Communication method, communication apparatus, and computer readable storage medium

Abstract

Provided are a communication method, a communication apparatus, and a computer readable storage medium, relating to the field of communications, and capable of, by means of an access device, sending to a non-access point station device configuration information required for establishing a communication link, such that the non-access point station device and the access device can quickly establish a communication link on the basis of the configuration information. The communication method comprises: a first access device transmits a first data frame with a non-access point station device by means of a first communication link; and the first access device sends configuration information to the non-access point station device by means of a second communication link, the configuration information being used for the non-access point station device to establish a third communication link with a second access device; wherein the operating frequencies of the first communication link and the third communication link are within a first operating frequency range, the operating frequency of the second communication link is within a second operating frequency range, and frequency values comprised in the first operating frequency range are all greater than frequency values comprised in the second operating frequency range. The embodiments of the present application are applied to the field of communications.

Description

Communication method, communication device and computer-readable storage medium

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of China on September 28, 2023, with application number 202311288633.2 and application name “A communication method, communication device and computer-readable storage medium”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The embodiments of the present application relate to the field of communications, and in particular, to a communication method, a communication device, and a computer-readable storage medium. Background Art

[0003] Wi-Fi technology has become ubiquitous and widely used as a wireless network transmission technology. Generally speaking, Wi-Fi involves two types of communication devices: access points (APs, also known as access devices) and stations (STAs, also known as non-AP station devices or endpoint devices). Communication between these devices typically occurs via communication links, transmitting signals. Millimeter-wave (mmWave) communication links have become a key technology in the communications field. The information (e.g., corresponding encryption keys) required for STAs to establish mmWave communication links with different APs is typically maintained by the AP.

[0004] Due to the increase in transmission signal frequency in 5G scenarios, the bandwidth and number of channels have also increased significantly, which places higher requirements on the transmission quality of the communication network (such as transmission bandwidth and transmission distance). Therefore, in order to ensure the transmission quality of the communication network, a multi-access point collaboration solution has been proposed for the next-generation Wi-Fi network. Generally, this solution can be implemented through the integration of optical communication technology and Wi-Fi technology. Specifically, by moving the media access control (MAC) layer and its upper layers to a centralized structure, a centralized Wi-Fi access network (C-WAN) is formed, thereby better supporting the proposed multi-AP collaboration solution.

[0005] When a communication network uses millimeter wave communication links for communication, and a STA roams from one room to another (i.e., cross-room roaming), it needs to establish a new millimeter wave communication link with the AP in the other room. However, due to the high loss of millimeter waves penetrating walls, there is a high probability of signal blind spots that are beyond the millimeter wave coverage, resulting in an inability to establish a millimeter wave communication link between the AP in the other room and the STA to communicate. Furthermore, when the terminal device and the AP reestablish the millimeter wave communication link, they need to go online and offline again. This process typically has a high handover latency of 80 milliseconds (ms) to 300 ms. Consequently, when the STA roams across rooms, the millimeter wave communication link cannot adaptively complete the handover in a timely manner, resulting in a poor user experience.

[0006] Summary of the Invention

[0007] The present application provides a communication method, a communication apparatus, and a computer-readable storage medium, which can send configuration information required for establishing a communication link to a non-access point site device through an access device, so that the non-access point site device and the access device can quickly establish a communication link based on the configuration information.

[0008] In a first aspect, a communication method is provided. The communication method can be executed by an access device, including: a first access device transmitting a first data frame to a non-access point site device via a first communication link; the first access device sending configuration information to the non-access point site device via a second communication link, the configuration information being used to establish a third communication link between the non-access point site device and the second access device, wherein operating frequencies of the first communication link and the third communication link are within a first operating frequency range, the operating frequency of the second communication link is within a second operating frequency range, and frequency values ​​within the first operating frequency range are all greater than frequency values ​​within the second operating frequency range.

[0009] In the above scheme, the non-AP site device and the access device can transmit signals via two communication links with different operating frequency ranges. Simultaneously, the access device can send configuration information to the non-AP site device via the communication link with the lower operating frequency (the second communication link). This configuration information can be used to establish a communication link with the other access device at the higher operating frequency. Typically, a communication network includes multiple access devices, and the locations of the non-AP site devices are not fixed. In one possible implementation, an access device is deployed in each room of the communication network. When a non-AP site device moves from one room (where the first access device is deployed) to another room (where the second access device is deployed), the wall loss of the signal transmitted between the non-AP site device and the first access device is high, making it impossible to maintain normal communication between the two via the first communication link. The non-AP site device then needs to establish a communication link with the second access device. Since establishing a millimeter wave communication link typically requires the non-AP site device to reconnect and log off the communication link (including completing two handshakes) and establish new configuration information, this process is often time-consuming, resulting in a latency of 80ms-300ms. However, in the above scheme, there is no need to re-establish a connection between the non-access point site device and the second access device, and a communication link can be quickly established based on the configuration information transmitted by the second communication link received by the non-access point site device. Specifically, the third communication link and the first communication link have a higher operating frequency and are located in the same operating frequency range, and are the same type of communication links. When the transmission quality of the first communication link cannot maintain the predetermined standard, based on the configuration information sent by the access device through the second communication link, a communication link (third communication link) can be quickly established between the non-access point site device and the second access device. Then, the above scheme can send the configuration information for establishing another communication link to the non-access point site device through a communication link between the non-access point site device and the access device. Based on this configuration information, a new communication link can be established in a timely manner between the communication devices (including the non-access point site device and the access device), thereby reducing latency and improving user experience.

[0010] In a possible implementation, the first operating frequency range is 30 GHz to 300 GHz; the second operating frequency range is 410 MHz to 7125 MHz.

[0011] Then, the first operating frequency range with a higher frequency in the above scheme corresponds to the millimeter wave communication link, and the second operating frequency range with a lower frequency corresponds to the Sub-6G communication link, that is, the non-access point site device and the access device can simultaneously transmit signals through the millimeter wave communication link and the Sub-6G communication link. It is not difficult to understand that the frequency band usually represents a specific frequency range, so the operating frequency range in the above scheme can also be called the operating frequency band, and this application does not limit this. Specifically, the millimeter wave communication link is a key technology for short-distance communication. Its transmission bandwidth is wide and its transmission speed is fast, but its propagation loss is high and its penetration ability is poor; the Sub-6G communication link can achieve long-distance signal transmission and has strong penetration, but its transmission bandwidth is narrow. For example, when long-distance signal transmission is required, the signal can be transmitted through the Sub-6G communication link; when high-speed signal transmission is required, the signal can be transmitted through the millimeter wave communication link. In this way, the non-access point site device and the access device can first achieve signal transmission through two different operating frequency ranges: the millimeter wave communication link and the Sub-6G communication link. At the same time, the access device can send configuration information to the non-access point site device through the Sub-6G communication link with the lower operating frequency. This configuration information can be used to establish the millimeter wave communication link with the higher operating frequency. Therefore, through the above solution, the non-access point site device and the access device communicate through two communication links (millimeter wave communication link and Sub-6G communication link), which can improve transmission quality, adapt to different application scenarios, and improve the compatibility of communication devices.

[0012] In a possible implementation, before the first access device sends the configuration information to the non-access point site device through the second communication link, the first access device determines that the transmission quality of the first communication link does not meet a predetermined standard.

[0013] In the above-described solution, the non-access point site device and the access device can first simultaneously transmit signals via two communication links (a first communication link and a second communication link). Furthermore, when the access device determines that the transmission quality of the first communication link of the two communication links does not meet a predetermined standard, i.e., determines that the communication link cannot maintain normal communication, it will send configuration information to the non-access point site device via the other communication link (the second communication link). The access device determines that the transmission quality of the communication link does not meet the predetermined standard by detecting that the received signal strength indicator (RSSI) of the communication link does not meet a predetermined threshold (typically, a default of -80 decibel milliwatts (dBm)), thereby determining that the transmission quality of the communication link does not meet the predetermined standard and cannot maintain normal communication. Alternatively, the access device detects that the ratio of the number of lost data packets to the total number of transmitted data packets (i.e., the packet loss rate) during data transmission on the communication link is too high (e.g., the packet loss rate is greater than 90%), thereby determining that the communication link cannot maintain normal communication. The access device then sends configuration information to the non-access point site device. Furthermore, based on this configuration information, a corresponding communication link can be established between the non-access point site device and the access device to ensure communication quality between the communication devices. Thus, through the above solution, the access device can first determine the transmission quality of the communication link. If it determines that the transmission quality of the communication link does not meet a predetermined standard, it sends configuration information for establishing another communication link to the non-access point site device. This configuration information can be used to establish a new communication link between the communication devices. Thus, the above solution enables the access device to determine the transmission quality of the communication link, thereby promptly identifying any communication link failures. Furthermore, by sending configuration information that can be used to establish a communication link between the communication devices, the communication link can be quickly established, ensuring normal signal transmission, thereby maintaining the transmission quality of the communication network.

[0014] In a possible implementation, the first access device sends configuration information to the non-access point site device through the second communication link, including: the first access device sends a second data frame to the non-access point site device through the second communication link, where the second data frame carries the configuration information.

[0015] The access device in the above solution then sends a second data frame carrying configuration information to the non-access point site device via a second communication link, thereby transmitting the configuration information to the non-access point site device. In one possible implementation, the second data frame may be a data frame corresponding to the IEEE 802.11 protocol (referred to as an 802.11 frame), or the second data frame may be a portion of a data frame carried within an 802.11 frame. The configuration information carried by the second data frame may be configuration parameters for establishing other communication links (excluding the second communication link). Thus, the access device can send the configuration parameters for establishing other communication links to the non-access point site device via the second communication link. Based on the configuration parameters received by the non-access point site device, a new communication link can be quickly established between the communication devices without reestablishing a connection (e.g., going online or offline). The data frame sent via the communication link in the above solution can transmit the configuration information carried by the data frame to the non-access point site device. This configuration information can be used to establish a new communication link between the communication devices, thereby reducing communication link switching latency.

[0016] In a possible implementation, the second data frame includes: a first data field, wherein the configuration information is set in the first data field.

