CN115968568A

CN115968568A - Electronic device, wireless communication method, and computer-readable storage medium

Info

Publication number: CN115968568A
Application number: CN202180047643.XA
Authority: CN
Inventors: 温孟阁; 孙晨
Original assignee: Sony Group Corp
Current assignee: Sony Group Corp
Priority date: 2020-07-23
Filing date: 2021-07-16
Publication date: 2023-04-14
Also published as: WO2022017265A1; CN113973353A

Abstract

The present disclosure relates to an electronic device, a wireless communication method, and a computer-readable storage medium. An electronic device according to the present disclosure includes processing circuitry configured to: generating scanning control information, the scanning control information comprising frequency information of a plurality of channel groups, each of the plurality of channel groups comprising one or more channels; and transmitting the scanning control information to a user equipment so that the user equipment sequentially scans a plurality of frequency channels included in the scanning control information to connect to an access point device. With the electronic device, the wireless communication method and the computer-readable storage medium according to the present disclosure, a connection control process for the AP and the user equipment can be optimized, thereby shortening the time for the user equipment to access the AP and improving the communication quality of the AP and the user equipment.

Description

Electronic device, wireless communication method, and computer-readable storage medium

The present application claims priority from chinese patent application entitled "electronic device, wireless communication method, and computer-readable storage medium," filed by chinese patent office, application No. 2020107165.6, 23/7/2020, the entire contents of which are incorporated herein by reference.

Technical Field

Embodiments of the present disclosure relate generally to the field of wireless communications, and in particular, to electronic devices, wireless communication methods, and computer-readable storage media. More particularly, the present disclosure relates to an electronic device as a server in a wireless communication system, an electronic device as a user equipment in a wireless communication system, a wireless communication method performed by a server in a wireless communication system, a wireless communication method performed by a user equipment in a wireless communication system, and a computer-readable storage medium.

Background

The server may control a working channel and transmission power of an AP (Access Point) device, and the AP device operates in a set working channel after acquiring parameter configuration from the server. The user equipment may access the AP device by polling the channel list. After the user device scans the same frequency channel as the AP device, the AP device may be accessed to operate with the same frequency channel as the AP device. When the working channel of the AP device changes, the user device needs to re-access the AP device again by polling the channel list.

In the process of polling the channel list by the user equipment, the server sends a scanning instruction to the user equipment, and the user equipment scans the corresponding channel according to the scanning instruction and returns a scanning result to the server. And under the condition that the user equipment does not scan the same frequency channel as the AP equipment, the server sends a scanning instruction to the user equipment again, and the user equipment scans the corresponding frequency channel according to the scanning instruction and returns a scanning result to the server. And so on. That is, the server needs to transmit the instruction for scanning to the user equipment a plurality of times, thereby extending the time for polling the channel list and increasing the overhead. In addition, the user equipment scans a channel according to each instruction, and the scanning frequency band width of the user equipment may be larger than the frequency band width of the channel. For example, assuming that the frequency band width of one channel is 8MHz, and the scanning frequency band width of the user equipment is 24MHz, the user equipment needs to scan the frequency band width of 24MHz in order to determine whether the frequency band width of 8MHz is the operating frequency channel of the AP device, thereby prolonging the time for accessing the AP device.

Therefore, it is necessary to provide a technical solution to optimize the connection control process between the AP and the ue, so as to shorten the time for the ue to access the AP and improve the communication quality between the AP and the ue.

Disclosure of Invention

This section provides a general summary of the disclosure, and is not a comprehensive disclosure of its full scope or all of its features.

An object of the present disclosure is to provide an electronic device, a wireless communication method, and a computer-readable storage medium to optimize a connection control process for an AP and a user equipment, thereby shortening a time for the user equipment to access the AP and improving communication quality of the AP and the user equipment.

According to an aspect of the disclosure, there is provided an electronic device comprising processing circuitry configured to: generating scanning control information, the scanning control information comprising frequency information of a plurality of channel groups, each of the plurality of channel groups comprising one or more channels; and transmitting the scanning control information to a user equipment so that the user equipment sequentially scans a plurality of frequency channels included in the scanning control information to connect to an access point device.

According to another aspect of the present disclosure, there is provided an electronic device comprising processing circuitry configured to: receiving scanning control information from a server, the scanning control information including frequency information of a plurality of channel groups, each of the plurality of channel groups including one or more channels; and sequentially scanning a plurality of frequency channels included in the scanning control information to connect to the access point device.

According to another aspect of the present disclosure, there is provided a wireless communication method performed by an electronic device, including: generating scanning control information, the scanning control information comprising frequency information of a plurality of channel groups, each of the plurality of channel groups comprising one or more channels; and transmitting the scanning control information to a user equipment so that the user equipment sequentially scans a plurality of frequency channels included in the scanning control information to connect to an access point device.

According to another aspect of the present disclosure, there is provided a wireless communication method performed by an electronic device, including: receiving scanning control information from a server, the scanning control information including frequency information of a plurality of channel groups, each of the plurality of channel groups including one or more channels; and sequentially scanning a plurality of frequency channels included in the scanning control information to connect to the access point device.

According to another aspect of the present disclosure, there is provided a computer-readable storage medium comprising executable computer instructions that, when executed by a computer, cause the computer to perform a wireless communication method according to the present disclosure.

According to another aspect of the present disclosure, there is provided executable computer instructions which, when executed by a computer, cause the computer to perform a wireless communication method according to the present disclosure.

With the electronic device, the wireless communication method, and the computer-readable storage medium according to the present disclosure, frequency information of a plurality of channel groups is included in the scanning control information, so that the user equipment can sequentially scan the plurality of channels according to the scanning control information. Therefore, the user equipment can execute the whole process of polling the channel list only by receiving the scanning control information once, thereby shortening the time of accessing the AP by the user equipment and saving the signaling overhead.

Further areas of applicability will become apparent from the description provided herein. The description and specific examples in this summary are intended for purposes of illustration only and are not intended to limit the scope of the present disclosure.

Drawings

The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present disclosure. In the drawings:

FIG. 1 is a schematic diagram illustrating an application scenario according to an embodiment of the present disclosure;

fig. 2 is a block diagram illustrating an example of a configuration of an electronic device for a server according to an embodiment of the present disclosure;

fig. 3 is a signaling flow diagram illustrating a process of a user equipment establishing a connection with an AP according to an embodiment of the present disclosure;

fig. 4 is a signaling flow diagram illustrating a procedure in which a user equipment establishes a connection with an AP after switching a channel according to an embodiment of the present disclosure;

fig. 5 is a signaling flow diagram illustrating a process of determining, by a server, an AP to which a user equipment is connected, according to an embodiment of the present disclosure;

fig. 6 (a) and 6 (b) are scene diagrams illustrating changing an AP to which a user equipment is connected by changing a transmission power of the AP according to an embodiment of the present disclosure;

fig. 7 is a signaling flow diagram illustrating an AP to which a user equipment is connected by changing a transmission power of the AP according to an embodiment of the present disclosure;

fig. 8 is a block diagram illustrating an example of a configuration of an electronic device for a user device according to an embodiment of the present disclosure;

fig. 9 is a flowchart illustrating a wireless communication method performed by an electronic device for a server according to an embodiment of the present disclosure;

fig. 10 is a flowchart illustrating a wireless communication method performed by an electronic device for a user equipment according to an embodiment of the present disclosure;

FIG. 11 is a block diagram illustrating an example of a server that may implement an electronic device according to the present disclosure;

fig. 12 is a block diagram showing a first example of a schematic configuration of an eNB (Evolved Node B);

fig. 13 is a block diagram showing a second example of the schematic configuration of an eNB;

fig. 14 is a block diagram showing an example of a schematic configuration of a smartphone; and

fig. 15 is a block diagram showing an example of a schematic configuration of a car navigation apparatus.

While the disclosure is susceptible to various modifications and alternative forms, specific embodiments thereof have been shown by way of example in the drawings and are herein described in detail. It should be understood, however, that the description herein of specific embodiments is not intended to limit the disclosure to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the disclosure. It is noted that throughout the several views, corresponding reference numerals indicate corresponding parts.

Detailed Description

Examples of the present disclosure will now be described more fully with reference to the accompanying drawings. The following description is merely exemplary in nature and is not intended to limit the present disclosure, application, or uses.

Example embodiments are provided so that this disclosure will be thorough, and will fully convey the scope to those skilled in the art. Numerous specific details are set forth such as examples of specific components, devices, and methods to provide a thorough understanding of embodiments of the present disclosure. It will be apparent to those skilled in the art that specific details need not be employed, that example embodiments may be embodied in many different forms and that neither should be construed to limit the scope of the disclosure. In certain example embodiments, well-known processes, well-known structures, and well-known technologies are not described in detail.

The description will be made in the following order:

1. a description of a scene;

2. a configuration example of a server;

3. a configuration example of a user equipment;

4. a method embodiment;

5. application examples.

<1. Description of the scene >

Fig. 1 is a schematic diagram illustrating an application scenario of the present disclosure. As shown in fig. 1, the wireless communication system includes a server, an AP, and two user equipments. Here, fig. 1 shows only an example in which the wireless communication system includes one AP and two user equipments. In practice, a wireless communication system may include one or more APs, and one or more user devices.

