WO2016179837A1 - 一种调整竞争窗口的装置、方法、网络设备、终端及网络系统 - Google Patents

一种调整竞争窗口的装置、方法、网络设备、终端及网络系统 Download PDF

Info

Publication number
WO2016179837A1
WO2016179837A1 PCT/CN2015/078973 CN2015078973W WO2016179837A1 WO 2016179837 A1 WO2016179837 A1 WO 2016179837A1 CN 2015078973 W CN2015078973 W CN 2015078973W WO 2016179837 A1 WO2016179837 A1 WO 2016179837A1
Authority
WO
WIPO (PCT)
Prior art keywords
terminal
contention window
terminals
adjustment scheme
network device
Prior art date
Application number
PCT/CN2015/078973
Other languages
English (en)
French (fr)
Inventor
张力学
Original Assignee
华为技术有限公司
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 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201580071593.3A priority Critical patent/CN107113872B/zh
Priority to PCT/CN2015/078973 priority patent/WO2016179837A1/zh
Publication of WO2016179837A1 publication Critical patent/WO2016179837A1/zh

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to an apparatus, method, network device, terminal, and network system for adjusting a contention window.
  • a terminal in a network system covered by the same base station generally performs data according to a CSMA/CA (Carrier Sense Multiple Access with Collision Avoidance) protocol in the process of information transmission. transmission.
  • CSMA/CA Carrier Sense Multiple Access with Collision Avoidance
  • the terminal transmits data through the channel it first listens to whether the wireless channel is in a busy state, that is, whether to listen to whether data is being transmitted in the wireless channel at this time.
  • the terminal waits until the channel is in an idle state; when the channel is in an idle state, the terminal delays for a period of time, such as: SIFS (Short Inter-Frame Space), PIFS (Point Inter-Frame Space) , PCF interframe gap) or DIFS (Distributed Inter-Frame Spacing), then divide the contention window (CW) into (CW-1) parts according to the uniform distribution rule, and obtain the interval. [0, CW-1], and select an integer from the interval as the initial value of the backoff counter. When the value of the backoff counter is reduced to 0 and the channel is still idle, the terminal can acquire the channel to send data. .
  • SIFS Short Inter-Frame Space
  • PIFS Point Inter-Frame Space
  • PCF interframe gap PCF interframe gap
  • DIFS Distributed Inter-Frame Spacing
  • the user can increase or decrease the contention window of the terminal by manually adjusting to improve the success rate of channel acquisition. For example, after the user narrows the contention window of the terminal A, and the size of the contention window of the other terminal does not change, the probability that the terminal A acquires the transmission opportunity of the channel in the network system increases. However, this also reduces the probability that other terminals in the network system acquire transmission opportunities of the channel, so that the terminals in the network system cannot compete for resources fairly.
  • the embodiments of the present invention provide an apparatus, a method, a network device, a terminal, and a network system for adjusting a contention window, which can improve fairness of a terminal's contention resources in a network system.
  • the embodiment of the present invention adopts the following technical solutions:
  • an embodiment of the present invention provides an apparatus for adjusting a contention window, where the apparatus includes:
  • An acquiring module configured to acquire terminal information, where the terminal information includes a number of terminals or a terminal list The number of times the competition failed in a bit time;
  • a determining module configured to determine, according to the terminal information acquired by the acquiring module, an adjustment scheme of the contention window of the terminal, where the adjustment scheme is used by the terminal according to the adjustment, when the terminal information exceeds a preset threshold
  • the solution adjusts the contention window of the terminal.
  • the determining module is specifically configured to:
  • the terminal is configured to increase the contention window according to the first preset relationship, where the first preset relationship includes a matching relationship between the number of terminals and the size of the contention window; or
  • the adjusting scheme of determining the contention window of the terminal is that all the terminals adjust the contention window according to the first preset relationship, and the first quantity threshold is greater than or equal to the second quantity threshold.
  • the determining module is specifically configured to:
  • Determining the adjustment scheme of the contention window of the terminal is that all the terminals increase the contention window according to the second preset relationship, where the second preset relationship includes the number of times of competition failure in the terminal unit time and the size of the contention window. a matching relationship; or an adjustment scheme for determining the contention window of the terminal, the all the terminals narrowing the contention window according to the second preset relationship, where the first time threshold is greater than or equal to the first Two number of thresholds.
  • the apparatus further includes:
  • a sending module configured to send, by using a broadcast manner, the adjustment scheme determined by the determining module to all terminals.
  • an embodiment of the present invention provides a method for adjusting a contention window, where the method includes:
  • the network device acquires terminal information, where the terminal information includes the number of terminals or the number of times the terminal fails to compete in the unit time;
  • the network device determines, according to the terminal information, an adjustment scheme of the contention window of the terminal, where the adjustment scheme is used by the terminal to adjust the The competition window of the terminal.
  • the network device determines, according to the terminal information, an adjustment scheme of the contention window of the terminal, including:
  • the determining, by the network device, the adjustment scheme of the contention window of the terminal is that all the terminals increase the contention window according to the first preset relationship, where the first preset relationship includes a matching relationship between the number of terminals and the size of the contention window. ;or,
  • the network device determines the terminal according to the terminal information.
  • the adjustment scheme of the competition window includes:
  • the method further includes:
  • the network device sends the adjustment scheme to all terminals by using a broadcast manner.
  • an embodiment of the present invention provides a network device, where the network device is configured with a receiver, a transmitter, a memory, and a processor;
  • the memory for storing information including program instructions
  • the receiver is configured to acquire terminal information, where the terminal information includes the number of terminals or the number of times the terminal fails to compete in the unit time;
  • the processor is configured to: when the terminal information exceeds a preset threshold, the network device determines, according to the terminal information, an adjustment scheme of the contention window of the terminal, where the adjustment scheme is used The terminal adjusts a contention window of the terminal according to the adjustment scheme.
  • the processor when the terminal information is the number of the terminals, the processor is specifically configured to:
  • the terminal is configured to increase the contention window according to the first preset relationship, where the first preset relationship includes a matching relationship between the number of terminals and the size of the contention window; or
  • the adjusting scheme of determining the contention window of the terminal is that all the terminals adjust the contention window according to the first preset relationship, and the first quantity threshold is greater than or equal to the second quantity threshold.
  • the processor when the terminal information is the number of times the content of the terminal fails in the unit time, the processor is specifically configured to:
  • Determining the adjustment scheme of the contention window of the terminal is that all the terminals increase the contention window according to the second preset relationship, where the second preset relationship includes the number of times of competition failure in the terminal unit time and the size of the contention window. a matching relationship; or an adjustment scheme for the contention window of the terminal, wherein all the terminals adjust the contention window according to the second preset relationship, where the first time threshold is greater than or equal to the second Number of thresholds.
  • the transmitter is specifically configured to:
  • the adjustment scheme is sent to all terminals by broadcast.
  • an embodiment of the present invention provides a terminal, where the terminal is provided with a receiver, a transmitter, a memory, and a processor;
  • the memory for storing information including program instructions
  • the transmitter is configured to send terminal information, where the terminal information includes the number of terminals or the number of times the terminal fails to compete in the unit time;
  • the receiver is configured to acquire an adjustment scheme of the contention window of the terminal
  • the processor is configured to adjust a contention window of the terminal according to the adjustment scheme.
  • the fifth aspect the embodiment of the present invention provides a network system, where the network system includes the network device according to any one of the third aspects, and the terminal according to the fourth aspect.
  • the device, the method, the network device, the terminal, and the network system for adjusting the contention window provided by the embodiment of the present invention, when the terminal information acquired by the network device exceeds a preset threshold, the network device
  • the adjustment scheme of the contention window of the terminal is determined according to the terminal information, so that the terminal adjusts the contention window of the terminal according to the adjustment scheme.
  • the embodiment of the present invention can obtain the terminal information by using the network device, and determine the adjustment scheme according to the terminal information, and then adjust the solution according to the terminal information, as compared with the contention window of the one or more terminals.
  • FIG. 1 is a schematic structural diagram of a specific application scenario according to an embodiment of the present disclosure
  • FIG. 2 is a flowchart of a method for adjusting a contention window according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of a time process of data transmission in a specific application scenario according to an embodiment of the present disclosure
  • FIG. 4 is a flowchart of another method for adjusting a contention window according to an embodiment of the present invention.
  • FIG. 5 is a flowchart of another method for adjusting a contention window according to an embodiment of the present invention.
  • FIG. 6 is a flowchart of another method for adjusting a contention window according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of an apparatus for adjusting a contention window according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of an apparatus for adjusting a contention window according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of a network device according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic structural diagram of a network system according to an embodiment of the present invention.
  • the embodiment of the present invention may be used in a network system, where the network system includes at least: a terminal and a network device, where the network device is used to provide an interface for the terminal to access the network, for example, providing an interface for the terminal to access the wireless network.
  • Base station In the network system shown in Figure 1, the terminal A and the terminal B can use DSRC (Dedicated Short Range Communication) interface or other 802.11 interface for data transmission; between the base station and the terminal A, or the base station.
  • the interface between the base station and the LTE (Long Term Evolution) terminal can be used for data transmission, for example, the LTE-Uu interface is used for data transmission.
  • the embodiment of the invention provides a method for adjusting a contention window, which is implemented by a network device. As shown in FIG. 2, the method includes:
  • the network device acquires terminal information.
