| 摘要 |
The invention proposes a network system comprising a plurality of network nodes ( 10, 11 ), each of the network nodes comprising means ( 103, 113 ) for temporarily forming a group with at least one of the plurality of network nodes, sending means ( 101, 111 ) for sending information (which may include voice, text message, images etc.) to the group and receiving means ( 102, 112 ) for receiving information from the group, wherein the sending means and the receiving means are configured to provide a direct contact via a radio connection ( 12 ) between at least two network nodes of the group. The invention also proposes a corresponding method, a corresponding network node and network control nodes for assisting in forming temporary groups.
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