CN101316374A - TD-SCDMA household base station router - Google Patents
TD-SCDMA household base station router Download PDFInfo
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- CN101316374A CN101316374A CNA2007100415565A CN200710041556A CN101316374A CN 101316374 A CN101316374 A CN 101316374A CN A2007100415565 A CNA2007100415565 A CN A2007100415565A CN 200710041556 A CN200710041556 A CN 200710041556A CN 101316374 A CN101316374 A CN 101316374A
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Abstract
The invention discloses a family wireless base-station router which comprises a radio frequency band-pass filter used for filtering out-of-band spuriously emitted and useless signals, a radio frequency transceiver connected with the radio frequency band-pass filter and used for implementing signal processing between radio frequency signals and digital or analog IQ signals, a digital baseband unit connected with the radio frequency transceiver and used for processing signals at the uplink and downlink of the family wireless base-station router, a wireless interface unit connected with the digital baseband unit and an external network and used for realizing the adaptation between an internet protocol and an wireless network protocol, a control and exchange unit used for controlling each composition unit of the family wireless base-station router, a clock distribution unit used for receiving an external clock signal and providing the clock signal to each composition unit of the family wireless base-station router so as to realize the synchronous operation with an external wireless wide area network, and a power supply unit used for powering up each composition unit of the family wireless base-station router.
Description
Technical field
The present invention relates to mobile communication system, more specifically, relate to a kind of TD SDMA (TD-SCDMA) household base station router (TD-SCDMA Home Base Station Router).
Background technology
In the indoor soverlay technique scheme of existing TD-SCDMA, usually adopting microcellulor (Micro) or skin honeycomb (Pico) base station to carry out the indoor wireless signal covers, or, carry out the additional covering of indoor TD-SCDMA signal as the signal source of repeater by introducing macrocellular (or microcellulor) base station signal.But, no matter be the direct radiation of microcellulor (or skin honeycomb), still utilize the repeater technical scheme of macrocellular (or microcellulor) as signal source, they still are the legacy network architectural framework, by radio network controller (RNC) with base station (Node B) and core network (PS (packet switching) territory: SGSN (Serving GPRS Support Node) and GGSN (Gateway GPRS Support Node); CS (circuit switching) territory: MSC (mobile switching centre)) connects.Such network architecture can not adapt to the development trend of following flat IP network evolution.In addition, owing to also need to use all these network equipments, for indoor soverlay technique scheme, its equipment cost is very high.In addition, in the scheme of repeater, the repeater only is the movable signal extension device, can not increase network capacity, also needs the signal source of macrocellular (or microcellulor) base station as indoor application, and therefore, technique scheme can not reduce network equipment cost.
Fig. 1 shows traditional TD-SCDMA network system framework, comprises Radio Access Network (RAN) and core network (CN).RAN handles all and wireless relevant function, and CN carries out the connection and the exchange of audio call, data service, and carries out interface with external network and be connected.For audio call, the RAN by base-station node B and radio network controller (RNC) are formed directly links to each other with PSTN/PLMN by 3G MSC; And, need two nodes (SGSN and GGSN) to realize being connected between RAN and the internet for data service.As mentioned above, in indoor soverlay technique scheme, sampling is directly disposed TD-SCDMA microcellulor (or skin honeycomb) base station and is realized indoor covering, perhaps in the scheme of repeater, introduce TD-SCDMA macrocellular (or microcellulor) base station as its signal source, replenish covering.Though adopt macrocellular and microcellulor (or skin honeycomb) base station in the indoor soverlay technique scheme of TD-SCDMA, its network system framework remains (referring to the Fig. 1) based on legacy network.In addition, although in indoor covering is used, the TD-SCDMA coverage is smaller, and the number of users in the sub-district is also few, and for the internet connected, base-station node B, radio network controller (RNC), SGSN and GGSN remained indispensable.
Summary of the invention
In the present invention, at the problems referred to above, proposed following technical scheme: (1) improves network system framework, and it is built into the network of implementing distributed similar 4G architectural framework in the 3G environment; (2) by using IETF and/or IEEE Internet Protocol, can realize that a simple access point (being similar to 802.11 access) connects, and this access point only links to each other with IP core network, the miscellaneous equipment in the core network is standard I P routing device.
