公开(公告)号：US10911200B2

公开(公告)日：2021-02-02

申请号：US16165285

申请日：2018-10-19

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Kelvin Kar Kin Au ,  Liqing Zhang ,  Mohammadhadi Baligh ,  Jianglei Ma ,  Wen Tong

IPC: H04L5/00 ,  H04W74/00

Abstract: A method and system for operating a user equipment (UE) wherein a first set of radio access procedures are supported when the UE is in a first operating state, and a second set of radio access procedures are supported when the UE is in a second operating state.

公开(公告)号：US10904817B2

公开(公告)日：2021-01-26

申请号：US16555268

申请日：2019-08-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Mohamed Adel Salem ,  Jianglei Ma ,  Mohammadhadi Baligh

IPC: H04W40/10 ,  H04W52/02 ,  H04W28/08 ,  H04B7/06 ,  H04W74/08 ,  H04W16/14 ,  H04W72/04 ,  H04W72/08 ,  H04W68/02

Abstract: Operational and environmental efficiency in virtual radio access networks (VRANs) can be improved by offloading data traffic and/or control signaling between physical transmit points (TPs) of a virtual TP. This may allow one or more physical TPs of the virtual TP to be muted in the downlink or uplink direction, thereby reducing energy consumption. The offloading may be performed during relatively short time-intervals such that physical TP are muted for one or more transmission time intervals (TTIs) before being re-activated. The offloading may also be implemented over longer time-intervals in accordance with a traffic engineering (TE) policy. Further it is possible to re-activate a de-activated downlink transmitter of physical TP by monitoring wireless signals via an activated receiver of the physical TP.

公开(公告)号：US10903963B2

公开(公告)日：2021-01-26

申请号：US16266947

申请日：2019-02-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kelvin Kar Kin Au ,  Liqing Zhang ,  Jianglei Ma

IPC: H04L5/00 ,  H04W72/04 ,  H04L5/22

Abstract: System and method embodiments are disclosed to provide mechanisms wireless communications. A method comprises transmitting, by a network device to a non-long term evolution (LTE) user equipment (UE), a bandwidth partitioning information describing a non-LTE bandwidth partition of a system bandwidth. The system bandwidth comprises an LTE bandwidth partition coexisting with the non-LTE bandwidth partition in the system bandwidth, and the LTE bandwidth partition is within the non-LTE bandwidth partition or the LTE bandwidth partition is adjacent to the non-LTE bandwidth partition.

公开(公告)号：US10855501B2

公开(公告)日：2020-12-01

申请号：US15979092

申请日：2018-05-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianglei Ma ,  Lu Rong ,  Liqing Zhang

IPC: H04L27/26 ,  H04L5/00 ,  H04L29/08

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.

公开(公告)号：US10826657B2

公开(公告)日：2020-11-03

申请号：US15065459

申请日：2016-03-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianglei Ma ,  Ming Jia

IPC: H04L12/24 ,  H04L5/00 ,  H04W72/02 ,  H04B7/26 ,  H04L27/26 ,  H04W72/04 ,  H04W28/06 ,  H04W72/00

Abstract: Embodiments are provided for supporting variable sub-carrier spacing and symbol duration for transmitting OFDM or other waveform symbols and associated cyclic prefixes. The symbol duration includes the useful symbol length and its associated cyclic prefix length. The variable sub-carrier spacing and symbol duration is determined via parameters indicating the sub-carrier spacing, useful symbol length, and cyclic prefix length. An embodiment method, by a network or a network controller, includes establishing a plurality of multiple access block (MAB) types defining different combinations of sub-carrier spacing and symbol duration for waveform transmissions. The method further includes partitioning a frequency and time plane of a carrier spectrum band into a plurality of MAB regions comprising frequency-time slots for the waveform transmissions. The MAB types are then selected for the MAB regions, wherein one MAB type is assigned to one corresponding MAB region.

公开(公告)号：USRE48280E1

公开(公告)日：2020-10-20

申请号：US15997280

申请日：2018-06-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianglei Ma ,  Peiying Zhu ,  Wen Tong

IPC: H04W16/18 ,  H04W16/04 ,  H04W16/24

Abstract: An apparatus for adapting hyper cells in response to changing conditions of a cellular network is disclosed. During operation, the apparatus collects data regarding network conditions of the cellular network. In accordance with the collected network condition data, the apparatus changes an association of a transmit point from a second cell ID of a second hyper cell to a first cell ID of a first hyper cell. Virtual data channels, broadcast common control channel and virtual dedicated control channel, transmit point optimization, UE-centric channel sounding and measurement, and single frequency network synchronization are also disclosed.

