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WO2022017265A1 - Dispositif électronique, procédé de communication sans fil et support de stockage lisible par ordinateur - Google Patents

Dispositif électronique, procédé de communication sans fil et support de stockage lisible par ordinateur Download PDF

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Publication number
WO2022017265A1
WO2022017265A1 PCT/CN2021/106679 CN2021106679W WO2022017265A1 WO 2022017265 A1 WO2022017265 A1 WO 2022017265A1 CN 2021106679 W CN2021106679 W CN 2021106679W WO 2022017265 A1 WO2022017265 A1 WO 2022017265A1
Authority
WO
WIPO (PCT)
Prior art keywords
channel
access point
user equipment
point device
wireless communication
Prior art date
Application number
PCT/CN2021/106679
Other languages
English (en)
Chinese (zh)
Inventor
温孟阁
孙晨
Original Assignee
索尼集团公司
温孟阁
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 索尼集团公司, 温孟阁 filed Critical 索尼集团公司
Priority to CN202180047643.XA priority Critical patent/CN115968568A/zh
Publication of WO2022017265A1 publication Critical patent/WO2022017265A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/14—Access restriction or access information delivery, e.g. discovery data delivery using user query or user detection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/20—Selecting an access point

Definitions

  • Embodiments of the present disclosure generally relate to the field of wireless communications, and in particular, to electronic devices, wireless communication methods, and computer-readable storage media. More specifically, 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 A wireless communication method performed by a user equipment in a wireless communication system and a computer-readable storage medium.
  • the server can control the working channel and transmit power of the AP (Access Point) device.
  • the AP device works on the set working channel after obtaining the parameter configuration from the server.
  • the user equipment can access the AP device by polling the channel list. After the user equipment scans the same channel as the AP device, it can access the AP device to work on the same channel as the AP device. When the working channel of the AP device changes, the user equipment needs to re-connect to the AP device by polling the channel list again.
  • 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 the scanning result to the server. If the user equipment does not scan the same channel as the AP device, the server sends a scanning instruction to the user equipment again, and the user equipment scans the corresponding channel according to the scanning instruction and returns the scanning result to the server. so back and forth. That is to say, the server needs to send scanning instructions to the user equipment multiple times, thereby prolonging the time for polling the channel list and increasing the overhead.
  • the user equipment scans one channel according to each instruction, and the scanning frequency band width of the user equipment may be larger than the frequency band width of one channel.
  • the user equipment needs to scan the 24MHz frequency band width in order to determine whether the 8MHz width channel is the working channel of the AP device, thus prolonging the access time.
  • the time of the AP device For example, assuming that the frequency band width of a channel is 8MHz, and the scanning frequency band width of the user equipment is 24MHz, the user equipment needs to scan the 24MHz frequency band width in order to determine whether the 8MHz width channel is the working channel of the AP device, thus prolonging the access time. The time of the AP device.
  • the purpose of the present disclosure is to provide an electronic device, a wireless communication method and a computer-readable storage medium to optimize the connection control process between the AP and the user equipment, thereby shortening the time for the user equipment to access the AP and improving the communication between the AP and the user equipment quality.
  • an electronic device including a processing circuit configured to generate scan control information, the scan control information including frequency information of a plurality of frequency channel groups, each of the plurality of frequency channel groups The number of channel groups includes one or more channels; and the scan control information is sent to the user equipment, so that the user equipment sequentially scans the plurality of channels included in the scan control information to connect to the access point device.
  • an electronic device including a processing circuit configured to receive scan control information from a server, the scan control information including frequency information of a plurality of channel groups, the plurality of channel groups Each channel group in includes one or more channels; and sequentially scans the plurality of channels included in the scan control information to connect to the 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 frequency channel groups, wherein the frequency information of the plurality of frequency channel groups is Each channel group includes one or more channels; and the scan control information is sent to the user equipment, so that the user equipment sequentially scans the plurality of channels included in the scan control information to connect to the access point device.
  • a wireless communication method performed by an electronic device, comprising: receiving scan control information from a server, the scan control information including frequency information of a plurality of frequency channel groups, the plurality of frequency channel groups Each channel group in includes one or more channels; and sequentially scans the plurality of channels included in the scan control information to connect to the access point device.
  • 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.
  • executable computer instructions that, when executed by a computer, cause the computer to perform a wireless communication method according to the present disclosure.
  • the scan control information includes frequency information of multiple channel groups, so that the user equipment can scan multiple channels sequentially according to the scan control information.
  • the user equipment only needs to receive the scan control information once to perform the entire process of polling the channel list, thereby shortening the time for the user equipment to access the AP and saving signaling overhead.
  • 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 chart illustrating a process of establishing a connection between a user equipment and an AP according to an embodiment of the present disclosure
  • FIG. 4 is a signaling flow diagram illustrating a process of establishing a connection between a user equipment and an AP after switching channels according to an embodiment of the present disclosure
  • FIG. 5 is a signaling flow diagram illustrating a process by a server to determine an AP connected to a user equipment according to an embodiment of the present disclosure
  • 6(a) and 6(b) are schematic diagrams illustrating scenarios of changing an AP connected to a user equipment by changing the transmit power of the AP according to an embodiment of the present disclosure
  • FIG. 7 is a signaling flow diagram illustrating changing an AP connected to a user equipment by changing the transmit 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 equipment 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, evolved Node B);
  • FIG. 13 is a block diagram showing a second example of a schematic configuration of an eNB
  • FIG. 14 is a block diagram showing an example of a schematic configuration of a smartphone.
  • FIG. 15 is a block diagram showing an example of a schematic configuration of a car navigation apparatus.
  • 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 in order 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 some example embodiments, well-known processes, well-known structures and well-known technologies are not described in detail.
  • FIG. 1 is a schematic diagram illustrating an application scenario of the present disclosure.
  • the wireless communication system includes a server, an AP, and two user equipments.
  • FIG. 1 only shows an example in which the wireless communication system includes one AP and two user equipments.
  • a wireless communication system may include one or more APs, and one or more user equipments.
  • the server can control the working channel and transmit power of the AP device, and the AP device works on the set working channel after obtaining the parameter configuration from the server.
  • Each user equipment can access the AP device by polling the channel list, so as to use 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, so as to optimize the connection control process between the AP and the user equipment,
  • the time for the user equipment to access the AP is shortened, and the communication quality between the AP and the user equipment is improved.
  • the wireless communication system according to the present disclosure may be a 5G NR (New Radio) communication system.
