METHOD AND APPARATUS FOR MEASUREMENT REFERENCE SIGNAL AND SYNCHRONIZATION

• US 20170359791A1
• Filed: 06/08/2017
• Published: 12/14/2017
• Est. Priority Date: 06/09/2016
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Onggosanusi, Eko, Kim, Younsun, Si, Hongbo, Rahman, Md Saifur
• Granted Patent: US 10,512,046 B2
• Time in Patent Office: Days
• CPC Class Codes: H04J 11/0073 Acquisition of primary synchronisation channel, e.g. detection of cell-ID within cell-ID group
• CPC Class Codes: H04J 11/0076 Acquisition of secondary synchronisation channel, e.g. detection of cell-ID group
• 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 5/0023 Time-frequency-space
• CPC Class Codes: H04L 5/0035 Resource allocation in a cooperative multipoint environment
• 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: H04L 5/0073 Allocation arrangements that take into account other cell interferences for intercell interference mitigation or co-ordination in orthogonal multiplex systems H04J11/005
• CPC Class Codes: H04L 5/0094 Indication of how sub-channels of the path are allocated
• CPC Class Codes: H04W 56/0005 synchronizing of arrival of multiple uplinks

Abstract

Methods and apparatuses for measurement reference signals and synchronization signals. A user equipment (UE) includes a transceiver and a processor operably connected to the transceiver. The transceiver is configured to receive a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a primary broadcast channel (PBCH). The processor is configured to decode cell identification information from at least the PSS and the SSS and to decode a master information block (MIB) from the PBCH. The PSS, the SSS, and the PBCH are time-division multiplexed. A same set of sequences are used for the PSS and the SSS for different carrier frequencies and different sub-carrier spacing values.

Claims

1. A user equipment (UE) comprising:

a transceiver configured to receive a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a primary broadcast channel (PBCH); and

a processor operably connected to the transceiver, the processor configured to decode cell identification information from at least the PSS and the SSS and to decode a master information block (MIB) from the PBCH;

wherein the PSS, the SSS, and the PBCH are time-division multiplexed, and

wherein a same set of sequences are used for the PSS and the SSS for different carrier frequencies and different sub-carrier spacing values.

2. The UE of claim 1, wherein the PSS, the SSS, and the PBCH are transmitted using a same single antenna port.

3. The UE of claim 1, wherein timing information within each radio frame is signaled via the PBCH.

4. The UE of claim 3, wherein the timing information is included in the MIB.

5. The UE of claim 2, wherein a number of sub-carriers used for the PSS is the same as a number of sub-carriers used for the SSS.

6. The UE of claim 2, wherein a number of sub-carriers used for the SSS is the same as a number of sub-carriers used for the PBCH.

7. The UE of claim 2, wherein a number of sub-carriers used for the PSS is the same as a number of sub-carriers used for the SSS and smaller than a number of sub-carriers used for the PBCH.

8. A base station (BS) comprising:

a processor configured to;

encode cell identification information in at least a primary synchronization signal (PSS) and a secondary synchronization signal (SSS);

encode a master information block (MIB) in a primary broadcast channel (PBCH); and

a transceiver operably connected to the processor, the transceiver configured to transmit the PSS, the SSS, and the PBCH;

wherein the PSS, the SSS, and the PBCH are time-division multiplexed, and

wherein a same set of sequences are used for the PSS and the SSS for different carrier frequencies and different sub-carrier spacing values.

9. The BS of claim 8, wherein the PSS, the SSS, and the PBCH are transmitted using a same single antenna port.

10. The BS of claim 8, wherein timing information within each radio frame is signaled via the PBCH.

11. The BS of claim 10, wherein the timing information is included in the MIB.

12. The BS of claim 8, wherein a number of sub-carriers used for the PSS is the same as a number of sub-carriers used for the SSS.

13. The BS of claim 8, wherein a number of sub-carriers used for the PSS is the same as a number of sub-carriers used for the SSS and smaller than a number of sub-carriers used for the PBCH.

14. A method for operating a user equipment (UE), the method comprising:

receiving a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a primary broadcast channel (PBCH);

decoding cell identification information from at least the PSS and the SSS; and

decoding a master information block (MIB) from the PBCH;

wherein the PSS, the SSS, and the PBCH are time-division multiplexed, and

wherein a same set of sequences are used for the PSS and the SSS for different carrier frequencies and different sub-carrier spacing values.

15. The method of claim 14, wherein the PSS, the SSS, and the PBCH are transmitted using a same single antenna port.

16. The method of claim 14, wherein timing information within each radio frame is signaled via the PBCH.

17. The method of claim 16, wherein the timing information is included in the MIB.

18. The method of claim 15, wherein a number of sub-carriers used for the PSS is the same as a number of sub-carriers used for the SSS.

19. The method of claim 15, wherein a number of sub-carriers used for the SSS is the same as a number of sub-carriers used for the PBCH.

20. The method of claim 15, wherein a number of sub-carriers used for the PSS is the same as a number of sub-carriers used for the SSS and smaller than a number of sub-carriers used for the PBCH.