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Method and device for transmitting downlink signal and/or downlink channel

A technology for discovering signals and signals, applied in wireless communication, electrical components and other directions, can solve problems such as affecting reception and affecting cell switching.

Active Publication Date: 2017-10-24
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If subframe 0, subframe 4, subframe 5, subframe 9; or subframe 0, subframe 1, subframe 5, subframe 6 can be configured as MBSFN subframes, or all MBSFN subframes in the radio frame There is no unicast part in any of them, so there will be problems such as how to send downlink signals or channels such as synchronization signals and measurement signals. This problem will not only affect the reception of UE MBMS services (that is, MBSFN services), but also affect UE cell handover
However, it is not provided in the related art that all subframes in some radio frames are configured as MBSFN subframes, or that all MBSFN subframes in some radio frames do not have a unicast part to send synchronization signals, measurement signals, unicast Solutions for downlink signals and / or downlink channels such as broadcasting services

Method used

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  • Method and device for transmitting downlink signal and/or downlink channel
  • Method and device for transmitting downlink signal and/or downlink channel
  • Method and device for transmitting downlink signal and/or downlink channel

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Embodiment Construction

[0091] In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with the accompanying drawings, which cannot be used to limit the protection scope of the present invention. It should be noted that, in the case of no conflict, the embodiments in the present application and various manners in the embodiments can be combined with each other.

[0092] see figure 1 , the embodiment of the present invention proposes a method for sending downlink signals and / or downlink channels, including:

[0093] Step 100, the base station in the pre-configured unicast subframe and / or the unicast part in the MBSFN subframe, and / or the MBSFN subframe containing the unicast part, and / or the MBSFN subframe containing the newly defined downlink signal Send downlink signals and / or downlink channels to user equipment UE.

[0094] In this step, the pre-configured unicast subframe, and / or the MBSFN subframe including the u...

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Abstract

The invention relates to a method and device for transmitting and receiving a downlink signal and / or a downlink channel. The method for transmitting a downlink signal and / or a downlink channel comprises the step that a base station sends a downlink signal or a downlink channel to user equipment (UE) on a pre-configured unicast subframe, and / or a unicast portion in a multimedia broadcast single frequency network (MBSFN) subframe, and / or an MBSFN subframe comprising a unicast portion, and / or an MBSFN subframe comprising a newly defined downlink signal, wherein the pre-configured unicast subframe, and / or the MBSFN subframe comprising a unicast portion and / or the MBSFN subframe comprising a newly defined downlink signal comprise / comprises any one or more subframes.

Description

technical field [0001] This article involves but is not limited to multicast or multicast single frequency network (MBSFN, Multicast-Broadcast Single Frequency Network) technology, especially a method and device for sending downlink signals and / or downlink channels. Background technique [0002] MBSFN requires user equipment (UE, User Equipment) to simultaneously receive identical waveforms sent from multiple cells, and the UE can regard multiple MBSFN cells as one large cell. In this way, the UE will not only suffer from inter-cell interference transmitted by adjacent cells, but also benefit from the superposition of signals from multiple MBSFN cells. In addition, setting a longer cyclic prefix (CP, Cyclic Prefix) can also solve the time difference problem of multipath propagation, thereby eliminating interference in the cell. [0003] The MBSFN includes two modes: a dedicated carrier (DC, Dedicated-Carrier) MBSFN mode and an MBSFN mode mixed with a unicast (Unicast) carri...

Claims

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Application Information

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IPC IPC(8): H04W72/00H04W72/04
CPCH04W72/30H04W72/23H04W72/00H04W72/04
Inventor 徐汉青赵亚军莫林梅
Owner ZTE CORP
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