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

Abstract

The present application relates to an electronic device, a wireless communication method, and a computer-readable storage medium. The electronic device according to the present application includes a processing circuit configured to: receive information related to a timing advance group TAG from a network-side device serving the electronic device; and turn on or off the HARQ process between the electronic device and all cells in the TAG according to the information related to the TAG. Using the electronic device, wireless communication method, and computer-readable storage medium according to the present application, the HARQ process can be reasonably turned on / off in units of TAGs.

Description

[0001] This application claims priority to a Chinese patent application filed with the China Patent Office on August 16, 2019, with application number 201910758886.9 and invention name “Electronic device, wireless communication method and computer-readable storage medium”, the entire contents of which are incorporated by reference in this application. Technical Field

[0002] Embodiments of the present disclosure generally relate to the field of wireless communications, and specifically relate to electronic devices, wireless communication methods, and computer-readable storage media. More specifically, the present disclosure relates to an electronic device as a network-side device in a wireless communication system, an electronic device as a user device in a wireless communication system, a wireless communication method performed by a network-side device in a wireless communication system, a wireless communication method performed by a user device in a wireless communication system, and a computer-readable storage medium. Background Art

[0003] HARQ (Hybrid Automatic Repeat Request) technology is a technology that combines forward error correction coding technology with automatic repeat request technology. When the decoding is successful, the receiving end can send an ACK signal to the sending end; when the decoding fails, the receiving end can save the received data and send a NACK signal to the sending end to request the sending end to retransmit the data. The receiving end combines the retransmitted data with the previously received data and then decodes it. In this way, a certain diversity gain can be formed, the number of retransmissions can be reduced, and then the delay can be reduced.

[0004] In order to improve system efficiency, multiple HARQ processes can be defined in the communication system, and each HARQ process has a unique identifier. While waiting for feedback information from a certain HARQ process, other HARQ processes can be used to transmit data packets. The minimum RTT (Round Trip Time) of HARQ is the completion time of a data packet transmission process, including the entire process from the start of sending a data packet at the sender, the feedback of the ACK / NACK signal based on the result after the receiving end receives and processes it, and the determination of the next frame for retransmission or transmission of a new data packet after the sender demodulates and processes the ACK / NACK signal. Generally speaking, the number of HARQ processes can be determined based on RTT. However, since HARQ is a stop-and-wait protocol, it is very sensitive to time. When the RTT between the sender and the receiver is very large, the HARQ process cannot be increased indefinitely. At this time, although turning on HARQ can increase the reliability of the system, it may reduce the effectiveness of the system, thereby reducing the system performance.

[0005] Therefore, it is necessary to propose a technical solution to reasonably enable / disable the HARQ process. Summary of the invention

[0006] This section provides a general summary of the disclosure, and is not a comprehensive disclosure of its full scope or all of its features.

[0007] The object of the present disclosure is to provide an electronic device, a wireless communication method and a computer-readable storage medium to reasonably turn on / off the HARQ process.

[0008] According to one aspect of the present disclosure, an electronic device is provided, comprising a processing circuit, configured to: receive information related to a TAG (Timing Advance Group) from a network side device serving the electronic device; and turn on or off a HARQ process between the electronic device and all cells in the TAG according to the information related to the TAG.

[0009] According to another aspect of the present disclosure, an electronic device is provided, comprising a processing circuit configured to: generate information related to a timing advance group TAG of a user equipment served by the electronic device; and send the information to the user equipment to instruct the user equipment to turn on or off a HARQ process between the user equipment and all cells in the TAG.

[0010] According to another aspect of the present disclosure, a wireless communication method performed by an electronic device is provided, including: receiving information related to a timing advance group TAG from a network side device serving the electronic device; and turning on or off a HARQ process between the electronic device and all cells in the TAG according to the information related to the TAG.

[0011] According to another aspect of the present disclosure, a wireless communication method performed by an electronic device is provided, including: generating information related to a timing advance group TAG of a user equipment served by the electronic device; and sending the information to the user equipment to instruct the user equipment to turn on or off a HARQ process between the user equipment and all cells in the TAG.

[0012] According to another aspect of the present disclosure, a computer-readable storage medium is provided, comprising executable computer instructions, which, when executed by a computer, enable the computer to perform the wireless communication method according to the present disclosure.

[0013] Using the electronic device, wireless communication method and computer-readable storage medium according to the present disclosure, the electronic device can turn on or off the HARQ process between the electronic device and all cells in the TAG according to the information related to the TAG. In this way, the electronic device can turn on / off the HARQ process in units of TAGs, so that the turning on and off of the HARQ process can be more reasonable.

[0014] Further areas of applicability will become apparent from the description provided herein.The description and specific examples in this summary are intended for purposes of illustration only and are not intended to limit the scope of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present disclosure. In the drawings:

[0016] Figure 1 is a block diagram showing an example of a configuration of an electronic device according to an embodiment of the present disclosure;

[0017] Figure 2 is a signaling flow chart showing the activation / deactivation of the HARQ process according to an embodiment of the present disclosure;

[0018] Figure 3 is a signaling flow chart showing the activation / deactivation of the HARQ process according to an embodiment of the present disclosure;

[0019] Figure 4 is a signaling flow chart showing the activation / deactivation of the HARQ process according to an embodiment of the present disclosure;

[0020] Figure 5 is a signaling flow chart showing the activation / deactivation of the HARQ process according to an embodiment of the present disclosure;

[0021] Figure 6 is a signaling flow chart showing the activation / deactivation of the HARQ process according to an embodiment of the present disclosure;

[0022] Figure 7 is a signaling flow chart showing the activation / deactivation of the HARQ process according to an embodiment of the present disclosure;

[0023] Figure 8 is a block diagram showing an example of a configuration of an electronic device according to an embodiment of the present disclosure;

[0024] Fig. 9 is a flowchart illustrating a wireless communication method performed by an electronic device according to an embodiment of the present disclosure;

[0025] Fig.10is a flowchart illustrating a wireless communication method performed by an electronic device according to another embodiment of the present disclosure;

[0026] Fig.11 is a schematic diagram showing an application scenario according to an embodiment of the present disclosure;

[0027] Fig.12 is a block diagram showing a first example of a schematic configuration of an eNB (Evolved Node B);

[0028] Fig.13 is a block diagram showing a second example of a schematic configuration of an eNB;

[0029] Fig.14 is a block diagram showing an example of a schematic configuration of a smartphone; and

[0030] Fig.15 is a block diagram showing an example of a schematic configuration of a car navigation device.

[0031] Although the present disclosure is susceptible to various modifications and alternative forms, specific embodiments thereof have been shown as examples in the drawings and are described in detail herein. It should be understood, however, that the description of specific embodiments herein is not intended to limit the present disclosure to the specific forms disclosed, but rather, the present disclosure is intended to cover all modifications, equivalents, and alternatives that fall within the spirit and scope of the present disclosure. It should be noted that throughout the several drawings, corresponding reference numerals indicate corresponding parts. DETAILED DESCRIPTION

[0032] Examples of the present disclosure will now be described more fully with reference to the accompanying drawings.The following description is merely exemplary in nature and is not intended to limit the present disclosure, application, or uses.

[0033] Example embodiments are provided so that the disclosure will be exhaustive and its scope will be fully conveyed to those skilled in the art. Numerous specific details such as examples of specific components, devices and methods are set forth to provide a detailed understanding of the embodiments of the present disclosure. It will be apparent to those skilled in the art that the example embodiments may be implemented in many different forms without the use of specific details, none of which should be construed as limiting the scope of the present disclosure. In certain example embodiments, well-known processes, well-known structures and well-known techniques are not described in detail.

[0034] The description will be in the following order:

[0035] 1. Description of the problem;

[0036] 2. Configuration example of user equipment;

[0037] 3. Configuration examples of network-side devices;

[0038] 4. Method embodiments;

[0039] 5. Application examples.

[0040] <1. Description of the problem>

[0041] As mentioned above, the number of HARQ processes can be determined based on RTT. However, since HARQ is a stop-and-wait protocol, it is very sensitive to time. When the RTT between the sender and the receiver is very large, the number of HARQ processes cannot be increased indefinitely. At this time, although enabling HARQ can increase the reliability of the system, it may reduce the effectiveness of the system, thereby reducing system performance.

[0042] This problem is particularly evident in wireless communication systems including NTN (Non-terrestrial network). In NTN, the network side equipment can be located on the satellite equipment, while the user equipment is located on the ground, so the RTT between the user equipment and the network side equipment is very large. At this time, opening the HARQ process without restriction will greatly reduce the system performance.

[0043] The main function of the TA (Timing Advance) process is to ensure the uplink synchronization between the user equipment and the network side equipment, that is, to ensure that the signal sent by the user equipment can reach the network side equipment at the time specified by the network side equipment. Generally speaking, the greater the distance between the user equipment and the network side equipment, the greater the TA value, that is, the user equipment should initiate transmission earlier; the smaller the distance between the user equipment and the network side equipment, the smaller the TA value. In the case where the user equipment has one or more service cells, the one or more service cells of the user equipment are divided into multiple TAGs. For each service cell in a specific TAG, the TA value between the service cell and the user equipment is the same. For example, in the case where the user equipment has three service cells, assuming that cell 1 and cell 2 belong to TAG1, and cell 3 belongs to TAG2, the TA value between cell 1 and the user equipment is equal to the TA value between cell 2 and the user equipment.

[0044] It can be seen that the TA value can indirectly describe the RTT between the user equipment and the network side equipment. Therefore, the present disclosure hopes to propose an electronic device in a wireless communication system, a wireless communication method performed by an electronic device in a wireless communication system, and a computer-readable storage medium, so that the HARQ process can be turned on or off in units of TAG, thereby making the opening and closing process of the HARQ process more reasonable.

[0045] The wireless communication system according to the present disclosure may include NTN and / or TN (Terrestrial network). In the wireless communication system including NTN and TN, the user equipment may be connected to NTN and / or TN. The network side equipment managing the cells in NTN may be referred to as NTN BS (Base Station, BS), which may be located on the satellite equipment or the terrestrial equipment, while the network side equipment managing the cells in TN may be referred to as TN BS, which may be located on the terrestrial equipment.

[0046] The network side device according to the present disclosure may be any type of TRP (Transmit and Receive Port). The TRP may have sending and receiving functions, for example, it may receive information from a user device and a base station device, and it may also send information to a user device and a base station device. In addition, the network side device described in the present disclosure may also be a base station device, for example, it may be an eNB or a gNB (a base station in a fifth generation communication system).

