CN116095837A

CN116095837A - User scheduling method in millimeter wave system, millimeter wave base station and storage medium

Info

Publication number: CN116095837A
Application number: CN202111306411.XA
Authority: CN
Inventors: 齐丙花; 骆纯
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2021-11-05
Filing date: 2021-11-05
Publication date: 2023-05-09

Abstract

The invention discloses a method for scheduling users in a millimeter wave system, a millimeter wave base station and a storage medium, which are used for solving the technical problem that few users are scheduled in the millimeter wave system in the prior art, and the method comprises the following steps: classifying the time slots with scheduling relation or feedback relation in the scheduling time sequence into the same time slot group; the method comprises the steps of performing cooperative selection on analog beams of time slots in a time slot group to obtain a beam set of each time slot; the beam set comprises a plurality of analog beams which are transmitted simultaneously, and the number of the analog beams in the beam set is the number of the beams which are transmitted or received simultaneously by the millimeter wave base station in the same coverage area; determining a schedulable time slot from the time slot group and a schedulable beam set consisting of schedulable analog beams in the beam set corresponding to the schedulable time slot; and scheduling all the user terminals corresponding to the schedulable beam set.

Description

User scheduling method in millimeter wave system, millimeter wave base station and storage medium

Technical Field

The present invention relates to the field of millimeter wave communication, and in particular, to a method for user scheduling in a millimeter wave system, a millimeter wave base station, and a storage medium.

Background

Fifth generation mobile communication (5th Generation Mobile Communication Technology,5G) supports both low frequency bands and high frequency bands (millimeter waves). Currently, low frequency bands are mainly used in mobile communication systems.

However, the phenomenon of shortage of low-band spectrum resources is becoming serious, and support for high data rate services is greatly limited. The millimeter wave frequency band has a large amount of available spectrum resources, so that the increasingly serious spectrum resource pressure can be fully relieved, and the requirements for high-bandwidth and high-rate service support are met.

However, in the millimeter wave system, the path loss of the millimeter wave signal is large, the downlink will use a plurality of narrow beams for transmission, and the uplink will use a plurality of narrow beams for reception. Different users may be covered by different beams. If only 1 beam is used for uplink and downlink at a certain time, only users covered by the beam can be scheduled, so that fewer users can be scheduled. And, while transmitting uplink data and downlink data, the coordination of uplink and downlink beams is also required; even when the uplink and downlink beams do not match, no user can be scheduled.

In view of this, how to schedule more users in the millimeter wave system becomes a technical problem to be solved.

Disclosure of Invention

The invention provides a user scheduling method in a millimeter wave system, a millimeter wave base station and a storage medium, which are used for solving the technical problem that few scheduling users in the millimeter wave system exist in the prior art.

In order to solve the above technical problems, a method for scheduling users in a millimeter wave system according to an embodiment of the present invention is applied to a millimeter wave base station, and the technical scheme of the method is as follows:

classifying the time slots with scheduling relation or feedback relation in the scheduling time sequence into the same time slot group;

the analog beams of the time slots in the time slot group are cooperatively selected to obtain a beam set of each time slot; the beam set comprises a plurality of analog beams which are transmitted simultaneously, and the number of the analog beams in the beam set is the number of the beams which are transmitted or received simultaneously by the millimeter wave base station in the same coverage area;

determining a schedulable time slot from the time slot group and a schedulable beam set consisting of schedulable analog beams in the beam set corresponding to the schedulable time slot; wherein the schedulable time slot is a time slot having the scheduling relation or the feedback relation and having at least one identical beam index, and the schedulable analog beam is an analog beam having the identical beam index;

And scheduling all the user terminals corresponding to the schedulable beam set.

A possible implementation manner, performing cooperative selection on analog beams of time slots in the time slot group to obtain a beam set of each time slot, including:

if a plurality of analog beams of each time slot in the time slot group are all determined, selecting the determined analog beams as analog beams of the corresponding time slots;

if at least one of the plurality of analog beams of any one of the time slots in the time slot group is not determined, selecting the plurality of analog beams as a corresponding first analog beam set for the time slots in the first direction with the small number of time slots in the time slot group, and then selecting the plurality of analog beams as a corresponding second analog beam set for the time slots in the second direction with the large number of time slots in the time slot set.

In one possible implementation manner, the method further includes, before performing cooperative selection on analog beams of the time slots in the time slot group to obtain a beam set of each time slot:

respectively determining beam queues to be scheduled corresponding to two data transmission directions in the millimeter wave base station; each beam to be scheduled in the beam queue to be scheduled has uniqueness, and is arranged according to the highest time domain priority of the corresponding beam to be scheduled in the corresponding data queue to be scheduled, and one data queue to be scheduled corresponds to the data to be scheduled of at least one user terminal.

A possible implementation manner, determining beam queues to be scheduled corresponding to two data transmission directions in the millimeter wave base station respectively includes:

acquiring a data queue to be scheduled corresponding to the same data transmission direction in each cell in the same coverage area;

collecting all beams to be scheduled corresponding to the data queues to be scheduled in the same data transmission direction according to the time domain priority of the corresponding data queues to be scheduled, and obtaining a beam set to be scheduled of each time domain priority;

removing repeated beams to be scheduled in each beam set to be scheduled and beams to be scheduled without data to be scheduled, and obtaining an effective beam set to be scheduled of each time domain priority;

and arranging the beams to be scheduled in all the effective beams to be scheduled set corresponding to the two data transmission directions according to the corresponding highest time domain priority, and obtaining a beam queue to be scheduled corresponding to the data transmission directions.

A possible implementation manner, selecting a plurality of analog beams as a first analog beam set for a time slot in a first direction with a small number of time slots in the time slot group, including:

if each first-direction analog beam in the first analog beam set is determined, taking the determined analog beam as the first-direction analog beam in the first analog beam set;

If at least one of the first analog beam sets is undetermined, selecting a beam to be scheduled which accords with a first beam selection condition as an undetermined first-direction analog beam; and the first beam selection condition is that the beam to be scheduled is different from all the determined first-direction analog beams in the non-empty beam queue to be scheduled, and the beam to be scheduled with the highest priority meets the isolation requirement with the determined first-direction analog beams.

In one possible implementation manner, selecting a beam to be scheduled meeting a first beam selection condition from the non-empty beam queue to be scheduled as an undetermined first direction analog beam, including:

when the beam queues to be scheduled corresponding to the two data transmission directions are not empty, selecting one corresponding beam queue to be scheduled from the two data transmission directions according to a preset proportionality coefficient, and selecting a beam to be scheduled meeting the first beam selection condition as the undetermined first-direction analog beam; wherein the value range of the preset proportionality coefficient is 0 to 1.

In one possible implementation manner, according to a preset scaling factor, selecting a corresponding beam queue to be scheduled from the two data transmission directions includes:

When the preset proportionality coefficient is 0, selecting a beam queue to be scheduled, wherein the data transmission direction is the downlink direction;

when the preset proportionality coefficient is 1, selecting a beam queue to be scheduled, wherein the data transmission direction is the uplink direction;

and when the preset proportionality coefficient is a decimal between 0 and 1, selecting one beam queue to be scheduled in the two data transmission directions according to the preset proportionality coefficient.

A possible implementation manner, selecting a plurality of analog beams as a corresponding second analog beam set for a time slot in a second direction in which the time slot set includes a large number of time slots, includes:

if the second analog beam sets are all determined, taking the determined analog beams as second-direction analog beams in the second analog beam sets;

if at least one of the second analog beam sets is not determined, selecting a first direction analog wave number which is not selected and meets a second beam selection condition from the first analog beam set as an undetermined second direction analog beam; the second beam selection condition is that the first simulation beam set is different from all the determined simulation beams in the second direction, the first direction simulation beams which meet the isolation requirement with the determined simulation beams in the second direction and have the highest priority.

A possible implementation manner, selecting, from the first set of analog beams, a first analog wave number that is not selected and meets a second beam selection condition as an undetermined second direction analog beam, includes:

if none of the second analog beams in the second analog beam set is determined, taking the first analog beam set as the second analog beam set;

and if part of the second direction simulation beams in the second simulation beam set are not determined, selecting the first direction simulation beams which are not selected and meet the second beam selection condition from the first simulation beam set as corresponding undetermined second direction simulation beams until all the undetermined second direction simulation beams are selected, or none of the first direction simulation beams which are not selected and meet the second beam selection condition in the first simulation beam set.

A possible implementation manner, determining a schedulable time slot from the time slot group, and a schedulable beam set formed by schedulable analog beams in a beam set corresponding to the schedulable time slot, includes:

if a first intersection exists between a beam set corresponding to an uplink time slot in the time slot group and a beam set of a downlink time slot where a scheduling corresponding PDCCH is located, determining that the uplink time slot can be scheduled on an analog beam in the first intersection, and determining the first intersection as the schedulable beam set;

If a second intersection exists between the beam set corresponding to the downlink time slot in the time slot group and the beam set of the uplink time slot where the corresponding feedback information is located, determining that the downlink time slot can be scheduled on the analog beam in the second intersection, and determining the second intersection as the schedulable beam set.

In a second aspect, an embodiment of the present invention further provides a millimeter wave base station, including:

memory, transceiver, processor:

a memory for storing a computer program; a transceiver for transceiving data under control of the processor; a processor for reading the computer program in the memory and performing the following operations:

In one possible embodiment, the processor is further configured to:

the method comprises the steps of performing cooperative selection on analog beams of time slots in the time slot group, and respectively determining to-be-scheduled beam queues corresponding to two data transmission directions in a millimeter wave base station before obtaining a beam set of each time slot; each beam to be scheduled in the beam queue to be scheduled has uniqueness, and is arranged according to the highest time domain priority of the corresponding beam to be scheduled in the corresponding data queue to be scheduled, and one data queue to be scheduled corresponds to the data to be scheduled of at least one user terminal.

In one possible embodiment, the processor is further configured to:

In a third aspect, an embodiment of the present invention provides a millimeter wave base station, including:

a time slot group unit, configured to group time slots having a scheduling relationship or a feedback relationship in a scheduling timing sequence into the same time slot group;

the cooperative selection unit is used for performing cooperative selection on the analog beams of the time slots in the time slot group to obtain a beam set of each time slot; the beam set comprises a plurality of analog beams which are transmitted simultaneously, and the number of the analog beams in the beam set is the number of the beams which are transmitted or received simultaneously by the millimeter wave base station in the same coverage area;

A determining unit, configured to determine a schedulable time slot from the time slot group, and a schedulable beam set formed by schedulable analog beams in a beam set corresponding to the schedulable time slot; wherein the schedulable time slot is a time slot having the scheduling relation or the feedback relation and having at least one identical beam index, and the schedulable analog beam is an analog beam having the identical beam index;

and the scheduling unit is used for scheduling all the user terminals corresponding to the schedulable beam set.

In a possible embodiment, the co-selection unit is further configured to:

In a possible embodiment, the determining unit is further configured to:

In a fourth aspect, embodiments of the present invention also provide a processor-readable storage medium storing a computer program for causing the processor to perform the method according to the first aspect.

Through the technical scheme in the one or more embodiments of the present invention, the embodiments of the present invention have at least the following technical effects:

in the embodiment provided by the invention, the time slots with the scheduling relation or the feedback relation in the scheduling time sequence are classified into the same time slot group; the method comprises the steps of performing cooperative selection on analog beams of time slots in a time slot group to obtain a beam set of each time slot, enabling the time slots with scheduling and feedback relations to be selected to be paired analog beams, determining schedulable time slots from the time slot group, determining a schedulable beam set consisting of schedulable analog beams in the beam set corresponding to the schedulable time slots, and scheduling all user terminals corresponding to the schedulable beam set, so that the millimeter wave base station can schedule more users; the beam set comprises a plurality of analog beams which are transmitted simultaneously, and the number of the analog beams in the beam set is the number of the beams which are transmitted or received simultaneously by the millimeter wave base station in the same coverage area; the schedulable time slots are time slots having a scheduling relationship or a feedback relationship and having at least one identical beam index, and the schedulable analog beam is an analog beam having the identical beam index.