  • the terminal information includes the number of terminals and the number of times the terminal fails to compete in the unit time.
  • step 102 is performed. Otherwise, there is no need to determine an adjustment scheme of the contention window of the terminal.
  • the network device is a base station
  • the base station can periodically acquire terminal information, for example, the number of times each terminal in the coverage area of the network provided by the base station fails to compete in the statistical unit time.
  • the counter can be set on the terminal, and the initial value of the counter is set to 0.
  • each competition fails the number of times the terminal competes for failure recorded by the counter on the terminal can be increased by 1, and when the unit time is reached, The number of times the terminal has failed to be recorded by the counter is sent to the base station, and the counter is cleared.
  • each terminal in the area covered by the network provided by the base station reports the result of the competition failure to the base station every time the competition fails, and the base station records separately. The number of times each terminal fails to compete, when the unit time is reached, the base station separately counts the number of times each terminal has failed to compete.
  • the base station can also acquire terminal information in real time, for example, real-time acquisition of the number of terminals in the area covered by the network provided by the base station, and the base station can send a message to each terminal in the coverage area of the network provided by the base station by broadcasting, in each After receiving the message broadcast by the base station, the terminal sends a response message to the base station.
  • the base station can determine the number of terminals in the area covered by the network provided by the current base station by counting the number of response messages sent by the terminal.
  • the terminal information may include not only the number of terminals or the number of times the terminal fails to compete in the unit time, but also other parameters that affect the probability of the terminal acquiring resources.
  • the network device determines, according to the terminal information, an adjustment scheme of the contention window of the terminal.
  • the adjustment scheme is used by the terminal to adjust a contention window of the terminal according to the adjustment scheme.
  • the network device may determine an adjustment scheme of the contention window of the terminal according to the number of terminals; or, when the number of times of competition failure in the unit time exceeds a preset threshold When the value is obtained, the network device may determine an adjustment scheme of the terminal contention window according to the number of times of competition failure in the unit time. It should be noted that the specific implementation manners of the above two adjustment schemes for determining the contention window of the terminal are proposed later.
  • the first time axis and the second time axis shown in FIG. 3 are time processes for data transmission according to the CSMA/CA protocol, and the contention window on the first time axis in FIG. 3 is adjusted to obtain a second time axis.
  • the time when the channel is busy on the time axis is the time period a with the point a as the starting point and the point b as the end point; the frame interval SIFS of the delay on the time axis is the time starting from the point b and ending at the point c.
  • the frame interval PIFS of the delay on the time axis is the time period bd with the point b as the starting point and the point d as the end point;
  • the frame interval DIFS of the delay on the time axis starts with the point b as the starting point and ends with the point e
  • the contention window on the first time axis is the time period ef1 starting from the point e, ending at the point f1, and the frame transmission time is the time period f1g1 starting from the point f1 and ending at the point g1;
  • the contention window on the second time axis is the time period ef2 starting from the point e and ending at the point f2, and the frame transmission time is the time period f2g2 starting from the point f2 and ending at the point g2.
  • the frame transmission time on the first time axis and the second time axis is the same, the size of the contention window is different, and the competition window on the second time axis takes up more time than the competition window on the first time axis.
  • the principle of data transmission is compared with the time course of data transmission on the second time axis as shown in FIG. 3, and the contention window is small during the time of data transmission on the first time axis.
  • the method for adjusting the contention window is provided by the embodiment of the present invention.
  • the network device determines the adjustment scheme of the contention window of the terminal according to the terminal information, so that the terminal adjusts according to the adjustment scheme.
  • the competition window of the terminal can obtain the terminal information by using the network device, and determine the adjustment scheme according to the terminal information, and then adjust the solution according to the terminal information, as compared with the contention window of the one or more terminals.
  • the number of terminals When the number of terminals is large, the probability of terminal collision is large, and the probability of the terminal acquiring resources is small. When the number of terminals is small, the probability of terminal collision is small, and the probability of the terminal acquiring resources is large. Therefore, the number of terminals can be affected. The probability of a terminal collision, which affects the probability of the terminal acquiring resources.
  • the number of terminals may be used as a parameter for examining the probability of the terminal acquiring the resource.
  • the steps are performed.
  • the determining, by the network device, the adjustment scheme of the contention window of the terminal according to the terminal information may be specifically implemented as step 1021 or step 1022 as shown in FIG. 4:
  • the network device determines that the terminal contention window is adjusted according to the first preset relationship that all terminals increase the contention window.
  • the first preset relationship includes a matching relationship between the number of terminals and the size of the contention window. It should be noted that the preset relationship may be preset by the user according to different application scenarios. The first preset relationship may be specifically used to indicate a one-to-many matching relationship between different numbers of terminals and contention window sizes, and many-to-one. A matching relationship, or a list of one-to-one matching relationships.
  • the network device determines an adjustment scheme of the contention window of the terminal, where the all terminals adjust the contention window according to the first preset relationship.
  • a method for adjusting a contention window is provided by the embodiment of the present invention.
  • the network device determines the tone of the terminal competition window according to the number of terminals.
  • the whole scheme is to increase or decrease the competition window for all terminals according to the first preset relationship, so that all terminals adjust or enlarge the competition window according to the adjustment scheme.
  • the number of terminals can be obtained through the network device, and the adjustment scheme is determined according to the number of terminals, and then the terminal adjusts according to the adjustment scheme.
  • the terminal unit time The number of times of competition failure can be used to reflect the probability of the terminal acquiring resources per unit time.
  • the number of times the terminal fails to compete in a unit time may be used as a parameter for examining the probability of the terminal acquiring the resource.
  • the network device determines the adjustment scheme of the terminal contention window according to the terminal information, based on the implementation manner shown in FIG. It can be specifically implemented as step 1023 or step 1024 as shown in FIG. 5:
  • the network device determines an adjustment scheme of the contention window of the terminal, so that all the terminals increase the contention window according to the second preset relationship.
  • the second preset relationship includes a matching relationship between the number of times the contention fails in the unit time and the size of the contention window. It should be noted that the second preset relationship may be specifically used to indicate a one-to-many matching relationship between the number of different competition failures of the terminal unit time and the size of the contention window, a many-to-one matching relationship, or one-to-one A list of matching relationships.
  • the terminal may establish a connection with the base station, and request the base station to forward the data to be transmitted to other terminals, or request the base station to allocate dedicated resources for the terminal to send data to other terminals, and the base station may receive the terminal to send through the statistical unit time. The number of requests to determine the number of times the terminal failed in the unit time.
  • start time and the end time of the unit time may be preset by the user according to different application scenarios; the reason for the contention failure is not specifically limited in the embodiment of the present invention, and may include the process in which the terminal competes for resources. A collision occurs in the middle.
  • the network device determines that the adjustment scheme of the terminal contention window is all the ends.
  • the terminal reduces the contention window according to the second preset relationship.
  • the method for adjusting the contention window provided by the embodiment of the present invention, when the number of times of the competition failure of the terminal unit obtained by the network device exceeds the preset threshold, the network device determines the terminal contention window according to the number of times of the competition failure in the unit time.
  • the adjustment scheme is to increase or decrease the competition window for all terminals according to the second preset relationship, so that all terminals adjust or enlarge the competition window according to the adjustment scheme.
  • the contention of the competition window of the one or more terminals is separately adjusted by the user, and the network device can obtain the number of times of the competition failure in the unit time, and the competition fails according to the terminal unit time.
  • the number of times determines the adjustment scheme, and then the terminal adjusts the competition window of the terminal according to the adjustment scheme, so that the terminal whose number of times of competition failure per unit time exceeds the preset threshold is involved in the adjustment, so as to simultaneously improve or reduce the network system.
  • the network device may send an adjustment scheme to all terminals in a broadcast manner, in order to ensure that all the terminals in the network system can receive the adjustment scheme sent by the network device. Therefore, on the basis of the implementation manner shown in FIG. 2, an implementation manner as shown in FIG. 6 can also be implemented. That is, after the step 102 is completed, step 103 can also be performed:
  • the network device sends the adjustment scheme to all terminals by using a broadcast manner.
  • the base station may obtain terminal information by using RRC (Radio Resource Control) signaling, and after transmitting the broadcast solution, for example, MBMS (Multimedia Broadcast) Multicast service, multimedia broadcast multicast service, or system information block (SIB), etc., the adjustment scheme is sent to each terminal in the area covered by the network provided by the base station, and then each terminal is received according to each Adjust the competition window by adjusting the parameters related to the contention window carried by the scheme.
  • RRC Radio Resource Control
  • SIB system information block
  • a method for adjusting a contention window is provided by the embodiment of the present invention.
  • the network device determines an adjustment scheme of the contention window of the terminal according to the terminal information, and sends the terminal to the terminal through the broadcast mode.
  • the contention window of the terminal may be obtained by the network device, and the adjustment scheme is determined according to the terminal information, and then sent to all terminals by using a broadcast mode, and the terminal adjusts the contention window of the terminal according to the adjustment scheme. All terminals can receive the adjustment plan sent by the network device.
