CN110366202A - It eats dishes without rice or wine link congestion feedback method, device and equipment, storage medium - Google Patents
It eats dishes without rice or wine link congestion feedback method, device and equipment, storage medium Download PDFInfo
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- CN110366202A CN110366202A CN201810251359.4A CN201810251359A CN110366202A CN 110366202 A CN110366202 A CN 110366202A CN 201810251359 A CN201810251359 A CN 201810251359A CN 110366202 A CN110366202 A CN 110366202A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/26—Flow control; Congestion control using explicit feedback to the source, e.g. choke packets
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/0289—Congestion control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/08—Load balancing or load distribution
- H04W28/082—Load balancing or load distribution among bearers or channels
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Abstract
The present invention discloses one kind and eats dishes without rice or wine link congestion feedback method, device and equipment, computer readable storage medium, and the method comprising the steps of: DU carries out congestion detection to downlink；If detecting downlink congestion, congested instruction information is generated；By the congested instruction information reporting to CU, so that the CU carries out link adjustment according to the congested instruction information.The present invention is in the case where CU/DU is separated, when DU sidelinks congestion, the side CU can rapidly change distributing strategy according to the congested instruction information that DU is reported or carry out link conversion, thus improve data transfer efficiency, the technical requirements such as meet the high-speed transfer of 5G and be switched fast.
Description
Technical field
It eats dishes without rice or wine link congestion feedback method, device and equipment, meter the present invention relates to field of communication technology more particularly to one kind
Calculation machine readable storage medium storing program for executing.
Background technique
In 5G NR (New Radio, new radio) technology, the base station of wireless access net side introduces CU- in 5G network
The framework of DU (Centralized Unit-Distributed Unit, centralized unit-distribution unit) separation, a base station packet
Containing a CU, one or more DU.As shown in Figure 1, the side CU includes SDAP (Service from the perspective of protocol stack
Data Adaptation Protocol, service data packet adapt to agreement) layer and PDCP layers of (Packet Data
Convergence Protocol, Packet Data Convergence Protocol), the side DU include rlc layer (Radio Link Control, wirelessly
Link control) and MAC layer (Medium Access Control, medium access control) and PHY (Physical, physics) layer.CU
Interface between DU is F1 interface.Under dual link framework, data, can be two through F1 interface to after reaching the side CU from core net
It is shunted between a DU, CU passes through flow control state report DDDS (the DL Data Delivery that the side DU is periodic or feeds back on demand
Status, DL data transfer state) to realize that the flow control to link is handled.It mainly include the current DRB (Data of DU in DDDS
Radio Bearer, Data Radio Bearer) and UE (User Equipment, user equipment/terminal) need to the side CU apply
The packet information for the F1 loss of link that data volume, the side DU detect, the side DU are eated dishes without rice or wine the packet information successfully continuously transmitted.It is logical
DDDS is crossed, the side CU is recognized that the data requirements amount of the side DU and carries out corresponding data flow distribution, can also understand that F1 chain
The data transmission scenarios on road are to carry out corresponding F1 data link switching or forwarding.
In the prior art, judge as congestion larger to adjust the scheme time delay of shunting or link conversion, it is difficult to meet 5G
High-speed transfer and the technical requirements such as be switched fast.It is therefore desirable to have a kind of method come determine CU/DU separation in the case where,
How to allow CU quickly judge DU whether congestion, thus timely adjust link processing strategy.
Summary of the invention
In view of this, the one kind that is designed to provide of the embodiment of the present invention eats dishes without rice or wine link congestion feedback method, device and to set
Standby, computer readable storage medium, to solve to judge as congestion in the prior art to adjust the scheme of shunting or link conversion
Time delay is larger, it is difficult to the problem of meeting the high-speed transfer of 5G and the technical requirements such as being switched fast.
It is as follows that the embodiment of the present invention solves technical solution used by above-mentioned technical problem:
According to an aspect of an embodiment of the present invention, the one kind provided is eated dishes without rice or wine link congestion feedback method, the method packet
Include step:
Distribution unit DU carries out congestion detection to downlink；
If detecting downlink congestion, congested instruction information is generated；
Give the congested instruction information reporting to centralized unit CU so that the CU according to the congested instruction information into
Line link adjustment.
