CN101998417A - Method, system and device for improving network coverage performance - Google Patents
Method, system and device for improving network coverage performance Download PDFInfo
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Abstract
The embodiment of the invention discloses a method, a system and a device for improving network coverage performance. The method comprises the following steps: UE (User Equipment) judges whether the UE is not scheduled by a network side in a time interval with the preset duration after SR (Scheduling Requiring) information is sent to the network side or after the SR information is sent to the network side for the preset number of times; if so, the UE records relevant information of events unscheduled by the network side and reports the relevant information to the network side; and the network side regulates an uplink channel, used by the UE for sending the SR information, according to the relevant information for improving the coverage performance of the uplink channel. When in use, the invention can obtain the network coverage performance information without investing a large amount of labor and time so as to improve the network coverage performance according to the information.
Description
Technical field
The present invention relates to the mobile communication technology field, relate in particular to a kind of mthods, systems and devices that improve network coverage performance.
Background technology
In order to guarantee the network coverage performance of mobile communication system, usually need the network coverage performance of checking that communication network is current, so that adjust communication system, thereby obtain better network coverage performance according to current network coverage performance.
At present, adopt the mode of drive test to check the communication network covering performance usually.Particularly, network optimization personnel by specialty drive measurement car random walk, by measuring terminals event in the process of walking under the network optimization personnel record and some measuring amount, offer operator and use, so that improve network coverage performance for network optimization decision-making.
As seen, existing this road measuring method need manually obtain network coverage performance information, and the manpower of input and time cost are all bigger, brings very big burden for the networking and the maintenance cost of operator.On the other hand, because the mode of drive test can only be carried out out of doors, can't carry out in indoor and some private area, the network coverage performance information in these places then can't obtain.
Summary of the invention
In view of this, the purpose of the embodiment of the invention is to provide a kind of mthods, systems and devices that improve network coverage performance, makes needn't to drop into great amount of manpower and the time can obtain network coverage performance information, thereby improves network coverage performance according to this information.
For achieving the above object, the technical scheme of the embodiment of the invention specifically is achieved in that
A kind of method that improves network coverage performance, this method comprises:
User equipment (UE) judges whether in the period that sends predetermined length after the dispatch request SR information to network side or send the SR information of predetermined number contents to network side after, this UE is not dispatched by network side, if, then UE writes down the relevant information of this incident of not dispatched by network side, and this relevant information is reported network side;
Network side is adjusted the up channel that UE is used to send SR information according to described relevant information, to improve the covering performance of this up channel.
A kind of system that improves network coverage performance, this system comprises UE and network equipment;
Described UE, judge whether in the period of predetermined length after network side sends SR information or send the SR information of predetermined number contents to network side after, this UE is not dispatched by network side, if, then UE writes down the relevant information of this incident of not dispatched by network side, and this relevant information is reported network equipment;
Described network equipment is adjusted the up channel that UE is used to send SR information according to described relevant information, to improve the covering performance of this up channel.
A kind of user equipment (UE), this UE comprises dispatch request module, information gathering module and reporting module;
Described dispatch request module judges whether that this UE is not dispatched by network side, if indicate to information gathering module transmission collection in the period of predetermined length after network side transmission SR information or send the SR information of predetermined number contents to network side after;
Described information gathering module is used to collect the relevant information of this incident of not dispatched by network side, and described relevant information is issued reporting module;
Described reporting module reports network equipment with described relevant information.
As seen from the above technical solution, UE is in the time period of predetermined length after network side sends SR information among the present invention, perhaps after network side sends the SR information of predetermined number contents, if also do not dispatched by network side, then the UE relevant information of will be not dispatched this incident by network side reports network side.Wherein, the time of described UE transmission SR information is grown or repeatedly sends SR information and still do not dispatched by network side, then might be not receive this SR information because be used to transmit the relatively poor network side that causes of up channel covering performance of SR information, network side can be adjusted described up channel according to the relevant information that UE reports, thereby improves the covering performance of this up channel.Particularly, network side can judge whether the covering of described up channel has problem according to the relevant information that UE reports, if then carry out described adjustment.Owing to report relevant information by UE among the present invention, therefore, needn't drop into great amount of manpower and time can obtain network coverage performance information, thereby improve network coverage performance according to this information, and, can obtain the network coverage performance information of indoor and private area, thereby improve the network coverage performance of indoor and private area.
