CN107979855B - Data transmission method, base station and computer storage medium - Google Patents
Data transmission method, base station and computer storage medium Download PDFInfo
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- CN107979855B CN107979855B CN201711140763.6A CN201711140763A CN107979855B CN 107979855 B CN107979855 B CN 107979855B CN 201711140763 A CN201711140763 A CN 201711140763A CN 107979855 B CN107979855 B CN 107979855B
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- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000004891 communication Methods 0.000 claims abstract description 10
- 238000004590 computer program Methods 0.000 claims description 5
- 239000013307 optical fiber Substances 0.000 description 5
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/02—Access restriction performed under specific conditions
- H04W48/06—Access restriction performed under specific conditions based on traffic conditions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/20—Selecting an access point
Abstract
The embodiment of the invention provides a data transmission method, a base station and a computer storage medium, relates to the technical field of communication, and solves the problem that a proper link cannot be selected for high-priority service data to be transmitted in the prior art. The scheme is as follows: identifying the priority of service data to be returned by a base station; under the condition that the priority of the service data is in a preset range, returning the service data through a wireless return link between the base station and an adjacent cell of the base station, wherein the wireless return link corresponds to the adjacent cell with the highest wireless signal intensity when the target frequency point is used; the target frequency point is a frequency point which has the least number of cells used by the cell served by the base station and the adjacent cell and has the wireless signal intensity greater than or equal to the threshold when being used, or a frequency point which has the least number of cells used by the cell served by the base station and the adjacent cell and has the wireless signal intensity greater than or equal to the threshold when being used by the adjacent cell, among frequency points used by the wireless backhaul links between the base station and the adjacent cells. The invention is applied to data transmission.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a data transmission method, a base station, and a computer storage medium.
Background
With the rapid development of mobile internet services, mobile networks also need to deploy more base stations to increase higher network capacity. The deployment of the base station firstly needs to solve the data return problem, namely, the data intercommunication between the base station and the mobile core network is completed. In a traditional data return mode, optical fibers are directly deployed between a base station and a transmission switch, so that high-speed, stable and high-reliability transmission guarantee is provided. However, the deployment cost of the transmission mode of the straight-through optical fiber is high, the construction time is long, and as the base station deploys and encrypts gradually, not all the sites have the condition for deploying the straight-through optical fiber. In order to improve the deployment flexibility and solve the deployment problem in the absence of a wired backhaul link, a wireless backhaul transmission mode is adopted.
The wireless return network consists of a user service base station, a return CPE and a return base station, wherein the user service base station provides wireless network access service for a user terminal, and the user service base station and the return CPE are integrated together on hardware. When the user service base station wants to transmit user uplink data to the core network, the user service base station transmits the data to the return base station through the user service base station by virtue of an uplink wireless return link, and the return base station transmits the data to the core network by utilizing a straight-through optical fiber link or other wireless return links; correspondingly, when the core network wants to send the user downlink data to the user service base station and then transmit the user downlink data to the user terminal, the core network firstly transmits the data to the backhaul base station, the backhaul base station then sends the data to the user service base station by means of the downlink wireless link, and the user service base station transmits the data to the user terminal.
In the existing wireless backhaul scheme, when only one wireless backhaul link exists, the user serving base station directly sends data to the unique relay base station, or the unique relay base station sends data to the user serving base station. However, as the deployment density of base stations increases, the wireless backhaul scheme will be more widely applied, and at the same time, the network will also become more complex, wireless network signals of multiple frequencies and multiple cells are overlapped, and for a user service base station, multiple backhaul links may be selected at the same time, and how to improve the service efficiency of all wireless links at this time, and selecting a suitable link among multiple wireless links provides differentiated service capability for users of different priorities becomes a problem to be solved.
Disclosure of Invention
Embodiments of the present invention provide a data transmission method, a base station, and a computer storage medium, which solve the problem in the prior art that a suitable link cannot be selected for high-priority service data for transmission.
In order to achieve the above purpose, the embodiment of the invention adopts the following technical scheme:
in a first aspect provided in an embodiment of the present invention, a data transmission method is provided, where the method includes:
identifying the priority of service data to be returned by a base station;
returning the service data through a target wireless return link under the condition that the priority of the service data is within a preset range, wherein the target wireless return link is a wireless return link between the base station and an adjacent cell of the base station and corresponding to the adjacent cell with the highest wireless signal intensity when a target frequency point is used; the target frequency point is a frequency point which has the least number of cells used by the cell served by the base station and the adjacent cell and has the wireless signal intensity greater than or equal to a threshold when the cell is used, or a frequency point which has the least number of cells used by the cell served by the base station and the adjacent cell and has the wireless signal intensity greater than or equal to the threshold when the cell is used by the adjacent cell.
Preferably, before the returning the service data through the target wireless backhaul link, the method further includes:
determining a target frequency point;
and determining a target wireless backhaul link according to the target frequency point.
