CN113115447B - Frequency band self-adaptive selection method and device and computer readable storage medium - Google Patents
Frequency band self-adaptive selection method and device and computer readable storage medium Download PDFInfo
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- CN113115447B CN113115447B CN202010033321.7A CN202010033321A CN113115447B CN 113115447 B CN113115447 B CN 113115447B CN 202010033321 A CN202010033321 A CN 202010033321A CN 113115447 B CN113115447 B CN 113115447B
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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
- H04W72/0446—Resources in time domain, e.g. slots or frames
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0078—Avoidance of errors by organising the transmitted data in a format specifically designed to deal with errors, e.g. location
- H04L1/0083—Formatting with frames or packets; Protocol or part of protocol for error control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/14—Two-way operation using the same type of signal, i.e. duplex
- H04L5/1469—Two-way operation using the same type of signal, i.e. duplex using time-sharing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
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Abstract
The embodiment of the invention provides a frequency band self-adaptive selection method, a device and a computer readable storage medium, wherein the method comprises the following steps: receiving a broadcast message, wherein the broadcast message carries neighboring cell frame structure configuration information; and determining whether to adjust the accessed frequency point or not based on the broadcast message and the data transmission requirement of the terminal service.
Description
Technical Field
The present invention relates to the field of mobile communications technologies, and in particular, to a frequency band adaptive selection method and apparatus, and a computer-readable storage medium.
Background
Frequency bands are important resources of a mobile communication system, and an operator generally allocates one or more frequency band resources to a mobile communication system according to own frequency band resources and deployment requirements such as coverage scenes and capacity. Different frequency band resources are different in applicable coverage scenes due to the difference of characteristics of the frequency band resources: the propagation loss of a lower frequency band is lower, the coverage distance is larger, and the method is more suitable for continuous coverage of a large network; the higher frequency band is mostly used for hot spot coverage due to larger path loss and penetration loss and smaller coverage distance, and is used as a supplement for large network coverage and capacity, or is considered for special network coverage with special requirements.
Compared with 4G mainly oriented to 2C consumers, the 5G era is more rich in oriented application scenes, and the terminal forms and the service types borne by the terminal are more rich and diversified. For example, a user has a high demand for downlink data volume when watching an online video on a smart phone, and has a higher demand for uplink data volume and delay if using an interactive service or a live broadcast service.
Disclosure of Invention
At least one embodiment of the invention provides a frequency band self-adaptive selection method, a device and a computer readable storage medium, which determine whether to adjust an accessed frequency point based on a broadcast message carrying neighboring cell frame structure configuration information and a data transmission requirement of a terminal service, can flexibly adjust a frequency band and a corresponding frame structure in a multi-band coverage area, ensure a service transmission requirement and improve user experience.
According to an aspect of the present invention, at least one embodiment provides a frequency band adaptive selection method, including:
receiving a broadcast message, wherein the broadcast message carries neighboring cell frame structure configuration information;
and determining whether to adjust the accessed frequency point or not based on the broadcast message and the data transmission requirement of the terminal service.
Wherein the neighboring cell frame structure configuration information is:
and the uplink and downlink transmission time slot ratio corresponding to each time division duplex TDD frequency band of the adjacent region.
Determining whether to adjust an accessed frequency point based on the broadcast message and the data transmission requirement of the terminal service comprises the following steps:
determining transmission parameters corresponding to current and adjacent frequency points based on the broadcast message;
and determining whether to adjust the accessed frequency point based on the transmission parameters, the data transmission requirement of the terminal service and the moving speed of the terminal.
Determining transmission parameters corresponding to current and adjacent frequency points based on the broadcast message comprises the following steps:
determining currently accessed frequency point information and adjacent region frequency point information;
and determining and storing the currently accessed frequency points and uplink and downlink transmission resources and uplink and downlink transmission time delay which can be provided by each adjacent frequency point based on the currently accessed frequency point information, the adjacent frequency point information and the adjacent frame structure configuration information.
Determining whether to adjust the accessed frequency point based on the transmission parameters, the data transmission requirement of the terminal service and the moving speed of the terminal comprises the following steps:
determining frequency points which meet the terminal service in the current and adjacent frequency points based on the transmission parameters and the data transmission requirement of the terminal service;
carrying out priority sequencing on the frequency points meeting the terminal service;
adjusting the frequency point priority sequencing result based on the moving speed of the terminal;
judging whether the cell accessed by the terminal currently is the cell corresponding to the frequency point with the first priority after adjustment, if not, determining the frequency point needing to be adjusted; otherwise, keeping the frequency point accessed currently unchanged.
Adjusting the result of the priority ranking of the frequency points based on the moving speed of the terminal comprises the following steps:
and when the mobile speed of the terminal is determined to be larger than or equal to the preset threshold value, the priority of the frequency point with lower frequency point is increased, and the priority of the frequency point with higher frequency point is decreased.
Optionally, after the result of the priority ranking of the frequency points is adjusted based on the moving speed of the terminal, the method further includes:
and measuring the channel quality and/or the signal intensity of the cell corresponding to each frequency point based on the adjusted frequency point priority ranking result, and re-ranking the adjusted frequency point priority ranking result based on the measurement result, wherein the better the measurement result of the channel quality and/or the signal intensity is, the higher the priority of the cell corresponding to the frequency point is.
Optionally, the method further includes:
and pre-storing each service type and corresponding data transmission demand information, and updating the data transmission demand information according to a preset period.
