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Semi-persistent scheduling (SPS) resource allocation method and base station

A semi-persistent scheduling and allocation method technology, applied in the field of communication, can solve problems such as lowering the quality of voice services, transmitting data packets, and delaying data packets

Active Publication Date: 2014-12-24
DATANG MOBILE COMM EQUIP CO LTD
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Problems solved by technology

The number of PRBs determined by the existing technology is used for data transmission. When the data packet arrival cycle is shorter than the SPS cycle, one SPS cycle cannot transmit all the received data packets, and the remaining data packets will be accumulated in the cache, resulting in The delay of data packets reduces the quality of voice services

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  • Semi-persistent scheduling (SPS) resource allocation method and base station
  • Semi-persistent scheduling (SPS) resource allocation method and base station
  • Semi-persistent scheduling (SPS) resource allocation method and base station

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Embodiment Construction

[0064] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the protection of the present invention. scope.

[0065] At present, the scheduling mode determined by LTE is divided into two types: SPS and dynamic scheduling. The existing SPS resource allocation method will cause larger data packet time delay and lower voice service quality. In order to solve the above-mentioned problems, the present invention implements The example provides a semi-persistent sched...

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Abstract

The invention provides a semi-persistent scheduling (SPS) resource allocation method and a base station. The SPS resource allocation method is that the base station receives data packets sent during voice communication of UE (user equipment); the base station determines MCS (modulation and coding scheme) level and determines packet information of the data packets according to the received data packets, particularly, the MCS level is determined by the base station according to CQI (channel quality indicator) of a channel which is used for the UE to send the data packets, and the packet information contains packet size; further, the base station determines data volume of each SPS according to the first formula that the data volume of each SPS=min{preset maximum data volume of the SPS, the packet size*[SPS cycle / data packet arrival cycle]}; furthermore, the base station determines quantity of PRB (physical resource blocks) according to the data volume of each SPS and the MCS level so as to allow the UE to transmit the data packets according to the quantity of the PRB. By the SPS allocation method and the base station, time delay of the data packets can be reduced while voice service quality can be improved.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method for allocating semi-persistent scheduling resources and a base station. Background technique [0002] In the communication system, LTE (Long Term Evolution, Long Term Evolution) adopts a shared resource allocation and scheduling system. Currently, LTE determines two scheduling modes: Semi-Persistent Scheduling (Semi-Persistent Scheduling, SPS for short) and dynamic scheduling. [0003] In the LTE system, all the voice services in the circuit domain are canceled, and the VOIP (Voice over Internet Protocol, VoIP) service in the data domain is adopted. In the VOIP service, the speech coder outputs packets according to a fixed cycle, such as figure 1 as shown, figure 1 A schematic diagram of VOIP service data transmission is shown. In the transient state (no call) stage, there is no voice packet to be scheduled, and other services can be dynamically schedul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04W72/12
CPCH04W72/04
Inventor 王桂英刘晓丹
Owner DATANG MOBILE COMM EQUIP CO LTD
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