CN103702432A - Geographic location database-based uplink enhancement method - Google Patents
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- CN103702432A CN103702432A CN201310652844.XA CN201310652844A CN103702432A CN 103702432 A CN103702432 A CN 103702432A CN 201310652844 A CN201310652844 A CN 201310652844A CN 103702432 A CN103702432 A CN 103702432A
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Abstract
The invention discloses a geographic location database-based uplink enhancement method. The method comprises the following steps: a master system transmits a request of recovering the available carrier frequency and protective region information to a geographic location database; the geographic location database transmits a release command of the available carrier frequency and the protective region information to an affected base station; the base station estimates the disturbed condition of the master system caused by the served users, and divides the users into different regions according to the disturbed condition; the base station distributes scheduling information of uplink and downlink carrier frequencies to the users in different regions, and informs the geographic location database of updating the usage information of the available carrier frequency. By the adoption of the geographic location database-based uplink enhancement method, the available frequency spectrum utilization rate of secondary systems can be effectively improved, and the throughput capacity of the uplink is increased, so that the network performance and the communication service quality of an LTE (long term evolution) system are guaranteed.
Description
Technical field
The present invention relates to a kind of up link Enhancement Method, relate in particular to a kind of up link Enhancement Method based on geographic position data storehouse, belong to wireless communication technology field.
Background technology
Cognitive radio claims again cognitive radio, and its core concept is the intelligent learning ability by carrier frequency perception and system, realizes dynamic carrier frequency distribution and carrier frequency and shares, and has the notable features such as flexible, intelligent, reconfigurable.Cognitive radio passes through sensing external environment, and use artificial intelligence technology from environment learning, on purpose change in real time some operating parameter (such as through-put power, carrier frequency frequency and modulation technique etc.), make its internal state adapt to the statistics variations of the wireless signal receiving, thereby realize the high reliable communication in any time, any place and the limited radio carrier frequency resource of heterogeneous network environment is utilized efficiently.About illustrating of cognitive radio, can consult QualCom company and Nokia Telecommunications and combine " RSPG CONSULTATION ON COGNITIVE TECHNOLOGIES " literary composition of delivering.
In wireless communication system, the shortage of radio carrier frequency resource causes countries in the world to be all difficult to find continuous large bandwidth again.In order to realize the large bandwidth demand of LTE-A system, in LTE-A evolution process, introduced carrier frequency polymerization technique.Carrier frequency polymerization technique is used a plurality of continuous or discrete carrier frequency polymerizations, has solved technically the demand of LTE-A system to bandwidth, has also improved the utilance of scattered carrier frequency in radio band simultaneously.But LTE-A system is not the simple technique that LTE system is undertaken by multi-carrier frequency to be expanded.When LTE-A travelling carriage is used a plurality of carrier frequency unit to carry out data transmit-receive, in order to meet the backwards compatibility of system, according to the relevant configuration of LTE-A system, LTE travelling carriage can be received and sent messages on some carrier frequency unit therein.
Along with the development of the cognitive TD-LTE network based on carrier frequency polymerization technique, operator need to increase average upstream bandwidth, to adapt to ever-increasing user's request.For example, QualCom company has been introduced by HSPA+ (High-Speed Packet Access+, enhanced high-speed grouping access) technology in " HSPA+for Enhanced Mobile Broadband; Qualcomm Incorporated " literary composition to be increased link bandwidth and introduces.The equipment and the terminal that in network, configure now are all supported HSDPA(High Speed Downlink Packet Access, high-speed downlink packet access) can improve greatly downlink rate.But HSUPA(High Speed Uplink Packet Access, high speed uplink packet access) terminal maturity and popularization degree are lower, cause uplink service speed not high, can not support well symmetric data communication service at a high speed, as multimedia conferencing, video conference and the networking telephone etc.Therefore the uplink bandwidth that, how to increase cognitive TD-LTE network is the direction of cognitive radio area research.
Cognitive TD-LTE Radio Network System comprises main system and subsystem, and main system refers to through frequency management department and authorizes, the conventional wireless electric system of a certain carrier frequency of legal use.Subsystem refers to that use has been issued to carrier frequency or the temporary obsolete frequency spectrum resource of other main systems of main system.Subsystem must not cause interference to main system to the use of carrier frequency, therefore requires the situation of its quickly and reliably perception main system use authority carrier frequency.
