CN113891404A - Unidirectional data service rate optimization method based on wireless network - Google Patents

Unidirectional data service rate optimization method based on wireless network Download PDF

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CN113891404A
CN113891404A CN202111338884.8A CN202111338884A CN113891404A CN 113891404 A CN113891404 A CN 113891404A CN 202111338884 A CN202111338884 A CN 202111338884A CN 113891404 A CN113891404 A CN 113891404A
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downlink
uplink
scheduling
service
size
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雒超
朱李孝
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Hangzhou Honglingtong Information Technology Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18—Negotiating wireless communication parameters
    • H04W28/22—Negotiating communication rate
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention discloses a unidirectional data service rate optimization method based on a wireless network, which comprises the following steps: judging the type of the one-way data service of the current wireless network; when the unidirectional data service type is unidirectional data uplink service and
Figure DDA0003351642780000011
when, if
Figure DDA0003351642780000012
Then the downlink actual scheduling
Figure DDA0003351642780000013
Figure DDA0003351642780000014
Otherwise, the downlink actual scheduling
Figure DDA0003351642780000015
Number of downlink actual scheduling layers
Figure DDA0003351642780000016
When the unidirectional data service type is unidirectional data downlink service and
Figure DDA0003351642780000017
when, if
Figure DDA0003351642780000018
Then the uplink actual scheduling
Figure DDA0003351642780000019
Otherwise, the uplink actual scheduling is performed
Figure DDA00033516427800000110
Number of downlink actual scheduling layers
Figure DDA00033516427800000111
Figure DDA00033516427800000112
The invention carries out conservative scheduling on the state report in the opposite direction of the service under the scene of the unidirectional service by judging the service communication direction of the terminal user, thereby reducing the block error rate of the transmission of the state report and improving the transmission rate of user data.

Description

Unidirectional data service rate optimization method based on wireless network
Technical Field
The invention relates to the technical field of wireless communication, in particular to an optimization method for improving the unidirectional data service rate of a data service bearing type in an AM (acknowledged mode) mode.
Background
Currently, in LTE (Long Term Evolution) and NR (New Radio), after a User Equipment (UE) accesses a network, the UE can generally be divided into three types according to a data flow direction: uplink unidirectional service, downlink unidirectional service and uplink and downlink simultaneous service. Generally, for downlink services, a base station determines a modulation and coding scheme and a modulation order of downlink scheduling according to csi (channel State information) information and feedback information of downlink harq (hybrid Automatic Repeat request) reported by a terminal, and for uplink services, the base station determines a modulation and coding scheme and a modulation order of uplink data scheduling according to measurements performed on srs (sounding reference signal) and pusch (physical uplink shared channel) sent by a UE.
Generally, in order to improve the rate and reliability of system data transmission under the same bandwidth, manufacturers in the industry may dynamically adjust the Modulation and coding scheme and the number of layers of data by using amc (adaptive Modulation and coding) and MIMO (Multiple-Input Multiple-Output) methods, so as to keep a target BLER (Block Error Ratio) within a normal range (e.g., within 10%), thereby optimizing the overall performance of the system. Although the block error rate requires that the influence on the rate is not great in the case of UM service or simultaneous uplink and downlink service communication, the influence on the AM unidirectional service transmission is great. For example, when the terminal performs the unidirectional downlink service, the uplink only needs to upload a small number of status reports, and the time delay of the status reports greatly affects the data buffer size of the downlink transmission, thereby causing the reduction of the downlink data transmission rate, and especially under the condition of fast channel condition change, the time delay of the status report is increased when the status report transmission decoding of each downlink data fails, thereby affecting the downlink service rate. On the contrary, the time delay of the status report of the uplink data also affects the transmission rate of the uplink service data.
Disclosure of Invention
In view of the above, it is necessary to provide a method for optimizing a unidirectional data traffic rate based on a wireless network.
