CN101795459A - Wireless communication indoor coverage equipment and interference avoidance/coordination method thereof - Google Patents
Wireless communication indoor coverage equipment and interference avoidance/coordination method thereof Download PDFInfo
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Abstract
The invention discloses wireless communication indoor coverage equipment and an interference avoidance/coordination method thereof. The equipment of the invention consists of an access unit, a firewall, an equipment identification unit, a basic configuration information storage unit, a user operation unit, an interference avoidance/coordination processing unit, an interference intensity indicating unit, an intermediate frequency/base band processing subsystem, a radio-frequency subsystem and an antenna feeder subsystem. The method of the invention provides two schemes according to the difference of the acquired scheduling information for solving the interference problem under a complex scene. The first scheme comprises the following steps: acquiring macro cell resource distribution information, detecting and judging whether the periphery has the same equipment, detecting and distinguishing interference sources by using a silent period, and periodically detecting the available resources. The second scheme comprises the step of periodically detecting the available resources by using resource distribution information periods of the adjacent same equipment. The equipment and the method can self-perceive and self-configure a complex electromagnetic environment by reasonably utilizing the scheduling information and fully complexing frequency spectrum resources to form a high-speed indoor coverage network capable of effectively avoiding the interference problem.
Description
Technical field
The present invention relates to a kind of novel cordless communication network indoor coverage equipment, relate to simultaneously when this kind equipment and macrocellular user coexist and the method for interference avoidance/coordination during a plurality of this kind coexistence, belong to wireless communication technology field.
Background technology
At present, along with 3G (3-G (Generation Three mobile communication system)) broad development in the world, number of users constantly increases, and the user improves day by day to the demand of high-speed data service simultaneously, thereby the power system capacity of mobile communications network, coverage and quality all will reach higher standard.In addition, according to statistics, 70% mobile service occurs in indoor, and because the loss that wall produces makes the indoor signal covering relatively poor.Therefore, indoor covering certainly will become emphasis and the difficult point that 3G and later mobile communications network thereof are built.
Indoor distributed system is adopted in traditional indoor covering, need carry out the indoor wireless electromagnetic environment by mobile operator early stage measures, select for use corresponding signal source, connecting line and other equipment at house wiring according to measurement result, later stage still needs assistant director's maintenance management, cost height, length consuming time and shortage flexibility.In order to improve the indoor coverage effect of mobile communications network, increase power system capacity simultaneously, realize mobile broadbandization, femtocell (femtocell) or home base station (Home eNodeB) technology become the hot spot technology that solves indoor covering problem.
Home eNodeB directly is positioned over need to be strengthened in the indoor environment that communication covers, is mainly used in family and office in etc., by the core network of connected modes such as existing ADSL, LAN or optical fiber access mobile operator.In addition, the Home eNodeB covering radius is little, and transmitting power is little, and electromagnetic radiation is low, environmental protection; Simple in structure, cost is low, can plug and play, and the user can acquire voluntarily; Make full use of the characteristics of indoor environment, realize that dramatically frequency spectrum resource is multiplexing, can be the user data service at a high speed is provided; Be applicable to multiple mobile cellular communication system, and user terminal need not integrated bimodulus standard.
Yet some potential problems that household base station technology exists have limited its industrialization process dramatically.Interference problem is one of topmost problem wherein, and this is because Home eNodeB is a PnP device, does not have the professional to carry out a large amount of on-the-spot test and network planning and optimization in advance.The interference problem of Home eNodeB mainly contains following two aspects:
(1) interference between Home eNodeB and the macrocellular user.Around the macrocellular user appears at Home eNodeB, and when still providing service to it by macrocell base stations, if Home eNodeB uses identical Resource Block (minimum unit of resource allocation and scheduling in the mobile cellular communication technology) with macrocell base stations, will there be strong mutual interference between Home eNodeB and the macrocellular user, influences intercommunication (macrocellular user and Home eNodeB belong to same operator);
(2) mutual interference between the Home eNodeB.When a plurality of Home eNodeB geographical position that belongs to same operator is contiguous,, very easily form the self-interference system owing to be operated in same standard, same frequency range.
