CN106572478A - Wireless grid building method and base station - Google Patents

Wireless grid building method and base station Download PDF

Info

Publication number
CN106572478A
CN106572478A CN201611001288.XA CN201611001288A CN106572478A CN 106572478 A CN106572478 A CN 106572478A CN 201611001288 A CN201611001288 A CN 201611001288A CN 106572478 A CN106572478 A CN 106572478A
Authority
CN
China
Prior art keywords
srs
base station
target
power
sends
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201611001288.XA
Other languages
Chinese (zh)
Other versions
CN106572478B (en
Inventor
黄黎
张�浩
孙铭扬
杨迥迥
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Shanghai Huawei Technologies Co Ltd
Original Assignee
Shanghai Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Huawei Technologies Co Ltd filed Critical Shanghai Huawei Technologies Co Ltd
Priority to CN201611001288.XA priority Critical patent/CN106572478B/en
Publication of CN106572478A publication Critical patent/CN106572478A/en
Priority to PCT/CN2017/102966 priority patent/WO2018086415A1/en
Application granted granted Critical
Publication of CN106572478B publication Critical patent/CN106572478B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the invention discloses a wireless grid building method comprising the following steps: a first base station measures a sensing reference signal SRS sent by target user equipment UE so as to obtain a first uplink reference signal reception power RSRP, wherein the target UE refers to the UE in a service community to which the first base station is located; the first base station obtains the first emission power of the target UE sending the SRS; the first base station calculates the first uplink path loss of the target UE sending the SRS according to the first emission power and the first uplink RSRP; the first base station receives second uplink path losses sent by adjacent base stations; the first base station builds the wireless grid according to the first and second uplink path losses. The base station has much stronger receive and measuring ability when compared with the UE; normally the information sent by single UE can be received by a plurality of surrounding base stations, so the base station can obtain the UE uplink path losses so as to build the wireless grid with more accuracy, thus improving UE location positioning.

