A method for direct communication between users in ultra-dense networks

Abstract

The invention relates to a direct communication method among users of a super dense network. According to the method, the data including the address information of a target user B is sent by a sending user A to an associated AP; after the data is received by the AP, the user address information stored in BSS is matched with the address information of the target user B of the received data, if matching succeeds, the data is sent to the target user B; if matching fails, the data is forwarded by the AP carrying the data of the sending user A to a surrounding AP having direct communication capability, and an address matching method of the previous steps is continuously utilized for matching, if matching does not succeeds within the set time, the matching failure information is fed back to an upper level AP level by level till the matching failure information is fed back to the sending user A, and the matching failure data is further dropped. Through the method, direct communication among the users can be realized with no need for utilizing a macro site for forwarding.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a method for direct communication between users in an ultra-dense network. Background technique [0002] In a wireless local area network, a base station is also called an access point (AP, access point), and a user is equivalent to a working station (STA, station). In an ultra-dense network, many small cells are distributed. If a user in a small cell wants to communicate with a user in another small cell, when the distance between the two users is relatively close, they can communicate directly through technologies such as Bluetooth; It cannot communicate directly, but must use the forwarding of the macro base station (MBS, MacroBase Station) to transmit the data of one user to another user. [0003] Scenario 1: When two close-distance users in an ultra-dense network communicate with each other, they can communicate directly with technologies such as Bluetooth, ultra-wideba...

AI Technical Summary

Problems solved by technology

[0003] Scenario 1: When two close-distance users in an ultra-dense network communicate with each other, they can communicate directly with technologies such as Bluetooth, ultra-wideband, ZigBee, and Wi-Fi, but these technologies belong to short-distance wireless communication. technology, the distance it can reach is from a few meters to tens of meters, so the communication distance is limited, and it cannot communicate when two users are far apart

When two far-distance users communicate with each other in an ultra-dense network, due to the distance limitation, the macro base station must be used for forwarding, and there is a large-scale fading between the user and the macro base station, which makes the user end data in transmission There will be losses in the process, so the data transmitted from one user to another has more interference

At the same time, due to the existence of forwarding, this will also increase additional forwarding overhead and increase the bit error rate, thereby reducing the throughput of the system

[0004] So far, in an ultra-dense network, users who are close to each other can only communicate through short-range wireless communication technology, while users who are farther away cannot communicate directly, and there is no effective solution to enable direct communication

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