Method for Avoiding Collision Using Identifier in Mobile Network

• US 20080304410A1
• Filed: 02/07/2007
• Published: 12/11/2008
• Est. Priority Date: 02/07/2006
• 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, Jung, Myung Cheul
• Granted Patent: US 8,493,854 B2
• Time in Patent Office: Days
• US Class Current: 370/231
• CPC Class Codes: H04L 61/5038 for local use, e.g. in LAN or USB networks, or in a controller area network [CAN]
• CPC Class Codes: H04W 48/08 Access restriction or access information delivery, e.g. discovery data delivery signalling during connection H04W76/00
• CPC Class Codes: H04W 74/08 Non-scheduled access, e.g. ALOHA hybrid access H04W74/02
• CPC Class Codes: H04W 76/10 Connection setup
• CPC Class Codes: H04W 8/26 Network addressing or numbering for mobility support

Abstract

A method for avoiding collision among transmissions from user equipment in a mobile network is provided. The method includes transmitting a preamble to a base station via a random access channel (RACH) and transmitting a response signal including an identifier of the user equipment to the user equipment in response to the RACH. It is possible to transmit/receive reliable data while reducing collision among transmissions from user equipment by efficiently using the identifier of the user equipment when the user equipment uses the RACH.

Claims

1. A method for communicating information in a mobile communication system, the method comprising:

transmitting a preamble over a random access channel (RACH);

receiving a response to the preamble, the response comprising an identifier and an indicator, the identifier generated according to the preamble and the indicator corresponding to the identifier; and

transmitting data using the identifier and indicator.

2. The method of claim 1, wherein the identifier comprises one of a random identifier (random Id), a MAC identifier (MAC Id), a cell-radio network temporary identity (C-RNTI) and a packet-temporary mobile subscriber identity (P-TMSI).

3. The method of claim 1, wherein the data is transmitted in one of an RRC message, user data and uplink control information.

4. The method according to claim 1, further comprising receiving a response to the data comprising the identifier, the indicator and a C-RNTI.

5. The method of claim 4, wherein the response is one of an RRS message, user data and downlink control information.

6. A method for communicating information in a mobile communication system, the method comprising:

receiving a preamble over a random access channel (RACH);

generating an identifier according to the preamble;

generating an indicator corresponding the identifier;

transmitting a response to the preamble, the response comprising the identifier and the indicator; and

receiving data transmitted using the identifier and indicator.

7. The method of claim 6, wherein the identifier is generated according to at least one of a signature and a RACH occasion in the preamble.

8. The method of claim 6, wherein the identifier comprises one of a random identifier (random Id), a MAC identifier (MAC Id), a cell-radio network temporary identity (C-RNTI) and a packet-temporary mobile subscriber identity(P-TMSI).

9. The method of claim 6, further comprising:

using the identifier and indicator in the received data to determine from which mobile communication terminal the data was received.

10. The method of claim 6, wherein the data is received in one of an RRC message, user data and uplink control information.

11. The method of claim 6, further comprising transmitting a response to the data comprising the identifier, the indicator and a C-RNTI.

12. The method of claim 11, wherein the response is transmitted in one of an RRS message, user data and downlink control information.

13. A method for communicating information in a mobile communication system, the method comprising:

a mobile communication terminal transmitting a preamble over a random access channel (RACH);

a network generating an identifier according to the preamble and an indicator corresponding the identifier;

the network transmitting a response to the preamble, the response comprising the identifier and the indicator; and

the mobile communication terminal transmitting data using the identifier and indicator.

14. The method of claim 13, wherein the network generates the identifier according to at least one of a signature and a RACH occasion in the preamble.

15. The method of claim 13, wherein the identifier comprises one of a random identifier (random Id), a MAC identifier (MAC Id), a cell-radio network temporary identity (C-RNTI) and a packet-temporary mobile subscriber identity (P-TMSI).

16. The method of claim 13, further comprising:

the network using the identifier and indicator in the received data to determine that the data was received form the mobile communication terminal.

17. The method of claim 13, wherein the mobile communication terminal transmits the data in one of an RRC message, user data and uplink control information.

18. The method of claim 13, further comprising the network transmitting a response to the data comprising the identifier, the indicator and a C-RNTI.

19. The method of claim 18, wherein network transmits the response in one of an RRS message, user data and downlink control information.