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公开(公告)号：US20180368034A1
公开(公告)日：2018-12-20
申请号：US16009515
申请日：2018-06-15
Applicant: Mediatek Inc.
Inventor： Hsuan-Li Lin , Tsang-Wei Yu , Chiao Yao Chuang
Abstract: Apparatus and methods are provided for RRM measurement in the NR network. In one novel aspect, the RRM measurement is configured with one measurement gap for SS block and CSI-RS. In one embodiment, an extended MGL (eMGL) is configured such that the SS block and CSI-RS is measurement within one measurement gap. In another embodiment, the shorter MGL (sMGL) that is shorter than the standard MGL is configured. In another novel aspect, the CSI-RS is allocated adjacent to the SS blocks such that one measurement gap is configured for both the SS block and CSI-RS measurement. In another novel aspect, the CSI-RS measurement is conditionally configured. In yet another novel aspect, the UE decodes the time index of the SS block conditionally.
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公开(公告)号：US11729027B2
公开(公告)日：2023-08-15
申请号：US17701836
申请日：2022-03-23
Applicant: Mediatek Inc.
Inventor： Chiao Yao Chuang
CPC classification number: H04L25/0226 , H04L5/0051 , H04L27/2607 , H04L27/3872 , H04L5/0007
Abstract: A UE determines a respective set of subcarriers from N subcarriers in each OFDM symbol of M1 consecutive OFDM symbols within a slot. The respective set of subcarriers carries a respective set of SRSs that form transmission combs of a transmission comb size. The respective set of subcarriers in one of the M1 consecutive OFDM symbols do not overlap in frequency domain with the respective set of subcarriers in any other one of the M1 consecutive OFDM symbols. The UE applies the respective set of phase rotations to the respective set of SRSs in each OFDM symbol to obtain a cyclic shift. The UE maps the respective set of SRSs applied with phase rotations to the respective set of subcarriers in each OFDM symbol. The UE transmits the respective sets of SRSs in the M OFDM symbols.
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公开(公告)号：US20230037439A1
公开(公告)日：2023-02-09
申请号：US17863565
申请日：2022-07-13
Applicant: Mediatek Inc.
Inventor： Chiao Yao Chuang , Nathan Edward Tenny
Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a UE. The UE receives, from a base station, configurations of one or more measurement gaps for the UE to perform measurements of PRSs. The UE receives an indication for selecting one measurement gap of the one or more measurement gaps. The UE performs measurements of PRSs within the one measurement gap.
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公开(公告)号：US10911997B2
公开(公告)日：2021-02-02
申请号：US16009515
申请日：2018-06-15
Applicant: MEDIATEK INC.
Inventor： Hsuan-Li Lin , Tsang-Wei Yu , Chiao Yao Chuang
Abstract: Apparatus and methods are provided for RRM measurement in the NR network. In one novel aspect, the RRM measurement is configured with one measurement gap for SS block and CSI-RS. In one embodiment, an extended MGL (eMGL) is configured such that the SS block and CSI-RS is measurement within one measurement gap. In another embodiment, the shorter MGL (sMGL) that is shorter than the standard MGL is configured. In another novel aspect, the CSI-RS is allocated adjacent to the SS blocks such that one measurement gap is configured for both the SS block and CSI-RS measurement. In another novel aspect, the CSI-RS measurement is conditionally configured. In yet another novel aspect, the UE decodes the time index of the SS block conditionally.
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公开(公告)号：US11910257B2
公开(公告)日：2024-02-20
申请号：US17930308
申请日：2022-09-07
Applicant: MEDIATEK INC.
Inventor： Din-Hwa Huang , Hsuan-Li Lin , Tsang-Wei Yu , Yih-Shen Chen , Chiao Yao Chuang
IPC: H04B7/06 , H04W8/24 , H04L5/00 , H04W36/22 , H04L25/02 , H04W72/04 , H04W36/00 , H04W72/23 , H04W36/38 , H04W72/044
CPC classification number: H04W36/0094 , H04L5/0057 , H04W36/0088 , H04W36/38 , H04W72/046 , H04W72/23 , H04L5/0007 , H04L5/0048
Abstract: Apparatus and methods are provided for RRM measurement in the NR network. In one novel aspect, the RRM measurement is configured with one measurement gap for SS block and CSI-RS. In one embodiment, an extended MGL (eMGL) is configured such that the SS block and CSI-RS is measurement within one measurement gap. In another embodiment, the shorter MGL (sMGL) that is shorter than the standard MGL is configured. In another novel aspect, the CSI-RS is allocated adjacent to the SS blocks such that one measurement gap is configured for both the SS block and CSI-RS measurement. In another novel aspect, the CSI-RS measurement is conditionally configured. In yet another novel aspect, the UE decodes the time index of the SS block conditionally.
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Patent Agency Ranking
公开(公告)号：US20220224477A1
公开(公告)日：2022-07-14
申请号：US17687776
申请日：2022-03-07
Applicant: Mediatek Inc.
