Method for transmitting and receiving system information via a broadcast channel (BCH) and a downlink shared channel (DL;SCH)

• US 9,130,721 B2
• Filed: 12/06/2013
• Issued: 09/08/2015
• Est. Priority Date: 01/31/2007
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Lee, Young-Dae, Chun, Sung-Duck, Park, Sung-Jun, Yi, Seung-June
• Primary Examiner(s): Fang, Keith
• Application Number:
  US14/099,538
• Publication Number:
  US 20140177587A1
• Time in Patent Office: 641 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: H04L 1/1812 Hybrid protocols; Hybrid automatic repeat request [HARQ]
• CPC Class Codes: H04L 5/0005 Time-frequency
• CPC Class Codes: H04L 5/003 Arrangements for allocating sub-channels of the transmission path
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04W 28/06 Optimizing the usage of the radio link, e.g. header compression, information sizing , discarding information system modifying transmission characteristic according to link quality by modifying frame length H04L1/0007; dynamic adaptation of the packet size for flow control or congestion control H04L47/365
• CPC Class Codes: H04W 4/06 Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
• CPC Class Codes: H04W 48/12 using downlink control channel
• CPC Class Codes: H04W 48/16 Discovering, processing access restriction or access information
• CPC Class Codes: H04W 72/30 Resource management for broadcast services
• CPC Class Codes: H04W 84/042 Public Land Mobile systems, e.g. cellular systems
• CPC Class Codes: H04W 92/10 between terminal device and access point, i.e. wireless air interface

Abstract

A device and method for receiving, by a mobile terminal, system information from a base station. The method includes: receiving a block of first system information from the base station via a broadcast channel configured to broadcast only system information; and receiving a plurality of blocks of second system information from the base station via a downlink shared channel configured to carry system information and other data, one of the plurality of blocks of second system information including scheduling information.

Claims

1. A method for receiving, by a user equipment (UE) from a base station, system information via a broadcast control channel (BCCH), the method comprising:

receiving a block of first system information from the base station via a broadcast channel (BCH);

after the block of the first system information is received, receiving a first block of the second system information from the base station via a downlink shared channel (DL SCH), the first block of the second system information including schedule information; and

after the first block of the second system information is received, receiving at least one second block of the second system information from the base station via the DL SCH in accordance with the schedule information included in the first block of the second system information,

wherein the first block of the second system information follows the block of the first system information with a fixed time offset,

wherein the first block of the second system information and the at least one second block of the second system information are received via the DL SCH in accordance with a specific control channel,

wherein the specific control channel indicates information about frequency and time resource in which the first block of the second system information and the at least one second block of the second system information are received, and

wherein the at least one second block of the second system information comprises plural second blocks of the second system information, each second block of the second system information being mutually exclusive.

2. The method of claim 1, wherein the block of the first system information and the first block of the second system information are scheduled for being transmitted periodically.

3. The method of claim 1, wherein the block of the first system information includes at least one of bandwidth information or parameter information about a physical layer.

4. The method of claim 1, wherein the at least one second block of the second system information further comprises at least one of:

paging information;

a cell select related information;

a positioning related information;

or

a Multimedia Broadcast Multicast Service (MBMS) related information.

5. The method of claim 1, wherein the DL_SCH supports HARQ (hybrid automatic repeat request) scheme.

6. The method of claim 1, wherein the first block of the second system information further includes value tag information and cell access related information, and

wherein the cell access related information includes at least one of PLMN (Public Land Mobile Network) identity information, tracking area information and cell barred information.

7. The method of claim 1, wherein the specific control channel is a L1/L2 control channel.

8. A method for transmitting, by a base station to at least one user equipment (UE), system information via a broadcast control channel (BCCH), the method comprising:

transmitting a block of first system information to the at least one UE via a broadcast channel (BCH);

after the block of the first system information is transmitted, transmitting a first block of second system information to the at least one UE via a downlink shared channel (DL SCH), the first block of the second system information including schedule information; and

after the first block of the second system information is transmitted, transmitting at least one second block of the second system information to the at least one UE via the DL SCH in accordance with the schedule information included in the first block of the second system information,

wherein the first block of the second system information follows the block of the first system information with a fixed time offset,

wherein the first block of the second system information and the at least one second block of the second system information are transmitted via the DL SCH in accordance with a specific control channel,

wherein the specific control channel indicates information about frequency and time resource in which the first block of the second system information and the at least one second block of the second system information are received, and

wherein the at least one second block of the second system information comprises plural second blocks of the second system information, each second block of the second system information being mutually exclusive.

9. The method of claim 8, wherein the block of the first system information and the first block of the second system information are scheduled for being transmitted periodically.

10. The method of claim 8, wherein the block of the first system information includes at least one of bandwidth information or parameter information about a physical layer.

11. The method of claim 8, wherein the at least one second block of the second system information further comprises at least one of:

paging information;

a cell select related information;

a positioning related information;

or

a Multimedia Broadcast Multicast Service (MBMS) related information.

12. The method of claim 8, wherein the DL_SCH supports HARQ (hybrid automatic repeat request) scheme.

13. The method of claim 8, wherein the first block of the second system information further includes value tag information and cell access related information, and

wherein the cell access related information includes at least one of PLMN (Public Land Mobile Network) identity information, tracking area information and cell barred information.

14. The method of claim 8, wherein the specific control channel is a L1/L2 control channel.