CN110621070A

CN110621070A - Resource scheduling method, base station and computer storage medium

Info

Publication number: CN110621070A
Application number: CN201810632074.5A
Authority: CN
Inventors: 万祖辉
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2018-06-19
Filing date: 2018-06-19
Publication date: 2019-12-27
Anticipated expiration: 2038-06-19
Also published as: WO2019242558A1; CN110621070B

Abstract

The embodiment of the invention discloses a resource scheduling method, a base station and a computer storage medium, wherein the resource scheduling method comprises the following steps: determining an activated beam corresponding to a terminal to be scheduled from a preset beam; according to the aggregation level corresponding to the terminal to be scheduled, activating the beam, a pre-stored Control Channel Element (CCE) starting position set corresponding to the activated beam and a pre-stored available CCE set corresponding to the activated beam, and obtaining a scheduling parameter corresponding to the terminal to be scheduled; updating a pre-stored CCE initial position set according to the CCE initial position, and updating a pre-stored available CCE set according to the CCE set so as to complete a CCE allocation process of the terminal to be scheduled; continuing to execute a CCE distribution process on a next terminal to be scheduled in the plurality of terminals until a plurality of scheduling parameters corresponding to the plurality of terminals are obtained; wherein, one terminal corresponds to one scheduling parameter; and according to the scheduling parameters, performing resource scheduling on the terminals.

Description

Resource scheduling method, base station and computer storage medium

Technical Field

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

Background

With the continuous development of the fourth generation (4G) mobile communication system, a large-scale Multiple-Input Multiple-Output (MIMO) technology will become an important technology for increasing network capacity. Frequency Division Duplex (FDD) is one of full duplex communication technologies used in a mobile communication system, and in an FDD system, since uplink and downlink channels do not have reciprocity, a strategy similar to that in a Test-drive Development (TDD) system cannot be used to increase network capacity. However, in the FDD system, the Departure Angle (DOA) Of the uplink and downlink channels has reciprocity, MassiveMIMO technology divides a cell into a plurality Of preset beams according to the DOA range to cover the cell, selects an active beam for a terminal according to a certain strategy, and a base station transmits data to the terminal through the active beam.

Under an FDD system, a masseve mimo technology is adopted to enable a base station to schedule more terminals at a single scheduling time, wherein a Control Channel Element (CCE) resource of a Physical Downlink Control Channel (PDCCH) is a resource for carrying terminal Control information, so space division multiplexing of a corresponding CCE resource is particularly important when the base station performs terminal space division, however, a CCE scheduling policy of masseve mimo in the prior art has a problem of CCE resource limitation, which further causes reduction in the number of terminals for space division, thereby affecting space division performance.

Disclosure of Invention

The embodiment of the invention provides a resource scheduling method, a base station and a computer storage medium, which can effectively solve the problem of CCE resource limitation, and further improve the number of space division terminals, thereby further improving the space division performance.

In order to achieve the above purpose, the technical solution of the embodiment of the present invention is realized as follows:

the embodiment of the invention provides a resource scheduling method, which comprises the following steps:

determining an activated beam corresponding to a terminal to be scheduled from a preset beam; the terminal to be scheduled is one terminal which is not subjected to resource scheduling and has the highest scheduling priority in the plurality of terminals;

according to the aggregation level corresponding to the terminal to be scheduled, the activation wave beam, a pre-stored Control Channel Element (CCE) starting position set corresponding to the activation wave beam and a pre-stored available CCE set corresponding to the activation wave beam are obtained, and a scheduling parameter corresponding to the terminal to be scheduled is obtained; wherein the scheduling parameters comprise a CCE starting position and a CCE set corresponding to the active beam; any one of the active beams corresponds to one CCE starting position and one CCE set;

updating the pre-stored CCE starting position set according to the CCE starting position, and updating the pre-stored available CCE set according to the CCE set so as to complete a CCE allocation process of the terminal to be scheduled;

continuing to execute the CCE allocation process on the next terminal to be scheduled in the plurality of terminals until a plurality of scheduling parameters corresponding to the plurality of terminals are obtained; wherein, one terminal corresponds to one scheduling parameter;

and scheduling resources for the plurality of terminals according to the plurality of scheduling parameters.

In the foregoing solution, the obtaining, according to the aggregation level corresponding to the terminal to be scheduled, a scheduling parameter corresponding to the terminal to be scheduled by the active beam, the set of CCE starting positions of pre-stored control channel elements corresponding to the active beam, and the set of pre-stored available CCEs corresponding to the active beam includes:

acquiring an initial CCE position corresponding to the terminal to be scheduled;

determining the CCE starting position according to the initial CCE position, the set of prestored CCE starting positions and the set of prestored available CCE;

and determining the CCE set according to the CCE starting position and the aggregation level.

In the above scheme, the determining the CCE starting position according to the initial CCE location, the set of pre-stored CCE starting locations, and the set of pre-stored available CCEs includes:

when the initial CCE position exists in the set of pre-stored CCE starting positions, determining the CCE starting positions according to the set of pre-stored available CCEs and the aggregation level;

when the initial CCE position does not exist in the set of pre-stored CCE starting positions, determining the CCE starting positions according to the initial CCE position and the set of pre-stored available CCEs.

In the foregoing scheme, before determining an active beam corresponding to a terminal to be scheduled from a preset beam, the method further includes:

and dividing beams according to the departure angle ranges corresponding to the plurality of terminals to obtain the preset beams.

In the above scheme, the determining an active beam corresponding to a terminal to be scheduled from a preset beam includes:

calculating the projection energy ratio of the terminal to be scheduled in the preset beam;

and determining the beams with the projection energy ratio larger than a preset ratio threshold value in the preset beams as the activated beams.

In the above scheme, the updating the set of pre-stored CCE starting positions according to the CCE starting position includes:

when the terminal to be scheduled is uplink scheduling, the pre-stored CCE starting position set is not changed;

and when the terminal to be scheduled is in downlink scheduling, adding the CCE starting position to the pre-stored CCE starting position set.

In the above scheme, the updating the set of pre-stored available CCEs according to the set of CCEs includes:

removing the set of CCEs from the set of pre-stored available CCEs.

In the foregoing solution, the performing data transmission on the plurality of terminals according to the plurality of scheduling parameters includes:

allocating CCEs to the plurality of terminals according to the plurality of CCE sets corresponding to the plurality of scheduling parameters;

and transmitting a physical downlink control channel to the plurality of terminals through the CCE.

An embodiment of the present invention provides a base station, where the base station includes a processor, a memory storing executable instructions of the processor, a communication interface, and a bus for connecting the processor, the memory, and the communication interface, and when the instructions are executed, the processor implements the resource scheduling method as described above.

An embodiment of the present invention provides a computer-readable storage medium, which stores a program thereon, and is applied in a base station, where the program is executed by a processor to implement the resource scheduling method described above.

The embodiment of the invention provides a resource scheduling method, a base station and a computer storage medium, wherein the base station determines an activated beam corresponding to a terminal to be scheduled from a preset beam; the terminal to be scheduled is one terminal which is not subjected to resource scheduling and has the highest scheduling priority in the plurality of terminals; according to the aggregation level corresponding to the terminal to be scheduled, activating the wave beam, activating a prestored CCE starting position set corresponding to the wave beam and activating a prestored available CCE set corresponding to the wave beam to obtain a scheduling parameter corresponding to the terminal to be scheduled; the scheduling parameters comprise CCE starting positions and CCE sets corresponding to the activated beams; any one of the active beams corresponds to one CCE starting position and one CCE set; updating a pre-stored CCE initial position set according to the CCE initial position, and updating a pre-stored available CCE set according to the CCE set so as to complete a CCE allocation process of the terminal to be scheduled; continuing to execute a CCE distribution process on a next terminal to be scheduled in the plurality of terminals until a plurality of scheduling parameters corresponding to the plurality of terminals are obtained; wherein, one terminal corresponds to one scheduling parameter; and according to the scheduling parameters, performing resource scheduling on the terminals. That is to say, in an FDD system, a base station may determine CCE starting positions and CCE sets in active beams corresponding to a plurality of terminals respectively by using active beams in a preset beam, and update a pre-stored CCE starting position set and a pre-stored available CCE set according to CCE starting positions and CCE sets corresponding to different terminals, thereby implementing space division multiplexing of CCEs, so as to effectively solve the problem that CCE resources are limited in a CCE scheduling policy of masivemimo, further increase the number of space-divided terminals, ensure that the space-time CCE resources of masivemimo do not become a bottleneck, and improve the space division performance of masivemimo.

