CN101277176B - Method, equipment and system for adjusting mixed automatic retransmission time - Google Patents
Method, equipment and system for adjusting mixed automatic retransmission time Download PDFInfo
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- CN101277176B CN101277176B CN2008100281194A CN200810028119A CN101277176B CN 101277176 B CN101277176 B CN 101277176B CN 2008100281194 A CN2008100281194 A CN 2008100281194A CN 200810028119 A CN200810028119 A CN 200810028119A CN 101277176 B CN101277176 B CN 101277176B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1867—Arrangements specially adapted for the transmitter end
- H04L1/1887—Scheduling and prioritising arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
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Abstract
The embodiment of the invention discloses a method for adjusting mix automatic retransmission times which includes: obtaining subdistrict upstream wireless network resource condition; adjusting prior mix automatic retransmission times according with obtained upstream wireless network resource condition. The invention embodiment also discloses an equipment for adjusting mix automatic retransmission times which includes: an obtain module for obtaining subdistrict upstream wireless network resource condition; an adjustable module for adjusting prior mix automatic retransmission times according with obtained upstream wireless network resource condition by the obtain module. The embodiment of the invention also discloses a mix automatic retransmission times adjusting system, the system can satisfy retransmission requirement in various network condition by adjusting HARQ retransmission times according with subdistrict upstream wireless network resource condition.
Description
Technical field
The present invention relates to a kind of communications applications field, relate in particular to a kind of method and apparatus and system that adjusts mixed automatic retransmission time.
Background technology
(High Speed Uplink Packet Access HSUPA) is the wireless side up link enhancement techniques that third generation partner program (3GPP) protocol architecture is introduced in the R6 version in the high speed uplink packet access.HSUPA is by adopting many yards transmission, mixing re-transmission (Hybrid Automatic Repeat ReQuest automatically, HARQ), based on the key technologies such as fast dispatch of base station (NodeB), make single sub-district maximal uplink throughput reach 5.76Mbit/s, Wideband Code Division Multiple Access (WCDMA) (Wideband CDMA, WCDMA) the data service bearing capacity and the availability of frequency spectrum of up link have been strengthened greatly.Five new physical channels in HSUPA, have been introduced, comprise: the Dedicated Physical Data Channel of enhancing (Enhanced-Dedicated PhysicalData Channel, E-DPDCH), Dedicated Physical Control Channel (the Enhanced-DedicatedPhysical Control Channel that strengthens, E-DPCCH), absolute scheduling channel (the Enhanced-AbsoluteGrant Channel that strengthens, E-AGCH), relative scheduling channel (the Enhanced-Relative GrantChannel that strengthens, E-RGCH), combining retransmission indicating channel (the Enhanced-Hybrid ARQ IndicatorChannel that strengthens, E-HICH), and two new medium access control (Medium Access Control, MAC) entity MAC-e and MAC-es, and the packet scheduling function from radio network controller (Radio NetworkController, RNC) move down into NodeB, realized fast packet scheduling based on NodeB, and by mixing re-transmission (HARQ) automatically, 2ms is wireless short frame and many yards key technologies such as transmission, make the data throughput of up link can reach 5.76Mbit/s, greatly the bearing capacity of the uplink data business of Ti Gaoing.
Service quality (Quality of Service in the existing HSUPA system, QoS) generally all be provided with average HARQ number of retransmissions (Number of HARQ Retransmission in the control, NHR), this average N HR is a fixing value, (Outer Loop Power Control OLPC) realizes by external circule power control in QoS control.OLPC is by protocol Data Unit (the Protocol Data Unit on cycle monitoring MAC-e and/or the MAC-es, PDU) number of retransmissions, adjust signal-to-jamming ratio (Signalto Interference Ratio, SIR) desired value according to the number of retransmissions of actual count and the relation of number of retransmissions desired value.
In the HSUPA system to each business all assignment have bit rate (Maximum Bit Rate, MBR), and UE or NodeB have the maximum capacity of oneself, professional hump speed is the minimum value to MBR and the assignment of NodeB maximum capacity.In realizing process of the present invention, the inventor finds that there are the following problems at least in the prior art: if but when the NHR value of this configuration is bigger, when the power termination of sub-district is lighter, the business speed that can not reach capacity; When if the NHR value of this configuration is smaller, when the power termination of sub-district is lighter, wasted the capacity of sub-district, thereby the NHR value of the setting here can not finely satisfy the demand under the network state.