Description

A kind of method of construction wireless grid and base station
Technical field
The present invention relates to the communications field, more particularly to a kind of method and the base station of construction wireless grid.
Background technology
Due to the popularization and mobile network's business development of smart mobile phone, Long Term Evolution (English full name：Long Term Evolution, english abbreviation：LTE) amount of communication data of wireless network (4G) is increasing, and single wireless frequency range can be provided Message capacity be limited, therefore, operator generally provides bigger message capacity by increasing more radio bands. Due to the different radio frequency range frequency difference of itself and deployment difference, the channel quality of same place different radio frequency range may Difference is huge, therefore, user equipment (English full name：User Equipment, english abbreviation：UE) need to measure each frequency range Channel quality.But, UE is constrained due to each side such as cost/power consumption/volumes, it is difficult to possess many frequency ranges of parallel measurement simultaneously Channel quality ability, it is common practice that several times, the channel quality of wheel flow measurement each frequency range.According to the protocol machine of LTE System, UE needs first to select a frequency range as main service frequency range, then goes to measure channel quality (the referred to as alien frequencies survey of other frequency ranges Amount).In order to do different-frequency measure, UE is needed ongoing communication disruption in main service frequency range for a period of time, during using this section Between go measure other frequency ranges, this be referred to as Gap measurement.In order to measure the channel quality of multiple alien frequencies frequency ranges, UE needs to carry out repeatedly Gap is measured.The current communication of Gap measurement meeting interruption Us E, the business experience for causing the reduction of UE message transmission rates, user becomes Difference；In turn Gap measurements also result in the measure the cycle of each frequency range and elongate multiband, and the validity of measurement result is deteriorated, and affects Upper-layer functionality (as AMC effects are deteriorated).
In order to solve the problem, a kind of existing technical scheme is：Allow on base station memory (preservations) diverse location, it is different frequently Section channel quality, when UE enter certain position after, can from memory each frequency range in the direct access position channel quality.The technology The concrete grammar of scheme is, in the incipient stage, allows UE that alien frequencies channel quality is surveyed by the measurement of out-of-date methods Gap, when UE is alien frequencies When channel measurement report is to base station, a process is increased newly：Base station obtains the position of UE, then different corresponding to the position Frequency measurement result is recorded.After a while, with increasing UE all carry out such Gap measurement results with The record of correspondence position, base station has just gradually formed a similar " position：The channel quality of frequency range 1, the channel matter of frequency range 2 The database of amount ..., the channel quality of frequency range n ", the database slowly increases, perfect, after having arrived certain hour, it is possible to The channel quality of each frequency range is all recorded on most positions that base station is serviced.For follow-up UE, it is possible to First determine the position of UE, then search corresponding record according in position to above-mentioned database, directly obtain different from record Channel quality of the frequency channel in the position, it is no longer necessary to which UE does Gap measurements.The determination of the position for UE, in prior art It is to go to measure downlink reference signal receiving power (the Reference Signal of Serving cell and neighbor cell by UE Received Power, english abbreviation：RSRP determined by the wireless grid for) being constructed.
In general, the descending RSRP numbers in adjacent area measured as UE are more, it is more accurate to the position positioning of UE, e.g., UE The descending RSRP of 3 cells can be measured, 3 circles typically intersect at only one intersection point.But, in real network, due to UE's Measurement capability and neighboring interval are interfered, in Serving cell/descending adjacent area number that the UE of near point position is measured is very limited, Cell RSRP number≤2 measured on cell a large portion region, wireless grid in this case can not be accurate UE is positioned.
The content of the invention
Method and the base station of a kind of construction wireless grid are embodiments provided, for improving determining for the position to UE Position.
First aspect present invention provides a kind of method of construction wireless grid, including：
First base station first receives the SRS that serviced target UE sends, then up by measuring SRS acquisitions first RSRP.First base station obtain again target UE send SRS the first transmission power, wherein, including target UE full power send and not Full power sends two kinds of situations.First base station after the first up RSRP and the first transmission power is got, then according to first Transmission power is calculated the first up path loss that target UE sends SRS with the first up RSRP.The phase of first base station and adjacent area Adjacent base station can share identical SRS resource so that first base station cell in the cell of adjacent base station in it is wireless Signal will not be interfered, while first base station receives target UE and sends SRS, the adjacent base station with first base station adjacent area The SRS that target UE sends is obtained, and measures the SRS then and obtain the second up RSRP, obtain the second transmission power, and counted The second up path loss is calculated.Second up path loss is then sent to by adjacent base station after the second up path loss is calculated One base station, first base station then constructs wireless grid according to the first up path loss and the second up path loss.In addition, adjacent base station is The neighbor base station of first base station, the neighbor base station of first base station generally comprises more than one, such as more including three or four The up path loss participated in obtained by the adjacent base station of measurement is more, so that the wireless grid that first base station is constructed is more smart It is accurate.So, due to base station reception and measurement capability it is more much larger than UE, the information that a general UE sends can be by more around Received by individual base station, therefore it is more accurate to obtain the wireless grid that the up path loss of UE constructed by base station, so as to carry The positioning of the high position to UE.
In a kind of possible implementation, first base station obtains first transmission power of target UE transmission SRS can be：
First base station first receives the PHR that target UE sends according to the cycle, is calculated UE further according to PHR and sends PHR's PUSCH uses power.First base station obtains objective emission power further according to PUSCH using power calculation, and with objective emission work( Rate sends first transmission power of SRS as target UE.
Because the cycle that target UE sends PHR can be arranged by first base station, therefore, within the shorter cycle, target The power control adjustment amount of UE is negligible, or, first base station arranges cycle and the transmission of target UE that target UE sends PHR The cycle of SRS is completely the same, so the next calculated objective emission power of PHR reported with target UE can be equivalent to target UE sends first transmission power of SRS.
In alternatively possible implementation, first base station obtains objective emission power according to PUSCH using power calculation, And included as the specific formula for calculation of first transmission power of target UE transmission SRS using objective emission power：
PSRS(i)=PSRS_OFFSET+10log10(MSRS)+Po_PUSCH(j)+PPUSCH(i')-(10log10(MPUSCH(i'))+ Po_PUSCH(j)+ΔTF(i'))
Wherein, i represents that target UE sends the subframe that SRS is used, and i' represents that target UE sends the subframe used during PHR, PSRSI () represents that target UE in subframe i sends first transmission power of SRS, PSRS_OFFSETRepresent the exclusive default ginseng of target UE Number, MSRSRepresent the transmission bandwidth of subframe i moment SRS, Po_PUSCHJ () represents the power control parameters of PUSCH channels, PPUSCH(i') table Show that PUSCH uses power, PPUSCH(i') value deducts the PHR, M for the maximum transmission power of target UEPUSCH(i') represent It is the resource size of PUSCH distribution, Δ in subframe i'TFI () to represent and send selected modulation methods according to the PUSCH of the i-th ' subframe The power adjustment that formula is determined.
In alternatively possible implementation, when the moment that the moment that target UE sends SRS sends PHR with target UE differs During sample, target UE sends first transmission power of SRS and is：
Objective emission power changes the transmission power knots modification sum for causing with power control parameters, and wherein objective emission power is UE sends the last time UE before SRS and sends the calculated power of PHR when institutes, and the transmission power that power control parameters change causes changes Measure the last UE recorded by first base station and send the transmitting work(that power control parameters change causes during PHR to UE sends SRS Rate knots modification.
When the cycle that first base station arranges target UE transmission PHR is long, and the period ratio that target UE sends SRS is shorter When, then target UE was sent in the time period of a PHR, and target UE may have sent multiple SRS, therefore can cause larger mistake Difference, in order to avoid the error, then first base station also needs the last time recorded plus first base station when transmission power is calculated UE sends the transmission power knots modification that power control parameters change causes during PHR to UE sends SRS, so as to reduce what is be likely to occur Error, improves the degree of accuracy for calculating the first transmission power.
Second aspect present invention provides a kind of method of construction wireless grid, including：
Adjacent base station is the base station of the adjacent area of first base station, for subsidiary and calculates the up path loss of target UE, first The SRS that target UE sends first is received, then the second up path loss is obtained by measuring the SRS.Adjacent base station obtains again target UE and sends out Second transmission power of SRS is sent, wherein, including target UE full power sends and full power does not send two kinds of situations.Adjacent base station After the second up RSRP and the second transmission power is got, then calculated according to the second transmission power RSRP up with second The second up path loss of SRS is sent to target UE.Second up path loss is sent to first base station by adjacent base station again, for first Base station is according to measured by first base station and calculated first up path loss is wireless with the second up path loss construction for receiving Grid.In addition, adjacent base station is the neighbor base station of first base station, the neighbor base station of first base station generally comprises more than one, than Such as include three or four, the up path loss obtained by the adjacent base stations for participating in measurement more more, so that first base station The wireless grid for being constructed is more accurate.So, due to base station reception and measurement capability it is more much larger than UE, a general UE The information of transmission received by multiple base stations around, therefore can obtain the nothing that the up path loss of UE is constructed by base station Wire grid is more accurate, so as to improve the positioning of the position to UE.
