Preamble miss detection in transmission of multi-slot packets
    71.
    发明申请
    Preamble miss detection in transmission of multi-slot packets 失效
    在多时隙分组传输中的前导码错误检测

    公开(公告)号:US20060109810A1

    公开(公告)日:2006-05-25

    申请号:US10997271

    申请日:2004-11-24

    IPC分类号: H04Q7/00

    CPC分类号: H04L1/1819

    摘要: A communication system (100) transmits data packets from a sender (120A) to a receiver (130A) using hybrid automatic repeat request processes. The sender redundantly encodes each packet, divides the packet into subpackets, and sends the subpackets to the receiver in a time-interlaced manner. When the receiver returns a positive acknowledgement of a subpacket using an acknowledgement channel, the sender terminates transmission of the subpackets. The sender interprets the signals on the acknowledgement channel using a metric resulting from correlation of the signals with positive and negative acknowledgement symbols. The sender interprets low correlation of the acknowledgement channel signal with both positive and negative acknowledgement symbols as a preamble miss, and terminates transmission of the subpackets. After termination, the packet may be rescheduled for transmission. Early termination of packet transmission after a preamble miss improves bandwidth utilization and decreases latency of the packet with the missed preamble.

    摘要翻译: 通信系统(100)使用混合自动重复请求过程将数据分组从发送器(120A)发送到接收机(130A)。 发送方对每个数据包进行冗余编码,将数据包划分为子数据包,并以时间间隔方式将子数据包发送给接收方。 当接收方使用确认信道返回子包的肯定确认时,发送方终止子数据包的传输。 发送者使用由信号与正和负确认符号的相关产生的度量来确认确认信道上的信号。 发送方解释确认信道信号与正和负确认符号的低相关性作为前导码缺失,并终止子分组的传输。 终止之后,可以重新安排分组以进行传输。 前导码丢失后的数据包传输的提前终止提高了带宽利用率并降低了丢失前导码的数据包的等待时间。

    Acknowledgment channel for wireless communications
    74.
    发明授权
    Acknowledgment channel for wireless communications 有权
    无线通信确认通道

    公开(公告)号:US09264183B2

    公开(公告)日:2016-02-16

    申请号:US12446709

    申请日:2007-10-24

    摘要: Systems and methodologies are described that facilitate establishing a forward link acknowledgement channel and transmitting acknowledgment signals thereupon. In particular, the signals can be spread within contiguous channel clusters in a tile where the signals in the cluster are mutually orthogonal to one another. Additionally, the signals can be multiplexed over a plurality of frequency regions. In this regard, the acknowledgment signals are diverse with respect to frequency and interference; moreover, the signals can be received and decoded even where one of the channels experiences high interference. Furthermore, the acknowledgement signals can also communicate a channel deassignment value, which allows devices to utilize persistent channels in communicating data to one another.

    摘要翻译: 描述了有助于建立前向链路确认信道并在其上发送确认信号的系统和方法。 特别地,信号可以在其中簇中的信号彼此相互正交的瓦片中的相邻信道簇内扩展。 另外,可以在多个频率区域上复用信号。 在这方面,确认信号在频率和干扰方面是不同的; 此外,即使在一个信道经受高干扰的情况下也可以接收和解码信号。 此外,确认信号还可以传送信道去分配值,这允许设备利用持久信道将数据彼此通信。

    Preamble design for a wireless signal
    75.
    发明授权
    Preamble design for a wireless signal 有权
    无线信号的前缀设计

    公开(公告)号:US09215669B2

    公开(公告)日:2015-12-15

    申请号:US12260826

    申请日:2008-10-29

    摘要: Providing for base station (BS) acquisition in semi-planned or unplanned wireless access networks is described herein. By way of example, a signal preamble can be dynamically allocated to wireless signal resources, such that the preamble is scheduled to different resource(s) across different cycles of the signal. Dynamic allocation can be pseudo-random, based on collision feedback, or determined by a suitable algorithm to mitigate collisions from a dominant interferer. In addition, dynamic scheduling can be particular to a type of BS to significantly reduce collisions from BSs of disparate types. In at least one aspect, a preamble resource can be sub-divided into multiple frequency sub-carrier tiles. Control channel information can be transmitted on each tile of a group of such tiles, further mitigating effects of a dominant interferer on a subset of the tile group.

