Technique for controlling point-to-multipoint data transmissions
First Claim
1. A method for controlling content distribution in a broadcast-enabled network environment, the method comprising the steps of:
- initiating a first broadcast transmission of a location information query message into a group service area predefined for a content distribution service;
receiving location information response messages, each location information response message comprising location information indicative of a location of a user equipment having received the location information query message;
determining a content transmission area on the basis of the received location information response messages;
predicting the locations of items of user equipment during a second broadcast transmission, the content transmission area determined to comprise a geographical area of the network in which at least a predetermined quantity of the items of user equipment will be located during the second broadcast transmission according to the prediction; and
preparing for content distribution via at least one of the second broadcast transmission into the content transmission area and unicast retrieval.
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Abstract
A technique for controlling a point-to-multipoint (PTM) transmission of data over a PTM-enabled network (150) to a user group is proposed. In a first PTM transmission, a location information query message is distributed into a group service area (154). Upon receiving the query message, items of user equipment respond with location information response messages comprising location information indicative of a location of the respective user equipment. On the basis of the received location information response messages, a content transmission area (156, 157, 158) is determined. A second PTM transmission is then initiated into the content transmission area for content distribution. Furthermore, the content may be distributed via unicast retrieval.
8 Citations
22 Claims
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1. A method for controlling content distribution in a broadcast-enabled network environment, the method comprising the steps of:
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initiating a first broadcast transmission of a location information query message into a group service area predefined for a content distribution service; receiving location information response messages, each location information response message comprising location information indicative of a location of a user equipment having received the location information query message; determining a content transmission area on the basis of the received location information response messages; predicting the locations of items of user equipment during a second broadcast transmission, the content transmission area determined to comprise a geographical area of the network in which at least a predetermined quantity of the items of user equipment will be located during the second broadcast transmission according to the prediction; and preparing for content distribution via at least one of the second broadcast transmission into the content transmission area and unicast retrieval. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for controlling a user equipment for content reception in a broadcast-enabled network, the method comprising the steps of:
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receiving a location information query message via a first broadcast transmission from the network; sending, in response to the location information query message, a location information response message comprising location information indicative of a location of the user equipment for a second broadcast transmission; predicting locations of items of user equipment during a second broadcast transmission, wherein a content transmission area is determined to comprise a geographical area of the network in which at least a predetermined quantity of items of user equipment will be located during the second broadcast transmission according to the prediction; and preparing for content reception via at least one of the second broadcast transmission and unicast retrieval. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A network node implementing a group service control component in a broadcast-enabled network environment for controlling content distribution, the network node comprising:
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a first interface for initiating a first broadcast transmission of a location information query message into a group service area predefined for a content distribution service; a second interface for receiving location information response messages, each location information response message comprising location information indicative of a location of a user equipment having received the location information query message; a processing unit for determining a content transmission area on the basis of the received location information response messages and predicting the locations of items of user equipment during a second broadcast transmission, wherein the content transmission area is determined to comprise a geographical area of the network in which at least a predetermined quantity of items of user equipment will be located during the second broadcast transmission according to the prediction; and a third interface for initiating the second broadcast transmission into the content transmission area.
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20. A network node implementing a group service control component in a broadcast-enabled network environment for controlling content distribution, the network node comprising:
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a first interface for initiating a first broadcast transmission of a location information query message into a group service area predefined for a content distribution service; a second interface for receiving location information response messages, each location information response message comprising location information indicative of a location of a user equipment having received the location information query message; a processing unit for determining a content transmission area on the basis of the received location information response messages and predicting the locations of items of user equipment during a second broadcast transmission, wherein the content transmission area is determined to comprise a geographical area of the network in which at least a predetermined quantity of items of user equipment will be located during the second broadcast transmission according to the prediction; a third interface for initiating the second broadcast transmission into the content transmission area; and a fourth interface for controlling the provision of the content for unicast retrieval.
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21. A user equipment for content reception in a broadcast-enabled network, wherein the user equipment comprises:
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a first interface for receiving a location information query message via a first broadcast transmission from the network; a second interface for sending, in response to the location information query message, a location information response message comprising location information indicative of a location of the user equipment for content distribution control; and a third interface for receiving a second broadcast transmission from the network, wherein the user equipment is in a content transmission area, the user equipment location being predicted by the network and the content transmission area comprising a geographical area of the network in which at least a predetermined quantity of user equipment will be located during the second broadcast transmission according to the prediction. - View Dependent Claims (22)
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Specification