公开(公告)号：US20210376970A1

公开(公告)日：2021-12-02

申请号：US17390407

申请日：2021-07-30

Applicant: Intellectual Ventures II LLC

Inventor： Xiaodong LI ,  Titus Lo ,  Kemin Li ,  Haiming Huang

IPC: H04L5/00 ,  H04L5/14 ,  H04W72/00 ,  H04W72/04

Abstract: A mobile station using orthogonal frequency division multiple access (OFDMA). The frequency processing circuitry and the processor of the mobile station are configured to scan spectral bands for a first signal. The first signal having synchronization and cell identification information, and is received in a first band of a cell having a full bandwidth. The first band being within a first bandwidth part and the first bandwidth part being a portion of the full bandwidth of a cell that comprises a plurality of bandwidth parts. Further, the frequency processing circuitry and the processor configured to receive and process signals in the first bandwidth part and configured to switch to receive and process a second bandwidth part, the second bandwidth part being different frequency size than the first bandwidth part.

公开(公告)号：US20240243861A1

公开(公告)日：2024-07-18

申请号：US18621995

申请日：2024-03-29

Applicant: Intellectual Ventures II LLC

Inventor： Xiaodong LI ,  Titus Lo ,  Kemin Li ,  Haiming Huang

IPC: H04L5/00 ,  H04L5/14 ,  H04L27/26 ,  H04W48/16 ,  H04W72/00 ,  H04W72/23 ,  H04W72/30 ,  H04W76/10

CPC classification number: H04L5/0007 ,  H04L5/0028 ,  H04L5/0041 ,  H04L5/0044 ,  H04L5/0064 ,  H04L5/1469 ,  H04W72/23 ,  H04W72/30 ,  H04L5/0021 ,  H04L5/0048 ,  H04L5/0094 ,  H04L27/2613 ,  H04W48/16 ,  H04W72/00 ,  H04W76/10

Abstract: A mobile station using orthogonal frequency division multiple access (OFDMA). The frequency processing circuitry and the processor are configured to scan spectral bands for a first signal, the first signal having synchronization and system information. Wherein, the system information comprises configuration of a first multi-carrier communication structure, wherein the first multi-carrier communication structure comprises allocated subcarriers, a subcarrier bandwidth, and a time duration of an OFDM symbol. Further, the frequency processing circuitry and the processor configured to receive and process signals in the first multi-carrier communication structure and switch to receive and process signals using a second multi-carrier communication structure, the second multi-carrier communication structure having different subcarrier bandwidth than the first multi-carrier communication structure.

公开(公告)号：US20210376971A1

公开(公告)日：2021-12-02

申请号：US17396972

申请日：2021-08-09

Applicant: Intellectual Ventures II LLC

Inventor： Xiaodong LI ,  Titus Lo ,  Kemin Li ,  Haiming Huang

IPC: H04L5/00 ,  H04W72/04 ,  H04L5/14 ,  H04W72/00

Abstract: A mobile station using orthogonal frequency division multiple access (OFDMA). The frequency processing circuitry and the processor of the mobile station are configured to scan spectral bands for a first signal. The first signal having broadcast information and being in a first band, the first band being a portion of a full bandwidth of the cell, wherein the broadcast information includes bandwidth information. Further, the frequency processing circuitry and the processor are configured to receive additional broadcast information by processing a second band being in a single sideband in the frequency domain of the full bandwidth of the cell with respect to the first band. Further, the frequency processing circuitry and the processor configured to access the cell using the broadcast information received in both the first band and the second band.

公开(公告)号：US20150155980A1

公开(公告)日：2015-06-04

申请号：US14505913

申请日：2014-10-03

Applicant: Intellectual Ventures II LLC

Inventor： Xiaodong LI ,  Titus Lo ,  Kemin Li ,  Haiming Huang

IPC: H04L5/00 ,  H04W72/04 ,  H04W72/00

CPC classification number: H04L5/0007 ,  H04L5/0021 ,  H04L5/0028 ,  H04L5/0041 ,  H04L5/0044 ,  H04L5/0048 ,  H04L5/0064 ,  H04L5/0094 ,  H04L5/1469 ,  H04L27/2613 ,  H04W48/16 ,  H04W72/00 ,  H04W72/005 ,  H04W72/042 ,  H04W76/10

Abstract: Methods and apparatus for multi-carrier communication with variable channel bandwidth are disclosed, where the time frame structure and the OFDM symbol structure are invariant and the frequency-domain signal structure is flexible. In one embodiment, a mobile station, upon entering a geographic area, uses a core-band to initiate communication and obtain essential information and subsequently switches to full operating bandwidth of the area for the remainder of the communication. If the mobile station operates in a wide range of bandwidths, the mobile station divides the full range into sub-ranges and adjusts its sampling frequency and its FFT size in each sub-range.

Abstract translation: 公开了具有可变信道带宽的多载波通信的方法和装置，其中时间帧结构和OFDM符号结构是不变的，并且频域信号结构是灵活的。 在一个实施例中，移动站在进入地理区域时使用核心频带来发起通信并获得必要的信息，随后在通信的剩余部分中切换到该区域的完整工作带宽。 如果移动站在宽带宽范围内工作，则移动站将全部范围划分为子范围，并在每个子范围内调整其采样频率及其FFT大小。