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1.发明授权公开(公告)号：US11901998B2
公开(公告)日：2024-02-13
申请号：US17029937
申请日：2020-09-23
CPC分类号： H04B7/0695 , H04B7/088 , H04W16/28 , H04W76/19
摘要： Example wireless communications methods and apparatus with two-way beam failure recovery are disclosed. One example method includes receiving a downlink beam failure recovery request by a network device from a client device indicating at least one new downlink candidate beam determined to replace at least one failed downlink beam. The network device detects at least one failed uplink beam, determines at least one new uplink candidate beam to replace the detected at least one failed uplink beam, and generates uplink redirection information indicating the determined at least one new uplink candidate beam. A response including the generated uplink redirection information is generated by the network device, and transmitted to the client device.
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公开(公告)号：US11057252B2
公开(公告)日：2021-07-06
申请号：US16267002
申请日：2019-02-04
发明人： Fan Wang , Branislav M. Popovic , Fredrik Berggren
IPC分类号： H04L27/26
摘要： A transmitting apparatus for a wireless communication system, where the wireless communication system includes an OFDM based waveform corresponding to a plurality of pre-defined subcarrier spacing values including at least a first subcarrier spacing value Δf1 and at least a second subcarrier spacing value Δf2. The transmitting apparatus includes a processor and a transmitter where the processor is configured to generate a signal S1 that is a NSF time repetition of an another signal S2. A duration of the another signal S2 is 1/Δf2, NSF=Δf2/Δf1 is an integer greater than 1, and the transmitter is configured to transmit a symbol comprising S1.
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公开(公告)号：US10135648B2
公开(公告)日：2018-11-20
申请号：US15700701
申请日：2017-09-11
发明人： Fredrik Berggren , Fan Wang , Branislav M. Popovic
摘要： The present invention relates to a transmitting device. The transmitting device comprises a processor, and a transmitter; wherein the processor is configured to generate a fractional Orthogonal Frequency Division Multiplexing (OFDM) symbol based on an adjacent OFDM symbol, wherein the fractional OFDM symbol is a cyclic extension of the adjacent OFDM symbol; wherein the transmitter is configured to transmit a multicarrier signal comprising the fractional OFDM symbol and the adjacent OFDM symbol. Furthermore, the present invention also relates to a corresponding method, a multicarrier wireless communication system comprising such a transmitting device, a computer program, and a computer program product.
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公开(公告)号：US09985746B2
公开(公告)日：2018-05-29
申请号：US15397055
申请日：2017-01-03
CPC分类号： H04L1/006 , H04L1/0042 , H04L1/005 , H04L1/0071 , H04W28/0236
摘要： The present disclosure relates to a transmitter device and a receiver device. The transmitter device comprises a processor which is communicably coupled with a transmitter unit. The processor is configured to receive a set of Z data streams and select K data streams with the same channel quality from the set of Z data streams for transmission, where K≤Z. Thereafter for each information word and for each data stream k=0, . . . , K−1 the processor encodes, scrambles and superposes so as to obtain a first signal sU. Further, for each information word and for each data stream k=0, . . . , K−1 the processor interleaves, encodes, scrambles and superposes so as to obtain a second signal sV. The first signal sU and the second signal sV are combined by the processor into a single signal s for transmission. The transmitter unit of the transmitter device is configured to transmit the transmission signal s over a radio channel.
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公开(公告)号：US11973594B2
公开(公告)日：2024-04-30
申请号：US17149477
申请日：2021-01-14
IPC分类号： H04L1/00 , H04L1/1812 , H04L5/00 , H04W72/23
CPC分类号： H04L1/0061 , H04L1/1819 , H04L5/0055 , H04W72/23
摘要： Devices, methods and non-transitory computer-readable medium for adaptively selective retransmissions in wireless communications are disclosed. The present application allows enhancing short packet data retransmission performance under short delay constraints. Using a retransmission indication for at least one segment of consecutive forward error correction (FEC) encoded bits reduces feedback signaling overhead compared to signaling retransmission requests individually for each of the coded bits. Accordingly, active hybrid automatic repeat request (HARQ) transmissions with low amounts of feedback information are enabled.
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6.发明授权公开(公告)号：US11950214B2
公开(公告)日：2024-04-02
申请号：US17150915
申请日：2021-01-15
IPC分类号： H04W72/04 , H04W72/0453 , H04W74/00 , H04W74/0833
CPC分类号： H04W72/0453 , H04W74/004 , H04W74/006 , H04W74/0833
摘要： A client device for wireless communication includes a transceiver and a processor. The transceiver is configured to receive frequency resource information to indicate a set of frequency resources for a physical random access channel (PRACH) preamble transmission. The frequency resource information includes at least one of: an interlace information indicating at least one of an interlace of a block-interlaced frequency-division multiplexing (B-IFDM) allocation, a resource element allocation information indicating a subset of resource elements within each block of the at least one B-IFDM interlace, and a resource element spacing information, such that an at least one resource element within at least one block of the at least one B-IFDM interlace is allocated for the transmission of one PRACH preamble according to a tone-interlaced frequency-division multiplexing (T-IFDM) allocation. The resource element allocation is repeated in each block of the at least one B-IFDM interlace.
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公开(公告)号：US10721701B2
公开(公告)日：2020-07-21
申请号：US16182836
申请日：2018-11-07
摘要： A transmitter and a method therein, configured for generating a synchronization signal for Device-to-Device (D2D) communication utilizing a Single Carrier-Frequency Division Multiple Access (SC-FDMA) waveform. The method includes determining, by a transmitter, a synchronization sequence du[l] modulating a set of subcarriers, where |du[l]|=|du[L−1−l]|, l=0,1, . . . , L−1, and |du[l]|=K, for a positive constant K, where u is a root index and L is a length of the synchronization sequence du[l]. The method further includes selecting the root index u from a set of root indices, and generating a synchronization signal for D2D communication utilizing an SC-FDMA waveform based on the determined synchronization sequence du[l] and the selected root index u.
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公开(公告)号：US10334548B2
公开(公告)日：2019-06-25
申请号：US15140853
申请日：2016-04-28
摘要： A transmitter and a method therein, configured for generating a synchronization signal for Device-to-Device (D2D) communication utilizing a Single Carrier-Frequency Division Multiple Access (SC-FDMA) waveform. The method includes determining, by a transmitter, a synchronization sequence du[l] modulating a set of subcarriers, where |du[l]|=|du[L−1−l]|, l=0, 1, . . . , L−1, and |du[l]|=K, for a positive constant K, where u is a root index and L is a length of the synchronization sequence du[l]. The method further includes selecting the root index u from a set of root indices, and generating a synchronization signal for D2D communication utilizing an SC-FDMA waveform based on the determined synchronization sequence du[l] and the selected root index u.
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公开(公告)号：US10148481B2
公开(公告)日：2018-12-04
申请号：US15277771
申请日：2016-09-27
摘要： A data transmission and signaling method in a transmitter device configured for concurrent transmission of non-orthogonal independent downlink data streams to receiver devices in a wireless communication system comprises sending to all receiver devices control information that includes indices of receiver devices selected for transmission, code rates of selected receiver devices, a label bit-to-receiver device allocation, an index of an expanded constellation, and a number of resource elements used for transmission.
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10.发明授权公开(公告)号：US11805554B2
公开(公告)日：2023-10-31
申请号：US17150949
申请日：2021-01-15
CPC分类号： H04W74/0833 , H04L1/0071 , H04L1/1861 , H04L5/0053 , H04L27/2613 , H04W74/002
摘要： The present disclosure relates to a client device and a network access node for transmitting and receiving a random access preamble which comprises a division of a set of resource blocks available for transmission of the random access preamble into at least two subsets of resource blocks, wherein each resource block in the set of resource blocks comprises a plurality of subcarriers, a first selection of resource blocks within the first subset of resource blocks and a second selection of resource blocks within the second subset of resource blocks, wherein the first selection of resource blocks is different to the second selection of resource blocks, and a mapping of a modulation sequence of the random access preamble onto at least one subcarrier in each selected resource block. Thereby, lower side-lobes of the auto-correlation function is achieved. Furthermore, the present disclosure also relates to corresponding methods and a computer program.
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