CN107801238B - Method and device for inter-cell power cooperation in LTE scene - Google Patents
Method and device for inter-cell power cooperation in LTE scene Download PDFInfo
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- CN107801238B CN107801238B CN201610802940.1A CN201610802940A CN107801238B CN 107801238 B CN107801238 B CN 107801238B CN 201610802940 A CN201610802940 A CN 201610802940A CN 107801238 B CN107801238 B CN 107801238B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/28—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission
- H04W52/281—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission taking into account user or data type priority
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/34—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
- H04W52/343—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading taking into account loading or congestion level
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0473—Wireless resource allocation based on the type of the allocated resource the resource being transmission power
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
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Abstract
A method and a device for inter-cell power cooperation in an LTE scene are provided, the method comprises the following steps: determining the priority of each cell according to the user access number or the customized scene of each cell; allocating transmission power for each cell according to a corresponding relation between a preset priority and transmission power allocation; scheduling the transmission power of each cell according to the transmission power allocated to each cell, the apparatus comprising: the base station side power dispatching unit comprises a base station side priority confirming unit, a base station side power distributing unit and a base station side power dispatching unit. The invention distributes the rated transmitting power supported by the RRU single board to each cell according to the corresponding relation between the priority and the transmitting power distribution, and schedules the cells, thereby realizing the full use of the rated transmitting power supported by the RRU single board without waste, realizing the dynamic optimized distribution to each cell, improving the load imbalance among the cells and achieving the effect of improving the user experience.
Description
Technical Field
The invention relates to the technical field of wireless communication, in particular to a method and a device for power cooperation between cells in an LTE scene.
Background
LTE (Long Term Evolution) is a Long Term Evolution of The UMTS (Universal Mobile Telecommunications System) technical standard established by The 3GPP (The 3rd Generation Partnership Project) organization. In an LTE scenario, the maximum rated transmission power supported by a RRU (Radio Remote Unit) board is fixed and is determined by the model. The base station side can inquire and know the rated transmitting power supported by the RRU according to the models of the RRUs with different styles and configure the initial transmitting power of a cell through an OMMB (operation maintenance center).
In an actual networking process, when most cells configure the transmission power, the maximum rated power supported by the RRU board is generally not configured, and the remaining power of the RRU board is generally wasted. Meanwhile, when the same RRU is configured with a plurality of cells, the number of users accessed in all the cells is not the same, the load imbalance among the cells caused by the difference of the number of users among the cells always exists, the data interaction in the cells with large load caused by excessive user access is very frequent, the throughput of the user is reduced, and finally the experience of the user is poor. In addition, some special scenarios (such as sports meetings, concerts, etc.) may require that partial coverage cells support huge traffic bearers, and these cells must perform data scheduling preferentially.
It is very necessary to study how to optimize the power among the cooperative cells more so that dynamic balance among the cells is achieved.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a method and a device for inter-cell power cooperation under an LTE scene, which can enable transmission power cooperation processing among cells in the same base station.
The method for inter-cell power cooperation in an LTE scene provided by the embodiment of the invention comprises the following steps:
determining the priority of each cell according to the user access number or the customized scene of each cell, wherein the priority comprises a first priority, a second priority and a third priority;
allocating transmission power for each cell according to a preset corresponding relation between priority and transmission power allocation, wherein the transmission power of the first priority is the sum of the transmission power initially configured for the cell of the first priority and average residual power, and the average residual power is a value obtained by subtracting the transmission power allocated for the cell of the second priority and the cell of the third priority and the transmission power initially configured for the cell of the first priority from the rated power of the RRU single board and then averaging according to the number of the cells of the first priority;
and scheduling the transmission power of each cell according to the transmission power distributed by each cell.
