WO2022001544A1

WO2022001544A1 - Scheduling method, base station, and computer readable storage medium

Info

Publication number: WO2022001544A1
Application number: PCT/CN2021/097359
Authority: WO
Inventors: 句帅
Original assignee: 中兴通讯股份有限公司
Priority date: 2020-06-30
Filing date: 2021-05-31
Publication date: 2022-01-06
Also published as: CN113873665A

Abstract

A scheduling method, a base station, and a computer readable storage medium. The scheduling method comprises: respectively obtaining channel quality measurement information between cell portions (CP) in a supercell and a user equipment (UE) (S101); determining an active set from all the CPs in the supercell according to the channel quality measurement information (S102); and performing resource scheduling on the UE by using the CPs in the active set (S103).

Description

Scheduling method, base station, and computer-readable storage medium

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is based on the Chinese patent application with the application number of 202010618053.5 and the filing date of June 30, 2020, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is incorporated herein by reference.

technical field

The present application relates to the field of computer technology, and in particular, to a scheduling method, a base station, and a computer-readable storage medium.

Background technique

A super cell is a cell composed of multiple traditional cells, each of which becomes a component of the super cell, called a cell segment CP (Cell Portion), and each original cell shares spectrum, time domain, etc. Resources, all algorithms and cell parameters are consistent and scheduled uniformly. Therefore, in the view of the user terminal (UE), it is still a cell, and the user cannot see the concept of sector merging. The super cell has the advantages of wide wireless network coverage and low frequency cell handover signaling.

When the UE is within the range of the super cell, if the method of all CP scheduling is adopted, the base station will be overburdened, consume a large amount of air interface resources and network processing resources, and is not conducive to power control; when the UE is in a mobile state, the distance from the UE is relatively If the channel quality of the distant CP is poor, if the measurement report reported by the CP is used as the basis for scheduling, the traffic of the UE will be reduced and the user experience will be affected.

SUMMARY OF THE INVENTION

The following is an overview of the topics detailed in this article. This summary is not intended to limit the scope of protection of the claims.

On the one hand, the embodiments of the present application provide a scheduling method, a base station, and a computer-readable storage medium, so as to improve the scheduling efficiency of the super cell and optimize the user experience.

On the other hand, an embodiment of the present application provides a scheduling method for a super cell, including: separately acquiring channel quality measurement information between each cell segment CP in the super cell and a user terminal UE; The active set is determined among all the CPs in the super cell; the CPs in the active set are used to perform resource scheduling on the UE.

On the other hand, an embodiment of the present application further provides a base station, including a memory, a processor, and a computer program stored in the memory and running on the processor, where the processor implements the above scheduling method when executing the program.

In another aspect, an embodiment of the present application further provides a computer-readable storage medium storing computer-executable instructions, where the computer-executable instructions are used to execute the above scheduling method.

Other features and advantages of the present application will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the present application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the description, claims and drawings.

Description of drawings

The accompanying drawings are used to provide a further understanding of the technical solutions of the present application, and constitute a part of the specification. They are used to explain the technical solutions of the present application together with the embodiments of the present application, and do not constitute a limitation on the technical solutions of the present application.

FIG. 1 is a schematic framework diagram of a system structure platform for executing a scheduling method for a super cell provided by an embodiment of the present application;

FIG. 2 is an overall flowchart of a scheduling method for a super cell provided by an embodiment of the present application;

3 is a flowchart of a method for acquiring channel quality measurement information between each CP and a UE in a super cell provided by an embodiment of the present application;

4 is a flowchart of a method for determining an active set when a UE is in an access phase provided by an embodiment of the present application;

5 is a flowchart of a method for determining an uplink active set when a UE is in a normal service phase provided by an embodiment of the present application;

6 is a flowchart of a method for determining a downlink active set for a UE in a normal service phase provided by an embodiment of the present application;

7 is a flowchart of a method for updating an uplink active set by a UE in a normal service phase provided by an embodiment of the present application;

8 is a flowchart of a method for updating an uplink active set by a UE in a normal service phase provided by another embodiment of the present application;

FIG. 9 is an overall flowchart of a scheduling method for a super cell provided by another embodiment of the present application;

10 is a flowchart of a method for determining a UE active set provided by another embodiment of the present application;

FIG. 11 is a flowchart of a method for determining an uplink active set by a UE in an access phase provided by another embodiment of the present application;

12 is a flowchart of a method for determining an uplink active set when a UE is in a normal service phase provided by another embodiment of the present application;

13 is a flowchart of selection of a method for determining an active set for a UE in a normal service phase provided by another embodiment of the present application;

14 is a flowchart for determining the validity of an active set determination that a UE is in a normal service phase provided by another embodiment of the present application;

15 is a flowchart of a method for determining a downlink active set by a UE in a normal service phase provided by another embodiment of the present application;

FIG. 16 is a schematic diagram of a base station provided by an embodiment of the present application.

detailed description

In order to make the purpose, technical solutions and advantages of the present application more clearly understood, the present application will be described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application.

It should be noted that although the functional modules are divided in the schematic diagram of the device, and the logical sequence is shown in the flowchart, in some cases, the modules may be divided differently from the device, or executed in the order in the flowchart. steps shown or described. The terms "first", "second" and the like in the specification, claims or the above drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

A super cell is a cell composed of multiple traditional cells. Each traditional cell becomes a component of the super cell, called CP (Cell Portion), and each original cell shares resources such as spectrum and time domain. The algorithm and cell parameters are consistent, and the scheduling is unified. Therefore, in the view of the user terminal (UE), it is still a cell, and the user cannot see the concept of sector merging. The super cell has the advantages of wide wireless network coverage and low frequency cell handover signaling.

Based on this, the present application provides a scheduling method, a base station and a computer-readable storage medium for a super cell, so as to improve the scheduling efficiency of the super cell and optimize the user experience.