At present, the method for solution Home eNodeB interference problem mainly contains:
(1) macrocellular of same operator adopts different frequency ranges with Home eNodeB.Obviously this can waste a large amount of frequency spectrum resources, reduces total system capacity greatly, and does not solve the mutual interference problem between a plurality of contiguous Home eNodeB;
(2) increase center control nodes Home eNodeB and macrocellular are carried out centralized dispatching.This need change existing network, comprises change existing procotol, mobile network's framework and user terminal.These all should adapt to existing mobile communications network with Home eNodeB as far as possible and disagree.More crucial is, if when a large amount of Home eNodeB is arranged in the macrocellular, data volume is huge in the time of can causing centralized dispatching, and the processing time is long, is unfavorable for that Home eNodeB carries out real-time resource management and distribution, influences user experience.
As seen, aspect the interference problem of research Home eNodeB, lack a kind of practicality height, workable solution, seriously restricted the extensive use of Home eNodeB.
Summary of the invention
The present invention proposes a kind of novel cordless communication network indoor coverage equipment, comprise the module diagram of this equipment.Simultaneously, the present invention has provided the entire flow how a kind of this equipment solves interference problem, is applicable to multiple mobile communications network (comprising 2G, 3G and IMT-A).The present invention has solved the interference problem when this kind equipment and macrocellular user coexistence and a plurality of this kind coexistence emphatically, has promoted the resistance to overturning of network.Simultaneously controlling cost and minimizing on the basis of additional system expense, this kind equipment can plug and play, can be to complex electromagnetic environments from perception, self-configuring, and a plurality of this kind equipment can constitute the indoor overlay network of the high speed that effectively avoids interference problem.
The wireless communication indoor coverage equipment that the present invention carried mainly comprises access unit, fire compartment wall, recognition of devices unit, basic configuration information memory cell, user operation unit, interference avoidance/Coordination Treatment unit, interference strength indicating member, intermediate frequency/baseband, Radio Frequency Subsystem, antenna feeder subsystem composition, and each module major function is as follows:
● access unit (102): realization is connected with mobile communications network, by connection line (comprising all kinds of broadband lines) equipment is connected with IP network, and then is connected to the mobile communication core net.The major function of finishing is control information transmission and user data information;
● fire compartment wall (103): be used to protect illegal invasion, in order to avoid the lawless person distorts and virus attack the bad of facility information.If when operator was this kind equipment disposition gateway, this module also can be built in the gateway;
● recognition of devices unit (104): be used to judge whether to allow equipment access mobile core net;
● basic configuration information memory cell (105): the available resource information that the service-user information and 107 that storage is obtained by 102 basic control informations that obtain, 104 device identifying informations that obtain, 106 is obtained, for the processing of wireless signal provides control information;
● user operation unit (106): be used to the information and the instruction input of the equipment of realizing, information output and alarm, facility switching control;
● interference avoidance/Coordination Treatment unit (107): will handle accordingly from 108 or 109 signals that obtain, for equipment provides available resource information, as the essential information of resource allocation;
● intermediate frequency/baseband (108): mainly finish the physical layer process process of digital-to-analogue conversion, descending transmission, up reception and the closed-loop process process of physical layer;
● Radio Frequency Subsystem (109): by transceiver, duplex module, power amplifier module, small-signal close/shunt module forms;
● interference strength indicating member (110): be used to measure and the total available resources of display device current location and the ratio of suffered interference.The a series of processing of 107 processes can obtain interior average interference value and the total available resources of equipment work frequency range of current time, and this module will be calculated its ratio and show.The user can adjust the position of equipment according to the show state of this module, to obtain good equipment coverage effect;
● antenna feeder subsystem (111): form by antenna, feeder line, can select single antenna or many antennas for use.The annexation of each module:
Access unit (102) connects fire compartment wall (103) successively, basic configuration information memory cell (105), interference avoidance/Coordination Treatment unit (107), intermediate frequency/Base-Band Processing subelement (108), Radio Frequency Subsystem (109), antenna feeder subsystem (111);
IP network (101) connects access unit (102);
Recognition of devices unit (104) connects fire compartment wall (103) and basic configuration information memory cell (105); Basic configuration information memory cell (105) connects user operation unit (106), intermediate frequency/baseband (108);
Interference avoidance/Coordination Treatment unit (107) connect Radio Frequency Subsystem (109), interference strength indicating member (110).
