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mimo communication method, terminal and base station equipment

A communication method and terminal technology, applied in the field of MIMO communication, can solve the problems of communication failure, inability to achieve signal separation, interference, etc., and achieve the effect of solving pilot pollution

Active Publication Date: 2020-08-04
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the terminal is accessed by multiple base stations and interference occurs
[0020] Furthermore, in massive MIMO, when multiple terminals are in close proximity to each other, it is difficult to perform separation between channels for the terminals
In this case, even if channel correlation is performed, separation between signals cannot be achieved and communication fails

Method used

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  • mimo communication method, terminal and base station equipment
  • mimo communication method, terminal and base station equipment
  • mimo communication method, terminal and base station equipment

Examples

Experimental program
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Embodiment Construction

[0036] Hereinafter, a first embodiment of the present disclosure will be described in detail.

[0037] figure 1 is a diagram showing a slot configuration of a signal flow transmitted from / received by a base station in massive MIMO according to an embodiment of the present disclosure.

[0038] In this embodiment, a single base station covers Nv mobile terminals (UE#1 to UE#Nv). In the following description, a mobile terminal is simply referred to as a terminal. The distance between each terminal and the base station is measured in advance, and the transmission time at the terminal is adjusted according to the distance, so that the signal transmitted from the terminal can be synchronized at the receiving point. This approach is used in Long Term Evolution (LTE). In the signal flow, the uplink (UL) and downlink (DL) are separated in time by time division duplexing (TDD). UL uses the same frequency and DL uses the same frequency.

[0039] The header is set such that it prece...

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Abstract

The invention relates to an MIMO communication method, a terminal, and a base station apparatus. The MIMO communication method of performing MIMO communication between a base station having a plurality of antennas and each of a plurality of terminals covered by the base station using uplink data slots and downlink data slots that are alternately placed on a time axis. The method includes, in the base station, despreading a received signal that is transmitted from each of the plurality of terminals demodulating the transmission data transmitted from a respective terminal on the basis of the value of the estimated channel; decoding a received signal included in the uplink data slots, estimating a current channel between each of all antennas of the base station and the respective terminal; and comparing the stored value of the estimated channel with a value of the estimated current channel and updating the stored value of the estimated channel to the value of the estimated current channel.

Description

[0001] Cross References to Related Applications [0002] This application is related to and claims priority to US Provisional Application Serial No. 62 / 008898, filed June 6, 2014, the contents of which are hereby incorporated by reference. technical field [0003] The present disclosure relates to a MIMO (Multiple Input, Multiple Output) communication method, and more particularly, to a MIMO communication method of transmitting and receiving pilot signals. Background technique [0004] In recent years, with the widespread use of smartphones, the amount of wireless communication performed by mobile terminals has exploded. It is expected that communication between devices will be performed without human interference in the future. Starting from 2020, the business volume may increase by 1,000 to 10,000 times. Therefore, new communication systems are being actively researched. That is, in addition to LTE and LTE-A which have been actually used commercially, a system realizing...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/0413H04L27/26
CPCH04B7/0413H04L27/2613
Inventor 楠繁雄E·本格特森应志农
Owner SONY CORP