  • 5G NR New Radio
  • the AP may be a BTS (Base Transceiver Station, base transceiver station), a router, and other devices.
  • BTS Base Transceiver Station, base transceiver station
  • router and other devices.
  • the server according to the present disclosure may be integrated in a network-side device that provides services for user equipment.
  • the network side device according to the present disclosure may be a base station device, for example, an eNB, or a gNB (a base station in a 5th generation communication system).
  • the server according to the present disclosure may also be integrated in the AP.
  • the server may also be an electronic device independent of the network-side device and the AP. Further, the server may be located in the cloud.
  • the server according to the present disclosure may be a database, preferably a TV (television) spectrum database.
  • the user equipment may be a mobile terminal (such as a smart phone, a tablet personal computer (PC), a notebook PC, a portable game terminal, a portable/dongle type mobile router, and a digital camera) or an in-vehicle terminal (such as a car navigation device) ).
  • the user equipment may also be implemented as a terminal performing machine-to-machine (M2M) communication (also referred to as a machine type communication (MTC) terminal).
  • M2M machine-to-machine
  • MTC machine type communication
  • the user equipment may be a wireless communication module (such as an integrated circuit module comprising a single die) mounted on each of the aforementioned terminals.
  • the user equipment may be a station equipment (station), or a CPE (Customer Premise Equipment, client equipment).
  • the AP may be connected to the TV spectrum database, and the station equipment (station) may be connected to the AP.
  • Each site device can be connected to multiple cameras, or each site device in the multiple site devices can be connected to a camera respectively, so that the traffic monitoring software of the camera can be used to check the data traffic situation in the wireless network.
  • the AP can connect to the TV spectrum database.
  • a station can connect to an AP through one or more relay station devices.
  • wireless security video networks such as communities, campuses, and scenic spots, fixed-directional antennas can be used at high places, and miniaturized antennas can be used at low places.
  • the antenna coverage method can be selected according to the shape of the venue, for example, circular venues use range coverage, and linear venues use directional coverage.
  • the scenarios in which the wireless communication system of the present disclosure is applied are described above in an exemplary manner, but the present disclosure is not limited to the above scenarios.
  • FIG. 2 is a block diagram showing an example of the configuration of the electronic device 200 according to an embodiment of the present disclosure.
  • the electronic device 200 here may serve as a server in a wireless communication system.
  • the electronic device 200 may include a generating unit 210 and a communication unit 220 .
  • each unit of the electronic device 200 may be included in the processing circuit.
  • the electronic device 200 may include either one processing circuit or multiple processing circuits.
  • the processing circuit 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 with different names may be implemented by the same physical entity.
  • the generating unit 210 may generate scan control information.
  • the scan control information includes frequency information of a plurality of channel groups, each of which includes one or more channels.
  • the electronic device 200 may send scan control information to the user equipment through the communication unit 220, so that the user equipment sequentially scans multiple channels included in the scan control information to connect to the access point device.
  • the generated scan control information includes frequency information of multiple channel groups, so that the user equipment can scan multiple channels sequentially according to the scan control information.
  • the user equipment only needs to receive the scan control information once to perform the entire process of polling the channel list, thereby shortening the time for the user equipment to access the AP and saving signaling overhead.
  • the frequencies of the plurality of channel groups included in the scan control information generated by the generating unit 210 do not overlap. That is to say, any one of the multiple channel groups does not have overlapping channels with other channel groups.
  • a first channel group of the plurality of channel groups includes channels 1, 2 and 3
  • a second channel group of the channel groups includes channels 4, 5 and 6, and the difference between the first channel group and the second channel group There are no overlapping channels.
  • the user equipment scans the first channel group and the second channel group in sequence, that is, scans channels 1, 2, 3, 4, 5 and 6 in sequence.
  • the user equipment scans one channel according to each instruction, and the scanning frequency band width of the user equipment may be larger than the frequency band width of one channel.
  • the channels are sequentially numbered 1, 2, 3, . 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 scanned by the user equipment each time.
  • each channel group includes multiple channels, the user equipment can scan multiple channels at the same time, thereby improving the scanning efficiency.
  • the frequency information of the plurality of channel groups included in the scan control information generated by the generating unit 210 may include the start frequency and the end frequency of each channel group.
  • the frequency information of the plurality of channel groups may include the starting frequency of channel 1 and the ending frequency of channel 3; assuming that the second channel group includes channels 4, 5 and 6, the frequency information of the multiple channel groups may further include the start frequency of channel 4 and the 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 frequency of the last channel in each channel group. Termination frequency.
  • the scanning control information is described in terms of adjacent frequency bands of the frequency channel group, the frequency bands of the frequency channel group may not be adjacent to each other.
  • the first channel group includes channels 1, 2, and 3
  • the second channel group includes channels 6, 7, and 8.
  • the frequency information of the plurality of channel groups included in the scan control information generated by the generating unit 210 may also include the start frequency of the first channel group and the end frequency of the last channel group among the plurality of channel groups frequency and band width for each channel group. This situation is applicable when the frequency bands of each channel group have the same width and the frequency bands of each channel group are adjacent.
  • the position occupied by each channel in the frequency domain is called a frequency band, for example, the frequency band of channel A is 800-808 MHz.
  • a channel group includes one or more channels.
  • the width occupied by the channel in the frequency domain is called the frequency band width of the channel.
  • the frequency band width of the above channel A is 8MHz.
  • the width occupied by the channel group in the frequency domain is called the frequency band width of the channel group.
  • 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.
  • each channel group includes three channels.
  • the frequency information of the multiple channel groups may include the start frequency of channel 1, the end frequency of channel 9, and the frequency of each channel.
  • the band width of the group is 24MHz.
  • the scan control information includes frequency information of a plurality of channel groups.
  • the scan control information also implicitly includes sequence information of multiple channel groups.
  • 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 according to the order information of the plurality of channel groups. Termination frequency.
  • the order of the multiple channel groups It is the order from the first channel group to the last channel group in the frequency domain (that is, the frequency is from small to large, or from large to small). In this way, the user equipment can sequentially scan the channels in the multiple channel groups according to the sequence information of the multiple channel groups.
  • the scan control information generated by the generating unit 210 may be for user equipment. That is, for different user equipments, the scan control information may be different.
  • the electronic device 200 may send the scan control information to the user equipment through the AP connected to the user equipment (ie, the AP to which the user equipment is connected).
