CN101583190A - Method and system for determining position of user equipment - Google Patents
Method and system for determining position of user equipment Download PDFInfo
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- CN101583190A CN101583190A CNA200810100248XA CN200810100248A CN101583190A CN 101583190 A CN101583190 A CN 101583190A CN A200810100248X A CNA200810100248X A CN A200810100248XA CN 200810100248 A CN200810100248 A CN 200810100248A CN 101583190 A CN101583190 A CN 101583190A
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Abstract
The invention discloses a method for determining the position of user equipment, which comprises the following steps: the base station sets a threshold of the intensity of a reference signal of a base station in a district according to the intensity of the reference signal of the base station in the district; the base station sends measuring control to user equipment, wherein the measuring control comprises the threshold of the intensity of the reference signal of the base station; the user equipment measures the intensity of the reference signal of the base station in response to the measuring control, determines the position of the user equipment according to the relation between the measuring result and the threshold of the intensity of the reference signal of the base station and reports the position to the base station through the measuring event. In addition, the invention also discloses a system for determining the position of the user equipment. The user equipment can be accurately positioned by the technical scheme to enable the interference coordination to carry out more general management.
Description
Technical field
The present invention relates to the communications field, and especially, relate to a kind of location of user equipment and determine method and system.
Background technology
Long Term Evolution (Long Term Evolution, abbreviating LTE as) network is by land radio access web (Evolved UTRAN, abbreviate E-UTRAN as), base station (EvolvedNodeB, abbreviate eNB as) and evolution packet switching center (Evolved Packet Core, abbreviate EPC as) form, wherein, the characteristics of network are for being tending towards flattening.EUTRAN comprises the set of the eNB that is connected by the S1 interface with EPC, can connect by X2 between the eNB.S1, X2 are logic interfacing.An EPC can manage one or more eNB, and an eNB also can be controlled by a plurality of EPC, and an eNB can manage one or more sub-districts.
In the LTE system, for eliminating the interference of neighboring interval up-downgoing, introduced Inter-Cell Interference Coordination (Inter-Cell Interference Coordination, abbreviate ICIC as), the principle of ICIC is: be interfered away from the UE of base station is easier, distribute not disturbed Physical Resource Block (Physical Resource Block abbreviates PRB as) to realize interference eliminated by being preferably these UE.
Wherein, mainly being divided into following two kinds of situations considers:
(1) up ICIC
By high interference indication (High Interference Indicator abbreviates HII as) and overload indication (Overload Indicator abbreviates OI as) indication abutting subdistrict and the more serious PRB of this cell uplink interference, for example, PRBA, B ...; After this indication was received in the adjacent area, in the uplink scheduling of this cell terminal, the disturbed PRB for away from the non-HII of the terminal distribution of base station (or OI) indication reached the purpose of minimizing to the interference of adjacent area.
The concrete steps of such scheme are as follows:
Step 1, terminal 1 are in sub-district 1 far point, up use PRBA, and B ... 1 dispatches in the sub-district; Since nearer relatively apart from sub-district 2, to sub-district 2 up PRBA, B ... cause interference;
Step 2 after sub-district 2 detects interference, is informed sub-district 1 up PRB A, B ... receive interference;
Step 3, sub-district 1 guarantee that as far as possible the uplink scheduling of all far point UE of this sub-district does not re-use PRBA, B ..., help sub-district 2 to eliminate uplink interference; Shown in Figure 1, terminal 1 is distributed new scheduling PRB;
(2) descending ICIC
By the indication abutting subdistrict, the PRB that this cell downlink transmitting power is bigger, as PRBA, B ..., inform the disturbed condition that this cell downlink is possible; After this indication was received in the adjacent area, in the descending scheduling of this cell terminal, the descending PRB for away from the big transmitting power of the non-above-mentioned indication of terminal distribution of base station reached the purpose of minimizing to the descending interference of terminal.
The concrete steps of such scheme are as follows: wherein, terminal 1 is in sub-district 1 far point, descending use PRBA, and B ... 1 dispatches in the sub-district; Sub-district 2 descending PRBA, B, the signal of .. causes descending interference to terminal 1;
Step 1, sub-district 2 are at PRBA, and B when the .. down transmitting power is excessive, informs sub-district 1 descending PRBA, B ... may cause descending interference to UE in the sub-district 1;
Step 2, sub-district 1 guarantee that as far as possible the descending scheduling of all far point UE of this sub-district does not re-use PRBA, B ..., prevent that 2 pairs of these cell terminals in sub-district from causing descending interference; As shown in Figure 2, terminal 1 is distributed new scheduling PRB;
Wherein, how determining whether terminal is in the sub-district remote location, is the indispensable technology of ICIC, still, does not also have better scheme to solve this problem at present.