[0017] Therefore, through the above solution, configuration information can be set in the data field of a data frame and then transmitted to the non-access point site device via a communication link. Typically, the length of the data field included in a data frame is fixed. Thus, configuration information can be carried in a data field of a certain length, or it can be carried in a data field of the entire length. For example, the access device can change the content of the configuration parameters carried in the data frame according to actual conditions and set them in a data field of a corresponding length in the data frame. Furthermore, when the non-access point site device receives the data frame, it can parse the data frame according to the corresponding protocol to obtain the corresponding configuration information. Therefore, in the above solution, the configuration information carried in the data frame is set in the data field, allowing the access device to flexibly select the configuration parameters to be sent to the non-access point site device, facilitating the non-access point site device to parse the received data frame to obtain the corresponding configuration parameters.

[0018] In a possible implementation, the second data frame includes a first identification field, where the first identification field is used to instruct the non-access point station device to save configuration information according to the received second data frame.

[0019] With the above solution, the data frame sent by the access device to the non-AP site device via the communication link also includes an identification field; based on this identification field, the non-AP site device can save the corresponding configuration information. Specifically, the data frame sent by the access device includes the configuration information carried and also includes an identification field for instructing the non-AP site device to save the configuration information. In one possible implementation, the data frame sent by the access device is transmitted to the non-AP site device via the communication link. The non-AP site device parses the received data frame to obtain the configuration information carried by the received data frame and then saves the configuration information based on the identification field included in the data frame. Furthermore, if the communication link between the communication devices cannot be maintained, the configuration information can be used by the non-AP site device to establish a new communication link with the other communication device, thereby ensuring the communication quality between the communication devices. With the above solution, the identification field included in the sent data frame enables the non-AP site device to save the received configuration information. In the event of a communication link failure, a new communication link can be quickly established based on the saved configuration information, ensuring normal communication between the communication devices and improving the user experience.

[0020] In a possible implementation, the second data frame includes: a control field, and the first identification field is set in the control field.

[0021] Then, the second data frame in the above scheme includes a control field in which the first identification field is set. Specifically, the data frame generally includes a frame header and a data portion in structure, wherein the frame header is located at the front end of the data frame and includes control information (such as address information); the data portion includes relevant data to be transmitted. Taking the 802.11 frame as an example, it includes a control field (also called a frame control field) containing multiple identification bits, wherein the frame control field includes a type field for indicating the 802.11 frame type and a subtype field for indicating that the 802.11 frame is specifically of a certain type; as well as a data field and a frame check sum (FSC) field. In one possible implementation, the second data frame is carried in the 802.11 frame, the first identification field is set in the type field and subtype field in the frame control field, and the configuration information is set in the data field. The non-access point station device parses the received 802.11 frame based on the IEEE 802.11 protocol. By parsing the frame control field, it can obtain the first identification field. Then, based on the indication of the first identification field (e.g., indicating the starting position of the configuration information in the data field), it can obtain the configuration information in the data field. In the above solution, the data frame can include the identification field in the control field. The configuration information in the data frame can be parsed from the identification field, thereby ensuring that a corresponding communication link can be established between the communication devices based on the configuration information.

[0022] In a possible implementation, the configuration information includes a key required to establish the third communication link.

[0023] Then, the configuration information in the above scheme may only include the key required to establish the third communication link. Among them, the key can be used to encrypt and decrypt the communication link, thereby preventing unauthorized users from accessing the corresponding wireless network. Therefore, when a communication link is established between a non-access point site device and an access device based on the configuration information, the configuration information should at least include the corresponding key to ensure that the non-access point site device and the access device are authorized to access the corresponding wireless network and then achieve communication through the established communication link. Then, through the above scheme, the present application includes the key in the configuration information, so that the communication device (such as the non-access point site device, the access device) can access the corresponding wireless network based on the key and then achieve communication by establishing a communication link.

[0024] In a possible implementation, the configuration information further includes one or more of the following items required to establish the third communication link: uplink and downlink channel frequency bands, channel bandwidth, power saving period, rate supported by the non-access point site device, and beam azimuth.

[0025] Then, in the above scheme, the configuration information required to establish the third communication link may include: one or more configuration parameters selected from the group consisting of uplink and downlink channel frequency bands, channel bandwidth, power saving period, and rates supported by the non-AP site device. The uplink and downlink channel frequency bands refer to the frequency bands for uplink and downlink data transmission; the channel bandwidth refers to the channel bandwidth for uplink and downlink data transmission; the power saving period refers to the fixed time interval corresponding to the periodic data transmission and reception process by the non-AP site device when the device is online (awake state); the rates supported by the non-AP site device include: the modulation and coding scheme (MCS), the coding rate (the number of bits encoded per unit time), and the modulation order (the number of bits that can be carried simultaneously by each symbol); and the beam azimuth angle includes the horizontal beam angle and the vertical beam angle. In one possible implementation, the configuration information may include only one of these items. For another example, if the non-access point site device has already obtained the uplink and downlink channel frequency bands and channel bandwidths through other means, the access device only needs to send configuration information including the power saving period, the rate supported by the non-access point site device, and the beam azimuth angle to the non-access point site device through the communication link. In this way, the access device can send configuration information including only one configuration parameter to the non-access point site device multiple times through the communication link, or the access device can also send configuration information including all configuration parameters to the non-access point site device at one time through the communication link, and finally send all configuration parameters included in the configuration information to the non-access point site device. Then, through the above scheme, the present application does not specifically limit the type and number of configuration parameters included in the configuration information, so that the access device can selectively send corresponding configuration information to the non-access point site device once or multiple times according to actual conditions, which is more efficient.

[0026] In a second aspect, a communication method is provided. The communication method can be performed by a non-access point site device, including: the non-access point site device transmitting a first data frame with a first access device via a first communication link; the non-access point site device receiving configuration information sent by the first access device via a second communication link, the configuration information being used for the non-access point site device to establish a third communication link with the second access device, wherein operating frequencies of the first communication link and the third communication link are within a first operating frequency range, the operating frequency of the second communication link is within a second operating frequency range, and frequency values ​​included in the first operating frequency range are all greater than frequency values ​​included in the second operating frequency range.

[0027] In a possible implementation, the first operating frequency range is 30 GHz to 300 GHz; the second operating frequency range is 410 MHz to 7125 MHz.

[0028] In a possible implementation, the non-access point site device receives the configuration information sent by the first access device through the second communication link, including: the non-access point site device receives a second data frame sent by the first access device through the second communication link, where the second data frame carries the configuration information.

[0029] In a possible implementation, the second data frame includes: a first data field, wherein the configuration information is set in the first data field.

[0030] In a possible implementation, the second data frame includes a first identification field, where the first identification field is used to instruct the non-access point station device to save configuration information according to the received second data frame.

[0031] In a possible implementation, the second data frame includes: a control field, and the first identification field is set in the control field.

[0032] In one possible implementation, the non-access point site device receives the second data frame sent by the first access device, and saves the configuration information according to the second data frame; the non-access point site device sends a second data response frame to the first access device through the second communication link, where the second data response frame is used to indicate that the non-access point site device has saved the configuration information.

[0033] In the above-described solution, the non-access point site device can save the corresponding configuration information based on the received data frame and send a response frame to the access device after saving. Furthermore, based on the received response frame, the access device can determine that the sent configuration information has been saved by the non-access point site device. In one possible implementation, the access device sends a data frame carrying configuration information to the non-access point site device. After the non-access point site device saves the configuration information carried in the received data frame, it sends a corresponding response frame to the access device. Based on the received response frame, the access device can send unsaved configuration information to the non-access point site device via a communication link, so that all configuration parameters required for establishing a third communication link are sent to the non-access point site device and saved. In the above-described solution, the non-access point site device can send a response frame to the access device. Based on the response frame, the access device can determine the configuration information saved by the non-access point site device. By further sending the unsaved configuration information to the non-access point site device, it can ensure that all configuration parameters required for establishing the third communication link are saved by the non-access point site device, thereby shortening the time required to establish a new communication link and reducing latency.

[0034] In a possible implementation, the configuration information includes a key required to establish the third communication link.

[0035] In a possible implementation, the configuration information further includes one or more of the following items required to establish the third communication link: uplink and downlink channel frequency bands, channel bandwidth, power saving period, rate supported by the non-access point site device, and beam azimuth.

[0036] According to a third aspect, a communication method is provided, which can be performed by a non-access point site device. The communication method includes: the non-access point site device obtaining configuration information, where the configuration information is used to establish a third communication link between the non-access point site device and a second access device; and the non-access point site device sending the configuration information to the second access device via the second communication link, wherein an operating frequency of the third communication link is within a first operating frequency range, an operating frequency of the second communication link is within a second operating frequency range, and frequency values ​​within the first operating frequency range are all greater than frequency values ​​within the second operating frequency range.

[0037] Then, the non-access point site device in the above scheme can obtain the configuration information for establishing a communication link (the third communication link), and then send the configuration information to the access device through the communication link (the second communication link). Specifically, the non-access point site device can obtain the configuration information, and then transmit the configuration information to the access device through a communication link corresponding to an operating frequency range (the second communication link); based on the configuration information, a communication link corresponding to another operating frequency range (the third communication link) can be established between the two communication devices, and the time consumption is relatively short. In one possible implementation, the non-access point site device can obtain the configuration information by saving the configuration information sent by the access device (refer to the description in other schemes of this application), and send the obtained configuration information to the access device through the communication link. Then, based on the above scheme, the non-access point site device can obtain and send the configuration information to the access device, so that a new communication link can be quickly established between the non-access point site device and the access device, which takes less time and is more efficient.

[0038] In a possible implementation, the first operating frequency range is 30 GHz to 300 GHz; the second operating frequency range is 410 MHz to 7125 MHz.

[0039] In a possible implementation, the non-access point site device sends configuration information to the second access device through the second communication link, including: the non-access point site device sends a third data frame to the second access device through the second communication link, where the third data frame carries the configuration information.

[0040] In a possible implementation, the third data frame includes: a second data field, wherein the configuration information is set in the second data field.

