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公开(公告)号：US12009956B2
公开(公告)日：2024-06-11
申请号：US18154285
申请日：2023-01-13
发明人： Mohamed Adel Salem
IPC分类号： H04L27/26 , H04L1/1812 , H04W72/21 , H04W72/23 , H04W74/0808
CPC分类号： H04L27/2602 , H04L1/1812 , H04L27/2607 , H04W72/21 , H04W72/23 , H04W74/0808
摘要： Wireless communication between a user equipment (UE) and a base station may occur on unlicensed spectrum. When wirelessly communicating on unlicensed spectrum, there is an expectation that there may be interference from others devices also transmitting on the same resources in the unlicensed spectrum. Systems and methods are therefore disclosed that aim to facilitate wireless communication in unlicensed spectrum. In some embodiments, systems and method are disclosed that are directed to the transmission of uplink control information (UCI) in unlicensed spectrum. The UCI may be or include hybrid automatic repeat request (HARQ) feedback. The HARQ feedback may correspond to a downlink data transmission that was also sent on unlicensed spectrum.
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2.发明公开公开(公告)号：US20230155871A1
公开(公告)日：2023-05-18
申请号：US18154285
申请日：2023-01-13
发明人： Mohamed Adel Salem
IPC分类号： H04L27/26 , H04L1/1812 , H04W74/08 , H04W72/21 , H04W72/23
CPC分类号： H04L27/2602 , H04L27/2607 , H04L1/1812 , H04W74/0808 , H04W72/21 , H04W72/23
摘要： Wireless communication between a user equipment (UE) and a base station may occur on unlicensed spectrum. When wirelessly communicating on unlicensed spectrum, there is an expectation that there may be interference from others devices also transmitting on the same resources in the unlicensed spectrum. Systems and methods are therefore disclosed that aim to facilitate wireless communication in unlicensed spectrum. In some embodiments, systems and method are disclosed that are directed to the transmission of uplink control information (UCI) in unlicensed spectrum. The UCI may be or include hybrid automatic repeat request (HARQ) feedback. The HARQ feedback may correspond to a downlink data transmission that was also sent on unlicensed spectrum.
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公开(公告)号：US11503622B2
公开(公告)日：2022-11-15
申请号：US17031481
申请日：2020-09-24
发明人： Mohamed Adel Salem , Jiayin Zhang
摘要： Methods and devices for grant-free uplink transmission in unlicensed spectrum are provided. A base station (BS) transmits grant-free resource configuration information to one or more electronic devices (EDs). The grant-free resource configuration information is used to configure the ED for GF uplink transmission in unlicensed spectrum. The GF resource configuration information includes GF ED group-specific resource configuration information indicating GF ED group-specific time-frequency (T/F) resources of the unlicensed spectrum for GF uplink transmission. The ED(s) transmit grant-free uplink transmissions over the unlicensed spectrum in accordance with the GF resource configuration information.
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4.发明授权公开(公告)号：US11438107B2
公开(公告)日：2022-09-06
申请号：US17121145
申请日：2020-12-14
发明人： Mohamed Adel Salem , Jiayin Zhang
摘要： Wireless communication between a user equipment (UE) and a base station may occur on unlicensed spectrum. When wirelessly communicating on unlicensed spectrum, there is an expectation that there may be interference from others devices also transmitting on the same resources in the unlicensed spectrum. Systems and methods are therefore disclosed that aim to facilitate wireless communication in unlicensed spectrum. In some embodiments, systems and method are disclosed that are primarily directed to the uplink transmission of hybrid automatic repeat request (HARQ) feedback corresponding to a downlink data transmission, and the downlink data transmission and the HARQ feedback are both sent on unlicensed spectrum.
