CN110519854B - Uplink frequency selection scheduling method and device, electronic equipment and storage medium - Google Patents
Uplink frequency selection scheduling method and device, electronic equipment and storage medium Download PDFInfo
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- CN110519854B CN110519854B CN201810487507.2A CN201810487507A CN110519854B CN 110519854 B CN110519854 B CN 110519854B CN 201810487507 A CN201810487507 A CN 201810487507A CN 110519854 B CN110519854 B CN 110519854B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/26—Resource reservation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
- H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
Abstract
The embodiment of the invention provides an uplink frequency selection scheduling method, an uplink frequency selection scheduling device, electronic equipment and a storage medium, wherein the method comprises the following steps: acquiring the number of RB (resource block) required to be distributed of User Equipment (UE), and determining a reserved scheduling RB section corresponding to an uplink big data packet service in an uplink bandwidth when the current base station is detected to have the uplink big data packet service; acquiring at least one continuously available frequency selection RB section from the uplink bandwidth according to the number of the required distributed RBs, wherein the number of RBs included in the frequency selection RB section is the number of the required distributed RBs; and selecting a target frequency selection RB section which is farthest away from the reserved scheduling RB section from the at least one continuously available frequency selection RB section, and performing uplink frequency selection scheduling through the target frequency selection RB section. The embodiment of the invention improves the uplink scheduling efficiency.
Description
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to an uplink frequency selection scheduling method, an uplink frequency selection scheduling device, electronic equipment and a storage medium.
Background
With the deep construction of 2G, 3G and 4G networks, the network structure is increasingly complex, and users are also increasingly growing. At this time, various signal sources may appear in the network, and when a non-network service signal falls into a Long Term Evolution (LTE) reception zone, uplink interference of the network may be caused. Typical uplink interference in LTE networks includes intra-system interference (e.g., frequency Division Duplex (FDD) intermodulation interference, time Division Duplex (TDD) super-far interference, GPS out-of-sync interference, timeslot configuration class interference, etc.), and 2/3G inter-system interference (e.g., intermodulation, spurs, and jammers), and external interference. Uplink interference is a ubiquitous problem of an LTE network, and the interference problem may cause problems of user experience deterioration, rate reduction, even access difficulty, call drop and the like.
In the daily network optimization work of an operator, developing interference elimination and frequency cleaning is an important work, for example, the interference between systems is solved by engineering methods (for example, methods of adding a filter, increasing isolation and the like) and methods of frequency sweeping for eliminating an interference source, turning off and the like. However, these operations have problems of high cost, long cycle, and difficulty in implementation. In addition, it is difficult to solve the interference between different users, accidental narrowband interference, and the like by the above means. In contrast, the LTE system introduces a frequency selective scheduling algorithm in the uplink, and by using the characteristics that external interference and interference between users are different, and interference on different frequencies in a frequency domain is different, in each uplink scheduling period, allocates a time-frequency domain resource with the best sub-band channel quality to each user, thereby improving the uplink performance of the system and user perception.
However, the uplink of the LTE system adopts Single-carrier Frequency-Division Multiple Access (SC-FDMA), that is, a Single user must use continuous RBs for scheduling, and although the existing uplink Frequency selection scheduling algorithm can effectively improve the influence of interference on the user uplink service perception, the allocation of user uplink Resource Blocks (RBs) is relatively scattered, which causes that the uplink service cannot easily acquire sufficient continuous RBs, thereby affecting the uplink scheduling efficiency of the system.
In summary, the problem of low scheduling efficiency exists in the prior art when uplink frequency selection scheduling is performed.
Disclosure of Invention
The embodiment of the invention provides an uplink frequency selection scheduling method, an uplink frequency selection scheduling device, electronic equipment and a storage medium, and aims to solve the problem of low scheduling efficiency in uplink frequency selection scheduling in the prior art.
In view of the foregoing problems, in a first aspect, an embodiment of the present invention provides a method for uplink frequency selective scheduling, where the method includes:
acquiring the number of Resource Blocks (RBs) required to be allocated by User Equipment (UE), and determining a reserved scheduling RB section corresponding to an uplink big data packet service in an uplink bandwidth when the current base station is detected to have the uplink big data packet service;
acquiring at least one continuously available frequency selection RB section from the uplink bandwidth according to the number of the RBs required to be allocated, wherein the number of the RBs included in the frequency selection RB section is the number of the RBs required to be allocated;
and selecting a target frequency selection RB section which is farthest from the reserved scheduling RB section from the at least one continuously available frequency selection RB section, and performing uplink frequency selection scheduling through the target frequency selection RB section.
In a second aspect, an embodiment of the present invention provides an uplink frequency selective scheduling apparatus, where the apparatus includes:
the first determining module is used for acquiring the number of Resource Blocks (RBs) required to be allocated by User Equipment (UE), and determining a reserved scheduling RB section corresponding to an uplink big data packet service in an uplink bandwidth when the current base station is detected to have the uplink big data packet service;
a first obtaining module, configured to obtain at least one continuously available frequency selection RB segment from the uplink bandwidth according to the number of RBs to be allocated, where the number of RBs included in the frequency selection RB segment is the number of RBs to be allocated;
and the second acquisition module is used for selecting a target frequency selection RB section which is farthest from the reserved scheduling RB section from the at least one continuously available frequency selection RB section and performing uplink frequency selection scheduling through the target frequency selection RB section.