[0041] In a possible implementation, the third data frame includes: a second identification field, where the second identification field is used to instruct the second access device to establish a third communication link with the non-access point site device according to the received third data frame.

[0042] In a possible implementation, the third data frame includes: a control field, and the second identification field is set in the control field.

[0043] In a fourth aspect, a communication method is provided. The communication method can be performed by an access device, including: a second access device receiving configuration information sent by a non-access point site device through a second communication link, the configuration information being used by the non-access point site device to establish a third communication link with the second access device, wherein an operating frequency of the third communication link is within a first operating frequency range, an operating frequency of the second communication link is within a second operating frequency range, and frequency values ​​within the first operating frequency range are all greater than frequency values ​​within the second operating frequency range.

[0044] In a possible implementation, the first operating frequency range is 30 GHz to 300 GHz; the second operating frequency range is 410 MHz to 7125 MHz.

[0045] In a possible implementation, the second access device receives configuration information sent by the non-access point site device through the second communication link, including: the second access device receives a third data frame sent by the non-access point site device through the second communication link, where the third data frame carries the configuration information.

[0046] In a possible implementation, the third data frame includes: a second data field, wherein the configuration information is set in the second data field.

[0047] In a possible implementation, the third data frame includes: a second identification field, where the second identification field is used to instruct the second access device to establish a third communication link with the non-access point site device according to the received third data frame.

[0048] The access device in the above solution is capable of receiving a data frame including an identification field sent by a non-AP site device via a communication link. Based on the identification field, the access device is capable of establishing a third communication link with the non-AP site device. Specifically, the data frame sent by the non-AP site device includes configuration information and an identification field for instructing the access device to establish a third communication link with the non-AP site device. In one possible implementation, the data frame sent by the non-AP site device is transmitted to the access device via a communication link. The access device parses the received data frame and, in accordance with the indication of the identification field included in the data frame, establishes the third communication link with the non-AP site device. Thus, if the communication link between the communication devices cannot be maintained, the access device will establish a new communication link with the non-AP site device based on the identification field included in the received data frame, ensuring normal signal transmission between the communication devices. In the above solution, the access device is capable of establishing a new communication link with the non-AP site device based on the identification field included in the sent data frame, ensuring the communication quality between the communication devices. This solution is also time-efficient and can effectively improve the user experience.

[0049] In one possible implementation, the second access device receives a third data frame sent by the non-access point site device, and establishes a third communication link with the non-access point site device based on the third data frame; the second access device sends a third data response frame to the non-access point site device through the second communication link, where the third data response frame is used to indicate that the second access device has established the third communication link with the non-access point site device based on the received third data frame.

[0050] Then, the access device in the above solution can establish a new communication link (a third communication link) with the non-access point site device based on the received data frame, and after saving, send a response frame to the non-access point site device. In one possible implementation, the non-access point site device sends a data frame carrying configuration information to the access device, where the configuration information includes all configuration parameters required to establish the new communication link; the access device can establish a new communication link with the non-access point site device based on the received data frame, and send a response frame to the non-access point site device. Furthermore, the non-access point site device can determine, based on the received response frame, that the access device has established a new communication link with the non-access point site device. Thus, based on the received response frame, the non-access point site device determines that the access device has established the third communication link based on the received data frame and will no longer send data frames carrying configuration information to the access device. Then, the access device in the above solution can establish a communication link based on the received data frame and send a response frame to the non-access point site device, so that the non-access point site device no longer sends data frames carrying configuration information to the access device, thereby shortening the time required to establish a new communication link and effectively improving efficiency.

[0051] In a fifth aspect, a communication device is provided. The communication device may be an access device, a module or chip within the access device, or a chip or system-on-chip. The communication device includes: a transmission unit and a sending unit; the transmission unit is configured to transmit a first data frame to a non-access point site device via a first communication link; and the sending unit is configured to send configuration information to the non-access point site device via a second communication link, the configuration information being used to establish a third communication link between the non-access point site device and the second access device, wherein the operating frequencies of the first and third communication links are within a first operating frequency range, the operating frequency of the second communication link is within a second operating frequency range, and the frequency values ​​included in the first operating frequency range are all greater than the frequency values ​​included in the second operating frequency range.

[0052] In a possible implementation, the first operating frequency range is 30 GHz to 300 GHz; the second operating frequency range is 410 MHz to 7125 MHz.

[0053] In a possible implementation, before the sending unit sends the configuration information to the non-access point site device through the second communication link, the method includes: determining that the transmission quality of the first communication link does not meet a predetermined standard.

[0054] In a possible implementation, the sending unit sends the configuration information to the non-access point site device through the second communication link, including: the sending unit sends a second data frame to the non-access point site device through the second communication link, where the second data frame carries the configuration information.

[0055] In a possible implementation, the second data frame includes: a first data field, wherein the configuration information is set in the first data field.

[0056] In a possible implementation, the second data frame includes a first identification field, where the first identification field is used to instruct the non-access point station device to save configuration information according to the received second data frame.

[0057] In a possible implementation, the second data frame includes: a control field, and the first identification field is set in the control field.

[0058] In a possible implementation, the configuration information includes a key required to establish the third communication link.

[0059] In a possible implementation, the configuration information further includes one or more of the following items required to establish the third communication link: uplink and downlink channel frequency bands, channel bandwidth, power saving period, rate supported by the non-access point site device, and beam azimuth.

[0060] In a sixth aspect, a communication device is provided. The communication device may be a non-access point site device, a module or chip within the non-access point site device, or a chip or system-on-chip. The communication device includes: a transmission unit and a receiving unit; the transmission unit is configured to transmit a first data frame to a first access device via a first communication link; and the receiving unit is configured to receive configuration information sent by the first access device via a second communication link, the configuration information being used to establish a third communication link between the non-access point site device and the second access device, wherein the operating frequencies of the first and third communication links are within a first operating frequency range, the operating frequency of the second communication link is within a second operating frequency range, and the frequency values ​​included in the first operating frequency range are all greater than the frequency values ​​included in the second operating frequency range.

[0061] In a possible implementation, the first operating frequency range is 30 GHz to 300 GHz; the second operating frequency range is 410 MHz to 7125 MHz.

[0062] In a possible implementation, the receiving unit receives the configuration information sent by the first access device through the second communication link, including: the receiving unit receives a second data frame sent by the first access device through the second communication link, wherein the second data frame carries the configuration information.

[0063] In a possible implementation, the second data frame includes: a first data field, wherein the configuration information is set in the first data field.

[0064] In a possible implementation, the second data frame includes a first identification field, where the first identification field is used to instruct the non-access point station device to save configuration information according to the received second data frame.

[0065] In a possible implementation, the second data frame includes: a control field, and the first identification field is set in the control field.

[0066] In one possible implementation, the receiving unit is further used to receive a second data frame sent by the first access device and save the configuration information based on the second data frame; the transmission unit is further used to send a second data response frame to the first access device through the second communication link, wherein the second data response frame is used to indicate that the receiving unit has saved the configuration information.

[0067] In a possible implementation, the configuration information includes a key required to establish the third communication link.

[0068] In a possible implementation, the configuration information further includes one or more of the following items required to establish the third communication link: uplink and downlink channel frequency bands, channel bandwidth, power saving period, rate supported by the non-access point site device, and beam azimuth.

[0069] In a seventh aspect, a communication device is provided. The communication device may be a non-access point site device, a module or chip within the non-access point site device, or a chip or system-on-chip. The communication device includes: an acquisition unit and a sending unit; the acquisition unit is configured to acquire configuration information used by the non-access point site device to establish a third communication link with a second access device; and the sending unit is configured to send the configuration information acquired by the acquisition unit to the second access device via the second communication link, wherein the operating frequency of the third communication link is within a first operating frequency range, the operating frequency of the second communication link is within a second operating frequency range, and the frequency values ​​included in the first operating frequency range are all greater than the frequency values ​​included in the second operating frequency range.

[0070] In a possible implementation, the first operating frequency range is 30 GHz to 300 GHz; the second operating frequency range is 410 MHz to 7125 MHz.

[0071] In a possible implementation, the sending unit sends the configuration information to the second access device through the second communication link, including: the sending unit sends a third data frame to the second access device through the second communication link, wherein the third data frame carries the configuration information.

[0072] In a possible implementation, the third data frame includes: a second data field, wherein the configuration information is set in the second data field.

[0073] In a possible implementation, the third data frame includes: a second identification field, where the second identification field is used to instruct the second access device to establish a third communication link with the non-access point site device according to the received third data frame.

[0074] In a possible implementation, the control field and the second identification field are set in the control field.

[0075] In an eighth aspect, a communication device is provided. The communication device may be an access device, a module or chip within the access device, or a chip or system-on-chip. The communication device includes: a transmission unit and a processing unit; the transmission unit is configured to receive configuration information sent by a non-access point site device via a second communication link, the configuration information being used by the non-access point site device to establish a third communication link with the second access device, wherein the operating frequency of the third communication link is within a first operating frequency range, the operating frequency of the second communication link is within a second operating frequency range, and the frequency values ​​included in the first operating frequency range are all greater than the frequency values ​​included in the second operating frequency range; and the processing unit is configured to establish the third communication link with the non-access point site device based on the configuration information received by the transmission unit.

[0076] In a possible implementation, the first operating frequency range is 30 GHz to 300 GHz; the second operating frequency range is 410 MHz to 7125 MHz.

[0077] In a possible implementation, the transmitting unit receives the configuration information sent by the non-access point site device through the second communication link, including: the receiving unit receives a third data frame sent by the non-access point site device through the second communication link, wherein the third data frame carries the configuration information.

[0078] In a possible implementation, the third data frame includes: a second data field, wherein the configuration information is set in the second data field.

[0079] In a possible implementation, the third data frame includes a second identification field, where the second identification field is used to instruct the processing unit to establish a third communication link with the non-access point site device according to the received third data frame.

