WO2016192578A1 - 一种无线通信方法及设备 - Google Patents

一种无线通信方法及设备 Download PDF

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Publication number
WO2016192578A1
WO2016192578A1 PCT/CN2016/083495 CN2016083495W WO2016192578A1 WO 2016192578 A1 WO2016192578 A1 WO 2016192578A1 CN 2016083495 W CN2016083495 W CN 2016083495W WO 2016192578 A1 WO2016192578 A1 WO 2016192578A1
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Prior art keywords
data
receiving end
data receiving
sending end
data sending
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PCT/CN2016/083495
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English (en)
French (fr)
Inventor
董贤东
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珠海市魅族科技有限公司
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Application filed by 珠海市魅族科技有限公司 filed Critical 珠海市魅族科技有限公司
Priority to US15/574,366 priority Critical patent/US10397814B2/en
Priority to EP16802501.3A priority patent/EP3307000B1/en
Publication of WO2016192578A1 publication Critical patent/WO2016192578A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/08Testing, supervising or monitoring using real traffic
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B17/00Monitoring; Testing
    • H04B17/30Monitoring; Testing of propagation channels
    • H04B17/309Measuring or estimating channel quality parameters
    • H04B17/318Received signal strength
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/02Arrangements for optimising operational condition
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/51Allocation or scheduling criteria for wireless resources based on terminal or device properties
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA
    • H04W74/0808Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
    • H04W74/0816Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA] with collision avoidance
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W84/00Network topologies
    • H04W84/02Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10Small scale networks; Flat hierarchical networks
    • H04W84/12WLAN [Wireless Local Area Networks]

Definitions

  • the present invention relates to the field of communications, and in particular, to a wireless communication method and a wireless communication device.
  • Wireless Local Area Networks is a type of service that can be used in a home or business or in a specific service by using a portable terminal such as a smart mobile terminal, a tablet, a portable multimedia player, or the like. Wireless access to the Internet in the area.
  • WLAN Wireless Local Area Networks
  • the 802.11 protocol group has established a research group for next-generation Wi-Fi technology, High Efficiency WLAN (HEW).
  • the main research point is to improve the throughput and spectrum of existing Wi-Fi technology. Effective use of efficiency, improve the user experience (Quality Of Experience, QoE).
  • QoE Quality Of Experience
  • a lot of research has been done on the Clear Channel Assessment (CCA), for example, by changing the threshold of the CCA to improve the space utilization rate.
  • CCA Clear Channel Assessment
  • FIG. 1 is a schematic diagram showing the principle of a CCA mechanism in the prior art.
  • the site device 1 performs data transmission to the site device 3, the site device 2 and the site device 1 form an Overlapping Basis Service Set (OBSS).
  • OBSS Overlapping Basis Service Set
  • the site device 2 must set its CCA to be busy, and cannot simultaneously transmit data to the site device 4, so the spectrum utilization is not high.
  • the technical problem to be solved by the embodiments of the present invention is to provide a wireless communication method and a wireless communication device, which can implement the data transmission of the device in the OBSS at the same time, thereby greatly improving the system frequency. Spectrum utilization.
  • an embodiment of the present invention provides a wireless communication method, including:
  • the first data transmitting end When the first data transmitting end senses that the second data sending end sends data to the second data receiving end, the first data sending end determines whether the second data receiving end is perceived to exist; wherein the first data sending And the second data sending end is in an overlapping basic service set OBSS, and the first data sending end needs to send data to the first data receiving end;
  • the first data sending end analyzes whether the second data sending end senses the existence of the first data receiving end
  • the first data transmitting end sends data to the first data receiving end.
  • the method further includes: collecting, by the first data sending end, the perceived Site device information and generate a first set of information;
  • the first data sending end determines whether the presence of the second data receiving end is perceived, including:
  • the method further includes: the first Receiving, by the data sending end, the second information set sent by the second data sending end; the second information set is a collection of the information of the site device that is sent by the second data sending end;
  • the first data sending end analyzes whether the second data sending end perceives the existence of the first data receiving end, and includes:
  • the method further includes:
  • the first data sending end collects the information of the perceived site device, and after generating the first information set, sends the first information set to other site devices in the OBSS.
  • the first data sending end when the first data sending end determines that the second data receiving end is perceived, the first data sending end analyzes whether the second data sending end senses the first data receiving end.
  • the presence of the terminal further includes: when the second data transmitting end does not detect the presence of the first data receiving end, the method further includes:
  • the first data sending end detects whether the collected received signal strength indication corresponding to the first data receiving end is greater than the received signal strength indication corresponding to the second data receiving end;
  • the transmission power of the first data transmitting end is reduced by the transmission power control, and after the first data transmitting end does not perceive the existence of the second data receiving end, the first data is sent to the first data The receiving end sends data.
  • the embodiment of the present invention provides a wireless communication device, where the wireless communication device is used as the first data sending end, and includes:
  • the sensing determining module is configured to: when it is perceived that the second data sending end sends data to the second data receiving end, determine whether the second data receiving end is perceived; wherein the first data sending end and the second data sending end The data sending end is in the overlapping basic service set OBSS, and the first data sending end needs to send data to the first data receiving end;
  • a perceptual analysis module configured to: when the determination result of the perceptual determination module is negative, analyze whether the second data transmitting end perceives the existence of the first data receiving end;
  • a data sending module configured to: when the analysis result of the perceptual analysis module is negative, the first data sending end sends data to the first data receiving end.
  • the method further includes:
  • the information collection generating module is configured to collect the information of the perceived site device and generate the first information set before the sensing determining module determines whether the second data receiving end is perceived to exist;
  • the sensing judgment module includes:
  • a first viewing unit configured to check whether the information of the second data receiving end is included in the first information set; when the viewing result is yes, determining that the second data receiving end is perceived; when the viewing result is Otherwise, it is judged that the presence of the second data receiving end is not perceived.
  • the method further includes:
  • An information collection receiving module configured to analyze, by the perceptual analysis module, the second data sending end Receiving the second information set sent by the second data sending end before sensing the existence of the first data receiving end; the second information set collecting the information of the perceived site device by the second data sending end set;
  • the perceptual analysis module includes:
  • a second viewing unit configured to check whether the information of the first data receiving end is included in the second information set; when the viewing result is yes, analyzing that the second data sending end senses the first data receiving end The presence of the end; when the result of the check is no, it is analyzed that the second data transmitting end does not perceive the existence of the first data receiving end.
