公开(公告)号：WO2019084940A1

公开(公告)日：2019-05-09

申请号：PCT/CN2017/109467

申请日：2017-11-06

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) ,  LI, Yanqiang

Inventor： LI, Yanqiang ,  ZHU, Huaisong ,  LI, Ming

IPC: H04W28/08 ,  H04W92/00

CPC classification number: H04W92/12 ,  H04W28/08

Abstract: The present disclosure provides a method (200) in a network device for transmission of Narrow Band -Internet of Things (NB-IoT) data between a Radio Equipment Control (REC) node and a Radio Equipment (RE) node over Common Public Radio Interface (CPRI). The method (200) comprises: transmitting (210) the NB-IoT data from the REC node to the RE node or from the RE node to the REC node in a Control and Management (C&M) region of a CPRI frame. The NB-IoT data is frequency-domain data.

公开(公告)号：WO2018086051A1

公开(公告)日：2018-05-17

申请号：PCT/CN2016/105411

申请日：2016-11-11

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) ,  LI, Ming

Inventor： LI, Ming ,  LI, Yanqiang ,  LIU, Jinhua

IPC: H04W16/14 ,  H04W74/08

Abstract: Embodiments of the present disclosure provide a method performed by a first wireless communication system operating on a first subframe structure in an unlicensed spectrum. The method comprises obtaining a subframe timing difference between the first wireless communication system and a second wireless communication system operating on a second subframe structure in the unlicensed spectrum and determining whether unfairness exists between the first and second wireless communication systems based on the subframe timing difference. The method also comprises adjusting a subframe timing of the first wireless system, in response to the determination of the existence of unfairness, so that a probability to obtain a channel on an unlicensed carrier in the unlicensed spectrum for data communication by the first wireless communication system is improved.

Abstract translation: 本公开的实施例提供了一种由在未经许可的频谱中的第一子帧结构上操作的第一无线通信系统执行的方法。 该方法包括：获得第一无线通信系统和操作在免授权频谱中的第二子帧结构上的第二无线通信系统之间的子帧定时差，并且基于子帧定时差来确定第一和第二无线通信系统之间是否存在不公平。 该方法还包括响应于确定存在不公平性，调整第一无线系统的子帧定时，使得获得用于由第一无线通信系统进行数据通信的非授权频谱中的免许可载波上的信道的概率 被改进了。

公开(公告)号：WO2018010066A1

公开(公告)日：2018-01-18

申请号：PCT/CN2016/089640

申请日：2016-07-11

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) ,  LI, Ming

Inventor： LI, Ming ,  LI, Yanqiang ,  LIU, Jinhua

IPC: H04W74/08 ,  H04W16/14

Abstract: The present disclosure provides a method (300) in a Radio Unit (RU) for facilitating Clear Channel Assessment (CCA). The method (300) comprises: detecting (S310), in a first transmission period while the RU is operating in a first channel, whether one or more candidate channels in proximity to the first channel are unoccupied; determining (S320), when the first channel is not clear for transmission in a second transmission period, whether any of the one or more candidate channels that is detected to be unoccupied is clear for transmission in the second transmission period; and selecting (S330) one of the one or more candidate channels that is determined to be clear, for transmission in the second transmission period.

Abstract translation: 本公开提供了一种用于促进空闲信道评估（CCA）的无线电单元（RU）中的方法（300）。 所述方法（300）包括：在所述RU在第一信道中操作的第一传输时段中检测（S310）所述第一信道附近的一个或多个候选信道是否未被占用; 当所述第一信道在第二传输时段中未被清除以用于传输时，确定（S320）在所述第二传输时段中，检测为未被占用的所述一个或多个候选信道中的任何一个是否清除要传输; 以及选择（S330）被确定为清除的一个或多个候选信道中的一个以在第二传输时段中传输。

公开(公告)号：WO2017128045A1

公开(公告)日：2017-08-03

申请号：PCT/CN2016/072195

申请日：2016-01-26

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) ,  LI, Ming

Inventor： LI, Ming ,  LI, Yanqiang ,  LIU, Jinhua

IPC: H04W72/08

CPC classification number: H04W74/0808 ,  H04W72/0453

Abstract: Embodiments of the present disclosure provide a method (500) for data transmission at a communications device operable in an unlicensed spectrum. The communications device comprises a digital unit and a radio unit. The method (500) comprises selecting (510), at the radio unit, at least one unlicensed carrier from a set of candidate carriers in the unlicensed spectrum for channel sensing, in response to a data transmission request from the digital unit and performing (520) channel sensing on the at least one unlicensed cartier according to predetermined timing for data transmission. The method (500) further comprises transmitting (530) a data block prepared at the digital unit on a selected unlicensed carrier which is determined to be available by the channel sensing. There is also provided a corresponding communications device and a corresponding radio unit.

Abstract translation: 本公开的实施例提供了一种用于在可在非授权频谱中操作的通信设备处的数据传输的方法（500）。 通信设备包括数字单元和无线电单元。 所述方法（500）包括响应于来自所述数字单元的数据传输请求，在所述无线电单元处从所述未经许可的频谱中的一组候选载波中选择（510）用于信道感测的至少一个免许可载波，并执行（520 ）根据用于数据传输的预定定时在至少一个未经许可的购物中心上进行信道感测。 该方法（500）还包括在被选择的免许可载波上发送（530）在数字单元处准备的数据块，该数据块被确定为通过信道感测可用。 还提供了相应的通信设备和相应的无线电单元。

公开(公告)号：WO2013104082A1

公开(公告)日：2013-07-18

申请号：PCT/CN2012/000055

申请日：2012-01-12

Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUB) ,  XU, Yuanjun ,  GU, Tao ,  ZHU, Huaisong ,  LI, Yanqiang ,  YANG, Jinsong

Inventor： XU, Yuanjun ,  GU, Tao ,  ZHU, Huaisong ,  LI, Yanqiang ,  YANG, Jinsong

IPC: H04L27/32

CPC classification number: H04L27/2657 ,  H04L27/2621 ,  H04L27/2689 ,  H04W88/08

Abstract: The invention discloses an adaptive phase shift method in a multi-carrier system, comprising: generating a group of one or more new phase values for corresponding one or more phase shift carriers, PSCs, based on quantization phase values; calculating and comparing a backward maximum power in an evaluation path with the group of one or more new phase values in one timeslot and a forward maximum power in a working path with current phase values in the timeslot; and adjusting phase of the PSCs based on the group of one or more new phase values if the calculated backward maximum power is less than the calculated forward maximum power. An adaptive phase shift apparatus is also disclosed. With the invention, complexity of the implementation is reduced and a small DPS block resource, low Hardware cost, low power consumption is also achieved.

Abstract translation: 本发明公开了一种多载波系统中的自适应相移方法，包括：基于量化相位值，产生用于相应的一个或多个相移载波PSC的一个或多个新相位值组; 计算和比较评估路径中的后向最大功率与一个时隙中的一个或多个新相位值组和工作路径中的正向最大功率与时隙中的当前相位值进行比较; 以及如果所计算的后向最大功率小于所计算的正向最大功率，则基于一个或多个新相位值的组来调整所述PSC的相位。 还公开了一种自适应相移装置。 利用本发明，实现的复杂度降低，并且还实现了小的DPS块资源，低硬件成本，低功耗。