[0047] The user equipment according to the present disclosure may be a mobile terminal (such as a smart phone, a tablet personal computer (PC), a notebook PC, a portable game terminal, a portable / dongle-type mobile router, and a digital camera) or a vehicle-mounted terminal (such as a car navigation device). The user equipment may also be implemented as a terminal that performs machine-to-machine (M2M) communication (also referred to as a machine type communication (MTC) terminal). In addition, the user equipment may be a wireless communication module (such as an integrated circuit module including a single chip) installed on each of the above-mentioned terminals.

[0048] <2. User Equipment Configuration Example>

[0049] Figure 1 1 is a block diagram showing an example of a configuration of an electronic device 100 according to an embodiment of the present disclosure. The electronic device 100 here can be used as a user equipment in a wireless communication system.

[0050] like Figure 1 As shown, the electronic device 100 may include a communication unit 110 and a determination unit 120 .

[0051] Here, each unit of the electronic device 100 may be included in a processing circuit. It should be noted that the electronic device 100 may include one processing circuit or multiple processing circuits. Further, the processing circuit may include various discrete functional units to perform various functions and / or operations. It should be noted that these functional units may be physical entities or logical entities, and units with different names may be implemented by the same physical entity.

[0052] According to an embodiment of the present disclosure, the electronic device 100 may receive information related to the TAG from a network-side device serving the electronic device through the communication unit 110 .

[0053] According to an embodiment of the present disclosure, the determination unit 120 may turn on or off the HARQ process between the electronic device 100 and all cells in the TAG according to the received information related to the TAG.

[0054] It can be seen that according to an embodiment of the present disclosure, the electronic device 100 can turn on or off the HARQ process between the electronic device 100 and all cells in the TAG according to the information related to the TAG. The HARQ process between the electronic device 100 and all cells in the TAG refers to all HARQ processes between the electronic device 100 and all cells in the TAG. In this way, the electronic device 100 can turn on / off the HARQ process in units of TAG. Further, the information related to the TAG may be user-specific (UE-Specific) information, that is, the information related to the TAG is information for the electronic device 100. In this way, the HARQ process of a specific user device can be turned on / off through information from a network side device. In summary, according to an embodiment of the present disclosure, the HARQ process of a specific user device can be turned on or off in units of TAG. Therefore, according to an embodiment of the present disclosure, the turning on and off of the HARQ process can be made more reasonable.

[0055] According to an embodiment of the present disclosure, the information related to the TAG may include a TAC (Timing Advance Command) related to the TAG.

[0056] Here, TAC can be a command for all cells in the TAG. TAC can indicate the identifier of the TAG, and this indication includes explicit indication and implicit indication. For example, 8 bits can be used to represent TAC, where the first 2 bits are used to indicate the identifier of the TAG, and the last 6 bits are used to indicate the TA value between each cell in the TAG and the user equipment. For another example, 11 bits can be used to represent TAC, and all 11 bits are used to indicate the TA value. In this case, the TAG targeted by TAC is the TAG to which the cell initially accessed by the user equipment belongs.

[0057] According to an embodiment of the present disclosure, the determination unit 120 may determine the value of TA according to the received TAC. For example, the TA value in the TAC indicates the offset value of the TA, and the determination unit 120 may determine the new TA value according to the offset value of the TA, that is, determine the new TA value by adding the current value of the TA to the offset value of the TA. That is, N_TA_new=N_TA_old+N_TA_offset. Here, N_TA_new represents the new TA value, N_TA_old represents the current value of the TA before receiving the TAC, and N_TA_offset represents the offset value of the TA included in the TAC.

[0058] According to an embodiment of the present disclosure, the determination unit 120 may turn on or off the HARQ process between the electronic device 100 and all cells in the TAG according to the determined TA value.

[0059] According to an embodiment of the present disclosure, the determination unit 120 may determine to turn on or off the HARQ process between the electronic device 100 and all cells in the TAG according to the relationship between the determined TA value and a predetermined threshold of the TA.

[0060] According to an embodiment of the present disclosure, when the value of TA is greater than a predetermined threshold value of TA, the determination unit 120 may determine to turn off the HARQ process between the electronic device 100 and all cells in the TAG. Further, when the value of TA is not greater than the predetermined threshold value of TA, the determination unit 120 may determine to turn on the HARQ process between the electronic device and all cells in the TAG.

[0061] According to an embodiment of the present disclosure, the predetermined threshold of TA may be an agreed value agreed upon in advance between the network side device and the electronic device 100. Optionally, the predetermined threshold of TA may also be a predetermined threshold configured by the network side device for the electronic device 100, so that the electronic device 100 may also receive the predetermined threshold of TA from the network side device.

[0062] According to an embodiment of the present disclosure, when the value of TA is greater than a predetermined threshold value of TA, it indicates that the distance between the electronic device 100 and the network side device is large. In this case, turning on the HARQ process may cause system performance to degrade. Therefore, according to an embodiment of the present disclosure, the HARQ process may be turned off in this case. Conversely, when the value of TA is not greater than a predetermined threshold value of TA, it indicates that the distance between the electronic device 100 and the network side device is small. In this case, turning on HARQ can increase the effectiveness of the system. It can be seen that according to an embodiment of the present disclosure, by reasonably setting the predetermined threshold value of TA, the HARQ process can be reasonably turned on or off.

[0063] The TA value between each cell in a TAG and the electronic device 100 is the same, so the distance between each cell and the electronic device 100 is the same or close. Therefore, according to the embodiment of the present disclosure, the HARQ process can be turned on or off in units of TAG.

[0064] As described above, according to an embodiment of the present disclosure, the electronic device 100 can determine the value of the TA of the TAG according to the TAC for the TAG from the network side device, thereby turning on or off the HARQ process with all cells in the TAG according to the value of the TA. In this way, the network side device does not need to explicitly instruct the electronic device 100 to turn on or off the HARQ process with all cells in a specific TAG, but the electronic device 100 determines it by itself according to the value of the TA, so it can be regarded as an implicit indication method.

[0065] Figure 2 is a signaling flow chart showing the start / stop of the HARQ process according to an embodiment of the present disclosure. Figure 2 In the embodiment, the UE may be implemented by the electronic device 100, and the BS may be a network-side device that provides services for the UE. Figure 2 As shown, in step S201, the BS sends a TAC for a TAG to the UE. Next, in step S202, the UE determines the value of TA according to the received TAC. Next, in step S203, the UE determines whether to turn on or off the HARQ process with all cells in the TAG targeted by the TAC according to the value of TA. Next, in step S204, the BS sends downlink data to the UE. Next, in step S205, the UE decodes the data. Here, assuming that the BS belongs to the TAG targeted by the TAC, in step S203, if the UE determines to turn off the HARQ process with all cells in the TAG, the UE does not provide feedback; in step S203, if the UE determines to turn on the HARQ process with all cells in the TAG, in step S206, the UE feeds back ACK / NACK to the BS according to the decoding result in step S205. Thus, the UE can turn on or off the HARQ process with all cells in the TAG according to the value of the TA of the TAG.

[0066] According to an embodiment of the present disclosure, the information related to the TAG may include configuration information of the TAG, and the configuration information of the TAG includes information related to the opening or closing of the HARQ process. Further, the above-mentioned information related to the TAG may be carried by high-level signaling such as RRC (Radio Resource Control) information. For example, the configuration information of the TAG may be the "TAG-Config information element" information element in the RRC information.

[0067] According to an embodiment of the present disclosure, the network side device can use the existing field in the "TAG-Config information element" information element to indicate whether to turn on or off the HARQ process. For example, the network side device can use the value of the "timeAlignmentTimer" field in the "TAG-Configinformation element" information to indicate whether to turn on or off the HARQ process between the user equipment and all cells in the TAG. According to an embodiment of the present disclosure, the value of the "timeAlignmentTimer" field in the "TAG-Configinformation element" information indicates a TA timer, which is used to maintain the TAC received by the electronic device 100, and the value of this field is used to indicate the valid time of the TA value. When it is determined to turn off the HARQ process of the user equipment and all cells in the TAG targeted by the "TAG-Config information element", the network side device can set the value of the "timeAlignmentTimer" field to a predetermined value (preferably "infinity"); when it is determined to turn on the HARQ process of the user equipment and all cells in the TAG targeted by the "TAG-Config information element", the network side device can set the value of the "timeAlignmentTimer" field to a non-predetermined value, that is, the effective time of the TA value.

[0068] According to an embodiment of the present disclosure, a network side device may add a field in the "TAG-Config information element" information element to indicate whether to turn on or off the HARQ process between the user equipment and all cells in the TAG targeted by the "TAG-Config information element" information element. For example, the network side device may add a "HARQ_feedback_enable" field in the "TAG-Config information element" information element. When the value of the field is "ON", it indicates turning on the HARQ process between the user equipment and all cells in the TAG targeted by the "TAG-Config information element" information element; when the value of the field is "OFF", it indicates turning off the HARQ process between the user equipment and all cells in the TAG targeted by the "TAG-Config information element" information element.

[0069] According to an embodiment of the present disclosure, the determination unit 120 may turn on or off the HARQ process between the electronic device 100 and all cells in the TAG according to the information related to turning on or off the HARQ process in the configuration information of the TAG. Specifically, the determination unit 120 may turn on or off the HARQ process between the electronic device 100 and all cells in the TAG according to the value of the field related to turning on or off the HARQ process in the configuration information of the TAG.

[0070] For example, when the network side device uses the value of the "timeAlignmentTimer" field in the "TAG-Config information element" information to indicate whether to turn on or off the HARQ process between the electronic device 100 and all cells in the TAG, the determination unit 120 can determine the value of the "timeAlignmentTimer" field. When the value of the "timeAlignmentTimer" field is a predetermined value (preferably "infinity", infinity), it is determined to turn off the HARQ process between the electronic device 100 and all cells in the TAG; when the value of the "timeAlignmentTimer" field is not a predetermined value (preferably "infinity", infinity), it is determined to turn on the HARQ process between the electronic device 100 and all cells in the TAG. For another example, when the network side device uses the value of the "HARQ_feedback_enable" field in the "TAG-Config information element" information to indicate whether to turn on or off the HARQ process between the electronic device 100 and all cells in the TAG, the determination unit 120 can determine the value of the "HARQ_feedback_enable" field. When the value of the "HARQ_feedback_enable" field is "ON", it is determined to turn on the HARQ process between the electronic device 100 and all cells in the TAG; when the value of the "HARQ_feedback_enable" field is "OFF", it is determined to turn off the HARQ process between the electronic device 100 and all cells in the TAG.

