Sony Group has filed a patent for an enhanced TID-to-UP mapping system in wireless communication networks. The system allows for multiple TIDs to be mapped to the UPs of the same access category (AC), enabling differentiation of transmitted data. This mechanism aims to enhance low latency performance in wireless communication. GlobalData’s report on Sony Group gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Sony Group, Adaptive video coding was a key innovation area identified from patents. Sony Group's grant share as of September 2023 was 37%. Grant share is based on the ratio of number of grants to total number of patents.
Enhanced tid-to-up mapping for wireless communication in a network
A recently filed patent (Publication Number: US20230319620A1) describes an apparatus for wireless communication in a network. The apparatus includes a wireless communication circuit, a processor, and a non-transitory memory. The wireless communication circuit is responsible for transmitting frames between the medium access control (MAC) layers of an IEEE 802.11 network. It can operate as a wireless station (STA) or as an access point (AP) STA, allowing communication with other wireless stations (STAs) using carrier sense multiple access/collision avoidance (CSMA/CA) and enhanced distributed channel access (EDCA) mechanisms.
The apparatus utilizes a wireless communications protocol that involves transmitting a transmit identifier-to-user priority (TID-to-UP) mapping from a receiving STA to a transmitting STA. Frames transmitted to the receiving STA are classified by transmit identifiers (TIDs), and the traffic of each TID is mapped to a user priority (UP) according to the TID-to-UP mapping. The TID-to-UP mapping allows for differentiation of traffic based on priority levels.
The patent also describes various configurations and mappings within the apparatus. For example, frames can be classified by TID of a stream classification service (SCS) traffic stream. The TID and UP with the same value, not in the TID-to-UP mapping, follow the current IEEE 802.11 rules to differentiate traffic. Multiple TIDs can be mapped to the same UP, and a TID with a value between 0 through 7 can be mapped to a UP with a different value.
Additionally, the patent discusses the transfer of differentiated services codepoint (DSCP) ranges between UPs in the TID-to-UP mapping. The apparatus allows for the transfer of DSCP ranges to another UP, a closest neighboring UP, a closest neighboring lower-priority UP, or another UP in the same access category (AC).
Overall, the patent presents an apparatus for wireless communication that implements a wireless communications protocol involving TID-to-UP mapping and classification of frames. The apparatus allows for the differentiation of traffic based on priority levels and provides flexibility in mapping TIDs to UPs.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
