CN113873665A

CN113873665A - Scheduling method, base station, and computer-readable storage medium

Info

Publication number: CN113873665A
Application number: CN202010618053.5A
Authority: CN
Inventors: 句帅
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2021-12-31
Also published as: WO2022001544A1

Abstract

The application discloses a scheduling method, a base station and a computer readable storage medium. The scheduling method comprises the following steps: respectively acquiring channel quality measurement information between each cell fragment CP and User Equipment (UE) in the super cell; determining an active set from all CPs in the super cell according to the channel quality measurement information; and scheduling resources for the UE by using the CP in the active set. According to the scheme provided by the embodiment of the application, the resource is saved, meanwhile, the good signal quality is provided for the UE in the super cell range, and the user experience is improved.

Description

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

Technical Field

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

Background

A super cell is a cell formed by combining a plurality of conventional cells, each conventional cell becomes a component of the super cell, called a cell partition cp (cell portion), and the original cells share resources such as frequency spectrum, time domain, etc., all algorithms and cell parameters are consistent, and scheduling is unified, so that a user terminal (UE) still looks like a cell, and the user cannot see the concept of sector merging. The super cell has the advantages of wide wireless network coverage, low-frequency cell switching signaling and the like.

When the UE is in the super cell range, if the method of scheduling all CPs is adopted, the base station is overloaded, consumes a large amount of air interface resources and processing resources of the network, and is not favorable for power control; when the UE is in a mobile state, the quality of the CP channel farther from the UE is poor, and if the measurement report reported by the CP is taken as a scheduling basis, the UE traffic is reduced, which affects the user experience.

Disclosure of Invention

The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.

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

In another aspect, an embodiment of the present application provides a scheduling method, for a super cell, including:

respectively acquiring channel quality measurement information between each cell fragment CP and User Equipment (UE) in the super cell;

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

and scheduling resources for the UE by using the CP in the active set.

On the other hand, the embodiment of the present application further provides a base station, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and when the processor executes the program, the scheduling method is implemented.

In still another aspect, an embodiment of the present application further provides a computer-readable storage medium, which stores computer-executable instructions for performing the scheduling method.

The embodiment of the application comprises the following steps: respectively acquiring channel quality measurement information between each cell fragment CP and User Equipment (UE) in the super cell; determining an active set from all CPs in the super cell according to the channel quality measurement information; and scheduling resources for the UE by using the CP in the active set. According to the scheme provided by the embodiment of the application, by introducing the concept of the active set, according to the channel quality measurement information between each cell segment CP and the user terminal UE, the CP set with the best channel quality is selected to provide service for the CP set, all CPs report the channel quality measurement information at regular time to update the active set, for the unactivated CP, the power consumption is low, air interface resources and network processing resources are saved, for the activated CP, good signal quality can be guaranteed for the UE, and user experience is improved.

Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the example serve to explain the principles of the invention and not to limit the invention.

Fig. 1 is a schematic frame diagram of a system architecture platform for executing a scheduling method for a super cell according to an embodiment of the present application;

fig. 2 is a general flowchart of a scheduling method for a super cell according to an embodiment of the present application;

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

fig. 4 is a flowchart of a method for determining an active set when a UE is in an access phase according to an embodiment of the present application;

fig. 5 is a flowchart of a method for determining an uplink active set by a UE in a normal service phase according to an embodiment of the present application;

fig. 6 is a flowchart of a method for determining a downlink active set when a UE is in a normal service phase according to an embodiment of the present application;

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

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

fig. 9 is a general flowchart of a scheduling method for a super cell according to another embodiment of the present application;

fig. 10 is a flowchart of a method for determining an active set of a UE according to 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 according to another embodiment of the present application;

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

fig. 13 is a flowchart illustrating an active set decision method for a UE in a normal service phase according to another embodiment of the present application;

fig. 14 is a flowchart of an active set judgment validity determination of a UE in a normal service phase according to another embodiment of the present application;

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

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It should be noted that although functional blocks are partitioned in a schematic diagram of an apparatus and a logical order is shown in a flowchart, in some cases, the steps shown or described may be performed in a different order than the partitioning of blocks in the apparatus or the order in the flowchart. The terms "first," "second," and the like in the description, in the claims, or in the drawings described above, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

A super cell is a cell formed by combining a plurality of conventional cells, each conventional cell becomes a component of the super cell, called cp (cell portion), and the original cells share resources such as frequency spectrum, time domain, etc., all algorithms and cell parameters are consistent, and scheduling is unified, so that a user terminal (UE) can see that the super cell is also a cell, and the user cannot see the concept of sector merging. The super cell has the advantages of wide wireless network coverage, low-frequency cell switching signaling and the like.

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 scheduling efficiency of the super cell and optimize user experience.

