CN111866939B

CN111866939B - Method and device for reporting wireless channel load and network side equipment

Info

Publication number: CN111866939B
Application number: CN201910364202.7A
Authority: CN
Inventors: 周叶; 刘爱娟; 彦楠
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2019-04-30
Filing date: 2019-04-30
Publication date: 2022-05-03
Anticipated expiration: 2039-04-30
Also published as: CN111866939A

Abstract

The invention provides a method and a device for reporting wireless channel load and network side equipment. The reporting method comprises the following steps: reporting the load information to a second node; wherein, the load information includes a frequency band identifier and a wireless channel load of a target frequency band indicated by the frequency band identifier. By adopting the method of the invention, the second node can acquire the load states of different frequency bands in the cell by reporting the wireless channel load based on the frequency band to the second node, so as to carry out more accurate network condition analysis and load balancing switching, and solve the problem that the wireless channel load can not meet the actual requirement in the prior art by defining and reporting the wireless channel load by the granularity of the cell.

Description

Method and device for reporting wireless channel load and network side equipment

Technical Field

The present invention relates to the field of wireless technologies, and in particular, to a method, an apparatus, and a network side device for reporting a wireless channel load.

Background

In a wireless mobile communication system, for the purposes of system management, load balancing, and the like, one wireless base station may report the wireless channel load situation of the base station itself to an operation and management node or other base stations. In a general wireless communication technology, the load of a wireless channel is always defined in terms of cell granularity. However, as wireless communication technology develops, the radio channel load is defined and reported at the granularity of a cell, which is too coarse to meet practical requirements.

Disclosure of Invention

The invention aims to provide a method, a device and a network side device for reporting wireless channel load, which are used for solving the problem that the prior art cannot meet the actual requirement by defining and reporting the wireless channel load according to the granularity of a cell.

The embodiment of the invention provides a method for reporting a wireless channel load, which is applied to a first node, wherein the method comprises the following steps:

reporting the load information to a second node;

wherein, the load information includes a frequency band identifier and a wireless channel load of a target frequency band indicated by the frequency band identifier.

Optionally, the method for reporting a radio channel load includes at least one of the following information:

in a preset time period, the ratio of PRBs already used for transmitting data in all physical resource blocks PRBs belonging to the target frequency band;

in a preset time period, the occupation ratio of PRBs which are not used for transmitting data and can be used for transmitting data in all PRBs belonging to the target frequency band;

in a preset time period, the ratio of used PDCCH CCEs in all PDCCH control channel units CCE belonging to the target frequency band;

and in a preset time period, the occupation ratio of unused PDCCH CCEs available for use in all PDCCH control channel elements CCEs belonging to the target frequency band.

Optionally, the method for reporting a radio channel load further includes:

and measuring the wireless channel load of the target frequency band to obtain the load information.

Optionally, the method for reporting a radio channel load, where the measuring the radio channel load of the target frequency band and obtaining the load information includes:

and measuring the wireless channel load of the target frequency band according to the reporting indication of the second node to obtain the load information.

Optionally, the method for reporting a radio channel load further includes:

receiving a reporting instruction sent by the second node;

and reporting the load information to the second node according to the reporting indication.

Optionally, the reporting method of the radio channel load, wherein the reporting indication includes first information used for indicating the first node to report the radio channel load within a preset time period.

Optionally, the reporting method of the radio channel load, wherein the reporting indication includes second information used for indicating the first node to report the radio channel load at a preset period.

Optionally, in the method for reporting a radio channel load, when the reporting instruction further includes first information used for instructing the first node to report the radio channel load in a preset time period, a time length of the preset time period indicated in the first information is equal to a time length of a preset period indicated in the second information.

Optionally, the method for reporting a radio channel load includes that the first node is one of nodes in a radio access network, and the second node is another node in the radio access network except the first node, or a tracking and collecting entity device.

The embodiment of the invention also provides a method for reporting the wireless channel load, which is applied to a second node, wherein the method comprises the following steps:

acquiring load information reported by a first node;

Optionally, the method for reporting a radio channel load further includes:

and sending a reporting instruction for instructing the first node to report the load information to the first node.

The embodiment of the present invention further provides a network side device, wherein the network side device is a first node, and includes a transceiver, a memory, a processor, and a program stored in the memory and capable of running on the processor; wherein the processor is configured to:

reporting the load information to a second node;

Optionally, the network side device, wherein the radio channel load includes at least one of the following information:

Optionally, the network-side device, wherein the processor is further configured to:

Optionally, in the network-side device, where the processor measures a radio channel load of the target frequency band to obtain the load information, includes:

receiving a reporting instruction sent by the second node;

and the processor reports the load information to the second node according to the reporting indication.

Optionally, the network side device, wherein the reporting indication includes first information used for indicating the first node to report the radio channel load in a preset time period.

Optionally, the network side device, wherein the reporting indication includes second information used for instructing the first node to report the radio channel load at a preset period.