In the scenario shown in fig. 1, the server may control an operating channel and a transmission power of the AP device, and the AP device operates in the set operating channel after acquiring the parameter configuration from the server. Each user device may access the AP device by polling the channel list to operate on the same channel as the AP device.

The present disclosure proposes an electronic device in a wireless communication system, a wireless communication method performed by the electronic device in the wireless communication system, and a computer-readable storage medium for such a scenario, so as to optimize a connection control procedure for an AP and a user equipment, thereby shortening a time for the user equipment to access the AP and improving communication quality of the AP and the user equipment.

The wireless communication system according to the present disclosure may be a 5G NR (New Radio) communication system.

The AP according to the present disclosure may be a BTS (Base Transceiver Station), a router, or the like.

The server according to the present disclosure may be integrated in a network side device that provides a service for a user equipment. The network side device according to the present disclosure may be a base station device, for example, an eNB, or may be a gNB (base station in a 5 th generation communication system). Optionally, a server according to the present disclosure may also be integrated in the AP. In addition, the server may be an electronic device independent of the network side device and the AP. Further, the server may be located in the cloud. In one example, a server according to the present disclosure may be a database, preferably a TV (television) spectrum database.

The user equipment according to the present disclosure may be a mobile terminal such as a smart phone, a tablet Personal Computer (PC), a notebook PC, a portable game terminal, a portable/cryptographic dog-type mobile router, and a digital camera, or an in-vehicle terminal such as a car navigation apparatus. The user equipment may also be implemented as a terminal (also referred to as a Machine Type Communication (MTC) terminal) that performs machine-to-machine (M2M) communication. Further, the user equipment may be a wireless communication module (such as an integrated circuit module including a single chip) mounted on each of the above-described terminals. For example, the user Equipment may be a site Equipment (station) or a CPE (Customer Premise Equipment).

The wireless communication system according to the present disclosure may be applied to various scenarios. For example, in a live TV scenario, an AP may connect to a TV spectrum database and a station device (station) connects to the AP. Each station device may be connected to multiple cameras, or each station device of the multiple station devices is connected to a camera, so that the traffic monitoring software of the cameras is used to view the data traffic condition in the wireless network. For a rural web TV network, the AP may be connected to a TV spectrum database. A station device (station) may connect to the AP through one or more relay station devices. The antenna in a fixed direction can be used at a high position and the miniaturized antenna can be used at a low position aiming at wireless security video networks of communities, campuses, scenic spots and the like. For a venue event activity wireless network, the antenna coverage may be selected for the venue shape, such as circular venue coverage and linear venue coverage. The scenario in which the wireless communication system of the present disclosure is applied is described above in an exemplary manner, but the present disclosure is not limited to the scenario described above.

<2. Example of configuration of server >

Fig. 2 is a block diagram illustrating an example of a configuration of an electronic apparatus 200 according to an embodiment of the present disclosure. The electronic device 200 herein may act as a server in a wireless communication system.

As shown in fig. 2, the electronic device 200 may include a generation unit 210 and a communication unit 220.

Here, each unit of the electronic device 200 may be included in the processing circuit. It should be noted that the electronic device 200 may include one processing circuit or may include a plurality of processing circuits. Further, the processing circuitry may include various discrete functional units to perform various different functions and/or operations. It should be noted that these functional units may be physical entities or logical entities, and that units called differently may be implemented by the same physical entity.

According to an embodiment of the present disclosure, the generation unit 210 may generate scan control information. The scan control information includes frequency information of a plurality of channel groups, each of the plurality of channel groups including one or more channels.

According to an embodiment of the present disclosure, the electronic device 200 may transmit the scanning control information to the user equipment through the communication unit 220, so that the user equipment sequentially scans a plurality of frequency channels included in the scanning control information to connect to the access point device.

As can be seen, according to the electronic device 200 of the embodiment of the present disclosure, the generated scanning control information includes frequency information of a plurality of channel groups, so that the user equipment can sequentially scan a plurality of channels according to the scanning control information. Therefore, the user equipment can execute the whole process of polling the channel list only by receiving the scanning control information once, thereby shortening the time of accessing the AP by the user equipment and saving the signaling overhead.

According to the embodiment of the present disclosure, the frequencies of the plurality of channel groups included in the scanning control information generated by the generation unit 210 do not overlap. That is, there is no overlapping channel between any one channel group of the plurality of channel groups and the other channel groups. For example, a first channel group of the plurality of channel groups includes channels 1, 2, and 3, a second channel group of the plurality of channel groups includes channels 4, 5, and 6, and there are no overlapping channels between the first channel group and the second channel group. In this way, the user equipment scans the first channel group and the second channel group in turn, i.e., scans channels 1, 2, 3, 4, 5, and 6 in turn.

In the known polling scanning process, the user equipment scans a channel according to each instruction, and the scanning bandwidth of the user equipment may be greater than the bandwidth of a channel. For example, assuming that the channels are numbered 1, 2, 3, \ 8230sequentially, the frequency band width of one channel is 8MHz, and the scanning frequency band width of the user equipment is 24MHz, when the user equipment needs to scan the channel 2, the user equipment actually scans the channels 1, 2 and 3; when the user equipment needs to scan channel 3, the user equipment actually scans channels 2, 3, and 4. That is, there is overlap between the channels that the user device scans each time. However, according to the embodiment of the present disclosure, channels having no overlap between channel groups included in the scanning control information are scanned, thereby reducing the time of the scanning process. In addition, in the case where each channel group includes a plurality of channels, the user equipment can simultaneously scan the plurality of channels, thereby improving the efficiency of scanning.

According to an embodiment of the present disclosure, the frequency information of the plurality of channel groups included in the scanning control information generated by the generation unit 210 may include a start frequency and an end frequency of each channel group. For example, assuming that the first channel group includes channels 1, 2, and 3, the frequency information of the plurality of channel groups may include a start frequency of channel 1 and an end frequency of channel 3; assuming that the second channel group includes channels 4, 5, and 6, the frequency information of the plurality of channel groups may further include a start frequency of channel 4 and an end frequency of channel 6; and so on. That is, the start frequency of each channel group refers to the start frequency of the first channel in each channel group, and the end frequency of each channel group refers to the end frequency of the last channel in each channel group. It is noted that although the scanning control information is described with the frequency bands of the channel group being adjacent, the frequency bands of the channel group may not be adjacent. For example, the first channel group includes channels 1, 2, and 3, and the second channel group includes channels 6, 7, and 8.

According to an embodiment of the present disclosure, the frequency information of the plurality of channel groups included in the scanning control information generated by the generation unit 210 may also include a start frequency of a first channel group of the plurality of channel groups, an end frequency of a last channel group, and a frequency band width of each channel group. This case is applicable to a case where the band width of each channel group is the same and the bands of the respective channel groups are adjacent.

In the present disclosure, the position occupied by each channel in the frequency domain is referred to as a frequency band, for example, the frequency band of channel a is 800-808MHz. The channel group includes one or more channels. The width occupied by the frequency channel in the frequency domain is called the frequency band width of the frequency channel, for example, the frequency band width of the above-mentioned frequency channel a is 8MHz. The width occupied by a channel group in the frequency domain is referred to as the bin width of the channel group. For example, if the channel group includes three channels, and the frequency band width of each channel is 8MHz, the frequency band width of the channel group is 24MHz. In addition, the scanning frequency band width of the user equipment refers to the frequency band width that the user equipment can scan in each scanning process.

Assume that there are three channel groups, a first channel group comprising channels 1, 2 and 3, a second channel group comprising channels 4, 5 and 6, and a third channel group comprising channels 7, 8 and 9. That is, each channel group includes three channels, and assuming that the frequency band width of each channel is 8MHz, the frequency information of the plurality of channel groups may include a start frequency of channel 1, an end frequency of channel 9, and a frequency band width of 24MHz of each channel group.

As described above, according to an embodiment of the present disclosure, the scanning control information includes frequency information of a plurality of channel groups. In practice, the scan control information implicitly includes the order information of the plurality of channel groups. In the case where the frequency information of the plurality of channel groups includes the start frequency and the end frequency of each channel group, the frequency information of the plurality of channel groups may include the start frequency and the end frequency of each channel group in order information of the plurality of channel groups. In the case where the frequency information of the plurality of channel groups includes a start frequency of a first channel group in the plurality of channel groups, an end frequency of a last channel group, and a band width of each channel group, an order of the plurality of channel groups is an order from the first channel group to the last channel group (i.e., a frequency is from small to large, or from large to small) in the frequency domain. In this way, the user equipment can sequentially scan channels in the plurality of channel groups according to the order information of the plurality of channel groups.

As described above, according to an embodiment of the present disclosure, the scan control information generated by the generation unit 210 may be for a user equipment. That is, the scanning control information may be different for different user equipments. In addition, the electronic apparatus 200 may transmit the scanning control information to the user equipment through an AP to which the user equipment is connected (i.e., an AP to which the user equipment accesses).

