Uplink Data Scheduling via Combined Buffer Status and Resource Grant
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Solution Overview
Problem
In LTE networks, the existing method for scheduling uplink data resources is inefficient due to the need for the base station to send two separate uplink grants, leading to timeliness and accuracy issues in resource allocation.
Innovation Solution
The method involves sending configuration information to user equipment to indicate attributes of buffered uplink data in scheduling requests, such as data amount, priority level, or logical channel type, allowing the base station to allocate resources more accurately and timely based on the provided information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the base station sends two separate uplink grants to allocate resources for BSR and uplink data, then the resource allocation is detailed and precise, but the scheduling timeliness deteriorates and the process complexity increases
Solution Approach 1:
The patent combines the BSR transmission resources and uplink data transmission resources into a single uplink grant. The base station allocates uplink resources that can simultaneously carry both the buffer status report and the uplink data, eliminating the need for separate resource allocation messages and reducing scheduling delay
Solution Approach 2:
The patent enables the uplink grant to preliminarily allocate resources that are sufficient for both BSR and data transmission from the outset. By configuring the uplink grant to accommodate potential BSR transmissions, the system avoids the need for additional scheduling rounds, thereby improving timeliness
2Measurement precision
If the base station sends two separate uplink grants, then the resource allocation is comprehensive, but the scheduling process complexity increases
Solution Approach 1:
The patent merges the functionality of multiple uplink grants into a single unified grant. The base station sends one uplink grant that encompasses both BSR transmission resources and uplink data transmission resources, simplifying the scheduling process while maintaining comprehensive resource allocation
Solution Approach 2:
The uplink grant is designed with multi-functionality, serving both to allocate resources for BSR transmission and for uplink data transmission. This universal resource allocation mechanism reduces the number of scheduling messages and simplifies the overall scheduling process
3Ease of operation
If the user equipment sends scheduling request to obtain uplink resources first, then the uplink data can be transmitted, but the transmission delay increases due to the two-step process
Solution Approach 1:
The system performs preliminary action by configuring the uplink grant to include resources sufficient for both BSR and data transmission before the actual data transmission begins. This advance resource preparation eliminates the need for additional scheduling requests and reduces transmission delay
Solution Approach 2:
The patent combines the BSR transmission and uplink data transmission into a single resource allocation event. By merging these two functions into one uplink grant, the system eliminates the sequential two-step process and reduces the overall transmission delay
Data Source
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AI summary
The present invention discloses a method, a system and an apparatus for scheduling uplink data, and is applied to the field of communication technologies. In the embodiments of the present invention, a base station notifies configuration information to a user equipment, where the configuration information is used to configure the mode in which a scheduling request sent by the user equipment indicates the attribute of buffered uplink data; when receiving the scheduling request sent by the user equipment according to the configuration information, the base station allocates an uplink resource to the user equipment according to indication information carried in the scheduling request. In this way, when the user equipment sends the scheduling request, the scheduling request may indicate that there is uplink data that needs to be sent, and may also indicate specific attribute information of the uplink data, so that the base station can allocate uplink resources, that is, perform uplink data scheduling timely and accurately according to the information on the uplink data that needs to be sent by the user equipment, and therefore the base station can schedule the uplink data of the user equipment accurately in time and the performance of scheduling is improved.