Apparatus and method for collision handling

Abstract

The embodiment of the invention relates to equipment, a method and a non-transitory computer readable medium for conflict processing. A terminal device receives, from a network device, signaling indicating a subset of flexible symbols as downlink (DL) symbols or flexible symbols, where the subset of flexible symbols is from a set of flexible symbols configured with uplink (UL) subbands. The terminal device determines whether to perform the UL transmission in the flexible symbol set based on determining whether the UL transmission is within the UL sub-band. Where the UL transmission is within the UL sub-band, the terminal device performs the UL transmission in the flexible symbol set. In this manner, when DL and UL conflicts occur, cancellation of UL transmissions may be avoided, and thus communication performance may be improved.

Description

Technical Field

[0001] Embodiments of this disclosure generally relate to the field of communications, and particularly to apparatus, methods and nontransitory computer-readable media for conflict resolution. Background Technology

[0002] In wireless communication systems, the term "duplex" refers to bidirectional communication between two devices, where link transmissions in each direction can occur simultaneously (i.e., full-duplex) or mutually exclusive (i.e., half-duplex). In traditional full-duplex transceivers, a different carrier frequency is used for each link direction. This is called full-duplex frequency division duplex (FD-FDD). Conversely, in half-duplex (HD) transceivers, link directions are separated by time-domain resources.

[0003] Advanced full-duplex mode allows the same devices to transmit and receive simultaneously on the same carrier, potentially doubling link throughput. Transmission latency is also reduced due to simultaneous bidirectional transmission. However, simultaneous downlink (DL) and uplink (UL) transmissions on the same carrier can cause self-interference. At the base station (BS) side, this means DL transmissions can contaminate UL reception, while at the UE side, UL transmissions can contaminate DL reception. Enhanced collision handling in full-duplex mode remains necessary. Summary of the Invention

[0004] In general, exemplary embodiments of this disclosure provide apparatus, methods, and computer-readable media for conflict resolution.

[0005] In a first aspect, a terminal device is provided. The terminal device includes a processor and a transceiver coupled to the processor. The processor is configured to: receive signaling from a network device via the transceiver, the signaling indicating a subset of flexible symbols as downlink (DL) symbols or flexible symbols, wherein the subset of flexible symbols comes from a set of flexible symbols configured with an uplink (UL) subband; determine whether to perform a UL transmission in the set of flexible symbols based on whether a UL transmission is within the UL subband; and, if a UL transmission is within the UL subband, perform a UL transmission in the set of flexible symbols via the transceiver.

[0006] In a second aspect, a network device is provided. The network device includes a processor and a transceiver coupled to the processor. The processor is configured to: transmit signaling to an end device via the transceiver, the signaling indicating a subset of flexible symbols as downlink (DL) symbols or flexible symbols, wherein the subset of flexible symbols comes from a set of flexible symbols configured with an uplink (UL) subband; determine whether to monitor UL transmissions in the set of flexible symbols based on whether UL transmissions are within the UL subband; and monitor UL transmissions in the set of flexible symbols if UL transmissions are within the UL subband.

[0007] In a third aspect, a method performed by a terminal device is provided. The method includes: receiving signaling from a network device via a transceiver, the signaling indicating a subset of flexible symbols as downlink (DL) symbols or flexible symbols, wherein the subset of flexible symbols comes from a set of flexible symbols configured with uplink (UL) transmissions; determining whether to perform a UL transmission within the set of flexible symbols based on whether the UL transmission is within a UL subband; and performing the UL transmission within the set of flexible symbols via the transceiver if the UL transmission is within a UL subband.

[0008] In a fourth aspect, a method performed by a network device is provided. The method includes: sending signaling to an end device via a transceiver, the signaling indicating a subset of flexible symbols as downlink (DL) symbols or flexible symbols, wherein the subset of flexible symbols comes from a set of flexible symbols configured with uplink (UL) transmissions; determining whether to monitor UL transmissions in the set of flexible symbols based on whether the UL transmissions are within a UL subband; and monitoring UL transmissions in the set of flexible symbols if the UL transmissions are within a UL subband.

[0009] In a fifth aspect, a non-transient computer-readable medium is provided. Program instructions are stored on the non-transient computer-readable medium. When executed by a device, the program instructions cause the device to perform at least the method according to the third or fourth aspect described above.

[0010] It should be understood that the summary portion is not intended to identify key or essential features of the embodiments of this disclosure, nor is it intended to limit the scope of this disclosure. Other features of this disclosure will become readily apparent from the following description. Attached Figure Description

[0011] Some embodiments will now be described with reference to the accompanying drawings, in which:

[0012] Figure 1A The illustration shows an example network environment in which some embodiments of the present disclosure may be implemented;

[0013] Figure 1B The illustrations depict example duplex modes related to some embodiments of this disclosure;

[0014] Figure 1C The illustrations depict example transmission scenarios related to some embodiments of this disclosure;

[0015] Figure 1D The illustration shows another example transmission scenario related to some embodiments of this disclosure;

[0016] Figure 2 An example signaling diagram is illustrated, which illustrates an example process according to some embodiments of the present disclosure;

[0017] Figure 3 The illustrations depict example transmission scenarios according to some embodiments of the present disclosure;

[0018] Figure 4 The illustration shows another example transmission scenario according to some embodiments of the present disclosure;

[0019] Figure 5 The illustration depicts yet another example transmission scenario according to some embodiments of the present disclosure;

[0020] Figure 6 The illustration shows a flowchart of a method implemented at a terminal device according to some embodiments of the present disclosure;

[0021] Figure 7 The illustration shows flowcharts of methods implemented at a network device according to some other embodiments of the present disclosure; and

[0022] Figure 8 A simplified block diagram of an apparatus suitable for implementing embodiments of the present disclosure is shown.

[0023] Throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. Detailed Implementation

[0024] The principles of this disclosure will now be described with reference to some embodiments. It should be understood that these embodiments are described merely for illustration and to help those skilled in the art understand and implement this disclosure, and do not impose any limitation on the scope of this disclosure. The disclosure described herein can be implemented in various other ways besides those described below.

[0025] In the following description and claims, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains.

[0026] References to "an embodiment," "example embodiment," "embodiment," and "some embodiments" in this disclosure indicate that the described embodiments may include specific features, structures, or characteristics, but not every embodiment necessarily includes such specific features, structures, or characteristics. Furthermore, such phrases do not necessarily refer to the same embodiments. Additionally, when a specific feature, structure, or characteristic is described in connection with an embodiment, it is believed that incorporating other embodiments (whether explicitly described or not) to affect such a feature, structure, or characteristic is within the knowledge of those skilled in the art.

[0027] It should be understood that although the terms “first” and “second”, etc., may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, without departing from the scope of the embodiments, a first element may also be referred to as a second element, and similarly, a second element may also be referred to as a first element. As used herein, the term “and / or” includes any and all combinations of one or more of the listed terms.

[0028] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments. As used herein, unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “the” should also include the plural forms. It will be further understood that the terms “comprise,” “comprising,” “has,” “having,” “includes,” and / or “including” as used herein specify the presence of the stated features, elements, and / or components, but do not exclude the presence or addition of one or more other features, elements, components, and / or combinations thereof.

[0029] As used herein, the term "communication network" refers to a network that follows any suitable communication standard, such as 5G NR, Long Term Evolution (LTE), LTE-A Advanced (LTE-A), Wideband Code Division Multiple Access (WCDMA), High-Speed ​​Packet Access (HSPA), Narrowband Internet of Things (NB-IoT), etc. Furthermore, communication between terminal devices and network devices in a communication network can be performed according to any suitable generation of communication protocol, including but not limited to first-generation (1G), second-generation (2G), 2.5G, 2.75G, third-generation (3G), fourth-generation (4G), 4.5G, fifth-generation (5G) communication protocols, and / or any other currently known or to be developed in the future. Embodiments of this disclosure can be applied to various communication systems. Given the rapid development of communications, there will also be communication technologies and systems that embody future types of this disclosure. This should not be construed as limiting the scope of this disclosure to the systems described above.

