公开(公告)号：US09853707B2

公开(公告)日：2017-12-26

申请号：US14854344

申请日：2015-09-15

Applicant: MEDIATEK INC.

Inventor： Chia-Hao Yu ,  Ming-Po Chang ,  Ju-ya Chen ,  Jiann-Ching Guey

IPC: H04W72/00 ,  H04B7/06 ,  H04B7/0408 ,  H04L5/00 ,  H04B7/0452

CPC classification number: H04B7/0626 ,  H04B7/0408 ,  H04B7/0452 ,  H04B7/0695 ,  H04L5/0023 ,  H04L5/0051 ,  H04L5/0053

Abstract: A method of providing channel station information in a beamforming system is proposed. Reference Signal (RS) is used for channel state estimation. For fine-resolution dedicated beam with smaller spatial coverage, additional channel monitoring of coarse-resolution beams for beam fallback is applied. The joint coverage of monitored fallback beams covers a desired service area. For beam administration, fallback beams need to be evaluated and the most preferable beam is selected for use in case the currently used dedicated beam is no longer suitable. For link adaptation, at least the channel state of the selected fallback beam is evaluated and provided to a scheduler (e.g., a BS) for adapting the transmission of the selected fallback beam.

公开(公告)号：US20160080060A1

公开(公告)日：2016-03-17

申请号：US14854344

申请日：2015-09-15

Applicant: MEDIATEK INC.

Inventor： Chia-Hao Yu ,  Ming-Po Chang ,  Ju-ya Chen ,  Jiann-Ching Guey

IPC: H04B7/06 ,  H04W72/04 ,  H04W72/08 ,  H04L5/00

CPC classification number: H04B7/0626 ,  H04B7/0408 ,  H04B7/0452 ,  H04B7/0695 ,  H04L5/0023 ,  H04L5/0051 ,  H04L5/0053

Abstract: A method of providing channel station information in a beamforming system is proposed. Reference Signal (RS) is used for channel state estimation. For fine-resolution dedicated beam with smaller spatial coverage, additional channel monitoring of coarse-resolution beams for beam fallback is applied. The joint coverage of monitored fallback beams covers a desired service area. For beam administration, fallback beams need to be evaluated and the most preferable beam is selected for use in case the currently used dedicated beam is no longer suitable. For link adaptation, at least the channel state of the selected fallback beam is evaluated and provided to a scheduler (e.g., a BS) for adapting the transmission of the selected fallback beam.

Abstract translation: 提出了一种在波束成形系统中提供信道站信息的方法。 参考信号（RS）用于信道状态估计。 对于具有较小空间覆盖的精细分辨率专用光束，应用用于光束后退的粗分辨率光束的附加通道监视。 受监视的后备光束的联合覆盖覆盖了所需的服务区域。 对于光束管理，需要评估回退光束，并且最优选的光束被选择用于当前使用的专用光束不再适用的情况。 对于链路自适应，至少所选择的回退波束的信道状态被评估并提供给调度器（例如，BS），以调整所选择的后备波束的传输。