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Method for solving conflict of system broadcast information of relay node

A technology for system broadcast information and relay nodes, which is applied in the field of resolving relay node system broadcast information conflicts, can solve problems such as simultaneous reception conflicts, relay node system broadcast information conflicts, etc., and achieves the goal of avoiding simultaneous reception and transmission of system broadcast information Effect

Inactive Publication Date: 2010-11-03
ZTE CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved by the present invention is to propose a method for solving the conflict of relay node system broadcast information, which avoids the problem that the RN simultaneously receives the system broadcast information from the Donor-eNB and sends the system broadcast information to the UE to cause conflicts

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  • Method for solving conflict of system broadcast information of relay node
  • Method for solving conflict of system broadcast information of relay node
  • Method for solving conflict of system broadcast information of relay node

Examples

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Comparison scheme
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Embodiment 1

[0056] Embodiment one, adopt technical scheme one

[0057] Such as image 3 As shown, it shows how to use the present invention to realize that the RN's system broadcast information does not conflict when receiving and sending system broadcast information:

[0058] Each square in the figure represents a TTI width (1ms) in the timing. Each radio frame (10ms) includes 10 subframes (1ms), which are respectively labeled as 0-9.

[0059] The Donor-eNB notifies the RN of the offset of the wireless frame boundary of the RN through the system broadcast information;

[0060] The RN receives the system broadcast information including the offset of the RN's radio frame boundary, determines its own radio frame boundary, and receives and sends the system broadcast information according to the transmission cycle specified by LTE.

[0061] In this way, the RN receives and sends the system broadcast information staggered in the time domain, ensuring that the system broadcast information do...

Embodiment 2

[0066] Embodiment two, adopt technical scheme one

[0067] Such as Figure 4 As shown, the Donor-eNB notifies the RN of the offset of the radio frame boundary of the RN through dedicated signaling;

[0068] The RN receives the dedicated signaling containing the offset of the RN's radio frame boundary, determines its own radio frame boundary, and receives and transmits system broadcast information according to the transmission cycle specified by LTE.

[0069] In this way, the RN receives and sends the system broadcast information staggered in the time domain, ensuring that the system broadcast information does not conflict.

[0070] Wherein, the dedicated signaling refers to the dedicated signaling specifying the UE or the dedicated signaling specifying the RN, which may be a field representing the offset of the radio frame boundary added to the existing dedicated signaling, or may be Define new dedicated signaling to transfer the offset of the radio frame boundary; that is, ...

Embodiment 3

[0073] Embodiment three, adopt technical scheme two

[0074] The RN presets the offset of the wireless frame boundary of the RN for itself;

[0075] The RN notifies the Donor-eNB of the offset of the wireless frame boundary through dedicated signaling, such as Figure 5 shown;

[0076] After receiving it, the Donor-eNB determines the subsequent scheduling sequence according to the offset of the radio frame boundary of the RN.

[0077] Wherein, the dedicated signaling refers to the dedicated signaling for specifying the UE or the dedicated signaling for specifying the RN, which may be to add a field in the existing dedicated signaling to represent the offset of the radio frame boundary, or to define The new dedicated signaling is used to transfer the offset of the radio frame boundary; that is, the RN informs the Donor-eNB of the offset of the radio frame boundary through dedicated signaling, which can be implemented in one of the following ways:

[0078] Mode 1: The RN adds...

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Abstract

The invention discloses a method for solving a conflict of system broadcast information of a relay node (RN), which comprises the following steps of: staggering a radio frame border of the RN from the radio frame border of a base station Donor-eNB, and allocating the offset of the radio frame border of the RN by using the Donor-eNB or by using the RN per se; and receiving and transmitting the system broadcast information according to a transmission period set by long-term evolution (LTE) by using the RN. Or the method comprises that: the RN sets own radio frame border to be synchronous and aligned with the radio frame border of the Donor-eNB, reads the system broadcast information according to the transmission period set by the LTE in initial power-on and does not monitor the system broadcast information subsequently; and when the system broadcast information is updated, the Donor-eNB informs the RN of the system broadcast information by special signaling. The method has the advantages of solving the problem of the conflict of simultaneous reception and transmission of the system broadcast information by the RN.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method for solving broadcast information conflicts of a relay node (Relay-Node, RN for short) system. Background technique [0002] In order to meet the growing demand for large bandwidth and high-speed mobile access, the Third Generation Partnership Projects (Third Generation Partnership Projects, 3GPP for short) launched the Long-Term Evolution advance (LTE-Advanced for short) standard. LTE-Advanced retains the core of LTE for the evolution of Long-Term Evolution (LTE for short), and uses a series of technologies to expand the frequency domain and air domain on this basis to improve spectrum utilization and increase system capacity, etc. Purpose. The wireless relay (Relay) technology is one of the technologies in LTE-Advanced, which aims to expand the coverage of the cell, reduce the dead area in communication, balance the load, transfer the business i...

Claims

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Application Information

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IPC IPC(8): H04W28/02H04W72/04
CPCH04W72/0406H04W84/047H04W48/08H04B7/155H04B7/15542H04W72/20
Inventor 陈思和峰
Owner ZTE CORP
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