Uplink Resource Request Identification via CDM Cyclic Shifts
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Solution Overview
Problem
In wireless communication systems, it is challenging for access network side devices to accurately identify which terminal side device is sending an uplink resource request when multiple devices share the same uplink channel resource, leading to difficulties in managing and allocating resources effectively for a large number of connections.
Innovation Solution
The method involves the terminal side device sending K uplink resource requests on K uplink channel resources within a transmission time unit, using specific cyclic shifts of a code division multiplexing (CDM) sequence to uniquely identify itself, allowing the access network side device to determine the terminal side device based on the cyclic shifts and resource allocation information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If multiple terminal side devices share the same uplink channel resource to send uplink resource requests, then the access network side device can support a larger quantity of connections, but it becomes difficult to identify which terminal side device sends the uplink resource request
Solution Approach 1:
The patent segments the identification process by dividing the uplink channel resources into multiple distinct resources and assigning each terminal side device a unique identifier. This segmentation allows the access network side device to distinguish between multiple terminal devices even when they share the same uplink channel, resolving the contradiction between supporting large quantities of connections and maintaining identification accuracy.
Solution Approach 2:
The patent applies local quality by assigning specific unique identifiers to individual terminal side devices within the shared uplink channel. Each terminal device has its own distinctive characteristics (unique identifier) that allows the access network side device to locally identify and distinguish between different devices, enabling accurate identification while supporting multiple connections.
2Measurement precision
If the access network side device allocates unique uplink channel resources to each terminal side device, then identification accuracy is improved, but the device complexity and resource management become more complex
Solution Approach 1:
The patent applies universality by using a standardized unique identifier mechanism that can be applied across all terminal side devices in the network. This universal identification approach allows the access network side device to manage multiple devices using the same identification principle, simplifying resource management while maintaining high identification accuracy.
Solution Approach 2:
The patent changes the identification parameter from shared generic identifiers to unique device-specific identifiers. This parameter change enables the access network side device to distinguish between terminal devices using a simple unique identifier field, improving identification accuracy without significantly increasing device complexity.
3Measurement precision
If the terminal side device sends multiple uplink resource requests on multiple uplink channel resources, then the access network side device can identify the terminal side device more accurately, but the use of uplink channel resources increases
Solution Approach 1:
The patent extracts the essential identification information (unique identifier) from the uplink resource requests and transmits it separately on the uplink channel. This extraction allows the terminal side device to send a single uplink resource request containing its unique identifier, enabling accurate identification without requiring multiple resource requests and reducing uplink channel resource usage.
Data Source
AI summary
Embodiments of this application provide a communication processing method for a resource request and a related device. In the communication processing method, a terminal side device sends K uplink resource requests on K (K is an integer greater than or equal to 2) uplink channel resources in a transmission time unit (for example, 1 millisecond) to request an uplink resource used for uplink transmission, where cyclic shifts of a code division multiplexing (CDM) sequence used to send the K uplink resource requests on the K uplink channel resources are specific to the terminal side device, or a value of K is specific to the terminal side device, or a combination of the cyclic shifts and K is specific to the terminal side device.