Further preferably, the determining the target frequency point includes:
measuring the frequency point currently used by each adjacent cell and the wireless signal intensity when the frequency point is used;
selecting a returned available frequency point set from the currently used frequency points of each adjacent cell;
counting the number of cells used by the adjacent cells and the cell served by the base station for each returned available frequency point meeting a first set condition in the returned available frequency point set; the first set condition is that the wireless signal strength is greater than or equal to a threshold when the base station is used by the adjacent cell, or the wireless signal strength is greater than or equal to a threshold when the base station is used by a cell served by the base station and the adjacent cell;
and sequentially determining whether a wireless backhaul link using a backhaul available frequency point exists according to the sequence of the number of used cells of each backhaul available frequency point from large to small, if so, the backhaul available frequency point is a target frequency point, and if not, determining whether a wireless backhaul link using a next backhaul available frequency point of the backhaul available frequency point exists until the target frequency point is determined.
Further preferably, when the first setting condition is that the wireless signal strength is greater than or equal to a threshold when the backhaul available frequency point set is used by the neighboring cell, the counting the number of cells used by the neighboring cell and the cell served by the base station for each backhaul available frequency point satisfying the first setting condition in the backhaul available frequency point set includes:
counting the number of first cells used by the adjacent cells of each backhaul available frequency point meeting a first set condition in a backhaul available frequency point set, and superposing the number of cells used by the cells served by the base station of the backhaul available frequency point on the number of the first cells to obtain the number of second cells used by each backhaul available frequency point.
Further preferably, the determining the target frequency point includes:
measuring the frequency point currently used by each adjacent cell and the wireless signal intensity when the frequency point is used;
selecting a returned available frequency point set from the currently used frequency points of each adjacent cell;
selecting a backhaul available frequency point meeting a second setting condition from the set of backhaul available frequency points, wherein the second setting condition comprises a wireless backhaul link using the backhaul available frequency point;
and determining backhaul available frequency points meeting a third set condition as target frequency points from the backhaul available frequency points meeting the second set condition, wherein the third set condition includes a frequency point which has the least number of cells used by the base station and the adjacent cell and has a wireless signal strength greater than or equal to a threshold when being used, or a frequency point which has the least number of cells used by the base station and the adjacent cell and has a wireless signal strength greater than or equal to a threshold when being used by the adjacent cell.
Further preferably, the determining the target wireless backhaul link according to the target frequency point includes:
if the number of the adjacent cells with the highest wireless signal intensity is multiple when the target frequency point is used, selecting one adjacent cell from the multiple adjacent cells, and taking a wireless return link corresponding to the adjacent cell as a target wireless return link.
In a second aspect of the embodiments of the present invention, a base station is provided, including:
the identification module is used for identifying the priority of the service data to be transmitted back by the base station;
a backhaul module, configured to backhaul the service data through a target wireless backhaul link when the priority of the service data is within a preset range, where the target wireless backhaul link is a wireless backhaul link between the base station and an adjacent cell of the base station, and corresponds to the adjacent cell with the highest wireless signal intensity when a target frequency point is used; the target frequency point is a frequency point which has the least number of cells used by the cell served by the base station and the adjacent cell and has the wireless signal intensity greater than or equal to a threshold when the cell is used, or a frequency point which has the least number of cells used by the cell served by the base station and the adjacent cell and has the wireless signal intensity greater than or equal to the threshold when the cell is used by the adjacent cell.
Preferably, the base station further includes:
the determining module is used for determining a target frequency point;
the determining module is further configured to determine a target wireless backhaul link according to the target frequency point.
Preferably, when determining the target frequency point, the determining module is specifically configured to:
measuring the frequency point currently used by each adjacent cell and the wireless signal intensity when the frequency point is used;
selecting a returned available frequency point set from the currently used frequency points of each adjacent cell;
counting the number of cells used by the adjacent cells and the cell served by the base station for each returned available frequency point meeting a first set condition in the returned available frequency point set; the first set condition is that the wireless signal strength is greater than or equal to a threshold when the base station is used by the adjacent cell, or the wireless signal strength is greater than or equal to a threshold when the base station is used by a cell served by the base station and the adjacent cell;
and sequentially determining whether a wireless backhaul link using a backhaul available frequency point exists according to the sequence of the number of used cells of each backhaul available frequency point from large to small, if so, the backhaul available frequency point is a target frequency point, and if not, determining whether a wireless backhaul link using a next backhaul available frequency point of the backhaul available frequency point exists until the target frequency point is determined.
Preferably, when the first setting condition is that the wireless signal strength is greater than or equal to a threshold when the first setting condition is used by the adjacent cell, the determining module counts the number of cells used by the adjacent cell and the cell served by the base station for each backhaul available frequency point satisfying the first setting condition in the backhaul available frequency point set, and is specifically configured to:
counting the number of first cells used by the adjacent cells of each backhaul available frequency point meeting a first set condition in a backhaul available frequency point set, and superposing the number of cells used by the cells served by the base station of the backhaul available frequency point on the number of the first cells to obtain the number of second cells used by each backhaul available frequency point.