  • the electronic device 200 may receive the scanning speed of the user equipment and/or the 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 user equipment or locating the user equipment according to any positioning method in the art. Thus, the electronic device 200 can determine the scan control information according to at least one of the following parameters: the scan speed of the user equipment, the scan frequency band width of the user equipment, the location information of the user equipment, and the available channel information.
  • the electronic device 200 may determine the number of channels included in each channel group for the user equipment according to the scanning speed of the user equipment and/or the 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 each channel group may include. For another example, the larger the scanning frequency band width of the user equipment, the larger the number of channels included in each channel group. In addition, the electronic device 200 may also determine the number of channels included in each channel group in combination with the scanning speed and the scanning frequency band width of the user equipment.
  • the electronic device 200 may determine the channels included in the multiple channel groups, that is, the channels that the user equipment needs to scan, according to the location information and/or available channel information of the user equipment. 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.
  • the channels to be scanned by the user equipment can be divided into multiple channel groups, and scan control information is generated accordingly.
  • such scan control information may be preset in the user equipment, so that when the user equipment accesses the AP for the first time, Do a channel scan.
  • the electronic device 200 may generate scan control information periodically or eventually, so as to send the scan control information to the user equipment through the AP to which the user equipment has been connected, so that the user equipment can use the AP next time.
  • Such scan control information can be used when performing channel scan.
  • FIG. 3 is a signaling flow chart illustrating a process of establishing a connection between a user equipment and an AP according to an embodiment of the present disclosure.
  • the server may be implemented by the electronic device 200 .
  • the server and the AP have established a connection.
  • the server generates scan control information for the user equipment and sends it to the AP accessed by the user equipment.
  • the AP forwards the scan control information to the user equipment.
  • the user equipment may scan each channel group in sequence according to the scan control information.
  • step S304 the user equipment scans the channels included in the first channel group.
  • step S305 the user equipment scans the channels included in the second channel group.
  • step S306 the user equipment scans the channels included in the Nth channel group. It is assumed here that in step S307, a response from the AP is received, whereby the user equipment can connect to the AP.
  • the generated scan control information includes frequency information of multiple channel groups, so that the user equipment can scan multiple channels sequentially according to the scan control information.
  • the user equipment only needs to receive the scan control information once to perform the entire process of polling the channel list, thereby shortening the time for the user equipment to access the AP and saving signaling overhead.
  • the electronic device 200 may further include a channel determination unit 240 configured to determine the channel of each access point device managed by the electronic device 200 . Further, the electronic device 200 can send the channel of the access point device to the access point device through the communication unit 220, so that the access point device can work according to the received channel.
  • a channel determination unit 240 configured to determine the channel of each access point device managed by the electronic device 200 . Further, the electronic device 200 can send the channel of the access point device to the access point device through the communication unit 220, so that the access point device can work according to the received channel.
  • the channel determination unit 240 may determine the channel of the access point device according to the interference information of each channel. For example, the channel determination unit 240 may select a channel with less interference among the available channels as the channel of the access point device. During the initial access process of the access point device, the channel determination unit 240 may determine the initial access channel of the access point device according to the interference information of each channel; in the case that the access point device has accessed the electronic device 200, the channel The determining unit 240 may determine the switched channel of the access point device according to the interference information of each channel.
  • the electronic device 200 may receive interference information of each channel from one or more interference sensing devices.
  • one or more interference sensing devices may be integrated into one or more access point devices, or may be set as sensing devices independent of the access point devices.
  • One or more interference sensing devices may periodically detect the interference of each channel, and report the interference of each channel to the electronic device 200 .
  • the electronic device 200 may configure a frequency channel to be sensed for an interference sensing device, and one interference sensing device may sense one or more frequency channels.
  • the electronic device 200 may process the multiple interference sensing results, such as averaging, to determine the interference of the channel.
  • the electronic device 200 may further determine periodic frequency hopping information of the access point device according to the interference information of each frequency channel, where the periodic frequency hopping information may include the frequency hopping information of the access point device in the next multiple cycles The information of the working channel within each cycle. For example, the electronic device may select a channel with less interference in each cycle as the working channel of the access point device in the cycle.
  • the electronic device 200 may send the periodic frequency hopping information to the access point device.
  • the access point device can sequentially change the working channel in the following multiple cycles according to the periodic frequency hopping information.
  • the electronic device 200 may also send the periodic frequency hopping information to the user equipment connected to the access point device through the access point device. In this way, the user equipment can sequentially change the working channel in the next multiple cycles according to the periodic frequency hopping information.
  • the electronic device 200 may also use a fixed time-frequency resource to send the periodic frequency hopping information, and the user equipment acquires the periodic frequency hopping information by listening to the time-frequency resource.
  • 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.
  • the electronic device 200 can select the working channel of the access point device according to the interference of each channel, thereby ensuring a good network environment.
  • the electronic device 200 can also set periodic frequency hopping information, so that the access point device and the user equipment can periodically change the operating frequency.
  • the electronic device 200 may further include a switching trigger unit 230 for determining that the channel of the access point device needs to be switched. For example, when the electronic device 200 finds that the working channel of the access point device is degraded due to factors such as interference, the switching trigger unit 230 may determine that the channel of the access point device needs to be switched.
  • the channel determination unit 240 can determine the switched channel of the access point device, and the electronic device 200 can use the communication unit 220
  • the switched channel information is sent to the access point device, so that the access point device sends the switched channel information to the user equipment.
  • the access point device may also send a handover trigger command to the user equipment, so that the user equipment switches to the switched channel after receiving the handover trigger command to establish a connection with the access point device, while the access point The device may establish a connection with the electronic device 200 using the switched channel. Therefore, the access point device and the user equipment can switch to the switched channel to work at the same time.
  • FIG. 4 is a signaling flow chart illustrating a process of establishing a connection between a user equipment and an AP after switching channels according to an embodiment of the present disclosure.
  • the server may be implemented by the electronic device 200 .
  • the server establishes a connection with the AP.
  • the server determines to switch the channel of the AP.
  • the server determines the switched channel of the AP.
  • the server sends the switched channel to the AP.
  • step S405 the AP sends the switched channel to the user equipment.
  • the user equipment returns confirmation information to the AP confirming receipt of the switched channel.
  • step S407 the AP sends a handover trigger command to the user equipment.
  • 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.
  • the AP will not switch to the new channel immediately, but send the switched channel to the user equipment. In this way, the user equipment can directly access the switched channel without performing the process of polling the channel list, so that the user equipment and the AP can switch to the switched channel at the same time, which shortens the switching time and simplifies the switching process. .
