CN114513269A

CN114513269A - Resource selection window processing method and device and terminal

Info

Publication number: CN114513269A
Application number: CN202011288227.2A
Authority: CN
Inventors: 刘天心; 马腾; 任晓涛; 王俊伟
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2020-11-17
Filing date: 2020-11-17
Publication date: 2022-05-17
Anticipated expiration: 2040-11-17
Also published as: CN114513269B

Abstract

The invention provides a method, a device and a terminal for processing a resource selection window, wherein the method comprises the following steps: determining at least one of an upper limit value of a first parameter and a lower limit value of the first parameter according to at least one condition parameter; the first parameter is a boundary parameter corresponding to a termination boundary of the resource selection window; wherein the condition parameters include: the service priority, the channel busy rate CBR, the channel occupancy rate CR or the maximum retransmission times of the hybrid automatic retransmission request HARQ of the service to be transmitted; when the value range of the termination boundary of the resource selection window is determined, the upper limit value and/or the lower limit value of the first parameter of the termination boundary of the resource selection window are determined according to at least one of the service priority of the service to be transmitted, the channel busy rate CBR, the channel occupancy rate CR and the maximum retransmission times of the hybrid automatic repeat request HARQ, so that the size of the resource selection window is more reasonable, and unnecessary time delay is reduced.

Description

Resource selection window processing method and device and terminal

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method, an apparatus, and a terminal for processing a resource selection window.

Background

The method for allocating resources based on sensing in a direct link (Sidelink, which may also be called as a Sidelink, etc.) mainly includes: resource sensing, resource exclusion, resource selection, resource preemption and reselection. When the terminal needs to transmit information, the terminal excludes the unavailable resource through the sensing result in a period of time before, and selects the resource capable of transmitting the information to transmit.

For example, by reaction at [ n-T0, n-T_proc,0]The sensing result in this time (where T_proc,0Processing time to include decoded perceived resources), in a resource selection window [ n + T1, n + T2]]Internally selecting resources, wherein the starting boundary T1 of a window is less than or equal to Tproc,1 specifically depends on the terminal capability, Tproc,1 is the transmission processing Delay, the ending boundary T2 of the window meets the condition that T2min is less than or equal to T2 and less than or equal to PDB (Packet Delay Budget), the value of T2 depends on the terminal implementation, and T2 depends on the terminal implementation_minRefers to the minimum value that T2 may take, depending on the priority of the traffic.

In summary, in the prior art, the upper limit of the resource selection window is the remaining packet budget, and there is a situation where the priority is higher but the packet delay budget is larger, and the terminal may select a larger resource selection window, and when the channel is idle, the terminal may actually transmit the resource with a smaller delay, but the resource transmission delay selected according to the existing mechanism is larger. In addition, the minimum range of the existing resource selection window is only related to the priority, when the priority is higher, the preferable window is smaller, but when the channel is idle, the minimum range of the window of the service with lower priority may be larger, which results in unnecessary delay.

Disclosure of Invention

The embodiment of the invention aims to provide a method, a device and a terminal for processing a resource selection window, so as to solve the problem that the range determination mode of the resource selection window in the prior art is single according to conditions and cannot meet the requirement of low time delay.

In order to solve the above problem, an embodiment of the present invention provides a method for processing a resource selection window, where the method includes:

determining at least one of an upper limit value of a first parameter and a lower limit value of the first parameter according to at least one condition parameter; the first parameter is a boundary parameter corresponding to a termination boundary of the resource selection window;

wherein the condition parameters include: the service priority of the service to be transmitted, the channel busy rate CBR, the channel occupancy rate CR or the maximum retransmission times of the hybrid automatic repeat request HARQ.

Wherein, according to at least one condition parameter, determining an upper limit value of a first parameter comprises:

determining a first index value according to the number of the condition parameters, the level number of the condition parameters and the level values of the condition parameters;

and determining that the upper limit value corresponding to the first index value is the upper limit value of the first parameter according to the first index value.

Determining a first index value according to the number of the condition parameters, the number of the grades of the condition parameters and the grade value of each condition parameter, wherein the determining of the first index value comprises the following steps:

determining the first index value s according to a first formula; wherein the first formula is:

wherein s is a first index value; m is the sum of grade values of each condition parameter; n1 is the number of condition parameters; c is the number of levels of the condition parameter.

acquiring n2 condition parameters reaching the window upper limit reduction threshold; n2 is an integer greater than or equal to 1;

and determining the upper limit value of the first parameter according to the average reduction ratio value of the n2 conditional parameters, the shortest time required by the initial retransmission resource of one transmission block and the packet delay budget of the service to be transmitted.

Wherein, determining the upper limit value of the first parameter according to the average reduction ratio value of the n2 conditional parameters, the shortest time required by the initial retransmission resource of one transmission block, and the packet delay budget of the service to be transmitted includes:

determining an upper limit value T2max of the first parameter according to a second formula; wherein the second formula is:

wherein, T2max is the upper limit value of the first parameter; q is the shortest time required for the initial retransmission resource of one transport block; PDB is the packet delay budget of the service to be transmitted; r is the average reduction scale value of n2 condition parameters.

Wherein the method further comprises:

determining a reduction ratio value of each of the n2 condition parameters;

the average of the reduction ratio values of the respective condition parameters is calculated, and the average reduction ratio value of the n2 condition parameters is determined.

