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Channel condition detection method, network equipment and user equipment

A technology of user equipment and network equipment, which is applied in the field of communication, can solve problems such as data transmission rate reduction, and achieve the effect of ensuring communication quality and communication efficiency

Active Publication Date: 2018-09-14
维沃软件技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, currently in the high-frequency mobile communication TDD system, only part of the CSI can be obtained according to the channel reciprocity
If only part of the CSI obtained based on channel reciprocity is used for data transmission, the data transmission rate may be reduced

Method used

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  • Channel condition detection method, network equipment and user equipment
  • Channel condition detection method, network equipment and user equipment
  • Channel condition detection method, network equipment and user equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The embodiment of the present invention provides a channel state detection method, which is applied to network equipment, such as figure 1 Shown, including:

[0036] Step 101: Send configuration information to a user equipment, where the configuration information includes at least: information about M uplink transmission ports for the user equipment to send uplink reference signals, and information about N downlink reception ports for receiving downlink reference signals; the user The N downlink receiving ports of the device are at least partially different from the M uplink sending ports of the user equipment, and all the wireless ports of the user equipment are included in the N downlink receiving ports and the M uplink sending ports. In the set of ports; the wireless port is a port capable of uplink transmission and / or downlink reception; N and M are both integers greater than 0;

[0037] Step 102: Send downlink reference signals to N downlink reception ports of the user ...

example 2

[0079] Example 2 of this embodiment, such as image 3 Shown, including:

[0080] In the 5G high-frequency mobile communication TDD system, assuming that the uplink and downlink channels are reciprocal, the beam management process determines the best transmission and reception beam pairing between TRP1 and UE, namely TRP CSI-RS transmit antenna port 0- 7 has a one-to-one correspondence with UE receiving antenna ports 0-7, and UE SRS transmitting antenna ports 0-7 and TRP receiving antenna ports 0-7 respectively. Limited by the UE's transmission capability, the UE can only transmit SRS based on beamforming on 4 antenna ports at the same time. In order to quickly all channel CSI information, the network side configures SRS in one or more uplink symbols of a time slot to transmit via ports 0-4, and at the same time configures CSI-RS to port in one or more downlink symbols in the time slot. 4-7 send, as shown in the figure. The UE measures the CSI-RS and reports part of the CSI meas...

Embodiment 2

[0102] The embodiment of the present invention provides a channel state detection method, which is applied to user equipment, such as Figure 4 Shown, including:

[0103] Step 401: Receive configuration information sent by a network device, where the configuration information includes at least: M uplink transmission port information for user equipment to send uplink reference signals, and N downlink reception port information for receiving downlink reference signals; The N downlink receiving ports of the user equipment are at least partially different from the M uplink sending ports of the user equipment, and all the wireless ports of the user equipment are included in the N downlink receiving ports and the M uplink sending ports In a port set consisting of ports; the wireless port is a port with uplink sending and / or downlink receiving functions; N and M are both integers greater than 0;

[0104] Step 402: Based on the configuration information, receive the downlink reference sign...

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Abstract

The invention discloses a channel condition detection method, network equipment and user equipment. The method comprises the steps of sending configuration information to the user equipment; sending downlink reference signals to N downlink receiving ports of the user equipment, receiving uplink reference signals sent by the user equipment through M uplink sending ports, measuring the uplink reference signals to obtain channel state information of the uplink sending ports, and receiving the channel state information of the N downlink receiving ports sent by the user equipment; and determining downlink channel state information of the network equipment and / or determining uplink channel state information of the user equipment based on the channel state information of the uplink sending portsand the downlink receiving ports.

Description

Technical field [0001] The present invention relates to channel detection technology in the communication field, and in particular to a channel state detection method, network equipment and user equipment. Background technique [0002] In the future 5G (5Generation, fifth generation) mobile communication system, in order to achieve the downlink transmission rate of 20Gbps and the uplink transmission rate of 10Gbps, high-frequency communication and large-scale antenna technology will be introduced. High-frequency communication can provide wider system bandwidth, and the antenna size can be smaller, which is more conducive to the deployment of large-scale antennas in base stations and UEs (User Equipment, user equipment). In high-frequency communication, TRP (Transmission and Reception Point) and UE will use beamforming technology to send and receive. Fast and accurate CSI (Channel State Information, channel state information) measurement and feedback will be the focus of future 5...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/02H04W24/08
CPCH04W24/02H04W24/08
Inventor 孙晓东宋扬
Owner 维沃软件技术有限公司
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