METHOD TO CONTROL A MULTIMEDIA BROADCAST MULTICAST SERVICE(MBMS) MODE OF A MBMS SESSION IN A COMMUNICATION SYSTEM
First Claim
1. A method to control a multimedia broadcast multicast service (MBMS) mode of a MBMS session in a communication system, the method comprising:
- determining, at a first network element that is located outside a radio access network, to use one of a single frequency network MBMS mode (SFN mode) and a single cell MBMS mode (SC mode) for the MBMS session based on a property of the MBMS session;
transmitting a session control signaling message from the first network element to a second network element that is located inside the radio access network, the session control signaling message instructing the second network element that user plane data for the MBMS session shall be transmitted using the determined MBMS mode.
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Abstract
A method to control a multimedia broadcast multicast service (MBMS) mode of a MBMS session in a communication system is provided herein. In operation, a first network element that is located outside a radio access network determines to use one of a single frequency network MBMS mode and a single cell MBMS mode for the MBMS session based on a property of the MBMS session. The first network element then transmits a session control signaling message to a second network element that is located inside the radio access network. The session control signaling message instructs the second network element that user plane data for the MBMS session shall be transmitted using the determined MBMS mode. The base stations then transmit the user plane data to one or user equipments in a target service area according to the determined MBMS mode.
55 Citations
20 Claims
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1. A method to control a multimedia broadcast multicast service (MBMS) mode of a MBMS session in a communication system, the method comprising:
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determining, at a first network element that is located outside a radio access network, to use one of a single frequency network MBMS mode (SFN mode) and a single cell MBMS mode (SC mode) for the MBMS session based on a property of the MBMS session; transmitting a session control signaling message from the first network element to a second network element that is located inside the radio access network, the session control signaling message instructing the second network element that user plane data for the MBMS session shall be transmitted using the determined MBMS mode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method to control a multimedia broadcast multicast service (MBMS) mode of a MBMS session in a communication system, the method comprising:
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determining, at a first network element that is located outside a radio access network, to use a MBMS mode based on a property of the MBMS session, wherein the MBMS mode is one of a single frequency network MBMS mode (SFN mode), a single cell MBMS mode (SC mode), and a local optimization MBMS mode specifying to a second network element that is located in the radio access network, to select one of the SFN mode or the SC mode based on local optimization; and transmitting a session control signaling message from the first network element to the second network element, the session control signaling message instructing the second network element that user plane data for the MBMS session shall be transmitted using the determined MBMS mode. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A method to control a multimedia broadcast multicast service (MBMS) mode of a MBMS session in a communication system, the method comprising:
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maintaining, at a first network element and at a second network element, information related to a first service area identifying a first set of cells and a second service area identifying a second set of cells, where the first set of cells substantially comprises the second set of cells; maintaining at the first network element and at the second network element, information identifying that a MBMS user plane data corresponding to the first service area shall be transmitted in single frequency network MBMS mode and that the MBMS user plane data corresponding to the second service area code shall be transmitted in single cell MBMS mode; determining, at the first network element, to use one of a single frequency network MBMS mode and a single cell MBMS mode for the MBMS session based on a property of the MBMS session; when determining to use the single frequency network MBMS mode, transmitting a first session control signaling message from the first network element to the second network element, the first session control signaling message instructing the second network element to transmit the MBMS session in the first service area; and when determining to use the single cell MBMS mode, transmitting a second session control signaling message from the first network element to the second network element, the second session control signaling message instructing the second network element to transmit the MBMS session in the second service area. - View Dependent Claims (17, 18, 19, 20)
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Specification