Method and apparatus for configuring frequency hopping pattern for MTC UE in wireless communication system

• US 10,615,842 B2
• Filed: 07/17/2019
• Issued: 04/07/2020
• Est. Priority Date: 03/31/2015
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Yi, Yunjung
• Primary Examiner(s): Malek, Leila
• Application Number:
  US16/514,161
• Publication Number:
  US 20190341962A1
• Time in Patent Office: 265 Days
• Field of Search: 375132
• CPC Class Codes: H04B 1/707 using direct sequence modulation
• CPC Class Codes: H04B 1/713 using frequency hopping
• CPC Class Codes: H04B 1/7136 Arrangements for generation of hop frequencies, e.g. using a bank of frequency sources, using continuous tuning or using a transform
• CPC Class Codes: H04L 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04L 5/0012 Hopping in multicarrier systems for frequency hopping in spread spectrum systems H04B1/713
• CPC Class Codes: H04L 5/003 Arrangements for allocating sub-channels of the transmission path
• 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 72/20 Control channels or signalling for resource management

Abstract

A method and apparatus for transmitting data to a machine type communication user equipment (MTC UE) in a wireless communication system is provided. A base station (BS) configures a frequency hopping in every specific number of subframes which corresponds to a frequency hopping granularity, and transmits data to the MTC UE by using the configured frequency hopping.

Claims

1. A method performed by a user equipment (UE) in a wireless communication system, the method comprising:

receiving a frequency hopping configuration including information on frequency hopping granularity; and

receiving a physical downlink shared channel (PDSCH), for which a frequency hopping is enabled, based on the frequency hopping granularity,

wherein the frequency hopping granularity is configured based on coverage enhancement (CE) level of the UE.

2. The method of claim 1, wherein the UE is a bandwidth reduced low complexity (BL) UE.

3. The method of claim 1, wherein the frequency hopping is configured in every specific number of subframes.

4. The method of claim 1, wherein a change in a frequency location of the PDSCH by the frequency hopping is related to the frequency hopping granularity.

5. The method of claim 1, wherein a location of a channel by the frequency hopping is determined by at least one of a subframe number or a frame number.

6. The method of claim 1, wherein the frequency hopping is configured by a fixed offset.

7. The method of claim 1, wherein the frequency hopping is configured over either two narrowbands or four narrowbands.

8. The method of claim 7, wherein whether the frequency hopping is configured over either two narrowbands or four narrowbands is configured via a master information block (MIB) or a system information block (SIB).

9. The method of claim 1, wherein the frequency hopping granularity is configured by cell specifically, and wherein the receiving PDSCH includes receiving paging or system information.

10. The method of claim 1, wherein a frequency location of the PDSCH is switched based on the frequency hopping in every specific number of subframes.

11. A user equipment (UE) in a wireless communication system, the UE comprising:

a memory;

a transceiver; and

a processor coupled to the memory and the transceiver,

wherein the processor is configured to;

control the transceiver to receive a frequency hopping configuration including information on frequency hopping granularity; and

control the transceiver to receive a physical downlink shared channel (PDSCH), for which a frequency hopping is enabled, based on the frequency hopping granularity,

wherein the frequency hopping granularity is configured based on coverage enhancement (CE) level of the UE.

12. The UE of claim 11, wherein the UE is a bandwidth reduced low complexity (BL) UE.

13. The UE of claim 11, wherein the frequency hopping is configured in every specific number of subframes.

14. The method of claim 11, wherein a change in a frequency location of the PDSCH by the frequency hopping is related to the frequency hopping granularity.

15. A processor for a wireless communication device in a wireless communication system,

wherein the processor is configured to control the wireless communication device to:

control a transceiver to receive a frequency hopping configuration including information on frequency hopping granularity; and

control the transceiver to receive a physical downlink shared channel (PDSCH), for which a frequency hopping is enabled, based on the frequency hopping granularity,

wherein the frequency hopping granularity is configured based on coverage enhancement (CE) level of the UE.