METHOD AND APPARATUS FOR SUPPORTING BANDWIDTH PART SWITCHING IN WIRELESS COMMUNICATION SYSTEM

• US 20200136878A1
• Filed: 07/12/2018
• Published: 04/30/2020
• Est. Priority Date: 07/12/2017
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: YI, Yunjung, SONG, Huayue, HWANG, Daesung, SEO, Inkwon
• Granted Patent: US 11,277,294 B2
• Time in Patent Office: Days
• CPC Class Codes: H04L 27/26025 Numerology, i.e. varying one or more of symbol duration, subcarrier spacing, Fourier transform size, sampling rate or down-clocking allocating sub-channels of the transmission path H04L5/003
• CPC Class Codes: H04L 27/2613 Structure of the reference signals
• CPC Class Codes: H04L 27/2657 Carrier synchronisation
• CPC Class Codes: H04L 27/2692 with preamble design, i.e. with negotiation of the synchronisation sequence with transmitter or sequence linked to the algorithm used at the receiver
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/0048 Allocation of pilot signals, i.e. of signals known to the receiver
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 56/00 Synchronisation arrangements
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA

Abstract

A method and apparatus for performing measurement based on synchronization signal (SS) blocks in a wireless communication system is provided. A user equipment (UE) which supports a new radio access technology (NR) receives a SS block measurement timing configuration (SMTC) from a network, and performs measurement based on the SS blocks in a duration which is determined based on the SMTC. The SS blocks are included in an active bandwidth part (BWP).

Claims

1. A method for performing measurement based on synchronization signal (SS) blocks by a user equipment (UE) in a wireless communication system, the method comprising:

receiving a SS block measurement timing configuration (SMTC) from a network; and

performing measurement based on the SS blocks in a duration which is determined based on the SMTC,

wherein the SS blocks are included in an active bandwidth part (BWP).

2. The method of claim 1, wherein the duration is applied based on the active BWP.

3. The method of claim 1, wherein the duration is configured by a higher layer signaling from the network.

4. The method of claim 1, wherein a frequency or bandwidth for the measurement is configured by the network.

5. The method of claim 1, wherein the active BWP is activated during a time duration including at least a retuning gap for the active BWP, a measurement period and a retuning gap for another BWP.

6. The method of claim 1, further comprising operating at a current active BWP, before performing the measurement, and

wherein the current active BWP does not include the SS blocks.

7. The method of claim 6, further comprising performing fallback to the current active BWP, after performing the measurement.

15. The method of claim 1, wherein the UE is in communication with at least one of a mobile device, a network, and/or autonomous vehicles other than the UE.

8. 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, that;

controls the transceiver to receive a SS block measurement timing configuration (SMTC) from a network; and

performs measurement based on synchronization signal (SS) blocks in a duration which is determined based on the SMTC,

wherein the SS blocks are included in an active bandwidth part (BWP).

9. The UE of claim 8, wherein the duration is applied based on the active BWP.

10. The UE of claim 8, wherein the duration is configured by a higher layer signaling from the network.

11. The UE of claim 8, wherein a frequency or bandwidth for the measurement is configured by the network.

12. The UE of claim 8, wherein the active BWP is activated during a time duration including at least a retuning gap for the active BWP, a measurement period and a retuning gap for another BWP.

13. The UE of claim 8, wherein the processor operates at a current active BWP, before performing the measurement, and

wherein the current active BWP does not include the SS blocks.

14. The method UE of claim 13, wherein the processor performs fallback to the current active BWP, after performing the measurement.