According to the embodiment in the application, each cell in a super cell is called a CP and corresponds to a scheduled sector; each super cell has a main CP, called a cell-level main CP, for summarizing scheduling of the super cells, etc., which is defined according to hardware locations, etc. after the super cells are assembled, and is fixed and unchangeable. In addition, each UE has a UE-level main CP, which is defined according to uplink and downlink signal strength of the UE, is not fixed, and is divided into an uplink UE-level main CP and a downlink UE-level main CP, a CP within a certain signal strength threshold value is called an active set, and is divided into an uplink active set and a downlink active set, which correspond to multiple scheduled sectors.

The UE in the embodiment of the present application may refer to a user terminal in a super cell range, for example, a handheld device with a wireless communication function, including a mobile phone, a tablet, a notebook circuit, and the like, which is inserted into a sim card or a terminal adopting e-sim technology, and also includes a computing device, a multimedia device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal in a 5G network, and the like.

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the embodiments described below are some, but not all embodiments of the present invention.

Referring to fig. 1, fig. 1 is a schematic diagram of a system architecture platform 100 for executing a scheduling method for a super cell according to an embodiment of the present application, where 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 super cell 110 and a UE 120 residing within the super cell 110, wherein the super cell 110 includes a cell-level main CP 111 and a plurality of other CPs 112, and the cell-level main CP 111 is configured to: respectively acquiring channel quality measurement information between each CP and UE in the super cell; determining an active set from all CPs in the super cell according to the channel quality measurement information; and scheduling resources for the UE by using the CP in the active set.

As shown in fig. 1, the cell-level master CP 111 includes a master scheduling module 101, configured to receive channel status reports from the secondary scheduling modules 102 of other respective CPs 112, where the channel status reports include channel quality measurement information to determine an active set, and the master scheduling module 101 is further configured to perform overall scheduling of the super cell, and send scheduling result information to the active CPs in the determined active set, so as to perform resource scheduling on the UE. Each of the other CPs 112 includes an auxiliary scheduling module 102 and a reporting module 103, where the auxiliary scheduling module 102 is configured to receive the channel quality measurement information from the reporting module 103, perform unit conversion, remove an abnormal value, and filter processing on a measurement value in the channel quality measurement information, generate a channel state report, and upload the channel state report to the main scheduling module 101 of the cell-level main CP 111, and the reporting module is configured to report the channel quality measurement information to the auxiliary scheduling module 102 of each CP. In addition, the cell-level main CP 111 and the plurality of other CPs 112 each include a transmission module 104 for communication between the main scheduling module 101 and the auxiliary scheduling module 102, and information carried by the transmission module includes a channel status report, active set information, scheduling result information, and the like.

The system architecture platform 100 and the application scenario described in the embodiment of the present invention are for more clearly illustrating the technical solution of the embodiment of the present invention, and do not constitute a limitation to the technical solution provided in the embodiment of the present invention, and it is known to those skilled in the art that the technical solution provided in the embodiment of the present invention is also applicable to similar technical problems with the evolution of the system architecture platform 100 and the appearance of new application scenarios.

Those skilled in the art will appreciate that the system architecture platform 100 shown in FIG. 1 does not constitute a limitation on embodiments of the invention, and may include more or fewer components than shown, or some components in combination, or a different arrangement of components.

Based on the system architecture platform 100, various embodiments of the scheduling method of the present invention are presented below.

Referring to fig. 2, fig. 2 is a general flowchart of a scheduling method for a super cell according to an embodiment of the present application, where the scheduling method includes, but is not limited to:

step S101, respectively obtaining channel quality measurement information between each cell segment CP and user equipment UE in the super cell.

Channel quality information includes, but is not limited to: PRACH (Physical Random Access Channel) quality measurement information, PUSCH (Physical Uplink Shared Channel) quality measurement information, or quality measurement information of other channels, and the present embodiment is not particularly limited thereto.

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

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

Step S103, the CP in the active set is used for scheduling resources for the UE.

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

1. when the UE is in an access stage, all CPs utilize the PRACH to measure the channel quality;

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

3. when the UE is in an access stage or a normal service stage, calculation is carried out according to the measurement result of the UE-level main CP, such as calculation of an uplink TAC (Tracking Area Code), calculation of power control parameters and the like;

4. when the UE is in an access phase or a normal service phase, an Uplink PUCCH (Physical Uplink Control Channel) is configured by a cell-level main CP, and the UE-level main CP performs reception demodulation;

5. when the UE is in an access stage or a normal service stage, the uplink PUSCH data reception is designed to be selective combination demodulation, and the principle is that the demodulation decoding of the UE is carried out on the CP of the UE in an active set. As long as the decoding CRC (Cyclic Redundancy Check) of any CP is correct, it is considered that the TTI (Transmission Time Interval) is correctly transmitted, and the base station can acquire a correct uplink bit stream.

Further, the downlink scheduling includes, but is not limited to:

1. when UE is in an access stage, downlink full CP activation is adopted for scheduling of downlink common messages, the common messages comprise SSB, SIB, BCCH and PCCH, and the messages are sent by all CPs in a super cell after configuration scheduling is completed by a cell-level main CP;

2. when the UE is in an access stage, downlink full CP activation is adopted for a downlink reference signal CSI-RS, and after configuration scheduling is completed by a cell-level main CP, all CPs in a super cell are used for transmitting;

3. when the UE is in a normal service phase, after the cell-level master CP completes scheduling of a PDCCH (Physical Downlink Control Channel) and a PDSCH (Physical Downlink Shared Channel), the scheduling result of the PDCCH and the data stream of the PDSCH are sent to an active CP in the UE active set, and the active CP in the UE active set performs non-coherent joint sending on the PDCCH and the PDSCH.

According to the scheme provided by the embodiment of the application, by introducing the concept of the active set, according to the channel quality measurement information between each CP and the UE, the CP set with the best channel quality is selected to provide service for the CP set, all CPs report the channel quality measurement information at regular time to update the active set, for the CP which is not activated, the power consumption is low, air interface resources and network processing resources are saved, for the active CP, good signal quality can be guaranteed for the UE, and user experience is improved.

The specific steps for determining the active set of the UE when the UE is in the access phase are described further below.

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 according to an embodiment of the present application. In an embodiment, in step S101, respectively obtaining channel quality measurement information between each cell segment CP and the user equipment UE in the super cell may include:

step S1011, when the UE is in the access phase, obtaining PRACH quality measurement information of a 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 Interference plus Noise Ratio (SINR) 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 according to an embodiment of the present application. In an embodiment, the step S102 of determining an active set from all CPs in the super cell according to the channel quality measurement information may include:

in step S1021, the CP corresponding to the first SINR value having the largest value is determined as the first master CP. The first main CP is a UE-level main CP.

Step S1022, comparing the first SINR values corresponding to the remaining CPs in the super cell except the first main CP with the first SINR values of the first main CP, respectively, and determining the CP corresponding to the SINR difference value smaller than or equal to the first uplink activation threshold value as the activated CP. The first uplink activation threshold may be 13 dB.

In step S1023, a collection of the first master CP and the active CP is determined as an uplink active set.

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

step S1024, comparing the first Ps values corresponding to the remaining activated CPs in the uplink activation set except the first main CP with a second uplink activation threshold value respectively, and removing the corresponding CPs of which the first Ps values are less than or equal to the second uplink activation threshold value from the uplink activation set. The second uplink activation threshold may be-120 dBm.

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

step S1025 determines the collection of all CPs in the super cell as the downlink active set. That is, when the UE is in the access phase, downlink full CP activation is used for scheduling downlink common messages, where the common messages include SSB, SIB, BCCH, and PCCH, and these messages are sent by all CPs in the super cell after the cell-level main CP completes configuration scheduling; and for the downlink reference signal CSI-RS, downlink full CP activation is adopted, and after the cell-level main CP completes configuration scheduling, all CPs in the super cell transmit the downlink reference signal CSI-RS.

The specific steps for determining the active set of the UE when the UE is in the normal traffic phase are described further below.

Referring to fig. 3, in an embodiment, in step S101, obtaining channel quality measurement information between each cell segment CP in the super cell and the user equipment UE respectively may further include:

step S1012, when the UE is in a normal service phase, acquiring measurement information of the PUSCH quality of the uplink physical shared channel between each CP and the UE in the super cell or SRS. 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 according to an embodiment of the present application. In an embodiment, the step S102 of determining an active set from all CPs in the super cell according to the channel quality measurement information may further include:

step S1026, determining the CP corresponding to the second SINR value with the largest value as a second main CP, comparing the second SINR values corresponding to the remaining CPs in the super cell except for the second main CP with the second SINR values of the second main CP, determining the CP corresponding to the SINR difference value smaller than or equal to the third uplink activation threshold value as an activated CP, or determining the CP corresponding to the second Ps value with the largest value as a second main CP, comparing the second Ps values corresponding to the remaining CPs in the super cell except for the second main CP with the second Ps value of the second main CP, and determining the CP corresponding to the Ps difference value smaller than or equal to the fourth uplink activation threshold value as an activated CP. The second master CP is a UE-level master CP, the third uplink activation threshold may be 13dB, and the fourth uplink activation threshold may be-120 dBm.

Step S1027, determining a collection of the second master CP and the active CP as an uplink active set.

step S1028, comparing the second Ps values corresponding to the remaining activated CPs in the uplink activation set except the second main CP with a fifth uplink activation threshold value, and removing the CPs with the second Ps values smaller than the fifth uplink activation threshold value from the uplink activation set. The fifth uplink activation threshold may be-120 dBm.

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 according to 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 when a certain preset threshold value is met. Therefore, in step S1026, determining the CP corresponding to the second SINR value with the largest value as the second main CP may further include:

step S10261, comparing the second SINR value with the maximum value obtained currently with the second SINR value corresponding to the second main CP determined last time, and when the SINR difference value is smaller than or equal to a first preset threshold value, keeping the second main CP determined last time as the current second main CP, namely, not updating the second main CP;

step S10262, comparing the second SINR value with the largest value obtained currently with the second SINR value corresponding to the second main CP determined last time, and updating the CP corresponding to the second SINR value with the largest value obtained currently to be the new second main CP when the SINR difference is greater than the first preset threshold.

