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

Abstract

Electronic devices, wireless communication methods, and non-transitory computer-readable storage media are provided. An electronic device includes processing circuitry configured to: perform, within a channel occupancy time following successful access by the electronic device to an unlicensed frequency band, first uplink data transmission to a first transmission point; and perform, within a remaining time of the channel occupancy time following completion of the first uplink data transmission, second uplink data transmission to a second transmission point based on an acknowledgement message from the second transmission point in proximity to the first transmission point, wherein the acknowledgement message is transmitted by the second transmission point to the electronic device in response to an additional transmission request transmitted by the first transmission point to the second transmission point following completion of the first uplink data transmission. According to at least one aspect of embodiments of the present disclosure, channel occupancy time obtained by a user equipment can be shared among multiple transmission points, thereby improving resource utilization of an unlicensed frequency band.

Description

[0001] This application claims priority to Chinese Patent Application No. 202010596873.9, filed on June 28, 2020, entitled "Electronic Device, Wireless Communication Method and Non-transitory Computer-Readable Storage Medium", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of wireless communication technology, and more specifically, to electronic devices for implementing transmission on unlicensed frequency bands, wireless communication methods in electronic devices, and non-transitory computer-readable storage media. Background Technology

[0003] To access unlicensed frequency bands, User Equipment (UE) needs to perform channel detection, such as Listen Before Talk (LBT), to determine if the unlicensed channel is idle. When the channel detection result indicates that the unlicensed channel is idle (also referred to as "channel detection successful" or "LBT successful" where appropriate), the UE can successfully access the unlicensed frequency band, thereby obtaining Channel Occupancy Time (COT) to continuously occupy the channel and transmit within the COT. When the channel detection result indicates that the unlicensed channel is occupied, the UE needs to randomly back off and perform channel detection again.

[0004] Similarly, in order to access unlicensed frequency bands, one or more Transmission and Reception Points (TRPs) serving the UE also need to perform channel detection to determine whether the unlicensed channel is idle, and can only successfully access the unlicensed frequency band to obtain COT and make transmissions when the unlicensed channel is idle.

[0005] In the above mechanism, the UE and TRP obtain and use their respective COTs, without considering the sharing of COTs between the UE and TRP, resulting in the failure to fully utilize the obtained COT resources. Summary of the Invention

[0006] A brief overview of this disclosure is given below to provide a basic understanding of certain aspects of it. However, it should be understood that this overview is not an exhaustive summary of this disclosure. It is not intended to identify key or essential parts of this disclosure, nor is it intended to limit the scope of this disclosure. Its purpose is merely to present certain concepts of this disclosure in a simplified form as a prelude to the more detailed description that follows.

[0007] In view of the above problems, at least one aspect of the present disclosure is to provide an electronic device, a wireless communication method in the electronic device, and a non-transitory computer-readable storage medium that enables the sharing of COT obtained by a user equipment between the user equipment and a transmission point, thereby improving the resource utilization of unlicensed frequency bands.

[0008] According to one aspect of this disclosure, an electronic device is provided, comprising processing circuitry configured to: perform a first uplink data transmission to a first transmission point during a channel occupancy period after the electronic device successfully accesses an unlicensed frequency band; and, during a remaining period after the completion of the first uplink data transmission during the channel occupancy period, perform a second uplink data transmission to a second transmission point based on an acknowledgment message from a second transmission point near the first transmission point, wherein the acknowledgment message is sent by the second transmission point to the electronic device in response to an additional transmission request sent by the first transmission point to the second transmission point after the completion of the first uplink data transmission.

[0009] According to another aspect of this disclosure, an electronic device is also provided, comprising processing circuitry configured to: receive a first uplink data transmission from the user equipment during a channel occupancy period after the user equipment successfully accesses an unlicensed frequency band; and, during the remaining time after the first uplink data transmission is completed during the channel occupancy period, send an additional transmission request for a second uplink data transmission from the user equipment to another electronic device near the electronic device.

[0010] According to another aspect of this disclosure, an electronic device is also provided, comprising processing circuitry configured to: receive, during the remaining time of channel occupancy after a user equipment successfully accesses an unlicensed frequency band, an additional transmission request from another electronic device regarding the user equipment, wherein the additional transmission request is sent by the other electronic device after completing a first uplink data transmission from the user equipment during the channel occupancy time; send an acknowledgment message to the user equipment in response to the additional transmission request; and receive, during the remaining time, a second uplink data transmission performed by the user equipment based on the acknowledgment message.

[0011] According to another aspect of this disclosure, an electronic device is also provided, comprising a processing circuit configured to: receive a transmission request from a first transmission point and a second transmission point; simultaneously send an acknowledgment message to the first transmission point and the second transmission point during a channel occupancy period after successfully accessing an unlicensed frequency band in response to the transmission request; and simultaneously receive downlink data from the first transmission point and the second transmission point during the channel occupancy period.

[0012] According to another aspect of this disclosure, an electronic device is also provided, comprising processing circuitry configured to: send a transmission request to a user equipment; receive an acknowledgment message from the user equipment during a channel occupancy period after the user equipment successfully accesses an unlicensed frequency band in response to the transmission request; and send downlink data to the user equipment in response to the acknowledgment message during the channel occupancy period, wherein the processing circuitry of the electronic device and another electronic device are each configured to simultaneously perform the processing of sending the transmission request, receiving the acknowledgment message, and sending downlink data.

[0013] According to another aspect of this disclosure, a wireless method in an electronic device is also provided, the method comprising: performing a first uplink data transmission to a first transmission point during a channel occupancy period after the electronic device successfully accesses an unlicensed frequency band; and performing a second uplink data transmission to a second transmission point based on an acknowledgment message from a second transmission point near the first transmission point during a remaining period after the first uplink data transmission is completed during the channel occupancy period, wherein the acknowledgment message is sent by the second transmission point to the electronic device in response to an additional transmission request sent by the first transmission point to the second transmission point after the first uplink data transmission is completed.

[0014] According to another aspect of this disclosure, a wireless method in an electronic device is also provided, the method comprising: receiving a first uplink data transmission from the user equipment during a channel occupancy period after the user equipment has successfully accessed an unlicensed frequency band; and sending an additional transmission request for a second uplink data transmission from the user equipment to another electronic device near the electronic device during the remaining time after the first uplink data transmission is completed during the channel occupancy period.

[0015] According to another aspect of this disclosure, a wireless method in an electronic device is also provided, the method comprising: receiving an additional transmission request from another electronic device regarding the user device during the remaining time of channel occupancy after the user device has successfully accessed an unlicensed frequency band, wherein the additional transmission request is sent by the other electronic device after completing a first uplink data transmission from the user device during the channel occupancy time; sending an acknowledgment message to the user device in response to the additional transmission request; and receiving a second uplink data transmission performed by the user device based on the acknowledgment message during the remaining time.

[0016] According to another aspect of this disclosure, a wireless method in an electronic device is also provided, the method comprising: receiving a transmission request from a first transmission point and a second transmission point; simultaneously sending an acknowledgment message to the first transmission point and the second transmission point during a channel occupancy period after successfully accessing an unlicensed frequency band in response to the transmission request; and simultaneously receiving downlink data from the first transmission point and the second transmission point during the channel occupancy period.

[0017] According to another aspect of this disclosure, a wireless method in an electronic device is also provided, the method comprising: sending a transmission request to a user equipment; receiving an acknowledgment message from the user equipment during a channel occupancy period after the user equipment successfully accesses an unlicensed frequency band in response to the transmission request; and sending downlink data to the user equipment in response to the acknowledgment message during the channel occupancy period, wherein the electronic device and another electronic device simultaneously perform the processes of sending the transmission request, receiving the acknowledgment message, and sending downlink data.

[0018] According to another aspect of this disclosure, a non-transitory computer-readable storage medium storing executable instructions is also provided, which, when executed by a processor, cause the processor to perform various functions of the aforementioned electronic device or wireless communication method in the electronic device.

[0019] In accordance with other aspects of this disclosure, computer program code and computer program products for implementing the methods described above according to this disclosure are also provided.

[0020] According to at least one aspect of the embodiments of this disclosure, the COT obtained by the user equipment can be shared among multiple transmission points, thereby improving the resource utilization of unlicensed frequency bands.

[0021] Other aspects of embodiments of this disclosure are set forth in the following description section, wherein preferred embodiments of the present disclosure are described in detail without limiting them. Attached Figure Description

[0022] The accompanying drawings described herein are for illustrative purposes only and not for all possible implementations, and are not intended to limit the scope of this disclosure. In the drawings:

[0023] Figure 1 This is a block diagram illustrating a configuration example of an electronic device on the user equipment side according to a first embodiment of the present disclosure;

[0024] Figure 2 This is a schematic diagram illustrating an example application scenario according to a first embodiment of the present disclosure;

[0025] Figure 3This is a block diagram illustrating a configuration example of an electronic device on the first transmission point side according to a first embodiment of the present disclosure;

[0026] Figure 4 This is a block diagram illustrating a configuration example of an electronic device on the second transmission point side according to a first embodiment of the present disclosure;

[0027] Figure 5 This is a schematic diagram illustrating an example of a shared COT according to a first embodiment of the present disclosure;

[0028] Figure 6 This is a block diagram illustrating a configuration example of an electronic device on the user equipment side according to a second embodiment of the present disclosure;

[0029] Figure 7 This is a schematic diagram illustrating an example application scenario of a second embodiment of the present disclosure;

[0030] Figure 8 This is a block diagram illustrating a configuration example of an electronic device on the transmission point side according to a second embodiment of the present disclosure;

[0031] Figure 9 This is a schematic diagram illustrating an example of a shared COT according to a second embodiment of the present disclosure;

[0032] Figure 10 This is a flowchart illustrating a process example of a wireless communication method on the user equipment side according to a first embodiment of the present disclosure;

[0033] Figure 11 This is a flowchart illustrating a process example of a wireless communication method on the first transmission point side according to a first embodiment of the present disclosure;

[0034] Figure 12 This is a flowchart illustrating a process example of a wireless communication method on the second transmission point side according to a first embodiment of the present disclosure;

[0035] Figure 13 This is a flowchart illustrating a process example of a wireless communication method on the user equipment side according to a second embodiment of the present disclosure;

[0036] Figure 14 This is a flowchart illustrating a process example of a wireless communication method on the transmission point side according to a second embodiment of the present disclosure;

[0037] Figure 15 This is a block diagram illustrating a first example of a schematic configuration of an eNB that can be used as a transmission point to apply the technologies of this disclosure;

[0038] Figure 16 This is a block diagram illustrating a second example of a schematic configuration of an eNB that can be used as a transmission point to apply the technologies of this disclosure;

[0039] Figure 17 This is a block diagram illustrating an example of a schematic configuration of a smartphone to which the technologies of this disclosure can be applied;

[0040] Figure 18 This is a block diagram illustrating an example of a schematic configuration of a car navigation device to which the technologies of this disclosure can be applied.

[0041] While this disclosure is readily subject to various modifications and substitutions, specific embodiments thereof have been shown by way of example in the accompanying drawings and are described in detail herein. However, it should be understood that the description of specific embodiments herein is not intended to limit this disclosure to the specific forms disclosed, but rather, this disclosure is intended to cover all modifications, equivalents, and substitutions falling within the spirit and scope of this disclosure. It should be noted that throughout the drawings, corresponding reference numerals indicate corresponding parts. Detailed Implementation

[0042] Examples of this disclosure will now be described more fully with reference to the accompanying drawings. The following description is merely exemplary and is not intended to limit the disclosure, its application, or its uses.

[0043] Example embodiments are provided so that this disclosure will become exhaustive and will fully convey its scope to those skilled in the art. Numerous specific details, such as examples of particular components, apparatus, and methods, are set forth to provide a detailed understanding of embodiments of this disclosure. It will be apparent to those skilled in the art that the specific details are not required, and that the example embodiments may be implemented in many different forms, none of which should be construed as limiting the scope of this disclosure. In some example embodiments, well-known processes, well-known structures, and well-known techniques are not described in detail.

[0044] The description will proceed in the following order:

[0045] 1. Problem Description

[0046] 2. Configuration example of the first embodiment (uplink scenario)

[0047] 2.1 Configuration example of electronic devices on the user equipment side

[0048] 2.2 Configuration Example of Electronic Equipment on the First Transmission Point Side

[0049] 2.3 Configuration Example of Electronic Equipment on the Second Transmission Point Side

[0050] 2.4 Examples of Shared COT Figure 5

[0051] 3. Configuration example of the second embodiment (downlink scenario)

[0052] 3.1 Configuration example of electronic devices on the user equipment side

[0053] 3.2 Configuration Example of Electronic Equipment on the Transmission Point Side

[0054] 3.3 Examples of Shared COT

[0055] 4. Method Examples

[0056] 4.1 Method Implementation Example of the First Embodiment (Uplink Scenario)

[0057] 4.2 Method Implementation Example of the Second Embodiment (Downlink Scenario)

[0058] 5. Application Examples

[0059] <1. Problem Description>

[0060] In the prior art, in order to access unlicensed frequency bands, the UE and one or more TRPs serving the UE obtain and use their respective COTs, without considering the sharing of COTs between the UE and TRPs, resulting in the failure to fully utilize the obtained COT resources.

