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

Patent metadata

Field	Value
Publication number	US-9712307-B2
Application number	US-201414539874-A
Country	US
Kind code	B2
Filing date	Nov 12, 2014
Priority date	Jan 31, 2007
Publication date	Jul 18, 2017
Grant date	Jul 18, 2017

Abstract

A method for receiving system information via a broadcast control channel (BCCH) to which a broadcast channel (BCH) and a downlink shared channel (DL_SCH) are mapped, the method including receiving, by a user equipment (UE), a block of first system information from a base station via the BCH, and receiving, by the UE, a first block of second system information from the base station via the DL_SCH. The first block of second system information is scheduled with a fixed time offset. The method further includes receiving, by the UE, a plurality of second blocks of second system information from the base station via the DL_SCH.

First claim

What is claimed is:

1. A method for receiving system information via a broadcast control channel (BCCH), the method comprising:
receiving, by a user equipment (UE), a block of first system information from a base station via a broadcast channel (BCH) to which the BCCH is mapped;
receiving, by the UE, a first block of second system information from the base station via a downlink shared channel (DL_SCH) to which the BCCH is mapped, wherein the first block of second system information is scheduled with a fixed time offset from the received block of first system information; and
receiving, by the UE, a plurality of second blocks of second system information from the base station via the DL_SCH.

2. The method of claim 1 , wherein the first block of second system information includes scheduling information for the plurality of second blocks of second system information, and
wherein the scheduling information includes at least one of periodicity information and mapping information.

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

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

5. The method of claim 1 , wherein the first block of second system information and each of the plurality of second blocks of second system information are received via the DL_SCH in accordance with frequency and time information.

6. The method of claim 1 , wherein the plurality of second blocks of second system information further includes at least one of:
paging information,
a cell select related information,
a positioning related information, and
a Multimedia Broadcast Multicast Service (MBMS) related information.

7. The method of claim 1 , wherein the first block of 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 Public Land Mobile Network (PLMN) identity information, tracking area information, and cell barred information.

8. The method of claim 1 , wherein one of the plurality of second blocks of second system information further includes value tag information.

9. The method of claim 1 , wherein the plurality of second blocks of second system information received from the base station via the DL_SCH is configured to carry user traffic.

10. The method of claim 1 , wherein the BCH is a static channel.

11. A method for transmitting system information via a broadcast control channel (BCCH), the method comprising:
transmitting, by a base station, a block of first system information to a user equipment (UE) via a broadcast channel (BCH) to the BCCH is mapped;
transmitting, by the base station, a first block of second system information to the UE via a downlink shared channel (DL_SCH) to which the BCCH is mapped, wherein the first block of second system information is scheduled with a fixed time offset from the received block of first system information; and
transmitting, by the base station, a plurality of second blocks of second system information to the UE via the DL_SCH.

12. The method of claim 11 , wherein the first block of second system information includes scheduling information for the plurality of second blocks of second system information, and
wherein the scheduling information includes at least one of periodicity information and mapping information.

13. The method of claim 11 , wherein the DL_SCH supports a hybrid automatic repeat request (HARQ) scheme.

14. The method of claim 11 , wherein the block of first system information includes at least one of bandwidth information and parameter information about a physical layer.

15. The method of claim 11 , wherein the first block of second system information and each of the plurality of second blocks of second system information are received via the DL_SCH in accordance with frequency and time information.

16. The method of claim 11 , wherein the plurality of second blocks of second system information further includes at least one of:
paging information,
a cell select related information,
a positioning related information, and
a Multimedia Broadcast Multicast Service (MBMS) related information.

17. The method of claim 11 , wherein the first block of 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 Public Land Mobile Network (PLMN) identity information, tracking area information, and cell barred information.

18. The method of claim 11 , wherein one of the plurality of second blocks of second system information further includes value tag information.

19. The method of claim 11 , wherein the plurality of second blocks of second system information transmitted from the base station via the DL_SCH is configured to carry user traffic.

20. The method of claim 11 , wherein the BCH is a static channel.

Assignees

• Lg Electronics Inc

Inventors

• Lee Young-Dae
• Chun Sungduck
• Park Sung Jun
• Yi Seung June

Classifications

• H04W72/30

  Resource management for broadcast services · CPC title

• H04L5/003

  Arrangements for allocating sub-channels of the transmission path · CPC title

• H04L1/1812

  Hybrid protocols; Hybrid automatic repeat request [HARQ] · CPC title

• H04W92/10

  between terminal device and access point, i.e. wireless air interface · CPC title

• H04W28/06 Primary

  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 title