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Information feedback method and device

A technology of information feedback and beam information, which is applied in the direction of location information-based services, wireless communication, electrical components, etc., can solve the problem that positioning technology cannot be well applied to channel state information acquisition, etc.

Active Publication Date: 2019-12-03
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] On the other hand, positioning is also an important technology in wireless communication. For example, it has been standardized in Long Term Evolution (LTE) and Long Term Evolution-Advanced (LTE-A). Standardization work will also be carried out in New Radio Access Technology (NR), but the current positioning technology cannot be well applied to the acquisition of channel state information

Method used

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  • Information feedback method and device
  • Information feedback method and device

Examples

Experimental program
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Embodiment 1

[0116] Figure 6 It is a schematic diagram of an exemplary implementation of the information feedback method provided in the embodiment of the present application. When the exemplary embodiment is applied in a system including at least one terminal (or user) and a base station, both the base station and the terminal in this system may have more than one port or antenna. Such as Figure 6 As shown, this exemplary embodiment includes the following processing:

[0117] S101. The terminal acquires K pieces of location information after a reference time; wherein, K is an integer greater than or equal to 1.

[0118] Wherein, the K pieces of location information after the reference time may refer to K pieces of location information corresponding to K moments in the future after the current moment.

[0119] Wherein, the location information may include but not limited to one of the following: Reference Signal Time Difference (RSTD), relative time of arrival (Relative Time Of Arriva...

Embodiment 2

[0139] Figure 7 It is a schematic diagram of another exemplary implementation of the information feedback method provided in the embodiment of the present application. This exemplary embodiment is applied in a system including at least one terminal (or user) and a base station, and both the base station and the terminal in this system may have more than one port or antenna. Such as Figure 7 As shown, this exemplary embodiment includes the following processing:

[0140] S201. The base station acquires K pieces of location information after a reference time; wherein, K is a positive integer.

[0141] Wherein, the base station may obtain the K pieces of location information by receiving the K pieces of location information fed back by the terminal; or, may also obtain the K pieces of location information by itself through uplink channel information.

[0142] Wherein, the K pieces of location information after the reference time may refer to K pieces of location information c...

Embodiment 3

[0163] This embodiment is applied in a system including at least one terminal (or user) and a base station, and both the base station and the terminal in this system may have more than one port or antenna. In this embodiment, the terminal can improve the performance of the system through the following methods:

[0164] S301. The terminal acquires N beam information after a reference time.

[0165] Wherein, the N beam information after the reference time may refer to the N beam information corresponding to K moments in the future after the current moment; where K and N are both positive integers, and N is greater than or equal to K.

[0166] Exemplarily, the terminal may further feed back the RSRP, SINR, differential RSRP, and differential SINR corresponding to the N beam information to the base station.

[0167] Exemplarily, the N beam information is adjacent beams.

[0168] Exemplarily, the terminal may determine N beam information through downlink channel information.

[...

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Abstract

The information feedback method comprises the following steps: acquiring K pieces of position information after reference time, and feeding back the K pieces of position information, wherein K is a positive integer. In addition, the embodiment of the invention further provides an information receiving method and an information obtaining method. The embodiment of the invention can fully utilize thepositioning technology to improve the performance of the wireless communication system.

Description

technical field [0001] The embodiments of the present application relate to but are not limited to the technical field of wireless communication, and particularly refer to an information feedback method and device. Background technique [0002] The multi-antenna technology is an important means to improve the performance of the wireless communication system, and in order to make good use of the multi-antenna technology, it is necessary to obtain accurate channel state information (Channel State Information, CSI). Especially in high-frequency technology, as the carrier frequency increases, the path loss will also increase. In order to ensure coverage, multi-element antennas are generally used to obtain beamforming gain, so as to use beamforming gain to compensate for the path loss. The impact of loss. In addition, in order to obtain beam gain, the user needs to select the best sending and / or receiving beam matching the user channel according to the channel. [0003] On the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/02H04W24/10
CPCH04W4/02H04W24/10H04B7/0695H04W4/029H04B7/0626
Inventor 肖华华李儒岳蒋创新鲁照华
Owner ZTE CORP
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