WO2018232683A1

WO2018232683A1 - Measurement gap configuration method, and unmanned aerial vehicle

Info

Publication number: WO2018232683A1
Application number: PCT/CN2017/089503
Authority: WO
Inventors: 陈颖; 马宁
Original assignee: 深圳市大疆创新科技有限公司
Priority date: 2017-06-22
Filing date: 2017-06-22
Publication date: 2018-12-27
Also published as: CN108476509A

Abstract

A measurement gap configuration method, and unmanned aerial vehicle. The configuration method comprises: selecting, according to an environment parameter, a subframe sequence from a subframe sequence set, the subframe sequence comprising at least one subframe; and determining, according to the subframe sequence, a measurement gap. Since unmanned aerial vehicles are all in different environments, a different subframe sequence is selected from the subframe sequence set for each unmanned aerial vehicle, and a different measurement gap is therefore determined according to the selected subframe sequence, thus preventing a measurement gap collision problem of unmanned aerial vehicles, and improving communication efficiency and flight safety of the unmanned aerial vehicles.

Description

Measurement interval allocation method, drone

Technical field

The present invention relates to the field of wireless communication technologies, and in particular, to a method for allocating measurement intervals and a drone.

Background technique

The measurement interval (or measurement Gap) in the existing cellular communication is a fixed period, and the base station in the cellular network performs measurement in a high-density manner, and there is basically no communication with the device but missed detection. Each drone in the same site communicates only with the matching control handle, and there is no shared base station, resulting in no same reference time between the drones. When the drone uses the common frequency band for communication, the measurement intervals of different drones may be the same, so that the monitoring behavior of these drones collides, and even all measurement intervals will collide, causing the drone monitoring failure and the frequency selection strategy to be invalid. If the problem is serious, the communication link will be broken.

Summary of the invention

The invention provides a method for distributing measurement intervals and a drone.

According to a first aspect of the present invention, there is provided a method for allocating a measurement interval, configured on a side of a drone, the method comprising:

Selecting, according to an environmental parameter, a sequence of subframes from a sequence of subframe sequences, the sequence of subframes including at least one subframe; and,

A measurement interval is determined according to the sequence of subframes.

According to a second aspect of the present invention, a method for allocating a measurement interval is provided on a mobile terminal side, the method comprising:

A measurement interval is determined according to the sequence of subframes.

According to a third aspect of the present invention, a drone is provided, the drone comprising a processor, The processor is used to:

A measurement interval is determined according to the sequence of subframes.

According to a fourth aspect of the present invention, a mobile terminal is provided, the mobile terminal comprising a processor, the processor is configured to:

A measurement interval is determined according to the sequence of subframes.

According to a fifth aspect of the present invention, there is provided a machine readable storage medium for use in a drone, the machine readable storage medium storing a plurality of computer instructions that, when executed, perform the following processing:

A measurement interval is determined according to the sequence of subframes.

According to a sixth aspect of the present invention, there is provided a machine readable storage medium for use in a machine readable storage medium, the machine readable storage medium storing a plurality of computer instructions that, when executed, perform the following processing:

A measurement interval is determined according to the sequence of subframes.

As can be seen from the technical solutions provided by the foregoing embodiments of the present invention, the present invention selects a subframe sequence from a subframe sequence set according to an environment parameter, the subframe sequence includes at least one subframe, and determines a measurement interval according to the subframe sequence. It can be seen that since each UAV is in a different environment, and then the obtained sub-frame sequence sets are different, and a sub-frame sequence is selected from the sub-frame sequence set to determine the measurement interval, the UAV measurement interval collision problem can be avoided. Improve communication efficiency and flight safety of drones.

DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention. Other drawings may also be obtained from those of ordinary skill in the art in view of the drawings.

1 is a schematic flow chart of a method for allocating measurement intervals according to an embodiment of the present invention;

2 is a schematic flowchart of a method for allocating measurement intervals according to another embodiment of the present invention;

3 is a schematic flow chart of a method for allocating measurement intervals according to still another embodiment of the present invention;

4 is a schematic flow chart of cyclic shift according to an embodiment of the present invention;

FIG. 5 is a schematic flowchart of cyclic shift according to another embodiment of the present invention; FIG.

6 is a schematic structural diagram of a drone according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

FIG. 1 is a schematic flowchart diagram of a method for allocating measurement intervals according to an embodiment of the present invention. As shown in Figure 1, the allocation method includes:

Step 101: Select, according to an environment parameter, a subframe sequence from a subframe sequence set, where the subframe sequence includes at least one subframe; and

Step 102: Determine a measurement interval according to the sequence of subframes.

The above environmental parameters include at least one of a frequency point, a time, and a protocol. Taking the drone as an example, the above frequency point refers to the frequency at which the drone currently works. The above time refers to the current time of the drone. The above agreement refers to the communication protocol adopted by the drone. Since the start-up time of each drone is different, the frequency, time, and protocol can be changed, and the acquired sub-frame sequence set is also different. In practical applications, the environmental parameters can also use the identification code of the hardware chip in each UAV. Since the identification codes of the hardware chips used by each UAV are different, the difference of the acquired sub-frame sequence sets is further expanded.

The present invention selects one subframe sequence from a subframe sequence set according to an environmental parameter, the subframe sequence includes at least one subframe; and determines a measurement interval according to the subframe sequence. It can be seen that since each UAV processes different environments, and then the obtained sub-frame sequence sets are different, and a sub-frame sequence is selected from the sub-frame sequence set to determine the measurement interval, the UAV measurement interval collision problem can be avoided. Improve communication efficiency and flight safety of drones.

In an embodiment of the present invention, the subframe sequence set may be obtained by: selecting N2 subframes from N1 subframes, the N2 subframes forming a subframe sequence; and successively selecting multiple times to obtain multiple subframe sequences, The sub-frame sequences form the above-described sub-frame sequence set. The above N1 is greater than or equal to N2, and N1 and N2 are positive integers.

In an embodiment, N2 subframes are randomly selected from N1 subframes. In another embodiment, N2 subframes are selected from the preset position in the order of N1 subframes.

It can be understood that the sequence of each subframe in the subframe sequence set in this embodiment is different. Therefore, it is necessary to ensure that at least one subframe that is different from each of the previously selected N2 subframes and the previously selected N2 subframes is different.

