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公开(公告)号：US11160117B2
公开(公告)日：2021-10-26
申请号：US16565181
申请日：2019-09-09
Applicant: QUALCOMM Incorporated
Inventor： Sony Akkarakaran , Tao Luo , Xiao Feng Wang
Abstract: Methods, systems, and devices for wireless communications are described that provide for transmission of idle mode requests using random access techniques, and for identifying a response window for a response to idle mode requests. A user equipment (UE) may transmit an idle mode request using random access channel resources, and the response window may be longer than a response window associated with a random access procedure for initial system access. The response window may be determined based at least in part on a base station that is to provide the response to the idle mode request.
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公开(公告)号：US11160077B2
公开(公告)日：2021-10-26
申请号：US16688928
申请日：2019-11-19
Applicant: QUALCOMM Incorporated
Inventor： Renqiu Wang , Hao Xu , Peter Gaal , Alberto Rico Alvarino , Xiao Feng Wang , Seyed Ali Akbar Fakoorian , Jing Lei
IPC: H04W72/04 , H04W4/06 , H04L29/08 , H04L1/08 , H04W4/70 , H04L27/26 , H04W72/00 , H04W72/14 , H04L1/00
Abstract: NB wireless communication involves numerous challenges. A limited frequency dimension may need to be shared by multiple users. At times, large data transmissions, including multiple TBs of data may be transmitted using NB communication, and it may be important that each TB be successfully received by the users. The apparatus may transmit data comprising a plurality of TBs in a narrow band communications system, including repeating a transmission of the plurality of TBs, using any of a number of repetition patterns. The apparatus may use error correction encoding across multiple TBs. The transmission may be a single cell transmission or a multi-cell transmission.
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公开(公告)号：US11160030B2
公开(公告)日：2021-10-26
申请号：US16178527
申请日：2018-11-01
Applicant: QUALCOMM Incorporated
Inventor： Navid Abedini , Xiao Feng Wang , Bilal Sadiq , Sundar Subramanian , Muhammad Nazmul Islam
Abstract: Techniques are provided for power control in directional beam environments. A user equipment (UE) may determine one or more power parameters on a beam-by-beam basis. Each directional uplink transmission beam in a communication link between the UE and the base station may be independently controlled using these beam-specific power parameters. Examples of these beam-specific power parameters may include a maximum output power for a given directional uplink transmission beam and a difference between the maximum output power for the given directional uplink transmission beam and an estimated transmit power for the given directional uplink transmission beam. The UE may report one or more of these beam-specific power parameters to a base station using a beam-specific report.
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公开(公告)号：US20210321299A1
公开(公告)日：2021-10-14
申请号：US17224531
申请日：2021-04-07
Applicant: QUALCOMM Incorporated
Inventor： Alberto Rico Alvarino , Xiao Feng Wang , Seyedkianoush Hosseini , Liangping Ma , Ayan Sengupta , Bharat Shrestha , Jun Ma , Umesh Phuyal , Le Liu , Peter Gaal
Abstract: Methods, systems, and devices for wireless communication are described. Generally, the described techniques provide for establishing rules for scheduling downlink data transmissions and flow control feedback for the downlink data transmissions to avoid confusion at a base station and a user equipment (UE). In one example, when flow control feedback from a UE is disabled for a downlink data transmission, the UE may still operate according to a timing for reporting flow control feedback for the downlink data transmission. In this example, the UE may drop (e.g., refrain from decoding) other downlink data transmissions based on the timing for reporting flow control feedback. In another example, when flow control feedback from a UE is disabled for a downlink data transmission, other downlink data transmissions to the UE may be scheduled according to one or more rules to avoid confusion.
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公开(公告)号：US20210314203A1
公开(公告)日：2021-10-07
申请号：US17347192
申请日：2021-06-14
Applicant: QUALCOMM Incorporated
Inventor： Wei Yang , Yi Huang , Seyong Park , Gokul Sridharan , Peter Gaal , Alexandros Manolakos , Xiao Feng Wang , Tingfang Ji
Abstract: Methods, systems, and devices for wireless communications are described. A device (e.g., a base station or a user equipment (UE)) may identify a sequence length corresponding to a number of resource blocks, and select a modulation scheme based on the sequence length. The device may select, from a set of sequences associated with the modulation scheme, a sequence having the sequence length. In some examples, the set of sequences may include at least one of a set of time domain phase shift keying computer-generated sequences or a set of frequency domain phase shift keying computer-generated sequences. The device may generate a reference signal for a data transmission based on the sequence and transmit the reference signal within the number of resource blocks.