Summary of the invention
In view of above-mentioned existing in prior technology problem, the embodiment of the invention provides a kind of method and apparatus and system that adjusts mixed automatic retransmission time.According to the method that the embodiment of the invention provided, realized dynamic adjustment to the HARQ number of retransmissions according to the up-link wireless network resource status.
In order to solve the problems of the technologies described above, the embodiment of the invention has proposed a kind of method of adjusting mixed automatic retransmission time, comprising:
Obtain the up-link wireless network resource status of sub-district, described up-link wireless Internet resources comprise the power termination of sub-district and the Channel Elements occupancy of sub-district;
Adjust current mixed automatic retransmission time according to the up-link wireless network resource status that obtains, the up-link wireless network resource status that described basis is obtained is adjusted current mixed automatic retransmission time and is comprised: retransmit the power termination congestion threshold if the power termination of the described sub-district that obtains is not more than default up self adaptation, and the Channel Elements occupancy of the described sub-district that obtains then reduces described current mixed automatic retransmission time greater than default up self adaptation retransfer channel element resources congestion threshold.
Accordingly, the embodiment of the invention has also proposed mixed automatic retransmission time and has adjusted equipment, comprising:
Acquisition module is used to obtain the up-link wireless network resource status of sub-district, and described up-link wireless Internet resources comprise the power termination of sub-district and the Channel Elements occupancy of sub-district;
Adjusting module, the up-link wireless network resource status that is used for obtaining according to described acquisition module is adjusted current mixed automatic retransmission time; Described adjusting module comprises:
Second judging unit, whether the power termination that is used for judging the sub-district of the described up-link wireless network resource status that obtains retransmits the power termination congestion threshold greater than default up self adaptation, and whether the Channel Elements occupancy of the sub-district in the described up-link wireless network resource status that obtains is greater than default up self adaptation retransfer channel element resources congestion threshold;
Second adjustment unit, the power termination that is used in the described sub-district that obtains of second judgment unit judges is not more than up self adaptation re-transmission power termination congestion threshold, and the Channel Elements occupancy of the described sub-district that obtains reduces described current mixed automatic retransmission time during greater than up self adaptation retransfer channel element resources congestion threshold.
Implement the embodiment of the invention,, can adjust the HARQ number of retransmissions dynamically, satisfy the re-transmission requirement under the heterogeneous networks state according to the difference of the up-link wireless network resource status at place, sub-district.
Description of drawings
Fig. 1 is the flow chart of the adjustment mixed automatic retransmission time method in the embodiment of the invention;
Fig. 2 is first particular flow sheet of the adjustment mixed automatic retransmission time method in the embodiment of the invention;
Fig. 3 is second particular flow sheet of the adjustment mixed automatic retransmission time method in the embodiment of the invention;
Fig. 4 is the 3rd particular flow sheet of the adjustment mixed automatic retransmission time method in the embodiment of the invention
Fig. 5 is that the mixed automatic retransmission time in the embodiment of the invention is adjusted the device structure schematic diagram;
Fig. 6 a to Fig. 6 c is the adjusting module structural representation in the embodiment of the invention;
Fig. 7 is the mixed automatic retransmission time Adjustment System structure chart in the embodiment of the invention.
Embodiment
The embodiment of the invention provides a kind of method and apparatus and system that adjusts mixed automatic retransmission time.According to the method that the embodiment of the invention provided, realized according to of the dynamic adjustment of up-link wireless network resource status to the HARQ number of retransmissions.
Fig. 1 shows the flow chart of the adjustment mixed automatic retransmission time method in the embodiment of the invention, the embodiment of the invention is by obtaining the up-link wireless network resource status of sub-district, adjust current HARQ number of retransmissions according to the described up-link wireless network resource status of obtaining, this method can comprise:
Step S101: the up-link wireless network resource status that obtains the sub-district;
The up-link wireless network resource status that obtains the sub-district can have multiple mode, such as, obtain after obtaining or initiatively detect according to the message that receives.And that the up-link wireless Internet resources comprise is following at least a: the Channel Elements occupancy of the power termination of sub-district, sub-district, all are the ratio etc. of the bit rate of user's the actual transfer rate of Serving cell and assignment with this sub-district.The active detecting process here can have multiple mode, such as the sense cycle by setting in advance, detects according to the ascending wireless resource situation of described sense cycle to the sub-district.
