CN107438267A - A kind of acquisition methods and system of radio resource state information - Google Patents
A kind of acquisition methods and system of radio resource state information Download PDFInfo
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- CN107438267A CN107438267A CN201610355684.6A CN201610355684A CN107438267A CN 107438267 A CN107438267 A CN 107438267A CN 201610355684 A CN201610355684 A CN 201610355684A CN 107438267 A CN107438267 A CN 107438267A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/08—Load balancing or load distribution
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/0268—Traffic management, e.g. flow control or congestion control using specific QoS parameters for wireless networks, e.g. QoS class identifier [QCI] or guaranteed bit rate [GBR]
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Abstract
The invention discloses a kind of acquisition methods and system of radio resource state information, wherein method includes：The Radio Resource load status information for the abutting subdistrict that current base station is sent by the X2 interface in Long Term Evolution LTE system, acquisition target BS, the abutting subdistrict are adjacent with the cell of the current base station；The current base station determines load contribution degree of the non-ensured bit rate NGBR business to corresponding abutting subdistrict from the Radio Resource load status information.The present invention solves the problems, such as the abutting subdistrict Radio Resource load evaluation inaccuracy of interaction between base station.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and a system for acquiring radio resource status information.
Background
In a Long Term Evolution (LTE) system, load balancing is an important function of improving the resource utilization rate of the entire system and ensuring the operation stability of the system, and the current base station can acquire the load state information of all adjacent cells.
The third generation partnership Project (3rd generation partnership Project, 3GPP) standard specifies that load status information of neighboring cells between respective base stations is interacted through a resource status reporting procedure of an X2 interface if the neighboring cells belong to other base stations. The resource status report includes information such as hardware load, transmission load, and radio resource load status, where the radio resource load status information includes a Physical Resource Block (PRB) usage Rate of a Guaranteed Bit Rate (GBR) service, a PRB usage Rate of a Non-Guaranteed Bit Rate (NGBR) service, and a total PRB usage Rate of an uplink and a downlink.
However, only the six pieces of PRB usage information cannot completely reflect the load status of radio resources of a cell, because the NGBR service belongs to an elastic service, that is, the empty PRB resources originally used for transmitting such a service may be preempted by other high-priority services through a scheduling policy. Therefore, the PRB utilization rate of the uplink and downlink NGBR services in the resource state report of the X2 interface at present cannot reflect the load actually brought by the NGBR services to the system, and if the load of the adjacent cell is estimated based on the PRB utilization rate, the load balance error is caused, and the overall performance of the system is reduced.
Disclosure of Invention
In view of the above, an objective of the present invention is to provide a method and a system for acquiring radio resource status information, so as to solve the problem that the evaluation of radio resource load of neighboring cells interacted between base stations is not accurate.
In order to achieve the purpose, the invention adopts the following technical scheme:
in one aspect, an embodiment of the present invention provides a method for acquiring radio resource status information, including:
a current base station acquires wireless resource load state information of an adjacent cell sent by a target base station through an X2 interface in a Long Term Evolution (LTE) system, wherein the adjacent cell is adjacent to a cell of the current base station;
and the current base station determines the load contribution degree of the non-guaranteed bit rate NGBR service to the corresponding adjacent cell from the wireless resource load state information.
On the other hand, the embodiment of the invention provides a system for acquiring wireless resource state information, which comprises a current base station and a target base station;
the target base station is configured to send radio resource load status information of an adjacent cell to the current base station, the adjacent cell being adjacent to a cell of the current base station,
the current base station is used for acquiring the wireless resource load state information through an X2 interface in a Long Term Evolution (LTE) system; and determining the load contribution degree of the non-guaranteed bit rate NGBR service to the corresponding adjacent cell from the wireless resource load state information.
The invention has the beneficial effects that: the method and the system for acquiring the wireless resource state information provided by the invention aim at the adjacent cells interacted between the base stations, the current base station acquires the wireless resource load state information of the adjacent cells sent by the target base station through an X2 interface in an LTE system, and determines the load contribution degree of an NGBR service to the corresponding adjacent cells from the wireless resource load state information, thereby distinguishing a part with large contribution degree to the system load in a PRB resource of the NGBR service and a part which can be preempted by a high-priority service, further realizing the accurate evaluation of the wireless resource load of the adjacent cells, and reducing the risk of the overall performance reduction of the system caused by load balance errors.
