Method and apparatus for organizing and scheduling multimedia data transfers over a wireless channel
    1.
    发明授权
    Method and apparatus for organizing and scheduling multimedia data transfers over a wireless channel 有权
    通过无线信道组织和调度多媒体数据传输的方法和装置

    公开(公告)号:US07002985B2

    公开(公告)日:2006-02-21

    申请号:US09760985

    申请日:2001-01-16

    IPC分类号: H04L12/43

    CPC分类号: H04W72/1242

    摘要: A radio frequency communications system (100) includes wireless terminals (102) and base sites (104). The wireless terminals communicate with the base sites over a radio frequency channel (106). The base sites are interconnected to each other and other network elements via a packet network. The communication system has a radio frequency channel (400) with time slots (406, 408) for transmission of both delay-sensitive data, such as streaming audio and video, and non-delay-sensitive data. A method and apparatus are provided for determining whether a time slot in the radio frequency channel is to be allocated to delay-sensitive data or non-delay-sensitive data (704, 706, 708). Each packet of data transmitted over the wireless channel has a type of service field (900). The type of service field has a precedence or priority value (902) and a service type (904). The priority values are used to determine which packet should be transmitted across the radio frequency channel next and the service type determines the transmission protocol.

    摘要翻译: 射频通信系统(100)包括无线终端(102)和基站(104)。 无线终端通过射频信道(106)与基站通信。 基站经由分组网络彼此互连和其它网络元件。 通信系统具有用于传输诸如流式音频和视频之类的延迟敏感数据以及非延迟敏感数据的具有时隙(406,408)的射频信道(400)。 提供一种方法和装置,用于确定射频信道中的时隙是否被分配给延迟敏感数据或非延迟敏感数据(704,706,708)。 通过无线信道发送的每个数据分组具有一种服务字段(900)。 服务类型具有优先级或优先权值(902)和服务类型(904)。 优先级值用于确定哪个分组应在下一个射频信道上传输,业务类型决定传输协议。

    Methods of addressing and signaling a plurality of subscriber units in a single slot
    3.
    发明授权
    Methods of addressing and signaling a plurality of subscriber units in a single slot 有权
    在单个时隙中寻址和发信号通知多个用户单元的方法

    公开(公告)号:US06928065B2

    公开(公告)日:2005-08-09

    申请号:US10166838

    申请日:2002-06-11

    CPC分类号: H04B7/2656

    摘要: In a system having at least a first slot (104) and a first header (106), at least one field is provided in the first header (106). The first slot (104) is configured into at least a first segment and a second segment or into at least a signaling communications path comprising a plurality of messages, based on a value associated with at least a portion of the at last one field associated with the first header. The first segment/message is address to a first subscriber unit and the second segment/message is addressed to a second subscriber unit.

    摘要翻译: 在具有至少第一时隙(104)和第一报头(106)的系统中,在第一报头(106)中提供至少一个字段。 基于与最后一个字段的至少一部分相关联的值,第一时隙(104)被配置为至少第一分段和第二分段或至少包括多个消息的信令通信路径 第一个标题。 第一段/消息是第一用户单元的地址,第二段/消息被寻址到第二用户单元。

    Method for allocating channel resources in a distributed control channel system
    4.
    发明授权
    Method for allocating channel resources in a distributed control channel system 有权
    在分布式控制信道系统中分配信道资源的方法

    公开(公告)号:US06842432B2

    公开(公告)日:2005-01-11

    申请号:US10315902

    申请日:2002-12-10

    摘要: An outbound message (200) identifies a slot type associated with each timeslot in a scheduling period. In one embodiment, the outbound message further identifies at least an address of a first subscriber group assigned to transmit in a first timeslot (206) if the slot type of the first timeslot is of a first type and an address of a second subscriber group assigned to transmit in a second timeslot (208) if the slot type of the second timeslot is of a second type, wherein the first type and the second type could be the same or different. In a second embodiment, the outbound message further identifies at least a group address associated with a plurality of subscriber units assigned to transmit in a first timeslot if the slot type of the first timeslot is of a first type. In yet a third embodiment, the outbound message further identifies an address of a first subscriber group assigned to transmit in a first timeslot if the slot type of the first timeslot is of the first type, and a second timeslot (210) of a second type.

