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stds-80220-requirements: Packet Error Rate requirement



Title: Packet Error Rate requirement

Hi All,

Per the request on Monday here is a re-write of paragraph 4.1.10, Packet Error Rate, to initiate the discussion:

4.1.10  Packet Error Rate
The physical layer shall be capable of adapting the modulation, coding, and power levels to accommodate RF signal deterioration between the BS and user terminals.  The air interface shall use appropriate ARQ schemes to ensure that error rates are reduced to a suitably low level in order to accommodate higher level IP based protocols (for example, TCP over IP).  If the received Eb/No exceeds the minimum required value for reliable reception as specified in Section 4.2.1, the packet error rate for IP packet for any active call shall be less that 1 percent after channel decoding for error correction and before ARQ with a 95% confidence. 

Rationale
The purpose of the requirement is to specify the system performance for delivery of IP packets to the network interface from the air interface.  It is not written as a RF sensitivity requirement, which is covered in the RF section (4.2.1). 

An implied requirement is that if the link for the active call cannot maintain a packet error rate < 1%, the call "shall" be terminated.

Regards

Joseph Cleveland
Director, Systems & Standards
Wireless Systems Lab
Samsung Telecommunications America
Richardson, TX 75081
(O) 972-761-7981  (M) 214-336-8446  (F) 972-761-7909