Method for evaluating channel quality and network system
By dividing the channels into multiple groups and measuring by mobile stations, the problem of extended service time of network devices caused by channel quality evaluation in the prior art is solved, and more efficient channel measurement and data transmission are achieved.
Patent Information
- Application Number
- CN202310677601.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-06-08
- Publication Date
- 2024-12-10
AI Technical Summary
In the prior art, when evaluating the communication quality of the channel, the network device needs to stop service and switch different channels for measurement, resulting in an extended service stop time, especially when the bandwidth increases, which is more obvious, which is prone to interrupt data transmission.
By dividing channels into multiple channel groups and the mobile station measures and returns quality parameters to each channel group by the mobile station, the number of channel groups that the network device needs to switch is reduced, thereby shortening the time for stopping service.
It effectively reduces the time when network devices stop service, improves channel measurement efficiency, and avoids data transmission interruption, especially in the case of bandwidth expansion.
Smart Images
Figure CN119110331A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to channel evaluation, and more particularly to a method and a network system for evaluating channel quality, which can configure a mobile station (MS) to measure the channel according to packets sent by a network device through a channel group and return quality parameters to the network device, thereby reducing the time the network device stops serving. Background Art
[0002] Generally speaking, when evaluating the communication quality of a channel, a network device (e.g., a wireless access point) needs to stop service and switch to different channels to perform channel measurement in order to obtain the quality parameters of each channel (e.g., channel utilization). However, as the bandwidth used increases, more and more channels need to be measured, which makes the network device stop service for a longer time, and it is easy to cause data transmission interruption. Summary of the invention
[0003] The technical problem to be solved by the present invention is to provide a method and a network system for evaluating channel quality in view of the deficiencies in the prior art, which can configure a mobile station to perform channel measurement based on packets sent by a network device through a channel group and return quality parameters to the network device, thereby reducing the time the network device stops service.
[0004] In order to solve the above technical problems, one of the technical solutions adopted by the present invention is to provide a method for evaluating channel quality, which is used in a network system including a network device and multiple mobile stations. The network device and the mobile stations perform wireless communication through multiple channels, and the method includes: configuring the network device to divide the channels corresponding to the mobile stations into multiple channel groups; configuring the network device to send at least one packet to the corresponding mobile station through each of the channel groups to perform channel measurement, so as to obtain multiple quality parameters of the channels respectively; and configuring the mobile station to return the quality parameters to the network device, and configuring the network device to evaluate the communication quality of the channel according to the received quality parameters.
[0005] In order to solve the above technical problems, another technical solution adopted by the present invention is to provide a network system, including multiple mobile stations and a network device. The network device and the mobile stations perform wireless communication through multiple channels, and the network device is configured to perform the following steps: divide the channels corresponding to the mobile stations into multiple channel groups; send at least one packet to the corresponding mobile station through each of the channel groups to perform channel measurement to obtain multiple quality parameters of the channels respectively, wherein the mobile stations are configured to return the quality parameters to the network device; and evaluate the communication quality of the channel according to the received quality parameters.
[0006] To further understand the features and technical contents of the present invention, please refer to the following detailed description and drawings of the present invention. However, the drawings provided are only for reference and description and are not intended to limit the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0007] Figure 1 is a flow chart of the steps of a method for evaluating channel quality according to an embodiment of the present invention.
[0008] Figure 2 Schematic diagram of a network system according to an embodiment of the present invention.
[0009] Figure 3 It is a schematic diagram showing that an embodiment of the present invention evenly divides 11 channels of a 40 MHz bandwidth of a 5 GHz wireless network into two channel groups corresponding to two mobile stations respectively.
