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1.发明申请公开(公告)号：US20200178218A1
公开(公告)日：2020-06-04
申请号：US16786955
申请日：2020-02-10
发明人： Zhenwei Lu , Deping Liu , Yi Shi
摘要： The present disclosure provides a data sending method. A first terminal device, determines at least two carriers to transmit at least two pieces of data corresponding to a same transport block, and in a one-to-one correspondence with the at least two pieces of data. The at least two pieces of data can be sent by the first terminal to a second terminal device or a network device by using the at least two carriers. When the first terminal device sends data, the first terminal device may send the at least two pieces of data to the second terminal device or the network device on the at least two carriers to improve reliability of data transmission. The at least two pieces of data may be sent simultaneously, to avoid an increased latency by transmissions of the at least two pieces of data in different time units.
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公开(公告)号：US20190320456A1
公开(公告)日：2019-10-17
申请号：US16456153
申请日：2019-06-28
发明人： Jie Ma , Deping Liu
摘要： Embodiments of the present invention provide a device and a method for data transmission in D2D communication. The method includes: transmitting, by transmitting user equipment UE, scheduling signaling to receiving UE, where the scheduling signaling includes frequency domain resource information, a quantity of cycles that can be occupied, or transmission pattern information; and transmitting, by the transmitting UE, user data to the receiving UE according to the scheduling signaling, so that the receiving UE receives the user data according to the scheduling signaling. In the technical solution of the present invention, if there is no feedback from the receiving UE in a D2D communication process, the transmitting UE may repeatedly transmit the user data, and the receiving UE may repeatedly receive the user data, thereby improving reliability of data transmission.
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公开(公告)号：US10945222B2
公开(公告)日：2021-03-09
申请号：US16739699
申请日：2020-01-10
发明人： Zhenwei Lu , Deping Liu , Lei Gao
摘要： A power control method and a terminal device are disclosed. The method includes: sending, by a first terminal device, first data and first sidelink control information corresponding to the first data to at least one second terminal device; receiving, by the first terminal device, at least one piece of power adjustment information from the at least one second terminal device, where the at least one piece of power adjustment information is determined by the at least one second terminal device based on at least one of the first data and the first sidelink control information; determining, by the first terminal device, a transmit power for second data based on the at least one piece of power adjustment information; and sending, by the first terminal device, the second data to the at least one second terminal device at the transmit power.
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公开(公告)号：US10701687B2
公开(公告)日：2020-06-30
申请号：US16046663
申请日：2018-07-26
发明人： Deping Liu , Zhenwei Lu
摘要： A communication method and a communications apparatus are disclosed. In the communication method, a first terminal obtains a resource period parameter, where the resource period parameter is sent by a network-side device or preconfigured by the first terminal. The resource period parameter includes a period duration of each of at least one resource. The first terminal determines a start time unit of a resource period, and the first terminal sends communication data according to the start time unit of the resource period and the resource period parameter.
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公开(公告)号：US20200154373A1
公开(公告)日：2020-05-14
申请号：US16739699
申请日：2020-01-10
发明人： Zhenwei Lu , Deping Liu , Lei Gao
摘要： A power control method and a terminal device are disclosed. The method includes: sending, by a first terminal device, first data and first sidelink control information corresponding to the first data to at least one second terminal device; receiving, by the first terminal device, at least one piece of power adjustment information from the at least one second terminal device, where the at least one piece of power adjustment information is determined by the at least one second terminal device based on at least one of the first data and the first sidelink control information; determining, by the first terminal device, a transmit power for second data based on the at least one piece of power adjustment information; and sending, by the first terminal device, the second data to the at least one second terminal device at the transmit power.
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公开(公告)号：US10212668B2
公开(公告)日：2019-02-19
申请号：US15018348
申请日：2016-02-08
发明人： Deping Liu
摘要： A method for sending a preamble sequence and user equipment. The method includes determining a transmit power for sending a preamble sequence, where the transmit power meets a formula that takes into account a maximum transmit power of user equipment, a downlink power loss, and a target receive power of the preamble sequence. The method also includes sending the preamble sequence according to the determined transmit power.
