JP2023536726A - Traffic shaping in DU/CU to artificially reduce radio receiver traffic load - Google Patents

Abstract

configuring an element management control unit including a set of distributed (DU) and aggregated units (DU/CU) for monitoring power and channel traffic at multiple cell sites in a network; transmitting and receiving data traffic data by the scheduler unit; receiving control data by the scheduler unit for a congested network channel in uplink (UL) and downlink (DL) transmissions from a UE; applying a channel management solution at the cell site by a scheduler unit to choke off congested channels via a scheduling scheme based on control data about the traffic volume; and a scheduler unit for managing network traffic at the cell site. applying an adaptive traffic management solution for shaping network data traffic on a selected channel based on control data of the traffic type on the channel by a control unit coupled to the unit; Systems and methods are provided for adaptive channel and traffic shaping management in a network that includes repeatedly applying channel and traffic management solutions at cell sites by a control unit based on power and channel traffic condition data.

Description

[Cross reference to related applications]
This application is related to U.S. Patent Application No. 16/945,131 filed July 31, 2020 and to U.S. Patent Application No. 16/945,196 filed July 31, 2020. The contents of both applications are incorporated by reference in their entirety.

[Technical field]
The following discussion relates generally to power management in wireless communication systems. More specifically, the following discussion is based on utility power interruptions or failures, such as in 5G data networks, by smart bandwidth adaptation and traffic load increasing the operating time of a switched backup uninterruptible power supply (UPS). Systems, devices, and automated processes for reducing power drawn by radio frequency (RF) radios.

5G data standards and telephony networks have been developed to provide significantly improved bandwidth and quality of service to mobile phones, computers, Internet of Things (IoT) devices, and the like. High-bandwidth 5G networks, however, face additional challenges that are now recognized. In part, due to the high bandwidth, 5G base stations are expected to consume about three times as much power as conventional 4G base stations during use. Moreover, more 5G base stations are needed to cover the same area as traditional 4G base stations. Therefore, each 5G base station not only consumes three times the power of a 4G base station, but more 5G base stations are used to cover the same area, resulting in a significant increase in power consumption. Will.

Furthermore, with the increase in power usage, in the case of AC power failure, 5G base stations need to have battery backup to ensure service provision during AC power failure. These battery backup units are expensive and the cost of battery backup is determined in part by the amount of power required and subsequently consumed by the 5G base station RF radio transmitters and receivers, in this case: Both the number of uses and the power required for each 5G base station outperform traditional 4G base stations. In those cases where a large amount of power is required and consumed by some 5G base stations, multiple series or parallel connected backup power packs are required, which ultimately leads to This results in a multi-fold cost increase in configured 5G base stations.

The use of beam management is defined as the process of acquiring and maintaining a set of beams emitted by a gNB and/or UE, and using beam management to reduce power demands for downlink and/or downlink transmission and reception. Management should be implemented.

It would be desirable to provide a solution to implement chokes in heavily loaded channels as opposed to bandwidth reduction. It is desirable to reduce power consumption at cell sites that can be reduced by shutting down heavily loaded channels (ie, limiting users), and power consumption savings can be shown in a functional relationship. That is, instead of applying traffic management to ensure fairness among users, it is important to reduce power consumption among users by gradual reduction to individual channels, which can reduce power consumption and extend backup battery life. Traffic management solutions may be implemented that may take additional considerations into account.

Therefore, it is desirable to create systems, devices, and automated processes that can monitor utility power interruptions and failures and enable different configurations of base station components to operate in a desired cell network. It is also desirable to improve connectivity and operating time for base station equipment operating in backup power mode using backup batteries at cell sites in 5G or similar networks.

Furthermore, other desirable features and features of the present invention will become apparent from the subsequent detailed description and the appended claims, taken in conjunction with the accompanying drawings and the foregoing technical field and background. .

Exemplary embodiments are described below with reference to the following drawings, where like numerals indicate like elements.

1 illustrates an exemplary diagram of components within an adaptive channel selection and traffic shaping power management system in a wireless data networking environment in accordance with various embodiments; FIG. 1 illustrates an exemplary diagram of a feedback communication loop for base station power management in response to utility power interruptions or failures for a base station power management system in a wireless data networking environment in accordance with various embodiments. 4 illustrates an exemplary flow chart for base station power management in response to utility power interruptions or failures in a base station power management system in accordance with various embodiments. 4 illustrates a flowchart of an exemplary minislot and frequency process in response to a utility power interruption or failure of a base station power management system in accordance with various embodiments. FIG. 10 illustrates an exemplary channel selection and traffic shaping flowchart for artificially reducing the total traffic load on a wireless receiver such that all TTLs do not carry data in accordance with various embodiments; FIG. FIG. 10 illustrates an exemplary flowchart of exemplary channel selection and traffic shaping to artificially reduce the total traffic load on a wireless receiver such that all TTLs carry no data in accordance with various embodiments; FIG. 1 illustrates a diagram of an example user equipment (UE) and network architecture, e.g., an automated process for reducing power consumption, in accordance with various embodiments; FIG.

A system for reducing congested channels and adapting network traffic at a cell site so as to reduce power consumption of backup power supplies to the cell site in response to power loss with/without channel congestion at the cell site , devices and automated processes are provided.

In an exemplary embodiment, a system is provided for adaptive channel and traffic shaping management in networks. The system includes an element management control unit, a scheduler unit, a control unit, and the element management control unit is a distribution and aggregation unit (DU/CU) for monitoring power and channel traffic conditions at multiple cell sites in the network. A scheduler unit for transmitting and receiving user equipment (UE) data traffic data, comprising a set, receives control data for congested network channels in uplink (UL) and downlink (DL) transmissions from the UE. and applying a channel management solution at the cell site to choke off the congested channel via a scheduling scheme based on control data about the amount of traffic data on the channel; is coupled to a scheduler unit for managing network traffic at the cell site and applying an adaptive traffic management solution to shape network data traffic on selected channels based on control data for traffic types on the channels; , is configured to iteratively apply channel and traffic management solutions at the cell site based on power and channel traffic condition data received by the DU/CU.

In various exemplary embodiments, a system is a control unit for applying an adaptive beam management solution to reduce power in a cell site while reducing power consumed in a cell site of a network; a control unit configured to dynamically configure settings for power supplied to beam configurations used for UL and DL transmissions at the cell site to maintain current levels of beam signals across the cell site; Including further. The system reduces the amount of network traffic by applying a set of time-domain scheduling periods for scheduling network traffic on the channel, thereby reducing power consumption in UL and DL transmissions. further comprising a scheduler unit for implementing The system uses a certain number of OFDM symbols to manage network traffic on congested channels by allowing a dynamic set of minislots to transmit and receive data requests on scheduled operations. and a scheduler unit configured to use the The system further includes a control unit configured to maintain the same active bandwidth prior to power failure for selected channels that are not subject to choking at the cell site. The reduced traffic includes minislot lengths for minislot configuration periods for UL and DL transmissions containing 2, 4, and 8 OFDM symbols. The system enables UL and DL transmissions over variable durations of traffic data subframes in each minislot based on a set of frequencies where the traffic data subframes are part of a sequence of packet data transmitted in the slot. thereby including a scheduler unit configured to support low latency and reduced power consumption per reduced traffic transmission. The system includes a control unit configured to enable power management by performing one or more of a set of actions including choking congested channels at cell sites, adapting beam management, and filtering network traffic. include. The system, in response to ongoing traffic transmission, to other UEs to allow immediate transmission of subframe data with low latency over less congested channels to reduce the amount of power consumption. It includes a scheduler unit configured to pre-empt transmission of the subframe database already in progress. The system includes a control unit responsive to the detected power to restore the choked channels and traffic shaped by control and filtering actions in a priority scheme.