[0030] As used herein, the term "network device" generally refers to a node in a communication network through which terminal devices can access the network and receive services. Network devices can refer to base stations (BS) or access points (APs), such as Node B (NodeB or NB), Radio Access Network (RAN) nodes, Evolved Node B (eNodeB or eNB), NR NB (also known as gNB), Remote Radio Unit (RRU), Radio Header (RH), infrastructure equipment for V2X (Vehicle-to-Everything) communication, Transmitter Receiver Point (TRP), Receiver Point (RP), Remote Radio Header End (RRH), relay, Integrated Access and Backhaul (IAB) nodes, low-power nodes (such as femtoBS, picoBS), etc., depending on the terminology and technology used.

[0031] As used herein, the term "terminal device" generally refers to any terminal device capable of wireless communication. By way of example and not limitation, a terminal device may also be referred to as a communication device, user equipment (UE), end-user equipment, subscriber station (SS), unmanned aerial vehicle (UAV), portable subscriber station, mobile station (MS), or access terminal (AT). Terminal devices may include, but are not limited to, mobile phones, cellular phones, smartphones, Voice over IP (VoIP) phones, wireless local loop phones, tablets, wearable terminal devices, personal digital assistants (PDAs), portable computers, desktop computers, image capture terminal devices (such as digital cameras), gaming terminal devices, music storage and playback devices, in-vehicle wireless terminal devices, wireless endpoints, mobile stations, laptop embedded devices (LEEs), laptop mounted devices (LMEs), USB dongles, smart devices, wireless customer premises equipment (CPEs), Internet of Things (IoT) devices, watches or other wearable devices, head-mounted displays (HMDs), vehicles, drones, medical devices (e.g., remote surgical equipment), industrial equipment (e.g., robots and / or other wireless devices operating in industrial and / or automated processing chain environments), consumer electronics devices, and devices operating on commercial and / or industrial wireless networks. In the following description, the terms "terminal device," "communication device," "terminal," "user equipment," and "UE" are used interchangeably.

[0032] As used herein, the terms “resource,” “transmission resource,” “resource block,” “physical resource block,” “uplink resource,” or “downlink resource” can refer to any resource used to perform communication between a terminal device and a network device or between terminal devices, such as time-domain resources, frequency-domain resources, spatial-domain resources, code-domain resources, or any other resource capable of communication. In the following description, resources in both the frequency and time domains will be used as examples of transmission resources to illustrate some embodiments of this disclosure. It should be noted that embodiments of this disclosure are equally applicable to other resources in other domains.

[0033] Figure 1 illustrates an example network environment 100 in which exemplary embodiments of the present disclosure may be implemented. Environment 100 (which may be part of a communication network) includes terminal devices and network devices.

[0034] As shown in Figure 1, the communication network 100 may include a terminal device 110 (hereinafter also referred to as user equipment 110 or UE 110). The communication network 100 may also include a network device 120. The network device 120 can manage cell 101. The terminal device 110 and the network device 120 can transmit data and control information to each other within the coverage area of ​​the cell. The link from the network device 120 to the terminal device 110 is called the downlink (DL), and the link from the terminal device 110 to the network device 120 is called the uplink (UL).

[0035] It should be understood that the number of network devices and terminal devices is for illustrative purposes only and does not represent any limitation. System 100 may include any suitable number of network devices and terminal devices appropriate for implementing embodiments of this disclosure. Although not shown, it should be understood that one or more terminal devices may be located in environment 100.

[0036] Communication in communication network 100 can conform to any suitable standard, including but not limited to Global System for Mobile Communications (GSM), LTE, LTE Evolution, LTE-A Advanced, Wideband Code Division Multiple Access (WCDMA), Code Division Multiple Access (CDMA), GSMEDGE Radio Access Network (GERAN), Machine Type Communication (MTC), etc. Furthermore, communication can be performed according to any generation of communication protocols currently known or to be developed in the future. Examples of communication protocols include, but are not limited to, first-generation (1G), second-generation (2G), 2.5G, 2.75G, third-generation (3G), fourth-generation (4G), 4.5G, and fifth-generation (5G) communication protocols.

[0037] In wireless communication systems, the term "duplex" refers to bidirectional communication between two devices, where transmissions in each direction on the link can occur simultaneously (i.e., full-duplex) or at mutually exclusive times (i.e., half-duplex).

[0038] In traditional full-duplex transceivers, a different carrier frequency is used for each link direction. This is called full-duplex frequency division duplex (FD-FDD). Conversely, in half-duplex (HD) transceivers, the link directions are separated by time-domain resources. When the same carrier frequency is used for each link direction, the HD transceiver is called a TDD system, while if different carrier frequencies are used, the system is called half-duplex FDD (HD-FDD). Figure 1B The illustrations depict example duplex modes relevant to some embodiments of this disclosure. For example... Figure 1B As shown, there are FD-FDD mode, TDD mode and HD-FDD mode.

[0039] Advanced full-duplex mode allows the same device to transmit and receive simultaneously on the same carrier, potentially doubling link throughput. Transmission delay is also reduced due to simultaneous bidirectional transmission. However, simultaneous DL and UL transmissions on the same carrier will cause self-interference. On the BS side, this means that DL transmissions can contaminate UL reception, while on the UE side, UL transmissions may contaminate DL reception.

[0040] In practice, achieving full-duplex on the BS side is more feasible than on the UE side because the BS side has more available space, and the Tx / Rx antenna branches can be separated for self-interference cancellation. Furthermore, the base station side can employ more advanced receivers, which is the basis for self-interference cancellation.

[0041] Therefore, one scenario is to deploy full-duplex only on the BS side, while using half-duplex on the UE side. This means that within the time slot set, the BS can send data signals to some UEs and receive data signals from other UEs. Furthermore, non-overlapping frequency resources can be allocated for DL ​​transmissions (to some UEs) and UL receptions (from other UEs) to mitigate self-interference. This full-duplex mode is called Sub-Band Full-Duplex (SBFD). From the UE's perspective, based on the UE's capabilities, UEs can be categorized into SBFD-aware UEs (i.e., BS-aware full-duplex) and SBFD-non-aware UEs.

[0042] In TDD systems, SBFD can be used to enhance UL performance. UL subbands can be configured in some DL symbols or flexible symbols to make more resources available for UL transmissions. In such symbols, some UE UL transmissions can be scheduled in the UL subband, while DL transmissions for other UEs can be scheduled in resources outside the UL subband.

[0043] Figure 1C The illustrations depict example transmission scenarios related to some embodiments of this disclosure. For example... Figure 1CAs shown, the transmission scenario in the TDD system is SBFD, where UL subbands are configured on the DL symbol set and the flexible symbol set. UL transmissions can be scheduled within symbols with UL subbands. Within UL time slots, UL transmissions are scheduled in the active UL bandwidth portion (BWP).

[0044] In the flexible notation of TDD systems, a conflict can occur between the UL channel or signal configured at higher layers and the dynamically indicated DL transmission or dynamically indicated DL communication direction. New Radio (NR) uses the following scheme to handle this conflict.

