Communication device and communication method

Patent metadata

Field	Value
Publication number	US-11799681-B2
Application number	US-202217752882-A
Country	US
Kind code	B2
Filing date	May 25, 2022
Priority date	Jul 7, 2015
Publication date	Oct 24, 2023
Grant date	Oct 24, 2023

Abstract

[Object] To provide a communication device and a communication method which are capable of achieving both an improvement in reliability of communication in which a frame is transmitted to a plurality of destinations and effective use of wireless communication resources.
[Solution] The communication device includes: a communication unit configured to perform communication of a frame. The communication unit transmits a transmission acknowledgment request frame for a transmission acknowledgment response frame including frequency allocation information specifying a transmission frequency of the transmission acknowledgment response frame, and receives the transmission acknowledgment response frame which has undergone frequency division multiplexing, on the basis of the frequency allocation information.

First claim

The invention claimed is:

1. A communication device, comprising:
one or more circuits configured to perform communication of a data frame, wherein the one or more circuits are configured to perform control:
to transmit, by multicast after the communication of the data frame, a block acknowledgment request (BAR) frame for a block acknowledgment (BA) frame including frequency allocation information specifying a transmission frequency of the BA frame, the BA frame acknowledging the data frame communicated from the communication device, and
to receive the BA frame which is frequency division multiplexed, on the basis of the frequency allocation information, wherein
the BAR frame includes a receiver address field storing an identifier of a multicast group specifying destinations of the BAR frame and identification information fields specifying each of one or more destinations of the BAR frame, identification information being association identifiers of the one or more destinations selected from the multicast group, and
the frequency allocation information includes a first piece of information for each of the one or more destinations selected from the multicast group individually and a second piece of information common to all of the one or more destinations selected from the multicast group.

2. The communication device according to claim 1 ,
wherein the first piece of information for a first destination, which is included in the destinations of the multicast group, is sent after information of an identifier of the first destination, and
wherein the second piece of information includes information specifying a bandwidth of the transmission frequency.

3. The communication device according to claim 1 , wherein sum of the bandwidth of the transmission frequencies in the BAR frame is different from bandwidth allocated to the data frame.

4. The communication device according to claim 3 , wherein sum of the bandwidth of the transmission frequency in the BAR frame is narrower than bandwidth allocated to the data frame.

5. The communication device according to claim 3 , wherein sum of the bandwidth of the transmission frequency in the BAR frame is wider than bandwidth allocated to the data frame.

6. The communication device according to claim 1 , wherein bandwidth used for transmitting the BA frame is the same as bandwidth used for transmitting the data frame.

7. The communication device according to claim 6 ,
wherein bandwidth used for transmitting the BA frame is the same as bandwidth used for transmitting the BAR frame.

8. The communication device according to claim 1 ,
wherein the BAR frame includes transmission time information specifying a transmission time of the BA frame.

9. The communication device according to claim 1 , further comprising:
a processor being electrically connected to the communication device,
a memory,
an input, and
a display device.

10. The communication device according to claim 1 ,
wherein the BA frame is transmitted through the transmission frequency specified from the frequency allocation information.

11. The communication device according to claim 1 ,
wherein the BA frame is requested to acknowledge the data frame which is frequency division multiplexed or space division multiplexed.

12. The communication device according to claim 1 ,
wherein the BAR frame is aggregated with the data frame communicated from the communication device.

13. The communication device according to claim 1 , wherein
the BAR frame further includes transmission time information specifying a transmission time of the BA frame, and
the one or more circuits are configured to receive the BA frame, which is lime division multiplexed, on the basis of the transmission time information.

14. The communication device according to claim 1 , wherein
the one or more circuits are configured to receive the BA frame from the destination specified on the basis of identification information and the frequency allocation information.

15. The communication device according to claim 1 , wherein a center frequency for the transmission frequency differs in accordance with respective destinations of the BAR frame transmitted in a same period, and/or on the basis of at least one of the identification information for a destination of the BAR frame and time information of the communication device, and/or differs from a center frequency of the data frame.

16. The communication device according to claim 1 ,
wherein the frequency allocation information specifies a center frequency of the transmission frequency.

17. The communication device according to claim 1 ,
wherein bandwidths are different between at least some of the one or more destinations of the BAR frame.

18. The communication device according to claim 1 , wherein a bandwidth used for transmission of the BAR frame in a same period is different from a bandwidth of the data frame.

19. A communication device, comprising:
one or more circuits configured to perform communication of a data frame, wherein the one or more circuits are configured to:
receive, after the communication of the data frame, a block acknowledgment request (BAR) frame for a block acknowledgment (BA) frame including frequency allocation information specifying a transmission frequency of the BA frame, the BAR frame being multicast, the BA frame acknowledging the data frame, and
transmit the BA frame on the basis of the frequency allocation information, the BA frame being frequency division multiplexed, wherein
the BAR frame includes a receiver address field storing an identifier of a multicast group specifying destinations of the BAR frame and identification information fields specifying each of one or more destinations of the BAR frame, the identification information being association identifiers of the one or more destinations selected from the multicast group, and
the frequency allocation information includes a first piece of information for each of the one or more destinations selected from the multicast group individually and a second piece of information common to all of the one or more destinations selected from the multicast group.

20. The communication device according to claim 19 ,
wherein the one or more circuits are configured to transmit the BA frame through the transmission frequency specified by the frequency allocation information.

21. The communication device according to claim 19 , wherein the BAR frame further includes transmission time information specifying a transmission time of the BA frame, the one or more circuits are further configured to transmit the BA frame at the transmission time specified by the transmission time information, and the BA frame is time division multiplexed.

22. The communication device according to claim 19 , wherein the one or more circuits are further configured to transmit the BA frame in a case in which the communication device is specified by the identification information.

23. The communication device according to claim 19 , wherein
the first piece of information for a first destination, which is included in the destinations of the multicast group, is sent after information of an identifier of the first destination, and
the second piece of information includes information specifying a bandwidth of the transmission frequency.

24. The communication device according to claim 19 , wherein sum of the bandwidth of the transmission frequencies in the BAR frame

Assignees

• Sony Group Corp

Inventors

• Morioka Yuichi
• Sakai Eisuke

Classifications

• H04L12/1872 Primary

  avoiding ACK or NACK implosion · CPC title

• H04L1/1685 Primary

  the supervisory signal being transmitted in response to a specific request, e.g. to a polling signal · CPC title

• H04L1/1864

  ARQ related signaling (H04L1/1607 takes precedence) · CPC title

• H04L5/0055 Primary

  Physical resource allocation for ACK/NACK (for physical mapping arrangements in ARQ protocols H04L1/1861) · CPC title

• H04L5/0094

  Indication of how sub-channels of the path are allocated · CPC title