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5.发明申请公开(公告)号：US20200267565A1
公开(公告)日：2020-08-20
申请号：US16869086
申请日：2020-05-07
发明人： Mohamed Adel Salem
摘要： Methods and devices are provided to enable a cooperating group of user equipments (UEs) to access a second spectrum band as frame based equipment (FBE) for device-to-device (D2D) sidelink transmission within the group. In an embodiment, a UE operating as a cooperating UE (CUE) in a cooperating group of UEs receives a group-specific CPC message from the network over a first spectrum band, the group-specific CPC message comprising information related to channel access for transmission of traffic intended for a target UE (TUE). The UE receives traffic intended for the TUE from the network over the first spectrum band and accesses a second spectrum band as FBE in accordance with a set of channel access parameters corresponding to the traffic to relay the traffic to the TUE via D2D sidelink transmission over the second spectrum band.
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6.发明申请公开(公告)号：US20200260439A1
公开(公告)日：2020-08-13
申请号：US16864829
申请日：2020-05-01
发明人： Mohamed Adel Salem , Toufiqul Islam
摘要： Current HARQ procedures for grant-based uplink transmissions may not be suitable for implementations in which a UE can simultaneously transmit multiple transport blocks (TBs) to a base station. However, in some scenarios, such as in some grant-free uplink transmission schemes, a UE may simultaneously transmit multiple TBs. Systems and methods are disclosed herein for performing HARQ for situations in which a UE simultaneously transmits multiple TBs to a base station. By using the systems and methods described herein, HARQ may therefore be performed in such situations.
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公开(公告)号：US10736083B2
公开(公告)日：2020-08-04
申请号：US15960677
申请日：2018-04-24
发明人： Toufiqul Islam , Mohamed Adel Salem
摘要： A user equipment (UE) in a wireless communication system may be configured to use particular resources to send one or more uplink transmissions. However, sometimes during operation the particular resources the UE is configured to use are not well suited to the channel conditions at that time or result in interference or collision with other uplink transmissions. Systems and method are disclosed in which downlink control information (DCI) may be used to reconfigure one or more resources used by the UE for an uplink transmission. In some embodiments, resource reconfiguration instructions are sent by the base station along with hybrid automatic repeat request (HARQ) feedback. In some embodiments, a unified downlink signaling format is disclosed that may be used for UEs having different capabilities, with the bits of the unified downlink signaling relaying different instructions to different UEs depending upon the capability of the UE.
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公开(公告)号：US10700904B2
公开(公告)日：2020-06-30
申请号：US15430050
申请日：2017-02-10
摘要： Systems and methods of transmitting using different cyclic prefix types are provided. In some embodiments, the cyclic prefix type used changes on a per time interval based on characteristics of the traffic. In some embodiments, different cyclic prefix types are used simultaneously during a time interval for different traffic types.
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公开(公告)号：US10285186B2
公开(公告)日：2019-05-07
申请号：US13932761
申请日：2013-07-01
发明人： Keyvan Zarifi , Mohammadhadi Baligh , Aaron James Callard , Jianglei Ma , Mohamed Adel Salem , Mark Andrew Hawryluck
摘要： A method for operating a centralized controller in a communications network with a plurality of transmission points includes generating a plurality of overlays for the communications network in accordance with first mutual intercell interference levels for transmission point pairs in the communications network, wherein each overlay of the plurality of overlays comprises virtual transmission points, and selecting a first overlay of the plurality of overlays in accordance with a merit measure derived from first user equipments (UEs) operating in the communications network tentatively scheduled to each overlay of the plurality of overlays. The method also includes scheduling a first subset of the first UEs operating in the communications network during a first resource unit in accordance with the selected first overlay.
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公开(公告)号：US10104693B1
公开(公告)日：2018-10-16
申请号：US15610340
申请日：2017-05-31
发明人： Jiayin Zhang , Mohamed Adel Salem , Jun Zhu
摘要： A method for dynamically dividing or consolidating sub-bands in-between Clear Channel Assessment (CCA) status measurements upon detection of a CCA bandwidth adjustment condition is provided. The method includes determining at least a single CCA status for at least a single sub-band during a first period, and detecting a CCA bandwidth adjustment condition for dividing the single sub-band into two or more separate sub-bands, where a combination of the two or more separate sub-bands occupies the same frequency band as the single sub-band. The method also includes determining a separate CCA status for each of the two or more separate sub-bands during a second period. An apparatus for performing this method is also provided.
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