专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2018205777A1 RATE-MATCHING SCHEME FOR POLAR CODES 审中-公开
公开(公告)号：WO2018205777A1
公开(公告)日：2018-11-15
申请号：PCT/CN2018/082085
申请日：2018-04-06
申请人： QUALCOMM INCORPORATED , XU, Changlong , WEI, Chao , JIANG, Jing , HOU, Jilei , YANG, Yang , SARKIS, Gabi
发明人： XU, Changlong , WEI, Chao , JIANG, Jing , HOU, Jilei , YANG, Yang , SARKIS, Gabi
IPC分类号： H04L1/00
摘要： Certain aspects of the present disclosure generally relate to wireless communications and, more particularly, to methods and apparatus for rate-matching a stream of bits encoded using polar codes. An exemplary method generally includes determining a mother code size (N) for transmitting an encoded stream of bits based, at least in part, on a minimum supported code rate for transmitting the encoded stream of bits (R min ), a control information size of the encoded stream of bits (K), a number of coded bits for transmission (E), and a maximum mother code size (N max ), encoding a stream of bits using a polar code of size (N, K) and storing the encoded stream of bits in a circular buffer, and performing rate-matching on the stored encoded stream of bits based, at least in part, on a comparison among the mother code size (N), the control information size of the encoded stream of bits (K), and the number of coded bits for transmission (E).

2. 发明申请

WO2018184159A1 CYCLIC REDUNDANCY CHECK (CRC) ATTACHMENTS FOR EARLY TERMINATION OF POLAR CODES 审中-公开
公开(公告)号：WO2018184159A1
公开(公告)日：2018-10-11
申请号：PCT/CN2017/079526
申请日：2017-04-06
申请人： QUALCOMM INCORPORATED , WEI, Chao , WU, Gaojin , XU, Changlong , JIANG, Jing , YANG, Yang , SARKIS, Gabi , LI, Jian , HOU, Jilei
发明人： WEI, Chao , WU, Gaojin , XU, Changlong , JIANG, Jing , YANG, Yang , SARKIS, Gabi , LI, Jian , HOU, Jilei
IPC分类号： H03M13/13 , H04L1/00
CPC分类号： H03M13/635 , H03M13/09 , H03M13/13 , H03M13/2906 , H04L1/00 , H04L1/0057 , H04L1/0061 , H04L1/0065
摘要： Certain aspects of the present disclosure relate to techniques and apparatus for improving performance of Polar codes. An exemplary method generally includes obtaining information bits, generating first cyclic redundancy check (CRC) bits based on the information bits, generating second CRC bits based on at least one of the information bits or the first CRC bits, generating polar codes based on the concatenation of the information bits with the first and second CRC bits, and transmitting a signal based on the polar codes.

3. 发明申请

WO2018130221A1 DYNAMIC FROZEN POLAR CODES 审中-公开
公开(公告)号：WO2018130221A1
公开(公告)日：2018-07-19
申请号：PCT/CN2018/072761
申请日：2018-01-16
申请人： QUALCOMM INCORPORATED , LI, Jian , XU, Changlong , WEI, Chao , HOU, Jilei , JIANG, Jing
发明人： LI, Jian , XU, Changlong , WEI, Chao , HOU, Jilei , JIANG, Jing
IPC分类号： H03M13/00
摘要： Certain aspects of the present disclosure generally relate to wireless communications and, more particularly, to methods and apparatus for dynamic frozen polar codes, for example, for control channels. An exemplary method may be performed at the encoder. The method generally includes encoding a stream of bits using a polar code. The encoding includes selecting a first set of channel indices for encoding information bits. The encoding includes selecting a second set of the channel indices smaller than a channel index for a first information bit for encoding fixed frozen bits. The encoding includes selecting remaining channel indices for dynamic frozen (PCF) bits having values based on one or more of the information bits. The method includes transmitting the encoded stream of bits.

4. 发明申请

WO2018129734A1 DYNAMIC FROZEN POLAR CODES 审中-公开
公开(公告)号：WO2018129734A1
公开(公告)日：2018-07-19
申请号：PCT/CN2017/071255
申请日：2017-01-16
申请人： QUALCOMM INCORPORATED , LI, Jian , XU, Changlong , WEI, Chao , HOU, Jilei , JIANG, Jing
发明人： LI, Jian , XU, Changlong , WEI, Chao , HOU, Jilei , JIANG, Jing
IPC分类号： H03M13/00
摘要： Certain aspects of the present disclosure generally relate to wireless communications and, more particularly, to methods and apparatus for dynamic frozen polar codes, for example, for control channels. An exemplary method may be performed at the encoder. The method generally includes encoding a stream of bits using a polar code, wherein the encoding includes setting a first set of bits of the stream of bits as dynamic frozen bits having values based on one or more information bits; and transmitting the encoded stream of bits.