Drawings

Fig. 1 is a flowchart of a user scheduling method in a millimeter wave system according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a two-cycle frame structure according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a millimeter wave base station according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of another millimeter wave base station according to an embodiment of the present invention.

Detailed Description

In the embodiment of the invention, the term "and/or" describes the association relation of the association objects, which means that three relations can exist, for example, a and/or B can be expressed as follows: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.

The term "plurality" in the embodiments of the present application means two or more, and other adjectives are similar thereto.

The following description of the technical solutions in the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

The technical scheme provided by the embodiment of the application can be suitable for various systems, in particular to a 5G system. For example, suitable systems may be global system for mobile communications (global system of mobile communication, GSM), code division multiple access (code division multiple access, CDMA), wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) universal packet Radio service (general packet Radio service, GPRS), long term evolution (long term evolution, LTE), LTE frequency division duplex (frequency division duplex, FDD), LTE time division duplex (time division duplex, TDD), long term evolution-advanced (long term evolution advanced, LTE-a), universal mobile system (universal mobile telecommunication system, UMTS), worldwide interoperability for microwave access (worldwide interoperability for microwave access, wiMAX), 5G New air interface (New Radio, NR), and the like. Terminal devices and network devices are included in these various systems. Core network parts such as evolved packet system (Evloved Packet System, EPS), 5G system (5 GS) etc. may also be included in the system.

The terminal device according to the embodiments of the present application may be a device that provides voice and/or data connectivity to a user, a handheld device with a wireless connection function, or other processing device connected to a wireless modem, etc. The names of the terminal devices may also be different in different systems, for example in a 5G system, the terminal devices may be referred to as User Equipment (UE). The wireless terminal device may communicate with one or more Core Networks (CNs) via a radio access Network (Radio Access Network, RAN), which may be mobile terminal devices such as mobile phones (or "cellular" phones) and computers with mobile terminal devices, e.g., portable, pocket, hand-held, computer-built-in or vehicle-mounted mobile devices that exchange voice and/or data with the radio access Network. Such as personal communication services (Personal Communication Service, PCS) phones, cordless phones, session initiation protocol (Session Initiated Protocol, SIP) phones, wireless local loop (Wireless Local Loop, WLL) stations, personal digital assistants (Personal Digital Assistant, PDAs), and the like. The wireless terminal device may also be referred to as a system, subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile), remote station (remote station), access point (access point), remote terminal device (remote terminal), access terminal device (access terminal), user terminal device (user terminal), user agent (user agent), user equipment (user device), and the embodiments of the present application are not limited.

The network device according to the embodiment of the present application may be a millimeter wave base station, where the millimeter wave base station may include a plurality of cells that provide services for the terminal. Depending on the particular application, a millimeter-wave base station may also be referred to as an access point or may be a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminal devices, or other names. The network device may be operable to exchange received air frames with internet protocol (Internet Protocol, IP) packets as a router between the wireless terminal device and the rest of the access network, which may include an Internet Protocol (IP) communication network. The network device may also coordinate attribute management for the air interface. For example, the network device according to the embodiments of the present application may be a network device (Base Transceiver Station, BTS) in a global system for mobile communications (Global System for Mobile communications, GSM) or code division multiple access (Code Division Multiple Access, CDMA), a network device (NodeB) in a wideband code division multiple access (Wide-band Code Division Multiple Access, WCDMA), an evolved network device (evolutional Node B, eNB or e-NodeB) in a long term evolution (long term evolution, LTE) system, a 5G base station (gNB) in a 5G network architecture (next generation system), a home evolved base station (Home evolved Node B, heNB), a relay node (relay node), a home base station (femto), a pico base station (pico), and the like. In some network structures, the network device may include a Centralized Unit (CU) node and a Distributed Unit (DU) node, which may also be geographically separated.

Multiple-input Multiple-output (Multi Input Multi Output, MIMO) transmissions may each be made between a network device and a terminal device using one or more antennas, and the MIMO transmissions may be Single User MIMO (SU-MIMO) or Multiple User MIMO (MU-MIMO). The MIMO transmission may be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, or may be diversity transmission, precoding transmission, beamforming transmission, or the like, depending on the form and number of the root antenna combinations.

The embodiment of the application provides a beam selection method, a millimeter wave base station and a storage medium, which are used for solving the technical problem that less scheduling users exist in a millimeter wave system in the prior art.

The method and the device are based on the same application, and because the principles of solving the problems by the method and the device are similar, the implementation of the device and the method can be referred to each other, and the repetition is not repeated.

Referring to fig. 1, an embodiment of the present invention provides a method for scheduling users in a millimeter wave system, which is applied to a millimeter wave base station, and the processing procedure of the method is as follows.

Step 101: and classifying the time slots with the scheduling relation or the feedback relation in the scheduling time sequence into the same time slot group.

Fig. 2 is a schematic diagram of a two-cycle frame structure according to an embodiment of the invention.

In fig. 2, each period is 0.625ms, the frame structure adopted is a DDDSU frame structure, and the 2 periods include 10 time slots (0-9), wherein the time slot types of time slots 0-2 and 5-7 are downlink time slots (marked as D), the time slot types of

time slots

4 and 9 are uplink time slots (marked as U), and the time slot types of

time slots

3 and 8 are special time slots (marked as S).

In fig. 2, acknowledgement/negative acknowledgement (ACK/NACK) information of time slot 0 and time slot 1 needs to be fed back through time slot 4, ACK/NACK of time slot 2 and time slot 3, (downlink) time slot 5 and time slot 6 needs to be fed back through time slot 9, and a scheduled physical downlink control channel (Physical Downlink Control Channel, PDCCH) corresponding to time slot 9 needs to be transmitted in time slot 6.

Taking the time slot 9 as an example, according to the scheduling/feedback relation in the scheduling sequence, the

time slots

9, 2, 3, 5 and 6 need to be classified into the same time slot group, and may be denoted as {

time slot

9, 2, 3, 5 and 6}.

After the time slots having the scheduling relationship or the feedback relationship in the scheduling sequence are grouped into the same time slot group, step 102 may be performed.

