Invention Grant
US08179783B2 System and method of modulation and coding scheme adjustment for a LTE shared data channel
有权
用于LTE共享数据信道的调制和编码方案调整的系统和方法
- Patent Title: System and method of modulation and coding scheme adjustment for a LTE shared data channel
- Patent Title (中): 用于LTE共享数据信道的调制和编码方案调整的系统和方法
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Application No.: US12506057Application Date: 2009-07-20
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Publication No.: US08179783B2Publication Date: 2012-05-15
- Inventor: Jung-Fu Cheng , Yang Hu
- Applicant: Jung-Fu Cheng , Yang Hu
- Applicant Address: SE Stockholm
- Assignee: Telefonaktiebolaget L M Ericsson (Publ)
- Current Assignee: Telefonaktiebolaget L M Ericsson (Publ)
- Current Assignee Address: SE Stockholm
- Main IPC: H04J11/00
- IPC: H04J11/00 ; H04W4/00 ; H04L5/12 ; H04L27/02 ; H04L27/36 ; H03C1/52 ; H03D1/24
Abstract:
A system, method and node for modulation and coding scheme adjustment for a Long Term Evolution (LTE) shared Data Channel. The method determines an actual number of orthogonal frequency division multiplexing (OFDM) symbols, NOS utilized for the shared Data Channel. A modulation order for transmission of data on the shared Data Channel is increased when the actual number of OFDM symbols NOS is less than 11 and decreased when NOS is more than 11. A modulation and coding scheme field (IMCS) of a downlink control information of the shared Data Channel may also be determined. If 0≦IMCS+11−NOS≦28, the modulation order is modified by utilizing a factor of (IMCS+11−NOS) in a standardized modulation scheme. If it is determined that IMCS+11−NOS 28, the modulation order is set to 64 Quadtrative Amplitude Modulation (64QAM).
Public/Granted literature
- US20100074195A1 SYSTEM AND METHOD OF MODULATION AND CODING SCHEME ADJUSTMENT FOR A LTE SHARED DATA CHANNEL Public/Granted day:2010-03-25
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