专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

31. 发明申请

US20120276896A1 ADAPTIVE MODULATION AND CODING SCHEME ADJUSTMENT IN WIRELESS NETWORKS 审中-公开
标题翻译：无线网络中的自适应调制和编码方案调整
公开(公告)号：US20120276896A1
公开(公告)日：2012-11-01
申请号：US13394754
申请日：2010-09-15
申请人： Hong Ren , Xixian Chen , Ping Yu , Mircea Dumitrescu
发明人： Hong Ren , Xixian Chen , Ping Yu , Mircea Dumitrescu
IPC分类号： H04W24/02
CPC分类号： H04L1/0003 , H04L1/0009 , H04L1/0016 , H04L1/0018 , H04L1/0643 , H04L1/1867 , H04L27/2611 , H04L27/2647
摘要： In a method of adjusting a modulation and coding scheme (MCS) level for a transmission on a communication channel between a base station and a mobile terminal, at the base station: a target value for an error metric is defined; the error metric is measured; an MCS offset based on a degree of deviation of the measurement of the error metric from the target value is determined; an indication of a channel quality measurement for the communication channel is received from the mobile terminal; a pre-adjusted MCS level corresponding to the indication of the channel quality measurement is determined using a fixed mapping between a set of channel quality levels and a corresponding set of MCS levels; an adjusted MCS level is determined by adding the MCS offset to the pre-adjusted MCS level; and the adjusted MCS level is assigned to the transmission.
摘要翻译：在基站和移动终端之间的通信信道上进行传输的调制和编码方案（MCS）级别的调整方法中，在基站处：定义误差量度的目标值; 测量误差度量; 确定基于误差度量的测量与目标值的偏差程度的MCS偏移量; 从移动终端接收通信信道的信道质量测量的指示; 使用在一组信道质量级别和相应的MCS级别集合之间的固定映射来确定与信道质量测量的指示相对应的预先调整的MCS级别; 通过将MCS偏移量与预先调整的MCS级别相加来确定调整后的MCS级别; 并且调整后的MCS级别被分配给传输。

32. 发明申请

US20120026985A1 Method and Apparatus for Grant Loss Detection and Related Processing in a Wireless Communication Network 有权
标题翻译：无线通信网络授权丢失检测及相关处理方法与装置
公开(公告)号：US20120026985A1
公开(公告)日：2012-02-02
申请号：US12846003
申请日：2010-07-29
申请人： Hong Ren , Xixian Chen , Xiao-Dong Li , Patrick Lie Chin Cheong
发明人： Hong Ren , Xixian Chen , Xiao-Dong Li , Patrick Lie Chin Cheong
IPC分类号： H04J3/00
CPC分类号： H04L1/0025 , H04L1/0009 , H04L1/1692 , H04L1/1812 , H04L1/1825 , H04L1/1887 , H04L1/1896
摘要： The present invention provides a method and apparatus for improving wireless communication network performance and efficiency, based on detecting the occurrence of grant loss in relation to the transmission of scheduling grants to mobile terminals over a downlink control channel. Grant loss detection is based on detecting erasure events corresponding to the transmitted scheduling grants, and the incidence of grant loss with respect to a given mobile terminal can be tracked and used to compensate the control value(s) used for link adaptation of the downlink control channel, with respect to that terminal. Additionally, or alternatively, when a given grant is determined to be lost, a new grant is sent and the HARQ redundancy version is reset for the newly scheduled transmission.
摘要翻译：本发明提供了一种用于通过下行链路控制信道检测相对于向移动终端的调度授权的传输的授权损失的发生来提高无线通信网络性能和效率的方法和装置。授权损失检测是基于检测与所发送的调度授权相对应的擦除事件，并且可以跟踪给定移动终端的授权丢失的发生率并用于补偿用于下行链路控制的链路自适应的控制值通道，相对于该终端。另外或替代地，当确定给定的授权丢失时，发送新的授权，并且针对新调度的传输重置HARQ冗余版本。