Wherein, interference avoidance/coordinate scheme that adopt interference avoidance/Coordination Treatment unit (107) is divided into following two concrete schemes according to the difference of obtainable schedule information:
(1) scheme 1:
In scheme 1, present device can be obtained the resource allocation information of macrocellular, but can't obtain the resource allocation information of contiguous equipment of the same race by the wire transmission of IP network or the wireless signal of reception and demodulation macrocellular.Shown in invention accompanying drawing 3, present device directly is connected into IP network, inserts core net by the mobile communications network IAD, does not have the upper strata Control Node to provide the resource allocation information of contiguous equipment of the same race for it.The major advantage of this scheme is: the available resources number increases greatly, and spatial multiplexing gain is obvious;
(2) scheme 2:
In scheme 2, present device can be obtained the resource allocation information of macrocellular by the method for scheme 1, can obtain the resource allocation information of contiguous equipment of the same race simultaneously.Shown in invention accompanying drawing 4 (this schematic diagram upper strata Control Node is at user side), present device is connected with the upper strata Control Node, the upper strata Control Node is divided into different logical subnetworks by the geographical position of equipment with equipment, the equipment room of same logical subnetwork is with the exchange resource assignment information, the upper strata Control Node inserts IP network, and then the access mobile communication core net.The major advantage of this scheme is: spatial multiplexing gain is big, can make full use of the usable spectrum resource.
Because scheme 1 has points of resemblance on idiographic flow with scheme 2, for simplicity, the present invention describes scheme 1 and scheme 2 identical steps in the lump, can clearly mark when it adopts different step and be distinguished.
Concrete steps are as follows:
(1) from basic configuration information memory cell (105), obtains synchronizing information.
(2) equipment obtains the macrocellular resource allocation information in real time, in conjunction with the frequency spectrum perception technology, detects with some cycles on this basis, upgrades the available resource information of this equipment, thereby realizes interference avoidance/coordination.This cycle can preset, and also can equipment calculates behind the concrete environment to draw around detecting.
(3) in step (2), the resource allocation information of macrocellular comprises the resource allocation information of macrocellular up-downgoing, uses Macro UL RA (resource allocation) and Macro DL RA to represent among the present invention respectively.Specifically, comprise macrocellular user's (MU) numbering and different MU operating position in the up-downgoing resource.After present device is obtained Macro UL RA and Macro DL RA, on the synchronous basis of macrocellular, utilize frequency spectrum perception technology for detection macrocellular idling-resource, i.e. unallocated resource of giving MU in Macro UL/DL RA.If it is unoccupied to detect the macrocellular idling-resource, near the no equipment of the same race of this equipment then is described, carry out step (4); Otherwise illustrating near this equipment has equipment of the same race, carries out step (5).
(4) further, after the step (3),, only need the interference between consideration equipment and the macrocellular according near no equipment of the same race testing result explanation equipment this moment of step 3.When the MU uplink, utilize the frequency spectrum perception technology to detect within a certain period of time, to judge which resource is occupied in current macrocellular resource allocation cycle.On this basis, the Macro UL RA that contrast is obtained is the MU numbering of proximity of devices as can be known, can determine the descending resource that takies of contiguous MU with Macro DL RA contrast again.By said method, equipment can know the up-downgoing resource operating position of the MU that disturbs each other with equipment, is the resource that other MU distribute thereby avoid using these resources and use macrocellular, reaches also to have obtained spatial multiplexing gain when dodging the interference purpose.Below the technical essential that relates in the said process in (4) is described in detail.The signal to be detected of frequency spectrum perception technology is from Radio Frequency Subsystem (109) or intermediate frequency/baseband (108).Frequency spectrum perception can detect on all resources, and required time is longer; Also can be according to Macro UL RA, to detect distributing on the resource of MU, more excellent but cycle of need of performance is adjusted detected parameters.Can distinguish different resource by the frequency spectrum perception technology, and judge the operating position of each resource.
(5) further, after the step (3), near the equipment equipment of the same race is arranged this moment according to the testing result explanation of step 3, not only need the interference between consideration equipment and the macrocellular this moment, also will consider the interference between the equipment of the same race.If can distinguish above-mentioned two kinds of interference, equipment can obtain more available resources, thereby increases spatial multiplexing gain.All present devices of access network and user thereof mourn in silence in the section at one time, and promptly the said equipment suspends the transmitting-receiving of all signals simultaneously in one specific period, create the testing environment that has only macrocellular to disturb with this.Time of mourning in silence and rule can be by the unified quiet period of regulation in the frame format of communication protocol regulation, and perhaps certain time point after Macro UL/DL RA upgrades begins quiet period (needing the scheduling of upper strata Control Node).During quiet period, when the MU uplink, utilize the frequency spectrum perception technology to detect within a certain period of time, to judge which resource is occupied in current macrocellular resource allocation cycle.On this basis, the Macro UL RA that contrast is obtained is the MU numbering of proximity of devices as can be known, can determine the descending resource that takies of contiguous MU with Macro DL RA contrast again.So far, equipment can know the up-downgoing resource operating position of the MU that disturbs each other with equipment, and equipment saves as the macrocellular list of available resources with macrocellular for the resource that other MU distribute, as the foundation of further detection available resources.
