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Transmission method for demodulation reference signal of physical uplink shared channel and user equipment (UE)

A technology of physical uplink sharing and channel demodulation, applied in the field of long-term advanced evolution wireless communication, which can solve the problems of inconsistent CS hopping patterns, inability to decode OCC correctly, collision of user-specific sequences and cell-specific sequences, etc.

Active Publication Date: 2013-09-18
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0039] The technical problem to be solved by the present invention is to provide a method for sending a physical uplink shared channel demodulation reference signal and user equipment, to solve the problem of OCC unable to decode correctly and the collision of user-specific sequences and cell-specific sequences caused by inconsistency of CS hopping patterns question

Method used

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  • Transmission method for demodulation reference signal of physical uplink shared channel and user equipment (UE)
  • Transmission method for demodulation reference signal of physical uplink shared channel and user equipment (UE)
  • Transmission method for demodulation reference signal of physical uplink shared channel and user equipment (UE)

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0155] The user equipment receives signaling configuration information sent by the base station for the user equipment to determine the demodulation reference signal of the physical uplink shared channel, including: a user-specific sequence group number offset.

[0156] The user equipment uses the following formula to determine the sequence group number u of the demodulation reference signal of the physical uplink shared channel:

[0157] u=((f gh (n s )+f ss )mod30+Δ u )mod30

[0158] Among them, f gh (n s ) is the sequence group jump pattern, f ss is the sequence shift pattern, Δ u is the user-specific sequence group number offset, and Δ u ∈ {0, 1, ..., 29}.

[0159] The user equipment receives user-specific signaling configuration information for the user equipment to determine the upper demodulation reference signal sent by the base station through high-layer signaling or physical layer signaling.

Embodiment 2

[0161] The user equipment receives the signaling configuration information sent by the base station for the user equipment to determine the demodulation reference signal of the physical uplink shared channel, including: user-specific cell identification number, user-specific cell identification offset, user-specific sequence Group pattern offset.

[0162] The user equipment uses one of the following formulas to determine the initialization condition c of the pseudo-random sequence generator of the sequence group hopping pattern of the physical uplink shared channel demodulation reference signal init :

[0163] or

[0164] or

[0165] or

[0166] or

[0167] or

[0168] or

[0169] or

[0170] or

[0171]

[0172] in, is the cell identification number, is the user-specific cell identification number, is the user-specific cell identity offset, ΔN gh is the user-specific sequence group pattern offset, ΔN gh ∈ {0, 1, ..., 16}.

[0173] The...

Embodiment 3

[0176] The user equipment receives the signaling configuration information sent by the base station for the user equipment to determine the demodulation reference signal of the physical uplink shared channel, including: user-specific cell identification number, user-specific cell identification offset, user-specific sequence Group pattern offset.

[0177] The user equipment uses one of the following formulas to determine the initialization condition c of the pseudo-random sequence generator of the sequence hopping pattern of the physical uplink shared channel demodulation reference signal init :

[0178] or

[0179] or

[0180] or

[0181] or

[0182] or

[0183] or

[0184]

[0185] in, is the cell identification number, is the user-specific cell identification number, is the user-specific cell identity offset, ΔN gh is the user-specific sequence group pattern offset, ΔN gh ∈{0,1,...,16}; is the sequence shift pattern of the physical uplin...

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Abstract

The invention discloses a transmission method for a demodulation reference signal of a physical uplink shared channel and user equipment (UE). The method comprises the following steps that the UE receives signaling configuration information for the UE to determine the demodulation reference signal of the physical uplink shared channel; and the UE determines the demodulation reference signal of the physical uplink shared channel by using the signaling configuration information, and transmits the demodulation reference signal, wherein the signaling configuration information comprises at least one of parameters of UE-specific sequence group number offset, a UE-specific cell identification number, UE-specific cell identification offset, UE-specific sequence group pattern offset, UE-specific sequence shift pattern offset and UE-specific or cell-specific CS (cyclic shift) hopping-enabled signaling. According to the scheme, the problem that an OCC (orthogonal cover code) cannot be accurately decoded due to inconsistent CS hopping patterns and the problem of collision of a UE-specific sequence and a cell-specific sequence can be effectively solved, so that the performance of a CoMP (coordinated multiple point) system is improved, and the resource utilization rate of the CoMP system is increased.

Description

technical field [0001] The present invention belongs to the technical field of Long Term Evolution-Advanced (LTE-A for short) wireless communication, relates to a method for sending a demodulation reference signal of a physical uplink shared channel, and in particular relates to a Coordinated Multiple Point (Coordinated Multiple Point for short). A method for sending a demodulation reference signal for a physical uplink shared channel in a CoMP system and a user equipment. Background technique [0002] In the 3rd Generation Partnership Project (The 3 rd In the Long Term Evolution (LTE) system of the Generation Partnership Project (abbreviated as 3GPP), the centralized scheduling method of the base station is adopted to control the physical uplink shared channel (Physical Uplink Shared Channel) of the user equipment (User Equipment, referred to as UE). Channel, referred to as PUSCH) transmission. [0003] In the LTE system, the physical uplink shared channel is transmitted...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/06
CPCH04W72/23
Inventor 弓宇宏孙云锋李书鹏张峻峰
Owner ZTE CORP
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