CN102612068B - LTE (long term evolution) system performance determining method and LTE system performance determining system - Google Patents
LTE (long term evolution) system performance determining method and LTE system performance determining system Download PDFInfo
- Publication number
- CN102612068B CN102612068B CN201210069432.9A CN201210069432A CN102612068B CN 102612068 B CN102612068 B CN 102612068B CN 201210069432 A CN201210069432 A CN 201210069432A CN 102612068 B CN102612068 B CN 102612068B
- Authority
- CN
- China
- Prior art keywords
- user
- channel
- lte system
- frame
- active user
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The invention discloses an LTE (long term evolution) system performance determining method and an LTE system performance determining system. The LTE system performance determining method includes: determining configuration parameter combination corresponding to current ground feature types according to preset corresponding relation between the ground feature types and the configuration parameter combination, and initializing the determined configuration parameter combination; executing the following operations to each subframe of each radio frame in the LET system: updating positions of all users and corresponding timers in the LTE system according to the initialized configuration parameter combination; executing downlink evaluation procedures when the current subframe is a downlink subframe and a downlink is evaluate currently; and executing uplink evaluation procedures when the current subframe is an uplink subframe and an uplink is evaluated currently.
Description
Technical field
The present invention relates to the communications field, particularly relate to one and determine LTE(Long Term Evolution, Long Term Evolution) method and system of systematic function.
Background technology
At present, when assessing LTE system performance, substantially be all adopt the method for system emulation modeling to set up corresponding model to each network element in wireless communication system and system environments, and by carrying out to this model the assessment that simulation test completes property indices in network.At present, the content of parameter paid close attention to due to different network elements or system environments is not identical, therefore, the model adapted with each network element, system environments is set up for different network elements or system environments, more typically assess modeling at present to represent by the flow process shown in Fig. 1, this flow process comprises the following steps 101 ~ step 117, wherein all performs step 102 ~ step 115 for all subframes in each radio frames:
Step 101, initialization the following index, index comprises: network topology, UE position, datum plane, RRM(Radio Resource Management, RRM) relevant parameter such as algorithm parameter and measurement.
Step 102, for present sub-frame, produce corresponding new calling.
Step 103, UE move control.
The pilot measurement of step 104, process present sub-frame and switching.
Step 105, Call Admission Control.
Step 106, scheduling resource distribute and MCS(Meridian Control Signal, summit control signal) selection course.
Step 107, datum plane send.
Step 108, judge whether present sub-frame is CQI(Channel Quality Indicator, CQI) CRS(Cell-specific Reference Signal in measuring period, community own reference signal) subframe, if then perform step 109, otherwise perform step 110.
The fast fading channel of step 109, all users of generation present sub-frame.
The time domain channel of all dispatched users in step 110, generation present sub-frame.
Step 111, datum plane receive.
Step 112, RRM algorithm process.
Step 113, judge that whether present sub-frame is the CRS subframe in measuring period, if then perform step 114, otherwise perform step 115.
Step 114, reference symbol process.
Step 115, judge whether all business of present sub-frame are all disposed, if then perform step 116, otherwise above-mentioned steps 102 ~ step 115 is repeated to next subframe.
Step 116, release datum plane.
Step 117, statistics export, and process ends.
Known by above-mentioned flow process, assessment modeling of the prior art is only applicable to some specific system environments or network element, but for other network element or system environments inapplicable, therefore, the applicability of existing assessment modeling is poor; On the other hand, can't carry out corresponding estimation flow in conjunction with the type of subframe and current assessment link in existing assessment modeling, therefore, accuracy is poor.
Summary of the invention
The embodiment of the present invention provides a kind of method and system determining LTE system performance, to improve the accuracy assessed LTE system performance and comprehensive.
Determine a method for Long Term Evolution LTE system performance, comprising:
Combine according to the type of ground objects pre-set and configuration parameter, determine the configuration parameter combination corresponding to current type of ground objects, and initialization is carried out to the configuration parameter combination determined;
For each subframe in each radio frames in LTE system, carry out following operation:
According to the configuration parameter combination after initialization, the position of all users in LTE system and corresponding timer are upgraded;
Present sub-frame be descending sub frame and evaluation down link time, perform arrange descending estimation flow; Present sub-frame be sub-frame of uplink and evaluation up link time, perform arrange up estimation flow.
Preferably, above-mentioned flow process also can comprise the following steps: present sub-frame is descending sub frame, and during evaluation up link, carries out following operation to each community that present sub-frame comprises:
For current area, measure the sounding reference symbol SRS of current area, and upgrade according to measuring the SRS of SRS to current area obtained;
Uplink cells scheduling is carried out to current area, and corresponding scheduling result is deposited in buffer, and, when the physical downlink control channel PDCCH channel of scheduled user in described current area needs assessment, channel tag is carried out to the PDCCH channel of this scheduled user, and the scheduling of recording scheduled user comes into force the moment.
Preferably, described descending estimation flow comprises the following steps:
Datum plane process is carried out to each user in described LTE system;
Descending scheduling is carried out to each community that present sub-frame comprises;
For each user in described LTE system, when this user have channel to be set and current need to assess this channel time, for this user generates corresponding time domain channel;
The control channel corresponding to user each in described LTE system detects.
