公开(公告)号：US08842565B2

公开(公告)日：2014-09-23

申请号：US13392300

申请日：2010-12-31

申请人： Hong Ren ,  Xixian Chen

发明人： Hong Ren ,  Xixian Chen

IPC分类号： H04L5/00 ,  H04L1/16

CPC分类号： H04L5/0055 ,  H04L1/1692 ,  Y02D70/00

摘要： A method and apparatus is provided for assigning resources for an acknowledgement channel, such as the PHICH in LTE systems. A list of acknowledgement channels for a group of scheduled mobile terminals is generated. The list is sorted in descended order of the required transmit energies for the corresponding mobile terminals. The acknowledgement channels are then assigned to channel groups one at a time in sorted order to an available channel group with the lowest cumulative transmit energy. By sorting the channel list before assigning resources, the variance in the transmit energies for different channel groups is reduced. Given enough number of acknowledgement channel groups, the small variance in the transmit energies for different channel groups implies improved error rate performance.

摘要翻译： 提供了一种用于为LTE系统中的诸如PHICH之类的确认信道分配资源的方法和装置。 生成一组调度的移动终端的确认信道的列表。 列表按照相应移动终端的所需发射能量的降序排列。 然后将确认信道按照排序顺序一次一个地分配给具有最低累积发送能量的可用信道组的信道组。 通过在分配资源之前对信道列表进行排序，减少了不同信道组的发射能量差异。 给定足够数量的确认信道组，不同信道组的发射能量的小变化意味着提高的误码率性能。

公开(公告)号：US08787340B2

公开(公告)日：2014-07-22

申请号：US13364404

申请日：2012-02-02

申请人： Xixian Chen ,  Vasanta Chivukula ,  Weigang Li ,  Guoqiang Xue ,  Ryan Santa ,  Miroslav Budic ,  Brian Troup ,  Martin Kendall

发明人： Xixian Chen ,  Vasanta Chivukula ,  Weigang Li ,  Guoqiang Xue ,  Ryan Santa ,  Miroslav Budic ,  Brian Troup ,  Martin Kendall

IPC分类号： H04W76/02 ,  H04W76/00 ,  H04L1/16 ,  H04W72/04

CPC分类号： H04W76/005 ,  H04L1/16 ,  H04W72/042 ,  H04W76/45

摘要： A method of connection setup in mobile wireless data communications systems is disclosed where the connection setup time is decreased for delay-sensitive communications sessions relative to the normal connection setup time for confidence-dependent communications sessions. This is achieved by performing some of the connection set-up steps for delay-sensitive communications sessions after successfully demodulating a smaller number of indications identifying an access terminal's desired serving resource than would be demodulated in the case of a confidence-dependent communication session prior to performing the same connection set-up steps.

摘要翻译： 公开了一种移动无线数据通信系统中的连接建立方法，其中相对于用于依赖于置信的通信会话的正常连接建立时间，延迟敏感通信会话的连接建立时间减少。 这是通过在成功地解调识别接入终端的期望服务资源的较少数量的指示之后执行用于延迟敏感通信会话的一些连接建立步骤来实现的，而不是在依赖于依赖于通信会话的情况下被解调的 执行相同的连接设置步骤。

公开(公告)号：US08761108B2

公开(公告)日：2014-06-24

申请号：US13532144

申请日：2012-06-25

申请人： Hong Ren ,  Girum Alebachew Fantaye ,  Xixian Chen ,  Ping Yu

发明人： Hong Ren ,  Girum Alebachew Fantaye ,  Xixian Chen ,  Ping Yu

IPC分类号： H04W4/00

CPC分类号： H04L1/0003 ,  H04L1/0009 ,  H04L1/0015 ,  H04L1/1893 ,  H04L5/0042 ,  H04L5/0046 ,  H04W72/12

摘要： A radio resource management method is provided. Data for transmission is stored. The stored data is associated with user equipment (UE). A channel quality is estimated. A first modulation and coding scheme (MCS) is determined based at least in part on the estimated channel quality. A first number of scheduling blocks (SBs) required to transmit the stored data is determined based at least in part on the first MCS. The first number of SBs are a minimum of an initial number of SBs and available amount of SBs. A link quality is calculated based at least in part on a channel condition associated with the first number of SBs. A second MCS is determined based at least in part on the calculated link quality and a link quality requirement.

摘要翻译： 提供无线资源管理方法。 存储用于传输的数据。 存储的数据与用户设备（UE）相关联。 估计通道质量。 至少部分地基于估计的信道质量来确定第一调制和编码方案（MCS）。 至少部分地基于第一MCS确定发送存储的数据所需的调度块（SB）的第一数量。 SB的第一个数量是SB的初始数量和SB的可用量的最小值。 至少部分地基于与第一数量的SB相关联的信道条件来计算链路质量。 至少部分地基于所计算的链路质量和链路质量要求来确定第二MCS。

公开(公告)号：US20130010907A1

公开(公告)日：2013-01-10

申请号：US13620737

申请日：2012-09-15

申请人： Jiandong Zhuang ,  Xixian Chen ,  Edward Ken Kiu Mah

发明人： Jiandong Zhuang ,  Xixian Chen ,  Edward Ken Kiu Mah

IPC分类号： H03D1/04

CPC分类号： H04W72/085 ,  H04L25/022 ,  H04L25/024

摘要： A wireless receiver receives reference signals over a wireless link The wireless receiver calculates a selection indication based on the received reference signals, and the wireless receiver selects from among plural channel estimation techniques based on the selection indication, where the selected channel estimation technique is usable to perform channel estimation of the wireless link.

