CN111372266B - Method and device for adjusting Control Channel Element (CCE) aggregation level - Google Patents
Method and device for adjusting Control Channel Element (CCE) aggregation level Download PDFInfo
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- CN111372266B CN111372266B CN201811600365.2A CN201811600365A CN111372266B CN 111372266 B CN111372266 B CN 111372266B CN 201811600365 A CN201811600365 A CN 201811600365A CN 111372266 B CN111372266 B CN 111372266B
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Abstract
The embodiment of the invention provides a method and a device for adjusting CCE aggregation levels of control channel elements. The method comprises the following steps: sending a configuration message to user equipment, wherein the configuration message comprises a measurement object, an event triggering CCE grade adjustment and a threshold; receiving a measurement report message sent by user equipment, wherein the measurement report message comprises event report information and a value of a measurement object; and adjusting the aggregation level of the CCE according to the event report information and the value of the measurement object. The embodiment of the invention configures the event and the threshold for triggering the CCE grade adjustment through the base station, and the user equipment reports the measurement message according to the configuration of the base station, so that the base station can directly adjust the CCE grade according to the channel quality measured by the terminal, thereby more accurately, simply and conveniently controlling the CCE.
Description
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to a method and a device for adjusting CCE aggregation levels of control channel elements.
Background
As the user scale of an LTE (Long Term Evolution) network is larger and larger, the network load is gradually increased, and the interference received by a PDCCH (Physical Downlink Control Channel) is also larger and larger. In order to reduce or avoid serious degradation of network performance caused by PDCCH interference increase, it is necessary to Control the load and interference of a PDCCH Channel, and a Control target is that an eNB (LTE base station) selects an appropriate CCE (Control Channel Element) aggregation level according to the Channel quality of a UE (User Equipment, such as a mobile phone).
In the conventional CCE adjusting method, an eNB preliminarily determines link Quality of a UE according to a CQI (Channel Quality Indicator) of a PDSCH (Physical Downlink shared Channel), estimates Channel Quality of a PDCCH, and adjusts a CCE aggregation level. Specifically, the eNB preliminarily determines the link quality of the UE according to the CQI of the PDSCH, and the CQI of the PDSCH depends on a current MIMO (Multiple-Input Multiple-Output) mode, and the MIMO mode adopted by the PDSCH and the MIMO mode adopted by the PDCCH may be different, and the spectral efficiency of the PDSCH needs to be corrected, so as to obtain the spectral efficiency equivalent to the PDCCH.
Therefore, the existing CCE adjusting method has the problem that the CCE cannot be equivalent to the real channel quality, and particularly when a large-scale 3D-MIMO antenna is adopted, the difference between the PDSCH forming gain and the PDCCH is larger, and the CCE cannot be accurately controlled.
Disclosure of Invention
Aiming at the problems in the prior art, the embodiment of the invention provides a method and a device for adjusting the CCE aggregation level of a control channel element.
In a first aspect, an embodiment of the present invention provides a method for adjusting a CCE aggregation level, where the method is applied to a network device, and the method includes:
sending a configuration message to user equipment, wherein the configuration message comprises a measurement object, an event triggering CCE grade adjustment and a threshold;
receiving a measurement report message sent by user equipment, wherein the measurement report message comprises event report information and a value of a measurement object;
and adjusting the aggregation level of the CCE according to the event report information and the value of the measurement object.
In a second aspect, an embodiment of the present invention provides a method for adjusting a CCE aggregation level, where the method is applied to a user equipment, and the method includes:
receiving a configuration message sent by network side equipment, wherein the configuration message comprises a measurement object, an event triggering CCE grade adjustment and a threshold;
and sending a measurement report message to the network side equipment according to the configuration message, wherein the measurement report message comprises event report information and a value of a measurement object.
In a third aspect, an embodiment of the present invention provides an apparatus for adjusting a CCE aggregation level, where the apparatus is located in a network device, and the apparatus includes:
a first sending unit, configured to send a configuration message to a user equipment, where the configuration message includes a measurement object, an event triggering CCE level adjustment, and a threshold;
a first receiving unit, configured to receive a measurement report message sent by a user equipment, where the measurement report message includes event report information and a value of a measurement object;
and the adjusting unit is used for adjusting the aggregation level of the CCE according to the event reporting information and the value of the measurement object.
In a fourth aspect, an embodiment of the present invention provides an apparatus for adjusting a CCE aggregation level, where the apparatus is located in user equipment, and the apparatus includes:
a second receiving unit, configured to receive a configuration message sent by a network side device, where the configuration message includes a measurement object, an event triggering CCE level adjustment, and a threshold;
and a second sending unit, configured to send a measurement report message to the network side device according to the configuration message, where the measurement report message includes event report information and a value of a measurement object.
In a fifth aspect, an embodiment of the present invention further provides an electronic device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and when the processor executes the computer program, the processor implements the method provided in the first aspect or the second aspect.
In a sixth aspect, the present invention further provides a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to implement the method provided in the first aspect or the second aspect.
The embodiment of the invention configures the event and the threshold for triggering the CCE grade adjustment through the base station, and the user equipment reports the measurement message according to the configuration of the base station, so that the base station can directly adjust the CCE grade according to the channel quality measured by the terminal, thereby more accurately, simply and conveniently controlling the CCE.