Other side according to an embodiment of the present invention, the one kind provided are eated dishes without rice or wine link congestion feedback device, described device
Including DU and CU；
The DU, for carrying out congestion detection to downlink；If detecting downlink congestion, congested instruction is generated
Information；By the congested instruction information reporting to CU；
The CU, the congested instruction information reported for obtaining the DU；Link is carried out according to the congested instruction information
Adjustment.
Other side according to an embodiment of the present invention, the one kind provided are eated dishes without rice or wine link congestion feedback device, the equipment
It include: memory, processor and to be stored in the link congestion of eating dishes without rice or wine that can be run on the memory and on the processor anti-
Program is presented, the link congestion feedback process of eating dishes without rice or wine realizes above-mentioned link congestion feedback side of eating dishes without rice or wine when being executed by the processor
The step of method.
Other side according to an embodiment of the present invention, a kind of computer readable storage medium provided, the computer
Link congestion feedback process of eating dishes without rice or wine is stored on readable storage medium storing program for executing, the link congestion feedback process of eating dishes without rice or wine is executed by processor
Shi Shixian it is above-mentioned eat dishes without rice or wine link congestion feedback method the step of.
One kind of the embodiment of the present invention is eated dishes without rice or wine link congestion feedback method, device and equipment, computer readable storage medium,
In the case where CU/DU separation, when DU sidelinks congestion, the side CU can rapidly change according to the congested instruction information that DU is reported
Distributing strategy carries out link conversion, thus improve data transfer efficiency, the technologies such as meets the high-speed transfer of 5G and be switched fast
It is required that.
Detailed description of the invention
Fig. 1 is gNB internal user face protocol stack structure schematic diagram；
Fig. 2 is the structural schematic diagram that data shunt between two DU under the same CU；
Fig. 3 is the data structural schematic diagram that duplication is transmitted between two DU under the same CU；
The structural schematic diagram of Fig. 4 NR-NR dual link between different CU；
The structural schematic diagram of Fig. 5 LTE-NR dual link between different CU；
Fig. 6 is the link congestion feedback method flow diagram of eating dishes without rice or wine of first embodiment of the invention；
Fig. 7 is the link congestion feedback device structural schematic diagram of eating dishes without rice or wine of second embodiment of the invention；
Fig. 8 shunts congestion for data under the same CU of the embodiment of the present invention between two DU and handles sequential organization schematic diagram；
For data under the same CU of the embodiment of the present invention, the duplication between two DU transmits congestion processing timing to Fig. 9
Structural schematic diagram；
Figure 10 NR-NR dual link congestion between the different CU of the embodiment of the present invention handles sequential organization schematic diagram；
Figure 11 LTE-NR dual link congestion between the different CU of the embodiment of the present invention handles sequential organization schematic diagram；
Figure 12 is the link congestion feedback device structural schematic diagram of eating dishes without rice or wine of third embodiment of the invention.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
In order to be clearer and more clear technical problems, technical solutions and advantages to be solved, tie below
Drawings and examples are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only
To explain the present invention, it is not intended to limit the present invention.
First embodiment
Before illustrating the present embodiment, below to existing solution and there are the problem of be described in detail:
As shown in Fig. 2, CU passes through flow control after data reach the side CU for the scene that data under the same CU shunt between two DU
Algorithm decision simultaneously shunts data between two DU in certain proportion, and UE receives the downlink data of two DU respectively and converged
Always.
As shown in figure 3, for the scene that duplication (duplication) is transmitted between two DU of data under the same CU, data are arrived
Duplication transmission is carried out in the PDCP layer of CU after up to the side CU, that is, copies identical data and is sent to two DU simultaneously, UE is same
When receive identical data from two DU and carry out duplicate packages reception processing.
As shown in figure 4, the NR-NR dual link scene between CU, after data reach master base station, the side master base station CU is calculated by flow control
Method decision simultaneously makes data pass through Xn interface in certain proportion to shunt between two base stations, and UE receives the downlink of two base stations respectively
Data are simultaneously summarized.
As shown in figure 5, LTE-NR (4G5G) the dual link scene between CU, after data reach master base station, the side master base station CU is logical
It crosses flow control algorithm decision and data is made to pass through Xn interface in certain proportion and shunted between two base stations, UE receives two bases respectively
The downlink data stood simultaneously is summarized.
