Summary of the invention
The invention provides a kind of macro diversity method, system and equipment that utilizes multi-cell joint detection method, in order to separate the problem that must not make full use of the information that method that multi-plot joint detects obtains.
The invention provides a kind of macro diversity method that utilizes associated detecting method, be used for the transmission of uplink blocks of data, comprise the steps:
When receiving the signal data of each sub-district, utilize many yards collection channel estimation methods to obtain the channel estimation results of each neighbor cell, and carry out the detection of spread spectrum coefficient according to the configuration of radio network controller (RNC), thereby the code channel to each neighbor cell carries out the code channel grouping, utilize the channel estimation results of each neighbor cell and the result of code channel grouping, calculate the estimated result that the aggregate channel response obtains; After obtaining the estimated result that array response obtains, obtain each cell code chip level by joint-detection and detect data estimated result;
Detect data according to each cell code chip level and obtain community user transformat fully;
Detect data according to each cell code chip level and obtain the transport block data of each sub-district with each community user transformat;
Radio network controller carries out grand diversity according to the described data of obtaining.
Preferably, described radio network controller carries out comprising the steps: in the grand diversity step according to the described data of obtaining
The described subscriber equipment that joint-detection is obtained detects the data upload radio network controller at the chip-level that is equipped with the sub-district;
Radio network controller detects data according to the described up chip-level of uploading and determines grand diversity subscriber equipment, and sets up the grand diversity link of described subscriber equipment;
Detect the grand diversity link that data are kept the transport block data that the subscriber equipment joint-detection obtains according to RNC configuration and described up chip-level.
The present invention also provides a kind of grand diversity system that utilizes multi-cell joint detection method, is applied to the transmission of uplink blocks of data, comprising:
Chip-level detects data acquisition module, be used for when receiving the signal data of each sub-district, utilize many yards collection channel estimation methods to obtain the channel estimation results of each neighbor cell, and carry out the detection of spread spectrum coefficient according to the configuration of radio network controller (RNC), thereby the code channel to each neighbor cell carries out the code channel grouping, utilize the channel estimation results of each neighbor cell and the result of code channel grouping, calculate the estimated result that the aggregate channel response obtains; After obtaining the estimated result that array response obtains, obtain each cell code chip level by joint-detection and detect data estimated result;
User's transformat acquisition module is used for detecting data according to each cell code chip level and obtains each community user transformat;
The transport block data acquisition module is used for detecting each cell code chip level that data acquisition module obtains according to described chip-level and detects each community user transformat that data and described user's transformat acquisition module obtain and obtain the transport block data of each sub-district;
Grand diversity processing module links to each other with radio network controller, is used for carrying out grand diversity according to the described data of obtaining.
Preferably, comprise subscriber equipment, base station, comprise that also transmission module, described grand diversity processing module comprise link establishment module, link maintenance module, wherein:
Last transmission module links to each other with the base station, and the chip-level of described subscriber equipment in each sub-district that is used for that joint-detection is obtained detects data upload and give the link establishment module;
The link establishment module links to each other with radio network controller, is used for detecting data according to the described up chip-level that described upward transmission module is uploaded and determines grand diversity subscriber equipment, and set up the grand diversity link of described subscriber equipment;
The link maintenance module links to each other with radio network controller, is used for detecting the grand diversity link that data are kept the transport block data that the subscriber equipment joint-detection obtains according to radio network controller configuration and described up chip-level.
The present invention provides a kind of radio network controller that utilizes multi-cell joint detection method again, is applied to the transmission of uplink blocks of data, comprising:
The link establishment module, the up chip-level of subscriber equipment in each sub-district that is used for obtaining according to joint-detection detects data and determines grand diversity subscriber equipment, and sets up the grand diversity link of described subscriber equipment; The described up chip-level of subscriber equipment in each sub-district that obtains according to joint-detection detects data and comprises, when receiving the signal data of each sub-district in the base station, utilize many yards collection channel estimation methods to obtain the channel estimation results of each neighbor cell, and carry out the detection of spread spectrum coefficient according to the configuration of radio network controller, thereby the code channel to each neighbor cell carries out the code channel grouping, utilize the channel estimation results of each neighbor cell and the result of code channel grouping then, calculate the estimated result that the aggregate channel response obtains, after obtaining the estimated result that array response obtains, obtain each cell code chip level by the joint-detection to estimated result and detect data, the chip-level of subscriber equipment in each sub-district that joint-detection is obtained detects data upload to this radio network controller;
The link maintenance module is used for detecting the grand diversity link that data are kept the transport block data that the subscriber equipment joint-detection obtains according to RNC configuration and described up chip-level.
