-
公开(公告)号：US20220070807A1
公开(公告)日：2022-03-03
申请号：US17405824
申请日：2021-08-18
Applicant: QUALCOMM Incorporated
Inventor： Chinmay Shankar VAZE , Alexei Yurievitch Gorokhov , Yongle Wu , Paolo Minero , Hari Sankar , Ashok Mantravadi , Raghu Narayan Challa , Arvind Vardarajan Santhanam
Abstract: A device may selectively listen for a tracking reference signal (TRS) during connected mode discontinuous reception (CDRx) based on whether the device is to switch between repeaters of a base station (such as during travel). A device may determine whether the device is in a high speed train (HST) scenario (such as based on a difference in frequency errors generated using a synchronization signal block (SSB) and generated using a TRS, based on a trajectory of a frequency error or a frequency error difference over time, based on instantaneous frequency errors, etc.). When the device is in a HST scenario, the device listens for a TRS during CDRx, and the device generates a frequency error using the TRS. When the device is not in a HST scenario, the device prevents listening for a TRS during CDRx (with a SSB received during CDRx to be used to generate a frequency error).
-
62.发明授权公开(公告)号：US11212053B2
公开(公告)日：2021-12-28
申请号：US16044385
申请日：2018-07-24
Applicant: QUALCOMM Incorporated
Inventor： Alexandros Manolakos , Jae Won Yoo , Hari Sankar , Yi Huang , Wanshi Chen , Juan Montojo , Peter Gaal
Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus maybe a base station or a UE. In an aspect, the apparatus may determine locations for a number of DM-RS symbols to be transmitted in a scheduling unit of a channel configured in a slot/mini-slot, where a last DM-RS symbol maybe positioned one symbol prior to a last symbol carrying scheduled data. In another aspect, the apparatus may determine the locations for the DM-RS symbols based on a selection between a first set of predetermined DM-RS positions and a second set of predetermined DM-RS positions. In another aspect, the apparatus may determine the locations for the DM-RS symbols based on a set number of symbols, wherein the determined locations are spaced apart according to the set number of symbols. The apparatus may transmit the DM-RS symbols based on the determined locations.
-
公开(公告)号：US11057151B2
公开(公告)日：2021-07-06
申请号：US16487050
申请日：2017-12-14
Applicant: QUALCOMM Incorporated , Yang Yang , Jing Jiang , Gabi Sarkis , Chao Wei , Jian Li , Changlong Xu , Hari Sankar , Joseph Binamira Soriaga
Inventor： Yang Yang , Jing Jiang , Gabi Sarkis , Chao Wei , Jian Li , Changlong Xu , Hari Sankar , Joseph Binamira Soriaga
Abstract: Methods, systems, and devices for wireless communication are described for mutual information based polar code construction. A wireless device may receive a codeword over a wireless channel, the codeword encoded using a polar code. The wireless device may identify a set of bit locations of the polar code corresponding to information bits of an encoded information bit vector. The set of bit locations may be determined based at least in part on a reliability order of the bit locations of the polar code, and the reliability order may be determined based at least in part on a recursive model that includes at least one mutual information transfer function that is applied at each polarization stage of multiple polarization stages of the polar code. The wireless device may decode the received codeword to obtain the information bit vector at the set of bit locations.
-
公开(公告)号：US10958379B2
公开(公告)日：2021-03-23
申请号：US15973365
申请日：2018-05-07
Applicant: QUALCOMM Incorporated
Inventor： Hobin Kim , Hari Sankar , Alexei Yurievitch Gorokhov , Michael Lee McCloud , Joseph Binamira Soriaga
Abstract: Aspects of the present disclosure relate to retransmissions of data within wireless communication networks. For a retransmission, at least a portion of the encoded bits of an original transmission may be mapped to different bit locations in one or more modulated symbols based on a non-random mapping rule. In some examples, the encoded bits of a symbol may be reversed within the symbol for a retransmission. In other examples, the first and last encoded bits within a symbol may be switched for a retransmission. Other non-random mapping rules, such as a bit location offset, may also be used to map encoded bits to different bit locations in the modulated symbol within a retransmission.
-
公开(公告)号：US20190372712A1
公开(公告)日：2019-12-05
申请号：US16476890
申请日：2018-02-17
Applicant: Qualcomm Incorporated
Inventor： Yang Yang , Jing Jiang , Changlong Xu , Gabi Sarkis , Chao Wei , Hari Sankar , Jian Li , Joseph Binamira Soriaga
IPC: H04L1/00
Abstract: Techniques are described for wireless communication. One method includes identifying a set of punctured bit locations in a received codeword. The received codeword is encoded using a polar code. The method also includes identifying a set of information bit locations of the polar code, with the set of information bit locations being determined based at least in part on polarization weights per polarized bit-channel of a polar code decoder that are a function of nulled repetition operations per polarization stage of the polar code identified based at least in part on the set of punctured bit locations. The method further includes processing the received codeword using the polar code decoder to obtain an information bit vector at the set of information bit locations.