Optionally, in the network side device, when the reporting indication further includes first information used for indicating that the first node reports the radio channel load in a preset time period, a time length of the preset time period indicated in the first information is equal to a time length of a preset period indicated in the second information.

Optionally, the network-side device, where the first node is one of nodes in a radio access network, and the second node is another node in the radio access network except the first node, or a tracking and collecting entity device.

The embodiment of the present invention further provides a network side device, wherein the network side device is a second node, and includes a transceiver, a memory, a processor, and a program stored in the memory and capable of running on the processor; wherein the processor is configured to:

acquiring load information reported by a first node;

The embodiment of the present invention further provides a device for reporting a wireless channel load, which is applied to a first node, where the device includes:

the information reporting module is used for reporting the load information to the second node;

The embodiment of the present invention further provides a device for reporting a wireless channel load, which is applied to a second node, where the device includes:

the information acquisition module is used for acquiring the load information reported by the first node;

An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the program, when executed by a processor, implements the steps in the method for reporting a radio channel load according to any of the above embodiments.

At least one of the above technical solutions of the specific embodiment of the present invention has the following beneficial effects:

the method for reporting the wireless channel load according to the embodiment of the present invention reports the wireless channel load based on the frequency band to the second node, so that the second node learns the load states of different frequency bands in the cell, and performs more accurate network condition analysis and load balancing switching, thereby solving the problem that the prior art cannot meet the actual requirement by defining and reporting the wireless channel load according to the granularity of the cell.

Drawings

Fig. 1 is a flowchart illustrating an embodiment of a method for reporting a radio channel load according to the present invention;

fig. 2 is a schematic diagram illustrating a form of a radio channel load according to an embodiment of the present invention;

fig. 3 is a schematic diagram of another form of a radio channel load according to the reporting method of the radio channel load according to the embodiment of the present invention;

fig. 4 is a schematic flow chart of a reporting method between a first node and a second node according to an embodiment of the present invention;

fig. 5 is a second schematic flow chart of a process between a first node and a second node according to the reporting method of the embodiment of the present invention;

fig. 6 is a third schematic flow chart of a process between a first node and a second node according to the reporting method of the embodiment of the present invention;

fig. 7 is a flowchart illustrating another embodiment of a method for reporting a radio channel load according to an embodiment of the present invention;

fig. 8 is a schematic flow chart illustrating a process of performing load balancing handover by using the reporting method according to the embodiment of the present invention;

fig. 9 is a second schematic flow chart illustrating a process of performing load balancing handover by using the reporting method according to the embodiment of the present invention;

fig. 10 is a schematic structural diagram of the network-side device according to an embodiment of the present invention;

fig. 11 is a schematic structural diagram of the network-side device according to another embodiment of the present invention;

fig. 12 is a schematic structural diagram of a reporting apparatus according to an embodiment of the present invention;

fig. 13 is a second schematic structural diagram of the reporting apparatus according to the embodiment of the present invention.

Detailed Description

In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.

The method for reporting the radio channel load in the embodiment of the invention is applied to a radio communication system, and the radio communication system can be a new air interface NR system.

In the wireless communication system using the method for reporting a radio channel load according to the embodiment of the present invention, for the purposes of system management, load balancing, and the like, one of the base stations (corresponding to the first node) in the radio access network may report a radio channel load condition of the base station to a data Collection node (corresponding to the second node), where the data Collection node may be a Trace Collection Entity (TCE) device or another base station in the radio access network.

Wherein, the TCE device may perform network optimization according to the reported wireless channel load condition, such as increasing or decreasing configured cells; other base stations can carry out load balancing operation according to the reported wireless channel load condition, and when the self load is heavier, the user terminal can be switched to a base station with lighter load.

In a general wireless communication technology, a load of a wireless channel is defined according to a cell, and other base stations can only know the load of the cell, but if the cell supports multiple frequency bands, channel load conditions of different frequency bands may be different, and a situation that a narrower frequency band is nested inside a wider frequency band often occurs in one cell, and the load of the cell reported by the wireless base station cannot reflect the load condition in each frequency band, which may cause a handover failure when a terminal is handed over, and cannot meet actual requirements.

In order to solve the above problem, an embodiment of the present invention provides a method for reporting a wireless channel load, where a first node is capable of reporting a wireless channel load based on a frequency band to a second node, so that the second node learns load states of different frequency bands in a cell, so as to perform more accurate network condition analysis and perform load balancing handover.

One embodiment of the method for reporting a radio channel load according to the embodiment of the present invention is applied to a first node, and as shown in fig. 1, the method includes:

s110, reporting the load information to a second node;

Compared with the prior art, in the method for reporting a radio channel load according to the embodiment of the present invention, the first node can report load information carrying a frequency band identifier to the second node, so as to report the radio channel load of the target frequency band indicated by the frequency band identifier, so that the second node knows a load state of the first node defined by using the frequency band as a granularity.

Optionally, in step S110, the reported load information may include a list, in which a plurality of band identifiers and radio channel loads corresponding to each band identifier are recorded, where each band identifier is used to indicate a target band, and different band identifiers are used to indicate different target bands. By the method, the load conditions in the multiple frequency bands can be reported to the second node.

