CN207354626U - A kind of expansion equipment and system at distribution skin station - Google Patents
A kind of expansion equipment and system at distribution skin station Download PDFInfo
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- CN207354626U CN207354626U CN201720475074.XU CN201720475074U CN207354626U CN 207354626 U CN207354626 U CN 207354626U CN 201720475074 U CN201720475074 U CN 201720475074U CN 207354626 U CN207354626 U CN 207354626U
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- expansion equipment
- skin station
- uplink signal
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- distributed skin
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Abstract
The utility model provides a kind of expansion equipment and system at distributed skin station, is related to field of communication technology, to reduce the cost of indoor positioning.The expansion equipment at the distributed skin station of the utility model, including：At least one receiving module, the wirelessly uplink signal of receiving terminal, and the uplink signal is returned to distributed skin station by wired mode, to return the uplink signal to server from the distributed skin station, and the terminal is positioned according to the uplink signal by the server.The utility model can be to avoid multiple transmitters be set, so as to reduce the cost of indoor positioning.
Description
Technical field
It the utility model is related to field of communication technology, more particularly to a kind of expansion equipment and system at distributed skin station.
Background technology
Distributed skin station (Pico RRU, also referred to as pRRU) is a kind of miniaturization, low-power, the in-door covering of low-power consumption
Radio frequency unit (RRU, Radio Remote Unit).Function that it is completed and essentially identical for traditional RRU of grand covering,
Possess the two-part function of Receiver And Transmitter, i.e., all distally converting digital signals into radiofrequency signal, then amplification passes
See off；Or the received radiofrequency signal of reception antenna, radiofrequency signal is converted into digital signal and is transmitted to BBU (Building again
Base band Unite, baseband processing unit).Therefore, Pico RRU equally also include ifd module, Transceiver Module, work(
The function module such as amplification module and filter module, also, baseband functions are equally completed by BBU.
However, being compared with the common RRU of grand covering, Pico RRU also have the characteristics of some itself differences：
1) since Pico RRU are used for in-door covering, so transmission power is relatively low, generally in hundreds of milliwatt magnitudes, and volume
It is smaller, it is hiding to beautify；2) for indoor deployment and the convenience of construction, Pico RRU generally use three-level structure, i.e., multiple
Pico RRU are connected to a dedicated concentration crosspoint (being called Hub in the text) by cable, and then multiple Hub lead to again
Cross optical fiber and be connected to BBU.
Since Pico RRU possess a complete radio frequency unit disposal ability, spirit can be carried out between multiple Pico RRU
Cell combining living and division.For example when deployment region capacity requirement is larger, multiple Pico RRU can split into multiple small
Area, to increase capacity.Possess These characteristics in view of Pico RRU, Pico RRU are to be chiefly used in market, airport station, stadium
The large capacity in-door covering scene such as shop.
In the market of deployment Pico RRU, Pico RRU can be based on indoor positioning service is provided.The master of its locating scheme
Wanting principle is, multiple Pico RRU can receive the uplink signal that same terminal is sent at the same time, and then (this is fixed for location-server
Position server can be BBU or be exclusively used in the server of positioning) can the feature based on this uplink signal, such as arrival
Angle, receive power etc., and joint carries out signal processing, so as to position the indoor location of this terminal.
Generally, when Pico RRU deployment densities are bigger, that is, the spacing corresponded between two adjacent Pico RRU is got over
Hour, the precision of indoor positioning is higher.Such as in order to reach the positioning accuracy of 5m, the average deployment spacing of Pico RRU needs
20m or so.However, Pico RRU actual deployments spacing is usually in 40~50m or so, it means that, in order to meet indoor positioning
Accuracy requirement (such as 5m or so), Pico RRU deployment needs be encrypted.
However, the deployment for encrypting Pico RRU for indoor positioning service would generally increase cost.
Utility model content
In view of this, the utility model provides a kind of expansion equipment and system at distributed skin station, indoor fixed to reduce
The cost of position.
In order to solve the above technical problems, the utility model provides a kind of expansion equipment at distributed skin station, including：
The uplink signal of at least one receiving module, wirelessly receiving terminal, and by wired mode to
Distributed skin station returns the uplink signal, to return the uplink signal to server from the distributed skin station, and by institute
Server is stated to position the terminal according to the uplink signal.
Wherein, the expansion equipment is directly connected to the distributed skin station by wired mode；Or
The expansion equipment is connected to the distributed skin station by interchanger in a manner of wired；Or
Expansion equipment of the expansion equipment through intermediate distribution formula skin station is connected to the distributed skin in a manner of wired
Stand.