[0080] In one possible implementation, the transmission unit is specifically configured to receive a third data frame sent by the non-access point site device; the processing unit is specifically configured to establish a third communication link with the non-access point site device based on the third data frame received by the transmission unit; and the transmission unit is further configured to send a third data response frame to the non-access point site device through the second communication link, wherein the third data response frame is used to indicate that the processing unit has established the third communication link with the non-access point site device based on the third data frame received by the transmission unit.

[0081] In a ninth aspect, a computer-readable storage medium is provided, in which a computer program is stored. When the computer-readable storage medium is run on a computer, the computer can execute the method described in any one of the above aspects.

[0082] In a tenth aspect, a computer program product comprising instructions is provided, the computer program product comprising: computer program code, which enables the computer to execute the method described in any one of the above aspects when the computer program code is run on a computer.

[0083] In an eleventh aspect, a communication network is provided, comprising the access device described in any one of the above aspects and the non-access point station device described in any one of the above aspects. In an example, the access device may be an access point AP, and the non-access point station device may be a station STA.

[0084] Among them, the technical effects brought about by any design method in the fifth to eleventh aspects can refer to the technical effects brought about by the different design methods in the above-mentioned first to fourth aspects, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0085] FIG1 is a schematic diagram of a network architecture provided in an embodiment of the present application;

[0086] FIG2 is a schematic diagram of a network architecture provided in another embodiment of the present application;

[0087] FIG3 is a schematic diagram of a deployment scenario provided by an embodiment of the present application;

[0088] FIG4 is a schematic diagram of a communication method provided in an embodiment of the present application;

[0089] FIG5 is a schematic diagram of a data frame provided in an embodiment of the present application;

[0090] FIG6 is a schematic diagram of a roaming scenario provided by an embodiment of the present application;

[0091] FIG7 is a schematic diagram of a communication method provided in an embodiment of the present application;

[0092] FIG8 is a schematic diagram of a communication device provided in an embodiment of the present application;

[0093] FIG9 is a schematic diagram of a communication device provided by another embodiment of the present application;

[0094] FIG10 is a schematic diagram of a communication device provided in yet another embodiment of the present application;

[0095] FIG11 is a schematic diagram of a communication device provided in yet another embodiment of the present application;

[0096] FIG12 is a schematic diagram of a communication device provided in another embodiment of the present application. DETAILED DESCRIPTION

[0097] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0098] Unless otherwise defined, all technical terms used herein have the same meanings as those known to those of ordinary skill in the art. In the embodiments of the present application, words such as "first" and "second" do not limit the quantity and order. In the embodiments of the present application, "and / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone, wherein A and B can be singular or plural.

[0099] It should be noted that, in this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described in this application as "exemplary" or "for example" should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0100] The following are the technical terms used in the embodiments of the present application:

[0101] Downlink direction:

[0102] Taking the optical communication system as an example, the downlink direction is the direction in which the central control station (such as the optical line terminal (OLT)) sends data to the communication device on the user side (such as the optical network unit (ONU) and optical network terminal (ONT) on the user side).

[0103] Uplink direction:

[0104] Taking an optical communication system as an example, the uplink direction is the direction in which a communication device on the user side (eg, an optical network unit ONU, an optical network terminal ONT, etc. on the user side) sends data to a central control station.

[0105] Frequency band:

[0106] Generally, it refers to a specific frequency range, and a certain frequency band can be understood as a certain frequency range. Therefore, a frequency range can also be called a frequency band, and the operating frequency range in the embodiments of the present application can also be called an operating frequency band.

[0107] The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings.

[0108] Fiber optic communication system is one of the mainstream communication systems at present. In the fiber optic communication system, the access method of the access network (AN) is fiber access (FTTx). The access network is also called optical access network (OAN). The fiber access methods of the fiber optic access network include: fiber to the room (FTTR), fiber to the home (FTTH), fiber to the curb (FTTC), fiber to the office (FTTO), fiber to the building (FTTB), etc.

[0109] Taking FTTR as an example, FTTR can build a whole-house network (the entire deployment space of the home network) through optical fiber, achieving whole-house Wi-Fi coverage, with advantages such as stable network speed, strong wall penetration, and low latency. Typically, a home network built through FTTR includes a master optical modem (also called an optical modem) and multiple slave optical modems, and the master and slave optical modems are connected by optical fiber.

[0110] For example, with reference to FIG1 , a schematic diagram of a centralized C-WAN network architecture in an FTTR scenario is provided. Specifically, the communication network includes an optical line terminal (OLT) located in a central control station, and an optical network terminal (ONT) or optical network unit (ONU) located on the user side, and also includes an optical splitter connecting the OLT and the ONU. It should be noted that the ONT and the ONU are located at different locations on the user side. Since the functions they implement are similar, the user side of FIG1 is only illustrated using the ONT as an example. FIG1 shows three ONTs, namely ONT-1, ONT-2, and ONT-3. The OLT and the optical splitter, and the OLT and the ONT, are all connected via optical fiber. It is not difficult to understand that the architecture shown in FIG2 is used here as an example only, and should not be used to limit the connection media between communication devices in the network architecture. In one possible implementation, the OLT and the optical splitter, and the OLT and the ONT, can also be connected via a network cable.

[0111] For example, in the downstream direction, the OLT transmits an optical signal to an optical splitter. The optical splitter transmits the received downstream optical signal to AP-1, AP-2, and AP-3, respectively. AP-1, AP-2, and AP-3 then transmit the signal to the corresponding STA. In other embodiments, in the upstream direction, AP-1, AP-2, and AP-3 can also generate upstream optical signals to be sent to the OLT and transmit the upstream optical signals to the OLT via the optical splitter.

[0112] As shown in Figure 1 , based on the C-WAN centralized architecture shown in Figure 1 , a home network FTTR 10 constructed by an FTTR is used as an example. FTTR 10 includes an optical network (ONT)-1, multiple access points (AP-1 to AP-n), and multiple STAs (STA-11 to STA-1n). ONT-1 and the multiple APs (AP-1 to AP-n) are connected via optical fiber. Specifically, ONT-1 serves as the master FTTR unit (MFU) in FTTR 10 and is typically deployed in a location such as the entrance of a user's home. In other examples, the MFU can also be an AP. Multiple APs (AP-1 to AP-n) serve as slave FTTR units (SFUs) in FTTR 10 and can communicate with ONT-1 via optical fiber. Different APs are typically deployed in different rooms in the user's home. Multiple STAs (STA-11 to STA-1n) communicate with AP-1 wirelessly (e.g., using Wi-Fi) and are typically located in different locations.

[0113] Millimeter-wave communication links, as a key technology for short-range communications, offer wide transmission bandwidth and high transmission speeds, enabling high-speed data transmission. Optionally, STAs can communicate with APs via millimeter-wave communication links. For example, STA-11 accesses AP-1 in a room and transmits signals to AP-1 via a millimeter-wave communication link. When STA-11 moves from one room to another (e.g., one that includes AP-2), i.e., when roaming across rooms, STA-11 needs to access AP-2 and establish a millimeter-wave communication link with AP-2. To do this, STA-11 initiates a request to access AP-2 (uplink). AP-1 synchronizes information related to STA-11 (e.g., configuration parameters) to the MFU (i.e., ONT-1). AP-2 then obtains this information from ONT-1 and establishes a millimeter-wave communication link with STA-11, enabling STA-11 to access AP-2. Therefore, when the STA roams across rooms, there is no need to go online and offline on the millimeter wave communication link. The SFU can quickly synchronize the relevant information corresponding to the STA to ONT-1 through optical fiber, and the switching delay of the communication link is low when the STA roams across rooms.

[0114] However, the switching of the above-mentioned millimeter wave communication link can only be achieved under a specific network architecture (FTTR all-fiber home network scenario based on C-WAN centralized architecture). It is highly dependent on the network architecture and is difficult to be compatible with various communication networks.

[0115] In addition, as shown in Figure 1, STAs can optionally communicate with APs via a Sub-6G communication link. This link has strong penetration and can achieve long-distance signal transmission. However, with the continuous development of communication technology, higher requirements are placed on the transmission quality (e.g., transmission rate) of communication networks. Due to the narrow transmission bandwidth of the Sub-6G communication link, it is difficult to achieve high-speed signal transmission.

[0116] Based on the architecture shown in Figure 1, a schematic diagram of a decentralized network architecture in an FTTR scenario is provided, as an example, with reference to Figure 2. Specifically, as shown in Figure 2, the communication network includes an OLT located in a central control station and ONTs located on the user side. Typically, ONTs are implemented through deployed access points (APs). Therefore, Figure 2 uses APs as an example. The three APs shown in Figure 2 are AP-1, AP-2, and AP-3, and are typically deployed in different rooms in a user's home. The communication network also includes an optical splitter connecting the OLT and the APs. The connections between the OLT and the optical splitter, and between the OLT and the ONT, are both optical fiber. It should be understood that the architecture shown in Figure 2 is used here as an example only and should not be used to limit the connection media between communication devices in the network architecture. In one possible implementation, the connections between the OLT and the optical splitter, and between the OLT and the APs, can also be network cables.

[0117] As shown in FIG2 , based on the decentralized architecture shown in FIG2 , taking the home network FTTR 20 formed by the FTTR as an example, the FTTR 20 includes: multiple APs (AP-1 to AP-n) and multiple STAs (STA-11 to STA-1n, STA-21 to STA-2n, and STA-31 to STA-3n), wherein the multiple APs (AP-1 to AP-n) are connected to the OLT via an optical splitter, and the multiple APs and the OLT, as well as the multiple APs and the optical splitter, can be connected via optical fiber. Specifically, the multiple APs (AP-1 to AP-n) can communicate with the OLT via optical fiber, and different APs are usually deployed in different rooms in the user's home. Multiple STAs (such as STA-1 to STA-n) communicate with the AP (such as AP-1) wirelessly (such as Wi-Fi technology), and their locations are usually not fixed.

