CN112954447A - Method for following channel under Miracast background resident condition - Google Patents
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- CN112954447A CN112954447A CN202110112820.XA CN202110112820A CN112954447A CN 112954447 A CN112954447 A CN 112954447A CN 202110112820 A CN202110112820 A CN 202110112820A CN 112954447 A CN112954447 A CN 112954447A
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000001788 irregular Effects 0.000 claims description 2
- 238000005266 casting Methods 0.000 claims 1
- 239000002699 waste material Substances 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 10
- 238000012544 monitoring process Methods 0.000 description 9
- 230000002452 interceptive effect Effects 0.000 description 8
- 230000003993 interaction Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/4363—Adapting the video stream to a specific local network, e.g. a Bluetooth® network
- H04N21/43637—Adapting the video stream to a specific local network, e.g. a Bluetooth® network involving a wireless protocol, e.g. Bluetooth, RF or wireless LAN [IEEE 802.11]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/4104—Peripherals receiving signals from specially adapted client devices
- H04N21/4122—Peripherals receiving signals from specially adapted client devices additional display device, e.g. video projector
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/4104—Peripherals receiving signals from specially adapted client devices
- H04N21/4126—The peripheral being portable, e.g. PDAs or mobile phones
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/632—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing using a connection between clients on a wide area network, e.g. setting up a peer-to-peer communication via Internet for retrieving video segments from the hard-disk of other client devices
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Transforming Electric Information Into Light Information (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention relates to the technical field of screen projection, and provides a method for following a Miracast background resident channel, which aims to reasonably utilize resources, avoid channel resource waste caused by channel over-switching and improve the working efficiency between an STA and P2P, and comprises the following steps: miracast listening stage: the television end monitors a working channel of a channel following the STA mode of the television end Wi-Fi module; and (3) screen projection working stage: the Miracast working channel follows the working channel of the STA mode of the Wi-Fi module of the television. By adopting the mode, the searching time during screen projection matching can be reduced, so that the defect of channel resource waste of the smart television under the Miracast background resident function can be greatly solved without changing the inherent Wi-Fi resource of the smart television, and the working efficiency between the STA and the P2P is improved.
Description
Technical Field
The invention relates to the technical field of screen projection, in particular to a method for following a channel in a Miracast background resident environment.
Background
Miracast screen projection (P2P screen projection) is a protocol for wireless screen projection among different electronic devices (such as televisions, smart phones and computers), and is promoted in 2012, and is obviously characterized in that in the Miracast specification, the device is divided into two parts, one part is called a transmission end GO-Group Owner, is a virtual role, and actually corresponds to a certain P2P server, which is similar to an AP in an infrastructured BSS, and can select information such as a working channel during Miracast screen projection; the other part is called the receiving end GC-P2P Client, a virtual role opposite to GO, which is similar to STA in Infrastructure BSS.
For television equipment, the application scene is most often screen projection interaction with a mobile phone or a computer. The screen projection modes are roughly divided into three types, namely Miracast screen projection, DLNA screen projection and screen projection by the proprietary protocol of part manufacturers including AirPlay. Various screen projection modes respectively have merits and disadvantages, most of Miracast screen projection functions in the current market all need to open specific APK at a television end, so that the television enters a monitoring state, a screen projection interface also needs to be opened at a mobile phone end to search television equipment, and the television end and the mobile phone end search each other to perform subsequent interactive connection. In order to simplify the series of operations and give customers better and faster Miracast screen projection experience, a Miracast background resident function is developed and applied to part of televisions at present. However, due to the fact that inherent resources of a single Wi-Fi module carried by the smart television are limited, the Miracast background resident function performs frequent switching of a monitoring channel of P2P in the STA mode of the television end Wi-Fi module, and the problem of network connection coexistence under the STA channel of the television end Wi-Fi module when the television end Miracast works, work efficiency between the STA and the P2P is low.
Disclosure of Invention
In order to reasonably utilize resources, avoid channel resource waste caused by channel over-switching and improve the working efficiency between the STA and the P2P, the invention provides a method for following a Miracast background resident channel.