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Patent Agency Ranking
166.发明申请公开(公告)号：US20210266109A1
公开(公告)日：2021-08-26
申请号：US17178083
申请日：2021-02-17
Applicant: QUALCOMM Incorporated
Inventor： Bharat Shrestha , Xiao Feng Wang , Umesh Phuyal , Alberto Rico Alvarino , Liangping Ma
Abstract: Methods, systems, and devices for wireless communications are described in which a physical layer at a user equipment (UE) or a base station may generate feedback for one or more communications that are attempted to be received from a transmitting device. The physical layer feedback may be communicated to the transmitting device in higher layer communications, such as in a medium access control (MAC) layer control element (CE), where the MAC layer is a higher layer than the physical layer in a multi-layer protocol stack of the UE and base station. The physical layer feedback may be communicated after being triggered by one or more conditions at the UE or base station.
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公开(公告)号：US11101971B2
公开(公告)日：2021-08-24
申请号：US16563712
申请日：2019-09-06
Applicant: QUALCOMM Incorporated
Inventor： Kapil Bhattad , Xiao Feng Wang , Alberto Rico Alvarino , Hao Xu
IPC: H04L5/14 , H04L1/00 , H04L27/26 , H04L5/00 , H04L5/22 , H04L5/26 , H04W72/04 , H04W74/08 , H04L1/08 , H04L25/02
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：US20210258898A1
公开(公告)日：2021-08-19
申请号：US17171731
申请日：2021-02-09
Applicant: QUALCOMM Incorporated
Inventor： Liangping Ma , Xiao Feng Wang , Alberto Rico Alvarino , Huilin Xu , Jun Ma , Dan Zhang , Iyavb Issam Sakhnini
Abstract: Methods, systems, and devices for wireless communications are described. A satellite may determine one or more sets set of resources for conveying reference signals to a user terminal. In one example, the satellite may determine a set of resources that includes multiple resource groups each associated with a respective frequency range. In another example, the satellite may determine multiples sets of resources and each set of resources may include resources within respective frequency range. Upon determining the set(s) of resources, the satellite may transmit an indication of the set(s) of resources to a user terminal.
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公开(公告)号：US11057837B2
公开(公告)日：2021-07-06
申请号：US15447914
申请日：2017-03-02
Applicant: QUALCOMM Incorporated
Inventor： Seyed Ali Akbar Fakoorian , Alberto Rico Alvarino , Wanshi Chen , Peter Gaal , Hao Xu , Xiao Feng Wang , Renqiu Wang
IPC: H04B1/713 , H04L5/00 , H04W52/02 , H04W16/02 , H04W52/14 , H04L27/26 , H04L25/02 , H04W4/70 , H04W52/42 , H04W4/90 , H04W4/06
Abstract: A device, such as a base station or user equipment (UE), may identify a narrowband reference signal (NB-RS) energy per resource element (EPRE) for a NB-RS to be transmitted in a wireless transmission. The device may identify a ratio of a narrowband physical downlink shared channel (N-PDSCH) EPRE to the NB-RS EPRE for orthogonal frequency division multiplexing (OFDM) symbols containing neither a cell-specific reference signal (CRS) nor a NB-RS. In deployments where NB transmissions are transmitted in a guard-band adjacent to a wideband system bandwidth, a device may identify a second ratio for N-PDSCH EPRE to CRS EPRE within OFDM symbols containing CRS. In deployments where NB transmissions are transmitted in-band with the wideband system bandwidth, a device may identify a third ratio of NB-RS EPRE to CRS EPRE, and a fourth ratio of N-PDSCH EPRE to NB-RS EPRE within OFDM symbols containing NB-RS transmissions.
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公开(公告)号：US11057250B2
公开(公告)日：2021-07-06
申请号：US16427045
申请日：2019-05-30
Applicant: QUALCOMM Incorporated
Inventor： Alberto Rico Alvarino , Chun-Hao Hsu , Xiao Feng Wang , Peter Gaal , Lei Xiao
Abstract: In order to enable a UE receiving a narrowband signal transmitted using in-band resources to use the LTE reference signals to assist the UE in receiving the narrowband signal using an in-band deployment, a phase rotation employed by the base station may be fixed relative to a known reference position in time. An apparatus for wireless communication at a base station may determine a phase offset for a narrowband signal for transmission using wideband resources, the phase offset having a relationship to a reference point in time and transmit the narrowband signal using the determined phase offset. An apparatus for wireless communication at a UE may receive a narrowband signal having a frequency location within a wideband signal and rotate a symbol of the wideband signal by a per symbol phase offset having a relationship of the phase offset to a reference point in time.
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