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公开(公告)号:US20250119953A1
公开(公告)日:2025-04-10
申请号:US18836173
申请日:2022-04-06
Applicant: QUALCOMM Incorporated
Inventor: Hung Dinh LY , Kexin XIAO , Hwan Joon KWON
IPC: H04W74/0833 , H04B7/06 , H04W72/0446
Abstract: The described techniques enable repeated physical random access channel (PRACH) preamble transmissions across multiple random access occasions (ROs) using a same spatial filter. A user equipment (UE) may transmit a PRACH preamble across multiple ROs, where each RO is associated with a same synchronization signal block (SSB) or channel state information reference signal (CSI-RS). In such cases, the PRACH repetitions may be transmitted in ROs in accordance with a mapping rule: first, in increasing order of frequency resource index; second, in increasing order of a time resource index; third, in increasing order of PRACH slot indices; and fourth, in increasing order of PRACH association period indices. Additionally, or alternatively, the PRACH repetitions may be transmitted in ROs in accordance with a mapping rule: first, in increasing order of time resource index; second, in increasing order of PRACH slot indices; and third, in increasing order of PRACH association period indices.
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公开(公告)号:US20240397481A1
公开(公告)日:2024-11-28
申请号:US18694862
申请日:2021-11-15
Applicant: QUALCOMM Incorporated
Inventor: Kexin XIAO , Hung Dinh LY , Huilin XU
Abstract: Method and apparatus for carrier selection for paging on a flexible cell. The apparatus receives an indication to monitor at least one carrier from a flexible cell for a paging message. The flexible cell comprising an anchor carrier and one or more non-anchor carriers. The apparatus monitors a first carrier from the flexible cell for the paging message based on the indication, the paging message associated with a PDCCH that schedules a PDSCH. The apparatus may receive, from the flexible cell, a downlink BWP configuration for the anchor carrier and the one or more non-anchor carriers.
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公开(公告)号:US20240223312A1
公开(公告)日:2024-07-04
申请号:US18558107
申请日:2021-07-28
Applicant: QUALCOMM Incorporated
Inventor: Hung Dinh LY , Mahmoud TAHERZADEH BOROUJENI , Kexin XIAO
IPC: H04L1/08 , H04W74/00 , H04W74/0833
CPC classification number: H04L1/08 , H04W74/004 , H04W74/0833
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit, to a base station, a first message of a random access procedure. The UE may receive, from the base station, a second message of the random access procedure that indicates information for an uplink grant for a third message of the random access procedure, the information including a modulation and coding scheme (MCS) indication and a transmit power control (TPC) indication. The UE may transmit, to the base station, one or more repetitions of a physical uplink shared channel carrying the third message. A repetition factor for the one or more repetitions may be indicated by at least one of the MCS indication or the TPC indication. Numerous other aspects are described.
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公开(公告)号:US20240223305A1
公开(公告)日:2024-07-04
申请号:US18563547
申请日:2021-07-30
Applicant: QUALCOMM Incorporated
Inventor: Liangming WU , Ori SHENTAL , Thomas Joseph RICHARDSON , Kexin XIAO , Wei LIU , Changlong XU , Hao XU
IPC: H04L1/00
CPC classification number: H04L1/0041 , H04L1/0047
Abstract: Certain aspects of the present disclosure provide a technique for parallel distribution matching (DM) encoding. A user equipment (UE) implements the technique to perform a first round of parallel DM encoding using k information bits as input by: 1) segmenting the k information bits into N blocks of information bits, and 2) encoding the N blocks of information bits in parallel with N DM blocks. Each of the N blocks outputs one or more encoded information bits in each of the NDM blocks, and a total number of information bits output by the N DM blocks is less than k. The UE then performs a second round of parallel DM encoding using k′ information bits that were not encoded in the first round of DM encoding. The second round of parallel DM encoding includes a same encoding process as implemented in the first round of parallel DC encoding.
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公开(公告)号:US20240146449A1
公开(公告)日:2024-05-02
申请号:US18279593
申请日:2021-04-16
Applicant: QUALCOMM Incorporated
Inventor: Ori SHENTAL , Thomas Joseph RICHARDSON , Liangming WU , Kexin XIAO , Ashwin SAMPATH , Muhammad Nazmul ISLAM , Michael DIMARE , Michael Ethan BERKOWITZ , Changlong XU , Hao XU
CPC classification number: H04L1/0042 , H04W28/04
Abstract: Apparatus, methods, and computer-readable media for facilitating distribution matching via reversed compression are disclosed herein. An example method for wireless communication at a wireless transmitter includes decompressing a first sequence of information bits for wireless transmission to output a sequence of shaped symbols. The example method also includes compressing the sequence of shaped symbols to output a second sequence of compressed information bits. The example method also includes transmitting, to a receiver, a signal comprising the sequence of shaped symbols.
