ABSTRACT
Contents 10.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 304 10.2 Radio Resource Management in General . . . . . . . . . . . . . . . . . . . . . . . . . 305
10.2.1 Common Functions and System Dimensioning . . . . . . . . . . 306 10.2.1.1 ISO/OSI Dimension . . . . . . . . . . . . . . . . . . . . . . . . . . . . 306 10.2.1.2 Dimension over the System Level
and Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 307 10.2.1.3 Function Allocation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 307
10.2.2 System-Specific Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310 10.2.2.1 Radio Access Scheme Identification . . . . . . . . . . . 311 10.2.2.2 Power Control in a WCDMA System . . . . . . . . . . 311 10.2.2.3 Handover in a CDMA System . . . . . . . . . . . . . . . . . . 312 10.2.2.4 Packet Scheduling and Function Evolution . . . 312 10.2.2.5 Trunk Resource Allocation in an
OFDMA System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 314 10.3 Radio Resource Management for Distributed Wireless Systems. . 315
10.3.1 Multi-loop RRM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 317 10.3.1.1 Outer-Loop Power Control. . . . . . . . . . . . . . . . . . . . . 317
10.3.1.2 Profile-Based User Scheduling in the Middle Loop. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 318
10.3.1.3 Cooperative Power Control . . . . . . . . . . . . . . . . . . . . 318 10.3.2 Hybrid Transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 319
10.4 Joint Radio Resource Management for Heterogeneous Networks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320 10.4.1 Network Coupling Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . 320 10.4.2 Joint Admission Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 323 10.4.3 Joint Scheduling Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 324 10.4.4 Intersystem Handover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 326 10.4.5 Intersystem Load Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 327
10.5 Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 329 References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 330
10.1 Introduction Along with the rapid growth of wireless communication during the past few decades, the mobile communication system has been widely accepted as a vehicle to convey information between people. However, the future mobile radio network faces challenges of high Quality-of-Service (QoS) requirements by supporting high mobility and throughput for multimedia services with the encountered scarcity of spectrum resources. The frequency spectrum physically limits the capacity of a radio network; thus, effective solutions to increase spectrum efficiency are required.