The method, wherein the preset correspondence between the priority and the transmission power allocation includes:
the cell is a third priority cell, and the corresponding allocated transmission power is the power of the cell after the initial configuration power of the cell is reduced by the power suppressing configuration parameter of the cell;
the cell is a second priority cell, and the corresponding allocated transmission power is the transmission power initially configured by the cell;
the cell is a first priority cell, the corresponding allocated transmission power is the sum of the transmission power initially configured by the cell and the average residual power, and the average residual power is the value obtained by subtracting the transmission power allocated by the second priority cell and the third priority cell and the transmission power initially configured by the first priority cell from the rated power of the RRU single board and then averaging the values according to the number of the first priority cells.
The method, wherein the step of determining the priority of each cell comprises:
when the user access number of the cell is higher than a first threshold value, the cell is determined to be a first priority cell;
when the user access number of the cell is between a first threshold and a second threshold, the cell is determined to be a second priority cell;
when the user access number of the cell is lower than a second threshold value, the cell is determined as a third priority cell; wherein the first threshold is greater than the second threshold.
In the method, when the cell is configured on the OMMB, the cell is directly determined as one of the first priority cell, the second priority cell and the third priority cell according to the customized scene of the cell.
The method, wherein the step of scheduling the transmission power of each cell according to the transmission power allocated to each cell includes:
judging whether the current transmitting power of each cell is equal to the transmitting power distributed by each cell or not;
and when the current transmitting power of the cell is not equal to the transmitting power distributed by the cell, scheduling the transmitting power of the cell according to the transmitting power distributed by the cell.
The method, wherein the scheduling of the transmit power for each cell includes:
adjusting the reference power of the cell according to the allocated transmission power;
adjusting the radiation angle of the cell according to the distributed transmission power;
and adjusting the received power of each user in the cell according to the distributed transmitting power.
The embodiment of the invention also provides a device for power cooperation between cells in an LTE scene, which is suitable for the cells supporting power cooperation, and comprises a base station side priority confirming unit, a base station side power distributing unit and a base station side power scheduling unit, wherein,
the base station side priority confirming unit is used for confirming the priority of each cell and sending the priority information of each cell to the base station side power distribution unit, wherein the priority comprises a first priority, a second priority and a third priority;
the base station side power allocation unit is configured to allocate transmission power to each cell according to a preset correspondence between priorities and transmission power allocations, where the transmission power of the first priority is a sum of transmission power initially configured for the first priority cell and an average remaining power, and the average remaining power is a value obtained by subtracting the transmission power allocated for the second priority cell and the third priority cell and the transmission power initially configured for the first priority cell from a rated power of an RRU single board and averaging the transmission power according to the number of the first priority cells;
and the base station side power scheduling unit schedules the transmission power of each cell according to the transmission power distributed by each cell, so that users in each cell can perceive the change of the transmission power.
The apparatus above, wherein the preset correspondence between the priority and the transmission power allocation includes:
the cell is a third priority cell, and the corresponding allocated transmission power is the power obtained by reducing the initial configuration power of the cell by the power suppressing configuration parameter of the cell;
the cell is a second priority cell, and the corresponding allocated transmission power is the transmission power initially configured by the cell;
the cell is a first priority cell, the corresponding allocated transmission power is the sum of the transmission power initially configured by the cell and the average residual power, and the average residual power is the value obtained by subtracting the transmission power allocated by the second priority cell and the third priority cell and the transmission power initially configured by the first priority cell from the rated power of the RRU single board and then averaging the values according to the number of the first priority cells.
In the above apparatus, the base station side priority determining unit includes a user number metering unit, where the user number metering unit is configured to count the user access number of each cell, and when the user access number of the cell is higher than a first value, the cell is determined as a first priority cell; and when the user access number of the cell is lower than the second threshold, the cell is determined as a third priority cell, wherein the first threshold is larger than the second threshold.
In the above apparatus, when configuring a cell on the OMMB, the base station side priority determination unit directly determines the cell as one of the first priority cell, the second priority cell, and the third priority cell according to a customized scenario of the cell.
The device further includes a transmission power query unit and a transmission power scheduling control unit, where the transmission power query unit is configured to query a current transmission power of each cell and send the transmission power to the transmission power scheduling control unit, and when the transmission power is different from the transmission power allocated to the cell corresponding to the transmission power, the transmission power scheduling control unit controls the base station side power scheduling unit to perform scheduling of the transmission power for the corresponding cell.
