METHOD AND SYSTEM FOR PROVIDING BEAMFORMING FEEDBACK IN WIRELESS COMMUNICATION SYSTEMS
    31.
    发明申请
    METHOD AND SYSTEM FOR PROVIDING BEAMFORMING FEEDBACK IN WIRELESS COMMUNICATION SYSTEMS 审中-公开
    在无线通信系统中提供波束形成反馈的方法和系统

    公开(公告)号:WO2008002972A2

    公开(公告)日:2008-01-03

    申请号:PCT/US2007/072224

    申请日:2007-06-27

    Abstract: Techniques to support beamforming for stations in a wireless network are described. In one aspect, a station may support beamforming with implicit feedback or explicit feedback by having capabilities to transmit and receive sounding frames, respond to training request by sending a sounding frame, and respond to request for explicit feedback. In one design of explicit beamforming, the station may send a first frame with a request for explicit feedback and may also send a Null Data Packet (NDP) having at least one training field but no data field. The station may receive a second frame with the explicit feedback, which may be derived based on the NDP. The station may derive steering information (e.g., steering matrices) based on the explicit feedback and may then send a steered frame with beamforming based on the steering information. The station may also perform implicit beamforming using NDP for sounding.

    Abstract translation: 描述了用于支持无线网络中的站的波束成形的技术。 在一个方面,通过具有发送和接收探测帧的能力,通过发送探测帧来响应训练请求,并且响应于显式反馈的请求,站可以利用隐式反馈或显式反馈来支持波束成形。 在显式波束形成的一种设计中,站可以发送具有显式反馈请求的第一帧并且还可以发送具有至少一个训练字段但没有数据字段的空数据分组(NDP)。 该站可以接收具有显式反馈的第二帧,其可以基于NDP导出。 站可以基于显式反馈导出转向信息(例如,转向矩阵),并且然后可以基于转向信息发送具有波束成形的转向帧。 该电台还可以使用NDP来进行隐式波束形成以进行探测。

    OPEN-LOOP RATE CONTROL FOR A TDD COMMUNICATION SYSTEM
    33.
    发明申请
    OPEN-LOOP RATE CONTROL FOR A TDD COMMUNICATION SYSTEM 审中-公开
    用于TDD通信系统的开环速率控制

    公开(公告)号:WO2006055646A2

    公开(公告)日:2006-05-26

    申请号:PCT/US2005/041556

    申请日:2005-11-15

    Abstract: Techniques for performing open-loop rate control in a TDD communication system are described. The channel quality of a first link is estimated based on a transmission received via the first link. The channel quality of a second link is estimated based on the estimated channel quality of the first link and an asymmetric parameter. At least one rate for a data transmission via the second link is selected based on the estimated channel quality of the second link. The estimated channel quality for each link may be given by a set of SNR estimates for a set of transmission channels on that link. The asymmetric parameter may be determined based on (1) the capabilities (e.g., transmit power, receiver noise figure, and number of antennas) of the transmitting and receiving stations or (2) received SNRs for the first and second links.

    Abstract translation: 描述用于在TDD通信系统中执行开环速率控制的技术。 基于经由第一链路接收的传输来估计第一链路的信道质量。 基于第一链路的估计信道质量和非对称参数来估计第二链路的信道质量。 基于第二链路的估计信道质量来选择用于经由第二链路的数据传输的至少一个速率。 每个链路的估计信道质量可以由对该链路上的一组传输信道的一组SNR估计给出。 可以基于(1)发射和接收站的能力(例如,发射功率,接收机噪声系数和天线数)来确定非对称参数,或者(2)第一和第二链路的接收SNR。

    METHOD AND APPARATUS FOR SCHEDULING IN A WIRELESS NETWORK
    34.
    发明申请
    METHOD AND APPARATUS FOR SCHEDULING IN A WIRELESS NETWORK 审中-公开
    用于在无线网络中调度的方法和装置

    公开(公告)号:WO2005122506A1

    公开(公告)日:2005-12-22

    申请号:PCT/US2005/018834

    申请日:2005-05-27

    Abstract: Techniques for scheduling flows and links for transmission are described. Each link is an oriented source-destination pair and carries one or more flows. Each flow may be associated with throughput, delay, feedback (e.g., acknowledgments (ACKs)) and/or other requirements. A serving interval is determined for each flow based on the requirements for the flow. A serving interval is determined for each link based on the serving intervals for all of the flows sent on the link. Each link is scheduled for transmission at least once in each serving interval, if system resources are available, to ensure that the requirements for all flows sent on the link are met. The links are also scheduled in a manner to facilitate closed loop rate control. The links are further scheduled such that ACKs for one or more layers in a protocol stack are sent at sufficiently fast rates.

    Abstract translation: 描述用于调度流和用于传输的链路的技术。 每个链路是一个定向的源 - 目的地对,并携带一个或多个流。 每个流程可以与吞吐量,延迟,反馈(例如确认(ACK))和/或其他要求相关联。 根据流量的要求为每个流量确定服务间隔。 基于在链路上发送的所有流的服务间隔,为每个链路确定服务间隔。 如果系统资源可用,则每个链路被调度至少在每个服务间隔中传输一次,以确保满足在链路上发送的所有流的要求。 这些链路的安排也是为了方便闭环速率控制。 进一步调度链路,使得以足够快的速率发送协议栈中的一个或多个层的ACK。

    USE OF IDLE FRAMES FOR EARLY TRANSMISSION OF NEGATIVE ACKNOWLEDGEMENT OF FRAME RECEIPT
    35.
    发明申请
    USE OF IDLE FRAMES FOR EARLY TRANSMISSION OF NEGATIVE ACKNOWLEDGEMENT OF FRAME RECEIPT 审中-公开
    空闲框架的使用,用于早期传输帧识别的负面确认

    公开(公告)号:WO2004047356A2

    公开(公告)日:2004-06-03

    申请号:PCT/US2003/036832

    申请日:2003-11-17

    CPC classification number: H04L1/1642 H04L1/1848

    Abstract: A group of data frames from a plurality of communication channels is received. At least one idle frame including a sequence number of a last frame in the group of data frames is then received. A delay period of time is allowed to elapse after receiving the idle frame before sending a negative acknowledgement message, if at least one data frame is missing.

    Abstract translation: 接收来自多个通信信道的一组数据帧。 然后接收包括数据帧组中的最后一帧的序列号的至少一个空闲帧。 如果至少有一个数据帧丢失,则在发送否定确认消息之前,在接收到空闲帧之后允许延迟时间段过去。

    TECHNIQUES FOR REDUCING WAKEUP LATENCY
    37.
    发明申请

    公开(公告)号:WO2023048889A1

    公开(公告)日:2023-03-30

    申请号:PCT/US2022/041542

    申请日:2022-08-25

    Abstract: Methods, systems, and devices for wireless communication are described. A data layer at a user equipment (UE) may provide information associated with an uplink message to a modem power manager to determine whether to keep resources which are brought up by the scheduler or to power them off for transmitting the uplink message. For example, the data layer may indicate a radio access technology, a subscriber identifier, and a bearer type associated with the uplink message, which may enable the modem power manager to identify which radios to wake up (e.g., or avoid putting to sleep). Utilizing the information may enable the modem power manager to determine whether the wakeup is related to uplink data, acquire information to support the wakeup with resources indicated by the information, and avoid putting resources to sleep if the scheduled and the unscheduled wakeup resource requirements match.

    DESCRIPTOR AGGREGATION ACROSS MULTIPLE TRANSMISSION TIME INTERVALS

    公开(公告)号:WO2022256788A1

    公开(公告)日:2022-12-08

    申请号:PCT/US2022/072622

    申请日:2022-05-27

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device may receive protocol data units (PDUs) in multiple TTIs (e.g., slots). The wireless communication device may generate, for each TTI of the multiple TTIs, a descriptor that identifies serial numbers (SNs) of PDUs that are received in the TTI. The wireless communication device may aggregate the descriptors for the multiple TTIs into an aggregated descriptor that identifies the SNs of the PDUs across the multiple TTIs. The wireless communication device may process the PDUs received in the multiple TTIs based at least in part on the aggregated descriptor. Numerous other aspects are described.

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