CN106792793B - Special subframe configuration method, device and base station - Google Patents
Special subframe configuration method, device and base station Download PDFInfo
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- CN106792793B CN106792793B CN201610997569.9A CN201610997569A CN106792793B CN 106792793 B CN106792793 B CN 106792793B CN 201610997569 A CN201610997569 A CN 201610997569A CN 106792793 B CN106792793 B CN 106792793B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H—ELECTRICITY
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0803—Configuration setting
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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
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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Abstract
The invention discloses a method, a device and a base station for special subframe configuration, relates to the technical field of communication information, and can solve the problem that a network coverage hole is formed in the coverage area of the base station due to the fact that the base station needs to be restarted when the proportion of special subframes is modified, so that normal use of a network by a user is influenced. The method comprises the following steps: monitoring whether a target network has remote co-frequency interference; monitoring the use state of resources for service transmission in a target network; detecting a ratio set to which the current ratio of the special subframe in the target network belongs, wherein the ratio set comprises a first ratio set and a second ratio set, the first ratio set comprises the ratio corresponding to the special subframe when the number of symbols occupied by a guard interval time slot is smaller than a preset value, and the second ratio set comprises the ratio corresponding to the special subframe when the number of symbols occupied by the guard interval time slot is larger than or equal to the preset value; and adjusting or maintaining the current ratio based on whether the target network has remote co-channel interference, the use state and the ratio set to which the current ratio belongs.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a special subframe configuration method, an apparatus, and a base station.
Background
In a TD-LTE (Time Division Long Term Evolution) system, a radio frame length is 10ms, and is composed of two half frames with a length of 5ms, each half frame is composed of 5 subframes with a length of 1ms, wherein 4 common subframes and 1 special subframe are included in the 5 subframes. The special subframe includes 3 special time slots, namely a Downlink pilot time slot (DwPTS, Downlink pilot time slot), a Guard interval (GP, Guard period) and an Uplink pilot time slot (UpPTS, Uplink pilot time slot), and the proportion of the DwPTS, the GP and the UpPTS in symbols of the special subframe (the proportion of the special subframe) needs to be uniformly configured in the whole network. GP plays a role of protecting intervals in the special subframe, so that co-frequency interference between network downlink data transmission and network uplink data transmission is avoided, the protecting distance is long when the number of GP symbols is large, and certain resource waste is caused when the number of GP symbols is too large; the number of DwPTS symbols affects the downlink rate of service transmission, so that the number of GP symbols is configured more in an area requiring co-channel interference resistance, and the number of DwPTS symbols is configured more in an area requiring a large service transmission resource. In the prior art, in order to increase the rate of downlink transmission of services, the DwPTS symbol number is usually configured to be larger when configuring the ratio of special subframes in a network, for example, the ratio of special subframes is configured to be 9: 3: 2 or 10: 2, but in the network, co-channel interference may be generated due to atmospheric waveguides and the like, which means that the ratio of special subframes needs to be modified, and the GP symbol number is increased to reduce the interference. In the prior art, if the ratio of the special subframe needs to be modified, a modification instruction needs to be manually input by a background network manager, and the base station can be effectively used only by restarting after modification, but restarting the base station inevitably causes the base station to quit service in a short time, and a network coverage hole is formed in the coverage area of the base station, so that the normal use of a network by a user is influenced.
Disclosure of Invention
The embodiment of the invention provides a special subframe configuration method, a special subframe configuration device and a base station, which can solve the problem that the base station can be restarted to take effect only when the special subframe ratio is modified, so that the base station quits service in a short time, a network coverage hole is formed in the coverage area of the base station, and the normal use of a network by a user is influenced.
In a first aspect, the present invention provides a special subframe configuration method, including:
acquiring a remote co-frequency interference monitoring result of whether a monitored target network has remote co-frequency interference or not; acquiring the monitored use state of resources for service transmission in the target network; detecting a ratio set to which the current ratio of the special subframe in the target network belongs, wherein the ratio set comprises a first ratio set and a second ratio set, the first ratio set comprises the ratio corresponding to the special subframe when the number of symbols occupied by a guard interval time slot is smaller than a preset value, and the second ratio set comprises the ratio corresponding to the special subframe when the number of symbols occupied by the guard interval time slot is larger than or equal to the preset value; and maintaining or adjusting the current ratio based on the remote same-frequency interference monitoring result and the use state according to the ratio set to which the current ratio belongs.
With reference to the first aspect, in a first implementation manner of the first aspect, the maintaining or adjusting the current matching based on the remote co-channel interference monitoring result and the use state according to the matching set to which the current matching belongs includes:
and when the matching set to which the current matching belongs is the first matching set, maintaining or adjusting the current matching based on the remote same-frequency interference monitoring result.
With reference to the first implementation manner of the first aspect, in a second implementation manner of the first aspect, the remote co-channel interference monitoring result includes that remote co-channel interference exists in the target network or that remote co-channel interference does not exist in the target network;
the processing of maintaining or adjusting the current ratio based on the remote co-channel interference monitoring result comprises:
when the target network has long-distance same-frequency interference, adjusting the current ratio to the ratio belonging to the second ratio set;
and when no remote co-frequency interference exists in the target network, maintaining the current proportioning.
