CN101557330B - Method, system and terminals supporting power saving mode - Google Patents
Method, system and terminals supporting power saving mode Download PDFInfo
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- CN101557330B CN101557330B CN2008100889513A CN200810088951A CN101557330B CN 101557330 B CN101557330 B CN 101557330B CN 2008100889513 A CN2008100889513 A CN 2008100889513A CN 200810088951 A CN200810088951 A CN 200810088951A CN 101557330 B CN101557330 B CN 101557330B
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- 230000002618 waking effect Effects 0.000 abstract description 8
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/12—Arrangements for remote connection or disconnection of substations or of equipment thereof
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal 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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Abstract
The embodiment of the invention discloses a method, a system and terminals supporting a power saving mode. The method supporting the power saving mode comprises the following steps: a first terminal sends a first message to the second terminal through an access point path and is in a waking state, and the first terminal receives a second message returned by the second terminal and then sends data to the second terminal. The embodiment of the invention provides the method supporting the power saving mode for the two terminals directly connected with each other and reduces the electricity consumption of the terminals in a direct connection state through a power saving mechanism during the direct connection.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of method, system and terminal of supporting battery saving mode.
Background technology
Website of the prior art has two kinds of mode of operation: Active (work) pattern, Power save (power saving) pattern.When website is in the Active pattern, can normally receive and send data; When website is in two kinds of operating state: AWAKE (reviving) states and dozes (dormancy) state are arranged under the Power save pattern;, website can normally receive and send data when being in the AWAKE state; When website is in the dozes state, can not receive and send data, be low power consumpting state.
Power-saving mechanism PSM in the Infrastructure network (Power Saving Mechanism, power-saving mechanism) is: when a website hopes to get into energy saver mode, and the AP that should give advance notice (Access point, access point); And AP keeps in the data that mail to this website through buffering area, and is transmitted to this website in the suitable moment.AP regularly sends the beacon frame that comprises TIM (Traffic indication Map, professional indicator diagram), and which website of indication has been kept in data to be received among this TIM in AP.Utilize synchronization mechanism; Each website that works in energy saver mode can regularly be revived; Whether with received beacon frame and inquire about TIM, checking has data to need to receive, and can make each website that works in energy saver mode be temporary in the data of its buffering area to the AP request through polling mechanism.
Among the power-saving mechanism PSM among the Ad-hoc (self-organizing grouping wireless network); Time is divided into beacon interval (beacon interval) one by one, begins at each beacon interval, and each node all will be revived; And at an ATIM (Announcement Traffic indication Message; The broadcasting service Indication message) keeps the AWAKE state in the time of window,, must in the ATIM window, send the ATIM frame and give destination node if this node has packet to send; Then; After whole beacon interval keeps AWAKE state, destination node to receive the ATIM frame, will send an ACK and give source node, and in beacon interval, keep the AWAKE state; The source node of receiving ACK will send packet with normal DCF (Distributed Coordination Function, distributed coordination function) mode after the ATIM window finishes.If do not receive ACK, source node will resend the ATIM frame at next ATIM window, up to surpassing preset transmission number of times.Also do not receive the ATIM frame if having packet to send at the ATIM window, node can get into the dozes state when the ATIM window finishes, up to next beaconinterval.
In the prior art, two WIFI (Wireless Fidelity, the Wireless Fidelity) terminal room that is connected on the same AP carries out interacting message through the data channel that AP provides, thereby sets up direct channel.Because the interactive messages in the process set up of two terminal room direct channels is to be encapsulated in the Frame of two terminals through the communication channel transmission of AP to transmit; So it is transparent to AP that direct channel is set up process; So be called TDLS (Tunneled Direct Link Setup again; The direct-connected pattern of setting up in tunnel), it is as shown in Figure 1 that it sets up process, may further comprise the steps:
Step 102, STA2 returns TDLS to STA1 and sets up response message TDLS_Setup.Response;
Step 103, STA1 sends TDLS to STA2 and sets up affirmation TDLS_Setup.Confirm message, accomplishes the foundation of direct access path.
With tunnel direct-connected corresponding a kind of direct-connected the creating a mechanism in addition that create a mechanism be DLS (DirectLink Setup; The direct-connected process of setting up); Be the direct-connected foundation in non-tunnel, the message of setting up direct access path sends to distant terminal through the mode that AP resolves forwarding, and the process of setting up is visible to AP.After setting up direct-connected communication path, in order to obtain better communication effect, two terminals can switch to direct access path with the TS (Traffic stream, MPTS) that transmits through the AP path originally.