Therefore, the method can be beneficial to avoiding frequent switching of the main CP, 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 according to 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 when a certain preset threshold value is met. Therefore, in step S1026, determining the CP corresponding to the second Ps value with the largest value as the second main CP may further include:

step S10263, comparing the second Ps value with the maximum value obtained currently with the second Ps value corresponding to the second main CP determined last time, and when the Ps difference value is smaller than or equal to a second preset threshold value, keeping the second main CP determined last time as the current second main CP, namely not updating the second main CP;

step S10264, comparing the second Ps value with the largest value obtained currently with the second Ps value corresponding to the second main CP determined last time, and updating the CP corresponding to the second Ps value with the largest value obtained currently to be the new second main CP when the Ps difference is greater than the first preset threshold.

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 according to an embodiment of the present application. In an embodiment, the step S102 of determining an 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 receiving power value of each CP according to the second SINR value or the second Ps value of each CP;

step S10210, determining a CP corresponding to the maximum downlink user equivalent received power value as a third main CP, wherein the third main CP is also a UE-level main CP;

step S10211, comparing the equivalent receiving power values of the downlink users corresponding to the remaining CPs in the super cell except the third main CP with the equivalent receiving power values of the downlink users of the third main CP, and determining the CP corresponding to the difference value of the equivalent receiving power values of the downlink users smaller than the downlink activation threshold value as the activated CP.

Step S10212, determining a third master CP and an active CP aggregate as a downlink active set.

To this end, the determination of the active set is performed in a centralized manner by the cell-level main CP after the uplink active set and the downlink active set of the UE in the access phase and the normal service phase are determined, the cell-level main CP performs resource scheduling on the UE according to the determined active set, and sends scheduling result information to the CP in the active set for execution, and the method includes one of the following steps: receiving uplink data sent by the UE by using a CP in an uplink active set; sending downlink data to the UE by using the CP in the downlink active set; channel quality measurement information between the inactive CP and the UE is measured using the inactive CP.

In order to more clearly describe the specific step flow of the resource scheduling method in the foregoing embodiments, the following description is made by using specific embodiments.

Referring to fig. 9, fig. 9 is a general flowchart of a scheduling method for a super cell according to an embodiment of the present application, where the scheduling method includes, but is not limited to:

step S201, determining an active set of the UE.

In this embodiment, the cell-level primary CP periodically updates the UE-level primary CP (i.e. the best sector) and the active set according to different service phases of the UE and channel quality measurement information between the CP and the UE in the super cell.

Step S202, the UE is scheduled by the active set.

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

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

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

Referring to fig. 10, fig. 10 is a flowchart of a method for determining an active set of a UE according to an embodiment of the present application, where step S201 includes:

step S2011, when the UE is in an access stage, an uplink active set is judged;

step S2012, when the UE is in the access phase, determining a downlink active set;

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

step S2014, when the UE is in a normal service phase, determining a 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 according to another embodiment of the present application. In an embodiment, in step S2011, when the UE is in the access phase, the uplink active set is determined, and the specific steps include, but are not limited to:

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

step S20112, the cell-level main CP gathers PRACH detection results at the same air interface moment according to PreamblelID;

step S20113, the uplink active set is determined by using the relative threshold of SINR and the absolute threshold of Ps, and the specific method includes:

a) and acquiring the SINR value corresponding to the same PreambleiD at the same time by the cell-level main CP, and selecting the CP with the maximum SINR value as the UE-level main CP.

b) Comparing the SINR value measured by each CP under the same PreambbleID with the SINR value measured by the UE-level main CP, activating the CP when the following conditions are met, and not activating the CP when the following conditions are not met, wherein the judgment formula is as follows:

wherein, the SINR_Msg1,MainCPRepresents the SINR measurement of the UE-level primary CP,

the SINR measurement value of each CP is represented, and uculsacctivetthr represents a relative SINR threshold value for determining an uplink active set, which may be 13dB by default.

It should be noted that before the UE accesses, the base station does not know the location of the UE, so each physical cell in the super cell has the same policy as a normal cell, and each CP periodically transmits SSB (Synchronization Signal Block) in an omnidirectional manner to wait for the UE to access.