In the embodiment of the present invention, the subframe sequence is obtained by randomly selecting or substituting the subframe from the N1 subframes according to the environmental parameter. Since the probability of any two drones being in the same environment is very small, different environmental parameters can be ensured. The sequence of sub-frames is different, thereby reducing the probability of collisions at measurement intervals.

In another embodiment of the present invention, the foregoing subframe sequence set may be obtained by acquiring a subframe list from a specified radio frame group; the specified radio frame group includes N1 subframes, and each radio frame includes a preset number of subframes. A frame (for example, each radio frame includes 10 subframes).

In this embodiment, as shown in FIG. 2, obtaining the subframe list from the specified radio frame group may include:

Step 201: randomly select N3 radio frames from the specified radio frame group; N3 is a positive integer.

In an embodiment, as shown in FIG. 3, the radio frame in the specified radio frame group is labeled. M labels (corresponding to step 301), M is a positive integer. Then, N3 labels are randomly selected from the above M labels to obtain a label set, and N4 label sets are successively selected to obtain N4 label sets (corresponding to step 302). It can be understood that each time N3 labels are selected, at least one of the last selected N3 labels is different.

For each set of labels, the set of labels is cyclically shifted and compared to other sets of labels (corresponding to step 303). If the cyclically shifted label set overlaps with all of the label sets, the label set is rejected (corresponding to step 304). It should be noted that the culling of the label set can be eliminated after all the N4 label sets are compared. Therefore, the label set that needs to be culled is marked before culling, and then the label set containing the label is directly culled. Of course, it can also be directly culled, but the set of cyclically shifted label sets is reserved to facilitate the subsequent comparison process. It is also possible to cull the set of labels that coincide with the set of labels, retaining the set of labels. It can be understood that directly subtracting the label set during the comparison process can reduce the amount of calculation of the subsequent comparison process.

It is judged whether the cyclic shift has reached N3 times. If not, the cyclic shift is continued for the label set, and the previous step is repeated (corresponding to step 305). In this embodiment, the value of N3 is 4, and the label set {2, 4, 5, 7} is taken as an example for description. Before the label set {2, 4, 5, 7} is not cyclically shifted, as shown in Fig. 4(a), the first cyclic shift of the label set {2, 4, 5, 7} is obtained as shown in Fig. 4 ( b) the set of labels {3, 5, 6, 8} shown, if the set of labels {3, 5, 6, 8} is included in the set of N4 labels, the set of labels {2, 4, 5, 7} is deleted. Or the label set {3, 5, 6, 8}. Then continue to cyclically shift the label set {3, 5, 6, 8} (the result after the first cyclic shift), that is, perform a second cyclic shift on the label set {2, 4, 5, 7} The label set is obtained as {1, 4, 6, 7} as shown in Fig. 4(c), and then the label set {1, 4, 6, 7} is judged. And so on, until the label set {2, 4, 5, 7} loops 4 times to regain itself.

If the cyclic shift reaches N3 times, it is determined that the N4 label set comparison is completed, and the partial label set is eliminated to obtain N5 label sets. N5 is a positive integer less than or equal to N4.

Then, one of the N5 label sets is arbitrarily selected, and the corresponding radio frame in the selected label set is the selected N3 radio frames.

It can be understood that the above embodiment only describes the process of determining the N3 radio frames by cyclically shifting to the right, that is, adding 1 to the label of each radio frame to obtain the first label, and then determining the largest first label and the radio frame group. For the relationship of the number M of wireless frames, if the largest first label is greater than M, each first label pair M is used to obtain a corresponding second label, and then the second label is sequentially filled into the label set. For example, when the sub-frame sequence of FIG. 4(b) is cyclically shifted, the last label 8 is incremented by 1 and becomes the label 9. Since the label 9 is larger than the number M of radio frames (the value of M in FIG. 4 is 8), continue to The number 9 is equal to 1 and the remaining number is still itself. At this time, the label 1 and other labels are filled into the label set.

In another embodiment of the present invention, step 201 may further adopt a process of determining N3 radio frames by cyclic shift to the left, that is, subtracting 1 from each radio frame to obtain a first label, and determining whether the smallest label is 0, if it is 0. Then, the smallest first label is updated to M, and then each first label is sequentially filled into the label set. As shown in FIG. 5, taking the label set {1, 4, 6, 7} in FIG. 5(a) as an example, each label is subtracted by 1 to obtain the label set {0, 3 shown in FIG. 5(b). , 5, 6}, where the smallest label becomes (1-1) = 0, and the label is updated to M or 8 at this time, resulting in the label set {3, 5, 6, 8 shown in Figure 5 (c). }.

Step 202: Select N2 subframes from N3 radio frames to obtain a subframe sequence.

To adapt to some usage scenarios, in the embodiment of the present invention, N6 subframes are specified in each radio frame, and one or more subframes are selected from the N6 subframes, so that N2 subframes can be selected from N3 radio frames. . Wherein, the sum of N6 and N3 is greater than or equal to N2, and N6 is a positive integer. It can be seen that, in the embodiment of the present invention, by specifying N6 subframes in the radio frame, the N6 subframes or adjacent subframes between adjacent radio frames can satisfy certain conditions, thereby improving the flexibility of the allocation method provided by the present invention. , adapt to more usage scenarios.

In an embodiment of the present invention, selecting N2 subframes in step 202 to obtain a subframe sequence may include:

There are at least N7 subframes between N2 subframes; N2 is a positive integer greater than or equal to 2; N7 is a positive integer less than or equal to N1.

The above two subframes are selected subframes, and no other subframes are selected between the two subframes, and There are N7 subframes between the two subframes. Taking FIG. 4(c) as an example, if subframe 1 and subframe 4 are selected subframes, and other subframes are not selected in the middle, then subframe 1 and subframe 4 are separated by 2 (one value of N7) subframes ( Subframe 2 and subframe 3). If there is a usage scenario, the interval between two adjacent measurement intervals is required to be 2 ms, and one subframe is set to 1 ms. When subframe 1 and subframe 4 in FIG. 4(c) are used as measurement intervals, the usage scenario can be satisfied. It can be seen that the embodiment of the present invention can adapt to some preset usage scenarios and improve flexibility.