    摘要翻译: 出站消息(200)在调度周期中识别与每个时隙相关联的时隙类型。 在一个实施例中,如果第一时隙的时隙类型是第一类型,并且分配了第二用户组的地址,则出站消息进一步标识分配给在第一时隙(206)中发送的第一用户组的至少一个地址 如果第二时隙的时隙类型是第二类型,则在第二时隙(208)中发送,其中第一类型和第二类型可以相同或不同。 在第二实施例中,如果第一时隙的时隙类型是第一类型,则所述出站消息进一步标识与分配给在第一时隙中发送的多个订户单元相关联的组地址。 在第三实施例中,如果第一时隙的时隙类型是第一类型,则出站消息进一步标识分配给在第一时隙中发送的第一用户组的地址,以及第二类型的第二时隙(210) 。

    Methods for sequencing datagram transmissions
    6.
    发明授权
    Methods for sequencing datagram transmissions 有权
    数据报传输排序方法

    公开(公告)号:US07126912B2

    公开(公告)日:2006-10-24

    申请号:US10158038

    申请日:2002-05-30

    IPC分类号: H04J3/02 H04L12/54 G06F13/00

    摘要: Methods for sequencing datagram transmissions are disclosed, including, receiving an unqueued segment to be enqueued in a queue. The queue comprises at least one segment. Determining a priority level and a number of attempted transmissions for the unqueued segment (100). If the unqueued segment is enqueued in front of a segment belonging to a datagram in the queue, and at least one segment belonging to the datagram has been transmitted before all the segments belonging to the datagram have been transmitted, at least one of the following functions is performed: discarding any remaining segments belonging to the datagram in the queue, transmitting any remaining segments belonging to the datagram in the queue, and re-enqueuing segments belonging to the datagram at the same location in the queue as the partially transmitted datagram, but with a different identifier.

    摘要翻译: 公开了对数据报传输进行排序的方法,包括接收队列中排队的无队列段。 队列包括至少一个段。 确定未排队段(100)的优先级和尝试传输次数。 如果未队列段在属于队列中的数据报的段的前面入队,并且属于数据报的至少一个段已经在所有属于该数据报的段已被发送之前被发送,则至少有以下一个功能 执行:丢弃属于队列中的数据报的任何剩余段,将属于该数据报的任何剩余段传送到队列中,并且将属于数据报的段重新排队在队列中与部分传输的数据报相同的位置,但是 具有不同的标识符。

    Relative adjustment value for inbound time-slotted transmissions
    7.
    发明授权
    Relative adjustment value for inbound time-slotted transmissions 有权
    入站时隙传输的相对调整值

    公开(公告)号:US07161921B2

    公开(公告)日:2007-01-09

    申请号:US10407349

    申请日:2003-04-04

    IPC分类号: H04J3/06

    摘要: Disclosed are methods for adjustment values. In one embodiment, a cumulative adjustment value is provided in memory, an inbound signal is transmitted to a base station during a random access opportunity, and a relative adjustment value is received from the base station. Then, the relative adjustment value is summed with the cumulative adjustment value to create a new cumulative adjustment value which is stored in the memory. Finally, a subsequent inbound signal is transmitted using the new cumulative adjustment value during a reserved access opportunity.

    摘要翻译: 披露的是调整值的方法。 在一个实施例中,在存储器中提供累积调整值,在随机访问机会期间将入站信号发送到基站,并且从基站接收相对调整值。 然后,相对调整值与累积调整值相加以创建存储在存储器中的新的累积调整值。 最后,在保留访问机会期间,使用新的累积调整值来发送随后的入站信号。

    FREQUENCY DEVIATION ERROR COMPENSATION IN AN MLSE RECEIVER
    8.
    发明申请
    FREQUENCY DEVIATION ERROR COMPENSATION IN AN MLSE RECEIVER 有权
    频率接收器中的频率偏差误差补偿

    公开(公告)号:US20110267938A1

    公开(公告)日:2011-11-03

    申请号:US12768909

    申请日:2010-04-28

    IPC分类号: G06F11/07

    摘要: A method is described to compensate for deviation error in a H-CPM sync or data burst received by a MLSE receiver in a communication device. The deviation error is estimated and matched filter coefficients are adjusted using the estimated deviation error. Metrics are determined for the current state using the adjusted matched filter coefficients. The state having the minimum metric is determined to be the most likely current state. The most likely previous state is similarly determined The burst is reconstructed backward from the last state to the initial state. The metric is the squared magnitude of the difference between the channel estimate multiplied by the matched filter coefficient associated with one of the possible states and the current state. Timing and frequency errors are compensated for before estimation and correction of the deviation error. Pilot or sync symbols are used in estimating the deviation error.

