17756764. DMRS ALLOCATION IN SUB-BAND FULL DUPLEX simplified abstract (QUALCOMM Incorporated)
Contents
DMRS ALLOCATION IN SUB-BAND FULL DUPLEX
Organization Name
Inventor(s)
Ahmed Attia Abotabl of San Diego CA (US)
Muhammad Sayed Khairy Abdelghaffar of San Jose CA (US)
Alexandros Manolakos of Escondido CA (US)
Krishna Kiran Mukkavilli of San Diego CA (US)
Wanshi Chen of San Diego CA (US)
Tingfang Ji of San Diego CA (US)
DMRS ALLOCATION IN SUB-BAND FULL DUPLEX - A simplified explanation of the abstract
This abstract first appeared for US patent application 17756764 titled 'DMRS ALLOCATION IN SUB-BAND FULL DUPLEX
Simplified Explanation
This patent application describes a system for allocating DMRS (Demodulation Reference Signal) in sub-band FD (Frequency Division) for UL (Uplink) and DL (Downlink) data transmission. Here are the key points:
- For UL data transmission, a UE (User Equipment) determines which symbol(s) in a subframe will receive DL DMRS, allowing the UE to align the transmission of UL DMRS with the reception of DL DMRS.
- For DL data transmission, a BS (Base Station) determines whether a PUSCH (Physical Uplink Shared Channel) will be received from the UE in a subset of symbols or not. Based on this determination, the BS inserts a DL RS (Reference Signal) within the subset of symbols.
- The system includes various devices, apparatus, and methods, including computer programs encoded on storage media, to implement the DMRS allocation in sub-band FD.
Potential applications of this technology:
- Wireless communication systems: This technology can be applied in various wireless communication systems, such as cellular networks, to improve the efficiency and reliability of UL and DL data transmission.
- 5G and beyond: As the demand for higher data rates and lower latency increases with the deployment of 5G and future generations of wireless networks, this technology can help optimize the allocation of DMRS for improved performance.
Problems solved by this technology:
- Alignment of UL and DL DMRS: By allowing the UE to determine the symbols for DL DMRS reception, the system ensures the alignment of UL and DL DMRS, which is crucial for accurate demodulation and decoding of data.
- Efficient DL RS insertion: The BS determines the symbols where a PUSCH will be received or not, enabling the efficient insertion of DL RS within the appropriate subset of symbols.
Benefits of this technology:
- Improved synchronization: The alignment of UL and DL DMRS ensures better synchronization between the UE and BS, leading to enhanced data transmission and reception.
- Enhanced performance: By optimizing the allocation of DMRS, this technology can improve the overall performance of wireless communication systems, including higher data rates and reduced interference.
- Flexibility and adaptability: The system allows for dynamic determination of DMRS allocation based on the specific requirements of UL and DL data transmission, providing flexibility and adaptability to changing network conditions.
Original Abstract Submitted
This disclosure provides systems, devices, apparatus and methods, including computer programs encoded on storage media, for DMRS allocation in sub-band FD. For transmission of UL data in a set of symbols having UL DMRS in at least one symbol, a UE may determine which symbol(s) in a subframe will receive DL DMRS so that the UE may align the transmission of the UL DMRS with a reception of the DL DMRS. For transmission of DL data in a set of symbols having a DL DMRS, a BS may determine for a first subset of symbols that a PUSCH will be received from the UE or determine for a second subset of symbols that a PUSCH will not be received from the UE. The BS insert a DL RS within the first subset of symbols or the second subset of symbols based on the determination regarding the PUSCH.