The apparatus above, wherein the scheduling manner of the base station side power scheduling unit includes:
adjusting the reference power of the cell according to the allocated transmission power;
adjusting the radiation angle of the cell according to the distributed transmission power;
and adjusting the received power of each user in the cell according to the distributed transmitting power.
The invention realizes the full use of the rated transmitting power supported by the RRU single board without waste by determining the priority of each cell currently working in the base station in real time, distributing the rated transmitting power supported by the RRU single board to each cell according to the corresponding relation of the priority and the transmitting power distribution and scheduling the transmitting power distributed by each cell, and can realize the dynamic optimized distribution to each cell, improve the load imbalance among the cells and achieve the effect of improving the user experience.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a flowchart of an inter-cell power coordination method in an LTE scenario according to an embodiment of the present invention;
fig. 2 is a flowchart of an inter-cell power coordination method in an LTE scenario according to an embodiment of the present invention;
fig. 3 is a flowchart of an inter-cell power coordination method in an LTE scenario according to a second embodiment of the present invention;
fig. 4 is a structural frame of an inter-cell power coordination apparatus in an LTE scenario according to an embodiment of the present invention;
fig. 5 is a structural frame of an inter-cell power coordination apparatus in an LTE scenario according to another embodiment of the present invention;
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
An embodiment of the present invention provides a method for inter-cell power coordination in an LTE scenario, please refer to fig. 1, which is a flowchart of the inter-cell power coordination method in the LTE scenario according to the embodiment of the present invention, as shown in the figure, the method includes steps S101 to S103.
Step S101, determining the priority of each cell according to the user access number or the customized scene of each cell. The priority includes one of a first priority, a second priority, and a third priority. The third priority is the lowest priority, the first priority is the highest priority, and the second priority is the normal priority. The transmission power of the normal priority cell is the initially configured transmission power. The priority of a cell may be determined according to one of the following two methods.
Firstly, the base station side adaptively confirms the priority of the cell according to the number of users currently accessed by the cell, namely,
when the user access number of a cell is higher than a first threshold value, the cell is determined as a first priority cell;
when the user access number of the cell is between a first threshold and a second threshold, the cell is determined to be a second priority cell;
and when the user access number of the cell is lower than a second threshold value, the cell is determined as a third priority cell.
The first threshold value set by each cell is greater than the second threshold value, and the first threshold value or the second threshold value set by each cell may be the same or different according to the actual situation.
Secondly, when configuring the cell on the OMMB, the priority of the cell may be directly determined as one of the first priority, the second priority, and the third priority according to the customized scene of the cell. The customized scenes of the cell include special scenes such as a sports meeting, a concert, and the like, and general scenes, the cell priority for the special scenes is determined as a first priority, and the cell priority for the general scenes is determined as a second priority or a third priority. Cells that are not prioritized when configuring cells on OMMB may be prioritized according to a first method.
And step S102, distributing the transmitting power for each cell according to the corresponding relation between the preset priority and the transmitting power distribution. The corresponding relationship includes:
the corresponding distributed transmitting power of the third priority cell is the power of the cell after the initial configuration power of the cell is reduced by the power suppressing configuration parameter of the cell;
the corresponding distributed transmitting power of the second priority cell is the transmitting power initially configured by the cell;
and the corresponding allocated transmission power of the first priority cell is the sum of the initial configuration transmission power of the cell and the average residual power, and the average residual power is the value obtained by subtracting the transmission power allocated by the second priority cell and the third priority cell and the initial configuration transmission power of the first priority cell from the rated power of the RRU single board and then averaging according to the number of the first priority cells.