Summary of the invention
Consider the problems referred to above and make the present invention, for this reason, main purpose of the present invention is to provide a kind of location of user equipment to determine method and system, to solve the problem that can't determine subscriber equipment position in the sub-district in the correlation technique.
According to an aspect of the present invention, provide a kind of location of user equipment to determine method.
Determine that according to the location of user equipment of the embodiment of the invention method comprises: the base station is provided with base station reference signal strength thresholding in the sub-district according to the base station reference signal strength in the sub-district; The base station wherein, is measured control and is comprised base station reference signal strength thresholding to the control of subscriber equipment sending measuring; In response to measuring control, subscriber equipment is measured its base station reference signal strength, and determines the position of subscriber equipment and report the base station by measurement event according to the relation of measurement result and base station reference signal strength thresholding.
Wherein, above-mentioned base station to the mode of subscriber equipment sending measuring control comprise following one of at least: by broadcasting all subscriber equipment sending measurings controls in the sub-district, control to the particular terminal sending measuring by public the set of terminal control of subscriber equipment sending measuring and signaling process of passing through special use in group.
Preferably, above-mentioned base station reference signal strength thresholding comprises far point thresholding and non-far point thresholding, and wherein, the far point thresholding is less than non-far point thresholding.
Wherein, the particular content of above-mentioned measurement control comprises one of following at least: subscriber equipment carries out condition, the cycle of user equipment to report measurement event, the pre-determined number of user equipment to report measurement event and the definition of measurement event that measurement event reports.
Preferably, the processing that reports of subscriber equipment is specifically as follows: subscriber equipment is controlled in the predetermined period according to measurement and reports far point incident or non-far point incident with pre-determined number to the base station.
Wherein, above-mentioned measurement event is defined as: be lower than under the situation of far point thresholding in subscriber equipment detected base station signal strength in predetermined period, report the far point incident to the base station; Be higher than under the situation of non-far point thresholding in subscriber equipment detected base station reference signal strength in predetermined period, then report non-far point incident.
Wherein, under the one or more situations that need to revise in above-mentioned base station reference signal strength thresholding, predetermined period and pre-determined number, make amendment on the backstage or according to predetermined self-optimizing algorithm by the base station.
According to a further aspect in the invention, provide a kind of location of user equipment to determine system.
Determine that according to the location of user equipment of the embodiment of the invention system comprises: module is set, is positioned at the base station, be used for base station reference signal strength according to the sub-district base station reference signal strength thresholding in the sub-district is set; Issue module, be positioned at the base station, be used for controlling to the subscriber equipment sending measuring; Measurement module, be positioned at subscriber equipment, be used for measuring the base station reference signal strength of subscriber equipment in response to measuring control, and determine the position of subscriber equipment, and give the base station with the reporting position of determining by measurement event according to the relation of measurement result and base station reference signal strength thresholding.
Wherein, above-mentioned base station to the mode of subscriber equipment sending measuring control comprise following one of at least: by broadcasting all subscriber equipment sending measurings controls in the sub-district, control to the particular terminal sending measuring by public the set of terminal control of subscriber equipment sending measuring and signaling process of passing through special use in group.
Preferably, be provided with in the module above-mentioned, base station reference signal strength thresholding comprises far point thresholding and non-far point thresholding, and wherein, the far point thresholding is less than non-far point thresholding.
Preferably, the processing that reports of subscriber equipment is specifically as follows: subscriber equipment is controlled in the predetermined period according to measurement and reports far point incident or non-far point incident with pre-determined number to the base station.
Wherein, the definition of above-mentioned measurement event is specially: be lower than under the situation of far point thresholding in subscriber equipment detected base station signal strength in predetermined period, report the far point incident to the base station; Be higher than under the situation of non-far point thresholding in subscriber equipment detected base station reference signal strength in predetermined period, then report non-far point incident.
Wherein, above-mentioned base station be further used on the backstage or according to predetermined self-optimizing algorithm to one or more the making amendment in base station reference signal strength thresholding, predetermined period and the pre-determined number.
By technique scheme, can accurately position subscriber equipment, make that interference coordination carries out more comprehensively, more fully management.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, perhaps understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the specification of being write, claims and accompanying drawing.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used from explanation the present invention with embodiments of the invention one, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is that uplink interference is coordinated schematic diagram in the correlation technique;
Fig. 2 is a downlink interference collaboration schematic diagram in the correlation technique;
Fig. 3 is a flow chart of determining method according to the location of user equipment of the embodiment of the invention;
Fig. 4 is the schematic diagram according to the reference signal strength threshold setting of the method for the embodiment of the invention;
Fig. 5 is the schematic diagram according to the measurement event definition of the embodiment of the invention; And
Fig. 6 is a block diagram of determining system according to the location of user equipment of the embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, and be not used in qualification the present invention.