Subsequent step two schemes are different, the following describes the concrete steps of scheme 1 and scheme 2.
Scheme 1:
(6) further, after the step (5), after quiet period finishes, equipment recovers operate as normal, according to the actual list of available resources after upgrading is the DU allocated sub-channels, and the part consistent with the last cycle in the actual list of available resources is the DU Resources allocation by the Resource Allocation Formula of last one-period; Actual available resources are compared with the last cycle when reducing, and are not all corresponding D U according to type of service and reduce the resource of last one-period for its distribution; When user's request increases, according to the queuing criterion, preferentially satisfy original user's request, newly-increased user's request can not obtain enough resources.In the time of the equipment operate as normal, on the basis of the macrocellular list of available resources that step (5) obtains, adopt the frequency spectrum perception technology to detect available resources with some cycles, the actual list of available resources of real-time update.The equipment receiving and transmitting signal carries out simultaneously with detecting, so equipment should adopt two cover dual-mode antennas, with accuracy and the high efficiency that guarantees to detect.By step (5), each equipment can obtain the macrocellular list of available resources, on the available resources of this tabulation, utilize the frequency spectrum perception technology further to detect available resources, the testing result of this moment is a certain available resource of having considered that equipment of the same race disturbs, and it is saved as actual list of available resources.This sense cycle weak point of comparing with the sense cycle of step (5), after each sense cycle with the actual list of available resources of having preserved relatively, upgrade tabulation when change is arranged.
Scheme 2:
(6) further, after the step (5), after quiet period finishes, equipment recovers operate as normal, according to the actual list of available resources after upgrading is the DU allocated sub-channels, and the part consistent with the last cycle in the actual list of available resources is the DU Resources allocation by the Resource Allocation Formula of last one-period; Actual available resources are compared with the last cycle when reducing, and are not all corresponding D U according to type of service and reduce the resource of last one-period for its distribution; When user's request increases, according to the queuing criterion, preferentially satisfy original user's request, newly-increased user's request can not obtain enough resources.Each equipment can also obtain the resource use information of other equipment of the same race from the upper strata Control Node except previous step detects the macrocellular list of available resources of acquisition suddenly.The upper strata Control Node can be positioned at the core net place of user side or carrier network.Perfect along with technology, what equipment was laid increases, and certainly will need the upper strata Control Node to come to provide some basic schedule informations, optimization system overall performance for equipment.Therefore, scheme 2 can be used to schedule information from the upper strata Control Node to promote jamproof performance.Be example with the upper strata Control Node that is placed on user side below, brief description obtains the feasibility of schedule information.If in certain geographic range (for example in same one deck of residential building, office building, perhaps in building) a plurality of present devices are arranged, a upper strata Control Node can be placed in order to promote coverage effect and user experience by operator, for equipment provides some schedule informations.Equipment detects the situation of own suffered interference by frequency spectrum perception when initialization, and it is reported to the upper strata Control Node; The upper strata Control Node can with original device network information relatively, determine that this equipment is close with which equipment, thereby the equipment that the geographical position is close is divided in same logical subnetwork, the equipment that belongs to the Different Logic subnet can not receive schedule information each other.Comprise in the schedule information: the up-downgoing resource allocation information that belongs to equipment in the same logical subnetwork, be that the upper strata Control Node requires equipment all to report up-downgoing when each resource allocation cycle begins to take resource situation respectively, the upper strata Control Node is distributed to the equipment that belongs to same logical subnetwork after information is gathered again.After equipment obtained to belong to the resource use information of other equipment of same logical subnetwork, the available resources of macrocellular list of available resources used the part of the up resources overlapping of information directly to list in the actual list of available resources with same logical subnetwork resource.During the real-time available resources of equipment utilization frequency spectrum perception technology for detection, only need to do detection on the resource that the occupied resource that the available resources and the same logical subnetwork resource of macrocellular list of available resources are used information overlaps, testing result is that available resource is also added in the actual list of available resources.Compare with the actual list of available resources of having preserved after each sense cycle, upgrade tabulation when change is arranged.