Step S103, according to the transmitting power distributed by each cell, scheduling the transmitting power of each cell. So that users in the cell perceive the change in transmit power and thus have a sense in data throughput. The transmission Power of each cell can be scheduled from three dimensions, namely, Reference Signal Receiving Power (Reference Signal Receiving Power) for enhancing cell-level Reference Power, enhanced cell radiation beam intensity and UE user-level Power, so as to enhance RSRP received by a user and increase SINR (Signal to Interference plus Noise Ratio), thereby improving data throughput. The scheduling mode of the three dimensions is as follows:
adjusting the reference power of the cell according to the allocated transmission power;
adjusting the radiation angle of the cell according to the distributed transmission power;
and adjusting the received power of each user in the cell according to the allocated transmitting power.
In this embodiment, the priority of each currently operating cell in the base station is determined in real time, the rated transmission power supported by the RRU board is allocated to each cell according to the corresponding relationship between the priority and the transmission power allocation, and the transmission power allocated to each cell is scheduled, so that the rated transmission power supported by the RRU board is used up without waste, and dynamically optimized allocation to each cell can be achieved, thereby improving load imbalance among cells and achieving the effect of improving user experience.
In another embodiment of the present invention, step S104 includes: judging whether the current transmitting power of each cell is equal to the transmitting power distributed by each cell; and when the current transmitting power of the cell is not equal to the transmitting power distributed by the cell, scheduling the transmitting power of the cell according to the transmitting power distributed by the cell.
These and other aspects of embodiments of the invention will be apparent with reference to the following description and attached drawings. In the description and drawings, particular embodiments of the invention have been disclosed in detail as being indicative of some of the ways in which the principles of the embodiments of the invention may be practiced, but it is understood that the scope of the embodiments of the invention is not limited correspondingly. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.
Example 1
Fig. 2 is a flowchart of an inter-cell power cooperation method in an LTE scenario according to an embodiment of the present invention. As shown in fig. 2, taking two cells as an example, the method includes the following steps.
Step 201, two cells Cell1 and Cell2 are established on an RRU single board. The rated transmission power of the RRU board is P0, and the initial transmission powers of Cell1 and Cell2 configured by the OMMB are P1 and P2, respectively.
In step 202, the first threshold and the second threshold of the user access numbers of the Cell1 and the Cell2 are set as T1, T2, T1 'and T2', respectively, wherein T1 is greater than T2, and T1 'is greater than T2'. When the user access number of the cell is higher than a first threshold value, the cell is determined to be a first priority cell; when the user access number of the cell is between a first threshold and a second threshold, the cell is determined to be a second priority cell; and when the user access number of the cell is lower than a second threshold value, the priority of the cell is determined as a third priority cell.
In step 203, accessing users in the Cell1 and the Cell2, so that the number of users in the Cell1 is higher than that in the T1, and the number of users in the Cell2 is lower than that in the T2', and confirming that the priorities of the Cell1 and the Cell2 are the first priority and the third priority, respectively.
Step 204, allocating and adjusting the transmission power of the Cell1 and the Cell2 according to the corresponding relationship between the preset priority and the transmission power allocation. The transmission power allocated by Cell2 is the real power P2 'obtained by reducing the initial configuration transmission power of the Cell by the power suppression configuration parameter of the Cell on the OMMB, for example, when the suppression configuration parameter of the Cell is set to 3Db, P2' is equal to half of P2. The transmission power allocated by the Cell1 is the sum of the transmission power initially configured by the Cell1 and the average residual power, where the average residual power is a value obtained by averaging the rated power of the RRU single board minus the transmission power allocated by the Cell2 and the transmission power initially configured by the Cell1 according to the number of the first priority cells, and specifically, the calculation formula of the transmission power allocated by the Cell1 is as follows: p1+ (P0-P2' -P1)/1, where the denominator 1 represents the number of first priority cells, and in this embodiment, the number of first priority cells is only 1.
If the number of users accessed by the Cell1 is adjusted to be between T1 and T2 and the number of users of the Cell2 is adjusted to be between T1 'and T2' after the transmission power of the Cell1 and the Cell2 is adjusted, the transmission power of the Cell1 and the Cell2 is recovered to be the transmission power initially configured on the OMMB.
In this embodiment, the priority of the cell is determined according to the number of users in the cell, and the transmission power of each cell is reallocated according to the correspondence between the priority and the transmission power allocation, so as to dynamically optimize the allocation of the transmission power to each cell.