Further preferably, when determining the target frequency point, the determining module is specifically configured to:
measuring the frequency point currently used by each adjacent cell and the wireless signal intensity when the frequency point is used;
selecting a returned available frequency point set from the currently used frequency points of each adjacent cell;
selecting a backhaul available frequency point meeting a second setting condition from the set of backhaul available frequency points, wherein the second setting condition comprises a wireless backhaul link using the backhaul available frequency point;
and determining backhaul available frequency points meeting a third set condition as target frequency points from the backhaul available frequency points meeting the second set condition, wherein the third set condition includes a frequency point which has the least number of cells used by the base station and the adjacent cell and has a wireless signal strength greater than or equal to a threshold when being used, or a frequency point which has the least number of cells used by the base station and the adjacent cell and has a wireless signal strength greater than or equal to a threshold when being used by the adjacent cell.
Preferably, when determining the target wireless backhaul link according to the target frequency point, the determining module is specifically configured to:
if the number of the adjacent cells with the highest wireless signal intensity is multiple when the target frequency point is used, selecting one adjacent cell from the multiple adjacent cells, and taking a wireless return link corresponding to the adjacent cell as a target wireless return link.
In a third aspect of the embodiments of the present invention, a base station is provided, including: a processor, a memory, and a communication interface, wherein:
the memory is configured to store computer executable instructions, and when the base station is running, the processor executes the computer executable instructions stored in the memory to cause the base station to perform the data transmission method according to the first aspect.
In a fourth aspect of embodiments of the present invention, there is provided a computer storage medium, including computer instructions, which, when run on a base station, cause the base station to perform the data transmission method according to the first aspect.
In a fifth aspect of the embodiments of the present invention, there is provided a computer program product, which when run on a computer, causes the computer to execute the data transmission method according to the first aspect.
The data transmission method, the base station and the computer storage medium provided by the embodiment of the invention identify the priority of the service data to be returned by the base station; returning the service data through a target wireless return link under the condition that the priority of the service data is within a preset range, wherein the target wireless return link is a wireless return link between a base station and an adjacent cell of the base station and corresponding to the adjacent cell with the highest wireless signal intensity when a target frequency point is used; the target frequency point is a frequency point which has the least number of cells used by the cell served by the base station and the adjacent cell and has the wireless signal intensity greater than or equal to the threshold when being used, or a frequency point which has the least number of cells used by the cell served by the base station and the adjacent cell and has the wireless signal intensity greater than or equal to the threshold when being used by the adjacent cell, among frequency points used by the wireless backhaul links between the base station and the adjacent cells.
Compared with the prior art that a proper link cannot be selected from a plurality of wireless links to provide service for high-priority service data, the technical scheme can select a target wireless backhaul link for the high-priority service data to transmit data, and in addition, because the target wireless backhaul link in the scheme is a wireless backhaul link between a base station and an adjacent cell of the base station, which corresponds to the adjacent cell of the base station with the highest wireless signal intensity when a target frequency point is used, the transmission rate of the high-priority service data can be 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 only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is an application scenario diagram provided in an embodiment of the present invention;
fig. 2 is a flowchart of a data transmission method according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a base station according to an embodiment of the present invention.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
For the convenience of clearly describing the technical solutions of the embodiments of the present invention, in the embodiments of the present invention, the words "first", "second", and the like are used to distinguish the same items or similar items with basically the same functions or actions, and those skilled in the art can understand that the words "first", "second", and the like do not limit the quantity and execution order.
It should be noted that, the communication generally includes two types, namely, fronthaul and backhaul, where: the forward transmission refers to data transmission between the terminal and the ue, while the backward transmission refers to data transmission between the ue, the backward base station, and the core network, and the link used when the ue, the backward base station, and the core network transmit data is called a wireless backward link, which includes an uplink transmission link and a downlink transmission link.
As shown in fig. 1, an application scenario provided in the embodiment of the present invention includes: a user service base station, a plurality of neighboring cells (the neighboring cells are respectively cells served by different backhaul base stations, for example, the neighboring cells served by backhaul base station 1 in fig. 1 are a1, a2, and a3), and a core network, where the user service base station and the neighboring cells form a plurality of wireless backhaul links (abbreviated as backhaul links in fig. 1 and indicated by solid lines), when the user service base station intends to transmit user uplink data to the core network, the user service base station sends the data to the neighboring cells by means of the wireless backhaul links, the neighboring cells perform next-level transmission, and finally transmit the data to the core network by using a direct optical fiber link or other wireless backhaul links, and in this application scenario, an appropriate link is mainly selected from the plurality of wireless backhaul links between the user service base station and the neighboring cells. It should be noted that there are multiple neighboring cells (e.g. from a1-n) between the user service base station in fig. 1, but since not every neighboring cell can be used as backhaul, the number of wireless links existing between the user service base station and the neighboring cells is not necessarily n, where in fig. 1, the solid line connection between the user service base station and the neighboring cells represents the existence of wireless backhaul links (e.g. backhaul links a2 and a3 in fig. 1), and the dotted line represents the absence of wireless backhaul links (e.g. backhaul links a1 and n in fig. 1) between the user service base station and the neighboring cells. In addition, the dashed lines between the neighboring cells and the core network indicate that the service data may not directly reach the core network through the neighboring cells, but may be transmitted at a next stage, which is not described in detail herein.
