Method and device for receiving a multimedia broadcast multicast service in a mobile communication system

• US 9,705,692 B2
• Filed: 11/18/2016
• Issued: 07/11/2017
• Est. Priority Date: 10/10/2011
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Kim, Soeng-Hun, Jeong, Kyeong-In
• Primary Examiner(s): NGUYEN, MINH TRANG T
• Application Number:
  US15/355,825
• Publication Number:
  US 20170070360A1
• Time in Patent Office: 235 Days
• Field of Search: None
• CPC Class Codes: H04L 12/1881 with schedule organisation, e.g. priority, sequence management
• CPC Class Codes: H04L 12/189 in combination with wireless systems selective distribution or broadcast in wireless communication networks H04W4/06
• CPC Class Codes: H04W 36/0007 for multicast or broadcast services, e.g. MBMS multicast or broadcast application services H04W4/06; resource management for broadcast services H04W72/30; connection management for selective distribution or broadcast H04W76/40
• CPC Class Codes: H04W 36/06 Reselecting a communication resource in the serving access point
• CPC Class Codes: H04W 4/023 using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds
• CPC Class Codes: H04W 72/30 Resource management for broadcast services
• CPC Class Codes: H04W 74/0833 Random access procedures, e.g. with 4-step access

Abstract

The present invention relates to a method and device for receiving a multimedia broadcast multicast service (MBMS) in a mobile communication system. The method for receiving the MBMS of a terminal in the mobile communication system according to an embodiment of the present invention is characterized in that it includes: determining whether service area ID (SAI) information on a serving cell is broadcast during the MBMS; receiving the SAI information on the serving cell when it is determined that the SAI information is broadcast; determining, by using the received SAI information of the serving cell, whether an SAI of the MBMS matches the SAI of the serving cell; and changing the cell reselection priority of the frequency of the serving cell to the highest priority if it is determined that the SAI of the MBMS matches the SAI of the serving cell.

Claims

1. A method by a terminal, the method comprising:

obtaining multimedia broadcast multicast service (MBMS) information including at least one MBMS service area identifier (SAD;

configuring a cell reselection priority of a frequency corresponding to a SAI included in a system information of a serving cell to a highest priority if the SAI included in the system information indicates the at least one MBMS SAI included in the MBMS information; and

configuring a cell reselection priority of a frequency included in the MBMS information to the highest priority if the system information including the SAI is not received from the serving cell.

2. The method of claim 1, wherein the system information includes at least one of a SAI of a serving frequency and a SAI of a neighbor frequency.

3. The method of claim 1, further comprising:

performing a cell reselection based on the cell reselection priority in a radio resource control (RRC) idle state.

4. The method of claim 1, further comprising:

receiving the system information including the SAI of the serving cell; and

determining whether the SAI of the serving cell corresponds to the at least one MBMS SAI.

5. The method of claim 1, wherein the terminal considers that the frequency corresponding to the SAI included in the system information provides a MBMS service, if the SAI included in the system information indicates the at least one MBMS SAI included in the MBMS information.

6. A terminal comprising:

a transceiver configured to transmit and receive a signal; and

a controller configured to;

obtain multimedia broadcast multicast service (MBMS) information including at least one MBMS service area identifier (SAD,

configure a cell reselection priority of a frequency corresponding to a SAI included in a system information of a serving cell to a highest priority if the SAI included in the system information indicates the at least one MBMS SAI included in the MBMS information, and

configure a cell reselection priority of a frequency included in the MBMS information to the highest priority if the system information including the SAI is not received from the serving cell.

7. The terminal of claim 6, wherein the system information includes at least one of a SAI of a serving frequency and a SAI of a neighbor frequency.

8. The terminal of claim 6, wherein the controller is further configured to perform a cell reselection based on the cell reselection priority in a radio resource control (RRC) idle state.

9. The terminal of claim 6, wherein the controller is further configured to:

receive the system information including the SAI of the serving cell, and

determine whether the SAI of the serving cell corresponds to the at least one MBMS SAI.

10. The terminal of claim 6, wherein the terminal considers that the frequency corresponding to the SAI included in the system information provides a MBMS service, if the SAI included in the system information indicates the at least one MBMS SAI included in the MBMS information.