TH8218B - Temporal and synchronized cellular data flow management (TDMA). - Google Patents

Abstract

In cellular TDMA (Time Division Multiple Access) systems, mechanisms for rhythm adjustment and balancing are provided. A key characteristic is the placement of rhythm adjustment information (s/s) sufficiently far from the TDM start to maintain the integrity of that information at neighboring cells. Furthermore, the s/s information is placed so close to the TDM start that adaptive balancing of the preceding s/s information is necessary for reasonably reliable recovery. Balancing is further reinforced by providing, approximately halfway between the s/s information and the end of the TDM, additional information (cc) which may be used for retraining balancing. Consequently, the balancing agent performs non-adaptive backward balancing of the preceding s/s information, and adaptive balancing of the cc information. Following the syntax (s/s) information, it is retrained using a known bit sequence elsewhere within the TDM groove; this additional information is characterized by the known bit sequence used to identify the cell.

Claims (10)

1. The method of rhythm adjustment and equalization in TDMA (Time Division Multiple Access) cellular systems provides rhythm adjustment information (S/S) located away from the TDM groove (M1) initiation point to avoid collisions with adjacent cells. A key characteristic is the process of providing rhythm adjustment information within the TDM groove (M1) in a way that unmodified equalization of the information preceding the rhythm adjustment information is performed after the S/S information is received. 2. The method under claim 1, with the additional key characteristic being the subsequent provision of additional information (CO) that avoids collisions with adjacent cells, which may allow for controlled equalization. 3. Method according to claim 2, where additional information (CO) is provided between the adjustment information, the rhythm (S/S) and the end of the groove (M1). 4. Method according to claim 2, where the additional information (CO) contains the sequence of bits used to identify the cell. 5. Method according to claim 4, where the bit sequence is used to verify the recipient of the forwarding. 6. The method under claim 4, where the bit sequence is used to silence the sound. 7. Methods for timing and synchronizement in TDMA (Time Division Multiple Access) cellular systems, characterized by the following steps: Non-modifying synchronizement of information that receives a signal burst prior to the synchronization (S/S) information after receiving the synchronization information; and modified synchronizement of information that follows the synchronization information. 8. The method under claim 7, characterized by a process of control and adjustment using a known bit sequence (CO). 9. Method according to claim 8, where the known bit sequence consists of the sequence that identifies cells (A, B). 10. A set of equipment for timing and synchronization in a TDMA (Time Division Multiple Access) cellular system, with the following key features: equipment for performing unmodified synchronization on information acting as timing (S/S) information after receiving the timing information; and equipment for performing modifiable synchronization on information following that timing information.