In application scenarios listed above, the side CU can recognize the transmission feelings that DU eats dishes without rice or wine by DDDS to a certain extent
Condition, then by flow control algorithm judge DU whether congestion, so as to decide whether to change corresponding distributing strategy or carry out link turn
It changes.But it is larger to adjust the scheme time delay of shunting or link conversion to use this kind of mechanism to judge as congestion, it is difficult to meet 5G's
High-speed transfer and the technical requirements such as it is switched fast.
Based on existing solution there are the problem of, eat dishes without rice or wine link as shown in fig. 6, first embodiment of the invention provides one kind
Congestion feedback method, the method includes the steps:
S11, DU carry out congestion detection to downlink.
In the present embodiment, the DU is based on following information and carries out congestion detection to downlink:
CQI (Channel Quality Indicator, channel quality indicator) measurement report, SRS that terminal reports
(Sounding Reference Signal, detection reference signal) measurement, down buffer storage data transmission delay, RLC retransmit secondary
In number, the measurement of HARQ (Hybrid Automatic Repeat reQuest, hybrid automatic repeat-request) number of retransmissions at least
It is a kind of.
If S12, detecting downlink congestion, congested instruction information is generated.
In the present embodiment, if described detect downlink congestion, generate congested instruction information comprising steps of
If detecting downlink congestion, congestion SN (Sequence Number, sequence number) is calculated and congestion SN
As congested instruction information or will carry grade data applications be set to zero and be set to zero carrying grade data applications as
Congested instruction information.It should be noted that in order to which CU can obtain the congested instruction information reported and according to the congested instruction
Information carries out link adjustment, carrying grade data applications repeatedly can be set to zero, carrying grade data applications are set to zero time
This is not restricted for number.
In the present embodiment, the congestion SN is calculated based on following information:
The data buffer storage situation of DU, the state report information of user terminal feedback, link condition of eating dishes without rice or wine, MAC HARQ letter
At least one of breath, ARQ (Automatic Repeat reQuest, automatic repeat request) information of RLC.
In the present embodiment, the calculating congestion sequence number comprising steps of
The sequence number for the maximum data packet that the DU can currently be handled is calculated, and using the sequence number of the data packet as congestion
Sequence number.
S13, by the congested instruction information reporting to CU so that the CU carries out chain according to the congested instruction information
Road adjustment.
In the present embodiment, the congested instruction information reporting is obtained the congestion that DU is reported to CU, CU by DDDS by DU
After indicating information, link adjustment is carried out according to the congested instruction information.
In order to preferably illustrate the present embodiment, carried out below to link congestion feedback is eated dishes without rice or wine in the application scenarios of Fig. 2-Fig. 5
Illustrate:
As shown in Fig. 2, data shunt congestion processing between two DU under the same CU, data are existed in CU by two F1 interfaces
Two stand in shunt between DU, terminal receives the downlink data shunted by two DU and goes forward side by side the processing of rearrangement sequence.
When DU1 detects DU1 downlink congestion by link detecting, the maximum data packet that current DU1 can be handled is calculated
Information, and using the SN of the data packet as congestion SN；Congestion SN is carried in DDDS, and DU1 is reported to CU by F1 interface
Congestion.Or carrying grade data applications are set to zero in DDDS by DU1, and carrying grade data applications are carried in DDDS and are set to
Zero information, and DU1 congestion is reported to CU by F1 interface.
CU learns side DU1 congestion, and pause continues to send downlink data to the DU1；Meanwhile data packet later being passed through another
Side DU2 is sent.UE receives data by DU2.
As shown in figure 3, data duplication between two DU transmits congestion processing under the same CU, data pass through in CU
Duplication is transmitted two F1 interfaces between DU in two stations, and terminal receives identical downlink data by two DU and goes forward side by side
The processing of row duplicate packages.
When DU1 detects DU1 downlink congestion by link detecting, the maximum data packet that current DU1 can be handled is calculated
Information, and using the SN of the data packet as congestion SN；Congestion SN is carried in DDDS, and DU1 is reported to CU by F1 interface
Congestion.Or carrying grade data applications are set to zero in DDDS by DU1, and carrying grade data applications are carried in DDDS and are set to
Zero information, and DU1 congestion is reported to CU by F1 interface.