Above-mentioned interference avoidance/coordination method is applicable to TDD system and FDD system: when being used for the TDD system, need the exact time synchronization of assurance equipment and mobile core network, detect from the uplink and downlink timeslot differentiating uplink and downlink; When being used for the FDD system, up-downgoing detects uses different antennas, can detect by differentiating uplink and downlink from detecting frequency range.
The new indoor overlay device that the present invention proposes has been realized the indoor covering of high-speed radiocommunication, has proposed two kinds of interference avoidance/coordinate schemes, has all solved the interference problem under the complex scene at the situation of different system expense.Its beneficial effect is as follows:
(1) after the device power, can finish installation, networking and initialization procedure automatically;
(2) under the situation that does not change legacy network, equipment can operate as normal, and overhead is little;
(3) equipment has adopted adaptive interference avoidance/coordinate scheme, has comprehensively solved the interference problem of Home eNodeB, has realized channeling on the basis of keeping system stability and maintenance user experience, has increased total system capacity;
(4) interference avoidance/coordination method of Ti Chuing is applicable to multiple mobile communications network, and FDD system and TDD system all can adopt.
Description of drawings
Fig. 1 is the module diagram that the present invention proposes equipment.
Fig. 2 is the particular flow sheet of interference avoidance/coordination method of the present invention.
Fig. 3 is the schematic network structure of the interference avoidance coordination approach of interference avoidance/coordination method scheme 1 of the present invention when promptly not having the resource allocation information of contiguous equipment of the same race.
Fig. 4 is the schematic network structure of the interference avoidance coordination approach of interference avoidance/coordination method scheme 2 of the present invention when the resource allocation information of contiguous equipment of the same race is promptly arranged.
Embodiment
Below by drawings and Examples, technical scheme of the present invention is described in further detail.Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof simultaneously is used to explain the present invention, do not constitute improper qualification of the present invention.
Embodiment 1:
Present embodiment illustrates the general installation method of present device in conjunction with Fig. 1, and this method comprises:
The user places present device in movable compact district in the room, and placement location is optional, also can change as required, but the coverage effect might place in some position the time can be relatively poor because of the influence of wall decline.The user can be positioned over equipment diverse location within doors, judges that according to the show value of interference strength display module which position interference is less, can obtain better coverage effect, and equipment is placed these positions.The equipment utilization connecting line is connected with IP network, and start powers on.The recognition of devices unit that equipment carries sends the networking identification information of equipment to core net by IP network, core net judges that the qualified back of this sign allows it to insert core net, its IP address label is shown legal address, provide service by corresponding mobile operator for it, and synchronizing information fed back to this equipment, be stored in the basic configuration information memory cell.Equipment begins initial work, determines background noise, transmitting power, subcarrier allocation by the wireless environment around detecting, and is prepared as the user service is provided.After each outage, re-power, equipment all can repeat above-mentioned work, to reach its adaptivity.
Embodiment 2:
Present embodiment is an example with the TDD-LTE system, in conjunction with Fig. 2 the flow chart of interference avoidance of the present invention/coordination technique scheme is described, this method comprises:
Step 201: upgrade Macro UL/DL RA with period T 1;
In the basic configuration information memory cell, obtain exact time synchronization information, and upgrade Macro UL/DL RA, whenever surpass T1 and all do corresponding renewal and subsequent step during the cycle with period T 1;
Whether step 202: it is occupied to detect Macro UL/DL RA idle sub-carrier;
Equipment utilization frequency spectrum perception technology detects on Macro UL/DL RA idle sub-carrier, judges whether it is occupied;
Step 203: do not have contiguous equipment of the same race;
Because the idle sub-carrier of meeting priority allocation Macro UL/DL RA during the devices allocation subcarrier, therefore explanation does not have contiguous equipment of the same race when it is unoccupied;
Step 204: which subcarrier of macrocellular user uplink time-frequency spectrum perception is occupied;
When macrocellular user uplink time slot, it is occupied which subcarrier is equipment utilization frequency spectrum perception technology can detect when up;
Step 205: determine relatively that with Macro UL RA near the MU the equipment numbers;
The detected up occupied subcarrier of step 204 can be determined the MU numbering that corresponding subcarrier is corresponding with Macro UL RA;
Step 206: the downlink sub-carrier of in Macro DL RA, searching corresponding MU numbering;
Can find the downlink sub-carrier that corresponding MU takies at Macro DL RA according to the MU numbering;
Step 207: with up-downgoing subcarrier deletion from the available subcarrier tabulation of corresponding MU numbering;
With the downlink sub-carrier that uplink sub-carrier is numbered and step 206 the obtains numbering that step 204 obtains, deletion in the available subcarrier tabulation of slave unit;
Step 208: in the available subcarrier tabulation is the DU allocation of subcarriers;
Equipment is the DU allocation of subcarriers in the available subcarrier tabulation;
Step 209: contiguous equipment of the same race is arranged;
Because the idle sub-carrier of meeting priority allocation Macro UL/DL RA during the devices allocation subcarrier, therefore explanation has contiguous equipment of the same race when it is occupied;
Step 210: equipment carries out quiet period with period T 2 and detects;
Equipment enters quiet period jointly with period T 2, and detects during quiet period;
Step 211: carry out step 204 to 207 acquisition macrocellular available subcarrier tabulations;
Carry out the flow process of step 204 to step 207, the available subcarrier tabulation that obtain this moment only is the available subcarrier tabulation when only having macrocellular, also needs further to detect the available subcarrier that obtains to consider when equipment contiguous of the same race disturbs;
Step 212: equipment recovers operate as normal;
After quiet period finished, equipment promptly recovered operate as normal;
Step 213: whether nearby device subcarrier allocation information is arranged;
Whether equipment is by obtaining to carry out subsequent step from the nearby device subcarrier allocation information of upper strata Control Node;
Step 214: whether available subcarrier in the tabulation of macrocellular available subcarriers is occupied obtains actual available subcarrier tabulation thereby detect with period T 3;
When not having nearby device subcarrier allocation information, carry out step 214 to step 215;
Step 215: in actual available subcarrier tabulation is the DU allocation of subcarriers by original Resource Allocation Formula as far as possible;
Equipment is equipment user (DU) allocation of subcarriers as far as possible by original Resource Allocation Formula in actual available subcarrier tabulation;
Step 216: the tabulation of macrocellular available subcarrier and the unassigned sub-carriers lap of nearby device subcarrier allocation information are directly listed in the actual available subcarrier tabulation;
When nearby device subcarrier allocation information is arranged, carry out step 216 to step 219, this lap is certain available subcarrier, can directly list in the actual available subcarrier tabulation of equipment;
Step 217: the allocation of subcarriers that detects tabulation of macrocellular available subcarrier and nearby device subcarrier allocation information with period T 3;
Because further detecting, nearby device subcarrier allocation informational needs can determine whether that just nearby device can produce interference to this equipment, so will further detect judgement;
Step 218: the unappropriated subcarrier of testing result is also listed in the actual available subcarrier tabulation;
The detected unappropriated subcarrier of step 217 is also listed in the actual available subcarrier tabulation of equipment;
Step 219: in actual available subcarrier tabulation is the DU allocation of subcarriers by original Resource Allocation Formula as far as possible;
Equipment is equipment user (DU) allocation of subcarriers as far as possible by original Resource Allocation Formula in actual available subcarrier tabulation.
