CN113630785A

CN113630785A - Method and device for adaptively adjusting size of transmission window of radio link control layer

Info

Publication number: CN113630785A
Application number: CN202010383490.3A
Authority: CN
Inventors: 白耀乾
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2020-05-08
Filing date: 2020-05-08
Publication date: 2021-11-09
Anticipated expiration: 2040-05-08
Also published as: CN113630785B

Abstract

The embodiment of the invention provides a method and a device for adaptively adjusting the size of a transmission window of a radio link control layer, wherein the method comprises the following steps: receiving indication information for establishing a target radio link bearing RB; determining a transmission window size of the target RB based on a current established total RB number. The method and the device for adaptively adjusting the size of the transmission window of the radio link control layer, provided by the embodiment of the invention, can adaptively configure the reasonable size of the transmission window for the current RB based on the number of the total established RBs, thereby improving the utilization rate of a memory, establishing users as many as possible in the existing memory under the condition of not influencing the normal throughput, and increasing the capacity of the base station accessing users.

Description

Method and device for adaptively adjusting size of transmission window of radio link control layer

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for adaptively adjusting a transmission window size of a radio link control layer.

Background

The Radio Link Control (RLC) layer is a sublayer located between the Media Access Control (MAC) layer and layer 3, and its functions mainly include transmission of user data, segmentation, reassembly and concatenation, error correction and encryption, etc. The RLC entity supports three types of traffic in common, Transparent Mode (TM) traffic, Unacknowledged Mode (UM) traffic, and Acknowledged Mode (AM) traffic.

In the prior art, for UM service and AM service, the RLC layer on the base station side needs to maintain a transmission window for each Radio Bearer (RB), and is mainly used to perform reordering and repetitive detection on RLC Protocol Data Units (PDUs) and perform sequential processing. A fixed size transmission window is defined in a standard protocol, and the size of the transmission window is half of the maximum sequence number SN of the RLC PDU, for example, two SNs, one of which occupies 18 bits and one of which occupies 12 bits, are defined in a New Radio (NR) standard protocol. The RLC applies for the address of the length of the transmission window when establishing the RB, each SN number corresponds to one address, SN messages can be processed quickly and accurately when receiving the status report under the AM service, fragmented messages are received in an uplink mode, the addresses corresponding to the SNs are found quickly, and the SN messages are stored and recombined.

However, with the scheme in the prior art, in order to improve efficiency, each SN number corresponds to a static address, which is convenient for efficient search, and consumes a large amount of memory, especially under the condition of multiple users and multiple RBs, the requirement on the size of the memory is very high, and the maximum number of RBs that can be established by the base station depends on the size of the memory, so that the number of users accessed by the base station system is limited, and the performance index of the user capacity of the base station is reduced.

Disclosure of Invention

The embodiment of the invention provides a method and a device for adaptively adjusting the size of a transmission window of a radio link control layer, which are used for solving the technical problem in the prior art.

In order to solve the foregoing technical problem, in one aspect, an embodiment of the present invention provides a method for adaptively adjusting a size of a transmission window of a radio link control layer, where the method includes:

receiving indication information for establishing a target radio link bearing RB;

determining a transmission window size of the target RB based on a current established total RB number.

Further, the determining the size of the transmission window of the target RB based on the currently established total number of RBs specifically includes:

determining the total RB quantity established currently;

determining a target threshold interval in which the total RB quantity is located, wherein the target threshold interval is one of a plurality of pre-constructed threshold intervals; the total RB quantity is between the upper limit and the lower limit of the target threshold interval;

and determining the size of a transmission window of the target RB according to the target threshold interval.

Further, the determining the size of the transmission window of the target RB according to the target threshold interval specifically includes:

determining the target grade of the corresponding transmission window according to the target threshold interval; each threshold interval in the multiple threshold intervals is pre-configured with a transmission window of a corresponding grade, and the transmission windows of different grades have different sizes;

configuring a level of a transmission window of the target RB as the target level.

Further, before determining the target threshold interval in which the total RB number is located, the method further includes:

determining a plurality of preset thresholds based on the memory size configured for caching Radio Link Control (RLC) Protocol Data Units (PDUs);

constructing a plurality of threshold intervals according to the plurality of preset thresholds;

and configuring a transmission window of a corresponding grade for each threshold interval, wherein the transmission windows of different grades have different sizes.

Further, the determining a plurality of preset thresholds based on the memory size configured for caching the RLC protocol data unit PDU specifically includes:

determining the full-load minimum RB quantity according to the memory size and the configurable maximum transmission window; determining the maximum RB quantity in full load according to the memory size and the configurable minimum transmission window; the full-load minimum RB number refers to the number of RBs that can be established when the transmission windows of all RBs are configured as the configurable maximum transmission window and the memory size is completely consumed; the full-load maximum RB number refers to the number of RBs that can be established when the transmission windows of all RBs are configured as the configurable minimum transmission window and the memory size is completely consumed;

determining the number of transmission window grades according to the configurable maximum transmission window and the configurable minimum transmission window;

and determining a plurality of preset thresholds according to the full-load minimum RB quantity, the full-load maximum RB quantity and the number of the transmission window grades.

Further, the constructing a plurality of threshold intervals according to the plurality of preset thresholds specifically includes:

arranging the preset thresholds and the numerical values 0 into a sequence from small to large or from large to small;

and constructing a threshold interval according to any two adjacent elements in the sequence to obtain the plurality of threshold intervals.