The embodiment of the invention provides a method for optimizing unidirectional data service rate based on a wireless network, which comprises the following steps:
judging the type of the one-way data service of the current wireless network; wherein the unidirectional data traffic types include: a unidirectional data uplink service and a unidirectional data downlink service;
counting the utilization rate of the RB of the uplink resource block of the latest continuous N scheduling units Slot
Figure BDA0003351642760000021
And downlink Resource Block (RB) utilization
Figure BDA0003351642760000022
Obtaining uplink scheduling MCS of current scheduling unit SlotULDownlink scheduling MCSDLAnd the number of uplink scheduling layers LayerULAnd the number of downlink scheduling layers LayerDL；
Obtaining the size BSR of the residual buffer status report of the data to be scheduled on the Slot uplink of the current scheduling unit, and recording the size BSR as
Figure BDA0003351642760000023
And obtaining the size BSR of the residual buffer status report of the data to be scheduled of the Slot downlink of the current scheduling unit, and recording the size BSR as
Figure BDA0003351642760000024
When the unidirectional data service type is unidirectional data uplink service and
Figure BDA0003351642760000025
when, if
Figure BDA0003351642760000026
Figure BDA0003351642760000027
Then the downlink actual scheduling
Figure BDA0003351642760000028
Otherwise, the downlink actual scheduling
Figure BDA0003351642760000029
Number of downlink actual scheduling layers
Figure BDA00033516427600000210
When the unidirectional data service type is unidirectional data downlink service and
Figure BDA00033516427600000211
when, if
Figure BDA00033516427600000212
Figure BDA00033516427600000213
Then the uplink actual scheduling
Figure BDA00033516427600000214
Otherwise, the uplink actual scheduling is performed
Figure BDA00033516427600000215
Number of downlink actual scheduling layers
Figure BDA00033516427600000216
Wherein, THRDLCaching a size threshold value for the downlink data; THRR_DL_RBIs a downlink resource block RB utilization rate threshold value; delta1An offset value for downlink modulation and coding strategy MCS conservative scheduling; THRULCaching a size threshold value for the uplink data; THRR_UL_RBIs the threshold value of the utilization rate of the uplink resource block RB; delta2And the offset value is used for conservative scheduling of the uplink modulation and coding strategy MCS.
Further, the determining the unidirectional data service type of the current wireless network specifically includes:
obtaining the scheduling transmission block size Tbsize and the buffer status report size BSR of the uplink continuous latest N scheduling unit slots, and respectively calculating the average value of the uplink transmission block size Tbsize
Figure BDA0003351642760000031
And the average value of the uplink buffer status report size BSR
Figure BDA0003351642760000032
Obtaining the scheduling transmission block size Tbsize and the buffer status report size BSR of the downlink continuous nearest N scheduling units Slot, and respectively calculating the average value of the downlink transmission block size Tbsize
Figure BDA0003351642760000033
And downlink buffer status report size BSRAverage value of (2)
Figure BDA0003351642760000034
When in use
Figure BDA0003351642760000035
And is
Figure BDA0003351642760000036
Figure BDA0003351642760000037
If so, the type of the unidirectional data service is unidirectional data uplink service;
when in use
Figure BDA0003351642760000038
And is
Figure BDA0003351642760000039
Figure BDA00033516427600000310
If so, the type of the unidirectional data service is unidirectional data downlink service;
wherein,
Figure BDA00033516427600000311
a first threshold value for the uplink transport block size Tbsize,
Figure BDA00033516427600000312
a second threshold value for the uplink transport block size Tbsize,
Figure BDA00033516427600000313
a first threshold value for the uplink buffer status report size BSR,
Figure BDA00033516427600000314
a second threshold value for the uplink buffer status report size BSR,
Figure BDA00033516427600000315
