TIA TIA/EIA-136-933

Abstract

<strong>Introduction</strong> <br>TIA/EIA-136-933 describes the fixed-coding mode of the MAC (Medium Access Control) function specified in TIA/EIA-136-332. Higher layers and other functions within the RR (Radio Resource) layer may use the MAC to transport data across a GPRS-136 (General Packet Radio Service) radio interface. <br>The MAC provides the following services: <br>&#8226; High-priority bidirectional data transport between the base station and each active mobile station. For the uplink, data transport is acknowledged. For the downlink, data transport may be acknowledged or unacknowledged. <br>&#8226;Low-priority bidirectional data transport between the base station and each active mobile station. For the uplink, data transport is acknowledged. For the downlink, data transport may be acknowledged or unacknowledged. <br>&#8226;Unidirectional broadcast data transport from the base station to multiple mobile stations. <br>These services are provided via two service-access points per mobile station: one for bidirectional data and one for broadcast data. <br>The MAC requires the services of the physical layer specified in TIA/EIA-136-331. These services are accessed via up to 9 service-access points: one service-access point for each subchannel provided by the physical layer. <br>This standard is descriptive, and therefore, it contains no requirements. If this standard conflicts with TIA/EIA-136-332, the latter shall govern.