It should be noted that the frequency band identifier corresponding to each target frequency band may be determined according to system convention or through network side configuration.

In addition, in step S110, in the embodiment of the present invention, the load information reported to the second node may include a utilization rate and/or a utilization rate of a Physical Resource Block (PRB), or may include a utilization rate and/or a utilization rate of a Physical Downlink Control Channel (PDCCH) Control Channel Element (CCE).

In addition, the first node in the radio access network may be a node including a physical layer in the network side, for example, the first node may be a non-split base station gNB, or a split gNB as a whole, or a Distributed Unit (DU) portion of a split gNB. The second node is a second node in the radio access network or a Tracking and Collecting Entity (TCE) device.

It should be noted that, for the split-type gNB, as shown in fig. 2, one gNB further includes a plurality of sub-nodes, and the plurality of sub-nodes are respectively deployed in different geographic locations.

Specifically, a gNB includes a gNB central Unit gNB- (Centralized Unit, CU) and at least one gNB distribution Unit gNB-DU, which are connected via an F1 interface. The gNB-DU can interact data with the user terminal UE through an air interface; the gNB-CU can exchange data with the 5G core network through NG interfaces (including a control plane NG interface N2 and a user plane NG interface N3), and can also be connected with other gNB through an Xn interface.

In addition, the gNB-CU can further comprise a Control plane protocol (CP) central node (namely, gNB-CU-CP) and at least one User plane protocol (UP) central node (namely, gNB-CU-UP), wherein the gNB-CU-CP and the gNB-CU-UP are connected through an E1 interface.

It can be understood that the PRB and PDCCH CCE to be reported in the load information are both physical layer concepts, and are directly controlled and scheduled by the physical layer. In the split gNB, the physical layer is always located inside the DU. Therefore, in the separate gNB, the radio channel load can be measured by the DU itself and then reported to the TCE device or the gNB-CU through the interface.

Therefore, in step S110, in an embodiment, the first node in the radio access network may be a gNB-DU in the split gNB, and the second node may be a gNB-CU in the split gNB; in another embodiment, the first node in the radio access network may be a non-split base station gNB, or any one of a split-type gNB and a gNB-DU as a whole, and the second node is a TCE device; in another embodiment, the first node in the radio access network may be a non-split base station gNB, or any one of the split-type gNB and the gNB-DU as a whole, and the second node is another node in the radio access network except the first node, such as a gNB or an eNB.

In this embodiment of the present invention, optionally, the radio channel load includes at least one of the following information:

Specifically, the radio channel load may be a cell or a beam.

For example, the first embodiment of the wireless channel loading is:

the wireless channel load comprises PRB utilization rate and/or PDCCH CCE utilization rate which are spatially defined by taking a cell as granularity and frequency defined by taking a frequency band as granularity.

That is, the radio channel load includes the percentage of PRBs already used for data transmission in all physical resource blocks PRBs belonging to the target frequency band in the target cell in the preset time period T; and/or comprises: and in a preset time period T, in the target cell, the occupation ratio of used PDCCH CCEs in all Physical Downlink Control Channel (PDCCH) Control Channel Elements (CCEs) belonging to the target frequency band.

Specifically, referring to fig. 2, in a preset time period T, in a target cell, a calculation manner of a ratio of PRBs already used for data transmission in all physical resource blocks PRBs belonging to a target frequency band may be a formula one:

100×M1(T)/P(T)

wherein, P (T) is the number of all physical resource blocks PRB available for a certain transmission direction (uplink or downlink) in the target frequency band in the preset time period T; m1(T) is the number of PRBs that have been used for transmitting data among all physical resource blocks, PRBs.

Similarly, the first formula may also be used to calculate a preset time period T, and the ratio of used PDCCH CCEs in all PDCCH control channel elements CCE belonging to the target frequency band in the target cell, that is, the PDCCH CCE utilization rate; when calculating the PDCCH CCE utilization rate, P (T) is the number of all PDCCH CCEs in the target frequency band in the preset time period T, and M1(T) is the number of PDCCH CCEs which are used by all PDCCH CCEs.

Optionally, the PRB utilization and/or PDCCH CCE utilization calculated by the formula one are integer values of the calculation result of the formula one.

The second embodiment of the wireless channel load is as follows:

the wireless channel load comprises PRB availability and/or PDCCH CCE availability which are spatially defined by taking a cell as granularity and frequency defined by taking a frequency band as granularity.

That is, the radio channel load includes the percentage of PRBs that are not used for transmitting data and are available for transmitting data among all PRBs belonging to the target frequency band in the target cell in the preset time period T; and/or, comprising: and in a preset time period T, in the target cell, the occupation ratio of unused and available PDCCH CCEs in all PDCCH control channel elements CCEs belonging to the target frequency band.

