Wireless network with a concealed network node

• US 6,785,253 B1
• Filed: 05/10/2000
• Issued: 08/31/2004
• Est. Priority Date: 05/12/1999
• Status: Expired due to Term

• Current Assignee: US Philips Corporation (Koninklijke Philips N.V.)
• Original Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Inventors: Du, Yonggang
• Primary Examiner(s): HO, DUC CHI
• Application Number:
  US09/568,279
• Time in Patent Office: 1,574 Days
• Field of Search: 370/254, 370/310, 370/328, 370/338, 370/349, 370/350, 370/400, 370/422, 370/420, 370/463, 370/512, 455/3.01, 455/502, 709/232, 709/238, 709/245, 375/356
• US Class Current: 370/338
• CPC Class Codes: H04B 7/2606 Arrangements for base station coverage control, e.g. by using relays in tunnels
• CPC Class Codes: H04B 7/2678 Time synchronisation
• CPC Class Codes: H04W 56/0015 one node acting as a reference for the others
• CPC Class Codes: H04W 88/04 adapted for relaying to or from another terminal or user

Abstract

The invention relates to a wireless network with several network nodes which each comprise a radio device and of which one forms a transfer network node which is designed for the transmission of data between at least one concealed network node and all other network nodes. One of the network nodes forms a central network node for the control of the radio traffic. The central network node is designed for transmitting frame synchronization data for the formation of frames used in each radio device. The transfer network node serves for the exchange of certain data of the central network node with the concealed network node. The central network node is designed to carry out the exchange of the data between the transfer network node and concealed network nodes as regards the assignation of a sub-frame lying within a frame.

Claims

1. A wireless network with several network nodes which each comprise a radio device, one of said nodes forming a transfer network node which is designed for the transmission of data between at least one concealed network node and all other network nodes, wherein one of the network nodes forms a central network node for controlling the radio traffic, in that the central network node is designed for transmitting frame synchronization data for forming frames which are used in each radio device, in that the transfer network node is designed for exchanging certain data of the central network node with the concealed network node, and

in that the central network node is designed for assigning a sub-frame present in a frame for the exchange of the data between the transfer network node and concealed network nodes, wherein the central network node is designed for transmitting frame synchronization data during a first phase of the frame and for transmitting control data during a second phase of the frame, and

in that the transfer network node is designed for transmitting the frame synchronization data received from the central network node during a first phase of the sub-frame, and for transmitting certain control data received from the central network node during a second phase of the frame.

2. A wireless network as claimed in claim 1, wherein the central network node is designed for transmitting payload data to at least one other network node during a third phase of the frame, in that the transfer network node is designed for exchanging data with the concealed network node during a fourth and/or fifth phase of the frame, and

in that during the fourth phase of the frame not occupied by the sub-frame other network nodes are designed for exchanging payload data with one another, and during the fifth phase not occupied by the sub-frame at least one other network node is designed for transmitting payload data to the central network node.

3. A wireless network as claimed in claim 1, wherein before a concealed network node is included into the wireless network, the concealed network node is designed for receiving a message on an inclusion request of the concealed network node.

4. A wireless network as claimed in claim 1, wherein after a concealed network node has been included into the wireless network, the transfer network node is designed for transmitting payload data during a third phase of the sub-frame and for receiving control and/or payload data of the concealed network node during a fourth phase of the sub-frame.

5. A method for the wireless transmission of data between several network nodes which each comprise a radio device, one of said network nodes forming a transfer network node which transmits data between at least one concealed network node and all other network nodes, wherein one of the network nodes acting as a central network node controls the radio traffic and transmits frame synchronization data from which frames are formed in each radio device, in that the transfer network node exchanges certain data of the central network node with the concealed network node, and in that the central network node assigns a sub-frame lying within a frame for the exchange of the data between the transfer network node and concealed network nodes, wherein the central network node is designed for transmitting frame synchronization data during a first phase of the frame and for transmitting control data during a second phase of the frame, and in that the transfer network node is designed for transmitting the frame synchronization data received from the central network node during a first phase of the sub-frame, and for transmitting certain control data received from the central network node during a second phase of the frame.