Step 102: the method comprises the steps of performing cooperative selection on analog beams of time slots in a time slot group to obtain a beam set of each time slot; the beam set comprises a plurality of analog beams which are transmitted simultaneously, and the number of the analog beams in the beam set is the number of the beams which are transmitted or received simultaneously by the millimeter wave base station in the same coverage area.

In one possible implementation, before the analog beams of the time slots in the time slot group are cooperatively selected, an alternative analog beam (called a beam to be scheduled in the present invention) needs to be determined, which is specifically implemented by the following ways:

respectively determining beam queues to be scheduled corresponding to two data transmission directions in the millimeter wave base station; each beam to be scheduled in the beam queue to be scheduled has uniqueness, and is arranged according to the highest time domain priority of the corresponding beam to be scheduled in the corresponding data queue to be scheduled, and one data queue to be scheduled corresponds to the data to be scheduled of at least one user terminal. The data transmission directions include an uplink direction and a downlink direction, and the two data transmission directions refer to the uplink direction and the downlink direction.

The above-mentioned determination of the beam queues to be scheduled corresponding to the two data transmission directions in the millimeter wave base station can be implemented by the following ways:

Acquiring a data queue to be scheduled corresponding to the same data transmission direction in each cell in the same coverage area; collecting all beams to be scheduled corresponding to the data queues to be scheduled in the same data transmission direction according to the time domain priority of the corresponding data queues to be scheduled, and obtaining a beam set to be scheduled of each time domain priority; removing repeated beams to be scheduled in each beam set to be scheduled and beams to be scheduled without data to be scheduled, and obtaining an effective beam set to be scheduled of each time domain priority; and arranging the beams to be scheduled in all the effective beams to be scheduled corresponding to the two data transmission directions respectively according to the corresponding highest time domain priority, and obtaining a beam queue to be scheduled corresponding to the data transmission directions.

For example, the millimeter wave base station has 8 cells in the same coverage area, and there are users to be scheduled in the uplink direction and the downlink direction of the 8 cells, and assuming that there are 16 beam indexes (denoted as analog beams 0 to 15) in the network, and data to be scheduled is all available under each beam index, the beams to be scheduled in the downlink direction include analog beams 0 to 16, and they are grouped according to the time domain priorities of the corresponding data queues to be scheduled (the time domain priorities are divided into 9 levels, the highest level 0 and the lowest level 8), so as to obtain a set of beams to be scheduled for each time domain priority in the downlink direction, as shown in table 1.

TABLE 1

Time domain priority	Beam to be scheduled
		0	Analog beam 5, analog beam 6
1	Analog beam 4, analog beam 5
		2	Analog beam 3, analog beam 2
3	Analog beam 2, analog beam 1, analog beam 2
		4	Analog beam 13, analog beam 14, analog beam 15
5	Analog beam 10, analog beam 11, analog beam 12
		6	Analog beam 7, analog beam 8, analog beam 9
7	Analog beam 0, analog beam 2, analog beam 6
		8	Analog beam 3, analog beam 4, analog beam 5

In table 1, the beam set to be scheduled with the time domain priority of 0 is composed of an analog beam 5 and an analog beam 6, the beam set to be scheduled with the time domain priority of 1 is composed of an analog beam 4 and an analog beam 5, the other beam sets to be scheduled with the time domain priority are similar. Then, the repeated beams to be scheduled in the beam set to be scheduled of each time domain priority are removed (for example, the analog beam 2 appears repeatedly for 2 times in the beam to be scheduled of the

time domain priority

3, and 1 analog beam 2 is removed), and since each beam to be scheduled in the table 1 has data, no beam to be scheduled without data to be scheduled needs to be removed, and the obtained effective beam set to be scheduled of each time domain priority is shown in the table 2.

TABLE 2

Arranging the beams to be scheduled in the set of 9 effective beams to be scheduled with the data transmission direction as the downlink direction according to the corresponding highest time domain priority, for example, the highest time domain priority of the analog beam 5 and the highest time domain priority of the analog beam 6 in table 2 are 0, the highest time domain priority of the analog beam 4 is 1, and the queues of the beams to be scheduled in the downlink direction are obtained after being arranged according to the highest time domain priority: { analog beam 5, analog beam 6, analog beam 4, analog beam 3, analog beam 2, analog beam 13, analog beam 14, analog beam 15, analog beam 10, analog beam 11, analog beam 12, analog beam 7, analog beam 8, analog beam 9, analog beam 0}.

Similarly, the beam queues to be scheduled in the uplink direction can be obtained, and after the beam queues to be scheduled in the uplink direction and the downlink direction are obtained, the analog beams of the time slots in the time slot group can be cooperatively selected, so that the beam set of each time slot is obtained as follows:

if a plurality of analog beams of each time slot in the time slot group are all determined, selecting the determined analog beams as analog beams of the corresponding time slots; if at least one of the plurality of analog beams of any one of the time slots in the time slot group is not determined, selecting the plurality of analog beams as a corresponding first analog beam set for the time slots in the first direction with the small number of time slots in the time slot group, and then selecting the plurality of analog beams as a corresponding second analog beam set for the time slots in the second direction with the large number of time slots in the time slot group.

At least one of the plurality of analog beams for any one of the above-described time slot groups is undetermined, and may include the following:

first case: there is an undetermined analog beam for only one slot in the group of slots.

The time slots in which the undetermined analog beams exist may be time slots in the first direction in which the number of time slots is small, or time slots in the second direction in which the number of time slots is large.

Second case: there are multiple time slots in the time slot group where there are undetermined analog beams.

The time slots in which the undetermined analog beams exist may be all time slots in the second direction with a larger number of time slots, or may be a part of time slots in the first direction with a smaller number of time slots and time slots in the second direction with a larger number of time slots.

For example, taking the frame structure in fig. 2 as an example, a time slot group is determined as { time slot 9, time slot 2, time slot 3, time slot 5, time slot 6}. Assuming that the analog beams of 5 slots in the above-described slot group are all determined, if slot 9 uses analog beam 1, analog beam 2 of the millimeter wave base station, slot 2 and slot 3 use analog beam 2 and analog beam 5 of the millimeter wave base station, and slot 5 and slot 6 use analog beam 1 and analog beam 5 of the millimeter wave base station, each slot in the slot group directly uses the above-described respective determined analog beams.