Step S102: the up-link wireless network resource status according to the sub-district that obtains is adjusted the HARQ number of retransmissions.
Wherein, current HARQ number of retransmissions is adjusted, multiple mode can be arranged:
When improving current HARQ number of retransmissions at needs, this current HARQ number of retransmissions can be adjusted into the HARQ number of retransmissions higher limit that sets in advance, promptly high re-transmission desired value; Perhaps, according to the adjustment step-length that sets in advance, adjust upward current HARQ number of retransmissions; Perhaps, be the HARQ number of retransmissions lower limit that sets in advance at current HARQ number of retransmissions, promptly hang down when retransmitting desired value, current HARQ number of retransmissions is adjusted into the HARQ number of retransmissions higher limit that sets in advance, promptly high re-transmission desired value; Perhaps, less than the HARQ number of retransmissions higher limit that sets in advance, during promptly high re-transmission desired value,, adjust upward current HARQ number of retransmissions at current HARQ number of retransmissions according to the adjustment step-length that sets in advance.
When reducing current HARQ number of retransmissions at needs, current HARQ number of retransmissions can be adjusted into the HARQ number of retransmissions lower limit that sets in advance, the promptly low desired value that retransmits; Perhaps, according to the adjustment step-length that sets in advance, adjust current HARQ number of retransmissions downwards; Perhaps, be the HARQ number of retransmissions higher limit that sets in advance at current HARQ number of retransmissions, during promptly high re-transmission desired value, current HARQ number of retransmissions is adjusted into the HARQ number of retransmissions lower limit that sets in advance, the promptly low desired value that retransmits; Perhaps, greater than the HARQ number of retransmissions lower limit that sets in advance, promptly hang down when retransmitting desired value,, adjust current HARQ number of retransmissions downwards according to the adjustment step-length that sets in advance at current HARQ number of retransmissions.
First particular flow sheet of the adjustment mixed automatic retransmission time method in the embodiment of the invention has been shown among Fig. 2, has adjusted the HARQ number of retransmissions, having comprised according to the power termination of the sub-district that obtains:
Step S201: the power termination of obtaining the sub-district;
Step S202: judge that whether described power termination retransmits power termination relieve congestion thresholding less than default up self adaptation, if the power termination of sub-district retransmits power termination relieve congestion thresholding less than default up self adaptation, then carries out step S203;
Step S203: judge whether the HARQ number of retransmissions is the high desired value that retransmits, if the high desired value that retransmits is then carried out step S204;
Step S204: height is retransmitted desired value be adjusted into the low desired value that retransmits.
Under the lower situation of the power termination of sub-district, reduce current HARQ number of retransmissions value, can help to improve professional maximum effective speed, because professional maximum effective speed is MBR/ (a 1+ average repeat time), getting maximum effective speed when ratio uses high the re-transmission when using low the re-transmission can improve certainly, effectively utilize the load resource of eating dishes without rice or wine, when the power termination of sub-district is low, current HARQ number of retransmissions is placed the low re-transmission desired value that sets in advance here.When the power termination of sub-district retransmits the power termination congestion threshold less than up self adaptation, the power termination of sub-district is in not congestion state, here current HARQ number of retransmissions is placed one to hang down when retransmitting desired value, should lowly retransmit desired value is the QoS control target of HSUPA business, can not cause that by this adjustment CE is congested.The method of adjustment here also is not limited to aforesaid way and realizes, as in reducing current HARQ number of retransmissions, current HARQ number of retransmissions being adjusted into the HARQ number of retransmissions lower limit that sets in advance, and the promptly low desired value that retransmits; Perhaps, according to the adjustment step-length that sets in advance, adjust current HARQ number of retransmissions downwards; Perhaps, be the HARQ number of retransmissions higher limit that sets in advance at current HARQ number of retransmissions, during promptly high re-transmission desired value, current HARQ number of retransmissions is adjusted into the HARQ number of retransmissions lower limit that sets in advance, the promptly low desired value that retransmits; Perhaps, greater than the HARQ number of retransmissions lower limit that sets in advance, promptly hang down when retransmitting desired value,, adjust described current HARQ number of retransmissions downwards according to the adjustment step-length that sets in advance at current HARQ number of retransmissions.
