A method and terminal for determining channel state information

A channel state information and terminal technology, applied in the directions of transmission path sub-channel allocation, wireless communication, signaling allocation, etc., can solve the problems of high terminal complexity and high cost, and achieve the effect of reasonable complexity and reasonable cost

Active Publication Date: 2018-08-21
ZTE CORP
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0049] The technical problem to be solved by the present invention is to provide a terminal and method for determining channel state information, to overcome the problem of excessive complexity of the terminal, and to solve the problem of high cost when the existing system uses transmission mode 10 and TDD duplex mode

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A method and terminal for determining channel state information
  • A method and terminal for determining channel state information
  • A method and terminal for determining channel state information

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0113] If P=3 or 4, when y=2, 3 and 4, X takes the value of y;

[0114] The number of CSIs to be reported is set to Y, and the number of aperiodic CSIs to be updated is Z=min(X, Y), where min represents the minimum of two values. The terminal updates Z aperiodic CSI.

[0115] When y is equal to 1, there is no restriction on X.

[0116] Among them, y may currently take values ​​of 1, 2, 3, and 4; P may take values ​​of 1, 3, and 4.

[0117]In short, the calculation method of the CSI here fully considers the capability of the UE and the number of configured CSI Processes to determine the number of aperiodic CSIs that need to be updated. Reasonable restrictions are made on the amount of data CSI calculations to ensure that the terminal has a reasonable complexity and a reasonable cost, and is especially suitable for time-division duplex systems.

Embodiment 2

[0119] If P=3, y=2 or 3, then the value of X is P;

[0120] If P=4, y=2 or 3, then the value of X is min(P, 3); otherwise, when y=4, the value of X is P;

[0121] The number of CSIs to be reported is set to Y, and the number of aperiodic CSIs to be updated is Z=min(X, Y), where min represents the minimum of two values. The terminal updates Z aperiodic CSI.

[0122] When y is equal to 1, there is no restriction on X.

[0123] Among them, y may currently take values ​​of 1, 2, 3, and 4; P may take values ​​of 1, 3, and 4.

[0124] terminal embodiment

[0125] This embodiment provides a terminal for determining channel state information, such as figure 2 shown, including:

[0126] a receiving unit, configured to receive an aperiodic CSI request;

[0127] A determining unit, configured to determine the parameter X according to the terminal's ability to process a channel state information process CSI Process and / or the number y of currently configured CSI Processes;

[0128...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The present invention provides a method for determining channel state information, including: a terminal receives an aperiodic channel state information CSI request, and according to the terminal's ability to process channel state information process CSI Process and / or the number of CSI Processes currently configured y to determine the parameter X, and update up to X aperiodic CSI according to the parameter X; wherein, the parameter X is: at the same time, the terminal needs to update the internal CSI Process or The total number of reports. The invention also provides a terminal for determining channel state information. The present invention makes reasonable restrictions on the amount of CSI computation, ensures that the terminal has a reasonable complexity, and ensures that the terminal has a reasonable cost.

Description

technical field [0001] The invention relates to the field of mobile wireless communication, in particular to a terminal and a method for determining channel state information for a specific transmission mode in a wireless communication system. Background technique [0002] In wireless communication technology, when the base station side (e.g., evolved Node B, eNB) uses multiple antennas to transmit data, it can adopt spatial multiplexing to improve the data transmission rate, that is, the same time-frequency resources are used at the transmitting end to Different antenna positions transmit different data, and a receiving end (such as user equipment, User Equipment, UE for short) also uses multiple antennas to receive data. In the case of a single user, the resources of all antennas are allocated to the same user, and this user exclusively occupies the physical resources allocated to the base station side within a transmission interval. This transmission method is called Sing...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/06
CPCH04L1/0026H04L1/0027H04B7/0452H04L5/0055H04L5/0057H04W72/23
Inventor 李儒岳徐俊郭森宝张峻峰
Owner ZTE CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap