公开(公告)号：US20050171197A1

公开(公告)日：2005-08-04

申请号：US11053014

申请日：2005-02-08

申请人： Wen Tan ,  Jiang Cheng

发明人： Wen Tan ,  Jiang Cheng

IPC分类号： A61K31/325 ,  C07C271/10 ,  C07C271/44

CPC分类号： C07C271/44 ,  Y02P20/55

摘要： R-enantiomer of Bambuterol, its preparation and therapeutic uses are disclosed. A composition includes R-Bambuterol or its therapeutically acceptable salt. A composition of R-Bambuterol includes at least 80% by weight of the R-enantiomer and not more than 20% by weight of the S-enantiomer based on a total weight of the Bmbuterol. A process includes: (a) asymmetrically reducing a suitably substituted and suitably protected bromoacetophenone compound to a chiral phenyl-bromoethanol comprising a primary bromo group and a secondary hydroxyl group; (b) displacing the bromo group by a suitably substituted and optionally protected primary amine to produce a protected chiral phenylethanolamine, and (c) removing the protecting groups to convert the protected chiral phenylethanolamine to a chiral phenylethanolamine.

摘要翻译： 班布特罗的R-对映异构体，其制备和治疗用途被公开。 组合物包括R-班布特罗或其治疗上可接受的盐。 R-班布特罗的组合物包含至少80重量％的R-对映异构体和不超过20重量％的S-对映异构体，基于布替托罗的总重量。 方法包括：（a）将适当取代的适当保护的溴乙酰苯化合物不对称地还原成包含伯溴基和仲羟基的手性苯基 - 溴乙醇; （b）通过适当取代的和任选保护的伯胺置换溴基以产生受保护的手性苯乙醇胺，和（c）除去保护基团以将被保护的手性苯乙醇胺转化为手性苯乙醇胺。

公开(公告)号：US07336638B2

公开(公告)日：2008-02-26

申请号：US10556613

申请日：2004-04-16

申请人： Jiang Cheng ,  Li Sun

发明人： Jiang Cheng ,  Li Sun

IPC分类号： H04Q7/24

CPC分类号： H04W52/383 ,  H04W56/0045

摘要： A method for maintaining uplink synchronization in P2P (Peer to Peer) communication, performed by a user equipment in wireless communication systems, comprising: negotiating with a wireless communication network system about the schedule and parameters for controlling the uplink synchronization of the user equipment by the procedure of establishing P2P direct link; transmitting testing signals to the network system via a customized uplink channel according to the negotiated parameters; receiving the control information transmitted via a customized downlink channel from the network system according to the negotiated schedule; and maintaining uplink synchronization of the user equipment in P2P communication according to the control information. Uplink synchronization can be realized through the customized channel, so the present invention can overcome the problem of overload brought by implementing uplink synchronization through the downlink common control channel and system performance degradation caused by increasing the transmitting power of the user equipment to transmit P2P signals.

摘要翻译： 一种用于在无线通信系统中由用户设备执行的用于维持P 2 P（对等）通信中的上行链路同步的方法，包括：与无线通信网络系统协商关于用于控制用户设备的上行链路同步的调度和参数 通过建立P 2 P直接链接的过程; 根据协商的参数经由定制的上行链路信道向网络系统发送测试信号; 根据协商的时间表从网络系统接收经由定制下行链路信道发送的控制信息; 并根据控制信息保持P 2 P通信中用户设备的上行同步。 可以通过定制信道实现上行同步，本发明可以克服通过下行链路公共控制信道实现上行同步带来的过载问题，并通过增加用户设备的发送功率来传输P 2 P 信号。

公开(公告)号：US20070275696A1

公开(公告)日：2007-11-29

申请号：US11722978

申请日：2005-12-15

申请人： Jiang Cheng ,  Fan Wu

发明人： Jiang Cheng ,  Fan Wu

IPC分类号： H04L12/58

CPC分类号： H04L51/04 ,  H04L51/38

摘要： The invention proposes a method of peer-to-peer instant messaging and the mobile terminal thereof, which could make the mobile terminal to establish and maintain a list of friend users and update the connection status of the friend users timely. The method of peer-to-peer instant messaging includes following steps: receiving the list of on-line users with capability of peer-to-peer instant messaging sent by the radio network (S260); comparing said list of particular users with said received list of on-line users (S270); updating, according to said comparison result, the connection status record of each user in said list of particular users (S280) so that the mobile terminal could establish a peer-to-peer instant messaging with at least one user mobile terminal in said list of particular users according to said updated connection status record. The present invention enables the user to establish peer-to-peer connection more effectively and to perform instant messaging while occupying less network resources.

