Mobile Station Uplink Data Block Encoding with Piggy-Backed ACK/NACK
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Solution Overview
Problem
In wireless telecommunications systems, particularly in GSM, the existing methods face challenges in efficiently encoding and transmitting uplink data blocks with a Piggy-backed ACK/NACK bitmap field, due to the need to adhere to both block sequencing rules and PAN timeslot rules, which complicates the allocation and encoding of data blocks before receiving USF fields, leading to difficulties in determining the correct timeslot for transmission.
Innovation Solution
The mobile station is configured to allow encoding of data blocks in advance by transmitting a response to a poll for an RLC data block with a Piggy-backed ACK/NACK bitmap using an uplink timeslot corresponding to the poll, and to send data blocks out of order or in a specific order within a radio block period, independent of the timeslot used for the poll, thereby simplifying the encoding process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the mobile station adheres to both block sequencing rules and PAN timeslot rules, then the data block transmission reliability is improved, but the encoding complexity and processing time increase
Solution Approach 1:
The mobile station encodes data blocks in advance based on pre-received poll information, before the actual transmission time slot arrives. This preliminary encoding action allows the station to prepare data blocks ahead of time, reducing the complexity of real-time encoding while maintaining transmission reliability through proper sequencing and timeslot adherence.
2Measurement precision
If the mobile station strictly follows PAN timeslot rules for transmission, then the transmission accuracy is improved, but the flexibility in data block ordering is reduced
Solution Approach 1:
The system allows dynamic adjustment of data block transmission order within the radio block period. The mobile station can transmit data blocks in different sequences (including out-of-order transmission) while still adhering to the PAN timeslot rules for acknowledgment feedback. This dynamic flexibility maintains transmission accuracy through proper timeslot adherence while allowing optimized data ordering for efficiency.
3Manufacturing precision
If the mobile station waits to receive USF fields before encoding data blocks, then the encoding accuracy is improved, but the transmission time is delayed
Solution Approach 1:
The mobile station receives poll information in advance and begins encoding data blocks before the actual transmission time slot. This preliminary action eliminates the time delay by preparing data blocks ahead of time. The encoding accuracy is maintained through proper sequencing rules and PAN timeslot adherence, allowing the station to transmit without unnecessary delays while preserving encoding precision.
Data Source
AI summary
Systems and methods for allocating and transmitting uplink data block transmissions with piggy-backed ACK/NACK bitmap field are provided. In a specific example, a mobile station receives a request for a data block combined with control information (DBCCI). The mobile station responds by transmitting a DBCCI using at least one timeslot corresponding to a timeslot used for the request. At least some of the time, the mobile station sends data blocks in an order different than that would be otherwise used (e.g. block sequence order).