CN116017291A - Communication system and method - Google Patents
Communication system and method Download PDFInfo
- Publication number
- CN116017291A CN116017291A CN202211729520.7A CN202211729520A CN116017291A CN 116017291 A CN116017291 A CN 116017291A CN 202211729520 A CN202211729520 A CN 202211729520A CN 116017291 A CN116017291 A CN 116017291A
- Authority
- CN
- China
- Prior art keywords
- terminal
- signal strength
- access
- group
- access request
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention relates to the field of communication, in particular to a communication system and a method, which realize that a terminal does not generate roaming action in the moving process in the coverage area of a specific wireless signal and realize zero roaming of the terminal under the condition that the terminal does not depend on supporting a specific protocol or a specific terminal and auxiliary app. The invention provides a communication method, which comprises the following steps: configuring a plurality of APs for the selected coverage area to form an AP group; the wireless parameters of all APs in the AP group are configured identically to achieve that the terminal does not generate roaming handoff due to movement within the coverage area. The radio parameters include channel, bandwidth, and BSSID. The invention is suitable for the terminal.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to a communication system and method.
Background
In a wlan, roaming refers to that a terminal starts data communication after accessing a wireless network covered by an AP (Access Point), and starts roaming when moving to another coverage of the AP, and the terminal considers that its handover condition is currently satisfied. Is a handoff behavior of a terminal between wireless access points. The purpose of roaming is to ensure that the terminal does not break communication (language and data) when switching between two wireless access points providing wireless services.
In the prior art, the following problems are generally encountered in the process of roaming a terminal:
1) The terminal roaming implementation depends on the terminal behavior more by judging and switching by means of the terminal algorithm, has larger relation with the terminal and network deployment, has uncontrollable behavior, and can cause the problems of packet loss and longer delay in most cases.
2) Roaming is assisted by using 802.11k, 802.11v and 802.11r protocols, which all require terminal protocol coordination, are strongly related to the terminal, and have compatibility problems with the terminal.
3) Roaming handover with a specific terminal or terminal app can only be tailored with a specific vendor, and there is a large limit to the use of users.
4) The roaming sensitivity of the terminal can be improved by adopting the beacon optimization mode, but the final roaming decision is still the terminal, and the problem of 1) still exists.
Disclosure of Invention
The invention aims to provide a communication system and a communication method, which realize that a terminal does not generate roaming action in the moving process in a selected wireless signal coverage area under the condition that the terminal does not depend on a specific protocol or a specific terminal and auxiliary app, and realize zero roaming of the terminal.
The invention adopts the following technical scheme to achieve the aim, and a communication system at least comprises a wireless controller AC (Access Controller, wireless controller) and a wireless access point AP;
the AC is used for configuring a plurality of APs for the selected coverage area to form an AP group;
the AC carries out the same configuration on the wireless parameters of all the APs in the AP group so as to realize that the terminal does not generate roaming switching because of movement in the coverage area; the radio parameters include channel, bandwidth, and BSSID. The BSSID is a unique identifier of a wireless network on the wireless access point, and is generally consistent with the MAC address of the wireless access point.
By configuring the channels, bandwidths and BSSIDs of a plurality of APs in the wireless signal coverage area in the same way, the terminal can realize that the terminal does not generate roaming action in the moving process in the specific wireless signal coverage area without depending on the terminal to support a specific protocol or a specific terminal and auxiliary app, and the zero roaming of the terminal is realized.
Further, the system also comprises a terminal,
the terminal is used for initiating an access authentication request;
the APs in the AP group are configured to receive the access authentication request and send the access authentication request and the corresponding terminal signal strength to the AC;
and the AC is used for selecting the AP with the strongest signal strength of the terminal to respond to the access authentication request and synchronizing the terminal access information to all other APs in the AP group.
By the method, the access of the terminal is realized, the access information of the terminal is synchronized to all other APs in the AP group, and the efficiency of the terminal access is improved.
