Electronic devices, methods, and storage media for wireless communication systems

Abstract

This disclosure relates to electronic devices, methods, and storage media for wireless communication systems. Various embodiments for setting downlink-to-uplink handover protection intervals are described. One embodiment relates to electronic devices for a base station used in a time-division duplex communication system, the electronic devices including processing circuitry. The processing circuitry is configured to: set a first downlink-to-uplink handover protection interval for a first terminal device in a first cell, and set a second downlink-to-uplink handover protection interval for a second terminal device in the first cell, wherein the second downlink-to-uplink handover protection interval is different from the first downlink-to-uplink handover protection interval. The first downlink-to-uplink handover protection interval is associated with a first resource, and the second downlink-to-uplink handover protection interval is associated with a second resource, the first resource and the second resource having resource orthogonality.

Description

Technical Field

[0001] This disclosure generally relates to wireless communication systems and methods, and more particularly to techniques for setting downlink-to-uplink handover protection intervals. Background Technology

[0002] The development and application of wireless communication technology have unprecedentedly satisfied people's voice and data communication needs. To provide higher communication quality and capacity, wireless communication systems employ various technologies at different levels. In terms of duplex technology, there exists a time division duplex (TDD) mode. According to TDD mode, uplink and downlink can use the same frequency band, and are differentiated in time (i.e., time division). For example, in a TDD wireless communication system, time resources can be allocated between uplink and downlink in various proportions, and uplink and downlink transmissions are performed on the same frequency channel (e.g., carrier) based on the allocated time resources, thus distinguishing between uplink and downlink. Correspondingly, there is a guard interval for switching from downlink transmission to uplink transmission. Summary of the Invention

[0003] A first aspect of this disclosure relates to electronic equipment for a base station used in a time-division duplex communication system, the electronic equipment including processing circuitry. The processing circuitry is configured to set a first downlink-to-uplink handover protection interval for a first terminal device in a first cell; and to set a second downlink-to-uplink handover protection interval for a second terminal device in the first cell, wherein the second downlink-to-uplink handover protection interval is different from the first downlink-to-uplink handover protection interval. The first downlink-to-uplink handover protection interval is associated with a first resource, and the second downlink-to-uplink handover protection interval is associated with a second resource, the first resource and the second resource having resource orthogonality.

[0004] A second aspect of this disclosure relates to electronic equipment for a first terminal device used in a time-division duplex communication system, the electronic equipment including processing circuitry. The processing circuitry is configured to receive a first downlink-to-uplink handover protection interval set by a base station, wherein the first downlink-to-uplink handover protection interval is different from a second downlink-to-uplink handover protection interval set by the base station for a second terminal device in the same cell. The first downlink-to-uplink handover protection interval is associated with a first resource, and the second downlink-to-uplink handover protection interval is associated with a second resource, the first resource and the second resource having resource orthogonality.

[0005] A third aspect of this disclosure relates to a method for a time-division duplex communication system, comprising a base station: setting a first downlink-to-uplink handover protection interval for a first terminal device in a first cell; and setting a second downlink-to-uplink handover protection interval for a second terminal device in the first cell, wherein the second downlink-to-uplink handover protection interval is different from the first downlink-to-uplink handover protection interval. The first downlink-to-uplink handover protection interval is associated with a first resource, and the second downlink-to-uplink handover protection interval is associated with a second resource, wherein the first resource and the second resource are resource orthogonal.

[0006] A fourth aspect of this disclosure relates to a method for a time-division duplex communication system, comprising a first terminal device receiving a first downlink-to-uplink handover protection interval set by a base station, wherein the first downlink-to-uplink handover protection interval is different from a second downlink-to-uplink handover protection interval set by the base station for a second terminal device in the same cell. The first downlink-to-uplink handover protection interval is associated with a first resource, and the second downlink-to-uplink handover protection interval is associated with a second resource, wherein the first resource and the second resource are resource orthogonal.

[0007] A fifth aspect of this disclosure relates to a computer-readable storage medium storing one or more instructions. In some embodiments, the one or more instructions, when executed by one or more processors of an electronic device, cause the electronic device to perform methods according to various embodiments of this disclosure.

[0008] A sixth aspect of this disclosure relates to an apparatus for wireless communication, including components or units for performing operations of various methods according to embodiments of this disclosure.

[0009] The above overview is provided to summarize some exemplary embodiments to provide a basic understanding of the aspects of the subject matter described herein. Therefore, the features described above are merely examples and should not be construed as narrowing the scope or spirit of the subject matter described herein in any way. Other features, aspects, and advantages of the subject matter described herein will become apparent from the following detailed description, taken in conjunction with the accompanying drawings. Attached Figure Description

[0010] A better understanding of this disclosure can be obtained by considering the following detailed description of the embodiments in conjunction with the accompanying drawings. The same or similar reference numerals are used in the drawings to denote the same or similar parts. The drawings, together with the following detailed description, are incorporated in and form a part of this specification to illustrate embodiments of the disclosure and explain the principles and advantages of the disclosure. Wherein:

[0011] Figure 1 An example wireless communication system according to an embodiment of this disclosure is shown.

[0012] Figure 2A and Figure 2B The timing advance and downlink-to-uplink handover protection intervals in a wireless communication system are shown respectively.

[0013] Figure 3A and Figure 3B Exemplary electronic devices for base stations and terminal devices according to embodiments of the present disclosure are shown respectively.

[0014] Figures 4A to 4D Examples of resources in a wireless communication system according to embodiments of the present disclosure are shown respectively.

[0015] Figures 5A to 9 An example configuration of the downlink-to-uplink handover protection interval according to an embodiment of this disclosure is shown.

[0016] Figure 10 An example flow for setting the downlink-to-uplink handover protection interval according to an embodiment of this disclosure is shown.

[0017] Figure 11 and Figure 12 An example method for communication according to an embodiment of this disclosure is shown.

[0018] Figure 13 This is a block diagram of an example structure of a personal computer that may be used as an information processing device in embodiments of this disclosure.

[0019] Figure 14 This is a block diagram illustrating a first example of a schematic configuration of a gNB to which the techniques of this disclosure can be applied.

[0020] Figure 15 This is a block diagram illustrating a second example of a schematic configuration of a gNB to which the techniques of this disclosure can be applied.

[0021] Figure 16 This is a block diagram illustrating an example of a schematic configuration of a smartphone to which the techniques of this disclosure can be applied.

[0022] Figure 17 This is a block diagram illustrating an example of a schematic configuration of a car navigation device to which the techniques of this disclosure can be applied.

[0023] While the embodiments described in this disclosure may be readily modified and alternatively implemented, specific embodiments thereof are shown by way of example in the accompanying drawings and are described in detail herein. However, it should be understood that the drawings and the detailed description thereof are not intended to limit the embodiments to the specific forms disclosed, but rather are intended to cover all modifications, equivalents, and alternatives that fall within the spirit and scope of the claims. Detailed Implementation

[0024] The following description illustrates representative applications of the devices and methods described herein. These examples are provided merely to provide context and aid in understanding the described embodiments. Therefore, it will be apparent to those skilled in the art that the embodiments described below can be practiced without some or all of the specific details provided. In other instances, well-known process steps have not been described in detail to avoid unnecessarily obscuring the described embodiments. Other applications are also possible, and the scope of this disclosure is not limited to these examples.

[0025] Figure 1 An exemplary wireless communication system according to an embodiment is shown. It should be understood that... Figure 1 Only one of the many types and possible arrangements of wireless communication systems is shown; embodiments of this disclosure may be implemented in any of the various systems as needed.

[0026] like Figure 1 As shown, the wireless communication system 100 includes a base station 120 and one or more terminal devices 110A, 110B to 110N (which may also be collectively referred to as terminal devices 110). The base station and terminal devices can be configured to communicate via a transmission medium. The base station 120 can be configured to communicate with a network (e.g., the core network of a cellular service provider, a telecommunications network such as the Public Switched Telephone Network (PSTN), and / or the Internet). Thus, the base station 120 facilitates communication between terminal devices 110A to 110N and / or between terminal devices 110A to 110N and the network.

[0027] It should be understood that the term "base station" in this document has the full breadth of its usual meaning and includes at least a wireless communication station that is part of a wireless communication system or radio system to facilitate communication. Examples of base stations may include, but are not limited to, the following: at least one of a Base Transceiver Station (BTS) and a Base Station Controller (BSC) in a GSM system; at least one of a Radio Network Controller (RNC) and a Node B in a WCDMA system; an eNB in ​​LTE and LTE-Advanced systems; an Access Point (AP) in WLAN and WiMAX systems; and corresponding network nodes in communication systems that are to be developed or are under development (e.g., gNB, eLTE eNB, etc. in 5G New Radio (NR) systems). Some of the functions of a base station in this document can also be implemented as an entity that controls communication in D2D, M2M, and V2V communication scenarios, or as an entity that plays a role in spectrum coordination in cognitive radio communication scenarios.

[0028] In this article, the term "terminal" is used in its full breadth of its usual meaning; for example, a terminal can be a mobile station (MS), user equipment (UE), etc. A terminal can be implemented as a device such as a mobile phone, vehicle, handheld device, media player, computer, laptop, or tablet, or virtually any type of wireless device. In some cases, a terminal can communicate using multiple wireless communication technologies. For example, a terminal can be configured to communicate using two or more of GSM, UMTS, CDMA2000, WiMAX, LTE, LTE-A, WLAN, NR, Bluetooth, etc. In some cases, a terminal can also be configured to communicate using only one wireless communication technology.

