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1. 发明授权

US11349530B2 Antenna arrangement for distributed massive MIMO 有权
公开(公告)号：US11349530B2
公开(公告)日：2022-05-31
申请号：US16435054
申请日：2019-06-07
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Pål Frenger , Jan Hederen , Martin Hessler , Giovanni Interdonato
IPC分类号： H04K1/00 , H04L27/28 , H04B7/0452 , H01Q1/24 , H01Q1/00 , H04B7/0426 , H04W88/08
摘要： An antenna arrangement comprises a body which in turn comprises a plurality of antenna devices, the antenna arrangement being characterized in that the body has a flexible structure and an elongated shape.

2. 发明授权

US10568056B2 Method of assigning transmission timing to radio terminal, radio network node and radio terminal 有权
公开(公告)号：US10568056B2
公开(公告)日：2020-02-18
申请号：US15521404
申请日：2016-10-21
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Pål Frenger , Emil Björnson , Martin Hessler , Giovanni Interdonato , Erik Larsson
IPC分类号： H04W56/00 , H04B7/0413 , H04L5/14
摘要： The present invention relates to a method of assigning a transmission timing to a radio terminal in a radio network system including at least a radio network node and a radio terminal and employing a time division duplex method dividing a transmission time in an uplink transmission time interval and a downlink transmission time interval for transmission between the radio network node and the radio terminal, comprising the following steps: determining a speed of movement of the radio terminal with respect to the radio network node; assigning to the radio terminal, based on the speed of movement, a transmission timing in the downlink or uplink transmission time interval. The present invention relates further to a radio network node and a radio terminal adapted to assigning a transmission timing according to the above method.

3. 发明授权

US11329699B2 Disturbance mitigation 有权
公开(公告)号：US11329699B2
公开(公告)日：2022-05-10
申请号：US16302979
申请日：2018-10-16
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Giovanni Interdonato , Pål Frenger , Emil Björnson , Marcus Karlsson , Erik Larsson
IPC分类号： H04B7/024 , H04B7/0452 , H04B7/0456 , H04W88/08
摘要： A disturbance mitigation method of a communication element for a distributed antenna system is disclosed. The communication element is associated with two or more antenna elements of the distributed antenna system.
The method comprises acquiring channel condition information associated with at least two of a plurality of wireless communication devices served by the communication element, and partitioning the plurality of wireless communication devices into at least two groups based on the acquired channel condition information.
The method also comprises, for each of the groups, determining respective pre-coding weights based on the acquired channel condition information, wherein the respective pre-coding weights of different groups are determined according to different disturbance mitigation approaches.
Furthermore, the method comprises transmitting a signal comprising respective symbols intended for corresponding ones of the plurality of wireless communication devices, wherein the symbols intended for wireless communication devices of each group are pre-coded using the determined respective pre-coding weights of the group, and wherein the pre-coded symbols of at least two of the groups are super-positioned to form the signal.
Corresponding method of a wireless communication device is also disclosed, as well as corresponding apparatuses, communication element, distributed antenna system, wireless communication device and computer program product.

4. 发明申请

US20200220677A1 Downlink Pilot Assignment in Massive MIMO 审中-公开
公开(公告)号：US20200220677A1
公开(公告)日：2020-07-09
申请号：US16637882
申请日：2018-09-27
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Giovanni Interdonato , Pål Frenger , Erik G. Larsson
IPC分类号： H04L5/00 , H04B7/0413
摘要： A network node (110) and a method for downlink pilot signal assignment and transmission, and for data transmission. The network node has a plurality of antenna elements distributed over an area. The network node determines a respective Channel State Information (CSI) and/or a respective channel hardening degree for a wireless device (120) based on an uplink pilot signal. Possibly, the network node determines a mobility condition for the wireless device. Based on one or more out of: the determined respective CSI, the determined respective channel hardening degree and the determined respective mobility condition, the network node obtains a pilot utility metric for the wireless device. Further, the network node assigns a downlink pilot signal to at least one wireless device having a pilot utility metric exceeding a predetermined threshold value. Furthermore, the network node transmits, to the at least one wireless device, data and possibly an assigned downlink pilot signal.

5. 发明申请

US20220263549A1 Antenna Arrangement for Distributed Massive MIMO 有权
公开(公告)号：US20220263549A1
公开(公告)日：2022-08-18
申请号：US17736550
申请日：2022-05-04
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Pål Frenger , Jan Hederen , Martin Hessler , Giovanni Interdonato
IPC分类号： H04B7/0452 , H01Q1/24
摘要： An antenna arrangement comprises a body which in turn comprises a plurality of antenna devices, the antenna arrangement being characterized in that the body has a flexible structure and an elongated shape.

6. 发明授权

US11133907B2 Downlink pilot assignment in massive MIMO 有权
公开(公告)号：US11133907B2
公开(公告)日：2021-09-28
申请号：US16637882
申请日：2018-09-27
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Giovanni Interdonato , Pål Frenger , Erik G. Larsson
IPC分类号： H04B7/0413 , H04L5/00
摘要： A network node (110) and a method for downlink pilot signal assignment and transmission, and for data transmission. The network node has a plurality of antenna elements distributed over an area. The network node determines a respective Channel State Information (CSI) and/or a respective channel hardening degree for a wireless device (120) based on an uplink pilot signal. Possibly, the network node determines a mobility condition for the wireless device. Based on one or more out of: the determined respective CSI, the determined respective channel hardening degree and the determined respective mobility condition, the network node obtains a pilot utility metric for the wireless device. Further, the network node assigns a downlink pilot signal to at least one wireless device having a pilot utility metric exceeding a predetermined threshold value. Furthermore, the network node transmits, to the at least one wireless device, data and possibly an assigned downlink pilot signal.

7. 发明申请

US20180352526A1 METHOD OF ASSIGNING TRANSMISSION TIMING TO RADIO TERMINAL, RADIO NETWORK NODE AND RADIO TERMINAL 审中-公开
公开(公告)号：US20180352526A1
公开(公告)日：2018-12-06
申请号：US15521404
申请日：2016-10-21
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Pål Frenger , Emil Björnson , Martin Hessler , Giovanni Interdonato , Erik Larsson
IPC分类号： H04W56/00
CPC分类号： H04W56/0045 , H04B7/0413 , H04L5/14 , H04W56/0035
摘要： The present invention relates to a method of assigning a transmission timing to a radio terminal in a radio network system including at least a radio network node and a radio terminal and employing a time division duplex method dividing a transmission time in an uplink transmission time interval and a downlink or uplink transmission time interval for transmission between the radio network node and the radio terminal, comprising the following steps: determining a speed of movement of the radio terminal with respect to the radio network node; assigning to the radio terminal, based on the speed of movement, a transmission timing in the downlink or uplink transmission time interval. The present invention relates further to a radio network node and a radio terminal adapted to assigning a transmission timing according to the above method.

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