Further, when the terminal initiates an access request to other terminals;
the terminal is used for sending an access request to the AP group;
the AP in the AP group is used for receiving the access request and sending the access request and the corresponding terminal signal strength to the AC;
the AC is configured to forward the access request to the other terminals, record AP information of all access requests uploaded by the terminals and corresponding terminal signal intensities by using the MAC address of the terminal as an index, and add the AP information of the access request of the terminals and the corresponding terminal signal intensities to a dynamic signal intensity table of APs in the terminal and the AP group.
By the method, the AP information of the access request of the terminal and the corresponding terminal signal strength are convenient to store, and the AP signal with the strongest terminal signal strength can be rapidly found.
Further, the forwarding the access request to the other terminal specifically includes:
and selecting the AP with the highest terminal signal strength corresponding to the other terminals in the dynamic signal strength table by taking the MAC address of the other terminals as an index, so as to send the access request to the other terminals through the AP with the highest terminal signal strength.
And the AP with the highest signal strength of the terminal is selected for data transmission, so that the low time delay of data transmission of the terminal under the condition of zero roaming is ensured.
Further, before the access request is sent to the other terminal through the AP with the highest terminal signal strength by selecting the AP with the highest terminal signal strength corresponding to the other terminal in the dynamic signal strength table by using the MAC address of the other terminal as an index,
the other terminals are used for sending the access request to the AP group;
the AP in the AP group is used for receiving the access request and sending the access request and the corresponding terminal signal strength to an AC;
and the AC is used for recording all the AP information of the access requests uploaded by the other terminals and the corresponding terminal signal strength by taking the MAC addresses of the other terminals as indexes, and adding the AP information of the access requests of the other terminals and the corresponding terminal signal strength to a dynamic signal strength table of the APs in the terminal and the AP group.
By the method, the AP information of the access requests of other terminals and the corresponding terminal signal intensity can be conveniently stored, and the AP signal with the strongest terminal signal intensity can be rapidly found.
A method of communication, the method comprising:
the AC configures a plurality of APs for the selected coverage area to form an AP group;
the AC performs the same configuration on the wireless parameters of all APs in the AP group, so as to realize that the terminal does not generate roaming handover due to movement in the coverage area. The wireless parameters comprise a channel, a bandwidth and a BSSID;
further, the method further comprises:
the terminal initiates an access authentication request;
the AP in the AP group receives the access authentication request and sends the access authentication request and the corresponding terminal signal strength to an AC;
and the AC selects the AP with the strongest signal strength of the terminal to respond to the access authentication request, and synchronizes the terminal access information to all other APs in the AP group.
Further, when the terminal initiates an access request to other terminals, the method includes:
the terminal sends an access request to the AP group;
the AP in the AP group receives the access request and sends the access request and the corresponding terminal signal strength to an AC;
the AC forwards the access request to the other terminals;
and the AC takes the MAC address of the terminal as an index to record all the AP information of the access request of the terminal and the corresponding signal strength of the terminal, and adds the AP information of the access request of the terminal and the corresponding signal strength of the terminal to a dynamic signal strength table of the APs in the terminal and the AP group.
Further, the AC forwards the access request to the other terminal, and the method includes:
and selecting the AP with the highest terminal signal strength corresponding to the other terminals in the dynamic signal strength table by taking the MAC address of the other terminals as an index, so as to send the access request to the other terminals through the AP with the highest terminal signal strength.
Further, before the step of selecting, in the dynamic signal strength table, the AP with the highest terminal signal strength corresponding to the other terminal by using the MAC address of the other terminal as an index, so as to send the access request to the other terminal through the AP with the highest terminal signal strength, the method further includes:
the other terminals send access requests to an AP group;
the AP in the AP group receives the access request and sends the access request and the corresponding terminal signal strength to an AC;
and the AC takes the MAC address of the other terminal as an index to record all the AP information of the access request of the other terminal and the corresponding terminal signal intensity, and adds the AP information of the access request of the other terminal and the corresponding terminal signal intensity to a dynamic signal intensity table of the APs in the terminal and the AP group.
