Efficient frame retransmission in a wireless communication environment
    1.
    发明授权
    Efficient frame retransmission in a wireless communication environment 有权
    在无线通信环境中高效的帧重传

    公开(公告)号:US07436834B1

    公开(公告)日:2008-10-14

    申请号:US11552797

    申请日:2006-10-25

    IPC分类号: H04L12/26

    摘要: A multiplexer function maintains a transmission table of all link control frames sent to a physical layer for transmission to a receiver. The transmission table includes a list of frames from various link control entities in the order in which they were multiplexed together to form a stream of frames. At the receiver, when a frame is detected that is in error, the physical layer sends an indication to its associated demultiplexer function, which sets a timer. When the timer expires, the demultiplexer function issues a message, such as a negative acknowledgement message, directly to the sender via the physical layer. The message includes information about the link control frames preceding and following the errant frame. The identified frames may be associated with different link control entities, and are preferably provided in the order in which they were received. The multiplexer function compares the identified frames in the message to the list of frames in the transmission table to identify the errant frame or frames and operates to effect retransmission of the errant frame.

    摘要翻译: 复用器功能维护发送到物理层的所有链路控制帧的传输表,以传输到接收机。 传输表包括来自各种链路控制实体的帧的列表,其顺序被多路复用在一起以形成帧流。 在接收机处,当检测到错误的帧时,物理层向其相关联的解复用器功能发送指示,该功能设置定时器。 当定时器到期时,解复用器功能通过物理层直接向发送者发出消息,例如否定确认消息。 该消息包括关于在错误帧之前和之后的链路控制帧的信息。 所识别的帧可以与不同的链路控制实体相关联,并且优选地以它们被接收的顺序提供。 复用器功能将消息中识别的帧与发送表中的帧列表进行比较,以识别出错误的帧或帧,并且操作以实现错误帧的重传。

    Efficient frame retransmission in a wireless communication environment
    2.
    发明授权
    Efficient frame retransmission in a wireless communication environment 有权
    在无线通信环境中高效的帧重传

    公开(公告)号:US07145889B1

    公开(公告)日:2006-12-05

    申请号:US10108577

    申请日:2002-03-28

    IPC分类号: H04Q7/20

    摘要: The present invention relates to a link control automatic repeat request (ARQ) operation in a wireless communication environment. When a terminal sends an original request for communication resources, the request includes not only payload size, but preferably quality of service parameters associated with the data to be transmitted. During uplink communications, the base station performs the link control based ARQ for lost or corrupt packets. When lost or corrupt packets are identified, a link control entity at the base station determines the appropriate retransmission parameters and contacts the uplink scheduler, if necessary, to obtain the corresponding communication resources for retransmission. The additional communication resources for retransmission are provided in a message, such as a negative acknowledgement message, which is sent to the mobile terminal to trigger retransmission of the lost or corrupted data.

    摘要翻译: 本发明涉及无线通信环境中的链路控制自动重传请求(ARQ)操作。 当终端发送对通信资源的原始请求时,请求不仅包括有效负载大小,而且包括与要发送的数据相关联的服务质量的参数。 在上行链路通信期间,基站对于丢失或损坏的分组执行基于链路控制的ARQ。 当识别出丢失或损坏的分组时,如果需要,基站处的链路控制实体确定适当的重传参数并与上行链路调度器联系以获得相应的用于重传的通信资源。 用于重传的附加通信资源被提供在消息中,例如否定确认消息,其被发送到移动终端以触发丢失或损坏的数据的重传。

    Orthogonal signaling for CDMA
    4.
    发明授权
    Orthogonal signaling for CDMA 有权
    CDMA的正交信令

    公开(公告)号:US09143255B2

    公开(公告)日:2015-09-22

    申请号:US10273965

    申请日:2002-10-18

    IPC分类号: H04J11/00 H04J13/00

    CPC分类号: H04J11/0023 H04J13/004

    摘要: The present invention uses a portion of an orthogonal spreading code space in a CDMA spectrum for uplink from a user element to a base station. By assigning the user elements one or more codes, which are orthogonal to those used to spread data, to use for uplink , the present invention significantly reduces interference between channels, and between the data channels and the channels, while supporting additional capacity. The codes may be individually assigned to user elements or assigned to groups of user elements. Further, different length codes may be assigned to the user elements to support different rates depending on Quality of Service (QoS) requirements.