Preferably, datum plane process is carried out to each user in described LTE system, comprising:
The high level data corresponding with active user according to the configuration parameter combination producing determined, if when the channel quality indicator CQI updated time of present sub-frame arrives, carry out corresponding CQI renewal rewards theory;
To the hybrid automatic repeat-request HARQ process of described active user;
When needing assessment Physical HARQ Indicator Channel PHICH channel if current, this PHICH channel is marked;
If when present sub-frame is Physical Broadcast Channel PBCH subframe, corresponding PBCH channel is marked.
Preferably, the control channel corresponding to user each in described LTE system detects, and comprising:
If the control channel of active user is labeled, and current when needing to assess this control channel, this control channel is detected and received;
The downlink traffic channel of described active user is detected, and corresponding physical uplink control channel PUCCH transmission timer and ACK/NACK condition timer are set according to testing result.
Preferably, described control channel is PDCCH, PHICH, PBCH or CRS.
Preferably, described up estimation flow comprises the following steps:
Datum plane process is carried out to each user in LTE system, power controls and generates the time domain channel of each user to its all adjacent area;
Traffic Channel detection and control Channel Detection is carried out to each user in described LTE system.
Preferably, described datum plane process is carried out to each user in LTE system, comprising:
For active user, the rapid fading information of this active user is upgraded, and the high level data corresponding with this active user according to the configuration parameter combination producing determined;
Judge whether present sub-frame is PUCCH delivery time, if then carry out the set of PUCCH channel tag, otherwise perform following steps A;
Steps A, judge whether present sub-frame is SRS report cycle, if then carry out the set of SRS channel and SRS resource is distributed, otherwise perform following steps B;
Step B, when described active user be HARQ state feedback timer arrive time user time, according to HARQ state feedback timer, HARQ process is upgraded; And, as the user that described user arrives for scheduling instance, send PUSCH data.
Preferably, Traffic Channel detection is carried out to each user in described LTE system, comprising:
Uplink service detection is carried out to active user;
The reception of PUSCH traffic channel data is carried out to active user, and timer is fed back to the PHICH of described active user and HARQ state feedback timer upgrades.
Preferably, control channel detection is carried out to each user in described LTE system, comprising:
Judge whether the PUCCH channel of active user is set, if then perform following steps A1, otherwise perform steps A 2;
Steps A 1, judge current the need of assessment described active user PUCCH channel, if then carry out PUCCH input, otherwise HARQ state feedback timer is revised;
Steps A 2, judge whether active user is SRS report cycle user, if then perform following steps B1, otherwise perform following steps B2;
Step B1, carry out SRS input, and perform step B2;
Step B2, the figuration carrying out active user calculate, and Updating time.
Determine a system for Long Term Evolution LTE system performance, comprising:
Parameter initialization unit, for combining according to the type of ground objects pre-set and configuration parameter, determines the configuration parameter combination corresponding to current type of ground objects, and carries out initialization to the configuration parameter combination determined;
System evaluation unit, for for each subframe in each radio frames in LTE system, starts updating block and assessment unit;
Updating block, for upgrading the position of all users in LTE system and corresponding timer according to the configuration parameter combination after initialization;
Assessment unit, for be descending sub frame at present sub-frame and evaluation down link time, perform arrange descending estimation flow; Present sub-frame be sub-frame of uplink and evaluation up link time, perform arrange up estimation flow.
Preferably, described assessment unit is further used for, and is descending sub frame at present sub-frame, and during evaluation up link, carries out following operation to each community that present sub-frame comprises:
For current area, measure the sounding reference symbol SRS of current area, and upgrade according to measuring the SRS of SRS to current area obtained;
Uplink cells scheduling is carried out to current area, and corresponding scheduling result is deposited in buffer, and, when the physical downlink control channel PDCCH channel of scheduled user in described current area needs assessment, channel tag is carried out to the PDCCH channel of this scheduled user, and the scheduling of recording scheduled user comes into force the moment.
Preferably, described assessment unit performs descending estimation flow, specifically for:
Datum plane process is carried out to each user in described LTE system;
Descending scheduling is carried out to each community that present sub-frame comprises;
For the every each user in described LTE system, when this user have channel to be set and current need to assess this channel time, for this user generates corresponding time domain channel;
The control channel corresponding to user each in described LTE system detects.
Preferably, described assessment unit carries out datum plane process to each user in described LTE system, specifically for:
The high level data corresponding with active user according to the configuration parameter combination producing determined, if when the channel quality indicator CQI updated time of present sub-frame arrives, carry out corresponding CQI renewal rewards theory;
To the hybrid automatic repeat-request HARQ process of described active user;
When needing assessment Physical HARQ Indicator Channel PHICH channel if current, this PHICH channel is marked;
If when present sub-frame is Physical Broadcast Channel PBCH subframe, corresponding PBCH channel is marked.
Preferably, the control channel that described assessment unit is corresponding to user each in described LTE system detects, specifically for:
If the control channel of active user is labeled, and current when needing to assess this control channel, this control channel is detected and received;
The downlink traffic channel of described active user is detected, and corresponding physical uplink control channel PUCCH transmission timer and ACK/NACK condition timer are set according to testing result.
Preferably, described control channel is PDCCH, PHICH, PBCH or CRS.
Preferably, described assessment unit performs descending estimation flow, specifically for:
Datum plane process is carried out to each user in LTE system, power controls and generates the time domain channel of each user to its all adjacent area;
Traffic Channel detection and control Channel Detection is carried out to each user in described LTE system.
Preferably, described assessment unit carries out datum plane process to each user in LTE system, specifically for:
For active user, the rapid fading information of this active user is upgraded, and the high level data corresponding with this active user according to the configuration parameter combination producing determined;
Judge whether present sub-frame is PUCCH delivery time, if then carry out the set of PUCCH channel tag, otherwise perform following steps A;
Steps A, judge whether present sub-frame is SRS report cycle, if then carry out the set of SRS channel and SRS resource is distributed, otherwise perform following steps B;
Step B, when described active user be HARQ state feedback timer arrive time user time, according to HARQ state feedback timer, HARQ process is upgraded; And, as the user that described user arrives for scheduling instance, send PUSCH data.
Preferably, described assessment unit carries out Traffic Channel detection to each user in described LTE system, comprising:
Uplink service detection is carried out to active user;
The reception of PUSCH traffic channel data is carried out to active user, and timer is fed back to the PHICH of described active user and HARQ state feedback timer upgrades.
Preferably, described assessment unit carries out control channel detection to each user in described LTE system, specifically for:
Judge whether the PUCCH channel of active user is set, if then perform following steps A1, otherwise perform steps A 2;
Steps A 1, judge current the need of assessment described active user PUCCH channel, if then carry out PUCCH input, otherwise HARQ state feedback timer is revised;
Steps A 2, judge whether active user is SRS report cycle user, if then perform following steps B1, otherwise perform following steps B2;
Step B1, carry out SRS input, and perform step B2;
Step B2, the figuration carrying out active user calculate, and Updating time.
In the embodiment of the present invention, on the one hand, owing to being previously provided with the corresponding relation that type of ground objects and configuration parameter combine, when needs carry out LTE system Performance Evaluation to current type of ground objects, can combine and carry out initialization by the configuration parameter corresponding to current type of ground objects; Therefore, adopt technical solution of the present invention, the configuration parameter combination adapted can be set for type of ground objects, therefore, the type of ground objects that the LTE system performance that assessment obtains is more realistic, more accurately, and can assess for all types of ground objects, therefore applicability is stronger; On the other hand, present sub-frame be descending sub frame and evaluation down link time, perform arrange descending estimation flow; Present sub-frame be sub-frame of uplink and evaluation up link time, perform arrange up estimation flow; Therefore, adopt technical solution of the present invention, the estimation flow adapted can be chosen in conjunction with the link of the type of present sub-frame and the assessment of current needs, more targeted, more accurate to the System Performance Analysis of this present sub-frame, thus improve the accuracy of the System Performance Analysis of radio frames and comprehensive, then improve accuracy that whole LTE system performance is assessed and comprehensive.
Accompanying drawing explanation
Fig. 1 is the method flow diagram assessing LTE system performance in prior art;
Fig. 2 is the method flow diagram assessing LTE system performance in the embodiment of the present invention one;
Fig. 3 is the method flow diagram assessing LTE system performance in the embodiment of the present invention two;
Fig. 4 A is the schematic diagram of descending estimation flow in the embodiment of the present invention;
Fig. 4 B is in the embodiment of the present invention in descending estimation flow, each user in described LTE system is carried out to the method flow diagram of datum plane process;
Fig. 4 C is in the embodiment of the present invention in descending estimation flow, the method flow diagram that the control channel corresponding to user each in described LTE system detects;
Fig. 4 D is in the embodiment of the present invention in descending estimation flow, to the detection of PDCCH channel and the method flow diagram of reception;
Fig. 4 E is in the embodiment of the present invention in descending estimation flow, to the detection of PHICH channel and the method flow diagram of reception;
Fig. 4 F is in the embodiment of the present invention in descending estimation flow, to the detection of PBCH channel and the method flow diagram of reception;
Fig. 5 A is the schematic diagram of up estimation flow in the embodiment of the present invention;
Fig. 5 B is in the embodiment of the present invention in up estimation flow, user each in LTE system is carried out to the method flow diagram of datum plane process;
Fig. 5 C is in the embodiment of the present invention in up estimation flow, each user in described LTE system is carried out to the method flow diagram of Traffic Channel detection;
Fig. 5 D is in the embodiment of the present invention in up estimation flow, each user in described LTE system is carried out to the method flow diagram of control channel detection;
Fig. 6 is the structural representation of the system determining LTE system performance in the embodiment of the present invention.
Embodiment
The embodiment of the present invention provides a kind of method and system determining LTE system performance, to improve the accuracy assessed LTE system performance and comprehensive.Determine that the method for LTE system performance is as follows: combine according to the type of ground objects pre-set and configuration parameter, determine the configuration parameter combination corresponding to current type of ground objects, and initialization is carried out to the configuration parameter combination determined; For each subframe in each radio frames in LTE system, carry out following operation: according to the configuration parameter combination after initialization, the position of all users in LTE system and corresponding timer are upgraded; Present sub-frame be descending sub frame and evaluation down link time, perform arrange descending estimation flow; Present sub-frame be sub-frame of uplink and evaluation up link time, perform arrange up estimation flow.