  • the sequence of scanning channels by each user equipment is the same. For example, each user equipment scans in the order of channels 1, 2, 3, . . . In this way, the number of users connected to the access point device at the front of the working channel is more, and the number of users connected to the access point device at the back of the working channel is less. Therefore, the load of each access point device is not balanced, so that the channel quality and resource allocation are uneven.
  • the electronic device 200 may further include an access point determination unit 250 for determining, for each user equipment, an access point device connected to the user equipment.
  • the access point determination unit 250 may determine the access point device connected to the user equipment according to the number of user equipments connected to each access point device.
  • the electronic device 200 may receive the load number of the access point device from each 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. Optionally, whenever the load number of the access point device changes, the access point device may report its load number to the electronic device 200 .
  • the access point determining unit 250 may switch one or more user equipments connected to the access point device with a large number of loads to the access point device with a small number of loads, that is, determine the connection with the one or more access point devices.
  • the access point device connected to the user equipment is an access point device with a small number of loads. For example, if access point device 1 is connected to 6 user equipments, and access point device 2 is connected to 2 user equipments, then the access point determination unit 250 may reconfigure the access point devices of the two user equipments connected to access point device 1 It is determined to be the access point device 2, so that the user equipments connected to the access point device 1 and the access point device 2 are both 4.
  • the electronic device 200 may send the channel information of the access point device to the user equipment through the communication unit 220 to use After the user equipment is connected to the switched access point device.
  • FIG. 5 is a signaling flow diagram illustrating a process by a server to determine an AP to which a user equipment is connected, according to an embodiment of the present disclosure.
  • the server may be implemented by the electronic device 200 .
  • the server establishes a connection with the current AP.
  • the current AP establishes a connection with the user equipment.
  • the server rearranges the load of each AP, so as to determine the AP after switching for some user equipments.
  • the server sends the channel information of the switched AP of the user equipment to the AP that the user equipment is currently connected to.
  • step S505 the AP to which the user equipment is currently connected sends the channel information of the switched AP to the user equipment.
  • the user equipment establishes a connection with the switched AP using the channel of the switched AP.
  • the electronic device 200 may reallocate user equipments connected to each access point device to equalize the number of loads connected to each access point device, thereby improving channel quality.
  • This operation of the electronic device 200 may be periodic, that is, the access point determining unit 250 may periodically determine the user equipment connected to each access point device according to the load number of each access point device, so as to determine that handover is required.
  • the switched access point device of the user equipment may be periodic, that is, the access point determining unit 250 may periodically determine the user equipment connected to each access point device according to the load number of each access point device, so as to determine that handover is required.
  • this operation of the electronic device 200 may also be triggered by an event, that is, when the load number of a certain access point device is greater than a predetermined threshold, the access point determining unit 250 may The user equipment connected to each access point device is determined by the number of loads, so as to determine the switched access point device of the user equipment that needs to be switched.
  • the order of the multiple channel groups included in the scan control information of some user equipments may be the same, and the scan control information of some user equipments may be in the same order.
  • Multiple channel groups are included in a different order. For example, assuming that channel group A includes channels 1, 2, and 3, channel group B includes channels 4, 5, and 6, and channel group C includes channels 7, 8, and 9, the electronic device 200 may divide all user equipments into multiple groups, Each group includes one or more user equipments.
  • the order 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 order 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 order 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 order 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.
  • the sequence of the multiple channel groups included in the scan control information for different user equipments may be different.
  • channel group A includes channels 1, 2, and 3
  • channel group B includes channels 4, 5, and 6, and channel group C includes channels 7, 8, and 9
  • the order of the plurality of channel groups of the first user equipment is channels Group A, Channel Group B and Channel Group C
  • the order of the plurality of channel groups of the second user equipment is Channel Group B, Channel Group C and Channel Group A
  • the order of the plurality of channel groups of the third user equipment is Channel Group Group C, channel group A, and channel group B
  • the order of the plurality of channel groups of the fourth user equipment is channel group A, channel group C, and channel group B, and so on.
  • the electronic device 200 may configure the order of scanning channels for user equipments, so that the order of scanning channels of each user equipment is different, or the order of scanning channels of some user equipments is different. In this way, the user equipment scans the channels according to different scanning sequences, so that the number of user equipments accessing each access point device is relatively uniform.
  • the electronic device 200 rearranges the user equipments connected to each access point device according to the load number of each access point device.
  • the electronic device 200 sets the channel scanning order of different or part of the user equipment to be different.
  • the electronic device 200 may implement the above two methods alone, or may combine the above two methods. For example, the electronic device 200 may set the channel scanning order of different or part of the user equipment to be different as described above, and then rearrange the user equipments connected to each access point device according to the load number of each access point device.
  • FIGS. 6( a ) and 6 ( b ) are schematic diagrams illustrating scenarios of changing an AP connected to a user equipment by changing the transmit power of the AP according to an embodiment of the present disclosure.
  • the user equipment is at point P, and the user equipment is configured with the primary access point AP1 and the secondary access point AP2.
  • AP1 and AP2 use adjacent frequency channels, and are located at point P.
  • the user equipment can monitor the quality of the channel used by AP1 and the quality of the channel used by AP2. Quality includes but is not limited to SNR (signal noise ratio, signal-to-noise ratio).
  • AP1 operates at normal transmit power
  • the larger oval area shows the coverage area of AP1
  • AP2 runs at lower transmit power
  • the smaller oval area shows the coverage area of AP2 coverage area. That is to say, the user equipment at point P is located within the coverage area of AP1 but outside the coverage area of AP2, and therefore works on the working channel of AP1.
  • the electronic device 200 may further include a power control unit 260 .
  • the power control unit 260 may reduce the transmission of the access point device to which the user equipment is currently connected power, and increase the transmit power of the switched access point device.
  • the electronic device 200 determines that there is interference in the operating frequency of the primary access point device, and can determine that the user equipment should be handed over to the secondary access point device.
  • the transmit power of AP1 decreases, the coverage becomes smaller, and the transmit power of AP2 increases, so the coverage becomes larger.
  • the user equipment at point P is located within the coverage area of AP2 and is located outside the coverage area of AP1. In this case, the user equipment detects that the quality of the channel used by AP1 is much lower than the quality of the channel used by AP2, so it can switch to the channel used by AP2.
  • step S701 the server establishes a connection with AP1.
  • step S702 the user equipment establishes a connection with AP1.
  • step S703 the server determines that the user equipment should switch to AP2.
  • step S704 the server reduces the transmit power of AP1.