[0029] The coverage area of ​​base station 120 can be referred to as a cell. Base station 120 and other similar base stations (not shown) operating according to one or more cellular communication technologies can provide continuous or near-continuous communication signal coverage to terminal device 110 and similar devices over a wide geographical area. Terminal devices 110A and 110B can be located in the same cell of base station 120. In embodiments, base station 120 can employ beamforming technology to communicate with terminal device 110. Beamforming can provide beamforming gain to compensate for propagation loss of wireless signals by increasing the directivity of antenna transmission and / or reception. This is advantageous for wireless communication systems such as NR (New Radio) systems operating in the millimeter-wave (mmWave) band, where signal propagation loss is high. Figure 1 In the example, based on the matching of the transmit and receive beams between the base station and the terminal, the base station 120 uses beam b1 to communicate with the terminal 110A and uses beam b2 to communicate with the terminal 110B.

[0030] In this embodiment, the wireless communication system 100 may be a wireless communication system employing time division duplex (TDD) technology. Unlike frequency division duplex (FDD) systems, which distinguish uplink and downlink by different frequency bands, in a TDD system, both uplink and downlink transmissions occur in the same frequency band, but they occur at different times. Figure 1 The right side shows an example of the signal format of a physical channel in a TDD system. A physical channel can include radio frames, each of which can have a certain size. A single radio frame can consist of multiple (e.g., two) subframes, each subframe can include multiple time slots, and each time slot can include multiple symbols (e.g., OFDM symbols). In a physical channel, time slots can be allocated proportionally for uplink or downlink transmission. Figure 1 In the example, the first 3 time slots in a single subframe are allocated for downlink transmission, and the last 4 time slots are allocated for uplink transmission.

[0031] It should be understood that Figure 1 The signal format described herein is merely one example arrangement of time slots and symbols in a physical channel. Embodiments of this disclosure are not limited in this respect. As wireless communication systems evolve, the constituent units or hierarchical structure of the signal format may change, but such changes do not affect the use of embodiments of this disclosure.

[0032] In an embodiment, the base station 120 can interact with multiple terminal devices 110 via at least one of higher-layer signaling (e.g., Radio Resource Control (RRC) signaling) and physical-layer signaling (e.g., Downlink Control Information (DCI) and Uplink Control Information (UCI) in an NR system) to configure the transmission parameters of the corresponding terminal devices 110.

[0033] The following combination Figure 2A and Figure 2B Explain the concepts of uplink timing advance (TA) and the guard period (GP) during downlink-to-uplink transition in a TDD system. Generally, the base station's time is synchronized with the system time, and the base station's time slot sequence is aligned with the time slot sequence in the system's physical channel. However, due to the physical distance between the base station and each terminal device, there is a corresponding signal propagation delay. This propagation delay causes the time slot sequences on the terminal device side and the base station side to be misaligned. For example... Figure 2A As shown, assuming the signal propagation delay between base station 120 and terminal device 110A is δ, then: In the downlink, the time slot sequence of terminal device 110A is delayed by δ relative to base station 120; in the uplink, in order for its transmitted uplink signal to be received at the corresponding uplink time slot sequence of base station 120 (this is necessary for the terminal device to maintain synchronization with the base station), its uplink time slot sequence should be advanced by δ relative to base station 120. Therefore, the advance of the uplink time slot sequence of terminal device 110A relative to its delayed downlink time slot sequence is called timing advance. Figure 2A In the example, the advance value is twice the delay value δ.

[0034] like Figure 2AAs shown, the uplink transmission by the terminal device, which is based on a timed advance, will collide with the downlink reception, i.e., they will coincide in time. Due to limitations such as hardware performance, terminal devices in TDD mode generally do not have the ability to simultaneously perform downlink reception and uplink transmission. To prevent the delayed downlink time slot sequence from colliding with the advanced uplink time slot sequence, the uplink time slot sequence needs to be shifted backward in the system's physical channel. This is manifested by inserting a guard interval after the downlink time slot sequence and before the uplink time slot sequence, such as... Figure 2B As shown. With a sufficiently large guard interval, even if the uplink timeslot sequence of the terminal device is δ ahead of the uplink timeslot sequence of the base station 120, the above-mentioned collision will not occur.

[0035] Traditionally, a uniform protection interval can be set at the cell level. For example, this uniform protection interval can be set based on the latency of the terminal device with the greatest propagation latency to the base station. Figure 2B In the example, the protection interval is set based on the delay δ' of the terminal device 110B. It is easy to understand that in order to avoid collisions, the length Lgp of this protection interval should be greater than or equal to twice the delay δ'.

[0036] exist Figure 2B Under the unified protection interval, in order to prevent collisions with terminal device 110B, which has the largest propagation delay with the base station, terminal device 110A, which has a smaller propagation delay with the base station, cannot transmit or receive signals within a time period of Lgp-2δ. For the system, the inability to transmit or receive signals within such a long protection interval means the idleness and waste of time and / or frequency resources.

[0037] Therefore, instead of a uniform protection interval, terminal device-specific protection intervals can be set in the embodiments of this disclosure. Each terminal device can have an appropriate protection interval (e.g., an appropriate size and slot location), thereby enabling each terminal device to make greater use of time and / or frequency resources and improve resource utilization efficiency.

[0038] Figure 3A An exemplary electronic device for a base station side is shown according to an embodiment, wherein the base station can be used in a TDD wireless communication system. Figure 3A The illustrated electronic device 300 may include various units to implement various embodiments according to this disclosure. The electronic device 300 may include a guard interval determination unit 302 and a transceiver unit 304. In different embodiments, the electronic device 300 may be implemented as... Figure 1 The base station 120 or a portion thereof may be implemented as a device (e.g., a base station controller) for controlling the base station 120 or otherwise associated with the base station 120. The various operations described below in conjunction with the base station may be implemented by units 302 and 304 of the electronic device 300 or other possible units.

[0039] In an embodiment, the protection interval determination unit 302 can be configured to set a first downlink-to-uplink transition protection interval for a first terminal device in the first cell, and to set a second downlink-to-uplink transition protection interval for a second terminal device in the first cell, wherein the second downlink-to-uplink transition protection interval is different from the first downlink-to-uplink transition protection interval. In an embodiment, the first downlink-to-uplink transition protection interval is associated with a first resource, and the second downlink-to-uplink transition protection interval is associated with a second resource, wherein the first resource and the second resource have resource orthogonality.

[0040] Reference Figure 1 For example, different first and second downlink-to-uplink switching protection intervals can be set for terminal devices 110A and 110B in the same cell of base station 120. Since beams b1 and b2 are used for communication with terminal devices 110A and 110B respectively, the different beams b1 and b2 can be considered orthogonal resources, and therefore the different first and second downlink-to-uplink switching protection intervals can be set through beams b1 and b2. Alternatively or additionally, the frequency resources used by terminal devices 110A and 110B can be orthogonal. For example, their frequency resources can be located in different frequency bands or allocated to terminal devices 110A and 110B in an orthogonal frequency division multiplexing manner. In such a manner, the different first and second downlink-to-uplink switching protection intervals can be set through different or orthogonal frequency division multiplexing frequency resources.

[0041] Alternatively or additionally, the protection interval determination unit 302 may be configured to set a first downlink-to-uplink transition protection interval for the first terminal device and a third downlink-to-uplink transition protection interval for the first terminal device, wherein the third downlink-to-uplink transition protection interval is different from the first downlink-to-uplink transition protection interval. In an embodiment, the first downlink-to-uplink transition protection interval is associated with a first resource, and the third downlink-to-uplink transition protection interval is associated with a third resource, wherein the first resource and the third resource have resource orthogonality.

[0042] Reference Figure 1For example, different first and third downlink-to-uplink switching protection intervals can be set for terminal device 110A of base station 120. In some cases, multiple beams of base station 120 may be used for communication with a single terminal device. Assuming that beams b1 and b1' are both used for communication with terminal device 110A, different beams b1 and b1' can be considered orthogonal resources, and therefore different first and third downlink-to-uplink switching protection intervals can be set through beams b1 and b1'. Alternatively or additionally, terminal device 110A can use multiple orthogonal frequency resources. For example, these frequency resources may be located in different frequency bands or orthogonal frequency division multiplexing. In such an approach, different first and third downlink-to-uplink switching protection intervals can be set through different or orthogonal frequency division multiplexing frequency resources.

[0043] In this embodiment, the transceiver unit 304 can be configured to perform control to send and receive necessary information with various terminal devices. For example, the transceiver unit 304 can be configured to perform control to send and receive various signaling and data.

[0044] Figure 3B An exemplary electronic device for a terminal device side is shown according to an embodiment, wherein the terminal device can operate in TDD mode. Figure 3B The illustrated electronic device 350 may include various units to implement various embodiments according to this disclosure. The electronic device 350 may include a guard interval processing unit 352 and a transceiver unit 354. In different embodiments, the electronic device 350 may be implemented as... Figure 1 Any terminal device or part thereof. The various operations described below in conjunction with the terminal device can be implemented by units 352 and 354 of the electronic device 350 or other possible units.

[0045] exist Figure 3B In the example, the guard interval processing unit 352 can be configured to receive a first downlink-to-uplink transition guard interval set by the base station, wherein the first downlink-to-uplink transition guard interval is different from the second downlink-to-uplink transition guard interval set by the base station for a second terminal device in the same cell. In the embodiment, the first downlink-to-uplink transition guard interval is associated with a first resource, the second downlink-to-uplink transition guard interval is associated with a second resource, and the first resource and the second resource have resource orthogonality.

[0046] Reference Figure 1For example, terminal devices 110A and 110B can receive different first and second downlink-to-uplink switching protection intervals from base station 120, respectively. The different first and second downlink-to-uplink switching protection intervals can be set by beams b1 and b2 for terminal devices 110A and 110B, or the different first and second downlink-to-uplink switching protection intervals can be set by different or orthogonal frequency division multiplexing frequency resources.