CU learns side DU1 congestion, closes the duplication function of the side DU1 and suspends continuation to DU1 transmission downlink
Duplication data；Downlink data is continued through DU2 and sent by the side CU.UE receives data by DU2.
As shown in figure 4, NR-NR dual link congestion is handled between difference CU, data are in main CU1 by Xn interface in two NR bases
DU is shunted between station, and terminal receives the downlink data shunted from two base stations NR by dual link and goes forward side by side the processing of rearrangement sequence.
When auxiliary DU2 detects DU2 downlink congestion by link detecting, the maximum data that current DU2 can be handled is calculated
The information of packet, and using the SN of the data packet as congestion SN；Congestion SN is carried in DDDS, and through Xn interface on main CU1
Report DU2 congestion.Or carrying grade data applications are set to zero in DDDS by DU2, and carrying grade data application is carried in DDDS
Amount is set to zero information, and reports DU2 congestion to main CU1 by Xn interface.
Auxiliary DU2 congestion is learnt in the main side CU1, and pause continues to send downlink data to the auxiliary DU2；Meanwhile by data later
Packet is sent by the main DU1 in the other side.UE receives data by main DU1.
As shown in figure 5, LTE-NR dual link congestion is handled between difference CU, data are in main CU1 by Xn interface in LTE base station
It is shunted between the station of the base station NR, terminal receives the downlink data shunted and progress from LTE base station and the base station NR respectively by dual link
It reorders processing.
When auxiliary LTE base station detects downlink congestion by link detecting, calculating auxiliary LTE base station can currently be handled most
The information of big data packet, and using the SN of the data packet as congestion SN；Congestion SN is carried in DDDS, and passes through Xn interface to master
CU1 reports auxiliary LTE base station congestion.Or carrying grade data applications are set to zero in DDDS by auxiliary LTE base station, are taken in DDDS
It is set to zero information with carrying grade data applications, and auxiliary LTE base station congestion is reported to main CU1 by Xn interface.
Auxiliary LTE base station congestion is learnt in the main side CU1, and pause continues to send downlink data to the auxiliary LTE base station；Meanwhile by it
Data packet afterwards is sent by the main DU1 in the other side.UE receives data by main DU1.
The link congestion feedback method of eating dishes without rice or wine of the embodiment of the present invention, in the case where CU/DU separation, when DU sidelinks congestion
When, the side CU can rapidly change distributing strategy according to the congested instruction information that DU is reported or carry out link conversion, to improve number
According to efficiency of transmission, the technical requirements such as meet the high-speed transfer of 5G and be switched fast.
Second embodiment
It eats dishes without rice or wine link congestion feedback device as shown in fig. 7, second embodiment of the invention provides one kind, described device includes
DU21 and CU22；
The DU21, for carrying out congestion detection to downlink；If detecting downlink congestion, generates congestion and refer to
Show information；By the congested instruction information reporting to CU22.
In the present embodiment, the DU21 is based on following information and carries out congestion detection to downlink:
CQI measurement report that terminal reports, SRS measurement, down buffer storage data transmission delay, RLC number of retransmissions, HARQ weight
Pass at least one of number measurement.
In the present embodiment, the DU21 calculates congestion SN and this is gathered around if being also used to detect downlink congestion
Plug SN is set to zero and the carrying grade data applications for being set to zero as congested instruction information or by carrying grade data applications
As congested instruction information.
In the present embodiment, the DU21 is based on following information and calculates the congestion SN:
The data buffer storage situation of DU, the state report information of user terminal feedback, link condition of eating dishes without rice or wine, MAC HARQ letter
At least one of breath, ARQ information of RLC.
In the present embodiment, the DU21 is also used to calculate the sequence for the maximum data packet that the DU21 can currently be handled
Number, and using the sequence number of the data packet as congestion sequence number.
The CU22, the congested instruction information reported for obtaining the DU21；It is carried out according to the congested instruction information
Link adjustment.
In the present embodiment, DU21 is obtained the congested instruction information reporting on DU21 to CU22, CU22 by DDDS
After the congested instruction information of report, link adjustment is carried out according to the congested instruction information.
