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公开(公告)号：US12250677B2
公开(公告)日：2025-03-11
申请号：US17811997
申请日：2022-07-12
Applicant: APPLE INC.
Inventor： Yushu Zhang , Chunhai Yao , Chunxuan Ye , Dawei Zhang , Haitong Sun , Hong He , Seyed Ali Akbar Fakoorian , Wei Zeng , Weidong Yang
IPC: H04W72/1268 , H04B7/06 , H04L5/00 , H04W72/23
Abstract: Systems and methods using control signaling for uplink frequency selective precoding at a user equipment (UE) are disclosed herein. A base station may indicate a transmission rank indicator (TRI), a wideband transmission precoder matrix indicator (TPMI), and one or more subband TPMI(s) to the UE. The base station may indicate, to the UE, whether to use the wideband TPMI or a subband TPMI to precode a physical uplink shared channel (PUSCH) transmission from the UE to the base station. The UE then precodes (and transmits) the PUSCH accordingly. Methods of UE application of the indicated subband TPMI(s) to subbands of the bandwidth in which a PUSCH may be transmitted are described. Methods accounting for a UE capability as to non-coherent, partial-coherent, and/or coherent precoding are described. Methods of assigning TPMI(s) to subbands in view of multiple transmission reception point (TRP) use by the UE for UE transmission are described.
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公开(公告)号：US12250660B2
公开(公告)日：2025-03-11
申请号：US17593692
申请日：2021-01-14
Applicant: APPLE INC.
Inventor： Chunxuan Ye , Chunhai Yao , Dawei Zhang , Haitong Sun , Hong He , Huaning Niu , Oghenekome Oteri , Seyed Ali Akbar Fakoorian , Sigen Ye , Wei Zeng , Weidong Yang , Yushu Zhang
IPC: H04W72/02 , H04W28/06 , H04W28/26 , H04W72/0446 , H04W72/563
Abstract: Systems and methods used by reduced sensing user equipment (UE) (relative to a full sensing UE) are disclosed herein. A UE performing partial sensing may use knowledge of resource reservation periods for a resource pool of one or more resources to reduce sensing as compared to the full sensing case. A UE performing resource re-evaluation and/or resource pre-emption may use one or more sensing windows that are relatively smaller than windows used in the full sensing case to reduce sensing. A UE performing prioritized resource selection may use a sensing window to determine availability of resources within a prioritized resource selection window with a high reliability, thereby reducing the need to spend power on other sensing methods (which may include full sensing methods). Combinations of these embodiments are also contemplated.
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公开(公告)号：US12250046B2
公开(公告)日：2025-03-11
申请号：US18520202
申请日：2023-11-27
Applicant: Apple Inc.
Inventor： Alexei Davydov , Sameer Pawar , Wook Bong Lee , Yushu Zhang , Victor Sergeev , Joonyoung Cho , Dmitry Dikarev
IPC: H04B7/06
Abstract: Herein described are apparatuses, systems, and methods for measurement and reporting of channel state information within wireless network systems. In embodiments, an apparatus for a user equipment (UE) may include memory to store a rank indicator (RI), a precoding matrix index (PMI), and a channel quality indicator (CQI) of channel state information (CSI) for the UE. The apparatus may further include circuitry to concatenate the RI, the PMI, and the CQI to produce a concatenated CSI element, generate a CSI report that includes the concatenated CSI element, and cause the CSI report to be transmitted to a base station within a single slot. Other embodiments may be described and/or claimed.
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公开(公告)号：US20250071750A1
公开(公告)日：2025-02-27
申请号：US18946463
申请日：2024-11-13
Applicant: Apple Inc.
Inventor： Haitong Sun , Dawei Zhang , Wei Zeng , Yushu Zhang , Hong He , Chunxuan Ye , Huaning Niu , Oghenekome Oteri
IPC: H04W72/1263 , H04B17/336 , H04L5/00 , H04W72/54
Abstract: This disclosure relates to techniques for performing channel state information reporting for multi-transmission-reception-point operation in a wireless communication system. Channel state information configuration information may be provided to a wireless device. The channel state information configuration information may indicate channel measurement resources associated with each of multiple transmission reception points. The wireless device may perform channel state information reporting based on the channel state information configuration information.
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公开(公告)号：US20250071589A1
公开(公告)日：2025-02-27
申请号：US18726402
申请日：2022-01-06
Applicant: APPLE INC.
Inventor： Jie Cui , Yang Tang , Qiming Li , Manasa Raghavan , Xiang Chen , Huaning Niu , Dawei Zhang , Hong He , Yushu Zhang , Haitong Sun
IPC: H04W24/10 , H04W74/0808
Abstract: This disclosure relates to techniques for performing inter radio access technology measurements without a measurement gap in a wireless communication system. A wireless device and a cellular base station may establish a wireless link according to a first radio access technology. The cellular base station may indicate to the wireless device to perform inter radio access technology measurements. The wireless device may determine that it is capable of performing the inter radio access technology measurements without a measurement gap. The wireless device may provide capability information to the cellular base station indicating that the wireless device is capable of performing the inter radio access technology measurements without a measurement gap. The wireless device may perform the inter radio access technology measurements without a measurement gap.