  • each terminal whose terminal information exceeds the preset threshold participates in the adjustment, so as to simultaneously increase or decrease the probability of all terminals in the network system acquiring resources, thereby improving The fairness of terminal competition resources in network systems.
  • An embodiment of the present invention provides an apparatus 20 for adjusting a contention window. As shown in FIG. 7, the apparatus 20 shown in FIG. 7 is configured to perform the method shown in FIG.
  • the obtaining module 21 is configured to acquire terminal information, where the terminal information includes the number of terminals or the number of times the terminal fails to compete in the unit time.
  • the determining module 22 is configured to determine, according to the terminal information acquired by the acquiring module 21, an adjustment scheme of the contention window of the terminal, where the terminal is configured to be used by the terminal according to the The adjustment scheme is adjusted to adjust the competition window of the terminal.
  • the apparatus 20 shown in FIG. 7 is configured to perform the method shown in FIG.
  • the terminal is configured to increase the contention window according to the first preset relationship, where the first preset relationship includes a matching relationship between the number of terminals and the size of the contention window; or
  • the adjustment scheme for determining the contention window of the terminal is that all the terminals adjust the contention window according to the first preset relationship.
  • the apparatus 20 shown in FIG. 7 is configured to execute the method shown in FIG. 5, and the determining module 22 is specifically configured to:
  • Determining the adjustment scheme of the contention window of the terminal is that all the terminals increase the contention window according to the second preset relationship, where the second preset relationship includes the number of times of competition failure in the terminal unit time and the size of the contention window. a matching relationship; or an adjustment scheme for determining the contention window of the terminal, the all the terminals narrowing the contention window according to the second preset relationship.
  • the apparatus 20 shown in FIG. 8 is configured to perform the method shown in FIG. 6.
  • the apparatus 20 further includes:
  • the sending module 23 is configured to send, by using a broadcast mode, the adjustment scheme determined by the determining module 22 to all terminals.
  • the device for adjusting the contention window provided by the embodiment of the present invention, when the terminal information acquired by the network device exceeds the preset threshold, the network device determines the adjustment scheme of the contention window of the terminal according to the terminal information, so that the terminal adjusts according to the adjustment scheme.
  • the competition window of the terminal The embodiment of the present invention can obtain the terminal information by using the network device, and determine the adjustment scheme according to the terminal information, and then adjust the solution according to the terminal information, as compared with the contention window of the one or more terminals.
  • the embodiment of the present invention provides a network device 30.
  • the network device 30 is provided with a receiver 31, a transmitter 32, a memory 33, a processor 34, and a bus 35.
  • the receiver 31 and the transmitter are provided.
  • the memory 33 and the processor 34 are communicably connected by a bus 35.
  • the memory 33 may be a read only memory (ROM), a static storage device, a dynamic storage device, or a random access memory (RAM).
  • the memory 33 can store an operating system and other applications.
  • the program code for implementing the technical solution provided by the embodiment of the present invention is stored in the memory 33 and executed by the processor 34 when the technical solution provided by the embodiment of the present invention is implemented by software or firmware.
  • the receiver 31 and the transmitter 32 are used by the network device 30 and the terminal or the communication network (such as, but not limited to, Ethernet, Radio Access Network (RAN), Wireless Local Area Network (WLAN), etc.) Communication between.
  • the communication network such as, but not limited to, Ethernet, Radio Access Network (RAN), Wireless Local Area Network (WLAN), etc.
  • the processor 34 can be a general-purpose central processing unit (CPU), a microprocessor, an application specific integrated circuit (ASIC), or one or more integrated circuits for executing related programs.
  • CPU central processing unit
  • ASIC application specific integrated circuit
  • Bus 35 may include a path for communicating information between various components in network device 30 (e.g., receiver 31, transmitter 32, memory 33, processor 34).
  • FIG. 9 only shows the memory 33, the receiver 31 and the processor 34 of the network device 30, and the bus 35, in a specific implementation process, those skilled in the art will understand that the terminal also Contains other devices necessary to achieve proper operation. At the same time, hardware devices that implement other functions may be included according to specific needs.
  • the memory 33 is configured to store information including program instructions.
  • the receiver 31 is configured to acquire terminal information, where the terminal information includes the number of terminals or the number of times the terminal fails to compete in the unit time.
  • the processor 34 is configured to: when the terminal information exceeds a preset threshold, the network device determines, according to the terminal information, an adjustment scheme of the contention window of the terminal, where the adjustment scheme is used by the terminal according to the terminal The adjustment scheme adjusts a contention window of the terminal.
  • the processor 34 is specifically configured to:
  • the terminal is configured to increase the contention window according to the first preset relationship, where the first preset relationship includes a matching relationship between the number of terminals and the size of the contention window; or
  • the adjustment scheme for determining the contention window of the terminal is that all the terminals adjust the contention window according to the first preset relationship.
  • the processor 34 when the terminal information is the number of times of the competition failure in the terminal unit time, the processor 34 is specifically configured to:
  • Determining the adjustment scheme of the contention window of the terminal is that all the terminals increase the contention window according to the second preset relationship, where the second preset relationship includes the number of times of competition failure in the terminal unit time and the size of the contention window.
  • the matching relationship; or the adjustment scheme for the contention window of the terminal is that the all terminals adjust the contention window according to the second preset relationship.
  • the transmitter 32 is specifically configured to:
  • the adjustment scheme is sent to all terminals by broadcast.
  • the network device determines an adjustment scheme of the contention window of the terminal according to the terminal information, so that the terminal adjusts the contention window of the terminal according to the adjustment scheme.
  • the embodiment of the present invention can obtain the terminal information by using the network device, and determine the adjustment scheme according to the terminal information, and then adjust the solution according to the terminal information, as compared with the contention window of the one or more terminals. Adjusting the competition window of the terminal, so that each terminal whose terminal information exceeds the preset threshold is involved in the adjustment, so as to simultaneously improve or reduce the probability of all terminals in the network system acquiring resources, thereby improving the fairness of the terminal competition resources in the network system. Sex.
  • the embodiment of the present invention provides a terminal 40.
  • the terminal 40 is provided with The receiver 41, the transmitter 42, the memory 43, the processor 44, and the bus 45, wherein the receiver 41, the transmitter 42, the memory 43, and the processor 44 are communicably connected by a bus 45.
  • the memory 43 may be a read only memory (ROM), a static storage device, a dynamic storage device, or a random access memory (RAM).
  • the memory 43 can store an operating system and other applications.
  • the program code for implementing the technical solution provided by the embodiment of the present invention is stored in the memory 43 and executed by the processor 44 when the technical solution provided by the embodiment of the present invention is implemented by software or firmware.
  • the receiver 41 and the transmitter 42 are used by the terminal 40 and the network device or the communication network (such as, but not limited to, Ethernet, Radio Access Network (RAN), Wireless Local Area Network (WLAN), etc.) Communication between.
  • the communication network such as, but not limited to, Ethernet, Radio Access Network (RAN), Wireless Local Area Network (WLAN), etc.
  • the processor 44 may be a general-purpose central processing unit (CPU), a microprocessor, an application specific integrated circuit (ASIC), or one or more integrated circuits for executing related programs.
  • CPU central processing unit
  • ASIC application specific integrated circuit
  • Bus 45 may include a path for communicating information between various components in terminal 40 (e.g., receiver 41, transmitter 42, memory 43, processor 44).
  • FIG. 9 only shows the memory 43, the receiver 41, and the processor 44 of the terminal 40 and the bus 35, in a specific implementation process, those skilled in the art will understand that the terminal further includes Other devices necessary for proper operation. At the same time, hardware devices that implement other functions may be included according to specific needs.
  • the memory 43 is configured to store information including program instructions.
  • the transmitter 41 is configured to send terminal information, where the terminal information includes the number of terminals or the number of times the terminal fails to compete in the unit time.
  • the receiver 42 is configured to obtain an adjustment scheme of the contention window of the terminal.
  • the processor 44 is configured to adjust a contention window of the terminal according to the adjustment scheme.
  • a terminal provided by the embodiment of the present invention after receiving the adjustment scheme determined by the network device according to the terminal information, adjusts the contention window of the terminal according to the adjustment scheme.
  • the embodiment of the present invention can obtain the terminal information through the network device, and determine the adjustment side according to the terminal information, as compared with the contention window of the one or more terminals. After the case, the terminal adjusts the contention window of the terminal according to the adjustment scheme, so that each terminal whose terminal information exceeds the preset threshold value participates in the adjustment, so as to simultaneously improve or reduce the probability of all terminals in the network system acquiring resources, thereby improving The fairness of terminal competition resources in network systems.
  • the embodiment of the present invention provides a network system 50.
  • the network system 50 includes the network device 30 and the terminal 40.
  • the network system provided by the embodiment of the present invention, when the terminal information acquired by the network device exceeds a preset threshold, the network device determines an adjustment scheme of the contention window of the terminal according to the terminal information, so that the terminal adjusts the competition of the terminal according to the adjustment scheme. window.
  • the embodiment of the present invention can obtain the terminal information by using the network device, and determine the adjustment scheme according to the terminal information, and then adjust the solution according to the terminal information, as compared with the contention window of the one or more terminals. Adjusting the competition window of the terminal, so that each terminal whose terminal information exceeds the preset threshold is involved in the adjustment, so as to simultaneously improve or reduce the probability of all terminals in the network system acquiring resources, thereby improving the fairness of the terminal competition resources in the network system. Sex.

