Ongoing Activities related to WP4d control of networks

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Ongoing Activities related to WP4d(control of
networks)

• Fredrik Gunnarsson, Erik Geijer Lundin
• (PhD Stud David Törnqvist, Frida Eng)
• (Prof. Ljung, Glad, Gustafsson, Hansson)

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Cocktail Party Allegory
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Activities in Brief

• Characterizing Feasibility
• Radio Interface Load Estimation
• (Power Control)
• Distributed (Radio) Resource Control
• Stability Analysis

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Characterizing Feasibility

• Def. A wireless network is feasible if there
  exists power levels to meet QoS requirements for
  all connections.
• General
• Downlink
• Uplink
• Advanced receivers

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Radio Interface Load Estimation

• Uplink

Radio Network Controller (RNC)

• Relation to feasibility
• Consistency
• Convergence
• Relation to Link Budgets

SHO meas
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Evolved 3G

• Enable higher data rates
• Shorten delays
• Adaptability

Mobility
RNC
RRM
Base Station
Power Control
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Evolved 3G, Downlink (HSDPA / HDR)

• Fast Resource Re-alloc (scheduling)
• Fast and Efficient Retransmission
• Short Transport Blocks (2 ms)
• Better Power Utilization

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Evolved 3G, Downlink, Contd

• Scheduling
• Using the Best Effort channel with Prioritization
  (e.g. streaming)
• Transport data flow control

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EV. 3G, DL Flow Control
Transport Network
Scheduler
RNC
Buffers
Flow Control
Base Station
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Evolved 3G, Uplink (WCDMA Enhanced Uplink)

• Fast Resource Re-alloc (scheduling)
• Fast and Efficient Retransmission
• Short Transport Blocks (2 ms)
• Better Noise Rise Utilization

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Ev 3G, Uplink, Contd
Mobility
RNC

• Distributed Uplink RRM
• Fast local node (re-)allocation
• Feasibility / Robustness
• Central node coordination.
• Limited feedback
• Mobile / Network centric

• Distributed Uplink RRM
• Fast local node (re-)allocation
• Feasibility / Robustness
• Central node coordination.
• Limited feedback
• Mobile / Network centric

• Distributed Uplink RRM
• Fast local node (re-)allocation
• Feasibility / Robustness
• Central node coordination.
• Limited feedback
• Mobile / Network centric

• Distributed Uplink RRM
• Fast local node (re-)allocation
• Feasibility / Robustness
• Central node coordination.
• Limited feedback
• Mobile / Network centric

RR Coord
Base Stations
Network-centric
Network-centric Mobile-centric
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Uplink Tranmission Timing
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Planned Contrib, First 9 mo

• Control Problems within Wireless Communications
• Uplink Distributed RRM
• Decentralized control with central node
  coordination
• Feasibility and robustness analysis
• Base station-centric vs. Mobile-centric
  algorithms
• Downlink transport data flow control