Wireless communication method and apparatus for reporting traffic volume measurement information to support enhanced uplink data transmissions
View Patent ↗A wireless communication method and apparatus for reporting traffic volume measurement (TVM) information used to support enhanced uplink (EU) data transmissions between a wireless transmit/receive unit (WTRU), i.e., a mobile station, and a Node-B. After storing EU data in a buffer, the WTRU sends an initial TVM information request message to the Node-B indicating that the WTRU has EU data available to send to the Node-B. In response, the Node-B schedules one or more allowed EU data transmissions. The WTRU transmits at least a portion of the stored EU data to the Node-B via the allowed EU data transmissions. In one embodiment, the initial TVM information request message is sent by the WTRU only after the quantity of EU data stored in the buffer of the WTRU exceeds an established threshold. Otherwise, all of the stored EU data is transferred to the Node-B without requiring scheduling by the Node-B.
1. A method for use by a frequency division duplex wideband code division multiple access user equipment (UE) for enhanced uplink (EU) transmission, comprising:
when the UE is not scheduled for EU transmission:
allowing the UE to transmit EU data up to a predetermined threshold without being scheduled for EU transmission;
triggering transmission of a scheduling request message when a quantity of stored EU data exceeds the predetermined threshold, the scheduling request message being multiplexed with EU medium access control (MAC) data and the scheduling request message indicating a total amount of EU data in the buffer and an amount of data associated with a logical channel and priority information associated with the logical channel;
receiving information to schedule EU transmissions;
transmitting EU data in response to the received EU transmission scheduling information over an EU channel; and
when the UE is scheduled for EU transmission:
transmitting an updated scheduling request message multiplexed with EU MAC data over an EU channel when EU data is in the buffer for transmission.
2. The method of claim 1 wherein the scheduling request message includes EU traffic volume measurement information.
3. The method of claim 1 wherein the predetermined threshold is equal to zero.
4. A frequency division duplex wideband code division multiple access user equipment (UE) comprising:
a buffer configured to receive enhanced uplink (EU) data for transmission, the EU data associated with logical channels; wherein:
the UE configured when the UE is not scheduled for EU transmission to:
transmit EU data up to a predetermined threshold without being scheduled for EU transmission and trigger transmission of a scheduling request message when a quantity of stored EU data exceeds the predetermined threshold, the scheduling request message being multiplexed with EU medium access control (MAC) data and the scheduling request message indicating a total amount of EU data in the buffer and an amount of data associated with a logical channel and priority information associated with the logical channel;
receive information to schedule EU transmission and to transmit EU data in response to the received EU transmission scheduling information over an EU channel; and
transmit an updated scheduling request message multiplexed with EU MAC data over an EU channel when the UE is scheduled for transmission and EU data is in the buffer for transmission.
5. The UE of claim 4 wherein the scheduling request message includes EU traffic volume measurement information.
6. The UE of claim 4 wherein the predetermined threshold is equal to zero.
7. A frequency division duplex wideband code division multiple access user equipment (UE) comprising:
a buffer configured to receive enhanced uplink (EU) data for transmission, the EU data associated with logical channels;
a transmitting device configured when the UE is not scheduled for EU transmission to:
transmit EU data up to a predetermined threshold without being scheduled for EU transmission and trigger transmission of a scheduling request message when a quantity of stored EU data exceeds the predetermined threshold, the scheduling request message being multiplexed with EU medium access control (MAC) data and the scheduling request message indicating a total amount of EU data in the buffer and an amount of data associated with a logical channel and priority information associated with the logical channel;
a receiving device configured to receive information to schedule EU transmission and to transmit EU data in response to the received EU transmission scheduling information over an EU channel; and
the transmitting device configured to transmit an updated scheduling request message multiplexed with EU MAC data over an EU channel when the UE is scheduled for transmission and EU data is in the buffer for transmission.
8. The UE of claim 7 wherein the scheduling request message includes EU traffic volume measurement information.
9. The UE of claim 7 wherein the predetermined threshold is equal to zero.