According to the embodiments of the present application, each cell in the super cell is called a CP, corresponding to a scheduled sector; each super cell has a master CP, called the cell-level master CP, which is set to aggregate processing super cells. The scheduling of cells, etc., is defined according to the hardware location after the super cell is formed, and it is fixed and will not change. In addition, each UE has a UE-level primary CP, which is defined according to the UE's uplink and downlink signal strength, not fixed. It is divided into an uplink UE-level primary CP and a downlink UE-level primary CP. At a certain signal strength threshold The CP in the value is called an active set, which is divided into an uplink active set and a downlink active set, corresponding to multiple scheduled sectors.

The UE in this embodiment of the present application may refer to a user terminal within the range of a super cell, such as a handheld device with a wireless communication function, including a mobile phone, a tablet, a notebook circuit, etc. Devices, multimedia devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminals in 5G networks, etc.

The technical solutions of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are part of the embodiments of the present application, but not all of the embodiments.

Referring to FIG. 1 , FIG. 1 is a schematic framework diagram of a system architecture platform 100 for executing a scheduling method for a super cell provided by an embodiment of the present application, and the system architecture platform 100 is also a resource scheduling system.

In the embodiment shown in FIG. 1 , the system architecture platform 100 includes a hyper cell 110 and a UE 120 camping within the range of the hyper cell 110, wherein the hyper cell 110 includes a cell-level primary CP 111 and a plurality of other CPs 112, The cell-level master CP 111 is configured to: obtain channel quality measurement information between each CP and the UE in the super cell respectively; determine an active set from all CPs in the super cell according to the channel quality measurement information; use the CPs in the active set to measure the UE Perform resource scheduling.

As shown in FIG. 1, the cell-level primary CP 111 includes a primary scheduling module 101 configured to receive channel state reports from the secondary scheduling modules 102 of various other CPs 112, the channel state reports including channel quality measurement information to determine an active set, The main scheduling module 101 is further configured to perform overall scheduling of the super cell, and send scheduling result information to the CPs activated in the determined active set to perform resource scheduling on the UE. The other CPs 112 include an auxiliary scheduling module 102 and a reporting module 103, wherein the auxiliary scheduling module 102 is configured to receive the channel quality measurement information from the reporting module 103, and perform unit conversion on the measurement value in the channel quality measurement information to remove abnormality. value and filtering process, generate a channel status report, upload to the main scheduling module 101 of the cell-level main CP 111, and the reporting module is set to report the channel quality measurement information to the secondary scheduling module 102 of each CP. In addition, the cell-level primary CP 111 and a plurality of other CPs 112 include a transmission module 104, which is set for communication between the primary scheduling module 101 and the secondary scheduling module 102, and the information carried by the transmission module includes channel status reports, active set information, and scheduling result information.

The system architecture platform 100 and the application scenarios described in the embodiments of the present application are for the purpose of illustrating the technical solutions of the embodiments of the present application more clearly, and do not constitute limitations on the technical solutions provided by the embodiments of the present application. For the evolution of the system architecture platform 100 and the emergence of new application scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

Those skilled in the art can understand that the system architecture platform 100 shown in FIG. 1 does not constitute a limitation to the embodiments of the present application, and may include more or less components than those shown in the figure, or combine certain components, or different component layout.

Based on the above-mentioned system architecture platform 100, various embodiments of the scheduling method of the present application are proposed below.

Referring to FIG. 2, FIG. 2 is an overall flowchart of a scheduling method for a super cell provided by an embodiment of the present application. The scheduling method includes but is not limited to:

In step S101, channel quality measurement information between each cell segment CP in the super cell and the user terminal UE is obtained respectively.

Channel quality information includes but is not limited to: PRACH (Physical Random Access Channel, physical random access channel) quality measurement information, PUSCH (Physical Uplink Shared Channel, uplink physical shared channel) quality measurement information, or other channel quality measurement information, etc. , which is not specifically limited in this embodiment.

Step S102: Determine an active set from all CPs in the super cell according to the channel quality measurement information.

According to the embodiment of the present application, the active set is divided into an uplink active set and a downlink active set, corresponding to multiple scheduled sectors.

Step S103, using the CP in the active set to perform resource scheduling on the UE.

According to the embodiment of the present application, the resource scheduling here may include uplink scheduling and downlink scheduling, wherein the uplink scheduling includes but is not limited to:

1. When the UE is in the access phase, all CPs use PRACH for channel quality measurement;

2. When the UE is in the normal service phase, all CPs use SRS (Sounding Reference Signal, channel sounding reference signal) or PUSCH to measure the channel quality;

3. When the UE is in the access phase or the normal service phase, the uplink TAC (Tracking Area Code, tracking area code) calculation, power control parameter calculation, etc. are calculated according to the measurement results of the UE-level primary CP;

4. When the UE is in the access phase or the normal service phase, the uplink PUCCH (Physical Uplink Control Channel) is configured by the cell-level master CP, and received and demodulated by the UE-level master CP;

5. When the UE is in the access phase or in the normal service phase, the uplink PUSCH data reception is designed to be selectively combined and demodulated. As long as the decoding CRC (Cyclic Redundancy Check, Cyclic Redundancy Check) of any CP is correct, it is considered that the TTI (Transmission Time Interval, transmission time interval) is correctly transmitted, and the base station can obtain the correct upstream bit stream.

In addition, downlink scheduling includes but is not limited to:

1. When the UE is in the access phase, the downlink full CP activation is adopted for the scheduling of downlink public messages. The public messages include SSB, SIB (System Information Block, system information block), BCCH (Broadcast Control Channel, broadcast control channel), PCCH ( Paging Control Channel), after these messages are configured and scheduled by the cell-level master CP, they are sent by all CPs in the super cell;

2. When the UE is in the access phase, for the downlink reference signal CSI-RS (Channel State Information-Reference Signal), the downlink full CP is activated. After the cell-level master CP completes the configuration and scheduling, the super cell All CPs in the send;

3. When the UE is in the normal service stage, the cell-level main CP completes the scheduling of PDCCH (Physical Downlink Control Channel, physical downlink control channel) and PDSCH (Physical Downlink Shared Channel, physical downlink shared channel), and then the scheduling result of PDCCH, PDSCH The data stream is sent to the active CP in the active set of the UE, and the active CP in the active set of the UE performs non-coherent joint transmission on the PDCCH and PDSCH.

