Granted Patent B2

US 9,226,199 · App. 13/862,053 · Granted Dec 29, 2015

Abstract

Claims (36)

1. An apparatus comprising:

at least one processor;

memory storing computer program code;

wherein the computer program code is configured to, with the memory and the at least one processor, cause a receiving node of a wireless network to perform actions comprising at least:

upon receiving an integrity check field in a frame header of a media access control frame transmitted by a transmitting node of the wireless network, performing an integrity check on a received portion of the frame; and

upon determining that the frame is directed to the receiving node and prior to receiving a complete transmission of the media access control frame, performing an initial transmission to reserve a wireless network channel for use by the receiving node.

2. The apparatus of claim 1 , wherein the initial transmission comprises a special acknowledgement field transmitted if the receiving node has no data to send.

3. The apparatus of claim 1 , wherein the initial transmission comprises a media access control frame comprising a cyclic redundancy check field in a frame header if the receiving node has data to send.

4. The apparatus of claim 3 , wherein the cyclic redundancy check field is followed by a transmitted data packet from the transmitting node that is shorter than a received data packet from the receiving node, and wherein the received data packet is followed by a normal acknowledgement field beginning after the end of the received data packet.

5. The apparatus of claim 3 , wherein the cyclic redundancy check field is followed by a transmitted data packet from the transmitting node that is longer than a received data packet from the receiving node, and wherein the transmitted data packet is followed by a normal acknowledgement field beginning after the end of the transmitted data packet.

6. The apparatus of claim 1 , wherein the apparatus is a user equipment.

7. The apparatus of claim 1 , wherein the transmitting node is a base station.

8. The apparatus of claim 6 , wherein where the apparatus comprises:

user interface circuitry; and

wherein the computer program code is configured to, with the memory and the least one processor, facilitate user control of at least one function of the user equipment through use of a display.

9. An apparatus comprising:

at least one processor;

memory storing computer program code;

wherein the computer program code is configured to, with the memory and the at least one processor, cause a transmitting node of a wireless network to perform actions comprising at least:

initiating a transmission of a media access control frame of the transmitting node, in a full-duplex operation in a license exempt spectrum, the media access control frame including an integrity check field in a header of the frame; and

detecting, prior to completion of the transmission of the media access control frame, a transmission initiated by a receiving node after an integrity check using the integrity check field.

10. The apparatus of claim 9 wherein the integrity check field comprises a cyclic redundancy check field preceding a transmitted data packet from the transmitting node.

11. The apparatus of claim 10 , wherein, if the transmitted data packet is longer than a received data packet transmitted by the receiving node, the transmitted data packet is followed by a normal acknowledgement field.

12. The apparatus of claim 10 , wherein, if the transmitted data packet is shorter than a received data packet transmitted by the receiving node, the transmitted data packet is followed by a special acknowledgement field to reserve a wireless network channel for use by the transmitting node.

13. The apparatus of claim 9 , wherein the transmitting node is a base station.

14. A method comprising:

upon receiving, at a receiving node of a wireless network, an integrity check field in a frame header of media access control frame transmitted by a transmitting node of the wireless network, performing an integrity check on a received portion of the frame; and

upon determining that the frame is directed to the receiving node and prior to receiving a complete transmission of the media access control frame, performing an initial transmission to reserve a wireless network channel for use by the receiving node.

15. The method of claim 14 , wherein the initial transmission comprises a special acknowledgement field transmitted if the receiving node has no data to send.

16. The method of claim 14 , wherein the initial transmission comprises a cyclic redundancy check field of a media access control frame transmitted if the receiving node has data to send.

17. The method of claim 16 , wherein the cyclic redundancy check field is followed by a transmitted data packet from the transmitting node that is shorter than a received data packet from the receiving node, and wherein the received data packet is followed by a normal acknowledgement field beginning after the end of the received data packet.

18. The method of claim 16 , wherein the cyclic redundancy check field is followed by a transmitted data packet from the transmitting node that is longer than a received data packet from the receiving node, and wherein the transmitted data packet is followed by a normal acknowledgement field beginning after the end of the transmitted data packet.

19. The method of claim 18 , wherein the apparatus is a user equipment.

20. A method comprising:

initiating a transmission of a media access control frame of a transmitting node of a wireless network, in a full-duplex operation in a license exempt spectrum, the media access control frame including an integrity check field in a header of the frame; and

detecting, prior to completion of the transmission of the media access control frame, a transmission initiated by a receiving node after an integrity check using the integrity check field.

Assignments (9)