Optionally, the method further includes:
when the terminal is in a radio resource control RRC connection state for data service transmission, whether the frequency point accessed by the terminal needs to be adjusted or not is judged according to a preset period.
Optionally, when it is determined that the accessed frequency point needs to be adjusted, the method further includes:
sending an adjustment request to a network side, wherein the adjustment request is used for suggesting the adjustment of a frequency point accessed by a terminal;
and the adjustment request carries information of the frequency point meeting the data transmission requirement of the terminal service.
According to another aspect of the present invention, at least one embodiment further provides a frequency band adaptive selection method, including:
determining a broadcast message, wherein the broadcast message carries neighboring cell frame structure configuration information;
and sending the broadcast message.
Optionally, the method further includes:
receiving an adjustment request, wherein the adjustment request is used for suggesting the adjustment of a frequency point accessed by a terminal; the adjustment request carries information of frequency points meeting the data transmission requirements of the terminal service;
and determining whether to instruct the terminal to adjust the accessed frequency points or not based on the adjustment request.
According to another aspect of the present invention, at least one embodiment further provides a frequency band adaptive selection apparatus, including:
a receiving module, configured to receive a broadcast message, where the broadcast message carries neighboring cell frame structure configuration information;
and the first processing module is used for determining whether to adjust the accessed frequency point based on the broadcast message and the data transmission requirement of the terminal service.
According to another aspect of the present invention, at least one embodiment further provides a frequency band adaptive selection apparatus, including:
a second processing module, configured to determine a broadcast message, where the broadcast message carries neighboring cell frame structure configuration information;
a sending module, configured to send the broadcast message.
According to another aspect of the present invention, at least one embodiment further provides a frequency band adaptive selection apparatus, including: a processor and a memory for storing a computer program capable of running on the processor,
wherein the processor is configured to perform the steps of the above method when running the computer program.
According to another aspect of the present invention, at least one embodiment also provides a computer-readable storage medium, on which a computer program is stored, which computer program, when executed by a processor, performs the steps of the above-described method.
The frequency band self-adaptive selection method, the device and the computer-readable storage medium provided by the embodiment of the invention determine whether to adjust the accessed frequency point based on the broadcast message carrying the configuration information of the adjacent cell frame structure and the data transmission requirement of the terminal service, can flexibly adjust the frequency band and the corresponding frame structure in a multi-band coverage area, ensure the service transmission requirement and improve the user experience.
Drawings
Fig. 1 is a first schematic flow chart of a frequency band adaptive selection method according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of a frequency band adaptive selection method according to an embodiment of the present invention;
fig. 3 is a first schematic structural diagram of a frequency band adaptive selection apparatus according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a frequency band adaptive selection apparatus according to an embodiment of the present invention;
fig. 5 is a schematic flow chart of a frequency band adaptive selection method according to an embodiment of the present invention.
Detailed Description
The invention is described below with reference to the figures and examples.
As can be seen from the related art, in the 5G era, the service requirements of users cannot be met if a relatively fixed frequency band and a single frame structure configuration are still used. With the expansion of the deployment scale of the 5G network, multiple frequency band coverage may exist in the same area, and how to flexibly select the accessed 5G frequency band by the terminal user to meet the service requirement and ensure that the user experience is the problem that the 5G needs to be considered, while the related frequency band selection mechanism is not complete at present. In the existing mechanism, a terminal can change an accessed frequency point through a cell reselection or handover mode, but the condition for judging whether the frequency point needs to be changed is based on the signal strength of the cell and the adjacent cell and the frequency point priority uniformly configured for each user in the cell from the network deployment perspective, and the service transmission requirement of the user is not considered at all.
In order to solve the above problems, at least one embodiment of the present invention provides a frequency band adaptive selection method based on terminal service requirements, which can flexibly adjust a frequency band and a corresponding frame structure in a multi-band coverage area based on the requirements of a service type of a terminal on transmission resources, thereby guaranteeing service transmission requirements and improving user experience.
As shown in fig. 1, an embodiment of the present invention provides a frequency band adaptive selection method, as shown in fig. 1, the method includes:
step 101: receiving a broadcast message, wherein the broadcast message carries neighboring cell frame structure configuration information;
step 102: and determining whether to adjust the accessed frequency point or not based on the broadcast message and the data transmission requirement of the terminal service.
The neighboring cell frame structure configuration information may be:
and the uplink and downlink transmission time slot ratio corresponding to each time division duplex TDD frequency band of the adjacent region.
In practical application, a field may be added in SIB4 to indicate the neighbor cell frame structure configuration information.
In an embodiment, the determining whether to adjust an access frequency point based on the broadcast message and a data transmission requirement of a terminal service includes:
determining transmission parameters (such as uplink/downlink transmission resources and uplink/downlink transmission time delay) corresponding to the current and adjacent frequency points based on the broadcast message;
and determining whether to adjust the accessed frequency point based on the transmission parameters, the data transmission requirement of the terminal service and the moving speed of the terminal.
In one embodiment, the determining the transmission parameters corresponding to the current and neighboring frequency points based on the broadcast message includes:
determining currently accessed frequency point information and adjacent cell frequency point information;
and determining and storing the currently accessed frequency points and uplink and downlink transmission resources and uplink and downlink transmission time delay which can be provided by each adjacent frequency point based on the currently accessed frequency point information, the adjacent frequency point information and the adjacent frame structure configuration information.
