CN101583080B - Method, device and system for measuring regional signal - Google Patents
Method, device and system for measuring regional signal Download PDFInfo
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- CN101583080B CN101583080B CN2008100969607A CN200810096960A CN101583080B CN 101583080 B CN101583080 B CN 101583080B CN 2008100969607 A CN2008100969607 A CN 2008100969607A CN 200810096960 A CN200810096960 A CN 200810096960A CN 101583080 B CN101583080 B CN 101583080B
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- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
Abstract
The invention discloses a method, a device and a system for measuring regional signals. The method comprises the following steps: receiving a subdistrict identification code of a specific subdistrict sent by a service subdistrict by a terminal, measuring the unicast reference signals of the specific subdistrict according to the subdistrict identification code, and compounding the values of the reference signals sent in the mode of shared frequency network (SFN) according to the measured value of the unicast reference signals, thereby avoiding the problem of adding terminal complexity due to massive information consumption caused by notifying terminal target subframe distribution when measuring the intensity of the reference signals sent in an SFN mode by the terminal, and also avoiding theproblems of overlong measuring periods and terminal power consumption increase caused by sparse target subframe distribution.
Description
Technical field
The present invention relates to the mobile communication technology field, relate in particular to method, the Apparatus and system of measured zone signal.
Background technology
Along with the progress of society and the development of technology, the user wishes to use the demand of multimedia service obvious day by day whenever and wherever possible by the mobile network, and how accurately the measured zone signal just becomes one of key issue that influences quality of service.
The third generation organizes the partner to plan (3GPP, Third Generation Partnership Projects) in 2005, started the third generation (3G, 3rd Generation) Long Term Evolution research project (LTE, Long Term Evolution), access technology (E-UTRA with evolution, Evolved Universal Terrestrial Radio Access) and access network (E-UTRAN, Evolved Universal Terrestrial Radio Access Network), provide better support for operator and the ever-increasing demand of terminal.
In the LTE system, the downlink communication business can be divided into two big classes, unicast service (Unicast service) and multimedia broadcast-multicast service (MBMS, Multimedia Broadcast Multicast Service).Unicast service is a data source sends some business to any from data a to terminal, as traditional traffic business.The MBMS business is meant that a data source sends some business to multiple spot of data to a plurality of terminals, as mobile TV service.The introducing of MBMS business is in order to realize network (comprising core net and Access Network) resource-sharing, with the service of the least possible resource realization to the multimedia terminal of same requirements as much as possible.At wireless access network, MBMS is professional can to realize the classes of messages multicast and the broadcasting of plain text low rate by using the carrying of Common transport channel and public wireless, also can realize the multicast and the broadcasting of the multimedia service of higher rate (256kbps).
Under traditional transmission means, a sub-district sends business to the terminal in the sub-district, is called single cell transmission (Single-cell transmission) mode, and unicast service adopts single cell transmission mode usually.The MBMS business can adopt single cell transmission, also can adopt many cell transmission, when the MBMS business is adopted single cell transmission, adopt the mode that a bit arrives multiple spot usually, be called SC-PTM (Single-cell Point To Multipoint transmission) mode.When the professional employing of MBMS many cell transmission (Multi-cell transmission) mode, a plurality of sub-districts are simultaneously with the mode that sends the MBMS business frequently with content, cry again with frequency net (SFN, Single Rrequency Network) mode, simultaneously with frequently with content send the zone of one group of sub-district of MBMS business forming be called with web area frequently (SFA, SFNArea).A sub-district can participate in forming a plurality of different same frequency web areas.
The MBMS business can be used same carrier wave jointly with unicast service, and promptly MC (Mixed Carrier) pattern also can independently be used an independently carrier wave, i.e. DC (Dedicated Carrier) pattern.Under the situation of MC pattern, MBMS business (MBSFN business) time division multiplexing that unicast service, the MBMS business that sends in single sub-district mode and SFN mode send.According to the decision of 3GPP meeting, these two kinds of business are that subframe (subframe) level is time-multiplexed, i.e. a subframe or be used for unicast service and the professional transmission of uni-cell MBMS, or be used for the professional transmission of MBSFN.The subframe that is used for the professional transmission of unicast service and uni-cell MBMS is called unicast sub, and the subframe that is used for the professional transmission of MBSFN is called the MBSFN subframe, as shown in Figure 1.According to 3GPP meeting decision, use the distribution of high-level signaling informing MBSFN subframe, all the other subframes are unicast sub.