Landscapes

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

Abstract

提供一种调整竞争窗口的装置、方法、网络设备、终端及网络系统，涉及通信技术领域，能够提高网络系统中的终端竞争资源的公平性。调整竞争窗口的方法包括：网络设备获取终端信息，终端信息包括终端数量或终端单位时间内竞争失败的次数；当终端信息超过预设门限值时，网络设备根据终端信息确定终端竞争窗口的调整方案，调整方案用于终端根据调整方案，调整终端的竞争窗口。

Description

一种调整竞争窗口的装置、方法、网络设备、终端及网络系统 技术领域
本发明涉及通信技术领域，尤其涉及一种调整竞争窗口的装置、方法、网络设备、终端及网络系统。
背景技术
在现有技术中，在同一基站所覆盖的网络系统中的终端，在信息传输的过程中，通常根据CSMA/CA(Carrier Sense Multiple Access with Collision Avoidance，载波侦听多址访问)协议进行数据的传输。在终端通过信道发送数据之前先侦听无线信道是否处于忙碌状态，即要侦听此时无线信道中是否有数据正在进行传输。当信道处于忙碌状态时，终端等待至信道处于空闲状态；当信道处于空闲状态时，终端延迟一段时间，比如：SIFS(Short Inter-Frame Space，短帧间间隙)、PIFS(Point Inter-Frame Space，PCF帧间间隙)或DIFS((Distributed Inter-Frame Spacing，DCF帧间间隙)，之后按照均匀分布规则将竞争窗口(Contention Window，CW)在时间上划分成(CW-1)份，得到区间[0，CW-1]，并从区间中选取一个整数作为退避计数器的初始值，当退避计数器的值减为0且信道仍然处于空闲状态时，此时，终端可以获取该信道用以发送数据。
在实际应用中，用户可以通过手动调整将终端的竞争窗口调大或调小，来提高信道获取的成功率。比如：当用户将终端A的竞争窗口调小之后，其他终端的竞争窗口的大小不变，则终端A在网络系统中获取信道的传输机会的几率增大。但是，这同时也降低了网络系统中其他终端获取信道的传输机会的几率，使网络系统中的终端无法公平的竞争资源。
发明内容
本发明实施例提供一种调整竞争窗口的装置、方法、网络设备、终端及网络系统，能够提高网络系统中的终端竞争资源的公平性。
为达到上述目的，本发明实施例采用如下技术方案：
第一方面，本发明实施例提供一种调整竞争窗口的装置，所述装置包括：
获取模块，用于获取终端信息，所述终端信息包括终端数量或终端单 位时间内竞争失败的次数；
确定模块，用于当所述终端信息超过预设门限值时，根据所述获取模块获取的终端信息确定所述终端竞争窗口的调整方案，所述调整方案用于所述终端根据所述调整方案，调整所述终端的竞争窗口。
结合第一方面，在第一方面的第一种可能的实现方式中，所述确定模块具体用于：
确定所述终端竞争窗口的调整方案为所有终端按照第一预设关系调大所述竞争窗口，所述第一预设关系包括所述终端数量和所述竞争窗口大小的匹配关系；或者用于确定所述终端竞争窗口的调整方案为所述所有终端按照所述第一预设关系调小所述竞争窗口，所述第一数量门限值大于或等于所述第二数量门限值。
结合第一方面，在第一方面的第二种可能的实现方式中，所述确定模块具体用于：
确定所述终端竞争窗口的调整方案为所有终端按照第二预设关系调大所述竞争窗口，所述第二预设关系包括所述终端单位时间内竞争失败的次数和所述竞争窗口大小的匹配关系；或者用于确定所述终端竞争窗口的调整方案为所述所有终端按照所述第二预设关系调小所述竞争窗口，所述第一次数门限值大于或等于所述第二次数门限值。
结合第一方面，在第一方面的第三种可能的实现方式中，所述装置还包括：
发送模块，用于通过广播方式向所有终端发送所述确定模块确定的所述调整方案。
第二方面，本发明实施例提供一种调整竞争窗口的方法，所述方法包括：
网络设备获取终端信息，所述终端信息包括终端数量或所述终端单位时间内竞争失败的次数；
当所述终端信息超过预设门限值时，所述网络设备根据所述终端信息确定所述终端竞争窗口的调整方案，所述调整方案用于所述终端根据所述调整方案，调整所述终端的竞争窗口。
结合第二方面，在第二方面的第一种可能的实现方式中，当所述终端信息为终端数量时，所述网络设备根据所述终端信息确定所述终端竞争窗口的调整方案，包括：
所述网络设备确定所述终端竞争窗口的调整方案为所有终端按照第一预设关系调大所述竞争窗口，所述第一预设关系包括所述终端数量和所述竞争窗口大小的匹配关系；或者，
所述网络设备确定所述终端竞争窗口的调整方案为所述所有终端按照所述第一预设关系调小所述竞争窗口，所述第一数量门限值大于或等于所述第二数量门限值。
结合第二方面，在第二方面的第二种可能的实现方式中，当所述终端信息为所述终端单位时间内竞争失败的次数时，所述网络设备根据所述终端信息确定所述终端竞争窗口的调整方案，包括：
所述网络设备确定所述终端竞争窗口的调整方案为所有终端按照第二预设关系调大所述竞争窗口，所述第二预设关系包括所述终端单位时间内竞争失败的次数和所述竞争窗口大小的匹配关系；或者，
所述网络设备确定所述终端竞争窗口的调整方案为所述所有终端按照所述第二预设关系调小所述竞争窗口，所述第一次数门限值大于或等于所述第二次数门限值。
结合第二方面，在第二方面的第三种可能的实现方式中，在所述网络设备根据所述终端信息确定所述终端竞争窗口的调整方案之后，所述方法还包括：
所述网络设备通过广播方式向所有终端发送所述调整方案。
第三方面，本发明实施例提供一种网络设备，所述网络设备设置有接收器、发送器、存储器和处理器；
所述存储器，用于存储包括程序指令的信息；
所述接收器，用于获取终端信息，所述终端信息包括终端数量或所述终端单位时间内竞争失败的次数；
所述处理器，用于当所述终端信息超过预设门限值时，所述网络设备根据所述终端信息确定所述终端竞争窗口的调整方案，所述调整方案用于 所述终端根据所述调整方案，调整所述终端的竞争窗口。
结合第三方面，在第三方面的第一种可能的实现方式中，当所述终端信息为所述终端数量时，所述处理器，具体用于：
确定所述终端竞争窗口的调整方案为所有终端按照第一预设关系调大所述竞争窗口，所述第一预设关系包括所述终端数量和所述竞争窗口大小的匹配关系；或者用于确定所述终端竞争窗口的调整方案为所述所有终端按照所述第一预设关系调小所述竞争窗口，所述第一数量门限值大于或等于所述第二数量门限值。
结合第三方面，在第三方面的第二种可能的实现方式中，当所述终端信息为所述终端单位时间内竞争失败的次数时，所述处理器，具体用于：
确定所述终端竞争窗口的调整方案为所有终端按照第二预设关系调大所述竞争窗口，所述第二预设关系包括所述终端单位时间内竞争失败的次数和所述竞争窗口大小的匹配关系；或者用于所述终端竞争窗口的调整方案为所述所有终端按照所述第二预设关系调小所述竞争窗口，所述第一次数门限值大于或等于所述第二次数门限值。
结合第三方面，在第三方面的第三种可能的实现方式中，所述发送器，具体用于：
通过广播方式向所有终端发送所述调整方案。
第四方面，本发明实施例提供一种终端，所述终端设置有接收器、发送器、存储器和处理器；
所述存储器，用于存储包括程序指令的信息；
所述发送器，用于发送终端信息，所述终端信息包括终端数量或所述终端单位时间内竞争失败的次数；