In realizing process of the present invention, the inventor finds to exist in the prior art following shortcoming:
In the prior art; The PSM at two terminals being in direct-connected state is not provided the mechanism of a support; But prescribed terminal must be in the Active pattern always when direct-connected, selects the mode of operation of power savings then need switch to the AP path by direct access path if be in two terminals of direct-connected state.Therefore, when using direct channel between two terminals, the terminal must be in the Active mode of operation always, has strengthened terminal electric quality consumption, especially for mobile portable terminal device especially one limit one of factor of its extensive use.
Summary of the invention
The embodiment of the invention provides a kind of method, system and terminal of supporting battery saving mode, realizes that two terminals that are in direct-connected state can work in the pattern of power saving.
The embodiment of the invention provides a kind of method of supporting battery saving mode, comprising:
First terminal is sent first message through the access point access point path to second terminal, and is in wake states;
After said first terminal receives second message of returning at said second terminal, send data to said second terminal.
The embodiment of the invention provides a kind of method of supporting battery saving mode, comprising:
Second terminal receives the trigger messages that send at first terminal through access point path;
Said second terminal is sent data through direct access path to said first terminal.
The embodiment of the invention provides a kind of system that supports battery saving mode, comprising:
Access point is used to first terminal and direct access path and access point path are set up in second terminal;
First terminal, be used to receive the message of sending through said access point path at second terminal after, send data through said direct access path to said second terminal;
Second terminal is used for sending said message through said access point path to said first terminal, is in wake states, and receives the data that send through said direct access path at said first terminal.
The embodiment of the invention provides a kind of transmission terminal of supporting battery saving mode, comprising:
The message sink unit is used to receive the message that send through said access point path at another terminal;
Data transmission unit is used for sending data through direct access path to said another terminal.
The embodiment of the invention provides a kind of receiving terminal of supporting battery saving mode, comprising:
Message sending unit is used for sending message to another terminal through access point path, and is in wake states;
The Data Receiving unit is used to receive the data that send through direct access path at said another terminal.
In the embodiments of the invention, be that two direct-connected terminals provide a kind of method of supporting battery saving mode, the electricity-saving mechanism when direct-connected has reduced terminal electric quality consumption under the direct-connected state.
Description of drawings
Fig. 1 sets up direct-connected communication path sketch map between two terminals in the prior art;
Fig. 2 is a kind of method flow diagram of supporting battery saving mode in the embodiment of the invention one;
Fig. 3 is a kind of method flow diagram of supporting battery saving mode in the embodiment of the invention two;
Fig. 4 is the method flow diagram that battery saving mode is supported at two terminals under the direct-connected pattern in a kind of tunnel in the embodiment of the invention three;
Fig. 5 is the method flow diagram that battery saving mode is supported at two terminals under the direct-connected pattern in non-tunnel in the embodiment of the invention three;
Fig. 6 is the method flow diagram that battery saving mode is supported at two terminals under the direct-connected pattern in tunnel in the embodiment of the invention four;
Fig. 7 is the method flow diagram that battery saving modes are supported at two terminals having set up direct-connected communication path through tunnel mode in the embodiment of the invention five;
Fig. 8 is a method flow diagram of supporting battery saving mode in the embodiment of the invention five;
Fig. 9 is a method flow diagram of supporting battery saving mode in the embodiment of the invention six;
Figure 10 is a kind of system construction drawing of supporting battery saving mode of the embodiment of the invention;
Figure 11 is the transmission terminal structure figure that supports battery saving mode in the embodiment of the invention;
Figure 12 is a receiving terminal structure chart of supporting battery saving mode in the embodiment of the invention.
Embodiment
The embodiment of the invention one provides a kind of method of supporting battery saving mode, and is as shown in Figure 2, comprising:
Before step 201, can also comprise: said first terminal and the said second terminal interaction battery saving mode parameter; Said first terminal also comprises after first message is sent at second terminal through the AP path; Said first terminal gets into resting state; Confirm the earliest time that second message at said second terminal arrives according to the said second terminal wake-up period parameter, and revive in the said time.