Description of drawings
Fig. 1 is the mapping relations figure that descending transmission channel arrives physical channel in Long Term Evolution (LTE) system;
Fig. 2 is the mapping relations figure that uplink transport channel arrives physical channel in the LTE system;
Fig. 3 is the method flow diagram of raising network coverage performance provided by the invention;
Fig. 4 is that capacity provided by the invention and coverage optimization (CCO) module utilize information that UE reports to optimize the method schematic diagram of network quality;
Fig. 5 is that the system of raising network coverage performance provided by the invention forms schematic diagram;
Fig. 6 is the structure drawing of device of raising network coverage performance provided by the invention.
Embodiment
For making purpose of the present invention, technical scheme and advantage clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, the present invention is described in more detail.
The present invention can be applied in the multiple mobile communication system, and in different mobile communication system, the difference of using concrete grammar of the present invention is, is used to send the up channel difference of SR information.Be example with the LTE system below, the present invention is described in detail.
Fig. 1 is the mapping relations figure that descending transmission channel arrives physical channel in the LTE system.
As shown in Figure 1, descending transmission channel BCH and Physical Broadcast Channel (Physical broadcastchannel, PBCH) correspondence, descending transmission channel MCH and Physical Multicast Channel (Physical multicastchannel, PMCH) corresponding, descending transmission channel PCH and DL-SCH all with DSCH Downlink Shared Channel (Physical downlink shared channel, PDSCH) correspondence.
Fig. 2 is the mapping relations figure that uplink transport channel arrives physical channel in the LTE system.
As shown in Figure 2, uplink transport channel UL-SCH and physical channel Physical Uplink Shared Channel (Physical uplink shared channel, PUSCH) correspondence, uplink transport channel RACH and Physical Random Access Channel (Physical random access channel, PRACH) correspondence.
PBCH wherein is used for carrying the mib information of broadcast, Physical Control Format Indicator Channel (Physical control format indicator channel, PCFICH) be used to refer to and have several OFDM symbols to use in each subframe (to refer to PCFICH in the subframe here for down control channel, PDCCH, the OFDM symbolic number that PHICH takies), Physical Downlink Control Channel (Physicaldownlink control channel, PDCCH) be used to indicate the running time-frequency resource of PDSCH or PUSCH, information such as coded system, (Physical Hybrid ARQIndicator Channel PHICH) is used to carry the descending HARQ feedback information of uplink to the physical mixed automatic re-transmission indicating channel.Physical channel in the LTE system also comprises: PDSCH, PMCH, be used to carry upward HARQ feedback information, dispatch request (SR) information and the CQI report information of downlink transfer Physical Uplink Control Channel (Physical uplink control channel, PUCCH), PUSCH and PRACH.
At present, for the UE that is in up connection status, uplink scheduling (SR) resource can be distributed for this UE in the base station, if UE has upstream data to need to send, but be not assigned to corresponding ascending resource, then UE will send the uplink scheduling request to the base station by this SR resource, the corresponding ascending resource of request base station assigns.Usually, this SR resource is by specific up channel carrying, and for example, in the LTE system, this SR resource is promptly specially by the PUCCH channel bearing.
As seen, if it is relatively poor to be used to send the up channel covering performance of SR information, the SR information that then may cause UE to send can't arrive the base station, and then this UE can influence the upstream data transmission of UE by base station scheduling.At present, can only check whether normal the upstream data of UE sends by the mode of drive test, and whether be because the up channel covering performance relatively poor UE upstream data that cause can't normally send, be unfavorable for determining that the upstream data of taking which kind of measure to improve UE sends performance if also can't judge.
The present invention is directed to and cause the base station can't normal consistency UE owing to the up channel covering performance is relatively poor, the upstream data that influences UE sends the situation of performance, has provided corresponding scheme.
Among the present invention, UE is in the time period of predetermined length after the base station sends SR information or after the base station sends SR information pre-determined number, if this UE is not by base station scheduling, then this UE writes down this not by the relevant information of the incident of base station scheduling, and this relevant information reported the base station, the base station judges whether it is the covering problem of up channel according to this relevant information, if, thereby then adjust the covering performance that this up channel improves this up channel.Usually carry the described temporal information that is not taken place in this relevant information by the incident of base station scheduling, for example, UE sends the moment of SR information, whether the base station inquiry receives the SR information of UE in the corresponding time, if receive this SR information, then judge it is not the covering problem of up channel, otherwise judge it is the covering problem of up channel.