[0045] If the UE is configured by a higher layer to transmit a Sounding Reference Signal (SRS), Physical Uplink Control Channel (PUCCH), Physical Uplink Shared Channel (PUSCH), or Physical Random Access Channel (PRACH) in a time slot's symbol set, and the UE detects Downlink Control Information (DCI format 2_0), its time slot format value will indicate a time slot format for a subset of symbols in the symbol set as downlink or flexible; or the UE detects a DCI format indicating that the UE receives Channel State Information (CSI) Reference Signal (RS) or Physical Downlink Shared Channel (PDSCH) in a subset of symbols in the symbol set, then - If the UE does not indicate partial cancellation capability, then if the first symbol in the symbol set appears relative to the last symbol of the CORESET in the DCI format detected by the UE. T proc,2 If the UE does not expect to cancel the transmission of PUCCH, PUSCH, or PRACH in the symbol set, then the UE will cancel the actual duplicate transmission of PUCCH, PUSCH, or PUSCH or PRACH in the symbol set. - If the UE indicates partial cancellation capability, the UE does not expect the cancellation symbol set to appear relative to the last symbol of the CORESET in DCI format detected by the UE. T proc,2 The UE cancels the actual duplicate or PRACH transmission of PUCCH, PUSCH, or PUSCH in the remaining symbols of the symbol set. - The UE does not expect the last symbol in the CORESET of DCI format to appear in the subset of cancel symbols relative to the UE's detection of the CORESET. T proc,2 The UE cancels the transmission of SRS in the remaining symbols within the symbol subset.

[0046] T proc,2 This is the PUSCH preparation time corresponding to the UE's processing capabilities.

[0047] Figure 1D The illustration depicts another example transmission scenario related to some embodiments of this disclosure. For example... Figure 1D As shown, time slot #n is a DL time slot, and time slots #n+1 and #n+2 are time slots with flexible symbols. In time slot #n, there exists a DCI indicating that time slots #n+1 and #n+2 are DL time slots. The time gaps between the last symbol of the CORESET adapted to the DCI and the first symbol of the PUCCH in time slot #n+1 and the PUCCH in time slot #n+1 are t1 and t2, respectively, where t1 < T proc,2 ,t2> T proc,2 According to the specifications, - t1< T proc,2 The PUCCH in slot n+1 will not be cancelled (if the UE does not indicate partial cancellation capability). - t2> T proc,2 PUCCH will be cancelled.

[0048] As can be seen from the above, in conventional cases, when DL and UL conflicts occur, the UL transmission configured at the higher layer will be cancelled under various circumstances. For flexible symbols configured with UL subbands, there is an opportunity to mitigate DL and UL conflicts; that is, when a conflict occurs, it is not necessary to cancel the UL transmission because both DL and UL resources are available in these symbols. This is beneficial in improving the efficiency of UL channel or signal transmission. This invention proposes a solution for mitigating DL and UL conflicts in flexible symbols configured with UL subbands.

[0049] In view of the foregoing discussion, embodiments of this disclosure provide a conflict resolution solution. In one aspect of the solution, a terminal device receives signaling from a network device indicating a subset of flexible symbols as downlink (DL) symbols or flexible symbols, wherein the subset of flexible symbols comes from a set of flexible symbols configured with an uplink (UL) subband. The terminal device determines whether to perform a UL transmission within the set of flexible symbols based on whether the UL transmission is within the UL subband. If the UL transmission is within the UL subband, the terminal device performs the UL transmission within the set of flexible symbols. In this way, when a DL and UL conflict occurs, the cancellation of the UL transmission can be avoided, thereby improving communication performance. Reference will be made below. Figures 2 to 8 The principles and implementation of the embodiments of this disclosure are described in detail. Example Method

[0050] Figure 2An example signaling diagram of an example process 200 according to some embodiments of the present disclosure is illustrated. For discussion purposes, reference will be made to... Figure 1A Description example 200.

[0051] In example procedure 200, network device 120 sends signaling 205 202 to terminal device 110, which indicates a subset of flexible symbols as either downlink (DL) symbols or flexible symbols. The subset of flexible symbols comes from a set of flexible symbols configured with an uplink (UL) subband. Accordingly, terminal device 110 receives signaling 210 202 from network device 120. Then, based on whether a UL transmission is within a UL subband, terminal device 110 determines 215 whether to perform a UL transmission within the set of flexible symbols.

[0052] For example, for a flexible symbol configured with a UL subband, when a conflict occurs between a dynamic DL indication and a semi-static configured UL transmission, whether the UE cancels the UL transmission depends on whether the configured UL channel or signal is within the configured UL subband.

[0053] In some embodiments, UL transmission may include sounding reference signal (SRS) transmission, physical uplink control channel (PUCCH) transmission, physical uplink shared channel (PUSCH) transmission, or physical random access channel (PRACH) transmission.

[0054] Then, in the case where the UL transmission is within the UL subband, the terminal device 110 performs 220 UL transmission in the flexible symbol set.

[0055] In some embodiments, if the UL transmission is outside the UL subband, the terminal device 110 may cancel the UL transmission in the 225 flexible symbol set.

[0056] In some embodiments, terminal device 110 may not indicate partial cancellation capability in the time domain, and the first symbol in the flexible symbol set may appear outside a predefined time slot relative to the last symbol of the control resource set in which terminal device 110 detects signaling. When determining whether to perform a UL transmission, if the UL transmission is within the UL subband, terminal device 110 may perform the UL transmission in the flexible symbol via a transceiver. If the UL transmission is outside the UL subband, terminal device 110 may cancel the UL transmission in the flexible symbol.

[0057] For example, if the UE is configured by a higher layer to transmit SRS, PUCCH, PUSCH, or PRACH in a time slot's symbol set, and the UE detects a DCI format that indicates the time slot format with a subset of symbols in the symbol set as downlink or flexible, the UE assumes that the UL subband is still available in the symbol subset indicated as downlink or flexible, based on predefined rules or configuration.

[0058] If the UE does not indicate partial cancellation capability, then if the first symbol in the symbol set appears relative to the last symbol of the CORESET in the DCI format detected by the UE, T proc,2 If the UE does not want to cancel the transmission of PUCCH, PUSCH, or PRACH in the symbol set, then the UE does not expect the transmission of PUCCH, PUSCH, or PRACH in the symbol set to be cancelled; otherwise, - If PUCCH, PUSCH, or PRACH are entirely within the UL subband, the UE does not expect the transmission of PUCCH, PUSCH, or PRACH in the symbol set to be cancelled. - If PUCCH or PUSCH or PRACH is completely outside the UL subband, the UE cancels the actual duplication of PUCCH or PUSCH or PUSCH or PRACH transmission in the symbol set.

[0059] In some embodiments, terminal device 110 may indicate partial cancellation capability in the time domain. When determining whether to perform UL transmission, if the first symbol in the flexible symbol set appears within a predefined time slot relative to the last symbol of the control resource set in which the terminal device detected signaling, terminal device 110 may perform UL transmission via transceiver in at least one symbol in the flexible symbol subset that appears within the predefined time slot. If the UL transmission in the remaining symbols in the flexible symbol subset that appear outside the predefined time slot is within the UL subband, terminal device 110 may perform UL transmission via transceiver in the remaining symbols. If the UL transmission in the remaining symbols in the flexible symbol subset that appear outside the predefined time slot is outside the UL subband, terminal device 110 may cancel the UL transmission in the remaining symbols.

[0060] For example, if the UE indicates partial cancellation capability, the UE does not expect the last symbol in the cancellation symbol set relative to the CORESET in DCI format detected by the UE to appear. T proc,2 The transmission of PUCCH, PUSCH, or PRACH within the symbols. Otherwise - If PUCCH or PUSCH or PRACH is entirely within the UL subband, the UE does not expect actual duplicate PUCCH or PUSCH or PUSCH or PRACH transmissions in the remaining symbols of the symbol set to be cancelled. - If PUCCH or PUSCH or PRACH is completely outside the UL subband, the UE cancels the actual duplication of PUCCH or PUSCH or PUSCH or PRACH transmission in the remaining symbols in the symbol set.

