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公开(公告)号：US20200083992A1
公开(公告)日：2020-03-12
申请号：US16685755
申请日：2019-11-15
Applicant: QUALCOMM Incorporated
Inventor： Kapil BHATTAD , Alberto RICO ALVARINO
Abstract: Techniques and apparatus for hybrid automatic retransmission request (HARQ) acknowledgement (ACK) bundling in half duplex frequency division duplexing (HD-FDD) systems are provided. One technique includes determining ACK parameter(s) to be used for acknowledging a bundled transmission that includes instance(s) of a channel across subframe(s). An indication of the ACK parameter(s) is signaled to a user equipment (UE). The ACK parameter(s) include a first ACK parameter that conveys a size of the bundled transmission and a second ACK parameter that conveys an amount of time for the UE to delay acknowledging a data transmission in an instance of the channel after receiving the data transmission. The UE may acknowledge the bundled transmission in accordance with the ACK parameter(s).
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公开(公告)号：US20180343085A1
公开(公告)日：2018-11-29
申请号：US15980084
申请日：2018-05-15
Applicant: QUALCOMM Incorporated
Inventor： Vijayvaradharaj TIRUCHERAI MURALIDHARAN , Gowrisankar SOMICHETTY , Shashidhar VUMMINTALA , Kapil BHATTAD , Dominique Francois BRESSANELLI
Abstract: Aspects of the disclosure relate to techniques for mitigating the decoding errors observed at the receiver as a result of puncturing symbols between consecutive subframes having the same transmission direction. To reduce the decoding errors, a plurality of transmission options, each including a number of resource blocks and a modulation and coding scheme (MCS), may be identified. In addition, each transmission option may be associated with one or more puncturing patterns that hinder decoding of a codeword at the receiver. The base station or user equipment (UE) may then select or modify at least one aspect of a scheduling decision involving the communication of the codeword in a given subframe of at least two consecutive subframes to minimize decoding errors. For example, a selected puncturing pattern or a transport block size associated with a selected transmission option may be modified.
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公开(公告)号：US20180332533A1
公开(公告)日：2018-11-15
申请号：US15885103
申请日：2018-01-31
Applicant: QUALCOMM INCORPORATED
Inventor： Kapil BHATTAD , Peter Pui Lok ANG , Alberto RICO ALVARINO , Hao XU , Wanshi CHEN , Peter GAAL
CPC classification number: H04W52/0216 , H04W72/042 , H04W72/1284 , H04W74/0833 , H04W76/28
Abstract: A method for communication includes a user equipment (UE) periodically awakening to monitor for a wake-up signal (WUS) in a wake-up signal search space, the wake-up signal having a shorter length than a length of a control channel communication to allow the UE to determine whether the UE should monitor for the control channel communication.
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公开(公告)号：US20180248671A1
公开(公告)日：2018-08-30
申请号：US15710717
申请日：2017-09-20
Applicant: QUALCOMM Incorporated
Inventor： Kapil BHATTAD , Xiao feng WANG , Alberto RICO ALVARINO , Hao XU
Abstract: There is a need to support narrowband TDD frame structure for narrowband communications. The present disclosure provides a solution by supporting one or more narrowband TDD frame structure(s) for narrowband communications. In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may determine a narrowband TDD frame structure for narrowband communications. The apparatus may also determine a PUSCH format of a group of PUSCH formats for allocating at least one RU to a UE for a NPUCCH. In addition, the apparatus may allocate the at least one RU to the UE using the determined PUSCH format. In one aspect, the RU may include one or more subcarriers in each of one or more slots.
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公开(公告)号：US20180234951A1
公开(公告)日：2018-08-16
申请号：US15724164
申请日：2017-10-03
Applicant: QUALCOMM Incorporated
Inventor： Gowrisankar SOMICHETTY , Kapil BHATTAD , Alberto RICO ALVARINO , Xiao feng WANG , Manikandan CHANDRASEKAR
Abstract: There is a need to support narrowband TDD frame structure for narrowband communications. The present disclosure provides a solution by supporting one or more narrowband TDD frame structure(s) for narrowband communications. In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may determine to transmit a narrowband physical downlink channel in a subframe in a narrowband TDD frame structure of a plurality of narrowband TDD frame structures for narrowband communications. In addition, the apparatus may determine whether the subframe is a special subframe or a downlink subframe when the narrowband TDD frame structure includes one or more special subframes. Further, the apparatus may determine how to transmit a narrowband physical downlink channel based on the determination whether the subframe is a special subframe or a downlink subframe. Additionally, the apparatus may transmit the narrowband physical downlink channel.
