公开(公告)号：WO2018171444A1

公开(公告)日：2018-09-27

申请号：PCT/CN2018/078569

申请日：2018-03-09

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) ,  ZHANG, Zhan

Inventor： ZHANG, Zhan ,  LIU, Jinhua ,  LI, Shaohua

IPC: H04L1/00

Abstract: A method and device for code block grouping. It is determined that one or more code blocks of a transport block is/are mapped to one or more code block groups according to a service and/or an associated channel; therefore, resource efficiency may be improved, latency may be reduced and robustness may be increased for all kinds of services.

公开(公告)号：WO2018059129A1

公开(公告)日：2018-04-05

申请号：PCT/CN2017/096230

申请日：2017-08-07

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) ,  ZHANG, Zhan

Inventor： ZHANG, Zhan ,  LI, Shaohua ,  LIU, Jinhua

IPC: H04L1/00 ,  H04W72/04

Abstract: According to the present disclosure, different TBS tables especially different TBS table sets are used for URLLC traffic and non-URLLC traffic. ATBS table for URLLC is selected by a network node, upon determination of traffic type as URLLC, and informed to a UE. The informing can be a TBS table index or a scaling factor. After receiving the information of TBS table selection, the UE identifies the selected TBS table from its TBS table set for URLLC, or generates a new TBS table based on the scaling factor and a corresponding TBS table.

Abstract translation: 根据本公开，不同的TBS表格，特别是不同的TBS表格集合被用于URLLC业务和非URLLC业务。 用于URLLC的ATBS表由网络节点选择，一旦确定流量类型为URLLC，并通知给UE。 通知可以是TBS表索引或缩放因子。 在接收到TBS表选择信息后，UE从其为其设置的用于URLLC的TBS表中识别所选择的TBS表，或者基于缩放因子和相应的TBS表生成新的TBS表。

公开(公告)号：WO2018171323A1

公开(公告)日：2018-09-27

申请号：PCT/CN2018/073795

申请日：2018-01-23

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) ,  ZHANG, Zhan

Inventor： ZHANG, Zhan ,  LI, Shaohua ,  LIU, Jinhua

IPC: H04W16/06

Abstract: Embodiments of the present disclosure relate to methods and devices for uplink puncturing. In example embodiments, the terminal device obtains a first signal to be transmitted for a first service requiring a first latency. Then, the terminal device determines whether a resource block has been a shared one for the first service requiring a first latency or allocated by a network device for a second service requiring a second latency higher than the first latency. If it is determined that the resource block has been allocated for the second service, the terminal device selects a first set of resource elements based on a predefined pattern of resource elements. The first set of resource elements are discontinuously distributed in the allocated resource block. The terminal device transmits the first signal for the first service to the network device at the first set of resource elements. In this way, the low latency requirement of the first service may be met while impairing of the second service due to the missing of the REs preempted by the first service may be reduced.

公开(公告)号：WO2022043730A1

公开(公告)日：2022-03-03

申请号：PCT/IB2020/057912

申请日：2020-08-24

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： LI, Shaohua ,  LONG, Jianguo

IPC: H04B17/12 ,  H01Q3/30 ,  H04B7/02

Abstract: Embodiments of the present disclosure provide methods, apparatuses, and computer products for base station antenna calibration. A method is implemented in a base station (402-1) for a cellular communications system (400). The method includes selecting (500), from a plurality of User Equipments, UEs, (412), assistant UEs (412-1) to assist the base station (402-1) with antenna calibration, wherein selecting (400) the assistant UEs (412-1) is based upon criteria that includes UE channel state information, CSI, from the UEs (412); one or more uplink channel characteristics of an uplink channel from the UEs (412) to the base station (402); a UE capability of the UEs (412), UE traffic information related to the UEs (412); and any combination thereof. A further step is obtaining (514) antenna calibration assistance information from the assistant UEs (412-1), the antenna calibration assistance information being information that is used by the base station (402-1) for antenna calibration.

公开(公告)号：WO2021079173A1

公开(公告)日：2021-04-29

申请号：PCT/IB2019/059078

申请日：2019-10-23

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： LONG, Jianguo ,  LI, Shaohua

IPC: H04B7/06 ,  H01Q3/26 ,  H04B7/10 ,  H04B17/12

Abstract: A method, network node and wireless device (WD) for phase error compensation for Fifth Generation (5G) downlink systems with four correlated uncalibrated antennas are provided. A method includes applying N incremented phase rotations to one of the four antennas to produce N channel state information reference signal (CSI-RS) resources, N being an integer greater than 1. The method also includes transmitting N CSI-RS on 4 CSI-RS ports to a wireless device, WD, each of the N CSI-RS resources being transmitted with a different one of the incremented phase rotations. The method further includes receiving from the WD a CSI-RS resource indication (CRI) that indicates a particular one of the N CSI-RS resources. The method also includes applying, in subsequent transmissions to the WD, a phase rotation to the one of the four antennas, the phase rotation corresponding to the indicated CSI-RS resource.

