WO2016141858A1 - 一种传输数据的方法和装置 - Google Patents

一种传输数据的方法和装置 Download PDF

Info

Publication number
WO2016141858A1
WO2016141858A1 PCT/CN2016/075652 CN2016075652W WO2016141858A1 WO 2016141858 A1 WO2016141858 A1 WO 2016141858A1 CN 2016075652 W CN2016075652 W CN 2016075652W WO 2016141858 A1 WO2016141858 A1 WO 2016141858A1
Authority
WO
WIPO (PCT)
Prior art keywords
transmit power
receiver
radio frame
sender
transmission
Prior art date
Application number
PCT/CN2016/075652
Other languages
English (en)
French (fr)
Inventor
江岸明
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to EP16761085.6A priority Critical patent/EP3255936B1/en
Priority to US15/556,061 priority patent/US10299220B2/en
Publication of WO2016141858A1 publication Critical patent/WO2016141858A1/zh

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/243—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account interferences
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/38—TPC being performed in particular situations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/38—TPC being performed in particular situations
    • H04W52/383—TPC being performed in particular situations power control in peer-to-peer links

Definitions

  • the present invention relates to, but is not limited to, computer network technology and wireless communication technology, and more particularly to a method and apparatus for transmitting data.
  • FIG. 1 is a schematic structural diagram of a basic service set (BSS). As shown in FIG. 1 , in a common WLAN network, an access point (AP, Access Point) station (STA, Station) and A plurality of non-AP STAs associated therewith form a BSS.
  • IEEE802.11 supports two methods of channel idle determination for physical carrier detection and virtual carrier detection.
  • the STA can perform contention transmission.
  • the physical carrier detection refers to the CSA (Clear Channel Assessment) channel detection technology, that is, the STA detects whether the channel is busy or idle by detecting the signal strength on the medium and combining the CCA threshold.
  • the virtual carrier detection refers to a third-party STA other than the two communication parties.
  • the local network allocation vector NAV, Network Allocation
  • NAV Network Allocation
  • FIG. 2 is a schematic diagram of a multiplex transmission.
  • STA B and STA A communicate, and STA C can receive the signal of STA B but cannot receive the signal of STA A, and then it is considered that STA C does not interfere with STA A receiving STA B data, so at present
  • the transmission time of the transmission is that while STA B and STA A communicate, STAC transmits data to STA D with the same frequency band resource to improve network throughput.
  • FIG. 3 is a schematic diagram of high power multiplex transmission. As shown in FIG. 3, due to the excessive transmission power of the STA C, severe interference is caused to the reception of the STA A, so that the STA A reception fails. In the related art, there is no effective solution to how to solve such interference caused by the unbalanced transmission power.
  • Embodiments of the present invention provide a method and apparatus for transmitting data, which are intended to reduce interference caused by unbalanced transmit power during multiplexing transmission.
  • the embodiment of the present invention provides a method for transmitting data, including:
  • the first sender When the first sender detects that there is currently a radio frame transmission on the working channel, it estimates the signal attenuation condition between itself and the detected first receiver of the current transmission to obtain an estimation result, and determines its own transmission power according to the estimation result;
  • the first sender transmits the radio frame to the second receiver by the determined transmit power.
  • the first sender estimates the estimated result.
  • the above method also includes:
  • the first sender determines that the current transmission is not a transmission between stations in the basic service set BSS where the first sender is located.
  • the estimating the signal attenuation condition between itself and the detected first transmission of the current transmission to obtain an estimation result includes:
  • the first sender determines that it can receive the radio frame sent by the first receiver, and can learn the transmit power and the preset threshold of the first receiver.
  • the preset threshold is the interference power that the first receiver can tolerate; the first sender obtains, from the radio frame sent by the first receiver, the first receiver can tolerate Dry Disturbing power; determining the transmission power according to the estimation result includes:
  • the transmit power of the self is less than or equal to a transmit power corresponding to a sum between a preset threshold and a path loss; wherein the path loss is a transmit power of the first receiver and receiving the first a difference between powers of radio frames transmitted by the receiver; the first sender acquires transmit power of the first receiver from a radio frame sent by the first receiver.
  • the estimating the signal attenuation condition between itself and the detected first transmission of the current transmission to obtain an estimation result includes:
  • the first sender determines that it cannot receive the radio frame sent by the first receiver, but can learn the transmit power of the first receiver.
  • the determining, according to the estimation result, the transmit power of the self includes:
  • the first sender acquires the transmit power of the first receiver, and determines that the transmit power of the first receiver is the first transmit power or the second transmit power;
  • the first transmit power is a transmit power of the first receiver, and the second transmit power is less than the first transmit power.
  • the acquiring, by the first sender, the transmit power of the first receiver includes:
  • the first sender detects the radio frame sent by the currently transmitted second sender, and acquires the transmit power of the first receiver according to the radio frame sent by the second sender.
  • the radio frame sent by the second sender carries the transmit power of the first receiver
  • the acquiring the transmit power of the first receiver according to the radio frame sent by the second sender includes:
  • the radio frame sent by the second sender carries the identification information of the first receiver.
  • the acquiring the transmit power of the first receiver according to the radio frame sent by the second sender includes:
  • the estimating the signal attenuation condition between itself and the detected first transmission of the current transmission to obtain an estimation result includes:
  • the first sender determines that it cannot receive the radio frame sent by the first receiver, and cannot learn the transmit power of the first receiver.
  • the determining, according to the estimation result, the transmit power of the self includes:
  • Determining the transmission power of the self is a preset transmission power.
  • the estimating the signal attenuation condition between itself and the detected first transmission of the current transmission to obtain an estimation result includes:
  • the first sender determines that it can receive the radio frame sent by the first receiver, but cannot learn the transmit power of the first receiver; and ends the process.
  • the time that the second sending direction is sent by the second receiving party in the first sending direction does not exceed the transmission time of the current transmission.
  • the transmit power of the first sender is transmitted to the second receiver during the current transmission period after the adjustment by the first sender.
  • the above methods also include:
  • a response frame from the second recipient is received.
  • Embodiments of the present invention also provide a computer readable storage medium storing computer executable instructions that are implemented when executed by a computer.
  • An embodiment of the present invention further provides an apparatus for transmitting data, including:
  • the determining module is configured to: when detecting that there is currently an infinite frame transmission on the working channel, estimate the signal attenuation condition between itself and the detected first receiving party of the current transmission, and obtain an estimation result, and determine its own transmitting power according to the estimation result. ;
  • a sending module configured to determine the transmit power to send the radio frame to the second receiver.
  • the determining module is configured to:
  • the determining module is configured to:
  • the transmit power and the preset threshold of the first receiver can be known;
  • the transmit power is less than or equal to the transmit power corresponding to the sum of the preset threshold and the path loss;