摘要翻译： 无线接收机通过无线链路接收参考信号无线接收机基于所接收的参考信号来计算选择指示，并且无线接收机根据选择指示从多个信道估计技术中进行选择，其中所选择的信道估计技术可用于 执行无线链路的信道估计。

公开(公告)号：US08155089B1

公开(公告)日：2012-04-10

申请号：US12856054

申请日：2010-08-13

申请人： Xixian Chen ,  Woon Thong ,  Ganesh Sundararajan ,  Edward Ken Kiu Mah ,  Karl Mann

发明人： Xixian Chen ,  Woon Thong ,  Ganesh Sundararajan ,  Edward Ken Kiu Mah ,  Karl Mann

IPC分类号： H04B7/216 ,  H04B1/00

CPC分类号： H04B1/712 ,  H04B1/7117

摘要： Methods and apparatus for performing finger de-spreading and MRC combining are provided. A large antenna buffer is used to buffer all the finger signals of the same user so that the receiver can do both de-spreading and MRC at the same time without buffering the de-spreading finger symbols. For each user, a reference time is introduced to align all the finger signals of the same user in the Antenna Buffer. The reference time delay is used to generate the PN codes for de-spreading, as well as to count the number of symbols in a PCG or a frame. Methods for antenna buffer arrangement, interpolating filter implementation, channel estimation and MRC for traffic data channels, timing for the user's finger signal de-spreading and MRC, long code and short code generation for de-spreading, new finger allocation and finger timing adjustment.

摘要翻译： 提供了用于执行手指解扩和MRC组合的方法和装置。 使用大的天线缓冲器来缓冲同一用户的所有手指信号，使得接收机可以同时进行解扩和MRC同时而不缓冲解扩手指符号。 对于每个用户，引入参考时间以对准天线缓冲器中相同用户的所有手指信号。 参考时间延迟用于产生用于解扩的PN码，以及对PCG或帧中的符号数进行计数。 用于天线缓冲器布置，内插滤波器实现，用于业务数据信道的信道估计和MRC，用户手指信号去扩展的定时和用于解扩的长码和短码生成，新的手指分配和手指定时调整的方法。

公开(公告)号：US08134963B1

公开(公告)日：2012-03-13

申请号：US12098073

申请日：2008-04-04

申请人： Xixian Chen ,  Vasanta Chivukula ,  Weigang Li ,  Guoqiang Xue ,  Ryan Santa ,  Miroslav Budic ,  Brian Troup ,  Martin Kendall

发明人： Xixian Chen ,  Vasanta Chivukula ,  Weigang Li ,  Guoqiang Xue ,  Ryan Santa ,  Miroslav Budic ,  Brian Troup ,  Martin Kendall

IPC分类号： H04Q7/00

CPC分类号： H04W76/005 ,  H04L1/16 ,  H04W72/042 ,  H04W76/45

摘要： A method of connection setup in mobile wireless data communications systems is disclosed where the connection setup time is decreased for delay-sensitive communications sessions relative to the normal connection setup time for confidence-dependent communications sessions. This is achieved by performing some of the connection set-up steps for delay-sensitive communications sessions after successfully demodulating a smaller number of indications identifying an access terminal's desired serving resource than would be demodulated in the case of a confidence-dependent communication session prior to performing the same connection set-up steps.

摘要翻译： 公开了一种移动无线数据通信系统中的连接建立方法，其中相对于用于依赖于置信的通信会话的正常连接建立时间，延迟敏感通信会话的连接建立时间减少。 这是通过在成功地解调识别接入终端的期望服务资源的较少数量的指示之后执行用于延迟敏感通信会话的一些连接建立步骤来实现的，而不是在依赖于依赖于通信会话的情况下被解调的 执行相同的连接设置步骤。

公开(公告)号：US08116781B2

公开(公告)日：2012-02-14

申请号：US11311260

申请日：2005-12-20

申请人： Xixian Chen ,  Xiao-Dong Li ,  James Weisert ,  Qiang Yuan ,  Miroslav Budic

发明人： Xixian Chen ,  Xiao-Dong Li ,  James Weisert ,  Qiang Yuan ,  Miroslav Budic

IPC分类号： H04W72/00

CPC分类号： H04W72/10 ,  H04J13/0048 ,  H04W28/08 ,  H04W72/04 ,  H04W72/0486 ,  H04W72/06 ,  H04W72/1236 ,  H04W88/08

摘要： The invention provides for the management of wireless resources, which can reduce call blocking by allowing high priority services, under suitable conditions, to use resources allocated to low priority services. Thus high priority services can pre-empt the usage of wireless resources by low priority services. This has the advantage of reducing call blocking for high priority calls, while permitting low priority calls to have more access to radio resources than conventional systems with the same call blocking rate. Thus a base station can implement a preemption mechanism that would reclaim Walsh Code and Forward Power resources from an active Supplemental Channel (SCH) burst in order to accommodate incoming Fundamental Channel (FCH) requests.

