公开(公告)号：US11736240B2

公开(公告)日：2023-08-22

申请号：US17347745

申请日：2021-06-15

申请人： Rovi Guides, Inc.

发明人： Rajendran Pichaimurthy ,  Dolphin Masilamany Santha ,  Gyanveer Singh ,  Prakash Viswanathan

IPC分类号： H04L1/1829 ,  H04L1/1867 ,  H04L65/61

CPC分类号： H04L1/1832 ,  H04L1/187 ,  H04L1/1838 ,  H04L1/1877 ,  H04L65/61

摘要： Systems and methods are described for streaming content to multiple devices from a shared sliding window buffer in kernel space, thereby reducing memory resource use and minimizing context/mode switching between kernel space and user space. For example, concurrent streaming sessions may be seen, e.g., as a live multimedia stream. If a live video is being transmitted as a multicast stream to many devices, rather than each device having a corresponding sliding window buffer in kernel space, each device will share a shared sliding buffer in kernel space. The sliding window buffer size will be at least large enough to stream the slowest connection speed and can be, e.g., multiple times as large as necessary, in case of the issues beyond the worst-case scenario. The system then transmits chunks of the content from the shared sliding window buffer to each of the plurality of client devices.

公开(公告)号：US10057812B2

公开(公告)日：2018-08-21

申请号：US14006428

申请日：2011-03-21

申请人： Peter Szilagyi ,  Zoltan Vincze ,  Csaba Vulkan

发明人： Peter Szilagyi ,  Zoltan Vincze ,  Csaba Vulkan

IPC分类号： H04W28/02 ,  H04W28/12 ,  H04L1/00 ,  H04L12/825 ,  H04W80/06 ,  H04L1/18 ,  H04L29/06

CPC分类号： H04W28/12 ,  H04L1/0002 ,  H04L1/187 ,  H04L47/263 ,  H04L69/163 ,  H04W28/0242 ,  H04W28/0273 ,  H04W80/06

摘要： The present invention provides a method, apparatus and a computer program product for improving TCP performance in mobile networks. The present invention discloses obtaining, at an intermediate network node, a quality measure of a connection between a content server and a user equipment, detecting, at the intermediate network node, whether the quality measure fulfils a predetermined condition, and, if the quality measure does not fulfill the predetermined condition, sending, by the intermediate network node, an acknowledgement message triggering a freeze mode of the connection between the content server and the user equipment.

公开(公告)号：US10009409B2

公开(公告)日：2018-06-26

申请号：US14910624

申请日：2013-08-08

申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)

发明人： Norbert Reider ,  Szilveszter Nádas ,  Sándor Rácz

IPC分类号： G06F15/16 ,  H04L29/08 ,  H04L1/18 ,  H04L29/06

CPC分类号： H04L67/06 ,  H04L1/1809 ,  H04L1/1841 ,  H04L1/187 ,  H04L1/1874 ,  H04L69/22

摘要： To increase the utilization of the radio link and to provide a low complexity approach to retransmission control with respect to a fragmenting transmission protocol and a stream of data packets considered for data transmission, there is provided a method of retransmission control with respect to a fragmenting transmission protocol and a stream of data packets considered for transmission. The method comprises the steps detecting (S12) data packets in the stream of data packets which are unnecessary retransmissions based on sequence numbers of the data packets, dropping (S14) data packets which are unnecessary retransmissions from the stream of data packets for setup of a modified stream of data packets, and transmitting (S16) the modified stream of data packets over a transmission link.

公开(公告)号：US20180160447A1

公开(公告)日：2018-06-07

申请号：US15872978

申请日：2018-01-16

申请人： WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

发明人： Minseok NOH ,  Jinsam Kwak ,  Juhyung Son

IPC分类号： H04W74/00 ,  H04W74/08 ,  H04W16/14 ,  H04L1/18 ,  H04L12/807 ,  H04W76/28

CPC分类号： H04W74/004 ,  H04L1/1812 ,  H04L1/1825 ,  H04L1/187 ,  H04L5/0055 ,  H04L47/27 ,  H04W16/14 ,  H04W72/042 ,  H04W74/08 ,  H04W74/0808 ,  H04W74/0866 ,  H04W76/27 ,  H04W76/28 ,  H04W88/08

摘要： Disclosed are a method, an apparatus, and a system for adjusting a contention window size for performing channel access. In detail, the method includes: receiving a plurality of hybrid automatic repeat request acknowledgement (HARQ-ACK) responses for downlink channel(s) of the specific cell; generating a random number N (N≥0) in a contention window size; and performing the downlink transmission in the specific cell after standing by for N slots while the specific cell is idle, wherein when a ratio of negative acknowledgement (NACK) among the plurality of HARQ-ACK responses is equal to or more than a reference value, the contention window size becomes larger than a previous value, and when the ratio of the NACK among the plurality of HARQ-ACK responses is less than the reference value, the contention window size is reset to a minimum value.

