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公开(公告)号：US20240357703A1
公开(公告)日：2024-10-24
申请号：US18685850
申请日：2021-10-14
发明人： Min Huang , Chao Wei , Hao Xu , Danlu Zhang
IPC分类号： H04W76/28
CPC分类号： H04W76/28
摘要： Methods, systems, and devices for wireless communications are described. A first device may select, from multiple orbital angular momentum (OAM) modes, a set of one or more primary OAM modes and a set of one or more secondary OAM modes, where at least one primary OAM mode is activated periodically and at least one secondary OAM mode is activated based on a trigger. The first device may transmit, to a second device, a message indicating a configuration for the selected set of one or more primary OAM modes, the selected set of one or more secondary OAM modes, and discontinuous reception (DRX) parameters for each of the sets of OAM modes. The second device may monitor for a signal using a primary OAM mode using the DRX parameters for the set of primary OAM modes, and the second device may activate a second OAM mode based on receiving the signal.
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公开(公告)号：US12095534B2
公开(公告)日：2024-09-17
申请号：US17617541
申请日：2020-06-13
CPC分类号： H04B7/0626 , H04L5/14 , H04W24/08 , H04W72/23
摘要： Methods, systems, and devices for wireless communications are described. A full duplex user equipment (UE) may provide a channel state information (CSI) report to abase station to enable the base station to schedule simultaneous uplink and downlink communications for the full duplex UE. For example, the base station may transmit a CSI report configuration to the UE that indicates for the UE to report a full duplex CSI. In some cases, the CSI report configuration may include the UE to report CSI under a full duplex mode with or without an indication of an uplink bandwidth. Accordingly, the UE may calculate and report the self-full duplex mode CSI to the base station according to the received configuration. The base station may then determine a radio resource allocation and transport format for downlink data transfer and for uplink data transfer under the full duplex mode.
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公开(公告)号：US12088385B2
公开(公告)日：2024-09-10
申请号：US17311773
申请日：2019-12-19
发明人： Qiaoyu Li , Liangming Wu , Chenxi Hao , Joseph Binamira Soriaga , Hao Xu
IPC分类号： H04B7/06 , H04B7/0456
CPC分类号： H04B7/0658 , H04B7/0456 , H04B7/0478 , H04B7/0626 , H04B7/0634 , H04B7/0695
摘要： Configurations and feedback schemes for compressed channel state information (CSI) feedback are provided. A User Equipment (UE) determines a constraint on a total number of transfer domain coefficients to be reported for compressed Channel State Information (CSI) feedback by the UE for a plurality of beams identified for the feedback, wherein each transfer domain coefficient is associated with amplitude information and phase information. The UE selects from a transfer domain coefficient compression matrix, based on the constraint, a set of one or more transfer domain coefficients to report for each of the beams. The UE reports information indicating a number of selected transfer domain coefficients in the set of transfer domain coefficients for each beam and a location of each transfer domain coefficient within the transfer domain coefficient compression matrix and reports at least the amplitude and phase information for the selected coefficients.
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公开(公告)号：US20240291606A1
公开(公告)日：2024-08-29
申请号：US17997325
申请日：2021-06-11
IPC分类号： H04L5/00
CPC分类号： H04L5/0048
摘要： Aspects of the disclosure relate to systems and methods for receiving, by a first user equipment (UE), a message comprising at least one of: reference signal information (RS-info) relating to one or more reference signals (RSs) corresponding to line-of-sight (LoS) signals targeting a receiver other than the first UE, and/or data-decoding information relating to data scheduled for purposes of on-going communication with a second UE, and not scheduled for purposes of on-going communication with the first UE. The disclosure also relates to systems and methods for monitoring for at least one of: encoded signals based on the data-decoding information, and/or for one or more RSs based on the RS-info. Other aspects, embodiments, and features are also claimed and described.
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公开(公告)号：US12074706B2
公开(公告)日：2024-08-27
申请号：US17310189
申请日：2019-01-23
发明人： Kai Chen , Changlong Xu , Liangming Wu , Jian Li , Jing Jiang , Hao Xu
IPC分类号： H04L1/08
CPC分类号： H04L1/08
摘要： Wireless communications systems and methods related to hybrid repeat request (HARQ) with rate splitting are provided. A first wireless communication device communicates, with a second wireless communication device, a first communication signal including a plurality of information bits. The first wireless communication device determines a number of bits in the plurality of information bits to be repeated in a second communication signal based on channel capacity information. The first wireless communication device communicates, with the second wireless communication device, the second communication signal including the plurality of information bits and a repetition of a subset of the plurality of information bits, where the subset of the plurality of information bits includes the determined number of bits.
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公开(公告)号：US11956753B2
公开(公告)日：2024-04-09
申请号：US17075627
申请日：2020-10-20
发明人： Alberto Rico Alvarino , Wanshi Chen , Hao Xu
IPC分类号： H04W68/00 , H04W4/70 , H04W4/80 , H04W72/0453 , H04W72/23
CPC分类号： H04W68/005 , H04W4/70 , H04W4/80 , H04W72/0453 , H04W72/23
摘要： Certain aspects of the present disclosure generally relate to wireless communications and more specifically to search space configuration in systems utilizing devices with limited communications resources, such as machine type communication (MTC) devices and enhanced MTC (eMTC) devices. An example method generally includes receiving a physical random access channel (PRACH) signal from a first user equipment (UE) on a first narrowband region within a wider system bandwidth and transmitting, in response to the PRACH signal, a random access response (RAR) signal in a first search space in a second narrowband region in at least a first subframe.
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公开(公告)号：US11825454B2
公开(公告)日：2023-11-21
申请号：US17313749
申请日：2021-05-06
发明人： Wanshi Chen , Seyedkianoush Hosseini , Peter Gaal , Srinivas Yerramalli , Hao Xu , Jing Sun , Shimman Arvind Patel , Aamod Khandekar
IPC分类号： H04W72/04 , H04W72/0446 , H04L1/1829 , H04L5/00 , H04W76/27 , H04L1/1867 , H04W72/21 , H04W72/23 , H04L1/1812 , H04W88/02
CPC分类号： H04W72/0446 , H04L1/1812 , H04L1/1861 , H04L1/1896 , H04L5/00 , H04L5/0048 , H04W72/21 , H04W72/23 , H04W76/27 , H04W88/02
摘要： Methods, systems, and devices for wireless communication are described that provide for reduced timing between certain downlink communications and responsive uplink communications relative to certain legacy systems (e.g., legacy LTE systems). A user equipment (UE) or base station may be capable of operating using two or more timing configurations that each include an associated time period between receipt of a downlink communication (e.g., a grant of uplink resources or shared channel data) and a responsive uplink communication (e.g., an uplink transmission using the granted uplink resources or feedback of successful reception of the shared channel data). In cases where a UE or base station are capable of two or more timing configurations, a timing configuration for a transmission may be determined and the responsive uplink communication transmitted according to the determined timing configuration.
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公开(公告)号：US11791936B2
公开(公告)日：2023-10-17
申请号：US17866168
申请日：2022-07-15
发明人： Kai Chen , Changlong Xu , Liangming Wu , Jian Li , Hao Xu
IPC分类号： H04L1/00 , H03M13/13 , H03M13/00 , H04L1/1812 , H04L1/1829
CPC分类号： H04L1/0068 , H03M13/13 , H03M13/6306 , H03M13/6362 , H04L1/1819 , H04L1/1854
摘要： Wireless devices may use polar codes for encoding transmissions and may support combining transmissions to improve decoding reliability (e.g., by achieving chase combining and incremental redundancy (IR) gains). For example, an encoding device may puncture a set of mother code bits using different puncturing patterns to obtain different redundancy versions for a first transmission and a re-transmission. Each puncturing pattern may correspond to an equivalent decoding performance. In some cases, to obtain equivalent puncture sets, the encoding device may perform punctured index manipulation procedures on an initial puncturing pattern. A punctured index manipulation procedure may involve switching a binary state for a binary bit at a same binary bit index for each puncture index in a puncturing pattern. A device may receive the transmissions generated using the equivalent puncture sets and may combine the information for improved decoding reliability.
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公开(公告)号：US11777645B2
公开(公告)日：2023-10-03
申请号：US16967106
申请日：2019-02-07
发明人： Changlong Xu , Liangming Wu , Kai Chen , Jian Li , Hao Xu , Tingfang Ji , Joseph Binamira Soriaga , Jing Jiang
IPC分类号： H04L1/00 , H04L1/08 , H04L1/1812
CPC分类号： H04L1/0057 , H04L1/0026 , H04L1/0041 , H04L1/0072 , H04L1/08 , H04L1/1812
摘要： Techniques are provided for retransmission of Physical Uplink Shared Channel (PUCCH) for Ultra Reliable Low Latency Communications (URLLC). A User Equipment (UE) transmits at least one code block of a control channel, the at least one code block including Channel State Information (CSI), wherein each code block is polar encoded by assigning bit indices of the code block to bit channels in a particular order of reliabilities of the bit channels. The UE detects a trigger, and in response, retransmits at least a portion of each code block including retransmitted CSI, wherein the portion is polar encoded by assigning bit indices of the retransmitted CSI to the bit channels in the reverse order of reliabilities of the bit channels as compared to the polar encoding of the CSI.
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公开(公告)号：US11743897B2
公开(公告)日：2023-08-29
申请号：US14503584
申请日：2014-10-01
发明人： Tao Luo , Wanshi Chen , Durga Prasad Malladi , Yongbin Wei , Naga Bhushan , Aleksandar Damnjanovic , Srinivas Yerramalli , Tingfang Ji , Hao Xu , Peter Gaal
IPC分类号： H04W72/21 , H04L5/00 , H04L27/00 , H04B7/0452 , H04W74/08 , H04B7/06 , H04W16/14 , H04B7/0456
CPC分类号： H04W72/21 , H04B7/0452 , H04L5/001 , H04L5/0032 , H04L5/0041 , H04L5/0048 , H04L5/0051 , H04L5/0073 , H04L27/0006 , H04W74/0833 , H04B7/0456 , H04B7/0604 , H04L5/0007 , H04L5/0044 , H04L5/0053 , H04W16/14
摘要： Techniques are described for wireless communication. An orthogonal frequency-division multiple access (OFDMA) configuration of an uplink channel is identified for communications in an unlicensed radio frequency spectrum band. An OFDMA waveform is generated based on the identified OFDMA configuration. The OFDMA waveform is communicated in a signal in the unlicensed radio frequency spectrum band. A virtual cell identifier of a first base station may be associated with transmissions between the first base station and a first user equipment (UE). A set of common resource blocks may be identified for transmission of a demodulation reference signal (DM-RS) between the first base station and the first UE. A configuration of an uplink channel may be dynamically selected for uplink communications in an unlicensed radio frequency spectrum band. A waveform may be generated based on the selected configuration. The waveform may be communicated in a signal in the unlicensed radio frequency spectrum band.
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