For another example, still taking the frame structure in fig. 2 as an example, a time slot group is determined as { time slot 9, time slot 2, time slot 3, time slot 5, time slot 6}, where time slot 9 is an uplink time slot, and time slot 2, time slot 3, time slot 5, and time slot 6 are downlink time slots. Assuming that the slot 9 has determined to use the analog beam 1 in the above-described slot group, the slot 3 has determined to use the analog beam 3, and the slot 6 has determined to use the

analog beam

3, 2 analog beams can be transmitted/received at the same time in the millimeter wave base station. Since there are 1 uplink time slot and 4 downlink time slots in the above time slot group, the first direction with a smaller number of time slots in the above time slot group is the direction of the uplink time slot (or called the uplink direction), the second direction with a larger number of time slots is the direction of the downlink time slot (or called the downlink direction), and an undetermined analog beam (assuming that the beam queue to be scheduled corresponding to the first direction is not empty, and analog beam 2 is selected from the beam queues to be scheduled corresponding to the first direction) may be selected for time slot 9 in the first direction, where the first analog beam set is composed of analog beam 1 and analog beam 2; and selecting the undetermined analog beams from the first analog beam set to be the

time slots

2, 3, 5 and 6 in the second direction, and determining a second beam set corresponding to each time slot in the second direction.

In the embodiment provided by the invention, because the time slots in the first direction and the time slots in the second direction in the time slot group have a scheduling relationship or a feedback relationship, the analog beams of the uplink time slots and the downlink time slots which need to be scheduled and the feedback relationship need to be paired, when the analog beams of each time slot in the time slot group are selected, the undetermined analog beams are selected for the time slots in the first direction with less time slots in the time slot group, then the undetermined analog beams are selected for the time slots in the second direction with more time slots, so that the time for selecting the analog beams for the time slots in the time slot group can be saved, and the selected analog beams can be paired with the analog beams of the time slots in the other direction.

In one possible implementation, selecting a plurality of analog beams as the first analog beam set for a time slot in the first direction, where the time slot group includes a small number of time slots, may be implemented by:

if each first-direction analog beam in the first analog beam set is determined, taking the determined analog beam as the first-direction analog beam in the first analog beam set; if at least one of the first simulation beam sets is undetermined, selecting a beam to be scheduled which meets the first beam selection condition from a non-empty beam queue to be scheduled as a simulation beam in an undetermined first direction; and the first beam selection condition is different from all the determined first-direction analog beams in the non-empty beam queue to be scheduled, and the beam to be scheduled with the highest priority meets the isolation requirement with the determined first-direction analog beams.

According to whether the beam queues to be scheduled in two data transmission directions (a first direction and a second direction) are empty, selecting a beam to be scheduled meeting a first beam selection condition from the beam queues to be scheduled which are not empty as an undetermined first-direction analog beam, wherein the method can be realized by the following steps of:

the first way is: when the beam queues to be scheduled corresponding to the two data transmission directions are not empty, selecting one corresponding beam queue to be scheduled from the two data transmission directions according to a preset proportionality coefficient, and selecting a beam to be scheduled meeting a first beam selection condition as an undetermined first-direction analog beam; wherein the value range of the preset proportionality coefficient is 0 to 1.

Selecting a corresponding beam queue to be scheduled from two data transmission directions according to a preset proportionality coefficient, wherein the beam queue to be scheduled comprises:

when the preset proportionality coefficient is 0, selecting a beam queue to be scheduled with the data transmission direction being the downlink direction;

when the preset proportionality coefficient is 1, selecting a beam queue to be scheduled, wherein the data transmission direction of the beam queue is the uplink direction;

when the preset proportionality coefficient is a fraction between 0 and 1, selecting one beam queue to be scheduled in two data transmission directions according to the preset proportionality coefficient.

For example, assume that the time slot group is { time slot 9, time slot 2, time slot 3, time slot 5, time slot 6}, time slot 9 is an uplink time slot, time slot 2, time slot 3, time slot 5, time slot 6 is a downlink time slot, in this time slot group, the to-be-scheduled beam queues corresponding to the uplink time slots in the first direction (i.e., uplink direction) including the small number of time slots are { analog beam 3, analog beam 2, analog beam 0, analog beam 1}, and the to-be-scheduled beam queues corresponding to the downlink time slots in the second direction (i.e., downlink direction) including the large number of time slots are { analog beam 2, analog beam 3, analog beam 1, analog beam 0}, and 2 analog beams can be transmitted/received at the same time in the millimeter wave base station.

And the beam queues to be scheduled corresponding to the downlink time slots and the beam queues to be scheduled corresponding to the uplink time slots are not empty, so that the beam to be scheduled which meets the first beam selection condition is selected as an undetermined first-direction analog beam from the beam queues to be scheduled corresponding to one of the uplink direction and the downlink direction according to a preset proportionality coefficient.

Depending on the number of undetermined first direction analog beams in the first set of analog beams (the case where the number is 0 is not discussed here), the following cases can be distinguished:

Case 1: the number of undetermined first direction analog beams is 2;

case 2: the number of undetermined first direction analog beams is 1.

In the two cases, the specific selection process is as follows:

for case 1:

if the preset proportionality coefficient is 0, 2 undetermined first-direction analog beams are all selected from a to-be-scheduled beam queue corresponding to the downlink time slot, and a to-be-scheduled beam (assumed to be analog beam 2) meeting a first beam selection condition is found out from the to-be-scheduled beam queue corresponding to the downlink time slot to serve as a first undetermined first-direction analog beam in a first analog beam set; then, finding out the beam to be scheduled (assumed to be analog beam 1) meeting the first beam selection condition from the beam queue to be scheduled corresponding to the downlink time slot, and using the beam to be scheduled as a second undetermined first-direction analog beam in the first analog beam set, wherein all first-direction analog beams in the first analog beam set are determined, and selecting the undetermined second-direction analog beam in the second analog beam set, wherein a specific selection process is described later.

