METHOD AND APPARATUS FOR IMPROVING LOW-COST MTC (MACHINE-TYPE COMMUNICATION) DEVICES IN A WIRELESS COMMUNICATION SYSTEM

• US 20170111756A1
• Filed: 12/22/2016
• Published: 04/20/2017
• Est. Priority Date: 11/14/2011
• Status: Abandoned Application

• Current Assignee: Innovative Sonic Limited
• Original Assignee: Innovative Sonic Limited
• Inventors: Guo, Yu-Hsuan, Ou, Meng-Hui, Lin, Ko-Chiang
• Application Number:
  US15/388,129
• Publication Number:
  US 20170111756A1
• Time in Patent Office: Days
• CPC Class Codes: H04W 36/00835 Determination of neighbour cell lists
• CPC Class Codes: H04W 4/70 Services for machine-to-machine communication [M2M] or machine type communication [MTC]
• CPC Class Codes: H04W 48/12 using downlink control channel
• CPC Class Codes: H04W 48/16 Discovering, processing access restriction or access information

Abstract

A method and apparatus are disclosed for improving low-cost MTC (Machine-Type Communication) devices in a wireless communication system. The method includes broadcasting, in a system information, a first information used for cell re-selection. The method further includes providing a second information, for a neighboring cell or a frequency, that is used for cell re-selection.

Claims

1. A method for improving cell re-selection in a wireless communication system, comprising:

broadcasting a first information and a second information in a system information,

wherein the first information is used for cell re-selection performed by a first User Equipment (UE) without reduction in supported bandwidth, the second information is used for cell re-selection performed by a second UE with reduction in supported bandwidth, and the second information includes a list of neighboring cells supporting a second UE.

2. The method of claim 1, wherein bandwidth supported by the second UE is reduced compared with bandwidth supported by the first UE.

3. The method of claim 1, wherein the first UE supports 20 MHz bandwidth and the second UE supports a largest bandwidth less than 20 MHz.

4. The method of claim 1, wherein the second information includes a list of frequencies that have a cell supporting the second UE.

5. The method of claim 1, wherein the first information and the second information are in different system information block types of the system information.

6. The method of claim 1, wherein the neighboring cells are intra-frequency neighboring cells.

7. The method of claim 1, wherein the neighboring cells are inter-frequency neighboring cells.

8. The method of claim 1, wherein the cell re-selection is performed when the first UE or the second UE is in idle mode.

9. The method of claim 1, wherein the first information includes a list of neighboring cells supporting the first UE.

10. The method of claim 1, wherein the first information includes a list of frequencies that have a cell supporting the first UE.

11. A communication device for improving cell re-selection in a wireless communication system, the communication device comprising:

a control circuit;

a processor installed in the control circuit;

a memory installed in the control circuit and operatively coupled to the processor;

wherein the processor is configured to execute a program code stored in memory to improve cell re-selection by;

broadcasting a first information and a second information in a system information, wherein the first information is used for cell re-selection performed by a first User Equipment (UE) without reduction in supported bandwidth, the second information is used for cell re-selection performed by a second UE with reduction in supported bandwidth, and the second information includes a list of neighboring cells supporting the second UE.

12. The communication device of claim 11, wherein bandwidth supported by the second UE is reduced compared with bandwidth supported by the first UE.

13. The communication device of claim 11, wherein the first UE supports 20 MHz bandwidth and the second UE supports a largest bandwidth less than 20 MHz.

14. The communication device of claim 11, wherein the second information includes a list of frequencies that have a cell supporting the second UE.

15. The communication device of claim 11, wherein the first information and the second information are in different system information block types of the system information.

16. The communication device of claim 11, wherein the neighboring cells are intra-frequency neighboring cells.

17. The communication device of claim 11, wherein the neighboring cells are inter-frequency neighboring cells.

18. The communication device of claim 11, wherein the cell re-selection is performed when the first UE or the second UE is in idle mode.

19. The communication device of claim 11, wherein the first information includes a list of neighboring cells supporting the first UE.

20. The communication device of claim 11, wherein the first information includes a list of frequencies that have a cell supporting the first UE.