[0118] Based on the architecture shown in Figure 2, a schematic diagram of a deployment scenario for a decentralized network architecture is provided, as shown in Figure 3. Specifically, as shown in Figure 3, the deployment scenario includes: a balcony, bedroom 1, living room, bedroom 3, dressing room, study, kitchen, dining room, bathroom, and bedroom 2. The network deployment in this deployment space is connected by dotted lines, with access devices (i.e., AP-1, AP-2, and AP-3 in Figure 3) deployed in the dining room, dressing room, and living room. Each AP is connected by optical fiber or cable (i.e., dotted lines in the figure), thereby achieving wireless signal coverage in this deployment scenario.

[0119] As shown in Figure 3, STAs can optionally communicate with APs via millimeter wave communication links. For example, STA-11 connects to AP-1 in the restaurant and transmits signals to AP-1 via the millimeter wave communication link. When STA-11 moves from the restaurant to the dressing room (including AP-2), i.e., when roaming across rooms, STA-11 needs to connect to AP-2 and establish a millimeter wave communication link with AP-2. Therefore, when STA-11 roams across rooms, it needs to log in and out of the millimeter wave communication link again (including completing two handshakes), which takes a long time to connect to AP-2 and establish a millimeter wave communication link with AP-2. Therefore, when a STA roams across rooms (from the restaurant to the dressing room), due to the high propagation loss and poor penetration of the millimeter wave communication link, signal blind spots that are beyond the reach of the millimeter wave signal are inevitable. This results in the AP in the other room (the dressing room) being unable to obtain relevant information for establishing a millimeter wave communication link. This makes it difficult for the AP and STA to establish a new millimeter wave communication link, making it difficult to ensure the transmission quality of the communication network.

[0120] Furthermore, the relevant information corresponding to STAs is typically managed and maintained independently by each AP. For example, as shown in Figure 2, the relevant information corresponding to STA-1 through STA-n is managed and maintained by AP-1. This can lead to the millimeter-wave communication link between the AP and STA failing to transmit data properly (poor transmission quality). Since the STA cannot obtain the relevant information (e.g., key), it is difficult for the AP and STA to quickly restore the corresponding millimeter-wave communication link, which can seriously affect the transmission quality of the communication network.

[0121] With the development of wireless network technology, future wireless network scenarios may see the coexistence of low-band communication links (i.e., links operating at lower frequencies, such as Sub-6G communication links) and high-band communication links (i.e., links operating at higher frequencies, such as millimeter wave communication links) (e.g., network scenarios corresponding to Wi-Fi 8). Therefore, ensuring that non-access point site devices can quickly complete roaming handovers and establish corresponding communication links with access devices without relying on a specific network architecture becomes a key issue to be solved.

[0122] Based on the above problems, an embodiment of the present application provides a communication method, which sends relevant information for establishing a communication link to a non-access point site device through an access device, so that the non-access point site device can obtain relevant information for establishing a new communication link. Exemplarily, as shown in Figure 4, a schematic diagram of a communication method is provided. The communication method provided by the embodiment of the present application will be described in detail below in conjunction with Figure 4. It should be noted that the architecture shown in Figure 2 is taken as an example here, and the communication method provided by the embodiment of the present application is described by taking the access device AP-1 and the non-access point site device STA-11 as an example, and this does not limit the communication method provided by the embodiment of the present application. The communication method includes steps 301-304, and the communication method is applied to a communication device, which can be an access device or a non-access point site device. The following is specifically described using the application to the access device and the non-access point site device as an example, and the specific description is as follows:

[0123] It should be noted that the access device and the non-access point site device can communicate via at least two communication links. For example, these two communication links include a first communication link and a second communication link. Typically, the operating frequency of the first communication link is within a first operating frequency range, and the operating frequency of the second communication link is within a second operating frequency range. The frequency values ​​included in the first operating frequency range are all greater than the frequency values ​​included in the second operating frequency range. That is, the communication link operating in the first operating frequency range is a high-band communication link, and the communication link operating in the second operating frequency range is a low-band communication link. For example, the first operating frequency range is: 30 GHz to 300 GHz; the second operating frequency range is: 410 MHz to 7125 MHz.

[0124] In the following example, the first communication link is described as a millimeter wave communication link, and the second communication link is described as a Sub-6G communication link. The non-access point site device and the access device in the embodiments of the present application have the ability to communicate on two communication links (millimeter wave communication link and Sub-6G communication link) with different operating frequency ranges. It is not difficult to understand that for the sake of ease of explanation, this is only used as an example, and should not be used to limit the types of access devices, non-access point site devices, and non-access point site device communication links.

[0125] Step 301: An access device transmits data frames to a non-access point site device via a millimeter wave communication link.

[0126] 4 , the access device transmits data frames to the non-access point device via the millimeter wave communication link. Specifically, the access device AP-1 transmits data frames to the non-access point device STA-11 via the millimeter wave communication link.

[0127] Under normal circumstances, when the transmission quality of the millimeter wave communication link meets a predetermined standard, the access device and the non-access point site device usually transmit data frames through the millimeter wave communication link.

[0128] When the access device determines that the transmission quality of the millimeter wave communication link does not meet the predetermined standard, the access device sends configuration information to the non-access point site device via the Sub-6G communication link. Then, when the non-access point site device roams across rooms and the transmission quality of the millimeter wave communication link does not meet the predetermined standard, the access device can send the configuration information required to establish the millimeter wave communication link to the non-access point site device via the Sub-6G communication link. Based on this configuration information, the non-access point site device and the other access device can establish a millimeter wave communication link.

[0129] Specifically, the access device can determine that the transmission quality of the millimeter wave communication link does not meet the predetermined standard in the following manner, including: the access device detects that the received signal strength indication (RSSI) of the millimeter wave communication link does not meet the predetermined threshold (usually the default value is -80 decibel milliwatts (dBm)), and determines that the transmission quality of the millimeter wave communication link does not meet the predetermined standard and cannot maintain normal communication. Alternatively, the access device detects that the ratio of the number of lost data packets to the transmitted data group (i.e., the packet loss rate) when the millimeter wave communication link transmits data is too high (for example, the packet loss rate is greater than 90%), and determines that the millimeter wave communication link cannot maintain normal communication. Then, the access device will send configuration information to the non-access point site device. For example, if the signal strength indication RSSI detected by the access device is -90dBm (lower than the threshold value of -80dBm), it is determined that the millimeter wave communication link cannot maintain normal communication, and step 302 is executed.

[0130] Step 302: The access device sends configuration information to the non-access point site device through the Sub-6G communication link.

[0131] As shown in Figure 4 , an access device sends configuration information to a non-access point device via a Sub-6G communication link. Specifically, access device AP-1 sends configuration information to a non-access point device STA-11 via a Sub-6G communication link. This configuration information is used by the non-access point device to establish a millimeter wave communication link with another access device (e.g., AP-2).

[0132] In a possible implementation, the access device sends a data frame carrying configuration information to the non-access point site device through a Sub-6G communication link, thereby sending the configuration information to the non-access point site device.

[0133] Exemplarily, as shown in FIG5 , an embodiment of the present application provides a schematic diagram of a possible data frame. Specifically, in combination with (1) in FIG5 , the data frame includes a control field and a data field. Optionally, the data frame also includes a frame check sum (FSC) field. Among them, the identification field is set in the control field, which can instruct the non-access point site device to save the configuration information carried according to the received data frame, and the configuration information is set in the data field, which can be used for the non-access point site device to establish a millimeter wave communication link with other access devices.

[0134] Optionally, the configuration information includes a key required for establishing a millimeter wave communication link. In one possible implementation, the configuration information also includes one or more of the following for establishing a millimeter wave communication link: uplink and downlink channel frequency bands, channel bandwidth, power saving period, rates supported by non-access point site devices, and beam azimuth.

[0135] In conjunction with the data frame shown in (1) of FIG5 , in the data field, the uplink and downlink channel frequency bands, channel bandwidth, power saving period, the rate supported by the non-access point site device, and the beam azimuth angle are sequentially set. Among them, the uplink and downlink channel frequency bands refer to the frequency band number for data transmission in the uplink direction and the frequency band for data transmission in the downlink direction; the channel bandwidth refers to the channel bandwidth for data transmission in the uplink direction and the channel bandwidth for data transmission in the downlink direction; the power saving period refers to the fixed time interval corresponding to the periodic data transmission and reception process of the non-access point site device when the device is online (awake state); the rate supported by the non-access point site device includes: modulation and coding scheme (MCS), coding rate (referring to the number of bits encoded per unit time), modulation order (referring to the number of bits that can be carried simultaneously by each symbol); beam azimuth angle includes the horizontal beam angle and the vertical beam angle.

[0136] For example, referring to (2) in FIG5 , a possible frame structure of an 802.11 frame is shown. Specifically, the 802.11 frame includes a control field (also called a frame control field) containing multiple identification bits (not shown in FIG5 ), wherein the frame control field includes a type field for indicating the 802.11 frame type and a subtype field for indicating that the 802.11 frame is specifically of a certain type; as well as a data field and a frame checksum FSC field. In a possible implementation, the data frame shown in (1) in FIG5 may also be an 802.11 frame. Then, the identification field of the data frame can be set in the type field and subtype field in the frame control field of the 802.11 frame shown in (2) in FIG5 , and the configuration information can be set in the data field of the 802.11 frame shown in (2) in FIG5 .

[0137] It is not difficult to understand that the configuration information may also include only one of the configuration parameters required to establish a millimeter wave communication link (uplink and downlink channel frequency bands, channel bandwidth, power saving period, etc.). For example, the non-access point site device sequentially sends configuration information including only one of the following: power saving period, uplink and downlink channel frequency bands, channel bandwidth, rate supported by the non-access point site device, and beam azimuth. In addition, the non-access point site device may periodically send configuration information at fixed time intervals or in a preset order, and the embodiments of the present application are not limited to this. In this way, the access device may send configuration information including only one configuration parameter to the non-access point site device multiple times via the communication link, and send all configuration parameters included in the configuration information to the non-access point site device. Alternatively, the access device may also send configuration information including all configuration parameters to the non-access point site device at once via the communication link. In the embodiments of the present application, there is no specific limitation on the type and number of configuration parameters included in the configuration information, nor is there a limitation on the order in which the configuration parameters are sent in the configuration information. Then, the access device can selectively send corresponding configuration information to the non-access point site device once or multiple times according to actual conditions.