Drawings
The above and other features and advantages of the present invention will become more apparent to those of ordinary skill in the art by describing in detail exemplary embodiments thereof with reference to the attached drawings, in which:
fig. 1 is a flowchart illustrating a method for acquiring radio resource status information according to an embodiment of the present invention;
fig. 2 is a resource status report flow carrying PRB resources occupied by NGBR service scheduling priority bit rate according to an embodiment of the present invention;
fig. 3 is a resource status report flow that carries the minimum PRB usage rate that must be occupied by NGBR service according to an embodiment of the present invention;
fig. 4 is a resource status report flow of a cell carrying an NGBR service true contribution to a load according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a system for acquiring radio resource status information according to a second embodiment of the present invention.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Example one
Fig. 1 is a flowchart illustrating a method for acquiring radio resource status information according to an embodiment of the present invention. The method is suitable for the condition of acquiring the wireless resource state information of the adjacent cells between the base stations, and can be executed by the current base station and the target base station jointly. As shown in fig. 1, the method includes:
step 101, the current base station acquires the radio resource load state information of the adjacent cell sent by the target base station through an X2 interface in the LTE system.
The current base station may be a base station which is separately configured to acquire radio resource load state information of an adjacent cell sent by a target base station, or may be any target base station, and the target base station includes at least one base station; the adjacent cell is adjacent to the cell of the current base station but does not belong to the current base station; the wireless resource load state information comprises adjacent cell uplink and downlink GBR service PRB utilization rate, uplink and downlink NGBR service PRB utilization rate and uplink and downlink total PRB utilization rate.
The present embodiment exchanges radio resource load status information of neighboring cells between each base station through a resource status reporting process of an X2 interface.
Illustratively, this step may include:
A. the current base station sends a resource status request message to the target base station through an X2 interface in the LTE system.
B. And the target base station responds to the resource state request message and sends the counted wireless resource load state information of the adjacent cell to the current base station through the resource state updating message.
In order to prevent the NGBR service from being starved, the system will ensure that PRB resources required for scheduling the priority rate for the service, that is, occupied resources of the NGBR service can be preempted, but at least the PBR rate should be ensured.
Therefore, the target base station in this embodiment needs to count not only the PRB usage rate of the uplink and downlink GBR services and the total PRB usage rate of the uplink and downlink of the managed adjacent cell, but also the PRB resources occupied by the scheduling priority bit rate of the uplink and downlink NGBR services in the adjacent cell, or the minimum PRB usage rate that needs to be occupied by the uplink and downlink NGBR services, or the cell of the real contribution degree of the uplink and downlink NGBR services to the load.
C. The current base station receives the resource status update message through the X2 interface to acquire the wireless resource load status information of the adjacent cell.
And 102, determining the load contribution degree of the NGBR service to the corresponding adjacent cell from the wireless resource load state information by the current base station.
For the NGBR Service, a large part of the actually occupied PRB resources can be occupied by the high-priority Service at any time, and compared with the high-priority Service, the resource occupied by the Service has a small contribution density to the overall Quality of Service (QoS), that is, the contribution of the non-occupied resources to the load of the cell can be ignored. Therefore, by determining the load contribution degree of the NGBR service to the corresponding adjacent cell, it can be distinguished that the PRB resources are occupied by the high-priority service.
Based on step 101, in this step, the current base station can determine physical resource block PRB resources occupied by uplink and downlink NGBR service scheduling priority bit rates in each neighboring cell from the wireless resource load state information; or determining that the minimum PRB usage rate which must be occupied by the uplink and downlink NGBR services in each adjacent cell is determined, wherein the minimum PRB usage rate which must be occupied by the uplink and downlink NGBR services represents the percentage of PRB resources occupied by the scheduling priority bit rate of all the uplink and downlink NGBR services in the adjacent cell to the total PRB resources of the uplink and downlink of the adjacent cell; or, determining the cell of the true contribution degree of the uplink and downlink NGBR service to the load in each adjacent cell.
The method for acquiring radio resource state information provided in the embodiment of the present invention is directed to an adjacent cell interacted between base stations, where a current base station acquires radio resource load state information of an adjacent cell sent by a target base station through an X2 interface in an LTE system, and determines a load contribution degree of an NGBR service to a corresponding adjacent cell from the radio resource load state information, so as to distinguish a portion of a PRB resource of the NGBR service, which has a large contribution degree to a system load, from a portion of the PRB resource, which can be preempted by a high-priority service, thereby implementing accurate evaluation of radio resource loads of the adjacent cell, and reducing a risk of system overall performance degradation caused by a load balancing error.
Further, after the target base station responds to the resource state request message, the wireless resource load state information of the adjacent cell is periodically counted, and the counting result is sent to the current base station through the resource state updating message.
Further, after determining the load contribution degree of the NGBR service to the corresponding neighboring cell, the method further includes:
and the current base station performs load balancing calculation on the adjacent cells according to the load contribution degree of the NGBR service pair to the corresponding adjacent cells.
In this embodiment, load balancing calculation may be performed on the neighboring cells according to the load contribution information of the three neighboring cells in the above scheme.
