CN103874120A - Method, system and equipment for avoiding uplink pilot channel (UpPCH) interference - Google Patents

Abstract

The invention discloses a method for avoiding uplink pilot channel (UpPCH) interference. The method comprises the following steps that a NodeB measures the interference level on the UpPCH of each sampling point in a service cell, and reports to a wireless network controller (RNC); the RNC acquires the average interference level of all sampling points within an acquisition time, and informs the node B (NodeB) to adjust the uplink desired power of the service cell when the average interference level surpasses a preset threshold; user equipment (UE) performs uplink synchronization through the adjusted uplink desired power, and finishing avoiding the UpPCH interference when uplink synchronization succeeds. The invention further discloses a system and equipment for avoiding UpPCH interference. Through the scheme of the invention, the transmitting power of the UE can be increased when UpPCH interference occurs, thereby avoiding UpPCH interference.

Description

Bypassing method, system and equipment that a kind of ascending pilot channel disturbs

Technical field

The present invention relates to the technology of evading of channel disturbance, relate in particular to bypassing method, system and equipment that a kind of ascending pilot channel (UpPCH) disturbs.

Background technology

For the interference of UpPCH, only adopt at present UpPCH shifting algorithm to evade.UpPCHshifting algorithm basic principle is exactly by the ascending time slot moving to after UpPCH in Traffic Channel, falls into Serving cell UpPCH channel cause interference in system in order to minimizing common frequency community downlink pilot time slot (DwPTS) signal at a distance.

But for the strong jamming in the system of sustainable existence and outside system, especially the outer strong jamming of system, time-division (TD, Time Division) all ascending time slots of Serving cell all can have very strong interference in system, after UpPCH channel, move to any position and all cannot reduce interference, cause Node B (NodeB) can not receive UpPCH, whole community can not be accessed at random or can not be served as Target cell for switching; And, if the interference level of Serving cell is stronger, according to cell reselection principle, subscriber equipment (the UE of current service cell (Rs), User Equipment) at Primary Common Control Physical Channel (P-CCPCH, PrimaryCommon Control Physical Channel) signal code power (Qrxlevmeas) of upper reception and lag parameter (Qhyst) sum of Serving cell, be not less than the Qrxlevmeas of adjacent cell (Rn) and the cell reselection offset value (Qoffset of adjacent cell _{s, n}) poor, UE cannot start cell reselection, will reside in interfered cell always.

Summary of the invention

In view of this, the bypassing method, system and the equipment that provide a kind of ascending pilot channel (UpPCH) to disturb are provided main purpose of the present invention, can improve the transmitting power of UE, evade UpPCH and disturb.

For achieving the above object, technical scheme of the present invention is achieved in that

The bypassing method that a kind of ascending pilot channel provided by the invention disturbs, the method comprises:

The interference level that in NodeB measurement Serving cell, the UpPCH of each sampled point is subject to, and report RNC;

RNC obtains the average interference level of all sampled points in acquisition time, and in the time that described average interference level exceedes default thresholding, notice NodeB adjusts the up expectation power of Serving cell;

UE carries out uplink synchronous by adjusting rear up expectation power, and in the time of uplink synchronous success, what UpPCH was disturbed has evaded.

In such scheme, the method also comprises: in the time that described average interference level exceedes default thresholding, notice NodeB adjusts the cell reselection offset value of Serving cell to adjacent cell; Described UE is in the time of uplink synchronous failure, and cell reselection offset value and cell reselection principle according to the Serving cell after adjusting to adjacent cell, reselect iso-frequency adjacent community or different system adjacent cell in system.

The avoidance system that a kind of ascending pilot channel provided by the invention disturbs, this system comprises: NodeB, RNC, UE; Wherein,

NodeB, the interference level being subject to for measuring the UpPCH of the each sampled point in Serving cell, and report RNC; Adjust the up expectation power of Serving cell according to the notice of RNC;

RNC, for obtaining the average interference level of all sampled points in acquisition time, in the time that described average interference level exceedes default thresholding, notice NodeB adjusts the up expectation power of Serving cell;

UE, for carrying out uplink synchronous by adjusting rear up expectation power, in the time of uplink synchronous success, what UpPCH was disturbed has evaded.

In such scheme, described RNC comprises: average interference level acquisition module, judge module; Wherein,

Average interference level acquisition module, for obtaining the average interference level of all sampled points in acquisition time;

Judge module, while presetting thresholding for exceeding when described average interference level, notice NodeB adjusts the up expectation power of Serving cell.

In such scheme, described NodeB comprises: measure reporting module, adjusting module; Wherein,

Measure reporting module, the interference level being subject to for measuring the UpPCH of the each sampled point in Serving cell, and report RNC;

Adjusting module, for according to the notice of RNC, adjusts the up expectation power of Serving cell.

In such scheme, described judge module, also when exceed default thresholding when described average interference level, notice NodeB adjusts the cell reselection offset value of Serving cell to adjacent cell.

In such scheme, described adjusting module, also, for according to the notice of RNC, adjusts the cell reselection offset value of Serving cell to adjacent cell;

Described UE, also in the time that uplink synchronous is failed, cell reselection offset value and cell reselection principle according to the Serving cell after adjusting to adjacent cell, reselect iso-frequency adjacent community or different system adjacent cell in system.

A kind of RNC provided by the invention, this RNC comprises: average interference level acquisition module, judge module; Wherein,

Average interference level acquisition module, for obtaining the average interference level of all sampled points in acquisition time;

Judge module, while presetting thresholding for exceeding when described average interference level, notice NodeB adjusts the up expectation power of Serving cell.

In such scheme, described judge module, also when exceed default thresholding when described average interference level, notice NodeB adjusts the cell reselection offset value of Serving cell to adjacent cell.

A kind of NodeB provided by the invention, this NodeB comprises: measure reporting module, adjusting module; Wherein,

Measure reporting module, the interference level being subject to for measuring the UpPCH of the each sampled point in Serving cell, and report RNC;

Adjusting module, for according to the notice of RNC, adjusts the up expectation power of Serving cell.

The invention provides bypassing method, system and equipment that a kind of ascending pilot channel disturbs, the interference level that in NodeB measurement Serving cell, the UpPCH of each sampled point is subject to, and report radio network controller (RNC); RNC obtains the average interference level of all sampled points in acquisition time, and in the time that described average interference level exceedes default thresholding, up (UP) that notice NodeB adjusts Serving cell expects power; UE carries out uplink synchronous by adjusting rear up expectation power, and in the time of uplink synchronous success, what UpPCH was disturbed has evaded; So, in the time occurring that UpPCH disturbs, can improve the transmitting power of UE, evade UpPCH and disturb.

Accompanying drawing explanation

The schematic flow sheet of the bypassing method that the ascending pilot channel that Fig. 1 provides for the embodiment of the present invention disturbs;

The structural representation of the avoidance system that the ascending pilot channel that Fig. 2 provides for the embodiment of the present invention disturbs.

Embodiment

Basic thought of the present invention is: the interference level that in NodeB measurement Serving cell, the UpPCH of each sampled point is subject to, and report RNC; RNC obtains the average interference level of all sampled points in acquisition time, and in the time that described average interference level exceedes default thresholding, notice NodeB adjusts the up expectation power of Serving cell; UE carries out uplink synchronous by adjusting rear up expectation power, and in the time of uplink synchronous success, what UpPCH was disturbed has evaded.

Below by drawings and the specific embodiments, the present invention is described in further detail.

The present invention realizes the bypassing method that a kind of ascending pilot channel disturbs, and as shown in Figure 1, the method comprises following step:

The interference level that in step 101:NodeB measurement Serving cell, the UpPCH of each sampled point is subject to, and report RNC;

Concrete, the interference level that NodeB is subject to take the UpPCH of 1 second each sampled point in period measurement Serving cell, and be decibel millivolt (dBm) by the unit conversion of all interference levels.