In same sub-district, the business that sends at different SFA also is that sub-frame level is time-multiplexed, and promptly same subframe can only be sent the business from a SFA, as shown in Figure 2.
When the user was in cell edge, the user need measure the signal of Serving cell and neighbor cell, and to determine to stay Serving cell, still switching or gravity treatment are to neighbor cell.When the user received only unicast service, the user measured the signal that single sub-district mode of Serving cell and neighbor cell sends, and particularly, measured the intensity (RSRP) of clean culture reference signal.According to the agreement regulation, in the LTE system, Serving cell is not broadcasted the identification code of adjacent co-frequency cell, the identification code and the reference signal of user's blind Detecting neighbor cell.
And when the user received the MBMS business, the situation that the user need elect between SC-PTM send mode and SFN send mode may appear.As shown in Figure 3, the user who receives the MBMS business is in cell edge, and this business sends in the SC-PTM mode in a side sub-district, send in the SFA mode in the opposite side sub-district, and the opposite side sub-district is the situation of MC pattern.The user will measure the signal of sub-district, both sides in two kinds of cell edges.According to prior art, the user only measures the signal that single sub-district mode sends, and then the signal of the MBMS business that can send the SFN mode usually causes and underestimates, thereby influence is switched and the judgement of gravity treatment, reduces user's receptivity, also may cause call drop in the time of seriously.
The method of prior art is when the user receives the MBMS business, allows the user to measure the reference signal strength (MRSRP) that the SFN mode sends, for switching and gravity treatment usefulness.The MBMS business that described reference signal and user receive is from same SFA.
The inventor finds under study for action, the user will measure the reference signal strength that the SFN mode sends, just need learn the distribution of the subframe at the reference signal strength place that the SFN mode sends, and just need rolling up this sub-district signaling, the distribution that will learn the subframe at the reference signal strength place that the SFN mode sends notifies, perhaps allow the user to read adjacent sub-district signaling, increase user's complexity.The distribution of these subframes may be very sparse in addition, can increase measuring period, increases user's power consumption.
Summary of the invention
In view of this, the purpose of the embodiment of the invention is to provide the mthods, systems and devices of realizing the measured zone signal, so that the user is not needing to increase this sub-district signaling, need not read the value of measuring the reference signal that the SFN mode sends under the situation of adjacent sub-district signaling.
For achieving the above object, the embodiment of the invention provides following technical scheme:
A kind of method of measured zone signal, this method comprises:
Receive the cell ID of the specific cell of Serving cell transmission; Described specific cell is specially: adjacent with Serving cell, and one or more sub-district in the same frequency web area SFA of transmission target multimedia broadcasting and multicast MBMS business;
Measure the clean culture reference signal of described specific cell according to described cell ID;
According to the measured value of described clean culture reference signal, synthetic with the value of netting the reference signal that the SFN mode sends frequently.
A kind of terminal of measured zone signal comprises:
Receiving element is used to receive the cell ID of specific cell; Described specific cell is specially one or more sub-district in the SFA that sends target MBMS business;
Measuring unit is used to measure the clean culture reference signal of cell ID institute respective cell;
Synthesis unit is used for the value of reference signal that the synthetic SFN mode of the measured value of clean culture reference signal is sent.
A kind of system of measured zone signal comprises:
Network equipment is used to notify the cell ID of terminal specific cell; Described specific cell is specially one or more sub-district in the SFA that sends target MBMS business;
Terminal is used to measure the clean culture reference signal of cell ID institute respective cell, and the value of the reference signal that the synthetic SFN mode of the measured value of clean culture reference signal is sent.
