Wireless communication method and system for configuring radio access bearers for enhanced uplink services
A wireless communication method and system for controlling an enhanced uplink (EU) radio access bearer (RAB). The wireless communication system includes at least one wireless transmit/receive unit (WTRU), at least one Node-B and a radio network controller (RNC). The RNC configures an EU RAB to operate on an enhanced dedicated channel (E-DCH). At least one of the WTRU and the Node-B report EU traffic statistics and EU performance statistics to the RNC. The RNC then adjusts the configuration of the EU RAB in accordance with the received EU traffic statistics, the EU performance statistics, and information collected by the RNC itself.
1. A method to configure a wireless transmit/receive unit (WTRU) to support enhanced uplink (EU) services, implemented in a WTRU, comprising:
receiving at least one control signal for configuring the WTRU;
configuring parameters for each of a plurality of medium access control for dedicated channel (MAC-d) flows based on the received at least one control signal, wherein the parameters include, for each MAC-d flow, a maximum number of hybrid automatic repeat request (H-ARQ) transmissions associated with the MAC-d flow;
multiplexing a plurality of MAC-d flows for transmission over an enhanced dedicated channel (E-DCH) transport channel (TrCH);
selecting one maximum number of H-ARQ transmissions parameter to use for transmission of the multiplexed MAC-d flows;
transmitting the multiplexed MAC-d flows over the E-DCH TrCH;
determining whether the selected maximum number of H-ARQ transmissions parameter is exceeded; and
discarding the multiplexed MAC-d flows on a condition that the selected maximum number of H-ARQ transmissions parameter is exceeded.
2. The method of claim 1 , further comprising:
reporting EU traffic statistics, wherein the EU traffic statistics include a volume of EU data;
receiving a further control signal in response to the reported EU traffic statistics; and
configuring the WTRU based on the received further control signal.
3. The method of claim 1 , further comprising:
generating periodic channel allocation requests to transmit enhanced dedicated channel (E-DCH) data.
4. The method of claim 1 wherein the at least one control signal includes a maximum allowed transmit power.
5. The method of claim 1 wherein a maximum number of H-ARQ transmissions parameter associated with at least one multiplexed MAC-d flow is different than a maximum number of H-ARQ transmissions parameter associated with at least one other multiplexed MAC-d flow.
6. The method of 1 wherein the at least one control signal is received via radio resource control (RRC) signaling.
7. The method of claim 1 wherein the at least one control signal is received from a radio network controller (RNC).
8. The method of claim 1 wherein the maximum number of H-ARQ transmissions parameter associated with each MAC-d flow is associated with a quality of service (QoS).
9. The method of claim 1 wherein the selected maximum number of H-ARQ transmissions parameter is associated with a multiplexed MAC-d flow.
10. A wireless transmit/receive unit (WTRU) configured to support enhanced uplink (EU) services comprising:
circuitry configured to receive at least one control signal for configuring the WTRU;
circuitry configured to configure parameters for each of a plurality of medium access control for dedicated channel (MAC-d) flows based on the received at least one control signal, wherein the parameters include, for each MAC-d flow, a maximum number of hybrid automatic repeat request (H-ARQ) transmissions associated with the MAC-d flow;
circuitry configured to multiplex a plurality of MAC-d flows for transmission over an enhanced dedicated channel (E-DCH) transport channel (TrCH);
circuitry configured to select one maximum number of H-ARQ transmissions parameter to use for transmission of the multiplexed MAC-d flows;
circuitry configured to transmit the multiplexed MAC-d flows over the E-DCH TrCH;
circuitry configured to determine whether the selected maximum number of H-ARQ transmissions parameter is exceeded; and
circuitry configured to discard the multiplexed MAC-d flows on a condition that the selected maximum number of H-ARQ transmissions parameter is exceeded.
11. The WTRU of claim 10 , further comprising:
circuitry configured to report EU traffic statistics, wherein the EU traffic statistics include a volume of EU data;
circuitry configured to receive a further control signal in response to the reported EU traffic statistics; and
circuitry configured to configure the WTRU based on the received further control signal.
12. The WTRU of claim 10 , further comprising:
circuitry configured to generate periodic channel allocation requests to transmit enhanced dedicated channel (E-DCH) data.
13. The WTRU of claim 10 wherein the at least one control signal includes a maximum allowed transmit power.
14. The WTRU of claim 10 wherein a maximum number of H-ARQ transmissions parameter associated with at least one multiplexed MAC-d flow is different than a maximum number of H-ARQ transmissions parameter associated with at least one other multiplexed MAC-d flow.
15. The WTRU of claim 10 wherein the at least one control signal is received via radio resource control (RRC) signaling.
16. The WTRU of claim 10 wherein the at least one control signal is received from a radio network controller (RNC).
17. The WTRU of claim 10 wherein the maximum number of H-ARQ transmissions parameter associated with each MAC-d flow is associated with a quality of service (QoS).
18. The WTRU of claim 10 wherein the selected maximum number of H-ARQ transmissions parameter is associated with a multiplexed MAC-d flow.