Step 102:RNC obtains the average interference level of all sampled points in acquisition time, and in the time that described average interference level exceedes default thresholding, notice NodeB adjusts the up expectation power of Serving cell;

Described RNC obtains the average interference level of all sampled points in acquisition time: RNC calculates the mean value of the interference level that the UpPCH of each sampled point that NodeB reports in acquisition time is subject to slide window mode, obtains the average interference level of all sampled points;

Described RNC calculates the interference level that the UpPCH of each sampled point that NodeB reports in acquisition time is subject to mean value to slide window mode as: calculate the interference level mean value of the 1st to the 20th sampled point according to sampled point timestamp, be made as Q _average1, pass backward 5 sampled point durations, calculate the interference level mean value of the 6th to the 25th sampled point, be made as Q _average2, by that analogy, be calculated to the 60th × (T-20) to the interference level mean value of 60th × T sampled point, be made as Q _average(12T-3), the average interference level of the interior all sampled points of acquisition time is:

$Q_{\mathrm{average}}=\frac{1}{12T-3}\underset{1}{\overset{12T-3}{\mathrm{\Σ}}}{Q}_{\mathrm{average}}N$

The up expectation power of described adjustment Serving cell is generally the up expectation power that increases Serving cell;

Described default thresholding can represent with Supiscp, works as Q _averagewhen > Supiscp, RNC notice NodeB adjusts the up expectation power of Serving cell;

The up expectation power that described notice NodeB adjusts Serving cell is: RNC triggers the message of upgrading system message, adjust the up expectation power of Serving cell by IUB interface notice NodeB, NodeB re-issues up-to-date system message at uu interface, carries the up expectation received power of the Serving cell after adjustment in system message;

This step also comprises: after described NodeB adjusts the up expectation power of Serving cell according to the notice of RNC, by system message 5, the up expectation power after adjusting is handed down to the UE in Serving cell.

Step 103:UE carries out uplink synchronous by adjusting rear up expectation power, and in the time of uplink synchronous success, what UpPCH was disturbed has evaded.

Said method also comprises: in the time that described average interference level exceedes default thresholding, RNC notice NodeB adjusts the cell reselection offset value of Serving cell to adjacent cell;

Described RNC notice NodeB adjusts Serving cell to the cell reselection offset value of adjacent cell and is: RNC triggers the message of upgrading system message, by IUB interface notice, NodeB adjusts the cell reselection offset value of Serving cell to adjacent cell, NodeB re-issues up-to-date system message at uu interface, carries Serving cell after the adjustment cell reselection offset value to adjacent cell in described system message;

Further, described UE is in the time of uplink synchronous failure, and cell reselection offset value and cell reselection principle according to the Serving cell after adjusting to adjacent cell, reselect iso-frequency adjacent community or different system adjacent cell in system;

Further, described NodeB is according to the notice of RNC, adjust Serving cell to the cell reselection offset value of adjacent cell, by system message 11, Serving cell to the cell reselection offset value of adjacent cell after adjusting is handed down to the UE in Serving cell at Primary Common Control Physical Channel (PCCPCH);

Further, when there is Q in Preset Time always _averagewhen < Supiscp, described RNC notice NodeB reduction relevant parameter;

Described relevant parameter comprises: the up expectation received power of Serving cell and/or Serving cell are to the cell reselection offset value of adjacent cell.

In order to realize said method, the avoidance system that the present invention also provides a kind of ascending pilot channel to disturb, as shown in Figure 2, this system comprises: NodeB 21, RNC 22, UE 23; Wherein,

NodeB 21, the interference level being subject to for measuring the UpPCH of the each sampled point in Serving cell, and report RNC 22; Adjust the up expectation power of Serving cell according to the notice of RNC 22;

RNC 22, for obtaining the average interference level of all sampled points in acquisition time, in the time that described average interference level exceedes default thresholding, notice NodeB 21 adjusts the up expectation power of Serving cell;

UE 23, for carrying out uplink synchronous by adjusting rear up expectation power, in the time of uplink synchronous success, what UpPCH was disturbed has evaded;

Described RNC 22 comprises: average interference level acquisition module 221, judge module 222; Wherein,

Average interference level acquisition module 221, for obtaining the average interference level of all sampled points in acquisition time;

Judge module 222, while presetting thresholding for exceeding when described average interference level, notice NodeB 21 adjusts the up expectation power of Serving cell;

Described average interference level acquisition module 221, specifically for calculate the mean value of the interference level that the UpPCH of each sampled point that NodeB 21 reports in acquisition time is subject to slide window mode, obtains the average interference level of all sampled points;

Described judge module 222, also when exceed default thresholding when described average interference level, notice NodeB 21 adjusts the cell reselection offset value of Serving cell to adjacent cell;

Described NodeB 21 comprises: measure reporting module 211, adjusting module 212; Wherein,

Measure reporting module 211, the interference level being subject to for measuring the UpPCH of the each sampled point in Serving cell, and report RNC 22;

Adjusting module 212, for according to the notice of RNC 22, adjusts the up expectation power of Serving cell;

Described adjusting module 212, also, for according to the notice of RNC 22, adjusts the cell reselection offset value of Serving cell to adjacent cell;

Described NodeB 21 also comprises and issues module 213, at adjusting module 212 according to the notice of RNC 22, after adjusting the up expectation power of Serving cell, by system message 5, the up expectation power after adjusting is handed down to the UE 23 in Serving cell;

The described module 213 that issues, also at adjusting module according to the notice of RNC 22, adjust Serving cell to the cell reselection offset value of adjacent cell, by system message 11, Serving cell to the cell reselection offset value of adjacent cell after adjusting is handed down to the UE 23 in Serving cell at Primary Common Control Physical Channel;

Described UE 23, also in the time that uplink synchronous is failed, cell reselection offset value and cell reselection principle according to the Serving cell after adjusting to adjacent cell, reselect iso-frequency adjacent community or different system adjacent cell in system.

Based on said system, the present invention also provides a kind of RNC, and as shown in Figure 2, described RNC 22 comprises: average interference level acquisition module 221, judge module 222; Wherein,

Average interference level acquisition module 221, for obtaining the average interference level of all sampled points in acquisition time;

Judge module 222, while presetting thresholding for exceeding when described average interference level, notice NodeB 21 adjusts the up expectation power of Serving cell;

Described average interference level acquisition module 221, specifically for calculate the mean value of the interference level that the UpPCH of each sampled point that NodeB 21 reports in acquisition time is subject to slide window mode, obtains the average interference level of all sampled points;

Described judge module 222, also when exceed default thresholding when described average interference level, notice NodeB 21 adjusts the cell reselection offset value of Serving cell to adjacent cell.

The present invention also provides a kind of NodeB, and as shown in Figure 2, described NodeB 21 comprises: measure reporting module 211, adjusting module 212; Wherein,

Measure reporting module 211, the interference level being subject to for measuring the UpPCH of the each sampled point in Serving cell, and report RNC 22;

Adjusting module 212, for according to the notice of RNC 22, adjusts the up expectation power of Serving cell;

Described adjusting module 212, also, for according to the notice of RNC 22, adjusts the cell reselection offset value of Serving cell to adjacent cell;

Described NodeB 21 also comprises and issues module 213, at adjusting module 212 according to the notice of RNC 22, after adjusting the up expectation power of Serving cell, by system message 5, the up expectation power after adjusting is handed down to the UE 23 in Serving cell;

The described module 213 that issues, also at adjusting module according to the notice of RNC 22, adjust Serving cell to the cell reselection offset value of adjacent cell, by system message 11, Serving cell to the cell reselection offset value of adjacent cell after adjusting is handed down to the UE 23 in Serving cell at Primary Common Control Physical Channel.

In sum, the solution of the present invention preferentially adopts the mode of the up expectation power of adjusting Serving cell, improves the transmitting power of UE, in the time that UE carries out uplink synchronous success by up expectation power after adjusting, completes and evades UpPCH interference; Secondly adopt the mode of Serving cell to the cell reselection offset value of adjacent cell of adjusting, in the time of uplink synchronous failure, UE is cell reselection offset value and the cell reselection principle to adjacent cell according to the Serving cell after adjusting, reselect iso-frequency adjacent community or different system adjacent cell in system, complete and evade UpPCH interference.