In order to preferably illustrate the present embodiment, below in conjunction with Fig. 8-Figure 11 to link congestion feedback of eating dishes without rice or wine in different application field
The processing timing of scape is illustrated:
As shown in figure 8, data shunt congestion processing between two DU under the same CU, data are existed in CU by two F1 interfaces
Two stand in shunt between DU, terminal receives the downlink data shunted by two DU and goes forward side by side the processing of rearrangement sequence.
When DU1 detects DU1 downlink congestion by link detecting, the maximum data packet that current DU1 can be handled is calculated
Information, and using the SN of the data packet as congestion SN；Congestion SN is carried in DDDS, and DU1 is reported to CU by F1 interface
Congestion.Or carrying grade data applications are set to zero in DDDS by DU1, and carrying grade data applications are carried in DDDS and are set to
Zero information, and DU1 congestion is reported to CU by F1 interface.
CU learns side DU1 congestion, and pause continues to send downlink data to the DU1；Meanwhile data packet later being passed through another
Side DU2 is sent.UE receives data by DU2.
As shown in figure 9, data duplication between two DU transmits congestion processing under the same CU, data pass through in CU
Duplication is transmitted two F1 interfaces between DU in two stations, and terminal receives identical downlink data by two DU and goes forward side by side
The processing of row duplicate packages.
When DU1 detects DU1 downlink congestion by link detecting, the maximum data packet that current DU1 can be handled is calculated
Information, and using the SN of the data packet as congestion SN；Congestion SN is carried in DDDS, and DU1 is reported to CU by F1 interface
Congestion.Or carrying grade data applications are set to zero in DDDS by DU1, and carrying grade data applications are carried in DDDS and are set to
Zero information, and DU1 congestion is reported to CU by F1 interface.
CU learns side DU1 congestion, closes the duplication function of the side DU1 and suspends continuation to DU1 transmission downlink
Duplication data；Downlink data is continued through DU2 and sent by the side CU.UE receives data by DU2.
As shown in Figure 10, NR-NR dual link congestion is handled between different CU, and data are in main CU1 by Xn interface in two NR
DU is shunted between the station of base station, and terminal receives the downlink data shunted from two base stations NR by dual link and goes forward side by side the processing of rearrangement sequence.
When auxiliary DU2 detects DU2 downlink congestion by link detecting, the maximum data that current DU2 can be handled is calculated
The information of packet, and using the SN of the data packet as congestion SN；Congestion SN is carried in DDDS, and through Xn interface on main CU1
Report DU2 congestion.Or carrying grade data applications are set to zero in DDDS by DU2, and carrying grade data application is carried in DDDS
Amount is set to zero information, and reports DU2 congestion to main CU1 by Xn interface.
Auxiliary DU2 congestion is learnt in the main side CU1, and pause continues to send downlink data to the auxiliary DU2；Meanwhile by data later
Packet is sent by the main DU1 in the other side.UE receives data by main DU1.
As shown in figure 11, LTE-NR dual link congestion is handled between different CU, and data are in main CU1 by Xn interface in LTE base
It stands and is shunted between the station of the base station NR, terminal receives the downlink data shunted from LTE base station and the base station NR respectively by dual link and goes forward side by side
The processing of rearrangement sequence.
When auxiliary LTE base station detects downlink congestion by link detecting, calculating auxiliary LTE base station can currently be handled most
The information of big data packet, and using the SN of the data packet as congestion SN；Congestion SN is carried in DDDS, and passes through Xn interface to master
CU1 reports auxiliary LTE base station congestion.Or carrying grade data applications are set to zero in DDDS by auxiliary LTE base station, are taken in DDDS
It is set to zero information with carrying grade data applications, and auxiliary LTE base station congestion is reported to main CU1 by Xn interface.
Auxiliary LTE base station congestion is learnt in the main side CU1, and pause continues to send downlink data to the auxiliary LTE base station；Meanwhile by it
Data packet afterwards is sent by the main DU1 in the other side.UE receives data by main DU1.
The link congestion feedback device of eating dishes without rice or wine of the embodiment of the present invention, in the case where CU/DU separation, when DU sidelinks congestion
When, the side CU can rapidly change distributing strategy according to the congested instruction information that DU is reported or carry out link conversion, to improve number
According to efficiency of transmission, the technical requirements such as meet the high-speed transfer of 5G and be switched fast.