The embodiment of the invention two provides a kind of method of supporting battery saving mode, and is as shown in Figure 3, comprising:
In the embodiment of the invention three, a kind of method of supporting battery saving mode is provided, has supported to be in the battery saving mode at two terminals under the direct-connected pattern.Two terminal STA (Station of direct-connected communication path have been set up through tunnel mode; Website) 1 and STA2; When STA1 and STA2 worked in the battery saving mode of TIM mechanism simultaneously, if STA1 has data to send to STA2 through direct access path, then STA1 revived after T-TIM (Tunnel Traffic Indication Map is sent in the AP path; The tunnel traffic indicator diagram), is in the AWAKE state then and waits for PS-POLL (or getting into the dozes state after overtime again) from STA2 to STA2.STA2 receives STA1 behind the T-TIM that AP sends; Send PS-POLL and be in the AWAKE state to STA1 through direct access path; STA1 sends data through direct access path to STA2 after receiving PS-POLL, gets into the dozes state after data have been sent again and notifies STA2; Learn that after STA2 receives EOSP this data transfer finishes, get into the dozes state then.
In the embodiment of the invention three; In two direct-connected terminals one has the data need be when the other side sends; At first send T-TIM message to the other side through the AP path; No matter the other side is in the sort of mode of operation and can both receives this message through the AP path, thereby make distant terminal utilize PS-POLL to come request msg to send.Concrete process is as shown in Figure 4, comprising:
Step 401, STA1 has data when STA2 sends, and sends data through the AP path with the pattern in tunnel and sends Indication message T-TIM (first message) to STA2, and be in the AWAKE state.
Step 402 after STA2 receives T-TIM message through AP, is sent Data Receiving Indication message PS-POLL (second message) through direct access path to STA1, and is in the AWAKE state.
Step 403, STA1 receives after PS-POLL (first message) message and sends data to STA2, sends until data to finish or this transmission time uses up.STA2 receives and gets into the dozes state after data transmit end mark;
Wherein, STA1 receives PS-POLL (first message) afterwards in step 403, just sets up the direct access path of STA1 and STA2.
For two terminals under the direct-connected pattern in non-tunnel; Remove TIM message through the AP path and be and resolve the mode of transmitting through AP and send to STA2 (specifically comprise: AP receives the message that source terminal sends, and this message decapsulation is obtained the purpose terminal address, is packaged into new message according to this destination address then; Send to the purpose terminal) in addition; The direct-connected mode class in remaining process and tunnel seemingly, and is as shown in Figure 5, and whole process repeats no more at this.Wherein, EOSP (End Of Service Period, the business service phase finishes) is the DTD sign.
Preferably, in the embodiment of the invention four, a kind of method of supporting battery saving mode is provided.Can define battery saving mode parameter request message,, be used for sending T-TIM and before STA2, exchange the relevant parameter (as the TIM cycle parameter of waking up) of PS separately each other at STA1 like PS_Parameter.Request/PS_Parameter.Response.STA1 and STA2 can exchange the TIM cycle parameter of waking up separately before sending T-TIM message through the AP path; Send T-TIM at STA1 and behind STA2, needn't be in the ACTIVE state always to wait for the PS-POLL message of STA2; The TIM cycle parameter that can wake up according to STA2; Confirm the earliest time that the PS-POLL message of STA2 arrives, STA1 can get into dormancy after sending T-TIM, and can wake up in the earliest time that PS-POLL message possibly arrive and get final product.As shown in Figure 6, before said process, added the mutual of following twice message:
Step 601, the request message PS_Parameter.Request that its PS parameter information is carried in the STA1 transmission is to STA2.
Step 603 is identical to step 403 with the step 401 of embodiment one to step 605.
Except that above-mentioned definable PS_Parameter.Request/PS_Parameter.Response message is used for sending the T-TIM parameter (as the TIM cycle parameter of waking up) that exchange PS separately is relevant each other before STA2 at STA1; STA1 and STA2 be PS (Power Save separately; Power saving) exchange of relevant parameter (as the TIM cycle parameter of waking up) also can be set up message or path through direct access path and switched the reciprocal process of message (AP path-＞direct access path) and realize.Specifically can in TDLS_Setup.Request/Respons or TDLS DL Path Switch Request/Response and TDLS AP Path SwitchRequest/Response message, carry the relevant parameter (as the TIM cycle parameter of waking up) of PS separately.