In the embodiment of the present invention, initialized process mainly comprises following content: business model initialization, mobility model initialization, the initialization of radio frequency relevant parameter, RRM algorithm initialization, datum plane be correlated with initialization, transmission mode of initialization, the relevant initialization of scheduling, channel model of being correlated with of being correlated with of being correlated with is correlated with the initialization etc. of the information such as initialization and detection.In the embodiment of the present invention, indices all can the form of data form store, and forms the combination of one or more sets configuration parameters, to have completed under different type of ground objects system modelling parameter information; Data form can be arranged flexibly according to demand, as can be the readable mode entering to read of tables of data, text or database operated.The corresponding relation that the type of ground objects pre-set and configuration parameter combine, can be as shown in the table:
For LTE system frame structure type 2, the radio frames of each 10ms is divided into the field of 2 5ms, and the field of each 5ms is divided into again the subframe of 5 1ms, and wherein each subframe is divided into again the structure of time slot of 2 0.5ms, therefore, a radio frames is equivalent to be divided into 10 subframes; In the embodiment of the present invention, in order to more fully understand the concrete operations of each subframe in a radio frames, to improve the comprehensive and accuracy assessed radio frames, then to the accuracy of the assessment of whole LTE system performance and comprehensive, also need to process each subframe in each radio frames, to obtain the assessment data of each subframe.
Below in conjunction with Figure of description, technical solution of the present invention is described in detail.
See Fig. 2, for assessing the method flow diagram of LTE system performance in the embodiment of the present invention, 201 ~ step 203 that the method comprising the steps of, wherein performs following steps 202 ~ step 203 for each subframe in each radio frames:
Step 201, the corresponding relation combined according to the type of ground objects pre-set and configuration parameter, determine the configuration parameter combination corresponding to current type of ground objects, and carry out initialization to the configuration parameter combination determined.
Step 202, according to the configuration parameter combination after initialization, the position of all users in LTE system and corresponding timer to be upgraded;
In step 202, renewal is carried out to the position of user and comprises: upgrade the information such as customer location, translational speed and moving direction, to guarantee that user moves after accessing in network topology structure.
Step 203, present sub-frame be descending sub frame and evaluation down link time, perform arrange descending estimation flow; Present sub-frame be sub-frame of uplink and evaluation up link time, perform arrange up estimation flow.
In flow process as shown in Figure 2, after processing all radio frames, the statistics of carrying out property indices exports; And discharge each entities such as datum plane.In above-mentioned steps 202 ~ step 203, before processing each user, also need to judge whether this user is new user, if new user then also needs to carry out initialization and receiving process to this user.
In step 203 in said method flow process, also can comprise the following steps, as shown in Figure 3:
Present sub-frame is descending sub frame, and during evaluation up link, carries out following operation to each community that present sub-frame comprises:
For current area, measure the SRS(Sounding Reference Symbol of current area, sounding reference symbol), and upgrade according to measuring the SRS of SRS to current area obtained;
Uplink cells scheduling is carried out to current area, and corresponding scheduling result is deposited in buffer, and, as the PDCCH(Physical Downlink Control CHannel of scheduled user in described current area, Physical Downlink Control Channel) channel need assessment time, channel tag is carried out to the PDCCH channel of this scheduled user, and the scheduling of recording scheduled user comes into force the moment.
In the embodiment of the present invention, descending estimation flow can as shown in Figure 4 A, comprise the following steps:
Step 401, datum plane process is carried out to each user in described LTE system.
Step 402, descending scheduling is carried out to each community that present sub-frame comprises.
Step 403, for each user in described LTE system, when this user have channel to be set and current need to assess this channel time, for this user generates corresponding time domain channel.
Step 404, the control channel corresponding to user each in described LTE system detect.
Step 401 in said method flow process, specifically can comprise following sub-step, as shown in Figure 4 B:
Step 401a, the high level data corresponding with active user according to the configuration parameter combination producing determined, if when the CQI updated time of present sub-frame arrives, carry out corresponding CQI renewal rewards theory;
Step 401b, HARQ(Hybrid Automatic Repeat Request to described active user, hybrid automatic repeat-request) process;
If step 401c is current need assessment PHICH(Physical Hybrid ARQ Indicator Channel, Physical HARQ Indicator Channel) channel time, this PHICH channel is marked;
If step 401d present sub-frame is PBCH(Physical Broadcast Channel, Physical Broadcast Channel) subframe time, corresponding PBCH channel is marked.
Step 404 in said method flow process, specifically can comprise following sub-step, as shown in Figure 4 C:
If the control channel of step 404a active user is labeled, and current when needing to assess this control channel, this control channel is detected and received.
Step 404b, the downlink traffic channel of described active user to be detected, and corresponding PUCCH(Physical Uplink Control CHannel is set according to testing result, physical uplink control channel) send timer and ACK/NACK condition timer.
In the embodiment of the present invention, the control channel of active user can be PDCCH, PHICH, PBCH or CRS.When control channel is PDCCH, to the detection of PDCCH channel with receive and can as shown in Figure 4 D, comprise:
Step 4d1, judge whether described PDCCH channel is set, if then perform step 4d2, otherwise continue to judge whether next control channel of active user is set.
Step 4d2, currently to assess the need of to described PDCCH channel, if then perform step 4d3, otherwise continue to judge whether next control channel of active user is set.
Step 4d3, carry out PDCCH input.
Step 4d4, reception PDCCH channel.
When control channel is PHICH channel, to the detection of PHICH channel with receive and can as shown in Figure 4 E, comprise:
Step 4e1, judge whether described PHICH channel is set, if then perform step 4e2, otherwise continue to judge whether next control channel of active user is set.
Step 4e2, currently to assess the need of to described PHICH channel, if then perform step 4e3, otherwise continue to judge whether next control channel of active user is set.
Step 4e3, carry out PHICH input.
Step 4e4, reception PHICH channel.