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 some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a flowchart illustrating a method for adjusting CCE aggregation levels according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating a process of controlling CCE aggregation level adjustment by an internal module at a base station side according to an embodiment of the present invention.
Fig. 3 is a flowchart illustrating a method for adjusting CCE aggregation levels according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an apparatus for adjusting CCE aggregation levels according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an apparatus for adjusting CCE aggregation levels according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present 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.
Fig. 1 shows a flowchart of a method for adjusting a CCE aggregation level of a network side according to an embodiment of the present invention.
After a User Equipment (UE) accesses an eNB (evolved Node B), initially configuring a default CCE aggregation level, where the default CCE aggregation level may be configured and a configuration range (1,2,4, 8); under the general network coverage condition, the RSRQ (Reference Signal Received Quality) of the channel condition when the UE accesses is between 10 and 20, and the default value is set to 4.
As shown in fig. 1, the method for adjusting CCE aggregation levels of a network side according to an embodiment of the present invention specifically includes the following steps:
s11, sending a configuration message to the user equipment, wherein the configuration message comprises a measurement object, an event triggering CCE grade adjustment and a threshold;
in particular, the measurement object comprises RSRQ reflecting and indicating the signal-to-noise ratio and interference level of the current channel quality.
The eNB needs the UE to report the measurement result (including RSRP, RSRQ, etc.), and the reporting is divided into periodic reporting and event-triggered reporting. The periodic reporting is configured by the base station, and the UE directly reports the measurement result. Event-triggered reporting includes: event a1, reporting that the serving cell is better than the absolute threshold; event a2, reporting that the serving cell difference is above an absolute threshold.
The eNB configures measurement parameters, event reporting conditions and thresholds for adjusting the CCE from one grade to another grade for the UE. Specifically, the method comprises the steps of measuring the RSRQ of the cell; configuring an A1 event, wherein the CCE aggregation level is reduced when the A1 event is triggered; configuring an A2 event, wherein the CCE aggregation level is increased when the event is triggered; the configuration a1 and a2 events may be configured via an RRC Connection Reconfiguration message.
The thresholds for CCE adjustment from one level to another are configured by different reportConfigId. The reportConfigId configuration information includes an event and a threshold for triggering CCE level adjustment, and the CCE is adjusted to different levels and configured to different reportconfigids (reportConfigId 1, reportConfigId 2, etc.). The configuration information, e.g., reportConfigId 1, includes an event that triggers a CCE downgrade to level 4 of a1 with a threshold of RSRQ > 10. The configuration information of reportConfigId 4 includes an event that triggers an upgrade of CCE to level 2 as a2 with a threshold of RSRQ < 25. Therefore, the original CCE aggregation level is not recorded, the adjustment is directly carried out, and the processing flow is simpler.
S12, receiving a measurement report message sent by user equipment, wherein the measurement report message comprises event report information and a value of a measurement object;
specifically, the measurement report message is a message reported when a signal measured by the terminal meets an event triggering CCE level adjustment and a threshold, and the measurement report message includes event report information and a value of a measurement object RSRQ.
The event reporting information comprises whether the reporting event is an A1 event or an A2 event. The method may further include representing the event by using a corresponding measId number when RSRQ of a signal measured by the terminal reaches a certain threshold and meets conditions of event trigger duration and a hysteresis factor, for example, a signal reported by the terminal meets configuration information of reportConfigIdId 1, which is represented by measId 1, and the measId 1 is carried in a measurement report message and reported, and the message also carries RSRQ of the cell.
S13, adjusting the aggregation level of CCE according to the event report information and the value of the measurement object;
specifically, the base station receives RSRQ reported by the UE with different events. And when the A1 event is reported, adjusting the CCE aggregation level according to the CCE degradation threshold. When an A2 event is reported, the CCE aggregation level is directly adjusted according to the CCE upgrading threshold.
It should be noted that, in the embodiment of the present invention, the eNB can directly adjust the CCE aggregation level according to the event number measId in the measurement report message. For example, the received report message carries an event number measId 1 corresponding to the configuration message reportConfigIdId 1, and the CCE aggregation level is adjusted to 4; and carrying an event number measId 4 corresponding to the configuration message reportConfigIdId 4, and adjusting the CCE aggregation level to 2.
The embodiment of the invention configures the event and the threshold for triggering the CCE grade adjustment through the base station, and the user equipment reports the measurement message according to the configuration of the base station, so that the base station can directly adjust the CCE grade according to the channel quality measured by the terminal, thereby more accurately, simply and conveniently controlling the CCE.
Fig. 2 is a flowchart illustrating that the base station side internal module controls the adjustment of the CCE aggregation level according to an embodiment of the present invention.
The adjustment of CCE aggregation level inside the base station side involves the interaction of 3 modules, an OM (Operation and Maintenance) module, an RRC (Radio Resource Control) module, and an MAC (Media Access Control) module. The OM module manages parameter configuration and modification of each module; the RRC module processes signaling messages between the eNB base station and the UE, wherein the signaling messages comprise sending measurement item configuration messages and receiving measurement reporting messages; the MAC module handles scheduling between the eNB base station and the UE, including CCE aggregation levels used by the PDCCH.
As shown in fig. 2, the step of controlling the adjustment of the CCE aggregation level by the base station side internal module includes:
the OM module requests to establish initial measurement parameter configuration or requests to modify measurement parameters from the RRC module;
the RRC module configures a terminal measurement parameter RSRQ and sends the CCE aggregation level initially configured to the MAC module;
and after receiving the measurement report message sent by the terminal, the RRC module updates the CCE grade of the corresponding user according to the measurement report message and sends the updated CCE grade to the MAC module so that the MAC module carries out scheduling by using the new CCE aggregation grade.