In the embodiment of the invention five; Two terminal STA 1 and the STA2 of direct-connected communication path have been set up through tunnel mode; Work in the battery saving mode (PSM) of U-APSD (automatic power save of non-reservation transmits) mechanism simultaneously as STA1 and STA2; When STA1 will be when STA2 receives data, STA1 sends the trigger messages T-Trigger in tunnel at the AWAKE state through the AP path, and is in the data that the AWAKE state waits for that STA2 sends; (STA2 receives indication and receives this trigger messages through send out Trigger to AP) begins to send data to STA1 after STA2 receives this trigger messages through AP, sends until data to finish or this delivery time uses up.STA1 changes the dozes state over to after receiving the EOSP transmission end mark information from STA2 again.As shown in Figure 7, comprising:
Step 701 when STA1 requires STA2 to send data, is then sent trigger messages T-Trigger (the 3rd message) to STA2 through the AP path with the pattern in tunnel, and is in the AWAKE state;
Step 702, STA2 is sent as the STA1 data in buffer through direct access path to STA1 after receiving T-Trigger (the 3rd message) message through AP, sends until data to finish or this transmission time uses up, and gets into the Dozes state then; STA1 receives data until this DTD.
For two terminals under the direct-connected pattern in non-tunnel, except that the D-Trigger message through the AP path is to resolve the mode of transmitting through AP to send to the STA2, the direct-connected pattern situation in remaining process and tunnel is similar, can repeat no more at this with reference to figure 8.
Preferably; Definition PS_Parameter.Request/PS_Parameter.Response message is used for sending T-Trigger/D-Trigger to the relevant parameter (like the time started, service time, cycle etc.) of STA2 mutual before exchange PS separately at STA1 in the embodiment of the invention six.Message through redetermination; STA1 and STA2 can exchange preengage the time cycle parameter of waking up separately before sending T-Trigger/D-Trigger message through the AP path; Send T-Trigger/D-Trigger at STA1 and behind STA2, needn't be in the ACTIVE state always to wait for the data of STA2; Can preengage the time cycle parameter of waking up according to STA2; Confirm the earliest time that data that STA2 sends arrive, STA1 can get into dormancy after sending T-Trigger/D-Trigger, and the earliest time that can possibly arrive in the data that STA2 sends is waken up and got final product.As shown in Figure 9, before said process, added the mutual of following twice message:
Step 903 is identical to step 702 with step 701 to step 904.
Except that above-mentioned definable PS_Parameter.Request/PS_Parameter.Response message is used for sending T-Trigger/D-Trigger message to the STA2 parameter that exchange PS separately is relevant each other before at STA1; For the 802.11z standard; The exchange of STA1 and STA2 PS relevant parameter separately also can be set up message or path through direct access path and switched the reciprocal process of message (AP path-＞direct access path) and realize.The concrete relevant parameter of PS of in TDLS_Setup.Request/Respons or TDLS DL Path SwitchRequest/Response and TDLS AP Path Switch Request/Response, carrying exactly separately.
The embodiment of the invention provides a kind of system that supports battery saving mode, and is shown in figure 10, comprising: access point 100 is used to first terminal and direct access path and access point path are set up in second terminal; First terminal 200, be used to receive the message of sending through said access point path at second terminal after, send data through said direct access path to said second terminal; Second terminal 300 is used for sending said message through said access point path to said first terminal, is in wake states, and receives the data that send through said direct access path at said first terminal.Wherein, to receive the message of sending through said access point path at second terminal be response message or trigger messages at first terminal.
Wherein, support the transmission terminal (first terminal) 200 of battery saving mode, shown in figure 11, comprising: message sink unit 210 is used to receive the message that send through said access point path at another terminal; Data transmission unit 220 is used for sending data through direct access path to said another terminal.
The message that said message sink unit 210 receives is response message, and said transmission terminal 200 also comprises: request transmitting unit 230 is used for sending a request message to said another terminal through access point path, and is in wake states.
Said transmission terminal 200 also comprises: status unit 240 is used for after the data transmission finishes, sending data to said another terminal and transmitting end mark, and gets into resting state.
