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公开(公告)号：US20210195641A1
公开(公告)日：2021-06-24
申请号：US17124964
申请日：2020-12-17
发明人： Yisheng XUE , Xiaoxia Zhang , Chih-Hao Liu , Aleksandar Damnjanovic , Jing Sun , Yongbin Wei
摘要： Methods, systems, and devices for wireless communication are described. A wireless device (base station or UE) may receive an indication of a listen before talk (LBT) gap for sharing a channel occupancy time (COT), the COT being acquired by another wireless device (base station or UE), and detect whether a slot within the COT is occupied by the other wireless device, the slot occurring prior to the LBT gap. The wireless device may also, responsive to detecting that the slot is occupied by the other wireless device, preform an LBT procedure during the LBT gap, and, responsive to a successful LBT procedure, transmit a signal to the other wireless device within the COT.
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公开(公告)号：US20210112603A1
公开(公告)日：2021-04-15
申请号：US17068585
申请日：2020-10-12
发明人： Yisheng XUE , Jing SUN , Xiaoxia ZHANG , Jing LEI
摘要： Wireless communications systems and methods are provided for validating a physical uplink shared channel (PUSCH) occasion defined for 2-step random access channel (RACH) in case of collisions. For example, the user equipment (UE) may determine whether a collision occurs between the PUSCH occasion for the 2-step RACH and any RACH occasion assigned for either 2-step RACH or 4-step RACH after receiving the RACH configuration or updates from the network. The UE may then exclude the PUSCH occasion from the resource pool for 2-step RACH when a collision occurs.
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公开(公告)号：US20210105823A1
公开(公告)日：2021-04-08
申请号：US16947362
申请日：2020-07-29
发明人： Yisheng XUE , Jing SUN , Xiaoxia ZHANG , Ozcan OZTURK , Jing LEI , Linhai HE , Yi HUANG , Chih-Hao LIU
摘要： Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station (BS) may attempt to receive one or more random access channel (RACH) messages from one or more user equipment (UEs); and transmit, based at least in part on the determination of a completion of processing of any received RACH messages of the one or more RACH messages, an early termination message to a UE to terminate a random access response window. In some aspects, a UE may transmit another RACH message as a response to receiving the early termination message. Numerous other aspects are provided.
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公开(公告)号：US20210100027A1
公开(公告)日：2021-04-01
申请号：US17017324
申请日：2020-09-10
发明人： Yisheng XUE , Xiaoxia ZHANG , Aleksandar DAMNJANOVIC , Jing SUN , Piyush GUPTA , Hua WANG
IPC分类号： H04W74/00 , H04W74/08 , H04W74/02 , H04W8/00 , H04W40/24 , H04W76/14 , H04W52/36 , H04W76/27 , H04W80/02 , H04W72/04 , H04W56/00
摘要： Some aspects described herein relate to receiving a configuration defining resources for transmitting a first message in a two-step random access procedure, wherein the first message includes a random access preamble and a payload, generating a beacon signal for transmitting as the first message, where the beacon signal includes one or more parameters to facilitate discovery by other UEs for pairing in sidelink communications, and transmitting, based on the configuration, the beacon signal as the first message over the resources.
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公开(公告)号：US20210051717A1
公开(公告)日：2021-02-18
申请号：US16990724
申请日：2020-08-11
发明人： Yisheng XUE , Xiaoxia ZHANG , Aleksandar DAMNJANOVIC , Jing SUN , Yongbin WEI
摘要： Certain aspects of the present disclosure provide techniques for reuse one channel access for new radio communications in unlicensed spectrum. A method that may be performed by a first base station (BS) includes occupying a bandwidth, based on a category 4 (CAT4) listen before talk (LBT) procedure on the bandwidth, wherein the CAT4 LBT procedure is based on a first contention window (CW); arranging a category 2 (CAT2) LBT occasion for the bandwidth during a channel occupancy time (COT) for the bandwidth; and receiving an indication that at least a second BS has occupied the bandwidth during the CAT2 LBT occasion.
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公开(公告)号：US20210045096A1
公开(公告)日：2021-02-11
申请号：US16941294
申请日：2020-07-28
发明人： Yisheng XUE , Xiaoxia ZHANG , Aleksandar DAMNJANOVIC , Jing SUN , Qingjiang TIAN , Yongbin WEI
摘要： Certain aspects of the present disclosure provide techniques for new radio (NR) communications in narrowband regions of unlicensed spectrum. A method that may be performed by a user equipment (UE) includes determining, using an energy detector (ED), that received energy in a first bandwidth (BW) is lower than a threshold; and transmitting, in response to determining that received energy in the first BW is lower than the threshold, a first uplink (UL) transmission to a base station (BS) in a second BW smaller than the first BW and contained within the first BW.
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公开(公告)号：US20180115907A1
公开(公告)日：2018-04-26
申请号：US15672649
申请日：2017-08-09
发明人： Aleksandar DAMNJANOVIC , Juan MONTOJO , Yisheng XUE , Michael Mingxi FAN , Xiaoxia ZHANG , Taesang YOO
CPC分类号： H04W16/14 , H04W56/001 , H04W72/0453 , H04W72/1215 , H04W74/0816 , H04W88/06 , H04W88/10
摘要： Techniques for spectrum sharing among operators are provided. A base station (BS) licensed to a first operator monitors, while operating on a first carrier frequency assigned to the first operator, a reservation period on a second carrier frequency assigned to a second operator that shares spectrum with the first operator. The BS determines, based on the monitoring, availability of the second carrier frequency for use by the BS during at least one subsequent data period. The BS determines whether to attempt to reserve access on the second carrier frequency for use during the at least one subsequent data period based on the determined availability.
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公开(公告)号：US20230126677A1
公开(公告)日：2023-04-27
申请号：US17452498
申请日：2021-10-27
发明人： Yisheng XUE , Xiaoxia ZHANG , Chih-Hao LIU , Jing SUN
摘要： Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may encode, for a first set of resource elements (REs), a first layer for sidelink control information. The UE may encode, for a second set of REs, a second layer for sidelink data, wherein the first set of REs and the second set of REs are associated with a same one or more symbols. The UE may transmit, to another UE and based at least in part on applying superposition coded modulation (SCM) to the first layer and the second layer, the sidelink control information using the first set of REs and the sidelink data using the second set of REs. Numerous other aspects are described.
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公开(公告)号：US20230066174A1
公开(公告)日：2023-03-02
申请号：US17759951
申请日：2020-04-15
发明人： Changlong XU , Jing SUN , Xiaoxia ZHANG , Yisheng XUE , Chih-Hao LIU , Ozcan OZTURK
IPC分类号： H04W74/08
摘要： Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first user equipment (UE) may determine, within a channel occupancy time shared with a second UE, one or more contention slot starting times based at least in part on a listen before talk duration and an automatic gain control duration. The first UE may transmit a sidelink communication to the second UE at a starting time selected from one or more of the one or more contention slot starting times. Numerous other aspects are provided.
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20.发明申请公开(公告)号：US20230032794A1
公开(公告)日：2023-02-02
申请号：US17444034
申请日：2021-07-29
发明人： Chih-Hao LIU , Jing SUN , Xiaoxia ZHANG , Yisheng XUE , Peter GAAL , Tao LUO , Jung Ho RYU , Sony AKKARAKARAN , Lik Hang Silas FONG
摘要： Wireless communications systems and methods related to communicating control information are provided. A method of wireless communication performed by a user equipment (UE) may include mapping a power reservation signal of a sub-slot resource pool (RP) to an AGC symbol location of a slot RP and transmitting, to at least one other UE, the power reservation signal, wherein a transmit power level of the power reservation signal is based on an estimated transmit power level associated with at least one sub-slot.
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