According to an embodiment of the present disclosure, the electronic device 200 may receive a scanning speed of the user equipment and/or a scanning frequency band width of the user equipment from the user equipment through the communication unit 220. Further, the electronic device 200 may also determine the location information of the user equipment by reporting the location information by the user equipment or by locating the user equipment according to any one of the locating methods in the art. Thus, the electronic device 200 may determine the scanning control information according to at least one of the following parameters: the scanning speed of the user equipment, the scanning frequency band width of the user equipment, the position information of the user equipment and the available channel information.

According to an embodiment of the present disclosure, the electronic device 200 may determine the number of channels included in each channel group for the user equipment according to a scanning speed of the user equipment and/or a scanning frequency band width of the user equipment. For example, the faster the scanning speed of the user equipment, the greater the number of channels that each channel group may include. For another example, the larger the scanning frequency band width of the user equipment is, the larger the number of channels included in each channel group may be. In addition, the electronic device 200 may determine the number of channels included in each channel group according to the scanning speed and the scanning frequency band width of the user equipment.

According to an embodiment of the present disclosure, the electronic device 200 may determine channels included in a plurality of channel groups, i.e., channels that the user device needs to scan, according to the location information of the user device and/or available channel information. For example, the electronic device 200 may select some channels with better quality from all available channels according to the location information of the user equipment as the channels that the user equipment needs to scan.

As described above, after the electronic apparatus 200 determines the channels that the user equipment needs to scan and the number of channels included in each channel group, the channels that the user equipment needs to scan may be divided into a plurality of channel groups, and thus scanning control information may be generated.

According to the embodiment of the present disclosure, when the user equipment has not accessed any AP, such scanning control information may be preset in the user equipment, so that the user equipment performs channel scanning according to the preset scanning control information when accessing the AP for the first time. In the case that the user equipment has accessed the AP, the electronic device 200 may periodically or event-wise generate the scanning control information, so as to transmit the scanning control information to the user equipment through the AP that the user equipment has accessed, so that the user equipment may rely on such scanning control information when performing channel scanning next time.

Fig. 3 is a signaling flow diagram illustrating a procedure for a user equipment to establish a connection with an AP according to an embodiment of the present disclosure. In fig. 3, the server may be implemented by the electronic device 200. As shown in fig. 3, in step S301, the server has established a connection with the AP. In step S302, the server generates scanning control information for the user equipment and transmits the scanning control information to the AP to which the user equipment is accessed. Next, in step S303, the AP forwards the scanning control information to the user equipment. Next, when channel scanning needs to be performed next time (for example, the user equipment is disconnected from the AP due to channel change by the AP), the user equipment may sequentially scan each channel group according to the scanning control information. For example, in step S304, the user equipment scans channels included in the first channel group. In step S305, the user equipment scans channels included in the second channel group. Up to step S306, the user equipment scans channels included in the nth channel group. It is assumed here that in step S307, a response is received from the AP, and thus, the user equipment can connect to the AP.

As described above, according to the electronic apparatus 200 of the embodiment of the present disclosure, the generated scanning control information includes the frequency information of the plurality of channel groups, so that the user equipment can sequentially scan the plurality of channels according to the scanning control information. Therefore, the user equipment can execute the whole process of polling the channel list only by receiving the scanning control information once, thereby shortening the time of accessing the AP by the user equipment and saving the signaling overhead.

According to an embodiment of the present disclosure, as shown in fig. 2, the electronic device 200 may further include a frequency channel determination unit 240 for determining frequency channels of the respective access point devices managed by the electronic device 200. Further, the electronic apparatus 200 may transmit the frequency channel of the access point apparatus to the access point apparatus through the communication unit 220, thereby enabling the access point apparatus to operate according to the received frequency channel.

According to an embodiment of the present disclosure, the frequency channel determining unit 240 may determine the frequency channel of the access point device according to interference information of each frequency channel. For example, the frequency channel determination unit 240 may select a frequency channel with less interference among available frequency channels as the frequency channel of the access point device. In the initial access process of the access point device, the frequency channel determining unit 240 may determine an initial access frequency channel of the access point device according to the interference information of each frequency channel; in a case where the access point device has accessed the electronic device 200, the frequency channel determining unit 240 may determine the frequency channel after switching of the access point device according to the interference information of the respective frequency channels.

According to an embodiment of the present disclosure, the electronic device 200 may receive interference information for various frequency channels from one or more interference sensing devices. Here, one or more interference sensing devices may be integrated in one or more access point devices, or may be provided as sensing devices separate from the access point devices. One or more interference sensing devices may periodically sense interference of each channel and report the interference of each channel to the electronic device 200.

According to an embodiment of the present disclosure, the electronic device 200 may configure the interference sensing device with the frequency channels that need to be sensed, and one interference sensing device may sense one or more frequency channels. When a plurality of interference sensing devices report interference sensing results of the same channel, the electronic device 200 may process the interference sensing results, for example, average the interference sensing results to determine the interference of the channel.

According to the embodiment of the present disclosure, the electronic device 200 may further determine periodic frequency hopping information of the access point device according to the interference information of the respective frequency channels, and the periodic frequency hopping information may include information of an operating frequency channel of the access point device in each of the next plurality of periods. For example, the electronic device may select a frequency channel with less interference in each period as an operating frequency channel of the access point device in the period.

Further, the electronic device 200 may transmit the periodic frequency hopping information to the access point device. In this way, the access point device can sequentially change the operating frequency channel in the next multiple periods according to the periodic frequency hopping information.

According to an embodiment of the present disclosure, the electronic device 200 may further transmit the periodic frequency hopping information to a user device connected to the access point device through the access point device. In this way, the user equipment can sequentially change the operating frequency channel in the next multiple periods according to the periodic frequency hopping information. Optionally, the electronic device 200 may further send the periodic frequency hopping information by using a fixed time-frequency resource, and the user equipment acquires the periodic frequency hopping information by listening to the time-frequency resource. According to the embodiment of the present disclosure, the electronic device 200 may set different time-frequency resources for different user equipments, so that each user equipment listens to the periodic frequency hopping information on different time-frequency resources.

As described above, according to the embodiments of the present disclosure, the electronic apparatus 200 may select an operating frequency channel of the access point apparatus according to interference of each frequency channel, thereby ensuring a good network environment. In addition, the electronic device 200 may further set periodic frequency hopping information so that the access point device and the user device may periodically change the operating frequency.

According to an embodiment of the present disclosure, as shown in fig. 2, the electronic device 200 may further include a switching triggering unit 230 for determining that a channel of the access point device needs to be switched. For example, in a case where the electronic device 200 finds that the operating frequency channel of the access point device is degraded due to factors such as interference, the switching triggering unit 230 may determine that the frequency channel of the access point device needs to be switched.

According to an embodiment of the present disclosure, in the case that the switching triggering unit 230 determines that the channel of the access point device needs to be switched, the channel determining unit 240 may determine the switched channel of the access point device, and the electronic device 200 may transmit the switched channel information to the access point device through the communication unit 220 for the access point device to transmit the switched channel information to the user device.

According to the embodiment of the present disclosure, the access point device may further send a switching trigger command to the user equipment, so that the user equipment may establish connection with the access point device by using the switched frequency channel instead of the switched frequency channel after receiving the switching trigger command, and meanwhile, the access point device may establish connection with the electronic device 200 by using the switched frequency channel. Therefore, the access point equipment and the user equipment can be switched to the switched frequency channel to work simultaneously.

Fig. 4 is a signaling flow diagram illustrating a procedure in which a user equipment establishes a connection with an AP after switching a channel according to an embodiment of the present disclosure. In fig. 4, the server may be implemented by the electronic device 200. In step S401, the server establishes a connection with the AP. In step S402, the server determines to switch the channel of the AP. Next, in step S403, the server determines the switched channel of the AP. Next, in step S404, the server transmits the switched channel to the AP. Next, in step S405, the AP transmits the switched channel to the user equipment. Next, in step S406, the ue returns confirmation information confirming the reception of the switched channel to the AP. Next, in step S407, the AP transmits a handover trigger command to the user equipment. Next, in step S408, the user equipment establishes a connection with the AP using the switched channel and the AP establishes a connection with the server using the switched channel.

In the existing connection process between the AP and the ue, when the working channel of the AP changes, the connection between the ue and the AP is disconnected, and the ue needs to poll the channel list again to determine the working channel after the AP is switched. According to the embodiment of the present disclosure, after the AP receives the switched channel, the AP does not immediately switch to a new channel, but transmits the switched channel to the user equipment. Therefore, the user equipment can directly access the switched channel without executing the process of polling the channel list, so that the user equipment and the AP can be switched to the switched channel at the same time, the switching time is shortened, and the switching process is simplified.

According to an embodiment of the present disclosure, in an existing process of scanning a channel list, an order in which respective user equipments scan channels is the same. For example, each user device scans in the order of channels 1, 2, 3, \ 8230;. Thus, the access point device with the higher operating frequency channel is connected to a larger number of users, and the access point device with the lower operating frequency channel is connected to a smaller number of users. Therefore, the loads of the respective access point devices are unbalanced, so that the channel quality and the allocation of resources are not uniform.

According to an embodiment of the present disclosure, as shown in fig. 2, the electronic device 200 may further include an access point determining unit 250 configured to determine, for each user device, an access point device connected to the user device.

According to an embodiment of the present disclosure, the access point determining unit 250 may determine the access point devices connected to the user devices according to the number of user devices to which the respective access point devices are connected.