According to the solution provided by the embodiment of the present application, by introducing the concept of active set, according to the channel quality measurement information between each CP and the user terminal UE, a set of CPs with the best channel quality is selected to provide services for it, and all CPs regularly report the channel quality Measurement information is used to update the active set. For inactive CPs, the power consumption is low, saving air interface resources and network processing resources. For active CPs, it can ensure good signal quality for UEs and improve user experience.

The following further describes the specific steps of determining the active set of the UE when the UE is in the access phase.

Referring to FIG. 3 , FIG. 3 is a flowchart of a method for acquiring channel quality measurement information between each CP and a UE in a super cell provided by an embodiment of the present application. In an embodiment, in step S101, the channel quality measurement information between each cell segment CP in the super cell and the user terminal UE is obtained respectively, which may include:

Step S1011, when the UE is in the access phase, acquire the PRACH quality measurement information of the physical random access channel between each CP and the UE in the super cell. The PRACH channel quality measurement information includes, but is not limited to, a first signal-to-noise ratio SINR (Signal to Interference plus Noise Ratio, signal to interference plus noise ratio) value and a first received power Ps value.

Referring to FIG. 4 , FIG. 4 is a flowchart of a method for determining an uplink active set by a UE in an access phase provided by an embodiment of the present application. In an embodiment, step S102, determining the active set from all CPs in the super cell according to the channel quality measurement information, may include:

Step S1021, determining that the CP corresponding to the first SINR value with the largest value is the first primary CP. The first master CP is a UE-level master CP.

Step S1022, compare the first SINR values corresponding to the remaining CPs in the super cell except the first primary CP with the first SINR values of the first primary CP, and determine that the SINR difference is less than or equal to the first uplink activation threshold The corresponding CP is the active CP. The first uplink activation threshold value may be 13dB.

Step S1023, determining that the set of the first primary CP and the active CP is the uplink active set.

In an embodiment, step S102, determining the active set from all CPs in the super cell according to the channel quality measurement information, may include:

Step S1024, compare the first Ps values corresponding to the remaining active CPs in the uplink active set except the first primary CP with the second uplink activation threshold respectively, and compare the first Ps value to be less than or equal to the second uplink activation threshold The corresponding CP of the value is culled from the upstream active set. The second uplink activation threshold value may be -120dBm.

In an embodiment, step S102, determining the active set from all CPs in the super cell according to the channel quality measurement information, may further include:

Step S1025: Determine the set of all CPs in the super cell as the downlink active set. That is to say, when the UE is in the access phase, the downlink full-CP activation is adopted for the scheduling of downlink common messages. The common messages include SSB, SIB, BCCH, and PCCH. All CPs are sent; for the downlink reference signal CSI-RS, all downlink CPs are activated. After the cell-level master CP completes configuration and scheduling, it is sent by all CPs in the super cell.

The following further describes the specific steps of determining the active set of the UE when the UE is in the normal service phase.

Referring now to FIG. 3 , in an embodiment, in step S101, the channel quality measurement information between each cell segment CP in the super cell and the user terminal UE is obtained respectively, which may further include:

Step S1012, when the UE is in a normal service phase, obtain uplink physical shared channel PUSCH quality measurement information or channel sounding reference signal SRS (Sounding Reference Signal) quality measurement information between each CP and the UE in the super cell. Wherein, the PUSCH channel quality measurement information includes but is not limited to the second SINR value, and the SRS includes but is not limited to the second Ps value

Referring to FIG. 5, FIG. 5 is a flowchart of a method for determining an uplink active set by a UE in a normal service phase provided by an embodiment of the present application. In an embodiment, step S102, determining the active set from all CPs in the super cell according to the channel quality measurement information, may further include:

Step S1026, determine that the CP corresponding to the second SINR value with the largest value is the second primary CP, and separate the second SINR values corresponding to the remaining CPs in the hypercell except the second primary CP with the second primary CP of the second primary CP. Comparing the SINR values, it is determined that the corresponding CP whose SINR difference is less than or equal to the third uplink activation threshold is the active CP, or the CP corresponding to the second Ps value with the largest value is determined to be the second primary CP. The second Ps values corresponding to the remaining CPs except the second primary CP are respectively compared with the second Ps values of the second primary CP, and it is determined that the corresponding CP whose Ps difference is less than or equal to the fourth uplink activation threshold is the activated CP . The second main CP is the UE-level main CP, the third uplink activation threshold may be 13dB, and the fourth uplink activation threshold may be -120dBm.

Step S1027, determining that the set of the second primary CP and the active CP is the uplink active set.

Step S1028, compare the second Ps values corresponding to the remaining active CPs in the uplink active set except the second main CP with the fifth uplink activation threshold value, respectively, and compare the second Ps value less than the fifth uplink activation threshold value corresponding to The CP is culled from the upstream active set. The fifth uplink activation threshold value may be -120dBm.

Referring to FIG. 7 , FIG. 7 is a flowchart of a method for updating an uplink active set by a UE in a normal service phase provided by an embodiment of the present application. According to an embodiment of the present application, it is allowed that the uplink UE-level primary CP is not updated under the condition that a certain preset threshold value is satisfied. Therefore, in step S1026, it is determined that the CP corresponding to the second SINR value with the largest numerical value is the second primary CP, which may further include:

Step S10261, compare the second SINR value with the largest numerical value currently obtained with the second SINR value corresponding to the second main CP determined last time, when the SINR difference value is less than or equal to the first preset threshold value, keep the previous time The determined second main CP is the current second main CP, that is, the second main CP is not updated;

Step S10262, compare the currently obtained second SINR value with the largest numerical value with the second SINR value corresponding to the second main CP determined previously, when the SINR difference is greater than the first preset threshold, compare the currently obtained second SINR value. The CP corresponding to the second SINR value with the largest value is updated as a new second primary CP.