On the basis of the above embodiment, the configuration message includes:
an A1 event reporting condition, an A2 event reporting condition, a threshold of a measurement object triggering CCE degradation under an A1 event and a threshold of a measurement object triggering CCE upgrading under an A2 event;
the parameters of the A1 event include an A1 event trigger threshold, a first trigger duration, and a first hysteresis factor; the A1 event reporting condition is that the serving cell signal quality is continuously higher than the sum of the A1 event trigger threshold and the first hysteresis factor within a first trigger duration;
the parameters of the A2 event include an A2 event trigger threshold, a second trigger duration, and a second hysteresis factor; the a2 event reporting condition is that the serving cell signal quality is continuously lower than the difference between the a2 event trigger threshold and the second hysteresis factor within a second trigger duration;
the threshold of the measurement object triggering CCE degradation under the A1 event comprises the following steps: triggering a first threshold value of the RSRQ of CCE degraded to level 4, a second threshold value of the RSRQ degraded to level 2 and a third threshold value of the RSRQ degraded to level 1;
the thresholds of the measurement object triggering CCE upgrade under the a2 event include: triggering a fourth threshold value of CCE upgraded to RSRQ of level 2, a fifth threshold value of RSRQ upgraded to level 4 and a sixth threshold value of RSRQ upgraded to level 8.
Specifically, the CCE aggregation level decreases upon an a1 event trigger, and the thresholds of the measurement objects triggering CCE demotion under an a1 event include: triggering a CCE downgrade to a level 4 RSRQ threshold, a CCE downgrade to a level 2 RSRQ threshold, and a CCE downgrade to a level 1 RSRQ threshold.
The CCE aggregation level increases upon an a2 event trigger, and the thresholds for measurement objects triggering CCE upgrade at an a2 event include: triggering CCE to be upgraded to level 2 RSRQ, level 4 RSRQ and level 8 RSRQ.
On the basis of the foregoing embodiment, S13 specifically includes:
when the reporting event is A1, and the value of the measurement object is higher than a first threshold and not higher than a second threshold, degrading the CCE aggregation level to 4;
when the reporting event is A1, and the value of the measurement object is higher than the second threshold and not higher than the third threshold, degrading the CCE aggregation level to 2;
when the reporting event is A1 and the value of the measurement object is higher than a third threshold, degrading the CCE aggregation level to 1;
when the reporting event is A2 and the value of the measurement object is lower than the fourth threshold and not lower than the fifth threshold, upgrading the CCE aggregation level to 2;
when the reporting event is A2, and the value of the measurement object is lower than a fifth threshold and not lower than a sixth threshold, upgrading the CCE aggregation level to 4;
and upgrading the CCE aggregation level to 8 when the reporting event is A2 and the value of the measurement object is lower than a sixth threshold.
Specifically, the base station receives RSRQ reported by the UE with different events, and adjusts the CCE aggregation level of the UE according to the CCE upgrading and downgrading threshold.
Table 1 shows the configuration parameters for CCE downgrading in the a1 event.
TABLE 1
As shown in table 1, the first threshold for the aggregation level downgrade from 8 to 4 is RSRQ > 10; a second threshold degraded from 4 to 2 is RSRQ > 16; the third threshold, degraded from 2 to 1, is RSRQ > 28.
Receiving an A1 report event at a base station, and if the received RSRQ is in the interval of 10-16, matching the CCE to be 4; a CCE is assigned to 2 if the received RSRQ is in the interval 16 to 28, and to 1 if the received RSRQ is greater than 28.
An example of configuring reportConfigId 1 according to table 1 is as follows:
table 2 shows the configuration parameters for CCE upgrade at the a2 event.
TABLE 2
As shown in table 2, the fourth threshold for the aggregation level to be upgraded from 1 to 2 is RSRQ < 25; a fifth threshold, upgraded from 2 to 4, is RSRQ < 14; the second threshold, upgraded to 8 from 4, is RSRQ < 8.
Receiving an A2 event at a base station, and if the received RSRQ is in the interval of 25 to 14, the CCE is configured to be 2; if the received RSRQ is in the interval of 14 to 8, the CCE is configured to be 4; if the received RSRQ is less than 8, the CCE is configured to 8.
An embodiment of configuring reportConfigId 4 according to table 2 is as follows:
fig. 3 is a flowchart illustrating a method for adjusting CCE aggregation levels of a user side according to an embodiment of the present invention;
as shown in fig. 3, the method for adjusting CCE aggregation levels at a user side specifically includes the following steps:
s21, receiving a configuration message sent by a network side device, wherein the configuration message comprises a measurement object, an event triggering CCE grade adjustment and a threshold;
specifically, the UE receives a configuration message sent by the network side device, where the configuration message includes a measurement object (RSRQ), an a1 event, an a2 event reporting condition, a threshold for degrading CCEs to each level in an a1 event, and a threshold for upgrading CCEs to each level in an a2 event.
S22, sending a measurement report message to the network side equipment according to the configuration message, wherein the measurement report message comprises event report information and a value of a measurement object.
