CN113630785B

CN113630785B - Adaptive adjustment method and device for size of transmission window of radio link control layer

Info

Publication number: CN113630785B
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: 2024-04-05
Anticipated expiration: 2040-05-08
Also published as: CN113630785A

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 bearer (RB); and determining the transmission window size of the target RB based on the total RB number which is currently established. According to the self-adaptive adjustment method and device for the transmission window size of the radio link control layer, the reasonable transmission window size is configured for the current RBs in a self-adaptive mode based on the total number of the current RBs, the utilization rate of a memory is improved, the existing memory is built with as many users as possible under the condition that normal throughput is not affected, and the capacity of a base station access user is increased.

Description

Adaptive adjustment method and device for 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 (Radio Link Control, RLC) layer is a sub-layer located between the medium access control (Media Access Control, MAC) layer and layer 3 and functions mainly for transmission of user data, segmentation, reassembly and concatenation, error correction and ciphering, etc. The RLC entity supports three types of traffic in total, transparent Mode (TM) traffic, unacknowledged Mode (Unacknowledged Mode, UM) traffic, and acknowledged Mode (Acknowledged Mode, AM) traffic.

In the prior art, for UM service and AM service, the base station RLC layer needs to maintain a transmission window for each Radio Bearer (RB), mainly for reordering and repeatedly detecting RLC protocol data units (Ptotocol Data Unit, PDUs), and processing them in sequence. A fixed size transmission window is specified in the standard protocol, the size of the transmission window is half of the maximum sequence number SN of the RLC PDU, for example, two SNs are specified in the New Radio, NR, standard protocol, one occupying 18 bits and one occupying 12 bits. The RLC applies for the address of the transmission window length when establishing the RB, each SN number corresponds to one address, the message of the SN can be rapidly and accurately processed when receiving the status report under the AM service, the uplink receives the fragmented message, rapidly finds the address corresponding to the SN, and stores and reorganizes the address.

However, in order to improve efficiency, each SN number corresponds to a static address, so that efficient searching is facilitated, and a large amount of memory is consumed, especially in the case of multiple users and multiple RBs, the requirement on the size of the memory is very high, 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 accessing 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 problems in the prior art.

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

receiving indication information for establishing a target radio link bearer (RB);

and determining the transmission window size of the target RB based on the total RB number which is currently established.

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

determining the total RB number which is currently established;

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

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

Further, the determining the transmission window size 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 plurality of threshold intervals is pre-configured with a transmission window of a corresponding level, and the transmission windows of different levels are different in size;

And configuring the grade of the transmission window of the target RB as the target grade.

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

determining a plurality of preset thresholds based on a memory size configured for buffering 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 level for each threshold interval, wherein the transmission windows of different levels are different in size.

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

determining the number of full-load minimum RBs according to the memory size and the configurable maximum transmission window; determining the maximum number of full-load RBs according to the memory size and the configurable minimum transmission window; the full-load minimum RB number refers to an RB number that can be established when 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 an RB number that can be established when 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 levels according to the configurable maximum transmission window and the configurable minimum transmission window;

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

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 a plurality of threshold intervals.

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

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

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

n is the total number of the grades of the transmission windows, N+1 is the total number of the threshold intervals, 0< N < N+1, the transmission window of the 1 st grade is the configurable maximum transmission window, the transmission window of the N th grade is the configurable minimum transmission window, the larger the grade is, the smaller the size of the transmission window is, and the larger the size of the transmission window is.

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

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

and configuring the level of the transmission window of the target RB as N, and selecting at least one established RB to increase the level of the transmission window by at least 1.

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

selecting at least one RB from the first type of RBs; the first type of RBs are RBs with the level of a transmission window of 1;

the level 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 type of RBs are RBs with poor air interface quality;

preferentially selecting at least one second class RB from the first class RBs; the first type of RBs are RBs with the level of a transmission window of 1; the second type of RBs are RBs with poor air interface quality;

If the second type of RBs do not exist in the first type of RBs, at least one second type of RBs is selected from the third type of RBs; the third class of RBs are the RBs with the level of 2 of the transmission window;

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

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

and when the number of the established total RBs is gradually reduced and the current number of the RBs is reduced to be smaller than a preset number threshold, reducing the level of a transmission window of a fourth class of RBs by at least 1, wherein the level of the transmission window of the fourth class of RBs is larger than the preset level threshold.

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

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

Further, the air interface quality is measured by a block error rate; the second type of RBs are RBs with the block error rate larger than a preset block error rate threshold.

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

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

a receiving module, configured to receive indication information for establishing a target radio link bearer RB;

and a first adjustment module, configured to determine a transmission window size of the target RB based on a total RB number currently established.

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

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

the second adjustment submodule is used for determining a target threshold interval in which the total RB number is located, and the target threshold interval is one of a plurality of threshold intervals constructed in advance; the total RB number is between the upper limit and the lower limit of the target threshold interval;

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

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

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

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

Further, the system further comprises a fourth adjustment sub-module, a fifth adjustment sub-module and a sixth adjustment sub-module, wherein:

The fourth adjustment submodule is used for determining a plurality of preset thresholds based on the memory size configured for caching the radio link control RLC protocol data units PDU;

the fifth adjustment submodule is used for constructing a plurality of threshold intervals according to the preset thresholds;

the sixth adjustment submodule is used for configuring a transmission window of a corresponding grade for each threshold value interval, and the transmission windows of different grades are different in size.

Further, the fourth adjustment submodule includes a third adjustment unit, a fourth adjustment unit, and a fifth adjustment unit, wherein:

the third adjusting unit is used for determining the number of full-load minimum RBs according to the memory size and the configurable maximum transmission window; determining the maximum number of full-load RBs according to the memory size and the configurable minimum transmission window; the full-load minimum RB number refers to an RB number that can be established when 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 an RB number that can be established when 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 used for determining the number of transmission window grades 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 number of full-load minimum RBs, the number of full-load maximum RBs, and the number of transmission window levels.

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

the sixth adjusting unit is used for arranging the preset thresholds and the numerical value 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, so as to obtain the multiple threshold intervals.

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

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

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

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

the eighth adjusting unit is used for determining that the grade of the corresponding transmission window is N according to the target threshold interval;

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

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

the first adjusting subunit is configured to select at least one RB from RBs of a first class; the first type of RBs are RBs with the level of a transmission window of 1;

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

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

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

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

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

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

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

Further, the device also comprises a second adjusting module;

the second adjustment module is configured to reduce the level of the transmission window of all RBs currently by at least 1 when the total number of RBs that have been established gradually decreases and the current number of RBs has decreased to be less than a preset number threshold.

Further, the device also comprises a third adjusting module;

the third adjustment module is configured to decrease the level of the transmission window of the fourth class RB by at least 1 when the total number of RBs established is gradually decreased and the current number of RBs is decreased to be smaller than the preset number threshold, where the level of the transmission window of the fourth class RB is larger than the preset level threshold.

Further, the device also comprises a fourth adjusting module;

the fourth adjustment module is configured to reduce the level of the transmission window of the fifth type of RB by at least 1 when the number of the established total RBs gradually decreases and the current number of the established total RBs is smaller than the preset number threshold, where the fifth type of 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, when the total number of RBs that have been established gradually decreases and the number of RBs that have been currently decreased to be smaller than a preset number threshold, preferentially decrease the level of the transmission window of the fifth RB in the fourth RB by at least 1; the fourth class of RBs are RBs with the level of the transmission window being greater than a preset level threshold; and the fifth type of RB is an RB with poor air quality.

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

In yet another aspect, embodiments of the present invention provide a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the method provided in the first aspect described above.

According to the self-adaptive adjustment method and device for the transmission window size of the radio link control layer, the reasonable transmission window size is configured for the current RBs in a self-adaptive mode based on the total number of the current RBs, the utilization rate of a memory is improved, the existing memory is built with as many users as possible under the condition that normal throughput is not affected, and the capacity of a base station access user is increased.

Drawings

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

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

fig. 3 is a schematic diagram of an adaptive adjustment device for RLC layer transmission window size 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 more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the 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 embodiment of the present invention provides an RLC layer transmission window size adaptive adjustment method, where an execution body is an RLC layer transmission window size adaptive adjustment device. The method comprises the following steps:

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

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

The RLC layer receives indication information to establish a target RB.

Step S102, determining the transmission window size of the target RB based on the total number of the RBs which are currently established.

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

If the number of currently established total RBs is small, for example, the maximum number of bearers that can be established is 100, the number of currently established total 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, so as to ensure larger throughput and higher reliability.

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

The self-adaptive adjustment method for the transmission window size of the wireless link control layer provided by the embodiment of the invention adaptively configures reasonable transmission window size for the current RBs based on the total number of the current RBs, improves the utilization rate of the memory, establishes as many users as possible in the existing memory under the condition of not affecting normal throughput, and increases the capacity of the base station for accessing users.

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

determining the total RB number which is currently established;

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

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

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

The RLC layer is responsible for maintaining and managing all RBs established, and after receiving the indication information for establishing the target RB, it can determine the total number of RBs currently established by querying.

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

The total RB number may be compared with the end value of each threshold interval, and when the total RB number is greater than/equal to the lower limit (left end point) of a certain threshold interval and less than/equal to the upper limit (right end point) of the threshold interval, the threshold interval is determined to be the target threshold interval where the total RB number is located.

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

And determining the size of the transmission window corresponding to the target threshold interval through searching, and configuring the size 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 previously constructed, and the transmission window sizes corresponding to the five threshold intervals are 10, 8, 7, 6, and 4, respectively.

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

Specifically, in the embodiment of the present invention, before determining the transmission window size of the target RB according to the target threshold interval, a plurality of 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 are different in size.

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

first, determining the target level of the corresponding transmission window according to the target threshold interval.

The corresponding relation between the threshold interval and the transmission window level can be stored locally, and after the target threshold interval is determined, the target level 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 sections of [0,25], (25, 50], (50, 75], (75,100), and (100, 130) are previously constructed, and the levels of transmission windows corresponding to the five threshold sections 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.

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

Specifically, in the embodiment of the present invention, before determining the target threshold interval where the total RB number is located, a plurality of threshold intervals need to be constructed in advance, 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 a memory size configured for buffering RLC PDUs.

The memory size configured for buffering RLC PDUs in a base station is typically a fixed value, which is related to the hardware configuration of the base station. The larger the transmission window configured for RB, the fewer the number of RBs that can be and are established, the smaller the transmission window configured for RB, and the greater the number of RBs that can be and are established.

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

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

For example, when any two adjacent preset thresholds are determined to be 25,50, 75,100 and 130, and the value 0 is combined, five threshold intervals, namely [0,25], (25, 50], (50, 75], (75,100) and (100, 130) can be constructed.

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

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

Based on any one of the foregoing embodiments, further, the determining a plurality of preset thresholds based on a memory size configured for buffering radio link control RLC protocol data units PDUs specifically includes:

Specifically, in the embodiment of the present invention, the specific steps for determining a plurality of preset thresholds based on the memory size configured for buffering RLC PDUs are as follows:

Firstly, determining the number of RBs with minimum full load according to the memory size configured for buffering RLC PDUs and the configurable maximum transmission window in a base station _min The method comprises the steps of carrying out a first treatment on the surface of the Determining the full-load maximum RB number RB according to the memory size configured for buffering RLC PDU and the configurable minimum transmission window in the base station _max 。

Wherein RB is _min Refers to the number of RBs that can be established when the transmission windows of all RBs are configured as a configurable maximum transmission window and the memory size is fully consumed. RB (radio bearer) _max Refers 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 fully consumed.

The configurable maximum transmission window may be the maximum transmission window specified in the standard protocol directly, or may be a suitable value configured according to the maximum transmission window specified in the standard protocol in combination with the actual situation.

The configurable minimum transmission window may be the minimum transmission window specified in the standard protocol directly, or may be a suitable value configured according to the minimum transmission window specified in the standard protocol in combination with the actual situation.

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

For example, the size of the configurable maximum transmission window specified in the NR standard is 2 ¹⁷ The configurable minimum transmission window has a size of 2 ¹¹ And the size of the transmission window can be set to be an exponent power of 2, the number N of the transmission window grades can be set to be 7, and the sizes of the transmission windows of the 7 grades are respectively 2 ¹⁷ 、2 ¹⁶ 、2 ¹⁵ 、2 ¹⁴ 、2 ¹³ 、2 ¹² And 2 ¹¹ 。

Finally, according to RB _min 、RB _max And N, determining a plurality of preset thresholds.

For example, every RB can be started from 0 _min 2, selecting one preset threshold value, and selecting N preset threshold values which are respectively 1 xRB _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 foregoing 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 a plurality of threshold intervals according to a plurality of preset thresholds are as follows:

first, a plurality of preset thresholds and values 0 are arranged in a sequence in order from small to large or from large to small.

For example, n+1 preset thresholds are respectively 1×rb _min /2、2*RB _min /2、3*RB _min /2、…、(N-1)*RB _min /2、N*RB _min 2 and RB _max The n+1 preset thresholds and the value 0 are arranged into a sequence from small to large, wherein the sequence is as follows: 0,1 x 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 x RB _min /2，2*RB _min /2，3*RB _min /2，…，(N-1)*RB _min /2，N*RB _min /2，RB _max . The multiple threshold intervals constructed are: [0,1 x 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.times.RB) _min /2,RB _max ]。

Based on any one of the foregoing embodiments, further, the 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:

first, the threshold interval end points or midpoints are ordered and numbered in order of decreasing size.

For example, the n+1 threshold intervals constructed are: [0,1 x 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.times.RB) _min /2,RB _max ]. The end points or the middle points of the N+1 threshold intervals are ordered and numbered from small to large, and the 1 st threshold interval is [0,1 x RB _min /2]The 2 nd threshold interval is (1×rb) _min /2,2*RB _min /2]The 3 rd threshold interval is (2×rb) _min /2,3*RB _min /2]…, the Nth threshold interval is ((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+1th threshold interval is configured as N. N is the total number of the grades of the transmission windows, N+1 is the total number of the threshold intervals, 0< N < N+1, the transmission window of the 1 st grade is the configurable maximum transmission window, the transmission window of the N th grade is the configurable minimum transmission window, the larger the grade is, the smaller the size of the transmission window is, and the larger the size of the transmission window is.

For example, the 1 st threshold interval obtained is [0,1×rb _min /2]The 2 nd threshold interval is (1×rb) _min /2,2*RB _min /2]The 3 rd threshold interval is (2×rb) _min /2,3*RB _min /2]…, the Nth threshold interval is ((N-1) RB) _min /2,N*RB _min /2]The (n+1) th threshold interval is (n×rb _min /2,RB _max ]ThenThreshold interval [0,1 x RB ] _min /2]The corresponding transmission window is configured to have a rank of 1, and a threshold interval (1×rb _min /2,2*RB _min /2]The corresponding transmission window is configured to have a rank of 2, and a threshold interval (2×rb _min /2,3*RB _min /2]The corresponding transmission window is arranged to have a rank of 3, …, and the threshold interval ((N-1) ×rb) _min /2,N*RB _min /2]The corresponding transmission window is configured to have a level of N, and a threshold interval (n×rb _min /2,RB _max ]The level of the corresponding transmission window is configured as N.

Based on any one of the foregoing embodiments, further, when the target threshold interval is the n+1th threshold interval, the determining, according to the target threshold interval, the transmission window size of the target RB specifically includes:

Specifically, fig. 2 is a logic flow diagram of adaptive adjustment of RLC layer transmission window size according to an embodiment of the present invention, as shown in fig. 2, for example, the 1 st threshold interval is [0,1×rb _min /2]The 2 nd threshold interval is (1×rb) _min /2,2*RB _min /2]The 3 rd threshold interval is (2×rb) _min /2,3*RB _min /2]…, the Nth threshold interval is ((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 x rb _min /2]The corresponding transmission window is configured to have a rank of 1, and a threshold interval (1×rb _min /2,2*RB _min /2]The corresponding transmission window is arranged to have a rank of 2, and a threshold interval (2 ×RB _min /2,3*RB _min /2]The corresponding transmission window is rated 3, …, and the threshold interval ((N-1) ×rb) _min /2,N*RB _min /2]The corresponding transmission window is arranged in a level of N, and the threshold interval (n×rb _min /2,RB _max ]The level of the corresponding transmission window is configured as N.

If the target threshold interval is [0,1×RB _min /2]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]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]The level of the transmission window of the target RB is configured to 3;

…

If the target threshold interval is ((N-1) ×RB) _min /2,N*RB _min /2]The level of the transmission window of the target RB is configured as N;

if the target threshold interval is (N×RB) _min /2,RB _max ]The level of the transmission window of the target RB is configured as N, since the number of currently established RBs is greater than n×rb _min In the case of/2, there may be a case that the memory is not enough, so that at least one established RB needs to be selected to increase the rank value of its transmission window by at least 1 while configuring the rank of the transmission window of the target RB to N.

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

Specifically, in the embodiment of the present invention, the number of RBs currently established is greater than n×rb _min When at least one established RB needs to be selected to increase the rank value of its transmission window by at least 1, the rank of the transmission window of the RB whose rank is 1 may be increased by at least 1, that is, the RB whose transmission window is the largest is selected to increase the rank of its transmission window by at least 1.

Specifically, in the embodiment of the present invention, the number of RBs currently established is greater than n×rb _min And/2, when at least one established RB is required to increase the grade value of the transmission window by at least 1, the grade of the transmission window of the RB with poor air quality can be increased by at least 1.

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

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

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

If the second type of RBs do not exist in the first type of RBs, at least one second type of RBs is selected from the third type of RBs; the third class of RBs is the class 2 RBs of the transmission window.

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

Specifically, since the RB establishment procedure is dynamic, there is an RB establishment and an RB deletion, in the embodiment of the present invention, after determining the transmission window size of the target RB based on the total number of RBs currently established, if it is detected that when the total number of RBs established gradually decreases and the total number of RBs currently decreases to be less than the preset number threshold, the level of the transmission window of all RBs currently decreases by at least 1, that is, when the total number of RBs established decreases to be memory-efficient, the transmission window sizes of all RBs may be appropriately increased, and even when the total number of RBs established decreases to be memory-efficient, the transmission window sizes of all RBs may be adjusted to be 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 transmission window size of the target RB based on the total number of RBs currently established, if it is detected that when the total number of RBs established gradually decreases and the total number of RBs currently decreases to be smaller than the preset number threshold, the level of the transmission window of the fourth class RB is decreased by at least 1, and the level of the transmission window is larger than the preset level threshold, that is, the level of the transmission window of the RB with the transmission window size 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 level threshold may be set according to actual conditions.

Specifically, in the embodiment of the present invention, after determining the transmission window size of the target RB based on the total number of RBs currently established, if it is detected that when the total number of RBs established gradually decreases and the total number of RBs currently decreases to be smaller than the preset number threshold, the level of the transmission window of the fifth class of RBs is decreased by at least 1, and the level of the transmission window of the fifth class of RBs 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 transmission window size of the target RB based on the current total number of RBs, if it is detected that when the current total number of RBs is gradually reduced and is currently reduced to be smaller than the preset number threshold, but the current memory is insufficient to increase the transmission window of too many RBs, the level of the transmission window of the fifth type of RBs in the fourth type of RBs is reduced by at least 1, where the fourth type of RBs is an RB whose transmission window level is greater than the preset level threshold, and the fifth type of RBs is an RB with poor air interface quality, that is, an RB with a smaller transmission window and a 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 level threshold may be set according to actual conditions.

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

Specifically, in the embodiment of the invention, the air interface quality is measured by the 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. The preset block error rate threshold value can be set according to actual conditions.

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

Specifically, in the embodiment of the present 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 size of the configurable minimum transmission window is one half of the minimum value of the configurable RLC PDU SN.

For example, in the NR standard protocol, the maximum configurable value of the RLC PDU SN is 2 ¹⁸ And 2 ¹² The size of the configurable maximum transmission window is configured to be 2 ¹⁷ The size of the configurable minimum transmission window is configured to be 2 ¹¹ 。

Fig. 3 is a schematic diagram of an RLC layer transmission window size adaptive adjustment device according to an embodiment of the present invention, where, as shown in fig. 3, the embodiment of the present invention provides an RLC layer transmission window size adaptive adjustment device, including: 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 adjustment module 302 is configured to determine a transmission window size of the target RB based on a total number of RBs currently established.

Specifically, the embodiment of the present invention provides an RLC layer transmission window size adaptive adjustment apparatus, which is configured to perform the method in the foregoing corresponding embodiment, and specific steps of performing the method in the foregoing corresponding embodiment by using the apparatus provided in this embodiment are the same as those of the foregoing corresponding embodiment, and are not repeated herein.

Based on any of the foregoing embodiments, further, the first adjustment module includes a first adjustment sub-module, a second adjustment sub-module, and a third adjustment sub-module, wherein:

Based on any of the above embodiments, further, the third adjustment submodule includes a first adjustment unit and a second adjustment unit, wherein:

Based on any of the above embodiments, further comprising a fourth adjustment sub-module, a fifth adjustment sub-module, and a sixth adjustment sub-module, wherein:

Based on any one of the above embodiments, further, the fourth adjustment submodule includes a third adjustment unit, a fourth adjustment unit, and a fifth adjustment unit, where:

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

Based on any one of the foregoing embodiments, further, the sixth adjustment submodule includes an eighth adjustment unit and a ninth adjustment unit, where:

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

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

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

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

Based on any of the above embodiments, further comprising a second adjustment module;

Based on any of the above embodiments, further comprising a third adjustment module;

Based on any of the above embodiments, further comprising a fourth adjustment module;

Based on any of the above embodiments, further comprising a fifth adjustment module;

Fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present invention, as shown in fig. 4, where the electronic device includes: a processor (processor) 401, a communication interface (Communications 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 call a computer program stored on the memory 403 and executable on the processor 401 to perform the steps of:

Further, 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 sold or used as a stand alone product. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform 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, random Access Memory), a magnetic disk, or an optical disk, or 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, are capable of performing the steps of the method embodiments described above, for example comprising:

Further, embodiments of the present invention provide a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the method embodiments described above, for example, including:

The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.

From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course may be implemented by means of hardware. Based on this understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in the respective embodiments or some parts of the embodiments.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the 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 scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. The adaptive adjustment method for the size of the transmission window of the wireless link control layer is characterized by comprising the following steps:

determining a transmission window size of the target RB based on a total number of RBs currently established;

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

determining the total RB number which is currently established;

determining the transmission window size of the target RB according to the target threshold interval;

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

2. The method for adaptively adjusting the size of a transmission window of a radio link control layer according to claim 1, wherein before determining the target threshold interval in which the total RB number is located, further comprising:

3. The method for adaptively adjusting the size of a transmission window of a radio link control layer according to claim 2, wherein the determining a plurality of preset thresholds based on the memory size configured for buffering radio link control RLC protocol data units PDUs, specifically comprises:

4. The method for adaptively adjusting the size of a transmission window of a radio link control layer according to claim 2, wherein the constructing a plurality of threshold intervals according to the plurality of preset thresholds specifically includes:

5. The method for adaptively adjusting the size of a transmission window of a radio link control layer according to claim 2, wherein said configuring a transmission window of a corresponding level for each threshold interval specifically comprises:

6. The method for adaptively adjusting the transmission window size of the radio link control layer according to claim 5, wherein when the target threshold interval is the n+1th threshold interval, the determining the transmission window size of the target RB according to the target threshold interval specifically includes:

7. The method for adaptively adjusting the size of a transmission window of a radio link control layer as set forth in claim 6, wherein said selecting at least one RB established increases the level of the transmission window by at least 1, specifically comprising:

8. The method for adaptively adjusting the size of a transmission window of a radio link control layer as set forth in claim 6, wherein said selecting at least one RB established increases the level of the transmission window by at least 1, specifically comprising:

9. The method for adaptively adjusting the size of a transmission window of a radio link control layer as set forth in claim 6, wherein said selecting at least one RB established increases the level of the transmission window by at least 1, specifically comprising:

10. The radio link control layer transmission window size adaptive adjustment method according to any one of claims 1-9, characterized in that after the determining the transmission window size of the target RB based on the currently established total number of RBs, further comprises:

11. The radio link control layer transmission window size adaptive adjustment method according to any one of claims 1-9, characterized in that after the determining the transmission window size of the target RB based on the currently established total number of RBs, further comprises:

12. The radio link control layer transmission window size adaptive adjustment method according to any one of claims 1-9, characterized in that after the determining the transmission window size of the target RB based on the currently established total number of RBs, further comprises:

13. The radio link control layer transmission window size adaptive adjustment method according to any one of claims 1-9, characterized in that after the determining the transmission window size of the target RB based on the currently established total number of RBs, further comprises:

14. The adaptive adjustment method of the transmission window size of the radio link control layer according to claim 8 or 9, wherein the air interface quality is measured by a block error rate; the second type of RBs are RBs with the block error rate larger than a preset block error rate threshold.

15. The adaptive adjustment method of the transmission window size of the radio link control layer according to claim 3 or 5, wherein the size of the configurable maximum transmission window is one half of the maximum value of the configurable RLC PDU sequence number SN;

16. A radio link control layer transmission window size adaptive adjustment apparatus, comprising:

a first adjustment module, configured to determine a transmission window size of the target RB based on a total RB number currently established;

the first adjustment module comprises a first adjustment sub-module, a second adjustment sub-module and a third adjustment sub-module, wherein:

The third adjustment submodule is used for determining the size of a transmission window of the target RB according to the target threshold interval;

the third adjustment submodule comprises a first adjustment unit and a second adjustment unit, wherein:

17. The radio link control layer transmission window size adaptive adjustment apparatus of claim 16, further comprising a fourth adjustment sub-module, a fifth adjustment sub-module, and a sixth adjustment sub-module, wherein:

18. The radio link control layer transmission window size adaptive adjustment apparatus according to claim 17, wherein the fourth adjustment submodule includes a third adjustment unit, a fourth adjustment unit, and a fifth adjustment unit, wherein:

19. The radio link control layer transmission window size adaptive adjustment apparatus according to claim 17, wherein the fifth adjustment submodule includes a sixth adjustment unit and a seventh adjustment unit, wherein:

20. The radio link control layer transmission window size adaptive adjustment apparatus according to claim 17, wherein the sixth adjustment submodule includes an eighth adjustment unit and a ninth adjustment unit, wherein:

21. The radio link control layer transmission window size adaptive adjustment apparatus according to claim 20, wherein when the target threshold interval is the n+1th threshold interval:

22. The radio link control layer transmission window size adaptive adjustment apparatus of claim 21, wherein the ninth adjustment unit comprises a first adjustment subunit and a second adjustment subunit, wherein:

23. The radio link control layer transmission window size adaptive adjustment apparatus of claim 21, wherein the ninth adjustment unit comprises a third adjustment subunit and a fourth adjustment subunit, wherein:

24. The radio link control layer transmission window size adaptive adjustment apparatus of claim 21, wherein the ninth adjustment unit comprises a fifth adjustment subunit and a sixth adjustment subunit, wherein:

25. The radio link control layer transmission window size adaptive adjustment apparatus according to any one of claims 16-24, further comprising a second adjustment module;

26. The radio link control layer transmission window size adaptive adjustment apparatus according to any one of claims 16 to 24, further comprising a third adjustment module;

27. The radio link control layer transmission window size adaptive adjustment apparatus according to any one of claims 16-24, further comprising a fourth adjustment module;

28. The radio link control layer transmission window size adaptive adjustment apparatus according to any one of claims 16 to 24, further comprising a fifth adjustment module;

29. The radio link control layer transmission window size adaptive adjustment apparatus according to claim 23 or 24, wherein the air interface quality is measured by a block error rate; the second type of RBs are RBs with the block error rate larger than a preset block error rate threshold.

30. The radio link control layer transmission window size adaptive adjustment apparatus according to claim 18 or 20, wherein the size of the configurable maximum transmission window is one half of the maximum value of configurable RLC PDU sequence numbers SN;

31. An electronic device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor, when executing the computer program, performs the steps of the radio link control layer transmission window size adaptation method of any one of claims 1 to 15.

32. A non-transitory computer readable storage medium having stored thereon a computer program, which when executed by a processor, implements the steps of the radio link control layer transmission window size adaptation method according to any of claims 1 to 15.