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1. 发明申请

WO2022242876A1 BEAM TRAINING OF A RECEIVER DEVICE 审中-公开
公开(公告)号：WO2022242876A1
公开(公告)日：2022-11-24
申请号：PCT/EP2021/063653
申请日：2021-05-21
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： KALANTARI, Ashkan , BALAKRISHNAN, Bipin
IPC分类号： H04B7/08
摘要： A method is disclosed for beam training of a receiver device configured for beamforming reception from a transmitter. The beam training is based on a plurality of multi-arm reception beams. The method comprises performing signal strength measurements for each of the multi-arm reception beams, selecting one of the multi-arm reception beams based on the signal strength measurements, nulling one arm for the multi-arm reception beam, and updating the signal strength measurements by performing signal strength measurements for the multi-arm reception beam with the arm nulled. The method also comprises iteratively repeating the selecting, nulling, updating and determining steps so as to obtain further signal strength measurements for multi-arm reception beams with additional arms nulled; and selecting a reception beam, based on the signal strength measurements before and after the updates. Further, the method comprises selecting a reception beam based on the signal strength measurements before and after the updates. Corresponding apparatus, receiver, user equipment, and computer program product are also disclosed.

2. 发明申请

WO2022156914A1 APPLICATION AWARE D2D TOPOLOGY SET UP 审中-公开
公开(公告)号：WO2022156914A1
公开(公告)日：2022-07-28
申请号：PCT/EP2021/051634
申请日：2021-01-25
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： BALAKRISHNAN, Bipin , KALANTARI, Ashkan , KRISTENSSON, Andreas , FODOR, Gabor
IPC分类号： H04L12/707 , H04L12/725 , H04W40/04 , H04W40/24 , H04W40/12
摘要： Systems and methods are disclosed herein for determining a topology for a multi-path connection based on one or more application-level requirements. In one embodiment, a method performed by a master topology function comprises receiving a request for a topology for a multi-path connection that satisfies an application-level requirement(s) of a particular application and determining a topology for the multi-path connection based on the application-level requirement(s). The topology comprises two or more links from a source wireless node to a target wireless communication device and at least one of the two or more links is a multi-hop link from the source wireless node to the target wireless communication device via one or more additional wireless communication devices that operate as relays. The method further comprises configuring the source wireless node, the target wireless communication device, and the one or more additional wireless communication devices in accordance with the determined topology.

3. 发明申请

WO2022083860A1 PROACTIVE LINK BLOCKAGE AVOIDANCE FOR RELIABLE MMWAVE COMMUNICATION 审中-公开
公开(公告)号：WO2022083860A1
公开(公告)日：2022-04-28
申请号：PCT/EP2020/079682
申请日：2020-10-22
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： KALANTARI, Ashkan , BALAKRISHNAN, Bipin
IPC分类号： H04B7/06 , H04B7/08
摘要： Blockage of a mmWave communication link, due to movement of one or both of the wireless devices, and/or movement of an obstacle, is predicted. An environment is monitored by imaging devices, which may be fixed or mobile, and may be on the wireless devices. Objects in the environment are detected and their motion tracked from the image data. Based on the motion of the wireless device(s) and/or an obstacle, a link blockage event – whereby an obstacle interrupts communications on the link – is predicted, and a start time is estimated. Prior to the start time, directional antenna beams of both wireless devices are directed to a passive reflector, and the mmWave communication link is routed around the obstacle. Passive reflectors may be deployed throughout the environment. They may be moveable in angle and tilt to assist in avoiding link blockage. Beam re-training is performed on a group of directional antenna beam pairs directed towards the passive reflector. The directional antenna beam pairs are ranked by a channel quality metric, such as SINR, and a pair is chosen for use during the blockage (two pairs for duplex links). A different frequency may be used for the blockage avoidance communication link, reducing interference and allowing the same passive reflector to be used by more than one wireless communication link. The wireless communication link is transferred to the re-trained directional antenna beams, directed to a passive reflector, prior to the start of the link blockage event. For the duration of blockage, the wireless devices communicate via the passive reflector, without loss or interruption, which is critical in URLLC use cases.

4. 发明申请

WO2022008064A1 MULTISTATIC RADAR SYSTEM USING WIRELESS COMMUNICATION DEVICES 审中-公开
公开(公告)号：WO2022008064A1
公开(公告)日：2022-01-13
申请号：PCT/EP2020/069493
申请日：2020-07-10
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： SJÖLAND, Henrik , ZOU, Gang , DAHLGREN, Fredrik , KALANTARI, Ashkan , OLSSON, Magnus
IPC分类号： G01S7/00 , G01S7/02 , G01S13/00 , G01S13/42 , G01S13/87
摘要： A node (107) in a wireless communication system coordinates multistatic radar measurements, wherein the node (107) controls a plurality of wireless communication devices. Coordination involves obtaining (601) an indication that a first sensing area (111) located within a geographic area that is served by the node (107) is to be sensed by a first radar signal. A first multistatic radar group of wireless communication devices selected from a participating group of the plurality of wireless communication devices and the node (107) is formed (543, 603), wherein the first multistatic radar group comprises at least one device for transmitting the first radar signal and at least two devices for receiving one or more reflections of the transmitted first radar signal. The first multistatic radar group is controlled (605) to introduce the first radar signal into the first sensing area (111) and to receive the one or more reflections of the introduced first radar signal. The sensed reflections obtained by wireless communication devices in the first multistatic radar group are caused (607) to be combined to obtain geographical information about the first sensing area (111). Other aspects involve a wireless communication device interacting with a network node (107) to receive allocated time and radio frequency resources to be used for a radar function.

5. 发明申请

WO2022008063A1 RADAR IMPLEMENTATION IN A COMMUNICATION DEVICE 审中-公开
公开(公告)号：WO2022008063A1
公开(公告)日：2022-01-13
申请号：PCT/EP2020/069491
申请日：2020-07-10
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： ZOU, Gang , SJÖLAND, Henrik , DAHLGREN, Fredrik , KALANTARI, Ashkan
IPC分类号： H04B1/401 , G01S7/00 , H04B1/00 , G01S13/87
摘要： P80430WO1 -27- ABSTRACT OF THE DISCLOSURE A communication device (301) comprises a modem and a transceiver, wherein the modem comprises digital baseband circuitry for generating a digital baseband signal for transmission, and the transceiver is configured to receive the digital baseband signal from the 5 modem and to generate therefrom a radiofrequency signal for transmission by the communication device (301). The communication device controls the modem to operate in a first mode, and controls the modem to operate in a second mode. The first mode is a radar mode in which the modem generates radar baseband signals for transmission as one or more radar radiofrequency signals by the transceiver, and the second mode is a communication mode in 10 which the modem generates information-containing baseband signals for transmission by the transceiver. (Figure 9A)

6. 发明申请

WO2022008062A1 RADAR SIGNAL FOR USE IN MOBILE COMMUNICATION EQUIPMENT 审中-公开
公开(公告)号：WO2022008062A1
公开(公告)日：2022-01-13
申请号：PCT/EP2020/069488
申请日：2020-07-10
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： ZOU, Gang , KALANTARI, Ashkan , DAHLGREN, Fredrik , SJÖLAND, Henrik , KARLSSON, Sven
IPC分类号： G01S7/02 , G01S7/00 , H04W16/14 , H04B1/401
摘要： A wireless communications device (501) that operates in a wireless communications system performs a radar function. This involves obtaining (515) required radio frequency, RF, properties of a radar signal to be used for the radar function, wherein the radar function is one of a plurality of radar functions supported by the wireless communications device, each having a respective one of a plurality of different required RF properties. A transceiver of the wireless communications device is configured (519) to transmit a predefined signal of the wireless communications system using time and frequency resources associated with the predefined signal of the wireless communications system and that satisfy the required RF properties of the radar signal. The configured transceiver is used to transmit (521) the predefined signal of the wireless communications system.

7. 发明申请

WO2021190750A1 MULTI-BEAM TRACKING FOR EFFICIENT AND RELIABLE MMWAVE COMMUNICATION AMONG DEVICES 审中-公开
公开(公告)号：WO2021190750A1
公开(公告)日：2021-09-30
申请号：PCT/EP2020/058490
申请日：2020-03-26
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： KALANTARI, Ashkan , BALAKRISHNAN, Bipin
IPC分类号： H04B7/06 , H01Q3/24 , H04W16/28 , H04W72/04 , H04B7/0695 , H04W72/046
摘要： Systems and methods are disclosed herein for tracking multiple beams between a first radio node and one or more other radio nodes. In this regard, embodiments of a method performed by a first radio node for mitigating interference between two or more three-dimensional (3D) beams between the first radio node and the one or more other radio nodes are provided. According to one embodiment, the method comprises determining that a particular 3D beam from among two or more 3D beams results in interference to at least one other 3D beam from among the two or more 3D beams, wherein both the particular 3D beam and the at least one other 3D beam are both operated on a first frequency. The method further comprises selecting a new frequency to which to switch the particular 3D beam, and switching the particular 3D beam from the first frequency to the new frequency.

8. 发明申请

WO2020164698A1 LOAD DISTRIBUTION FOR A DISTRIBUTED NEURAL NETWORK 审中-公开
公开(公告)号：WO2020164698A1
公开(公告)日：2020-08-20
申请号：PCT/EP2019/053536
申请日：2019-02-13
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： BASTANI, Saeed , LI, Yun , BERKEMAN, Anders , HENNINGSSON, Maria , KALANTARI, Ashkan
IPC分类号： G06N3/063 , G06N3/04
摘要： A method for dynamic load distribution for a distributed neural network is disclosed. The method comprises estimating (103), in a device of the neural network, an energy usage for processing at least one non-processed layer in the device, and estimating (106), in the device of 5 the neural network, an energy usage for transmitting layer output of at least one processed layer to a cloud service of the neural network for processing. The method further comprises comparing (107), in the device of the neural network, the estimated energy usage for processing the at least one non-processed layer in the device with the estimated energy usage for transmitting the layer output of the at least one processed layer to the cloud service. The 10 method furthermore comprises determining (108) to process the at least one non-processed layer in the device when the estimated energy usage for transmitting the layer output of the at least one processed layer to the cloud service is equal or greater than the estimated energy usage for processing the at least one non-processed layer, and determining (110) to transmit the layer output of the at least one processed layer to the cloud service for processing 15 subsequent layers when the estimated energy usage for transmitting the layer output of the at least one processed layer to the cloud service is less than the estimated energy usage for processing the at least one non-processed layer in the device. Corresponding computer program product, apparatus, cloud service assembly, and system are also disclosed.20

9. 发明申请

WO2022268332A1 ESTABLISHING A CONNECTION FOR WIRELESS COMMUNICATION 审中-公开
公开(公告)号：WO2022268332A1
公开(公告)日：2022-12-29
申请号：PCT/EP2021/067441
申请日：2021-06-24
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： ÅSTRÖM, Magnus , KALANTARI, Ashkan , BASTANI, Saeed
IPC分类号： H04B7/06 , H04B7/155 , H04B7/024 , H04B7/0617 , H04B7/15528
摘要： Methods and apparatus are provided. In an example aspect, a method performed by a first wireless communication device of establishing a connection for wireless communication is provided. The method comprises receiving, on a first wireless communications channel, information about a reflective surface. The method also comprises establishing, based on the information about the reflective surface, the connection for wireless communication with a second wireless communication device via the reflective surface on a second wireless communications channel, wherein the second wireless communications channel is different to the first wireless communications channel.

10. 发明申请

WO2022194339A1 NETWORK NODE AND METHOD FOR SUSTAINING ULTRA-RELIABLE COMMUNICATION IN WIRELESS COMMUNICATION NETWORK 审中-公开
公开(公告)号：WO2022194339A1
公开(公告)日：2022-09-22
申请号：PCT/EP2021/056508
申请日：2021-03-15
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： BALAKRISHNAN, Bipin , DAHLGREN, Fredrik , KALANTARI, Ashkan , BASTANI, Saeed
IPC分类号： H04W40/10 , H04W40/12 , H04W40/18 , H04W40/20 , H04W40/22 , H04W40/24
摘要： A network node and method therein for ultra-reliable communication with a communication device in a wireless communications network are disclosed. The network node determines whether the communication with a second communication device is to be relayed via a relay node and determines that the first communication device is able to act as a relay node for the second communication device. The network node requests the first communication device to operate in a relay mode for relaying communications to the second communication device. The network node communicates with the second communication device over a relay link from the network node to the first communication device and from the first communication device to the second communication device.

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