5. 发明申请

WO2018127174A1 ENCODING AND DECODING USING GOLAY-BASED BLOCK CODES 审中-公开
公开(公告)号：WO2018127174A1
公开(公告)日：2018-07-12
申请号：PCT/CN2018/071772
申请日：2018-01-08
申请人： QUALCOMM INCORPORATED , WU, Liangming , XU, Changlong , JIANG, Jing , WEI, Chao , HOU, Jilei
发明人： WU, Liangming , XU, Changlong , JIANG, Jing , HOU, Jilei
IPC分类号： H04B7/04
摘要： Wireless communication devices are adapted to employ Golay-based matrices for encoding a wireless transmissions. According to at least one example, a wireless communication device can identify an information vector to be transmitted as a wireless communication. A Golay-based generator matrix may be selected based on a length of the information vector, where the selected Golay-based generator matrix is generated by shortening a Golay generator matrix by removing a plurality of columns of systematic bits and a plurality of rows to obtain the shortened generator matrix, and extending the shortened generator matrix to obtain an extended generator matrix by adding columns to at least the systematic bits and appending rows to obtain a desired matrix size. A respective bit value may be determined for bits in each added column and for at least some of the bits in each appended row. Other aspects, embodiments, and features are also included.

6. 发明申请

WO2018103288A1 EFFICIENT CONTROL CHANNEL DESIGN USING POLAR CODES 审中-公开
公开(公告)号：WO2018103288A1
公开(公告)日：2018-06-14
申请号：PCT/CN2017/087899
申请日：2017-06-12
申请人： QUALCOMM INCORPORATED , XU, Changlong , WEI, Chao , HOU, Jilei
发明人： XU, Changlong , WEI, Chao , HOU, Jilei
IPC分类号： H03M13/09
摘要： Aspects of the disclosure relate to wireless communication systems configured to provide techniques for multiplexing dedicated control information for a plurality of users in a single information block and polar coding the information block to produce a polar code block of dedicated control information for transmission over a wireless air interface. The information block may further include group cyclic redundancy check (CRC) information for the information block and individual CRC information for each dedicated control information.

7. 发明申请

WO2017193296A1 TECHNIQUES FOR A HYBRID AUTOMATIC REPEAT REQUEST (HARQ) MECHANISM WITH POLAR CODES 审中-公开
标题翻译：具有极化码的混合自动重发请求（HARQ）机制的技术
公开(公告)号：WO2017193296A1
公开(公告)日：2017-11-16
申请号：PCT/CN2016/081656
申请日：2016-05-11
申请人： QUALCOMM INCORPORATED , XU, Changlong , LI, Jian , WEI, Chao , WANG, Neng , HOU, Jilei
发明人： XU, Changlong , LI, Jian , WEI, Chao , WANG, Neng , HOU, Jilei
IPC分类号： H04L1/00
摘要： The present disclosure describes a method, an apparatus, and a computer readable medium for hybrid automatic repeat request (HARQ) transmissions. For example, the method may include generating a first codeword for a first information block, wherein the first codeword is a first polar code, and wherein the first information block includes cyclic redundancy check (CRC) bits; transmitting the first codeword to a receiver; determining that the first polar code is not successfully decoded at the receiver based at least on a first message received from the receiver; generating a second codeword for a second information block, wherein the second codeword is a first enhanced polar code, and wherein the second information block does not include any CRC bits; transmitting the second codeword to the receiver; and determining that the second codeword and the first codeword are successfully decoded at the receiver based at least on a second message received from the receiver.
摘要翻译：本公开描述了一种用于混合自动重传请求（HARQ）传输的方法，装置和计算机可读介质。例如，该方法可以包括：生成用于第一信息块的第一码字，其中第一码字是第一极性码，并且其中第一信息块包括循环冗余校验（CRC）比特; 将第一码字发送到接收机; 至少基于从所述接收器接收到的第一消息，确定所述第一极性码未在所述接收器处被成功解码; 产生用于第二信息块的第二码字，其中所述第二码字是第一增强极性码，并且其中所述第二信息块不包括任何CRC比特; 将第二码字传送给接收机; 以及至少基于从所述接收器接收的第二消息，确定所述第二码字和所述第一码字在所述接收器处被成功解码。