Third aspect present invention provides a kind of base station, including：
Acquiring unit, it is up that the detection reference signal SRS for being sent by measurement target UE UE obtains first Reference Signal Received Power RSRP, target UE is the UE in the Serving cell that base station is located；
Acquiring unit is additionally operable to, and obtains the first transmission power that target UE sends SRS；
Computing unit, for being calculated target UE sends SRS the according to the first transmission power and the first up RSRP One up path loss；
Receiving unit, for the second up path loss that receiving neighbor bs send, the second up path loss is adjacent base station root It is calculated according to the second up RSRP and the second transmission power, wherein, the second up RSRP is that adjacent base station measures target UE What the SRS of transmission was acquired, the second transmission power is the transmission power obtained by adjacent base station acquisition target UE transmission SRS；
Structural unit, for constructing wireless grid according to the first up path loss and the second up path loss.
Fourth aspect present invention provides a kind of base station, including：
Acquiring unit, it is up that the detection reference signal SRS for being sent by measurement target UE UE obtains first Reference Signal Received Power RSRP, target UE is the UE in the Serving cell that first base station is located；
Acquiring unit is additionally operable to, and obtains the second transmission power that target UE sends SRS；
Computing unit, for being calculated target UE sends SRS the according to the second transmission power and the second up RSRP Two up path losses；
Transmitting element, for the second up path loss to be sent to into first base station.
Fifth aspect present invention provides a kind of base station, and the base station includes：Processor, memory, transceiver, processor, deposit Reservoir and transceiver are connected by bus, and memory storage has computer instruction, and processor is used by computer instructions In realizing following method：
The detection reference signal SRS sent by measuring target UE UE obtains the first uplink reference signals and receives work( Rate RSRP, target UE is the UE in the Serving cell that base station is located；
Obtain the first transmission power that target UE sends SRS；
The first up path loss that target UE sends SRS is calculated according to the first transmission power and the first up RSRP；
The second up path loss that receiving neighbor bs send, the second up path loss is adjacent base station according to the second up RSRP And second transmission power be calculated, wherein, the second up RSRP be adjacent base station measure target UE send SRS obtain Arrive, the second transmission power is the transmission power obtained by adjacent base station acquisition target UE transmission SRS；
Wireless grid is constructed according to the first up path loss and the second up path loss.
Sixth aspect present invention provides a kind of base station, and the base station includes：Processor, memory, transceiver, processor, deposit Reservoir and transceiver are connected by bus, and memory storage has computer instruction, and processor is used by computer instructions In realizing following method：
The detection reference signal SRS sent by measuring target UE UE obtains the first uplink reference signals and receives work( Rate RSRP, target UE is the UE in the Serving cell that first base station is located；
Obtain the second transmission power that target UE sends SRS；
The second up path loss that target UE sends SRS is calculated according to the second transmission power and the second up RSRP；
Second up path loss is sent to into first base station.
Seventh aspect present invention provides a kind of storage medium, stores program code in the storage medium, the program code When being run, the construction wireless grid that first aspect or any one implementation of first aspect or second aspect are provided is performed Method.The storage medium includes but is not limited to flash memory (English：Flash memory), hard disk (English：hard disk Drive, referred to as：HDD) or solid state hard disc (English：Solid state drive, referred to as：SSD).
As can be seen from the above technical solutions, the embodiment of the present invention has advantages below：
In the present invention, first base station obtains first by the detection reference signal SRS that measurement target UE UE sends Uplink reference signals receiving power RSRP, target UE is the UE in the Serving cell that first base station is located, and first base station obtains mesh Mark UE sends first transmission power of SRS, and first base station is calculated target according to the first transmission power and the first up RSRP UE sends the first up path loss of SRS, the second up path loss that first base station receiving neighbor bs send, and the second up path loss is Adjacent base station is calculated according to the second up RSRP and the second transmission power, wherein, the second up RSRP is adjacent base station What the SRS that measurement target UE sends was acquired, the second transmission power is that adjacent base station is obtained obtained by target UE transmission SRS Transmission power, first base station constructs wireless grid according to the first up path loss and the second up path loss.So, due to base station Reception and measurement capability are more much larger than UE, the information that a general UE sends can received by multiple base stations around, because The wireless grid that this up path loss that UE is obtained by base station is constructed is more accurate, so as to improve determining for the position to UE Position.
Description of the drawings
Fig. 1 is an application system configuration diagram of the method that wireless grid is constructed in the embodiment of the present invention；
Fig. 2 is a schematic diagram of the method that wireless grid is constructed in the embodiment of the present invention；
Fig. 3 is the schematic diagram that target UE sends SRS and PHR in the embodiment of the present invention；
Fig. 4 is a schematic diagram of two tuple wireless grids of first base station construction in the embodiment of the present invention；
Fig. 5 is a schematic diagram of first base station in the embodiment of the present invention；
Fig. 6 is a schematic diagram of adjacent base station in the embodiment of the present invention；
Fig. 7 is another schematic diagram of first base station in the embodiment of the present invention；
Fig. 8 is another schematic diagram of adjacent base station in the embodiment of the present invention.
Specific embodiment
Method and the base station of a kind of construction wireless grid are embodiments provided, for improving determining for the position to UE Position.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.This Term " first ", " second ", " the 3rd ", " 4th " in bright specification and claims and above-mentioned accompanying drawing etc. is (if deposited ) it is object for distinguishing similar, without for describing specific order or precedence.It should be appreciated that so use Data can be exchanged in the appropriate case, so that the embodiments described herein can be with except the content for illustrating here or describe Order in addition is implemented.Additionally, term " comprising " and " having " and their any deformation, it is intended that cover non-exclusive Comprising for example, process, method, system, product or the equipment for containing series of steps or unit is not necessarily limited to clearly list Those steps or unit, but may include clearly not listing or intrinsic for these processes, method, product or equipment Other steps or unit.
With reference to shown in Fig. 1, Fig. 1 is the system architecture schematic diagram that wireless grid is constructed in present example, in the schematic diagram Including：One target UE, a first base station and four adjacent base stations, wherein first base station are the Serving cell of target UE Interior base station, four base stations are the base station in the adjacent cell of the Serving cell, and the first base station is with first base The all UE in cell that serviced cell of standing is serviced with adjacent base station are used as the UE in same virtual subdistrict so that described The shared detection ginsengs with portion cell-level of all UE in cell that the cell that first base station is serviced is serviced with adjacent base station Examine signal (English full name：Sounding Reference Signal, english abbreviation：SRS) resource, the first base station is institute Target UE distribution target SRS resource is stated, target UE sends SRS by the target SRS resource, and first base station is adjacent with four Base station each measurement SRS, so as to each get uplink reference signals receiving power (Reference Signal Received Power, english abbreviation：RSRP), first base station each obtains again target UE transmission and is somebody's turn to do with four adjacent base stations The transmission power of SRS, then the path loss that UE sends SRS is each calculated, four adjacent base stations are sent to calculated path loss First base station, first base station is further according to calculated path loss and the path loss construction wireless grid for receiving.
With reference to shown in Fig. 2, one embodiment of the method for wireless grid is constructed in the embodiment of the present invention to be included：
101st, first base station obtains the first up ginseng by the detection reference signal SRS that measurement target UE UE sends Signal reception power RSRP is examined, target UE is the UE in the Serving cell that the first base station is located.
In LTE frameworks, base station accurately obtains up RSRP by measuring the SRS of UE transmissions, when base station needs to obtain In the cell for being serviced during the channel quality of UE, need to position the position of UE, base station is carried out UE by wireless grid The positioning of position, first base station need to construct an accurate wireless grid, and UE can send according to certain cycle to base station SRS, base station then obtains up RSRP by measuring the SRS of UE transmissions, then up subsequently to be calculated by up RSRP Path loss and the step of construct wireless grid.Therefore in embodiments of the present invention, first base station needs to first pass through measurement target UE The SRS for sending obtains the first up RSRP.