In the present invention, base-station node B, RNC, SGSN, GGSN are integrated into single equipment, and smart antenna and the baton handover functions such as (baton handover) of TD-SCDMA have been cancelled, power control, packet scheduling, switching controls and the dynamic channel allocation scheduling algorithm requirement relevant with them with simplification.
According to the present invention, a kind of wireless family base station router has been proposed, realized the basic function of base-station node, radio network controller, Serving GPRS Support Node and Gateway GPRS Support Node, described wireless family base station router comprises: radio frequency band filter is used for outer spurious emissions of filtering band and the outer unwanted signal of band; Radio-frequency (RF) transceiver links to each other with radio frequency band filter, is used to carry out the signal processing between radiofrequency signal and numeral or the analog I signal; Digital baseband unit links to each other with radio-frequency (RF) transceiver, is used to carry out the signal processing on the described wireless family base station router uplink and downlink direction; Radio interface unit links to each other with external network with digital baseband unit, is used to realize adaptive between Internet Protocol and the wireless network protocol; Control and crosspoint are used for each component units of described wireless family base station router is controlled; The clock distribution unit is used to receive external timing signal, and provides it to each component units of described wireless family base station router, with the simultaneous operation between realization and the external wireless wide area network; And power subsystem, be used for each component units power supply to described wireless family base station router.
Preferably, described wireless family base station router also comprises: emission/reception change over switch, between described radio frequency band filter and described radio-frequency (RF) transceiver, the time division duplex that is used to realize transmitting and receiving between the pattern switches.
Preferably, described radio frequency band filter links to each other with the external radio frequency antenna by a radio-frequency antenna port.More preferably, described radio frequency band filter is a ceramic filter.More preferably, described external radio frequency antenna is omnidirectional antenna or directive antenna.
Preferably, described wireless family base station router also comprises: built-in one pole stub antenna links to each other with described radio frequency band filter.
Preferably, described radio-frequency (RF) transceiver is carried out following operation at signal to be transmitted: the IQ data from digital baseband unit are received, launch shaping filter, Digital Up Convert, digital-to-analogue conversion, rf filtering amplification, transform to radio frequency and the amplification of final stage signal; And pin is carried out following operation to the received signal: small-signal is carried out down-conversion, intermediate frequency filtering amplification, analog-to-digital conversion, digital conversion, the channel filtering down after low noise amplifies and is formatted as the IQ signal that is transferred to digital baseband unit.
Preferably, described digital baseband unit is carried out following signal processing: signal multiplexing/demultiplexing, encrypt/decrypt, coding/decoding, frame processing, scrambling, spread spectrum, measurement processing, air interface are synchronously, layer 2 and layer 3 handle.
Preferably, described radio interface unit links to each other with described external network by the RJ-45 adapter.More preferably, described external network is xDSL or ethernet backbone.More preferably, described Internet Protocol is IETF and/or IEEE Internet Protocol.More preferably, described wireless network protocol is the 3GPP standard agreement.
Preferably, described control and crosspoint are carried out following operation: time division duplex Switch Control, power control, network authentication, access control and the automatic configuration process of network.
Preferably, described clock distribution unit receives described external timing signal from the external GPS receiver.
Preferably, described clock distribution unit extracts synchronizing clock signals from be installed in the inner or outside mobile module of described wireless family base station router, as described external timing signal.
Preferably, described clock distribution unit obtains clock signal by energy bit-detection mode, as described external timing signal.
Preferably, described power subsystem links to each other with external power source by DC or AC power supplies port.
Preferably, described wireless family base station router also comprises: the diagnosis maintenance port, link to each other with crosspoint with described control, and be used to provide this locality diagnosis and maintenance management to described wireless family base station router.
Preferably, described wireless family base station router is used for the TD-SCDMA network.
The applicant has proposed household base station router BSR notion first, and has planned to come into effect CDMA household base station router BSR and WCDMA household base station router BSR.In the present invention, the applicant has further proposed to be applied to the TD-SCDMA household base station router BSR in the indoor covering of TD-SCDMA.Because the particular technology characteristic of TD-SCDMA (such as: the employing of smart antenna, time division duplex, joint-detection and baton handover etc.), there are bigger difference in TD-SCDMABSR proposed by the invention and CDMA and WCDMA BSR.At first, cancelled smart antenna and simplified the algorithm requirement relevant with it.Secondly, utilize the applicant to be used in synchronized algorithm among the CDMA BSR, solve TD-SCDMA BSR stationary problem.In addition, at TD-SCDMA BSR stationary problem, also mention the use of technological means such as GPS (global positioning system), TD-SCDMA mobile module and energy bit-detection among the present invention.