Beneficial effect of the present invention is as follows:
After adjacent sub-district code channel adds joint-detection, because obtaining a part, its correlation offsets, so other user's demodulation performances have improvement, so, when between code channel, having certain correlation, even the joint-detection code channel number surpasses spread spectrum coefficient, adjacent sub-district code channel adds joint-detection and also can be beneficial to, and therefore carries out joint-detection according to the aggregate channel response of each the cell signal data that receives.And obtain each cell code chip level and detect data, each community user transformat; Detect data according to each cell code chip level again and obtain the transport block data of each sub-district with each community user transformat.
Further, after community associated detection, considered the interference of co-frequency neighbor cell on the one hand to the neighbour, on the other hand, can obtain the subscriber signal of adjacent sub-district, thereby carry out grand diversity reception after can sending it to RNC, promptly select and merge according to a plurality of diversity reception signal sources.Thus, the subscriber equipment that again joint-detection is obtained detects the data upload radio network controller at the chip-level of each sub-district; Radio network controller detects data according to the up chip-level of uploading and determines grand diversity subscriber equipment, and sets up the grand diversity link of subscriber equipment; Simultaneously detect the grand diversity link that data are kept the transport block data that the subscriber equipment joint-detection obtains according to RNC configuration and up chip-level.
Therefore, the present invention can be after joint-detection obtains adjacent cell code chip level data and transport block data, and the data of having utilized the community associated detection of described neighbour to obtain are carried out purposes such as diversity reception.Among the present invention, the adjacent community user data that joint-detection is obtained directly send to upper level, carry out despreading processing and merging by upper level, thereby can save the process that develops and manages maintenance between base station and the base station controller at each user's transmission channel respectively, not only reduced the process of management maintenance, also saved in a large number and paid resource because of maintenance.
Embodiment
Below in conjunction with accompanying drawing concrete enforcement of the present invention is described.
Fig. 2 is adjacent cell data associated detecting method implementing procedure schematic diagram, as shown in the figure, when in TD-CDMA system implementation neighbour cell data joint-detection, comprises the steps:
Step 201, carry out joint-detection, obtain each cell code chip level and detect data according to the aggregate channel response of each the cell signal data that receives;
Step 202, detect data by each cell code chip level and obtain each community user transformat;
Step 203, detect data and each community user transformat obtains the transport block data of each sub-district according to each cell code chip level.
Step 204, radio network controller carry out grand diversity according to the data of obtaining.
Wherein: in step 201, joint-detection is carried out in aggregate channel response according to each the cell signal data that receives, obtain each cell code chip level and detect in the data, the common frequency multi-cell slot CDMA system can be implemented in the following manner for the acquisition of aggregate channel response:
When receiving the signal data of each sub-district, can utilize many yards collection channel estimation methods to obtain the channel estimation results of each neighbor cell, and according to RNC (Radio Network Controller, radio network controller) detection of spread spectrum coefficient is carried out in configuration, thereby the code channel to each neighbor cell carries out the code channel grouping, utilize the channel estimation results of each neighbor cell and the result of code channel grouping then, calculate the estimated result b that the aggregate channel response obtains;
After obtaining the estimated result b that array response obtains, can obtain each cell code chip level by joint-detection and detect data estimated result b;
Fig. 3 is that the code channel of 16 joint-detection is the full code channel time domain signal to noise ratio change curve of 16 code channels for spread spectrum coefficient; Fig. 4 is the time domain signal to noise ratio change curve of 17 code channels for the code channel of joint-detection, as shown in the figure, with AWGN (Additive White Gaussian Noise, additive white Gaussian noise) channel, situation of change is as shown in Figure 3 for the full code channel SNR (Signal-to-Noise Ratio signal to noise ratio) of this sub-district ideal synchronisation; And disturb when adding an adjacent sub-district code channel, when promptly having 17 code channels, adjacent sub-district code channel is as noise processed and the demodulation of participating in joint inspection then as shown in Figure 4.Relatively can find by two figure, after adjacent sub-district code channel adds joint-detection, because obtaining a part, its correlation offsets, so other user's demodulation performances have improvement, so, when having certain correlation between code channel, even the joint-detection code channel number surpasses 16, adjacent sub-district code channel adds joint-detection and also can be beneficial to.