In a third aspect, an embodiment of the present invention provides an electronic device, which includes a memory, a processor, and a computer program that is stored in the memory and is executable on the processor, where the processor implements the steps of the uplink frequency selective scheduling method when executing the computer program.
In a fourth aspect, an embodiment of the present invention provides a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the uplink frequency selective scheduling method.
According to the uplink frequency selection scheduling method, the device, the electronic equipment and the storage medium provided by the embodiment of the invention, when the uplink big data packet service of the current base station is detected, the reserved scheduling RB section corresponding to the uplink big data packet service in the uplink bandwidth is determined, and after at least one continuously available frequency selection RB section is obtained from the uplink bandwidth according to the acquired required distributed RB number of the UE, the target frequency selection RB section which is farthest away from the reserved scheduling RB section is selected from the at least one continuously available frequency selection RB section, and then uplink frequency selection scheduling is carried out through the target frequency selection RB section, so that when the uplink big data packet service exists in the current base station, the UE can carry out uplink frequency selection scheduling through the target frequency selection RB section which is farthest away from the reserved scheduling RB section corresponding to the uplink big data packet service, the UE can avoid the reserved scheduling RB section to the maximum extent, uplink scheduling is carried out through the target RB section, the influence on the user rate of the big data packet service can be reduced to the maximum while the scheduling efficiency of the UE is improved, the uplink frequency selection scheduling interference of the user is reduced, and the uplink scheduling efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a flowchart illustrating steps of an uplink frequency selective scheduling method according to an embodiment of the present invention;
fig. 2 is a block diagram of an uplink frequency selective scheduling apparatus according to an embodiment of the present invention;
fig. 3 shows a block diagram of the electronic device in the embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, a flowchart of steps of an uplink frequency selective scheduling method in an embodiment of the present invention is shown, where the method includes the following steps:
step 101: acquiring the number of RB (resource block) required to be allocated to User Equipment (UE), and determining a reserved scheduling RB section corresponding to an uplink big data packet service in an uplink bandwidth when detecting that the uplink big data packet service exists in a current base station.
In this step, specifically, when acquiring the number of RBs to be allocated by the UE (for short, UE), the base station may map to obtain a target uplink interference noise requirement required by the UE according to uplink signal to interference plus noise ratio (SINR) information of the UE and a target block error rate (BLER) value, and then map to obtain the number of RBs to be allocated by the UE according to the target uplink interference noise requirement required by the UE and an uplink transmission amount of the UE. In this way, the number of RBs required to be allocated to the UE is obtained, so that the number of RBs required for uplink frequency selection scheduling can be determined according to the number of RBs required to be allocated to the UE.
In addition, specifically, in this step, it is further required to detect whether the uplink big data packet service exists in the current base station, and when it is detected that the uplink big data packet service exists in the current base station, determine a reserved scheduling RB segment corresponding to the uplink big data packet service in the uplink bandwidth, so that when performing uplink frequency selective scheduling on the UE, the influence on the uplink big data packet service user can be reduced by avoiding the preset reserved scheduling RB segment corresponding to the uplink big data packet service, thereby ensuring the uplink scheduling efficiency of the uplink big data packet service user.
Step 102: and acquiring at least one continuously available frequency selection RB section from the uplink bandwidth according to the number of the required distributed RBs.
In this step, specifically, after the number of RBs required to be allocated to the UE is obtained, at least one continuously available frequency selection RB segment may be obtained from the uplink bandwidth according to the number of RBs required to be allocated to the UE. Specifically, the number of RBs included in the frequency selection RB segment is the number of RBs to be allocated. Therefore, at least one continuously available frequency selection RB section is obtained from the uplink bandwidth, the number of RBs included in the frequency selection RB section is the number of RBs required to be allocated by the UE, the continuity of uplink RB allocation is guaranteed, and the scheduling efficiency of the UE in uplink frequency selection scheduling is improved.
Step 103: and selecting a target frequency selection RB section which is farthest away from the reserved scheduling RB section from at least one continuously available frequency selection RB section, and performing uplink frequency selection scheduling through the target frequency selection RB section.
In this step, specifically, after determining the reserved scheduling RB segment corresponding to the uplink big data packet service in the uplink bandwidth, the target frequency selection RB segment having the farthest distance from the reserved scheduling RB segment may be selected from the at least one continuously available frequency selection RB segment obtained in step 102, and then uplink frequency selection scheduling is performed on the UE through the target frequency selection RB segment.
In this way, uplink frequency selection scheduling is performed on the UE through the target frequency selection RB section farthest from the reserved scheduling RB section, so that the UE can avoid the reserved scheduling RB section corresponding to the uplink big data packet service to the maximum extent, uplink scheduling is performed through other continuously available target RB sections, the rate influence on the big data service user can be reduced to the maximum extent while the scheduling efficiency of the UE is improved, the uplink frequency selection scheduling efficiency of the big data packet service user is ensured, uplink interference is reduced, and the uplink frequency selection scheduling efficiency of all users is improved while the uplink interference is reduced.