[0047] Alternatively or additionally, the guard interval processing unit 352 may be configured to receive a first and a third downlink-to-uplink transition guard interval set by the base station, wherein the third downlink-to-uplink transition guard interval is different from the first downlink-to-uplink transition guard interval. In an embodiment, the first downlink-to-uplink transition guard interval is associated with a first resource, and the third downlink-to-uplink transition guard interval is associated with a third resource, wherein the first resource and the third resource have resource orthogonality.

[0048] Reference Figure 1 For example, terminal device 110A can receive different first and third downlink-to-uplink switching protection intervals configured for it from base station 120. The different first and third downlink-to-uplink switching protection intervals can be configured by beams b1 and b1' for terminal device 110A, or the different first and third downlink-to-uplink switching protection intervals can be configured by different or orthogonal frequency division multiplexing frequency resources.

[0049] exist Figure 3B In the example, transceiver unit 354 can be configured to perform control to send and receive necessary information with the base station. For example, transceiver unit 354 can be configured to perform control to send and receive various signaling and data.

[0050] In some embodiments, electronic devices 300 and 350 may be implemented at the chip level, or they may be implemented at the device level by including other external components. For example, each electronic device may function as a communication device as a complete unit.

[0051] It should be noted that the above-mentioned units are merely logical modules divided according to their specific functions, and are not intended to limit the specific implementation method. For example, they can be implemented in software, hardware, or a combination of both. In actual implementation, the above-mentioned units can be implemented as independent physical entities, or they can be implemented by a single entity (e.g., a processor (CPU or DSP, etc.), integrated circuit, etc.). The processing circuit can refer to various implementations of digital circuit systems, analog circuit systems, or mixed-signal (combination of analog and digital) circuit systems that perform functions in a computing system. The processing circuit can include circuits such as integrated circuits (ICs), application-specific integrated circuits (ASICs), portions or circuits of a single processor core, the entire processor core, a single processor, programmable hardware devices such as field-programmable gate arrays (FPGAs), and / or systems including multiple processors.

[0052] The above is for reference only. Figure 3A and Figure 3B An exemplary electronic device and the operations performed according to an embodiment have been briefly described. Further details of these operations will be described below.

[0053] In some embodiments, by setting different protection intervals and associating each protection interval with a corresponding orthogonal resource, different downlink-to-uplink conversion protection intervals can be set for different terminal devices, and / or multiple downlink-to-uplink conversion protection intervals can be set for a single terminal device. The following is combined with... Figures 4A to 4D Describes an example of orthogonal resources according to an embodiment.

[0054] In some embodiments, orthogonal resources can be different beams. Figure 4A This illustrates three different beams, bx, by, and bz, within the same cell. These three beams have different directions and can be at the same beam hierarchy. For example, in... Figure 4A All three beams are thin beams. Each of these three beams can correspond to an associated guard interval, which can be the same or different. When beams bx, by, and bz are used for different terminal devices, the guard interval values ​​associated with the beams are valid for the respective terminal devices. In different beam pointing and arrangements, there may be more than one beam (e.g., beams bx and by) serving a single terminal device. In this case, the guard interval values ​​associated with beams bx and by are both valid for that single terminal device.

[0055] Figure 4B This illustrates two different beams, bw and bt, within the same cell. These two beams have roughly the same direction of travel but are at different beam levels. For example, in... Figure 4BThe medium beam (bw) is a coarse beam, and the beam (bt) is a fine beam. These two beams can each have associated guard intervals, which can be the same or different. When beams bw and t are used for different terminal devices, the guard interval values ​​associated with the beams are valid for the respective terminal devices. In various beam pointing and arrangements, there can be more than one beam (e.g., beams bw and t) serving a single terminal device. In this case, the guard interval values ​​associated with both beams bw and t are valid for that single terminal device.

[0056] In some embodiments, orthogonal resources can be different frequency resources. Figure 4C Resource block sets 1 and 2 allocated for the same cell are shown. Sets 1 and 2 may include resource blocks located in different subcarriers or in different frequency bands. Sets 1 and 2 may each correspond to an associated guard interval, the guard interval values ​​of which may be the same or different. When sets 1 and 2 are used for different terminal devices, the guard interval values ​​associated with the resource block sets are valid for the respective terminal devices. In different resource allocations, there may be more than one resource block set used for a single terminal device. In this case, the guard interval values ​​associated with these resource block sets are all valid for that single terminal device.

[0057] Figure 4D This illustrates a scenario where multiple resource block sets are allocated to a single terminal device within the same cell. These resource blocks can be, for example, Bandwidth Parts (BWPs) in an NR system. NR systems can support bandwidths from 5MHz to 400MHz. Large bandwidths correspond to high sampling rates and high power consumption, which most terminal devices may find difficult to support, such as 50MHz, 100MHz, 200MHz, or 400MHz. Alternatively, to reduce the requirements on the terminal device, it can operate within the corresponding BWP within a larger bandwidth. Figure 4D In the example, three bandwidth sections, BWP1 to BWP3, are configured. Each of BWP1 to BWP3 can have an associated protection interval, and these interval values ​​can be the same or different. When BWP1 to BWP3 are used for different terminal devices, the protection interval values ​​associated with each of them are valid for that specific terminal device. When BWP1 to BWP3 are used for a single terminal device, the protection interval values ​​associated with each of them are valid for that single terminal device.

[0058] The above description of an example of orthogonal resources, combining beam and frequency resource blocks, illustrates this concept. In embodiments, orthogonal resources are not limited to this; for example, they could be other resources that differ in time or space. Furthermore, resource orthogonality is defined as resource orthogonality exceeding a threshold level (if not perfectly orthogonal).

[0059] Figure 5A An exemplary guard interval setting according to an embodiment is illustrated. In some embodiments, there are signal formats for physical channels at the terminal device level in the system. The base station synchronizes with the corresponding terminal device based on each signal format to achieve alignment between the base station and the terminal device at the time slot or symbol level. Figure 5A As shown, terminal devices 110A and 110B are configured with different signal formats 550 and 560. Signal formats 550 and 560 include a repeating downlink time slot sequence, a guard interval, and an uplink time slot sequence. Figure 5A Only one cycle of the downlink time slot sequence, guard interval, and uplink time slot sequence is shown. In this example, the cycle could correspond to one or more subframes, one or more time slots, etc., in a TDD system.

[0060] exist Figure 5A In the example, one difference between signal formats 550 and 560 is the size of the guard intervals they contain. Different guard interval sizes can be associated with different resources of terminal devices 110A and 110B, respectively. In the embodiment, the resources used for the different terminal devices need to be orthogonal. For example, this resource orthogonality is greater than a threshold level (if not perfectly orthogonal). Resource orthogonality can be achieved at least through different beams, different frequency resources, or a combination of both.

[0061] For example, terminal devices 110A and 110B communicate with base station 120 via beams b1 and b2, respectively. Under these two beams, the signal propagation delay δ between terminal device 110A and base station 120 is less than the signal propagation delay δ' between terminal device 110B and base station 120. Thus, the protection interval for terminal device 110A can be less than that for terminal device 110B. Since base station 120 communicates with terminal devices 110A and 110B via different beams (i.e., orthogonal resources), communication with terminal devices 110A and 110B can proceed normally even if the signal formats are not completely identical. It should be understood that, to prevent downlink reception and uplink transmission collisions of the terminal devices, the protection interval should be greater than or equal to twice the propagation delay of the terminal device.

[0062] For example, terminal devices 110A and 110B communicate with base station 120 through different frequency resources. These different frequency resources can be different frequency resource blocks, which can be different subcarriers or located in different frequency bands. If the signal propagation delay δ between terminal device 110A and base station 120 is less than the signal propagation delay δ' between terminal device 110B and base station 120, the guard interval of terminal device 110A can also be set to be less than the guard interval of terminal device 110B. Since 120 communicates with terminal devices 110A and 110B through different frequency resources (i.e., orthogonal resources), communication with terminal devices 110A and 110B can proceed normally even if the signal formats are not completely identical. It should be understood that to prevent downlink reception and uplink transmission collisions of the terminal devices, the guard interval should be greater than or equal to twice the propagation delay of the terminal device.

[0063] exist Figure 5A In this system, it is not necessary to configure a large protection interval for the entire cell based on a large propagation delay δ'. This allows each terminal device (especially terminal device 110A) to transmit and receive signals for a longer period, ensuring that downlink reception and uplink transmission do not collide. Therefore, setting a protection interval at the terminal device level can significantly improve system resource utilization efficiency. In maritime communication, there are terminal devices located far from the base station (e.g., 20km), whose propagation delays may be much longer than those of other terminal devices. According to embodiments of this disclosure, it is not necessary to configure protection intervals for other terminal devices based on this longer propagation delay, thereby improving the resource utilization efficiency of other terminal devices.

[0064] Figure 5B An additional exemplary guard interval setting according to an embodiment is shown. In this embodiment, multiple physical channel signal formats exist in the system for the same terminal device. The base station needs to be synchronized with the terminal device for each signal format so that the base station and the terminal device are aligned at the time slot or symbol level for each signal format. Figure 5B As shown, the terminal device 110A is configured with several different signal formats 510 and 520. Signal formats 510 and 520 include repeating downlink time slot sequences, guard intervals, and uplink time slot sequences. Figure 5B Only one cycle of the downlink time slot sequence, guard interval, and uplink time slot sequence is shown. In this example, the cycle could correspond to one or more subframes, one or more time slots, etc., in a TDD system.

[0065] exist Figure 5BIn the example, one difference between signal formats 510 and 520 is the size of the guard intervals they contain. Different guard interval sizes can be associated with different resources of terminal device 110A. In this embodiment, the different resources used for terminal device 110A need to be orthogonal. For example, this resource orthogonality is greater than a threshold level (if not perfectly orthogonal). Resource orthogonality can be achieved at least through different beams, different frequency resources, or a combination of both.