In an embodiment, in step S2012, when the UE is in the access phase, the determining the downlink active set includes: when the UE is in the access phase, all CPs in the super cell form a downlink active set, that is, all CPs are activated by using a policy of joint transmission of 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 according to another embodiment of the present application. In an embodiment, in step S2013, when the UE is in a normal service stage, the uplink active set is determined, and the specific steps include, but are not limited to:

step S20131, the method for determining the uplink active set is selected. Referring to fig. 13, fig. 13 is a flowchart illustrating selection of an active set determination method for a UE in a normal service phase according to another embodiment of the present application. According to the embodiment of the present application, when the UE is in a normal service phase, the determination of the uplink active set may adopt an SINR value or a Ps value measured by a PUSCH/SRS transmitted by all CPs in the super cell to the cell-level master CP, that is, an SINR value determination method or a Ps value determination method. The selection of the uplink active set decision method may be set by the user. If the uplink active set determining method uculsticattmethodd value is 1, determining the active set by using the received power Ps, if the uplink active set determining method uculsticattmethodd value is 0, further determining whether the received power Ps value of the previous UE-level main CP is greater than or equal to a threshold value uculscpthr (default value-120 dBm), if the received power Ps value is less than the threshold value uculscpthr, determining the active set by using the SINR value, otherwise, if the received power Ps value of the previous UE-level main CP is greater than or equal to the threshold value uculscpthr, determining the active set by using the Ps value. Then, setting the flag ActiveMethodFlag of the active set judgment method, if the Ps value judgment method is adopted, the flag value is 1, and if the SINR value judgment method is adopted, the flag value is 0.

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

In step S20132, an update interval of the active set is set. The cell-level main CP calculates the active set of each UE every predetermined Time Δ Time (default value of Δ Time is 1S), and if the active set is calculated by using the SINR value determination method, the SINR value sent by each CP needs to be acquired (used herein)

That is, the Ps value determination method is used) to calculate the active set, and if the Ps value determination method is used to calculate the active set, the Ps value transmitted by each CP needs to be acquired (used here as the Ps value determination method)

Represented) was calculated in the following procedure.

In step S20133, validity determination is performed. Referring to fig. 14, fig. 14 is a flowchart of determining validity of an active set decision when a UE is in a normal traffic phase according to another embodiment of the present application. The cell-level main CP sets a validity timer for each CP of each UE and performs validity maintenance. When making up the decision of the up active set, if not receiving a CP

Or

Updating, the validity timer of the CP is added with delta Time, if the validity timer of a certain CP is added

Or

And updating, resetting the validity timer of the CP to be 0, and then judging whether the validity timer of each CP is overtime. In one embodiment, exceeding Δ Time is considered a timeout. If the timer of the partial CP is overtime, before the active set is judged, whether the cell-level main CP receives the SINR value or the Ps value transmitted by the UE-level main CP or not is confirmed compared with the previous active set judgment. If the SINR value or the Ps value of the UE-level main CP of the previous time is not received only once, the active set judgment is not carried out on the UE at the current time; if the current active set judges that the measured SINR or Ps of the UE-level main CP is updated or found to be not received the SINR value or Ps value transmitted by the previous UE-level main CP for two times, the effective of the UE in each CP is obtained

Or

The value is used to determine the active set, and the process proceeds to step S20134 below. If the CP-less timer times out, then it will be based on all CPs

Or

The process proceeds to step S20134 below. If all CP timers are overtime, the active set remains unchanged, the UE level master CP remains unchanged, and downlink all CPs are activated by default.

Step S20134, the UE-level master CP is determined. Finding validity of all CP reports for UE

Or

Judging whether the CP index is the same as the previous UE-level main CP, if so, entering step S20135, otherwise, judging the difference value between the MaxAverr SINR or the MaxPs of the CP and the SINR value or the Ps of the previous UE-level main CP, if the difference value is less than or equal to a threshold value ucUlMiainCPThr, keeping the previously determined UE-level main CP as the current UE-level main CP, if the difference value is greater than the threshold value ucUlMiainCPThr, updating the CP corresponding to the MaxAverr SINR or the MaxPs as the current UE-level main CP, and then entering the next step to judge that the formula is;

wherein, MaxAvERSINR represents the maximum value of effective SINR values reported by all CPs,

representing the SINR value reported by the previous UE level main CP; MaxPs represents the maximum value of the effective Ps values reported by all CPs,

expressing the Ps value reported by the previous UE-level main CP; uculscnaincptthr denotes a threshold value for determining whether to replace the current UE-level main CP.

Step S20135, determining other active CPs, including but not limited to:

a) and calculating the difference value between the SINR value or the Ps value reported by each CP and the SINR value or the Ps value reported by the UE-level main CP. Specifically, calculating each CP report

Or

Reported with the UE-level main CP

Or

Then step S20136 is performed, and the calculation formula of the difference value 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 main CP,

represents the SINR value reported by the UE-level master CP,

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

the Ps value reported by the UE-level master CP is represented,

and the Ps value reported by each CP is represented.

b) If RefSINR (CPi) or RefPs (CPi) is less than or equal to the threshold value ucUlSCActiveSetThr for judging the uplink active set, judging the CPi to be activated, otherwise judging the CPi not to be activated, judging the default value of the threshold value ucUlSCActiveSetThr for the uplink active set to be 13dB, and judging the formula as follows:

refsinr (cpi) represents a difference between an SINR value reported by each CP and an SINR value reported by the UE-level main CP, refps (cpi) represents a difference between a Ps value reported by each CP and a Ps value reported by the UE-level main CP, and uculsscactivesetthr represents a threshold value for determining an uplink active set.