  • the method further includes:
  • the information collection sending module is configured to: after the information collection and generation module collects the information of the perceived site device, and generate the first information set, send the first information set to other site devices in the OBSS.
  • a detecting module configured to: when the sensing determining module determines that the second data receiving end is perceived, and the sensing analysis module analyzes that the second data sending end does not perceive the existence of the first data receiving end And detecting, by the collected received signal strength indication corresponding to the first data receiving end, whether the received signal strength indication corresponding to the second data receiving end is greater than
  • a control sending module configured to: when the detection result of the detecting module is YES, reduce a transmit power of the first data sending end by using a transmission power control, and do not perceive the second data at the first data sending end After the presence of the receiving end, the data is sent to the first data receiving end.
  • the first data sending end determines whether the second data receiving end is perceived to exist, and when determining If the result is no, the first data sending end analyzes whether the second data transmitting end senses the existence of the first data receiving end; when the analysis result is no, the first data sending end sends the first data sending end to the first data receiving end.
  • the data solves the problem that the devices in the OBSS cannot transmit data at the same time in the prior art. By improving the CCA mechanism in the prior art, the devices in the OBSS simultaneously transmit data, which greatly improves the system spectrum utilization.
  • FIG. 1 is a schematic diagram of the principle of a CCA mechanism in the prior art
  • FIG. 2 is a schematic flow chart of a wireless communication method provided by the present invention.
  • FIG. 3 is a schematic flow chart of another embodiment of a wireless communication method provided by the present invention.
  • FIG. 4 is a schematic flow chart of another embodiment of a wireless communication method provided by the present invention.
  • FIG. 5 is a schematic structural diagram of a wireless communication device provided by the present invention.
  • FIG. 6 is a schematic structural diagram of another embodiment of a wireless communication device provided by the present invention.
  • FIG. 7 is a schematic structural diagram of another embodiment of a wireless communication device provided by the present invention.
  • FIG. 8 is a schematic structural diagram of another embodiment of a wireless communication device according to the present invention.
  • FIG. 9 is a schematic structural diagram of another embodiment of a wireless communication device provided by the present invention.
  • FIG. 10 is a schematic structural diagram of a wireless communication system provided by the present invention.
  • a wireless communication method provided by the present invention includes:
  • Step S200 When the first data transmitting end senses that the second data sending end sends data to the second data receiving end, the first data sending end determines whether the presence of the second data receiving end is perceived;
  • the first data sending end and the second data sending end are in the OBSS, and the first The data transmitting end needs to send data to the first data receiving end; when the first data sending end determines that the second data receiving end is perceived, for example, the first data sending end and the second data receiving end are in the same BSS. , then trigger to perform step S206, otherwise trigger to perform step S202;
  • Step S202 The first data sending end analyzes whether the second data sending end perceives the existence of the first data receiving end
  • the first data sending end further analyzes whether the second data sending end senses the existence of the first data receiving end, for example, whether the second data sending end and the first data receiving end are in the same BSS, if It is analyzed that the second data transmitting end can sense the existence of the first data receiving end, then the step S206 is triggered, otherwise the step S204 is triggered.
  • Step S204 The first data sending end sends data to the first data receiving end.
  • the first data sending end knows that if the first data receiving end and the second data receiving end receive data at the same time, the sending of the data by the second data sending end does not cause interference to the receiving of the first data receiving end, and the first data The sending of data by the transmitting end also does not cause interference to the receiving of the second data receiving end, and the first data transmitting end can send data to the first data receiving end.
  • Step S206 End the process.
  • step S206 is not limited to the ending process, and the next step of determining or analyzing may be performed, or the first data transmitting end sets the CCA to be busy, and does not perform data transmission, etc., which is not limited herein.
  • the first data sending end determines whether the second data receiving end is perceived to exist, and when determining If the result is no, the first data sending end analyzes whether the second data transmitting end senses the existence of the first data receiving end; when the analysis result is no, the first data sending end sends the first data sending end to the first data receiving end.
  • the data solves the problem that the devices in the OBSS cannot transmit data at the same time in the prior art. By improving the CCA mechanism in the prior art, the devices in the OBSS simultaneously transmit data, which greatly improves the system spectrum utilization.
  • FIG. 3 a schematic flowchart of another embodiment of the wireless communication method provided by the present invention, as shown in FIG. 3, includes:
  • Step S300 The first data sending end collects the information of the perceived site device, and generates a first information set.
  • the first data sending end may collect information about the surrounding site device, for example, the perceived media access control (MAC) address and the received signal strength indicator of the site device. Received Signal Strength Indication (RSSI), etc., and generate a first set of information, that is, information that can include multiple site devices.
  • MAC perceived media access control
  • RSSI Received Signal Strength Indication
  • Step S302 The first data sending end receives the second information set sent by the second data sending end.
  • the second information set is a second information set collected by the second data sending end and generated by the second data sending end, and the devices in the OBSS may mutually send each other by using a shared manner.
  • the information collection that is, the first data sending end collects the information of the perceived site device, and after generating the first information set, may send the first information set to other site devices in the OBSS; After the data sender collects the information of the perceived site device and generates the second information set, the second information set may be sent to other site devices in the OBSS. Then, the first data sending end receives the second information set sent by the second data sending end.
  • Step S304 When the first data transmitting end senses that the second data sending end sends data to the second data receiving end, it is checked whether the information of the second data receiving end is included in the first information set.
  • the first data sending end may determine whether the second data receiving end is perceived by checking whether the information in the first information set includes the information of the second data receiving end, and when the viewing result is yes, determining that the The presence of the second data receiving end triggers the execution of step S310; when the viewing result is no, it is determined that the second data receiving end is not perceived, and the step S306 is triggered.
  • Step S306 Check whether the information of the first data receiving end is included in the second information set.
  • the first data sending end may be configured to check whether the second data sending end senses the existence of the first data receiving end by checking whether the second information set includes the information of the first data receiving end, and when the viewing result is yes, And analyzing, by the second data sending end, the presence of the first data receiving end, triggering to perform step S310; and when the viewing result is no, analyzing that the second data sending end does not perceive the first data receiving end
  • the presence of the terminal triggers execution of step S306.
  • Step S308 The first data sending end sends data to the first data receiving end;
  • the first data sending end knows that if the first data receiving end and the second data receiving end receive data at the same time, the sending of the data by the second data sending end does not cause interference to the receiving of the first data receiving end, and the first data The sending of data by the transmitting end also does not cause interference to the receiving of the second data receiving end, and the first data transmitting end can send data to the first data receiving end.