[0061] In some embodiments, a UL transmission may be an SRS transmission. When determining whether to perform a UL transmission, if the first symbol in the flexible symbol set appears within a predefined time slot relative to the last symbol in the control resource set where the terminal device detected signaling, the terminal device 110 may perform an SRS transmission on at least one symbol in the flexible symbol subset that appears within the predefined time slot. If the UL transmission is within the UL subband, the terminal device 110 may perform the UL transmission via transceiver on the remaining symbols in the flexible symbol subset that appear outside the predefined time slot. If the UL transmission is outside the UL subband, the terminal device 110 may cancel the UL transmission on the remaining symbols in the flexible symbol subset that appear outside the predefined time slot.

[0062] For example, the UE does not expect the cancellation symbol subset to appear relative to the last symbol of the CORESET in the DCI format detected by the UE. T proc,2 The transmission of SRS within the symbols. - If the SRS is transmitted entirely in the UL subband, the UE does not expect SRS transmission in the remaining symbols of the symbol subset to be cancelled. Otherwise, the UE cancels SRS transmissions in the remaining symbols of the symbol subset.

[0063] Figure 3 The illustrations depict example transmission scenarios according to some embodiments of the present disclosure. For example... Figure 3 As shown, time slot #n is a DL time slot, and time slots #n+1 and #n+2 are time slots with flexible symbols. UL subbands are configured in time slots #n+1 and #n+2. In each of time slots #n+1 and #n+2, a higher-layer configuration PUCCH is present within the UL subband. DCI is received in time slot #n, indicating that time slots #n+1 and #n+2 are DL time slots. Based on predefined rules or configuration, the UL subband remains available in time slots #1 and #n+2. The time gaps between the last symbol of the CORESET adapted to the DCI and the first symbol of the PUCCH in time slot #n+1 and the PUCCH in time slot #n+1 are t1 and t2, respectively, where t1 < T proc,2 ,t2> T proc,2 According to this solution, - t1< Tproc,2 The PUCCH in slot #n+1 will not be cancelled. - t2> T proc,2 The PUCCH in slot #n+2 will not be canceled because the PUCCH is within the UL subband.

[0064] In some embodiments, terminal device 110 may indicate partial cancellation capability in the frequency domain. When determining whether to perform UL transmission, if a first PRB in the set of Physical Resource Blocks (PRBs) for UL transmission is within the UL subband, terminal device 110 may perform UL transmission in the first PRB via a transceiver, and if a second PRB in the set of PRBs for UL transmission is outside the UL subband, terminal device 110 may cancel UL transmission in the second PRB.

[0065] For example, to handle cases where a portion of the PRB in a semi-statically configured UL transmission is within the UL subband, a UE capability to indicate partial cancellation in the frequency domain has been proposed. If the UE indicates this capability, UL transmissions within the PRB in the UL subband will not be cancelled when a collision occurs. Otherwise, the UL transmissions will be cancelled.

[0066] If the UE is configured by a higher layer to transmit SRS, PUCCH, PUSCH, or PRACH in a time slot symbol set, and the UE detects a DCI format that indicates a time slot format with a subset of symbols in the symbol set as downlink or flexible, - If the UE indicates partial cancellation capability in the frequency domain, then if these PRBs are within the UL subband, the UE does not expect to cancel the transmission of PUCCH, PUSCH, or PRACH in the PRB set. The UE cancels the channel or signal transmission in the remaining PRBs. - If the UE does not indicate partial cancellation capability in the frequency domain, the UE cancels PUCCH, PUSCH, or PRACH transmissions.

[0067] Figure 4 The illustration depicts another example transmission scenario according to some embodiments of the present disclosure. For example... Figure 4 As shown, time slot #n is a DL time slot, and time slots #n+1 and #n+2 are time slots with flexible symbols. UL subbands are configured in time slots #n+1 and #n+2. In time slot #n+2, a high-layer configuration PUSCH exists, partially within the UL subband. In time slot #n, the DCI indicates that time slot #n+2 is a DL time slot. The time gap between the last symbol of the CORESET adapted to the DCI and the first symbol of the PUSCH in time slot #n+2 is t1, t1> T proc,2 Based on these proposals, - t1> T proc,2 PUSCH within the PRB set of the UL subband will not be cancelled. PUSCHRB outside the UL subband will be cancelled.

[0068] In some embodiments, terminal device 110 may not indicate partial cancellation capability in the time domain. When determining whether to perform UL transmission, if the UL transmission is outside the UL subband, terminal device 110 may cancel the UL transmission in the flexible symbol and perform the UL transmission in at least one resource in the UL subband configured for UL transmission.

[0069] In some embodiments, the priority of at least one resource configured for UL transmission in the UL subband may be lower than the priority of at least one resource configured for UL transmission in the UL bandwidth portion (BWP). When determining whether to perform a UL transmission, if there is no conflict between the DL symbol and the UL transmission, the terminal device 110 may perform a UL transmission on at least one resource in the UL BWP via a transceiver; and if there is a conflict between the DL symbol and the UL transmission, the terminal device may perform a UL transmission on at least one resource in the UL subband via a transceiver.

[0070] For example, to further reduce the cancellation of high-layer configured PUCCHs when conflicts occur, UL subband PUCCH resources are introduced into the PUCCH resource configuration in the CSI report, so that when a PUCCH in the UL BWP must be cancelled, it can be sent in the configured PUCCH resources in the UL subband.

[0071] According to TS 38.331, the PUCCH resource used for CSI reporting is configured through the IE in PUCCH-CSI-Resource, which is included in the IE CSI-Report-Config for CSI reporting, as shown in the figure below.

[0072] PUCCH-CSI-Resource indicates the PUCCH resources in each BWP used for CSI reporting. According to this solution, a new IE, PUCCH-ResourceSubband, is introduced into PUCCH-CSI-Resource, which indicates the available PUCCH resources in the UL subband for CSI reporting. Therefore, PUCCH-CSI-Resource is updated to...

[0073] When an associated UL BWP is configured as the active BWP, PUCCH resources in the UL subband can be available. The association between the UL subband and the UL BWP can be based on configuration or on predefined rules, such as the UL subband being fully associated with the UL BWP.

[0074] In some embodiments, the priority of at least one resource in the UL subband configured for UL transmission may be higher than the priority of at least one resource in the UL BWP configured for UL transmission. When determining whether to perform a UL transmission, the terminal device 110 may perform a UL transmission on at least one resource in the UL subband via a transceiver, regardless of whether there is a conflict between the DL symbol and the UL transmission.

[0075] In some embodiments, the higher of the priority of at least one resource in the UL subband and the priority of at least one resource in the UL BWP can be configured by the network device 120.

[0076] The following embodiments are proposed for using PUCCH resources for CSI feedback. - For CSI reports in UL time slots, the UL BWP's PUCCH resource (i.e., PUCCH-Resource) is used for feedback. - For CSI reports in DL slots with UL subbands, the PUCCH resource of the UL subband (i.e., PUCCH-ResourceSubband) is used for feedback. - For CSI reports in flexible symbols with UL sub-bands, Option 1: The PUCCH resources of the UL BWP have a higher priority than the PUCCH resources of the UL subband. Option 2: The PUCCH resources of the UL subband have a higher priority than the PUCCH of the UL BWP. Option 3: Which PUCCH resource has higher priority is configured by the BS.

[0077] For CSI reporting in flexible symbols with UL subbands, especially for option 1 or option 3, where the UL BWP PUCCH resource is configured with higher priority, the UL BWP PUCCH resource is used for CSI reporting if there is no conflict between DL and UL, while the UL subband PUCCH resource can be used when a conflict occurs.