Second particular flow sheet of the self adaptation adjustment number of retransmissions method in the embodiment of the invention has been shown among Fig. 3, has adjusted current HARQ number of retransmissions, having comprised according to the power termination of the sub-district that obtains and the Channel Elements occupancy of sub-district:
Step S301: obtain the power termination of sub-district and the Channel Elements occupancy of sub-district;
Step S302: judge whether described power termination is not more than default up self adaptation and retransmits the power termination congestion threshold, if then carry out step S303;
Step S303: judge that whether described Channel Elements occupancy is greater than default up self adaptation retransfer channel element resources congestion threshold, if then carry out step S304;
Need to prove that step S302 and step S303 are in no particular order, satisfy described power termination at the same time and whether be not more than default up self adaptation re-transmission power termination congestion threshold, and whether described Channel Elements occupancy is greater than just carrying out step S304 under the default up self adaptation retransfer channel element resources congestion threshold situation.
Step S304: judge whether the HARQ number of retransmissions is greater than the HARQ lower limit that sets in advance, if greater than would carry out step S305;
Step S305: the adjustment step-length that sets in advance, adjust described current HARQ number of retransmissions downwards.
Need to prove that when the power termination of sub-district was higher than up self adaptation and retransmits the power termination congestion threshold, then the power termination of this sub-district was in congestion state; When the CE of sub-district occupancy was higher than up self adaptation and retransmits CE resource congestion thresholding, then this CE was in state in short supply.Be in congestion state in the CE resource, and the power termination of sub-district reduces HARQ number of retransmissions value and can help to improve the CE utilance when not being in congestion state, can improve the sub-district throughput.After HARQ number of retransmissions value is lowered, the part interface-free resources on the base station can be discharged, thereby also corresponding C E can be discharged, can improve the CE utilance by this set, improve cell capacity.The method of adjustment here also is not limited to aforesaid way and realizes, as in reducing current HARQ number of retransmissions, current HARQ number of retransmissions being adjusted into the HARQ number of retransmissions lower limit that sets in advance, and the promptly low desired value that retransmits; Perhaps, according to the adjustment step-length that sets in advance, adjust described current HARQ number of retransmissions downwards; Perhaps, be the HARQ number of retransmissions higher limit that sets in advance at current HARQ number of retransmissions, during promptly high re-transmission desired value, current HARQ number of retransmissions is adjusted into the HARQ number of retransmissions lower limit that sets in advance, the promptly low desired value that retransmits; Perhaps, greater than the HARQ number of retransmissions lower limit that sets in advance, promptly hang down when retransmitting desired value,, adjust described current HARQ number of retransmissions downwards according to the adjustment step-length that sets in advance at current HARQ number of retransmissions.
If be not more than default up self adaptation retransfer channel element resources congestion threshold situation following time in the Channel Elements occupancy, its mode that current HARQ number of retransmissions is adjusted can be with reference to flow process shown in Figure 2.
The 3rd particular flow sheet of the self adaptation adjustment number of retransmissions method in the embodiment of the invention has been shown among Fig. 4, ratio according to the bit rate of the power termination of the sub-district that obtains, the Channel Elements occupancy of sub-district and the user's that all with this sub-district are Serving cell actual transfer rate and institute's assignment is adjusted the HARQ number of retransmissions, comprising:
Step S401: the ratio of obtaining the bit rate of the Channel Elements occupancy of power termination, the sub-district of sub-district, user's that all with this sub-district are Serving cell actual transfer rate and institute's assignment;
Step S402: judge whether described power termination retransmits the power termination congestion threshold greater than default up self adaptation, if then carry out step S403;
Step S403: judge that whether described Channel Elements occupancy is less than default up self adaptation retransfer channel element resources relieve congestion thresholding, if then carry out step S404;
Step S404: judge that all are whether the ratio of bit rate of user's the actual transfer rate of Serving cell and institute's assignment is less than default speed ratio thresholding, if then carry out step S405 with this sub-district;
Need to prove step S402 to the deterministic process of step S404 be in no particular order, have only when all deterministic processes and all satisfy the following time of situation that is, just can carry out step S405.
