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公开(公告)号:US12302359B2
公开(公告)日:2025-05-13
申请号:US18670432
申请日:2024-05-21
Applicant: QUALCOMM Incorporated
Inventor: Yisheng Xue , Chih-Hao Liu , Jing Sun , Xiaoxia Zhang
IPC: H04W72/23 , H04L1/1867 , H04W24/08 , H04W72/0446 , H04W74/0808
Abstract: Methods, systems, and devices for wireless communications are described. In some examples, a base station may transmit, to a secondary user equipment (UE), a first grant to conditionally transmit one or more data messages over a first set of resources upon completion of a detection procedure. The detection procedure may include monitoring a second set of resources for over-the-air (OTA) signals transmitted by a primary UE pursuant to a second grant, where the first set of resources at least partially overlaps the second set of resources. The UE may monitor for the OTA signals from the primary UE, determine that one or more conditions for transmission of the one or more data messages have been satisfied, and transmit the one or more data messages over the first set of resources.
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公开(公告)号:US12302261B2
公开(公告)日:2025-05-13
申请号:US17647718
申请日:2022-01-11
Applicant: QUALCOMM Incorporated
Inventor: Jung Ho Ryu , Sony Akkarakaran , Tao Luo , Piyush Gupta , Junyi Li , Peter Gaal , Hua Wang , Juan Montojo , Jing Sun , Wooseok Nam
IPC: H04W52/52 , H04W72/1263
Abstract: Aspects of the present disclosure provide techniques for using automatic gain control symbols to indicate a sidelink mini-slot. A method performed by a transmitting user equipment includes transmitting, during a first time portion of a symbol within a slot, a first beam associated with a first receiving user equipment. The first time portion of the symbol is configured to indicate that the first receiving user equipment will receive another transmission from the transmitting user equipment during a first mini-slot within the slot associated with the first time portion. The method may further include transmitting, during a second time portion of the symbol within the slot, a second beam associated with a second receiving user equipment. The second time portion of the symbol is configured to indicate that the second receiving user equipment will receive another transmission from the transmitting user equipment during a second mini-slot within the slot.
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公开(公告)号:US12302247B2
公开(公告)日:2025-05-13
申请号:US17769129
申请日:2020-11-04
Applicant: Qualcomm Incorporated
Inventor: Ananta Narayanan Thyagarajan , Sreekanth Dama , Tanumay Datta , Kapil Bhattad , Xiaoxia Zhang , Jing Sun , Ozcan Ozturk , Shashidhar Vummintala , Gowrisankar Somichetty , Pravjyot Singh Deogun , Ahmed Zaki
Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for improving communications between a user equipment (UE) and a base station in a shared radio frequency spectrum while the UE is operating in a discontinuous reception (DRX) mode. In particular, the UE may be configured to adapt operation in a DRX mode based on whether a base station has access to a shared radio frequency spectrum. For example, the UE may adjust a length of an on-duration for monitoring for a data transmission from the base station, adjust a periodicity for monitoring for control information from the base station, determine whether to keep monitoring for wake-up signaling from the base station, etc. based on whether the base station has access to the shared radio frequency spectrum. Further techniques for improving operation in a DRX mode are also described.
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公开(公告)号:US12302140B2
公开(公告)日:2025-05-13
申请号:US17712956
申请日:2022-04-04
Applicant: QUALCOMM Incorporated
Inventor: Ahmed Abdelaziz Ibrahim Abdelaziz Zewail , Xiaoxia Zhang , Zhifei Fan , Jing Sun , Tao Luo , Wooseok Nam , Mohamed Fouad Ahmed Marzban , Qingjiang Tian , Hemant Saggar
IPC: H04W24/08
Abstract: Certain aspects of the present disclosure provide techniques for frequency tracking and timing tracking using wideband reference signals (RSs). A method that may be performed by a user equipment (UE) includes monitoring for a wideband RS from a network entity when one or more conditions are met, the wideband RS occupying a wider band of frequency resources than a tracking reference signal (TRS) transmitted by the network entity; and performing at least one of frequency tracking or timing tracking based on the monitoring.
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公开(公告)号:US12295012B2
公开(公告)日:2025-05-06
申请号:US18433297
申请日:2024-02-05
Applicant: QUALCOMM Incorporated
Inventor: Xiaoxia Zhang , Zhifei Fan , Kapil Bhattad , Jing Sun , Tamer Kadous , Srinivas Yerramalli
IPC: H04W72/23 , H04L1/1607 , H04L1/1812 , H04L1/1822 , H04L1/1829 , H04L5/00
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) and a base station may communicate in an unlicensed spectrum (e.g., a shared radio frequency spectrum band). As such, the UE may determine a codebook size for transmitting hybrid access request (HARQ) acknowledgement (ACK) feedback with respect to the unlicensed spectrum. Accordingly, the UE may base the HARQ ACK codebook size on a number of HARQ processes with which the UE has been configured. Additionally or alternatively, the UE may base the HARQ ACK codebook size on a number and/or duration of downlink channel monitoring occasions indicated by the base station. In some cases, the UE may base the HARQ ACK codebook size on a combination of the techniques described herein.
