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Transmission method and device for multicast or multicast service

A multicast service and transmission method technology, applied in the field of multicast or multicast service transmission methods and devices, can solve the problems of waste of wireless resources, inability to know that a user terminal receives or needs to receive multicast or multicast services, etc., to achieve The effect of reducing waste

Active Publication Date: 2020-04-21
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] With the above solution, the base station cannot know whether there are user terminals receiving or need to receive multicast or multicast services, so they need to continuously send multicast or multicast services, which may cause waste of wireless resources

Method used

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  • Transmission method and device for multicast or multicast service
  • Transmission method and device for multicast or multicast service
  • Transmission method and device for multicast or multicast service

Examples

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Embodiment Construction

[0028] As described in the background technology, in the prior art, whether it is an MBMS service or a SC-PTM service, in a multicast or multicast service scenario, the base station cannot know whether there is a user terminal receiving the multicast or multicast service or to interested. Therefore, when no user terminal is receiving or interested in the multicast or multicast service, the base station will continue to send the multicast or multicast service, which will result in a waste of radio resources.

[0029] In the embodiment of the present invention, when sending a multicast or multicast service, the base station also sends configuration information indicating an uplink feedback channel, and the user terminal receiving the multicast or multicast service may be sensitive to the multicast or multicast service. The interested user terminal sends feedback information on the uplink feedback channel according to the configuration information, and the base station can determ...

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PUM

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Abstract

The invention discloses a transmission method and device for a multicast service, which are applied to a base station for transmitting the multicast service. The method comprises the following steps: transmitting configuration information indicating an uplink feedback channel; and detecting a signal on the uplink feedback channel to judge whether a target user terminal exists or not, wherein the target user terminal is a user terminal which is receiving the multicast service or a user terminal which is interested in the multicast service, and the target user terminal transmits feedback information on the uplink feedback channel according to the configuration information. Through adoption of the transmission method and device, the base station can get whether the user terminal is receiving the multicast service or is interested in the multicast service or not at present in time.

Description

technical field [0001] The present invention relates to multicast or groupcast technology, in particular to a method and device for transmitting multicast or multicast services. Background technique [0002] In addition to the traditional data transmission mode, the Long Term Evolution (LTE, Long Term Evolution) system also introduces multicast or groupcast mode. At this time, the base station can transmit data to multiple user equipment (UE) in the cell at the same time. Such as the Multimedia Broadcast Multicast Service (MBMS) service, usually the MBMS service area includes multiple cells, and radio resources for point-to-multipoint transmission are configured in the multiple cells, so that all user terminals subscribed to the MBMS service Can receive the same transmission signal at the same time. The wireless access network does not need to track the movement of the user terminal, and the user can receive MBMS services without notifying the network. [0003] In Release ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/06H04W52/02H04W72/04
CPCH04W4/06H04W52/0212H04W72/04Y02D30/70
Inventor 邓云郝禺台顾祥新
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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