In another exemplary embodiment, a method for adaptive channel and traffic shaping management is provided. The method comprises configuring an element management control unit including a set of distribution (DU) and aggregation units (DU/CU) for monitoring power and channel traffic at multiple cell sites in the network; ) by the scheduler unit; receiving by the scheduler unit control data for congested network channels in uplink (UL) and downlink (DL) transmissions from the UE; Applying a channel management solution by a scheduler unit at the cell site to choke off congested channels via a scheduling scheme based on control data on traffic data volume above and managing network traffic at the cell site. applying an adaptive traffic management solution to shape network data traffic on selected channels based on control data of the traffic type on the channel by a control unit coupled to the scheduler unit for; Iteratively applying a channel and traffic management solution at the cell site by the control unit based on the received power and channel traffic condition data.

In various exemplary embodiments, a method reduces power at a cell site to maintain a current level of beam signal across the cell site while reducing power consumed at the cell site of the network; An adaptive beam management solution is applied by the control unit to dynamically configure settings for the power supplied to the beam structures used for UL and DL transmissions at the cell site. The method implements a time-domain based schedule by a scheduler unit to reduce power consumption in UL and DL transmissions, and by applying a set of time-domain scheduling periods for scheduling network traffic within a channel. Further including reducing the amount of traffic. The method uses a scheduler unit to allow a certain number of orthogonal frequency division multiplexing (OFDM) mini-slots composed of sub-frame data when implementing transmission and reception of data requests in scheduling operations. Including signal. The method further includes maintaining, by the control unit, the same active bandwidth prior to power failure for selected channels that are not subject to choking at the cell site. The minislot lengths for the minislot configuration period for UL and DL transmissions include 2, 4, and 8 OFDM symbols. The method enables UL and DL transmission over variable durations of traffic data subframes in each minislot based on a set of frequencies where the traffic data subframes are part of a sequence of packet data communicated in the slot. This includes supporting low latency and reduced power consumption per reduced traffic communication by the scheduler unit. In response to a DL transmission, the method prevents, by a scheduler unit, from allowing at least one minislot to receive a DL transmission outside an active bandwidth portion; , preventing by the scheduler unit from allowing the at least one minislot to receive UL transmissions outside the active bandwidth portion. The method further includes enabling power management by the control unit by performing one or more of a set of actions including choking congested channels at cell sites, adapting beam management, and filtering network traffic. .

In yet another exemplary embodiment, a computer program product, when executed by a processor, implements a method for operating modes of a base station when power loss with congested traffic in a channel is detected. The method is a distribution (DU) and aggregation unit (DU/CU) for monitoring power and channel traffic at multiple cell sites in a network. ), transmitting and receiving user equipment (UE) data traffic data by a scheduler unit, and uplink (UL) and downlink (DL) transmissions from the UE. and channel management at the cell site to choke off the congested channel via a scheduling scheme based on the control data for the amount of traffic data on the channel. applying the solution by a scheduler unit, and by a control unit coupled to the scheduler unit for managing network traffic at the cell site, network data traffic on selected channels based on control data of traffic types on the channels; applying an adaptive traffic management solution for shaping; and iteratively applying by a control unit the channel and traffic management solution at the cell site based on power and channel traffic condition data received by the DU/CU. .

DETAILED DESCRIPTION The following detailed description is intended to provide some examples that will illustrate the broader concepts described herein, but is intended to limit the invention or the application and uses of the invention. not. Furthermore, there is no intention to be bound by any theory presented in the preceding background or the following detailed description.

When connecting a 5G base station to a power grid, power must always be continuously available and provided to the 5G base station uninterrupted for numerous environmental and operational reasons such as accidents, lightning strikes, rolling blackouts, etc. not necessarily. Therefore, in order to enable robust and reliable 5G services from 5G base stations, carriers must build backup power systems. In 5G networks, it is standard to provide backup power to macro cells, and in many cases sufficient service is provided at the macro level. However, power consuming small cell structures require additional power backup not typically available in conventional 4G cell tower power deployments. Therefore, additional backup power is essential for small cell rollouts to function properly.

In 5G networks, RF radio units need to have battery backup to ensure service provision during AC power outages. Battery backup units are expensive, and the cost for each battery backup is calculated by the power consumed by the radio unit, the duration of the backup, and the number of active carriers in the base station or network.

Currently, there are many obstacles or shortcomings that prevent optimization of battery backup capacity in the event of power interruptions or power outages. It would be desirable to be able to optimize the required battery backup capacity as follows.

(1) Shutdown of active carriers: This impacts the user experience, such as lack of emergency calls such as E911, causing users to cancel service and switch to operators with battery backup service. Not a desirable option. (2) Bandwidth Reduction of Active Carriers: Changing the active carrier BW requires a new cell configuration for the lower channel BW on the same radio, so this is easily done in current operation. Not possible. (3) Changing the BW in operation will also cause a service interruption, as the site will be rebooted in order for the new channel BW to take effect.

Advanced capabilities of 5G small cells mean additional power requirements. Increased data traffic requires more computing power. Although massive MIMO can help improve spectral efficiency, power efficiency is generally poor, with a typical three-sector small cell may require 200-1,000 Watts of power.

Power must be received by a large number of small cells in a cost-effective and repeatable manner that supports rapid and efficient rollout. The first step involves recognizing that the traditional model for powering macro cell sites does not apply to small cells.

An A-frame has a duration of 10 ms, consisting of 10 sub-frames each having a duration of 1 ms, similar to LTE technology. Each subframe may have 2 μslots. Each slot consists of 14 orthogonal frequency division multiplexing (OFDM) symbols. Radio frames of 10ms are transmitted in succession one after another according to the TDD topology. The subframes are of fixed duration (ie, 1 ms), but the slot length varies based on the subcarrier spacing and the number of slots per subframe. Each slot occupies 14 OFDM symbols or 12 OFDM symbols, respectively, based on the normal cyclic prefix (CP) and the extended CP.

The scheduler can be configured to prune available slots (i.e. uplink or downlink), e.g. slots for scheduling to manage power consumption without causing service disruption of any cell site We implement minislots that do not require all 14 symbols in the configuration. It is also desirable to change frequency in the time domain for scheduling as well as enable/disable slots. The scheduler may implement time-domain based scheduling, mini-slots for all operating carriers of cell-sites in the network, especially in the event of AC power failure or interruption to increase power management efficiency of each cell-site. Enabled or disabled to reduce power requirements.

Channel control by the control unit may be defined as the NR Intermediate Access Control (MAC) layer that provides services to the Radio Link Control (RLC) layer in the form of logical channels. A logical channel is defined by the type of information being carried and is a control channel when used for the transmission of control and configuration information and a traffic channel when used for user data.

Channel control is configured on radio resources that consist of two domains: frequency and time. In the frequency domain, the channel bandwidth ranges from 1-20 MHz. The total available bandwidth including 1.4, 3, 5, 10, 15, and 20 MHz is divided into subchannels of 12 subcarriers of 15 KHz for a total of 180 KHz. The minimum allocation unit of radio resources is called a resource block (RB). One RB consists of 180 KHz in the frequency domain and 1 ms in the time domain. In the time domain, the radio resource is divided into communication time intervals (TTIs), also called subframes, having a duration of 1 millisecond. One frame consists of 10 TTIs. Each TTI consists of two 0.5ms slots and each slot contains 7 symbols. LTE-A network in 5G environment (ie 5G LTE-A).

A minislot is the smallest scheduling unit used in 5G NR. Since it occupies 2, 4, or 7 OFDM symbols (regardless of numerology), users can be allocated less minislots than slots (14 symbols), which is suitable for low-latency communication. Because it allows for what is called non-slot-based scheduling, which will have higher priority than normal enhanced mobile broadband (eMBB) users, it preempts other eMBB transmissions because it has low latency requirements. can.

Slots can be classified as downlink (all symbols are dedicated to the downlink) or uplink (all symbols are dedicated to the uplink) or mixed uplink and downlink transmission. For frequency division duplex (FDD), all symbols in a slot for the downlink carrier are used for downlink transmission, and all symbols in the slot for the uplink carrier are used for uplink transmission. New Radio (NR) Time Division Duplex (TDD) uses a flexible slot structure. OFDM symbols within a slot may be classified as "downlink," "flexible," or "uplink." Flexible symbols may be configured for uplink or downlink transmission. NR TDD uses a flexible slot structure. OFDM symbols within a slot may be classified as "downlink," "flexible," or "uplink." Flexible symbols may be configured for uplink or downlink transmission. In FDD mode, both the uplink and downlink can transmit simultaneously on different spectral frequencies. In TDD mode, both uplink and downlink use the same spectral frequencies but different times.

MIMO antennas communicate with multiple users using focused beams of radio waves ("beamforming"). This improves channel efficiency along with data rate and reduces the possibility of interference. Also, certain MIMO antenna configurations can be implemented to focus radio energy directly to the connected device, providing the power and energy needed to further reduce energy consumption for both base stations and user equipment (UE). can determine the exact amount of

Traffic shaping may reduce power consumption at a cell site (ie, base station). For example, traffic shaping rules can be implemented to enable real-time voice and video, and to block or throttle applications such as peer-to-peer applications and social networks. When the channel is not congested, power consumption is reduced due to the low traffic rate. The same is not true in the case of high traffic load, since there are no empty subframes left during high traffic load, so power consumption is not reduced. A user may be moved to a different channel when making a channel selection. For example, a user may be moved from a 20Mhz channel to a 40Mhz channel or another channel.

In 5G NR, beam-based cell-sector coverage is used, which increases the link budget and overcomes the drawbacks of mmWave channels. In other words, all data transmissions and key signaling transmissions are beamformed (directional).

The RF radio and antenna use fixed input power under full load RF conditions. If utility power is interrupted, lost, or significantly reduced, the RF radio cannot receive notifications to adjust its power consumption accordingly. In other words, the RF is not notified and the RF radio is not configured to be notified of the loss of mains power and cannot change or withdraw its preset input power requirements. The inability to change the RF radio's input power requirements results in degraded performance of its operation by prematurely depleting its battery backup system.

5G New Radio (NR) is the global standard for integrated high-performance 5G radio interfaces, which can provide a faster broadband experience, with the initial bandwidth portion used by all UEs during initial access. (BWP) and dedicated BWPs for UEs or UE groups that may apply for data allocation. BWP adaptation is controlled by the gNB node (radio access network (RAN) + distribution unit (DU)/aggregation unit (CU) for 5G). There may be multiple smaller BWPs (ie, RAN slicing architectures with multiple sets of functional partitioning and functional placement in one cell) that will be predefined by the operator to be used during AC power outages. In an exemplary embodiment, another option is to use progressive reduction of BWP during operation. (eg, start with only a 25% reduction in BW, then move to progressively lower numbers if power is not restored). With this process, a poor user experience may be avoided in the case of short AC power outages. Network slicing can also be linked to the BWP, minimizing power consumption gNBs by controlling the interaction of the slices with the BWP during AC power outages or light network load operations. For example, an operator may choose to merge all available slices into a smaller BWP. The operator may choose to define the BWP-to-slice mapping during an AC power failure when multiple BWPs are defined that are available during an AC power failure.

Achieve cost savings using intelligent solutions to reduce 5G base station power consumption when operating in backup power mode while meeting sufficient regulatory operating requirements to prevent radio transmitter shutdown is desirable.

To save component costs and increase current usage and efficiency, it is desirable to limit the number of backup power supplies required for use when operating a 5G base station in backup power mode.

At least two concatenations that are repeated together periodically during slot configuration for New Radio (NR) communications by users at cell-sites within the network for monitoring power and channel traffic at multiple cell-sites within the network. to enable or disable a set of minislots in the downlink (DL) and uplink (UL) patterns, including patterns, and upon request by the user, the reserved slot number in an AC failure condition; and a decrease in channel traffic based on data received by the DU/CU for reserving a number of minislots for use in each slot configuration period. It would be desirable to provide a system and method for operating slot management.

To dynamically inform the UE about the UL transmission and DL reception pattern for each minislot configuration period in which the initial set of minislots are enabled in response to data received about loss of power, and the cell site of the network. It is desirable to provide a system and method for initializing a set of minislots for use when scheduling UEs with minislot assignments to reduce channel traffic in minislots from DU/CUs that monitor . Also, shortening the slot time via changing the frequency of the minislot configuration periods by applying a set of time domain scheduling periods for a selected number of minislots in effect in each time domain scheduling period. In order to reduce the power consumption of UL and DL transmissions by , it is desirable to implement a time-domain based schedule.

RF wireless transmitters by implementing adaptive bandwidth control and slicing provision at cell sites (i.e. nodes) or based on an assessment of whether degraded RF wireless service can be implemented under current conditions Enabling smart management of power consumption by allowing automated systems to reconfigure components based on a study of the current traffic load of the antenna to change the operating mode of the base station It would be desirable to provide a system and method for managing the behavior of components. If possible, the RF EMS or orchestration system will implement workflows to lower the RF radio's input power requirements. This may reduce current power consumption and result in increased time when the RF radio/antenna can operate in backup UPS power mode and provide service.

It would be desirable to implement a process whereby an operator could choose to terminate the provision of some slices and continue only with higher priority slices. Wireless AC power failure detection by DU/CU, DU/CU, or NFMF may also detect AC power failure via FCAP and activate the solution. During an AC power failure, the RAN will notify the control unit (DU: Distributed Unit or CU: Aggregated Unit). The DU/CU will start moving all user traffic to the designated subordinate BWP (eg, the initial BWP) while shutting down all other BWPs in the currently active carrier. Based on the configuration, the DU/CU will move all users and/or slices to a smaller BWP during AC power outages or light network loads to minimize power consumption gNB. , will notify the user of changes in the assigned BWP. The user will stop monitoring the current BWP and immediately start tracking only the subordinate BWPs.