The above, be only preferred embodiment of the present invention, is not intended to limit protection scope of the present invention.

Claims (10)

1. the bypassing method that ascending pilot channel disturbs, is characterized in that, the method comprises:

The interference level that in Node B NodeB measurement Serving cell, the ascending pilot channel UpPCH of each sampled point is subject to, and report radio network controller (RNC);

RNC obtains the average interference level of all sampled points in acquisition time, and in the time that described average interference level exceedes default thresholding, notice NodeB adjusts the up expectation power of Serving cell;

User equipment (UE) carries out uplink synchronous by adjusting rear up expectation power, and in the time of uplink synchronous success, what UpPCH was disturbed has evaded.

2. bypassing method according to claim 1, is characterized in that, the method also comprises: in the time that described average interference level exceedes default thresholding, notice NodeB adjusts the cell reselection offset value of Serving cell to adjacent cell; Described UE is in the time of uplink synchronous failure, and cell reselection offset value and cell reselection principle according to the Serving cell after adjusting to adjacent cell, reselect iso-frequency adjacent community or different system adjacent cell in system.

3. the avoidance system that ascending pilot channel disturbs, is characterized in that, this system comprises: NodeB, RNC, UE; Wherein,

NodeB, the interference level being subject to for measuring the UpPCH of the each sampled point in Serving cell, and report RNC; Adjust the up expectation power of Serving cell according to the notice of RNC;

RNC, for obtaining the average interference level of all sampled points in acquisition time, in the time that described average interference level exceedes default thresholding, notice NodeB adjusts the up expectation power of Serving cell;

UE, for carrying out uplink synchronous by adjusting rear up expectation power, in the time of uplink synchronous success, what UpPCH was disturbed has evaded.

4. avoidance system according to claim 3, is characterized in that, described RNC comprises: average interference level acquisition module, judge module; Wherein,

Average interference level acquisition module, for obtaining the average interference level of all sampled points in acquisition time;

Judge module, while presetting thresholding for exceeding when described average interference level, notice NodeB adjusts the up expectation power of Serving cell.

5. avoidance system according to claim 4, is characterized in that, described NodeB comprises: measure reporting module, adjusting module; Wherein,

Measure reporting module, the interference level being subject to for measuring the UpPCH of the each sampled point in Serving cell, and report RNC;

Adjusting module, for according to the notice of RNC, adjusts the up expectation power of Serving cell.

6. avoidance system according to claim 5, is characterized in that, described judge module, and also when exceed default thresholding when described average interference level, notice NodeB adjusts the cell reselection offset value of Serving cell to adjacent cell.

7. avoidance system according to claim 6, is characterized in that, described adjusting module also, for according to the notice of RNC, is adjusted the cell reselection offset value of Serving cell to adjacent cell;

Described UE, also in the time that uplink synchronous is failed, cell reselection offset value and cell reselection principle according to the Serving cell after adjusting to adjacent cell, reselect iso-frequency adjacent community or different system adjacent cell in system.

8. a RNC, is characterized in that, this RNC comprises: average interference level acquisition module, judge module; Wherein,

Average interference level acquisition module, for obtaining the average interference level of all sampled points in acquisition time;

Judge module, while presetting thresholding for exceeding when described average interference level, notice NodeB adjusts the up expectation power of Serving cell.

9. RNC according to claim 8, is characterized in that, described judge module, and also when exceed default thresholding when described average interference level, notice NodeB adjusts the cell reselection offset value of Serving cell to adjacent cell.

10. a NodeB, is characterized in that, this NodeB comprises: measure reporting module, adjusting module; Wherein,

Measure reporting module, the interference level being subject to for measuring the UpPCH of the each sampled point in Serving cell, and report RNC;

Adjusting module, for according to the notice of RNC, adjusts the up expectation power of Serving cell.

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