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A node device, system, method for sending data, and method for receiving data

A node device, a technology for sending data, applied in the field of communication, can solve the problems of reducing the probability of sending CTS frames, deteriorating the quality of service of the source node, and low probability of the channel being idle.

Active Publication Date: 2019-09-20
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since the duration of a SIFS is about 10 microseconds, the monitoring time is very short, so the probability of detecting that the channel is idle is relatively low, which reduces the probability of sending CTS frames, resulting in the degradation of the service quality of the source node

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  • A node device, system, method for sending data, and method for receiving data
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  • A node device, system, method for sending data, and method for receiving data

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Embodiment Construction

[0112] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0113] In the existing technology, such as figure 1 As shown, node 0 serves UE1, node 1 serves UE1 and UE2, and node 0 and node 2 are adjacent nodes to each other. Node 0 monitors whether the channel is occupied by node 2 before sending data to UE1. If the channel is not occupied by node 2, node 0 can send data to UE1 on the channel. However, node 0 and node 1 are far away from each other. At this time, node 0 cannot hear node 1 sending data to UE1 on the channel,...

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Abstract

Disclosed are a node device, system, data transmission method and data receiving method. The device comprises: a transmission module, for sending a requesting to send (RTS) frame to a second node on a channel; a receiving module, for receiving from the second node a clearing to send (CTS) frame within a preset first time interval after the transmission module transmits the RTS frame, the first time interval being greater than one short inter-frame spacing (SIFS) time period; and a determination module, for determining a time interval indicated by a first silence time window included in the CTS frame received by the receiving module. The transmission module is further used to transmit data to the second node on the channel within the time interval indicated by the first silence time window included in the CTS and determined by the determination module. The present invention increases the probability of monitoring an idle channel.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a node device, a system, a method for sending data and a method for receiving data. Background technique [0002] With the increasing shortage of spectrum resources, the service capability of the long-term evolution (LTE, Long Term Evolution) system based on the licensed spectrum is also limited. promote. However, today's Wireless Fidelity (WiFi, Wireless Fidelity) network technology has also begun to use a large number of unlicensed spectrum to improve its service capabilities, and there is no ideal network planning between U-LTE and WiFi, so that the multiple network nodes of both parties Easy to be a neighboring node. If two adjacent nodes transmit data at the same time, interference will be caused to each other, so that any node cannot serve its own user equipment (UE, User Experience). [0003] Therefore, the coexistence problem of long-term evolution U-LTE...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W74/08H04W16/10
CPCH04W16/10H04W74/08
Inventor 官磊马莎杨美英
Owner HUAWEI TECH CO LTD
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