3rd embodiment
As shown in figure 12, third embodiment of the invention provides one kind and eats dishes without rice or wine link congestion feedback device, and the equipment includes:
Memory 31, processor 32 and it is stored in the link congestion of eating dishes without rice or wine that can be run on the memory 31 and on the processor 32
Feedback process is eated dishes without rice or wine when the link congestion feedback process of eating dishes without rice or wine is executed by the processor 32 for realizing as described below
The step of link congestion feedback method:
DU carries out congestion detection to downlink；
If detecting downlink congestion, congested instruction information is generated；
By the congested instruction information reporting to CU, so that the CU carries out link tune according to the congested instruction information
It is whole.
When the link congestion feedback process of eating dishes without rice or wine is executed by the processor 32, it is also used to realize as described below eat dishes without rice or wine
The step of link congestion feedback method:
The DU is based on following information and carries out congestion detection to downlink:
CQI measurement report that terminal reports, SRS measurement, down buffer storage data transmission delay, RLC number of retransmissions, HARQ weight
Pass at least one of number measurement.
When the link congestion feedback process of eating dishes without rice or wine is executed by the processor 32, it is also used to realize as described below eat dishes without rice or wine
The step of link congestion feedback method:
If detecting downlink congestion, calculates congestion sequence number and believe using the congestion sequence number as congested instruction
It breath or grade data applications will be carried is set to zero and being set to zero carrying grade data applications as congested instruction information.
When the link congestion feedback process of eating dishes without rice or wine is executed by the processor 32, it is also used to realize as described below eat dishes without rice or wine
The step of link congestion feedback method:
The congestion sequence number is calculated based on following information:
The data buffer storage situation of DU, the state report information of user terminal feedback, link condition of eating dishes without rice or wine, MAC HARQ letter
At least one of breath, ARQ information of RLC.
When the link congestion feedback process of eating dishes without rice or wine is executed by the processor 32, it is also used to realize as described below eat dishes without rice or wine
The step of link congestion feedback method:
The sequence number for the maximum data packet that the DU can currently be handled is calculated, and using the sequence number of the data packet as congestion
Sequence number.
The link congestion feedback device of eating dishes without rice or wine of the embodiment of the present invention, in the case where CU/DU separation, when DU sidelinks congestion
When, the side CU can rapidly change distributing strategy according to the congested instruction information that DU is reported or carry out link conversion, to improve number
According to efficiency of transmission, the technical requirements such as meet the high-speed transfer of 5G and be switched fast.
Fourth embodiment
Fourth embodiment of the invention provides a kind of computer readable storage medium, deposits on the computer readable storage medium
Link congestion feedback process of eating dishes without rice or wine is contained, it is real for realizing first when the link congestion feedback process of eating dishes without rice or wine is executed by processor
Apply the step of link congestion feedback method is eated dishes without rice or wine described in example.
The computer readable storage medium of the embodiment of the present invention, in the case where CU/DU separation, when DU sidelinks congestion
When, the side CU can rapidly change distributing strategy according to the congested instruction information that DU is reported or carry out link conversion, to improve number
According to efficiency of transmission, the technical requirements such as meet the high-speed transfer of 5G and be switched fast.
It should be noted that above-mentioned apparatus embodiment and embodiment of the method belong to same design, specific implementation process is detailed
See embodiment of the method, and the technical characteristic in embodiment of the method is corresponding applicable in Installation practice, which is not described herein again.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can be realized by means of software and necessary general hardware platform, naturally it is also possible to be realized by hardware, but very much
In the case of the former be more preferably embodiment.Based on this understanding, technical solution of the present invention is substantially in other words to existing
The part that technology contributes can be embodied in the form of software products, which is stored in a storage
In medium (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that a terminal device (can be mobile phone, calculate
Machine, server, air conditioner or network equipment etc.) execute method described in each embodiment of the present invention.
Preferred embodiments of the present invention have been described above with reference to the accompanying drawings, not thereby limiting the scope of the invention.This
Without departing from the scope and spirit of the invention, there are many variations to implement the present invention by field technical staff, for example as one
The feature of a embodiment can be used for another embodiment and obtain another embodiment.It is all to use institute within technical concept of the invention
Any modifications, equivalent replacements, and improvements of work, should all be within interest field of the invention.
