CN106792904B - Small packet data transmission method and base station - Google Patents
Small packet data transmission method and base station Download PDFInfo
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- CN106792904B CN106792904B CN201611038761.1A CN201611038761A CN106792904B CN 106792904 B CN106792904 B CN 106792904B CN 201611038761 A CN201611038761 A CN 201611038761A CN 106792904 B CN106792904 B CN 106792904B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
- H04W28/065—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information using assembly or disassembly of packets
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
- H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
- H04W72/1273—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of downlink data flows
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
Abstract
The embodiment of the invention provides a method for transmitting packet data and a base station, wherein the method comprises the following steps: acquiring the utilization rate of downlink resources of a wireless network; determining whether the utilization rate of downlink resources of the wireless network exceeds a first preset threshold value; and if the number of the packets exceeds the preset threshold, accumulating the packet data and then sending the accumulated packet data to corresponding terminal equipment so as to improve the capacity of the network. The transmission method of the packet data and the base station provided by the embodiment of the invention can improve the utilization rate of wireless resources and the capacity of a wireless network.
Description
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to a transmission method of packet data and a base station
Background
A Long Term Evolution (LET) system supports various communication services, and in order to provide a large-capacity communication service and ensure the service quality of the service, it adopts a certain scheduling scheme and implements effective scheduling and resource allocation through a base station. LTE adopts an adaptive modulation coding technology, downlink channels are measured by a user in signal to noise ratio, uplink channels are measured by a base station in signal to noise ratio, the base station determines a modulation coding mode according to service transmission requirements and channel conditions, and time-frequency resources are distributed.
In the prior art, for packet data of an LET system, when system network resources are good, although a high-order modulation mode may be used, since a single data packet needs less information to be transmitted, data transmission can still be completed even if a low-order modulation mode is used on the premise of not increasing the number of resource blocks, at this time, in order to reduce a possible error rate, a low modulation order may be used for modulation of the packet data. However, this transmission scheme reduces the error rate of data transmission by reducing the modulation order, but also reduces the efficiency of the radio spectrum of the system, thereby limiting the capacity of the system.
Disclosure of Invention
The embodiment of the invention provides a packet data transmission method and a base station, which are used for improving the network capacity in a packet service scene and improving the utilization rate of wireless resources.
A first aspect of an embodiment of the present invention provides a method for transmitting packet data, where the method includes:
acquiring the utilization rate of downlink resources of a wireless network;
determining whether the utilization rate of downlink resources of the wireless network exceeds a first preset threshold value;
and if the number of the packets exceeds the preset threshold, accumulating the packet data and then sending the accumulated packet data to corresponding terminal equipment so as to improve the capacity of the network.
A second aspect of an embodiment of the present invention provides a base station, including:
the acquisition module is used for acquiring the utilization rate of downlink resources of the wireless network;
the first determining module is used for determining whether the utilization rate of the downlink resources of the wireless network exceeds a first preset threshold value;
and the first sending module is used for accumulating the packet data and then sending the accumulated packet data to corresponding terminal equipment when the utilization rate of the downlink resources exceeds the first preset threshold value so as to improve the capacity of the network.
According to the embodiment of the invention, by judging the resource utilization rate of the wireless network, when the downlink resource utilization rate of the wireless network exceeds the first preset threshold value, the packet data is accumulated and then uniformly packaged into a data packet to be sent to the corresponding terminal equipment, so that the system can modulate the packet data by a high-order modulation method under the condition of high wireless resource utilization rate, instead of modulating the packet data by a low-order modulation method like the prior art, and further the network capacity of the system in a packet service scene is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are 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 a flowchart illustrating a method for transmitting packet data according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating a method for transmitting uplink packet data 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;
fig. 4 is a schematic structural diagram of a base station according to another 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.
The terms "comprises" and "comprising," and any variations thereof, in the description and claims of this invention, are intended to cover non-exclusive inclusions, e.g., a process or an apparatus that comprises a list of steps is not necessarily limited to those structures or steps expressly listed but may include other steps or structures not expressly listed or inherent to such process or apparatus.
Fig. 1 is a flowchart illustrating a method for transmitting packet data according to an embodiment of the present invention, where the method may be executed by a base station, as shown in fig. 1, and the method includes the following steps:
and step S101, acquiring the utilization rate of downlink resources of the wireless network.
The downlink resource utilization rate of the wireless network related in this embodiment may be obtained by the base station by obtaining the downlink resource utilization rate in its own coverage area, or obtained by the base station by comprehensively considering the downlink resource utilization rate in its own coverage area and the downlink resource utilization rates of other base stations in its surrounding preset range. The specific implementation method is similar to that in the prior art and is not described herein again.
