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公开(公告)号：US10912080B2
公开(公告)日：2021-02-02
申请号：US16430042
申请日：2019-06-03
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ting Wang , Yuanjie Li , Hao Tang , Zhenfei Tang
Abstract: A signal scrambling method and apparatus, and a signal descrambling method and apparatus are disclosed. In the signal scrambling method, a communications apparatus scrambles a signal by using a scrambling sequence, and sends the scrambled signal. In the signal descrambling method, a communications apparatus receives a signal, and descrambles the signal by using a scrambling sequence. An initial value of the scrambling sequence is determined based on a time unit number corresponding to a frame structure parameter used for transmitting the signal, so that different scrambling sequences can be used to scramble signals that are transmitted by using different frame structure parameters. Therefore, interference randomization can be implemented for signal scrambling, and this can be applicable to various application scenarios in 5G NR to improve performance.
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公开(公告)号：US10903949B2
公开(公告)日：2021-01-26
申请号：US16407404
申请日：2019-05-09
Applicant: Huawei Technologies Co., Ltd.
Inventor： Javad Abdoli , Zhenfei Tang
Abstract: Devices and methods are provided that include transmitting or receiving data and control signals over an air interface on a plurality of bandwidth part (BWP) groups (BWGs) of a carrier, wherein each BWG comprises a plurality of BWPs and each BWP is a set of contiguous resource blocks (RBs). The control signals are transmitted or received on an active BWP of at least one of the BWGs and the data signals are transmitted or received on active BWPs of at least two of the BWGs. Devices and methods are also provided that include transmitting or receiving data and control signals over an air interface on a plurality of active BWPs of a carrier, wherein each active BWP is a set of contiguous RBs, wherein control signals are transmitted or received on at most one active BWP at a time.
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公开(公告)号：US20200296758A1
公开(公告)日：2020-09-17
申请号：US16890006
申请日：2020-06-02
Applicant: Huawei Technologies Co., Ltd.
Inventor： Junchao Li , Hao Tang , Zhenfei Tang
Abstract: An embodiment of this application provides a downlink control information transmission method and an apparatus. The method includes: receiving first downlink control information DCI in search space of a first carrier bandwidth part BWP, where if a frequency domain resource allocation type of the first BWP is a type 0, an Lf-bit frequency domain resource allocation indication in the first DCI is an Lf-bit bitmap, and bits in the Lf-bit bitmap in descending order are respectively corresponding to resource block groups RBG 0 to RBG (Lf−1) in a second BWP; and for one bit in the Lf-bit bitmap, when a value of the bit is t1, an allocated resource includes one RBG corresponding to the bit.
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公开(公告)号：US20200280964A1
公开(公告)日：2020-09-03
申请号：US16876089
申请日：2020-05-17
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Hua Li , Hao Tang , Zhenfei Tang
IPC: H04W72/04
Abstract: Various embodiments provide a communication method and a communications apparatus. In those embodiments, a terminal device receives first indication information and second indication information from a network device. The first indication information indicates a position of a first reference point, the second indication information indicates a first quantity, the first quantity is a quantity of offset units between the first reference point and a second reference point, and the second reference point is an endpoint of a first physical resource block (PRB). The terminal device determines a position of the first PRB based on the first indication information, the second indication information, and an identifier of a subcarrier corresponding to the first reference point. Therefore, the terminal device can complete, without learning of a system bandwidth, a process of determining a PRB corresponding to a start point of a PRB number in the system bandwidth.
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公开(公告)号：US20200252916A1
公开(公告)日：2020-08-06
申请号：US16839645
申请日：2020-04-03
Applicant: Huawei Technologies Co., Ltd.
Inventor： Javad Abdoli , Zhenfei Tang
Abstract: Methods and devices for configuring an initial active downlink bandwidth part as part of an initial access procedure are provided. In one provided method, a base station broadcasts a synchronization signal block (SSB) that includes a control resource set CORESET) configuration index. The CORESET configuration index is one of a plurality of CORESET configuration indexes, each CORESET configuration index being associated with a respective configuration of a CORESET. Each configuration includes a CORESET frequency size, a CORESET time duration, and a frequency offset of the CORESET with respect to the SSB selected from a set of predefined frequency offsets. The initial active downlink bandwidth part is defined as having the same frequency location and bandwidth as the CORESET. The base station transmits, as part of a physical downlink control channel (PDCCH) within the CORESET, information indicating scheduling of remaining minimum system information (RMSI) in a physical downlink shared channel (POSCH).
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Patent Agency Ranking
公开(公告)号：US10700837B2
公开(公告)日：2020-06-30
申请号：US15937559
申请日：2018-03-27
Applicant: Huawei Technologies Co., Ltd.
Inventor： Javad Abdoli , Zhenfei Tang , Jianglei Ma
Abstract: Methods and systems for group common control channel implementation and use are provided. An embodiment a method in a base station for signaling group common control channel information is provided. The method includes determining control information common to a group of user equipment (UEs), the control information comprising time-frequency locations for at least one of a plurality of data channels and a plurality of control channels. The control information formatted in a Downlink Control Information (DCI) format. The method also includes encoding the control information in a group common control channel to generate encoded control information. The method also includes transmitting the encoded control information to the group of UEs.
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公开(公告)号：US20200178315A1
公开(公告)日：2020-06-04
申请号：US16786280
申请日：2020-02-10
Applicant: Huawei Technologies Co., Ltd.
Inventor： Junchao Li , Hao Tang , Zhenfei Tang , Xinghua Song
Abstract: This application provides a resource configuration method, a terminal, and a network device. The method includes: determining a second frequency domain resource based on a physical random access channel frequency domain resource used by a terminal to send a random access preamble, where the second frequency domain resource is used to transmit at least one of physical signal information or physical channel information. In embodiments of this application, when the network device configures a plurality of uplink frequency domain resources used to send a random access message 3, the terminal may determine a to-be-used uplink frequency domain resource according to the method provided in this application.
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公开(公告)号：US10674496B2
公开(公告)日：2020-06-02
申请号：US16041215
申请日：2018-07-20
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Liang Xia , Mingyu Zhou , Chi Gao , Zhenfei Tang
Abstract: Embodiments of the present invention provide a control channel resource transmission method including: obtaining, by a user equipment, a configuration parameter in a candidate control channel set according to a preset protocol and/or higher-layer signaling sent by a base station, where the higher-layer signaling is used to notify the configuration parameter; determining an antenna port according to the obtained configuration parameter; receiving, by using the antenna port, a control channel or a control channel element sent by the base station; and determining, by the base station, the antenna port according to the same configuration parameter as that of the user equipment, and sending, by using the antenna port, the control channel or the control channel element to the user equipment. The embodiments of the present invention are applicable to control channel resource transmission.
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公开(公告)号：US10659912B2
公开(公告)日：2020-05-19
申请号：US16200265
申请日：2018-11-26
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yuanjie Li , Zhenfei Tang
Abstract: A method, a device and a communication system for processing a common search area are provided. The method includes: acquiring resource indication information about a first common search area of a control channel, or resource indication information about a first common search area and resource indication information about at least one second common search area; and determining, according to the resource indication information about the first common search area, or the resource indication information about the first common search area and the resource indication information about at least one second common search area, a location of the first common search area, or locations of the first common search area and at least one second common search area.
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公开(公告)号：US10530547B2
公开(公告)日：2020-01-07
申请号：US16204756
申请日：2018-11-29
Applicant: Huawei Technologies Co., Ltd.
Inventor： Junchao Li , Hao Tang , Zhenfei Tang
Abstract: This application provides a data communication method, a terminal, and a base station. In one embodiment, the terminal receives a first demodulation reference signal based on a first physical resource block index. The first physical resource block index is determined based on a first location in frequency domain, and the first demodulation reference signal is used to demodulate a data channel on which system information is located. The terminal sends and/or receives a second demodulation reference signal based on a second physical resource block index. The second physical resource block index is determined based on a second location in frequency domain, and the second demodulation reference signal is used to demodulate a data channel other than the data channel on which the system information is located.
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