Claims (8)
1. novel cordless communication network indoor coverage equipment, it is characterized in that, this equipment comprises access unit, fire compartment wall, recognition of devices unit, basic configuration information memory cell, user operation unit, interference avoidance/Coordination Treatment unit, interference strength indicating member, intermediate frequency/baseband, Radio Frequency Subsystem, antenna feeder subsystem composition, and each module major function is as follows:
Access unit (102) is realized and being connected of mobile communication core net by the broadband connection circuit, is used for control information transmission and user data information;
Fire compartment wall (103) is used to protect illegal invasion, avoids the distorting and virus attack of facility information, and during this kind equipment disposition gateway, this module also can be built in the gateway;
Recognition of devices unit (104) is used to judge whether to allow equipment access mobile core net;
Basic configuration information memory cell (105), be used to store the available resource information that the service-user information and 107 obtained by 102 basic control informations that obtain, 104 device identifying informations that obtain, 106 is obtained, for the processing of wireless signal provides control information;
User operation unit (106) is used to the information and the instruction input of the equipment of realizing, information output and alarm, facility switching control;
Interference avoidance/Coordination Treatment unit (107) will be handled accordingly from 108 or 109 signals that obtain, and be used to equipment that available resource information is provided, as the essential information of resource allocation;
Intermediate frequency/baseband (108) is used to finish the physical layer process process of digital-to-analogue conversion, descending transmission, up reception and the closed-loop process process of physical layer;
Radio Frequency Subsystem (109), by transceiver, duplex module, power amplifier module, small-signal close/shunt module forms;
Interference strength indicating member (110) is used to measure and the total available resources of display device current location and the ratio of suffered interference, and the user can adjust the position of equipment according to the show state of this module;
Antenna feeder subsystem (111) is made up of antenna, feeder line, can select single antenna or many antennas for use;
The annexation of each module:
Access unit (102) connects fire compartment wall (103) successively, basic configuration information memory cell (105), interference avoidance/Coordination Treatment unit (107), intermediate frequency/Base-Band Processing subelement (108), Radio Frequency Subsystem (109), antenna feeder subsystem (111);
IP network (101) connects access unit (102);
Recognition of devices unit (104) connects fire compartment wall (103) and basic configuration information memory cell (105); Basic configuration information memory cell (105) connects user operation unit (106), intermediate frequency/baseband (108);
Interference avoidance/Coordination Treatment unit (107) connect Radio Frequency Subsystem (109), interference strength indicating member (110);
2. wireless communication indoor coverage equipment interference avoidance/coordination method is characterized in that:
When not having the resource allocation information of contiguous equipment of the same race, wireless communication indoor coverage equipment access mobile communication core net is obtained synchronizing information;
By the wire transmission of IP network or the wireless signal of reception and demodulation macrocellular, obtain the resource allocation information of macrocellular;
Utilize frequency spectrum perception technology for detection unallocated macrocellular user's of giving in macrocellular up-downgoing resource allocation information resource,, near the no equipment of the same race of this equipment is described then if it is unoccupied to detect the macrocellular idling-resource; Otherwise illustrating near this equipment has equipment of the same race;
During no equipment of the same race, when transmitting, the macrocellular user uplink utilize the frequency spectrum perception technology to carry out the periodicity detection, near this equipment to judge the resource of contiguous macrocellular CU; On this basis, the macrocellular ascending resource assignment information that contrast is obtained is the macrocellular Customs Assigned Number of proximity of devices as can be known, can determine the descending resource that takies of contiguous macrocellular user with the contrast of macrocellular downlink resource assignment information again; Equipment can know the macrocellular user's who disturbs each other with equipment up-downgoing resource operating position, is the resource that other macrocellulars user distributes thereby avoid using these resources and use macrocellular;
When equipment of the same race is arranged near this equipment, all present devices of access network and user thereof mourn in silence in the section at one time, promptly the said equipment suspends the transmitting-receiving of all signals simultaneously in one specific period, during quiet period, when the macrocellular user uplink transmits, utilize the frequency spectrum perception technology to carry out periodicity and detect the judgement occupied resource, the macrocellular ascending resource assignment information that contrast is obtained is the macrocellular Customs Assigned Number of proximity of devices as can be known, can determine the descending resource that takies of contiguous macrocellular user with the contrast of macrocellular downlink resource assignment information again, equipment saves as the macrocellular list of available resources with macrocellular for the resource that other macrocellulars user distributes.
After quiet period finishes, equipment recovers operate as normal, according to the actual list of available resources after upgrading is present device and user's allocated sub-channels thereof, the part consistent with the last cycle in the actual list of available resources is present device and user resource allocation thereof by the Resource Allocation Formula of last one-period; When actual available resources are compared with the last cycle and reduced, be not all corresponding present device and the user reduces the resource that the one-period of lasting is its distribution according to type of service; When user's request increases, according to the queuing criterion, preferentially satisfy original user's request, newly-increased user's request can not obtain enough resources;
In the time of the equipment operate as normal, on the available resources of macrocellular list of available resources, utilize the frequency spectrum perception technology further to detect available resources, and it is saved as actual list of available resources; The actual list of available resources of preserving with last one-period after each sense cycle is relatively upgraded tabulation when change is arranged.