[0071] As described above, according to an embodiment of the present disclosure, the electronic device 100 can determine whether to turn on or off the HARQ process according to the value of the field related to the turning on or off of the HARQ process in the TAG configuration information. That is, the subject that decides to turn on or off the HARQ process is the network side device, and the electronic device 100 can turn on or off the HARQ process according to the instruction of the network side device. This indication method can be regarded as an explicit indication method.

[0072] Figure 3is a signaling flow chart showing the start / stop of the HARQ process according to an embodiment of the present disclosure. Figure 3 In the embodiment, the UE may be implemented by the electronic device 100, and the BS may be a network-side device that provides services for the UE. Figure 3 As shown, in step S301, the BS sends the configuration information of the TAG to the UE. Next, in step S302, the UE determines to turn on or off the HARQ process between all cells in the TAG targeted by the TAG configuration information according to the TAG configuration information. Next, in step S303, the BS sends downlink data to the UE. Next, in step S304, the UE decodes the data. Here, assuming that the BS belongs to the TAG targeted by the TAG configuration information, in step S302, when the UE determines to turn off the HARQ process between all cells of the TAG, the UE does not provide feedback; in step S302, when the UE determines to turn on the HARQ process between all cells of the TAG, in step S305, the UE feeds back ACK / NACK to the BS according to the decoding result in step S304. As a result, the UE can turn on or off the HARQ process between all cells in the TAG according to the TAG configuration information.

[0073] According to the embodiments of the present disclosure, Figure 1 As shown, the electronic device 100 may further include a feedback unit 130, configured to generate feedback information for downlink data.

[0074] According to an embodiment of the present disclosure, in the case where the determination unit 120 determines to turn on the HARQ process between the electronic device 100 and all cells in the TAG, when data is received from the network side device of the cell in the TAG, the feedback unit 130 can generate feedback information for the data and feed it back to the network side device that sent the data. The feedback information includes ACK or NACK. Further, in the case where the determination unit 120 determines to turn off the HARQ process between the electronic device 100 and all cells in the TAG, when data is received from the network side device of the cell in the TAG, the feedback unit 130 does not feed back feedback information to the network side device that sent the data. Here, the data received from the network side device may include control data and service data.

[0075] According to an embodiment of the present disclosure, the electronic device 100 can receive updated TAG-related information from the network side device through the communication unit 110, and the determination unit 120 can turn off or on the HARQ process between the electronic device 100 and all cells in the TAG based on the updated TAG-related information.

[0076] For example, when the information related to the TAG is TAC, the electronic device 100 can receive an updated TAC from the network side device through the communication unit 110, and re-determine the TA value, thereby determining whether to turn off or on the HARQ process between the electronic device 100 and all cells in the TAG according to the re-determined TA value. For another example, when the information related to the TAG is TAG configuration information, the electronic device can receive updated TAG configuration information from the network side device through the communication unit 110, and determine whether to turn off or on the HARQ process between the electronic device 100 and all cells in the TAG according to the updated TAG configuration information.

[0077] As described above, according to the embodiments of the present disclosure, for a specific electronic device 100 , the HARQ process between the electronic device 100 and all cells in the TAG can be turned on or off in units of TAGs.

[0078] According to an embodiment of the present disclosure, the electronic device 100 may also turn off or on a specific HARQ process according to information related to the specific HARQ process from a network-side device.

[0079] According to an embodiment of the present disclosure, the electronic device 100 may receive information related to a specific HARQ process from a network side device through the communication unit 110. Here, the information related to the specific HARQ process may include identification information of the HARQ process. Further, the information related to the specific HARQ process may also include information indicating whether to turn on or off the HARQ process. Further, according to an embodiment of the present disclosure, the determination unit 120 may identify the specific HARQ process based on the received information related to the specific HARQ process. Further, the determination unit 120 may determine whether to turn off or turn on the specific HARQ process based on the received information related to the specific HARQ process.

[0080] According to an embodiment of the present disclosure, low-layer signaling such as DCI (Downlink Control Information) may be used to carry information related to a specific HARQ process.

[0081] As described above, according to the embodiments of the present disclosure, all HARQ processes between the electronic device 100 and all cells in the TAG can be turned on or off according to information related to the TAG. Further, a specific HARQ process can also be turned on or off according to information related to the specific HARQ process.

[0082] Figure 4 is a signaling flow chart showing the start / stop of the HARQ process according to an embodiment of the present disclosure. Figure 4In the embodiment, the UE may be implemented by the electronic device 100, and the BS may be a network-side device that provides services for the UE. Figure 4 As shown, in step S401, the BS sends a TAC to the UE. Next, in step S402, the UE determines the value of TA according to the TAC. Next, in step S403, the UE determines to start the HARQ process with all cells in the TAG targeted by the TAC according to the TA value. Next, in step S404, the BS sends downlink data to the UE. Next, in step S405, the UE decodes the data. Here, it is assumed that the BS belongs to the TAG targeted by the TAC. In step S406, the UE feeds back ACK / NACK to the BS according to the decoding result in step S405. Next, in step S407, the UE receives information related to a specific HARQ process from the BS, which indicates that the specific HARQ process is turned off. In step S408, the BS sends data to the UE, and the data belongs to the specific HARQ process. In step S409, the UE decodes the data and does not send feedback information to the BS. As a result, the UE can start the HARQ process with all cells in the TAG according to the TAC, and turn off the specific HARQ process according to the information related to the specific HARQ process.

[0083] Figure 5 is a signaling flow chart showing the start / stop of the HARQ process according to an embodiment of the present disclosure. Figure 5 In the embodiment, the UE may be implemented by the electronic device 100, and the BS may be a network-side device that provides services for the UE. Figure 5 As shown, in step S501, the BS sends a TAC to the UE. Next, in step S502, the UE determines the value of TA according to the TAC. Next, in step S503, the UE determines to close the HARQ process between all cells in the TAG targeted by the TAC according to the TA value. Next, in step S504, the BS sends downlink data to the UE. Next, in step S505, the UE decodes the data. Here, assuming that the BS belongs to the TAG targeted by the TAC, the UE does not send feedback information to the BS. Next, in step S506, the UE receives information related to a specific HARQ process from the BS, and the information indicates that a specific HARQ process is turned on. In step S507, the BS sends data to the UE, and the data belongs to a specific HARQ process. In step S508, the UE decodes the data. Next, in step S509, the UE feeds back ACK / NACK to the BS based on the decoding result in step S508. Thus, the UE can turn off the HARQ process between itself and all cells in the TAG according to the TAC, and turn on a specific HARQ process according to information related to the specific HARQ process.

[0084] Figure 6 is a signaling flow chart showing the start / stop of the HARQ process according to an embodiment of the present disclosure. Figure 6 In the embodiment, the UE may be implemented by the electronic device 100, and the BS may be a network-side device that provides services for the UE. Figure 6 As shown, in step S601, the BS sends TAG configuration information to the UE. Next, in step S602, the UE determines to start the HARQ process between all cells in the TAG targeted by the TAG configuration information according to the TAG configuration information. Next, in step S603, the BS sends downlink data to the UE. Next, in step S604, the UE decodes the data. Here, it is assumed that the BS belongs to the TAG targeted by the TAG configuration information. In step S605, the UE feeds back ACK / NACK to the BS according to the decoding result in step S604. Next, in step S606, the UE receives information related to a specific HARQ process from the BS, and the information indicates that the specific HARQ process is turned off. In step S607, the BS sends data to the UE, and the data belongs to the specific HARQ process. In step S608, the UE decodes the data and does not send feedback information to the BS. As a result, the UE can start the HARQ process between all cells in the TAG according to the TAG configuration information, and turn off the specific HARQ process according to the information related to the specific HARQ process.

[0085] Figure 7 is a signaling flow chart showing the start / stop of the HARQ process according to an embodiment of the present disclosure. Figure 7 In the embodiment, the UE may be implemented by the electronic device 100, and the BS may be a network-side device that provides services for the UE. Figure 7 As shown, in step S701, the BS sends TAG configuration information to the UE. Next, in step S702, the UE determines to turn off the HARQ process between all cells in the TAG targeted by the TAG configuration information according to the TAG configuration information. Next, in step S703, the BS sends downlink data to the UE. Next, in step S704, the UE decodes the data. Here, assuming that the BS belongs to the TAG targeted by the TAG configuration information, the UE does not feedback ACK / NACK to the BS. Next, in step S705, the UE receives information related to a specific HARQ process from the BS, and the information indicates that a specific HARQ process is turned on. In step S706, the BS sends data to the UE, and the data belongs to a specific HARQ process. In step S707, the UE decodes the data. Next, in step S708, the UE sends feedback information to the BS. As a result, the UE can turn off the HARQ process between all cells in the TAG according to the TAG configuration information, and turn on the specific HARQ process according to the information related to the specific HARQ process.

[0086] According to an embodiment of the present disclosure, the electronic device 100 has one or more serving cells, which are divided into one or more TAGs. According to an embodiment of the present disclosure, the electronic device 100 can receive information related to each TAG from a network side device of the primary serving cell of the electronic device 100.

[0087] According to an embodiment of the present disclosure, for example, a network side device of a primary service cell can configure one or more service cells for the electronic device 100, and divide the one or more service cells into multiple TAGs, and then send TAG information to which each cell belongs to the electronic device 100. Such information related to the configuration of the TAG can be carried by the "TAG-Config information element" in the RRC information.

[0088] In other words, according to an embodiment of the present disclosure, the electronic device 100 can receive information related to each TAG of the electronic device 100 from the network side device of the primary service cell, so that for each TAG, the electronic device 100 can turn on or off the HARQ process with all cells in the TAG according to the information related to the TAG. Here, the primary service cell can be an SPCell (Special Cell), which includes the primary cell (Primary Cell, PCell) of the electronic device 100, that is, the cell initially accessed by the electronic device 100, and can also include the primary secondary cell (Primary Secondary Cell, PSCell) of the electronic device 100, that is, the main cell in the secondary cell group (secondary cell group, SCG).

[0089] For example, assume that the electronic device 100 has three service cells, including one primary cell and two secondary cells (SCell), namely: PCell, SCell1 and SCell2. Further, PCell and SCell1 belong to TAG1, and SCell2 belongs to TAG2. In this case, the electronic device 100 can receive information related to TAG1 from the network side device of PCell, so as to determine whether to turn on or off the HARQ process with all cells (PCell and SCell1) in TAG1. Further, the electronic device 100 can receive information related to TAG2 from the network side device of PCell, so as to determine whether to turn on or off the HARQ process with all cells (SCell2) in TAG2.