Step S102, determining whether the utilization rate of the downlink resources of the wireless network exceeds a first preset threshold, and if so, executing step S103.
In practical applications, the size of the first preset threshold may be specifically set according to specific requirements. The method reflects the occupation level of the downlink wireless resources of the base station, and when the current downlink resource utilization rate exceeds a first preset threshold value, the current downlink resource occupation level of the base station is high, and at the moment, if packet data is debugged and sent in a low-order debugging mode, the packet data easily exceeds the capacity capability of the system, so that the transmission capability of the system is poor. If the small packet data is modulated by adopting a high-order modulation mode at the moment, the small packet data can be transmitted by adopting a common data packet transmission mode, and the network capacity of the system can be improved. The specific method is shown as step 3.
And step S103, accumulating the packet data and then sending the packet data to corresponding terminal equipment so as to improve the capacity of the network.
In order to enable the packet data to be modulated in a high-order debugging manner as a common data packet and increase the data volume of single transmission, in this embodiment, a manner of accumulating the packet data is adopted, and the packet data obtained by accumulation is combined into one data packet to be transmitted. The data volume of the data packet generated by recombination is increased, and the data packet can be modulated by using a high-order modulation mode of a common data packet, so that the purposes of improving the frequency resource utilization rate and the system capacity are achieved.
In practical application, if the base station detects that the current downlink resource utilization rate exceeds a first preset threshold, the base station starts the accumulation operation of the small packet data. Specifically, in the actual operation process, a time range (i.e., a first preset time range) may be set for the base station in advance, when the packet data accumulation operation is started, the timing operation is started, and when the timing reaches the preset time range, the packet data accumulation is stopped, and the timing is ended. At this time, the data with the same receiving terminal in the accumulated packet data is combined and encapsulated to form a data packet, and then the data packet is sent to the corresponding terminal device.
In addition, in practical applications, it is considered that different operators may have different operation strategies, and therefore, in the process of accumulating the packet data, a specific type of packet data may also be accumulated, where the type of the packet may be divided according to the size of the packet, the service type, the content source, and the like. For example, in practical applications, considering that when network capacity is congested and a user has a higher tolerance for delay of an instant message type data packet, the data packet may be filtered according to a source IP address of the data packet, and only the instant message type data packets with a single data packet smaller than 500 bytes are accumulated. It is to be understood that this is by way of illustration and not by way of limitation.
Since the resource utilization rate of the wireless network is changed in real time in practical applications, the downlink resource utilization rate of the base station may be higher than the first preset threshold at this moment and lower than the first preset threshold at the next moment. When the downlink resource utilization rate is lower than the first preset threshold, even if the packet data is modulated and transmitted by using the low-order modulation method, the data transmission of the system is not affected, and in order to obtain a low error rate, it is desirable to modulate the packet data by using the low-order modulation method. Therefore, in view of such a possible situation, the present embodiment stops the current accumulation operation of the small packet data, and reassembles the small packet data obtained by accumulation into one data packet to be transmitted to the corresponding terminal device, and the small packet data received after the stop of the accumulation operation is modulated and transmitted by the low-order modulation method.
In this embodiment, by judging the resource utilization rate of the wireless network, when the downlink resource utilization rate of the wireless network exceeds a first preset threshold, the packet data is accumulated and then uniformly encapsulated into a data packet to be sent to the corresponding terminal device, so that the system can modulate the packet data by a high-order modulation method under the condition that the wireless resource utilization rate is high, instead of modulating the packet data by a low-order modulation method as in the prior art, thereby improving the network capacity of the system in a packet service scene.
In practical applications, data communication or interaction is generally bidirectional, and there is downlink data sent by the base station to the terminal device, and certainly there is also uplink data sent by the terminal device to the base station. Similarly, the problem of transmitting downlink packet data also exists in the transmission of uplink packet data. Therefore, in the above embodiment, a transmission method of uplink packet data may also be added.
Fig. 2 is a schematic flow chart of a method for transmitting uplink packet data according to an embodiment of the present invention, as shown in fig. 2, the embodiment shown in fig. 1 may further include the following steps:
step S201, receiving the uplink resource utilization rate of the wireless network sent by the terminal device.
In practical application, the terminal equipment detects the utilization rate of the uplink resources of the base station and sends the detection result to the base station. This is similar to the prior art and will not be described in detail here.
Step S202, determining whether the uplink resource utilization rate exceeds a second preset threshold, and if so, executing step S203.
It should be noted here that the second preset threshold and the first preset threshold may be set differently, for example, the first preset threshold may be set to 70%, and the second preset threshold may be set to 80%. It is to be understood that this is by way of illustration and not by way of limitation.
Step S203, sending a first notification message sent by delaying the uplink packet data to the terminal device, so that the terminal device accumulates packet data of a preset type within a second preset time range according to the first notification message, and sends the packet data obtained by accumulation in a combined manner after the second preset time range.
Specifically, in practical application, when the base station determines that the uplink resource of the terminal device exceeds a preset second preset threshold, the base station sends notification information for notifying the terminal device to start packet data delay sending to the terminal device. And after receiving the notification message, the terminal equipment starts timing and accumulates packet data to be sent. And when the timing time reaches a second preset time range, stopping timing, recombining the accumulated small packet data into a common data packet and sending the common data packet to the base station. In particular, the second preset time range in this embodiment may be specifically set as required, and in general, the time range is set based on the data amount of the normal data packet or the data amount that can be obtained by accumulating in the time range.
Similar to the embodiment of fig. 1, in the packet data accumulation operation of the terminal device, the packet data of a specific type may also be accumulated according to specific needs. The specific terminal device needs to accumulate the packet data of which type or type, and the packet data may be sent to the terminal device by the base station through the notification message, or may be pre-stored in the terminal device, which is not limited herein.
In addition, since the resource utilization rate of the wireless network in practical application is changed in real time, the uplink resource utilization rate of the base station may be higher than the second preset threshold at this moment and lower than the second preset threshold at the next moment. And under the condition that the utilization rate of the uplink resources is lower than the second preset threshold, even if the packet data is modulated and sent by using the low-order modulation method, the data transmission of the system is not influenced, and in order to obtain a low error rate, the packet data is desirably modulated by using the low-order modulation method. Therefore, in view of such a possible situation, the present embodiment is implemented by the base station sending a second notification message for terminating the delayed sending of the uplink packet data to the terminal device, the terminal device stopping the accumulation operation of the packet data upon receiving the second notification message, and recombining the packet data that has been accumulated and obtained into one data packet and sending the data packet to the base station. And the packet data received after stopping the accumulation operation is modulated and transmitted by a low-order modulation mode.
In this embodiment, by judging the resource utilization rate of the wireless network, when the uplink resource utilization rate of the wireless network exceeds the second preset threshold, the packet data is accumulated and then uniformly encapsulated into a data packet to be sent to the base station, so that the system can modulate the packet data by a high-order modulation method under the condition that the wireless resource utilization rate is high, instead of modulating the packet data by a low-order modulation method as in the prior art, thereby improving the network capacity of the system in a packet service scene.
Fig. 3 is a schematic structural diagram of a base station according to an embodiment of the present invention, and as shown in fig. 3, the base station includes:
an obtaining module 11, configured to obtain a downlink resource utilization rate of a wireless network;
a first determining module 12, configured to determine whether a downlink resource utilization rate of the wireless network exceeds a first preset threshold;
and the first sending module 13 is configured to, when the downlink resource utilization rate exceeds the first preset threshold, accumulate the packet data and send the packet data to a corresponding terminal device, so as to improve the capacity of the network.
The first sending module 13 is specifically configured to:
and accumulating the packet data of the preset type within a first preset time range, and combining the packet data obtained by accumulation into a data packet after the first preset time range and sending the data packet to the corresponding terminal equipment.
The first sending module 13 is further specifically configured to:
and when the utilization rate of the downlink resources of the wireless network is smaller than the first preset threshold value within the first preset time range, stopping the accumulation of the packet data of the preset type, and combining the packet data which is obtained by accumulation into a data packet and sending the data packet to the corresponding terminal equipment.
The base station provided in this embodiment can execute the method shown in the embodiment of fig. 1, and the execution manner and the beneficial effect are similar, which are not described herein again.
Fig. 4 is a schematic structural diagram of a base station according to another embodiment of the present invention, as shown in fig. 4, this embodiment may further include, on the basis of the structure shown in fig. 3:
a receiving module 14, configured to receive the uplink resource utilization rate of the wireless network sent by the terminal device;
a second determining module 15, configured to determine whether the uplink resource utilization rate exceeds a second preset threshold;
a second invention module 16, configured to send, when the uplink resource utilization rate exceeds the second preset threshold, a first notification message sent by delaying uplink packet data to the terminal device, so that the terminal device accumulates packet data of a preset type within a second preset time range according to the first notification message, and performs combined sending on the packet data obtained by accumulation after the second preset time range.
