Qualcomm Incorporated

Intel Corporation

Sanghoon Kim

Hung Dinh Ly

Hari Sankar

Peter S Gaal

Alexei Yurievitch Gorokhov

Tao Luo

Wanshi Chen

Tingfang Ji

Sony Akkarakaran

Yi Huang

Alexandros Manolakos

Srinivas Yerramalli

Minyoung Park

Gokul Sridharan

Dinesh Kumar Devineni

Pushkar Bajirao Kulkarni

Girish Khandelwal

Nitin Agarwal

Jing Jiang

Wei Jennifer Yang

Mahmoud Taherzadeh Boroujeni

Aamod Dinkar Khandekar

Renqiu Wang

Tom Chin

John Edward Smee

Seyong Park

Brian Clarke Banister

Sitaramanjaneyulu Kanamarlapudi

Guttorm Ringstad Opshaug

Abdelrahman Mohamed Ahmed Mohamed Ibrahim

Ashok Mantravadi

Farhad Meshkati

Amir Aminzadeh Gohari

Joseph Patrick Burke

Igor Gutman

Wei Yang

Kausik Ray Chaudhuri

Lin Lu

Troy Russell Curtiss

Runxin Wang

Enoch Shiao-Kuang Lu

Cong Nguyen

Pranay Sudeep Rungta

Krishna Chaitanya Mukkera

Wei-Jei Song

Carlos Cabrera Mercader

Joe Thomas

Marc Azar

Danh Huu Hoang Nguyen

Nachiket Bapat

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a configuration for a sounding reference signal (SRS) resource set that includes a first SRS resource associated with a first SRS resource indicator (SRI) and a first antenna of the UE, and a second SRS resource associated with a second SRI and a second antenna of the UE. The UE may receive first downlink control information (DCI) that schedules a first uplink communication on a first uplink channel, wherein the first DCI indicates the first SRI. The UE may transmit, using the first antenna, the first uplink communication using a transmit power that is based at least in part on a weighted average of a first pathloss associated with the first antenna and a second pathloss associated with the second antenna. Numerous other aspects are described.

Power control for sounding reference signal resource indicator based antenna selection

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a mobile station may transmit first uplink reference signals in a first time slot. The mobile station may transmit an uplink communication with a frequency domain resource allocation different than a frequency domain resource allocation for the first uplink reference signals. The mobile station may determine a time gap between the transmitted uplink communication and second uplink reference signals to be transmitted in a second time slot and retune the mobile station during the time gap such that the second uplink reference signals maintain phase continuity with the first uplink reference signals. The mobile station may transmit the second uplink reference signals in the second time slot. The first time slot and the second time slot may be consecutive time slots for uplink reference signals. Numerous other aspects are described.

Cross-slot channel estimation of uplink reference signals

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a mobile station may generate capability information that indicates a capability of the mobile station to support cross-slot channel estimation based on uplink reference signals across uplink transmissions after switching between a first carrier and a second carrier, based at least in part on the mobile station being capable of supporting cross-slot channel estimation across the uplink transmissions. The mobile station may transmit the capability information. Numerous other aspects are described.

An apparatus is disclosed for frequency-based predistortion signal generation. In an example aspect, the apparatus includes a predistortion linearizer circuit configured to be coupled to an input of an amplifier. The amplifier has non-linearities associated with multiple frequencies. The multiple frequencies include a first subset of frequencies and a second subset of frequencies. The predistortion linearizer circuit is also configured to accept an input signal. The predistortion linearizer circuit is additionally configured to generate, based on the input signal, a compensation signal to attenuate the non-linearities existing within the first subset of frequencies more than the non-linearities existing within the second subset of frequencies. The predistortion linearizer circuit is further configured to generate a pre-distorted signal based on the input signal and the compensation signal.

Frequency-based predistortion signal generation

Certain aspects of the present disclosure provide a method for wireless communication by a user equipment (UE). The UE receives, from a network entity, after transmitting at least a first repetition of a physical uplink control channel (PUCCH) transmission according to a first repetition factor, a dynamic indication of a second repetition factor to apply for transmitting the same PUCCH transmission. The UE determines an application time of the second repetition factor based on at least a timing of a last complete or partial transmission instance of the PUCCH transmission. The UE transmits, to the network entity, one or more additional repetitions of the PUCCH transmission based, at least in part, on the determined application time of the second repetition factor.

Activation instance for dynamic indication of PUCCH repetition factor

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit communications on a primary component carrier and a secondary component carrier (SCC). The UE may refrain from transmission on the SCC based at least in part on an error rate for transmission on the SCC and an amount of transmission power headroom for the UE. Numerous other aspects are provided.

