Unlock instant, AI-driven research and patent intelligence for your innovation.

Wireless communication device and wireless communication method

A technology of a wireless communication device and a communication group, which is applied in the directions of wireless communication, transmission path separation device, transmission path sub-channel allocation, etc., and can solve problems such as reduced channel utilization efficiency

Active Publication Date: 2020-10-09
INT SEMICON GRP
View PDF13 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, when using a channel with a width of 80 MHz or more, and when accommodating the above-mentioned standard-compliant terminal as a legacy terminal, when using a channel width of 80 MHz or a channel width of 160 MHz in the legacy terminal, especially a statically compatible terminal, There is a possibility of reducing the channel utilization efficiency in the system as a whole
[0005] Therefore, in order to maintain a high level of channel utilization efficiency in the entire system, it is desired to limit the bandwidth usage of at least legacy and static terminals. means of working

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
  • Wireless communication device and wireless communication method
  • Wireless communication device and wireless communication method
  • Wireless communication device and wireless communication method

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0049] figure 1 A functional block diagram of the wireless communication device according to the first embodiment is shown. This wireless communication device can be installed in a wireless communication base station or a wireless communication terminal that communicates with the wireless communication base station. A wireless communication base station (hereinafter referred to as a base station) has the same function as a wireless communication terminal (hereinafter referred to as a terminal) in addition to having a relay function, and thus is one form of a terminal. Basically, the functions of this embodiment can be implemented by either a base station or a non-base station terminal. When referring to a terminal in the following description, the base station may also be included as long as there is no need to distinguish between the two.

[0050]In this embodiment, assume the following situation: the base station allocates multiple channels to multiple terminals other than ...

no. 2 Embodiment approach

[0160] The first embodiment shows that by limiting the channel width of legacy terminals (IEEE 802.11n, IEEE 802.11ac compliant terminals), high channel utilization efficiency of the system is maintained during MU-MC communication. In this embodiment, it is shown that it is necessary to determine the limitation of the channel width of the legacy terminal, and restrict the channel width of the legacy terminal as necessary.

[0161] The base station judges the limitation of the channel width of the legacy terminal according to the channel width used in the MU-MC communication (or the channel width used in the system). Specifically, it is determined whether to limit the channel width of the legacy terminal based on the channel width used in MU-MC communication and the channel width that the legacy terminal can handle. The timing of the determination takes into account any timing at or after the start of the system.

[0162] Here, in the case of determination at the time of syste...

no. 3 Embodiment approach

[0166] In this embodiment, according to the instruction information of the user, it is judged whether the channel width used by the terminal of the old version can be limited. The user sets instruction information in consideration of, for example, the use of the group (BSS) of the wireless network. For example, when it can be expected that legacy terminals will occupy a large number of users, set information that does not limit the channel width, and when it is expected that MU-MC compatible terminals will occupy a large number, set information that indicates that channel width should be restricted. . The instruction information of the user can be notified to the MAC / PHY management department of the base station via, for example, MIB (Management Information Base, management information base) and MLME (MAC subLayer Management Entity, MAC sublayer management entity) SAP (Service Access Point, service access point) 60.

[0167] For example, it is assumed that the instruction in...

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

Improve channel utilization efficiency in the system as a whole. An integrated circuit for wireless communication as an aspect of the present invention includes a baseband integrated circuit. The baseband integrated circuit transmits, via the RF integrated circuit, first information specifying a first bandwidth that is smaller than a maximum bandwidth that can be extended and utilized based on a predetermined channel, and transmits, via the RF integrated circuit, specified information included in the maximum bandwidth. Second information on a plurality of channels of at least one channel among the plurality of channels used in the bandwidth that is different from the channel used in the first bandwidth.

Description

technical field [0001] Embodiments of the present invention relate to an integrated circuit for wireless communication. Background technique [0002] There are standards for extending the channel width to 40 MHz, 80 MHz, or 160 MHz based on the 20 MHz reference channel. In this standard, as a method of bandwidth operation (bandwidth operation), there are the following methods: a method called dynamic (dynamic), which returns a response with the largest channel width judged to be non-interfering based on the reference channel; and if It is called a static method that does not return a response (that is, the channel cannot be acquired) if there is interference in any one of the one or more channels used for transmission of the received frame. In addition, terminals of the above-mentioned standards must cope with widths up to 80MHz. [0003] On the other hand, there is OFDMA (Orthogonal Frequency Division Multiple Access, Orthogonal Frequency Division Multiple Access) or MU-M...

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
Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/04H04W48/10H04W74/02H04W84/12
CPCH04W84/12H04W72/0453H04L5/0023H04L5/0064H04L5/0092H04L5/0039H04W8/22H04W28/20H04W72/23H04W48/10H04B17/345H04L5/0007
Inventor 足立朋子松尾绫子旦代智哉
Owner INT SEMICON GRP