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公开(公告)号:US11838872B2
公开(公告)日:2023-12-05
申请号:US17411598
申请日:2021-08-25
Applicant: Huawei Technologies Co., Ltd.
Inventor: Zhengwei Gong , Amine Maaref , Yu Cao
IPC: H04W52/14 , H04W52/08 , H04W52/24 , H04W72/1268
CPC classification number: H04W52/146 , H04W52/08 , H04W52/242 , H04W72/1268
Abstract: Methods are disclosed that enable a user equipment (UE) to receive cell specific, UE specific and, in some embodiments, Physical Uplink Shared Channel (PUSCH) specific parameters from a network side component, such as a transmit/receive point, and use that information to set at least one PUSCH transmit power when transmitting to the network side.
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公开(公告)号:US20220400479A1
公开(公告)日:2022-12-15
申请号:US17892486
申请日:2022-08-22
Applicant: Huawei Technologies Co., Ltd.
Inventor: Yu Cao , Amine Maaref , Jianglei Ma
Abstract: With sidelink reservation signals sent together with the sidelink data, there is the possibility of interference with other sidelink signals. In order to address this, systems and methods are provided in which a first UE transmits a reservation signal to indicate at least one time-frequency resource for transmitting sidelink data. Following this, the first UE transmits at least one sidelink data transmission to a second UE using the at least one time-frequency resource indicated by the reservation signal. The reservation signal is transmitted before the at least one sidelink data transmission signal so that a third UE may detect the reservation signal and use the reservation signal to avoid using the at least one time-frequency resource indicated in the reservation signal.
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公开(公告)号:US11490425B2
公开(公告)日:2022-11-01
申请号:US16851209
申请日:2020-04-17
Applicant: Huawei Technologies Co., Ltd.
Inventor: Yu Cao , Liqing Zhang , Jianglei Ma
Abstract: An embodiment method for grant-free resource configuration comprises configuring a first type of grant-free resource, wherein the first type of grant-free resource is cell-specific and is configured using broadcast signaling, and wherein the first type of grant-free resource is accessible to a UE without further configuration; and configuring a second type of grant-free resource, wherein the second type of grant-free resource is UE-specific and is configured using a combination of broadcast signaling and unicast/multicast signaling, and wherein the second type of grant-free resource is accessible to a UE only after the unicast/multicast configuration.
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公开(公告)号:US11483810B2
公开(公告)日:2022-10-25
申请号:US15816441
申请日:2017-11-17
Applicant: Huawei Technologies Co., Ltd.
Inventor: Liqing Zhang , Yu Cao , Yongxia Lyu , Jianglei Ma , Yi Wang , Yan Chen
Abstract: A method and apparatus to configure grant-free transmission resources are provided. At least two configuration options can co-exist for configuring the grant-free transmission resources. The base station may explicitly or implicitly notify a user equipment which option is selected for grant-free transmission by that user equipment.
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公开(公告)号:US11303397B2
公开(公告)日:2022-04-12
申请号:US16841823
申请日:2020-04-07
Applicant: Huawei Technologies Co., Ltd.
Inventor: Yu Cao , Amine Maaref , Jianglei Ma
Abstract: Systems and methods for early termination of feedback in respect of sidelink transmissions are provided. A first UE transmits at least one sidelink (SL) transmission of a first set of SL transmissions to a second UE, the first set of SL transmissions comprising an initial SL transmission and a set number of SL retransmissions. If no ACK is received, then the first UE transmits the set number of retransmissions. On the other hand, if an ACK is received, then the first UE transmits fewer than the set number of SL retransmissions when an ACK is received from the second UE before the set number of SL retransmissions has been completed. By transmitting fewer than all of the set number of SL retransmissions, resources can be freed up for other purposes. The approach may be used for SL configured grant transmission.
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公开(公告)号:US20210385758A1
公开(公告)日:2021-12-09
申请号:US17411598
申请日:2021-08-25
Applicant: Huawei Technologies Co., Ltd.
Inventor: Zhengwei Gong , Amine Maaref , Yu Cao
Abstract: Methods are disclosed that enable a user equipment (UE) to receive cell specific, UE specific and, in some embodiments, Physical Uplink Shared Channel (PUSCH) specific parameters from a network side component, such as a transmit/receive point, and use that information to set at least one PUSCH transmit power when transmitting to the network side.
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公开(公告)号:US11096028B2
公开(公告)日:2021-08-17
申请号:US14836695
申请日:2015-08-26
Applicant: Huawei Technologies Co., Ltd.
Inventor: Yu Cao , Ming Jia , Jianglei Ma
Abstract: Methods and systems for a frame structure for machine-type communications (MTC) with adjustable pulse bandwidth are described. In an embodiment, the frame structure is an uplink frame structure that illustrates a representation of a plurality of coverage levels. The coverage levels are associated with a coverage range of a base station. Each coverage level is associated with corresponding sub-frames, and each sub-frame within a coverage level has the same sub-frame length and bandwidth.
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公开(公告)号:US20210144737A1
公开(公告)日:2021-05-13
申请号:US17156090
申请日:2021-01-22
Applicant: Huawei Technologies Co., Ltd.
Inventor: Yu Cao , Liqing Zhang , Hua Xu , Jianglei Ma , Toufiqul Islam , Amine Maaref
Abstract: A user equipment (UE) may determine that a transmission resource includes a first orthogonal frequency-division multiplexing (OFDM) symbol that is configured as a downlink symbol or as flexible, where the transmission resource is allocated for uplink (UL) transmissions during a time duration, and includes K transmission occasions (TOs). The UE may transmit a first UL transmission in the transmission resource omitting the first OFDM symbol. The first UL transmission includes K repetitions to be transmitted in the respective K TOs, and the K repetitions includes an initial transmission and at least one retransmission of the initial transmission.
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公开(公告)号:US10404533B2
公开(公告)日:2019-09-03
申请号:US16107181
申请日:2018-08-21
Applicant: Huawei Technologies Co., Ltd.
Inventor: Toufiqul Islam , Yu Cao , Jianglei Ma , Hua Xu , Amine Maaref , Liqing Zhang , Kelvin Kar Kin Au
Abstract: Systems and methods are provided that facilitate multiple switching points within a slot. A slot format indication is conveyed to a user equipment which indicates which symbols within a slot are uplink, downlink or unknown. Some formats feature half-slot switching meaning that a switch from uplink to downlink transmission takes place twice within a slot. Switching on a more frequent basis can deliver improved latency.
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公开(公告)号:US20170111147A1
公开(公告)日:2017-04-20
申请号:US15290652
申请日:2016-10-11
Applicant: Huawei Technologies Co., Ltd.
Inventor: Yu Cao , Hosein Nikopour , Alireza Bayesteh
CPC classification number: H04L27/2613 , H04L5/0051
Abstract: Longer pilot sequences can be supported by transmitting pilot values of a given pilot sequence over different orthogonal frequency division multiplexed (OFDM) symbols of an uplink frame. The pilot values may be contiguous, or non-contiguous, with one another in the time domain. Consecutive pilot values in a pilot sequence may be transmitted in different OFDM symbols of the frame. For example, odd pilot values (e.g., P1, P3, P5 . . . ) in a pilot sequence may be transmitted over a different OFDM symbol than even pilot values (e.g., P2, P4, P6 . . . ) in the pilot sequence. Alternatively, a leading subset of pilot values in a pilot sequence is transmitted over a different OFDM symbol than a trailing subset of pilot values in the pilot sequence.