  • the preset threshold is the interference power that the first receiver can tolerate; the first sender obtains, from the radio frame sent by the first receiver, the first receiver can tolerate Interference power
  • the path loss is a difference between a transmit power of the first receiver and a power of a radio frame received by the first receiver; the first sender from the first receiver The transmit power of the first receiver is obtained in the transmitted radio frame.
  • the determining module is configured to:
  • the first transmit power is a transmit power of the first receiver, and the second transmit power is less than the first transmit power.
  • the determining module is configured to:
  • the radio frame sent by the second sender acquires the transmit power of the first receiver according to the radio frame sent by the second sender, and determines that the transmit power of the first transmit power is the first transmit power or the second transmit power;
  • the first transmit power is a transmit power of the first receiver, and the second transmit power is less than the first transmit power.
  • the determining module is configured to:
  • the radio frame sent by the second sender carries the transmit power of the first receiver; the first transmit power is the transmit power of the first receiver, and the second transmit power is less than the First transmit power.
  • the determining module is configured to:
  • the radio frame sent by the second sender carries the identification information of the first receiver; the first transmit power is the transmit power of the first receiver, and the second transmit power is less than the First transmit power.
  • the determining module is configured to:
  • the radio frame transmitted by the first receiver cannot be received, and the transmit power of the first receiver cannot be obtained; determining the transmission of the self.
  • the power is the preset transmit power.
  • the sending module is configured to:
  • the first sender detects the working channel.
  • the signal attenuation condition between itself and the detected first transmission of the current transmission is estimated to obtain an estimation result, and the transmission power of the antenna is determined according to the estimation result; the first sender determines the The transmit power transmits a radio frame to the second recipient.
  • the first sender determines its own transmit power according to the estimation result, and reduces the interference caused by the unbalanced transmit power during the multiplex transmission.
  • FIG. 1 is a schematic structural view of a conventional BSS
  • 2 is a schematic diagram of an existing multiplex transmission
  • FIG. 3 is a schematic diagram of an existing high power multiplex transmission
  • FIG. 4 is a flow chart of a method of transmitting data according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a multiplexing transmission according to a first example of an embodiment of the present invention
  • FIG. 6 is a schematic structural diagram of an apparatus for transmitting data according to an embodiment of the present invention.
  • an embodiment of the present invention provides a method for transmitting data, including:
  • Step 400 When the first sender detects that there is currently a radio frame transmission on the working channel, estimating the signal attenuation condition between itself and the detected first receiver of the current transmission, and obtaining an estimation result, and determining its own according to the estimation result. Transmit power.
  • the first sender estimates the signal attenuation condition between itself and the detected first receiver of the current transmission.
  • the method may further include the first sender determining that the current transmission is not a transmission between stations in the BSS where the first sender is located.
  • the process ends.
  • the method for determining whether the currently transmitted data can be identified by the first sender may be a method known in the art, and details are not described herein again.
  • the estimated result includes:
  • the first sender determines that it can receive the radio frame sent by the first receiver, and can learn the transmit power of the first receiver and the preset threshold;
  • the preset threshold is the interference power that the first receiver can tolerate; the first sender obtains, from the radio frame sent by the first receiver, the first receiver can tolerate Interference power
  • Determining its own transmit power based on the estimation results includes:
  • the path loss is the difference between the transmit power of the first receiver and the power of the radio frame sent by the first receiver; the first sender obtains the first receiver from the radio frame sent by the first receiver. Transmit power.
  • the first sender may obtain the identification information (such as address information, identification information, and the like) of the first receiver from the currently transmitted radio frame, according to the obtained identification information of the first receiver and itself.
  • the surrounding site information list determines whether it can receive the radio frame transmitted by the first recipient. For example, searching for the identification information of the first receiver in its own surrounding site information list, and if found, determining that it can receive the radio frame sent by the first receiver, and if it cannot find it, it determines that it cannot A radio frame transmitted by the first receiver is received.
  • the estimated result includes:
  • the first sender determines that it cannot receive the radio frame sent by the first receiver, but can learn the transmit power of the first receiver;
  • Determining its own transmit power based on the estimation results includes:
  • the first sender acquires the transmit power of the first receiver, and determines that the transmit power of the first receiver is the first transmit power or the second transmit power;
  • the first transmit power is the transmit power of the first receiver, and the second transmit power is less than the first transmit power.
  • the first sender acquires the transmit power of the first receiver, including:
  • the first sender detects the radio frame transmitted by the currently transmitted second sender, and acquires the transmit power of the first receiver according to the radio frame sent by the second sender.
  • the radio frame sent by the second sender carries the transmit power of the first receiver; and acquiring the transmit power of the first receiver according to the radio frame sent by the second sender includes:
  • the transmit power of the first receiver is obtained from the radio frame transmitted by the second sender.
  • the radio frame sent by the second sender carries the identification information of the first receiver
  • the acquiring the transmit power of the first receiver according to the radio frame sent by the second sender includes:
  • the estimated result includes:
  • the first sender determines that it cannot receive the radio frame sent by the first receiver, and cannot learn the transmit power of the first receiver;
  • Determining its own transmit power based on the estimation results includes:
  • the preset transmit power may be the lowest transmit power of the current communication system.
  • the estimated result includes:
  • the first sender determines that it can receive the radio frame transmitted by the first receiver, but cannot know the transmit power of the first receiver; and ends the flow of the present invention.
  • the first sender can also perform: setting the NAV according to the currently transmitted radio frame.
  • Step 401 The first sender sends a radio frame to the second receiver to determine the transmit power.
  • the time that the second receiving party sends the radio frame in the first sending direction does not exceed the transmission time of the current transmission.
  • the transmission time of the current transmission may be obtained from the detected radio frame of the second sender, and the obtained method may adopt a method known in the art, and details are not described herein again.
  • the method may further include:
  • Step 402 The first sender sends a request frame to the second receiver to determine the received transmit power, and receives a response frame from the second receiver.
  • This example describes the process by which a station cannot know the transmit power level of the first receiver currently transmitting.
  • FIG. 5 is a schematic diagram of multiplexing transmission in the present example.