Wherein, can to be UE be scheduled in the time period at predetermined length after the base station sends 1 SR information UE not being scheduled in the time period that sends predetermined length after the SR information to the base station, can be that UE is not scheduled in the time period at predetermined length after the base station sends repeatedly SR information yet.
The present invention is described in detail below in conjunction with Fig. 3.
Fig. 3 is the method flow diagram of raising up channel covering performance provided by the invention, and as shown in Figure 3, this method comprises:
In this step, UE can send SR information 1 time to the base station, also can send repeatedly SR information to the base station.
In this step, described predetermined length and pre-determined number can be pre-configured according to network operation situation by network planning designer.
In this step, the information of UE record comprises: the positional information at UE place and/or this turkey took place when the radio environment measurements information of UE and/or this UE place cell ID and/or scheduling turkey (promptly this UE is not by the incident of base station scheduling) took place timestamp information and/or failure cause information.
Radio environment measurements information wherein for example can be the wireless signal that measures in the time period of described predetermined length or when sending the SR information of described predetermined number contents of UE and/or the information of channel quality, such as pilot signal quality, reference symbol signal quality etc.
The sign of this sub-district, UE place when UE writes down this incident failure generation, this sign can be physical-layer cell identifier PCI.
If UE possesses the ability of the positional information obtained, the positional information at this UE place when then UE writes down this turkey generation.
Wherein the timestamp information of this turkey generation for example can be UE sends the moment from SR information to the base station.
In this step, UE reports the information of described record according to the pre-configured mode that reports to network side.For example, UE carries out reporting described information after RRC connects in the sub-district that this turkey takes place; Perhaps, UE reports described information after moving to other sub-districts; Perhaps, UE reports based on absolute time, and the 23:00 that for example is fixed on every day reports; Perhaps UE reports based on the internal memory situation, for example has 80% and report when occupied in UE.
In this step, the timestamp information in the relevant information that network side can report according to UE judges whether it is the covering problem of up channel.Particularly, the base station can search at this timestamp information whether received the SR information of UE in the base station in the corresponding period, if then judge it is not the covering problem of up channel, otherwise judge it is the problem that up channel covers.
In this step, can report to the information of network side by network planning designer according to UE, the position relatively poor at the up channel covering performance increases the base station, perhaps adjust parameters such as antenna direction, angle according to described information by the base station of network side, perhaps improve the upward signal receiving ability, in a word, network side can take multiple measure according to described information up channel to be optimized adjustment.
Be example with CCO below, illustrate that the information how network side utilizes UE to report improves network quality.
Operator thinks that the CCO module is a kind of infrastructure, is used for communication network is adjusted at a slow speed and/or optimized.The CCO module is different with the framework that mobile robustness optimization (MRO) module, moving load equilibrium (MLB) module and RACH optimize the employing of (RO) module, MRO module, MLB module and RO module adopt distributed structure/architecture usually, and the CCO module adopts centralized architecture or hybrid framework usually.
CCO module with hybrid framework is an example below, illustrates that this CCO module is that information how to utilize UE to report is optimized network quality.Specifically see also Fig. 4.
Fig. 4 is that CCO module provided by the invention utilizes information that UE reports to optimize the method schematic diagram of network quality, and as shown in Figure 4, this method possesses and comprises:
Step 1, operator is by operation and maintenance (O﹠amp; M) module starts the CCO module, and CCO modules configured information perhaps is set.
In this step, operator can pass through O﹠amp; The M module started or closes certain functional modules in CCO module or the CCO module in specific time, for example, opened the module that is used to receive the information that UE reports in the CCO module by day, closed and be used for module that the respective physical channel is adjusted; Operator can also pass through O﹠amp; M module settings Event Policies makes when particular event is triggered, and starts or closes certain functional modules in CCO module or the CCO module.
Step 2: the base station receives the information that UE reports, and this information is issued the CCO module, and the problem detection module in the CCO module judges whether network performance has problem, if not, and process ends, if, execution in step 3.