The embodiment of the invention determines the reserved scheduling RB section corresponding to the uplink big data packet service in the uplink bandwidth when detecting that the uplink big data packet service exists in the current base station, acquires at least one continuously available frequency selection RB section from the uplink bandwidth according to the acquired number of the RBs required to be allocated by the UE, and then selects the target frequency selection RB section which is farthest away from the reserved scheduling RB section from the at least one continuously available frequency selection RB section, and performs uplink frequency selection scheduling through the target frequency selection RB section, so that when the uplink big data packet service exists in the current base station, the UE can perform uplink frequency selection scheduling through the target frequency selection RB section which is farthest away from the reserved scheduling RB section corresponding to the uplink big data packet service, the UE can avoid the reserved scheduling section corresponding to the uplink big data packet service to the maximum extent, perform uplink scheduling through other continuously available target RB sections, thereby improving the scheduling efficiency of the UE, reducing the influence on the user rate of the big data service to the maximum extent, ensuring the uplink frequency selection scheduling efficiency of the big data packet service user, reducing the uplink interference, and improving the uplink scheduling efficiency at the uplink frequency selection efficiency.
Further, in order to reduce the influence of uplink frequency selective scheduling on a large data packet service user, when it is detected that a large data packet service user exists in the current base station, a reserved scheduling RB segment corresponding to the uplink large data packet service may be set in the uplink bandwidth, where the reserved scheduling RB segment is an RB segment used by the large data packet service user, that is, other UEs entering frequency selective scheduling cannot use the reserved scheduling RB segment. The following describes how to determine that the uplink big data packet service exists in the current base station and how to determine the reserved scheduling RB segment corresponding to the uplink big data packet service in the uplink bandwidth.
In the step of detecting that the uplink big data packet service exists in the current base station, the uplink big data packet service existing in the current base station can be determined in a plurality of ways as follows:
the method comprises the steps of firstly, counting the data number of uplink data to be scheduled, which is larger than a first preset threshold value, in the uplink data to be scheduled, which are acquired every other preset time length in a preset period, and determining that the current base station has uplink big data packet service when the data number is detected to be larger than the product of the total acquisition times of the uplink data to be scheduled in the preset period and the first preset proportion threshold value.
Specifically, the preset period may be 1s, the total collection time may be 20 times, each time lasts for 50ms, at this time, the amount of the uplink data to be scheduled may be counted at one time point of the 50ms that lasts each time, and the preset duration of the interval is also 50ms.
In addition, specifically, it should be noted that both the first preset threshold and the first preset proportion threshold may be set according to actual requirements, and the first preset threshold and the first preset proportion threshold are not specifically limited herein. The above-described case will be exemplified below.
For example, the uplink data volume to be scheduled is acquired every 50ms within 1s, that is, the total acquisition times is 20 times, and 20 uplink data volumes to be scheduled are acquired. At this time, assuming that a total number of the acquired 20 uplink data volumes to be scheduled is greater than a first preset threshold, and the product of the total acquisition times and the first preset proportional threshold is B, if a is greater than B, it is determined that the current base station has an uplink big data packet service.
In this way, the uplink data volume to be scheduled can reflect the size of the data packet, that is, the more the number of the acquired uplink data volume to be scheduled exceeding the preset threshold is, the larger the data packet is, so that whether the uplink big data packet service exists in the current base station can be determined by the number of the acquired uplink data volume to be scheduled larger than the first preset threshold in the preset period, and the accuracy of the result of whether the uplink big data packet service exists is ensured.
And secondly, when detecting that the total uplink scheduling times of the UE in the preset period is greater than the product of the total uplink subframe number and a second preset proportion threshold, determining that the current base station has uplink big data packet service.
Specifically, the preset period may be 1s. The uplink total subframe number is the uplink total subframe number in a preset period.
In addition, specifically, it should be noted that the second preset proportion threshold may be set according to an actual requirement, and a specific numerical value of the second preset proportion threshold is not specifically limited herein.
Therefore, the total uplink scheduling times of the UE in the preset period can reflect the size of the data packet, that is, the larger the data packet is, the more the total uplink scheduling times are required, so that whether the uplink big data packet service exists in the current base station can be determined according to the total uplink scheduling times of the UE in the preset period, and the accuracy of the result of determining whether the uplink big data packet service exists is ensured.
Thirdly, when detecting that the flow value of an uplink radio link control (RLC for short) layer is larger than a second preset threshold value, determining that the current base station has an uplink big data packet service.
Specifically, it should be noted that the second preset threshold may be set according to actual requirements, and a specific value of the second preset threshold is not specifically limited herein.
Therefore, the flow value of the RLC layer can reflect the size of the data packet, namely the larger the flow value is, the larger the data packet is, so that whether the uplink big data packet service exists in the current base station can be determined through the flow value of the RLC layer, and the accuracy of the result of whether the uplink big data packet service exists is ensured.
In this way, in this embodiment, whether the current base station has an uplink big data packet service is determined by the number of data of the uplink data volume to be scheduled, which is greater than the first preset threshold, collected in the preset period, the total uplink scheduling times of the UE in the preset period, or the flow value of the uplink RLC layer, so that the accuracy of the result of determining whether the uplink big data packet service exists is ensured.
In addition, when determining a reserved scheduling RB segment corresponding to the uplink big data packet service in the uplink bandwidth, the uplink interference noise value of each RB in a preset time period counted by the current base station every preset time length in a preset period may be obtained; then according to the uplink interference noise value of each RB, acquiring a target RB of which the uplink interference noise value is smaller than a third preset threshold value; and then when continuous target RBs exist and the number of the continuous target RBs is larger than a fourth preset threshold value, determining the continuous target RBs as the reserved scheduling RB section.