Illustratively, as shown in fig. 2, a base station a (current base station) initiates an X2 interface Resource Status Reporting (Resource Status Reporting) procedure to a base station B (target base station). Specifically, the base station A sends a Resource state Request (Resource state Request) message to the base station B, after receiving the Resource state Request message, the base station B returns a Resource state Response (Resource state Response) message to inform the base station A that wireless Resource load state information can be sent for the base station A, and sends PRB resources occupied by uplink and downlink NGBR service scheduling priority rates in an adjacent cell to the base station A through a wireless state Update (Resource Status Update) message; in the load balance calculation, the base station A uses PRB utilization rate of uplink and downlink GBR service, total PRB utilization rate of the uplink and the downlink and PRB resources occupied by scheduling priority bit rate of uplink and downlink NGBR service to respectively calculate wireless resource load of adjacent cells (belonging to the base station B).
As shown in fig. 3, base station a (current base station) initiates an X2 interface resource status reporting procedure to base station B (target base station). Specifically, a base station A sends a resource state request message to a base station B, the base station B returns a resource state response message after receiving the resource state request message to inform the base station A of sending wireless resource load state information for the base station A, and sends PRB usage rate which is occupied by uplink and downlink NGBR services in an adjacent cell to the base station A at minimum through a wireless state update message; in the load balance calculation, the base station A respectively calculates the wireless resource load of the adjacent cell (belonging to the base station B) by using the PRB utilization rate of the uplink and downlink GBR service, the total PRB utilization rate of the uplink and downlink and the minimum PRB utilization rate occupied by the uplink and downlink NGBR service.
As shown in fig. 4, base station a (current base station) initiates an X2 interface resource status reporting procedure to base station B (target base station). Specifically, a base station A sends a resource state request message to a base station B, the base station B returns a resource state response message after receiving the resource state request message to inform the base station A that wireless resource load state information can be sent to the base station B, and sends cells of actual load contribution degrees of uplink and downlink NGBR services in adjacent cells to the base station A through a wireless state update message; in the load balance calculation, the base station A uses the PRB utilization rate of the uplink and downlink GBR service, the total PRB utilization rate of the uplink and downlink and the cell of the real contribution degree of the uplink and downlink NGBR service to the load to respectively calculate the wireless resource load of the adjacent cell (belonging to the base station B).
After the load balancing, the base station B periodically counts the radio resource load status information of the neighboring cell to continuously perform the load balancing operation.
Example two
Fig. 5 is a schematic structural diagram of a system for acquiring radio resource status information according to a second embodiment of the present invention. As shown in fig. 5, the system includes a current base station 10 and a target base station 20, and the current base station 10 and the target base station 20 exchange resource status reports through an X2 interface.
Wherein the target base station 20 is configured to transmit radio resource loading status information of a neighboring cell to the current base station 10, the neighboring cell being adjacent to the cell of the current base station 10,
the current base station 10 is configured to obtain radio resource load status information through an X2 interface in the long term evolution LTE system; and determining the load contribution degree of the NGBR service to the corresponding adjacent cell from the wireless resource load state information.
Further, the current base station 10 is specifically configured to:
transmitting a resource status request message to the target base station 20 through an X2 interface in the LTE system; receiving a resource status update message through an X2 interface to acquire radio resource load status information of an adjacent cell;
the target base station 20 is specifically configured to: and responding to the resource state request message, and sending the counted wireless resource load state information of the adjacent cell to the current base station 10 through a resource state update message.
Further, the target base station 20 is further configured to:
after responding to the resource status request message, the wireless resource load status information of the neighboring cell is periodically counted, and the counted result is sent to the current base station 10 through the resource status update message.
Further, the current base station 10 is specifically configured to:
determining Physical Resource Block (PRB) resources occupied by uplink and downlink NGBR service scheduling priority bit rates in each adjacent cell from wireless resource load state information; or,
determining the PRB utilization rate which must be occupied by the uplink and downlink NGBR services in each adjacent cell at minimum from the wireless resource load state information, wherein the PRB utilization rate which must be occupied by the uplink and downlink NGBR services at minimum represents the PRB resources occupied by the scheduling priority bit rate of all the uplink and downlink NGBR services in the adjacent cell and accounts for the percentage of the total PRB resources of the uplink and downlink of the adjacent cell; or,
and determining the cell of the true contribution degree of the uplink and downlink NGBR services in each adjacent cell to the load from the wireless resource load state information.
Further, the current base station 10 is further configured to:
and after determining the load contribution degree of the non-guaranteed bit rate NGBR service to the corresponding adjacent cell, carrying out load balance calculation on the adjacent cell according to the load contribution degree of the NGBR service to the corresponding adjacent cell.
The system for acquiring radio resource status information provided by this embodiment includes the current base station and the target base station in the method embodiment of the present invention, and can be used to execute the method for acquiring radio resource status information of the present invention, and has corresponding functions and beneficial effects. For details of the technique not described in detail in this embodiment, reference may be made to the method for acquiring the radio resource status information provided in this embodiment of the present invention.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A method for acquiring radio resource status information is characterized by comprising the following steps:
a current base station acquires wireless resource load state information of an adjacent cell sent by a target base station through an X2 interface in a Long Term Evolution (LTE) system, wherein the adjacent cell is adjacent to a cell of the current base station;
and the current base station determines the load contribution degree of the non-guaranteed bit rate NGBR service to the corresponding adjacent cell from the wireless resource load state information.
2. The method of claim 1, wherein the acquiring, by the current base station through an X2 interface in the LTE system, radio resource load status information of the neighboring cell sent by the target base station comprises:
the current base station sends a resource state request message to the target base station through an X2 interface in the LTE system;
the target base station responds to the resource state request message and sends the counted wireless resource load state information of the adjacent cell to the current base station through a resource state updating message;
and the current base station receives the resource state updating message through the X2 interface to acquire the wireless resource load state information of the adjacent cell.
3. The method of claim 2, further comprising:
after the target base station responds to the resource state request message, the wireless resource load state information of the adjacent cell is periodically counted, and the counting result is sent to the current base station through a resource state updating message.
4. The method of claim 1, wherein the determining, by the current base station, the load contribution degree of the non-guaranteed bit rate NGBR service to the corresponding neighbor cell from the radio resource load status information comprises:
the current base station determines Physical Resource Block (PRB) resources occupied by uplink and downlink NGBR service scheduling priority bit rates in each adjacent cell from the wireless resource load state information; or,
the current base station determines that the minimum PRB usage rate which must be occupied by the uplink and downlink NGBR services in each adjacent cell is determined from the wireless resource load state information, and the minimum PRB usage rate which must be occupied by the uplink and downlink NGBR services represents the percentage of the PRB resources occupied by the scheduling priority bit rate of all the uplink and downlink NGBR services in the adjacent cell to the total PRB resources of the uplink and downlink of the adjacent cell; or,
and the current base station determines the cell of the true contribution degree of the uplink and downlink NGBR services in each adjacent cell to the load from the wireless resource load state information.
5. The method according to any of claims 1-4, further comprising, after determining the load contribution of the non-guaranteed bit rate NGBR traffic to the corresponding neighbor cell:
and the current base station performs load balancing calculation on the adjacent cells according to the load contribution degree of the NGBR service pair to the corresponding adjacent cells.
6. A system for acquiring wireless resource state information is characterized by comprising a current base station and a target base station;
the target base station is configured to send radio resource load status information of an adjacent cell to the current base station, the adjacent cell being adjacent to a cell of the current base station,
the current base station is used for acquiring the wireless resource load state information through an X2 interface in a Long Term Evolution (LTE) system; and determining the load contribution degree of the non-guaranteed bit rate NGBR service to the corresponding adjacent cell from the wireless resource load state information.
7. The system of claim 6, wherein the current base station is specifically configured to:
sending a resource status request message to the target base station through an X2 interface in the LTE system; receiving the resource status update message through the X2 interface to acquire radio resource load status information of the neighboring cell;
the target base station is specifically configured to: and responding to the resource state request message, and sending the counted wireless resource load state information of the adjacent cell to the current base station through a resource state updating message.
8. The system of claim 7, wherein the target base station is further configured to:
after responding to the resource state request message, periodically counting the wireless resource load state information of the adjacent cell, and sending the counting result to the current base station through a resource state updating message.
9. The system of claim 6, wherein the current base station is specifically configured to:
determining Physical Resource Block (PRB) resources occupied by uplink and downlink NGBR service scheduling priority bit rates in each adjacent cell from the wireless resource load state information; or,
determining the PRB utilization rate which is minimum to be occupied by the uplink and downlink NGBR services in each adjacent cell from the wireless resource load state information, wherein the PRB utilization rate which is minimum to be occupied by the uplink and downlink NGBR services represents the PRB resources occupied by the scheduling priority bit rate of all the uplink and downlink NGBR services in the adjacent cell and accounts for the percentage of the total PRB resources of the uplink and downlink of the adjacent cell; or,
and determining the cell of the true contribution degree of the uplink and downlink NGBR service to the load in each adjacent cell from the wireless resource load state information.
10. The system according to any of claims 6-9, wherein said current base station is further configured to:
after determining the load contribution degree of the non-guaranteed bit rate NGBR service to the corresponding adjacent cell, carrying out load balance calculation on the adjacent cell according to the load contribution degree of the NGBR service to the corresponding adjacent cell.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101686497A (en) * | 2008-09-24 | 2010-03-31 | 华为技术有限公司 | Cell load balancing method, cell load evaluation method and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101686497A (en) * | 2008-09-24 | 2010-03-31 | 华为技术有限公司 | Cell load balancing method, cell load evaluation method and device |
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