As seen, in embodiments of the present invention, the cell ID that Serving cell will send one or more sub-district in the SFA of target MBMS business is notified to terminal, terminal is measured the clean culture reference signal of the pairing sub-district of cell ID, and then utilize the measured value of these clean culture reference signals, the value of the reference signal that synthetic SFN mode sends, thereby the value that the synthetic SFN mode of the measured value that utilizes the clean culture reference signal sends, a large amount of signalings of having avoided notice end objectives subframe distribution and need having expended, increase the problem of terminal complexity, also avoid because target-subframe distributes when sparse caused measuring period long, increased the problem of terminal power consumption.
Description of drawings
Fig. 1 is the MC pattern, the multiplexing schematic diagram of MBSFN subframe and unicast sub;
Fig. 2 is the MC pattern, from the multiplexing schematic diagram of MBSFN subframe and the unicast sub of different SFA;
Fig. 3 is the schematic diagram that SC-PTM and MBSFN switch a scene of gravity treatment;
Fig. 4 is the flow chart of the method that one embodiment of the invention provided;
Fig. 5 is the structural representation of the device that one embodiment of the invention provided;
Fig. 6 is the structural representation of the device that further embodiment of this invention provided;
Fig. 7 is the structural representation of the device that further embodiment of this invention provided;
Fig. 8 is the structural representation of the system that one embodiment of the invention provided.
Embodiment
The embodiment of the invention provides the method for measured zone signal, and system and device are described in detail the embodiment of the invention below in conjunction with accompanying drawing.
Referring to accompanying drawing 4, in an embodiment of the present invention, realize that the method that the embodiment of the invention provided may further comprise the steps:
Step 401: the cell ID that receives the specific cell of Serving cell transmission;
Described specific cell specifically comprises one or more sub-district in the SFA that sends target MBMS business.
Described Serving cell is a sub-district that sends described target MBMS business with single sub-district form normally.
If have a plurality of SFA around the described Serving cell, then need the notice of the cell ID in one or more SFA terminal.
The concrete form of described notice can be a high-level signaling, can send on the professional corresponding control channel MCCH channel of described MBMS.
Preferably, one or more sub-district in the described SFA, can be end when Serving cell, all sub-districts in can detected SFA.
Preferably, one or more sub-district in the described SFA can be the sub-district adjacent with Serving cell.
Preferably, one or more sub-district in the described SFA can be one or more sub-district that Serving cell is had the greatest impact.The concrete implication of described one or more sub-district that has the greatest impact is the shortest sub-district of equivalent distances after having considered problems such as transmitting power, path loss.
Step 402: the clean culture reference signal of measuring specific cell according to described cell ID;
Preferably, can measure the intensity (RSRP) of clean culture reference signal.
All can send the reference signal (Reference Signal is called pilot tone Pilot again) of some in each subframe.In a plurality of symbols of unicast sub and in preceding 1 or preceding 2 symbols of MBSFN subframe, the base station can send the clean culture reference signal.The clean culture reference signal is different because of cell ID, is called the signal of sub-district peculiar (cell-specific).In the MBSFN subframe, the base station that belongs to same SFA zone sends identical MBSFN reference signal on identical running time-frequency resource, and the MBSFN reference signal that terminal receives is the superposed signal of a plurality of signals.The MBSFN reference signal is different because of the SFA zone, is called the signal of SFA peculiar (SFA-specific).
Existing method is exactly direct measurement MBSFN reference signal, and the value that obtains is the base station that belongs to same SFA zone sends identical MBSFN reference signal on identical running time-frequency resource a superposed signal.Directly measure the MBSFN reference signal, terminal need be learnt the subframe distribution of target MBMS business, and this just need roll up this sub-district signaling notifies, and perhaps allows terminal to read adjacent sub-district signaling, increases terminal complexity.
The distribution of these subframes may be very sparse in addition, can increase measuring period, increases the terminal power consumption.
Between clean culture reference signal that same sub-district sends and the MBSFN reference signal fixing relation is arranged, for example both power equate, fixing difference power is perhaps arranged.
Preferably, described fixed relationship is predesignated.
According to the agreement regulation, in the LTE system, Serving cell is not broadcasted the identification code of adjacent co-frequency cell, the identification code and the reference signal of terminal blind Detecting neighbor cell.