An embodiment of the present invention provides a data transmission method, as shown in fig. 2, the method includes:
201. and identifying the priority of the service data to be transmitted back by the base station.
For example, the method for identifying the priority of the service data to be returned by the base station may be based on a QCI identifier when the service data to be returned is identified, or may be based on the resolution of the destination address of the service data, so as to determine the priority of the service data to be returned according to the QCI identifier or the destination address of the service data. For example: defining the priority of the service data with QCI less than or equal to 5 as 1, or defining the priority of the service data with IMSI or IMEI as all services of the user in the appointed list as 2, and defining the priority of the service data with the destination address as the appointed domain name or IP address list as 3.
202. And returning the service data through the target wireless return link under the condition that the priority of the service data is within a preset range.
For example, the execution subject in steps 201 and 202 may be a customer service base station, or a backhaul CPE integrated in the customer service base station.
For example, the preset range is set according to the user's needs, for example, the preset range is a high-priority service range, and specifically, the preset range may be set to [1,5], so that when the priority of the service data is in a range of 1-5, the service data is a high-priority service. Of course, the preset range may also be set to other values, and in the present scheme, as long as the priority of the service data is within the preset range, the service data is returned through the target wireless return link.
The target wireless backhaul link is a wireless backhaul link between the base station and an adjacent cell of the base station, and corresponds to an adjacent cell with the highest wireless signal strength when the target frequency point is used.
For example, referring to fig. 1, the target wireless backhaul link is one of the wireless backhaul links between the serving base station and the neighboring cells (one of backhaul links a2 and a3 shown by solid lines in fig. 1), and assuming that the target wireless backhaul link is backhaul link a3 in fig. 1, the backhaul link a3 is necessarily corresponding to the neighboring cell a3 with the highest wireless signal strength when the target frequency point is used.
In fig. 1, although the neighboring cells of the user serving base station include a1, a2, a3 … … n, since the user serving base station only has wireless backhaul links with the neighboring cells a2 and a3, respectively, i.e., the neighboring cells a2 and a3 can be used as backhaul, the finally selected target wireless backhaul link is one of backhaul links a2 and a3 indicated by solid lines in fig. 1.
The target frequency point is a frequency point, among frequency points used by the wireless backhaul link between the base station and the adjacent cell, where the number of cells used by the cell served by the base station and the adjacent cell is the smallest and the wireless signal strength when used is greater than or equal to the threshold, or the number of cells used by the cell served by the base station and the adjacent cell is the smallest and the wireless signal strength when used by the adjacent cell is greater than or equal to the threshold.
For example, the target frequency point is a frequency point used by a wireless backhaul link existing between the base station and the adjacent cell, specifically, as shown in fig. 1, the target frequency point is one of frequency points used by backhaul link a2 and backhaul link a3 in fig. 1, and the target frequency point needs to simultaneously satisfy a frequency point that is the minimum number of cells used by the cell served by the base station and the adjacent cell and the wireless signal strength when the target frequency point is used is greater than or equal to a threshold, or the target frequency point needs to simultaneously satisfy a frequency point that is the minimum number of cells used by the cell served by the base station and the adjacent cell and the wireless signal strength when the target frequency point is used is greater than or equal to the threshold.
For example, the threshold is a radio signal strength, for example, the radio signal strength measured by RSRP in an LTE network may be set to-105 dBm, the radio signal strength lower than the transmission threshold indicates that the interference of the neighboring cell to the wireless backhaul link is small and may not be considered, the specific size of the threshold should be set according to the degree of acceptance of the co-frequency interference by the operator, and if the overlapping phenomenon of the cells of the network itself is serious and the co-frequency interference is ubiquitous, the operator accepts the co-frequency interference of a certain degree, the value may be set to be slightly higher; this value may be set slightly lower if the operator places more emphasis on the impact of co-channel interference on the radio link.
Preferably, before returning the traffic data through the target wireless backhaul link in step 202, the method further includes:
202a, determining a target frequency point.
Preferably, the step 202a specifically includes the following steps:
a1, measuring the frequency point used by each adjacent cell and the wireless signal intensity when using the frequency point.
And A2, selecting a backhaul available frequency point set from the frequency points currently used by each adjacent cell.
And A3, counting the number of the cells used by the adjacent cells and the cells served by the base station for each backhaul available frequency point meeting the first set condition in the backhaul available frequency point set.
The first setting condition is that the wireless signal strength is greater than or equal to a threshold when the base station is used by an adjacent cell, or the first setting condition is that the wireless signal strength is greater than or equal to the threshold when the base station is used by a cell served by the base station and the adjacent cell.
Further preferably, when the first set condition is that the radio signal strength when used by the neighboring cell is greater than or equal to the threshold, step a3 may be implemented by:
counting the number of first cells used by adjacent cells of each backhaul available frequency point meeting a first set condition in the set of backhaul available frequency points, and superposing the number of cells used by cells served by the base station of the backhaul available frequency point on the number of the first cells to obtain the number of second cells used by each backhaul available frequency point.
A4, according to the sequence of the number of used cells of each returned available frequency point, determining whether a wireless returned link using a returned available frequency point exists, if yes, the returned available frequency point is a target frequency point, if not, determining whether a wireless returned link using the next returned available frequency point of the returned available frequency point exists, until the target frequency point is determined.
Illustratively, based on the above steps A1-A4, specific implementation procedures are given below. The following may be specifically referred to for the process:
step 1: the frequency point used by the user service base station to measure the adjacent cell currently and the wireless signal intensity when using the frequency point are: adjacent cell a-f1(-90dBm), adjacent cell b-f2(-93dBm), adjacent cell c-f3(-95dBm), adjacent cell d-f4(-99dBm), adjacent cell e-f5(-109dBm), adjacent cell f-f1(-99dBm), adjacent cell g-f6(-98dBm), adjacent cell h-f3(-100dBm), adjacent cell i-f6(-85dBm), adjacent cell j-f1(-102 dBm).
Step 2: specifically, it is assumed that the frequency points defined by the operator and used as backhaul are f1\ f2\ f3\ f5\ f6, so that the backhaul available frequency points are selected from the measurement frequency points in the first step, and the number of cells with the signal strength higher than the transmission threshold (assuming that the threshold is-105 dBm measured by RSRP) in the backhaul available frequency points is counted as: f1-3, f2-1, f3-2 and f6-2, wherein the frequency points used by the cells of the base station are f2, f3 and f7, the number of the cells of the base station is added to the statistical result, and the f7 is not the backhaul available frequency point defined by the operator, so that the f7 is not considered; the number of the working cells of each backhaul available frequency point is f1-3, f2-2, f3-3 and f 6-2.
And 3, sorting the returned available frequency points according to the number of the cells, and obtaining f2 ═ f6 ═ f1 ═ f3, wherein f2 and f6 can be regarded as high-quality frequency points, and f1 and f3 are suboptimal-quality frequency points.
And 4, sequentially judging whether a wireless backhaul link using each backhaul available frequency point exists or not from large to small, namely judging whether an adjacent cell using the frequency point and serving as backhaul exists or not.
For example, it is first determined from f2 and f6 that if there are neighboring cells serving as backhaul using f2 and f6, then f2 and f6 are target frequency points. And if no adjacent cell using f2 and f6 for backhaul exists, determining a target frequency point from f1 and f 3.
Note that, in the above step 4, the identifier of the neighboring cell that can be used as a wireless backhaul is already stored in advance when the determination is made. For example, in the neighboring cells corresponding to the backhaul available frequency points f2 and f6, the neighboring cell b and the neighboring cell i may be used as the backhaul cells, and then f2 and f6 used by the neighboring cell b and the neighboring cell i are the target frequency points.
Illustratively, the step 202a may be specifically realized by:
and B1, measuring the frequency point currently used by each adjacent cell and the wireless signal strength when the frequency point is used.
B2, selecting the back transmission available frequency point set from the frequency points currently used by each adjacent cell.
B3, selecting the backhaul available frequency point satisfying the second set condition from the set of backhaul available frequency points.
The second setting condition includes that there exists a wireless backhaul link using a backhaul available frequency point.
And B4, determining the backhaul available frequency point meeting the third setting condition from the backhaul available frequency points meeting the second setting condition as a target frequency point.
The third setting condition includes a frequency point at which the number of cells used by the base station and the adjacent cell is the minimum and the radio signal strength when used is greater than or equal to the threshold, or a frequency point at which the number of cells used by the base station and the adjacent cell is the minimum and the radio signal strength when used by the adjacent cell is greater than or equal to the threshold.
It should be noted that the above-mentioned a1-a4 and B1-B4 are two different specific implementation schemes for determining the target frequency point. For some related concepts of B1-B4, reference may be made to the contents of A1-A4, which are not described in detail herein.
202b, determining a target wireless backhaul link according to the target frequency point.
Illustratively, the target frequency point determined based on the content of the above-mentioned step 202a needs to determine the target wireless backhaul link according to the target frequency point. Specifically, the method comprises the following steps: and selecting the wireless backhaul link between the adjacent cell with the highest wireless signal strength when the target frequency point is used and the user service base station as a target wireless backhaul link.
Further optionally, the step 202b may be specifically implemented by:
and if the number of the adjacent cells with the highest wireless signal intensity is more than one when the target frequency point is used, selecting one adjacent cell from the adjacent cells, and taking the wireless return link corresponding to the selected adjacent cell as the target wireless return link.
In the data transmission method provided by the embodiment of the invention, the priority of the service data to be transmitted back by the base station is identified; returning the service data through a target wireless return link under the condition that the priority of the service data is within a preset range, wherein the target wireless return link is a wireless return link between a base station and an adjacent cell of the base station and corresponding to the adjacent cell with the highest wireless signal intensity when a target frequency point is used; the target frequency point is a frequency point which has the least number of cells used by the cell served by the base station and the adjacent cell and has the wireless signal intensity greater than or equal to the threshold when being used, or a frequency point which has the least number of cells used by the cell served by the base station and the adjacent cell and has the wireless signal intensity greater than or equal to the threshold when being used by the adjacent cell, among frequency points used by the wireless backhaul links between the base station and the adjacent cells.