With reference to the first aspect, in a third implementation manner of the first aspect, the maintaining or adjusting the current matching based on the remote co-channel interference monitoring result and the use state according to the matching set to which the current matching belongs includes:
when the matching set to which the current matching belongs is a second matching set, judging whether the resources in the target network meet the resource requirement of service transmission based on the use state;
and maintaining or adjusting the current ratio based on whether the resources in the target network meet the resource requirements of service transmission and the remote co-channel interference monitoring result.
With reference to the third implementation manner of the first aspect, in a fourth implementation manner of the first aspect, the remote co-channel interference monitoring result includes that remote co-channel interference exists in the target network or that remote co-channel interference does not exist in the target network;
the processing of maintaining or adjusting the current ratio based on whether the resources in the target network meet the resource requirements of service transmission and the remote co-channel interference monitoring result comprises:
when the resources in the target network do not meet the resource requirements of service transmission and the target network does not have long-distance same-frequency interference, adjusting the current ratio to the ratio belonging to the first ratio set;
and when the resources in the target network meet the resource requirement of service transmission or long-distance same frequency interference exists in the target network, maintaining the current ratio.
With reference to the first aspect, in a fifth implementation manner of the first aspect, the method further includes:
the first ratio set and the second ratio set are preset.
With reference to the first aspect, in a sixth implementation manner of the first aspect, when the current matching ratio is adjusted, paging information is sent to a terminal within a coverage area of a target network, where the paging information carries the adjusted current matching ratio.
With reference to the first aspect, in a seventh implementation manner of the first aspect, the method further includes:
and when the current ratio is adjusted, carrying out data transmission according to the adjusted current ratio.
With reference to the first aspect, in an eighth implementation manner of the first aspect, when the current ratio is adjusted, an adjustment instruction is sent to a module that controls the ratio of the special subframe, where the adjustment instruction carries the adjusted current ratio.
In a second aspect, the present invention provides a special subframe configuration apparatus, including:
the remote co-channel interference monitoring result acquisition unit is used for acquiring a remote co-channel interference monitoring result of whether the monitored target network has remote co-channel interference;
a resource use state obtaining unit, configured to obtain a monitored use state of a resource used for service transmission in a target network;
the detection unit is used for detecting a ratio set to which the current ratio of the special subframe in the target network belongs, wherein the ratio set comprises a first ratio set and a second ratio set, the first ratio set comprises the ratio corresponding to the condition that the number of symbols occupied by the protection interval time slot in the special subframe is less than a preset value, and the second ratio set comprises the ratio corresponding to the condition that the number of symbols occupied by the protection interval time slot in the special subframe is greater than or equal to the preset value;
and the processing unit is used for maintaining or adjusting the current ratio based on the remote same-frequency interference monitoring result and the use state according to the ratio set to which the current ratio belongs.
With reference to the second aspect, in a first implementation manner of the second aspect, the processing unit is further configured to:
and when the matching set to which the current matching belongs is the first matching set, maintaining or adjusting the current matching based on the remote same-frequency interference monitoring result.
With reference to the first implementation manner of the second aspect, in a second implementation manner of the second aspect, the remote co-channel interference monitoring result includes that remote co-channel interference exists in the target network or does not exist in the target network; the processing unit is further configured to:
when the target network has long-distance same-frequency interference, adjusting the current ratio to the ratio belonging to the second ratio set;
and when no remote co-frequency interference exists in the target network, maintaining the current proportioning.
With reference to the second aspect, in a third implementation manner of the second aspect, wherein the processing unit is further configured to:
when the matching set to which the current matching belongs is a second matching set, judging whether the resources in the target network meet the resource requirement of service transmission based on the use state;
and maintaining or adjusting the current ratio based on whether the resources in the target network meet the resource requirements of service transmission and the remote co-channel interference monitoring result.
With reference to the third implementation manner of the second aspect, in a fourth implementation manner of the second aspect, the remote co-channel interference monitoring result includes that remote co-channel interference exists in the target network or does not exist in the target network; the processing unit is further configured to:
when the resources in the target network do not meet the resource requirements of service transmission and the target network does not have long-distance same-frequency interference, adjusting the current ratio to the ratio belonging to the first ratio set;
and when the resources in the target network meet the resource requirement of service transmission or long-distance same frequency interference exists in the target network, maintaining the current proportioning type.
With reference to the second aspect, in a fifth implementation manner of the second aspect, the method further includes:
and the setting unit is used for presetting the first proportioning set and the second proportioning set.
With reference to the second aspect, in a sixth implementation manner of the second aspect, the method further includes:
and the paging information sending unit is used for sending paging information to the terminal within the coverage range of the target network when the current ratio is adjusted, and the paging information carries the adjusted current ratio.
With reference to the second aspect, in a seventh implementation manner of the second aspect, the method further includes:
and the data transmission unit is used for transmitting data according to the adjusted current ratio when the current ratio is adjusted.
With reference to the second aspect, in an eighth implementation manner of the second aspect, the method further includes:
and the adjusting instruction sending unit is used for sending an adjusting instruction to the module for controlling the ratio of the special subframe when the current ratio is adjusted, and the adjusting instruction carries the adjusted current ratio.