  • step S705 the server increases the transmit power of AP2. In this way, in step S706, the user equipment establishes a connection with AP2.
  • the primary access point device and the secondary access point device can be configured for the user equipment, and the access point accessed by the user equipment can be changed by changing the transmit power of the access point device. device, so that the handover of the access point device can be realized under the condition that the location of the user equipment remains unchanged.
  • the generated scan control information includes frequency information of multiple channel groups, and the user equipment only needs to receive the scan control information once to perform the entire process of polling the channel list.
  • each channel group may include one or more channels so that the user equipment may scan one or more channels simultaneously.
  • the electronic device 200 can select the working channel of the access point device according to the interference of each channel, thereby ensuring a good network environment.
  • the electronic device 200 can also set periodic frequency hopping information, so that the access point device and the user equipment can periodically change the operating frequency.
  • the AP can send the switched channel to the user equipment, and the user equipment can directly access the switched channel without performing the process of polling the channel list, which shortens the switching time.
  • the electronic device 200 may rearrange the user equipment connected to each access point device according to the load number of each access point device, or set the channel scanning order of different or part of the user equipment to be different, so that each access point device has a different scanning order. The load number of point devices is evened out.
  • the electronic device 200 can change the access point device accessed by the user equipment by changing the transmit power of the access point device, so that the switching of the access point device can be realized without changing the location of the user equipment.
  • the connection control process between the AP and the user equipment can be optimized, and the communication quality between the AP and the user equipment can be improved.
  • 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 a CPE or a station.
  • the electronic device 800 may include a communication unit 810 and a control unit 820 .
  • each unit of the electronic device 800 may be included in the processing circuit.
  • the electronic device 800 may include either one processing circuit or multiple processing circuits.
  • the processing circuit 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 with different names may be implemented by the same physical entity.
  • the electronic device 800 may receive scan control information from a server through the communication unit 810, where the scan control information includes frequency information of a plurality of channel groups, each of which includes one or more channels .
  • control unit 820 may control the electronic device 800 to sequentially scan a plurality of channels included in the scan control information to connect to the access point device.
  • the electronic device 800 of the embodiment of the present disclosure since the scan control information includes frequency information of multiple channel groups, the electronic device 800 only needs to receive the scan control information once to perform the entire process of polling the channel list , thus saving the time of channel scanning.
  • the frequency information of the plurality of channel groups may include 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 of the first channel group among the plurality of channel groups, the end frequency of the last channel group, and the frequency band width of each channel group.
  • the electronic device 800 can determine the position of each channel group in the frequency domain according to the frequency information of the multiple channel groups.
  • the scan control information may further include sequence information of the plurality of channel groups.
  • the frequency information of the plurality of channel groups may include the start frequency of each channel group in the order of the plurality of channel groups and termination frequency.
  • the order of the multiple channel groups It is the order from the first channel group to the last channel group in the frequency domain (that is, the frequency is from small to large, or from large to small). In this way, the electronic device 800 can determine the order of the plurality of channel groups and the position of each channel group in the frequency domain.
  • the electronic device 800 may sequentially scan the channels included in each channel group according to the order of the plurality of channel groups.
  • the first channel group includes channels 1, 2, and 3
  • the second channel group includes channels 4, 5, and 6,
  • the third channel group includes channels 7, 8, and 9.
  • the control unit 820 can control the electronic device 800 to first scan the channels 1, 2, and 3 included in the first channel group, then scan the channels 4, 5, and 6 included in the second channel group, and then scan the third channel group. Channels 7, 8, 9 in .
  • the electronic device 800 may send 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.
  • 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 channel to connect to the access point device.
  • the electronic device 800 may receive a handover trigger command from the 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.
  • the electronic device 800 can directly acquire the switched channel of the access point device from the access point device, so that it can directly access the switched channel without performing the process of polling the channel list. channel, shortening the switching time.
  • 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 channels of other access point devices to connect to other access point devices.
  • the server can adjust the load number of each access point device, so that the electronic device 800 can directly obtain the channel of the switched access point device from the access point device connected to it, so as to access the switched access point device. Access point device.
  • the electronic device 800 only needs to receive the scanning control information once to perform the entire process of polling the channel list, thereby saving time for channel scanning.
  • the electronic device 800 can scan the multiple channels at the same time, thereby improving the scanning efficiency.
  • the electronic device 800 can directly obtain the switched channel of the access point device from the access point device, so that the switched channel can be directly accessed without performing the process of polling the channel list, which shortens the switching time.
  • the electronic device 800 may also directly acquire the channel of the switched access point device from the access point device connected thereto, so as to access the switched access point device.
  • FIG. 9 is a flowchart illustrating a wireless communication method performed by an electronic device 200 as a network-side device in a wireless communication system according to an embodiment of the present disclosure.
  • step S910 scan control information is generated, the scan control information includes frequency information of a plurality of channel groups, and each channel group of the plurality of channel groups includes one or more channels.
  • step S920 scan control information is sent to the user equipment, so that the user equipment scans a plurality of channels included in the scan control information in sequence to connect to the access point device.
  • the frequency information of the plurality of channel groups includes the start frequency and the end frequency of each channel group, or the frequency information of the plurality of channel groups includes the start frequency, The end frequency of the last channel group and the band width of each channel group.
  • the wireless communication method further includes: determining scanning control information according to at least one of the following parameters: scanning speed of the user equipment, scanning frequency band width of the user equipment, location information of the user equipment, and available channel information.
  • the wireless communication method further comprises: determining the switched channel information of the access point device; and sending the switched channel information to the access point device, so that the access point device can send the switched channel information to the user equipment.
  • the wireless communication method further includes: for each user equipment, determining an access point device connected to the user equipment; and sending channel information of the access point device to the user equipment for the user equipment to connect to the access point equipment.
  • determining the access point devices connected to the user equipment includes: determining the access point devices connected to the user equipment according to the number of user equipments connected to each access point device.
  • the wireless communication method further comprises: making the order of the plurality of frequency channel groups included in the scanning control information for different user equipments different.
  • the wireless communication method further comprises: for each access point device, determining the channel of the access point device according to the interference information of each channel; and sending the channel information of the access point device to the access point device.
  • the wireless communication method further comprises: receiving interference information of each frequency channel from one or more interference sensing devices.
  • the wireless communication method further comprises: determining the switched access point device of the user equipment; and reducing the transmit power of the access point device currently connected to the user equipment, and increasing the transmit power of the switched access point device.
  • the subject performing the above method may be the electronic device 200 according to the embodiment of the present disclosure, so all the foregoing embodiments about the electronic device 200 are applicable to this.