Said transmission terminal 200 also comprises: parameter interactive unit 250 is used for and said another terminal interaction battery saving mode parameter; Timing control unit 260 is used for through access point path after message is sent at said another terminal, getting into resting state, confirms the earliest time that the message at said another terminal arrives according to the wake-up period parameter at said another terminal, and revives in the said time.
Wherein, support the receiving terminal (second terminal) 300 of battery saving mode, shown in figure 12, comprising: message sending unit 310 is used for sending message to another terminal through access point path, and is in wake states; Data Receiving unit 320 is used to receive the data that send through direct access path at said another terminal.
The message that said message sending unit is sent is response message, and said receiving terminal 300 also comprises: request receiving element 330 is used for receiving said another terminal through access point path and sends a request message.
Said receiving terminal 300 also comprises: status unit 340 after being used to receive the data transmission end mark of said another terminal transmission, gets into resting state.
In the embodiments of the invention, be that two direct-connected terminals provide a kind of method of supporting battery saving mode, the electricity-saving mechanism when direct-connected has reduced terminal electric quality consumption under the direct-connected state.
Through the description of above execution mode, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform, can certainly pass through hardware, but the former is better execution mode under a lot of situation.Based on such understanding; The part that technical scheme of the present invention contributes to prior art in essence in other words can be come out with the embodied of software product; This computer software product is stored in the storage medium; Comprise some instructions with so that computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
More than disclosedly be merely several specific embodiment of the present invention, still, the present invention is not limited thereto, any those skilled in the art can think variation all should fall into protection scope of the present invention.
Claims (9)
1. a method of supporting battery saving mode is characterized in that, comprising:
First terminal is sent first message through access point path to second terminal, and is in wake states;
Said first terminal also comprised before first message is sent at second terminal through access point path:
Said first terminal and the said second terminal interaction battery saving mode parameter,
Said first terminal also comprises after first message is sent at second terminal through access point path,
Said first terminal gets into resting state, confirms the earliest time that second message at said second terminal arrives according to the said second terminal wake-up period parameter, and revives in the said time;
After said first terminal receives second message of returning at said second terminal, send data to said second terminal.
2. support the method for battery saving mode according to claim 1, it is characterized in that, also comprise:
Said first terminal is sent data to said second terminal and is transmitted end mark after the data transmission finishes, and gets into resting state.
3. like the method for each said support battery saving mode in the claim 1 to 2, it is characterized in that said first message is for sending Indication message through access point path with the direct-connected data of setting up the pattern transmission in tunnel; Said second message is the Data Receiving Indication message.
4. a system that supports battery saving mode is characterized in that, comprising:
Access point is used to first terminal and direct access path and access point path are set up in second terminal;
First terminal, be used to receive the message of sending through said access point path at second terminal after, send data through said direct access path to said second terminal, specifically comprise:
The parameter interactive unit is used for and the said second terminal interaction battery saving mode parameter;
The message sink unit is used to receive the message that send through access point path at said second terminal;
The timing control unit is used for through access point path after message is sent at said second terminal, getting into resting state, confirms the earliest time that the message at said second terminal arrives according to the wake-up period parameter at said second terminal, and revives in the said time;
Data transmission unit is used for sending data through direct access path to said second terminal;
Second terminal is used for sending said message through said access point path to said first terminal, is in wake states, and receives said first terminal through the data that said direct access path sends, and specifically comprises:
Message sending unit is used for sending message to said first terminal through access point path, and is in wake states;
The Data Receiving unit is used to receive the data that send through direct access path at said first terminal;
The request receiving element is used for receiving said first terminal through access point path and sends a request message;
Status unit after being used to receive the data transmission end mark of said first terminal transmission, gets into resting state.
5. like the system of the said support battery saving mode of claim 4, it is characterized in that it is response message or trigger messages that said first terminal receives the message of sending through said access point path at second terminal.
6. a transmission terminal of supporting battery saving mode is characterized in that, comprising:
The parameter interactive unit is used for and another terminal interaction battery saving mode parameter;
The message sink unit is used to receive the message that send through access point path at said another terminal;
The timing control unit is used for through access point path after message is sent at said another terminal, getting into resting state, confirms the earliest time that the message at said another terminal arrives according to the wake-up period parameter at said another terminal, and revives in the said time;
Data transmission unit is used for sending data through direct access path to said another terminal.