If the preset proportionality coefficient is 1, 2 undetermined first-direction analog beams are all selected from a to-be-scheduled beam queue corresponding to an uplink time slot, and a to-be-scheduled beam (assumed to be analog beam 3) meeting a first beam selection condition is found out from the to-be-scheduled beam queue corresponding to the uplink time slot to serve as a first undetermined first-direction analog beam in a first analog beam set; then, finding out the beam to be scheduled (assumed to be analog beam 0) meeting the first beam selection condition from the beam queue to be scheduled corresponding to the uplink time slot, and using the beam to be scheduled as the second undetermined first-direction analog beam in the first analog beam set, wherein all the first-direction analog beams in the first analog beam set are determined, and selecting the undetermined second-direction analog beam in the second analog beam set, wherein a specific selection process is described later.

If the preset proportionality coefficient is a decimal between 0 and 1 (0.8 is assumed), randomly generating a random number between 0 and 1 in each selection, selecting a beam to be scheduled meeting the first beam selection condition from a beam to be scheduled queue in the downlink direction if the random number is greater than or equal to the preset proportionality coefficient (0.8), and selecting a beam to be scheduled meeting the first beam selection condition from a beam to be scheduled queue in the uplink direction if the random number is less than the preset proportionality coefficient. Assuming that the generated random number is 0.5 when the analog beam is selected for the first undetermined analog beam in the first direction, selecting a beam to be scheduled (assumed to be analog beam 3) meeting the first beam selection condition from the beam to be scheduled queue in the downlink direction; when the analog beam is selected for the second undetermined first-direction analog beam, the generated random number is 0.9, the to-be-scheduled beam (assumed to be analog beam 1) meeting the first beam selection condition is selected from the to-be-scheduled beam queues in the uplink direction, at this time, all the first-direction analog beams in the first analog beam set are determined, and the undetermined second-direction analog beam in the second analog beam set can be selected, and a specific selection process is described later.

For case 2 (assuming that the determined first direction analog beam is analog beam 2):

if the preset scaling factor is 0, 1 undetermined first-direction analog beam is selected from the to-be-scheduled beam queues corresponding to the downlink time slots, if the to-be-scheduled beam meeting the first beam selection condition is analog beam 0, the undetermined first-direction analog beam is selected to be analog beam 0, at this time, all first-direction analog beams in the first analog beam set are determined, and the undetermined second-direction analog beam in the second analog beam set can be selected, and a specific selection process is described later.

If the preset scaling factor is 1, 1 undetermined first-direction analog beam is selected from the to-be-scheduled beam queues corresponding to the uplink time slots, if the to-be-scheduled beam meeting the first beam selection condition is the analog beam 3, the undetermined first-direction analog beam is the analog beam 3, at this time, all first-direction analog beams in the first analog beam set are determined, and the undetermined second-direction analog beam in the second analog beam set can be selected, and a specific selection process is described later.

If the preset proportionality coefficient is a decimal between 0 and 1 (0.5 is assumed), randomly generating a random number between 0 and 1 in each selection, selecting a beam to be scheduled meeting the first beam selection condition from the beam to be scheduled queues in the uplink direction if the random number is greater than or equal to the preset proportionality coefficient (0.5), and selecting a beam to be scheduled meeting the first beam selection condition from the beam to be scheduled queues in the downlink direction if the random number is less than the preset proportionality coefficient. Assuming that the generated random number is 0.2 when the analog beam is selected for the first undetermined first direction analog beam, the to-be-scheduled beam (assumed to be analog beam 3) meeting the first beam selection condition is selected from the to-be-scheduled beam queue in the downlink direction, at this time, all the first direction analog beams in the first analog beam set are determined, and the undetermined second direction analog beam in the second analog beam set can be selected, and a specific selection process is described later.

It should be understood that, under the circumstance that the preset proportionality coefficient is a fraction of 0-1, if no to-be-scheduled beam meeting the first beam selection condition exists in the to-be-scheduled beam queue corresponding to the current time, the to-be-scheduled beam is selected from the other to-be-scheduled beam queue.

For the case that the number of undetermined analog beams in the first direction is 0, that is, all analog beams in the first direction in the first analog beam set are determined, the determined analog beams are directly used as analog beams in the first direction, and no separate selection is needed.

The second way is: and when one of the beam queues to be scheduled corresponding to the two data transmission directions is empty. That is, the beam queue to be scheduled in the uplink direction is empty, or the beam queue to be scheduled in the downlink direction is empty, and when the beam to be scheduled is selected from the beam queues to be scheduled which are not empty, the method is similar to the method for selecting the corresponding direction in the preset proportionality coefficient of 1 or 0, so that the description is omitted.

After all the first direction analog beams in the first analog beam set have been determined, a plurality of analog beams can be selected as corresponding second analog beam sets for the time slots in the second direction with a large number of time slots in the time slot set, and since the time slots in the second direction include a plurality of time slots, the corresponding second direction analog beams need to be selected for each time slot in the second direction, which can be achieved specifically by the following ways:

if at least one of the second analog beam sets is not determined, selecting the first direction analog wave number which is not selected and meets the second beam selection condition from the first analog beam set as an undetermined second direction analog beam; the second beam selection condition is a first direction analog beam which is different from all the determined second direction analog beams in the first analog beam set, meets the isolation requirement with the determined second direction analog beams, and has the highest priority.

In one possible implementation, selecting the first analog wavenumber, which is not selected and meets the second beam selection condition, from the first analog beam set as the undetermined second direction analog beam may be achieved by:

if none of the second analog beams in the second analog beam set is determined, the first analog beam set is used as the second analog beam set;

if part of the second direction analog beams in the second analog beam set are not determined, selecting the first direction analog beams which are not selected and meet the second beam selection condition from the first analog beam set as corresponding undetermined second direction analog beams until all the undetermined second direction analog beams are selected, or selecting the first direction analog beams which are not selected and meet the second beam selection condition from the first analog beam set.