When control channel is PBCH channel, to the detection of PBCH channel with receive and can as illustrated in figure 4f, comprise:
Step 4f1, judge whether described PBCH channel is set, if then perform step 4f2, otherwise continue to judge whether next control channel of active user is set.
Step 4f2, currently to assess the need of to described PBCH channel, if then perform step 4f3, otherwise continue to judge whether next control channel of active user is set.
Step 4f3, carry out PBCH input.
Step 4f4, reception PBCH channel.
In the embodiment of the present invention, up estimation flow comprises the following steps, as shown in Figure 5A:
Step 501, each user in LTE system carried out to datum plane process, power controls and generates the time domain channel of each user to its all adjacent area.
Step 502, Traffic Channel detection and control Channel Detection is carried out to each user in described LTE system.
In said method flow process, in step 501, datum plane process is carried out to each user every in LTE system, specifically can comprise following sub-step, as shown in Figure 5 B:
Step 501a, for active user, the rapid fading information of this active user to be upgraded.
Step 501b, the high level data corresponding with this active user according to the configuration parameter combination producing determined.
Step 501c, judge whether present sub-frame is PUCCH delivery time, if then perform step 501d, otherwise perform step 501e.
Step 501d, carry out the set of PUCCH channel tag.
Step 501e, judge whether present sub-frame is SRS report cycle, if then perform step 501f, otherwise perform step 501g.
Step 501f, carry out the set of SRS channel and SRS resource and distribute.
Step 501g, when described active user be HARQ state feedback timer arrive time user time, according to HARQ state feedback timer, HARQ process is upgraded; And, as the user that described user arrives for scheduling instance, send PUSCH(Physical Uplink Shared Channel, Physical Uplink Shared Channel) data.
In the step 502 of said method flow process, Traffic Channel detection is carried out to each user in described LTE system and specifically comprises following sub-step, as shown in Figure 5 C:
Step 502c1, uplink service detection is carried out to active user.
Step 502c2, the reception of PUSCH traffic channel data is carried out to active user, and timer is fed back to the PHICH of described active user and HARQ state feedback timer upgrades.
In step 502 in said method flow process, control channel detection is carried out to each user in described LTE system, comprises following sub-step, as shown in Figure 5 D:
Step 502d1, judge whether the PUCCH channel of active user is set, if then perform step 502d2, otherwise perform step 502d5.
Step 502d2, judge current the need of assessment described active user PUCCH channel, if then perform step 502d3, otherwise perform step 502d4.
Step 502d3, carry out PUCCH input.
Step 502d4, HARQ state feedback timer to be revised.
Step 502d5, judge whether active user is SRS report cycle user, if then perform step 502d6, otherwise perform step 502d7.
Step 502d6, carry out SRS input, and perform step 502d7.
Step 502d7, the figuration carrying out active user calculate, and upgrade relevant timer, and associated timer refers to up CQI timer (also referred to as ascending pilot frequency timer) herein.
Based on preceding method flow process, the embodiment of the present invention also provides a kind of system determining LTE system performance, and the structure of this system as shown in Figure 6, comprising:
Parameter initialization unit 61, for the corresponding relation combined according to the type of ground objects pre-set and configuration parameter, determines the configuration parameter combination corresponding to current type of ground objects, and carries out initialization to the configuration parameter combination determined;
System evaluation unit 62, for for each subframe in each radio frames in LTE system, starts updating block and assessment unit;
Updating block 63, for upgrading the position of all users in LTE system and corresponding timer according to the configuration parameter combination after initialization;
Assessment unit 64, for be descending sub frame at present sub-frame and evaluation down link time, perform arrange descending estimation flow; Present sub-frame be sub-frame of uplink and evaluation up link time, perform arrange up estimation flow.
Preferably, assessment unit 64 is further used for, and is descending sub frame at present sub-frame, and during evaluation up link, carries out following operation to each community that present sub-frame comprises:
For current area, measure the SRS of current area, and upgrade according to the SRS of measurement result to current area;
Uplink cells scheduling is carried out to current area, and corresponding scheduling result is deposited in buffer, and, when the PDCCH channel of scheduled user in described current area needs assessment, channel tag is carried out to the PDCCH channel of this scheduled user, and the scheduling of recording scheduled user comes into force the moment.
Preferably, assessment unit 64 performs descending estimation flow, specifically for:
Datum plane process is carried out to each user in described LTE system;
Descending scheduling is carried out to each community that present sub-frame comprises;
For each user in described LTE system, when this user have channel to be set and current need to assess this channel time, for this user generates corresponding time domain channel;
The control channel corresponding to user each in described LTE system detects.
Preferably, assessment unit 64 carries out datum plane process to each user in described LTE system, specifically for:
The high level data corresponding with active user according to the configuration parameter combination producing determined, if when the CQI updated time of present sub-frame arrives, carry out corresponding CQI renewal rewards theory;
To the HARQ process of described active user;
When needing assessment PHICH channel if current, this PHICH channel is marked;
If when present sub-frame is PBCH subframe, corresponding PBCH channel is marked.
Preferably, the control channel that assessment unit 64 is corresponding to user each in described LTE system detects, specifically for:
If the control channel of active user is labeled, and current when needing to assess this control channel, this control channel is detected and received;
The downlink traffic channel of described active user is detected, and corresponding PUCCH transmission timer and HARQ state feedback timer are set according to testing result.
Preferably, control channel is PDCCH, PHICH, PBCH or CRS.