Secondary component carrier drop for power headroom

A method of wireless communication at a user equipment (UE) includes receiving, from a network node, a message indicating slots for transmitting a transport block on a physical uplink shared channel (PUSCH). The method also includes segmenting the transport block into code blocks. The method further includes encoding the code blocks to produce encoded code blocks. Each code block may be encoded at a coding path from a group of coding paths associated with a coding chain. The method still further includes transmitting the encoded code blocks in the slots on the PUSCH.

Transport block over multiple slots coding chain

Aspects of the present disclosure include methods, apparatuses, and computer readable media for receiving an aggregate bandwidth configuration including, a downlink (DL) bandwidth configuration indicating DL resources for one or more DL receptions, and an uplink (UL) bandwidth configuration indicating UL resources for one or more UL transmissions, calculating a maximum power reduction backoff value based on the UL bandwidth configuration, and transmitting UL information for at least one of the one or more UL transmissions based on the maximum power reduction backoff value.

Methods and apparatus for determining maximum power reduction for uplink transmission

This disclosure provides systems, methods, and apparatuses for sharing a maximum transmit power limit between a first radio access technology (RAT) and a second RAT. In one aspect, a wireless communication apparatus may reduce the maximum transmit power limit of a first uplink signal associated with the first RAT to obtain a first transmit power. The wireless communication apparatus may allocate a second transmit power remaining from the maximum transmit power limit to a second uplink signal associated with the second RAT. The wireless communication apparatus may reduce the maximum transmit power limit when the wireless communication apparatus is located at a cell edge, and a higher priority of the first RAT in relation to the second RAT may otherwise result in the second transmit power of the second uplink signal not satisfying a threshold.

Modifying transmit powers of uplink signals associated with different radio access technologies (RATs)

Methods, apparatuses, and computer-readable storage medium for rate matching for TBoMS are provided. An example method includes calculating a slot length for each UL slot of a plurality of UL slots, the slot length for each UL slot being associated with a plurality of rate matching output bits, each UL slot including a starting point for the plurality of rate matching output bits, the slot length for each UL slot being associated with a starting boundary, the plurality of UL slots being associated with at least one of a single TB or a single rate matching. The example method may include allocating one or more bits of the plurality of rate matching output bits for a modulation process. The example method may include refraining allocating at least one bit of the plurality of rate matching output bits for the modulation process, the at least one bit corresponding to UCI multiplexing.

Erasure style LDPC rate matching for TB over multiple slots

Methods, systems, and devices for wireless communications are described. In some systems, a transmitting device may perform a pre-distortion of a signal on a resource allocation for the signal and using discrete Fourier transform (DFT)-domain processing. For example, the transmitting device may perform a first frequency-domain (FD) to time-domain (TD) transform, which may be an example of an inverse DFT (IDFT), on a first set of FD symbols to obtain a first set of TD samples. A size of the first FD to TD transform may be based on the resource allocation for the signal. The transmitting device may perform a crest factor reduction (CFR) function on the first set of TD samples to pre-distort the signal in the TD (e.g., in the IDFT domain), which may enable the transmitting device to avoid out-of-band (OOB) emission or otherwise have greater control over where the pre-distortion contributes energy.

Techniques for peak-to-average-power-ratio reduction in a discrete Fourier transform domain for wireless waveforms

Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may transmit a sounding reference signal (SRS) to a base station using an SRS antenna switch (SRS-AS) or an SRS carrier switch (SRS-CS) transmission technique and the UE may feature multiple antenna groups that have separate exposure budgets due to their spatial separation. The UE may employ one or more accounting procedures for tracking energy contributions associated with the SRS across the multiple antenna groups of the UE and may employ one or more power control procedures for setting a transmit power for an uplink signal in accordance with the energy contributions associated with the SRS.

Techniques for accounting for energy contributions from sounding reference signal transmissions over multiple antenna groups towards an exposure limit

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station, information identifying a resource allocation for an uplink transmission of a transport block over multiple slots. The UE may transmit, to the base station, at least a portion of coded bits corresponding to the transport block based at least in part on a different uplink transmission being scheduled within the uplink transmission of the transport block over the multiple slots. Numerous other aspects are described.

Transport block over multiple slots in a wireless communication system

A wireless device may identify a set of resources reserved for feedback information (e.g., resource elements (REs) reserved for feedback such as acknowledgement (ACK) or negative ACK (NACK) information) within a transmission time interval (TTI). Feedback information may be mapped to the reserved set of resources (e.g., reserved REs). The wireless device may determine a set of unused reserved resources (e.g., a set of unused reserved REs) based on the number of feedback bits. The wireless device may then map other bits (e.g., zeros, known bits, pattern or sequence of bits, random bits, etc.) to the set of unused reserved REs, or boost transmission power of bits mapped around the unused reserved REs. In some cases, the number of reserved REs may be determined based on the number of feedback bits (e.g., the size of the ACK/NACK payload). The wireless device may then transmit the information to a base station.

Feedback bit reservation for uplink control piggybacking

Growing community of inventors

Saratoga, CA, United States of America

Sanghoon Kim