公开(公告)号：US20210051709A1

公开(公告)日：2021-02-18

申请号：US16993192

申请日：2020-08-13

Applicant: QUALCOMM Incorporated

Inventor： Kapil Bhattad ,  Tanumay Datta ,  Jing Sun ,  Xiaoxia Zhang

IPC: H04W74/00 ,  H04W72/14 ,  H04W74/08 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described that support listen before talk (LBT) for uplink transmissions using multiple subbands. A base station may support communication with a user equipment (UE) via multiple subbands and may transmit an uplink grant to the UE that allocates resources of the multiple subbands for transmission of a shared data channel by the UE. The base station may include an indication within the uplink grant that indicates to the UE to perform a given type of LBT for each subband. After transmitting the uplink grant, the base station may transmit control information or other signaling (e.g., channel occupancy time system information (COT-SI)) that indicates subbands on which the UE is to perform a given type of LBT or other subbands on which the UE is to perform a different type of LBT.

公开(公告)号：US20210051702A1

公开(公告)日：2021-02-18

申请号：US16899506

申请日：2020-06-11

Applicant: QUALCOMM INCORPORATED

Inventor： Kapil Bhattad ,  Ananta Narayanan Thyagarajan ,  Jing Sun ,  Xiaoxia Zhang ,  Mostafa Khoshnevisan

IPC: H04W72/14 ,  H04W72/04 ,  H04L1/18 ,  H04L5/00 ,  H04W76/27

Abstract: Wireless communications systems and methods related to communications in a network that supports usage of configured grant uplink control information (CG-UCI) data are provided. A user equipment (UE) may receive a configuration for a configured grant resource and transmit an UL communication signal in the configured grant resource. The UL communication signal may include a CG-UCI multiplexed with UL data. Additionally, the CG-UCI may indicate whether the UL data includes additional UCI.

公开(公告)号：US20210051696A1

公开(公告)日：2021-02-18

申请号：US16947257

申请日：2020-07-24

Applicant: QUALCOMM INCORPORATED

Inventor： Kapil Bhattad ,  Ananta Narayanan Thyagarajan ,  Tanumay Datta ,  Jing Sun ,  Xiaoxia Zhang ,  Ozcan Ozturk

IPC: H04W72/12 ,  H04W72/14 ,  H04L5/00 ,  H04W74/08

Abstract: Wireless communications systems and methods related to communications in a network are provided. A user equipment (UE) may generate during a first time period, an uplink (UL) communication signal based on a scheduled grant or a configured UL grant. The UE may detect a downlink (DL) communication from a base station (BS) during a second time period after the first time period. The DL communication is devoid of the scheduled grant and the configured UL grant. The UE may transmit to the BS, the UL communication signal based on the scheduled grant or the configured UL grant in response to detecting the DL communication.

公开(公告)号：US10925091B2

公开(公告)日：2021-02-16

申请号：US16056128

申请日：2018-08-06

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Aleksandar Damnjanovic ,  Jing Sun

IPC: H04L12/28 ,  H04W74/08 ,  H04W56/00 ,  H04B7/06 ,  H04L5/00 ,  H04W16/14 ,  H04W48/16 ,  H04W72/04 ,  H04W16/28 ,  H04B7/0408

Abstract: Wireless communications systems and methods related to performing listen-before-talk (LBT) with discovery signal transmissions for spectrum sharing are provided. A wireless communication device senses a channel in a spatial domain based on a plurality of expected beam transmission directions, wherein the wireless communication device is associated with a first network operating entity, and wherein the channel is shared by a plurality of network operating entities including the first network operating entity. The wireless communication device transmits a plurality of discovery signals in one or more of the plurality of expected beam transmission directions during a discovery period to facilitate synchronization in the channel based on the sensing.

公开(公告)号：US10925087B2

公开(公告)日：2021-02-16

申请号：US16353154

申请日：2019-03-14

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Xiaoxia Zhang

IPC: H04W72/14 ,  H04L1/18 ,  H04L5/00 ,  H04W72/04 ,  H04L1/16

Abstract: A transmission opportunity (TO) allows a transmitting device, such as a base station to transmit up to a pre-determined TO duration. For new radio (NR), subcarrier spacing (SCS) is no longer fixed. This may limit a TO duration for a UE to a small portion of the allowed TO duration, for new radio (NR), a transport block (TB) takes up one slot. A method, apparatus, and computer-readable medium are disclosed extend a TB over more than one slot to maximize utilization of a TO duration, for improved resource utilization and service quality. A method, apparatus, and computer-readable medium implemented by a communication device are disclosed to receive a signaling message, to configure a flexible transport block (TB) to extend the TB over more than one slot. Then the communication device may receive a portion of the flexible TB, based on the received signaling message.

