Resource release method, base station and ue of td-lte trunking group call
A resource release and clustering technology, applied in the field of network communication, can solve the problems of increasing PDCCH overhead, UE power waste, public search space PDCCH resource shortage, etc., and achieve the effect of reducing PDCCH overhead
Inactive Publication Date: 2019-09-06
POTEVIO INFORMATION TECH CO LTD
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Problems solved by technology
[0013] Since there is no feedback mechanism for trunking group calls, the base station cannot determine whether the semi-persistent scheduling resources for trunking group calls have been successfully released.
If the system fails to release its resources after the UE semi-persistently schedules the cluster group call service or fails to release, the UE will continue to receive data at the configured resource location, which will cause a waste of UE power
If the base station sends the PDCCH released by semi-persistent scheduling multiple times, the PDCCH overhead will be greatly increased, and it is impossible to ensure that all UEs in the cluster group are successfully released.
In addition, the public search space already has the overhead of public information (broadcast, paging, random access, etc.), due to the regulations on the PDCCH search space used by the PDCCH scrambled by the G-RNTI / SPS G-RNTI of the trunking group call , making the PDCCH resources in the public search space more tense, which may cause group calls that only use the public search space to be scheduled in time because they cannot send DCI
If there is a sudden group call business, the phenomenon will be more serious
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[0060] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0061] Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the word "comprising" used in the description of the present invention refers to the presence of said features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, Integers, steps, operations, elements, components, and / or groups thereof.
[0062] Those sk...
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The invention provides a TD-LTE (Time Division Long Term Evolution) cluster group calling resource release method, a base station and UE (User Equipment). The TD-LTE cluster group calling resource release method comprises the steps of judging a release reason of semi-persistent scheduling resources of cluster group calling; sending a semi-persistent scheduling resource release message carried on a PDCCH (Physical Downlink Control Channel) to the UE when the release reason is that a voice service of cluster group calling is switched from an activation period to a silent period, and sending a cluster group calling release message to the UE when the release reason is cluster group calling release. According to the invention, different resource release messages are adopted according to different release reasons of the cluster group calling semi-persistent scheduling resources, and thus the PDCCH overhead of semi-static scheduling cluster group calling is reduced.
Description
technical field [0001] The present invention relates to the technical field of network communication, in particular to a TD-LTE cluster group call resource release method, a base station and a UE. Background technique [0002] With the rapid development of social economy and changes in the needs of industry customers, Time Division Long Term Evolution (TD-LTE, Time Division Long Term Evolution) broadband trunking with large bandwidth, high speed, all-IP, efficient command and control and real-time response capabilities will lead the way Cluster communication has entered a new era. The TD-LTE broadband trunking communication system can not only support various multimedia services of the TD-LTE mobile communication system itself, but also provide basic trunking call services and trunking multimedia services, such as voice group calls, voice single calls, visual group calls, Video call, broadcast call, real-time video transmission, etc. [0003] The private network broadband ...
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IPC IPC(8): H04W4/06H04W76/38
Inventor 周欣吕征南
Owner POTEVIO INFORMATION TECH CO LTD