In step 202, detecting data by each cell code chip level obtains in each community user transformat, can obtain user's transformat of required demodulate transmitted block message according to the variety of ways such as quality application of each cell code chip level data with the base station, specifically can implement in the following manner to obtain:
1, when the user of each sub-district configuration and transformat change, RNC can be known this information under it, RNC after knowing this information to all adjacent cell base stations of this sub-district, or determine this change message of a part of base station broadcast according to each sub-district P-CCPCH measured value of subscriber equipment, usually can be by to after this cell configuration be adjacent sub-district in implementing, information such as broadcasting adjacent sub-district Radio Link increase, change, deletion on the Iub of sub-district mouth, all base stations can obtain the cell transmission form that oneself is paid close attention to like this.
2, data are detected according to the chip-level that step 201 obtains in the base station, make up by information such as code channel power, channel relevancy, signal to noise ratio one of them or its and to weigh the quality of data, after judging quality and paying close attention to the sub-district code channel preferably, the base station reports the code channel of paying close attention to the sub-district to RNC, RNC takies the user who pays close attention to the sub-district code channel to set up Radio Link, and transformat is handed down to the base station, the base station can get access to the transformat of each community user like this.
In the enforcement, RNC is basic identical to transformat and normal wireless link establishment configuration information that NodeB issues, comprising: professional transmission channel configuration and physical channel configuration.
Wherein the transmission channel configuration comprises:
Configuration comprises with the TFCS physical channel:
The Midamblemidamble size |
Codes and time slots code word and time slot allocation |
The maximum data bit number of the every radio frames of Max.Number of data bits/radioframe |
The code length of TFCI code wordTFCI |
The code length of TPCTPC |
The Puncturing Limit restriction of punching |
In step 203, after the chip-level that obtains each sub-district detects data and obtains adjacent community user transport format information by modes such as base stations in advance, by deciphering the transport block data information that can obtain each sub-district.
Adjacent area interference can be effectively removed, and adjacent cell code chip level data and transport block data can be accessed.
The chip-level that obtains based on above-mentioned joint-detection detects data and transmission block information, the invention provides a kind of macro diversity method that utilizes multi-cell joint detection method, below in conjunction with accompanying drawing the specific embodiment of the present invention is described.
Fig. 5 is the macro diversity method implementing procedure schematic diagram that utilizes multi-cell joint detection method, and this method is used for the transmission of uplink blocks of data, as shown in the figure, can comprise the steps: in the enforcement
Step 501, the chip-level of subscriber equipment in each sub-district that joint-detection is obtained detect the data upload radio network controller;
Step 502, radio network controller detect data according to the up chip-level of uploading and determine grand diversity subscriber equipment, and set up the grand diversity link of subscriber equipment;
Step 503, detect the grand diversity link that data are kept the transport block data that the subscriber equipment joint-detection obtains according to RNC configuration and up chip-level.
In preferred the enforcement, can further include following steps:
RNC sends grand diversity nearby region measurement configuration messages to NodeB triggering NodeB startup joint-detection;
Or RNC sends homogeneous-frequency adjacent-domain P-CCPCH RSCP (Received Signal Code Power, received signal code power) and measures configuration messages to subscriber equipment triggering subscriber equipment startup joint-detection.
In the enforcement, configuration messages comprises the joint-detection operation parameter, and parameter comprises SNR decision threshold that is set to 3~5dB and/or the lag time that is set to 20~100ms.
In the enforcement, radio network controller is determined grand diversity subscriber equipment according to resource beacon information and measured value information that the described up chip-level of uploading detects the grand diversity incident correspondence of data.
The resource beacon information of grand diversity incident correspondence can comprise: adjacent area scrambler number, frequency, time slot, spreading code; Measured value can comprise SNR and the RSCP that chip-level detects data.
In the enforcement, when setting up grand diversity link, set up after can notifying corresponding each local resource method of salary distribution of NodeB and coded system by RNC; Also can initiate request by RNC sets up at the Iub mouth.
The data that detect according to RNC configuration and described up chip-level in step 503 are kept in the grand diversity link of the transport block data that the subscriber equipment joint-detection obtains, and can comprise the steps:
RNC goes out corresponding user's transport format information from the chip-level data search, but just despreading goes out user's transport block data, and the normal transmission blocks of data with user's persistent district merges then.
The continuity that keeps RNC affiliated subdistrict neighboring area signal demodulation sign indicating number.
Keeping the grand diversity link of subscriber equipment is to keep according to SNR, RSCP, block error rate BLER thrin or its combination of up chip-level detection data.
Can further include following steps in preferred the enforcement:
NodeB or UE discharge grand diversity link according to described up chip-level data.
Continuous cyclic redundancy check (CRC) mistake appears in decoded described uplink blocks of data when the adjacent area, and NodeB discharges grand diversity link;
Or up chip-level data are not included into the joint-detection scope continuously when the adjacent area, and NodeB discharges grand diversity link;
Or as the SNR of the up chip-level data in adjacent area during less than the 3rd thresholding, NodeB discharges grand diversity link;
Or described as adjacent area P-CCPCH Primary Common Control Physical Channel RSCP during less than the 4th thresholding, UE discharges grand diversity link.
In preferred the enforcement, can also come the grand diversity link of release to be set by RNC according to RNC.
Surpass second thresholding of setting when local area signal and neighboring area signal level difference; Or, when cell quality during greater than the 5th threshold value; Or when subscriber equipment took resource sum and surpasses every time slot 24 code channels, RNC discharged grand diversity link.
Foundation for grand diversity link can be set up grand diversity quantity of links according to the control of joint-detection code channel number.
The present invention also provides a kind of grand diversity system that utilizes multi-cell joint detection method, describes below in conjunction with the embodiment of accompanying drawing to native system.
Fig. 6 is the grand diversity system structural representation that utilizes multi-cell joint detection method, and as shown in the figure, system applies comprises in the system in the transmission of uplink blocks of data:
Chip-level detects data acquisition module, is used for carrying out joint-detection according to the aggregate channel response of each the cell signal data that receives, and obtains each cell code chip level and detects data;
User's transformat acquisition module is used for detecting data according to each cell code chip level and obtains each community user transformat;
The transport block data acquisition module is used for detecting each cell code chip level that data acquisition module obtains according to described chip-level and detects each community user transformat that data and described user's transformat acquisition module obtain and obtain the transport block data of each sub-district;
Grand diversity processing module links to each other with radio network controller, is used for carrying out grand diversity according to the described data of obtaining.
In preferred the enforcement, can also comprise subscriber equipment, base station, comprise that also transmission module, described grand diversity processing module comprise link establishment module, link maintenance module, wherein:
Last transmission module links to each other with the base station, and the chip-level of subscriber equipment in each sub-district that joint-detection is obtained detects data upload link establishment module;
The link establishment module links to each other with RNC, determines grand diversity subscriber equipment according to the up chip-level detection data that last transmission module is uploaded, and sets up the grand diversity link of subscriber equipment;
The link maintenance module links to each other with RNC, detects the grand diversity link that data are kept the transport block data that the subscriber equipment joint-detection obtains according to RNC configuration and up chip-level.
Can further include in the system:
The trigger module that links to each other with RNC sends grand diversity nearby region measurement configuration messages to NodeB triggering NodeB startup joint-detection; Or, send homogeneous-frequency adjacent-domain P-CCPCH RSCP and measure configuration messages to subscriber equipment triggering subscriber equipment startup joint-detection.
The link establishment module can be set up grand diversity link after by corresponding each local resource method of salary distribution of RNC notice NodeB and coded system; Or, initiate request by RNC and set up grand diversity link at the Iub mouth.
In preferred the enforcement, can also comprise the link maintenance policy module, be used to formulate the optimal demodulation that the same frequency algorithm that makes on the RNC guarantees RNC affiliated subdistrict signal, include the interference in the threshold range in described demodulation scope, and/or keep the successional strategy of keeping of RNC affiliated subdistrict neighboring area signal demodulation sign indicating number with the frequency algorithm; The strategy that the link maintenance module is formulated according to the link maintenance policy module is kept grand diversity link.
