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Method and device for interference processing and signal notification among nonorthogonal user equipment

A technology of user equipment information and user equipment, which is applied in multiple uses of transmission paths, shaping networks in transmitters/receivers, digital transmission systems, etc., can solve problems such as reducing power, improve system capacity and performance, and improve The effect of receiving performance

Inactive Publication Date: 2016-07-06
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because in LTE, powerboosting (power enhancement) for CRS is supported, and in order to ensure the transmission power consistency of each Orthogonal Frequency Division Multiplexing (OFDM, Orthogonal Frequency Division Multiplexing) symbol, on the OFDM symbol that sends CRS, CRS performs powerboosting at the same time , PDSCH needs to reduce a certain power, which leads to differences in EPRE corresponding to PDSCH on OFDM symbols that send CRS and on OFDM symbols that do not send CRS

Method used

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  • Method and device for interference processing and signal notification among nonorthogonal user equipment
  • Method and device for interference processing and signal notification among nonorthogonal user equipment
  • Method and device for interference processing and signal notification among nonorthogonal user equipment

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Embodiment 1

[0032] Embodiment 1 of the present invention provides a non-orthogonal user equipment (UserEquipment, UE for short) interference processing and signaling notification method, such as figure 1 As shown, the method mainly includes:

[0033] Step 101, the network-side device notifies the target user equipment of at least one of the following information to perform interference cancellation processing: paired user information of the target user equipment, configuration parameter information related to data transmission of the paired user equipment, data transmission related information of the paired user equipment Demodulation pilot related configuration parameter information;

[0034] The user equipment can also be called a terminal, and the network side equipment can be not only a base station, but also other equipment used to control the network system opposite to the user equipment or the terminal.

[0035] Wherein, the data transmission of the target user equipment and the d...

Embodiment 2

[0135] The network side configures N sets of power allocation ratios for the target user equipment through high-level semi-static signaling, where each set of power allocation ratios indicates the power ratio relationship between the target user equipment and its paired user equipment; A specific target user equipment indicates a set of power allocation ratios, so as to assist the target user equipment to perform current interference cancellation processing.

[0136] For example, assuming that the target user equipment is only allowed to have one paired user equipment, the four power allocation ratios are defined as 1 / 1, 1 / 2, 1 / 4, and >1 through high-level signaling, so the network side can dynamically control through 2 bits The signaling notifies the specific target user equipment of its power allocation ratio with the paired user equipment, as shown in Table 2 below:

[0137]

[0138] Table 2

[0139] In addition to notifying the target user equipment of the above power ...

Embodiment 3

[0143] The network side sends at least one of the following information to the target user equipment: paired user equipment information, data transmission-related configuration parameter information of the paired user equipment, demodulation pilot-related configuration parameter information related to paired user equipment data transmission, for use in The target user equipment performs interference cancellation processing. Wherein, the demodulation pilot related to the data transmission of the target user equipment is the same as the demodulation pilot related to the data transmission of its paired user equipment.

[0144]The target user equipment judges the ratio relationship between the transmission power of the data transmission of the paired user equipment and the transmission power of the demodulation pilot related to its data transmission according to the above received information. If the target user equipment discovers or determines that the transmit power of the data...

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Abstract

The invention discloses a method and device for interference processing and signal notification among nonorthogonal user equipment, and the signal notification method comprises the steps: notifying target user equipment of at least one piece of the following information for interference removing: paired user equipment information of the target user equipment, data transmission related configuration parameter information of the paired user equipment, and demodulation pilot frequency related configuration parameter information related with the data transmission of the paired user equipment. The same time frequency resources or partly identical time frequency resources and different transmission powers are configured for the data transmission of the target user equipment and the data transmission of the paired user equipment. Moreover, nonorthogonal demodulation pilot frequency resources are configured for the demodulation pilot frequency related with the data transmission of the paired user equipment and the demodulation pilot frequency related with the data transmission of the target user equipment.

Description

technical field [0001] The present invention relates to non-orthogonal multiple access (NOMA, Non-orthogonal Multiple Access) technology in the communication field, and in particular to a method and device for interference processing and signaling notification between non-orthogonal user equipments. Background technique [0002] Although the Multi-User Multiple Input Multiple Output (MU-MIMO, MultipleUserMultipleInputMultipleOutput) technology has been defined in the Long Term Evolution (LTE, LongTermEvolution) version 8 / 9 / 10, but because the existing MU pairing definition is based on pairing MU users as much as possible It is carried out on the principle of orthogonality (that is, the interference is as small as possible), which not only limits the number of users that can be paired with MU at the same time, but also the residual mutual interference between MU users also limits the number of MU-MIMO compared to single user. Input Multiple Output (SU-MIMO, SingleUserMultiple...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L25/03H04L25/02H04L5/00
CPCH04L25/03
Inventor 弓宇宏郭森宝谢赛锦陈艺戬
Owner ZTE CORP
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