For example, the second direction is a downlink direction, in the time slot group { time slot 9, time slot 2, time slot 3, time slot 5, time slot 6}, the time slot in the uplink direction includes time slot 9, the time slot in the downlink direction includes time slot 2, time slot 3, time slot 5, and time slot 6, taking time slot 2 as an example, if all second direction analog beams in the second analog beam set of time slot 2 are determined, it is not necessary to select a beam to be scheduled for the time slot corresponding to the second direction.

If there is an undetermined second-direction analog beam in the second analog beam set of the slot 2, a first-direction analog wave number which is not selected and meets the second beam selection condition is selected as an undetermined second-direction analog beam from the first analog beam set of the slot 9.

Taking the element numbers of the first analog beam set and the second analog beam set as 2, the first analog beam set of the time slot 9 is { analog beam 1, analog beam 3} as an example, if none of the 2 second direction analog beams in the second analog beam set of the time slot 2 is determined, the first analog beam set is directly used as the second analog beam set, namely the second analog beam set of the time slot 2 is { analog beam 1, analog beam 3}.

If one second-direction analog beam is not determined in the first analog beam set of the time slot 2, the other determined second-direction analog beam is analog beam 0, and the other second-direction analog beam is selected from the second analog beam set to be the first-direction analog beam which is not selected (i.e. is not analog beam 0) and meets the second-beam selection condition (assuming that the first-direction analog beam meets the condition is analog beam 3), the analog beam 3 is taken as the second-direction analog beam which is not determined, and finally the second analog beam set of the time slot 2 is { analog beam 3, analog beam 0}.

Similarly, the second analog beam set of the other downlink timeslots (timeslot 3, timeslot 5, timeslot 6) may be determined in the same manner as the second beam set of the above-mentioned determination timeslot 2, which is not described in detail herein.

Steps 103-104 may be performed after selecting the corresponding analog beam for each slot in the group of slots.

Step 103: determining a schedulable time slot from the time slot group and a schedulable beam set consisting of schedulable analog beams in the beam set corresponding to the schedulable time slot; the schedulable time slot is a time slot with a scheduling relation or a feedback relation and at least one same beam index, and the schedulable analog beam is an analog beam with the same beam index;

step 104: and scheduling all the user terminals corresponding to the schedulable beam set.

After the corresponding analog beam is cooperatively selected for each time slot in the time slot group, whether each time slot can be scheduled or not needs to be further determined, and the schedulable analog beam is selected for each time slot to form a schedulable beam set of the corresponding time slot, which can be realized by the following modes:

if the beam set corresponding to the uplink time slot in the time slot group and the beam set corresponding to the downlink time slot where the scheduling PDCCH is located have a first intersection, determining that the uplink time slot can be scheduled on the analog beam in the first intersection, and determining the first intersection as a schedulable beam set;

if the beam set corresponding to the downlink time slot in the time slot group has a second intersection with the beam set of the uplink time slot where the corresponding feedback information is located, determining that the downlink time slot can be scheduled on the analog beam in the second intersection, and determining the second intersection as the schedulable beam set.

For example, in the slot group { slot 9, slot 2, slot 3, slot 5, slot 6}, the slot in the uplink direction includes slot 9, and the slot in the downlink direction includes slot 2, slot 3, slot 5, slot 6.

For each uplink time slot (time slot 9), the beam set of the downlink time slot where the scheduling PDCCH of the time slot 9 is { analog beam 3, analog beam 6}, the intersection of the beam set of the downlink time slot where the scheduling PDCCH is located and the first analog beam set { analog beam 3, analog beam 0} of the time slot 9 (i.e., the first intersection is { analog beam 3 }), which indicates that the time slot 9 can be scheduled, and all corresponding user terminals on the analog beam 3 can be scheduled in the time slot 9; if the first intersection includes multiple analog beams, MU-MIMO transmission may be performed in the time slot 9 for user terminals belonging to different analog beams in the first intersection. If the first intersection of time slot 9 is empty, it indicates that the corresponding uplink time slot is not schedulable.

For each downlink time slot (only time slot 2, time slot 3, time slot 5 and time slot 6 in the time slot group), taking time slot 2 as an example, the beam set of the uplink time slot where the feedback information corresponding to time slot 2 is { analog beam 2, analog beam 0}, the second analog beam set of time slot 2 is { analog beam 1, analog beam 2}, taking the intersection of the beam set of the uplink time slot where the feedback information corresponding to time slot 2 is located and the second analog beam set of time slot 2 (namely, the second intersection is { analog beam 2 }), determining that time slot 2 can be scheduled, and scheduling all user terminals corresponding to time slot 2 on analog beam 2; if the second intersection of the time slot 2 includes multiple analog beams, MU-MIMO transmission can be performed in the time slot 2 for the user terminals belonging to different analog beams in the second intersection. If the second intersection of time slot 2 is empty, it indicates that time slot 2 is not schedulable. Similarly, it can be determined whether other slots (slot 3, slot 5, slot 6) are schedulable, and a similar scheduling manner as slot 2 is implemented.

In the embodiment provided by the invention, after determining the analog beam set corresponding to each time slot in the time slot group, determining whether the beam set corresponding to the uplink time slot in the time slot group has an intersection with the beam set of the downlink time slot where the scheduling corresponding PDCCH is located, so as to determine whether the corresponding uplink time slot can be scheduled, thereby eliminating the analog beam with unmatched wave speed in the analog beam set corresponding to the uplink time slot; and determining whether the beam set corresponding to the downlink time slot in the time slot group has an intersection with the beam set of the uplink time slot where the corresponding feedback information is located, thereby eliminating whether the analog beam set corresponding to the downlink time slot has an analog beam with unmatched beams, and further ensuring that the analog beams in the uplink direction and the downlink direction which are scheduled can be normally scheduled.

In addition, for the user terminal belonging to the same schedulable analog beam in the schedulable time slot, the MU-MIMO configuration transmission is used, so that the number of MU users in the cell can be effectively increased, and the data transmission rate and the frequency spectrum efficiency of the cell are further improved.