[0138] Step 303: The non-access point site device saves the configuration information.

[0139] 4 , the non-access point station device stores configuration information. Specifically, the non-access point station device STA-11 stores the configuration information sent by the access device AP-1.

[0140] Based on the above steps 301 to 303, optionally:

[0141] Step 304: The non-access point station device sends a data response frame to the access device.

[0142] 4 , the non-access point device sends a data response frame to the access device, indicating that the non-access point device has saved the configuration information. Specifically, the non-access point device STA-11 sends a data response frame to the access device AP-1.

[0143] It is readily understood that, since configuration information may include one or more configuration parameters, the access device can send the same or different data frames (carrying the same or different configuration parameters) to the non-AP site device multiple times. For example, a data frame sent by the access device to the non-AP site device includes a configuration parameter. The non-AP site device saves the configuration parameter based on the received data frame and sends a data response frame to the access device. Based on the received data response frame, the access device can select and send other configuration parameters to the non-AP site device that have not yet been saved by the non-AP site device.

[0144] Then, based on steps 301-304 above, the access device can determine the transmission quality of the millimeter wave communication link and promptly identify whether the communication link has failed. If it is determined that the transmission quality does not meet the predetermined standard, the configuration information is sent to the non-access point site device via the Sub-6G communication link. In this way, signal transmission between the non-access point site device and the access device can still be carried out via the Sub-6G communication link, which to a certain extent ensures the transmission quality of the communication network. At the same time, the configuration information, which is usually managed and maintained by the access device, can be transmitted to the non-access point site device via data frames transmitted via the Sub-6G communication link. The configuration information will be stored by the non-access point site device so that a millimeter wave communication link can be established between the non-access point site device and the other access device based on this configuration information.

[0145] Typically, a communication network includes multiple access devices, and the locations of non-access point site devices are not fixed. For example, an access device is deployed in each room in the communication network. In this way, when a non-access point site device moves from one room (for example, where AP-1 is deployed) to another room (for example, where AP-2 is deployed), the wall penetration loss of the signal transmitted between the non-access point site device and AP-1 is high, and the millimeter wave communication link cannot be transmitted normally. The non-access point site device needs to re-establish a communication link with AP-2. Typically, establishing a communication link requires the non-access point site device to go online and offline on the communication link again (including completing two handshakes), and also establish new configuration information. This process often takes a long time, resulting in a delay of 80ms-300ms.

[0146] For example, with reference to FIG6 , an embodiment of the present application also provides a schematic diagram of a scenario in which a non-access point site device roams (switches to connect to a new access device) on a Sub-6G communication link. In conjunction with FIG6 , the horizontal axis represents distance or time, which is used to represent the position of the non-access point site device (e.g., STA in the figure) corresponding to different distances (or times), and the vertical axis represents signal strength. FIG6 includes three shaded areas, namely Area 1, Area 2, and Area 3, which are used to represent the signal strength of the AP at different distances (or times), and also includes 9 access devices (i.e., AP-1 to AP-9 in the figure).

[0147] Specifically, as shown in Figure 6, at the initial distance (time), the STA is located at position A and connected to AP-1, and the signal strength received from the AP is strong; when the STA moves from position A to position B, the signal strength received from AP-1 begins to weaken. As the STA moves to position C, the received signal strength continues to weaken. When it moves to position C, the signal strength of AP-1 received by the STA is less than the threshold, and the STA sends a scan frame to multiple other APs. After receiving the scan frame, multiple APs will reply with a response frame to the STA. As the STA continues to move to position E, it will receive response frames from different APs. When the STA moves to position E, it chooses to establish a Sub-6G communication link with the new AP (for example, AP-2 that replies to the response frame the earliest) in the received response frame, thereby roaming on the Sub-6G communication link and connecting to AP-2.

[0148] Based on the above, exemplarily, with reference to FIG7 , a schematic diagram of a communication method is provided. Through this communication method, when a non-access point site device roams on a communication link (such as a low-frequency band communication link) and connects to a new access device, it can also establish another communication link (such as a high-frequency band communication link) with the new access device. The communication method provided in the embodiment of the present application will be described in detail below with reference to FIG7 . It should be noted that, here, the architecture shown in FIG2 is taken as an example, and the communication method provided in the embodiment of the present application is described by taking the access device AP-2 and the non-access point site device STA-11 as an example, and this does not limit the communication method provided in the embodiment of the present application. The communication method includes steps 401 to 405, and the communication method is applied to a communication device, which can be an access device or a non-access point site device. The following is specifically described by taking the application to the access device and the non-access point site device as an example, and the specific description is as follows:

[0149] It should be noted that the access device and the non-access point site device can communicate via at least two communication links. For example, these two communication links include a second communication link and a third communication link. Typically, the operating frequency of the second communication link is within the second operating frequency range, and the operating frequency of the third communication link is within the first operating frequency range. The frequency values ​​included in the first operating frequency range are all greater than the frequency values ​​included in the second operating frequency range. That is, the communication link operating in the first operating frequency range is a high-band communication link, and the communication link operating in the second operating frequency range is a low-band communication link. For example, the first operating frequency range is: 30 GHz to 300 GHz; the second operating frequency range is: 410 MHz to 7125 MHz.

[0150] In the following example, the third communication link is described as a millimeter wave communication link, and the second communication link is described as a Sub-6G communication link. The non-access point site device and the access device in the embodiments of the present application have the ability to communicate on two communication links (millimeter wave communication link and Sub-6G communication link) with different operating frequency ranges. It is not difficult to understand that for the sake of ease of explanation, this is only used as an example and should not be used to limit the types of access devices, non-access point site devices, and non-access point site device communication links.

[0151] Step 401: A non-access point site device obtains configuration information.

[0152] As shown in FIG7 , the non-access point site device obtains configuration information. The configuration information is used by the non-access point site device to establish a millimeter wave communication link with other access devices. Specifically, the non-access point site device STA-11 obtains the configuration information. Accordingly, in some examples, the configuration information may be the configuration information received by the non-access point site device in step 302 (i.e., the configuration information sent by the access device to the non-access point site device via the Sub-6G communication link).

[0153] Optionally, the configuration information may be acquired by the non-access point station device by reading the configuration information saved in step 303 .

[0154] Step 402: The non-access point site device sends configuration information to the access device through the Sub-6G communication link.

[0155] As shown in Figure 7, the non-access point site device sends configuration information to the access device through the Sub-6G communication link. Specifically, the non-access point site device STA-11 sends configuration information to the access device AP-2 through the Sub-6G communication link, and the access device AP-2 receives the configuration information. The configuration information includes the key required to establish a millimeter wave communication link. In one possible implementation, the configuration information also includes one or more of the following for establishing a millimeter wave communication link: uplink and downlink channel frequency bands, channel bandwidth, power saving period, rate supported by the non-access point site device, and beam azimuth. In addition, the specific format and function of the configuration information can refer to the description in the above embodiment and will not be repeated here.

[0156] In one possible implementation, the non-access point site device roams on the Sub-6G communication link and connects to the access device AP-2, and transmits data frames with the access device AP-2 through the Sub-6G communication link. The process of the non-access point site device roaming on the Sub-6G communication link and connecting to the access device AP-2 can be shown in Figure 6, and will not be repeated here. In this way, the access device sends a data frame carrying configuration information to the non-access point site device through the Sub-6G communication link, and sends configuration information to the access device AP-2. Optionally, the data frame can refer to the data frame shown in (1) in Figure 5, and the data frame includes a data field and an identification field, wherein the configuration information is set in the data field, and the identification field can indicate that the access device establishes a millimeter wave communication link with the non-access point site device based on the received data frame. Then, the access device can receive the configuration information by parsing the received data frame.

[0157] Step 403: The access device receives configuration information via the Sub-6G communication link.

[0158] 7 , the access device receives configuration information via the Sub-6G communication link. Specifically, the access device AP-2 receives configuration information sent by the non-access point station device STA-11 via the Sub-6G communication link.

[0159] Step 404: The access device establishes a millimeter wave communication link with the non-access point site device.

[0160] 7 , the access device establishes a millimeter wave communication link with the non-access point station device. Specifically, the access device AP-2 establishes a millimeter wave communication link with STA-11 according to the received configuration information.

[0161] Based on the above steps 401 to 405, optionally:

[0162] Step 405: The access device sends a response frame to the non-access point site device.

[0163] As shown in Figure 7 , the access device sends a response frame to the non-AP site device. The response frame indicates that the access device has established a millimeter-wave communication link with the non-AP site device based on the received data frame. Specifically, access device AP-2 establishes a millimeter-wave communication link with STA-11 and sends a response frame to the non-AP site device STA-11.

[0164] In a possible implementation, the access device AP-2 sends a response frame to the non-access point station device STA-11 through the Sub-6G communication link.

[0165] Then, based on the above steps 401 to 405, when the non-access point site device (STA-11) roams on the Sub-6G communication link and connects to the new access device (AP-2), it can obtain and send configuration information to AP-2 via the Sub-6G communication link. Based on this configuration information, the non-access point site device and the new access device do not need to re-connect and log off on the millimeter wave link to establish new configuration information, and the millimeter wave communication link can be quickly established based on the obtained configuration information.

[0166] The above communication method then transmits configuration information for establishing another communication link (a high-band communication link) to the non-AP site device via a communication link (a low-frequency communication link) between the non-AP site device and the access device. Furthermore, based on this configuration information, communication links between the communication devices (including the non-AP site device and the access device) can be switched promptly, reducing switching latency and improving the user experience.

[0167] It is understandable that the communication device in the above embodiment includes a hardware structure and / or software module for performing each function in order to realize the above functions. It should be easily appreciated by those skilled in the art that, in combination with the units and algorithmic operations of each example described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0168] In the embodiment of the present application, the functional modules of the communication device can be divided according to the above method example. For example, each functional module can be divided according to each function, or two or more functions can be integrated into one processing module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of modules in the embodiment of the present application is schematic and is only a logical functional division. In actual implementation, there may be other division methods.