In present stage, there are two kinds of deficiencies in cognitive TD-LTE wireless network: when the carrier frequency of its mandate is used in main system request on the one hand, do not support the user of the carrier frequency polymerization mandate frequency of this carrier frequency force handoff to himself of must stopping using in subsystem.Macro base station switches immediately and may cause user's service disruption and service quality greatly to reduce, and these affected users are again in handoff procedure, can bring a large amount of signaling consumption.On the other hand when the overlap ratio of the coverage of macro base station and the protected field of main system hour; macro base station use omnidirectional antenna due to subsystem; although the transmission of some grand user's down link may be interrupted, its up link is still can continue to use.The most secondary user's of macro base station coverage is to continue to use the carrier frequency of main system, need not be completely inactive.When macro base station is stopped using this carrier frequency, cause the throughput of up link to decline, cause secondary user's telecommunication service quality to decline.When therefore the carrier frequency of its mandate is used in request for main system, not reducing under the prerequisite of TD-LTE system service quality, making subsystem make full use of the carrier frequency of main system, is an effective way that increases the uplink bandwidth of cognition network.
Summary of the invention
For the deficiencies in the prior art, technical problem to be solved by this invention is to provide a kind of up link Enhancement Method based on geographic position data storehouse.The method can make LTE system make full use of carrier frequency resource, increases uplink throughput.
For realizing above-mentioned goal of the invention, the present invention adopts following technical proposals:
A up link Enhancement Method based on geographic position data storehouse, comprises the steps:
Main system sends request and the protection zone information of regaining available carrier frequencies to geographic position data storehouse;
Described geographic position data storehouse sends release command and the described protection zone information of described available carrier frequencies to affected base station;
The disturbed condition of the user that the estimation of described base station is served to main system, and according to described disturbed condition, described user is divided into zones of different;
Described base station is the schedule information of the described user assignment uplink and downlink link carrier frequency of zones of different;
Described base station notifies described geographic position data storehouse to upgrade the use information of described available carrier frequencies.
Wherein more preferably, described protection zone information comprises that main system reference signal transmission power, cell id and main system allow the interference value of subsystem.
Wherein more preferably, described available carrier frequencies provides for subsystem for described geographic position data storehouse cognitive carrier frequency or the temporary obsolete carrier frequency of other main systems.
Wherein more preferably, described geographic position data storehouse comprises geo-location database and local data base;
Described geo-location database comprises channel number, equivalent isotropically radiated power and the secondary network information of longitude and latitude coordinate, hyperfrequency;
Described local data base comprises the cognition network ID of local Polar mesosphere summer echoes information, cognition network longitude and latitude coordinate, registration and current service band, coverage, the transmitting power of cognition network, allows and disturb and flow load.
Wherein more preferably, the process of zoning, described base station further comprises the steps:
According to the information of available carrier frequencies described in described geographic position data storehouse, determine new transmitting through-put power, and the user in coverage after adjusting is labeled as to first area;
User outside described first area sends to the path loss of main system and measures instruction, and described user measures and whether determine report measurement information;
To report the user of described metrical information to be labeled as second area; Otherwise be labeled as the 3rd region.
Wherein more preferably, the information of described available carrier frequencies comprises carrier/interface ratio, interference rank and the described protection zone information of permission.
Wherein more preferably, described user measures and determines that whether the process of report measurement information further comprises the steps:
Receive the reference signal of described main system transmission, measure the received power of user's reference signal;
According to described received power, main system reference signal transmission power, estimate the downlink path-loss of described main system;
According to the uplink transmission power of described downlink path-loss and configuration, estimation main system received signal power;
If described main system received signal power is less than or equal to the interference value that described main system is allowed subsystem, to described base station report measurement information; Otherwise do not report.
Wherein more preferably, the formula of estimating the downlink path-loss of described main system is:
PL
i＝P
T-RS-RSRP
higerLayerfiltered
Wherein, PL
ithe downlink path-loss that represents described main system; P
t-RSrepresent described main system reference signal transmission power; RSRP
higerLayerfilteredthe received power that represents described user's reference signal.
Wherein more preferably, the formula of estimating described main system received signal power is
I
UEi-Pr_eNB＝P
T-UEi-PL
i
Wherein, I
uEi-Pr_eNBrepresent main system received signal power, P
t-UEirepresent described uplink transmission power.