Method embodiment
In the present embodiment, provide a kind of location of user equipment to determine method.Fig. 3 is the flow chart according to the Inter-Cell Interference Coordination method of measurement of the embodiment of the invention.
As shown in Figure 3, determine that according to the location of user equipment of present embodiment method comprises:
Step S302, the base station is provided with base station reference signal strength thresholding in the sub-district according to the base station reference signal strength in the sub-district;
Step S304, the base station wherein, is measured control and is comprised base station reference signal strength thresholding to the control of subscriber equipment sending measuring;
Step S306, in response to measuring control, subscriber equipment is measured its base station reference signal strength, and determines the position of subscriber equipment and report the base station by measurement event according to the relation of measurement result and base station reference signal strength thresholding.
Wherein, the base station to the mode of subscriber equipment sending measuring control comprise following one of at least:
(1) by broadcasting all subscriber equipment sending measuring control in the sub-district, in the LTE system, UE can intercept system broadcast information under connected state and Idle state, can in system broadcasts, insert the information change indication, the notice terminal reads corresponding metrical information, realizes measuring control and issues;
(2) by the subscriber equipment sending measuring control in group of public set of terminal, in the LTE system, can be by being one group of common group mark of UE configuration, when UE reads Physical Downlink Control Channel, according to the PRB of this group mark, obtain metrical information from Physical Downlink Shared Channel parsing appointment;
(3) and by special-purpose signaling process control to the particular terminal sending measuring, in the LTE system, can be by being single UE sign, when UE reads Physical Downlink Control Channel, according to the PRB of this sign, obtain metrical information from Physical Downlink Shared Channel (PDSCH) parsing appointment.
For preventing ping-pong phenomenon, the thresholding of certain width can be set, as shown in Figure 4, greatest circle is represented cell coverage area, from the near non-far point thresholding of circle expression of center of housing estate, from center of housing estate circle expression far point thresholding far away.Base station reference signal strength thresholding comprises far point thresholding and non-far point thresholding, and wherein, the far point thresholding is less than non-far point thresholding.And, can make amendment to the far point and the non-far point thresholding of this measurement, adapt to the variation of scene, perhaps use the simple gate limit;
Wherein, the particular content of measuring control comprises one of following at least: subscriber equipment carries out condition, the predetermined period of user equipment to report measurement event, the pre-determined number of user equipment to report measurement event and the definition of measurement event that measurement event reports.
Preferably, the processing that reports of subscriber equipment is specially: subscriber equipment is controlled in the predetermined period according to measurement and reports far point incident or non-far point incident with pre-determined number to the base station.That is to say that UE reports the cycle of this incident and number of times to make amendment, for example, adjust by the backstage configuration modification or according to the self-optimizing algorithm.
Wherein, as shown in Figure 5, measurement event is defined as:
(1) is lower than under the situation of far point thresholding in subscriber equipment detected base station signal strength in predetermined period, reports the far point incident, that is, under the situation of the part on the left of the measured signal strengths value is arranged in Fig. 5 far point thresholding, be judged as the far point incident to the base station;
(2) be higher than under the situation of non-far point thresholding in subscriber equipment detected base station reference signal strength in predetermined period, then report non-far point incident, that is, be arranged in when the measured signal strengths value under the situation of part on the non-far point thresholding of Fig. 5 right side, be judged as non-far point incident.
System embodiment
In the present embodiment, provide a kind of location of user equipment to determine system.Fig. 6 is the block diagram according to the Inter-Cell Interference Coordination measuring system of the embodiment of the invention.
As shown in Figure 6, said system comprises:
Module 60 is set, is positioned at the base station, be used for base station reference signal strength according to the sub-district base station reference signal strength thresholding in the sub-district is set;
Issue module 62, be positioned at the base station, be used for controlling to the subscriber equipment sending measuring;
Measurement module 64, be positioned at subscriber equipment, be used for measuring the base station reference signal strength of subscriber equipment in response to measuring control, and determine the position of subscriber equipment, and give the base station with the reporting position of determining by measurement event according to the relation of measurement result and base station reference signal strength thresholding.