  • STA A communicates with STA B. If STA C can receive the first radio frame that is transmitted by STA A, that is, the radio frame 2 that is not received by STA B, that is, the feedback radio frame, STA C is considered to be outside the signal range of STA B. After the STA A sends the data DATA1 to the STA B, that is, the second radio frame, and the STA C has the to-be-sent data DATA2 transmitted to the station STA D, the STA C starts to send the DATA2 to the STA D after parsing the transmission duration of the DATA1. Since STA C does not know the transmit power of STA B, STA C adjusts its transmit power to the default when communicating with STA D. The power is transmitted, and the end time of communication with STA D does not exceed the end time of DATA1 transmission.
  • STA C In order to confirm that STA D can correctly receive the radio frame of STA C, STA C will send a request frame to STA D with the adjusted transmit power before transmitting DATA2, and send DATA2 to STA D after receiving the response frame of STA D. .
  • STA C does not perform multiplex transmission.
  • STA A communicates with STA B. If STA C can receive the radio frame 1 sent by STA A, that is, the first radio frame, but does not receive the radio frame 2 replied by STA B, that is, the feedback radio frame, then STA A
  • the data DATA1 is transmitted to the STA B, that is, the second radio frame, and the STA C has the to-be-transmitted data DATA2 transmitted to the station STA D, and the second radio frame sent by the STA A carries the transmit power of the STA B, and the STA C parses the STA A.
  • the transmitted second radio frame learns the transmit power of the STA B, adjusts the transmit power of the self to be the transmit power of the STA B, or is lower than the transmit power of the STA B, and after parsing the transmission duration of the DATA1, starts to send the DATA2 to the STA D, and The communication end time does not exceed the DATA1 transmission end time.
  • the third example STA A communicates with STA B, and STA C can receive the radio frame 1 that is sent by STA A, that is, the first radio frame, and can also receive the radio frame 2 that is returned by STA B, that is, the feedback radio frame, and STA B sends
  • the feedback radio frame carries the transmit power of the STA B and the interference threshold that can be tolerated.
  • the STA C learns the transmit power of the STA B and the interference threshold that can be tolerated by analyzing the feedback radio frame sent by the STA B, and according to the received STA B.
  • the power of the transmitted radio frame is calculated, the path loss is calculated, and the transmission power of the channel is adjusted according to the calculated path loss to ensure that the signal power of STA B to STA B when transmitting data to STA D is lower than that of STA B.
  • the threshold does not affect the normal communication of STA B.
  • STA A transmits DATA1 to STA B
  • STA C can receive the radio frame sent by STA A, and obtain the address information of the first receiver, STA B, from the radio frame sent by STA A, and at its own surrounding site.
  • the address information of the STA B recorded in the information list is queried. If the STA B is not in the surrounding site information list of the STA C, the STA C adjusts its own transmit power to the preset transmit power when communicating with the STA D, and the communication end time with the STA D does not exceed the DATA1 transmission.
  • the STA C learns the path loss according to the recorded transmit power of the STA B and the received power, and adjusts itself according to the interference power that the recorded STA B can tolerate.
  • the transmit power is used to ensure that the signal power of STA B to STA B when transmitting data to STA D is lower than the interference threshold that STA B can tolerate, and does not affect the normal communication of STA B.
  • STA C After parsing the transmission duration of DATA1, STA C starts transmitting DATA2 to STA D with the adjusted transmission power, and the communication end time does not exceed the DATA1 transmission end time.
  • the site monitors and parses the radio frame, and records the sender information of the monitored radio frame in the surrounding site information list.
  • the surrounding site information list includes one or more of the following parameters: the sender address information of the monitored radio frame, the sender transmit power level of the monitored radio frame, the received radio frame arrival power, and the monitoring.
  • the interference threshold that the sender of the incoming radio frame can tolerate, etc., these parameters are in one-to-one correspondence with the sender address information of the monitored radio frame.
  • Embodiments of the present invention also provide a computer readable storage medium storing computer executable instructions that are implemented when executed by a computer.
  • an embodiment of the present invention further provides an apparatus for transmitting data, including:
  • the determining module is configured to: when detecting that there is currently an infinite frame transmission on the working channel, estimate the signal attenuation condition between itself and the detected first receiving party of the current transmission, and obtain an estimation result, and determine its own transmitting power according to the estimation result. ;
  • a sending module configured to determine the transmit power to send the radio frame to the second receiver.
  • the determining module can be set to:
  • the current transmission is not a transmission between the stations in the basic service set BSS where the first sender is located, between itself and the first receiver of the detected current transmission.
  • the signal attenuation condition is estimated to obtain an estimation result, and its own transmission power is determined according to the estimation result.
  • the determining module can be set to:
  • the transmit power of the first receiver is determined to be less than or Equal to the transmit power corresponding to the sum of the preset threshold and the path loss;
  • the preset threshold is the interference power that the first receiver can tolerate; the first sender obtains the interference power that the first receiver can tolerate from the radio frame sent by the first receiver.
  • the path loss is the difference between the transmit power of the first receiver and the power of the radio frame sent by the first receiver; the first sender obtains the first receiver from the radio frame sent by the first receiver. Transmit power.
  • the determining module can be set to:
  • the transmit power is the first transmit power or the second transmit power
  • first transmit power is the transmit power of the first receiver, and the second transmit power is less than the first transmit power.
  • the determining module can be set to:
  • the radio frame acquires the transmit power of the first receiver according to the radio frame sent by the second sender, and determines that the transmit power of the first transmit power is the first transmit power or the second transmit power;
  • the radio frame sent by the second sender carries the transmit power of the first receiver; the first transmit power is the transmit power of the first receiver, and the second transmit power is smaller than the first transmit power.
  • the determining module can be set to:
  • the radio frame acquires the transmit power of the first receiver from the radio frame sent by the second sender, and determines that the transmit power of the first transmit power is the first transmit power or the second transmit power;
  • the radio frame sent by the second sender carries the identification information of the first receiver.
  • the first transmit power is the transmit power of the first receiver, and the second transmit power is smaller than the first transmit power.
  • the determining module can be set to:
  • the radio frame sent by the second sender acquires the address information of the first receiver from the radio frame sent by the second sender, and searches for the corresponding address information of the first receiver in the surrounding site information list. Power, determining its own transmit power as the first transmit power or the second transmit power;
  • first transmit power is the transmit power of the first receiver, and the second transmit power is less than the first transmit power.
  • the determining module can be set to:
  • determining the transmit power of the radio is the preset transmit power.
  • the determining module can be set to:
  • the sending module can be set to:
  • the first sender when the first sender detects that there is currently a radio frame transmission on the working channel, the signal attenuation between itself and the detected first receiver of the current transmission is detected.
  • the estimation result is obtained, and the transmission power of the antenna is determined according to the estimation result; the first transmission side transmits the radio frame to the second receiver by the determined transmission power.
  • the first sender determines its own transmit power according to the estimation result, and reduces the interference caused by the unbalanced transmit power during the multiplex transmission.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

提供了一种传输数据的方法和装置，方法包括：第一发送方检测到工作信道上当前有无线帧传输时，对自身与检测到的当前传输的第一接收方之间的信号衰减状况进行估计得到估计结果，根据估计结果确定自身的发射功率；第一发送方以确定出的发射功率向第二接收方发送无线帧。通过上述方案，第一发送方根据估计结果确定自身的发射功率，降低了复用传输过程中由于发射功率不对等造成的干扰。

Description

一种传输数据的方法和装置 技术领域
本发明涉及但不限于计算机网络技术和无线通信技术，尤其一种传输数据的方法和装置。
背景技术
目前，使用无线局域网络(WLAN，Wireless Local Area Networks)进行数据通信已经十分普遍，全球对WLAN覆盖需求日益增长。电气和电子工程师协会工业规范IEEE802.11组先后定义了802.11a/b/g/n/ac等一系列标准来满足不断增长的通信需求。图1为基本服务集(BSS，Basic Service Set)的结构组成示意图，如图1所示，在常见的WLAN网络中，可以由一个接入点(AP，Access Point)站点(STA，Station)以及与之相关联的多个非AP STA组成一个BSS。目前，IEEE802.11支持物理载波检测和虚拟载波检测两种信道空闲判断方法，当采用虚拟载波检测和物理载波检测都判定信道空闲后，STA才能够进行竞争发送。其中，物理载波检测，是指空闲信道估计(CCA，Clear Channel Assessment)信道检测技术，即STA通过对媒介上的信号强度进行检测，并结合CCA门限值，判定信道是忙碌还是空闲。虚拟载波检测，是指通信双方之外的第三方STA，在接收到接收地址不是自身的无线帧时，根据无线帧中的连续时间(Duration)域的值设置本地网络分配矢量(NAV，Network Allocation Vector)的值，NAV是一个计数器，当NAV不为零时，认为信道繁忙，不进行竞争发送。只有当物理载波检测和虚拟载波检测都判定信道空闲，STA才能够进行竞争接入信道发送。
随着WLAN网络中设备的逐渐增加，为了提高信道接入机会，允许同一时间同一工作信道上进行复用传输。图2为复用传输的示意图。如图2所示，STA B和STA A进行通信，STA C能够收到STA B的信号而不能收到STA A的信号，则认为STA C不会干扰STA A接收STA B的数据，因此在当前传输的传输时间即在STA B和STA A通信的同时STAC向STA D以相同的频带资源传输数据，以提高网络吞吐。
但是在实际环境中，发送站点的发射功率各不相同，发送站点间的功率不对等会引起覆盖范围不对称，上述过程面临的问题是若STA C以较高的传输功率和STA D进行通信，则会对STA B和STA A之间的通信造成干扰。图3为大功率复用传输的示意图。如图3所示，由于STA C的发射功率过大，对STA A的接收造成了严重的干扰，使得STA A接收失败。在相关技术中，对如何解决这种发射功率不对等造成的干扰尚无有效解决方案。
发明内容
以下是对本文详细描述的主题的概述。本概述并非是为了限制权利要求的保护范围。
本发明实施例提出了一种传输数据的方法和装置，旨在降低复用传输过程中由于发射功率不对等造成的干扰。
具体地，本发明实施例提出了一种传输数据的方法，包括：
第一发送方检测到工作信道上当前有无线帧传输时，对自身与检测到的当前传输的第一接收方之间的信号衰减状况进行估计得到估计结果，根据估计结果确定自身的发射功率；
第一发送方以确定出的发射功率向第二接收方发送无线帧。
可选地，所述第一发送方检测到工作信道上当前有无线帧传输后，在所述对自身与检测到的当前传输的第一接收方之间的信号衰减状况进行估计得到估计结果之前，上述方法还包括：
所述第一发送方判断出所述当前传输不是所述第一发送方所在基本服务集BSS中的站点之间的传输。
可选地，所述对自身与检测到的当前传输的第一接收方之间的信号衰减状况进行估计得到估计结果包括：
所述第一发送方判断出自身能够接收到所述第一接收方发送的无线帧，且能够获知所述第一接收方的发射功率和预设门限；
其中，所述预设门限为所述第一接收方所能容忍的干扰功率；所述第一发送方从所述第一接收方发送的无线帧中获取所述第一接收方所能容忍的干 扰功率；所述根据估计结果确定自身的发射功率包括：
确定所述自身的发射功率为小于或等于预设门限和路损之间的和值对应的发射功率；其中，所述路损为所述第一接收方的发射功率和接收到所述第一接收方发送的无线帧的功率之间的差值；所述第一发送方从所述第一接收方发送的无线帧中获取所述第一接收方的发射功率。
可选地，所述对自身与检测到的当前传输的第一接收方之间的信号衰减状况进行估计得到估计结果包括：
所述第一发送方判断出自身不能够接收到所述第一接收方发送的无线帧，但能够获知所述第一接收方的发射功率；
所述根据估计结果确定自身的发射功率包括：
所述第一发送方获取所述第一接收方的发射功率，确定所述自身的发射功率为第一发射功率或第二发射功率；
其中；所述第一发射功率为所述第一接收方的发射功率，所述第二发射功率小于所述第一发射功率。
可选地，所述第一发送方获取第一接收方的发射功率包括：
所述第一发送方检测到所述当前传输的第二发送方发送的无线帧，根据所述第二发送方发送的无线帧获取所述第一接收方的发射功率。
可选地，所述第二发送方发送的无线帧携带有所述第一接收方的发射功率；
所述根据第二发送方发送的无线帧获取第一接收方的发射功率包括：
从所述第二发送方发送的无线帧中获取所述第一接收方的发射功率。
可选地，所述第二发送方发送的无线帧携带有所述第一接收方的识别信息；
所述根据第二发送方发送的无线帧获取第一接收方的发射功率包括：
从所述第二发送方发送的无线帧中获取所述第一接收方的识别信息，在自身的周围站点信息列表中查找获取的所述第一接收方的识别信息对应的发射功率。
可选地，所述对自身与检测到的当前传输的第一接收方之间的信号衰减状况进行估计得到估计结果包括：
所述第一发送方判断出自身不能够接收到所述第一接收方发送的无线帧，且不能够获知所述第一接收方的发射功率；
所述根据估计结果确定自身的发射功率包括：
确定所述自身的发射功率为预设发射功率。
可选地，所述对自身与检测到的当前传输的第一接收方之间的信号衰减状况进行估计得到估计结果包括：
所述第一发送方判断出自身能够接收到所述第一接收方发送的无线帧，但不能够获知所述第一接收方的发射功率；结束本流程。
可选地，所述第一发送方向所述第二接收方发送无线帧的时间不超过所述当前传输的传输时间。
可选地，根据检测到的当前传输的第一接收方的发射功率等级调整自身的发射功率后，在所述第一发送方以调整后自身的发射功率在当前传输期间内向第二接收方传输数据之前，上述方法还包括：
所述第一发送方以所述确定出的发射功率向所述第二接收方发送请求帧；
接收来自所述第二接收方的响应帧。
本发明实施例还提出了一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令被计算机执行时实现上述方法。
本发明实施例还提出了一种传输数据的装置，包括：
确定模块，设置为检测到工作信道上当前有无限帧传输时，对自身与检测到的当前传输的第一接收方之间的信号衰减状况进行估计得到估计结果，根据估计结果确定自身的发射功率；
发送模块，设置为以确定出的发射功率向第二接收方发送无线帧。
可选地，所述确定模块是设置为：
检测到工作信道上当前有无限帧传输时，判断出所述当前传输不是所述第一发送方所在基本服务集BSS中的站点之间的传输，对自身与检测到的当 前传输的第一接收方之间的信号衰减状况进行估计得到估计结果，根据估计结果确定自身的发射功率。
可选地，所述确定模块是设置为：
检测到工作信道上当前有无线帧传输时，判断出自身能够接收到所述第一接收方发送的无线帧，且能够获知所述第一接收方的发射功率和预设门限；确定所述自身的发射功率为小于或等于预设门限和路损之间的和值对应的发射功率；
其中，所述预设门限为所述第一接收方所能容忍的干扰功率；所述第一发送方从所述第一接收方发送的无线帧中获取所述第一接收方所能容忍的干扰功率；
其中，所述路损为所述第一接收方的发射功率和接收到所述第一接收方发送的无线帧的功率之间的差值；所述第一发送方从所述第一接收方发送的无线帧中获取所述第一接收方的发射功率。
可选地，所述确定模块是设置为：
检测到工作信道上当前有无线帧传输时，判断出自身不能够接收到所述第一接收方发送的无线帧，但能够获知所述第一接收方的发射功率；获取所述第一接收方的发射功率，确定所述自身的发射功率为第一发射功率或第二发射功率；
其中；所述第一发射功率为所述第一接收方的发射功率，所述第二发射功率小于所述第一发射功率。
可选地，所述确定模块是设置为：
检测到工作信道上当前有无线帧传输时，判断出自身不能够接收到所述第一接收方发送的无线帧，但能够获知所述第一接收方的发射功率；检测到所述当前传输的第二发送方发送的无线帧，根据所述第二发送方发送的无线帧获取所述第一接收方的发射功率，确定所述自身的发射功率为第一发射功率或第二发射功率；
其中，所述第一发射功率为所述第一接收方的发射功率，所述第二发射功率小于所述第一发射功率。
可选地，所述确定模块是设置为：
检测到工作信道上当前有无线帧传输时，判断出自身不能够接收到所述第一接收方发送的无线帧，但能够获知所述第一接收方的发射功率；检测到所述当前传输的第二发送方发送的无线帧，从所述第二发送方发送的无线帧中获取所述第一接收方的发射功率，确定所述自身的发射功率为第一发射功率或第二发射功率；
其中，所述第二发送方发送的无线帧携带有所述第一接收方的发射功率；所述第一发射功率为所述第一接收方的发射功率，所述第二发射功率小于所述第一发射功率。
可选地，所述确定模块是设置为：
检测到工作信道上当前有无线帧传输时，判断出自身不能够接收到所述第一接收方发送的无线帧，但能够获知所述第一接收方的发射功率；检测到所述当前传输的第二发送方发送的无线帧，从所述第二发送方发送的无线帧中获取所述第一接收方的识别信息，在自身的周围站点信息列表中查找获取的所述第一接收方的识别信息对应的发射功率，确定所述自身的发射功率为第一发射功率或第二发射功率；
其中，所述第二发送方发送的无线帧携带有所述第一接收方的识别信息；所述第一发射功率为所述第一接收方的发射功率，所述第二发射功率小于所述第一发射功率。
可选地，所述确定模块是设置为：
检测到工作信道上当前有无限帧传输时，判断出自身不能够接收到所述第一接收方发送的无线帧，且不能够获知所述第一接收方的发射功率；确定所述自身的发射功率为预设发射功率。
可选地，所述发送模块是设置为：
以所述确定出的发射功率向所述第二接收方发送请求帧；接收来自所述第二接收方的响应帧；以确定出的发射功率在所述当前传输的传输时间内向第二接收方传输数据。
与现有技术相比，本发明实施例的方案中，第一发送方检测到工作信道 上当前有无线帧传输时，对自身与检测到的当前传输的第一接收方之间的信号衰减状况进行估计得到估计结果，根据估计结果确定自身的发射功率；第一发送方以确定出的发射功率向第二接收方发送无线帧。通过本发明实施例的方案，第一发送方根据估计结果确定自身的发射功率，降低了复用传输过程中由于发射功率不对等造成的干扰。
在阅读并理解了附图和详细描述后，可以明白其他方面。
附图概述
下面对本发明实施例中的附图进行说明，实施例中的附图是用于对本发明的进一步理解，与说明书一起用于解释本发明，并不构成对本发明保护范围的限制。
图1为现有BSS的结构组成示意图；
图2为现有复用传输的示意图；
图3为现有大功率复用传输的示意图；
图4为根据本发明实施例的传输数据的方法的流程图；
图5为根据本发明实施例第一示例的复用传输的示意图；
图6为根据本发明实施例的传输数据的装置的结构组成示意图。
本发明的较佳实施方式
下面结合附图对本发明实施例作进一步的描述。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的各种方式可以相互组合。
参见图4，本发明实施例提出了一种传输数据的方法，包括：
步骤400：第一发送方检测到工作信道上当前有无线帧传输时，对自身与检测到的当前传输的第一接收方之间的信号衰减状况进行估计得到估计结果，根据估计结果确定自身的发射功率。
本步骤中，第一发送方检测到工作信道上当前有无线帧传输后，在对自身与检测到的当前传输的第一接收方之间的信号衰减状况进行估计得到估计 结果之前，所述方法还可包括：第一发送方判断出当前传输不是第一发送方所在BSS中的站点之间的传输。
本步骤中，在第一发送方检测到工作信道上当前有数据传输之后，在根据检测到的当前传输的第一接收方的发射功率等级调整自身的发射功率之前，若第一发送方判断出第一发送方和当前传输的第二发送方、或第一接收方和第二接收方、或第一发送方和第一接收方、或第二发送方和第二接收方为同一BSS中的AP时，结束本流程。
本步骤中，在第一发送方检测到工作信道上当前有数据传输之后，在根据检测到的当前传输的第一接收方的发射功率等级调整自身的发射功率之前，当第一发送方判断出当前传输的数据无法被识别时，按照现有的方法进行处理。
其中，第一发送方判断当前传输的数据是否能够被识别可以采用本领域已知的方法，这里不再赘述。
可选地，本步骤中，对自身与检测到的当前传输的第一接收方之间的信号衰减状况进行估计得到估计结果包括：
第一发送方判断出自身能够接收到第一接收方发送的无线帧，且能够获知第一接收方的发射功率和预设门限；
其中，所述预设门限为所述第一接收方所能容忍的干扰功率；所述第一发送方从所述第一接收方发送的无线帧中获取所述第一接收方所能容忍的干扰功率；
根据估计结果确定自身的发射功率包括：
确定自身的发射功率为小于或等于预设门限和路损之间的和值对应的发射功率；
其中，路损为第一接收方的发射功率和接收到第一接收方发送的无线帧的功率之间的差值；第一发送方从第一接收方发送的无线帧中获取第一接收方的发射功率。
其中，第一发送方可以从当前传输的无线帧中获取第一接收方的识别信息(如地址信息、标识信息等)，根据获得的第一接收方的识别信息和自身 的周围站点信息列表判断自身是否能够接收到第一接收方发送的无线帧。例如，在自身的周围站点信息列表中查找第一接收方的识别信息，如果查找到，则判断出自身能够接收到第一接收方发送的无线帧，如果查找不到，则判断出自身不能够接收到第一接收方发送的无线帧。
可选地，本步骤中，对自身与检测到的当前传输的第一接收方之间的信号衰减状况进行估计得到估计结果包括：
第一发送方判断出自身不能够接收到第一接收方发送的无线帧，但能够获知第一接收方的发射功率；
根据估计结果确定自身的发射功率包括：
第一发送方获取第一接收方的发射功率，确定自身的发射功率为第一发射功率或第二发射功率；
其中，第一发射功率为第一接收方的发射功率，第二发射功率小于第一发射功率。
其中，第一发送方获取第一接收方的发射功率包括：
第一发送方检测到当前传输的第二发送方发送的无线帧，根据第二发送方发送的无线帧获取第一接收方的发射功率。
可选地，第二发送方发送的无线帧携带有第一接收方的发射功率；根据第二发送方发送的无线帧获取第一接收方的发射功率包括：
从第二发送方发送的无线帧中获取第一接收方的发射功率。
可选地，第二发送方发送的无线帧携带有第一接收方的识别信息；根据第二发送方发送的无线帧获取第一接收方的发射功率包括：
从第二发送方发送的无线帧中获取第一接收方的识别信息，在自身的周围站点信息列表中查找获取的第一接收方的识别信息对应的发射功率。
可选地，本步骤中，对自身与检测到的当前传输的第一接收方之间的信号衰减状况进行估计得到估计结果包括：
第一发送方判断出自身不能够接收到第一接收方发送的无线帧，且不能够获知第一接收方的发射功率；
根据估计结果确定自身的发射功率包括：
确定自身的发射功率为预设发射功率。
其中，预设发射功率可以是当前通信系统的最低发射功率。
可选地，本步骤中，对自身与检测到的当前传输的第一接收方之间的信号衰减状况进行估计得到估计结果包括：
第一发送方判断出自身能够接收到第一接收方发送的无线帧，但不能够获知第一接收方的发射功率；并结束本发明的流程。
结束本发明的流程后还可以执行：第一发送方根据当前传输的无线帧设置NAV。
步骤401：第一发送方以确定出的发射功率向第二接收方发送无线帧。
本步骤中，第一发送方向第二接收方发送无线帧的时间不超过当前传输的传输时间。
其中，当前传输的传输时间可以从检测到的第二发送方的无线帧中获得，获得的方法可以采用本领域已知的方法，这里不再赘述。
步骤400和步骤401之间，所述方法还可包括：
步骤402：第一发送方以确定出的发射功率向第二接收方发送请求帧，接收来自第二接收方的响应帧。
下面通过具体示例详细说明本发明实施例的方法。
第一示例：本示例中描述站点无法获知当前传输的第一接收方的发射功率等级的过程。
图5为本示例中复用传输的示意图。如图5所示，STA A与STA B进行通信，如果STA C能够接收到STA A发送的无线帧1即第一无线帧，但接收不到STA B回复的无线帧2即反馈无线帧，则认为STA C处于STA B的信号范围之外。之后STA A向STA B发送数据DATA1即第二无线帧，而STA C有向站点STA D传输的待发数据DATA2，则STA C在解析出DATA1的传输时长后，开始向STA D发送DATA2。由于STA C并不知道STA B的发射功率，因此STA C与STA D通信时将自己的发射功率调整为预设发 射功率，且与STA D通信结束时刻不超过DATA1传输结束时刻。
为了确认STA D能够正确接收STA C的无线帧，在发送DATA2之前STA C会先以调整后的发射功率向STA D发送一个请求帧，收到STA D的响应帧后，才向STA D发送DATA2。
若STA C的发射功率不可调，则STA C不做复用传输。
第二示例：STA A与STA B进行通信，如果STA C能够接收到STA A发送的无线帧1即第一无线帧，但接收不到STA B回复的无线帧2即反馈无线帧，之后STA A向STA B发送数据DATA1即第二无线帧，而STA C有向站点STA D传输的待发数据DATA2，且STA A发送的第二无线帧中携带STA B的发射功率，STA C通过解析STA A发送的第二无线帧获知STA B的发射功率，调整自身发射功率为STA B的发射功率，或者低于STA B的发射功率，在解析出DATA1的传输时长后，开始向STA D发送DATA2，且通信结束时刻不超过DATA1传输结束时刻。
第三示例：STA A与STA B进行通信，STA C能够接收到STA A发送的无线帧1即第一无线帧，也能够接收到STA B回复的无线帧2即反馈无线帧，且STA B发送的反馈无线帧中携带STA B的发射功率和所能容忍的干扰门限，STA C通过解析STA B发送的反馈无线帧获知STA B的发射功率和所能容忍的干扰门限，并根据接收到STA B所发送的反馈无线帧的功率，计算出路损，根据计算得到的路损调整自身的发射功率，以确保STA C向STA D传输数据时到达STA B的信号功率低于STA B所能容忍的干扰门限，不影响STA B的正常通信。之后STA A向STA B发送数据DATA1即第二无线帧，而STA C有向站点STA D传输的待发数据DATA2，在解析出DATA1的传输时长后，开始以调整后的发射功率向STA D发送DATA2，且通信结束时刻不超过DATA1传输结束时刻。
第四示例：STA A向STA B传输DATA1，STA C能够接收到STA A发送的无线帧，从STA A发送的无线帧中获取第一接收方即STA B的地址信息，并在自身的周围站点信息列表中查询记录的STA B的地址信息。若STA B不在STA C的周围站点信息列表内，则STA C与STA D通信时将自身的发射功率调整为预设发射功率，且与STA D通信结束时刻不超过DATA1传 输结束时刻；若STA B在STA C的周围站点信息列表内，STA C根据记录的STA B的发射功率，以及接收功率获知路损，并结合记录的STA B所能容忍的干扰功率来调整自身的发射功率，以确保STA C向STA D传输数据时到达STA B的信号功率低于STA B所能容忍的干扰门限，不影响STA B的正常通信。在解析出DATA1的传输时长后，STA C开始以调整后的发射功率向STA D发送DATA2，且通信结束时刻不超过DATA1传输结束时刻。
对于上述周围站点信息列表，站点监听并解析无线帧，将监听到的无线帧的发送方信息记录在周围站点信息列表中。所述周围站点信息列表中包括以下一个或多个参数：监听到的无线帧的发送方地址信息、监听到的无线帧的发送方发射功率等级、监听到的无线帧到达自身的到达功率、监听到的无线帧的发送方所能容忍的干扰门限等，这些参数与监听到的无线帧的的发送方地址信息一一对应。
本发明实施例还提出了一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令被计算机执行时实现上述方法。
参见图6，本发明实施例还提出了一种传输数据的装置，包括：
确定模块，设置为检测到工作信道上当前有无限帧传输时，对自身与检测到的当前传输的第一接收方之间的信号衰减状况进行估计得到估计结果，根据估计结果确定自身的发射功率；
发送模块，设置为以确定出的发射功率向第二接收方发送无线帧。
上述装置中，确定模块可设置为：
检测到工作信道上当前有无限帧传输时，判断出当前传输不是第一发送方所在基本服务集BSS中的站点之间的传输，对自身与检测到的当前传输的第一接收方之间的信号衰减状况进行估计得到估计结果，根据估计结果确定自身的发射功率。
上述装置中，确定模块可设置为：
检测到工作信道上当前有无线帧传输时，判断出自身能够接收到第一接收方发送的无线帧，且能够获知第一接收方的发射功率和预设门限；确定自身的发射功率为小于或等于预设门限和路损之间的和值对应的发射功率；
其中，预设门限为第一接收方所能容忍的干扰功率；第一发送方从第一接收方发送的无线帧中获取第一接收方所能容忍的干扰功率。
其中，路损为第一接收方的发射功率和接收到第一接收方发送的无线帧的功率之间的差值；第一发送方从第一接收方发送的无线帧中获取第一接收方的发射功率。
上述装置中，确定模块可设置为：
检测到工作信道上当前有无线帧传输时，判断出自身不能够接收到第一接收方发送的无线帧，但能够获知第一接收方的发射功率；获取第一接收方的发射功率，确定自身的发射功率为第一发射功率或第二发射功率；
其中；第一发射功率为第一接收方的发射功率，第二发射功率小于第一发射功率。
上述装置中，确定模块可设置为：
检测到工作信道上当前有无线帧传输时，判断出自身不能够接收到第一接收方发送的无线帧，但能够获知第一接收方的发射功率；检测到当前传输的第二发送方发送的无线帧，根据第二发送方发送的无线帧获取第一接收方的发射功率，确定自身的发射功率为第一发射功率或第二发射功率；
其中，第二发送方发送的无线帧携带有第一接收方的发射功率；第一发射功率为第一接收方的发射功率，第二发射功率小于第一发射功率。
上述装置中，确定模块可设置为：
检测到工作信道上当前有无线帧传输时，判断出自身不能够接收到第一接收方发送的无线帧，但能够获知第一接收方的发射功率；检测到当前传输的第二发送方发送的无线帧，从第二发送方发送的无线帧中获取第一接收方的发射功率，确定自身的发射功率为第一发射功率或第二发射功率；
其中，第二发送方发送的无线帧携带有第一接收方的识别信息；第一发射功率为第一接收方的发射功率，第二发射功率小于第一发射功率。
上述装置中，确定模块可设置为：
检测到工作信道上当前有无线帧传输时，判断出自身不能够接收到第一接收方发送的无线帧，但能够获知第一接收方的发射功率；检测到当前传输 的第二发送方发送的无线帧，从第二发送方发送的无线帧中获取第一接收方的地址信息，在自身的周围站点信息列表中查找获取的第一接收方的地址信息对应的发射功率，确定自身的发射功率为第一发射功率或第二发射功率；
其中；第一发射功率为第一接收方的发射功率，第二发射功率小于第一发射功率。
上述装置中，确定模块可设置为：
检测到工作信道上当前有无限帧传输时，判断出自身不能够接收到第一接收方发送的无线帧，且不能够获知第一接收方的发射功率；确定自身的发射功率为预设发射功率。
上述装置中，确定模块可设置为：
检测到工作信道上当前有无线帧传输时，判断出自身能够接收到第一接收方发送的无线帧，但不能够获知第一接收方的发射功率；根据当前传输的无线帧设置本地网络分配矢量NAV。
上述装置中，发送模块可设置为：
以确定出的发射功率向第二接收方发送请求帧；接收来自第二接收方的响应帧；以确定出的发射功率在当前传输的传输时间内向第二接收方传输数据。
本领域普通技术人员可以理解上述方法中的全部或部分步骤可通过程序来指令相关硬件(例如处理器)完成，程序可以存储于计算机可读存储介质中，如只读存储器、磁盘或光盘等。可选地，上述实施例的全部或部分步骤也可以使用一个或多个集成电路来实现。相应地，上述实施例中的各模块/单元可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。本发明实施例不限制于任何特定形式的硬件和软件的结合。
需要说明的是，以上所述的实施例仅是为了便于本领域的技术人员理解而已，并不用于限制本申请的保护范围，在不脱离本申请的发明构思的前提下，本领域技术人员对本发明实施例所做出的任何显而易见的替换和改进等均在本申请的保护范围之内。
工业实用性
与现有技术相比，本发明实施例的方案中，第一发送方检测到工作信道上当前有无线帧传输时，对自身与检测到的当前传输的第一接收方之间的信号衰减状况进行估计得到估计结果，根据估计结果确定自身的发射功率；第一发送方以确定出的发射功率向第二接收方发送无线帧。通过本发明实施例的方案，第一发送方根据估计结果确定自身的发射功率，降低了复用传输过程中由于发射功率不对等造成的干扰。

Claims (20)

  1. 一种传输数据的方法，包括：
    第一发送方检测到工作信道上当前有无线帧传输时，对自身与检测到的当前传输的第一接收方之间的信号衰减状况进行估计得到估计结果，根据估计结果确定自身的发射功率；
    第一发送方以确定出的发射功率向第二接收方发送无线帧。
  2. 根据权利要求1所述的方法，其中，所述第一发送方检测到工作信道上当前有无线帧传输后，在所述对自身与检测到的当前传输的第一接收方之间的信号衰减状况进行估计得到估计结果之前，所述方法还包括：
    所述第一发送方判断出所述当前传输不是所述第一发送方所在基本服务集BSS中的站点之间的传输。
  3. 根据权利要求1所述的方法，其中，所述对自身与检测到的当前传输的第一接收方之间的信号衰减状况进行估计得到估计结果包括：
    所述第一发送方判断出自身能够接收到所述第一接收方发送的无线帧，且能够获知所述第一接收方的发射功率和预设门限；
    其中，所述预设门限为所述第一接收方所能容忍的干扰功率；所述第一发送方从所述第一接收方发送的无线帧中获取所述第一接收方所能容忍的干扰功率；
    所述根据估计结果确定自身的发射功率包括：
    确定所述自身的发射功率为小于或等于预设门限和路损之间的和值对应的发射功率；
    其中，所述路损为所述第一接收方的发射功率和接收到所述第一接收方发送的无线帧的功率之间的差值；所述第一发送方从所述第一接收方发送的无线帧中获取所述第一接收方的发射功率。
  4. 根据权利要求1所述的方法，其中，所述对自身与检测到的当前传输的第一接收方之间的信号衰减状况进行估计得到估计结果包括：
    所述第一发送方判断出自身不能够接收到所述第一接收方发送的无线帧， 但能够获知所述第一接收方的发射功率；
    所述根据估计结果确定自身的发射功率包括：
    所述第一发送方获取所述第一接收方的发射功率，确定所述自身的发射功率为第一发射功率或第二发射功率；
    其中；所述第一发射功率为所述第一接收方的发射功率，所述第二发射功率小于所述第一发射功率。
  5. 根据权利要求4所述的方法，其中，所述第一发送方获取第一接收方的发射功率包括：
    所述第一发送方检测到所述当前传输的第二发送方发送的无线帧，根据所述第二发送方发送的无线帧获取所述第一接收方的发射功率。
  6. 根据权利要求5所述的方法，其中，所述第二发送方发送的无线帧携带有所述第一接收方的发射功率；
    所述根据第二发送方发送的无线帧获取第一接收方的发射功率包括：
    从所述第二发送方发送的无线帧中获取所述第一接收方的发射功率。
  7. 根据权利要求5所述的方法，其中，所述第二发送方发送的无线帧携带有所述第一接收方的识别信息；
    所述根据第二发送方发送的无线帧获取第一接收方的发射功率包括：
    从所述第二发送方发送的无线帧中获取所述第一接收方的识别信息，在自身的周围站点信息列表中查找获取的所述第一接收方的识别信息对应的发射功率。
  8. 根据权利要求1所述的方法，其中，所述对自身与检测到的当前传输的第一接收方之间的信号衰减状况进行估计得到估计结果包括：
    所述第一发送方判断出自身不能够接收到所述第一接收方发送的无线帧，且不能够获知所述第一接收方的发射功率；
    所述根据估计结果确定自身的发射功率包括：
    确定所述自身的发射功率为预设发射功率。
  9. 根据权利要求1所述的方法，其中，所述对自身与检测到的当前传输 的第一接收方之间的信号衰减状况进行估计得到估计结果包括：
    所述第一发送方判断出自身能够接收到所述第一接收方发送的无线帧，但不能够获知所述第一接收方的发射功率；结束本流程。
  10. 根据权利要求1所述的方法，其中，所述第一发送方向所述第二接收方发送无线帧的时间不超过所述当前传输的传输时间。
  11. 根据权利要求1～10任意一项所述的方法，其中，所述第一发送方以确定出的发射功率向第二接收方发送无线帧之前，所述方法还包括：
    所述第一发送方以所述确定出的发射功率向所述第二接收方发送请求帧；
    接收来自所述第二接收方的响应帧。
  12. 一种传输数据的装置，包括：
    确定模块，设置为检测到工作信道上当前有无限帧传输时，对自身与检测到的当前传输的第一接收方之间的信号衰减状况进行估计得到估计结果，根据估计结果确定自身的发射功率；
    发送模块，设置为以确定出的发射功率向第二接收方发送无线帧。
  13. 根据权利要求12所述的装置，其中，所述确定模块是设置为：
    检测到工作信道上当前有无限帧传输时，判断出所述当前传输不是所述第一发送方所在基本服务集BSS中的站点之间的传输，对自身与检测到的当前传输的第一接收方之间的信号衰减状况进行估计得到估计结果，根据估计结果确定自身的发射功率。
  14. 根据权利要求12所述的装置，其中，所述确定模块是设置为：
    检测到工作信道上当前有无线帧传输时，判断出自身能够接收到所述第一接收方发送的无线帧，且能够获知所述第一接收方的发射功率和预设门限；确定所述自身的发射功率为小于或等于预设门限和路损之间的和值对应的发射功率；
    其中，所述预设门限为所述第一接收方所能容忍的干扰功率；所述第一发送方从所述第一接收方发送的无线帧中获取所述第一接收方所能容忍的干扰功率；
    其中，所述路损为所述第一接收方的发射功率和接收到所述第一接收方发送的无线帧的功率之间的差值；所述第一发送方从所述第一接收方发送的无线帧中获取所述第一接收方的发射功率。
  15. 根据权利要求12所述的装置，其中，所述确定模块是设置为：
    检测到工作信道上当前有无线帧传输时，判断出自身不能够接收到所述第一接收方发送的无线帧，但能够获知所述第一接收方的发射功率；获取所述第一接收方的发射功率，确定所述自身的发射功率为第一发射功率或第二发射功率；
    其中；所述第一发射功率为所述第一接收方的发射功率，所述第二发射功率小于所述第一发射功率。
  16. 根据权利要求15所述的装置，其中，所述确定模块是设置为：
    检测到工作信道上当前有无线帧传输时，判断出自身不能够接收到所述第一接收方发送的无线帧，但能够获知所述第一接收方的发射功率；检测到所述当前传输的第二发送方发送的无线帧，根据所述第二发送方发送的无线帧获取所述第一接收方的发射功率，确定所述自身的发射功率为第一发射功率或第二发射功率；
    其中，所述第一发射功率为所述第一接收方的发射功率，所述第二发射功率小于所述第一发射功率。
  17. 根据权利要求16所述的装置，其中，所述确定模块是设置为：
    检测到工作信道上当前有无线帧传输时，判断出自身不能够接收到所述第一接收方发送的无线帧，但能够获知所述第一接收方的发射功率；检测到所述当前传输的第二发送方发送的无线帧，从所述第二发送方发送的无线帧中获取所述第一接收方的发射功率，确定所述自身的发射功率为第一发射功率或第二发射功率；
    其中，所述第二发送方发送的无线帧携带有所述第一接收方的发射功率；所述第一发射功率为所述第一接收方的发射功率，所述第二发射功率小于所述第一发射功率。
  18. 根据权利要求16所述的装置，其中，所述确定模块是设置为：
    检测到工作信道上当前有无线帧传输时，判断出自身不能够接收到所述第一接收方发送的无线帧，但能够获知所述第一接收方的发射功率；检测到所述当前传输的第二发送方发送的无线帧，从所述第二发送方发送的无线帧中获取所述第一接收方的识别信息，在自身的周围站点信息列表中查找获取的所述第一接收方的识别信息对应的发射功率，确定所述自身的发射功率为第一发射功率或第二发射功率；
    其中，所述第二发送方发送的无线帧携带有所述第一接收方的识别信息；所述第一发射功率为所述第一接收方的发射功率，所述第二发射功率小于所述第一发射功率。
  19. 根据权利要求12所述的装置，其中，所述确定模块是设置为：
    检测到工作信道上当前有无限帧传输时，判断出自身不能够接收到所述第一接收方发送的无线帧，且不能够获知所述第一接收方的发射功率；确定所述自身的发射功率为预设发射功率。
  20. 根据权利要求12～19任意一项所述的装置，其中，所述发送模块是设置为：
    以所述确定出的发射功率向所述第二接收方发送请求帧；接收来自所述第二接收方的响应帧；以确定出的发射功率在所述当前传输的传输时间内向第二接收方传输数据。
PCT/CN2016/075652 2015-03-06 2016-03-04 一种传输数据的方法和装置 WO2016141858A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP16761085.6A EP3255936B1 (en) 2015-03-06 2016-03-04 Data transmission method and apparatus
US15/556,061 US10299220B2 (en) 2015-03-06 2016-03-04 Determining data transmit power based on estimated signal attenuation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510100010.7 2015-03-06
CN201510100010.7A CN105992327B (zh) 2015-03-06 2015-03-06 一种传输数据的方法和装置