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Patent Agency Ranking
公开(公告)号：US20180234170A1
公开(公告)日：2018-08-16
申请号：US15706966
申请日：2017-09-18
Applicant: QUALCOMM Incorporated
Inventor： Arvind SRIDHARAN , Kapil BHATTAD , Manikandan CHANDRASEKAR , Gowrisankar SOMICHETTY , Alberto RICO ALVARINO , Xiao feng WANG
Abstract: There is a need to support narrowband TDD frame structure for narrowband communications. The present disclosure provides a solution by supporting one or more narrowband TDD frame structure(s) for narrowband communications. In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may determine a TDD mode for narrowband communications. The apparatus may determine a TDD frame structure for the narrowband communications from a group of narrowband TDD frame structures. In one aspect, at least one common subframe in each narrowband TDD frame structure in the group of narrowband TDD frame structures may be configured as a downlink subframe. The apparatus may transmit a PSS using the at least one common subframe in the narrowband TDD frame structure determined for the narrowband communications.
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公开(公告)号：US20180227937A1
公开(公告)日：2018-08-09
申请号：US15711810
申请日：2017-09-21
Applicant: QUALCOMM Incorporated
Inventor： Alberto RICO ALVARINO , Kapil BHATTAD , Peter GAAL
Abstract: Certain aspects of the present disclosure relate to methods and apparatus for applying rules to determine when to retune radio components of a user equipment (UE). Certain aspects of the present disclosure provide a method for wireless communications by a UE. The method includes determining first resources assigned to the UE in a first subframe and second resources assigned to the UE for uplink transmissions in a second subframe. The method further includes determining whether to retune radio frequency (RF) circuitry prior to transmitting in the second subframe based on at least one rule involving an overlap between the first resources and second resources.
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公开(公告)号：US20150071387A1
公开(公告)日：2015-03-12
申请号：US14191243
申请日：2014-02-26
Applicant: QUALCOMM Incorporated
Inventor： Xiliang LUO , Wenshu ZHANG , Keith William SAINTS , Ke LIU , Kapil BHATTAD , Alexei Yurievitch GOROKHOV
IPC: H04L1/00
CPC classification number: H04L1/0054 , H04L5/0023 , H04L5/005 , H04L25/0212 , H04L25/067 , H04L27/2656 , H04L27/2675
Abstract: Certain aspects of the present disclosure relate to methods and apparatus for blind detection of cell-specific reference signals. Methods and apparatus are provided for detecting a cell-specific reference signal (CRS) in an orthogonal frequency division multiplexed (OFDM) symbol by a user equipment (UE). The method generally includes predicting a current channel response of a current OFDM symbol based on a channel response of at least one previous OFDM symbol, estimating a noise power level of the current OFDM symbol, forming a log likelihood ratio (LLR) of two detection hypotheses based on the predicted current channel response and the estimated noise power level, comparing the LLR to a pre-determined threshold, and determining that at least one CRS is present in the current OFDM symbol based on the comparison.
Abstract translation: 本公开的某些方面涉及盲细胞特异性参考信号的盲检测方法和装置。 提供了用于由用户设备（UE）检测正交频分复用（OFDM）符号中的小区特定参考信号（CRS）的方法和装置。 该方法通常包括基于至少一个先前OFDM符号的信道响应来预测当前OFDM符号的当前信道响应，估计当前OFDM符号的噪声功率电平，形成两个检测假设的对数似然比（LLR） 基于预测的当前信道响应和估计的噪声功率电平，将LLR与预定阈值进行比较，并且基于该比较确定当前OFDM符号中存在至少一个CRS。
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39.发明申请公开(公告)号：US20250071811A1
公开(公告)日：2025-02-27
申请号：US18943305
申请日：2024-11-11
Applicant: QUALCOMM Incorporated
Inventor： Kapil BHATTAD , Xiaoxia ZHANG , Tanumay DATTA , Ananta Narayanan THYAGARAJA , Jing SUN
IPC: H04W74/0808 , H04W16/14 , H04W74/00
Abstract: Wireless communications systems and methods are provided. A method of wireless communication may include performing a first listen-before-talk (LBT) procedure associated with a channel, wherein a channel occupancy time (COT) for the channel is acquired based on the first LBT being successful, communicating a first communication signal in a first link direction during the COT, switching from the first link direction to a second link direction different from the first link direction, and communicating after the switching, a second communication signal in the second link direction without performing a second LBT.
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公开(公告)号：US20240147362A1
公开(公告)日：2024-05-02
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
CPC classification number: H04W52/0229 , H04W16/14 , H04W76/28
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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