Wherein the method comprises the following steps:

determining a reduction ratio value r' of a condition parameter according to a third formula; wherein the third formula is:

wherein r' is a reduction ratio value of a condition parameter; x1 is the value of the condition parameter; y1 is the window upper limit reduction threshold corresponding to the condition parameter; e is a predetermined coefficient.

determining a first type of condition parameter and a second type of condition parameter in the at least one condition parameter, wherein the increase of the value of the first type of condition parameter increases the upper limit value of the first parameter, and the increase of the value of the second type of condition parameter decreases the upper limit value of the first parameter;

if the value of the first type of condition parameter reaches the threshold value corresponding to the first type of condition parameter and the value of the second type of condition parameter reaches the threshold value corresponding to the second type of condition parameter, determining the combination of n3 first type of condition parameters and second type of condition parameters reaching the threshold value; n3 is an integer greater than or equal to 1;

determining the upper limit value of the first parameter corresponding to each second-type condition parameter according to the reduction ratio value of each second-type condition parameter in the n3 second-type condition parameters, the shortest time required by the initial retransmission resource of one transmission block and the packet delay budget of the service to be transmitted;

and calculating the average value of the upper limit values of the first parameters corresponding to the second type of condition parameters respectively, and determining the upper limit value of the first parameter.

Determining the upper limit value of the first parameter corresponding to each second-type condition parameter according to the reduction ratio value of each second-type condition parameter in the n3 second-type condition parameters, the shortest time required by the initial retransmission resource of one transmission block, and the packet delay budget of the service to be transmitted, includes:

determining an upper limit value T2 max' of a first parameter corresponding to a second type of condition parameter according to a fourth formula; wherein the fourth formula is:

wherein, T2 max' is an upper limit value of a first parameter corresponding to a second type condition parameter; q is the shortest time required by the initial retransmission resource of one transmission block; PDB is the packet delay budget of the service to be transmitted; b is a reduced scale value of a second type of condition parameter.

Wherein the method further comprises:

determining a reduction ratio value b of one of the n3 second-class condition parameters according to a fifth formula; wherein the fifth formula is:

b＝|y2-x2|*d；

wherein b is a reduction ratio value of a second type condition parameter; x2 is the value of the second type condition parameter; y2 is the threshold corresponding to the second type condition parameter; d is the coefficient corresponding to the second type condition parameter.

Wherein determining a lower limit value of the first parameter according to at least one condition parameter comprises:

determining a first index of a candidate lower limit value of a first parameter according to the service priority;

if the value of the condition parameter reaches a first threshold value and the difference between the value of the condition parameter and the first threshold value is larger than or equal to a second threshold value, subtracting 1 from the first index to obtain a second index;

if the candidate lower limit value of the first parameter corresponding to the second index is greater than or equal to the shortest time required by the initial retransmission resource of one transmission block, determining that the lower limit value of the first parameter is the candidate lower limit value of the first parameter corresponding to the second index; otherwise, adding 1 to the second index to obtain a first index, and determining that the lower limit value of the first parameter is the candidate lower limit value of the first parameter corresponding to the first index.

Wherein the method further comprises:

determining the shortest time q required by the initial retransmission resource of one transmission block according to a sixth formula; wherein the sixth formula is:

q＝(Nmax-1)*HARQ RTT+T1+Ts；

wherein q is the shortest time required by the initial retransmission resource of one transmission block; nmax is the sum of the initial retransmission times of a transmission block; the HARQ RTT is the round trip time of the hybrid automatic repeat request; t1 is the boundary parameter corresponding to the starting boundary of the resource selection window; ts is the sum of the time domain lengths of the reserved resources.

An embodiment of the present invention further provides a device for processing a resource selection window, including:

the device comprises a determining unit, a judging unit and a judging unit, wherein the determining unit is used for determining at least one of an upper limit value of a first parameter and a lower limit value of the first parameter according to at least one condition parameter; the first parameter is a boundary parameter corresponding to a termination boundary of the resource selection window;

The embodiment of the invention also provides a terminal, which comprises a memory, a transceiver and a processor:

a memory for storing a computer program; a transceiver for transceiving data under control of the processor; a processor for reading the computer program in the memory and performing the following operations:

Wherein the processor is further configured to read the computer program in the memory and perform the following operations:

wherein, T2max is the upper limit value of the first parameter; q is the shortest time required by the initial retransmission resource of one transmission block; PDB is the packet delay budget of the service to be transmitted; r is the average reduction scale value of n2 condition parameters.

determining a reduction ratio value of each of the n2 condition parameters;

b＝|y2-x2|*d；

q＝(Nmax-1)*HARQ RTT+T1+Ts；

An embodiment of the present invention further provides a processor-readable storage medium, where the processor-readable storage medium stores a computer program, and the computer program is configured to cause the processor to execute the method described above.

The technical scheme of the invention at least has the following beneficial effects:

in the method, the device and the terminal for processing the resource selection window of the embodiment of the invention, when the value range of the termination boundary of the resource selection window is determined, the upper limit value and/or the lower limit value of the first parameter of the termination boundary of the resource selection window is determined according to at least one of the service priority of the service to be transmitted, the channel busy rate CBR, the channel occupancy rate CR and the maximum retransmission times of the hybrid automatic repeat request HARQ, so that the size of the resource selection window is more reasonable, and unnecessary time delay is reduced.

Drawings

Fig. 1 is a schematic diagram illustrating steps of a method for processing a resource selection window according to an embodiment of the present invention;

fig. 2 is a schematic diagram illustrating an example one of a processing method of a resource selection window according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a processing apparatus for a resource selection window according to an embodiment of the present invention;

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

Detailed Description

In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.

The term "and/or" in the embodiments of the present invention describes an association relationship of associated objects, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.

In the embodiments of the present application, the term "plurality" means two or more, and other terms are similar thereto.

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The technical scheme provided by the embodiment of the application can be suitable for various systems, particularly 5G systems. For example, the applicable system may be a global system for mobile communication (GSM) system, a Code Division Multiple Access (CDMA) system, a Wideband Code Division Multiple Access (WCDMA) General Packet Radio Service (GPRS) system, a long term evolution (long term evolution, LTE) system, an LTE Frequency Division Duplex (FDD) system, an LTE Time Division Duplex (TDD) system, an LTE-a (long term evolution) system, a universal mobile system (universal mobile telecommunications system, UMTS), a Worldwide Interoperability for Mobile Access (WiMAX) system, a New Radio network (NR 5) system, etc. These various systems include terminal devices and network devices. The System may further include a core network portion, such as an Evolved Packet System (EPS), a 5G System (5GS), and the like.

The terminal referred to in the embodiments of the present application may refer to a device providing voice and/or data connectivity to a user, a handheld device having a wireless connection function, or other processing device connected to a wireless modem. In different systems, the names of the terminal devices may be different, for example, in a 5G system, the terminal device may be called a User Equipment (UE). A wireless terminal device, which may be a mobile terminal device such as a mobile telephone (or "cellular" telephone) and a computer having a mobile terminal device, for example, a portable, pocket, hand-held, computer-included, or vehicle-mounted mobile device, may communicate with one or more Core Networks (CNs) via a Radio Access Network (RAN). Examples of such devices include Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, and Personal Digital Assistants (PDAs). The wireless terminal device may also be referred to as a system, a subscriber unit (subscriber unit), a subscriber station (subscriber station), a mobile station (mobile), a remote station (remote station), an access point (access point), a remote terminal device (remote terminal), an access terminal device (access terminal), a user terminal device (user terminal), a user agent (user agent), and a user device (user device), which are not limited in this embodiment of the present application.

As shown in fig. 1, an embodiment of the present invention provides a method for processing a resource selection window, where the method is executed by a terminal, and the method includes:

step 101, determining at least one of an upper limit value of a first parameter and a lower limit value of the first parameter according to at least one condition parameter; the first parameter is a boundary parameter corresponding to a termination boundary of the resource selection window; wherein the condition parameters include: the service priority of the service to be transmitted, the channel busy rate CBR, the channel occupancy rate CR or the maximum retransmission times of the hybrid automatic repeat request HARQ.

The measurement of CBR (Channel Busy Ratio) mainly measures a Channel occupancy Ratio in a resource pool within a historical time window, and uses the Channel occupancy Ratio as a characterization parameter of the current resource pool congestion degree.

The evaluation of the CR (Channel occupancy Ratio) is that the terminal itself evaluates the proportion of the resource occupancy of the terminal transmission or the expected transmission within a time window including the past and the future, the calculation being at the granularity of sub-channels.

The maximum retransmission time of HARQ (Hybrid Automatic Repeat Request) is to determine whether data retransmission is required according to ACK/NACK (correct/incorrect) feedback information, and the maximum retransmission time value range may be from 1 to 32, and is specifically configured by a higher layer.

Suppose the resource selection window is [ n + T1, n + T2], n is the current time, T1 is the starting boundary parameter of the resource selection window, and T2 is the ending boundary parameter (i.e. the first parameter) of the resource selection window. Step 101 of the embodiment of the present invention is used to determine the upper limit value T2max of T2 and/or the lower limit value T2min of T2, i.e. T2 is less than T2 max.

As an optional embodiment, the terminal determines the upper limit value T2max of the first parameter according to at least one of the service priority, CBR, CR, and HARQ maximum retransmission number of the service to be transmitted.

As another optional embodiment, the terminal determines the lower limit T2min of the first parameter according to the service priority of the service to be transmitted and at least one of CBR, CR and HARQ maximum retransmission times.

The embodiment of the present invention provides at least three ways of determining the upper limit value T2max of the first parameter, and each way is described in detail below.

The first method, step 101, includes:

In the embodiment of the present invention, the number of condition parameters is greater than or equal to 1 and less than or equal to 4. The terminal also selects the size of the upper limit of the window according to the resource under each condition parameter, and the upper limit is divided into c grades from small to large, namely, each condition parameter takes a value in the

sequence

1,2, … …, c (c is a positive integer).

Optionally, in the embodiment of the present invention, a value list of T2max is further preset, where the list includes a plurality of index values and values of T2max corresponding to the index values, respectively.

Specifically, determining the first index value according to the number of the condition parameters, the number of the grades of the condition parameters, and the grade value of each condition parameter includes:

Example 1

The value list of T2max is set as table 1:

TABLE 1

Dividing the size of the resource selection window into 4 grades of 1,2,3 and 4 from small to large according to the size of the resource selection window under each condition parameter, namely, each condition parameter takes a value in {1,2,3 and 4 }; the size of T2max is determined by three condition parameters of priority, CBR and CR and is set as A, B, C.

As shown in fig. 2, if a is 2, B is 2, and C is 1, then m is a + B + C is 5, n1 is 3, and C is 4; then

And comparing the value list of the T2max, and determining that the value of the upper limit value T2max of the first parameter is 150 if the index value is 7 and the corresponding value is 150.

Example two

The value list of T2max is set as table 2:

TABLE 2

Dividing the size of the resource selection window into 3 levels from small to large, namely, each condition parameter takes a value in {1,2,3}, according to the size of the resource selection window under each condition parameter; the size of T2max is determined by 4 conditional parameters of priority, CBR, CR, and HARQ maximum retransmission times, and set to A, B, C, D.

Assuming that a is 2, B is 2, C is 1, and D is 3, then m is a + B + C + D is 8, n1 is 4, and C is 3; then the

And comparing the value list of the T2max, and if the index value is 6 and the corresponding value is 100, determining that the value of the upper limit value T2max of the first parameter is 100.

Example three

The value list for T2max is set as table 3:

TABLE 3

Dividing the size of the resource selection window into 5 grades of 1,2,3,4 and 5 from small to large according to the size of the resource selection window under each condition parameter, namely, each condition parameter takes a value in {1,2,3,4 and 5 }; the size of T2max is determined by 2 parameters of priority and CBR, and set to A, B.

Let a be 4 and B be 1; then m + B5, n 12, c 5, then

And comparing the value list of the T2max, and if the index value is 12 and the corresponding value is 300, determining that the value of the upper limit value T2max of the first parameter is 300.

Example four

The value list for T2max is set as table 4:

index value	1	2	3	4	5	6	7	8
									Value of T2max	10	15	50	100	175	200	250	275

TABLE 4

Dividing the size of the resource selection window into 2 grades of 1 and 2 from small to large according to the size of the resource selection window under each condition parameter, namely, each condition parameter takes a value in {1,2 }; the size of T2max is determined by the 1 parameter CBR and is set as A.

Assuming that a is 2, m is 2, n1 is 1, and c is 2; then

And comparing the value list of the T2max, and if the index value is 4 and the corresponding value is 100, determining that the value of the upper limit value T2max of the first parameter is 100.

The second way, step 101, includes:

acquiring n2 condition parameters reaching the window upper limit reduction threshold; n2 is an integer greater than or equal to 1; the above-mentioned reaching of the window upper limit reduction threshold can be understood as: the value of the condition parameter is greater than or equal to the window upper limit reduction threshold, or the value of the condition parameter is less than or equal to the window upper limit reduction threshold, which can be specifically determined according to the condition parameter;

In this method, on the basis of determining a Packet Delay Budget (PDB) of a service, an upper limit value T2max of a first parameter is determined according to one or more conditions of a priority, CBR, CR, and a maximum number of retransmissions of HARQ. It should be noted that this method is generally triggered when the value of the PDB of the service to be transmitted is greater than a specific threshold w and a condition parameter reaching the window upper limit reduction threshold exists.

Specifically, determining the upper limit value of the first parameter according to the average reduction ratio value of the n2 conditional parameters, the shortest time required by the initial retransmission resource of one transmission block, and the packet delay budget of the service to be transmitted includes:

If n2 is greater than or equal to 2, the method further comprises:

determining a reduction ratio value of each of the n2 condition parameters;

Wherein the method comprises the following steps:

Optionally, the method further includes:

q＝(Nmax-1)*HARQ RTT+T1+Ts；

wherein q is the shortest time required by the initial retransmission resource of one transmission block; nmax is the sum of the initial retransmission times of a transmission block; the HARQ RTT is the round trip time of the hybrid automatic repeat request; t1 is the boundary parameter corresponding to the starting boundary of the resource selection window; ts is the sum of the time domain lengths of the reserved resources

Example five

Determining the window reduction upper limit value by 4 condition parameters of priority, CBR, CR and HARQ maximum retransmission times, and setting the window reduction upper limit value as A, B, C, D; assume that the values of x1 and y1 for the 4 condition parameters are shown in table 5.

Condition	A	B	C	D
					x1
	2	1	600	7
					y1	4	3	500	8

TABLE 5

Where B, C, D reaches a threshold y1 that meets the upper limit of the reduction window. Assuming that w is 300 and the PDB of the actual traffic is 450, window upper limit reduction can be performed. Let r (b) be 0.2, r (c) be 0.1, and r (d) be 0.15, multiplied by a coefficient. Then r ═ r (b) + r (c) + r (d)/3 ═ (0.2+0.1+0.15)/3 ═ 0.15.

Let q be 50; then:

example six

The window reduction upper limit value is determined by the priority, the CR, and 3 conditional parameters of the HARQ maximum retransmission times, and is set to A, B, C, assuming that the values of x1 and y1 of the 3 conditions are as shown in table 6:

condition	A	B	C
				x1	5	400	7
y1	4	500	8

TABLE 6

Where A, C reaches a threshold y1 that meets the upper limit of the reduction window. Assuming that w is 300 and the PDB of the actual service is 500, window upper limit reduction can be performed.

When the coefficients are multiplied, r (a) is 0.5, r (c) is 0.4, and r (a) + r (c))/2 (0.5+0.4)/2 (0.45) can be obtained.

Assuming that q is 100, then:

example seven

The upper limit of window reduction is determined by the priority and the maximum number of HARQ retransmissions 2 conditional parameters, which is set to A, B, and assuming that the values of x1 and y1 of 2 conditions are as shown in table 7:

condition	A	B
			x1
	2	7
			y1	4	8

TABLE 7

Wherein A, B reaches a threshold y1 that meets the upper limit of the reduction window; assuming that w is 200 and the PDB of the actual service is 300, window upper limit reduction can be performed.

When multiplied by a coefficient, r (a) is 0.4 and r (b) is 0.2, and r ═ (r (a) + r (b))/2 is (0.4+0.2)/2 is 0.3.

Assuming that q is 50, then:

example eight

The upper limit of window reduction is determined by 1 parameter of CR, which is set as a, and the values of x1 and y1 of the assumed condition are as shown in table 8:

condition	A
		x1	200
y1	400

TABLE 8

Where A reaches a threshold y1 that meets the upper limit of the reduction window; assuming that w is 200 and the PDB of the actual service is 300, window upper limit reduction can be performed.

Let r ═ r (a) ═ 0.5 after multiplication by a coefficient.

Assuming that q is 60, then:

the third way, step 101, includes:

determining a first type of condition parameter and a second type of condition parameter in the at least one condition parameter, wherein the increase of the value of the first type of condition parameter increases the upper limit value of the first parameter, and the increase of the value of the second type of condition parameter decreases the upper limit value of the first parameter; for example, the service priority and the maximum number of HARQ retransmissions are first type condition parameters; CBR and CR are second type condition parameters;

if the value of the first type of condition parameter reaches the threshold value corresponding to the first type of condition parameter and the value of the second type of condition parameter reaches the threshold value corresponding to the second type of condition parameter, determining the combination of n3 first type of condition parameters and second type of condition parameters reaching the threshold value; n3 is an integer greater than or equal to 1; for example, on the basis of the PDB being determined, if the value of the first type of condition parameter reaches the threshold corresponding to the first type of condition parameter, and the value of the second type of condition parameter is greater than the threshold corresponding to the second type of condition parameter, it may be said that the value of the second type of condition parameter contradicts the value of the first type of condition parameter;

wherein, T2 max' is an upper limit value of a first parameter corresponding to a second type condition parameter; q is the shortest time required by the initial retransmission resource of one transmission block; PDB is the packet delay budget of the service to be transmitted; b is a reduced scale value of a second type of condition parameter. Then T2max is equal to the average of n 3T 2 max'.

Wherein the method further comprises:

b＝|y2-x2|*d；

wherein b is a reduction ratio value of a second type condition parameter; x2 is the value of the second type condition parameter; y2 is the threshold corresponding to the second type condition parameter; d is the coefficient corresponding to the second type condition parameter. d varies according to the condition parameters.

Wherein the method further comprises:

q＝(Nmax-1)*HARQ RTT+T1+Ts；

For example, there may be contradictory items as shown in table 9 under the original conditions of the terminal configuration:

index value	Conditional parameters of the first kind	Conditional parameters of the second kind
			1	Priority value greater than threshold v	The value of CBR is less than the threshold value w
2	Priority value greater than threshold v	CR is greater than threshold x
			3	The maximum number of HARQ retransmissions is less than threshold y	The value of CBR is less than the threshold value w
4	The maximum number of HARQ retransmissions is less than threshold y	CR value greater than threshold x
			5	PDB value greater than threshold value z	The value of CBR is less than the threshold value w
6	PDB value greater than threshold value z	CR value greater than threshold x

TABLE 9

Example nine

The configuration of the terminal is shown in table 10:

condition parameter	Priority level	CBR	CR	HARQ maximum number of retransmissions	PDB
						Actual value	4	2	600	6	400
Threshold value	4	3	500	8	300

Watch 10

According to the condition values configured by the terminal, the contradictory items having index values of 3,4,5, and 6 can be obtained according to table 9. The absolute value of the difference between the actual value and the threshold value in the second type of condition parameter is a _ 3-1, a _ 5-1, a _ 4-100, and a _ 6-100;

multiplying a by coefficients respectively to obtain b _ 3-0.5, b _ 5-0.5, b _ 4-0.3, and b _ 6-0.3;

assuming that q is 50, the value of the service PDB is 400;

T2max_3＝225,T2max_5＝225,T2max_4＝313,T2max_6＝313。

t2max is the average of T2max _ n for the 4 contradictory terms, and T2max is 269.

Example ten

The configuration of the terminal is shown in table 11:

condition parameter	Priority level	CBR	CR	HARQ maximum number of retransmissions	PDB
						Actual value	5	2	600	9	300
Threshold value	4	3	500	8	300

TABLE 11

According to the condition value configured by the terminal, the contradiction items with index values of 1 and 2 can be obtained according to the table 9; the absolute value of the difference between the actual value and the threshold value in the second type of condition parameter is a _ 1-1, and a _ 2-100;

multiplying a by coefficients respectively to obtain b _ 1-0.5 and b _ 2-0.4;

assume that q is 40 and the value of the service PDB is 300

Then, T2max _3 is 170, T2max _2 is 196, T2max is the average value of T2max _ n corresponding to the 2 contradictory items, and T2max is 183.

Example eleven

The configuration of the terminal is shown in table 12:

condition parameter	Priority level	CBR	CR	HARQ maximum number of retransmissions	PDB
						Actual value	5	2	600	6	400
Threshold value	4	3	500	8	300

TABLE 12

According to the condition value configured by the terminal, the contradictory items with index values of 1,2,3,4,5 and 6 can be obtained according to the table 9; the absolute value of the difference between the actual value and its threshold value in the second type of condition parameter is a _ 1-1, a _ 3-1, a _ 5-1, a _ 2-100, a _ 4-100, a _ 6-100;

multiplying a by coefficients respectively to obtain b _ 1-0.3, b _ 3-0.4, b _ 5-0.5, b _ 2-0.3, b _ 4-0.3, and b _ 6-0.2; let q be 100 and the traffic PDB have a value of 400.

T2max _1 is 310, T2max _3 is 280, T2max _5 is 250, T2max _2 is 310, T2max _4 is 310, T2max _6 is 340. T2max is the average value of T2max _ n corresponding to 6 contradictory items, and T2max is 300.

Example twelve

The configuration of the terminal is shown in table 13:

condition parameter	Priority level	CBR	CR	HARQ maximum number of retransmissions	PDB
						Actual value	5	2	500	6	400
Threshold value	4	3	500	8	300

Watch 13

According to the condition value configured by the terminal, the contradictory items with index values of 1, 3 and 5 can be obtained according to the table 9; the absolute value of the difference between the actual value and the threshold value in the second type of condition parameter is a _ 1-1, a _ 3-1, and a _ 5-1;

multiplying a by coefficients respectively to obtain b _ 1-0.3, b _ 3-0.4 and b _ 5-0.5;

let q be 100 and the traffic PDB have a value of 400.

T2max _1 ═ 310, T2max _3 ═ 280, and T2max _5 ═ 250; t2max is the average value of T2max _ n corresponding to the 3 contradictory items, and T2max is 280.

The embodiment of the present invention further provides a manner for determining a lower limit value T2min of the first parameter, that is, step 101 includes:

Wherein, the method also comprises:

q＝(Nmax-1)*HARQ RTT+T1+Ts；

For example, the candidate lower limit values of the first parameter include: {1*2^μ,5*2^μ,10*2^μ,20*2^μ}; the corresponding mu values of 15,30,60 and 120KHz subcarriers are respectively 0,1,2 and 3. The index values of the candidate lower limit values are {0,1,2,3} in this order.

Example thirteen

Obtaining a value T of T2min as 20 and a first index i as 3 by the existing mechanism;

the configuration of the conditional parameters CBR, CR, HARQ maximum retransmission times is shown in table 14 (corresponding to a, B, C, respectively):

condition parameter	A	B	C
				w (actual value)	2	900	3
x (first threshold)	4	600	7
				y (second threshold)	2	500	4

TABLE 14

Then conditions a and B reach the threshold x but only condition a exceeds the threshold y and the second index value 3-1-2 results in a corresponding candidate value of 10 x2^μLet q be 30, and assume that the current subcarrier spacing is 60KHz, resulting in T2min being 40, 40>q, the index value is unchanged, namely the second index value is 2, and the final candidate value 10 x2 is obtained^μ(ii) a The final T2min has a value of 10 × 4 ═ 40.

Example fourteen

Obtaining a value T of T2min as 10 and a first index i as 2 by the existing mechanism;

the configuration of conditional parameters CBR, CR, HARQ maximum retransmission times is shown in table 15 (corresponding to a, B, C, respectively):

condition parameter	A	B	C
				w (actual value)	2	900	3
x (first threshold)	4	600	7
				y (second threshold)	2	300	4

Watch 15

Obtaining the condition parameters a and B reaching the threshold value x and both exceeding the threshold value y, obtaining the second index value 2-1, and obtaining the corresponding candidate value 5 x2^μ(ii) a Let q be 30, and assume that the current subcarrier spacing is 60KHz, the available T2min be 20, 20<q, then the second index value is added with 1, namely the final indexThe index i is 1+ 1-2, and the final candidate 10 x2 is obtained^μ(ii) a The final value of T2min is 10 × 4 — 40.

Example fifteen

the configuration of the conditional parameters CBR, CR, HARQ maximum retransmission times is shown in table 16 (corresponding to a, B, C, respectively):

condition parameter	A	B	C
				w (actual value)	2	900	12
x (first threshold)	4	600	7
				y (second threshold)	2	300	4

TABLE 16

Resulting in conditions a and B reaching the threshold x and both exceeding the threshold y, an index value i-3-1-2,obtaining corresponding candidate value 10 x2^μ(ii) a Let q be 30, and assume the current subcarrier spacing is 60KHz, resulting in T2min being 40, 40>q, the index value is unchanged, i is 2, and the final candidate value 10 x2 is obtained^μ(ii) a The final value of T2min is 10 × 4 — 40.

To sum up, when determining the value range of the termination boundary of the resource selection window, the embodiment of the present invention determines the upper limit value and/or the lower limit value of the first parameter of the termination boundary of the resource selection window according to at least one of the service priority of the service to be transmitted, the channel busy rate CBR, the channel occupancy CR, and the maximum retransmission times of the HARQ, so that the size of the resource selection window is more reasonable, and unnecessary delay is reduced when the priority is high and the delay requirement is low.

As shown in fig. 3, an embodiment of the present invention further provides a device for processing a resource selection window, including:

a determining unit 301, configured to determine at least one of an upper limit value of a first parameter and a lower limit value of the first parameter according to at least one condition parameter; the first parameter is a boundary parameter corresponding to a termination boundary of the resource selection window;

As an alternative embodiment, the determining unit comprises:

the first subunit is used for determining a first index value according to the number of the condition parameters, the level number of the condition parameters and the level dereferencing of each condition parameter;

and the second subunit is used for determining that the upper limit value corresponding to the first index value is the upper limit value of the first parameter according to the first index value.

As an alternative embodiment, the first subunit is further configured to:

As an alternative embodiment, the determining unit comprises:

a third subunit, configured to acquire n2 conditional parameters that reach the window upper limit reduction threshold; n2 is an integer greater than or equal to 1;

a fourth subunit, configured to determine an upper limit value of the first parameter according to the average reduction ratio value of the n2 conditional parameters, the shortest time required by the initial retransmission resource of one transmission block, and the packet delay budget of the service to be transmitted.

As an alternative embodiment, the fourth subunit is further configured to:

As an alternative embodiment, the apparatus further comprises:

a first scale determining unit configured to determine a reduction scale value of each of the n2 condition parameters;

and a second scale determining unit for calculating an average of the reduction scale values of the respective condition parameters, and determining an average reduction scale value of the n2 condition parameters.

As an alternative embodiment, the apparatus comprises:

a third proportion determining unit, configured to determine a reduction proportion value r' of a condition parameter according to a third formula; wherein the third formula is:

As an alternative embodiment, the determining unit comprises:

a fifth subunit, configured to determine a first type of condition parameter and a second type of condition parameter in the at least one condition parameter, where increasing a value of the first type of condition parameter increases an upper limit value of the first parameter, and increasing a value of the second type of condition parameter decreases the upper limit value of the first parameter;

a sixth subunit, configured to determine, if the value of the first-class condition parameter reaches the threshold corresponding to the first-class condition parameter, and the value of the second-class condition parameter reaches the threshold corresponding to the second-class condition parameter, a combination of n3 first-class condition parameters and second-class condition parameters that reach the threshold; n3 is an integer greater than or equal to 1;

a seventh subunit, configured to determine, according to the reduction ratio value of each second-type condition parameter in the n3 second-type condition parameters, the shortest time required by the initial retransmission resource of one transmission block, and the packet delay budget of the service to be transmitted, an upper limit value of the first parameter corresponding to each second-type condition parameter;

and the eighth subunit is used for calculating the average value of the upper limit values of the first parameters corresponding to the second type of condition parameters respectively and determining the upper limit value of the first parameter.

As an alternative embodiment, the seventh sub-unit is further configured to:

As an alternative embodiment, the apparatus further comprises:

a fifth ratio determining unit, configured to determine a reduction ratio value b of one of the n3 second-type condition parameters according to a fifth formula; wherein the fifth formula is:

b＝|y2-x2|*d；

As an alternative embodiment, the determining unit comprises:

a ninth subunit, configured to determine, according to the service priority, a first index of a candidate lower limit value of the first parameter;

a tenth subunit, configured to subtract 1 from the first index to obtain a second index if the value of the condition parameter reaches the first threshold and a difference between the value of the condition parameter and the first threshold is greater than or equal to the second threshold;

an eleventh subunit, configured to determine that the lower limit of the first parameter is the candidate lower limit of the first parameter corresponding to the second index if the candidate lower limit of the first parameter corresponding to the second index is greater than or equal to the shortest time required for the initial retransmission resource of one transmission block; otherwise, adding 1 to the second index to obtain a first index, and determining that the lower limit value of the first parameter is the candidate lower limit value of the first parameter corresponding to the first index.

As an optional embodiment, the apparatus further comprises:

a time determining unit, configured to determine, according to a sixth formula, a shortest time q required for an initial retransmission resource of one transport block; wherein the sixth formula is:

q＝(Nmax-1)*HARQ RTT+T1+Ts；

When the value range of the termination boundary of the resource selection window is determined, the upper limit value and/or the lower limit value of the first parameter of the termination boundary of the resource selection window are determined according to at least one of the service priority of the service to be transmitted, the channel busy rate CBR, the channel occupancy rate CR and the maximum retransmission times of the hybrid automatic repeat request HARQ, so that the size of the resource selection window is more reasonable, and unnecessary time delay is reduced when the priority is high and the time delay requirement is low.

The method and the device are based on the same application concept, and because the principles of solving the problems of the method and the device are similar, the implementation of the device and the method can be mutually referred, and repeated parts are not repeated.

It should be noted that the division of the unit in the embodiment of the present application is schematic, and is only a logic function division, and there may be another division manner in actual implementation. In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented as a software functional unit and sold or used as a stand-alone product, may be stored in a processor readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed by the prior art, or all or part of the technical solution may be embodied in 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, a network device, or the like) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

As shown in fig. 4, an embodiment of the present invention further provides a terminal, which includes a memory 420, a transceiver 410, a processor 400:

a memory 420 for storing a computer program; a transceiver 410 for transceiving data under the control of the processor; a processor 400 for reading the computer program in the memory and performing the following operations:

Where in fig. 4, the bus architecture may include any number of interconnected buses and bridges, with various circuits of one or more processors, represented by processor 400, and memory, represented by memory 420, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 410 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over transmission media including wireless channels, wired channels, fiber optic cables, and the like. For different user devices, the user interface 430 may also be an interface capable of interfacing with a desired device externally, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 400 is responsible for managing the bus architecture and general processing, and the memory 420 may store data used by the processor 400 in performing operations.

Alternatively, the processor 400 may be a CPU (central processing unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or a CPLD (Complex Programmable Logic Device), and the processor may also have a multi-core architecture.

The processor 400 is used for executing any of the methods provided by the embodiments of the present application according to the obtained executable instructions by calling a computer program stored in a memory. The processor 400 and the memory 420 may also be physically separated.

As an alternative embodiment, the processor 400 is further configured to read the computer program in the memory and perform the following operations:

and determining an upper limit value corresponding to the first index value as an upper limit value of the first parameter according to the first index value.

determining a reduction ratio value of each of the n2 condition parameters;

b＝|y2-x2|*d；

q＝(Nmax-1)*HARQ RTT+T1+Ts；

wherein q is the shortest time required by the initial retransmission resource of one transmission block; nmax is the sum of the initial retransmission times of a transmission block; the HARQ RTT is the round trip time of the hybrid automatic repeat request; t1 is a boundary parameter corresponding to the starting boundary of the resource selection window; ts is the sum of the time domain lengths of the reserved resources.

Because the principle of the terminal to solve the problem provided by the embodiment of the present invention is similar to the method for processing the resource selection window in the embodiment of the present invention, the implementation of the terminal may refer to the implementation of the method, and the repeated parts are not described again.

The processor-readable storage medium may be any available medium or data storage device that can be accessed by a processor, including but not limited to magnetic memory (e.g., floppy disks, hard disks, magnetic tape, magneto-optical disks (MOs), etc.), optical memory (e.g., CDs, DVDs, BDs, HVDs, etc.), and semiconductor memory (e.g., ROMs, EPROMs, EEPROMs, non-volatile memory (NAND FLASH), Solid State Disks (SSDs)), among others.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the processor-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These processor-executable instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

1. A method for processing a resource selection window, the method comprising:

2. The method of claim 1, wherein determining the upper limit value for the first parameter based on at least one condition parameter comprises:

3. The method of claim 2, wherein determining the first index value according to the number of the condition parameters, the number of the grades of the condition parameters, and the grade value of each condition parameter comprises:

4. The method of claim 1, wherein determining the upper limit value for the first parameter based on at least one condition parameter comprises:

5. The method of claim 4, wherein determining the upper limit value of the first parameter according to the average reduction ratio of the n2 conditional parameters, the minimum time required for the initial retransmission resource of one transport block, and the packet delay budget of the service to be transmitted comprises:

wherein, T2max is the upper limit value of the first parameter; q is the shortest time required by the initial retransmission resource of one transmission block; PDB is the packet delay budget of the service to be transmitted; r is the average reduction ratio value of n2 condition parameters.

6. The method of claim 5, further comprising:

determining a reduction ratio value of each of the n2 condition parameters;

7. The method of claim 6, wherein the method comprises:

8. The method of claim 1, wherein determining the upper limit value for the first parameter based on at least one condition parameter comprises:

and calculating the average value of the upper limit values of the first parameters corresponding to the second type condition parameters respectively, and determining the upper limit value of the first parameter.

9. The method of claim 8, wherein determining the upper limit value of the first parameter corresponding to each of the n3 second-type condition parameters according to the reduced scale value of each of the second-type condition parameters, the shortest time required for the initial retransmission resource of a transport block, and the packet delay budget of the service to be transmitted comprises:

wherein, T2 max' is an upper limit value of a first parameter corresponding to a second type condition parameter; q is the shortest time required by the initial retransmission resource of one transmission block; PDB is packet delay budget of service to be transmitted; b is a reduced scale value of a second type of condition parameter.

10. The method of claim 9, further comprising:

b＝|y2-x2|*d；

11. The method of claim 1, wherein determining a lower limit value for the first parameter based on at least one condition parameter comprises:

12. The method of claim 5 or 9 or 11, further comprising:

q＝(Nmax-1)*HARQ RTT+T1+Ts；

13. An apparatus for processing a resource selection window, comprising:

14. A terminal, comprising a memory, a transceiver, a processor:

15. The terminal of claim 14, wherein the processor is further configured to read the computer program in the memory and perform the following operations:

16. The terminal of claim 15, wherein the processor is further configured to read the computer program in the memory and perform the following operations:

17. The terminal of claim 14, wherein the processor is further configured to read the computer program in the memory and perform the following operations:

18. The terminal of claim 17, wherein the processor is further configured to read the computer program in the memory and perform the following operations:

19. The terminal of claim 18, wherein the processor is further configured to read the computer program in the memory and perform the following operations:

determining a reduction ratio value of each of the n2 condition parameters;

20. The terminal of claim 19, wherein the processor is further configured to read the computer program in the memory and perform the following operations:

21. The terminal of claim 14, wherein the processor is further configured to read the computer program in the memory and perform the following operations:

22. The terminal of claim 21, wherein the processor is further configured to read the computer program in the memory and perform the following operations:

23. The terminal of claim 22, wherein the processor is further configured to read the computer program in the memory and perform the following operations:

b＝|y2-x2|*d；

wherein, b is a reduced scale value of a second type condition parameter; x2 is the value of the second type condition parameter; y2 is the threshold corresponding to the second type condition parameter; d is the coefficient corresponding to the second type condition parameter.

24. The terminal of claim 14, wherein the processor is further configured to read the computer program in the memory and perform the following operations:

25. A terminal according to claim 18 or 22 or 24, wherein the processor is further configured to read the computer program in the memory and perform the following operations:

q＝(Nmax-1)*HARQ RTT+T1+Ts；

26. A processor-readable storage medium, characterized in that the processor-readable storage medium stores a computer program for causing a processor to perform the method of any one of claims 1 to 12.