And step S20136, absolute threshold judgment of the uplink active set is carried out. And (3) judging the absolute threshold value of Ps by other activated CPs except the UE-level main CP, judging whether the Ps value of the CP is greater than or equal to the absolute threshold value ucUlSCPsThr (the default value is-120 dBm), if the conditions are not met, removing the CP from the activated CP, and forming an uplink activated set of the UE by the remaining CP and the UE-level main CP. The judgment formula is as follows:

wherein the content of the first and second substances,

and the Ps values reported by other activated CPs except the UE-level main CP are represented, and the ucullscpsthr represents the Ps absolute threshold value for determining the uplink activated set.

According to an embodiment of the present application, this step is the same for calculating the active set using the SINR values and calculating the active set using the Ps values.

Up to this point, the determination of the uplink active set is basically completed, and it should be noted that when the determination method for selecting the uplink active set is changed, that is, the flag bit value in step S20131 is changed, the following determination may be made:

if the last active set of the UE adopts the SINR value judgment method and the active set of the UE at this time adopts the Ps value judgment method to obtain the UE-level main CP, judging whether the UE-level main CP needs to be changed, if so, obtaining the main CP at the two CPs

Value if the previous UE-level main CP is larger than the currently judged UE-level main CP

If the current UE-level main CP is larger than the current UE-level main CP, the current UE-level main CP is kept unchanged from the UE-level main CP judged at the previous time, other activated CPs use the currently latest judged activated CP, otherwise, the result of the judgment of the Ps value adopted at the current time is used as the latest activated set, namely, the current UE-level main CP also uses the UE-level main CP judged at the current time by the Ps value.

If the last active set of the UE adopts a Ps value judging method and the active set of the UE at this time adopts an SINR value judging method to obtain the UE-level main CP, judging whether the UE-level main CP needs to be changed, if so, obtaining the CP values of the UE at the two CPs

If the current SINR value is larger than the preset SINR value, the UE-level main CP is kept unchanged from the UE-level main CP judged at the previous time, other activated CPs use the currently latest judged activated CP, otherwise, the result of the current SINR value judgment is used as the latest activated set, namely, the current UE-level main CP also uses the UE-level main CP judged by the current SINR value.

Step S20137, calculating the downlink equivalent power of each CP to be used for determining the downlink active set. When the uplink active set is determined to be finished, the method will be used

Antenna normalization is carried out to obtain downlink equivalent received power, and the downlink equivalent received power is used for judging a downlink active set, and the formula is as follows:

wherein the content of the first and second substances,

which represents the equivalent received power of the downlink,

and the Ps measurement value reported by each CP is represented, and the UlAntNum represents 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 according to another embodiment of the present application.

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

the cell-level main CP calculates a downlink active set for each UE every other delta Time (the default value of the delta Time can be 1S);

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

Calculating;

the downlink active set only adopts the effective CP judged in the step S20133 to judge the active set, and if all the CPs are invalid, the downlink full CP is activated;

when the UE is in a normal service stage, the downlink activation set performs judgment based on the downlink reference signal power of each baseband resource and the power Ps value measured by the uplink SRS and considering BF gain.

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

step S20141, calculating the downlink user equivalent receiving power value of each CP, including but not limited to:

a) obtaining reference signal transmitting power P of each CP_RS(corresponding to SS-PBCBlockPower in NR protocol), BF effective antenna number and downlink configuration antenna number, and then circulating each CP;

b) calculating the BF power loss according to the BF effective antenna number and the downlink configuration antenna number, wherein the calculation formula is as follows:

PowerGain _ BF 10 × log (BF effective antenna number/downlink configuration antenna number)

Wherein PowerGain _ BF represents the power loss of BF.

c) Equivalent downlink received power

And P_RSThe power gain _ BF (CPi) is subjected to dB addition to obtain the equivalent received power of the downlink user

The calculation formula is as follows:

wherein the content of the first and second substances,

indicating the downlink user equivalent received power of each CP,

indicating the downlink equivalent received power, P, of each CP_RSDenotes the reference signal transmission power of each CP, and PowerGain _ BF denotes the power loss of BF of each CP.

Step S20142, determining a downlink active set of the UE according to the calculated downlink user equivalent received power value of each CP. Selecting the CP with the maximum equivalent received power of the downlink user as the UE-level main CP, and assuming that the power of the CP is

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

And

making a comparison if the CP is

And

if the difference is less than or equal to the threshold value ucDlSCActiveSetThr, the CP is activated, otherwise, the CP is not activated, the activated CP forms a downlink activation set of the UE,

wherein the content of the first and second substances,

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

the equivalent receiving power of downlink users of each CP is represented, the ucDlSCActiveSetThr represents a threshold value for judging a UE downlink active set in a super cell, the threshold value is an A-type parameter, and the default value is 13 dB.

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

And the cell-level main CP performs resource scheduling on the UE according to the determined activation set and sends scheduling result information to the activation CP in the activation set for execution.

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

1. and (4) PUCCH demodulation.

1) After the cell-level main CP finishes PUCCH configuration scheduling, the scheduling result information is sent to the UE-level main CP, namely the optimal sector;

2) and after the optimal sector completes PUCCH demodulation, the demodulation result is sent to the cell-level main CP.

2. And selective combined demodulation of PUSCH.

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

2) respectively carrying out uplink PUSCH physical layer demodulation decoding by the active CP in the active set;

3) activating CP except UE level main CP to send the result of demodulation CRC (A/N) to cell level main CP, and sending the bit stream with correct demodulation to user plane;

4) the UE level main CP sends the result of the demodulation CRC (A/N) and the result of the multiplexed UCI decoding to the cell level main CP, and sends the bit stream with correct demodulation to the user plane,

5) and the cell-level main CP collects the demodulation results of all CPs in all UE active sets, retransmission or new transmission judgment is carried out, and the TTI is considered to be transmitted correctly when the CRC of any one CP is correct.

6) If the UE needs retransmission, the CPs in the active set all need HARQ combination for retransmission.

3. Scheduling information interaction between downlink scheduling CPs;

1) the scheduling of the downlink common message adopts downlink full CP activation, the common message comprises SSB, SIB, BCCH and PCCH, and the messages are sent by all CPs in the super cell after the configuration scheduling is finished by the cell level main CP;

2) for a downlink reference signal CSI-RS, downlink full CP activation is adopted, and after configuration is completed by a cell-level main CP, all CPs in a super cell are used for transmitting;

3) the access stage also adopts downlink full CP activation, and after the related downlink message and scheduling are finished by the cell-level main CP, all CPs in the super cell are used for transmitting;

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

4. PDCCH and PDSCH scheduling

1) And after finishing the dispatching of the PDCCH and the PDSCH, the cell-level main CP sends the dispatching result of the PDCCH and the data stream of the PDSCH to the activated CP in the activated set of the UE, and the cell-level main CP finishes centralized dispatching and resource management of the PDCCH.

2) The PDCCH and the PDSCH are non-coherently and jointly transmitted by a CP in an active set of the UE.

In addition, an embodiment of the present invention also provides an apparatus, including: a memory, a processor, and a computer program stored on the memory and executable on the processor. The processor and memory may be connected by a bus or other means.

The memory, which is a non-transitory computer readable storage medium, may be used to store non-transitory software programs as well as non-transitory computer executable programs. Further, the memory may include high speed random access memory, and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, the memory optionally includes memory located remotely from the processor, and these remote memories may be connected to the processor through a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, 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 inventive concept, so that these embodiments have the same implementation principle and technical effect, and are not described in detail here.

Non-transitory software programs and instructions required to implement the resource scheduling method of the above-described embodiment are stored in the memory, and when executed by the processor, the scheduling method of the above-described embodiment is executed, for example, to perform method steps S101 to S103 in fig. 2, 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 S10263 to S10264 in fig. 8, method steps S201 to S203 in fig. 9, method steps S20111 to S201113 in fig. 10, method steps S20131 to S20137 in fig. 12, and method steps S1 to S20142 in fig. 15 described above.

The above-described embodiments of the apparatus are merely illustrative, wherein the units illustrated as separate components may or may not be physically separate, i.e. may be located in one place, or may also be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.

Furthermore, an embodiment of the present invention further provides a computer-readable storage medium, which stores computer-executable instructions, which are executed by a processor or a controller, for example, by a processor in the terminal embodiment, and enable the processor to execute the resource scheduling method in the above-described embodiment, for example, execute the above-described method steps S101 to S103 in fig. 2, 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 S10263 to S10264 in fig. 8, method steps S201 to S203 in fig. 9, method steps S2011 to S2014 in fig. 10, and method steps S1 to S201113 in fig. 11, Method steps S20131 to S20137 in fig. 12, and method steps S20141 to S20142 in fig. 15.

One of ordinary skill in the art will appreciate that all or some of the steps, systems, and methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the 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). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can 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 includes any information delivery media as known to those skilled in the art.

While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the foregoing and various other changes, omissions and deviations in the form and detail thereof may be made without departing from the scope of this invention.

Claims

1. A scheduling method for a super cell includes:

respectively acquiring channel quality measurement information between each cell fragment CP in the super cell and User Equipment (UE);

and utilizing the CP in the active set to carry out resource scheduling on the UE.

2. The method of claim 1, wherein the separately obtaining channel quality measurement information between each cell segment CP in the super cell and a user equipment UE comprises:

and when the UE is in an access stage, acquiring the PRACH quality measurement information of the physical random access channel between each CP and the UE in the super cell.

3. The method of claim 2, wherein the PRACH channel quality measurement information comprises a first signal to noise ratio, SINR, value, and wherein the active set comprises an uplink active set, and wherein the determining the active set from all CPs in the super cell according to the channel quality measurement information comprises:

determining a CP corresponding to a first SINR value with the largest value as a first main CP;

comparing first SINR values corresponding to the remaining CPs in the super cell except the first main CP with the first SINR value of the first main CP respectively, and determining the corresponding CP of which the SINR difference value is smaller than or equal to a first uplink activation threshold value as an activated CP;

and determining the collection of the first main CP and the active CP as the uplink active set.

