Long term evolution base station and wireless resource scheduling method thereof

Patent metadata

Field	Value
Publication number	US-2016157263-A1
Application number	US-201514598815-A
Country	US
Kind code	A1
Filing date	Jan 16, 2015
Priority date	Dec 1, 2014
Publication date	Jun 2, 2016
Grant date	—

Abstract

An LTE base station and a wireless resource scheduling method thereof are provided. The LTE base station receives a transmission period, a tolerable time shift, a start transmission time instant, and a required resource amount from each of a plurality of machine type communication apparatuses. The LTE base station decides a scheduling interval length according to the transmission periods, decides a first scheduling interval according to a start scheduling time instant and the scheduling interval length, and decides a first resource allocation result of the first scheduling interval for the machine type communication apparatuses according to the transmission periods, the tolerable time shifts, the start transmission time instants, and the required resource amounts. The LTE base station further decides a second resource allocation result for the first scheduling interval or a second scheduling interval for the machine type communication apparatuses according to the first resource allocation result.

First claim

What is claimed is:

1 . A Long Term Evolution (LTE) base station, comprising:
a transceiver, being wirelessly connected to a plurality of Machine Type Communication (MTC) apparatuses and configured to receive a transmission period, a tolerable time shift, a start transmission time instant, and a required resource amount from each of the MTC apparatuses; and a processor, being electrically connected to the transceiver and configured to decide a first scheduling interval length according to the transmission periods, decide a first scheduling interval according to a start scheduling time instant and the first scheduling interval length, decide a first resource allocation result of the first scheduling interval for the MTC apparatuses according to the transmission periods, the tolerable time shifts, the start transmission time instants, and the required resource amounts, and decide a second resource allocation result of one of the first scheduling interval and a second scheduling interval for the MTC apparatuses according to the first resource allocation result.

2 . The LTE base station of claim 1 , wherein the processor further determines that the first resource allocation result indicates that a first MTC apparatus among the MTC apparatuses is not allocated any resource and a second MTC apparatus among the MTC apparatuses is allocated resources at least twice, and the second resource allocation result is decided by the processor by re-allocating one of the resources allocated to the second MTC apparatus to the first MTC apparatus.

3 . The LTE base station of claim 2 , wherein the second resource allocation result comprises at least one transmission time instant of each of the MTC apparatuses within the first scheduling interval and the transceiver further transmits each of the at least one transmission time instant to the corresponding MTC apparatus so that each of the MTC apparatuses transmits data within the first scheduling interval according to the corresponding at least one transmission time instant.

4 . The LTE base station of claim 1 , wherein the processor further determines that the first resource allocation result indicates that at least one MTC apparatus included in a first part of the MTC apparatuses are all allocated a resource and at least one MTC apparatus included in a second part of the MTC apparatuses is not allocated any resource, the processor decides a second scheduling interval length according to the at least one transmission period corresponding to the second part, the processor decides the second scheduling interval according to an end-up scheduling time instant of the first scheduling interval, and the processor decides the second resource allocation result of the second scheduling interval for the at least one MTC apparatus included in the second part according to the at least one transmission period, the at least one tolerable time shift, the at least one start transmission time instant, and the at least one required resource amount corresponding to the second part.

5 . The LTE base station of claim 4 , wherein the first resource allocation result comprises at least one first transmission time instant of each of the at least one MTC apparatus included in the first part within the first scheduling interval, the transceiver further transmits each of the at least one first transmission time instant to the corresponding MTC apparatus so that each of the at least one MTC apparatus included in the first part transmits first data in the first scheduling interval according to the corresponding at least one first transmission time instant, the second resource allocation result comprises at least one second transmission time instant of each of the at least one MTC apparatus included in the second part within the second scheduling interval, and the transceiver further transmits each of the at least one second transmission time instant to the corresponding MTC apparatus so that each of the at least one MTC apparatus included in the second part transmits second data in the second scheduling interval according to the corresponding at least one second transmission time instant.

6 . The LTE base station of claim 1 , wherein the processor further determines that the first resource allocation result indicates that at least one MTC apparatus included in a first part of the MTC apparatuses are all allocated a resource and at least one MTC apparatus included in a second part of the MTC apparatuses is not allocated any resource, the processor decides the second scheduling interval according to an end-up scheduling time instant of the first scheduling interval and the first scheduling interval length, and the processor decides the second resource allocation result in the second scheduling interval for the MTC apparatuses according to a scheduling sequence, the transmission periods, the tolerable time shifts, the start transmission time instants, and the required resource amounts, wherein the scheduling sequence indicates that the at least one MTC apparatus included in the second part has a priority over the at least one MTC apparatus included in the first part.

7 . The LTE base station of claim 6 , wherein the first resource allocation result comprises at least one first transmission time instant of each of the at least one MTC apparatus included in the first part within the first scheduling interval, the transceiver further transmits each of the at least one first transmission time instant to the corresponding MTC apparatus so that each of the at least one MTC apparatus included in the first part transmits first data in the first scheduling interval according to the corresponding at least one first transmission time instant, the second resource allocation result comprises at least one second transmission time instant of each of at least one MTC apparatus included in a third part of the MTC apparatuses within the second scheduling interval, and the transceiver further transmits each of the at least one second transmission time instant to the corresponding MTC apparatus so that each of the at least one MTC apparatus included in the third part transmits second data in the second scheduling interval according to the corresponding at least one second transmission time instant, and wherein the third part comprises the second part.

8 . The LTE base station of claim 1 , wherein the processor further determines that the first resource allocation result indicates that a first MTC apparatus among the MTC apparatuses is not allocated any resource and a second MTC apparatus among the MTC apparatuses is allocated resources at least twice, the processor further decides the second scheduling interval according to an end-up scheduling time instant of the first scheduling interval and the first scheduling interval length, the processor further copies the first resource allocation result as the second resource allocation result of the second scheduling interval, and the processor further updates the second resource allocation result by re-allocating one of the resources allocated to the second MTC apparatus in the second resource allocation result to the first MTC apparatus.

9 . The LTE base station of claim 8 , wherein the first resource allocation result comprises at least one first transmission time instant of each of at least one MTC apparatus included in a part of the MTC apparatuses within the first scheduling interval, the transceiver further transmits each of the at least one first transmission time instant to the corresponding MTC apparatus so that each of the at least one MTC apparatus included in the part transmits first data in the first scheduling interval according to the corresponding at least one first transmission time instant, the second resour

Assignees

• Inst Information Industry

Inventors

• Lee Kun Hung

Classifications

• H04W72/535 Primary

  based on resource usage policies · CPC title

• H04W72/1257 Primary

  Electricity · mapped topic

• H04W4/005

  Electricity · mapped topic

• H04W4/70

  Services for machine-to-machine communication [M2M] or machine type communication [MTC] · CPC title

• H04W72/12 Primary

  Wireless traffic scheduling · CPC title