In multi-carrier operation, the DU/CU may also move all traffic to a single carrier based on BWP or slice prioritization. After full power is restored or RAN load increases, the gNB may reactivate all dedicated BWPs or slices and seamlessly move users to their individual BWPs or slices. Multi-user MIMO (MU-MIMO) operation reduces bandwidth allocation to UEs. If the RAN scheduler operates in MU-MIMO operation and determines that all serving users can be assigned to the same lower PRB, the DU/CU can turn off transmission on other subcarriers, thereby saving power. bring savings. Lower PRB allocations for MU-MIMO may be prioritized based on predefined priorities of BWP and/or slicing.

Changing the required level in the input power setting of the RF radio in response to changes in the input mains power level detected by the RF radio or interruption feedback messages to reduce the power consumption of the RF radio during operation. is desirable. The operating power setting of the RF radio is adapted to immediate operating requirements, including determination of RF services available on the antenna/radio, to provide extended operating time for antenna reception and communication with the RF radio transmitter. reduced based on

An automated system based on examination of the current traffic load on the antenna to change the mode of operation of the RF wireless transmitter based on an assessment of whether degraded RF wireless service can be implemented under the current conditions. It is desirable to be able to reconfigure the components using If possible, the RF EMS or orchestration system will implement workflows to lower the RF radio's input power requirements. This may reduce current power consumption and result in increased time when the RF radio/antenna can operate in backup UPS power mode and provide service.

Compensate for loss of utility power to reduce current consumption of RF radios when RF radios of active cells (i.e. gNB nodes) suffer utility power dips or interruptions at the input to the base station It would be desirable to provide a system and method in which an operational system is modified in such a way.

Wireless mobile technology uses various standards and protocols to transmit data between base transceiver stations (BTSs) and wireless mobile devices. The deployment of large numbers of small cells presents a need for energy efficient power management solutions in fifth generation (5G) cellular networks. Massive multiple-input multiple-output (MIMO) would reduce transmit power, but not only would it result in computational costs, but also in terms of the computation required, the input power requirements for transmission would be significantly higher than those of 5G small cell networks (especially (when operating in backup mode) can be an important factor in power energy efficiency. In the 3GPP Radio Access Network (RAN) of the LTE system, the BTS is an evolved Node B (also commonly referred to as an enhanced Node B, eNodeB, or eNB) and a Radio Network Controller (RNC) in the Universal Terrestrial Radio Access Network (UTRAN). ) to communicate with wireless mobile devices known as user equipment (UE). Downlink (DL) transmissions may be communications from a BTS (or eNodeB) to a wireless mobile device (or UE), and uplink (UL) transmissions may be communications from a wireless mobile device to the BTS.

Base station (BS) power consumption is divided into three categories: transmission power, computational power, and power for base station operation. Transmit power is the power used by the power amplifiers (PA) and RF chains that perform the modification of the wireless signal, ie, the signal conversion between baseband signals and wireless radio signals. Computational power represents the energy consumed in the baseband unit (BBU), which contains digital shingle processing, management and control functions of the BS and communication functions between the core network and the BS. All these operations are performed by software and implemented on a semiconductor chip. Additional power represents the power consumed to keep the BS running. More specifically, the additional power is due to power lost switching from the power grid to the mains, power lost switching between different direct current-to-direct current (DC-DC) power sources, and active cooling at the BS. Includes power consumed.

Loss of power and blackouts are common in today's networks as a result of natural disasters, rolling blackouts, and the like. Base stations include backup power sources (e.g., batteries), and these forms of backup power sources may not provide sufficient power during extended AC power outages, and the use of commercial wireless communication services is It may increase due to user needs and/or desires.

A physical node or network node represents an access node (eg, wireless distribution unit) or a non-access node (eg, servers and routers), while a physical link represents a fiber optic link between two physical nodes. Every physical node is characterized by a set of available resources: computation (CPU), memory (RAM) and storage that define the load characteristics of the cell site. Each physical link is characterized by a bandwidth capacity and a latency value, which is the time required for a flow to traverse the link. Finally, both physical nodes and links have associated power utilization requirements for each type of resource available.

The power supply to the BS is rectified and regulated to a nominal measured DC voltage 48 (ie direct voltage (VDC)) that is supplied to a backup battery or set of backup batteries for charging. The rectifier unit contains circuitry to fully charge and prepare the battery in the event of a utility power interruption or failure. When fully charged, the backup battery is kept at a voltage near 50 volts. Also, the vendor/operator may choose a -24V DC voltage or other DC voltage setting rather than the common 48V setting. Generally, the battery pack parameters per customer's requirement are 100W (in this case, the power is calculated per RU power consumption and is a variable amount) AC system, 48.1V which can last for about 150 minutes at full load 2 hours working time under /65Ah battery or other operator backup time setting order (e.g., operator may choose 2 hours battery backup, 4 hours, or 8 hours as desired or as needed for operation). can choose the time...).

Base stations typically use a 48V input power supply that is stepped down to 24V or 12V by a DC/DC converter, which can be reduced to match the DC voltage level of each module.

In 3GPP specifications, a UE's reception and transmission bandwidth may be adjusted to a subset of the total cell bandwidth called BWP. Bandwidth can be configured to shrink during periods of low activity for power reduction, and the location of bandwidth can also be changed to allow for different services. In an exemplary embodiment, bandwidth adaptation may be achieved by configuring the UE with BWPs that are informed which of the configured BWPs is the currently active BWP.

FIG. 1 shows a graphical representation of a 5G or other data network 100 including multiple cells 121 , 122 , 123 providing access to network 105 for any number of UE devices 110 . For simplicity, FIG. 1 shows only one user equipment (UE) device 110, but in practice the concepts described herein can be applied to any number of devices 110 and/or cells 121-121. 123, as well as any kind of network architecture for allocating bandwidth to different slices and performing other tasks as needed.

In the example of FIG. 1, a mobile phone or other user equipment (UE) device 110 suitably attempts to connect to network 105 via the appropriate access cell 121 , 122 , 123 . In the illustrated example, each cell 121 includes a base station controller 131, a base station transceiver 138, a node 140, an RF radio 135, a radio network controller 142 components for transmission, an antenna interface 132 and an antenna 133 coupling component, and Mains power interface 150 includes the power components of a battery circuit 154 and a UPS or battery 156 backup power source 152 .

Mains power interface 150 may receive power AC power from a utility or other source. Antenna 133 and antenna interface 132 control signaling to UE 110 . Radio network controller 142 may control RF transmission power via RF radio 135 to conserve power usage to reduce power consumption of USP 156 . By reducing the communication bit rate, RF power can be reduced in decibels (“dB”). Also step reduction may be implemented. Battery circuit 154 may be configured as a rectifier-type switch that may switch output power from UPS 156 at multiple levels. Base station controller 138 may include a power control mechanism for controlling the power drawn by base station 138 . Base station controller 138 also changes the power input power levels of multiple small cells 121, 122, and 123, and the number of UEs 110 connected to resources within slices of node 140 and nodes (gNBs): The front end may communicate wirelessly with a power management system 170 that may identify AC power outages or interruptions.

In the exemplary embodiment, UE 110 may be configured with up to 4 BWPs for the downlink and uplink, but 1 BWP for the downlink and 1 BWP for the uplink at any given time. Only BWP is active. The BWP may be configured to allow each of the UEs 110 to operate with a small bandwidth, and if the user requests more data (burst traffic), the gNB may be instructed to make full use of the bandwidth. can notify. When the gNB configures the BWP, it contains the parameters: BWP Numerology (u) BWP Bandwidth Size Frequency Location (NR-ARFCN), CORESET (control resource set). For the downlink, the UE is not expected to receive PDSCH, PDCCH, CSI-RS, or TRS outside the active bandwidth portion. Each DL BWP includes at least one CORESET with a UE-specific search space (USS), while at least one of the primary carrier's configured DL BWPs has one CORESET with a common search space (CSS). include. For the uplink, UE 110 should not transmit PUSCH or PUCCH outside the active bandwidth portion. UE 110 is expected to receive and transmit only within the frequency range configured for active BWP with associated numerology. However, there are exceptions, a UE may perform Radio Resource Management (RRM) measurements and transmit Sounding Reference Signals (SRS) outside its active BWP via measurement gaps.

In the exemplary embodiment, the radio network controller 131 is implemented with computer-executable instructions stored within the device's memory, hard drive, or other non-transitory storage for execution by a processor contained therein. implement logic. The radio network controller 131 may also be configured with a remote radio unit (RRU) 160 for downlink and uplink channel processing. RRU 160 may be configured to communicate with baseband unit (BBU) 139 of base station controller 131 via physical communication links and with wireless mobile devices over the air interface.

In various alternative embodiments, base station 138 may be separated into two parts, baseband unit (BBU) 139 and remote radio head (RRH) 141 , while concentrating baseband processing functions in master base station 175 . , to provide network operators to maintain or increase the number of network access points (RRHs) for a node (gNB). Using the master C-RAN base station 175, the power management system 170 can be directed to coordinate operation at the tangential power levels of multiple cells (121, 122, and 123).

FIG. 2 is an exemplary flow diagram of a smart bandwidth adaptive call flow for a smart bandwidth (BW) adapter controller in accordance with various embodiments. In FIG. 2, first in step 5, smart BW control is enabled or set to always monitor ON for AC power failure or light network load. At step 10, detection by the BW adapter controller is made as to whether an AC power failure or light network load state change has occurred. For example, a base station power management system utility power interruption or failure in a wireless data networking environment, or a base responding to blackout detection of New Radio AC power by a distributed unit (DU) or aggregation unit (CU) connected to a 5G network. Feedback communication loop for station power management.

The Distributed Unit (DU) or Aggregated Unit (CU) or Management Function (NFMF) may also detect AC power failures by using the Fault, Configuration, ACcounting, PerFormance, Security (FCAPS) network model, and appropriately solution can be activated. For example, during an AC power failure, the RF radio would notify the control unit DU/CU, which would shut down all or nearly all of the other BWPs on the currently active carrier, while the specified will start moving all or nearly all user traffic to the subordinate BWP (eg, the initial BWP).

Next, if it is determined that there is an AC power failure or light network load at the node, a small BWP will be initialized at step 15 . The initial active small BWP is for UEs in early access until the UE is explicitly configured with BWP during or after RRC connection establishment. The initial active BWP is the default BWP unless otherwise configured.

At step 20, the user is moved or assigned to a smaller BWP. For example, based on the network configuration, the DU/CU may switch all or nearly all users and/or slices to a smaller BWP during AC power outages or light network loads to minimize power consumption. can be moved. The gNB will inform the UE of the change in assigned BWP. The UE will stop monitoring the current BWP and immediately switch to monitoring only the lower BWP. In multi-carrier operation, the DU/CU may also move all traffic to a single carrier based on BWP and/or slice prioritization.

Reductions from wider bandwidths directly affect the peak and user experience data rates. Operating the UE with a BW smaller than the configured CBW may allow support for wideband operation while reducing power. In step 25, the adaptive bandwidth module continues to monitor AC power outages or light network loads, and if utility power is restored, in step 35, BWP is restored for the entire channel. After full power is restored or RAN load increases, the gNB may reactivate all dedicated BWPs and/or slices and seamlessly move users to their individual BWPs and/or slices.

In step 40 normal operation is resumed again and the power consumption level is increased. Alternatively, if at step 25 it is still determined that there is an AC power failure or light network load, feedback action occurs at step 30 to delay the restoration of normal operation at all BWPs for the entire channel BW. The node is still placed in limited operation configured with a small BWP and the BW adaptation unit continues waiting for utility power to resume or load to increase.

If the RAN scheduler operates in MU-MIMO operation and determines that all or nearly all of the users currently being served can be assigned to the same lower physical resource block (PRB), a bandwidth reduction operation and Allocation to corresponding UEs may also occur in multi-user MIMO (MU-MIMO) operation. In this case, the DU/CU units may block current transmissions occurring on other subcarriers (i.e., each PRB may consist of up to 12 subcarriers), also saving BS power. will bring Lower PRB allocations for MU-MIMO may also be prioritized based on active BWPs and/or pre-defined slice priorities.

FIG. 3 is an exemplary flow diagram of a smart bandwidth adaptive call flow for a smart bandwidth (BW) adapter controller in accordance with various embodiments. In FIG. 3, in a smart BW adaptive call flow, in step 305, the BW adapter controller is started, as in FIG. It is determined whether or not it has occurred. If the determination is affirmative, then at step 315 an initialization slice reassignment process is performed. At step 320, various slices are reassigned from their current slice assignments to smaller BWPs. Network slicing is configured such that each active slice is associated with a separate BWP, which is used to reduce power consumption by the UE accessing the gNB with pre-configured slice control and BWP association. It allows systematic automatic transfer of each active slice to the BWP in a scheduled order during power outages or light network loads.

For example, an operator may choose to merge all active slices within a network or at a node into a smaller BWP. The operator may choose to define profiles, settings, etc. for each BWP that make up the BW, and also define alternate slice mappings for allocation during power interruptions, AC power outages, light network loads, etc. may be useful if there are multiple BWPs that can be defined for use in such conditions when a full BW is not required or when power savings are desired. Offerings or selections can be incrementally assigned all at once and reassigned to normal operation in a similar manner. Operators may also discontinue offering some slices as needed, leaving only certain higher priority slices available for access by premiums used or both premium and non-premium. can choose to Additionally, usage can be selected for an entire preset period of time or configured for a given period of time to select a set of users. At step 32, the BW controller adapter, such as that of FIG. Continue with the selected configured and mapped slice. At step 335, when utility power is restored or the load increases above a certain threshold, all previous slices, or all slices that may have been enabled without previous restrictions, will be restored. , normal operation will be restored to all UEs given access.