a first threshold value for the downlink transport block size Tbsize,
Figure BDA00033516427600000316
a second threshold value for the downlink transport block size Tbsize,
Figure BDA00033516427600000317
a first threshold value for the downlink buffer status report size BSR,
Figure BDA00033516427600000318
a second threshold value of the size BSR is reported for the downlink buffer status; and is
Figure BDA00033516427600000319
Figure BDA00033516427600000320
Further, the calculating of the average value of the uplink transport block size Tbsize
Figure BDA00033516427600000321
And the average value of the uplink buffer status report size BSR
Figure BDA00033516427600000322
The method specifically comprises the following steps:
when the current air interface time is N, the scheduling transmission block size Tbsize and the buffer status report size BSR of the uplink continuous latest scheduling unit Slot are respectively
Figure BDA00033516427600000323
And
Figure BDA00033516427600000324
wherein i is N +1, N, …, 1;
calculated as the average value respectively
Figure BDA00033516427600000325
And
Figure BDA00033516427600000326
further, the calculating of the average value of the downlink transport block size Tbsize
Figure BDA00033516427600000327
And the average value of the size BSR of the downlink buffer status report
Figure BDA00033516427600000328
The method specifically comprises the following steps:
when the current air interface time is N, the scheduling Tbsize and BSR of the downlink continuous latest N slots are respectively
Figure BDA0003351642760000041
And
Figure BDA0003351642760000042
wherein i is N +1, N, …, 1;
calculated as the average value respectively
Figure BDA0003351642760000043
And
Figure BDA0003351642760000044
further, the method for optimizing the unidirectional data service rate based on the wireless network according to the embodiment of the present invention further includes:
obtaining the uplink scheduling MCS of the current scheduling unit Slot according to the uplink and downlink adaptive modulation and coding AMC functionULAnd downlink scheduling MCSDLNumber of uplink scheduling layers LayerULAnd the number of downlink scheduling layers LayerDL。
Compared with the prior art, the method for optimizing the unidirectional data service rate based on the wireless network has the following beneficial effects that:
the present invention aims to provide a scheduling method capable of overcoming the above technical problems, so as to reduce the block error rate of status report transmission, thereby improving the transmission rate of unidirectional service data. Specifically, the invention performs conservative scheduling on the status report in the reverse direction of the service in a unidirectional service scene by judging the service communication direction of the terminal user, thereby reducing the block error rate of the status report transmission and improving the transmission rate of user data. The method has wide application prospect under various conditions of video return under a private network environment, data downloading by a user and the like, thereby improving the satisfaction degree of the wireless network application of the user.
Drawings
Fig. 1 is a flowchart illustrating a method for optimizing a unidirectional data traffic rate based on a wireless network according to an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In one embodiment, a method for optimizing a unidirectional data service rate based on a wireless network is provided, and the method specifically includes:
step 1, if the current air interface time is N, the scheduling Tbsize and BSR of the uplink continuous latest N slots are respectively
Figure BDA0003351642760000051
And
Figure BDA0003351642760000052
where i is N +1, N, …,1, and the average is calculated
Figure BDA0003351642760000053
And
Figure BDA0003351642760000054
unit: bytes.
Step 2, scheduling Tbsize and BSR of the downlink continuous latest N slots are respectively
Figure BDA0003351642760000055
And
Figure BDA0003351642760000056
where i is N +1, N, …,1, the average value is calculated
Figure BDA0003351642760000057
And
Figure BDA0003351642760000058
unit: bytes.