[0090] It can be seen that according to an embodiment of the present disclosure, the electronic device 100 can turn on or off the HARQ process between the electronic device 100 and all cells in the TAG according to the information related to the TAG. In this way, the electronic device 100 can turn on / off the HARQ process in units of TAG. Further, the information related to the TAG (such as TAC or TAG configuration information) is user-specific (UE-Specific) information. In this way, the HARQ process of a specific user equipment can be turned on / off by information from a network side device. In summary, according to an embodiment of the present disclosure, the HARQ process of a specific user equipment can be turned on or off in units of TAG. Further, according to an embodiment of the present disclosure, the network side device can indicate to turn on or off the HARQ process in an explicit manner and an implicit manner. In addition, the electronic device 100 can re-determine whether to turn on or off the HARQ process according to the updated information related to the TAG. Further, the electronic device 100 can also turn on or off a specific HARQ process according to information related to a specific HARQ process from a network side device. In summary, according to an embodiment of the present disclosure, the turning on and off of the HARQ process can be made more reasonable.

[0091] <3. Example of configuration of network-side equipment>

[0092] Figure 8 8 is a block diagram showing a structure of an electronic device 800 used as a network side device in a wireless communication system according to an embodiment of the present disclosure.

[0093] like Figure 8 As shown, the electronic device 800 may include a generating unit 810 and a communicating unit 820 .

[0094] Here, each unit of the electronic device 800 may be included in a processing circuit. It should be noted that the electronic device 800 may include one processing circuit or multiple processing circuits. Further, the processing circuit may include various discrete functional units to perform various functions and / or operations. It should be noted that these functional units may be physical entities or logical entities, and units with different names may be implemented by the same physical entity.

[0095] According to an embodiment of the present disclosure, the generating unit 810 may generate information related to the TAG of the user equipment served by the electronic device 800. Here, the information related to the TAG of the user equipment may be used to instruct the user equipment to turn on or off the HARQ process with all cells in the TAG.

[0096] According to an embodiment of the present disclosure, the electronic device 800 may send information related to the TAG to the user equipment through the communication unit 820 to instruct the user equipment to turn on or off the HARQ process between the user equipment and all cells in the TAG.

[0097] As described above, according to an embodiment of the present disclosure, the electronic device 800 can generate information related to the TAG of the user equipment to instruct the user equipment to turn on or off the HARQ process with all cells in the TAG, which can make the turning on and off of the HARQ process more reasonable.

[0098] According to an embodiment of the present disclosure, the TAG-related information generated by the generation unit 810 may include a TAC related to the TAG, and the TAC indicates a value of the same TA between the user equipment and all cells in the TAG.

[0099] According to an embodiment of the present disclosure, the generating unit 810 may include the identification information of the TAG and the value for indicating the TA, such as the offset value of the TA, in the TAC. Further, the generating unit 810 may also include only the value for indicating the TA in the TAC, in which case the TAC corresponds to the TAG to which the cell initially accessed by the user equipment is located.

[0100] According to an embodiment of the present disclosure, a predetermined threshold of TA may be set for each TAG, or a unified predetermined threshold of TA may be set for all TAGs. Here, the electronic device 800 may agree in advance with the user equipment on the predetermined threshold of TA of any TAG. Further, the electronic device 800 may also send the predetermined threshold of TA of any TAG to the user equipment through the communication unit 820. In this way, the user equipment may determine the value of TA according to the TAC, and use the predetermined threshold of TA and the value of TA to determine whether to turn on or off the HARQ process with all cells in the TAG.

[0101] According to an embodiment of the present disclosure, the electronic device 800 may determine a predetermined threshold of the TA according to the capability of the user equipment. According to an embodiment of the present disclosure, the electronic device 800 may receive capability information of the user equipment from the user equipment through the communication unit 820. Here, the capability of the user equipment may include a user category and a dual connection capability of the user equipment.

[0102] According to an embodiment of the present disclosure, the electronic device 800 may determine the rate supported by the user equipment according to the user category. Further, according to an embodiment of the present disclosure, when the rate supported by the user equipment is high, the electronic device 800 may set the predetermined threshold of TA to be lower, so that the possibility of the user equipment shutting down the HARQ process is greater; when the rate supported by the user equipment is low, the electronic device 800 may set the predetermined threshold of TA to be higher, so that the possibility of the user equipment shutting down the HARQ process is less.

[0103] According to an embodiment of the present disclosure, the electronic device 800 may also determine a predetermined threshold value of the TA according to the dual connection capability of the user equipment. For example, when the user equipment has dual connection capability, it can be connected to two cells (e.g., a cell in the TN and a cell in the NTN). The electronic device 800 may set a higher predetermined threshold value of the TA of the TAG where the cell in the TN is located, so that the user equipment is less likely to shut down the HARQ process, and set a lower predetermined threshold value of the TA of the TAG where the cell in the NTN is located, so that the user equipment is more likely to shut down the HARQ process. In this way, for high-reliability services, reliability can be ensured by transmitting in the cell in the TN with HARQ turned on, while high-speed transmission can be achieved by turning off the HARQ of the cell in the NTN.

[0104] In addition, according to an embodiment of the present disclosure, the electronic device 800 may also determine a predetermined threshold value of TA according to the sensitivity of the service of the user equipment to the delay. For example, when the service of the user equipment is sensitive to the delay, the electronic device 800 may set the predetermined threshold value of TA to be lower, so that the user equipment is more likely to shut down the HARQ process; when the service of the user equipment is not sensitive to the delay, the electronic device 800 may set the predetermined threshold value of TA to be higher, so that the user equipment is less likely to shut down the HARQ process.

[0105] As described above, the electronic device 800 sets the predetermined threshold of TA in a non-limiting embodiment, and the present disclosure is not limited thereto. The electronic device 800 can comprehensively consider the user's ability and the sensitivity of the service to the delay to determine the predetermined threshold of TA. Of course, the electronic device 800 can also consider other parameters to determine the predetermined threshold of TA.

[0106] As described above, the electronic device 800 can indicate the value of TA to the user equipment through TAC, and can also configure the predetermined threshold of TA, so that the user equipment can determine whether to turn on or off the HARQ process between all cells related to TAG according to the value of TA and the predetermined threshold of TA. In this way, the indication can be provided to the user equipment in an implicit manner. That is, the subject that decides to turn on or off the HARQ process is the user equipment.

[0107] According to the embodiments of the present disclosure, Figure 8 As shown, the electronic device 800 may further include a determination unit 830, configured to determine whether to enable or disable the HARQ process between the user equipment and all cells in the TAG. Further, the generation unit 810 may generate information related to the TAG according to the result determined by the determination unit 830.

[0108] According to an embodiment of the present disclosure, the determining unit 820 may determine to turn on or off the HARQ process between the user equipment and all cells in the TAG according to the same TA value between the user equipment and all cells in the TAG.

[0109] Here, the electronic device 800 may receive uplink information from the user equipment, and may determine the value of the TA according to parameters such as a preamble and an SRS (Sounding Reference Signal) included in the uplink information.

[0110] According to an embodiment of the present disclosure, when the value of the same TA between the user equipment and all cells in the TAG is greater than the predetermined threshold value of the TA, the determination unit 820 may determine to turn off the HARQ process between the user equipment and all cells in the TAG. Further, when the value of the same TA between the user equipment and all cells in the TAG is not greater than the predetermined threshold value of the TA, the determination unit 820 may determine to turn on the HARQ process between the user equipment and all cells in the TAG. Here, the electronic device 800 may determine the predetermined threshold value of the TA according to the method described above.

[0111] According to an embodiment of the present disclosure, the determination unit 830 may determine to enable or disable the HARQ process between the user equipment and all cells in the TAG according to the capability of the user equipment. Here, the capability of the user equipment may include a user category and a dual connectivity capability of the user equipment.

[0112] According to an embodiment of the present disclosure, the determination unit 830 may determine the rate supported by the user equipment according to the user category. Further, according to an embodiment of the present disclosure, for all cells included in a specific TAG, when the rate supported by the user equipment is high, the determination unit 830 may determine to turn off the HARQ process between the user equipment and all cells included in the TAG; when the rate supported by the user equipment is low, the determination unit 830 may determine to turn on the HARQ process between the user equipment and all cells included in the TAG.

[0113] According to an embodiment of the present disclosure, the determination unit 830 may also determine whether to turn on or off the HARQ process between the user equipment and all cells in the TAG according to the dual connectivity capability of the user equipment. For example, when the user equipment has dual connectivity capability, it can be connected to two cells (e.g., a cell in the TN and a cell in the NTN), and the determination unit 830 may turn on the HARQ process between the user equipment and the cell in the TN, and turn off the HARQ process between the user equipment and the cell in the NTN. In this way, for high-reliability services, the reliability can be ensured by transmitting in the cell in the TN with HARQ turned on, while turning off the HARQ of the cell in the NTN can achieve high-speed transmission.

[0114] In addition, according to an embodiment of the present disclosure, the determination unit 830 may also determine whether to turn on or off the HARQ process between the user equipment and all cells in the TAG according to the sensitivity of the service of the user equipment to the delay. For example, for all cells in a specific TAG, when the service of the user equipment is sensitive to the delay, the determination unit 830 may determine to turn off the HARQ process between the user equipment and all cells in the TAG; when the service of the user equipment is not sensitive to the delay, the determination unit 830 may determine to turn on the HARQ process between the user equipment and all cells in the TAG.

[0115] As described above, the embodiment of the electronic device 800 determining to turn on or off the HARQ process between the user equipment and all cells in the TAG is described with a non-limiting embodiment, and the present disclosure is not limited thereto. The electronic device 800 can comprehensively consider the value of the TA, the user capability, and the sensitivity of the service to the delay to determine whether to turn on or off the HARQ process between the user equipment and all cells in the TAG. Of course, the electronic device 800 can also consider other parameters to determine whether to turn on or off the HARQ process between the user equipment and all cells in the TAG.

[0116] According to an embodiment of the present disclosure, the information related to the TAG generated by the generation unit 810 may include configuration information of the TAG, and the configuration information of the TAG may include information related to the enabling or disabling of the HARQ process.

[0117] Here, the electronic device 800 may carry the information related to the TAG through high-layer signaling such as RRC information. The configuration information of the TAG includes TAG-Config information element information.

[0118] According to an embodiment of the present disclosure, the generation unit 810 may use the existing field in the "TAG-Config information element" information element to indicate whether the HARQ process is turned on or off. For example, the generation unit 810 may use the value of the "timeAlignmentTimer" field in the "TAG-Config information element" information to indicate whether the HARQ process between the user equipment and all cells in the TAG is turned on or off. According to an embodiment of the present disclosure, in the case of determining to turn off the HARQ process between the user equipment and all cells in the TAG targeted by the "TAG-Config information element" information, the generation unit 810 may set the value of the "timeAlignmentTimer" field to a predetermined value (preferably "infinity"); in the case of determining to turn on the HARQ process between the user equipment and all cells in the TAG targeted by the "TAG-Config information element" information, the generation unit 810 may set the value of the "timeAlignmentTimer" field to a non-predetermined value, that is, the effective time of the TA value.

[0119] According to an embodiment of the present disclosure, the generating unit 810 may add a field related to the turning on or off of the HARQ process in the TAG-Config information element information to indicate turning on or off the HARQ process between the user equipment and all cells in the TAG.

[0120] For example, the generation unit 810 can add a "HARQ_feedback_enable" field in the "TAG-Config information element" information element. When the value of the field is "ON", it means that the HARQ process between the user equipment and all cells in the TAG targeted by the "TAG-Config information element" information element is turned on; when the value of the field is "OFF", it means that the HARQ process between the user equipment and all cells in the TAG targeted by the "TAG-Config information element" information element is turned off.

[0121] According to an embodiment of the present disclosure, the electronic device 800 may update the information related to the TAG. For example, the generation unit 810 may update the information related to the TAG of the user equipment, that is, regenerate the information related to the TAG. Further, the electronic device 800 may send the updated information to the user equipment through the communication unit 810 to instruct the user equipment to turn off or turn on the HARQ process between the user equipment and all cells in the TAG. For example, when the TA value of a certain TAG changes, the generation unit 810 of the electronic device 800 may regenerate the TAC of the TAG to send it to the user equipment. For another example, when the electronic device 800 determines that it is necessary to turn off the HARQ process between the user equipment that was originally turned on and all cells in a certain TAG, or to turn on the HARQ process between the user equipment that was originally turned off and all cells in a certain TAG, the generation unit 810 may regenerate the configuration information of the TAG to send it to the user equipment.

[0122] According to an embodiment of the present disclosure, the determination unit 830 may also determine to turn on or off a specific HARQ process in the HARQ processes between the user equipment and all cells in the TAG, so that the generation unit 810 may also generate information related to the specific HARQ process to instruct the user equipment to turn on or off the specific HARQ process. Further, the electronic device 800 may send information related to the specific HARQ process to the user equipment through the communication unit 810 to instruct the user equipment to turn on or off the specific HARQ process. For example, when the determination unit 830 determines that the on / off state of a specific HARQ process needs to be changed, information related to the specific HARQ process may be sent to the user equipment to instruct the user equipment to change the on / off state of the specific HARQ process.

[0123] According to an embodiment of the present disclosure, the electronic device 800 may carry information related to a specific HARQ process through low-layer signaling such as DCI.

[0124] According to an embodiment of the present disclosure, the user equipment has one or more service cells, and the one or more service cells are divided into one or more TAGs. The electronic device 800 is a network side device of the primary service cell of the user equipment. Further, the electronic device 800 can not only send information related to the TAG to which the electronic device 800 belongs to the user equipment, but also send information related to other TAGs other than the TAG to which the electronic device 800 belongs to the user equipment.

[0125] According to an embodiment of the present disclosure, the electronic device 100 can be used as a user device, and the electronic device 800 can be used as a network-side device, that is, the electronic device 800 can provide services for the electronic device 100, so all the embodiments described above about the electronic device 100 are applicable hereto.

[0126] <4. Method Example>

[0127] Next, a wireless communication method performed by the electronic device 100 as a user equipment in a wireless communication system according to an embodiment of the present disclosure will be described in detail.

[0128] Fig. 9 is a flowchart illustrating a wireless communication method performed by an electronic device 100 as a user equipment in a wireless communication system according to an embodiment of the present disclosure.

[0129] like Fig. 9 As shown, in step S910, information related to the timing advance group TAG is received from a network side device serving the electronic device.

[0130] Next, in step S920, the HARQ process between the electronic device and all cells in the TAG is turned on or off according to the information related to the TAG.

[0131] Preferably, the information related to the TAG includes a timing advance command TAC related to the TAG, and turning on or off the HARQ process between the electronic device and all cells in the TAG includes: determining the value of the timing advance TA according to the TAC; and turning on or off the HARQ process between the electronic device and all cells in the TAG according to the value of TA.

[0132] Preferably, turning on or off the HARQ process between the electronic device and all cells in the TAG includes: when the value of TA is greater than a predetermined threshold of TA, turning off the HARQ process between the electronic device and all cells in the TAG; and when the value of TA is not greater than a predetermined threshold of TA, turning on the HARQ process between the electronic device and all cells in the TAG.

[0133] Preferably, the predetermined threshold of TA is an agreed value between the network side device and the electronic device, or wherein the wireless communication method further comprises: receiving the predetermined threshold of TA from the network side device.

[0134] Preferably, the information related to the TAG includes configuration information of the TAG, and turning on or off the HARQ process between the electronic device and all cells in the TAG includes: turning on or off the HARQ process between the electronic device and all cells in the TAG according to information related to turning on or off the HARQ process in the configuration information of the TAG.

[0135] Preferably, the information related to the TAG is carried by high-layer signaling.

[0136] Preferably, the high-layer signaling includes RRC information, and the configuration information of the TAG includes TAG-Configinformation element information.

[0137] Preferably, starting the HARQ process between the electronic device and all cells in the TAG includes: when data is received from the network side device of the cell in the TAG, feeding back ACK or NACK to the network side device; and closing the HARQ process between the electronic device and all cells in the TAG includes: when data is received from the network side device of the cell in the TAG, not feeding back ACK or NACK to the network side device.

[0138] Preferably, the data includes control data and service data.

[0139] Preferably, the wireless communication method also includes: after turning on or off the HARQ process between the electronic device and all cells in the TAG, receiving updated TAG-related information from the network side device; and turning off or on the HARQ process between the electronic device and all cells in the TAG according to the updated TAG-related information.

[0140] Preferably, the wireless communication method also includes: after turning on or off the HARQ process between the electronic device and all cells in the TAG, receiving information related to a specific HARQ process from a network side device; and turning off or on the specific HARQ process according to the information related to the specific HARQ process.

[0141] Preferably, information related to a specific HARQ process is carried by low-layer signaling.

[0142] Preferably, the low layer signaling includes DCI.

[0143] Preferably, the electronic device has one or more service cells, and the one or more service cells are divided into one or more TAGs, and the wireless communication method further comprises: receiving information related to each TAG from a network side device of a main service cell of the electronic device.

[0144] According to an embodiment of the present disclosure, the subject that executes the above method may be the electronic device 100 according to an embodiment of the present disclosure, and therefore all the embodiments regarding the electronic device 100 in the foregoing text are applicable hereto.

[0145] Next, a wireless communication method performed by the electronic device 800 as a network side device in a wireless communication system according to an embodiment of the present disclosure will be described in detail.

[0146] Fig.108 is a flowchart illustrating a wireless communication method performed by an electronic device 800 as a network side device in a wireless communication system according to an embodiment of the present disclosure.

[0147] like Fig.10 As shown, in step S1010, information related to the timing advance group TAG of the user equipment served by the electronic device is generated.

[0148] Next, in step S1020, information related to the TAG is sent to the user equipment to instruct the user equipment to start or stop the HARQ process between the user equipment and all cells in the TAG.

[0149] Preferably, the information related to the TAG includes a timing advance command TAC related to the TAG, and the TAC indicates a value of the same timing advance TA between the user equipment and all cells in the TAG.

[0150] Preferably, the wireless communication method further comprises: determining to turn on or off a HARQ process between the user equipment and all cells in the TAG; and generating information related to the TAG according to a result of the determination.

[0151] Preferably, determining to start or stop the HARQ process between the user equipment and all cells in the TAG includes: determining to start or stop the HARQ process between the user equipment and all cells in the TAG according to a value of the same timing advance TA between the user equipment and all cells in the TAG.

[0152] Preferably, determining whether to start or stop the HARQ process between the user equipment and all cells in the TAG includes: when the value of TA is greater than a predetermined threshold of TA, determining to stop the HARQ process between the user equipment and all cells in the TAG; and when the value of TA is not greater than a predetermined threshold of TA, determining to start the HARQ process between the user equipment and all cells in the TAG.

[0153] Preferably, the information related to the TAG includes configuration information of the TAG, and the configuration information of the TAG includes information related to enabling or disabling of the HARQ process.

[0154] Preferably, the information related to the TAG is carried by high-layer signaling.

[0155] Preferably, the high-layer signaling includes RRC information, and the configuration information of the TAG includes TAG-Configinformation element information.

[0156] Preferably, the value of the timeAlignmentTimer field in the TAG-Config information element is used to indicate whether to start or stop the HARQ process between the user equipment and all cells in the TAG.

[0157] Preferably, a field related to the opening or closing of the HARQ process is added to the TAG-Config information element information to indicate the opening or closing of the HARQ process between the user equipment and all cells in the TAG.

[0158] Preferably, the wireless communication method further comprises: updating information related to the TAG of the user equipment; and sending the updated information to the user equipment to instruct the user equipment to close or open the HARQ process between the user equipment and all cells in the TAG.

[0159] Preferably, the wireless communication method also includes: determining to turn on or off a specific HARQ process in the HARQ processes between the user equipment and all cells in the TAG; and sending information related to the specific HARQ process to the user equipment to instruct the user equipment to turn on or off the specific HARQ process.

[0160] Preferably, information related to a specific HARQ process is carried by low-layer signaling.

[0161] Preferably, the low layer signaling includes DCI.

[0162] Preferably, the user equipment has one or more service cells, the one or more service cells are divided into one or more TAGs, and the electronic device is a network side device of a primary service cell of the user equipment.

[0163] According to an embodiment of the present disclosure, the subject that executes the above method may be an electronic device 800 according to an embodiment of the present disclosure, and therefore all the embodiments of the electronic device 800 in the foregoing text are applicable hereto.

[0164] <5. Application Examples>

[0165] The technology of the present disclosure can be applied to various scenarios. Specifically, in each scenario, the user equipment has one or more serving cells, and the one or more serving cells are divided into one or more TAGs. Several embodiments are described below in a non-limiting manner.

[0166] Fig.11 is a schematic diagram showing an application scenario according to an embodiment of the present disclosure. Fig.11As shown, NTN BS can cover area A, area B and area C at the same time, TN BS can cover area C, UE#1 is located in area A, UE#2 is located in area B, and UE#3 is located in area C. Fig.11 In the scenario shown, UE#1 is connected to the NTN BS, UE#2 is connected to the NTN BS, and UE#3 is connected to both the NTN BS and the TN BS. That is, UE#1 has one serving cell, namely, area A covered by the NTN BS, UE#2 has one serving cell, namely, area B covered by the NTN BS, and UE#3 has two serving cells, namely, area C covered by the NTN BS and area C covered by the TN BS.