[0066] For example, terminal device 110A can communicate with base station 120 via two beams, b1 and b2. These two beams may be configured with different associated guard intervals, allowing terminal device 110A to communicate with base station 120 using different signal formats. Because 120 communicates with terminal device 110A via different beams (i.e., orthogonal resources), communication with terminal device 110A can proceed normally even if it uses multiple signal formats that are not entirely consistent. It should be understood that to prevent downlink reception and uplink transmission collisions of the terminal device, the guard interval under different signal formats should be greater than or equal to twice the propagation delay of the terminal device.

[0067] For example, terminal device 110A can communicate with base station 120 through different frequency resources. Frequency resources can be frequency resource blocks, and different resource blocks can be different subcarriers or located in different frequency bands. Different resource blocks may be configured with associated different guard intervals, so terminal device 110A can use different signal formats to communicate with base station 120. Since base station 120 communicates with terminal device 110A through different frequency resources (i.e., orthogonal resources), communication with terminal device 110A can proceed normally even if terminal device 110A uses multiple signal formats that are not entirely consistent. It should be understood that, to prevent downlink reception and uplink transmission collisions of the terminal device, the guard interval under different signal formats should be greater than or equal to twice the propagation delay of the terminal device.

[0068] exist Figure 5B In this system, different resource blocks do not need to be associated with the same protection interval. Instead, some resource blocks can have smaller protection intervals, allowing them to be utilized for longer periods. When these resource blocks are used on the same terminal device, the terminal device can transmit and receive signals for longer periods, thus significantly improving system resource utilization efficiency.

[0069] In the embodiments, the protection intervals of different terminal devices or multiple protection intervals of the same terminal device may have different sizes, and the multiple protection intervals may not be aligned in time. Figure 6 Examples of different protection intervals according to embodiments are shown. Figure 6As shown, the guard interval size varies across different signal formats. Of course, as mentioned earlier, the guard interval should be greater than or equal to twice the propagation delay of the corresponding terminal device to prevent uplink transmission and downlink reception collisions. Under this constraint, transmission opportunities can be increased or decreased by reducing or increasing the guard interval size to meet actual service requirements. Taking terminal device 110A as an example, its propagation delay is δ, therefore its guard interval length Lgp ≥ 2 × δ. Assuming the subcarrier spacing of the system is Δf, the number of OFDM symbols N corresponding to its guard interval is greater than or equal to (2 × δ × Δf) rounded to the nearest integer.

[0070] Because base stations maintain synchronization with terminal devices for different signal formats, the guard interval can be located anywhere within the different signal formats. Figure 6 In signal format 620, the guard interval is biased towards the uplink time slot sequence, which means more downlink transmission opportunities and is suitable for services with high download demand (such as cloud file downloads and high-definition video playback). In signal format 630, the guard interval is biased towards the downlink time slot sequence, which means more uplink transmission opportunities and is suitable for services with high upload demand (such as cloud file uploads and surveillance video backhaul). In signal format 640, the guard interval is in the middle relative to the uplink and downlink time slot sequences, which means a more balanced uplink and downlink transmission opportunity. The resource utilization rate of each of signal formats 620 to 640 is greater than that of the baseline signal format 610.

[0071] The following combination Figure 7 This describes how a guard interval according to embodiments of the present disclosure is applied to the signal format of a conventional TDD system. The conventional TDD system can be any communication system conforming to LTE, UMTS, and their evolution standards. In a conventional TDD system, specific time slots are configured for downlink-to-uplink transitions. For example... Figure 7 As shown, the special time slot is located between the downlink time slot sequence and the uplink time slot sequence. The special time slot is divided into a downlink portion for downlink transmission, a guard interval, and an uplink portion for uplink transmission.

[0072] According to embodiments of this disclosure, Figure 1The TDD system in this example can be a traditional TDD system. Base station 120 can configure protection intervals at the terminal device level. Protection intervals for different terminal devices can be associated with orthogonal (different) resources. For example, base station 120 can set a first downlink-to-uplink conversion protection interval for terminal device 110A and a different second downlink-to-uplink conversion protection interval for terminal device 110B. Different beams b1 and b2 are used for terminal devices 110A and 110B respectively, and the first and second downlink-to-uplink conversion protection intervals can be associated with beams b1 and b2 respectively. Alternatively, orthogonal (different) frequency resources are used for terminal devices 110A and 110B respectively, and the first and second downlink-to-uplink conversion protection intervals can be associated with the corresponding frequency resources respectively. In this embodiment, the first downlink-to-uplink conversion protection interval should be greater than or equal to twice the propagation delay value of terminal device 110A, and the second downlink-to-uplink conversion protection interval should be greater than or equal to twice the propagation delay value of terminal device 110B.

[0073] For example, base station 120 can set different first and third downlink-to-uplink conversion protection intervals for a single terminal device 110A. Different beams may be used for a single terminal device 110A, and the first and third downlink-to-uplink conversion protection intervals can be associated with the corresponding beams respectively. Alternatively, orthogonal (different) frequency resources may be used for a single terminal device 110A, and the first and third downlink-to-uplink conversion protection intervals can be associated with the corresponding frequency resources respectively. In this embodiment, both the first and third downlink-to-uplink conversion protection intervals should be greater than or equal to twice the propagation delay value of terminal device 110A.

[0074] exist Figure 7 In this context, the size of the guard interval in time slot 710 can be different based on the guard interval setting. Furthermore, the position of the guard interval within time slot 710 can also be different. Different guard intervals can implement different downlink and / or uplink portions in the corresponding signal format. Thus, when more downlink transmission is needed, the downlink portion can be increased and the uplink portion reduced (or even eliminated); conversely, when more uplink transmission is needed, the uplink portion can be increased and the downlink portion reduced (or even eliminated).

[0075] The following combination Figure 8 This description explains how a guard interval according to embodiments of the present disclosure is applied to the signal format of an NR TDD system. An NR TDD system can be any communication system conforming to the current NR standard and its evolution standards. In NR TDD systems, several different time slot formats are defined. Figure 8 Five example time slot formats 810 to 850 are shown. For example... Figure 8As shown, each time slot format 810 to 850 includes 14 OFDM symbols. According to the corresponding definition, each OFDM symbol in a time slot format can be used for uplink transmission, downlink transmission, or flexibly. Flexible symbols can be used for uplink transmission, downlink transmission, or not for any transmission (e.g., as a guard interval). A time slot format may include at least one of uplink symbols, downlink symbols, or flexible symbols.

[0076] According to embodiments of this disclosure, Figure 1 The TDD system in this example can be an NR TDD system. Base station 120 can configure protection intervals at the terminal device level. Protection intervals for different terminal devices can be associated with orthogonal (different) resources. For example, base station 120 can set a first downlink-to-uplink conversion protection interval for terminal device 110A and a different second downlink-to-uplink conversion protection interval for terminal device 110B. Different beams b1 and b2 are used for terminal devices 110A and 110B respectively, and the first and second downlink-to-uplink conversion protection intervals can be associated with beams b1 and b2 respectively. Alternatively, orthogonal (different) frequency resources are used for terminal devices 110A and 110B respectively, and the first and second downlink-to-uplink conversion protection intervals can be associated with the corresponding frequency resources respectively. In this embodiment, the first downlink-to-uplink conversion protection interval should be greater than or equal to twice the propagation delay value of terminal device 110A, and the second downlink-to-uplink conversion protection interval should be greater than or equal to twice the propagation delay value of terminal device 110B.

[0077] For example, base station 120 can set different first and third downlink-to-uplink conversion protection intervals for a single terminal device 110A. Different beams may be used for a single terminal device 110A, and the first and third downlink-to-uplink conversion protection intervals can be associated with the corresponding beams respectively. Alternatively, orthogonal (different) frequency resources may be used for a single terminal device 110A, and the first and third downlink-to-uplink conversion protection intervals can be associated with the corresponding frequency resources respectively. In this embodiment, both the first and third downlink-to-uplink conversion protection intervals should be greater than or equal to twice the propagation delay value of terminal device 110A.

[0078] In NR TDD systems, corresponding downlink-to-uplink transition protection intervals can be implemented using one or more flexible symbols. For example, protection intervals can be configured at the granularity of OFDM symbols. Figure 8 In this context, when it is determined that the terminal equipment uses, for example, time slot format 830, a corresponding number of flexible symbols are selected from time slot format 830 to serve as the guard interval, based on the guard interval size. Moreover, the selected flexible symbols can be positioned differently in time slot format 830, thereby better meeting the uplink and downlink service transmission requirements.

[0079] In NR systems, guard intervals can span multiple time slots. Figure 9 An example of a cross-slot guard interval according to an embodiment is shown. Slot format 810 includes only uplink symbols and flexible symbols, and slot format 820 includes only flexible symbols and downlink symbols. Figure 9 In this configuration, adjacent time slot formats 810 and 820 are set for the terminal equipment. Correspondingly, the guard interval can be set within a continuous flexible symbol composed of time slot formats 810 and 820. Specifically, in... Figure 9 In this process, the protection interval occupies a portion of the flexible symbols in time slots 810 and 820, forming a cross-time slot protection interval.

[0080] In NR systems, different patterns can be configured for different time slot formats, and different patterns correspond to different transmission parameters. Figure 9 Based on the differences in uplink and downlink service characteristics, a first transmission mode is configured for time slot format 810, and a second transmission mode is configured for time slot format 820. This allows the base station and terminal equipment to use different transmission parameters for uplink and downlink transmission. For example, when the base station and terminal equipment use the FR2 millimeter-wave band for downlink transmission and the FR1 low-frequency (Sub-6GHz) band for uplink transmission, the uplink and downlink may select different subcarrier spacing and other parameters, thus allowing for different time slot format configurations. In this embodiment, the guard interval can span different modes.

[0081] Figure 10 An example flow for configuring a protection interval according to an embodiment of this disclosure is shown. Figure 10 As shown, at 1010, a preparation phase is performed between base station 120 and terminal device 110 to set a protection interval. The preparation phase may include at least one of the following: initially measuring (or subsequently updating) the signal propagation delay between terminal device 110 and base station 120 during the random access procedure or subsequent phase of terminal device 110; base station 120 allocating uplink and downlink communication resources to terminal device 110, such as determining matching beams, allocating frequency resources, etc.; and determining the service type and transmission requirements in the uplink or downlink.

[0082] At point 1020, base station 120 sends a protection interval setting message to terminal device 110. This message can be sent, for example, via RRC signaling or physical layer signaling (e.g., DCI Format 2_0 signaling on the GC-PDCCH channel). This message allows the setting of a protection interval specific to terminal device 110. For example, different protection intervals can be set for different terminal devices, and / or multiple different protection intervals can be set for the same terminal device. Of course, the set protection interval should be greater than or equal to twice the propagation delay value of the corresponding terminal device.

[0083] Figure 11 An example method for a TDD communication system according to an embodiment is shown. Method 1100 can be performed by a base station. Figure 11 As shown, method 1100 may include setting a first downlink-to-uplink transition protection interval for a first terminal device in a first cell (box 1105); and setting a second downlink-to-uplink transition protection interval for a second terminal device in the first cell, wherein the second downlink-to-uplink transition protection interval is different from the first downlink-to-uplink transition protection interval (box 1110). In an embodiment, the first downlink-to-uplink transition protection interval is associated with a first resource, and the second downlink-to-uplink transition protection interval is associated with a second resource, wherein the first resource and the second resource are resource orthogonal. As an addition or alternative to box 1110 (shown as dashed lines in the figure to indicate that it is not mandatory), method 1100 may further include setting a third downlink-to-uplink transition protection interval for the first terminal device, wherein the third downlink-to-uplink transition protection interval is different from the first downlink-to-uplink transition protection interval (box 1115). In an embodiment, the third downlink-to-uplink transition protection interval is associated with a third resource, wherein the first resource and the third resource are resource orthogonal. This method may be performed by electronic device 300, and detailed examples of the operation of this method can be found in the above description of the operation and function of electronic device 300, which will not be repeated here.

[0084] Figure 12 Another example method for a TDD communication system according to an embodiment is shown. Method 1200 can be executed by a terminal device. Figure 12 As shown, method 1200 may include receiving a first downlink-to-uplink transition protection interval (block 1205) set by a base station. In an embodiment, the first downlink-to-uplink transition protection interval is different from a second downlink-to-uplink transition protection interval set by the base station for a second terminal device in the same cell. The first downlink-to-uplink transition protection interval is associated with a first resource, and the second downlink-to-uplink transition protection interval is associated with a second resource. The first and second resources are resource orthogonal. Alternatively or (shown as dashed lines in the figure to indicate that it is not mandatory), method 1200 may also include receiving a third downlink-to-uplink transition protection interval (block 1210) set by a base station. In an embodiment, the third downlink-to-uplink transition protection interval is different from the first downlink-to-uplink transition protection interval. The third downlink-to-uplink transition protection interval is associated with a third resource. The first and third resources are resource orthogonal. This method may be performed by electronic device 350. Detailed examples of the operation of this method can be found in the above description of the operation and function of electronic device 350, which will not be repeated here.

[0085] The foregoing has described various exemplary electronic devices and methods according to embodiments of this disclosure. It should be understood that the operation or function of these electronic devices can be combined with each other to achieve more or fewer operations or functions than described. Similarly, the operational steps of the methods can be combined with each other in any suitable order to similarly achieve more or fewer operations than described.

[0086] It should be understood that the machine-executable instructions in a machine-readable storage medium or program product according to embodiments of this disclosure can be configured to perform operations corresponding to the above-described device and method embodiments. When referring to the above-described device and method embodiments, embodiments of the machine-readable storage medium or program product will be clear to those skilled in the art, and therefore will not be described again. Machine-readable storage media and program products used to carry or include the above-described machine-executable instructions also fall within the scope of this disclosure. Such storage media may include, but are not limited to, floppy disks, optical disks, magneto-optical disks, memory cards, memory sticks, etc. Furthermore, it should be understood that the above-described series of processes and devices can also be implemented by software and / or firmware.

[0087] Furthermore, it should be understood that the aforementioned series of processes and devices can also be implemented via software and / or firmware. In the case of implementation via software and / or firmware, data can be transferred from storage media or networks to computers with dedicated hardware architectures, such as… Figure 13 The general-purpose personal computer 1300 shown is equipped with the programs that constitute the software, and the computer is able to perform various functions when various programs are installed. Figure 13 This is a block diagram illustrating an example structure of a personal computer as an information processing device that may be employed in embodiments of this disclosure. In one example, the personal computer may correspond to the exemplary terminal device described above according to this disclosure.

[0088] exist Figure 13 In this system, the central processing unit (CPU) 1301 performs various processes based on the program stored in the read-only memory (ROM) 1302 or the program loaded into the random access memory (RAM) 1303 from the storage section 1308. The RAM 1303 also stores, as needed, the data required when the CPU 1301 performs various processes.

[0089] CPU 1301, ROM 1302 and RAM 1303 are connected to each other via bus 1304. Input / output interface 1305 is also connected to bus 1304.

[0090] The following components are connected to the input / output interface 1305: input section 1306, including a keyboard, mouse, etc.; output section 1307, including a display, such as a cathode ray tube (CRT), liquid crystal display (LCD), etc., and speakers, etc.; storage section 1308, including a hard disk, etc.; and communication section 1309, including a network interface card, such as a LAN card, modem, etc. The communication section 1309 performs communication processing via a network, such as the Internet.

[0091] As needed, drive 1310 is also connected to input / output interface 1305. Removable media 1311, such as disks, optical disks, magneto-optical disks, semiconductor memories, etc., are installed on drive 1310 as needed, so that computer programs read from them can be installed into storage section 1308 as needed.

[0092] When the above series of processes are implemented by software, the program constituting the software is installed from a network such as the Internet or a storage medium such as removable media 1311.

[0093] Those skilled in the art will understand that such storage media are not limited to Figure 13 The illustrated removable medium 1311 stores a program and is distributed separately from the device to provide the program to the user. Examples of removable media 1311 include magnetic disks (including floppy disks (registered trademark)), optical disks (including optical disc read-only memory (CD-ROM) and digital versatile disks (DVD)), magneto-optical disks (including mini-disk (MD) (registered trademark)), and semiconductor memory. Alternatively, the storage medium may be ROM 1302, a hard disk included in storage section 1308, etc., containing programs and distributed to the user along with the device containing them.

[0094] The technology disclosed herein can be applied to a variety of products. For example, the base station mentioned in this disclosure can be implemented as any type of evolved Node B (gNB), such as macro gNB and small gNB. Small gNB can be a gNB that covers a cell smaller than a macro cell, such as pico gNB, micro gNB, and femtocell gNB. 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 subject configured to control wireless communication (also called base station equipment); and one or more remote radio heads (RRHs) located in a different location from the subject. In addition, the various types of terminals described below can operate as base stations by temporarily or semi-persistently performing base station functions.

[0095] For example, the terminal devices mentioned in this disclosure, also referred to in some examples as user equipment, can be implemented as mobile terminals (such as smartphones, tablet PCs, laptop PCs, portable gaming terminals, portable / dongle-type mobile routers, and digital camera devices) or in-vehicle terminals (such as car navigation devices). User equipment can also be implemented as terminals performing machine-to-machine (M2M) communication (also known as machine-type communication (MTC) terminals). Furthermore, user equipment can be a wireless communication module (such as an integrated circuit module comprising a single chip) installed on each of the aforementioned terminals.

[0096] The following will refer to Figures 14 to 17 Describe an application example based on this disclosure.

[0097] [Application examples of base stations]

[0098] First application example

[0099] Figure 14 This is a block diagram illustrating a first example of a schematic configuration of a gNB to which the technologies of this disclosure can be applied. The gNB 1400 includes a plurality of antennas 1410 and a base station device 1420. The base station device 1420 and each antenna 1410 can be connected to each other via RF cables. In one implementation, the gNB 1400 (or base station device 1420) herein may correspond to the aforementioned electronic devices 300A, 1300A, and / or 1500B.

[0100] Each of the antennas 1410 includes one or more antenna elements (such as multiple antenna elements included in a multiple-input multiple-output (MIMO) antenna) and is used by the base station equipment 1420 to transmit and receive wireless signals. Figure 14 As shown, the gNB 1400 may include multiple antennas 1410. For example, the multiple antennas 1410 may be compatible with multiple frequency bands used by the gNB 1400.

[0101] The base station equipment 1420 includes a controller 1421, a memory 1422, a network interface 1423, and a wireless communication interface 1425.

[0102] The controller 1421 can be, for example, a CPU or a DSP, and operates various higher-level functions of the base station equipment 1420. For example, the controller 1421 generates data packets based on data in signals processed by the wireless communication interface 1425, and transmits the generated packets via the network interface 1423. The controller 1421 can bundle data from multiple baseband processors to generate bundled packets and transmit the generated bundled packets. The controller 1421 may have logical functions that perform controls such as radio resource control, radio bearer control, mobility management, admission control, and scheduling. This control can be performed in conjunction with nearby gNBs or core network nodes. The memory 1422 includes RAM and ROM, and stores programs executed by the controller 1421 and various types of control data (such as terminal lists, transmission power data, and scheduling data).

