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Methods of encoding and decoding key system information

A main system, broadcast channel technology, applied in signaling distribution, wireless communication, transmission path sub-channel distribution, etc.

Active Publication Date: 2019-05-31
HFI INNOVATION INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing physical container (container) PBCH for MIB needs CRS for demodulation, but there is no CRS in NCT of LTE

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  • Methods of encoding and decoding key system information
  • Methods of encoding and decoding key system information
  • Methods of encoding and decoding key system information

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Embodiment Construction

[0031] The following describes examples of the present invention with reference to some embodiments of the present invention in detail and with reference to the accompanying drawings.

[0032] In the 3GPP LTE system based on OFDMA DL, the radio resources are divided into multiple radio frames, each of which contains two time slots and each time slot contains the normal cyclic prefix (CP) in the time domain 7 OFDMA symbols in the lower time domain, and 6 OFDMA symbols in the extended CP case. Depending on the system bandwidth, each OFDMA symbol further includes multiple OFDMA subcarriers in the frequency domain. A basic unit of a resource grid (resource grid) is called a resource element (Resource Element, RE), where the resource element is distributed (span) in one OFDMA subcarrier on one OFDMA symbol. A physical resource block (Physical Resource Block, PRB) occupies one time slot and 12 subcarriers, including 84 REs in the case of normal CP and 72 REs in the case of extended...

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Abstract

New enhanced physical broadcast channel (EPBCH) based on UE-specific reference signals (DMRS) for MIB and SIB transmission is proposed. The overall design consideration for EPBCH can be summarized as follows: support different values of frequency reuse factor, support different cell coverage sizes, maximized diversity gain in open-loop operation such as transmit diversity and frequency diversity, minimized overhead, and minimized UE complexity.

Description

[0001] Cross References to Related Applications [0002] This application requires application number 61 / 839,524 according to 35 U.S.C. §119, the filing date is June 26, 2014, and the title is "Enhanced Broadcast Channel for Primary System Information in OFDM / OFDMA System (Enhanced Broadcast Channel for Primary System Information Acquisition in OFDM / OFDMA Systems)” U.S. provisional application priority. The subject matter of the above application is hereby incorporated by reference. technical field [0003] The embodiments disclosed in the present invention are generally related to enhanced physical broadcast channel (Enhanced Physical Broadcast Channel, EPBCH), more specifically, related to EPBCH transmission and definition of EPBCH search space (Search Space, SS) in OFDM / OFDMA system. Background technique [0004] In the 3GPP Long-Term Evolution (LTE) network, the Evolved Universal Terrestrial Radio Access Network (Evolved Universal Terrestrial Radio Access Network, E-UT...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/26
CPCH04L5/0053
Inventor 廖培凯庄向阳
Owner HFI INNOVATION INC