Inventor： Chiao Yao Chuang , Xuan-Chao Huang
Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a UE. The apparatus may be a UE. The apparatus may be a UE. The UE receives one or more positioning reference signal parameters from a base station. The UE determines resource elements in a transmission bandwidth carrying multiple positioning reference signals based on the positioning reference signal parameters. The UE decodes symbols in the resource elements.
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公开(公告)号：US20220217020A1
公开(公告)日：2022-07-07
申请号：US17701836
申请日：2022-03-23
Applicant: MediaTek Inc.
Inventor： Chiao Yao Chuang
Abstract: A UE determines a respective set of subcarriers from N subcarriers in each OFDM symbol of M1 consecutive OFDM symbols within a slot. The respective set of subcarriers carries a respective set of SRSs that form transmission combs of a transmission comb size. The respective set of subcarriers in one of the M1 consecutive OFDM symbols do not overlap in frequency domain with the respective set of subcarriers in any other one of the M1 consecutive OFDM symbols. The UE applies the respective set of phase rotations to the respective set of SRSs in each OFDM symbol to obtain a cyclic shift. The UE maps the respective set of SRSs applied with phase rotations to the respective set of subcarriers in each OFDM symbol. The UE transmits the respective sets of SRSs in the M OFDM symbols.
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公开(公告)号：US10367553B2
公开(公告)日：2019-07-30
申请号：US15927216
申请日：2018-03-21
Applicant: MEDIATEK INC.
Inventor： Chiao Yao Chuang , Song Jheng Lin , Yih-Shen Chen
IPC: H04B7/0456 , H04W72/12 , H04W72/04 , H04B7/06 , H04L5/00
Abstract: A method of two-layer (Rank=2) demodulation reference signal (DMRS) based transmission scheme is proposed. The precoding matrix on a data RE can be represented as A×B. The precoding matrix on the UE-specific reference signal DMRS is A. Matrix B is the co-phasing cycling matrix. By applying the proposed co-phasing cycling matrix B for Rank=2 DMRS-based transmission scheme, the ratio of PDSCH EPRE to DMRS EPRE is equal to 0 dB, as required by the LTE specification. Further, when the DMRS power follows the precoding matrix A, UE channel estimation performance is improved.
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公开(公告)号：US20180279352A1
公开(公告)日：2018-09-27
申请号：US15927216
申请日：2018-03-21
Applicant: MEDIATEK INC.
Inventor： Chiao Yao Chuang , Song Jheng Lin , Yih-Shen Chen
CPC classification number: H04B7/0456 , H04B7/0473 , H04B7/0697 , H04L5/0044 , H04L5/0048 , H04L5/0051 , H04L5/0053 , H04W72/042 , H04W72/1231 , H04W72/1289
Abstract: A method of two-layer (Rank=2) demodulation reference signal (DMRS) based transmission scheme is proposed. The precoding matrix on a data RE can be represented as A×B. The precoding matrix on the UE-specific reference signal DMRS is A. Matrix B is the co-phasing cycling matrix. By applying the proposed co-phasing cycling matrix B for Rank=2 DMRS-based transmission scheme, the ratio of PDSCH EPRE to DMRS EPRE is equal to OdB, as required by the LTE specification. Further, when the DMRS power follows the precoding matrix A, UE channel estimation performance is improved.
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公开(公告)号：US20160219601A1
公开(公告)日：2016-07-28
申请号：US15008281
申请日：2016-01-27
Applicant: MEDIATEK INC.
Inventor： Kuhn-Chang Lin , Tsang-Wei Yu , Chiao Yao Chuang
CPC classification number: H04W4/70 , H04B17/318 , H04B17/364 , H04L5/001 , H04L5/0039 , H04L5/0044 , H04L5/0053 , H04L5/0092 , H04W24/08 , H04W72/042 , H04W72/0453 , H04W72/048 , H04W72/085
Abstract: Methods to support measurements for LTE user equipments are proposed. Due to reduced bandwidth design for cost reduction, resources for UEs are limited to contiguous six physical resource block (PRB) pairs (1.4 MHz). Six or less contiguous PRBs per narrow sub-band located in the whole channel bandwidth is allocated for transmission and reception for UEs. Novel control channel and data channel designs are proposed to make UEs be able to camp on LTE cells. Methods for intra-frequency measurement, for received signal time difference (RSTD) measurement, and for channel quality assessment for UEs are also provided. In one embodiment, UE is allocated with a measurement gap for intra-frequency measurements and RSTD measurements. In another embodiment, UE is configured with a frequency-hopping pattern and receives a PRB pair starting index per subframe for CSI measurement.
Abstract translation: 提出了支持LTE用户设备测量的方法。 由于降低带宽设计以降低成本，UE的资源仅限于连续的六个物理资源块（PRB）对（1.4 MHz）。 分配在整个信道带宽中的每个窄子带的六个或更少邻接的PRB用于UE的发送和接收。 提出了新的控制信道和数据信道设计，使UE能够驻扎在LTE小区上。 还提供了用于频率内测量，接收信号时差（RSTD）测量和用于UE的信道质量评估的方法。 在一个实施例中，向UE分配用于频率内测量和RSTD测量的测量间隙。 在另一个实施例中，UE配置有跳频图案，并且接收每个子帧的PRB对开始索引用于CSI测量。
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