-
Patent Agency Ranking
公开(公告)号：US20180234880A1
公开(公告)日：2018-08-16
申请号：US15713335
申请日：2017-09-22
Applicant: QUALCOMM Incorporated
Inventor： Jing Jiang , Seyedkianoush Hosseini , Huang Lou , Joseph Binamira Soriaga , Hari Sankar
CPC classification number: H04W28/04 , H04L1/0045 , H04L1/1607 , H04L1/1671 , H04L1/1812 , H04L1/1864 , H04L1/1887 , H04L1/1896
Abstract: Methods, systems, and devices for wireless communication are described that provide for generation of an encoded transport block (TB) that includes a number of systematic code blocks (CBs) and a number of parity CBs. The systematic CBs may be transmitted to a receiver, and the receiver may attempt to decode the systematic CBs. In some cases, one or more parity CBs may be transmitted with the systematic CBs, and the systematic CBs may be successfully decoded even in the event that one or more of the systematic CBs are not successfully received. In some cases, a receiver may provide feedback that requests that additional CBs be transmitted to decode the systematic CBs that were received, and it is not necessary to retransmit the missing systematic CBs. In some cases, a quantized value of a number of additional CBs needed to decode the TB may be transmitted.
-
公开(公告)号：US20180198564A1
公开(公告)日：2018-07-12
申请号：US15849034
申请日：2017-12-20
Applicant: QUALCOMM Incorporated
Inventor： Yang Yang , Jing Jiang , Gabi Sarkis , Huang Lou , Hari Sankar
Abstract: Decoding and encoding methods, systems, and devices for wireless communication are described. One method may include receiving a codeword over a wireless channel, the codeword being encoded using a polar code, identifying a set of repeated bit locations in the received codeword, and identifying a set of bit locations of the polar code used for information bits for the encoding. The set of bit locations may be determined based at least in part on recursively partitioning bit-channels of the polar code for each stage of polarization and assigning portions of a number of the information bits to bit-channel partitions of each stage of polarization based on a mutual information transfer function of respective aggregate capacities of the bit-channel partitions. The method may also include decoding the received codeword according to the polar code to obtain an information bit vector at the set of bit locations, and other aspects and features.
-
公开(公告)号：US20180034589A1
公开(公告)日：2018-02-01
申请号：US15662012
申请日：2017-07-27
Applicant: QUALCOMM Incorporated
Inventor： Thomas Sun , Alexei Yurievitch Gorokhov , Hari Sankar
IPC: H04L1/00
CPC classification number: H04L1/0061 , H03M13/09 , H03M13/091 , H03M13/13 , H03M13/2906 , H03M13/3738 , H03M13/6502 , H04L1/0045 , H04L1/0052 , H04L1/0057
Abstract: Methods, systems, and devices for wireless communication are described. A wireless device may initiate a successive decoding process for an encoded code block received at the wireless device, and generate, using a successive decoder, one or more candidate paths for a first portion of the code block, where the first portion of the code block includes a first data portion and a first data check portion. The wireless device may then perform a checking function on respective first data portions for the one or more candidate paths using respective first data check portions, and determine whether to terminate the successive decoding process prior to completing decoding of the encoded code block based at least in part on determining whether the checking function for each of the one or more candidate paths for the first data portion has failed the checking function.
-
公开(公告)号：US20170338996A1
公开(公告)日：2017-11-23
申请号：US15428879
申请日：2017-02-09
Applicant: QUALCOMM Incorporated
Inventor： Hari Sankar , Jing Jiang , Alexei Yurievitch Gorokhov , Joseph Binamira Soriaga , Brian Banister
Abstract: Methods, systems, and devices for wireless communication are described. A transmitter, such as a user equipment and/or a base station, may perform polar coding to encode bits. The polar coding may be associated with a plurality of component channels associated with a polar code length. The transmitter may interleave the encoded bits. The transmitter may map the interleaved encoded bits to a modulation symbol. The interleaving and mapping of each encoded bit may be based on an asymmetry of a polar code construction. The transmitter may transmit the interleaved encoded bits based on the mapping.
-
公开(公告)号：US12279208B2
公开(公告)日：2025-04-15
申请号：US17848295
申请日：2022-06-23
Applicant: QUALCOMM Incorporated
Inventor： Jacob Pick , Assaf Touboul , Shay Landis , Alexei Yurievitch Gorokhov , Hari Sankar , Peer Berger
Abstract: A method of wireless communication by a receiver, includes predicting, with an artificial neural network, at each data block of a set of data blocks, a least complex set of demodulator parameters that will achieve a goal, based on features of a data block expected to be received. The method also includes dynamically selecting the least complex set of demodulator parameters, from multiple sets of demodulator parameters, based on the features of the data block expected to be received. The selecting occurring to prevent degradation of demodulation performance for each data block with the selected set of demodulator parameters for the data block, with respect to a more complex set of demodulator parameters.
-
-
-
-
-
-
-
-
-
Search Results
127
records
(took 0.044 seconds)
