Wireless communication method and apparatus for detecting and correcting transmission errors

• US 7,430,206 B2
• Filed: 05/09/2003
• Issued: 09/30/2008
• Est. Priority Date: 05/10/2002
• Status: Expired due to Fees

• Current Assignee: Interdigital Technology Corporation (InterDigital, Inc.)
• Original Assignee: Interdigital Technology Corporation (InterDigital, Inc.)
• Inventors: Shin, Sung-Hyuk, Terry, Stephen E., Miller, James M., Chao, Yi-Ju
• Primary Examiner(s): Nguyen; Chau
• Assistant Examiner(s): Kang; Suk Jin
• Application Number:
  US10/434,882
• Publication Number:
  US 20040004954A1
• Time in Patent Office: 1,971 Days
• Field of Search: 370/473, 370/349
• US Class Current: 370/394
• CPC Class Codes: H04L 1/0026 Transmission of channel quality indication
• CPC Class Codes: H04L 1/1628 List acknowledgements, i.e. the acknowledgement message consisting of a list of identifiers, e.g. of sequence numbers H04L1/1614 takes precedence
• 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 1/1848 Time-out mechanisms
• CPC Class Codes: H04L 1/1887 Scheduling and prioritising arrangements
• CPC Class Codes: H04L 2001/125 Arrangements for preventing errors in the return channel

Abstract

A wireless communication system is configured to monitor transmission sequence numbers (TSNs) assigned to protocol data units (PDUs) processed by the system. The system includes at least one user equipment (UE) having, a queue, and a Node B in communication with the UE. The UE determines that a data block having an expected TSN was not received, and generates a TSN status report message. The Node B retransmits a data block including the expected TSN to the UE in response to the TSN status report message. The retransmitted data block is placed in a specific location in the queue designated by the TSN status report message.

Claims

1. A method of detecting and correcting transmission errors, the method comprising:

receiving a plurality of data blocks via a first transmission, each data block including a unique transmission sequence number (TSN);

determining that a data block having an expected TSN was not received via the first transmission;

generating a TSN status report message that identifies a missing TSN corresponding to the data block that was not received via the first transmission, the TSN status report message including a first set of bits used to identify the missing TSN and a second set of bits used to identify a particular reordering queue to which the missing TSN is destined;

retransmitting a data block including the missing TSN via a second transmission in response to receiving the TSN status report message; and

placing the retransmitted data block in a specific location in the particular reordering queue designated by the second set of bits of the TSN status report message.

2. The method of claim 1 wherein the TSN status report message is transmitted over an uplink dedicated physical control channel-high speed (DPCCH-HS).

3. The method of claim 2 wherein the DPCCH-HS has a structure with three fields including:

a transmission status field for carrying acknowledgement/negative acknowledgement (ACK/NACK) information;

a channel qualifier identifier (CQI) field; and

a TSN field.

4. The method of claim 3 wherein each field is located in one or more timeslots of a transmission time interval (TTI) of the DPCCH-HS.

5. The method of claim 1 wherein the TSN status report message includes a reordering queue indicator used to place the retransmitted data block in the specific location in the particular reordering queue.

6. The method of claim 1, further comprising:

detecting a signal interpreted to be an acknowledgement (ACK); and

based on the TSN status report message, determining that the detected signal was interpreted incorrectly and is actually a negative acknowledgement (NACK).

7. A user equipment (UE) comprising:

a reordering queue; and

a first medium access control (MAC) entity configured to generate a transmission sequence number (TSN) status report message, wherein the UE is configured to receive a plurality of data blocks via a first transmission, each data block including a unique TSN and determine when a data block having an expected TSN was not received via the first transmission, and the TSN status report message identifies a missing TSN corresponding to the data block that was not received by the UE via the first transmission, the TSN status report message including a first set of bits used to identify the missing TSN and a second set of bits used to identify the reordering queue to which the missing TSN is destined.

8. The UE of claim 7 wherein the TSN status report message is transmitted over an uplink dedicated physical control channel-high speed, DPCCH-HS.

9. The UE of claim 8 wherein the DPCCH-HS has a structure with three fields including:

a transmission status field for carrying acknowledgement/negative acknowledgement (ACK/NACK) information;

a channel qualifier identifier (CQI) field; and

a TSN field.

10. The UE of claim 9 wherein each field is located in one or more timeslots of a transmission time interval (TTI) of the DPCCH-HS.

11. The UE of claim 7 wherein the TSN status report message includes a reordering queue indicator used to place the retransmitted data block in the specific location in the reordering queue.

12. The UE of claim 7 wherein the TSN status report message indicates that a signal interpreted as being an acknowledgement (ACK) was interpreted incorrectly and is actually a negative acknowledgement (NACK).

13. A method of detecting and correcting transmission errors, the method comprising:

sending a first transmission that includes a plurality of data blocks, each data block including a unique transmission sequence number (TSN);

receiving the first transmission; and

sending a TSN status report message that includes a first set of bits that identify a missing TSN corresponding to a data block that was not received via the first transmission, and a second set of bits that identify a particular reordering queue to which the missing TSN is destined.

14. The method of claim 13 further comprising:

receiving the TSN status report message;

sending a data block including the missing TSN via a second transmission; and

placing the data block including the missing TSN in a specific location in the particular reordering queue designated by the second set of bits of the TSN status report message.

15. The method of claim 14 wherein the TSN status report message is transmitted over an uplink dedicated physical control channel-high speed (DPCCH-HS).

16. The method of claim 15 wherein the DPCCH-HS has a structure with three fields including:

a transmission status field for carrying acknowledgement/negative acknowledgement (ACK/NACK) information;

a channel qualifier identifier (CQI) field; and

a TSN field.

17. The method of claim 15 wherein each field is located in one or more timeslots of a transmission time interval (TTI) of the DPCCH-HS.

18. The method of claim 14 wherein the TSN status report message includes a reordering queue indicator used to place the data block including the missing TSN in the specific location in the particular reordering queue.

19. The method of claim 14, further comprising:

detecting a signal interpreted to be an acknowledgement (ACK); and

based on the TSN status report message, determining that the detected signal was interpreted incorrectly and is actually a negative acknowledgement (NACK).