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Method and apparatus for efficiently operating sleep bandwidth portion in next generation mobile communication system

A wireless communication system and downlink technology, applied in the field of operation of mobile communication system terminals and base stations, can solve the problem of not making a decision, and achieve the effect of saving battery

Pending Publication Date: 2022-03-18
SAMSUNG ELECTRONICS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

No determination has been made, and no assertion has been made, as to whether any of the foregoing might be applicable as prior art to the present disclosure

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  • Method and apparatus for efficiently operating sleep bandwidth portion in next generation mobile communication system
  • Method and apparatus for efficiently operating sleep bandwidth portion in next generation mobile communication system
  • Method and apparatus for efficiently operating sleep bandwidth portion in next generation mobile communication system

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[0282] In the present disclosure, a first embodiment of switching states (or switching bandwidth sections) in units of bandwidth sections and operating in accordance therewith is as follows.

[0283] In the first embodiment, when multiple bandwidth parts are configured for each cell in the terminal through an RRC message, the dormant bandwidth part is configured by an indicator or a bandwidth part identifier, such as Figure 1F shown. In addition, the base station instructs to switch the bandwidth part to the dormant bandwidth part for the enabled cell by using the DCI of the PDCCH (ie L1 signaling). In the dormant bandwidth part, PDCCH monitoring is not performed, and data transmission or reception is not performed, but channel measurement reports are performed, so as to reduce terminal battery consumption and allow the bandwidth part to be quickly enabled. The base station can instruct bandwidth part switching by transmitting DCI of PDCCH (ie L1 signaling) in a cell (self-s...

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Abstract

The present disclosure relates to a communication technology that combines a 5G communication system with an IoT technology to support a higher data transmission rate than a 4G system, and a system therefor. The present disclosure can be applied to intelligent services (e.g., services related to smart homes, smart buildings, smart cities, smart cars or connected cars, health care, digital education, retail businesses, security, and the like) based on the 5G communication technology and the IoT-related technology. In an embodiment of the present disclosure, a method performed by a terminal in a wireless communication system is provided. The method includes receiving, from a base station, a radio resource control (RRC) message including information on an identifier indicating a secondary cell (Scell), information on at least one bandwidth portion (BWP) of the Scell, and information including first information on a first BWP serving as a dormant BWP among the at least one BWP and second information on a second BWP enabled from the dormant BWP to a non-dormant BWP; receiving downlink control information (DCI) from the base station, the DCI including a bit map associated with BWP enabling of the Scell; and enabling a BWP identified based on at least one of the first information or the second information, the identifier, and the bitmap. According to the present disclosure, a carrier aggregation technique can be quickly enabled by a method of operating a new sleep (or sleep) mode in units of a bandwidth portion (bandwidth portion level), and a battery of a terminal can be saved.

Description

technical field [0001] The present disclosure relates to the operation of terminals and base stations of a mobile communication system. In particular, the present disclosure relates to a method and apparatus for efficiently operating a dormant bandwidth portion in a next generation mobile communication system. Background technique [0002] To meet the increasing demand for wireless data traffic since the deployment of 4G communication systems, efforts have been made to develop improved 5G or pre-5G communication systems. Therefore, 5G or pre-5G communication system is also called "beyond 4G network" or "post-LTE system". 5G communication systems are considered to be implemented in higher frequency (mmWave) frequency bands, such as the 60GHz band, to achieve higher data rates. In order to reduce the propagation loss of radio waves and increase the transmission distance, beamforming, massive multiple-input multiple-output (MIMO), full-dimensional MIMO (FD-MIMO), array antenn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/06H04L1/16H04L1/18H04L5/00H04W72/04H04W76/11H04W76/27
CPCH04B7/0626H04L1/1854H04W76/11H04W76/27H04L1/1819H04L5/0092H04W72/0453H04L1/1614H04L1/1896H04L5/0098H04L1/1685H04W72/21H04W72/23H04L5/0053H04L1/1812Y02D30/70
Inventor 金东建阿尼尔·阿吉瓦尔金成勋
Owner SAMSUNG ELECTRONICS CO LTD
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