[0169] For example, with reference to FIG8 , an embodiment of the present application provides a schematic diagram of a communication device. The communication device may be an access device, a module or a chip within the access device, or a chip or a system on chip. The communication device includes: a transmission unit 701 and a sending unit 702; the transmission unit 701 is configured to transmit a first data frame with a non-access point site device via a first communication link; the sending unit 702 is configured to send configuration information to the non-access point site device via a second communication link, the configuration information being used to establish a third communication link between the non-access point site device and the second access device, wherein the operating frequencies of the first communication link and the third communication link are within a first operating frequency range, the operating frequency of the second communication link is within a second operating frequency range, and the frequency values ​​included in the first operating frequency range are all greater than the frequency values ​​included in the second operating frequency range.

[0170] The transmission unit 701 is further configured to execute the communication method described in step 301, and the sending unit 702 is further configured to execute the communication method described in step 302. It is understood that the communication device can directly refer to the description of the various functions and effects in the communication method shown in FIG3 above, and no further details are given here.

[0171] For example, with reference to FIG9 , an embodiment of the present application provides a schematic diagram of a communication device. The communication device may be a non-access point site device, or a module or chip within the non-access point site device. The non-access point site device may also be a chip or a system-on-chip. The communication device includes: a transmission unit 801 and a receiving unit 802; the transmission unit 801 is configured to transmit a first data frame to a first access device via a first communication link; the receiving unit 802 is configured to receive configuration information sent by the first access device via a second communication link, the configuration information being used for the non-access point site device to establish a third communication link with the second access device, wherein the operating frequencies of the first communication link and the third communication link are within a first operating frequency range, the operating frequency of the second communication link is within a second operating frequency range, and the frequency values ​​included in the first operating frequency range are all greater than the frequency values ​​included in the second operating frequency range.

[0172] The transmission unit 801 is further configured to execute the communication method described in step 301, and the receiving unit 802 is further configured to execute the communication method described in step 302. It is understood that the communication device can directly refer to the description of the functions and effects of the communication method shown in FIG3 above, and no further details will be given here.

[0173] For example, with reference to FIG10 , an embodiment of the present application provides a schematic diagram of a communication device. The communication device may be a non-access point site device, or a module or chip within the non-access point site device. The non-access point site device may also be a chip or a system-on-chip. The communication device includes: an acquisition unit 901 and a sending unit 902; the acquisition unit 901 is configured to acquire configuration information, where the configuration information is used by the non-access point site device to establish a third communication link with a second access device; the sending unit 902 is configured to send the configuration information acquired by the acquisition unit 901 to the second access device via the second communication link, wherein the operating frequency of the third communication link is within a first operating frequency range, the operating frequency of the second communication link is within a second operating frequency range, and the frequency values ​​included in the first operating frequency range are all greater than the frequency values ​​included in the second operating frequency range.

[0174] The acquiring unit 901 is further configured to execute the communication method described in step 401, and the sending unit 902 is further configured to execute the communication method described in step 402. It is understood that the communication device can directly refer to the description of the functions and effects of the communication method shown in FIG4 above, and will not be repeated here.

[0175] For example, with reference to FIG11 , an embodiment of the present application provides a schematic diagram of a communication device. The communication device may be an access device, a module or chip within the access device, or a chip or system-on-chip. The communication device includes: a transmission unit 1001 and a processing unit 1002; the transmission unit is configured to receive configuration information sent by a non-access point site device via a second communication link, the configuration information being used by the non-access point site device to establish a third communication link with the second access device, wherein the operating frequency of the third communication link is within a first operating frequency range, the operating frequency of the second communication link is within a second operating frequency range, and the frequency values ​​included in the first operating frequency range are all greater than the frequency values ​​included in the second operating frequency range; the processing unit 1002 is configured to establish the third communication link with the non-access point site device according to the configuration information received by the transmission unit 1001.

[0176] The transmission unit 1001 is further configured to execute the communication method described in step 403, and the processing unit 1002 is further configured to execute the communication method described in step 404. It is understood that the communication device can directly refer to the description of the functions and effects of the communication method shown in FIG4 above, and no further details are given here.

[0177] In one possible implementation, an embodiment of the present application further provides a communication device, which may be a chip or a chip system. The communication device includes: a processor and an interface circuit, the processor being used to read instructions to execute the method in any of the above-mentioned method embodiments. In a possible design, the communication device further includes a memory. The memory is used to store necessary program instructions and data, and the processor can call the program code stored in the memory to instruct the communication device to execute the method in any of the above-mentioned method embodiments. Of course, the memory may not be in the communication device. When the communication device is a chip system, it may be composed of a chip, or it may include a chip and other discrete devices, and the embodiments of the present application do not specifically limit this.

[0178] Exemplarily, as shown below in FIG12 , an embodiment of the present application provides a communication device. Specifically, the communication device includes one or more transceivers 1201 and a processor 1202. Exemplarily, the transceiver 1201 is used to execute the functions or steps implemented by the transmission unit 701 and the sending unit 702 shown in FIG8 , the transmission unit 801 and the receiving unit 802 shown in FIG9 , the sending unit 902 shown in FIG10 , and the transmission unit 1001 shown in FIG11 , and the processor 1202 is used to execute the functions or steps implemented by the acquisition unit 901 shown in FIG10 and the processing module 1002 shown in FIG11 . For a detailed description of the processor 1201 and the transceiver 1202, please refer to FIG8 to FIG11 or the method embodiments shown above and will not be described in detail here.

[0179] In the above embodiments, for the specific description of each term or step, please refer to the introduction in the above method embodiment, and will not be described in detail here.

[0180] In various implementations of the communication device shown in FIG12 , the transceiver may include a receiver and a transmitter. The transceiver is configured to perform the transmission function described above, which may specifically include receiving or transmitting. For example, the receiver is configured to perform a receiving function (or operation), and the transmitter is configured to perform a transmitting function (or operation). The transceiver is configured to communicate with other devices / apparatuses via a transmission medium.

[0181] Optionally, the communication device may further include one or more memories 1203 for storing program instructions and / or data. The memory 1203 is coupled to the processor 1202. The coupling in the embodiment of the present application is an indirect coupling or communication connection between devices, units or modules, which can be electrical, mechanical or other forms, and is used for information exchange between devices, units or modules. The processor 1202 may operate in conjunction with the memory 1203. The processor 1202 can execute program instructions stored in the memory 1203. Optionally, at least one of the one or more memories may be included in the processor.

[0182] The specific connection medium between the transceiver 1201, processor 1202, and memory 1203 is not limited in the embodiments of the present application. In Figure 12, the memory 1203, processor 1202, and transceiver 1201 are connected via bus 1204. The bus is represented by a bold line in Figure 12. The connection methods between other components are merely illustrative and are not intended to be limiting. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, Figure 12 uses only one bold line, but this does not mean that there is only one bus or only one type of bus.

[0183] In the embodiments of the present application, the processor may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, etc., and may implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of the present application. The general-purpose processor may be a microprocessor or any conventional processor, etc. The steps of the methods disclosed in the embodiments of the present application may be directly implemented as being executed by a hardware processor, or may be executed by a combination of hardware and software modules in the processor, etc.

[0184] In the embodiment of the present application, memory may include but is not limited to non-volatile memories such as hard disk drive (HDD) or solid-state drive (SSD), random access memory (RAM), erasable programmable read-only memory (EPROM), read-only memory (ROM) or portable read-only memory (CD-ROM), etc. Memory is any storage medium that can be used to carry or store program code in the form of instructions or data structures, and can be read and / or written by a computer (such as the communication device shown in the present application), but is not limited thereto. The memory in the embodiment of the present application can also be a circuit or other arbitrarily capable of realizing a storage function, for storing program instructions and / or data.

[0185] The processor 1202 is primarily used to process communication protocols and communication data, control the entire communication device, execute software programs, and process software program data. The memory 1203 is primarily used to store software programs and data. The transceiver 1201 may include a control circuit and an antenna. The control circuit is primarily used to convert baseband signals into radio frequency signals and process radio frequency signals. The antenna is primarily used to transmit and receive radio frequency signals in the form of electromagnetic waves. Input and output devices, such as a touch screen, display, and keyboard, are primarily used to receive user input and output data to the user.

[0186] When the communication device is powered on, processor 1202 can read the software program in memory 1203, interpret and execute the instructions of the software program, and process the data of the software program. When data needs to be sent wirelessly, processor 1202 performs baseband processing on the data to be transmitted and outputs the baseband signal to the radio frequency circuit. The radio frequency circuit performs radio frequency processing on the baseband signal and then transmits the radio frequency signal to the outside in the form of electromagnetic waves via the antenna. When data is sent to the communication device, the radio frequency circuit receives the radio frequency signal via the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to processor 1202. Processor 1202 converts the baseband signal into data and processes the data.

[0187] In another implementation, the RF circuit and antenna may be provided independently of the processor performing baseband processing. For example, in a distributed scenario, the RF circuit and antenna may be remotely arranged independent of the communication device.

[0188] The communication device shown in the embodiment of the present application may also have more components than those in Figure 12, and the embodiment of the present application is not limited to this. The method performed by the processor and transceiver shown above is only an example. For the specific steps performed by the processor and transceiver, please refer to the method described above.

[0189] In a possible implementation, an embodiment of the present application further provides a computer-readable storage medium, which stores a computer program. When the computer-readable storage medium is run on a computer, the computer can execute the method in any of the above method embodiments.

[0190] In a possible implementation, an embodiment of the present application further provides a computer program product comprising instructions, the computer program product comprising: computer program code, which, when executed on a computer, enables the computer to execute a method in any of the above method embodiments.

[0191] In one possible implementation, an embodiment of the present application further provides a communication network, comprising an access device as described in any of the above method embodiments and a non-access point station device as described in any of the above embodiments. In one example, the access device may be an access point (AP), and the non-access point station device may be a station (STA).

[0192] In the above embodiments, all or part of the embodiments may be implemented by software, hardware, firmware, or any combination thereof. When implemented using a software program, all or part of the embodiments may be implemented in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) method. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that includes one or more available media. The available medium can be a magnetic medium (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid state disk (SSD)). In an embodiment of the present application, the computer may include the device described above.

