Method and apparatus for improved cell synchronization
A cell and cell group technology, applied in the direction of synchronization device, transmission path separation device, access restriction, etc., can solve the problem of long detection time, achieve low delay, easy to distinguish each other, and reduce power consumption
Active Publication Date: 2020-10-27
TELEFON AB LM ERICSSON (PUBL)
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However, due to reasons such as poor signal properties, this is not always possible and the actual detection time is usually much longer
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[0038] Aspects of the present disclosure will be described more fully hereinafter with reference to the accompanying drawings. The devices and methods disclosed herein may, however, be embodied in many different forms and should not be construed as limited to the aspects set forth herein. Like reference numerals refer to like elements throughout the drawings.
[0039] The terms used herein are for the purpose of describing specific aspects of the present disclosure only, and are not intended to limit the present invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise.
[0040] As mentioned above, the actual time required for cell synchronization is usually much longer than the length of the synchronization signal that needs to be detected.
[0041] The reason is that, for example, if the signal quality is low, the detection of the synchronization signal may require combi...
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The present disclosure relates to methods and apparatus for improved cell detection. In particular, the present disclosure relates to demanding cell synchronization with low latency within a cell group. The present disclosure also relates to a corresponding computer program. The present disclosure proposes a method for cell detection within a cell group performed in a wireless device. The method comprises: detecting S1 a first synchronization signal of a first cell in the group, wherein said detecting comprises searching for any signal in a set of predefined synchronization signals. The method further comprises obtaining S2 information defining a subset of said predefined synchronization signals based on the detected first synchronization signal, wherein said subset defines synchronization signals possibly located within said group of cells. The method also comprises decoding S3 one or more other synchronization signals of the cells in the group of cells using the obtained information. The present disclosure also relates to a corresponding method in a network node and a corresponding device and computer program.
Description
technical field [0001] The present disclosure relates to methods and apparatus for improved cell synchronization. In particular, the present disclosure relates to cell synchronization within a cell group. The invention also relates to a corresponding computer program. Background technique [0002] 3GPP Long Term Evolution LTE is developed under the 3rd Generation Partnership Project 3GPP to improve the Universal Mobile Telecommunications System UMTS standard in response to future demands for improved services such as higher data rates, increased efficiency, and reduced costs The fourth generation mobile communication technology standard. In a typical cellular radio system, wireless devices or terminals (also referred to as mobile stations and / or user equipment units (UEs)) communicate via a radio access network (RAN) with one or more core networks. The Universal Terrestrial Radio Access Network UTRAN is the radio access network of the UMTS, and the Evolved UTRAN E-UTRAN i...
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IPC IPC(8): H04W56/00
CPCH04W56/002H04W56/0085H04L27/2613H04W56/0015H04W48/16H04L5/0053H04L5/0007H04W56/001H04B1/7075
Inventor 奥斯曼·努里·卡恩·伊尔马兹埃里克·埃里克松
Owner TELEFON AB LM ERICSSON (PUBL)