Step 3, judging the type of the service direction according to the calculated value, and when the type is the same as the type of the service direction
Figure BDA0003351642760000059
Figure BDA00033516427600000510
And is
Figure BDA00033516427600000511
If so, the current service is considered to be a unidirectional uplink service; when in
Figure BDA00033516427600000512
And is
Figure BDA00033516427600000513
Figure BDA00033516427600000514
And then, the current service is considered to be a unidirectional downlink service, wherein THR1 and THR2 are thresholds for the system to judge the direction of the uplink and downlink services,
Figure BDA00033516427600000515
Figure BDA00033516427600000516
step 4, counting the utilization rate of the downlink RB of the latest continuous N slots
Figure BDA00033516427600000517
And uplink RB utilization
Figure BDA00033516427600000518
Step 5, respectively calculating and obtaining the uplink dispatching MCS of the current Slot according to the uplink and downlink AMC functionsULAnd downlink scheduling MCSDLThe number of uplink scheduling layers is LayerULAnd the number of downlink scheduling layers is LayerDL。
Step 6, recording the residual BSR of the current Slot uplink data to be scheduled
Figure BDA00033516427600000519
And the residual BSR of the downlink data to be scheduled is recorded as
Figure BDA00033516427600000520
Step 7, the current service type is an uplink unidirectional service
Figure BDA00033516427600000521
When, if
Figure BDA00033516427600000522
Figure BDA00033516427600000523
Then the downlink actual scheduling
Figure BDA00033516427600000524
Otherwise, the downlink actual scheduling
Figure BDA00033516427600000525
Simultaneous scheduling
Figure BDA00033516427600000526
Step 8, the current service type is a downlink unidirectional service and
Figure BDA00033516427600000527
when is likeFruit
Figure BDA00033516427600000528
Figure BDA00033516427600000529
Then the uplink actual scheduling
Figure BDA00033516427600000530
Otherwise, the uplink actual scheduling is performed
Figure BDA00033516427600000531
Simultaneous scheduling
Figure BDA00033516427600000532
Note: THR and Δ are the threshold value and MCS offset for the system to determine the traffic direction, respectively.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (5)

1. A method for optimizing the rate of a unidirectional data service based on a wireless network is characterized by comprising the following steps:
judging the type of the one-way data service of the current wireless network; wherein the unidirectional data traffic types include: a unidirectional data uplink service and a unidirectional data downlink service;
counting the utilization rate of the RB of the uplink resource block of the latest continuous N scheduling units Slot
Figure FDA0003351642750000011
And downlink Resource Block (RB) utilization
Figure FDA0003351642750000012
Obtaining uplink scheduling MCS of current scheduling unit SlotULDownlink scheduling MCSDLAnd the number of uplink scheduling layers LayerULAnd the number of downlink scheduling layers LayerDL；
Obtaining the size BSR of the residual buffer status report of the data to be scheduled on the Slot uplink of the current scheduling unit, and recording the size BSR as
Figure FDA0003351642750000013
And obtaining the size BSR of the residual buffer status report of the data to be scheduled of the Slot downlink of the current scheduling unit, and recording the size BSR as
Figure FDA0003351642750000014
When the unidirectional data service type is unidirectional data uplink service and
Figure FDA0003351642750000015
when, if
Figure FDA0003351642750000016
THRR_DL_RBThen downlink actual scheduling
Figure FDA0003351642750000017
Otherwise, the downlink actual scheduling
Figure FDA0003351642750000018
Number of downlink actual scheduling layers
Figure FDA0003351642750000019
When the unidirectional data service type is unidirectional data downlink service and
Figure FDA00033516427500000110
when, if
Figure FDA00033516427500000111
Figure FDA00033516427500000112
Then the uplink actual scheduling
Figure FDA00033516427500000113
Otherwise, the uplink actual scheduling is performed
Figure FDA00033516427500000114
Number of downlink actual scheduling layers
Figure FDA00033516427500000115
Wherein, THRDLCaching a size threshold value for the downlink data; THRR_DL_RBIs a downlink resource block RB utilization rate threshold value; delta1An offset value for downlink modulation and coding strategy MCS conservative scheduling; THRULCaching a size threshold value for the uplink data; THRR_UL_RBIs the threshold value of the utilization rate of the uplink resource block RB; delta2And the offset value is used for conservative scheduling of the uplink modulation and coding strategy MCS.
