METHOD AND APPARATUS FOR HANDLING VARIOUS IOT NETWORK ACCESS IN WIRELESS COMMUNICATION SYSTEM

• US 20190044690A1
• Filed: 09/26/2016
• Published: 02/07/2019
• Est. Priority Date: 09/24/2015
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: YI, Yunjung, KIM, Bonghoe, KIM, Kijun, KIM, Byounghoon, KO, Hyunsoo
• Granted Patent: US 10,868,658 B2
• Time in Patent Office: Days
• CPC Class Codes: H04L 12/189 in combination with wireless systems selective distribution or broadcast in wireless communication networks H04W4/06
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/14 Two-way operation using the same type of signal, i.e. duplex
• CPC Class Codes: H04L 5/1469 using time-sharing
• CPC Class Codes: H04W 4/70 Services for machine-to-machine communication [M2M] or machine type communication [MTC]
• CPC Class Codes: H04W 72/0446 Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

A method and apparatus for transmitting information in a wireless communication system is provided. A base station (BS) determines downlink (DL) subframes according to a number of supported time division duplex (TDD) configurations, and transmits at least one of synchronization signals or a physical broadcast channel (PBCH) to an internet-of-things (IoT) user equipment (UE) via the DL subframes.

Claims

1. A method for transmitting information by a base station (BS) in a wireless communication system, the method comprising:

determining downlink (DL) subframes according to a number of supported time division duplex (TDD) configurations; and

transmitting at least one of synchronization signals or a physical broadcast channel (PBCH) to an internet-of-things (IoT) user equipment (UE) via the DL subframes.

2. The method of claim 1, wherein all TDD configurations are supported.

3. The method of claim 2, wherein if multicast-broadcast single-frequency network (MBSFN) capable subframes are used, the DL subframes correspond to subframes #0, #1, #5 and #6.

4. The method of claim 2, wherein if MBSFN capable subframes are not used, the DL subframes correspond to subframes #0 and #5.

5. The method of claim 1, wherein only partial TDD configurations are supported.

6. The method of claim 5, wherein if MBSFN capable subframes are used, the DL subframes correspond to subframes #0, #1, #4, #5, #6 and #9.

7. The method of claim 5 wherein if MBSFN capable subframes are not used, the DL subframes correspond to subframes #0, #4, #5 and #9.

8. The method of claim 1, wherein a first narrowband for transmission of the synchronization signals and a second narrowband for transmission of the PBCH are different from each other.

9. The method of claim 8, wherein locations of the first narrowband and the second narrowband are fixed.

10. The method of claim 1, wherein transmission of the synchronization signals or the PBCH occupies consecutive subframe.

11. A base station (BS) in a wireless communication system, the BS comprising:

a memory;

a transceiver; and

a processor, coupled to the memory and the transceiver, that;

determines downlink (DL) subframes according to a number of supported time division duplex (TDD) configurations, and controls the transceiver to transmit at least one of synchronization signals or a physical broadcast channel (PBCH) to an internet-of-things (IoT) user equipment (UE) via the DL subframes.

12. The BS of claim 11, wherein all TDD configurations are supported.

13. The BS of claim 11, wherein only partial TDD configurations are supported.