Drawings

Fig. 1 is a first schematic flow chart illustrating an implementation of a resource scheduling method according to an embodiment of the present invention;

fig. 2 is a schematic flow chart illustrating an implementation of a resource scheduling method according to an embodiment of the present invention;

fig. 3 is a schematic flow chart illustrating a third implementation process of a resource scheduling method according to an embodiment of the present invention;

fig. 4 is a schematic flow chart of an implementation of a resource scheduling method according to an embodiment of the present invention;

fig. 5 is a schematic flow chart illustrating an implementation of a resource scheduling method according to an embodiment of the present invention;

fig. 6 is a first schematic view of CCE allocation of a resource scheduling method according to an embodiment of the present invention;

fig. 7 is a second CCE allocation diagram of a resource scheduling method according to an embodiment of the present invention;

fig. 8 is a third schematic view of CCE allocation of a resource scheduling method according to an embodiment of the present invention;

fig. 9 is a schematic view of CCE allocation according to a resource scheduling method proposed in the embodiment of the present invention;

fig. 10 is a first schematic structural diagram of a base station according to an embodiment of the present invention;

fig. 11 is a schematic structural diagram of a base station according to an embodiment of the present invention.

Detailed Description

With the continuous development of the fourth generation mobile communication system, masivemimo will become an important technology for increasing network capacity.

At present, in a TDD mode, MassiveMIMO technology obtains a downlink channel through uplink sounding signal estimation by using reciprocity of uplink and downlink channels, so as to implement accurate multi-antenna beamforming, thereby improving the receiving performance of a terminal, and in addition, terminals with lower downlink channel correlation can spatially multiplex the same time-frequency resources, thereby further improving network capacity.

In FDD mode, uplink and downlink channels do not have reciprocity, so that it is not possible to use a strategy similar to TDD mode to increase network capacity. However, in FDD mode, DOAs of uplink and downlink channels have reciprocity, MassiveMIMO technology divides a cell into a plurality of preset beams according to the DOA range to cover, and selects an activated beam for a terminal according to a certain strategy, a base station sends data to the terminal by activating the beam in the beam, and in addition, the terminal with the activated beam without intersection can spatially multiplex the same time-frequency resource, thereby improving network capacity.

The resource scheduling method provided by the embodiment of the invention can realize space division multiplexing of CCE by using the preset beam for a CCE scheduling strategy of MassiveMIMO based on an FDD system, thereby ensuring that the CCE resource does not become a bottleneck in space division of the MassiveMIMO and greatly ensuring the space division performance of the MassiveMIMO.

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Example one

Fig. 1 is a schematic flow chart of an implementation of a resource scheduling method according to an embodiment of the present invention, as shown in fig. 1, in an embodiment of the present invention, a method for a base station to perform resource scheduling may include the following steps:

step 101, determining an activated beam corresponding to a terminal to be scheduled from a preset beam; the terminal to be scheduled is one of the terminals which is not subjected to resource scheduling and has the highest scheduling priority.

In the embodiment of the present invention, the base station may determine, from the preset beams, the activated beams corresponding to the terminal to be scheduled. The preset beams are obtained by uniformly dividing the DOA range covered by the cell by the scheduler of the base station, and each preset beam corresponds to one DOA range.

It should be noted that, in the embodiment of the present invention, the terminal to be scheduled may be one of the terminals that has not been subjected to resource scheduling and has the highest scheduling priority. Specifically, the base station has a certain scheduling order when performing space division on the plurality of terminals, and the terminal with the earlier scheduling order has a higher scheduling priority corresponding to the terminal.

It should be noted that, in the embodiment of the present invention, the uplink channel is estimated through the uplink sounding signal, and because DOA of the uplink channel and the downlink channel have reciprocity, a projection energy ratio of the uplink channel in each preset beam is calculated, and if the projection energy ratio in a certain preset beam is greater than a preset ratio threshold, the beam is determined as an active beam.

Further, in an embodiment of the present invention, when the base station determines the active beam corresponding to the terminal to be scheduled from the preset beams, the base station may respectively calculate a projected energy ratio of an uplink channel corresponding to the terminal to be scheduled in the preset beams, and if the projected energy ratio of a certain beam in the preset beams is greater than a preset ratio threshold, the base station may determine the beam as the active beam.

It should be noted that, in the embodiment of the present invention, the active beam may be at least one of the preset beams.

102, according to the aggregation level corresponding to the terminal to be scheduled, activating a beam, activating a pre-stored CCE starting position set corresponding to the beam and pre-storing an available CCE set corresponding to the beam to be activated, and obtaining a scheduling parameter corresponding to the terminal to be scheduled; the scheduling parameters comprise CCE starting positions and CCE sets corresponding to the activated beams; any one of the active beams corresponds to one CCE starting position and one CCE set.

In an embodiment of the present invention, after determining, by the base station, an active beam corresponding to a terminal to be scheduled from preset beams, the base station may obtain a scheduling parameter corresponding to the terminal to be scheduled according to an aggregation level corresponding to the terminal to be scheduled, the active beam, a set of pre-stored CCE starting positions corresponding to the active beam, and a set of pre-stored available CCEs corresponding to the active beam.

It should be noted that, in the embodiment of the present invention, the scheduling parameter may include a CCE starting location and a CCE set corresponding to the active beam. Wherein, any one of the active beams corresponds to one CCE starting position and one CCE set.

Further, in the embodiment of the present invention, at the current time, there is one set of CCEs available for each beam in the preset beams, that is, the preset beams are the CCE set available for useThere are available sets of CCEs. For example, when the base station divides and obtains n preset beams, since n preset beams exist, there are n sets of pre-stored available CCEs, which are S respectively_Beam,0、S_Beam,1，...S_Beam,n-1The set of CCE starting positions prestored in the terminal to be scheduled is S_UeStartPosAnd is initialized to 0. Before scheduling at the current time, the pre-stored available CCE sets on each preset beam are equal, that is, the CCEs on each preset beam are aggregated into the pre-stored available CCE set at the current time, and the pre-stored CCE starting position set S of the terminal to be scheduled is_UeStartPosNull, no value.

And 103, updating the pre-stored CCE starting position set according to the CCE starting position, and updating the pre-stored available CCE set according to the CCE set so as to complete the CCE allocation process of the terminal to be scheduled.

In the implementation of the present invention, after obtaining the CCE initial position and the CCE set corresponding to the terminal to be scheduled according to the aggregation level corresponding to the terminal to be scheduled, the base station may update the set of the pre-stored CCE initial positions according to the CCE initial position, and may update the set of the pre-stored available CCE according to the set of the CCE, so as to complete a CCE allocation procedure for the terminal to be scheduled.

Further, in the embodiment of the present invention, after obtaining the CCE starting location, the base station may update the set of pre-stored CCE starting locations. Specifically, when the base station updates the pre-stored CCE starting position set, it needs to determine a data transmission direction of the terminal to be scheduled first, and if the terminal to be scheduled is uplink scheduling, the base station does not need to update the pre-stored CCE starting position set corresponding to the active beam according to the CCE starting position, that is, does not change the pre-stored CCE starting position set. And if the terminal to be scheduled is in downlink scheduling, adding the CCE starting position into the pre-stored CCE starting position set.