In still another embodiment of the present invention, at least two of the selected N2 subframes are fixed in a position in the corresponding radio frame. At this time, there may be other selected subframes between the at least two subframes. It can be understood that after some subframes are fixed, the measurement interval corresponding to the subframe sequence can be adapted to some preset usage scenarios, thereby improving flexibility and Adaptability.

It is to be understood that the method for allocating the measurement interval provided by the embodiment of the present invention is applicable to wireless communication. When the wireless communication mode is adopted, the specified radio frame group includes N8 radio frames, for example, the value of N8 may be 8, and each wireless The frame includes 10 subframes. N8 is a positive integer greater than or equal to N3.

Step 203, repeating the

above steps

201 and 202 until the previously selected subframe sequence is obtained (it can be understood as starting to select the second pass) to obtain a plurality of subframe sequences, the multiple subframe sequences forming a subframe sequence set; N3 is less than or Equal to N2.

The embodiment of the present invention eliminates the coincidence of the label set after the cyclic shift by the cyclic shift operation, and can avoid the situation that the subframe sequence may be the same when the start time of the drone is different or the current time of the drone is different. It can be seen that the loop shift operation of the embodiment of the invention can reduce the probability of a complete collision of the measurement interval and improve the flight safety of the drone.

The method for allocating the measurement interval provided by the embodiment of the present invention is further described below by using an embodiment in which the UAV adopts a wireless communication mode and selects 4 subframes from the 8 radio frames as the measurement interval.

In an embodiment of the invention, the set of subframe sequences preset in the drone is selected in the designated radio frame group. For example, the specified radio frame group includes 8 adjacent radio frames, and the radio frame group set is {1, 2, 3, 4, 5, 6, 7, 8}. Each radio frame includes 10 subframes, each subframe being 1 ms, that is, each radio frame is 10 ms.

Selecting four radio frames from the specified radio frame group for selecting among the four radio frames A set of labels, for example, four radio frames, is:

{1,2,3,4},{1,2,3,5},{1,2,3,6},{1,2,3,7},{1,2,3,8}, {2,3,4,5},{2,3,4,6},{2,3,4,7},{2,3,4,8},{2,3,5,6}, {2,3,5,7},{2,3,5,8},{2,3,6,7},{2,3,6,8},{2,3,7,8}, {2,3,5,6},......,{5,6,7,8}.

Since the start-up time of the drone is different, the measurement intervals of the drones using some of the above-mentioned label sets may be identical. For this, it is also necessary to filter the set of labels. In an embodiment of the invention, all of the label sets are filtered using a cyclic shift.

Taking the cyclic shift to the right as an example, the label set {1, 2, 3, 4} is selected as the reference object, and the first cyclic shift is performed to obtain the label set {2, 3, 4, 5}, due to the above label set. Including the {2, 3, 4, 5}, the label set {2, 3, 4, 5} is culled, and then the label set {1, 2, 3, 4} is continuously cyclically shifted to obtain a label set {3, 4, 5, 6}, since the {2, 3, 4, 5} is included in the above label set, the label set {3, 4, 5, 6} is culled. By analogy, the label set {1, 2, 3, 4} is cyclically shifted to the right to obtain a label set {5, 6, 7, 8}, and the label set {5, 6, 7, 8} is eliminated. Then continue to use the above process to continue the comparison with the label set {1, 2, 3, 5} as the reference object. Until all label sets have been referenced, the remaining set of labels is the final set of labels.

When 4 radio frames are selected in a specified radio frame group consisting of 8 radio frames, after filtering, a total of 10 label sets are obtained, which are:

{1,2,3,4},{1,2,3,5},{1,2,3,6},{1,2,3,7},{1,2,4,5}, {1,2,4,6},{1,2,4,7},{1,2,5,6},{1,2,5,7},{1,3,5,7}.

Then, a label set is selected from the above 10 label sets. Since each label set includes 4 radio frames, it can be seen that the purpose of selecting 4 radio frames from the specified radio frame group is achieved.

The usage scenario of an embodiment of the present invention needs to be satisfied: the measurement interval is selected from the subframes {1, 3, 5, 7} of each of the four radio frames, and the following requirements are also met:

(a) each subframe is selected from subframe 3 and subframe 7 in the radio frame;

(b) The time difference of at least two measurement intervals is always maintained at 40 ms;

(c) at least one of the cyclic shifts of any two sets of labels does not coincide;

(d) Two fixed measurement intervals in the 80 ms cycle, which are subframe 3 (subframe 3 in the first radio frame) and subframe 43 (subframe 3 in the fifth radio frame).

After the traversal search, there are 15 sub-frame sequences satisfying the above requirements (a), (b), (c), and (d), and the 15 sub-frame sequences constitute a sub-frame sequence set.

Then, the above subframe sequence set is preset to the drone.

Determining the current environmental parameters of the drone, such as at least one of the frequency, time, protocol, and identification number of the drone, and then selecting the sub-frame sequence from the set of sub-frame sequences according to the environmental parameters.

In another embodiment of the present invention, the subframe sequence may be obtained according to the environment parameter by using the following calculation formula:

Among them, A, B, C, D, and E are parameters that are indirectly generated according to parameters such as the protocol, frequency, and time of the drone.

Thereafter, the measurement interval is determined according to the selected sequence of subframes.

So far, the present invention selects a sub-frame sequence from the sub-frame sequence set according to environmental parameters of the drone, such as protocol, frequency, time, etc., and finally determines the measurement interval according to the sub-frame sequence. It can be seen that the invention can make the measurement interval of the drone related to time, improve the randomness of the measurement interval, and reduce the probability of complete collision of the measurement intervals between different drones.

It should be noted that another embodiment of the present invention further provides a method for allocating a measurement interval, where the allocation method is configured in a mobile terminal, and the mobile terminal can wirelessly communicate with the drone, and then obtain the drone through wireless communication. At least one of a protocol, a frequency point, and a time, determining an environmental parameter of the drone, and then selecting a sub-frame sequence from the sub-frame sequence set according to the environmental parameter, and finally determining a measurement interval according to the sub-frame sequence. The mobile terminal may determine its own measurement interval according to the sequence of the foregoing subframes, and may also send the measurement interval to the drone, and the drone detects the measurement interval according to the measurement interval.

It should be noted that the process of acquiring a subframe sequence set by the mobile terminal or determining the subframe sequence may be performed. For reference to the above embodiments, details are not described herein again.