[0103] Network interface 1423 is a communication interface for connecting base station equipment 1420 to core network 1424. Controller 1421 can communicate with core network nodes or other gNBs via network interface 1423. In this case, gNB 1400 and core network nodes or other gNBs can be connected to each other via logical interfaces (such as S1 and X2 interfaces). Network interface 1423 can also be a wired communication interface or a wireless communication interface for wireless backhaul. If network interface 1423 is a wireless communication interface, it can use a higher frequency band for wireless communication compared to the frequency band used by wireless communication interface 1425.

[0104] Wireless communication interface 1425 supports any cellular communication scheme (such as LTE, LTE-Advanced, and NR) and provides wireless connectivity to terminals located in the cell of gNB 1400 via antenna 1410. Wireless communication interface 1425 typically includes, for example, a baseband (BB) processor 1426 and RF circuitry 1427. BB processor 1426 can perform, for example, encoding / decoding, modulation / demodulation, and multiplexing / demultiplexing, and performs various types of signal processing at layers such as L1, Media Access Control (MAC), Radio Link Control (RLC), and Packet Data Convergence Protocol (PDCP). Instead of controller 1421, BB processor 1426 may have some or all of the above-described logical functions. BB processor 1426 may be a memory storing communication control programs, or a module including a processor and associated circuitry configured to execute programs. Update programs can change the functionality of BB processor 1426. The module may be a card or blade inserted into a slot in base station equipment 1420. Alternatively, the module may be a chip mounted on a card or blade. Meanwhile, the RF circuit 1427 may include, for example, a mixer, a filter, and an amplifier, and transmits and receives wireless signals via the antenna 1410. Although Figure 14 An example of an RF circuit 1427 connected to an antenna 1410 is shown, but this disclosure is not limited to the illustration, and an RF circuit 1427 can be connected to multiple antennas 1410 simultaneously.

[0105] like Figure 14 As shown, the wireless communication interface 1425 may include multiple BB processors 1426. For example, the multiple BB processors 1426 may be compatible with multiple frequency bands used by the gNB 1400. Figure 14 As shown, the wireless communication interface 1425 may include multiple RF circuits 1427. For example, the multiple RF circuits 1427 may be compatible with multiple antenna elements. Although Figure 14 An example is shown in which the wireless communication interface 1425 includes multiple BB processors 1426 and multiple RF circuits 1427, but the wireless communication interface 1425 may also include a single BB processor 1426 or a single RF circuit 1427.

[0106] Second application example

[0107] Figure 15 This is a block diagram illustrating a second example of a schematic configuration of a gNB to which the technologies of this disclosure can be applied. The gNB 1530 includes multiple antennas 1540, a base station device 1550, and an RRH 1560. The RRH 1560 and each antenna 1540 can be connected to each other via RF cables. The base station device 1550 and the RRH 1560 can be connected to each other via high-speed lines such as fiber optic cables. In one implementation, the gNB 1530 (or base station device 1550) herein may correspond to the aforementioned electronic devices 300A, 1300A, and / or 1500B.

[0108] Each of the antennas 1540 includes one or more antenna elements (such as multiple antenna elements included in a MIMO antenna) and is used by the RRH 1560 to transmit and receive wireless signals. Figure 15 As shown, the gNB 1530 may include multiple antennas 1540. For example, the multiple antennas 1540 may be compatible with multiple frequency bands used by the gNB 1530.

[0109] Base station equipment 1550 includes a controller 1551, a memory 1552, a network interface 1553, a wireless communication interface 1555, and a connection interface 1557. The controller 1551, memory 1552, and network interface 1553 are related to a reference... Figure 14 The controller 1421, memory 1422 and network interface 1423 described are the same.

[0110] Wireless communication interface 1555 supports any cellular communication scheme (such as LTE, LTE-Advanced, and NR) and provides wireless communication to terminals located in the sector corresponding to RRH 1560 via RRH 1560 and antenna 1540. Wireless communication interface 1555 may typically include, for example, a BB processor 1556. In addition to the BB processor 1556 being connected to the RF circuitry 1564 of RRH 1560 via connection interface 1557, the BB processor 1556 is connected to the reference... Figure 14 The BB processor 1426 is described as identical. Figure 15 As shown, the wireless communication interface 1555 may include multiple BB processors 1556. For example, the multiple BB processors 1556 may be compatible with multiple frequency bands used by the gNB 1530. Although Figure 15 An example is shown in which the wireless communication interface 1555 includes multiple BB processors 1556, but the wireless communication interface 1555 may also include a single BB processor 1556.

[0111] Connection interface 1557 is an interface for connecting base station device 1550 (wireless communication interface 1555) to RRH 1560. Connection interface 1557 may also be a communication module for communication in the aforementioned high-speed line connecting base station device 1550 (wireless communication interface 1555) to RRH 1560.

[0112] The RRH 1560 includes a connectivity interface 1561 and a wireless communication interface 1563.

[0113] Connection interface 1561 is an interface for connecting RRH 1560 (wireless communication interface 1563) to base station equipment 1550. Connection interface 1561 can also be a communication module for communication in the aforementioned high-speed line.

[0114] Wireless communication interface 1563 transmits and receives wireless signals via antenna 1540. Wireless communication interface 1563 typically includes, for example, RF circuitry 1564. RF circuitry 1564 may include, for example, a mixer, filter, and amplifier, and transmits and receives wireless signals via antenna 1540. Although Figure 15 An example of an RF circuit 1564 connected to an antenna 1540 is shown, but this disclosure is not limited to the illustration, and an RF circuit 1564 can be connected to multiple antennas 1540 simultaneously.

[0115] like Figure 15 As shown, the wireless communication interface 1563 may include multiple RF circuits 1564. For example, the multiple RF circuits 1564 may support multiple antenna elements. Although Figure 15An example is shown in which the wireless communication interface 1563 includes multiple RF circuits 1564, but the wireless communication interface 1563 may also include a single RF circuit 1564.

[0116] [Application examples related to user equipment]

[0117] First application example

[0118] Figure 16 This is a block diagram illustrating an example of a schematic configuration of a smartphone 1600 to which the technologies of this disclosure can be applied. The smartphone 1600 includes a processor 1601, a memory 1602, a storage device 1603, an external connection interface 1604, a camera device 1606, a sensor 1607, a microphone 1608, an input device 1609, a display device 1610, a speaker 1611, a wireless communication interface 1612, one or more antenna switches 1615, one or more antennas 1616, a bus 1617, a battery 1618, and an auxiliary controller 1619. In one implementation, the smartphone 1600 (or processor 1601) herein may correspond to the terminal devices 300B and / or 1500A described above.

[0119] The processor 1601 may be, for example, a CPU or a system-on-a-chip (SoC), and controls the application layer and other functions of the smartphone 1600. The memory 1602 includes RAM and ROM, and stores data and programs executed by the processor 1601. The storage device 1603 may include storage media such as semiconductor memory and hard disks. The external connectivity interface 1604 is an interface for connecting external devices, such as memory cards and Universal Serial Bus (USB) devices, to the smartphone 1600.

[0120] The camera device 1606 includes an image sensor (such as a charge-coupled device (CCD) and complementary metal-oxide-semiconductor (CMOS)) and generates captured images. The sensor 1607 may include a set of sensors, such as a measurement sensor, a gyroscope sensor, a magnetometer sensor, and an accelerometer sensor. The microphone 1608 converts sound input to the smartphone 1600 into an audio signal. The input device 1609 includes, for example, a touch sensor, keypad, keyboard, buttons, or switches configured to detect touches on the screen of the display device 1610 and receive operations or information input from the user. The display device 1610 includes a screen (such as a liquid crystal display (LCD) and an organic light-emitting diode (OLED) display) and displays the output image of the smartphone 1600. The speaker 1611 converts the audio signal output from the smartphone 1600 into sound.

[0121] The wireless communication interface 1612 supports any cellular communication scheme (such as LTE, LTE-Advanced, and NR) and performs wireless communication. The wireless communication interface 1612 typically includes, for example, a BB processor 1613 and RF circuitry 1614. The BB processor 1613 can perform, for example, encoding / decoding, modulation / demodulation, and multiplexing / demultiplexing, and performs various types of signal processing for wireless communication. Meanwhile, the RF circuitry 1614 can include, for example, mixers, filters, and amplifiers, and transmits and receives wireless signals via antenna 1616. The wireless communication interface 1612 can be a single chip module on which the BB processor 1613 and RF circuitry 1614 are integrated. Figure 16 As shown, the wireless communication interface 1612 may include multiple BB processors 1613 and multiple RF circuits 1614. Although Figure 16 An example is shown in which the wireless communication interface 1612 includes multiple BB processors 1613 and multiple RF circuits 1614, but the wireless communication interface 1612 may also include a single BB processor 1613 or a single RF circuit 1614.

[0122] In addition to cellular communication schemes, wireless communication interface 1612 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, wireless communication interface 1612 may include a BB processor 1613 and RF circuitry 1614 for each wireless communication scheme.

[0123] Each of the antenna switches 1615 switches the connection destination of the antenna 1616 among multiple circuits (e.g., circuits for different wireless communication schemes) included in the wireless communication interface 1612.

[0124] Each of the antennas 1616 includes one or more antenna elements (such as multiple antenna elements included in a MIMO antenna) and is used by the wireless communication interface 1612 to transmit and receive wireless signals. Figure 16 As shown, the smartphone 1600 may include multiple antennas 1616. Although Figure 16 An example is shown in which the smartphone 1600 includes multiple antennas 1616, but the smartphone 1600 may also include a single antenna 1616.

[0125] Furthermore, the smartphone 1600 may include an antenna 1616 for each wireless communication scheme. In this case, the antenna switch 1615 can be omitted from the configuration of the smartphone 1600.

