Wireless communication method and system for detecting and correcting transmission errors

• US 7,124,350 B2
• Filed: 05/07/2003
• Issued: 10/17/2006
• Est. Priority Date: 05/07/2002
• Status: Expired due to Fees

• Current Assignee: Interdigital Technology Corporation (InterDigital, Inc.)
• Original Assignee: Interdigital Technology Corporation (InterDigital, Inc.)
• Inventors: Dick, Stephen G., Miller, James M., Chao, Yi-Ju
• Primary Examiner(s): Decady, Albert
• Assistant Examiner(s): GANDHI, DIPAKKUMAR B
• Application Number:
  US10/431,089
• Publication Number:
  US 20030235162A1
• Time in Patent Office: 1,259 Days
• Field of Search: 714/700, 714/699, 714/100, 714/56, 714/48, 714/43, 714/712, 714/776, 370/252, 370/242
• US Class Current: 714/776
• CPC Class Codes: H04L 1/0026 Transmission of channel quality indication
• 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 2001/125 Arrangements for preventing errors in the return channel

Abstract

A wireless communication method and system for detecting and correcting transmission errors. The system includes at least one wireless transmit/receive unit (WTRU) in communication with a Node B. The Node B sends a transmission signal (e.g., containing a protocol data unit (PDU)) to the WTRU. The WTRU generates a revert message having a first field and a second field to indicate whether the transmission signal was successfully received at the WTRU. The WTRU inserts a negative acknowledgement (NACK) message or positive acknowledgement (ACK) message into the first field and inserts a respective channel quality identifier (CQI) value corresponding to a worst or best possible value of CQI into the second field. The WTRU transmits the revert message to the Node B which compares the contents of the first and second fields. The Node B resends the transmission signal to the WTRU if the contents of the first and second fields are not logically consistent.

Claims

1. A method for detecting and correcting transmission errors in a wireless communication system, the method comprising:

(a) sending a transmission signal to a destination;

(b) generating a Revert Message to indicate whether the transmission signal was successfully received at the destination, the Revert Message having a first field and a second field;

(c) inserting a negative acknowledgement (NACK) message into the first field;

(d) inserting a channel quality identifier (CQI) value into the second field;

(e) transmitting the Revert Message;

(f) generating an error message in response to receiving the transmitted Revert Message, if the CQL value is set to a best possible value which is not logically consistent with the NACK message.

2. The method of claim 1 further comprising:

(g) resending the transmission signal to the destination in response to the error message.

3. A method for detecting and correcting transmission errors in a wireless communication system, the method comprising:

(a) sending a transmission signal to a destination;

(b) generating a Revert Message to indicate whether the transmission signal was successfully received at the destination, the Revert Message having a first field and a second field;

(c) inserting a positive acknowledgement (ACK) message into the first field;

(d) inserting a channel quality identifier (CQI) value into the second field;

(e) transmitting the Revert Message; and

(f) generating an error message in response to receiving the transmitted Revert Message, if the CQI value is set to a worst possible value which is not logically consistent with the ACK message.

4. The method of claim 3 further comprising:

(g) resending the transmission signal to the destination in response to the error message.

5. A wireless communication system for detecting and correcting transmission errors, the system comprising:

(a) means for sending a transmission signal to a destination;

(b) means for generating a Revert Message to indicate whether the transmission signal was successfully received at the destination, the Revert Message having a first field and a second field;

(c) means for inserting a negative acknowledgement (NACK) message into the first field;

(d) means for inserting a channel quality identifier (CQI) value into the second field;

(e) means for transmitting the Revert Message; and

(f) means for generating an error message in response to receiving the transmitted Revert Message, if the CQI value is set to a best possible value which is not logically consistent with the NACK message.

6. The system of claim 5 further comprising:

(g) means for resending the transmission signal to the destination in response to the error signal.

7. A wireless communication system for detecting and correcting transmission errors, the system comprising:

(a) means for sending a transmission signal to a destination;

(b) means for generating a Revert Message to indicate whether the transmission signal was successfully received at the destination, the Revert Message having a first field and a second field;

(c) means for inserting a positive acknowledgement (ACK) message into the first field;

(d) means for inserting a channel quality identifier (CQI) value into the second field;

(e) means for transmitting the Revert Message; and

(f) means for generating an error message in response to receiving the transmitted Revert Message, if the CQI value is set to a worst possible value which is not logically consistent with the ACK message.

8. The system of claim 7 further comprising:

(g) means for resending the transmission signal to the destination in response to the error signal.

9. A wireless communication system for detecting and correcting transmission errors, the system comprising:

(a) a Node B; and

(b) at least one Wireless Transmit/Receive Unit (WTRU) in communication with the Node B, wherein;

(i) the Node B sends a transmission signal to the WTRU;

(ii) the WTRU generates a Revert Message to indicate whether the transmission signal was successfully received at the WTRU, the Revert Message having a first field and a second field;

(iii) the WTRU inserts a negative acknowledgement (NACK) message into the first field;

(iv) the WTRU inserts a channel quality identifier (CQI) value into the second field;

(v) the WTRU transmits the Revert Message to the Node B;

(vi) the Node B compares the contents of the first field to the contents of the second field; and

(vii) the Node B resends the transmission signal to the WTRU, if the CQI value is set to a best possible value which is not logically consistent with the NACK message.

10. A wireless communication system for detecting and correcting transmission errors, the system comprising:

(a) a Node B; and

(b) at least one Wireless Transmit/Receive Unit (WTRU) in communication with the Node B, wherein;

(i) the Node B sends a transmission signal to the WTRU;

(ii) the WTRU generates a Revert Message to indicate whether the transmission signal was successfully received at the WTRU, the Revert Message having a first field and a second field;

(iii) the WTRU inserts a positive acknowledgement (ACK) message into the first field;

(iv) the WTRU inserts a channel quality identifier (CQI) value into the second field;

(v) the WTRU transmits the Revert Message to the Node B;

(vi) the Node B compares the contents of the first field to the contents of the second field; and

(vii) the Node B resends the transmission signal to the WTRU if the CQI value is set to a worst possible value which is not logically consistent with the ACK message.