Method for transmitting response information in mobile communications system

• US 8,406,190 B2
• Filed: 03/01/2012
• Issued: 03/26/2013
• Est. Priority Date: 02/07/2006
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Lee, Young Dae, Chun, Sung Duck, Jung, Myung Cheul, Park, Sung Jun
• Primary Examiner(s): Phillips, Hassan
• Assistant Examiner(s): Sharma, Gautam
• Application Number:
  US13/410,185
• Publication Number:
  US 20120155421A1
• Time in Patent Office: 390 Days
• Field of Search: None
• US Class Current: 370/329
• CPC Class Codes: H04L 1/1671 the supervisory signal being transmitted together with control information
• CPC Class Codes: H04L 1/1812 Hybrid protocols; Hybrid automatic repeat request [HARQ]
• CPC Class Codes: H04L 1/1825 Adaptation of specific ARQ protocol parameters according to transmission conditions
• CPC Class Codes: H04L 1/1861 Physical mapping arrangements for ACK signaling see also H04L5/0053
• CPC Class Codes: H04L 1/1887 Scheduling and prioritising arrangements
• CPC Class Codes: H04L 47/10 Flow control; Congestion control
• CPC Class Codes: H04L 47/18 End to end
• CPC Class Codes: H04L 47/34 ensuring sequence integrity, e.g. using sequence numbers
• CPC Class Codes: H04L 5/0055 Physical resource allocation for ACK/NACK for physical mapping arrangements in ARQ protocols H04L1/1861
• CPC Class Codes: H04W 28/26 Resource reservation
• CPC Class Codes: H04W 56/0045 compensating for timing error by altering transmission time
• CPC Class Codes: H04W 72/12 Wireless traffic scheduling
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 74/004 in the uplink, i.e. towards network
• 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
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A user equipment (UE) performing a random access in a mobile communication system includes a transmitter configured to transmit a random access preamble to a network; a receiver receiving a medium access control packet data unit (MAC PDU) including one or more random access responses and a MAC header consisting of one or more sub headers, each of the sub headers respectively corresponding to each of the random access responses; and a processor processing information on a specific random access response among the random access responses based on information on the MAC PDU, wherein all of the sub headers are in a first part of the MAC PDU and all of the random access responses are in a second part of the MAC PDU subsequent to the first part.

Claims

1. A user equipment (UE) performing a random access in a mobile communication system, the UE comprising:

a transmitter configured to transmit a random access preamble to a network;

a receiver configured to receive a medium access control packet data unit (MAC PDU) comprising one or more random access responses and a MAC header consisting of one or more sub headers, each of the sub headers respectively corresponding to each of the random access responses; and

a processor configured to process information on a specific random access response among the random access responses based on information on the MAC PDU,

wherein all of the sub headers are in a first part of the MAC PDU and all of the random access responses are in a second part of the MAC PDU subsequent to the first part.

2. The UE of claim 1, wherein the receiver is configured to receive the MAC PDU via a downlink shared channel.

3. The UE of claim 1, wherein the specific random access response comprises uplink resource information allocated to the UE, a temporary identifier of the UE and a timing synchronization related variable.

4. The method of claim 3, wherein the transmitter is further configured to transmit an uplink signal using the uplink resource information.

5. The method of claim 1, wherein the processor is configured to process the information on the specific random access response when the specific random access response contains an identifier corresponding to the random access preamble transmitted by the transmitter.

6. A network controlling a random access of a user equipment (UE) in a mobile communication system, the network comprising:

a receiver configured to receive a specific random access preamble from the UE; and

a transmitter configured to transmit a medium access control packet data unit (MAC PDU) comprising one or more random access responses and a MAC header consisting of one or more sub headers, each of the sub headers respectively corresponding to each of the random access responses,

wherein all of the sub headers are in a first part of the MAC PDU and all of the random access responses are in a second part of the MAC PDU subsequent to the first part.

7. The network of claim 6, wherein the transmitter is configured to transmit the MAC PDU via a downlink shared channel.

8. The network of claim 6, wherein one of the random access responses comprises uplink resource information allocated to the UE, a temporary identifier of the UE and a timing synchronization related variable.