The beneficial effects of the invention are as follows:
1) The invention only relates to the change of the data forwarding flow of the system, does not relate to the modification of the wireless protocol, does not depend on a terminal to support a specific protocol, does not depend on a specific terminal or auxiliary app, and has universal applicability;
2) On the receiving and transmitting package, the system always adopts an optimal channel to receive and transmit data, so that the zero roaming of the terminal can be ensured, and the low time delay of data transmission can be ensured;
3) The invention can meet the data transmission requirements of zero packet loss and low time delay.
Drawings
FIG. 1 is a flow chart of a communication method provided by an embodiment of the present invention;
fig. 2 is a flowchart of a terminal access method according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides a communication system, which at least comprises a wireless controller AC and a wireless access point AP;
an AC for configuring a plurality of APs for a selected coverage area, forming an AP group;
and the AC performs the same configuration on the wireless parameters of all the APs in the AP group so as to realize that the terminal does not generate roaming switching due to movement in the coverage area and realize zero roaming of the terminal. The wireless parameters include a channel, a bandwidth, and a BSSID, where the BSSID is a unique identifier of a wireless network on the wireless access point, and is generally consistent with the MAC address of the wireless access point.
By performing the same configuration on the channels, bandwidths and BSSIDs of the APs in the selected coverage area, the terminal can realize no roaming action in the mobile process in the coverage area of the specific wireless signal without depending on the terminal supporting the specific protocol or the specific terminal and the auxiliary app, and the zero roaming of the terminal can be realized.
In one embodiment of the invention, the system further comprises a terminal;
the terminal is used for initiating an access authentication request;
the AP in the AP group is used for receiving the access authentication request and sending the access authentication request and the corresponding terminal signal strength to the AC;
and the AC is used for selecting the AP with the strongest signal strength of the terminal, responding to the access authentication request and synchronizing the terminal access information to all other APs in the AP group.
By the method, the access of the terminal is realized, the access information of the terminal is synchronized to all other APs in the AP group, and the efficiency of the terminal access is improved.
In one embodiment of the present invention, when the terminal initiates an access request to other terminals;
the terminal is used for sending the access request to the AP group;
the AP in the AP group is used for receiving the access request and sending the access request and the corresponding terminal signal strength to the AC;
and the AC is used for forwarding the access request to other terminals, recording the AP information of the access requests of all uploading terminals and the corresponding terminal signal strength by taking the MAC address of the terminal as an index, and adding the AP information of the access requests of the terminals and the corresponding terminal signal strength to a dynamic signal strength table of the APs in the terminal and the AP group.
By the method, the AP information of the access request of the terminal and the corresponding terminal signal strength are convenient to store, and the AP signal with the strongest terminal signal strength can be rapidly found.
Specifically, forwarding the access request to the other terminal specifically includes:
and selecting the AP with the highest terminal signal strength corresponding to the other terminals in the dynamic signal strength table by taking the MAC addresses of the other terminals as indexes, so as to send the access request to the other terminals through the AP with the highest terminal signal strength.
And the data transmission is carried out through the AP with the highest signal strength of the terminal, so that the low time delay of the data transmission of the terminal under the condition of zero roaming is ensured.
In one embodiment of the present invention, before the AP with the highest terminal signal strength corresponding to the other terminal is selected in the dynamic signal strength table by using the MAC address of the other terminal as an index, so as to send the access request to the other terminal through the AP with the highest terminal signal strength,
other terminals for sending the access request to the AP group;
the AP in the AP group is used for receiving the access request and sending the access request and the corresponding terminal signal strength to the AC;
and the AC is used for recording the AP information of all the access requests uploaded by other terminals and the corresponding terminal signal strength by taking the MAC addresses of the other terminals as indexes, and adding the AP information of the access requests of the other terminals and the corresponding terminal signal strength to a dynamic signal strength table of the terminals and the APs in the AP group.