Preferably, assessment unit 64 performs up estimation flow, specifically for:
Datum plane process is carried out to each user in LTE system, power controls and generates the time domain channel of each user to its all adjacent area;
Traffic Channel detection and control Channel Detection is carried out to each user in described LTE system.
Preferably, each user in assessment unit 64 pairs of LTE system carries out datum plane process, specifically for:
For active user, the rapid fading information of this active user is upgraded, and the high level data corresponding with this active user according to the configuration parameter combination producing determined;
Judge whether present sub-frame is PUCCH delivery time, if then carry out the set of PUCCH channel tag, otherwise perform following steps A;
Steps A, judge whether present sub-frame is SRS report cycle, if then carry out the set of SRS channel and SRS resource is distributed, otherwise perform following steps B;
Step B, when described active user be HARQ state feedback timer arrive time user time, according to HARQ state feedback timer, HARQ process is upgraded; And, as the user that described user arrives for scheduling instance, send PUSCH data.
Preferably, assessment unit 64 carries out Traffic Channel detection to each user in described LTE system, comprising:
Uplink service detection is carried out to active user;
The reception of PUSCH traffic channel data is carried out to active user, and timer is fed back to the PHICH of described active user and HARQ state feedback timer upgrades.
Preferably, assessment unit 64 carries out control channel detection to each user in described LTE system, specifically for:
Judge whether the PUCCH channel of active user is set, if then perform following steps A1, otherwise perform steps A 2;
Steps A 1, judge current the need of assessment described active user PUCCH channel, if then carry out PUCCH input, otherwise HARQ state feedback timer is revised;
Steps A 2, judge whether active user is SRS report cycle user, if then perform following steps B1, otherwise perform following steps B2;
Step B1, carry out SRS input, and perform step B2;
Step B2, the figuration carrying out active user calculate, and upgrade associated timer.
In the embodiment of the present invention, on the one hand, owing to being previously provided with the corresponding relation that each type of ground objects and configuration parameter combine, when needs carry out LTE system Performance Evaluation to current type of ground objects, the configuration parameter combination corresponding to current type of ground objects can carry out initialization; Therefore, adopt technical solution of the present invention, the configuration parameter combination adapted can be set for type of ground objects, therefore, the type of ground objects that the LTE system performance that assessment obtains is more realistic, more accurately, and can assess for all types of ground objects, therefore applicability is stronger; On the other hand, present sub-frame be descending sub frame and evaluation down link time, perform arrange descending estimation flow; Present sub-frame be sub-frame of uplink and evaluation up link time, perform arrange up estimation flow; Therefore, adopt technical solution of the present invention, the estimation flow adapted can be chosen in conjunction with the link of the type of present sub-frame and the assessment of current needs, more targeted, more accurate to the System Performance Analysis of this present sub-frame, thus improve the accuracy of the System Performance Analysis of radio frames and comprehensive, then improve accuracy that whole LTE system performance is assessed and comprehensive.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if belong within the scope of the claims in the present invention and equivalent technologies thereof to these amendments of the present invention and modification, then the present invention is also intended to comprise these change and modification.
Claims (16)
1. determine a method for Long Term Evolution LTE system performance, it is characterized in that, comprising:
According to the corresponding relation that the type of ground objects pre-set and configuration parameter combine, determine the configuration parameter combination corresponding to current type of ground objects, and initialization is carried out to the configuration parameter combination determined;
For each subframe in each radio frames in LTE system, carry out following operation:
According to the configuration parameter combination after initialization, the position of all users in LTE system and corresponding timer are upgraded;
Present sub-frame be descending sub frame and evaluation down link time, perform arrange descending estimation flow; Present sub-frame be sub-frame of uplink and evaluation up link time, perform arrange up estimation flow;
Described descending estimation flow comprises the following steps:
Datum plane process is carried out to each user in described LTE system; Descending scheduling is carried out to each community that present sub-frame comprises; For each user in described LTE system, when this user have channel to be set and current need to assess this channel time, for this user generates corresponding time domain channel; The control channel corresponding to user each in described LTE system detects;
Described up estimation flow comprises the following steps:
Datum plane process is carried out to each user in LTE system, power controls and generates the time domain channel of each user to its all adjacent area;
Traffic Channel detection and control Channel Detection is carried out to each user in described LTE system.
2. the method for claim 1, is characterized in that, also comprises:
Present sub-frame is descending sub frame, and during evaluation up link, carries out following operation to each community that present sub-frame comprises:
For current area, measure the sounding reference symbol SRS of current area, and upgrade according to measuring the SRS of SRS to current area obtained;
Uplink cells scheduling is carried out to current area, and corresponding scheduling result is deposited in buffer, and, when the physical downlink control channel PDCCH channel of scheduled user in described current area needs assessment, channel tag is carried out to the PDCCH channel of this scheduled user, and the scheduling of recording scheduled user comes into force the moment.
3. the method for claim 1, is characterized in that, in described descending estimation flow, carries out datum plane process, comprising each user in described LTE system:
The high level data corresponding with active user according to the configuration parameter combination producing determined, if when the channel quality indicator CQI updated time of present sub-frame arrives, carry out corresponding CQI renewal rewards theory;
To the hybrid automatic repeat-request HARQ process of described active user;
When needing assessment Physical HARQ Indicator Channel PHICH channel if current, this PHICH channel is marked;
If when present sub-frame is Physical Broadcast Channel PBCH subframe, corresponding PBCH channel is marked.
