Method and system for system information acquisition in wireless communication system

Patent metadata

Field	Value
Publication number	US-2019223094-A1
Application number	US-201716319710-A
Country	US
Kind code	A1
Filing date	Jul 21, 2017
Priority date	Jul 22, 2016
Publication date	Jul 18, 2019
Grant date	—

Abstract

Method and system for system information acquisition in wireless communication system. Accordingly embodiment herein achieves a method for provisioning SI to a UE in a wireless communication system. The method includes decoding a broadcast channel to obtain first system information periodically broadcasted from a base station. Further, the method includes applying at least one cell selection parameter indicated in the first system information to camp on a cell served by the base station and storing the first system information. Further, the method includes accessing the camped cell based on at least one random access parameter indicated in the first system information. Further, the method includes determining whether at least one of a system information block of second system information available in the camped cell is provided based on at least one of the periodic broadcast and an on-demand basis. The on-demand basis to deliver the corresponding system information block of the second system information available in the camped cell is decided based on at least one of an indication and a flag included in the first system information for the system information block.

First claim

1 . A method for provisioning system information (SI) for a user equipment (UE) in a wireless communication system, the method comprising:
decoding a broadcast channel to acquire first system information periodically transmitted by a base station; applying at least one cell selection parameter indicated in the first system information to camp on a cell served by the base station; storing the first system information; accessing the camped cell based on at least one random access parameter indicated in the first system information; determining whether at least one of a system information block of second system information available in the camped cell is provided based on at least one of a periodic broadcast and an on-demand basis, wherein the on-demand basis to deliver the system information block of the second system information available in the camped cell is decided based on at least one of an indication and a flag included in the first system information for the system information block; and monitoring a paging channel to receive a paging message to determine whether at least one of the system information blocks available in the camped cell is expected to be updated.

2 . The method of claim 1 , wherein the first system information is periodically transmitted on at least a primary broadcast channel (PBCH) and a secondary broadcast channel (SBCH), wherein the first system information comprises at least a first master information block (MIB) and a second master information block.

3 . The method of claim 1 , wherein a system information request procedure is triggered on a resource to access the camped cell to indicate to the base station to transmit at least one system information block of the second system information after determining the corresponding system information blocks of the second system information is provided based on the on-demand basis if the at least one of the indication and the flag in the first system information for the system information block is not enabled.

4 . The method of claim 1 , wherein a system information request procedure is not triggered after determining all the system information blocks of the second system information available in the camped cell is provided through the periodic broadcast if the at least one of the indication and the flag in the first system information for the respective system information block is enabled.

5 . The method of claim 3 , wherein the method further comprises:
monitoring respective system information windows indicated by scheduling information included in the first system information to acquire one or more system information blocks of the second system information available in the camped cell; and storing the one or more system information blocks of the second system information available in the camped cell acquired by the user equipment either through the periodic broadcast or by triggering the system information request procedure, wherein the stored system information blocks of the second system information are associated with at least a system information area identifier (SAID) and system information configuration index (SCI).

6 . A method for provisioning system information (SI) by a base station in a wireless communication system, the method comprising:
transmitting a broadcast channel to at least one user equipment (UE) in a wireless communication system, wherein the broadcast channel periodically transmits first system information comprising at least a first master information block (MIB) and a second master information block; providing second system information to at least one user equipment in the wireless communication system based on at least one of a periodic broadcast and an on-demand basis, wherein the on-demand delivery of at least one system information block of the second system information is based on system information request procedure triggered by at least one user equipment, and the on-demand basis to deliver the system information block of the second system information available in the camped cell is decided based on at least one of an indication and a flag included in the first system information for the system information block; and transmitting a paging message on a paging channel to indicate, to at least one user equipment, that at least one of the system information blocks available in the camped cell is expected to be updated.

7 . The method of claim 6 , wherein the first system information is periodically transmitted on at least a primary broadcast channel (PBCH) and a secondary broadcast channel (SBCH), wherein the first system information comprises at least a first master information block (MIB) and a second master information block.

8 . The method of claim 6 , wherein the first system information comprises a plurality of system configuration index (SCI) and a system information area identifier (SAID), wherein each system configuration index is associated with a configuration of respective system information block (SIB) available as second system information in the camped cell, and wherein the system information area identifier defines a system information area validity scope for the plurality of system configuration index.

9 . The method of claim 6 , wherein the first system information comprises at least a downlink (DL) system bandwidth information, system frame number (SFN), list of public land mobile network identifiers (list of PLMN-ID), tracking area code (TAC), global cell identifier, transmission reception point identifier (TRP-ID), TRP-Group ID, system information area identifier (SAID), a cell barred status, a configuration comprising resource
for requesting one or more system information blocks of the second system information provided on-demand basis, scheduling information related to SI windows for reception of one or more SI blocks of the second system information, an enhanced physical downlink control channel (ePDCCH) configuration, cell selection parameters for camping, random access parameters, a plurality of indicators, and a plurality of system configuration index (SCI).

10 . A user equipment (UE) provisioned to acquire system information (SI) in a wireless communication system, the user equipment is configured to:
decode a broadcast channel to acquire first system information periodically transmitted by a base station; apply at least one cell selection parameter indicated in the first system information to camp on a cell served by the base station; store the first system information; access the camped cell based on at least one random access parameter indicated in the MSI; determine whether at least one of a system information block of second system information available in the camped cell is provided based on at least one of a periodic broadcast and an on-demand basis, wherein the on-demand basis to acquire the system information block of the second system information available in the camped cell is decided based on at least one of an indication and a flag included in the first system information for the system information block; and monitor a paging channel to receive a paging message to determine whether at least one of the system information blocks available in the camped cell is expected to be updated.

11 . The UE of claim 10 , wherein the first system information comprises a plurality of system configuration index (SCI) and a system information area identifier (SAID), wherein each system configuration index is associated with a configuration of respective system information block (SIB) available as second system information in the camped cell, and wherein the system information area identifier defines a system information area validity scope for the plurality of

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

• H04W76/11

  Allocation or use of connection identifiers · CPC title

• H04W48/20 Primary

  Selecting an access point · CPC title

• H04W56/001

  Synchronization between nodes · CPC title

• H04W84/042

  Public Land Mobile systems, e.g. cellular systems · CPC title