Wireless data frame structure among nodes

• US 8,116,256 B2
• Filed: 07/31/2007
• Issued: 02/14/2012
• Est. Priority Date: 08/18/2006
• Status: Expired due to Fees

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: Zhu, Chenxi, Chen, Wei-Peng, Agre, Jonathan
• Primary Examiner(s): Pham, Chi
• Assistant Examiner(s): BOAKYE, ALEXANDER O
• Application Number:
  US11/831,108
• Publication Number:
  US 20080186950A1
• Time in Patent Office: 1,659 Days
• Field of Search: 370/324, 370/329, 370/322, 370/330, 370/350, 370/503, 370/315, 370/316, 370/331, 370/509, 455/436, 455/442, 455/452.1, 455/450, 455/464, 375/364
• US Class Current: 370/324
• CPC Class Codes: H04B 7/2606 Arrangements for base station coverage control, e.g. by using relays in tunnels
• CPC Class Codes: H04W 16/26 Cell enhancers or enhancement, e.g. for tunnels, building shadow
• CPC Class Codes: H04W 56/0085 detecting a given structure in the signal
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management
• CPC Class Codes: H04W 84/047 using dedicated repeater stations
• CPC Class Codes: H04W 92/16 Interfaces between hierarchically similar devices

Abstract

The embodiments provide transmitting at same time first and relay second node preambles aligning data frames among the first node and the relay second node wirelessly communicating in a channel and transmitting by the first node one or more radio resource control parameters managing radio resources of the wireless communicating in the channel among the aligned first node and the relay second node. A relay resynchronization amble sequence managing synchronizing in the channel the first node frames with the relay second node frames is periodically transmitted to the relay second node.

Claims

1. A method, comprising:

transmitting at same time a first node and a relay second node preambles aligning data frames of the first node and the relay second node, the first node and the relay second node to one or more third nodes all wirelessly communicating in a single channel;

specifying radio resource control parameters managing radio resources of the wireless communication in the single channel among the aligned first node and the relay second node to the third nodes; and

periodically transmitting to the relay second node a relay resynchronization amble sequence managing the aligning in the single channel of the first node frames and the relay second node frames.

2. The method according to claim 1, wherein the radio resource control parameter comprises presence and/or a location of the relay second node resynchronization amble sequence in a next wireless communication link data frame, an index of a plurality of the relay second node resynchronization amble sequences, a burst profile of a next radio resource control parameter, a down link transmission to the relay second node in a next data frame, an uplink transmission from the relay second node to the first node in a next data frame, downlink and/or uplink radio resources of the relay second node to the third nodes in the single channel, or any combinations thereof.

3. The method according to claim 1, wherein the radio resource control parameter specifies downlink and/or uplink channel portion assignment of the relay second node to the third nodes in the single channel, and

the method further comprises managing by the relay second node a communication schedule to the third nodes according to the channel portion assignment.

4. The method according to claim 1, wherein the radio resource control parameter is transmitted at end of a wireless communication link frame.

5. The method according to claim 3, wherein the relay second node resynchronization amble sequence is transmitted after the radio resource control parameter.

6. The method according to claim 1, wherein the radio resource control parameter includes the relay second node resynchronization amble sequence.

7. The method of claim 1, wherein the first node dynamically specifies the radio resource control parameters.

8. The method of claim 1, wherein the radio resource control parameter specifies a transceiving mode switch time in the single channel for the relay second node, based upon radio resource requirements on downlink and/or uplink communication links among the first node and the relay second node to the third nodes.

9. The method according to claim 1,

wherein the radio resource control parameter specifies downlink and/or uplink channel portion assignment among the first node and the relay second node to the third nodes in the single channel, and

the method further comprises:

managing by the first node and/or the relay second node a communication schedule to the relay second node and/or the third nodes in the assigned channel according to the channel portion assignment; and

specifying the radio resource control parameter by the first node, the relay second node, or any combination thereof.

10. The method according to claim 9, wherein the radio resource control parameter comprises presence and/or a location of the relay second node resynchronization amble sequence in a next wireless communication link data frame, an index of a plurality of the relay second node resynchronization amble sequences, a burst profile of a next radio resource control parameter, a down link transmission to the relay second node in a next data frame, an uplink transmission from the relay second node to the first node in a next data frame, downlink and/or uplink radio resources of the relay second node to the third nodes in the single channel, a transceiving mode switch time in the single channel for the relay second node, or any combinations thereof.

11. The method of claim 1, wherein the nodes wirelessly communicate according to orthogonal frequency-division multiple access (OFDMA) system using one or more sets of subcarriers in the single channel.

12. An apparatus as a first node in wireless communication in a single channel with a relay second node to one or more third nodes, comprising:

a controller

controlling transmission at same time first and relay second node preambles aligning data frames among the first node and the relay second node wirelessly communicating in the single channel;

transmitting by the first node one or more radio resource control parameters managing radio resources of the wireless communicating in the single channel among the aligned first node and the relay second node to the third nodes; and

periodically transmitting to the relay second node a relay resynchronization amble sequence managing synchronizing in the single channel the relay second node frames with the first node frames.

13. The apparatus according to claim 12, wherein the radio resource control parameter comprises presence and/or a location of the relay second node resynchronization amble sequence in a next wireless communication link data frame, an index of a plurality of the relay second node resynchronization amble sequences, a burst profile of a next radio resource control parameter, a down link transmission to the relay second node in a next data frame, an uplink transmission from the relay second node to the first node in a next data frame, downlink and/or uplink radio resources of the relay second node to the third nodes in the single channel, or any combinations thereof.

14. The apparatus according to claim 13, wherein the radio resource control parameter specifies downlink and/or uplink channel portion assignment of the relay second node to the third nodes in the single channel.

15. The apparatus according to claim 13, wherein the radio resource control parameter is transmitted near end of a wireless communication link data frame.

16. The apparatus according to claim 14, wherein the relay second node resynchronization amble sequence is transmitted after the radio resource control parameter.

17. The apparatus according to claim 13, wherein the radio resource control parameter includes the relay second node resynchronization amble sequence.

18. The apparatus of claim 13, wherein the controller dynamically specifies and transmits the radio resource control parameters.

19. The apparatus of claim 13, wherein the controller wirelessly communicates with the second relay node to the third nodes and/or directly with the third nodes in a WiMAX Mobile Multi-hop Relay-Based Cell (MMR-Cell) and the first node is a base station and the third nodes are user mobile stations.

20. The apparatus of claim 19, wherein the controller wireless communicates according to orthogonal frequency-division multiple access (OFDMA) system using one or more sets of subcarriers in the single channel.