In preferred the enforcement, can also comprise being used for the first link release module and the second link release module that grand diversity link discharges, wherein:
The first link release module discharges grand diversity link according to up chip-level data.
Can comprise in the first link release module:
First releasing unit that links to each other with NodeB, continuous cyclic redundancy check (CRC) mistake appears in decoded uplink blocks of data when the adjacent area, or be not included into the joint-detection scope continuously when the up chip-level data in adjacent area, or, discharge the grand diversity link on the NodeB as the SNR of the up chip-level data in adjacent area during less than the 3rd thresholding; Second releasing unit that links to each other with UE as adjacent area P-CCPCH Primary Common Control Physical Channel RSCP during less than the 4th thresholding, discharges the grand diversity link on the UE.
The second link release module that links to each other with RNC is provided with the grand diversity link of release according to RNC.The second link release module surpasses second thresholding of setting when local area signal and neighboring area signal level difference, or when cell quality during greater than the 5th threshold value, or to take resource total during above every time slot 24 code channels when subscriber equipment, discharges grand diversity link.
Can further include link control module in the enforcement, be used for setting up grand diversity quantity of links according to joint-detection code channel number control.If the maximum code channel number ability of the joint-detection of Node B is 24 code channels, then increase the quantity of user's configuration parameter of being preserved, consider that by single time slot 24 code channels and every user 2 code channels 36 users' configuration parameter is preserved in normal need, also can consider to take the circumstances into consideration to increase.In this quantitative range, Node B does not refuse new user's foundation, and trigger event reports, and is set up the user and is issued user's transmission block information by the RNC judgement; If number of users exceeds the storage capacity of Node B, then Node B refuses new user's foundation.
The present invention also provides a kind of radio network controller that utilizes associated detecting method, describes below in conjunction with the embodiment of accompanying drawing to RNC.
Fig. 7 is the radio network controller structural representation that utilizes multi-cell joint detection method, as shown in the figure, utilizes the RNC of associated detecting method to be applied to the transmission of uplink blocks of data, comprising:
The up chip-level of subscriber equipment in each sub-district that the link establishment module is obtained according to joint-detection detects data and determines grand diversity subscriber equipment, and sets up the grand diversity link of subscriber equipment;
The link maintenance module detects the grand diversity link that data are kept the transport block data that the subscriber equipment joint-detection obtains according to RNC configuration and up chip-level.
Can further include in preferred the enforcement:
Trigger module is used to send grand diversity nearby region measurement configuration messages to NodeB triggering NodeB startup joint-detection; Or, send homogeneous-frequency adjacent-domain P-CCPCH RSCP and measure configuration messages to subscriber equipment triggering subscriber equipment startup joint-detection.
The link establishment module can be set up grand diversity link after corresponding each local resource method of salary distribution of notice NodeB and coded system; Or the request of initiation is set up grand diversity link at the Iub mouth.
Can further include the link maintenance policy module in the enforcement, be used to formulate the optimal demodulation that the same frequency algorithm that makes on the RNC guarantees RNC affiliated subdistrict signal, include the interference in the threshold range in described demodulation scope, and/or keep the successional strategy of keeping of RNC affiliated subdistrict neighboring area signal demodulation sign indicating number with the frequency algorithm; The strategy that the link maintenance module is formulated according to the link maintenance policy module is kept grand diversity link.
In the enforcement, RNC may further include:
The second link release module is used for according to RNC the grand diversity link of release being set.When local area signal and neighboring area signal level difference surpass second thresholding of setting, or when cell quality during greater than the 5th threshold value, or when subscriber equipment to take resource total during above every time slot 24 code channels, discharge grand diversity link.
Can also comprise link control module in the enforcement, be used for setting up grand diversity quantity of links according to joint-detection code channel number control.
Describe with the enforcement of example more below, Fig. 8 is for implementing the communication system architecture schematic diagram of macro diversity method, as shown in the figure, comprising UE, NodeB1, NodeB2, RNC, CN (Core Network core net) in the system, in the enforcement is that Serving cell (Servering Cell), the NodeB2 of UE is that adjacent sub-district (Neighbor Cell) describes for example with NodeB1.