Compared with the prior art that a proper link cannot be selected from a plurality of wireless links to provide service for high-priority service data, the technical scheme can select a target wireless backhaul link for the high-priority service data to transmit data, and in addition, because the target wireless backhaul link in the scheme is a wireless backhaul link between a base station and an adjacent cell of the base station, which corresponds to the adjacent cell of the base station with the highest wireless signal intensity when a target frequency point is used, the transmission rate of the high-priority service data can be improved.
A base station provided in the embodiment of the present invention will be described below based on the related description in the embodiment of the data transmission method corresponding to fig. 1. Technical terms, concepts and the like related to the above embodiments in the following embodiments may refer to the above embodiments, and are not described in detail herein.
An embodiment of the present invention provides a base station, as shown in fig. 3, the base station 3 includes an identification module 31 and a backhaul module 32, where:
the identifying module 31 is configured to identify a priority of service data to be returned by the base station.
And a backhaul module 32, configured to backhaul the service data through the target wireless backhaul link when the priority of the service data is within a preset range.
The target wireless backhaul link is a wireless backhaul link between the base station and an adjacent cell of the base station, and corresponds to an adjacent cell with the highest wireless signal strength when the target frequency point is used.
For example, referring to fig. 1, the target wireless backhaul link is one of the wireless backhaul links between the serving base station and the neighboring cells (one of backhaul links a2 and a3 shown by solid lines in fig. 1), and assuming that the target wireless backhaul link is backhaul link a3 in fig. 1, the backhaul link a3 is necessarily corresponding to the neighboring cell a3 with the highest wireless signal strength when the target frequency point is used.
In fig. 1, although the neighboring cells of the user serving base station include a1, a2, a3 … … n, since the user serving base station only has wireless backhaul links with the neighboring cells a2 and a3, respectively, i.e., the neighboring cells a2 and a3 can be used as backhaul, the finally selected target wireless backhaul link is one of backhaul links a2 and a3 indicated by solid lines in fig. 1.
The target frequency point is a frequency point, among frequency points used by the wireless backhaul link between the base station and the adjacent cell, where the number of cells used by the cell served by the base station and the adjacent cell is the smallest and the wireless signal strength when used is greater than or equal to the threshold, or the number of cells used by the cell served by the base station and the adjacent cell is the smallest and the wireless signal strength when used by the adjacent cell is greater than or equal to the threshold.
For example, the target frequency point is a frequency point used by a wireless backhaul link existing between the base station and the adjacent cell, specifically, as shown in fig. 1, the target frequency point is one of frequency points used by backhaul link a2 and backhaul link a3 in fig. 1, and the target frequency point needs to simultaneously satisfy a frequency point that is the minimum number of cells used by the cell served by the base station and the adjacent cell and the wireless signal strength when the target frequency point is used is greater than or equal to a threshold, or the target frequency point needs to simultaneously satisfy a frequency point that is the minimum number of cells used by the cell served by the base station and the adjacent cell and the wireless signal strength when the target frequency point is used is greater than or equal to the threshold.
Preferably, the base station further includes: a determination module 33, wherein:
and the determining module 33 is configured to determine the target frequency point.
The determining module 33 is further configured to determine a target wireless backhaul link according to the target frequency point.
Preferably, when determining the target frequency point, the determining module is specifically configured to:
and measuring the currently used frequency point of each adjacent cell and the wireless signal intensity when the frequency point is used.
And selecting a back transmission available frequency point set from the frequency points currently used by each adjacent cell.
Counting the number of cells used by adjacent cells and cells served by a base station for each returned available frequency point meeting a first set condition in the returned available frequency point set; the first set condition is that the wireless signal strength is greater than or equal to the threshold when the base station is used by the adjacent cell, or the first set condition is that the wireless signal strength is greater than or equal to the threshold when the base station is used by the cell served by the base station and the adjacent cell.
And sequentially determining whether a wireless backhaul link using a backhaul available frequency point exists according to the sequence of the number of used cells of each backhaul available frequency point from large to small, if so, the backhaul available frequency point is a target frequency point, and if not, determining whether a wireless backhaul link using the next backhaul available frequency point of the backhaul available frequency point exists until the target frequency point is determined.
Preferably, the determining module counts the number of cells used by the neighboring cell and the cell served by the base station for each backhaul available frequency point satisfying the first setting condition in the backhaul available frequency point set, and is specifically configured to:
counting the number of first cells used by adjacent cells of each backhaul available frequency point meeting a first set condition in the set of backhaul available frequency points, and superposing the number of cells used by cells served by the base station of the backhaul available frequency point on the number of the first cells to obtain the number of second cells used by each backhaul available frequency point.
Preferably, when determining the target frequency point, the determining module 33 is further specifically configured to:
and measuring the currently used frequency point of each adjacent cell and the wireless signal intensity when the frequency point is used.
And selecting a back transmission available frequency point set from the frequency points currently used by each adjacent cell.
And selecting the backhaul available frequency point meeting a second set condition from the set of backhaul available frequency points, wherein the second set condition comprises the existence of a wireless backhaul link using the backhaul available frequency point.