[0010] Figure 4 is a schematic diagram showing that each channel group includes (m / n) channels according to an embodiment of the present invention. DETAILED DESCRIPTION
[0011] The following is an explanation of the implementation of the present invention through specific embodiments. Those skilled in the art can understand the advantages and effects of the present invention from the content provided in this specification. The present invention can be implemented or applied through other different specific embodiments, and the details in this specification can also be modified and changed in various ways based on different viewpoints and applications without departing from the concept of the present invention. In addition, the drawings of the present invention are only simple schematic illustrations and are not depicted according to actual dimensions. It is stated in advance. The following implementations will further explain the relevant technical content of the present invention in detail, but the content provided is not intended to limit the scope of protection of the present invention.
[0012] Please also read Figure 1 and Figure 2 , Figure 1 is a flow chart of the steps of a method for evaluating channel quality according to an embodiment of the present invention, Figure 2 Schematic diagram of a network system according to an embodiment of the present invention. Figure 2 As shown, the network system 1 of the embodiment of the present invention includes a network device 11 and a plurality of mobile stations 12_1 to 12_n. In addition, the network device 11 and the mobile stations 12_1 to 12_n can communicate with each other through a plurality of channels CH_1 to CH_m ( Figure 2 That is, m and n are integers greater than 1, but the present invention does not limit the specific number of channels CH_1-CH_m and mobile stations 12_1-12_n.
[0013] Furthermore, the network device 11 may be a wireless access point including a processor and a transceiver, and each mobile station may be a user equipment (UE) such as a smart phone, a laptop, a tablet computer or an Internet of Things device including a processor, a transceiver and a channel measurement device, but the present invention does not limit the specific implementation of the network device 11 and the mobile stations 12_1 to 12_n. It should be noted that the method of the embodiment of the present invention is used for a network system 1 including the network device 11 and the mobile stations 12_1 to 12_n, and includes the following steps.
[0014] Step S110: configure the network device to divide the channels corresponding to the mobile stations into a plurality of channel groups. Specifically, each channel group may correspond to one mobile station, and each channel group includes at least one channel.
[0015] Step S120: configure the network device to send at least one packet to the corresponding mobile station through each of the channel groups to perform channel measurement, so as to obtain a plurality of quality parameters of the channels respectively.
[0016] For example, for one of the channel groups, the network device can send packets to the mobile station corresponding to the channel group through all the channels in the channel group, and the embodiment of the present invention configures the mobile station corresponding to the channel group to perform channel measurement according to the received packets to obtain the quality parameters of all the channels in the channel group. Therefore, after the mobile station performs channel measurement on all the channels of all the channel groups, the embodiment of the present invention can obtain the quality parameters of all the channels of all the channel groups.
[0017] It should be noted that the so-called channel measurement may include the step of using at least one algorithm to calculate a quality parameter that can reflect the communication quality based on the received packets. Specifically, the mobile station can perform the above steps through its processor and channel measurement device to obtain the quality parameter that reflects the communication quality.
[0018] Step S130: configure the mobile station to transmit the quality parameter back to the network device, and configure the network device to evaluate the communication quality of the channel according to the received quality parameter.
[0019] Generally speaking, in the prior art, in order to evaluate the communication quality of a channel, a network device needs to stop service and switch to different channels to perform channel measurement. Therefore, as the number of channels increases, the time for which the network device stops service becomes longer and longer.
[0020] In contrast, the method and network system 1 of the embodiment of the present invention can configure the mobile station 12_x to perform channel measurement according to the packets sent by the network device 11 through the channel group and return the quality parameter to the network device 11, where x is an integer from 1 to n. That is, since the method and network system 1 of the embodiment of the present invention are changed to the mobile station 12_x to perform channel measurement, the network device 11 only needs to switch different channel groups to send packets, thereby reducing the time when the network device 11 stops serving. In addition, each quality parameter may include one or a combination of received signal strength, error rate and channel utilization, but the present invention is not limited thereto.
[0021] It should be noted that, in order to shorten the time for the mobile station 12_x to perform channel measurement, when m is greater than or equal to n, step S110 may further include configuring the network device 11 to evenly divide the channels CH_1 to CH_m into a plurality of channel groups corresponding to the mobile stations 12_1 to 12_n, respectively. That is, the number of channel groups may be equal to the number of mobile stations 12_1 to 12_n. Therefore, the channels CH_1 to CH_m may be divided into channel groups GP_1 to GP_n ( Figure 2 Also not shown), and the channel groups GP_1-GP_n correspond to the mobile stations 12_1-12_n respectively, but the present invention is not limited thereto.
[0022] Further, in response to m being greater than n and the channels CH_1-CH_m being evenly divided into channel groups GP_1-GP_n corresponding to the mobile stations 12_1-12_n respectively, each channel group may include at least channels, and is the largest integer less than or equal to (m / n). For example, see Figure 3 , Figure 3 It is a schematic diagram showing that an embodiment of the present invention evenly divides 11 channels of a 40 MHz bandwidth of a 5 GHz wireless network into two channel groups corresponding to two mobile stations respectively.
[0023] like Figure 3 As shown, when the network device 11 divides the eleven channels CH_1-CH_11 of the 40MHz bandwidth of the 5GHz wireless network into two channel groups GP_1-GP_2 corresponding to the two mobile stations 12_1-12_2 respectively, Therefore, the first channel group GP_1 may include five channels, such as channels CH_1-CH_5, and the second channel group GP_2 may include the remaining six channels CH_6-CH_11. Then, the network device 11 may send packets to the mobile station 12_1 through the channels CH_1-CH_5 of the channel group GP_1, and send packets to the mobile station 12_2 through the channels CH_6-CH_11 of the channel group GP_2.
[0024] On the other hand, the mobile station 12_1 can perform channel measurement according to the packets sent by the network device 11 through the channels CH_1 to CH_5 and return the quality parameters of the channels CH_1 to CH_5 to the network device 11. Similarly, the mobile station 12_2 can perform channel measurement according to the packets sent by the network device 11 through the channels CH_6 to CH_11 and return the quality parameters of the channels CH_6 to CH_11 to the network device 11. Therefore, the method and network system 1 of the embodiment of the present invention can make the number of channels in each channel group as equal as possible, so as to effectively shorten the time for each mobile station to perform channel measurement.
[0025] Similarly, in response to m being a multiple of n and the channels CH_1-CH_m being evenly divided into channel groups GP_1-GP_n corresponding to the mobile stations 12_1-12_n respectively, each channel group may include (m / n) channels. Figure 4 , Figure 4 is a schematic diagram showing that each channel group includes (m / n) channels according to an embodiment of the present invention.
[0026] like Figure 4 As shown, the first channel group GP_1 may include channels CH_1 to CH_k, and the second channel group GP_2 may include channels CH_k+1 to CH_2k, and so on, the nth channel group GP_n may include channels CH_(n-1)*k+1 to CH_n*k. That is, k is (m / n), and the xth channel group GP_x may include channels CH_(x-1)*k+1 to CH_x*k. Then, the network device 11 may send packets to the mobile station 12_x through the channels CH_(x-1)*k+1 to CH_x*k of the channel group GP_x. In addition, the mobile station 12_x may perform channel measurement based on the packets sent by the network device 11 through the channels CH_(x-1)*k+1 to CH_x*k and return the quality parameters to the network device 11. Since the relevant details are similar to the previous content, they will not be repeated here.
[0027] Specifically, the method and network system 1 of the embodiment of the present invention can configure the network device 11 to specify different mobile stations to assist in measuring the quality parameters of channels of different frequency bands. However, m may also be less than n, and the present invention does not limit the specific number of channel groups, nor does it limit the specific correspondence between channel groups and mobile stations. Therefore, in some embodiments, the method and network system 1 of the embodiment of the present invention only need to configure a part of the mobile stations to assist in measuring the quality parameters of the channels.
[0028] In summary, one of the beneficial effects of the present invention is that the method and network system for evaluating channel quality provided by the present invention can configure the mobile station to perform channel measurement based on the packets sent by the network device through the channel group and return the quality parameters to the network device, thereby reducing the time the network device stops service.