8. 发明申请

WO2017157027A1 HYBRID AUTOMATIC REPEAT REQUEST (HARQ) WITH POLAR CODED TRANSMISSIONS 审中-公开
标题翻译：具有极化编码传输的混合自动重复请求（HARQ）
公开(公告)号：WO2017157027A1
公开(公告)日：2017-09-21
申请号：PCT/CN2016/104582
申请日：2016-11-04
申请人： QUALCOMM INCORPORATED , XU, Changlong , LI, Jian , HOU, Jilei , WANG, Neng , WEI, Chao
发明人： XU, Changlong , LI, Jian , HOU, Jilei , WANG, Neng , WEI, Chao
IPC分类号： H04J11/00
摘要： For communication utilizing polar codes, a hybrid automatic repeat request (HARQ) algorithm is provided that takes advantage of the benefits of chase combining HARQ (HARQ-CC) and incremental redundancy HARQ (HARQ-IR), by selecting one or the other in accordance with a code rate of the first transmission. In some examples, the HARQ algorithm utilizes HARQ-IR when the code rate in the first transmission is greater than a code rate threshold, and utilizes HARQ-CC when the code rate in the first transmission is less than the code rate threshold.
摘要翻译：针对使用极性码的通信，提供了利用追踪组合HARQ（HARQ-CC）和增量冗余HARQ（HARQ-IR）的益处的混合自动重传请求（HARQ）算法，通过根据第一传输的码率选择一个或另一个。在一些示例中，当第一传输中的码率大于码率阈值时，HARQ算法利用HARQ-IR，并且当第一传输中的码率小于码率阈值时利用HARQ-CC。 p>

9. 发明申请

WO2018148866A1 FALSE ALARM RATE SUPPRESSION FOR POLAR CODES 审中-公开
公开(公告)号：WO2018148866A1
公开(公告)日：2018-08-23
申请号：PCT/CN2017/073488
申请日：2017-02-14
申请人： QUALCOMM INCORPORATED , WU, Gaojin , XU, Changlong , WEI, Chao , HOU, Jilei
发明人： WU, Gaojin , XU, Changlong , WEI, Chao , HOU, Jilei
IPC分类号： H03M13/09
CPC分类号： H03M13/13 , H03M13/09 , H03M13/2906 , H03M13/3738 , H04L1/00 , H04L1/0045 , H04L1/0057 , H04L1/0061
摘要： Methods, systems, and devices for wireless communication are described for false alarm rate suppression for polar codes. A list decoder may determine a path metric for each of multiple paths through a code tree for decoding a polar-encoded codeword, wherein a portion of each of the path metrics corresponds to at least one frozen bit in the polar-encoded codeword. A false alarm suppressor may determine a modified path metric for each of the paths by excluding the respective portion corresponding to the at least one frozen bit and determine a check metric for at least one of the paths based at least in part on the modified path metrics. An error detector may perform an error detecting algorithm on a bit sequence corresponding to the at least one of the plurality of paths based at least in part on the check metric satisfying a threshold.

10. 发明申请

WO2018137641A1 BROADCAST CHANNEL ENCODING AND DECODING 审中-公开
公开(公告)号：WO2018137641A1
公开(公告)日：2018-08-02
申请号：PCT/CN2018/073951
申请日：2018-01-24
申请人： QUALCOMM INCORPORATED , WEI, Chao , XU, Changlong , HOU, Jilei , LI, Jian
发明人： WEI, Chao , XU, Changlong , HOU, Jilei , LI, Jian
IPC分类号： H04L1/00
摘要： Methods, systems, and devices for wireless communication are described. In order to exchange data over a given wireless communication network, a wireless device may first perform a cell acquisition procedure (e.g., to determine cell-specific information such as timing and frequency offsets, bandwidth, control channel formatting, etc. ). In some systems, aspects of the timing information may be conveyed with scrambling codes applied to a master information block (MIB). Physical broadcast channel (PBCH) payloads, including MIB transmissions, may be jointly encoded with synchronization signal indices. Bursts of MIB transmissions may thus be decoded without blind decoding while maintaining error protection and low latency that may be necessary to obtain critical system information within the MIB.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式