A scheduling method for sps service

Abstract

The invention discloses an SPS service scheduling method. The method comprises the following steps: calculating scheduling time of an uplink SPS user already activated in a current TTI, and pre-estimating resource distribution time of downlink scheduling processing; before activation scheduling is carried out on any one downlink SPS user, distributing reserved time for the scheduling of the uplink SPS user already activated in the current TTI and the resource distribution of the downlink scheduling processing, and according to periodical common scheduling and random access scheduling conditions of the current TTI, determining whether to carry out activation on the any one downlink SPS user. By using the SPS service scheduling method, the scheduling of SPS service can be balanced, and the scheduling performance is improved.

Description

technical field [0001] The present application relates to scheduling technology in communication systems, in particular to a scheduling method for SPS services. Background technique [0002] In LTE, both uplink and downlink grants are sent to terminals through downlink control channels; whether it is TDD or FDD, uplink scheduling must be completed in the subframe of downlink scheduling, and the terminal is notified in the downlink subframe. Because the uplink and downlink scheduling needs to be completed simultaneously within one TTI, the allocation of uplink and downlink scheduling time has to be considered. [0003] In the existing public network scheduling method, the uplink scheduling is performed after the downlink scheduling is completed, and each scheduling is required to be completed within 1ms (once the scheduling time exceeds the limit, the scheduling made by this TTI will not be performed or directly discarded), and the 1ms When the scheduling time is up, schedul...

AI Technical Summary

Problems solved by technology

[0006] In the private network communication business, there are many voice services, and the demand for service air interface resources is relatively small; at this time, the number of users that can be scheduled by the system resources is relatively large, but the scheduling time is relatively insufficient, and the system specification will be limited by the scheduling time

The scheduling time allocation of uplink and downlink users is not balanced enough, which will also cause users to be released directly, affecting user experience

Therefore, in the actual test, the SPS users of the downlink users occupy the scheduling time of the uplink SPS, and the uplink SPS of the users cannot be scheduled, and a large number of users drop calls, resulting in the voice quality not being guaranteed.

[0007] At the same time, unlike public network services, there are more uplink services in private network services; therefore, the shortage of scheduling methods in public networks is very obvious

At the same time, there are also uplink-only lecturers and downlink-only groups in the private network, which further increases the complexity of implementation and cannot directly apply the existing scheduling methods in the public network