7. like the transmission terminal of the said support battery saving mode of claim 6, it is characterized in that the message that said message sink unit receives is response message or trigger messages.
8. like the transmission terminal of the said support battery saving mode of claim 6, it is characterized in that the message that said message sink unit receives is response message, said terminal also comprises:
Request transmitting unit is used for sending a request message to said another terminal through access point path, and is in wake states.
9. like the transmission terminal of the said support battery saving mode of claim 6, it is characterized in that, also comprise:
Status unit is used for after the data transmission finishes, sending data to said another terminal and transmitting end mark, and gets into resting state.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100889513A CN101557330B (en) | 2008-04-08 | 2008-04-08 | Method, system and terminals supporting power saving mode |
| PCT/CN2009/070824 WO2009124475A1 (en) | 2008-04-08 | 2009-03-17 | A method, a system and a terminal of supporting working in a power-saving mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100889513A CN101557330B (en) | 2008-04-08 | 2008-04-08 | Method, system and terminals supporting power saving mode |
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| CN101557330A CN101557330A (en) | 2009-10-14 |
| CN101557330B true CN101557330B (en) | 2012-08-15 |
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| WO (1) | WO2009124475A1 (en) |
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| EP2341738B1 (en) | 2009-12-29 | 2017-03-29 | Lg Electronics Inc. | Mobile terminal with Wi-Fi module operating in a power saving mode and providing an AP function and a method for controlling said terminal |
| EP2844016B1 (en) * | 2012-02-15 | 2018-11-07 | LG Electronics Inc. | Channel access method in wireless communication system and apparatus therefor |
| JP6032708B2 (en) * | 2013-03-08 | 2016-11-30 | シャープ株式会社 | Wireless communication apparatus and communication system |
| CN104349283A (en) * | 2013-08-07 | 2015-02-11 | 王方淇 | Information processing method, terminal and information processing system |
| CN106856587A (en) * | 2015-12-08 | 2017-06-16 | 展讯通信（上海）有限公司 | The direct-connected data transmission method in tunnel, apparatus and system |
| CN107645586A (en) * | 2016-07-20 | 2018-01-30 | 中兴通讯股份有限公司 | Data transmission method and device, state information processing method and device |
| CN110740494A (en) * | 2018-07-19 | 2020-01-31 | 阿里巴巴集团控股有限公司 | Data transmission method and system |
| SG10201906255QA (en) * | 2019-07-04 | 2021-02-25 | Panasonic Ip Corp America | Communication apparatus and communication method for enhanced direct link communication |
| CN115943728A (en) * | 2021-08-04 | 2023-04-07 | 北京小米移动软件有限公司 | Communication method and communication device |
| CN114363999B (en) * | 2021-12-10 | 2023-10-03 | 天翼物联科技有限公司 | Method, device and storage medium for sending downlink instructions of Internet of things |
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| WO2004077718A2 (en) * | 2003-02-27 | 2004-09-10 | Koninklijke Philips Electronics, N.V. | Apparatus and method to optimize power management in an independent basis service set of a wireless local area network |
| CN1553660A (en) * | 2003-05-26 | 2004-12-08 | ��Ϊ��������˾ | Authentication for wireless package domain lateral activation |
| WO2006081123A2 (en) * | 2005-01-25 | 2006-08-03 | Interdigital Technology Corporation | Peer-to-peer wireless communication system |
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| JP2006518141A (en) * | 2003-02-13 | 2006-08-03 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Maintaining synchronization between QoS access points and QoS stations in IEEE 802.11 EWLAN |
| US7801092B2 (en) * | 2003-03-21 | 2010-09-21 | Cisco Technology, Inc. | Method for a simple 802.11e HCF implementation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004077718A2 (en) * | 2003-02-27 | 2004-09-10 | Koninklijke Philips Electronics, N.V. | Apparatus and method to optimize power management in an independent basis service set of a wireless local area network |
| CN1553660A (en) * | 2003-05-26 | 2004-12-08 | ��Ϊ��������˾ | Authentication for wireless package domain lateral activation |
| WO2006081123A2 (en) * | 2005-01-25 | 2006-08-03 | Interdigital Technology Corporation | Peer-to-peer wireless communication system |
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| WO2009124475A1 (en) | 2009-10-15 |
| CN101557330A (en) | 2009-10-14 |
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