[0078] If the UE is configured by a higher layer to transmit PUCCH in a set of symbols within a time slot, and the UE detects the DCI format, its time slot format value will have a time slot format indication of a subset of symbols in the symbol set, either downlink or flexible. - If the first symbol in the symbol set appears relative to the last symbol of the CORESET in the DCI format detected by the UE. T proc,2 If the UE does not expect to cancel the transmission of PUCCH in the symbol set, the UE will send the PUCCH in the configured PUCCH resource in the UL BWP. Otherwise, ▪ The UE will cancel PUCCH transmission in the UL BWP, but will send PUCCH in the configured PUCCH resource in the UL subband.

[0079] Figure 5 The illustration depicts yet another example transmission scenario according to some embodiments of the present disclosure. For example... Figure 5 As shown, time slot #n is a DL time slot, and time slots #n+1 and #n+2 are time slots with flexible symbols. A UL subband is configured in time slot #n+2, and a higher-layer PUCCH resource is present in the UL BWP, while a PUCCH resource is present in the UL subband within time slot #n+2. In time slot #n, the DCI indicates that time slot #n+2 is a DL time slot, and the time gap between the last symbol of the CORESET adapted to the DCI and the first symbol of the PUCCH in time slot #n+2 is t1, where t1> T proc,2 According to this solution, - t1> T proc,2 The UE cancels PUCCH transmission in the UL BWP, but sends PUCCH in the UL subband.

[0080] In some embodiments, the UL transmission can be a first UL transmission, the UL subband can be a first UL subband, and the flexible symbol set can be a first flexible symbol set. The terminal device 110 can also receive a disable signaling message from the network device via a transceiver, indicating that the UL subband is disabled for the second UL transmission. Then, if the second UL subband is not present, the terminal device 110 can determine whether to perform the second UL transmission in the second flexible symbol set. If the second UL transmission is determined to be performed, the terminal device 110 can perform the second UL transmission in the second flexible symbol set via the transceiver; and if the second UL transmission is determined not to be performed, the terminal device can cancel the second UL transmission in the second flexible symbol set.

[0081] For example, if the UE is configured by a higher layer to transmit SRS, PUCCH, PUSCH, or PRACH in a symbol set of a time slot, where the time slot is a DL time slot configured with UL subbands (or these UL signals / channels are transmitted in a flexible symbol set with UL subbands), and the UE receives a DCI indicating that the UL subbands are disabled, - If the UE does not indicate partial cancellation capability, then if the first symbol in the symbol set appears relative to the last symbol of the CORESET in the DCI format detected by the UE. T proc,2 If the UE does not expect to cancel the transmission of PUCCH, PUSCH, or PRACH in the symbol set, then the UE will cancel the actual duplicate transmission of PUCCH, PUSCH, or PUSCH or PRACH in the symbol set. - If the UE indicates partial cancellation capability, the UE does not expect the cancellation symbol set to appear relative to the last symbol of the CORESET in DCI format detected by the UE. T proc,2 The UE cancels the actual duplicate or PRACH transmission of PUCCH, PUSCH, or PUSCH in the remaining symbols of the symbol set. - The UE does not expect the last symbol in the CORESET of DCI format to appear in the subset of cancel symbols relative to the UE's detection of the CORESET. T proc,2 The UE cancels the transmission of SRS in the remaining symbols within the symbol subset.

[0082] In some embodiments, the signaling may include downlink control information (DCI), and the disable signaling may include DCI.

[0083] Refer again Figure 2 Network device 120 determines whether 230 should monitor UL transmissions in the flexible symbol set based on whether the UL transmission is within the UL subband.

[0084] Then, in the case where the UL transmission is within the UL subband, network device 120 monitors 235 UL transmissions in a flexible symbol set.

[0085] In some embodiments, terminal device 110 may not indicate partial cancellation capability in the time domain, and the first symbol in the flexible symbol set may appear outside the predefined time gap of the last symbol in the control resource set in which terminal device 110 detects signaling. When determining whether to monitor UL transmissions, network device 120 may monitor UL transmissions in the flexible symbols if the UL transmission is within the UL subband.

[0086] In some embodiments, terminal device 110 may indicate partial cancellation capability in the time domain. When determining whether to monitor UL transmissions, if the first symbol in the flexible symbol set appears within a predefined time gap relative to the last symbol in the control resource set where the terminal device detected signaling, network device 120 may monitor UL transmissions in at least one symbol in the flexible symbol subset that appears within the predefined time gap; and if the remaining symbols in the flexible symbol subset that appear outside the predefined time gap are within the UL subband, network device may monitor UL transmissions in the remaining symbols.

[0087] In some embodiments, UL transmissions may be SRS transmissions. When determining whether to monitor UL transmissions, if the first symbol in the flexible symbol set appears within a predefined time gap relative to the last symbol in the control resource set where the terminal device detected signaling, the network device 120 may monitor SRS transmissions in at least one symbol in the flexible symbol subset that appears within the predefined time gap. If the UL transmission is within a UL subband, the network device 120 may monitor the UL transmission in the remaining symbols in the flexible symbol subset that appear outside the predefined time gap.

[0088] In some embodiments, terminal device 110 may indicate partial cancellation capability in the frequency domain. When determining whether to monitor UL transmissions, network device 120 may monitor UL transmissions in the first PRB if the first PRB in the set of physical resource blocks (PRBs) used for UL transmissions is within the UL subband.

[0089] In some embodiments, terminal device 110 may not indicate partial cancellation capability in the time domain. When determining whether to monitor UL transmissions, network device 120 may configure resources for UL transmissions in the UL subband, and if the UL transmissions are outside the UL subband, monitor the UL transmissions in at least one resource configured for the UL transmissions in the UL subband.

[0090] In some embodiments, the priority of at least one resource configured for UL transmission in the UL subband may be lower than the priority of at least one resource configured for UL transmission in the UL bandwidth portion (BWP). When determining whether to monitor UL transmission, network device 120 may monitor UL transmission on at least one resource in the UL BWP if there is no conflict between DL symbols and UL transmission, and may monitor UL transmission on resources configured on at least one resource in the UL subband if there is a conflict between DL symbols and UL transmission.

[0091] In some embodiments, the priority of at least one resource configured for UL transmission in the UL subband may be higher than the priority of at least one resource in the UL BWP used for UL transmission. When determining whether to monitor UL transmission, network device 120 may monitor UL transmission on at least one resource in the UL subband, regardless of whether there is a conflict between the DL symbol and the UL transmission.

[0092] In some embodiments, network device 120 may configure which of the priorities of at least one resource in the UL subband and at least one resource in the ULBWP is higher, and send the priority of at least one resource in the UL subband and the priority of at least one resource in the UL BWB to the terminal device.

[0093] In some embodiments, the UL transmission can be a first UL transmission, the UL subband can be a first UL subband, and the flexible symbol set can be a first flexible symbol set. The network device 120 can also send a disable signaling message to the terminal device indicating that the UL subband is disabled, and determine whether to monitor the second UL transmission in the second flexible symbol set if the second UL subband does not exist. Then, if the second UL transmission is determined to be performed, the network device 120 can monitor the second UL transmission in the second flexible symbol set.

[0094] In general, in some embodiments of this disclosure: - For flexible symbols configured with UL subbands, when a conflict occurs between dynamic DL indication and semi-static configured UL transmission, whether the UE cancels UL transmission depends on whether the configured UL channel / signal is within the configured UL subband. - A UE capability to indicate partial cancellation in the frequency domain has been introduced. If the UE indicates this capability, UL transmissions in the PRB within the UL subband will not be cancelled when a collision occurs. Otherwise, UL transmissions will be cancelled. - A PUCCH resource for the UL subband in the PUCCH resource configuration for CSI reporting has been introduced. In this way, when a PUCCH in the UL BWP must be cancelled, it can be sent in the configured PUCCH resource in the UL subband. ▪ If there is no conflict between DL and UL, the UL BWP PUCCH resource is used for CSI reporting. When a conflict occurs, the UL sub-band PUCCH resource can be used.