[0167] According to an embodiment of the present disclosure, UE#1 has a TAG#1, including area A covered by NTN BS. Since UE#1 is far away from NTN BS and has a large transmission delay, UE#1 can be configured to turn off HARQ between all cells included in TAG#1 according to explicit or implicit instructions from NTN BS to improve system efficiency. Further, UE#2 has a TAG#2, including area B covered by NTN BS. It is assumed here that UE#2 is a sensor user that only periodically reports certain data (such as temperature, humidity, etc.) and is not sensitive to delay. Therefore, according to explicit or implicit instructions from NTN BS, UE#2 can be configured to turn on HARQ between all cells included in TAG#2 to improve system reliability. Further, it is assumed that UE#3 has two TAGs: TAG#3 and TAG#4, TAG#3 includes area C covered by NTN BS, and TAG#4 includes area C covered by TN BS, wherein area C covered by TN BS is the primary service cell. According to the explicit or implicit instruction from the TN BS, UE#3 can be configured to turn off HARQ with all cells included in TAG#3 and turn on HARQ with all cells included in TAG#4. That is, UE#3 does not feed back ACK / NACK for downlink data from NTN cells, but feeds back ACK / NACK for downlink data from TN cells.

[0168] As described above, in a wireless communication system including NTN and TN, the user equipment can reasonably turn on or off the HARQ process in units of TAGs.

[0169] In the scenario where the UE supports CA (Carrier aggregation), the UE can be configured with multiple service cells. For example, assume that the UE has a service cell Scell#1 from an RRH (Remote Radio Head) on a geostationary satellite, a service cell Pcell from a ground base station, and a service cell Scell#2. These cells serve the UE in a CA manner. Assume that Pcell and Scell#2 belong to one TAG, denoted as TAG#1, and the service cell Scell#1 belongs to another TAG, denoted as TAG#2. The network-side device in the service cell Pcell of the ground base station can explicitly or implicitly indicate to the UE to turn on the HARQ process with all cells in TAG#1, and to indicate to the UE to turn off the HARQ process with all cells in TAG#2. For example, for TAG#1, the value of the field "HARQ_feedback_enable" is "ON"; for TAG#2, the value of the field "HARQ_feedback_enable" is "OFF".

[0170] In the scenario where the UE supports dual connectivity, the UE can be configured with multiple service cell groups, each of which contains multiple service cells. For example, the UE is served by the service cell PScell ​​and the service cell Scell#1 from the geostationary satellite base station and the service cell Pcell and the service cell Scell#2 from the ground base station in a dual connectivity manner, where the PScell ​​and Scell#1 belong to the SCG (secondary cell group), and the Pcell and Scell#2 belong to the MCG (master cell group). It is assumed here that the Pcell and Scell#2 belong to one TAG, denoted as TAG#1, and the PScell ​​and Scell#1 belong to another TAG, denoted as TAG#2. The serving cell PScell ​​can explicitly or implicitly indicate to the UE to turn off the HARQ process between it and all cells in TAG#2, for example, the value of the field "HARQ_feedback_enable" for TAG#2 is "OFF", while the serving cell Pcell can explicitly or implicitly indicate to the UE to turn on the HARQ process between it and all cells in TAG#1, for example, the value of the field "HARQ_feedback_enable" for TAG#1 is "ON".

[0171] The above describes the application scenarios of the present disclosure in a non-limiting manner. Those skilled in the art should appreciate that the present disclosure can be applied to all scenarios where a serving cell of a user equipment is divided into one or more TAGs.

[0172] The network side device can be implemented as any type of TRP. The TRP can have sending and receiving functions, for example, it can receive information from the user equipment and the base station device, and can also send information to the user equipment and the base station device. In a typical example, the TRP can provide services for the user equipment and is controlled by the base station device. Furthermore, the TRP can have a structure similar to the base station device described below, or it can only have the structure related to sending and receiving information in the base station device.

[0173] The network side device can also be implemented as any type of base station device, such as macro eNB and small eNB, and can also be implemented as any type of gNB (base station in 5G system). Small eNB can be an eNB that covers a cell smaller than a macro cell, such as pico eNB, micro eNB and home (femto) eNB. Alternatively, the base station can be implemented as any other type of base station, such as NodeB and base transceiver station (BTS). The base station may include: a main body (also called a base station device) configured to control wireless communication; and one or more remote radio heads (RRHs) arranged at a place different from the main body.

[0174] The user equipment may be implemented as a mobile terminal (such as a smart phone, a tablet personal computer (PC), a notebook PC, a portable game terminal, a portable / dongle-type mobile router, and a digital camera) or a vehicle-mounted terminal (such as a car navigation device). The user equipment may also be implemented as a terminal that performs machine-to-machine (M2M) communication (also referred to as a machine type communication (MTC) terminal). In addition, the user equipment may be a wireless communication module (such as an integrated circuit module including a single chip) installed on each of the above-mentioned user equipments.

[0175] <Application examples for base stations>

[0176] (First application example)

[0177] Fig.12 1 is a block diagram showing a first example of a schematic configuration of an eNB to which the technology of the present disclosure can be applied. The eNB 1200 includes one or more antennas 1210 and a base station device 1220. The base station device 1220 and each antenna 1210 may be connected to each other via an RF cable.

[0178] Each of the antennas 1210 includes a single or multiple antenna elements (such as multiple antenna elements included in a multiple-input multiple-output (MIMO) antenna) and is used for the base station device 1220 to transmit and receive wireless signals. Fig.12 As shown, the eNB 1200 may include multiple antennas 1210. For example, the multiple antennas 1210 may be compatible with multiple frequency bands used by the eNB 1200. Fig.12An example is shown in which the eNB 1200 includes a plurality of antennas 1210 , but the eNB 1200 may also include a single antenna 1210 .

[0179] The base station device 1220 includes a controller 1221 , a memory 1222 , a network interface 1223 , and a wireless communication interface 1225 .

[0180] The controller 1221 may be, for example, a CPU or a DSP, and operates various functions of the higher layers of the base station device 1220. For example, the controller 1221 generates a data packet based on the data in the signal processed by the wireless communication interface 1225, and transmits the generated packet via the network interface 1223. The controller 1221 may bundle data from a plurality of baseband processors to generate a bundled packet, and transmit the generated bundled packet. The controller 1221 may have a logical function to perform the following control: the control may be such as radio resource control, radio bearer control, mobility management, admission control, and scheduling. The control may be performed in conjunction with a nearby eNB or core network node. The memory 1222 includes a RAM and a ROM, and stores programs executed by the controller 1221 and various types of control data (such as a terminal list, transmission power data, and scheduling data).

[0181] The network interface 1223 is a communication interface for connecting the base station device 1220 to the core network 1224. The controller 1221 can communicate with the core network node or another eNB via the network interface 1223. In this case, the eNB 1200 and the core network node or other eNBs can be connected to each other through a logical interface (such as an S1 interface and an X2 interface). The network interface 1223 can also be a wired communication interface or a wireless communication interface for a wireless backhaul line. If the network interface 1223 is a wireless communication interface, the network interface 1223 can use a higher frequency band for wireless communication compared to the frequency band used by the wireless communication interface 1225.

[0182] The wireless communication interface 1225 supports any cellular communication scheme (such as long term evolution (LTE) and LTE-Advanced), and provides a wireless connection to a terminal located in a cell of the eNB 1200 via the antenna 1210. The wireless communication interface 1225 may generally include, for example, a baseband (BB) processor 1226 and an RF circuit 1227. The BB processor 1226 may perform, for example, encoding / decoding, modulation / demodulation, and multiplexing / demultiplexing, and perform various types of signal processing of layers (e.g., L1, medium access control (MAC), radio link control (RLC), and packet data convergence protocol (PDCP)). Instead of the controller 1221, the BB processor 1226 may have a part or all of the above-mentioned logical functions. The BB processor 1226 may be a memory storing a communication control program, or a module including a processor configured to execute a program and related circuits. Updating the program may change the function of the BB processor 1226. The module may be a card or a blade inserted into a slot of the base station device 1220. Alternatively, the module may also be a chip mounted on a card or a blade. Meanwhile, the RF circuit 1227 may include, for example, a mixer, a filter, and an amplifier, and transmits and receives a wireless signal via the antenna 1210 .

[0183] like Fig.12 As shown, the wireless communication interface 1225 may include multiple BB processors 1226. For example, the multiple BB processors 1226 may be compatible with multiple frequency bands used by the eNB 1200. Fig.12 As shown, the wireless communication interface 1225 may include multiple RF circuits 1227. For example, the multiple RF circuits 1227 may be compatible with multiple antenna elements. Fig.12 An example is shown in which the wireless communication interface 1225 includes a plurality of BB processors 1226 and a plurality of RF circuits 1227 , but the wireless communication interface 1225 may also include a single BB processor 1226 or a single RF circuit 1227 .

[0184] (Second application example)

[0185] Fig.13 13 is a block diagram showing a second example of a schematic configuration of an eNB to which the technology of the present disclosure can be applied. The eNB 1330 includes one or more antennas 1340, a base station device 1350, and an RRH 1360. The RRH 1360 and each antenna 1340 can be connected to each other via an RF cable. The base station device 1350 and the RRH 1360 can be connected to each other via a high-speed line such as an optical fiber cable.

[0186] Each of the antennas 1340 includes a single or multiple antenna elements (such as multiple antenna elements included in a MIMO antenna) and is used for the RRH 1360 to transmit and receive wireless signals. Fig.13 As shown, the eNB 1330 may include multiple antennas 1340. For example, the multiple antennas 1340 may be compatible with multiple frequency bands used by the eNB 1330. Fig.13 An example is shown in which the eNB 1330 includes a plurality of antennas 1340 , but the eNB 1330 may also include a single antenna 1340 .

[0187] The base station device 1350 includes a controller 1351, a memory 1352, a network interface 1353, a wireless communication interface 1355, and a connection interface 1357. The controller 1351, the memory 1352, and the network interface 1353 are similar to the reference Fig.12 The controller 1221, memory 1222, and network interface 1223 described are the same.

[0188] The wireless communication interface 1355 supports any cellular communication scheme (such as LTE and LTE-Advanced), and provides wireless communication to a terminal located in a sector corresponding to the RRH 1360 via the RRH 1360 and the antenna 1340. The wireless communication interface 1355 may generally include, for example, a BB processor 1356. In addition to the BB processor 1356 being connected to the RF circuit 1364 of the RRH 1360 via the connection interface 1357, the BB processor 1356 is connected to the reference RF circuit 1364 of the RRH 1360. Fig.12 The same as the BB processor 1226 described above. Fig.13 As shown, the wireless communication interface 1355 may include multiple BB processors 1356. For example, the multiple BB processors 1356 may be compatible with multiple frequency bands used by the eNB 1330. Fig.13 An example is shown in which the wireless communication interface 1355 includes a plurality of BB processors 1356 , but the wireless communication interface 1355 may also include a single BB processor 1356 .