Specifically, the UE reports a measurementReport message (measurement report message) according to the configuration. The concrete mode is as follows: the terminal receives the RRC connection reconfiguration message sent by the base station and measures the signals of the base station. When the signal becomes good, the A1 event reporting condition of the configuration message is met; when the signal is degraded, the a2 event reporting condition of the configuration message is satisfied. And if the RSRQ of the signal reaches a certain threshold and meets the conditions of event trigger duration and a hysteresis factor, the terminal uses a corresponding measId number to represent the event and reports a measurement report message to the base station, wherein the message carries the RSRQ of the cell.
The embodiment of the invention configures the event and the threshold for triggering the CCE grade adjustment through the base station, and the user equipment reports the measurement message according to the configuration of the base station, so that the base station can directly adjust the CCE grade according to the channel quality measured by the terminal, thereby more accurately, simply and conveniently controlling the CCE.
On the basis of the above embodiment, the configuration message includes:
an A1 event reporting condition, an A2 event reporting condition, a threshold of a measurement object triggering CCE degradation under an A1 event and a threshold of a measurement object triggering CCE upgrading under an A2 event;
the parameters of the A1 event include an A1 event trigger threshold, a first trigger duration, and a first hysteresis factor; the A1 event reporting condition is that the serving cell signal quality is continuously higher than the sum of the A1 event trigger threshold and the first hysteresis factor within a first trigger duration;
the parameters of the A2 event include an A2 event trigger threshold, a second trigger duration, and a second hysteresis factor; the a2 event reporting condition is that the serving cell signal quality is continuously lower than the difference between the a2 event trigger threshold and the second hysteresis factor within a second trigger duration;
the threshold of the measurement object triggering CCE degradation under the A1 event comprises the following steps: triggering a first threshold value of the RSRQ of CCE degraded to level 4, a second threshold value of the RSRQ degraded to level 2 and a third threshold value of the RSRQ degraded to level 1;
the thresholds of the measurement object triggering CCE upgrade under the a2 event include: triggering a fourth threshold value of CCE upgraded to RSRQ of level 2, a fifth threshold value of RSRQ upgraded to level 4 and a sixth threshold value of RSRQ upgraded to level 8.
Specifically, the CCE aggregation level decreases upon an a1 event trigger, and the thresholds of the measurement objects triggering CCE demotion under an a1 event include: triggering a CCE downgrade to a level 4 RSRQ threshold, a CCE downgrade to a level 2 RSRQ threshold, and a CCE downgrade to a level 1 RSRQ threshold.
The CCE aggregation level increases upon an a2 event trigger, and the thresholds for measurement objects triggering CCE upgrade at an a2 event include: triggering CCE to be upgraded to level 2 RSRQ, level 4 RSRQ and level 8 RSRQ.
Fig. 4 is a schematic structural diagram illustrating an apparatus for adjusting a CCE aggregation level at a network side according to an embodiment of the present invention.
After the UE accesses the eNB, initially configuring a default CCE aggregation level, wherein the default value can be configured, and the configuration range is (1,2,4, 8); according to the general network coverage condition, the channel condition RSRQ when the UE accesses is between 10 and 20, and the default value is configured to be 4.
As shown in fig. 4, the apparatus provided in the embodiment of the present invention includes a first sending unit 11, a first receiving unit 12, and an adjusting unit 13, where:
the first sending unit 11 is configured to send a configuration message to the user equipment, where the configuration message includes a measurement object, an event triggering CCE level adjustment, and a threshold;
in particular, the measurement object comprises RSRQ reflecting and indicating the signal-to-noise ratio and interference level of the current channel quality.
The eNB needs the UE to report the measurement result (including RSRP, RSRQ, etc.), and the reporting is divided into periodic reporting and event-triggered reporting. The periodic reporting is configured by the base station, and the UE directly reports the measurement result. Event-triggered reporting includes: event a1, reporting that the serving cell is better than the absolute threshold; event a2, reporting that the serving cell difference is above an absolute threshold.
The eNB configures measurement parameters, event reporting conditions and thresholds for adjusting the CCE from one grade to another grade for the UE. Specifically, the method comprises the steps of measuring the RSRQ of the cell; configuring an A1 event, wherein the CCE aggregation level is reduced when the A1 event is triggered; configuring an A2 event, wherein the CCE aggregation level is increased when the event is triggered; the configuration a1 and a2 events may be configured via an RRC Connection Reconfiguration message.
The thresholds for CCE adjustment from one level to another are configured by different reportConfigId. The reportConfigId configuration information includes an event and a threshold for triggering CCE level adjustment, and the CCE is adjusted to different levels and configured to different reportconfigids (reportConfigId 1, reportConfigId 2, etc.). The configuration information, e.g., reportConfigId 1, includes an event that triggers a CCE downgrade to level 4 of a1 with a threshold of RSRQ > 10. The configuration information of reportConfigId 4 includes an event that triggers an upgrade of CCE to level 2 as a2 with a threshold of RSRQ < 25. Therefore, the original CCE aggregation level is not recorded, the adjustment is directly carried out, and the processing flow is simpler.
The first receiving unit 12 is configured to receive a measurement report message sent by a user equipment, where the measurement report message includes event report information and a value of a measurement object;
specifically, the measurement report message is a message reported when a signal measured by the terminal meets an event triggering CCE level adjustment and a threshold, and the measurement report message includes event report information and a value of a measurement object RSRQ.