[0061] To this end, this disclosure provides an electronic device, a wireless communication method in the electronic device, and a non-transitory computer-readable storage medium that enables the sharing of COT obtained by a user equipment between the user equipment and multiple transmission points, thereby improving the resource utilization of unlicensed frequency bands.

[0062] The electronic device on the user equipment side according to this disclosure can be implemented as various user equipment, such as mobile terminals (e.g., smartphones, tablet PCs, laptop PCs, portable gaming terminals, portable / dongle-type mobile routers, and digital camera devices) or in-vehicle terminals (e.g., car navigation devices). The aforementioned user equipment can also be implemented as a terminal performing machine-to-machine (M2M) communication (also known as a machine-type communication (MTC) terminal). Furthermore, the user equipment may include a wireless communication module (e.g., an integrated circuit module comprising a single chip) installed on each of the aforementioned terminals.

[0063] The electronic device on the transmission point side according to this disclosure can be implemented as various types of TRPs. The TRP can have transmitting and receiving functions, for example, it can receive information from user equipment and base station equipment, and it can also transmit information to user equipment and base station equipment. In a typical example, the TRP can provide services to user equipment and is controlled by the base station equipment. Furthermore, the TRP can have a structure similar to that of the base station equipment, or it can only have the structures related to transmitting and receiving information found in the base station equipment.

[0064] The following will describe configuration examples and method embodiments of various electronic devices according to the first embodiment of the uplink scenario and the second embodiment of the downlink scenario, respectively.

[0065] <2. Configuration Example of the First Implementation (Uplink Scenario)>

[0066] [2.1 Configuration example of electronic devices on the user equipment side]

[0067] Figure 1 This is a block diagram illustrating a configuration example of an electronic device on the user equipment side according to a first embodiment of the present disclosure.

[0068] like Figure 1 As shown, the electronic device 100 may include a transmitting unit 110, a receiving unit 120, and an optional channel detection unit 130.

[0069] Here, each unit of the electronic device 100 can be included in the processing circuit. It should be noted that the electronic device 100 may include one or more processing circuits. Furthermore, 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 can be physical entities or logical entities, and units with different names may be implemented by the same physical entity.

[0070] Furthermore, electronic device 100 is described herein as an example of user equipment itself; however, those skilled in the art will understand that electronic device 100 can also be implemented as other electronic devices having the functions of transmitting unit 110 and receiving unit 120 (and optional channel detection unit 130) and, for example, attached to or communicating with user equipment. As an example, the following description of the processing of the electronic device and its various units will be based on the case where the electronic device operates in a New Radio-Unlicensed (NR-U) spectrum such as 60 GHz; however, those skilled in the art will understand that the embodiments of this disclosure are not limited thereto.

[0071] According to embodiments of this disclosure, when a user equipment (UE) needs to perform uplink data transmission, for example, an electronic device 100 acting as a UE can perform channel detection such as LBT through an optional channel detection unit 130, and can access an unlicensed frequency band when the LBT result indicates that the channel is idle, thereby obtaining COT for uplink data transmission. Here, the channel detection performed for accessing the unlicensed frequency band can be, for example, a complex channel detection such as CAT 4 LBT. In the example case where the electronic device operates in an unlicensed NR-U spectrum such as 60 GHz, the electronic device (and the transmission point serving the electronic device) can use a beam with a specific direction for communication, and the channel detection performed by the electronic device (and the transmission point described below) can be a directional LBT related to the beam direction, which will help improve spatial multiplexing.

[0072] The transmitting unit 110 of the electronic device 100 can be configured to transmit a first uplink data to a first transmission point within the Channel Occupancy Time (COT) after the user equipment successfully accesses the unlicensed frequency band. When the amount of data to be transmitted to the first transmission point is large and / or the COT length is short, the first uplink data transmission may occupy the entire COT.

[0073] On the other hand, when the amount of data to be transmitted to the first transmission point is small and / or the COT length is large, there is still remaining time in the COT after the first uplink data transmission is completed. Accordingly, the transmitting unit 110 can be further configured to perform a second uplink data transmission to the second transmission point during the remaining time after the first uplink data transmission is completed in the COT, based on, for example, an acknowledgment message received by the receiving unit 120 from a second transmission point near the first transmission point. Here, the acknowledgment message from the second transmission point is sent to the electronic device 100 by the second transmission point in response to an additional transmission request sent to the second transmission point by the first transmission point after the completion of the first uplink data transmission.

[0074] By utilizing the processing of each unit of the electronic device 100, the remaining time of the COT obtained by the user equipment can be used for uplink data transmission with the second transmission point after completing the uplink data transmission with the first transmission point. That is, the COT obtained by the user equipment is used for uplink transmission with multiple transmission points, which is equivalent to sharing the COT obtained by the user equipment among multiple transmission points, thereby improving the resource utilization efficiency of the unlicensed frequency band.

[0075] As an example, the first transmission point and the second transmission point can provide services to electronic device 100 simultaneously within the same cell. Figure 2 This is a schematic diagram illustrating an example application scenario of the first embodiment of this disclosure. For example... Figure 2As shown, the first transmission point TRP1 and the second transmission point TRP2 can provide services to the user equipment UE, which is an example of electronic device 100, within the same cell (e.g., under the same gNB), and the two can communicate with each other via fiber optic backhaul. When a transmission point TRP1 and a second transmission point TRP2 serve the UE under the same gNB (not shown), the first transmission point TRP1 sends an additional transmission request to the second transmission point TRP2 on behalf of the UE. This allows the gNB to select an appropriate second transmission point and send the additional transmission request to the second transmission point via fiber optic backhaul, thereby reducing the processing load and transmission load of the UE selecting an appropriate second transmission point and transmitting the additional transmission request.

[0076] In a preferred embodiment, the transmitting unit 110 may be further configured to: during the Channel Occupancy Time (COT), (e.g., firstly) send a first transmission request to a first transmission point, the first transmission request including information related to the expiration time of the Channel Occupancy Time (COT). As an example, the information related to the expiration time of the COT may include, for example, the duration of the COT, the expiration time of the COT, and / or the time slots available for sharing. The first transmission point receiving the first transmission request may save the information related to the expiration time of the COT and include this information in an additional transmission request to be sent to a second transmission point.

[0077] Optionally, the transmitting unit 110 can be further configured to send uplink data to the first transmission point along with the first transmission request. Currently, both Long Term Evolution (LTE) and New Radio (NR) systems employ a four-step random access process. This process sequentially includes a first message (Msg1, a handshake message sent by the transmitter), a second message (Msg2, an acknowledgment message sent by the receiver), a third message (Msg3, data sent by the transmitter), and a fourth message (Msg4, data sent by the receiver) between the transmitter and receiver. In the above configuration of the transmitting unit, sending the first transmission request along with the uplink data to the first transmission point effectively combines the first and third messages from the four-step access process into a single step, thereby reducing transmission overhead and ensuring continuous channel occupancy during transmission.

[0078] Optionally, after the electronic device 100, acting as the transmitting end, has occupied the COT through channel detection and sent a first transmission request to the first transmission point, the first transmission point, acting as the receiving end, may perform auxiliary first channel detection in response to the first transmission request to facilitate the discovery of hidden nodes on the receiving end's side. When the result of the first channel detection indicates the existence of an idle channel, the first transmission point may send an acknowledgment message to the electronic device 100. When the result of the first channel detection indicates that the channel is occupied, the first transmission point may randomly back off and perform channel detection again, for example, until an idle channel is detected or until the expiration time of the COT. As an example, the expiration time of the COT may be determined based on information related to the expiration time of the COT included in the first transmission request.

[0079] In this configuration, the transmitting unit 110 may be further configured to perform the aforementioned first uplink data transmission in response to, for example, an acknowledgment message received from the first transmission point via the receiving unit 120. This acknowledgment message is sent to the electronic device 100 by the first transmission point based on a first channel detection performed in response to a first transmission request. The acknowledgment message sent by the first transmission point based on the first channel detection indicates, for example, that the result of the first channel detection indicates the existence of an idle channel, thereby enabling the electronic device 100 to perform the first uplink data transmission via the transmitting unit 110 in response to this message.

[0080] Here, the first channel detection performed by the first transmission point in response to the first transmission request can be a simple channel detection such as CAT 2 LBT, or a complex channel detection such as CAT 4 LBT. When the first channel detection is a simple channel detection, if the result of the channel detection indicates an idle channel, the first transmission point can simply send the aforementioned acknowledgment message indicating the existence of an idle channel to the electronic device 100. On the other hand, when the first channel detection is a complex channel detection, if the result of the channel detection indicates an idle channel, the first transmission point can send downlink data to the electronic device 100 along with the aforementioned acknowledgment message.

[0081] Accordingly, in a preferred embodiment, when the first channel detection at the first transmission point is complex channel detection, the receiving unit 120 of the electronic device 100 can be further configured to receive downlink data sent from the first transmission point along with an acknowledgment message. Here, the receiving unit 120 receiving downlink data sent along with the acknowledgment message is equivalent to merging the second message (Msg2) and the fourth message (Msg4) in the four-step access random access described above into a single step for reception, thereby helping to reduce transmission overhead and ensuring continuous channel occupancy during transmission.

[0082] Similar to the auxiliary first channel detection described above for the first transmission point, preferably, the second transmission point, as the receiving end, can also perform auxiliary second channel detection in response to an additional transmission request from the first transmission point, to facilitate the discovery of hidden nodes on the second transmission point side as the receiving end. When the result of the second channel detection indicates the existence of an idle channel, the second transmission point can send an acknowledgment message to the electronic device 100. When the result of the second channel detection indicates that the channel is occupied, the second transmission point can randomly back off and perform channel detection again, for example, until an idle channel is detected or until the expiration time of the COT. As an example, the expiration time of the COT can be determined, for example, based on information related to the expiration time of the COT included in the additional transmission request.

[0083] In this case, the acknowledgment message received by the receiving unit 120 of the electronic device 100 from the second transmission point may be sent to the electronic device by the second transmission point based on a second channel detection performed in response to an additional transmission request. The acknowledgment message sent by the second transmission point based on the second channel detection may, for example, indicate that the result of the second channel detection shows the existence of an idle channel, thereby enabling the electronic device 100 to perform a second uplink data transmission through the sending unit 110 in response to the message.

[0084] Here, the second channel detection performed by the second transmission point in response to an additional transmission request can be a simple channel detection such as CAT 2 LBT or a complex channel detection such as CAT 4 LBT. When the second channel detection is a simple channel detection, if the result of the channel detection indicates an idle channel, the second transmission point can simply send the aforementioned acknowledgment message indicating the existence of an idle channel to the electronic device 100. On the other hand, when the second channel detection is a complex channel detection, if the result of the channel detection indicates an idle channel, the second transmission point can send downlink data to the electronic device 100 along with the aforementioned acknowledgment message.

[0085] Accordingly, in a preferred embodiment, when the second channel detection at the second transmission point is complex channel detection, the receiving unit 120 of the electronic device 100 can be further configured to receive downlink data sent from the second transmission point along with the acknowledgment message. Here, the receiving unit 120 receiving the downlink data sent along with the acknowledgment message is equivalent to merging the second message (Msg2) and the fourth message (Msg4) in the four-step access random access described above into a single step for reception, thereby helping to reduce transmission overhead and ensuring continuous channel occupancy during transmission.

[0086] The above-described sharing process regarding COT between electronic device 100 and the first and second transmission points can be appropriately extended to cases with more transmission points. In a preferred embodiment, if there is still remaining time in the current COT after the second uplink data transmission between electronic device 100 and the second transmission point is completed, the second transmission point can perform a similar process to that of the first transmission point, i.e., send an additional transmission request to a third transmission point near the second transmission point to assist electronic device 100 in performing a third uplink transmission with another third transmission point.

[0087] In this case, the transmitting unit 110 of the electronic device 100 can be further configured to: transmit a third uplink data to a third transmission point based on an acknowledgment message from a third transmission point near the second transmission point during the remaining time after the second uplink data transmission is completed in the channel occupancy time (COT), wherein the acknowledgment message is sent to the electronic device 100 by the third transmission point in response to an additional transmission request sent to the third transmission point by the second transmission point after the completion of the second uplink data transmission.

[0088] Reference above Figure 1 and Figure 2 A configuration example of an electronic device on the user equipment side according to a first embodiment of this disclosure is described. As described above, the electronic device according to the first embodiment of this disclosure enables the use of the COT obtained by the user equipment for uplink transmission with multiple transmission points, thereby effectively sharing the COT obtained by the user equipment among multiple transmission points, thus improving the resource utilization efficiency of unlicensed frequency bands.

[0089] [2.2 Example of Electronic Equipment Configuration at the First Transmission Point]

[0090] Figure 3 This is a block diagram illustrating a configuration example of an electronic device on the first transmission point side according to a first embodiment of the present disclosure.

[0091] like Figure 3 As shown, the electronic device 300 may include a transmitting unit 310, a receiving unit 320, and an optional channel detection unit 330.

[0092] Here, each unit of the electronic device 300 can be included in the processing circuit. It should be noted that the electronic device 300 may include one or more processing circuits. Furthermore, 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 can be physical entities or logical entities, and units with different names may be implemented by the same physical entity.