公开(公告)号：US10925048B2

公开(公告)日：2021-02-16

申请号：US15910615

申请日：2018-03-02

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Tao Luo ,  Sony Akkarakaran ,  Rahul Malik ,  Akula Reddy ,  Tamer Kadous

IPC: H04L5/00 ,  H04W72/04

Abstract: Certain aspects of the present disclosure relate to communication systems, and more particularly, to a control resource set (coreset) for transmitting physical downlink control channels using a single-carrier waveform in communications systems operating according to new radio (NR) technologies. In an exemplary method, a base station may determine a first control resource set (coreset) of time and frequency resources within a control region of system bandwidth, to transmit a physical downlink control channel (PDCCH) to a user equipment (UE) and transmit the PDCCH to the UE as a single-carrier waveform via the first coreset of time and frequency resources.

公开(公告)号：US10925041B2

公开(公告)日：2021-02-16

申请号：US16153645

申请日：2018-10-05

Applicant: QUALCOMM Incorporated

Inventor： Heechoon Lee ,  Peter Gaal ,  Wanshi Chen ,  Tao Luo ,  Peter Pui Lok Ang ,  Jing Sun

IPC: H04W72/04 ,  H04L5/00 ,  H04L5/14

Abstract: Aspects and techniques relate to scheduling resources for uplink transmissions in wireless communication systems. In some examples, an allocation of resources for uplink may be based on a common reference resource (e.g., a reference physical resource block, PRB) also used for allocation of resources for downlink In other examples, allocation of resources for uplink may be based on a different reference resource. A scheduler may further provide an indication whether the same, common reference resource is used, or a different reference resource. A scheduler may further indicate a different reference resource as needed. Other aspects, embodiments, and features are also claimed and described.

公开(公告)号：US10912012B2

公开(公告)日：2021-02-02

申请号：US16446120

申请日：2019-06-19

Applicant: QUALCOMM INCORPORATED

Inventor： Kaushik Chakraborty ,  Xiaoxia Zhang ,  Jing Sun ,  Tamer Kadous

IPC: H04W48/10 ,  H04W16/14 ,  H04W16/28 ,  H04W24/08 ,  H04W72/04 ,  H04W74/08

Abstract: Wireless communications systems and methods related to initial network access in a network deployed over a downlink unlicensed band paired with one or more UL bands are provided. A first wireless communication device communicates, with a second wireless communication device in a downlink unlicensed band, a first broadcast communication signal during a discovery time period configured based on a network discovery configuration. The first broadcast communication signal includes a configuration for requesting a second broadcast communication signal when there is no second broadcast communication signal detected within the discovery time period. The first wireless communication device communicates, with the second wireless communication device, a request for the second broadcast communication signal based on the configuration. The first wireless communication device communicates, with the second wireless communication device in the downlink unlicensed band, the second broadcast communication signal outside of the discovery time period in response to the request.

公开(公告)号：US20210029641A1

公开(公告)日：2021-01-28

申请号：US16904278

申请日：2020-06-17

Applicant: QUALCOMM Incorporated

Inventor： Mostafa Khoshnevisan ,  Xiaoxia Zhang ,  Ozcan Ozturk ,  Jing Sun ,  Kapil Bhattad

IPC: H04W52/02 ,  H04W28/04 ,  H04L1/18

Abstract: This disclosure provides systems, methods, and apparatuses, including computer programs encoded on computer storage media, for wireless communications and more specifically for handling hybrid automatic repeat request (HARQ) processes with discontinuous reception (DRX) operations. In some implementations, a user equipment (UE) may use a timer to maintain an ON duration in a DRX cycle based on receiving a downlink control information (DCI) message with a data-to-feedback timing indicator (for example, a K1 value) indicating a non-numeric value for a data message. For example, the UE may receive a DCI message with feedback timing for the data message based on maintaining the ON duration. In some other implementations, a UE may use a timer to maintain an ON duration following a feedback opportunity to support dynamic group-based HARQ messaging. For example, the UE may receive a DCI message requesting a retransmission of feedback information based on maintaining the ON duration.

公开(公告)号：US10904871B2

公开(公告)日：2021-01-26

申请号：US16201844

申请日：2018-11-27

Applicant: QUALCOMM Incorporated

Inventor： Yang Yang ,  Jing Jiang ,  Jing Sun ,  Tao Luo ,  Peter Gaal ,  Gabi Sarkis ,  Joseph Binamira Soriaga ,  Heechoon Lee ,  Wanshi Chen

IPC: H04L1/00 ,  H04W72/04 ,  H04W72/14 ,  H04L5/00

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for aggregation level specific PDCCH modification.