RCC CONNECTION ESTABLISHMENT METHOD AND APPARATUS IN COMMUNICATION SYSTEM BACKGROUND OF THE INVENTION

• US 20110222482A1
• Filed: 12/14/2009
• Published: 09/15/2011
• Est. Priority Date: 12/16/2008
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Lee, Jung Hun
• Granted Patent: US 9,306,710 B2
• Time in Patent Office: Days
• US Class Current: 370/328
• CPC Class Codes: H04L 1/189 Transmission or retransmission of more than one copy of a message
• CPC Class Codes: H04L 2001/0092 Error control systems characterised by the topology of the transmission link

Abstract

A method and apparatus for establishing a RRC connection between a base station and a mobile station in a wire-less communication system is provided. A packet transmission method for a communication system including a transmitter and a receiver according to the present invention includes transmitting, at the transmitter, a packet; retransmitting, when a confirmation message is not received in response to the packet, the packet; and stopping, when the confirmation message is received in response to the packet, retransmission of the packet. An RRC connection establishment method and apparatus of the present invention allows the transmitter to retransmit the RRC Connection Response message periodically until the RRC Connection Complete message is received from the receiver, thereby improving the RRC connection success probability.

Claims

1. A packet transmission method for a communication system including a transmitter and a receiver, comprising:

transmitting, at the transmitter, a packet;

retransmitting, when a confirmation message is not received in response to the packet, the packet; and

stopping, when the confirmation message is received in response to the packet, retransmission of the packet.

2. The packet transmission method of claim 1, wherein retransmitting the packet is performed periodically until the confirmation message is received.

3. The packet transmission method of claim 2, wherein the transmitter comprises a Radio Resource Control (RRC) entity and a Radio Link Control (RLC) entity, and retransmitting the packet comprises triggering, at one of the RRC entity and the RLC entity, retransmission of the packet periodically at the time interval.

4. The packet transmission method of claim 1, wherein transmitting a packet is performed in response to a connection request message transmitted by the receiver, and the packet is a connection response message transmitted by the transmitter in response to the connection request message, and the confirmation message is a connection complete message transmitted by the receiver in response to the connection response message.

5. A packet reception method for a communication system including a transmitter and a receiver, comprising:

receiving, at the receiver, a packet transmitted by the transmitter; and

transmitting a confirmation message indicating receipt of the packet to the transmitter;

wherein the packet is initially transmitted or retransmitted when the confirmation message is not received.

6. The packet reception method of claim 5, wherein the packet is retransmitted periodically at a time interval until the confirmation message is received.

7. The packet reception method of claim 6, wherein the transmitter comprises a Radio Resource Control (RRC) entity and a Radio link Control (RLC) entity, and the packet is transmitted by the RRC entity periodically at a predetermined interval time until the confirmation message is received or by the RLC entity periodically at a predetermined time interval until the confirmation message is received.

8. The packet reception method of claim 5, further comprising transmitting a connection request message to the transmitter, wherein the packet is a connection response message transmitted by the transmitter in response to the connection request message, and the confirmation message is a connection complete message transmitted by the receiver in response to the connection response message.

9. A packet transmission apparatus for a communication system, comprising:

a Radio Resource Control (RRC) entity which generates a packet; and

a Radio Link Control (RLC) entity which transmits the packet to a reception apparatus, retransmits the packet when a confirmation message is not received in response to the packet, stops retransmission of the packet when the confirmation message is received in response to the packet, and delivers the confirmation message to the RRC entity.

10. The packet transmission apparatus of claim 9, wherein the packet is retransmitted periodically at a predetermined time interval until the confirmation message is received.

11. The packet transmission apparatus of claim 10, wherein the packet is transmitted by the RRC entity periodically at a predetermined interval time until the confirmation message is received or by the RLC entity periodically at a predetermined time interval until the confirmation message is received.

12. The packet transmission apparatus of claim 9, wherein the RRC entity generates the packet in response to a connection request message transmitted by the reception apparatus, the packet is a connection response message transmitted by the transmitter in response to the connection request message, and the confirmation message is a connection complete message transmitted by the receiver in response to the connection response message.

13. A packet reception apparatus for a wireless communication system, comprising:

a Physical/Media Access Control (PHY/MAC) entity and a Radio Link Control (RLC) entity which receives a packet transmitted by a transmission apparatus; and

a Radio Resource Control (RRC) entity which transmits a confirmation message acknowledging receipt of the packet to the transmission apparatus,

wherein the packet is initially transmitted or retransmitted by the transmission apparatus when the confirmation message is not received in a predetermined time.

14. The packet reception apparatus of claim 13, wherein the transmission apparatus retransmits the packet periodically at a predetermined time interval until the confirmation message is received.

15. The packet reception apparatus of claim 13, wherein the RRC entity transmits a connection request message, the packet is a connection response message transmitted by the transmitter in response to the connection request message, and the confirmation message is a connection complete message transmitted by the receiver in response to the connection response message.