Base station in service sector NodeB1 is to receiving local area UE signal, and carries out JD and obtain the chip-level data, carries out CC decoding (Channel deCode) according to known transport block format, and the transport block data that obtains is sent to RNC.
Adjacent cell base station NodeB2 also can receive the UE signal from the NodeB1 Serving cell, carry out obtaining after multi-plot joint detects the chip-level data of UE, and obtain transport block format to the application of RNC side RRM algorithm according to the quality of chip-level data, CC utilizes chip-level data and the transport block format that obtains, and decodes to such an extent that transport block data also is sent to RNC.
RNC just can be used to adjudicate from the same UE transport block data of different base station like this, finishes grand diversity.
Embodiment one
Present embodiment need not the macro diversity method implementing procedure of Uu port communications in order to description.
1, grand diversity link establishment flow process can be implemented in the following manner:
(1), the base station can be measured, be adjudicated by detected neighboring area signal JD;
NodeB can be sent " grand diversity nearby region measurement " configuration by RNC to the triggering of nearby region measurement and start." grand diversity nearby region measurement " is a kind of of public-measurement.Relevant parameter provides by measuring control messages, comprising information such as decision threshold and lag times.
In initial preferred enforcement of SNR decision threshold is 3~5dB, thereby guarantees that the adjacent area demodulation has certain quality to guarantee.Can be in the enforcement according to measuring required satisfied performance requirement and handling load and adjust.
The time that can adopt in preferably implementing lag time is 20~100ms.
(2), the grand diversity Event triggered in adjacent area, base station reports RNC, the information spinner that reports will comprise:
The resource beacon information of grand diversity incident correspondence can comprise: resources such as adjacent area scrambler number, frequency, time slot, spreading code indicate;
Chip-level detects the SNR of data and the measured value information of RSCP.
(3), RNC indicates according to resource and can find out corresponding UE (User Equipment, subscriber equipment).In the enforcement, because a UE distributes 2 spreading codes up at most, and may take a plurality of time slots, report so NodeB may can trigger multiple events to same UE, this moment, RNC need carry out the merging processing of reported event;
(4), RNC is that corresponding UE starts grand diversity pooling function; Depending on the circumstances or the needs of the situation can consider cooperation in the enforcement simultaneously with other RRM (Radio Resource Management, RRM) algorithm.
(5), RNC starts grand diversity link establishment;
Starting grand diversity link establishment can carry out in the following manner:
RNC notice NodeB corresponding adjacent area resource distribution mode and coded system;
Perhaps, RNC initiates request and sets up customized macros diversity passage at the Iub mouth.
(6), NodeB is according to adjacent area resource distribution mode and the coded system received, starts adjacent area user's demodulation sign indicating number.
(7), NodeB will deliver to RNC to the transport block data behind the up demodulating and decoding in adjacent area.
In the present embodiment of grand diversity link establishment, with the triggering person that NodeB merges as grand diversity, RNC adjudicates and dispatches.RNC starts the algorithm of grand diversity can be on NodeB reporting neighboring cell signal based measurement, in conjunction with other RRM algorithms, as Radio Link detect, load control etc. carries out, RNC guarantees that same sub-district unifies the local area and no more than 24 code channels of adjacent area resource sum of time slot allocation simultaneously.
2, grand diversity is kept flow process and can be implemented in the following manner:
(1), estimates to judge the scope of JD according to RNC configuration and channels of neighboring areas; Concrete system of selection can be to consider the configuration of RNC to the adjacent area on the algorithm basis frequently together original, and the concrete configuration principle can be undertaken by following principle in conjunction with the needs in implementing:
The frequency algorithm guarantees the optimal demodulation of local area signal as far as possible together, and stronger interference should be included the demodulation scope with the frequency algorithm as far as possible in;
The adjacent area user who has disposed is carried out with due regard to, keep the continuity of neighboring area signal demodulation sign indicating number to a certain extent, to obtain complete data block;
Interference in the threshold range can be included in the enforcement with the demodulation scope of algorithm frequently, the setting of threshold value can be finished by the setting of threshold value, as can be to emerging interference and configuring adjacent cell subscriber signal setting relative threshold (Th).If the interference that is not configured surpasses the adjacent area code channel first thresholding Th1 of configuration, then will not dispose and disturb code channel to include JD in; If the interference that is not configured surpasses the adjacent area code channel first thresholding Th1 of configuration, be the continuity that guarantees adjacent area user decoding then to the demodulation principle that disposes code channel; In the enforcement, when Th1 was made as 0, then obviously demodulation performance was to guarantee this cell detection the best.
