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公开(公告)号:WO2021067719A1
公开(公告)日:2021-04-08
申请号:PCT/US2020/053969
申请日:2020-10-02
Applicant: CONVIDA WIRELESS, LLC
Inventor: AWADIN, Mohamed , LI, Qing , IYER, Lakshmi, R. , LI, Yifan , TSAI, Allan, Y. , ADJAKPLE, Pascal, M. , SVEDMAN, Patrick , ZHANG, Guodong
IPC: H04W72/12
Abstract: A wireless device, such as user equipment (UE) or other apparatus, like may use a transparent mode operation in which the device is not aware of the operation mode of a base station, such as a gNB or other transmission and receive point (TRP), via the use of configurations for Frame Based Equipment (FBE) and Load Based Equipment (LBE) operating modes. A base station may initiate a Channel Occupancy Time (COT) that is an FBE COT or an LBE COT, in which the wireless device follows FBE or LBE procedures accordingly. A variety of criteria may be applied in determining whether to use FBE or LBE procedures, and to switch between them. A network may use indicate the intention to switch operation mode and may do so via implicit or explicit indications. Similarly, a wireless device may autonomously switch operation mode, and may indicate the selected mode to the network.
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公开(公告)号:WO2021030520A1
公开(公告)日:2021-02-18
申请号:PCT/US2020/046052
申请日:2020-08-13
Applicant: CONVIDA WIRELESS, LLC
Inventor: CHEN, Zhuo , ADJAKPLE, Pascal, M. , LI, Qing , ZHANG, Guodong , LI, Yifan , MURRAY, Joseph, M. , DI GIROLAMO, Rocco
Abstract: A Sidelink AS group management function is disclosed for a UE to discover group members and organize them into AS layer sub-groups based on the AS layer group context information. A centralized Sidelink AS group management is disclosed that the Sidelink AS Group Manager discovers group members and organizes them into AS layer sub-groups for a UE. A Subgroup formation and configuration procedure is disclosed that SL AS Group Manager organizes the ULG into AS layer sub-groups, configures UE-to-UE relays for each UE in the ULG and sends the AS group management information to the UE. A distributed Sidelink AS group management method is disclosed that each UE discovers its group members and organizes the ULG into AS layer sub-groups. New Layer 2 structures and procedures are disclosed to enhance bearer management for Sidelink groupcast communications.
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公开(公告)号:WO2019217880A1
公开(公告)日:2019-11-14
申请号:PCT/US2019/031811
申请日:2019-05-10
Applicant: CONVIDA WIRELESS, LLC
Inventor: AWADIN, Mohamed , LI, Qing , IYER, Lakshmi, R. , MURRAY, Joseph, M. , LI, Yifan , ADJAKPLE, Pascal, M. , ZHANG, Guodong , TSAI, Allan, Y.
Abstract: Beam failure recovery may be improved via the use enhanced signaling, counters, and windowing. Signaling may include a beam failure reference signal (BFRS) detection signal, which indicates that an access point (e.g., gNB) has acquired a channel for downlink transmission. Based on the BFRS detection signal, a wireless terminal (e.g., UE) may then monitor a gNB downlink transmission during a maximum channel occupancy time (MCOT). The UE may count missed beam failure reference signal instances and report the count, e.g., via higher layer signaling. Signaling may include a BFRS absence indication reflecting an instance of a BFRS that is not transmitted due to channel unavailability. The UE may then exclude the instance of the BFRS from the count. Signaling may include a gNB response detection signal, which may inform the UE to monitor a gNB downlink transmission. The UE may trigger timer after receiving an access gNB response detection signal.
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公开(公告)号:WO2019051177A1
公开(公告)日:2019-03-14
申请号:PCT/US2018/049879
申请日:2018-09-07
Applicant: CONVIDA WIRELESS, LLC
Inventor: TSAI, Allan, Y. , ZHANG, Guodong , LI, Qing , IYER, Lakshmi, R. , LI, Yifan , MURRAY, Joseph, M. , ADJAKPLE, Pascal, M.