[0093] Furthermore, the electronic device 300 is described herein as an example of the first transmission point itself; however, those skilled in the art will understand that the electronic device 300 can also be implemented as other electronic devices having the functions of a transmitting unit 310 and a receiving unit 320 (and optionally a channel detection unit 330) and, for example, attached to or communicating with the first transmission point. As an example, the processing of the electronic device and its various units will be described below with the case that the electronic device operates in an unlicensed NR-U spectrum such as 60 GHz; however, those skilled in the art will understand that the embodiments of this disclosure are not limited thereto.

[0094] The receiving unit 320 of the electronic device 300 can be configured to receive a first uplink data transmission from the user equipment during the Channel Occupancy Time (COT) after the user equipment successfully accesses the unlicensed frequency band. When the amount of data transmitted in the first uplink data transmission is large and / or the COT length is short, the first uplink data transmission may occupy the entire COT.

[0095] On the other hand, when the amount of data transmitted in the first uplink data transmission is small and / or the COT length is large, there is still remaining time in the COT after the first uplink data transmission is completed. Accordingly, the transmitting unit 310 of the electronic device 300 can be configured to send an additional transmission request for the second uplink data transmission of the user equipment to another electronic device near the electronic device 300 during the remaining time after the first uplink data transmission is completed in the COT. The other electronic device is another object for the user equipment to perform uplink data transmission, and its examples may include, but are not limited to, a second transmission point that is in the same cell as the electronic device 300, which is the first transmission point, and simultaneously provides services to the user equipment. When the other electronic device, which is the second transmission point, receives the additional transmission request, it can, for example, perform corresponding processing and interact with the user equipment, so that the user equipment can perform the second uplink data transmission to the other electronic device, which is the second transmission point, during the remaining time of the COT.

[0096] By utilizing the above processing of each unit of electronic device 300, the remaining time of the COT obtained by the user equipment can be used for uplink data transmission between the user equipment and another electronic device, which is the second transmission point, after the user equipment completes uplink data transmission with electronic device 300, which is the first transmission point. In other words, it assists the user equipment in using the COT it obtained for uplink transmission with multiple transmission points, which is equivalent to sharing the COT obtained by the user equipment among multiple transmission points, thereby improving the resource utilization efficiency of unlicensed frequency bands.

[0097] Preferably, the transmitting unit 310 of the electronic device 300 can also be configured to send the additional transmission request to the other electronic device serving as a second transmission point via fiber optic backhaul. For example, the electronic device 300 serving as the first transmission point and the other electronic device serving as the second transmission point can be as follows: Figure 2 The example application scenarios shown are TRP1 and TRP2. Figure 2 As shown, the first transmission point TRP1 and the second transmission point TRP2 serve the user equipment (UE) under the same gNB (not shown), and they can communicate with each other via fiber backhaul. By having the first transmission point TRP1 send additional transmission requests to the second transmission point TRP2 on behalf of the UE, the gNB can, for example, select an appropriate second transmission point and send the additional transmission requests to the second transmission point via fiber backhaul, thereby reducing the processing and transmission load of the UE selecting an appropriate second transmission point and transmitting additional transmission requests.

[0098] In a preferred embodiment, the receiving unit 320 of the electronic device 300 may be further configured to: (e.g., firstly) receive a first transmission request from the user equipment during the channel occupancy time (COT), the first transmission request including information related to the expiration time of the channel occupancy time (COT). As an example, the information related to the expiration time of the COT may include, for example, the duration of the COT, the expiration time of the COT, and / or the time slots available for sharing. The electronic device 300 may save the information related to the expiration time of the COT from the first transmission request and include this information in an additional transmission request to be sent to the other electronic device, which is a second transmission point. In other words, the additional transmission request sent by the sending unit 310 to the other electronic device preferably includes information related to the expiration time of the COT.

[0099] Alternatively, the receiving unit 320 may be further configured to receive uplink data sent by the user equipment along with the first transmission request. In the above configuration of the receiving unit, receiving the first transmission request and uplink data together from the user equipment is equivalent to merging the first and third messages in the four-step access random access process described above into a single step for reception, thereby helping to reduce transmission overhead and ensuring continuous channel occupancy during transmission.

[0100] Optionally, after the user equipment (UE) at the sending end has occupied the COT through channel detection and sent a first transmission request to the electronic equipment 300 at the first transmission point, the electronic equipment 300 at the receiving end can perform channel detection in response to the first transmission request through its channel detection unit 330, and can send an acknowledgment message to the UE through its sending unit 310 based on the channel detection result. The aforementioned auxiliary channel detection performed by the electronic equipment 300 is beneficial for discovering hidden nodes on the side of the electronic equipment 300 at the receiving end.

[0101] More specifically, when the channel detection result of the channel detection unit 330 indicates the existence of an idle channel, the electronic device 300 can send an acknowledgment message to the user equipment via the transmitting unit 310. Correspondingly, when the user equipment receives the acknowledgment message from the electronic device 300 indicating the existence of an idle channel, it can initiate first uplink data transmission with the electronic device 300 in response to the acknowledgment message. When the channel detection result of the channel detection unit 330 indicates that the channel is occupied, it can randomly backtrack and perform channel detection again, for example, until an idle channel is detected or until the expiration time of the COT (Condition of Time). As an example, the expiration time of the COT can be determined, for example, based on information related to the expiration time of the COT included in the first transmission request received by the receiving unit 320.

[0102] Here, the channel detection performed by the channel detection unit 330 in response to the first transmission request can be a simple channel detection such as CAT 2LBT or a complex channel detection such as CAT 4LBT. When the channel detection is a simple channel detection, the transmission unit 310 of the electronic device 300 can be configured to, for example, send the aforementioned confirmation message indicating the existence of an idle channel to the user equipment only when the result of the channel detection indicates an idle channel.

[0103] On the other hand, when the channel detection performed by the channel detection unit 330 in response to the first transmission request is a complex channel detection, the transmitting unit 310 of the electronic device 300 can be configured to send downlink data to the user equipment along with the aforementioned acknowledgment message, for example, if the result of the channel detection indicates an idle channel. This configuration of the transmitting unit is equivalent to combining the second message (Msg2) and the fourth message (Msg4) in the four-step access random access described above into a single step for transmission, thereby helping to reduce transmission overhead and ensuring continuous channel occupancy during transmission.

[0104] Reference above Figure 3A configuration example of an electronic device on the first transmission point side according to a first embodiment of the present disclosure is described. As described above, the electronic device on the first transmission point side according to the first embodiment of the present disclosure enables a user equipment to use its acquired COT for uplink transmission with multiple transmission points, thereby effectively sharing the COT acquired by the user equipment among multiple transmission points, thus improving the resource utilization efficiency of unlicensed frequency bands.

[0105] [2.3 Example of Electronic Equipment Configuration on the Second Transmission Point Side]

[0106] Figure 4 This is a block diagram illustrating a configuration example of an electronic device on the second transmission point side according to a first embodiment of the present disclosure.

[0107] like Figure 4 As shown, the electronic device 400 may include a transmitting unit 410, a receiving unit 420, and an optional channel detection unit 430.

[0108] Here, each unit of the electronic device 400 can be included in the processing circuit. It should be noted that the electronic device 400 may include one or more processing circuits. Furthermore, 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 can be physical entities or logical entities, and units with different names may be implemented by the same physical entity.

[0109] Furthermore, the electronic device 400 is described herein as an example of the second transmission point itself; however, those skilled in the art will understand that the electronic device 400 can also be implemented as other electronic devices having the functions of a transmitting unit 410 and a receiving unit 420 (and optionally a channel detection unit 430) and, for example, attached to or communicating with the second transmission point. As an example, the processing of the electronic device and its various units will be described below with the case that the electronic device operates in an unlicensed NR-U spectrum such as 60 GHz; however, those skilled in the art will understand that the embodiments of this disclosure are not limited thereto.

[0110] The receiving unit 420 of electronic device 400 can be configured to receive an additional transmission request from another electronic device regarding the user equipment during the remaining time of the Channel Occupied Time (COT) after the user equipment successfully accesses the unlicensed frequency band. This additional transmission request is sent by the other electronic device after completing a first uplink data transmission from the user equipment within the COT. Here, within the COT after successful access to the unlicensed frequency band, the user equipment first performs a first uplink data transmission to the other electronic device. The data volume of the first uplink data transmission is small, and / or the COT length is long, leaving remaining time in the COT after the first uplink data transmission is completed. After the first uplink data transmission is completed, the other electronic device sends the additional transmission request to electronic device 400, which serves as a second transmission point, on behalf of the user equipment during the remaining time of the COT. Here, the other electronic device is the object to which the user equipment performs the first uplink data transmission; examples of this include, but are not limited to, a first transmission point that is in the same cell as the second transmission point electronic device 400 and simultaneously provides services to the user equipment.

[0111] The transmitting unit 410 of the electronic device 400 can be configured to send an acknowledgment message to the user equipment in response to an additional transmission request received by the receiving unit 420. The receiving unit 420 of the electronic device 400 can be further configured to receive a second uplink data transmission by the user equipment based on the acknowledgment message during the remaining time of the COT.

[0112] By utilizing the processing described above in each unit of electronic device 400, the remaining time of the COT (Coordinated Occurrence Time) obtained by the user equipment can be used for uplink data transmission with electronic device 400, which serves as a second transmission point, after completing uplink data transmission with another electronic device, for example, as a first transmission point. Accordingly, electronic device 400, serving as a second transmission point, shares the COT obtained by the user equipment with another electronic device, for example, as a first transmission point (the COT obtained by the user equipment is shared among multiple transmission points), thereby improving the resource utilization efficiency of unlicensed frequency bands.

[0113] Preferably, the receiving unit 420 of the electronic device 400 can also be configured to receive additional transmission requests from, for example, another electronic device serving as a first transmission point via fiber optic backhaul. As an example, the other electronic device serving as the first transmission point and the electronic device 400 serving as the second transmission point could be as follows: Figure 2 The example application scenarios shown are TRP1 and TRP2. Figure 2As shown, the first transmission point TRP1 and the second transmission point TRP2 serve the user equipment (UE) under the same gNB (not shown), and communicate with each other via fiber optic backhaul. The second transmission point TRP2 receives additional transmission requests sent by the first transmission point TRP1 on behalf of the UE, such that the gNB can select an appropriate second transmission point and send the additional transmission requests to the second transmission point via fiber optic backhaul, thereby reducing the processing and transmission load of the UE selecting an appropriate second transmission point and transmitting the additional transmission requests.

[0114] In a preferred embodiment, the additional transmission request received by the receiving unit 420 of the electronic device 400 from, for example, another electronic device serving as a first transmission point, includes information related to the expiration time of the Channel Occupancy Time (COT). As an example, the information related to the COT expiration time may include, for example, the duration of the COT, the expiration time of the COT, and / or the time slots available for sharing. This information may, for example, be obtained from the user equipment by the other electronic device serving as the first transmission point during communication with the user equipment.

[0115] Optionally, after the user equipment (UE) at the transmitting end has pre-occupied the COT through channel detection and another electronic device, for example, acting as the first transmission point, has sent an additional transmission request to the electronic device 400 at the second transmission point on behalf of the UE, the electronic device 400 at the receiving end can perform auxiliary channel detection in response to the additional transmission request, and can send an acknowledgment message to the UE through its transmitting unit 410 based on the channel detection result. The aforementioned auxiliary channel detection performed by the electronic device 400 is beneficial for discovering hidden nodes on the receiving end side of the electronic device 400.

[0116] More specifically, when the channel detection result of the channel detection unit 430 indicates the existence of an idle channel, the electronic device 400 can send an acknowledgment message to the user equipment via the transmitting unit 410. Correspondingly, when the user equipment receives the acknowledgment message from the electronic device 400 indicating the existence of an idle channel, it can initiate a second uplink data transmission with the electronic device 400 in response to the acknowledgment message. When the channel detection result of the channel detection unit 430 indicates that the channel is occupied, it can randomly backtrack and perform channel detection again, for example, until an idle channel is detected or until the expiration time of the COT. As an example, the expiration time of the COT can be determined, for example, based on information related to the expiration time of the COT included in the additional transmission request received by the receiving unit 420.

[0117] Here, the channel detection performed by the channel detection unit 430 in response to an additional transmission request can be a simple channel detection such as CAT 2 LBT or a complex channel detection such as CAT 4 LBT. When the channel detection is a simple channel detection, the transmission unit 410 of the electronic device 400 can be configured to, for example, send only the aforementioned confirmation message indicating the existence of an idle channel to the user equipment when the result of the channel detection indicates an idle channel.

[0118] On the other hand, when the channel detection performed by the channel detection unit 430 in response to the first transmission request is a complex channel detection, the transmitting unit 410 of the electronic device 400 can be configured to send downlink data to the user equipment along with the aforementioned acknowledgment message, for example, when the result of the channel detection indicates an idle channel. This configuration of the transmitting unit is equivalent to merging the second message (Msg2) and the fourth message (Msg4) in the four-step access random access described above into a single step for transmission, thereby helping to reduce transmission overhead and ensuring continuous channel occupancy during transmission.

[0119] Reference above Figure 4 A configuration example of an electronic device on the second transmission point side according to a first embodiment of this disclosure is described. As described above, the electronic device on the second transmission point side according to the first embodiment of this disclosure can share the COT obtained by the user equipment with another electronic device that serves as the first transmission point (the COT obtained by the user equipment is shared among multiple transmission points), thereby improving the resource utilization efficiency of unlicensed frequency bands.

[0120] [2.4 Example of Shared COT]

[0121] For ease of understanding, Figure 5 A schematic diagram illustrating an example of a shared COT according to a first embodiment of this disclosure is shown.

[0122] like Figure 5 As shown, for example, through respectively Figure 3 , Figure 4 The electronic devices 300 and 400 shown share, for example, the first transmission point TRP1 and the second transmission point TRP2 implemented by them via Figure 1 The electronic device 100 shown implements the COT obtained by the user equipment (UE).

[0123] Specifically, the user equipment (UE) obtains the channel occupancy time (COT) by successfully performing LBT (e.g., CAT 4 LBT) and sends a first transmission request (Request1) including information related to the expiration time of the COT and optional uplink data (UL data) to the first transmission point (TRP1).

[0124] In response to the first transmission request, TRP1 performs a Low-Level Transmission (LBT) (e.g., CAT 2 LBT as Simple Channel Detection or CAT 4 LBT as Complex Channel Detection) and sends an acknowledgment message ACK1 to the UE upon successful LBT. When TRP1 performs a CAT 4 LBT as Complex Channel Detection, TRP1 sends downlink data (DL data) to the UE along with the acknowledgment message ACK1.

[0125] Next, the UE receives an acknowledgment message ACK1 from TRP1 and, in response to the acknowledgment message ACK1, performs the first uplink data transmission with TRP1.

[0126] After the UE completes the first uplink data transmission with TRP1, if there is still time remaining in the current COT, TRP1 sends an additional transmission request Request2 for the second uplink data transmission of the UE to TRP2 near TRP1 on behalf of the UE.

[0127] After receiving the additional transmission request Request2, TRP2 can perform LBT (e.g., CAT 2 LBT as simple channel detection or CAT 4 LBT as complex channel detection) and send an acknowledgment message ACK2 to the UE upon successful LBT. When TRP2 performs CAT 4 LBT as complex channel detection, TRP2 sends downlink data (DL data) to the UE along with the acknowledgment message ACK2.

[0128] Accordingly, the UE can respond to the ACK2 confirmation message from TRP2 to perform a second uplink data transmission with TRP2 until the transmission is completed or the COT expires.

[0129] Reference above Figures 1 to 5 Configuration examples of various electronic devices according to a first embodiment of the present disclosure are described. These configuration examples enable the sharing of COT obtained by a user equipment between the user equipment and multiple transmission points, thereby improving the resource utilization of unlicensed frequency bands.

[0130] <3. Configuration Example of the Second Implementation (Uplink Scenario)>

[0131] [3.1 Configuration example of electronic devices on the user equipment side]

[0132] Figure 6 This is a block diagram illustrating a configuration example of an electronic device on the user equipment side according to a second embodiment of the present disclosure.

[0133] like Figure 6 As shown, the electronic device 600 may include a transmitting unit 610, a receiving unit 620, and an optional channel detection unit 630.

[0134] Here, each unit of the electronic device 600 can be included in the processing circuit. It should be noted that the electronic device 600 may include one or more processing circuits. Furthermore, 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 can be physical entities or logical entities, and units with different names may be implemented by the same physical entity.

[0135] Furthermore, the electronic device 600 is described herein as an example of the user equipment itself; however, those skilled in the art will understand that the electronic device 600 can also be implemented as other electronic devices having the functions of a transmitting unit 610 and a receiving unit 620 (and optionally a channel detection unit 630) and, for example, attached to or communicating with the user equipment. As an example, the processing of the electronic device and its various units will be described below with the case of the electronic device operating in an unlicensed NR-U spectrum such as 60 GHz; however, those skilled in the art will understand that the embodiments of this disclosure are not limited thereto.

[0136] According to a second embodiment of this disclosure, when, for example, two transmission points wish to simultaneously transmit downlink data to an electronic device 600 which is a user equipment, they can simultaneously send transmission requests to the electronic device 600, causing the electronic device 600, which is a user equipment, to respond to the transmission request by accessing an unlicensed frequency band and obtaining COT, thereby enabling these transmission points to use the COT of the user equipment to transmit downlink data.

[0137] Therefore, the receiving unit 620 of the electronic device 600 can receive transmission requests from the first transmission point and the second transmission point.

[0138] In a preferred embodiment, in response to the transmission request, electronic device 600 can perform channel detection, such as LBT, via optional channel detection unit 630, and access the unlicensed frequency band based on the channel detection result to obtain COT. For example, electronic device 600 can access the unlicensed frequency band to obtain COT when the channel detection result of channel detection unit 630 indicates that the channel is idle. Here, the channel detection performed by electronic device 600 for accessing the unlicensed frequency band can be, for example, a complex channel detection such as CAT 4 LBT. In the example case where the electronic device operates in an NR-U unlicensed spectrum such as 60 GHz, the electronic device (and the transmission point serving the electronic device) can use a beam with a specific direction for communication, and the channel detection performed by the electronic device (and the transmission point described below) can be a directional LBT related to the beam direction, which will help improve spatial multiplexing.

[0139] Within the COT after electronic device 600 successfully accesses the unlicensed frequency band in response to a transmission request, the transmitting unit 610 of electronic device 600 can simultaneously send confirmation messages to the first transmission point and the second transmission point. Upon receiving the confirmation message, the first and second transmission points can simultaneously transmit downlink data to electronic device 600 within the COT.

[0140] Accordingly, the receiving unit 620 of the electronic device 600 can simultaneously receive downlink data from the first transmission point and the second transmission point within the COT.

[0141] By utilizing the processing of each unit of the electronic device 600, the user equipment can obtain a COT in response to the transmission requests of the first and second transmission points, and use the COT for downlink data transmission at these transmission points. That is, the COT obtained by the user equipment is shared among multiple transmission points, thereby improving the resource utilization efficiency of the unlicensed frequency band.

[0142] As an example, the first and second transmission points can provide user equipment with Coordinated Multiple Points Transmission-Joint Transmission (COMP-JT). Figure 7 This is a schematic diagram illustrating an example application scenario of a second embodiment of the present disclosure. For example... Figure 7 As shown, the first transmission point TRP1 and the second transmission point TRP2 provide multi-point cooperative transmission (multi-point joint transmission) for the user equipment (UE), which is an example of electronic device 600. In this case, the downlink data sent from the network side to the UE can be considered to be divided into two parts, and the data is simultaneously sent to the UE via COMP-JT through TRP1 and TRP2. For example, the content and amount of downlink data sent via TRP1 and TRP2 can be reasonably allocated based on factors such as the quality of the link between TRP1 and the UE and the link between TRP2 and the UE. Details of downlink data transmission between TRP1 and TRP2 and the UE can be implemented by those skilled in the art using various existing methods for implementing COMP-JT, and will not be elaborated here.

[0143] In a preferred embodiment, after the electronic device 600 successfully accesses the unlicensed frequency band and obtains the Channel Occupancy Time (COT) in response to the transmission request, the confirmation message sent by the transmitting unit 610 to the first transmission point and the second transmission point may include information related to the expiration time of the COT. As an example, the information related to the expiration time of the COT may include, for example, the duration of the COT, the expiration time of the COT, and / or the time slots available for sharing. The first and second transmission points that receive the confirmation message can save the information related to the expiration time of the COT.

[0144] Alternatively, the sending unit 610 can be further configured to simultaneously send uplink data to the first transmission point and the second transmission point along with the aforementioned acknowledgment message. In the above configuration of the sending unit, sending the acknowledgment message along with the uplink data to the first and second transmission points helps reduce transmission overhead and facilitates continuous channel occupancy during transmission.

[0145] Reference above Figure 6 and Figure 7 A configuration example of an electronic device on the user equipment side according to a second embodiment of the present disclosure is described. As described above, the electronic device according to the second embodiment of the present disclosure enables the use of the COT obtained by the user equipment for downlink transmissions to the user equipment from multiple transmission points, thereby effectively sharing the COT obtained by the user equipment among multiple transmission points and thus improving the resource utilization efficiency of unlicensed frequency bands.

[0146] [3.2 Example of Electronic Equipment Configuration on the Transmission Point Side]

[0147] Figure 8 This is a block diagram illustrating a configuration example of an electronic device on the transmission point side according to a second embodiment of the present disclosure.

[0148] like Figure 8 As shown, the electronic device 800 may include a transmitting unit 810, a receiving unit 820, and an optional channel detection unit 830.

[0149] Here, each unit of the electronic device 800 can be included in the processing circuit. It should be noted that the electronic device 800 may include one or more processing circuits. Furthermore, 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 can be physical entities or logical entities, and units with different names may be implemented by the same physical entity.

[0150] Furthermore, the electronic device 800 is described herein as an example of the transmission point itself; however, those skilled in the art will understand that the electronic device 800 can also be implemented as other electronic devices having the functions of a transmitting unit 810 and a receiving unit 820 (and optionally a channel detection unit 830) and, for example, attached to or communicating with the transmission point. As an example, the processing of the electronic device and its various units will be described below with the case of the electronic device operating in an unlicensed NR-U spectrum such as 60 GHz; however, those skilled in the art will understand that the embodiments of this disclosure are not limited thereto.

[0151] According to a second embodiment of this disclosure, when, for example, two transmission points wish to simultaneously transmit downlink data to a user equipment, they can simultaneously send transmission requests to the user equipment. This causes the user equipment to respond to the transmission request by accessing an unlicensed frequency band and obtaining a Certificate of Origin (COT). Thus, these transmission points can utilize the user equipment's COT to simultaneously transmit downlink data. In the following description, electronic device 800 will be described as the first transmission point among the two transmission points, and the second transmission point among the two transmission points can have the same functional configuration as electronic device 800 and perform the same processing simultaneously.

[0152] Specifically, the transmitting unit 810 of the electronic device 800, which serves as the first transmission point, can send a transmission request to the user equipment. In response to the transmission request, the user equipment can, for example, perform channel detection and access the unlicensed frequency band to obtain COT based on the channel detection result.

[0153] Accordingly, the receiving unit 820 of the electronic device 800 can receive an acknowledgment message from the user equipment within the COT after the user equipment successfully accesses the unlicensed frequency band in response to the transmission request. The transmitting unit 810 of the electronic device 800 can send downlink data to the user equipment within the COT in response to the acknowledgment message received by the receiving unit 820.

[0154] Here, the transmitting and receiving units of the electronic device 800, which serves as the first transmission point, and the other electronic device, which serves as the second transmission point, can be configured to simultaneously perform the processing of sending transmission requests, receiving confirmation messages, and sending downlink data.

[0155] By utilizing the above processing of each unit of the two electronic devices serving as the first and second transmission points, the user equipment can obtain a COT in response to the transmission requests of the first and second transmission points and use the COT for downlink data transmission at these transmission points. That is, the COT obtained by the user equipment is shared among multiple transmission points, thereby improving the resource utilization efficiency of the unlicensed frequency band.

[0156] As an example, electronic device 800, acting as the first transmission point, and another electronic device, acting as the second transmission point, can provide multipoint cooperative transmission-joint transmission (COMP-JT) for the user equipment. For example, the two electronic devices mentioned above can be respectively as follows: Figure 7 The first transmission point TRP1 and the second transmission point TRP2 are shown, and multi-point cooperative transmission-joint transmission is provided for user equipment (UE).

[0157] Optionally, before the respective transmitting units of the electronic device 800 (serving as the first transmission point) and the other electronic device (serving as the second transmission point) send a transmission request to the user equipment, the optional channel detection units of each of the two electronic devices can simultaneously perform a first channel detection, and the respective transmitting units of the two electronic devices can send a transmission request to the user equipment based on the result of the first channel detection. As an example, the first channel detection here can be a simple channel detection such as CAT 2LBT.

[0158] Preferably, the transmitting unit 810 of the electronic device 800 can be configured to send a transmission request to the user equipment only when the first channel detection results of both the electronic device 800 and another electronic device indicate that an idle channel exists. When the channel detection results of the channel detection units of the two electronic devices indicate that one of the channels is occupied, the two electronic devices can randomly back off and perform channel detection again, for example, until the channel detection units of both electronic devices detect an idle channel or until a preset stop condition is met.

[0159] This configuration of electronic devices is beneficial for discovering hidden nodes on the electronic device side, and it helps to avoid situations where one electronic device is unable to transmit downlink data due to channel occupancy but still requires the user equipment to occupy COT, thus wasting COT resources.

[0160] In one example, within the Channel Occupancy Time (COT) after the user equipment successfully accesses the unlicensed frequency band in response to a transmission request, the acknowledgment messages received by the receiving units of the electronic device 800 (as the first transmission point) and another electronic device (as the second transmission point) from the user equipment may include information related to the expiration time of the COT. As an example, the information related to the COT expiration time may include, for example, the duration of the COT, the expiration time of the COT, and / or the available time slots for sharing. The electronic device receiving the acknowledgment message may save the information related to the COT expiration time.

[0161] Alternatively, the receiving units of the electronic device 800 serving as the first transmission point and the other electronic device serving as the second transmission point can be further configured to receive uplink data sent from the user equipment along with an acknowledgment message. In this configuration of the receiving units, uplink data is received from the user equipment along with the acknowledgment message, which helps reduce transmission overhead and ensures continuous channel occupancy during transmission.