33. 发明授权

US07236764B2 Method and apparatus for updating locations of dormant mobile stations 有权
标题翻译：更新休眠移动台位置的方法和装置
公开(公告)号：US07236764B2
公开(公告)日：2007-06-26
申请号：US10751952
申请日：2004-01-07
申请人： Hang Zhang , Mo-Han Fong , Ke-Chi Jang , Jun Li , Xixian Chen , Chung-Ching Wang , Geng Wu , James Weisert
发明人： Hang Zhang , Mo-Han Fong , Ke-Chi Jang , Jun Li , Xixian Chen , Chung-Ching Wang , Geng Wu , James Weisert
IPC分类号： H04Q7/20
CPC分类号： H04W60/02 , H04W24/10 , H04W36/08 , H04W60/04 , H04W68/04
摘要： In code division multiple access communication systems, there are three levels for updating locations of dormant mobile stations (MSs) and setting up fast call. In sector and are levels, the dormant MS send a layer 2 message containing a message type and MS identifier to a base transceiver station (BTS). Since the message is associated with the sector where the MS is located, the network is aware of the MS's location from the updated location. The dormant MS sends to the BTS a reconnect message containing a message type and an MS identifier. The MS's dormant to active state transition is initiated by the MS. In the communication network, sub-packet zone ID is broadcasted in the overhead message. The MS reports its location change on R-CSCH and the network with the BSC level control can page the MS within the zone where the MS sends the report.
摘要翻译：在码分多址通信系统中，有三个级别用于更新休眠移动站（MS）的位置和建立快速呼叫。在扇区和级别中，休眠MS向基站收发器（BTS）发送包含消息类型和MS标识符的第2层消息。由于该消息与MS所在的扇区相关联，所以网络从更新的位置了解MS的位置。休眠MS向BTS发送包含消息类型和MS标识符的重新连接消息。 MS休眠到主动状态转换由MS启动。在通信网络中，在开销消息中广播子包区域ID。 MS报告其在R-CSCH上的位置变化，并且具有BSC级别控制的网络可以在MS发送报告的区域内查询MS。

34. 发明授权

US06549594B1 Timing phase recovery method and apparatus 有权
标题翻译：定时相恢复方法及装置
公开(公告)号：US06549594B1
公开(公告)日：2003-04-15
申请号：US09329365
申请日：1999-06-10
申请人： Xixian Chen , Song Zhang , Shiquan Wu
发明人： Xixian Chen , Song Zhang , Shiquan Wu
IPC分类号： H04L700
CPC分类号： H04L25/0202
摘要： A method for timing phase recovery including the steps of first, estimating an open-eye sequence of a received signal, second, estimating a channel response using the open-eye sequence, and third, correlating the estimated channel response with an ideal channel response to determine the peak correlation location. The peak correlation location corresponds to the recovered timing phase. A system including means for estimating an open-eye sequence of a received signal, a channel estimator and a correlator is also provided. The channel estimator is used for estimating a channel response using the open-eye sequence and the received signal. The correlator is used for correlating the estimated channel response with an ideal channel response to determine the peak correlation location, the peak correlation location corresponding to the recovered timing phase.
摘要翻译：一种用于定时相位恢复的方法，包括以下步骤：首先估计接收信号的睁眼序列，其次，使用睁眼序列估计信道响应，以及第三，将所估计的信道响应与理想信道响应相关联确定峰值相关位置。峰值相关位置对应于恢复的定时相位。还提供了一种包括用于估计接收信号的睁眼序列的装置，信道估计器和相关器的系统。信道估计器用于使用睁眼序列和接收信号来估计信道响应。相关器用于将估计的信道响应与理想信道响应相关以确定峰值相关位置，对应于恢复的定时相位的峰值相关位置。