Compare with existing indoor soverlay technique scheme, by base-station node B, RNC, SGSN, GGSN are integrated into single equipment, and using existing access network and transmission infrastructure (xDSL/FTTH (x Digital Subscriber Line/Fiber to the home)) network, cost of the present invention is very low.In addition, by supporting the handover between TD-SCDMA household base station router BSR and the existing TD-SCDMA sub-district, from indoor move to the outdoor process (otherwise or), calling and session still can continue.Owing to adopted flat IP architectural framework, also can realize low-down network delay.
Description of drawings
By below in conjunction with description of drawings the preferred embodiments of the present invention, will make above-mentioned and other purpose of the present invention, feature and advantage clearer, wherein:
Fig. 1 shows traditional TD-SCDMA network system Organization Chart.
Fig. 2 shows TD-SCDMA BSR illustrative view of functional configuration.
Fig. 3 shows TD-SCDMA BSR module and forms structural representation.
Fig. 4 shows TD-SCDMA BSR and existing TD-SCDMA network integration schematic diagram.
Fig. 5 shows the schematic diagram of TD-SCDMA BSR Application Example one: a kind of average family is used.
Fig. 6 shows the schematic diagram of TD-SCDMA BSR Application Example two: a kind of public/commercial the application.
Embodiment
To a preferred embodiment of the present invention will be described in detail, having omitted in the description process is unnecessary details and function for the present invention with reference to the accompanying drawings, obscures to prevent that the understanding of the present invention from causing.
The present invention proposes a kind of new TD-SCDMA network system framework, be used for the indoor soverlay technique scheme of TD-SCDMA.In the present invention, base-station node B, RNC, SGSN and GGSN are integrated into single equipment, and directly link to each other with ADSL (ADSL (Asymmetric Digital Subscriber Line)) or optical-fiber network by the RJ-45 port.In the present invention, this equipment is called TD-SCDMA household base station router (BSR, H-BSR), it meets following " flat IP " notion.
Fig. 2 shows the functional block diagram of TD-SCDMA BSR.TD-SCDMA is a member in the IMT-2000 family, compares with WCDMA with other two standard CDMA 2000, because it has used smart antenna, base-station node B is divided into two parts like this: outdoor unit and indoor unit.
Outdoor unit comprises multi-antenna array (each sector 6-8 antenna), RF filter, power amplifier and low noise amplifier and the TX-RX change over switch that is used for the TDD function.This element is finished the reception and the emission function of wireless signal, comprises the signal filtering and the amplification of system's needs.
Indoor unit is made of RF transceiver and digital processing part and corresponding control interfaces plate.The functions such as signal encoding, modulation and frequency conversion in the TD-SCDMA system have been finished in this unit, and it is the key point of TD-SCDMA, and all radio operations relevant with TD-SCDMA are all here finished.
In order further to simplify network system framework and to reduce equipment cost, the present invention combines outdoor unit and indoor unit, thereby overall network equipment (the indoor and outdoors unit of base-station node B, RNC, SGSN, GGSN) is integrated into single equipment.Household base station router BSR has cancelled smart antenna, using traditional antenna to carry out TD-SCDMA transmits and receives, but also removed baton handover function, and simplified requirement to dynamic channel allocation, joint-detection and power control etc. based on smart antenna.Therefore, the cost of whole single integrated equipment will significantly reduce.In addition, again because they all are integrated in the little box, and volume is little, in light weight, can also realize the simple low-cost deployment of installing like this.
Fig. 3 shows TD-SCDMA BSR module and forms structural representation, wherein show RF band pass filter (BPF), RF transceiver (RFU), digital baseband unit (BBU), TD-SCDMA interface unit (TIU), control and crosspoint (CSU), clock distribution unit (CDU), power subsystem (PSU) and 5 outside ports (that is, RF antenna port, CDU external clock port, DC or AC power supplies port, the RJ-45 port that is used for 10/100 Base T and RS 232 diagnosis maintenance ports).
BPF is the ceramic filter (also can be made by other material) between antenna element and RFU, and it has following function: on the TX direction, filtering is because the outer spurious emissions of the nonlinear characteristic of RF assembly and the caused band of LO signal leakage; On the RX direction, the outer unwanted signal of filtering band.
