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Method and apparatus for random access in a communication system with a large number of antennas

A technology for random access signals and wireless networks, applied in diversity/multi-antenna systems, wireless communications, radio transmission systems, etc., and can solve problems such as difficulty in capital and operating costs, increased network signaling overhead and delay, etc.

Active Publication Date: 2019-04-05
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the capital and operating costs to acquire, install, and maintain a large number of cells can pose difficulties, since a 1000-fold increase in capacity theoretically requires a 1000-fold increase in the number of cells deployed
In addition, as the cell size decreases, frequent handovers are required, which increases network signaling overhead and delay

Method used

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  • Method and apparatus for random access in a communication system with a large number of antennas
  • Method and apparatus for random access in a communication system with a large number of antennas
  • Method and apparatus for random access in a communication system with a large number of antennas

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Embodiment Construction

[0036] discussed below Figures 1 to 22 , and the various embodiments used to describe the principles of the disclosure in this patent document are by way of illustration only and should not be construed in any way as limiting the scope of the disclosure. Those skilled in the art will understand that the principles of the present disclosure may be implemented in any suitably arranged wireless communication system.

[0037] Aspects, features, and advantages of the present disclosure and the following and accompanying Figure 1 Starting from the detailed description, it will be made more explicit, simply by illustrating a number of specific examples and implementations, including the best mode contemplated for carrying out the disclosure. The disclosure is also capable of other and different embodiments, and various details and aspects can be modified without departing from the scope and spirit of the disclosure.

[0038] Accordingly, the drawings and descriptions are to be re...

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Abstract

A method for performing random access by a user equipment (UE) in a wireless network, comprising: configuring at least one UE transmit beam for transmitting a random access signal; generating the at least one UE transmit beam using an antenna array according to the configuration; and The random access signal is sent to a base station (BS) on the at least one UE transmit beam. A user equipment for performing random access in a wireless network, the user equipment includes a processing circuit configured to configure at least one UE transmit beam for transmitting a random access signal, and use an antenna array to generate the At least one UE transmits a beam, and transmits the random access signal to a base station (BS) on the at least one UE transmits beam.

Description

technical field [0001] The present disclosure generally relates to Random Access Channel (RACH) procedures in mmWave mobile broadband systems. Background technique [0002] It is expected that the next generation of mobile broadband communication systems (5G) will need to provide 100-1000 times more capacity than current 4G systems (such as LTE and WiMAX) to meet the expected growth of mobile traffic. Existing methods for increasing spectral efficiency are unlikely to meet this exploding demand for wireless data. The current 4G system uses include Orthogonal Frequency Division Multiplexing (OFDM), Multiple Input Multiple Output (MIMO), Multi-user Diversity, Space Division Multiple Access (SDMA), High-order Modulation and Advanced Coding, and Link A variety of advanced technologies for road adaptation to eliminate the gap between theoretical limits and practical results. Therefore, new technologies like carrier aggregation, high-order MIMO, coordinated multi-point (CoMP) tr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W74/08H04B7/0404H04B7/06
CPCH04B7/0617H04B7/0404H04B7/0695H04W74/0833H04W52/42H04W52/146H04W74/0838
Inventor 李英R.斯特林加拉赫皮周悦R.塔奥里
Owner SAMSUNG ELECTRONICS CO LTD