(2), for the measure portion of adjacent area, this part can be implemented in NodeB or RNC, specifically can implement in the following manner:
The NodeB measurement module carries out continuous measurement to the chip-level data of the adjacent area code channel of RNC appointment, can comprise SNR, RSCP, BLER (BLock Error Rate, Block Error Rate), also can carry out other search of signal by force simultaneously;
RNC carries out BLER monitoring (can be used as the reference of switching scheduling algorithm during this information of same) to the up data of grand diversity link of configuration;
(3), RNC realizes that grand diversity merges;
3, grand diversity release flow process can be implemented in the following manner:
During the release of grand diversity was implemented, NodeB and RNC all can be used as the promoter.
(1), NodeB discharges grand diversity implementation process and can carry out in the following manner:
When continuous CRC (Cyclic RedundancyCheck, cyclic redundancy check (CRC)) mistake appears in the decoded transport block data in NodeB adjacent area;
Or, when neighboring area signal is not included into the joint-detection scope continuously;
Or, during the 3rd thresholding Th3 of adjacent area SNR<setting;
Triggered by NodeB, RNC discharges grand diversity.
(2), RNC discharges grand diversity implementation process and can carry out in the following manner:
When finding local area signal and neighboring area signal level difference, RNC surpasses the second thresholding Th2 that sets;
Or, very good when the Serving cell quality, can set the 3rd threshold value to service quality in the enforcement, when surpassing threshold value, service quality just discharges grand diversity link;
Or when Serving cell has new user to rise to exhale or switches when entering, if when taking the resource sum and surpassing every time slot 24 code channels, then RNC triggers grand diversity link and discharges.
In the enforcement, can implement in the following manner for grand diversity link number control:
If the maximum code channel number ability of the joint-detection of Node B is 24 code channels, then increase the quantity of user's configuration parameter of being preserved, consider that by single time slot 24 code channels and every user 2 code channels 36 users' configuration parameter is preserved in normal need, also can consider to take the circumstances into consideration to increase.In this quantitative range, Node B does not refuse new user's foundation, and trigger event reports, and is set up the user and is issued user's transmission block information by the RNC judgement; If number of users exceeds the storage capacity of Node B, then Node B refuses new user's foundation.
Embodiment two
Present embodiment is in order to describe the macro diversity method implementing procedure that increases the Uu port communications.
1, grand diversity link establishment flow process can be implemented in the following manner:
(1), terminal UE is measured, is adjudicated the adjacent area pilot signal;
UE can be sent " homogeneous-frequency adjacent-domain P-CCPCH RSCP measurement " configuration by RNC to the triggering of nearby region measurement and start.Relevant parameter provides by measuring control messages, comprising decision threshold and lag time.
(2), terminal survey report triggers and reports RNC; Reporting information mainly comprises:
The resource beacon information of grand diversity incident correspondence comprises: the measured value of adjacent area scrambler number, RSCP;
(3), RNC indicates according to resource and can find out corresponding UE and NodeB.
(4), RNC is that corresponding UE and NodeB start grand diversity pooling function; Depending on the circumstances or the needs of the situation can consider simultaneously in the enforcement and the cooperating of other RRM algorithms;
(5), RNC starts grand diversity link establishment; Starting grand diversity link establishment can carry out in the following manner:
RNC notice NodeB corresponding adjacent area resource distribution mode and coded system;
Perhaps, RNC initiates request and sets up customized macros diversity passage at the Iub mouth;
(6), NodeB starts adjacent area user's demodulation sign indicating number;
(7), NodeB will deliver to RNC to the up demodulating data in adjacent area;
In the present embodiment of grand diversity link establishment, with the triggering person that UE merges as grand diversity, RNC adjudicates and dispatches.RNC starts the algorithm of grand diversity can be on NodeB reporting neighboring cell signal based measurement, in conjunction with other RMM algorithms such as Radio Link detect, load control etc. carries out, RNC guarantees that same sub-district unifies the local area and no more than 24 code channels of adjacent area resource sum of time slot allocation simultaneously.