The technical scheme adopted by the invention for solving the problems is as follows:
a method for channel following under Miracast background resident comprises the following steps:
miracast listening stage: the television end monitors a working channel of a channel following the STA mode of the television end Wi-Fi module;
and (3) screen projection working stage: the Miracast working channel follows the working channel of the STA mode of the Wi-Fi module of the television.
Further, in the Miracast monitoring stage, when the STA mode of the Wi-Fi module of the television end operates on a conventional channel of a 2.4G frequency band, the television end monitors the channel to follow the conventional channel of the AP to which the channel is connected; when the STA mode of the Wi-Fi module at the television end works on an unconventional channel of a 2.4G frequency band or a 5G frequency band channel, channel following is not carried out.
Further, when the STA mode of the Wi-Fi module of the tv end operates on an irregular channel of a 2.4G band or a 5G band channel, the tv end monitors that the channel is fixed to the scanning start channel.
Further, in the screen projection working phase, when the television end supports a 2.4G frequency band and is a transmission end, the Miracast working channel follows the working channel of the STA mode of the Wi-Fi module of the television end; when the television end supports double frequency, the STA channel is a 5G frequency band, the television end is a transmitting end, and the equipment interacting with the television end supports the 5G frequency band, the Miracast working channel follows the working channel of the STA mode of the Wi-Fi module of the television end.
Compared with the prior art, the invention has the beneficial effects that: according to the method, the whole screen projection scheme is divided into a Miracast monitoring stage and a screen projection working stage, different channel following schemes are respectively set, and searching time during screen projection matching is reduced through channel following, so that the defect of channel resource waste of the smart television under the Miracast background resident function is greatly overcome without changing the inherent Wi-Fi resource of the smart television, and the working efficiency between the STA and the P2P is improved.
Drawings
FIG. 1 is a schematic view of the process of the present invention;
FIG. 2 is a schematic diagram of channel following during Miracast listening phase;
fig. 3 and 4 are schematic diagrams of following channels with different specifications in the screen projection working stage.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, a method for channel following in Miracast background resident includes:
miracast listening stage: the television end monitors a working channel of a channel following the STA mode of the television end Wi-Fi module;
and (3) screen projection working stage: the Miracast working channel follows the working channel of the STA mode of the Wi-Fi module of the television.
Specifically, as shown in fig. 2, in the Miracast monitoring stage, when the STA mode of the Wi-Fi module of the tv end operates on three conventional channels of 2.4G frequency bands, i.e., 1, 6, and 11, the tv end monitors the conventional channel of the channel, which is connected to the AP, following the conventional channel; when the STA mode of the Wi-Fi module at the tv end operates in an unconventional channel (2, 3, 4, 5, 7, 8, 9, 10, 12, 13 channels) of a 2.4G band or a 5G band channel, channel following is not performed, and at this time, a monitoring channel at the tv end is fixed to a scanning start channel, for example: when the screen is projected, the screen projection interactive equipment firstly searches channels 1 to 13 for the television side monitoring channel in sequence, and then fixes the television side monitoring channel to the channel 1. For ease of understanding, the following is presented in tabular form.
The searching speed of the screen projection interaction equipment can be increased by setting the channel following or fixing the monitoring channel on the scanning starting channel, so that the working efficiency between the STA and the P2P is improved.
As shown in fig. 3 and 4, in the screen projection working phase, when the tv supports the 2.4G frequency band and the tv is a transmitting end, the Miracast working channel follows the working channel of the STA mode of the Wi-Fi module of the tv; when the television end supports double frequency, the STA channel is a 5G frequency band, the television end is a transmitting end, and the equipment interacting with the television end supports the 5G frequency band, the Miracast working channel follows the working channel of the STA mode of the Wi-Fi module of the television end.
The situation can be divided into four types according to the specifications of television end and screen projection interactive equipment: a single frequency-single frequency, a single frequency-double frequency, a double frequency-single frequency, and a double frequency-double frequency are described below with reference to the table.
1. Single frequency-single frequency: if the television end and the screen projection interactive device both support the 2.4G frequency band:
firstly, when a television end acts as a transmission end (GO) in the negotiation process of the television end and the transmission end, the television end can select a Miracast working channel of the television end and the Miracast working channel to follow an STA working channel of a Wi-Fi module of the television end;
secondly, when the television end is used as a receiving end (GC) in the negotiation process of the television end and the television end, the Miracast working channels of the television end and the Miracast working channels are determined by equipment which is in screen projection interaction with the television, and channel following is not performed at the moment.
