Extended Uplink Resource Indication via Segmented AI and EAI Signals
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Solution Overview
Problem
The existing UMTS 3GPP system's 32 sets of Common E-DCH resources are insufficient to meet the uplink transmission requirements of a large number of user equipment, as the base station cannot indicate extended uplink transmission resources on the Acquisition Indicator Channel (AICH).
Innovation Solution
The method involves user equipment detecting auxiliary indication information and feedback information on the AICH, which includes acquisition indicator (AI) and extended acquisition indicator (EAI information, to determine a resource index for extended uplink transmission resources beyond the initial 32 sets, allowing for M uplink transmission resources where M is greater than 32.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the base station uses the AICH to indicate Common E-DCH resources to UEs, then the uplink transmission resource allocation is simple and efficient, but the maximum number of indicatable resources is limited to 32 sets
Solution Approach 1:
The resource indication is segmented into two parts: AI information (2 bits) indicating the first resource set, and EAI information (6 bits) indicating the second resource set. This segmentation allows the system to indicate more than 32 resources by dividing the indication into multiple components transmitted on the AICH
Solution Approach 2:
The patent extends the resource indication from a single dimension (32 resources) to a two-dimensional space by introducing EAI information. The UE determines the resource index by combining AI and EAI values, effectively expanding the indication capacity from 32 to M resources where M > 32
2Adaptability or versatility
If the system supports more UEs with extended resources, then the system capacity increases, but the AICH cannot indicate the extended resources beyond 32 sets
Solution Approach 1:
The resource indication information is segmented into AI information and EAI information, where AI indicates the first resource set and EAI indicates the second resource set. This segmentation enables the transmission of extended resource information that would otherwise exceed the AICH's indication capacity
Solution Approach 2:
The EAI information is nested within the resource indication framework, where the UE first receives AI information to determine the first resource set, then uses EAI information to determine the second resource set within or related to the first set, creating a nested indication structure
Data Source
AI summary
The present invention discloses a resource indication method, a base station, and user equipment. The user equipment includes: a sending unit, configured to send a random access preamble to a base station on a physical random access channel (PRACH), where the PRACH corresponds to at least one acquisition indicator channel (AICH); a detection unit, configured to detect auxiliary indication information and detect, on the at least one AICH, feedback information sent by the base station, where the feedback information includes acquisition indicator (AI) information and extended acquisition indicator (EAI) information; and a determining unit, configured to determine, according to the feedback information and the auxiliary indication information, a resource index of a target resource allocated by the base station in M uplink transmission resources, where M is an integer greater than 32.