The event reporting information comprises whether the reporting event is an A1 event or an A2 event. The method may further include representing the event by using a corresponding measId number when RSRQ of a signal measured by the terminal reaches a certain threshold and meets conditions of event trigger duration and a hysteresis factor, for example, a signal reported by the terminal meets configuration information of reportConfigIdId 1, which is represented by measId 1, and the measId 1 is carried in a measurement report message and reported, and the message also carries RSRQ of the cell.
The adjusting unit 13 is configured to adjust the aggregation level of the CCE according to the event reporting information and the value of the measurement object.
Specifically, the base station receives RSRQ reported by the UE with different events. And when the A1 event is reported, adjusting the CCE aggregation level according to the CCE degradation threshold. When an A2 event is reported, the CCE aggregation level is directly adjusted according to the CCE upgrading threshold.
It should be noted that, in the embodiment of the present invention, the eNB can directly adjust the CCE aggregation level according to the event number in the measurement report message. For example, the received report message carries an event number measId 1 corresponding to the configuration message reportConfigIdId 1, and the CCE aggregation level is adjusted to 4; and if the event number measId 4 carrying the corresponding configuration message reportConfigIdId 4 is carried, the CCE aggregation level is adjusted to 2.
The embodiment of the invention configures the event and the threshold for triggering the CCE grade adjustment through the base station, and the user equipment reports the measurement message according to the configuration of the base station, so that the base station can directly adjust the CCE grade according to the channel quality measured by the terminal, thereby more accurately, simply and conveniently controlling the CCE.
The adjustment of CCE aggregation level inside the base station side relates to the interaction of 3 modules, namely OM (operation maintenance module), RRC (radio resource control module) and MAC (media access control module). The OM module manages parameter configuration and modification of each module; the RRC module processes signaling messages between the eNB base station and the UE, wherein the signaling messages comprise sending measurement item configuration messages and receiving measurement reporting messages; the MAC module handles scheduling between the eNB base station and the UE, including CCE aggregation levels used by the PDCCH.
The process of controlling CCE aggregation level adjustment by an internal module at a base station side is shown in fig. 2, and details of the embodiment of the present invention are not described again.
On the basis of the above embodiment, the configuration message includes:
an A1 event reporting condition, an A2 event reporting condition, a threshold of a measurement object triggering CCE degradation under an A1 event and a threshold of a measurement object triggering CCE upgrading under an A2 event;
the parameters of the A1 event include an A1 event trigger threshold, a first trigger duration, and a first hysteresis factor; the A1 event reporting condition is that the serving cell signal quality is continuously higher than the sum of the A1 event trigger threshold and the first hysteresis factor within a first trigger duration;
the parameters of the A2 event include an A2 event trigger threshold, a second trigger duration, and a second hysteresis factor; the a2 event reporting condition is that the serving cell signal quality is continuously lower than the difference between the a2 event trigger threshold and the second hysteresis factor within a second trigger duration;
the threshold of the measurement object triggering CCE degradation under the A1 event comprises the following steps: triggering a first threshold value of the RSRQ of CCE degraded to level 4, a second threshold value of the RSRQ degraded to level 2 and a third threshold value of the RSRQ degraded to level 1;
the thresholds of the measurement object triggering CCE upgrade under the a2 event include: triggering a fourth threshold value of CCE upgraded to RSRQ of level 2, a fifth threshold value of RSRQ upgraded to level 4 and a sixth threshold value of RSRQ upgraded to level 8.
Specifically, the CCE aggregation level decreases upon an a1 event trigger, and the thresholds of the measurement objects triggering CCE demotion under an a1 event include: triggering a CCE downgrade to a level 4 RSRQ threshold, a CCE downgrade to a level 2 RSRQ threshold, and a CCE downgrade to a level 1 RSRQ threshold.
The CCE aggregation level increases upon an a2 event trigger, and the thresholds for measurement objects triggering CCE upgrade at an a2 event include: triggering the CCE to be upgraded to the level 2 RSRQ threshold value, and upgrading the CCE to
A RSRQ threshold of level 4 and a CCE upgrade to a RSRQ threshold of level 8.
On the basis of the foregoing embodiment, the adjusting unit 13 is configured to downgrade the CCE aggregation level to 4 when the reporting event is a1, and the value of the measurement object is higher than the first threshold and not higher than the second threshold;
when the reporting event is A1, and the value of the measurement object is higher than the second threshold and not higher than the third threshold, degrading the CCE aggregation level to 2;
when the reporting event is A1 and the value of the measurement object is higher than a third threshold, degrading the CCE aggregation level to 1;
when the reporting event is A2 and the value of the measurement object is lower than the fourth threshold and not lower than the fifth threshold, upgrading the CCE aggregation level to 2;
when the reporting event is A2, and the value of the measurement object is lower than a fifth threshold and not lower than a sixth threshold, upgrading the CCE aggregation level to 4;
and upgrading the CCE aggregation level to 8 when the reporting event is A2 and the value of the measurement object is lower than a sixth threshold.
Specifically, the base station receives RSRQ reported by the UE with different events, and adjusts the CCE aggregation level of the UE according to the CCE upgrading and downgrading threshold.
As shown in table 1, the first threshold for the aggregation level downgrade from 8 to 4 is RSRQ > 10; a second threshold degraded from 4 to 2 is RSRQ > 16; the third threshold, degraded from 2 to 1, is RSRQ > 28.
Receiving an A1 report event at a base station, and if the received RSRQ is in the interval of 10-16, matching the CCE to be 4; a CCE is assigned to 2 if the received RSRQ is in the interval 16 to 28, and to 1 if the received RSRQ is greater than 28.
As shown in table 2, the fourth threshold for the aggregation level to be upgraded from 1 to 2 is RSRQ < 25; a fifth threshold, upgraded from 2 to 4, is RSRQ < 14; the second threshold, upgraded to 8 from 4, is RSRQ < 8.
Receiving an A2 event at a base station, and if the received RSRQ is in the interval of 25 to 14, the CCE is configured to be 2; if the received RSRQ is in the interval of 14 to 8, the CCE is configured to be 4; if the received RSRQ is less than 8, the CCE is configured to 8.
Fig. 5 is a schematic structural diagram illustrating an apparatus for adjusting a CCE aggregation level at a network side according to an embodiment of the present invention.
As shown in fig. 5, the apparatus provided in the embodiment of the present invention includes a second receiving unit 21 and a second sending unit 22, where:
the second receiving unit 21 is configured to receive a configuration message sent by a network side device, where the configuration message includes a measurement object, an event triggering CCE level adjustment, and a threshold;
specifically, the UE receives a configuration message sent by the network side device, where the configuration message includes a measurement object (RSRQ), an a1 event, an a2 event reporting condition, a threshold for degrading CCEs to each level in an a1 event, and a threshold for upgrading CCEs to each level in an a2 event.
The second sending unit 22 is configured to send a measurement report message to the network side device according to the configuration message, where the measurement report message includes event report information and a value of a measurement object.
Specifically, the UE reports the measurement report message according to the configuration. The concrete mode is as follows: the terminal receives the RRC connection reconfiguration message sent by the base station and measures the signals of the base station. When the signal becomes good, the A1 event reporting condition of the configuration message is met; when the signal is degraded, the a2 event reporting condition of the configuration message is satisfied. And if the RSRQ of the signal reaches a certain threshold and meets the conditions of event trigger duration and a hysteresis factor, the terminal uses a corresponding measId number to represent the event and reports a measurement report message to the base station, wherein the message carries the RSRQ of the cell.
The embodiment of the invention configures the event and the threshold for triggering the CCE grade adjustment through the base station, and the user equipment reports the measurement message according to the configuration of the base station, so that the base station can directly adjust the CCE grade according to the channel quality measured by the terminal, thereby more accurately, simply and conveniently controlling the CCE.
On the basis of the above embodiment, the configuration message includes:
an A1 event reporting condition, an A2 event reporting condition, a threshold of a measurement object triggering CCE degradation under an A1 event and a threshold of a measurement object triggering CCE upgrading under an A2 event;
the parameters of the A1 event include an A1 event trigger threshold, a first trigger duration, and a first hysteresis factor; the A1 event reporting condition is that the serving cell signal quality is continuously higher than the sum of the A1 event trigger threshold and the first hysteresis factor within a first trigger duration;
the parameters of the A2 event include an A2 event trigger threshold, a second trigger duration, and a second hysteresis factor; the a2 event reporting condition is that the serving cell signal quality is continuously lower than the difference between the a2 event trigger threshold and the second hysteresis factor within a second trigger duration;
the threshold of the measurement object triggering CCE degradation under the A1 event comprises the following steps: triggering a first threshold value of the RSRQ of CCE degraded to level 4, a second threshold value of the RSRQ degraded to level 2 and a third threshold value of the RSRQ degraded to level 1;
the thresholds of the measurement object triggering CCE upgrade under the a2 event include: triggering a fourth threshold value of CCE upgraded to RSRQ of level 2, a fifth threshold value of RSRQ upgraded to level 4 and a sixth threshold value of RSRQ upgraded to level 8.
Specifically, the CCE aggregation level decreases upon an a1 event trigger, and the thresholds of the measurement objects triggering CCE demotion under an a1 event include: triggering a CCE downgrade to a level 4 RSRQ threshold, a CCE downgrade to a level 2 RSRQ threshold, and a CCE downgrade to a level 1 RSRQ threshold.
The CCE aggregation level increases upon an a2 event trigger, and the thresholds for measurement objects triggering CCE upgrade at an a2 event include: triggering CCE to be upgraded to level 2 RSRQ, level 4 RSRQ and level 8 RSRQ.
An embodiment of the present invention further provides an electronic device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and when the processor executes the computer program, the method shown in fig. 1 is implemented.
Fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
As shown in fig. 6, the electronic device provided by the embodiment of the present invention includes a memory 21, a processor 22, a bus 23, and a computer program stored on the memory 21 and executable on the processor 22. The memory 21 and the processor 22 complete communication with each other through the bus 23.
The processor 22 is used to call the program instructions in the memory 21 to implement the method of fig. 1 when executing the program.
For example, the processor implements the following method when executing the program:
sending a configuration message to user equipment, wherein the configuration message comprises a measurement object, an event triggering CCE grade adjustment and a threshold;
receiving a measurement report message sent by user equipment, wherein the measurement report message comprises event report information and a value of a measurement object;
and adjusting the aggregation level of the CCE according to the event report information and the value of the measurement object.
According to the electronic equipment provided by the embodiment of the invention, the base station configures the event and the threshold for triggering CCE grade adjustment, and the user equipment reports the measurement message according to the configuration of the base station, so that the base station can directly adjust the CCE grade according to the channel quality measured by the terminal, and the CCE is controlled more accurately and simply.
Embodiments of the present invention also provide a non-transitory computer readable storage medium, on which a computer program is stored, and the program, when executed by a processor, implements the steps of fig. 1.
For example, the processor implements the following method when executing the program:
sending a configuration message to user equipment, wherein the configuration message comprises a measurement object, an event triggering CCE grade adjustment and a threshold;
receiving a measurement report message sent by user equipment, wherein the measurement report message comprises event report information and a value of a measurement object;
and adjusting the aggregation level of the CCE according to the event report information and the value of the measurement object.
The non-transitory computer readable storage medium provided by the embodiment of the present invention configures an event and a threshold for triggering CCE level adjustment by a base station, and a user equipment reports a measurement message according to the configuration of the base station, so that the base station can directly adjust CCE levels according to channel quality measured by a terminal, thereby controlling CCE more accurately and simply.
An embodiment of the present invention discloses a computer program product, the computer program product comprising a computer program stored on a non-transitory computer-readable storage medium, the computer program comprising program instructions, which when executed by a computer, enable the computer to perform the methods provided by the above-mentioned method embodiments, for example, including:
sending a configuration message to user equipment, wherein the configuration message comprises a measurement object, an event triggering CCE grade adjustment and a threshold;
receiving a measurement report message sent by user equipment, wherein the measurement report message comprises event report information and a value of a measurement object;
and adjusting the aggregation level of the CCE according to the event report information and the value of the measurement object.
The functional modules in the embodiments of the present invention may be implemented by a hardware processor (hardware processor), and the embodiments of the present invention are not described again.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. A method for adjusting CCE aggregation level is applied to network side equipment, and the method comprises the following steps:
sending a configuration message to user equipment, wherein the configuration message comprises a measurement object, an event triggering CCE grade adjustment and a threshold; the measurement object comprises a reference signal received quality, RSRQ;
receiving a measurement report message sent by user equipment, wherein the measurement report message comprises event report information and a value of a measurement object;
adjusting the aggregation level of the CCE according to the event report information and the value of the measurement object;
the configuration message includes:
an A1 event reporting condition, an A2 event reporting condition, a threshold of a measurement object triggering CCE degradation under an A1 event and a threshold of a measurement object triggering CCE upgrading under an A2 event;
the parameters of the A1 event include an A1 event trigger threshold, a first trigger duration, and a first hysteresis factor; the A1 event reporting condition is that the serving cell signal quality is continuously higher than the sum of the A1 event trigger threshold and the first hysteresis factor within a first trigger duration;
the parameters of the A2 event include an A2 event trigger threshold, a second trigger duration, and a second hysteresis factor; the a2 event reporting condition is that the serving cell signal quality is continuously lower than the difference between the a2 event trigger threshold and the second hysteresis factor within a second trigger duration;
the threshold of the measurement object triggering CCE degradation under the A1 event comprises the following steps: triggering a first threshold value of the RSRQ of CCE degraded to level 4, a second threshold value of the RSRQ degraded to level 2 and a third threshold value of the RSRQ degraded to level 1;
the thresholds of the measurement object triggering CCE upgrade under the a2 event include: triggering a fourth threshold value of CCE upgraded to RSRQ of level 2, a fifth threshold value of RSRQ upgraded to level 4 and a sixth threshold value of RSRQ upgraded to level 8.
2. The method of claim 1, wherein the adjusting the aggregation level of CCEs according to the event reporting information and the value of the measurement object comprises:
when the reporting event is A1, and the value of the measurement object is higher than a first threshold and not higher than a second threshold, degrading the CCE aggregation level to 4;
when the reporting event is A1, and the value of the measurement object is higher than the second threshold and not higher than the third threshold, degrading the CCE aggregation level to 2;
when the reporting event is A1 and the value of the measurement object is higher than a third threshold, degrading the CCE aggregation level to 1;
when the reporting event is A2 and the value of the measurement object is lower than the fourth threshold and not lower than the fifth threshold, upgrading the CCE aggregation level to 2;
when the reporting event is A2, and the value of the measurement object is lower than a fifth threshold and not lower than a sixth threshold, upgrading the CCE aggregation level to 4;
and upgrading the CCE aggregation level to 8 when the reporting event is A2 and the value of the measurement object is lower than a sixth threshold.
3. A method for adjusting CCE aggregation level is applied to user equipment, and the method comprises the following steps:
receiving a configuration message sent by network side equipment, wherein the configuration message comprises a measurement object, an event triggering CCE grade adjustment and a threshold; the measurement object comprises a reference signal received quality, RSRQ;
sending a measurement report message to the network side equipment according to the configuration message, wherein the measurement report message comprises event report information and a value of a measurement object;
the configuration message includes:
an A1 event reporting condition, an A2 event reporting condition, a threshold of a measurement object triggering CCE degradation under an A1 event and a threshold of a measurement object triggering CCE upgrading under an A2 event;
the parameters of the A1 event include an A1 event trigger threshold, a first trigger duration, and a first hysteresis factor; the A1 event reporting condition is that the serving cell signal quality is continuously higher than the sum of the A1 event trigger threshold and the first hysteresis factor within a first trigger duration;
the parameters of the A2 event include an A2 event trigger threshold, a second trigger duration, and a second hysteresis factor; the a2 event reporting condition is that the serving cell signal quality is continuously lower than the difference between the a2 event trigger threshold and the second hysteresis factor within a second trigger duration;
the threshold of the measurement object triggering CCE degradation under the A1 event comprises the following steps: triggering a first threshold value of the RSRQ of CCE degraded to level 4, a second threshold value of the RSRQ degraded to level 2 and a third threshold value of the RSRQ degraded to level 1;
the thresholds of the measurement object triggering CCE upgrade under the a2 event include: triggering a fourth threshold value of CCE upgraded to RSRQ of level 2, a fifth threshold value of RSRQ upgraded to level 4 and a sixth threshold value of RSRQ upgraded to level 8.