    摘要翻译: 本文描述了在半计划或非计划无线接入网络中提供基站(BS)采集。 作为示例,可以将信号前同步码动态地分配给无线信号资源,使得前导码被调度到跨越信号的不同周期的不同资源。 动态分配可以是伪随机的,基于碰撞反馈,或者由适当的算法确定,以减轻来自主要干扰源的冲突。 此外,动态调度对于一种类型的BS可以是特别的,以显着减少来自不同类型的BS的冲突。 在至少一个方面,前导码资源可以被细分为多个频率子载波瓦片。 可以在一组这样的瓦片的每个瓦片上发送控制信道信息,进一步减轻显着干扰源对瓦片组的子集的影响。

    Method and apparatus for facilitating reliable transmission of a control region size and detection of cross-carrier signaling
    77.
    发明授权
    Method and apparatus for facilitating reliable transmission of a control region size and detection of cross-carrier signaling 有权
    用于促进控制区域大小的可靠传输和跨载波信令的检测的方法和装置

    公开(公告)号:US09154272B2

    公开(公告)日:2015-10-06

    申请号:US12773807

    申请日:2010-05-04

    IPC分类号: H04L5/00

    摘要: Methods, apparatuses, and computer program products are disclosed for facilitating indicating and detecting control region sizes. A multi-carrier communication between a wireless terminal and a base station is facilitated by a first carrier having a first control region size and a second carrier having a second control region size. Embodiments are disclosed in which control region sizes are ascertained from a control signal, wherein the control is generated by either scrambling an aspect of the control signal based on the second control region size, or relating the second control region size with the first control region size. Other disclosed embodiments for ascertaining control region sizes include a reverse interleaver embodiment, wherein a set of modulation symbols is mapped beginning from a last data symbol and ending with a first available data symbol.

    摘要翻译: 公开了用于便于指示和检测控制区域尺寸的方法,装置和计算机程序产品。 无线终端和基站之间的多载波通信由具有第一控制区域大小的第一载波和具有第二控制区域大小的第二载波来促进。 公开了一种实施例,其中从控制信号确定控制区域大小,其中通过基于第二控制区域大小对控制信号的一个方面进行加扰或将第二控制区域大小与第一控制区域大小相关联来产生控制 。 用于确定控制区域大小的其他公开的实施例包括反向交织器实施例,其中一组调制符号从最后数据符号开始映射并以第一可用数据符号结束。

    Hearability improvements for reference signals
    79.
    发明授权
    Hearability improvements for reference signals 有权
    参考信号的可靠性改进

    公开(公告)号:US08982851B2

    公开(公告)日:2015-03-17

    申请号:US12651838

    申请日:2010-01-04

    摘要: Systems and methodologies are described that facilitate providing high reuse for transmitting reference signals, such as positioning reference signals (PRS) and cell-specific reference signals (CRS), to improve hearability thereof for applications such as trilateration and/or the like. In particular, PRSs can be transmitted in designated or selected positioning subframes. Resource elements within the positioning subframe can be selected for transmitting the PRSs and can avoid conflict with designated control regions, resource elements used for transmitting cell-specific reference signals, and/or the like. Resource elements for transmitting PRSs can be selected according to a planned or pseudo-random reuse scheme. In addition, a transmit diversity scheme can be applied to the PRSs to minimize impact of introducing the PRSs to legacy devices. Moreover, portions of a subframe not designated for PRS transmission can be utilized for user plane data transmission.

    摘要翻译: 描述了有助于提供用于传输参考信号(诸如定位参考信号(PRS)和小区特定参考信号(CRS))的高重用性的系统和方法,以改善诸如三边测量等应用的可听性。 特别地,PRS可以在指定或选定的定位子帧中传输。 可以选择定位子帧内的资源元素用于发送PRS,并且可以避免与指定的控制区域的冲突,用于发送小区特定参考信号的资源元素等。 用于传输PRS的资源元素可以根据计划或伪随机重用方案来选择。 此外,发射分集方案可以应用于PRS,以最小化将PRS引入传统设备的影响。 此外,未指定用于PRS传输的子帧的部分可以用于用户平面数据传输。

    Techniques for supporting relay operation in wireless communication systems
    80.
    发明授权
    Techniques for supporting relay operation in wireless communication systems 有权
    支持无线通信系统中的中继操作的技术

    公开(公告)号:US08971241B2

    公开(公告)日:2015-03-03

    申请号:US12568242

    申请日:2009-09-28

    摘要: Techniques for supporting operation of relay stations in wireless communication systems are described. In an aspect, a bitmap may be sent by a base station and/or a relay station to identify subframes of at least two types in multiple radio frames. For example, the bitmap may indicate whether each subframe covered by the bitmap is of a first type or a second type. UEs may use the bitmap to control their operation. For example, a UE may perform channel estimation or measurement for the subframes of the first type and may skip channel estimation and measurement for the subframes of the second type. In another aspect, a base station may transmit data and/or control information on resources not used by a relay station to transmit a reference signal. This may avoid interference to the reference signal from the relay station, which may improve performance for UEs communicating with the relay station.

    摘要翻译: 描述了用于支持无线通信系统中的中继站的操作的技术。 在一方面,位图可以由基站和/或中继站发送以识别多个无线电帧中的至少两种类型的子帧。 例如,位图可以指示位图所覆盖的每个子帧是否是第一类型或第二类型。 UE可以使用位图来控制它们的操作。 例如,UE可以对第一类型的子帧执行信道估计或测量,并且可以跳过第二类型的子帧的信道估计和测量。 在另一方面,基站可以发送关于中继站未使用的资源的数据和/或控制信息,以发送参考信号。 这可以避免对来自中继站的参考信号的干扰,这可以提高与中继站通信的UE的性能。