[0189] The connection interface 1357 is an interface for connecting the base station device 1350 (wireless communication interface 1355) to the RRH 1360. The connection interface 1357 may also be a communication module for connecting the base station device 1350 (wireless communication interface 1355) to the RRH 1360 for communication in the above-mentioned high-speed line.

[0190] The RRH 1360 includes a connection interface 1361 and a wireless communication interface 1363 .

[0191] The connection interface 1361 is an interface for connecting the RRH 1360 (wireless communication interface 1363) to the base station device 1350. The connection interface 1361 may also be a communication module for communication in the above-mentioned high-speed line.

[0192] The wireless communication interface 1363 transmits and receives wireless signals via the antenna 1340. The wireless communication interface 1363 may generally include, for example, an RF circuit 1364. The RF circuit 1364 may include, for example, a mixer, a filter, and an amplifier, and transmits and receives wireless signals via the antenna 1340. Fig.13 As shown, the wireless communication interface 1363 may include multiple RF circuits 1364. For example, the multiple RF circuits 1364 may support multiple antenna elements. Fig.13 An example is shown in which the wireless communication interface 1363 includes a plurality of RF circuits 1364 , but the wireless communication interface 1363 may also include a single RF circuit 1364 .

[0193] exist Fig.12 and Fig.13 In the eNB 1200 and eNB 1330 shown in FIG. Figure 8 The described generating unit 810 and determining unit 830 may be implemented by the controller 1221 and / or the controller 1351. At least a portion of the functions may also be implemented by the controller 1221 and the controller 1351. For example, the controller 1221 and / or the controller 1351 may generate information related to the TAG and determine to turn on or off the HARQ process of the user equipment and all cells in the TAG by executing instructions stored in the corresponding memory.

[0194] <Application examples for terminal devices>

[0195] (First application example)

[0196] Fig.14 14 is a block diagram showing an example of a schematic configuration of a smartphone 1400 to which the technology of the present disclosure can be applied. The smartphone 1400 includes a processor 1401, a memory 1402, a storage device 1403, an external connection interface 1404, a camera 1406, a sensor 1407, a microphone 1408, an input device 1409, a display device 1410, a speaker 1411, a wireless communication interface 1412, one or more antenna switches 1415, one or more antennas 1416, a bus 1417, a battery 1418, and an auxiliary controller 1419.

[0197] The processor 1401 may be, for example, a CPU or a system on chip (SoC), and controls the functions of the application layer and other layers of the smartphone 1400. The memory 1402 includes a RAM and a ROM, and stores data and programs executed by the processor 1401. The storage device 1403 may include a storage medium such as a semiconductor memory and a hard disk. The external connection interface 1404 is an interface for connecting an external device (such as a memory card and a universal serial bus (USB) device) to the smartphone 1400.

[0198] The camera 1406 includes an image sensor such as a charge coupled device (CCD) and a complementary metal oxide semiconductor (CMOS), and generates a captured image. The sensor 1407 may include a group of sensors such as a measurement sensor, a gyro sensor, a geomagnetic sensor, and an acceleration sensor. The microphone 1408 converts the sound input to the smart phone 1400 into an audio signal. The input device 1409 includes, for example, a touch sensor, a keypad, a keyboard, a button, or a switch configured to detect a touch on the screen of the display device 1410, and receives an operation or information input from a user. The display device 1410 includes a screen such as a liquid crystal display (LCD) and an organic light emitting diode (OLED) display, and displays an output image of the smart phone 1400. The speaker 1411 converts an audio signal output from the smart phone 1400 into sound.

[0199] The wireless communication interface 1412 supports any cellular communication scheme (such as LTE and LTE-Advanced), and performs wireless communication. The wireless communication interface 1412 may generally include, for example, a BB processor 1413 and an RF circuit 1414. The BB processor 1413 may perform, for example, encoding / decoding, modulation / demodulation, and multiplexing / demultiplexing, and perform various types of signal processing for wireless communication. Meanwhile, the RF circuit 1414 may include, for example, a mixer, a filter, and an amplifier, and transmit and receive wireless signals via an antenna 1416. The wireless communication interface 1412 may be a chip module on which the BB processor 1413 and the RF circuit 1414 are integrated. Fig.14 As shown, the wireless communication interface 1412 may include multiple BB processors 1413 and multiple RF circuits 1414. Fig.14 An example is shown in which the wireless communication interface 1412 includes a plurality of BB processors 1413 and a plurality of RF circuits 1414 , but the wireless communication interface 1412 may also include a single BB processor 1413 or a single RF circuit 1414 .

[0200] In addition, in addition to the cellular communication scheme, the wireless communication interface 1412 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 1412 can include a BB processor 1413 and an RF circuit 1414 for each wireless communication scheme.

[0201] Each of the antenna switches 1415 switches a connection destination of the antenna 1416 between a plurality of circuits (eg, circuits for different wireless communication schemes) included in the wireless communication interface 1412 .

[0202] Each of the antennas 1416 includes a single or multiple antenna elements (such as multiple antenna elements included in a MIMO antenna) and is used for the wireless communication interface 1412 to transmit and receive wireless signals. Fig.14 As shown, smartphone 1400 may include multiple antennas 1416. Fig.14 An example is shown in which the smart phone 1400 includes a plurality of antennas 1416 , but the smart phone 1400 may also include a single antenna 1416 .

[0203] In addition, the smartphone 1400 may include an antenna 1416 for each wireless communication scheme. In this case, the antenna switch 1415 may be omitted from the configuration of the smartphone 1400.

[0204] The bus 1417 connects the processor 1401, the memory 1402, the storage device 1403, the external connection interface 1404, the camera 1406, the sensor 1407, the microphone 1408, the input device 1409, the display device 1410, the speaker 1411, the wireless communication interface 1412, and the auxiliary controller 1419 to each other. Fig.14 The various blocks of the smartphone 1400 shown are supplied with power, the feed lines being partially shown as dashed lines in the figure. The auxiliary controller 1419 operates the minimum necessary functions of the smartphone 1400, for example in a sleep mode.

[0205] exist Fig.14 In the illustrated smart phone 1400, by using Figure 1 The described determination unit 120 and feedback unit 130 may be implemented by the processor 1401 or the auxiliary controller 1419. At least a portion of the functions may also be implemented by the processor 1401 or the auxiliary controller 1419. For example, the processor 1401 or the auxiliary controller 1419 may perform the function of determining to turn on or off the HARQ process with all cells in the TAG and to feed back ACK / NACK for downlink data by executing instructions stored in the memory 1402 or the storage device 1403.

[0206] (Second application example)

[0207] Fig.15 1 is a block diagram showing an example of a schematic configuration of a car navigation device 1520 to which the technology of the present disclosure can be applied. The car navigation device 1520 includes a processor 1521, a memory 1522, a global positioning system (GPS) module 1524, a sensor 1525, a data interface 1526, a content player 1527, a storage medium interface 1528, an input device 1529, a display device 1530, a speaker 1531, a wireless communication interface 1533, one or more antenna switches 1536, one or more antennas 1537, and a battery 1538.

[0208] The processor 1521 may be, for example, a CPU or a SoC, and controls a navigation function and other functions of the car navigation device 1520. The memory 1522 includes a RAM and a ROM, and stores data and a program executed by the processor 1521.

[0209] The GPS module 1524 measures the position (such as latitude, longitude and altitude) of the car navigation device 1520 using GPS signals received from GPS satellites. The sensor 1525 may include a group of sensors such as a gyro sensor, a geomagnetic sensor and an air pressure sensor. The data interface 1526 is connected to, for example, the vehicle network 1541 via a terminal not shown, and acquires data (such as vehicle speed data) generated by the vehicle.

[0210] The content player 1527 reproduces content stored in a storage medium such as a CD and a DVD, which is inserted into the storage medium interface 1528. The input device 1529 includes, for example, a touch sensor, a button, or a switch configured to detect a touch on the screen of the display device 1530, and receives an operation or information input from a user. The display device 1530 includes a screen such as an LCD or an OLED display, and displays an image of a navigation function or reproduced content. The speaker 1531 outputs a sound of a navigation function or reproduced content.

[0211] The wireless communication interface 1533 supports any cellular communication scheme (such as LTE and LTE-Advanced) and performs wireless communication. The wireless communication interface 1533 may generally include, for example, a BB processor 1534 and an RF circuit 1535. The BB processor 1534 may perform, for example, encoding / decoding, modulation / demodulation, and multiplexing / demultiplexing, and perform various types of signal processing for wireless communication. Meanwhile, the RF circuit 1535 may include, for example, a mixer, a filter, and an amplifier, and transmit and receive wireless signals via an antenna 1537. The wireless communication interface 1533 may also be a chip module on which the BB processor 1534 and the RF circuit 1535 are integrated. Fig.15 As shown, the wireless communication interface 1533 may include multiple BB processors 1534 and multiple RF circuits 1535. Fig.15 An example is shown in which the wireless communication interface 1533 includes a plurality of BB processors 1534 and a plurality of RF circuits 1535 , but the wireless communication interface 1533 may also include a single BB processor 1534 or a single RF circuit 1535 .

[0212] In addition, in addition to the cellular communication scheme, the wireless communication interface 1533 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, the wireless communication interface 1533 can include a BB processor 1534 and an RF circuit 1535.

[0213] Each of the antenna switches 1536 switches a connection destination of the antenna 1537 between a plurality of circuits included in the wireless communication interface 1533 , such as circuits for different wireless communication schemes.

[0214] Each of the antennas 1537 includes a single or multiple antenna elements (such as multiple antenna elements included in a MIMO antenna) and is used for the wireless communication interface 1533 to transmit and receive wireless signals. Fig.15 As shown, the car navigation device 1520 may include multiple antennas 1537. Fig.15 An example is shown in which the car navigation device 1520 includes a plurality of antennas 1537 , but the car navigation device 1520 may also include a single antenna 1537 .

[0215] In addition, the car navigation device 1520 may include an antenna 1537 for each wireless communication scheme. In this case, the antenna switch 1536 may be omitted from the configuration of the car navigation device 1520.

[0216] Battery 1538 is fed via a feed line to Fig.15The respective blocks of the illustrated car navigation device 1520 are supplied with electric power, and feed lines are partially illustrated as dotted lines in the figure. The battery 1538 accumulates electric power supplied from the vehicle.

