Signal processing method and equipment

A signal processing and equipment technology, applied in the field of communication, can solve the problems of not guaranteeing the correct demodulation of data, affecting the correct reception of reference signals, and interference.

Active Publication Date: 2019-03-29
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, since the full-duplex device transmits and receives data on the same carrier at the same time, the following problems may occur: when the data is sent, the reference signal used to demodulate the data is sent at the same time, and there is interference between the sent reference signal and the received reference signal , which affects the correct reception of the reference signal, and cannot guarantee the correct demodulation of the data

Method used

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Examples

Experimental program
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Embodiment 1

[0063] figure 1 It is a schematic flow chart of an embodiment of the signal processing method of the present invention, the method may be executed by, for example, a user equipment (User Equipment, UE for short) or a base station (evolved Node B, eNB for short), such as figure 1 As shown, can include:

[0064] 101. Send a first data signal and receive a second data signal in a first resource block RB of a first subframe;

[0065] Wherein, the first subframe is a certain subframe in the time domain, and the first RB is a certain RB corresponding to the first subframe, that is, the first RB is the first RB in the time domain. The time domain corresponding to one subframe is 12 subcarriers in the frequency domain. The resource used for communication allocated by the base station to the UE may be multiple RBs, and the transmission mode adopted by each RB (the transmission mode refers to the position, sequence, etc. transmission format) may be the same, therefore, this embodimen...

Embodiment 2

[0077] In this embodiment, the sent first reference signal and the received second reference signal occupy the same resource position in the RB, but the sequence information of the two is different.

[0078] figure 2 It is a schematic diagram of the reference signal distribution in another embodiment of the signal processing method of the present invention Figure 1 ,Should figure 2 Shown is the reference signal distribution in one of the RBs.

[0079] In this example, figure 2 What is shown is a resource block (Resource Block, RB for short) in the Long Term Evolution (LTE for short) system, where the abscissa represents 14 Orthogonal Frequency Division Multiplexing (Orthogonal Frequency Division Multiplexing, referred to as: OFDM) symbols, such as figure 2 The column indicated by A1 shown in represents an OFDM symbol; the ordinate represents 12 subcarriers in the frequency domain, for example figure 2 The row indicated by B1 shown in represents one subcarrier.

[0...

Embodiment 3

[0087] In this embodiment, the sent first reference signal and the received second reference signal occupy different time-frequency resource positions in the RB.

[0088] Figure 5 It is a schematic diagram of the transmission reference signal distribution in another embodiment of the signal processing method of the present invention, Figure 6 It is a schematic diagram of distribution of received reference signals in another embodiment of the signal processing method of the present invention. Assume that sending the first reference information is on the OFDM symbols indicated by A2 and A3, and receiving the second reference signal is on the OFDM symbols indicated by A4 and A5.

[0089] Wherein, the first reference signal and the second reference signal occupy different time-frequency resources, so that mutual interference between the two can be avoided. Therefore, the sequence information of the first reference signal sent and the second reference signal received can be the ...

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Abstract

The invention provides a signal processing method and equipment. The method comprises the following steps: sending a first data signal and receiving a second data signal in a first RB of a first sub-frame; in the first RB, sending a first reference signal according to first reference information, and receiving a second reference signal according to second reference information, wherein the first reference information is different from the second reference information; the first reference information comprises a time-frequency resource position occupied by the first reference signal and sequence information of the first reference signal; and the second reference information comprises a time-frequency resource position occupied by the second reference signal and sequence information of the second reference signal. The signal processing method provided by the invention ensures the correct reception of the reference signals.

Description

technical field [0001] The present invention relates to communication technology, in particular to a signal processing method and equipment. Background technique [0002] With the rapid development of high-speed mobile Internet technology, various wireless broadband access technologies emerge in an endless stream, for example, Long Term Evolution (LTE for short) system, Long Term Evolution Advanced (LTE-Advanced, LTE-A for short) system, etc. ; In these systems, on the same time and frequency resources, the base station and the user equipment can only receive or send data, but cannot receive and send data at the same time; for example, in Frequency Division Duplexing (Frequency Division Duplexing, referred to as : FDD) system, the base station sends data to the user and the base station receives data using different frequency resources respectively. With the evolution of wireless broadband access technology, in order to obtain further improvement of system capacity within l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00
CPCH04B1/76H04B1/7156H04B2001/71563H04L5/0048H04L5/0091H04L5/0007H04L5/005H04L5/0092H04L5/00H04L5/14H04L27/261H04W88/08
Inventor 张雯吕永霞
Owner HUAWEI TECH CO LTD
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