  • 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.
  • step S1010 scan control information is received from the server, where the scan control information includes frequency information of a plurality of channel groups, and each channel group of the plurality of channel groups includes one or more channels.
  • step S1020 a plurality of channels included in the scan control information are sequentially scanned to connect to the access point device.
  • the frequency information of the plurality of channel groups includes the start frequency and the end frequency of each channel group, or the frequency information of the plurality of channel groups includes the start frequency, the last frequency of the first channel group among the plurality of channel groups The stop frequency of the channel group and the band width of each channel group.
  • the wireless communication method further comprises: sending the scanning speed of the electronic device and/or the scanning frequency band width of the electronic device to the server, so that the server can determine the scanning control information.
  • the wireless communication method further comprises: receiving the switched channel information of the access point device from the access point device; switching to the switched channel to connect to the access point device.
  • switching to the switched channel is performed.
  • the wireless communication method further includes: receiving channel information of other access point devices from the access point device; and switching to channels of the other access point devices to connect to the other access point devices.
  • the subject performing the above method may be the electronic device 800 according to the embodiment of the present disclosure, so all the foregoing embodiments about the electronic device 800 are applicable to this.
  • the electronic device 200 may be provided 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 comprising a single die, and a card or blade inserted into a slot of a blade server) mounted on a server.
  • the electronic device 200 can also be set in a network-side device, and the network-side device can be any type of base station device, such as a macro eNB and a small eNB, and can also be implemented as any type of gNB (base station in a 5G system).
  • Small eNBs may be eNBs covering cells smaller than macro cells, such as pico eNBs, micro eNBs, and home (femto) eNBs.
  • the base station may be implemented as any other type of base station, such as NodeB and base transceiver station (BTS).
  • a base station may include: a subject (also referred to as a base station device) configured to control wireless communications; and one or more remote radio heads (RRHs) disposed at a different location than the subject.
  • RRHs remote radio heads
  • the electronic device 800 may be provided in user equipment, which may be implemented as mobile terminals such as smart phones, tablet personal computers (PCs), notebook PCs, portable game consoles, portable/dongle-type mobile routers, and digital cameras. ) or an in-vehicle terminal (such as a car navigation device).
  • the user equipment may also be implemented as a terminal performing machine-to-machine (M2M) communication (also referred to as a machine type communication (MTC) terminal).
  • M2M machine-to-machine
  • MTC machine type communication
  • the user equipment may be a wireless communication module (such as an integrated circuit module comprising a single die) mounted on each of the above-mentioned user equipments.
  • FIG. 11 is a block diagram illustrating an example of a server 1100 in which the electronic device 200 according to the present disclosure may be implemented.
  • the server 1100 includes a processor 1101 , a memory 1102 , a storage device 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 random access memory (RAM) and read only memory (ROM), and stores data and programs executed by the processor 1101 .
  • the storage device 1103 may include storage media such as semiconductor memories and hard disks.
  • the network interface 1104 is a wired communication interface for connecting the server 1100 to the wired communication network 1105 .
  • the wired communication network 1105 may be a core network such as an evolved packet core network (EPC) or a packet data network (PDN) such as the Internet.
  • EPC evolved packet core network
  • PDN packet data network
  • the bus 1106 connects the processor 1101, the memory 1102, the storage device 1103, and the network interface 1104 to each other.
  • Bus 1106 may include two or more buses (such as a high speed bus and a low speed bus) each having a different speed.
  • 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 can be implemented by the processor 1101 , and
  • the communication unit 220 described using FIG. 2 may be implemented by the network interface 1104 .
  • the processor 1101 may execute the instructions stored in the memory 1102 or the storage device 1103 to generate scan control information, determine trigger switching, determine the channel after switching, determine the access point connected to the user equipment, control the access point function of transmit power.
  • eNB 1200 is a block diagram illustrating a first example of a schematic configuration of an eNB to which techniques of the present disclosure may be applied.
  • eNB 1200 includes one or more antennas 1210 and base station equipment 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 by the base station apparatus 1220 to transmit and receive wireless signals.
  • eNB 1200 may include multiple antennas 1210.
  • multiple antennas 1210 may be compatible with multiple frequency bands used by eNB 1200.
  • FIG. 12 shows an example in which the eNB 1200 includes multiple antennas 1210, the eNB 1200 may also include a single antenna 1210.
  • the base station apparatus 1220 includes a controller 1221 , a 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 a higher layer of the base station apparatus 1220 .
  • the controller 1221 generates data packets from data in the signal processed by the wireless communication interface 1225, and communicates the generated packets via the network interface 1223.
  • the controller 1221 may bundle data from a plurality of baseband processors to generate a bundled packet, and deliver the generated bundled packet.
  • the controller 1221 may have logical functions to perform controls such as radio resource control, radio bearer control, mobility management, admission control, and scheduling. This control may be performed in conjunction with nearby eNB or core network nodes.
  • the memory 1222 includes RAM and 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 .
  • Controller 1221 may communicate with core network nodes or further eNBs via network interface 1223 .
  • the eNB 1200 and core network nodes or other eNBs may be connected to each other through logical interfaces such as S1 interface and X2 interface.
  • the network interface 1223 may also be a wired communication interface or a wireless communication interface for wireless backhaul. If the network interface 1223 is a wireless communication interface, the network interface 1223 may use a higher frequency band for wireless communication than the frequency band used by the wireless communication interface 1225 .
  • Wireless communication interface 1225 supports any cellular communication scheme, such as Long Term Evolution (LTE) and LTE-Advanced, and provides wireless connectivity to terminals located in cells of eNB 1200 via antenna 1210.
  • 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 performs layers such as L1, Medium Access Control (MAC), Radio Link Control (RLC), and Packet Data Convergence Protocol (PDCP)) various types of signal processing.
  • the BB processor 1226 may have some or all of the above-described logical functions.
  • the BB processor 1226 may be a memory storing a communication control program, or a module including a processor and associated circuitry configured to execute the program.
  • the update procedure may cause the functionality of the BB processor 1226 to change.
  • the module may be a card or blade that is inserted into a slot in the base station device 1220. Alternatively, the module can also be a chip mounted on a card or blade.
  • the RF circuit 1227 may include, for example, a mixer, a filter, and an amplifier, and transmit and receive wireless signals via the antenna 1210 .
  • the wireless communication interface 1225 may include multiple BB processors 1226 .
  • multiple BB processors 1226 may be compatible with multiple frequency bands used by eNB 1200.