  • Step S310 End the process.
  • step S310 is not limited to the end process, and the next step of determining or analyzing may be performed, or the first data transmitting end sets its CCA to be busy, does not perform data transmission, and the like, and is not limited herein.
  • FIG. 4 a schematic flowchart of another embodiment of a wireless communication method provided by the present invention, the method includes:
  • Step S400 When the first data transmitting end senses that the second data sending end sends data to the second data receiving end, the first data sending end determines whether the presence of the second data receiving end is perceived;
  • the first data sending end and the second data sending end are in the OBSS, and the first data sending end needs to send data to the first data receiving end; when the first data sending end determines that the first data sending end can be perceived
  • the second data receiving end for example, the first data transmitting end and the second data receiving end are in the same BSS, then the step S402 is triggered, otherwise the step S404 is triggered;
  • Step S402 The first data sending end analyzes whether the second data sending end perceives the existence of the first data receiving end
  • the first data sending end further analyzes whether the second data sending end senses the existence of the first data receiving end, for example, whether the second data sending end and the first data receiving end are in the same BSS, if It is analyzed that the second data transmitting end can sense the existence of the first data receiving end, then the step S412 is triggered, otherwise the step S406 is triggered.
  • Step S404 The first data sending end analyzes whether the second data sending end perceives the existence of the first data receiving end
  • the first data sending end further analyzes whether the second data sending end senses the existence of the first data receiving end, for example, whether the second data sending end and the first data receiving end are in the same BSS, if It is analyzed that the second data transmitting end can sense the existence of the first data receiving end, then the step S412 is triggered, otherwise the step S410 is triggered.
  • Step S406 The first data sending end detects whether the collected received signal strength indication corresponding to the first data receiving end is greater than the received signal strength indication corresponding to the second data receiving end;
  • the first data sending end may collect the RSSI information of the peripheral station device in advance, and determine whether the RSSI corresponding to the first data receiving end is greater than the RSSI corresponding to the second data receiving end, and if yes, execute step S408. Otherwise, step S412 is performed.
  • Step S408 The transmission power of the first data transmitting end is reduced by the transmission power control, and the data is sent to the first data receiving end after the first data transmitting end does not perceive the existence of the second data receiving end. .
  • the transmit power of the first data transmitting end is reduced by using a Transmission Power Control (TPC), so that the first data transmitting end does not perceive the existence of the second data receiving end, but the first data can be perceived.
  • TPC Transmission Power Control
  • the presence of the receiving end can then send data to the first data receiving end.
  • Step S410 The first data sending end sends data to the first data receiving end.
  • the first data sending end knows that if the first data receiving end and the second data receiving end receive data at the same time, the sending of the data by the second data sending end does not cause interference to the receiving of the first data receiving end, and the first data The sending of data by the transmitting end also does not cause interference to the receiving of the second data receiving end, and the first data transmitting end can send data to the first data receiving end.
  • Step S412 End the flow.
  • step S412 is not limited to the end process, and the next step of determining or analyzing may be performed, or the first data transmitting end sets the CCA to be busy, and does not perform data transmission, etc., which is not limited herein.
  • the first data sending end determines whether the second data receiving end is perceived to exist, and when determining If the result is no, the first data sending end analyzes whether the second data transmitting end senses the existence of the first data receiving end; when the analysis result is no, the first data sending end sends the first data sending end to the first data receiving end.
  • the data solves the problem that the devices in the OBSS cannot transmit data at the same time in the prior art. By improving the CCA mechanism in the prior art, the devices in the OBSS simultaneously transmit data, which greatly improves the system spectrum utilization.
  • FIG. 5 is a schematic structural diagram of a wireless communication device according to the present invention.
  • the wireless communication device 50 is a first data transmitting end corresponding to the method embodiment, and the wireless communication device 50 may include a sensing determining module 500, a sensing analyzing module 502, and Data sending module 504, wherein
  • the sensing determining module 500 is configured to: when it is perceived that the second data sending end sends data to the second data receiving end, determine whether the second data receiving end is perceived; wherein the first data sending end and the second data sending end The data sending end is in the overlapping basic service set OBSS, and the first data sending end needs to send data to the first data receiving end;
  • the perceptual analysis module 502 is configured to analyze the result when the determination result of the perceptual determination module 500 is negative. Whether the second data transmitting end senses the existence of the first data receiving end;
  • the data sending module 504 is configured to: when the analysis result of the sensing analysis module 502 is negative, the first data sending end sends data to the first data receiving end.
  • the wireless communication device 50 is a first data transmitting end corresponding to the method item embodiment, and the wireless communication device 50 may include a sensing judgment.
  • the module 500, the perceptual analysis module 502, and the data sending module 504 may further include an information collection generating module 506, and the sensing judging module 500 may include a first viewing unit 5000, wherein
  • the information collection generating module 506 is configured to collect the information of the perceived site device and generate the first information set before the sensing determining module 500 determines whether the second data receiving end is perceived.
  • the first viewing unit 5000 is configured to check whether the information of the second data receiving end is included in the first information set; when the viewing result is yes, determining that the second data receiving end is perceived; when the viewing result is Otherwise, it is judged that the presence of the second data receiving end is not perceived.
  • the wireless communication device 50 is a first data transmitting end corresponding to the method embodiment, and the wireless communication device 50 may include a sensing judgment.
  • the module 500, the perceptual analysis module 502, the data sending module 504, and the information collection generating module 506 may further include an information collection receiving module 508, and the sensing determining module 500 may include a first viewing unit 5000 and a second viewing unit 5002, wherein
  • the information collection receiving module 508 is configured to receive the second information set sent by the second data sending end before the perceptual analysis module 502 analyzes whether the second data sending end senses the existence of the first data receiving end;
  • the second information set is configured to collect, by the second data sending end, the information of the sensed site device, and generate the second information set;
  • the second viewing unit 5002 is configured to check whether the information of the first data receiving end is included in the second information set; when the viewing result is yes, analyzing that the second data sending end senses the first data receiving end The presence of the end; when the result of the check is no, it is analyzed that the second data transmitting end does not perceive the existence of the first data receiving end.
  • the wireless communication device 50 is the first data transmitting end corresponding to the method embodiment, and the wireless communication device 50 may include the sensing.
  • the determination module 500, the perceptual analysis module 502, the data sending module 504, the information collection generating module 506, and the information collection receiving module 508 further include an information collection module. 5010.