Specifically, the preset period may be 1s, the preset duration of the interval may be 40ms, and the preset time period may be 10ms radio frame, that is, the current base station may sample 20 times in the preset period 1s, and count the uplink interference noise value of each RB in the 10ms radio frame every 40 ms. At this time, whether the uplink interference noise value of the RB is smaller than a third preset threshold may be detected, and if the uplink interference noise value of the RB is smaller than the third preset threshold, it is determined that the target RB with the interference noise value lower than the third preset threshold is acquired. In this way, after the target RB is determined, if it is detected that there is a continuous target RB and the number of the continuous target RBs is greater than the fourth preset threshold, the continuous target RB is determined as a reserved scheduling RB segment corresponding to the uplink big packet service.
In addition, it should be specifically noted herein that the preset duration and the preset time period may be set according to an actual situation, and specific values of the preset duration and the preset time period are not specifically limited herein, and the setting of the third preset threshold and the fourth preset threshold may also be set according to the actual situation, and specific values of the third preset threshold and the fourth preset threshold are not specifically limited herein.
In this way, the RBs with the uplink interference noise value smaller than the third preset threshold are used as the target RBs, and the continuous target RBs with the number larger than the fourth preset threshold are determined as the reserved scheduling RB sections, so that each RB in the reserved scheduling RB sections meets the uplink interference noise requirement, the length of the reserved scheduling RB sections can meet the uplink big data packet service requirement, the availability of the determined reserved scheduling RB sections corresponding to the uplink big data packet service is ensured, and the scheduling efficiency of the uplink big data packet service is ensured.
In addition, specifically, after determining the reserved scheduling RB segment corresponding to the uplink big data packet service in the uplink bandwidth, if the UE corresponds to the uplink big data packet service, the UE may perform uplink scheduling through the reserved scheduling RB segment, so as to ensure the scheduling efficiency of the uplink big data packet user. Of course, if the UE does not correspond to the uplink big data packet service, uplink scheduling transmission needs to be performed through other RBs except the reserved scheduling RB segment, so as to avoid the influence on the uplink big data packet service user.
Furthermore, before acquiring at least one continuously available frequency-selective RB segment from the uplink bandwidth according to the number of RBs to be allocated, the starting position of the uplink RB to be allocated by the UE may also be determined according to a physical cell identity (PCI for short) of a serving cell where the UE is located, where the starting positions of uplink frequencies of cells with different PCIs different.
Therefore, the starting position of the uplink RB required to be allocated by the UE is determined according to the PCI of the serving cell where the UE is located, the starting positions of the uplink frequencies of the cells with different PCIs are different, namely the starting positions of the uplink frequencies of the cells with different PCIs are staggered, so that the co-channel interference among users can be reduced, the RBs can be allocated to the users of different cells from the staggered starting positions of the uplink RBs, the probability that the allocated RBs are continuous RBs is increased, and the uplink scheduling efficiency is increased.
Specifically, when determining the starting position of the uplink RB to be allocated by the UE according to the PCI of the serving cell in which the UE is located, the method may include the following steps:
the method comprises the following steps of firstly, determining a target uplink bandwidth segment number corresponding to a modular ternary value of the PCI obtained through calculation according to a preset corresponding relation between the modular ternary value of the PCI and the uplink bandwidth segment number, wherein the uplink bandwidth is divided into three segments in advance.
Specifically, since the PCI ranges from 0 to 503, the modulo three (MOD 3) value of the PCI includes 3 different values. At this time, the uplink bandwidth may be divided in advance according to the number of different numerical values included in the modulo three values of the PCI, that is, the uplink bandwidth is divided into three segments in advance, and then a preset corresponding relationship between the three segments of uplink bandwidth and the modulo three values of the different PCIs is established. For example, a corresponding relationship between a modulo three value 0 of the PCI and the first segment of the uplink bandwidth 00, a corresponding relationship between a modulo three value 1 of the PCI and the second segment of the uplink bandwidth 01, and a corresponding relationship between a modulo three value 2 of the PCI and the third segment of the uplink bandwidth 03 may be established. In this way, by establishing a preset corresponding relationship between the modulo three value of the PCI and the number of uplink bandwidth segments in advance, when the modulo three value of the PCI of the UE in the serving cell is obtained by calculation, the number of uplink bandwidth segments required to be used by the UE can be determined according to the preset corresponding relationship.
For example, assuming that the PCI of the serving cell where the UE is located is 502, the modulo three value of the PCI is 1, and at this time, the number of target uplink bandwidth segments corresponding to the modulo three value of the PCI obtained through calculation may be determined to be the second segment uplink bandwidth 01 according to the corresponding relationship between the modulo three value 1 of the PCI and the second segment uplink bandwidth 01, that is, the number of target uplink bandwidth segments that the UE needs to allocate is determined to be the second segment uplink bandwidth 01.
In addition, specifically, when the uplink bandwidth is pre-divided into three segments, the difference between the numbers of RBs included in each of the three segments of uplink bandwidth is smaller than a preset value, where the preset value may be set according to a requirement, but the balance between the numbers of RBs included in each of the three segments of uplink bandwidth should be ensured, so that each segment of uplink bandwidth can meet the requirement of uplink scheduling.