[0162] Optionally, the receiving units of the electronic device 800 as the first transmission point and the other electronic device as the second transmission point can be further configured to: perform a second channel detection in response to an acknowledgment message received from the user equipment, and send downlink data to the user equipment based on the result of the second channel detection. As an example, the second channel detection here can be a simple channel detection such as CAT 2 LBT.

[0163] Preferably, the transmitting unit 810 of the electronic device 800 can be configured to transmit downlink data to the user equipment only when the second channel detection results of both the electronic device 800 and another electronic device indicate that an idle channel exists. When the channel detection results of the channel detection units of the two electronic devices indicate that one channel is occupied, the two electronic devices can randomly back off and perform channel detection again, for example, until both channel detection units of the two electronic devices detect an idle channel or until the expiration time of the COT. As an example, the expiration time of the COT can be determined, for example, based on information related to the expiration time of the COT included in the acknowledgment message received by the receiving unit of the electronic device.

[0164] This configuration of electronic devices is beneficial for discovering hidden nodes on the electronic device side and for avoiding situations where downlink data transmission fails due to one of the electronic devices being occupied by the channel.

[0165] Reference above Figure 8 A configuration example of an electronic device on the transmission point side according to a second embodiment of the present disclosure is described. As described above, the electronic device on the transmission point side according to the second embodiment of the present disclosure enables the use of a COT obtained by a user equipment for downlink transmission from multiple transmission points to the user equipment, thereby effectively sharing the COT obtained by the user equipment among multiple transmission points, thus improving the resource utilization efficiency of unlicensed frequency bands.

[0166] [3.3 Example of Shared COT]

[0167] For ease of understanding, Figure 9 A schematic diagram of an example of a shared COT according to a second embodiment of the present disclosure is shown.

[0168] like Figure 9 As shown, for example, through respectively Figure 8 The electronic device 800 shown implements a first transmission point TRP1 and a second transmission point TRP2 that share, for example, via Figure 6 The electronic device 600 shown implements the COT obtained by the user equipment (UE).

[0169] Specifically, the first transmission point TRP1 and the second transmission point TRP2 perform LBT (e.g., CAT 2 LBT) simultaneously, and send a transmission request to the user equipment UE when both LBTs are successful.

[0170] The UE receives the Transmission Request and performs LBT (e.g., CAT 4 LBT for Complex Channel Detection) in response to the Transmission Request, and obtains the Channel Occupancy Time (COT) after the LBT is successful. Then, the UE simultaneously sends an Acknowledgment Message (ACK) including information related to the expiration time of the COT, and optional uplink data (UL data) to TRP1 and TRP2.

[0171] TRP1 and TRP2 receive the acknowledgment message ACK and perform LBT (e.g., CAT 2 LBT as a simple channel detection) in response to the acknowledgment message ACK. When both LBTs are successful, they simultaneously send downlink data (DL data) to the UE until the transmission is completed or the COT expires.

[0172] Reference above Figures 6 to 9 Examples of configurations of various electronic devices according to a second embodiment of the present disclosure are described. These examples of configurations enable the sharing of COT obtained by a user equipment between the user equipment and multiple transmission points, thereby improving the resource utilization of unlicensed frequency bands.

[0173] <4. Method Examples>

[0174] The methods performed in an electronic device according to embodiments of this disclosure will now be described in detail. Note that these methods are implemented in accordance with the above-mentioned methods. Figures 1 to 9 Corresponding to the described device configuration examples, the details and benefits of the above device configuration examples are appropriately applied to the following method embodiments.

[0175] [4.1 Method Implementation Example of the First Embodiment (Uplink Scenario)]

[0176] Figure 10 This is a flowchart illustrating a process example of a wireless communication method on the user equipment side according to a first embodiment of the present disclosure, which can be seen, for example, from reference... Figure 1 The described user equipment side electronic device 100 is implemented.

[0177] like Figure 10As shown, in step S1001, during the channel occupancy period after an electronic device, for example, successfully accesses an unlicensed frequency band, a first uplink data transmission is performed to a first transmission point. Next, in step S1002, during the remaining time after the first uplink data transmission is completed within the channel occupancy period, a second uplink data transmission is performed to a second transmission point based on an acknowledgment message from a second transmission point near the first transmission point. Here, the acknowledgment message is sent by the second transmission point to the electronic device in response to an additional transmission request sent by the first transmission point to the second transmission point after the completion of the first uplink data transmission.

[0178] As an example, the first transmission point and the second transmission point simultaneously provide services to the electronic device within the same cell.

[0179] Optionally, the wireless communication method may further include: during the channel occupancy time, sending a first transmission request to the first transmission point, the first transmission request including information related to the expiration time of the channel occupancy time. Furthermore, the wireless communication method may further include: sending uplink data to the first transmission point along with the first transmission request.

[0180] Optionally, the wireless communication method may further include: performing the first uplink data transmission as described in step S1001 in response to an acknowledgment message from the first transmission point, the acknowledgment message being sent to the electronic device by the first transmission point based on a first channel detection performed in response to the first transmission request.

[0181] In one example, the first channel detection is complex channel detection, and the wireless communication method may further include: receiving downlink data from the first transmission point along with an acknowledgment message.

[0182] Furthermore, in one example, the acknowledgment message from the second transmission point is sent to the electronic device by the second transmission point based on a second channel detection performed in response to the additional transmission request. Optionally, the second channel detection is complex channel detection, and the wireless communication method may further include receiving downlink data from the second transmission point along with the acknowledgment message.

[0183] Optionally, the wireless communication method can be extended to a third transmission point. For example, the wireless communication method may include: during the remaining time after the second uplink data transmission is completed in the channel occupancy time, performing a third uplink data transmission to the third transmission point based on an acknowledgment message from a third transmission point near the second transmission point, wherein the acknowledgment message is sent to the electronic device by the third transmission point in response to an additional transmission request sent to the third transmission point by the second transmission point after the completion of the second uplink data transmission.

[0184] According to embodiments of this disclosure, the entity performing the above method may be an electronic device 100 according to the first embodiment of this disclosure, and therefore all aspects of the embodiments of the electronic device 100 and its functional units described above are applicable here.

[0185] Figure 11 This is a flowchart illustrating a process example of a wireless communication method on the first transmission point side according to a first embodiment of the present disclosure, which can be seen, for example, from reference... Figure 3 The described first transmission point side electronic device 300 is implemented.

[0186] like Figure 11 As shown, in a wireless communication method, for example, in an electronic device serving as the first transmission point, in step S1101, during the channel occupancy time after the user equipment successfully accesses the unlicensed frequency band, a first uplink data transmission is received from the user equipment. Next, in step S1102, during the remaining time after the first uplink data transmission is completed during the channel occupancy time, an additional transmission request for a second uplink data transmission from the user equipment is sent to another electronic device near the user equipment.

[0187] As an example, the electronic device and the other electronic device can simultaneously provide services to the user equipment within the same cell. Preferably, in step S1102, the additional transmission request can be sent to the other electronic device via fiber optic backhaul.

[0188] Preferably, the additional data transmission request sent in step S1102 may include information related to the expiration time of the channel occupancy time.

[0189] Optionally, the wireless communication method may further include: during the channel occupancy time, receiving a first transmission request from the user equipment, the first transmission request including information related to the expiration time of the channel occupancy time.

[0190] In addition, the wireless communication method may also include: receiving uplink data from the user equipment that is transmitted together with the first transmission request.

[0191] Optionally, the wireless communication method may further include: performing channel detection in response to the first transmission request, and sending an acknowledgment message to the user equipment based on the result of the channel detection.

[0192] In one example, the channel detection is simple channel detection. In another example, the channel detection is complex channel detection, and the wireless communication method may further include sending downlink data to the user equipment along with the acknowledgment message.

[0193] According to embodiments of this disclosure, the subject performing the above method may be an electronic device 300 according to the first embodiment of this disclosure, and therefore all aspects of the embodiments of the electronic device 300 and its functional units described above are applicable here.

[0194] Figure 12 This is a flowchart illustrating a process example of a wireless communication method on the second transmission point side according to a first embodiment of the present disclosure, which can be seen, for example, from reference... Figure 4 The described first transmission point side electronic device 400 is implemented.

[0195] like Figure 12 As shown, in a wireless communication method, for example, in an electronic device serving as a second transmission point, in step S1201, during the remaining time of channel occupancy after the user equipment successfully accesses the unlicensed frequency band, an additional transmission request regarding the user equipment is received from another electronic device, wherein the additional transmission request is sent by the other electronic device after completing a first uplink data transmission from the user equipment during the channel occupancy time. Next, in step S1202, in response to the additional transmission request, an acknowledgment message is sent to the user equipment. Next, in step S1203, during the remaining time, a second uplink data transmission performed by the user equipment based on the acknowledgment message is received.

[0196] As an example, the electronic device and the other electronic device can simultaneously provide services to the user equipment within the same cell. Preferably, in step S1201, the additional transmission request from the other electronic device can be received via fiber optic backhaul.

[0197] Preferably, the additional transmission request received in step S1201 may include information related to the expiration time of the channel occupancy time.

[0198] Optionally, the wireless communication method may further include: performing channel detection in response to the additional transmission request, and sending the acknowledgment information based on the result of the channel detection.

[0199] In one example, the channel detection is simple channel detection. In another example, the channel detection is complex channel detection, and the wireless communication method may further include sending downlink data to the user equipment along with the acknowledgment message.

[0200] According to embodiments of this disclosure, the subject performing the above method may be an electronic device 400 according to the first embodiment of this disclosure, and therefore all aspects of the embodiments of the electronic device 400 and its functional units described above are applicable here.

[0201] [4.2 Method Example of the Second Embodiment (Downlink Scenario)]

[0202] Figure 13 This is a flowchart illustrating a process example of a wireless communication method on the user equipment side according to a second embodiment of the present disclosure, which can be seen, for example, from reference... Figure 6 The described user equipment side electronic device 600 is implemented.

[0203] like Figure 13 As shown, in a wireless communication method of an electronic device, such as a user equipment, in step S1301, a transmission request is received from a first transmission point and a second transmission point. Next, in step S1302, during the channel occupancy period after successful access to an unlicensed frequency band in response to the transmission request, acknowledgment messages are simultaneously sent to both the first and second transmission points. Next, in step S1303, during the channel occupancy period, downlink data is simultaneously received from both the first and second transmission points.

[0204] As an example, the first transmission point and the second transmission point can provide multi-point cooperative transmission-joint transmission for the user equipment.

[0205] Optionally, the wireless communication method may further include: performing channel detection in response to the transmission request, and accessing the unlicensed frequency band based on the result of the channel detection.

[0206] Preferably, the confirmation message sent in step S1302 may include information related to the expiration time of the channel occupancy time.

[0207] Optionally, the wireless communication method may further include: simultaneously sending uplink data to the first transmission point and the second transmission point along with the confirmation message.

[0208] According to embodiments of this disclosure, the entity performing the above method may be an electronic device 600 according to a second embodiment of this disclosure, and therefore all aspects of the embodiments of the electronic device 600 and its functional units described above are applicable here.

[0209] Figure 14 This is a flowchart illustrating a process example of a wireless communication method on the transmission point side according to a second embodiment of the present disclosure, which can be seen, for example, from reference... Figure 8 The electronic device 800 described is implemented on the first transmission point side.

[0210] like Figure 14 As shown, in a wireless communication method in an electronic device, for example, serving as a first transmission point, a transmission request is sent to a user equipment in step S1401. Next, in step S1402, during the channel occupancy period after the user equipment successfully accesses the unlicensed frequency band in response to the transmission request, an acknowledgment message is received from the user equipment. Next, in step S1403, during the channel occupancy period, downlink data is sent to the user equipment in response to the acknowledgment message. Here, the electronic device and another electronic device, for example, serving as a second transmission point, simultaneously perform the processes of sending the transmission request, receiving the acknowledgment message, and sending downlink data.

[0211] As an example, the electronic device and the other electronic device can provide multi-point cooperative transmission-joint transmission for the user equipment.

[0212] Optionally, the wireless communication method may further include: (the electronic device and another electronic device) performing a first channel detection, and sending the transmission request based on the result of the first channel detection. In this case, for example, the transmission request may be sent to the user equipment in step S1401 only if the results of the first channel detection of both the electronic device and the other electronic device indicate the existence of an idle channel.

[0213] Preferably, the confirmation message received in step S1402 may include information related to the expiration time of the channel occupancy time.

[0214] Optionally, the wireless communication method may further include: (the electronic device and another electronic device) receiving uplink data from the user equipment sent together with the acknowledgment message.

[0215] Optionally, the wireless communication method may further include: (the electronic device and another electronic device) performing a second channel detection in response to the acknowledgment message, and sending downlink data to the user equipment based on the result of the second channel detection. In this case, for example, the downlink data may be sent to the user equipment in step S1403 only if the results of the second channel detection of both the electronic device and the other electronic device indicate the existence of an idle channel.

[0216] According to embodiments of this disclosure, the subject performing the above method may be an electronic device 800 according to a second embodiment of this disclosure, and therefore all aspects of the embodiments of the electronic device 800 and its functional units described above are applicable here.

[0217] <5. Application Examples>

[0218] The technology disclosed herein can be applied to a variety of products.