By the method, the AP information of the access request of the terminal and the corresponding terminal signal strength are convenient to store, and the AP signal with the strongest terminal signal strength can be rapidly found.
Based on the communication system of the above embodiment, the present invention further provides a communication method, as shown in fig. 1, where the method includes:
configuring a plurality of APs for the selected coverage area to form an AP group; the wireless parameters of all APs in the AP group are configured identically to achieve that the terminal does not generate roaming handoff due to movement within the coverage area. Wherein the wireless parameters include channel, bandwidth, and BSSID.
In one embodiment of the present invention, the terminal access flow is as shown in fig. 2, and the method further includes:
the terminal initiates an access authentication request;
an AP in the AP group receives an access authentication request and sends the access authentication request and corresponding terminal signal strength to an AC;
the AC selects the AP with the strongest signal strength of the terminal, responds to the access authentication request, and synchronizes the terminal access information to all other APs in the AP group.
In one embodiment of the present invention, when a terminal initiates an access request to another terminal, the method includes:
the terminal sends the access request to the AP group;
an AP in the AP group receives an access request and sends the access request and the corresponding terminal signal strength to an AC;
the AC forwards the access request to other terminals;
the AC takes the MAC address of the terminal as an index to record the AP information of all the access requests of the uploading terminal and the corresponding signal strength of the terminal, and adds the AP information of the access requests of the terminal and the corresponding signal strength of the terminal to a dynamic signal strength table of the terminal and the APs in the AP group.
In one embodiment of the present invention, the AC forwards the access request to the other terminal, specifically including:
and selecting the AP with the highest terminal signal strength corresponding to the other terminals in the dynamic signal strength table by taking the MAC addresses of the other terminals as indexes, so as to send the access request to the other terminals through the AP with the highest terminal signal strength.
In one embodiment of the present invention, before selecting an AP with highest terminal signal strength corresponding to another terminal in the dynamic signal strength table by using the MAC address of the other terminal as an index, so as to send an access request to the other terminal through the AP with highest terminal signal strength, the method further includes:
the other terminals send the access request to the AP group;
an AP in the AP group receives an access request and sends the access request and the corresponding terminal signal strength to an AC;
and the AC takes the MAC addresses of other terminals as indexes to record all the AP information of the access requests uploaded by the other terminals and the corresponding terminal signal intensity, and adds the AP information of the access requests of the other terminals and the corresponding terminal signal intensity to a dynamic signal intensity table of the terminals and the APs in the AP group.
The following is a further detailed description of the present invention with reference to specific examples.
The embodiment of the invention is suitable for a system of an AC+AP networking architecture, and the specific implementation process comprises three stages of system configuration, terminal access and data forwarding. And in the system configuration stage, the zero roaming coverage area is determined through configuration, and meanwhile, related wireless access point parameters are set. And the terminal access stage is used for completing the terminal access flow and the data transmission stage, and selecting the optimal path for terminal data transmission.
In the embodiment of the invention, when the system is deployed, a plurality of APs in the selected zero roaming area are configured to form an AP group. And deploying the zero roaming wireless service on the AP group. After the zero roaming wireless service is deployed, the AC configures the same wireless parameters of the AP in the AP group, namely the wireless parameters such as the channel, the bandwidth, the BSSID and the like are configured to be the same. So as to ensure that the terminal does not generate roaming action due to movement in the coverage area of the zero roaming service, and realize zero roaming of the terminal. And meanwhile, data transmission can be carried out in an optimal path at any time and any place.
In the terminal access stage, the terminal initiates an access authentication request, the AP receiving the access authentication request adds the terminal signal intensity of the corresponding terminal to the AC, and the AC selects the AP with the strongest terminal signal intensity to perform access authentication response and subsequent access processes. In the embodiment of the invention, the AP (negotiation AP) with the strongest signal intensity of the terminal selected by the AC and the terminal finish the access processes of authentication of the wireless network, data key negotiation and the like. After the terminal access is completed, negotiating an AP to report terminal access information (MAC address, data encryption key and the like) to an AC; the AC synchronizes the relevant information to all APs in the AP group to ensure that each AP has all the information of the terminal.