In this way, it is not only beneficial to avoid frequent switching of the primary CP, but also ensures good signal quality of the UE and improves user experience.

Referring to FIG. 8 , FIG. 8 is a flowchart of a method for updating an uplink active set by a UE in a normal service phase provided by another embodiment of the present application. According to an embodiment of the present application, it is allowed that the uplink UE-level primary CP is not updated under the condition that a certain preset threshold value is satisfied. Therefore, in step S1026, it is determined that the CP corresponding to the second Ps value with the largest value is the second main CP, which may further include:

Step S10263, compare the currently obtained second Ps value with the largest numerical value with the second Ps value corresponding to the second main CP determined in the previous time, when the Ps difference is less than or equal to the second preset threshold value, keep the previous Ps value. The determined second main CP is the current second main CP, that is, the second main CP is not updated;

Step S10264, compare the second Ps value with the largest value currently obtained with the second Ps value corresponding to the second main CP determined last time, and when the Ps difference is greater than the first preset threshold, the currently obtained value is compared. The CP corresponding to the second Ps value with the largest value is updated as a new second main CP.

Referring to FIG. 6, FIG. 6 is a flowchart of a method for determining a downlink active set by a UE in a normal service phase provided by an embodiment of the present application. In an embodiment, step S102, determining the active set from all CPs in the super cell according to the channel quality measurement information, may include:

Step S1029, calculating the downlink user equivalent received power value of each CP according to the second SINR value or the second Ps value of each CP;

Step S10210, determining that the CP corresponding to the maximum downlink user equivalent received power value is the third primary CP, where the third primary CP is also the UE-level primary CP;

Step S10211: Compare the downlink user equivalent received power values corresponding to the remaining CPs in the hypercell except the third primary CP with the downlink user equivalent received power values of the third primary CP, respectively, to determine the downlink user equivalent received power value The corresponding CP whose difference is smaller than the downlink activation threshold value is an activated CP.

Step S10212: Determine the set of the third primary CP and the active CP as the downlink active set.

So far, the determination of the uplink active set and the downlink active set for the UE in the access phase and the normal service phase has been completed. The determination of the active set is centrally processed by the cell-level master CP, and the cell-level master CP performs resources on the UE according to the determined active set. scheduling, and sending the scheduling result information to the CP in the active set for execution, including one of the following: using the CP in the uplink active set to receive uplink data sent by the UE; using the CP in the downlink active set to send downlink data to the UE; The activated CP measures channel quality measurement information between the inactive CP and the UE.

In order to more clearly describe the specific steps and processes of the resource scheduling methods in the above embodiments, the following specific embodiments are used for description.

Referring to FIG. 9, FIG. 9 is an overall flowchart of a scheduling method for a super cell provided by an embodiment of the present application. The scheduling method includes but is not limited to:

Step S201, determining the active set of the UE.

In this embodiment, the cell-level master CP periodically updates the UE-level master CP (that is, the optimal sector) and the UE-level master CP according to the different service phases of the UE and the channel quality measurement information between the CP and the user terminal UE in the super cell. activation set.

Step S202, using the active set to perform resource scheduling on the UE.

In this embodiment, the cell-level master CP uses the active set to perform resource scheduling on the UE according to a preset scheduling policy.

Step S203, sending the scheduling result information to the active CP in the active set to perform scheduling.

In this embodiment, the centralized scheduling method is adopted, all CPs in the super cell send channel quality measurement parameters to the cell-level master CP, and the resource scheduling is unified in the master scheduling module of the cell-level master CP, and the scheduling result information is sent to the cell-level master CP. Executed for the CPs in the active set.

Referring to FIG. 10, FIG. 10 is a flowchart of a method for determining a UE active set provided by an embodiment of the present application, wherein step S201 includes:

Step S2011, when the UE is in the access phase, determine the uplink active set;

Step S2012, when the UE is in the access phase, determine the downlink active set;

Step S2013, when the UE is in a normal service stage, determine an uplink active set;

Step S2014, when the UE is in the normal service phase, determine the downlink active set.

Referring to FIG. 11 , FIG. 11 is a flowchart of a method for determining an uplink active set by a UE in an access phase provided by another embodiment of the present application. In an embodiment, in step S2011, when the UE is in the access phase, determine the uplink active set, and the specific steps include but are not limited to:

Step S20111, the cell-level master CP obtains the PRACH measurement results reported by all CPs in the super cell, including but not limited to: preamble identifier PreambleID, SINR value, time offset and Ps value;

Step S20112, the cell-level master CP summarizes the PRACH detection results at the same air interface time according to PreambleID;

Step S20113, use the relative threshold value of SINR and the absolute threshold value of Ps to determine the uplink active set, and the specific method steps include:

a) The SINR value corresponding to the same PreambleID at the same time is obtained by the cell-level master CP, and the CP with the largest SINR value is selected as the UE-level master CP.

b) Compare the SINR value measured by each CP under the same PreambleID with the SINR value measured by the UE-level primary CP. When the following conditions are met, the CP is activated. When the following conditions are not met, the CP is not activated. The decision formula is: :

Among them, SINR _{Msg1, MainCP} represents the SINR measurement value of the UE-level main CP,

Indicates the SINR measurement value of each CP, and ucUlSCActiveSetThr indicates the relative SINR threshold for determining the uplink active set, which can be 13dB by default.

It should be noted that before the UE accesses, the base station does not know the location of the UE. Therefore, each physical cell in the super cell has the same strategy as the normal cell, and each CP sends SSB (Synchronization Signal Block, synchronization signal block) in an omnidirectional cycle. , waiting for UE access.

In an embodiment, in step S2012, when the UE is in the access phase, determining the downlink active set includes: when the UE is in the access phase, the downlink active set is formed by all CPs of the super cell, that is, the strategy of joint transmission by all CPs is adopted, Activate all CPs.