Abstract: The present application is at least directed to an apparatus on a network including a non-transitory memory including instructions stored thereon for re-establishing a remote radio control (RRC) connection with a base station. The apparatus also includes a processor, operably coupled to the non-transitory memory, capable of executing an instruction of determining a radio link failure has occurred between a first bandwidth part (BWP) of the apparatus tuned to a base station. The processor also executes the instruction of initiating a random access (RA) procedure. The processor also executes the instruction of determining whether a configured contention-based physical random access channel (PRACH) resource overlaps with the first BWP. The process further executes the instruction of transmitting a RA preamble including the configured contention-based PRACH resource to the base station. The processor even further executes the instruction of receiving a RA response from the base station.
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公开(公告)号:WO2018232199A1
公开(公告)日:2018-12-20
申请号:PCT/US2018/037682
申请日:2018-06-15
Applicant: CONVIDA WIRELESS, LLC
Inventor: IYER, Lakshmi , ZHANG, Guodong , LI, Qing , TSAI, Allan, Y. , LI, Yifan , ADJAKPLE, Pascal, M. , MURRAY, Joseph, M.
IPC: H04L5/00
Abstract: Disclosed herein are methods, systems, and devices that are associated with downlink (DL) control, grant free (GF) transmission, or initial access. Particularly, disclosed herein are multi beam physical downlink control channel (PDCCH) transmission mechanisms, grant free transmissions mechanisms, demodulation reference signal (DMRS) for physical broadcast channel (PBCH) mechanisms, and DMRS sequence design for new radio-channel state information-reference signal (NR-CSI-RS) and new radio-physical downlink shared channel (PDSCH) (NR-PDSCH), among other things.
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公开(公告)号:WO2018175420A1
公开(公告)日:2018-09-27
申请号:PCT/US2018/023334
申请日:2018-03-20
Applicant: CONVIDA WIRELESS, LLC
Inventor: IYER, Lakshmi, R. , XU, Tianyi , LI, Qing , ADJAKPLE, Pascal, M. , ZHANG, Guodong , MURRAY, Joseph, M. , TSAI, Allan, Y.
IPC: H04W72/04
Abstract: It is recognized herein that, in some cases, URLLC transmissions may preempt a scheduled eMBB transmission. Thus, in accordance with one embodiment, resources are allocated for URLLC data transmission in a manner that minimally impacts eMBB data transmissions. In an example code block groups are configured for efficient multi-bit A/N feedback. Multi-bit A/N methods are disclosed with and without explicit resource allocation. Various preemption mechanisms are also described herein including, for example, puncturing, dropping the tail end of a transport block, and increasing rate matching.
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公开(公告)号:WO2017218785A1
公开(公告)日:2017-12-21
申请号:PCT/US2017/037693
申请日:2017-06-15
Applicant: CONVIDA WIRELESS, LLC
Inventor: LI, Qing , ZHANG, Guodong , ADJAKPLE, Pascal, M. , IYER, Lakshmi, R. , TSAI, Allan, Y. , ZHANG, Qian , CHEN, Wei , MURRAY, Joseph, M. , XU, Tianyi
Abstract: Current approaches to transmitting uplink data in a network often require resources to be granted. In an example, a node or apparatus may configure a plurality of devices to operate in a grant-less mode in accordance with a respective grant-less access allocation, such that, when the plurality of devices transmit messages uplink in the network, the messages are transmitted using frequency resources defined by the respective grant-less access allocation, and the plurality of devices transmit the messages without being granted access to transmit the messages, so as to operate in the grant-less mode.
