Dynamic Group Common Control Channel Addressing
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Solution Overview
Problem
Current wireless communication systems face inefficiencies in addressing multiple UEs with control messages, leading to increased signaling overhead and limited control information transmission due to the high number of bits required for addressing, especially when a large number of UEs need to be addressed simultaneously.
Innovation Solution
The described techniques utilize a prime number and integer values associated with control information segments to determine the applicability of a control message to a UE, allowing UEs to efficiently decode relevant information by processing the prime number, integer values, and their own identifier, thereby reducing the number of bits needed for addressing and improving message efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If traditional addressing techniques are used to address multiple UEs in a control message, then each UE can be individually addressed, but the number of bits required for addressing increases significantly, leading to increased signaling overhead
Solution Approach 1:
The patent changes the addressing parameter from using full UE identifiers to using hash values derived from UE identifiers through a hash function. This parameter transformation reduces the bit length required for addressing while maintaining the ability to uniquely identify and address multiple UEs in a group common control message.
Solution Approach 2:
The patent creates a compressed representation (hash value) of the UE identifier that can be used instead of the full identifier in control messages. This copied representation uses fewer bits but retains the essential identifying information needed for addressing UEs efficiently in group common control channels.
2Quantity of substance
If multiple control messages are sent to address different subgroups of UEs, then each UE can be reached, but the number of messages increases, leading to increased latency and signaling overhead
Solution Approach 1:
The patent merges multiple control messages into a single group common control message by using a hash-based addressing scheme. The hash function allows multiple UEs to be addressed within one message by including their hash values in the control information, eliminating the need to send separate messages to each UE or subgroup.
Solution Approach 2:
The group common control message structure is designed to be universal, capable of addressing any combination of UEs in the group through the hash-based addressing mechanism. This multi-functional approach allows a single message format to serve multiple addressing purposes, reducing the total number of messages required.
3Measurement precision
If full UE identifiers are included in control messages, then precise addressing is achieved, but the message size increases, reducing transmission efficiency
Solution Approach 1:
The patent transforms the addressing parameter from full UE identifiers to hash values, changing the parameter representation to use fewer bits while maintaining addressing precision. The hash function ensures that the condensed representation still uniquely identifies each UE within the context of the group common control message.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. Some wireless communications systems may support improved assignment techniques for dynamic group common physical control channels. In some cases, a user equipment (UE) may receive a control message via a group common control channel. The control message may be monitored by a plurality of UEs, and the control message may include one or more control information segments for a set of UEs of the plurality. The control message may include one or more integer values associated with respective control information segments and a prime number. The integer values and the prime number may be configured to address each UE of the set of UEs. The UE may process the prime number, the integer values, and an integer value that corresponds to an identifier (ID) of the UE to determine applicability of the control message to the UE.