CN102958099B - The processing method of discontinuous receiving cycle and network equipment in machine type communication - Google Patents
The processing method of discontinuous receiving cycle and network equipment in machine type communication Download PDFInfo
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Abstract
The invention provides processing method and the network equipment of discontinuous receiving cycle in a kind of machine type communication, to solve the problem at present improvement of discontinuous receiving cycle easily being caused to network congestion.Wherein, in described a kind of machine type communication, the processing method of discontinuous receiving cycle comprises: network equipment obtains the Network load status of machine type communication; Described network equipment is according to the discontinuous receiving cycle of the Network load status adjustment terminal of described machine type communication; Described network equipment sends beep-page message by base station to described terminal, carries the discontinuous receiving cycle after described adjustment, for described terminal according to the discontinuous receiving cycle reported data after described adjustment in described beep-page message.The present invention, according to the discontinuous receiving cycle of Network load status adjustment terminal, makes terminal according to the discontinuous receiving cycle reported data after adjustment, can avoid great amount of terminals in synchronization reported data, therefore solve the problem of network congestion.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to a method for processing discontinuous reception cycles in machine-type communications and a network device.
Background
With the development of communication technology, Machine-type communication (MTC) technology has received a great deal of attention. MTC communicates for a corresponding Machine-to-Machine (M2M, Machine to Machine) within The third Generation partnership Project (3 GPP). In an MTC communication system, a terminal device may also be referred to as an MTC terminal.
MTC is distinguished from current mobile communication networks by the following features: MTC has different market applications, and MTC is basically data communication; the MTC cost is lower, and the occupied resources are less; MTC has a huge number of communication terminals while the amount of data per terminal is small. Therefore, the network needs to add new functions and optimize the existing functions according to the characteristics of MTC communication.
The service life of a MTC terminal battery of a current wireless communication system is usually 2-3 days, and the high power consumption is mainly caused by the fact that the terminal needs to periodically receive a system broadcast channel in an idle state; the common control channel needs to be periodically received in the activated state, and the sleep time is short; a large amount of measurements, feedback, signaling is required to support adaptive operation.
The conventional Discontinuous Reception (DRX) function is to save power for the MTC terminal. The DRX is divided into two types, one type is IDLE (IDLE) DRX, that is, the DRX when the MTC terminal is in an IDLE state is completely controlled by an initial Non-Access Stratum (NAS), the terminal is notified of the configuration of various DRX parameters through a paging message, the terminal enters a DRX cycle according to the configuration of the DRX parameters, and at this time, the terminal stops monitoring a Physical Downlink Control Channel (PDCCH) scrambled by a Radio Network Temporary Identity (P-RNTI) for paging; after the DRX cycle is over, the terminal starts monitoring again, so that the terminal can save power in the idle DRX cycle. The other is connected state (ACTIVE) DRX, that is, DRX when the MTC terminal is in a connected state, which is controlled by the eNB, and the RRC issues a signaling to notify the MTC terminal of configuration of various DRX parameters, and meanwhile, a Medium Access Control (MAC) layer may also Control DRX through a MAC Control Element (CE, Control Element); after the DRX cycle is over, the terminal restarts monitoring, so that the terminal can save power in the connected DRX cycle.
Currently, in an MTC-based Long Term Evolution (LTE) network, an improvement on DRX is only to design a longer DRX cycle so that MTC terminals save power. However, since MTC communication involves a large number of terminals, the MTC terminals may report data at the same time for the application, thereby causing congestion of the core network and the wireless side device, and the congestion may be of the signaling plane or the data plane. Existing methods that merely design longer DRX cycles do not control congestion well when congestion occurs.
Therefore, although the current improvement on DRX can achieve the effect of saving power for MTC terminals, the following problems are also brought about: when a large number of terminals report data at the same time, network congestion is easily caused.
Disclosure of Invention
The invention provides a processing method of discontinuous reception cycle in machine type communication and network side equipment, aiming at solving the problem that network congestion is easily caused by the improvement of DRX at present.
In order to solve the above problem, the present invention discloses a method for processing discontinuous reception cycles in machine type communication, comprising:
network side equipment acquires the network load condition of machine type communication;
the network side equipment adjusts the discontinuous receiving period of the terminal according to the network load condition of the machine type communication;
and the network side equipment sends a paging message to the terminal through a base station, wherein the paging message carries the adjusted discontinuous receiving period so that the terminal can report data according to the adjusted discontinuous receiving period.
Preferably, the adjusting, by the network side device, the discontinuous reception cycle of the terminal according to the network load condition of the machine type communication includes:
when the network load condition of the machine type communication is overload, the network side equipment configures a discontinuous receiving period which is longer than the current discontinuous receiving period for the terminal;
and when the network load condition of the machine type communication is low load, the network side equipment configures a discontinuous reception cycle shorter than the current discontinuous reception cycle for the terminal.
Preferably, before the network side device adjusts the discontinuous reception cycle of the terminal according to the network load condition of the machine type communication, the method further includes:
and the network side equipment selects a terminal according to the network load condition of the machine type communication.
Preferably, the selecting, by the network side device, a terminal according to the network load condition of the machine type communication includes:
the network side equipment acquires the priority of the terminal in the group according to the group identification of the terminal and the corresponding relation between the group identification and the group priority; wherein the priorities of all terminals included in the packet are the same;
and the network side equipment selects the terminals in the grouping according to the network load condition of the machine type communication and the priority of the terminals in the grouping.