Abstract translation: 当前在网络中传输上行链路数据的方法通常需要授予资源。 在一个示例中,节点或装置可以将多个设备配置为根据各自的无授权访问分配以无授权模式进行操作,使得当多个设备在网络中发送上行链路消息时,消息 使用由相应的无授权访问分配所定义的频率资源来发送,并且多个设备在没有被授权访问的情况下发送消息来发送消息,从而以无授权模式操作。 p>
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公开(公告)号:WO2017184856A1
公开(公告)日:2017-10-26
申请号:PCT/US2017/028612
申请日:2017-04-20
Applicant: CONVIDA WIRELESS, LLC
Inventor: ADJAKPLE, Pascal, M. , LI, Qing , MURRAY, Joseph, M. , CHEN, Wei
Abstract: Methods, systems, and devices may assist in reducing signaling load that occur based on paging and handover. Methods, systems, and devices may be based on UE states, a radio access network registration area (RRA) or tracking/paging area with different architectural approaches (e.g., hierarchical or distributed), dynamic RRA management, radio access network based paging, and radio access network based user equipment (UE) mobility management.
Abstract translation: 方法,系统和设备可以有助于减少基于寻呼和切换发生的信令负载。 方法,系统和设备可以基于UE状态,具有不同架构方法(例如分层或分布式),动态RRA管理,基于无线接入网络的寻呼的无线电接入网络注册区域(RRA)或跟踪/寻呼区域,以及 基于无线电接入网络的用户设备(UE)移动性管理。 p>
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公开(公告)号:WO2021034628A1
公开(公告)日:2021-02-25
申请号:PCT/US2020/046270
申请日:2020-08-14
Applicant: CONVIDA WIRELESS, LLC
Inventor: IYER, Lakshmi, R. , LI, Qing , AWADIN, Mohamed , ZHANG, Guodong , ADJAKPLE, Pascal, M. , LI, Yifan , CHEN, Zhuo , TSAI, Allan, Y.
Abstract: The present application at least describes a method for obtaining channel access in a network. The method includes a step of selecting, via a gNodeB, a spatial filter from a first set of spatial filters to perform listen before talk (LBT). The method includes a step of detecting, via the gNodeB, a channel in an idle state,. The method also includes a step of obtaining, a directional channel occupancy time (COT) in the channel in a direction of the selected spatial filter. The method also includes a step of transmitting, to a node, a channel access indicator transmission (CAI-T) on a beam in the cot via a spatial filter of a second set of spatial filters. The method further includes a step of receiving, from the node, a channel access indicator response (CAI-R). The method further includes a step of sensing, via short channel sensing and via the spatial filter or another spatial filter of the second set of spatial filters, the channel is clear. The method even further includes a step of sending, via the channel, information to the node using one or more spatial filters of the second set of spatial filters. Other embodiments of this aspect include corresponding computer systems, apparatus, and computer programs recorded on one or more computer storage devices, each configured to perform the actions of the methods.
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公开(公告)号:WO2020092742A1
公开(公告)日:2020-05-07
申请号:PCT/US2019/059123
申请日:2019-10-31
Applicant: CONVIDA WIRELESS, LLC
Inventor: ADJAKPLE, Pascal, M. , LI, Qing , MURRAY, Joseph, M. , ZHANG, Guodong , STARSINIC, Michael, F. , CHEN, Zhuo
Abstract: A discoverer user equipment sends a discovery announcement to a discoveree user equipment via a sidelink service. The announcement includes criteria for a service sought by discoverer. The discoveree assesses the announcement and may respond to the discoverer. The discovery announcement may be a target search discovery announcement or a self-advertisement discovery announcement, and may be unicast, groupcast, or broadcast. The discoverer and discoveree may perform synchronization in support of V2X sidelink communication and may collect driving information pertaining to vehicles associated with the discoverer and discoveree, respectively, such as driving intention, positioning, and environment information. The discoverer may request an authorization for the discovery announcement, and the request may include the driving information. The information in the announcement and the response may include discoverer and discoveree service, platform, and radio capabilities, source identifiers, driving information, radio measurements, group identifiers, and protocol configuration parameters.
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