TABLE OF CONTENTS Point-to-point data transmission service is defined by three things: rate, errors, and delay. The bit rate of a data service is typically well defined by a standard. The standard reflects the best data rate that can be provided reliably over a given interface.cdmaOne, cdma2000, wideband CDMA (W-CDMA), and time division synchronized CDMA (TD-SCDMA) each have data services defined in the standard. In code division multiple access (CDMA), data capacity, that is, the number of data links that can be supported, is determined by the data rate of the service and the bit-error-rate (BER) requirement. That is, the maximum capacity of a server, cell, or system can be determined by the data rate given each user and the BER requirement. The actual capacity will vary depending on the radio link conditions and the resulting E b/ N 0 requirement (the ratio between energy per bit and interference). [1]
The delay is mostly determined by the packet pipes between the base station and the public packet data network (PPDN). Jitter within the transmission channel is not significant to the user. The higher-level data services can ensure that the packets are processed in order even if they arrive out of order, and the slight addition to delay created by this management of jitter is not significant in data transmission.
[1] The Eb/N0 requirement is a physical result of the BER requirement set in the quality of service (QoS) defined in the data transmission standard.
