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公开(公告)号：US20240224177A1
公开(公告)日：2024-07-04
申请号：US18609922
申请日：2024-03-19
发明人： Yanji ZHANG , Mikko SAILY , Yuantao ZHANG
IPC分类号： H04W52/02
CPC分类号： H04W52/0216 , H04W52/0229
摘要： A method comprising: configuring a user equipment in a low activity state to operate according to a grant-free uplink transmission scheme; and in response to detecting at least one condition, scheduling a discontinuous reception state at the user equipment, during which the user equipment is configured to monitor for one or more messages intended for the user equipment.
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公开(公告)号：US20200236657A1
公开(公告)日：2020-07-23
申请号：US16487791
申请日：2017-03-20
发明人： Yuantao ZHANG , Yi ZHANG
IPC分类号： H04W72/04
摘要： In accordance with an example embodiment of the present invention, an apparatus comprising: at least one processor; and at least one memory including computer program code, wherein the at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus to perform at least the following: receive indication of bandwidth allocation for grant-free preamble transmission, receive indication of bandwidth allocation for grant-free resources, wherein the bandwidth allocated for grant-free preamble transmission is the same or larger than the bandwidth allocated for grant-free resources, receive configuration of one or more preamble repetition units, and allocate resources for grant-free preamble and data transmissions, wherein the grant-free preamble is allocated in the configured one or more preamble repetition units and within the bandwidth allocated for grant-free preamble transmission, and data is allocated in the grant-free resources.
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公开(公告)号：US20180205440A1
公开(公告)日：2018-07-19
申请号：US15861406
申请日：2018-01-03
发明人： Mihai ENESCU , Yi ZHANG , Deshan MIAO , Yuantao ZHANG
IPC分类号： H04B7/06 , H04B7/0417
CPC分类号： H04B7/0626 , H04B7/0417 , H04B7/066 , H04B7/0695 , H04B7/088 , H04W72/0413 , H04W72/042
摘要： A method is provided including transmitting a reference signal on a downlink beam to a UE; receiving from the UE a reference signal sequence; determining from the received reference signal sequence at least a preferred uplink beam to pair with the downlink beam; sending downlink signaling to the UE on at least the downlink beam; and receiving uplink signaling from the UE on at least the preferred uplink beam. A further method is provided including receiving a reference signal from a network on a downlink beam; selecting at least one preferred uplink beam to match the downlink beam; selecting a reference signal sequence that corresponds to the selected at least one preferred uplink beam; transmitting the selected reference signal sequence to the network; receiving downlink signaling from the network on at least the downlink beam; and transmitting uplink signaling to the network on the at least one preferred uplink beam.
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公开(公告)号：US20200305198A1
公开(公告)日：2020-09-24
申请号：US16088191
申请日：2016-05-11
发明人： Hongchao LI , Klaus Ingemann PEDERSEN , Yuantao ZHANG , Jingyuan SUN , Zhuyan ZHAO , Deshan MIAO
摘要： A method and apparatus may include receiving configuration signaling from a network node to use a resource pool. The apparatus transmits using contention-based transmission. The method also includes selecting a preamble zone combination from the resource pool. The method may also include transmitting a preamble to the network node using the selected preamble zone combination. A preamble sequence index is used to identify the user equipment.
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公开(公告)号：US20200186306A1
公开(公告)日：2020-06-11
申请号：US16642234
申请日：2017-09-11
发明人： Jingyuan SUN , Yuantao ZHANG , Zhuyan ZHAO , Hong ZHOU
摘要： Embodiments of the present disclosure relate to methods and apparatuses for uplink transmission without an uplink grant. In example embodiments, a method implemented in a terminal device in a communication system is presented. According to this method, the terminal device determines a redundancy version (RV) pattern for a plurality of uplink transmissions. The RV pattern indicates a plurality of RV indices. At least one RV index in the respective plurality of RV indices is periodic in the RV pattern. The terminal device determines coded bits to be transmitted in the plurality of uplink transmissions based at least in part on the RV pattern. The terminal device transmits the coded bits to the network device in at least one transmission of the plurality of uplink transmissions without an uplink grant. By utilizing this periodic structure of the RV pattern, the network device may have more chance to receive the predefined or configured RV index with self-decodable transmissions for example, leading to a higher reliability and better decoding performance for the grant-free communication systems.