And determining the backhaul available frequency points meeting a third set condition as target frequency points from the backhaul available frequency points meeting the second set condition, wherein the third set condition comprises the frequency point which has the least number of cells used by the base station and the adjacent cell and has the wireless signal intensity greater than or equal to the threshold when being used, or the frequency point which has the least number of cells used by the base station and the adjacent cell and has the wireless signal intensity greater than or equal to the threshold when being used by the adjacent cell.
Preferably, when determining the target wireless backhaul link according to the target frequency point, the determining module 33 is specifically configured to:
if the number of the adjacent cells with the highest wireless signal intensity is multiple when the target frequency point is used, selecting one adjacent cell from the multiple adjacent cells, and taking the wireless return link corresponding to the adjacent cell as the target wireless return link.
The base station provided by the embodiment of the invention identifies the priority of the service data to be transmitted back by the base station; returning the service data through a target wireless return link under the condition that the priority of the service data is within a preset range, wherein the target wireless return link is a wireless return link between a base station and an adjacent cell of the base station and corresponding to the adjacent cell with the highest wireless signal intensity when a target frequency point is used; the target frequency point is a frequency point which has the least number of cells used by the cell served by the base station and the adjacent cell and has the wireless signal intensity greater than or equal to the threshold when being used, or a frequency point which has the least number of cells used by the cell served by the base station and the adjacent cell and has the wireless signal intensity greater than or equal to the threshold when being used by the adjacent cell, among frequency points used by the wireless backhaul links between the base station and the adjacent cells.
Compared with the prior art that a proper link cannot be selected from a plurality of wireless links to provide service for high-priority service data, the technical scheme can select a target wireless backhaul link for the high-priority service data to transmit data, and in addition, because the target wireless backhaul link in the scheme is a wireless backhaul link between a base station and an adjacent cell of the base station, which corresponds to the adjacent cell of the base station with the highest wireless signal intensity when a target frequency point is used, the transmission rate of the high-priority service data can be improved.
An embodiment of the present invention provides a base station, including: a processor, a memory, and a communication interface, wherein:
the memory is used for storing computer executable instructions, and when the base station is running, the processor executes the computer executable instructions stored by the memory to cause the base station to execute the data transmission method as described above.
Illustratively, the memory may include high-speed random access memory, and may also include non-volatile memory, such as a magnetic disk storage device, a flash memory device, or other volatile solid-state storage device.
For example, the communication interface is used to receive the service data to be transmitted back, which is sent by the terminal, and the communication interface may be an interface circuit.
For example, the Processor may be a Central Processing Unit (CPU), a general purpose Processor, a Digital Signal Processor (DSP), an Application-Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, a transistor logic device, a hardware component, or any combination thereof. Which may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the disclosure. The processor may also be a combination of computing functions, e.g., comprising one or more microprocessors, DSPs, and microprocessors, among others.
Embodiments of the present invention provide a computer storage medium comprising computer instructions that, when executed on a base station, cause the base station to perform a data transmission method as described above.
By way of example, computer-readable storage media can be any available media that can be accessed by a computer or a data storage device, such as a server, data center, etc., that includes one or more available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.
Embodiments of the present invention provide a computer program product, which, when run on a computer, causes the computer to perform the data transmission method as described above.
Illustratively, the computer program product described above comprises one or more computer instructions.
Through the above description of the embodiments, it is clear to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely used as an example, and in practical applications, the above function distribution may be completed by different functional modules according to needs, that is, the internal structure of the device may be divided into different functional modules to complete all or part of the above described functions. For the specific working processes of the system, the apparatus and the unit described above, reference may be made to the corresponding processes in the foregoing method embodiments, and details are not described here again.
In the several embodiments provided in the present application, it should be understood that the disclosed base station may be implemented in other manners. For example, the above-described embodiments of the base station are merely illustrative, and for example, the division of the modules or units is only one logical division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
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 units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (7)
1. A method of data transmission, the method comprising:
identifying the priority of service data to be returned by a base station;
returning the service data through a target wireless return link under the condition that the priority of the service data is within a preset range, wherein the target wireless return link is a wireless return link between the base station and an adjacent cell of the base station and corresponding to the adjacent cell with the highest wireless signal intensity when a target frequency point is used; the target frequency point is a frequency point which has the least number of cells used by the cell served by the base station and the adjacent cell and has the wireless signal intensity greater than or equal to a threshold when being used, or a frequency point which has the least number of cells used by the cell served by the base station and the adjacent cell and has the wireless signal intensity greater than or equal to the threshold when being used by the adjacent cell, among frequency points used by the wireless backhaul links between the base station and the adjacent cells;
before the returning the traffic data over the target wireless backhaul link, the method further comprises: determining a target frequency point; determining a target wireless return link according to the target frequency point;
the determining the target frequency point comprises: measuring the frequency point currently used by each adjacent cell and the wireless signal intensity when the frequency point is used; selecting a returned available frequency point set from the currently used frequency points of each adjacent cell;
counting the number of cells used by the adjacent cells and the cell served by the base station for each returned available frequency point meeting a first set condition in the returned available frequency point set; the first set condition is that the wireless signal strength is greater than or equal to a threshold when the base station is used by the adjacent cell, or the wireless signal strength is greater than or equal to a threshold when the base station is used by a cell served by the base station and the adjacent cell;
and sequentially determining whether a wireless backhaul link using a backhaul available frequency point exists according to the sequence of the number of used cells of each backhaul available frequency point from large to small, if so, the backhaul available frequency point is a target frequency point, and if not, determining whether a wireless backhaul link using a next backhaul available frequency point of the backhaul available frequency point exists until the target frequency point is determined.