RFU is responsible between RF signal and numeral (or simulation) the IQ signal, the signal processing on reception and transmit direction.On the TX direction, its function comprises amplifies, transforms at last again radio frequency and final stage signal and amplify reception, emission shaping filter (RRC), Digital Up Convert, DA conversion, RF filtering from the IQ data of BBU; On the RX direction, its function comprises carries out down-conversion, IF filtering amplification, AD conversion, digital conversion, the channel filtering (RRC) down after low noise amplifies and is formatted as the IQ signal that is transferred to BBU small-signal.
The TX-RX change over switch that is used for TDD (time division duplex) is controlled by CSU between BPF and RFU.
BBU carries out the signal processing on the TD-SCDMA household base station router uplink and downlink direction, and finishes following task: signal multiplexing/demultiplexing, encrypt/decrypt, coding/decoding, frame processing, scrambling, spread spectrum, measurement processing, air interface are synchronously, L2 and L3 handle.
TIU is a TD-SCDMA BSR interface unit, links to each other with xDSL (x Digital Subscriber Line) or ethernet backbone by the RJ-45 adapter, is used for IETF and/or IEEE Internet Protocol are converted to the 3GPP standard agreement.
CSU is central authorities' control and crosspoint, be used to control and manage all processing of TD-SCDMA household base station router, and carry out following function: TX-RX time division duplex Switch Control, power control, network authentication, access control and the automatic configuration process of network etc.
CDU is the clock distribution unit, and it receives external timing signal (such as 10Mhz), and provides it to the module that needs in the TD-SCDMA household base station router, to realize and outside wide area TD-SCDMA network synchronous.
Clock signal can come from external GPS receiver (or the GPS receiver is installed by portion) within it, and described GPS receiver can be shared by a plurality of household base station router BSR.Perhaps, described clock signal can be according to other mode feed-ins.Such as, from be installed in the inner or outside mobile module of household base station router, extract synchronizing clock signals, or utilize mode such as energy bit-detection to obtain clock signal.
The synchronous clock operation method that the applicant has been used among the CDMA BSR also can be used in the synchronised clock extraction of TD-SCDMA BSR.
PSU links to each other with outside 220 volts, 50Hz (optional 110 volts, 60Hz) AC power supplies, and AC voltage is changed and rectification, with the output of generation 5V and 12V (other numerical value also are optional), thereby imposes on each unit module of household base station router.Have under the situation of AC/DC converting unit in that TD-SCDMA BSR is additional, PSU also can be regarded as the DC power distribution unit.
The division of above-mentioned each module is carried out in order to narrate convenient.During actual system design, they can be reconfigured, be divided into one or several new module.
The antenna of TD-SCDMA BSR is built-in one pole stub antenna, and this antenna is isotropic basically, has less gain, so that the equal covering to all directions is provided.Perhaps, can use the exterior antenna interface, omnidirectional antenna (if in order to strengthen the signal on the specific direction, also can adopt directive antenna) is installed.The present invention does not support smart antenna, in general, does not equally use the double antenna at space diversity yet.
The RJ-45 port is used for bridge home base station router BSR and xDSL/FTTH (Fiber to the home) network.
Fig. 4 shows TD-SCDMA BSR is integrated into the schematic diagram that has now in the TD-SCDMA network.TD-SCDMA household base station router BSR according to the present invention is integrated in the existing TD-SCDMA network, so that provide audio call and high-speed data service for TD-SCDMA user.The TD-SCDMA household base station router BSR network design of right half part among Fig. 4 is linked to each other with existing TD-SCDMA network for passing through some commercial network equipment, provide speech and data service the user in the TD-SCDMA BSR coverage.Being integrated and connected like this is not influence existing TD-SCDMA network.
These supplementary equipment therefore comprise BSR SGW (BSG), BSR voice gateways fire compartment wall, ownership cell server and mobile IP home agent (HA).Therefore these equipment can reduce the BSR network cost all based on the commercial hardware platform.
Fig. 5 shows TD-SCDMA BSR Application Example one: the BSR network diagram that a kind of average family is used.In the average family environment, can by modulator-demodulator TD-SCDMA BSR be linked to each other with the xDSL/FTTH network simply.Connected mode like this, it is similar being connected with home computer internet at present, simple and convenient.