2. The method for optimizing a unidirectional data service rate based on a wireless network according to claim 1, wherein the determining a unidirectional data service type of a current wireless network specifically comprises:
obtaining the scheduling transmission block size Tbsize and the buffer status report size BSR of the uplink continuous latest N scheduling unit slots, and respectively calculating the average value of the uplink transmission block size Tbsize
Figure FDA00033516427500000116
And the average value of the uplink buffer status report size BSR
Figure FDA00033516427500000117
Obtaining the size Tbsize and of the scheduling transmission block of the downlink continuous nearest N scheduling units SlotBuffer the BSR and respectively calculate the average value of the Tbsize
Figure FDA0003351642750000021
And the average value of the size BSR of the downlink buffer status report
Figure FDA0003351642750000022
When in use
Figure FDA0003351642750000023
Figure FDA0003351642750000024
And is
Figure FDA0003351642750000025
Figure FDA0003351642750000026
If so, the type of the unidirectional data service is unidirectional data uplink service;
when in use
Figure FDA0003351642750000027
Figure FDA0003351642750000028
And is
Figure FDA0003351642750000029
Figure FDA00033516427500000210
If so, the type of the unidirectional data service is unidirectional data downlink service;
wherein,
Figure FDA00033516427500000211
a first threshold value for the uplink transport block size Tbsize,
Figure FDA00033516427500000212
a second threshold value for the uplink transport block size Tbsize,
Figure FDA00033516427500000213
a first threshold value for the uplink buffer status report size BSR,
Figure FDA00033516427500000214
a second threshold value for the uplink buffer status report size BSR,
Figure FDA00033516427500000215
a first threshold value for the downlink transport block size Tbsize,
Figure FDA00033516427500000216
a second threshold value for the downlink transport block size Tbsize,
Figure FDA00033516427500000217
a first threshold value for the downlink buffer status report size BSR,
Figure FDA00033516427500000218
a second threshold value of the size BSR is reported for the downlink buffer status; and is
Figure FDA00033516427500000219
Figure FDA00033516427500000220
Figure FDA00033516427500000221
Figure FDA00033516427500000222
3. The method of claim 2, wherein the calculating of the average value of the uplink transport block size Tbsize is performed according to the method of claim 2
Figure FDA00033516427500000223
And the average value of the uplink buffer status report size BSR
Figure FDA00033516427500000224
The method specifically comprises the following steps:
when the current air interface time is N, the scheduling transmission block size Tbsize and the buffer status report size BSR of the uplink continuous latest scheduling unit Slot are respectively
Figure FDA00033516427500000225
And
Figure FDA00033516427500000226
wherein i is N +1, N, …, 1;
calculated as the average value respectively
Figure FDA00033516427500000227
And
Figure FDA00033516427500000228
4. the method of claim 2, wherein the calculating of the average value of the downlink transport block size Tbsize is performed according to the method of claim 2
Figure FDA00033516427500000229
And the average value of the size BSR of the downlink buffer status report
Figure FDA00033516427500000230
The method specifically comprises the following steps:
when the current air interface time is n, the downlink is continuousThe scheduling transport block size Tbsize and the buffer status report size BSR of the latest N scheduling units Slot are respectively
Figure FDA00033516427500000231
And
Figure FDA0003351642750000031
wherein i is N +1, N, …, 1;
calculated as the average value respectively
Figure FDA0003351642750000032
And
Figure FDA0003351642750000033
5. the method for unidirectional data traffic rate optimization over a wireless network of claim 1, further comprising:
obtaining the uplink scheduling MCS of the current scheduling unit Slot according to the uplink and downlink adaptive modulation and coding AMC functionULAnd downlink scheduling MCSDLNumber of uplink scheduling layers LayerULAnd the number of downlink scheduling layers LayerDL。
CN202111338884.8A 2021-11-12 2021-11-12 Unidirectional data service rate optimization method based on wireless network Pending CN113891404A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115866779A (en) * 2022-11-22 2023-03-28 三维通信股份有限公司 Control method and device for downlink scheduling of base station, storage medium and electronic device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115866779A (en) * 2022-11-22 2023-03-28 三维通信股份有限公司 Control method and device for downlink scheduling of base station, storage medium and electronic device
CN115866779B (en) * 2022-11-22 2024-05-14 三维通信股份有限公司 Control method and device for downlink scheduling of base station, storage medium and electronic device

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