Wireless Transmitter Beam Coverage Adjustment

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Solution Overview

Problem

In wireless telecommunications networks, the number of User Equipment (UEs) sharing a specific beam often exceeds the number of data streams that the beam can support, leading to inefficiencies in data transmission and increased overhead.

Innovation Solution

A method where the transmitter dynamically adjusts beam coverage areas based on the count of UEs in different sections of its coverage area, transmitting progressively narrower beams where the count exceeds a predetermined threshold to ensure optimal data stream support and reduce overhead.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of energy

If a single UE-specific BF CSI-RS beam is used for channel parameter estimation, then the overhead for CSI estimation is reduced, but the number of UEs sharing the beam may exceed the number of data streams the beam can support

Engineering Contradiction:
Improveoverhead for CSI estimationVSAvoidnumber of data streams supported
Core Design Contradiction:
Loss of energyVSProductivity

Solution Approach 1:

The patent segments the coverage area into multiple sections and transmits different numbers of beams to different sections based on UE distribution. This segmentation allows the system to reduce overhead in areas with fewer UEs while maintaining sufficient data stream support in areas with higher UE density, thus resolving the contradiction between reducing overhead and supporting adequate data streams.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent dynamically adjusts the number of beams transmitted to different sections based on real-time UE distribution information. The base station receives data indicating UE counts in different sections and adaptively configures beam transmission accordingly, making the system flexible and responsive to changing conditions, thereby optimizing both overhead reduction and data stream support capacity.

Inventive Principle:
Principle #15Dynamics

2Quantity of substance

If beam coverage area is increased to cover more UEs, then more UEs can be served, but the number of UEs may exceed the data stream capacity of the beam

Engineering Contradiction:
Improvenumber of UEs servedVSAvoiddata stream capacity
Core Design Contradiction:
Quantity of substanceVSProductivity

Solution Approach 1:

The patent applies local quality by transmitting different numbers of beams to different sections based on local UE distribution characteristics. Sections with higher UE density receive more beams to maintain data stream capacity, while sections with fewer UEs receive fewer beams to reduce overhead. This localized adaptation resolves the contradiction between serving more UEs and maintaining data stream capacity.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent changes the parameter of beam coverage area and number of beams transmitted based on UE distribution parameters. By receiving data indicating UE counts in different sections and adjusting beam transmission parameters accordingly, the system optimizes the balance between covering more UEs and maintaining adequate data stream capacity in each local area.

Inventive Principle:
Principle #35Parameter changes

3Productivity

If the number of beams transmitted is increased to support more data streams, then data stream capacity is improved, but the signaling overhead increases

Engineering Contradiction:
Improvedata stream capacityVSAvoidsignaling overhead
Core Design Contradiction:
ProductivityVSLoss of energy

Solution Approach 1:

The patent dynamically changes the parameter of number of beams transmitted based on UE distribution information. By adjusting this parameter adaptively - transmitting more beams only where needed and fewer beams where UE density is low - the system optimizes the trade-off between data stream capacity and signaling overhead, improving productivity while minimizing energy loss.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent applies different beam transmission configurations to different local sections based on their specific UE distribution characteristics. This localized approach ensures that signaling overhead is minimized in areas where it is not needed while maintaining adequate data stream capacity where UE density requires it, thus resolving the contradiction between these two parameters.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS11234240B2Wireless telecommunications network
Publication Date: 2022.01.25 BRITISH TELECOM PLC
  • US11234240B2 patent drawing
  • US11234240B2 patent drawing
  • US11234240B2 patent drawing

AI summary

This disclosure provides a method in a wireless telecommunications network, and a wireless telecommunications network node for implementing the method, the network including a transmitter having an overall coverage area and a plurality of User Equipment (UE) within the transmitter's overall coverage area, the method including receiving data indicating a first count of UEs of the plurality of UEs disposed in a first section of the transmitter's overall coverage area and further indicating a second count of UEs of the plurality of UEs disposed in a second section of the transmitter's overall coverage area; comparing the first and second counts to a predetermined threshold; and transmitting a first data beam having a first beam coverage area and a second data beam having a second beam coverage area, wherein a magnitude of the first beam coverage area is based on the comparison of the first count to the predetermined threshold and a magnitude of the second beam coverage area is based on upon the comparison of the second count to the predetermined threshold.