Method, device and base station for realizing QoS of user

Abstract

The invention discloses a method, a device and a base station for realizing QoS of a user, and relates to the technical fields of wireless mobile communication and satellite communication. The methodcomprises the following steps of sorting multiple service messages of the same user to obtain a plurality of service type messages; matching a message enqueue strategy for each obtained service type message; and carrying out message scheduling on the corresponding service type message according to the message enqueue strategy matched for each service type message. Different processing modes are adopted for different message types, data of a plurality of users under a slave station is mapped to a small amount of Buffers with different priorities fairly, the calculation amount and the BSR signaling cost are reduced by more than 75%, and the more the number of users is, the more obvious the performance improvement effect is.

Description

technical field [0001] The present invention relates to the technical field of wireless mobile communication, in particular to a method, device and base station for realizing user QoS (Quality of Service, quality of service). Background technique [0002] In the satellite communication system, DVB-S2 (Digital Video Broadcasting, digital broadcast standard protocol) is used in the forward direction, and the communication master station realizes forward service scheduling of the terminal by controlling the content of the downlink broadcast frame; DVB-RCS2 (Digital Video Broadcasting- Return Channel Satellite, protocol satellite return channel system) standard protocol, MF-TDMA (Multi frequency-Time Division Multiple Access, multi-frequency point time division transmission), reverse bandwidth resources apply to the main station of the communication system through the terminal, and then the main station Centralized scheduling allocates business time slot resources. Specifically,...

AI Technical Summary

Problems solved by technology

Since one user corresponds to one buffer, the amount of scheduling calculation is huge, and it may not even be possible

Taking 45M downlink bandwidth as an example, the frame length is as short as 290us. If there are 10,000 users, that is, 10,000 buffers will complete the sorting, scheduling and resource allocation within 290us (signaling and voice are also excluded here), and there are great difficulties in implementation;

[0006] 2. Satellite bandwidth is limited, and flow control issues must be faced

[0008] 1. There are multiple users under a single slave station, and it is difficult to guarantee fairness among users

User data directly applies for BSR, the air interface resources may be occupied by a small number of users with the same priority and large data volume, and the rate of other users cannot be guaranteed;

[0009] 2. Air interface resources are precious, and the proportion of resource application expenses needs to be controlled

Each user has a Buffer. When the number of users is large, the BSR signaling structure increases with the number of users, increasing the consumption of air interface bandwidth resources;

[0010] 3. Long link delay

Taking 2M bandwidth and 20ms frame length as an example, the reverse minimum rate is about 600kbps, and spread spectrum has not been considered. Taking the guaranteed rate of 256kbps for a single user as an example, the air interface cannot satisfy the use of more than 3 users under a single slave station, especially for network applications. Burst traffic is the mainstay, and when the number of users with the same priority increases, some users' Internet access requests may not be transmitted to the core network within a few seconds;

[0011] 4. The computing pressure of the master station is high

[0012] To sum up, if the satellite communication system adopts the conventional scheduling method to achieve user QoS, it not only requires super high system computing power, but also needs to waste a lot of air interface bandwidth resources to transmit signaling related to resource applications.

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