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Patent Agency Ranking
公开(公告)号：US20250070848A1
公开(公告)日：2025-02-27
申请号：US18940336
申请日：2024-11-07
Applicant: Apple Inc.
Inventor： Haitong Sun , Dawei Zhang , Wei Zeng , Yushu Zhang , Hong He , Chunxuan Ye , Huaning Niu , Seyed Ali Akbar Fakoorian , Jie Cui
Abstract: This disclosure relates to techniques for performing beam failure recovery in a high speed single frequency network scenario in a wireless communication system. A wireless device may establish a cellular link with a cellular network according to a single frequency network scheme. The wireless device may determine one or more beam failure detection resources for each of multiple transmission reception points associated with the cellular network. The wireless device may detect beam failure for one or more of the transmission reception points using the beam failure detection resources.
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公开(公告)号：US12238025B2
公开(公告)日：2025-02-25
申请号：US17419426
申请日：2020-01-07
Applicant: Apple Inc.
Inventor： Yushu Zhang , Bishwarup Mondal , Alexei Davydov , Guotong Wang , Avik Sengupta
Abstract: The present disclosure provides systems and methods for mapping transmission configuration indication (TCI) states to demodulation reference signal (DMRS) ports groups in a wireless network. For instance, a TCI state to DMRS ports group mapping of a user equipment (UE) can be determined. Each DMRS port in a DMRS ports group shares a quasi-co-location (QCL) assumption. The TCI state to DMRS ports group mapping comprises multiple TCI state groups. The TCI state to DMRS ports group mapping corresponds each TCI state group to one or more DMRS ports groups. A TCI state group from the DMRS ports group mapping can be selected for the UE. Data indicative of the selected TCI state group and the corresponding one or more DMRS ports groups can be provided to the UE based at least in part on the TCI state group from the DMRS ports group mapping.
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公开(公告)号：US20250063568A1
公开(公告)日：2025-02-20
申请号：US18761044
申请日：2024-07-01
Applicant: Apple Inc.
Inventor： Fangli Xu , Yushu Zhang , Haitong Sun , Sarma V. Vangala , Wei Zeng , Dawei Zhang , Yuchul Kim
Abstract: An example method for wireless communication includes: transmitting by a base station, to a user device in a reduced power state, resource information for receiving a channel state information reference signal (CSI-RS) and tracking reference signal (TRS); transmitting the CSI-RS and TRS based on the transmitted resource information to the user device, wherein the user device has exited the reduced power state; determining whether there is paging information to transmit in a first physical downlink shared channel (PDSCH) transmission for the user device; transmitting a downlink control information message, wherein the downlink control information message is based on the determination that there is paging information for the user device, and wherein the user device has synchronized with the base station; and transmitting the first PDSCH transmission, based on the determination that there is paging information for the user device.
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公开(公告)号：US12231204B2
公开(公告)日：2025-02-18
申请号：US17442108
申请日：2020-08-04
Applicant: Apple Inc.
Inventor： Wei Zeng , Dawei Zhang , Haitong Sun , Hong He , Oghenekome Oteri , Weidong Yang , Sigen Ye , Chunxuan Ye , Chunhai Yao , Jie Cui , Yang Tang , Yushu Zhang
Abstract: This disclosure relates to performing beam failure recovery during an inter-cell connection involving a UE in communication with one or more base stations in a cellular communication system. In various embodiments, a user equipment determines one or more beam failures by monitoring one or more reference signals transmitted by one or more base stations, where the UE is connected to the one or more base stations. The UE further performs candidate beam detection by monitoring at least one candidate reference signal that is transmitted by one or more candidate base stations, where at least one candidate base station (a first candidate base station) is different from the one or more base stations to which the UE was previously communicating. The UE selects the first candidate base station based on the candidate beam detection, and transmits a beam failure recovery request (BFRQ) message to the first candidate base station based on the selection.
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公开(公告)号：US12224811B2
公开(公告)日：2025-02-11
申请号：US17418092
申请日：2020-01-02
Applicant: Apple Inc.
Inventor： Yushu Zhang , Yingzhu Zhao , Guotong Wang , Victor Sergeev , Alexei Davydov
IPC: H04B17/336 , H04B7/06 , H04W24/10 , H04B5/72 , H04L25/02
Abstract: Systems, apparatuses, methods, and computer-readable media are provided for framework of layer 1 signal-to-interference plus noise ratio (L1-SINR) measurement and reporting based on channel measurement and interference measurement. The channel measurement is performed on a first set of reference signal (RS) resources, and the interference measurement is performed on a second set of RS resources. Each of the second set of RS resources is mapped to each of the first set of RS resources. The L1-SINR is determined from a first RS resource of the first set of RS resources and a second RS resource of the send set of RS resources, where the first RS resource is mapped to the second RS resource. A message including the L1-SINR is generated and transmitted to the access node.
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