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Base station uplink and downlink time slot configuration method, device and system

A configuration method and time slot configuration technology, which are applied in wireless communication, electrical components, network planning, etc., can solve the problems of inability to effectively judge whether it can be applied, low reliability, etc., to improve the efficiency of spectrum use, the method is simple and effective, and it is easy to use. effect achieved

Active Publication Date: 2016-03-02
CHINA MOBILE COMM GRP CO LTD
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  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

User-based measurement has a high degree of randomness, so it cannot be effectively judged whether it can be applied, and the reliability is not high. In addition, the interference problem between base stations cannot be avoided, so this method cannot be applied

Method used

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  • Base station uplink and downlink time slot configuration method, device and system
  • Base station uplink and downlink time slot configuration method, device and system
  • Base station uplink and downlink time slot configuration method, device and system

Examples

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Embodiment 1

[0055] Such as figure 1 As shown, the HeNB is deployed on the edge of the MBS. Such as figure 2 As shown, the embodiment of the base station uplink and downlink time slot configuration method of the present invention includes the following steps:

[0056] Step 102, the HeNB measures the pilot signal strength of the same-frequency or adjacent-frequency MBS;

[0057] Step 104, selecting the MBS with the largest pilot signal strength;

[0058] Step 106, detecting the uplink and downlink time slot configuration of the MBS, the uplink and downlink time slot configuration of the MBS can be obtained by monitoring air interface messages (TDD-Config in SIB1 in TS36.3316.2.2), X2 interface or network management data;

[0059] Step 108, comparing the maximum pilot signal strength with a preset threshold;

[0060] Step 110, when the maximum pilot signal strength is lower than the threshold value, configure some downlink time slots with the same time slot number as the downlink time s...

Embodiment 2

[0072] Such as image 3 As shown, another embodiment of the uplink and downlink time slot configuration method of the present invention mainly improves the macro base station (MBS), including the following steps:

[0073] Step 202, the MBS detects the uplink and downlink time slot configuration of adjacent HeNBs; the MBS obtains the uplink and downlink time slot configuration information of HeNBs in the MBS coverage area by monitoring the X2 interface or network management data;

[0074] In step 204, the MBS compares the HeNB's uplink and downlink time slot configuration with its own uplink and downlink time slot configuration to obtain uplink and downlink crossover time slots; Figure 4 As shown, there is an uplink and downlink crossover between MBS and HeNB in ​​the 3rd and 8th time slots: MBS is an uplink time slot, and HeNB is a downlink time slot. At this time, there are macro users transmitting and interfering with home user reception, and HeNB transmitting interfering w...

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Abstract

A base station uplink and downlink time slot configuration method, device and system, the method comprising: a low hierarchy base station measures the pilot signal strength of a high hierarchy base station with the same frequency or an adjacent frequency, and detects the uplink and downlink time slot configuration of the high hierarchy base station with the maximum pilot signal strength; the low hierarchy base station compares the maximum pilot signal strength with a threshold; when the maximum pilot signal strength is lower than the threshold, configuring a part of the downlink time slots with the same time slot serial numbers of the low hierarchy base station and the high hierarchy base station with the maximum pilot signal strength as uplink time slots, or configuring a part of the uplink time slots with the same time slot serial numbers of the low hierarchy base station and the high hierarchy base station with the maximum pilot signal strength as downlink time slots. The present invention achieves different uplink and downlink configuration modes between base stations of different hierarchies without increasing the interference between base stations, thus improving frequency spectrum usage efficiency. Furthermore, the method is simple and effective, and is easy to realize.

Description

technical field [0001] The present invention relates to a wireless technology, in particular to a base station uplink and downlink time slot configuration method, device and system. Background technique [0002] As we all know, the advantage of the Time Division Duplexing (TDD for short) system is that the uplink and downlink ratios can be configured according to the actual demand of the uplink and downlink traffic. However, if adjacent cells adopt different uplink and downlink configurations, the base station will interfere with the base station and users will interfere with users in the time slots where the uplink and downlink intersect. Therefore, the adjacent cells of the current TDD system can only use the same uplink and downlink configuration. , which greatly limits the flexibility of TDD applications. [0003] In the current TDD network architecture, it is difficult to realize that adjacent cells use different uplink and downlink configurations, which greatly limits...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/00H04W72/04
CPCH04W16/10
Inventor 潘峮李男
Owner CHINA MOBILE COMM GRP CO LTD
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