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公开(公告)号：US20210352601A1
公开(公告)日：2021-11-11
申请号：US17308821
申请日：2021-05-05
Applicant: QUALCOMM Incorporated
Inventor： Iyab Issam Sakhnini , Tao Luo , Qiang Wu , Xiaoxia Zhang , Jing Sun , Sungwoo Park , Jun Ma , Mehmet Izzet Gurelli , Ahmed Abdelaziz Ibrahim Abdelaziz Zewail
Abstract: Methods, systems, and devices for wireless communications are described. Generally, a user equipment (UE) may identify an energy per resource element (EPRE) ratio between a synchronization signal block (SSB) symbol containing a primary synchronization signal (PSS) and an SSB symbol containing a secondary synchronization signal (SSS), a physical broadcast channel (PBCH), or both, based on an operating band for the UE, a bandwidth of the SSB symbol containing the PSS and the SSB symbol containing the SSB, the PBCH, or both. The EPRE ratio may be based on maximum regulatory equivalent isotropically radiated power (EIRP) limits, maximum regulatory power spectral density (PSD) limits for the band, or both. The EPRE ratios may be different for different SSB symbols, when different SSB symbols have different bandwidths. A base station may configure and transmit, and a UE may receive, the SSB according to the identified EPRE ratio.
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公开(公告)号：US20210307049A1
公开(公告)日：2021-09-30
申请号：US17177864
申请日：2021-02-17
Applicant: QUALCOMM Incorporated
Inventor： Kiran Venugopal , Tianyang Bai , Junyi Li , Yan Zhou , Mostafa Khoshnevisan , Wooseok Nam , Sungwoo Park , Jung Ho Ryu , Qian Zhang , Ling Ding , Tao Luo
Abstract: Methods, systems, and devices for wireless communication are described. Generally, the described techniques provide for using different configurations for downlink or uplink transmissions associated with different transmission configuration indication (TCI) states (e.g., transmitted on different beams). In one example, a base station may use different configurations for downlink transmissions to a user equipment (UE), and the base station may indicate the different configurations to the UE. For instance, the base station may transmit downlink control information (DCI) indicating a baseline configuration and other configurations as a delta of the baseline configuration. In another example, a base station may dynamically indicate a timing advance to a UE (e.g., in DCI or flow control feedback) for an uplink transmission from the UE associated with a TCI state, and the UE may use the dynamically indicated timing advance for uplink transmissions associated with the TCI state.
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公开(公告)号：US20210298074A1
公开(公告)日：2021-09-23
申请号：US17249732
申请日：2021-03-10
Applicant: QUALCOMM INCORPORATED
Inventor： Sungwoo Park , Arumugam Chendamarai Kannan , Srinivas Yerramalli , Xiaoxia Zhang , Jing Sun , Vinay Chande , Tao Luo , Aleksandar Damnjanovic , Giovanni Chisci
IPC: H04W74/08 , H04B17/336
Abstract: Wireless communications systems and methods related to communications in a network are provided. A first wireless communication device may communicate to a second wireless communication device, a modification to a time parameter associated with at least one of a minimum idle period (MIP) of a frame period or a maximum channel occupancy time (MCOT) of the frame period. Additionally, the first wireless communication device may communicate with the second wireless communication device, a communication signal during the frame period based on the modification to the time parameter.
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公开(公告)号：US20210250786A1
公开(公告)日：2021-08-12
申请号：US17169290
申请日：2021-02-05
Applicant: QUALCOMM Incorporated
Inventor： Tao Luo , Wooseok Nam , Sungwoo Park
IPC: H04W24/02 , H04B17/318
Abstract: Methods, systems, and devices for wireless communications are described for joint communications among a UE and multiple transmission-reception points (TRPs) in which a subset of the multiple TRPs transmit periodic tracking reference signals (TRSs) for use in measurement and beam management at the UE and the multiple TRPs. The subset of TRPs may include TRPs having a relatively large contribution to signals received at the UE, and may transmit periodic (or semi-persistent) TRSs to be measured at the UE. One of the TRPs may provide configuration information to the UE of which TRPs are included in the subset of TRPs, or the UE may determine which TRPs are included in the subset of TRPs based on a signal quality of transmissions associated with each TRP.
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公开(公告)号：US20210227526A1
公开(公告)日：2021-07-22
申请号：US17119845
申请日：2020-12-11
Applicant: QUALCOMM Incorporated
Inventor： Mostafa Khoshnevisan , Xiaoxia Zhang , Tao Luo , Jing Sun , Arumugam Chendamarai Kannan , Sungwoo Park
Abstract: Methods, systems, and devices for signaling for configuring downlink transmissions are described. A user equipment (UE) may receive a configuration message from a base station indicating that a control resource set (CORESET) for a downlink control channel is associated with a set of transmission configuration indicator (TCI) states. The UE may subsequently receive a control message from the base station activating one or more of the TCI states. The UE may decode the downlink control channel based on the configuration message and the one or more activated TCI states. The UE may identify one or more TCI states (e.g., associated with the CORESET) to apply to a reception of a physical downlink shared channel (PDSCH) transmission. The UE may determine to apply one or more of the TCI states activated by the control message. The UE may determine to apply one or more different TCI states.