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公开(公告)号:US20240137873A1
公开(公告)日:2024-04-25
申请号:US18264053
申请日:2021-03-09
Applicant: QUALCOMM Incorporated
Inventor: Kexin XIAO , Liangming WU , Changlong XU , Kangqi LIU , Hao XU , Jian LI , Ruiming ZHENG , Wei LIU
CPC classification number: H04W52/146 , H04L27/3405 , H04W52/262 , H04W52/365
Abstract: Methods, systems, and devices for power backoff techniques for modulation schemes are described. A user equipment (UE) may receive an indication of a constellation distribution parameter and a modulation scheme to be used by the UE for an uplink message on an uplink channel. The UE may determine an uplink transmission power based at least in part on the indicated constellation distribution parameter and the indicated modulation scheme. The UE may transmit the uplink message using the indicated modulation scheme according to the determined uplink transmission power. In some examples, the UE may transmit a report indicating a power headroom parameter and an output power parameter based at least in part on the constellation distribution parameter.
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公开(公告)号:US20240008093A1
公开(公告)日:2024-01-04
申请号:US18254145
申请日:2021-01-15
Applicant: QUALCOMM Incorporated
Inventor: Hung Dinh LY , Kexin XIAO , Krishna Kiran MUKKAVILLI
IPC: H04W74/08
CPC classification number: H04W74/0833 , H04L1/08
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit a random access channel preamble to abase station. The UE may receive, from the base station and in response to the random access channel preamble, a grant comprising a first frequency hopping indication associated with intra-slot frequency hopping and a second frequency hopping indication associated with inter-slot frequency hopping. The UE may identify, based at least in part on the first frequency hopping indication or the second frequency hopping indication, a frequency hopping configuration for transmission of repetitions of an uplink transmission responsive to the grant. The UE may transmit the repetitions of the uplink transmission using one or more frequency Chops in accordance with the frequency hopping configuration.
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公开(公告)号:US20230403118A1
公开(公告)日:2023-12-14
申请号:US18246319
申请日:2020-10-29
Applicant: QUALCOMM Incorporated
Inventor: Kexin XIAO , Muhammad Sayed Khairy ABDELGHAFFAR , Yu ZHANG , Bo CHEN , Runxin WANG , Yeliz TOKGOZ , Krishna Kiran MUKKAVILLI
IPC: H04L5/00 , H04B7/06 , H04B7/0456
CPC classification number: H04L5/0051 , H04L5/0094 , H04B7/0628 , H04B7/0602 , H04B7/0456
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit a capability message indicating a first number of one or more transmit antennas supported by the UE for antenna switching and a second number of ports supported for uplink transmission that exceeds the first number of one or more transmit antennas. The UE may receive, based on the capability message, a sounding reference signal (SRS) configuration indicating a mapping between each SRS resource or SRS resource group and a respective bit sequence of a set of bit sequences. The UE may receive a control message comprising one or more bit sequences of the set of bit sequences indicating one or more SRS resources or an SRS resource group based on the mapping. The UE may transmit one or more SRS signals based on the control message.
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公开(公告)号:US20250048433A1
公开(公告)日:2025-02-06
申请号:US18717606
申请日:2022-02-23
Applicant: QUALCOMM Incorporated
Inventor: Hung Dinh LY , Kexin XIAO , Krishna Kiran MUKKAVILLI
IPC: H04W74/0833
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit, to a network entity, multiple physical random access channel (PRACH) transmissions based at least in part on a PRACH slot frequency hopping. The UE may receive, from the network entity, a response based at least in part on the multiple PRACH transmissions associated with the PRACH slot frequency hopping. Numerous other aspects are described.
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公开(公告)号:US20250030525A1
公开(公告)日:2025-01-23
申请号:US18715692
申请日:2022-02-23
Applicant: QUALCOMM Incorporated
Inventor: Hung Dinh LY , Kexin XIAO , Gokul SRIDHARAN
IPC: H04L5/00 , H04W72/0453
Abstract: A base station and a user equipment (UE) may perform a dynamic waveform switching for physical uplink shared channel (PUSCH) transmissions. The base station may send a configuration for dedicated waveform switching associated with the PUSCH transmissions, and transmit, to the UE, an indication of a first waveform for transmitting the PUSCH, the indication being independent of the bandwidth part (BWP) configuration for the PUSCH. Based on the configuration for the dedicated waveform switching associated with the PUSCH transmissions and the indication of the first waveform for the PUSCH transmission, the UE may transmit the PUSCH, at least one PUSCH repetition, and at least one retransmission of the PUSCH, and the base station may receive the PUSCH, at least one PUSCH repetition, and at least one retransmission of the PUSCH.
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