Method and user equipment (ue) for provisioning minimum system information (msi) in wireless communication system

Patent metadata

Field	Value
Publication number	US-2021084578-A1
Application number	US-202017108246-A
Country	US
Kind code	A1
Filing date	Dec 1, 2020
Priority date	Nov 4, 2016
Publication date	Mar 18, 2021
Grant date	—

Abstract

Accordingly the embodiments herein provide a method for provisioning Minimum System Information (MSI) for User Equipment (UE) in a wireless communication system. The method includes decoding Primary Broadcast Channel (PBCH) to acquire a first Master Information Block (MIB) periodically transmitted by base station. Further, the method includes determining to perform one of bar a cell from which the first MIB is acquired for a pre-determined period of time and acquire second MIB transmitted on Secondary Broadcast Channel (SBCH) by base station based on cell barring indication received in the first MIB. Furthermore, the method includes transmitting a request message to the base station to obtain at least one SI block of the OSI. In some embodiments, the method includes receiving a list of system configuration indexes (SCIs) and corresponding configuration of SI blocks, from the base station based on SI storage capability of the UE indicated to the base station.

First claim

What is claimed is:

1 . A method performed by a terminal in a wireless communication system, the method comprising:
receiving, from a base station on a cell, a master information block (MIB) associated with primary synchronization signal (PSS) and secondary synchronization signal (SSS), wherein the MIB includes first scheduling information for a system information block (SIB) and cell barring information indicating whether the cell is barred; receiving, from the base station on the cell, the SIB based on the MIB; in case that the SIB includes second scheduling information for on demand system information (SI) and the on demand SI is required by the terminal, transmitting, to the base station, a request corresponding to the on demand SI by a random access preamble based on the second scheduling information; in case that the SIB does not include the second scheduling information for the on demand SI and the on demand SI is required by the terminal, transmitting, to the base station, a request corresponding to the on demand SI by a message 3; and receiving, from the base station, the requested on demand SI.

2 . The method of claim 1 ,
wherein the requested on demand SI is identified as not being broadcasted by the base station, and wherein the requested on demand SI is system information other than the MIB and the SIB.

3 . The method of claim 1 , further comprising:
receiving, from the base station, an acknowledgement for a request of the on demand SI, wherein the requested on demand SI is received based on the acknowledgement.

4 . The method of claim 3 ,
wherein, in case that the SIB includes the second scheduling information for the on demand SI, the acknowledgement is included in a random access response, and wherein, in case that the SIB does not include the second scheduling information for the on demand SI, the acknowledgement is included in a message 4.

5 . The method of claim 1 , wherein the receiving the SIB further comprises acquiring the received SIB based on the first scheduling information for the SIB included in the MIB, in case that the cell barring information indicates that the cell is not barred.

6 . A method performed by a base station in a wireless communication system, the method comprising:
transmitting, to a terminal on a cell, a master information block (MIB) associated with primary synchronization signal (PSS) and secondary synchronization signal (SSS), wherein the MIB includes first scheduling information for a system information block (SIB) and cell barring information indicating whether the cell is barred; transmitting, to the terminal on the cell, the SIB; in case that the SIB includes second scheduling information for on demand system information (SI), receiving, from the terminal, a request corresponding to the on demand SI by a random access preamble based on the second scheduling information; in case that the SIB does not include the second scheduling information for the on demand SI, receiving, from the terminal, a request corresponding to the on demand SI by a message 3; and transmitting, to the terminal, the requested on demand SI.

7 . The method of claim 6 ,
wherein the requested on demand SI is required by the terminal and is identified as not being broadcasted by the base station, and wherein the requested on demand SI is system information other than the MIB and the SIB.

8 . The method of claim 6 , further comprising:
transmitting, to the terminal, an acknowledgement for a request of the on demand SI, wherein the requested on demand SI is transmitted based on the acknowledgement.

9 . The method of claim 8 ,
wherein, in case that the SIB includes the second scheduling information for the on demand SI, the acknowledgement is included in a random access response, and wherein, in case that the SIB does not include the second scheduling information for the on demand SI, the acknowledgement is included in a message 4.

10 . The method of claim 6 ,
wherein the SIB is transmitted based on the first scheduling information for the SIB included in the MIB, in case that the cell barring information indicates that the cell is not barred.

11 . A terminal in a wireless communication system, the terminal comprising:
a transceiver configured to transmit and receive a signal; and a controller configured to:
receive, from a base station on a cell, a master information block (MIB) associated with primary synchronization signal (PSS) and secondary synchronization signal (SSS), wherein the MIB includes first scheduling information for a system information block (SIB) and cell barring information indicating whether the cell is barred,
receive, from the base station on the cell, the SIB based on the MIB,
in case that the SIB includes second scheduling information for on demand system information (SI) and the on demand SI is required by the terminal, transmit, to the base station, a request corresponding to the on demand SI by a random access preamble based on the second scheduling information,
in case that the SIB does not include the second scheduling information for the on demand SI and the on demand SI is required by the terminal, transmit, to the base station, a request corresponding to the on demand SI by a message 3, and receive, from the base station, the requested on demand SI.

12 . The terminal of claim 11 ,
wherein the requested on demand SI is identified as not being broadcasted by the base station, and wherein the requested on demand SI is system information other than the MIB and the SIB.

13 . The terminal of claim 11 ,
wherein the controller is further configured to receive, from the base station, an acknowledgement for a request of the on demand SI, and wherein the requested on demand SI is received based on the acknowledgement.

14 . The terminal of claim 13 ,
wherein, in case that the SIB includes the second scheduling information for the on demand SI, the acknowledgement is included in a random access response, and wherein, in case that the SIB does not include the second scheduling information for the on demand SI, the acknowledgement is included in a message 4.

15 . The terminal of claim 11 , wherein the controller is further configured to acquire the received SIB based on the first scheduling information for the SIB included in the MIB, in case that the cell barring information indicates that the cell is not barred.

16 . A base station in a wireless communication system, the base station comprising:
a transceiver configured to transmit and receive a signal; and a controller configured to: transmit, to a terminal on a cell, a master information block (MIB) associated with primary synchronization signal (PSS) and secondary synchronization signal (SSS), wherein the MIB includes first scheduling information for a system information block (SIB) and cell barring information indicating whether the cell is barred, transmit, to the terminal on the cell, the SIB, in case that the SIB includes second scheduling information for on demand system information (SI), receive, from the terminal, a request corresponding to the on demand SI by a random access preamble based on the second scheduling information, in case that the SIB does not include the second scheduling information for the on demand SI, receive, from the terminal, a request corresponding to the on demand SI by a message 3, and transmit, to the terminal, the requested on demand SI.

17 . The base station of claim 16 ,
wherein the requested on demand SI is required by the terminal and is identified

Assignees

• Samsung Electronics Co Ltd

Inventors

• Ingale Mangesh Abhimanyu
• Agiwal Anil

Classifications

• H04W72/23

  in the downlink direction of a wireless link, i.e. towards a terminal · CPC title

• H04W48/14 Primary

  using user query {or user detection} · CPC title

• H04W48/10

  using broadcasted information · CPC title

• H04W48/02 Primary

  Access restriction performed under specific conditions · CPC title

• H04W74/0833

  Random access procedures, e.g. with 4-step access · CPC title