Wherein, the second sending module 16 is further configured to:
and when the uplink resource utilization rate of the wireless network is smaller than the second preset threshold value within the second preset time range, sending a second notification message for stopping time-delay sending of uplink packet data to the terminal equipment, so that the terminal equipment stops accumulation of the packet data according to the second notification message, and performs combined sending on the packet data obtained by accumulation.
The base station provided in this embodiment can execute the method shown in the embodiment of fig. 2, and the execution manner and the beneficial effect are similar, which are not described herein again.
Finally, it should be noted that, as one of ordinary skill in the art will appreciate, all or part of the processes of the methods of the embodiments described above may be implemented by hardware related to instructions of a computer program, where the computer program may be stored in a computer-readable storage medium, and when executed, the computer program may include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), a Random Access Memory (RAM), or the like.
Each functional unit in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a separate product, may also be stored in a computer readable storage medium. The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (6)
1. A method for transmitting packet data, comprising:
acquiring the utilization rate of downlink resources of a wireless network;
determining whether the utilization rate of downlink resources of the wireless network exceeds a first preset threshold value;
if the quantity exceeds the preset value, accumulating the packet data and then sending the packet data to corresponding terminal equipment by a high-order modulation method so as to improve the capacity of the network;
when the downlink resource utilization rate exceeds the first preset threshold, the step of accumulating the packet data and then sending the accumulated packet data to the corresponding terminal device by a high-order modulation method includes:
accumulating packet data of a preset type in a first preset time range, combining the packet data obtained by accumulation into a data packet after the first preset time range, and sending the data packet to corresponding terminal equipment by a high-order modulation method;
and when the downlink resource utilization rate of the wireless network is smaller than the first preset threshold value within the first preset time range, stopping the accumulation of the packet data of the preset type, combining the packet data which is obtained by accumulation into a data packet, and sending the data packet to the corresponding terminal equipment by a low-order modulation method.
2. The method of claim 1, further comprising:
receiving the uplink resource utilization rate of the wireless network sent by the terminal equipment;
determining whether the uplink resource utilization rate exceeds a second preset threshold;
and if the uplink packet data exceeds the preset time range, sending a first notification message sent by delaying the uplink packet data to the terminal equipment, so that the terminal equipment accumulates the packet data of the preset type within a second preset time range according to the first notification message, and sending the packet data obtained by accumulation in a combined manner after the second preset time range.
3. The method of claim 2, further comprising:
and when the uplink resource utilization rate of the wireless network is smaller than the second preset threshold value within the second preset time range, sending a second notification message for terminating the delayed sending of the uplink packet data to the terminal equipment, so that the terminal equipment stops the accumulation of the packet data according to the second notification message, and performs combined sending on the packet data which is obtained by accumulation.
4. A base station, comprising:
the acquisition module is used for acquiring the utilization rate of downlink resources of the wireless network;
the first determining module is used for determining whether the utilization rate of the downlink resources of the wireless network exceeds a first preset threshold value;
a first sending module, configured to, when the downlink resource utilization exceeds the first preset threshold, accumulate packet data and send the accumulated packet data to a corresponding terminal device through a high-order modulation method, so as to improve the capacity of the network;
the first sending module is specifically configured to:
accumulating packet data of a preset type in a first preset time range, combining the packet data obtained by accumulation into a data packet after the first preset time range, and sending the data packet to corresponding terminal equipment by a high-order modulation method;
the first sending module is specifically further configured to:
and when the downlink resource utilization rate of the wireless network is smaller than the first preset threshold value within the first preset time range, stopping the accumulation of the packet data of the preset type, combining the packet data obtained by accumulation into a data packet, and sending the data packet to the corresponding terminal equipment by a low-order modulation method.
5. The base station of claim 4, further comprising:
the receiving module is used for receiving the uplink resource utilization rate of the wireless network sent by the terminal equipment;
a second determining module, configured to determine whether the uplink resource utilization rate exceeds a second preset threshold;
and the second sending module is used for sending a first notification message sent by delaying uplink packet data to the terminal equipment when the uplink resource utilization rate exceeds the second preset threshold value, so that the terminal equipment accumulates packet data of preset types within a second preset time range according to the first notification message, and combines and sends the packet data obtained by accumulation after the second preset time range.
6. The base station of claim 5, wherein the second sending module is further configured to:
and when the uplink resource utilization rate of the wireless network is smaller than the second preset threshold value within the second preset time range, sending a second notification message for stopping time-delay sending of uplink packet data to the terminal equipment, so that the terminal equipment stops accumulation of the packet data according to the second notification message, and performs combined sending on the packet data obtained by accumulation.
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| CN109429352B (en) * | 2017-09-05 | 2020-10-09 | 大唐移动通信设备有限公司 | Method and device for scheduling packet service data of base station |
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