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公开(公告)号:US12279271B2
公开(公告)日:2025-04-15
申请号:US17662839
申请日:2022-05-10
Applicant: QUALCOMM Incorporated
Inventor: Iyab Issam Sakhnini , Tao Luo , Xiaoxia Zhang , Jing Sun
IPC: H04W72/23 , H04W72/0446
Abstract: Methods, apparatuses, and computer readable media for indicating a time gap in case of a BWP switch are provided. A base station may transmit to a UE, and the UE may receive from the base station, an indication of a BWP switch from a first BWP to a second BWP. The UE and the base station may communicate with each other via a PDSCH or a PUSCH, in the second BWP based on a time gap. The time gap may be based on at least one of a first time parameter associated with the indication or a second time parameter associated with the BWP switch. The time gap may have a duration that is at least as long as a first duration of a BWP switch delay associated with switching from the first BWP to the second BWP.
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公开(公告)号:US12279246B2
公开(公告)日:2025-04-15
申请号:US17646985
申请日:2022-01-04
Applicant: QUALCOMM Incorporated
Inventor: Ahmed Abdelaziz Ibrahim Abdelaziz Zewail , Zhifei Fan , Jing Sun , Xiaoxia Zhang , Wooseok Nam , Tao Luo
Abstract: Aspects presented herein may enable a UE to limit MCS and/or K1 offset used for communicating with a base station to a threshold based at least in part on an SCS used for the communication. In one aspect, a UE limit at least one of an MCS to being less than or equal to an MCS threshold or a K1 offset to being greater than or equal to a K1 offset threshold based on a subcarrier spacing selected for communication with a base station, the K1 offset being a number of slots between receiving DL data and transmitting ACK/NACK feedback. The UE communicate with the base station based at least on one of the MCS being less than or equal to the MCS threshold or the K1 offset being greater than or equal to the K1 offset threshold.
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公开(公告)号:US12273292B2
公开(公告)日:2025-04-08
申请号:US17575363
申请日:2022-01-13
Applicant: QUALCOMM Incorporated
Inventor: Wooseok Nam , Xiaoxia Zhang , Ahmed Abdelaziz Ibrahim Abdelaziz Zewail , Zhifei Fan , Tao Luo , Jing Sun , Jun Ma
Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may measure a frequency selectivity of a channel between the UE and a base station and may transmit signaling to the base station indicating one or both of a frequency selectivity metric or a recommended demodulation reference signal (DMRS) port multiplexing pattern based on measuring the frequency selectivity. In some aspects, the UE may transmit the signaling to assist the base station in configuring a DMRS port multiplexing pattern based on current channel conditions. For example, if the frequency selectivity metric satisfies a threshold, the UE may recommend a DMRS port multiplexing pattern absent of code division multiplexing (CDM). Alternatively, if the frequency selectivity metric fails to satisfy the threshold, the UE may recommend a DMRS port multiplexing patter including CDM.
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公开(公告)号:US20250106839A1
公开(公告)日:2025-03-27
申请号:US18002446
申请日:2020-09-02
Applicant: QUALCOMM Incorporated
Inventor: Luanxia Yang , Changlong Xu , Jing Sun , Xiaoxia Zhang , Hao Xu
IPC: H04W72/1268 , H04L47/28 , H04W72/566
Abstract: Enhancement of uplink transmissions with survival time or delay sensitive data is discussed. A set of time sensitive resources is preconfigured for one or more user equipment (UEs). A serving base station communicates an identification of the configured time sensitive resources to the UEs. Upon detection of time sensitive data for transmission, a UE may send a time sensitive scheduling request to the base station that indicates the UE will be transmitting time sensitive data on the configured resources. When shared amount multiple UEs, the serving base station may send availability signals to the other UEs when the configured time sensitive resources are being used by another UE and when the configured resources are available again. Other aspects and features are also claimed and described.
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公开(公告)号:US12256398B2
公开(公告)日:2025-03-18
申请号:US17315993
申请日:2021-05-10
Applicant: QUALCOMM Incorporated
Inventor: Yisheng Xue , Jing Sun , Chih-Hao Liu , Xiaoxia Zhang , Xiaojie Wang , Piyush Gupta , Peter Gaal , Shuanshuan Wu , Sony Akkarakaran
IPC: H04W72/04 , H04L1/18 , H04L1/1812 , H04W72/23 , H04W92/18
Abstract: Methods, systems, and devices for wireless communications are described. The method may involve a first user equipment (UE) receiving an indication of a set of sidelink resources and an indication of a set of uplink resources for transmitting sidelink feedback information. The first UE may receive a sidelink shared channel transmission from a second UE and upon receiving the sidelink shared transmission, generate feedback information regarding the sidelink shared channel transmission and transmit the feedback information directly to the base station using the set of uplink resources.
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