WO2015139576A1

WO2015139576A1 - Method and device for uplink anti-interference in tdd-lte system

Info

Publication number: WO2015139576A1
Application number: PCT/CN2015/074116
Authority: WO
Inventors: 尚雁秋; 陆松鹤
Original assignee: 大唐移动通信设备有限公司
Priority date: 2014-03-17
Filing date: 2015-03-12
Publication date: 2015-09-24
Also published as: CN103874217A; CN103874217B

Abstract

The present application provides a method for uplink anti-interference in a TDD-LTE system, comprising: detecting an IOT value of each PRB of all uplink subframes within a preset time; determining whether a PRB larger than a preset quantity of continuous positions exists, IOT values in all the uplink subframes all being higher than an IOT detection threshold; generating, according to a determining result, information indicating a frequency domain position of a PUSCH of a user equipment (UE); and sending DCI comprising the frequency domain position indication information to the UE. In embodiments of the present application, a IOT value, detected within a preset time, of each PRB of all uplink subframes indicates a frequency domain position of a PUSCH, which can not only reduce the uplink computation burden of a base station and reduce working pressure of a DSP, but also flexibly perform frequency domain position scheduling on the PUSCH, thereby effectively performing uplink anti-interference when interference occurs on an uplink link, and finally achieving objectives of improving an overall throughput of a cell and reducing waste of system resources.

Description

Method and device for uplink anti-interference in TDD-LTE system

This application claims the priority of the Chinese patent application filed on March 17, 2014, the Chinese Patent Office, the application number is 201410099210.0, and the invention is entitled "Method and Equipment for Uplink Anti-interference in TDD-LTE System". The citations are incorporated herein by reference.

Technical field

The present application relates to the field of mobile communications, and in particular, to a method and device for uplink anti-interference in a TDD-LTE system.

Background technique

In the LTE (Long Term Evolution) system, when strong interference occurs in certain uplink frequency bands of the eNB (evolved Node B) and the UE (user equipment), the uplink service is affected by interference, which may result in The overall uplink data throughput of the cell decreases.

In the LTE communication system, in the prior art, when the UE performs the uplink service, the following process is generally required, and the uplink data is sent for the first time as an example:

1) The RLC (Radio Link Control) layer of the UE receives the data and notifies the MAC (Medium Access Control) layer;

2) The MAC of the UE triggers the BSR (Buffer Status Report). Since the PUSCH (Physical Uplink Shared Channel) is not allocated to the UE, the SR (Scheduling Request) is triggered and passed through the PUCCH. (Physical Uplink Control Channel) sends the SR to the eNB;

3) The eNB detects the SR and performs uplink scheduling by sending DCI (Downlink Control Information).

4) The UE continues to send BSR and uplink service data through the PUSCH;

5) The eNB continues to perform uplink scheduling according to the received BSR.

The prior art generally solves the problem of uplink interference by an uplink frequency selection method. For example, the eNB receives the SRS (Sounding Reference Symbol) based on the uplink. No.) Performs measurement of CQI (Channel Quality Indicator). The entire system bandwidth CQI measurement is used when the frequency selection is not turned on; the sub-band CQI measurement is used when the frequency selection is turned on.

When the frequency selection is not enabled, the result of the wideband CQI is the average of the uplink measurement results in the entire bandwidth, which cannot truly reflect the uplink channel. The MAC layer performs the MCS (Modulation and Coding Scheme) level selection according to the average CQI. The selected MCS level will be relatively low, causing a part of the CQI high frequency band resources to be wasted; when the frequency selection is enabled, the sub-band CQI is calculated for each user, and the highest sub-band is selected for uplink service transmission, with a total bandwidth of 20 MHz. In the case that one user can occupy 100 PRBs, the sub-band CQI is calculated by a group of 4 PRBs, and one user has 25 values. If the base station has 400 active state users, the calculation amount of the uplink sub-band CQI It will become very large, and the pressure of DSP (Digital Signal Processing) will be very large. At the same time, after the frequency selection is turned on, the calculated granularity of the uplink sub-band CQI is relatively small, and the user resource positions are compared. Disperse, there will be problems with insufficient resource utilization.

Summary of the invention

The purpose of the present application is to solve the above technical defects, and in particular to solve the problem of waste of frequency band resources or excessive calculation pressure of equipment when uplink anti-interference is performed.

To solve the above problem, the embodiment of the present application provides a method for uplink anti-interference in a TDD-LTE system, including:

Detecting an interference noise floor up IOT value of each physical resource block PRB of all uplink subframes in a predetermined time period;

Determining whether there is a PRB greater than a predetermined number of consecutive positions, and the IOT value in each uplink subframe is higher than the IOT detection threshold;

Generating frequency domain location indication information of the physical uplink shared channel PUSCH of the user equipment UE according to the judgment result;

And transmitting downlink control information DCI to the user equipment UE, where the DCI includes the frequency domain location indication information.

The embodiment of the present application further provides an uplink anti-interference device in a TDD-LTE system, including a detection module, a first determining module, a first generating module, and a sending module:

The detecting module is configured to detect an interference noise floor up IOT value of each physical resource block PRB of all uplink subframes in a predetermined time period;

The first determining module is configured to determine whether there is a PRB that is greater than a predetermined number of consecutive positions, and an IOT value in each uplink subframe is higher than an IOT detection threshold;

The first generating module is configured to generate frequency domain location indication information of a physical uplink shared channel PUSCH of the user equipment UE according to the determination result;

The sending module is configured to send downlink control information DCI to the user equipment UE, where the DCI includes the frequency domain location indication information.

The embodiments provided by the present application include one or more of the following beneficial effects:

The embodiment of the present application overcomes the problem that the working pressure of the DSP caused by the increase of the uplink computing amount after the uplink frequency selection is turned on when the base station performs uplink anti-interference in the prior art, and the user resources are dispersed due to the small granularity of calculation. The resource utilization problem; or the average CQI of the entire bandwidth when the frequency selection is not turned on cannot truly reflect the situation of the uplink channel, resulting in waste of frequency band resources. In the solution of the present application, the frequency domain position of the PUSCH is indicated according to the interference noise floor IOT value of each physical resource block PRB of all uplink subframes in the detected predetermined time, which can reduce the uplink computing amount of the base station and reduce the working pressure of the DSP. At the same time, the frequency domain location scheduling of the PUSCH is flexibly performed, thereby providing a powerful guarantee for effectively resisting uplink interference when uplink interference occurs, and finally achieving the purpose of improving the overall throughput of the cell and reducing system resource waste. The above solution proposed in the present application has little change to the existing system, does not affect the compatibility of the system, and is simple and efficient.

DRAWINGS

FIG. 1 is a flowchart of a method for uplink anti-interference in a TDD-LTE system according to an embodiment of the present application;

FIG. 2 is a schematic structural diagram of an apparatus for uplink anti-interference in a TDD-LTE system according to an embodiment of the present application.

detailed description

FIG. 1 is a flowchart of a method for uplink anti-interference in a TDD-LTE (Time Division Long Term Evolution) system according to an embodiment of the present application.

As shown in FIG. 1, in step S110, the base station detects an interference noise floor up IOT value of each physical resource block PRB of all uplink subframes in a predetermined time.

Specifically, in step S110, the PL (Physical Layer) of the base station detects the IOT value of each PRB of all uplink subframes in the time according to a predetermined time. Among them, IOT is an indicator of the comprehensive situation of reactive channel interference.

The specific detection steps are as follows:

Step S110 includes step S111 (not shown) and step S112 (not shown). In step S111, the PL determines an average power value of all pilot symbols in each uplink subframe of each PRB, and uses an average power value as an IOT value in one uplink subframe of each PRB; in step S112, the PL determines The IOT value of each PRB of all uplink subframes within a predetermined time.

In an example, in the TDD-LTE system, the predetermined time is one radio frame 10 ms, and the predetermined current frame structure is that the uplink and downlink subframes are in a 2:2 configuration, and there are four uplink subframes and one uplink sub-frame in a predetermined time period of 10 ms. There are 2 pilot symbols in the frame, and the PL averages the power values of all the antennas of the 2 pilot symbols in each uplink subframe, and determines the average power value, and the average power value is used as the PRB. The IOT value in the uplink subframe; in step S112, the PL determines the IOT value of each PRB in the 4 uplink subframes within 10 ms.

In step S120, the base station determines whether there is a PRB greater than a predetermined number of consecutive positions, and the IOT value in each uplink subframe is higher than the IOT detection threshold.

In an example, in the above example, assuming that the predetermined number of consecutive positions is 5 consecutive positions, in step S120, the PL determines whether there are more than 5 consecutive positions of PRBs, and each of the 4 uplink subframes In the frame, the IOT values of the PRBs of the five or more consecutive positions are higher than the IOT detection threshold.

In step S130, the base station generates frequency domain location indication information of the physical uplink shared channel PUSCH of the user equipment UE according to the determination result.

Specifically, the base station generates frequency domain location indication information of the physical uplink shared channel PUSCH of the user equipment UE according to the determination result.

When the result of the determination is that there is a PRB greater than the predetermined number of consecutive positions, as shown in FIG. 1, step S130 includes step S131 (not shown) and step S132 (not shown); in step S131, when the judgment result is present When the PRB is greater than the predetermined number of consecutive positions, the base station determines the location of the PRB that is greater than the predetermined number of consecutive positions as the uplink interference frequency domain location; in step S132, the base station generates the frequency domain location indication information according to the uplink interference frequency domain location, The frequency domain location indication information indicates that the PUSCH of the UE cannot occupy the uplink interference frequency domain location.

In an example, in the above example, in step S131, when the result of the determination is that there are 5 or more continuous positions of the PRB, the PL determines the position of the PRB of the five or more consecutive positions as the uplink interference frequency domain position, and generates The interference location flag I_BITMAP, and then the PL notifies the MAC (Medium Access Control) layer of the uplink interference frequency domain location; in step S132, the MAC layer generates frequency domain location indication information according to the uplink interference frequency domain location, where The frequency domain location indication information indicates that the PUSCH of the UE cannot occupy the location of the PRB of the five or more consecutive locations.

When the result of the determination is that there is no PRB greater than the predetermined number of consecutive positions, as shown in FIG. 1, step S130 includes step S133 (not shown) and step S134 (not shown); in step S133, when the judgment result is When there is no PRB that is greater than the predetermined number of consecutive positions, the base station generates interference cancellation indication information; in step S134, the base station generates frequency domain location indication information of the PUSCH of the UE according to the interference cancellation indication information, where the frequency domain location indication information indicates The PUSCH of the UE may occupy all uplink frequency domain locations.

Specifically, when the base station determines in step S120 that there is no PRB greater than the predetermined number of consecutive positions, in step S133, the PL of the base station generates interference cancellation indication information and notifies the MAC layer; in step S134, the base station MAC layer is configured according to The interference cancellation indication information is used to generate frequency domain location indication information of the PUSCH of the UE, where the frequency domain location indication information indicates that the PUSCH of the UE can occupy all uplink frequency domain locations.

In step S140, the base station sends downlink control information DCI to the user equipment UE, where the DCI includes frequency domain location indication information.

Specifically, the MAC layer of the base station sends the DCI to the UE; when the result of the determination is that there is a PRB that is greater than the predetermined number of consecutive positions, the frequency domain location indication information included in the DCI indicates that the PUSCH of the UE cannot occupy the uplink interference frequency domain location; When there is no PRB greater than a predetermined number of consecutive positions, the frequency domain position indication information included in the DCI is indicated The PUSCH of the UE may occupy all uplink frequency domain locations.

In an example, the MAC layer of the base station sends the DCI to the UE through the PDCCH, where the DCI format includes the DCI0, and the DCI0 is used for the PUSCH resource scheduling, such as the resource block allocation information, that is, the DCI0 includes the frequency domain location indication information; when the determination result is that the existence is greater than the predetermined When the PRBs of the consecutive positions are located, the frequency domain location indication information included in the DCI0 indicates that the PUSCH of the UE is not occupied by the uplink interference frequency domain position; when the judgment result is that there is no PRB greater than the predetermined number of consecutive positions, the frequency domain location included in the DCI0 The indication information indicates that the PUSCH of the UE can occupy all uplink frequency domain locations.