[0095] In this way, when DL and UL conflict, the cancellation of UL transmission can be avoided, thereby improving communication performance.

[0096] Figure 6The illustration shows a flowchart of a method implemented at a terminal device according to some embodiments of the present disclosure. In some embodiments, method 600 may be implemented at a communication device, such as... Figure 1A The terminal device 110 is shown. In some other embodiments, method 600 can be performed on... Figure 1A The method is implemented at a device not shown. Furthermore, it should be understood that method 600 may include additional boxes not shown and / or some boxes shown may be omitted, and the scope of this disclosure is not limited in this respect. For the purposes of discussion, reference will be made to… Figure 1A Method 600 is described from the perspective of terminal device 110.

[0097] At block 610, terminal device 110 receives signaling from network device via transceiver, which indicates a subset of flexible symbols as either downlink (DL) symbols or flexible symbols. The subset of flexible symbols comes from a set of flexible symbols configured with an uplink (UL) subband. At block 620, terminal device 110 determines whether to perform a UL transmission within the flexible symbol set based on whether the UL transmission is within the UL subband. At block 630, if the UL transmission is within the UL subband, terminal device 110 performs the UL transmission within the flexible symbol set via transceiver.

[0098] In some embodiments, UL transmission may include sounding reference signal (SRS) transmission, physical uplink control channel (PUCCH) transmission, physical uplink shared channel (PUSCH) transmission, or physical random access channel (PRACH) transmission.

[0099] In some embodiments, when UL transmissions are outside of UL subbands, terminal device 110 may cancel UL transmissions in the flexible symbol set.

[0100] In some embodiments, terminal device 110 may not indicate partial cancellation capability in the time domain, and the first symbol in the flexible symbol set may appear outside a predefined time slot relative to the last symbol of the control resource set in which terminal device 110 detected signaling. When determining whether to perform a UL transmission, if the UL transmission is within the UL subband, terminal device 110 may perform the UL transmission in the flexible symbol via a transceiver. If the UL transmission is outside the UL subband, terminal device 110 may cancel the UL transmission in the flexible symbol.

[0101] In some embodiments, terminal device 110 may indicate partial cancellation capability in the time domain. When determining whether to perform UL transmission, if the first symbol in the flexible symbol set appears within a predefined time slot relative to the last symbol in the control resource set in which the terminal device detected signaling, terminal device 110 may perform UL transmission via transceiver in at least one symbol in the flexible symbol subset that appears within the predefined time slot. If the remaining symbols in the flexible symbol subset that appear outside the predefined time slot are within the UL subband, terminal device 110 may perform UL transmission via transceiver in the remaining symbols. If the remaining symbols in the flexible symbol subset that appear outside the predefined time slot are outside the UL subband, terminal device 110 may cancel UL transmission in the remaining symbols.

[0102] In some embodiments, a UL transmission may be an SRS transmission. When determining whether to perform a UL transmission, if the first symbol in the flexible symbol set appears within a predefined time slot relative to the last symbol in the control resource set where the terminal device detected signaling, the terminal device 110 may perform an SRS transmission on at least one symbol in the flexible symbol subset that appears within the predefined time slot. If the UL transmission is within the UL subband, the terminal device 110 may perform the UL transmission via transceiver on the remaining symbols in the flexible symbol subset that appear outside the predefined time slot. If the UL transmission is outside the UL subband, the terminal device 110 may cancel the UL transmission on the remaining symbols in the flexible symbol subset that appear outside the predefined time slot.

[0103] In some embodiments, terminal device 110 may indicate partial cancellation capability in the frequency domain. When determining whether to perform UL transmission, if a first PRB in the set of Physical Resource Blocks (PRBs) for UL transmission is within the UL subband, terminal device 110 may perform UL transmission in the first PRB via a transceiver, and if a second PRB in the set of PRBs for UL transmission is outside the UL subband, terminal device 110 may cancel UL transmission in the second PRB.

[0104] In some embodiments, terminal device 110 may not indicate partial cancellation capability in the time domain. When determining whether to perform UL transmission, if the UL transmission is outside the UL subband, terminal device 110 may cancel the UL transmission in the flexible symbol and perform the UL transmission in at least one resource in the UL subband configured for UL transmission.

[0105] In some embodiments, the priority of at least one resource in the UL subband configured for UL transmission may be lower than the priority of at least one resource in the UL bandwidth portion (BWP) configured for UL transmission. When determining whether to perform a UL transmission, if there is no conflict between the DL symbol and the UL transmission, the terminal device 110 may perform a UL transmission on at least one resource in the UL BWP via a transceiver; and if there is a conflict between the DL symbol and the UL transmission, the terminal device may perform a UL transmission on at least one resource in the UL subband via a transceiver.

[0106] In some embodiments, the priority of at least one resource in the UL subband configured for UL transmission may be higher than the priority of at least one resource in the UL BWP configured for UL transmission. When determining whether to perform a UL transmission, the terminal device 110 may perform a UL transmission on at least one resource in the UL subband via a transceiver, regardless of whether there is a conflict between the DL symbol and the UL transmission.

[0107] In some embodiments, the priority of at least one resource in the UL subband and the priority of at least one resource in the UL BWP can be configured by the network device.

[0108] In some embodiments, the UL transmission may be a first UL transmission, the UL subband may be a first UL subband, and the flexible symbol set may be a first flexible symbol set. The terminal device 110 may also receive a disable signaling message from the network device via a transceiver, the disable signaling message indicating that the UL subband is disabled for the second UL transmission. Then, if the second UL subband does not exist, the terminal device 110 may determine whether to perform the second UL transmission in the second flexible symbol set. If the second UL transmission is determined to be performed, the terminal device 110 may perform the second UL transmission in the second flexible symbol set via the transceiver, and if the second UL transmission is determined not to be performed, the terminal device may cancel the second UL transmission in the second flexible symbol set. In some embodiments, the signaling may include downlink control information (DCI), and the disable signaling may include DCI.

[0109] Figure 7 The illustration shows a flowchart of a method implemented at a network device according to some embodiments of the present disclosure. In some embodiments, method 700 may be implemented at a communication device, such as... Figure 1A The network device 120 is shown. In some other embodiments, method 700 can be performed on... Figure 1A The method is implemented at a device not shown. Furthermore, it should be understood that method 700 may include additional boxes not shown and / or some boxes shown may be omitted, and the scope of this disclosure is not limited in this respect. For the purposes of discussion, reference will be made to… Figure 1A Method 700 is described from the perspective of network device 120.

[0110] At box 710, network device 120 sends signaling to the terminal device via a transceiver, indicating a subset of flexible symbols as either downlink (DL) symbols or flexible symbols. The subset of flexible symbols comes from a set of flexible symbols configured with an uplink (UL) subband. At box 720, network device 120 determines whether to monitor UL transmissions within the flexible symbol set based on whether the UL transmission is within the UL subband. At box 730, if the UL transmission is within the UL subband, network device 120 monitors the UL transmission within the flexible symbol set.

[0111] In some embodiments, UL transmission may include sounding reference signal (SRS) transmission, physical uplink control channel (PUCCH) transmission, physical uplink shared channel (PUSCH) transmission, or physical random access channel (PRACH) transmission.

[0112] In some embodiments, the terminal device may not indicate partial cancellation capability in the time domain, and the first symbol in the flexible symbol set may appear outside a predefined time gap relative to the last symbol of the control resource set in which the terminal device 110 detected signaling. When determining whether to monitor UL transmissions, if the UL transmission is within a UL subband, the network device 120 may monitor the UL transmission in the flexible symbols.