Fig. 6 shows TD-SCDMA BSR Application Example two: a kind of public/the commercial BSR network diagram of using.In public/business environment, such as the business office building, a plurality of TD-SCDMA BSR generally install at each floor in building in government bodies' (comprising enterprises and institutions etc.), and they are directly connected to 10/100 Base T port of Ethernet respectively.In general, the Ethernet of these 10/100 Base T (may be gigabit Ethernet sometimes) is to be provided by building bottom or near Ethernet switch.
So far invention has been described in conjunction with the preferred embodiments.Should be appreciated that those skilled in the art can carry out various other change, replacement and interpolations under the situation that does not break away from the spirit and scope of the present invention.Therefore, scope of the present invention is not limited to above-mentioned specific embodiment, and should be limited by claims.
Claims (19)
1. wireless family base station router has been realized the basic function of base-station node, radio network controller, Serving GPRS Support Node and Gateway GPRS Support Node, and described wireless family base station router comprises:
Radio frequency band filter is used for outer spurious emissions of filtering band and the outer unwanted signal of band;
Radio-frequency (RF) transceiver links to each other with radio frequency band filter, is used to carry out the signal processing between radiofrequency signal and numeral or the analog I signal;
Digital baseband unit links to each other with radio-frequency (RF) transceiver, is used to carry out the signal processing on the described wireless family base station router uplink and downlink direction;
Radio interface unit links to each other with external network with digital baseband unit, is used to realize adaptive between Internet Protocol and the wireless network protocol;
Control and crosspoint are used for each component units of described wireless family base station router is controlled;
The clock distribution unit is used to receive external timing signal, and provides it to each component units of described wireless family base station router, with the simultaneous operation between realization and the external wireless wide area network; And
Power subsystem is used for each component units power supply to described wireless family base station router.
2. wireless family base station router according to claim 1 is characterized in that also comprising:
Emission/reception change over switch, between described radio frequency band filter and described radio-frequency (RF) transceiver, the time division duplex that is used to realize transmitting and receiving between the pattern switches.
3. wireless family base station router according to claim 1 and 2 is characterized in that described radio frequency band filter links to each other with the external radio frequency antenna by a radio-frequency antenna port.
4. wireless family base station router according to claim 3 is characterized in that described radio frequency band filter is a ceramic filter.
5. wireless family base station router according to claim 3 is characterized in that described external radio frequency antenna is omnidirectional antenna or directive antenna.
6. wireless family base station router according to claim 1 and 2 is characterized in that also comprising:
Built-in one pole stub antenna links to each other with described radio frequency band filter.
7. wireless family base station router according to claim 1 and 2 is characterized in that described radio-frequency (RF) transceiver is at operating below the signal to be transmitted execution: the IQ data from digital baseband unit are received, launch shaping filter, Digital Up Convert, digital-to-analogue conversion, rf filtering amplification, transform to radio frequency and the amplification of final stage signal; And pin is carried out following operation to the received signal: small-signal is carried out down-conversion, intermediate frequency filtering amplification, analog-to-digital conversion, digital conversion, the channel filtering down after low noise amplifies and is formatted as the IQ signal that is transferred to digital baseband unit.
8. wireless family base station router according to claim 1 and 2 is characterized in that described digital baseband unit carries out following signal processing: signal multiplexing/demultiplexing, encrypt/decrypt, coding/decoding, frame processing, scrambling, spread spectrum, measurement processing, air interface are synchronously, layer 2 and layer 3 handle.
9. wireless family base station router according to claim 1 and 2 is characterized in that described radio interface unit links to each other with described external network by the RJ-45 adapter.
10. wireless family base station router according to claim 9 is characterized in that described external network is xDSL or ethernet backbone.
11. wireless family base station router according to claim 9 is characterized in that described Internet Protocol is IETF and/or IEEE Internet Protocol.
12. wireless family base station router according to claim 9 is characterized in that described wireless network protocol is the 3GPP standard agreement.
13. wireless family base station router according to claim 1 and 2 is characterized in that the following operation of described control and crosspoint execution: time division duplex Switch Control, power control, network authentication, access control and the automatic configuration process of network.
14. wireless family base station router according to claim 1 and 2 is characterized in that described clock distribution unit receives described external timing signal from the external GPS receiver.