An embodiment of the present invention provides a drone. As shown in FIG. 6, the drone 600 includes a processor 601, and the processor 601 is configured to:

A measurement interval is determined according to the sequence of subframes.

In an embodiment of the invention, the subframe sequence set is preset in the drone.

In an embodiment of the invention, the environmental parameter includes at least one of a frequency point, a time, and a protocol.

In an embodiment of the invention, the subframe sequence set includes 15 subframe sequences, wherein each subframe sequence includes 4 subframes.

In an embodiment of the invention, the processor is further configured to: obtain a subframe sequence according to the following steps:

Selecting N2 subframes from N1 subframes; the N2 subframes constitute a subframe sequence;

N1 is greater than or equal to N2, and N1 and N2 are positive integers.

In an embodiment of the invention, the step of selecting N2 subframes from N1 subframes, the processor is configured to:

N2 subframes are randomly selected from N1 subframes.

In an embodiment of the invention, the step of selecting N2 subframes from the N1 subframes, the processor 601 is configured to:

N2 subframes are selected from the preset position in the order of N1 subframes.

In an embodiment of the invention, the step of selecting a sequence of subframes from a sequence of subframe sequences, the processor 601 is configured to:

Obtaining a subframe sequence set in a specified radio frame group;

Each radio frame includes a preset number of subframes; the designated radio frame group includes N1 subframes.

In an embodiment of the present invention, in the step of acquiring a subframe sequence set in a specified radio frame group, the processor 601 is configured to:

N3 radio frames are randomly selected from the specified radio frame group; N3 is a positive integer;

Selecting N2 subframes from the N3 radio frames to obtain a subframe sequence;

Repeating the above steps, a plurality of the subframe sequences form a subframe sequence set; N3 is less than or equal to N2.

In an embodiment of the invention, the step of randomly selecting N3 radio frames from the specified radio frame group, the processor 601 is configured to:

Labeling the radio frames in the radio frame group to obtain M labels; M is a positive integer;

Each time, N3 labels are randomly selected from the M labels to obtain a label set, and N4 times are successively selected to obtain N4 label sets; N4 is a positive integer greater than N3, and M is the number of radio frames in the radio frame group and is positive Integer

For each label set, the label set is cyclically shifted; and compared with other label sets;

If the label set after the cyclic shift and the label set overlap with all the labels, the label set is eliminated;

Determining whether the cyclic shift reaches N3 times, if otherwise continuing to cyclically shift the label set, repeat the previous step;

If yes, it is determined that the N4 label set comparison is completed, and N5 label sets are obtained; N5 is a positive integer less than or equal to N4;

An arbitrarily selecting one of the N5 label sets determines that the corresponding radio frame in the selected label set is the selected N3 radio frames.

In an embodiment of the invention, the step of selecting N2 subframes from the N3 radio frames to obtain a subframe sequence, the processor 601 is configured to:

One or more subframes are selected from the N6 subframes specified in each of the radio frames to obtain N2 subframes; the product of N6 and N3 is greater than N2.

In an embodiment of the present invention, at least two subframes in the N2 subframes are fixed in a position in the corresponding radio frame, and N2 is a positive integer greater than or equal to 2.

In an embodiment of the invention, the specified radio frame group includes N8 radio frames, each radio frame includes ten subframes, and N8 is a positive integer greater than or equal to N3.

An embodiment of the present invention provides a mobile terminal. As shown in FIG. 7, the mobile terminal 700 includes a processor 701, where the processor 701 is configured to:

A measurement interval is determined according to the sequence of subframes.

In an embodiment of the invention, the subframe sequence set is preset in the mobile terminal side.

In an embodiment of the invention, the subframe sequence set includes 43 subframe sequences, wherein each subframe sequence includes 4 subframes.

In an embodiment of the present invention, the processor 701 is configured to perform the following steps: acquiring a sequence of subframes includes:

N1 is greater than or equal to N2, and N1 and N2 are positive integers.

In an embodiment of the invention, the step of selecting N2 subframes from the N1 subframes, the processor 701 is configured to:

N2 subframes are randomly selected from N1 subframes.

In an embodiment of the invention, the step of selecting a sequence of subframes from a sequence of subframe sequences, the processor 701 is configured to:

Obtaining a subframe sequence set in a specified radio frame group;

In an embodiment of the present invention, in the step of acquiring a subframe sequence set in a specified radio frame group, the processor 701 is configured to:

Selecting N2 subframes from the N3 radio frames to obtain a subframe sequence;

In an embodiment of the invention, the step of randomly selecting N3 radio frames from the specified radio frame group, the processor 701 is configured to:

In an embodiment of the invention, the step of selecting N2 subframes from the N3 radio frames to obtain a subframe sequence, the processor 701 is configured to:

In an embodiment of the invention, the specified radio frame group includes N8 radio frames, each radio frame includes 10 subframes, and N8 is a positive integer greater than or equal to N3.

The embodiment of the present invention further provides a machine readable storage medium, which is applied to a drone, and the machine readable storage medium stores a plurality of computer instructions, and when the computer instructions are executed, the following processing is performed:

A measurement interval is determined according to the sequence of subframes.

In an embodiment of the invention, the set of subframe sequences is preset in the machine readable storage medium.

In an embodiment of the present invention, the processor 701 is further configured to: acquire the subframe sequence according to the following steps:

N1 is greater than or equal to N2, and N1 and N2 are positive integers.

N2 subframes are randomly selected from N1 subframes.

Obtaining a subframe sequence set in a specified radio frame group;

Selecting N2 subframes from the N3 radio frames to obtain a subframe sequence;

In an embodiment of the present invention, N2 subframes are selected from the N3 radio frames to obtain one subframe. In the sequence of steps, the processor 701 is configured to:

An embodiment of the present invention further provides a machine readable storage medium, which is applied to a mobile terminal, where the machine readable storage medium stores a plurality of computer instructions, and when the computer instructions are executed, the following processing is performed:

A measurement interval is determined according to the sequence of subframes.

In an embodiment of the invention, the set of subframe sequences is preset in the machine readable storage medium side.

In an embodiment of the invention, the subframe sequence set includes 71 subframe sequences, wherein each subframe sequence includes 4 subframes.

In an embodiment of the invention, when the computer instruction is executed, the following processing is performed:

N1 is greater than or equal to N2, and N1 and N2 are positive integers.

In an embodiment of the invention, the step of selecting N2 subframes from the N1 subframes, when the computer instruction is executed, performs the following processing:

N2 subframes are randomly selected from N1 subframes.

In an embodiment of the present invention, the step of selecting a sequence of subframes from a sequence of subframe sequences, the foregoing When the computer instruction is executed, the following processing is performed:

Obtaining a subframe sequence set in a specified radio frame group;

In an embodiment of the invention, the step of acquiring a subframe sequence set in the specified radio frame group, when the computer instruction is executed, performs the following processing:

Selecting N2 subframes from the N3 radio frames to obtain a subframe sequence;

In an embodiment of the invention, the step of randomly selecting N3 radio frames from the specified radio frame group, when the computer instruction is executed, performs the following processing:

In an embodiment of the invention, the step of selecting N2 subframes from the N3 radio frames to obtain a sequence of subframes, when the computer instructions are executed, performs the following processing:

Selecting one or more subframes from the N6 subframes specified in each of the radio frames to obtain N2 subframes; the product of N6 and N3 is greater than N2.

Finally, it should be noted that the allocation method provided by the embodiment of the present invention has been described in detail in the embodiments of the unmanned aerial vehicle and the machine readable storage medium. For related parts, reference may be made to the partial description of the method embodiment. In addition, as the usage scenario changes, the allocation method provided by the embodiment of the present invention also adjusts accordingly. No detailed explanation will be given here.

It should be noted that, in this context, relational terms such as first and second are used merely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply these entities or operations. There is any such actual relationship or order between them. The terms "comprising," "comprising," or "include" or "include" are intended to include a non-exclusive inclusion, such that a process, method, article, or device that includes a plurality of elements includes not only those elements but also other items not specifically listed Elements, or elements that are inherent to such a process, method, item, or device. An element that is defined by the phrase "comprising a ..." does not exclude the presence of additional equivalent elements in the process, method, item, or device that comprises the element.

The detection apparatus and method provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are described in the present invention. The description of the above embodiments is only for helping to understand the method of the present invention. And the core idea; there is a change in the specific embodiment and the scope of application according to the idea of the present invention. In summary, the content of the present specification should not be construed as limiting the present invention. .

Claims

A method for allocating measurement intervals, characterized in that the method comprises:

Selecting, according to an environmental parameter, a sequence of subframes from a sequence of subframe sequences, the sequence of subframes including at least one subframe; and,

A measurement interval is determined according to the sequence of subframes.
The method of assigning according to claim 1, wherein said set of subframe sequences is preset in said drone.
The distribution method according to claim 1, wherein the environmental parameter comprises at least one of a frequency point, a time, and a protocol.
The allocation method according to claim 1, wherein the subframe sequence set comprises 15 subframe sequences, wherein each subframe sequence comprises 4 subframes.
The distribution method according to claim 1, wherein the sub-frame sequence is obtained by the following steps:

Selecting N2 subframes from N1 subframes; the N2 subframes constitute a subframe sequence;

N1 is greater than or equal to N2, and N1 and N2 are positive integers.
The method according to claim 5, wherein the step of selecting N2 subframes from the N1 subframes comprises:

N2 subframes are randomly selected from N1 subframes.
The method according to claim 5, wherein the step of selecting N2 subframes from the N1 subframes comprises:

N2 subframes are selected from the preset position in the order of N1 subframes.
The method according to claim 1, wherein the step of selecting a sequence of subframes from the sequence of subframe sequences comprises:

Obtaining a subframe sequence set in a specified radio frame group;

Each radio frame includes a preset number of subframes; the designated radio frame group includes N1 subframes.
The distribution method according to claim 8, wherein the specified radio frame group is obtained The steps of taking a sequence of subframe sequences include:

N3 radio frames are randomly selected from the specified radio frame group; N3 is a positive integer;

Selecting N2 subframes from the N3 radio frames to obtain a subframe sequence;

Repeating the above steps, a plurality of the subframe sequences form a subframe sequence set; N3 is less than or equal to N2.
The method according to claim 9, wherein the step of randomly selecting N3 radio frames from the specified radio frame group comprises:

Labeling the radio frames in the radio frame group to obtain M labels; M is a positive integer;

Each time, N3 labels are randomly selected from the M labels to obtain a label set, and N4 times are successively selected to obtain N4 label sets; N4 is a positive integer greater than N3, and M is the number of radio frames in the radio frame group and is positive Integer

For each label set, the label set is cyclically shifted; and compared with other label sets;

If the label set after the cyclic shift and the label set overlap with all the labels, the label set is eliminated;

Determining whether the cyclic shift reaches N3 times, if otherwise continuing to cyclically shift the label set, repeat the previous step;

If yes, it is determined that the N4 label set comparison is completed, and N5 label sets are obtained; N5 is a positive integer less than or equal to N4;

An arbitrarily selecting one of the N5 label sets determines that the corresponding radio frame in the selected label set is the selected N3 radio frames.
The method according to claim 9, wherein the step of selecting N2 subframes from the N3 radio frames to obtain a sequence of subframes comprises:

One or more subframes are selected from the N6 subframes specified in each of the radio frames to obtain N2 subframes; the product of N6 and N3 is greater than N2.
The method according to claim 9, wherein the step of selecting N2 subframes from the N3 radio frames to obtain a sequence of subframes comprises:

There are at least N7 subframes between N2 subframes; N2 is greater than or equal to 2 Positive integer; N7 is a positive integer less than or equal to N1.
The allocation method according to claim 9, wherein at least two subframes of the N2 subframes are fixed in a position in the corresponding radio frame, and N2 is a positive integer greater than or equal to 2.
The allocation method according to claim 9, wherein the specified radio frame group comprises N8 radio frames, each radio frame comprises 10 subframes, and N8 is a positive integer greater than or equal to N3.
A method for allocating measurement intervals, characterized in that the method comprises:

Selecting, according to an environmental parameter, a sequence of subframes from a sequence of subframe sequences, the sequence of subframes including at least one subframe; and,

A measurement interval is determined according to the sequence of subframes.
The allocation method according to claim 15, wherein the subframe sequence set is preset in the mobile terminal side.
The distribution method according to claim 15, wherein the environmental parameter comprises at least one of a frequency point, a time, and a protocol.
The allocation method according to claim 15, wherein the subframe sequence set comprises 15 subframe sequences, wherein each subframe sequence comprises 4 subframes.
The distribution method according to claim 15, wherein the sub-frame sequence is obtained by the following steps:

Selecting N2 subframes from N1 subframes; the N2 subframes constitute a subframe sequence;

N1 is greater than or equal to N2, and N1 and N2 are positive integers.
The allocation method according to claim 19, wherein the step of selecting N2 subframes from the N1 subframes comprises:

N2 subframes are randomly selected from N1 subframes.
The allocation method according to claim 19, wherein the step of selecting N2 subframes from the N1 subframes comprises:

N2 subframes are selected from the preset position in the order of N1 subframes.
The allocation method according to claim 15, wherein the selection from the sub-frame sequence is centralized The steps of taking a sequence of subframes, including:

Obtaining a subframe sequence set in a specified radio frame group;

Each radio frame includes a preset number of subframes; the designated radio frame group includes N1 subframes.
The allocation method according to claim 22, wherein the step of acquiring a subframe sequence set in the specified radio frame group comprises:

N3 radio frames are randomly selected from the specified radio frame group; N3 is a positive integer;

Selecting N2 subframes from the N3 radio frames to obtain a subframe sequence;

Repeating the above steps, a plurality of the subframe sequences form a subframe sequence set; N3 is less than or equal to N2.
The distribution method according to claim 23, wherein the step of randomly selecting N3 radio frames from the specified radio frame group comprises:

Labeling the radio frames in the radio frame group to obtain M labels; M is a positive integer;

Each time, N3 labels are randomly selected from the M labels to obtain a label set, and N4 times are successively selected to obtain N4 label sets; N4 is a positive integer greater than N3, and M is the number of radio frames in the radio frame group and is positive Integer

For each label set, the label set is cyclically shifted; and compared with other label sets;

If the label set after the cyclic shift and the label set overlap with all the labels, the label set is eliminated;

Determining whether the cyclic shift reaches N3 times, if otherwise continuing to cyclically shift the label set, repeat the previous step;

If yes, it is determined that the N4 label set comparison is completed, and N5 label sets are obtained; N5 is a positive integer less than or equal to N4;

An arbitrarily selecting one of the N5 label sets determines that the corresponding radio frame in the selected label set is the selected N3 radio frames.
The method according to claim 23, wherein the step of selecting N2 subframes from the N3 radio frames to obtain a sequence of subframes comprises:

Selecting one or more subframes from the N6 subframes specified in each of the radio frames to obtain N2 subframes; the product of N6 and N3 is greater than N2.
The method according to claim 23, wherein the step of selecting N2 subframes from the N3 radio frames to obtain a sequence of subframes comprises:

There are at least N7 subframes between N2 subframes; N2 is a positive integer greater than or equal to 2; N7 is a positive integer less than or equal to N1.
The allocation method according to claim 23, wherein at least two subframes of the N2 subframes are fixed in a position in the corresponding radio frame, and N2 is a positive integer greater than or equal to 2.
The allocation method according to claim 23, wherein the specified radio frame group comprises N8 radio frames, each radio frame comprises 10 subframes, and N8 is a positive integer greater than or equal to N3.
A drone, characterized in that the drone includes a processor, and the processor is configured to:

Selecting, according to an environmental parameter, a sequence of subframes from a sequence of subframe sequences, the sequence of subframes including at least one subframe; and,

A measurement interval is determined according to the sequence of subframes.
The drone according to claim 29, wherein said set of sub-frame sequences is preset in said drone.
The drone according to claim 29, wherein said environmental parameter comprises at least one of a frequency point, a time, and a protocol.
The drone according to claim 29, wherein said set of subframe sequences comprises 15 subframe sequences, wherein each subframe sequence comprises 4 subframes.
The UAV according to claim 29, wherein the processor is further configured to acquire a sequence of sub-frames according to the following steps:

Selecting N2 subframes from N1 subframes; the N2 subframes constitute a subframe sequence;

N1 is greater than or equal to N2, and N1 and N2 are positive integers.
The UAV according to claim 33, wherein the step of selecting N2 subframes from N1 subframes, the processor is configured to:

N2 subframes are randomly selected from N1 subframes.
The UAV according to claim 33, wherein the step of selecting N2 subframes from N1 subframes, the processor is configured to:

N2 subframes are selected from the preset position in the order of N1 subframes.
The drone according to claim 29, wherein the step of selecting a sequence of sub-frames from a sequence of sub-frame sequences is used for:

Obtaining a subframe sequence set in a specified radio frame group;

Each radio frame includes a preset number of subframes; the designated radio frame group includes N1 subframes.
The drone according to claim 36, wherein the step of acquiring a set of subframe sequences in the specified set of radio frames is used by:

N3 radio frames are randomly selected from the specified radio frame group; N3 is a positive integer;

Selecting N2 subframes from the N3 radio frames to obtain a subframe sequence;

Repeating the above steps, a plurality of the subframe sequences form a subframe sequence set; N3 is less than or equal to N2.
The UAV according to claim 37, wherein said step of randomly selecting N3 radio frames from said specified radio frame group, said processor is:

Labeling the radio frames in the radio frame group to obtain M labels; M is a positive integer;

Each time, N3 labels are randomly selected from the M labels to obtain a label set, and N4 times are successively selected to obtain N4 label sets; N4 is a positive integer greater than N3, and M is the number of radio frames in the radio frame group and is positive Integer

For each label set, the label set is cyclically shifted; and compared with other label sets;

If the label set after the cyclic shift and the label set overlap with all the labels, the label set is eliminated;

Determining whether the cyclic shift reaches N3 times, if otherwise continuing to cyclically shift the label set, repeat the previous step;

If yes, it is determined that the N4 label set comparison is completed, and N5 label sets are obtained; N5 is a positive integer less than or equal to N4;

An arbitrarily selecting one of the N5 label sets determines that the corresponding radio frame in the selected label set is the selected N3 radio frames.
The UAV according to claim 37, wherein the step of selecting N2 subframes from the N3 radio frames to obtain a sequence of subframes, the processor is configured to:

One or more subframes are selected from the N6 subframes specified in each of the radio frames to obtain N2 subframes; the product of N6 and N3 is greater than N2.
The UAV according to claim 37, wherein the step of selecting N2 subframes from the N3 radio frames to obtain a sequence of subframes, the processor is configured to:

There are at least N7 subframes between N2 subframes; N2 is a positive integer greater than or equal to 2; N7 is a positive integer less than or equal to N1.
The drone according to claim 37, wherein at least two of the N2 subframes are fixed in a position in the corresponding radio frame, and N2 is a positive integer greater than or equal to 2.
The drone according to claim 37, wherein said designated radio frame group comprises N8 radio frames, each radio frame comprises ten subframes, and N8 is a positive integer greater than or equal to N3.
A mobile terminal, comprising: a processor, the processor is configured to:

Selecting, according to an environmental parameter, a sequence of subframes from a sequence of subframe sequences, the sequence of subframes including at least one subframe; and,

A measurement interval is determined according to the sequence of subframes.
The mobile terminal according to claim 43, wherein the subframe sequence set is preset in the mobile terminal side.
The mobile terminal of claim 43, wherein the environmental parameter comprises at least one of a frequency point, a time, and a protocol.
The mobile terminal of claim 43, wherein the set of subframe sequences comprises 43 subframe sequences, wherein each subframe sequence comprises 4 subframes.
The mobile terminal according to claim 43, wherein the processor is configured to perform the following steps: acquiring a sequence of subframes includes:

Selecting N2 subframes from N1 subframes; the N2 subframes constitute a subframe sequence;

N1 is greater than or equal to N2, and N1 and N2 are positive integers.
The mobile terminal according to claim 47, wherein the step of selecting N2 subframes from the N1 subframes, the processor is configured to:

N2 subframes are randomly selected from N1 subframes.
The mobile terminal according to claim 47, wherein the step of selecting N2 subframes from the N1 subframes, the processor is configured to:

N2 subframes are selected from the preset position in the order of N1 subframes.
The mobile terminal according to claim 43, wherein the step of selecting a sequence of subframes from the sequence of subframe sequences is used by:

Obtaining a subframe sequence set in a specified radio frame group;

Each radio frame includes a preset number of subframes; the designated radio frame group includes N1 subframes.
The mobile terminal according to claim 50, wherein the step of acquiring a subframe sequence set in the specified radio frame group, the processor is configured to:

N3 radio frames are randomly selected from the specified radio frame group; N3 is a positive integer;

Selecting N2 subframes from the N3 radio frames to obtain a subframe sequence;

Repeating the above steps, a plurality of the subframe sequences form a subframe sequence set; N3 is less than or equal to N2.
The mobile terminal according to claim 51, wherein the step of randomly selecting N3 radio frames from the specified radio frame group, the processor is configured to:

Labeling the radio frames in the radio frame group to obtain M labels; M is a positive integer;

Each time, N3 labels are randomly selected from the M labels to obtain a label set, and N4 times are successively selected to obtain N4 label sets; N4 is a positive integer greater than N3, and M is the number of radio frames in the radio frame group and is positive Integer

For each label set, the label set is cyclically shifted; and compared with other label sets;

If the label set after the cyclic shift and the label set overlap with all the labels, the label set is eliminated;

Determining whether the cyclic shift reaches N3 times, if otherwise continuing to cyclically shift the label set, repeat the previous step;

If yes, it is determined that the N4 label set comparison is completed, and N5 label sets are obtained; N5 is a positive integer less than or equal to N4;

An arbitrarily selecting one of the N5 label sets determines that the corresponding radio frame in the selected label set is the selected N3 radio frames.
The mobile terminal according to claim 51, wherein the step of selecting N2 subframes from the N3 radio frames to obtain a sequence of subframes, the processor is configured to:

One or more subframes are selected from the N6 subframes specified in each of the radio frames to obtain N2 subframes; the product of N6 and N3 is greater than N2.
The mobile terminal according to claim 51, wherein the step of selecting N2 subframes from the N3 radio frames to obtain a sequence of subframes, the processor is configured to:

There are at least N7 subframes between N2 subframes; N2 is a positive integer greater than or equal to 2; N7 is a positive integer less than or equal to N1.
The mobile terminal according to claim 51, wherein at least two subframes of the N2 subframes are fixed in a position in the corresponding radio frame, and N2 is a positive integer greater than or equal to 2.
The mobile terminal according to claim 51, wherein said designated radio frame group comprises N8 radio frames, each radio frame comprises 10 subframes, and N8 is a positive integer greater than or equal to N3.
A machine readable storage medium, characterized by being applied to a drone, the machine readable storage medium storing a plurality of computer instructions, the computer instructions being executed as follows:

Selecting, according to an environmental parameter, a sequence of subframes from a sequence of subframe sequences, the sequence of subframes including at least one subframe; and,

A measurement interval is determined according to the sequence of subframes.
The machine readable storage medium of claim 57, wherein the set of sub-frame sequences is preset in the machine readable storage medium.
A machine readable storage medium according to claim 57, wherein said environment The parameters include at least one of a frequency point, a time, and a protocol.
The machine readable storage medium of claim 57, wherein the set of subframe sequences comprises 15 subframe sequences, wherein each subframe sequence comprises 4 subframes.
The machine readable storage medium of claim 57, wherein the processing of the computer instructions is performed as follows:

Selecting N2 subframes from N1 subframes; the N2 subframes constitute a subframe sequence;

N1 is greater than or equal to N2, and N1 and N2 are positive integers.
A machine-readable storage medium according to claim 61, wherein the step of selecting N2 subframes from N1 subframes, when said computer instructions are executed, performs the following processing:

N2 subframes are randomly selected from N1 subframes.
A machine-readable storage medium according to claim 61, wherein the step of selecting N2 subframes from N1 subframes, when said computer instructions are executed, performs the following processing:

N2 subframes are selected from the preset position in the order of N1 subframes.
A machine readable storage medium according to claim 57, wherein the step of selecting a sequence of sub-frames from a sequence of sub-frame sequences is performed as follows when said computer instructions are executed:

Obtaining a subframe sequence set in a specified radio frame group;

Each radio frame includes a preset number of subframes; the designated radio frame group includes N1 subframes.
A machine-readable storage medium according to claim 64, wherein the step of acquiring a set of sub-frame sequences in a specified set of radio frames, the computer instructions being executed, are processed as follows:

N3 radio frames are randomly selected from the specified radio frame group; N3 is a positive integer;

Selecting N2 subframes from the N3 radio frames to obtain a subframe sequence;

Repeating the above steps, a plurality of the subframe sequences form a subframe sequence set; N3 is less than or equal to N2.
A machine-readable storage medium according to claim 65, wherein the step of randomly selecting N3 radio frames from said specified set of radio frames, said computer instructions being executed as follows:

Labeling the radio frames in the radio frame group to obtain M labels; M is a positive integer;

Each time randomly selecting N3 labels from the M labels to obtain a label set, continuously selecting N4 times to obtain N4 label sets; N4 is a positive integer greater than N3, and M is the number of radio frames in the radio frame group and is a positive integer;

For each label set, the label set is cyclically shifted; and compared with other label sets;

If the label set after the cyclic shift and the label set overlap with all the labels, the label set is eliminated;

Determining whether the cyclic shift reaches N3 times, if otherwise continuing to cyclically shift the label set, repeat the previous step;

If yes, it is determined that the N4 label set comparison is completed, and N5 label sets are obtained; N5 is a positive integer less than or equal to N4;

An arbitrarily selecting one of the N5 label sets determines that the corresponding radio frame in the selected label set is the selected N3 radio frames.
The machine-readable storage medium according to claim 65, wherein the step of selecting N2 subframes from the N3 radio frames to obtain a sequence of subframes, when the computer instructions are executed, performs the following processing:

One or more subframes are selected from the N6 subframes specified in each of the radio frames to obtain N2 subframes; the product of N6 and N3 is greater than N2.
The machine-readable storage medium according to claim 65, wherein the step of selecting N2 subframes from the N3 radio frames to obtain a sequence of subframes, when the computer instructions are executed, performs the following processing:

There are at least N7 subframes between N2 subframes; N2 is a positive integer greater than or equal to 2; N7 is a positive integer less than or equal to N1.
The machine readable storage medium according to claim 65, wherein at least two subframes of the N2 subframes are fixed in a position in the corresponding radio frame, and N2 is a positive integer greater than or equal to 2.
The machine readable storage medium of claim 65, wherein the specified set of radio frames comprises N8 radio frames, each radio frame comprises ten subframes, and N8 is greater than or equal to N3 Positive integer.
A machine readable storage medium, characterized by being applied to a mobile terminal, the machine readable storage medium storing a plurality of computer instructions, the computer instructions being executed as follows:

Selecting, according to an environmental parameter, a sequence of subframes from a sequence of subframe sequences, the sequence of subframes including at least one subframe; and,

A measurement interval is determined according to the sequence of subframes.
A machine readable storage medium according to claim 71, wherein said set of sub-frame sequences is preset in said machine readable storage medium side.
The machine readable storage medium of claim 71, wherein the environmental parameter comprises at least one of a frequency point, a time, and a protocol.
The machine readable storage medium of claim 71, wherein the set of subframe sequences comprises 71 subframe sequences, wherein each subframe sequence comprises 4 subframes.
The machine-readable storage medium of claim 71, wherein the processing of the computer instructions is performed as follows:

Selecting N2 subframes from N1 subframes; the N2 subframes constitute a subframe sequence;

N1 is greater than or equal to N2, and N1 and N2 are positive integers.
A machine-readable storage medium according to claim 75, wherein the step of selecting N2 subframes from N1 subframes, when said computer instructions are executed, performs the following processing:

N2 subframes are randomly selected from N1 subframes.
A machine-readable storage medium according to claim 75, wherein the step of selecting N2 subframes from N1 subframes, when said computer instructions are executed, performs the following processing:

N2 subframes are selected from the preset position in the order of N1 subframes.
A machine-readable storage medium according to claim 71, wherein the step of selecting a sequence of sub-frames from a sequence of sub-frame sequences is performed as follows when said computer instructions are executed:

Obtaining a subframe sequence set in a specified radio frame group;

Each radio frame includes a preset number of subframes; the designated radio frame group includes N1 subframes.
A machine-readable storage medium according to claim 78, wherein the step of acquiring a set of sub-frame sequences in a specified set of radio frames, the computer instructions being executed, are processed as follows:

N3 radio frames are randomly selected from the specified radio frame group; N3 is a positive integer;

Selecting N2 subframes from the N3 radio frames to obtain a subframe sequence;

Repeating the above steps, a plurality of the subframe sequences form a subframe sequence set; N3 is less than or equal to N2.
A machine-readable storage medium according to claim 79, wherein the step of randomly selecting N3 radio frames from said specified set of radio frames, said computer instructions being executed as follows:

Labeling the radio frames in the radio frame group to obtain M labels; M is a positive integer;

Each time, N3 labels are randomly selected from the M labels to obtain a label set, and N4 times are successively selected to obtain N4 label sets; N4 is a positive integer greater than N3, and M is the number of radio frames in the radio frame group and is positive Integer

For each label set, the label set is cyclically shifted; and compared with other label sets;

If the label set after the cyclic shift and the label set overlap with all the labels, the label set is eliminated;

Determining whether the cyclic shift reaches N3 times, if otherwise continuing to cyclically shift the label set, repeat the previous step;

If yes, it is determined that the N4 label set comparison is completed, and N5 label sets are obtained; N5 is a positive integer less than or equal to N4;

An arbitrarily selecting one of the N5 label sets determines that the corresponding radio frame in the selected label set is the selected N3 radio frames.
The machine-readable storage medium according to claim 79, wherein the step of selecting N2 subframes from the N3 radio frames to obtain a sequence of subframes, when the computer instructions are executed, performs the following processing:

One or more subframes are selected from the N6 subframes specified in each of the radio frames to obtain N2 subframes; the product of N6 and N3 is greater than N2.
The machine-readable storage medium according to claim 79, wherein the step of selecting N2 subframes from the N3 radio frames to obtain a sequence of subframes, when the computer instructions are executed, performs the following processing:

There are at least N7 subframes between N2 subframes; N2 is a positive integer greater than or equal to 2; N7 is a positive integer less than or equal to N1.
The machine readable storage medium according to claim 79, wherein at least two subframes of the N2 subframes are fixed in a position in the corresponding radio frame, and N2 is a positive integer greater than or equal to 2.
The machine readable storage medium of claim 79, wherein the specified set of radio frames comprises N8 radio frames, each radio frame comprises 10 subframes, and N8 is a positive integer greater than or equal to N3.