In embodiments of the present invention, first base station construction wireless grid, not only needs first base station to calculate UE transmission SRS Up path loss, in addition it is also necessary to calculating the up path loss that the UE sends SRS, first base station passes through multiple up path losses to adjacent base station Wireless grid can just be constructed.Therefore, the SRS that target UE sends not only needs the first base station energy in the cell that target UE is located Receive, in addition it is also necessary to which the adjacent base station of neighbor cell also can be received.Because the SRS resource of each cell is all in cell What UE shared, base station can be SRS resource of each UE distribution sub-fraction as the UE, in order to reduce the signal phase between cell The very few problem of the adjacent base station of the mutually problem of interference, and measurement SRS, optionally, in embodiments of the present invention, described first The all UE in cell that base station is serviced using the cell that the first base station is serviced with adjacent base station are used as same virtual little UE in area so that all UE in the cell that the cell that the first base station is serviced is serviced with adjacent base station share same The SRS resource of part cell-level.So, multiple cells (call cooperation measurement of the adjacent area of cooperation measurement each other in a small region Cell Group) in all UE regard shared with portion cell-level SRS resource as, for UE distribution SRS resources when, not only Ensure that SRS resource does not conflict between the UE in cell, and ensure SRS moneys between the UE in whole cooperation measurement cell Group Source is staggered, and avoids the problem that the signal between cell is interfered, and many adjacent areas of SRS of a UE can measure, substantially Not there are problems that measurement adjacent area is very few.
102nd, the first base station obtains the first transmission power that target UE sends the SRS.
In LTE, up RSRP cannot be directly used to construct wireless grid, because LTE has uplink power control mechanism, this makes Base station measurement to the up RSRP of two UE can't differ too many, it is likely that the up RSRP of two UE is almost equal. Reason is, according to uplink power control mechanism, in order to reduce the power consumption of UE, and also to reduce this cell UE upward signals to neighbour The interference of area's UE upward signals, base station and UE can be fitted to each other, control the transmission power of UE upward signals, i.e., up transmitting work( Rate controls the level to " just "：On the basis of when ensureing that upward signal reaches base station, signal quality is good enough, allow The transmission power of UE is as far as possible little, and this function is referred to as uplink power control.Such as two UE, first UE because close to base station, signal When reaching base station decay less, quality it is high, therefore, base station will indicate that the UE reduces transmission power；And second UE from base station compared with Far, base station may will indicate that it increases transmission power, to reach signal receiving quality good enough.(it is also possible that UE sends out The interference penetrated before power, interference is big, and the transmit power of UE is then big, disturbs little, and the transmission power of UE is then little) through power control adjustment Afterwards, the transmission power one of two UE increases one and subtracts, and the up RSRP that final base station is measured may be almost equal, up RSRP constructions Wireless grid may be obscured far apart position for same wireless grid, cause wireless grid effectively to identify difference UE positions and fail.
Substantially, why wireless grid can be used to identify UE positions, and its basic principle is：Wireless signal is being propagated During power can decay, distance it is more remote, power attenuation is bigger, so, be in fact that power attenuation amount contains range information, And then contain positional information.Relation between RSRP and signal power attenuation is：Transmission power-the letter of RSRP=transmitting terminals Number propagation attenuation power, therefore, RSRP has contained decay power, and UE distance/location informations have also just been contained indirectly.Due to " RSRP " be with " signal propagation attenuation power " it is one-to-one, directly with descending RSRP construct wireless grid, with " signal pass Broadcast decay power " construction wireless grid be the same to the effect of station location marker.And " signal propagation attenuation power " is commonly referred to Path loss (Path Loss), abbreviation path loss.
Due to due to aforementioned uplink power control, up RSRP cannot be used for constructing wireless grid.Therefore in present invention enforcement In example, need to return origin, be used to construct wireless grid with " signal propagation attenuation power ", i.e., nothing is constructed by up path loss Wire grid.Equation " transmission power-path loss of RSRP=transmitting terminals " is converted can obtain " the transmitting work(of path loss=transmitting terminal Rate-RSRP ", is applied to up, reforms into " transmission power of up path loss=UE-up RSRP ".So, it is accurate in order to obtain Up path loss, it is crucial to obtain accurate uplink SRS transmit power.
According to LTE protocol, power when UE sends SRS determines according to equation below：
PSRS(i)=min { PCMAX,PSRS_OFFSET+10log10(MSRS)+Po_PUSCH(j)+α(j)·PL+f(i)}
Above-mentioned formula can be divided into two kinds of situations, and the transmitting of UE full powers and UE are not full power transmittings.
PCMAXThe maximum transmission power of UE is represented, base station, usually 23dBm are notified in the signaling messages by UE.Therefore, if UE launches (UE distance services cell is farther out) by full power, and " transmission power of UE " is exactly given value 23dBm of fixation, then can be with Up path loss is obtained by " up path loss=PCMAX-up RSRP ".
If UE is not the situation of full power transmitting, the SRS transmission power formula of UE are：
PSRS(i)=PSRS_OFFSET+10log10(MSRS)+Po_PUSCH(j)+α(j)·PL+f(i)
The right formula before three be all that the parameter for being handed down to UE by base station is determined, therefore, before three for base It is given value for standing.In Section 4 " α (j) PL ", " α (j) " is also the parameter that base station is allocated to UE, between 0-1, but " PL " It is descending path loss (PL is the abbreviation of Path Loss/ path losses) that UE is measured, descending path loss UE does not notify base station.Section 5 f I () is also the transmission power adjusting parameter that base station is allocated to UE, this parameter is a cumulative amount：At the i-th moment, base station issues one Individual transmission power adjusting parameter Δ piTo UE, UE receives the parameter, but the power adjustment of UE final applications isI.e. that UE final applications is the Δ p issued from the 1st time1(instruction of UE is issued in base station, improves how many every time, Reduce how many.Base station side finds that the signal arrival base station of UE is too weak, and base station just sends an instruction, such as 3db is exactly indicated UE increases 3dB transmission power, and when the interference of UE is reduced, or UE, closer to base station, base station finds that signal is relatively good, base station Instruction is then retransmited, such as 2dB is reduced, so by its accumulative addition) the last Δ p for issuing is added to alwaysiIt is accumulative Value.In { Δ pk, k=1,2 ..., i issue during, UE receive there is certain error probability, that is, have part Δ pkPossible UE solutions The value for recalling not is the value that base station issues.Therefore, base station side and UE sides are each self-recordingThere may be difference It is different.And continuity over time, the Δ p for issuingkIt is more and more, the Δ p of UE demodulation mistakeskNumber it is also more and more, base station F (i) differences of side and UE sides can be increasing.This can cause mistake in computation of the base station to " transmission power of UE ", and then cause The mistake in computation of up path loss.Summarize and be exactly, be how many (UE also can because 1) base station can not obtain the descending PL of UE measurements Report to base station, but this report cycle is long, base station needs the long time just to can know that), the 2) f of base station and UE I () there may be deviation and continuous enlargement (there is the probability of error base station when sending each instruction, sent finger is not known in base station Make whether UE receives), therefore, base station directly cannot go out the transmission power of UE according to the SRS transmission power formula to calculating of UE.
Therefore, optionally, in embodiments of the present invention, it is possible to use UE reports power headroom (the English full name of base station： Power Head Room, english abbreviation：PHR) (every one section of cycle, UE is to base station repeats when the power of previous transmitting is also remained How much).That is, described first base station is calculated the UE and sends out according to power consumption surplus PHR that target UE for receiving sends The Physical Uplink Shared Channel PUSCH for sending the PHR uses power.The first base station uses power meter according to the PUSCH Calculation obtains objective emission power, and the first transmitting work(of the SRS is sent as target UE using the objective emission power Rate.
PHR is meant that, for this ascending physical signal Uplink Shared Channel (English full name：Physical Uplink Shared Channel, english abbreviation：PUSCH) send, remove UE and send the power that PUSCH uses up, how much power there remains, It is, PHR=UE maximum transmission power-this PUSCH sends the power for using (UE needs that how much power used).According to LTE Agreement, base station can configure UE and periodically report PHR.
Give the correct time on the PHR of UE when base station receives, the work(for using is sent according to PHR=UE maximum transmission power-this PUSCH Rate, is easy to get the formula simple deformation：This PUSCH sends the power=UE maximum transmission power-PHR for using.
According to LTE protocol, the transmit power computing formula of PUSCH is as follows：
PPUSCH(i)=10log10(MPUSCH)+Po_PUSCH(j)+ΔTF(i)+α(j)·PL+f(i)
Contrast the transmit power computing formula of aforementioned SRS：
PSRS(i)=PSRS_OFFSET+10log10(MSRS)+Po_PUSCH(j)+α(j)·PL+f(i)
Can see, the transmit power formula and SRS transmission formula of PUSCH is much like.Most critical, cause the base station can not Two α (j) PL and f (i) of UE transmittings are accurately obtained, is all contained in two transmit power computing formula.So, in PHR On give the correct time, base station can calculate accurately according to " this PUSCH send use power=UE maximum transmission power-PHR " PUSCH transmit powers PPUSCHI (), then, further according to above-mentioned computing formula, can calculate α (j) PL+f (i)=PPUSCH (i)-(10log10(MPUSCH)+Po_PUSCH(j)+ΔTF(i)) all it is that base station side is determined because the part in the formula bracket of the right Parameter, be the given value of base station.Therefore equation below can be deduced and calculates the transmission power that UE sends SRS：
PSRS(i)=PSRS_OFFSET+10log10(MSRS)+Po_PUSCH(j)+PPUSCH(i')-(10log10(MPUSCH(i'))+ Po_PUSCH(j)+ΔTF(i'))
Wherein, i represents that target UE sends the subframe that SRS is used, and i' represents that target UE sends the subframe used during PHR, PSRSI () represents that target UE in subframe i sends first transmission power of the SRS, PSRS_OFFSETRepresent target UE Exclusive parameter preset, MSRSRepresent the transmission bandwidth of SRS described in the subframe i moment, Po_PUSCHJ () represents the PUSCH channels Power control parameters, PPUSCH(i') represent that PUSCH uses power, PPUSCH(i') value deducts UE for the maximum transmission power of target UE The PHR for reporting, MPUSCH(i') represent in subframe i' as the resource size of PUSCH distribution, ΔTF(i') represent according to the i-th ' subframe PUSCH send the power adjustment that selected modulation system is determined, UE is notified by base station.By notifying on the PHR of UE Breath, although base station still can not know the respective exact value of α (j) PL and f (i), but it is possible to obtain α (j) PL+f (i) Exact value, this to calculate SRS transmit power it is enough.