And secondly, acquiring an integral value obtained by rounding the quotient of the PCI and the PCI 3, and determining the integral value as a bias value of the starting position of the uplink RB relative to the starting position of a target uplink bandwidth segment, wherein the target uplink bandwidth segment is a bandwidth segment corresponding to the target uplink bandwidth segment number.
Specifically, in this step, a specific position of the starting position of the uplink RB that the UE needs to allocate in the determined target uplink bandwidth segment needs to be determined.
Specifically, a quotient value of PCI and 3 may be calculated, then the quotient value is rounded, and a rounded integer value is obtained, at this time, the integer value may be determined as an offset value of the starting position of the uplink RB that needs to be allocated by the UE relative to the starting position of the target uplink bandwidth segment. In this way, the specific position of the uplink RB starting position to be allocated by the UE in the uplink bandwidth can be accurately determined by the determined target number of uplink bandwidth segments and the offset value of the uplink RB starting position to be allocated by the UE with respect to the starting position of the target uplink bandwidth segment.
And thirdly, calculating the sum of the RB number included in all the uplink bandwidth segments before the target uplink bandwidth segment and the offset value, and determining the RB position corresponding to the sum as the initial position of the uplink RB required to be allocated by the UE in the uplink bandwidth.
Specifically, after determining the offset value of the target uplink bandwidth segment and the start position of the uplink RB that the UE needs to allocate relative to the start position of the target uplink bandwidth segment, the sum of the number of RBs included in all uplink bandwidth segments located before the target uplink bandwidth segment and the offset value may be directly calculated, and the RB position corresponding to the sum may be determined as the start position of the uplink RB that the UE needs to allocate in the uplink bandwidth.
For example, suppose that the PCI of the serving cell where the UE is located is 97, the number of RBs included in the first segment of uplink bandwidth 00 is 33, the number of RBs included in the second segment of uplink bandwidth 01 is 34, the number of RBs included in the third segment of uplink bandwidth 02 is 33, the modulo three value of the PCI is calculated to be 1, and the quotient of the PCI and 3 is calculated to be 32, at this time, it may be determined that the target uplink bandwidth segment number corresponding to the modulo three value of the PCI is the second segment of uplink bandwidth 01 according to the corresponding relationship between the modulo three value 1 of the PCI and the second segment of uplink bandwidth 01, and the offset value of the initial position of the uplink RB from the initial position of the target uplink bandwidth segment is 32, that is, the initial position of the uplink RB is the 32 nd RB position on the second segment of uplink bandwidth 01. At this time, since the first uplink bandwidth 00 before the second uplink bandwidth 01 includes 33 RBs, it can be calculated that the initial position of the uplink RB that the UE needs to allocate in the uplink bandwidth is the 55 th RB position in the entire uplink bandwidth.
In this way, the uplink RB starting position required to be allocated by the UE is obtained through calculation, so that when the RB is allocated, allocation can be directly started from the calculated uplink RB starting position, the process that backward allocation is started from the first RB in sequence during uplink RB allocation is avoided, interference among users is reduced, the problem that uplink scheduling efficiency is affected due to over-discrete uplink RB resource allocation is avoided, and the uplink scheduling efficiency is improved while the interference among the users is reduced.
In addition, further, when at least one continuously available frequency selection RB segment is obtained from the uplink bandwidth according to the number of RBs to be allocated, sliding window search may be performed on all RB positions after the starting position of the uplink RB to be allocated by the UE, with the number of RBs to be allocated as a window length, to obtain at least one continuously available frequency selection RB segment; when the RBs included by one window length searched by the sliding window all meet the uplink interference noise requirement of the UE, recording the RBs included by the window length as frequency selection RB sections.
Specifically, after determining the starting position of the uplink RB to be allocated by the UE, the sliding window search may be directly performed on all RB positions after the starting position of the uplink RB according to the number of RBs to be allocated by the UE, and at this time, if all RBs included in one window length can meet the uplink interference noise requirement of the UE, the RBs included in the window length are recorded as frequency selection RB segments, so that at least one frequency selection RB segment is obtained by searching all RB positions after the starting position of the uplink RB.
Therefore, at least one continuously available frequency selection RB section is searched from all RB positions behind the initial position of the uplink RB required to be allocated by the UE through the sliding window instead of directly searching backwards from the first RB according to the sequence, the probability of the searched continuously available frequency selection RB section is improved while the same frequency interference among users is reduced, the problem that the uplink RB resource allocation is too discrete and the uplink scheduling efficiency is influenced is solved, and the uplink scheduling efficiency is improved.
Thus, the embodiment of the invention firstly obtains the number of RBs required to be allocated to the UE, determines the reserved scheduling RB section corresponding to the uplink big data packet service in the uplink bandwidth when detecting that the uplink big data packet service exists in the current base station, then obtains at least one continuously available frequency selection RB section from the uplink bandwidth according to the number of the RBs required to be allocated, and finally selects the target frequency selection RB section which is farthest away from the reserved scheduling RB section from the at least one continuously available frequency selection RB section, and performs uplink frequency selection scheduling through the target frequency selection RB section, so that when the uplink big data packet service exists in the current base station, the UE can perform uplink frequency selection scheduling through the target frequency selection RB section which is farthest away from the reserved scheduling RB section corresponding to the uplink big data packet service, the UE can avoid the reserved scheduling RB section to the maximum extent, perform uplink scheduling through the target RB section, thereby reducing the influence on the user rate of the big data packet service to the maximum extent while improving the scheduling efficiency of the UE, ensuring the uplink frequency selection scheduling efficiency of the user, reducing the uplink interference, and improving the uplink frequency selection efficiency at the uplink scheduling efficiency.
In addition, as shown in fig. 2, a block diagram of an uplink frequency selective scheduling apparatus in an embodiment of the present invention is shown, where the apparatus includes:
a first determining module 201, configured to obtain the number of resource blocks RB to be allocated to a user equipment UE, and determine a reserved scheduling RB segment corresponding to an uplink big data packet service in an uplink bandwidth when it is detected that the uplink big data packet service exists in a current base station;
a first obtaining module 202, configured to obtain at least one continuously available frequency selection RB segment from the uplink bandwidth according to the number of RBs to be allocated, where the number of RBs included in the frequency selection RB segment is the number of RBs to be allocated;
a second obtaining module 203, configured to select, from the at least one continuously available frequency selection RB segment, a target frequency selection RB segment that is farthest from the reserved scheduling RB segment, and perform uplink frequency selection scheduling through the target frequency selection RB segment.
The uplink frequency selection scheduling apparatus provided in this embodiment obtains the number of RBs to be allocated to the UE through the first determining module 201, determines the reserved scheduling RB segment corresponding to the uplink big data packet service in the uplink bandwidth when detecting that the uplink big data packet service exists in the current base station, obtains at least one continuously available frequency selection RB segment from the uplink bandwidth through the first obtaining module 202 according to the number of RBs to be allocated, and finally selects the target frequency selection RB segment farthest from the reserved scheduling RB segment from the at least one continuously available frequency selection RB segment through the second obtaining module 203, and performs uplink frequency selection scheduling through the target frequency selection RB segment, so that the UE can maximally avoid the reserved scheduling RB segment and perform uplink scheduling through the target RB segment, thereby improving the UE scheduling efficiency and simultaneously maximally reducing the influence on the user rate of the big data service, thereby ensuring the uplink frequency selection scheduling efficiency of the big data packet service user, and reducing uplink interference, and improving the uplink frequency selection scheduling efficiency of all users.
Optionally, the first determining module 201 includes:
the first determining unit is used for counting the data number of the uplink data volume to be scheduled, which is greater than a first preset threshold value, in the uplink data volume to be scheduled collected every preset time length in a preset period, and determining that the current base station has an uplink big data packet service when detecting that the data number is greater than the product of the total collection times of the uplink data volume to be scheduled in the preset period and the first preset proportion threshold value; alternatively, the first and second electrodes may be,
a second determining unit, configured to determine that an uplink big data packet service exists in the current base station when it is detected that the total uplink scheduling frequency of the UE in the preset period is greater than a product of the total uplink subframe number and a second preset proportion threshold; alternatively, the first and second electrodes may be,
and the third determining unit is used for determining that the current base station has the uplink big data packet service when detecting that the flow value of the uplink Radio Link Control (RLC) layer is greater than a second preset threshold value.
Optionally, the first determining module 201 includes:
the first obtaining unit is used for obtaining an uplink interference noise value of each RB in a preset time period counted by every preset time length in a preset period of a current base station;
a second obtaining unit, configured to obtain, according to the uplink interference noise value of each RB, a target RB whose uplink interference noise value is smaller than a third preset threshold;
and a fourth determining unit, configured to determine, when there are consecutive target RBs and the number of consecutive target RBs is greater than a fourth preset threshold, the consecutive target RBs as the reserved scheduling RB segment.
Optionally, the apparatus further comprises:
and the second determining module is used for determining the initial position of the uplink RB required to be allocated by the UE according to the Physical Cell Identifier (PCI) of the service cell in which the UE is positioned, wherein the initial allocation positions of the uplink frequency of the cells with different PCIs are different.
Optionally, the second determining module includes:
a fifth determining unit, configured to determine, according to a preset correspondence between a modulo three value of the PCI and a number of uplink bandwidth segments, a target number of uplink bandwidth segments corresponding to the computed modulo three value of the PCI, where the uplink bandwidth is divided into three segments in advance;
a sixth determining unit, configured to obtain an integer value obtained by rounding up the quotient of the PCI and 3, and determine the integer value as a bias value of the starting position of the uplink RB relative to a starting position of a target uplink bandwidth segment, where the target uplink bandwidth segment is a bandwidth segment corresponding to the target uplink bandwidth segment number;
and a seventh determining unit, configured to calculate a sum of the number of RBs included in all uplink bandwidth segments before the target uplink bandwidth segment and the offset value, and determine an RB position corresponding to the sum as an uplink RB starting position that the UE needs to allocate in the uplink bandwidth.
Optionally, the first obtaining module 202 is configured to perform sliding window search on all RB positions after the uplink RB starting position that the UE needs to allocate, by taking the number of RBs to be allocated as a window length, to obtain at least one continuously available frequency-selective RB segment; when the RBs included by one window length searched by the sliding window all meet the uplink interference noise requirement of the UE, recording the RBs included by the window length as frequency selection RB sections.