所述接收器，用于获取所述终端竞争窗口的调整方案；
所述处理器，用于根据所述调整方案，调整所述终端的竞争窗口。
第五方面，本发明实施例提供一种网络系统，所述网络系统包括第三方面中任意一项所述的网络设备和第四方面所述的终端。
本发明实施例提供的一种调整竞争窗口的装置、方法、网络设备、终端及网络系统，当网络设备获取的终端信息超过预设门限值时，网络设备 根据终端信息确定终端竞争窗口的调整方案，以便于终端根据调整方案，调整终端的竞争窗口。相比较于现有技术中由用户根据需要，单独调整某一个或多个终端的竞争窗口，本发明实施例可以通过网络设备获取终端信息，并根据终端信息确定调整方案，之后由终端根据调整方案，调整终端的竞争窗口，使每个终端信息超过预设门限值的终端均参与调整，以便于同时提高或者降低网络系统中所有终端获取资源的几率，从而提高网络系统中终端竞争资源的公平性。
附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例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它的附图。
图1为本发明实施例提供的一种具体应用场景下的结构示意图；
图2为本发明实施例提供的一种调整竞争窗口的方法流程图；
图3为本发明实施例提供的一种具体应用场景下数据传输的时间过程的示意图；
图4为本发明实施例提供的另一种调整竞争窗口的方法流程图；
图5为本发明实施例提供的另一种调整竞争窗口的方法流程图；
图6为本发明实施例提供的另一种调整竞争窗口的方法流程图；
图7为本发明实施例提供的一种调整竞争窗口的装置结构示意图；
图8为本发明实施例提供的一种调整竞争窗口的装置结构示意图；
图9为本发明实施例提供的一种网络设备的结构示意图；
图10为本发明实施例提供的一种终端的结构示意图；
图11为本发明实施例提供的一种网络系统的结构示意图。
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它实施例，都属于本发明保护的 范围。
本发明实施例可以用于一种网络系统，网络系统中至少包括：终端和网络设备，其中，网络设备用于为终端提供网络接入的接口，比如：为终端提供无线网络接入的接口的基站。如图1所示的网络系统中，终端A和终端B之间可以采用DSRC(Dedicated Short Range Communication，专用短程通信技术)接口或者其它的802.11接口进行数据传输；基站和终端A之间，或基站和终端B之间可以采用基站和LTE(Long Term Evolution，长期演进)终端之间的接口进行数据传输，比如：采用LTE-Uu接口进行数据传输。
本发明实施例提供一种调整竞争窗口的方法，该方法流程均由网络设备实现。如图2所示，所述方法包括：
101、网络设备获取终端信息。
其中，所述终端信息包括终端数量和终端单位时间内竞争失败的次数。当所述终端信息超过预设门限值时，执行步骤102，否则不需要确定终端的竞争窗的调整方案。
以网络设备是基站为例，基站可以周期性获取终端信息，比如：统计单位时间内，基站提供的网络所覆盖区域中的每个终端竞争失败的次数。终端上可以设置计数器，将计数器的初始值设置为0，当每个终端每次竞争失败时，可以将终端上的计数器所记录的终端竞争失败的次数加1，且在达到单位时间时，将计数器所记录的终端竞争失败的次数向基站发送，并将计数器清零；或者，基站提供的网络所覆盖区域中的每个终端每次竞争失败时，向基站上报竞争失败的结果，基站分别记录每个终端竞争失败的次数，在达到单位时间时，基站分别统计所记录的每个终端竞争失败的次数。
基站还可以实时获取终端信息，比如：实时获取基站提供的网络所覆盖区域中的终端的数量，基站可以通过广播的方式向基站提供的网络所覆盖区域中的每个终端发送消息，在每个终端接收到基站广播的消息之后，向基站发送响应消息，此时基站可以通过统计终端发送的响应消息的数量来确定当前基站提供的网络所覆盖区域中的终端的数量。
需要说明的是，在本发明实施例中，终端信息不仅可以包括终端的数量或终端单位时间内竞争失败的次数，还可以包括其他影响终端获取资源几率的参数。
102、所述网络设备根据所述终端信息确定所述终端竞争窗口的调整方案。
其中，所述调整方案用于所述终端根据所述调整方案，调整所述终端的竞争窗口。
在本发明实施例中，当终端数量超过预设数量门限值时，网络设备可以根据终端数量确定终端竞争窗口的调整方案；或者，当终端单位时间内竞争失败的次数超过预设次数门限值时，网络设备可以根据终端单位时间内竞争失败的次数确定终端竞争窗口的调整方案。需要说明的是，上述两种确定终端竞争窗口的调整方案的具体实现方式在后文提出。
如图3所示的第一时间轴和第二时间轴为根据CSMA/CA协议进行数据传输的时间过程，图3中的第一时间轴上的竞争窗口经过调大后，得到第二时间轴上的竞争窗口。其中，时间轴上信道忙碌的时间均为以点a为起点，以点b为终点的时间段ab；时间轴上延迟的帧间隔SIFS均为以点b为起点，以点c为终点的时间段bc；时间轴上延迟的帧间隔PIFS均为以点b为起点，以点d为终点的时间段bd；时间轴上延迟的帧间隔DIFS均为以点b为起点，以点e为终点的时间段be；第一时间轴上的竞争窗口为以点e为起点，以点f1为终点的时间段ef1，帧传输时间为以点f1为起点，以点g1为终点的时间段f1g1；第二时间轴上的竞争窗口为以点e为起点，以点f2为终点的时间段ef2，帧传输时间为以点f2为起点，以点g2为终点的时间段f2g2。其中，第一时间轴和第二时间轴上的帧传输时间相同，竞争窗口的大小不同，第二时间轴上的竞争窗口所占时间比第一时间轴上的竞争窗口所占时间多x，按照CSMA/CA协议进行数据传输的原理，相比较于如图3所示的第二时间轴上的数据传输的时间过程，第一时间轴上的数据传输的时间过程中，竞争窗口较小，导致终端数量较多时发生碰撞的几率较大；而第二时间轴上的数据传输的时间过程中，竞争窗口较大，使终端数量较多时发生碰撞的几率较低。
需要说明的是，调整竞争窗口的方式有多种，比如：按照指数函数的增大来调大竞争窗口，或是按照指数函数的减小来调小竞争窗口，或者按照根据不同应用场景预先设定的调整规则进行调整。
本发明实施例提供的一种调整竞争窗口的方法，当网络设备获取的终端信息超过预设门限值时，网络设备根据终端信息确定终端竞争窗口的调整方案，以便于终端根据调整方案，调整终端的竞争窗口。相比较于现有技术中由用户根据需要，单独调整某一个或多个终端的竞争窗口，本发明实施例可以通过网络设备获取终端信息，并根据终端信息确定调整方案，之后由终端根据调整方案，调整终端的竞争窗口，使每个终端信息超过预设门限值的终端均参与调整，以便于同时提高或者降低网络系统中所有终端获取资源的几率，从而提高网络系统中终端竞争资源的公平性。
由于当终端数量较多时，终端碰撞的几率较大，终端获取资源的几率较小；当终端数量较少时，终端碰撞的几率较小，终端获取资源的几率较大，因此，终端数量可以影响终端碰撞的几率，从而影响终端获取资源的几率。在本发明实施例的另一个实现方式中，终端数量可以作为考察终端获取资源的几率的参数，当所述终端信息为所述终端数量时，在如图2所示实现方式的基础上，步骤102所述网络设备根据所述终端信息确定所述终端竞争窗口的调整方案，可以具体实现为如图4所示的步骤1021或步骤1022：