FIG. 4 illustrates a functional diagram of minislot configurations before and after an AC power failure of an exemplary smart scheduler for minislot allocation and adaptive call flow in accordance with various exemplary embodiments. In various exemplary embodiments, in FIG. 4, the network 400 responds to an AC power failure or light load at 410 by transmitting desired DL/UL transmission patterns to UL and DL requests from various UEs. can provide. In FIG. 4, an exemplary embodiment schedules data in all slots that the UE during initial access for data allocation by the gNB (i.e., RAN+DU/CU) is available for AC power outage. An operating carrier (eg, 20 MHz) is shown with the default BWP configuration previously coupled to the scheduler unit. If an AC power outage occurs or the load is light and some channels are not in use, at 420 the minislot algorithm is enabled to enable and disable certain minislots during the slot configuration period. become. As mentioned above, minislots occupy 2, 4, or 7 OFDM symbols in a regular slot structure and can help achieve low latency in data transmission. The PDSCH channel is used to carry DL user data and the 5G channel types cover the logical and transport channels used in uplink and downlink with mappings between them. In response to minislot scheduling at 420, the number of minislots in the uplink channel at 425 and the downlink channel 430 at 430 is reduced. Similarly, in the downlink channel, the number of minislots can also be reduced. That is, the scheduler enables only certain minislots. At 435, the network again determines whether an AC power outage or light load continues. If not, the application returns (450) to restore normal slotted operation, the unenabled minislots are enabled, and the channel is restored for normal slotted operation. Reducing the number of minislots reduces the time it takes for a UE to receive a message and reduces the waiting time for transmission (receiving latency and waiting time). The UE proportional time in connected state is shortened after receiving or transmitting the last packet. After this, the UE moves to idle state, thus reducing the power consumption of the UE (ie trade-off connection latency time by the UE).

FIG. 5 is an exemplary power management system for choke-off active channels, beam-managing, and filtering network traffic by the scheduler and control unit in response to a detected power outage in the network according to one embodiment; explain the diagram.

In various exemplary embodiments, in FIG. 5, the network 500 responds to an AC power failure with/without a congested set of channels at 510 by implementing a number of cell sites to conserve power. initiate action. For example, actions may include initializing an adaptive channel management solution at 515 , initializing an adaptive beam management solution at 520 , and initializing adaptive network traffic management at 525 . Power management actions then include choking the selected congested channel at 530 . Power consumption is reduced by shutting off heavily loaded channels to a limited number of users. When each channel is choked off, the corresponding functional relationship of the amount of power to be reduced is indicated or detected by a control unit, scheduler, or the like, and the choke action of the channel is measured and determined according to the detected power reduction. Thus, rather than applying traffic management to ensure fairness only among users, traffic management algorithms or solutions may be used to control cell site traffic based on each individual channel being choked or not enabled. Additional considerations, such as congestion levels of network traffic per channel between users, would be taken into account in order to incrementally reduce power consumption in and extend backup battery life. Also, at 540, beam management not only ensures stable communication of network traffic, but also controls the power supplied to the various MIMO systems to more effectively account for channel choke action. Manage the power consumption of the entire beamset (ie, signal-to-noise ratio power management). MIMO antennas communicate with multiple clients using focused beams of radio waves (“beamforming”). This improves channel efficiency as well as data rate and reduces the possibility of interference. Beam management to reduce the power required for downlink and uplink transmission and reception. Finally, at 545, network traffic may also be filtered to minimize frame congestion and slot usage, thereby saving power. For example, to enable real-time voice and video, and to block or throttle applications such as P2P, social networks, traffic shaping rules implement traffic shaping that can reduce power consumption at base stations. When the channel is not congested, power consumption is reduced due to lower traffic rates. This traffic shaping is not particularly effective during high traffic loads because the traffic is throttled, and for certain application uses it allows lower traffic rates followed by lower power consumption. , there may still be no empty subframes left. At 550, again, the network determines whether an AC power outage with/without congested channel traffic continues. If not, the application reverts to restore normal channel and traffic operation (565), inactive or choked channels are enabled at 560, and any filtered Traffic is no longer subject to such actions.

FIG. 6 illustrates AC power interruption with or without congested channel traffic, channel choking, and traffic shaping by a power management system communicating with the scheduler and control unit to reduce power usage in response to power interruptions. , and an exemplary flowchart of beam management.

In FIG. 6, at task 605, an AC power failure is detected, or an impending AC power detected in another part of the network, communicated and received by a base station controller in response to various methods, for example. from current monitoring of the input current to the base station, via feedback (i.e. messages) of interruptions in power supply or AC power failure, or from monitoring of the traffic channel in the various slots and minislots used for UL and DL transmissions. Determined from congestion monitoring. Also, channel congestion may or may not be detected for the various channels that transmit data between the cell site and the user. At task 605, the power management system is initialized. For example, adaptive channel management systems are initialized in response to channel congestion and power outages. At task 610, traffic shaping management is applied to filter or shape network traffic transmissions. For example, the scheduler unit schedules UL and DL transmissions over variable durations of traffic data subframes in each minislot based on a frequency set where the traffic data subframes are part of a sequence of packet data transmitted in the slot. By enabling it, it supports low latency and reduced power consumption per reduced traffic transmission. At task 620, the cell site's channel is analyzed for congestion levels. Channels with higher levels of congestion are selected in the scheme for choke-off. At task 630, the channel is choked and a functional relationship is determined for the amount of power that is reduced in cell site usage as a result of disabling or choking off the channel. Also, the bandwidth allocated to other channels and cell sites remains unchanged. Also, the user may be moved from a choke-off channel to another channel within the schema. For example, a client may be moved from a 20Mhz or 40Mhz channel to another channel. At task 640, the power levels to the set of beams used for transmission at the cell site are modulated. For example, a cutoff channel may reduce traffic and may require power levels to be reduced or the operating settings of certain beamsets at the cell site to be changed. The signal-to-noise ratio may change, or the user may be shifted to different beam frequencies. Also, by identifying a drop in channel data rate, adjusted control of the power delivered to a particular beam can be adjusted while simultaneously maintaining a certain level of beam efficiency. Therefore, in order to reduce the power consumed at the cell-sites of the network while maintaining the current level of beam signal across the cell-sites, the power supplied to the beam structures used for UL and DL transmissions at the cell-sites A dynamic configuration is set for At task 650, network power levels or outages are rechecked. When network power is restored, at task 660 normal operation of the channel is restored. Any traffic shaping actions for power consumption reduction and beam power reduction are also restored to normal operating conditions. During a power outage, the initial BWP portion remains the same. That is, rather than changing the number of BWPs to reduce power consumption across the cell site, the power management system reduces the number of channels, thereby providing at least the same bandwidth for select channels that are not choked off. to maintain

FIG. 7 is an exemplary diagram of a UE and network configuration according to one embodiment. The UE 710 is to perform various logical solution functions for registering and receiving broadcast system information, starting PDU sessions to perform cell selection and reselection, ranking neighboring cells, configuring different operating modes of the UE, etc. of processors 815 . The UE 710 has a cell reselection module 725, an input/output interface 705, a memory 730 for storing measurement reports, neighboring cell ranking data, and calculating neighboring cell distances and other criteria, etc. by various solutions. and a measurement module 735 for access to nearby cells for premium and non-premium users. The network 740 includes a base station 775, a processor 745 for registering UEs for slice access, a cell ID module 755, a broadcast module 848 for broadcasting slice IDs, slice offset values for neighboring cells, and other system information. , an authentication module 750 for authenticating the UE, a network slice 770 , etc., and a BW adaptation module 860 . The UE 710 communicates with the network and reads system information broadcast in the cell 810 on which the UE 810 is camping in idle mode. For example, if UE 710 is camping on cell A, UE 710 will receive slice IDs and slice offset values for neighbor cells of cell A via transceiver 720, and the cell reselection process will be used to rank neighbor cells. A processor to perform and calculate measurements (e.g., using cell reselection logic or processes) using cell reselection formulas of cell reselection module 725 to select the next cell if based on 715 will process the information.

