Wireless communication system, wireless communication network, wireless terminal, and wireless communication method
A wireless communication system that enables a wireless terminal to perform communication using a plurality of component carriers having different frequencies. The wireless communication system monitors a communication state of each of the component carriers allocated to the wireless terminal; distributes, to the component carriers, data to be transmitted, based on the communication state of each of the component carriers; starts a reception operation at a predetermined timing in a non-reception period of a second cycle during a discontinuous reception operation at the second cycle in some of the component carriers allocated to the wireless terminal, and performs the reception operation a predetermined number of times, the second cycle being longer than a first cycle.
1. A wireless communication system that enables a wireless terminal to perform communication using a plurality of component carriers having different frequencies, the wireless communication system comprising:
first hardware, including a first processor and a first memory;
wherein the first hardware is configured to implement a monitoring unit that monitors a communication state of each of the component carriers allocated to the wireless terminal,
wherein the first hardware is configured to implement a distribution unit that distributes, to the component carriers, data to be transmitted, based on the communication state of each of the component carriers; and
second hardware, including a second processor and a second memory;
wherein the second hardware is configured to implement a communication processing unit that receives data by each of the component carriers allocated to the wireless terminal, and
wherein the second hardware is configured to implement a communication control unit that causes the communication processing unit to start a reception operation at a predetermined timing in a non-reception period of a second cycle during a discontinuous reception operation at the second cycle in some of the component carriers allocated to the wireless terminal, and to perform the reception operation a predetermined number of times, the second cycle being longer than a first cycle.
2. The wireless communication system according to claim 1 , wherein the communication control unit causes the communication processing unit to start a data reception operation at a timing of the first cycle during the non-reception period of the second cycle.
3. The wireless communication system according to claim 1 , wherein if data is received during the data reception operation performed during the non-reception period of the second cycle by the communication processing unit, the communication control means causes a discontinuous reception operation for the communication processing means to transit from the second cycle to the first cycle.
4. The wireless communication system according to claim 1 , wherein the communication control unit causes the communication processing unit to perform a data reception operation for a certain period at a timing if the non-reception period of the second cycle before the period of the data reception operation is equal to the non-reception period of the second cycle after the period of the data reception operation.
5. The wireless communication system according to claim 1 , wherein the first cycle corresponds to ShortDRX and the second cycle corresponds to LongDRX.
6. A wireless terminal capable of performing communication using a plurality of component carriers having different frequencies, the wireless terminal comprising:
hardware, including a processor and a memory,
wherein the hardware is configured to implement a communication processing unit that receives data by each of the component carriers allocated to the wireless terminal, and
wherein the hardware is configured to implement a communication control unit that causes the communication processing unit to start a reception operation at a predetermined timing in a non-reception period of a second cycle during a discontinuous reception operation at the second cycle in some of the component carriers allocated to the wireless terminal, and to perform the reception operation a predetermined number of times, the second cycle being longer than a first cycle.
7. The wireless terminal according to claim 6 , wherein the communication control unit causes the communication processing unit to start a data reception operation at a timing of the first cycle during the non-reception period of the second cycle.
8. The wireless terminal according to claim 6 , wherein if data is received during the data reception operation performed during the non-reception period of the second cycle by the communication processing unit, the communication control unit causes a discontinuous reception operation for the communication processing unit to transit from the second cycle to the first cycle.
9. The wireless terminal according to claim 6 , wherein the communication control unit causes the communication processing unit to perform a data reception operation for a certain period at a timing if the non-reception period of the second cycle before the period of the data reception operation is equal to the non-reception period of the second cycle after the period of the data reception operation.
10. The wireless terminal according to claim 6 , wherein the first cycle corresponds to ShortDRX and the second cycle corresponds to LongDRX.
11. The wireless terminal according to claim 6 , wherein the second cycle occurs in a different component carrier than the first cycle.
12. The wireless terminal according to claim 6 , wherein the second cycle overlaps with the first cycle in time.
13. The wireless terminal according to claim 6 , wherein the predetermined timing occurs during the non-reception period of the second cycle.