Step S405: judge that whether the HARQ number of retransmissions is the low desired value that retransmits, if then carry out step S406, otherwise does not adjust current HARQ number of retransmissions;
Step S406: will hang down the re-transmission desired value and be adjusted into the high desired value that retransmits;
Illustrate: when the power termination of sub-district is the congested and CE resource sub-district is not congested, by number of retransmissions being adjusted into the high desired value that retransmits, can obtains the load gain of eating dishes without rice or wine, thereby improve the sub-district throughput.Table 1 is one group of Simulation results data, to the measurement data of 20 UE:
Table 1
From as can be seen last, current number of retransmissions be adjusted into the high CE that retransmits desired value and can increase identical effective throughput under consume, so only when sub-district CE resource is not congested, current number of retransmissions could be adjusted into high re-transmission desired value.In addition, by judging whether users all in the sub-district all satisfies: during the speed ratio thresholding of the ratio of actual speed rate and MBR＜default, just will hang down the re-transmission desired value and be adjusted into the high desired value that retransmits, and can make that the throughput of adjusting back UE can be than not lower before the adjustment.When described S402 when the Rule of judgment of step S404 all satisfies, the power termination that is the sub-district is in congestion state, the CE of described sub-district is not limited, and all users' of this sub-district service throughput is during less than default speed ratio thresholding, need the HARQ number of retransmissions will be improved, as step S402 when all Rule of judgment all satisfy to step S404, the power termination that current area is described is congested, and described sub-district CE resource abundance, and the ratio of the bit rate of the user's actual transfer rate in all sub-districts and institute's assignment is lower than default speed ratio thresholding, its ratio threshold value can be 1: (the high desired value that retransmits of 1+), be configured to the high desired value situation following time of retransmitting, the transmission rate before can not causing this user's transmission rate than configuration is low.The method of adjustment here also is not limited to aforesaid way and realizes, as in improving the HARQ number of retransmissions can with as described in the HARQ number of retransmissions be adjusted into the HARQ number of retransmissions higher limit that sets in advance, promptly high re-transmission desired value; Perhaps, according to the adjustment step-length that sets in advance, adjust upward described current HARQ number of retransmissions; Perhaps, be the HARQ number of retransmissions lower limit that sets in advance at described HARQ number of retransmissions, promptly hang down when retransmitting desired value, described HARQ number of retransmissions is adjusted into the HARQ number of retransmissions higher limit that sets in advance, promptly high re-transmission desired value; Perhaps, less than the HARQ number of retransmissions higher limit that sets in advance, during promptly high re-transmission desired value,, adjust upward described current HARQ number of retransmissions at described HARQ number of retransmissions according to the adjustment step-length that sets in advance.
Need to prove, above-mentioned flow chart 2 to the adjustment process of flow chart 4 can be finished in a sense cycle, also can sense cycle be set to the adjustment process of each flow chart, carry out self adaptation after judging respectively and adjust the HARQ number of retransmissions, in the HSUPA system, can set in advance a sense cycle on the corresponding apparatus, as 10 seconds or other cycle times the up-link wireless Internet resources to the sub-district detect, according to described sense cycle, up-link wireless Internet resources to the sub-district detected in per 10 seconds, if when satisfying the some condition in three above-mentioned flow charts, then need the HARQ number of retransmissions is adjusted, thereby the number of retransmissions that satisfies under the different conditions is provided with demand.
Accordingly, the mixed automatic retransmission time that Fig. 5 shows in the embodiment of the invention is adjusted equipment structure chart, and this equipment obtains the up-link wireless network resource status at place, sub-district, and adjusts the HARQ number of retransmissions according to the up-link wireless network resource status that obtains.This equipment is provided with acquisition module 501 and adjusting module 502, and wherein: acquisition module 501 is used to obtain the up-link wireless network resource status of sub-district; The up-link wireless network resource status that adjusting module 502 is used for obtaining according to described acquisition module 501 is adjusted the HARQ number of retransmissions.Need to prove that described up-link wireless Internet resources comprise following at least a: the power termination of sub-district, up channel unit occupancy, all are the ratio of the bit rate of user's the actual transfer rate of Serving cell and assignment with this sub-district.Accordingly, when if equipment is the up-link wireless network resource status at place, active detecting sub-district, it can also comprise: detection module 503, described detection module 503 is used for the wireless network resource situation on the sub-district is detected, and the up-link wireless network resource status that detects sent to acquisition module 501, the acquisition module 501 here also can receive the up infinite network resource situation that other equipment send.
The structural representation of the adjusting module 502 in the embodiment of the invention has been shown among Fig. 6 a to Fig. 6 c, and the adjusting module among Fig. 6 a comprises first judging unit 601 and first adjustment unit 602; Adjusting module among Fig. 6 b comprises second judging unit 603 and second adjustment unit 604; Adjusting module among Fig. 6 c comprises the 3rd judging unit 605 and the 3rd adjustment unit 606.Wherein: whether the power termination of the sub-district of the up-link wireless network resource status that first judging unit 601 is used for judging that described acquisition module 501 obtains retransmits power termination less than default up self adaptation and removes thresholding; First adjustment unit 602 is used for according to first judging unit 601 then reducing the HARQ number of retransmissions of HSUPA when the power termination of judging the described sub-district that obtains retransmits power termination releasing thresholding less than up self adaptation; Second judging unit 603 is used for judging whether the power termination of the sub-district of the described up-link wireless network resource status that obtains retransmits the power termination congestion threshold greater than up self adaptation, and whether the Channel Elements occupancy of the sub-district in the described up-link wireless network resource status that obtains is greater than default up self adaptation retransfer channel element resources congestion threshold; Second adjustment unit 604 is used for judging that at second judging unit 603 power termination of the sub-district of the described up-link wireless network resource status that obtains is not more than up self adaptation and retransmits the power termination congestion threshold, and the Channel Elements occupancy of the sub-district in the described up-link wireless network resource status that obtains then reduces the HARQ number of retransmissions of HSUPA during greater than up self adaptation retransfer channel element resources congestion threshold; The 3rd judging unit 605 is used for judging whether the power termination of the sub-district of the described up-link wireless network resource status that obtains retransmits the power termination congestion threshold greater than up self adaptation, and whether the Channel Elements occupancy of the sub-district in the described up-link wireless network resource status that obtains less than up self adaptation retransfer channel element resources congestion threshold, and in the up-link wireless network resource status all are whether the ratio of bit rate of user's the actual transfer rate of Serving cell and institute's assignment is less than default speed ratio thresholding with this sub-district; The 3rd adjustment unit 606 is used for judging that at the 3rd judging unit 605 power termination of the described sub-district that obtains retransmits the power termination congestion threshold greater than up self adaptation, and the Channel Elements occupancy of the described sub-district that obtains is less than up self adaptation retransfer channel element resources congestion threshold, and all are the ratio of bit rate of user's the actual transfer rate of Serving cell and institute's assignment during less than default speed ratio thresholding with this sub-district, then improve the HARQ number of retransmissions of HSUPA.Need to prove that the unit among Fig. 6 a to Fig. 6 c can all or part ofly be present in the same adjusting module, according to the up-link wireless network resource status HARQ number of retransmissions is adjusted.
Fig. 7 shows the mixed automatic retransmission time Adjustment System in the embodiment of the invention, this system has comprised base station 71 and radio network controller 70, this base station 71 is used for the up-link wireless network resource status at place, sub-district is detected, and the up-link wireless network resource status of described detection is sent to radio network controller 70; Described radio network controller 70 is used to obtain the up-link wireless network resource status at the place, sub-district that base station 71 sends, and adjusts the HARQ number of retransmissions according to the up-link wireless network resource status self adaptation of obtaining.
