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公开(公告)号：US20240333421A1
公开(公告)日：2024-10-03
申请号：US18616967
申请日：2024-03-26
发明人： Sherry IGNATCHENKO
CPC分类号： H04L1/0042 , H04L1/0063 , H04L1/08
摘要： The systems and methods described herein provide techniques for improving asset download time using forward error correction to recover lost packets or data. In various implementations, a sending device may be configured to encode redundant data in a data stream that enables a receiving device to reconstruct the data in the file if a portion of the data is not received. The redundant data may be based on single parity, in which the redundant data is generated using XOR (similar to the RAID-5 encoding methods), or the redundant data may be based on dual parity, in which the redundant data is generated using Galois fields (similar to the RAID-6 encoding methods). In some embodiments, the redundant data may be transmitted in separate packets. In other embodiments, the redundant data may be included as part of the data stream.
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公开(公告)号：US12074613B2
公开(公告)日：2024-08-27
申请号：US18075226
申请日：2022-12-05
发明人： Kyung-Joong Kim , Se-ho Myung , Hong-sil Jeong
CPC分类号： H03M13/1157 , H03M13/1165 , H03M13/255 , H03M13/618 , H04L1/0041 , G06F11/1004 , H03M13/1148 , H03M13/1191 , H03M13/152 , H03M13/253 , H03M13/2906 , H03M13/611 , H04L1/0057 , H04L1/0063 , H04L1/0069
摘要： A transmitter is provided. The transmitter includes: an outer encoder configured to encode input bits to generate outer-encoded bits including the input bits and parity bits; a zero padder configured to constitute Low Density Parity Check (LDPC) information bits including the outer-encoded bits and zero bits; and an LDPC encoder configured to encode the LDPC information bits, wherein the LDPC information bits are divided into a plurality of bit groups, and wherein the zero padder pads zero bits to at least some of the plurality of bit groups, each of which is formed of a same number of bits, to constitute the LDPC information bits based on a predetermined shortening pattern which provides that the some of the plurality of bit groups are not sequentially disposed in the LDPC information bits.
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公开(公告)号：US12068848B2
公开(公告)日：2024-08-20
申请号：US17862620
申请日：2022-07-12
申请人： Mariana Goldhamer
发明人： Mariana Goldhamer
CPC分类号： H04L1/0041 , H04L1/0063 , H04W36/0072
摘要： A radio communication link is established between first and second nodes in a cellular network, which comprise at least channel coding and decoding of first and second Physical (PHY) layers and first and second Medium Access Control (MAC) sublayers.
User data is transmitted from the first node to the second node while applying a PHY Forward Error Correction (FEC) algorithm in transmission for coding and in reception for decoding by the first and second PHY layers.
A value of a PHY-FEC error metric is computed with respect to errors in the user data received by the second node that are uncorrected by the PHY FEC algorithm.
The received user data including the uncorrected errors is transferred from the second PHY layer to the second MAC sublayer, subject to the value of the PHY-FEC error metric being less than a threshold used by an error tolerance procedure.-
公开(公告)号：US20240235734A9
公开(公告)日：2024-07-11
申请号：US18048809
申请日：2022-10-21
申请人： VIAVI Solutions Inc.
发明人： Jiancao HOU , Wei LI , Matthew David BROWN , Chi-ming LEUNG
CPC分类号： H04L1/0063 , H03M13/13 , H03M13/3776
摘要： A device may receive a PDCCH signal, may decode encoded bits of the PDCCH signal to generate coded bits, may reencode the coded bits, and may calculate a detection error probability of each coded bit at an output of soft demodulation. The device may calculate a channel decoding error probability that cyclic redundancy check bits are still attached to the coded bits, and may calculate an error probability of channel reencoding, of each coded bit, due to error propagation of polar decoding and reencoding. The device may calculate a probability density of a BMR associated with the coded bits, and may calculate a threshold based on the detection error probability, the channel decoding error probability, the error probability of channel reencoding, and the probability density of a BMR. The device may determine that the PDCCH signal is invalid based on the BMR being greater than the threshold.
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公开(公告)号：US20240214116A1
公开(公告)日：2024-06-27
申请号：US18146816
申请日：2022-12-27
IPC分类号： H04L1/00 , H03M13/25 , H04B7/06 , H04L1/1812 , H04W72/1273
CPC分类号： H04L1/0063 , H03M13/255 , H04B7/0632 , H04L1/1812 , H04W72/1273
摘要： Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a reference signal for estimation of at least one parameter associated with generation of an adapted low density parity check (LDPC) graph. The UE may transmit an indication of an adapted LDPC graph that is based on at least one adaptation metric associated with the at least one parameter. The UE may receive, based on the adapted LDPC graph, a downlink shared channel communication. Numerous other aspects are described.
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公开(公告)号：US20240080888A1
公开(公告)日：2024-03-07
申请号：US18468522
申请日：2023-09-15
发明人： Alexander Johann Maria Golitschek Edler von Elbwart , Prateek Basu Mallick , Joachim Loehr , Hyejung Jung , Vijay Nangia
IPC分类号： H04W74/08 , H04L1/00 , H04L1/1812 , H04W24/08 , H04W72/0446 , H04W72/23 , H04W76/11 , H04W80/02
CPC分类号： H04W74/0808 , H04L1/0063 , H04L1/1819 , H04W24/08 , H04W72/0446 , H04W72/23 , H04W74/0833 , H04W76/11 , H04W80/02
摘要： Apparatuses, methods, and systems are disclosed for efficient RACH behavior. One method performed by a UE includes transmitting a first PRACH preamble to a base unit to start a RACH procedure and receiving a RAR (Msg2) from the base unit during a random access response window. The method includes transmitting a second PRACH preamble in response to being unable to transmit a RACH Msg3 within an indicated transmission opportunity. The UE may obtain multiple transmission opportunities for transmitting a RACH message such as RACH Msg1 or RACH Msg3 or monitor for multiple RACH Msg2 where transmission opportunity data are conveyed via a RACH Order, an RAR, or DCI for the RACH message. An apparatus or system may perform steps of the method.
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公开(公告)号：US20230379080A1
公开(公告)日：2023-11-23
申请号：US17748579
申请日：2022-05-19
发明人： Peer Berger , Shay Landis , Assaf Touboul
CPC分类号： H04L1/0063 , H04L1/0027 , H03M13/255 , H03M13/1515
摘要： Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit an indication to a network entity that the UE is capable of decoding Reed-Solomon codes and that the UE is capable of performing near maximal likelihood demodulation. The network entity may transmit a message indicating that a Reed-Solomon code is applied to one or more scheduled signals based at least in part on the indication. The network entity may apply Reed-Solomon coding to a signal of the one or more scheduled signals based at least in part on the message. The UE may apply near maximal likelihood demodulation and Reed-Solomon decoding to a received signal of the one or more scheduled signals based at least in part on the message.
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公开(公告)号：US11805547B2
公开(公告)日：2023-10-31
申请号：US16456477
申请日：2019-06-28
发明人： Alexander Johann Maria Golitschek Edler von Elbwart , Prateek Basu Mallick , Joachim Loehr , Hyejung Jung , Vijay Nangia
IPC分类号： H04W74/08 , H04W76/11 , H04L1/00 , H04L1/1812 , H04W24/08 , H04W72/0446 , H04W80/02 , H04W72/23
CPC分类号： H04W74/0808 , H04L1/0063 , H04L1/1819 , H04W24/08 , H04W72/0446 , H04W72/23 , H04W74/0833 , H04W76/11 , H04W80/02
摘要： Apparatuses, methods, and systems are disclosed for efficient RACH behavior. One apparatus includes a transmitter that transmits a first PRACH preamble to a base unit to start a RACH procedure; a receiver that receives a RAR (Msg2) from the base unit during a random access response window; and a processor that controls the transmitter to transmit a second PRACH preamble in response to being unable to transmit a RACH Msg3 within an indicated transmission opportunity. The processor may obtain multiple transmission opportunities for transmitting a RACH message such as RACH Msg1 or RACH Msg3 or monitor for multiple RACH Msg2 where transmission opportunity data are conveyed via a RACH Order, an RAR, or DCI for the RACH message. A method or system may perform functions of the apparatus.
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公开(公告)号：US11736328B2
公开(公告)日：2023-08-22
申请号：US17232147
申请日：2021-04-16
发明人： Juhyung Son , Jinsam Kwak , Geonjung Ko
CPC分类号： H04L27/2613 , H04L1/0031 , H04L1/0063 , H04L1/0079 , H04L5/0023 , H04L5/0092 , H04W72/0453 , H04W72/23 , H04L27/26132 , H04W84/12
摘要： A wireless communication terminal is disclosed. The wireless communication terminal includes a transceiver transmitting/receiving a wireless signal, and a processor controlling an operation of the wireless communication terminal. The transceiver obtains a signaling field from a physical frame including data to be transmitted from a base wireless communication terminal to each of a plurality of wireless communication terminals including the wireless communication terminal, and receives, from the physical frame based on the signaling field, the data having been transmitted from the base wireless communication terminal to the wireless communication terminal. The signaling field signals information about the plurality of wireless communication terminals. The base wireless communication terminal is any one wireless communication terminal different from the plurality of wireless communication terminals.
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公开(公告)号：US20230209604A1
公开(公告)日：2023-06-29
申请号：US17768760
申请日：2020-11-03
发明人： Jing LEI , Ruiming Zheng , Linhai HE
CPC分类号： H04W74/0833 , H04W74/006 , H04L1/0063
摘要： Methods, systems, and devices for wireless communications are described to differentiate random access response types, such that a user equipment (UE) may identify a random access response for the UE. A UE may transmit a random access message that may be associated with a first type of random access response. The base station may be configured to communicate different types of random access responses, and may configure a random access response and an associated downlink control signal to correspond to the first type of random access response. The base station may transmit the downlink control signal to the UE by configuring different demodulation reference signals, different group identifiers, different search spaces or control resource sets, or different downlink control information. The UE may determine that the random access response is of the first type and may receive the random access response based on the decoded downlink control signal.
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