 to the Terms of Use as given at the website. Radio and MS-PCUSN Interfaces Chapter 6 Figure 6-16 Temporary Block MS1 listens to all radio blocks sent on TS2 Flow. (DL_CONTROL_TS=TS2). 234567 BITMAP BITMAP BITMAP BITMAP Resource Assignment (or Immediate Assignment in the case of short or one-phase access), whereas the DL control time slot of mobile station 2 is time slot 5 (which is not considered in this example). On the uplink, mobile station 1 and mobile station 2 are multiplexed through their bitmaps for their respective access. They successively transmit or not on time slot 2 UL, according to the successive values decoded on their bitmaps. When the bitmap shows a 0 concerning time slot 2, the mobile station cannot access time slot 2 UL on the corresponding block, but when the bitmap shows a 1, the mobile station can send information on time slot 2 UL, either with an RLC data block (most often) on a PDTCH logical channel or an RLC/MAC control block on a PACCH logical channel. The uplink and downlink access starting times (the same for UL and DL) of each mobile station are indicated by the parameter TBF STARTING TIME transmitted with the other parameters in the Packet Resource Assignment. In the previous example, we assume that the TBF STARTING TIME is the same for both mobile stations (to simplify the drawing). Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com) Copyright © 2004 The McGraw-Hill Companies. All rights reserved. Any use is subject to the Terms of Use as given at the website. Radio and MS-PCUSN Interfaces Radio and MS-PCUSN Interfaces Dynamic Uplink (UL) Allocation In dynamic UL allocation, shown in Figure 6-17, the bitmap is not trans- mitted for uplink access, but a number, called an USF and coded onto 3 bits, is attributed to each mobile station. The access is dynamically granted to each mobile station communicating on the same PDCH UL through the DL transmission of this USF in a traffic radio block (or in a dummy radio block if no DL traffic is presen