Further, configuring a transmission window of a corresponding level for each threshold interval specifically includes:

sorting and numbering according to the sequence of the end points or the middle points of the threshold interval from small to large;

configuring the level of a transmission window corresponding to the nth threshold interval as N, and configuring the level of a transmission window corresponding to the (N + 1) th threshold interval as N;

wherein, N is the total grade number of the transmission windows, N +1 is the total number of the threshold intervals, N is more than 0 and less than N +1, the transmission window of the 1 st grade is a configurable maximum transmission window, the transmission window of the nth grade is a configurable minimum transmission window, the larger the grade is, the smaller the transmission window size is, the smaller the grade is, the larger the transmission window size is.

Further, when the target threshold interval is the (N + 1) th threshold interval, the determining the size of the transmission window of the target RB according to the target threshold interval specifically includes:

determining the grade of a corresponding transmission window as N according to the target threshold interval;

the level of the transmission window of the target RB is configured to be N, and at least one established RB is selected to increase the level of its transmission window by at least 1.

Further, the selecting at least one established RB to increase the level of its transmission window by at least 1 specifically includes:

selecting at least one RB from the first class of RBs; the first type RB is an RB with the grade of a transmission window being 1;

the rank of the transmission window of the selected RB is increased by at least 1.

selecting at least one RB from the second class of RBs; the second RB is an RB with poor air interface quality;

preferentially selecting at least one second type RB from the first type RB; the first type RB is an RB with the grade of a transmission window being 1; the second RB is an RB with poor air interface quality;

if the second type RB does not exist in the first type RB, at least one second type RB is selected from a third type RB; the third type of RB is an RB with the grade of a transmission window being 2;

Further, after determining the transmission window size of the target RB based on the currently established total number of RBs, the method further includes:

and when the total number of the established RBs is gradually reduced and the current number of the total RBs is reduced to be less than a preset number threshold, reducing the grade of the transmission window of all the current RBs by at least 1.

and when the number of the total established RBs is gradually reduced and the number of the total established RBs is reduced to be less than a preset number threshold, reducing the grade of a transmission window of a fourth type of RB by at least 1, wherein the grade of the transmission window of the fourth type of RB is greater than the preset grade threshold.

and when the number of the total established RBs is gradually reduced and the number of the total established RBs is reduced to be smaller than a preset number threshold, reducing the grade of a transmission window of a fifth type of RB by at least 1, wherein the fifth type of RB is an RB with poor air interface quality.

when the number of the total established RBs is gradually reduced and the number of the total established RBs is reduced to be smaller than a preset number threshold, preferentially reducing the grade of a transmission window of a fifth type RB in the fourth type RB by at least 1; the fourth type RB is an RB of which the grade of a transmission window is greater than a preset grade threshold value; and the fifth type RB is an RB with poor air interface quality.

Further, the quality of the air interface is measured by a block error rate; and the second type RB is an RB with the block error rate larger than a preset block error rate threshold value.

Further, the size of the configurable maximum transmission window is one half of the maximum value of the configurable RLC PDU sequence number SN;

the configurable minimum transmission window size is one-half of the configurable minimum RLC PDU SN.

In another aspect, an embodiment of the present invention provides an apparatus for adaptively adjusting a size of a transmission window of a radio link control layer, including:

the receiving module is used for receiving indication information for establishing a target radio link bearing RB;

a first adjusting module for determining a transmission window size of the target RB based on a currently established total number of RBs.

Further, the first adjustment module includes a first adjustment submodule, a second adjustment submodule, and a third adjustment submodule, wherein:

the first adjusting submodule is used for determining the number of the total RB which is established currently;

the second adjusting submodule is used for determining a target threshold interval in which the total RB quantity is located, wherein the target threshold interval is one of a plurality of pre-constructed threshold intervals; the total RB quantity is between the upper limit and the lower limit of the target threshold interval;

and the third adjusting submodule is used for determining the size of a transmission window of the target RB according to the target threshold interval.

Further, the third adjusting submodule includes a first adjusting unit and a second adjusting unit, wherein:

the first adjusting unit is used for determining the target level of the corresponding transmission window according to the target threshold interval; each threshold interval in the multiple threshold intervals is pre-configured with a transmission window of a corresponding grade, and the transmission windows of different grades have different sizes;

the second adjusting unit is configured to configure a level of a transmission window of the target RB as the target level.

Further, a fourth adjusting sub-module, a fifth adjusting sub-module and a sixth adjusting sub-module are included, wherein:

the fourth adjusting submodule is used for determining a plurality of preset thresholds based on the memory size configured for caching the RLC protocol data unit PDU;

the fifth adjusting submodule is used for constructing a plurality of threshold value intervals according to the plurality of preset threshold values;

the sixth adjusting submodule is configured to configure a transmission window of a corresponding level for each threshold interval, and the transmission windows of different levels have different sizes.

Further, the fourth adjusting sub-module includes a third adjusting unit, a fourth adjusting unit and a fifth adjusting unit, wherein:

the third adjusting unit is used for determining the full load minimum RB quantity according to the memory size and the configurable maximum transmission window; determining the maximum RB quantity in full load according to the memory size and the configurable minimum transmission window; the full-load minimum RB number refers to the number of RBs that can be established when the transmission windows of all RBs are configured as the configurable maximum transmission window and the memory size is completely consumed; the full-load maximum RB number refers to the number of RBs that can be established when the transmission windows of all RBs are configured as the configurable minimum transmission window and the memory size is completely consumed;

the fourth adjusting unit is configured to determine the number of transmission window classes according to the configurable maximum transmission window and the configurable minimum transmission window;

the fifth adjusting unit is configured to determine a plurality of preset thresholds according to the full-load minimum RB number, the full-load maximum RB number, and the number of transmission window levels.