Scheduling unit 755 directs the various logical components within channel management and control unit 757 in traffic shaping and beam management, via an element management system (EMS) 790 (i.e., an alternative control unit). 757 and BW adaptation module 760 and the like. The control unit 757, together with the scheduling unit 755, also controls the radio receiver, UPS, battery circuits (i.e. DC power), active cell site (i.e. node) call/drop call/throughput, server (Fig. 1 ) by managing a set of frequency settings through an automated workflow of a sub-cell 810 for channel assignment, beam assignment, network traffic filtering, slot, minislot assignment, and minislots for the entire channel. An action may be taken to set the configuration period. EMS 790 monitors various nodes and cells in the network through distribution unit (DU) 830 and aggregation unit (CU) 840 and monitors various components of cell 810 to maintain cell site quality of service (QoS). or send commands to the component. Automated workflows maintain network availability and monitor the status of network devices, including utility power supplied to the network. EMS 790 may also be connected to multiple eNodeBs for power management. In the event of an AC power failure in the network, the automated workflow monitoring the network instructs the EMS 790 through various logic components to reduce the output power of the radio receiver and Other factors are also taken into account by communicating with the wireless receivers, cell sites, through a router (or another communication link) connected to server 820 during the reduction of the output power of the server 820 . This reduces DC power and UPS consumption.

In an exemplary embodiment, server 820 may be configured as an NB-IoT server, software for data collection and monitoring and communication via routers to activate automated workflows via EMS 790; Log messages for each base station and live status of all sessions (including information on signal, power, etc.) can be displayed.

After detecting utility power interruption, power failure, loss of power, and/or loss of AC power to the network, automated workflows monitoring components and networks detect changes and loss of power. The automated workflow configures via scheduling unit 755 for minislot allocation and frequency setting, BW adaptation module 760 for slice allocation, and available BWP in cell 810 in response to detected power loss. implement administrative functions; The EMS 790 communicates with the radio receiver, server 820, for sending messages to the receiver via the cell site router, for collecting cell statistics, and for performing appropriate plug-and-play functions for base station radio receivers. , and other components associated with the cell site. Automated workflows perform various functions for the element management system based on decisions from the BW adaptation module 760 and data from cell sites and base stations.

As explained, the power management system includes several data processing components, each of which is patentable and/or has patentable aspects, or processing hardware capable of implementing patentable automated processes. have This document is not intended to limit the scope of the claims or the invention in any way, as various components and aspects of the systems described herein may be implemented separately from other aspects. .

Claims (38)

