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RTS/CTS starting method and device

A technology of mechanism and activation strategy, applied in the field of communication, can solve the problems of difficult industrial promotion and complex implementation, and achieve the effect of avoiding the decline of channel utilization, improving rationality and ensuring accuracy.

Active Publication Date: 2014-07-09
CHINA MOBILE COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this solution needs to modify the existing WLAN protocol, and requires both the network side and the terminal side to jointly modify the existing protocol stack, which is complicated to implement and difficult to promote in the industry

Method used

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  • RTS/CTS starting method and device
  • RTS/CTS starting method and device
  • RTS/CTS starting method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Embodiment 1 of the present invention provides a method for starting the RTS / CTS mechanism, and the steps of the method can be as follows figure 1 shown, including:

[0035] Step 101. Determine the service type of the message to be sent.

[0036] In this embodiment, multiple RTS / CTS mechanism activation levels can be set. For each startup level, different RTS / CTS mechanism startup strategies can be defined. And can establish the corresponding relationship between the service type and the activation level. For example, the corresponding relationship shown in Table 1 can be established.

[0037]

[0038] Table 1

[0039] As shown in Table 1, the activation level can be represented by a number other than 0, and a larger number can be set to indicate a higher activation level. For example, assuming that 4 activation levels are set, they can be represented by 1, 2, 3 and 4 respectively, and the activation levels 4>3>2>1. And as shown in Table 1, the higher the activ...

Embodiment 2

[0066] Embodiment 2 provides a method for starting the RTS / CTS mechanism, and the steps of the method can be as follows figure 2 shown, including:

[0067] Step 201. Determine the service type of the message to be sent.

[0068] Assuming that the message to be sent is AC_VO, in this step, according to the corresponding relationship shown in Table 2, the service type 2 can be determined.

[0069] Step 202, determine a first startup level.

[0070] According to the corresponding relationship shown in Table 2, in this step, it can be determined that the first activation level is activation level 1.

[0071] Step 203, determining a second activation level.

[0072] Assuming that the activation level selected by default when the terminal is turned on is activation level 1, then in this step, if the second activation level has not been adjusted, it can be determined that the second activation level is 1.

[0073] Step 204, determine the starting strategy.

[0074] Since the se...

Embodiment 3

[0087] Embodiment 3 of the present invention provides a device for starting the RTS / CTS mechanism. The structure of the device can be as follows Figure 4 shown, including:

[0088] The first determination module 11 is used to determine the service type of the message to be sent; the second determination module 12 is used to determine the first start-up level corresponding to the service type of the message to be sent according to the correspondence between the service type and the start-up level; the third The determination module 13 is used to determine the start-up strategy corresponding to the first start-up level according to the corresponding relationship between the start-up level and the start-up strategy; the start-up module 14 is used to start the RTS / CTS mechanism according to the start-up strategy.

[0089] The device also includes a fourth determination module 15:

[0090] The fourth determination module 15 is used to determine the second activation level before ...

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Abstract

The embodiment of the invention provides an RTS / CTS starting method and device. The RTS / CTS starting level can be determined according to the service type of a message to be sent, and an RTS / CTS is started according to a starting strategy corresponding to the RTS / CTS starting level. Therefore, according to messages to be sent and of different service types, different starting strategies can be used for starting the RTS / CTS, the reasonability of the strategies for starting the RTS / CTS is improved, the accuracy of the time for starting the RTS / CTS is guaranteed, it is guaranteed that the message collision probability is effectively reduced, the channel utilization rate is increased, control signals are also reduced, and the situation that the channel utilization rate declines is avoided. Meanwhile, an existing WLAN protocol does not need to be modified, an existing protocol stack does not need to be modified by a network side and a terminal side together, and implementation complexity can further be lowered.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and device for starting a request to send / clear to send (RTS / CTS, Request To Send / Clear To Send) mechanism. Background technique [0002] Since the wireless local area network (WLAN) adopts the mechanism of random contention for the channel, when the number of terminals connected to the access point is large, message collisions are likely to occur when the terminals randomly compete for the channel. In order to reduce the probability of message collisions in the random channel requisition process of WLAN terminals, the Institute of Electrical and Electronics Engineers (IEEE) defines the RTS / CTS mechanism. [0003] The RTS / CTS mechanism requires the terminal to send an RTS message to apply for channel usage authority and duration before sending the message; after receiving the message, the access point assigns the channel usage authority and duration to the terminal acco...

Claims

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Application Information

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IPC IPC(8): H04W72/14H04W84/12
Inventor 陈健捷王小旭郑巍
Owner CHINA MOBILE COMM GRP CO LTD
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