PUCCH Resource Allocation for MIMO Wireless Systems
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Solution Overview
Problem
Current wireless communication systems face challenges in effectively allocating multiple resources to a single user equipment (UE) due to limited resources, particularly in MIMO and multi-carrier systems, which affects information transmission efficiency.
Innovation Solution
A method and apparatus that acquire a first and second resource index, generating information sequences based on these indices and transmitting them through multiple antennas, allowing for effective information transmission by utilizing the acquired indices to allocate and manage resources efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple resources are allocated to a single user equipment in MIMO and multi-carrier systems, then information transmission efficiency is improved, but resource allocation complexity increases
Solution Approach 1:
The patent segments the resource allocation process by introducing separate first and second resource indices that independently identify resources for different antennas. This segmentation allows the system to manage multiple resources without creating a combinatorial explosion of allocation complexity, as each antenna can be configured independently using its own resource index rather than requiring complex joint allocation across all antennas.
Solution Approach 2:
The patent adds a new dimension to resource allocation by introducing antenna-specific resource indices. Instead of allocating resources in a single dimension, the system now operates in multiple dimensions (different resource indices for different antennas), which enables more efficient resource utilization while keeping the allocation mechanism manageable through dimensional separation.
2Quantity of substance
If multiple antennas are used for information transmission, then user equipment multiplexing capacity is increased, but system configuration complexity increases
Solution Approach 1:
The patent creates a universal resource indexing mechanism that can be applied across multiple antennas and carrier frequencies. The same framework of using resource indices works universally for different antenna configurations and carrier aggregations, allowing the system to increase multiplexing capacity without proportionally increasing configuration complexity, as the same principles apply regardless of the number of antennas or carriers.
Data Source
AI summary
According to one embodiment, a method for transmitting, by a user equipment (UE), information in a wireless communication system includes: determining a first information sequence based on a first cyclically shifted base sequence and a first orthogonal sequence by using a first physical uplink control channel (PUCCH) resource for a first antenna, wherein the first PUCCH resource is obtained based on a channel control element (CCE) index related to a physical downlink control channel (PDCCH) and a parameter configured by a higher layer; determining a second information sequence based on a second cyclically shifted base sequence and a second orthogonal sequence by using a second PUCCH resource for a second antenna, wherein the second PUCCH resource is obtained by adding an offset to the first PUCCH resource; transmitting the first information sequence via the first antenna; and transmitting the second information sequence via the second antenna.