35. 发明授权

US06510186B1 Signal time of arrival estimation method and system 有权
标题翻译：信号到达时间估计方法和系统
公开(公告)号：US06510186B1
公开(公告)日：2003-01-21
申请号：US09321818
申请日：1999-05-28
申请人： Xixian Chen , Song Zhang , Shiquan Wu
发明人： Xixian Chen , Song Zhang , Shiquan Wu
IPC分类号： H04L2706
CPC分类号： H04L25/0202
摘要： A time delay estimation method including the steps of first, estimating a channel response from a received signal, and second, determining a time delay estimate by correlating the estimated channel response with an ideal channel response. Further, a system including a channel estimator and a correlator is provided. The channel estimator is used for estimating a channel response from a received signal and the correlator is used for estimating a time delay using the channel response and an ideal channel response.
摘要翻译：一种时间延迟估计方法，包括以下步骤：首先，从接收信号估计信道响应，其次，通过将所估计的信道响应与理想信道响应相关来确定时延估计。此外，包括信道估计器和提供相关器。信道估计器用于从接收信号估计信道响应，并且相关器用于使用信道响应和理想信道响应来估计时间延迟。

36. 发明授权

US5952942A Method and device for input of text messages from a keypad 失效
标题翻译：用于从键盘输入文本消息的方法和设备
公开(公告)号：US5952942A
公开(公告)日：1999-09-14
申请号：US754453
申请日：1996-11-21
申请人： Sreeram Balakrishnan , Xixian Chen , Yu Dong
发明人： Sreeram Balakrishnan , Xixian Chen , Yu Dong
IPC分类号： G06F3/023 , H04M1/2745 , H04M1/725 , H03K17/94
CPC分类号： H04M1/72552 , G06F3/0237 , H04M1/274558 , H04M2250/70
摘要： A method of text entry into a device by activating keys of a keypad (16), where a key represents various characters. Input is delivered to a processor (30) corresponding to the keys activated. A dictionary (33) is searched for candidate combinations of characters corresponding to the keys activated. The candidate combinations are rank ordered, for example using language model data and feedback (14, 38) is provided to a user indicating at least a highest rank ordered candidate combination.
摘要翻译：通过激活键盘（16）的键的文本输入到设备的方法，其中键表示各种字符。输入被传递到对应于激活的键的处理器（30）。搜索词典（33），查找与激活的键对应的字符的候选组合。候选组合是等级排序的，例如使用语言模型数据，并且反馈（14,38）被提供给指示至少最高等级有序候选组合的用户。

37. 发明授权

US08995259B2 Systems and methods for resource booking for admission control and scheduling using DRX 有权
标题翻译：使用DRX进行准入控制和调度的资源预留系统和方法
公开(公告)号：US08995259B2
公开(公告)日：2015-03-31
申请号：US13527108
申请日：2012-06-19
申请人： Ricardo Paredes , Xixian Chen , Anders Ohlsson
发明人： Ricardo Paredes , Xixian Chen , Anders Ohlsson
IPC分类号： H04W28/02 , H04W28/16 , H04W28/26
CPC分类号： H04W28/0289 , H04W28/16 , H04W28/26
摘要： Systems and methods provide for performing admission control in a communications network. The method includes: receiving a request for an entity or service for admission to the communications network; calculating resources, wherein the step of calculating resources includes: estimating a first future resource use for current entities and services in the communications network; and estimating a second future resource use for the entity or service received in the request; determining admission to the communications network of the received request based at least in part on the step of calculating resources; and using a partitionable booking window, if admission is allowed for the received request, for booking the first and second future resource uses based at least in part on the step of calculating resources.
摘要翻译：系统和方法提供在通信网络中执行准入控制。该方法包括：接收对于进入通信网络的实体或服务的请求; 计算资源，其中所述计算资源的步骤包括：估计所述通信网络中当前实体和服务的第一未来资源使用; 以及估计在所述请求中接收的所述实体或服务的第二未来资源使用; 至少部分地基于计算资源的步骤来确定对所述通信网络的接收请求的准入; 以及至少部分地基于计算资源的步骤，使用可分割预订窗口，如果允许所接收的请求允许，则预订第一和第二未来的资源使用。

