Method and apparatus for configuring a plurality of scheduling request triggers
The invention provides a method and apparatus for configuring a plurality of scheduling request triggers for a user equipment in a communication system. First, the base station determines a plurality of scheduling request triggers and a transmission type of each of the plurality of scheduling request triggers for the user equipment, based on the service characteristics of services of the user equipment; and then the base station transmits configuration information of the plurality of scheduling request triggers to the user equipment, the configuration information of the plurality of scheduling request triggers including the allocation way of the plurality of scheduling request triggers with respect to the services of the user equipment and the transmission type of each of the plurality of scheduling request triggers. The user equipment first receives the configuration information from the base station. After that the user equipment selects a scheduling request trigger corresponding to the current service based on the service characteristics of current service to be transmitted and the allocation way, and transmits the triggered scheduling request via the transmission type corresponding to the scheduling request trigger. By applying the technical solution of the invention, the efficient radio resource utilization could be achieved.
1. A method of configuring a plurality of scheduling request triggers for a user equipment in a base station of a communication system, the method comprising:
determining a plurality of scheduling request triggers and a transmission type of each of the plurality of scheduling request triggers for the user equipment, based on the service characteristics of services of the user equipment;
transmitting configuration information of the plurality of scheduling request triggers to the user equipment, the configuration information of the plurality of scheduling request triggers including the allocation way of the plurality of scheduling request triggers with respect to the services of the user equipment and the transmission type of each of the plurality of scheduling request triggers;
wherein the transmission type of each of the plurality of scheduling request triggers is determined based on the priority of the service corresponding to the scheduling request trigger;
wherein the transmission type is any one of:
transmission on RACH;
transmission on dedicated scheduling request resources; and
wherein when the transmission type is the transmission on RACH, the transmission type includes RACH configuration and the RACH configuration includes physical resources of PRACH.
2. The method of claim 1 , wherein the service characteristics of the services of the user equipment is characterized by any one of:
QoS of bearers of the user equipment;
groups of logical channels;
different types of buffer status reports;
characteristic of the application running.
3. The method of claim 1 , wherein the physical resources allocated to PRACH comprises any one of:
the time resource and the periodicity of RACH;
the group of preambles of RACH.
4. The method of claim 1 , wherein the configuration information is transmitted via a dedicated RRC signaling or a broadcast signaling.
5. The method of claim 1 , wherein the user equipment is a RRC-connected user equipment.
6. The method of claim 1 , wherein the communication system is a LTE communication system.
7. A method of configuring a plurality of scheduling request triggers for a user equipment in a base station of a communication system, the method comprising:
determining a plurality of scheduling request triggers and a transmission type of each of the plurality of scheduling request triggers for the user equipment, based on the service characteristics of services of the user equipment;
transmitting configuration information of the plurality of scheduling request triggers to the user equipment, the configuration information of the plurality of scheduling request triggers including the allocation way of the plurality of scheduling request triggers with respect to the services of the user equipment and the transmission type of each of the plurality of scheduling request triggers;
wherein the transmission type of each of the plurality of scheduling request triggers is determined based on the priority of the service corresponding to the scheduling request trigger;
wherein the transmission type is any one of:
transmission on RACH;
transmission on dedicated scheduling request resources; and
wherein when one service of the user equipment is the service generated by background application, the scheduling request trigger corresponding to the service generated by background application is configured to be transmitted on the dedicated scheduling request resources with large periodicity while the other scheduling request triggers among the plurality of scheduling request triggers are configured to be transmitted on RACH with different RACH configurations.
8. A method of configuring a plurality of scheduling request triggers for a user equipment in a base station of a communication system, the method comprising:
determining a plurality of scheduling request triggers and a transmission type of each of the plurality of scheduling request triggers for the user equipment, based on the service characteristics of services of the user equipment;
transmitting configuration information of the plurality of scheduling request triggers to the user equipment, the configuration information of the plurality of scheduling request triggers including the allocation way of the plurality of scheduling request triggers with respect to the services of the user equipment and the transmission type of each of the plurality of scheduling request triggers;
wherein the transmission type of each of the plurality of scheduling request triggers is determined based on the priority of the service corresponding to the scheduling request trigger;
wherein the transmission type is any one of:
transmission on RACH;
transmission on dedicated scheduling request resources; and
wherein when one service of the user equipment is the service generated by background application, all the plurality of scheduling request triggers are configured to be transmitted on RACH with different RACH configurations.
9. An apparatus for configuring a plurality of scheduling request triggers for a user equipment in a base station of a communication system, the apparatus comprises:
a first unit for determining a plurality of scheduling request triggers and a transmission type of each of the plurality of scheduling request triggers for the user equipment, based on the service characteristics of services of the user equipment;
a second unit for transmitting configuration information of the plurality of scheduling request triggers to the user equipment, the configuration information of the plurality of scheduling request triggers including the allocation way of the plurality of scheduling request triggers with respect to the services of the user equipment and the transmission type of each of the plurality of scheduling request triggers;
wherein the transmission type of each of the plurality of scheduling request triggers is determined based on the priority of the service corresponding to the scheduling request trigger;
wherein the transmission type is any one of:
transmission on RACH;
transmission on dedicated scheduling request resources; and
wherein when the transmission type is the transmission on RACH, the transmission type includes RACH configuration and the RACH configuration includes physical resources of PRACH.