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    • 47. 发明申请
    • Dynamic, dual-mode wireless network architecture with a split layer 2 protocol
    • 动态双模无线网络架构,具有分裂层2协议
    • US20070047581A1
    • 2007-03-01
    • US11586062
    • 2006-10-24
    • Mo-Han FongGeng Wu
    • Mo-Han FongGeng Wu
    • H04J3/16
    • H04L29/06H04L69/32H04L69/324
    • A wireless data network architecture supports both centralized mode operation and distributed mode operation. In the centralized mode, all of the Open Systems Interconnection (OSI) reference model data link layer, also known as layer 2, protocol functions are implemented within the radio access network control entity, such as at a base station controller (BSC) or similar network controller, before the data packets are delivered to one or more base station transceiver subsystems (BTSs). In the distributed mode, some of the layer 2 protocol functions are implemented at the BSC or similar network controller, and some of the layer 2 protocol functions are implemented at the BTSs. The data transmission is dynamically switched from one of the modes to the other as a function of various implementation-specific triggers.
    • 无线数据网络架构支持集中式模式操作和分布式模式操作。 在集中式模式中,所有开放系统互连(OSI)参考模型数据链路层(也称为层2)协议功能都在无线电接入网络控制实体内实现,例如在基站控制器(BSC)或类似的 网络控制器,在将数据分组递送到一个或多个基站收发器子系统(BTS)之前。 在分布式模式中,一些层2协议功能在BSC或类似网络控制器上实现,一些第二层协议功能在BTS处实现。 作为各种实现特定触发的功能,数据传输从一种模式动态切换到另一种模式。
    • 50. 发明授权
    • IP adaptation layer on backhaul connection of cellular network
    • 蜂窝网络回程连接上的IP适配层
    • US06920125B1
    • 2005-07-19
    • US09699196
    • 2000-10-27
    • Geng Wu
    • Geng Wu
    • H04L12/56H04L29/06H04W8/20H04W28/06H04W80/04H04W84/04H04W88/12H04W92/12H04Q7/24
    • H04W28/06H04L29/06027H04L69/04H04L69/16H04L69/161H04L69/168H04L69/22H04W8/20H04W80/04H04W84/042H04W88/12H04W92/12
    • The present invention relates to an improved wireless communications system capable of efficiently transmitting smaller-sized data packets (e.g. 10 to 20 byte length) that are frequently delivered (e.g. every 10 to 20 msec.) to mobile nodes on the communications system, such as voice communications. Because an uncompressed TCP/IP or UDP/IP header length is disproportionally large compared to the smaller-sized data packets, the bandwidth on the backhaul connection between the base station controller unit (BSC) and the base transceiver station (BTS) is not being utilized as efficiently as possible. The present invention optimizes the transmission of information packets on the backhaul connection by using an IP Adaptation Layer (IPAL) protocol to map the user connections, eliminate the large header on information packets having smaller-sized data packet sizes, and concatenating the data packets into an IPAL information packet for tunneling on the backhaul connection. In this manner, the present invention more efficiently uses the available bandwidth on the backhaul connection by selectively reducing the overhead (e.g. headers) of the information packet transmission.
    • 本发明涉及一种改进的无线通信系统,其能够有效地将经常传送(例如每10到20毫秒)的较小尺寸的数据分组(例如,10至20个字节的长度)传送到通信系统上的移动节点,例如 语音通信。 由于与较小尺寸的数据包相比,未压缩的TCP / IP或UDP / IP标头长度不成比例,基站控制器单元(BSC)和基站收发器(BTS)之间的回程连接的带宽不是 尽可能高效地利用。 本发明通过使用IP适配层(IPAL)协议来映射用户连接来优化回程连接上的信息分组的传输,消除具有较小尺寸数据分组大小的信息分组上的大标题,并将数据分组连接成 用于在回程连接上隧道的IPAL信息包。 以这种方式,本发明通过选择性地减少信息分组传输的开销(例如头部)来更有效地使用回程连接上的可用带宽。