  • the wireless communication interface 1225 may include a plurality of RF circuits 1227 .
  • multiple RF circuits 1227 may be compatible with multiple antenna elements.
  • FIG. 12 shows an example in which the wireless communication interface 1225 includes multiple BB processors 1226 and multiple RF circuits 1227 , the wireless communication interface 1225 may also include a single BB processor 1226 or a single RF circuit 1227 .
  • eNB 13 is a block diagram illustrating a second example of a schematic configuration of an eNB to which techniques of the present disclosure may be applied.
  • eNB 1330 includes one or more antennas 1340, base station equipment 1350, and RRH 1360.
  • the RRH 1360 and each antenna 1340 may be connected to each other via an RF cable.
  • the base station apparatus 1350 and the RRH 1360 may be connected to each other via a high-speed line such as an optical fiber 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 by the RRH 1360 to transmit and receive wireless signals.
  • the eNB 1330 may include multiple antennas 1340.
  • multiple antennas 1340 may be compatible with multiple frequency bands used by eNB 1330.
  • 13 shows an example in which the eNB 1330 includes multiple antennas 1340, the eNB 1330 may also include a single antenna 1340.
  • the base station apparatus 1350 includes a controller 1351 , a 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 .
  • Wireless communication interface 1355 supports any cellular communication scheme, such as LTE and LTE-Advanced, and provides wireless communication via RRH 1360 and antenna 1340 to terminals located in a sector corresponding to RRH 1360.
  • Wireless communication interface 1355 may generally include, for example, 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 RRH 1360 via the connection interface 1357.
  • the wireless communication interface 1355 may include multiple BB processors 1356 .
  • multiple BB processors 1356 may be compatible with multiple frequency bands used by eNB 1330.
  • FIG. 13 shows an example in which the wireless communication interface 1355 includes multiple BB processors 1356
  • the wireless communication interface 1355 may also include a single BB processor 1356 .
  • connection interface 1357 is an interface for connecting the base station apparatus 1350 (the wireless communication interface 1355) to the RRH 1360.
  • the connection interface 1357 may also be a communication module for communication in the above-mentioned high-speed line connecting the base station device 1350 (the wireless communication interface 1355) to the RRH 1360.
  • RRH 1360 includes connection interface 1361 and wireless communication interface 1363.
  • connection interface 1361 is an interface for connecting the RRH 1360 (the wireless communication interface 1363 ) to the base station apparatus 1350.
  • the connection interface 1361 may also be a communication module used for communication in the above-mentioned high-speed line.
  • the wireless communication interface 1363 transmits and receives wireless signals via the antenna 1340 .
  • Wireless communication interface 1363 may typically include RF circuitry 1364, for example.
  • RF circuitry 1364 may include, for example, mixers, filters, and amplifiers, and transmit and receive wireless signals via antenna 1340 .
  • the wireless communication interface 1363 may include a plurality of RF circuits 1364 .
  • multiple RF circuits 1364 may support multiple antenna elements.
  • FIG. 13 shows 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 .
  • the processor 1101 is implemented, and may be implemented by the controller 1221 and/or the controller 1351 by using the communication unit 220 described in FIG. 2 . At least a part of the functions may also be implemented by the controller 1221 and the controller 1351 .
  • the controller 1221 and/or the controller 1351 may perform generating scan control information, determining a trigger switch, determining a switched channel, determining an access point connected to the user equipment, controlling the access point by executing instructions stored in the corresponding memory. A function of the transmit power of the in point.
  • FIG. 14 is a block diagram showing an example of a schematic configuration of a smartphone 1400 to which the techniques of the present disclosure may be applied.
  • Smartphone 1400 includes 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 switch 1415 , one or more antennas 1416 , bus 1417 , battery 1418 , and auxiliary controller 1419 .
  • the processor 1401 may be, for example, a CPU or a system on a chip (SoC), and controls the functions of the application layer and further layers of the smartphone 1400 .
  • the memory 1402 includes RAM and ROM, and stores data and programs executed by the processor 1401 .
  • the storage device 1403 may include storage media such as semiconductor memories and hard disks.
  • the external connection interface 1404 is an interface for connecting external devices such as memory cards and Universal Serial Bus (USB) devices to the smartphone 1400 .
  • the camera 1406 includes an image sensor such as a charge coupled device (CCD) and a complementary metal oxide semiconductor (CMOS), and generates a captured image.
  • Sensors 1407 may include a set of sensors such as measurement sensors, gyroscope sensors, geomagnetic sensors, and acceleration sensors.
  • the microphone 1408 converts the sound input to the smartphone 1400 into an audio signal.
  • the input device 1409 includes, for example, a touch sensor, a keypad, a keyboard, buttons, or switches configured to detect a touch on the screen of the display device 1410, and receives operations or information input from a 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 smartphone 1400 .
  • the speaker 1411 converts the 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 typically include, for example, BB processor 1413 and RF circuitry 1414 .
  • the BB processor 1413 may perform, for example, encoding/decoding, modulation/demodulation, and multiplexing/demultiplexing, and perform various types of signal processing for wireless communication.
  • the RF circuit 1414 may include, for example, mixers, filters, and amplifiers, and transmit and receive wireless signals via the antenna 1416 .
  • the wireless communication interface 1412 may be a chip module on which the BB processor 1413 and the RF circuit 1414 are integrated. As shown in FIG.
  • the wireless communication interface 1412 may include a plurality of BB processors 1413 and a plurality of RF circuits 1414 .
  • 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 include a single BB processor 1413 or a single RF circuit 1414 .
  • the wireless communication interface 1412 may support additional types of wireless communication schemes, such as short-range wireless communication schemes, near field communication schemes, and wireless local area network (LAN) schemes.
  • the wireless communication interface 1412 may include the BB processor 1413 and the RF circuit 1414 for each wireless communication scheme.
  • Each of the antenna switches 1415 switches the connection destination of the antenna 1416 among a plurality of circuits included in the wireless communication interface 1412 (eg, circuits for different wireless communication schemes).
  • 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.
  • smartphone 1400 may include multiple antennas 1416 .
  • FIG. 14 shows an example in which the smartphone 1400 includes multiple antennas 1416
  • the smartphone 1400 may also include a single antenna 1416 .
  • the smartphone 1400 may include an antenna 1416 for each wireless communication scheme.
  • the antenna switch 1415 can be omitted from the configuration of the smartphone 1400 .
  • the bus 1417 connects the processor 1401, the memory 1402, the storage device 1403, the external connection interface 1404, the camera 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 connect.