In the data transmission stage, the terminal initiates an access request, all APs receiving the access request of the terminal add the terminal signal intensity and then send the access request to the AC, the AC forwards the access request message which is first reached, and simultaneously records all the AP information of the access request and the terminal signal intensity reported by the APs, and a dynamic signal intensity table of the AP+terminal signal intensity is formed by taking the MAC address of the terminal as an index. When data is sent to the terminal, the AC selects an AP with highest current terminal signal strength according to the dynamic signal strength table to send the data so as to ensure that the data is sent to the terminal with the best quality.
In summary, the invention realizes that the terminal does not generate roaming action in the moving process in the coverage area of the specific wireless signal under the condition that the terminal does not depend on the specific protocol or the specific terminal and the auxiliary app, and ensures that the terminal does not generate packet loss due to roaming and simultaneously ensures low time delay of data transmission of the wireless terminal under the condition of zero roaming.
Claims (10)
1. A communication system, characterized in that the system comprises at least a radio controller AC and a radio access point AP,
the AC is used for configuring a plurality of APs for the selected coverage area to form an AP group;
the AC is configured to perform the same configuration on wireless parameters of all APs in the AP group, so as to prevent the terminal from generating roaming handover due to movement in the coverage area; the radio parameters include channel, bandwidth, and BSSID.
2. The communication system of claim 1, further comprising a terminal,
the terminal is used for initiating an access authentication request;
the APs in the AP group are configured to receive the access authentication request and send the access authentication request and the corresponding terminal signal strength to the AC;
and the AC is used for selecting the AP with the strongest signal strength of the terminal to respond to the access authentication request and synchronizing the terminal access information to all other APs in the AP group.
3. The communication system according to claim 2, wherein the terminal initiates the access request to the other terminal;
the terminal is used for sending an access request to the AP group;
the AP in the AP group is used for receiving the access request and sending the access request and the corresponding terminal signal strength to the AC;
the AC is configured to forward the access request to other terminals, record AP information of all access requests uploaded by the terminals and corresponding terminal signal strengths by using the MAC address of the terminal as an index, and add the AP information of the access requests of the terminals and the corresponding terminal signal strengths to a dynamic signal strength table of APs in the terminal and the AP group.
4. A communication system according to claim 3, characterized in that said forwarding of said access request to said other terminal comprises in particular:
and selecting the AP with the highest terminal signal strength corresponding to the other terminals in the dynamic signal strength table by taking the MAC address of the other terminals as an index, so as to send the access request to the other terminals through the AP with the highest terminal signal strength.
5. The communication system of claim 4, wherein, before the AP with the highest terminal signal strength corresponding to the other terminal is selected in the dynamic signal strength table by using the MAC address of the other terminal as an index to transmit the access request to the other terminal through the AP with the highest terminal signal strength,
the other terminals are used for sending the access request to the AP group;
the AP in the AP group is used for receiving the access request and sending the access request and the corresponding terminal signal strength to an AC;
and the AC is used for recording all the AP information of the access requests uploaded by the other terminals and the corresponding terminal signal strength by taking the MAC addresses of the other terminals as indexes, and adding the AP information of the access requests of the other terminals and the corresponding terminal signal strength to a dynamic signal strength table of the APs in the terminal and the AP group.
6. A communication method applied to the communication system of any one of claims 1-5, the method comprising:
the AC configures a plurality of APs for the selected coverage area to form an AP group;
the AC carries out the same configuration on the wireless parameters of all the APs in the AP group so as to realize that the terminal does not generate roaming switching because of movement in the coverage area; the radio parameters include channel, bandwidth, and BSSID.
7. The communication method according to claim 6, characterized in that the method further comprises:
the terminal initiates an access authentication request;
the AP in the AP group receives the access authentication request and sends the access authentication request and the corresponding terminal signal strength to an AC;
and the AC selects the AP with the strongest signal strength of the terminal to respond to the access authentication request, and synchronizes the terminal access information to all other APs in the AP group.
8. The communication method according to claim 6, wherein when the terminal initiates an access request to another terminal, the method comprises:
the terminal sends an access request to the AP group;
the AP in the AP group receives the access request and sends the access request and the corresponding terminal signal strength to an AC;
the AC forwards the access request to the other terminals;
and the AC takes the MAC address of the terminal as an index to record all the AP information of the access request of the terminal and the corresponding signal strength of the terminal, and adds the AP information of the access request of the terminal and the corresponding signal strength of the terminal to a dynamic signal strength table of the APs in the terminal and the AP group.
9. The communication method according to claim 8, wherein the AC forwards the access request to the other terminal, in particular comprising:
and selecting the AP with the highest terminal signal strength corresponding to the other terminals in the dynamic signal strength table by taking the MAC address of the other terminals as an index, so as to send the access request to the other terminals through the AP with the highest terminal signal strength.
10. The communication method according to claim 9, wherein before the step of selecting, in the dynamic signal strength table, the AP with the highest terminal signal strength corresponding to the other terminal with the MAC address of the other terminal as an index, to send the access request to the other terminal through the AP with the highest terminal signal strength, the method further comprises:
the other terminals send access requests to an AP group;
the AP in the AP group receives the access request and sends the access request and the corresponding terminal signal strength to an AC;
and the AC takes the MAC address of the other terminal as an index to record all the AP information of the access request of the other terminal and the corresponding terminal signal intensity, and adds the AP information of the access request of the other terminal and the corresponding terminal signal intensity to a dynamic signal intensity table of the APs in the terminal and the AP group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211729520.7A CN116017291A (en) | 2022-12-30 | 2022-12-30 | Communication system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211729520.7A CN116017291A (en) | 2022-12-30 | 2022-12-30 | Communication system and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116017291A true CN116017291A (en) | 2023-04-25 |
Family
ID=86024939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211729520.7A Pending CN116017291A (en) | 2022-12-30 | 2022-12-30 | Communication system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116017291A (en) |
-
2022
- 2022-12-30 CN CN202211729520.7A patent/CN116017291A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11558792B2 (en) | Method for handover between access points, and terminal equipment | |
| JP5335942B2 (en) | System and method for performing soft handoff between frequency division duplex and time division duplex communication systems | |
| US7372835B2 (en) | Handoff system and method of dual mode mobile for connecting mobile communication system and wireless network | |
| TWI411324B (en) | Base station, mobile station and method for operating the base station, mobile station and the communication network | |
| JP4729646B2 (en) | Mobile communication method, mobile switching center, radio base station, and mobile station | |
| EP1441469B1 (en) | Handoff method in wireless LAN, and access point and mobile station performing handoff method | |
| JP2016129406A (en) | Wireless communication method and component for executing handoff in wireless local area network | |
| EP2101535A1 (en) | Concurrent operation in multiple wireless local area networks | |
| WO2014000622A1 (en) | Switching method, system and device | |
| CN104822168A (en) | Guiding method and apparatus for frequency band switching of wireless terminal | |
| KR20140096631A (en) | Method and apparatus for scanning and selecting wlan network accessing a user equipment in a cell in mobile communication system | |
| WO2016049806A1 (en) | Distribution method and apparatus | |
| CA2752219C (en) | System and method of handling ip layer mobility in a wireless network | |
| US10986552B2 (en) | Connection establishment in a 5G radio access network | |
| KR101104597B1 (en) | Soft Switching Signaling Scheme for Gateway Interface between local area network and wide area network | |
| CN111556480A (en) | Method and system for sharing distributed network elements by multiple operators | |
| CN116017291A (en) | Communication system and method | |
| KR20050121118A (en) | Handoff system for relating cdma2000 with portable internet and method therof | |
| US10897727B2 (en) | Continuous wireless communication systems and associated methods | |
| WO2010030165A1 (en) | A device for vertical relay and handover of network |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |