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公开(公告)号：US20200374781A1
公开(公告)日：2020-11-26
申请号：US16921272
申请日：2020-07-06
Applicant: Apple Inc.
Inventor： Ralf Bendlin , Gang Xiong , Jong-Kae Fwu , Yujian Zhang
Abstract: A method for low overhead system information acquisition (LOSIA) is disclosed. The LOSIA method includes several techniques for transmitting common channels in a next generation Radio Access Technology (xRAT). Instead of transmitting system information in a periodic, static, cell-specific, wideband manner, the transmission is triggered by user equipment in an “on demand” manner. The LOSIA method allows the network to control the overhead, bandwidth, and periodicity, as well as other characteristics. The LOSIA method employs several different techniques to trigger the information upon which the network can act, for example, by transmitting different payloads depending on the received trigger.
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公开(公告)号：US20200351043A1
公开(公告)日：2020-11-05
申请号：US16809985
申请日：2020-03-05
Applicant: APPLE INC.
Inventor： Gang Xiong , Hong He , Ralf Bendlin , Ajit Nimbalker , Jong-Kae Fwu
Abstract: Disclosed are embodiments related to implementing a dynamic resource allocation and transmission scheme for a fifth generation (5G) physical uplink control channel (xPUCCH) in a 5G system. In particular, embodiments include mechanisms to dynamically allocate resources for the transmission of xPUCCH, and resource mapping schemes for 5G systems supporting more than one symbol allocated for an xPUCCH transmission.
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73.发明申请公开(公告)号：US20200296753A1
公开(公告)日：2020-09-17
申请号：US16886256
申请日：2020-05-28
Applicant: Apple Inc.
Inventor： Ajit Nimbalker , Alexei Davydov , Gang Xiong , Yushu Zhang
Abstract: Embodiments of a User Equipment (UE), Next Generation Node-B (gNB) and methods of communication are generally described herein. The UE may receive an information element (IE) that includes: a higher layer parameter that indicates a plurality of modulation and coding scheme (MCS) thresholds; and another higher layer parameter that includes a plurality of resource block (RB) thresholds. The UE may determine a time density of phase tracking reference signal (PT-RS) to be transmitted by the UE based at least partly on a comparison between a MCS and the plurality of MCS thresholds. The UE may determine a frequency density of the PT-RS based at least partly on a comparison between a scheduled bandwidth and the plurality of RB thresholds. The UE may encode the PT-RS for transmission in accordance with the determined time density and the determined frequency density.
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公开(公告)号：US20200274660A1
公开(公告)日：2020-08-27
申请号：US16646188
申请日：2018-09-10
Applicant: Apple Inc.
Inventor： Gang Xiong , Alexei Davydov , Seunghee Han , Yushu Zhang , Joonyoung Cho
IPC: H04L5/00
Abstract: Methods and apparatuses for channel state information report on physical uplink shared channel in new radio are provided. An apparatus for a user equipment (UE), comprising: a processor, configured to generate a uplink (UL) signal data for a physical uplink shared channel (PUSCH) by using a resource mapping scheme; and a radio frequency (RF) interface, configured to receive the generated UL signal data from the processor, wherein at least a part of the resource mapping scheme is predefined, configured by higher layer signalling, or indicated in downlink control information (DCI).
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公开(公告)号：US20200186226A1
公开(公告)日：2020-06-11
申请号：US16792781
申请日：2020-02-17
Applicant: Apple Inc.
Inventor： Yushu Zhang , Gang Xiong , Honglei Miao , Hong He , Guotong Wang , Alexei Vladimirovich Davydov , Seunghee Han , Avik Sengupta
Abstract: User equipment (UE) can include processing circuitry configured to decode radio resource control (RRC) signaling from a base station, the RRC signaling indicating a transmission coding scheme for a physical uplink shared channel (PUSCH) transmission. PUSCH-to-phase tracking reference signal (PT-RS) energy per resource element (EPRE) ratio is determined using the RRC signaling. A PT-RS power boosting factor is determined based on the transmission coding scheme and the PUSCH-to-PT-RS EPRE ratio. The PT-RS is encoded for transmission using a plurality of PT-RS symbols, the transmission to using increased transmission power corresponding to the PT-RS power boosting factor. The RRC signaling further includes a flag enabling the PT-RS transmission. The PUSCH-to-PT-RS EPRE ratio is 00 or 01, and the transmission coding scheme is a codebook-based uplink transmission or non-codebook-based uplink transmission.
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Patent Agency Ranking
公开(公告)号：US12262392B2
公开(公告)日：2025-03-25
申请号：US18477041
申请日：2023-09-28
Applicant: Apple Inc.
Inventor： Gang Xiong , Jeongho Jeon , Joonyoung Cho , Debdeep Chatterjee , Sergey Panteleev , Yushu Zhang
Abstract: An apparatus, method, system and machine-readable medium. The apparatus may be an apparatus of a New Radio (NR) gNodeB or of a NR User Equipment (UE), and may include a memory and processing circuitry. The processing circuitry for the apparatus of the gNodeB is to: configure a plurality of bandwidth parts (BWPs) associated with respective numerologies; determine a physical downlink control channel (PDCCH) including downlink control information (DCI), the DCI including information on scheduled resources including BWP index for a data transmission to or from a User Equipment (UE), the data transmission to occupy one of the plurality of BWPs or multiple ones of the plurality of BWPs; encode the PDCCH for transmission; and process the data transmission based on the DCI. The apparatus of the NR UE is to: process a physical downlink control channel (PDCCH) from a NR gNodeB, the PDCCH including downlink control information (DCI) indicating scheduled resources for a data transmission to or from the UE, the data transmission to occupy one or multiple ones of a plurality of BWPs configured by the gNodeB; and process the data transmission based on the DCI.
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公开(公告)号：US12213179B2
公开(公告)日：2025-01-28
申请号：US17420185
申请日：2020-01-10
Applicant: Apple Inc.
Inventor： Gang Xiong , Yushu Zhang , Yongjun Kwak , Sergey Sosnin , Hwan-Joon Kwon
IPC: H04W74/0833
Abstract: Some embodiments of this disclosure include apparatuses and methods for a fallback procedure for a 2-step random access channel (RACH) procedure for data transmission in a wireless communication system where the apparatuses and methods include at least generating, by a user equipment (UE), a first signal that includes a first message (MsgA) for a 2-step random access channel (RACH) procedure, transmitting, by the UE, the first signal to a next generation NodeB (gNB), determining, by the UE, whether a 4-step RACH procedure is to be used to further transmit the first signal including the MsgA, and further transmitting, by the UE, the first signal to the gNB using the 4 step RACH procedure based on determining that the 4-step RACH procedure should be used.
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公开(公告)号：US12200733B2
公开(公告)日：2025-01-14
申请号：US18404410
申请日：2024-01-04
Applicant: Apple Inc.
Inventor： Hong He , Debdeep Chatterjee , Gang Xiong , Hwan-Joon Kwon , Sergey Sosnin , Yongjun Kwak
IPC: H04W72/23 , H04L1/1812 , H04L1/1867 , H04W72/044 , H04W72/12 , H04L1/08
Abstract: Embodiments of a User Equipment (UE), Generation Node-B (gNB) and methods of communication are disclosed herein. The UE may receive a physical downlink control channel (PDCCH) that schedules a physical downlink shared channel (PDSCH) in a slot, and on a component carrier (CC) of a plurality of CCs. The PDCCH may include a total downlink assignment index (DAI) and a counter DAI for hybrid automatic repeat request acknowledgement (HARQ-ACK) feedback of the PDSCH. The total DAI may indicate a total number of pairs of CCs and slots for the HARQ-ACK feedback. The UE may encode the HARQ-ACK feedback to include a bit that indicates whether the PDSCH is successfully decoded. A size of the HARQ-ACK feedback may be based on the total DAI, and a position of the bit may be based on the counter DAI.
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公开(公告)号：US12185322B2
公开(公告)日：2024-12-31
申请号：US17530642
申请日：2021-11-19
Applicant: Apple Inc.
Inventor： Gang Xiong , Debdeep Chatterjee , Sergey Panteleev
IPC: H04W72/21 , H04L1/1607 , H04L5/00 , H04W56/00 , H04W72/0446 , H04W72/20 , H04L5/14 , H04W72/23
Abstract: Methods and architectures for establishing an uplink control channel in a fifth generation (5G) or new radio (NR) wireless network includes transmitting scheduling requests (SRs) at sub-slot level/symbol-level periodicities and determining whether SR transmit opportunities will collide with downlink (DL) signals being received and halting an SR transmission if the timing of DL symbols overlap at an OFDM symbol with the SR transmission.
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公开(公告)号：US12177831B2
公开(公告)日：2024-12-24
申请号：US17421491
申请日：2020-01-10
Applicant: Apple Inc.
Inventor： Qian Li , Gang Xiong , Geng Wu
IPC: H04W72/12 , H04W72/1268 , H04W72/23
Abstract: Disclosed herein are systems and methods for providing low-latency uplink scheduling requests. For instance, a user equipment (UE) can determine a time of transmission of uplink (UL) data by the UE to a UL device. The UE can further generate control data comprising the determined time of transmission and size information for the UL data. The UE can further provide the control data to the UL device prior to providing the UL data to the UL device. The UE can further receive a UL grant from the UL device. The UE can further provide the UL data to the UL device in response to receiving the UL grant.
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