Specifically, referring to fig. 3, a calculation manner of the PRB availability of the target frequency band in the preset time period T and the target cell, that is, a calculation manner of the percentage of PRBs which are not used for data transmission and are available for data transmission in all PRBs belonging to the target frequency band in the preset time period T and the target cell may be a formula two:

100×A1(T)/P(T)

wherein, P (T) is the number of all physical resource blocks PRB available for a certain transmission direction (uplink or downlink) in the target frequency band in the preset time period T; a1(T) is the number of PRBs that are not used for transmitting data and that are available for transmitting data among all physical resource blocks, PRBs.

Similarly, the second formula may also be used to calculate the occupation ratio of unused PDCCH CCEs available for use in all PDCCH CCE control channel elements CCE belonging to the target frequency band in the target cell in the preset time period T, that is, the PDCCH CCE availability of the target frequency band in the preset time period T and the target cell.

When calculating the PDCCH CCE availability, P (T) is the number of all PDCCH CCEs in the target frequency band in the preset time period T, and A1(T) is the number of unused PDCCH CCEs which are available for use in all the PDCCH CCEs.

Optionally, the PRB availability and/or PDCCH CCE availability calculated by the formula two is an integer value of a calculation result of the formula one.

A third embodiment of the wireless channel loading is:

the wireless channel load comprises PRB availability and/or PDCCH CCE availability which are spatially defined by taking beams as granularity and frequency defined by taking frequency bands as granularity.

That is, the radio channel load includes, in a preset time period T, a ratio of PRBs that are not used for transmitting data and are available for transmitting data among all PRBs belonging to the target frequency band on the target beam; and/or, comprising: and in a preset time period T, on a target beam, the occupation ratio of unused and available PDCCH CCEs in all PDCCH control channel elements CCE belonging to the target frequency band is determined.

Specifically, the PRB availability and/or PDCCH CCE availability defined by the frequency band as granularity may be calculated by formula two with the beam as granularity, and the specific calculation manner is the same as the calculation manner of the PRB availability and/or PDCCH CCE availability defined by the frequency band as granularity in the foregoing embodiment, and is not described in detail here.

It should be noted that, since the target beam may cause interference to other beams, or other beams may interfere with the target beam, some PRBs may not be used for transmitting data, and therefore even if a PRB is not used for transmitting data, it does not necessarily mean that the PRB is available for transmitting data, and therefore the preset time period T needs to be determined, on the target beam, among all PRBs belonging to the target frequency band, a PRB that is not used for transmitting data and is available for transmitting data. Similarly, the same applies to the calculation of PDCCH CCE availability.

Optionally, the method for reporting a radio channel load according to the embodiment of the present invention further includes:

Optionally, in an embodiment, the step of measuring the radio channel load of the target frequency band may be automatically triggered by the first node; alternatively, the triggering may be autonomous based on preset monitoring conditions.

In another embodiment, the measuring the wireless channel load of the target frequency band and obtaining the load information includes:

By adopting the embodiment, the first node starts the step of measuring the wireless channel load of the target frequency band according to the reporting indication of the second node.

receiving a reporting instruction sent by the second node;

in step S110, the load information is reported to the second node according to the reporting indication.

Specifically, the second node sends a reporting instruction to the first node, so as to instruct the first node to measure and report the wireless channel load. Optionally, the reporting indication may further instruct the first node to report the radio channel load in a single, conditional triggered, or periodic reporting manner.

Optionally, the reporting indication includes first information used for indicating the first node to report the radio channel load in a preset time period.

Specifically, the first node is instructed to measure the measurement duration of the wireless channel load measurement by reporting the preset time period of the first information in the instruction.

Optionally, the reporting indication includes second information for instructing the first node to report the radio channel load at a preset period.

Specifically, the reporting indication includes the second information, and the first node is indicated to report the radio channel load at a preset period.

Optionally, when the reporting instruction further includes first information for instructing the first node to report the radio channel load in a preset time period, a time length of the preset time period indicated in the first information is equal to a time length of a preset period indicated in the second information.

After acquiring the reporting instruction sent by the second node, the first node measures and reports the wireless channel load according to the measurement mode and the reporting mode indicated in the reporting instruction.

Specifically, the first node reports the measured radio channel load of at least one frequency band supported by at least one cell or beam to the second node.

In an embodiment of the method for reporting a radio channel load according to the present invention, when a first node is a node in a radio access network including a physical layer and a second node is a TCE, a process of reporting the radio channel load to the second node by the first node includes, as shown in fig. 4:

s410, the TCE sends a message to a node in a wireless access network containing a physical layer, wherein the message comprises a reporting instruction which indicates the node in the wireless access network containing the physical layer to measure and report the load of a wireless channel; the reporting indication is used for indicating a node in a wireless access network to report the wireless channel load in a single-time, condition-triggered or periodic reporting mode; optionally, the time length may include the preset period and the preset time period described above;

s420, a node in the radio access network including the physical layer triggers autonomously, or triggers a measurement operation according to the reporting instruction in step S410, and measures the radio channel load of a preset time period for at least one frequency band supported by at least one cell or beam, to obtain at least one of the information included in the mentioned radio channel load;

s430, the node in the radio access network including the physical layer reports the radio channel load of the at least one frequency band supported by the at least one cell or beam obtained by measurement in step S420, that is, reports the radio channel load of the target frequency band, to the TCE.