The foregoing embodiment of the present application indicates the frequency domain location of the PUSCH according to the IOT value of each physical resource block PRB of all uplink subframes in the detected predetermined time; and the interference indicating that the PUSCH of the UE is unoccupied when the uplink has interference The existing PRB position can effectively reduce the uplink interference, reduce the overall throughput of the cell, and reduce the waste of system resources while reducing the uplink computing amount of the base station and reducing the working pressure of the DSP. After the uplink interference is removed, the UE can be notified that all uplink PRB positions are available, and the uplink scheduling of the PUSCH resources is restored to the normal mode, which ensures that the uplink resource scheduling can automatically resume the normal mode after the interference is eliminated, and the uplink resource utilization is improved.

In a preferred embodiment (refer to FIG. 1), when the base station determines that there is a PRB that is greater than a predetermined number of consecutive positions, the base station further includes step S150 (not shown). In step S150, the base station generates interference presence indication information, where the interference The presence indication information includes an uplink interference frequency domain location.

Specifically, when the base station determines in step S120 that there is a PRB that is greater than a predetermined number of consecutive positions, and the IOT value in each uplink subframe is higher than the IOT detection threshold, in step S150, the PL of the base station generates an interference presence indication. Information, wherein the interference presence indication information includes an interference location flag I_BITMAP of the uplink interference frequency domain location.

Preferably (refer to FIG. 1), the method further includes step S160 (not shown), step S170 (not shown), and step S180 (not shown). In step S160, the base station reads the uplink interference frequency domain position currently indicated in the MAC layer; in step S170, the base station determines the uplink interference frequency domain location included in the interference presence indication information and the uplink interference frequency domain currently indicated in the MAC layer. If the location is the same, in step S180, the base station updates the uplink interference frequency domain location currently indicated in the MAC layer when the determination is different; in step S130, the base station generates the PUSCH of the UE according to the currently indicated uplink interference frequency domain location. Frequency domain The location indication information, wherein the frequency domain location indication information indicates that the PUSCH of the UE is not occupied by the currently indicated uplink interference frequency domain location.

Specifically, in step S160, the MAC layer of the base station reads the currently indicated uplink interference frequency domain location I_BITMAP, and in step S170, the MAC layer determines the uplink interference frequency domain location I_BITMAP included in the interference presence indication information. Whether the uplink interference frequency domain location I_BITMAP currently indicated in the MAC layer is the same; in step S180, when the determination is not the same, the MAC layer updates the currently indicated uplink interference frequency domain location I_BITMAP; in step S130, the base station according to the currently indicated uplink Interfering with the frequency domain location I_BITMAP, generating frequency domain location indication information of the PUSCH of the UE, where the frequency domain location indication information indicates that the PUSCH cannot occupy the uplink interference frequency domain location I_BITMAP currently indicated in the MAC layer.

In the foregoing embodiment of the present application, the base station PL can continuously determine the uplink interference frequency domain location, and the MAC layer can continuously update the currently indicated uplink interference frequency domain location, so that the base station can real-time in the uplink when the interference location changes. The ground adjusts the uplink interference frequency domain position according to the interference change position adjustment, thereby realizing effective and continuous uplink anti-interference.

FIG. 2 is a schematic diagram of functions of an uplink anti-interference device in a TDD-LTE system according to an embodiment of the present application. As shown in FIG. 2, the device 100 includes a detection module 110, a first determination module 120, a first generation module 130, and a transmission module 140.

First, the detecting module 110 detects an IOT value of each physical resource block PRB of all uplink subframes within a predetermined time.

Specifically, the detecting module 110 detects the IOT value of each PRB of all uplink subframes in the time according to a predetermined time. Among them, IOT is an indicator of the comprehensive situation of reactive channel interference.

The specific testing process is as follows:

First, the detecting module 110 determines an average power value of all pilot symbols in each uplink subframe of each PRB, and uses an average power value as an IOT value in one uplink subframe of each PRB; then, the detecting module 110 determines a predetermined time. The IOT value of each PRB of all uplink subframes.

In an example, in the TDD-LTE system, the predetermined time is one radio frame 10 ms, and the predetermined current frame structure is that the uplink and downlink subframes are in a 2:2 configuration, and there are four uplink subframes and one uplink sub-frame in a predetermined time period of 10 ms. There are 2 pilot symbols in the frame. First, the detection module 110 And averaging the power values of all the antennas of each of the two pilot symbols in one uplink subframe to determine an average power value, and using the average power value as the IOT value of each PRB in the uplink subframe; then, The detection module 110 determines an IOT value for each of the four uplink subframes within 10 ms.

Subsequently, the first determining module 120 determines whether there is a PRB greater than a predetermined number of consecutive positions, and the IOT value in each uplink subframe is higher than the IOT detection threshold.

In an example, in the above example, assuming that the predetermined number of consecutive positions is 5 consecutive positions, the first determining module 120 determines whether there are more than 5 consecutive positions of PRBs, and each of the 4 uplink subframes The IOT values of the PRBs of the five or more consecutive positions are higher than the IOT detection threshold.

Then, the first generation module 130 generates frequency domain location indication information of the physical uplink shared channel PUSCH of the user equipment UE according to the determination result.

Specifically, the first generation module 130 generates frequency domain location indication information of the physical uplink shared channel PUSCH of the user equipment UE according to the determination result.

When the result of the determination is that there is a PRB greater than the predetermined number of consecutive positions, the first generation module 130 determines the position of the PRB of the continuous position as the uplink interference frequency domain position; subsequently, the first generation module 130 generates the uplink interference frequency domain position according to the uplink interference frequency domain position. The frequency domain location indication information, wherein the frequency domain location indication information indicates that the PUSCH of the UE cannot occupy the uplink interference frequency domain location.

In an example, in the example above, when the result of the determination is that there are more than 5 consecutive positions of the PRB, the first generation module 130 determines the position of the PRB of the five or more consecutive positions as the uplink interference frequency domain position, and generates interference. The first generation module 130 generates frequency domain location indication information according to the uplink interference frequency domain location, where the frequency domain location indication information indicates that the PUSCH of the UE cannot occupy the location of the PRB of the five or more consecutive locations.

When the result of the determination is that there is no PRB greater than the predetermined number of consecutive positions, first, the first generation module 130 generates interference cancellation indication information; then, the first generation module 130 generates a frequency domain location of the PUSCH of the UE according to the interference cancellation indication information. The indication information, wherein the frequency domain location indication information indicates that the PUSCH of the UE can occupy all uplink frequency domain locations.

Specifically, when it is determined that there is no PRB greater than a predetermined number of consecutive positions, the first The generating module 130 generates interference cancellation indication information, and then generates frequency domain location indication information of the PUSCH of the UE according to the interference cancellation indication information, where the frequency domain location indication information indicates that the PUSCH of the UE can occupy all uplink frequency domain locations.

Then, the sending module 140 sends downlink control information DCI to the user equipment UE, where the DCI includes frequency domain location indication information.

Specifically, the sending module 140 sends a DCI to the UE. When the result of the determination is that there is a PRB that is greater than the predetermined number of consecutive positions, the frequency domain location indication information included in the DCI indicates that the PUSCH of the UE cannot occupy the uplink interference frequency domain location; When there is no PRB greater than a predetermined number of consecutive positions, the frequency domain location indication information included in the DCI indicates that the PUSCH of the UE can occupy all uplink frequency domain locations.

In an example, the sending module 140 sends a DCI to the UE by using a PDCCH, where the DCI format includes DCI0, and the DCI0 is used for PUSCH resource scheduling, such as resource block allocation information, that is, DCI0 includes frequency domain location indication information; when the judgment result is greater than a predetermined one. When the PRB of the consecutive positions is located, the frequency domain location indication information included in the DCI0 indicates that the PUSCH of the UE is not occupied by the uplink interference frequency domain position; when the judgment result is that there is no PRB greater than the predetermined number of consecutive positions, the frequency domain location indication included by the DCI0 The information indicates that the PUSCH of the UE can occupy all uplink frequency domain locations.