公开(公告)号：US09860915B2

公开(公告)日：2018-01-02

申请号：US15348912

申请日：2016-11-10

申请人： LG ELECTRONICS INC.

发明人： Young-Dae Lee ,  Seung-June Yi ,  So-Young Lee

IPC分类号： H04L12/28 ,  H04W74/04 ,  H04L1/16 ,  H04L1/18 ,  H04W28/06 ,  H04L12/801 ,  H04L12/815 ,  H04W28/04

CPC分类号： H04W74/04 ,  H04L1/1685 ,  H04L1/1809 ,  H04L1/1832 ,  H04L1/187 ,  H04L1/1877 ,  H04L1/188 ,  H04L47/225 ,  H04L47/34 ,  H04W28/04 ,  H04W28/06 ,  H04W28/065

摘要： A method of moving a receiving window in a wireless mobile communication system, wherein the AM RLC of the transmitting side sends information of the last discarded SDU regardless of continuity of the discarded SDUs. The AM RLC of the receiving side checks whether all SDUs from the start point of the receiving window up to the last discarded SDU are successfully received, delivers the SDUs that are successfully received to an upper layer, and discard only those SDUs that are not successfully received.

公开(公告)号：US09838901B2

公开(公告)日：2017-12-05

申请号：US15029515

申请日：2014-09-18

申请人： LG ELECTRONICS INC.

发明人： Sunyoung Lee ,  Seungjune Yi ,  Sungjun Park

IPC分类号： H04W24/08 ,  H04W76/00 ,  H04W24/10 ,  H04W56/00 ,  H04W72/04 ,  H04L1/18

CPC分类号： H04W24/10 ,  H04L1/187 ,  H04W56/00 ,  H04W56/0005 ,  H04W72/0413

摘要： The present invention relates to a wireless communication system. More specifically, the present invention relates to a method and a device for reporting an radio link problem in the wireless communication system, the method comprising: receiving an indicator indicating which cell is a first cell of the second BS from either the first BS or the second BS; detecting a radio link problem on a cell belonging to the second BS; and reporting the radio link problem of the second BS to the first BS if the cell, on which the radio link problem is detected, is indicated as the first cell by the indicator.

公开(公告)号：US09722737B2

公开(公告)日：2017-08-01

申请号：US14411718

申请日：2013-06-27

申请人： Samsung Electronics Co., Ltd.

发明人： Jingxing Fu ,  Chengjun Sun ,  Yingyang Li

IPC分类号： H04W72/04 ,  H04L1/18 ,  H04L1/16

CPC分类号： H04L1/1893 ,  H04L1/1607 ,  H04L1/1812 ,  H04L1/1854 ,  H04L1/187

摘要： A method and an apparatus for sending Hybrid Automatic Repeat Request acknowledgement (HARQ-ACK) feedback information are provided. The User Equipment (UE) receives a Physical Downlink Control Channel (PDCCH) and a Physical Downlink Shared Channel (PDSCH) sent by a base station, determines a number of downlink subframes corresponding to the HARQ-ACK feedback information sent in the PUSCH of each CC in the current uplink subframe, the Uplink (UL) Downlink Assignment Index (UL DAI) obtained from the UL Grant of the PDCCH, a sum of the number of PDSCH subframes received from a HARQ-ACK bundling window and a number of PDCCHs indicating the downlink SPS releasing, and a size of the HARQ-ACK bundling window, and sends HARQ-ACK feedback information of each CC via the PUSCH in the current uplink subframe. A number of bits of the HARQ-ACK feedback information of each CC is determined according to the number of the downlink subframes.

公开(公告)号：US20170064738A1

公开(公告)日：2017-03-02

申请号：US15348912

申请日：2016-11-10

申请人： LG ELECTRONICS INC.

发明人： Young Dae LEE ,  Seung June YI ,  So Young LEE

IPC分类号： H04W74/04 ,  H04L12/801 ,  H04L12/815 ,  H04W28/06 ,  H04L1/16 ,  H04L1/18

CPC分类号： H04W74/04 ,  H04L1/1685 ,  H04L1/1809 ,  H04L1/1832 ,  H04L1/187 ,  H04L1/1877 ,  H04L1/188 ,  H04L47/225 ,  H04L47/34 ,  H04W28/04 ,  H04W28/06 ,  H04W28/065

摘要： A method of moving a receiving window in a wireless mobile communication system, wherein the AM RLC of the transmitting side sends information of the last discarded SDU regardless of continuity of the discarded SDUs. The AM RLC of the receiving side checks whether all SDUs from the start point of the receiving window up to the last discarded SDU are successfully received, delivers the SDUs that are successfully received to an upper layer, and discard only those SDUs that are not successfully received.

