METHOD AND APPARATUS FOR SYNCHRONIZATION OPERATION IN CELLULAR INTERNET OF THINGS NETWORKS

• US 20170265156A1
• Filed: 03/14/2017
• Published: 09/14/2017
• Est. Priority Date: 03/14/2016
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: XUE, Peng, JEONG, Cheol, YUN, Yeohun
• Granted Patent: US 10,863,460 B2
• Time in Patent Office: Days
• CPC Class Codes: H04L 5/0037 Inter-user or inter-terminal allocation
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/0064 Rate requirement of the data, e.g. scalable bandwidth, data priority
• CPC Class Codes: H04L 5/0092 Indication of how the channel is divided
• CPC Class Codes: H04W 4/70 Services for machine-to-machine communication [M2M] or machine type communication [MTC]
• CPC Class Codes: H04W 56/001 Synchronization between nodes

Abstract

The present disclosure relates to a communication method and system for converging a 5^th-Generation (5G) communication system for supporting higher data rates beyond a 4^th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. A wireless device for receiving signals, a base station for transmitting a master information block (MIB) in a wireless communication network and a method therefore are provided. The wireless device comprises a receiver configured to receive, from a base station, a master information block (MIB) for a first communication using a first frequency bandwidth, and a processor configured to identify a frequency offset between a center frequency of the first frequency bandwidth and a channel raster for a second communication using a second frequency bandwidth based on information in the MIB. The receiver is further configured to receive, from the base station, signals, through the first communication, based on the frequency offset. The first frequency bandwidth is narrower than the second frequency bandwidth.

Claims

1. A method of a wireless device for receiving signals in a wireless communication network, the method comprising:

receiving, from a base station, a master information block (MIB) for a first communication using a first frequency bandwidth;

identifying a frequency offset between a center frequency of the first frequency bandwidth and a channel raster for a second communication using a second frequency bandwidth based on information in the MIB; and

receiving, from the base station, signals, through the first communication, based on the frequency offset,

wherein the first frequency bandwidth is narrower than the second frequency bandwidth.

2. The method of claim 1, wherein the MIB comprises information on an operation mode of the first communication.

3. The method of claim 2,

wherein if the information on the operation mode indicates that the operation mode is a first mode or a second mode, the frequency offset is received in the MIB,

wherein the first mode indicates that a deployment scenario of the first communication correspond to a guard-band deployment, and

wherein the second mode indicates that the deployment scenario of the first communication corresponds to an in-band deployment and that a cell identifier for the first communication is different from a cell identifier for the second communication.

4. The method of claim 3, the frequency offset has a value in set {−

7.5 kHz, −

2.5 kHz, 2.5 kHz, 7.5 kHz}.

5. The method of claim 2,

wherein if the information on the operation mode indicates that the operation mode is a third mode, the frequency offset is derived from information on a cell reference signal sequence of the second communication in the MIB,

wherein the third mode indicates that a deployment scenario of the first communication corresponds to an in-band deployment and that the first communication and the second communication share a same cell identifier.

9. The method of claim 2,

wherein if the operation mode is a third mode, the MIB comprises information on a cell reference signal sequence of the second communication, and

wherein the third mode indicates that a deployment scenario of the first communication corresponds to an in-band deployment and that the first communication and the second communication share a same cell identifier.

6. A method of a base station for transmitting a master information block (MIB) in a wireless communication network, the method comprising:

identifying an operation mode of a first communication using a first frequency bandwidth; and

transmitting, to a wireless device, a MIB for the first communication based on the operation mode, the MIB including information for obtaining frequency an offset between a center frequency of the first frequency bandwidth and a channel raster for a second communication using a second frequency bandwidth,

wherein the first frequency bandwidth is narrower than the second frequency bandwidth.

7. The method of claim 6,

wherein if the operation mode is a first mode or a second mode, the MIB comprises the frequency offset,

wherein the first mode indicates that a deployment scenario of the first communication correspond to a guard-band deployment, and

wherein the second mode indicates that the deployment scenario of the first communication corresponds to an in-band deployment and that a cell identifier for the first communication is different from a cell identifier for the second communication.

8. The method of claim 7, the frequency offset has a value in set {−

7.5 kHz, −

2.5 kHz, 2.5 kHz, 7.5 kHz}.

10. A wireless device for receiving signals in a wireless communication network, the wireless device comprising:

a receiver configured to receive, from a base station, a master information block (MIB) for a first communication using a first frequency bandwidth; and

a processor configured to identify a frequency offset between a center frequency of the first frequency bandwidth and a channel raster for a second communication using a second frequency bandwidth based on information in the MIB,

wherein the receiver is further configured to receive, from the base station, signals, through the first communication, based on the frequency offset, and

wherein the first frequency bandwidth is narrower than the second frequency bandwidth.

11. The wireless device of claim 10, wherein the MIB comprises information on an operation mode of the first communication.

12. The wireless device of claim 11,

wherein if the information on the operation mode indicates that the operation mode is a first mode or a second mode, the frequency offset is received in the MIB,

wherein the first mode indicates that a deployment scenario of the first communication correspond to a guard-band deployment, and

wherein the second mode indicates that the deployment scenario of the first communication corresponds to an in-band deployment and that a cell identifier for the first communication is different from a cell identifier for the second communication.

13. The wireless device of claim 12, the frequency offset has a value in set {−

7.5 kHz, −

2.5 kHz, 2.5 kHz, 7.5 kHz}.

14. The wireless device of claim 11,

wherein if the information on the operation mode indicates that the operation mode is a third mode, the frequency offset is derived from information on a cell reference signal sequence of the second communication in the MIB,

wherein the third mode indicates that a deployment scenario of the first communication corresponds to an in-band deployment and that the first communication and the second communication share a same cell identifier.

15. A base station for transmitting a master information block (MIB) in a wireless communication network, the base station comprising:

a processor configured to identify an operation mode of a first communication using a first frequency bandwidth; and

a transmitter configured to transmit, to a wireless device, a MIB for the first communication based on the operation mode, the MIB including information for obtaining frequency an offset between a center frequency of the first frequency bandwidth and a channel raster for a second communication using a second frequency bandwidth,

wherein the first frequency bandwidth is narrower than the second frequency bandwidth.

16. The base station 15,

wherein if the operation mode is a first mode or a second mode, the MIB comprises the frequency offset,

wherein the first mode indicates that a deployment scenario of the first communication correspond to a guard-band deployment, and

wherein the second mode indicates that the deployment scenario of the first communication corresponds to an in-band deployment and that a cell identifier for the first communication is different from a cell identifier for the second communication.

17. The base station 16, the frequency offset has a value in set {−

7.5 kHz, −

2.5 kHz, 2.5 kHz, 7.5 kHz}.

18. The base station 15,

wherein if the operation mode is a third mode, the MIB comprises information on a cell reference signal sequence of the second communication, and

wherein the third mode indicates that a deployment scenario of the first communication corresponds to an in-band deployment and that the first communication and the second communication share a same cell identifier.