38. 发明授权

US08248912B2 Shared channel structure, ARQ systems and methods 有权
标题翻译：共享渠道结构，ARQ系统和方法
公开(公告)号：US08248912B2
公开(公告)日：2012-08-21
申请号：US11414269
申请日：2006-05-01
申请人： Xixian Chen , Neil N. McGowan , Muhammad Khaledul Islam , Ning Guo , Hong Ren , Litong Li
发明人： Xixian Chen , Neil N. McGowan , Muhammad Khaledul Islam , Ning Guo , Hong Ren , Litong Li
IPC分类号： H04J11/00
CPC分类号： H04W72/1289 , H04B1/7073 , H04B7/2618 , H04B7/2637 , H04B2201/70703 , H04J13/0048 , H04L1/0003 , H04L1/0009 , H04L1/0014 , H04L1/0025 , H04L1/0029 , H04L1/0046 , H04L1/0068 , H04L1/0072 , H04L1/0073 , H04L1/08 , H04L1/1607 , H04L1/1809 , H04L2001/125 , H04W28/04 , H04W48/08 , H04W48/16 , H04W52/58 , H04W72/12 , H04W74/00 , H04W74/04
摘要： A forward link design is provided employing CDMA (code division multiple access) technologies in which time division multiplexing is employed between data and control information on the forward link to service multiple users per slot. Another forward link design employing CDMA (code division multiple access) technologies is provided in which code division multiplexing between data and control information is employed on the forward link to service multiple users per slot, which is preferably backwards compatible with legacy standards such as IS2000A. A reverse link design is also provided.
摘要翻译：提供了使用CDMA（码分多址）技术的前向链路设计，其中在前向链路上的数据和控制信息之间采用时分多路复用来为每个时隙服务多个用户。提供了采用CDMA（码分多址）技术的另一个前向链路设计，其中在前向链路上采用数据和控制信息之间的码分复用来为每个时隙服务多个用户，其优选地与诸如IS2000A的传统标准向后兼容。还提供了反向链路设计。

39. 发明申请

US20120170524A1 Allocation of Acknowledgement Channels to Channel Groups Having Variable Transmit Energies 有权
标题翻译：将确认通道分配给具有可变发射能量的通道组
公开(公告)号：US20120170524A1
公开(公告)日：2012-07-05
申请号：US13119151
申请日：2010-12-31
申请人： Hong Ren , Xixian Chen
发明人： Hong Ren , Xixian Chen
IPC分类号： H04W72/04
CPC分类号： H04L1/1692 , H04L1/1812 , H04L5/0055 , H04W28/04 , H04W52/325 , H04W52/346 , H04W72/04
摘要： A method and apparatus is provided for assigning resources for an acknowledgement channel, such as the PHICH in LTE systems. Acknowledgement channels for the mobile terminals are assigned to channel groups based on a predetermined assignment criteria. All acknowledgment channels in the same channel group receive acknowledgements on the same downlink resources (e.g., resource elements in OFDM system). A required transmit energy for each channel is determined. If the total required transmit energy for all channels exceeds an available transmit power, the allocated transmit energy for each channel is either scaled down so that the total actual transmit power for all acknowledgment channels is equal to the available transmit power, or some acknowledgment channels are not transmitted.
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。基于预定的分配标准将移动终端的确认信道分配给信道组。相同信道组中的所有确认信道在相同的下行链路资源（例如OFDM系统中的资源元素）上接收确认。确定每个通道所需的发射能量。如果所有信道的总需要的发射能量超过可用的发射功率，则每个信道的分配的发射能量被按比例缩小，使得所有确认信道的总实际发射功率等于可用的发射功率，或者一些确认信道不传输

40. 发明申请

US20120170479A1 Allocation of Acknowledgement Channels to Channel Groups Having Fixed Transmit Energies 有权
标题翻译：将确认信道分配给具有固定发射能量的信道组
公开(公告)号：US20120170479A1
公开(公告)日：2012-07-05
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： H04W72/10 , H04W24/00
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。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式