In one embodiment, the determining whether to adjust an access frequency point based on the transmission parameter, a data transmission requirement of a terminal service, and a moving speed of the terminal includes:
determining the frequency points which meet the terminal service in the current and adjacent frequency points based on the transmission parameters and the data transmission requirement of the terminal service;
carrying out priority sequencing on the frequency points meeting the terminal service;
adjusting the frequency point priority sequencing result based on the moving speed of the terminal;
judging whether the cell accessed by the terminal currently is the cell corresponding to the frequency point with the first priority after adjustment, if not, determining the frequency point needing to be adjusted; otherwise, keeping the currently accessed frequency point unchanged.
Here, the result of the priority ranking of the frequency points can ensure that the terminal can rapidly move to the appropriate frequency points, thereby further ensuring the transmission requirements of the service application.
In one embodiment, the adjusting the result of the priority ranking of the frequency points based on the moving speed of the terminal includes:
when the moving speed of the terminal is determined to be larger than or equal to a preset threshold value, the priority of the frequency point with lower frequency point is increased, and the priority of the frequency point with higher frequency point is decreased; otherwise, keeping the frequency point priority sequencing result unchanged.
Here, increasing the priority of the lower frequency point can reduce frequent cell switching of the terminal and better guarantee the signal demodulation performance.
In one embodiment, after the adjusting the result of the priority ranking of the frequency points based on the moving speed of the terminal, the method further includes:
and measuring the channel quality and/or the signal strength of the cell corresponding to each frequency point based on the adjusted frequency point priority ranking result, and re-ranking the adjusted frequency point priority ranking result based on the measurement result, wherein the better the measurement result of the channel quality and/or the signal strength is, the higher the priority of the cell corresponding to the frequency point is.
In one embodiment, the method further comprises:
and pre-storing each service type and corresponding data transmission demand information, and updating the data transmission demand information according to a preset period.
Here, typical traffic types and corresponding data transmission requirements include, but are not limited to, the following:
the time delay service comprises the following steps: traffic types sensitive to transmission delays, such as online gaming, teleconferencing, industrial control, etc.;
uplink data transmission service: service types with large uplink data volume, such as video monitoring, video return, high-definition live broadcast and the like;
downlink data transmission service: and the service type with large downlink data volume, such as 4K/8K high-definition video, AR/VR and the like.
In one embodiment, the method further comprises:
when the terminal is in a radio resource control RRC connection state for data service transmission, whether the frequency point accessed by the terminal needs to be adjusted or not is judged according to a preset period.
In one embodiment, when it is determined that an access frequency point needs to be adjusted, the method further includes:
sending an adjustment request to a network side, wherein the adjustment request is used for suggesting the adjustment of a frequency point accessed by a terminal;
the adjustment request carries information of frequency points (such as priority sequencing results of the frequency points) meeting the data transmission requirements of the terminal service.
Another embodiment of the present invention further provides a frequency band adaptive selection method, as shown in fig. 2, the method includes:
step 201: determining a broadcast message, wherein the broadcast message carries neighboring cell frame structure configuration information;
step 202: and sending the broadcast message.
In one embodiment, the method further comprises:
receiving an adjustment request, wherein the adjustment request is used for suggesting the adjustment of a frequency point accessed by a terminal; the adjustment request carries information of frequency points meeting the data transmission requirements of the terminal service;
and determining whether to instruct the terminal to adjust the accessed frequency points or not based on the adjustment request.
In order to implement the foregoing method embodiment, an embodiment of the present invention further provides a frequency band adaptive selection apparatus, as shown in fig. 3, where the apparatus includes:
a receiving module 301, configured to receive a broadcast message, where the broadcast message carries neighboring cell frame structure configuration information;
a first processing module 302, configured to determine whether to adjust an access frequency point based on the broadcast message and a data transmission requirement of a terminal service.
The neighboring cell frame structure configuration information may be:
and the uplink and downlink transmission time slot ratio corresponding to each time division duplex TDD frequency band of the adjacent region.
In practical application, a field may be added in SIB4 to indicate the neighbor cell frame structure configuration information.
In one embodiment, the determining, by the first processing module 302, whether to adjust an access frequency point based on the broadcast message and a data transmission requirement of a terminal service includes:
determining transmission parameters (such as uplink/downlink transmission resources and uplink/downlink transmission time delay) corresponding to the current and adjacent frequency points based on the broadcast message;
and determining whether to adjust the accessed frequency point or not based on the transmission parameters, the data transmission requirement of the terminal service and the moving speed of the terminal.
In one embodiment, the determining, by the first processing module 302, transmission parameters corresponding to current and neighboring frequency points based on the broadcast message includes:
determining currently accessed frequency point information and adjacent region frequency point information;
and determining and storing the currently accessed frequency points and uplink and downlink transmission resources and uplink and downlink transmission time delay which can be provided by each adjacent frequency point based on the currently accessed frequency point information, the adjacent frequency point information and the adjacent frame structure configuration information.
In an embodiment, the determining, by the first processing module 302, whether to adjust an access frequency point based on the transmission parameter, a data transmission requirement of a terminal service, and a moving speed of a terminal includes:
determining the frequency points which meet the terminal service in the current and adjacent frequency points based on the transmission parameters and the data transmission requirement of the terminal service;
carrying out priority sequencing on the frequency points meeting the terminal service;
adjusting the frequency point priority sequencing result based on the moving speed of the terminal;
judging whether the cell accessed by the terminal currently is the cell corresponding to the frequency point with the first priority after adjustment, if not, determining the frequency point needing to be adjusted; otherwise, keeping the currently accessed frequency point unchanged.
