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A method and device for uplink data transmission control and transmission

A technology for data and control channels, applied in the field of uplink data transmission control, transmission methods and devices, can solve the problems of system performance degradation, interference, complicated interference situations and interference situations, and achieve the effects of reducing interference and improving system performance.

Active Publication Date: 2020-02-04
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] From the perspective of the LTE downlink channel and the LTE uplink channel, when the data transmitted on the uplink channel and the downlink channel are transmitted at the same time and at the same frequency, that is, when the data transmitted on the uplink channel and the downlink channel are transmitted in the same subframe, the user equipment will simultaneously After receiving the subframe in which the base station transmits downlink data and the subframe in which other user equipment transmits uplink data, the uplink physical channel in the subframe in which the uplink data is transmitted will cause severe interference to the downlink control channel in the subframe in which the downlink data is transmitted, resulting in System performance drops drastically
[0008] To sum up, the interference situation of the full-duplex wireless communication system is more complicated than that of the existing FDD system or TDD system. The uplink data of the user equipment and the downlink data of the base station are sent at the same time and at the same frequency, and the user equipment will receive them at the same time. When the base station transmits downlink data in the subframe and other user equipment transmits uplink data in the subframe, the uplink physical channel in the subframe for transmitting uplink data will seriously interfere with the downlink control channel in the subframe for transmitting downlink data, causing system performance drops drastically

Method used

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  • A method and device for uplink data transmission control and transmission
  • A method and device for uplink data transmission control and transmission
  • A method and device for uplink data transmission control and transmission

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Embodiment approach 1

[0065] Embodiment 1: The uplink physical channel time-division multiplexed with the downlink physical channel of the same-frequency carrier in the same full-duplex subframe is a physical uplink shared channel, and the physical uplink control channel retains the original format to reduce changes to existing standards.

[0066] In a possible implementation, in the method provided by the embodiment of the present invention, when the uplink physical channel time-division multiplexed with the downlink physical channel of the same frequency carrier in the same full-duplex subframe is a physical uplink shared channel, it is determined that the user The configuration information of the full-duplex uplink subframe of the device, specifically including: determining that the first N OFDM symbols in the physical uplink shared channel in the full-duplex uplink subframe in which the user equipment transmits uplink data do not bear transmission The first configuration information of the data,...

Embodiment approach 2

[0072] Embodiment 2: The uplink physical channel time-division multiplexed with the downlink physical channel of the same-frequency carrier in the same full-duplex subframe includes at least the physical uplink shared channel and the physical uplink control channel, so as to minimize the impact of the uplink subframe on the downlink subframe. The impact of the downlink control channel improves system performance.

[0073] In a possible implementation, in the method provided by the embodiment of the present invention, when the uplink physical channel time-division multiplexed with the downlink physical channel of the same-frequency carrier in the same full-duplex subframe includes at least a physical uplink shared channel and a physical uplink When controlling the channel, determine the configuration information of the full-duplex uplink subframe of the user equipment, specifically including: determining that the first N OFDM symbols in the physical uplink shared channel in the ...

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Abstract

The present invention discloses an uplink data transmission control method and device and an uplink data transmission method and device which are used for reducing the interference of an uplink physical channel in a full duplex uplink subframe to a downlink physical channel in a full duplex downlink subframe and improving the performance of a system when a user equipment receives the full duplex uplink subframe used for other user equipment to send the uplink data and the same-frequency full duplex downlink subframe used for sending the downlink data simultaneously. The uplink data transmission control method comprises the steps of determining the configuration information of the full duplex uplink subframe of the user equipment, wherein the configuration information comprises the information of supporting the time division multiplexing of the uplink physical channel and the downlink physical channel of a same-frequency carrier in the same full duplex subframe; sending the configuration information of the full duplex uplink subframe to the user equipment to indicate the user equipment to transmit the uplink data according to the configuration information of the full duplex uplink subframe, wherein the uplink physical channel in the full duplex uplink subframe by which the user equipment transmits the uplink data is in time division multiplexing with the downlink physical channel of the same-frequency carrier.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to an uplink data transmission control and transmission method and device. Background technique [0002] Full-duplex (Full-duplex) technology is a new technology that has attracted widespread attention in recent years. In the case of applying full-duplex technology, full-duplex wireless communication systems and frequency division duplex (Frequency Division Duplex, FDD) or Compared with the Time Division Duplex (TDD) system, the interference is more serious. For example, the downlink data sent by the base station of this cell will not only be interfered by the downlink data sent by the base station of the adjacent cell, but also be interfered by the downlink data sent by the base station of the cell and the adjacent cell. The interference of the uplink data sent by the user equipment in the cell, specifically: [0003] figure 1 shows the interference situation of do...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00
Inventor 肖国军
Owner DATANG MOBILE COMM EQUIP CO LTD