Specific algorithm is as follows：
The PUSCH transmit powers given the correct time in UE n-ths PHR are calculated first：PUSCH transmit powers=UE emission maximum work( Rate-PHR, further according to the RE numbers that the transmission bandwidth of PUSCH is included, obtains normalizing to the transmission power of each RE：UE is maximum Transmission power-PHR -10log (MPUSCH), wherein MPUSCHRepresent the PUSCH given the correct time in n-th PHR and send the RE quantity for including (because the total transmission power of UE is increased as the RE numbers for sending increase, need averagely on each RE, by single RE's Transmit power, could more accurately portray the transmit power level of UE present positions).Then along with SRS transmit powers with The biasing P of PUSCH transmit powersSRS_OFFSET(because LTE protocol regulation, the transmit power and PUSCH of each RE of SRS channels A biasing P can be configured between each RE transmit power of channelSRS_OFFSET), just obtain n-th PHR and be reported to (n+1)th time During PHR is reported, SRS sends the reference power of a RE：PSRS is per RE benchmark=UE maximum transmission power-PHR -10log (MPUSCH)+ PSRS_OFFSET.But the every RE benchmark of PSRS and non-real SRS transmit powers, because the moment of SRS transmissions and PHR report the moment It is often different, there are intervals；And SRS send period/frequency also tend to from PHR report cycles/frequency it is different, such as Shown in Fig. 3.
After UE n-ths PHR are reported, through the T1 times, UE have sent first SRS, and the T2 times are have passed through again, and UE sends out Send second SRS .....During T1, T2, the items in the formula of SRS transmit powers may change.More specifically Ground, may have two classes to change：One is that the path loss that UE is measured is changed, i.e. the item " α in UE transmission power computing formula J () PL " may change (one kind of path loss change is likely due to UE this period shift positions)；When another is this section Between base station may issue some new power control parameters and power control adjustment amount to UE.For the former, base station cannot be known, can cause Transmit power calculation error, but the calculation error and its little, are negligible, because unless UE is in high-speed mobile, it is no Then UE position very littles that in a short period of time (such as 100ms) is moved.
And for the latter, optionally, in embodiments of the present invention, when target UE sends the moment of the SRS and institute State target UE send the PHR moment it is different when, target UE sends first transmission power of the SRS and is：Target The transmission power knots modification sum that transmission power causes with power control parameters change, wherein the objective emission power is sent out for the UE The last UE before the SRS is sent to send the calculated power of PHR when institutes, the transmitting that the power control parameters change causes During power knots modification sends PHR to the UE transmissions SRS by the last described UE that the first base station is recorded The transmission power knots modification that power control parameters change causes.
Due to being parameter that base station oneself issues, the transmit power knots modification that Parameters variation can be caused is calculated simultaneously For calculating SRS transmit powers, i.e. PSRS=PSRS is per RE benchmark+ PHR be reported to SRS send during power control parameters change cause send out Send power knots modification.Although under the SRS transmit powers for according to said method calculating are yet suffered from during descending PL cannot be known with T1, T2 The power control parameters Δ p for sending outkThe error of mistake is demodulated in UE sides, but, the error of these two aspects is all only limited to from n-th PHR The error that (n+1)th PHR of reporting for work is introduced during reporting, i.e. when giving the correct time on (n+1)th PHR, the PSRS for newly calculating is per RE benchmark It is accurate, realizes " clearing " to error.It is, being reported using PHR, although can not thoroughly eliminate error, but Error can be limited in the error newly introduced between twice PHR is reported.And the report cycle of PHR is base station can control , such as, the cycle that PHR is reported can be set to 100ms～1s, within so short time, the position of UE changes very little, " α J the change of () PL " also can very little；The Δ p for issuingkNumber will not be too many, and UE demodulates the just less of mistake, therefore, both Error all can very little, to UE grids positioning error can be acceptance.
Summarize and be exactly, calculating P is reported according to the last PHRSRS is per RE benchmark=UE maximum transmission power-PHR- 10logMpusch+PSRS_OFFSET.Power control parameters during being reported to SRS to send further according to the last PHR are (including PSRS_ OFFSET、Po_PUSCH, each parameters of TPC) change the transmission power knots modification that brings, represented with Δ P, then final SRS sends per RE Power can be by PSRS=PSRS is per RE benchmark+ Δ P is being calculated.
103rd, the first base station is calculated the mesh according to first transmission power RSRP up with described first Mark UE sends the first up path loss of the SRS.
After first base station gets target UE sends first transmission power and the first up RSRP of SRS, then can lead to Cross formula " transmission power of up path loss=UE-uplink received power RSRP " to be calculated on the first of target UE transmission SRS Walking along the street is damaged.
104th, the adjacent base station is calculated the second up path loss.
Talk about in discussed above, first base station needs to construct wireless grid, not only needs first base station to be calculated First up path loss, in addition it is also necessary to which other adjacent base stations are calculated the second up path loss.It should be noted that herein adjacent Base station not be only an adjacent base station, the multiple phases in multiple neighbor cells of the cell that can be serviced by first base station Adjacent base station, such as 4,5 etc..Adjacent base station is more, then cause the wireless grid of subsequent construction more accurate.Adjacent base station meter The first base station into step 103 obtains the first up RSRP with preceding step 101 to calculate the concrete mode for obtaining the second up path loss And first transmission power, and it is similar to be calculated the mode of the first up path loss, does not repeat herein.
Separately it is noted that this step 104 not limit need perform preceding step 103 after just perform, due to adjacent base Station is to assist to calculate up path loss, therefore is with first base station while measuring and calculating, so step 104 can be with It is placed on any one position in above three step.
105th, the second up path loss that the first base station receiving neighbor bs send.
Adjacent base station is then sent to the second up path loss after assisting first base station to be calculated the second up path loss First base station, so that first base station constructs wireless grid by multiple up path losses, so as to carry out position to target UE Positioning.
106th, the first base station constructs wireless grid according to the described first up path loss and the second up path loss.
Because the characteristics of wireless signal is had random fluctuation by surrounding environment influence, certain position measurement in practice is obtained RSRP also has stochastic volatility, and measurement there is also in itself error, causes the RSRP can not unlimited precise marking UE positions. But fortunately RSRP maximum probabilities are the fluctuations in certain interval, therefore, the essence that one group of RSRP just can be determined with fluctuation range Spend to identify the position of UE, and such precision is enough for many applications of wireless network.Because up RSRP with Up path loss is corresponding, then as a example by by the process of 3dB precision (according to actual test, on fixing point base station measure it is up RSRP maximum probabilities fluctuation range be less than 3dB), obtain the UE station location markers of effect as schematically shown in Figure 4 --- base station it is whole little Area overlay area is divided into a piece of grid of length of side 3dB, and UE is positioned to one of grid.
In order to make it easy to understand, Fig. 4 illustrates the tuple of path loss two of the second base station by first base station and an adjacent area to mark The position of knowledge：Just look like that Serving cell is divided into some lattices, each lattice length of side 3dB, positioning precision is exactly one Lattice --- because these lattices are to measure up path loss with wireless signal to mark off come dimension is dB, rather than uses Jing Latitude or with the dimension rice of length/distance/centimetre come the geographical grid that divides, so, such grid is referred to as wireless grid.Separately Outward, 2 can be typically can exceed that with the adjacent base station for assisting first base station measurement path loss, now a wireless grid is measured 3 tuples that the path loss of each cell is constituted, 4 tuples ... (being determined according to the number of cells for participating in measurement).Wireless grid accumulates eventually Containing positional information, when error range and the probability of error meet application requirement, wireless grid may be used for identifying UE positions, and Record the channel quality information of the position.
In the present invention, first base station obtains first by the detection reference signal SRS that measurement target UE UE sends Uplink reference signals receiving power RSRP, target UE is the UE in the Serving cell that first base station is located, and first base station obtains mesh Mark UE sends first transmission power of SRS, and first base station is calculated target according to the first transmission power and the first up RSRP UE sends the first up path loss of SRS, the second up path loss that first base station receiving neighbor bs send, and the second up path loss is Adjacent base station is calculated according to the second up RSRP and the second transmission power, wherein, the second up RSRP is adjacent base station What the SRS that measurement target UE sends was acquired, the second transmission power is that adjacent base station is obtained obtained by target UE transmission SRS Transmission power, first base station constructs wireless grid according to the first up path loss and the second up path loss.So, due to base station Reception and measurement capability are more much larger than UE, the information that a general UE sends can received by multiple base stations around, because The wireless grid that this up path loss that UE is obtained by base station is constructed is more accurate, so as to improve determining for the position to UE Position.
With reference to shown in Fig. 5, Fig. 5 is a kind of schematic diagram of base station, the first base station in base station correspondence Fig. 2 embodiments, bag Include：
Acquiring unit 201, the detection reference signal SRS for being sent by measurement target UE UE obtains first Row Reference Signal Received Power RSRP, target UE is the UE in the Serving cell that base station is located；