公开(公告)号：WO2019141805A1

公开(公告)日：2019-07-25

申请号：PCT/EP2019/051237

申请日：2019-01-18

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： LI, Shaohua ,  WIKSTRÖM, Gustav ,  BALDEMAIR, Robert

IPC: H04L1/00 ,  H04L5/00

CPC classification number: H04L1/007 ,  H04L1/0072 ,  H04L1/0075 ,  H04L5/0055 ,  H04L5/0057

Abstract: A method and apparatus are disclosed for configuring at least one set of beta offset values, and for each of the at least one set of beta offset values, at least one subset of beta offset values being defined for information corresponding to Uplink Control Information, UCI, and being associated with at least one service type. A method and apparatus are disclosed for obtaining a configuration of at least one set of beta offset values, for each of the at least one set of beta offset values, the configuration being associated with at least one subset of beta offset values, the at least one subset of beta offset values being defined for information corresponding to UCI and being associated with at least one service type. Especially, each set of beta offset values associated with a specific type of UCI, i.e. HARQ-ACK, CSI part 1 and/or CSI part 2, is subdivided in two subsets, one for enhanced Mobile Broadband, eMBB, UCI and one for Ultra Reliable Low Latency Communication, URLLC, UCI.

公开(公告)号：WO2019098938A1

公开(公告)日：2019-05-23

申请号：PCT/SE2018/051194

申请日：2018-11-19

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： LI, Shaohua ,  FRENNE, Mattias ,  FAXÉR, Sebastian

IPC: H04L1/00 ,  H04L5/00

Abstract: Embodiments of methods for providing a new Channel State Information (CSI) reference resource definition for CSI reports in New Radio (NR) are disclosed. In some embodiments, a method performed by a wireless device for Channel Quality Indicator (CQI) index reporting in a wireless communication system comprises deriving a CQI index to be reported to a network node, where the CQI index is derived assuming a hypothetical transmission on a CSI reference resource, wherein a wireless device-specific reference signal overhead in the CSI reference resource is consistent with one or more parameters, and reporting the CQI index to the network node. In another embodiment, a method performed by a radio access node reporting in a wireless communication system comprises receiving a CQI index from a wireless device for a CSI reference resource, wherein a wireless device-specific reference signal overhead in the CSI reference resource is consistent with one or more parameters.

公开(公告)号：WO2018128566A1

公开(公告)日：2018-07-12

申请号：PCT/SE2017/051038

申请日：2017-10-23

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： LI, Shaohua ,  WANG, Jianfeng

IPC: H04L27/26 ,  H04B7/0413 ,  H04B7/06 ,  H04B7/08

Abstract: The present disclosure provides a method (300) in an access device for use in synchronization. The method (300) comprises transmitting (S310), to a terminal device, information relating to transmitted Synchronization Signal (SS) blocks.

公开(公告)号：WO2017096506A1

公开(公告)日：2017-06-15

申请号：PCT/CN2015/096546

申请日：2015-12-07

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) ,  WANG, Hai

Inventor： WANG, Hai ,  LI, Shaohua ,  WANG, Jianfeng ,  ZHENG, Yanli

IPC: H04B1/707

CPC classification number: H04L27/266 ,  H04L25/0204 ,  H04L25/0212 ,  H04L25/022 ,  H04L27/2659

Abstract: A wireless communication device and method therein for time synchronization in a wireless communication network are disclosed. The wireless communication device determines a first timing (tc) by performing a coarse time synchronization based on a synchronization signal received by the wireless communication device, wherein the received synchronization signal is sampled either in an original sampling rate or a reduced sampling rate. The wireless communication device determines a second timing (tf) by performing a fine time synchronization based on the determined first timing (tc) and the received synchronization signal.

Abstract translation: 其中公开了一种用于无线通信网络中的时间同步的无线通信设备及其方法。 无线通信设备通过基于由无线通信设备接收的同步信号执行粗略时间同步来确定第一定时（tc），其中接收到的同步信号或者以原始采样率或者降低的采样率被采样。 无线通信设备通过基于所确定的第一定时（tc）和接收到的同步信号执行精细时间同步来确定第二定时（tf）。

公开(公告)号：WO2017028019A1

公开(公告)日：2017-02-23

申请号：PCT/CN2015/086984

申请日：2015-08-14

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

Inventor： LI, Shaohua ,  SONG, Xinghua

IPC: H04B7/04 ,  H04W72/04 ,  H04L27/26

CPC classification number: H04L5/0055 ,  H04B7/0456 ,  H04B7/0617 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0053

Abstract: A Physical Uplink Control CHannel (PUCCH) precoding method is provided. According to the method, different precoding vectors can be applied to different Orthogonal Frequency Division Multiplexing (OFDM) symbols, and all the subcarriers in the same OFDM symbol can use the same precoding to achieve spatial diversity gain. By means of the method, full spatial diversity gain can be achieved without any cubic metric increase.

Abstract translation: 提供了一种物理上行链路控制信道（PUCCH）预编码方法。 根据该方法，不同的预编码向量可以应用于不同的正交频分复用（OFDM）符号，同一OFDM符号中的所有子载波可以使用相同的预编码来实现空间分集增益。 通过该方法，可以在没有任何立方度量增加的情况下实现全部空间分集增益。