[0219] For example, the electronic device 100 or 600 on the user equipment side can be various user equipment, which can be implemented as a mobile terminal (such as a smartphone, tablet PC, laptop PC, portable gaming terminal, portable / dongle-type mobile router, and digital camera device) or an in-vehicle terminal (such as a car navigation device). The user equipment can also be implemented as a terminal performing machine-to-machine (M2M) communication (also known as a machine-type communication (MTC) terminal). Furthermore, the user equipment can be a wireless communication module (such as an integrated circuit module comprising a single chip) installed on each of the aforementioned user equipment.

[0220] Furthermore, the electronic devices 300, 400, or 500 on the transmission point side can be implemented as any type of TRP. This TRP can have both sending and receiving functions; for example, it can receive information from user equipment and base station equipment, and it can also send information to user equipment and base station equipment. In a typical example, the TRP can provide services to user equipment and is controlled by the base station equipment. Further, the TRP can have a structure similar to that of the base station equipment, or it can only have the structures related to sending and receiving information found in the base station equipment.

[0221] [Application examples of base stations that can be used as transmission points]

[0222] (First application example)

[0223] Figure 15 This is a block diagram illustrating a first example of a schematic configuration of an eNB to which the technologies of this disclosure can be applied. The eNB 1800 includes one or more antennas 1810 and a base station device 1820. The base station device 1820 and each antenna 1810 can be connected to each other via RF cables.

[0224] Each of the antennas 1810 includes one or more antenna elements (such as multiple antenna elements included in a multiple-input multiple-output (MIMO) antenna) and is used by the base station equipment 1820 to transmit and receive wireless signals. Figure 15 As shown, the eNB 1800 may include multiple antennas 1810. For example, the multiple antennas 1810 may be compatible with multiple frequency bands used by the eNB 1800. Although Figure 15An example is shown in which the eNB 1800 includes multiple antennas 1810, but the eNB 1800 may also include a single antenna 1810.

[0225] The base station equipment 1820 includes a controller 1821, a memory 1822, a network interface 1823, and a wireless communication interface 1825.

[0226] The controller 1821 can be, for example, a CPU or a DSP, and operates various higher-level functions of the base station equipment 1820. For example, the controller 1821 generates data packets based on data in signals processed by the wireless communication interface 1825, and transmits the generated packets via the network interface 1823. The controller 1821 can bundle data from multiple baseband processors to generate bundled packets and transmit the generated bundled packets. The controller 1821 may have logical functions that perform controls such as radio resource control, radio bearer control, mobility management, admission control, and scheduling. This control can be performed in conjunction with nearby eNBs or core network nodes. The memory 1822 includes RAM and ROM, and stores programs executed by the controller 1821 and various types of control data (such as terminal lists, transmission power data, and scheduling data).

[0227] Network interface 1823 is a communication interface used to connect base station equipment 1820 to core network 1824. Controller 1821 can communicate with core network nodes or other eNBs via network interface 1823. In this case, eNB 1800 and core network nodes or other eNBs can be connected to each other via logical interfaces (such as S1 and X2 interfaces). Network interface 1823 can also be a wired communication interface or a wireless communication interface for wireless backhaul. If network interface 1823 is a wireless communication interface, it can use a higher frequency band for wireless communication compared to the frequency band used by wireless communication interface 1825.

[0228] The wireless communication interface 1825 supports any cellular communication scheme (such as LTE and LTE-Advanced) and provides wireless connectivity to terminals located in the cell of eNB 1800 via antenna 1810. The wireless communication interface 1825 typically includes, for example, a baseband (BB) processor 1826 and RF circuitry 1827. The BB processor 1826 can perform, for example, encoding / decoding, modulation / demodulation, and multiplexing / demultiplexing, and performs various types of signal processing at layers such as L1, Media Access Control (MAC), Radio Link Control (RLC), and Packet Data Convergence Protocol (PDCP). Instead of controller 1821, the BB processor 1826 may have some or all of the above-described logical functions. The BB processor 1826 may be a memory storing communication control programs, or a module including a processor and associated circuitry configured to execute programs. Updates can change the functionality of the BB processor 1826. The module may be a card or blade inserted into a slot in base station equipment 1820. Alternatively, the module may be a chip mounted on a card or blade. Meanwhile, the RF circuit 1827 may include, for example, a mixer, a filter, and an amplifier, and transmits and receives wireless signals via the antenna 1810.

[0229] like Figure 15 As shown, the wireless communication interface 1825 may include multiple BB processors 1826. For example, the multiple BB processors 1826 may be compatible with multiple frequency bands used by the eNB 1800. Figure 15 As shown, the wireless communication interface 1825 may include multiple RF circuits 1827. For example, the multiple RF circuits 1827 may be compatible with multiple antenna elements. Although Figure 15 An example is shown in which the wireless communication interface 1825 includes multiple BB processors 1826 and multiple RF circuits 1827, but the wireless communication interface 1825 may also include a single BB processor 1826 or a single RF circuit 1827.

[0230] exist Figure 15 In the eNB 1800 shown, previously referred to Figure 3 , Figure 4 , Figure 8 The transmitting units 310, 410, and 810 and receiving units 320, 420, and 820 in the described electronic devices 300, 400, and 800 can be implemented under the control of the controller 1821 via the wireless communication interface 1825. At least some of the functions of the optional channel detection units 330, 430, and 830 in the electronic devices 300, 400, and 800 can be implemented by the controller 1821 controlling the relevant units of the eNB 1800 for related processing, which will not be elaborated here.

[0231] (Second application example)

[0232] Figure 16 This is a block diagram illustrating a second example of a schematic configuration of an eNB to which the technologies of this disclosure can be applied. The eNB 1930 includes one or more antennas 1940, a base station device 1950, and an RRH 1960. The RRH 1960 and each antenna 1940 can be connected to each other via RF cables. The base station device 1950 and the RRH 1960 can be connected to each other via high-speed lines such as fiber optic cables.

[0233] Each of the antennas 1940 includes one or more antenna elements (such as multiple antenna elements included in a MIMO antenna) and is used by the RRH 1960 to transmit and receive wireless signals. Figure 16 As shown, the eNB 1930 may include multiple antennas 1940. For example, the multiple antennas 1940 may be compatible with multiple frequency bands used by the eNB 1930. Although Figure 16 An example is shown in which the eNB 1930 includes multiple antennas 1940, but the eNB 1930 may also include a single antenna 1940.

[0234] Base station equipment 1950 includes a controller 1951, a memory 1952, a network interface 1953, a wireless communication interface 1955, and a connection interface 1957. The controller 1951, memory 1952, and network interface 1953 are consistent with reference to... Figure 16 The controller 1821, memory 1822, and network interface 1823 described are identical. Network interface 1953 is a communication interface used to connect base station equipment 1950 to core network 1954.

[0235] Wireless communication interface 1955 supports any cellular communication scheme (such as LTE and LTE-Advanced) and provides wireless communication to terminals located in the sector corresponding to RRH 1960 via RRH 1960 and antenna 1940. Wireless communication interface 1955 may typically include, for example, a BB processor 1956. In addition to the BB processor 1956 being connected to the RF circuitry 1964 of RRH 1960 via connection interface 1957, the BB processor 1956 is connected to the reference... Figure 15 The described BB processor 1826 is the same. Figure 16 As shown, the wireless communication interface 1955 may include multiple BB processors 1956. For example, the multiple BB processors 1956 may be compatible with multiple frequency bands used by the eNB 1930. Although Figure 16 An example is shown in which the wireless communication interface 1955 includes multiple BB processors 1956, but the wireless communication interface 1955 may also include a single BB processor 1956.

[0236] Connection interface 1957 is an interface for connecting base station equipment 1950 (wireless communication interface 1955) to RRH1960. Connection interface 1957 can also be a communication module for communication in the aforementioned high-speed line connecting base station equipment 1950 (wireless communication interface 1955) to RRH 1960.

[0237] RRH 1960 includes a connection interface 1961 and a wireless communication interface 1963.

[0238] Connection interface 1961 is an interface for connecting RRH 1960 (wireless communication interface 1963) to base station equipment 1950. Connection interface 1961 can also be a communication module for communication in the aforementioned high-speed line.

[0239] Wireless communication interface 1963 transmits and receives wireless signals via antenna 1940. Wireless communication interface 1963 typically includes, for example, RF circuitry 1964. RF circuitry 1964 may include, for example, a mixer, filter, and amplifier, and transmits and receives wireless signals via antenna 1940. Figure 16 As shown, the wireless communication interface 1963 may include multiple RF circuits 1964. For example, the multiple RF circuits 1964 may support multiple antenna elements. Although Figure 16 An example is shown in which the wireless communication interface 1963 includes multiple RF circuits 1964, but the wireless communication interface 1963 may also include a single RF circuit 1964.

[0240] exist Figure 16 In the eNB 1930 shown, previously referenced Figure 3 , Figure 4 , Figure 8 The transmitting units 310, 410, and 810 and receiving units 320, 420, and 820 in the described electronic devices 300, 400, and 800 can be implemented under the control of the controller 1951 via the wireless communication interface 1963. At least a portion of the functions of the optional channel detection units 330, 430, and 830 in the electronic devices 300, 400, and 800 can be implemented by the controller 1951 controlling the relevant units of the eNB 1930 for related processing, which will not be elaborated here.

[0241] [Application examples related to user equipment]

[0242] (First application example)

[0243] Figure 17This is a block diagram illustrating an example of a schematic configuration of a smartphone 2000 to which the technologies of this disclosure can be applied. The smartphone 2000 includes a processor 2001, a memory 2002, a storage device 2003, an external connection interface 2004, a camera device 2006, a sensor 2007, a microphone 2008, an input device 2009, a display device 2010, a speaker 2011, a wireless communication interface 2012, one or more antenna switches 2015, one or more antennas 2016, a bus 2017, a battery 2018, and an auxiliary controller 2019.

[0244] The processor 2001 can be, for example, a CPU or a system-on-a-chip (SoC), and controls the application layer and other functions of the smartphone 2000. The memory 2002 includes RAM and ROM, and stores data and programs executed by the processor 2001. The storage device 2003 can include storage media such as semiconductor memory and hard disks. The external connectivity interface 2004 is an interface for connecting external devices (such as memory cards and Universal Serial Bus (USB) devices) to the smartphone 2000.

[0245] The camera device 2006 includes an image sensor (such as a charge-coupled device (CCD) and complementary metal-oxide-semiconductor (CMOS)) and generates captured images. The sensor 2007 may include a set of sensors, such as a measurement sensor, a gyroscope sensor, a geomagnetic sensor, and an accelerometer. The microphone 2008 converts sound input to the smartphone 2000 into an audio signal. The input device 2009 includes, for example, a touch sensor, keypad, keyboard, buttons, or switches configured to detect touches on the screen of the display device 2010 and receives operations or information input from the user. The display device 2010 includes a screen (such as a liquid crystal display (LCD) and an organic light-emitting diode (OLED) display) and displays the output image from the smartphone 2000. The speaker 2011 converts the audio signal output from the smartphone 2000 into sound.

[0246] The wireless communication interface 2012 supports any cellular communication scheme (such as LTE and LTE-Advanced) and performs wireless communication. The wireless communication interface 2012 typically includes, for example, a BB processor 2013 and RF circuitry 2014. The BB processor 2013 can perform, for example, encoding / decoding, modulation / demodulation, and multiplexing / demultiplexing, and performs various types of signal processing for wireless communication. Meanwhile, the RF circuitry 2014 can include, for example, mixers, filters, and amplifiers, and transmits and receives wireless signals via an antenna 2016. The wireless communication interface 2012 can be a single chip module on which the BB processor 2013 and RF circuitry 2014 are integrated. Figure 17As shown, the wireless communication interface 2012 may include multiple BB processors 2013 and multiple RF circuits 2014. Although Figure 17 An example is shown in which the wireless communication interface 2012 includes multiple BB processors 2013 and multiple RF circuits 2014, but the wireless communication interface 2012 may also include a single BB processor 2013 or a single RF circuit 2014.

[0247] In addition to cellular communication schemes, the wireless communication interface 2012 can support other types of wireless communication schemes, such as short-range wireless communication schemes, near-field communication schemes, and wireless local area network (LAN) schemes. In this case, the wireless communication interface 2012 may include a BB processor 2013 and RF circuitry 2014 for each wireless communication scheme.

[0248] Each of the antenna switches 2015 switches the connection destination of antenna 916 among multiple circuits (e.g., circuits for different wireless communication schemes) included in the wireless communication interface 2012.

[0249] Each of the antennas 2016 includes one or more antenna elements (such as multiple antenna elements included in a MIMO antenna) and is used by the wireless communication interface 2012 to transmit and receive wireless signals. Figure 17 As shown, the smartphone 2000 may include multiple antennas 2016. Although Figure 17 An example is shown in which the smartphone 2000 includes multiple antennas 2016, but the smartphone 2000 may also include a single antenna 2016.

[0250] Furthermore, the smartphone 2000 may include an antenna 2016 for each wireless communication scheme. In this case, the antenna switch 2015 can be omitted from the configuration of the smartphone 2000.