[0126] Bus 1617 connects processor 1601, memory 1602, storage device 1603, external connection interface 1604, camera device 1606, sensor 1607, microphone 1608, input device 1609, display device 1610, speaker 1611, wireless communication interface 1612, and auxiliary controller 1619 to each other. Battery 1618 supplies power to... Figure 16 The various blocks of the smartphone 1600 shown are powered, and the feeders are partially shown as dashed lines in the figure. The auxiliary controller 1619 operates the minimum necessary functions of the smartphone 1600, for example, in sleep mode.

[0127] Second application example

[0128] Figure 17 This is a block diagram illustrating an example of a schematic configuration of a car navigation device 1720 to which the technology of this disclosure can be applied. The car navigation device 1720 includes a processor 1721, a memory 1722, a Global Positioning System (GPS) module 1724, a sensor 1725, a data interface 1726, a content player 1727, a storage medium interface 1728, an input device 1729, a display device 1730, a speaker 1731, a wireless communication interface 1733, one or more antenna switches 1736, one or more antennas 1737, and a battery 1738. In one implementation, the car navigation device 1720 (or processor 1721) herein may correspond to the aforementioned terminal devices 300B and / or 1500A.

[0129] The processor 1721 can be, for example, a CPU or a SoC, and controls the navigation functions and other functions of the car navigation device 1720. The memory 1722 includes RAM and ROM, and stores data and programs executed by the processor 1721.

[0130] GPS module 1724 uses GPS signals received from GPS satellites to measure the location (such as latitude, longitude, and altitude) of car navigation device 1720. Sensor 1725 may include a set of sensors, such as a gyroscope sensor, a geomagnetic sensor, and an air pressure sensor. Data interface 1726 is connected to, for example, an in-vehicle network 1741 via a terminal not shown, and acquires data generated by the vehicle (such as vehicle speed data).

[0131] Content player 1727 reproduces content stored on storage media (such as CDs and DVDs), which is inserted into storage media interface 1728. Input device 1729 includes, for example, a touch sensor, button, or switch configured to detect touch on the screen of display device 1730, and receives operations or information input from the user. Display device 1730 includes a screen such as an LCD or OLED display and displays images or reproduced content for navigation functions. Speaker 1731 outputs sound for navigation functions or reproduced content.

[0132] The wireless communication interface 1733 supports any cellular communication scheme (such as LTE, LTE-Advanced, and NR) and performs wireless communication. The wireless communication interface 1733 typically includes, for example, a BB processor 1734 and RF circuitry 1735. The BB processor 1734 can perform, for example, encoding / decoding, modulation / demodulation, and multiplexing / demultiplexing, and performs various types of signal processing for wireless communication. Meanwhile, the RF circuitry 1735 can include, for example, a mixer, filters, and amplifiers, and transmits and receives wireless signals via antenna 1737. The wireless communication interface 1733 can also be a chip module on which the BB processor 1734 and RF circuitry 1735 are integrated. Figure 17 As shown, the wireless communication interface 1733 may include multiple BB processors 1734 and multiple RF circuits 1735. Although Figure 17 An example is shown in which the wireless communication interface 1733 includes multiple BB processors 1734 and multiple RF circuits 1735, but the wireless communication interface 1733 may also include a single BB processor 1734 or a single RF circuit 1735.

[0133] In addition to cellular communication schemes, the wireless communication interface 1733 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 1733 may include a BB processor 1734 and an RF circuit 1735.

[0134] Each of the antenna switches 1736 switches the connection destination of the antenna 1737 among multiple circuits (such as circuits for different wireless communication schemes) included in the wireless communication interface 1733.

[0135] Each of the antennas 1737 includes one or more antenna elements (such as multiple antenna elements included in a MIMO antenna) and is used by the wireless communication interface 1733 to transmit and receive wireless signals. Figure 17 As shown, the car navigation device 1720 may include multiple antennas 1737. Although Figure 17An example is shown in which the car navigation device 1720 includes multiple antennas 1737, but the car navigation device 1720 may also include a single antenna 1737.

[0136] Furthermore, the car navigation device 1720 may include an antenna 1737 for each wireless communication scheme. In this case, the antenna switch 1736 can be omitted from the configuration of the car navigation device 1720.

[0137] Battery 1738 via feeder to Figure 17 The various blocks of the car navigation device 1720 shown are powered, and the feeders are partially shown as dashed lines in the figure. Battery 1738 accumulates the power supplied from the vehicle.

[0138] The technology disclosed herein can also be implemented as an in-vehicle system (or vehicle) 1740 including one or more blocks of an automotive navigation device 1720, an in-vehicle network 1741, and a vehicle module 1742. The vehicle module 1742 generates vehicle data (such as vehicle speed, engine speed, and fault information) and outputs the generated data to the in-vehicle network 1741.

[0139] The scheme disclosed herein can be implemented in the following example manner.

[0140] 1. An electronic device for a base station, wherein the base station is used in a time-division duplex communication system, the electronic device includes processing circuitry, and the processing circuitry is configured to:

[0141] For the first terminal equipment in the first cell, a first downlink to uplink handover protection interval is set; and

[0142] For the second terminal equipment in the first cell, a second downlink-to-uplink handover protection interval is set, wherein the second downlink-to-uplink handover protection interval is different from the first downlink-to-uplink handover protection interval.

[0143] The first downlink to uplink handover protection interval is associated with the first resource, and the second downlink to uplink handover protection interval is associated with the second resource. The first resource and the second resource are orthogonal.

[0144] 2. The electronic device as described in Clause 1, wherein the processing circuitry is configured to:

[0145] A third downlink-to-uplink handover protection interval is set for the first terminal device, wherein the third downlink-to-uplink handover protection interval is different from the first downlink-to-uplink handover protection interval.

[0146] Among them, the third downlink to uplink handover protection interval is associated with the third resource, and the first resource and the third resource have resource orthogonality.

[0147] 3. An electronic device as described in Clause 1 or 2, wherein the resource orthogonality is achieved at least by different beams.

[0148] 4. An electronic device as described in Clause 1 or 2, wherein the resource orthogonality is achieved at least through different frequency resources.

[0149] 5. An electronic device as described in Clause 1 or 2, wherein the resource orthogonality is a resource orthogonality greater than a threshold level.

[0150] 6. The electronic device as described in Clause 1 or 2, wherein the processing circuitry is configured to set the downlink-to-uplink switching protection interval by:

[0151] For either the first or second terminal device, determine the corresponding propagation delay and set the corresponding downlink to uplink handover protection interval to be greater than or equal to twice the propagation delay value.

[0152] 7. The electronic device as described in Clause 6, wherein the time-division duplex communication system is a system conforming to LTE or its evolution standard, and the corresponding downlink-to-uplink handover protection interval is located in a special subframe of the system.

[0153] 8. The electronic device as described in Clause 6, wherein the time-division duplex communication system is a system conforming to NR or its evolution standard, and the corresponding downlink-to-uplink handover protection interval includes one or more flexible symbols of the system.

[0154] 9. Electronic devices as described in Clause 8, wherein the corresponding downlink to uplink switching protection interval includes different parameter set configurations.

[0155] 10. An electronic device as described in Clause 7 or 8, wherein the processing circuitry is configured to notify the corresponding downlink-to-uplink handover protection interval via terminal device-specific signaling.

[0156] 11. An electronic device for a first terminal device, wherein the first terminal device is used in a time-division duplex communication system, the electronic device including processing circuitry, and the processing circuitry being configured to:

[0157] The system receives a first downlink-to-uplink handover protection interval set by the base station, wherein the first downlink-to-uplink handover protection interval is different from the second downlink-to-uplink handover protection interval set by the base station for a second terminal device in the same cell.

[0158] The first downlink to uplink handover protection interval is associated with the first resource, and the second downlink to uplink handover protection interval is associated with the second resource. The first resource and the second resource are orthogonal.

[0159] 12. The electronic device as described in Clause 11, wherein the processing circuitry is configured to:

[0160] The system receives a third downlink-to-uplink handover protection interval set by the base station, wherein the third downlink-to-uplink handover protection interval differs from the first downlink-to-uplink handover protection interval.

[0161] Among them, the third downlink to uplink handover protection interval is associated with the third resource, and the first resource and the third resource have resource orthogonality.

[0162] 13. An electronic device as described in Clause 11 or 12, wherein the resource orthogonality is achieved at least by different beams.

[0163] 14. An electronic device as described in Clause 11 or 12, wherein the resource orthogonality is achieved at least through different frequency resources.

[0164] 15. An electronic device as described in Clause 11 or 12, wherein the resource orthogonality is a resource orthogonality greater than a threshold level.

[0165] 16. An electronic device as described in Clause 11 or 12, wherein the first downlink-to-uplink handover protection interval and the third downlink-to-uplink handover protection interval are greater than or equal to twice the propagation delay value of the first terminal device.

[0166] 17. An electronic device as described in Clause 16, wherein the time-division duplex communication system is a system conforming to LTE or its evolution standard, and the corresponding downlink-to-uplink handover protection interval is located in a special subframe of the system.

[0167] 18. An electronic device as described in Clause 16, wherein the time-division duplex communication system is a system conforming to NR or its evolution standard, and the corresponding downlink-to-uplink handover protection interval includes one or more flexible symbols of the system.

[0168] 19. Electronic devices as described in Clause 18, wherein the corresponding downlink to uplink switching protection interval includes different parameter set configurations.

[0169] 20. An electronic device as described in Clause 17 or 18, wherein the processing circuitry is configured to receive a corresponding downlink-to-uplink handover protection interval via signaling specific to the first terminal device.

[0170] 21. A method for a time-division duplex communication system, comprising a base station:

[0171] For the first terminal equipment in the first cell, a first downlink to uplink handover protection interval is set; and

[0172] For the second terminal equipment in the first cell, a second downlink-to-uplink handover protection interval is set, wherein the second downlink-to-uplink handover protection interval is different from the first downlink-to-uplink handover protection interval.

