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Neighbor cell transmission parameter configuration method, determination method thereof and associated device

A technology for transmission parameters and neighboring cells, which is applied in network data management, wireless communication, electrical components, etc., and can solve problems such as inability to guarantee, increased reception complexity, and excessive waste of CSS resources.

Inactive Publication Date: 2015-09-23
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0022] In the above method, the reception complexity of the terminal will be greatly increased, and multiple blind detections of PDCCH / ePDCCH are required. Moreover, in method 1), CSS resources will be wasted too much; in method 2), the terminal needs to receive multiple PDSCHs , the receiving complexity increases
In addition, when the terminal receives large interference, it cannot guarantee the receiving performance of PDCCH / ePDCCH and PDSCH of neighboring cells

Method used

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  • Neighbor cell transmission parameter configuration method, determination method thereof and associated device
  • Neighbor cell transmission parameter configuration method, determination method thereof and associated device
  • Neighbor cell transmission parameter configuration method, determination method thereof and associated device

Examples

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Effect test

Embodiment 1

[0152] According to the background technology, in the traditional MBSFN subframe configuration, the indication of the MBSFN subframe does not distinguish which subframes are used for PMCH and which subframes are used for PDSCH transmission, resulting in the existence of vague question. In order to solve this problem, 2 ways are considered here:

[0153] Mode 1: The high layer configures the MBSFN subframe potentially assigned to the PMCH or PDSCH transmission by the neighboring cell through RRC signaling; the terminal receives the MBSFN subframe configuration parameters; and performs interference cancellation processing based on the configuration parameters, specifically,

[0154] If the subframe in which the terminal receives the target PDSCH signal is included in the subframe indicated by the MBSFN subframe configuration parameter, the terminal does not perform interference cancellation processing, or performs PMCH interference cancellation based on the MBSFN reference signal ...

Embodiment 2

[0164] In this embodiment, different transmission modes are classified, and classification information is indicated to the terminal. Specifically, the network side and the terminal classify the transmission modes supported by the current protocol according to a pre-agreed manner, and the network side configures a subset of transmission modes allowed on different resource units, or a subset of restricted transmission modes.

[0165] Method 1: Divide the transmission modes into three categories: TM type1, TM type2, and TM type3. The network side classifies the transmission modes into the above three categories according to the characteristics of different transmission modes. The classification method can be as follows:

[0166] TM type1 corresponds to transmission mode {TM3with rank>1, TM7}, TM type2 corresponds to transmission mode {TM1, TM2, TM4, TM3with rank=1, TM5, TM6}, TM type3 corresponds to transmission mode {TM8, TM9, TM10 };

[0167] Or TM type1 corresponds to {TM3with...

Embodiment 3

[0189] Based on the TM type parameter configuration method described in Embodiment 2, in this embodiment, it is further considered to configure other parameters based on the TM type configuration parameter, so as to further reduce signaling overhead.

[0190] According to the grouping method of TM types in embodiment 2 and the difference of transmission parameters between different TM types, the basic idea of ​​this embodiment is based on the resource locations corresponding to different TM types in the high-level configuration parameters of TM type (including the corresponding time domain, frequency domain resource location), respectively configure the blind detection parameter limit set at the resource location corresponding to different TM types. For example, taking method 2 in Embodiment 2 as an example, for resource positions corresponding to TM type1 (which can be resource units, resource blocks, subframes, time slots or a combination of resource units / resource blocks and...

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Abstract

The embodiment of the invention discloses a neighbor cell transmission parameter configuration method which comprises the following steps that: a network side configures the transmission parameter of a neighbor cell to a target terminal through a radio resource control (RRC) configuration signaling, and the transmission parameter is used for determining the neighbor cell transmission parameter and / or the blind detection range of the neighbor cell transmission parameter by the target terminal. The embodiment of the invention also discloses a neighbor cell transmission parameter determination method which comprises the following steps that: a terminal receives an RRC configuration signaling which carries the transmission parameter of a neighbor cell, and the terminal determines the transmission parameter and / or the blind detection range of the neighbor cell according to the RRC configuration signaling. The embodiment of the invention also discloses a network side device and a terminal correspondingly.

Description

technical field [0001] The present invention relates to the technical field of parameter configuration, in particular to a configuration method, a determination method and a related device for adjacent cell transmission parameters. Background technique [0002] Inter-cell interference is an inherent problem in cellular mobile communication systems. The traditional solution is to use frequency reuse to avoid inter-cell interference by allowing adjacent cells to use different carrier frequencies. In the Orthogonal Frequency Division Multiplexing (OFDM, Orthogonal Frequency Division Multiplexing) system, the frequency reuse coefficient is 1, that is, adjacent cells use the same carrier frequency, and the inter-cell interference problem will be more than traditional frequency reuse. The system is complicated. Long Term Evolution (LTE, Long Term Evolution) is a system based on OFDM technology. It mainly uses inter-cell interference randomization, interference avoidance and coord...

Claims

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Application Information

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IPC IPC(8): H04W8/08H04W24/02H04W72/08
CPCH04W8/08H04W24/02H04W72/542
Inventor 孙云锋弓宇宏王瑜新张淑娟邬华明
Owner ZTE CORP
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