2, grand diversity is kept flow process and can be implemented in the following manner:
(1), estimates to judge the scope of joint-detection according to RNC configuration and channels of neighboring areas; Concrete system of selection can be with considering the configuration of RNC to the adjacent area on the algorithm basis frequently original.The concrete configuration principle can be undertaken by following principle in conjunction with the needs in implementing:
The frequency algorithm guarantees the optimal demodulation of local area signal as far as possible together, and stronger interference should be included the receipt scope with the frequency algorithm as far as possible in;
The adjacent area user who has disposed is carried out with due regard to, keep the continuity of neighboring area signal demodulation sign indicating number to a certain extent, to obtain complete data block;
Can to emerging interference and the configuring adjacent cell subscriber signal set relative threshold Th.If the interference that is not configured surpasses the adjacent area code channel first thresholding Th1 of configuration, then will not dispose and disturb code channel to include JD in; If the interference that is not configured surpasses the adjacent area code channel first thresholding Th1 of configuration, be the continuity that guarantees adjacent area user decoding then to the demodulation principle that disposes code channel; In the enforcement, when Th1 was made as 0, then obviously demodulation performance was to guarantee this cell detection the best.
(2), for the measure portion of adjacent area, this part can be implemented in NodeB or RNC, specifically can implement in the following manner:
The NodeB measurement module carries out continuous measurement to the adjacent area code channel of RNC appointment, can comprise SNR, RSCP, BLER; Also can carry out other search of signal by force simultaneously;
The data that RNC uploads the grand diversity link of configuration are carried out BLER monitoring (can be used as the reference of switching scheduling algorithm during this information of same);
(3), RNC realizes that grand diversity merges;
3, grand diversity release flow process can be implemented in the following manner:
During the release of grand diversity was implemented, UE and RNC all can be used as the promoter.
(1), UE discharges grand diversity implementation process and can carry out in the following manner:
When the 4th thresholding Th4 of adjacent area P-CCPCH (Primary-Common Control Physical Channel, Primary Common Control Physical Channel) RSCP<setting, UE discharges grand diversity.
(2), RNC discharges grand diversity implementation process and can carry out in the following manner:
RNC finds that local area signal and neighboring area signal level difference surpass the second thresholding Th2 that sets;
Or the Serving cell quality is very good;
Or, when Serving cell has new user to rise to exhale or switches when entering, surpass every time slot 24 code channels if take the resource sum, then RNC triggers grand diversity link dispose procedure.
In the enforcement, can implement in the following manner for grand diversity link number control:
If the maximum code channel number ability of the joint-detection of Node B is 24 code channels, then increase the quantity of user's configuration parameter of being preserved, consider that by single time slot 24 code channels and every user 2 code channels 36 users' configuration parameter is preserved in normal need, also can consider to take the circumstances into consideration to increase.In this quantitative range, Node B does not refuse new user's foundation, and trigger event reports, and is set up the user and is issued user's transmission block information by the RNC judgement; If number of users exceeds the storage capacity of Node B, then Node B refuses new user's foundation.
By above-mentioned enforcement as can be known, carry out joint-detection by the expansion code channel number among the present invention, obtain the chip-level data of adjacent community user, and according to chip-level quality of data of adjacent community user etc., obtain the adjacent community user transmission block information that needs, according to the chip-level data and the transmission block information of adjacent community user, obtain its transport block data again, further utilized the chip-level data and the transport block data of adjacent community user to do diversity reception.
After adopting the adjacent community associated detection of the present invention, considered the interference of co-frequency neighbor cell on the one hand, the combined detection performance of this community user is improved; On the other hand, can obtain the subscriber signal of adjacent sub-district, thereby carry out grand diversity reception after can sending it to RNC, promptly select and merge according to a plurality of diversity reception signal sources.Therefore the present invention has not only improved the performance of joint-detection, can effectively remove adjacent area interference, obtains adjacent cell code chip level data and transport block data, can also utilize adjacent cell data to carry out purposes such as diversity reception simultaneously.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.