Communication device and communication method

Patent metadata

Field	Value
Publication number	US-2023093300-A1
Application number	US-202117920408-A
Country	US
Kind code	A1
Filing date	Mar 8, 2021
Priority date	Apr 30, 2020
Publication date	Mar 23, 2023
Grant date	—

Abstract

A communication device for observing a channel state in a plurality of links is provided.A communication device that performs wireless communication using a plurality of links includes a first transmission unit that transmits a first signal including information regarding start of observation of a channel state in part of the plurality of links, and a second transmission unit that transmits a second signal inducing a signal including information regarding observation of a channel state in one or more links among the plurality of links. The first signal includes information regarding a link for performing the observation and information regarding a third signal for another communication device to observe a channel state.

First claim

1 . A communication device that performs wireless communication using a plurality of links, the communication device comprising:
a first transmission unit that transmits a first signal including information regarding start of observation of a channel state in part of the plurality of links; and a second transmission unit that transmits a second signal inducing a signal including information regarding observation of a channel state in one or more links among the plurality of links.

2 . The communication device according to claim 1 , wherein
the first signal includes information regarding a link for performing the observation.

3 . The communication device according to claim 1 , wherein
the first signal includes information regarding a third signal for another communication device to observe a channel state.

4 . The communication device according to claim 3 , wherein
the third signal is simultaneously transmitted on two or more links.

5 . The communication device according to claim 3 , wherein
the third signal is transmitted on two or more links at different timings.

6 . The communication device according to claim 1 , wherein
the second signal is a signal that induces a fourth signal for the communication device itself to observe a channel state.

7 . The communication device according to claim 6 , wherein
resource allocation for multi-user communication is determined on a basis of information regarding the channel state observed by the communication device itself from the fourth signal transmitted from another communication device in response to the second signal.

8 . The communication device according to claim 1 , wherein
the second signal is a signal that induces a fifth signal including information regarding a channel state observed by another communication device.

9 . The communication device according to claim 8 , wherein
resource allocation of multi-user communication is determined on a basis of information regarding a channel state collected from the fifth signal transmitted by the another communication device in response to the second signal.

10 . The communication device according to claim 7 , wherein
another communication device is requested to change a link for transmission and reception on a basis of the information regarding the channel state.

11 . The communication device according to claim 7 , wherein
another communication device is requested to change a link for performing reception processing of a signal addressed to broadcast on a basis of the information regarding the channel state.

12 . A communication method for performing wireless communication using a plurality of links, the communication method comprising:
a first transmission step of transmitting a first signal including information regarding start of observation of a channel state in part of the plurality of links; and a second transmission step of transmitting a second signal inducing a signal including information regarding observation of a channel state in one or more links among the plurality of links.

13 . A communication device that performs wireless communication using a plurality of links, the communication device comprising
transmitting a signal including information regarding observation of a channel state in one or more links among the plurality of links.

14 . The communication device according to claim 13 , further comprising:
a first reception unit that receives a first signal including information regarding start of observation of a channel state in part of the plurality of links; and a second reception unit that receives a signal for inducing a second signal including information regarding observation of a channel state in one or more links among the plurality of links, wherein a signal including information regarding observation of the channel state is transmitted in response to the first signal and the second signal.

15 . The communication device according to claim 13 , wherein
the signal including the information regarding observation of the channel state is a fourth signal for another communication device to observe the channel state.

16 . The communication device according to claim 13 , wherein
the signal including information regarding the channel state is a fifth signal including information regarding the channel state observed by the communication device itself

17 . The communication device according to claim 13 , wherein
the signal including the information regarding the channel state includes information of transmission power of the signal.

18 . The communication device according to claim 13 , wherein
a link for performing transmission and reception is changed on a basis of a request from a transmission source of the first signal or information included in the first signal.

19 . The communication device according to claim 13 , wherein
a link for performing reception processing of a signal addressed to broadcast is changed on a basis of a request from a transmission source of the first signal or information included in the first signal.

20 . A communication method for performing wireless communication using a plurality of links, the communication method comprising
transmitting a signal including information regarding observation of a channel state in one or more links among the plurality of links.

Assignees

• Sony Group Corp

Inventors

• Tanaka Yusuke
• Tanaka Ken

Classifications

• H04W28/0958

  based on metrics or performance parameters · CPC title

• H04W72/542

  using measured or perceived quality · CPC title

• H04W76/40

  for selective distribution or broadcast · CPC title

• H04W76/15 Primary

  Setup of multiple wireless link connections · CPC title

• H04W84/12

  WLAN [Wireless Local Area Networks] · CPC title