Further, in the embodiment of the present invention, after obtaining the CCE set, the base station may update the pre-stored available CCE set. Specifically, when the base station updates the pre-stored available CCE set, it is not necessary to determine a data transmission direction of the terminal to be scheduled, and the base station may remove the CCE set from the pre-stored available CCE set regardless of whether the terminal to be scheduled is uplink scheduling or downlink scheduling, so as to update the pre-stored available CCE set.

It should be noted that, in the embodiment of the present invention, when the base station may perform PDCCH space division for multiple terminals and multiplex CCE resources, since it is necessary to avoid an influence of a downlink Hybrid automatic repeat Request (HARQ) feedback during downlink scheduling, it is necessary to ensure that CCE resources used by different active beams need to ensure different starting positions.

It should be noted that, in the embodiment of the present invention, if the terminal to be scheduled is downlink scheduling, after determining the active beam corresponding to the terminal to be scheduled, the base station allocates CCE resources on the active beam, and it is required to ensure that CCE resources allocated to the active beam by the terminal to be scheduled are completely the same, it is required to first determine whether the CCE initial position is in the set S of prestored CCE initial positions_UeStartPosIf the set of CCE starting positions S is pre-stored_UeStartPosIf the CCE starting location exists, the base station continues to allocate the active beam corresponding to the terminal to be scheduled again according to the method until allocation is successful. The base station may remove the obtained CCE aggregation from the set of pre-stored available CCEs, and may add the obtained CCE starting location to the set of pre-stored CCE starting locations, so as to update the set of pre-stored available CCEs and the set of pre-stored CCE starting locations. If the allocation fails, the CCE allocation may be considered to fail, and the set of pre-stored available CCEs and the set of pre-stored CCE starting positions do not change.

It should be noted that, in the embodiment of the present invention, if the terminal to be scheduled is uplink scheduled, it is determined that the terminal to be scheduled is uplink scheduledAfter the activation beam corresponding to the terminal, the base station allocates CCE resources on the activation beam, and needs to determine whether the CCE initial position is in the set S of prestored CCE initial positions first, if it is required to ensure that the CCE resources allocated by the terminal to be scheduled on the activation beam are completely the same_UeStartPosIf the set of CCE starting positions S is pre-stored_UeStartPosIf the CCE starting location exists, the base station continues to allocate the active beam corresponding to the terminal to be scheduled again according to the method until allocation is successful. The base station may remove the obtained CCE set from the set of pre-stored available CCEs to update the set of pre-stored available CCEs. Since the uplink scheduling does not need to update the set of pre-stored CCE starting positions, the base station does not need to add the obtained CCE starting positions to the set of pre-stored CCE starting positions, that is, the set of pre-stored CCE starting positions remains unchanged. If the allocation fails, the CCE allocation may be considered to fail, and the set of pre-stored available CCEs and the set of pre-stored CCE starting positions do not change.

Step 104, continuing to perform resource scheduling on a next terminal to be scheduled in the plurality of terminals until a plurality of scheduling parameters corresponding to the plurality of terminals are obtained; wherein one terminal corresponds to one scheduling parameter.

In an embodiment of the present invention, after the base station updates the set of pre-stored CCE starting positions according to the CCE starting positions and updates the set of pre-stored available CCEs according to the set of CCEs, so as to complete a CCE allocation procedure for the terminal to be scheduled, the base station may continue to execute the CCE allocation procedure for a next terminal to be scheduled in the plurality of terminals until a plurality of scheduling parameters corresponding to the plurality of terminals are obtained; wherein one terminal corresponds to one scheduling parameter.

It should be noted that, in the embodiment of the present invention, the base station may sequentially execute the CCE allocation flows described in the above steps 101 to 104 to the plurality of terminals according to the scheduling priorities corresponding to the plurality of terminals until obtaining the plurality of scheduling parameters corresponding to the plurality of terminals.

In this embodiment of the present invention, the scheduling priorities corresponding to the multiple terminals may be the scheduling orders of the multiple terminals, and the scheduling priority is higher the earlier the scheduling order is.

Further, in this embodiment of the present invention, after the base station performs the CCE allocation procedure on the plurality of terminals, the base station may obtain a plurality of scheduling parameters corresponding to the plurality of terminals, that is, may obtain a scheduling parameter corresponding to any terminal, where scheduling corresponding to any terminal may include a CCE starting position and a CCE set corresponding to the CCE starting position.

And 105, scheduling resources for the plurality of terminals according to the plurality of scheduling parameters.

In an embodiment of the present invention, after the base station executes the CCE allocation procedure for the plurality of terminals to obtain a plurality of scheduling parameters corresponding to the plurality of terminals, the base station may perform resource scheduling for the plurality of terminals according to the plurality of scheduling parameters.

Further, in an embodiment of the present invention, after obtaining the plurality of scheduling parameters corresponding to the plurality of terminals, the base station may allocate CCEs to the plurality of terminals according to a plurality of CCE sets corresponding to the plurality of scheduling parameters, and then transmit a physical downlink control channel PDCCH to the plurality of terminals through the CCEs.

In an embodiment of the present invention, the PDCCHs transmitted by the base station to the plurality of terminals are transmitted using the active beams corresponding to the plurality of terminals, that is, only the active beam has the transmission energy of the PDCCH, other inactive beams in the preset beam do not have the transmission energy of the PDCCH, and the plurality of terminals have the energy of the PDCCH only on the active beam to which each terminal belongs, that is, CCEs used by the PDCCHs on the plurality of terminals are CCEs allocated to each active beam.

The embodiment of the invention provides a resource scheduling method.A base station determines an activated beam corresponding to a terminal to be scheduled from a preset beam; the terminal to be scheduled is one terminal which is not subjected to resource scheduling and has the highest scheduling priority in the plurality of terminals; according to the aggregation level corresponding to the terminal to be scheduled, activating the wave beam, activating a prestored CCE starting position set corresponding to the wave beam and activating a prestored available CCE set corresponding to the wave beam to obtain a scheduling parameter corresponding to the terminal to be scheduled; the scheduling parameters comprise CCE starting positions and CCE sets corresponding to the activated beams; any one of the active beams corresponds to one CCE starting position and one CCE set; updating a pre-stored CCE initial position set according to the CCE initial position, and updating a pre-stored available CCE set according to the CCE set so as to complete a CCE allocation process of the terminal to be scheduled; continuing to execute a CCE distribution process on a next terminal to be scheduled in the plurality of terminals until a plurality of scheduling parameters corresponding to the plurality of terminals are obtained; wherein, one terminal corresponds to one scheduling parameter; and according to the scheduling parameters, performing resource scheduling on the terminals. That is to say, in an FDD system, a base station may determine CCE starting positions and CCE sets in active beams corresponding to a plurality of terminals respectively by using active beams in a preset beam, and update a pre-stored CCE starting position set and a pre-stored available CCE set according to CCE starting positions and CCE sets corresponding to different terminals, thereby implementing space division multiplexing of CCEs, so as to effectively solve the problem that CCE resources are limited in a CCE scheduling policy of masivemimo, further increase the number of space-divided terminals, ensure that the space-time CCE resources of masivemimo do not become a bottleneck, and improve the space division performance of masivemimo.

Example two

Fig. 2 is a schematic diagram illustrating an implementation flow of a resource scheduling method according to an embodiment of the present invention, as shown in fig. 2, based on the first embodiment, in the embodiment of the present invention, further, based on the first embodiment, the method for the base station to obtain the scheduling parameter corresponding to the terminal to be scheduled according to the aggregation level corresponding to the terminal to be scheduled, the active beam, the pre-stored CCE starting position set corresponding to the active beam, and the pre-stored available CCE set corresponding to the active beam may include the following steps:

and 102a, acquiring an initial CCE position corresponding to a terminal to be scheduled.

