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Control signaling used for communication system and transmitting method for its reference signal

A technology of control signaling and reference signals, which is applied in the field of communication, can solve the problems that TDDTYPE2 control signaling and its reference signal transmission method have not yet been studied, and achieve the effect of ensuring reliable transmission and improving transmission performance

Inactive Publication Date: 2013-01-16
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

LTE currently only discusses the frequency division duplex (Frequency Division Dual, referred to as FDD) system about the transmission method of control signaling and its reference symbols, and has not started research on the transmission method of TDD TYPE 2 control signaling and its reference signals

Method used

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  • Control signaling used for communication system and transmitting method for its reference signal
  • Control signaling used for communication system and transmitting method for its reference signal
  • Control signaling used for communication system and transmitting method for its reference signal

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Embodiment Construction

[0030] In the method for transmitting control signaling and reference signals thereof for the LTE TDD TYPE2 system according to the present invention, it is required that:

[0031] In a transmission signal unit composed of multiple subframes, when there is no service data transmission, each control signaling resource consists of one or more OFDM symbols for transmitting control signaling data and one or more OFDM symbols for transmitting corresponding reference signals symbol composition.

[0032] Each user uses the same time resource to transmit control signaling and its corresponding reference signal, that is, the time domain positions of the symbols occupied by the control signaling data of all users are the same, and the reference signals corresponding to the control signaling of all users occupy the same space of symbols. The time domain position is also the same.

[0033] Each user is assigned a fixed-length orthogonal (or quasi-orthogonal) code in the frequency domain,...

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Abstract

This invention discloses an emitting method for control signaling and its reference signals in communication system including: modulating control signaling and its reference signal of a user going to send control signaling with a frequency domain orthogonal or quasi-orthogonal code of fixed length and time domain orthogonal or quasi-orthogonal code of fixed length, dividing all symbols of sub-frames into multiple parts to send the modulated control signaling by the multiple symbols and send the modulated reference signals by the rest multiple symbols, in which, FH in sub-frames is realized bydistributing different frequency domains for each part, which guarantees reliable transmission of control signaling of multiple users and realizes flexible multiplex of Sounding signals and control signaling when emitting Sounding and control signaling at the same time.

Description

technical field [0001] The present invention relates to the communication field, and more particularly relates to a method for transmitting control signaling and a reference signal thereof for a communication system. Background technique [0002] In the 3GPP Long Term Evolution (LTE for short) system, a signal is transmitted in units of subframes. In LTE, a subframe contains several time-frequency resource blocks. The resource blocks at both ends of the frequency domain are used to carry control signaling that is not transmitted simultaneously with service data, and the remaining resource blocks are used to carry service data and can be transmitted simultaneously with service data. control signaling. An LTE time division duplex (Time Division Dual, TDD for short) system type (TYPE) 2 subframe has two modes of short CP and long CP. For the short CP mode, a subframe has 9 symbols (Long Block, LB for short) type of Orthogonal Frequency Division Multiplexing (OFDM for short) s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L27/26H04L1/16
Inventor 薛妍郁光辉夏树强
Owner ZTE CORP
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