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公开(公告)号：US20190394754A1
公开(公告)日：2019-12-26
申请号：US16559288
申请日：2019-09-03
Applicant: Huawei Technologies Co., Ltd.
Inventor： Toufiqul Islam , Kelvin Kar Kin Au , Liqing Zhang
Abstract: Systems and apparatus for assigning sub-bands to numerologies are provided. A system bandwidth is divided into bandwidth portions, and the bandwidth portions are used as the unit of assignment for assigning sub-bands to numerologies. Systems and methods are also provided for allocating resource blocks over a bandwidth such as a sub-band. The available bandwidth is divided into sub-band portions, and the bandwidth portions are used as the unit of allocation for allocating resource blocks to user equipment.
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22.发明授权公开(公告)号：US10404510B2
公开(公告)日：2019-09-03
申请号：US16105798
申请日：2018-08-20
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jianglei Ma , Lu Rong , Liqing Zhang
Abstract: It is possible to reduce the implementation complexity associated with dynamic carrier configuration by defining overlapping sets of candidate numerologies for at least some carriers in the network. A common numerology is included in sets of candidate numerologies pre-associated with two different carriers. This reduces the amount of numerologies that need to be supported by the corresponding user equipments (UEs) and base stations, which in turn reduces the complexity of those devices, e.g., less complex hardware, protocol stacks, and software, lower storage and processing requirements, etc. The common numerology specifies a common subset of physical layer parameters for both carriers. In one example, the common numerology specifies the same sub-carrier frequency spacing and symbol duration for both carriers. The common numerology may further specify the same cyclic prefix (CP) length for symbols communicated over both carriers.
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23.发明申请公开(公告)号：US20190182722A1
公开(公告)日：2019-06-13
申请号：US16267027
申请日：2019-02-04
Applicant: Huawei Technologies Co., Ltd.
Inventor： Liqing Zhang , Jianglei Ma , Kelvin Kar Kin Au , Zhihang Yi
Abstract: A network for facilitating wireless radio communication. The network includes a first access area, wherein the access area includes one or more transmission/receive points. At least one transmission/receive point includes a base station that supports wireless communication between a network and user equipment (UE), such as, a mobile device. The network includes a dedicated connection signature (DCS) that is assigned to a UE. The DCS provides for and is used by the UE to maintain active, unified access to the wireless network. More particularly, the DCS provides for active, contention free, and fast access for the UE to the network through transmission/receive points within the first access area, which is of significance to present and future UE centric virtual radio access networks having high densities of mobile and non-mobile users and with high populations of different types of traffic patterns and applications.
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公开(公告)号：US10285175B2
公开(公告)日：2019-05-07
申请号：US15962001
申请日：2018-04-25
Applicant: Huawei Technologies Co., Ltd.
Inventor： Kelvin Kar Kin Au , Jianglei Ma , Liqing Zhang , Zhihang Yi , Hosein Nikopour
Abstract: Methods and devices are provided for communicating data in a wireless channel. In one example, a method includes adapting the transmission time interval (TTI) length of transport container for transmitting data in accordance with a criteria. The criteria may include (but is not limited to) a latency requirement of the data, a buffer size associated with the data, a mobility characteristic of a device that will receive the data. The TTI lengths may be manipulated for a variety of reasons; such as for reducing overhead, satisfy quality of service (QoS) requirements, maximize network throughput, etc. In some embodiments, TTIs having different TTI lengths may be carried in a common radio frame. In other embodiments, the wireless channel may partitioned into multiple bands each of which carrying (exclusively or otherwise) TTIs having a certain TTI length.
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公开(公告)号：US20190123872A1
公开(公告)日：2019-04-25
申请号：US16222650
申请日：2018-12-17
Applicant: Huawei Technologies Co., Ltd.
Inventor： Kelvin Kar Kin Au , Jianglei Ma , Liqing Zhang
Abstract: Different filtered-orthogonal frequency division multiplexing (f-OFDM) frame formats may be used to achieve the spectrum flexibility. F-OFDM waveforms are generated by applying a pulse shaping digital filter to an orthogonal frequency division multiplexed (OFDM) signal. Different frame formats may be used to carry different traffic types as well as to adapt to characteristics of the channel, transmitter, receiver, or serving cell. The different frame formats may utilize different sub-carrier (SC) spacings and/or cyclic prefix (CP) lengths. In some embodiments, the different frame formats also utilize different symbol durations and/or transmission time interval (TTI) lengths.
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Patent Agency Ranking
公开(公告)号：US10200172B2
公开(公告)日：2019-02-05
申请号：US15977850
申请日：2018-05-11
Applicant: Huawei Technologies Co., Ltd.
Inventor： Kelvin Kar Kin Au , Jianglei Ma , Liqing Zhang
Abstract: Different filtered-orthogonal frequency division multiplexing (f-OFDM) frame formats may be used to achieve the spectrum flexibility. F-OFDM waveforms are generated by applying a pulse shaping digital filter to an orthogonal frequency division multiplexed (OFDM) signal. Different frame formats may be used to carry different traffic types as well as to adapt to characteristics of the channel, transmitter, receiver, or serving cell. The different frame formats may utilize different sub-carrier (SC) spacings and/or cyclic prefix (CP) lengths. In some embodiments, the different frame formats also utilize different symbol durations and/or transmission time interval (TTI) lengths.
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公开(公告)号：US20190028246A1
公开(公告)日：2019-01-24
申请号：US16143104
申请日：2018-09-26
Applicant: Huawei Technologies Co., Ltd.
Inventor： Kelvin Kar Kin Au , Jianglei Ma , Liqing Zhang , Jing Qiu
CPC classification number: H04L5/0007 , H04L5/0042 , H04L5/0055 , H04L5/1469 , H04L27/2602
Abstract: A method for wireless communications includes receiving signaling for indicating a time division duplexing (TDD) frame structure configuration from a base station. The TDD frame structure configuration corresponds to a time duration of 0.1 ms, 0.125 ms, 0.2 ms, 0.25 ms, 0.5 ms, or 1.0 ms, the TDD frame structure configuration including two switching points between downlink transmissions and uplink transmissions. The method further includes communicating downlink and uplink transmissions according to the TDD frame structure configuration. The TDD frame structure configuration may further include a guard period for separating the first downlink transmission and the first uplink transmission in the time domain.
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28.发明申请公开(公告)号：US20180359124A1
公开(公告)日：2018-12-13
申请号：US16105798
申请日：2018-08-20
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jianglei Ma , Lu Rong , Liqing Zhang
CPC classification number: H04L27/2607 , H04L5/001 , H04L5/0064 , H04L5/0092 , H04L5/0094 , H04L27/2602 , H04L69/323
Abstract: It is possible to reduce the implementation complexity associated with dynamic carrier configuration by defining overlapping sets of candidate numerologies for at least some carriers in the network. A common numerology is included in sets of candidate numerologies pre-associated with two different carriers. This reduces the amount of numerologies that need to be supported by the corresponding user equipments (UEs) and base stations, which in turn reduces the complexity of those devices, e.g., less complex hardware, protocol stacks, and software, lower storage and processing requirements, etc. The common numerology specifies a common subset of physical layer parameters for both carriers. In one example, the common numerology specifies the same sub-carrier frequency spacing and symbol duration for both carriers. The common numerology may further specify the same cyclic prefix (CP) length for symbols communicated over both carriers.
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公开(公告)号：US10128993B2
公开(公告)日：2018-11-13
申请号：US15078621
申请日：2016-03-23
Applicant: Huawei Technologies Co., Ltd.
Inventor： Kelvin Kar Kin Au , Jianglei Ma , Liqing Zhang , Jing Qiu
Abstract: A time division duplex (TDD) transmission time interval (TTI) communicating transmissions in a first direction may include one or more regions for communicating in a second direction, where the first direction is a transmit direction and the second direction is a receive direction, or vice versa. A radio frame may include TDD TTIs with such regions and/or TDD TTIs without such regions for wireless communication, and these TDD TTIs may further be configured in accordance with different frame structure configurations, such as different TTI lengths, subcarrier spacings or symbol durations.
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公开(公告)号：US20180295618A1
公开(公告)日：2018-10-11
申请号：US16000583
申请日：2018-06-05
Applicant: Huawei Technologies Co., Ltd.
Inventor： Kelvin Kar Kin Au , Liqing Zhang , Jianglei Ma , Keyvan Zarifi
Abstract: In one embodiment, a method for adaptive transmission time intervals (TTIs) includes transmitting, by a communications controller to a user equipment (UE), a segment of a first TDD TTI configuration of a first TDD interval and a second TDD TTI configuration of the first TDD interval, where the first TDD TTI configuration has a first pattern, where the second TDD TTI configuration has a second pattern, where the first pattern is different than the second pattern, where the first TDD TTI configuration has a first uplink TTI segment and a first downlink TTI segment. The method also includes transmitting a first plurality of data on a first TTI in the first downlink TTI segment of the first TDD TTI configurations of the first TDD interval and receiving a second plurality of data on the first uplink segment of the first TDD TTI configuration of the first TDD interval.
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