In the embodiment of the present invention, after determining the active beam corresponding to the terminal to be scheduled from the preset beams, the base station may first acquire an initial CCE location corresponding to the terminal to be scheduled.

Further, in this embodiment of the present invention, the base station may calculate the initial CCE location of the terminal to be scheduled by using a preset protocol formula, where the initial CCE location obtained by calculation is not necessarily the CCE starting location.

And step 102b, determining the CCE starting position according to the initial CCE position, the pre-stored CCE starting position set and the pre-stored available CCE set.

In an embodiment of the present invention, after the base station acquires the initial CCE location corresponding to the terminal to be scheduled, the base station may determine the CCE starting location from the set of pre-stored available CCEs according to the initial CCE location, the set of pre-stored CCE starting locations, and the set of pre-stored available CCEs.

It should be noted that, in the embodiment of the present invention, after the base station obtains the initial CCE location by calculation, the base station may compare the initial CCE location with all starting locations in the set of pre-stored CCE starting locations, so as to determine whether the CCE starting location exists in the set of pre-stored CCE starting locations, so as to further determine the CCE starting location from the set of pre-stored available CCEs.

In an embodiment of the present invention, further, fig. 3 is a schematic view illustrating an implementation flow of a resource scheduling method according to an embodiment of the present invention, as shown in fig. 3, in an embodiment of the present invention, the method for determining the CCE starting position by the base station according to the initial CCE position, the set of pre-stored CCE starting positions, and the set of pre-stored available CCEs may include the following steps:

step 201, when an initial CCE location exists in the set of pre-stored CCE starting locations, determining the CCE starting locations according to the set of pre-stored available CCEs and the aggregation level.

In an embodiment of the present invention, after the base station acquires the initial CCE location corresponding to the terminal to be scheduled, if the initial CCE location exists in the set of pre-stored CCE starting locations, the base station may determine the CCE starting location according to the set of pre-stored available CCEs and the aggregation level.

It should be noted that, in the embodiment of the present invention, after comparing the initial CCE locations with all initial locations in the set of pre-stored CCE initial locations, if the initial CCE locations exist in the set of pre-stored CCE initial locations, the base station does not use the initial CCE locations as the CCE initial locations, but continues to further determine the CCE initial locations according to the set of pre-stored available CCEs and the aggregation level. Therefore, the starting positions of the distributed CCE resources can be effectively ensured to be different.

Further, in an embodiment of the present invention, after determining that the initial CCE location exists in the set of pre-stored CCE starting locations, the base station may re-determine the CCE starting location according to the aggregation level based on the initial CCE location.

Step 202, when the initial CCE position does not exist in the set of pre-stored CCE starting positions, determining the CCE starting positions according to the initial CCE position and the set of pre-stored available CCEs.

In an embodiment of the present invention, after the base station acquires the initial CCE location corresponding to the terminal to be scheduled, if the initial CCE location does not exist in the set of pre-stored CCE starting locations, the base station may determine the CCE starting location according to the initial CCE location and the set of pre-stored available CCEs.

It should be noted that, in the embodiment of the present invention, after the base station respectively compares the initial CCE locations with all initial locations in the set of pre-stored CCE initial locations, if the set of pre-stored CCE initial locations does not have the initial CCE location, the base station continues to determine the CCE initial locations according to the initial CCE locations and the set of pre-stored available CCE locations, so as to effectively ensure that the initial locations of the allocated CCE resources are different from each other.

And step 102c, determining a CCE set according to the CCE starting position and the aggregation level.

In an embodiment of the present invention, after determining the CCE starting position from the set of pre-stored available CCEs according to the initial CCE position and the set of pre-stored CCE starting positions, the base station may determine the CCE set according to the CCE starting position and the aggregation level.

In an embodiment of the present invention, after determining the CCE starting position, the base station may further determine, according to the aggregation level, the CCE set from the pre-stored available CCE sets based on the CCE starting position.

According to the above description, by the method corresponding to the above steps 102a-102c, the base station obtains the initial CCE location corresponding to the terminal to be scheduled; determining the CCE starting position from the pre-stored available CCE set according to the initial CCE position and the pre-stored CCE starting position set; determining the CCE set from the pre-stored available CCE sets according to the CCE starting position and the aggregation level. That is to say, in an FDD system, a base station may determine CCE starting positions and CCE sets in active beams corresponding to a plurality of terminals respectively by using active beams in a preset beam, and update a pre-stored CCE starting position set and a pre-stored available CCE set according to CCE starting positions and CCE sets corresponding to different terminals, thereby implementing space division multiplexing of CCEs, so as to effectively solve the problem that CCE resources are limited in a CCE scheduling policy of masivemimo, further increase the number of space-divided terminals, ensure that the space-time CCE resources of masivemimo do not become a bottleneck, and improve the space division performance of masivemimo.

EXAMPLE III

Fig. 4 is a schematic flow chart of a fourth implementation process of a resource scheduling method according to an embodiment of the present invention, as shown in fig. 4, based on the first embodiment, in the embodiment of the present invention, further before the base station determines an active beam corresponding to a terminal to be scheduled from preset beams, that is, before step 101, the method for the base station to perform resource scheduling may further include the following steps:

and 106, dividing the beams according to the departure angle ranges corresponding to the multiple terminals to obtain preset beams.

In an embodiment of the present invention, before determining the active beam corresponding to the terminal to be scheduled from the preset beams, the base station needs to perform beam division according to departure angle ranges corresponding to the plurality of terminals to obtain the preset beams.

Further, in the embodiment of the present invention, the scheduler of the base station may obtain the DOA range covered by the cell by uniformly dividing, where each preset beam corresponds to one DOA range. Wherein, the overlapping requirement between the preset beams obtained after the division is small enough.

Further, in the embodiment of the present invention, the DOA range width covered by the preset beam is related to the number of antennas of the base station, and the DOA range width covered by the preset beam may be narrower as the number of antennas of the base station increases.

Fig. 5 is a schematic flow chart of a fifth implementation process of a resource scheduling method according to an embodiment of the present invention, as shown in fig. 5, in an embodiment of the present invention, further, a method for determining, by the base station, an active beam corresponding to a terminal to be scheduled from preset beams may include the following steps:

step 101a, calculating the projection energy ratio of the terminal to be scheduled in a preset beam.

In an embodiment of the present invention, the base station may first calculate a projection energy ratio of the terminal to be scheduled in the preset beam.

It should be noted that, in the embodiment of the present invention, the base station may first calculate a projection energy ratio of the uplink channel corresponding to the terminal to be scheduled in the preset beam, and then further determine the activated beam corresponding to the terminal to be scheduled from the preset beam according to the projection energy ratio.

And step 101b, determining beams with the projection energy ratio larger than a preset ratio threshold value in the preset beams as activated beams.

In an embodiment of the present invention, after calculating the projection energy ratio of the terminal to be scheduled in the preset beam, the base station may determine, as the active beam, a beam of the preset beam whose projection energy ratio is greater than a preset ratio threshold.

Further, in this embodiment of the present invention, the base station estimates an uplink channel through an uplink sounding signal, and calculates a projected energy ratio of the uplink channel in each preset beam because DOAs of the uplink channel and the downlink channel have reciprocity, and determines a certain preset beam as the active beam if the projected energy ratio in the certain preset beam is greater than a preset ratio threshold.

It should be noted that, in the embodiment of the present invention, the preset duty threshold is a value preset by the base station, specifically, if the preset duty threshold is not set reasonably, or the DOA of the channel is wide, may result in the absence of the above-mentioned active beam for the terminal to be scheduled, or the number of the activated beams corresponding to the terminal to be scheduled is too small, so that the base station can set a preset total threshold while setting the preset ratio threshold, when the total projected energy ratio of the activated beam corresponding to the terminal to be scheduled is smaller than the preset total threshold, the base station may add a beam having a maximum projected energy ratio among the inactive beams among the preset beams to the active beam, and repeating the steps until the total projection energy occupation ratio of the activated beam corresponding to the terminal to be scheduled is greater than or equal to the preset total threshold.

Further, in the embodiment of the present invention, the higher the modulation order of the terminal to be scheduled is, the greater the influence caused by channel mismatch is, so for the terminal to be scheduled with different channel qualities, the base station may use different preset duty ratio thresholds when determining the active beam, so that the preset duty ratio threshold corresponding to the terminal to be scheduled with higher channel quality is smaller, the number of corresponding active beams is larger, and the influence caused by channel mismatch is further reduced.

Example four

Based on the methods described in the first to third embodiments, fig. 6 is a schematic view of CCE allocation of a resource scheduling method according to the first embodiment of the present invention, as shown in fig. 6, in the embodiment of the present invention, further, both the terminal a and the terminal B in fig. 6 are downlink scheduling, and the scheduling order is terminal a and terminal B, and by the resource scheduling method according to the present invention, the terminal B avoids the starting position 24 of the terminal a and starts allocation from the starting position 28, where the terminal a uses the beam 1, the terminal B uses the beam 5, and the terminal a and the terminal B multiplex CCEs 28 to 31.

Specifically, in the embodiment of the present invention, a specific process of the base station performing resource scheduling on the terminal a and the terminal B may include the following steps:

step 301, determining preset beams of the segmented cells.

In the embodiment of the invention, a base station divides 8 preset beams with the numbers of 0-7 in a cell according to the DOA ranges of a terminal A and a terminal B.

Step 302, determining an active beam used by the terminal.

In the embodiment of the invention, the base station obtains an active beam set S according to the projection energy Pi of the terminal A on each preset beam and an algorithm:

S＝func(P0，P1，...，PN)N＝7

for example, P0, P1, P2, P3, P4, P5, P6, P7 have energies of 800, 12000, 500, 300, 200, 180, 100, 400, respectively.

If the active beam of terminal a is calculated by the algorithm as S ═ {1}, similarly, if the active beam of terminal B is S ═ {5 }.

Step 303, for the terminal with no intersection of the active beams, PDCCH space division can be performed, and CCE resources are multiplexed.

(1) And input conditions:

a. assuming that no scheduling is performed at the moment, the pre-stored available CCE set before the non-scheduling at the air interface moment is 0-32.

b. The downlink PDCCH index of terminal a is 16, the aggregation level is 8, and the RNTI of terminal a is 1883.

c. The downlink PDCCH index of terminal B is 13, the aggregation level is 4, and the RNTI of terminal B is 74. The air interface scheduling time at this time is 0.

(2) And since the pre-stored available CCE set before the air interface moment is not scheduled is 0-32, the pre-stored available CCE set S on the wave beam 0_Beam，0The CCE pre-storage available CCE set on beams 1 to 7 is equal to beam 0, i.e. CCE set S on beams 0 to 7, { 0-32 }_Beam，k＝{0～32}，Wherein k is a preset beam number, and at this time, a CCE starting position set S is prestored_UeStartPos＝{}。

(3) Starting to schedule the terminal A, the terminal A uses the CCE set S on the beam 1_Beam，1Allocating {0.. 32}, wherein the aggregation level of the terminal A is 8, calculating by a protocol formula that if the starting position is 24, using 8 CCEs of 24-31, and pre-storing a CCE starting position set S_UeStartPosNo value, so the starting position 24 is not occupied, then the allocation is successful. Then, the pre-stored available CCE set on the beam 1 is updated to be S_Beam，1Updating the set of prestored starting positions S, namely {0.. 23, 32}_UeStartPos＝{24}。

(4) Starting scheduling of terminal B using CCE set S on beam 5_Beam，5Assign {0.. 32}, terminal B has an aggregation level of 4, obtain a starting position calculated by a protocol formula of 24, and check a starting position set S_UeStartPosWhere 24 is found to already exist in the set of pre-stored CCE starting locations, the calculation may continue further according to the protocol formula, where the starting location is 28, at S_UeStartPosThis starting position cannot be found inside, so 4 CCEs are taken as 28, 29, 30, 31, and allocation can be successful. Then updating the set of available CCEs prestored on the beam 5 to S_Beam，5Updating the set of prestored starting positions S, i.e., {0.. 27, 32}_UeStartPos＝{24，28}。

And step 304, the PDCCH adopts the activated beam to transmit.

In the embodiment of the present invention, terminal a transmits using active beam 1 at this time, and terminal B transmits using active beam 5, each using the allocated CCE on the active beam of the respective terminal.

EXAMPLE five

Based on the methods described in the first to third embodiments, fig. 7 is a CCE allocation diagram illustrating a resource scheduling method according to an embodiment of the present invention, as shown in fig. 7, in the embodiment of the present invention, further, both the terminal a and the terminal B in fig. 7 are uplink scheduling, and the scheduling order is terminal a and terminal B, according to the resource scheduling method according to the present invention, the terminal B and the terminal a use the same starting position 24, where the terminal a uses the beam 2, the terminal B uses the beam 7, and the terminal a and the terminal B multiplex CCEs 28 to 31.

step 401, determining preset beams of the segmented cells.

Step 402, determining an active beam used by the terminal.

S＝func(P0，P1，...，PN)N＝7

for example, P0, P1, P2, P3, P4, P5, P6, P7 have energies of 800, 700, 11500, 300, 200, 180, 100, 400, respectively.

If the active beam of terminal a is calculated by the algorithm as S ═ {2}, similarly, if the active beam of terminal B is S ═ {7 }.

Step 403, for the terminal with no intersection of the active beams, PDCCH space division can be performed, and CCE resources are multiplexed.

(1) And input conditions:

b. The downlink PDCCH index of terminal a is 16, the aggregation level is 8, and the RNTI of terminal a is 1775.

c. The downlink PDCCH index of terminal B is 13, the aggregation level is 4, and the RNTI of terminal B is 105. The air interface scheduling time at this time is 2.

(2) And since the pre-stored available CCE set before the air interface moment is not scheduled is 0-32, the pre-stored available CCE set S on the wave beam 0_Beam，0The CCE pre-storage available CCE set on beams 1 to 7 is equal to beam 0, i.e. CCE set S on beams 0 to 7, { 0-32 }_Beam，kK is a preset beam number, and at this time, a CCE starting position set S is prestored_UeStartPos＝{}。

(3) Starting scheduling terminal A, terminal A using CCE set S on beam 2_Beam，2Allocating {0.. 32}, wherein the aggregation level of the terminal A is 8, calculating by a protocol formula that if the starting position is 24, using 8 CCEs of 24-31, and pre-storing a CCE starting position setAnd then S_UeStartPosNo value, so the starting position 24 is not occupied, then the allocation is successful. Then, the pre-stored available CCE set on the beam 1 is updated to be S_Beam，2No modification of the set S of prestored CCE starting positions is required, {0.. 23, 32}_UeStartPosSo the set of CCE starting positions is still S_UeStartPos＝{}。

(4) Starting scheduling of terminal B using CCE set S on beam 7_Beam，7The aggregation level of the terminal B is 4, the starting position obtained by the calculation of the protocol formula is also 24, and the uplink scheduling does not need to check the starting position set S_UeStartPosAnd thus can be assigned directly to succeed. Then updating the set of available CCEs prestored on the beam 7 to S_Beam，7Similarly, since terminal B is scheduled uplink, it is not necessary to modify the set S of CCE starting positions stored in advance, again, as {0.. 23, 28, 29, 30, 31, 32}_UeStartPosSo the set of CCE starting positions is still S_UeStartPos＝{}。

And step 404, the PDCCH adopts the activated beam to transmit.

