Uplink frequency selection scheduling method and device thereof

A technology of frequency selection scheduling and scheduling priority, applied in the field of communication, can solve the problems of unable to reflect narrowband interference, unable to solve different system interference, unable to suppress narrowband interference of different systems, etc., to achieve the effect of improving uplink performance

Active Publication Date: 2014-09-03
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the Signal to Interference plus Noise Ratio (SINR) obtained based on SRS channel estimation cannot reflect the influence of narrowband interference, and the uplink frequency selection scheduling based on SRS channel estimation cannot suppress the narrowband interference from different systems. Therefore, the problem of heterogeneous system interference cannot be solved using existing technologies

Method used

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  • Uplink frequency selection scheduling method and device thereof
  • Uplink frequency selection scheduling method and device thereof
  • Uplink frequency selection scheduling method and device thereof

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Embodiment 1

[0039] refer to figure 1 , showing an uplink frequency selection scheduling method in this application, including:

[0040] Step 102, the base station receives the SRS sent by the UE; the base station may be a TD-LTE base station.

[0041] Step 104, determining the interference strength of the PRB;

[0042] During specific implementation, the interference strength of the PRB may be calculated according to the average power of the PRB and the average power of the PRB in the full bandwidth.

[0043] In a preferred example of the present invention, it is also possible to first identify which PRBs are the interfered PRBs, and then calculate the interference intensity of the interfered PRBs according to the average power of the interfered PRBs and the average power of the PRBs in the full bandwidth; The interference strength of the interfered PRB is regarded as 0. Through this embodiment, the calculation process of the interference intensity of the PRBs that are not interfered i...

Embodiment 2

[0055] The embodiment of the present invention also provides an uplink frequency selective scheduling method, which can be applied to a base station of F-band TD-LTE, for example, an F-band TD-LTE evolved node B (eNodeB). In this method, the uplink baseband processing module in the base station performs real-time interference detection based on narrowband interference characteristics in the full bandwidth of the frequency domain, identifies narrowband interference and interfered PRBs, and calculates the interference intensity information of the interfered PRBs. Then, the uplink scheduling module in the base station performs uplink frequency selection scheduling based on the SRS channel quality information and the interference intensity information of the interfered PRB. figure 2 is a schematic diagram of an uplink frequency selection scheduling method according to Embodiment 2 of the present invention, combined below figure 2 The flow of this embodiment will be specifically ...

Embodiment 3

[0067] The embodiment of the present invention also provides an uplink frequency selection and scheduling device, which can be used to implement the above method. Therefore, the features in the above method embodiments can be applied to this embodiment. The device may be a base station, or a part of the base station. image 3 is a structural block diagram of an uplink frequency selection scheduling device according to Embodiment 3 of the present invention, as shown in image 3 As shown, the device includes:

[0068] The receiving module 302 is configured to receive the SRS sent by the UE;

[0069] The first determination module 304 is configured to determine the interference strength of the PRB;

[0070] The second determination module 306 is configured to determine the scheduling priority of the PRB according to the SRS channel quality and the interference intensity of the interfered PRB;

[0071] The scheduling module 308 is configured to perform uplink frequency selectiv...

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Abstract

The invention provides an uplink frequency selection scheduling method and a device thereof. The uplink frequency selection scheduling method comprises the steps of: receiving a detection reference signal SRS transmitted from user equipment UE by a base station; determining an interference strength of a PRB; determining a scheduling priority of the PRB according to SRS channel quality and PRB interference strength; and performing uplink frequency selection scheduling according to the scheduling priority. The uplink frequency selection scheduling method of the invention can improve the uplink performance of a TD-LTE system.

Description

technical field [0001] The present application relates to the technical field of communications, and in particular to an uplink frequency selection scheduling method and device. Background technique [0002] The uplink of the F-band Time-Division Long-Term Evolution (TD-LTE) base station may be affected by adjacent base stations of different systems (for example, Global System for Mobile communication (Global System for Mobile communication, GSM) 900 / distributed control System (Distributed Control System, DCS) 1800 / Personal Handy-phone System (Personal Handy-phone System, PHS) base station) downlink blocking interference, intermodulation interference and spurious interference, therefore, the uplink reception signal of TD-LTE system may It will be strongly interfered, which will seriously affect the uplink performance of the TD-LTE base station. [0003] In the prior art, engineering methods (for example, antenna isolation, replacement of antennas, adjustment of the antenna,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/12H04W24/08
CPCH04W72/12H04W72/542H04W72/54H04W72/566H04L5/0048H04W72/1268
Inventor 陈先国林卫董书霞
Owner DATANG MOBILE COMM EQUIP CO LTD
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