Method and apparatus for forwarding multi-hop and MACdata structure for the method
First Claim
1. A method of forwarding a multi-hop in a system having an access point, a first mobile terminal that is incapable of communicating directly with the access point, and a second mobile terminal that is capable of communicating directly with the access point, the method comprising:
- (a) transmitting data of the first mobile terminal to the second mobile terminal while the access point is transmitting or receiving data to or from a mobile terminal located in a sector beyond a sector to which the second mobile terminal belongs;
(b) the second mobile terminal transmitting data of the first mobile terminal to the access point by an existing transmission and reception method; and
(c) the access point receiving the data of the first mobile terminal.
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Abstract
A method of forwarding a multi-hop data by which a multi-hop data frame having multi-hop information is processed, includes a mobile terminal for performing the method, and a medium access control (MAC) data structure having a multi-hop frame, which is used in the method. In the method, information is forwarded via one or more mobile terminals or a pre-installed seed to an access point, thereby allowing coverage of an access point to be extended. As a result, a communication system may be economically established, and waste of frequency resources may be reduced.
25 Citations
9 Claims
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1. A method of forwarding a multi-hop in a system having an access point, a first mobile terminal that is incapable of communicating directly with the access point, and a second mobile terminal that is capable of communicating directly with the access point, the method comprising:
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(a) transmitting data of the first mobile terminal to the second mobile terminal while the access point is transmitting or receiving data to or from a mobile terminal located in a sector beyond a sector to which the second mobile terminal belongs;
(b) the second mobile terminal transmitting data of the first mobile terminal to the access point by an existing transmission and reception method; and
(c) the access point receiving the data of the first mobile terminal. - View Dependent Claims (2, 3, 5)
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4. A method of forwarding a multi-hop in a system having an access point, a first mobile terminal that is incapable of communicating directly with the access point, and a second mobile terminal that is capable of communicating directly with the access point, the method comprising:
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(a) the access point transmitting data of the first mobile terminal to the second mobile terminal by an existing transmission and reception method;
(b) the second mobile terminal transmitting data to the first mobile terminal while the access point is transmitting or receiving data to or from a mobile terminal located in a sector beyond a sector to which the second mobile terminal belongs; and
(c) the first mobile terminal receiving the data transmitted in (b).
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6. A mobile terminal for forwarding a multi-hop, the mobile terminal comprising:
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a communication channel setter which sets up a channel for communication with a first mobile terminal that is incapable of communicating directly with an access point;
a state determiner which determines whether the access point is transmitting or receiving data to or from a mobile terminal located in a sector beyond a sector to which a second mobile terminal belongs; and
a multi-hop data transmitter which transmits and receives data of the first mobile terminal to and from the second mobile terminal if it is determined that the access point is transmitting or receiving data to or from the mobile terminal located in the sector beyond the sector to which the second mobile sector belongs.
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7. A computer-readable recording medium on which a medium access control data structure is recorded, the medium access control data structure being used when a mobile terminal that is incapable of communicating directly with an access point communicates with the access point via another mobile terminal, the medium access control data structure comprising:
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a broadcast channel information value which broadcasts control information corresponding to a current medium access control frame;
a frame channel information value which stores frame control channel information that defines how resources of a system are assigned to a current medium access frame;
an access feedback channel information value which stores results obtained when a previous medium access control frame is randomly accessed;
a down-data value which is transmitted from an access point to a mobile terminal;
a first multi-hop data value which is transmitted from a mobile terminal that is incapable of communicating directly with the access point;
an up-data value which is transmitted from a mobile terminal to the access point;
a second multi-hop data value which is transmitted from the mobile terminal that is incapable of communicating directly with the access point; and
a random channel value through which a mobile terminal transmits control information to the access point when a short transport channel is unavailable. - View Dependent Claims (8, 9)
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Specification