In an embodiment, the adjusting, by the first processing module 302, the frequency point prioritization result based on the moving speed of the terminal includes:
when the moving rate of the terminal is determined to be larger than or equal to a preset threshold value, the priority of the frequency point with lower frequency point is increased, and the priority of the frequency point with higher frequency point is decreased; otherwise, keeping the frequency point priority ordering result unchanged.
In an embodiment, after the first processing module 302 adjusts the result of the frequency point prioritization based on the moving speed of the terminal, the first processing module is further configured to adjust the result of the frequency point prioritization based on the moving speed of the terminal
And measuring the channel quality and/or the signal intensity of the cell corresponding to each frequency point based on the adjusted frequency point priority ranking result, and re-ranking the adjusted frequency point priority ranking result based on the measurement result, wherein the better the measurement result of the channel quality and/or the signal intensity is, the higher the priority of the cell corresponding to the frequency point is.
In an embodiment, the first processing module 302 is further configured to pre-store each service type and corresponding data transmission requirement information, and update the data transmission requirement information according to a preset period.
Here, typical traffic types and corresponding data transmission requirements include, but are not limited to, the following:
the time delay service comprises the following steps: traffic types sensitive to transmission delays, such as online gaming, teleconferencing, industrial control, etc.;
uplink data transmission service: service types with large uplink data volume, such as video monitoring, video return, high-definition live broadcast and the like;
downlink data transmission service: and the service type with large downlink data volume, such as 4K/8K high-definition video, AR/VR and the like.
In an embodiment, the first processing module 302 is further configured to determine and determine whether to adjust a frequency point accessed by the terminal according to a preset period when the terminal is in a radio resource control RRC connected state for data service transmission.
In one embodiment, when determining that an access frequency point needs to be adjusted, the first processing module 302 is further configured to send an adjustment request to a network side, where the adjustment request is used to suggest to adjust the access frequency point of the terminal;
the adjustment request carries information of the frequency points meeting the data transmission requirements of the terminal service (such as the priority ordering result of the frequency points).
An embodiment of the present invention further provides a frequency band adaptive selection apparatus, as shown in fig. 4, the apparatus includes:
a second processing module 401, configured to determine a broadcast message, where the broadcast message carries neighboring cell frame structure configuration information;
a sending module 402, configured to send the broadcast message.
In one embodiment, the second processing module 401 is further configured to
Receiving an adjustment request, wherein the adjustment request is used for suggesting the adjustment of a frequency point accessed by a terminal; the adjustment request carries information of frequency points meeting the data transmission requirements of the terminal service;
and determining whether to instruct the terminal to adjust the accessed frequency points or not based on the adjustment request.
The embodiment of the invention also provides a frequency band self-adaptive selection device, which comprises: a processor and a memory for storing a computer program capable of running on the processor,
wherein the processor is configured to, when running the computer program, perform:
receiving a broadcast message, wherein the broadcast message carries neighboring cell frame structure configuration information;
and determining whether to adjust the accessed frequency point or not based on the broadcast message and the data transmission requirement of the terminal service.
Wherein the neighboring cell frame structure configuration information is:
and the uplink and downlink transmission time slot ratio corresponding to each time division duplex TDD frequency band of the adjacent region.
When determining whether to adjust the accessed frequency point based on the data transmission requirements of the broadcast message and the terminal service, the processor is further configured to execute:
determining transmission parameters corresponding to the current and adjacent frequency points based on the broadcast message;
and determining whether to adjust the accessed frequency point based on the transmission parameters, the data transmission requirement of the terminal service and the moving speed of the terminal.
When determining the transmission parameters corresponding to the current and neighboring frequency points based on the broadcast message, the processor is further configured to execute, when running the computer program:
determining currently accessed frequency point information and adjacent region frequency point information;
and determining and storing the currently accessed frequency points and uplink and downlink transmission resources and uplink and downlink transmission time delay which can be provided by each adjacent frequency point based on the currently accessed frequency point information, the adjacent frequency point information and the adjacent frame structure configuration information.
When determining whether to adjust the accessed frequency point based on the transmission parameters, the data transmission requirements of the terminal service and the moving speed of the terminal, the processor is further configured to execute:
determining frequency points which meet the terminal service in the current and adjacent frequency points based on the transmission parameters and the data transmission requirement of the terminal service;
carrying out priority sequencing on the frequency points meeting the terminal service;
adjusting the frequency point priority sequencing result based on the moving speed of the terminal;
judging whether the cell accessed by the terminal currently is the cell corresponding to the frequency point with the first priority after adjustment, if not, determining the frequency point needing to be adjusted; otherwise, keeping the currently accessed frequency point unchanged.
When the frequency point priority ranking result is adjusted based on the moving speed of the terminal, the processor is further configured to execute:
and when the mobile speed of the terminal is determined to be larger than or equal to the preset threshold value, the priority of the frequency point with lower frequency point is increased, and the priority of the frequency point with higher frequency point is decreased.
After the frequency point priority ranking result is adjusted based on the moving speed of the terminal, the processor is further configured to execute, when the computer program is run:
and measuring the channel quality and/or the signal intensity of the cell corresponding to each frequency point based on the adjusted frequency point priority ranking result, and re-ranking the adjusted frequency point priority ranking result based on the measurement result, wherein the better the measurement result of the channel quality and/or the signal intensity is, the higher the priority of the cell corresponding to the frequency point is.
The processor is further configured to, when executing the computer program, perform:
and pre-storing each service type and corresponding data transmission demand information, and updating the data transmission demand information according to a preset period.
The processor is further configured to, when executing the computer program, perform:
and when the terminal is in a Radio Resource Control (RRC) connection state for data service transmission, judging and determining whether the frequency point accessed by the terminal needs to be adjusted according to a preset period.
When determining the frequency point needing to be adjusted, the processor is further configured to execute, when running the computer program:
sending an adjustment request to a network side, wherein the adjustment request is used for suggesting the adjustment of a frequency point accessed by a terminal;
and the adjustment request carries information of the frequency point meeting the data transmission requirement of the terminal service.
The embodiment of the invention also provides a frequency band self-adaptive selection device, which comprises: a processor and a memory for storing a computer program capable of running on the processor,
wherein the processor is configured to execute, when running the computer program:
determining a broadcast message, wherein the broadcast message carries neighboring cell frame structure configuration information;
and sending the broadcast message.
The processor is further configured to, when executing the computer program, perform:
receiving an adjustment request, wherein the adjustment request is used for suggesting the adjustment of a frequency point accessed by a terminal; the adjustment request carries information of frequency points meeting the data transmission requirements of the terminal service;
and determining whether to instruct the terminal to adjust the accessed frequency points or not based on the adjustment request.
It should be noted that: in the apparatus provided in the foregoing embodiment, when performing frequency band adaptive selection, only the division of each program module is described as an example, and in practical applications, the processing allocation may be completed by different program modules according to needs, that is, the internal structure of the device is divided into different program modules, so as to complete all or part of the processing described above. In addition, the apparatus provided in the above embodiments and the corresponding method embodiments belong to the same concept, and specific implementation processes thereof are described in the method embodiments and are not described herein again.
In an exemplary embodiment, the embodiment of the present invention also provides a computer-readable storage medium, which may be a Memory such as FRAM, ROM, PROM, EPROM, EEPROM, flash Memory, magnetic surface Memory, optical disc, or CD-ROM; or may be a variety of devices including one or any combination of the above memories, such as a mobile phone, computer, tablet device, personal digital assistant, etc.
An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, performs:
receiving a broadcast message, wherein the broadcast message carries neighboring cell frame structure configuration information;
and determining whether to adjust the accessed frequency point or not based on the broadcast message and the data transmission requirement of the terminal service.
Wherein the neighboring cell frame structure configuration information is:
and the uplink and downlink transmission time slot ratio corresponding to each time division duplex TDD frequency band of the adjacent region.
When determining whether to adjust the accessed frequency point based on the data transmission requirements of the broadcast message and the terminal service, the computer program further executes, when being executed by a processor:
determining transmission parameters corresponding to the current and adjacent frequency points based on the broadcast message;
and determining whether to adjust the accessed frequency point based on the transmission parameters, the data transmission requirement of the terminal service and the moving speed of the terminal.
When the transmission parameters corresponding to the current and adjacent frequency points are determined based on the broadcast message, and the computer program is executed by a processor, the method further executes:
determining currently accessed frequency point information and adjacent cell frequency point information;
and determining and storing the currently accessed frequency points and uplink and downlink transmission resources and uplink and downlink transmission time delay which can be provided by each adjacent frequency point based on the currently accessed frequency point information, the adjacent frequency point information and the adjacent frame structure configuration information.
When determining whether to adjust the accessed frequency point based on the transmission parameters, the data transmission requirements of the terminal service and the moving speed of the terminal, the computer program further executes, when being executed by the processor:
determining the frequency points which meet the terminal service in the current and adjacent frequency points based on the transmission parameters and the data transmission requirement of the terminal service;
carrying out priority sequencing on the frequency points meeting the terminal service;
adjusting the frequency point priority sequencing result based on the moving speed of the terminal;
judging whether the cell accessed by the terminal currently is the cell corresponding to the frequency point with the first priority after adjustment, if not, determining the frequency point needing to be adjusted; otherwise, keeping the currently accessed frequency point unchanged.
When the frequency point priority ranking result is adjusted based on the moving speed of the terminal, and the computer program is run by the processor, the method also executes:
and when the moving rate of the terminal is determined to be greater than or equal to the preset threshold value, the lower frequency point priority of the frequency point is increased, and the higher frequency point priority of the frequency point is reduced.
After the frequency point priority ranking result is adjusted based on the moving speed of the terminal, when the computer program is run by the processor, the computer program further executes:
and measuring the channel quality and/or the signal intensity of the cell corresponding to each frequency point based on the adjusted frequency point priority ranking result, and re-ranking the adjusted frequency point priority ranking result based on the measurement result, wherein the better the measurement result of the channel quality and/or the signal intensity is, the higher the priority of the cell corresponding to the frequency point is.
The computer program, when executed by the processor, further performs:
and pre-storing each service type and corresponding data transmission demand information, and updating the data transmission demand information according to a preset period.
The computer program, when executed by a processor, further performs:
and when the terminal is in a Radio Resource Control (RRC) connection state for data service transmission, judging and determining whether the frequency point accessed by the terminal needs to be adjusted according to a preset period.
When the frequency point needing to be adjusted is determined, the computer program further executes, when being executed by the processor:
sending an adjustment request to a network side, wherein the adjustment request is used for suggesting the adjustment of a frequency point accessed by a terminal;
and the adjustment request carries information of the frequency point meeting the data transmission requirement of the terminal service.
