Methods and apparatus for supporting multiple services in wireless communication system

• US 10,499,369 B2
• Filed: 09/29/2017
• Issued: 12/03/2019
• Est. Priority Date: 09/29/2016
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Ryu, Hyunseok, Yoo, Hyunil, Xue, Peng, Lee, Namjeong, Jeong, Cheol
• Primary Examiner(s): Yao, Kwang B
• Assistant Examiner(s): Bokhari, Syed M
• Application Number:
  US15/721,620
• Publication Number:
  US 20180092064A1
• Time in Patent Office: 795 Days
• Field of Search: 370312, 370329
• CPC Class Codes: H04L 27/26 Systems using multi-frequency codes H04L27/32 takes precedence
• 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 27/2692 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 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 67/12 specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
• CPC Class Codes: H04W 48/10 using broadcasted information
• CPC Class Codes: H04W 48/12 using downlink control channel
• CPC Class Codes: H04W 56/001 Synchronization between nodes
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 72/30 Resource management for broadcast services
• CPC Class Codes: H04W 74/002 Transmission of channel access control information
• CPC Class Codes: H04W 74/0833 Random access procedures, e.g. with 4-step access

Abstract

The present disclosure relates to a communication technique of fusing a 5G communication system for supporting higher data transmission rate beyond a 4G system with IoT technology and a system thereof. The present disclosure may be applied to intelligent services (e.g., smart home, smart building, smart city, smart car or connected car, health care, digital education, retail business, security and safety related service, or the like) based on the 5G communication technology and the IoT related technology. The present disclosure discloses a method and an apparatus for transmitting/receiving a random access channel (RACH) according to beam reciprocity (beam correspondence) with a method and an apparatus for supporting various services.

Claims

1. A method of a terminal in a wireless communication system, the method comprising:

receiving, from a base station, a primary synchronization signal (PSS), a secondary synchronization signal (SSS) and a master information block (MIB) based on a first subcarrier spacing, the MIB including information on a second subcarrier spacing;

receiving, from the base station, a system information block (SIB) based on the second subcarrier spacing, the SIB including information on a third subcarrier spacing and information on a fourth subcarrier spacing;

transmitting, to the base station, a random access preamble based on the third subcarrier spacing;

receiving, from the base station, a random access response based on the second subcarrier spacing; and

transmitting, to the base station, a message requesting a radio resource control (RRC) connection based on the fourth subcarrier spacing.

2. The method of claim 1, wherein the first subcarrier spacing is predefined based on a frequency band on which the PSS and the SSS are received.

3. The method of claim 1, further comprising receiving, from the base station, a message including a contention resolution identity based on the second subcarrier spacing.

4. The method of claim 1, wherein the PSS, the SSS and the MIB are received on a frequency position with an offset from a center frequency.

5. A terminal in a wireless communication system, the terminal comprising:

a transceiver to be configured to transmit and receive a signal; and

a processor to be configured to;

receive, from a base station, a primary synchronization signal (PSS), a secondary synchronization signal (SSS) and a master information block (MIB) based on a first subcarrier spacing, the MIB including information on a second subcarrier spacing;

receive, from the base station, a system information block (SIB) based on the second subcarrier spacing, the SIB including information on a third subcarrier spacing and a fourth subcarrier spacing;

transmit, to the base station, a random access preamble based on the third subcarrier spacing;

receive, from the base station, a random access response based on the second subcarrier spacing; and

transmit, to the base station, a message requesting a radio resource control (RRC) connection based on the fourth subcarrier spacing.

6. The terminal of claim 5, wherein the first subcarrier spacing is predefined based on a frequency band on which the PSS and the SSS are received.

7. The terminal of claim 5, wherein the processor is further configured to receive, from the base station, a message including a contention resolution identity based on the second subcarrier spacing.

8. The terminal of claim 5, wherein the PSS, the SSS and the MIB are received on a frequency position with an offset from a center frequency.

9. A method of a base station in a wireless communication system, the method comprising:

transmitting, to a terminal, a primary synchronization signal (PSS), a secondary synchronization signal (SSS) and a master information block (MIB) based on a first subcarrier spacing, the MIB including information on a second subcarrier spacing;

transmitting, to the terminal, a system information block (SIB) based on the second subcarrier spacing, the SIB including information on a third subcarrier spacing and information on a fourth subcarrier spacing;

receiving, from the terminal, a random access preamble based on the third subcarrier spacing;

transmitting, to the terminal, a random access response based on the second subcarrier spacing; and

receiving, from the terminal, a message requesting a radio resource control (RRC) connection based on the fourth subcarrier spacing.

10. The method of claim 9, wherein the first subcarrier spacing is predefined based on a frequency band on which the PSS and the SSS are received.

11. The method of claim 9, further comprising transmitting, to the terminal, a message including a contention resolution identity based on the second subcarrier spacing.

12. The method of claim 9, wherein the PSS, the SSS and the MIB are received on a frequency position with an offset from a center frequency.

13. A base station in a wireless communication system, the base station comprising:

a transceiver to be configured to transmit and receive a signal; and

a processor to be configured to;

transmit, to a terminal, a primary synchronization signal (PSS), a secondary synchronization signal (SSS) and a master information block (MIB) based on a first subcarrier spacing, the MIB including information on a second subcarrier spacing;

transmit, to the terminal, a system information block (SIB) based on the second subcarrier spacing, the SIB including information on a third subcarrier spacing and information on a fourth subcarrier spacing;

receive, from the terminal, a random access preamble based on the third subcarrier spacing;

transmit, to the terminal, a random access response based on the second subcarrier spacing; and

receive, from the terminal, a message requesting a radio resource control (RRC) connection based on the fourth subcarrier spacing.

14. The base station of claim 13, wherein the first subcarrier spacing is predefined based on a frequency band on which the PSS and the SSS are received.

15. The base station of claim 13, wherein the processor is further configured to transmit, to the terminal, a message including a contention resolution identity based on the second subcarrier spacing.

16. The base station of claim 13, wherein the PSS, the SSS and the MIB are received on a frequency position with an offset from a center frequency.