摘要翻译： 一种在无线移动通信系统中移动接收窗口的方法，其中发送侧的AM RLC发送最后丢弃的SDU的信息，而不管丢弃的SDU的连续性。 接收侧的AM RLC检查从接收窗口起始点到最后丢弃的SDU的所有SDU是否被成功接收，将成功接收的SDU传送到上层，并且仅丢弃那些未成功接收的SDU 收到了

公开(公告)号：US20170005757A1

公开(公告)日：2017-01-05

申请号：US15267452

申请日：2016-09-16

申请人： Huawei Technologies Co., Ltd.

发明人： Zhenxing Hu ,  Bingzhao Li ,  Wei Quan ,  Xiaodong Yang ,  Jian Zhang

IPC分类号： H04L1/18 ,  H04L29/08

CPC分类号： H04L1/1816 ,  H04L1/1628 ,  H04L1/1822 ,  H04L1/1829 ,  H04L1/1867 ,  H04L1/187 ,  H04L69/324

摘要： Embodiments of the present disclosure provide a data transmission and feedback processing method and apparatus. The apparatus of the present disclosure includes: a first receiving module, configured to receive a data packet sent by a second device; an identification module, configured to identify an exception by the first device according to scheduling information corresponding to the received data packet and an SN carried in the data packet; and a feedback module, configured to determine the exception by the first device and send a feedback message to the second device, where the feedback message carries an SN, so that the second device retransmits a data packet to the first device according to the SN. The embodiments of the present disclosure resolve a problem that present uniform HARQ retransmission times cannot meet QoS requirements of different services, so that HARQ retransmission requirements for QoS of different services are met.

摘要翻译： 本公开的实施例提供了一种数据传输和反馈处理方法和装置。 本公开的装置包括：第一接收模块，被配置为接收由第二设备发送的数据分组; 识别模块，被配置为根据与所接收的数据分组对应的调度信息和所述数据分组中携带的SN识别所述第一设备的异常; 以及反馈模块，被配置为确定所述第一设备的异常并向所述第二设备发送反馈消息，其中所述反馈消息携带SN，使得所述第二设备根据所述SN向所述第一设备重传数据分组。 本公开的实施例解决了存在统一的HARQ重传次数不能满足不同业务的QoS要求的问题，从而满足了不同业务的QoS的HARQ重传要求。

公开(公告)号：US09392543B2

公开(公告)日：2016-07-12

申请号：US13821345

申请日：2011-09-22

申请人： Satoshi Senga ,  Takayuki Nishikawa

发明人： Satoshi Senga ,  Takayuki Nishikawa

IPC分类号： G08C17/00 ,  H04W52/02 ,  H04W80/06 ,  H04L29/06 ,  H04L1/18

CPC分类号： H04W52/0212 ,  H04L1/1854 ,  H04L1/187 ,  H04L1/1877 ,  H04L1/188 ,  H04L1/1887 ,  H04L69/161 ,  H04W80/06 ,  Y02D30/30 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/162 ,  Y02D70/23

摘要： A transport header analyzing unit (133) analyzes, on the basis of the TCP header of transport data transmitted from a transmitter terminal (100) to a receiver terminal (200), whether the transport data is an acknowledgement response in a TCP communication. If the transport data is not an acknowledgement response, a synchronization pre-processing unit (134) determines, on the basis of the TCP header of the transport data, whether synchronization information, which is required to operate in a power saving mode together with an access point (300), is added to the IP header of the transport data. A synchronization information processing unit (235) adds, to the IP header of the transport data indicating an acknowledgement response to received data that is received from the transmitter terminal (100), the synchronization information that is required to operate in the power saving mode together with the access point (300).

摘要翻译： 传输报头分析单元（133）基于从发送终端（100）向接收方终端（200）发送的传输数据的TCP报头，分析传输数据是TCP通信中的确认响应。 如果传输数据不是确认响应，则同步预处理单元（134）基于传输数据的TCP报头来确定是否需要与省电模式一起操作的同步信息 接入点（300）被添加到传输数据的IP报头。 同步信息处理单元（235）将表示对从发送终端（100）接收到的接收数据的确认响应的传输数据的IP头添加到一起以省电模式操作所需的同步信息 与接入点（300）。