Publications (1)

Publication Number Publication Date
WO2016141858A1 true WO2016141858A1 (zh) 2016-09-15

Family

ID=56879135

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/075652 WO2016141858A1 (zh) 2015-03-06 2016-03-04 一种传输数据的方法和装置

Country Status (4)

Country Link
US (1) US10299220B2 (zh)
EP (1) EP3255936B1 (zh)
CN (1) CN105992327B (zh)
WO (1) WO2016141858A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11849404B2 (en) * 2019-05-27 2023-12-19 Sony Group Corporation Communication device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104105185A (zh) * 2013-04-03 2014-10-15 电信科学技术研究院 设备到设备通信中的发射功率控制方法、装置及系统
CN104184702A (zh) * 2013-05-22 2014-12-03 华为终端有限公司 一种数据传输方法和设备
US20150063336A1 (en) * 2013-08-30 2015-03-05 Qualcomm Incorporated Methods and systems for improved utilization of a wireless medium

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100603561B1 (ko) * 2004-04-16 2006-07-24 삼성전자주식회사 송신 전력 제어 기반 무선랜 시스템 및 그 송신 전력 제어방법
KR20140095474A (ko) * 2011-11-07 2014-08-01 엘지전자 주식회사 무선 통신 시스템에서 주변 네트워크 정보 송수신 방법 및 장치
CN103326838B (zh) * 2012-03-20 2018-05-11 中兴通讯股份有限公司 一种释放信道接入指示信息的传输方法及站点设备
WO2014126435A1 (en) * 2013-02-15 2014-08-21 Samsung Electronics Co., Ltd. Method and apparatus for power control and multiplexing for device to device communication in wireless cellular communication system
US9125101B2 (en) * 2013-03-08 2015-09-01 Intel Corporation Distributed power control for D2D communications
CN104105181B (zh) 2013-04-10 2018-06-05 电信科学技术研究院 一种d2d传输的功率控制方法和设备

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104105185A (zh) * 2013-04-03 2014-10-15 电信科学技术研究院 设备到设备通信中的发射功率控制方法、装置及系统
CN104184702A (zh) * 2013-05-22 2014-12-03 华为终端有限公司 一种数据传输方法和设备
US20150063336A1 (en) * 2013-08-30 2015-03-05 Qualcomm Incorporated Methods and systems for improved utilization of a wireless medium

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3255936A4 *

Also Published As

Publication number Publication date
EP3255936B1 (en) 2023-05-03
US20180049136A1 (en) 2018-02-15
EP3255936A1 (en) 2017-12-13
US10299220B2 (en) 2019-05-21
CN105992327A (zh) 2016-10-05
CN105992327B (zh) 2019-05-24
EP3255936A4 (en) 2018-01-03

Similar Documents

Publication Publication Date Title
JP6427647B2 (ja) クリアチャネル査定のための方法および装置
US9807794B2 (en) Systems, methods and devices for dynamically setting response indication deferral in wireless networks
US9544904B2 (en) Systems and methods for reuse of a wireless medium for high efficiency wifi
US9838900B2 (en) Enhanced RTS/CTS enablement and detection
US10219299B2 (en) Channel aware resource allocation
CN105939543B (zh) 一种信道检测方法和装置
US9698918B2 (en) Distributed adaptive CCA mechanisms
US20160050691A1 (en) Method to Improve Channel Access Opportunity in a Wireless Communications System
US20140198741A1 (en) System and method for selecting medium access parameters for each communication session
JP2016536903A (ja) 高効率無線通信における適応ｒｔｓ／ｃｔｓ
WO2019213873A1 (zh) 无线通信方法和终端
WO2014123103A1 (ja) 距離推定方法、送信電力制御方法、ユーザ装置、及び基地局
US10165517B2 (en) Power allocation method and communications device
US20180263038A1 (en) Transmission power in adaptive cca and tpc based reuse
US20150304942A1 (en) Active scan overhead reduction
US10433268B2 (en) Calculating timing offset in wireless communications
US10425975B1 (en) Method for selecting a device to act as a relay device between a first and a second node based on received signal quality measurements
WO2016107380A1 (zh) 一种数据传输方法及站点
US20160366696A1 (en) Methods and Systems For Link Adaptation
WO2016138861A1 (zh) 一种信道检测方法和装置
WO2016141858A1 (zh) 一种传输数据的方法和装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16761085

Country of ref document: EP

Kind code of ref document: A1

REEP Request for entry into the european phase

Ref document number: 2016761085

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 15556061

Country of ref document: US

NENP Non-entry into the national phase

Ref country code: DE