US-12628195-B2 - Wireless communication apparatus and method

US12628195B2US 12628195 B2US12628195 B2US 12628195B2US-12628195-B2

Abstract

A wireless communication apparatus: performs communication using a first link; performs communication using a second link; and performs allocation control of allocating transmission data to first data and second data, transmission control of controlling transmission of the first data using the first link and transmission of the second data using the second link, and reception control of controlling reception using the first link of a first response including reception success/failure information indicating a success/failure of reception with respect to the first data and at least a part of the second data and reception using the second link of a second response including the reception success/failure information indicating a success/failure of reception with respect to the second data and at least a part of the first data. The present technique can be applied to wireless communication systems.

Inventors

RYUICHI HIRATA
Yusuke Tanaka
Hiromasa Uchiyama
Shigeru Sugaya
Kosuke AIO

Assignees

Sony Group Corporation

Dates

Publication Date: 20260512
Application Date: 20210917
Priority Date: 20201002

Claims (13)

1 . A wireless communication apparatus, comprising: a first communicating circuit configured to perform communication using a first link; a second communicating circuit configured to perform communication using a second link; and a communication control circuit configured to perform: allocation control of allocating transmission data to first data and second data based on transmission identifiers (TIDs) of the transmission data, transmission control of: controlling transmission of the first data using the first link, and controlling transmission of the second data using the second link, and reception control of: controlling reception using the first link of a first response including reception success/failure information indicating a success/failure of reception with respect to the first data and at least a part of the second data, and controlling reception using the second link of a second response including the reception success/failure information indicating a success/failure of reception with respect to the second data and at least a part of the first data, wherein: at least one of the first communicating circuit and the second communicating circuit is configured to acquire, from another wireless communication apparatus, information with respect to a time it takes to exchange the reception success/failure information between the first link and the second link, and the communication control circuit is configured to perform, in accordance with the information with respect to the time it takes to exchange the reception success/failure information, allocation control of the transmission data, transmission control of the first data and the second data, and reception control of the first response and the second response.
2 . The wireless communication apparatus according to claim 1 , wherein the allocating of the transmission data to the first data and the second data based on the TIDs of the transmission data includes allocating, to the second data, a part of the transmission data that has been allocated to the first data among the transmission data.
3 . The wireless communication apparatus according to claim 2 , wherein the allocating of the transmission data to the first data and the second data based on the TIDs of the transmission data includes allocating the transmission data so that a portion at a tail of the first data and a portion at a head of the second data overlap with each other.
4 . The wireless communication apparatus according to claim 1 , wherein the allocating of the transmission data to the first data and the second data based on the TIDs of the transmission data includes allocating the transmission data in order from both a head of the first data and a head of the second data based on a priority of the transmission data.
5 . The wireless communication apparatus according to claim 1 , wherein the transmission control includes controlling a frame length of the second data so that the reception success/failure information with respect to at least one piece of the first data is included in the second response.
6 . The wireless communication apparatus according to claim 1 , wherein the transmission control includes standing by for a start of a transmission of the second data so that the reception success/failure information with respect to at least one piece of the first data is included in the second response.
7 . The wireless communication apparatus according to claim 1 , wherein the communication control circuit is configured to include, in a frame including the first data, transmission control information for performing control such that the reception success/failure information with respect to at least one piece of the first data is included in the second response, and the second communicating circuit is configured to transmit the frame, wherein the transmission control information includes: a transmission delay time of the second response, or a number of transmissions and a transmission interval of the second response.
8 . The wireless communication apparatus according to claim 1 , wherein the communication control circuit is configured to perform, in accordance with information acquired from an apparatus in a periphery, the allocation control of the transmission data, the transmission control of the first data and the second data, and the reception control of the first response and the second response.
9 . A wireless communication method performed by a wireless communication apparatus and comprising: performing, by a first communicating circuit of the wireless communication apparatus, communication using a first link; performing, by a second communicating circuit of the wireless communication apparatus, communication using a second link; and performing: allocation control of allocating transmission data to first data and second data based on transmission identifiers (TIDs) of the transmission data, transmission control of: controlling transmission of the first data using the first link, and controlling transmission of the second data using the second link, and reception control of: controlling reception using the first link of a first response including reception success/failure information indicating a success/failure of reception with respect to the first data and at least a part of the second data, and controlling reception using the second link of a second response including the reception success/failure information indicating a success/failure of reception with respect to the second data and at least a part of the first data, wherein the wireless control method further comprises: acquiring, by at least one of the first communicating circuit and the second communicating circuit from another wireless communication apparatus, information with respect to a time it takes to exchange the reception success/failure information between the first link and the second link, and performing in accordance with the information with respect to the time it takes to exchange the reception success/failure information, allocation control of the transmission data, transmission control of the first data and the second data, and reception control of the first response and the second response.
10 . A wireless communication apparatus, comprising: a first communicating circuit configured to perform communication using a first link; a second communicating circuit configured to perform communication using a second link; and a communication control circuit configured to perform: reception control of: controlling reception of first data from another wireless communication apparatus using the first link, and controlling reception of second data from the other wireless communication apparatus using the second link, and transmission control of: controlling transmission using the first link of a first response including reception success/failure information indicating a success/failure of reception with respect to the first data and at least a part of the second data, and controlling transmission using the second link of a second response including the reception success/failure information indicating a success/failure of reception with respect to the second data and at least a part of the first data, wherein the transmission data is allocated to the first data and the second data by the other wireless communication apparatus based on transmission identifiers (TIDs) of the transmission data, wherein: the communication control circuit is configured to perform transmission control of the first response and the second response based on transmission control information with respect to transmission of the second response included in a second frame including the second data from another wireless communication apparatus, and at least one of the first communicating circuit and the second communicating circuit is configured to transmit, to the other wireless communication apparatus, information with respect to a time it takes to exchange the reception success/failure information between the first link and the second link.
