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DCH frame protocol provides the following services:
- Transport of TBS across Iub and Iur interface.
- Transport of outer loop power control information between the SRNC and the Node B.
- Support of transport channel synchronisation mechanism.
- Support of node synchronization mechanism.
- Transfer of DSCH TFCI from SRNC to Node B.
- [3.84 Mcps TDD - Transfer of Rx timing deviation from the Node B to the SRNC.]
- Transfer of radio interface parameters from the SRNC to the Node B
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Common downlink channel without closed-loop power control used for transmission of relatively small amount of data.
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A contention based uplink channel used for transmission of relatively small amounts of data, e.g. for initial access or non-real-time dedicated control or traffic data.
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DCH frame protocol provides the following services:
- Transport of TBS across Iub and Iur interface.
- Transport of outer loop power control information between the SRNC and the Node B.
- Support of transport channel synchronisation mechanism.
- Support of node synchronization mechanism.
- Transfer of DSCH TFCI from SRNC to Node B.
- [3.84 Mcps TDD - Transfer of Rx timing deviation from the Node B to the SRNC.]
- Transfer of radio interface parameters from the SRNC to the Node B
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Common downlink channel without closed-loop power control used for transmission of relatively small amount of data.
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