[0193] Although the present application is described herein in conjunction with various embodiments, in the process of implementing the claimed application, those skilled in the art can understand and implement other changes to the disclosed embodiments by reviewing the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "an" does not exclude multiple situations. A single processor or other unit can implement several functions listed in the claims. Certain measures are recorded in different dependent claims, but this does not mean that these measures cannot be combined to produce good results.

[0194] Although the present application has been described with reference to specific features and embodiments thereof, it is apparent that various modifications and combinations may be made thereto without departing from the spirit and scope of the present application. Accordingly, this specification and the drawings are merely illustrative of the present application as defined by the appended claims and are deemed to cover any and all modifications, variations, combinations or equivalents within the scope of the present application. Obviously, those skilled in the art may make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, the present application is intended to encompass such modifications and variations as fall within the scope of the claims of the present application and their equivalents.

Claims

1. A communication method, characterized in that: include: The first access device transmits a first data frame with the non-access point site device via a first communication link; The first access device sends configuration information to the non-access point site device through a second communication link, where the configuration information is used for the non-access point site device to establish a third communication link with the second access device, wherein operating frequencies of the first communication link and the third communication link are within a first operating frequency range, and an operating frequency of the second communication link is within a second operating frequency range, and frequency values ​​included in the first operating frequency range are all greater than frequency values ​​included in the second operating frequency range.

2. The communication method according to claim 1, characterized in that: The first operating frequency range is 30 GHz to 300 GHz; the second operating frequency range is 410 MHz to 7125 MHz.

3. The communication method according to claim 1 or 2, characterized in that: Before the first access device sends configuration information to the non-access point site device through the second communication link, the method includes: The first access device determines that the transmission quality of the first communication link does not meet a predetermined standard.

4. The communication method according to any one of claims 1 to 3, characterized in that: The first access device sends configuration information to the non-access point site device through the second communication link, including: The first access device sends a second data frame to the non-access point site device through a second communication link, wherein the second data frame carries the configuration information.

5. The communication method according to claim 4, characterized in that: The second data frame includes: a first data field, wherein the configuration information is set in the first data field.

6. The communication method according to claim 4 or 5, characterized in that: The second data frame includes: a first identification field, where the first identification field is used to instruct the non-access point site device to save the configuration information according to the received second data frame.

7. The communication method according to claim 6, characterized in that: The second data frame includes: a control field, and the first identification field is set in the control field.

8. The communication method according to any one of claims 1 to 7, characterized in that: The configuration information includes: a key required to establish the third communication link.

9. The communication method according to claim 8, characterized in that: The configuration information also includes one or more of the following items required to establish the third communication link: uplink and downlink channel frequency bands, channel bandwidth, power saving period, rate supported by non-access point site equipment, and beam azimuth.

10. A communication method, characterized in that: include: The non-access point site device transmits a first data frame with the first access device via a first communication link; The non-access point site device receives configuration information sent by the first access device through a second communication link, where the configuration information is used by the non-access point site device to establish a third communication link with the second access device, wherein operating frequencies of the first communication link and the third communication link are within a first operating frequency range, and an operating frequency of the second communication link is within a second operating frequency range, and frequency values ​​included in the first operating frequency range are all greater than frequency values ​​included in the second operating frequency range.

11. The communication method according to claim 10, characterized in that: The first operating frequency range is 30 GHz to 300 GHz; the second operating frequency range is 410 MHz to 7125 MHz.

12. The communication method according to claim 10 or 11, characterized in that: The non-access point site device receives the configuration information sent by the first access device through the second communication link, including: The non-access point site device receives a second data frame sent by the first access device through a second communication link, wherein the second data frame carries the configuration information.

13. The communication method according to claim 12, characterized in that: The second data frame includes: a first data field, wherein the configuration information is set in the first data field.

14. The communication method according to claim 12 or 13, characterized in that: The second data frame includes: a first identification field, where the first identification field is used to instruct the non-access point site device to save the configuration information according to the received second data frame.

15. The communication method according to claim 14, characterized in that: The second data frame includes: a control field, and the first identification field is set in the control field.

16. The communication method according to any one of claims 12 to 15, characterized in that: Also includes: The non-access point site device receives a second data frame sent by the first access device, and saves the configuration information according to the second data frame; The non-access point site device sends a second data response frame to the first access device through a second communication link, wherein the second data response frame is used to indicate that the non-access point site device has saved the configuration information.

17. The communication method according to any one of claims 10 to 16, characterized in that: The configuration information includes: a key required to establish the third communication link.

18. The communication method according to claim 17, characterized in that: The configuration information also includes one or more of the following items required to establish the third communication link: uplink and downlink channel frequency bands, channel bandwidth, power saving period, rate supported by non-access point site equipment, and beam azimuth.

19. A communication method, characterized in that: include: The non-access point site device acquires configuration information, where the configuration information is used for the non-access point site device to establish a third communication link with the second access device; The non-access point site device sends configuration information to the second access device through a second communication link, wherein an operating frequency of the third communication link is within a first operating frequency range, an operating frequency of the second communication link is within a second operating frequency range, and frequency values ​​included in the first operating frequency range are all greater than frequency values ​​included in the second operating frequency range.

20. The communication method according to claim 19, characterized in that: The first operating frequency range is 30 GHz to 300 GHz; the second operating frequency range is 410 MHz to 7125 MHz.

21. The communication method according to claim 19 or 20, characterized in that: The non-access point site device sends configuration information to the second access device through the second communication link, including: The non-access point site device sends a third data frame to the second access device through a second communication link, wherein the third data frame carries the configuration information.

22. The communication method according to claim 21, characterized in that: The third data frame includes: a second data field, wherein the configuration information is set in the second data field.

23. The communication method according to claim 21 or 22, characterized in that: The third data frame includes: a second identification field, where the second identification field is used to instruct the second access device to establish a third communication link with the non-access point site device according to the received third data frame.

24. The communication method according to claim 23, characterized in that: The third data frame includes: a control field, and the second identification field is set in the control field.

25. A communication method, characterized in that: include: The second access device receives configuration information sent by the non-access point site device through the second communication link, where the configuration information is used for the non-access point site device to establish a third communication link with the second access device, wherein an operating frequency of the third communication link is within a first operating frequency range, an operating frequency of the second communication link is within a second operating frequency range, and frequency values ​​included in the first operating frequency range are all greater than frequency values ​​included in the second operating frequency range.

26. The communication method according to claim 25, characterized in that: The first operating frequency range is 30 GHz to 300 GHz; the second operating frequency range is 410 MHz to 7125 MHz.

27. The communication method according to claim 25 or 26, characterized in that: The second access device receives configuration information sent by the non-access point site device through the second communication link, including: The second access device receives a third data frame sent by the non-access point site device through a second communication link, wherein the third data frame carries the configuration information.

28. The communication method according to claim 27, characterized in that: The third data frame includes: a second data field, wherein the configuration information is set in the second data field.

29. The communication method according to claim 27 or 28, characterized in that: The third data frame includes: a second identification field, where the second identification field is used to instruct the second access device to establish a third communication link with the non-access point site device according to the received third data frame.

30. The communication method according to any one of claims 27 to 29, characterized in that: Also includes: The second access device receives a third data frame sent by the non-access point site device, and establishes a third communication link with the non-access point site device according to the third data frame; The second access device sends a third data response frame to the non-access point site device through the second communication link, wherein the third data response frame is used to indicate that the second access device has established a third communication link with the non-access point site device according to the received third data frame.

31. A communication device, characterized in that: include: Transmission unit and sending unit; The transmission unit is used to transmit a first data frame with a non-access point site device through a first communication link; The sending unit is configured to send configuration information to the non-access point site device through a second communication link, where the configuration information is used by the non-access point site device to establish a third communication link with the second access device, wherein the operating frequencies of the first communication link and the third communication link are within a first operating frequency range, the operating frequency of the second communication link is within a second operating frequency range, and the frequency values ​​included in the first operating frequency range are all greater than the frequency values ​​included in the second operating frequency range.

32. A communication device, characterized in that: The communication device comprises: a transmission unit and a receiving unit; The transmission unit is used to transmit a first data frame to a first access device via a first communication link; The receiving unit is used to receive configuration information sent by the first access device through a second communication link, where the configuration information is used for the non-access point site device to establish a third communication link with the second access device, wherein the operating frequencies of the first communication link and the third communication link are within a first operating frequency range, the operating frequency of the second communication link is within a second operating frequency range, and the frequency values ​​included in the first operating frequency range are all greater than the frequency values ​​included in the second operating frequency range.

33. A communication device, characterized in that: The communication device comprises: an acquisition unit and a sending unit; The acquisition unit is used to acquire configuration information, where the configuration information is used for the non-access point site device to establish a third communication link with the second access device; The sending unit is used to send the configuration information acquired by the acquiring unit to the second access device through a second communication link, wherein the operating frequency of the third communication link is within a first operating frequency range, the operating frequency of the second communication link is within a second operating frequency range, and the frequency values ​​included in the first operating frequency range are all greater than the frequency values ​​included in the second operating frequency range.

34. A communication device, characterized in that: The communication device comprises: a transmission unit and a processing unit; The transmission unit is configured to receive configuration information sent by a non-access point site device through a second communication link, wherein the configuration information is used for the non-access point site device to establish a third communication link with the second access device, wherein an operating frequency of the third communication link is within a first operating frequency range, an operating frequency of the second communication link is within a second operating frequency range, and frequency values ​​included in the first operating frequency range are all greater than frequency values ​​included in the second operating frequency range; The processing unit is configured to establish a third communication link with the non-access point site device according to the configuration information received by the transmission unit.

35. A communication device, characterized in that: The method comprises a processor and an interface circuit, wherein the processor is coupled to the interface circuit; The processor is used to execute a computer program or instruction stored in the memory, and control the interface circuit to execute the communication method according to any one of claims 1 to 30.

36. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program or instructions. When a computer reads and executes the computer program or instructions, the computer executes the method according to any one of claims 1 to 30.

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