[0251] Bus 2017 connects processor 2001, memory 2002, storage device 2003, external connection interface 2004, camera device 2006, sensor 2007, microphone 2008, input device 2009, display device 2010, speaker 2011, wireless communication interface 2012, and auxiliary controller 2019 to each other. Battery 2018 supplies power to... Figure 17 The various blocks of the smartphone 2000 shown are powered, and the feeders are partially shown as dashed lines in the diagram. The auxiliary controller 2019 operates the minimum necessary functions of the smartphone 2000, for example, in sleep mode.

[0252] exist Figure 17 The smartphone 2000 shown is based on the previous reference Figure 2 , Figure 6The transmitting units 110 and 610 and receiving units 120 and 620 in the described electronic devices 100 and 600 can be implemented under the control of the processor 2001 or the auxiliary controller 2019 via the wireless communication interface 2012. At least some of the functions of the optional channel detection units 130 and 630 in the electronic devices 100 and 600 can be implemented by the processor 2001 or the auxiliary controller 2019 controlling the relevant units of the smartphone 2000 to perform related processing, which will not be described in detail here.

[0253] (Second application example)

[0254] Figure 18 This is a block diagram illustrating an example of a schematic configuration of a car navigation device 2120 to which the technologies of this disclosure can be applied. The car navigation device 2120 includes a processor 2121, a memory 2122, a Global Positioning System (GPS) module 2124, a sensor 2125, a data interface 2126, a content player 2127, a storage medium interface 2128, an input device 2129, a display device 2130, a speaker 2131, a wireless communication interface 2133, one or more antenna switches 2136, one or more antennas 2137, and a battery 2138.

[0255] The processor 2121 can be, for example, a CPU or a SoC, and controls the navigation function and other functions of the car navigation device 2120. The memory 2122 includes RAM and ROM, and stores data and programs executed by the processor 2121.

[0256] GPS module 2124 uses GPS signals received from GPS satellites to measure the location (such as latitude, longitude, and altitude) of car navigation device 2120. Sensor 2125 may include a set of sensors, such as a gyroscope sensor, a geomagnetic sensor, and an air pressure sensor. Data interface 2126 is connected to, for example, an in-vehicle network 2141 via a terminal not shown, and acquires data generated by the vehicle (such as vehicle speed data).

[0257] Content player 2127 reproduces content stored on storage media (such as CDs and DVDs), which is inserted into storage media interface 2128. Input device 2129 includes, for example, a touch sensor, button, or switch configured to detect touch on the screen of display device 2130, and receives operations or information input from the user. Display device 2130 includes a screen such as an LCD or OLED display and displays images or reproduced content for navigation functions. Speaker 2131 outputs sound for navigation functions or reproduced content.

[0258] The wireless communication interface 2133 supports any cellular communication scheme (such as LTE and LTE-Advanced) and performs wireless communication. The wireless communication interface 2133 typically includes, for example, a BB processor 2134 and RF circuitry 2135. The BB processor 2134 can perform, for example, encoding / decoding, modulation / demodulation, and multiplexing / demultiplexing, and performs various types of signal processing for wireless communication. Meanwhile, the RF circuitry 2135 can include, for example, mixers, filters, and amplifiers, and transmits and receives wireless signals via antenna 2137. The wireless communication interface 2133 can also be a chip module on which the BB processor 2134 and RF circuitry 2135 are integrated. Figure 18 As shown, the wireless communication interface 2133 may include multiple BB processors 2134 and multiple RF circuits 2135. Although Figure 18 An example is shown in which the wireless communication interface 2133 includes multiple BB processors 2134 and multiple RF circuits 2135, but the wireless communication interface 2133 may also include a single BB processor 2134 or a single RF circuit 2135.

[0259] In addition to cellular communication schemes, wireless communication interface 2133 can support other types of wireless communication schemes, such as short-range wireless communication schemes, near-field communication schemes, and wireless LAN schemes. In this case, for each wireless communication scheme, wireless communication interface 2133 may include BB processor 2134 and RF circuitry 2135.

[0260] Each of the antenna switches 2136 switches the connection destination of the antenna 2137 among multiple circuits (such as circuits for different wireless communication schemes) included in the wireless communication interface 2133.

[0261] Each of the antennas 2137 includes one or more antenna elements (such as multiple antenna elements included in a MIMO antenna) and is used for transmitting and receiving wireless signals through the wireless communication interface 2133. Figure 18 As shown, the car navigation device 2120 may include multiple antennas 2137. Although Figure 18 An example is shown in which the car navigation device 2120 includes multiple antennas 2137, but the car navigation device 2120 may also include a single antenna 2137.

[0262] Furthermore, the car navigation device 2120 may include an antenna 2137 for each wireless communication scheme. In this case, the antenna switch 2136 can be omitted from the configuration of the car navigation device 2120.

[0263] Battery 2138 via feeder to Figure 18The various blocks of the car navigation device 2120 shown are powered, and the feeders are partially shown as dashed lines in the figure. Battery 2138 accumulates the power supplied from the vehicle.

[0264] exist Figure 18 The car navigation device 2120 shown is previously referred to Figure 2 , Figure 6 The transmitting units 110 and 610 and the receiving units 120 and 620 in the described electronic devices 100 and 600 can be implemented under the control of the processor 2121 via the wireless communication interface 2133. The optional channel detection units 130 and 630 in the electronic devices 100 and 600 can be implemented by the processor 2121 to control the relevant units of the car navigation device 2120 to perform relevant processing, which will not be described in detail here.

[0265] The technology disclosed herein can also be implemented as an in-vehicle system (or vehicle) 2140 including one or more of the following blocks: a car navigation device 2120, an in-vehicle network 2141, and a vehicle module 2142. The vehicle module 2142 generates vehicle data (such as vehicle speed, engine speed, and fault information) and outputs the generated data to the in-vehicle network 2141.

[0266] Preferred embodiments of the present disclosure have been described above with reference to the accompanying drawings, but the present disclosure is by no means limited to the examples described above. Various changes and modifications can be made by those skilled in the art within the scope of the appended claims, and it should be understood that such changes and modifications naturally fall within the technical scope of the present disclosure.

[0267] For example, the units shown in the dashed boxes in the functional block diagrams shown in the attached figures represent that the functional unit is optional in the corresponding device, and the optional functional units can be combined in an appropriate manner to achieve the desired function.

[0268] For example, the multiple functions included in one unit in the above embodiments can be implemented by separate devices. Alternatively, the multiple functions implemented by multiple units in the above embodiments can be implemented by separate devices respectively. In addition, one of the above functions can be implemented by multiple units. Needless to say, such a configuration is included within the scope of the present disclosure.

[0269] In this specification, the steps described in the flowchart include not only processes executed sequentially in the stated order, but also processes executed in parallel or individually, rather than necessarily sequentially. Furthermore, even within the steps of sequential processing, needless to say, the order can be appropriately altered.

[0270] The basic principles of this disclosure have been described above with reference to specific embodiments. However, it should be noted that those skilled in the art will understand that all or any step or component of the methods and apparatus of this disclosure can be implemented in any computing device (including processors, storage media, etc.) or network of computing devices, in the form of hardware, firmware, software or a combination thereof. This is something that those skilled in the art can achieve by using their basic circuit design knowledge or basic programming skills after reading the description of this disclosure.

[0271] Furthermore, this disclosure also proposes a program product storing machine-readable instruction code. When the instruction code is read and executed by a machine, the method described above according to embodiments of this disclosure can be performed.

[0272] Accordingly, the storage medium used to carry the program product storing machine-readable instruction code is also included in this disclosure. The storage medium includes, but is not limited to, floppy disks, optical disks, magneto-optical disks, memory cards, memory sticks, etc.

[0273] When this disclosure is implemented through software or firmware, programs constituting the software are installed from a storage medium or network onto a computer with a dedicated hardware architecture, and the computer, when various programs are installed, is able to perform various functions, etc.

[0274] Preferred embodiments of the present disclosure have been described above with reference to the accompanying drawings, but the present disclosure is by no means limited to the examples described above. Various changes and modifications can be made by those skilled in the art within the scope of the appended claims, and it should be understood that such changes and modifications naturally fall within the technical scope of the present disclosure.

[0275] For example, the units shown in the dashed boxes in the functional block diagrams shown in the attached figures represent that the functional unit is optional in the corresponding device, and the optional functional units can be combined in an appropriate manner to achieve the desired function.

[0276] For example, the multiple functions included in one unit in the above embodiments can be implemented by separate devices. Alternatively, the multiple functions implemented by multiple units in the above embodiments can be implemented by separate devices respectively. In addition, one of the above functions can be implemented by multiple units. Needless to say, such a configuration is included within the scope of the present disclosure.

[0277] In this specification, the steps described in the flowchart include not only processes executed sequentially in the stated order, but also processes executed in parallel or individually, rather than necessarily sequentially. Furthermore, even within the steps of sequential processing, needless to say, the order can be appropriately altered.

[0278] In addition, this disclosure may have the configuration described below.

[0279] (1) An electronic device, comprising:

[0280] The processing circuit is configured as follows:

[0281] During the channel occupancy period after the electronic device successfully accesses the unlicensed frequency band, a first uplink data transmission is performed to the first transmission point; and

[0282] During the remaining time after the first uplink data transmission is completed within the channel occupancy time, a second uplink data transmission is performed to the second transmission point based on an acknowledgment message from a second transmission point near the first transmission point.

[0283] The confirmation message is sent by the second transmission point to the electronic device in response to an additional transmission request sent by the first transmission point to the second transmission point after the first uplink data transmission is completed.

[0284] (2) The electronic device as described in (1) above, wherein the processing circuit is further configured to:

[0285] During the channel occupancy period, a first transmission request is sent to the first transmission point, the first transmission request including information related to the expiration time of the channel occupancy period.

[0286] (3) The electronic device as described in (2) above, wherein the processing circuit is further configured to:

[0287] Uplink data is sent to the first transmission point along with the first transmission request.

[0288] (4) The electronic device as described in (2) above, wherein the processing circuit is further configured to:

[0289] In response to an acknowledgment message from the first transmission point, the first uplink data transmission is performed. This acknowledgment message is sent to the electronic device by the first transmission point based on a first channel detection performed in response to the first transmission request.

[0290] (5) The electronic device as described in (4) above, wherein the first channel detection is complex channel detection, and the processing circuit is further configured to receive downlink data from the first transmission point along with an acknowledgment message.

[0291] (6) The electronic device as described in (1) above, wherein the acknowledgment message from the second transmission point is sent to the electronic device by the second transmission point based on a second channel detection performed in response to the additional transmission request.

[0292] (7) The electronic device as described in (6) above, wherein the second channel detection is complex channel detection, and the processing circuit is further configured to receive downlink data from the second transmission point along with an acknowledgment message.

[0293] (8) The electronic device as described in (1) above, wherein the first transmission point and the second transmission point simultaneously provide services to the electronic device within the same cell.

[0294] (9) The electronic device as described in (1) above, wherein the processing circuit is further configured to:

[0295] During the remaining time after the second uplink data transmission is completed within the channel occupancy time, a third uplink data transmission is performed to the third transmission point based on an acknowledgment message from a third transmission point near the second transmission point.

[0296] The confirmation message is sent by the third transmission point to the electronic device in response to an additional transmission request sent by the second transmission point to the third transmission point after the second uplink data transmission is completed.

[0297] (10) An electronic device comprising:

[0298] The processing circuit is configured as follows:

[0299] During the channel occupancy time after the user equipment successfully accesses the unlicensed frequency band, the first uplink data transmission from the user equipment is received; and

[0300] During the remaining time after the first uplink data transmission is completed within the channel occupancy period, an additional transmission request for a second uplink data transmission of the user equipment is sent to another electronic device near the electronic device.

[0301] (11) The electronic device as described in (10) above, wherein the processing circuit is further configured to:

[0302] During the channel occupancy period, a first transmission request is received from the user equipment, the first transmission request including information related to the expiration time of the channel occupancy period.

[0303] (12) The electronic device as described in (11) above, wherein the processing circuit is further configured to:

[0304] Receive uplink data from the user equipment that was sent along with the first transmission request.

[0305] (13) The electronic device as described in (11) above, wherein the processing circuit is further configured to:

[0306] In response to the first transmission request, a channel detection is performed, and an acknowledgment message is sent to the user equipment based on the result of the channel detection.

[0307] (14) The electronic device as described in (13) above, wherein the channel detection is simple channel detection.

[0308] (15) The electronic device as described in (14) above, wherein the channel detection is complex channel detection, and the processing circuit is further configured to send downlink data to the user equipment together with the acknowledgment message.

[0309] (16) The electronic device as described in (11) above, wherein the additional transmission request includes information related to the expiration time of the channel occupancy time.

[0310] (17) The electronic device as described in (10) above, wherein the electronic device and the other electronic device simultaneously provide services to the user equipment within the same cell.

[0311] (18) The electronic device as described in (17) above, wherein the processing circuit is further configured to send the additional transmission request to the other electronic device via fiber optic backhaul.

[0312] (19) An electronic device comprising:

[0313] The processing circuit is configured as follows:

[0314] During the remaining time of channel occupancy after a user equipment successfully accesses an unlicensed frequency band, an additional transmission request for the user equipment is received from another electronic device, wherein the additional transmission request is sent by the other electronic device after completing the first uplink data transmission from the user equipment during the channel occupancy time;

[0315] In response to the additional transmission request, an acknowledgment message is sent to the user equipment; and

[0316] During the remaining time, the user equipment receives a second uplink data transmission based on the confirmation message.