As shown in fig. 3, the millimeter wave base station provided by the embodiment of the present invention includes a memory 301, a transceiver 302, and a processor 303:

a memory 301 for storing a computer program; a transceiver 302 for transceiving data under the control of the processor 303; a processor 303 for reading the computer program in the memory 301 and performing the following operations:

In one possible implementation, the processor 303 is further configured to:

A transceiver 302 for receiving and transmitting data under the control of a processor 303.

Wherein in fig. 3, a bus architecture may comprise any number of interconnected buses and bridges, and in particular one or more processors represented by processor 303 and various circuits of memory represented by memory 301, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. Transceiver 302 may be a number of elements, including a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium, including wireless channels, wired channels, optical cables, etc. The processor 303 is responsible for managing the bus architecture and general processing, and the memory 301 may store data used by the processor 303 in performing operations.

The processor 303 may be a Central Processing Unit (CPU), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a Field programmable gate array (Field-Programmable Gate Array, FPGA), or a complex programmable logic device (Complex Programmable Logic Device, CPLD), or the processor may employ a multi-core architecture.

It should be noted that, the above device provided in the embodiment of the present invention can implement all the method steps implemented in the method embodiment and achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those in the method embodiment in this embodiment are omitted.

Based on the same inventive concept, in an embodiment of the present invention, a millimeter wave base station is provided, and a specific implementation of a user scheduling method of the millimeter wave base station may refer to a description of an embodiment part of the method, and details are not repeated, and please refer to fig. 4, where the millimeter wave base station includes:

a time slot group unit 401, configured to group time slots having a scheduling relationship or a feedback relationship in a scheduling timing sequence into the same time slot group;

a cooperative selection unit 402, configured to perform cooperative selection on analog beams of time slots in the time slot group, so as to obtain a beam set of each time slot; the beam set comprises a plurality of analog beams which are transmitted simultaneously, and the number of the analog beams in the beam set is the number of the beams which are transmitted or received simultaneously by the millimeter wave base station in the same coverage area;

A determining unit 403, configured to determine a schedulable time slot from the time slot group, and a schedulable beam set formed by schedulable analog beams in a beam set corresponding to the schedulable time slot; wherein the schedulable time slot is a time slot having the scheduling relation or the feedback relation and having at least one identical beam index, and the schedulable analog beam is an analog beam having the identical beam index;

a scheduling unit 404, configured to schedule all user terminals corresponding to the schedulable beam set.

In a possible implementation manner, the co-selection unit 402 is further configured to:

In a possible embodiment, the determining unit 403 is further configured to:

It should be noted that, in the embodiment of the present application, the division of the units is schematic, which is merely a logic function division, and other division manners may be implemented in actual practice. In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a processor-readable storage medium. Based on such understanding, the technical solution of the present application may be embodied in essence or a part contributing to the prior art or all or part of the technical solution, in the form of a software product stored in a storage medium, including several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

Based on the same inventive concept, the embodiments of the present invention also provide a processor-readable storage medium storing a computer program for causing the processor to execute the method of user scheduling in the millimeter wave communication system as described above.

The processor-readable storage medium may be any available medium or data storage device that can be accessed by a processor, including, but not limited to, magnetic storage (e.g., floppy disks, hard disks, magnetic tape, magneto-optical disks (MOs), etc.), optical storage (e.g., CD, DVD, BD, HVD, etc.), semiconductor storage (e.g., ROM, EPROM, EEPROM, nonvolatile storage (NAND FLASH), solid State Disk (SSD)), and the like.

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

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer-executable instructions. These computer-executable 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 flow or flows and/or block diagram block or blocks.

These processor-executable instructions may also be stored in a processor-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 processor-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These processor-executable 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 flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present application without departing from the spirit or scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims and the equivalents thereof, the present application is intended to cover such modifications and variations.

Claims

1. The method for scheduling the users in the millimeter wave system is applied to a millimeter wave base station and is characterized by comprising the following steps:

2. The method of claim 1, wherein co-selecting analog beams for the time slots in the set of time slots to obtain a set of beams for each time slot comprises:

3. The method of claim 2, wherein the co-selecting analog beams for the time slots in the set of time slots, prior to obtaining the beam set for each time slot, further comprises:

4. The method of claim 3, wherein determining the beam queues to be scheduled corresponding to the two data transmission directions in the mmwave base station respectively comprises:

5. The method of claim 4, wherein selecting the plurality of analog beams as the first set of analog beams for the time slots in the first direction having the small number of time slots in the group of time slots comprises:

6. The method of claim 5, wherein selecting, from the non-empty queue of beams to be scheduled, a beam to be scheduled that meets a first beam selection condition as an undetermined first-direction analog beam, comprises:

7. The method of claim 6 wherein selecting a corresponding beam queue to be scheduled from the two data transmission directions according to a predetermined scaling factor comprises:

8. The method according to any of claims 5-7, wherein selecting a plurality of analog beams as a corresponding second set of analog beams for time slots in a second direction in which the set of time slots comprises a large number of time slots, comprises:

9. The method of claim 8, wherein selecting, from the first set of analog beams, a first analog wave number that is unselected and meets a second beam selection condition as an undetermined second direction analog beam, comprises:

10. The method of claim 1, wherein determining a schedulable time slot from the set of time slots and a schedulable beam set of schedulable analog beams in a beam set corresponding to the schedulable time slot comprises:

11. A millimeter wave base station comprising a memory, a transceiver, and a processor:

12. The millimeter wave base station of claim 11, wherein the processor is further configured to:

13. The millimeter wave base station of claim 12, wherein the processor is further configured to:

14. The millimeter wave base station of claim 13, wherein the processor is further configured to:

15. The millimeter wave base station of claim 14, wherein the processor is further configured to:

16. The millimeter wave base station of claim 15, wherein the processor is further configured to:

17. The millimeter wave base station of claim 16, wherein the processor is further configured to:

18. The millimeter wave base station of any of claims 15-17, wherein the processor is further configured to:

19. The millimeter wave base station of claim 18, wherein the processor is further configured to:

20. The millimeter wave base station of claim 11, wherein the processor is further configured to:

21. A millimeter wave base station, comprising:

22. A processor-readable storage medium, characterized in that the processor-readable storage medium stores a computer program for causing the processor to perform the method of any one of claims 1 to 10.