An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, performs:
determining a broadcast message, wherein the broadcast message carries neighboring cell frame structure configuration information;
and sending the broadcast message.
The computer program, when executed by the processor, further performs:
receiving an adjustment request, wherein the adjustment request is used for suggesting the adjustment of a frequency point accessed by a terminal; the adjustment request carries information of frequency points meeting the data transmission requirements of the terminal service;
and determining whether to instruct the terminal to adjust the accessed frequency points or not based on the adjustment request.
The invention is described below in conjunction with the scenario embodiments.
The embodiment provides a frequency band self-adaptive selection method based on terminal service requirements, and the scheme is suitable for flexibly selecting and adjusting the frequency band of a terminal in a multi-band coverage area.
Here, the terminal usually selects the resident network frequency point according to the frequency point priority configured by the network and according to the signal strength of the actual network.
As shown in fig. 5, the specific scheme flow of the scheme is as follows:
step 501: in the broadcast message received by the terminal, besides carrying the information of the frequency point of the 5G neighboring cell, it is also necessary to add the corresponding frame structure configuration (uplink/downlink transmission time slot ratio) information for the TDD band therein.
Here, a field may be added to SIB4 to indicate frame configuration (uplink/downlink transmission timeslot ratio) corresponding to each TDD band in the neighboring cell.
Step 502: the terminal calculates uplink/downlink transmission resources and uplink/downlink transmission time delay which can be provided by the currently accessed frequency point and each adjacent frequency point according to the currently accessed network frequency point (possibly a TDD or FDD frequency point), the read adjacent frequency point information (possibly including the TDD and FDD frequency points) and the frame structure configuration information corresponding to the TDD frequency point, and generates and stores a transmission rate and a time delay information list corresponding to the current and adjacent frequency points.
Here, after the terminal normally resides in a certain cell, one or more frequency points of the neighboring cell and the frame structure of the TDD band therein may be obtained from the broadcast message. According to the uplink/downlink subframe proportion and the frame structure of each frequency point, the terminal can calculate the uplink/downlink transmission resources and the uplink/downlink transmission time delay corresponding to the frequency point of the cell and one or more frequency points of the adjacent cell one by one, and the transmission rate and the time delay information list generated by the terminal comprise the frequency point information and the uplink/downlink transmission resources and the uplink/downlink transmission time delay corresponding to each frequency point.
In this embodiment, the terminal may store various typical service types and corresponding data transmission requirement information lists in advance, which may include, but are not limited to, typical service applications and their corresponding uplink/downlink data transmission rate requirements (e.g., mbps level), delay requirements (e.g., ms level), and the like. The data transmission rate requirement and the latency requirement may be an average requirement or a minimum requirement for a certain service application.
The terminal may consider that the data transmission requirements corresponding to the following (but not limited to) typical service applications having special requirements on data transmission rate and/or transmission delay are stored:
the delay class: traffic types that are sensitive to transmission delays, such as online gaming, teleconferencing, industrial control, etc.;
uplink data transmission type: service types with large uplink data volume, such as video monitoring, video return, high-definition live broadcast and the like;
downlink data transmission type: and the service type with large downlink data volume, such as 4K/8K high-definition video, AR/VR and the like.
In another embodiment, the terminal may preset threshold values or segment judgment conditions of data transmission rate and transmission delay, so as to determine the service type having special requirements for transmission. The terminal may store only the traffic types having special requirements for transmission rate and/or delay in the data transmission requirement information list.
Optionally, in the using process of the terminal, the pre-stored data transmission requirement information is updated according to the actual use condition of the current user for each service application.
For example: the terminal sets a statistical time window length M and a statistical frequency N, the data transmission rate requirement required by the actual use of a certain service application is calculated within the time length M, and the average value of the data transmission rates calculated for N times is calculated and used for updating the currently stored data transmission requirement corresponding to the service application.
Step 503: when a terminal needs to initiate a certain service application and needs to perform uplink/downlink data transmission, the terminal reads a pre-stored data transmission requirement information list of typical service types, and judges whether the service application needing to be initiated currently is contained in the data transmission requirement information list:
if it is indicated that the service application has special requirements for transmission, go to step 504; if no special requirement for transmission is included in the service application, step 508 is executed.
Step 504: the terminal generates an access frequency point priority suggestion list, and then step 505 is executed;
here, if a service application to be initiated has a clear requirement for transmission, the terminal compares transmission rates corresponding to current and neighboring frequency points with which frequency points in the delay information list can satisfy the transmission requirement (data transmission rate and/or transmission delay) of the service application, and the terminal generates an access frequency point priority suggestion list, where the list includes frequency point information that can satisfy the transmission requirement of the service application. According to the service types (time delay type, uplink data transmission type and downlink data transmission type) applied by the service, the frequency points meeting the transmission requirements are sorted according to the size of the transmission resources provided by each frequency point, and the higher the transmission rate of the uplink/downlink data or the smaller the transmission time delay, the higher the priority of the frequency points. If the comparison shows that the current and adjacent frequency points can not meet the transmission requirement of the service application, the terminal judges not to adjust the frequency points.
For the time delay service application, the frequency points are sequenced according to the time delay provided by each frequency point: the smaller the time delay is, the higher the priority of the corresponding frequency point is. For the application of uplink/downlink data transmission services, the frequency points are sequenced according to the uplink/downlink data transmission rate which can be provided by each frequency point, and the higher the data transmission rate is, the higher the priority of the corresponding frequency point is.
Step 505: the terminal obtains the self moving speed S, compares the self moving speed S with a preset moving speed threshold S _ threshold, and if S is more than or equal to the threshold S _ threshold, executes the step 506: otherwise, the terminal judges that the low frequency point does not need to be preferentially selected for access, keeps the priority suggestion list of the prior access frequency point unchanged, and executes the step 507;
step 506: when the terminal moving speed S is greater than or equal to the threshold value S _ threshold, the terminal judges that low frequency point access needs to be preferentially selected so as to reduce frequent cell switching of the terminal and better ensure the signal demodulation performance; the terminal reorders the frequency points in the access frequency point priority suggestion list, and the lower the frequency point, the higher the priority, and then step 507 is executed.
Step 507: the terminal measures the channel quality/signal strength (which can be but not limited to RSRP, RSRQ, CQI, SINR and the like) of a cell corresponding to each frequency point according to the access frequency point priority suggestion list, and reorders the frequency point priority according to the measurement result;
here, the channel quality/signal strength measurement result of the cell corresponding to each frequency point may be added to the access frequency point priority suggestion list (including each cell corresponding to the frequency point and the measurement result of each cell), and the frequency points in the access frequency point priority suggestion list may be reordered according to the channel quality/signal strength measurement result of the cell corresponding to each frequency point, where the better the channel quality/signal strength measurement result is, the higher the cell priority corresponding to the frequency point is.
Step 508: if the cell in the first priority in the access frequency point priority suggestion list is the cell currently accessed by the terminal, the terminal judges that the frequency point is not adjusted; otherwise, the terminal determines that the frequency point needs to be adjusted, and then proceeds to step 509;
step 509: adding an uplink signaling, and sending a request for recommending and adjusting the access frequency point to the network and sending an access frequency point priority recommendation list to the network by the terminal;
here, the terminal may transmit the access frequency point priority suggestion list to the network in the RRC connection setup procedure.
Step 510: after receiving a request for recommending and adjusting the access frequency point and an access frequency point priority recommendation list sent by a terminal, a network can comprehensively judge whether to instruct the terminal to adjust the access frequency point or not and an adjusted target frequency point and a cell according to the channel quality/signal intensity measurement result of each cell, the load condition of each cell, the network scheduling complexity and other factors.
In this embodiment, when the terminal is in the RRC connected state to perform data service transmission, the terminal may perform a periodic transmission requirement and a frequency point determination process.
The embodiment of the invention can flexibly adjust the frequency band and the corresponding frame structure in the multi-band coverage area based on the requirement of the service type of the terminal on transmission resources and the information of the terminal moving speed, the channel quality and the like, perfects the mechanism of flexibly adjusting the access frequency point and the corresponding frame structure by the terminal in the multi-band coverage area, fully combines the transmission characteristics of service application, the terminal moving speed, the channel quality and other factors, can ensure the transmission requirement of the service application, ensure the demodulation performance of data and further improve the user experience.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (15)
1. A frequency band adaptive selection method is characterized by comprising the following steps:
receiving a broadcast message, wherein the broadcast message carries neighboring cell frame structure configuration information;
determining transmission parameters corresponding to the current and adjacent frequency points based on the broadcast message;
judging whether the current initiated service application is contained in a data transmission demand information list or not; each service type and corresponding data transmission demand information are stored in the data transmission demand information list;
and if the currently initiated service application is contained in the data transmission demand information list, determining whether to adjust the accessed frequency point or not based on the transmission parameters, the data transmission demand of the terminal service and the moving speed of the terminal.
2. The method of claim 1, wherein the neighbor frame structure configuration information is:
and the uplink and downlink transmission time slot ratio corresponding to each time division duplex TDD frequency band of the adjacent region.
3. The method of claim 1, wherein the determining the transmission parameters corresponding to the current and neighboring frequency points based on the broadcast message comprises:
determining currently accessed frequency point information and adjacent region frequency point information;
and determining and storing the currently accessed frequency points and uplink and downlink transmission resources and uplink and downlink transmission time delay which can be provided by each adjacent frequency point based on the currently accessed frequency point information, the adjacent frequency point information and the adjacent frame structure configuration information.
4. The method of claim 1, wherein the determining whether to adjust the accessed frequency point based on the transmission parameters, the data transmission requirements of the terminal service, and the moving speed of the terminal comprises:
determining the frequency points which meet the terminal service in the current and adjacent frequency points based on the transmission parameters and the data transmission requirement of the terminal service;
carrying out priority sequencing on the frequency points meeting the terminal service;
adjusting the frequency point priority sequencing result based on the moving speed of the terminal;
judging whether the cell accessed by the terminal currently is the cell corresponding to the frequency point with the first priority after adjustment, if not, determining the frequency point needing to be adjusted; otherwise, keeping the currently accessed frequency point unchanged.
5. The method according to claim 4, wherein the adjusting the result of the ranking of the priority of the frequency points based on the moving speed of the terminal comprises:
and when the moving rate of the terminal is determined to be greater than or equal to the preset threshold value, the lower frequency point priority of the frequency point is increased, and the higher frequency point priority of the frequency point is reduced.
