Information processing apparatus, communication system, information processing method and program

Patent metadata

Field	Value
Publication number	US-11374690-B2
Application number	US-202117239720-A
Country	US
Kind code	B2
Filing date	Apr 26, 2021
Priority date	May 1, 2015
Publication date	Jun 28, 2022
Grant date	Jun 28, 2022

Abstract

An information processing apparatus including a control unit that performs control for adding, to request information for requesting a different apparatus for a confirmation response to a plurality of data transmitted to the different apparatus, notification information. The notification information is information regarding at least sequence numbers other than a start sequence number from among sequence numbers corresponding to the plurality of data. Further, the control unit transmits the request information, to which the notification information is added, to the different apparatus.

First claim

The invention claimed is:

1. An information processing apparatus, comprising:
circuitry configured to perform control for
adding a notification information field to a request information field for requesting each of a plurality of different apparatuses for a confirmation response to specific data from among a plurality of data transmitted to the plurality of different apparatuses, the request information field regarding a start sequence number for the confirmation response, the notification information field regarding sequence numbers described in a bitmap of a variable length corresponding to the specific data from among the plurality of data for the confirmation response, and
transmitting the notification information field together with the request information field, to which the notification information field is added, and an indication that the notification information is added, to each of the plurality of different apparatuses.

2. The information processing apparatus according to claim 1 , wherein the specific data is data destined for the information processing apparatus.

3. The information processing apparatus according to claim 1 , wherein the specific data is data to be passed to an upper layer.

4. The information processing apparatus according to claim 1 , wherein the specific data is data of multicast communication to be received.

5. The information processing apparatus according to claim 1 , wherein the specific data is data from which parity information is removed.

6. The information processing apparatus according to claim 1 , wherein the circuitry is configured to add and transmit the notification information field regarding successive sequence numbers or intermittent sequence numbers from among the sequence numbers corresponding to the specific data from among the plurality of data to and together with the request information field to each of the plurality of different apparatuses.

7. The information processing apparatus according to claim 1 , wherein the sequence numbers described in the bitmap include at least sequence numbers other than the start sequence number.

8. An information processing apparatus, comprising:
circuitry configured to:
receive specific data from among a plurality of data transmitted from a different apparatus to a plurality of information processing apparatuses including the information processing apparatus;
receive a request information field, a notification information field, and an indication that the notification information is added from the different apparatus,
the request information field regarding a start sequence number for a confirmation response to the specific data from among the plurality of data, the notification information field regarding sequence numbers described in a bitmap of a variable length corresponding to the specific data from among the plurality of data; and
decide, based on the notification information field, whether or not undelivered data exists from among the specific data from among the plurality of data.

9. The information processing apparatus according to claim 8 , wherein the circuitry is configured to transmit, when the undelivered data exists, a confirmation response to which information regarding a sequence number for specifying the undelivered data is added to the different apparatus and perform, when the undelivered data no longer exists as a result of re-sending of the undelivered data from the different apparatus, control for passing the specific data from among the plurality of data to the upper layer.

10. The information processing apparatus according to claim 8 , wherein the circuitry is configured to pass, when the plurality of data that have successive sequence numbers are received without an error, the plurality of data to the upper layer without receiving the request information field.

11. The information processing apparatus according to claim 8 , wherein the circuitry is configured to consider, when the specific data from among the plurality of data include data of parity information, the undelivered data that is repaired based on the parity information as data received already.

12. The information processing apparatus according to claim 8 , wherein the sequence numbers described in the bitmap include at least sequence numbers other than the start sequence number.

13. The information processing apparatus according to claim 1 , wherein the circuitry is configured to transmit an indication that the notification information field is added to each of the plurality of different apparatuses.

14. The information processing apparatus according to claim 13 , wherein the circuitry is configured to transmit a block acknowledgement request frame including the notification information field together with the request information field, to which the notification information field is added, and the indication that the notification information field is added, to each of the plurality of different apparatuses.

15. The information processing apparatus according to claim 8 , wherein the circuitry is configured to perform, when the undelivered data does not exist, control for passing the specific data from among the plurality of data to an upper layer.

16. The information processing apparatus according to claim 8 , wherein the circuitry is configured to receive an indication that the notification information field is added from the different apparatus.

17. The information processing apparatus according to claim 8 , wherein the specific data is data destined for the information processing apparatus.

18. The information processing apparatus according to claim 8 , wherein the specific data is data to be passed to an upper layer.

19. The information processing apparatus according to claim 8 , wherein the specific data is data of multicast communication to be received.

20. The information processing apparatus according to claim 8 , wherein the specific data is data from which parity information is removed.

Assignees

• Sony Group Corp

Inventors

• Sugaya Shigeru
• Sakai Eisuke

Classifications

• H04L1/16 Primary

  in which the return channel carries supervisory signals, e.g. repetition request signals · CPC title

• H04L1/1614 Primary

  using bitmaps · CPC title

• H04L2001/0093

  Point-to-multipoint · CPC title

• H04W4/06

  Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services · CPC title

• H04W28/04

  Error control · CPC title