The acquiring unit 201 is additionally operable to, and obtains the first transmission power that target UE sends the SRS；
Computing unit 202, for being calculated the mesh according to first transmission power RSRP up with described first Mark UE sends the first up path loss of the SRS；
Receiving unit 203, for the second up path loss that receiving neighbor bs send, the second up path loss is described Adjacent base station is calculated according to the second up RSRP and the second transmission power, wherein, the second up RSRP is described Adjacent base station measures what the SRS of the target UE transmission was acquired, and second transmission power is the adjacent base station Obtain the transmission power obtained by the target UE transmission SRS；
Structural unit 204, for constructing wireless grid according to the described first up path loss and the second up path loss.
Optionally, the acquiring unit 201 specifically for：
Power consumption surplus PHR sent according to target UE for receiving is calculated the thing that the UE sends the PHR Reason Uplink Shared Channel PUSCH uses power；
Objective emission power is obtained using power calculation according to the PUSCH, and using the objective emission power as institute State the first transmission power that target UE sends the SRS.
Optionally, the acquiring unit obtains the concrete meter that target UE described in 201 sends first transmission power of the SRS Calculating formula includes：
PSRS(i)=PSRS_OFFSET+10log10(MSRS)+Po_PUSCH(j)+PPUSCH(i)-(10log10(MPUSCH(i'))+ Po_PUSCH(j)+ΔTF(i'))
Wherein, PSRSI () represents that target UE in subframe i sends first transmission power of the SRS, PSRS_OFFSET Represent the exclusive parameter preset of target UE, MSRSRepresent the transmission bandwidth of SRS described in the subframe i moment, Po_PUSCHJ () represents The power control parameters of the PUSCH channels, MPUSCH(i') represent in subframe i' as the resource size of PUSCH distribution, ΔTFI () represents The power adjustment that selected modulation system is determined is sent according to the PUSCH of the i-th ' subframe.
Optionally, when the moment that the moment that target UE sends the SRS sends the PHR with target UE differs During sample, target UE sends first transmission power of the SRS and is：
The transmission power knots modification sum that objective emission power causes with power control parameters change, wherein the objective emission work( Calculated power when rate sends the last UE transmissions PHR before the SRS for the UE, the power control parameters become The transmission power knots modification that change causes sends PHR and sends to the UE by the last described UE that the first base station is recorded The transmission power knots modification that power control parameters change causes during the SRS.
Optionally, the base station also includes：
Allocation unit 205, for the detection reference signal SRS sent by measurement target UE UE in acquiring unit Before obtaining the first uplink reference signals receiving power RSRP, with the cell that the cell and the adjacent base station that are serviced are serviced All UE are used as the UE in same virtual subdistrict so that all UE in cell that the cell for being serviced is serviced with adjacent base station The shared SRS resource with portion cell-level, and distribute target SRS resource for target UE.
The construction being referred to provided in Fig. 2 embodiments with regard to the specific descriptions of unit in Fig. 5 embodiments is wireless The detailed description of the method for grid, does not repeat herein.
With reference to shown in Fig. 6, Fig. 6 is a kind of schematic diagram of base station, the adjacent base station in base station correspondence Fig. 2 embodiments, bag Include：
Acquiring unit 301, the detection reference signal SRS for being sent by measurement target UE UE obtains first Row Reference Signal Received Power RSRP, target UE is the UE in the Serving cell that first base station is located；
The acquiring unit 301 is additionally operable to, and obtains the second transmission power that target UE sends the SRS；
Computing unit 302, for being calculated the mesh according to second transmission power RSRP up with described second Mark UE sends the second up path loss of the SRS；
Transmitting element 303, for the described second up path loss to be sent to into the first base station.
Optionally, the acquiring unit 301 specifically for：
Power consumption surplus PHR sent according to target UE for receiving is calculated the thing that the UE sends the PHR Reason Uplink Shared Channel PUSCH uses power；
Objective emission power is obtained using power calculation according to the PUSCH, and using the objective emission power as institute State the second transmission power that target UE sends the SRS.
Optionally, the acquiring unit 301 obtains the concrete meter that target UE sends second transmission power of the SRS Calculating formula includes：
PSRS(i)=PSRS_OFFSET+10log10(MSRS)+Po_PUSCH(j)+PPUSCH(i)-(10log10(MPUSCH(i'))+ Po_PUSCH(j)+ΔTF(i'))
Wherein, i represents that target UE sends the subframe that SRS is used, and i' represents that target UE sends the subframe used during PHR, PSRSI () represents that target UE in subframe i sends first transmission power of the SRS, PSRS_OFFSETRepresent target UE Exclusive parameter preset, MSRSRepresent the transmission bandwidth of SRS described in the subframe i moment, Po_PUSCHJ () represents the PUSCH channels Power control parameters, PPUSCH(i') represent that PUSCH uses power, PPUSCH(i') value deducts institute for the maximum transmission power of target UE State PHR, MPUSCH(i') represent in subframe i' as the resource size of PUSCH distribution, ΔTFI () is represented according to the i-th ' subframe PUSCH sends the power adjustment that selected modulation system is determined.
Optionally, when the moment that the moment that target UE sends the SRS sends the PHR with target UE differs During sample, target UE sends second transmission power of the SRS and is：
The transmission power knots modification sum that objective emission power causes with power control parameters change, wherein the objective emission work( Calculated power when rate sends the last UE transmissions PHR before the SRS for the UE, the power control parameters become The transmission power knots modification that change causes sends PHR and sends to the UE by the last described UE that the adjacent base station is recorded The transmission power knots modification that power control parameters change causes during the SRS.
The construction being referred to provided in Fig. 2 embodiments with regard to the specific descriptions of unit in Fig. 6 embodiments is wireless The detailed description of the method for grid, does not repeat herein.
First base station described in Fig. 5 embodiments also has the embodiment of another form, with reference to shown in Fig. 7, including：Processor 401st, memory 402, transceiver 403, the processor 401, the memory 402 and the transceiver 403 pass through bus 404 connections, transceiver 403 can include transmitter and receiver, and the memory 402 is stored with computer instruction, the place Reason device is used to realize that first base station is held in the method that wireless grid is constructed in Fig. 1 embodiments by performing the computer instruction The function of capable step.Concrete implementation can adopt all kinds of flexible designs, the corresponding function of each device to enter The reference method embodiment of one step, the present invention is not limited.
Adjacent base station described in Fig. 6 embodiments also has the embodiment of another form, with reference to shown in Fig. 8, including：Processor 501st, memory 502, transceiver 503, the processor 501, the memory 502 and the transceiver 503 pass through bus 504 connections, transceiver 503 can include transmitter and receiver, and the memory 502 is stored with computer instruction, the place Reason device is used to realize that adjacent base station is held in the method that wireless grid is constructed in Fig. 1 embodiments by performing the computer instruction The function of capable step.Concrete implementation can adopt all kinds of flexible designs, the corresponding function of each device to enter The reference method embodiment of one step, the present invention is not limited.
Those skilled in the art can be understood that, for convenience and simplicity of description, the system of foregoing description, The specific work process of device and unit, may be referred to the corresponding process in preceding method embodiment, will not be described here.
In several embodiments provided herein, it should be understood that disclosed system, apparatus and method can be with Realize by another way.For example, device embodiment described above is only schematic, for example, the unit Divide, only a kind of division of logic function can have other dividing mode, such as multiple units or component when actually realizing Can with reference to or be desirably integrated into another system, or some features can be ignored, or not perform.It is another, it is shown or The coupling each other for discussing or direct-coupling or communication connection can be the indirect couplings by some interfaces, device or unit Close or communicate to connect, can be electrical, mechanical or other forms.
The unit as separating component explanation can be or may not be it is physically separate, it is aobvious as unit The part for showing can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple On NE.Some or all of unit therein can according to the actual needs be selected to realize the mesh of this embodiment scheme 's.
In addition, each functional unit in each embodiment of the invention can be integrated in a processing unit, it is also possible to It is that unit is individually physically present, it is also possible to which two or more units are integrated in a unit.Above-mentioned integrated list Unit both can be realized in the form of hardware, it would however also be possible to employ the form of SFU software functional unit is realized.
If the integrated unit is realized using in the form of SFU software functional unit and as independent production marketing or used When, during a computer read/write memory medium can be stored in.Based on such understanding, technical scheme is substantially The part for contributing to prior art in other words or all or part of the technical scheme can be in the form of software products Embody, the computer software product is stored in a storage medium, including some instructions are used so that a computer Equipment (can be personal computer, server, or network equipment etc.) performs the complete of each embodiment methods described of the invention Portion or part steps.And aforesaid storage medium includes：USB flash disk, portable hard drive, read-only storage (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc. are various can store journey The medium of sequence code.
The above, above example only to illustrate technical scheme, rather than a limitation；Although with reference to front State embodiment to be described in detail the present invention, it will be understood by those within the art that：It still can be to front State the technical scheme described in each embodiment to modify, or equivalent is carried out to which part technical characteristic；And these Modification is replaced, and does not make the spirit and scope of the essence disengaging various embodiments of the present invention technical scheme of appropriate technical solution.