[0113] In some embodiments, the terminal device may indicate partial cancellation capability in the time domain. When determining whether to monitor UL transmissions, if the first symbol in the flexible symbol set appears within a predefined time gap relative to the last symbol in the control resource set in which the terminal device detected signaling, the network device 120 may monitor UL transmissions in at least one symbol in the flexible symbol subset that appears within the predefined time gap; and if the remaining symbols in the flexible symbol subset that appear outside the predefined time gap are within the UL subband, the network device may monitor UL transmissions in the remaining symbols.

[0114] In some embodiments, UL transmissions may be SRS transmissions. When determining whether to monitor UL transmissions, if the first symbol in the flexible symbol set appears within a predefined time gap relative to the last symbol in the control resource set where the terminal device detected signaling, the network device 120 may monitor SRS transmissions in at least one symbol in the flexible symbol subset that appears within the predefined time gap. If the UL transmission is within a UL subband, the network device 120 may monitor the UL transmission in the remaining symbols in the flexible symbol subset that appear outside the predefined time gap.

[0115] In some embodiments, the terminal device may indicate partial cancellation capability in the frequency domain. When determining whether to monitor UL transmissions, if the first PRB in the Physical Resource Block (PRB) set for UL transmissions is within the UL subband, the network device 120 may monitor UL transmissions in the first PRB.

[0116] In some embodiments, the terminal device may not indicate partial cancellation capability in the time domain. When determining whether to monitor UL transmissions, network device 120 may configure resources for UL transmissions in the UL subband, and if the UL transmissions are outside the UL subband, monitor the UL transmissions in at least one resource configured for UL in the UL subband.

[0117] In some embodiments, the priority of at least one resource configured for UL transmission in the UL subband may be lower than the priority of at least one resource configured for UL transmission in the UL bandwidth portion (BWP). When determining whether to monitor UL transmission, network device 120 may monitor UL transmission on at least one resource in the UL BWP if there is no conflict between DL symbols and UL transmission, and may monitor UL transmission on resources configured on at least one resource in the UL subband if there is a conflict between DL symbols and UL transmission.

[0118] In some embodiments, the priority of at least one resource configured for UL transmission in the UL subband may be higher than the priority of at least one resource in the UL BWP used for UL transmission. When determining whether to monitor UL transmission, network device 120 may monitor UL transmission on at least one resource in the UL subband, regardless of whether there is a conflict between the DL symbol and the UL transmission.

[0119] In some embodiments, network device 120 may configure which of the priorities of at least one resource in the UL subband and at least one resource in the ULBWP is higher, and send the priority of at least one resource in the UL subband and the priority of at least one resource in the UL BWB to the terminal device.

[0120] In some embodiments, the UL transmission may be a first UL transmission, the UL subband may be a first UL subband, and the flexible symbol set may be a first flexible symbol set. The network device 120 may also send a disable signaling message to the terminal device indicating that the UL subband is disabled, and, if the second UL subband does not exist, determine whether to monitor the second UL transmission in the second flexible symbol set. Then, if the second UL transmission is determined to be performed, the network device 120 may monitor the second UL transmission in the second flexible symbol set. In some embodiments, the signaling message may include downlink control information (DCI), and the disable signaling message may include DCI. Example device

[0121] Figure 8 A simplified block diagram of a device 800 suitable for implementing embodiments of the present disclosure is illustrated. Device 800 can be considered as follows: Figure 1A Another example implementation of the terminal device 110 and network device 120 shown. Therefore, device 800 can be implemented at or as a part of network device 120.

[0122] As shown in the figure, device 800 includes a processor 810, a memory 820 coupled to the processor 810, suitable transmitters (TX) and receivers (RX) 840 coupled to the processor 810, and a communication interface coupled to the TX / RX 840. The memory 820 stores at least a portion of a program 830. The TX / RX 840 is used for bidirectional communication. The TX / RX 840 has at least one antenna to facilitate communication, but in practice, there may be multiple access nodes mentioned in this disclosure. The communication interface can represent any interface required for communication with other network elements, such as an X2 interface for bidirectional communication between eNBs or gNBs, an S1 interface for communication between a Mobility Management Entity (MME) / Serving Gateway (S-GW) and an eNB or gNB, an Un interface for communication between an eNB or gNB and a Relay Node (RN), or a Uu interface for communication between an eNB or gNB and a terminal device.

[0123] Assume that program 830 includes program instructions that, when executed by the associated processor 810, enable device 800 to operate according to embodiments of this disclosure, as shown herein with reference to Figures 1 to 12. Figure 7 The embodiments discussed herein can be implemented by computer software executable by the processor 810 of device 800, or by hardware, or by a combination of software and hardware. Processor 810 can be configured to implement various embodiments of this disclosure. Furthermore, a combination of processor 810 and memory 820 can form a processing unit 850 suitable for implementing various embodiments of this disclosure.

[0124] Memory 820 can be of any type suitable for a local technology network and can be implemented using any suitable data storage technology, such as, as non-limiting examples, non-transitory computer-readable storage media, semiconductor-based memory devices, magnetic memory devices and systems, optical memory devices and systems, fixed memory, and removable memory. Although only one memory 820 is shown in device 800, several physically different memory modules may be present in device 800. Processor 810 can be of any type suitable for a local technology network and, as non-limiting examples, may include one or more of a general-purpose computer, a special-purpose computer, a microprocessor, a digital signal processor (DSP), and a processor based on a multi-core processor architecture. Device 800 may have multiple processors, such as application-specific integrated circuit chips that are time-dependent on a clock synchronized with the main processor.

[0125] In some embodiments, an apparatus capable of performing method 600 (e.g., terminal device 110) may include components for performing corresponding steps of method 600. These components may be implemented in any suitable form. For example, the components may be implemented in a circuit system or a software module. In some embodiments, the components include at least one processor and at least one memory including computer program code configured to, together with the at least one processor, cause the execution of method 600.

[0126] In some embodiments, an apparatus capable of performing method 700 (e.g., network device 120) may include components for performing corresponding steps of method 700. These components may be implemented in any suitable form. For example, the components may be implemented in a circuit system or a software module. In some embodiments, the components include at least one processor and at least one memory including computer program code configured to, together with the at least one processor, cause the execution of method 700.

[0127] Generally, the various embodiments of this disclosure can be implemented using hardware or dedicated circuitry, software, logic, or any combination thereof. Some aspects can be implemented using hardware, while others can be implemented using firmware or software that can be executed by a controller, microprocessor, or other computing device. Although various aspects of the embodiments of this disclosure are illustrated and described as block diagrams, flowcharts, or using some other graphical representation, it should be understood that, as non-limiting examples, the blocks, devices, systems, techniques, or methods described herein can be implemented using hardware, software, firmware, dedicated circuitry or logic, general-purpose hardware or controllers or other computing devices, or some combination thereof.

[0128] This disclosure also provides at least one computer program product tangibly stored on a non-transitory computer-readable storage medium. The computer program product includes computer-executable instructions, such as instructions included in a program module, which execute in a device on a target real or virtual processor to perform the processes or methods described above. Typically, a program module includes routines, programs, libraries, objects, classes, components, data structures, etc., that perform a specific task or implement a specific abstract data type. In various embodiments, the functionality of a program module can be combined or split among program modules as needed. The machine-executable instructions of the program module can execute within a local or distributed device. In a distributed device, the program module can reside on both local and remote storage media.

[0129] Program code used to perform the methods of this disclosure may be written in any combination of one or more programming languages. This program code may be provided to a processor or controller of a general-purpose computer, special-purpose computer, or other programmable data processing apparatus, such that when executed by the processor or controller, the program code causes the functions / operations specified in the flowcharts and / or block diagrams to be implemented. The program code may be executed entirely on a machine, partially on a machine, as a stand-alone software package, partially on a machine and partially on a remote machine, or entirely on a remote machine or server.