In sum, according to the up-link wireless network resource status at the place, sub-district that obtains, the HARQ number of retransmissions of adaptive adjustment HSUPA satisfies the number of retransmissions requirement under the heterogeneous networks state.Power termination in the sub-district is in not congestion state, reduce current HARQ number of retransmissions after, can not cause that CE is congested; Be in congestion state in the CE resource, and the power termination of sub-district reduces HARQ number of retransmissions value and can help to improve the CE utilance when not being in congestion state, can improve the sub-district throughput; In the higher situation of load, improve HARQ number of retransmissions value, can not make because after adjusting to high re-transmission desired value, owing to the CE inadequate resource reduces cell capacity, avoided the transmission rate before unique user adjustment uplink speed ratio is afterwards adjusted low.Consider user's differentiation, all identical users of sub-district adjust number of retransmissions together, have guaranteed user's differentiation.
Above disclosed only is a kind of preferred embodiment in the embodiment of the invention, can not limit the present invention's interest field certainly with this, and therefore the equivalent variations of doing according to claim of the present invention still belongs to the scope that the present invention is contained.
Claims (7)
1. a method of adjusting mixed automatic retransmission time is characterized in that, comprising:
Obtain the up-link wireless network resource status of sub-district, described up-link wireless Internet resources comprise the power termination of sub-district and the Channel Elements occupancy of sub-district;
Adjust current mixed automatic retransmission time according to the up-link wireless network resource status that obtains, the up-link wireless network resource status that described basis is obtained is adjusted current mixed automatic retransmission time and is comprised: retransmit the power termination congestion threshold if the power termination of the described sub-district that obtains is not more than default up self adaptation, and the Channel Elements occupancy of the described sub-district that obtains reduces described current mixed automatic retransmission time greater than default up self adaptation retransfer channel element resources congestion threshold.
2. the method for claim 1, it is characterized in that, described up-link wireless network resource status comprises that also all are the ratio of the bit rate of user's the actual transfer rate of Serving cell and assignment with this sub-district, describedly adjusts mixed automatic retransmission time according to the described up-link wireless network resource status that obtains and also comprises:
If the power termination of the described sub-district that obtains retransmits the power termination congestion threshold greater than default up self adaptation, and the Channel Elements occupancy of the described sub-district that gets access to is less than default up self adaptation retransfer channel element resources congestion threshold, all with this sub-district be the ratio of bit rate of user's the actual transfer rate of Serving cell and institute's assignment less than default speed ratio thresholding, improve described current mixed automatic retransmission time.
3. the method for claim 1 is characterized in that, the described current mixed automatic retransmission time of described reduction comprises:
Described current mixed automatic retransmission time is adjusted into the mixed automatic retransmission time lower limit that sets in advance;
Perhaps, according to the adjustment step-length that sets in advance, adjust described current mixed automatic retransmission time downwards;
Perhaps, when described current mixed automatic retransmission time is the mixed automatic retransmission time higher limit that sets in advance, described current mixed automatic retransmission time is adjusted into the mixed automatic retransmission time lower limit that sets in advance;
Perhaps, during greater than the mixed automatic retransmission time lower limit that sets in advance,, adjust described current mixed automatic retransmission time downwards at described current mixed automatic retransmission time according to the adjustment step-length that sets in advance.
4. method as claimed in claim 2 is characterized in that, the described current mixed automatic retransmission time of described raising comprises:
Described current mixed automatic retransmission time is adjusted into the mixed automatic retransmission time higher limit that sets in advance;
Perhaps, according to the adjustment step-length that sets in advance, adjust upward described current mixed automatic retransmission time;
Perhaps, when described current mixed automatic retransmission time is the mixed automatic retransmission time lower limit that sets in advance, described current mixed automatic retransmission time is adjusted into the mixed automatic retransmission time higher limit that sets in advance;
Perhaps, during less than the mixed automatic retransmission time higher limit that sets in advance,, adjust upward described current mixed automatic retransmission time at described current mixed automatic retransmission time according to the adjustment step-length that sets in advance.
