公开(公告)号：WO2020046183A1

公开(公告)日：2020-03-05

申请号：PCT/SE2018/050878

申请日：2018-08-31

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

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

IPC: H04W56/00 ,  H04L12/26

Abstract: According to a first aspect, there is provided a method for delay alignment in a multi-point communication system. The method comprises determining (S10) of a respective reference value of round trip time for n +1 signalling paths in the multi-point communication system, where n >0. The determination (S10) is performed using n reference values of round trip time skews between a respective signalling path and a single reference signalling path of the n +1 signalling paths, and a reference value of a sum of round trip times over all of the n +1 signalling paths as exclusive input values. The respective reference values of round trip times are limited within a predetermined allowed interval for round trip times. The methods further comprises performing (S20) of a separate, preferably globally stable, control of data signalling in each single one of the n +1 signalling paths based on the respective reference values of round trip times.

公开(公告)号：WO2018070910A1

公开(公告)日：2018-04-19

申请号：PCT/SE2017/050417

申请日：2017-04-28

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： LAU, Katrina ,  DELGADO, Ramon ,  MIDDLETON, Richard

IPC: H04L1/00

Abstract: Embodiments herein relate to a network node operable in a radio communication network and a method performed by the network for communication between the network node and a wireless device. The method comprises obtaining (110) information associated with a channel quality of a channel between the network node and the wireless device; and estimating (120) respective one or more variables associated with the channel quality based on the obtained channel quality information. The method (100) further comprises determining (130) an Outer Loop Link Adaptation, OLLA, adjustment based on the obtained channel quality information, and based on the estimated respective one or more variables associated with the channel quality, and when the obtained channel quality information indicates that the channel performance is acceptable: also based on a Sequential Hypothesis Testing, SHT, of the obtained channel quality information.

Abstract translation: 这里的实施例涉及可在无线电通信网络中操作的网络节点以及由网络执行的用于网络节点与无线设备之间的通信的方法。 该方法包括获得（110）与网络节点和无线设备之间的信道的信道质量相关联的信息; 以及基于所获得的信道质量信息来估计（120）与信道质量相关联的相应的一个或多个变量。 该方法（100）还包括基于所获得的信道质量信息并且基于估计的与信道质量相关联的一个或多个变量来确定（130）外环链路自适应OLLA，调整以及何时获得的信道质量 信息表明信道性能是可接受的：还基于所获得的信道质量信息的序列假设检验SHT。

公开(公告)号：WO2018004412A1

公开(公告)日：2018-01-04

申请号：PCT/SE2016/050681

申请日：2016-07-01

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

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

IPC: H04L12/26

Abstract: A method for assisting in multipoint data flow control in a wireless communication system having a number, n+ 1, where n≥1, of wireless- transmission points. The method comprises obtaining (S 1), for each of the wireless-transmission points, a round trip time of a present sampling period for data travelling to a user equipment via a respective wireless-transmission point and an acknowledge message travelling back. A round trip time skew is computed (S2) for the present sampling period for individual wireless- transmission points. The round trip time skew is a difference between the obtained round trip time of a respective wireless-transmission point and a reference value. A reference round trip time value is provided (S4) for each wireless-transmission point in dependence of the round trip time skews. A rate control signal is generated (S5), for each of the wireless-transmission points, in dependence of a respective reference round trip time value. Corresponding arrangements are also disclosed.

Abstract translation: 一种用于辅助无线通信系统中的多点数据流控制的方法，所述无线通信系统具有无线传输点的数量n + 1，其中n≥1。 该方法包括针对每个无线传输点获得（S1）针对经由相应的无线传输点和回传的确认消息传播到用户设备的数据的当前抽样周期的往返时间。 针对各个无线传输点的当前采样周期计算往返时间偏差（S2）。 往返时间偏差是所获得的各个无线发送点的往返行程时间与参考值之间的差值。 根据往返时间偏差为每个无线传输点提供参考往返时间值（S4）。 根据相应的参考往返时间值，为每个无线传输点生成速率控制信号（S5）。 也公布了相应的安排。

公开(公告)号：WO2020009629A1

公开(公告)日：2020-01-09

申请号：PCT/SE2018/050742

申请日：2018-07-06

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： WIGREN, Torbjörn ,  MIDDLETON, Richard ,  DELGADO, Ramon ,  LAU, Katrina ,  SIOMINA, Iana

IPC: H04B7/06

Abstract: A method by a first network node (101), for handling directions of transmission of beamformed beams by a first radio network node (111). Both nodes operate in a wireless communications network (100). The first network node (101) determines (503), out of a set of directions in which the first radio network node (111) is capable of transmitting the beams, a subset of directions of transmission of the beams having a probability of detection above a threshold, by a first wireless device (131). The determining (503) is based on data obtained from previous attempts of positioning one or more second wireless devices (132) using at least some of the directions. The first network node (101) also initiates (504) providing, to at least one of: the first radio network node (111) and a second network node (102) operating in the wireless communications network (100), an indication of the determined subset.

公开(公告)号：WO2020091637A1

公开(公告)日：2020-05-07

申请号：PCT/SE2018/051103

申请日：2018-10-29

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： SIOMINA, Iana ,  LAU, Katrina ,  DELGADO, Ramon ,  MIDDLETON, Richard ,  WIGREN, Torbjörn

IPC: H04B7/08 ,  H04W64/00

Abstract: A method by a first network node (101), for handling directions of receiver beam scanning by an antenna array in a first radio network node (111). Both nodes operate in a wireless communications network (100). The first network node (101) determines (503), out of a set of directions in which the first radio network node (111) is capable of beam scanning, a subset of directions of beam scanning having a probability of detection above a threshold, of a signal received from a first wireless device (131). The determining (503) is based on data obtained from previous attempts of positioning one or more second wireless devices (132) using at least some of the directions. The first network node (101) also initiates (504) providing, to at least one of: the first radio network node (111) and a second network node (102) operating in the wireless communications network (100), an indication of the determined subset.

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：WO2016140606A1

公开(公告)日：2016-09-09

申请号：PCT/SE2015/050246

申请日：2015-03-05

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： DELGADO, Ramon ,  LAU, Katrina ,  MIDDLETON, Richard

IPC: H04W52/28

CPC classification number: H04W52/283 ,  H04W52/143 ,  H04W52/225 ,  H04W52/242

Abstract: There is provided a method performed by a network node for determining the transmit power to be used on a physical channel. The method comprises the step of obtaining values for the geometry factors G of a set of User Equipments, UEs. The method also comprises the step of creating, based on the obtained geometry factors and representations of the statistical moments of the geometry factors, a statistical measure G* for the set of UEs. The method also comprises the step of determining a value representing the transmission power for physical channel transmissions based on a power control expression for physical channel transmissions comprising the statistical measure G* for the set of UEs, and setting the transmission power to the determined value. A corresponding network node and a corresponding computer program is also provided.

Abstract translation: 提供了一种由网络节点执行的用于确定要在物理信道上使用的发射功率的方法。 该方法包括获得一组用户设备（UE）的几何因子G的值的步骤。 该方法还包括基于获得的几何因子和几何因子的统计矩阵的表示创建用于该组UE的统计度量G *的步骤。 该方法还包括以下步骤：基于用于物理信道传输的功率控制表达式来确定表示物理信道传输的发射功率的值，该功率控制表达式包括用于该组UE的统计测量G *，并将传输功率设置为所确定的值。 还提供了相应的网络节点和对应的计算机程序。

公开(公告)号：WO2019088888A1

公开(公告)日：2019-05-09

申请号：PCT/SE2017/051080

申请日：2017-11-01

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： WIGREN, Torbjörn ,  MIDDLETON, Richard ,  DELGADO, Ramon ,  LAU, Katrina ,  KARLSSON, Robert

IPC: H04B7/06 ,  H04B7/08 ,  H04W64/00

Abstract: A method for generating a probability map for a cell served by a network node is provided. The method includes generating a first probability map (P1) indicating a likelihood of primary beam directions (step 602). Generating the first probability map includes recording a first direction of a first user equipment (UE), the first direction indicating a direction of a first beam (e.g., a first set of antenna weights (a.k.a., precoding vector)) associated with the first UE when the first UE appears in the cell served by the network node. The method further includes generating a second probability map (P2) indicating a joint likelihood of primary and secondary beam directions (step 604). Generating the second probability map includes recording a second direction of a second beam associated with the first UE when the first UE switches from the first beam to the second beam, the second direction being recorded in association with the first direction. 28 3602-1538WO1 (P73007WO1)

公开(公告)号：WO2019088887A1

公开(公告)日：2019-05-09

申请号：PCT/SE2017/051079

申请日：2017-11-01

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： WIGREN, Torbjörn ,  MIDDLETON, Richard ,  DELGADO, Ramon ,  LAU, Katrina ,  KARLSSON, Robert

IPC: H04B7/06 ,  H04B7/08

CPC classification number: H04B7/088 ,  H04B7/0695

Abstract: A method is provided for monitoring beam quality in a cell served by a network node. The method includes the network node communicating with a user equipment using a first beam (e.g., a first set of antenna weights (a.k.a., precoding vector)). The method further includes determining a change in a signal measurement with respect to the first beam over a time period T (S T ). The method further includes determining a maximum value of the signal measurement with respect to a second beam over the time period T (S secondary,max ). The method further includes determining whether a condition is true, wherein determining whether the condition is true comprises: i) determining whether S T is less than a first threshold (th 1 and ii) determining whether S secondary,max is greater than a second threshold (th 2 ). The method further includes, in response to determining that the condition is true, triggering a switch to the second beam.

公开(公告)号：WO2017222435A1

公开(公告)日：2017-12-28

申请号：PCT/SE2016/050618

申请日：2016-06-23

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

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

IPC: H04W56/00

Abstract: ABSTRACT The solution presented herein controls a transmission timing of data from multiple transmission points to synchronize the data reception at a receiver to within pre-specified limits. To that end, a skew timing is determined from a difference between a second delay (a transmission time between the master node and a second slave node) and a first delay (a transmission time between a master node and a first slave node). A deadzone mapping is applied to the initial timing error (determined from a difference between a reference skew timing and the skew timing) to determine a final timing error. The deadzone mapping is configured to adjust the initial timing error responsive to a comparison between the initial timing error and a timing error range. The first and second delays are controlled using the final timing error to keep the skew timing within the timing error range.

Abstract translation: 摘要本文呈现的解决方案控制来自多个传输点的数据的传输时序，以将接收器处的数据接收同步到预先指定的范围内。 为此，根据第二延迟（主节点和第二从节点之间的传输时间）和第一延迟（主节点和第一从节点之间的传输时间）之间的差来确定偏斜定时。 将死区映射应用于初始定时误差（由参考偏斜定时与偏斜定时之间的差确定）以确定最终定时误差。 死区映射被配置为响应于初始定时误差和定时误差范围之间的比较来调整初始定时误差。 使用最终的定时误差来控制第一和第二延迟，以将偏斜定时保持在定时误差范围内。