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公开(公告)号：US20160234787A1
公开(公告)日：2016-08-11
申请号：US15018348
申请日：2016-02-08
发明人： Deping Liu
CPC分类号： H04W52/06 , H04W52/242 , H04W52/28 , H04W52/325 , H04W52/367 , H04W52/50
摘要： The present invention discloses a method for sending a preamble sequence and user equipment. The method includes: determining a transmit power for sending a preamble sequence, where the transmit power meets the following formula: Power=min{Pmax,PREAMBLE_RECEIVED_TARGET_POWERipreamble_transmission_counter+PL}, where Power is the determined transmit power, Pmax is a maximum transmit power of user equipment, PL is obtained by estimating according to a downlink path loss, and PREAMBLE_RECEIVED_TARGET_POWERipreamble_transmission_counter is a target receive power of the preamble sequence, where PREAMBLE_RECEIVED_TARGET_POWERipreamble_transmission_counter=preambleInitialReceivedTargetPower+DELTA_PREAMBLE−Xi+(preamble_transmission_counter−1)*powerRampingStep; and preambleInitialReceivedTargetPower is an initial target receive power of the preamble sequence, DELTA_PREAMBLE is a power offset based on a format of the preamble sequence, powerRampingStep is a power ramp step, preamble_transmission_counter is a repetition count for transmitting the preamble sequence, and Xi is a power offset corresponding to a preamble sequence resource pool i for coverage enhancement random access; and sending the preamble sequence according to the determined transmit power.
摘要翻译： 本发明公开了一种发送前导序列和用户设备的方法。 该方法包括：确定用于发送前导序列的发射功率，其中发射功率满足以下公式：功率= min {Pmax，PREAMBLE_RECEIVED_TARGET_POWERipreamble_transmission_counter + PL}，其中功率是确定的发射功率，Pmax是用户的最大发射功率 设备PL是通过根据下行链路路径损耗进行估计而获得的，PREAMBLE_RECEIVED_TARGET_POWERipreamble_transmission_counter是前导序列的目标接收功率，其中PREAMBLE_RECEIVED_TARGET_POWERipreamble_transmission_counter = preambleInitialReceivedTargetPower + DELTA_PREAMBLE-Xi +（preamble_transmission_counter-1）* powerRampingStep; 并且preambleInitialReceivedTargetPower是前导序列的初始目标接收功率，DELTA_PREAMBLE是基于前导码序列的格式的功率偏移，powerRampingStep是功率斜坡步骤，preamble_transmission_counter是用于发送前导序列的重复计数，Xi是一个功率 对应于用于覆盖增强随机访问的前导序列资源池i的偏移; 以及根据确定的发射功率发送前导序列。
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公开(公告)号：US11792809B2
公开(公告)日：2023-10-17
申请号：US17108721
申请日：2020-12-01
发明人： Deping Liu , Zhenshan Zhao
CPC分类号： H04W72/23 , H04L1/00 , H04L1/0025 , H04W72/52 , H04L2001/0092 , H04W92/18
摘要： A communication method, a network side device, and a terminal are provided. In the method, a network side device selects one group of values from at least two preset groups of values for a transmission parameter set. The network side device sends the selected group of values. A terminal sends communication data based on the group of values of the at least two groups of values of the transmission parameter set.
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公开(公告)号：US11665038B2
公开(公告)日：2023-05-30
申请号：US17088181
申请日：2020-11-03
发明人： Lei Gao , Deping Liu
IPC分类号： H04L27/26 , H04L5/00 , H04W72/04 , H04W72/0446
CPC分类号： H04L27/2607 , H04L5/0048 , H04W72/0446
摘要： A method includes: mapping, by a first terminal device, first information to a first time unit and a second time unit; and sending, by the first terminal device, the first information in the first time unit and the second time unit, where the first time unit includes a first symbol including a first cyclic prefix, the second time unit includes at least one second symbol including a second cyclic prefix, a length of the first cyclic prefix is greater than a length of the second cyclic prefix, and a length of the first time unit is equal to N times a length of the second symbol including the second cyclic prefix in the second time unit.
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公开(公告)号：US11540237B2
公开(公告)日：2022-12-27
申请号：US16883063
申请日：2020-05-26
发明人： Lei Gao , Deping Liu , Zhenwei Lu
摘要： A synchronization method includes: determining a data signal, where a target sequence in the data signal is mapped to at least one symbol that includes the first symbol within a time unit, data in the data signal is mapped to at least one another symbol in the time unit other than the at least one symbol, the first symbol includes a cyclic prefix, and the target sequence is used by a second device to synchronize the data signal; and sending the data signal to the second device in the time unit. In the present disclosure, a sequence used to synchronize a data signal for each transmission is mapped at an equal spacing to at least one symbol that includes the first symbol within a time unit for the current transmission.
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