发明申请
US20080304408A1 System and Method for Improving Service and Device Discovery in a Upnp-Based Wireless Communication Network
有权
用于改进基于UPnp的无线通信网络中的服务和设备发现的系统和方法
- 专利标题: System and Method for Improving Service and Device Discovery in a Upnp-Based Wireless Communication Network
- 专利标题(中): 用于改进基于UPnp的无线通信网络中的服务和设备发现的系统和方法
-
申请号: US12096621申请日: 2006-11-24
-
公开(公告)号: US20080304408A1公开(公告)日: 2008-12-11
- 发明人: Oliver Kraemer , Shin Saito
- 申请人: Oliver Kraemer , Shin Saito
- 申请人地址: DE Berlin
- 专利权人: Sony Deutschland GmbH
- 当前专利权人: Sony Deutschland GmbH
- 当前专利权人地址: DE Berlin
- 优先权: EP05028274.8 20051223
- 国际申请: PCT/EP2006/011306 WO 20061124
- 主分类号: H04B7/216
- IPC分类号: H04B7/216
摘要:
A system and method that improve service and device discovery in a UPnP-based wireless communication network and avoids unnecessary broadcast messages on a MAC sublayer of a DLC layer caused by UPnP multicast messages on an IP layer by intercepting UPnP multicast messages in a network protocol stack below the IP layer. A module intercepts multicast UDP packets destined to a UPnP IP multicast address and port, the multicast UDP packets containing UPnP packets as payload. The module executes DLC/MAC-based service discovery functions to perform wireless network-specific device discovery and to find UPnP-enabled devices in the wireless communication network. Once a wireless network device discovery has returned nodes that fulfill criteria given in the search, the module uses unicast DLC/MAC messages to send UPnP packets to only those nodes that are UPnP-enabled and whose device type matches the respective UPnP device type sought.
公开/授权文献
信息查询