  • the information collection generation module 506 is configured to collect the information of the perceived site device, and after generating the first information set, send the first information set to other site devices in the OBSS.
  • the wireless communication device 50 may include a perception determination module 500, a perceptual analysis module 502, a data transmission module 504, and information collection generation.
  • the module 506, the information collection receiving module 508, and the information collection sending module 5010 may further include: a detecting module 5012 and a control sending module 5014, wherein
  • the detecting module 5012 is configured to: when the sensing determining module 500 determines that the second data receiving end is perceived, and the sensing analysis module 502 analyzes that the second data sending end does not sense the presence of the first data receiving end, Detecting whether the received received signal strength indication corresponding to the first data receiving end is greater than the received signal strength indication corresponding to the second data receiving end;
  • the control sending module 5014 is configured to: when the detection result of the detecting module 5012 is YES, reduce the transmitting power of the first data transmitting end by using the transmission power control, and do not perceive the second data receiving at the first data sending end After the presence of the terminal, the data is sent to the first data receiving end.
  • the wireless receiving device 50 of the embodiment of the present invention may be, for example, a tablet computer, a personal digital assistant, a smart mobile terminal, or other network device.
  • the present invention also provides related systems for cooperating with the implementation of the above described solutions.
  • the following is a detailed description of the structure of the wireless communication system provided by the present invention shown in FIG. 10:
  • the wireless communication system 10 includes a first data transmitting device 100, a second data transmitting device 102, a first data receiving device 104, and a second data receiving device 106, wherein
  • the first data transmitting device 100 may be the wireless communication device 50 in the above embodiment, and details are not described herein again.
  • the second data transmitting device 102, the first data receiving device 104, and the second data receiving device 106 may respectively correspond to the second data receiving end, the first data receiving end, and the second data receiving end in the foregoing embodiment.
  • the first data sending end determines whether the second data receiving end is perceived. If the result of the determination is no, the first data sending end analyzes whether the second data transmitting end senses the existence of the first data receiving end; when the analysis result is no, the first data sending end points to the first A data receiving end sends data; solves the problem that the equipment in the OBSS cannot transmit data at the same time in the prior art, and implements the CCA mechanism in the prior art to realize the simultaneous data transmission of the equipment in the OBSS, thereby greatly improving the system. Spectrum utilization.
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

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Abstract

本发明实施例公开了一种无线通信方法,包括:当第一数据发送端感知到第二数据发送端向第二数据接收端发送数据时;第一数据发送端判断是否感知到第二数据接收端的存在;其中第一数据发送端与第二数据发送端处于重叠基本服务集OBSS中,且第一数据发送端需要向第一数据接收端发送数据;当判断结果为否时,第一数据发送端分析第二数据发送端是否感知到第一数据接收端的存在;当分析结果为否时,第一数据发送端向第一数据接收端发送数据。本发明还公开了相关设备,采用本发明的技术方案,解决了现有技术中处于OBSS的设备不能同时发送数据的问题,通过改进现有技术中CCA机制实现处于OBSS中的设备同时进行数据的发送,大大提高了系统频谱利用率。

Description

一种无线通信方法及设备
本申请要求于2015年05月29日提交中国专利局、申请号为201510289954.3、发明名称为“一种无线通信方法及设备”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信领域,尤其涉及一种无线通信方法和一种无线通信设备。
背景技术
随着信息通信技术的进步,各种无线通信技术近来已得到发展。在这些无线通信技术当中,无线局域网(Wireless Local Area Networks,WLAN)是一种可以通过使用便携式终端(诸如智能移动终端、平板电脑、便携式多媒体播放器等)在家庭或企业中或者在提供特定服务的区域中以无线方式上网的技术。
当前,802.11协议组成立了下一代Wi-Fi技术的研究组——高效无线局域网(High Efficiency WLAN,HEW),主要的研究点是提高比现有Wi-Fi技术更高的吞吐量,提高频谱的有效利用效率、提高用户体验(Quality Of Experience,QoE)。其中对空闲信道评估(Clear Channel Assessment,CCA)进行了大量的研究,例如通过改变CCA的阈值来提高空间的重利用率等。
如图1示出了现有技术中CCA机制的原理示意图,当站点设备1向站点设备3进行数据传输时,站点设备2与站点设备1形成了重叠基本服务集(Overlapping Basis Service Set,OBSS),根据现有Wi-Fi技术的CCA机制,站点设备2必需将其CCA设置为繁忙,而不能同时向站点设备4发送数据,因此频谱利用率不高。
发明内容
本发明实施例所要解决的技术问题在于,提供一种无线通信方法及无线通信设备,能实现处于OBSS中的设备同时进行数据的发送,大大提高了系统频 谱利用率。
第一方面,本发明实施例提供了一种无线通信方法,包括:
当第一数据发送端感知到第二数据发送端向第二数据接收端发送数据时;所述第一数据发送端判断是否感知到所述第二数据接收端的存在;其中所述第一数据发送端与所述第二数据发送端处于重叠基本服务集OBSS中,且所述第一数据发送端需要向第一数据接收端发送数据;
当判断结果为否时,所述第一数据发送端分析所述第二数据发送端是否感知到所述第一数据接收端的存在;
当分析结果为否时,所述第一数据发送端向所述第一数据接收端发送数据。
结合第一方面,在第一种可能的实现方式中,所述第一数据发送端判断是否感知到所述第二数据接收端的存在之前,还包括:所述第一数据发送端收集感知到的站点设备的信息,并生成第一信息集合;
所述第一数据发送端判断是否感知到所述第二数据接收端的存在,包括:
查看所述第一信息集合中是否包含所述第二数据接收端的信息;当查看结果为是时,判断出感知到所述第二数据接收端的存在;当查看结果为否时,判断出没有感知到所述第二数据接收端的存在。
结合第一方面,在第二种可能的实现方式中,所述第一数据发送端分析所述第二数据发送端是否感知到所述第一数据接收端的存在之前,还包括:所述第一数据发送端接收所述第二数据发送端发送的第二信息集合;所述第二信息集合为所述第二数据发送端收集感知到的站点设备的信息集合;
所述第一数据发送端分析所述第二数据发送端是否感知到所述第一数据接收端的存在,包括:
查看所述第二信息集合中是否包含所述第一数据接收端的信息;当查看结果为是时,分析出所述第二数据发送端感知到所述第一数据接收端的存在;当查看结果为否时,分析出所述第二数据发送端没有感知到所述第一数据接收端的存在。
结合第一方面的第一种可能的实现方式,在第三种可能的实现方式中,还包括:
所述第一数据发送端收集感知到的站点设备的信息,并生成第一信息集合后,将所述第一信息集合发送给处于所述OBSS中的其它站点设备。
结合第一方面,或者第一方面的第一种可能的实现方式,或者第一方面的第二种可能的实现方式,或者第一方面的第三种可能的实现方式,在第四种可能的实现方式中,当所述第一数据发送端判断出感知到所述第二数据接收端的存在时,所述第一数据发送端分析所述第二数据发送端是否感知到所述第一数据接收端的存在,在分析出所述第二数据发送端没有感知到所述第一数据接收端的存在时,还包括:
所述第一数据发送端检测收集到的所述第一数据接收端对应的接收信号强度指示是否大于所述第二数据接收端对应的接收信号强度指示;
当检测结果为是时,通过传输功率控制降低所述第一数据发送端的发射功率,并在所述第一数据发送端没有感知到所述第二数据接收端的存在后,向所述第一数据接收端发送数据。
第二方面,本发明实施例提供了一种无线通信设备,所述无线通信设备作为第一数据发送端,包括:
感知判断模块,用于当感知到第二数据发送端向第二数据接收端发送数据时,判断是否感知到所述第二数据接收端的存在;其中所述第一数据发送端与所述第二数据发送端处于重叠基本服务集OBSS中,且所述第一数据发送端需要向第一数据接收端发送数据;
感知分析模块,用于当所述感知判断模块的判断结果为否时,分析所述第二数据发送端是否感知到所述第一数据接收端的存在;
数据发送模块,用于当所述感知分析模块的分析结果为否时,所述第一数据发送端向所述第一数据接收端发送数据。
结合第二方面,在第一种可能的实现方式中,还包括:
信息收集生成模块,用于在所述感知判断模块判断是否感知到所述第二数据接收端的存在之前,收集感知到的站点设备的信息,并生成第一信息集合;
所述感知判断模块包括:
第一查看单元,用于查看所述第一信息集合中是否包含所述第二数据接收端的信息;当查看结果为是时,判断出感知到所述第二数据接收端的存在;当查看结果为否时,判断出没有感知到所述第二数据接收端的存在。
结合第二方面,在第二种可能的实现方式中,还包括:
信息集合接收模块,用于在所述感知分析模块分析所述第二数据发送端是 否感知到所述第一数据接收端的存在之前,接收所述第二数据发送端发送的第二信息集合;所述第二信息集合为所述第二数据发送端收集感知到的站点设备的信息集合;
所述感知分析模块包括:
第二查看单元,用于查看所述第二信息集合中是否包含所述第一数据接收端的信息;当查看结果为是时,分析出所述第二数据发送端感知到所述第一数据接收端的存在;当查看结果为否时,分析出所述第二数据发送端没有感知到所述第一数据接收端的存在。
结合第二方面的第一种可能的实现方式,在第三种可能的实现方式中,还包括:
信息集合发送模块,用于在所述信息收集生成模块收集感知到的站点设备的信息,并生成第一信息集合后,将所述第一信息集合发送给处于所述OBSS中的其它站点设备。
结合第二方面,或者第二方面的第一种可能的实现方式,或者第二方面的第二种可能的实现方式,或者第二方面的第三种可能的实现方式,在第四种可能的实现方式中,还包括:
检测模块,用于当所述感知判断模块判断出感知到所述第二数据接收端的存在,并所述感知分析模块分析出所述第二数据发送端没有感知到所述第一数据接收端的存在时,检测收集到的所述第一数据接收端对应的接收信号强度指示是否大于所述第二数据接收端对应的接收信号强度指示;
控制发送模块,用于当所述检测模块的检测结果为是时,通过传输功率控制降低所述第一数据发送端的发射功率,并在所述第一数据发送端没有感知到所述第二数据接收端的存在后,向所述第一数据接收端发送数据。
通过实施本发明实施例,当第一数据发送端感知到第二数据发送端向第二数据接收端发送数据时;该第一数据发送端判断是否感知到该第二数据接收端的存在,当判断结果为否时,该第一数据发送端分析该第二数据发送端是否感知到该第一数据接收端的存在;当分析结果为否时,该第一数据发送端向该第一数据接收端发送数据;解决了现有技术中处于OBSS的设备不能同时发送数据的问题,通过改进现有技术中的CCA机制实现了处于OBSS中的设备同时进行数据的发送,大大提高了系统频谱利用率。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1是现有技术中CCA机制的原理示意图;
图2是本发明提供的无线通信方法的流程示意图;
图3是本发明提供的无线通信方法的另一实施例的流程示意图;
图4是本发明提供的无线通信方法的另一实施例的流程示意图;
图5是本发明提供的无线通信设备的结构示意图;
图6是本发明提供的无线通信设备的另一实施例的结构示意图;
图7是本发明提供的无线通信设备的另一实施例的结构示意图;
图8是本发明提供的无线通信设备的另一实施例的结构示意图;
图9是本发明提供的无线通信设备的另一实施例的结构示意图;
图10是本发明提供的无线通信系统的结构示意图。
具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
需要说明的是,在本发明实施例中使用的术语是仅仅出于描述特定实施例的目的,而非旨在限制本发明。在本发明实施例和所附权利要求书中所使用的单数形式的“一种”、“所述”和“该”也旨在包括多数形式,除非上下文清楚地表示其他含义。还应当理解,本文中使用的术语“和/或”是指并包含一个或多个相关联的列出项目的任何或所有可能组合。
参见图2,本发明提供的无线通信方法,包括:
步骤S200:当第一数据发送端感知到第二数据发送端向第二数据接收端发送数据时;所述第一数据发送端判断是否感知到所述第二数据接收端的存在;
具体地,该第一数据发送端与该第二数据发送端处于OBSS中,且该第一 数据发送端需要向第一数据接收端发送数据;当该第一数据发送端判断出能感知到第二数据接收端的存在,例如该第一数据发送端与该第二数据接收端处于同一个BSS,那么触发执行步骤S206,否则触发执行步骤S202;
步骤S202:所述第一数据发送端分析所述第二数据发送端是否感知到所述第一数据接收端的存在;
具体地,该第一数据发送端将进一步分析该第二数据发送端是否感知到第一数据接收端的存在,例如分析该第二数据发送端与该第一数据接收端是否处于同一个BSS,若分析出该第二数据发送端能感知到第一数据接收端的存在,那么触发执行步骤S206,否则触发执行步骤S204。
步骤S204:所述第一数据发送端向所述第一数据接收端发送数据;
具体地,该第一数据发送端获知第一数据接收端和第二数据接收端若同时接收数据,第二数据发送端进行数据的发送不会对第一数据接收端的接收造成干扰,第一数据发送端进行数据的发送同样不会对第二数据接收端的接收造成干扰,那么该第一数据发送端可以向该第一数据接收端发送数据。
步骤S206:结束流程。
具体地,步骤S206不限于结束流程,还可以进行下一步的判断或分析,或第一数据发送端将其CCA设置为繁忙,不进行数据的发送等,这里不作限定。
通过实施本发明实施例,当第一数据发送端感知到第二数据发送端向第二数据接收端发送数据时;该第一数据发送端判断是否感知到该第二数据接收端的存在,当判断结果为否时,该第一数据发送端分析该第二数据发送端是否感知到该第一数据接收端的存在;当分析结果为否时,该第一数据发送端向该第一数据接收端发送数据;解决了现有技术中处于OBSS的设备不能同时发送数据的问题,通过改进现有技术中的CCA机制实现了处于OBSS中的设备同时进行数据的发送,大大提高了系统频谱利用率。
进一步地,如图3示出的本发明提供的无线通信方法的另一实施例的流程示意图,该方法包括:
步骤S300:所述第一数据发送端收集感知到的站点设备的信息,并生成第一信息集合;
具体地,第一数据发送端可以收集周围站点设备的信息,例如感知到的站点设备的媒体访问控制(Media Access Control,MAC)地址和接收信号强度指 示(Received Signal Strength Indication,RSSI)等,并生成第一信息集合,即可以包含多个站点设备的信息。
步骤S302:所述第一数据发送端接收所述第二数据发送端发送的第二信息集合;
具体地,该第二信息集合为该第二数据发送端收集感知到的站点设备的信息,并生成的第二信息集合;处于OBSS的设备相互之间可以采用分享的方式,相互发送各自生成的信息集合,即所述第一数据发送端收集感知到的站点设备的信息,并生成第一信息集合后,可以将所述第一信息集合发送给处于所述OBSS中的其它站点设备;第二数据发送端收集感知到的站点设备的信息,并生成第二信息集合后,可以将所述第二信息集合发送给处于所述OBSS中的其它站点设备。那么,第一数据发送端接收到了第二数据发送端发送的第二信息集合。
步骤S304:当第一数据发送端感知到第二数据发送端向第二数据接收端发送数据时;查看所述第一信息集合中是否包含所述第二数据接收端的信息;
具体地,第一数据发送端可以通过查看第一信息集合中是否包含第二数据接收端的信息来判断是否感知到所述第二数据接收端的存在,当查看结果为是时,判断出感知到所述第二数据接收端的存在,触发执行步骤S310;当查看结果为否时,判断出没有感知到所述第二数据接收端的存在,触发执行步骤S306。
步骤S306:查看所述第二信息集合中是否包含所述第一数据接收端的信息;
具体地,第一数据发送端可以通过查看第二信息集合中是否包含该第一数据接收端的信息来分析该第二数据发送端感知到该第一数据接收端的存在,当查看结果为是时,分析出所述第二数据发送端感知到所述第一数据接收端的存在,触发执行步骤S310;当查看结果为否时,分析出所述第二数据发送端没有感知到所述第一数据接收端的存在,触发执行步骤S306。。
步骤S308:所述第一数据发送端向所述第一数据接收端发送数据;
具体地,该第一数据发送端获知第一数据接收端和第二数据接收端若同时接收数据,第二数据发送端进行数据的发送不会对第一数据接收端的接收造成干扰,第一数据发送端进行数据的发送同样不会对第二数据接收端的接收造成干扰,那么该第一数据发送端可以向该第一数据接收端发送数据。
步骤S310:结束流程。
具体地,步骤S310不限于结束流程,还可以进行下一步的判断或分析,或第一数据发送端将其CCA设置为繁忙,不进行数据的发送等,这里不作限定。
再进一步地,如图4示出的本发明提供的无线通信方法的另一实施例的流程示意图,该方法包括:
步骤S400:当第一数据发送端感知到第二数据发送端向第二数据接收端发送数据时;所述第一数据发送端判断是否感知到所述第二数据接收端的存在;
具体地,该第一数据发送端与该第二数据发送端处于OBSS中,且该第一数据发送端需要向第一数据接收端发送数据;当该第一数据发送端判断出能感知到第二数据接收端的存在,例如该第一数据发送端与该第二数据接收端处于同一个BSS,那么触发执行步骤S402,否则触发执行步骤S404;
步骤S402:所述第一数据发送端分析所述第二数据发送端是否感知到所述第一数据接收端的存在;
具体地,该第一数据发送端将进一步分析该第二数据发送端是否感知到第一数据接收端的存在,例如分析该第二数据发送端与该第一数据接收端是否处于同一个BSS,若分析出该第二数据发送端能感知到第一数据接收端的存在,那么触发执行步骤S412,否则触发执行步骤S406。
步骤S404:所述第一数据发送端分析所述第二数据发送端是否感知到所述第一数据接收端的存在;
具体地,该第一数据发送端将进一步分析该第二数据发送端是否感知到第一数据接收端的存在,例如分析该第二数据发送端与该第一数据接收端是否处于同一个BSS,若分析出该第二数据发送端能感知到第一数据接收端的存在,那么触发执行步骤S412,否则触发执行步骤S410。
步骤S406:所述第一数据发送端检测收集到的所述第一数据接收端对应的接收信号强度指示是否大于所述第二数据接收端对应的接收信号强度指示;
具体地,该第一数据发送端可以预先收集到周边站点设备的RSSI信息,并判断第一数据接收端对应的RSSI是否大于所述第二数据接收端对应的RSSI,若大于则执行步骤S408,否则执行步骤S412。
步骤S408:通过传输功率控制降低所述第一数据发送端的发射功率,并在所述第一数据发送端没有感知到所述第二数据接收端的存在后,向所述第一数据接收端发送数据。
具体地,通过传输功率控制(Transmission Power Control,TPC)来降低第一数据发送端的发射功率,以达到该第一数据发送端感知不到该第二数据接收端的存在,但能感知到第一数据接收端的存在,那么可以向该第一数据接收端发送数据。
步骤S410:所述第一数据发送端向所述第一数据接收端发送数据;
具体地,该第一数据发送端获知第一数据接收端和第二数据接收端若同时接收数据,第二数据发送端进行数据的发送不会对第一数据接收端的接收造成干扰,第一数据发送端进行数据的发送同样不会对第二数据接收端的接收造成干扰,那么该第一数据发送端可以向该第一数据接收端发送数据。
步骤S412:结束流程。
具体地,步骤S412不限于结束流程,还可以进行下一步的判断或分析,或第一数据发送端将其CCA设置为繁忙,不进行数据的发送等,这里不作限定。
通过实施本发明实施例,当第一数据发送端感知到第二数据发送端向第二数据接收端发送数据时;该第一数据发送端判断是否感知到该第二数据接收端的存在,当判断结果为否时,该第一数据发送端分析该第二数据发送端是否感知到该第一数据接收端的存在;当分析结果为否时,该第一数据发送端向该第一数据接收端发送数据;解决了现有技术中处于OBSS的设备不能同时发送数据的问题,通过改进现有技术中的CCA机制实现了处于OBSS中的设备同时进行数据的发送,大大提高了系统频谱利用率。
上述详细阐述了本发明实施例的方法,下面为了便于更好地实施本发明实施例的上述方案,相应地,下面还提供用于配合实施上述方案的相关设备。
如图5示出的本发明提供的无线通信设备的结构示意图,无线通信设备50即方法项实施例对应的第一数据发送端,无线通信设备50可以包括感知判断模块500、感知分析模块502和数据发送模块504,其中
感知判断模块500用于当感知到第二数据发送端向第二数据接收端发送数据时,判断是否感知到所述第二数据接收端的存在;其中所述第一数据发送端与所述第二数据发送端处于重叠基本服务集OBSS中,且所述第一数据发送端需要向第一数据接收端发送数据;
感知分析模块502用于当感知判断模块500的判断结果为否时,分析所述 第二数据发送端是否感知到所述第一数据接收端的存在;
数据发送模块504用于当感知分析模块502的分析结果为否时,所述第一数据发送端向所述第一数据接收端发送数据。
具体地,如图6示出的本发明提供的无线通信设备的另一实施例的结构示意图,无线通信设备50即方法项实施例对应的第一数据发送端,无线通信设备50可以包括感知判断模块500、感知分析模块502和数据发送模块504外,还可以包括信息收集生成模块506,且感知判断模块500可以包括第一查看单元5000,其中
信息收集生成模块506用于在感知判断模块500判断是否感知到所述第二数据接收端的存在之前,收集感知到的站点设备的信息,并生成第一信息集合;
第一查看单元5000用于查看所述第一信息集合中是否包含所述第二数据接收端的信息;当查看结果为是时,判断出感知到所述第二数据接收端的存在;当查看结果为否时,判断出没有感知到所述第二数据接收端的存在。
进一步地,如图7示出的本发明提供的无线通信设备的另一实施例的结构示意图,无线通信设备50即方法项实施例对应的第一数据发送端,无线通信设备50可以包括感知判断模块500、感知分析模块502、数据发送模块504和信息收集生成模块506外,还可以包括信息集合接收模块508,且感知判断模块500可以包括第一查看单元5000和第二查看单元5002,其中
信息集合接收模块508用于在感知分析模块502分析所述第二数据发送端是否感知到所述第一数据接收端的存在之前,接收所述第二数据发送端发送的第二信息集合;所述第二信息集合为所述第二数据发送端收集感知到的站点设备的信息,并生成的第二信息集合;
第二查看单元5002用于查看所述第二信息集合中是否包含所述第一数据接收端的信息;当查看结果为是时,分析出所述第二数据发送端感知到所述第一数据接收端的存在;当查看结果为否时,分析出所述第二数据发送端没有感知到所述第一数据接收端的存在。
再进一步地,如图8示出的本发明提供的无线通信设备的另一实施例的结构示意图,无线通信设备50即方法项实施例对应的第一数据发送端,无线通信设备50可以包括感知判断模块500、感知分析模块502、数据发送模块504、信息收集生成模块506和信息集合接收模块508外,还包括信息集合发送模块 5010,用于在信息收集生成模块506收集感知到的站点设备的信息,并生成第一信息集合后,将所述第一信息集合发送给处于所述OBSS中的其它站点设备。
再进一步地,如图9示出的本发明提供的无线通信设备的另一实施例的结构示意图,无线通信设备50可以包括感知判断模块500、感知分析模块502、数据发送模块504、信息收集生成模块506、信息集合接收模块508和信息集合发送模块5010外,还可以包括:检测模块5012和控制发送模块5014,其中
检测模块5012用于当感知判断模块500判断出感知到所述第二数据接收端的存在,并感知分析模块502分析出所述第二数据发送端没有感知到所述第一数据接收端的存在时,检测收集到的所述第一数据接收端对应的接收信号强度指示是否大于所述第二数据接收端对应的接收信号强度指示;
控制发送模块5014用于当检测模块5012的检测结果为是时,通过传输功率控制降低所述第一数据发送端的发射功率,并在所述第一数据发送端没有感知到所述第二数据接收端的存在后,向所述第一数据接收端发送数据。
可理解的是,本实施例的无线通信设备50的各功能模块的功能可根据上述方法实施例中的方法具体实现,此处不再赘述。本发明实施例的无线接收设备50例如可以是平板电脑、个人数码助理、智能移动终端或其它网络设备。