According to an embodiment of the present disclosure, the electronic device 200 may receive the load number of each access point device from the access point device. For example, the electronic device 200 may periodically receive the load number of the access point device from each access point device. Alternatively, the access point device may report the load number of the access point device to the electronic device 200 whenever the load number changes.

According to an embodiment of the present disclosure, the access point determining unit 250 may switch one or more user equipments connected with an access point device with a high load number to an access point device with a low load number, i.e., determine that the access point device connected with the one or more user equipments is the access point device with a low load number. For example, if the access point device 1 is connected to 6 user devices and the access point device 2 is connected to 2 user devices, the access point determining unit 250 may re-determine the access point devices of the 2 user devices connected to the access point device 1 as the access point device 2, so that the user devices connected to the access point device 1 and the access point device 2 are both 4.

According to an embodiment of the present disclosure, after the access point determining unit 250 determines an access point device connected to the user device, the electronic device 200 may transmit channel information of the access point device to the user device through the communication unit 220 for the user device to connect to the switched access point device.

Fig. 5 is a signaling flow diagram illustrating a process of determining an AP to which a user equipment is connected by a server according to an embodiment of the present disclosure. In fig. 5, the server may be implemented by the electronic device 200. In step S501, the server establishes a connection with the current AP. In step S502, the current AP establishes a connection with the user equipment. Next, in step S503, the server rearranges the load of each AP, thereby determining a switched AP for some user equipments. Next, in step S504, the server transmits channel information of the switched AP of the user equipment to the AP to which the user equipment is currently connected. Next, in step S505, the AP to which the user equipment is currently connected transmits the channel information of the switched AP to the user equipment. Next, in step S506, the ue establishes a connection with the switched AP by using the channel of the switched AP.

As described above, according to an embodiment of the present disclosure, the electronic apparatus 200 may reallocate user equipments connected to respective access point devices to average the number of loads connected to the respective access point devices, thereby improving channel quality. Such operation of the electronic device 200 may be periodic, that is, the access point determining unit 250 may periodically determine the user devices connected to the respective access point devices according to the load numbers of the respective access point devices, thereby determining the switched access point devices of the user devices requiring switching. Alternatively, such an operation of the electronic device 200 may also be event-triggered, that is, in a case that the load number of a certain access point device is greater than a predetermined threshold, the access point determining unit 250 may determine the user devices connected to the respective access point devices according to the load numbers of the respective access point devices, so as to determine the access point devices after handover of the user devices that need to be handed over.

According to an embodiment of the present disclosure, the generation unit 210 may make the order of the plurality of channel groups included in the scan control information of the partial user devices the same and the order of the plurality of channel groups included in the scan control information of the partial user devices the different when determining the scan control information for the respective user devices. For example, assuming that channel group a includes channels 1, 2, 3, channel group B includes channels 4, 5, 6, and channel group C includes channels 7, 8, 9, electronic device 200 may group all user devices into a plurality of groups, each group including one or more user devices. The sequence of the plurality of channel groups of the first group of user equipment is channel group a, channel group B and channel group C, the sequence of the plurality of channel groups of the second group of user equipment is channel group B, channel group C and channel group a, the sequence of the plurality of channel groups of the third group of user equipment is channel group C, channel group a and channel group B, the sequence of the plurality of channel groups of the fourth group of user equipment is channel group a, channel group C and channel group B, and so on.

According to an embodiment of the present disclosure, the generation unit 210 may make the order of a plurality of channel groups included in the scanning control information for different user equipments different when determining the scanning control information for each user equipment. For example, assume that channel group a includes channels 1, 2, and 3, channel group B includes channels 4, 5, and 6, channel group C includes channels 7, 8, and 9, the order of the channel groups of the first ue is channel group a, channel group B, and channel group C, the order of the channel groups of the second ue is channel group B, channel group C, and channel group a, the order of the channel groups of the third ue is channel group C, channel group a, and channel group B, the order of the channel groups of the fourth ue is channel group a, channel group C, and channel group B, and so on.

As described above, according to an embodiment of the present disclosure, the electronic device 200 may configure the order of scanning channels for the user devices such that the order in which the respective user devices scan channels is different, or the order in which some user devices scan channels is different. In this way, the user equipments scan the channels in different scanning orders, so that the number of user equipments accessing each access point device is relatively uniform.

As described above, two methods of balancing the load of the respective access point devices are described. In the first method, the electronic apparatus 200 rearranges the user apparatuses to which the respective access point apparatuses are connected according to the number of loads of the respective access point apparatuses. In a second method, the electronic device 200 sets the channel scanning order differently for different or portions of the user device. According to the embodiment of the present disclosure, the electronic device 200 may implement the above two methods separately, or may combine the two methods. For example, the electronic device 200 may set different channel scanning orders of different or partial user devices as described above, and then rearrange the user devices connected to the respective access point devices according to the number of loads of the respective access point devices.

Fig. 6 (a) and 6 (b) are scene diagrams illustrating an AP to which a user equipment is connected by changing a transmission power of the AP according to an embodiment of the present disclosure. In fig. 6 (a) and 6 (b), at point P, the user equipment configures the main access point AP1 and the auxiliary access point AP2 for the user equipment, the AP1 and the AP2 use adjacent frequency channels, and the user equipment at point P can monitor the quality of the frequency channel used by the AP1 and the quality of the frequency channel used by the AP2. Quality includes, but is not limited to, SNR (signal to noise ratio).

As shown in fig. 6 (a), AP1 operates at normal transmission power, a larger oval area shows the coverage area of AP1, AP2 operates at lower transmission power, and a smaller oval area shows the coverage area of AP2. That is, the ue at point P is located in the coverage of AP1 and out of the coverage of AP2, and thus operates on the operating frequency channel of AP 1.

According to an embodiment of the present disclosure, as shown in fig. 2, the electronic device 200 may further include a power control unit 260. In the scenario described above, in a case where the electronic device 200 determines that the user device needs to be switched from the primary access point device to the secondary access point device, the power control unit 260 may decrease the transmission power of the access point device to which the user device is currently connected and increase the transmission power of the access point device after the switching. For example, the electronic device 200 may determine that the user device should handoff to the secondary access point device by determining that interference exists with the operating frequency of the primary access point device.

As shown in fig. 6 (b), the coverage becomes smaller since the transmission power of the AP1 is reduced, and the coverage becomes larger since the transmission power of the AP2 is increased. The user equipment at point P is located within the coverage of AP2 and outside the coverage of AP 1. In this case, the user equipment monitors that the quality of the channel used by AP1 is much lower than the quality of the channel used by AP2, and can therefore switch to the channel used by AP2.

Fig. 7 is a signaling flow diagram illustrating an AP to which a user equipment is connected is changed by changing a transmission power of the AP according to an embodiment of the present disclosure. In fig. 7, the server may be implemented by the electronic device 200. As shown in fig. 7, in step S701, the server establishes a connection with the AP 1. In step S702, the user equipment establishes a connection with AP 1. In step S703, the server determines that the user equipment should be handed over to AP2. In step S704, the server decreases the transmission power of AP 1. In step S705, the server increases the transmission power of the AP2. In this way, in step S706, the user equipment establishes a connection with the AP2.

As described above, according to the embodiments of the present disclosure, a primary access point device and a secondary access point device may be configured for a user equipment, and an access point device accessed by the user equipment may be changed by changing the transmission power of the access point device, so that handover of the access point device may be implemented without changing the location of the user equipment.

The electronic apparatus 200 according to the embodiment of the present disclosure is described above. According to the electronic device 200 of the embodiment of the present disclosure, the generated scanning control information includes frequency information of a plurality of channel groups, and the user equipment can perform the entire process of polling the channel list only by receiving the scanning control information once. Further, each channel group may include one or more channels so that the user device may scan one or more channels simultaneously. Further, the electronic device 200 may select an operating frequency channel of the access point device according to interference of each frequency channel, thereby ensuring a good network environment. In addition, the electronic device 200 may further set periodic frequency hopping information so that the access point device and the user device can periodically change the operating frequency. Further, the AP may send the switched channel to the user equipment, and the user equipment may directly access the switched channel without performing a process of polling the channel list, thereby shortening the switching time. Further, the electronic device 200 may rearrange the user devices connected to the respective access point devices according to the load numbers of the respective access point devices, or set different or partial channel scan orders of the user devices differently, thereby uniformizing the load numbers of the respective access point devices. In addition, the electronic device 200 may change the access point device accessed by the user equipment by changing the transmission power of the access point device, so that the handover of the access point device may be implemented without changing the location of the user equipment. In summary, according to the embodiments of the present disclosure, the connection control process for the AP and the user equipment may be optimized, and the communication quality between the AP and the user equipment may be improved.

<3. Configuration example of user equipment >

Fig. 8 is a block diagram illustrating a structure of an electronic device 800 serving as a user equipment in a wireless communication system according to an embodiment of the present disclosure. The user equipment here may be CPE or station equipment (station).

As shown in fig. 8, the electronic device 800 may include a communication unit 810 and a control unit 820.

Here, each unit of the electronic device 800 may be included in the processing circuit. It is noted that the electronic device 800 may include one processing circuit or may include a plurality of processing circuits. Further, the processing circuitry may include various discrete functional units to perform various different functions and/or operations. It should be noted that these functional units may be physical entities or logical entities, and units called differently may be implemented by the same physical entity.