The TCE receives the radio channel load, and may perform big data analysis according to the radio channel load, for example, analyze the utilization of different frequency bands in a certain geographic area, so as to adjust the frequency selection priority in a targeted manner.

In another embodiment of the method for reporting a radio channel load according to the embodiment of the present invention, when the first node is a gNB-DU and the second node is a gNB-CU, a process of reporting the radio channel load to the second node by the first node includes, as shown in fig. 5:

s510, a gNB-CU sends an F1 interface message to a gNB-DU, wherein the interface message comprises a reporting instruction which indicates a node in a wireless access network comprising a physical layer to measure and report the load of a wireless channel; the reporting indication is used for indicating a node in a wireless access network to report the wireless channel load in a single-time, condition-triggered or periodic reporting mode; optionally, the time length may include the preset period and the preset time period described above;

s520, the gNB-DU measures the radio channel load in a preset time period for at least one frequency band supported by at least one cell or beam by triggering measurement operations autonomously or according to the reporting instruction in step S510, and obtains at least one of the information included in the mentioned radio channel load;

s530, the gNB-DU reports the radio channel load of the at least one frequency band supported by the at least one cell or beam obtained by measurement in step S520, that is, the radio channel load of the target frequency band to the gNB-CU.

In another embodiment of the method for reporting a radio channel load according to the embodiment of the present invention, when the first node is a gNB1 and the second node is a gNB2 or an eNB, a process of reporting the radio channel load to the second node by the first node includes, as shown in fig. 6:

s610, the gNB2 or the eNB sends an Xn or X2 interface message to the gNB1, wherein the interface message comprises a reporting instruction which indicates a node in a wireless access network comprising a physical layer to measure and report the wireless channel load; the reporting indication is used for indicating a node in a wireless access network to report the wireless channel load in a single-time, condition-triggered or periodic reporting mode; optionally, the time length may include the preset period and the preset time period described above;

s620, the gNB1 triggers a measurement operation by an autonomous trigger or according to the reporting instruction in step S610, and measures the radio channel load of a preset time period for at least one frequency band supported by at least one cell or beam, to obtain at least one of the information included in the mentioned radio channel load;

s630, the gNB1 reports the radio channel load of the at least one frequency band supported by the at least one cell or beam obtained by measurement in step S620, that is, reports the radio channel load of the target frequency band to the gNB2 or eNB.

In the method for reporting a radio channel load according to the embodiment of the present invention, the reported load information includes a radio channel load of a target frequency band, so that the definition and reporting of the radio channel load by a granularity of the frequency band are supported, so that a radio access network node that acquires the load information can more accurately perform a load balancing operation, and a TCE device that acquires the load information can acquire load states of different frequency bands in a geographic area according to the radio channel load, so as to perform big data analysis to adjust a frequency band selection priority.

One embodiment of the method for reporting a radio channel load according to the embodiment of the present invention is applied to a second node, and as shown in fig. 7, the method includes:

s710, acquiring load information reported by a first node;

Compared with the prior art, the method for reporting the wireless channel load in the embodiment of the invention has the advantages that the second node acquires the wireless channel load of the target frequency band reported by the first node, so that the load state of the first node defined by taking the frequency band as the granularity can be obtained, and the load balancing operation can be accurately executed or the big data analysis can be carried out to adjust the frequency band selection priority.

Optionally, in step S710, the obtained load information may include a utilization rate and/or an availability rate of a Physical Resource Block (PRB), or may include a utilization rate and/or an availability rate of a Physical Downlink Control Channel (PDCCH) Control Channel Element (CCE).

In addition, the first node in the radio access network may be a node including a physical layer in the network side of the radio access network, for example, the first node may be a non-split base station gNB, or a split gNB as a whole, or a Distributed Unit (DU) portion of the split gNB. The second node is a second node in the radio access network or a Tracking and Collecting Entity (TCE) device.

For example, in one embodiment, the first node in the radio access network may be a gNB-DU in a split gNB, and the second node may be a gNB-CU in the split gNB; in another embodiment, the first node in the radio access network may be a non-split base station gNB, or any one of a split-type gNB and a gNB-DU as a whole, and the second node is a TCE device; in another embodiment, the first node in the radio access network may be a non-split base station gNB, or any one of the split-type gNB and the gNB-DU as a whole, and the second node is another node in the radio access network except the first node, such as a gNB or an eNB.

Optionally, the radio channel load comprises at least one of the following information:

The method for determining the wireless channel load includes any one of the above information, which may refer to the detailed description of the method applied to the first node side in the embodiment of the present invention, and is not described herein again.