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Patent Agency Ranking
96.发明申请公开(公告)号：US20210227525A1
公开(公告)日：2021-07-22
申请号：US17118970
申请日：2020-12-11
Applicant: QUALCOMM Incorporated
Inventor： Mostafa Khoshnevisan , Xiaoxia Zhang , Tao Luo , Jing Sun , Arumugam Chendamarai Kannan , Sungwoo Park
Abstract: Methods, systems, and devices for wireless communications are described. In some wireless communications systems, a base station may transmit a control channel such as a PDCCH using one or more control resource sets (CORESETs). A CORESET may be associated with a number of different transmission configuration indicator (TCI) states which may specify information that a UE may use to receive the PDCCH. In some cases, the UE may identify an association between resources of the CORESET and a number of TCI states assigned to a CORESET using various different multiplexing techniques, such as time division multiplexing (TDM). Some associations between the resources of the CORESET and the TCI states may include a mapping of the resources of the CORESET to the different TCI states. The UE may decode the PDCCH based on the different TDM techniques used to configure the CORESET.
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公开(公告)号：US20210219335A1
公开(公告)日：2021-07-15
申请号：US17105321
申请日：2020-11-25
Applicant: QUALCOMM Incorporated
Inventor： Xiaoxia Zhang , Mostafa Khoshnevisan , Wooseok Nam , Tao Luo , Jing Sun , Sungwoo Park , Arumugam Chendamarai Kannan , Vinay Chande , Hua Wang , Yongbin Wei
Abstract: Methods, systems, and devices for wireless communications are described. A base station may configure a user equipment (UE) with a multiple listen-before-talk (LBT) bandwidths, where each LBT bandwidth is associated with one or more downlink control channel candidates of a search space for a control resource set. The UE may monitor the LBT bandwidths during a wakeup signal period for a wakeup signal from the base station. The UE may be configured with a total number of blind hypotheses in the set of blind hypotheses which is equal to or greater than a total number of LBT bandwidths. The UE may determine whether to wake up and monitor an on duration of a discontinuous reception cycle based on detection of the wakeup signal.
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公开(公告)号：US20210195555A1
公开(公告)日：2021-06-24
申请号：US17102956
申请日：2020-11-24
Applicant: QUALCOMM Incorporated
Inventor： Tianyang Bai , Junyi Li , Sungwoo Park , Wooseok Nam , Tao Luo
Abstract: Methods, systems, and devices for wireless communications are described. Some wireless communications networks may implement aspects of a single frequency network (SFN), which may support multicast and broadcast transmissions. In some cases, a base station may use directional beamforming techniques to transmit a message to a user equipment (UE) using a first frequency configuration of the SFN. The base station may adjust the first frequency configuration to a second frequency configuration, and may transmit a retransmission of the message to the UE using the second frequency configuration.
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公开(公告)号：US20210120529A1
公开(公告)日：2021-04-22
申请号：US16987000
申请日：2020-08-06
Applicant: QUALCOMM Incorporated
Inventor： Sungwoo Park , Wooseok Nam , Tao Luo , Kiran Venugopal , Tianyang Bai , Xiaoxia Zhang
Abstract: Methods, systems, and devices for wireless communications are described. A base station may use beamforming to transmit control and data transmissions to a set of user equipments (UEs). A base station may transmit downlink control information (DCI) to UEs that may indicate a set of resource allocations in which the base station may schedule a data transmission, and a respective transmission configuration indicator (TCI) state. The TCI state may indicate which transmission beam the base station may use to transmit a data transmission in a particular resource allocation. The UE may receive and decode the DCI and identify resource allocation information and an index that may indicate one or more TCI states being used for transmitting a broadcast or unicast transmission to the UE within a resource allocation. The UE may select one or more of the resource allocations to monitor for, and subsequently receive, the data transmission.
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公开(公告)号：US20210037512A1
公开(公告)日：2021-02-04
申请号：US16939867
申请日：2020-07-27
Applicant: QUALCOMM Incorporated
Inventor： Arumugam Chendamarai Kannan , Xiaoxia Zhang , Mostafa Khoshnevisan , Tao Luo , Jing Sun , Sungwoo Park
Abstract: Methods, systems, and devices for wireless communications are described. Aspects include configuring a user equipment (UE) to receive control signals from a first transmission reception point (TRP) and a second TRP. A first TRP may transmit a control signal to the UE indicating resources for receiving a medium access control element (MAC-CE), where the control signal includes an indication that associates the MAC-CE with the first TRP. The first TRP may transmit the MAC-CE to the UE which may include a beam update indication for the first TRP. The UE may transmit an acknowledgement to the first TRP based on receiving the MAC-CE. The UE may also transmit an acknowledgment to the second TRP indicating that it has received a beam update indication from the first TRP. In some cases, the first TRP may send a MAC-CE signal to the UE including beam update information for the second TRP.
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