[0173] The first downlink to uplink handover protection interval is associated with the first resource, and the second downlink to uplink handover protection interval is associated with the second resource. The first resource and the second resource are orthogonal.

[0174] 22. The method described in Clause 21 further includes a base station:

[0175] A third downlink-to-uplink handover protection interval is set for the first terminal device, wherein the third downlink-to-uplink handover protection interval is different from the first downlink-to-uplink handover protection interval.

[0176] Among them, the third downlink to uplink handover protection interval is associated with the third resource, and the first resource and the third resource have resource orthogonality.

[0177] 23. A method for a time-division duplex communication system, comprising a first terminal device:

[0178] The system receives a first downlink-to-uplink handover protection interval set by the base station, wherein the first downlink-to-uplink handover protection interval is different from the second downlink-to-uplink handover protection interval set by the base station for a second terminal device in the same cell.

[0179] The first downlink to uplink handover protection interval is associated with the first resource, and the second downlink to uplink handover protection interval is associated with the second resource. The first resource and the second resource are orthogonal.

[0180] 24. The method as described in Clause 23 further includes a first terminal device:

[0181] The system receives a third downlink-to-uplink handover protection interval set by the base station, wherein the third downlink-to-uplink handover protection interval differs from the first downlink-to-uplink handover protection interval.

[0182] Among them, the third downlink to uplink handover protection interval is associated with the third resource, and the first resource and the third resource have resource orthogonality.

[0183] 25. A computer-readable storage medium storing one or more instructions, which, when executed by one or more processing circuits of an electronic device, cause the electronic device to perform the method as described in any one of clauses 21 to 24.

[0184] 26. An apparatus for wireless communication, comprising a unit for performing the method as described in any one of clauses 21 to 24.

[0185] Exemplary embodiments of the present disclosure have been described above with reference to the accompanying drawings; however, the present disclosure is by no means limited to the examples described above. Various changes and modifications can be made by those skilled in the art within the scope of the appended claims, and it should be understood that such changes and modifications naturally fall within the technical scope of the present disclosure.

[0186] For example, the multiple functions included in one unit in the above embodiments can be implemented by separate devices. Alternatively, the multiple functions implemented by multiple units in the above embodiments can be implemented by separate devices respectively. In addition, one of the above functions can be implemented by multiple units. Needless to say, such a configuration is included within the scope of the present disclosure.

[0187] In this specification, the steps described in the flowchart include not only processes executed sequentially in the stated order, but also processes executed in parallel or individually, rather than necessarily sequentially. Furthermore, even within the steps of sequential processing, needless to say, the order can be appropriately altered.

[0188] While this disclosure and its advantages have been described in detail, it should be understood that various changes, substitutions, and modifications can be made without departing from the spirit and scope of this disclosure as defined by the appended claims. Furthermore, the terms "comprising," "including," or any other variations thereof used in embodiments of this disclosure are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. An electronic device for a base station, wherein, The base station is used in an NR time-division duplex communication system, and the electronic device includes a processing circuit, which is configured to: The first terminal equipment of the first cell is configured with a first signal format including a first downlink-to-uplink handover protection interval and a second signal format including a third downlink-to-uplink handover protection interval. The first downlink-to-uplink handover protection interval is associated with a first resource and the third downlink-to-uplink handover protection interval is associated with a third resource. The first resource and the third resource are orthogonal based on beams of different levels. Based on service requirements, the third downlink-to-uplink handover protection interval is set to be smaller or larger than the first downlink-to-uplink handover protection interval and is more biased towards the downlink time slot sequence or the uplink time slot sequence to adjust uplink and downlink transmission opportunities, thereby meeting service requirements. For the second terminal equipment in the first cell, a second downlink-to-uplink handover protection interval is set, wherein the second downlink-to-uplink handover protection interval is different from the first downlink-to-uplink handover protection interval, wherein the second downlink-to-uplink handover protection interval is associated with the second resource, and the first resource and the second resource have resource orthogonality.

2. The electronic device of claim 1, wherein, The resource orthogonality is achieved at least through different beams.

3. The electronic device of claim 1, wherein, The orthogonality of the resources is achieved at least through resources of different frequencies.

4. The electronic device as claimed in claim 1, wherein, The resource orthogonality is the resource orthogonality that is greater than a threshold level.

5. The electronic device as claimed in claim 1, wherein, The processing circuit is configured to set the downlink-to-uplink switching protection interval by the following operation: For either the first or second terminal device, determine the corresponding propagation delay and set the corresponding downlink to uplink handover protection interval to be greater than or equal to twice the propagation delay value.

6. The electronic device as claimed in claim 5, wherein, The time-division duplex communication system is a system that conforms to LTE or its evolution standards, and the corresponding downlink to uplink handover protection interval is located in a special subframe of the system.

7. The electronic device as claimed in claim 5, wherein, The time-division duplex communication system is a system that conforms to NR or its evolution standard, and the corresponding downlink to uplink handover protection interval includes one or more flexible symbols of the system.

8. The electronic device as claimed in claim 7, wherein, The corresponding downlink to uplink switching protection intervals include different parameter set configurations.

9. The electronic device as claimed in claim 6 or 7, wherein, The processing circuit is configured to notify the corresponding downlink-to-uplink handover protection interval via terminal device-specific signaling.

10. An electronic device for a first terminal device, wherein, The first terminal device is used in an NR time-division duplex communication system. The electronic device includes a processing circuit, and the processing circuit is configured to: The system receives a first signal format configured by the base station, including a first downlink-to-uplink handover protection interval and a second signal format, including a third downlink-to-uplink handover protection interval. The first downlink-to-uplink handover protection interval is associated with a first resource, and the third downlink-to-uplink handover protection interval is associated with a third resource. The first and third resources are orthogonal based on beamforming at different levels. Based on service requirements, the third downlink-to-uplink handover protection interval is set to be smaller or larger than the first downlink-to-uplink handover protection interval and is more biased towards the downlink or uplink time slot sequence to adjust uplink and downlink transmission opportunities, thereby meeting service requirements. The first downlink-to-uplink handover protection interval is different from the second downlink-to-uplink handover protection interval set by the base station for the second terminal device in the same cell. The first downlink-to-uplink handover protection interval is associated with the first resource, and the second downlink-to-uplink handover protection interval is associated with the second resource. The first resource and the second resource have resource orthogonality.

11. The electronic device of claim 10, wherein, The resource orthogonality is achieved at least through different beams.

12. The electronic device of claim 10, wherein, The orthogonality of the resources is achieved at least through resources of different frequencies.

13. The electronic device of claim 10, wherein, The resource orthogonality is the resource orthogonality that is greater than a threshold level.

14. The electronic device of claim 10, wherein, The first downlink to uplink handover protection interval and the third downlink to uplink handover protection interval are greater than or equal to twice the propagation delay value of the first terminal device.

15. The electronic device of claim 14, wherein, The time-division duplex communication system is a system that conforms to LTE or its evolution standards, and the corresponding downlink to uplink handover protection interval is located in a special subframe of the system.

16. The electronic device of claim 14, wherein, The time-division duplex communication system is a system that conforms to NR or its evolution standard, and the corresponding downlink to uplink handover protection interval includes one or more flexible symbols of the system.

17. The electronic device of claim 16, wherein, The corresponding downlink to uplink switching protection intervals include different parameter set configurations.

18. The electronic device as claimed in claim 15 or 16, wherein, The processing circuit is configured to receive the corresponding downlink-to-uplink handover protection interval via signaling specific to the first terminal device.

19. A method for an NR time-division duplex communication system, comprising: a base station: The first terminal equipment of the first cell is configured with a first signal format including a first downlink-to-uplink handover protection interval and a second signal format including a third downlink-to-uplink handover protection interval. The first downlink-to-uplink handover protection interval is associated with a first resource and the third downlink-to-uplink handover protection interval is associated with a third resource. The first resource and the third resource are orthogonal based on beams of different levels. Based on service requirements, the third downlink-to-uplink handover protection interval is set to be smaller or larger than the first downlink-to-uplink handover protection interval and is more biased towards the downlink time slot sequence or the uplink time slot sequence to adjust uplink and downlink transmission opportunities, thereby meeting service requirements. For the second terminal equipment in the first cell, a second downlink-to-uplink handover protection interval is set, wherein the second downlink-to-uplink handover protection interval is different from the first downlink-to-uplink handover protection interval, wherein the second downlink-to-uplink handover protection interval is associated with the second resource, and the first resource and the second resource have resource orthogonality.

20. A method for an NR time-division duplex communication system, comprising a first terminal device: The system receives a first signal format configured by the base station, including a first downlink-to-uplink handover protection interval and a second signal format, including a third downlink-to-uplink handover protection interval. The first downlink-to-uplink handover protection interval is associated with a first resource, and the third downlink-to-uplink handover protection interval is associated with a third resource. The first and third resources are orthogonal based on beamforming at different levels. Based on service requirements, the third downlink-to-uplink handover protection interval is set to be smaller or larger than the first downlink-to-uplink handover protection interval and is more biased towards the downlink or uplink time slot sequence to adjust uplink and downlink transmission opportunities, thereby meeting service requirements. The first downlink-to-uplink handover protection interval is different from the second downlink-to-uplink handover protection interval set by the base station for the second terminal device in the same cell. The first downlink-to-uplink handover protection interval is associated with the first resource, and the second downlink-to-uplink handover protection interval is associated with the second resource. The first resource and the second resource have resource orthogonality.

21. A computer-readable storage medium storing one or more instructions, which, when executed by one or more processing circuits of an electronic device, cause the electronic device to perform the method as described in any one of claims 19 to 20.

22. An apparatus for wireless communication, comprising a unit for performing the method as described in any one of claims 19 to 20.

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