1021、所述网络设备确定所述终端竞争窗口的调整方案为所有终端按照第一预设关系调大所述竞争窗口。
其中，所述第一预设关系包括所述终端数量和所述竞争窗口大小的匹配关系。需要说明的是，预设关系可以由用户根据不同应用场景预先设定，第一预设关系可以具体是用于表示不同数量的终端和竞争窗口大小的一对多的匹配关系、多对一的匹配关系，或一对一的匹配关系的列表。
1022、所述网络设备确定所述终端竞争窗口的调整方案为所述所有终端按照所述第一预设关系调小所述竞争窗口。
本发明实施例提供的一种调整竞争窗口的方法，当网络设备获取的终端数量超过预设门限值时，网络设备根据终端数量确定终端竞争窗口的调 整方案为所有终端按照第一预设关系调大或调小竞争窗口，以便于所有终端按照调整方案，调大或调小竞争窗口。相比较于现有技术中由用户根据需要，单独调整某一个或多个终端的竞争窗口，本发明实施例可以通过网络设备获取终端数量，并根据终端数量确定调整方案，之后由终端根据调整方案，调整终端的竞争窗口，使每个终端数量超过预设门限值的终端均参与调整，以便于同时提高或者降低网络系统中所有终端获取资源的几率，从而提高网络系统中终端竞争资源的公平性。
由于当终端单位时间内竞争失败的次数较多时，表示终端获取资源的几率较小；当终端单位时间内竞争失败的次数较少时，表示终端获取资源的几率较大，因此，终端单位时间内竞争失败的次数可以用来体现单位时间内终端获取资源的几率。在本发明实施例的另一个实现方式中，终端单位时间内竞争失败的次数可以作为考察终端获取资源的几率的参数。当所述终端信息为所述终端单位时间内竞争失败的次数时，在如图2所示实现方式的基础上，步骤102所述网络设备根据所述终端信息确定所述终端竞争窗口的调整方案，可以具体实现为如图5所示的步骤1023或步骤1024：
1023、所述网络设备确定所述终端竞争窗口的调整方案为所有终端按照第二预设关系调大所述竞争窗口。
其中，所述第二预设关系包括所述终端单位时间内竞争失败的次数和所述竞争窗口大小的匹配关系。需要说明的是，第二预设关系可以具体是用于表示终端单位时间内不同的竞争失败的次数和竞争窗口大小的一对多的匹配关系、多对一的匹配关系，或一对一的匹配关系的列表。
终端在竞争失败后可以和基站建立连接，并请求基站将需要传输的数据转发给其他终端，或请求基站分配专用的资源供终端向其他终端发送数据，基站可以通过统计单位时间内接收到终端发送的请求的次数来确定终端单位时间内竞争失败的次数。
需要说明的是，单位时间的起始时刻和终止时刻可以由用户根据不同应用场景预先设定；竞争失败的原因在本发明实施例中，不进行具体的限定，可以包括终端在竞争资源的过程中发生碰撞的情况。
1024、所述网络设备确定所述终端竞争窗口的调整方案为所述所有终 端按照所述第二预设关系调小所述竞争窗口。
本发明实施例提供的一种调整竞争窗口的方法，当网络设备获取的终端单位时间内竞争失败的次数超过预设门限值时，网络设备根据终端单位时间内竞争失败的次数确定终端竞争窗口的调整方案为所有终端按照第二预设关系调大或调小竞争窗口，以便于所有终端按照调整方案，调大或调小竞争窗口。相比较于现有技术中由用户根据需要，单独调整某一个或多个终端的竞争窗口，本发明实施例可以通过网络设备获取终端单位时间内竞争失败的次数，并根据终端单位时间内竞争失败的次数确定调整方案，之后由终端根据调整方案，调整终端的竞争窗口，使每个终端单位时间内竞争失败的次数超过预设门限值的终端均参与调整，以便于同时提高或者降低网络系统中所有终端获取资源的几率，从而提高网络系统中终端竞争资源的公平性。
为了保证网络系统中的所有终端都可以接收到网络设备发送的调整方案，在本发明实施例的另一个实现方式中，网络设备可以通过广播方式向所有终端发送调整方案。因此，在如图2所示实现方式的基础上，还可以实现为如图6所示的实现方式。也就是在执行完毕步骤102之后，还可以执行步骤103：
103、所述网络设备通过广播方式向所有终端发送所述调整方案。
在本发明实施例中，当网络设备为基站时，基站可以通过RRC(Radio Resource Control，无线资源控制)信令获取终端信息，在确定调整方案之后，通过发送广播消息，比如：MBMS(Multimedia Broadcast Multicast Service，多媒体广播组播业务)消息或者系统消息(System Information Block，SIB)等方式，将调整方案发送给基站提供的网络所覆盖区域中的每个所有终端，之后各个每个终端根据接收的调整方案所携带的和竞争窗口相关的参数来调整竞争窗口。
本发明实施例提供的一种调整竞争窗口的方法，当网络设备获取的终端信息超过预设门限值时，网络设备根据终端信息确定终端竞争窗口的调整方案，并通过广播方式向所有终端发送，以便于终端根据调整方案，调整终端的竞争窗口。相比较于现有技术中由用户根据需要，单独调整某一 个或多个终端的竞争窗口，本发明实施例可以通过网络设备获取终端信息，并根据终端信息确定调整方案，之后通过广播方式向所有终端发送，由终端根据调整方案，调整终端的竞争窗口，使所有终端均可以接收到网络设备发送的调整方案，同时，每个终端信息超过预设门限值的终端均参与调整，以便于同时提高或者降低网络系统中所有终端获取资源的几率，从而提高网络系统中终端竞争资源的公平性。
本发明实施例提供一种调整竞争窗口的装置20，如图7所示，图7所示的装置20用于执行图2所示的方法，所述装置20包括：
获取模块21，用于获取终端信息，所述终端信息包括终端数量或终端单位时间内竞争失败的次数。
确定模块22，用于当所述终端信息超过预设门限值时，根据所述获取模块21获取的终端信息确定所述终端竞争窗口的调整方案，所述调整方案用于所述终端根据所述调整方案，调整所述终端的竞争窗口。
在本发明实施例的另一个实现方式中，图7所示的装置20用于执行图4所示的方法，所述确定模块22具体用于：
确定所述终端竞争窗口的调整方案为所有终端按照第一预设关系调大所述竞争窗口，所述第一预设关系包括所述终端数量和所述竞争窗口大小的匹配关系；或者用于确定所述终端竞争窗口的调整方案为所述所有终端按照所述第一预设关系调小所述竞争窗口。
在本发明实施例的另一个实现方式中，图7所示的装置20用于执行图5所示的方法，所述确定模块22具体用于：
确定所述终端竞争窗口的调整方案为所有终端按照第二预设关系调大所述竞争窗口，所述第二预设关系包括所述终端单位时间内竞争失败的次数和所述竞争窗口大小的匹配关系；或者用于确定所述终端竞争窗口的调整方案为所述所有终端按照所述第二预设关系调小所述竞争窗口。
在本发明实施例的另一个实现方式中，如图8所示，图8所示的装置20用于执行图6所示的方法，所述装置20还包括：
发送模块23，用于通过广播方式向所有终端发送所述确定模块22确定的所述调整方案。
本发明实施例提供的一种调整竞争窗口的装置，当网络设备获取的终端信息超过预设门限值时，网络设备根据终端信息确定终端竞争窗口的调整方案，以便于终端根据调整方案，调整终端的竞争窗口。相比较于现有技术中由用户根据需要，单独调整某一个或多个终端的竞争窗口，本发明实施例可以通过网络设备获取终端信息，并根据终端信息确定调整方案，之后由终端根据调整方案，调整终端的竞争窗口，使每个终端信息超过预设门限值的终端均参与调整，以便于同时提高或者降低网络系统中所有终端获取资源的几率，从而提高网络系统中终端竞争资源的公平性。
