Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method and system for realizing large-bandwidth carrier idle state detection

A technology with idle state and large bandwidth, applied in the field of communication, to achieve the effect of improving the efficiency of spectrum utilization

Active Publication Date: 2012-07-18
ZTE CORP
View PDF3 Cites 21 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the inter-frame interval is less than the time required by a normal CCA detection, which is not enough for physical channel detection before the sending station sends a wireless frame to another receiving station

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and system for realizing large-bandwidth carrier idle state detection
  • Method and system for realizing large-bandwidth carrier idle state detection
  • Method and system for realizing large-bandwidth carrier idle state detection

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] image 3 Among them, the carrier channel capacity of 100 is 160MHz. The carrier channel capacity of 101 is 80MHz. The carrier channel capacity of 102 is 80MHz.

[0066] 100 and 101 agree that the maximum carrier channel capability supported by both the transmitting and receiving parties is 80MHz. 100 and 102 agree that the maximum carrier channel capability supported by both the transmitting and receiving parties is 80 MHz.

[0067] 100 sends a channel reservation request frame of an 80 MHz carrier channel to 101 for channel reservation. After receiving and decoding the channel reservation request frame, 101 replies with a channel reservation response frame of the 40MHz carrier channel. After receiving and decoding the channel reservation response frame, 100 determines that one or more data frames of the 40 MHz carrier channel are currently being sent to 101 . 101 may reply with an ACK frame after receiving the data frame according to the indication of the control ...

Embodiment 2

[0074] With embodiment one, its difference is:

[0075] Figure 4100 sends the last data frame to 101 and asks 101 to reply with an ACK frame for confirmation. But 100 has not received the ACK confirmation frame of 101 to the last data frame in the PIFS time interval after sending the last data frame, then 100 sends a channel reservation request to 102 after sending the PIFS time interval after the last data frame frame. In addition, 100 performs CCA on the 80MHz carrier channel with the maximum carrier channel capacity agreed with 102 within the PIFS time interval before sending the channel reservation request frame to 102 . When the CCA detection result is idle, the idle state detection result of the carrier channel corresponding to the 100 side is idle; when the CCA detection result is busy, the idle state detection result of the corresponding carrier channel of the 100 side is busy. 100 sends the channel reservation request frame indicating idle carrier channel to 102 a...

Embodiment 3

[0077] With embodiment one, its difference is:

[0078] After 102 receives the channel reservation request frame of 100, within the PIFS time interval before receiving the channel reservation request frame, CCA detection is performed on all carrier channels indicated by the channel reservation request frame, for example, on the 80MHz carrier channel CCA detection.

[0079] When the CCA detection results on the 80MHz carrier channel are all idle, the 102 side carrier channel idle detection result is that the 80MHz carrier channel is idle, and 102 sends the channel of the 80MHz carrier channel to 100 after receiving the SIFS time interval after the channel reservation request frame Reservation response frame.

[0080] When the CCA detection result is busy, then 102 further detects whether the ACK frame is received and correctly decoded on the busy carrier channel containing the CCA detection in the PIFS time interval before receiving the channel reservation request frame; if no...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method and a system for realizing large-bandwidth carrier idle state detection. In both the method and the system, a transmitting site and a plurality of receiving sites perform the carrier channel idle state detection to respectively determine the channel bandwidth and the time occupied by performing one or more data packets interaction by the transmitting site and each receiving site, a transmission opportunity in a large-bandwidth system is fully used, the precondition for different receiving sites to respectively perform channel reservation with the transmitting site in one transmission opportunity is ensured, and the frequency spectrum utilization efficiency in the large-bandwidth system is improved.

Description

technical field [0001] The invention relates to the communication field, in particular to a method and system for realizing the idle state detection of a large bandwidth carrier. Background technique [0002] At present, in the wireless network field, the wireless local area network (WLAN) develops rapidly, the demand for WLAN coverage is increasing day by day, and the requirement for throughput is also getting higher and higher. In the IEEE802.11 group of the Institute of Electrical and Electronics Engineers industry specification, a series of standards such as 802.11a, 802.11b, 802.11g, etc. have been defined successively. Specifications for technical improvement, for example, the 802.11n task group puts forward the requirement of high throughput (High throughput, HT), supporting a data rate up to 600Mbps, and the 802.11ac task group further proposes the concept of VHT (Very High throughput), by introducing a larger The channel bandwidth increases the data rate to 1Gbps. ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H04W24/02H04W24/08
Inventor 孙波吕开颖李楠李峰张力
Owner ZTE CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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