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Method and device for determining baseband parameter

A baseband and parameter technology, applied in the field of communication, can solve the problems of wireless communication system numerology without a clear solution

Active Publication Date: 2018-02-23
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Embodiments of the present invention provide a method and device for determining baseband parameters, which are used to solve the problem that there is no clear solution for how to determine numerology in a new wireless communication system

Method used

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  • Method and device for determining baseband parameter
  • Method and device for determining baseband parameter

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0359] Embodiment 1: The application scenario of this embodiment is as follows image 3 As shown, each System Information Area (SIA for short) corresponds to one TRP group, each TRP group contains only one TRP, and each TRP independently sends synchronization signals and system information. When the terminal accesses or camps on any TRP, it first detects synchronization signal 1 and synchronization signal 2 (synchronization signals 1 and 2 can be agreed at a fixed position of the system bandwidth, such as the middle position of the system bandwidth, so that when the system bandwidth is obtained Then determine the frequency domain position of the system bandwidth based on the frequency domain positions of synchronization signals 1 and 2. Of course, the time domain transmission positions of synchronization signals 1 and 2 can be further agreed, so that it is easy to infer after the synchronization signals 1 and 2 are blindly detected Obtain time-domain boundaries, such as wirele...

Embodiment 2

[0386] Embodiment 2: The application scenario of this embodiment is as follows Figure 5 As shown, one SIA corresponds to one TRP group, and each TRP group includes multiple TRPs, which can be synchronized or not synchronized, and all or part of the TRPs send the same initial synchronization signal and the system information. When the terminal accesses or resides in the TRP group, it first detects the synchronization signal 1 and the synchronization signal 2. The specific process is similar to that of Embodiment 1, and will not be repeated. It realizes synchronization with a TRP group, and then reads the TRP group system information.

[0387] Further, the terminal may obtain the system bandwidth of the TRP group through the system information, and of course may further include subband configuration information of the system bandwidth. For example, Figure 6A and Figure 6B , assuming that the system bandwidth is 100M, the 100M system bandwidth is divided into three subbands...

Embodiment 3

[0404] Embodiment 3: The application scenario of this embodiment is as follows Figure 7 As shown, one SIA corresponds to one TRP group, each TRP group contains multiple TRPs, and multiple TRPs can be synchronized or not synchronized, some TRPs work in the high frequency band, and some TRPs work in the low frequency band. The initial synchronization signal (synchronization signals 1 and 2) and the system information are only sent on all or part of the TRPs in one frequency band, or are sent on all or part of the TRPs in the low frequency and high frequency bands at the same time, and the TRPs participating in the transmission are sent The initial synchronization signal and the system information are the same; or, the system information broadcast by the TRP on a certain frequency band may only include related information on this frequency band, or may also include related information on another frequency band at the same time.

[0405] When a terminal accesses or resides in a T...

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Abstract

The invention discloses a method and a device for determining a baseband parameter. The method and the device for determining the baseband parameter are used for solving the problem that how to determine the baseband parameter numerology in a new wireless communication system is not defined. The method comprises the steps of determining a TRP group which the terminal belongs to based on a detectedinitial synchronization signal by a terminal; and determining the baseband parameter by the terminal based on a third synchronization signal detected in the TRP group and / or system information of theTRP group. By adoption of the scheme provided by the embodiment, baseband parameters corresponding to different sub-bands, different TRPs and / or different beams in one TRP group can be identified correctly, synchronization with different sub-bands, different TRPs and / or different beams in the TRP group is accordingly realized, and the terminal is guaranteed to work at the corresponding sub-band,TRP and / or Beam based on the correct baseband parameter.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and device for determining baseband parameters (numerology). Background technique [0002] In the existing Long Term Evolution (LTE for short) system, frame structures are respectively defined for Frequency Division Duplex (FDD for short) and Time Division Duplex (TDD for short). [0003] The LTE FDD system uses Frame Structure type 1 (Frame Structure type 1, FS1 for short), such as Figure 1A As shown, different carrier frequencies are used for uplink and downlink transmission, and the same frame structure is used for uplink and downlink transmission. A radio frame (radio frame) with a length of 10 ms includes ten subframes (subframe) with a length of 1 ms, and each subframe is divided into two time slots (slots) with a length of 0.5 ms. A transmission time interval (Transmission Time Interval, TTI for short) for sending uplink and downlink data is 1 ms....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L27/26H04L1/00
CPCH04L1/0038H04L27/2666H04L27/2675H04L27/2676H04L5/0007H04L27/261H04B7/0617H04L5/003H04L5/0053H04L5/0094H04W72/0453H04W16/28H04W56/00H04L27/26025H04W56/0015
Inventor 高雪娟郑方政潘学明高秋彬
Owner DATANG MOBILE COMM EQUIP CO LTD