Channel transmission method and device, network side equipment and terminal

A network-side device and channel transmission technology, applied in the field of communication, can solve the problems of feedback resource conflict and inability to distinguish feedback information, and achieve the effect of avoiding conflict

Active Publication Date: 2021-02-02
CHINA MOBILE COMM LTD RES INST +1
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  • Abstract
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Problems solved by technology

[0010] The purpose of the present invention is to provide a channel transmission method, device, network side equipment and terminal to solve the problem that the feedback mechanism of the multicast mechanism in the related art easily leads to conflicts in the feedback resources used by the terminal, and the network side cannot distinguish the sender of the feedback information And other issues

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  • Channel transmission method and device, network side equipment and terminal
  • Channel transmission method and device, network side equipment and terminal
  • Channel transmission method and device, network side equipment and terminal

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Embodiment Construction

[0079] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0080] Such as figure 1 As shown, the embodiment of the present invention provides a channel transmission method applied to network side equipment, including:

[0081] Step 11, sending the physical downlink control channel PDCCH to the first terminal, the cyclic redundancy check CRC of the downlink control information DCI of the PDCCH is scrambled by the first wireless network temporary identifier RNTI of the first terminal, and the PDCCH scheduling The initialization value of the scrambling sequence generator of the physical downlink shared channel PDSCH is determined by the second RNTI or the third parameter;

[0082] Wherein, the second RNTI or the third parameter is different from the first RNTI, and the second RNTI or the third parameter is a share...

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Abstract

Provided are a channel transmission method and device, a network side device and a terminal, the method comprising: sending a PDCCH to a first terminal, the CRC of the DCI of the PDCCH being scrambledby a first RNTI of the first terminal, and the initialization value of a scrambling sequence generator of a PDSCH scheduled by the PDCCH being determined by a second RNTI or a third parameter; wherein the second RNTI or the third parameter is different from the first RNTI, and the second RNTI or the third parameter is a shared parameter of the first terminal and at least one other terminal; according to the embodiment of the invention, different terminals independently detect respective PDCCHs, and different PDCCHs schedule the same PDSCH resource, so that each terminal can use the PUCCH resource indicated by the respective PDCCH to feed back while the plurality of terminals detect the same physical resource together.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a channel transmission method, device, network side equipment and terminal. Background technique [0002] In 4G LTE (Long Term Evolution, long-term evolution), multicast / broadcast is realized by introducing MBMS (MultimediaBroadcast Multicast Service, multimedia broadcast multicast service) and SC-PTM (Single Cell Point to Multipoint, single cell point to multipoint) technology transmission. However, the current technologies MBMS and SC-PTM are rarely introduced in real commercial networks, mainly because of the complexity and mode of their network structure, and services are provided based on the traditional preset service mode. For example, for MBMS services, logical channels transmitted on the air interface mainly include MCCH (Multicast Control Channel, multicast control channel) and MTCH (Multicast Traffic Channel, multicast traffic channel), wherein, MCCH is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/12H04L1/00H04L1/18
CPCH04L1/0061H04L1/1812H04W72/23H04L5/0053H04L5/0051H04L5/0044H04L5/0055H04L1/1861H04L1/0072H04W72/20H04W72/0466H04W72/1273
Inventor 徐晓东杨拓
Owner CHINA MOBILE COMM LTD RES INST
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