According to an embodiment of the present disclosure, the electronic device 800 may receive scan control information from a server through the communication unit 810, the scan control information including frequency information of a plurality of channel groups, each of the plurality of channel groups including one or more channels.

According to an embodiment of the present disclosure, the control unit 820 may control the electronic device 800 to sequentially scan a plurality of frequency channels included in the scan control information to connect to the access point device.

As described above, according to the electronic device 800 of the embodiment of the present disclosure, since the scanning control information includes the frequency information of the plurality of channel groups, the electronic device 800 may perform the entire process of polling the channel list only by receiving the scanning control information once, thereby saving the time for channel scanning.

According to an embodiment of the present disclosure, the frequency information of the plurality of channel groups may include a start frequency and an end frequency of each channel group. Alternatively, the frequency information of the plurality of channel groups may include a start frequency of a first channel group of the plurality of channel groups, an end frequency of a last channel group, and a band width of each channel group. Thus, the electronic apparatus 800 may determine the position of each channel group on the frequency domain from the frequency information of the plurality of channel groups.

According to an embodiment of the present disclosure, the scan control information may further include order information of the plurality of channel groups. For example, in the case where the frequency information of the plurality of channel groups includes a start frequency and an end frequency of each channel group, the frequency information of the plurality of channel groups may include the start frequency and the end frequency of each channel group in the order of the plurality of channel groups. In the case where the frequency information of the plurality of channel groups includes a start frequency of a first channel group in the plurality of channel groups, an end frequency of a last channel group, and a band width of each channel group, an order of the plurality of channel groups is an order from the first channel group to the last channel group (i.e., a frequency is from small to large, or from large to small) in the frequency domain. In this way, the electronic device 800 may determine the order of the plurality of channel groups and the location of each channel group on the frequency domain.

According to an embodiment of the present disclosure, the electronic apparatus 800 may sequentially scan channels included in each channel group according to an order of the plurality of channel groups. For example, the first channel group includes channels 1, 2, 3, the second channel group includes channels 4, 5, 6, and the third channel group includes channels 7, 8, 9. The control unit 820 may control the electronic device 800 to scan channels 1, 2, and 3 included in the first channel group, then scan channels 4, 5, and 6 included in the second channel group, and then scan channels 7, 8, and 9 in the third channel group.

According to an embodiment of the present disclosure, the electronic device 800 may transmit the scanning speed of the electronic device 800 and/or the scanning frequency band width of the electronic device 800 to the server through the communication unit 810 for the server to determine the scanning control information.

According to an embodiment of the present disclosure, the electronic device 800 may receive the switched channel information of the access point device from the access point device connected thereto through the communication unit 810. Further, the control unit 820 may control the electronic device 800 to switch to the switched frequency channel to connect to the access point device.

According to an embodiment of the present disclosure, the electronic device 800 may receive a handover trigger command from an access point device through the communication unit 810. Further, after receiving the switching trigger command, the control unit 820 may control the electronic device 800 to switch to the switched channel.

As described above, according to the embodiment of the present disclosure, the electronic device 800 may directly acquire the switched channel of the access point device from the access point device, so that the switched channel may be directly accessed without performing a process of polling a channel list, thereby shortening the time for switching.

According to an embodiment of the present disclosure, the electronic device 800 may receive channel information of other access point devices from an access point device connected to the electronic device 800 through the communication unit 810. Further, the control unit 820 may control the electronic device 800 to switch to a frequency channel of the other access point device to connect to the other access point device.

As described above, the server may adjust the load number of each access point device, so that the electronic device 800 may directly obtain the frequency channel of the switched access point device from the access point device connected thereto, thereby accessing the switched access point device.

As described above, the electronic device 800 can perform the entire process of polling the channel list only by receiving the scanning control information once, thereby saving the time for channel scanning. In the case where the channel group includes a plurality of channels, the electronic apparatus 800 may simultaneously scan the plurality of channels, thereby improving scanning efficiency. Further, the electronic device 800 may directly obtain the switched channel of the access point device from the access point device, so that the switched channel may be directly accessed without performing a process of polling the channel list, thereby shortening the switching time. In addition, the electronic device 800 may also directly acquire the frequency channel of the access point device after switching from the access point device connected thereto, thereby accessing the access point device after switching.

<4. Method example >

A wireless communication method performed by the electronic apparatus 200 as a server in a wireless communication system according to an embodiment of the present disclosure will be described in detail next.

Fig. 9 is a flowchart illustrating a wireless communication method performed by the electronic apparatus 200 as a network side apparatus in the wireless communication system according to an embodiment of the present disclosure.

As shown in fig. 9, in step S910, scan control information is generated, the scan control information including frequency information of a plurality of channel groups, each of the plurality of channel groups including one or more channels.

Next, in step S920, scanning control information is transmitted to the user equipment, so that the user equipment sequentially scans a plurality of frequency channels included in the scanning control information to connect to the access point device.

Preferably, the frequency information of the plurality of channel groups includes a start frequency and an end frequency of each channel group, or the frequency information of the plurality of channel groups includes a start frequency of a first channel group, an end frequency of a last channel group, and a band width of each channel group.

Preferably, the wireless communication method further includes: determining the scan control information according to at least one of the following parameters: the scanning speed of the user equipment, the scanning frequency band width of the user equipment, the position information of the user equipment and the available channel information.

Preferably, the wireless communication method further includes: determining channel information of the access point equipment after switching; and sending the switched channel information to the access point equipment, so that the access point equipment sends the switched channel information to the user equipment.

Preferably, the wireless communication method further includes: for each user equipment, determining an access point device connected with the user equipment; and transmitting the channel information of the access point device to the user equipment for the user equipment to connect to the access point device.

Preferably, determining the access point device connected to the user equipment comprises: the access point devices connected with the user devices are determined according to the number of the user devices connected with each access point device.

Preferably, the wireless communication method further includes: the order of the plurality of channel groups included in the scanning control information for different user equipments is made different.

Preferably, the wireless communication method further includes: aiming at each access point device, determining a frequency channel of the access point device according to the interference information of each frequency channel; and transmitting the channel information of the access point device to the access point device.

Preferably, the wireless communication method further includes: interference information for each frequency channel is received from one or more interference sensing devices.

Preferably, the wireless communication method further comprises: determining the switched access point equipment of the user equipment; and reducing the transmission power of the access point equipment currently connected with the user equipment, and increasing the transmission power of the switched access point equipment.

According to an embodiment of the present disclosure, the subject performing the above method may be the electronic device 200 according to an embodiment of the present disclosure, and thus all the embodiments described hereinbefore with respect to the electronic device 200 are applicable thereto.

A wireless communication method performed by the electronic device 800 as a user equipment in a wireless communication system according to an embodiment of the present disclosure will be described in detail next.

Fig. 10 is a flowchart illustrating a wireless communication method performed by an electronic device 800 as a user equipment in a wireless communication system according to an embodiment of the present disclosure.

As shown in fig. 10, in step S1010, scanning control information is received from a server, the scanning control information including frequency information of a plurality of channel groups, each of the plurality of channel groups including one or more channels.

Next, in step S1020, a plurality of frequency channels included in the scanning control information are sequentially scanned to connect to the access point device.

Preferably, the frequency information of the plurality of channel groups includes a start frequency and an end frequency of each channel group, or the frequency information of the plurality of channel groups includes a start frequency of a first channel group of the plurality of channel groups, an end frequency of a last channel group of the plurality of channel groups, and a band width of each channel group.

Preferably, the wireless communication method further comprises: and sending the scanning speed of the electronic equipment and/or the scanning frequency band width of the electronic equipment to a server for the server to determine the scanning control information.

Preferably, the wireless communication method further comprises: receiving switched channel information of the access point device from the access point device; and switching to the switched frequency channel to connect to the access point equipment.

Preferably, the channel is switched to the switched channel after receiving a switching trigger command from the access point device.

Preferably, the wireless communication method further includes: receiving channel information of other access point devices from the access point device; and switching to the frequency channel of the other access point device to connect to the other access point device.

According to an embodiment of the present disclosure, the subject performing the above method may be the electronic device 800 according to an embodiment of the present disclosure, and thus all the embodiments described above with respect to the electronic device 800 are applicable thereto.

<5. Application example >

The techniques of this disclosure can be applied to a variety of products.

For example, the electronic device 200 may be disposed in a server, such as a tower server, a rack server, and a blade server. The electronic device 200 may be a control module (such as an integrated circuit module including a single die, and a card or blade (blade) inserted into a slot of a blade server) mounted on a server.

The electronic device 200 may also be provided in a network side device, which may be any type of base station device, such as a macro eNB and a small eNB, and may also be implemented as any type of gNB (base station in a 5G system). Small enbs may be enbs that cover cells smaller than macro cells, such as pico enbs, micro enbs, and home (femto) enbs. Alternatively, the base station may be implemented as any other type of base station, such as a NodeB and a Base Transceiver Station (BTS). The base station may include: a main body (also referred to as a base station apparatus) configured to control wireless communication; and one or more Remote Radio Heads (RRHs) disposed at a different place from the main body.