[0317] (20) The electronic device as described in (19) above, wherein the additional transmission request includes information related to the expiration time of the channel occupancy time.

[0318] (21) The electronic device as described in (19) above, wherein the processing circuit is further configured to:

[0319] In response to the additional transmission request, a channel detection is performed, and the acknowledgment information is sent based on the result of the channel detection.

[0320] (22) The electronic device as described in (21) above, wherein the channel detection is simple channel detection.

[0321] (23) The electronic device as described in (21) above, wherein the channel detection is complex channel detection, and the processing circuit is further configured to send downlink data to the user equipment together with the acknowledgment message.

[0322] (24) The electronic device as described in (19) above, wherein the electronic device and the other electronic device simultaneously provide services to the user equipment within the same cell.

[0323] (25) The electronic device as described in (24) above, wherein the processing circuit is further configured to:

[0324] The additional transmission request is received from the other electronic device via fiber optic backhaul.

[0325] (26) An electronic device comprising:

[0326] The processing circuit is configured as follows:

[0327] Receive transmission requests from the first transmission point and the second transmission point;

[0328] During the channel occupancy period following successful access to the unlicensed frequency band in response to the transmission request, acknowledgment messages are simultaneously sent to both the first transmission point and the second transmission point; and

[0329] During the channel occupancy time, downlink data from both the first transmission point and the second transmission point are received simultaneously.

[0330] (27) The electronic device as described in (26) above, wherein the processing circuit is further configured to:

[0331] In response to the transmission request, channel detection is performed, and access to the unlicensed frequency band is obtained based on the results of the channel detection.

[0332] (28) The electronic device as described in (26) above, wherein the confirmation message includes information related to the expiration time of the channel occupancy time.

[0333] (29) The electronic device as described in (26) above, wherein the processing circuit is further configured to:

[0334] Uplink data is simultaneously sent to the first transmission point and the second transmission point along with the confirmation message.

[0335] (30) The electronic device as described in (26) above, wherein the first transmission point and the second transmission point provide multi-point cooperative transmission-joint transmission for the user equipment.

[0336] (31) An electronic device, comprising:

[0337] The processing circuit is configured as follows:

[0338] Send a transmission request to the user equipment;

[0339] During the channel occupancy period following the successful access to the unlicensed frequency band by the user equipment in response to the transmission request, an acknowledgment message is received from the user equipment; and

[0340] During the channel occupancy period, in response to the acknowledgment message, downlink data is sent to the user equipment.

[0341] The processing circuits of the electronic device and the other electronic devices are configured to simultaneously perform the processing of sending transmission requests, receiving confirmation messages, and sending downlink data.

[0342] (32) The electronic device as described in (31) above, wherein the processing circuit is further configured to:

[0343] Perform a first channel detection and send the transmission request based on the result of the first channel detection.

[0344] (33) The electronic device as described in (32) above, wherein the processing circuit is further configured to:

[0345] The transmission request is sent to the user equipment only if the results of the first channel detection of both the electronic device and another electronic device indicate that an idle channel exists.

[0346] (34) The electronic device as described in (31) above, wherein the confirmation message includes information related to the expiration time of the channel occupancy time.

[0347] (35) The electronic device as described in (31) above, wherein the processing circuit is further configured to receive uplink data from the user equipment sent together with the confirmation message.

[0348] (36) The electronic device as described in (31) above, wherein the processing circuit is further configured to:

[0349] In response to the confirmation message, a second channel detection is performed, and based on the result of the second channel detection, downlink data is sent to the user equipment.

[0350] (37) The electronic device as described in (36) above, wherein the processing circuit is further configured to:

[0351] Downlink data is sent to the user equipment only when the results of the second channel detection of the electronic device and another electronic device both indicate that an idle channel exists.

[0352] (38) The electronic device as described in (31) above, wherein the electronic device and the other electronic device provide multi-point cooperative transmission-joint transmission for the user equipment.

[0353] (39) A wireless communication method in an electronic device, comprising:

[0354] During the channel occupancy period after the electronic device successfully accesses the unlicensed frequency band, a first uplink data transmission is performed to the first transmission point; and

[0355] During the remaining time after the first uplink data transmission is completed within the channel occupancy time, a second uplink data transmission is performed to the second transmission point based on an acknowledgment message from a second transmission point near the first transmission point.

[0356] The confirmation message is sent by the second transmission point to the electronic device in response to an additional transmission request sent by the first transmission point to the second transmission point after the first uplink data transmission is completed.

[0357] (40) A wireless communication method in an electronic device, comprising:

[0358] During the channel occupancy time after the user equipment successfully accesses the unlicensed frequency band, the first uplink data transmission from the user equipment is received; and

[0359] During the remaining time after the first uplink data transmission is completed within the channel occupancy period, an additional transmission request for a second uplink data transmission of the user equipment is sent to another electronic device near the electronic device.

[0360] (41) A wireless communication method in an electronic device, comprising:

[0361] During the remaining time of channel occupancy after a user equipment successfully accesses an unlicensed frequency band, an additional transmission request for the user equipment is received from another electronic device, wherein the additional transmission request is sent by the other electronic device after completing the first uplink data transmission from the user equipment during the channel occupancy time;

[0362] In response to the additional transmission request, an acknowledgment message is sent to the user equipment; and

[0363] During the remaining time, the user equipment receives a second uplink data transmission based on the confirmation message.

[0364] (42) A wireless communication method in an electronic device, comprising:

[0365] Receive transmission requests from the first transmission point and the second transmission point;

[0366] During the channel occupancy period following successful access to the unlicensed frequency band in response to the transmission request, acknowledgment messages are simultaneously sent to both the first transmission point and the second transmission point; and

[0367] During the channel occupancy time, downlink data from both the first transmission point and the second transmission point are received simultaneously.

[0368] (43) A wireless communication method in an electronic device, comprising:

[0369] Send a transmission request to the user equipment;

[0370] During the channel occupancy period following the successful access to the unlicensed frequency band by the user equipment in response to the transmission request, an acknowledgment message is received from the user equipment; and

[0371] During the channel occupancy period, in response to the acknowledgment message, downlink data is sent to the user equipment.

[0372] The electronic device and another electronic device simultaneously perform the processes of sending transmission requests, receiving confirmation messages, and sending downlink data.

[0373] (44) A non-transitory computer-readable storage medium storing a program, which, when executed by a processor, causes the processor to perform the method according to any one of (39) to (43) above.

[0374] While embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings, it should be understood that the embodiments described above are merely illustrative and do not constitute a limitation thereof. Those skilled in the art can make various modifications and alterations to the above embodiments without departing from the spirit and scope of the present disclosure. Therefore, the scope of the present disclosure is defined only by the appended claims and their equivalents.

Claims

1. An electronic device, comprising: The processing circuit is configured as follows: During the channel occupancy time after the electronic device successfully accesses the unlicensed frequency band, it performs the first uplink data transmission to the first transmission point. as well as During the remaining time after the first uplink data transmission is completed within the channel occupancy time, a second uplink data transmission is performed to the second transmission point based on an acknowledgment message from a second transmission point near the first transmission point. The confirmation message is sent by the second transmission point to the electronic device in response to an additional transmission request sent by the first transmission point to the second transmission point after the first uplink data transmission is completed.

2. The electronic device as claimed in claim 1, wherein, The processing circuit is further configured to: During the channel occupancy period, a first transmission request is sent to the first transmission point, the first transmission request including information related to the expiration time of the channel occupancy period.

3. The electronic device as claimed in claim 2, wherein, The processing circuit is further configured to: Uplink data is sent to the first transmission point along with the first transmission request.

4. The electronic device as claimed in claim 2, wherein, The processing circuit is further configured to: In response to an acknowledgment message from the first transmission point, the first uplink data transmission is performed. This acknowledgment message is sent to the electronic device by the first transmission point based on a first channel detection performed in response to the first transmission request.

5. The electronic device as claimed in claim 4, wherein, The first channel detection is complex channel detection, and the processing circuit is further configured to receive downlink data sent from the first transmission point along with an acknowledgment message.

6. The electronic device as claimed in claim 1, wherein, The acknowledgment message from the second transmission point is sent to the electronic device by the second transmission point based on a second channel detection performed in response to the additional transmission request.

7. The electronic device as claimed in claim 6, wherein, The second channel detection is complex channel detection, and the processing circuit is further configured to receive downlink data sent from the second transmission point along with an acknowledgment message.

8. The electronic device as claimed in claim 1, wherein, The first transmission point and the second transmission point provide services to the electronic device simultaneously within the same cell.

9. The electronic device as claimed in claim 1, wherein, The processing circuit is further configured to: During the remaining time after the second uplink data transmission is completed within the channel occupancy time, a third uplink data transmission is performed to the third transmission point based on an acknowledgment message from a third transmission point near the second transmission point. The confirmation message is sent by the third transmission point to the electronic device in response to an additional transmission request sent by the second transmission point to the third transmission point after the second uplink data transmission is completed.

10. An electronic device, comprising: The processing circuit is configured as follows: During the channel occupancy time after the user equipment successfully accesses the unlicensed frequency band, the first uplink data transmission from the user equipment is received. as well as During the remaining time after the first uplink data transmission is completed within the channel occupancy period, an additional transmission request for a second uplink data transmission of the user equipment is sent to another electronic device near the electronic device.

11. The electronic device of claim 10, wherein, The processing circuit is further configured to: During the channel occupancy period, a first transmission request is received from the user equipment, the first transmission request including information related to the expiration time of the channel occupancy period.

12. The electronic device of claim 11, wherein, The processing circuit is further configured to: Receive uplink data from the user equipment that was sent along with the first transmission request.

13. The electronic device of claim 11, wherein, The processing circuit is further configured to: In response to the first transmission request, a channel detection is performed, and an acknowledgment message is sent to the user equipment based on the result of the channel detection.

14. The electronic device of claim 13, wherein, The channel detection described is simple channel detection.

15. The electronic device of claim 14, wherein, The channel detection is complex channel detection, and the processing circuit is further configured to send downlink data to the user equipment along with the acknowledgment message.

16. The electronic device of claim 11, wherein the additional transmission request includes information related to the expiration time of the channel occupancy time.

17. The electronic device of claim 10, wherein, The electronic device and the other electronic device simultaneously provide services to the user equipment within the same cell.

18. The electronic device of claim 17, wherein, The processing circuit is also configured to send the additional transmission request to the other electronic device via fiber optic backhaul.

19. An electronic device comprising: The processing circuit is configured as follows: During the remaining time of channel occupancy after a user equipment successfully accesses an unlicensed frequency band, an additional transmission request for the user equipment is received from another electronic device, wherein the additional transmission request is sent by the other electronic device after completing the first uplink data transmission from the user equipment during the channel occupancy time; In response to the additional transmission request, an acknowledgment message is sent to the user equipment; and During the remaining time, the user equipment receives a second uplink data transmission based on the confirmation message.

20. The electronic device of claim 19, wherein the additional transmission request includes information related to the expiration time of the channel occupancy time.

21. The electronic device of claim 19, wherein, The processing circuit is further configured to: In response to the additional transmission request, a channel detection is performed, and the acknowledgment message is sent based on the result of the channel detection.

22. The electronic device of claim 21, wherein, The channel detection described is simple channel detection.

23. The electronic device of claim 21, wherein, The channel detection is complex channel detection, and the processing circuit is further configured to send downlink data to the user equipment along with the acknowledgment message.

24. The electronic device of claim 19, wherein, The electronic device and the other electronic device simultaneously provide services to the user equipment within the same cell.

25. The electronic device of claim 24, wherein, The processing circuit is further configured to: The additional transmission request is received from the other electronic device via fiber optic backhaul.

26. A wireless communication method in an electronic device, comprising: During the channel occupancy time after the electronic device successfully accesses the unlicensed frequency band, it performs the first uplink data transmission to the first transmission point. as well as During the remaining time after the first uplink data transmission is completed within the channel occupancy time, a second uplink data transmission is performed to the second transmission point based on an acknowledgment message from a second transmission point near the first transmission point. The confirmation message is sent by the second transmission point to the electronic device in response to an additional transmission request sent by the first transmission point to the second transmission point after the first uplink data transmission is completed.

27. A wireless communication method in an electronic device, comprising: During the channel occupancy time after the user equipment successfully accesses the unlicensed frequency band, the first uplink data transmission from the user equipment is received. as well as During the remaining time after the first uplink data transmission is completed within the channel occupancy period, an additional transmission request for a second uplink data transmission of the user equipment is sent to another electronic device near the electronic device.

28. A wireless communication method in an electronic device, comprising: During the remaining time of channel occupancy after a user equipment successfully accesses an unlicensed frequency band, an additional transmission request for the user equipment is received from another electronic device, wherein the additional transmission request is sent by the other electronic device after completing the first uplink data transmission from the user equipment during the channel occupancy time; In response to the additional transmission request, an acknowledgment message is sent to the user equipment; and During the remaining time, the user equipment receives a second uplink data transmission based on the confirmation message.

29. A non-transitory computer-readable storage medium storing a program, which, when executed by a processor, causes the processor to perform the method according to any one of claims 26 to 28.

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