Wireless communication apparatus, wireless communication control apparatus, wireless communication method, wireless communication program storage medium, wireless communication control method, and wireless communication control program storage medium

• US 20100199139A1
• Filed: 04/01/2010
• Published: 08/05/2010
• Est. Priority Date: 10/03/2007
• Status: Active Grant

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: Soejima, Yoshinori, Okamoto, Shinya, Shimizu, Hirotoshi, Obuchi, Kazuhisa, Shinohara, Chiaki, Yamasaki, Miki, Otonari, Akihide
• Granted Patent: US 8,656,240 B2
• Time in Patent Office: Days
• US Class Current: 714/748
• CPC Class Codes: H04L 1/08 by repeating transmission, e.g. Verdan system H04L1/1858 and H04L1/189 take precedence
• CPC Class Codes: H04L 1/1829 Arrangements specially adapted for the receiver end

Abstract

A wireless communication apparatus that uses a communication protocol to transmit and receive data with a data check bit, including a received data determining section that performs a data check for received data by using the data check bit to determine whether the data is error; a received result transmitting section that, when determined to be error, discards the data and transmits a retransmission request to other wireless communication apparatus of the transmitting origin, whereas determined to be not error, transmits a message indicating that the data is normal to the other wireless communication apparatus of the transmitting origin; and a retransmission asking section that determines whether a format of the data is incorrect or normal, and when determined to be normal, passes the data to predetermined processing, whereas when determined to be incorrect, discards the data and asks the received result transmitting section to request retransmission of the data.

Claims

1. A wireless communication apparatus, wherein the wireless communication apparatus uses a communication protocol to transmit and receive data with a data check bit, and

the wireless communication apparatus comprises:

a receiving section that receives the data from other wireless communication apparatus of a transmitting origin;

a received data determining section that performs a data check for the received data by using the data check bit and performs a determination whether or not the data is an error;

a received result transmitting section that, when a result of the determination is an error, discards the data and transmits a retransmission request for the data to the other wireless communication apparatus of the transmitting origin, and when a result of the determination is not an error, transmits a message indicating that the data is normal to the other wireless communication apparatus of the transmitting origin;

a format determining section that determines whether a format of the data is incorrect or normal, and that passes the data to predetermined processing when the format of the data is determined to be normal; and

a retransmission asking section that discards the data and asks the received result transmitting section to request retransmission of the data when the format of the data is determined to be incorrect.

2. The wireless communication apparatus according to claim 1, wherein the communication protocol of the wireless communication apparatus includes a MAC (Medium Access Control) protocol, the data check is a CRC (Cyclic Redundancy Check), and the predetermined processing is a RLC (Radio Link Control).

3. The wireless communication apparatus according to claim 1, further comprising a transmitting section that transmits the data toward another wireless communication apparatus of a transmitting destination, wherein the retransmission asking section, when the format of the data is determined to be incorrect, discards the data and instead of asking the received result transmitting section to request retransmission of the data, asks the transmitting section to embed a retransmission request in communication control information of the data to be transmitted to the other wireless communication apparatus of the transmitting origin and to transmit the data.

4. The wireless communication apparatus according to claim 3, wherein the retransmission asking section asks the transmitting section to further embed a retransmission request including reception time information of the received data in communication control information of the data to be transmitted to the other wireless communication apparatus of the transmitting origin and to transmit the data.

5. The wireless communication apparatus according to claim 4, wherein the wireless communication apparatus further comprises a plurality of antennas and performs MINO (Multiple-Input Multiple-Output) communication by using the plurality of antennas, and

the retransmission asking section asks the transmitting section to embed a retransmission request further including antenna identification information as well as the reception time information of the received data in communication control information of the data to be transmitted to the other wireless communication apparatus of the transmitting origin and to transmit the data.

6. The wireless communication apparatus according to claim 3, wherein the communication protocol of the wireless communication apparatus includes a MAC (Medium Access Control) protocol, the data check is a CRC (Cyclic Redundancy Check), the communication control information is MAC control information, and the predetermined processing is a RLC (Radio Link Control).

