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    • 51. 发明申请
    • METHOD AND APPARATUS FOR PRIORITIZING STATUS MESSAGES IN A WIRELESS COMMUNICATION SYSTEM
    • 用于在无线通信系统中优化状态消息的方法和装置
    • US20090318152A1
    • 2009-12-24
    • US12484969
    • 2009-06-15
    • Shailesh Maheshwari
    • Shailesh Maheshwari
    • H04W36/00
    • H04L1/1822H04L1/1835H04L1/1854H04L2001/0092H04W36/02
    • Systems and methodologies are described that facilitate scheduling for transmissions of status messages, such as Packet Data Convergence Protocol (PDCP) status messages or Radio Link Control (RLC) acknowledgement messages, in a wireless communication system. As described herein, at time periods at which transmission of status messages is desired, respective status signaling associated with a set of radio bearers, logical channels, or the like can be configured to be transmitted prior to conducting transmission(s) of data. By doing so, a receiving entity can obtain the status signaling at substantially the earliest possible opportunity, allowing the receiving entity to avoid unnecessary bandwidth and/or memory expenditure associated with re-transmissions of information. As further described herein, status information can be prioritized by the use of separate status bearers, respective indicators provided within information elements queued on respective radio bearers, a maintained list of respective radio bearers containing status information, and other similar mechanisms.
    • 描述了在无线通信系统中有助于调度诸如分组数据融合协议(PDCP)状态消息或无线电链路控制(RLC)确认消息的状态消息的传输的系统和方法。 如这里所描述的,在期望发送状态消息的时间段,与一组无线电承载,逻辑信道等相关联的相应状态信令可以被配置为在进行数据传输之前被发送。 通过这样做,接收实体可以在基本上尽可能早的机会获得状态信令,从而允许接收实体避免与重新发送信息相关的不必要的带宽和/或存储器支出。 如本文进一步描述的,可以通过使用单独的状态承载,在相应无线电承载上排队的信息元素内提供的相应指示符,包含状态信息的各个无线承载的维护列表以及其他类似的机制来优先化状态信息。
    • 52. 发明申请
    • METHOD AND APPARATUS FOR EFFICIENT HANDOVER IN LTE
    • LTE中有效切换的方法和设备
    • US20090286541A1
    • 2009-11-19
    • US12433802
    • 2009-04-30
    • Shailesh MaheshwariSai Yiu Duncan HoPeter A. Barany
    • Shailesh MaheshwariSai Yiu Duncan HoPeter A. Barany
    • H04W36/00
    • H04W76/10H04L1/1809H04L1/1848H04W36/08H04W74/08
    • An efficient use of downlink (DL) air-interface bandwidth during handoff of user equipment from a source cell to a target is provided. In conjunction with a handoff message to ensure receipt, expedited status exchanges are provided so that initial communications do not require a subsequent retransmission of duplicate data. A method for transmitting a dedicated Random Access Channel (RACH) preamble and cell information, receiving a RACH from the user equipment to start communication, and transmitting a handover message and a radio link control (RLC) status message or an UL grant in response to receiving the RACH is provided. Also, a method for receiving a handover message and target cell information from a source cell to start handover negotiations, initiating communication with target cell using the target cell information, receiving a handover message and (RLC) status message, and using the received information to approximate status reporting is provided.
    • 提供了在将用户设备从源小区切换到目标时,有效地使用下行链路(DL)空中接口带宽。 结合切换消息以确保接收,提供加速状态交换,使得初始通信不需要后续的重复数据重传。 一种用于发送专用随机接入信道(RACH)前导码和小区信息的方法,从用户设备接收RACH以开始通信,以及响应于发送切换消息和无线电链路控制(RLC)状态消息或UL授权 提供接收RACH。 另外,一种用于从源小区接收切换消息和目标小区信息以开始切换协商的方法,使用目标小区信息发起与目标小区的通信,接收切换消息和(RLC)状态消息,并且使用所接收的信息 提供了近似状态报告。
    • 57. 发明授权
    • Timer poll retransmission expiry in a wireless communication system
    • 定时器轮询重传在无线通信系统中过期
    • US08295159B2
    • 2012-10-23
    • US12687082
    • 2010-01-13
    • Shailesh MaheshwariSai Yiu Duncan Ho
    • Shailesh MaheshwariSai Yiu Duncan Ho
    • G06F11/00H04J3/16H04L12/403H04L1/00
    • H04L1/1685H04L1/1809H04L1/1883
    • Providing for improved acknowledgment and retransmission protocols for wireless communication is described herein. By way of example, the acknowledgment and retransmission protocols can comprise including a poll element, or reply command, within a data unit that is part of a wireless transmission. A timer is set following sending the wireless transmission, and if a reply is not received within expiration of the timer, retransmission is triggered. According to specific aspects, retransmission comprises resending the data unit that includes the poll element or reply command. In this manner, redundant retransmission can be mitigated, whether because a receiver fails to successfully receive one or more subsets of the wireless transmission, or because the transmitter fails to obtain a reply to the wireless transmission.
    • 本文描述了提供用于无线通信的改进的确认和重传协议。 作为示例,确认和重传协议可以包括在作为无线传输的一部分的数据单元内包括轮询元素或应答命令。 在发送无线传输之后设置定时器,并且如果在定时器期满期间未接收到应答,则触发重传。 根据具体方面,重传包括重新发送包括轮询元素或回复命令的数据单元。 以这种方式,可以减轻冗余重传,无论是因为接收机不能成功接收无线传输的一个或多个子集,或者因为发射机未能获得对无线传输的答复。