    摘要翻译: 本发明使用CDMA频谱中的从用户单元到基站的上行链路的正交扩展码空间的一部分。 通过将与用于扩展数据的那些正交的一个或多个代码分配给用户元素以用于上行链路,本发明在支持附加容量的同时显着减少了信道之间以及数据信道和信道之间的干扰。 代码可以被单独分配给用户元素或分配给用户组的组。 此外,可以将不同的长度代码分配给用户元件以根据服务质量(QoS)要求来支持不同的速率。

    Scheduling based on channel change indicia
    5.
    发明授权
    Scheduling based on channel change indicia 有权
    基于频道变化标记的调度

    公开(公告)号:US07463616B1

    公开(公告)日:2008-12-09

    申请号:US10108624

    申请日:2002-03-28

    IPC分类号: H04B7/212

    CPC分类号: H04W72/1231

    摘要: The present invention keeps track of channel change indicia associated with wireless communications with mobile terminals, and bases the scheduling of data in time slots of a scheduling period on the channel change indicia. The channel change indicia may be derived from any information that bears on the rate at which channel conditions are likely to change, such as the velocity the mobile terminals are traveling or actual channel condition measurements. Preferably, mobile terminals associated with intermediate values for the channel change indicia are given priority, and thus, scheduled for transmission before those with lower and higher values. The invention is applicable to uplink and downlink communications, and is particularly beneficial when implemented in uplink and downlink schedulers in a base station.

    摘要翻译: 本发明跟踪与移动终端的无线通信相关联的信道变化标记,并且将调度周期的时隙中的数据调度作为信道变化标记。 信道改变标记可以从信道条件可能改变的速率的任何信息,诸如移动终端正在行进的速度或实际的信道条件测量得出。 优选地,与信道改变标记的中间值相关联的移动终端被给予优先级,因此被调度为在具有较低和较高值的那些之前发送。 本发明适用于上行链路和下行链路通信,并且当在基站中的上行链路和下行链路调度器中实现时是特别有益的。

    Physical layer assisted retransmission
    6.
    发明授权
    Physical layer assisted retransmission 有权
    物理层辅助重传

    公开(公告)号:US07388852B2

    公开(公告)日:2008-06-17

    申请号:US10020834

    申请日:2001-12-13

    IPC分类号: H04Q7/20 H04B7/216 H04L12/56

    摘要: The present invention provides a fast and efficient retransmission technique, which allows a link control layer to request retransmission of frames upon receiving information from an underlying physical layer that an unsuccessful attempt to transmit data was detected. In general, a failed attempt to transmit a frame is detected at a physical layer of a receiver. In response, the physical layer of the receiver sends a message to a link control layer of the receiver to indicate the failed attempt to transmit a frame was detected. Upon receipt of the message, the link control layer sends a retransmission message to a corresponding link control layer of a sender. The retransmission message is configured to cause the sender to retransmit the unrecoverable data associated with the corrupted frame.

    摘要翻译: 本发明提供了一种快速有效的重传技术,其允许链路控制层在从底层物理层接收到检测到发送数据的尝试不成功的信息时请求重发帧。 通常,在接收机的物理层处检测到发送帧的失败尝试。 作为响应,接收机的物理层向接收机的链路控制层发送消息以指示检测到发送帧的失败尝试。 在接收到消息时,链路控制层向发送方的相应链路控制层发送重传消息。 重传消息被配置为使得发送者重新发送与被破坏的帧相关联的不可恢复的数据。

    Method and system for handling of a transport block size change in an adaptive retransmit order
    7.
    发明授权
    Method and system for handling of a transport block size change in an adaptive retransmit order 有权
    用于处理自适应重传顺序中传输块大小变化的方法和系统

    公开(公告)号:US09178664B2

    公开(公告)日:2015-11-03

    申请号:US13490962

    申请日:2012-06-07

    IPC分类号: H04L1/18 H04L1/00

    摘要: A method and apparatus for handling a downlink control information indication for retransmission, the method receiving a downlink control information indication for retransmission of a hybrid automatic repeat request (HARQ) process; and if a transport block size in the downlink control information has changed compared with a transport block size associated with the HARQ process or a previous uplink grant for the HARQ process: handling the downlink control information indication for retransmission.

