Packet receiving and transmitting method

• US 8,891,377 B2
• Filed: 07/06/2007
• Issued: 11/18/2014
• Est. Priority Date: 07/07/2006
• Status: Active Grant

• Current Assignee: Electronics and Telecommunications Research Institute, Samsung Electronics Co. Ltd.
• Original Assignee: Electronics and Telecommunications Research Institute, Samsung Electronics Co. Ltd.
• Inventors: Lim, Kwang-Jae, Yoon, Chul-Sik
• Primary Examiner(s): Huq, Obaidul
• Application Number:
  US12/307,731
• Publication Number:
  US 20090252089A1
• Time in Patent Office: 2,692 Days
• Field of Search: 370/241, 370/252, 370/310, 370/345, 370/349, 370/351, 370/389, 370/392, 370/395.1, 370/395.3, 370/431, 370/436, 370/437, 370/464, 370/474
• US Class Current: 370/236
• CPC Class Codes: H04L 1/1614 using bitmaps
• CPC Class Codes: H04L 1/1812 Hybrid protocols; Hybrid automatic repeat request [HARQ]
• CPC Class Codes: H04W 28/04 Error control
• CPC Class Codes: H04W 28/18 Negotiating wireless communication parameters

Abstract

An embodiment of the invention provides a method of receiving packets from a transmitting station at a receiving station in a mobile communication system. The packet receiving method includes receiving a radio resource including a data packet and a packet indicator related to the data packet, identifying the packet indicator, and processing the data packet according to the content of the packet indicator. Another embodiment of the invention provides a method of transmitting packets from a transmitting station to a receiving station in a mobile communication system. The packet transmitting method includes receiving a response signal of a first data packet from the receiving station, allocating a second data packet to a radio resource according to the response signal, allocating a packet indicator related to the second data packet to the radio resource, and transmitting the second data packet and the packet indicator to the receiving station.

Claims

1. A method of receiving packets from a transmitting station at a receiving station in a mobile communication system, comprising:

receiving a radio resource including a packet indicator located in a header of the radio resource, and a data packet that is related to the packet indicator from the transmitting station;

identifying the packet indicator; and

processing the data packet according to the content of the packet indicator,

wherein the packet indicator includes a plurality of bits,

the packet indicator indicates a first indicator indicating that a new data packet is transmitted when the plurality of bits has a first value,

the packet indicator indicates a second indicator indicating that a previous data packet is retransmitted when the plurality of bits has a second value,

the packet indicator indicates a third indicator indicating that no data packet is transmitted when the plurality of bits has a third value,

the transmitting station is a mobile station, and the receiving station is a base station,

the method further comprises allocating, by the base station, the radio resource to the mobile station and transmitting, by the base station, a hybrid automatic repeat request response bitmap including the response signal in the form of a response bit composed of a plurality of bits to the mobile station, and

the hybrid automatic repeat request response bitmap includes a response index indicating the position of the response bit.

2. The packet receiving method of claim 1, wherein the packet indicator is arranged so that the receiving station detects the packet indicator related to the data packet before receiving the data packet in the radio resource.

3. The packet receiving method of claim 1, wherein, when the packet indicator is the first indicator, the processing of the data packet includes receiving the data packet as a new data packet and decoding the received data packet.

4. The packet receiving method of claim 1, wherein, when the packet indicator is the second indicator, the processing of the data packet includes:

recognizing the data packet as the previous data packet that is retransmitted;

combining a symbol of the data packet with a symbol of the previous data packet; and

decoding the combined data.

5. The packet receiving method of claim 1, wherein when the packet indicator is the third indicator, the data packet is not decoded during the processing of the data packet.

6. The packet receiving method of claim 1, further comprising, when the data packet is successfully received, transmitting an acknowledgement signal to the transmitting station indicating that the data packet is successfully received.

7. The packet receiving method of claim 1, further comprising, when the reception of the data packet fails, transmitting a negative acknowledgement signal to the transmitting station indicating that the reception of the data packet fails.

8. The packet receiving method of claim 1, wherein, when no data packet is transmitted, the base station transmits a response signal to the mobile station indicating that the data packet is not decoded.

9. The packet receiving method of claim 1 wherein the base station transmits a holding response signal for allowing the mobile station to temporarily stop transmitting the data packet to the base station.

10. A method of transmitting packets from a transmitting station to a receiving station in a mobile communication system, comprising:

receiving a response signal of a first data packet from the receiving station;

allocating a second data packet to a radio resource according to the response signal;

allocating a packet indicator related to the second data packet to a header of the radio resource; and

transmitting the second data packet and the packet indicator to the receiving station,

wherein the packet indicator includes a plurality of bits,

the packet indicator indicates a first indicator indicating that a new data packet is transmitted when the plurality of bits has a first value,

the packet indicator indicates a second indicator indicating that a previous data packet is retransmitted when the plurality of bits has a second value,

the packet indicator indicates a third indicator indicating that no data packet is transmitted when the plurality of bits has a third value,

the transmitting station is a mobile station, and the receiving station is a base station,

the base station allocates the radio resource to the mobile station and transmits a hybrid automatic repeat request response bitmap including the response signal in the form of a response bit composed of a plurality of bits to the mobile station, and

the hybrid automatic repeat request response bitmap includes a response index indicating the position of the response bit.

11. The packet transmitting method of claim 10, wherein the packet indicator is arranged so that the receiving station detects the packet indicator related to the data packet before receiving the data packet in the radio resource.

12. The packet transmitting method of claim 10, wherein, when the response signal indicates that the first data packet is successfully received, the first packet indicator is set as the packet indicator.

13. The packet transmitting method of claim 10, wherein, when the packet indicator is the second indicator, the receiving station recognizes the second data packet as the first data packet that is retransmitted, combines a symbol of the second data packet with a symbol of the first data packet, and decodes the combined data.

14. The packet transmitting method of claim 10, wherein, when the packet indicator is the third indicator, the receiving station does not receive the second data packet.

15. The packet transmitting method of claim 10, wherein, when the base station successfully receives the first data packet, the base station transmits the hybrid automatic repeat request response bitmap including an acknowledgement signal indicating that the first data packet is successfully received to the mobile station.

16. The packet transmitting method of claim 10, wherein, when the base station fails to receive the first data packet, the base station transmits the hybrid automatic repeat request response bitmap including a negative acknowledgement signal indicating that the reception of the first data packet fails to the mobile station.

17. The packet transmitting method of claim 10, wherein, when the base station requests the mobile station to temporarily stop transmitting the second data packet, the base station transmits the hybrid automatic repeat request response bitmap including a holding response signal indicating that the transmission of the second data packet should stop to the mobile station.

18. The packet transmitting method of claim 17, wherein, when the base station requests the mobile station to resume transmitting the second data packet, the base station transmits the hybrid automatic repeat request response bitmap including a transmission resume response signal indicating that the transmission of the second data packet should be resumed to the mobile station.

19. The packet transmitting method of claim 18, wherein, when receiving the transmission resume response signal, the mobile station resumes transmitting the second data packet.