Wherein, above-mentioned base station to the mode of subscriber equipment sending measuring control comprise following one of at least: by broadcasting all subscriber equipment sending measurings controls in the sub-district, control to the particular terminal sending measuring by public the set of terminal control of subscriber equipment sending measuring and signaling process of passing through special use in group.
Preferably, be provided with in the module 60 above-mentioned, base station reference signal strength thresholding comprises far point thresholding and non-far point thresholding, and wherein, the far point thresholding is less than non-far point thresholding.
Preferably, the processing that reports of subscriber equipment is specifically as follows: subscriber equipment is controlled in the predetermined period according to measurement and reports far point incident or non-far point incident with pre-determined number to the base station.
Wherein, the definition of above-mentioned measurement event is specially: be lower than under the situation of far point thresholding in subscriber equipment detected base station signal strength in predetermined period, report the far point incident to the base station; Be higher than under the situation of non-far point thresholding in subscriber equipment detected base station reference signal strength in predetermined period, then report non-far point incident.
Wherein, above-mentioned base station be further used on the backstage or according to predetermined self-optimizing algorithm to one or more the making amendment in base station reference signal strength thresholding, predetermined period and the pre-determined number.
In sum,, can accurately position, make interference coordination carry out more aspect, more fully management subscriber equipment by means of technique scheme of the present invention.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (13)
1. a location of user equipment is determined method, it is characterized in that, described method comprises:
Described base station is provided with base station reference signal strength thresholding in the described sub-district according to the base station reference signal strength in the described sub-district;
Described base station is controlled to described subscriber equipment sending measuring, and wherein, described measurement control comprises described base station reference signal strength thresholding;
In response to described measurement control, described subscriber equipment is measured its base station reference signal strength, and determines the position of described subscriber equipment and report described base station by measurement event according to the relation of measurement result and described base station reference signal strength thresholding.
2. method according to claim 1, it is characterized in that, described base station to the mode of described subscriber equipment sending measuring control comprise following one of at least: issue described measurement control, issue described measurement control and the signaling process by special use by public set of terminal subscriber equipment in group and issue described measurement to particular terminal and control by broadcasting all subscriber equipmenies in described sub-district.
3. method according to claim 1 is characterized in that, described base station reference signal strength thresholding comprises far point thresholding and non-far point thresholding, and wherein, described far point thresholding is less than described non-far point thresholding.
4. method according to claim 3, it is characterized in that it is one of following that the particular content of described measurement control comprises at least: described subscriber equipment carries out condition, the predetermined period of the described measurement event of described user equipment to report, the pre-determined number of the described measurement event of described user equipment to report and the definition of described measurement event that measurement event reports.
5. method according to claim 4, it is characterized in that the processing that described subscriber equipment reports is specially: described subscriber equipment is controlled in the described predetermined period according to described measurement and reports described far point incident or described non-far point incident with pre-determined number to described base station.
6. method according to claim 5 is characterized in that, described measurement event is defined as: be lower than under the situation of described far point thresholding in described subscriber equipment detected described base station signal strength in described predetermined period, report the far point incident to the base station; Be higher than under the situation of described non-far point thresholding in described subscriber equipment detected described base station reference signal strength in described predetermined period, then report non-far point incident.
7. method according to claim 4, it is characterized in that, under one or more situations that need to revise in described base station reference signal strength thresholding, described predetermined period and described pre-determined number, make amendment on the backstage or according to predetermined self-optimizing algorithm by described base station.
8. a location of user equipment is determined system, it is characterized in that, described system comprises:
Module is set, is positioned at described base station, be used for base station reference signal strength according to described sub-district base station reference signal strength thresholding in the described sub-district is set;
Issue module, be positioned at described base station, be used for to described subscriber equipment sending measuring control;
Measurement module, be positioned at described subscriber equipment, be used in response to described measurement control, measure the base station reference signal strength of described subscriber equipment, and determine the position of described subscriber equipment, and give described base station by the described reporting position that measurement event will be determined according to the relation of measurement result and described base station reference signal strength thresholding.
9. system according to claim 8, it is characterized in that, described base station to the mode of described subscriber equipment sending measuring control comprise following one of at least: issue described measurement control, issue described measurement control and the signaling process by special use by public set of terminal subscriber equipment in group and issue described measurement to particular terminal and control by broadcasting all subscriber equipmenies in described sub-district.
10. system according to claim 8 is characterized in that, is provided with in the module described, and described base station reference signal strength thresholding comprises far point thresholding and non-far point thresholding, and wherein, described far point thresholding is less than described non-far point thresholding.
11. method according to claim 10, it is characterized in that the processing that described subscriber equipment reports is specially: described subscriber equipment is controlled in the predetermined period according to described measurement and reports described far point incident or described non-far point incident with pre-determined number to described base station.