2. The method according to claim 1, wherein when the first predetermined condition is that the wireless signal strength is greater than or equal to a threshold when used by the neighboring cell, the counting the number of cells used by the neighboring cell and the cell served by the base station for each backhaul available frequency point satisfying the first predetermined condition in the set of backhaul available frequency points comprises:
counting the number of first cells used by the adjacent cells of each backhaul available frequency point meeting a first set condition in a backhaul available frequency point set, and superposing the number of cells used by the cells served by the base station of the backhaul available frequency point on the number of the first cells to obtain the number of second cells used by each backhaul available frequency point.
3. The method of claim 1, wherein the determining the target frequency point comprises:
measuring the frequency point currently used by each adjacent cell and the wireless signal intensity when the frequency point is used;
selecting a returned available frequency point set from the currently used frequency points of each adjacent cell;
selecting a backhaul available frequency point meeting a second setting condition from the set of backhaul available frequency points, wherein the second setting condition comprises a wireless backhaul link using the backhaul available frequency point;
and determining backhaul available frequency points meeting a third set condition as target frequency points from the backhaul available frequency points meeting the second set condition, wherein the third set condition includes a frequency point which has the least number of cells used by the base station and the adjacent cell and has a wireless signal strength greater than or equal to a threshold when being used, or a frequency point which has the least number of cells used by the base station and the adjacent cell and has a wireless signal strength greater than or equal to a threshold when being used by the adjacent cell.
4. The method of claim 1, wherein the determining the target wireless backhaul link according to the target frequency point comprises:
if the number of the adjacent cells with the highest wireless signal intensity is multiple when the target frequency point is used, selecting one adjacent cell from the multiple adjacent cells, and taking a wireless return link corresponding to the adjacent cell as a target wireless return link.
5. A base station, comprising:
the identification module is used for identifying the priority of the service data to be transmitted back by the base station;
a backhaul module, configured to backhaul the service data through a target wireless backhaul link when the priority of the service data is within a preset range, where the target wireless backhaul link is a wireless backhaul link between the base station and an adjacent cell of the base station, and corresponds to the adjacent cell with the highest wireless signal intensity when a target frequency point is used; the target frequency point is a frequency point which has the least number of cells used by the cell served by the base station and the adjacent cell and has the wireless signal intensity greater than or equal to a threshold when being used, or a frequency point which has the least number of cells used by the cell served by the base station and the adjacent cell and has the wireless signal intensity greater than or equal to the threshold when being used by the adjacent cell, among frequency points used by the wireless backhaul links between the base station and the adjacent cells;
the base station further comprises: the determining module is used for determining a target frequency point; the determining module is further used for determining a target wireless backhaul link according to the target frequency point;
the determining module is specifically configured to, when determining the target frequency point: measuring the frequency point currently used by each adjacent cell and the wireless signal intensity when the frequency point is used; selecting a returned available frequency point set from the currently used frequency points of each adjacent cell;
counting the number of cells used by the adjacent cells and the cell served by the base station for each returned available frequency point meeting a first set condition in the returned available frequency point set; the first set condition is that the wireless signal strength is greater than or equal to a threshold when the base station is used by the adjacent cell, or the wireless signal strength is greater than or equal to a threshold when the base station is used by a cell served by the base station and the adjacent cell;
and sequentially determining whether a wireless backhaul link using a backhaul available frequency point exists according to the sequence of the number of used cells of each backhaul available frequency point from large to small, if so, the backhaul available frequency point is a target frequency point, and if not, determining whether a wireless backhaul link using a next backhaul available frequency point of the backhaul available frequency point exists until the target frequency point is determined.
6. A base station, comprising: a processor, a memory, and a communication interface, wherein:
the memory is configured to store a computer program, which the processor executes when the base station is running, to cause the base station to perform the data transmission method according to any one of claims 1-4.
7. A computer storage medium, comprising a computer program which, when run on a base station, causes the base station to perform the data transmission method of any one of claims 1-4.
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| US8964781B2 (en) * | 2008-11-05 | 2015-02-24 | Qualcomm Incorporated | Relays in a multihop heterogeneous UMTS wireless communication system |
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| US10021600B2 (en) * | 2013-01-02 | 2018-07-10 | Qualcomm Incorporated | Backhaul traffic reliability in unlicensed bands using spectrum sensing and channel reservation |
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| CN103299685A (en) * | 2011-01-11 | 2013-09-11 | 高通股份有限公司 | Method and apparatus for management of network resources |
| CN103002467A (en) * | 2011-09-13 | 2013-03-27 | 中兴通讯股份有限公司 | Pre-configuration method, pre-configuration system and access points for return link resources |
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