초록 ▼

Methods and apparatus are provided for performing group-based machine-to-machine (M2M) communication. Machine-type communication (MTC) wireless transmit/receive units (WTRUs) may operate in M2M groups. MTC WTRUs belonging to the same M2M group may receive a broadcast message with a time window on a

Methods and apparatus are provided for performing group-based machine-to-machine (M2M) communication. Machine-type communication (MTC) wireless transmit/receive units (WTRUs) may operate in M2M groups. MTC WTRUs belonging to the same M2M group may receive a broadcast message with a time window on a channel dedicated for receiving data directed to an M2M group. The MTC WTRUs may wake up during the time window and may receive data directed to an M2M group on a dedicated channel. The broadcast message may be broadcasted via a broadcast server upon a request from an MTC server. The time window is allocated upon a request from an MTC server on behalf of the M2M group.

대표청구항 ▼

1. A machine-type communication (MTC) server for performing group-based communication, the MTC server comprising: a processor configured to: send a radio resource request for communicating with an MTC group that comprises a plurality of MTC wireless transmit/receive units (WTRUs);receive an indicati

1. A machine-type communication (MTC) server for performing group-based communication, the MTC server comprising: a processor configured to: send a radio resource request for communicating with an MTC group that comprises a plurality of MTC wireless transmit/receive units (WTRUs);receive an indication of radio resources allocated for the MTC group, wherein the radio resources allocated for the MTC group comprises a channel that is dedicated to the MTC group for sending data in an uplink, and the indication of radio resources indicates a time window during which the channel is dedicated to the MTC group for sending data in the uplink;send, to a first MTC WTRU in the MTC group, information indicative of the radio resources allocated for the MTC group and a first time slot within the time window allocated to the first MTC WTRU; andsend, to a second MTC WTRU in the MTC group, information indicative of the radio resources allocated for the MTC group and a second time slot within the time window allocated to the second MTC WTRU. 2. The MTC server of claim 1, wherein the processor is further configured to: allocate the first time slot to the first MTC WTRU in the MTC group for uplink communication; andallocate the second time slot to the second MTC WTRU in the MTC group for uplink communication. 3. The MTC server of claim 1, wherein the processor is further configured to: receive a first data from the first MTC WTRU during the first time slot via the channel that is dedicated to the MTC group; andreceive a second data from the second MTC WTRU during the second time slot via the channel that is dedicated to the MTC group. 4. The MTC server of claim 1, wherein the processor is further configured to: determine an amount of radio resources needed for the MTC group to send the data in the uplink; andinclude an indication of the determined amount of radio resources in the radio resource request. 5. A method for a machine-type communication (MTC) server to perform group-based communication, the method comprising: sending a radio resource request for communicating with an MTC group that comprises a plurality of MTC wireless transmit/receive units (WTRUs);receiving an indication of radio resources allocated for the MTC group, wherein the radio resources allocated for the MTC group comprises a channel that is dedicated to the MTC group for sending data in an uplink, and the indication of radio resources indicates a time window during which the channel is dedicated to the MTC group for sending data in the uplink;sending, to a first MTC WTRU in the MTC group, information indicative of the radio resources allocated for the MTC group and a first time slot within the time window allocated to the first MTC WTRU; andsending, to a second MTC WTRU in the MTC group, information indicative of the radio resources allocated for the MTC group and a second time slot within the time window allocated to the second MTC WTRU. 6. The method of claim 5, further comprising: allocating the first time slot to the first MTC WTRU in the MTC group for uplink communication; andallocating the second time slot to the second MTC WTRU in the MTC group for uplink communication. 7. The method of claim 5, further comprising: receiving a first data from the first MTC WTRU during the first time slot via the channel that is dedicated to the MTC group; andreceiving a second data from the second MTC WTRU during the second time slot via the channel that is dedicated to the MTC group. 8. The method of claim 5, further comprising: determining an amount of radio resources needed for the MTC group to send the data in the uplink; andincluding an indication of the determined amount of radio resources in the radio resource request. 9. A machine-type communication (MTC) server for performing group-based communication, the MTC server comprising: a processor configured to: send, to a core network, a radio resource request associated with an MTC group that comprises a plurality of MTC wireless transmit/receive units (WTRUs);receive an indication of radio resources allocated for the MTC group to receive data via a radio access network, wherein the radio resources allocated for the MTC group is dedicated to the MTC group during a time window; andsend a group message to the MTC WTRUs in the MTC group via the radio resources allocated for the MTC group during the time window. 10. The MTC server of claim 9, wherein the radio resources allocated for the MTC group comprises a channel for the MTC group to receive data directed to the MTC group during the time window. 11. A machine-type communication (MTC) server for performing group-based communication, the MTC server comprising: a processor configured to: send a radio resource request associated with an MTC group that comprises a plurality of MTC wireless transmit/receive units (WTRUs);receive an indication of radio resources allocated for the MTC group to receive data via a radio access network, wherein the radio resources allocated for the MTC group is dedicated to the MTC group during a time window;send, to the MTC WTRUs in the MTC group, information indicative of the time window and the radio resources allocated for the MTC group; andsend a group message to the MTC WTRUs in the MTC group via the radio resources allocated for the MTC group during the time window. 12. The MTC server of claim 11, wherein the radio resources allocated for the MTC group comprises a channel for the MTC group to receive data directed to the MTC group during the time window. 13. The MTC server of claim 11, wherein the radio resource request is sent to a core network. 14. A method for a machine-type communication (MTC) server to perform group-based communication, the method comprising: sending, to a core network, a radio resource request associated with an MTC group that comprises a plurality of MTC wireless transmit/receive units (WTRUs);receiving an indication of radio resources allocated for the MTC group to receive data via a radio access network, wherein the radio resources allocated for the MTC group is dedicated to the MTC group during a time window; andsending a group message to the MTC WTRUs in the MTC group via the radio resources allocated for the MTC group during the time window. 15. The method of claim 14, wherein the radio resources allocated for the MTC group comprises a channel for the MTC group to receive data directed to the MTC group during the time window. 16. A method for a machine-type communication (MTC) server to perform group-based communication, the method comprising: sending a radio resource request associated with an MTC group that comprises a plurality of MTC wireless transmit/receive units (WTRUs);receiving an indication of radio resources allocated for the MTC group to receive data via a radio access network, wherein the radio resources allocated for the MTC group is dedicated to the MTC group during a time window;sending, to the MTC WTRUs in the MTC group, information indicative of the time window and the radio resources allocated for the MTC group; andsending a group message to the MTC WTRUs in the MTC group via the radio resources allocated for the MTC group during the time window. 17. The method of claim 16, wherein the radio resources allocated for the MTC group comprises a channel for the MTC group to receive data directed to the MTC group during the time window. 18. The method of claim 16, wherein the radio resource request is sent to a core network.