4. the method for claim 1, is characterized in that, in described descending estimation flow, the control channel corresponding to user each in described LTE system detects, and comprising:
If the control channel of active user is labeled, and current when needing to assess this control channel, this control channel is detected and received;
The downlink traffic channel of described active user is detected, and corresponding physical uplink control channel PUCCH transmission timer and ACK/NACK condition timer are set according to testing result.
5. method as claimed in claim 4, it is characterized in that, described control channel is PDCCH, PHICH, PBCH or CRS.
6. the method for claim 1, is characterized in that, in described up estimation flow, describedly carries out datum plane process to each user in LTE system, comprising:
For active user, the rapid fading information of this active user is upgraded, and the high level data corresponding with this active user according to the configuration parameter combination producing determined;
Judge whether present sub-frame is PUCCH delivery time, if then carry out the set of PUCCH channel tag, otherwise perform following steps A;
Steps A, judge whether present sub-frame is SRS report cycle, if then carry out the set of SRS channel and SRS resource is distributed, otherwise perform following steps B;
Step B, when described active user be HARQ state feedback timer arrive time user time, according to HARQ state feedback timer, HARQ process is upgraded; And, as the user that described user arrives for scheduling instance, send PUSCH data.
7. the method for claim 1, is characterized in that, in described up estimation flow, carries out Traffic Channel detection, comprising each user in described LTE system:
Uplink service detection is carried out to active user;
The reception of PUSCH traffic channel data is carried out to active user, and timer is fed back to the PHICH of described active user and HARQ state feedback timer upgrades.
8. the method for claim 1, is characterized in that, in described up estimation flow, carries out control channel detection, comprising each user in described LTE system:
Judge whether the PUCCH channel of active user is set, if then perform following steps A1, otherwise perform steps A 2;
Steps A 1, judge current the need of assessment described active user PUCCH channel, if then carry out PUCCH input, otherwise HARQ state feedback timer is revised;
Steps A 2, judge whether active user is SRS report cycle user, if then perform following steps B1, otherwise perform following steps B2;
Step B1, carry out SRS input, and perform step B2;
Step B2, the figuration carrying out active user calculate, and Updating time.
9. determine a system for Long Term Evolution LTE system performance, it is characterized in that, comprising:
Parameter initialization unit, for the corresponding relation combined according to the type of ground objects pre-set and configuration parameter, determines the configuration parameter combination corresponding to current type of ground objects, and carries out initialization to the configuration parameter combination determined;
System evaluation unit, for for each subframe in each radio frames in LTE system, starts updating block and assessment unit;
Updating block, for upgrading the position of all users in LTE system and corresponding timer according to the configuration parameter combination after initialization;
Assessment unit, for be descending sub frame at present sub-frame and evaluation down link time, perform arrange descending estimation flow; Present sub-frame be sub-frame of uplink and evaluation up link time, perform arrange up estimation flow;
Described assessment unit performs descending estimation flow, specifically for:
Datum plane process is carried out to each user in described LTE system; Descending scheduling is carried out to each community that present sub-frame comprises; For each user in described LTE system, when this user have channel to be set and current need to assess this channel time, for this user generates corresponding time domain channel; The control channel corresponding to user each in described LTE system detects;
Described assessment unit performs up estimation flow, specifically for:
Datum plane process is carried out to each user in LTE system, power controls and generates the time domain channel of each user to its all adjacent area;
Traffic Channel detection and control Channel Detection is carried out to each user in described LTE system.
10. system as claimed in claim 9, it is characterized in that, described assessment unit is further used for, and is descending sub frame at present sub-frame, and during evaluation up link, carries out following operation to each community that present sub-frame comprises:
For current area, measure the sounding reference symbol SRS of current area, and upgrade according to measuring the SRS of SRS to current area obtained;
Uplink cells scheduling is carried out to current area, and corresponding scheduling result is deposited in buffer, and, when the physical downlink control channel PDCCH channel of scheduled user in described current area needs assessment, channel tag is carried out to the PDCCH channel of this scheduled user, and the scheduling of recording scheduled user comes into force the moment.
11. systems as claimed in claim 9, it is characterized in that, described assessment unit performs descending estimation flow, carries out datum plane process to each user in described LTE system, specifically for:
The high level data corresponding with active user according to the configuration parameter combination producing determined, if when the channel quality indicator CQI updated time of present sub-frame arrives, carry out corresponding CQI renewal rewards theory;
To the hybrid automatic repeat-request HARQ process of described active user;
When needing assessment Physical HARQ Indicator Channel PHICH channel if current, this PHICH channel is marked;
If when present sub-frame is Physical Broadcast Channel PBCH subframe, corresponding PBCH channel is marked.
12. systems as claimed in claim 9, it is characterized in that, described assessment unit performs descending estimation flow, and the control channel corresponding to user each in described LTE system detects, specifically for:
If the control channel of active user is labeled, and current when needing to assess this control channel, this control channel is detected and received;
The downlink traffic channel of described active user is detected, and corresponding physical uplink control channel PUCCH transmission timer and ACK/NACK condition timer are set according to testing result.
13. systems as claimed in claim 12, it is characterized in that, described control channel is PDCCH, PHICH, PBCH or CRS.