摘要翻译： 本发明提出了一种对等即时消息的方法及其移动终端，可以使移动终端建立和维护一个朋友用户的列表，并及时更新朋友用户的连接状态。 点对点即时消息的方法包括以下步骤：接收由无线电网络发送的具有对等即时消息能力的在线用户的列表（S 260）; 将所述特定用户列表与所述接收到的在线用户列表进行比较（S 270）; 根据所述比较结果，更新所述特定用户列表中每个用户的连接状态记录（S 280），使得移动终端可以与所述列表中的至少一个用户移动终端建立点对点即时消息传递 根据所述更新的连接状态记录的特定用户。 本发明使得用户能够更有效地建立对等连接，并且在占用更少的网络资源的同时执行即时消息。

公开(公告)号：US20050170840A1

公开(公告)日：2005-08-04

申请号：US10515695

申请日：2003-04-29

申请人： Jiang Cheng

发明人： Jiang Cheng

IPC分类号： H03F1/08 ,  H04L12/56 ,  H04W16/04 ,  H04W16/06 ,  H04W72/02 ,  H04W72/10 ,  H04W84/18 ,  H04Q7/20

CPC分类号： H04W16/04 ,  H04W16/06 ,  H04W72/02 ,  H04W72/10 ,  H04W84/18

摘要： Systems (1) for allocating channels to calls by firstly searching its own cluster of channels and then searching subsequent clusters of channels until a free channel has been found are provided with updating options for updating cluster priorities in dependence of searching results. These systems (1) have integrated the updating and the call handling, which improves the efficiency of the self-organizing capabilities compared to separated updating and call handling. Said updating may comprise the increasing of a cluster priority for a cluster comprising an available channel and the decreasing of a cluster priority for a cluster not comprising an available channel. An original cluster may correspond with a cell receiving a request for allocating a channel to a call, and a subsequent cluster or borrowed cluster may then correspond with a neighboring cell. Said updating may be done for borrowed clusters and may not be done for original clusters.

摘要翻译： 用于通过首先搜索其自己的信道簇然后搜索后续的信道簇直到找到空闲信道的系统（1）为根据搜索结果更新簇优先级提供更新选项。 这些系统（1）集成了更新和呼叫处理，与分离的更新和呼叫处理相比，这提高了自组织能力的效率。 所述更新可以包括对于包括可用信道的集群的集群优先级的增加以及用于不包括可用信道的集群的集群优先级的减少。 原始集群可以对应于接收到向呼叫分配信道的请求的小区，并且随后的集群或借用集群然后可以与相邻小区相对应。 可以对所借用的簇进行所述更新，并且可能不对原始簇进行更新。

公开(公告)号：US20050148318A1

公开(公告)日：2005-07-07

申请号：US10509231

申请日：2003-03-05

申请人： Jiang Cheng

发明人： Jiang Cheng

IPC分类号： H04B1/707 ,  H04J13/00 ,  H04J13/16 ,  H04J13/20 ,  H04W4/12 ,  H04W36/06 ,  H04W72/04 ,  H04M11/00

CPC分类号： H04W36/06 ,  H04J13/0044 ,  H04J13/20 ,  H04W4/12 ,  H04W72/0466

摘要： Telecommunication systems comprising base stations (1) and mobile terminals (11) generate channelization codes like Orthogonal Variable Spreading Factor codes or OVSF codes defining channels used for communication between base stations (1) and mobile terminals (11) and calculate cost functions for these channelization codes. The base stations (1) are provided with transferors (7) for transferring ongoing calls from first channels defined by first channelization codes to second channels defined by second channelization codes in dependence of calculated cost functions, to be able to treat ongoing calls dynamically, by allocating channels dynamically to ongoing calls. Said transferring is realized via transferring messages. Preferably a low complex cost function is a function of a sum of products of an occupation parameter and a data rate for at least a specific level and divided by a data rate for a neighboring level, to reduce the processing capacity.

摘要翻译： 包括基站（1）和移动终端（11）的电信系统生成诸如正交可变扩频因子码或定义用于基站（1）和移动终端（11）之间的通信的信道的OVSF码的信道化码，并计算这些信道化的成本函数 代码。 基站（1）设置有用于将正在进行的呼叫从第一信道化码定义的第一信道转移到根据计算出的成本函数由第二信道化码定义的第二信道的转移器（7），以便能够动态地对待正在进行的呼叫 将频道动态分配到正在进行的呼叫。 所述传送通过传送消息来实现。 优选地，低复杂成本函数是占用参数和至少特定级别的数据速率的乘积之和除以邻近级别的数据速率的函数，以减少处理能力。