Wherein, at least one receiving module, wirelessly receive the terminal in the given time and/or
Uplink signal in bandwidth.
Also a kind of expansion system at distributed skin station of the utility model embodiment, including：Distributed skin station, with the distribution
The expansion equipment at least one distributed skin station of formula skin station connection, and the server being connected with the distributed skin station；
The expansion equipment includes the uplink signal of at least one receiving module, wirelessly receiving terminal, and
The uplink signal is returned to distributed skin station by wired mode；
The distribution skin station returns the uplink signal to the server；
The server positions the terminal according to the uplink signal.
Wherein, at least one expansion equipment is directly connected to the distributed skin station by wired mode；Or
At least one expansion equipment is connected to the distributed skin station by interchanger in a manner of wired respectively；Or
Person
At least one expansion equipment is connected by chain-like manner, forms expansion equipment chain, the expansion equipment chain
The expansion equipment of one end, the distributed skin station is directly connected to by wired mode.
Wherein, at least one receiving module, wirelessly receive the terminal in the given time and/or
Uplink signal in bandwidth.
The above-mentioned technical proposal of the utility model has the beneficial effect that：
In the utility model, when carrying out indoor positioning, led to using the expansion equipment including at least one receiving module
The uplink signal of wirelessly receiving terminal is crossed, and the uplink signal is returned to distributed skin station by wired mode,
To return the uplink signal from the distributed skin station to server, and by the server according to the uplink signal to institute
Terminal is stated to be positioned.Since the transmission power of transmitter is larger, design is complex, cost is higher, thus, disposed with encryption
Multiple distributed skin stations including transmitter and receiver are compared, can be to avoid the multiple transmittings of setting using the scheme of the present embodiment
Machine, so as to reduce the cost of indoor positioning.
Brief description of the drawings
Fig. 1 is the first schematic diagram of the expansion equipment at the distributed skin station of the utility model embodiment；
Fig. 2 is the second schematic diagram of the expansion equipment at the distributed skin station of the utility model embodiment；
Fig. 3 is the 3rd schematic diagram of the expansion equipment at the distributed skin station of the utility model embodiment；
Fig. 4 is the expansion equipment of distributed skin exhibition and the first connection diagram of distributed skin exhibition；
Fig. 5 is the expansion equipment of distributed skin exhibition and the second connection diagram of distributed skin exhibition；
Fig. 6 is the expansion equipment of distributed skin exhibition and the 3rd connection diagram of distributed skin exhibition；
Fig. 7 is the schematic diagram of the expansion system at the distributed skin station of the utility model embodiment.
Embodiment
Below in conjunction with drawings and examples, specific embodiment of the present utility model is described in further detail.With
Lower embodiment is used to illustrate the utility model, but is not intended to limit the scope of the present invention.
As it was previously stated, generally, when Pico RRU deployment densities (spacing between i.e. two adjacent Pico RRU) are got over
When big, the precision of indoor positioning is higher.Such as in order to reach the positioning accuracy of 5m, the average deployment density of Pico RRU needs
20m or so.However, Pico RRU actual deployments density is usually in 40~50m or so, it means that, in order to meet indoor positioning
Accuracy requirement (such as 5m or so), Pico RRU deployment needs be encrypted.However, for indoor positioning service, and encrypt
There are the following problems for the deployment of Pico RRU, generally meeting：
1) investment of operator can significantly increase.This investment includes two parts：A part is equipment investment, such as same
Deployment area under, deployment density increases 1 times, it is meant that the number of Pico RRU be before 4 times, and likewise, required
Number, cable and amount of fibre of Hub etc., growth that also can be in proportion.Another part is construction investment because this almost again phase
When in having built a set of new Pico RRU indoor covering systems again.
2) in-door covering needs to re-start planning and designing again, because encryption Pico RRU deployment, if splitting into difference
Cell, then can significantly cause interference increase；And if in order to avoid interference carries out cell combining, if base band merges, then
Baseband processing resource amount can be dramatically increased, it is necessary to reconfigure, and if radio frequency merges, make an uproar it will cause cell uplink bottom
Lifting.In short, since the change of network structure is, it is necessary to re-start network planning network optimization.
To solve the above-mentioned problems, as shown in Figure 1, the distributed skin station of the utility model embodiment expansion equipment (with
Lower abbreviation expansion equipment) 10, including：
At least one receiving module 101, the wirelessly uplink signal of receiving terminal, and pass through wired mode
The uplink signal is returned to distributed skin station, to return the uplink signal from the distributed skin station to server, and by
The server positions the terminal according to the uplink signal.
Generally, Pico RRU need to have two function modules of transmitter and receiver.It is however, indoor fixed in order to carry out
Position business, BBU only need to handle the uplink signal that Pico RRU are received；Also, due to the transmission power of transmitter
It is larger, design is complex, thus cost is higher.Therefore, Pico RRU can be cut, i.e. a kind of extension of design is set
Standby, this equipment need to only retain the function of the receiver of Pico RRU, for the uplink signal of receiving terminal transmitting, so as to aobvious
Writing reduces its equipment cost.Also, expansion equipment is due to there was only receiver, so power consumption is very low, thus it can accomplish volume very
It is small, integrated level is very high, when also allowing for disposing indoors beautify hide.
Further, this expansion equipment can also further be cut, to further reduce the cost.Generally, LTE
The Pico RRU of (Long Term Evolution, Long Term Evolution) standard are in order to meet the requirement of LTE system, generally using two
The designing scheme that hair two is received.However, if this expansion equipment is to be used for positioning service, as shown in Fig. 2, expansion equipment can be only
Using the structure singly received, i.e., a receiving module is only set, to reduce cost.On the other hand, Pico RRU in order to meet LTE hold
The requirement of amount, generally can also support to work at the same time over a number of carriers at the same time, such as support carrier aggregation function, if however, this
Expansion equipment is to be used for positioning service, then can be only with single carrier is supported, to reduce cost.
Fig. 3 show the schematic diagram for the expansion equipment for being provided with two receiving modules.
Since the power consumption of expansion equipment is very low, thus Pico RRU can be connected to by wired mode (such as cable),
Powered.Connection mode mainly has three kinds：
Mode one, expansion equipment 10 are directly connected to distributed skin station 20 by wired mode.
As shown in Figure 4 and Figure 5, if Pico RRU possess multiple network interfaces, the expansion equipment of these encryption deployment can be straight
On the Pico RRU disposed before being connected in succession.Alternatively, the expansion equipment of encryption deployment is first coupled to a small Multi-netmouth
On interchanger 30, Pico RRU, i.e. star-like connection mode are then connected to.
Mode two, as shown in fig. 6, multiple expansion equipments 10 are cascaded in chain, forms expansion equipment chain, the expansion equipment chain
Middle expansion equipment can be described as the expansion equipment at intermediate distribution formula skin station.The expansion equipment of one end of the expansion equipment chain,
Distributed skin station 20 is directly connected to by wired mode.
Mode three, the star-like and mode of chain Hybrid connections.
In practical applications, using this expansion equipment, the cost of Hub and cable can also be reduced, and construction deployment
Difficulty and cost.(1) in terms of equipment material：On the one hand, expansion equipment can be connected solely to Pico RRU, without the Hub that is linked back again,
So as to save the number of Hub and cost.On the other hand, since the expansion equipment of encryption deployment is to be deployed in Pico RRU week
Enclose, without the Hub for the distal end that is linked back again, thus the connection distance that cable zooms out is very short, so as to save the cost of cable.(2)
In terms of construction：On the one hand, Pico RRU are disposed compared to encryption, disposes this expansion equipment, without disposing Hub again, without leading to again
Cross cable and zoom out back Hub, can be directly connected to adjacent Pico RRU, and expansion equipment is due to volume very little, easy to interior
Deployment and beautification are hidden, thus can significantly reduce the difficulty and cost of deployment.
Since this expansion equipment only possesses uplink receiving function, since uplink receiving will not produce adjacent area interference problem, from
Without influencing existing network covering property, without re-starting network planning network optimization again, so as to existing Pico RRU networks
Substantially without influence.
On the one hand, expansion equipment is due to there was only uplink receiving, because without consuming downlink bandwidth again；On the other hand, extend
Equipment is used to position due to only receiving uplink signal, wireless communication is carried out without establishing independent cell, because without real-time
Property processing, so as to which data are passed back BBU using upstream bandwidth more than needed.For example, in TD-LTE system, due to downlink band
Width is far above upstream bandwidth, thus upstream bandwidth is also had more than needed with more, can be with the reception data of transmitting extended equipment.
Further, in order to reduce the demand to upstream bandwidth, thus save the fiber bandwidth between BBU and Hub, with
And the cable bandwidth between Hub and Pico RRU, in the present embodiment, at least one receiving module, passes through wireless side
Formula receives uplink signal of the terminal in the given time and/or in bandwidth.
For example, expansion equipment only returns the uplink receiving data in special time, such as only passback uplink SRS (Sounding
Reference Signal, Sounding Reference Signal) reception data in symbol time；Alternatively, expansion equipment only returns spy
Determine the uplink receiving data in bandwidth, such as only return in the uplink RB (Resource Block, resource block) that this terminal is scheduled
Reception data.Certainly, both schemes can also be combined and carried out.
