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公开(公告)号：US11576199B2
公开(公告)日：2023-02-07
申请号：US17473325
申请日：2021-09-13
申请人： Jianglei Ma , Liqing Zhang , Yu Cao
发明人： Jianglei Ma , Liqing Zhang , Yu Cao
摘要： Systems and methods are disclosed for performing combined grant-free and grant-based UL resource allocation. In a particular embodiment, a network entity sends a first type of UL transmission resource assignment selected from two types of UL transmission resource assignment mechanisms to a UE for grant-free transmission and a second type of UL transmission resource assignment from two types of UL transmission resource assignment mechanism to a UE for grant based transmission. The network entity then receives a first data transmission from the UE for grant free transmission using an assigned transmission resource and a second data transmission from the UE for grant based transmission using an assigned transmission resources. Other embodiments pertain to changing the resource allocation scheme from grant free to grant based for a UE, or vice versa. Examples reasons for doing so may include HARQ re-transmissions.
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2.发明授权公开(公告)号：US11516826B2
公开(公告)日：2022-11-29
申请号：US16544274
申请日：2019-08-19
申请人： Yu Cao , Liqing Zhang , Jianglei Ma
发明人： Yu Cao , Liqing Zhang , Jianglei Ma
摘要： Methods and systems are provided for signaling for semi-static configuration in grant free uplink transmissions. Radio resource control (RRC) signaling is used to provide information from a base station to a user equipment (UE) that configure the grant free transmission resource to be used by the UE. In some implementations, the RRC signaling may be used in conjunction with system information that is transmitted to all UEs and/or Downlink Control Information (DCI) that the UE needs to access subsequent to the RRC signaling. In some implementations, the DCI includes an activation or deactivation indicator that the UE monitors to determine when the UE is allowed to transmit to the BS or should stop transmitting. Implementations allow for grant free transmission resources to be configured on an individual user based and a group basis.
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公开(公告)号：US10813124B2
公开(公告)日：2020-10-20
申请号：US16193365
申请日：2018-11-16
申请人： Yu Cao , Liqing Zhang , Jianglei Ma
发明人： Yu Cao , Liqing Zhang , Jianglei Ma
摘要： There may be situations in which it is beneficial for a user equipment to switch between grant-free uplink wireless transmissions and grant-based uplink wireless transmissions. Systems and methods are disclosed that help facilitate grant-based and grant-free uplink wireless communications, and the switching between the two. For example, systems and methods for mitigating collision between a granted uplink wireless transmission and a grant-free uplink wireless transmission are disclosed herein.
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公开(公告)号：US10595336B2
公开(公告)日：2020-03-17
申请号：US15588229
申请日：2017-05-05
申请人： Jianglei Ma , Liqing Zhang , Yu Cao
发明人： Jianglei Ma , Liqing Zhang , Yu Cao
摘要： Systems and methods are disclosed for performing combined grant-free and grant-based UL resource allocation. In a particular embodiment, a network entity sends a first type of UL transmission resource assignment selected from two types of UL transmission resource assignment mechanisms to a UE for grant-free transmission and a second type of UL transmission resource assignment from two types of UL transmission resource assignment mechanism to a UE for grant based transmission. The network entity then receives a first data transmission from the UE for grant free transmission using an assigned transmission resource and a second data transmission from the UE for grant based transmission using an assigned transmission resources. Other embodiments pertain to changing the resource allocation scheme from grant free to grant based for a UE, or vice versa. Examples reasons for doing so may include HARQ re-transmisisons.
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公开(公告)号：US10779321B2
公开(公告)日：2020-09-15
申请号：US16193365
申请日：2018-11-16
申请人： Yu Cao , Liqing Zhang , Jianglei Ma
发明人： Yu Cao , Liqing Zhang , Jianglei Ma
摘要： There may be situations in which it is beneficial for a user equipment to switch between grant-free uplink wireless transmissions and grant-based uplink wireless transmissions. Systems and methods are disclosed that help facilitate grant-based and grant-free uplink wireless communications, and the switching between the two. For example, systems and methods for mitigating collision between a granted uplink wireless transmission and a grant-free uplink wireless transmission are disclosed herein.
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6.发明授权公开(公告)号：US11546929B2
公开(公告)日：2023-01-03
申请号：US15830928
申请日：2017-12-04
申请人： Yu Cao , Liqing Zhang , Jianglei Ma
发明人： Yu Cao , Liqing Zhang , Jianglei Ma
摘要： Methods and systems are provided for signaling for semi-static configuration in grant free uplink transmissions. Radio resource control (RRC) signaling is used to provide information from a base station to a user equipment (UE) that configure the grant free transmission resource to be used by the UE. In some implementations, the RRC signaling may be used in conjunction with system information that is transmitted to all UEs and/or Downlink Control Information (DCI) that the UE needs to access subsequent to the RRC signaling. In some implementations, the DCI includes an activation or deactivation indicator that the UE monitors to determine when the UE is allowed to transmit to the BS or should stop transmitting. Implementations allow for grant free transmission resources to be configured on an individual user based and a group basis.
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公开(公告)号：US10673593B2
公开(公告)日：2020-06-02
申请号：US15799157
申请日：2017-10-31
申请人： Yu Cao , Liqing Zhang , Jianglei Ma
发明人： Yu Cao , Liqing Zhang , Jianglei Ma
摘要： In a wireless communication system, a grant-free uplink transmission is an uplink transmission sent from a user equipment (UE) to a base station that does not need a dynamic and explicit scheduling grant from the base station. Systems and methods are disclosed for performing hybrid automatic repeat request (HARQ) for grant-free uplink transmissions. Signaling relating to the ACK/NACK for the HARQ, as well as signaling relating to configuring the UE for grant-free uplink transmission, is also disclosed.
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公开(公告)号：US11658788B2
公开(公告)日：2023-05-23
申请号：US16859334
申请日：2020-04-27
申请人： Yu Cao , Liqing Zhang , Jianglei Ma
发明人： Yu Cao , Liqing Zhang , Jianglei Ma
IPC分类号： H04W72/04 , H04L5/00 , H04L1/18 , H04L1/16 , H04L1/1812 , H04L1/1822 , H04L1/1607 , H04L1/1867 , H04L1/1829
CPC分类号： H04L5/0055 , H04L1/1614 , H04L1/1671 , H04L1/1819 , H04L1/1822 , H04L1/1861 , H04L1/1893 , H04L1/1896 , H04L1/1854 , H04L5/0044 , H04L5/0048 , H04W72/0413
摘要： In a wireless communication system, a grant-free uplink transmission is an uplink transmission sent from a user equipment (UE) to a base station that does not need a dynamic and explicit scheduling grant from the base station. Systems and methods are disclosed for performing hybrid automatic repeat request (HARQ) for grant-free uplink transmissions. Signaling relating to the ACK/NACK for the HARQ, as well as signaling relating to configuring the UE for grant-free uplink transmission, is also disclosed.
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公开(公告)号：US11510237B2
公开(公告)日：2022-11-22
申请号：US17119235
申请日：2020-12-11
申请人： Yu Cao , Liqing Zhang , Jianglei Ma
发明人： Yu Cao , Liqing Zhang , Jianglei Ma
摘要： There may be situations in which it is beneficial for a user equipment to switch between grant-free uplink wireless transmissions and grant-based uplink wireless transmissions. Systems and methods are disclosed that help facilitate grant-based and grant-free uplink wireless communications, and the switching between the two. For example, systems and methods for mitigating collision between a granted uplink wireless transmission and a grant-free uplink wireless transmission are disclosed herein.
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公开(公告)号：US11265896B2
公开(公告)日：2022-03-01
申请号：US15871529
申请日：2018-01-15
申请人： Yu Cao , Jianglei Ma , Liqing Zhang
发明人： Yu Cao , Jianglei Ma , Liqing Zhang
摘要： A user equipment in a wireless communication system may operate in different states, e.g. an idle state, an active/connected state, or an inactive state. Depending upon the state the UE is in, the UE may or may not have its uplink transmission synchronized with the uplink transmissions of other UEs. Mechanisms are disclosed for the UE to send a grant-free uplink transmission, even when the UE does not have its uplink transmission synchronized with the uplink transmissions from other UEs.
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