12. method according to claim 11, it is characterized in that, the definition of described measurement event is specially: be lower than under the situation of described far point thresholding in described subscriber equipment detected described base station signal strength in described predetermined period, report the far point incident to the base station; Be higher than under the situation of described non-far point thresholding in described subscriber equipment detected described base station reference signal strength in described predetermined period, then report non-far point incident.
13. method according to claim 11, it is characterized in that, described base station be further used on the backstage or according to predetermined self-optimizing algorithm to one or more the making amendment in described base station reference signal strength thresholding, described predetermined period and the described pre-determined number.
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| CNA200810100248XA CN101583190A (en) | 2008-05-15 | 2008-05-15 | Method and system for determining position of user equipment |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102256367A (en) * | 2010-05-20 | 2011-11-23 | 普天信息技术研究院有限公司 | Scheduling method and device for reducing inter-cell interference |
| CN102256365A (en) * | 2010-05-20 | 2011-11-23 | 普天信息技术研究院有限公司 | Method and device for reducing inter-cell interference |
| CN103202075A (en) * | 2010-09-30 | 2013-07-10 | 诺基亚公司 | Positioning |
| CN103210599A (en) * | 2010-11-08 | 2013-07-17 | 三星电子株式会社 | Resource management system and method for inter-cell interference coordination in wireless communication system |
| CN103380637A (en) * | 2010-11-08 | 2013-10-30 | 株式会社Ntt都科摩 | Mobile terminal device, base station device, and communication control method |
| CN103856945A (en) * | 2014-02-28 | 2014-06-11 | 天津大学 | Uplink interference coordination method of LET-Advanced relay system |
| WO2017024520A1 (en) * | 2015-08-11 | 2017-02-16 | Telefonaktiebolaget Lm Ericsson (Publ) | Methods used in radio node and user equipment, and associated devices |
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| CN102256365A (en) * | 2010-05-20 | 2011-11-23 | 普天信息技术研究院有限公司 | Method and device for reducing inter-cell interference |
| CN102256367A (en) * | 2010-05-20 | 2011-11-23 | 普天信息技术研究院有限公司 | Scheduling method and device for reducing inter-cell interference |
| US9301089B2 (en) | 2010-09-30 | 2016-03-29 | Nokia Technologies Oy | Handling complex signal parameters by a positioning device, and apparatus |
| CN103202075A (en) * | 2010-09-30 | 2013-07-10 | 诺基亚公司 | Positioning |
| US9426619B2 (en) | 2010-09-30 | 2016-08-23 | Nokia Technologies Oy | Handling complex signal parameters by a positioning device, and apparatus |
| CN103202075B (en) * | 2010-09-30 | 2016-06-22 | 诺基亚技术有限公司 | Location |
| CN103210599B (en) * | 2010-11-08 | 2016-05-04 | 三星电子株式会社 | In wireless communication system for resource management system and the method for Inter-Cell Interference Coordination |
| US9226312B2 (en) | 2010-11-08 | 2015-12-29 | Samsung Electronics Co., Ltd. | Resource management system and method for inter-cell interference coordination in wireless communication system |
| CN103380637A (en) * | 2010-11-08 | 2013-10-30 | 株式会社Ntt都科摩 | Mobile terminal device, base station device, and communication control method |
| CN103210599A (en) * | 2010-11-08 | 2013-07-17 | 三星电子株式会社 | Resource management system and method for inter-cell interference coordination in wireless communication system |
| CN103380637B (en) * | 2010-11-08 | 2017-02-22 | 株式会社Ntt都科摩 | Mobile terminal device, base station device, and communication control method |
| CN103856945A (en) * | 2014-02-28 | 2014-06-11 | 天津大学 | Uplink interference coordination method of LET-Advanced relay system |
| CN103856945B (en) * | 2014-02-28 | 2017-08-11 | 天津大学 | The up-link interference coordination method of LTE Advanced relay systems |
| WO2017024520A1 (en) * | 2015-08-11 | 2017-02-16 | Telefonaktiebolaget Lm Ericsson (Publ) | Methods used in radio node and user equipment, and associated devices |
| US10425965B2 (en) | 2015-08-11 | 2019-09-24 | Telefonaktiebolaget Lm Ericsson (Publ) | Methods for random access in radio nodes and user equipment |
| US10624128B2 (en) | 2015-08-11 | 2020-04-14 | Telefonaktiebolaget Lm Ericsson (Publ) | Methods for random access in radio nodes and user equipment |
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Application publication date: 20091118 |