    摘要翻译: 描述了一种方法来补偿由通信设备中的MLSE接收器接收的H-CPM同步或数据脉冲串中的偏差误差。 估计偏差误差,并使用估计的偏差误差调整匹配滤波器系数。 使用调整的匹配滤波器系数确定当前状态的度量。 具有最小度量的状态被确定为最可能的当前状态。 类似地确定最可能的先前状态突发从最后状态向后重建到初始状态。 该度量是信道估计乘以与可能状态之一和当前状态相关联的匹配滤波器系数之间的差的平方幅度。 在估计和纠正偏差误差之前补偿定时和频率误差。 导频或同步符号用于估计偏差误差。

    Method and system for synchronization of communication between a mobile subscriber and a base station
    9.
    发明授权
    Method and system for synchronization of communication between a mobile subscriber and a base station 有权
    用于移动用户和基站之间的通信同步的方法和系统

    公开(公告)号:US07096017B2

    公开(公告)日:2006-08-22

    申请号:US10820919

    申请日:2004-04-08

    IPC分类号: H04Q7/20

    CPC分类号: H04W48/16 H04W72/04

    摘要: A method and system for synchronizing scan opportunities in a mobile communications system. Time slots are sent between a mobile subscriber and an associated base station wherein the mobile subscriber corresponds to a scan group. The number of time slots sent between the mobile subscriber and the associated base station is counted. Based upon the count, the scan group of the mobile subscriber, a scan rate, and a scan opportunity divisor, a scan opportunity is determined. If it is a scan opportunity, a scan is performed of a neighboring base station.

    摘要翻译: 一种用于在移动通信系统中同步扫描机会的方法和系统。 在移动用户和相关联的基站之间发送时隙,其中移动用户对应于扫描组。 在移动用户和相关联的基站之间发送的时隙的数量被计数。 基于计数,移动用户的扫描组,扫描速率和扫描机会除数,确定扫描机会。 如果是扫描机会,则对相邻基站进行扫描。

    Frequency deviation error compensation in an MLSE receiver
    10.
    发明授权
    Frequency deviation error compensation in an MLSE receiver 有权
    MLSE接收机中的频偏误差补偿

    公开(公告)号:US08355472B2

    公开(公告)日:2013-01-15

    申请号:US12768909

    申请日:2010-04-28

    IPC分类号: H03D1/04

    摘要: A method is described to compensate for deviation error in a H-CPM sync or data burst received by a MLSE receiver in a communication device. The deviation error is estimated and matched filter coefficients are adjusted using the estimated deviation error. Metrics are determined for the current state using the adjusted matched filter coefficients. The state having the minimum metric is determined to be the most likely current state. The most likely previous state is similarly determined. The burst is reconstructed backward from the last state to the initial state. The metric is the squared magnitude of the difference between the channel estimate multiplied by the matched filter coefficient associated with one of the possible states and the current state. Timing and frequency errors are compensated for before estimation and correction of the deviation error. Pilot or sync symbols are used in estimating the deviation error.

    摘要翻译: 描述了一种方法来补偿由通信设备中的MLSE接收器接收的H-CPM同步或数据脉冲串中的偏差误差。 估计偏差误差,并使用估计的偏差误差调整匹配滤波器系数。 使用调整的匹配滤波器系数确定当前状态的度量。 具有最小度量的状态被确定为最可能的当前状态。 最有可能的状态也是类似的。 突发从最后状态向后重建到初始状态。 该度量是信道估计乘以与可能状态之一相关联的匹配滤波器系数与当前状态之间的差的平方幅度。 在估计和纠正偏差误差之前补偿定时和频率误差。 导频或同步符号用于估计偏差误差。