In the embodiment of the present invention, terminal a transmits using active beam 2 at this time, and terminal B transmits using active beam 7, each using the allocated CCE on the active beam of the respective terminal.

EXAMPLE six

Based on the methods described in the first to third embodiments, fig. 8 is a third schematic view of CCE allocation of a resource scheduling method according to the third embodiment of the present invention, as shown in fig. 8, in the embodiment of the present invention, further, both the terminal a and the terminal B in fig. 8 are downlink scheduling, and the scheduling order is terminal a and terminal B, and by the resource scheduling method according to the present invention, the terminal B avoids the starting position 24 of the terminal a and starts allocation from the starting position 28, where the terminal a uses the beams 2 and 3, the terminal B uses the beams 5,6 and 7, and the terminal a and the terminal B multiplex CCEs 28 to 31.

step 501, determining preset beams of the partitioned cells.

Step 502, determining an active beam used by the terminal.

S＝func(P0，P1，...，PN)N＝7

for example, P0, P1, P2, P3, P4, P5, P6, P7 have energies of 800, 700, 11500, 10300, 200, 180, 100, 400, respectively.

If the active beam of terminal a is calculated by the algorithm as S ═ {2,3}, similarly, if the active beam of terminal B is S ═ {5,6,7 }.

Step 503, for the terminal with no intersection of the active beams, PDCCH space division can be performed, and CCE resources are multiplexed.

(1) And input conditions:

b. The downlink PDCCH index of terminal a is 16, the aggregation level is 8, and the RNTI of terminal a is 1665.

c. The downlink PDCCH index of terminal B is 13, the aggregation level is 4, and the RNTI of terminal B is 155. The air interface scheduling time at this time is 4.

(3) Starting to schedule the terminal A, the terminal A uses the CCE set S on the beam 2 firstly_Beam，2Allocating {0.. 32}, wherein the aggregation level of the terminal A is 8, calculating by a protocol formula that if the starting position is 24, using 8 CCEs of 24-31, and pre-storing a CCE starting position set S_UeStartPosNo value, so the starting position 24 is not occupied, then beam 2 can be successfully allocated. Since terminal a occupies two beams, beam 3 is again examined to determine that 24-31 of the 8 CCEs on beam 3 can be successfully allocated. Updating the set of available CCEs pre-stored on beam 2 to S_Beam，2＝{0...23，32Same update beam 3 prestores available CCE set as S_Beam，323, 32, and the set of prestored starting positions S needs to be updated at the same time_UeStartPos＝{24}。

(4) Starting to schedule the terminal B, the terminal B uses the CCE set S on the beam 5 firstly_Beam，5Assign {0.. 32}, terminal B has an aggregation level of 4, obtain a starting position calculated by a protocol formula of 24, and check a starting position set S_UeStartPosWhere 24 is found to already exist in the set of pre-stored CCE starting locations, the calculation may continue further according to the protocol formula, where the starting location is 28, at S_UeStartPosThis starting position cannot be found inside, so 4 CCEs are occupied 28, 29, 30, 31 and beam 5 can be successfully allocated. Since terminal B occupies three beams, the beam 6 and beam 7 are again examined separately, confirming that the 8 CCEs of 24-31 on beams 6 and 7 can be successfully allocated. Finally, the available CCE set prestored on the beam 5 is updated to be S_Beam，5Similarly, the set of available CCEs on beam 6 is updated to be S ═ 0.. 27, 32}, where S is the set of prestored available CCEs on beam 6_Beam，6The set of available CCEs is prestored on beam 7 as S, 0.. 27, 32}_Beam，727, 32, and the set S of pre-stored start positions needs to be updated at the same time_UeStartPos＝{24，28}。

And step 504, the PDCCH adopts the activated beam to transmit.

In the embodiment of the present invention, terminal a transmits using active beams 2 and 3 at this time, and terminal B transmits using active beams 5,6, and 7, each using the allocated CCEs on the active beam of the respective terminal.

EXAMPLE seven

Based on the methods described in the first to third embodiments, fig. 9 is a CCE allocation diagram of a resource scheduling method proposed by the embodiment of the present invention, and as shown in fig. 9, in the embodiment of the present invention, further, both the terminal a and the terminal C in fig. 9 are downlink scheduling, both the terminal B and the terminal D are uplink scheduling, and the scheduling order is terminal a, terminal B, terminal C, and terminal D, according to the resource scheduling method proposed by the present invention, the terminal a uses CCEs 24 to 31 of 8 preset beams 0 to 7, the terminal B uses CCEs 32 to 33 of beams 3 and 4, the terminal C uses CCEs 32 to 35 of beam 6 and beam 7, the terminal D uses the beam 4, the beam 6, and the CCEs 36 to 37 of beam 7, and the terminal B and the terminal C multiplex the CCEs 32 to 33.

Specifically, in the embodiment of the present invention, a specific process of the base station performing resource scheduling on the terminal a, the terminal B, the terminal C, and the terminal D may include the following steps:

step 601, determining preset wave beams of the segmented cells.

Step 602, determining an active beam used by the terminal.

S＝func(P0，P1，...，PN)N＝7

for example, P0, P1, P2, P3, P4, P5, P6, P7 have energies of 800, 12000, 10000, 500, 200, 180, 100, 400, respectively.

If the active beam of terminal a is calculated by the algorithm to be S ═ 0 to 7, similarly, if the active beam of terminal B is S ═ 3,4, the active beam of terminal C is S ═ 6,7, and the active beam of terminal D is S ═ 4,6, 7.

Step 603, for the terminal with no intersection of the active beams, PDCCH space division can be performed, and CCE resources are multiplexed.

(1) And input conditions:

a. assuming that no scheduling is performed at the moment, the set of pre-stored available CCEs before the non-scheduling at the gap moment is 0-37, and terminal a is scheduled in common and needs to transmit a full beam, the input conditions of 4 terminals, namely terminal a, terminal B, terminal C and terminal D, are as follows:

the downlink PDCCH index of the terminal A is 16, the aggregation level is 8, and the RNTI is 1883;

the uplink PDCCH index of the terminal B is 12, the aggregation level is 2, and the RNTI is 74;

the downlink PDCCH index of the terminal C is 13, the aggregation level is 4, and the RNTI is 577;

the uplink PDCCH index of the terminal D is 11, the aggregation level is 2, and the RNTI is 334;

(2) and since the pre-stored available CCE set before the air interface moment is not scheduled is 0-37, the pre-stored available CCE set S on the wave beam 0_Beam，0The CCE pre-storage available CCE set on beams 1 to 7 is equal to beam 0, i.e. CCE set on beams 0 to 7 {0 to 37}S_Beam，kK is a predetermined beam number, and at this time, a set of CCE starting locations S is pre-stored_UeStartPos＝{}。

(3) Starting to schedule the terminal A, wherein the terminal A is used for downlink common scheduling and full beam transmission, each beam is divided into CCEs, and the terminal A uses the CCE set S on the beam 0 firstly_Beam，2Allocating {0.. 37}, wherein the aggregation level of the terminal A is 8, calculating by a protocol formula that if the starting position is 24, using 8 CCEs of 24-31, and pre-storing a CCE starting position set S_UeStartPosNo value, so the starting position 24 is not occupied, then beam 0 can be successfully allocated. The beam 1 through beam 7 are again examined to determine that the 8 CCEs of 24-31 on beams 1 through 7 can be successfully allocated. Updating the set of prestored available CCEs on beams 0 to 7 to S_Beam，223, 32, the same update beam 3 has a set of available CCEs pre-stored as S_Beam，kThe set of prestored starting positions S needs to be updated at the same time, i.e., {0.. 23, 32.. 37}_UeStartPos＝{24}。