3. wireless communication indoor coverage equipment interference avoidance/coordination method is characterized in that:
When the resource allocation information of contiguous equipment of the same race was arranged, wireless communication indoor coverage equipment access mobile communication core net was obtained synchronizing information;
By the wire transmission of IP network or the wireless signal of reception and demodulation macrocellular, obtain the resource allocation information of macrocellular;
Utilize frequency spectrum perception technology for detection unallocated macrocellular user's of giving in macrocellular up-downgoing resource allocation information resource,, near the no equipment of the same race of this equipment is described then if it is unoccupied to detect the macrocellular idling-resource; Otherwise illustrating near this equipment has equipment of the same race;
During no equipment of the same race, when transmitting, the macrocellular user uplink utilize the frequency spectrum perception technology to carry out the periodicity detection, near this equipment to judge the resource of contiguous macrocellular CU; On this basis, the macrocellular ascending resource assignment information that contrast is obtained is the macrocellular Customs Assigned Number of proximity of devices as can be known, can determine the descending resource that takies of contiguous macrocellular user with the contrast of macrocellular downlink resource assignment information again; Equipment can know the macrocellular user's who disturbs each other with equipment up-downgoing resource operating position, is the resource that other macrocellulars user distributes thereby avoid using these resources and use macrocellular;
When equipment of the same race is arranged near this equipment, all present devices of access network and user thereof mourn in silence in the section at one time, promptly the said equipment suspends the transmitting-receiving of all signals simultaneously in one specific period, during quiet period, when the macrocellular user uplink transmits, utilize the frequency spectrum perception technology to carry out periodicity and detect the judgement occupied resource, the macrocellular ascending resource assignment information that contrast is obtained is the macrocellular Customs Assigned Number of proximity of devices as can be known, can determine the descending resource that takies of contiguous macrocellular user with the contrast of macrocellular downlink resource assignment information again, equipment saves as the macrocellular list of available resources with macrocellular for the resource that other macrocellulars user distributes.
After quiet period finishes, equipment recovers operate as normal, according to the actual list of available resources after upgrading is present device and user's allocated sub-channels thereof, the part consistent with the last cycle in the actual list of available resources is present device and user resource allocation thereof by the Resource Allocation Formula of last one-period; When actual available resources are compared with the last cycle and reduced, be not all corresponding present device and the user reduces the resource that the one-period of lasting is its distribution according to type of service; When user's request increases, according to the queuing criterion, preferentially satisfy original user's request, newly-increased user's request can not obtain enough resources;
Equipment obtains the resource of other equipment of same logical subnetwork and uses information from the upper strata Control Node; The part that the up resources that equipment uses information with the available resources and the same logical subnetwork resource of macrocellular list of available resources overlaps is directly listed in the actual list of available resources;
During the real-time available resources of equipment utilization frequency spectrum perception technology for detection, only need to do detection on the resource that the occupied resource that the available resources and the same logical subnetwork resource of macrocellular list of available resources are used information overlaps, testing result is that available resource is also added in the actual list of available resources; The actual list of available resources of preserving with last one-period after each sense cycle is relatively upgraded tabulation when change is arranged.
4. according to claim 2 or 3 described wireless communication indoor coverage equipment interference avoidance/coordination methods, it is characterized in that, the resource allocation information of macrocellular comprises the resource allocation information of macrocellular up-downgoing, specifically comprises macrocellular user's numbering and the different macrocellular user operating position in the up-downgoing resource;
5. according to claim 2 or 3 described wireless communication indoor coverage equipment interference avoidance/coordination methods, it is characterized in that, be applicable to TDD system and FDD system.
6. wireless communication indoor coverage equipment interference avoidance/coordination method according to claim 3 is characterized in that: the upper strata Control Node is positioned at the core net place of user side or carrier network;
7. wireless communication indoor coverage equipment interference avoidance/coordination method according to claim 3 is characterized in that: equipment detects the situation of own suffered interference by frequency spectrum perception when initialization, and it is reported to the upper strata Control Node; Upper strata Control Node and original device network information are relatively determined close equipment, and the equipment that the geographical position is close is divided in same logical subnetwork, and the equipment that belongs to the Different Logic subnet can not receive schedule information each other;
8. wireless communication indoor coverage equipment interference avoidance/coordination method according to claim 3, it is characterized in that: the upper strata Control Node requires equipment all to report up-downgoing when each resource allocation cycle begins and takies resource situation respectively, and the upper strata Control Node is distributed to the equipment that belongs to same logical subnetwork after information is gathered again.
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