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公开(公告)号：US20200068606A1
公开(公告)日：2020-02-27
申请号：US16346969
申请日：2016-11-14
发明人： Yuantao ZHANG , Yan-Ji ZHANG , Yi ZHANG
摘要： Method, apparatus and computer program product are disclosed for transmission in a wireless network. A method comprises: transmitting an uplink data block using grant free; detecting a downlink channel after a predefined timing or in a predefined time window; and determining whether the downlink channel being for a user equipment, wherein the uplink data block comprises information for identifying the user equipment identity, and a part of the user equipment identity is used to scramble a predefined part of the user equipment specific downlink channel.
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公开(公告)号：US20190182837A1
公开(公告)日：2019-06-13
申请号：US16324641
申请日：2016-08-12
发明人： Chunhai YAO , Yuantao ZHANG , Rapeepat RATASUK
IPC分类号： H04W72/04
CPC分类号： H04W72/0453 , H04W72/04 , H04W72/044
摘要： Various communication systems may benefit from appropriate configuration of available bandwidth. These and other communication systems, such as wireless communication systems, may benefit from resource indication for a larger channel bandwidth. One example is further enhanced machine type communication. A method can include determining, by a radio network node, a bandwidth for allocation to a user equipment. The allocated bandwidth can include resources in a single narrowband or a plurality of narrowbands. The method can also include indicating to the user equipment the single narrowband or the plurality of narrowbands and allocated resources in the single narrowband or the plurality of narrowbands.
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8.发明申请公开(公告)号：US20190254038A1
公开(公告)日：2019-08-15
申请号：US15570475
申请日：2016-04-20
发明人： Yuantao ZHANG , Rapeepat RATASUK , Chun Hai YAO , Yan Ji ZHANG
IPC分类号： H04W72/04
摘要： Methods, apparatus and computer program products are disclosed for determining transmission parameters in a wireless network. A method comprises: receiving transmission configuration information used by a network element for determining transmission parameters, wherein the transmission configuration information comprises a first set of parameters comprising at least a first repetition level set index, a first repetition level index, a first resource allocation and a first transport block size index, or a second set of parameters comprising at least a second repetition level index, a second resource allocation, and a second transport block size index, or a third set of parameters comprising at least a modulation and coding scheme level index, a third resource allocation and a third transport block size index;determining transmission parameters used by the network element based at least in part on the transmission configuration information.
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公开(公告)号：US20190021131A1
公开(公告)日：2019-01-17
申请号：US16066094
申请日：2016-01-07
发明人： Yuantao ZHANG , Chunhai YAO , Yanji ZHANG , Rapeepat RATASUK , Mihai ENESCU
摘要： Various communication systems may benefit from time discontinuous transmission. For example, narrow band Internet of things (NB-IoT) may benefit from having transmissions with sufficient time diversity to avoid unnecessary repetition. A method can include configuring a control channel and data channel partitioning pattern within a configured time period. The method can additionally include communicating with at least one user equipment based on the control channel and data channel partitioning pattern.
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10.发明申请公开(公告)号：US20210385757A1
公开(公告)日：2021-12-09
申请号：US17406802
申请日：2021-08-19
发明人： Yi ZHANG , Yuantao ZHANG , Deshan MIAO , Mihai ENESCU
摘要： A technique includes selecting, by a user device independently for each of a plurality of sounding reference signal resources, an uplink data channel power control parameter set for an uplink data channel beam pair to be used to adjust a sounding reference signal transmission power for a sounding reference signal beam pair, adjusting, by the user device for each sounding reference signal resource based on a selected uplink data channel power control parameter set, a sounding reference signal transmission power for a sounding reference signal, and transmitting, by the user device, each of a plurality of power-adjusted sounding reference signals via a corresponding sounding reference signal resource and a corresponding sounding reference signal beam pair.
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