    摘要翻译: 一种用于处理用于重传的下行链路控制信息指示的方法和装置,所述方法接收用于重传混合自动重传请求(HARQ)过程的下行链路控制信息指示; 并且如果下行链路控制信息中的传输块大小与与HARQ进程相关联的传输块大小或HARQ进程的先前上行链路许可相比已经改变:处理下行链路控制信息指示以进行重传。

    Handling Physical Uplink Shared Channel Transmissions
    9.
    发明申请
    Handling Physical Uplink Shared Channel Transmissions 失效
    处理物理上行链路共享信道传输

    公开(公告)号:US20130083737A1

    公开(公告)日:2013-04-04

    申请号:US13250719

    申请日:2011-09-30

    IPC分类号: H04W72/08 H04W72/04

    CPC分类号: H04L1/1887

    摘要: Systems, apparatus and methods can be implemented for handling physical uplink shared channel (PUSCH) transmissions. A user equipment (UE) can decode, on a physical hybrid automatic repeat request (HARQ) indicator channel (PHICH), a negative acknowledgement (NACK) associated with an HARQ process. The UE can also receive, from a base station, an uplink grant without an associated transport block. The decoded NACK and the received uplink grant can trigger a respective transmission during a PUSCH transmission opportunity. The UE can then perform, during the PUSCH transmission opportunity, one of transmission of a PUSCH transmission associated with the HARQ process, transmission of control information based on the received uplink grant, or disregarding the decoded NACK and the received uplink grant.

    摘要翻译: 可以实现系统,装置和方法来处理物理上行链路共享信道(PUSCH)传输。 用户设备(UE)可以在物理混合自动重传请求(HARQ)指示符信道(PHICH)上解码与HARQ过程相关联的否定确认(NACK)。 UE还可以从基站接收没有相关联的传输块的上行链路许可。 解码的NACK和接收到的上行链路许可可以在PUSCH传输机会期间触发相应的传输。 然后,UE可以在PUSCH传输机会期间执行与HARQ进程相关联的PUSCH传输的传输中的一个,基于接收的上行链路许可传输控制信息,或者忽略已解码的NACK和接收到的上行链路许可。

    System and method for sharing a control channel for carrier aggregation
    10.
    发明授权
    System and method for sharing a control channel for carrier aggregation 有权
    用于共享用于载波聚合的控制信道的系统和方法

    公开(公告)号:US08359039B2

    公开(公告)日:2013-01-22

    申请号:US12816120

    申请日:2010-06-15

    IPC分类号: H04W72/00

    摘要: A method for processing a control channel at a user agent (UA) to identify at least one of an uplink and a downlink resource allocated by a resource grant within a multi-carrier communication system wherein resource grants are specified by control channel element (CCE) subset candidates, the method comprising the steps of identifying the number of carriers used to communicate with the access device, based on the number of carriers used to communicate with the access device, identifying a number of CCE subset candidates to decode and decoding up to the identified number of CCE subset candidates in an attempt to identify the resource grant.

    摘要翻译: 一种用于在用户代理(UA)处理控制信道的方法,用于识别由多载波通信系统内的资源授权分配的上行链路资源和下行链路资源中的至少一个,其中资源许可由控制信道单元(CCE)指定, 子集候选,所述方法包括以下步骤:基于用于与所述接入设备进行通信的载波的数量,识别用于与所述接入设备通信的载波的数量的数量;识别多个CCE子集候选来解码和解码 确定了CCE子集候选人的数量,以试图识别资源授权。