Optionally, the method further comprises:

In the method for reporting a wireless channel load according to the embodiment of the present invention, a specific implementation process of reporting load information between the second node and the first node may refer to the above detailed description in conjunction with fig. 4 to fig. 6, and is not described herein again.

Further, by using the method for reporting a wireless channel load according to the embodiment of the present invention, the second node obtains the load information of the target frequency band reported by the first node, and can further trigger a handover process aiming at load balancing based on the load information with the frequency band as a granularity.

For example, when the second node is a gbb-CU in a separate type gbb node and the first node is a gbb-DU in the separate type gbb node, the gbb-CU can trigger an intra-node handover process for load balancing according to load information with a frequency band as granularity reported by a plurality of gbb-DUs.

Referring to fig. 8, the handover process specifically includes the steps of:

s810, reporting the load information of the cell 1 to a gNB-CU by a gNB-DU1, and reporting the load information of the cell 2 to a gNB-CU by a gNB-DU 2; according to the method provided by the embodiment of the invention, the load information reported by the gNB-DU1 and the gNB-DU2 comprises the wireless channel load of a target frequency band;

s820, a gNB-CU acquires load information respectively reported by a gNB-DU1 and a gNB-DU2, determines that the overall load conditions of a cell 1 and a cell 2 are close to each other according to the load information respectively reported by the gNB-DU1 and the gNB-DU2, but the load of the cell 1 is lower than that of the cell 2 in a target frequency band if the load information is determined to be respectively reported by the gNB-DU1 and the gNB-DU2, and determines that a signal of the cell 1 can be measured by the UE1 currently served by the cell 2 and the target frequency band, the gNB-CU judges that the UE1 should be switched from the cell 2 with the heavier load of the target frequency band to the cell 1 with the lighter load of the target frequency band according to the load information respectively reported by the gNB-DU1 and the gNB-DU2 so as to balance the load;

s830, the gNB-CU triggers a switching process between different gNB-DUs in the gNB-CU, and the UE1 is switched to the cell 1.

Similarly, the handover procedure is also applicable to load information reporting and handover with beam granularity, and will not be described in detail herein.

By adopting another switching process of the method for reporting the radio channel load according to the embodiment of the present invention, for example, the first node is a first node gNB1 in the radio access network, the second node is a second node gNB2 in the radio access network, and the gNB2 can switch for the purpose of load balancing according to the radio channel load reported by the gNB 1.

If cell 1 and cell 2 are both located in the area of the gNB1, referring to fig. 9, the handover process specifically includes the following steps:

s910, reporting the load information of the cell 1 and the cell 2 to the gNB2 by the gNB 1; according to the method of the embodiment of the invention, the load information of the cell 1 and the cell 2 reported by the gNB1 respectively comprises the wireless channel load of the target frequency band;

s920, the gNB2 acquires load information of the cell 1 and the cell 2 reported by the gNB1, if the load information determines that the overall load conditions of the cell 1 and the cell 2 are similar, but the load of the cell 1 is lower than that of the cell 2 in a target frequency band, and if the load information determines that the heavy load condition occurs on the target frequency band in the cell 3 governed by the gNB2, and meanwhile, the UE1 currently served by the cell 3 and the target frequency band can measure signals of the cell 1 and the cell 2, the gNB2 determines that the relatively light cell 1 in the target frequency band can be used as a first node for switching according to the load information reported by the gNB1 so as to balance the load;

s930, the gNB2 triggers a handover procedure to handover the UE1 to cell 1.

It can be understood that, by using the method for reporting a radio channel load according to the embodiment of the present invention, the handover process performed by the second node for the purpose of load balancing is not limited to include only the above implementation process, and is not described in detail herein.

An embodiment of the present invention further provides a network side device, where the network side device is a first node, and as shown in fig. 10, the network node includes: a processor 1000; a memory 1020 connected to the processor 1000 through a bus interface 1030, and a transceiver 1010 connected to the processor 1000 through a bus interface; the memory 1020 is used for storing programs and data used by the processor in performing operations; transmitting data information or pilot frequency through the transceiver 1010, and receiving an uplink control channel through the transceiver 1010; when the processor 1000 calls and executes the programs and data stored in the memory 1020, the following functional modules are implemented: the processor 1000 is used for reading the program in the memory 1020 and executing the following processes:

reporting the load information to a second node;

Optionally, the processor 1000 is further configured to:

Optionally, the processor 1000 measures a radio channel load of the target frequency band to obtain the load information, including:

Optionally, the processor 1000 is further configured to:

receiving a reporting instruction sent by the second node;

and the processor 1000 reports the load information to the second node according to the reporting indication.

Optionally, the first node is one of nodes in a radio access network, and the second node is another node in the radio access network except the first node, or a tracking and collecting entity device.

Additionally, in FIG. 10, the bus architecture may include any number of interconnected buses and bridges, with various circuits being linked together, particularly one or more processors represented by processor 1000 and memory represented by memory 1020. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 1010 may be a number of elements including a transmitter and a transceiver providing a means for communicating with various other apparatus over a transmission medium. The processor 1000 is responsible for managing the bus architecture and general processing, and the memory 1020 may store data used by the processor 1000 in performing operations.