Further, the fifth adjusting submodule includes a sixth adjusting unit and a seventh adjusting unit, wherein:

the sixth adjusting unit is configured to arrange the preset thresholds and the numerical values 0 into a sequence from small to large or from large to small;

the seventh adjusting unit is configured to construct a threshold interval according to any two adjacent elements in the sequence, and obtain the multiple threshold intervals.

Further, the sixth adjusting submodule includes an eighth adjusting unit and a ninth adjusting unit, wherein:

the eighth adjusting unit is used for sequencing and numbering according to the sequence of the end points or the middle points of the threshold interval from small to large;

the ninth adjusting unit is configured to configure the level of the transmission window corresponding to the nth threshold interval as N, and configure the level of the transmission window corresponding to the (N + 1) th threshold interval as N;

Further, when the target threshold interval is the N +1 th threshold interval:

the eighth adjusting unit is configured to determine, according to the target threshold interval, that the level of the corresponding transmission window is N;

the ninth adjusting unit is configured to configure the level of the transmission window of the target RB as N, and select at least one established RB to increase the level of the transmission window by at least 1.

Further, the ninth adjusting unit includes a first adjusting subunit and a second adjusting subunit, wherein:

the first adjusting subunit is used for selecting at least one RB from a first type of RB; the first type RB is an RB with the grade of a transmission window being 1;

the second adjusting subunit is configured to increase a level of a transmission window of the selected RB by at least 1.

Further, the ninth adjusting unit includes a third adjusting subunit and a fourth adjusting subunit, wherein:

the third adjusting subunit selects at least one RB from the second class of RBs; the second RB is an RB with poor air interface quality;

the fourth adjusting subunit increases the level of the transmission window of the selected RB by at least 1.

Further, the ninth adjusting unit includes a fifth adjusting subunit and a sixth adjusting subunit, wherein:

the fifth adjusting subunit is configured to preferentially select at least one RB of the second type from the RBs of the first type; the first type RB is an RB with the grade of a transmission window being 1; the second RB is an RB with poor air interface quality;

the sixth adjusting subunit is configured to increase a level of a transmission window of the selected RB by at least 1.

Further, the device also comprises a second adjusting module;

the second adjusting module is configured to reduce the level of the transmission window of all current RBs by at least 1 when the number of the established total RBs is gradually reduced and is currently reduced to be smaller than a preset number threshold.

Further, the device also comprises a third adjusting module;

the third adjusting module is configured to reduce the level of a transmission window of a fourth type RB by at least 1 when the number of the established total RBs is gradually reduced and the current number of the established total RBs is reduced to be smaller than a preset number threshold, where the fourth type RB is an RB in which the level of the transmission window is greater than a preset level threshold.

Further, the device also comprises a fourth adjusting module;

the fourth adjusting module is configured to reduce the level of the transmission window of a fifth type RB by at least 1 when the number of the established total RBs is gradually reduced and the current number of the established total RBs is reduced to be smaller than a preset number threshold, where the fifth type RB is an RB with poor air interface quality.

Further, the device also comprises a fifth adjusting module;

the fifth adjusting module is configured to preferentially reduce the level of the transmission window of a fifth RB of the fourth RB by at least 1 when the number of the established total RBs is gradually reduced and is currently reduced to be smaller than a preset number threshold; the fourth type RB is an RB of which the grade of a transmission window is greater than a preset grade threshold value; and the fifth type RB is an RB with poor air interface quality.

In another aspect, an embodiment of the present invention provides an electronic device, including: a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the method provided by the first aspect when executing the computer program.

In yet another aspect, an embodiment of the present invention provides a non-transitory computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, implements the steps of the method provided in the first aspect.

The method and the device for adaptively adjusting the size of the transmission window of the radio link control layer, provided by the embodiment of the invention, can adaptively configure the reasonable size of the transmission window for the current RB based on the number of the total established RBs, thereby improving the utilization rate of a memory, establishing users as many as possible in the existing memory under the condition of not influencing the normal throughput, and increasing the capacity of the base station accessing users.

Drawings

Fig. 1 is a schematic diagram illustrating an adaptive RLC layer transmission window size adjustment method according to an embodiment of the present invention;

fig. 2 is a logic flow diagram of RLC layer transmission window size adaptive adjustment according to an embodiment of the present invention;

fig. 3 is a schematic diagram of an apparatus for adaptively adjusting the size of a transmission window of an RLC layer according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

Fig. 1 is a schematic diagram of an RLC layer transmission window size adaptive adjustment method according to an embodiment of the present invention, and as shown in fig. 1, an RLC layer transmission window size adaptive adjustment method according to an embodiment of the present invention is provided, and an execution main body of the RLC layer transmission window size adaptive adjustment method is an RLC layer transmission window size adaptive adjustment device. The method comprises the following steps:

step S101, receiving indication information for establishing a target radio link bearer RB.

Specifically, the RLC layer transmission window size adaptive adjustment method in the embodiment of the present invention is applicable to an RLC layer, and when an RB needs to be established in a higher layer (for example, a Radio Resource Control (RRC) layer), indication information for establishing a target RB is sent to the RLC layer to indicate the RLC layer to establish the target RB.

The RLC layer receives indication information for establishing the target RB.

And step S102, determining the size of a transmission window of the target RB based on the total number of the currently established RBs.