Claims (20)

1. it is a kind of construction wireless grid method, it is characterised in that methods described includes：
First base station is connect by measuring detection reference signal SRS the first uplink reference signals of acquisition that target UE UE sends Power RSRP is received, target UE is the UE in the Serving cell that the first base station is located；
The first base station obtains the first transmission power that target UE sends the SRS；
The first base station is calculated target UE and sends according to first transmission power RSRP up with described first The first up path loss of the SRS；
The second up path loss that the first base station receiving neighbor bs send, the second up path loss is the adjacent base station It is calculated according to the second up RSRP and the second transmission power, wherein, the second up RSRP is the adjacent base station Measure what the SRS that target UE sends was acquired, it is described that second transmission power is that the adjacent base station is obtained Target UE sends the transmission power obtained by the SRS；
The first base station constructs wireless grid according to the described first up path loss and the second up path loss.
2. method according to claim 1, it is characterised in that the first base station obtains target UE and sends described First transmission power of SRS, including：
The first base station is according to power consumption surplus PHR that target UE for receiving sends is calculated the UE transmissions The Physical Uplink Shared Channel PUSCH of PHR uses power；
The first base station obtains objective emission power according to the PUSCH using power calculation, and with the objective emission work( Rate sends first transmission power of the SRS as target UE.
3. method according to claim 2, it is characterised in that the first base station uses power meter according to the PUSCH Calculation obtains objective emission power, and the first transmitting work(of the SRS is sent as target UE using the objective emission power The specific formula for calculation of rate includes：
PSRS(i)=PSRS_OFFSET+10log10(MSRS)+Po_PUSCH(j)+PPUSCH(i')-(10log10(MPUSCH(i'))+Po_PUSCH (j)+ΔTF(i')) wherein, i represents that target UE sends the subframe that SRS is used, and i' represents that target UE sends the son used during PHR Frame, PSRSI () represents that target UE in subframe i sends first transmission power of the SRS, PSRS_OFFSETRepresent the mesh The exclusive parameter preset of mark UE, MSRSRepresent the transmission bandwidth of SRS described in the subframe i moment, Po_PUSCHJ () represents the PUSCH letters The power control parameters in road, PPUSCH(i') represent that PUSCH uses power, PPUSCH(i') value subtracts for the maximum transmission power of target UE Remove the PHR, MPUSCH(i') represent in subframe i' as the resource size of PUSCH distribution, ΔTFI () is represented according to the i-th ' subframe PUSCH sends the power adjustment that selected modulation system is determined.
4. method according to claim 3, it is characterised in that when target UE send the moment of the SRS with it is described When the moment of the target UE transmission PHR is different, target UE sends first transmission power of the SRS and is：
The transmission power knots modification sum that objective emission power causes with power control parameters change, wherein the objective emission power is The UE sends the last UE before the SRS and sends the calculated power of PHR when institutes, and the power control parameters change is drawn The transmission power knots modification for rising sends PHR to the UE and sends described by the last described UE that the first base station is recorded The transmission power knots modification that power control parameters change causes during SRS.
5. the method according to Claims 1-4 wherein any one, it is characterised in that in the first base station by surveying The detection reference signal SRS that amount target UE UE sends is obtained before the first uplink reference signals receiving power RSRP, institute Stating method also includes：
The all UE in cell that the cell and adjacent base station that the first base station is serviced with the first base station is serviced make For the UE in same virtual subdistrict so that the institute in cell that the cell that the first base station is serviced is serviced with adjacent base station There are the shared SRS resources with portion cell-level of UE, and distribute target SRS resource for target UE.
6. it is a kind of construction wireless grid method, it is characterised in that methods described includes：
Adjacent base station is connect by measuring detection reference signal SRS the first uplink reference signals of acquisition that target UE UE sends Power RSRP is received, target UE is the UE in the Serving cell that first base station is located；
The adjacent base station obtains the second transmission power that target UE sends the SRS；
The adjacent base station is calculated target UE and sends according to second transmission power RSRP up with described second The second up path loss of the SRS；
Described second up path loss is sent to the first base station by the adjacent base station.
7. method according to claim 6, it is characterised in that the adjacent base station obtains target UE and sends described Second transmission power of SRS, including：
The adjacent base station is according to power consumption surplus PHR that target UE for receiving sends is calculated the UE transmissions The Physical Uplink Shared Channel PUSCH of PHR uses power；
The adjacent base station obtains objective emission power according to the PUSCH using power calculation, and with the objective emission work( Rate sends second transmission power of the SRS as target UE.
8. method according to claim 7, it is characterised in that the adjacent base station uses power meter according to the PUSCH Calculation obtains objective emission power, and the second transmitting work(of the SRS is sent as target UE using the objective emission power The specific formula for calculation of rate includes：
PSRS(i)=PSRS_OFFSET+10log10(MSRS)+Po_PUSCH(j)+PPUSCH(i')-(10log10(MPUSCH(i'))+Po_PUSCH (j)+ΔTF(i')) wherein, i represents that target UE sends the subframe that SRS is used, and i' represents that target UE sends the son used during PHR Frame, PSRSI () represents that target UE in subframe i sends first transmission power of the SRS, PSRS_OFFSETRepresent the mesh The exclusive parameter preset of mark UE, MSRSRepresent the transmission bandwidth of SRS described in the subframe i moment, Po_PUSCHJ () represents the PUSCH letters The power control parameters in road, PPUSCH(i') represent that PUSCH uses power, PPUSCH(i') value subtracts for the maximum transmission power of target UE Remove the PHR, MPUSCH(i') represent in subframe i' as the resource size of PUSCH distribution, ΔTFI () is represented according to the i-th ' subframe PUSCH sends the power adjustment that selected modulation system is determined.
9. method according to claim 8, it is characterised in that when target UE send the moment of the SRS with it is described When the moment of the target UE transmission PHR is different, target UE sends second transmission power of the SRS and is：
The transmission power knots modification sum that objective emission power causes with power control parameters change, wherein the objective emission power is The UE sends the last UE before the SRS and sends the calculated power of PHR when institutes, and the power control parameters change is drawn The transmission power knots modification for rising sends PHR to the UE and sends described by the last described UE that the adjacent base station is recorded The transmission power knots modification that power control parameters change causes during SRS.
10. a kind of base station, it is characterised in that the base station includes：
Acquiring unit, the detection reference signal SRS for being sent by measurement target UE UE obtains the first up reference Signal reception power RSRP, target UE is the UE in the Serving cell that base station is located；
The acquiring unit is additionally operable to, and obtains the first transmission power that target UE sends the SRS；
Computing unit, sends for being calculated target UE according to first transmission power RSRP up with described first The first up path loss of the SRS；
Receiving unit, for the second up path loss that receiving neighbor bs send, the second up path loss is the adjacent base Stand and be calculated according to the second up RSRP and the second transmission power, wherein, the second up RSRP is the adjacent base What the SRS that measurement target UE of standing sends was acquired, second transmission power obtains institute for the adjacent base station State the transmission power obtained by the target UE transmission SRS；
Structural unit, for constructing wireless grid according to the described first up path loss and the second up path loss.
11. base stations according to claim 10, it is characterised in that the acquiring unit specifically for：
Power consumption surplus PHR sent according to target UE for receiving is calculated the UE and sends the PHR physically Row shared channel PUSCH uses power；
Objective emission power is obtained using power calculation according to the PUSCH, and using the objective emission power as the mesh Mark UE sends first transmission power of the SRS.
12. base stations according to claim 11, it is characterised in that the acquiring unit obtains target UE and sends described The specific formula for calculation of first transmission power of SRS includes：
PSRS(i)=PSRS_OFFSET+10log10(MSRS)+Po_PUSCH(j)+PPUSCH(i')-(10log10(MPUSCH(i'))+Po_PUSCH (j)+ΔTF(i')) wherein, i represents that target UE sends the subframe that SRS is used, and i' represents that target UE sends the son used during PHR Frame, PSRSI () represents that target UE in subframe i sends first transmission power of the SRS, PSRS_OFFSETRepresent the mesh The exclusive parameter preset of mark UE, MSRSRepresent the transmission bandwidth of SRS described in the subframe i moment, Po_PUSCHJ () represents the PUSCH letters The power control parameters in road, PPUSCH(i') represent that PUSCH uses power, PPUSCH(i') value subtracts for the maximum transmission power of target UE Remove the PHR, MPUSCH(i') represent in subframe i' as the resource size of PUSCH distribution, ΔTFI () is represented according to the i-th ' subframe PUSCH sends the power adjustment that selected modulation system is determined.
13. base stations according to claim 12, it is characterised in that when target UE sends the moment of the SRS and institute State target UE send the PHR moment it is different when, target UE sends first transmission power of the SRS and is：
The transmission power knots modification sum that objective emission power causes with power control parameters change, wherein the objective emission power is The UE sends the last UE before the SRS and sends the calculated power of PHR when institutes, and the power control parameters change is drawn The transmission power knots modification for rising sends PHR to the UE and sends described by the last described UE that the first base station is recorded The transmission power knots modification that power control parameters change causes during SRS.
14. base stations according to claim 10 to 13 wherein any one, it is characterised in that the base station also includes：
Allocation unit, for obtaining the by the detection reference signal SRS that measurement target UE UE sends in acquiring unit Before one uplink reference signals receiving power RSRP, with all UE in the cell that the cell and the adjacent base station that are serviced are serviced As the UE in same virtual subdistrict so that all UE in cell that the cell for being serviced is serviced with adjacent base station are shared same The SRS resource of a cell-level, and distribute target SRS resource for target UE.
15. a kind of base stations, it is characterised in that the base station includes：
Acquiring unit, the detection reference signal SRS for being sent by measurement target UE UE obtains the first up reference Signal reception power RSRP, target UE is the UE in the Serving cell that first base station is located；
The acquiring unit is additionally operable to, and obtains the second transmission power that target UE sends the SRS；
Computing unit, sends for being calculated target UE according to second transmission power RSRP up with described second The second up path loss of the SRS；
Transmitting element, for the described second up path loss to be sent to into the first base station.
16. base stations according to claim 15, it is characterised in that the acquiring unit specifically for：
Power consumption surplus PHR sent according to target UE for receiving is calculated the UE and sends the PHR physically Row shared channel PUSCH uses power；
Objective emission power is obtained using power calculation according to the PUSCH, and using the objective emission power as the mesh Mark UE sends second transmission power of the SRS.
17. base stations according to claim 16, it is characterised in that the acquiring unit obtains target UE and sends described The specific formula for calculation of second transmission power of SRS includes：
PSRS(i)=PSRS_OFFSET+10log10(MSRS)+Po_PUSCH(j)+PPUSCH(i')-(10log10(MPUSCH(i'))+Po_PUSCH (j)+ΔTF(i')) wherein, i represents that target UE sends the subframe that SRS is used, and i' represents that target UE sends the son used during PHR Frame, PSRSI () represents that target UE in subframe i sends first transmission power of the SRS, PSRS_OFFSETRepresent the mesh The exclusive parameter preset of mark UE, MSRSRepresent the transmission bandwidth of SRS described in the subframe i moment, Po_PUSCHJ () represents the PUSCH letters The power control parameters in road, PPUSCH(i') represent that PUSCH uses power, PPUSCH(i') value subtracts for the maximum transmission power of target UE Remove the PHR, MPUSCH(i') represent in subframe i' as the resource size of PUSCH distribution, ΔTFI () is represented according to the i-th ' subframe PUSCH sends the power adjustment that selected modulation system is determined.
18. base stations according to claim 17, it is characterised in that when target UE sends the moment of the SRS and institute State target UE send the PHR moment it is different when, target UE sends second transmission power of the SRS and is：
The transmission power knots modification sum that objective emission power causes with power control parameters change, wherein the objective emission power is The UE sends the last UE before the SRS and sends the calculated power of PHR when institutes, and the power control parameters change is drawn The transmission power knots modification for rising sends PHR to the UE and sends described by the last described UE that the adjacent base station is recorded The transmission power knots modification that power control parameters change causes during SRS.
19. a kind of base stations, it is characterised in that the base station includes：Processor, memory, transceiver, the processor, storage Device and transceiver are connected by bus, and the memory storage has computer instruction, and the processor is by performing the meter Calculation machine instructs the method for realizing the construction wireless grid as described in power 1 to 5 any one of power.
20. a kind of base stations, it is characterised in that the base station includes：Processor, memory, transceiver, the processor, storage Device and transceiver are connected by bus, and the memory storage has computer instruction, and the processor is by performing the meter Calculation machine instructs the method for realizing the construction wireless grid as described in power 6 to 9 any one of power.
CN201611001288.XA 2016-11-14 2016-11-14 Method and base station for constructing wireless grid Active CN106572478B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201611001288.XA CN106572478B (en) 2016-11-14 2016-11-14 Method and base station for constructing wireless grid
PCT/CN2017/102966 WO2018086415A1 (en) 2016-11-14 2017-09-22 Method for constructing wireless grid and base station