Wherein, CCO module in the base station can be prenoticed UE and be started the measuring process of described relevant information to obtain described relevant information, can also the MRO module, collect relevant information in the correlation function module of network self-organization (SON) such as MLB module, RO module, be used to detect the relevant issues of the network coverage.
Step 3: the problem detection module is given O﹠amp with the problem escalation that network coverage performance exists; The M module is passed through O﹠amp; The M module is presented to operator with these problems.
Step 4: the problem detection module is issued the optimization decision-making module with detected problem.
Step 3 wherein and 4 sequencing are adjustable, the present invention are not exerted an influence.
Step 5: optimize decision-making module from O﹠amp; The M module is obtained optimisation strategy, and makes the optimization decision according to the optimisation strategy of obtaining.
Optimisation strategy in this step includes but not limited to: adjust antenna directional angle and angle of declination, adjust the respective physical channel transmitting power.
Step 6: the optimization decision-making module will be optimized decision and issue adjustment measure enforcement module.
Step 7: the adjustment measure is implemented module according to optimizing decision to O﹠amp; The M module sends the request of adjustment or adjusts suggestion.
Step 8:O﹠amp; The M module receives the request of adjustment or adjustment suggestion and represents to operator, the adjustment acknowledge message of operator is issued the adjustment measure implement module.
Step 7 wherein and 8 is used for adjusting channel according to the instruction of operator, and this step 7 and 8 also can be omitted, and promptly directly implements module by the adjustment measure and adjusts accordingly and need not inquire operator.
Step 9: the adjustment measure is implemented module and is adjusted accordingly according to described adjustment acknowledge message.
In this step, adjust adjacent cell parameter if desired, then the CCO module sends the relevant parameters optimization information by X2 interface to base station, place, adjacent sub-district, after parameter optimization is carried out in the base station of adjacent sub-district, replys confirmation to this CCO module.
According to above-mentioned method embodiment, provide corresponding system embodiment and device embodiment below, described system and described device all can adopt described method to improve network coverage performance.
Fig. 5 is that the system of raising network coverage performance provided by the invention forms schematic diagram, and as shown in Figure 5, this system comprises UE501 and network equipment 502.
UE501, judge whether in the period of predetermined length after network side sends SR information or send the SR information of predetermined number contents to network side after, this UE is not dispatched by network side, if, then UE writes down the relevant information of this incident of not dispatched by network side, and this relevant information is reported network equipment 502.
Relevant information wherein comprises: the radio environment measurements information of UE and/or this UE place cell ID and/or this UE position information and/or failure cause information.
Up channel wherein comprises the PUCCH channel.
Fig. 6 is the structure drawing of device of raising network coverage performance provided by the invention, and as shown in Figure 6, this device comprises dispatch request module 601, information gathering module 602 and reporting module 603.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention, all any modifications of being made within the spirit and principles in the present invention, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a method that improves network coverage performance is characterized in that, this method comprises:
User equipment (UE) judges whether in the period that sends predetermined length after the dispatch request SR information to network side or send the SR information of predetermined number contents to network side after, this UE is not dispatched by network side, if, then UE writes down the relevant information of this incident of not dispatched by network side, and this relevant information is reported network side;
Network side is adjusted the up channel that UE is used to send SR information according to described relevant information, to improve the covering performance of this up channel.
2. the method for claim 1 is characterized in that, described relevant information comprises: the radio environment measurements information of UE and/or this UE place cell ID and/or this UE position information and/or failure cause information.
3. method as claimed in claim 2 is characterized in that, described radio environment measurements information comprises the wireless signal that UE measures and/or the information of channel quality.
4. the method for claim 1 is characterized in that, describedly this relevant information is reported network side comprises:
UE the sub-district that this incident of not dispatched by network side takes place carry out radio resource control RRC connect back and/or the sub-district beyond this UE moves to the sub-district that this incident of not dispatched by network side takes place after and/or report described relevant information at preset time point and/or when the UE internal memory satisfies predetermined state.
5. the method for claim 1 is characterized in that, described up channel comprises Physical Uplink Control Channel PUCCH channel.