15. wireless family base station router according to claim 1 and 2, it is characterized in that described clock distribution unit extracts synchronizing clock signals from be installed in the inner or outside mobile module of described wireless family base station router, as described external timing signal.
16. wireless family base station router according to claim 1 and 2 is characterized in that described clock distribution unit obtains clock signal by energy bit-detection mode, as described external timing signal.
17. wireless family base station router according to claim 1 and 2 is characterized in that described power subsystem links to each other with external power source by DC or AC power supplies port.
18. wireless family base station router according to claim 1 and 2 is characterized in that also comprising:
The diagnosis maintenance port links to each other with crosspoint with described control, is used to provide this locality diagnosis and maintenance management to described wireless family base station router.
19. wireless family base station router according to claim 1 and 2 is characterized in that described wireless family base station router is used for the TD-SCDMA network.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2007100415565A CN101316374A (en) | 2007-05-30 | 2007-05-30 | TD-SCDMA household base station router |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2007100415565A CN101316374A (en) | 2007-05-30 | 2007-05-30 | TD-SCDMA household base station router |
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| CN101316374A true CN101316374A (en) | 2008-12-03 |
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| CNA2007100415565A Pending CN101316374A (en) | 2007-05-30 | 2007-05-30 | TD-SCDMA household base station router |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2011003334A1 (en) * | 2009-07-06 | 2011-01-13 | 华为技术有限公司 | Communication method, device and system |
| CN102143612A (en) * | 2011-03-30 | 2011-08-03 | 京信通信系统（中国）有限公司 | Fusion type home base station equipment |
| CN101854205B (en) * | 2009-04-02 | 2013-03-20 | 联芯科技有限公司 | Uplink synchronization method and device and network equipment |
| CN101730303B (en) * | 2009-11-19 | 2013-03-27 | 杭州竞天数码科技有限公司 | System compatible with multiple wireless transmission modules and implementation method thereof |
| CN103619080A (en) * | 2013-12-06 | 2014-03-05 | 德明通讯（上海）股份有限公司 | Low-cost single-internet-access LTE routing device and control method |
| CN103647721A (en) * | 2013-12-12 | 2014-03-19 | 常州面包电子科技有限公司 | Wireless router with integration of exercise timing function |
| CN108063728A (en) * | 2016-11-07 | 2018-05-22 | 镇江常畅光伏电子有限公司 | The double antenna router that a kind of performance is stablized |
| CN110113266A (en) * | 2019-05-21 | 2019-08-09 | 山东有人信息技术有限公司 | A kind of modular 4G router and its working method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101854205B (en) * | 2009-04-02 | 2013-03-20 | 联芯科技有限公司 | Uplink synchronization method and device and network equipment |
| WO2011003334A1 (en) * | 2009-07-06 | 2011-01-13 | 华为技术有限公司 | Communication method, device and system |
| US9635588B2 (en) | 2009-07-06 | 2017-04-25 | Huawei Technologies Co., Ltd. | Method and apparatus for coordinated multi-point transmission with negotiated quality of service |
| CN101730303B (en) * | 2009-11-19 | 2013-03-27 | 杭州竞天数码科技有限公司 | System compatible with multiple wireless transmission modules and implementation method thereof |
| CN102143612A (en) * | 2011-03-30 | 2011-08-03 | 京信通信系统（中国）有限公司 | Fusion type home base station equipment |
| WO2012129936A1 (en) * | 2011-03-30 | 2012-10-04 | 京信通信系统（中国）有限公司 | Converged home node b device |
| CN103619080A (en) * | 2013-12-06 | 2014-03-05 | 德明通讯（上海）股份有限公司 | Low-cost single-internet-access LTE routing device and control method |
| CN103619080B (en) * | 2013-12-06 | 2016-06-29 | 德明通讯（上海）有限责任公司 | A kind of low cost list network interface LTE routing device and control method |
| CN103647721A (en) * | 2013-12-12 | 2014-03-19 | 常州面包电子科技有限公司 | Wireless router with integration of exercise timing function |
| CN108063728A (en) * | 2016-11-07 | 2018-05-22 | 镇江常畅光伏电子有限公司 | The double antenna router that a kind of performance is stablized |
| CN110113266A (en) * | 2019-05-21 | 2019-08-09 | 山东有人信息技术有限公司 | A kind of modular 4G router and its working method |
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Application publication date: 20081203 |