本发明实施例提供一种网络设备30，如图9所示，所述网络设备30设置有接收器31、发送器32、存储器33、处理器34和总线35，其中，接收器31、发送器32、存储器33、处理器34通过总线35通信连接。
存储器33可以是只读存储器(Read Only Memory，ROM)，静态存储设备，动态存储设备或者随机存取存储器(Random Access Memory，RAM)。存储器33可以存储操作系统和其他应用程序。在通过软件或者固件来实现本发明实施例提供的技术方案时，用于实现本发明实施例提供的技术方案的程序代码保存在存储器33中，并由处理器34来执行。
接收器31和发送器32用于网络设备30与终端或通信网络(例如但不限于以太网，无线接入网(Radio Access Network，RAN)，无线局域网(Wireless Local Area Network，WLAN)等)之间的通信。
处理器34可以采用通用的中央处理器(Central Processing Unit，CPU)，微处理器，应用专用集成电路(Application Specific Integrated Circuit，ASIC)，或者一个或多个集成电路，用于执行相关程序，以实现本发明实施例所提供的技术方案。
总线35可包括一通路，在网络设备30中的各个部件(例如接收器31、发送器32、存储器33、处理器34)之间传送信息。
应注意，尽管图9所示的硬件仅仅示出了网络设备30的存储器33、接收器31和处理器34以及总线35，但是在具体实现过程中，本领域的技术人员应当明白，该终端还包含实现正常运行所必须的其他器件。同时，根据具体需要，还可包含实现其他功能的硬件器件。
在本发明实施例中，所述存储器33，用于存储包括程序指令的信息。
所述接收器31，用于获取终端信息，所述终端信息包括终端数量或终端单位时间内竞争失败的次数。
所述处理器34，用于当所述终端信息超过预设门限值时，所述网络设备根据所述终端信息确定所述终端竞争窗口的调整方案，所述调整方案用于所述终端根据所述调整方案，调整所述终端的竞争窗口。
在本发明实施例的另一个实现方式中，当所述终端信息为终端数量时，所述处理器34，具体用于：
确定所述终端竞争窗口的调整方案为所有终端按照第一预设关系调大所述竞争窗口，所述第一预设关系包括所述终端数量和所述竞争窗口大小的匹配关系；或者用于确定所述终端竞争窗口的调整方案为所述所有终端按照所述第一预设关系调小所述竞争窗口。
在本发明实施例的另一个实现方式中，当所述终端信息为所述终端单位时间内竞争失败的次数时，所述处理器34，具体用于：
确定所述终端竞争窗口的调整方案为所有终端按照第二预设关系调大所述竞争窗口，所述第二预设关系包括所述终端单位时间内竞争失败的次数和所述竞争窗口大小的匹配关系；或者用于所述终端竞争窗口的调整方案为所述所有终端按照所述第二预设关系调小所述竞争窗口。
在本发明实施例的另一个实现方式中，所述发送器32，具体用于：
通过广播方式向所有终端发送所述调整方案。
本发明实施例提供的一种网络设备，当获取的终端信息超过预设门限值时，根据终端信息确定终端竞争窗口的调整方案，以便于终端根据调整方案，调整终端的竞争窗口。相比较于现有技术中由用户根据需要，单独调整某一个或多个终端的竞争窗口，本发明实施例可以通过网络设备获取终端信息，并根据终端信息确定调整方案，之后由终端根据调整方案，调整终端的竞争窗口，使每个终端信息超过预设门限值的终端均参与调整，以便于同时提高或者降低网络系统中所有终端获取资源的几率，从而提高网络系统中终端竞争资源的公平性。
本发明实施例提供一种终端40，如图10所示，所述终端40设置有 接收器41、发送器42、存储器43、处理器44和总线45，其中，接收器41、发送器42、存储器43、处理器44通过总线45通信连接。
存储器43可以是只读存储器(Read Only Memory，ROM)，静态存储设备，动态存储设备或者随机存取存储器(Random Access Memory，RAM)。存储器43可以存储操作系统和其他应用程序。在通过软件或者固件来实现本发明实施例提供的技术方案时，用于实现本发明实施例提供的技术方案的程序代码保存在存储器43中，并由处理器44来执行。
接收器41和发送器42用于终端40与网络设备或通信网络(例如但不限于以太网，无线接入网(Radio Access Network，RAN)，无线局域网(Wireless Local Area Network，WLAN)等)之间的通信。
处理器44可以采用通用的中央处理器(Central Processing Unit，CPU)，微处理器，应用专用集成电路(Application Specific Integrated Circuit，ASIC)，或者一个或多个集成电路，用于执行相关程序，以实现本发明实施例所提供的技术方案。
总线45可包括一通路，在终端40中的各个部件(例如接收器41、发送器42、存储器43、处理器44)之间传送信息。
应注意，尽管图9所示的硬件仅仅示出了终端40的存储器43、接收器41和处理器44以及总线35，但是在具体实现过程中，本领域的技术人员应当明白，该终端还包含实现正常运行所必须的其他器件。同时，根据具体需要，还可包含实现其他功能的硬件器件。
在本发明实施例中，所述存储器43，用于存储包括程序指令的信息。
所述发送器41，用于发送终端信息，所述终端信息包括终端数量或所述终端单位时间内竞争失败的次数。
所述接收器42，用于获取所述终端竞争窗口的调整方案。
所述处理器44，用于根据所述调整方案，调整所述终端的竞争窗口。
本发明实施例提供的一种终端，当终端接收到网络设备根据终端信息确定的调整方案之后，根据调整方案，调整终端的竞争窗口。相比较于现有技术中由用户根据需要，单独调整某一个或多个终端的竞争窗口，本发明实施例可以通过网络设备获取终端信息，并根据终端信息确定调整方 案，之后由终端根据调整方案，调整终端的竞争窗口，使每个终端信息超过预设门限值的终端均参与调整，以便于同时提高或者降低网络系统中所有终端获取资源的几率，从而提高网络系统中终端竞争资源的公平性。
本发明实施例提供一种网络系统50，如图11所示，所述网络系统50包括任意一项所述的网络设备30和所述的终端40。
本发明实施例提供的一种网络系统，当网络设备获取的终端信息超过预设门限值时，网络设备根据终端信息确定终端竞争窗口的调整方案，以便于终端根据调整方案，调整终端的竞争窗口。相比较于现有技术中由用户根据需要，单独调整某一个或多个终端的竞争窗口，本发明实施例可以通过网络设备获取终端信息，并根据终端信息确定调整方案，之后由终端根据调整方案，调整终端的竞争窗口，使每个终端信息超过预设门限值的终端均参与调整，以便于同时提高或者降低网络系统中所有终端获取资源的几率，从而提高网络系统中终端竞争资源的公平性。
本说明书中的各个实施例均采用递进的方式描述，各个实施例之间相同相似的部分互相参见即可，每个实施例重点说明的都是与其他实施例的不同之处。尤其，对于系统实施例而言，由于其基本相似于方法实施例，所以描述得比较简单，相关之处参见方法实施例的部分说明即可。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到的变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应该以权利要求的保护范围为准。