Since the transmission power of transmitter is larger, design is complex, cost is higher, thus, dispose multiple bags with encryption
The distributed skin station for including transmitter and receiver is compared, using the present embodiment scheme can to avoid setting multiple transmitters, from
And reduce the cost of indoor positioning.
As shown in fig. 7, the expansion system at the distributed skin station of the utility model embodiment, including：Distributed skin station 701,
The expansion equipment 702 at least one distributed skin station being connected with the distributed skin station, and connect with the distributed skin station
The server 703 connect.
The expansion equipment 701 includes the uplink signal of at least one receiving module, wirelessly receiving terminal,
And the uplink signal is returned to distributed skin station by wired mode；The distribution skin station 702 is returned to the server
Pass the uplink signal；The server 703 positions the terminal according to the uplink signal.
Wherein, at least one expansion equipment is directly connected to the distributed skin station by wired mode；Or
At least one expansion equipment is connected to the distributed skin station by interchanger in a manner of wired respectively；Or it is described extremely
A few expansion equipment is connected by chain-like manner, formation expansion equipment chain, the expansion equipment of one end of the expansion equipment chain,
The distributed skin station is directly connected to by wired mode.
Wherein, at least one receiving module, wirelessly receive the terminal in the given time and/or
Uplink signal in bandwidth.
Wherein, the structure of the expansion equipment, and the expansion equipment and the connection relation of distributed skin exhibition can refer to
The description of previous embodiment.
The above is the preferred embodiment of the utility model, it is noted that for the ordinary skill of the art
For personnel, on the premise of principle described in the utility model is not departed from, some improvements and modifications can also be made, these improvement
The scope of protection of the utility model is also should be regarded as with retouching.
Claims (6)
- A kind of 1. expansion equipment at distribution skin station, it is characterised in that including：The uplink signal of at least one receiving module, wirelessly receiving terminal, and by wired mode to distribution Formula skin station returns the uplink signal, to return the uplink signal to server from the distributed skin station, and by the clothes Business device positions the terminal according to the uplink signal.
- 2. expansion equipment according to claim 1, it is characterised in thatThe expansion equipment is directly connected to the distributed skin station by wired mode；OrThe expansion equipment is connected to the distributed skin station by interchanger in a manner of wired；OrExpansion equipment of the expansion equipment through intermediate distribution formula skin station is connected to the distributed skin station in a manner of wired.
- 3. expansion equipment according to claim 1, it is characterised in that at least one receiving module, by wireless Mode receives uplink signal of the terminal in the given time and/or in bandwidth.
- A kind of 4. expansion system at distribution skin station, it is characterised in that including：Distributed skin station, connects with the distributed skin station The expansion equipment at least one distributed skin station connect, and the server being connected with the distributed skin station；The expansion equipment includes the uplink signal of at least one receiving module, wirelessly receiving terminal, and passes through Wired mode returns the uplink signal to distributed skin station；The distribution skin station returns the uplink signal to the server；The server positions the terminal according to the uplink signal.
- 5. system according to claim 4, it is characterised in that at least one expansion equipment is straight by wired mode The distributed skin station is connected in succession；OrAt least one expansion equipment is connected to the distributed skin station by interchanger in a manner of wired respectively；OrAt least one expansion equipment is connected by chain-like manner, forms expansion equipment chain, one end of the expansion equipment chain Expansion equipment, the distributed skin station is directly connected to by wired mode.
- 6. system according to claim 4 or 5, it is characterised in that at least one receiving module, passes through wireless side Formula receives uplink signal of the terminal in the given time and/or in bandwidth.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720475074.XU CN207354626U (en) | 2017-05-02 | 2017-05-02 | A kind of expansion equipment and system at distribution skin station |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720475074.XU CN207354626U (en) | 2017-05-02 | 2017-05-02 | A kind of expansion equipment and system at distribution skin station |
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| CN207354626U true CN207354626U (en) | 2018-05-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111740752A (en) * | 2019-03-25 | 2020-10-02 | 大唐移动通信设备有限公司 | Method and device for processing digital intermediate frequency signal |
-
2017
- 2017-05-02 CN CN201720475074.XU patent/CN207354626U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111740752A (en) * | 2019-03-25 | 2020-10-02 | 大唐移动通信设备有限公司 | Method and device for processing digital intermediate frequency signal |
| CN111740752B (en) * | 2019-03-25 | 2021-04-16 | 大唐移动通信设备有限公司 | Method and device for processing digital intermediate frequency signal |
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