The uplink frequency selection scheduling device provided by the embodiment of the invention determines the reserved scheduling RB section corresponding to the uplink big data packet service in the uplink bandwidth by acquiring the number of the RBs required to be allocated by the UE, then acquires at least one continuously available frequency selection RB section from the uplink bandwidth according to the number of the RBs required to be allocated, and finally selects the target frequency selection RB section which is farthest away from the reserved scheduling RB section from the at least one continuously available frequency selection RB section, and performs uplink frequency selection scheduling through the target frequency selection RB section, so that when the uplink big data packet service exists in the current base station, the UE can perform uplink frequency selection scheduling through the target frequency selection RB which is farthest away from the reserved scheduling RB section corresponding to the uplink big data packet service, the UE can avoid the reserved scheduling RB section to the maximum extent, perform uplink scheduling through the target frequency selection RB section, thereby improving the scheduling efficiency of the UE, reducing the influence on the user rate of the big data service to the maximum extent, ensuring the uplink frequency selection scheduling efficiency of the big data packet service user, reducing the uplink frequency selection interference, and improving the uplink scheduling efficiency at the uplink frequency selection efficiency.
It should be noted that, in the embodiment of the present invention, the related functional modules may be implemented by a hardware processor (hardware processor), and the same technical effect can be achieved, which is not described herein again.
In yet another embodiment of the present invention, an electronic device is provided, as shown in fig. 3, which includes a memory (memory) 301, a processor (processor) 302, and a computer program stored on the memory 301 and executable on the processor 302. The memory 301 and the processor 302 complete communication with each other through the bus 303. The processor 302 is configured to call program instructions in the memory 301 to perform the following method: acquiring the number of Resource Blocks (RBs) required to be allocated by User Equipment (UE), and determining a reserved scheduling RB section corresponding to an uplink big data packet service in an uplink bandwidth when the current base station is detected to have the uplink big data packet service; acquiring at least one continuously available frequency selection RB section from the uplink bandwidth according to the number of the required distributed RBs, wherein the number of RBs included in the frequency selection RB section is the number of the required distributed RBs; and selecting a target frequency selection RB section which is farthest from the reserved scheduling RB section from the at least one continuously available frequency selection RB section, and performing uplink frequency selection scheduling through the target frequency selection RB section.
The electronic device provided by the embodiment of the invention can execute the specific steps in the uplink frequency selection scheduling method, and can achieve the same technical effect, and the specific description of the steps is not repeated here.
Further, the program instructions in the memory 301 may be implemented in the form of software functional units and stored in a computer readable storage medium when the program instructions are sold or used as a stand-alone product. Based on such understanding, the technical solution of the present invention or a part thereof which substantially contributes to the prior art may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In a further embodiment of the invention, a non-transitory computer readable storage medium is provided, having stored thereon a computer program which, when executed by a processor, is operative to perform the method of: acquiring the number of RB (resource block) required to be distributed of User Equipment (UE), and determining a reserved scheduling RB section corresponding to an uplink big data packet service in an uplink bandwidth when the current base station is detected to have the uplink big data packet service; acquiring at least one continuously available frequency selection RB section from the uplink bandwidth according to the number of the required distributed RBs, wherein the number of RBs included in the frequency selection RB section is the number of the required distributed RBs; and selecting a target frequency selection RB section which is farthest from the reserved scheduling RB section from the at least one continuously available frequency selection RB section, and performing uplink frequency selection scheduling through the target frequency selection RB section.
The non-transitory computer-readable storage medium provided in the embodiment of the present invention can perform specific steps in the uplink frequency selective scheduling method, and can achieve the same technical effects, which are not described in detail herein.
In yet another embodiment of the present invention, a computer program product is provided, the computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions that when executed by a computer perform the method of: acquiring the number of RB (resource block) required to be distributed of User Equipment (UE), and determining a reserved scheduling RB section corresponding to an uplink big data packet service in an uplink bandwidth when the current base station is detected to have the uplink big data packet service; acquiring at least one continuously available frequency selection RB section from the uplink bandwidth according to the number of the required distributed RBs, wherein the number of RBs included in the frequency selection RB section is the number of the required distributed RBs; and selecting a target frequency selection RB section which is farthest from the reserved scheduling RB section from the at least one continuously available frequency selection RB section, and performing uplink frequency selection scheduling through the target frequency selection RB section.
The computer program product provided by the embodiment of the present invention can execute the specific steps in the uplink frequency selection scheduling method, and can achieve the same technical effect, which is not described in detail herein.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment may be implemented by software plus a necessary general hardware platform, and may also be implemented by hardware. Based on the understanding, the above technical solutions substantially or otherwise contributing to the prior art may be embodied in the form of a software product, which may be stored in a computer-readable storage medium, such as ROM/RAM, magnetic disk, optical disk, etc., and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method according to the various embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. An uplink frequency selection scheduling method, characterized in that the method comprises:
acquiring the number of RB (resource block) required to be distributed of User Equipment (UE), and determining a reserved scheduling RB section corresponding to an uplink big data packet service in an uplink bandwidth when the current base station is detected to have the uplink big data packet service;
acquiring at least one continuously available frequency selection RB section from the uplink bandwidth according to the number of the required distributed RBs, wherein the number of RBs included in the frequency selection RB section is the number of the required distributed RBs;
selecting a target frequency selection RB section which is farthest from the reserved scheduling RB section from the at least one continuously available frequency selection RB section, and performing uplink frequency selection scheduling through the target frequency selection RB section;
the determining the reserved scheduling RB section corresponding to the uplink big data packet service in the uplink bandwidth comprises the following steps:
acquiring an uplink interference noise value of each RB in a preset time period counted every preset time length in a preset period by a current base station;
acquiring a target RB of which the uplink interference noise value is smaller than a third preset threshold value according to the uplink interference noise value of each RB;
and when the continuous target RB exists and the number of the continuous target RB is greater than a fourth preset threshold value, determining the continuous target RB as the reserved scheduling RB section.
2. The method of claim 1, wherein the detecting that the uplink big data packet service exists in the current base station comprises:
counting the number of data of uplink data to be scheduled, which is larger than a first preset threshold value, in the uplink data to be scheduled, which are acquired every other preset time length in a preset period, and determining that the current base station has an uplink big data packet service when detecting that the number of data is larger than the product of the total acquisition times of the uplink data to be scheduled in the preset period and the first preset proportional threshold value; alternatively, the first and second electrodes may be,
when detecting that the total uplink scheduling times of the UE in a preset period is greater than the product of the total uplink subframe number and a second preset proportion threshold, determining that the current base station has an uplink big data packet service; alternatively, the first and second liquid crystal display panels may be,
and when detecting that the flow value of the RLC layer is controlled by the uplink radio link is larger than a second preset threshold value, determining that the current base station has the uplink big data packet service.
3. The method of claim 1, wherein before the obtaining at least one continuously available RB segment of frequency selection from the uplink bandwidth according to the required number of allocated RBs, the method further comprises:
and determining the initial position of the uplink RB required to be allocated by the UE according to the Physical Cell Identity (PCI) of the serving cell in which the UE is located, wherein the initial allocation positions of uplink frequencies of cells with different PCIs are different.
4. The method of claim 3, wherein the determining the starting position of the uplink RB required to be allocated by the UE according to the Physical Cell Identity (PCI) of the serving cell where the UE is located comprises:
determining a target uplink bandwidth segment number corresponding to the calculated modular ternary value of the PCI according to a preset corresponding relation between the modular ternary value of the PCI and the uplink bandwidth segment number, wherein the uplink bandwidth is divided into three segments in advance;
acquiring an integral value obtained by rounding up the quotient of the PCI and the PCI 3, and determining the integral value as a bias value of the starting position of the uplink RB relative to the starting position of a target uplink bandwidth segment, wherein the target uplink bandwidth segment is a bandwidth segment corresponding to the target uplink bandwidth segment number;
and calculating the sum of the RB number and the offset value of all uplink bandwidth segments positioned in front of the target uplink bandwidth segment, and determining the RB position corresponding to the sum as the initial position of the uplink RB required to be allocated by the UE in the uplink bandwidth.
5. The method as claimed in claim 3, wherein said obtaining at least one continuously available RB segment of frequency selection from the uplink bandwidth according to the required number of allocated RBs comprises:
performing sliding window search on all RB positions behind the initial position of the uplink RB required to be allocated by the UE by taking the number of the RB required to be allocated as a window length to obtain at least one continuously available frequency selection RB section; wherein the content of the first and second substances,
and when the RBs included in one window length searched by the sliding window all meet the uplink interference noise requirement of the UE, recording the RBs included in the window length as frequency selection RB segments.
6. An uplink frequency selective scheduling device, comprising:
the first determining module is used for acquiring the number of Resource Blocks (RBs) required to be allocated to User Equipment (UE), and determining a reserved scheduling RB section corresponding to an uplink big data packet service in an uplink bandwidth when the current base station is detected to have the uplink big data packet service;
a first obtaining module, configured to obtain at least one continuously available frequency selection RB segment from the uplink bandwidth according to the number of RBs to be allocated, where the number of RBs included in the frequency selection RB segment is the number of RBs to be allocated;
a second obtaining module, configured to select, from the at least one continuously available frequency selection RB segment, a target frequency selection RB segment that is farthest from the reserved scheduling RB segment, and perform uplink frequency selection scheduling through the target frequency selection RB segment;
the first determining module is further configured to:
acquiring an uplink interference noise value of each RB in a preset time period counted every preset time length in a preset period by a current base station;
acquiring a target RB of which the uplink interference noise value is smaller than a third preset threshold value according to the uplink interference noise value of each RB;
and when the continuous target RB exists and the number of the continuous target RB is greater than a fourth preset threshold value, determining the continuous target RB as the reserved scheduling RB section.
7. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the steps of the uplink frequency selective scheduling method according to any one of claims 1 to 5 when executing the computer program.
8. A non-transitory computer-readable storage medium, having a computer program stored thereon, wherein the computer program, when being executed by a processor, implements the steps of the uplink frequency selective scheduling method according to any one of claims 1 to 5.
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| CN112689332B (en) * | 2020-12-29 | 2022-12-27 | 京信网络系统股份有限公司 | Uplink frequency selection scheduling method, device, base station and computer readable storage medium |
| CN112804757B (en) * | 2020-12-30 | 2023-05-02 | 联想未来通信科技(重庆)有限公司 | Switching method and device of frequency domain resource allocation types and readable storage medium |
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