Claims (12)
- The link congestion feedback method 1. one kind is eated dishes without rice or wine, which is characterized in that the method includes the steps:Distribution unit DU carries out congestion detection to downlink；If detecting downlink congestion, congested instruction information is generated；The congested instruction information reporting is given to centralized unit CU, so that the CU carries out chain according to the congested instruction information Road adjustment.
- 2. the method according to claim 1, wherein the DU, which is based on following information, carries out congestion to downlink Detection:Channel quality indicator CQI measurement report that terminal reports, detection reference signal SRS measurement, the transmission of down buffer storage data At least one of time delay, wireless spread-spectrum technology RLC number of retransmissions, the measurement of hybrid automatic repeat-request HARQ number of retransmissions.
- 3. generate congestion the method according to claim 1, wherein if described detect downlink congestion Indicate information comprising steps ofIf detecting downlink congestion, calculate congestion sequence number and using the congestion sequence number as congested instruction information or Person will carry grade data applications and be set to zero and being set to zero carrying grade data applications as congested instruction information.
- 4. according to the method described in claim 3, it is characterized in that, calculating the congestion sequence number based on following information:Data buffer storage situation, state report information, the link condition of eating dishes without rice or wine, medium access control MAC of user terminal feedback of DU HARQ information, at least one of the automatic repeat request ARQ information of RLC.
- 5. according to the method described in claim 3, it is characterized in that, the calculating congestion sequence number comprising steps ofThe sequence number for the maximum data packet that the DU can currently be handled is calculated, and using the sequence number of the data packet as congestion sequence Number.
- The link congestion feedback device 6. one kind is eated dishes without rice or wine, which is characterized in that described device includes DU and CU；The DU, for carrying out congestion detection to downlink；If detecting downlink congestion, congested instruction letter is generated Breath；Give the congested instruction information reporting to the CU；The CU, the congested instruction information reported for obtaining the DU；Link adjustment is carried out according to the congested instruction information.
- 7. device according to claim 6, which is characterized in that the DU is based on following information and carries out congestion to downlink Detection:Channel quality indicator CQI measurement report that terminal reports, detection reference signal SRS measurement, the transmission of down buffer storage data At least one of time delay, wireless spread-spectrum technology RLC number of retransmissions, the measurement of hybrid automatic repeat-request HARQ number of retransmissions.
- 8. device according to claim 6, which is characterized in that the DU, if being also used to detect downlink congestion, It calculates congestion sequence number and is set to zero simultaneously using the congestion sequence number as congested instruction information or by carrying grade data applications Using being set to zero carrying grade data applications as congested instruction information.
- 9. device according to claim 8, which is characterized in that the DU is based on following information and calculates the congestion sequence Number:Data buffer storage situation, state report information, the link condition of eating dishes without rice or wine, medium access control MAC of user terminal feedback of DU HARQ information, at least one of the automatic repeat request ARQ information of RLC.
- 10. device according to claim 8, which is characterized in that the DU is also used to calculate what the DU can currently be handled The sequence number of maximum data packet, and using the sequence number of the data packet as congestion sequence number.
- The link congestion feedback device 11. one kind is eated dishes without rice or wine, which is characterized in that the equipment includes: memory, processor and is stored in On the memory and the link congestion feedback process of eating dishes without rice or wine that can run on the processor, the link congestion feedback of eating dishes without rice or wine Realizing the link congestion feedback method of eating dishes without rice or wine as described in any one of claims 1 to 5 when program is executed by the processor Step.
- 12. a kind of computer readable storage medium, which is characterized in that be stored with chain of eating dishes without rice or wine on the computer readable storage medium Road congestion feedback program is realized when the link congestion feedback process of eating dishes without rice or wine is executed by processor as any in claim 1 to 5 Described in eat dishes without rice or wine link congestion feedback method the step of.
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| CN201810251359.4A CN110366202B (en) | 2018-03-26 | 2018-03-26 | Air interface link congestion feedback method, device and equipment and storage medium |
| PCT/CN2019/079506 WO2019184867A1 (en) | 2018-03-26 | 2019-03-25 | Air interface link congestion feedback method, apparatus and device, and storage medium |
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| WO2019184867A1 (en) | 2019-10-03 |
| CN110366202B (en) | 2022-07-26 |
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