11 . The wireless communication apparatus according to claim 10 , wherein the transmission control information includes a transmission delay time of the second response, and the communication control circuit is configured to delay transmission of the second response based on the transmission control information.
12 . The wireless communication apparatus according to claim 10 , wherein the transmission control information includes a number of transmissions and a transmission interval of the second response, and the communication control circuit is configured to control the number of transmissions and the transmission interval of the second response based on the transmission control information.
13 . A wireless communication method comprising performed by a wireless communication apparatus and comprising: performing, by a first communicating circuit of the wireless communication apparatus, communication using a first link; performing, by a second communicating circuit of the wireless communication apparatus, communication using a second link; performing reception control of: controlling reception of first data from another wireless communication apparatus using the first link; and controlling reception of second data from the other wireless communication apparatus using the second link; and performing transmission control of: controlling transmission using the first link of a first response including reception success/failure information indicating a success/failure of reception with respect to the first data and at least a part of the second data; and controlling transmission using the second link of a second response including the reception success/failure information indicating a success/failure of reception with respect to the second data and at least a part of the first data, wherein the transmission data is allocated to the first data and the second data by the other wireless communication apparatus based on transmission identifiers (TIDs) of the transmission data, wherein the method further comprises: performing transmission control of the first response and the second response based on transmission control information with respect to transmission of the second response included in a second frame including the second data from another wireless communication apparatus, and transmitting, by at least one of the first communicating circuit and the second communicating circuit to the other wireless communication apparatus, information with respect to a time it takes to exchange the reception success/failure information between the first link and the second link.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS The present application is based on PCT filing PCT/JP2021/034239, filed Sep. 17, 2021, which claims priority to Japanese Application No. 2020-167502, filed Oct. 2, 2020, the entire contents of each are incorporated herein by reference. TECHNICAL FIELD The present technique relates to a wireless communication apparatus and a method, and particularly relates to a wireless communication apparatus and a method that enable communication quality to be improved. BACKGROUND ART Methods of accommodating demands for high transmission rates such as 8K transmission and XR (X Reality) include wireless communication (Multi-Link Operation: MLO) using a plurality of links. In addition, in an unlicensed band, it is necessary to perform Listen Before Talk to check whether the band is being used before transmission. Therefore, transmission timings may differ among the plurality of links. Generally, a receiving side of data notifies a transmitting side of a reception success/failure of the data by transmitting an acknowledgment signal of the data. On the other hand, the transmitting side of data may fail to receive the acknowledgment signal itself and may retransmit unnecessary data. By comparison, in communication using a plurality of links, reception success/failure information indicating a reception success/failure of data of each link is shared among the links and an acknowledgment signal including the shared reception success/failure information is transmitted. Accordingly, redundancy can be imparted to the acknowledgment signal and retransmissions of the unnecessary data described above can be reduced. However, when transmission timings differ among the plurality of links or when a delay occurs upon sharing reception success/failure information among the links, sharing of other pieces of reception success/failure information has not been completed at a time point of transmission of an acknowledgment signal and redundancy of the acknowledgment signal cannot be secured. PTL 1 describes a method of improving a probability of success of transmission by setting an appropriate transmission rate of an acknowledgment signal. However, in a band under heavy interference, the probability of success does not increase even when the transmission rate is appropriately set, and sharing of reception success/failure information in communication using a plurality of bands is not taken into consideration. NPL 1 discloses, in communication using a plurality of links, sharing reception success/failure information of data of each link among the links and notifying the sharing of reception success/failure information of other links at each link. However, the notifications are limited to information of which sharing has been completed and there is no description of accommodating cases where sharing of other pieces of reception success/failure information is incomplete. CITATION LIST Patent Literature [PTL 1]JP 2006-352711 A Non Patent Literature [NPL 1]Abhishek Patil, George Cherian, Duncan Ho, Alfred Asterjadhi, “MLO: Acknowledgement Procedure”, [online], Jan. 6, 2020, IEEE, [retrieved Jul. 31, 2020], Internet, <URL: https://mentor.ieee.org/802.11/documents> SUMMARY Technical Problem As described above, when transmission timings differ among a plurality of links or when a delay occurs upon sharing reception success/failure information among the links, it is difficult to secure redundancy of an acknowledgment signal. The present technique was devised in view of such a situation to enable communication quality to be improved. Solution to Problem A wireless communication apparatus according to a first aspect of the present technique includes: a first communicating portion configured to perform communication using a first link; a second communicating portion configured to perform communication using a second link; and a communication control portion configured to perform allocation control of allocating transmission data to first data and second data, transmission control of controlling transmission of the first data using the first link and transmission of the second data using the second link, and reception control of controlling reception using the first link of a first response including reception success/failure information indicating a success/failure of reception with respect to the first data and at least a part of the second data and reception using the second link of a second response including the reception success/failure information indicating a success/failure of reception with respect to the second data and at least a part of the first data. A wireless communication apparatus according to a second aspect of the present technique includes: a first communicating portion configured to perform communication using a first link; a second communicating portion configured to perform communication using a second link; and a communication control portion configured to perform reception control of control