Specifically, the RLC layer is responsible for maintaining and managing all established RBs, and after receiving indication information for establishing a target RB, queries the currently established total number of RBs, and determines the size of a transmission window configured for the target RB based on the currently established total number of RBs.

If the total number of currently established RBs is small, for example, the maximum number of bearers that can be established is 100, the total number of currently established RBs is 2, and the memory space is sufficient, the transmission window of the target RB is configured to a larger value, for example, to a maximum value, thereby ensuring larger throughput and higher reliability.

If the number of total RBs currently established is large, for example, the maximum number of bearers that can be established is 100, the number of total RBs currently established is 9, and the memory space is to be consumed, the transmission window of the target RB is configured to a smaller value, for example, to a minimum value, and on the premise of ensuring a certain throughput and reliability, more RBs are established, so that the base station can access more users.

The method for adaptively adjusting the size of the transmission window of the radio link control layer provided by the embodiment of the invention adaptively configures the reasonable size of the transmission window for the current RB based on the number of the total established RBs, improves the utilization rate of the memory, enables the current memory to establish as many users as possible under the condition of not influencing the normal throughput, and increases the capacity of the base station accessing the users.

Based on any of the above embodiments, further, the determining the size of the transmission window of the target RB based on the currently established total number of RBs specifically includes:

determining the total RB quantity established currently;

Specifically, in the embodiment of the present invention, before determining the size of the transmission window of the target RB based on the currently established total number of RBs, it is necessary to construct a plurality of threshold intervals in advance, and configure a corresponding transmission window size for each threshold interval.

The specific steps of determining the size of the transmission window of the target RB based on the currently established total number of RBs are as follows:

first, the total number of RBs currently established is determined.

The RLC layer is responsible for maintaining and managing all established RBs, and after receiving indication information for establishing a target RB, the current total number of the established RBs can be determined through inquiry.

Then, a target threshold interval in which the total number of RBs is located is determined.

The total RB number may be compared with the endpoint values of each threshold interval, and when the total RB number is greater than or equal to a lower limit (left endpoint) of a certain threshold interval and less than or equal to an upper limit (right endpoint) of the threshold interval, the threshold interval is determined as a target threshold interval in which the total RB number is located.

And finally, determining the size of a transmission window of the target RB according to the target threshold interval.

And determining the size of a transmission window corresponding to the target threshold interval by searching, and configuring the size of the transmission window as the size of the transmission window of the target RB.

For example, five threshold intervals of [0,25], (25,50], (50,75], (75,100], and (100, 130) are constructed in advance, and the transmission window sizes corresponding to the five threshold intervals are 10, 8, 7, 6, and 4, respectively, if the currently established total number of RBs is 20 when the indication information for establishing the target RB is received, the transmission window size of the target RB is configured to be 10.

Based on any of the above embodiments, further, the determining the size of the transmission window of the target RB according to the target threshold interval specifically includes:

Specifically, in the embodiment of the present invention, before determining the size of the transmission window of the target RB according to the target threshold interval, multiple threshold intervals need to be constructed in advance, and a transmission window of a corresponding level is configured for each threshold interval, where the transmission windows of different levels have different sizes.

The specific steps of determining the size of the transmission window of the target RB according to the target threshold interval are as follows:

firstly, the target grade of the corresponding transmission window is determined according to the target threshold interval.

The corresponding relation between the threshold interval and the transmission window grade can be stored locally, and after the target threshold interval is determined, the target grade of the transmission window corresponding to the target threshold interval can be determined through searching.

Then, the level of the transmission window of the target RB is configured as the target level.

For example, five threshold intervals of [0,25], (25,50], (50,75], (75,100], and (100, 130) are constructed in advance, the levels of transmission windows corresponding to the five threshold intervals are 1, 2, 3, 4, and 5, respectively, and the sizes of the transmission windows of the five levels are 10, 8, 7, 6, and 4, respectively, if the number of currently established total RBs is 20 when the indication information for establishing the target RB is received, the level of the transmission window of the target RB is configured to be 1.

Based on any one of the foregoing embodiments, further before determining the target threshold interval in which the total RB number is located, the method further includes:

Specifically, in the embodiment of the present invention, before determining the target threshold interval in which the total RB number is located, multiple threshold intervals need to be pre-constructed, and a transmission window of a corresponding level is configured for each threshold interval, which includes the following steps:

first, a plurality of preset thresholds are determined based on the memory size configured for buffering RLC PDUs.

Generally, the memory size configured for buffering the RLC PDU in the base station is a fixed value, and the size of the fixed value is related to the hardware configuration of the base station. The configuration of the transmission window for the RB requires memory resource consumption, the larger the transmission window configured for the RB is, the smaller the number of RBs that can be reached and established, and the smaller the transmission window configured for the RB is, the larger the number of RBs that can be reached and established.

For example, the maximum value of the number of RBs that can be established by the base station may be determined according to the memory size configured for buffering the RLC PDUs and the minimum transmission window configurable for the RBs in the base station, and at least one preset threshold may be determined between 0 and the maximum value, that is, multiple preset thresholds may be determined. If the maximum value is 130, it may be between 0 and 130, and further 25,50, 75 and 100 are selected as the preset threshold.

Then, a plurality of threshold intervals are constructed according to the plurality of preset thresholds.

For example, a threshold interval is determined by any two adjacent preset thresholds, and when the determined preset thresholds are 25,50, 75,100 and 130, and then the value 0 is combined, five threshold intervals can be constructed, which are [0,25], (25,50], (50,75], (75,100] and (100,130], respectively.

And finally, configuring a transmission window of a corresponding grade for each threshold interval, wherein the transmission windows of different grades have different sizes.

For example, the levels of the transmission windows corresponding to the threshold intervals [0,25], (25,50], (50,75], (75,100], and (100,130] are respectively configured to be 1, 2, 3, 4, and 5, and the sizes of the transmission windows of the five levels are respectively 10, 8, 7, 6, and 4.

Based on any of the foregoing embodiments, further, the determining a plurality of preset thresholds based on the memory size configured for caching the RLC protocol data unit PDU specifically includes:

Specifically, in the embodiment of the present invention, the specific steps of determining the multiple preset thresholds based on the memory size configured for the buffered RLC PDU are as follows:

firstly, determining full load and minimum RB quantity RB according to the memory size configured for caching RLC PDU and the maximum configurable transmission window in the base station_min(ii) a According to the memory size configured for buffering RLC PDU in the base station and the configurable maximumSmall transmission window for determining full-load maximum RB number_max。

Wherein RB_minRefers to the number of RBs that can be established when the transmission window of all RBs is configured as a configurable maximum transmission window and the memory size is fully consumed. RB (radio B)_maxRefers to the number of RBs that can be established when the transmission windows of all RBs are configured as a configurable minimum transmission window and the memory size is completely consumed.

The configurable maximum transmission window can directly adopt the maximum transmission window specified in the standard protocol, and also can configure a proper value according to the maximum transmission window specified in the standard protocol and the practical situation.

The configurable minimum transmission window can directly adopt the minimum transmission window specified in the standard protocol, and can also configure a proper value according to the minimum transmission window specified in the standard protocol and the practical situation.

And then, determining the number N of the transmission window grades according to the configurable maximum transmission window and the configurable minimum transmission window, wherein N is greater than or equal to 2 and is an integer.

For example, the NR standard specifies a configurable maximum transmission window size of 2¹⁷The configurable minimum transmission window size is 2¹¹And the size of the transmission window can only be set to 2 exponentiation power, the number of transmission window levels N can be set to 7, and the sizes of the transmission windows of the 7 levels are 2 respectively¹⁷、2¹⁶、2¹⁵、2¹⁴、2¹³、2¹²And 2¹¹。

Finally, according to RB_min、RB_maxAnd N, determining a plurality of preset thresholds.

For example, every RB may be started from 0_minSelecting a preset threshold, and selecting N preset thresholds which are 1 × RB respectively_min/2、2*RB_min/2、3*RB_min/2、…、(N-1)*RB_min/2、N*RB_min/2 and RB_max。

Based on any one of the above embodiments, further, the constructing a plurality of threshold intervals according to the plurality of preset thresholds specifically includes:

Specifically, in the embodiment of the present invention, the specific steps of constructing the multiple threshold intervals according to the multiple preset thresholds are as follows:

first, a plurality of preset thresholds and the numerical value 0 are arranged in a sequence from small to large or from large to small.

For example, the N +1 preset thresholds are 1 × RB respectively_min/2、2*RB_min/2、3*RB_min/2、…、(N-1)*RB_min/2、N*RB_min/2 and RB_maxThe N +1 preset thresholds and the value 0 are arranged into a sequence from small to large, and the sequence is as follows: 0,1 RB_min/2，2*RB_min/2，3*RB_min/2，…，(N-1)*RB_min/2，N*RB_min/2，RB_max。

Then, a threshold interval is constructed according to any two adjacent elements in the sequence, and a plurality of threshold intervals are obtained.

For example, the resulting sequence is: 0,1 RB_min/2，2*RB_min/2，3*RB_min/2，…，(N-1)*RB_min/2，N*RB_min/2，RB_max. Then the multiple threshold intervals constructed are: [0,1 × RB_min/2]、(1*RB_min/2,2*RB_min/2]、(2*RB_min/2,3*RB_min/2]、…、((N-1)*RB_min/2,N*RB_min/2]And (N RB)_min/2,RB_max]。

Based on any of the above embodiments, further, configuring a transmission window of a corresponding level for each threshold interval specifically includes:

Specifically, in the embodiment of the present invention, the specific steps of configuring a transmission window of a corresponding level for each threshold interval are as follows:

firstly, sorting and numbering are carried out according to the order from small to large of the end points or the middle points of the threshold interval.

For example, the N +1 constructed threshold intervals are: [0,1 × RB_min/2]、(1*RB_min/2,2*RB_min/2]、(2*RB_min/2,3*RB_min/2]、…、((N-1)*RB_min/2,N*RB_min/2]And (N RB)_min/2,RB_max]. The N +1 threshold interval endpoints or middle points are sorted and numbered in the order from small to large, and the 1 st threshold interval is [0,1 × RB_min/2]And the 2 nd threshold interval is (1 × RB)_min/2,2*RB_min/2]And the 3 rd threshold interval is (2 × RB)_min/2,3*RB_min/2]…, the Nth threshold interval being ((N-1) × RB_min/2,N*RB_min/2]The N +1 th threshold interval is(N*RB_min/2,RB_max]。

Then, the level of the transmission window corresponding to the nth threshold interval is configured as N, and the level of the transmission window corresponding to the (N + 1) th threshold interval is configured as N. Wherein, N is the total grade number of the transmission windows, N +1 is the total number of the threshold intervals, N is more than 0 and less than N +1, the transmission window of the 1 st grade is a configurable maximum transmission window, the transmission window of the nth grade is a configurable minimum transmission window, the larger the grade is, the smaller the transmission window size is, the smaller the grade is, the larger the transmission window size is.

For example, the 1 st threshold interval obtained is [0,1 × RB_min/2]And the 2 nd threshold interval is (1 × RB)_min/2,2*RB_min/2]And the 3 rd threshold interval is (2 × RB)_min/2,3*RB_min/2]…, the Nth threshold interval being ((N-1) × RB_min/2,N*RB_min/2]The N +1 th threshold interval is (N × RB)_min/2,RB_max]Then the threshold interval [0,1 × RB_min/2]The rank of the corresponding transmission window is configured as 1, and the threshold interval (1 × RB) is set_min/2,2*RB_min/2]The rank of the corresponding transmission window is configured as 2, and the threshold interval (2 × RB)_min/2,3*RB_min/2]The corresponding transmission window is arranged in 3, … grade, and the threshold interval ((N-1) × RB_min/2,N*RB_min/2]Configuring the rank of the corresponding transmission window as N, and setting a threshold interval (N RB)_min/2,RB_max]The rank of the corresponding transmission window is configured as N.

Based on any of the above embodiments, further, when the target threshold interval is the (N + 1) th threshold interval, the determining the size of the transmission window of the target RB according to the target threshold interval specifically includes:

Specifically, fig. 2 is a logic flow diagram of RLC layer transmission window size adaptive adjustment according to an embodiment of the present invention, as shown in fig. 2, for example, the obtained 1 st threshold interval is [0,1 × RB_min/2]And the 2 nd threshold interval is (1 × RB)_min/2,2*RB_min/2]And the 3 rd threshold interval is (2 × RB)_min/2,3*RB_min/2]…, the Nth threshold interval being ((N-1) × RB_min/2,N*RB_min/2]The N +1 th threshold interval is (N × RB)_min/2,RB_max]Threshold interval [0,1 × RB_min/2]The rank of the corresponding transmission window is configured as 1, threshold interval (1 × RB)_min/2,2*RB_min/2]The rank of the corresponding transmission window is configured as 2, threshold interval (2 × RB)_min/2,3*RB_min/2]The corresponding transmission window is configured to be 3, …, threshold interval ((N-1) × RB_min/2,N*RB_min/2]The rank of the corresponding transmission window is configured as N, threshold interval (N RB)_min/2,RB_max]The rank of the corresponding transmission window is configured as N.

If the target threshold interval is [0,1 × RB_min/2]Then, the level of the transmission window of the target RB is configured to be 1;

if the target threshold interval is (1 × RB)_min/2,2*RB_min/2]Then, the level of the transmission window of the target RB is configured to be 2;

if the target threshold interval is (2 × RB)_min/2,3*RB_min/2]Then, the level of the transmission window of the target RB is configured to be 3;

…

if the target threshold interval is ((N-1) × RB_min/2,N*RB_min/2]If yes, the level of the transmission window of the target RB is configured to be N;

if the target threshold interval is (N × RB)_min/2,RB_max]Then configure the rank of the transmission window of the target RB to N, since the number of currently established RBs is greater than N × RB_minAt/2, there may be a case where the memory is not enough, and thereforeWhile the level of the transmission window of the target RB is configured to be N, at least one established RB needs to be selected to increase the level value of the transmission window by at least 1.

Based on any of the above embodiments, further, the selecting at least one established RB to increase the level of its transmission window by at least 1 specifically includes:

Specifically, in the embodiment of the present invention, the number of currently established RBs is greater than N × RB_minAnd/2, when at least one established RB needs to be selected to increase the grade value of the transmission window by at least 1, the grade of the transmission window of the RB with the grade of 1 of the transmission window can be increased by at least 1, namely, the RB with the largest transmission window is selected to increase the grade of the transmission window by at least 1.

Specifically, in the embodiment of the present invention, the number of currently established RBs is greater than N × RB_minAnd/2, when at least one established RB needs to be selected and the grade value of the transmission window is increased by at least 1, the grade of the transmission window of the RB with poor air interface quality can be increased by at least 1.

For example, the quality of the air interface is measured by a retransmission ratio or a block error rate, and an RB with a retransmission ratio or a block error rate greater than a preset quality threshold is determined as an RB with poor quality of the air interface.

Specifically, in the embodiment of the present invention, the number of currently established RBs is greater than N × RB_minAnd/2, when at least one established RB needs to be selected and the grade value of the transmission window is increased by at least 1, the RB can be selected from two dimensions of window size and air interface quality, and the grade of the transmission window is increased by at least 1. The method comprises the following specific steps:

preferentially selecting at least one second type RB from the first type RB; the first type of RB is an RB with the grade of 1 of a transmission window; the second type of RB is an RB with poor air interface quality.

If the second type RB does not exist in the first type RB, at least one second type RB is selected from the third type RB; the third type of RB is an RB of rank 2 of the transmission window.

Based on any of the above embodiments, further, after determining the transmission window size of the target RB based on the currently established total number of RBs, the method further includes:

Specifically, since the RB establishment process is dynamic, there is RB establishment and RB deletion, in this embodiment of the present invention, after determining the size of the transmission window of the target RB based on the total number of RBs currently established, if it is detected that the total number of RBs established gradually decreases and the current number of RBs decreases to be smaller than the preset number threshold, the rank of the transmission window of all RBs currently is decreased by at least 1, that is, when the total number of RBs established decreases to be sufficient in memory, the size of the transmission window of all RBs may be appropriately increased, and even when the total number of RBs established decreases to be sufficient in memory, the size of the transmission window of all RBs may be adjusted to a configurable maximum value. The preset number threshold value can be set according to actual conditions.

Specifically, in the embodiment of the present invention, after determining the size of the transmission window of the target RB based on the currently established total number of RBs, if it is detected that the established total number of RBs gradually decreases and the current number of RBs has decreased to be smaller than the preset number threshold, the rank of the transmission window of the fourth type of RB is decreased by at least 1, where the fourth type of RB is an RB whose rank of the transmission window is greater than the preset rank threshold, that is, the rank of the transmission window of the RB whose size of the transmission window is smaller than a certain value is decreased by at least 1. The preset number threshold value can be set according to actual conditions. The preset grade threshold value can be set according to actual conditions.

Specifically, in the embodiment of the present invention, after the size of the transmission window of the target RB is determined based on the currently established total number of RBs, if it is detected that the established total number of RBs gradually decreases and the current number of RBs decreases to be smaller than a preset number threshold, the level of the transmission window of the fifth type of RB is decreased by at least 1, where the fifth type of RB is an RB with poor air interface quality, that is, the level of the transmission window of the RB with poor air interface quality is decreased by at least 1. The preset number threshold value can be set according to actual conditions.

Specifically, in the embodiment of the present invention, after determining the size of the transmission window of the target RB based on the currently established total number of RBs, if it is detected that the established total number of RBs is gradually decreased and is currently decreased to be smaller than the preset number threshold, but the current memory is not enough to increase the transmission windows of too many RBs, the level of the transmission window of a fifth RB in a fourth RB is preferentially decreased by at least 1, the fourth RB is an RB in which the level of the transmission window is greater than the preset level threshold, and the fifth RB is an RB with poor air interface quality, that is, an RB with a smaller transmission window and poor air interface quality is preferentially selected to increase the transmission window. The preset number threshold value can be set according to actual conditions. The preset grade threshold value can be set according to actual conditions.

Based on any of the above embodiments, further, the quality of the air interface is measured by a block error rate; and the second type RB is an RB with the block error rate larger than a preset block error rate threshold value.

Specifically, in the embodiment of the present invention, the quality of an air interface is measured by a block error rate; the RB with poor air interface quality is the RB with the block error rate larger than the preset block error rate threshold value. The preset block error rate threshold value can be set according to actual conditions.

Based on any of the above embodiments, further, the configurable maximum transmission window size is one half of a maximum value of a configurable RLC PDU sequence number, SN;

Specifically, in the embodiment of the invention, the size of the configurable maximum transmission window is one half of the maximum value of the configurable RLC PDU sequence number SN. The configurable minimum transmission window size is one-half of the configurable minimum RLC PDU SN.

For example, in the NR standard protocol, the maximum value of the SN of the RLC PDU can be configured to be 2¹⁸And 2¹²Then the configurable maximum transmission window size is configured to be 2¹⁷Configuring a configurable minimum transmission window size of 2¹¹。

Fig. 3 is a schematic diagram of an RLC layer transmission window size adaptive adjustment apparatus according to an embodiment of the present invention, and as shown in fig. 3, an RLC layer transmission window size adaptive adjustment apparatus according to an embodiment of the present invention includes: a receiving module 301 and a first adjusting module 302, wherein:

the receiving module 301 is configured to receive indication information for establishing a target radio link bearer RB; the first adjusting module 302 is configured to determine a transmission window size of the target RB based on a currently established total number of RBs.

Specifically, an RLC layer transmission window size adaptive adjustment apparatus is provided in an embodiment of the present invention, and is configured to execute the method in the corresponding embodiment, where specific steps of the apparatus provided in this embodiment to execute the method in the corresponding embodiment are the same as those in the corresponding embodiment, and are not described herein again.

Based on any one of the above embodiments, further, the first adjusting module includes a first adjusting sub-module, a second adjusting sub-module, and a third adjusting sub-module, wherein:

Based on any one of the above embodiments, further, the third adjusting submodule includes a first adjusting unit and a second adjusting unit, where:

Based on any one of the above embodiments, further, the method further includes a fourth adjusting sub-module, a fifth adjusting sub-module, and a sixth adjusting sub-module, wherein:

Based on any one of the above embodiments, further, the fourth adjusting sub-module includes a third adjusting unit, a fourth adjusting unit, and a fifth adjusting unit, where:

Based on any one of the above embodiments, further, the fifth adjusting submodule includes a sixth adjusting unit and a seventh adjusting unit, where:

Based on any one of the above embodiments, further, the sixth adjusting sub-module includes an eighth adjusting unit and a ninth adjusting unit, where:

Based on any of the above embodiments, further, when the target threshold interval is the N +1 th threshold interval:

Based on any one of the above embodiments, further, the ninth adjusting unit includes a first adjusting subunit and a second adjusting subunit, where:

Based on any one of the above embodiments, further, the ninth adjusting unit includes a third adjusting subunit and a fourth adjusting subunit, where:

Based on any one of the above embodiments, further, the ninth adjusting unit includes a fifth adjusting subunit and a sixth adjusting subunit, where:

Based on any one of the above embodiments, further, the system further comprises a second adjusting module;

Based on any one of the above embodiments, further, the system further comprises a third adjusting module;

Based on any one of the above embodiments, further, the system further comprises a fourth adjusting module;

Based on any one of the above embodiments, further, the system further comprises a fifth adjusting module;

Fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present invention, and as shown in fig. 4, the electronic device includes: a processor (processor)401, a communication Interface (communication Interface)402, a memory (memory)403 and a communication bus 404, wherein the processor 401, the communication Interface 402 and the memory 403 complete communication with each other through the communication bus 404. The processor 401 may invoke a computer program stored on the memory 403 and executable on the processor 401 to perform the following steps:

In addition, the logic instructions in the memory 403 may be implemented in the form of software functional units and stored in a computer readable storage medium when the software functional units are sold or used as independent products. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

Further, embodiments of the present invention provide a computer program product comprising a computer program stored on a non-transitory computer-readable storage medium, the computer program comprising program instructions which, when executed by a computer, enable the computer to perform the steps of the above-described method embodiments, for example, including:

Further, an embodiment of the present invention provides a non-transitory computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the computer program implements the steps in the above method embodiments, for example, including:

The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.

Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A method for adaptively adjusting the size of a transmission window of a radio link control layer is characterized by comprising the following steps:

2. The method of claim 1, wherein the determining the transmission window size of the target RB based on the currently established total number of RBs specifically comprises:

determining the total RB quantity established currently;

3. The method of claim 2, wherein the determining the size of the transmission window of the target RB according to the target threshold interval specifically comprises:

4. The method of claim 2, wherein before determining the target threshold interval in which the total number of RBs is, further comprising:

5. The method of claim 4, wherein the determining a plurality of preset thresholds based on the size of the memory configured for buffering RLC Protocol Data Units (PDUs) specifically comprises:

6. The method according to claim 4, wherein the constructing a plurality of threshold intervals according to the plurality of preset thresholds specifically comprises:

7. The method of claim 4, wherein the configuring a transmission window of a corresponding level for each threshold interval specifically comprises:

8. The method of claim 7, wherein when the target threshold interval is the (N + 1) th threshold interval, the determining the size of the transmission window of the target RB according to the target threshold interval specifically comprises:

9. The method of claim 8, wherein the selecting at least one established RB to increase the level of its transmission window by at least 1 comprises:

10. The method of claim 8, wherein the selecting at least one established RB to increase the level of its transmission window by at least 1 comprises:

11. The method of claim 8, wherein the selecting at least one established RB to increase the level of its transmission window by at least 1 comprises:

12. The method of any of claims 1-11, wherein after determining the transmission window size of the target RB based on the currently established total number of RBs, the method further comprises:

13. The method of any of claims 1-11, wherein after determining the transmission window size of the target RB based on the currently established total number of RBs, the method further comprises:

14. The method of any of claims 1-11, wherein after determining the transmission window size of the target RB based on the currently established total number of RBs, the method further comprises:

15. The method of any of claims 1-11, wherein after determining the transmission window size of the target RB based on the currently established total number of RBs, the method further comprises:

16. The method according to claim 10 or 11, wherein the quality of the air interface is measured by a block error rate; and the second type RB is an RB with the block error rate larger than a preset block error rate threshold value.

17. The RLC PDU transmission window size adaptive adjustment method according to claim 5 or 7, wherein the configurable maximum transmission window size is one half of the maximum value of the configurable RLC PDU sequence number SN;

18. An apparatus for adaptively adjusting a transmission window size of a radio link control layer, comprising:

19. The apparatus of claim 18, wherein the first adjusting module comprises a first adjusting sub-module, a second adjusting sub-module, and a third adjusting sub-module, and wherein:

20. The apparatus of claim 19, wherein the third adjusting sub-module comprises a first adjusting unit and a second adjusting unit, and wherein:

21. The apparatus of claim 19, further comprising a fourth adjusting sub-module, a fifth adjusting sub-module, and a sixth adjusting sub-module, wherein:

22. The apparatus of claim 21, wherein the fourth adjusting sub-module comprises a third adjusting unit, a fourth adjusting unit and a fifth adjusting unit, and wherein:

23. The apparatus of claim 21, wherein the fifth adjusting sub-module comprises a sixth adjusting unit and a seventh adjusting unit, and wherein:

24. The apparatus of claim 21, wherein the sixth adjusting sub-module comprises an eighth adjusting unit and a ninth adjusting unit, and wherein:

25. The rlc pdu size adaptive adjusting apparatus of claim 24, wherein when the target threshold interval is the (N + 1) th threshold interval:

26. The apparatus of claim 25, wherein the ninth adjusting unit comprises a first adjusting subunit and a second adjusting subunit, and wherein:

27. The apparatus of claim 25, wherein the ninth adjusting unit comprises a third adjusting subunit and a fourth adjusting subunit, and wherein:

28. The apparatus of claim 25, wherein the ninth adjusting unit comprises a fifth adjusting sub-unit and a sixth adjusting sub-unit, and wherein:

29. The rlc tx window size adaptive adjusting apparatus according to any one of claims 18-28, further comprising a second adjusting module;

30. The apparatus of any one of claims 18-28, further comprising a third adjusting module;

31. The apparatus of any one of claims 18-28, further comprising a fourth adjusting module;

32. The rlc tx window size adaptive adjusting apparatus according to any one of claims 18-28, further comprising a fifth adjusting module;

33. The apparatus according to claim 27 or 28, wherein the quality of the air interface is measured by a block error rate; and the second type RB is an RB with the block error rate larger than a preset block error rate threshold value.

34. The RLC PDU size adaptive adjusting apparatus according to claim 22 or 24, wherein the configurable maximum transmission window size is one half of the maximum configurable RLC PDU sequence number SN;

35. An electronic device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor implements the steps of the method for adaptive adjustment of the rlc transmission window size according to any one of claims 1 to 17 when executing the computer program.

36. A non-transitory computer readable storage medium, having stored thereon a computer program, wherein the computer program, when executed by a processor, implements the steps of the method for adaptive adjustment of radio link control layer transmission window size according to any of claims 1 to 17.