an element management control unit;
a scheduler unit;
a control unit;
the element management control unit includes a set of distribution and aggregation units (DU/CU) for monitoring power and channel traffic conditions at multiple cell sites in the network;
The scheduler unit for transmitting and receiving user equipment (UE) data traffic data,
receiving control data for congested network channels in uplink (UL) and downlink (DL) transmissions from the UE;
configured to apply a channel management solution at a cell site to choke off congested channels via a scheduling scheme based on said control data for the amount of traffic data on the channel;
the control unit is coupled to the scheduler unit for managing network traffic at the cell site;
applying an adaptive traffic management solution to shape network data traffic on selected channels based on control data for traffic types on said channels;
configured to iteratively apply the channel and traffic management solution at the cell site based on the power and channel traffic state data received by the DU/CU;
A system for adaptive channel and traffic shaping management in said network. the control unit for applying an adaptive beam management solution to reduce power at the cell site, comprising:
provided to the beam configurations used for UL and DL transmissions at the cell-sites to maintain current levels of beam signal across the cell-sites while reducing power consumed at the cell-sites of the network 2. The system of claim 1, further comprising the control unit configured to dynamically configure settings for power. time domain based to reduce the power consumption of the UL and DL transmissions by reducing the amount of network traffic by applying a set of time domain scheduling periods for scheduling the network traffic on the channel. 3. The system of claim 2, further comprising the scheduler unit for implementing schedules. Configured to use a certain number of OFDM symbols to manage network traffic on congested channels by allowing a dynamic set of minislots to transmit and receive data requests on a scheduled basis 4. The system of claim 3, further comprising the scheduler unit configured as follows. 5. The system of claim 4, further comprising the control unit configured to maintain the same active bandwidth prior to power failure of selected channels not subject to choking at the cell site. 6. The system of claim 5, wherein the reduced traffic includes minislot lengths for minislot configuration periods of UL and DL transmissions comprising 2, 4, and 8 OFDM symbols. By enabling UL and DL transmissions over variable durations of traffic data subframes in each minislot based on the set of frequencies at which the traffic data subframes are part of the sequence of packet data transmitted in the slot. 7. The system of claim 6, further comprising the scheduler unit configured to support low latency and reduced power consumption per reduced traffic transmission. further said control unit configured to enable power management by performing one or more of a set of actions including choking congested channels, adapting beam management, and filtering network traffic at said cell site. 8. The system of claim 7, comprising: Already in progress for other UEs to enable immediate transmission of subframe data with low latency on less congested channels to reduce the amount of power consumed in response to ongoing traffic transmission 9. The system of claim 8, further comprising the scheduler unit configured to preempt transmission of subframe databases of . 10. The system of claim 9, further comprising the control unit responsive to detected power to restore choked channels and traffic shaped by control and filtering actions in a priority scheme. configuring an element management control unit including a set of distribution (DU) and aggregation units (DU/CU) for monitoring power and channel traffic at multiple cell sites in the network;
transmitting and receiving user equipment (UE) data traffic data by a scheduler unit;
receiving by the scheduler unit control data for congested network channels in uplink (UL) and downlink (DL) transmissions from the UE;
applying a channel management solution by the scheduler unit at a cell site to choke off congested channels via a scheduling scheme based on control data for the amount of traffic data on the channel;
Adaptive traffic management for shaping network data traffic on selected channels based on control data of traffic types on said channels by a control unit coupled to said scheduler unit for managing network traffic at said cell sites. applying the solution;
for adaptive channel and traffic shaping management, including iteratively applying by the control unit the channel and traffic management solution at the cell site based on the power and channel traffic state data received by the DU/CU. the method of. reducing power at the cell-sites to maintain current levels of beam signals across the cell-sites while reducing power consumed at the network cell-sites for UL and DL transmissions at the cell-sites; 12. The method of claim 11, further comprising applying an adaptive beam management solution by the control unit to dynamically configure settings for power supplied to beam configurations used. Network traffic by implementing a time-domain based schedule by the scheduler unit to reduce power consumption in the UL and DL transmissions and applying a set of time-domain scheduling periods for scheduling of the network traffic within a channel. 13. The method of claim 12, further comprising reducing the amount of The scheduler unit is used to set a certain number of orthogonal frequency division multiplexing (OFDM) symbols to allow mini-slots composed of subframe data when implementing transmission and reception of data requests in scheduling operations. 14. The method of claim 13, further comprising: 15. The method of claim 14, further comprising maintaining, by the control unit, the same active bandwidth prior to power outage of selected channels not subject to choking at the cell site. 16. The method of claim 15, wherein minislot lengths for minislot configuration periods for UL and DL transmissions include 2, 4, and 8 OFDM symbols. By enabling UL and DL transmissions over variable durations of traffic data subframes in each minislot based on the set of frequencies at which the traffic data subframes are part of the sequence of packet data transmitted in the slot. 17. The method of claim 16, further comprising: supporting low latency and reduced power consumption by the scheduler unit for each reduced traffic transmission. preventing, in response to a DL transmission, by the scheduler unit from allowing at least one minislot to receive a DL transmission outside an active bandwidth portion;
18. The claim of claim 17, further comprising, in response to a UL transmission, preventing, by the scheduler unit, from allowing at least one minislot to receive a UL transmission outside an active bandwidth portion. Method. enabling power management by the control unit by performing one or more of a set of actions including choking congested channels, adapting beam management, and filtering network traffic at the cell site; 19. The method of claim 18. an element management control unit including a set of distribution and aggregation units (DU/CU) for monitoring power and channel traffic at multiple cell sites in the network;
a downlink (DL) pattern and an uplink (DL) pattern comprising at least two concatenated patterns that are repeated in cooperation with each other in a periodic manner during slot configuration for New Radio (NR) communications by users at cell sites in said network; a scheduler unit for a user equipment (UE) for enabling and disabling a set of minislots of the UL) pattern;
In response to a request by a user, the scheduler unit reserves a number of minislots for use in each slot configuration period, and the reserved slot number depends on the AC power failure condition and the DU/ responsive to at least one of decreasing channel traffic based on data received by the CU about said condition;
A system for adaptive minislot management in said network. configured to initialize a set of minislots for use when scheduling a UE with a minislot allocation to dynamically inform the UE about UL transmission and DL reception patterns for each minislot configuration period; An initial set of minislots is enabled in response to data received about power loss and channel traffic reduction in minislots from the DU/CUs monitoring cell sites of the network. 21. The system of claim 20, comprising: the UL and the UL by reducing slot time via changing the frequency of the minislot configuration periods by applying a set of time domain scheduling periods in which a selected number of minislots are enabled in each time domain scheduling period; 22. The system of claim 21, further comprising the scheduler unit for implementing a time-domain based schedule to reduce power consumption of DL transmissions. 23. The method of claim 22, further comprising the scheduler unit configured to use a fixed number of OFDM symbols to enable a dynamic set of minislots to transmit and receive data requests in scheduled operations. System as described. Allocation of minislots over a wide bandwidth is considered unnecessary by the scheduler unit due to the reduced amount of data to be transmitted indicating that fewer active minislots are required at the cell site. 24. The system of claim 23, further comprising the scheduler unit for allocating OFDM symbols to enable or disable a certain number of minislots within the slot configuration period for delivering channel traffic. 25. The system of claim 24, wherein minislot lengths for minislot configuration periods for UL and DL transmissions include 2, 4, and 8 OFDM symbols. Supports low latency and reduced power consumption per minislot transmission by allowing UL and DL transmissions over variable durations per minislot based on the set of frequencies that the minislot is part of the slot 26. The system of Claim 25, further comprising the scheduler unit configured to: 27. The claim of claim 26, comprising, in response to the DL transmission, the scheduler unit being configured to not allow minislots to receive DL data transmissions outside of active bandwidth portions. system. To enable immediate transmission of data with low latency to reduce the amount of power consumed in response to ongoing slot transmissions, already ongoing slot-based transmissions to other UEs. 28. The system of claim 27, further comprising the scheduler unit configured to preempt. 29. The claim of claim 28, further comprising, in response to a UL transmission, the scheduler unit being configured to not allow minislots to receive DL data transmissions outside of active bandwidth portions. system. configuring an element management control unit including a set of distribution (DU) and aggregation units (DU/CU) for monitoring power and channel traffic at multiple cell sites in the network;
a downlink (DL) pattern for adaptive minislot allocation comprising at least two concatenated patterns that co-operate and repeat with periodicity for New Radio (NR) communications by users at cell sites in the network; configuring by a scheduler unit to enable and disable a set of minislots in an uplink (UL) pattern;
In response to a request by a user, a reserved slot number is responsive to at least one of an AC power failure condition and a decrease in channel traffic based on data about said condition received by said DU/CU. A method for adaptive minislot management comprising reserving by the scheduler unit a number of minislots for use in each slot configuration period. by the scheduler unit a set of minislots to use when scheduling a user equipment (UE) with a minislot allocation to dynamically inform the UE about UL transmission and DL reception minislot patterns for each minislot configuration period; initializing an initial set of minislots responsive to data received from the DU/CUs monitoring cell sites of the network about power loss and decreasing channel traffic in minislots; 31. The method of claim 30, further comprising enabling with By shortening the minislot time via changing the frequency of said minislot configuration periods by applying a set of time domain scheduling periods in which a selected number of minislots are enabled in each time domain scheduling period. 32. The method of claim 31, further comprising implementing time domain scheduling by the scheduler unit to reduce power consumption of UL and DL transmissions. 33. The method of claim 32, further comprising using by the scheduler unit a fixed number of orthogonal frequency division multiplexing (OFDM) symbols to enable minislots when implementing transmission and reception of data requests in scheduling operations. described method. If the allocation of minislots over a wide bandwidth is considered unnecessary due to a decrease in the amount of data transmission indicating that fewer active minislots are required at the cell site, then the allocation of minislots for channel traffic is considered unnecessary. 34. The method of claim 33, further comprising assigning by the scheduler unit by OFDM symbols to enable or disable minislots within a slot configuration period. 35. The method of claim 34, wherein minislot lengths for minislot configuration periods for UL and DL transmissions include 2, 4, and 8 OFDM symbols. said scheduler unit for low latency and reduced power consumption per slot transmission by enabling UL and DL transmissions over a variable duration per minislot based on the set of frequencies that minislot is part of the slot; 36. The method of claim 35, further comprising supporting by: preventing, in response to a DL transmission, by the scheduler unit from allowing at least one minislot to receive a DL transmission outside an active bandwidth portion;
37. The method of claim 36, further comprising, in response to a UL transmission, preventing, by the scheduler unit, at least one minislot from receiving a UL transmission outside the active bandwidth portion. Already on-going slot-based to other UEs to enable immediate transmission of data with low latency to reduce the amount of power consumed at the cell site in response to ongoing slot transmissions 38. The method of claim 37, further comprising preempting, by the scheduler unit, transmission of .

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