[0217] exist Fig.15 In the illustrated car navigation device 1520, by using Figure 1 The determination unit 120 and the feedback unit 130 described may be implemented by the processor 1521. At least a portion of the functions may also be implemented by the processor 1521. For example, the processor 1521 may determine to turn on or off the HARQ process with all cells in the TAG and to feed back ACK / NACK for downlink data by executing instructions stored in the memory 1522.

[0218] The technology of the present disclosure may also be implemented as an in-vehicle system (or vehicle) 1540 including a car navigation device 1520, an in-vehicle network 1541, and one or more blocks in a vehicle module 1542. The vehicle module 1542 generates vehicle data (such as vehicle speed, engine speed, and fault information), and outputs the generated data to the in-vehicle network 1541.

[0219] The preferred embodiments of the present disclosure are described above with reference to the accompanying drawings, but the present disclosure is certainly not limited to the above examples. Those skilled in the art may obtain various changes and modifications within the scope of the appended claims, and it should be understood that these changes and modifications will naturally fall within the technical scope of the present disclosure.

[0220] For example, the units shown in dashed boxes in the functional block diagrams shown in the accompanying drawings all indicate that the functional units are optional in the corresponding device, and the various optional functional units can be combined in an appropriate manner to achieve the required functions.

[0221] For example, a plurality of functions included in one unit in the above embodiments may be implemented by separate devices. Alternatively, a plurality of functions implemented by a plurality of units in the above embodiments may be implemented by separate devices, respectively. In addition, one of the above functions may be implemented by a plurality of units. Needless to say, such a configuration is included in the technical scope of the present disclosure.

[0222] In this specification, the steps described in the flowchart include not only the processing performed in time series in the order described, but also the processing performed in parallel or individually rather than necessarily in time series. In addition, even in the steps processed in time series, it goes without saying that the order can be appropriately changed.

[0223] Although the embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings, it should be understood that the embodiments described above are only used to illustrate the present disclosure and do not constitute a limitation of the present disclosure. For those skilled in the art, various modifications and changes can be made to the above embodiments without departing from the essence and scope of the present disclosure. Therefore, the scope of the present disclosure is limited only by the attached claims and their equivalent meanings.

Claims

1. An electronic device comprising a processing circuit configured to: Receiving information related to a timing advance group TAG from a network side device serving the electronic device; as well as Turning on or off the HARQ process between the electronic device and all cells in the TAG according to the information related to the TAG, in, The information related to the TAG includes a timing advance command TAC related to the TAG, and The processing circuit is further configured to: Determine a value of a timing advance TA according to the TAC; When the value of the TA is greater than a predetermined threshold of the TA, shutting down the HARQ process between the electronic device and all cells in the TAG; as well as When the value of the TA is not greater than a predetermined threshold of the TA, the HARQ process between the electronic device and all cells in the TAG is started.

2. The electronic device according to claim 1, wherein: The predetermined threshold of the TA is an agreed value between the network side device and the electronic device, or Wherein, the processing circuit is further configured to: receive a predetermined threshold of the TA from the network side device.

3. The electronic device according to claim 1, wherein: The processing circuit is further configured to: In the case of starting the HARQ process between the electronic device and all cells in the TAG, when receiving data from the network side device of the cell in the TAG, feeding back ACK or NACK to the network side device; as well as In the case where the HARQ process between the electronic device and all cells in the TAG is turned off, when data is received from a network side device of a cell in the TAG, no ACK or NACK is fed back to the network side device.

4. The electronic device according to claim 3, wherein: The data includes control data and service data.

5. The electronic device according to claim 1, wherein: The processing circuit is further configured to: After turning on or off the HARQ process between the electronic device and all cells in the TAG, receiving updated information related to the TAG from the network side device; as well as The HARQ process between the electronic device and all cells in the TAG is turned off or on according to the updated information related to the TAG.

6. The electronic device according to claim 1, wherein: The processing circuit is further configured to: After turning on or off the HARQ process between the electronic device and all cells in the TAG, receiving information related to a specific HARQ process from the network side device; as well as The specific HARQ process is closed or opened according to the information related to the specific HARQ process.

7. The electronic device according to claim 6, wherein: The information related to the specific HARQ process is carried by low-layer signaling.

8. The electronic device according to claim 7, wherein: The low layer signaling includes DCI.

9. The electronic device according to claim 1, wherein: The electronic device has one or more serving cells, the one or more serving cells are divided into one or more TAGs, and The processing circuit is further configured to: receive information related to each TAG from a network side device of a primary service cell of the electronic device.

10. An electronic device comprising a processing circuit configured to: Generate information related to a timing advance group TAG of a user equipment served by the electronic device; as well as sending the information related to the TAG to the user equipment to instruct the user equipment to start or stop the HARQ process between the user equipment and all cells in the TAG, in, The processing circuit is further configured to: When the value of the same timing advance TA between the user equipment and all cells in the TAG is greater than a predetermined threshold of the TA, it is determined to close the HARQ process between the user equipment and all cells in the TAG; when the value of the TA is not greater than the predetermined threshold of the TA, it is determined to open the HARQ process between the user equipment and all cells in the TAG; as well as The information related to the TAG is generated according to the determination result.

11. The electronic device according to claim 10, wherein: The information related to the TAG includes a timing advance command TAC related to the TAG, and the TAC indicates a same timing advance value TA between the user equipment and all cells in the TAG.

12. The electronic device according to claim 10, wherein: The processing circuit is further configured to: Updating information related to the TAG of the user equipment; and Send updated information to the user equipment to instruct the user equipment to close or open the HARQ process between the user equipment and all cells in the TAG.

13. The electronic device according to claim 10, wherein: The processing circuit is further configured to: Determine to turn on or off a specific HARQ process among the HARQ processes between the user equipment and all cells in the TAG; and Information related to the specific HARQ process is sent to the user equipment to instruct the user equipment to turn on or off the specific HARQ process.

14. The electronic device according to claim 13, wherein: The processing circuit is further configured to: The information related to the specific HARQ process is carried by low-layer signaling.

15. The electronic device according to claim 14, wherein: The low layer signaling includes DCI.

16. The electronic device according to claim 10, wherein: The user equipment has one or more serving cells, the one or more serving cells are divided into one or more TAGs, and the electronic device is a network side device of a primary serving cell of the user equipment.

17. A wireless communication method performed by an electronic device, comprising: Receiving information related to a timing advance group TAG from a network side device serving the electronic device; as well as Turning on or off the HARQ process between the electronic device and all cells in the TAG according to the information related to the TAG, The information related to the TAG includes a timing advance command TAC related to the TAG, and Turning on or off the HARQ process between the electronic device and all cells in the TAG includes: Determine a value of a timing advance TA according to the TAC; When the value of the TA is greater than a predetermined threshold of the TA, shutting down the HARQ process between the electronic device and all cells in the TAG; and When the value of the TA is not greater than a predetermined threshold of the TA, the HARQ process between the electronic device and all cells in the TAG is started.

18. The wireless communication method according to claim 17, wherein: The predetermined threshold of the TA is an agreed value between the network side device and the electronic device, or The wireless communication method further includes: receiving a predetermined threshold of the TA from the network side device.

19. The wireless communication method according to claim 17, wherein: Starting the HARQ process between the electronic device and all cells in the TAG includes: when receiving data from a network side device of a cell in the TAG, feeding back ACK or NACK to the network side device; and Turning off the HARQ process between the electronic device and all cells in the TAG includes: when receiving data from a network side device of a cell in the TAG, not feeding back ACK or NACK to the network side device.

20. The wireless communication method according to claim 19, wherein: The data includes control data and service data.

21. The wireless communication method according to claim 17, wherein: The wireless communication method further comprises: After turning on or off the HARQ process between the electronic device and all cells in the TAG, receiving updated information related to the TAG from the network side device; and The HARQ process between the electronic device and all cells in the TAG is turned off or on according to the updated information related to the TAG.

22. The wireless communication method according to claim 17, wherein: The wireless communication method further comprises: After turning on or off the HARQ process between the electronic device and all cells in the TAG, receiving information related to a specific HARQ process from the network side device; and The specific HARQ process is closed or opened according to the information related to the specific HARQ process.

23. The wireless communication method according to claim 22, wherein: The information related to the specific HARQ process is carried by low-layer signaling.

24. The wireless communication method according to claim 23, wherein: The low layer signaling includes DCI.

25. The wireless communication method according to claim 17, wherein: The electronic device has one or more serving cells, the one or more serving cells are divided into one or more TAGs, and The wireless communication method further includes: receiving information related to each TAG from a network side device of a primary service cell of the electronic device.

26. A wireless communication method performed by an electronic device, comprising: Generate information related to a timing advance group TAG of a user equipment served by the electronic device; as well as sending the information related to the TAG to the user equipment to instruct the user equipment to start or stop the HARQ process between the user equipment and all cells in the TAG, Wherein, the wireless communication method further includes: When the value of the same timing advance TA between the user equipment and all cells in the TAG is greater than a predetermined threshold value of TA, determine to close the HARQ process between the user equipment and all cells in the TAG; when the value of TA is not greater than the predetermined threshold value of TA, determine to open the HARQ process between the user equipment and all cells in the TAG; and The information related to the TAG is generated according to the determination result.

27. The wireless communication method according to claim 26, wherein: The information related to the TAG includes a timing advance command TAC related to the TAG, and the TAC indicates a same timing advance value TA between the user equipment and all cells in the TAG.

28. The wireless communication method according to claim 26, wherein: The wireless communication method further comprises: Updating information related to the TAG of the user equipment; and Send updated information to the user equipment to instruct the user equipment to close or open the HARQ process between the user equipment and all cells in the TAG.

29. The wireless communication method according to claim 26, wherein: The wireless communication method further comprises: Determine to turn on or off a specific HARQ process among the HARQ processes between the user equipment and all cells in the TAG; and Information related to the specific HARQ process is sent to the user equipment to instruct the user equipment to turn on or off the specific HARQ process.

30. The wireless communication method according to claim 29, wherein: The information related to the specific HARQ process is carried by low-layer signaling.

31. The wireless communication method according to claim 30, wherein: The low layer signaling includes DCI.

32. The wireless communication method according to claim 26, wherein: The user equipment has one or more serving cells, the one or more serving cells are divided into one or more TAGs, and the electronic device is a network side device of a primary serving cell of the user equipment.

33. A computer-readable storage medium comprising executable computer instructions, which, when executed by a computer, cause the computer to perform the wireless communication method according to any one of claims 17-32.

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