Narrowband Resource Block Association for Link-Budget Imbalance
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Solution Overview
Problem
Conventional telecommunication systems face a link-budget imbalance between the uplink and downlink, leading to challenges in association between communication devices, particularly in scenarios where unscheduled uplink packet transmissions occur.
Innovation Solution
The solution involves leveraging robust modulation and encoding schemes, such as on-off keying (OOK), amplitude shift keying (ASK), or repetition coding, to enable communication devices to request and schedule narrowband resource blocks, thereby addressing the link-budget imbalance and facilitating association with access points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional wideband resource blocks are used for uplink transmission, then the association process can proceed, but the link-budget imbalance causes transmission failures and increased power consumption
Solution Approach 1:
The patent changes the spectral width parameter of the resource block from wideband to narrowband. By allocating a narrowband resource block with spectral width smaller than the operating channel width, the system improves uplink transmission reliability while reducing the power consumption required for association requests and unscheduled packet transmissions.
2Reliability
If narrowband resource blocks are allocated, then power consumption is reduced and transmission reliability improves, but the device complexity increases due to scheduling requirements
Solution Approach 1:
The patent applies preliminary action by allocating narrowband resource blocks in advance during the association process. The access point provides narrowband resource block allocations to stations before unscheduled uplink packet transmissions occur, ensuring that stations have pre-configured resources for reliable low-power transmission without requiring complex real-time scheduling decisions.
3Reliability
If the spectral width is reduced to narrowband, then the link-budget imbalance is addressed, but the data transmission capacity is limited
Solution Approach 1:
The patent segments the communication process into different phases with different resource requirements. Narrowband resource blocks are used specifically for association requests and unscheduled packet transmissions where reliability is critical, while wideband resources can be utilized for scheduled high-throughput data transmissions, thus achieving both reliability and productivity goals.
Data Source
AI summary
Embodiments of the disclosure relate to operational association between communication devices in the presence of a link-budget imbalance between an upstream link and a downstream link at one of the communication devices. The association relies on a request for a narrowband resource block sent from the communication device having the link-budget imbalance to a remote communication device that can schedule and/or allocate the narrowband resource block. The request can be modulated according to an on-off keying modulation scheme or can be encoded according to a multi-repetition encoding scheme. In response to the narrowband resource block being allocated, an association request can be sent to the remote communication device in the narrowband resource block.