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Channel transmission method, device, network side device and terminal

A network-side equipment and channel transmission technology, which is applied in the field of communication, can solve problems such as feedback resource conflicts and inability to distinguish feedback information, and achieve the effect of avoiding conflicts

Active Publication Date: 2021-10-26
CHINA MOBILE COMM LTD RES INST +1
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  • Abstract
  • Description
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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, device, network side device and terminal
  • Channel transmission method, device, network side device and terminal
  • Channel transmission method, device, network side device 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

The present invention provides a channel transmission method, device, network side equipment and terminal, the method comprising: sending a PDCCH to a first terminal, the CRC of the DCI of the PDCCH is scrambled by the first RNTI of the first terminal, the The initialization value of the scrambling sequence generator of the PDSCH scheduled by PDCCH is determined by the second RNTI or the third parameter; wherein, the second RNTI or the third parameter is different from the first RNTI, and the second RNTI or the The third parameter is the shared parameter of the first terminal and at least one other terminal; in the embodiment of the present invention, different terminals independently detect their own PDCCHs, and different PDCCHs schedule the same PDSCH resources, so that multiple terminals can jointly While detecting the same physical resource, each terminal can also use the PUCCH resource indicated by its own PDCCH to perform feedback.

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 Patents(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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