Example 2
Fig. 3 is a flowchart of a power cooperation method between cells in an LTE scenario according to a second embodiment of the present invention. Taking two cells as an example, as shown in fig. 3, the method includes the following steps:
step 301, establishing two cells Cell1 and Cell2 on an RRU single board. The rated transmission power of the RRU board is P0, and the transmission powers initially configured for Cell1 and Cell2 on the OMMB are P1 and P2, respectively.
Step 302, when configuring cells on the OMMB, directly determining Cell1 and Cell2 as a first priority Cell and a third priority Cell, respectively, according to the customized scenario of each Cell.
Step 303, allocating and adjusting the transmission power of the Cell1 and the Cell2 according to the preset corresponding relationship between the priority and the transmission power allocation. The transmission power allocated by Cell2 is the real power P2 'obtained by reducing the initial configuration transmission power of the Cell by the power pressing configuration parameter of the Cell on the OMMB, for example, when the power pressing configuration parameter is equal to 3Db, P2' is equal to half of P2; the transmission power allocated by the Cell1 is the sum of the transmission power initially configured by the Cell1 and the average residual power, where the average residual power is a value obtained by averaging the rated power of the RRU single board minus the transmission power allocated by the Cell2 and the transmission power initially configured by the Cell1 according to the number of the first priority cells, and specifically, the calculation formula of the transmission power allocated by the Cell1 is as follows: p1+ (P0-P2' -P1)/1, where the denominator 1 represents the number of first priority cells, and in this embodiment, the number of first priority cells is only 1.
In this embodiment, special scenes such as sports meetings, concerts and the like are customized for some cells, when the cells are configured on the OMMB, the first priority is directly determined for the cells, the priorities of other cells are determined as the second priority or the third priority, and the transmitting power of the cells is allocated according to the preset corresponding relationship between the priorities and the transmitting power allocation.
It should be noted that, when configuring a cell on the OMMB and determining the priority of the cell, it is not necessary to determine the priority of all the cells, and when configuring a cell on the OMMB, a cell with no priority is determined, and the priority of the cell is determined by the number of users in the cell.
Corresponding to the method for power cooperation between cells in an LTE scenario, the present embodiment provides a device for power cooperation between cells in an LTE scenario.
Referring to fig. 4, a structural framework of an inter-cell power coordination apparatus in an LTE scenario is provided in an embodiment of the present invention, where the apparatus is adapted to a cell supporting power coordination, and as shown in the figure, the apparatus includes: base station side priority confirming unit 1, base station side power allocating unit 2 and base station side power scheduling unit 3.
And a base station side priority confirming unit 1, configured to confirm the priority of each cell, and send the priority information of each cell to the base station side power allocating unit 2. The base station side priority confirming unit 1 comprises a user number counting unit for counting the number of users in the cell, and when the number of user accesses in the cell is higher than a first threshold value, the cell is determined to be a first priority cell; when the user access number of the cell is between a first threshold and a second threshold, the cell is determined to be a second priority cell; and when the user access number of the cell is lower than a second threshold value, the priority of the cell is determined as a third priority cell.
The first threshold value set by each cell is larger than the second threshold value. The first threshold or the second threshold set for each cell may be the same or different according to the actual conditions of the respective cells.
Except that the priority of the cell is adaptively confirmed according to the number of users accessed to the cell, when the cell is configured on the OMMB, the priority of the cell is directly confirmed to be one of a first priority, a second priority and a third priority according to a customized scene base station side priority confirmation unit 1 of the cell.
And the base station side power distribution unit 2 is used for distributing the transmitting power for each cell according to the corresponding relation between the preset priority and the transmitting power distribution. The corresponding relationship includes:
the corresponding distributed transmitting power of the third priority cell is the power of the cell after the initial configuration power of the cell is reduced by the power suppressing configuration parameter of the cell;
the corresponding distributed transmitting power of the second priority cell is the transmitting power initially configured by the cell;
and the corresponding allocated transmission power of the first priority cell is the sum of the initial configuration transmission power of the cell and the average residual power, and the average residual power is the value obtained by subtracting the transmission power allocated by the second priority cell and the third priority cell and the initial configuration transmission power of the first priority cell from the rated power of the RRU single board and then averaging according to the number of the first priority cells.