Preferably, the selecting, by the network side device, a terminal in a packet according to a network load condition of machine type communication and a priority of the terminal in the packet includes:
when the network load condition of the machine type communication is overload, the network side equipment selects a terminal in a packet with low priority;
when the network load condition of the machine type communication is low load, the network side equipment selects a terminal in a packet with high priority;
and the requirement of the terminal in the packet with the high priority on the data delay is higher than the requirement of the terminal in the packet with the low priority on the data delay.
Preferably, the acquiring, by the network-side device, the network load condition of the machine type communication includes:
the network side equipment acquires the network load condition by detecting the current network load, or acquires the network load condition by counting the flow value in the preset time;
the network side device obtains the network load condition by detecting the current network load, and the method comprises the following steps:
the network side equipment detects the load average value of the CPU, if the load average value reaches a first preset value, the network load condition is the overload, and if the load average value does not reach a second preset value, the network load condition is the low load; wherein the first preset value is greater than the second preset value;
the network side equipment obtains the network load condition by counting the flow value in the preset time, and the method comprises the following steps:
the network side equipment counts a flow value within a preset time, if the flow value reaches a third preset value, the network load condition is the overload, and if the flow value does not reach a fourth preset value, the network load condition is the low load; wherein the third preset value is greater than the fourth preset value.
Preferably, when the terminal is in a connected state, the acquiring, by the network-side device, the network load condition of the machine type communication further includes:
the network side equipment receives the network load condition reported by the terminal; and the network load condition reported by the terminal is determined by the terminal according to the uplink and downlink rates before each discontinuous reception period is finished.
The invention also discloses a network side device, comprising:
the network load condition acquisition module is used for acquiring the network load condition of the machine type communication;
the period adjusting module is used for adjusting the discontinuous receiving period of the terminal according to the network load condition of the machine type communication;
and the paging message sending module is used for sending a paging message to the terminal through a base station, wherein the paging message carries the adjusted discontinuous receiving period so that the terminal can report data according to the adjusted discontinuous receiving period.
Preferably, the period adjustment module includes:
the long-period configuration submodule is used for configuring a discontinuous receiving period which is longer than the current discontinuous receiving period for the terminal when the network load condition of the machine type communication is overload;
and the short period configuration submodule is used for configuring a discontinuous receiving period shorter than the current discontinuous receiving period for the terminal when the network load condition of the machine type communication is low load.
Preferably, the method further comprises the following steps:
and the selection module is used for selecting the terminal according to the network load condition of the machine type communication.
Preferably, the selection module comprises:
the priority acquisition submodule is used for acquiring the priority of the terminals in the group according to the terminal group identification and the corresponding relation between the group identification and the group priority; wherein the priorities of all terminals included in the packet are the same;
and the terminal selection submodule is used for selecting the terminals in the grouping according to the network load condition of the machine type communication and the priority of the terminals in the grouping.
Preferably, the terminal selection submodule includes:
the first terminal selection submodule is used for selecting terminals in a group with low priority when the network load condition of machine type communication is overload;
the second terminal selection submodule is used for selecting terminals in a group with high priority when the network load condition of machine type communication is low load;
and the requirement of the terminal in the packet with the high priority on the data delay is higher than the requirement of the terminal in the packet with the low priority on the data delay.
Preferably, the network load condition obtaining module includes:
the direct acquisition submodule is used for acquiring the network load condition by detecting the current network load or acquiring the network load condition by counting the flow value in the preset time;
the direct acquisition submodule includes:
the first direct acquisition submodule is used for detecting the load average value of the CPU, if the load average value reaches a first preset value, the network load condition is the overload, and if the load average value does not reach a second preset value, the network load condition is the low load; wherein the first preset value is greater than the second preset value;
the second direct acquisition submodule is used for counting a flow value within a preset time, if the flow value reaches a third preset value, the network load condition is the overload, and if the flow value does not reach a fourth preset value, the network load condition is the low load; wherein the third preset value is greater than the fourth preset value.
Preferably, the network load condition obtaining module further includes:
the indirect acquisition submodule is used for receiving the network load condition reported by the terminal when the terminal is in a connection state; and the network load condition reported by the terminal is determined by the terminal according to the uplink and downlink rates before each discontinuous reception period is finished.
Compared with the prior art, the invention has the following advantages:
firstly, the network side equipment adjusts the discontinuous receiving period of the terminal according to the network load condition of the machine type communication, and the discontinuous receiving period of the terminal is adjusted according to the network load condition, so that the problem of network congestion can be solved, the effect of self-adaptively adjusting the discontinuous receiving period of the terminal in real time is achieved, each terminal can report data according to the adjusted discontinuous receiving period, and a large number of terminals are prevented from reporting data at the same time, so that the occurrence of network congestion is avoided.
Secondly, when the network load condition of the machine type communication is overload, the network side equipment configures a discontinuous receiving period which is longer than the current discontinuous receiving period for the terminal; when the network load condition of the machine type communication is low load, the network side equipment configures a discontinuous receiving period which is shorter than the current discontinuous receiving period for the terminal, so that the invention can flexibly adjust the discontinuous receiving period of the terminal in real time according to the network load condition. And when the network load condition of the machine type communication is low load, the network side equipment configures a discontinuous receiving period which is shorter than the current discontinuous receiving period for the terminal, and can also improve the network utilization rate when the network load condition is low load.
Finally, the invention selects the terminal according to the network load condition, adjusts the discontinuous receiving period of the selected terminal, not only can adjust the discontinuous receiving period of one terminal in real time, but also can adjust the discontinuous receiving periods of one or more groups of terminals in real time by grouping the terminals, thereby realizing the real-time adjustment of the discontinuous receiving periods of one or more groups of terminals by taking the group as the granularity and better processing the discontinuous receiving period in machine type communication. In addition, different groups of terminals of the invention set different priorities according to the requirements of the group of terminals on data delay, and the requirements of the terminals in the packets with high priorities on the data delay are higher than the requirements of the terminals in the packets with low priorities on the data delay. The invention does not adjust the discontinuous receiving periods of all terminals at the same time, but when the network load condition of machine type communication is overload, the network side equipment selects the terminals in the group with low priority; when the network load condition of the machine type communication is low load, the network side equipment selects the terminal in the packet with high priority, so that the reasonable processing of the discontinuous receiving period in the machine type communication is realized, the network congestion is avoided, and the throughput and the data processing efficiency of the system are ensured.
Drawings
Fig. 1 is a flowchart of a method for processing discontinuous reception cycles in machine type communication according to an embodiment of the present invention;
fig. 2 is a flowchart of a processing method of discontinuous reception cycles in machine type communication according to a second embodiment of the present invention;
fig. 3 is a flowchart of a processing method of discontinuous reception cycles in machine type communication according to a third embodiment of the present invention;
fig. 4 is a processing procedure of a discontinuous reception cycle in an idle state according to a third embodiment of the present invention;
fig. 5 is a processing procedure of a discontinuous reception cycle in a connected state according to a third embodiment of the present invention;
fig. 6 is a block diagram of a network-side device according to a fourth embodiment of the present invention;
fig. 7 is a block diagram of a network-side device according to a fifth embodiment of the present invention.
Detailed Description
The invention has the main idea that the discontinuous receiving period of the machine type communication terminal is adjusted in real time according to the network load condition of the machine type communication.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The first embodiment is as follows:
referring to fig. 1, a flowchart of a method for processing discontinuous reception cycles in machine type communication according to the present invention is shown, where this embodiment may specifically include the following steps:
s101, network side equipment acquires the network load condition of machine type communication;
s102, network side equipment adjusts the discontinuous receiving period of a terminal according to the network load condition of machine type communication;
the network side device may adjust the DRX cycle of the communication MTC terminal in real time according to the network load condition obtained in S101.
S103, the network side equipment sends a paging message to the terminal through the base station, wherein the paging message carries the adjusted discontinuous receiving period, so that the terminal can report data according to the adjusted discontinuous receiving period.
The network side firstly sends a Paging message to the base station, wherein the message carries the adjusted DRX period, and then the base station sends the Paging message to the MTC terminal, wherein the message carries the adjusted DRX period.
After receiving the adjusted DRX period, the MTC terminal can adjust the current DRX period in time, and the adjusted DRX period is adopted to achieve the purposes of saving electricity or improving efficiency.
In this embodiment, the network side device adjusts the discontinuous reception period of the terminal according to the network load condition of the machine type communication, and the discontinuous reception period of the terminal is adjusted according to the network load condition, so that the problem of network congestion can be solved, an effect of adaptively adjusting the discontinuous reception period of the terminal in real time is achieved, and the terminal reports data according to the adjusted discontinuous reception period, so that a large number of terminals report data at the same time, and the occurrence of network congestion is avoided.
Example two:
referring to fig. 2, a flowchart of a method for processing discontinuous reception cycles in machine type communication according to the present invention is shown, where this embodiment may specifically include the following steps:
s201, network side equipment acquires the network load condition of machine type communication;
for example, the network side device may obtain the network load condition by monitoring the current network load, may also obtain the network load condition by the network load condition reported by the MTC terminal, and may also obtain the network load condition by monitoring the traffic through the base station. In practical applications, the network side device may also obtain the network load condition in other manners, which is not illustrated here.
S202, the network side equipment selects a terminal according to the network load condition of the machine type communication;
in this embodiment, the MTC terminals are grouped, so that the network side device may select one or more MTC terminals, or may select one or more groups of MTC terminals.
The embodiment can be grouped according to different applications and common characteristics of the terminals. The MTC terminals in the same group have the same characteristics, and the terminals in the same group may have the same requirements on data delay, but are not completely the same, for example: terminals with delay requirements of 2.3ms, 3ms and 3.5ms are grouped in one group, and terminals with delay requirements of 4ms, 4.5ms and 4.5ms are grouped in another group. Furthermore, the difference of the service types may also cause the difference of the data delay, because the terminals of different service types are grouped into different groups, for example, the real-time monitoring and the periodic monitoring of the two service types have different requirements on the data delay, and thus the terminal processing the real-time monitoring service and the terminal processing the periodic detection service are grouped into different groups.
In the embodiment, the groups of the terminals are divided into priority levels, and different groups have different priority levels. Specifically, the network side device may obtain the priority of the terminal in the packet according to the packet identifier of the terminal and the correspondence between the packet identifier and the packet priority; the priority of all terminals in the packet is the same, and the requirement of the terminal in the packet with high priority on the data delay is higher than the requirement of the terminal in the packet with low priority on the data delay. Then, the network side may select one group or several groups of MTC terminals according to the priority of the group.
For example, some MTC terminal groups applying non-real time have intermittent data requests and have low requirements on data delay, and in this embodiment, the priority of these groups is set to be low, and when performing real-time adjustment for increasing DRX cycle on the MTC terminal, these groups having low priority will be preferentially adjusted.
For another example, some MTC terminal groups applied in real time, such as instant messaging and calls, have a higher requirement on data delay, and the priority of these groups is set to be high in this embodiment, and when performing real-time adjustment of increasing DRX cycle on the MTC terminal, these groups with high priority will be adjusted finally because the groups with high priority have a high requirement on data delay, if adjusting these groups with high priority will have a large influence on the application of the MTC terminal, the instant messaging or the calls will not be implemented smoothly because of the adjustment of DRX cycle, so the priority of these groups with high requirement on data delay is set to be high, and finally these groups with high requirement on data delay are adjusted, also to ensure normal use of the MTC terminal.
S203, the network side equipment adjusts the discontinuous receiving period of the selected terminal according to the network load condition of the machine type communication;
the MTC terminal selected here may be one MTC terminal or a group of MTC terminals. The present embodiment does not limit this.
Specifically, when the network load condition of the machine type communication is overload, the network side device configures a discontinuous reception cycle longer than the current discontinuous reception cycle for the terminal; therefore, the corresponding MTC terminal enters a longer DRX period, so that the number of the MTC terminals in data connection in the RRC connection state in the next DRX period is correspondingly reduced, and the overload condition of the network can be improved. Meanwhile, the corresponding MTC terminal saves power.
When the network load condition of machine type communication is low load, the network side equipment configures a discontinuous reception cycle shorter than the current discontinuous reception cycle for the terminal, so that under the condition of not influencing the base station load, due to the fact that DRX is shortened, the rate of some MTC terminals is improved, and the corresponding Block Error rate (BLER) is reduced.
Therefore, the discontinuous receiving period of the terminal can be flexibly adjusted in real time according to the network load condition. And when the network load condition of the machine type communication is low load, the network side equipment configures a discontinuous receiving period which is shorter than the current discontinuous receiving period for the terminal, and can also improve the network utilization rate when the network load condition is low load.
S204, the network side equipment sends a paging message to the selected terminal through the base station, wherein the paging message carries the adjusted discontinuous receiving period, so that the terminal can report data according to the adjusted discontinuous receiving period.
And similarly, the network side equipment can send a paging message to the selected MTC terminal through the base station, and can also send a paging message to the selected group of MTC terminals through the base station. If a group of MTC terminals is selected, all MTC terminals in the group receive the adjusted DRX cycle, that is, all MTC terminals in the selected group are adjusted in DRX cycle.
In this embodiment, a terminal is selected according to a network load condition, and a discontinuous reception cycle of the selected terminal is adjusted, so that not only can a discontinuous reception cycle of one terminal be adjusted in real time, but also by grouping the terminals, real-time adjustment of discontinuous reception cycles of one or more groups of terminals is realized by using a group as a granularity, and the discontinuous reception cycle in machine type communication is better processed. In addition, different groups of terminals in this embodiment set different priorities according to the requirements of the group of terminals on data delay, and the requirements of terminals in packets with high priorities on data delay are higher than the requirements of terminals in packets with low priorities on data delay. In this embodiment, the discontinuous reception cycles of all terminals are not adjusted simultaneously, but when the network load condition of machine type communication is overload, the network side device selects a terminal in a packet with a low priority; when the network load condition of the machine type communication is low load, the network side equipment selects the terminal in the packet with high priority, so that the reasonable processing of the discontinuous receiving period in the machine type communication is realized, the network congestion is avoided, and the throughput and the data processing efficiency of the system are ensured.
Example three:
referring to fig. 3, a flowchart of a method for processing discontinuous reception cycles in machine type communication according to the present invention is shown, where this embodiment may specifically include the following steps:
s301, network side equipment acquires the network load condition of machine type communication;
the network side device may specifically obtain the network load status of the machine type communication in the following manner provided by S3011 or S3012:
s3011, the network side device obtains the network load condition by detecting the current network load, or the network side device obtains the network load condition by counting the flow value in the preset time;
the network side device obtains the network load condition by detecting the current network load, and the method comprises the following steps:
the network side equipment detects the load average value of the CPU, if the load average value reaches a first preset value, the network load condition is overload, and if the load average value does not reach a second preset value, the network load condition is low load; wherein the first preset value is larger than the second preset value;
in this embodiment, the first preset value may be 80% of the CPU load, and if the average CPU load reaches 80%, it is determined that the network load condition is overload. The second preset value may be 30% of the CPU load, and if the average CPU load value does not reach 30%, it is determined that the network load condition is low, and obviously, 80% of the first preset value is greater than 30% of the second preset value.
The network side equipment obtains the network load condition by counting the flow value in the preset time, and the method comprises the following steps:
the network side equipment counts the flow value within the preset time, if the flow value reaches a third preset value, the network load condition is overload, and if the flow value does not reach a fourth preset value, the network load condition is low load; wherein the third preset value is greater than the fourth preset value.
In this embodiment, the third preset value may be 80% of the threshold of the traffic value, and if the traffic value reaches 80% of the threshold, the network load condition is considered as overload. The fourth preset value may be 30% of the threshold of the traffic value, and if the traffic value does not reach 30% of the threshold, the network load condition is considered as low load. It is clear that the third preset value of 80% is greater than the second preset value of 30%.
In this embodiment, the first preset value and the second preset value are for the CPU load, and the third preset value and the fourth preset value are for the flow value. In practical application, the first preset value, the second preset value, the third preset value, and the fourth preset value may be set according to practical situations, which is not limited in this embodiment.
S3012, the network side equipment receives the network load condition reported by the terminal;
in this embodiment, the network load condition reported by the terminal is determined according to the uplink and downlink rates before the terminal finishes each discontinuous reception period.
When the MTC terminal is in a connection state, before each DRX period is finished, the MTC terminal judges the network load condition according to the uplink and downlink rates, then the network load condition is sent to the network side through signaling, and the network side judges whether the network condition is overload or underload according to the network load condition reported by the MTC terminal.
S302, the network side equipment adjusts the discontinuous receiving period of the terminal according to the network load condition of the machine type communication; specifically, when the network load condition of the machine type communication is overload, the network side device configures a discontinuous reception cycle longer than the current discontinuous reception cycle for the terminal; when the network load condition of the machine type communication is low load, the network side equipment configures a discontinuous receiving period which is shorter than the current discontinuous receiving period for the terminal.
And S303, the network side equipment sends a paging message to the terminal through the base station, wherein the paging message carries the adjusted discontinuous receiving period so that the terminal can report data according to the adjusted discontinuous receiving period.
The network side firstly sends a Paging message to the base station, wherein the message carries the adjusted DRX period, and then the base station sends the Paging message to the MTC terminal, wherein the message carries the adjusted DRX period. After receiving the adjusted DRX period, the MTC terminal can adjust the current DRX period in time, and the adjusted DRX period is adopted to achieve the purposes of saving electricity or improving efficiency.
The embodiment introduces that the network side can obtain the network load condition by monitoring the current network load, and also can obtain the network load condition by the network load condition reported by the MTC terminal, and certainly, the network side can also perform traffic monitoring by the base station to further obtain the network load condition. The embodiment does not limit the manner in which the network side obtains the network load condition, and can select a proper manner for obtaining the network load according to the actual specific situation.
The following describes the above steps S301 to S303 by taking an LTE system and a network side device as an MME, and as shown in fig. 4, the processing procedure of the discontinuous reception cycle in the idle state is as follows:
s401, an MME acquires the network load condition of machine type communication;
s402, the MME adjusts the DRX period of the MTC terminal according to the network load condition;
s403, the MME sends the information to the base station through signaling, and carries the adjusted DRX period;
s404, the base station sends a paging message to the MTC terminal, wherein the paging message carries the adjusted DRX period;
s405, the MTC terminal modifies the current DRX period according to the adjusted DRX period carried in the paging message, and reports data according to the adjusted DRX period.
One way of processing the discontinuous reception cycle in the connected state is similar to that in the idle state, and the network load condition of the machine type communication is also obtained by the MME, which may refer to the processing procedure of the discontinuous reception cycle in the idle state in fig. 4; another way to handle the discontinuous reception cycle in the connected state is: the MME obtains the network load condition through the network load condition reported by the MTC terminal, as shown in fig. 5, including:
s501, the DRX period of the MTC terminal is reached, and the MTC terminal acquires the network load condition;
specifically, before each DRX cycle is finished, the MTC terminal determines the network load condition according to the uplink and downlink rates, and further obtains the network load condition.
S502, the MTC terminal sends the network load condition to the MME through NAS signaling;
s503, the MME adjusts the DRX period of the MTC terminal according to the network load condition;
s504, the MME informs the base station through signaling, and the signaling carries the adjusted DRX period;
s505, the base station sends a paging message to the MTC terminal, and the paging message carries the adjusted DRX period;
s506, the MTC terminal modifies the current DRX period according to the adjusted DRX period carried in the paging message, and reports data according to the adjusted DRX period.
Of course, the network side may also monitor traffic through the base station to obtain the network load condition. The embodiment does not limit the manner in which the network side obtains the network load condition, and can select a proper manner for obtaining the network load according to the actual specific situation.
Example four:
referring to fig. 6, a block diagram of a network-side device according to the present invention is shown, where this embodiment may specifically include the following modules:
a network load status acquiring module 1001 configured to acquire a network load status of machine type communication;
a cycle adjusting module 1002, configured to adjust a DRX cycle of the terminal according to a network load condition of the machine type communication;
a paging message sending module 1003, configured to send a paging message to the terminal through the base station, where the paging message carries the adjusted DRX cycle, so that the terminal reports data according to the adjusted discontinuous reception cycle.
The Paging message sending module 1003 first sends a Paging message to the base station, where the message carries the adjusted DRX cycle, and then the base station sends the Paging message to the MTC terminal, where the message carries the adjusted DRX cycle.
After receiving the adjusted DRX period, the MTC terminal can adjust the current DRX period in time, and the adjusted DRX period is adopted to achieve the purposes of saving electricity or improving the terminal speed and reducing the BLER.
In this embodiment, the period adjustment module 1002 adjusts the discontinuous reception period of the terminal according to the network load condition of the machine type communication acquired by the network load condition acquisition module 1001, and precisely, the period adjustment module 1002 adjusts the discontinuous reception period of the terminal according to the network load condition, so that the problem of network congestion can be solved, an effect of adaptively adjusting the discontinuous reception period of the terminal in real time is achieved, and the terminal reports data according to the adjusted discontinuous reception period, thereby preventing a large number of terminals from reporting data at the same time, and avoiding the occurrence of network congestion.
For the embodiment of the apparatus, since it is basically similar to the embodiment of the method, the description is simple, and the relevant points can be referred to the partial description of the embodiment of the method in fig. 1.
Example five:
referring to fig. 7, a block diagram of a network-side device according to the present invention is shown, where this embodiment may specifically include the following modules: a network load status acquisition module 2001, a selection module 2002, a period adjustment module 2003, and a paging message sending module 2004.
Wherein,
a network load status acquiring module 2001, configured to acquire a network load status of the machine type communication;
the network load status obtaining module 2001 may obtain the network load status by monitoring the current network load, may obtain the network load status by the network load status reported by the MTC terminal, and may obtain the network load status by monitoring the traffic through the base station.
Specifically, the network load status obtaining module 2001 in this embodiment may include:
the direct acquisition sub-module 20011 is configured to acquire a network load condition by detecting a current network load, or acquire the network load condition by counting a flow value within a preset time; the direct acquisition submodule 20011 may include:
the first direct acquisition submodule is used for detecting the load average value of the CPU, if the load average value reaches a first preset value, the network load condition is overload, and if the load average value does not reach a second preset value, the network load condition is low load; wherein the first preset value is larger than the second preset value;
the second direct acquisition submodule is used for counting the flow value within the preset time, if the flow value reaches a third preset value, the network load condition is overload, and if the flow value does not reach a fourth preset value, the network load condition is low load; wherein the third preset value is greater than the fourth preset value.
In this embodiment, the first preset value and the second preset value are for the CPU load, and the third preset value and the fourth preset value are for the flow value. In practical application, the first preset value, the second preset value, the third preset value, and the fourth preset value may be set according to practical situations, which is not limited in this embodiment.
The network load status acquiring module 2001 may further include:
the indirect acquisition sub-module 20012 is configured to receive a network load status reported by the terminal when the terminal is in a connected state; the network load condition reported by the terminal is determined by the terminal according to the uplink and downlink rates before each discontinuous receiving period is finished.
Before each DRX period is finished, the MTC terminal judges the network load condition according to the uplink and downlink rates, then sends the network load condition to the indirect acquisition submodule 20012 through signaling, and the indirect acquisition submodule 20012 judges whether the network condition is overload or low-load according to the network load condition reported by the MTC terminal.
In a preferred embodiment of the fifth embodiment, the network load condition obtaining module 2001 is further configured to perform traffic monitoring through the base station to further obtain the network load condition.
And a selecting module 2002 for selecting a terminal according to the network load condition of the machine type communication.
In this embodiment, the selecting module 2002 may select one MTC terminal or a group of MTC terminals. The present embodiment does not limit this. The embodiment can be grouped according to different applications and common characteristics of the terminals. The MTC terminals in the same group have the same characteristics, and the terminals in the same group may have the same requirements on data delay, but are not completely the same, for example: terminals with delay requirements of 2.3ms, 3ms and 3.5ms are grouped in one group, and terminals with delay requirements of 4ms, 4.5ms and 4.5ms are grouped in another group. Furthermore, the difference of the service types may also cause the difference of the data delay, because the terminals of different service types are grouped into different groups, for example, the real-time monitoring and the periodic monitoring of the two service types have different requirements on the data delay, and thus the terminal processing the real-time monitoring service and the terminal processing the periodic detection service are grouped into different groups.
In the embodiment, the groups of the terminals are divided into priority levels, and different groups have different priority levels. Specifically, the network side device may obtain the priority of the terminal in the packet according to the packet identifier of the terminal and the correspondence between the packet identifier and the packet priority; the priority of all terminals in the packet is the same, and the requirement of the terminal in the packet with high priority on the data delay is higher than the requirement of the terminal in the packet with low priority on the data delay. Then, the network side may select one group or several groups of MTC terminals according to the priority of the group.
Therefore, the selecting module 2002 in this embodiment may specifically include:
the priority acquisition submodule is used for acquiring the priority of the terminals in the group according to the terminal group identification and the corresponding relation between the group identification and the group priority; wherein, the priorities of all terminals included in the group are the same;
and the terminal selection submodule is used for selecting the terminals in the grouping according to the network load condition of the machine type communication and the priority of the terminals in the grouping.
The terminal selection submodule may include:
the first terminal selection submodule is used for selecting terminals in a group with low priority when the network load condition of machine type communication is overload;
the second terminal selection submodule is used for selecting terminals in a group with high priority when the network load condition of machine type communication is low load;
the requirement of the terminal in the packet with high priority on the data delay is higher than that of the terminal in the packet with low priority on the data delay.
A cycle adjusting module 2003, configured to adjust a DRX cycle of the selected terminal according to a network load condition of the machine type communication;
the period adjustment module 2003 may specifically include:
the long cycle configuration submodule 20031 is configured to configure a DRX cycle longer than the current DRX cycle for the terminal when the network load condition of the machine type communication is overload; therefore, the corresponding MTC terminal enters a longer DRX period, so that the number of the MTC terminals in data connection in the RRC connection state in the next DRX period is correspondingly reduced, and the overload condition of the network can be improved. Meanwhile, the corresponding MTC terminal saves power.
And a short cycle configuring submodule 20032, configured to configure a DRX cycle shorter than the current DRX cycle for the terminal when the network load condition of the machine type communication is a low load. When the network load condition is low load, the network side configures a DRX period shorter than the current DRX period of the MTC terminal, so that in the next DRX period, the MTC terminals in data connection in the RRC connection state are correspondingly increased, the rate of some MTC terminals is increased, and the corresponding BLER is reduced.
Specifically, when the network load condition acquired by the network load condition acquisition module 2001 is an overload, the cycle adjustment module 2003 configures, by using the long cycle configuration sub-module 20031, a DRX cycle longer than the current DRX cycle of the selected MTC terminal to the MTC terminal selected by the selection module 2002;
when the network load condition acquired by the network load condition acquiring module 2001 is a low load, the cycle adjusting module 2003 configures, through the short cycle configuration sub-module 20032, a DRX cycle shorter than the current DRX cycle of the selected MTC terminal to the MTC terminal selected by the selecting module 2002.
A paging message sending module 2004, configured to send a paging message to the selected terminal through the base station, where the paging message carries the adjusted DRX cycle, so that the terminal reports data according to the adjusted discontinuous reception cycle.
Likewise, the paging message sending module 2004 may send the paging message to one MTC terminal selected by the selection module 2002 through the base station, or may send the paging message to a group of MTC terminals selected by the selection module 2002 through the base station. If a group of MTC terminals is selected, all MTC terminals in the group receive the adjusted DRX cycle, that is, all MTC terminals in the selected group are adjusted in DRX cycle.
The Paging message sending module 2004 sends a Paging message to the base station, where the message carries the adjusted DRX cycle, and then the base station sends the Paging message to the MTC terminal, where the message carries the adjusted DRX cycle.
The MTC terminal can adjust the current DRX period in time after receiving the adjusted DRX period, and reports data by adopting the adjusted DRX period, so that a large number of terminals are prevented from reporting data at the same time, and network congestion is avoided.
The embodiment of the device is basically similar to the embodiment of the method, so that the description is simple, and relevant points can be obtained by referring to partial description of the embodiment of the method in fig. 2 and fig. 3.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
The present invention provides a method for processing discontinuous reception cycles in machine-type communication and a network-side device, which are introduced in detail above, and a specific example is applied in this document to illustrate the principle and the implementation of the present invention, and the description of the above embodiment is only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (12)
1. A method for processing discontinuous reception cycles in machine type communication is characterized by comprising the following steps:
network side equipment acquires the network load condition of machine type communication;
the network side equipment adjusts the discontinuous receiving period of the terminal according to the network load condition of the machine type communication;
the network side equipment sends a paging message to the terminal through a base station, wherein the paging message carries the adjusted discontinuous receiving period so that the terminal can report data according to the adjusted discontinuous receiving period;
the adjusting, by the network side device, the discontinuous reception cycle of the terminal according to the network load condition of the machine type communication includes: when the network load condition of the machine type communication is overload, the network side equipment configures a discontinuous receiving period which is longer than the current discontinuous receiving period for the terminal; and when the network load condition of the machine type communication is low load, the network side equipment configures a discontinuous reception cycle shorter than the current discontinuous reception cycle for the terminal.
2. The method according to claim 1, wherein before the network side device adjusts the discontinuous reception cycle of the terminal according to the network load condition of the machine type communication, the method further includes:
and the network side equipment selects a terminal according to the network load condition of the machine type communication.
3. The method according to claim 2, wherein the selecting, by the network-side device, the terminal according to the network load condition of the machine type communication includes:
the network side equipment acquires the priority of the terminal in the group according to the group identification of the terminal and the corresponding relation between the group identification and the group priority; wherein the priorities of all terminals included in the packet are the same;
and the network side equipment selects the terminals in the grouping according to the network load condition of the machine type communication and the priority of the terminals in the grouping.
4. The method according to claim 3, wherein the network side device selects the terminals in the packet according to the network load condition of the machine type communication and the priority of the terminals in the packet, and comprises:
when the network load condition of the machine type communication is overload, the network side equipment selects a terminal in a packet with low priority;
when the network load condition of the machine type communication is low load, the network side equipment selects a terminal in a packet with high priority;
and the requirement of the terminal in the packet with the high priority on the data delay is higher than the requirement of the terminal in the packet with the low priority on the data delay.
5. The method according to claim 1 or 4, wherein the acquiring, by the network-side device, the network load condition of the machine type communication includes:
the network side equipment acquires the network load condition by detecting the current network load, or acquires the network load condition by counting the flow value in the preset time;
the network side device obtains the network load condition by detecting the current network load, and the method comprises the following steps:
the network side equipment detects the load average value of the CPU, if the load average value reaches a first preset value, the network load condition is the overload, and if the load average value does not reach a second preset value, the network load condition is the low load; wherein the first preset value is greater than the second preset value;
the network side equipment obtains the network load condition by counting the flow value in the preset time, and the method comprises the following steps:
the network side equipment counts a flow value within a preset time, if the flow value reaches a third preset value, the network load condition is the overload, and if the flow value does not reach a fourth preset value, the network load condition is the low load; wherein the third preset value is greater than the fourth preset value.
6. The method according to claim 5, wherein when the terminal is in a connected state, the acquiring, by the network-side device, the network load condition of the machine type communication further comprises:
the network side equipment receives the network load condition reported by the terminal; and the network load condition reported by the terminal is determined by the terminal according to the uplink and downlink rates before each discontinuous reception period is finished.
7. A network-side device, comprising:
the network load condition acquisition module is used for acquiring the network load condition of the machine type communication;
the period adjusting module is used for adjusting the discontinuous receiving period of the terminal according to the network load condition of the machine type communication; the method specifically comprises the following steps: the long-period configuration submodule is used for configuring a discontinuous receiving period which is longer than the current discontinuous receiving period for the terminal when the network load condition of the machine type communication is overload; the short period configuration submodule is used for configuring a discontinuous receiving period shorter than the current discontinuous receiving period for the terminal when the network load condition of the machine type communication is low load;
and the paging message sending module is used for sending a paging message to the terminal through a base station, wherein the paging message carries the adjusted discontinuous receiving period so that the terminal can report data according to the adjusted discontinuous receiving period.
8. The apparatus of claim 7, further comprising:
and the selection module is used for selecting the terminal according to the network load condition of the machine type communication.
9. The apparatus of claim 8, wherein the selection module comprises:
the priority acquisition submodule is used for acquiring the priority of the terminals in the group according to the terminal group identification and the corresponding relation between the group identification and the group priority; wherein the priorities of all terminals included in the packet are the same;
and the terminal selection submodule is used for selecting the terminals in the grouping according to the network load condition of the machine type communication and the priority of the terminals in the grouping.
10. The apparatus of claim 9, wherein the terminal selection submodule comprises:
the first terminal selection submodule is used for selecting terminals in a group with low priority when the network load condition of machine type communication is overload;
the second terminal selection submodule is used for selecting terminals in a group with high priority when the network load condition of machine type communication is low load;
and the requirement of the terminal in the packet with the high priority on the data delay is higher than the requirement of the terminal in the packet with the low priority on the data delay.
11. The apparatus according to claim 7 or 10, wherein the network load condition obtaining module comprises:
the direct acquisition submodule is used for acquiring the network load condition by detecting the current network load or acquiring the network load condition by counting the flow value in the preset time;
the direct acquisition submodule includes:
the first direct acquisition submodule is used for detecting the load average value of the CPU, if the load average value reaches a first preset value, the network load condition is the overload, and if the load average value does not reach a second preset value, the network load condition is the low load; wherein the first preset value is greater than the second preset value;
the second direct acquisition submodule is used for counting a flow value within a preset time, if the flow value reaches a third preset value, the network load condition is the overload, and if the flow value does not reach a fourth preset value, the network load condition is the low load; wherein the third preset value is greater than the fourth preset value.
12. The apparatus of claim 11, wherein the network load condition obtaining module further comprises:
the indirect acquisition submodule is used for receiving the network load condition reported by the terminal when the terminal is in a connection state; and the network load condition reported by the terminal is determined by the terminal according to the uplink and downlink rates before each discontinuous reception period is finished.
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| CN105099943B (en) * | 2015-05-22 | 2018-09-11 | 中国联合网络通信集团有限公司 | A kind of method and device for realizing data processing |
| CN106535304A (en) * | 2015-09-11 | 2017-03-22 | 展讯通信（上海）有限公司 | MTC terminal control method and apparatus |
| EP3520554B1 (en) | 2016-09-30 | 2022-03-23 | Nokia Solutions and Networks Oy | Enhanced machine type communication radio resource management requirements based on machine type communication physical downlink control channel monitoring |
| CN109451842B (en) * | 2017-12-14 | 2022-03-01 | 北京小米移动软件有限公司 | Power saving method and device for user equipment, user equipment and base station |
| CN108093089B (en) * | 2018-02-13 | 2020-04-14 | Oppo广东移动通信有限公司 | Paging monitoring method, device, system and storage medium |
| CN108419290B (en) * | 2018-02-13 | 2021-08-03 | Oppo广东移动通信有限公司 | Paging monitoring method, device, terminal, base station, system and storage medium |
| CN109885393A (en) | 2019-01-10 | 2019-06-14 | 华为技术有限公司 | Read-write requests processing method, device, electronic equipment and storage medium |
| CN110769490B (en) * | 2019-08-30 | 2023-07-18 | 东南大学 | Intelligent grouping self-adaptive energy-saving method suitable for various terminal systems |
| CN111769993B (en) * | 2020-07-15 | 2022-05-03 | 唐山学院 | Method and system for dynamically calling communication gateway of Internet of things |
| CN116113015A (en) * | 2021-11-09 | 2023-05-12 | 华为技术有限公司 | Communication method and communication device |
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