Wherein more preferably, described schedule information comprises:
The up link of described first area, down link use authority carrier frequency and described available carrier frequencies;
The up link use authority carrier frequency of described second area and described available carrier frequencies, down link use authority carrier frequency;
The up link in described the 3rd region and down link use authority carrier frequency.
Up link Enhancement Method based on geographic position data storehouse provided by the present invention, when carrier frequency is used in main system request, can make more user continue as far as possible to use this carrier frequency, improve LTE network carrier frequency utilance, guarantee the telecommunication service quality of whole system.
Accompanying drawing explanation
Fig. 1 is the application scenarios schematic diagram that in the present invention, main system and subsystem coexist;
Fig. 2 is the schematic flow sheet of up link Enhancement Method provided by the present invention;
Fig. 3 is the mutual signalling diagram of up link Enhancement Method provided by the present invention;
Fig. 4 is the schematic diagram of macro base station zoning scope in the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
The present invention is applicable to the network that main system and subsystem coexist.Wherein, cognitive LTE network is connected with main system by geographic position data storehouse as subsystem.As shown in Figure 1, current LTE system comprises two base stations: macro base station and femto base station.There is two available carrier frequency f0 and carrier frequency f1 in this system.Carrier frequency f0 is for authorizing carrier frequency, and carrier frequency f1 is cognitive carrier frequency or the temporary obsolete available carrier frequencies of other main systems being provided by geographic position data storehouse according to the geographical location information of macro base station.In order to improve throughput of system and to guarantee service quality, the macro base station of LTE system takies carrier frequency f0 and forms main plot (Primary cell, is abbreviated as Pcell); The carrier frequency f1 that geographic position data storehouse provides is secondary community (Secondary cell, is abbreviated as Scell), the carrier frequency f1 that the picocell that femto base station forms in addition is also used geographic position data storehouse to provide as focus.In macro base station coverage, there is the user of a large amount of support spectrum aggregatings and do not support the user of spectrum aggregating.When the main system base station requests of another network is used carrier frequency f1, the meeting of communicating by letter of macro base station and femto base station is taken and is affected by other main systems because of carrier frequency f1.
Referring to Fig. 2, the up link Enhancement Method based on geographic position data storehouse provided by the invention, comprises the steps: that main system sends request and the protection zone information of regaining available carrier frequencies to geographic position data storehouse; Geographic position data storehouse sends release command and the protection zone information of available carrier frequencies to affected base station; The disturbed condition of the user that base station estimation is served to main system, and according to disturbed condition, user is divided into zones of different; Base station is the schedule information of the user assignment uplink and downlink link carrier frequency of zones of different; The use information of available carrier frequencies is upgraded in notice geographic position data storehouse, base station.The present invention can be in the situation that not affecting main system, and subsystem effectively utilizes the carrier frequency resource of main system, improves throughput and the service quality of system.Because the base station of main system impact comprises macro base station and femto base station, below in conjunction with 2 and Fig. 3 take macro base station and each step of the present invention described in detail as specific embodiment.
When the user of main system asks to use carrier frequency f1, the base station of main system or other mandates operator send to geographic position data storehouse and regain carrier frequency f1 request, require the macro base station of the use carrier frequency f1 in its protection zone to discharge this carrier frequency resource.When main system sends the request of withdrawal carrier frequency, need send to geographic position data storehouse its predefined protection zone information.The protection zone information that main system sends, the mandate frequency using carrier frequency f1 as main system need be stored in geographic position data storehouse.When subsystem is when being used this carrier frequency, geographic position data storehouse, according to the use information of carrier frequency f1, guarantees that main system is interference-free.Wherein the information of protection zone comprises main system reference signal transmission power P
t-RS, community ID and main system allow the interference value I of subsystem
0.In protection zone, because the interference of subsystem is harmful to main system, does not allow and use carrier frequency f1.Outside protection zone, some is to allow for the interference of subsystem, so subsystem is according to protection zone information, determines whether to discharge this carrier frequency resource.
Step 2, geographic position data storehouse sends the protection zone information that discharges carrier frequency order and main system to affected macro base station.