So, if do not know the identification code of sub-district in the SFA of target MBMS business, identification code and reference signal that terminal can only the blind Detecting neighbor cell, and do not know which is relevant with target service and participation SFN send mode.After one or more sub-district in the SFA of Serving cell notice end objectives MBMS business sent the cell ID of described sub-district, terminal just can be distinguished the clean culture reference signal in the sub-district that the SFN mode sends target MBMS business from numerous clean culture reference signals.
Step 403: according to the measured value of described clean culture reference signal, the value of the reference signal that synthetic SFN mode sends.
In terminal has been measured the SFA that sends target MBMS business after the clean culture reference signal strength of sub-district, utilize the value of the reference signal that the synthetic SFN mode of measured value sends.
Described synthetic specific implementation method has a variety of, comprising:
Terminal selects one or more measured values to synthesize from measured value.
Preferably, one or more measured values that can the selective value maximum synthesize.
When only utilizing a clean culture reference signal measured value to synthesize, can add the intensity of the signal that an adjustment amount sends as the SFN mode to the clean culture reference signal;
When utilizing a plurality of clean culture reference signal measured values to synthesize, a plurality of measured values that can add up, perhaps a plurality of measured values of weighted accumulation add adjustment amount after perhaps adding up, and perhaps add adjustment amount behind the weighted accumulation.
Preferably, before step 403, also comprise:
Terminal receives the weights of Serving cell transmission or/and adjustment amount;
Perhaps, terminal self is being stored weights or/and adjustment amount.
Here cited synthetic method is some examples, and synthetic method can not be exhaustive, and the embodiment of the invention is not limited by concrete synthetic method, and the synthetic method that adopts other in actual applications is not that the embodiment of the invention limits.
Embodiment is corresponding with method, and referring to accompanying drawing 5, the embodiment of the invention provides a kind of terminal of measured zone signal, and this terminal comprises:
Receiving element 501 is used to receive the cell ID of specific cell;
Described specific cell specifically comprises one or more sub-district in the SFA that sends target MBMS business;
Measuring unit 502 is used to measure the clean culture reference signal of cell ID institute respective cell;
Synthesis unit 503 is used for the value of reference signal that the synthetic SFN mode of the measured value of clean culture reference signal is sent.
Wherein, different algorithms can be adopted in the synthesis unit 503, different parameters can be adopted in each algorithm.
Preferably, when only measuring a clean culture reference signal, can add the intensity of the signal that an adjustment amount sends as the SFN mode to the clean culture reference signal.
Preferably, the specific implementation of synthesis unit 503 is:
First synthesis unit is used for the measured value of clean culture reference signal is added up, the reference that accumulated value is sent as the SFN mode;
Perhaps, second synthesis unit is used to utilize the measured value weighted accumulation of weight coefficient to the clean culture reference signal, the reference that accumulated value is sent as the SFN mode;
Perhaps, the 3rd synthesis unit is adjusted after being used to utilize adjustment amount that the measured value of clean culture reference signal is added up, the value of the reference signal that adjusted value is sent as the SFN mode.
Preferably, described second synthesis unit also comprises:
The parameter receiver module is used to receive the weight coefficient that Serving cell sends;
Perhaps, parameter memory module is used to store weight coefficient.
Preferably, described the 3rd synthesis unit also comprises:
The parameter receiver module is used to receive Serving cell and sends adjustment amount;
Perhaps, parameter memory module is used to store adjustment amount.
Be that second synthesis unit is an example with the synthesis unit in this device below, the embodiment of the invention is described in detail, see Fig. 6, this device comprises receiving element 601, measuring unit 602 and second synthesis unit 603, wherein, second synthesis unit 603 also comprises parameter memory module 6031 or parameter receiver module 6032.
When comprise in second synthesis unit 603 be parameter memory module 6031 time, the workflow of this device is: the cell ID of one or more sub-district in the SFA of the transmission target MBMS business that receiving element 601 reception Serving cells send, measuring unit 602 is measured the clean culture reference of identification code corresponding district according to cell ID, synthesis unit 603 utilizes the weight coefficient of parameter memory module 6031 storages, the measured value of measuring unit 602 is weighted adds up, the value of the reference signal that the value that obtains adding up sends as the SFN mode.