An embodiment of the present invention further provides a network side device, where the network side device is a second node, and as shown in fig. 11, the network node includes: a processor 1100; a memory 1120 connected to the processor 1100 through a bus interface 1130, and a transceiver 1110 connected to the processor 1100 through a bus interface; the memory 1120 is used for storing programs and data used by the processor in performing operations; transmitting data information or pilot frequency through the transceiver 1110, and also receiving an uplink control channel through the transceiver 1110; when the processor 1100 calls and executes the programs and data stored in the memory 1120, the following functional blocks are implemented: the processor 1100 is used for reading the program in the memory 1120 and executing the following processes:

acquiring load information reported by a first node;

Optionally, the processor 1100 is further configured to:

Additionally, in FIG. 11, the bus architecture may include any number of interconnected buses and bridges, with various circuits being linked together, particularly one or more processors represented by processor 1100 and memory represented by memory 1120. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 1110 may be a number of elements including a transmitter and a transceiver providing a means for communicating with various other apparatus over a transmission medium. The processor 1100 is responsible for managing the bus architecture and general processing, and the memory 1120 may store data used by the processor 1100 in performing operations.

An embodiment of the present invention further provides a device for reporting a radio channel load, which is applied to a first node, and as shown in fig. 12, the device includes:

an information reporting module 1210, configured to report load information to a second node;

Optionally, the reporting apparatus of the radio channel load, wherein the radio channel load includes at least one of the following information:

Optionally, the apparatus for reporting a radio channel load further includes:

a measuring module 1220, configured to measure the radio channel load of the target frequency band, and obtain the load information.

Optionally, the apparatus for reporting a radio channel load, where the measuring module 1220 measures the radio channel load of the target frequency band to obtain the load information includes:

Optionally, the apparatus for reporting a radio channel load further includes:

an indication receiving module 1230, configured to receive a reporting indication sent by the second node;

the information reporting module 1210 reports the load information to the second node according to the reporting indication.

Optionally, the reporting apparatus of the radio channel load, where the reporting indication includes first information used for indicating the first node to report the radio channel load within a preset time period.

Optionally, the reporting apparatus of the radio channel load, where the reporting indication includes second information used for instructing the first node to report the radio channel load at a preset period.

Optionally, the apparatus for reporting a radio channel load, where the reporting indication further includes first information used to indicate that the first node reports the radio channel load in a preset time period, and a time length of the preset time period indicated in the first information is equal to a time length of a preset period indicated in the second information.

Optionally, the apparatus for reporting a radio channel load, where the first node is one of nodes in a radio access network, and the second node is another node in the radio access network except the first node, or a tracking and collecting entity device.

An embodiment of the present invention further provides a device for reporting a radio channel load, which is applied to a second node, and as shown in fig. 13, the device includes:

an information obtaining module 1310, configured to obtain load information reported by a first node;

Optionally, the apparatus for reporting a radio channel load further includes:

an indication sending module 1320, configured to send, to the first node, a reporting indication for indicating the first node to report the load information.

Another aspect of the specific embodiments of the present invention further provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program, and the computer program, when executed by a processor, implements the steps in the reporting method for a radio channel load according to any one of the above descriptions.

From the above description, those skilled in the art should understand the specific structure of a computer-readable storage medium for implementing the beam failure reporting method of the present invention, and therefore, the detailed description is omitted here.

Furthermore, it is to be noted that in the device and method of the invention, it is obvious that the individual components or steps can be decomposed and/or recombined. These decompositions and/or recombinations are to be regarded as equivalents of the present invention. Also, the steps of performing the series of processes described above may naturally be performed chronologically in the order described, but need not necessarily be performed chronologically, and some steps may be performed in parallel or independently of each other. It will be understood by those skilled in the art that all or any of the steps or elements of the method and apparatus of the present invention may be implemented in any computing device (including processors, storage media, etc.) or network of computing devices, in hardware, firmware, software, or any combination thereof, which can be implemented by those skilled in the art using their basic programming skills after reading the description of the present invention.

Thus, the objects of the invention may also be achieved by running a program or a set of programs on any computing device. The computing device may be a general purpose device as is well known. The object of the invention is thus also achieved solely by providing a program product comprising program code for implementing the method or the apparatus. That is, such a program product also constitutes the present invention, and a storage medium storing such a program product also constitutes the present invention. It is to be understood that the storage medium may be any known storage medium or any storage medium developed in the future. It is further noted that in the apparatus and method of the present invention, it is apparent that each component or step can be decomposed and/or recombined. These decompositions and/or recombinations are to be regarded as equivalents of the present invention. Also, the steps of executing the series of processes described above may naturally be executed chronologically in the order described, but need not necessarily be executed chronologically. Some steps may be performed in parallel or independently of each other.

While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.

Claims

1. A method for reporting radio channel load is applied to a first node, and is characterized in that the method comprises the following steps:

reporting the load information to a second node;

wherein, the load information includes a frequency band identifier and a wireless channel load of a target frequency band indicated by the frequency band identifier;

wherein the radio channel load comprises at least one of the following information:

the occupation ratio of PRBs (physical resource blocks) already used for transmitting data in all PRBs belonging to the target frequency band in a target cell or on a target beam within a preset time period;

within a preset time period, in a target cell or on a target beam, the ratio of PRBs which are not used for transmitting data and can be used for transmitting data in all PRBs belonging to the target frequency band;

the occupation ratio of used PDCCH CCEs in all physical downlink control channel PDCCH control channel units CCE belonging to the target frequency band in a preset time period, in a target cell or on a target beam;

and in a preset time period, in a target cell or on a target beam, the ratio of unused and available PDCCH CCEs in all the PDCCH control channel elements CCEs belonging to the target frequency band is controlled.

2. The method for reporting radio channel load according to claim 1, wherein the method further comprises:

3. The method of claim 2, wherein the measuring the radio channel load of the target frequency band to obtain the load information comprises:

4. The method for reporting radio channel load according to claim 1, wherein the method further comprises:

receiving a reporting instruction sent by the second node;

5. The method of claim 4, wherein the reporting indication includes first information for indicating the first node to report the radio channel load within a preset time period.

6. The method according to claim 4 or 5, wherein the reporting indication includes second information for instructing the first node to report the radio channel load at a predetermined period.

7. The method of claim 6, wherein when the reporting indication further includes first information for indicating that the first node reports the radio channel load in a preset time period, a time length of the preset time period indicated in the first information is equal to a time length of a preset period indicated in the second information.

8. The method of claim 1, wherein the first node is one of nodes in a radio access network, and the second node is another node in the radio access network except the first node, or a tracking and collecting entity device.

9. A method for reporting radio channel load is applied to a second node, and is characterized in that the method comprises the following steps:

acquiring load information reported by a first node;

10. The method for reporting radio channel load according to claim 9, wherein the method further comprises:

11. The method of claim 10, wherein the reporting indication includes first information for indicating the first node to report the radio channel load within a preset time period.

12. The method according to claim 10 or 11, wherein the reporting indication includes second information for instructing the first node to report the radio channel load at a preset period.

13. The method of claim 12, wherein when the reporting indication further includes first information for indicating that the first node reports the radio channel load in a preset time period, a time length of the preset time period indicated in the first information is equal to a time length of a preset period indicated in the second information.

14. The method of claim 9, wherein the first node is one of nodes in a radio access network, and the second node is another node in the radio access network except the first node, or a tracking and collecting entity device.

15. A network side device, wherein the network side device is a first node, and comprises a transceiver, a memory, a processor and a program stored on the memory and capable of running on the processor; wherein the processor is configured to:

reporting the load information to a second node;

16. The network-side device of claim 15, wherein the processor is further configured to:

17. The network-side device of claim 16, wherein the processor measures a radio channel load of the target frequency band to obtain the load information, and comprises:

18. The network-side device of claim 15, wherein the processor is further configured to:

receiving a reporting instruction sent by the second node;

19. The network-side device of claim 18, wherein the reporting indication includes first information used for indicating that the first node reports radio channel load within a preset time period.

20. The network-side device of claim 18 or 19, wherein the reporting indication includes second information for instructing the first node to report the radio channel load at a preset period.

21. The network-side device of claim 20, wherein when the reporting indication further includes first information used for indicating that the first node reports radio channel load in a preset time period, a time length of the preset time period indicated in the first information is equal to a time length of a preset period indicated in the second information.

22. The network-side device of claim 15, wherein the first node is one of nodes in a radio access network, and the second node is another node in the radio access network except the first node, or a trace collection entity device.

23. A network side device, wherein the network side device is a second node, and comprises a transceiver, a memory, a processor, and a program stored in the memory and executable on the processor; wherein the processor is configured to:

acquiring load information reported by a first node in a wireless access network;

24. The network-side device of claim 23, wherein the processor is further configured to:

25. The network-side device of claim 24, wherein the reporting indication includes first information used for indicating that the first node reports radio channel load in a preset time period.

26. The network-side device of claim 24 or 25, wherein the reporting indication includes second information for instructing the first node to report the radio channel load at a preset period.

27. The network-side device of claim 26, wherein when the reporting indication further includes first information used for indicating that the first node reports radio channel load in a preset time period, a time length of the preset time period indicated in the first information is equal to a time length of a preset period indicated in the second information.

28. The network-side device of claim 23, wherein the first node is one of nodes in a radio access network, and the second node is another node in the radio access network except the first node, or a device of a trace collection entity.

29. A reporting apparatus of wireless channel load is applied to a first node, and the apparatus includes:

30. A reporting apparatus of wireless channel load, applied to a second node, is characterized in that the apparatus includes:

31. A 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 reporting a radio channel load according to any one of claims 1 to 8, or the steps of the method for reporting a radio channel load according to any one of claims 9 to 14.