6. a system that improves network coverage performance is characterized in that, this system comprises UE and network equipment;
Described UE, judge whether in the period of predetermined length after network side sends SR information or send the SR information of predetermined number contents to network side after, this UE is not dispatched by network side, if, then UE writes down the relevant information of this incident of not dispatched by network side, and this relevant information is reported network equipment;
Described network equipment is adjusted the up channel that UE is used to send SR information according to described relevant information, to improve the covering performance of this up channel.
7. system as claimed in claim 6 is characterized in that, described relevant information comprises: the radio environment measurements information of UE and/or this UE place cell ID and/or this UE position information and/or failure cause information.
8. system as claimed in claim 6 is characterized in that described up channel comprises the PUCCH channel.
9. a user equipment (UE) is characterized in that, this UE comprises dispatch request module, information gathering module and reporting module;
Described dispatch request module judges whether that this UE is not dispatched by network side, if indicate to information gathering module transmission collection in the period of predetermined length after network side transmission SR information or send the SR information of predetermined number contents to network side after;
Described information gathering module is used to collect the relevant information of this incident of not dispatched by network side, and described relevant information is issued reporting module;
Described reporting module reports network equipment with described relevant information.
10. UE as claimed in claim 9 is characterized in that,
Described information gathering module, the radio environment measurements information and/or this UE place cell ID and/or this UE position information and/or the failure cause information that are used to collect this UE are issued reporting module with the information of collecting.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102131280A (en) * | 2010-01-12 | 2011-07-20 | 电信科学技术研究院 | Method and equipment for determining coverage condition of uplink channel and transmitting dedicated scheduling requests |
| CN106454890A (en) * | 2015-08-12 | 2017-02-22 | 北京三星通信技术研究有限公司 | Self-configuration self-optimization method, self-configuration self-optimization system, and self-configuration self-optimization device |
| CN107818133A (en) * | 2017-09-21 | 2018-03-20 | 北京市天元网络技术股份有限公司 | A kind of residential block network capabilities analysis method and system based on big data |
| CN111165054A (en) * | 2017-09-25 | 2020-05-15 | 瑞典爱立信有限公司 | User equipment, network node and method in a wireless communication network |
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| CN101330313A (en) * | 2007-06-19 | 2008-12-24 | 中兴通讯股份有限公司 | Method for requesting ascending scheduling in an LTE system |
| US20090046641A1 (en) * | 2007-08-13 | 2009-02-19 | Interdigital Patent Holdings, Inc. | Long term evolution medium access control procedures |
| KR101420879B1 (en) * | 2007-11-29 | 2014-07-17 | 엘지전자 주식회사 | Method for Transmitting Data regarding Scheduling Information |
| CN101489305B (en) * | 2008-01-17 | 2011-11-16 | 电信科学技术研究院 | Uplink data transmission method, communication system and apparatus |
| KR101531419B1 (en) * | 2008-02-01 | 2015-06-24 | 엘지전자 주식회사 | Method of an uplink harq operation at an expiry of time alignment timer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102131280A (en) * | 2010-01-12 | 2011-07-20 | 电信科学技术研究院 | Method and equipment for determining coverage condition of uplink channel and transmitting dedicated scheduling requests |
| CN102131280B (en) * | 2010-01-12 | 2013-11-06 | 电信科学技术研究院 | Method and equipment for determining coverage condition of uplink channel and transmitting dedicated scheduling requests |
| CN106454890A (en) * | 2015-08-12 | 2017-02-22 | 北京三星通信技术研究有限公司 | Self-configuration self-optimization method, self-configuration self-optimization system, and self-configuration self-optimization device |
| CN106454890B (en) * | 2015-08-12 | 2022-03-18 | 北京三星通信技术研究有限公司 | Self-configuration and self-optimization method, system and device |
| CN107818133A (en) * | 2017-09-21 | 2018-03-20 | 北京市天元网络技术股份有限公司 | A kind of residential block network capabilities analysis method and system based on big data |
| CN107818133B (en) * | 2017-09-21 | 2020-08-04 | 北京市天元网络技术股份有限公司 | Residential area network capacity analysis method and system based on big data |
| CN111165054A (en) * | 2017-09-25 | 2020-05-15 | 瑞典爱立信有限公司 | User equipment, network node and method in a wireless communication network |
| CN111165054B (en) * | 2017-09-25 | 2023-08-18 | 瑞典爱立信有限公司 | User equipment, network node and method in a wireless communication network |
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