METHODS AND PROCEDURES FOR FLEXIBLE AND HIGHLY-PARALLEL POLAR ENCODING AND DECODING

    公开(公告)号:US20220094468A1

    公开(公告)日:2022-03-24

    申请号:US17425441

    申请日:2020-01-29

    IPC分类号: H04L1/00 H04W88/08

    摘要: A method performed by a WTRU may comprise generating a polar factor graph and pruning the polar factor graph to generate a pruned factor graph. The pruned factor graph may include input variable nodes, check nodes and output variable nodes. The method may further comprise the initializing input variable nodes. For each of a plurality of encoding levels of the pruned factor graph, values from the input variable nodes may be transferred to the check nodes. Operations, for example, XOR) additions, may be performed on the values of the check nodes. Check nodes having a single connection to another node not used in a previous transfer may be identified. Values from the identified check nodes may be transferred to the input variable nodes. Binary values from the input variable nodes may be transferred to the output variable nodes for transmission to a receiver.

    METHODS AND APPARATUS FOR ERROR-CORRECTING DIFFERENCE-TRIANGLE-SET PRODUCT CONVOLUTIONAL CODES

    公开(公告)号:US20210399832A1

    公开(公告)日:2021-12-23

    申请号:US17287723

    申请日:2019-10-22

    IPC分类号: H04L1/00 H03M13/29 H04B1/38

    摘要: Methods, apparatus, systems, architectures and interfaces for encoding/decoding a QD-DTS-PrCC are provided. The decoding method includes determining a number kTS of input bits included in a transmission of a data stream and a first bit of the input bits included in the transmission in the data stream; determining a number of Encoded Bit Blocks (EBBs), each of the EBBs including any number of data blocks that are previously transmitted Transmit Segments (TS) of the data stream, each of the data blocks having a bit length of kTS bits; selecting that number of EBBs for encoding a QD-DTS-PrCC component codeword (QDCC) of the transmission according to a DTS indexing method for indexing a plurality of EBBs; generating the QDCC including a TS, Virtual Segments (VSs), and rc parity bits, a dimensionality of the QD-DTS-PrCC being at least 2; and extracting the calculated TS of the QDCC to an output EBB.

    Methods, apparatus, systems and procedures for hybrid automatic repeat requests (HARQs) using polar codes

    公开(公告)号:US11050519B2

    公开(公告)日:2021-06-29

    申请号:US16564567

    申请日:2019-09-09

    IPC分类号: H04L1/18 H04L1/00 H04L5/00

    摘要: Methods, apparatuses, and systems implemented by a transmitting node (TN), are provided. A representative method implemented by a TN may include generating a first set of polar coded bits (PCBs), sending the first set of PCBs or an interleaved copy of the first set of PCBs in a first transmission, and selecting one code generating operation (CGO) from a plurality of CGOs based on a number of shortened bits associated with the shortening operation. The method may also include storing in a circular buffer a second set of PCBs based on the first set of PCBs or a mother code block (MCB) in accordance with the selected CGO, on condition that the first transmission was not successful, outputting, from the circular buffer, a copy of a part of the second set of PCBs for transmission; and sending the copy of the second set of PCBs in a second transmission.

    Methods of offloading computation from mobile device to cloud

    公开(公告)号:US11782768B2

    公开(公告)日:2023-10-10

    申请号:US16065577

    申请日:2016-12-22

    发明人: Onur Sahin

    IPC分类号: G06F9/50 H04W52/02

    摘要: Systems, methods and instrumentalities are disclosed for offloading computation for an application on a local device in a wireless network, comprising determining service-level requirements for the application, wherein the service-level requirements comprise one or more of latency, reliability, and power consumption for processing; determining wireless network conditions; determining local device conditions; partitioning the application into one or more tasks; comparing a processing time of a task at the local device to a latency requirement of the task, and: if the processing time of the local device would exceed the latency requirement of the task, determining to offload the task; and if the processing time of the local de vice would not exceed the latency requirement of the task, comparing a power consumed at the local device to offload the task to a power consumed at the local device to execute the task, wherein if the power consumed at the local device to offload the task is less than the power consumed (e.g., while satisfying the latency and reliability requirements of the task) at the local device to execute the task, determining to offload the task.

    JOINT COMMUNICATION AND SENSING AIDED BEAM MANAGEMENT FOR NR

    公开(公告)号:US20220225121A1

    公开(公告)日:2022-07-14

    申请号:US17635209

    申请日:2020-08-14

    IPC分类号: H04W16/28 H04W24/08 H04L5/00

    摘要: Methods and apparatuses for receive (Rx) beam selection are described herein. A wireless transmit/receive unit (WTRU) may be configured to receive, from a base station (BS), configuration information for joint communication and sensing (JCS) reference signals. The configuration information may include resources for reference signal transmission and resources for measurement reporting. The WTRU may be further configured to receive, from the BS, an indication to activate a subset of the resources for JCS reference signal transmission. The WTRU may be further configured to transmit, a plurality of JCS reference signals using the activated subset of resources for reference signal transmission. The WTRU may be further configured to measure, via a plurality of Rx beams, a backscatter power associated with each of the transmitted plurality of JCS reference signals. The WTRU may be further configured to calculate beam blockage statistics based on the measured backscatter power.

    REDUCED COMPLEXITY POLAR ENCODING AND DECODING

    公开(公告)号:US20210058100A1

    公开(公告)日:2021-02-25

    申请号:US17040131

    申请日:2019-03-21

    IPC分类号: H03M13/00 H03M13/13

    摘要: Systems, methods, and instrumentalities are described herein that may be used for reduced complexity polar encoding and decoding. There may be a set of encoding nodes to be used for polar encoding. An encoding node may be associated with a bit index and/or a relaxation level. A relaxation attribute may be selected for the encoding node. A relaxation group may be determined based on the relaxation attributes. The relaxation group may include two encoding nodes associated with consecutive bit indexes, an initial relaxation level, and the first relaxation attribute. A final relaxation level may be determined. Relaxation may be performed on the encoding nodes in the relaxation group. For example, an XOR operation between the encoding nodes may be omitted. Relaxation may be performed on the encoding nodes associated with each relaxation level up to the final relaxation level.

    Procedures for dynamically configured network coding based multi-source packet transmission utilizing ICN

    公开(公告)号:US10772036B2

    公开(公告)日:2020-09-08

    申请号:US16313433

    申请日:2017-07-06

    摘要: Systems and methods related to a multi-server pull-based HTTP request-response structure over ICN systems. In one embodiment, a method comprises: publishing an ICN content request from a cNAP with identification CIDURI; receiving at the cNAP a response from at least one sNAP indicating the availability of the requested content at the at least one sNAP; identifying at the cNAP an optimal segment number, k*, and a set I* of the server IDs, i*, to participate in a network coding based transmission; transmitting the optimal segment number k* from the cNAP to each sNAP identified in the set I*; receiving, at the cNAP, network coding based transmissions from the sNAPs identified in the set I*, and performing decoding of an overall message at the cNAP.