为了便于更好地实施本发明实施例的上述方案,本发明还提供了用于配合实施上述方案的相关系统。下面结合图10示出的本发明提供的无线通信系统的结构示意图,进行详细说明:
无线通信系统10包括第一数据发送设备100、第二数据发送设备102、第一数据接收设备104以及第二数据接收设备106,其中
第一数据发送设备100可以为上述实施例中的无线通信设备50,这里不再赘述。第二数据发送设备102、第一数据接收设备104以及第二数据接收设备106可以分别对应上述实施例中的第二数据接收端、第一数据接收端以及第二数据接收端。
无线通信系统10如何进行无线通信,可根据上述方法实施例中的方法具体实现,这里不再赘述。
通过实施本发明实施例,当第一数据发送端感知到第二数据发送端向第二数据接收端发送数据时;该第一数据发送端判断是否感知到该第二数据接收端 的存在,当判断结果为否时,该第一数据发送端分析该第二数据发送端是否感知到该第一数据接收端的存在;当分析结果为否时,该第一数据发送端向该第一数据接收端发送数据;解决了现有技术中处于OBSS的设备不能同时发送数据的问题,通过改进现有技术中的CCA机制实现了处于OBSS中的设备同时进行数据的发送,大大提高了系统频谱利用率。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流程,是可以通过计算机程序来指令相关的硬件来完成,所述的程序可存储于一计算机可读取存储介质中,该程序在执行时,可包括如上述各方法的实施例的流程。其中,所述的存储介质可为磁碟、光盘、只读存储记忆体(Read-Only Memory,ROM)或随机存储记忆体(Random Access Memory,RAM)等。
以上所揭露的仅为本发明一种较佳实施例而已,当然不能以此来限定本发明之权利范围,本领域普通技术人员可以理解实现上述实施例的全部或部分流程,并依本发明权利要求所作的等同变化,仍属于发明所涵盖的范围。

Claims (10)

  1. 一种无线通信方法,其特征在于,包括:
    当第一数据发送端感知到第二数据发送端向第二数据接收端发送数据时;所述第一数据发送端判断是否感知到所述第二数据接收端的存在;其中所述第一数据发送端与所述第二数据发送端处于重叠基本服务集OBSS中,且所述第一数据发送端需要向第一数据接收端发送数据;
    当判断结果为否时,所述第一数据发送端分析所述第二数据发送端是否感知到所述第一数据接收端的存在;
    当分析结果为否时,所述第一数据发送端向所述第一数据接收端发送数据。
  2. 如权利要求1所述的无线通信方法,其特征在于,所述第一数据发送端判断是否感知到所述第二数据接收端的存在之前,还包括:所述第一数据发送端收集感知到的站点设备的信息,并生成第一信息集合;
    所述第一数据发送端判断是否感知到所述第二数据接收端的存在,包括:
    查看所述第一信息集合中是否包含所述第二数据接收端的信息;当查看结果为是时,判断出感知到所述第二数据接收端的存在;当查看结果为否时,判断出没有感知到所述第二数据接收端的存在。
  3. 如权利要求1所述的无线通信方法,其特征在于,所述第一数据发送端分析所述第二数据发送端是否感知到所述第一数据接收端的存在之前,还包括:所述第一数据发送端接收所述第二数据发送端发送的第二信息集合;所述第二信息集合为所述第二数据发送端收集感知到的站点设备的信息集合;
    所述第一数据发送端分析所述第二数据发送端是否感知到所述第一数据接收端的存在,包括:
    查看所述第二信息集合中是否包含所述第一数据接收端的信息;当查看结果为是时,分析出所述第二数据发送端感知到所述第一数据接收端的存在;当查看结果为否时,分析出所述第二数据发送端没有感知到所述第一数据接收端的存在。
  4. 如权利要求2所述的无线通信方法,其特征在于,还包括:
    所述第一数据发送端收集感知到的站点设备的信息,并生成第一信息集合后,将所述第一信息集合发送给处于所述OBSS中的其它站点设备。
  5. 如权利要求1-4中任一项所述的无线通信方法,其特征在于,当所述第一数据发送端判断出感知到所述第二数据接收端的存在时,所述第一数据发送端分析所述第二数据发送端是否感知到所述第一数据接收端的存在,在分析出所述第二数据发送端没有感知到所述第一数据接收端的存在时,还包括:
    所述第一数据发送端检测收集到的所述第一数据接收端对应的接收信号强度指示是否大于所述第二数据接收端对应的接收信号强度指示;
    当检测结果为是时,通过传输功率控制降低所述第一数据发送端的发射功率,并在所述第一数据发送端没有感知到所述第二数据接收端的存在后,向所述第一数据接收端发送数据。
  6. 一种无线通信设备,其特征在于,所述无线通信设备作为第一数据发送端,包括:
    感知判断模块,用于当感知到第二数据发送端向第二数据接收端发送数据时,判断是否感知到所述第二数据接收端的存在;其中所述第一数据发送端与所述第二数据发送端处于重叠基本服务集OBSS中,且所述第一数据发送端需要向第一数据接收端发送数据;
    感知分析模块,用于当所述感知判断模块的判断结果为否时,分析所述第二数据发送端是否感知到所述第一数据接收端的存在;
    数据发送模块,用于当所述感知分析模块的分析结果为否时,所述第一数据发送端向所述第一数据接收端发送数据。
  7. 如权利要求6所述的无线通信设备,其特征在于,还包括:
    信息收集生成模块,用于在所述感知判断模块判断是否感知到所述第二数据接收端的存在之前,收集感知到的站点设备的信息集合;
    所述感知判断模块包括:
    第一查看单元,用于查看所述第一信息集合中是否包含所述第二数据接收 端的信息;当查看结果为是时,判断出感知到所述第二数据接收端的存在;当查看结果为否时,判断出没有感知到所述第二数据接收端的存在。
  8. 如权利要求6所述的无线通信设备,其特征在于,还包括:
    信息集合接收模块,用于在所述感知分析模块分析所述第二数据发送端是否感知到所述第一数据接收端的存在之前,接收所述第二数据发送端发送的第二信息集合;所述第二信息集合为所述第二数据发送端收集感知到的站点设备的信息,并生成的第二信息集合;
    所述感知分析模块包括:
    第二查看单元,用于查看所述第二信息集合中是否包含所述第一数据接收端的信息;当查看结果为是时,分析出所述第二数据发送端感知到所述第一数据接收端的存在;当查看结果为否时,分析出所述第二数据发送端没有感知到所述第一数据接收端的存在。
  9. 如权利要求7所述的无线通信设备,其特征在于,还包括:
    信息集合发送模块,用于在所述信息收集生成模块收集感知到的站点设备的信息,并生成第一信息集合后,将所述第一信息集合发送给处于所述OBSS中的其它站点设备。
  10. 如权利要求6-9中任一项所述的无线通信设备,其特征在于,还包括:
    检测模块,用于当所述感知判断模块判断出感知到所述第二数据接收端的存在,并且所述感知分析模块分析出所述第二数据发送端没有感知到所述第一数据接收端的存在时,检测收集到的所述第一数据接收端对应的接收信号强度指示是否大于所述第二数据接收端对应的接收信号强度指示;
    控制发送模块,用于当所述检测模块的检测结果为是时,通过传输功率控制降低所述第一数据发送端的发射功率,并在所述第一数据发送端没有感知到所述第二数据接收端的存在后,向所述第一数据接收端发送数据。
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