14. systems as claimed in claim 9, it is characterized in that, described assessment unit performs up estimation flow, carries out datum plane process to each user in LTE system, specifically for:
For active user, the rapid fading information of this active user is upgraded, and the high level data corresponding with this active user according to the configuration parameter combination producing determined;
Judge whether present sub-frame is PUCCH delivery time, if then carry out the set of PUCCH channel tag, otherwise perform following steps A;
Steps A, judge whether present sub-frame is SRS report cycle, if then carry out the set of SRS channel and SRS resource is distributed, otherwise perform following steps B;
Step B, when described active user be HARQ state feedback timer arrive time user time, according to HARQ state feedback timer, HARQ process is upgraded; And, as the user that described user arrives for scheduling instance, send PUSCH data.
15. systems as claimed in claim 9, it is characterized in that, described assessment unit performs up estimation flow, carries out Traffic Channel detection, comprising each user in described LTE system:
Uplink service detection is carried out to active user;
The reception of PUSCH traffic channel data is carried out to active user, and timer is fed back to the PHICH of described active user and HARQ state feedback timer upgrades.
16. systems as claimed in claim 9, it is characterized in that, described assessment unit performs up estimation flow, carries out control channel detection to each user in described LTE system, specifically for:
Judge whether the PUCCH channel of active user is set, if then perform following steps A1, otherwise perform steps A 2;
Steps A 1, judge current the need of assessment described active user PUCCH channel, if then carry out PUCCH input, otherwise HARQ state feedback timer is revised;
Steps A 2, judge whether active user is SRS report cycle user, if then perform following steps B1, otherwise perform following steps B2;
Step B1, carry out SRS input, and perform step B2;
Step B2, the figuration carrying out active user calculate, and Updating time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210069432.9A CN102612068B (en) | 2012-03-15 | 2012-03-15 | LTE (long term evolution) system performance determining method and LTE system performance determining system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210069432.9A CN102612068B (en) | 2012-03-15 | 2012-03-15 | LTE (long term evolution) system performance determining method and LTE system performance determining system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102612068A CN102612068A (en) | 2012-07-25 |
| CN102612068B true CN102612068B (en) | 2015-01-07 |
Family
ID=46529159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210069432.9A Active CN102612068B (en) | 2012-03-15 | 2012-03-15 | LTE (long term evolution) system performance determining method and LTE system performance determining system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102612068B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104469946B (en) * | 2013-09-13 | 2018-08-03 | 普天信息技术研究院有限公司 | A kind of physical uplink control channel resource distribution method |
| CN104469947B (en) * | 2013-09-17 | 2018-08-03 | 普天信息技术有限公司 | A kind of uplink and downlink federated resource distribution method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101969651A (en) * | 2009-07-28 | 2011-02-09 | 中兴通讯股份有限公司 | Exponential type load estimation method and device in LTE system |
-
2012
- 2012-03-15 CN CN201210069432.9A patent/CN102612068B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101969651A (en) * | 2009-07-28 | 2011-02-09 | 中兴通讯股份有限公司 | Exponential type load estimation method and device in LTE system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102612068A (en) | 2012-07-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5982579B2 (en) | Network coverage planning method and apparatus for evolution communication system | |
| CN101964985B (en) | Coverage and capacity self-optimization device of self-organization network in LTE/LTE-A and method thereof | |
| CN102265543B (en) | Method and device for correcting channel quality indication value | |
| CN102368697A (en) | Interference measurement signaling notification method, interference measurement method, feedback method and apparatuses thereof | |
| CN102771098A (en) | Method and arrangement in a telecommunications system | |
| CN103874217A (en) | Uplink anti-interference method and device in TDD-LTE system | |
| CN104221421A (en) | System and method for measurement report triggering configuration for multiple point communication measurement set management | |
| CN105142227B (en) | A kind of determination method and apparatus of MCS grade | |
| CN104285159A (en) | Supporting an update of stored information | |
| US7120432B2 (en) | Method of simulating operating conditions of a telecommunication system requiring a limited amount of computing power | |
| Bakri et al. | Data-driven RAN slicing mechanisms for 5G and beyond | |
| JP6811333B2 (en) | Extended Channel Quality Indicator (CQI) measurement procedure for URLLC | |
| CN106888062A (en) | CQI estimates, SINR determines method and relevant device | |
| WO2013026350A1 (en) | Method and device for assessing system performance | |
| CN102612068B (en) | LTE (long term evolution) system performance determining method and LTE system performance determining system | |
| CN101192858B (en) | Method and device for power control in the downlink high-speed data transmission system | |
| EP2940884A1 (en) | Method and device for determining comp user | |
| CN105101104B (en) | Method, base station and the monitor terminal of CCE aggregation levels are adjusted in group service | |
| CN100512553C (en) | High speed downward grouping cut-in method for base station and correcting method for channel quality instruction | |
| CN103188183A (en) | Method and device for obtaining cell-specific reference signal (C-RS) interference-to-noise ratio in long term evolution (LTE) planning simulation | |
| CN103313371B (en) | The power processing method and device of PUCCH format1 series | |
| CN102958090B (en) | Method and device for evaluating channel performance | |
| US20230284154A1 (en) | Delay-tolerant constrained online convex optimization | |
| CN114650606A (en) | Communication equipment, media access control layer architecture and implementation method thereof | |
| WO2021063869A1 (en) | Adapting a filter configuration for measurement filtering |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee after: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY Address before: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee before: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210602 Address after: 100085 1st floor, building 1, yard 5, Shangdi East Road, Haidian District, Beijing Patentee after: DATANG MOBILE COMMUNICATIONS EQUIPMENT Co.,Ltd. Address before: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee before: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY |