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公开(公告)号：US20180035411A1
公开(公告)日：2018-02-01
申请号：US15550770
申请日：2016-01-28
Applicant: DATANG LINKTESTER TECHNOLOGY CO., LTD.
Inventor： Haixia WANG , Yajun LIU , Chunbai TAN
CPC classification number: H04W72/042 , H04L1/00 , H04L1/0038 , H04L1/0045 , H04L1/0061 , H04L5/0053
Abstract: A blind detection method and system for a PDCCH. The method comprises: acquiring PDCCH data; grouping the PDCCH data according to a location identifier of a resource element, and obtaining soft bit data according to each set of PDCCH data after grouping; acquiring control channel soft bit data from the soft bit data; determining DCI data according to the control channel element soft bit data; and acquiring a random access radio network temporary identifier according to the DCI data, to complete blind detection of a PDCCH. The technical solutions in the present application are applicable to a case in which an RNTI of a user is not determined, can ensure accuracy of blind detection of a PDCCH, and greatly reduce a calculation amount and a calculation time.
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公开(公告)号：US20180034594A1
公开(公告)日：2018-02-01
申请号：US15727907
申请日：2017-10-09
Applicant: Zoom Video Communications, Inc.
Inventor： Qiyong Liu , Zhaofeng Jia , Kai Jin , Jing Wu , Huipin Zhang
CPC classification number: H04L1/08 , H04L1/0009 , H04L1/0045 , H04L1/007 , H04L1/0076 , H04L1/1867 , H04L43/0829 , H04L65/403 , H04L65/607 , H04L65/80 , H04L2001/0093 , H04N7/152
Abstract: An error resilience method comprising: using a computer, creating and storing, in computer memory, one or more FEC filter tables for use by the FEC filter for selectively forwarding a FEC packet; selectively forwarding a request for the FEC packet through a FEC filter based on the FEC table and a dynamic packet loss level at a receiver; limiting a re-transmission request for a particular packet through the FEC filter based on a number of re-transmission requests for the particular packet; and selectively skipping a key frame request based on a number of key frame requests received from a plurality receiver devices, wherein the method is performed by one or more special-purpose computing devices.
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公开(公告)号：US09880898B2
公开(公告)日：2018-01-30
申请号：US14793914
申请日：2015-07-08
Applicant: ARM LIMITED
Inventor： Michael Williams , Simon John Craske , Loïc Pierron
CPC classification number: G06F11/1004 , H04L1/004 , H04L1/0045 , H04L1/0061 , H04L2001/0094
Abstract: Transmission control checking circuitry adds control check data to a transaction response which is received at a transaction master and compared with expected data at the transaction master. The expected data having control check data may be a unique transaction identifier. The transaction master generated the unique transaction identifier when it generated the transaction request and will check that the transaction responses include that unique transaction identifier. In this way, errors in the control of transmission of transactions (e.g., misrouting) may be detected.
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公开(公告)号：US20180026746A1
公开(公告)日：2018-01-25
申请号：US15542232
申请日：2016-09-15
Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Inventor： Stefan BRUHN , Tomas FRANKKILA , Karl HELLWIG
CPC classification number: H04L1/0045 , G10L19/00 , H04L1/0082 , H04L1/08 , H04L49/90 , H04L65/608
Abstract: In accordance with an example embodiment of the present invention, disclosed is a method and an apparatus thereof for removing jitter introduced by a packet switched network. Each received audio frame comprises a primary portion and a redundancy portion. The redundancy portion comprises a partial redundant copy of a previous frame that is offset by k frames. If a frame n is lost, a frame n+k that comprises the partial redundant copy of the lost frame n, is located in a jitter buffer. Based on the frame n+k, a substitute frame n′ substituting the lost frame n is created and a substitution indicator of the substitute frame n′ is set to indicate that the redundancy portion of the substitute fame n′ should be used in decoding.
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公开(公告)号：US20180026726A1
公开(公告)日：2018-01-25
申请号：US15714990
申请日：2017-09-25
Applicant: INPHI CORPORATION
CPC classification number: H04B10/6165 , H04B10/616 , H04L1/0045 , H04L1/0054 , H04L7/033
Abstract: A receiver architecture and method recovers data received over an optical fiber channel in the presence of cycle slips. In a first cycle slip recovery architecture, a receiver detects and corrects cycle slips based on pilot symbols inserted in the transmitted data. In a second cycle slip recovery architecture, a coarse cycle slip detection is performed based on pilot symbols and a cycle slip position estimation is then performed based on carrier phase noise. The receiver compensates for cycle slips based on the position estimation.
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Patent Agency Ranking
126.发明申请公开(公告)号：US20180026662A1
公开(公告)日：2018-01-25
申请号：US15339264
申请日：2016-10-31
Applicant: Samsung Electronics Co., Ltd.