[0130] The aforementioned program code may be embodied on a machine-readable medium, which may be any tangible medium capable of containing or storing a program for use by or in connection with an instruction execution system, apparatus, or device. A machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatuses, or devices, or any suitable combination thereof. More specific examples of machine-readable storage media will include electrical connections having one or more wires, portable computer floppy disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable optical disc read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof.

[0131] Furthermore, although operations are described in a specific order, this should not be construed as requiring the operations to be performed in the specific order shown or sequentially, or to perform all of the shown operations to obtain the desired result. In some cases, multitasking and parallel processing may be advantageous. Similarly, while several specific implementation details are included in the foregoing discussion, these should not be construed as limiting the scope of this disclosure, but rather as descriptions of features that may be specific to particular embodiments. Certain features described in the context of a single embodiment may also be implemented in combination in a single embodiment. Conversely, the various features described in the context of a single embodiment may also be implemented individually or in any suitable sub-combination in multiple embodiments.

[0132] Although this disclosure has been described in language specific to structural features and / or methodological actions, it should be understood that this disclosure as defined in the appended claims is not necessarily limited to the specific features or actions described above. Rather, the specific features and actions described above are disclosed as exemplary forms of implementing the claims.

Claims

1. A terminal device, comprising: processor; as well as The transceiver is coupled to the processor. The processor is configured as follows: The transceiver receives signaling from the network device, the signaling indicating a subset of flexible symbols as downlink DL symbols or flexible symbols, wherein the subset of flexible symbols comes from a set of flexible symbols configured with uplink UL subbands; Based on determining whether the UL transmission is within the UL subband, determine whether the UL transmission should be performed within the flexible symbol set; and In the case that the UL transmission is within the UL subband, the UL transmission is performed via the transceiver in the flexible symbol set.

2. The terminal device according to claim 1, wherein the UL transmission includes one of the following: Detection of SRS transmission; Physical uplink control channel (PUCCH) transmission; Physical uplink shared channel (PUSCH) transmission; or Physical Random Access Channel (PRACH) transmission.

3. The terminal device according to claim 1, wherein the processor is further configured to: If the UL transmission is outside the UL subband, cancel the UL transmission in the flexible symbol set.

4. The terminal device of claim 1, wherein the terminal device does not indicate partial cancellation capability in the time domain, the first symbol in the flexible symbol set appears outside a predefined time gap relative to the last symbol of the control resource set in which the terminal device detects the signaling, and wherein determining whether to perform the UL transmission comprises: In the case that the UL transmission is within the UL subband, the UL transmission is performed in the flexible symbol via the transceiver; as well as In the case where the UL transmission is outside the UL subband, the UL transmission in the flexible symbol is cancelled.

5. The terminal device of claim 1, wherein the terminal device indicates partial cancellation capability in the time domain, and wherein determining whether to perform the UL transmission comprises: If the first symbol in the flexible symbol set appears within a predefined time gap relative to the last symbol in the control resource set in which the terminal device detects the signaling, the UL transmission is performed via the transceiver in at least one symbol in the flexible symbol subset that appears within the predefined time gap. If any remaining symbols in the flexible symbol subset that appear outside the predefined time interval are within the UL subband, the UL transmission is performed via the transceiver in the remaining symbols. as well as If any remaining symbols in the flexible symbol subset appear outside the predefined time interval and are outside the UL subband, the UL transmission of the remaining symbols is cancelled.

6. The terminal device of claim 1, wherein the UL transmission is an SRS transmission, and wherein determining whether to perform the UL transmission includes: If the first symbol in the flexible symbol set appears within a predefined time gap relative to the last symbol of the control resource set in which the terminal device detects the signaling, the SRS transmission is performed via the transceiver in at least one symbol in the flexible symbol subset that appears within the predefined time gap. In the case that the UL transmission is within the UL subband, the UL transmission is performed via the transceiver in the remaining symbols in the flexible symbol subset that appear outside the predefined time slot; and If the UL transmission occurs outside the UL subband, cancel the UL transmission in the remaining symbols of the flexible symbol subset that appear outside the predefined time interval.

7. The terminal device of claim 1, wherein the terminal device indicates partial cancellation capability in the frequency domain, and wherein determining whether to perform the UL transmission comprises: In the case that the first PRB in the set of Physical Resource Blocks (PRBs) used for the UL transmission is within the UL subband, the UL transmission is performed via the transceiver in the first PRB; as well as If the second PRB in the PRB set used for the UL transmission is outside the UL subband, the UL transmission in the second PRB is cancelled.

8. The terminal device of claim 1, wherein the terminal device does not indicate partial cancellation capability in the time domain, and wherein determining whether to perform the UL transmission comprises: In the case where the UL transmission is outside the UL subband, the UL transmission in the flexible symbol is cancelled; as well as The UL transmission is performed via the transceiver in at least one resource in the UL subband that is configured for the UL transmission.

9. The terminal device of claim 8, wherein the priority of the at least one resource configured for the UL transmission in the UL subband is lower than the priority of the at least one resource configured for the UL transmission in the UL bandwidth portion (BWP), and wherein determining whether to perform the UL transmission comprises: In the absence of a conflict between the DL symbol and the UL transmission, the UL transmission is performed via the transceiver on at least one resource in the UL BWP; and In the event of a conflict between the DL symbol and the UL transmission, the UL transmission is performed via the transceiver on at least one resource in the UL subband.

10. The terminal device of claim 8, wherein the priority of the at least one resource in the UL subband configured for the UL transmission is higher than the priority of the at least one resource in the UL BWP configured for the UL transmission, and wherein determining whether to perform the UL transmission comprises: The UL transmission is performed via the transceiver on at least one resource in the UL subband, regardless of whether there is a conflict between the DL symbol and the UL transmission.

11. The terminal device according to claim 9 or 10, wherein the priority of the at least one resource in the UL subband and the priority of the at least one resource in the UL BWP are configured by the network device.

12. The terminal device according to any one of claims 1 to 10, wherein the UL transmission is a first UL transmission, the UL subband is a first UL subband, the flexible symbol set is a first flexible symbol set, and the processor is further configured to: The transceiver receives a disable signaling message from the network device, the disable signaling message indicating that the UL subband is disabled for second UL transmission; In the absence of a second UL subband, determine whether to perform the second UL transfer in the second flexible symbol set; If the second UL transmission is determined to be performed, the second UL transmission is performed via the transceiver in the second flexible symbol set; and If the second UL transmission is determined not to be performed, the second UL transmission in the second flexible symbol set is cancelled.

13. The terminal device of claim 12, wherein the signaling includes downlink control information (DCI), and the disable signaling includes DCI.

14. A network device, comprising: processor; as well as The transceiver is coupled to the processor. The processor is configured as follows: The transceiver sends signaling to the terminal device, the signaling indicating a subset of flexible symbols as downlink DL symbols or flexible symbols, wherein the subset of flexible symbols comes from a set of flexible symbols configured with uplink UL subbands; Based on determining whether the UL transmission is within the UL subband, it is determined whether the UL transmission should be monitored in the flexible symbol set; and When the UL transmission is within the UL subband, the UL transmission is monitored in the flexible symbol set.

15. A method executed by a terminal device, comprising: The transceiver receives signaling from the network device, the signaling indicating a subset of flexible symbols as downlink DL symbols or flexible symbols, wherein the subset of flexible symbols comes from a set of flexible symbols configured with uplink UL subbands; Based on determining whether the UL transmission is within the UL subband, determine whether the UL transmission should be performed within the flexible symbol set; and In the case that the UL transmission is within the UL subband, the UL transmission is performed via the transceiver in the flexible symbol set.

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