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Communication device and communication method

A technology of communication equipment and communication unit, which is applied in wireless communication, electrical components, network topology, etc., and can solve problems such as terminal unfairness

Pending Publication Date: 2021-11-26
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is, there may be an unfair situation between terminals

Method used

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  • Communication device and communication method
  • Communication device and communication method
  • Communication device and communication method

Examples

Experimental program
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Embodiment Construction

[0047] Embodiments of the technology disclosed in this specification will be described in detail below with reference to the drawings.

[0048] figure 1 The diagram illustrates a configuration example of a communication system to which the technology disclosed in this specification can be applied. figure 1 The communication system illustrated in the figure includes a base station or access point (AP) and a slave unit (STAtion: STA) connected to the AP. although figure 1 In , only one STA is illustrated for the sake of simplification of the drawing, however, it may also be assumed that two or more STAs are connected to one AP.

[0049] Three frequency bands, frequency band A, frequency band B, and frequency band C, can be used for data communication between APs and STAs. Each of the frequency bands A, B, and C includes a plurality of channels, one of which is a primary channel (PCH). Currently (at the time of this application), Band A and Band B among these three frequency ...

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PUM

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Abstract

Provided is a communication device that determines a back-off time of multiband transmission. The communication device according to the invention is provided with: a communication unit that transmits / receives radio signals in a plurality of bands; and a control unit that controls operations in the communication unit, wherein the control unit sets for each band a first random standby time for performing a transmission in the respective one of the plurality of bands, sets a second random standby time for performing simultaneous transmissions of data in two or more ones of the plurality of bands, and controls countdown of the first random standby time in each band or of the second random standby time on the basis of comparison between the first random standby time in each band and the second random standby time.

Description

technical field [0001] The technology disclosed in this specification relates to a communication device and a communication method for transmitting and receiving wireless signals. Background technique [0002] In recent years, in order to cope with the increase in required data traffic, in wireless local area networks (LANs), it is necessary to increase data capacity and improve peak throughput. Therefore, multiband transmission for communicating using a plurality of communication frequency bands (hereinafter also referred to as "bands") simultaneously has attracted attention (for example, see Patent Document 1), and is expected to be standardized as a next-generation standard of IEEE 802.11. [0003] According to the current Carrier Sense Multiple Access / Collision Avoidance (CSMA / CA), countdown random standby time (hereinafter also referred to as "backoff ( backoff) time"), and when the backoff ends in all frequency bands and the transmission right is acquired, multi-band ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/14H04W72/04H04W74/08
CPCH04W84/12H04W74/0841H04W74/0816
Inventor 相尾浩介田中悠介菅谷茂
Owner SONY CORP