In a preferred embodiment (refer to FIG. 2), when the base station determines that there is a PRB that is greater than a predetermined number of consecutive positions, the device 100 further includes a second generation module (not shown), and the second generation module generates interference presence indication information, where The interference presence indication information includes an uplink interference frequency domain location.

Specifically, when it is determined that there is a PRB greater than a predetermined number of consecutive positions, when the IOT value in each uplink subframe is higher than the IOT detection threshold, the second generation module generates interference storage. In the indication information, the interference presence indication information includes an interference location flag I_BITMAP of the uplink interference frequency domain location.

Preferably (refer to FIG. 2), the device 100 further includes a reading module (not shown), a second determining module (not shown), and an updating module (not shown). The reading module reads the uplink interference frequency domain position currently indicated in the MAC layer; and determines, by the second determining module, whether the uplink interference frequency domain location included in the interference presence indication information is the same as the uplink interference frequency domain location currently indicated in the MAC layer; When the determination is not the same, the update module updates the uplink interference frequency domain location currently indicated in the MAC layer; the first generation module 130 generates the frequency domain location indication information of the PUSCH of the UE according to the currently indicated uplink interference frequency domain location, where the frequency The domain location indication information indicates that the PUSCH of the UE cannot occupy the currently indicated uplink interference frequency domain location.

Specifically, first, the reading module reads the uplink interference frequency domain position I_BITMAP of the current indication that it has stored; subsequently, the second determining module determines the uplink interference frequency domain location I_BITMAP included in the interference presence indication information and the current indication in the MAC layer. Whether the uplink interference frequency domain location I_BITMAP is the same; then, when the determination is not the same, the update module updates the currently indicated uplink interference frequency domain location I_BITMAP; the first generation module 130 generates the UE according to the currently indicated uplink interference frequency domain location I_BITMAP The frequency domain location indication information of the PUSCH, wherein the frequency domain location indication information indicates that the PUSCH cannot occupy the uplink interference frequency domain location I_BITMAP currently indicated in the MAC layer.

One of ordinary skill in the art can understand that all or part of the steps carried by the method of implementing the above embodiments can be completed by a program to instruct related hardware, and the program can be stored in a computer readable storage medium. When executed, one or a combination of the steps of the method embodiments is included.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing module, or each unit may exist physically separately, or two or more units may be integrated into one module. The above integrated modules can be implemented in the form of hardware. It can also be implemented in the form of a software function module. The integrated modules, if implemented in the form of software functional modules and sold or used as stand-alone products, may also be stored in a computer readable storage medium.

The above mentioned storage medium may be a read only memory, a magnetic disk or an optical disk or the like.

The above description is only a partial embodiment of the present application, and it should be noted that those skilled in the art can also make some improvements and retouching without departing from the principle of the present application. It should be considered as the scope of protection of this application.

Claims

A method for uplink anti-interference in a time-sharing long-term evolution TDD-LTE system, characterized in that:

Detecting an interference noise floor up IOT value of each physical resource block PRB of all uplink subframes in a predetermined time period;

Determining whether there is a PRB greater than a predetermined number of consecutive positions, and the IOT value in each uplink subframe is higher than the IOT detection threshold;

Generating frequency domain location indication information of the physical uplink shared channel PUSCH of the user equipment UE according to the judgment result;

And transmitting downlink control information DCI to the user equipment UE, where the DCI includes the frequency domain location indication information.
The method according to claim 1, wherein detecting an IOT value of each PRB of all uplink subframes in a predetermined time comprises:

Determining an average power value of all pilot symbols in an uplink subframe of each PRB, and using the average power value as an IOT value of the each PRB in the one uplink subframe;

The IOT value of each PRB of all uplink subframes within a predetermined time period is determined.
The method according to claim 1, wherein the generating the frequency domain location indication information of the PUSCH of the UE according to the determination result comprises:

When the result of the determination is that there is a PRB greater than the predetermined number of consecutive positions, the position of the PRB of the consecutive position is determined as the uplink interference frequency domain position;

Generating the frequency domain location indication information according to the uplink interference frequency domain location, where the frequency domain location indication information indicates that the PUSCH of the UE is not occupied by the uplink interference frequency domain location.
The method of claim 3, further comprising:

And generating interference presence indication information, where the interference presence indication information includes the uplink interference frequency domain location.
The method of claim 4, further comprising:

Reading the uplink interference frequency domain position currently indicated in the MAC layer of the medium access control;

Determining, in the interference presence indication information, the uplink interference frequency domain location and Whether the uplink interference frequency domain position currently indicated in the MAC layer is the same;

Updating the uplink interference frequency domain position currently indicated in the MAC layer when the determination is not the same;

Generating frequency domain location indication information of the PUSCH of the UE according to the currently indicated uplink interference frequency domain location, where the frequency domain location indication information indicates that the PUSCH of the UE is not occupied by the currently indicated uplink interference frequency Domain location.
The method according to claim 1, wherein the generating the frequency domain location indication information of the PUSCH of the UE according to the determination result comprises:

When the result of the determination is that there is no PRB greater than the predetermined number of consecutive positions, the interference cancellation indication information is generated;

Generating frequency domain location indication information of the PUSCH of the UE according to the interference cancellation indication information, where the frequency domain location indication information indicates that the PUSCH of the UE can occupy all uplink frequency domain locations.
An apparatus for uplink anti-interference in a time-sharing long-term evolution TDD-LTE system, comprising: a detecting module, a first determining module, a first generating module, and a sending module:

The detecting module is configured to detect an interference noise floor up IOT value of each physical resource block PRB of all uplink subframes in a predetermined time period;

The first determining module is configured to determine whether there is a PRB that is greater than a predetermined number of consecutive positions, and an IOT value in each uplink subframe is higher than an IOT detection threshold;

The first generating module is configured to generate frequency domain location indication information of a physical uplink shared channel PUSCH of the user equipment UE according to the determination result;

The sending module is configured to send downlink control information DCI to the user equipment UE, where the DCI includes the frequency domain location indication information.
The device according to claim 7, wherein the detecting module comprises:

Determining an average power value of all pilot symbols in an uplink subframe of each PRB, and using the average power value as an IOT value of the each PRB in the one uplink subframe;

The IOT value of each PRB of all uplink subframes within a predetermined time period is determined.
The device according to claim 7, wherein the first generating module comprises:

When the result of the determination is that there is a PRB greater than the predetermined number of consecutive positions, the position of the PRB of the consecutive position is determined as the uplink interference frequency domain position;

Generating the frequency domain location indication information according to the uplink interference frequency domain location, where the frequency domain location indication information indicates that the PUSCH of the UE is not occupied by the uplink interference frequency domain location.
The device according to claim 9, further comprising a second generation module:

The second generating module is configured to generate interference presence indication information, where the interference presence indication information includes the uplink interference frequency domain location.
The device according to claim 10, further comprising a reading module, a second determining module, and an updating module:

The reading module is configured to read an uplink interference frequency domain position currently indicated by the medium access control MAC layer;

The second determining module is configured to determine whether the uplink interference frequency domain location included in the interference presence indication information is the same as the uplink interference frequency domain location currently indicated in the MAC layer;

The update module is configured to update an uplink interference frequency domain location currently indicated in the MAC layer when the determination is not the same;

The first generation module is configured to generate frequency domain location indication information of the PUSCH of the UE according to the currently indicated uplink interference frequency domain location, where the frequency domain location indication information indicates that the PUSCH of the UE is unavailable. The uplink interference frequency domain location occupying the current indication.
The device according to claim 7, wherein the first generating module comprises:

When the result of the determination is that there is no PRB greater than the predetermined number of consecutive positions, the interference cancellation indication information is generated;

Generating frequency domain location indication information of the PUSCH of the UE according to the interference cancellation indication information, where the frequency domain location indication information indicates that the PUSCH of the UE can occupy all uplink frequency domain locations.