公开(公告)号：WO2019039980A1

公开(公告)日：2019-02-28

申请号：PCT/SE2017/050845

申请日：2017-08-23

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： ÅHLANDER, Mats ,  WIGREN, Torbjörn

IPC: H04B7/0456 ,  H04B7/06 ,  G06F17/16

CPC classification number: H04B7/0617 ,  H04B7/0456 ,  H04L25/0224

Abstract: A beamforming method is provided. The method includes determining an initial parameter set, the initial parameter set including an initial time-frequency set (t 0 , f 0 ) and an initial inverse total interference matrix (I.). The method includes, for a given time-frequency set (t, f), performing the following steps: (1) Performing uplink measurements. (2) Computing a channel error contribution (II.) based on the uplink measurements. (3) Computing an interference matrix contribution (III.) based on the uplink measurements. (4) Computing an inverse total interference matrix (IV. ) based on the inverse total interference matrix ((IV.) ) at a previously-computed time-frequency set (t', f) and at least one of (II.) and (III.). (5) Computing a beamforming transceiver solution (Wt,f) based on at least the inverse total interference matrix ((IV.) ).

公开(公告)号：WO2018231110A1

公开(公告)日：2018-12-20

申请号：PCT/SE2017/050649

申请日：2017-06-16

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： SANDBERG, David ,  WIGREN, Torbjörn

IPC: H04B17/373 ,  H04L1/00 ,  H04W72/08

Abstract: Apparatus and methods for link adaptation for downlink transmissions in which the quality of the downlink radio channel is predicted with improved accuracy. For example, predicted channel gains are determined based on uplink transmissions on a per frequency sub- band basis and these predicated channel gains are then used in a link adaptation process for a downlink transmission.

公开(公告)号：WO2018199819A1

公开(公告)日：2018-11-01

申请号：PCT/SE2017/050405

申请日：2017-04-25

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： WIGREN, Torbjörn ,  ÅHLANDER, Mats

IPC: H04W72/12 ,  H04B7/0408 ,  H04W72/04

Abstract: A scheduling function node (SF) uses the beams available for each WCD to avoid scheduling a transmission that would imply that interference between WCDs is created. In the simplest form such a scheme could be described as follows: (1) avoid scheduling transmission in directions that coincide between WCDs (here, a direction would typically be represented by both azimuth and elevation angles) and (2) when the available beam directions do not allow interference avoidance, accounting for this fact and exploiting other types of orthogonality in the scheduling of time-frequency resources.

公开(公告)号：WO2018101867A1

公开(公告)日：2018-06-07

申请号：PCT/SE2016/051196

申请日：2016-12-01

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： WIGREN, Torbjörn ,  FARONIUS, Carola

IPC: H04B7/04 ,  H04B7/06

Abstract: A method for radio communication between a transmitting node and receiving nodes comprises obtaining (Sl) of directions from the transmitting node to the receiving nodes and antenna gains needed for each direction. A beam forming solution having a high gain in the directions of a set of receiving nodes and with antenna gains adapted to the need of the link is obtained (S2). User data to be transmitted to the receiving nodes is obtained (S3). The user data is overlay-coded (S4) by a code-domain overlaid code and/or a frequency-domain overlaid code, separately for each respective receiving node. The overlaid-coded user data is combined (S5) into at least one combined signal stream. Analogue beamforming, hybrid beamforming or constrained beamforming is performed (S6) on the combined signal stream(s) according to the beam forming solution. The beamformed data is transmitted (S7) from the transmitting node to the receiving nodes.

公开(公告)号：WO2018041419A1

公开(公告)日：2018-03-08

申请号：PCT/EP2017/051090

申请日：2017-01-19

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： LAU, Katrina ,  MIDDLETON, Richard ,  WIGREN, Torbjörn ,  DELGADO PULGAR, Ramon Alejandro

IPC: H04L12/841 ,  H04W56/00

Abstract: The proposed technology generally relates to flow control in wireless communication systems and in particular to methods and devices for flow control in multi-point transmission wireless communication systems.

Abstract translation: 所提出的技术一般涉及无线通信系统中的流量控制，并且具体涉及用于多点传输无线通信系统中的流量控制的方法和设备。

公开(公告)号：WO2018030925A1

公开(公告)日：2018-02-15

申请号：PCT/SE2016/050747

申请日：2016-08-11

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： ZU, Keke ,  WIGREN, Torbjörn ,  SIOMINA, Iana

IPC: G01C21/20

Abstract: A method (300) for indoor positioning or navigation comprises obtaining (310) a set of features which describe characteristics of a place in an indoor space. This obtained set of features may describe characteristics of a place at which a wireless device is located, a place targeted by a wireless device as a destination, or a place targeted by a wireless device to avoid. Regardless, the method (300) further comprises comparing (320) the obtained set of features to addresses of respective indoor blocks into which the indoor space is spatially divided. Each indoor block in this regard is identified as being located at an address formed from a set of features which describe characteristics of the indoor block. The method (300) also comprises determining (330), based on the comparing, which of the indoor blocks corresponds to the place in the indoor space.

Abstract translation: 用于室内定位或导航的方法（300）包括获得（310）描述室内空间中的地点的特征的一组特征。 该获得的一组特征可以描述无线设备所处的地点，作为目的地的无线设备所针对的地点或无线设备所要避免的目标地点的特征。 无论如何，方法（300）还包括将所获得的一组特征与室内空间在空间上被划分成的各个室内块的地址进行比较（320）。 在这方面，每个室内块被识别为位于由描述室内块特征的一组特征形成的地址处。 方法（300）还包括基于比较来确定（330）哪个室内块对应于室内空间中的位置。

公开(公告)号：WO2017082783A1

公开(公告)日：2017-05-18

申请号：PCT/SE2015/051195

申请日：2015-11-11

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： WIGREN, Torbjörn ,  BERGMAN, Johan ,  KANGAS, Ari

IPC: H04W4/00 ,  H04W76/02

CPC classification number: H04L43/022 ,  H04W4/70 ,  H04W76/10

Abstract: A network node (200) a wireless device (202) and methods therein, for configuring a wireless link (204) to be used for controlling a process at a wireless device (202) involving communication of control signals and feedback signals over the wireless link (204). The network node (200) sends a request message (2:2) to the wireless device (202) comprising a request for performance requirements of the wireless link (204) needed for the communication of control signals and feedback signals. The wireless device (202) determines (2:3) the performance requirements based on at least one of: 1) characteristics of the process, and 2) requirements for how the process is controlled. The wireless device (202) then sends (2:4) a response message comprising the performance requirements to the network node (200) which configures (2:5) the wireless link (204) so that the performance requirements of the wireless link are fulfilled. The process can thereby be properly controlled by the network node (200) by sending the control signals (2:7a) to the wireless device (202) and receiving the feedback signals (2:7b) from the wireless device (202) over the configured wireless link (204).

Abstract translation: 一种无线设备（202）的网络节点（200）及其中的方法，用于配置无线链路（204）以用于控制无线设备（202）处的过程，该过程涉及控制 信号和反馈信号通过无线链路（204）。 网络节点（200）向无线设备（202）发送包括对控制信号和反馈信号的通信所需的无线链路（204）的性能要求的请求的请求消息（2：2）。 无线设备（202）基于以下各项中的至少一项来确定（2：3）性能要求：1）过程的特性;以及2）过程如何被控制的要求。 然后，无线设备（202）向配置（2：5）无线链路（204）的网络节点（200）发送（2：4）包括性能要求的响应消息，以便无线链路的性能要求是 实现。 该过程可由此由网络节点（200）通过向无线设备（202）发送控制信号（2：7a）并从无线设备（202）接收来自无线设备（202）的反馈信号（2：7b） 配置无线链路（204）。

公开(公告)号：WO2016137376A1

公开(公告)日：2016-09-01

申请号：PCT/SE2015/051323

申请日：2015-12-10

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： WIGREN, Torbjörn

IPC: H04W64/00 ,  H04W88/08

CPC classification number: H04W64/00 ,  G01S5/0252 ,  H04W88/085

Abstract: A localization approach based on cable length detection. In one aspect, a method performed by a positioning system for determining the location of a mobile communication device (MCD) is provided. In some embodiments, the method includes the positioning system determining a cable length value representative of the length of the cable connecting a base station to a radio head serving the MCD. The positioning system then determines a location of the MCD based on the determined cable length.

Abstract translation: 基于电缆长度检测的定位方法。 在一个方面，提供了一种由定位系统执行的用于确定移动通信设备（MCD）的位置的方法。 在一些实施例中，该方法包括定位系统确定代表将基站连接到服务于MCD的无线电头的电缆的长度的电缆长度值。 定位系统然后基于所确定的电缆长度来确定MCD的位置。

公开(公告)号：WO2016130053A1

公开(公告)日：2016-08-18

申请号：PCT/SE2015/050145

申请日：2015-02-09

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： YAMINE, Badawi ,  SIOMINA, Iana ,  WIGREN, Torbjörn

IPC: H04W24/08 ,  H04W24/10

CPC classification number: H04W24/10 ,  H04W24/08 ,  H04W64/00 ,  H04W76/27

Abstract: A wireless device and a method performed therefore are provided for reporting and logging an event, the wireless device being operable in a wireless communication network. The method comprises determining (110) that an event is to be logged and/or reported; and determining (120) if the location of the wireless device is a known location or is the same location as the last time the event was logged and/or reported. The method further comprises, when the location of the wireless device is a known location or the same location as the last time the event was logged and/or reported: logging (130) and reporting to a network node, according to an enhanced reporting and logging functionality.

Abstract translation: 因此，无线设备和由此执行的方法被提供用于报告和记录事件，无线设备可在无线通信网络中操作。 该方法包括确定（110）事件将被记录和/或报告; 以及确定（120）所述无线设备的位置是否是已知位置，或者与所述事件被记录和/或报告的最后一次相同的位置。 该方法还包括：当无线设备的位置是已知位置或与上次记录和/或报告的最后一次相同的位置时：根据增强的报告和记录（130）和向网络节点报告， 记录功能。

公开(公告)号：WO2016122364A1

公开(公告)日：2016-08-04

申请号：PCT/SE2015/050136

申请日：2015-02-06

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： WIGREN, Torbjörn ,  MUÑIZ GARCIA, Claudia ,  SUCEVIC, Nikola

IPC: H04W64/00 ,  H04W88/08 ,  G01S5/02

CPC classification number: H04W4/02 ,  G01S5/02 ,  H04W24/08 ,  H04W64/00 ,  H04W88/085

Abstract: A localization approach based on cable length detection. In one aspect, a method performed by a positioning system (100) for determining the location of a mobile communication device, MCD, (120) is provided. In some embodiments, the method includes the positioning system determining a cable length value representative of the length of the cable (108) connecting a base station (104) to a radio head (107) serving the MCD. The positioning system then determines a location of the MCD based on the determined cable length.

Abstract translation: 基于电缆长度检测的定位方法。 一方面，提供了一种由定位系统（100）执行的用于确定移动通信设备MCD（120）的位置的方法。 在一些实施例中，该方法包括定位系统确定代表将基站（104）连接到服务于MCD的无线电头（107）的电缆（108）的长度的电缆长度值。 定位系统然后基于所确定的电缆长度来确定MCD的位置。