When comprise in second synthesis unit 603 be parameter receiver module 6032 time, referring to Fig. 7, the workflow of this device is: the cell ID of one or more sub-district in the SFA of the transmission target MBMS business that receiving element 601 reception Serving cells send, measuring unit 602 is measured the clean culture reference of identification code corresponding district according to cell ID, synthesis unit 603 utilizes parameter receiver module 6032 to receive the weight coefficient that Serving cell sends, the measured value of measuring unit 602 is weighted adds up, the value of the reference signal that the value that obtains adding up sends as the SFN mode.
Embodiment is corresponding with method, and referring to Fig. 8, the present invention also provides a kind of system of measured zone signal, comprising:
Described specific cell specifically comprises one or more sub-district in the SFA that sends target MBMS business.
The workflow of system shown in Figure 8 is:
After terminal 802 receives the cell ID of specific cell of network equipments 801 notices, measure the clean culture reference signal of cell ID institute respective cell, and the value of the reference signal that sends according to the synthetic SFN mode of the measured value that measures.
Wherein terminal 802 and network equipment 801 concrete structures such as Fig. 5, Figure 6 and Figure 7, this no longer is described in detail.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (12)
1. the method for a measured zone signal is characterized in that, this method comprises:
Receive the cell ID of the specific cell of Serving cell transmission; Described specific cell is specially: adjacent with Serving cell, and one or more sub-district in the same frequency web area SFA of transmission target multimedia broadcasting and multicast MBMS business;
Measure the clean culture reference signal of described specific cell according to described cell ID;
According to the measured value of described clean culture reference signal, synthetic with the value of netting the reference signal that the SFN mode sends frequently.
2. method according to claim 1 is characterized in that, described Serving cell is specially:
Send the sub-district of described target MBMS business with single sub-district form.
3. method according to claim 1 is characterized in that, when having the SFA of a plurality of described transmission target MBMS business, receives the cell ID of the one or more sub-districts in one or more SFA of described Serving cell notice.
4. method according to claim 1 is characterized in that, one or more sub-district in the described SFA comprises:
End is when Serving cell, and what described SFA was interior can be by detected all sub-districts of terminal;
Perhaps, the one or more sub-districts that in the described SFA Serving cell had the greatest impact.
5. method according to claim 1 is characterized in that, the specific implementation of measuring the clean culture reference signal of specific cell comprises:
Measure the intensity of described clean culture reference signal.
6. method according to claim 1, described synthetic be specially with the value of netting the reference signal that the SFN mode sends frequently:
Described measured value is added up the value of the reference signal that accumulated value is sent as the SFN mode;
Perhaps, the described measured value of weighted accumulation, the value of the reference signal that the value that obtains is sent as the SFN mode;
Perhaps, add adjustment amount after described measured value added up, with the value that obtains as with the value of netting the reference signal that the SFN mode sends frequently.
7. method according to claim 6 is characterized in that, when described measured value is one, and described synthetic being specially: described measured value is added adjustment amount.
8. according to claim 6 or 7 any described methods, it is characterized in that, to before the measured value weighting or adding adjustment amount, also comprise:
Terminal receives the weights of Serving cell transmission or/and adjustment amount;
Perhaps, terminal self is being stored weights or/and modulation voltage.
9. method according to claim 1, according to the measured value of described clean culture reference signal, synthetic also to comprise with the value of netting the reference signal that the SFN mode sends frequently:
Select one or more measured values, synthetic with the value of netting the reference signal that the SFN mode sends frequently.
10. the terminal of a measured zone signal is characterized in that, comprising:
Receiving element is used to receive the cell ID of specific cell; Described specific cell is specially one or more sub-district in the SFA that sends target MBMS business;
Measuring unit is used to measure the clean culture reference signal of cell ID institute respective cell;
Synthesis unit is used for the value of reference signal that the synthetic SFN mode of the measured value of clean culture reference signal is sent.