6. The method according to claim 4 or 5, wherein after the adjusting the result of the frequency point prioritization based on the moving speed of the terminal, the method further comprises:
and measuring the channel quality and/or the signal intensity of the cell corresponding to each frequency point based on the adjusted frequency point priority ranking result, and re-ranking the adjusted frequency point priority ranking result based on the measurement result, wherein the better the measurement result of the channel quality and/or the signal intensity is, the higher the priority of the cell corresponding to the frequency point is.
7. The method of claim 1, further comprising:
and pre-storing each service type and corresponding data transmission demand information, and updating the data transmission demand information according to a preset period.
8. The method of claim 1, further comprising:
and when the terminal is in a Radio Resource Control (RRC) connection state for data service transmission, judging and determining whether the frequency point accessed by the terminal needs to be adjusted according to a preset period.
9. The method of claim 1, wherein when determining the frequency point to be adjusted, the method further comprises:
sending an adjustment request to a network side, wherein the adjustment request is used for suggesting the adjustment of a frequency point accessed by a terminal;
and the adjustment request carries information of the frequency point meeting the data transmission requirement of the terminal service.
10. A frequency band adaptive selection method is characterized by comprising the following steps:
the network equipment determines a broadcast message, wherein the broadcast message carries neighboring cell frame structure configuration information;
the network equipment sends the broadcast message to a terminal;
the broadcast message is used for the terminal to determine the transmission parameters corresponding to the current and adjacent frequency points; the terminal judges whether the currently initiated service application is contained in a data transmission demand information list or not; each service type and corresponding data transmission demand information are stored in the data transmission demand information list; and if the currently initiated service application is contained in the data transmission requirement information list, the terminal determines whether to adjust the accessed frequency point based on the transmission parameters, the data transmission requirement of the terminal service and the moving speed of the terminal.
11. The method of claim 10, further comprising:
receiving an adjustment request, wherein the adjustment request is used for suggesting the adjustment of a frequency point accessed by a terminal; the adjustment request carries information of frequency points meeting the data transmission requirements of the terminal service;
and determining whether to instruct the terminal to adjust the accessed frequency points or not based on the adjustment request.
12. A frequency band adaptive selection apparatus, comprising:
a receiving module, configured to receive a broadcast message, where the broadcast message carries neighboring cell frame structure configuration information;
the first processing module is used for determining transmission parameters corresponding to the current and adjacent frequency points based on the broadcast message; judging whether the currently initiated service application is contained in a data transmission demand information list or not; each service type and corresponding data transmission demand information are stored in the data transmission demand information list; and if the currently initiated service application is contained in the data transmission demand information list, determining whether to adjust the accessed frequency point based on the transmission parameters, the data transmission demand of the terminal service and the moving speed of the terminal.
13. A frequency band adaptive selection system, the system comprising:
the network equipment is used for determining a broadcast message, wherein the broadcast message carries neighboring cell frame structure configuration information; sending the broadcast message to a terminal;
the terminal is used for receiving the broadcast message and determining the transmission parameters corresponding to the current and adjacent frequency points based on the broadcast message; judging whether the currently initiated service application is contained in a data transmission demand information list or not; each service type and corresponding data transmission demand information are stored in the data transmission demand information list; and if the currently initiated service application is contained in the data transmission demand information list, determining whether to adjust the accessed frequency point based on the transmission parameters, the data transmission demand of the terminal service and the moving speed of the terminal.
14. A device for adaptively selecting a frequency band, the device comprising: a processor and a memory for storing a computer program capable of running on the processor,
wherein the processor is adapted to perform the steps of the method of any one of claims 1 to 9, or to perform the steps of the method of claim 10 or 11, when the computer program is run.
15. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 9 or carries out the steps of the method of claim 10 or 11.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101686526A (en) * | 2008-09-27 | 2010-03-31 | 中兴通讯股份有限公司 | Cell reselection method in idle mode of broadband wireless access system |
| CN105611538A (en) * | 2015-12-30 | 2016-05-25 | 国网信息通信产业集团有限公司 | Frequency point aggregation method and system for authorizing power wireless frequency bands |
| CN106488407A (en) * | 2015-08-25 | 2017-03-08 | 中国移动通信集团公司 | The method and device that a kind of cell selects |
| CN106604397A (en) * | 2016-04-28 | 2017-04-26 | 福建先创电子有限公司 | Wideband trunking wireless transmission method and system based on variable-frame structure |
| CN110572830A (en) * | 2015-03-06 | 2019-12-13 | 华为技术有限公司 | method and device for using wireless interface technology and communication system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115884403A (en) * | 2017-01-06 | 2023-03-31 | 中兴通讯股份有限公司 | Data transmission method, device and storage medium |
-
2020
- 2020-01-13 CN CN202010033321.7A patent/CN113115447B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101686526A (en) * | 2008-09-27 | 2010-03-31 | 中兴通讯股份有限公司 | Cell reselection method in idle mode of broadband wireless access system |
| CN110572830A (en) * | 2015-03-06 | 2019-12-13 | 华为技术有限公司 | method and device for using wireless interface technology and communication system |
| CN106488407A (en) * | 2015-08-25 | 2017-03-08 | 中国移动通信集团公司 | The method and device that a kind of cell selects |
| CN105611538A (en) * | 2015-12-30 | 2016-05-25 | 国网信息通信产业集团有限公司 | Frequency point aggregation method and system for authorizing power wireless frequency bands |
| CN106604397A (en) * | 2016-04-28 | 2017-04-26 | 福建先创电子有限公司 | Wideband trunking wireless transmission method and system based on variable-frame structure |
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