name: SF
full_form: Spreading Factor
context: is the number of E-RUCCHs associated to the ith FPACH and NE-RUCCHi equals to . When SF of PRACH code equals to 16, LiE will be 2, otherwise LiE will be 1 When SF of PRACH code equals to 4, SF of E-RUCCH will be 8, otherwise E-RUCCHs has the same SF with PRACH. When nE-RUCCHi equals to nRACHi, E-RUCCH will share the same code resource with PRACH. And when SF of PRACH code equals to 4, the code resource assigned to PRACH including two codes (code i and code i+1) of SF 8, E-RUCCH can use the ith code of SF 8. If FPACHi sent an acknowledgement for E-RUCCH information, the sub-frames on which an acknowledgement is sent on FPACHi is fulfilling the following relation: (SFNâ mod LiE)=nE-RUCCHi ; nE-RUCCHi=0,â¦, NE-RUCCHi-1, Where, SFNâ is the sub-frame number of the acknowledgement on FPACH Accordingly, the code resource assigned to PRACH may be used by PRACH or E-RUCCH, we should make two prescript avoiding the collision between PRACH and E-RUCCH. When Node B sent a FPACHi for in sub frame
description: The Spreading Factor (SF) is a critical parameter in the context of Random Access Channel (RACH) procedures, specifically related to the transmission and scheduling of information on the Physical Random Access Channel (PRACH) and Enhanced-Random Access Channel (E-RUCCH). It determines the number of E-RUCCHs associated with a given FPACH and influences the code resource assignment for PRACH and E-RUCCH. The SF value affects the handling of scheduling information transmission, particularly in scenarios involving different UpPCH shifting settings and TDD configurations.
explanation: The context explicitly mentions the Spreading Factor (SF) as a parameter influencing various aspects of RACH procedures, such as code resource assignment and scheduling information transmission. This indicates that SF is a critical network attribute for operation, fitting the definition of a Parameter.
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