Uplink access method of mobile communication system

• US 8,248,924 B2
• Filed: 06/21/2007
• Issued: 08/21/2012
• Est. Priority Date: 06/21/2006
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Lee, Young-Dae, Chun, Sung-Duck, Park, Sung-Jun
• Primary Examiner(s): Yao, Kwang B
• Assistant Examiner(s): NGO, NGUYEN HOANG
• Application Number:
  US12/305,909
• Publication Number:
  US 20100232335A1
• Time in Patent Office: 1,888 Days
• Field of Search: 370/229, 370/230, 370/310, 370/310.2, 370/311, 370/312, 370/328, 370/329, 370/349
• US Class Current: 370/229
• 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 communication system, the method comprising:

receiving a response request corresponding to a particular service;

and transmitting a response using uplink transmission information,

wherein;

the response request includes uplink transmission information related to a preamble, is used for counting a number of terminals that subscribed to the particular service, and is received through a Multicast Control Channel (MCCH);

the preamble is used for transmitting the response to the response request;

the uplink transmission information includes a service dedicated signature; and

the service dedicated signature is used only for the particular service, is included in the preamble, and is used in a Random Access Channel (RACH) procedure for an uplink transmission.

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

3. The method of claim 1, wherein the particular service is related to at least a point-to-multipoint service, a multicast service, a broadcast service or a multimedia service.

4. The method of claim 1, wherein the response request includes at least a service identity, a session identity, a counting on of a counting procedure for the particular service or a counting off of the counting procedure for the particular service.

5. The method of claim 4, further comprising the response is transmitted only when the response request includes the counting on of the counting procedure for the particular service.

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

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

8. The method of claim 1, wherein:

the uplink transmission of the preamble is stopped when a positive response to a previously transmitted preamble is received from a network; and

the transmission of the preamble continues when a negative response to the previously transmitted preamble is received from the network.

9. The method of claim 1 further comprising receiving a response message in response to the transmitted response.

10. The method of claim 9, wherein the response message is an access information message or an uplink access response message received on a downlink Shared Channel (SCH).

11. The method of claim 9, further comprising retransmitting the response when the response message is not received within a certain time frame.

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

13. The method of claim 12, wherein information related to the set time duration or the set termination time is included in the uplink transmission information.

14. The method of claim 13, wherein the service dedicated signature is re-transmitting by the network when a previously received service dedicated signature was not used within the set time duration or before the set termination time.

15. The method of claim 1, further comprising receiving a Multimedia Broadcast Multicast Service (MBMS) Radio Network Temporary Identity (RNTI) that corresponds to a service identity through a Physical Dedicated Control Channel (PDCCH).

16. A method of uplink access in a wireless communication system, the method comprising:

transmitting a response request corresponding to a particular service; and

receiving a response that is transmitted using uplink transmission information,

wherein;

the response request includes uplink transmission information related to a preamble, is used for counting a number of terminals that subscribed to the particular service, and is received through a Multicast Control Channel (MCCH);

the preamble is used for transmitting the response to the response request;

the uplink transmission information includes a service dedicated signature; and

the service dedicated signature is used only for the particular service, is included in the preamble, and is used in a Random Access Channel (RACH) procedure for an uplink transmission.

17. The method of claim 16, wherein the response request is an access information message.

18. The method of claim 16, wherein the particular service is related to at least a point-to-multipoint service, a multicast service, a broadcast service or a multimedia service.

19. The method of claim 16, wherein the response request includes at least a service identity, a session identity, a counting on of a counting procedure for the particular service or a counting off of a counting procedure for the particular service.

20. The method of claim 16, wherein the uplink transmission information includes at least a time frame for an uplink transmission of the preamble, a frequency of the preamble, a preamble code or a signature of the preamble.

21. The method of claim 16, wherein the response includes a service identity or a session identity.

22. The method of claim 16, further comprising transmitting a response message in response to the received response.

23. The method of claim 22, wherein the response message is an access information message or an uplink access response message received on a downlink Shared Channel (SCH).

24. The method of claim 16, further comprising setting a time duration or a termination time for using the service dedicated signature.

25. The method of claim 24, wherein information related to the set time duration or the set termination time is included in the uplink transmission information.

26. The method of claim 25, further comprising re-transmitting the service dedicated signature when a previously transmitted service dedicated signature was not used by the terminal within the set time duration or before the set termination time.

27. The method of claim 16, further comprising transmitting a Multimedia Broadcast Multicast Service (MBMS) Radio Network Temporary Identity (RNTI) that corresponds to a service identity through a Physical Dedicated Control Channel (PDCCH).