摘要翻译： 本发明提供了无线资源的管理，其可以在合适的条件下使用分配给低优先级业务的资源来允许高优先级业务来减少呼叫阻塞。 因此，高优先级服务可以通过低优先级业务来预先利用无线资源。 这具有减少高优先级呼叫的呼叫阻塞的优点，同时允许低优先级呼叫比具有相同呼叫阻塞率的传统系统更多地接入无线电资源。 因此，基站可以实现抢占机制，其将从活动的补充信道（SCH）突发收回沃尔什码和转发功率资源，以便适应输入的基本信道（FCH）请求。

公开(公告)号：US07936720B2

公开(公告)日：2011-05-03

申请号：US11412959

申请日：2006-04-28

申请人： Xixian Chen ,  Weigang Li ,  Vasanta Chivukula ,  Shiva Mirzaei-Rezaei ,  Brian Troup ,  Miroslav Budic ,  Yong Zhou ,  Ryan Santa

发明人： Xixian Chen ,  Weigang Li ,  Vasanta Chivukula ,  Shiva Mirzaei-Rezaei ,  Brian Troup ,  Miroslav Budic ,  Yong Zhou ,  Ryan Santa

IPC分类号： H04W4/00

CPC分类号： H04W36/18 ,  H04W72/042

摘要： A method and system for connection management in a wireless data network, such as a 1xEV-DO network adds connections to new network sectors upon receipt of a connection request from an active terminal, but removes data connections that the active terminal requests to be dropped only after confirmation from the active terminal that a channel allocation message has been received and applied. The active network maintains an active set of connections that is at least as large as the active set maintained by the active terminal and does not initiate a connection termination if no confirmation of the channel allocation message is received. This allows for a reduction in the number of dropped connections.

摘要翻译： 在诸如1xEV-DO网络的无线数据网络中的连接管理的方法和系统在从活动终端接收到连接请求时添加到新网络扇区的连接，但是移除活动终端请求仅丢弃的数据连接 在从活动终端确认已经接收并应用信道分配消息之后。 活动网络维护至少与由活动终端维护的活动集一样大的连接的活跃集合，并且如果不接收到信道分配消息的确认，则不发起连接终止。 这样可以减少掉线连接的数量。

公开(公告)号：US06493380B1

公开(公告)日：2002-12-10

申请号：US09321819

申请日：1999-05-28

申请人： Shiquan Wu ,  Song Zhang ,  Xixian Chen

发明人： Shiquan Wu ,  Song Zhang ,  Xixian Chen

IPC分类号： H04B726

CPC分类号： G01S5/0215 ,  G01S5/02 ,  G01S5/06 ,  H04B7/005 ,  H04L25/0234

摘要： A method for estimating a time delay including the steps of first, estimating a channel spectrum from a received signal and a known reference signal, second, extracting a virtual array structure from the estimated channel spectrum, and third, determining the signal time delay using the virtual array structure. Further, a system for estimating a time delay including a channel spectrum estimator, means for extracting a virtual array structure and means for determining the time delay is provided. The channel spectrum estimator is used for estimating a channel spectrum from a received signal and a known reference signal. The means for extracting a virtual array structure uses the estimated channel spectrum. The means for determining the time delay uses the virtual array structure.

摘要翻译： 一种用于估计时间延迟的方法，包括首先从接收信号估计信道频谱和已知参考信号的步骤，其次，从所估计的信道频谱中提取虚拟阵列结构，以及第三，使用 虚拟阵列结构。 此外，提供了一种用于估计包括信道频谱估计器，用于提取虚拟阵列结构的装置和用于确定时间延迟的装置的时间延迟的系统。 信道频谱估计器用于从接收信号和已知参考信号估计信道频谱。 用于提取虚拟阵列结构的装置使用估计的信道频谱。 用于确定时间延迟的方法使用虚拟阵列结构。

公开(公告)号：US20200153538A1

公开(公告)日：2020-05-14

申请号：US16620129

申请日：2018-06-13

申请人： Xixian CHEN ,  Jung-Fu CHENG ,  James Jianfeng WENG ,  Jun Wang

发明人： Xixian CHEN ,  Jung-Fu CHENG ,  James Jianfeng WENG ,  Jun Wang

IPC分类号： H04L1/00

摘要： There is provided a method performed by a wireless device for handling user data. The method comprises: receiving an index (such as a Transport Block Size (TBS) index) from a network node; determining a TBS based on the received index; determining a modulation order based at least on the determined TBS; and performing one of decoding and encoding the user data based at least on the determined modulation order.