In a third aspect, the present invention provides a base station, including:
a memory for storing an executable program;
an input/output interface for communicating with an external device;
the processor is used for executing the program stored in the memory, and is specifically used for acquiring a remote co-channel interference monitoring result of whether the monitored target network has remote co-channel interference or not; the method comprises the steps of monitoring the use state of resources used for service transmission in a target network; the system comprises a special subframe, a ratio set and a control unit, wherein the ratio set is used for detecting the ratio set to which the current ratio of the special subframe belongs in a target network, the ratio set comprises a first ratio set and a second ratio set, the first ratio set comprises the ratio corresponding to the special subframe when the number of symbols occupied by a protection interval time slot is smaller than a preset value, and the second ratio set comprises the ratio corresponding to the special subframe when the number of symbols occupied by the protection interval time slot is larger than or equal to the preset value; and the system is used for maintaining or adjusting the current ratio based on the remote same-frequency interference monitoring result and the use state according to the ratio set to which the current ratio belongs.
The invention provides a special subframe configuration method, a device and a base station, wherein a remote co-frequency interference monitoring result of whether a monitored target network has remote co-frequency interference or not and a use state of resources for service transmission in the target network are obtained, a matching set to which the current matching of a special subframe in the target network belongs is detected, and then the current matching of the special subframe is adjusted or maintained based on whether the target network has remote co-frequency interference or not, the use state and the matching set to which the current matching belongs. The base station automatically judges the ratio of the special subframes suitable in different states of the network according to whether the remote co-frequency interference exists in the target network and the using state of the resources of service transmission, and adjusts or maintains the ratio of the special subframes, so that the base station can adjust the special subframes in real time without manual intervention or service quit, the operation is simple, the time and the cost are saved, the network performance and the working efficiency can be improved, and the normal use of the network by a user is not influenced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 shows a schematic flow diagram of a method of special subframe configuration according to an embodiment of the invention;
FIG. 2 shows a schematic flow diagram of maintaining or adjusting a current stoichiometry in accordance with the special subframe configuration method of FIG. 1;
fig. 3 shows a schematic flow diagram of a method of special subframe configuration according to a further embodiment of the invention;
fig. 4 shows a schematic block diagram of an apparatus of a special subframe configuration according to an embodiment of the invention;
fig. 5 shows a schematic block diagram of an apparatus of a special subframe configuration according to a further embodiment of the present invention;
fig. 6 shows a schematic block diagram of a base station according to an embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
The embodiment of the invention is suitable for a scene of configuring the proportion of the special subframes, and the base station automatically judges the proportion of the suitable special subframes in different states of the network according to whether the remote co-frequency interference exists in the network and the resource requirement of service transmission, and adjusts or maintains the proportion of the special subframes.
Fig. 1 shows a schematic flow diagram of a special subframe configuration method 100 according to an embodiment of the invention. The method comprises the following steps: s110, obtaining a remote co-frequency interference monitoring result of whether the monitored target network has remote co-frequency interference; s120, acquiring the monitored use state of the resources for service transmission in the target network; s130, detecting a ratio set to which the current ratio of the special subframe in the target network belongs; and S140, maintaining or adjusting the current ratio based on the remote same-frequency interference monitoring result and the use state according to the ratio set to which the current ratio belongs.
In step S110, the remote co-channel interference monitoring result monitored by other devices may be directly obtained, or the remote co-channel interference monitoring result monitored by the device may be automatically monitored and obtained. The remote co-channel interference monitoring result comprises that remote co-channel interference exists in the target network or that remote co-channel interference does not exist in the target network.
In step S120, the use state of the resource for service transmission in the target network monitored by the other device may be directly obtained, or the use state of the resource for service transmission in the target network monitored by the other device may be automatically monitored and obtained.
In step S130, the ratio set includes a first ratio set and a second ratio set, where the first ratio set includes a ratio corresponding to a case where the number of symbols occupied by the guard interval time slot in the special subframe is smaller than a preset value, and the second ratio set includes a ratio corresponding to a case where the number of symbols occupied by the guard interval time slot in the special subframe is greater than or equal to the preset value. The ratio set may include only one ratio or may include a plurality of ratios. The preset value can be preset or can be set in real time, and the specific value can be set according to specific network conditions, for example, set to be any natural number from 0 to 10. The 3Gpp protocol specifies the ratio of a plurality of special subframes, for example, 9: 3: 2, 10: 2, 3: 9: 2, etc., and each special subframe can be assigned to the first ratio set and the second ratio set according to the number of symbols occupied by the scene or guard interval timeslot used by the ratio.
In embodiments of the present invention, the first ratio set may comprise 3: 9: 2, and the second ratio set may comprise 9: 3: 2 and/or 10: 2.
In step S140, the current ratio is automatically determined and maintained or adjusted based on the remote co-channel interference monitoring result and the usage status, and manual participation is required, so that the operation is simple, and the time and the cost are saved.
In the embodiment of the invention, a monitored target network is obtained whether a remote co-frequency interference monitoring result of the remote co-frequency interference exists or not and a use state of resources for service transmission in the target network are obtained, a ratio set to which a current ratio of a special subframe in the target network belongs is detected, and then the current ratio of the special subframe is adjusted or maintained based on whether the remote co-frequency interference exists in the target network, the use state and the ratio set to which the current ratio belongs. The base station automatically judges the ratio of the special subframes suitable in different states of the network according to whether the remote co-frequency interference exists in the target network and the using state of the resources of service transmission, and adjusts or maintains the ratio of the special subframes, so that the base station can adjust the special subframes without manual intervention or service quit, the operation is simple, the time and the cost are saved, the network performance and the working efficiency can be improved, and the normal use of the network by a user is not influenced.
It should be noted that the method 100 in the embodiment of the present invention may run in real time, so that the ratio of the special subframes suitable in different states of the network may be self-determined in real time, and the ratio of the special subframes may be adjusted or maintained, and the special subframes may be adjusted in real time by the base station without manual intervention or service withdrawal of the base station.
Fig. 2 shows a schematic flow diagram of maintaining or adjusting a current stoichiometry in accordance with the special subframe configuration method 100 of fig. 1. In the method 100 shown in fig. 1, the step S140 in the embodiment of the present invention includes the following two cases. In the first case: and step S141, when the ratio set to which the current ratio belongs is the first ratio set, maintaining or adjusting the current ratio based on the remote same-frequency interference monitoring result. In the second case: step S142, when the matching set to which the current matching belongs is the second matching set, whether the resources in the target network meet the resource requirements of service transmission is judged based on the use state; step S143, based on whether the resource in the target network meets the resource requirement of the service transmission and the remote co-frequency interference monitoring result, the current ratio is maintained or adjusted.
In step S141, a specific implementation manner may include: when the target network has long-distance same-frequency interference, adjusting the current ratio to the ratio belonging to the second ratio set; and when no remote co-frequency interference exists in the target network, maintaining the current proportioning.
The ratio set to which the current ratio belongs is a first ratio set, and for the ratio in the first ratio set, the number of symbols occupied by the guard interval time slot in the special subframe is usually small, namely the ratio is suitable for the condition that no long-distance co-frequency interference exists in the target network, and at the moment, excessive GP is not needed in the target network to inhibit the long-distance co-frequency interference. When the current ratio belongs to the first ratio set, it is indicated that at this time, too many GP symbols are not set in the target network to suppress the remote co-frequency interference, so that a remote co-frequency interference monitoring result of whether the remote co-frequency interference exists in the target network needs to be obtained in real time, and whether the remote co-frequency interference exists in the target network is judged in real time, so that when the remote co-frequency interference occurs in the target network, the current ratio of special subframes in the target network can be adjusted in time, the GP symbols in the special subframes are added to suppress the remote co-frequency interference, so that the current ratio of the special subframes can be adapted to the state of the target network, and the working efficiency of the network. Therefore, when the long-distance co-frequency interference exists in the target network, the current ratio is adjusted to the ratio belonging to the second ratio set, and as the number of symbols occupied by the guard interval time slot in the special subframe of the second ratio set is generally large, the current ratio of the special subframe is adjusted through the step, and a plurality of GP symbols are configured to restrain the long-distance co-frequency interference. When the target network does not have remote same-frequency interference, the current ratio is maintained without being adjusted.
In step S143, specific execution manners may include: when the resources in the target network do not meet the resource requirements of service transmission and the target network does not have long-distance same-frequency interference, adjusting the current ratio to the ratio belonging to the first ratio set; and when the resources in the target network meet the resource requirement of service transmission or long-distance same frequency interference exists in the target network, maintaining the current ratio.
The matching set to which the current matching belongs is a second matching set, the number of symbols occupied by guard interval time slots in the special subframe is usually large, namely the method is suitable for the situation that long-distance co-frequency interference exists in a target network, and at the moment, the target network needs to configure a plurality of GP symbols to inhibit the long-distance co-frequency interference.
When the current ratio belongs to the second ratio set, it indicates that more GP symbols are set in the target network to suppress remote co-channel interference, and further indicates that the number of symbols of the DwPTS is less than the number of symbols of the DwPTS configured in the first ratio set, and correspondingly, resources available for service transmission in the target network at this time are less than the resources available for service transmission in the first ratio set, and at this time, it is necessary to obtain the use state of the monitored resources for service transmission in the target network in real time. When the resources in the target network do not meet the resource requirement of service transmission, the number of symbols of GP is reduced, and the number of symbols of DwPTS is increased or decreased to increase the resources available for service transmission. However, more GP symbols set in the target network are used to suppress long-distance co-channel interference, and if the number of GP symbols is to be reduced, it is necessary to determine whether more GP symbols are set in the target network to suppress long-distance co-channel interference. In this step, when it is determined that there is no remote co-frequency interference in the target network, the current ratio is adjusted to a ratio belonging to the first ratio set, that is, the number of symbols of GP is reduced, and the number of symbols of DwPTS is increased or decreased to increase resources available for service transmission. And if the resources in the target network meet the resource requirement of service transmission or the target network has long-distance same frequency interference, maintaining the current ratio.
It should be noted that, if the current ratio is adjusted to the ratio belonging to the second ratio set in step S141, step S142 may be continuously executed subsequently; if the current ratio is adjusted to the ratio belonging to the first ratio set in step S143, then step S141 may be continuously performed.
It can be understood that the obtaining of the usage state of the resource for service transmission in the monitored target network in step 120 can also be implemented by obtaining whether the traffic volume in the monitored target network reaches the preset traffic volume, or obtaining whether the downlink service transmission rate in the monitored target network reaches the preset rate.
For example, if the preset traffic volume is set to the maximum traffic volume that can be normally transmitted in the target network in the current configuration state of the special subframe, the traffic volume in the target network reaches the preset value, which indicates that the traffic volume that needs to be transmitted in the target network under the current configuration state of the special subframe has already reached the maximum traffic volume that can be normally transmitted, that is, the resources in the target network have already failed to meet the resource requirement of the traffic transmission, and in order to avoid the network congestion and other situations, the number of symbols of the GP may be considered to be reduced, and the number of symbols of the DwPTS may be increased or decreased to increase the resources available for the traffic transmission.
The special subframes have different ratios, and the downlink service transmission rates are also different, for example, when the uplink and downlink configuration is 3: 1: the ratio of the special subframes is 10: 2, and the transmission rate of the downlink service is 60.27 Mbps; the ratio of the special subframes is 9: 3: 2, and the transmission rate of the downlink service is 58.95 Mbps; the ratio of the special sub-frames is 3: 9: 2, and the transmission rate of the downlink service is 51.44 Mbps. If the current ratio belongs to the second ratio set, the transmission rate of the downlink service in the network is lower than that of the downlink service in the case where the current ratio belongs to the first ratio set. The preset rate may be set to the downlink traffic transmission rate required when large rate traffic transmission needs often arise in the network. Under the condition that the current ratio belongs to the second ratio set, when a high-rate service transmission requirement occurs in the network, if the current downlink service transmission rate cannot meet the network high-rate service transmission requirement, the number of symbols of GP can be reduced, the number of symbols of DwPTS is increased or decreased to increase the available resources of service transmission, and the downlink service transmission rate is increased.
Fig. 3 shows a schematic flow diagram of a special subframe configuration method 100 according to a further embodiment of the invention. The method 100 of FIG. 3 differs from the method 100 of FIG. 1 in that the method 100 further includes: and 150, when the current ratio is adjusted, sending paging information to the terminal within the coverage range of the target network.
Wherein, the paging information carries the adjusted current ratio. And sending paging information to a terminal within the coverage range of a target network, informing the terminal network of configuring the ratio of the new special subframe, and enabling the terminal to receive the base station information according to the ratio of the new special subframe, so that the terminal is prevented from analyzing the information sent by the base station according to the ratio of the special subframe before adjustment after the base station adjusts the ratio of the special subframe, and further, data analysis errors occur.
As another alternative embodiment, if the current ratio needs to be adjusted to the ratio belonging to the second ratio set in the step S141, before the current ratio is adjusted to the ratio belonging to the second ratio set, the method 100 may further include: determining the number of symbols with remote co-frequency interference in a target network; then the adjusting of the current ratio to a ratio belonging to the second ratio set is specifically performed: and adjusting the current ratio to belong to the ratio corresponding to the number of the symbols in the second ratio set based on the number of the symbols.
When the second matching set comprises a plurality of matches, the specific match in the second matching set can be determined according to the number of symbols with remote co-frequency interference in the target network. The ratio corresponding to the number of symbols in the second ratio set represents the ratio which can inhibit the long-distance same frequency interference existing in the target network and has the maximum transmission rate of the downlink service. For example, the second matching set includes two ratios of 3: 9: 2 and 3: 7: 2, when the number of symbols of the remote co-frequency interference existing in the target network is determined, the current matching is adjusted to be 3: 9: 2 and 3: 7: 2 in the second matching set based on the number of symbols, so that the remote co-frequency interference existing in the target network can be suppressed, but the rate of downlink service transmission when the matching is 3: 7: 2 is greater than the rate of downlink service transmission when the matching is 3: 9: 2, so that the current matching can be adjusted to be 3: 7: 2 at this time, and the greater rate of downlink service transmission is ensured.
As another alternative embodiment, if the current ratio needs to be adjusted to the ratio belonging to the first ratio set in the step S143, before the current ratio is adjusted to the ratio belonging to the first ratio set, the method 100 may further include: determining the grade of service transmission demand resources in a target network; then adjusting the current ratio to a ratio belonging to the first ratio set is specifically executed: and adjusting the current ratio to belong to the ratio corresponding to the grade in the first ratio set.
When the first matching set comprises a plurality of matches, determining the level of service transmission demand resources in the target network to determine which match needs to be adjusted to in the first matching set. The ratio corresponding to the level of the service transmission required resource in the first ratio set represents the ratio of the resource required for the service transmission that can be provided. For example, the first matching set includes two matching ratios of 10: 2 and 9: 3: 2, and after determining the level of the service transmission required resource in the target network, the matching ratio of 10: 2 for providing the resource required by the service transmission that can be satisfied is obtained, and then the base station may adjust the current matching ratio to 10: 2 at this time, so as to ensure a higher rate of downlink service transmission.
It should be noted that, in the above exemplary illustration, if the base station adjusts the current ratio to 10: 2 at this time, and then the target network has a symbol with long-distance co-channel interference, the base station should adjust the current ratio to 9: 3: 2 at this time to suppress the long-distance co-channel interference in the target network.
It should be noted that, in the above example, when the first ratio set includes 3: 9: 2 and the second ratio set includes 9: 3: 2, since both the two ratios are common ratios, the base station may directly adjust the current ratio to 9: 3: 2 when adjusting the current ratio to the ratio in the second ratio set, and directly adjust the current ratio to 3: 9: 2 when adjusting the current ratio to the ratio in the first ratio set.
As another alternative, if the current ratio is adjusted in step S140, the method 100 further includes: and transmitting data according to the adjusted current ratio.
In step S140, if the current ratio is adjusted, the adjusted ratio is automatically adopted for data transmission immediately, and the adjusted ratio can take effect without restarting the base station in the embodiment of the present invention.
As another alternative, if the current ratio is adjusted in step S140, the method 100 further includes: and sending an adjusting instruction to a module for controlling the ratio of the special subframe.
Wherein the adjustment instruction carries the adjusted current ratio. When a module for specifically controlling the ratio of the special subframe exists, and the current ratio is adjusted in step S140, in the embodiment of the present invention, an adjustment instruction is immediately sent to the module for controlling the ratio of the special subframe, and the adjusted current ratio is carried in the instruction, so that the adjusted ratio can take effect in time, and the adjusted ratio is adopted for subsequent data transmission.
Fig. 4 shows a schematic block diagram of a special subframe configuration apparatus 200 according to an embodiment of the present invention. As shown in fig. 4, the apparatus 200 includes:
an interference monitoring result obtaining unit 210, configured to obtain a remote co-channel interference monitoring result of whether a remote co-channel interference exists in a monitored target network;
a resource usage status obtaining unit 220, configured to obtain a monitored usage status of a resource used for service transmission in the target network;
a detecting unit 230, configured to detect a matching set to which a current matching of a special subframe in the target network belongs, where the matching set includes a first matching set and a second matching set, the first matching set includes a matching corresponding to a case where a number of symbols occupied by a guard interval timeslot in the special subframe is smaller than a preset value, and the second matching set includes a matching corresponding to a case where a number of symbols occupied by a guard interval timeslot in the special subframe is greater than or equal to the preset value;
a processing unit 240, configured to maintain or adjust the current ratio based on the remote co-channel interference monitoring result and the usage status according to a ratio set to which the current ratio belongs.
In the embodiment of the invention, a monitored target network is obtained whether a remote co-frequency interference monitoring result of the remote co-frequency interference exists or not and a use state of resources for service transmission in the target network are obtained, a ratio set to which a current ratio of a special subframe in the target network belongs is detected, and then the current ratio of the special subframe is adjusted or maintained based on whether the remote co-frequency interference exists in the target network, the use state and the ratio set to which the current ratio belongs. The base station automatically judges the ratio of the special subframes suitable in different states of the network according to whether the remote co-frequency interference exists in the target network and the using state of the resources of service transmission, and adjusts or maintains the ratio of the special subframes, so that the base station can adjust the special subframes without manual intervention or service quit, the operation is simple, the time and the cost are saved, the network performance and the working efficiency can be improved, and the normal use of the network by a user is not influenced.
It is to be understood that the processing unit 240 is further configured to:
and when the matching set to which the current matching belongs is the first matching set, maintaining or adjusting the current matching based on the remote same-frequency interference monitoring result.
It can be understood that the remote co-channel interference monitoring result includes that the remote co-channel interference exists in the target network or does not exist in the target network.
The processing unit 240 is further configured to:
when the remote same-frequency interference exists in the target network, adjusting the current ratio to the ratio belonging to the second ratio set;
and when the remote same-frequency interference does not exist in the target network, maintaining the current proportioning.
It is to be understood that the processing unit 240 is further configured to:
when the matching set to which the current matching belongs is the second matching set, judging whether the resources in the target network meet the resource requirement of service transmission or not based on the use state;
and maintaining or adjusting the current ratio based on whether the resources in the target network meet the resource requirements of service transmission and the remote co-channel interference monitoring result.
It can be understood that the remote co-channel interference monitoring result includes that the remote co-channel interference exists in the target network or does not exist in the target network; the processing unit 240 is further configured to:
when the resources in the target network do not meet the resource requirements of service transmission and the remote same-frequency interference does not exist in the target network, adjusting the current ratio to the ratio in the first ratio set;
and when the resources in the target network meet the resource requirement of service transmission or the remote same-frequency interference exists in the target network, maintaining the current proportioning type.
Fig. 5 shows a schematic block diagram of a special subframe configuration apparatus 200 according to still another embodiment of the present invention.
It is understood that, as shown in fig. 5, the apparatus 200 may further include:
a setting unit 250, configured to preset the first matching set and the second matching set.
It is understood that, as shown in fig. 5, the apparatus 200 may further include:
a paging information sending unit 260, configured to send paging information to a terminal within the coverage of the target network when the current ratio is adjusted, where the paging information carries the adjusted current ratio.
It is understood that, as shown in fig. 5, the apparatus 200 may further include:
a data transmission unit 270, configured to, when the current ratio is adjusted, perform data transmission according to the adjusted current ratio.
It is understood that, as shown in fig. 5, the apparatus 200 may further include:
an adjustment instruction sending unit 280, configured to send an adjustment instruction to a module that controls the ratio of the special subframe when the current ratio is adjusted, where the adjustment instruction carries the adjusted current ratio.
The special subframe configuration apparatus 200 according to the embodiment of the present invention may correspond to an execution body in the special subframe configuration method according to the embodiment of the present invention, and the above and other operations and/or functions of each module in the special subframe configuration apparatus 200 are respectively for implementing corresponding processes of each method in fig. 1 to fig. 3, and are not described herein again for brevity.
Fig. 6 is a schematic block diagram of a base station 300 according to an embodiment of the present invention. As shown in fig. 6, the base station 300 includes a processor 301, a memory 302 and an input/output interface 303, the memory 302 is used for storing executable programs, the processor 301 is used for executing the programs stored in the memory 301, the input/output interface 303 is used for communicating with external devices, the base station 300 may further include a bus 304, and the bus 304 is used for connecting the processor 301, the memory 302 and the input/output interface 303, so that the processor 301, the memory 302 and the input/output interface 303 communicate with each other through the bus 304.
Specifically, the processor 301 is specifically configured to obtain a remote co-channel interference monitoring result of whether a remote co-channel interference exists in the monitored target network; and the method is used for acquiring the monitored use state of the resources for service transmission in the target network; the system comprises a special subframe, a ratio set and a control unit, wherein the ratio set is used for detecting the ratio set to which the current ratio of the special subframe in the target network belongs, the ratio set comprises a first ratio set and a second ratio set, the first ratio set comprises the ratio corresponding to the special subframe when the number of symbols occupied by a protection interval time slot is smaller than a preset value, and the second ratio set comprises the ratio corresponding to the special subframe when the number of symbols occupied by the protection interval time slot is larger than or equal to the preset value; and the system is used for maintaining or adjusting the current ratio based on the remote same-frequency interference monitoring result and the use state according to the ratio set to which the current ratio belongs.
Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the examples described in connection with the embodiments disclosed herein may be embodied in electronic hardware, computer software, or combinations of both, and that the components and steps of the examples have been described in a functional general in the foregoing description for the purpose of illustrating clearly the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention. It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (15)
1. A special subframe configuration method comprises the following steps:
acquiring a remote co-frequency interference monitoring result of whether a monitored target network has remote co-frequency interference or not;
acquiring the monitored use state of resources for service transmission in the target network;
detecting a ratio set to which a current ratio of a special subframe in the target network belongs, wherein the ratio set comprises a first ratio set and a second ratio set, the first ratio set comprises a ratio corresponding to the condition that the number of symbols occupied by a protection interval time slot in the special subframe is less than a preset value, and the second ratio set comprises a ratio corresponding to the condition that the number of symbols occupied by the protection interval time slot in the special subframe is greater than or equal to the preset value;
maintaining or adjusting the current ratio based on the remote same-frequency interference monitoring result and the use state according to the ratio set to which the current ratio belongs;
wherein the processing of maintaining or adjusting the current ratio based on the remote co-channel interference monitoring result and the use state according to the ratio set to which the current ratio belongs includes:
when the matching set to which the current matching belongs is the first matching set, maintaining or adjusting the current matching based on the remote same-frequency interference monitoring result;
when the matching set to which the current matching belongs is the second matching set, judging whether the resources in the target network meet the resource requirement of service transmission or not based on the use state;
and maintaining or adjusting the current ratio based on whether the resources in the target network meet the resource requirements of service transmission and the remote co-channel interference monitoring result.
2. The method of claim 1, wherein the remote co-channel interference monitoring result comprises that the remote co-channel interference exists in the target network or does not exist in the target network;
the processing of maintaining or adjusting the current ratio based on the remote co-channel interference monitoring result comprises:
when the remote same-frequency interference exists in the target network, adjusting the current ratio to the ratio belonging to the second ratio set;
and when the remote same-frequency interference does not exist in the target network, maintaining the current proportioning.
3. The method of claim 1, wherein the remote co-channel interference monitoring result comprises that the remote co-channel interference exists in the target network or does not exist in the target network;
the processing of maintaining or adjusting the current ratio based on whether the resources in the target network meet the resource requirements of service transmission and the remote co-channel interference monitoring result comprises:
when the resources in the target network do not meet the resource requirements of service transmission and the remote same-frequency interference does not exist in the target network, adjusting the current ratio to the ratio in the first ratio set;
and when the resources in the target network meet the resource requirement of service transmission or the remote same-frequency interference exists in the target network, maintaining the current ratio.
4. The method of claim 1, further comprising:
presetting the first ratio set and the second ratio set.
5. The method of claim 1, further comprising:
and when the current ratio is adjusted, sending paging information to the terminal within the coverage range of the target network, wherein the paging information carries the adjusted current ratio.
6. The method of claim 1, further comprising:
and when the current ratio is adjusted, carrying out data transmission according to the adjusted current ratio.
7. The method of claim 1, further comprising:
and when the current ratio is adjusted, sending an adjusting instruction to a module for controlling the ratio of the special subframe, wherein the adjusting instruction carries the adjusted current ratio.
8. A special subframe configuration apparatus, comprising:
the remote co-channel interference monitoring result acquisition unit is used for acquiring a remote co-channel interference monitoring result of whether the monitored target network has remote co-channel interference;
a resource use state obtaining unit, configured to obtain a monitored use state of a resource used for service transmission in the target network;
a detecting unit, configured to detect a matching set to which a current matching of a special subframe in the target network belongs, where the matching set includes a first matching set and a second matching set, the first matching set includes a matching corresponding to a case where a number of symbols occupied by a guard interval timeslot in the special subframe is less than a preset value, and the second matching set includes a matching corresponding to a case where the number of symbols occupied by the guard interval timeslot in the special subframe is greater than or equal to the preset value;
the processing unit is used for maintaining or adjusting the current ratio based on the remote same-frequency interference monitoring result and the using state according to the ratio set to which the current ratio belongs;
wherein the processing unit is further to:
when the matching set to which the current matching belongs is the first matching set, maintaining or adjusting the current matching based on the remote same-frequency interference monitoring result;
when the matching set to which the current matching belongs is the second matching set, judging whether the resources in the target network meet the resource requirement of service transmission or not based on the use state;
and maintaining or adjusting the current ratio based on whether the resources in the target network meet the resource requirements of service transmission and the remote co-channel interference monitoring result.
9. The apparatus of claim 8, wherein the remote co-channel interference monitoring result comprises the presence of the remote co-channel interference in the target network or the absence of the remote co-channel interference in the target network; the processing unit is further to:
when the remote same-frequency interference exists in the target network, adjusting the current ratio to the ratio belonging to the second ratio set;
and when the remote same-frequency interference does not exist in the target network, maintaining the current proportioning.
10. The apparatus of claim 8, wherein the remote co-channel interference monitoring result comprises the presence of the remote co-channel interference in the target network or the absence of the remote co-channel interference in the target network; the processing unit is further to:
when the resources in the target network do not meet the resource requirements of service transmission and the remote same-frequency interference does not exist in the target network, adjusting the current ratio to the ratio in the first ratio set;
and when the resources in the target network meet the resource requirement of service transmission or the remote same-frequency interference exists in the target network, maintaining the current proportioning type.
11. The apparatus of claim 8, further comprising:
a setting unit, configured to preset the first matching set and the second matching set.
12. The apparatus of claim 8, further comprising:
and the paging information sending unit is used for sending paging information to the terminal within the coverage range of the target network when the current ratio is adjusted, and the paging information carries the adjusted current ratio.
13. The apparatus of claim 8, further comprising:
and the data transmission unit is used for transmitting data according to the adjusted current ratio when the current ratio is adjusted.
14. The apparatus of claim 8, further comprising:
and the adjusting instruction sending unit is used for sending an adjusting instruction to a module for controlling the ratio of the special subframe when the current ratio is adjusted, and the adjusting instruction carries the adjusted current ratio.
15. A base station, comprising:
a memory for storing an executable program;
an input/output interface for communicating with an external device;
the processor is used for executing the program stored in the memory, and specifically used for acquiring a remote co-channel interference monitoring result of whether the monitored target network has remote co-channel interference; and the method is used for acquiring the monitored use state of the resources for service transmission in the target network; the system comprises a special subframe, a ratio set and a control unit, wherein the ratio set is used for detecting the ratio set to which the current ratio of the special subframe in the target network belongs, the ratio set comprises a first ratio set and a second ratio set, the first ratio set comprises the ratio corresponding to the special subframe when the number of symbols occupied by a protection interval time slot is smaller than a preset value, and the second ratio set comprises the ratio corresponding to the special subframe when the number of symbols occupied by the protection interval time slot is larger than or equal to the preset value; and the system is used for maintaining or adjusting the current ratio based on the remote same-frequency interference monitoring result and the use state according to the ratio set to which the current ratio belongs; the maintaining or adjusting the current ratio based on the remote same-frequency interference monitoring result and the using state according to the ratio set to which the current ratio belongs specifically comprises: when the current ratio belongs to a first ratio set, maintaining or adjusting the current ratio based on a remote same-frequency interference monitoring result; and if the current ratio belongs to the second ratio set, judging whether the resources in the target network meet the resource requirement of service transmission based on the use state, and maintaining or adjusting the current ratio according to the judgment result.
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| CN110831011B (en) * | 2018-08-10 | 2021-10-29 | 大唐移动通信设备有限公司 | Far-end interference characteristic optimization method and device |
| CN111385829B (en) | 2018-12-27 | 2021-10-29 | 大唐移动通信设备有限公司 | Method, system and device for avoiding far-end interference |
| CN112188619B (en) * | 2019-07-01 | 2022-10-18 | 中国移动通信集团山东有限公司 | Uplink and downlink subframe ratio adjusting method and device, storage medium and base station |
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| CN101795473A (en) * | 2009-02-03 | 2010-08-04 | 大唐移动通信设备有限公司 | Methods and devices for determining special subframe configuration mode and time-domain resource use mode |
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| EP1511190A1 (en) * | 2003-08-27 | 2005-03-02 | Siemens Aktiengesellschaft | Method for transmission in a TDD system with variable length guard period |
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| CN101795473A (en) * | 2009-02-03 | 2010-08-04 | 大唐移动通信设备有限公司 | Methods and devices for determining special subframe configuration mode and time-domain resource use mode |
| CN102149096A (en) * | 2010-02-05 | 2011-08-10 | 中国移动通信集团公司 | Method and device for positioning remote same-frequency interference source |
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