And the base station side power scheduling unit 3 schedules the transmission power of each cell according to the transmission power distributed by each cell, so that users in each cell can sense the change of the transmission power.
The scheduling method of the base station side power scheduling unit 3 includes: adjusting reference power of a cell; adjusting the radiation angle of the cell; and adjusting the received power of each user in the cell.
The embodiment of the invention realizes the full utilization of the rated transmitting power supported by the RRU single board without waste by confirming the priority of each cell currently working in the base station in real time, distributing the rated transmitting power supported by the RRU single board to each cell according to the corresponding relation of the priority and the transmitting power distribution and finally scheduling the transmitting power distributed by each cell, and can realize the dynamic optimized distribution to each cell to achieve the effect of improving the user experience.
As shown in fig. 5, in another embodiment of the present invention, the apparatus further includes a transmission power querying unit 4 and a transmission power scheduling control unit 5. The transmission power query unit 4 is configured to query a current transmission power of each cell and send a query result to the transmission power scheduling control unit, when the queried transmission power is different from a transmission power allocated to a cell corresponding to the queried transmission power, the transmission power scheduling control unit 5 sends a control instruction to the base station side power scheduling unit 4, performs scheduling of the transmission power of the corresponding cell, and when the queried transmission power is different from the transmission power allocated to the cell corresponding to the queried transmission power, the control instruction is not sent.
In another embodiment of the present invention, the apparatus further includes a power cooperation control switch corresponding to each cell, and when the switch is turned on, the cell supports power cooperation, that is, the cell supports the base station to increase or decrease the real transmission power of the cell at an appropriate time based on the initially configured cell transmission power; when the switch is closed, it indicates that the cell does not participate in the scheduling of the transmission power.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (12)
1. A method for inter-cell power cooperation in an LTE scenario, the method comprising:
determining the priority of each cell according to the user access number or the customized scene of each cell, wherein the priority comprises a first priority, a second priority and a third priority;
allocating transmission power for each cell according to a preset corresponding relation between priority and transmission power allocation, wherein the transmission power of the first priority is the sum of the transmission power initially configured for the cell of the first priority and average residual power, and the average residual power is a value obtained by subtracting the transmission power allocated for the cell of the second priority and the cell of the third priority and the transmission power initially configured for the cell of the first priority from the rated power of the RRU single board and then averaging according to the number of the cells of the first priority;
and scheduling the transmission power of each cell according to the transmission power distributed by each cell.
2. The method of claim 1, wherein the pre-set priority to transmit power allocation correspondence comprises:
the cell is a third priority cell, and the corresponding allocated transmission power is the power of the cell after the initial configuration power of the cell is reduced by the power suppressing configuration parameter of the cell;
the cell is a second priority cell, and the corresponding allocated transmission power is the transmission power initially configured by the cell;
the cell is a first priority cell, the corresponding allocated transmission power is the sum of the transmission power initially configured by the cell and the average residual power, and the average residual power is the value obtained by subtracting the transmission power allocated by the second priority cell and the third priority cell and the transmission power initially configured by the first priority cell from the rated power of the RRU single board and then averaging the values according to the number of the first priority cells.
3. The method of claim 2, wherein the step of determining the priority of each cell comprises:
when the user access number of the cell is higher than a first threshold value, the cell is determined to be a first priority cell;
when the user access number of the cell is between a first threshold and a second threshold, the cell is determined to be a second priority cell;
when the user access number of the cell is lower than a second threshold value, the cell is determined as a third priority cell; wherein the first threshold is greater than the second threshold.
4. The method of claim 2, wherein when configuring a cell on OMMB, the cell is directly determined to be one of a first priority cell, a second priority cell, and a third priority cell according to a customized scenario of the cell.