Referring to FIG. 12 , FIG. 12 is a flowchart of a method for determining an uplink active set by a UE in a normal service phase provided by another embodiment of the present application. In an embodiment, in step S2013, when the UE is in a normal service stage, determine the uplink active set, and the specific steps include but are not limited to:

Step S20131, select a method for determining the uplink active set. Referring to FIG. 13 , FIG. 13 is a flowchart for selecting a method for determining an active set for a UE in a normal service phase provided by another embodiment of the present application. According to the embodiments of the present application, when the UE is in the normal service phase, the determination of the uplink active set may be determined by the SINR value or the Ps value measured by the PUSCH/SRS sent by all the CPs in the super cell to the cell-level master CP, that is, the SINR Value judgment method or Ps value judgment method. The selection of the upstream active set determination method can be set by the user. If the value of the uplink active set determination method ucUlSCActiveSetMethod is 1, the received power Ps is used to determine the active set. If the value of the uplink active set determination method ucUlSCActiveSetMethod is 0, it is further determined whether the received power Ps value of the previous UE-level primary CP is greater than or equal to Equal to the threshold value ucUlSCPsThr (default value -120dBm), if it is less than the threshold value ucUlSCPsThr, use the SINR value to determine the active set, otherwise if the received power Ps value of the previous UE-level primary CP is greater than or equal to the threshold value ucUlSCPsThr, Then use the Ps value to determine the activation set. Then, set the flag ActiveMethodFlag of the current activation set determination method. If the Ps value determination method is used, the flag value is 1, and if the SINR value determination method is used, the flag value is 0.

According to the embodiment of the present application, if the active set of the UE in the normal service phase is calculated for the first time, the UE-level master CP adopts the UE-level master CP determined when the UE is in the access phase as the previous UE-level master CP, and the received power Ps Then, the value measured by the CP when the UE is in the normal service phase is used to make the judgment.

Step S20132, setting the update time interval of the active set. The cell-level master CP calculates the active set of each UE every predetermined time ΔTime (the default value of ΔTime is 1S).

If the activation set is calculated using the Ps value judgment method, the Ps value sent by each CP needs to be obtained (here used

) to perform the calculations in the following steps.

Step S20133, perform validity judgment. Referring to FIG. 14 , FIG. 14 is a flowchart of determining the validity of the active set determination that the UE is in the normal service phase provided by another embodiment of the present application. The cell-level master CP shall set a validity timer for each CP of each UE, and perform validity maintenance. When determining the upstream active set, if no information from a certain CP is received

or

update, the validity timer of the CP is increased by ΔTime.

or

After updating, the validity timer of the CP is reset to 0, and then it is determined whether the validity timer of each CP has timed out. In one embodiment, exceeding ΔTime is considered a timeout. If some CP timers expire, before determining the active set, it is necessary to confirm whether the cell-level master CP has received the SINR value or Ps value transmitted by the UE-level master CP compared with the previous active set determination. If the SINR or Ps value of the previous UE-level primary CP is not received only once, no active set determination is performed for the UE at the current moment; if the current active set determination confirms that the measured SINR or Ps of the UE-level primary CP has been updated or If it is found that the SINR value or Ps value delivered by the previous UE-level primary CP has not been received for two consecutive times, the valid data of the UE in each CP is obtained.

or

The value of the active set is determined, and the process proceeds to the following step S20134. If the no-CP timer expires, the

or

The process proceeds to the following step S20134. If all CP timers expire, the uplink active set remains unchanged, the UE-level primary CP remains unchanged, and the downlink active set is set to be activated by all CPs.

Step S20134, determine the UE-level primary CP. Find out the validity of all CP reports for the UE

or

The maximum value of MaxAverSINR or MaxPs and the CP index, judge whether the CP index is the same as the previous UE-level primary CP, if it is the same, then go to step S20135, otherwise judge the MaxAverSINR or MaxPs of this CP and the previous UE-level primary CP The difference between the SINR value or the Ps value, if the difference is less than or equal to the threshold ucUlSCMainCPThr, keep the previously determined UE-level primary CP as the current UE-level primary CP, and if it is greater than the threshold ucUlSCMain CPThr, use MaxAverSINR or MaxPs The corresponding CP is updated to the current UE-level primary CP, and then the next step is entered. The judgment formula is:

Among them, MaxAverSIN R represents the maximum value of the effective SINR values reported by all CPs,

Represents the SINR value reported by the previous UE-level primary CP; MaxPs represents the maximum effective Ps value reported by all CPs,

Represents the Ps value reported by the previous UE-level main CP; ucUlSCMain CPThr represents the threshold value used for judging whether to replace the current UE-level main CP.

Step S20135, determine other activated CPs, including but not limited to:

a) Calculate the difference between the SINR value or Ps value reported by each CP and the SINR value or Ps value reported by the UE-level primary CP. Specifically, calculate the

or

Reported with the UE-level primary CP

or

The difference RefSINR(CPi) or RefPs(CPi) of , then enter step S20136, the calculation formula of the difference RefSINR(CPi) or RefPs(CPi) is:

Wherein, RefSINR(CPi) represents the difference between the SINR value reported by each CP and the SINR value reported by the UE-level primary CP,

Indicates the SINR value reported by the UE-level primary CP,

Represents the SINR value reported by each CP; RefPs(CPi) represents the difference between the Ps value reported by each CP and the Ps value reported by the UE-level primary CP,

Indicates the Ps value reported by the UE-level primary CP,

Indicates the Ps value reported by each CP.

b) If RefSINR(CPi) or RefPs(CPi) is less than or equal to the threshold value ucUlSCActiveSetThr for determining the uplink active set, then determine that the CPi is activated; otherwise, determine that the CPi is not active, and determine whether the threshold value ucUlSCActiveSetThr of the uplink active set is greater than or equal to The default value is 13dB, and the judgment formula is:

RefSINR(CPi) represents the difference between the SINR value reported by each CP and the SINR value reported by the UE-level primary CP, and RefPs(CPi) represents the difference between the Ps value reported by each CP and the Ps value reported by the UE-level primary CP value, ucUlSCActiveSetThr represents the threshold value for determining the upstream active set.

