초록 ▼

A method of retransmitting a data frame and a network apparatus using the method are provided. In the method performed in a wireless network, a first network apparatus transmits a data frame requesting a response frame. A second network apparatus determines a type of response frame according to a re

A method of retransmitting a data frame and a network apparatus using the method are provided. In the method performed in a wireless network, a first network apparatus transmits a data frame requesting a response frame. A second network apparatus determines a type of response frame according to a reception mode of the data frame. The second network apparatus transmits the determined type of response frame to the first network apparatus. The first network apparatus retransmits the data frame according to the type of the response frame transmitted to the first network apparatus.

대표청구항 ▼

What is claimed is: 1. A method of retransmitting a data frame in a wireless network, comprising: a first network apparatus transmitting a data frame requesting a response frame to a second network apparatus; the second network apparatus determining a reception mode of the data frame the second net

What is claimed is: 1. A method of retransmitting a data frame in a wireless network, comprising: a first network apparatus transmitting a data frame requesting a response frame to a second network apparatus; the second network apparatus determining a reception mode of the data frame the second network apparatus transmitting a response frame to the first network apparatus, wherein the response frame is of a first type or a second type based on the reception mode of the data frame; and the first network apparatus retransmitting the data frame according to a type of the response frame transmitted to the first network apparatus; wherein: the wireless network conforms to the IEEE 802.15.3 standard; the response frame has an "Imm-ACK" frame structure conforming to the IEEE 802.15.3 standard; and a response frame of the first type is distinguished from a response frame of the second type using a value of a frame type field comprised in the Imm-ACK frame. 2. The method of claim 1, wherein the reception mode is one of a first reception mode indicating that the data frame was received normally by the second network apparatus, and a second reception mode indicating that the data frame was never received or was received abnormally by the second network apparatus. 3. The method of claim 2, wherein the second network apparatus transmits a response frame of the first type, indicating that the data frame was received normally, when the data frame is of the first reception mode, and the second network apparatus transmits a response frame of the second type, indicating the data frame was never received or was received abnormally, a when the data frame is of the second reception mode. 4. The method of claim 3, wherein: the first network apparatus retransmits the data frame to the second network apparatus when the response frame transmitted to the first network apparatus is of the second type. 5. The method of claim 4, wherein: the first network apparatus does not retransmit the data frame to the second network apparatus when the response frame transmitted to the first network apparatus is of the first type. 6. A method of retransmitting a data frame in a wireless network, comprising: a first network apparatus transmitting a plurality of data frames to a second network apparatus; the first network apparatus transmitting a request frame requesting a response frame to the second network apparatus; the second network apparatus determining a reception mode of each of the plurality of data frames transmitted by the first network apparatus; the second network apparatus transmitting a response frame to the first network apparatus, wherein the response frame is of a first type or a second type based on the reception modes of the plurality of data frames; and the first network apparatus, in response to the reception of the response frame, performing data frame retransmission according to the information contained in the response frame; wherein the reception mode comprises: a first reception mode indicating that the data frame was received normally, or a second reception mode indicating that the data frame was never received or was received abnormally; wherein the second network apparatus transmits a response frame of the first type, indicating the non-reception or the abnormal reception of those data frames of the second reception mode when, of the plurality of data frames transmitted by the first network apparatus, the number of data frames of the first reception mode is greater than the number of data frames of the second reception mode; and wherein the second network apparatus transmits a response frame of the second type, indicating normal reception of those data frames of the first reception mode when, of the plurality of data frames transmitted by the first network apparatus, the number of data frames of the second reception mode is greater than the number of data frames of the first reception mode. 7. The method of claim 6, wherein: the response frame of the first type comprises: an ACKed field indicating the number of data frames of the first mode, and for each of the data frames of the second mode, a corresponding ID field including identification information for the data frame; and the response frame of the second type comprises: a NACKed field indicating the number of data frames of the second mode, and for each of the data frames of the first mode, a corresponding ID field including identification information for the data frame. 8. The method of claim 7, wherein: when the response frame is of the first type, the first network apparatus retransmits those data frames of the second reception mode corresponding to the identification information in the ID fields; and when the response frame is of the second type, the first network apparatus retransmits those data frames of the second reception mode corresponding to the information in the NACKed field. 9. The method of claim 8, wherein: the wireless network conforms to the IEEE 802.15.3 standard; the response frame has a "Delayed ACK" frame structure conforming to the IEEE 802.15.3 standard; and a response frame of the first type is distinguished from a response frame of the second type using a value of a frame type field comprised in a MAC header in the Delayed ACK frame. 10. A network apparatus in a wireless network, comprising: a frame transceiver configured such that, when a data frame is not received or is abnormally received from an external apparatus, the frame transceiver transmits a response frame indicating the non-reception or the abnormal reception of the data frame to the external apparatus and then newly receives the data frame from the external apparatus; wherein: the wireless network conforms to the IEEE 802.15.3 standard, the response frame has an "Imm-ACK" frame structure conforming to the IEEE 802.15.3 standard and the response frame is of a type identified using a value of a frame type field comprised in the Imm-ACK frame. 11. A network apparatus in a wireless network, comprising: a frame transceiver configured to receive a plurality of data frames from an external apparatus, transmit a response frame to the external apparatus, and then newly receive at least one data frame, wherein the response frame is of a first type or a second type based on a reception mode of the plurality of data frames; wherein the reception mode is one of: a first reception mode indicating that the data frames were received normally, and a second reception mode indicating that a data frame was never received or was received abnormally; wherein the transceiver transmits a response frame of a first type, indicating the non-reception or the abnormal reception of those data frames of the second reception mode, when, of the plurality of data frames received by the transceiver, the number of data frames of the first reception mode is greater than the number of data frames of the second reception mode; and wherein the transceiver transmits a response frame of a second type, indicating the normal reception of those data frames of the first reception mode, when, of the plurality of data frames received by the transceiver, the number of data frames of the second reception mode is greater than the number of data frames of the first reception mode. 12. The apparatus of claim 11, wherein: the response frame of the first type comprises: an ACKed field indicating the number of data frames of the first mode, and for each of the data frames of the second mode, a corresponding ID field including identification information for the data frame; and the response frame of the second type comprises: a NACKed field indicating the number of data frames of the second mode, and for each of the data frames of the first mode, a corresponding ID field including identification information for the data frame. 13. The network apparatus of claim 12, wherein when the response frame is of the first type, the transceiver receives a retransmission of those data frames of the second reception mode corresponding to the identification information in the ID fields; and when the response frame is of the second type, the transceiver receives a retransmission of those data frames of the second reception mode corresponding to the information in the NACKed field. 14. The network apparatus of claim 12, wherein: the wireless network conforms to the IEEE 802.15.3 standard, the response frame has a "Delayed ACK" frame structure conforming to the IEEE 802.15.3 standard, and a response frame of the first type is distinguished from a response frame of the second type using a value of a frame type field comprised in a MAC header in the Delayed ACK frame.