5. a mixed automatic retransmission time is adjusted equipment, it is characterized in that, comprising:
Acquisition module is used to obtain the up-link wireless network resource status of sub-district, and described up-link wireless Internet resources comprise the power termination of sub-district and the Channel Elements occupancy of sub-district;
Adjusting module, the up-link wireless network resource status that is used for obtaining according to described acquisition module is adjusted current mixed automatic retransmission time; Described adjusting module comprises:
Second judging unit, whether the power termination that is used for judging the sub-district of the described up-link wireless network resource status that obtains retransmits the power termination congestion threshold greater than default up self adaptation, and whether the Channel Elements occupancy of the sub-district in the described up-link wireless network resource status that obtains is greater than default up self adaptation retransfer channel element resources congestion threshold;
Second adjustment unit, the power termination that is used in the described sub-district that obtains of second judgment unit judges is not more than up self adaptation re-transmission power termination congestion threshold, and the Channel Elements occupancy of the described sub-district that obtains reduces described current mixed automatic retransmission time during greater than up self adaptation retransfer channel element resources congestion threshold.
6. equipment as claimed in claim 5 is characterized in that, described adjusting module also comprises:
The 3rd judging unit, whether the power termination that is used for judging the sub-district of the described up-link wireless network resource status that obtains retransmits the power termination congestion threshold greater than up self adaptation, and whether the Channel Elements occupancy of the sub-district in the described up-link wireless network resource status that obtains less than up self adaptation retransfer channel element resources congestion threshold, and in the up-link wireless network resource status all are whether the ratio of bit rate of user's the actual transfer rate of Serving cell and institute's assignment is less than default speed ratio thresholding with this sub-district;
The 3rd adjustment unit, be used for retransmitting the power termination congestion threshold greater than up self adaptation in the power termination of the described sub-district that obtains of the 3rd judgment unit judges, and the Channel Elements occupancy of the described sub-district that obtains is less than up self adaptation retransfer channel element resources congestion threshold, and all are the ratio of bit rate of user's the actual transfer rate of Serving cell and institute's assignment during less than described default speed ratio thresholding with this sub-district, then improve described current mixed automatic retransmission time.
7. equipment as claimed in claim 6 is characterized in that, described equipment also comprises:
Detection module is used for the up-link wireless network resource status at place, sub-district is detected, and the up-link wireless network resource status that detects is sent to described acquisition module.
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| CN2008100281194A CN101277176B (en) | 2008-05-15 | 2008-05-15 | Method, equipment and system for adjusting mixed automatic retransmission time |
| PCT/CN2009/071771 WO2009138033A1 (en) | 2008-05-15 | 2009-05-13 | Method, device and system for adjusting the hybrid automatic repeat request times |
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| CN2008100281194A CN101277176B (en) | 2008-05-15 | 2008-05-15 | Method, equipment and system for adjusting mixed automatic retransmission time |
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| CN101277176B true CN101277176B (en) | 2011-09-14 |
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| CN101277176B (en) * | 2008-05-15 | 2011-09-14 | 华为技术有限公司 | Method, equipment and system for adjusting mixed automatic retransmission time |
| CN102045764B (en) * | 2009-10-20 | 2014-02-19 | 华为技术有限公司 | Method and device for adaptive retransmission of high speed uplink packet access |
| WO2014047929A1 (en) | 2012-09-29 | 2014-04-03 | 华为技术有限公司 | Method and related device for resetting high-speed medium access control entity |
| KR102057087B1 (en) * | 2013-07-17 | 2019-12-18 | 퀄컴 인코포레이티드 | Methods and apparatus for dynamic transmission of retransmission requests |
| CN106850125B (en) * | 2015-12-03 | 2019-11-08 | 上海无线通信研究中心 | MAC layer data packet retransmission mechanism optimization method towards Cellular Networks and WLAN combination network |
| CN105792101A (en) * | 2015-12-31 | 2016-07-20 | 深圳市金立通信设备有限公司 | Method for determining retransmission time, terminal and base station |
| CN108631949A (en) * | 2017-03-23 | 2018-10-09 | 株式会社Ntt都科摩 | Data transmission method for uplink, data receiver method, user equipment and base station |
| CN108768591A (en) * | 2018-05-28 | 2018-11-06 | 东南大学 | A method of the number of retransmissions dynamic based on the triggering of real-time packet loss information adjusts |
| CN111757512B (en) * | 2019-03-28 | 2022-09-13 | 成都鼎桥通信技术有限公司 | Uplink scheduling method and device |
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| WO2009138033A1 (en) | 2009-11-19 |
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