7. The wireless communication apparatus according to claim 1, wherein the retransmission asking section does not perform the retransmission request of the data anymore when a format of the retransmitted data has a same incorrect content.

8. A wireless communication control apparatus, wherein

the wireless communication control apparatus is used in a wireless communication apparatus which uses a communication protocol to transmit and receive data with a data check bit and which includes a receiving section and a received result transmitting section, to control communication, and

the wireless communication control apparatus comprises:

a received data determining section that performs a data check for the received data by using the data check bit and performs a determination whether or not the data is an error;

a received result transmission instructing section that, when a result of the determination is an error, discards the data and instructs the received result transmitting section to transmit a retransmission request of the data to the other wireless communication apparatus of the transmitting origin, and when a result of the determination is not an error, instructs the received result transmitting section to transmit a message indicating that the data is normal to the other wireless communication apparatus of the transmitting origin;

a format determining section that determines whether a format of the data is incorrect or normal, and that passes the data to predetermined processing when the format of the data is determined to be normal; and

a retransmission asking section that discards the data and asks the received result transmitting section to request retransmission of the data when the format of the data is determined to be incorrect.

9. The wireless communication control apparatus according to claim 8, wherein the wireless communication apparatus further comprises a transmitting section, and

the retransmission asking section that, when the format of the data is determined to be incorrect, discards the data and instead of asking the received result transmitting section to request retransmission of the data, asks the transmitting section to embed a retransmission request in communication control information of the data to be transmitted to the other wireless communication apparatus of the transmitting origin.

10. A wireless communication method, wherein

the wireless communication method uses a wireless communication apparatus which uses a communication protocol to transmit and receive data with a data check bit and which includes a receiving section, a received data determining section, a received result transmitting section, a format determining section, and a retransmission asking section,

the wireless communication method comprises:

receiving the data from other wireless communication apparatus of a transmitting origin by using the receiving section;

received-data-determining of, by using the received data determining section, performing a data check for the received data by using the data check bit and determining whether or not the data is an error;

received-result-transmitting of, by using the received result transmitting section, discarding the data and transmitting a retransmission request of the data to the other wireless communication apparatus of the transmitting origin when a result of the determination is an error, and transmitting a message indicating that the data is normal to the other wireless communication apparatus of the transmitting origin when a result of the determination is not an error;

format-determining of, by using the format determining section, determining whether a format of the data is incorrect or normal, and passing the data to predetermined processing when the format of the data is determined to be normal; and

retransmission-asking of, by using the retransmission asking section, discarding the data and asking the received result transmitting section to request retransmission of the data when the format of the data is determined to be incorrect.

11. The wireless communication method according to claim 10, wherein the wireless communication apparatus further comprises a transmitting section, and

the wireless communication method further comprises:

transmitting data including communication control information in which a retransmission request is embedded, to the other wireless communication apparatus of the transmitting origin by using the transmitting section, and

discarding the data when the format of the data is determined to be incorrect and, instead of asking the received result transmitting section to request the retransmission of the data, asking the transmitting section to embed the retransmission request in communication control information of the data to be transmitted to the other wireless communication apparatus of the transmitting origin and to transmit the data, by using the retransmission asking section in the retransmission-asking.

12. A storage medium storing a wireless communication program that causes a wireless communication apparatus to perform reception processing of data, wherein the wireless communication apparatus uses a communication protocol to transmit and receive data with a data check bit and includes a receiving section, a received data determining section, a received result transmitting section, a format determining section, and a retransmission asking section,

the wireless communication program causing the wireless communication apparatus to perform:

receiving the data from other wireless communication apparatus of a transmitting origin by using the receiving section;

received-data-determining of, by using the received data determining section, performing a data check for the received data by using the data check bit and determining whether or not the data is an error;

received-result-transmitting of, by using the received result transmitting section, discarding the data and transmitting a retransmission request of the data to the other wireless communication apparatus of the transmitting origin when a result of the determination is an error, and transmitting a message indicating that the data is normal to the other wireless communication apparatus of the transmitting origin when a result of the determination is not an error;

format-determining of, by using the format determining section, determining whether a format of the data is incorrect or normal, and passing the data to predetermined processing when the format of the data is determined to be normal; and

retransmission-asking of, by using the retransmission asking section, discarding the data and asking the received result transmitting section to request retransmission of the data when the format of the data is determined to be incorrect.

13. The storage medium storing the wireless communication program according to claim 12, wherein the wireless communication apparatus further comprises a transmitting section, and

the wireless communication program further uses the transmitting section to cause the wireless communication apparatus to transmit data to the other wireless communication apparatus of the transmitting origin, and

discarding the data, in the retransmission-asking, when the format of the data is determined to be incorrect, and, instead of asking the received result transmitting section to request the retransmission of the data, asking the transmitting section to embed the retransmission request in communication control information of the data to be transmitted to the other wireless communication apparatus of the transmitting origin and to transmit the data.

14. A wireless communication control method, wherein

the wireless communication control method which uses a wireless communication control apparatus used in a wireless communication apparatus that uses a communication protocol to transmit and receive data with a data check bit and that includes a receiving section and a received result transmitting section, to control communication, and

the wireless communication control method comprises:

received-data-determining of performing a data check for the received data by using the data check bit and determining whether or not the data is an error;

received-result-transmission-instructing of discarding the data and instructing the received result transmitting section to transmit a retransmission request of the data to the other wireless communication apparatus of the transmitting origin when a result of the determination is an error, and instructing the received result transmitting section to transmit a message indicating that the data is normal to the other wireless communication apparatus of the transmitting origin when a result of the determination is not an error;

format-determining of determining whether a format of the data is incorrect or normal, and passing the data to predetermined processing when the format of the data is determined to be normal; and

retransmission-asking of discarding the data and asking the received result transmitting section to request retransmission of the data when the format of the data is determined to be incorrect.

15. The wireless communication control method according to claim 14, wherein the wireless communication apparatus further comprises a transmitting section, and

the wireless communication control method further comprises:

transmitting data including communication control information in which a retransmission request is embedded, to the other wireless communication apparatus of the transmitting origin, by using the transmitting section, and

discarding the data when the format of the data is determined to be incorrect and, instead of asking the received result transmitting section to request the retransmission of the data, asking the transmitting section to embed the retransmission request in communication control information of the data to be transmitted to the other wireless communication apparatus of the transmitting origin, by using the retransmission asking section in the retransmission-asking.

16. A storage medium storing a wireless communication control program that causes a wireless communication control apparatus to perform reception processing of data, wherein the wireless communication control apparatus is used in a wireless communication apparatus that uses a communication protocol to transmit and receive data with a data check bit and includes a receiving section and a received result transmitting section, to control information,

the wireless communication control program causing the wireless communication apparatus to perform:

received-data-determining of performing a data check for the received data by using the data check bit and determining whether or not the data is an error;

received-result-transmission-instructing of discarding the data and instructing the received result transmitting section to transmit a retransmission request of the data to the other wireless communication apparatus of the transmitting origin when a result of the determination is an error, and instructing the received result transmitting section to transmit a message indicating that the data is normal to the other wireless communication apparatus of the transmitting origin when a result of the determination is not an error;

format-determining of determining whether a format of the data is incorrect or normal, and passing the data to predetermined processing when the format of the data is determined to be normal; and

retransmission-asking of discarding the data and asking the received result transmitting section to request retransmission of the data when the format of the data is determined to be incorrect.

17. The storage medium storing the wireless communication control program according to claim 16, wherein the wireless communication apparatus further comprises a transmitting section, and

the wireless communication control program further uses the transmitting section to cause the wireless communication apparatus to perform:

transmitting data to the other wireless communication apparatus of the transmitting origin, by using the transmitting section, and

discarding, in the retransmission-asking, the data when the format of the data is determined to be incorrect and, instead of asking the received result transmitting section to request the retransmission of the data, asking the transmitting section to embed the retransmission request in communication control information of the data to be transmitted to the other wireless communication apparatus of the transmitting origin.