Step S20136, perform absolute threshold judgment of the uplink active set. Except for the UE-level primary CP, the other activated CPs will judge the absolute threshold value of Ps, and judge whether the Ps value of the CP is greater than or equal to the absolute threshold value ucUlSCPsThr (the default value is -120dBm). The remaining CPs and the UE-level primary CP form the uplink active set of the UE. The judgment formula is:

in,

Indicates the Ps value reported by other active CPs except the UE-level primary CP, and ucUlSCPsThr indicates the absolute threshold value of Ps for judging the uplink active set.

According to the embodiment of the present application, this step is the same for using the SINR value to calculate the activation set and using the Ps value to calculate the activation set.

So far, the determination of the uplink active set is basically completed. It should be noted that when the determination method for selecting the uplink active set changes, that is, the flag bit value in step S20131 changes, the following judgments can also be made:

If the last active set of the UE uses the SINR value determination method, and the current active set of the UE uses the Ps value determination method to obtain the UE-level primary CP, then determine whether the UE-level primary CP is going to change, and if so, then obtain the

value, if the previous UE-level primary CP is larger than the UE-level primary CP judged this time

is larger, then the current UE-level primary CP remains unchanged as the previously determined UE-level primary CP, and other activated CPs use the current latest determined activated CP, otherwise the result determined by using the Ps value this time is used as the latest active set, that is, the current active set. The UE-level primary CP also uses the UE-level primary CP judged by the Ps value this time.

If the last active set of the UE adopts the Ps value determination method, and the current active set of the UE adopts the SINR value determination method to obtain the UE-level primary CP, then determine whether the UE-level primary CP will change, and if so, obtain the UE in these two CPs

is larger, then the current UE-level primary CP remains the same as the previously determined UE-level primary CP, and other active CPs use the current latest determined active CP, otherwise the result of the current SINR value determination is used as the latest active set, that is, the current active set. The UE-level primary CP also uses the UE-level primary CP judged by the current SINR value.

Step S20137: Calculate the downlink equivalent power of each CP for use in determining the downlink active set. When the upstream active set is determined, the

Perform antenna normalization to obtain the downlink equivalent received power, which is used for the determination of the downlink active set. The formula is:

in,

represents the downlink equivalent received power,

Indicates the Ps measurement value reported by each CP, and UlAntNum indicates the number of uplink receiving antennas.

Referring to FIG. 15 , FIG. 15 is a flowchart of a method for determining a downlink active set by a UE in a normal service phase provided by another embodiment of the present application.

In this embodiment, the following points need to be explained:

The cell-level master CP calculates the downlink active set for each UE once every ΔTime (the default value of ΔTime can be 1S);

The downlink equivalent received power obtained in step S20137 needs to be used in the calculation of the downlink active set

Calculation;

The downlink active set only uses the valid CPs determined in step S20133 to determine the active set, and if all CPs are invalid, then all downlink CPs are activated;

When the UE is in the normal service phase, the downlink active set is determined based on the downlink reference signal power of each baseband resource, the power Ps value measured by the uplink SRS, and considering the BF gain.

In one embodiment, in step S2014, when the UE is in a normal service phase, determine the downlink active set, including but not limited to:

Step S20141, calculate the downlink user equivalent received power value of each CP, including but not limited to:

a) obtain the reference signal transmit power P _{RS of} each CP (corresponding to SS-PBCHBlockPower in the NR protocol), the number of BF effective antennas, and the number of downlink configuration antennas, and then cycle each CP;

b) Calculate the power loss of BF according to the number of BF effective antennas and the number of downlink configured antennas. The calculation formula is:

PowerGain_BF=10×log(Number of BF effective antennas/Number of downlink configured antennas)

Among them, PowerGain_BF represents the power loss of BF.

c) Convert the downlink equivalent received power

Add P _RS , PowerGain_BF(CPi) in dB to get the equivalent received power of downlink users

The calculation formula is:

in,

represents the downlink user equivalent received power of each CP,

represents the downlink equivalent received power of _{each CP, P RS} represents the reference signal transmit power of each CP, and PowerGain_BF represents the power loss of the BF of each CP.

Step S20142: Determine the downlink active set of the UE according to the calculated downlink user equivalent received power values of each CP. Select the CP with the largest downlink user equivalent received power as the UE-level primary CP, assuming that its power is

Cycle other CPs in the super cell one by one, and convert the downlink user equivalent received power of each CP

and

is compared if the CP's

and

If the difference is less than or equal to the threshold ucDlSCActiveSetThr, the CP is activated, otherwise the CP is not activated, and the activated CPs form the downlink active set of the UE,

in,

represents the maximum value of the equivalent received power of downlink users,

Represents the downlink user equivalent received power of each CP, and ucDlSCActiveSetThr represents the threshold value of UE downlink active set determination in the super cell, and the default value is 13dB.

It should be noted that if the active set of the UE is empty, full CP activation is performed, and the PDCCH for scheduling the uplink PUSCH and downlink PDSCH of the UE is also sent using the downlink active set of PDSCH.

So far, the determination of the uplink active set and the downlink active set for the UE in the access phase and the normal service phase has been completed. The determination of the active set is centrally processed by the cell-level master CP, and the cell-level master CP performs resources on the UE according to the determined active set. Schedule, and send the scheduling result information to the active CP in the active set for execution.

According to the embodiments of the present application, the resource scheduling performed on the UE includes but is not limited to:

1. PUCCH demodulation.

1) After the cell-level master CP completes the PUCCH configuration and scheduling, it sends the scheduling result information to the UE-level master CP, that is, the optimal sector;

2) After the PUCCH demodulation is completed by the optimal sector, the demodulation result is sent to the cell-level master CP.

2. Selective combined demodulation of PUSCH.

1) After the PUSCH scheduling is completed by the cell-level master CP, the scheduling result information is sent to the active CP in the active set;

2) Perform uplink PUSCH physical layer demodulation and decoding respectively by the active CPs in the active set;

3) In addition to the UE-level master CP, the activated CP sends the demodulation CRC result (A/N) to the cell-level master CP, and sends the demodulated correct bit stream to the user plane;

4) The UE-level master CP sends the demodulation CRC result (A/N) and the multiplexed UCI decoding result to the cell-level master CP, and sends the demodulated correct bit stream to the user plane,

5) The cell-level master CP collects the demodulation results of each CP in each UE's active set, and judges retransmission or new transmission. If the decoding CRC of any CP is correct, it is considered that the TTI is correctly transmitted.