4. The method of claim 3, wherein the PRACH channel quality measurement information further comprises a first received power (Ps) value, and wherein determining the active set from all CPs in the super cell according to the channel quality measurement information further comprises:

and respectively comparing first Ps (Ps) values corresponding to the remaining activated CPs except the first main CP in the uplink activation set with a second uplink activation threshold value, and removing the corresponding CPs of which the first Ps values are less than or equal to the second uplink activation threshold value from the uplink activation set.

5. The method of claim 3, wherein the active set further comprises a downlink active set, and wherein the determining the active set from all CPs in the super cell according to the channel quality measurement information further comprises:

and determining a set of all CPs in the super cell as the downlink active set.

6. The method of claim 1, wherein the separately obtaining channel quality measurement information between each cell segment CP in the super cell and a user equipment UE comprises:

and when the UE is in a normal service stage, acquiring the PUSCH quality measurement information or the SRS between each CP in the super cell and the UE.

7. The method of claim 6, wherein the PUSCH channel quality measurement information comprises a second SINR value, wherein the SRS comprises a second Ps value, wherein the active set comprises an uplink active set, and wherein determining the active set from all CPs in the super cell based on the channel quality measurement information comprises:

determining that the CP corresponding to the second SINR value with the largest value is the second main CP, comparing second SINR values corresponding to the remaining CPs in the super cell except for the second main CP with the second SINR values of the second main CP, respectively, determining that the CP corresponding to the SINR difference smaller than or equal to a third uplink activation threshold value is the activated CP, or determining that the CP corresponding to the second Ps value with the largest value is the second main CP, comparing the second Ps values corresponding to the remaining CPs in the super cell except for the second main CP with the second Ps value of the second main CP, respectively, determining that the CP corresponding to the Ps difference smaller than or equal to a fourth uplink activation threshold value is the activated CP;

and determining the collection of the second main CP and the active CP as the uplink active set.

8. The method of claim 7, wherein the determining that the CP corresponding to the second SINR value with the largest value is the second master CP comprises:

and comparing the second SINR value with the maximum value obtained currently with the second SINR value corresponding to the second main CP determined at the previous time, and when the SINR difference value is smaller than or equal to a first preset threshold value, keeping the second main CP determined at the previous time as the current second main CP.

9. The method of claim 8, wherein determining the CP corresponding to the second SINR value with the largest value as the second primary CP further comprises:

and comparing the second SINR value with the maximum value obtained currently with a second SINR value corresponding to the second main CP determined at the previous time, and updating the CP corresponding to the second SINR value with the maximum value obtained currently into a new second main CP when the SINR difference value is larger than a first preset threshold value.

10. The method of claim 7, wherein determining the CP corresponding to the second Ps value with the largest value as the second master CP comprises:

and comparing the second Ps value with the maximum value obtained currently with the second Ps value corresponding to the second main CP determined last time, and when the Ps difference value is smaller than or equal to a second preset threshold value, keeping the second main CP determined last time as the current second main CP.

11. The method of claim 10, wherein determining the CP corresponding to the numerically largest second Ps value as the second master CP further comprises:

and comparing the second Ps value with the maximum value obtained currently with the second Ps value corresponding to the second main CP determined at the previous time, and updating the CP corresponding to the second Ps value with the maximum value obtained currently into a new second main CP when the Ps difference value is larger than a first preset threshold value.

12. The method of claim 7, wherein the determining the active set from all CPs in the super cell according to the channel quality measurement information further comprises:

and respectively comparing second Ps values corresponding to the remaining activated CPs except the second main CP in the uplink activated set with a fifth uplink activation threshold value, and removing the CP corresponding to the second Ps value smaller than the fifth uplink activation threshold value from the uplink activated set.

13. The method of claim 7, wherein the active set comprises a downlink active set, and wherein determining the active set from all CPs in the super cell according to the channel quality measurement information further comprises:

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

determining a CP corresponding to the maximum downlink user equivalent receiving power value as a third main CP;

comparing the downlink user equivalent receiving power values corresponding to the remaining CPs in the super cell except the third main CP with the downlink user equivalent receiving power value of the third main CP respectively, and determining the corresponding CP with the downlink user equivalent receiving power value difference smaller than the downlink activation threshold value as the activated CP;

and determining the union set of the third main CP and the active CP as the downlink active set.

14. The method of claim 5 or 13, further comprising one of:

receiving uplink data sent by the UE by using the CP in the uplink active set;

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

measuring channel quality measurement information between the inactive CP and the UE using the inactive CP.

15. A base station comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the scheduling method according to any one of claims 1 to 14 when executing the program.

16. A computer-readable storage medium storing computer-executable instructions for performing the scheduling method of any one of claims 1 to 14.