macro cell, one or more parameters of a configuration of a second random access channel associated with a small cell provided by the base station. The base station may transmit an indication of the one or more parameters of the configuration of the second random access channel. Numerous other aspects are provided.

Random access channel configuration

Methods, systems, and devices for wireless communications are described. Some wireless communications network may operate in accordance with an open-RAN (ORAN) network specification which may support functional splitting between the ORAN distributed unit (O-DU) and the ORAN radio unit (RU) located at a base station. The O-DU may communicate with the O-RU using control messaging, and the O-DU may signal whether various resource block groups are used for data allocation by enabling or disabling bits in a bit mask parameter in a header of the control message. To increase communications efficiency and reduce overhead, the O-DU may dynamically configure the number of bits included in a bit mask based on a radio access technology (RAT) type. The O-DU may determine the size of the bit mask in the control message based on the RAT type and may generate the control message that includes the bit mask.

Dynamic bit width determination for resource block group mask

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a transmission comprising an indication of at least one failed code block group in a plurality of code block groups, wherein a code block group comprises a plurality of code blocks, re-assign code blocks to different code block groups (CBGs) according to a total number of code blocks (CBs) across the at least one failed code block group (CBG) and a maximum number of code block groups (CBGs) per a transport block (TB), and configure a retransmission based on the re-assigned code blocks (CBs).

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Hyderabad Telangana, India

Loksiva Paruchuri