The electronic apparatus 800 may be provided in a user apparatus, which may be implemented as a mobile terminal such as a smart phone, a tablet Personal Computer (PC), a notebook PC, a portable game terminal, a portable/cryptographic dog-type mobile router, and a digital camera, or a vehicle-mounted terminal such as a car navigation apparatus. The user equipment may also be implemented as a terminal (also referred to as a Machine Type Communication (MTC) terminal) that performs machine-to-machine (M2M) communication. Further, the user equipment may be a wireless communication module (such as an integrated circuit module including a single die) mounted on each of the user equipments described above.

< application example with respect to Server >

Fig. 11 is a block diagram illustrating an example of a server 1100 that may implement an electronic device 200 according to the present disclosure. The server 1100 includes a processor 1101, memory 1102, storage 1103, a network interface 1104, and a bus 1106.

The processor 1101 may be, for example, a Central Processing Unit (CPU) or a Digital Signal Processor (DSP), and controls the functions of the server 1100. The memory 1102 includes a Random Access Memory (RAM) and a Read Only Memory (ROM), and stores data and programs executed by the processor 1101. The storage device 1103 may include a storage medium such as a semiconductor memory and a hard disk.

The network interface 1104 is a wired communication interface for connecting the server 1100 to a wired communication network 1105. The wired communication network 1105 may be a core network such as an Evolved Packet Core (EPC) or a Packet Data Network (PDN) such as the internet.

The bus 1106 connects the processor 1101, memory 1102, storage device 1103, and network interface 1104 to each other. The bus 1106 may include two or more buses (such as a high speed bus and a low speed bus) each having a different speed.

In the server 1100 shown in fig. 11, the generation unit 210, the handover triggering unit 230, the channel determination unit 240, the access point determination unit 250, and the power control unit 260 described by using fig. 2 may be implemented by the processor 1101, and the communication unit 220 described by using fig. 2 may be implemented by the network interface 1104. For example, the processor 1101 may perform the functions of generating scanning control information, determining triggering a handover, determining a frequency channel after handover, determining an access point to which a user equipment is connected, and controlling a transmission power of the access point by executing instructions stored in the memory 1102 or the storage 1103.

< application example with respect to base station >

(first application example)

Fig. 12 is a block diagram illustrating a first example of a schematic configuration of an eNB to which the technology of the present disclosure may be applied. The eNB 1200 includes one or more antennas 1210 and a base station apparatus 1220. The base station apparatus 1220 and each antenna 1210 may be connected to each other via an RF cable.

Each of the antennas 1210 includes a single or multiple antenna elements (such as multiple antenna elements included in a multiple-input multiple-output (MIMO) antenna), and is used for the base station apparatus 1220 to transmit and receive wireless signals. As shown in fig. 12, eNB 1200 may include multiple antennas 1210. For example, the multiple antennas 1210 may be compatible with multiple frequency bands used by the eNB 1200. Although fig. 12 shows an example in which the eNB 1200 includes multiple antennas 1210, the eNB 1200 may also include a single antenna 1210.

Base station apparatus 1220 includes a controller 1221, memory 1222, a network interface 1223, and a wireless communication interface 1225.

The controller 1221 may be, for example, a CPU or a DSP, and operates various functions of higher layers of the base station apparatus 1220. For example, the controller 1221 generates a data packet from data in a signal processed by the wireless communication interface 1225 and transfers the generated packet via the network interface 1223. The controller 1221 may bundle data from the plurality of baseband processors to generate a bundle packet, and deliver the generated bundle packet. The controller 1221 may have a logic function of performing control as follows: such as radio resource control, radio bearer control, mobility management, admission control and scheduling. The control may be performed in connection with a nearby eNB or core network node. The memory 1222 includes a RAM and a ROM, and stores programs executed by the controller 1221 and various types of control data (such as a terminal list, transmission power data, and scheduling data).

The network interface 1223 is a communication interface for connecting the base station apparatus 1220 to the core network 1224. The controller 1221 may communicate with a core network node or a further eNB via a network interface 1223. In this case, the eNB 1200 and a core network node or other enbs may be connected to each other through a logical interface, such as an S1 interface and an X2 interface. Network interface 1223 may also be a wired communication interface or a wireless communication interface for a wireless backhaul. If network interface 1223 is a wireless communication interface, network interface 1223 may use a higher frequency band for wireless communication than the frequency band used by wireless communication interface 1225.

The wireless communication interface 1225 supports any cellular communication scheme, such as Long Term Evolution (LTE) and LTE-advanced, and provides wireless connectivity via an antenna 1210 to terminals located in the cell of the eNB 1200. The wireless communication interface 1225 may generally include, for example, a baseband (BB) processor 1226 and RF circuitry 1227. The BB processor 1226 may perform, for example, encoding/decoding, modulation/demodulation, and multiplexing/demultiplexing, and perform various types of signal processing of layers such as L1, medium Access Control (MAC), radio Link Control (RLC), and Packet Data Convergence Protocol (PDCP). The bb processor 1226 may have a part or all of the above-described logic functions in place of the controller 1221. The BB processor 1226 may be a memory storing a communication control program, or a module including a processor configured to execute a program and related circuits. The update program may cause the function of the BB processor 1226 to change. The module may be a card or blade that is inserted into a slot of the base station apparatus 1220. Alternatively, the module may be a chip mounted on a card or blade. Meanwhile, the RF circuit 1227 may include, for example, a mixer, a filter, and an amplifier, and transmits and receives a wireless signal via the antenna 1210.

As shown in fig. 12, wireless communication interface 1225 may include a plurality of BB processors 1226. For example, the plurality of BB processors 1226 may be compatible with a plurality of frequency bands used by the eNB 1200. As shown in fig. 12, wireless communication interface 1225 may include a plurality of RF circuits 1227. For example, multiple RF circuits 1227 may be compatible with multiple antenna elements. Although fig. 12 shows an example in which the wireless communication interface 1225 includes a plurality of BB processors 1226 and a plurality of RF circuits 1227, the wireless communication interface 1225 may include a single BB processor 1226 or a single RF circuit 1227.

(second application example)

Fig. 13 is a block diagram illustrating a second example of a schematic configuration of an eNB to which the technology of the present disclosure may be applied. eNB 1330 includes one or more antennas 1340, base station equipment 1350, and RRH1360. The RRH1360 and each antenna 1340 may be connected to each other via an RF cable. The base station equipment 1350 and the RRH1360 may be connected to each other via a high-speed line such as a fiber optic cable.

Each of the antennas 1340 includes a single or multiple antenna elements (such as multiple antenna elements included in a MIMO antenna) and is used for the RRH1360 to transmit and receive wireless signals. As shown in fig. 13, the eNB 1330 may include multiple antennas 1340. For example, the multiple antennas 1340 may be compatible with multiple frequency bands used by the eNB 1330. Although fig. 13 shows an example in which the eNB 1330 includes multiple antennas 1340, the eNB 1330 may also include a single antenna 1340.

Base station device 1350 includes a controller 1351, memory 1352, a network interface 1353, a wireless communication interface 1355, and a connection interface 1357. The controller 1351, the memory 1352, and the network interface 1353 are the same as the controller 1221, the memory 1222, and the network interface 1223 described with reference to fig. 12. The network interface 1353 is a communication interface for connecting the base station apparatus 1350 to the core network 1354.

The wireless communication interface 1355 supports any cellular communication scheme, such as LTE and LTE-advanced, and provides wireless communication via RRHs 1360 and antennas 1340 to terminals located in a sector corresponding to the RRHs 1360. The wireless communication interface 1355 may generally include, for example, a BB processor 1356. The BB processor 1356 is the same as the BB processor 1226 described with reference to fig. 12, except that the BB processor 1356 is connected to the RF circuit 1364 of the RRH1360 via a connection interface 1357. As shown in fig. 13, the wireless communication interface 1355 may include a plurality of BB processors 1356. For example, the plurality of BB processors 1356 may be compatible with a plurality of frequency bands used by the eNB 1330. Although fig. 13 shows an example in which wireless communication interface 1355 comprises multiple BB processors 1356, wireless communication interface 1355 can also comprise a single BB processor 1356.

The connection interface 1357 is an interface for connecting the base station apparatus 1350 (wireless communication interface 1355) to the RRH1360. The connection interface 1357 may also be a communication module for communication in the above-described high-speed line connecting the base station apparatus 1350 (wireless communication interface 1355) to the RRH1360.

The RRH1360 includes a connection interface 1361 and a wireless communication interface 1363.

The connection interface 1361 is an interface for connecting the RRH1360 (wireless communication interface 1363) to the base station apparatus 1350. The connection interface 1361 may also be a communication module for communication in the above-described high-speed line.

The wireless communication interface 1363 transmits and receives wireless signals via the antenna 1340. Wireless communication interface 1363 may generally include, for example, RF circuitry 1364. The RF circuitry 1364 may include, for example, mixers, filters, and amplifiers, and transmit and receive wireless signals via the antenna 1340. As shown in fig. 13, wireless communication interface 1363 may include a plurality of RF circuits 1364. For example, multiple RF circuits 1364 may support multiple antenna elements. Although fig. 13 illustrates an example in which the wireless communication interface 1363 includes multiple RF circuits 1364, the wireless communication interface 1363 may include a single RF circuit 1364.