公开(公告)号：US10784984B2

公开(公告)日：2020-09-22

申请号：US15630085

申请日：2017-06-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Alireza Bayesteh ,  Hosein Nikopour ,  Jianglei Ma

IPC: H04L1/00 ,  H04W72/02 ,  H04W72/04 ,  H04W88/02

Abstract: Systems, methods, and apparatuses for providing waveform adaptation are provided. In an example, a method is provided for identifying a plurality of candidate waveforms, and selecting one of the candidate waveforms for data transmission. The candidate waveforms may be identified in accordance with one or more criteria, such as a transmission capability of the transmitting device, a reception capability of the receiving device, a desired Peak-to-Average-Power-Ratio (PAPR) characteristic, adjacent channel interference (ACI) rejection requirements, spectrum localization requirements, and other criteria. The waveform selected for data transmission may be selected in accordance with one or more waveform selection criteria, such as traffic characteristic, application types, etc.

公开(公告)号：US10778385B2

公开(公告)日：2020-09-15

申请号：US16119841

申请日：2018-08-31

Applicant: Huawei Technologies Co., Ltd.

Inventor： Mahmoud Taherzadeh Boroujeni ,  Alireza Bayesteh ,  Mohammadhadi Baligh ,  Jianglei Ma

IPC: H04L5/00 ,  H04L27/36 ,  H04L27/26

Abstract: Systems and methods are provided for spreading symbols over multiple time-frequency resources that rely on simple base constellations that can be sent over a frequency tone or time slot. A set of input bits (or an input symbol) are mapped to K symbols, and a symbol-to-resource-element mapping is applied that maps the K symbols to resource units. The mapping to the K symbols may be a linear mapping that maps an input symbol to K target tones through a 2K×2 real matrix, where input symbol is a complex point in a base constellation, and is considered as a 2-dimensional real vector. Up to K co-orthogonal 2K×2 real matrices (whose columns are orthogonal to each other) can be associated with the subset of K target tones. Each of the K co-orthogonal matrices can be used for mapping of an independent symbol from a separate steam of symbols which can be associated to a single UE or separate UEs.

公开(公告)号：US10736090B2

公开(公告)日：2020-08-04

申请号：US15860334

申请日：2018-01-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Amine Maaref ,  Kelvin Kar Kin Au ,  Jianglei Ma

IPC: H04W72/04 ,  H04W72/12 ,  H04L5/00 ,  H04W16/14 ,  H04W74/00 ,  H04W88/06

Abstract: A New Radio (NR) control signal that indicates one or more Long Term Evolution (LTE) network parameters may be transmitted to NR UEs to enable the NR UEs to identify which resources carry LTE signal(s). The NR UEs may then receive one or more NR downlink signals over remaining resources in a set of resources without processing those resources that carry LTE signal(s). The NR downlink signals may have a zero power level, or otherwise be blanked, over resources that carry the LTE signal(s).

公开(公告)号：US20200119774A1

公开(公告)日：2020-04-16

申请号：US16710599

申请日：2019-12-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Liqing Zhang ,  Jianglei Ma ,  Kelvin Kar Kin Au ,  Nimal Gamini Senarath

IPC: H04B7/024 ,  H04W24/08 ,  H04L5/00 ,  H04B7/06 ,  H04B7/0413

Abstract: Embodiments are provided for uplink measurement based mechanism and control using user equipment (UE) centric sounding signals. The mechanism provides an alternative to DL-measurement dominated system control. Based on UL-measurements at TPs, the network obtains knowledge of users' channel and timing information, traffic, and interference, and is thus able to perform better control, including TP and UE clustering and optimization, and power control and link adaptation. In an embodiment method, a TP receives one-to-one mapping information indicating a plurality of UE IDs and a plurality of sounding channels assigned to the corresponding UE IDs. When the TP detects a sounding reference signal (SRS) from a UE, the TP is able to identify the UE using the detected SRS and the one-to-one mapping information. The TP then obtains measurement information for the identified UE, enabling better control and communications for uplink and downlink transmissions between multiple TPs and the UE.