In the present invention, geographic position data storehouse comprises geo-location database and local data base.Common geographical location database is deployed in a large geographic area, and canned data comprises: the channel number of longitude and latitude coordinate, hyperfrequency, equivalent isotropically radiated power and secondary network information.Wherein, after whole regional network is formatted, longitude and latitude coordinate represent grid element center; Equivalent isotropically radiated power depends on position and the number of channel of subsystem.Subsystem information comprise system numbering, geographical position, with and local data base in id information.And local data base is deployed in the geographic area that scale is less conventionally, for more detailed system information is provided in decision process.After the registration of cognition network grid, need to report local carrier frequency utilance information to local data base.Local data library storage but be not limited to following information wherein: about the subsystem ID of local Polar mesosphere summer echoes information, cognition network longitude and latitude coordinate, registration and current service band, coverage, the transmitting power of cognition network, allow interference, flow load etc.
Geographic position data storehouse provides available cognitive carrier frequency or the temporary obsolete available carrier frequencies of other main systems for subsystem.When certain main system is regained carrier frequency f1, use the throughput of the subsystem of carrier frequency f1 to be therefore affected.For fear of subsystem, the communication of main system is caused to interference, geographic position data storehouse is used after carrier frequency f1 request in the operator of receiving main system or mandate, and the protection zone information sending according to main system, searches main system position and coverage etc.; After the information such as the position of main system are determined, geographic position data storehouse determines which macro base station is main system have use carrier frequency f1 around, and the interference that causes that can be to main system, and sends and discharge carrier frequency f1 order to these affected macro base stations; Main system protection zone information is sent to macro base station by certain information format simultaneously.
Step 3, the grand user that macro base station estimation is served is for the disturbed condition of main system, and according to described disturbed condition, described grand user is divided into zones of different.
Macro base station receives after the carrier frequency release command of geographic position data storehouse, does not directly discharge the carrier frequency f1 of main system; But the protection zone information of the main system of the grand user's who serves according to it positional information, geographic position data library storage and grand user measure the information on path loss of main system etc., estimate the disturbed condition of grand user to main system; According to estimation result, determine which grand user can continue to use the carrier frequency f1 of main system, which grand user must discharge.In the present invention, according to the disturbed condition to main system, grand user is divided into three regions: main system is not had to noisy region, and the uplink downlink in this region can continue to use carrier frequency f1; Region to the interference of main system in permissible range, the up link in this region can continue to use carrier frequency f1; The region that has harm to disturb to main system, the uplink downlink forbidding carrier frequency f1 in this region.By the region to macro base station, divide, make subsystem utilize as much as possible carrier frequency resource, effectively improved the telecommunication service quality of system.Referring to Fig. 4, introduce the method for macro base station zoning in the present invention below, specifically comprise the following steps:
S301, according to the information of carrier frequency f1 in geographical location database, determines new transmitting through-put power, and the grand user in coverage after adjusting is labeled as to region 1.
Geographic position data storehouse provides the carrier frequency f1 information of subsystem and the available information of main system.Because macro base station is used omnidirectional antenna, the carrier frequency f1 that stops using may cause some grand user's down link to interrupt, and up link is still available.For making down link continuation available, need to adjust the transmitting power of macro base station.In order to guarantee primary user's communication quality, the macro base station of subsystem, before using the carrier frequency resource in geographic position data storehouse, is understood this carrier frequency f1 information by geographic position data storehouse.
The request from the use carrier frequency f1 of subsystem is received in geographic position data storehouse; the information and the necessary condition that guarantees that primary user communicates by letter of this carrier frequency will be provided; for example: the carrier/interface ratio (Signal-Interference-Ratio of permission; be abbreviated as SIR), disturb the information such as rank and protection zone.Position message by these information and secondary network etc., and can determine the maximum transmission power that available clear channel allows.
When f1 is used in main system request, because the protection zone of main system and the coverage of macro base station have overlapping.In order to guarantee the communication of main system, need to use according to main system the information of carrier frequency f1, reduce the transmitting through-put power of macro base station.Macro base station, according to the grand user's of record positional information, is labeled as region 1 by its grand user in coverage after Modulating Power.In region 1 grand user main system is not had noisy, therefore can use authority carrier frequency f0 and available carrier frequencies f1 in up link and down link.
S302, the grand user outside region 1 sends to the path loss of main system and measures instruction, after grand user measures and whether determine report measurement information.
Because does not disturb for main system in region 1, judge that other grand users are for the disturbed condition of main system.Traditional method, when the grand user's of judgement disturbed condition, needs estimation macro base station to the path loss of each main system receiver, but to implement be more difficult to this method comparatively speaking.In the present invention, macro base station sends the measurement instruction for main system path loss by the grand user outside region 1.Each grand user receives the reference signal (master sync signal/auxiliary synchronous signals) of main system base-station transmission, and is estimated to main system base station to the path loss of grand user's down link.Then according to the transmitting power of grand user's up link, estimation main system base station receives the power that grand user transmits.According to the received power of main system and main system, allow the interference value of subsystem, further judge the disturbed condition of subsystem to main system.Introduce in detail the detailed process that grand user measures below.
First, grand user receives the reference signal of main system, and measures the received power of this reference signal.According to the reference signal transmission power of main system base station transmitting, and the received power of the reference signal of measuring, be estimated to grand user side to main system downlink path-loss PL
i, referring to following formula:
PL
i＝P
T-RS-RSRP
higerLayerfiltered （1）
Wherein, P
t-RSrepresent main system reference signal transmission power, RSRP
higerLayerfilteredthe received power of the grand user reference signal that expression is measured, unit is dB.
Secondly, according to grand user's uplink transmission power and estimate main system base station to grand user's downlink path-loss, estimation main system receives the power I of signal
uEi-Pr_eNB.Referring to following formula:
I
UEi-Pr_eNB＝P
T-UEi-PL
i （2）
Wherein, P
t-UEithe uplink transmission power that represents grand user, unit is dB.In the present invention, up link loss is done and is estimated, the path loss of down link is regarded as to the path loss of up link.The through-put power of the up link configuring according to the path loss of up link and grand user, estimation main system received signal power.The interference value of allowing according to this power and main system, can determine the scope that evil is disturbed.
Finally, the size of the interference value that the main system received signal power of judgement estimation and main system are allowed subsystem: if main system received signal power is less than or equal to the interference value that main system is allowed subsystem, grand user reports this metrical information to macro base station; Received signal power is greater than the interference value that main system is allowed subsystem, and grand user is report measurement information not.
S303, macro base station is labeled as region 2 by the grand user of report measurement information, does not have the grand user of report measurement information to be labeled as region 3.
If the received signal power of main system base station is less than or equal to the interference value that main system is allowed subsystem, represent that current grand user can not cause harmful interference to main system when up link is used geographic position data storehouse carrier frequency f1.This grand user need to be to providing the macro base station of service to send an instruction that comprises measured result for it, macro base station receives after this metrical information instruction, and this grand user is labeled as and is positioned at region 2.The carrier frequency f1 that uses geographic position data storehouse to provide is provided this grand user's up link, and down link is not allow to use.And when main system received power is greater than main system and allows the interference value of subsystem, grand user's interference is harmful to for main system.This grand user can not trigger the measurement result instruction reporting to macro base station.Macro base station is divided into region 3 by the grand user of not reporting measurement instruction, and the grand user in this region does not allow use carrier frequency f1.
Step 4, the schedule information of the grand user assignment uplink and downlink link carrier frequency that macro base station is zones of different.Macro base station is notified trizonal grand user the carrier frequency scheduling information of corresponding uplink and downlink link separately, and the command information that sends extra enhanced uplink mechanism is to the grand user that can continue to use carrier frequency f1.Grand user is in the uplink downlink carrier frequency service condition of zones of different, specifically referring to table 1.
| Up link | | |
| Region | ||
| 1 | f0,f1 | f0,f1 |
| Region 2 | f0,f1 | f0 |
| Region 3 | f0 | f0 |
The grand user of table 1 is in the uplink downlink carrier frequency service condition of zones of different
The grand user in region 1 can produce interference not within the scope of protection zone and not, so its up link and down link can use authority carrier frequency f0 and carrier frequency f1.The grand user in region 2 is positioned at outside region 1, not in the protection zone of main system.Because the interference that the grand user in this region produces is allowed, use carrier frequency f0 and carrier frequency f1 that therefore can be limited: up link adopts carrier frequency f0 and carrier frequency f1, down link only adopts authorizes carrier frequency f0.3, region is positioned at protection zone, and the grand user of the subsystem in this region disturbs and is harmful to for main system.Therefore its up link and down link all can only be used carrier frequency f0, can not use carrier frequency f1.By the present invention, can make more grand user continue as much as possible to use carrier frequency f1, the up link that has realized LTE system strengthens, and guarantees the telecommunication service quality of subsystem simultaneously.
Step 5, the use information of carrier frequency is upgraded in macro base station notice geographic position data storehouse.After macro base station is assigned grand user's schedule information, need to notify location server to upgrade the use carrier frequency situation of macro base station coverage current region, help geographic position data library management carrier frequency resource, the interference of effectively having avoided subsystem to cause main system.
In up link Enhancement Method provided by the present invention, when main system request is used after carrier frequency f1, geographic position data storehouse will send a carrier frequency release command to relevant macro base station, and notifies the protection zone information of main system to macro base station.Macro base station is the disturbed condition for main system according to grand user, and its coverage is divided into three regions; And reasonably distribute uplink downlink schedule information for trizonal grand user.The present invention makes macro base station in the situation that primary user not being caused to interference, and the more secondary user's of adaptive scheduling continues to use geographic position data storehouse carrier frequency resource, realizes up link and strengthens, and guarantees the telecommunication service quality of subsystem.
The present invention is applicable to the relatively concentrated city hot zones of personnel and Cellular Networks covers relative close quarters.In these regions, LTE network has a large amount of mobile terminals to exist, and load is large, traffic carrying capacity is large.By the present invention, can effectively reduce energy loss in route handoff or connection reconstruction and unnecessary Signalling exchange, reduce the situation that mobile terminal service is lost, guarantee the service quality of whole LTE system.
Above to the up link Enhancement Method row based on geographic position data storehouse provided by the present invention detailed explanation.For one of ordinary skill in the art, any apparent change of under the prerequisite that does not deviate from connotation of the present invention, it being done, all will form infringement of patent right of the present invention, will bear corresponding legal liabilities.
Claims (10)
1. the up link Enhancement Method based on geographic position data storehouse, is characterized in that comprising the steps:
Main system sends request and the protection zone information of regaining available carrier frequencies to geographic position data storehouse;
Described geographic position data storehouse sends release command and the described protection zone information of described available carrier frequencies to affected base station;
The disturbed condition of the user that the estimation of described base station is served to main system, and according to described disturbed condition, described user is divided into zones of different;
Described base station is the schedule information of the described user assignment uplink and downlink link carrier frequency of zones of different;
Described base station notifies described geographic position data storehouse to upgrade the use information of described available carrier frequencies.
2. up link Enhancement Method as claimed in claim 1, is characterized in that:
Described protection zone information comprises that main system reference signal transmission power, cell id and main system allow the interference value of subsystem.
3. up link Enhancement Method as claimed in claim 1, is characterized in that:
Cognitive carrier frequency or the temporary obsolete carrier frequency of other main systems that described available carrier frequencies provides for subsystem for described geographic position data storehouse.
4. up link Enhancement Method as claimed in claim 1, is characterized in that:
Described geographic position data storehouse comprises geo-location database and local data base;
Described geo-location database comprises channel number, equivalent isotropically radiated power and the secondary network information of longitude and latitude coordinate, hyperfrequency;
Described local data base comprises the cognition network ID of local Polar mesosphere summer echoes information, cognition network longitude and latitude coordinate, registration and current service band, coverage, the transmitting power of cognition network, allows and disturb and flow load.
5. up link Enhancement Method as claimed in claim 1, is characterized in that the process of zoning, described base station further comprises the steps:
According to the information of available carrier frequencies described in described geographic position data storehouse, determine new transmitting through-put power, and the user in coverage after adjusting is labeled as to first area;
User outside described first area sends to the path loss of main system and measures instruction, and described user measures and whether determine report measurement information;
To report the user of described metrical information to be labeled as second area; Otherwise be labeled as the 3rd region.
6. up link Enhancement Method as claimed in claim 5, is characterized in that:
The information of described available carrier frequencies comprises carrier/interface ratio, interference rank and the described protection zone information of permission.
7. up link Enhancement Method as claimed in claim 5, is characterized in that described user measures and determines that whether the process of report measurement information further comprises the steps:
Receive the reference signal of described main system transmission, measure the received power of user's reference signal;
According to described received power, main system reference signal transmission power, estimate the downlink path-loss of described main system;
According to the uplink transmission power of described downlink path-loss and configuration, estimation main system received signal power;
If described main system received signal power is less than or equal to the interference value that described main system is allowed subsystem, to described base station report measurement information; Otherwise do not report.
8. up link Enhancement Method as claimed in claim 7, is characterized in that:
The formula of estimating the downlink path-loss of described main system is:
PL
i＝P
T-RS-RSRP
higerLayerfiltered
Wherein, PL
ithe downlink path-loss that represents described main system; P
t-RSrepresent described main system reference signal transmission power; RSRP
higerLayerfilteredthe received power that represents described user's reference signal.
9. up link Enhancement Method as claimed in claim 7, is characterized in that:
The formula of estimating described main system received signal power is
I
UEi-Pr_eNB＝P
T-UEi-PL
i
Wherein, I
uEi-Pr_eNBrepresent main system received signal power, P
t-UEirepresent described uplink transmission power.
10. up link Enhancement Method as claimed in claim 5, is characterized in that described schedule information comprises:
The up link of described first area, down link use authority carrier frequency and described available carrier frequencies;
The up link use authority carrier frequency of described second area and described available carrier frequencies, down link use authority carrier frequency;
The up link in described the 3rd region and down link use authority carrier frequency.
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| CN109150777A (en) * | 2017-06-16 | 2019-01-04 | 华为技术有限公司 | The transmission method and transmitting device of reference signal |
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| CN110192373A (en) * | 2017-01-13 | 2019-08-30 | 高通股份有限公司 | System and method for selecting or transmitting the frequency domain mode for Phase Tracking reference signal |
| US11522656B2 (en) | 2017-01-13 | 2022-12-06 | Qualcomm Incorporated | Apparatus and method for determining resources for phase tracking reference signal (PT-RS) pilot signals using frequency domain patterns |
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| CN101325461B (en) * | 2008-07-25 | 2011-04-27 | 浙江大学 | Method for establishing and maintaining cognition radio communication link based on non-speed code |
| CN102624465B (en) * | 2011-01-30 | 2016-01-20 | 中兴通讯股份有限公司 | The method and system that a kind of perception of cognitive radio is auxiliary |
| KR20120092475A (en) * | 2011-02-11 | 2012-08-21 | 주식회사 팬택 | Apparatus and method for transmitting control information on in-device coexistence interference |
| CN102098685B (en) * | 2011-03-25 | 2013-06-26 | 西安电子科技大学 | Global system for mobile communication (GSM) network-based spectrum reuse communication system and method |
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2013
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| WO2018019113A1 (en) * | 2016-07-29 | 2018-02-01 | 索尼公司 | Electronic device and method for the electronic device |
| US11039450B2 (en) | 2016-07-29 | 2021-06-15 | Sony Corporation | Electronic device and method for the electronic device |
| US11700630B2 (en) | 2016-07-29 | 2023-07-11 | Sony Group Corporation | Electronic device and method for the electronic device |
| CN110192373A (en) * | 2017-01-13 | 2019-08-30 | 高通股份有限公司 | System and method for selecting or transmitting the frequency domain mode for Phase Tracking reference signal |
| US11522656B2 (en) | 2017-01-13 | 2022-12-06 | Qualcomm Incorporated | Apparatus and method for determining resources for phase tracking reference signal (PT-RS) pilot signals using frequency domain patterns |
| CN109150777A (en) * | 2017-06-16 | 2019-01-04 | 华为技术有限公司 | The transmission method and transmitting device of reference signal |
| CN109150777B (en) * | 2017-06-16 | 2023-11-10 | 华为技术有限公司 | Reference signal transmission method and reference signal transmission device |
| US11855922B2 (en) | 2017-06-16 | 2023-12-26 | Huawei Technologies Co., Ltd. | Reference signal transmission method and transmission apparatus |
| CN109462462A (en) * | 2017-09-06 | 2019-03-12 | 上海朗帛通信技术有限公司 | A kind of user that be used to wirelessly communicate, the method and apparatus in base station |
| CN109462462B (en) * | 2017-09-06 | 2021-07-27 | 上海朗帛通信技术有限公司 | Method and device used in user and base station of wireless communication |
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