Inventor： Hyungu KANG , Yoochang EUN
CPC classification number: H03M13/413 , H03M13/23 , H03M13/3738 , H03M13/3961 , H03M13/4107 , H03M13/6502 , H03M13/658 , H03M13/6583 , H04L1/0045 , H04L1/0046 , H04L1/0052 , H04L1/0059 , H04W72/042 , H04W84/042
Abstract: A mobile device includes a display, a mobile-communication modem including a Viterbi decoder (VD) configured to decode a tail biting convolutional code (TBCC)-encoded data, a memory coupled to the mobile-communication modem, and a wireless antenna coupled to the mobile-communication modem and to receive a Physical Downlink Control Channel (PDCCH). The VD is configured to: receive data encoded by TBCC; select a candidate to initiate a training section; determine final path metric (PM) values of possible states at a last step of the training section; determine a PM-related value based on the final PM values of the possible states; and determine an early termination of a decoding for the candidate based on the PM-related value.
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公开(公告)号：US20180018222A1
公开(公告)日：2018-01-18
申请号：US15718025
申请日：2017-09-28
Applicant: International Business Machines Corporation
Inventor： Andrew D. Baptist , Ilya Volvovski , Gary W. Grube , Timothy W. Markison , S. Christopher Gladwin , Greg R. Dhuse , Jason K. Resch
CPC classification number: G06F11/1028 , G06F11/1076 , G06F16/182 , G06F2211/1028 , H03M13/05 , H03M13/1515 , H03M13/29 , H03M13/373 , H03M13/3761 , H04L1/0041 , H04L1/0045 , H04L1/0057 , H04L1/06 , H04L45/12 , H04L45/22 , H04L45/28 , H04L45/30 , H04L65/607 , H04L65/80 , H04L67/1097 , H04L69/24 , H04L2001/0096
Abstract: A method for use in a relay unit includes receiving a dispersed storage error encoded data slice, and obtaining a current routing path associated with it. A predicted performance of the current routing path is determined, and a check is performed to determine whether a predicted performance of the current routing path fails to satisfy a performance threshold. If the performance threshold is not satisfied, alternate performance information associated with one or more alternate routing paths is obtained. Based at least in part on the alternate performance information, one of the one or more alternate routing paths is selected as a new routing path. The dispersed storage error encoded data slice is transmitted via the new routing path, instead of using the current routing path previously obtained.
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公开(公告)号：US20180006668A1
公开(公告)日：2018-01-04
申请号：US15198487
申请日：2016-06-30
Applicant: Mapper Lithography IP B.V.
Inventor： Marco Jan-Jaco WIELAND
IPC: H03M13/29 , H04L1/00 , H04L27/227
CPC classification number: H03M13/2927 , H03M5/00 , H04L1/0041 , H04L1/0045 , H04L27/2278
Abstract: The invention relates to a invention relates to a method and decoding device for receiving an input bit-stream comprising a sequence of n-bit pattern symbols as well as a unique n-bit comma symbol for synchronization, and for generating therefrom a synchronized output comprising a sequence of m-bit pattern words, with m
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公开(公告)号：US20170366199A1
公开(公告)日：2017-12-21
申请号：US15611201
申请日：2017-06-01
Applicant: YIQUN GE , RAN ZHANG , NAN CHENG , WUXIAN SHI
Inventor： YIQUN GE , RAN ZHANG , NAN CHENG , WUXIAN SHI
CPC classification number: H03M13/091 , G06F11/1479 , H03M13/09 , H03M13/13 , H04L1/0041 , H04L1/0045 , H04L1/0053 , H04L1/0054 , H04L1/0057 , H04L1/0061
Abstract: A first error-detecting code (EDC) is computed based on a first segment of a block of information that is to be encoded, and a second EDC is computed based on at least a second segment of the block of information. The first EDC is masked with a first masking segment and the second EDC with a second masking segment to generate a first masked EDC and a second masked EDC. The first masking segment and the second masking segment are associated with a target receiver of the block of information. A codeword is generated based on a code and an input vector that includes the first segment, the first masked EDC, the second segment, and the second masked EDC. This type of coding could be useful to support early termination of blind detection at a decoder, for example.
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130.发明申请公开(公告)号：US20170359147A1
公开(公告)日：2017-12-14
申请号：US15617242
申请日：2017-06-08
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Jung-hyun PARK , Sung-kyu JUNG , Chang-hoon CHOI
CPC classification number: H03M13/1125 , H04L1/0045 , H04L1/0057 , H04L2001/0093
Abstract: A channel decoding method is provided. The method includes storing, in a memory, a set of first log likelihood ratio (LLR) values corresponding to bits of a codeword generated by modulation of a channel-encoded signal; changing, into a preset value, at least one LLR value corresponding to previously defined bits of the codeword from among the set of the first LLR values, to generate a set of second LLR values; and performing forward error correction (FEC) based on the set of the second LLR values and an FEC code, to estimate the bits of the codeword, in which the FEC code comprises a constraint code for constricting a previously defined structural correlation between the bits of the codeword.
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