Claims (14)

  1. 一种调整竞争窗口的装置，其特征在于，所述装置包括：
    获取模块，用于获取终端信息，所述终端信息包括终端数量或终端单位时间内竞争失败的次数；
    确定模块，用于当所述终端信息超过预设门限值时，根据所述获取模块获取的终端信息确定所述终端竞争窗口的调整方案，所述调整方案用于所述终端根据所述调整方案，调整所述终端的竞争窗口。
  2. 根据权利要求1所述的装置，其特征在于，所述确定模块具体用于：
    确定所述终端竞争窗口的调整方案为所有终端按照第一预设关系调大所述竞争窗口，所述第一预设关系包括所述终端数量和所述竞争窗口大小的匹配关系；或者用于确定所述终端竞争窗口的调整方案为所述所有终端按照所述第一预设关系调小所述竞争窗口。
  3. 根据权利要求1所述的装置，其特征在于，所述确定模块具体用于：
    确定所述终端竞争窗口的调整方案为所有终端按照第二预设关系调大所述竞争窗口，所述第二预设关系包括所述终端单位时间内竞争失败的次数和所述竞争窗口大小的匹配关系；或者用于确定所述终端竞争窗口的调整方案为所述所有终端按照所述第二预设关系调小所述竞争窗口。
  4. 根据权利要求1所述的装置，其特征在于，所述装置还包括：
    发送模块，用于通过广播方式向所有终端发送所述确定模块确定的所述调整方案。
  5. 一种调整竞争窗口的方法，其特征在于，所述方法包括：
    网络设备获取终端信息，所述终端信息包括终端数量或所述终端单位时间内竞争失败的次数；
    当所述终端信息超过预设门限值时，所述网络设备根据所述终端信息确定所述终端竞争窗口的调整方案，所述调整方案用于所述终端根据所述调整方案，调整所述终端的竞争窗口。
  6. 根据权利要求5所述的方法，其特征在于，当所述终端信息为终端数量时，所述网络设备根据所述终端信息确定所述终端竞争窗口的调整方案，包括：
    所述网络设备确定所述终端竞争窗口的调整方案为所有终端按照第一预设关系调大所述竞争窗口，所述第一预设关系包括所述终端数量和所述竞争窗口大小的匹配关系；或者，
    所述网络设备确定所述终端竞争窗口的调整方案为所述所有终端按照所述第一预设关系调小所述竞争窗口。
  7. 根据权利要求5所述的方法，其特征在于，当所述终端信息为所述终端单位时间内竞争失败的次数时，所述网络设备根据所述终端信息确定所述终端竞争窗口的调整方案，包括：
    所述网络设备确定所述终端竞争窗口的调整方案为所有终端按照第二预设关系调大所述竞争窗口，所述第二预设关系包括所述终端单位时间内竞争失败的次数和所述竞争窗口大小的匹配关系；或者，
    所述网络设备确定所述终端竞争窗口的调整方案为所述所有终端按照所述第二预设关系调小所述竞争窗口。
  8. 根据权利要求5所述的方法，其特征在于，在所述网络设备根据所述终端信息确定所述终端竞争窗口的调整方案之后，所述方法还包括：
    所述网络设备通过广播方式向所有终端发送所述调整方案。
  9. 一种网络设备，其特征在于，所述网络设备设置有接收器、发送器、存储器和处理器；
    所述存储器，用于存储包括程序指令的信息；
    所述接收器，用于获取终端信息，所述终端信息包括终端数量或所述终端单位时间内竞争失败的次数；
    所述处理器，用于当所述终端信息超过预设门限值时，所述网络设备根据所述终端信息确定所述终端竞争窗口的调整方案，所述调整方案用于所述终端根据所述调整方案，调整所述终端的竞争窗口。
  10. 根据权利要求9所述的网络设备，其特征在于，当所述终端信息为所述终端数量时，所述处理器，具体用于：
    确定所述终端竞争窗口的调整方案为所有终端按照第一预设关系调大所述竞争窗口，所述第一预设关系包括所述终端数量和所述竞争窗口大小的匹配关系；或者用于确定所述终端竞争窗口的调整方案为所述所有终端 按照所述第一预设关系调小所述竞争窗口。
  11. 根据权利要求9所述的网络设备，其特征在于，当所述终端信息为所述终端单位时间内竞争失败的次数时，所述处理器，具体用于：
    确定所述终端竞争窗口的调整方案为所有终端按照第二预设关系调大所述竞争窗口，所述第二预设关系包括所述终端单位时间内竞争失败的次数和所述竞争窗口大小的匹配关系；或者用于所述终端竞争窗口的调整方案为所述所有终端按照所述第二预设关系调小所述竞争窗口。
  12. 根据权利要求9所述的网络设备，其特征在于，所述发送器，具体用于：
    通过广播方式向所有终端发送所述调整方案。
  13. 一种终端，其特征在于，所述终端设置有接收器、发送器、存储器和处理器；
    所述存储器，用于存储包括程序指令的信息；
    所述发送器，用于发送终端信息，所述终端信息包括终端数量或所述终端单位时间内竞争失败的次数；
    所述接收器，用于获取所述终端竞争窗口的调整方案；
    所述处理器，用于根据所述调整方案，调整所述终端的竞争窗口。
  14. 一种网络系统，其特征在于，所述网络系统包括权利要求9至12中任意一项所述的网络设备和权利要求13所述的终端。
PCT/CN2015/078973 2015-05-14 2015-05-14 一种调整竞争窗口的装置、方法、网络设备、终端及网络系统 WO2016179837A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201580071593.3A CN107113872B (zh) 2015-05-14 2015-05-14 一种调整竞争窗口的装置、方法、网络设备、终端及网络系统
PCT/CN2015/078973 WO2016179837A1 (zh) 2015-05-14 2015-05-14 一种调整竞争窗口的装置、方法、网络设备、终端及网络系统

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2015/078973 WO2016179837A1 (zh) 2015-05-14 2015-05-14 一种调整竞争窗口的装置、方法、网络设备、终端及网络系统

Publications (1)

Publication Number Publication Date
WO2016179837A1 true WO2016179837A1 (zh) 2016-11-17

Family

ID=57247672

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2015/078973 WO2016179837A1 (zh) 2015-05-14 2015-05-14 一种调整竞争窗口的装置、方法、网络设备、终端及网络系统

Country Status (2)

Country Link
CN (1) CN107113872B (zh)
WO (1) WO2016179837A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109151958A (zh) * 2017-06-28 2019-01-04 珠海市魅族科技有限公司 无线局域网的通信方法及通信装置、通信设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101730259A (zh) * 2008-10-23 2010-06-09 株式会社泛泰 在基于mu-mimo的wlan系统中确定竞争窗口尺寸的装置和方法
CN101998662A (zh) * 2009-08-18 2011-03-30 英特尔公司 调整用于无线传送的竞争窗口的装置、系统和方法
CN102387592A (zh) * 2010-09-02 2012-03-21 中兴通讯股份有限公司 一种资源竞争方法和站点
US20140112153A1 (en) * 2012-10-24 2014-04-24 Electronics And Telecommunications Research Institute Method and device for managing contention window based on transmission error detection

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101730259A (zh) * 2008-10-23 2010-06-09 株式会社泛泰 在基于mu-mimo的wlan系统中确定竞争窗口尺寸的装置和方法
CN101998662A (zh) * 2009-08-18 2011-03-30 英特尔公司 调整用于无线传送的竞争窗口的装置、系统和方法
CN102387592A (zh) * 2010-09-02 2012-03-21 中兴通讯股份有限公司 一种资源竞争方法和站点
US20140112153A1 (en) * 2012-10-24 2014-04-24 Electronics And Telecommunications Research Institute Method and device for managing contention window based on transmission error detection

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109151958A (zh) * 2017-06-28 2019-01-04 珠海市魅族科技有限公司 无线局域网的通信方法及通信装置、通信设备
CN109151958B (zh) * 2017-06-28 2022-03-29 珠海市魅族科技有限公司 无线局域网的通信方法及通信装置、通信设备

Also Published As

Publication number Publication date
CN107113872B (zh) 2020-11-10
CN107113872A (zh) 2017-08-29

Similar Documents

Publication Publication Date Title
US11071168B2 (en) Multi-station access method, apparatus, and system
US20210185645A1 (en) Method and Apparatus for Transmitting Information
KR101617321B1 (ko) 와이파이 네트워크에서 차별화된 연결 서비스 제공을 위한 시스템 및 방법
WO2018171376A1 (zh) 一种随机接入回退后的随机接入及指示方法、装置
US9635583B2 (en) Method, apparatus and network system for controlling network congestion
EP3035767B1 (en) Method, apparatus and system for channel access
US11064540B2 (en) Data sending method, resource measurement method, apparatus, and device
EP3490301B1 (en) Multicast data transmission response methods and devices
JP2013131834A (ja) 無線通信装置および無線通信方法
US20200236597A1 (en) Transmission opportunity control method and apparatus
US11445503B2 (en) Data transmission method and device for multiple radio frequency systems, storage medium and terminal
WO2020248133A1 (zh) 信道接入配置方法、装置、设备及存储介质
CN113825189A (zh) 一种切换控制方法及通信装置
CN106332153B (zh) 一种wlan中的带宽控制方法及装置
WO2016179837A1 (zh) 一种调整竞争窗口的装置、方法、网络设备、终端及网络系统
US9584433B2 (en) Data transmission method and apparatus
KR101984678B1 (ko) 자원 재사용 기구, 사용자 장비, 그리고 방법
JP6603389B2 (ja) リソース測定方法、データ送信装置、及びプログラム
WO2016145662A1 (zh) 上行多用户接入方法和装置
US10841951B2 (en) Communications device and methods therein for providing an improved channel access procedure
CN106804061B (zh) 一种基于竞争式mac的链路构造方法及装置
CN106550343B (zh) 端到端通信站点发现方法、站点及接入点
WO2024021859A1 (zh) 数据传输方法、装置、存储介质及程序产品
CN107820264B (zh) 一种确定退避时间的方法及装置
WO2015096062A1 (zh) 共享频谱方法和装置

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: 15891540

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15891540

Country of ref document: EP

Kind code of ref document: A1