[0029] The contents provided above are only preferred feasible embodiments of the present invention, and are not intended to limit the scope of the present invention. Therefore, all equivalent technical changes made using the contents of the present invention's specification and drawings are included in the scope of the present invention.
[0030] Description of Reference Numerals
[0031] 1: Network system
[0032] 11: Network Devices
[0033] 12_1~12_n: mobile station
[0034] CH_1~CH_11,CH_1~CH_k,CH_k+1~CH_2k,CH_(n-1)*k+1~CH_n*k: channel
[0035] GP_1~GP_n: Channel group
[0036] S110~S130: Process steps
Claims
1. A method for evaluating channel quality, for use in a network system, the network system comprising a network device and a plurality of mobile stations, the network device and the plurality of mobile stations performing wireless communication via a plurality of channels, and the method comprising: configuring the network device to divide the plurality of channels into a plurality of channel groups corresponding to the plurality of mobile stations; configuring the network device to send at least one packet to a corresponding mobile station through each of the plurality of channel groups to perform channel measurement, so as to obtain a plurality of quality parameters of the plurality of channels respectively; as well as The multiple mobile stations are configured to transmit the multiple quality parameters back to the network device, and the network device is configured to evaluate the communication quality of the multiple channels according to the received multiple quality parameters.
2. The method of claim 1, wherein the number of the multiple channels and the number of the multiple mobile stations are m and n respectively, m and n are integers greater than 1, and the multiple quality parameters each include one or a combination of received signal strength, error rate and channel utilization.
3. The method of claim 2, wherein in response to m being greater than or equal to n, the step of configuring the network device to divide the plurality of channels into the plurality of channel groups corresponding to the plurality of mobile stations comprises: The network device is configured to evenly divide the plurality of channels into the plurality of channel groups respectively corresponding to the plurality of mobile stations.
4. The method of claim 3, wherein in response to m being greater than n and the plurality of channels being evenly divided into the plurality of channel groups corresponding to the plurality of mobile stations respectively, the plurality of channel groups each including at least channels, and is the largest integer less than or equal to (m / n).
5. The method of claim 3, wherein in response to m being a multiple of n and the plurality of channels being evenly divided into the plurality of channel groups respectively corresponding to the plurality of mobile stations, the plurality of channel groups each include (m / n) channels.
6. A network system comprising: Multiple mobile stations; as well as A network device, the network device performs wireless communication with the plurality of mobile stations through a plurality of channels, and the network device is configured to perform the following steps: Divide the plurality of channels into a plurality of channel groups corresponding to the plurality of mobile stations; Sending at least one packet to a corresponding mobile station through each of the plurality of channel groups to perform channel measurement, so as to obtain a plurality of quality parameters of the plurality of channels respectively, wherein the plurality of mobile stations are configured to transmit the plurality of quality parameters back to the network device; as well as The communication qualities of the plurality of channels are evaluated based on the received plurality of quality parameters.
7. The network system as claimed in claim 6, wherein the number of the multiple channels and the number of the multiple mobile stations are m and n respectively, m and n are integers greater than 1, and the multiple quality parameters each include one or a combination of received signal strength, error rate and channel utilization.
8. The network system of claim 7, wherein in response to m being greater than or equal to n, the step of configuring the network device to divide the plurality of channels into the plurality of channel groups corresponding to the plurality of mobile stations comprises: The plurality of channels are evenly divided into the plurality of channel groups respectively corresponding to the plurality of mobile stations.
9. The network system of claim 8, wherein in response to m being greater than n and the plurality of channels being evenly divided into the plurality of channel groups corresponding to the plurality of mobile stations respectively, the plurality of channel groups each including at least channels, and is the largest integer less than or equal to (m / n).
10. The network system of claim 8, wherein in response to m being a multiple of n and the plurality of channels being evenly divided into the plurality of channel groups respectively corresponding to the plurality of mobile stations, the plurality of channel groups each include (m / n) channels.