4. An apparatus for adjusting CCE aggregation level, the apparatus being located in a network side device, the apparatus comprising:
a first sending unit, configured to send a configuration message to a user equipment, where the configuration message includes a measurement object, an event triggering CCE level adjustment, and a threshold; the measurement object comprises a reference signal received quality, RSRQ;
a first receiving unit, configured to receive a measurement report message sent by a user equipment, where the measurement report message includes event report information and a value of a measurement object;
the adjusting unit is used for adjusting the aggregation level of the CCE according to the event reporting information and the value of the measurement object;
the configuration message includes:
an A1 event reporting condition, an A2 event reporting condition, a threshold of a measurement object triggering CCE degradation under an A1 event and a threshold of a measurement object triggering CCE upgrading under an A2 event;
the parameters of the A1 event include an A1 event trigger threshold, a first trigger duration, and a first hysteresis factor; the A1 event reporting condition is that the serving cell signal quality is continuously higher than the sum of the A1 event trigger threshold and the first hysteresis factor within a first trigger duration;
the parameters of the A2 event include an A2 event trigger threshold, a second trigger duration, and a second hysteresis factor; the a2 event reporting condition is that the serving cell signal quality is continuously lower than the difference between the a2 event trigger threshold and the second hysteresis factor within a second trigger duration;
the threshold of the measurement object triggering CCE degradation under the A1 event comprises the following steps: triggering a first threshold value of the RSRQ of CCE degraded to level 4, a second threshold value of the RSRQ degraded to level 2 and a third threshold value of the RSRQ degraded to level 1;
the thresholds of the measurement object triggering CCE upgrade under the a2 event include: triggering a fourth threshold value of CCE upgraded to RSRQ of level 2, a fifth threshold value of RSRQ upgraded to level 4 and a sixth threshold value of RSRQ upgraded to level 8.
5. The apparatus of claim 4,
the adjusting unit is configured to downgrade the CCE aggregation level to 4 when the reporting event is a1, and the value of the measurement object is higher than the first threshold and not higher than the second threshold;
when the reporting event is A1, and the value of the measurement object is higher than the second threshold and not higher than the third threshold, degrading the CCE aggregation level to 2;
when the reporting event is A1 and the value of the measurement object is higher than a third threshold, degrading the CCE aggregation level to 1;
when the reporting event is A2 and the value of the measurement object is lower than the fourth threshold and not lower than the fifth threshold, upgrading the CCE aggregation level to 2;
when the reporting event is A2, and the value of the measurement object is lower than a fifth threshold and not lower than a sixth threshold, upgrading the CCE aggregation level to 4;
and upgrading the CCE aggregation level to 8 when the reporting event is A2 and the value of the measurement object is lower than a sixth threshold.
6. An apparatus for controlling adjustment of CCE aggregation levels, the apparatus being located at a user equipment, the apparatus comprising:
a second receiving unit, configured to receive a configuration message sent by a network side device, where the configuration message includes a measurement object, an event triggering CCE level adjustment, and a threshold; the measurement object comprises a reference signal received quality, RSRQ;
a second sending unit, configured to send a measurement report message to the network side device according to the configuration message, where the measurement report message includes event report information and a value of a measurement object;
the configuration message includes:
an A1 event reporting condition, an A2 event reporting condition, a threshold of a measurement object triggering CCE degradation under an A1 event and a threshold of a measurement object triggering CCE upgrading under an A2 event;
the parameters of the A1 event include an A1 event trigger threshold, a first trigger duration, and a first hysteresis factor; the A1 event reporting condition is that the serving cell signal quality is continuously higher than the sum of the A1 event trigger threshold and the first hysteresis factor within a first trigger duration;
the parameters of the A2 event include an A2 event trigger threshold, a second trigger duration, and a second hysteresis factor; the a2 event reporting condition is that the serving cell signal quality is continuously lower than the difference between the a2 event trigger threshold and the second hysteresis factor within a second trigger duration;
the threshold of the measurement object triggering CCE degradation under the A1 event comprises the following steps: triggering a first threshold value of the RSRQ of CCE degraded to level 4, a second threshold value of the RSRQ degraded to level 2 and a third threshold value of the RSRQ degraded to level 1;
the thresholds of the measurement object triggering CCE upgrade under the a2 event include: triggering a fourth threshold value of CCE upgraded to RSRQ of level 2, a fifth threshold value of RSRQ upgraded to level 4 and a sixth threshold value of RSRQ upgraded to level 8.
7. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor, when executing the program, implements the steps of the method of adjusting control channel element, CCE, aggregation levels as claimed in any one of claims 1 to 3.
8. A non-transitory computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method for adjusting the CCE aggregation level according to any one of the claims 1 to 3.
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