(4) Starting to schedule the terminal B, wherein the terminal B is uplink scheduling and uses a preset available CCE set S on the beam 3 firstly_Beam，3The aggregation level of the terminal B is 2, the starting position obtained by the calculation of the protocol formula is 28, and the position 28 is not in the preset available CCE set S_Beam，3In {0.. 23, 32.. 37}, the calculation can be continued one after the other according to the protocol formula, where the starting position is 30, and since the position 30 is not yet in the preset available CCE set S_Beam，3And in the {0.. 23, 32.. 37}, calculating one after the other according to the protocol formula, wherein the starting position is 32, the occupied 2 CCEs are 32 and 33, the beam 3 is successfully allocated, the beam 4 is checked again, and it is determined that the 2 CCEs of 32 and 33 on the beam 4 can be successfully allocated. Updating the preset available CCE set S for beam 3_Beam，3Similarly, the preset set S of available CCEs for beam 4 is updated {0.. 23, 34.. 37}_Beam，4Because of uplink scheduling, it is not necessary to update the set S of prestored starting positions_UeStartPos＝{24}。

(5) A terminal C for starting scheduling, and a terminal CFor downlink scheduling, the terminal C first uses the preset available CCE set S on the beam 6_Beam，6The aggregation level of the terminal C is 4, the starting position obtained by the calculation of the protocol formula is 28, and the position 28 is not in the preset available CCE set S_Beam，6In {0.. 23, 32.. 37}, the calculation can continue to be performed one after another according to the protocol formula, where the starting position is 32, the 4 CCEs occupied are 32, 33, 34, and 35, the beam 6 is successfully allocated, the beam 7 is checked again, and it is determined that the 4 CCEs of 32, 33, 34, and 35 on the beam 7 can be successfully allocated. Updating the preset available CCE set S for beam 6_Beam，6Similarly, the preset set S of available CCEs for beam 7 is updated {0.. 23, 36, 37}, and then_Beam，7Because of downlink scheduling, the set S of prestored start positions needs to be updated (0.. 23, 36, 37)_UeStartPos＝{24，32}。

(6) Starting to schedule the terminal D, wherein the terminal D is uplink scheduling and uses a preset available CCE set S on the beam 4 firstly_Beam，4Allocating {0.. 23, 34.. 37}, wherein the aggregation level of the terminal D is 2, calculating by using a protocol formula that if the starting position is 32, since the position 32 is not in the preset available CCE set S_Beam，4And the calculation is continued to be carried out one after the other according to the protocol formula, the starting position is 34, the 2 CCEs are occupied by 34 and 35, and the beam 4 is successfully distributed. The beam 6 is checked again to determine the preset available CCE set S on the beam 6_Beam，6There is no position 34 in {0.. 23, 36, 37}, so the beam 6 continues to push back by one according to the protocol formula, at this time, the starting position is 36, the occupied 2 CCEs are 36, 37, the beam 6 is successfully allocated, and similarly, the preset available CCE set S of the beam 7 is_Beam，7Also, 2 CCEs can be dropped as 36, 37, and then beam 7 allocation is successful. Updating the preset available CCE set S for beam 4_Beam，4Similarly, the predetermined set S of available CCEs for beam 6 is updated, i.e., {0.. 23, 34, 35}_Beam，6The preset set S of available CCEs for beam 7 is updated again {0.. 23}_Beam，7Because of uplink scheduling, it is not necessary to update the set of prestored starting positions S ═ 0.. 23}_UeStartPos＝{24，32}。

And step 604, sending the PDCCH by adopting the activated beam.

In the embodiment of the invention, a terminal A transmits by using full beams, namely beams 0-7, a terminal B transmits by using active beams 3 and 4, a terminal C transmits by using active beams 6 and 7, a terminal D transmits by using active beams 4,6 and 7, and each terminal uses the allocated CCE of the active beam.

Example eight

Based on the same inventive concept of the first to seventh embodiments, fig. 10 is a schematic structural diagram of a base station according to the first embodiment of the present invention, and as shown in fig. 10, a base station 0 according to the first embodiment of the present invention may include a determining unit 01, an obtaining unit 02, an updating unit 03, and a scheduling unit 04.

The determining unit 01 is configured to determine an activated beam corresponding to a terminal to be scheduled from preset beams; the terminal to be scheduled is one terminal which is not subjected to resource scheduling and has the highest scheduling priority in the plurality of terminals.

An obtaining unit 02, configured to, after the determining unit 01 determines an active beam corresponding to a terminal to be scheduled from a preset beam, obtain a scheduling parameter corresponding to the terminal to be scheduled according to an aggregation level corresponding to the terminal to be scheduled, the active beam, a pre-stored CCE initial position set corresponding to the active beam, and a pre-stored available CCE set corresponding to the active beam; wherein the scheduling parameters comprise a CCE starting position and a CCE set corresponding to the active beam; any one of the active beams corresponds to one CCE starting position and one CCE set.

An updating unit 03, configured to update the pre-stored CCE starting position set according to the CCE starting position after the obtaining unit 02 obtains the scheduling parameter corresponding to the terminal to be scheduled according to the aggregation level corresponding to the terminal to be scheduled, the activation beam, the pre-stored CCE starting position set corresponding to the activation beam, and the pre-stored available CCE set corresponding to the activation beam, so as to complete a CCE allocation procedure for the terminal to be scheduled.

The obtaining unit 02 is further configured to update the pre-stored CCE starting position set according to the CCE starting position in the updating unit 03, and continue to execute the CCE allocation procedure on a next terminal to be scheduled in the plurality of terminals until a plurality of scheduling parameters corresponding to the plurality of terminals are obtained after the pre-stored available CCE set is updated according to the CCE set; wherein one terminal corresponds to one scheduling parameter.

A scheduling unit 04, configured to perform resource scheduling on the multiple terminals according to the multiple scheduling parameters after the obtaining unit 02 obtains the multiple scheduling parameters corresponding to the multiple terminals.

In an embodiment of the present invention, further, the obtaining unit 02 is specifically configured to obtain an initial CCE location corresponding to the terminal to be scheduled; determining the CCE starting position according to the initial CCE position, the pre-stored CCE starting position set and the pre-stored available CCE set; and determining the CCE set according to the CCE starting position and the aggregation level.

In an embodiment of the present invention, further, the obtaining unit 02 is further specifically configured to determine, when the initial CCE location exists in the set of pre-stored CCE starting locations, the CCE starting location according to the set of pre-stored available CCEs and the aggregation level; and when the initial CCE position does not exist in the set of pre-stored CCE starting positions, determining the CCE starting positions according to the initial CCE position and the set of pre-stored available CCEs.

In an embodiment of the present invention, further, the obtaining unit 02 is further configured to, before determining an active beam corresponding to a terminal to be scheduled from a preset beam, perform beam division according to a range of departure angles corresponding to the plurality of terminals to obtain the preset beam.

In an embodiment of the present invention, further, the determining unit 01 is specifically configured to calculate a projection energy ratio of the terminal to be scheduled in the preset beam; and determining beams of the preset beams, the projection energy ratio of which is greater than a preset ratio threshold value, as the activated beams.

In an embodiment of the present invention, further, the updating unit 03 is specifically configured to not change the set of pre-stored CCE starting positions when the terminal to be scheduled is uplink scheduling; and when the terminal to be scheduled is in downlink scheduling, adding the CCE starting position to the pre-stored CCE starting position set.

In an embodiment of the present invention, further, the updating unit 03 is further specifically configured to remove the CCE set from the pre-stored available CCE set.