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611001288.XA CN106572478B (en) 2016-11-14 2016-11-14 Method and base station for constructing wireless grid

Publications (2)

Publication Number Publication Date
CN106572478A true CN106572478A (en) 2017-04-19
CN106572478B CN106572478B (en) 2020-09-08

Family

ID=58542768

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201611001288.XA Active CN106572478B (en) 2016-11-14 2016-11-14 Method and base station for constructing wireless grid

Country Status (2)

Country Link
CN (1) CN106572478B (en)
WO (1) WO2018086415A1 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107733572A (en) * 2017-10-19 2018-02-23 北京锐安科技有限公司 Method, apparatus, detecting devices and the storage medium of mobile terminal uplink detection
WO2018086415A1 (en) * 2016-11-14 2018-05-17 华为技术有限公司 Method for constructing wireless grid and base station
WO2018232719A1 (en) * 2017-06-23 2018-12-27 Oppo广东移动通信有限公司 Wireless communication method and apparatus
WO2020125056A1 (en) * 2018-12-21 2020-06-25 中兴通讯股份有限公司 Service processing method and apparatus
WO2020155184A1 (en) * 2019-02-03 2020-08-06 Oppo广东移动通信有限公司 Method and device for measuring interference or signal received power
CN111586855A (en) * 2019-02-15 2020-08-25 华为技术有限公司 Method and device for signal transmission
CN111867034A (en) * 2019-04-30 2020-10-30 大唐移动通信设备有限公司 Configuration method, device and equipment for positioning detection reference signal
WO2021027761A1 (en) * 2019-08-12 2021-02-18 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Method and apparatus for determining transmit power
CN112787780A (en) * 2019-11-07 2021-05-11 维沃移动通信有限公司 SRS emission setting method, information configuration method, positioning method and related equipment
CN113382469A (en) * 2020-02-25 2021-09-10 上海诺基亚贝尔股份有限公司 Transmit power control for positioning reference signals

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110831057B (en) * 2019-11-13 2023-03-24 中国联合网络通信集团有限公司 Network coverage condition detection method, device and storage medium

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102006547A (en) * 2009-08-28 2011-04-06 北京三星通信技术研究有限公司 Locating method, method for broadcasting adjacent base station location information and locating capacity negotiation methods
CN102449497A (en) * 2009-06-05 2012-05-09 高通股份有限公司 Positioning of user equipment in a wireless communication network
CN102572913A (en) * 2010-12-08 2012-07-11 华为技术有限公司 Data measuring method, communication system and related device
CN104219620A (en) * 2013-06-05 2014-12-17 华为技术有限公司 Terminal positioning method and terminal positioning device
US20160187459A1 (en) * 2013-07-31 2016-06-30 Hewlett-Packard Development Company, L.P. Determining the position of a mobile device within a structure

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106572478B (en) * 2016-11-14 2020-09-08 上海华为技术有限公司 Method and base station for constructing wireless grid

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102449497A (en) * 2009-06-05 2012-05-09 高通股份有限公司 Positioning of user equipment in a wireless communication network
CN102006547A (en) * 2009-08-28 2011-04-06 北京三星通信技术研究有限公司 Locating method, method for broadcasting adjacent base station location information and locating capacity negotiation methods
CN102572913A (en) * 2010-12-08 2012-07-11 华为技术有限公司 Data measuring method, communication system and related device
CN104219620A (en) * 2013-06-05 2014-12-17 华为技术有限公司 Terminal positioning method and terminal positioning device
US20160187459A1 (en) * 2013-07-31 2016-06-30 Hewlett-Packard Development Company, L.P. Determining the position of a mobile device within a structure

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018086415A1 (en) * 2016-11-14 2018-05-17 华为技术有限公司 Method for constructing wireless grid and base station
WO2018232719A1 (en) * 2017-06-23 2018-12-27 Oppo广东移动通信有限公司 Wireless communication method and apparatus
CN110741694A (en) * 2017-06-23 2020-01-31 Oppo广东移动通信有限公司 Wireless communication method and apparatus
CN110741694B (en) * 2017-06-23 2024-04-26 Oppo广东移动通信有限公司 Wireless communication method and device
US11129114B2 (en) 2017-06-23 2021-09-21 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Method for sounding reference signal communication method and terminal device
CN107733572A (en) * 2017-10-19 2018-02-23 北京锐安科技有限公司 Method, apparatus, detecting devices and the storage medium of mobile terminal uplink detection
WO2020125056A1 (en) * 2018-12-21 2020-06-25 中兴通讯股份有限公司 Service processing method and apparatus
US11910220B2 (en) 2019-02-03 2024-02-20 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Method and device for measuring interference or signal received power
WO2020155184A1 (en) * 2019-02-03 2020-08-06 Oppo广东移动通信有限公司 Method and device for measuring interference or signal received power
US11438785B2 (en) 2019-02-03 2022-09-06 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Method and device for measuring interference or signal received power
CN111586855A (en) * 2019-02-15 2020-08-25 华为技术有限公司 Method and device for signal transmission
US11937203B2 (en) 2019-02-15 2024-03-19 Huawei Technologies Co., Ltd. Signal transmission method and apparatus
CN111586855B (en) * 2019-02-15 2024-02-09 华为技术有限公司 Signal transmission method and device
CN111867034A (en) * 2019-04-30 2020-10-30 大唐移动通信设备有限公司 Configuration method, device and equipment for positioning detection reference signal
US11653310B2 (en) 2019-08-12 2023-05-16 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Method and apparatus for determining transmit power
CN113613322B (en) * 2019-08-12 2023-06-20 Oppo广东移动通信有限公司 Method and device for determining a transmission power
CN113613322A (en) * 2019-08-12 2021-11-05 Oppo广东移动通信有限公司 Method and apparatus for determining transmit power
WO2021027761A1 (en) * 2019-08-12 2021-02-18 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Method and apparatus for determining transmit power
CN112787780B (en) * 2019-11-07 2022-07-01 维沃移动通信有限公司 SRS emission setting method, information configuration method, positioning method and related equipment
CN112787780A (en) * 2019-11-07 2021-05-11 维沃移动通信有限公司 SRS emission setting method, information configuration method, positioning method and related equipment
CN113382469B (en) * 2020-02-25 2023-06-20 上海诺基亚贝尔股份有限公司 Transmit power control for positioning reference signals
CN113382469A (en) * 2020-02-25 2021-09-10 上海诺基亚贝尔股份有限公司 Transmit power control for positioning reference signals

Also Published As

Publication number Publication date
WO2018086415A1 (en) 2018-05-17
CN106572478B (en) 2020-09-08

Similar Documents

Publication Publication Date Title
CN106572478A (en) Wireless grid building method and base station
CN106851570B (en) Method and device for positioning mobile terminal based on MR
JP5280514B2 (en) Sounding reference signal transfer method
EP3890361A1 (en) Cell longitude and latitude prediction method and device, server, base station, and storage medium
US20080219201A1 (en) Method of Clustering Devices in Wireless Communication Network
CN109548074B (en) Uplink interference source waveform positioning method, device, equipment and medium based on MR
CN106559879A (en) Information sends and determines, the method and device that relation determines
CN107807346A (en) Adaptive WKNN outdoor positionings method based on OTT Yu MR data
KR20190129906A (en) Method and system for measuring position of terminal in wireless communication system
CN108781428A (en) Cellular telecommunication network
CN102869020A (en) Method and device for optimizing wireless network
CN109428657A (en) A kind of localization method and device
CN108243447A (en) The localization method and device of a kind of external disturbance
CN103179583A (en) Network simulation method and device
CN111837447A (en) Apparatus and method for side-line resource pool selection based on physical motion
WO2007031962A2 (en) Method of clustering devices in wireless communication nework
CN106550467A (en) A kind of resource regulating method and base station
CN106304153A (en) A kind of method and device determining indoor user
US20200267568A1 (en) Frequency planning for a communication system
CN102164379B (en) Method and device for adjusting frequency
CN109994832A (en) A kind of antenna feeder method of adjustment, apparatus and system
CN105376743B (en) A kind of method and device obtaining TD-SCDMA Annoyance Index
CN106604392A (en) Wifi positioning method based on bidirectional signal intensity data and server
CN111263382B (en) Method, device and equipment for determining problem source cell causing overlapping coverage
WO2024055803A1 (en) Interference detection method, base station, and storage medium

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant