UPLINK ACCESS METHOD OF MOBILE COMMUNICATION SYSTEM

• US 20100232335A1
• Filed: 06/21/2007
• Published: 09/16/2010
• Est. Priority Date: 06/21/2006
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Park, Sung-Jun, Lee, Young-Dae, Chun, Sung-Duck
• Granted Patent: US 8,248,924 B2
• Time in Patent Office: Days
• US Class Current: 370/312
• CPC Class Codes: H04W 72/30 Resource management for broadcast services
• CPC Class Codes: H04W 74/006 in the downlink, i.e. towards the terminal
• CPC Class Codes: H04W 74/0833 Random access procedures, e.g. with 4-step access
• CPC Class Codes: H04W 74/0866 using a dedicated channel for access

Abstract

In a wireless mobile communications system, a network transmits a response request message with respect to a particular point-to-multipoint service to a terminal, and then the terminal transmits a response message to the network using an allocated uplink access preamble included in the response request message, thereby effectively performing a counting procedure with respect to the particular broadcast service at a minimum overhead.

Claims

1. A method of uplink access for a wireless communications system, the method comprising:

receiving a response request with respect to a service, wherein the response request includes uplink transmission information related to a preamble that will be used for transmitting a response that responds to the response request, wherein the uplink transmission information includes a service dedicated signature; and

transmitting the response using the uplink transmission information.

2. The method of claim 1, wherein the response request is an access information message.

3. The method of claim 1, wherein the response request is received through a MCCH (Multicast Control Channel).

4. The method of claim 1, wherein the response request is used for counting a number of terminals that subscribed to the service.

5. The method of claim 1, wherein the service is related to at least one of a point to multipoint service, a multicast service, a broadcast service, and a multimedia service.

6. The method of claim 1, wherein the response request includes at least one of a service identity, a session identity, a Counting on, or a Counting off.

7. The method of claim 1, wherein the uplink transmission information includes at least one of a time frame for a transmission of the preamble, a frequency of the preamble, a preamble code, or a signature of the preamble.

8. The method of claim 1, wherein the response includes a service identity or a session identity.

9. The method of claim 6, wherein the response is transmitted to a network only if the response request includes the Counting on.

10. The method of claim 1, wherein a transmission of preamble is stopped if a positive response with respect to a previously transmitted preamble is received from a network, and the transmission of the preamble continues if a negative response with respect to previously transmitted preamble is received from the network.

11. The method of claim 1, further comprising:

receiving a response message in response to the transmitted response.

12. The method of claim 11, wherein the response message is either an access information message or an uplink access response message received on a downlink SCH.

13. The method of claim 11, further comprising:

retransmitting the response if the response message is not received within a certain time frame.

14. The method of claim 1, wherein a duration time or a termination time for using the service dedicated signature is set by a network.

15. The method of claim 14, wherein information related to the duration time or the termination time for using the service dedicated signature is included in the uplink transmission information.

16. The method of claim 15, wherein the service dedicated signature is retransmitted by the network when previously received service dedicate signature was not used in the duration time or before the termination time.

17. The method of claim 1, wherein a MBMS Radio Network Temporary Identity (RNTI) that corresponds to a service identity is received through a PDCCH (Physical Dedicated Control Channel).

18. A method of uplink access in a wireless communications system, the method comprising:

transmitting a response request with respect to a service, wherein the response request includes uplink transmission information related to a preamble that will be used by a terminal for transmitting a response that responds to the response request, wherein the uplink transmission information includes a service dedicated signature; and

receiving the response from the terminal that uses the uplink transmission information for a transmission of the response.

19. The method of claim 18, wherein the response request is an access information message.

20. The method of claim 18, wherein the response request is used for counting a number of terminals that subscribed to the service and the response request is transmitted through a MCCH (Multicast Control Channel).

21. The method of claim 18, wherein the service is related to at least one of a point to multipoint service, a multicast service, a broadcast service, and a multimedia service.

22. The method of claim 18, wherein the response request includes at least one of a service identity, a session identity, a Counting on, or a Counting off.

23. The method of claim 18, wherein the uplink transmission information includes at least one of a time frame for a transmission of the preamble, a frequency of the preamble, a preamble code, or a signature of the preamble.

24. The method of claim 18, wherein the response includes a service identity or a session identity.

25. The method of claim 18, further comprising:

transmitting a response message in response to the received response.

26. The method of claim 25, wherein the response message is either an access information message or an uplink access response message received on a downlink SCH.

27. The method of claim 18, further comprising:

setting a duration time or a termination time for using the service dedicated signature.

28. The method of claim 27, wherein information related to the duration time or the termination time for using the service dedicated signature is included in the uplink transmission information.

29. The method of claim 28, further comprising:

retransmitting the service dedicated signature when previously transmitted service dedicate signature was not used by the terminal in the duration time or before the termination time.

30. The method of claim 18, wherein a MBMS Radio Network Temporary Identity (RNTI) that corresponds to a service identity is transmitted to the terminal through a PDCCH (Physical Dedicated Control Channel).