11. terminal according to claim 10 is characterized in that, described synthesis unit is specially:
First synthesis unit is used for the measured value of clean culture reference signal is added up, the value of the reference signal that accumulated value is sent as the SFN mode;
Perhaps, second synthesis unit is used to utilize the measured value weighted accumulation of weight coefficient to the clean culture reference signal, the value of the reference signal that accumulation result is sent as the SFN mode;
Perhaps, the 3rd synthesis unit is used to utilize adjustment amount to the measured value of the clean culture reference signal back adjustment of adding up, the value of the reference signal that adjusted value is sent as the SFN mode.
12. the system of a measured zone signal is characterized in that, comprising:
Network equipment is used to notify the cell ID of terminal specific cell; Described specific cell is specially one or more sub-district in the SFA that sends target MBMS business;
Terminal is used to measure the clean culture reference signal of cell ID institute respective cell, and the value of the reference signal that the synthetic SFN mode of the measured value of clean culture reference signal is sent.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100969607A CN101583080B (en) | 2008-05-12 | 2008-05-12 | Method, device and system for measuring regional signal |
| PCT/CN2009/071742 WO2009138023A1 (en) | 2008-05-12 | 2009-05-12 | Method, device and system for measuring area signals |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008100969607A CN101583080B (en) | 2008-05-12 | 2008-05-12 | Method, device and system for measuring regional signal |
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| CN101583080B true CN101583080B (en) | 2011-08-10 |
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| WO2010121426A1 (en) | 2009-04-23 | 2010-10-28 | 华为技术有限公司 | Method and equipment for informing use of sub-frames, method and equipment for processing sub-frames |
| GB2482183B (en) * | 2010-07-23 | 2013-03-27 | Sca Ipla Holdings Inc | Cellular communication system, communication units, and method for broadcast and unicast communication |
| CN105075333B (en) | 2014-02-24 | 2019-12-06 | 华为技术有限公司 | User equipment and method for guaranteeing continuous receiving of service in wireless network |
| WO2015133737A1 (en) | 2014-03-07 | 2015-09-11 | 엘지전자 주식회사 | Method for receiving discovery reference signal by terminal in wireless communication system and device therefor |
| CN106211021A (en) * | 2015-05-06 | 2016-12-07 | 北京信威通信技术股份有限公司 | A kind of pilot design method in radio communication |
| CN107888255B (en) | 2016-09-30 | 2023-07-14 | 中兴通讯股份有限公司 | Method, device and system for sending uplink reference signals, base station and terminal |
| CN112312463A (en) * | 2019-07-31 | 2021-02-02 | 华为技术有限公司 | Method and device for reporting channel state information |
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| CN1825992A (en) * | 2005-02-24 | 2006-08-30 | 大唐移动通信设备有限公司 | Method for measuring adjacent cell |
| CN1863355A (en) * | 2006-06-26 | 2006-11-15 | 北京天碁科技有限公司 | TD SCDMA terminal and cell searching method under common-frequency network |
| CN1984430A (en) * | 2005-11-04 | 2007-06-20 | 阿尔卡特公司 | Method, base station, mobile terminal, device and network of automatic resource restricted assignment |
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| US7603093B2 (en) * | 2005-12-14 | 2009-10-13 | Adc Telecommunications, Inc. | System and method to monitor broadband radio frequency transport systems |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1825992A (en) * | 2005-02-24 | 2006-08-30 | 大唐移动通信设备有限公司 | Method for measuring adjacent cell |
| CN1984430A (en) * | 2005-11-04 | 2007-06-20 | 阿尔卡特公司 | Method, base station, mobile terminal, device and network of automatic resource restricted assignment |
| CN1863355A (en) * | 2006-06-26 | 2006-11-15 | 北京天碁科技有限公司 | TD SCDMA terminal and cell searching method under common-frequency network |
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Application publication date: 20091118 Assignee: Apple Computer, Inc. Assignor: Huawei Technologies Co., Ltd. Contract record no.: 2015990000755 Denomination of invention: Method, device and system for measuring regional signal Granted publication date: 20110810 License type: Common License Record date: 20150827 |
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