Apparatus and method for controlling access to network in wireless communication system
In a wireless communication system, an apparatus and method for managing an uplink communication between a network and a plurality of terminals is achieved by transmitting a response condition parameter from the network to the plurality of terminals subscribing to a multicast service. The parameter is associated with controlling the uplink communication of the plurality of terminals. The terminal then applies the response control parameter to a predetermined test and responds to the network if the terminal determines that it is qualified to respond to the network in response to a result of the predetermined test. The network evaluates whether the parameter needs to be transmitted to the plurality of terminals and whether the parameter needs to be updated based on at least part of responses received by the network.
1. A method of controlling access to a network in a wireless communication system, the method performed by a terminal and comprising:
receiving response condition information via a common control channel, wherein the response condition information is for a plurality of terminals that subscribed to a service and includes one or more response probability factors;
determining whether to transmit a response message according to the received response condition information; and
transmitting the response message if the terminal is qualified to respond to the network.
2. The method of claim 1 , wherein the service is a Multimedia Multicast/Broadcast Service (MBMS) service.
3. The method of claim 1 , wherein the response message is used to count a number of the plurality of terminals that respond.
4. The method of claim 1 , wherein the plurality of terminals are positioned in one cell.
5. The method of claim 1 , wherein the plurality of terminals are divided into one or more terminal groups.
6. The method of claim 1 , wherein the response condition information is an initial parameter.
7. The method of claim 1 , wherein the response condition information is associated with selectively controlling whether the terminal needs to send the response message.
8. The method of claim 1 , wherein the response condition information is associated with a terminal identifier.
9. The method of claim 1 , wherein determining whether to transmit the response message comprises using the formula:
UE id mod M.
10. A method of controlling access to a network in a wireless communication system, the method performed by the network and comprising:
configuring response condition information for a plurality of terminals that subscribed to a service;
transmitting the response condition information via a common control channel, wherein the response condition information includes one or more response probability factors; and
receiving one or more response messages in response to the transmitted response condition information.
11. The method of claim 10 , wherein the response condition information is an initial parameter.
12. The method of claim 10 , wherein the one or more response messages are used to count a number of terminals.
13. The method of claim 10 , wherein the plurality of terminals are positioned in one cell.
14. The method of claim 10 , wherein the plurality of terminals are divided into one or more terminal groups.
15. The method of claim 14 , wherein the response condition information is transmitted to at least one selected terminal group among the one or more terminal groups.
16. The method of claim 10 , further comprising:
evaluating whether the response condition information needs to be updated based on the received one or more response messages.
17. The method of claim 16 , wherein evaluating whether the response condition information needs to be updated is based on a total of responses from a cell serviced by the network.
18. The method of claim 10 , further comprising:
updating the response condition information based on the received one or more response messages; and
transmitting the updated response condition information.
19. The method of claim 10 , further comprising:
establishing a point-to-multipoint radio bearer for the service if a number of responses is greater than or equal to a threshold value.
20. The method of claim 10 , further comprising:
establishing a point-to-point radio bearer for the service if a number of responses is less than a threshold value.
21. The method of claim 10 , wherein the response condition information is selected by the network such that a total number of responses is less than a total number of terminals that subscribed to the service.
22. The method of claim 10 , wherein the service is a Multimedia Multicast/Broadcast Service (MBMS) service.