In the eNB 1200 and the eNB 1330 illustrated in fig. 12 and 13, the generation unit 210, the handover triggering unit 230, the frequency channel determining unit 240, the access point determining unit 250, and the power control unit 260 described by using fig. 2 may be implemented by the processor 1101, and the communication unit 220 described by using fig. 2 may be implemented by the controller 1221 and/or the controller 1351. At least a portion of the functionality may also be implemented by the controller 1221 and the controller 1351. For example, the controller 1221 and/or the controller 1351 may perform functions of generating scanning control information, determining to trigger a handover, determining a frequency channel after a handover, determining an access point connected to a user equipment, and controlling a transmission power of the access point by executing instructions stored in a corresponding memory.

< application example with respect to terminal device >

(first application example)

Fig. 14 is a block diagram showing an example of a schematic configuration of a smartphone 1400 to which the technology of the present disclosure may be applied. The smart phone 1400 includes a processor 1401, memory 1402, storage device 1403, external connection interface 1404, camera device 1406, sensor 1407, microphone 1408, input device 1409, display device 1410, speaker 1411, wireless communication interface 1412, one or more antenna switches 1415, one or more antennas 1416, bus 1417, battery 1418, and secondary controller 1419.

The processor 1401 may be, for example, a CPU or a system on a chip (SoC), and controls functions of an application layer and other layers of the smartphone 1400. The memory 1402 includes a RAM and a ROM, and stores data and programs executed by the processor 1401. The storage device 1403 may include a storage medium such as a semiconductor memory and a hard disk. The external connection interface 1404 is an interface for connecting an external device such as a memory card and a Universal Serial Bus (USB) device to the smartphone 1400.

The image pickup device 1406 includes an image sensor such as a Charge Coupled Device (CCD) and a Complementary Metal Oxide Semiconductor (CMOS), and generates a captured image. The sensor 1407 may include a set of sensors such as a measurement sensor, a gyro sensor, a geomagnetic sensor, and an acceleration sensor. The microphone 1408 converts sound input to the smartphone 1400 into an audio signal. The input device 1409 includes, for example, a touch sensor, a keypad, a keyboard, a button, or a switch configured to detect a touch on the screen of the display device 1410, and receives an operation or information input from the user. The display device 1410 includes a screen, such as a Liquid Crystal Display (LCD) and an Organic Light Emitting Diode (OLED) display, and displays an output image of the smart phone 1400. The speaker 1411 converts an audio signal output from the smartphone 1400 into sound.

The wireless communication interface 1412 supports any cellular communication scheme (such as LTE and LTE-advanced) and performs wireless communication. Wireless communication interface 1412 may generally include, for example, BB processor 1413 and RF circuitry 1414. The BB processor 1413 can perform, for example, encoding/decoding, modulation/demodulation, and multiplexing/demultiplexing, and perform various types of signal processing for wireless communication. Meanwhile, the RF circuit 1414 may include, for example, a mixer, a filter, and an amplifier, and transmits and receives a wireless signal via the antenna 1416. Wireless communication interface 1412 may be one chip module with BB processor 1413 and RF circuitry 1414 integrated thereon. As shown in fig. 14, wireless communication interface 1412 may include multiple BB processors 1413 and multiple RF circuits 1414. Although fig. 14 shows an example in which the wireless communication interface 1412 includes multiple BB processors 1413 and multiple RF circuits 1414, the wireless communication interface 1412 may also include a single BB processor 1413 or a single RF circuit 1414.

Further, the wireless communication interface 1412 may support another type of wireless communication scheme, such as a short-range wireless communication scheme, a near field communication scheme, and a wireless Local Area Network (LAN) scheme, in addition to the cellular communication scheme. In this case, the wireless communication interface 1412 may include a BB processor 1413 and an RF circuit 1414 for each wireless communication scheme.

Each of the antenna switches 1415 switches a connection destination of the antenna 1416 between a plurality of circuits (for example, circuits for different wireless communication schemes) included in the wireless communication interface 1412.

Each of the antennas 1416 includes a single or multiple antenna elements (such as multiple antenna elements included in a MIMO antenna) and is used for the wireless communication interface 1412 to transmit and receive wireless signals. As shown in fig. 14, the smart phone 1400 may include multiple antennas 1416. Although fig. 14 shows an example in which the smartphone 1400 includes multiple antennas 1416, the smartphone 1400 may also include a single antenna 1416.

Further, the smartphone 1400 may include an antenna 1416 for each wireless communication scheme. In this case, the antenna switch 1415 may be omitted from the configuration of the smart phone 1400.

The bus 1417 connects the processor 1401, the memory 1402, the storage device 1403, the external connection interface 1404, the image pickup device 1406, the sensor 1407, the microphone 1408, the input device 1409, the display device 1410, the speaker 1411, the wireless communication interface 1412, and the auxiliary controller 1419 to each other. The battery 1418 provides power to the various blocks of the smartphone 1400 shown in fig. 14 via a feed line, which is partially shown in the figure as a dashed line. The secondary controller 1419 operates the minimum necessary functions of the smartphone 1400, for example, in a sleep mode.

In the smart phone 1400 shown in fig. 14, the control unit 820 described by using fig. 8 may be implemented by the processor 1401 or the auxiliary controller 1419. At least a portion of the functionality may also be implemented by the processor 1401 or the secondary controller 1419. For example, the processor 1401 or the supplementary controller 1419 may perform a function of scanning channels according to the scan control information and scanning channels according to the received channels by executing instructions stored in the memory 1402 or the storage device 1403.

(second application example)

Fig. 15 is a block diagram showing an example of a schematic configuration of a car navigation device 1520 to which the technique of the present disclosure can be applied. The car navigation device 1520 includes a processor 1521, a memory 1522, a Global Positioning System (GPS) module 1524, sensors 1525, a data interface 1526, a content player 1527, a storage medium interface 1528, an input device 1529, a display device 1530, a speaker 1531, a wireless communication interface 1533, one or more antenna switches 1536, one or more antennas 1537, and a battery 1538.

The processor 1521 may be, for example, a CPU or a SoC, and controls the navigation function and another function of the car navigation device 1520. The memory 1522 includes a RAM and a ROM, and stores data and programs executed by the processor 1521.

The GPS module 1524 measures the position (such as latitude, longitude, and altitude) of the car navigation device 1520 using GPS signals received from GPS satellites. The sensors 1525 may include a set of sensors, such as a gyroscope sensor, a geomagnetic sensor, and an air pressure sensor. The data interface 1526 is connected to, for example, an in-vehicle network 1541 via a terminal not shown, and acquires data generated by a vehicle (such as vehicle speed data).

The content player 1527 reproduces content stored in a storage medium (such as a CD and a DVD) inserted into the storage medium interface 1528. The input device 1529 includes, for example, a touch sensor, a button, or a switch configured to detect a touch on the screen of the display device 1530, and receives an operation or information input from a user. The display device 1530 includes a screen such as an LCD or OLED display, and displays an image of a navigation function or reproduced content. The speaker 1531 outputs the sound of the navigation function or the reproduced content.

The wireless communication interface 1533 supports any cellular communication scheme (such as LTE and LTE-advanced) and performs wireless communication. The wireless communication interface 1533 may generally include, for example, a BB processor 1534 and RF circuitry 1535. The BB processor 1534 may perform, for example, encoding/decoding, modulation/demodulation, and multiplexing/demultiplexing, and perform various types of signal processing for wireless communication. Meanwhile, the RF circuit 1535 may include, for example, a mixer, a filter, and an amplifier, and transmit and receive a wireless signal via the antenna 1537. The wireless communication interface 1533 may also be one chip module on which the BB processor 1534 and the RF circuit 1535 are integrated. As shown in fig. 15, the wireless communication interface 1533 may include a plurality of BB processors 1534 and a plurality of RF circuits 1535. Although fig. 15 shows an example in which the wireless communication interface 1533 includes multiple BB processors 1534 and multiple RF circuits 1535, the wireless communication interface 1533 may also include a single BB processor 1534 or a single RF circuit 1535.

Also, the wireless communication interface 1533 may support another type of wireless communication scheme, such as a short-range wireless communication scheme, a near field communication scheme, and a wireless LAN scheme, in addition to the cellular communication scheme. In this case, the wireless communication interface 1533 may include a BB processor 1534 and RF circuitry 1535 for each wireless communication scheme.

Each of the antenna switches 1536 switches a connection destination of the antenna 1537 between a plurality of circuits (such as circuits for different wireless communication schemes) included in the wireless communication interface 1533.

Each of the antennas 1537 includes a single or multiple antenna elements (such as multiple antenna elements included in a MIMO antenna) and is used for the wireless communication interface 1533 to transmit and receive wireless signals. As shown in fig. 15, the car navigation device 1520 may include a plurality of antennas 1537. Although fig. 15 shows an example in which the car navigation device 1520 includes a plurality of antennas 1537, the car navigation device 1520 may also include a single antenna 1537.

Further, the car navigation device 1520 may include an antenna 1537 for each wireless communication scheme. In this case, the antenna switch 1536 may be omitted from the configuration of the car navigation device 1520.

