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91. 发明申请

WO2023036398A1 AP-ORCHESTRATED OVERLAID TRANSMISSIONS 审中-公开
公开(公告)号：WO2023036398A1
公开(公告)日：2023-03-16
申请号：PCT/EP2021/074573
申请日：2021-09-07
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： DI TARANTO, Rocco , AMBEDE, Abhishek , SEDIN, Jonas , WILHELMSSON, Leif , SUNDMAN, Dennis , LOPEZ, Miguel
IPC分类号： H04W74/04 , H04W74/00 , H04W74/08
摘要： An access point (10) of a wireless communication system reserves a transmit opportunity, TXOP, on a wireless channel. Further, the access point (10) determines, for a wireless station (11) associated with the access point (10), a first set of one or more transmit parameters to be applied in a first wireless transmission from the wireless station (11) to the access point (10). Further, the access point (10) sends a message (405) for triggering the first wireless transmission by the wireless station (11). The message (405) indicates the first set of one or more transmit parameters. Further, the message (405) indicates a second set of one or more transmit parameters and that at least one additional wireless station (11) receiving the message (405) is allowed to perform a second wireless transmission in the TXOP for a duration smaller than the first wireless transmission and using the indicated second set of one or more transmit parameters and radio resources which are at least in part overlapping with radio resources allocated to the first wireless transmission.

92. 发明申请

WO2022243520A1 TRANSMITTING A SIGNAL 审中-公开
公开(公告)号：WO2022243520A1
公开(公告)日：2022-11-24
申请号：PCT/EP2022/063737
申请日：2022-05-20
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： WILHELMSSON, Leif , MADHAVAN, Narendar , BERGLJUNG, Christian , SUGIRTHARAJ, David
IPC分类号： H04W16/14
摘要： Examples of this disclosure include a method of transmitting a first signal in a first frequency range. The method comprises detecting a second signal in a second frequency range within the first frequency range, wherein the second frequency range is smaller than the first frequency range, and determining a first threshold based on a bandwidth of the second signal. If a signal power of signals within the first frequency range is below or equal to the first threshold, transmitting the first signal within the first frequency range.

93. 发明申请

WO2022174911A1 ALLOCATION OF FREQUENCY DOMAIN RESOURCES FOR WIRELESS SENSING 审中-公开
公开(公告)号：WO2022174911A1
公开(公告)日：2022-08-25
申请号：PCT/EP2021/054120
申请日：2021-02-19
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： LOPEZ, Miguel , WILHELMSSON, Leif
IPC分类号： H04W72/04 , H04W16/14
摘要： A method is disclosed for allocating frequency domain resources for wireless sensing of a radio channel associated with a sensing device. The method comprises determining a sensing frequency range for the sensing device based on a frequency selectivity of the radio channel, and allocating frequency domain resources for the sensing device at least in part based on the determined sensing frequency range. For example, a first sensing frequency range determined for a first frequency selectivity may be larger than a second sensing frequency range determined for a second frequency selectivity when the first frequency selectivity is higher than the second frequency selectivity. The frequency selectivity may be parameterized based on one or more of: a number of propagation paths of the radio channel, a time dispersiveness of the channel, an impulse response of the channel, a power delay profile of the channel, a delay spread of the channel, a root mean square delay spread of the channel, a frequency response of the channel, and a coherence bandwidth of the channel. The sensing frequency range may comprise a sensing bandwidth and/or a sensing frequency spread. Corresponding apparatus, scheduler, network node, and computer program product are also disclosed.

94. 发明申请

WO2022152919A1 MODULATION AND CODING SCHEMES 审中-公开
公开(公告)号：WO2022152919A1
公开(公告)日：2022-07-21
申请号：PCT/EP2022/050923
申请日：2022-01-17
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： WILHELMSSON, Leif , LOPEZ, Miguel
IPC分类号： H04L1/00
摘要： A method of using a single modulation alphabet to generate, based on information bits, modulated symbols for transmission according to first and second modulation and coding schemes (MCSs) with different data rates, comprises, for a first time interval, generating first encoded bits by feeding the information bits of the first time interval to a first encoder that implements a first error correcting binary code, and generating modulated symbols according to the first MCS by a first mapping of the first encoded bits to the modulation alphabet. The method also comprises, for a second time interval, organizing the information bits of the second time interval into first type information bits and second type information bits, generating second encoded bits by feeding the second type information bits to a second encoder that implements a second error correcting binary code, and generating modulated symbols according to the second MCS by a second mapping of a combination of the first type information bits and the second encoded bits to the modulation alphabet. The second mapping is different than the first mapping.

95. 发明申请

WO2022084095A1 BEAMFORMING IN LISTEN-BEFORE-TALK ENVIRONMENTS 审中-公开
公开(公告)号：WO2022084095A1
公开(公告)日：2022-04-28
申请号：PCT/EP2021/078112
申请日：2021-10-12
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： VIEIRA, Joao , CHENG, Jung-Fu , WILHELMSSON, Leif , NILSSON, Johan , MALEKI, Sina
IPC分类号： H04B7/06 , H04W16/14 , H04W74/08
摘要： A beamforming method is disclosed of a multi-antenna transmitter configured for operation in a listen- before-talk (LBT) environment. The method comprises transmitting – in transmission resources of a collection of one or more transmission resources corresponding to an LBT sensing event – according to a primary emission pattern (e.g., a primary beam) having a main lobe in a primary angular direction associated with a channel path towards an intended receiver, and transmitting according to one or more secondary emission patterns. The one or more secondary emission patterns – when accumulated over the collection of transmission resources corresponding to the LBT sensing event – are configured to indicate channel occupancy in angular directions other than the primary angular direction. In some embodiments, the one or more secondary emission patterns comprises a plurality of secondary emission patterns (e.g., a plurality of secondary beams). Transmitting according to the one or more secondary emission patterns may comprise executing a sweep of the respective secondary beams over the collection of transmission resources corresponding to the LBT sensing event. In some embodiments, the one or more secondary emission patterns consists of a single secondary emission pattern (e.g., an omni-directional emission pattern). Corresponding apparatus, transmitter, network node, wireless communication device, and computer program product are also disclosed.

96. 发明申请

WO2022008077A1 MULTI-LINK TRANSMISSION IN A WIRELESS NETWORK 审中-公开
公开(公告)号：WO2022008077A1
公开(公告)日：2022-01-13
申请号：PCT/EP2020/069598
申请日：2020-07-10
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： WILHELMSSON, Leif , DI TARANTO, Rocco , MADHAVAN, Narendar
IPC分类号： H04W76/15 , H04W84/12
摘要： A system for multi-link transmission in a wireless network comprising multiple nodes, wherein each node defines a corresponding coverage area and is configured to perform operations in the wireless network. The system comprises a device configured to transition between nodes and corresponding coverage areas and perform operations in the wireless network, a controller configured to cause transmission of data between the device and a set of nodes using a multi-link connection, wherein the multi-link comprises a first transmission link and a second transmission link associating the device with the set of nodes, wherein the controller is further configured to cause transmission of data over the first transmission link and/or the second transmission link, wherein a same frequency and a same cell identifier is allocated to the set of nodes for the transmission of data in the first transmission link, and wherein different cell identifiers are allocated to respective node in the set of nodes for the transmission of data in the second transmission link. Corresponding apparatus, method, and computer program product are also disclosed.

97. 发明申请

WO2021175448A1 CONTROL OF UPLINK WIRELESS TRANSMISSIONS IN SHARED TXOP 审中-公开
公开(公告)号：WO2021175448A1
公开(公告)日：2021-09-10
申请号：PCT/EP2020/056109
申请日：2020-03-06
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： LOPEZ, Miguel , SUNDMAN, Dennis , WILHELMSSON, Leif
IPC分类号： H04W74/08 , H04W74/04
摘要： A wireless device (11) configures a carrier for communication with a serving access point (10). The wireless device (11) maintains a virtual carrier sense timer. The virtual carrier sense timer indicates that the carrier is to be regarded as occupied as long as the virtual carrier sense timer is not expired. The wireless device (11) receives one or more wireless transmissions on the carrier. The one or more wireless transmissions each include: an identifier commonly assigned to multiple access points which cooperate by sharing a transmission opportunity, and a duration field for indicating a duration for which the carrier is expected to be occupied. In response to the identifier matching an identifier of the serving access point (11), the wireless device (11) updates the virtual carrier sense timer according to the indicated duration. Based on the virtual carrier sense timer, the wireless device (11) controls one or more UL wireless transmissions from the wireless device (11).

98. 发明申请

WO2021121625A1 PREAMBLE SIGNAL FOR WAKEUP COMMUNICATION IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
公开(公告)号：WO2021121625A1
公开(公告)日：2021-06-24
申请号：PCT/EP2019/086702
申请日：2019-12-20
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： SJÖLAND, Henrik , WILHELMSSON, Leif
IPC分类号： H04W52/02 , H04W52/0229
摘要： A method performed in a base station for frequency calibration of a receiver is disclosed. The base station generates a first signal with periodic ASK modulation and transmits the first signal as a preamble or frequency marker signal to facilitate frequency calibration of the receiver. The receiver sweeps its oscillator frequency to detect if there is a preamble or frequency marker signal present. When it is determined that there is a signal present, the oscillator frequency of the receiver is calibrated to the transmitting frequency of the base station. The base station then transmits a second signal as a wakeup signal to the receiver.

99. 发明申请

WO2021052562A1 P MATRICES FOR EHT 审中-公开
公开(公告)号：WO2021052562A1
公开(公告)日：2021-03-25
申请号：PCT/EP2019/074736
申请日：2019-09-16
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： LOPEZ, Miguel , WILHELMSSON, Leif
IPC分类号： H04B7/06 , H04L1/06 , H04L25/03 , H04L27/26
摘要： Methods and apparatus are provided. In an example aspect, a method of transmitting a multicarrier symbol comprising a plurality of subcarriers simultaneously from a plurality of antennas is provided. Each subcarrier is associated with a respective orthogonal matrix. The method comprises transmitting the symbol from the plurality of antennas such that, for each antenna, the symbol transmitted from each subcarrier is multiplied by an element of a respective row of the matrix associated with the subcarrier, wherein the row is associated with the antenna. The matrices are selected such that from each antenna, the symbol transmitted from at least one subcarrier is multiplied by a non-zero element, and the symbol transmitted from at least one other subcarrier is multiplied by a zero element.

100. 发明申请

WO2021028436A1 ADAPTIVE WUS TRANSMISSION 审中-公开
公开(公告)号：WO2021028436A1
公开(公告)日：2021-02-18
申请号：PCT/EP2020/072511
申请日：2020-08-11
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： REIAL, Andres , MALEKI, Sina , SHUBHI, Ilmiawan , WILHELMSSON, Leif
IPC分类号： H04W52/02
摘要： A network node and a method of transmitting control information to a wireless device performed by the network node. The method comprises determining a wake-up signal, WUS, transmission robustness goal, determining a link quality between the network node and the wireless device, selecting a WUS transmission mode based on the robustness goal and the link quality, applying the selected WUS transmission mode such that a transmitted WUS enables the wireless device to wake up to receive control information, and transmitting the control information to the wireless device.

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