2. Single-double frequency: if the television end only supports the 2.4G frequency band and the screen projection interactive device supports the 2.4G and 5G frequency bands:
firstly, when a television end acts as a transmission end (GO) in the negotiation process of the television end and the transmission end, the television end can select a Miracast working channel of the television end and the Miracast working channel to follow an STA working channel of a Wi-Fi module of the television end;
secondly, when the television end is used as a receiving end (GC) in the negotiation process of the television end and the television end, the Miracast working channels of the television end and the Miracast working channels are determined by equipment which is in screen projection interaction with the television, and channel following is not performed at the moment.
3. Dual-single frequency: if the television end supports 2.4G and 5G frequency bands and the screen projection interactive device only supports the 2.4G frequency band:
firstly, when a television end is connected with an AP of any channel of a 2.4G frequency band and serves as a transmission end (GO) in a negotiation process of the AP and the AP, the television end can select a Miracast working channel of the AP and the AP to follow an STA working channel of the 2.4G frequency band of a Wi-Fi module of the television end;
secondly, when the television end is connected with the AP of any channel of the 2.4G frequency band and is used as a receiving end (GC) in the negotiation process of the AP and the AP, the Miracast working channels of the AP and the GC are determined by a device which is in screen projection interaction with the television Miracast, and channel following is not performed at the moment;
thirdly, when the television end is connected with the AP of any channel of the 5G frequency band and is used as a transmission end (GO) in the negotiation process of the AP and the AP, the device interacted with the Miracast does not support the 5G frequency band, so that the working channel of the television end can be selected to be a conventional channel of the 2.4G frequency band, and the channel following is not performed at the moment;
when the television end is connected with the AP of any channel of the 5G frequency band and is used as a receiving end (GC) in the negotiation process of the AP and the AP, the Miracast working channels of the AP and the GC are determined by a device which is interactive with the Miracast screen projection of the television, and the channel following is not carried out at the moment.
4. Dual-band-dual-band: if the television side and the screen projection interactive device simultaneously support 2.4G and 5G frequency bands:
firstly, when a television end acts as a transmission end (GO) in the negotiation process of the television end and the transmission end, the television end can select a Miracast working channel of the television end and the Miracast working channel to follow an STA working channel of a Wi-Fi module of the television end;
secondly, when the television end is used as a receiving end (GC) in the negotiation process of the television end and the television end, the Miracast working channels of the television end and the Miracast working channels are determined by equipment which is in screen projection interaction with the television, and channel following is not performed at the moment.
Claims (4)
1. A method for channel following under Miracast background resident is characterized by comprising the following steps:
miracast listening stage: the television end monitors a working channel of a channel following the STA mode of the television end Wi-Fi module;
and (3) screen projection working stage: the Miracast working channel follows the working channel of the STA mode of the Wi-Fi module of the television.
2. The method of claim 1, wherein in the Miracast listening phase, when an STA mode of a tv Wi-Fi module operates on a conventional channel in a 2.4G band, the tv monitors the channel to follow the conventional channel to which the tv connects to an AP; when the STA mode of the Wi-Fi module at the television end works on an unconventional channel of a 2.4G frequency band or a 5G frequency band channel, channel following is not carried out.
3. The method as claimed in claim 2, wherein when the STA mode of the tv Wi-Fi module operates on an irregular channel of 2.4G band or a 5G band channel, the tv monitors that the channel is fixed to the scan start channel.
4. The method according to claim 1, wherein in the screen-casting working phase, when the tv supports a 2.4G band and the tv is a transmitter, the Miracast working channel follows a working channel of an STA mode of a Wi-Fi module of the tv; when the television end supports double frequency, the STA channel is a 5G frequency band, the television end is a transmitting end, and the equipment interacting with the television end supports the 5G frequency band, the Miracast working channel follows the working channel of the STA mode of the Wi-Fi module of the television end.
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Cited By (1)
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| CN114554262A (en) * | 2022-03-08 | 2022-05-27 | 四川长虹电器股份有限公司 | Method for projecting screen between mobile equipment and smart television |
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