In an embodiment of the present invention, further, the scheduling unit 04 is specifically configured to allocate CCEs to the plurality of terminals according to the plurality of CCE sets corresponding to the plurality of scheduling parameters; and transmitting PDCCH to the plurality of terminals through the CCE.

Based on the same inventive concept of the first to seventh embodiments, fig. 11 is a schematic structural diagram of a second composition structure of the base station according to the second embodiment of the present invention, and as shown in fig. 11, the base station 0 according to the second embodiment of the present invention may further include a processor 05, a memory 06 storing executable instructions of the processor 05, a communication interface 07, and a bus 08 for connecting the processor 05, the memory 06, and the communication interface 07.

In an embodiment of the present invention, the Processor 05 may be at least one of an Application Specific Integrated Circuit (ASIC), a Digital Signal Processor (DSP), a Digital Signal Processing Device (DSPD), a ProgRAMmable Logic Device (PLD), a Field ProgRAMmable Gate Array (FPGA), a CPU, a controller, a microcontroller, and a microprocessor. It will be appreciated that the electronic devices used to implement the processor functions described above may be other devices, and embodiments of the present invention are not limited in particular. The base station 0 may further comprise a memory 06, which memory 06 may be connected to the processor 05, wherein the memory 06 is for storing executable program code comprising computer operating instructions, the memory 06 may comprise a high speed RAM memory and may further comprise a non-volatile memory, e.g. at least two disk memories.

In the embodiment of the present invention, the bus 08 is used to connect the communication interface 07, the processor 05, the SIM card unit 01, and the memory 06 and the intercommunication among these devices.

In an embodiment of the present invention, memory 06 is used for storing instructions and data.

The processor 05 is configured to determine an activated beam corresponding to a terminal to be scheduled from preset beams; the terminal to be scheduled is one terminal which is not subjected to resource scheduling and has the highest scheduling priority in the plurality of terminals; obtaining scheduling parameters corresponding to the terminal to be scheduled according to the aggregation level corresponding to the terminal to be scheduled, the activation beam, the pre-stored CCE starting position set corresponding to the activation beam and the pre-stored available CCE set corresponding to the activation beam; wherein the scheduling parameters comprise a CCE starting position and a CCE set corresponding to the active beam; any one of the active beams corresponds to one CCE starting position and one CCE set; updating the pre-stored CCE starting position set according to the CCE starting position, and updating the pre-stored available CCE set according to the CCE set so as to complete a CCE allocation process of the terminal to be scheduled; continuing to execute the CCE allocation process on the next terminal to be scheduled in the plurality of terminals until a plurality of scheduling parameters corresponding to the plurality of terminals are obtained; wherein, one terminal corresponds to one scheduling parameter; and scheduling resources for the plurality of terminals according to the plurality of scheduling parameters.

In practical applications, the Memory 06 may be a volatile first Memory (volatile Memory), such as a Random-Access Memory (RAM); or a non-volatile first Memory (non-volatile Memory), such as a Read-Only first Memory (ROM), a flash Memory (flash Memory), a Hard Disk Drive (HDD) or a Solid-State Drive (SSD); or a combination of first memories of the above kind and provides instructions and data to the processor 05.

In addition, each functional unit in this embodiment may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and not sold or used as an independent product, may be stored in a computer readable storage medium, and based on such understanding, a part of the technical solution of the present embodiment that essentially contributes to the prior art or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium, which includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) or a processor to execute all or part of the steps of the method of the present embodiment. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The embodiment of the invention provides a base station, which determines an activated beam corresponding to a terminal to be scheduled from preset beams; the terminal to be scheduled is one terminal which is not subjected to resource scheduling and has the highest scheduling priority in the plurality of terminals; according to the aggregation level corresponding to the terminal to be scheduled, activating the wave beam, activating a prestored CCE starting position set corresponding to the wave beam and activating a prestored available CCE set corresponding to the wave beam to obtain a scheduling parameter corresponding to the terminal to be scheduled; the scheduling parameters comprise CCE starting positions and CCE sets corresponding to the activated beams; any one of the active beams corresponds to one CCE starting position and one CCE set; updating a pre-stored CCE initial position set according to the CCE initial position, and updating a pre-stored available CCE set according to the CCE set so as to complete a CCE allocation process of the terminal to be scheduled; continuing to execute a CCE distribution process on a next terminal to be scheduled in the plurality of terminals until a plurality of scheduling parameters corresponding to the plurality of terminals are obtained; wherein, one terminal corresponds to one scheduling parameter; and according to the scheduling parameters, performing resource scheduling on the terminals. That is to say, in the base station provided in the embodiment of the present invention, in the FDD system, the base station may determine CCE starting positions and CCE sets in each active beam corresponding to each of the plurality of terminals by using an active beam in a preset beam, and update the set of prestored CCE starting positions and the set of prestored available CCEs according to the CCE starting positions and CCE sets corresponding to different terminals, thereby implementing space division multiplexing of CCEs, so as to effectively solve the problem that CCE resources are limited in a CCE scheduling policy of masivemimo, further increase the number of space-divided terminals, ensure that the space-time CCE resources of masivemimo do not become a bottleneck, and improve the space-division performance of masivemimo.

The embodiment of the invention provides a computer-readable storage medium, which stores a program thereon, and is applied to a base station, wherein the program is executed by a processor to implement the method according to the first embodiment to the seventh embodiment.

Specifically, the program instructions corresponding to a resource scheduling method in the present embodiment may be stored on a storage medium such as an optical disc, a hard disc, a usb disk, or the like, and when the program instructions corresponding to a resource scheduling method in the storage medium are read or executed by an electronic device, the method includes the following steps:

obtaining scheduling parameters corresponding to the terminal to be scheduled according to the aggregation level corresponding to the terminal to be scheduled, the activation beam, the pre-stored CCE starting position set corresponding to the activation beam and the pre-stored available CCE set corresponding to the activation beam; wherein the scheduling parameters comprise a CCE starting position and a CCE set corresponding to the active beam; any one of the active beams corresponds to one CCE starting position and one CCE set;

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.

The present invention has been described with reference to flowchart illustrations and/or block diagrams of implementations of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart block or blocks and/or flowchart block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart block or blocks in the flowchart and/or block diagram block or blocks.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.

Claims

1. A method for scheduling resources, the method comprising:

2. The method according to claim 1, wherein the obtaining the scheduling parameters corresponding to the terminal to be scheduled according to the aggregation level corresponding to the terminal to be scheduled, the activation beam, the set of CCE starting locations pre-stored for the activation beam, and the set of CCE available pre-stored for the activation beam comprises:

3. The method of claim 2, wherein the determining the CCE starting location based on the initial CCE location, the set of pre-stored CCE starting locations, and the set of pre-stored available CCEs comprises:

4. The method according to claim 1, wherein before determining the active beam corresponding to the terminal to be scheduled from the preset beams, the method further comprises:

5. The method according to claim 1, wherein the determining an active beam corresponding to the terminal to be scheduled from a preset beam comprises:

6. The method of claim 1, wherein said updating the set of pre-stored CCE starting locations in accordance with the CCE starting location comprises:

7. The method of claim 1, wherein said updating the set of pre-stored available CCEs according to the set of CCEs comprises:

removing the set of CCEs from the set of pre-stored available CCEs.

8. The method of claim 1, wherein the transmitting data to the plurality of terminals according to the plurality of scheduling parameters comprises:

9. A base station comprising a processor, a memory storing instructions executable by the processor, a communication interface, and a bus connecting the processor, the memory, and the communication interface, wherein the instructions, when executed by the processor implement the method of any one of claims 1-8.

10. A computer-readable storage medium, on which a program is stored, for use in a base station, characterized in that the program, when executed by a processor, implements the method according to any one of claims 1-8.