  • the battery 1418 provides power to the various blocks of the smartphone 1400 shown in FIG. 14 via feeders, which are partially shown in phantom in the figure.
  • the auxiliary controller 1419 operates the minimum necessary functions of the smartphone 1400, eg, in a sleep mode.
  • 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 processor 1401 or auxiliary controller 1419 .
  • the processor 1401 or the auxiliary controller 1419 may perform functions of scanning channels according to scan control information and scanning channels according to received channels by executing instructions stored in the memory 1402 or the storage device 1403 .
  • FIG. 15 is a block diagram showing an example of a schematic configuration of a car navigation apparatus 1520 to which the techniques 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, a sensor 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 battery 1538 .
  • GPS global positioning system
  • the processor 1521 may be, for example, a CPU or a SoC, and controls the navigation function and other functions of the car navigation device 1520 .
  • the memory 1522 includes RAM and 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.
  • Sensors 1525 may include a set of sensors such as gyroscope sensors, geomagnetic sensors, and air pressure sensors.
  • the data interface 1526 is connected to, for example, the in-vehicle network 1541 via a terminal not shown, and acquires data generated by the vehicle, such as vehicle speed data.
  • the content player 1527 reproduces content stored in storage media such as CDs and DVDs, which are inserted into the storage media 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 operations or information input from a user.
  • the display device 1530 includes a screen such as an LCD or OLED display, and displays images or reproduced content of a navigation function.
  • 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.
  • Wireless communication interface 1533 may generally include, for example, 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.
  • the RF circuit 1535 may include, for example, a mixer, a filter, and an amplifier, and transmit and receive wireless signals via the antenna 1537 .
  • the wireless communication interface 1533 can also be a chip module on which the BB processor 1534 and the RF circuit 1535 are integrated. As shown in FIG.
  • the wireless communication interface 1533 may include a plurality of BB processors 1534 and a plurality of RF circuits 1535 .
  • 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 .
  • 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.
  • the wireless communication interface 1533 may include the BB processor 1534 and the RF circuit 1535 for each wireless communication scheme.
  • Each of the antenna switches 1536 switches the connection destination of the antenna 1537 among a plurality of circuits included in the wireless communication interface 1533, such as circuits for different wireless communication schemes.
  • 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.
  • the car navigation device 1520 may include a plurality of antennas 1537 .
  • FIG. 15 shows an example in which the car navigation device 1520 includes multiple antennas 1537 , the car navigation device 1520 may also include a single antenna 1537 .
  • the car navigation device 1520 may include an antenna 1537 for each wireless communication scheme.
  • the antenna switch 1536 may be omitted from the configuration of the car navigation apparatus 1520 .
  • the battery 1538 provides power to the various blocks of the car navigation device 1520 shown in FIG. 15 via feeders, which are partially shown as dashed lines in the figure.
  • the battery 1538 accumulates power supplied from the vehicle.
  • control unit 820 described by using FIG. 8 may be implemented by the processor 1521 . At least a portion of the functionality may also be implemented by the processor 1521 .
  • the processor 1521 may perform functions of scanning channels according to 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 in-vehicle network 1541 .
  • the units shown in dotted boxes in the functional block diagram shown in the accompanying drawings all indicate that the functional unit is optional in the corresponding device, and each optional functional unit can be combined in an appropriate manner to realize the required function .
  • a plurality of functions included in one unit in the above embodiments may be implemented by separate devices.
  • multiple functions implemented by multiple units in the above embodiments may be implemented by separate devices, respectively.
  • one of the above functions may be implemented by multiple units. Needless to say, such a configuration is included in the technical scope of the present disclosure.
  • the steps described in the flowcharts include not only processing performed in time series in the stated order, but also processing performed in parallel or individually rather than necessarily in time series. Furthermore, even in the steps processed in time series, needless to say, the order can be appropriately changed.

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention se rapporte à un dispositif électronique, à un procédé de communication sans fil et à un support de stockage lisible par ordinateur. Le dispositif électronique selon la présente divulgation comprend un circuit de traitement qui est configuré pour : générer des informations de commande de balayage, les informations de commande de balayage comprenant des informations de fréquence d'une pluralité de groupes de canaux, chaque groupe de canaux dans la pluralité de groupes de canaux comprenant un ou plusieurs canaux; et envoyer les informations de commande de balayage à un équipement d'utilisateur de sorte que l'équipement d'utilisateur balaie successivement une pluralité de canaux compris dans les informations de commande de balayage de façon à se connecter à un dispositif de point d'accès. Par l'utilisation du dispositif électronique, du procédé de communication sans fil et du support de stockage lisible par ordinateur selon la présente divulgation, un processus de commande de connexion pour un point d'accès et un équipement d'utilisateur peut être optimisé, ce qui raccourcit le temps utilisé par l'équipement d'utilisateur pour accéder au point d'accès et améliore la qualité de communication du point d'accès et de l'équipement d'utilisateur. (FIG. 2)
PCT/CN2021/106679 2020-07-23 2021-07-16 Dispositif électronique, procédé de communication sans fil et support de stockage lisible par ordinateur WO2022017265A1 (fr)

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CN101616215A (zh) * 2008-06-23 2009-12-30 Lg电子株式会社 移动终端及在其中管理频道列表的方法
US20100321589A1 (en) * 2009-06-17 2010-12-23 Samsung Electronics Co. Ltd. Mobile terminal capable of receiving mobile broadcast services and channel control method therefor
US20150351009A1 (en) * 2014-05-28 2015-12-03 Qualcomm Incorporated Systems and methods for searching for a public land mobile network (plmn)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050288015A1 (en) * 2004-06-25 2005-12-29 Shahrnaz Azizi Intelligent channel scanning in a wireless network
CN101309102A (zh) * 2007-05-16 2008-11-19 三星电子株式会社 在频率环境中扫描空闲频道的方法和设备
CN101447838A (zh) * 2007-11-30 2009-06-03 Lg电子株式会社 移动终端及其频道扫描方法
CN101616215A (zh) * 2008-06-23 2009-12-30 Lg电子株式会社 移动终端及在其中管理频道列表的方法
US20100321589A1 (en) * 2009-06-17 2010-12-23 Samsung Electronics Co. Ltd. Mobile terminal capable of receiving mobile broadcast services and channel control method therefor
US20150351009A1 (en) * 2014-05-28 2015-12-03 Qualcomm Incorporated Systems and methods for searching for a public land mobile network (plmn)

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