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公开(公告)号：US12137458B2
公开(公告)日：2024-11-05
申请号：US16793756
申请日：2020-02-18
Applicant: QUALCOMM Incorporated
Inventor： Kapil Bhattad , Tanumay Datta , Ananta Narayanan Thyagarajan , Jing Sun , Xiaoxia Zhang
IPC: H04W72/23 , H04W72/1268 , H04W74/08 , H04W74/0808
Abstract: Configured grant operations for new radio (NR) unlicensed spectrum (NR-U) carrier aggregation (CA) are disclosed. In an aspect, a method of wireless communication by a user equipment (UE) may include transmitting uplink (UL) data to a base station according to a configured grant configuration. The method may also include determining a carrier to receive feedback from the base station based on the configured grant configuration. The method may further include receiving feedback from the base station on the carrier in response to the transmitting of the UL data.
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公开(公告)号：US12107651B2
公开(公告)日：2024-10-01
申请号：US18349357
申请日：2023-07-10
Applicant: QUALCOMM Incorporated
Inventor： Jing Sun , Ananta Narayanan Thyagarajan , Kapil Bhattad , Xiaoxia Zhang
IPC: H04W4/00 , H04B7/06 , H04L1/00 , H04L5/00 , H04W74/0808
CPC classification number: H04B7/0626 , H04L1/0013 , H04L5/0051 , H04W74/0808
Abstract: This disclosure provides systems, methods, and apparatuses for determining whether a channel state information reference signal (CSI-RS) is to be transmitted, and a configuration for transmission of the CSI-RS on a wideband based on an outcome of a listen-before-talk (LBT) operation in multiple sub-bands of the wideband. In one aspect, a base station may transmit sub-band usage information indicating sub-band availability before the CSI-RS, thereby allowing a user equipment (UE) to determine whether the CSI-RS will be transmitted and, if so, on which sub-bands the CSI-RS will be transmitted. Furthermore, rate matching configurations are provided based on whether sub-band usage has been received, based on which sub-bands are available. Still further, power configurations and resource element selection criteria are provided for wideband CSI-RS and CSI feedback.
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公开(公告)号：US11924825B2
公开(公告)日：2024-03-05
申请号：US17805712
申请日：2022-06-07
Applicant: QUALCOMM Incorporated
Inventor： Kapil Bhattad , Jing Sun , Xiaoxia Zhang , Ananta Narayanan Thyagarajan
IPC: H04W72/04 , H04L5/00 , H04L5/10 , H04L27/26 , H04W72/0446 , H04W72/1268 , H04W72/14 , H04W72/23
CPC classification number: H04W72/1268 , H04L5/0051 , H04L5/10 , H04L27/2607 , H04W72/0446 , H04W72/23
Abstract: Various aspects of the present disclosure generally relate to wireless communication in a shared spectrum. In some aspects, a user equipment may receive an indication of a set of starting offsets for an uplink communication, wherein the set of starting offsets includes at least one negative starting offset relative to a start of a slot or a mini-slot in which the uplink communication is configured to start; select a starting offset from the set of starting offsets; and transmit the uplink communication, wherein the uplink communication starts at a time indicated by the selected starting offset. Numerous other aspects are provided.
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公开(公告)号：US11870633B2
公开(公告)日：2024-01-09
申请号：US17330114
申请日：2021-05-25
Applicant: QUALCOMM Incorporated
Inventor： Kapil Bhattad , Ananta Narayanan Thyagarajan , Jing Sun , Xiaoxia Zhang
IPC: H04L27/26 , H04W74/08 , H04W72/0446 , H04L5/00 , H04W72/23
CPC classification number: H04L27/2666 , H04L5/00 , H04L5/001 , H04L5/0066 , H04L5/0094 , H04W72/0446 , H04W72/23 , H04W74/0816 , H04W74/0808
Abstract: New radio (NR) shared spectrum (NR-SS) listen before talk (LBT) gap optimizations are disclosed in which an indication, such as the preemption indicator, may provide an indication of a communications gap, in which preemptive communications may occur, to a user equipment (UE) currently engaged in communications, whether the preemptive communications are to another UE or network node or through different signal channels. The gap and preemptive communication may be measured in full symbol lengths, sub-symbol lengths, or interlaces. The communication gap may provide sufficient resources for the preempting node to adequately obtain the shared channel via listen before talk (LBT) procedures, and for the original UE to resume communications after the gap. The communication gap may also be optimally configured in order to provide both the UE and preempting node as much communication resources as possible within the scheduled communication opportunities.
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公开(公告)号：US11742920B2
公开(公告)日：2023-08-29
申请号：US17662665
申请日：2022-05-10
Applicant: QUALCOMM Incorporated
Inventor： Jing Sun , Ananta Narayanan Thyagarajan , Kapil Bhattad , Xiaoxia Zhang
CPC classification number: H04B7/0626 , H04L1/0013 , H04L5/0051 , H04W74/0808
Abstract: This disclosure provides systems, methods, and apparatuses for determining whether a channel state information reference signal (CSI-RS) is to be transmitted, and a configuration for transmission of the CSI-RS on a wideband based on an outcome of a listen-before-talk (LBT) operation in multiple sub-bands of the wideband. In one aspect, a base station may transmit sub-band usage information indicating sub-band availability before the CSI-RS, thereby allowing a user equipment (UE) to determine whether the CSI-RS will be transmitted and, if so, on which sub-bands the CSI-RS will be transmitted. Furthermore, rate matching configurations are provided based on whether sub-band usage has been received, based on which sub-bands are available. Still further, power configurations and resource element selection criteria are provided for wideband CSI-RS and CSI feedback.
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Patent Agency Ranking
公开(公告)号：US11683697B2
公开(公告)日：2023-06-20
申请号：US17814960
申请日：2022-07-26
Applicant: QUALCOMM Incorporated
Inventor： Jing Sun , Ananta Narayanan Thyagarajan , Kapil Bhattad , Xiaoxia Zhang , Pravjyot Singh Deogun
IPC: H04W16/14 , H04W72/0446 , H04W72/23 , H04W74/00 , H04W76/27
CPC classification number: H04W16/14 , H04W72/0446 , H04W72/23 , H04W74/006 , H04W76/27
Abstract: Wireless communications systems and methods related to configured transmissions in a shared radio frequency band are provided. A user equipment (UE) receives, from a base station (BS), an indication of a first configured resource in a shared radio frequency band for a communication in a first direction. The UE receives, from the BS, a first configuration to select between a validation of the first direction or an absence of an invalidation of the first direction for using the first configured resource for the communication. The UE communicates, with the BS, the communication in the first direction using the first configured resource based on the first configuration.
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公开(公告)号：US11595236B2
公开(公告)日：2023-02-28
申请号：US16947683
申请日：2020-08-12
Applicant: QUALCOMM Incorporated
Inventor： Kapil Bhattad , Ananta Narayanan Thyagarajan , Jing Sun , Xiaoxia Zhang , Tae Min Kim
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station and/or a user equipment may determine a time domain resource pattern for a set of demodulation reference signals (DMRSs), wherein the set of DMRSs is included in a Type-B physical downlink shared channel (PDSCH). A base station may transmit, and the user equipment may receive, the set of DMRSs using a set of resources determined based at least in part on the time domain resource pattern. Numerous other aspects are provided.
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公开(公告)号：US11497054B2
公开(公告)日：2022-11-08
申请号：US16793853
申请日：2020-02-18
Applicant: QUALCOMM Incorporated
Inventor： Pravjyot Singh Deogun , Kapil Bhattad , Ozcan Ozturk , Xiaoxia Zhang , Jing Sun , Ananta Narayanan Thyagarajan
Abstract: This disclosure provides systems, methods and apparatuses for listen-before-talk (LBT) failure-based channel congestion measurement and recovery triggering. In one aspect, a user equipment (UE) may determine an LBT metric based on a result of attempting to perform an uplink transmission in connection with an LBT procedure. For example, the UE may determine an absolute quantity of LBT failures, a ratio of unsuccessful uplink transmissions to total uplink transmission attempts, an absolute quantity of LBT successes, or another type of LBT metric. The UE may trigger a recovery action, such as a radio link failure (RLF) recovery action or a bandwidth part switch, based on determining that the LBT metric satisfies a threshold.
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公开(公告)号：US11438772B2
公开(公告)日：2022-09-06
申请号：US17070840
申请日：2020-10-14
Applicant: QUALCOMM Incorporated
Inventor： Jing Sun , Ananta Narayanan Thyagarajan , Kapil Bhattad , Xiaoxia Zhang , Pravjyot Singh Deogun
Abstract: Wireless communications systems and methods related to configured transmissions in a shared radio frequency band are provided. A user equipment (UE) receives, from a base station (BS), an indication of a first configured resource in a shared radio frequency band for a communication in a first direction. The UE receives, from the BS, a first configuration to select between a validation of the first direction or an absence of an invalidation of the first direction for using the first configured resource for the communication. The UE communicates, with the BS, the communication in the first direction using the first configured resource based on the first configuration.
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公开(公告)号：US11382116B2
公开(公告)日：2022-07-05
申请号：US16821678
申请日：2020-03-17
Applicant: QUALCOMM Incorporated
Inventor： Kapil Bhattad , Jing Sun , Xiaoxia Zhang , Ananta Narayanan Thyagarajan
Abstract: Various aspects of the present disclosure generally relate to wireless communication in a shared spectrum. In some aspects, a user equipment may receive an indication of a set of starting offsets for an uplink communication, wherein the set of starting offsets includes at least one negative starting offset relative to a start of a slot or a mini-slot in which the uplink communication is configured to start; select a starting offset from the set of starting offsets; and transmit the uplink communication, wherein the uplink communication starts at a time indicated by the selected starting offset. Numerous other aspects are provided.
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