6) If the UE needs to retransmit, the CPs in the active set all need to do HARQ combining of retransmissions.

3. Scheduling information exchange between downlink scheduling CPs;

1) The downlink full-CP activation is adopted for the scheduling of downlink public messages. The public messages include SSB, SIB, BCCH, and PCCH. After these messages are configured and scheduled by the cell-level master CP, they are sent by all CPs in the super cell;

2) For the downlink reference signal CSI-RS, the downlink full-CP activation is adopted, and after the configuration is completed by the cell-level master CP, it is sent by all the CPs in the super cell;

3) The downlink full CP activation is also adopted in the access phase, and the involved downlink messages and scheduling are sent by all the CPs in the super cell after the cell-level master CP completes the scheduling;

4) After the PDCCH and PDSCH are scheduled by the cell-level master CP, the active CP in the active set of the UE performs non-coherent joint transmission;

4. PDCCH and PDSCH scheduling

1) After completing the scheduling of PDCCH and PDSCH, the cell-level master CP sends the PDCCH scheduling result and PDSCH data flow to the active CP in the active set of the UE, and the cell-level master CP completes centralized scheduling and PDCCH resource management.

2) Incoherent joint transmission of PDCCH and PDSCH is performed by the CP in the active set of the UE.

In addition, referring to FIG. 16 , an embodiment of the present application further provides a base station 200 . The device includes: a memory 210 , a processor 220 , and a computer program stored in the memory 210 and running on the processor 220 . The processor 220 and the memory 210 may be connected by a bus or otherwise.

The memory, as a non-transitory computer-readable storage medium, can be configured to store non-transitory software programs and non-transitory computer-executable programs. Additionally, the memory may include high-speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, the memory may include memory located remotely from the processor, which may be connected to the processor through a network. Examples of such networks include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

It should be noted that the terminal in this embodiment may include the system architecture platform 100 in the embodiment shown in FIG. 1 , and the terminal in this embodiment and the system architecture platform 100 in the embodiment shown in FIG. 1 belong to the same Therefore, these embodiments have the same realization principle and technical effect, and will not be described in detail here.

The non-transitory software programs and instructions required to implement the resource scheduling method of the above embodiment are stored in the memory, and when executed by the processor, the scheduling method in the above embodiment is executed, for example, the method in FIG. 2 described above is executed Steps S101 to S103, method steps S1011 to S1012 in FIG. 3, method steps S1021 to S1025 in FIG. 4, method steps S1026 to S1028 in FIG. 5, method steps S1029 to S10212 in FIG. method steps S10261 to S10262 in FIG. 8 , method steps S10263 to S10264 in FIG. 8 , method steps S201 to S203 in FIG. 9 , method steps S2011 to S2014 in FIG. 10 , method steps S20111 to steps in FIG. 11 S201113, method steps S20131 to S20137 in FIG. 12 , and method steps S20141 to S20142 in FIG. 15 .

The embodiments of the present application include: separately acquiring the channel quality measurement information between each cell segment CP in the super cell and the user terminal UE; determining an active set from all CPs in the super cell according to the channel quality measurement information; The CP performs resource scheduling on the UE. According to the solution provided by the embodiment of the present application, by introducing the concept of active set, according to the channel quality measurement information between the CP of each cell segment and the user terminal UE, a set of CPs with the best channel quality is selected to provide services for it, and all CPs are timed The channel quality measurement information is reported to update the active set. For inactive CPs, power consumption is low, saving air interface resources and network processing resources. For active CPs, it can ensure good signal quality for UEs and improve user experience.

The apparatus embodiments described above are only illustrative, and the units described as separate components may or may not be physically separated, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

In addition, an embodiment of the present application also provides a computer-readable storage medium, where the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are executed by a processor or controller, for example, by the above-mentioned Executed by a processor in the embodiment of the terminal, the above-mentioned processor can execute the resource scheduling method in the above-mentioned embodiment, for example, execute the above-described method steps S101 to S103 in FIG. 2 and method steps S1011 to S1012 in FIG. 3 . , method steps S1021 to S1025 in FIG. 4 , method steps S1026 to S1028 in FIG. 5 , method steps S1029 to S10212 in FIG. 6 , method steps S10261 to S10262 in FIG. 7 , method steps in FIG. 8 S10263 to S10264, method steps S201 to S203 in FIG. 9, method steps S2011 to S2014 in FIG. 10, method steps S20111 to S201113 in FIG. 11, method steps S20131 to S20137 in FIG. 12, and The method steps S20141 to S20142 in FIG. 15 .

Those of ordinary skill in the art can understand that all or some of the steps and systems in the methods disclosed above can be implemented as software, firmware, hardware, and appropriate combinations thereof. Some or all physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit . Such software may be distributed on computer-readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). As is known to those of ordinary skill in the art, the term computer storage medium includes both volatile and non-volatile data embodied in any method or technology arranged to store information, such as computer readable instructions, data structures, program modules or other data. volatile, removable and non-removable media. Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cartridges, magnetic tape, magnetic disk storage or other magnetic storage devices, or may Any other medium that is configured to store the desired information and that can be accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and can include any information delivery media, as is well known to those of ordinary skill in the art .

The above is a specific description of some implementations of the present application, but the present application is not limited to the above-mentioned embodiments. Those skilled in the art can also make various equivalent modifications or replacements without departing from the scope of the present application. These equivalents Variations or substitutions of the above are all included within the scope defined by the claims of the present application.

Claims

A scheduling method for a hypercell, comprising:

respectively acquiring channel quality measurement information between each cell segment CP in the super cell and the user terminal UE;

determining an active set from all CPs in the hypercell according to the channel quality measurement information;

Resource scheduling is performed on the UE by using the CP in the active set.
The method according to claim 1, wherein the acquiring, respectively, the channel quality measurement information between each cell segment CP in the super cell and the user terminal UE comprises:

When the UE is in the access phase, the physical random access channel PRACH quality measurement information between each CP in the super cell and the UE is acquired.
The method according to claim 2, wherein the PRACH channel quality measurement information includes a first signal-to-noise ratio (SINR) value, the active set includes an uplink active set, and the channel quality measurement information from the super cell is based on the channel quality measurement information. Active sets are identified in all CPs within, including:

Determine that the CP corresponding to the first SINR value with the largest numerical value is the first primary CP;

Comparing the first SINR values corresponding to the remaining CPs in the super cell except the first primary CP with the first SINR values of the first primary CP, respectively, to determine that the SINR difference is less than or equal to the first uplink activation The corresponding CP of the threshold value is the active CP;

It is determined that the set of the first primary CP and the active CP is the uplink active set.
The method according to claim 3, wherein the PRACH channel quality measurement information further comprises a first received power Ps value, and the active set is determined from all CPs in the super cell according to the channel quality measurement information, Also includes:

Comparing the first Ps values corresponding to the remaining active CPs in the uplink active set except the first primary CP with the second uplink activation threshold value respectively, and comparing the first Ps value to be less than or equal to the second uplink activation threshold The CP corresponding to the activation threshold value is eliminated from the upstream activation set.
The method according to claim 3, wherein the active set further comprises a downlink active set, the determining an active set from all CPs in the super cell according to the channel quality measurement information, further comprising:

A set of all CPs in the super cell is determined as the downlink active set.
The method according to claim 1, wherein the acquiring, respectively, the channel quality measurement information between each cell segment CP in the super cell and the user terminal UE comprises:

When the UE is in a normal service phase, the uplink physical shared channel PUSCH quality measurement information or channel sounding reference signal SRS between each CP and the UE in the super cell is acquired.
The method according to claim 6, wherein the PUSCH channel quality measurement information includes a second SINR value, the SRS includes a second Ps value, the active set includes an uplink active set, and the channel quality measurement information according to the channel quality measurement The information determines the active set from all CPs in the hypercell, including:

Determine the CP corresponding to the second SINR value with the largest value as the second primary CP, and associate the second SINR values corresponding to the remaining CPs in the super cell except the second primary CP with the second primary CP respectively Compared with the second SINR value, determine that the corresponding CP whose SINR difference is less than or equal to the third uplink activation threshold value is the active CP, or, determine that the CP corresponding to the second Ps value with the largest value is the second main CP, and set the The second Ps values corresponding to the remaining CPs in the super cell except the second primary CP are respectively compared with the second Ps values of the second primary CP, and it is determined that the Ps difference is less than or equal to the fourth uplink activation gate The corresponding CP of the limit is the active CP;

It is determined that the set of the second primary CP and the active CP is the uplink active set.
The method according to claim 7, wherein the determining that the CP corresponding to the second SINR value with the largest numerical value is the second primary CP comprises:

Compare the currently obtained second SINR value with the largest numerical value with the second SINR value corresponding to the previously determined second primary CP, and when the SINR difference is less than or equal to the first preset threshold value, keep the previously determined second SINR value. The second main CP is the current second main CP.
The method according to claim 8, wherein the determining that the CP corresponding to the second SINR value with the largest numerical value is the second primary CP, further comprising:

Compare the currently obtained second SINR value with the largest numerical value with the second SINR value corresponding to the previously determined second main CP, and when the SINR difference is greater than the first preset threshold value, compare the currently obtained value with the largest value. The CP corresponding to the second SINR value is updated to a new second primary CP.
The method according to claim 7, wherein the determining that the CP corresponding to the second Ps value with the largest numerical value is the second primary CP comprises:

Compare the currently obtained second Ps value with the largest value with the second Ps value corresponding to the previously determined second main CP, and when the Ps difference is less than or equal to the second preset threshold, keep the previously determined second Ps value. The second main CP is the current second main CP.
The method according to claim 10, wherein the determining that the CP corresponding to the second Ps value with the largest numerical value is the second primary CP, further comprising:

Compare the currently obtained second Ps value with the largest value with the second Ps value corresponding to the previously determined second main CP, and when the Ps difference is greater than the first preset threshold value, compare the currently obtained value with the largest value. The CP corresponding to the second Ps value is updated to a new second primary CP.
The method according to claim 7, wherein the determining an active set from all CPs in the super cell according to the channel quality measurement information further comprises:

Comparing the second Ps values corresponding to the remaining active CPs in the uplink active set except the second main CP with the fifth uplink active threshold value, respectively, and comparing the second Ps value to be smaller than the fifth uplink active threshold The CP corresponding to the limit value is eliminated from the upstream active set.
The method according to claim 7, wherein the active set comprises a downlink active set, the determining an active set from all CPs in the super cell according to the channel quality measurement information, further comprising:

Calculate the downlink user equivalent received power value of each CP according to the second SINR value or the second Ps value of each CP;

determining that the CP corresponding to the maximum downlink user equivalent received power value is the third primary CP;

Comparing the downlink user equivalent received power values corresponding to the remaining CPs in the super cell except the third primary CP with the downlink user equivalent received power values of the third primary CP, respectively, to determine the downlink user equivalent The corresponding CP whose received power value difference is less than the downlink activation threshold value is an activated CP;

It is determined that the set of the third primary CP and the active CP is the downlink active set.
The method of claim 5 or 13, further comprising one of the following:

Utilize the CP in the uplink active set to receive uplink data sent by the UE;

Send downlink data to the UE by using the CP in the downlink active set;

The channel quality measurement information between the inactive CP and the UE is measured by using the inactive CP.
A base station, comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor implements the program according to any one of claims 1 to 14 when the processor executes the program scheduling method.
A computer-readable storage medium storing computer-executable instructions, wherein the computer-executable instructions are used to execute the scheduling method according to any one of claims 1 to 14.