Method and device for ACK/NACK information indication and data retransmission
A technology of data retransmission and indication signaling, applied in multiplexing communication, using return channel for error prevention/detection, electrical components, etc., can solve problems such as waste of resources, inapplicability of TDD system, etc., to save time and frequency The effect of resources
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment Construction
[0018] Below in conjunction with accompanying drawing and embodiment, the specific embodiment of the present invention is described in further detail:
[0019] Taking the 5MHz bandwidth in the TDD system as an example, the number of effective subcarriers is 300, and the downlink control signaling is distributed on the first three OFDM symbols of a downlink subframe. Assuming that uplink resources are allocated in frame structure 2, 2 / 3 coding rate, QPSK demodulation, it can be assumed that each user's UL grant occupies one CCE, and each CCE occupies 36 REs (Resource Element, resource block), PFICH (PhysicalFormat ARQ Indication Channel, Physical Format Retransmission Request Indication Channel) The channel occupies 16 REs. In the case of a single antenna, in the first OFDM symbol of each downlink subframe, there will be 1 pilot symbol in every 6 subcarriers . The flow of a data retransmission method in an embodiment of the present invention is as follows: figure 1 shown, inc...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com