The battery 1538 supplies power to the respective blocks of the car navigation device 1520 shown in fig. 15 via a feeder line, which is partially shown as a dotted line in the drawing. The battery 1538 accumulates electric power supplied from the vehicle.

In the car navigation apparatus 1520 shown in fig. 15, the control unit 820 described by using fig. 8 may be implemented by the processor 1521. At least a portion of the functionality can also be implemented by the processor 1521. For example, the processor 1521 may perform functions of scanning channels according to the scan control information and scanning channels according to received channels by executing instructions stored in the memory 1522.

The techniques of this disclosure may also be implemented as an in-vehicle system (or vehicle) 1540 that includes one or more blocks of a car navigation device 1520, an in-vehicle network 1541, and a vehicle module 1542. The vehicle module 1542 generates vehicle data (such as vehicle speed, engine speed, and fault information) and outputs the generated data to the vehicle-mounted network 1541.

The preferred embodiments of the present disclosure are described above with reference to the drawings, but the present disclosure is of course not limited to the above examples. Various changes and modifications may be made by those skilled in the art within the scope of the appended claims, and it should be understood that these changes and modifications naturally fall within the technical scope of the present disclosure.

For example, the units shown in the functional block diagrams in the figures as dashed boxes each indicate that the functional unit is optional in the corresponding apparatus, and the respective optional functional units may be combined in an appropriate manner to implement the required functions.

For example, a plurality of functions included in one unit in the above embodiments may be implemented by separate devices. Alternatively, a plurality of functions implemented by a plurality of units in the above embodiments may be implemented by separate devices, respectively. In addition, one of the above functions may be implemented by a plurality of units. Needless to say, such a configuration is included in the technical scope of the present disclosure.

In this specification, the steps described in the flowcharts include not only the processes performed in time series in the described order but also the processes performed in parallel or individually without necessarily being performed in time series. Further, even in the steps processed in time series, needless to say, the order can be changed as appropriate.

Although the embodiments of the present disclosure have been described in detail with reference to the accompanying drawings, it should be understood that the above-described embodiments are merely illustrative of the present disclosure and do not constitute a limitation of the present disclosure. It will be apparent to those skilled in the art that various modifications and variations can be made in the above-described embodiments without departing from the spirit and scope of the disclosure. Accordingly, the scope of the disclosure is to be defined only by the claims appended hereto, and by their equivalents.

Claims

An electronic device comprising processing circuitry configured to:

generating scan control information, the scan control information including frequency information of a plurality of channel groups, each of the plurality of channel groups including one or more channels; and

transmitting the scanning control information to a user equipment so that the user equipment sequentially scans a plurality of frequency channels included in the scanning control information to connect to an access point device.
The electronic device of claim 1, wherein the frequency information of the plurality of channel groups comprises a start frequency and an end frequency of each channel group, or

Wherein the frequency information of the plurality of channel groups includes a start frequency of a first channel group in the plurality of channel groups, an end frequency of a last channel group, and a frequency band width of each channel group.
The electronic device of claim 1, wherein the processing circuit is further configured to:

determining the scan control information according to at least one of the following parameters: the scanning speed of the user equipment, the scanning frequency band width of the user equipment, the position information of the user equipment and the available channel information.
The electronic device of claim 1, wherein the processing circuit is further configured to:

determining channel information of the access point device after switching; and

and sending the switched channel information to access point equipment for the access point equipment to send the switched channel information to the user equipment.
The electronic device of claim 1, wherein the processing circuit is further configured to:

for each user equipment, determining an access point device connected with the user equipment; and

and sending the channel information of the access point equipment to the user equipment so that the user equipment can be connected to the access point equipment.
The electronic device of claim 5, wherein the processing circuit is further configured to:

determining the access point equipment connected with the user equipment according to the number of the user equipment connected with each access point equipment.
The electronic device of claim 1, wherein the processing circuit is further configured to:

the order of the plurality of channel groups included in the scanning control information for different user equipments is made different.
The electronic device of claim 1, wherein the processing circuit is further configured to:

aiming at each access point device, determining a frequency channel of the access point device according to interference information of each frequency channel; and

and sending the channel information of the access point equipment to the access point equipment.
The electronic device of claim 8, wherein the processing circuit is further configured to:

interference information for each frequency channel is received from one or more interference sensing devices.
The electronic device of claim 1, wherein the processing circuit is further configured to:

determining a switched access point device of the user equipment; and

and reducing the sending power of the access point equipment currently connected with the user equipment, and increasing the sending power of the switched access point equipment.
An electronic device comprising processing circuitry configured to:

receiving scanning control information from a server, the scanning control information including frequency information of a plurality of channel groups, each of the plurality of channel groups including one or more channels; and

sequentially scanning a plurality of frequency channels included in the scanning control information to connect to an access point device.
The electronic device of claim 11, wherein the frequency information of the plurality of channel groups comprises a start frequency and a stop frequency of each channel group, or

Wherein the frequency information of the plurality of channel groups includes a start frequency of a first channel group in the plurality of channel groups, an end frequency of a last channel group, and a frequency band width of each channel group.
The electronic device of claim 11, wherein the processing circuit is further configured to:

and sending the scanning speed of the electronic equipment and/or the scanning frequency band width of the electronic equipment to the server so as to be used for the server to determine the scanning control information.
The electronic device of claim 11, wherein the processing circuit is further configured to:

receiving switched channel information of the access point device from the access point device;

and switching to the switched frequency channel to connect to the access point equipment.
The electronic device of claim 14, wherein the processing circuit is further configured to:

switching to the switched frequency channel after receiving a switch trigger command from the access point device.
The electronic device of claim 11, wherein the processing circuit is further configured to:

receiving channel information of other access point devices from the access point device; and

switching to a frequency channel of the other access point device to connect to the other access point device.
A wireless communication method performed by an electronic device, comprising:

generating scan control information, the scan control information including frequency information of a plurality of channel groups, each of the plurality of channel groups including one or more channels; and

transmitting the scanning control information to a user equipment so that the user equipment sequentially scans a plurality of frequency channels included in the scanning control information to connect to an access point device.
The wireless communication method as claimed in claim 17, wherein the frequency information of the plurality of channel groups includes a start frequency and a stop frequency of each channel group, or

The frequency information of the plurality of channel groups includes a start frequency of a first channel group, an end frequency of a last channel group, and a frequency band width of each channel group.
The wireless communication method of claim 17, wherein the wireless communication method further comprises:

determining the scan control information according to at least one of the following parameters: the scanning speed of the user equipment, the scanning frequency band width of the user equipment, the position information of the user equipment and the available channel information.
The wireless communication method of claim 17, wherein the wireless communication method further comprises:

determining channel information of the access point device after switching; and

and sending the switched channel information to an access point device, so that the access point device sends the switched channel information to the user equipment.
The wireless communication method of claim 17, wherein the wireless communication method further comprises:

for each user equipment, determining an access point device connected with the user equipment; and

and sending the channel information of the access point equipment to the user equipment so that the user equipment can be connected to the access point equipment.
The wireless communication method of claim 21, wherein determining an access point device to which the user device is connected comprises:

determining access point devices connected with the user devices according to the number of the user devices connected with the access point devices.
The wireless communication method of claim 17, wherein the wireless communication method further comprises:

the order of the plurality of channel groups included in the scanning control information for different user equipments is made different.
The wireless communication method of claim 17, wherein the wireless communication method further comprises:

aiming at each access point device, determining a frequency channel of the access point device according to interference information of each frequency channel; and

and sending the channel information of the access point equipment to the access point equipment.
The wireless communication method of claim 24, wherein the wireless communication method further comprises:

interference information for each frequency channel is received from one or more interference sensing devices.
The wireless communication method of claim 17, wherein the wireless communication method further comprises:

determining a switched access point device of the user equipment; and

and reducing the transmission power of the access point equipment currently connected with the user equipment, and increasing the transmission power of the switched access point equipment.
A wireless communication method performed by an electronic device, comprising:

receiving scanning control information from a server, the scanning control information including frequency information of a plurality of channel groups, each of the plurality of channel groups including one or more channels; and

sequentially scanning a plurality of frequency channels included in the scanning control information to connect to an access point device.
The wireless communication method as claimed in claim 27, wherein the frequency information of the plurality of channel groups includes a start frequency and a stop frequency of each channel group, or

The frequency information of the plurality of channel groups includes a start frequency of a first channel group, an end frequency of a last channel group, and a frequency band width of each channel group.
The wireless communication method of claim 27, wherein the wireless communication method further comprises:

and sending the scanning speed of the electronic equipment and/or the scanning frequency band width of the electronic equipment to the server for the server to determine the scanning control information.
The wireless communication method of claim 27, wherein the wireless communication method further comprises:

receiving switched channel information of the access point device from the access point device;

and switching to the switched frequency channel to connect to the access point equipment.
The wireless communication method of claim 30, wherein switching to the switched frequency channel occurs after receiving a switch trigger command from the access point device.
The wireless communication method of claim 27, wherein the wireless communication method further comprises:

receiving channel information of other access point devices from the access point device; and

switching to the frequency channel of the other access point device to connect to the other access point device.
A computer readable storage medium comprising executable computer instructions that when executed by a computer cause the computer to perform the wireless communication method of any of claims 17-32.