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公开(公告)号：US20200267775A1
公开(公告)日：2020-08-20
申请号：US16866731
申请日：2020-05-05
Applicant: Huawei Technologies Co., Ltd.
Inventor： Lei Wang , Yan Chen , Xiuqiang Xu , Yiqun Wu , Yi Wang
Abstract: A communications method and apparatus, the method including sending, by a terminal device, a random access request to a network device, where the random access request comprises a random access preamble and uplink data, receiving, by the terminal device, a random access response sent by the network device, and performing, by the terminal device, a state transition AND/OR operation corresponding to a message format of the random access response.
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公开(公告)号：US10727915B2
公开(公告)日：2020-07-28
申请号：US16402897
申请日：2019-05-03
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yiqun Wu , Yinggang Du , Yan Chen
IPC: H04B7/0456 , H04W72/04 , H04L5/00 , H04B7/06 , H04L25/03
Abstract: This application relates to the mobile communications field, and in particular, to a data processing technology in a wireless communications system. A data processing method includes: generating, by a transmitting device based on a stream of bits, one layer of modulation symbol sequence that includes N modulation vectors, any modulation vector Ai includes U modulation symbols, U≥2, N≥i≥1, and N is a positive integer; and processing, by the transmitting device, the modulation vector Ai using a matrix Bi to generate a modulation matrix yi, each modulation matrix includes T elements in a first dimension, T is a quantity of space domain resources, T≥2, and the modulation matrix yi is used to map the stream of bits stream onto the T space domain resources. According to the solutions provided in this application, space diversity can be implemented in code domain, so that transmission reliability is improved.
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公开(公告)号：US10660123B2
公开(公告)日：2020-05-19
申请号：US15872991
申请日：2018-01-17
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xiuqiang Xu , Yan Chen , Yalin Liu
Abstract: The present invention discloses a method and an apparatus for obtaining configuration information of a grant-free transmission unit. A centrally configured network element sends configuration information of a grant-free transmission unit of an access device to the access device, where the grant-free transmission unit refers to a transmission resource used for grant-free transmission, and the configuration information of the grant-free transmission unit includes at least one or more of the following information: information about the grant-free transmission unit or information about a grant-free transmission control mechanism. By using the method and the apparatus for obtaining configuration information of a grant-free transmission unit, an access device can obtain configuration information of a grant-free transmission unit.
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公开(公告)号：US10554328B2
公开(公告)日：2020-02-04
申请号：US15858843
申请日：2017-12-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xiuqiang Xu , Yalin Liu , Yan Chen
Abstract: Embodiments of the present invention provide a data transmission method and apparatus. The method includes: determining a contention transmission unit CTU to be used by to-be-sent uplink data, where the CTU is a transmission resource including at least a time domain resource, a frequency domain resource, and a code domain resource; encoding the to-be-sent uplink data by using N different code element groups in the code domain resource corresponding to the determined CTU, to obtain N groups of encoded data, where N is a positive integer greater than or equal to 2; and sending the N groups of encoded data by using the time domain and frequency domain resources that are corresponding to the determined CTU. According to the embodiments of the present invention, data reception reliability at a receive end can be improved.
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公开(公告)号：US10547486B2
公开(公告)日：2020-01-28
申请号：US16356712
申请日：2019-03-18
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Meng Cheng , Yiqun Wu , Yan Chen
Abstract: A data transmission method and apparatus are provided. The method includes: modulating, based on a codebook, every N information bits of to-be-transmitted data into one M-dimensional modulation symbol, where the codebook is generated based on an M-dimensional modulation constellation, the M-dimensional modulation constellation includes M modulation constellations, a constellation point in an mth modulation constellation in the M modulation constellations is obtained by mapping N information bits based on an mth information bit subset, the mth information bit subset includes information bits on some locations in the N information bits, and a union set of M information bit subsets respectively corresponding to the M modulation constellations is the N information bits, where M and N are integers greater than or equal to 2, and m is 1, 2, . . . , or M; and sending the generated M-dimensional modulation symbol. The technical solutions can reduce complexity when a modulation signal is demodulated.
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Patent Agency Ranking
公开(公告)号：US20200015260A1
公开(公告)日：2020-01-09
申请号：US16557060
申请日：2019-08-30
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yan Chen , Yi Wang , Yinggang Du , Xiuqiang Xu , Liqing Zhang
Abstract: Methods and systems for dynamically activate and deactivate an allocated resource for a UE to make grant-free uplink transmission are provided. In one embodiment, a user equipment (UE) receives a Radio Resource Control (RRC) signal. The RRC signal specifies grant-free (GF) configuration information. The GF configuration information comprises an activation field and at least one other GF resource configuration field. The activation field indicates whether the UE may perform GF uplink (UL) transmissions without waiting for a downlink control information (DCI) message. Then, the UE performs a GF UL transmission in accordance with the GF configuration information in the RRC signal.
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公开(公告)号：US20190306000A1
公开(公告)日：2019-10-03
申请号：US16444196
申请日：2019-06-18
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xiangming Meng , Yan Chen , Yiqun Wu , Alireza Bayesteh
Abstract: A data transmission method and device, the method including receiving, by a network device, first data sent by a first terminal device on a multiplexing resource, wherein the first data is generated according to a first multiple access signature (MAS), receiving, by the network device, second data sent by a second terminal device on the multiplexing resource, wherein the second data is generated according to a second MAS, and wherein the first MAS and the second MAS have at least one of different demodulation reference signals (DMRSs) or different preamble sequences, and detecting, by the network device, from the multiplexing resource, according to the first MAS and the second MAS, the first data and the second data that are sent on the multiplexing resource.
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公开(公告)号：US10361896B2
公开(公告)日：2019-07-23
申请号：US15473085
申请日：2017-03-29
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yiqun Wu , Shunqing Zhang , Yan Chen
Abstract: Embodiments of the present invention provide a data communication method and a related device. The data communication method may include performing, by a first communications device, power adjustment on Q codebooks using Q power factors, to obtain power-adjusted Q codebooks, where Q is a positive integer, and the Q power factors and the Q codebooks are in a one-to-one correspondence and mapping, by the first communications device, Q to-be-transmitted bit sequences to Q codewords in the power-adjusted Q codebooks, where the Q bit sequences and the Q codewords are in a one-to-one correspondence. The method also includes obtaining, by the first communications device, a modulation symbol based on the Q codewords and sending, by the first communications device, the modulation symbol on a resource block.
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公开(公告)号：US10264601B2
公开(公告)日：2019-04-16
申请号：US15687293
申请日：2017-08-25
Applicant: Huawei Technologies Co., Ltd.
Inventor： Lei Wang , Xiuqiang Xu , Yan Chen
IPC: H04W72/12 , H04L5/00 , H04W72/04 , H04B7/00 , H04B7/0452 , H04B7/0456 , H04L1/00 , H04L25/00
Abstract: The present disclosure describes a downlink control information transmission method and apparatus. The method includes: determining multiple terminal devices used for downlink scheduling; determining downlink control information used by the multiple terminal devices to receive downlink data flows, where the downlink control information includes common control information shared by the multiple terminal devices, dedicated control information of each of the multiple terminal devices, and device identifier information of each terminal device, and an order of the device identifier information of each terminal device is the same as an order of the dedicated control information of each terminal device; and sending the downlink control information to the multiple terminal devices.
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公开(公告)号：US10243775B2
公开(公告)日：2019-03-26
申请号：US15443187
申请日：2017-02-27
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Shunqing Zhang , Lei Lu , Yan Chen
Abstract: The present invention discloses a solution including: receiving channel quality fed back by at least two user terminals; determining, according to the received channel quality fed back by the at least two user terminals, a user terminal that needs to be served by each transmit antenna of a base station device; for user terminals served by a same transmit antenna, configuring, according to channel quality fed back by the user terminals served by the same transmit antenna, a constellation expansion modulation scheme for each user terminal served by the same transmit antenna, and determining an intra-stream power allocation factor and an initial phase rotation coefficient of the transmit antenna; and processing, by using the modulation scheme, a signal to be sent to the user terminal, and transmitting the processed signal to the user terminal according to the intra-stream power allocation factor and the initial phase rotation coefficient.
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