5. The method of claim 1, wherein the step of scheduling the transmit power of each cell according to the transmit power allocated to each cell comprises:
judging whether the current transmitting power of each cell is equal to the transmitting power distributed by each cell or not;
and when the current transmitting power of the cell is not equal to the transmitting power distributed by the cell, scheduling the transmitting power of the cell according to the transmitting power distributed by the cell.
6. The method of claim 1, wherein scheduling transmit power for each of the cells comprises:
adjusting the reference power of the cell according to the allocated transmission power;
adjusting the radiation angle of the cell according to the distributed transmission power;
and adjusting the received power of each user in the cell according to the distributed transmitting power.
7. An inter-cell power cooperation apparatus in an LTE scenario, adapted to a cell supporting power cooperation, the apparatus comprising a base station side priority confirmation unit, a base station side power allocation unit, and a base station side power scheduling unit, wherein,
the base station side priority confirming unit is used for confirming the priority of each cell and sending the priority information of each cell to the base station side power distribution unit, wherein the priority comprises a first priority, a second priority and a third priority;
the base station side power allocation unit is configured to allocate transmission power to each cell according to a preset correspondence between priorities and transmission power allocations, where the transmission power of the first priority is a sum of transmission power initially configured for the first priority cell and an average remaining power, and the average remaining power is a value obtained by subtracting the transmission power allocated for the second priority cell and the third priority cell and the transmission power initially configured for the first priority cell from a rated power of an RRU single board and averaging the transmission power according to the number of the first priority cells;
and the base station side power scheduling unit schedules the transmission power of each cell according to the transmission power distributed by each cell, so that users in each cell can sense the change of the transmission power.
8. The apparatus of claim 7, wherein the predetermined priority and transmission power allocation correspondence comprises:
the cell is a third priority cell, and the corresponding allocated transmission power is the power of the cell after the initial configuration power of the cell is reduced by the power suppressing configuration parameter of the cell;
the cell is a second priority cell, and the corresponding allocated transmission power is the transmission power initially configured by the cell;
the cell is a first priority cell, the corresponding allocated transmission power is the sum of the transmission power initially configured by the cell and the average residual power, and the average residual power is the value obtained by subtracting the transmission power allocated by the second priority cell and the third priority cell and the transmission power initially configured by the first priority cell from the rated power of the RRU single board and then averaging the values according to the number of the first priority cells.
9. The apparatus of claim 8, wherein the base station side priority confirmation unit comprises a user number metering unit, the user number metering unit is configured to count the number of user accesses to each cell, and when the number of user accesses to the cell is higher than a first value, the cell is confirmed to be a first priority cell; and when the user access number of the cell is lower than the second threshold, the cell is determined as a third priority cell, wherein the first threshold is larger than the second threshold.
10. The apparatus of claim 8, wherein the base station side priority confirmation unit directly determines the cell as one of a first priority cell, a second priority cell, and a third priority cell according to a customized scenario of the cell when the cell is configured on the OMMB.
11. The apparatus of claim 7, further comprising a transmission power querying unit and a transmission power scheduling control unit, wherein the transmission power querying unit is configured to query a current transmission power of each cell and send the transmission power to the transmission power scheduling control unit, and when the transmission power is different from the transmission power allocated to the corresponding cell, the transmission power scheduling control unit controls the base station-side power scheduling unit to perform scheduling of the transmission power of the corresponding cell.
12. The apparatus of claim 7, wherein the base station side power scheduling unit is scheduled in a manner comprising:
adjusting the reference power of the cell according to the allocated transmission power;
adjusting the radiation angle of the cell according to the distributed transmission power;
and adjusting the received power of each user in the cell according to the distributed transmitting power.
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| CN113015232A (en) * | 2019-12-20 | 2021-06-22 | 中国电信股份有限公司 | Active small base station, radio remote unit, main board thereof and transmission power adjusting method |
| CN111970752B (en) * | 2020-08-12 | 2023-04-28 | 中国联合网络通信集团有限公司 | Energy-saving control method and device |
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